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Denison Mines (USA) Corp.
1050 17th Street, Suite 950
Denver, CO 80265
USA
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August 31, 2009
Sent Via Federal Express
Dane L. Finerfrock, Executive Secretary
Utah Radiation Control Board
Utah Department of Environmental Quality
168 North 1950 West
P.O. Box 144810
SaU Lake City, UT 84114-4810
Re: Transmittal of 2"** Quarter 2009 Routine Groundwater Monitoring Report
White Mesa Uranium Mill GWDP No. UGW370004
Dear Mr. Finerfrock:
Enclosed are two copies of the White Mesa Uranium Mill Groundwater Discharge Monitoring Report
for the 2"'' Quarter, 2009, as required under Parts I.F.I and 2 of the State of Utah Groundwater
Discharge Permit UGW370004.
If you should have any questions regarding this report please contact me.
Yours tmly,
Steven D. Landau
DENISON MINES (USA) CORP.
Manager, Environmental Affairs
cc: Ron Hochstein
Harold Roberts
David Frydenlund
David Turk
Denison Mines USA Corp
1050 17th Street Suite 950
DENISO Denver CO 80265
tti ISI ES Tel [phone]
Fax [phone]
www.denisonmines.com
August 31 2009
Sent Via Federal Express
Dane Finerfrock Executive Secretary
Utah Radiation Control Board
Utah Department of Environmental Quality
168 North 1950 West
P.O Box 144810
Salt Lake City UT 84114-4810
Re Transmittal of Quarter 2009 Routine Groundwater Monitoring Report
White Mesa Uranium Mill GWDP No UGW370004
Dear Mr Finerfrock
Enclosed are two copies of the White Mesa Uranium Mill Groundwater Discharge Monitoring Report
for the Quarter 2009 as required under Parts I.F.I and of the State of Utah Groundwater
Discharge Permit UGW3 70004
If you should have any questions regarding this report please contact me
Yours truly
Steven Landau
DENISON MINES USA CORP
Manager Environmental Affairs
cc Ron Hochstein
Harold Roberts
David Frydenlund
David Turk
White Mesa Uranium Mill
Groundwater Monitoring Report
State of Utah
Groundwater Discharge Permit No UGW370094
2nd Quarter April through June
2009
Prepared by
Denison Mines USA Corp
Suite 950 1050 17th Street
Denver CO 80265
August 2009
INTRODUCTION
This is the Routine Groundwater Monitoring Report as required under Part I.F of State
of Utah Groundwater Discharge Permit No 370004 the Permit for the 2nd quarter of
2009 the Quarter for Denison Mines USA Corps DUSAs White Mesa
Uranium Mill the Mill As required under Parts I.E.1 I.E.2 and I.E.4 of the Permit
this Report includes all recorded field measurements and laboratory analyses for well
monitoring conducted during the Quarter
GROUNDWATER MONITORING
2.1 Samples and Measurements Taken During the Quarter
map showing the location of all groundwater monitoring wells piezometers existing
wells and temporary chloroform contaminant investigation wells is attached under Tab
During the Quarter the following groundwater samples and measurements were taken
during this reporting period April through June
Groundwater Compliance Monitoring
Quarterly Groundwater Compliance Monitoring
Quarterly Groundwater Compliance Monitoring is performed in the wells listed below
pursuant to Part I.E of the Permit
MW-il
MW-14
MW-26 formerly TW4-15
MW-32 formerly TW4-17
ii Accelerated Groundwater Monitoring
In addition to the routine quarterly monitoring referred to above DUSA collected
accelerated monthly samplings for select constituents at wells MW-14 MW-26 and
MW-32 Also accelerated quarterly samples are collected at certain locations and for
select constituents at wells MW-i MW-3 MW-5 MW-12 MW-iS MW-17 MW-18
and MW-19
iii Quarterly Sampling for All New Wells
Quarterly groundwater quality samples were collected from new monitoring wells in
accordance with Part I.H of the Permit during the quarterly sampling event As such
the following monitoring wells were sampled on those dates
New Wells
MW-20 MW-27
MW-22 MW-28
MW-23 MW-29
MW-24 MW-30
MW-25 MW-31
The sample collection dates for monthly samples occurred on April 22 and June 17 2009
respectively Routine quarterly semi-annual and accelerated quarterly sample collection
occurred on May 12 13 14 16 17 18 27 2009
iv Parameters Analyzed
All routine groundwater monitoring samples were analyzed for the parameters listed in
Table and Part I.E .c 2ii of the Permit The accelerated monitoring samples were
analyzed for the more limited specific parameters described in Section 2.4 of this report
Groundwater Head Monitoring
Depth to groundwater was measured in the following wells and/or piezometers pursuant
to Part I.E.2 of the Permit
The quarterly groundwater compliance monitoring wells listed in paragraph
2.1 .a above were measured during the period of June 30 2009 depending on
location
ii Piezometers P-i P-2 P-3 P-4 and P-5 on June 30 2009
iii Existing monitoring well MW-4 on June 30 2009 and all of the temporary
chloroform investigation wells on June 30 2009
iv In addition to the above depth to water measurements are routinely observed
in conjunction with sampling events for all wells sampled during monthly
quarterly and semi-annual monitoring efforts regardless of the sampling
purpose
2.2 Field Data Sheets
Attached under Tab are copies of all field data sheets where field data were
recorded in association with the quarterly effort on May 12 13 14 16 17 18
27 2009 for the groundwater compliance monitoring wells listed in
paragraph 2.1a above
Attached under Tab are copies of all field data sheets where field data were
recorded in association with monthly accelerated monitoring and sampling
efforts during the month of April for monitoring wells MW-14 MW-26 and
MW-32
Attached under Tab are copies of all field data sheets where field data were
recorded in association with monthly accelerated monitoring and sampling
efforts during the month of June for monitoring wells MW-14 MW-26 and
MW-32
2.3 Laboratory Results --Routine Groundwater Monitoring
2.3.1 Copy of Laboratory Results
All analytical results are provided by Energy Laboratories the Mills contract analytical
laboratory the Analytical Laboratory There are four sets of laboratory analytical
results included in this Report
Samples collected for the April accelerated sampling were reported on May 27
2009 Tab Also included under this Tab are the results of duplicate sample of
MW-32 MW-65 4-22-09 Because the wells in the GWDP sampling program
have been equipped with dedicated pumps since the November 2007 sampling
rinsate sample is no longer collected An analysis of field blank was included
with the monthly sampling MW-60 4-22-09
Samples collected for the June accelerated sampling were reported on July
2009 Tab Also included under this tab are the results of analyses for
duplicate sample of MW-32 MW-65 6-17-09 Because the wells in the GWDP
sampling program had been equipped with dedicated pumps for the November
2007 sampling rinsate sample is no longer collected An analyses of field
blank was included with the monthly sampling MW-606-17-09
Samples collected for the Quarter and Accelerated Quarterly samples under
the Permit were reported in four data sets dated July and 14 two sets 2009
Tab Also included under Tab are the results of analyses for duplicate
samples of MW-32 and MW-22 MW-65 5-13-09 and MW-70 5-27-09
respectively field blank was collected for the quarterly sampling episode
MW-60 5-18-09
Note Copies of laboratory QAIQC Summaries are included with the reported data
at corresponding Tabs and
2.3.2 Analysis of Laboratory Results
Under the Permit it is intended that background groundwater quality will be determined
on well-by-well basis as defined by the mean plus second standard deviation
concentration The Mill is currently in the process of working with the Utah Division of
Radiation Control and its consultant URS to establish background including the mean
plus second standard deviation for all of the constituents being sampled under the
Permit Toward this end report entitled Background Groundwater Quality Report
Existing Wells For Denison Mines USA Corp White Mesa Uranium mill Site San
Juan County Utah Intera mc 2006 was transmitted to UDEQ on December 29 2006
In response to UDEQs review revised report was provided to UDEQ in October 2007
Revised Background Groundwater Quality Report Existing Wells For Denison Mines
USA Corp White Mesa Uranium mill Site San Juan County Utah Intera mc 2007
In addition to the background report for existing wells DUSA has transmitted to UDEQ
two addenda to the background report Evaluation of Available Pre-Operational and
Regional Background Data Intera 4/19/07 and Background Groundwater quality
Report New Wells For the Denison Mines USA Corp White Mesa Uranium Mill Site
San Juan County Utah Intera 6/1/07 Finally in response to comments provided by
UDEQ Denison issued revised Addendum to the Report Background Groundwater
quality Report New Wells For the Denison Mines USA Corp White Mesa Uranium
Mill Site San Juan County Utah on April 30 2008 Until such time as background is
established the Permit requires that constituent concentrations in each monitoring well
shall not exceed the Groundwater Compliance Limits GWCLs set out in Table of
the Permit
DUSA review of the analytical results for the Quarter indicates that concentrations of
the following constituents in the following monitoring wells exceeded their respective
GWCLs in Table of the Permit
Table GWCL Exceedances for the Quarter
Monitoring Well
Water Class
Constituent GWCL
ugIL
Sample Result
ugIL
MW-3_Class_III
Selenium 25 32.4
Uranium 15 18.6
MW-5 Class II
Manganese 200 249
MW-12_Class_III
Uranium 15 16.7
MW-14_Class_III
Manganese 400 1940
Uranium 15 60.5
MW-iS_Class_III
Selenium 25 110
Uranium 15 45.6
Monitoring Well
Water Class
Constituent GWCL
ugIL
Sample Result
ugIL
MW-17_Class_III
Uranium 15 26.4
MW-iS_Classli
Thallium 0.05 2.5
MW-26_Class_III
Manganese 400 1120
Uranium 15 32.1
Chloroform 35 2600
Dichiormethane 2.5 47
MW-32_Class_III
Cadmium 2.5 2.98
Manganese 400 4640
hon 5500 7600
separate Notice of these exceedances has been submitted to the Executive Secretary on
August 2009 pursuant to Part I.G .a of the Permit
Unless the compliance status for any constituents in any wells is determined otherwise by
the Executive Secretary the Mill will pursuant to Part I.G.1.b1 of the Permit
commence or continue as the case may be accelerated sampling of each of the foregoing
constituents in its respective well on monthly or quarterly basis as applicable as set
forth below
Table Accelerated Monitoring Requirements as of August 2009
Well
Constituent
Class
Normal
Frequency of
Sampling
Accelerated
Frequency of
Sampling
Commencement of
Accelerated
Monitoring
Tetrahydrofuran Semi-Annual Quarterly 4th Quarter 2005
Manganese Semi-Annual Quarterly Quarter 2006
Manganese Semi-Annual Quarterly Pt Quarter 2006
Selinium Semi-Annual Quarterly Quarter 2006
Thallium Semi-Annual Quarterly 4th Quarter 2005
Uranium Semi-Annual Quarterly 4th Quarter 2005
Tetrahydrofuran Semi-Annual Quarterly Quarter 2006
Manganese Semi-Annual Quarterly 4th Quarter 2005
Fluoride Semi-Annual Quarterly 4th Quarter 2005
Tetrahydrofuran Semi-Annual Quarterly 1st Quarter 2006
Monitoring Well
Water Class
Constituent
Normal
Frequency of
Sampling
Accelerated
Frequency of
Sampling
Commencement of
Accelerated
Monitoring
MW-12
Class_III
Manganese Semi-Annual Quarterly Quarter 2005
Uranium Semi-Annual Quarterly 4th Quarter 2005
MW-14
Class_III
Manganese Quarterly Monthly June 2005
Uranium Quarterly Monthly June 2005
MW-15
Class_III
Selenium Semi Annual Quarterly 4th Quarter 2005
Uranium Semi-Annual Quarterly 4th Quarter 2005
MW-17
Class_III
Uranium Semi-Annual Quarterly 4th Quarter 2005
Thalium Semi-Annual Quarterly Pt Quarter 2006
MW-18
Class_II
Thallium Semi-Annual Quarterly 4th Quarter 2005
Uranium Semi-Annual Quarterly 4th Quarter 2005
Manganese Semi-Annual Quarterly January 2008
MW-19
Class_II
Fluoride Semi-Annual Quarterly Quarter 2006
Selenium Semi-Annual Quarterly 4th Quarter 2005
Thallium Semi-Annual Quarterly Pt Quarter 2006
Uranium Semi-Annual Quarterly 4th Quarter 2005
Nitrate Semi-Annual Quarterly Quarter 2009
MW-26
Class_III
Manganese Quarterly Monthly June 2005
Uranium Quarterly Monthly June 2005
Chloroform Quarterly Monthly June 2005
Dichloromethane Quarterly Monthly September 2005
MW-32
Class_III
Cadmium Quarterly Monthly June 2005
fron Quarterly Monthly June 2005
Manganese Quarterly Monthly June 2005
Nickel Quarterly Monthly June 2005
Gross Alpha Quarterly Monthly March 2007
The background constituent concentrations for all of the new monitoring wells MW-3A
MW-23 MW-24 MW-25 MW-27 MW-28 MW-29 MW-30 and MW-31 through
eight quarters of sampling pursuant to Part I.H.4 of the Permit has been evaluated and
reported to UDEQ under the title Background Groundwater quality Report New Wells
For the Denison Mines USA Corp White Mesa Uranium Mill Site San Juan County
Utah Intera 6/1/07 and its April 30 2008 Addendum This report is currently under
review at UDEQ and as such the GWCLs for these wells have not been determined and
included in the Permit Accordingly it is premature to determine whether or not any of
the sampling results for this Quarter exceed any Permit limits for any constituents in
those wells
2.4 Laboratory Results Accelerated Monitoring
The analytical results for the accelerated monitoring of the various constituents in certain
monitoring wells for the months of April and June 2009 are provided at Tabs and
respectively The results of the Quarter of 2009 quarterly accelerated sampling are
included under Tab
The following table summarizes the initial sample result that triggered accelerated
monitoring for each of the various constituents and the accelerated monitoring results to
date
Table Summary of Accelerated Monitoring Results to Date
Monitoring Welt
Water Class
Constituent
GWCL
ugIL Sample Event Sample Result
ugfL
MW-i_Class_II
Tetrahydrofuran 11.5 2d Qtr 2005 85
4thQtr 2005 58
Pt Qtr 2006 48
Qtr 2006 60
3rd Qtr 2006 26
4th Qtr 2006 16
Pt Qtr 2007 14
2nd Qtr 2007 NA
3rdQtr 2007 15
4thQtr 2007 16
Pt Qtr 2008 2.0
2nt Qtr 2008 2.6
3tdQtr 2008 3.2
4th Qtr 2008
Pt Qtr 2009 6.4
Qtr 2009 8.4
Manganese 200 4th Qtr 2005 215
1tt Qtr 2006 220
2nd Qtr 2006 230
3tdQtr 2006 216
4th Qtr 2006 198
PtQtr 2007 229
Qtr 2007 NA
3rd Qtr 2007 30
4th Qtr 2007 15
itt Qtr 2008 10
2nd Qtr 2008 66
3fdQtr 2008 70
4th Qtr 2008 68
itt Qtr 2009 83
Qtr 2009 79
Monitoring Well
Water Class
Constituent
GWCL
ugfL Sample Event Sample Result
ug/L
MW-3_Class_III
Thallium 1.00 3rd Qtr 2005 1.60
4thQtr200s 1.14
PtQtr2006 1.13
2nd Qtr 2006 0.99
3rdQtr2006 1.11
4thQtr2006 1.16
Pt Qtr 2007 0.99
Qtr 2007 NA
3fdQtr2007 1.19
4th Qtr 2007 1.15
lstQtr 2008 0.90
Qtr 2008 0.86
3i Qtr 2008 0.85
4th Qtr 2008 0.93
Pt Qtr 2009 0.89
Qtr 2009 0.82
MW-3_Contd
Uranium 15 3ft Qtr 2005 35.90
4thQtr 2005 30.90
PtQtr2006 39.1
Qtr 2006 27.6
3rd Qtr 2006 32.0
4th Qtr 2006 28.2
1tt Qtr 2008 35.6
1tt Qtr 2007 30.2
Qtr 2007 NA
3rd Qtr 2007 17.4
4th Qtr 2007 39.4
Pt Qtr 2008 35.6
Qtr 2008 ND
3rd Qtr 2008 28.5
4thQtr 2008 2Th2
itt Qtr 2009 27.7
Qtr 2009 18.6
Manganese 400 4th Qtr 2005 732
itt Qtr 2006 1640
Qtr 2006 631
3rd Qtr 2006 1370
4th Qtr 2006 682
1tt Qtr 2007 848
Qtr 2007 NA
3rdQtr 2007 199
4thQtr 2007 1950
1tt Qtr 2008 1330
2nt Qtr 2008 810
3rd Qtr 2008 960
4thQtr 2008 813
itt Qtr 2009 468
Qtr 2009 292
Selenium 25 2nd Qtr 2006 25.4
3IdQt 2006 16.8
Monitoring Well
Water Class
Constituent
GWCL
ugfL Sample Event Sample Result
ugIL
4thQtr 2006 27.9
Pt Qtr 2007 20.1
Qtr 2007 NA
3rdQtr2007 33.6
4thQtr 2007 8.9
Pt Qtr 2008 13.8
Qtr 2008 20.1
3rdQtr 2008 19.2
4thQtr 2008 26.5
Pt Qtr 2009 20.7
Qtr 2009 34.2
Tetrahydrofuran 23 2nd Qtr 2006 26
3rd Qtr 2UU6 46
4th Qtr 2006 11
PtQtr2007 11
2nd Qtr 2007 NA
3fdQtr 2007 ND
4thQtr 2007 ND
Pt Qtr 2008 6.5
Qtr 2008 2.0
Tetrahydrofuran 23 Qtr 2008 2.0
Qtr 2008 2.0
Pt Qtr 2009 3.8
Qtr 2009 2.0
MW-S Class II Manganese 200 2nd Qtr 2005 250
4thQtr 2005 280
Qtr 2006 259
Qtr 2006 228
3tdQtr 2006 237
4thQtr 2006 228
PtQtr 2007 281
Qtr 2007 NA
3rdQtr 2007 134
4th Qtr 2007 142
Pt Qtr 2008 203
21t Qtr 2008 258
3rd Qtr 2008 298
4thQtr 2008 230
PQtr 2009 154
Qtr 2009 249
Fluoride 1.00 mg/L Qtr 2005 1.3 mg/L
4th Qtr 2005 1.0 mg/L
Pt Qtr 2006 0.9 mg/L
Qtr 2006 1.0 mg/L
3rd Qtr 2006 0.9 mgfL
4th Qtr 2006 1.1 mg/L
Pt Qtr 2007 1.1 mgIL
Qtr 2007 NA
3rd Qtr 2007 1.2 mg/l
4th Qtr 2007
Pt Qtr 2008
Qtr 2008
.0mgIL
1.0mg/L
0.9mgfL
10
Monitoring Well
Water Class
Constituent
GWCL
ugIL Sample Event Sample Result
ugfL
MW-S Contd Tetrahydrofuran 11.50 Qtr 2008 .0mgfL
4th Qtr 2008 1.0mg/L
1St Qtr 2009 1.0 mg/L
Qtr 2009 1.0
4thQtr 2005 13
151 Qtr 2006 10
2Qtr2006 7.8
3rd Qtr 2006 ND
4th Qtr 2006 ND
151 Qtr 2007 ND
Qtr 2007 NA
3rd Qtr 2007 ND
4thQtr2UU7 IU
18t Qtr 2008 9.2
Qtr 2008 10
3FdQtr 2008 6.6
4th Qtr 2008 8.5
1St Qtr 2009 4.2
2Qtr 2009 11
MW-12_Class_III
Manganese 400 Qtr 2005 420
4thQtr 2005 27
151 Qtr 2006 17
3FdQtr 2006 290
Qtr 2009
4th Qtr 2006 92
1St Qtr 2007 279
Qtr 2007 NA
3rdQtr 2007 57
4thQtr 2007 60
15t Qtr 2008 29
Qtr 2008 32
3tdQtr 2008 19
4thQtr 2008 16
18t Qtr 2009 17
Qtr 2009 33
Uranium 15 Qtr 2005 15.30
4thQtr 2005 16.50
PtQtr 2006 ND
Qtr 2006 20.9
3rd Qtr 2006 23.5
4thQtr 2006 19.8
Pt Qtr 2007 19.4
Qtr 2007 NA
3rd Qtr 2007 8.68
4thQtr 2007 19.2
l5tQtr2008 16.8
2Qtr 2008 16.7
3rd Qtr 2008 17.8
4th Qtr 2008
1t Qtr 2009
Qtr 2009
16.9
18.0
16.7
11
Monitoring Well
Water Class
Constituent
GWCL
ugIL Sample Event Sample Result
ug/L
MW-12 Contd Tetrahydrofuran 23 Qtr 2005 24
4th Qtr 2005 12
Pt Qtr 2006 ND
Qtr 2006 16
3VdQtr 2006 18
4th Qtr 2006 ND
Pt Qtr 2007 38
Qtr 2007 NA
3rd Qtr 2007 ND
4thQtr 2007 ND
Qtr 2008 2.0
2tt1 Qtr 2008 3.0
3rd Qtr 2008 2.0
4th Qtr 2008 2.0
Pt Qtr 2009 3.6
2nt Qtr 2009 3.4
MW-14 Class III Manganese 400 Pt Qtr 2005 1860
June2005 1840
July 2005 2000
Aug 2005 1900
Sept.2005 2110
Oct 2005 1950
Nov 2005 1880
Dec 2005 1960
Jan 2006 2060
Feb 2006 1940
Mar 2006 2070
April 2006 2100
May 2006 2000
June2006 1650
July 2006 1590
Aug 2006 1870
Sept 2006 1.860
Oct 2006 1960
Nov 2006 1790
Dec 2006 1960
Jan 2007 1970
Feb 2007 1940
Mar 2007 1930
April 2007 2020
May 2007 1940
June 2007 NA
July 2007 NA
Aug 2007 2010
Sept 2007 2060
Oct 2007 2120
Nov 2007 2380
Dec 2007 2290
Jan 2008 2200
Feb 2008 2080
Mar 2008 2280
April 2008 2160
12
Monitoring Well
Water Class
Constituent
GWCL
ugtL Sample Event Sample Result
ugIL
MW-14 Contd Manganese 400 May 2008 2420
June2008 2290
July2008 2150
Aug 2008 2020
Sept 2008 2030
Oct.2008 2110
Nov 2008 2150
Dec 2008 2300
Jan 2009 2060
Feb 2009 2190
Mar.2009 2150
April 2009 2380
May 2009 2170
June 2009 1940
Uranium 15 Pt Qtr 2005 65.1
June2005 58.9
July2005 65.5
Aug 2005 66.5
Sept 2005 67.5
Oct 2005 70.1
Nov 2005 69.7
Dec 2005 67.6
Jan 2006 74.8
Feb 2006 69.2
Mar 2006 69.4
April 2006 64.0
May2006 70.3
June2006 69.2
July 2006 71.8
Aug 2006 64.7
Sept 2006 69.0
Oct 2006 66.4
Nov 2006 65.5
Dec 2006 68.4
Jan 2007 24.9
Feb 2007 43.8
Mar 2007 42.8
April 2007 18.8
May 2007 62.4
June 2007 NA
July 2007 NA
August 2007 ND
September 2007 70.5
October 2007 68.6
November 2007 61.6
December 2007 60.7
January 2008 65.1
February 2008 64.1
March 2008 ND
April2008 61.8
May2008 62.6
June2008 61.3
13
Monitoring Well
Water Class
Constituent
GWCL
ugfL Sample Event Sample Result
ug/L
MW-14 Contd Uranium 15 July 2008 64.8
Aug 2008 62.4
Sept 2008 63.0
Oct 2008 65.8
Nov 2008 63.4
Dec 2008 48.3
Jan 2009 68.9
Feb 2009 60.5
Mar 2009 57.4
April 2009 62.0
May 2009 60.5
June 2009 63.4
MW-is Class III Selenium 25 211 Qtr 2005 79
4th Qtr 2005 92.5
Pt Qtr 2006 102
Qtr 2006 117
Qtr 2006 112
4thQtr2006 112
Qtr 2007 89.6
2nd Qtr 2007 NA
3rd Qtr 2007 94
4th Qtr 2007 94
PQ1r2008 113
Qtr 2008 106
3rd Qt 2008 118
4th Qtr 2008 111
PQtr2009 110
Qtr 2009 110
Uranium 15 2nd Qtr 2005 45.3
4th Qtr 2005 47.7
Qtr 2006 50.4
Qtr 2006 47.8
3rd Qtr 2006 50.1
4th Qtr 2006 51.6
Qtr 2007 46.5
Qtr 2007 NA
3rdQtr 2007 28.6
4thQtr 2007 51.0
1Qtr 2008 48.3
Qtr 2008 43.9
3rdQtr 2008 45.7
4th Qtr 2008 47.0
ltQtr 2009 45.7
Qtr 2009 45.6
MW-i7_Class_III
Uranium 15 Qtr 2005 23.4
4th Qtr 2005 31.2
1t Qtr 2006 28.2
2nd Qtr 2006 32.2
3rd Qtr 2006 30.6
4th Qtr 2006 30.2
1st Qtr 2007 23.4
14
Monitoring Well
Water Class
Constituent
GWCL
Sample EventugIL
Sample Result
ugfL
MW-17 Contd Uranium 15 2x Qtr 2007 18.2
3Id Qtr 2007 20.1
4th Qt 2007 31.0
Pt Qtr 2008 28.3
Qtr 2008 29.4
3fd Qtr 2008 28.9
4th Qtr 2008 26.0
1tt Qtr 2009 28.7
Qtr 2009 26.4
Thallium 1.0 itt Qtr 2009 0.57
Qtr 2009 0.69
MW-18 Class II Thallium 0.5 Qtr 2005 1.0
4th Qtr 2005 0.95
itt Qtr 2006 1.46
Qtr 2006 1.3
3tdQt 2006 0.83
4thQfr2006 1.01
Pt Qtr 2007 1.85
Qtr 2007 NA
3rd Qtr 2007 0.96
4thQtr 2007 0.89
PtQtr2008 1.11
2nd Qtr 2008 1.34
3rd Qtr 2008 1.33
4th Qtr 2008 1.43
1tt Qtr 2009 1.53
Qtr 2009 2.5
MW-18 Class II Uranium 7.5 Qtr 2005 39
4th Qtr 2005 39
PtQtr2006 42.6
2MQtr 2006 32.2
3rd Qtr 2006 39.6
4th Qtr 2006 42.2
Pt Qtr 2007 46.9
Qtr 2007 NA
3tdQtr 2007 36.5
4thQtr 2007 39.2
itt Qtr 2008 42.4
Qtr 2008 44.8
3rd Qtr 2008 41.4
4th Qtr 2008 41.0
PtQtr 2009 39.4
2Qtr2009 41.2
Manganese 200 1tt Qtr 2008 154
Qtr 2008 119
3rd Qtr 2008 136
4th Qtr 2008 125
PtQtr2009 121
Qtr 2009 72
MW-19 Class II Fluoride 1.0 mg 4th Qtr 2005 1.1 mgIL
Qtr 2006 1.1 mgfL
Qtr 2006 1.1 mg/L
15
Monitoring Well
Water Class
Constituent
GWCL
Sample Eventug/L
Sample Result
ugfL
MW-19 Contd Fluoride 1.0 mgIL 4th Qtr 2006 1.3 mg/L
Pt Qtr 2007 1.4 mg/L
2x Qtr 2007 NA
3rd Qtr 2007 1.3mg/L
4th Qtr 2007 1.1 mg/L
Qtr 2008 1.1mg/L
2nd Qtr 2008 1.1 mgfL
3d Qtr 2008 1.1 mg/L
4th Qtr 2008 1.1 mg/L
itt Qtr 2009 1.1mgfL
Qtr 2009 .0mg/L
Selenium 12.5 211 Qtr 2005 18
4th Qtr 2005 12.3
PtQtr2006 14.3
2nt Qtr 2006 12.0
3rd Qtr 2006 12.0
4thQtr2006 11.2
lttQtr2007 11.1
2h1 Qtr 2007 NA
3rdQtr 2007 11.9
4thQtr 2007 10.8
itt Qtr 2008 10.6
2Qtr 2008 10.2
3rd Qtr 2008 9.2
4th Qtr 2008 9.9
1Qtr 2009 9.6
Qtr 2009 10.7
Thallium 0.5 4th Qtr 2005 0.57
ltQtr 2006 ND
Qtr 2006 0.7
3Qtr 2006 0.55
4th Qtr 2006 0.68
itt Qtr 2007 ND
Qtr 2007 NA
3rd Qtr 2007 0.53
4thQtr 2007 0.52
itt Qtr 2008 0.52
Qtr 2008 ND
Qtr 2008 ND
4th Qtr 2008 ND
ltQtr 2009 ND
Qtr 2009 ND
Uranium 7.5 Qtr 2005 11.6
4thQtr200S 11.3
ltQtr2006 12.8
2Qtr 2006 11.5
3rdQtr 2006 8.52
4thQtr 2006 10.1
1tt Qtr 2007 9.37
2nd Qtr 2007 NA
3rd Qtr 2007 7.76
4th Qtr 2007 7.53
16
Monitoring Well
Water Class
Constituent
GWCL
ugIL Sample Event Sample Result
ugIL
MW-19 Contd Uranium 7.5 Pt Qtr 2008 7.32
2nd Qtr 2008 6.76
3rclQtr 2008 6.8
4thQtr 2008 6.51
Qtr 2009 6.52
Qtr 2009 6.76
Nitrate-Nitrite as 2.5 Pt Qtr 2009 2.4
Qtr 2009 2.4
MW-26_Class_II
Manganese 400 itt Qtr 2005 1350
June 2005 956
July2005 1100
Aug 2005 1430
Sept 2005 1160
Oct 2005 1410
Nov 2005 949
Dec 2005 1030
Jan 2006 951
Feb 2006 874
Mar 2006 1210
April 2006 1100
May2006 1280
June 2006 1300
July 2006 95
Aug 2006 902
Sept 2006 1330
Oct 2006 1610
Nov 2006 1500
Dec 2006 1080
Jan 2007 769
Feb.2007 979
Mar.2007 1130
April 2007 1410
May 2007 910
June 2007 1230
July2007 1280
Aug 2007 728
Sept 2007 NS
Oct 2007 1190
Nov.2007 1150
Dec 2007 1410
January 2008 853
February 2008 1330
March 2008 1390
April 2008 1010
May2008 1170
June2008 1130
July2008 1110
Aug.2008 1180
Sept.2008 1140
Oct 2008 1550
Nov 2008 1260
17
Monitoring Well
Water Class
Constituent
GWCL
ug/L Sample Event Sample Result
ugfL
MW-26 Contd Manganese 400 Dec 2008 1120
Jan 2009 1040
Feb.2009 1370
Mar 2009 1600
April 2009 1260
May 2009 1120
June 2009 1190
Uranium 15 Vt Qtr 2005 22.4
June 2005 9.5
July 2005 12.6
Aug 2005 26.0
Sept 2005 17.4
Oct 2005 22.7
Nov 2005 12.1
Dec 2005 12.3
_____________________Jan 2006 10.7
Feb 2006 9.9
Mar 2006 17.9
April 2006 14
May 2006 2.5
June 2006 24.6
July2006 17.6
Aug 2006 10.5
Sept 2006 23.0
Oct 2006 34.7
Nov 2006 32.6
Dec 2006 20.9
Jan 2007 22.6
Feb.2007 44.2
Mar 2007 42.8
April 2007 36.4
May 2007 119
June 2007 24.5
July2007 38.6
August 2007 21.2
September 2007 NS
October 2007 47.0
November 2007 42.0
December 2007 47.6
January 2008 20.1
February 2008 59.2
March 2008 46.3
April 2008 17.2
May 2008 20.7
June2008 21.7
July 2008 23.4
Aug 2008 27.1
Sept 2008 29.4
Oct 2008 60.4
Nov 2008 54.0
Dec 2008 62.1
Jan 2009 52.6
18
Monitoring Well
Water Class
Constituent
GWCL
ugfL
Sample Result
Sample Event ugIL
MW-26 Contd Uranium 15 Feb 2009 43.0
Mar 2009 58.3
April 2009 27.4
May 2009 32.1
June 2009 54.3
Chloroform 35 1t Qtr 2005 230
June 2005 430
July 2005 260
Aug 2005 780
Sept.2005 810
Oct 2005 960
Nov 2005 100
Dec 2005 200
Jan 2006 300
Feb 2006 860
Mar 2006 200
April 2006 200
May2006 1100
June 2006 260
July2006 7800
Aug 2006 980
Sept 2006 1200
Oct 2006 1400
Nov 2006 950
Dec.2006 1100
Jan 2007 5700
Feb.2007 4400
Mar 2007 1600
April 2007 2100
May 2007 2400
June 2007 660
July2007 1100
August 2007 920
September 2007 NS
October 2007 820
November 2007 1400
December 2007 1400
January 2008 830
February 2008 580
March 2008 1300
April 2008 1600
May2008 1200
June 2008 2000
July 2008 1600
Aug 2008 1300
Sept 2008 460
Oct 2008 630
Nov 2008 950
Dec 2008 1300
Jan 2009 1200
Feb 2009 1600
Mar 2009 1200
19
Monitoring Well
Water Class
Constituent
GWCL
ugIL
Sample Result
Sample Event ugIL
MW-26 Contd Chloroform 35 April 2009 820
May 2009 2600
June 2009 1400
Dichloromethane 2.5 June 2005 5.4
Aug.2005 11.0
Sept 2005 5.9
Oct 2005 9.8
Nov 2005 7.6
Dec 2005 12
Jan 2006 6.9
Feb 2006 4.8
Mar 2006 4.6
April 2006 14
May 2006 11
June 2006 2.5
July 2006 ND
Aug 2006 12
Sept 2006 25
Oct 2006 31
Nov 2006 15
Dec 2006 2.6
Jan 2007 ND
Feb.2007 25
Mar 2007 26
April 2007 33
May 2007 28
June 2007 37
July 2007 14
August 2007 9.0
September 2007 NS
October 2007 1.2
November 2007 18
December 2007 22
January 2008 15
February 2008 15
March 2008 66
April 2008 47
May2008 33
June2008 110
July2008 82
Aug 2008 84
Sept.2008 11
Oct 2008 9.4
Nov 2008 17
Dec 2008 60
Jan 2009 69
Feb 2009 89
Mar 2009 37
April 2009 33
May 2009 47
June 2009 54
Tetrahydrofuran 23 Qtr 2005 55
20
Monitoring Well
Water Class
Constituent
GWCL
ugIL
Sample Result
Sample Event
ugIL
MW-26 Contd Tetrahydrofuran 23 Jan 2006 ND
Feb 2006 ND
Mar 2006 ND
April 2006 ND
May 2006 ND
June2006 ND
July 2006 ND
Aug 2006 ND
Sept 2006 ND
Oct 2006 ND
Nov 2006 ND
Dec 2006 ND
Jan 2007 ND
Feb.2007 ND
Mar 2007 ND
April 2007 ND
May 2007 ND
June 2007 ND
July 2007 ND
August 2007 ND
September 2007 NS
October 2007 ND
November 2007 ND
December 2007 ND
MW-32 Cadmium 2.5 Pt Qtr 2005 23.8
June2005 1.7
July 2005 2.1
Aug 2005 2.75
Sept 2005 2.95
Oct 2005 2.16
Nov 2005 2.07
Dec 2005 1.0
Jan.2006 1.14
Feb 2006 2.32
Mar 2006 2.58
April 2006 2.96
May2006 1.84
June2006 0.8
July 2006 3.0
Aug 2006 1.44
Sept 2006 0.96
Oct 2006 ND
Nov 2006 0.9
Dec 2006 1.44
Jan 2007 3.0
Feb.2007 ND
Mar 2007 2.42
April 2007 2.24
May 2007 6.18
June 2007 ND
July 2007 2.83
August 2007 1.82
21
Monitoring Well
Water Class
Constituent
GWCL
ug/L Sample Event Sample Result
ugIL
MW-32 Contd Cadmium 2.5 September 2007 1.18
October 2007 1.20
November 2007 1.47
December 2007 1.81
January 2008 1.32
February 2008 ND
March 2008 1.90
April 2008 3.0
May 2008 2.08
June2008 2.21
July 2008 2.4
Aug 2008 2.77
Sept 2008 2.45
Oct 2008 2.53
Nov 2008 2.86
Dec 2008 2.61
Jan 2009 2.64
Feb 2009 2.98
Mar 2009 3.0
April 2009 2.9
May 2009 2.98
June 2009 2.6
Manganese 400 Pt Qtr 2005 3740
June 2005 4220
July 2005 4720
Aug 2005 4670
Sept 2005 4580
Oct 2005 4590
Nov 2005 4530
Dec 2005 4340
Jan 2006 5090
Feb 2006 4160
Mar 2006 5.090
April 2006 5070
May2006 4840
June2006 4680
July 2006 4540
Aug.2006 5160
Sept 2006 4690
Oct 2006 4790
Nov 2006 4830
Dec 2006 4920
Jan 2007 5040
Feb.2007 4940
Mar 2007 4920
April 2007 5450
May 2007 4920
June 2007 5470
July 2007 5490
August 2007 4820
September 2007 4790
October 2007 5170
22
Monitoring Well
Water Class
Constituent
GWCL
ugIL Sample Event Sample Result
ugfL
MW-32 Contd Manganese 400 November 2007 5583
December 2007 5050
January 2008 4950
February 2008 5010
March 2008 5660
April 2008 5500
May2008 5810
June 2008 5400
July2008 5160
Aug 2008 5240
Sept 2008 5130
Oct 2008 5550
Nov 2008 5390
Dec 2008 5540
Jan 2009 4850
Feb 2009 5170
Mar 2009 5140
April 2009 6180
May 2009 4640
June 2009 5120
Nickel 50 1st Qtr 2005 71.0
June2005 54.0
July 2005 63.0
Aug 2005 64.0
Sept 2005 67.0
Oct 2005 63.0
Nov 2005 62.0
Dec.2005 51.0
Jan 2006 69.0
Feb 2006 54.0
Mar 2006 68.0
April 2006 70.0
May 2006 64.0
June 2006 52
July 2006 74
Aug 2006 59
Sept 2006 53
Oct 2006 12
Nov 2006 56
Dec 2006 62
Jan 2007 59
Feb.2007 51
Mar 2007 74
April 2007 64
May 2007 127
June 2007 94
July 2007 85
August 2007 65
September 2007 62
October 2007 67
November 2007 57
December 2007 66
23
Monitoring Well
Water Class
Constituent
GWCL
ug/L Sample Event Sample Result
ugIL
MW-32 Coatd Nickel 50 January 2008 62
February 2008 59
March 2008 59
April 2008 61
May 2008 64
June 2008 62
July 2008 65
Aug 2008 66
Sept 2008 60
Oct 2008 62
Nov 2008 66
Dec 2008 59
Jan.2009 58
Feb 2009 63
Mar 2009 64
April 2009 62
May 2009 57
June 2009 59
Iron Jan 2009 9130
Feb 2009 9180
Mar 2009 8450
Gross Alpha Jan 2009 5.2 1-1.0
Feb 2009 5.5 1-0.7
Mar 2009 5.0 1-0.7
April 2009 2.0 1-0.8
May 2009 1.6 1-0.5
June 2009 3.2-0.8
2.5 Depth To Groundwater Readings And Water Table Contour Map
listing of groundwater level readings for the Quarter shown as depth to groundwater in
feet is included under Tab
Also included under Tab is water table contour map which provides the location and
identity of all of the wells and piezometers listed in items 2.1b above for which depth to
groundwater is recorded The groundwater elevation at each well and piezometer
measured in feet above mean sea level and isocontour lines to delineate groundwater
flow directions observed during the Quarters sampling event is displayed on the map
2.6 Quality Assurance Evaluation And Data Validation
Quality assurance evaluation and data validation procedures in effect at the time of
sampling were followed These involve three basic types of evaluations field QC
checks Analytical Laboratory QA checks and checks performed by DUSA personnel as
described below
24
2.6.1 Field OC Checks
The following QC samples were generated by Mill personnel and submitted to the
Analytical Laboratory in order to assess the quality of data resulting from the field
sampling program
April Monthly Accelerated Sampling
-One duplicate sample of MW-32 MW-65 collected 4-22-09
-One field blank MW-60 collected 4-22-09
-One trip blank provided by the Analytical Laboratory and sent with the samples
received by the Analytical Laboratory on 4-24-09
June Monthly Accelerated Sampling
-One duplicate sample of MW-32 MW-65 collected 6-17-09
-One field blank MW-60 collected 6-17-09
-One trip blank provided by the Analytical Laboratory and sent with the samples
received by the Analytical Laboratory on 6-19-09
May Quarterly/Accelerated Sampling
Two duplicate samples MW-32 MW-65 collected 5-13-09 MW-18
MW-70 collected 5-27-09
One field blank MW-60 collected 5-18-09
Three trip blanks provided by the Analytical Laboratory and sent with the
samples received by the Analytical Laboratory on 5-14 5-185-29 and 6-2-09
These QC samples were sent blind to the Analytical Laboratory and analyzed for the
same parameters as permit-required samples
2.6.2 Analytical Laboratory QA/QC Procedures
The Analytical Laboratory has provided summary reports of the analytical quality
control/quality assurance QAJQC measurements necessary to maintain conformance
with NELAC certification and reporting protocol The Analytical Laboratory QA/QC
Summary Reports including copies of the Mills Chain of Custody and Analytical
Request Record forms for each set of Analytical Results follow the analytical results
under Tabs to
2.6.3 Mill QA Manager Review
The Mill QA Manager which for the purposes of this Report was DUSAs Manager of
Environmental Affairs performed three types of reviews determination of whether
Mill sampling personnel followed Mill sampling procedures review of the results from
the Field QC Checks and review of the Analytical Laboratory QAJQC analysis The
results of the QA Managers review are discussed below
25
Adherence to Mill Sampling SOPs
On review of adherence by Mill personnel to the existing sampling standard
operating procedures SOPs the QA Manager observed that QA/QC requirements
established in the Groundwater Monitoring Quality Assurance Plan were being
adhered to and that the SOPs were implemented
Results from field QC checks
April Sampling
The results of duplicate QC checks for the January sampling indicated that the
duplicated samples were within the Relative Percent Difference goal of 20%see
Table The information from the Laboratory QAJQC Summary Report indicates
that RPD and recovery data at the Laboratory were within acceptable All samples
were received within acceptable temperature specification and holding time
requirements were adhered to
Table 4-QC Evaluation January Sampling Event
Constituent
Duplicate Evaluation
Mw-32 Dup
MW-65
RPD
Cadmium 2.9 2.9
Iron 8250 8040 2.58
Manganese 6180 6320 -2.24
Nickel 62 60 3.28
Gross Alpha 2.0 1-0.8 2.6 0.8
ii June Sampling
The results of duplicate QC checks for the March sampling indicated that the duplicated
samples were within the Relative Percent Difference goal of 20%see Table The
information from the Laboratory QA/QC Summary Report indicates that RPD and
recovery data at the Laboratory were within acceptable limits as well There were no
qualifications attached to these data by the laboratory All samples were received within
acceptable temperature specification and holding time requirements were adhered to The
DI Blank showed trace concentrations of Chloroform
Table 5-QC Evaluation March Sampling Event
Constituent
Duplicate Evaluation
MW-32 Dup
Mw-65
RPD
Cadmium 2.6 2.6
Iron 8050 7970 1.25
Manganese 5120 5090 5.94
Nickel 59 60 1.68
Gross Alpha 3.2 1-0.8 2.9 0.8
26
iii May Quarterly/Accelerated Sampling
The results of duplicate QC checks for the quarterly sampling indicated that with the
exception of one anomaly Zn in MW-18 vs MW-70 the Relative Percent Difference
RPD values were within the 20%acceptance limit The Zinc value in MW-79 was
less than the detection limit and the MW-i Zinc was above the detection limit of 10
ppb at 27 ppb The duplicate RPD values continue as marked improvement over
previous periods during 2008 i.e Quarter data indicated ii instances where the
RPD value exceeded 20%In addition all sample sets sent to Energy Labs and
AWAL were received within the current 40 limit for acceptance and holding times
were adhered to It was noted that samples 3A i7 18 19 23 24 and 27
required re-sampling because the UPS DIA terminal location had opened the coolers
thus compromising the samples Denison continues to investigate the trace
chloroform found in DI Blanks albeit DI rinse water is no longer used in the
Groundwater Sampling Program as dedicated pumps have been in use and equipment
rinsing between samplings is no longer needed All trip blanks indicate less than
detect for chloroform thus confirming that field activities do not contribute to
chloroform in the samples collected
27
Table 6-QC Evaluation ft Quarter 2009 Sampling Event
Constituent MW-32 MW-65 %RPD MW-18 MW-70 %RPD
Carbonate ND ND 0.0 ND ND 0.0
Bicarbonate 420 423 -0.71 449 450 -0.22
Calcium 447 459 2.65 543 560 -3.08
Chloride 32 30 6.45 68 68 0.0
Fluoride 0.2 0.2 0.0 0.2 0.2 0.0
Magnesium 206 210 -1.92 129 132 -2.23
Nitrogen-Ammonia 0.72 0.7 0.06 ND ND 0.0
Nitrogen-Nitrate ND ND 0.0 ND ND 0.0
Potassium 12.5 12.9 -3.15 8.7 10.4 -17.8
Sodium 215 220 -2.3 188 194 -3.06
Sulfate 2440 2440 0.0 1930 2020 -4.56
Lab pH 6.95 7.06 -1.5 6.79 6.77 -0.29
TDS 3840 3850 -0.26 3200 3230 -0.93
Arsenic ND ND 0.0 ND ND 0.0
Beryllium ND ND 0.0 ND ND 0.0
Cadmium 2.98 3.02 1.33 ND ND 0.0
Chromium ND ND 0.0 ND ND 0.0
Cobalt 46 46 0.0 ND ND 0.0
Copper ND ND 0.0 ND ND 0.0
Iron 7600 7690 -1.17 236 236 0.0
Lead ND ND 0.0 ND ND 0.0
Manganese 4640 4710 -1.49 72 75 -4.08
Mercury ND ND 0.0 ND ND 0.0
Molybdenum 10 10 0.0 ND ND 0.0
Nickel 57 57 0.0 ND ND 0.0
Selenium ND ND 0.0 ND ND 0.0
Silver ND ND 0.0 ND ND 0.0
Thallium ND ND 0.0 2.5 2.5 0.0
Tin ND ND 0.0 ND ND 0.0
Uranium 2.54 2.57 -1.17 41.2 46.4 9.58
Vanadium ND ND 0.0 ND ND 0.0
Zinc 129 130 0.77-27 10 NA 20%
Gross Alpha 1.6 1-0.5 2.0 1-0.6 1.7 1-0.7 1.6 1-0.7
Acetone ND ND 0.0 ND ND 0.0
Benzene ND ND 0.0 ND ND 0.0
Carbon tetrachloride ND ND 0.0 ND ND 0.0
Chloroform ND ND 0.0 ND ND 0.0
Chloromethane ND ND 0.0 ND ND 0.0
MEK ND ND 0.0 ND ND 0.0
Methylene Chloride ND ND 0.0 ND ND 0.0
Naphthalene ND ND 0.0 ND ND 0.0
Tetrahydrofuran 0.0 0.0
Toluene ND ND 0.0 ND ND 0.0
Xylenes ND ND 0.0 ND ND 0.0
RPD Equation for Gross Alpha Satisfied if differential analysis of reported values and counting error is
RPD not calculable due to one value reported at less than the detection limit
Review ofAnalytical Laboratory QA/QC Analysis
The QA Manager reviewed the Analytical Laboratorys QA/QC Summary Reports and
made the following conclusions
28
Check samples were analyzed for all methods used in analyzing the
groundwater samples These methods were
Table Analytical Methods Utilized
Parameter Method
Carbonate as C03 Bicarbonate as HCO3 A2320
Calcium magnesium potassium sodium iron E200.7
Chloride A4500-C1
Fluoride A4500-F
Nitrogen Ammonia as A4500-NH3
Nitrogen Nitrate Nitrite as E353.2
Sulfate A4500-504
TDS A2540
Metals other than iron E200.8
Gross Alpha E900
VOCs 5W8260B
ii The check samples included at least the following method blank laboratory
control spike matrix spike and matrix spike duplicate or the equivalent
where applicable In this context it should be noted that
Laboratory fortified blanks are equivalent to laboratory control spikes
laboratory reagent blanks are equivalent to method blanks post
digestion spikes are equivalent to matrix spikes and post digestion
spike duplicates are equivalent to matrix spike duplicates and
For method E900.1 used to determine gross alpha sample duplicate
was used instead of matrix spike duplicate
iii All qualifiers and the corresponding explanations reported
in the QAIQC
Summary Reports for any of the check samples for any of the analytical
methods were reviewed by the QA Manager
With regard to laboratory qualifiers there were some instances where
reporting limit RL was increased due to matrix interference however in these
cases the reported value was well above the re-established RL
vi The information from the Laboratory QAIQC Summary Reports indicate that
RPD at the Laboratory were primarliy within acceptable limits However there
were instances where spike recovery and RPD data fell slightly outside of the
stated limits
vii The DI Blank showed trace concentrations of Chloroform albeit DI water is no
longer used in the Groundwater monitoring program since dedicated pumps have
been installed
29
Corrective Actions
De-ionized Water Trace Contaminants
During the 3M Quarter report period it was noted that field blank de-ionized water
continued to yield trace volatile organic presence i.e Chloroform This matter
was further investigated by the QA manager and corrective measures included
confirmation that purchased de-ionized water had in fact been used for the
field blank and two sets of purchased de-ionized waters samples were
prepared and duplicate sets were sent to each of two contract laboratories
Energy Lab and AWAL Both Labs continued to report the presence of low
concentration Chloroform in all of the purchased water samples e.g
approximately 30 pjb Concurrently these low concentrations of Chloroform
were found in the 4-Quarter 2009 field blanks as well During the QA review
for the preparation of the 4th Quarter Report it was discovered that in fact what
was purchased is the resin used to treat the water and not the water itself
Accordingly samples of pretreated water treated water and the field blanks
themselves were planned for analysis in order to further isolate the cause of this
low level contaminant source Field blanks were collected during the Quarter
and the matter was discussed at length with onsite laboratory personnel however
the samplings for pre and post treatment DI water have not yet been received
The matter of Chloroform presence in DI water is no longer an issue for the
Groundwater program as the site uses dedicated pumps for Groundwater
sampling and DI water is no longer used to clean Groundwater sampling
equipment However the matter continues to be investigated as DI water may be
used in other programs
Contemporaneous Water Level Measurements
Water level measurements were not taken contemporaneously within 5-day
period according to the QAP for the first Quarter root cause analysis of this
matter was reported to the Executive Secretary on May 22 2009 This matter has
been addressed and all water levels were recorded on the same day for this
reporting period
30
2.7 Electronic Data Files and Format
DUSA has provided to the Executive Secretary an electronic copy of all
laboratory results for groundwater quality monitoring conducted during the
Quarter in Comma Separated Values CSV copy of the transmittal e-mail is
included under Tab
3.0 SIGNATURE AND CERTIFICATION
This document was prepared by Denison Mines USA Corp on August 31 2009
DENISON MINES USA CORPB/
David Frydenlund
Vice President Regulatory Affairs and Counsel
31
Certification
certify under penalty of law that this document and all attachments were
prepared under my direction or supervision in accordance with system designed to
assure that qualified personnel properly gather and evaluate the information submitted
Based on my inquiry of the person or persons who manage the system or those persons
directly responsible for gathering the information the information submitted is to the
best of my knowledge and belief true accurate and complete am aware that there are
significant penalties for submitting false information including the possibility of fine and
imprisonment knowing violations
rydenlund
Vice President Regulatory Affairs and Counsel
Denison Mines USA Corp
32
Attachment
SCALE IN FEET
EXPLANATION
perched monitoring well
temporary perched monitoring well
perched plezemeter
perched wnnitnring well
metalled Apel 2enh
tewperery perched woniterlng
well mactaIled April 2cch
tempnrery perchhd monitoring well
metalled May 20h7 lncatmnnn appreemmele
AND PERCHED WELL LOCATIONS
WHITE MESA SITE
T38S
3000
wildlife pond
//
//
//
//
//
HYDRO
GEO
CHEM INC
Attachment
ATTAVIIJIMENfl
WJHIIITE MESA UIL4NJIUM MuLL
FKELII DAm WORUSIBIIEfl FOR GROUND WATER
Description ofSamplingEventk cL nauas s2tr
..Sampler
Location well name f4%j Name alid initials 4oLt.rn 14
Date and Time for Purging -og and Sampling if different_p
Welt Purging Equip U Ljiurnp or_bailer Well Eump if other than Berthet fl
Sampling Event aJwr GnnabJoAer Preir Well Sampled in Sampling Event Mt4iR
pFlBufferl.O i.O pflBuffer4.O 4.0
Specific Conductajce uMH /cm WqII Ptpth
Depth to Water Before Fuging 7L 3C Casing Volume Well ju .65Th
Well 4L .361k
condttcwnce avg p0 of $lter avg
Welt Water Temp avg P4 E4 RedoxPotentiaf Eh ILl Turbidity
Weather Coat Wr4l CA1 Extl AMb Temp.prior to sampling event f-Tet
iinie 45 Cal Purged Lb Tffnei fliS Cml Purged
Conclacauce $3L4 CQncluctance
PH .oq p0 7O9
Tern nnte
Rednx Potential Ehi
dfl
MW Grourttlwater Discharge Pennit
Groundwater Monitoring
Quality Assurance Han QAP
Date 2.25.07 Revision
Page 40 of 41
Temperature
Redox Potential Eli
Turbidity
Temperature Q4
Redox Potential Eli
Turbidity_______________
iine t3j6 Gal Purgct4 .73
Conductance 4t
nil
Time JIO GaLPurged
Conductance iPSO
Temperature
it 7.ig44
Redox Potential Eli kft
Mill Groundwater Discharge Permit Date 11.1756 Revision
Groundwater Monitoring
Quality MsurancePlan QAP Page 41 of4l
Volume of Water Purged
.J .%
Rate Calculation
TuSlity TT
Flow Rate in gprn Time to evacuate two casing volumes 2Vt2V/Q Ji
Number of casing vohunes evacvated if other than two_AI/1
If well evacuated to dryness numberof gallons eiracudte.d_A/fM
Name of Certified Analytical Labonitoiy it Other tkan Energy Labs Amertcq W4 Lotb
..4 JOC.b
jype of Suanii
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SpecifyType and
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Comments Aeriscc JL Qa4
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Mill Gwmidwater Discharge PeSt
Groundwater Monitoring
Quality Msnrance Plan QAP
Time i34S Gal PurgeLX
Conductance 4p
PH-
Date 2.25.07 1ievisio1E
Page 40 of4f
WH1ITIE MESA UEANMJM ML
MELD DATA WOE1LCSfl FOE GROUPD WATIEIR
Description ofsamplingBventrck rrau4 tiocutr
Sawpler
Location well name NathS nih WIt ati JAinse 4OLLr rs rf t.14
Date and Time for Purging .S-fl and Sampling if different AJ/I
Well Pinging Equip Used Lpuffip or Well Pump if other than Beithet
Sampling Event Well SaJzed in Sampling Event JftJ 1K
pHBufferl.0 to pHfluffer4i 40
specific Condu4se fqqSJcin Well Depth
Depth to Wa er3eforiiPuging c7.7k Casing VolumeV Well N/h .653k
Well t.fj .36Th
Condtictastce atg pH oWaier avg
Well Water Temp avg 14 .TV7 $1 2ZfLTurbidity
Weather Cond Qutrt rsk Extl AUth Temp.pdpr td sampling event 230
Time 15 Cal Purged Tune fl.s5 9a1 urge 13
Conductance Wi Conductance
pH 7.I pa .-7LS
Temperature 4IL Temperature_1147C
..
RedoxPotentialEh D.C fledox Potential Eli 27
Turbidity Turbidity
Redox Potential Eli 4cC
Time 1415 Gal.Purged
conductance kL
pH 7.4
Temljr.atlpt t3O
Redox Potential Eli .i
Qrotmdwater Discharge Permit
CjnthtoterMethtoring
Quality Msurance Plan QAP
Date 11.17.06 Revision
Page 41 of 41
Thrbidity
Volume of Water Purged
jug Rate Calculation
rnnimnntq Em IJJS fl ILl OrtW\4 Zr tsrnPIOflAAntr%A.JAflUFfl
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Plow Rate in gpin Time to evacuate two casing volumes ZV
.33 T2VIQ jil PVn
Number of cas ng volumes evacuated if other than two___________________________
If well evacuated to dryness number-of gallons ei.racuatdd N/I
Name of Certified Analytical Laboratory ifOther ti Energy Labs .Anicmr-ne
--
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rgiei11
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llea eta1s
All OutS Nba-
lN
LI
..L j./
34tEznI
loOnil
250Sf
250 ml
YQ
Ic kP
30
LCiL tN
.112S04
NilrServitiv Mded
Radiolglcs
GrossAlpba
Other specify
fctw4 1lo%aAks
09
1000ml
Sample volume
lS
49
1L2SO4
If preservative is used
Specify Type
Quantity of Preservative
Mill Groundwater DLschaie PeIMuE Date 225.07 Revision
Groundwater Monitoring
Quality Msarance Plan QAP Page 40 of4I
4flACKIIIkIURNfl
WWJIFIE B41ISA UIRAN1IIIJM MiLL
FRflffD DATA WORKSJHIIET FOR GROUND WATJR
Description ofsamplngEventrX Cnu4.r ainw oªtn
Location well name Mt3 Name afid ithtialsLjj.R I6LI.tfl$iII3
Date and Time for Purging _Jg oq and Sampling if different sJ/ft
Well Purging Equip Used Lpunip or_bailer Well Pump if other than Rennet
Sampling Event t.Z4tt Prey Well Sampled in Sampling Event t191
pflBuffer7 to pHBuffer4.0 4.0
Specific Condute I11 qIVIHOSjcm Well.Deptli
Depth to WaterEeforePucging Casing Volume WellJt.L.653h
Well An 367
conduetance atg 3$5O Water avg
Well Water Temp avg1 Vi R.kM Potenttl l1 343 Turbidity
Weather bud nrtc.S Extl Auth Temp.prioF tc ampling event
Tune JE Cal Purged Trnie ISt4S Gal Purged
Condticiance____________________Cqnduct4nce
_________________C.90
Temperature Temperature P-t.io
Redox Potential Eli Redox Potential Eli Ui
Turbidity________________Turbidity
_________________Time Us3 Gal.Purged 9.1 MS
________________Conductance 3171
_________________p0
Temperature 14 .3.6
________________RedoxPotentialEh
____________
TimeJLbt Gal Purged ILc
Condttctance573
pH
Temperature i.i
Redox Potential Eli $bC3
MIII Iround Water Discharge Permit Date IL 17.06 Revision
Groundwater Monitoring
Quality Assurance Plan QAP
r.ar5hr TOthiditv
Page 41 of 41
Volume of Water Purged
gpgRnte Calculation
Q7R
Plow Rate Qin gpm Time to evacuate two casing volumes 2VT2wQjSAk
Number of casing volumes evacuaS if dther than two_.
If welt evacuated to dryness number 41 gallons eiracuMi_
Name of Certified Analytical Laboratozy if Other Than BtiØrgy Labs mtc4tcn \4 L0b
JoC.t
type of Smnipk ISle
Ta1
.frgdej
$iAiiileViIume
fSfftt
thIfti as specifiedMi Leircie
Presenative Added
LcirclÆ
VOCs tN ..t 11
Nutrients
HeavyMetals
AlE Othei Non-
lUOnd
250W
IfO4
END3
NPteiØrviveAddcd
Rad.iblogics
GrossApba 1000ml
V.-
H2SO4.-
Other specify
tcaceat -tjonCAcs
Sample volume cv
if preservative is used
Specify Type and
Quantity of Preservative
nts A1.L dL isa -c j-hthL
nannknn sitn V..ea.fl.a anfl OnrnA i.1 4cr 1.5
Rs4 JIkSj itTh 3Cii
---.-L4 c4 lWfl
j.pbrjO.-5 CAc.r
i.ita4ltt Urrtts4 bJ/soij ba5 cptk1\
Date 225.07 Revision
Page 4Oof 411
p..
Tenlperatwe .1LL1
Radox potential Eli 35
Mill OUIIdWatDISCIVSge Permit
Groundwater Monitoring
Quality Assurance Plan QAP
ATTACIHIII4IIENT
W1RIITT1EIIESAJRM1IffMMffLL
FIELD DATA WOIRKSIBIIEET FOR GROUND WATER
Description ofSanpIhgEventrpk tL1j er
Location well name Mv siftS Æfid initW itinu ri9 t.13
Date and Time for Purging i-2R nc and Sampling 11 different pJ//..
Well PnrgingEquip tJºd LSp or.jiiler Sfiurnp ifotlierthanllenhet
Sampling Event o.Agr Prev Well aiwc4 Sampling Eveflt /UVviil
pH Euffer 7.0 -1 p1 Rtsffer4.O
Specific Conduy4taEce t1uMHp$/cm flPP
Depth to Water Eeforduging IDi ii Casing Volume Well t2 tp .653h3Well/367
Condttwnce a9g 3gcc jill tor gr
Welt Water Temp avg RŁSk Pe$tk1 Si 39 uthidity
Weather fond o$vi EKLl Auth TØnp $or to sampling event x3a1
Tune Q Cit Pued Titnet Oq4 al PUrged fS.2
Conduct ice 3Z7 Co Cqnductance 3grt
pH G.41
Temper ture___________________Ternperatt I3.Cj
Redox PotentW Eli -3sg Redox Potential Eli S6Q
Turbidity Turbidity
Time 1O2F ClaiPurged L1 .45
Conductance sS93
Time Gal Purged
Conductance 33
TempemtllteJf
Redox Potential Eli
tth ..
47
Miii GoMwaterJDischaigePermit
oundwatet Monitoring
Quality Msvrauce Plan QAP
Date 1L17116 Revision
Page 41 of 41
Volume of Water Purged
.1.
ggCalcWafion
.2-17
The to evacuate two casing vqlwnes 2V
___T2V/Q75 MLr
Number of casing volumes evaciated if other than twO -t
If well evacuated to droiess mimbthrSf gallons eithud
Name of Certified Analytical Laboratory itbtheti%iaflsIgyLaiis tnet4cpa Vti
se 3j
ren
$SffeitoRom
ISWoI
itishfls
frfre
Prese4c4
uik4jY
\TOCg ua
4iiidŁnts
yyMetals
MI it Nba-
Radiologics
arossAtpba
Other specicy
IN
tJ
10011
25GW
Sæl
SanI volume
.J1zO4
lIMO3
ÆfijAdiIed
USO
cnw4
if apreservative is used
Spccit\jType and
Quantity of Preervtive
Onmnan1-cJ..4 J1JIJ arce.4 ..flume
.Mka-Km
tA9$
bkL MM
Vri s4 o4 ampe ako ptj0Z37
Flow Rate in gym
sI6I0 --.33
Mill C-rotws Discharge Permit
Omuadwater Monitoring
Quality Assurance Plan QAP
Date 2.25.07 Revision
Page 40 o141
Afl4C14flENT
WJIITII MESA TIJJRAMifJM MuLL
FILERS DATA WORYSILJT FOR GROUND WATER
Description ofsamplingBventrk Ca0140r rra$ioc1tr
Sampler.
Location well naine NantØ aiid initials AInaJ.LI.rcssf Fl
Date and Time for Purging S-19-OR and Sampling If different .e
Well Purging Equip Used /pmtp or_bailer WØllPump if other than Benetfl fJ
Sampling Event eaaoAtt Prey WqII Sampled in Sampling EvenL MJ3
pflBufferl.O Ii pflBuffer4.O 4.0
Specific Conductace.Hi q1\qJ9$/cm WejI Depth 97
Depth to Water BefordPurging VLI Casing Volume Well 4f/rn .653h
Well LLg3 .367k
Coacluetnnce avg pH otviMter avg SC
Well WaterTenip avg 15 .O ..Re$/il4Lwb Turbidity
Weather Cond CovA ExtI Ainb Temp.pdoE sampling event
Time n1aO hal Purged Tflne O43a Gal Purged
Cohdctance Conductance
pH G.3 pH.t .CfS
Temperature IbOt6 Temperature IS
Redox Potsntjal Bk 32Q Reclox Potential Bh 3Th
Turbidity___________________Turbidity_____________________
______________Time cjD Gal.Purged 1%
____________________Conductance 5q
pHi L3.5 ____________________
Teniperattnt jLj
77 Terniictature Jc -O
Redox Potential Bk sz1 Redox Potential Bk
Time cic GaI.Purged_..S.3
Conductance______________________
.jt
Mill Groundwater Discharge Permit Date 1117.06 Revision
Groundwater Monitoring
QiwlityMsurancePlauQAP Page4I o141
Turbidity Turbidity_______________________
Volume of Water Purged
gpingRnte Calculation
Row Rate 03111 gpm Tune to evacuate two casing volumes 2V
smo T2V/Qrn 30 Mn
Number of casing volumis evacuaS if other than two___________________________
ji well evacuated to dryness numbrbfgalJoiis evacuatd____________________________
Name of Certified Analytical Laboratoiy itbtheitSi Energy Labs Amet-e.cn Lab
frch \JOCSb
znciSnt SPk
laS
dtcle
$ªihjile.Volanne
flSfiiliØw
thi4i.SSWed
Lv
iltrtdSe
Preservative Added
jeiSe
vocs 4N 3i4oid Yfl WI
Nutrients
ReavylVletals
All OtIS Non-
Radiblogics
rossAlpba
Other specify
1St
lOflul
250Ait
SOI1II
L000ml
Sample volume
JIO4
flM03
NoPresOrvÆtiAddªd
112504 YN
cnc4rnarMks
--
--
If preservative is used
Specify Type and
Quantity of Preservative
Comments Arra
o-iet
o.n eanpkno_ctn Ptrac
Mrtt4s fu4 tncA 4CL4s4oFtow
t...-JL
4afl at 0915
Vgi st al
prc.a4 ure
9wtketk elt gr SO
smpk 44 4t oqqt
br tats dec-C .-
W4t Rt11 CJ0A
--
Date 2.25.07 Pevision
Page 40 of 41
ATTACIHIM1EN
WJHIJITJE B4ESA URANMJM MILL
FILIICLF DATA WO1SIHIIIET POR GROUJMIB WATER
Description ofSampllngEventrA rai4 tgee1t
.$ampfrr
Location well name MW NasqØ aid mitiatit.14a loc..ttfl 1114
Date and Time for Purging 3-09 and Sampling if different
Well Pugging Equip Used /pwftp or ..bailer Well Pump if other than Benbet QE
Sampling Event Asr rnsAbA4et Prey Well Saniped in Sampling Event MW il
pufluffer7.0 1.0 pHBuffer4.O 4.0
Specific Conductance uMU Os/cm Well Depth 12
Depth to Water Beforiiuggin Casing Volume 3T Well w4 .653h
Welt Li $G .36Th
Conductance avg pH ofjttÆter vg
Well Water Temp avg 19 C7 Redox Potential SiflLTurbidity
Weztther Cond._________________Extl Amb Temp.priofl6 ampling event 17c
Time O7iO Cal Purged Tifue Ocoo 9a1 Purged ctc
Conduciauce..O 0C.1 Cqnductance 5-t
pH puH
Temperature 14 Temperature
Redox PotentialEh S1 ______
Turbidity
Time OSOS
Conductance
Gal Purged
iS
.L
p11
Mill outulwater Discharge Pennh
Groundwater Monitoring
QuaThy MsnrancePMi QAP
Reclox Potential Eh
Turbidity
Tine Og07 CiaLPurged 1.2
Conductance________________
Temperature 141i
Redox Potential Eli 3%
TmjiraUe i.e
RedoxPotentialEhL355a
.1
jqijjj -Ciouthwater Discbarge Permit Thae 1L171J6 Revision
outadwater Monitoring
Quality Msuraace Plan QAP
Thrbiditv
Page 41 of 41
Vohanie of Water Purged
jpjpg Rate Calculation
Flow Rate in gpt
5/69 _____
Time to evacuate two casing volumes 2W
T2V/Q
Number of casing volumes evacuated 11 Other than two._
If well evacuated to dryness number 61 gallons evacuiMd 11
Name of Certified Analytical Laboratory if Other Than Thiergy Labs Lh
JOC.b
Sls
Tak4i
1cjnie
jkY
ciSleat_fotbr
thin as snecnfled
iIIKnA
circle
WeseantiveAthlled
lckde
VOCs HCL
Nutrients
BeavyMetals
All OthS Non-
100th
2SOliu
250 ml
tJ ffio3
NPrvAvÆtlve Added
Radiologics
arossA4iha
Other specify
J7
..
101Gm
Sampli volume
112504
If preservative is used
Specify Type and
Quantity of Preservative
encr4 josank
UJIA...1 ni-ac4 DrafPnmmentsisnout
Ctfir raLtA
b4tcs 1v pucy1t
AOfl
Mill Groundwater DiscSge PeSt
GroundWater Monitoring
Quality Assurance Plan QAP
Temperature 19
RedoxPotCntialWh 3%
Turbidity
Timeft%Oat Purged
Conductance
pH C.L1
Temperature
Date 2.25.07 lRevision
Page 40 of4l
AflACIHIIt4IIENT
WIHIIITIE 1MIIESA IEJJItANIIIIJM MIIL1L
JFHEU DATA WOJKSEIIEET WOJ1 GIIOUND WATER
Description of SaniplingEventr 44r GraunI um%r
arnpicr
Location well name M\d Name alid initiat .wn 4OLLr p4fj iti4
Date and Time for Purging CI and Sampling if different N14
Well Purging Eqnip UsØth or_bailer we ikunp if other than Beniiet
Sampling Event oAa AyJoLt Prey Well Sampled in Sampling Event IIaJ
pflBuffer7.O to pllBuffer4.0 40
Specific ConductMce Wi iMRcTIS/cm Depth 17
Depth to Water 11efore PugingSS 43 Casing Volume 4ff WeU_735 1i53h
3Well iU/1 .36Th
Condttfrmnce avg 1Łj5 pH fWster avg 31
Well Water Temp avg Red Poteiitth 1b SW Turbidity
Weather Cond P6Aj 1nS Extl Mnb Teinpprioitoainplingevent Xlbc
TnneSJ laiPurgeth Tnte Gal Purged g
CozclÆcSce Ccpnductance
pH O5I pn.Ct14 .5
Temperature
Redox Potential Eh RAO
Turbidity
Time rsC Oal.Purged
Conductance 53
Redox potential Eh 3S1
ci
Temijiatre
RedoxPotentialEh 374
Volume of Water Purged
g$ng Rate Calculation
Flow Rate in gpm
SKiD _____
Time to evacuate two casing vouqies 2V
T2V/Q-.MM
Number of casing vobnnes evacuated If othet than twoL
if welt evacuated to dryness tmmbrbf gallons evacute4 up
Name of Certified Analytical Laboratory itthedhanErkergy LabsAmcr4 can Lh
OCSb
DgSI
TafiØir
Icfr4
.SAiiileVduume
jita1ffljS
Fil
ICJLikI
Preservatfre Added
elide
tlithisis specified
Reliii
VOCs
Nutrients
HØavylta
All Other JSThIF
Radilogics
GrossAJtha
Other specify
1N
i..N
Ij
4Oi11
iflorni
2SOIiIE
250 liii
t0JOniI
Sample volume
tD
act 1St
IIO4 IV
Ht1O
IEeservtite Added
112504
Ifapresercative is used
Specify Type and
Quantity of Pesenhrtive
41W4
L/
comments Arrnk rbn flnIAats orcsesj murae
AAX 4ictmphac CUf4 tMJ
R4
L4Lj1e %4 OCO
io.br 4cr
Pt Oouk
an
at s4 .smsnpk
%e4 V3L
ALI AtME7
4S
Mill Groundwater DisthargePerndt Date 1L17J16 Revision
roudwnterMonitorug
QuslftyMsurafleePlao QAJE Page 41 of 41
nridity TTT
Mill Grouncflwater Discharge Pesrait Date 2.25.07 Revision
Urounthwter Monitoring
Quality MsurancePlanQAP Page 40 of 41
ATTACJIIIMENT ii
wIT1EiAUMANEUM MILL
WELD DATA WORKSIIIIEfl FOR GROUND WATER
Description of SamplingEventrck tw4r raniL 4sAr
..Sawpler
Location well name j4t Name afid initials itPoLLrnft it 14
Date and Time forPurging -2S-os and Sampling if different AJ/4
Well Pinging Equip Useth pump or _Jailer Well Pump if other than BeSet QE
Sampling Event GAte Ay.Uft Prey Well Sampied in Sampling Event Mu Q3
pllBuffer7.O IA pH5uffer4.0 40
Specific Condu4a.4ce il\qqq$/cm Well Depth
Depth to Water Befoaurging XS S4 Casing Volume Well_4J1 .653h
Well zw/4 .367k
Condtsttance rig 17 61 tdtdr avg 9CR3
Well Water Temp avg 36 1eddx Potential lk 4OtTurbldlty Cs
Weather Cond._________________Extl Atnb Temp.prior to sampling evenO
Time 4S7 lal Purged Titus 01 Gal Purged tj
Conductance Conductance
p1________________p1 LLI7
Temperature t5
______Red ox Potential Eli LIQJ
Turbidity
Time Gal Purged
Conductance
pH .q
Temperature 14 .33
Redox Potential Bk
1t
Time fl717 GaiPurged S.Cfl
Conductance aM
TmSture 3$i_
Redox Potential Bk 913
tVkV
Temperature 411
Redox Potenijal Bk 4O
Turbidity
Mill Groundwater Discharge Permit Date 11.17.06 Revision
Groundwater MordtoriAig
Quality Assurance Plan QAP
Volume of Water Purged
ping Rate Calculation
Turbidity
a2
Page 41 of 41
Flow Rate 0310 pa
Sf69 ___
Time to evacuate two casing volumes ZV
Tt2V/Q 37pLi
Number of casing volumes evacuated if other than two jk Jii
If well evacuated to dryness uumb6r bf gallons vacuktl
Name of Certified Analytical Laboratory if Other Than Energy Labs______
Theg$aiith Sk
ÆiSfiS
Sit lie
ffiiittfthØEth11ed
Iit
ftv
cfr4
PwesemtiveAkd
VOs
Nutdents
Hiavylvtetals
All Othei Non-Ic
bUrnt
25O1t
Bili
HSO
.111403
No PretSvÆtivS Added
Radiologics St ..
OrossAiplia
Other specify
cnw4
R$
ioaoml
SamplO volume
jj2o4
If preservative is used
Sfteit3p Type and
Quantity of Peservattve
-________________
Cnmments iw nc..qa leaner 3JU4 DrcwJ ..-4
o.nkamyh cucvi Pat
rt$cs stthI ŁOit7 JcaijsLo4
s4t
.-4-
%rA
sasnpka 1Jcc4
------V
a.-
tkcr
bca4ltiu
L-
5uy.A rkm1Le4 NJ4-
..
Mill Groundwater Discharge Permit Date 2.25.07 Revision
Groundwater Monitoring
QuaWy Assurance Plan QAP Page 44 of 41
ATTACffMENT 11
WIHUIT1IE MESA URAMUM 1%4111LL
FFELII DATA WOEISEEET FOR GROUND WATER
Description of Sampling Event Qwxrrlc Grounl 1Cjrjcr
Sampler
Location well name MU Name ahd initials tvnr J1oijIIM1 2JL
Date and Tune for Purging _dC oot and Sampling if different AAJ I-Jo USC
Well Purging Equip Used _pump or_bailer Well Pump if other than Bennet
Sampling Event ChA GAL Prey Well Sampled in Sampling Event MaJ
pHBufferl.0 1.0 pHBuffer4.O 4.0
Specific Conductance c4Tf uMHOSIcm Well DepthS Cr3-
Depth to Water Eefore Purging 10-0 Casing Volume 4D Well .653k
Well 367h
Conchwtance avg pH of Water avg
Well Water Temp avg ReiixPotethiEt Turbidity
Weather Cond art Amb Temp.prior to sampling evenQC
tune oq 01 Purged_________Thpie CL Purged
Conductance 13 Conductance
pH_
Temperature
Redox Potential Eli IS
Turbidity
Time Gal
Temperatu9ZlL
RejvItential Eb
ACrhidih
Tem3cZ
.4.lox Potential Eli.Potential Eh
Mill Groundwater Thscbarge Permit Date 11.17.06 Revision
Groundwater Monitoring
Quality Assurance Plan QAP
Thrbidity
Page4l o141
Volume of Water Purged When Field Parameters are Measured
jgg Rate Calculation
Flow Rate Olin gpm
8160 11JI4
Time to evacuate two casing volumes 2V
T2V/Q 1u-
Number of casing volumes evacuated if other than two
J.f well evacuated to dryness number of gallons evacuates
Name of Certified Analytical Laboratory if Other Than Energy Labs Mcrcc ktesh Lcc
54 \0C4zsSsJe
Tan
IcLSe
3iiiWeVohosne
indicteifthØr
ISIi.specftkd
beloW
flfci Preservative Added
ffrle de
YOCs
Nutrients
HoavylVletals_
All Other Non
R3
3x40m1
lOOm
2SOtht
25011
.-HCL
iIO4
00
No Preservative Added
Radiologics
6rossApha
Other specify
.-
QI7 1000nil
Sample volume
-____
112804
If preservative is used
Specify Type and
Quantity of Preservative
Comments rcvce 4--it J-oqU
Att -tsrf eaal-.j
dPC1 J-p1.ctcth tts
aJ-S.plnlt 4ttccn s1-jac7
ak-II
veelk C14 4/ptt clpurk
Mill Groundwater Discharge Pennit Date 2.25.07 RevIsion
Groundwater Monitoring
Quality Assurance Plan Page 40 of 41
AflACWt4IIENT
WIHIIIflMIESA MHLL
FRD DATA WORIKSHEfl FOR GROUND WATER
Description ofSamplingEventrtk C1014 .4
Samplpr
Location welt name /M \sJ NanØ afid PaLLrfrn
Date and Time for Purging S-Vi-and Sampling if different
Well Puting Equip USe or_bailer Well Pump if other than Rennet fl
Sampling Event WSAJ3O4Lt Prey Welt Sampled in Sampling Eves Mt4 lE
pHBuffer7.0 -to pHBuffer40 4.0
Specific Conductajce .t1 IMH9/em Well Depth 1V4 -S
Depth to Wa or BeforPurging lOG Casing Volume 41 Well 20 .653k
3Well .367k
Conduetanceavg pH 61 Wat avg
Well Water Temp avg.4S 2.S Redox Potdntuil EhJjLjurbidity 0Lv7
Weather Cond EKtl Amb Teznp.prior to sampling event 14
Time JJ1L lal Purged Tune OW Gal Purged jq
tbndctance 28Z C\Conductance 1O
Temperature Temperature \5
RedoxPotentialBk 117 RedoxPotentialEh
Tuthidity_.Turbidity
Time t0æ Gal.PurgecLig1 Time Gal..PurgeL3t.C.5
Conductance /CAO Conductance_gSi
Temperature I9 Temttpt ri ..
Redox Potential Bk_______________Reclox Potential Eh
______
jig-OmuSwaterThsclwrgePerS Date 11.17.06 kevialon
kouadwater Moultorlug
Quality Msnrance Plan QAF Page 41ff4
TutbiditiL
Volume of Water Purged 3C1
fflgRate Calculation
Flow Rate Qi inw
S/60 .33
Thne to evacuate two casing volumes 21/
T2V/Q 2-1ut
Number of casing volumes evÆeuatl If other than two_
If well evacuated to dryness number of gallons evÆcuate.C
/fli ...
Name of Certified Analytical Laboratory It Other Energy Labs mit4 con \L Lob
sch JOC.b
pfSanSe SL
ItRt
SªSle Volume flt4
1iattiiher fcjtae
iSspecifled
PrescrvSveAdfled
ci elY
VOCe
...N
\1
....%
Nufrients
HØavyMetals
All othŁz NbJI
100 ml
25GmL
tFinl
H2o4
.Th YN
NPreseivÆtivc Added
Radilogics
GrossAlpba
m--
j000ml gso4 YN
Other specify SaniplΠvolume
If preservative is used
SpecifyType and
Quantity of Preservative
ctitt4
Comments Arra or jfl itin.r jL1iJ pree4 tr
01fl carnptn\cuc4 Pustt be.an IV30 --O_mciLJkU 120
Mk4 MA be tso Vq oF aMpk At flii-
L.M s%L_Asqj
Gteccr t34irou4k.a$Nyj
1thc-s.
Mill Groumtwatet JNsthage Pennit
ondwates Meting
Quality Assarance Plan QAP
Date 2.25.07 Revision
Page 40 of 41
AflACIIIIMINTJ
WJIMfl MJSA URANI MH1LL
FRIELD DATA WOflSIBIIEET FOR GROUND WATER
Description ofSamplingEventrk Cnnr4ar prpuaj tr
.Sampler
Location well name Name alAn initiafrTj.ja oLLrn jr it 14
Date and Time for Purging t1 and Sampling if different jflt
Well Pnjging Equip US /puthp or_bailer well Pump if other than Bennet
Sampling Event At trws4rr Prey Well Samped in Sampling Event MW 12
pllBuffer7.0 to pflBuffer4.O 40
Specific Conduc.tae uMU9Wcm WIl pepth
Depth to WaterBeforPurging_PiO.t Casing Volume V4 Well 2SL3 .65311
Well AJi\.367k
Conductance avg oflVdter avg
Welt Water Temp avg P1 Redthg Potential Si LTurbxdity
WeatherCond MWQo Extl Amb Temp.prior to sampling event 3t
TmieJW%Gal PurgeJ Thud O14S Gal Purged
ConthicEance Conducthce .1
PH 7.S
Temperature 1-Uc Temperature Jg..71
fl...c
Redox Potential Eli Redox Potential Eli 43
Turbidity .L Turbidity Si
Time Gal Purged_-LH
Conductance 4S
-7.%7
Temperature
Redox Potential Eh gL
-ra
Time U4F Gat.Pnrged t.3
Conductance
Teinattre 1t%15 ...
Redox Potential Eli
IA
14ili Groundwater Discharge PeSt
GrouudwaterMothtoriug
Quality MsurancePkui QAP
Date 1117.06 Revision
Turbidity
Page 41 of 41
Volume of Water Purged
gggCalcalafton
Plow Rate in
S/6O
Time to evacuate two casing volumes ZV
T2V/Q 156
Number of casing volumes evacuated if other than two_
If well evacuated to dryness number of gallons ŁvacdtL A//Ia
Name of Certified Analytical Laboratory wbneri%sSxgy Labs Asrccut \Ar tab
jygaSk St1n $i$le.Vohome
iSiØthetoSr fcfrjle
SS as specified
74
Preservative Added
tiØY
VOCS
jiiients
HeavyMetals
39 109111
25GS1
IC Uj
RCL
u2O4
liMO3 iO
Au OUtS NSF
Radiologics
250n11
4._
IC 1TiPresºivative Added
....
arossAiphi
Other specify
cc4eitt
fl 1009m1
Saniplvoluine
l\H2SQ It
IC
If preservative is used
Specify Type and
Quantity of Preservative
Pnmment AertteXon it4t.P56 LINl Drce4 .L burnt
ki4es
ts
tsidet Ak 55 cqi sc4
4t a.4 okol
saMpJca
%pipjcr4
J4caMttt cCA4\1tŁ.
Mill Gwundneter Discharge Permit Date 2.25.07 aisiori
Groundwater Monitoring
Quality Assurance Plan QAP Page 44 of 41
ATTACIBIMEN
WI1IIITB MESA KJRANIII MffLL
JFKELD DATA WORKSJHIIEET FOR GROUND WAThE
Description ofsmplingEvenerA cA..r rrau4 boc%tr
Sanjpler
Location well name kjJ NSd Ihd initials ikJntt .lot.crflfif1 it i4
Date and Time for Purging QC%and Sampling if different ojjt
Well Purging Equip uan LpudLp or_bailer Well Pump if other than Bennet flE
Sampling Event WAU v.aLt Prey Well Samped in Sampling Event
pffBuffer7A to pllBuffer4.O 40
Specific ConducJajce Wqll Depth 33L
Depth to Water Beforiinrging Casing Volume Well ..2 .65Th
Well vn 361k
Condfttticeavg 14fl4.41 fl p1 of 1Wter avgj
Well Water Temp avg ft 32 RSªotenttal flh4Turbidity .03
Weather Cond._______________ExCI Amb Tºinp.priprtosamplingevent oTl
Time Vti gal Purged .2S Time j10 Gal Purged j1
Conthictance 3724J .4I2k Conductqnce 1411
pH pH
Temperature Ib-Temperature 15W
Redox on Eli t1 Redox Potential Eli abL\
Turbidity Turbidity_________________________
Timei4 Gal PnrgecLiY .15 Time JMO CiakPurged
conductance Conductance Iii
pH LJjO
TemperatureJ34 TenqŁrature1 tc.ScM
Redox Potential Bh Redox Potential Eli aC
cD
Mill Groundwater Discharge Permit Date 11.17.06 Revision
Groundwater Monitoring
Qua Assurance Plan QAP Page 41 of 41
Ththiditv
Volume of Water Purged
..-i
frpjpjgg Rate Calculation
at a5cc
If well evacuated to dryness numberbfgallons eiacutd 41/1.1
N/A .t -Al
Name of Certified Analytical Laboratory if Otherfhan Biiergy Labs Alfl ctat \USI Lh
MA ot JOC.b
hSfiS
ThkeR
ftkckv
SiXe.Volumpflitdth
thi4sueerned
Presenrntive Added
f$SeY
hir
Nutrients
Heavy Metals
All Oihek Rbw
Radiologics
rossmba
Other specify
Yj
ii
314onil
iooin
2501u1
250
l000mI
Sample volume
..
VU
t$
IRL tN
fl4
liMO3
PresStivb Added
R2SO4
awo.t
Ifapreservativeisused
SJftcIfy Type and
Quantity of Peservative
comments Ar J3IlLd rce.4 Zr Dtarnt
onA .sampInu Pat
batan y.
tnr4 ii Sit c.1-
Ctpov Lrr2cthocA Rc4h
mMplea
eteA
Joi 1514
Flow Rate in gp
5/60 _____
Number of casing volumes evacuated if other than two_
Time to evacuate two caning volumes 2V
T2V/Q g1 sJe
Mill C-roundwater Dichatge Permit Date 2.25.07 lRevision
Ground water Monitoring
Quality Assurance QAl Page 40 of 41
AflAC1HIR4IENT 11
WJRII TIE 4IISA 1UJItANIII MuLL
IFFELD DATA WOIE1SEIIEET FO1I GIItOUND WATIER
Description of Sampling Event4 Ctr4r roaLatr o41
.Sapjplpr .4
Location well name $4c Name the initias_ia OLI.tfl dr it 14
Date and Time for Purging oct and Sampling if different AJflI
Well Purging Equip Use orjiailer Well Pump if other than React
Sampling Event CL Pin Well Sampled in Sampling Event Mt
pllfluffer7.O 1.0 pHEuffer4i 14.0
Specific Conductajce tIl uMrjO$Icjn Well Depth
Depth to Water BeforiPuging jq Casing Volume Well4 .653k
Well .367h
Conduthince avg -Ipq6 pH Watk avg
Well Water Temp avg Redok Potenttat hgiTurbidity
Weather Cowl Extl Amb Temp.priot to sampling event 7c
TIIIWJY11C Purged c-TOne O5O0 Gal Purget
condUciance i-tO E3 Cqnductunce LjO SO
PH pfl..--Ct.i
Tempemtum Ll
Redox PotentialEh 2.U4
Turbidity
Time oao Gal Purged Itc
Conductance1D49
Temperature 25
Redox Potential Eli a7
Temperature
Redox Potential Eli i7
Turbidity
Time O5i 3al.-Purged .RJ
Conductance R03
W.-
Tenqieiature 13
Redox Potential Eli 75
fl
MIII GmundwaterDischargePerinit Date 11.1716 Revisioir
oundwaterMOrilUJriug
QtudityAssncePlanQAP Pa41 of 41
1V2UASJ__________________________TurbithLy_
Volume
ppiug Rate Calculation
Flow Rate in gpm Tune to evacuate two casing volumes 21/
S/60 _____T2V/Q Cr
Number of casing volumes evacuated if other than two v/4a ....Y
it won evacuated to dryness numberf gallons evÆcntd /ti//4
Name of Certified Analytical Laboratory if Other thai Energy Labs A4S
.4 $7
athSnnIialII thSp
Tuhu
frsrelel
SSileYeiume
MlÆWltQhbi
Filtered
f4Ke
PesereMdedjj
thali us specified
VOC
Nutrients
ilavyMetalŁ
All OtheŁ Nan-
Radinlogics
J3
.th
1091111
2EthI7
25 All
..
JP
ti
na
Oj.N
NikekwativeAdded
GrossAtt
Otherspecify
ci lalomI
Samplevolume TI
HzSO4 QOw
Ma preservative is used
SpScIir Type and
Quantity of Ptservative
icneie.t
comments Ort taaor flolIJati Oreset4 Zr btstdlP
sn cct
Nt4aLc
j44br
l.t.S
MptIIO1 cucit Pagubpg1can_t%t O1Lb
ttitkaA aLiY1ct4 S.jt seJ
4e l6pc
ctear thropjnp4 faretc
M04M.Sne a/ct Si t...Ljs
smpk
9t1eA
aIkn gt
tOrILcf 41
n$34
Mill Groundwater Discharge Permit
youndwaterMothtoring
Qu Assurance Plan QAP
.W 44
Ternp _____
Redox Potential Eli
Date 2.25.07 P%eviSa
Page4Oof4I
ATTACffMt4IINT1
WIHfflTJE MES.4 1URANIIffJM MuLL
ThIIELIII DATA WOW1BIET FOR GMOUJD WATER
Description ofSaniplingEvS 4Ar tatr \Rcso.xn pk
Location well naniie MJ MathS IS initials tgia lctsrnirf1 tJi
Date and Time for Purging 2iztCJ and Sampling if different
Well Purging Equip 1LJe L2duffip orjalirweilhmp if other than Benii4 fl
Sampling Event 2.IA aaAw ra4ee PiOY 41$aqj4.c in wnplingEvent atW
pllflufferlA 1.0 pHBjiffer4.O._
Specific Condncflce .StI tiMU YYj PPk
Depth to Water Deforiurging It 251k Casing Volume Well .65Th
Well .367k
CondtCtSlce 4L75
Well Water Temp avgJ t4 Med6deitki1SLr3qtTufbIdItY
Weather Cond Mo1 SAnn1
Extl Amb Temp pripr to Sampling event Ii 0c
Q7LS Cia PutgecL4L2.c Tffize c745 9a1 Purged 1$
tondUcftjEe 7SQ CqIiuctance
pH_LXJI
Temperature45 Temperature LL1Ji
Redox Poten tEa Redox Potential Eli tf
Turbidity Turbidity
Time 0810 Gal Purged Time Oc43 ial.Purged S3
Conductance Conductance
pH
Temperature 1Q-
Redox Potential Eli______
viffGronadwaterDiscbargePermir Date 11.17.06 tevision
owaterMoaitexiag
Quality Msurance Plan QAP Page 41 of 41
Volume of Water Purged
71
Calculation
1dft TTTTT
Flow Rate in gem The to evacuate two casing volumes 2V
T2V/Q l3G AAA
Number of casing volumes evacuated if dOter tvin So $4..4%1
If well evacuated to dryness numberS galloija Son WtL.t.JI
Name of Certified Analytical Labomtoxy if Othert ThIergy Labs Ajsgjc.an V.Yt5i L0b
c.4
LVI4SThDn le
Xkæ
rtiv
ttk1I
tIsriedfleJ
Filtered
LdMe
PggenflireAdderfl
VOCs
Nutriets
Heavy Metals
MI Other Non-
RadioIogcs
ir1
WOmi
25tYIkif
SO nI
.v
J-
tt
.uo4
ISleiiliAddºd
GrossAtph
Other ipecify
i00arni
SamplŒvolwne
IISC4
Ifapresenrathreinuacd
Sptciflpe and
Quantity of PtØÆervtive
cncn4
..t
Comments tu otN itnn.r 1oJtJatxt pr4e14 4r
fl MtN%OCtCI11 Pcbeyn 4-piS
fthc ngj4 CL VaILfrcL cimp leg kcn4t a35t
LtD si4 a.4-
OrccThrw4iL
tiAL MU a.J k4tJi4s
MIII C-rouudwatex Disthatge Peartht Date 2.25.07 ReviSa
rouadwatflMo1RftoSg
Quality Asserance Han QAP Page 40 of 41
ATACIIIIII4BENT 11
WIHIIITIE IIAJESA 1URANKL MJILIL
WRELD DATA WORKET FO GROUND WATER
Description of Sampling Eventrck CtsnAea4rauaek oc%tr
Sampler
Location well name MA Nam aiid initiatit4ctsrfl tJ4
Date and Time for Purging eSl and Sampling if different
Well Purging Equip Used jputhp or_bailer Well Pump if other than Ben net
Sampling Event 21t .L-AL Prey Well Sampled in Sampling Event pAbS 19
pHBufferl.O tO pllBuffer4.O 40
Specific Conduqe NI tMufiwcm Well Depth
Depth to Water BeforPnrging Casing Volume CV 4I Well ti .653h
WeD in .36710
Conducthncetavg qM Si tH 6tWiter avg
Well Water Temp avg Ig ..-035
Weather Cond 5--y Thctl Ant Ternpvnprtaampling event_________
Time 0vw CIa Putged qq Tune woo in Purged 14 $5
condueSce 2t Conductnce --\Vj
Temperature IS-C 5s Temperature 14
Redox Potendal Bk Redox Potential Bh 34
Turbidity Turbidity
Time 1050 Gal Purgeaq15
Conductance HLkC4
pH___b
Time lInc GaLPurged 9LJf.5
Conductan9l\3UJ
Temperature I5..I
Redox Potential Bk
___
Tenierature 14 .9
Redox Potential Bk 2j
tb J1
WGroudwaterDischargePeroiit Date 1L17M6 Revision
Oronadwater Mothtoæng
Quality Assurance Plum QAP
Turbidity cr
Page 41 of 4I
Volume of Water Purged
ping Rate Calculation
7Cj
Plow Rate in gem
8160 .33
Time to evacuate two casing volumes 2V
T2V/Qt .%O iUCes
Number of casing volumes evacuated if other than twOL
If welt evacuated to dryness number of gallons evªcuatd
Name of Certified Analytical Laboratory if Other Than Energy LabsAmcrka \3s L0b
UOt.b
f cr4 Smnniiile Slle
i4S
frfrcj
$Smleohune
4fkWihØr
tha1 is specified
ThlteW
Ickccl
Puesenative Added
IcJSni
VOCs
Ntrients
Heavy Metals tt
bOnd
25Dm
GP
30
Hit
..H2S04
All Oihei Non-
Radiologics
250 nil li NttsdrvÆtivAdded
GrossAipha
Other specify
1000nfl
SamplO volume
H2S04 it
11
If preservative is used
Sppclfy Type and
Quantity of Preservative
cviec4
Comments Arrtua floJUaa Diarat
anlk aenntnn aitn4 9...s k...nn .Ł itbs .lfl
tioaa i-
JaP
s4 p4 3ap eZ OF
4jigr
bZa4t-cy
tcr pj-r.t
ThI.Ant4 atJs
Mill Groundwater Discharge Permit Date 2.25.07 Revisioa
Groundwater Monitoring
Quality Assurance Plan Page 40 of 41
ATJfACHIMIIENTI
WmJUE MIESA URMtHIffJM Ik4IIILL
PHIELD DATA WORlSJfifiEET FOR GROUND WAT1R
Description of Sampling Eventy Cair4.r rawiJ 1sAw
Sampler
Location well name VJ LI Name and initials aifl -Iocsrn
Date and Time forPurging _bJ.oand Sampling if different .Afl%
Well Purging Equip Used Lpump or_bailer Wellikimp if other than BennetLQ
Sampling Event 1r Prey Well Sampled in Sampling Event MW
pHBuffer7i to pflBuffer4.t 4.0
Specifle ConducUzice Mi 1WJQfcm Wll Depth
Depth to Water efore Putgingilhi Casing Volume Well .653h
311 Well vPi .367h
Conductance avg 4iC pH of Wtter avg ______
Well Water Temp avg 15 .Q adath otantml h3 39 Turbidity
Weather Cond
R1..ti4
.1 pt.u\
.f
Extl Amb Temp.prior to sampling event
hi thl Purged Tilpe Hoc Gal PurgeLj4
Conc1dcaiice LYISiS Conductnnc_455$
pM C.7 __________________
Iti
Temperature 13 Temperature J.3
Redox Potential Uk 17 Redox Potential Eh .a.
Turbidity Turbidity
Time lila Gal.Purged c2LL9 Time lrzoo GaLPurged sc3
Conductance t4G Conductance t1
Temperature ..Trnpcraftire J.o5
Redox Potential Eli 23ci Redox Potential Eh34
-..
_____
Iwili Groundwater Discharge Permit Date 1L17.B6 Revision
Groundwater Mouitoririg
Quality Assurance Plum QAP Page 41 of 41
Volume of Water Purged
Fumpjnglbite Calculation
Plow Rate QJJ if
S160
lit ________
Time to evacuate two casing volumes TV
T2V/Qt N7M
Number of casing volumes evacuated if othr than two____________________________
If well evacuated to dryness numberbf gallons evacuatºtd_____________________________
Name of Certified Analytical Laboratory if Other twin Energy Labs \3 Lbc
comments it-fl.I prestt 4or
1itLMP1fl41r CUCA4 pez-c btaan 1oo 9thIai_4r rlg3
citkk zŁ F41 s4
L4 s4 a.1-If tnP S4Mfka 1S
ihr
bca41cg
L.1tC rot4otl-9ue
Scecpnek CJot4c
JOCb
SiiSle Volume Filtereifi
tnffofltes fgRe
thtaii spbclf led
MIII-C-rouadwaterDischaige PeSt
Groundwater MStorlng
Quality AssurancePkn QAP
Date 2.25.07 Revision
Page 40 of 41
ATTACIMIIENTJ
flH1ffTE MESA UJIAN1IIUM MEAL
FRHQLD DATA WOaKCSIBIIEET mR GROIIJI\ID WATER
Desciiptlon ofSamplingEventYtk
Samj4er
Location well name JAJ3 NtiS alid initials..Lita Patsrnmf 1114
Date and Time for Purging S-ac cc and Sampling if different_______________
Well Purging Equip thetk Lpusp or Well Pump if other than Belet
Sampling Event Prey Well Sampled in Sampling Event
pafiuffer7.O 1.0 pflBuffer4.0 4.0
Specific Condncte iMO$Icm W41 Depth 134
Depth to Water Befordhiging 71J40 Casing Volume Well Mg si .653h
Well 367h
391 pfl otWther avg 57
Well WaterTemp avg J443 I4 4114 N4 turbidity
Weather Cond F0..rW
t
Couck Extl Auth Temp.piior to ampling event
timejP2A.J tatPurged .c ttg.ib5C Qal.Purged iCi5
Condcthace 3c Conduct4nce 5z.c
p11
LqO pi
Temperature 14 Temperature t\
.7 .7
Redox Potential Eli 1St Redox Potential Eli tIN
Turbidity Turbidity___________________
Timeir3c Gal Purged .a
CondttctaflCeTh5 G.3
Temperature
.1
/Y
.1
Time 114S Gal..Purged ..g
Conductance 3J 170
Redox Potential Eli
G3J
Temiatire
Redox Potential Eh 14
MiLl Groundwater Discharge Permit Date 11.17.06 Revisiot
Groundwater Monitoring
Quality Msurauce Plan QAP
Tuthiditv
Page4l o141
Vohune of Water Purged
gjjjp Rate Calculation
Plow Rate QJ in 9P2L Time to evacuate two casing volumes 2V
T2V/Q 9S41
Number of casing volumes evacuatS if other than two .4
If well evacuated to dtyness uumbthr.bf gallons evcuatªd Ji
Name of Certified Analytical Laboratozy it Othefflian Bilergy LabAinet4 Afl Lab
Comments on -it P01144 pre.se4 4er
anA aMptno aics4 Part ok loot 9wieA talt ePr tao
Lit pro 4t sc4 al 4mp14 aZn tbaa
L4i
taecr C1COLr 4k04% c4
IzcaL dA.t kick0 G\flf-
oI \tOCb
Mill Groundwater Discharge PeSt Date 2.25.07 Revision
Groundwater Monitoring
Quality anmance PMIi QAP Page 40 of 41
AflAC2MNTA
WJIKRTJE 1MISA UMANIIUM MILL
IFFELfi DATA WOMXCS1BII1ET FOR GROUND WATER
Description ofSamplingEventrA i.Utr tsctvv pc
Sampler
Location well name Name afid initiafs lotsrn 14
Date and Time for Purging S7 2cxt and Sampling if differenQ .u//
Well Purging Equip Usett or _bailer Wail Pump if other than Ben tel
Sampling Event aciAcr nsaAJs%er Pmv We1 Sampled in Sampling Event MW iq
pflBufferl.O to pH$uffer4.0 4.0
Specific Conduqta4ce .AtiMJ1QS.Jcm Well Depth il
Depth to Water BeforPuging Lt 71 Casing Volume WelljO 67 .653k
Well_ii .367k
Conductance avg 549 pm oFWater aygLi..b .n
Well Water Temp avg DI Redox 1otentia PhQ33.Turbsdity
WeMher pond tk0J-l Sc...n Exti Ant Ternp.priprto sampling eveitt 20c
Tune J920 GalPurge Tune ipsO Gal Purged 13
CoSucthnce c3 Conductnce 35
p14 CR1 Q.47
Temperature Temperature t4
-..
Redox Potential Eli Redox Potential Wh.2
Turbidity Turbidity
Time I3O
Conductance
Gal Purged iL.4
3S73
pill 90
Temperature .fJ3
Time IS GaiPurged W.S
Conductance f71c
Trnp1atrtJ4
Redox Potential Eh 4ORedoxPotentialEhclS_________________
1et __________..1\
MIII GoundwaterDiscbargePenult Date 1L17fl6 Revisiow
Groundwater Moaitorffig
Quality Assurance Plan lage 41 of 41
Turbidity Tui ___________
Volume of Water Purged
iiMII Rate Calculation
Time to evacuate two casing volumes 2W
T2VIQ2g7 j.k
If well evacuated to dryness numberf gallons Łvacuatcid V/A
Name of Certified Analytical Laboratoiy it Other niai Energy Labs mtt4cta g3s1 Lab
\IOC.b
itS nir SanÆ Sje
iiiÆ
SSi$eV4duane
SISS11S1g
ilie4e Presrvattve Added
diiiSspejfled
VOCs
Nutrients
.L-Aj444othi
10Dm
Y-1
jj
11CC
H2O4
Heavy eta1s
All Oher Non-
25DM
25Dm
1LMO
ISPreiekvithre Added
Radiologics
iiiiAliha
Other specify
cswnt
tV
1009rnl
Sampl volume
.-
11 112S04 \N
If preservative is used
Specify Type
Quantity of Peservative
Comments Aersia on i isnner flnt U4t prcse.4 A%
OflM%fl4C3stC11 Part btan .Lti --%racA llAr
M4ufre1.tPc 4MLXC4L Ok nrc ckfl s4 a4 44MfM atna.
L41 sr4taixw
j3cr Cic hroc.So._ct pusbJf
JX
Flow Rate QX in 1L
8160 33
Number of casing volumes evacuated if other than two_
Mill Groundwater Discharge Permit Date 2.25.07 Revision
Groundwater Monitoring
Quality Assurance Plan QPaP Page 40 of 41
ATTACJBIMIENTI
WffKff MESA IURANINJM MuLL
IFHEIJ DATA WOI1LSJE ma GffOUND WATM
Description ofSaniplingEvent24 oªtr
Sainplcr
Location well name /MSs ic NaxiiŁ ithtials_114
Date and Time for Purging .3 2.O- cci and Sampling if different _jt///
Well Pinging Equip Uk Lsmp or_bailer Well Pump if other than Bonnet
Sampling Event CtoAr iwtsarnUet Prey Well Sampcd in SaniplingEventJ
pflBuffer7.0 1.0 pHBuffer4.0 I4.O
Specific Conductce WrQ0 Well Depth N.M
Depth to WaterBefottPuging St Casing Volume Well .653h
3Well jj-367k
conductance avg 13 iB dk4ter avg.gq
faJ .1
Well WaterTemp avg ILl .L RecpthaU 1YS turbidity .2-i
Weather Coed Ptxdtj/doutJ
Extl Auth Teinp.prior to sampling event 20c
Tune O4OO Gal Purgect TtpΠo25 Gal PurgecL
Concincianee 14 Conductnnce
pH pit 703
Temperature P1 .31 Temperature jq .1.1
Redox Potential Bk Redox Potential Eli Si
Turbidity Turbidity .1
_________________Time Oct30 Gal.Purged 3G3
________________Conductance 5O
____________________Temperature
______Redox Potential Eli 3f
Time 0960 Gal Purged QL
Conductance z5C
7otpH
Temperature
Redox Potential Eli 3B1
MjflGwudwatcrDisuSgePermft Date lLIlJt6 1eSiuxt
roundMOSriug
Quality Msurance Finn QAP Page 41 of 41
_______________________mildity_________________________
Volume of Water Purged
Rate Calculation
Flow Rate 0D in gpm Thne to evacuate two casing volumes 211
_______________T2V/Qt 27 A.An
Number of casing volumes evdcuaS if other than two 31
If well evacuated to dryness numbºrbf gallotis evacuiitd I1U/
Name of Certified Analytical Laboratory if bthedhii Efiergy Labs Amrtcs \si ih
c.% JOC..b
ufSSle TidSe
ciavthe
ji4etothI
jispeeifkdt7bdow
FikwS
ditl4
Presenratfive Added
Id tie
VOCs
Nutrients
ileavy Metals
Au othii NthF
PU
kAaLj
314tflæ1
loOnil
250flu1
2Sf tnt
1t It
tJ
tL
hf
RCL St
HO4
YINO3 Ct
Nil PSivatlve Added
Itadiologics
GrossAbba
Other specify
CT
ThS
L000mi
Samplvolume
n2so4
cnr4 Io%CUU
..Ma pmservative is used
SpecifyType and
Quantity of Preservative
Comments dL on%it 0iLJ4 prewd pure
ariA arnnlnn t1efl4 P.srnA h.AThA .d n140 9unreg 1O11 Zr I20
A44O ct s4
S4r Łsgsp
bS SccAr rln4s
p4 ampea aI AtflCMR.
Mill GndwterDiscinrge Permit
Groaml water Monitoring
Quality Msurance Plan QAP
Date 2.25.07 Revision
Page 40 of 41
WJWIIE MESA URANJIIIIM MILL
MELD DATA WORKSIRIIEET FOR GROUND WATER
Description ofSamplingEventrk CAr tZSetr
Location well name 14 Naiiith alid initials taiintt .o..Lrn t.14
Date and Time for Purging X7 aocoi and Sampling if different jj
Well Purging Equip Useth /puæip or Well Pump if other than BeSt fl
Sampling Event 2a asAtr laJIet Prey Wll Sampled in Sampling Event MW au
pllBufferl.0 1.0 pHluffer4.O 40
Specific Conducta4ce .Atl--uMfi Okm Well Depth qt\
Depth to Waterfleforeiugging ia Casing Volume Well C..3 Cj .653h
Well...sjj .367k
Conduttance avg 1453 pH 6friteravg 15
Well Water Temp avg 14 MS Redox Potential 11IL36q Turbidity
Weather Cond._________________Extl Amb Temp.pipr to sampling eveitO
jjme Eoc C1FPurgecL TI1Le CI3O Gal Purged
Condiidaiice 147j Conductance c0g
5fLt pi.f Lets
Temperature 11 17 Temperature i4
Redox Potential Eli Redox Potential Eh
Turbidity___________________Turbidity
Time OI36 GaLPurged SC.Th
Conductance 34 09
Temiiatkre its
RedoxPotentialEh
ta
Time 0C4O0
Conductance
GaiPurged
t1c5
3h-1
Temperature
qs
Redox Potential Eli 3C
t.t ...
Ill-QrniSwaterDischargePermk Date 11.17.06 Revisinic
Groundwater Monitoring
QualityMscJraflCePJanQAP Page4l of 41
Turbidity Tiibidity__________________
volume
pgjate Calculation
Flow Rate in gpm
3160 ________
Time to evacuate two casing volumes 2V
T2VIQ .S1 cAjn
Number of casing volumes evacuated if other than twO
If well evacuated to drwess number of gallons evacuitcL
Name of Certified Analytical Laboratory ltOtherthSEnrgy Labs______
SSe
Takiin
leVthnmedLiS re
iileI
Presetvatftve Added
clktfr
aiSapŁeifIed
VOCs
Nutrients
Heavy Metals
All other Non-
itadiologics
GrossAlpba
Other specify 49
loom
zstnht
ml
1009nd
Sample volume
1j
HSO1
flJO3
Nd Preservative Added
1ISO flN
crct iw4it
If preservative is used
Specify Type and
Quantity of Preservative
Comments ArrijJ on Fe nsj ltwr MOIUM fr4CAt
otMptn\tJtA
Vtl.er bt1a 0k tlttp.9uwcA_ifl Air Ilil
Mn..krc P1M A4 nMQ 3Cir tJ 4k.a aflq4
LcC S4c Jecos
l_1__aA
pc \cts CInr hrjOj
ctaLA.Y
aCt
H-
Date 225.07 lRevisioa
Page 40 of 41
MITACJRIMIENT 11
WHII MJESA URUANIUM MILL
FREIUO hIATh WORKSMET FOR GROUN1th WATJER
Description ofSamplingEventrA c9r4r s3atr
Sampler
Location well name MW 2.6 Name ad itntith TiJft 4oufl it FL
Date and Time for Purging IM -3 C\and Sampling if different
Well Purging Equip US Lptuap or_bailer Well Pump if other than BenetLQ
Sampling Event .A-iA Prey Well Sampled in Sampling Event MtJ
pHRuffer7.O tO pHEuffer4.O 4.0
Specific Conduc5aceM1 _qIIiQIcm Wll Depth
Depth to Water l3eforPurging Casing Volume WelkL31 .653h
Well .367h
Conductance avg 7O5 pH EtWaier avg
Well Water Temp avg_4 iL Reddi rotSual flhS6 Twbxdity
Wetther cond
S.nn
CLJA Extl Anb Teinp4priorto ampling eveOt 23
Time pgc7 Gal Purge Time OZsq Gal Purget
condadance t75 Conductnce 70a0
p11 7.17
Temperature Temperature 1SIL
Redox Potential Eli Redox Potential Eli 3W
Turbidity_________________Turbidity
_______________Time OOt t3aLPurged L.Q-
____________________Conductance 7O .54
Temperature
_________________Redox Potential Eli 3J
Mill G-roundwaterDischargePerndt
Groundwater Monitoring
Quality Assurance Plan QAP
Time ªs Ga Purged .g
Conductance 70 CS
pit
Temperature
30
Redox Potential Eli
-a
Mill CroufwatetDisvhargePermit Date 11.171J6 Revision
Groundwater Monitoring
Quality Assurance Plan QAP Page 41 or4l
Turbidity Turbidity___________
Volume of Water Purged
ppjngRt Calculation
Time to evacuate two easing volumes 2V
T2V/Q iL1u111
If welt evacuated to dr3niess numbbr Of gallons evacuatcl 41
--
Name of Certified Analytical Laboratory lEather than Energy Labs AwtteLas Lb
J0C4b
gg 1
Pr1
Saisfievolmue
friltSitfliØr
flilili us specified
1J
tie
PreservatIve Added
elSÆY
Nutrients
Heavy Mitals
All Other Ion-
Radihlogics
.jjj
10Dm
250W
25Dm
...-
Y-C
ic
3
cJ
act
MO4
11N03
NieÆervafive Added
3wssAlplia
Other specify 43
j099mI
Sample volume
H2$O4\
If preservative is used
Specify Type and
Quantity of Peservative
ctwat Cnar
onA t4xMpL%cP cucn1 Pwy bt4pn tMSIL 9ufl%eik tSIL4j2i2j
0A.A -jj ..L 4a11a a4 nnrl
___._tttJJtajgr
ia_0bcj
--c3-_----
s44f1y
CIr 3h eeat.4
41 1et.JcuAS
._4
Plow Rate in gpm
51611 _____
Number of casing volumes evacuated if other than two_
Comments in c.t .flcU41 Cana 1-U U.1 Oresa4 .L
Mill C-rovzndwaterDistharge Perelit
Gwndvreter MStorimg
Quality Msurance Plan QAP
ATTACMR4IENT
IUH MESA MuLL
FRELS DATA WOflSFiIEET FOR GROUND WATER
Description ofSampliagEvent2 Cnqa4e rraintJ c.aw
anjppr
Location well name MuJ .22 Name aM initials i1idc1t latsrtA tJ4
Date and Time for Purging _j..and Sampling if different vn
Well Purging Equip LTsØd 4iuthp or_bailer wai Pump if other than Rennet
Sampling Event 2Ia u.4Ar Grwiss4a3aa Prey WeJI Sami$ed in Sampling Event
pflBuffer7.0 1.0 pflBuffer4.0 40
Specific Condii4ace qIk4J$/cm Well Depth
Depth to Water BelbrdIwginLl7 Vj Casing Volume Well 30.5L .653kWe..367k
Conductance avg 3O pH 8f5Wakr avg 57
Well Water Temp avgLLSO RŁddic Potential flhAt Turbidity
Weather Cond tlcear 53tm ExtI Ainb Tenip.prip to nmpling evefit
iiine OSC Gal PurgerL Time n1.O Gal Purged IL
Conductance fl3X.Conductance 7az
Temperature
______________Redox Potential Bh
____________________Turbidity
144A __1 Ternjiaqre 11EO4
________________Redox Potential Eli 35O
Date 2.25.07 iRevisian
Page 40 of 41
Temperature 111.31
Redox Potential Eh a35
Turhiditv
Time om0 Gal PurgecL2.9 Time OI Gal..Purged 34
Conductance 73 Conductance__________________
pff
Temperature
Redox Potential Bk 55
Mill Cro water Discharge Permit
Croundwater Monitoring
Quality Assurance Plan QAP
Date 11.17.06 Revision
Tuthiditv
Page 41 of 41
Volume of Water Purged
..
yjping$4te Calculation
3LL
Flow Rate in gprn Time to evacuate two casing volumes 2V
_______________T2V/Q J5
Number of casing vohunes evacuated if other than two 1.5
If well evacuated to diyness numberf gallons evacwutÆl u/A
Name of Certified Analytical Laboratory if Other tibi Energy Labs mtec.an sI
Si
r4i
elSe-
SfiuileYahume
iilip$ilothØ
thÆŁspcdfled
AiwS
Lcfrck
Preservative A4
drek
VOCs
Nutrients
Heavyifetals
All Other Na-
tt
100 ml
250W
25O il
.02SP4
11N03 19
NhesØrvativØ Added
Radiologics
OmssAlpha
Other specify
ct 1000ml
saznpt volume
H2SO4 if
cac4 Cslott
ffapresetiveisued
SpecifyTypeand
Quantity of Preservative
Comments _ArbiJ nn il1tLa DreetJ Durae
P..n .sna ak nC.c Vs.ia.A I.t1
eriitak Ak tin Vii c4 en at iirtultIatar..aL4 s4c oir nimca-nrC1t.IA.f\-c4stlA4%e5
..
S160
Mill rounclwater Dischairge PCTh1t Date 2.25.07 Revision
Groundwater Monitoring
Qua1i Assurance Plan QAP Page 40 of 41
Wff1II11E MJESLA UJRANMJM MILL
FIBELD RATh wOacIBJEET FOR GWUND WATER
Description of Sampling Eventrck Cutu4er GrowiA tsSo.r
..Snmplqr
Location well name /4W 2$NaiS aM ipitialsjitjAflt POLLZfl it 14
Date and Time for Purging 1-aoooi anti Sampling if diflØrent jfl
Well PujigingEqtdp tJs /pmiip or_bailer Well Pump if other than Rennet El
Sampling Event 2a C.ktr Pretr Well Sanip4ed in Sampling Event tAuJ
pUBuffer7fL ii pflBuffer4.O 110
Specific Conduc4taice ti7 iMJJQ$fcm WeU.Deptb
Depth to Water Ueforeiktging4j i-C Casing Volume 4fl Well 11.7 .653h
Well AIJ/\.361k
Condtictilace atrg O5 o$VÆuiravg 39
Well WaterTemp avg 19 40 RedthPotentk1 hi7C._Turbidity
Weather Cond \-Extl Atub Temp.pripr to mPlevent
0110 Ia Purgedi Tifite aia6 Gal PurgecL
Conductance 4070 Cqnductance YO 60
pH csq pfl--
Temperature Jt Temperature i1i.3j
--
Redox Potential Eli 319 Redox Potential Eh .37
Turbidity Turbidity
Time Y145 Gal PurgecL 16 Time o155 GaL-Purged
Conductance Li 05 Conductance
pH
Temperature 14.L1J ..7 Temiattge FH5i
Redox Potential 1311 3\Redox Potential Eli 379
__________________
MW Grouudwater Discharge Permit Date 11.1746 Revision
Groundwater Monitoriug
Quality Msurance Plan QAP Page 41 o141
Tedædity Turbidity_________________
Volume of Water Purged Ma
pina Rate Calculation
Plow Rate in gpm
.33
Number of casing volumes evacuated if other than twoj_
If well evacuated to dryness numbrbf gallot eiracnaid_
Name of Certified Analytical Laboratory itbthedhaii mrgyLabtAjn4to t4
frc.%c$UOC.b
sLSle Sk
IthIII
tth4Ł
S1SileVoKo2me
flildkiliifothØi
-ziispºeiffed
kiltered
Cfr44
Piresenrative Added
VOCs
.........4 -.
sk4trini Yl RCL
Nutrients
Ileavylvletals
All Other Nail-
Radiologics
t2
100 ml
zsoThf
250 il
.U2S04
EMO3
NitesØStive Added
JrossAtpba 1000mI rq n2so4
Other specify Sampl volume c1
If preservative is used
Specifflpe and
Quantity of Preservative
eflcflkt 1o1Mk
Time to evacuate two casing volumes 2V
T2V/Q
1jjflt
jc tLcL
b30Ak Occrcc-cF
-I
Mill Gwuudllwater Discharge Perroit
Groundwater Monitoring
Quality M.surancePlan QAP
Dale 2.25.07 JRevisiou
Page 40 of 41
AflACJEIIWIENT
WJ1B1ITJ M1SA 4II1LL
llThW DATA WORJS1HIIT FOR ORG WJD WAflR
Description ofSamplingEventintk s.npl c7
Sampler
Location well name A\K NSØand initials
Date and Time forPurging 5.xi2ca9 and Sampling if different
Well Puagiug Bquip ut Lpwtw or_bailer Well Pump if other than Beniiet
Sampling C.A1 AiJL Preir WeI Sampled in Sampling Event MW
pHBuffer7.0 to pHuffer4J 4.0
Specific Condu94ce uMHO/cm We1 Depth 1L.
Depth to Water BeforØPnging_JZ .3.Lt Casing Volume Well A7 .653h
Well .367k
conductnce atg 403 pn 6t$a4tt avg__________________
Well WaterTemp avg IS .f ne tWb i2t turbidity
Weather Cond
PecŁ4
.1 OJJ Earl Amb Teinp.prior tci sampling eveOt
Tune flIO Purged 33 Tune pis5 Gal Furged 413
Conductance Conduct ace 4O5O
p11 .gcj pfl..G.5
Temperature Temperature 15.13
V..
Redox oten$Eli Redox Potential Bh_3C1
Turbidity Turbidity__________________________
Time Ni
Conductance
GaiPurged ..L
OLU
pH
Time iSS Gal Purged .25
Conductance LI X\pHTemperature 15.71 .2 Fcnllitre HY
Redox Potential Bk 3Z Redox Potential Eli
1t
Mill Groundwater Discharge Penuit Date IL 17.06 Revision .1
Groundwater Monitoring
Quality Assurance Plan QAP pg 41 of 41
Tufoidity Tbkiity____________
Volume of Water Purged 1SIIa
jgpiqg Rate Calculation
Flow Rate QJ in gpt
8/60 ___33
Time to evacuate two casing volumes 2V
____T2V/Q J5 Mn
Number of casing volumes evacuatS if Other than twoi
If well evacuated to dryness number itgallons evacuatSxL
Name of Certified Analytical Laboratoiy if Other Tha Thiergy Lnb
Thiijgg
TIkSi
itnSey.
$le4le
cSf1ith1Øt
thlulEagpecifled
Filtered esemeAdded
elide dic1e
VOCs
Nutrients
Heavy Metals
All OihŁr Non-
Radip.pgics
Alpha
Other specify
rN
340æii
10Dm
2hnf
250 iiI
11109mI
Sample voIue
YQ .-
13
Pi
..
RCL
UzSO4
lIMO3 IC
NPWive Added
H2SO4 if
ycacc4
If preservative is used
Specifytypeaml
Quantity of Peservatlve
Comments ArreA vN7 tprn.r j.101Upt prcwJ pur%c..
.Mptno cnn Pixr\c bt14 at t5DO VtseL oil Ar.i1
.suLA 4Cit cn...L 4._1t
-asd4h4-
t3tr kar
.A1t11 414
k5F3Ot h.etcdJu
fl
..fl1J...a
itttA
MID Groundwater Disclnrge Pemdt
Groundwater Monitoring
Quality Assurance Plan QAP
AflAC1HII%4IINT
WWTLE M1SA lWltA11llh MuLL
ERIELD DATA WOEKSIHBEET ThI G1O14 WAT1EH
Description ofSampliugEventa4tk 4Aer nac4 ªtr jCesosipU
Sampler
Location well name ML Lf Nathd ahd initials tia octrn 14
Date and Time for Purging -Ctk and Sampling if different_3.33 ao
Well Purging Equip tJged Lpump or_bailer WelIPump if other than BeaSt
Sampling Event Qu.fey Well Sampled in sampling Event AAuJ7
pHBuffer7.0 1.0 pHRuffer4.O 10
Specific Conductance WI uMROS/cm Well Depth
Depth to Water BeforPuging VlSI Casing Volume Well 3.d7 .653h
Well .367k
Conductance avg 14473 pH 61 fihiter avg 13
Well Water Temp avg RedoicPotdnthl TS1 Turbidity
Weather Cond
PosJrI%1At Eatl Ainlt Tenip pripr to $ampliug eveOt
Time ml Purged________Time i3 Gal Purged
Coquciance CWS2.t Cqnductance Lj9
pU .q
TemperatuttJ.Ot Temperature IKUS
Redox Pot ntial Bk ecjox Potential J3h st
Turbidity Turbidity
Date 2.25.07 Revision
Page 40 of 41
Time P31 Gal PurgecLJA
Conductance 41$
p_S.Q5
Temperature fl4
Redox Potential Eli________________
Time n3.3 GaLPurged gLH
Conductance________________________
s..
Ternpatre S5%
Redox Potential Eli ic
MIII Goundwater Discharge Permit
Groundwater Monitoring
Quality Assurance Plan QAP
Date 1L17J36 Revision
Page 41 of 41
Tuthidity
Volume of Water Purged tefl
ggp jug Rate Calculation
Turbidity
Time to evacuate two easing volumes 2V
T2V/Q_rj Mk
if well evacuated to dryness numberbf gallons eiracmite.d 7Lt1
Name of Certifled Analytical Laboratory if Other thali EiidrgyLabsAn4 the
Sd
Ths
Tie
siuMvo.e iiti
1lth1Oflnr cle
iah as specifiedb1
Preservative Added
felŁ
VOCs
Nutrients
Heavy Metals
AU othiŁ Non-
Radiologics
GrossAipha
Otherspecify
e.Q
IC
t9
100Sf
250 thI
25OiÆl
tp.2
1OfiOml
SamplOvolwne
1j
ai
ua.
Ji2O4
11N03
NoEresevatlve Added
H2804\YN
cncev.L
If pmservative is used
Spcify Type and
Quantity of Peservative
be
L4 stic 4ft 93
bC44%t 3-cc\i
ir
..3IL ccn
r skQ eq -cJ vscsvL Savnc
Job
Flow Rate 03 hi win
S169 _____
Number of casing volumes evacuated if other than two_
Poref
Afitt
Comments Arrkkek on th ft1 tnner JIoiUati pre$e4 pary
o.nA t4 Purist ..Ł 9uaoeA L\V.H Vz
U.
Mill Groundwater Discharge Pem Date 2.25.07 IRevision
Groundwater Monitoring
Quality Assurance Plast Page 40 of 41
ATTACIBI1t4IEIkJT Ii
WITE WIISA URANH1UM MiLL
FRELIID DATA WORKSEIIEET FOR GROUND WATER
Description of Sampling EventrA 44r rt-au4s ptr
Sampler
Location well name MW L4 Name ahd initialCTjjR Honft 14
Date and Time forPurging..3 -a Oct and Sampling if different -2l
Well Purging Equip Uset Lpuffip or_bailer Well Pump if other than Rennet
Sampling Event tV.C.AIIr Prey Well $ampied in Sampling Event IA v3
pflBuffer7M_1.O pHBuffer4O 4.0
Specific Conducte Wi iMRJi/cm Well Depth
Depth to Water l3efoiiPuging 11 Casing Volume Well S.3t .653k
Well.pp .361k
Conductance avg 1133 pa Viter avg___________________
Well Water Temp avg ..giitiieiilja1j ls2 Turbidity -a
Weather
COnd.Po\rkla
Erctl Auth Temp.pflor ampling event
Tune 1441 gal Purged W..TiMe fl4L Gal Purge SQ
Conthicianee L14J Cqnductaæce
Temperature 17.46 Temperature Ui
Redox Potential Eli________________Redox Potential Rh
Turbidity Li Turbidity
Time Gal Purgec2SL Time I4SS GaLPurged 4.GO
Conductance_____________________Conductance 14
pR 0M6 4T4
Temperature ILD Tiati 1.O\
Redox Potential Rh II Redox Potential Eli qi
jWjfl-GxollndwaterDscbflrgePermit Date 11.17.06 llevision
Groundwater Monitoring
QualiW Msurnnce Plan QAP
iwhiditv
Page 41 of 41
Volume of Water Purged
fgjp big Rate Calculation
PtowRate 03 in gpm
5/60 .33
Time to evacuate two casing volumes 2V
T2VIQ 2fl f-kit
Number of casing volumes evacuated if other than two_
If well evacuated to dryness number lit gallons eiracudtd_
Name of Certified Analytical Laboratoiy if Other Than Energy Labs V5 Lab
tch SJ
cjSaiSe $thflDJg
cfrccI
æiifieValume
gdelieaSfouiet
thiliI specified
1Mle Preservative Added
cird
Nutrients
Heavy Metals
AU Other Non-
Radiolng_
OwssAlpha
Other specify
MO Ii
100 liii
2501h1
2501t1
1009nil
SainpI volume
ffi
--
112504
lIMO3 CX
NaPiesŁrvativeAdded
112804 Cl
rercn4
Ifapreservative is used
Specify Type and
Quantity ofPeservative
Comments Aersj.as on C91-LhiU prcses4 4or purc
r.t.ii .fl.e 11ntR-IL
S4c t.4 rs
tOpbr I-\I cdt040 Gorn J-pezc4icks
bea4ktt c-41A 4tatcIj b3kb .-
LU Li
Arr\ccct s4c A-OLZS QiIJD prc5cAr or cui it it sth or
Start4s 4.Mtis LV4
n.aA ----1--t 1fltfll Q..wz.k..na
Mill Groundwater DSharge Permit Date 2.25.07 Revision
ondwaterMointorrng
Quality ASS urance PlaiT QAP Page 40 of 41
ATTACIBIll4ONT ii
WRJITJE MESA URMWIIJM IMIIILL
FRELD DATA WORKSffliET FOR GROUMU WATER
Description of SamplingEventA CaA.r no43oc%tr
Sampler
Location well name M\tJ Name aiid ithtialt JAnUk$oLLrf1E 14
Date and Thne for Purging sifl/oi and Sampling if different
Well Purging Equip UsetL 1ptuIp or_hailer Well Pump if other than BeniwtLQ
sampling Event 2a Csc.Atr Prey Well Sampled in Sampling Event Mb 31
pRBufferl.O 1.0 pllBuffer4.0 LU ____
Specific Cond4ice Hi iJ\OWcm Well Depth
Depth to WaterBeforiugiug1C tO Casing VolumeV Well 23 .7 .653k
Well Afl4-.367k
condwthnee avgL32%pH dyrtdr avg
Well Water Temp avg 19 RSktc PoteitiI sh1gJ Turbidity
Weather Cond fja Extl Amb Tsnppriorto sampling event 2Pc
time tIM Purget2 Time RA Gal Purged 17
Condcauce Conductance PiL
p11 at
Temperature Temperature 1\C4Q
Redox Potential Bk 175 Redox Potential 13k 13
Turbidity /0 mrbhlity
Time SO Gal PurgeLA Time illS Gal.Purged
Conductance________________ Conductance__________________w.L51
Temperature t5Cfl Temrature1.75 _iL
Redox Potential Eli Redox Potential Eh_2.34
tf
j4flGmundwaterDiscbargePermk Date 1L171J6 Revision
Groundwater Monitoring
QufityMsurancePlanQAP Page4l of 41
______Turbidity ------
Volume of Water Purged ________________
fygg$ate Calculation
Plow Rate in win Time to evacuate two casing volumes 2V
S160 T2V1Q 53
Number of easing volumes evacuated if other than two 1.7
If well evacuated to dryness number of gallons evacMte.d u%
Name of Certified Analytical Laboratory IOthertvth Energy Labs mt4 aw Ltab
lie
IkØn
$iiijileVdum iiqrd
StŁdtØfthhr cirØlie
tsfied
PreservatIve Added
VOCs
Nutrients
ifeavyMetals
Au Other Non-
Radiologics
OrossAlpha
Other specify
tithii
K3 tti
S9
lOQml
25Oiuf
Oml
.SMt.-..
UflOmI
Sample volume
Yot TT RCL
R$O
liMO3 CX
NdPrServitive Added
V.-
H2S04\CY
rcnceAt
If preservative is used
Specify Type and
Quantity of Preservative
Comments 11 tnnr lloILlatk prcsei4 Verpurdc
oaJ.t4Mptt%\cucn4 crm_bpn 3tS-ci %ra4 teil
ftPt cicrk ak ftio sda S4Mple aI at 13Z
Ltt
t3hr CAcctr tk.hot..4 /L4
WA4A lJ.x
-O -.
Mill Groundwater Discharge Permit Date 225.07 Revision
Groundwater Monitoring
Quality Msarnnce Plan QAP Page 40 of 41
AflACllt4llENT1
WJRIIITIE IMllSA UMANIIffJM MILL
IFIUELIIJ DATA WIflSIHIEET FOR GROUND WATER
a-ow.P
Description of Samplmg Event nwi-icr
Sampler
Location we name MW .2.C Nzune and initiak_trGr fl0
Date and Time for Purging JQGj and Sampling if different /WA
Well Purging Equip Used _puPip or_bailer Well Pump if other than Bennet__________
Sampling Event Qucclv Gtoccr \13.k Prey.Well Sampled in Sampling EvenLSJlt
pHflnffer7.O tO pHBuffer4.0 -1.0
Specific Conductance 117 uMEIOS/cm Well Depth 1-L33
Depth to Water Before Purging 74z-t1 Casing Volume 40 Well .653k
Well .367k
CoidtiSnceAVE pHVVatŒr ivg_____________________
Well Water Temp avg___________RS4PotS Turbidity
Wenther cond Stan Extl Auth Tcmp.prior to sampling event .b tL
Timej sal Purged_______Titiie 9$Purged Z-
Conductance %35 Conductance
pH pH
Temperature .7 Temperat _____________________
Redox Potential BhL..LCt Redytential 13h_________________
Turbidity 4bidity
Temperatum
Potential Eli Rx Potential Eb
Mill Groundwater Discharge Permit Date 11.17.06 Revision
Groundwater Monitoring
Quality Assurance Plac QAP
Thrhidilv
Page4l of4l
Volume of Water Purged When Field Parameters am Measurec
ppjflite Calculation
Plow Rate in wm Time to evacuate two casing volumes 2V
ZV/Q ____________________
Number of casing volumes evacuated if other than two_
If well evacuated to dnjuess number of gallons evacuate.cl_
Name of Certified Analytical Laboratory if Other than Energy Labs /pYtaccai u3J
Se
TnWiØn
IcSpF
thjiKe Volume
indcatelfotkØr
thSassneeffled
hilowl
fl4cm
flle
Preservative Added
ekde
VOCs
Nutrients
HØavylvfetals
tOrn
loom
25Oli
.-
Si
RCL
11404
lIMO3
All Other Non-
Radiojgics
yl tst 250 ml CS NoPresØrvative Added
IrossAipha
Other specify
ljXllJml
SampiS volume
CS 112504
Ifapreservativeisused
Specify Type and
Quantity of Preservative
v-ccA
4_tjt .4 0c jitkct 4-
se.4 9V pctt-snc3trt
ocos l-c it
c1c
oclr3
C.Ictr
uOc.4hu
St.1 j
Comments
IDflACn
tc Rjncr
AflAClWIWNT
IURrKTE MISA 1IJRANKUM MIILIL
FMIITh DATA WORKSHEfl FOR GROUND WATR1
Description ofsamplingEventrtk ow
Location well name M3 27 Name and iuitialtit.ips atsrjy 1114
Date and Time for Purging S-jq cY5 and Sampling if different u//4
Well Purging Equip 1J Lptuæp or_bailer Well Pump if other than Benhet EL_
Sampling Event Ar rJaL Prey Well Sampled in Sampling Event Mui1
pllBuffer7.O to pHfluffer4.O 40
Specific CondLtctc tIl ifljfofm WcltPpth 15
Depth to waterneforePuginj SS Casing Volume Sf Well is-i .653h
Well on 36Th
Jonduthlnce avt LJ i4 6fViter avg 15 2%
Well Water Temp avg 15 33 Rett otenda Ehj..Turbxdity
Weather Corn cL mwi Auth TŁinp4pripr to sampling event Si
Time fTh .Ini PurgeilS Tithe W4b l3O Mt Purged 1C
con4actance_______________________Conductance IS
pH 7-O2 pH.7 _____
Temperature Temperature 4j
Redox otenUal Eh 976 Redox Potential Eh 51 L/
Turbidity Turbidity
Time goo Gal.Purget CM Time 1W30 JaLPurged s
Conductance Conductance go
PR 73
Temperature 15
Redox Potential Eli _________________
Mill Gwunclwater Lisclnrge Pennit
Groundwater Monitoring
Quality Msnmance Plan QAP
Date 2.25.07 lRevisioa
Page4O of4l
Temperature Fe
Redox Potential Eli 2Y1
4..-
-p
Mill Cm dwater Discharge Permit
ronadwatet Monitoring
Quality Assurance Plan QAP
Date 1117-06 Revision
Page 41 of 41
Volume of Water Purged
jpjrig Rate Calculation
Flowkate WJpL
SI6O _____
Time to evacuate two casing volumes 2V
T2VIQ 17i Mk
Number of casing volumes evacuated it other than two_t4
If well evacuated to chyness number hf gallons evacud u-A
Name of Certified Analytical Laboratory if Other Thai Energy Labs Amjccq Leh
Xf$aunij SS
jVj
fclSJ
$ihj1eLVdume Filtecd
fjkjdiStflitkØr cfr4
liSi specifiedhi
2t.P
Per.vatkeAddedlaY
VOCs
Nutrients
ReavyMetals
All Other Non-
L1 bU
tJ
34131nJ
ZOOmI
25bi
250
tsI ..
j4
YJ
Ret
flttO3
NomsSvititAdded
Radiologics
kossMpha
Other specify
Ct 100Gm
Sample volume
112S04
serta Ciott
..If preservative is used
Specify Type and
Quantity of Preservative
comments dL
Aflvk dAPflflkAtt 1.Jt4..j.iS ...aA 4F
-ct-U0IlA4prcw4 arC
%rae4 tarit Zr Q_
ttLj
._4r%4 ---
acr CXcer
L4 %4
Mill C-ron vvater Discharge Peimit Date 2.25.07 Revision
Groundwater Monitoring
Quality Assnrance Plan QAP Page 40 of 4ff
ATTACJENT
WJHJJITIE MESA 1IJJIAN1II MJILL
JFIIIELD DATA WO1PUCS1fillfl JFOJI G1IOUPJD WATEIR
flesciiption of Sanlthg Event2 4sjw4r rraniLiAoc%cr
Location well name Mv Nate Ski initials laLLr1pt -it
Date and Time for Purging 5-act Ot and Sampling if differentL ilk-
Well Purging Equip tJe LiiSp or_bali iUurnp if other than Benie
Sampling Event 2Ia ssr ttt41U Prev.j Well amped in sampling Event MIA3
pHBufferl.0 1.0 ertt0.0
Specific dte 111 i1Q/cm rp vi 9-
Depth to Water BeforiiugingSL Casing Vohime Well -Zl fS .653h
3Well 367K
conduetaæceav 19 4I$atdtayg s4
Well Water Temp avg lb niL4 PofeitW Eli S2turbidity
Weather Cond fk
o4i
Extl Mnb Tthip prior to sampling event .3 0c.
Tir IIIO alPuigad 53 Tflp IIlc 9alPurgeLCfS
o1cwc Vz cqiauqtoce
L95 pu.tO
_________________Temperature IS
________Redox Potential Rh L1
-______________________Thrbidi
Time IaIO Gal Purged .31 _________________
Conductance cm _________________________
pH 7.IM p11 7.rCt
Temperature ..TiratQL4S a___
Redox Potential Eb3CRedoxPotentialEli
..j
Tempeitum I.D.IO
RedoxPtntjalQ3h sq
Fnrhiditv
Time L15O GaLPurged 30
ConductanctjG5
MW QcottSwater Discharge Permit
Grotmdwat Monitoring
Quality Mswance Plan QAP
Date H17.O6 Peviaion
Page 41 of 41
Ifty TTTT
.1 M4--SVolumeofWaterPurged________________
iWmJ Rp Calculation
flow Rate OJ in gpm Time to evacuate two casiqg volumes 2V
.33 TZV/Q 171
NuberofcaSngvo1uffiºsevaiuitedQfotherthantWc I5-ja
If welt evacuated to tkyness numbergauons eiicuitd ..ititp
Name of Certified Analytical Laboratoiy it Outer tint sgy Labs tstA.a Lab
-V.
Comments on JL itn.r PoIUi 9rewJ
anA Vtfavt btkCIn 0tlflO-VIAfl%CA I3UrA.CLMk$t4c ..na V41j4 sampk Zn Jio
Ltt S1t a4
tahr dccir-jyct L04 -j _____________________AL 4JJPt-E
Mill Groundwater Discharge PainS
Groundwater Monitoring
Quaffly Assurance Plan QAP
Date 2.25.07 Revision
Page4Oot4l
ATACEJMIFZNT
WIHUITE MESA URANJIUM MILL
1FRIUED DATA WORKSIHHEET FOR GROUND WATER
Description of Sampling ventrt fl1X %Ae%tr
Sampler
Location well name /4W Name and initials iTioia etsrA 110
Date and Time for Purging Si /a and Sampling if different_________________
Well Purging Equip Usect Lputnp or Well Pump if other than Bonnet jE
Sampling Event.i ZUJISr Prey Welt Sampled in Sampling EvenLJ/4
pffBuffer7.O 1.0 pHBuffer0 4.0
Specific Conducpwce Wi u1VlijCIcm Well DepthS JO
Depth to Water BeforPurging 77 Casing Volume Well .na .653h
Well .367k
Coidtttenceatg 4p4q pRofVtªvg fl
Well Water Temp avg .7 RixPtºæIiai 2N1 Turbidity ta5
Weather Cond Egtl Amb Temp.prior to sampling eventL2LCst..
Time hOa.GaL Purged ShI Tirnd Gal Purged IR.15
CondÆctauce 107k Conductance c43S
pL $S.C
Temperature I5.oc Temperature S53
Redox Potential Eli Redox Potential Bk
Turbidity Turbidity
Time Hofl Gal PurgeCM15
Conductance tip Lj
pH
Temperature .3Lt
Redox Potential Bk 23
-J
TOne IMSS GaL Purged 36.3
Conductance Lj OQL
5R1
Temjierature 13.14
Redox Potential Eli L54
iWilliOroundwaterflischarge Permit Date IL 17116 Revision
omidwatcr Monitoring
Quality Assurance Plavi QAP Page4l of4I
Volmne of Water Purged Mic4
ppjgg Rate CaIculatiq
flow Rate in gpnt
S/60 33
Time to evacuate two casing volumes ZV
T2V/Q IZ7 tK
Number of casing volumes evacuated if other than two_
If welt evacuated to drnjess number hi gallons evacuatqcL Jifi
Name of Certified Analytical Laboratory if Other Than Energy Labs can \cs LaiL
Sc%sjos
peofSaniS ik
TaTiØn
Icfra
JeVune
indicatfothØr
tbIuias specified
klaw
F4py
icfr4
Preservative Added
circle
VOCs SxDiiil HCL
Nutrients
HØavyMetals
1JOml
250W 14
SJ
HO4
ff1403 QQ
All Other Non-
Radiologics
ml Ne Preservative Added
GrossAipha
Other specify
Q L000mI
Sample volume
H2S04 CX
qj
If preservative is used
SpecifyType and
Quantity of Preservative
cneent
Date 2.25.07 Jaevision
Page4Oof4l
W1FKff MIESA MILL
RELII DATA WOIIKSJRAET FO GIKOU1D WAThM
Description ofSamplingEventak M1f4f
Sampler
Location well nameJk4j PA Name arid initials a14oLA t.i4
Date and Time krPurging3/L/2Oi and Sampling if different
Well Purging Equip Usk Lputhp or_bailer WeliPamp if other than Eethiet
Sampling Event CAr AaL Prev WIl ampe4 in Sampling Event______
pflBufferl.O to pHBuffer4.Q
SpecifIc Conducajcetfl tMflO/cm Well Depth
Depth to Water BefwiPuging Casing Volume 41 Well lSzi .653k
311 Well A/fl .367k
Condudsncetwg 970t1 pH4tVaavg
Well Water Temp avg LI Itedoic Pofential EhLTnrbidity
Weather CowL CZfCI.r cbttc Extl Amb Tsnflprior to ampliiigevent
Tinier jjq Ti4te1CSC l.PtuecI g.g...
CondUctzqice 47 51 Cqnductgnce W7I
pH G48 ___________
Temperature jg.3Q
_____________Redox Potential Eli 113
________________Turbidity
Temperature t.4
Redox Potential Bk
Turbidity
OS
Mill Groundwater charge Permit
Growidwat Monitoring
Quality Assurance Plan QAP
Time 0$omo GaL.Purged dM ffJ
conductance 7Cj7
Time 0115 Cial.PurgecL IS.15
Conductance
pH .ai
Temperature Lj
Redox Potential Eli
LI -rI/a
P1rr
Trniwtr ic4 .5Th
Redox Potential Eli
Milk Cmundwater Discharge Pennit
Groundwater Monitoring
Quality Assurance Plan QAP
Date 11.17.06 Revision
Page4l of
\Tolmne of Water Purged YWwSsM
gping Rate Calculation
\srhidity________________
Plow Rate 03 in gpm
sI6o _____.33
Time to evacuate two casing voumes 2V
T2V/Q
Number of casing volumes evacuaS if other than two._
If well evacuated to dryness number gallons evacuktd._All/i-
Name of Certified Analytical Laboratory fothertiaiiEæergy Labs Amttcc 3s
siocs
OBIM SiIØ
TAkes
c.tSji
SSileYohunie
iidiŁitŁWoOS
thIt aS specified
belOw
WEcd
fjie
Pfeservafive Added
Øfrel4
VOs
Nutrients
HeavyMetals
iii Otliek Nba-
Radiologics
1t
loom
2505i1
ThJml
.-RCL
RQO
ritqO3
NPesviitiveAddºd
GrossAtplia
Other specify
ci
CQ
L000mi
Samplªvoluwe
112504
IfaprevativeMus
Specify Type and
Quantity of Pitservative
frcnci4 Cr%MkS
Comments trt sc cq-1
aMD1h%nCUcA4c 9af44
Caa.n UnIJa.a ore.se.aJ fltsgMP
tvL1A A4t1CL c.1 4d1a anist
O2O.L4tAeeleA kh.Il GIL
Oh fllS
---.---.-..
bcaMqL
flao h14i clLpca caL1o-.
Mm C-rouadwater Distharge Pemiit Date 2.25.07 IRevision
Groundwater Monitoring
Quality Page 40 of4l
ATTACJHIMIIENT ii
WJRULJUE MESA IUMANMJM MILL
liIELD DATA WOflSIBIEET miGIWUND WAT
Description of Sampling Eventrck Cqgu4.r rotntgk ctr
Sampler
Location well name MVJ 2A Nmnaiidinitials_tTjm aLL2flA t.14
Date and Time for Purging 5-s-and Sampling if different
Welt Purging Eqnip Usetk Lllthp or_bailer WØ Pump if other than Beniet
Sampling Evet2 tar AoLL Prey Well Sampled in Sampling Event Ma
pHBuffer7iL to pHBuffer4.O 4.0
Specific Couduchcce t1SEJP/cin Well Depth lID
Depth to Water Befortucging 77.3C Casing Volume Well 24 .653k
3Well 367k
conductance avg .a It pH Qwater av
Well Water Temp avg $3 $i L2Y_Turbidity
Weather Cowl tkar Bxtl AmK Temp.por ampliOgevent fl
Tmze_OiO Purged Ttpe OThO Gal Purged 14 i$
conductance_____________________Cqnductnnce
pH CAD cfl
Temperature
Redox Potential
Turbidity
.1
%J3
Temperature 14 .4
Redox Potential Bk
Turbidity
Time Gal Purged .tS TimeA000 Gal.Purged 31 .5
conductance ei YS Conductance Jj 35
S.
Temperature Temjiemture flt19
Redox Potential Bk 2i3 Redox Potential 13k
-a ______________
Miii ouadwater Discharge Permjt
GrowidWaterMoaftoring
Quality Assurance Plan QAP
Date 11.17.06 Revision
Page4l of4l
Turbidity
Voltune of Water Purged
pQjg Rate Calculation
WtY TTC
FlowRate Qjia gpm
S169 .33
Time to evacuate two casing voumes 2V
T2V/Q IA f-4n
Number of casing volumes evacilaS if other than two
If well evacuated to dryness number of gallons evacSe4_A.f tsr
Name of Certified Analytical Laboratory if Other fh Efiergy Labs Amu4cav 3s1r gah
frc.4
hpiiShllla SIt
Xkeia
thithe
SihijileVolannie
gjlesiroihet
hak ssveeif1uc
below
Filtered
IdSIe
Preservative Added
elSe
JOCs
Nutrients
HeavyiWetals
Au Other Nba-
3k4OTih1
loom
zSoM
2591
HcIJ
IO4
HktO3
NoPrØservÆtive Added
Radiblogics
imssAlpha
Other specify
UJOOml
Sampli volume
u2so4 fY
If preservative is used
Specify Type and
Quantity of Pmservative
cncc4 1io%MX
Mill Groundwater lDischarge Permit Date 2.25.07 Pevisien
Groundwater Monitorilig
Quality ManrancePlan QAP Page 41 of 41
ATTACIW4IIENT
WH1IITI MESA UIRAMUM MuLL
111E11211 DATA WORIKSIJUEET JFOR GROU1D WATER
Description of SamplingEventrck tus4.r tAo4er
Sarnpjer
Location well name ku Name and initials iinv 16tsr 1111
Date and Time for Purging 13 /t and Sampling if different
Well Purging Equip U8e4 Lpuffip or_bailer Well Pump if other than Bethiet
Sampling Event 2.IK JmLt Prey Well Saniped in Sampling EventJj
pHBuffer7.O It pllBuffer4.O 4.0
Specific ConducayIce Ni u1VJJ1O/cm Well Depth 2.
Depth to WaterBefore1ucging11l Casing VolumeV Well 3R.33 .653k
3WdH A/.367k
Conthotance avg J149 dlRlTdter avg 13
Well Water Temp avg 1t4 qo Reddk Potentiht Eh2LTurbidity .2
Weather Cond
.$u.nnJ
ExtlAmb Temp.pior t6ampling event Y4
jjjog lal Purged SZ Tune 44 1101 Gal Purget 15.25
conthictance 17 39 Conductance IIM.S
716 pH
Temperature 4.Temperature .4
fr
Redox PotenSt Eli 25i Redox Potential Eh 225
Turbidity Turbidity
Time %1 Gal Purg
Conductance 17
ed AoS
pH_719 ..
Temperature 15
Redox Potential Eb
Time iflS GaLPurged 3.Z
Conductance IO3
pa_
TemlŁrature t5a
Redox Potential Ehlf
...
MI Groundwater Discharge Permit Date 11.17.06 Revision
C-roundwatet IVlothtorMg
Quality Assarance Plan QAP Page 41 of4l
Tuxbidity ________
Volume of Water Purged
f1iSg Rate Calculation
Plow Rate in win Time to evacuate two casing volumes 210
8160 _____33 T2V/Q_XS
Number of casing volumes evacuated if other than two fl
If well evacuated to dryness nmnbthr bf gallons evÆcuÆtd NI
Name of Certified Analytical Laboratory ftherJiian Endrgy Labs mtrccr
s.c%o4 JOCa
2slirnS le
iciris
ujrc
ihjileVoknmeiWS
fitS us spectifed
Filtered
ffrq
PreservatIve Mded
ciictÆj
VOCs
Nutrients
Heavy MtaIs
MI Othek Won-
Radiologics
GrossAlpini
Other specify
34Dh1
loOm
250 tnt
250 in
1oao rn
Sample volume
Y1 ..RCL
.HO4
111403
NoPreservthrc Added
-.
112S04%
cnc.nL
If apreservative is used
Sftcify Type and
Quantity of Preservative
Comments A-a on IIflU ..naer 1ah1.AdLl
AV%j ctunptnt\t7tA
M4L4.fet aiLm 4y
Lci s1
Clear
3St GLo.r iSjs
ios-
oP
ci eca in
4M13k1 etn at I77
MIII Groundwater Discharge Pemit
Groundwater Monitoring
Quality Msurance Plan QAP
AIIffIMIENT 11
WIHTII1E 1SA flANINJM MIILL
FKEJLD DATA WORRS1SGET FOR GROOND WATER
Description ofsamplingEvcntrck Cuzu4r Ioc1tr Pa1lJd @4\
Sanjplr .0
___________________Name afid initials .oLLrnR9 It13
TernaWre 61
Redox Potential Bk
Date 2.25.07 MeSS
Page 40 of 41
Date and Time forPurging RO and Sampling if diffemut Al /-
Well Purging Equip Use Lpnthp or ..jaiier WellPump if other than Bennet QE fl
Sampling Event Cc.A-GA4 Prey Wll Samped in SamplingEvent 3t
pX-IBuffer74 1.0 pHBuffer4.0 4.0
Specific Conduciajice 111 iI49Sjcni Well Depth 132.5
Depth to Water Befor Purging Casing Volume Well 17 .653k
Well AJ/f4 .367k
condttthnce avg iij LII pH WatØr avg
Well Water Temp avg 19 kedthc Potentttl Si3f Turbidity 11
Weather Cond ScAn1 Extl Aib Teznp.priot Wampling event JP
Time fl36 Gal Purged Tfle UWC Qal Purged 11
condudauce CQZUJUCtOnCO 41
pH fl pH
Temperature PL.I Ja4 Temperature4
..
Redox Potentjal Bk 25.C Redox Potential Bk Its
Turbidity 31 Turbidity 22 .5
Time 143CS Gal Purged R.7 Time 4E IW GaL-Purged %.3
Conductance Conductance Ui
S-._S-Il
Temperature 77
Redox Potential Bk aoj
.4
Mill Groundwater Discharge Pesiuft Date 11.17116 Revision
ounclwater Monitoring
Quality Assurance Plan QAP Page 41 of 41
Tufoidity -T Turbidity__________________
tjf._p.-
Volume of Water Purged 31
gjphig Rate Calculation
flow Rate in gpsn Time to evacuate two casing volumes 2V
sico _____________T2WQ_2lCk M1
Nwnberof casingvolumes evacuated if dther than two
If well evacuated to dryness numbØrbfgallons evactd .iul j\
Name of Certified Analytical Laboratory if Other tian EnSgy Labs et4tcu \zs Lab
s4 ci JOC.b
hje pjº
TIS
iiirc4
SShiiiJeVohaue
iSlfifliØt
flak as specifiedha
Yiitcrd
frjtciej
____
er.vatfive Added
Økel4
Nutrients
HeavyMetals
IAII Other %ow
10Gm
25Mt
250LM
ti
HCL
fl2O4
flhtO3
NPreiŁrvÆtive Added
Raditdogics v1
JrossAlpha
Other specify
Lid 1000S
SampM volume
iq H2S04.fl rr
If preservative is used
SpecifyType
Quantity of Preservative
tctw4 -tOtt
rnmments AertiaA ra c.ti.hUL CS..l-LlUa.i rrese4 fsrnP
thriA MMPflflC.tUM4 9ar4.c
Mrji4c tdc jh
L41 S14
C.ItQtd\
bcaMtie c1 cktc LLa sv
baan fr
Pqi SC SCJk kc4
th11
pIO
Mill Groundwater Discharge Permit
Groundwater Monitoring
Quality Assurance Plan QAP
Date 2.25.07 Revision
Page400f4l
AflACIHIMRNT if
WIIIIII7UE MRSA URANIPUM aL
IFifELffD DATA WOMCSJBIIEET ThN Wit GROUND WATER
Description of Sampling Event uJ CAt
Location well name MW .O ______________________.---.--
Time Gal PurgccL Time Gal Purged
Conductance_______________________Conductance_________________________
_____pH
TemyZ
Potential QTh
Sampler
Nameand initials eC...ftit.L
Date and Time for Purging S-Rc-ot\and Sampling if different
Well Purging Equip Used or Well Pump if other than Bennet
Sampling Event kAAc 04\As Prey Well Sampled in SamplingEvent iwr 1W3
pflfluffer7.O 1.0 pHBuffer4.0
Specific Conductance Vi1 uMHOSIcm Well Depth
Depth to Water Before Putging v/4 Casing Volume Well .653h
Well Al/a .367k
CoxidUÆtalneaVE pHqfliinrvg.
Well Water Temp avg RitdxPotsdal Turbidity
Weather cond.__________________Extl Amb Temp.pdor to sampling eveOt
time 015 S.thi Purged_________Thpe Gal Purge
conductance Conductance_________________________
Temperature Temperaturey/
Redox PotentialEh 33 Redo9htial Eh_____________
Turbidity Tyhity
pH
Potential Eh
Mill Groundwater Discharge PeSt
Groundwater Mouiitoriug
Quay Assurance Plan QAP
Turbithtjc
Date 11.17.06 Revision
Turbidity
Page 41 of 41
Volume of Water Purged When Field Parameters are Measure
gngiing Rate Calculation
Flow Rate in gpm
5160 _____
Time to evacuate two casing volumes 2V
T2V/Q__________________
Number of casing volumes evacuated if other than two
If well evacuated to dryness number of gallons evacnated_
Name of Certified Analytical Laboratory if Other tan Energy Labs_491 er 113 J.aL
5011
yje of $auiS Sle
flken
.ciMe
SihillbleVohnme
ESicatØthtJiØr
ththhk.speclDed
beloiv
Filtered
fle
Preservative Added
circle
VOCs
Nutrients
HŁavyMetals
AiI Other Non-
Radiolpgics
GrossAljba
Other specify
III
3x40m1
loom
2501ii1
250 ml
1OaomI
SaniplŁvolwne
Yle ILCL
1Th103
No Preservative Added
7rpra
Ifapresenrativeisused
Specify Type and
Quantity of Ptesenrative
Comments LuA RLtr vrtseA Ccr1UM t%..v4
nr 11 rrzcc37ccj o$1 imAcr vc cit 1-
StqmcL 4eicu LD Lb O74O1
Mill Groundwater Discharge Pen-at
Ground Water Monitoring
Quality Assurance Plan QAP
Time Gal P71
Conductance /7PH/
Date 2.2107 Revision
Page 40 of 41
Time
GaL.PuryI
Conductance
pH //
Redox Potential Eli_________________Redox Potential Eli
WJH MJSA UEAPllllIJM MuLL
1FIIIIQUTh DATA WORKSHIIIEET FOJ GROUND WATEM
Description of Sampling Event t2r rourtl ie4Lcr M041-sl
Sampler
Location well name Mb Name ad initialt9Litc
Date and Time for Purging 3LiS/o0 and Sampling if different .411
Well Ptuging Equip Used IJiSp or_bailer Well Pump if other than Rennet
Sampling Event Cu4er -tc$tA1L Prey Well Sampled in Sampling Event Mu
pllBuffer7i 7.C pHluffertO
..
Specific Conductance 7uJvJffOS/cm Well Depth 3..S
Depth to Water Before Ptcging_.17L /15 Casing Volume CV 40 Well 3.21 .653h
311 Well .i/A .367k
Conductaftice avg LI 14 of Water avg_____________________
Well Water Temp avg 1414 Turbidity ti
Weather Cond
o.ni
Exti Auth Temnp.prior to sampling event
Time Cal Purged________Dine Gal Purged
Conductance_______________________Conductance
11
Temperature Temperature/
Redox Pot a1 Eli Redoxd1tial Eli
Tybithty Tut4dity___________________
-V
Mill Urea dwa ci Discharge Pern
UreaudwaterMonitoriag
Quality Assurance Plan QAP
Date 11.17.06 Revision
Thrbiditj
Page of 41
Volume of Water Purged
ggping Rate Calcuition
Flow Rate Qj in gpm
S161J _____
Time to evacuate two casing volpmes 2V
____T2VIQz 211S Mi
Number of casing volu nes evacuated if other than two_La
well evacuated to dryness number of gallons evacuatet
Name of Certified AnaLytical Laboratory if Other Than Edry Labt..$rnq oiyt JJes\0W
Sc4 0P
ThIllSiLiS Slle
T$cjn
eleI
uiiieYoe
iSiÆthflidhØr
thiaseeffed
Filtered
Ic4e
Preservative Added
cfrtle
Nutrients
..
WOinl
na
H2SJ4
Heavy Metals
Al Other Non-
Radiologics
t3rossAlpha
ii
i5iYi1f
IWS
.4.
L000ml
tJ HNO3
iCiirvathre Added
12504
Other specify SampI volume
Cx11r rncsrkthtc
IfapreservativeisuSed
Specify Type and
Quantity of Pteservative
Comments
J\n
i-I
Date 2.25.07 Revision
Page 40 of
ATTAMIENT 11
WIHHITE 1SA URM4IRrJM MILL
IFRELD ThUA WOflSJBIIEIET rn GIIWUIMD WATfl
Description ofSamplingEvent trkr Gvathnek k3k
Sampler
Location well name ix3 JI Name sd initials 7tmcr .4
Date and Time for Purging 2-09 and Sampling if different t///4-
Well Purging Equip Used yaufflp or_bailer Well Pump if other than Bennet
Sampling Event ro-iJ c.i\Prey Well Sampled in Sampling Event 11
pHlluffer7.O 7-0 pHBuffer4A 4.0
Specific Conductance IT7 uMROS/cm Well Depth 139
Depth to Water Before Purging Casing Volume 49 Well 4GS7 .653h
Well .36Th
CotIduttitnce avg pLt1Water avg4
Well Water Temp avg .113 R44 1otntiai N9 Turbidity
Weather ond R.-1
Ij Cot43
Extl Amb Temp.prior to sampling event 29 DC
Time Clal Purged Tiips Qal Purged .7
Conductance 777 Conducthnce
pH pH
Temperature Temeraturey7
Redox P7hl3h Redox ntial Eh______________
b4 34idity
Time__________Gal Purged
Conductance_________________________
Mill Groundwater Discharge PerSt
Groundwater Monitoring
QualiSy Msurauce PS QAP
ny-I
edox Potential Eft
jW1JlGmundwaterThscSgePermit Thte IIJ716 Revision
Groundwater Monitoring
Quality Assurance Plan QAP
Turbidity
Page 41 of 41
Volume of Water Purged iektRzaw-Maed
pping Rate Calculation
FlowRate 03 ingpm
SI60 _____33 Time to evacuate two casing volumes 2VT2V/Q97 -U
Number of casing volumes evacuated if other than two_
if welt evacuated to drniess number of gaLlons evacuated //t
Name of Certified AnaLytical Laboratory if Other Than Energy LabsJ\rcr CtAfl tA4 1-4
cfSanuple QthSS
akeu
1ciS
SiSlifie Vohime
StcateiftifliØr
7fljer
1kch
Presenrathre Added
efrele
SiSspecied
VOCs
Nutrients
3x40m1
ltlOml ff4
flcL
%O4
HØavyMetals
All Other Non-
2sflif
250 nil
H1O3
No Preservative Added
Radiologics
OtvssAjilui
Otherspecify
1000mI
Sample volume
H2SO4
If preservative is used
Specify Type and
Quantity of Preservative
ken1 1nrkltA
Comments
Iapha
Rejpic1tial Eli.
Date 2.25.07 Revisioa
Page 40 of 41
Mill Oxouadwater Discharge PesrrMt
Grnundwater Mosætoring
Quality Msuraace Plan QAP
MITACIBIMIIhNT
flIUT1E MUESA V1L41JThIJM MULL
PRELUI DATA WORKSEIIET iFoia GROUND WATER
Description ofSaniplingEvent r4r nctJ b3cir ns4
Samplcr
Location well name 76 NutS and initiaitjLt
Date and Time for Purging ..7-opM and Sampling if different VA
Well Puagiug Equip tJse .Zpuip or_bailer Well Pump if other than Bennet E
Sampling Event r.uaL IrDJw Prey Well ampetl in Sampling Event Mu JI
pflBuffer7.O 10 pllfluffer4.O
Specific Conductance 1fl uMFJOSIcm WelLDepth Lj
Depth to Water Before Puging 7L Casing Volume VT 41$Well 4Q t7 .653h
Well .367k
coadftCtnce atg ct pi of ater avg -ID
Well Watei Temp avgL4 RedoPotendtflh3i.Turbidity
Weather Cou
/U%U41O SivlnlJEJWI Ainb Temp.priorta ampling event aO
Time Gal Purged_______Time Gal Purged
Conductance /7 Conductance ..
pR
Temperature
Eli______________
tj
Purged________
RedyØtc$ialEhL
Time Gal
Conductance
pH
Time_________Gal.Purged
Conductance
pa
TemJW7
Redox Potential Eli
DY
Mill Groundwater Discharge Permit Date 11.17M6 Reviskm1
Groundwater Monitoring
Quality AssurancePlan QAP Page4l o141
Turbidity Turbidity__________________
Volume of Waler Purged Cf
gqg Rate Calculatioi
flow ibte 03 in gpm Timq to evacuate two casing volumes ZIP
5/60 T2V/Q 317 pMn
Number of casing volumes evacuated if tither than two______________
if well evacuated to dryness number of gallons evacntd 41/14
Name of Certified Analytical Laboratory if Other thai Energy Labs vjg
Sk
Ttn
IcESŁ
SSijilaVohnne
SicafeifotkØr
FilEt
IEISe
Presenvnailve Added
nvcfr
von
Nutrients
HeavyMetals
All othØf Ni-
etjw iE4iS
1JOæil
ZSOM
259 in
.-
icy
in
liMo3
NheservathAdded
Radiologics -t
OrossApha
Other specify
6per6j 1rct41t
Ct
1000ml
Sample volume
H2SO4
Ma pseservative is used
Specify Type and
Quantity of Peservative
Comments
c\
-\1U
Attachment
MIII terDischaige PeSt Date 2.25.07 litevisS
roandwaterflintiug
QalityMartWlPlsflQAP Page 40 of 41
ATTAC1uItAllgNT
W1Fffff 1lIffSA flANMJM alL
1FJIIIELJTh DATA WOJKSIHIEET IFO GJWUND WATJ
DescæpSn DfBauupluIIg Event Mp2 mc hwm trL
Shmpler
Locationw1hmrrre PUV /9 Name ad initiaisj2j i%1sier
Date audi TinmfforPurgthg /-2Z p07 and Sampling if different______________
Well PnrghigEguip Used .Juthp or ._jailer Well Pinup if other than Bejiet________
sampling Eveni 44 Prey Well Sarnpcdin Sampling Event______
pfffiuffer7.t 7-O pHBuffer4.0_______________
specificConduelance lOOtS vMROSkm Well Depth 12r7
Depth toWatn1IefoiuPnrging 1O4 ii Casing VolwneV Well i5 .653b
Well .367k
conduetaice of Wafer avg
Well Water Temp avg_________RŁ4fli1$Si turbidity
Weather coatc\c Suun Extl AmK Teznp.ptior to sampling event
Tuuedc2_Sal Purged TnneDgO__Gal Purged
Conductance 4Os5 Conductce IaVs
____________.qg
Tempemtipe_
Redox Poten
Turbidity
/i37
S7O
06
Time æfr4O GaLPurgecLi3.2
conductance tyO 37
PH 67 .d/Z
Temperature_
LI
Redox Potenthfl8h 2-tO
Temperature
Redox Potential Bk 3.35
Turbidity
6-0
Time i592C GaL-Purged 241
Conductance_______________
pH 4.q3
Temperature 12/s-i
Redox Potential Eli_______________
-j
0.9 O-0
jtt1ii-tiroiSwflenst Date IU7it Levizuoit
Quality MaarancePhe QAP
Turbidity Turbidity
Volume of Water flwged When Field Paranjeters sin Measure$L.JL
Page4l o141
flow Itate in gpm
SI6Os _____
Time to evacuate two easing volumes 2VT2V/Q_S 4A-
Numberof casing volumes evacuated if other than two
If well evacuated to dryuess number of gallons evacatÆt
Name of Cerlif led Analytical Laboratory if Other Than Thiergy Labs________
4SaI-.
leVwe/tceE
thssniefikd
0k44
veAdMi1
voa
Nutrients
geavy Metals
An Other Non-
naaioiogics
sAjpha
Otherspecif
1Q
fl .1
Th Ck
5T
lOOml
25otht
zsoæfl
....
1/Iflonil
Samplvolume
YN .-in InN
.R2fl
liMO3
NiieserttiveAdded
112S04
preservative is uaed
SpecifyTweand
Quantity ofPeservatlve
iZLCommeuts-r
arttif %in Ee --sioA
L3-
24 iAtc
ia
/444
----u//tIiAj
.2tL-flo
Mill Gronedvvatei Dischsae Pea-a
Growidwater Monitoring
Qaality Msurano Plan QAP
Date 2.25.67 Patsioa
Page 49 of 411
WHItTlE MIESA URANIIUM MILL
Description of Sampling
Location we1l nanie mIJ slid
ioitiais_7qtv
4-71e
Date and Time for Purging 2/-27217 and Sampling if different_________________
well Purging Equip Used .kip or_bailer Well Pump if other than Rennet 7Ls-z Afy7
Sampling Event flLS4 Prey Well Sarnped in Sampling Event 4W /7
pllfluffeulA id pHBuffer4.O
Specific Conductance/61 uMOS/cm Wc1l Depth
/in otcr7Sts
Depth to Water Before PugingJXJ Casing VoLume 1y Well .653k
311 Well__.367k
Condtttaee avg pH of Water avg_____________________
Well Water Temp avg___________RŁdoic Potential ih Turbzdit3r
Weather Cond $ar7nj ExtI Amb TŁmp.prior $ainpling event_________
thi Purged tiie H.Gal PUrged
CondUctance Condu.T-
pH______________
Tempenitum IC Temperature
Redox Potential Eli 2h Redox PoyÆ
Turbidity Turbidity__________________
Time________
ConducN
Gal Purged________
pH
Tempenitlire
Pndnt PntetitiI
Time Gal Purged
c0aaner..
Teerature
Redox Pial Rh
jouedwaerDisctergePeratjt Date L17.06 Revision
Grouodlwater Mooitoiiug
Qurlity Assurance PS QAP
PnnatIkfrcr
Page 41 sf41
Volume of Water Purged When Pield Parameters am Measure
Plow Rate QX in wan
_____
Time to evacuate two casing volumes 2V
T2V/Q_________________
Number of casing volutnel evacuated if dater than two_
If well evacuated to dryness number of gallons evacutdcL
Name of Certified Analytical Laboratory if Oihefl4hati ergy Labs 3C
Dmffiawli Sit $iie.VubgffloSstsspsns
reki
Wami
fl0
Presetvative Added
fji
VOCs
Nutrients LW
s4b1Mi
109$
yS
..
liCE
iaOt .N
NeavyMetals
All Otis Non-
Radiologics
251Hn1 jt 11t4O IT
NŁhbtjeAddd
...
GrossAipha
Other specify
lOOOml
Sample volume
112S04
If areservative is used
srtfyTypesd
Quantity 6fPeservative
ram...ntq rt 9Ys EflA .4 Lr 4i-r sc-carziuwanitnc
je Sc p-ra 4A-L /A
rr
A.4 RJS tW7r-e
Mill Groundwater Discharge Pesroit
Groundwater Monitoring
Quality Assurance Plan QAP
Date 2.25.07 1evision
Page 40 of 41
Temperature gk
Redox Potential Eli_____________
Turbidity g7.c
TimeL2_Gal Purged J/4g
Conductance 11
pH
AflCal14lllT
WHII MIA UIllA1\IJIUM MILL
PIIIILD DATA WOIIUSET NM GROILThJJQ WAT
Description of Sampling Event A/pu flh.4at J47r
Sampler
Location well name flw 3Z Name and initiais Bct-Pjn.cev
Date andThneforPnrging 2-_ZOO and Sampling if different
Well Purging Equip Uset 41p or_bailer VVellPump if other than Eennet_________
Sampling Event_____________________Prey Well Sampled in $npling Event %k/
pllBufferl.O pllBuffer4.O
Specific Conductance JOJ tVLHOS/cm WJl Depth
Depth to Water Before ing7Z ZZ Casing Volume Well3.e7 .653h
Wlk 36Th
Condftttance atg___________________pH ofWiter avg_____________________
Well Water Temp avg___________MftMS11 Turbidity
Weather Cond.i2 5nv aEXt9 Anib TtmjLprior sampling event
Time lcISO Oal urged Thpe 1/30 Old Purget 221
Conduciaaee 57 Conductance_______________________
pH .5T1 _______..46
Temperature
________________Redox Potential Eh
_______________________Turbidity /I
Temperatuit
Redox Potential Eb__
6DJ
Time /.26J GaL Purged jr
Conductance 9127
.O7
Temperature
if
Redox Potential a_
/4 JE.7
ci
water flkcherge Permit Date 11.17116 Raviaion
opirgdwater lWStcSg
QmiityMsurafleePThfl QAP
Tothiditv
Page 41 of 411
Volume of Water Purged When Field Parameters are Measure
Fping Rate Calculation
Plow Rate in wm
____________
Tim to evacuate two casing volume2V
T2WQ 27wt HrJ7
.//_
If well evacuated to dryness number of gallons evacuatQd_
Name of Certified Analytical Laboratory if OtliertharzEnergyLab
fl
cfrcRe
eVo
thak as speeaf
ISSa
PnesenrSveAdtd
ftfr
VOCs Y%i4S IflN WI YN
Nutrients
Heavy tals
All Other Non-V
11
tOtJml
25GM
250S
DUO3
NfleservatlveAdded
Radiolqgics
OrossAipha 1000nil Ot R2504 ct
Other specify 4SP Sample volume
Ifapmservativeisuaed
SpecifyType and
Quantity of Preservative
LIgients4nc
4epi-I/JJ
Jzni liei -7 F-IfhicS-
/9
t///II0e5b44W1
44 Mr
ctr /6
Ti/c 1/
fr-i2C
151
JVae-S4-
tiL
t-7
Number of casing volumes evacuated if other than two..
aouswater Dischage PeSt JDate 2.25.07 Pevisioa
toundwater Monitothg
Quality Msurance PS QAP Page 40 o141
ATTACJHIIMLNT 11
WNfl MESA UflUMJM MuLL
IIflIIIELED DAT WOJItSJE1UEfl WR GOU WAThR
Description ofSatnplingEvent flpY/I4%JAj
iczoJ
Location well name fl7W 6O amtci initiaIs..gxr gq
nate and Time for Purging _422 06 and Sampling if different________________
Well Purging Equip Useth or_bailer Well Pump if other than Bennet__________
Sampling Event /Z%%Prey Well Sarnped in Sampling Event
pflBuffer7A 70 pHBuffer4l
Specific Conductance /oof uMlLOSIem W4J Depth
Depth to Water Before Purging fr Casing Volume Well .653h
Well .361h
Condtttenc2 avg
Well WaterTemp avg___________RedoiPotenttal Eli Turbidity
Weather Cond Extl Anib TŁmp.pæor to ampling event
tine /2 3L lal Purged Tiln4 Ga Purged
conductance dondttch
pH ___________
Tempenture /ki 73 Temperature
Redox Potantial BhL..2 3-Redox P9Siial Eh_______________
Turbidity__________________Tur4c___________________
Tin Gal Purged_______Time Gal Purged
Conductance Conductance________________________
pH pH
jSwrDAschatgeegmft Date 1117.06 JiteSion
otSwater Monitoring
Qrtiality Assvarance Plan QAP
TSiditL
Page 41 of 41
Voliwne of Water Perged When Field Parameters are MeastiS________
gjgCakon
Flow zte in win Time to evacuate two casing volumes 2V
T2V/Q
Number of casing volumS evieuated if other than two
If well evacuated to dryness number of galloiis evacutS__
Name of Certified Analytical Laboratory if Other than Energy Labs
gun
7dii
IthIy
j$$Ie Volume
tt1tith
liS.ispeeWe
ipew
Filtered gyMdS
Islit
VOC tm tH
Nutriets 4iV loolni
dt
It$O4 .Y
Heavy Metals
AU Other Nan-
259 bit
25Gm1
lIMO3 Ct
NoPres rvative Added
Radiologics
Gross ipha
Other specify
Y009ml
Sampli volume
112S04 jC
ii petive is used
Specify Type
Quantity of Preservative
commea4viv-/72
tA -r 12C
tr
will C-roSwaterDiscIwrge Perroit
Grnyrndwater Monitoring
QmliW AssurancePlaaQAP
Time Gal Purged
Conductance_________________________
Date 2.25.07 Revision
Page 40 of
Time Gal Purged
Conductance__________________________
nil
Temperature
Redox Potential Eh_
WIIIIIITIE PJIIIllSA lLJliRA11IIUM MILL
IFJIIllIUID DAT VITO 1PDR GWUI1TIJ WATER
Desctiption of Sampling EventL42flfi _lvotivw IAJ%
$bpler
Location well name /IWJ 63-Name mid initials it
Date and Time forPnrgingS 22 7Ozi and Sampling if different_______________
Well Pursing Equip Uset or ...jai1er Well Pump if other than
Sampling Event_____________________Prey Well Sainped in Sampling Event______
pilBufferl.O pilBuffer4.O
/ØOt
Specific Conductance 1/fl nMffOSIcm Well Depth
Depth to Water Before Purging_...Casing Volume 94 Well .653h
Well 361k
ConducSnbe avg___________________yH of Vater avg_____________________
.s
Well Water Temp avg___________neaeiiMthiiffi S@ Turbidity
Weather Cond._Extl Amb Temp.prlor tcampling event
limec GaL Purgd_______t$xte---Q41urged
Conductance Conductance.
pB pH
Tempemnre Temperature
Redox Potential Bk_______________Redox Potential Eli_________________
Turbidity_________________ Turbidity___________________
Temperature
RedoK Potential Bh
C-
6hl oaSw iseSgePerreft Date 11.17.05 Jftevizioa
ao1bakoSg
QuaLy Assmence Plan QAP Iage 41 o141
Turbidity________________Turbidity__________________
Volume of Water Purged When Pield Parameters are Measured__________________
Plow Rate QJ in gptn Time to evacuate two casing volumes 2V
T2V/Q___________________
Number of easing volumes evacuated if other than two_________________________
If well evacuated to d13oiess number of gallois evacud________
Name of Certified Analytical Laboratory if Other Than Energy Labs
Se SIkxgSSL
jple3iohsmeSkSttSs-fla
Fiftereall
1k4æ
pvntiveAdde
fcfrt
VOCs
Nutrients
Heavy Metals
itlOmi
25Ukh1
HCL
Rz$O4
0N03
All Other Non-
Radiologics
2501n1
.y
NSiesŁrvÆtivŁAdded
GressAipha
Other specify
1/JOmI
Sauqt volume
R2S04 Cii
If preservative is used
SpecifyType and
Quantity of Preservative
Comments
Sn712 /ir
Attachment
Mill mdwrDlsthaggeWjirak 2.25W gtma
l3nundwtec Monitoring
QAsainrancePlanQM re49of 41
AnAcJBJMRLP1n
W7HII1T SA UWiIIIUMMflWORURGJWtJNffJ WMflER
Description of Sampling EvSt fc i-k ohj cr0 usvJ \iJ4c
Location welt name Muj J4 _i iua1flicr TL-
Date and Time forHPnrging.fr-pq nndSaup1lngfif different
Welt PutgbigEqnip US or_bæller \W if other than BennetLLEt1
Sampling vent
iAon4by
rie_$Wdlt in SiLjL
pftBuffer7.O tO p1$r4$QO.
Specific Conductance nMLIOSicm ___________________
Depth to Water More Ptnghmj Q4 pL taSlgYthme 014 Well ui 65fl
-3 Wethvizs__361JO
Conthfdtuceair 4O5
Well WaterTemp avg 14 8C flubid$y
Weather Court Fios sn1
Extl Sb ttnp $orto sampIw evehtL2I
Tn$Ot Mt Parget -j flntfr 14t\qal 1urgedfl
condctance 4T1
pH________________-q1
Tempenure 1I5c
RedoxPoktjatEh RnlloxiPotenftalEh ma5
Turbidity Tutbiffity_______________
Time i$GaL urget aIMS meimssGal.Purged iKQS
Conductance_____________________________
plL_4 pl _____
Temperature II ThkqrnrEjiire H-MI
Redox Potential EhXL3L______ReUwPotential Eli Th2
______
JJJSwaterisSrgePeiSt Date 1U7iD6 liSJSt
Qneawencenan QAP Pago4l of 41
Volume ot
in grn
W6O ______________
Tine to evactwte two cnnin volnings 2V
T2V/Q yr Mn
NmberoT.essing volnth rnuaS ther than twOL
If wellcevauwted to dryness number of gaiion ŁcÆC
Nsme ifCeitifled Analytical Laboratoq itOieLtti4
Łg2O trrxcr 1LlLa4 prcseiJ
_eLent Purrc Pcacckn ch%u1Q
41 tAnukŁ P.ae tfluied_AAM1
Comments
1uec O%flŁ SonjM
uAi nr
\s3IctC Gpr-tRnraLtoA t%C
____________
Mill 6wulltWBtCI 1UISCS0C Pexndt Date 2.25.07 ReSiou
otSwater.MStoiiug
QIMP1Nfl QW Page 44 of 41
flAC1HIMIINfl
WIIITIE II4ULtSA UPSNINM MILL
JU1 DATA WO S1HHTfl10t GMOIJIkflth WATh1
DescriptioliofSaRnplingEvet tVwtc Mr.n4L4 rou4 \iJcr
Rc.scnnpIC
ghmpler
LocationWellname_________________NamØandinitials hnrer P01U1.-t1
Date andTimelorPurging 6-17-os and Sampling if diftŁrenti
Well PurgiEqnip tlse lputhp or_bailer Well Pump if other than Bennet
Sampling Event tDn g4y Prey.Well Sanjpied in Sampling Event
pHBuffer7AO tO pflBufferti 1.0
Specific Conductance qg uMHOSIcm Well Depth 12S
Depth to WaerBefore Purging 103 Sq Casing VolumeV Well .65Th
Well iiiflX 367h
CondaSuceavg 11OG plofWSeravg _Sg
Well Watetienp avg jq .g RI TAklity
Weither thud Oo c1-LAs4 Extl Auth TŁmp.priorto ampling event ao dc
LFUrged 11Th
CondUdance L07 ConductnnceSt
pff__L5 _____________________
TempeulS ILM Temperature I4.5
Redox PotntW Eh_3Pt Redox Potential Rh 34
Turbidity__________________Turbidity
Time nUS Oal.Purge.2L1c Time plan OaLPtqed XH
Conductance Conductance
51 PH
Temperature_B fl Temperawre_4L6
Redox Potential Eli b7 Redox Potential Eli 33
Iucb L/
-a
Mill 6r water Disvbarge Pest
QSJsu1aacePS QAP
flte 1i.17O6 JIteSS
sa
Page 41 of 41
bioSj1ate Calculation
Flew Rate fin gpm
S160 -33
Time to evacuate two casing valuates 211
T2V/Q Jfl
Number of casing volumes evacuated if other than two_
If well evacuated to dryness number Of gallons evaeufrtd j4
Name of Certified AnalytiCal Laboxatoiy ffOtherthSEny Lahsaz//k
IllSMt
SiihideVchae
fJnqwateufJVw
hS.iIspØeifls
bY4M
___
theM
PreservatfiveMlded
1tM
VOCs
Nutdents
ji %t1jj
100 ml Hz$04
lvytals
AlL Od Non-
Radiolpgics
Gross Alpha
Other specify
2S1H
1000 nit
Sampli volume
flHO
NoPtsŁrvÆtheMded
112S04
Ifapresenrativeisuse
SpecifyType and
Quantity of PesewaUve
otai tC Scril-auraComments_ur-----v-----..--.-
dftk M%fllpIiMAg souitpk p.adals
Pceo earA4 gJr Uocul
CteoC
uccn$si.oM 4jA
bakcn Ł oiik Lci 1k
Miil Grour4waerThscSgatesiwit 2.25i07 Jfr.vMium
UroaadwSr Meaicthag
QAtnceRiIanQM1 Page4Do141
AflM21HffNfl
UERJH MESA 1tJWHUM II4IIIILL
1FII1EJftTA WOR IE3OR GROU1T1D WATEM
Description ofSaftuplkgEvS TisAc.Mo4k1 reowiA V.J-cc
Locatienwehllnaiie MU ISisiidtitia1rJZeicg-t1
Date and Time forilPurging 5QjandaniffliagifdifferenQ_
Well PusgEquiptrseil .Ljjui oz.jaJfer \WSmp if oilier than Bennel Efl
SampliiigEveiat tne M04bl.3
pllBuffer7.Q 7.0 iiJrQ
SpSfic ConductanceA4L.pMflOS/cm WIIDEptb J.I
Depth to Water Before Purgirg J3 taAigtÆbme114 WelL AMM .65314
Well 36Jh
Conduttitithe avg si
Well Watei Temp avg_ThJ ŒW41b11PY4 Turbidity
Weatther Cond
Fk15 SLL4tc%
Exti i\nib Ifr
Time clal Purge iThp___--
IIduC 7.1
______________
Temperatqe Tenwemtnre/
RedoxPotexualEh i-Red9iie1Eh
Turbidity _J PÆiiLllty
Time Gal Purged______Winie GaLPutged
Conductance Condiatztuee .7
p11 pTFI
Temperature Tenilnrauy/
Redoic Po atial Eb________________Redjtential Eh________________
..
JMrillwatethiscSge Pe4St Dart i.17.OS JitSaiirc
QEalftanffancePka QAP Page 41 141
Volwne onVater Parged
yjpjgbte Calculation
2fiad4lt SlEW
fltv
S04thht4P
Ylfltentd Preservative Added
Stsnecnfl4
VOCs 7ryw
T5
Nx4iæt net
Nutdeæts
flpavjrMetls
001 Nmx-
lOOml
2StæM
Siol
YI
1I
UO4YN
11K03
SthSÆAMth
Radiologps
ossAtpha LOfIQn flaSO4
0therspci SawpŁvolumd 11
ii zied
Sieclfy Typ and
Quantity of PSevtive
FLoflaWQA in gpit
3/60 ________
Time to evacwe two casing voIunts 2W
T2V/Q AA
NumbeKok1nsmgvolwuea SSSd iPiII than two 4J
Mweflewiufld to dzyness9 imniber jonIcUiIdd AJ//
Name dWethtled Analytical Laboratory if QthSTISThiergyLÆba A/M
I.
pctsnvic\zes ictYcn
Mill GIOUSIVRter Dische Peraaft Date 2.25.07 Revlsioa
iGrotwdwatcrlVlStoring
QSity Msaraaie flea IMP Page 40 of 41
AnAwifiaNT
WiHuirI 4IIA EJIIMJJIIJM PVIIIIILL
wRflITh IDATA WOILSJWEET FOIR GROUIJIL WATER
escuiptionofSamplAngEveat J5t j4p$kto rrowh t\sLt
hmpler
LocationWeIIsame Mu NaffiØaidinithls.2tn i4
Date and Tinielbr Purging c%and Sampling if different vi
Well PmgiqgEquip That ...jurnp or_.bailer Well Pump if other than Bennet.s
Sampling Event 1$ttn bMIk flvv Well jj Event______
pffBufferl 7.0 pHBuffer4M t4-O
SpecfficCoatketance luMJLOS/ein W1l Depth 121 SZ
Depth to WterBefoze Paggiug %3 Casing Volume flY Well rn .653k
31t Well .367k
CoadtiØtgace av4g .-s pH 4f Water avg -7
Well Water Thng avg .3 to idity
Weather ConiL Chnrcci.Extl Mali TØmflprior ainpling event
Tune cxng Cal urgett_______TiUte Gal Purged
Coidudapce.35t3 Conductance.____
.67 ____
Tempeniture Is .3
Redox Polential Bk qL
Thrhlditv fl
Red3ial Eli
7rhiulitv
Tem/ie Temt
dox Potential 4Eh______________Rdtt Potential Eli
Mill Qon wSThSge Permit Date 11.1716 RevMon
Gclwater Mouitouiog
QuS AsmrancePS QAP
TurbidiVj Thrbidiltv
Volume of Water Purged When ield Parameters are Measurect
Page 41 of 41
FlowIeQ ingpa
A-SI6W
Time to evacuate two casreg volumes
T2V/Q v/A
Nunibarnicasing volamS evacuated if other than two_
If well evacuated to dryness number of gallons evacuitt fA
Nameof Certified AnalyticalLaboratory
Zvns ES $gl e.VtuOiatWt
Sspee1fled
III1arQIJ
SIc
PreaervaSoA4
IsljS
--
VOCs Y--b lift
Nutrients
Heavy IvIetals
Aif otheŁ Non-
Radiolos
OrossMpba
Other specily
100 ml
250i111
iotioS
Sample volume
LJi
H$O4
NiMiervÆtiveMdŁd
--
112S04
Tin preservative is uterI
Specify Type and
Quantity of Preservative
Comments Pkrc hA S\t a-Mæ taisitr UnLj prcscJ Ior
t-..AflL.%itA sek-
.wpI4 takc i-oei
ot rAmL kc
L41 4.Loc%14S
\Arkr uo.s dcwhu akgscf4
WJEIIRT WIES4 TQIflIkIJMJM EIILLL
IIREUJLMTA WOL MIIEWOR GIIOUMD WATE1
Description of Sampling EvS T3T jA rrnu.ricX vjiŁcc
Location well naS f\M1Jfl dithda1rtnr
oIUtj 1T1
Date and Time forPurgbigJ 3-OS andfSangfif different
Weill Purging Equip UsØti 4jjij orjiiler if other than Bemwt
samplhigEventffitnt
Aorv\bl P9.WJIiawpcdn $iEv.tM2C
pflBuffertO -ii a.
speSic Conductance 14 uMELOsiprn W4pP
Depth to Water Before Puirgh 77 cuixris WelLS if cosJlo
...3WelL WA agi
CondiIthnce aWg -4174 ii
Well Water Temp avg nea4io%tii$f1iia3 1iirhidity ZLc
Weather Cond Mo4 Extl Anib Tenp ptipr to sampling event 2c
Tune Ifl5 dal urgeff JtL 9a1 Purge VS
Conductance L1q CndI%ctflee L1185
CII ________________
_____________nwerntze_______________
__________RiitialEh
__________L7
Tempen4Ite SJ
RdoxPoi Eli
Turbidity
Ss a09 Gad Purged L4 15
Conductance t4 S7_
pRCDU
Tetnparatuie_4J_3
ReAnw Pntentit PIll
TimeJ_
ConUwtsnce
GaLPurged LS
L1I
I9_
Mill
thrnuidwawr MouitoSg
Quality Assgnrance2lau fl
Date 2.2W ashm
flge4Oof 41
TenpflUm 1S03
RthtuPaitinl ifihI
jrt
.1
jRterDisSrgeftSi Date IL LIYJ%liteJca
yhnrscePka QAJP JIage4l of 41L
TSidkLr Toiity_________________
frCalcua
VtowEteQ ii gpni Time to evacnatMwo eatgyolwnes 2V33T2VIQtgAAP
NumborofrMsiug votuui evituated flther than two
if well ceicnMzd to dtyness number of gaI1o ŁaeUEtdd aj
Name cfc ifIedAna1ytica Labni-atosy ffOthertiÆBnei-gyLt 4/
thet
daflt
tiStifl
Aic
ji
nJ4dde
--U--
VOCs YN 3i4OnI TN --act
Niitriflts XN iOOÆ.TN .$aSO4
Icafl MetAls
tat Othi Non-
OPt1t 2501n1
ISthth
HUG3
Radiohgjqz
GmssAIplii
othEepevij
-.L ..
1OQOuil
SanpŒvo1urne
nso4
ffapmservntivcisvhe4
SpeciIscrytic and
QuantftyofPzØivtive
Comments risrucu Dit SC pkC3 oytfltr JloIltOCt4 o-or
pMtkc .nmn cn Pi1nic t-ceckc\oAMjs
LSeU 1orjna Mp4l Rne kiwS
Scuni c\cci L1 sa-
jJceS JDW1kft3t\cotot-vMo1 a-s4 bec%dhtt4t.1c-
1iDXhe P4$A 3nvk tuAkacMvie ha dpwAS
Mill C-remitvater Disthafge PeSt Date 2.25117 Aevisian
oundwaflonitoriag
Quality MnramceThn QAIP Page 49 of 41
AflACffMIIENT
WJHIRTLE 1MHSA UaANIIUM MILL
liTlflhiiUil DATA WORS1HIIFLET FOR GROUND WAT1R
DcscæpiiondSanipilugEvent tt yrowi Uo.\cr
JSnavidiname 3D inanncr
Date andTime for Purg ng.J2i7 Oti and Sampling if different vrn
Well Pwingilquip Uset jjminp or_bailer Well Pump if other than BennetL.S
SanipligEvent nk C\r Prey Well arnpIed in SaniplingEventii_a
pliBuffert 7.0 pllBuffer44
Specific Comluctance OMUOSIcm Wll Depth
Depth to WntBeforePurging 77.1 Casing VolunieV Well LSLJ3
Well Aflfl 367k
CondUSnnnavg 4143 pRof WÆerav 13
Well WatefTenip airg 14 55 Redox Potential æh4$Torbithty jC3
WeatherCoad-0trtaA Bxtl limb Ten.pt4ktamplingevent
Tune 1030 .-lid Purged MR.W44 Titus.1106 Gal Purged 145
Cohdctauce 141 j.S Conductance 4119
p0 J5 pH
Temperature 14.S Temperature LM
Redox PoMilal Eli 241 Redox Potential Bk gg
Tuthidily_3..S TjI4Jjt1Jy
TiineuilGaLPurgeLt5 Time..od Gal.Purged J.3
conducanct1 -f4-tMl 4147 conductance LI7
pH Q2e GJo
Temperatnit 4M-ASSi 14.4 Temperature 14
oxPotsufJh pftM i1 RedoitPotenthl Eli
ii tr6 5.4_______
GonSwater Discharge PeriSt Date LI 7.06 Pevisien
Groiwater Monitoriag
QnaliWMsQlirauCe Plan QAP Page 41 of 41
Vortamo of Water Forged
TIIMdiT
Row IWo 193P ft gem
3/60 _____
Time to evacuate two casing volumes 2V
T2VIQ 11R
Numberof casing volumes evicuated ifother than twoj
If well evacuated to dryness number of gallons evacnatEl.._i/iA
Name of Cedified Analytical Laboratory if otherthan nergy Labs t.vm
tzrnc AIoht JCtn
IScSifdther
tiiSii spedlied
vocs
Nutrients
HeavyMetais
AD Othhz
Radiologics
Non-
fi
loOm
250W
25Dm
pr
IICL
flKO3
Na Weservalive Added
GwssAtpfl
Other spbcir 33
l080æiI
Sampl volume
IISO
If preseivative is usc
Speeit3r Type and
Quantity of Ieservative
OammentR Aern.k t.jp eJr oO
Spino Cscn tirc 0k toso iProte4 iclIMtPut-ac gjAnk a4 th sc\mQks .Sr11ecai MeUist
CnntrilaILAbL Prcsn4 2%t QwcIC
S-..J inqJtrLkAU9 cearct.1%i4ast fr.cfe
t.3tW t4%a%r6t DJflbitCs
Mill erDisthage2e-S
GoundvMonnothg
QeateyJSnrceP1an QAP
AflACllIIWENT ii
W1F1UIJIIE IW1SA IFJRANIIUM 1MIIILL
FffiAI1IThATA WJIKSJHIIZET7OM GMOIIJND WMfl
DescæpQionofSanflgEventtnt 4L rAJ ..Oct4c
Sansler
Locationen4lname pj3 NamæUdinitialt_JanAcr 1LJ0 it It
Date and TiineforPurging S-pq and Sampling if different rt//X
Well Pnn.gEqidpiThet ipnrup or...jÆller Well Pump if other than BennetjA4-
SamplligRvCtnt nnJ DAr Prev Well Sanped in SampJio.g2ventSL-
pRBufferfl pliBuffer4O .O
Specificeonductance Well DepE_____________________
Depth toWtezBeforePlggin t//L Casing Volume Well 1v A553h
Welt A/4 .367b
Coadu ice mg_________________pfl of Water avg___________________
Well W1tertenw avg________tIth Tinbidity
Wedther tend.
SiM
Extl iImb Ternp.plor to ampling event
Time rs 1aI Purged_______Thue Gal Purged
CondcSote L3 conductance_______________
pH_____________pH
TemperthutC C3 TemperathAe//
Redox PatenialEh VSb Redoxhtial Eli______________
TemycZ
-loxPotential Eh
Date 225ff 1teiisioa
flge4O of 41
Time OaL.Puc__
Conductance _____pit
ff-SwaterDhdwrgePeriS Dac HItOS itevkiwt
GruaSwa%r NO2nta1
lPage4I of 41
Turbidity________________________
Vtued Water Purged When Field Parameters are Measured V//3-fl
Plow lInte 0P in gpa Time to evacuate two casing volumes 2W
_______________T2WQ A2/4-
Numbenffcashig volumes evacuated if other than two____________
If welt evacuated to dryness number of gallons evacwiMd J/14
Name ofQnifled Analytical Laboratory jfotje timi Eiy LIIIS_Ja
SSk
te
SeVume
SkafrSdlliØrSÆict4Sª
7JlterS
frd
veAfe
si tiN
Nutrienis
gyitSs LVN 10Dm
25GW ION 1103
All OilS Non-
Radiolo_gics
iirossslplm Or
25Dm
1011Dm fix
NSsŁrvitiveAdded
H1S04 tj
Otherspediy Sample volume
If preservative is used
Specify Type
Quantity of Preservative
Comments 4tcc\
npIiM
atn V\145 L44
%5 rtinrr 4jiJau
tfernrLtr i3w i\
J.Q Li
rcsttn
flgp
Mill Groundwater Discharge Permit
Groundwater Monitoring
Quality Msurance Plan QAP
TernperMdC
jPotential Bk
Date 2.25.07 Revision
Page 40 of 41
WIUIETIE MESA KJPA1kl1IlIJM MuLL
FIIELJID DATA WOR1KSEIIET FOR GROUND WATER
Description ofSarnplingEvent ff4.nc M0ki Grow$-L\4cr
Sampl
Location well name jky Name and initials -it.146
Date and Time for Purging L-17-pq and Sampling if different qt
Well Purging Equip Uset or_bailer Well Pump if other than Bennet.up
Sampling Event Lac 1cAC Prey Well Sampled in Sampling Event tlta
pFlfluffer7.0 7.C pHlluffer4.O 41
Specific Conductance Ig7 uMHOSIcm Well Depth
Depth to Water Before Purgingrnt-Casing Volume Well jiA .653k
34 Well n/rn 367k
CoidtiŁtance Ævg pnptwater
Well Water Temp avg 21 SC Re4x1wndal .taiFurbidity
Weather Cond P64 LloMM
Extl Auth Temp.prior to sampling event
TimeJac Gal Purgep oar
Conductance .3 Conductance_____
pH .72-PH_________
Temperature 2%
Redox PotentiatEh
Turbidity
Red$itial Bh________________
2Iidity
l2
Time
Conductance
Gal Purged ...Time
Conductance
GaLPurged
pH_pH
Tempr
7otential Eh
LaIafr
Mill ironedwater Discharge PerS Date 11.17.06 Revision
otmdwater Moahoring
Quality Assurance Plan QAP Page 41 of 41
Tusbidity_Turbidity
Volume of Water Purged When PickI Parameters ate Measumd________________
ing 1te Calculation
flow we 03 in gpm Time to evacuate two casing volumes 2V
S160 AJIEk T2V/Q_______________
Number of casing volumes evacuated if other than two________________
If well evacuated to dryness number of gallons evacuated
Name of Certified Analytical Laboratoiy if Other than Energy Labs /A
ThiutSiiiS IiRS
Wscns
MS4
8ihit Vohonne
ujn$jcati1foflØr
thth1anspeeWd
beRowi
Filtered Preservative Addled
ci
VOCs 340rn1 ICL
Nutrients
HØavyMetals
All Other Non-
Radiologics
Gross Alpha
Other specify
Yj QSiJV
bj
10Dm
2SGiiil.
250 nil
1000 nil
Samplvolume
Sf
H2$04 .Y
liMO3
No Preservative Added
R2SCk
If preservative is used
SpecifyType and
Quantity of Preservative
commensArrhek
4tmpks
rI I-4 42O
Ttkcj a4-jL3Q La 14
1Xcn
eJ ygqp
En BLAY1
Mill Groundwater Discharge Permit Date 2.25.07 Revision
Groundwater Monitoring
Quality Assurance Plan QAP Page 40 ot 41
ATTACHMENT
WHUI MESA JRANliUM MuLL
FIELD DAT4JTORKSHEET FOR GROUND WATER
Description of Sampling Event tk nrnek 13tr
Location well name iau G5 Name and initialsty er 14 0Lt1 1ti
Date and Time for Purging MW-and Sampling if different
Well Purging Equip Usect Xpnmp or_bailer Well Pump if other than Bennet OfCJi_
Sampling Event 3nj GWW\u3SC Prey Welt Sampled in Sampling Event______
pllBuffer7.O pHBuffer4.Q LIO
Specific Conductance qj uMHOS/cm Well Depth
Depth to Water Before Purging 114_Casing Volume Well .11 .653h
31 WeH .36711
Conduthtnce avg 4t7U pH of Water vg C-1
Well Water Temp avg 14.79 RedÆxPotential Turbidity
Weather Cond kkeA\
Sii7Extl
Ainli Temp.prior sampling event 2C
Time Gal Purged_______
conductance________________________
Time Gal Purged
Conductance
pH
Teniperatur/
Redpaintial
Eh____________________
t1ibidity
pH
Teniera/
Re9rtential Eh
Turbidity
Time__________Gal Purged__________Time___________Gal Purged
Conductance______________________ Conductance________________________
pH
TempetatIt
pH
Teinnp.r%
dox Potential Eli_________________ox Potential EhL_
Mil1-lwuudwater Discharge Permit
G-roundwater Monitoring
Quality Msurance Plan QAP
Date 11.17.06 Revisioul
Page 41 of 41
Thrbthtv Turbidity
Volume of Water Purged
ggpjgg Rate Calculation
Plow Rate in gpm
5160 _____
Time to evacuate two casing volumes 2V
T2VIQ I3g
Number of casing volumes evacuated if other than two_
If well evacuated to dryness number of gallons evacuated
Name of Certified Analytical Laboratory if Other Than Energy Labs_t2f/
pc of Sample Sahmle
Taken
Tejtcle-
SSUle Volume
Indicate II other
thtÆ as specified
below
Filtered
circle
Preservative Added
circle
VOCs 3x40m1 YN JICL YN
Nutrients
Heavy Metals
All Other Non-
Radiologics
100 nil
2sGihi
250 ml No Preservative Added
Gross Alpha ft 1000 ml H2S04
Other specify Sample volume
If apreservative is used
Specify Type and
Quantity of Preservative
cJTh
uv 7Lcc
TemytC
/1lox Potential EhioM
Mill oaar1NschargePe-mit Date 225.07 lleSioa
romundwaterBonitoSg
Qna Ms raae.flan QAP Page 40 of
AnACIHIIIAIIENfl
WWT1EIMIff1SA11JJ1L4NHUMMffLL
1FRIIUD DATA WORSiliIIEET GWUND WAThM
oescæptiosnifSsupliagEvent_Yi.MogL1 r0k v3cjtr Wt
Saler
Location wØlln ei_.bia .S Nani and initialt n.tr
Date and TimeforPurgitg L..17-p3 and Sampling if different
Well njrgiqgflquip lLJsetF jpwtip or_bailer Well Pump if other than Bennet
Sampling fo4.AAJ
Łt Prey Well Sampled in Sampling Event pv
pllBuffert 7.C pllBuffer4.O g1p
Specific Condvtance tl uMUOS/can Well Depth
Depth to WaterMorePwgingill Casing Volume Well 9LiTh .653k
Well 4//Pr
Condtictdnce Æg LI pH of Wafer avg
Well WaterTemp avgJ 5S Redox Poteiflal iS ICi 12ur1mdity ii
Weather ConLf3 cr Exfl Mit TŁmp.pripr to sampling event 1$c.
Tme Gal Pnred Time Gal Furge4
Conductancepn
Temperatlm7/T TemperatureZ
Eh_______
Time Gal Purged
Conductauce__________________pff
Time GaL Purged
Conductance
pH
xrotentaaltTh______________
D\ce
Jgil-CfirnSwargeerS DS 11.17.06 Itevisioa
ovarlwr MaiSSg
Qawiity MsureacePlsa QAfl
VLLfl4flJ Turbidity
Volume of Water Thirgcd W1kfiWJ42a4aokS.MŁsaS
gpJngRte Clc4idon
Page4l of4l
Now Rate QJ in gpm Time to umeanate two casing vokantes 2V
T2VJQ21CL Mat
Number of casing voluinth evacuated if other than twoj ax La
if well evacuated to diyness numberof gallni evacuatit U/I
Name of Certified Analytical Laboratory if Other Than Energy Labsjvf
2tLSt iSith Siiyi.e
dStŁifbthØr
thSieuŁciUea
Filtered PersenaJflddcd
ØSfe
VOCs t14 ...
s4oiirli YN Y.N
Nutrients
Heavy Metals
AU Otbek Non-
Radiologics
GrossAipha
.N
IC 14
iomi
250W
250 nil
U$J9nl
IC
.-
.1125.04
0403
NopreieflitivtMdbd
112504
Other specify IC Sampl volume
If pmservative is used
Specify Type and
Quantity of Piesenvative
Attachment
ENERGVLI4BORA TORIES INC 2393 Sail Creek Highway 82601 P0 Box 3258 Caspe WY82602
____________To/I Free 888.235.0515 307235.0515 Fax [phone] casperenergy/ab.corn wwwenergylab corn
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 05/27/09
Project Apnl Monthly Groundwater Collection Date 04/22/09 0936
Lab ID C09040844-001 DateReceived 04/24/09
Client Sample ID MW 14 Matrix Aqueous
MCL/
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
METALS DISSOLVED
Manganese 2380 ugIL 10 E200 04/28109 00.09 sml
Uranium 62.0 ug/L 0.3 E200 05/01109 0150 sml
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
LASORA rornEs
Client
Project
Lab ID
Client Sample ID
Analyses
METALS DISSOLVED
Manganese
Uranium
VOLATILE ORGANIC COMPOUNDS
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
Methyl ethyl ketone
Methylene chloride
Naphthalene
Toluene
Xylenes Total
Surr 2-Dichlorobenzene-d4
Surr Dibromofluoromethane
Surr p-Bromofluorobenzene
Surr Toluene-d8
Report RL Analyte reporting limit
Definitions QCL Quality control limit
ENERGYLABORA TORiES INC 2393 Salt Creek Hiqhway 82601 P0 Box 3258 Caspei WY82602
Toll Free 888.235.0515 3072350515 Fax [phone] casperenergylab.corn www.energylab.com
LABORATORY ANALYTICAL REPORT
Denison Mines USA Corp Report Date 05127109
April Monthly Groundwater Collection Date 04122109 1010
C09040844-002 DateReceived 04124109
MW 26 Matrix Aqueous
MW
Result Units Qualifiers RL QCL Method Analysis Date By
1260 ug/L 10 E200.8 04/28/090016/sml
274 ug/L 0.3 E200.8 05/01/09 0210 sml
ND ugIL 20 SW8260B 04/29109 1841 /jlr
ND ug/L SW8260B 04/29/09 1841 /jlr
ND ug/L SW8260B 04/29/09 18 41/jlr
820 ug/L 200 SW8260B 04/29/09 1804 fur
ND ug/L SW8260B 04/29/09 1841 /jlr
ND ug/L 20 SW8260B 04/29/09 1841 /jlr
33 ug/L 1.0 SW8260B 04/29/09 1841 /jlr
ND ug/L 1.0 SW8260B 04/29/09 1841 /jlr
ND ug/L 1.0 5W8260B 04/29/09 1841 /jlr
ND ug/L 1.0 SW8260B 04/29/09 1841 /jlr
106 %REC 80-120 SW8260B 04/29/09 1841 /jlr
101 %REC 70-1 30 SW82605 04/29/09 1841 /jlr
98.0 %REC 80-1 20 SW8260B 04/29/09 1841 /jlr
990 %REC 80-1 20 SW8260B 04/29/09 1841 /jlr
MCL Maximum contaminant level
ND Not detected at the reporting limit
PG
LAbORA TORIES
Client
Project
Lab ID
Client Sample ID
Analyses
METALS DISSOLVED
Cadmium
Iron
Manganese
Nickel
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn
Gross Alpha minus Rn Precision
Gross Alpha minus Rn MDC
Report RL Analyle reporting limit
Definitions QCL Quality control limit
MDC Minimum detectable concentration
ENERGYLASORA rORIES INC 2393 Salt Creek Hiqhway 82501 P0 Box 3258 Casper WY82502
roll Free 888.235.0515 307235.0515 Fax [phone] casperSenergy/ab.com wwwer7ergy/ab.com
LABORATORY ANALYTICAL REPORT
Denison Mines USA Corp Report Date 05/27/09
April Monthly Groundwater Collection Date 04/22/09 1215
C09040544-003 DateReceived 04/24/09
MW 32 Matrix Aqueous
MCL/
Result Units Qualifiers RL QCL Method Analysis Date By
2.9 ugIL 0.5 E200.8 05/01109 0624 Its
8250 ugIL 30 E200.7 05/04/09 1433 rdw
6180 ugIL 10 E200.8 04/28/090022/sml
62 ugIL 20 E200.8 05/01/09 0624 Its
2.0 pCi/L E900 05/15/09 1131 /cgr
0.8 pCiIL E900.1 05/15/09 1131 Icgr
0.8 pCi/L E900.1 05/15/09 1131 /cgr
MCL Maximum contaminant level
ND Not detected at the reporting limit
Pfly ENERGVLABORA TORIES INC 2393 Sail Creek Hiq/iway 82601 P0 Box 3258 Casper WY82602
____________Toll Free 8882350515 3072350575 Fax [phone] casperenergyIab.com wwwenergy/ab.corn
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 05127/09
Project April Monthly Groundwater Collection Date 04/22/09 1235
Lab ID C09040844-004 DateReceived 04/24/09
Client Sample ID MW 60 Matrix Aqueous
MCLI
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
METALS DISSOLVED
Cadmium ND ug/L E200 05/01/09 0631 Its
Iron ND ug/L 30 E200.7 05101109 16.15 Irdw
Manganese ND ug/L 10 E200.8 04/28/09 00.291 sml
Nickel ND ug/L 20 E200.8 05/01/09 0631 Its
Uranium ND ugIL 0.3 E200.8 05/01/09 0631 Its
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 03 pCi/L E900.1 05/15/09 1333 cgr
Gross Alpha minus Rn Precision 0.5 pCi/L E900.1 05/15/09 1333 cgr
Gross Alpha minus Rn MDC 08 pCi/L E900.1 05/15/09 1333 cgr
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 SW8260B 04/29/09 1726 /jlr
Benzene ND ug/L 1.0 SW8260B 04/29/09 1726 /jlr
Carbon tetrachlonde ND ug/L 1.0 SW8260B 04/29/09 1726 /jlr
Chloroform ND ug/L 1.0 SW8260B 04/29/09 1726 /jlr
Chloromethane ND ug/L 1.0 SW8260B 04/29/09 1726 /jlr
Methyl ethyl ketone ND ug/L 20 SW8260B 04/29/09 17.26 /jlr
Methylene chlonde ND ug/L 1.0 SW8260B 04/29/09 1726 /jlr
Naphthalene ND ug/L 1.0 SW8260B 04/29/09 1726/jlr
Toluene ND ug/L 1.0 SW8260B 04/29/09 17.26 /jlr
Xylenes Total ND ugIL 1.0 SW8260B 04/29/09 1726 /jlr
Surr 12-Dichlorobenzone-d4 102 %REC 80-1 20 SW8260B 04/29/09 1726 /jlr
Surr Dibromofluoromethane 101 %REC 70-1 30 SW8260B 04/29/09 1726 /jlr
Surr p-Bromofluorobenzene 102 %REC 80-1 20 SW8260B 04/29/09 1726 /jlr
Surr Toluene-d8 99.0 %REC 80-120 SW8260B 04/29/09 1726 /jlr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions GCL Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration Not detected at minimum detectable concentration
LABORATORIES
Client
Project
Lab ID
Client Sample ID
Analyses
METALS DISSOLVED
Cadmium
Iron
Manganese
Nickel
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn
Gross Alpha minus Rn Precision
Gross Alpha minus Rn MDC
Report RL Analyte reporting limit
Definitions QCL Quality control limit
MDC Minimum detectable concentration
ENERGYLABORA TORIES INC 2393 Salt Creek HIhway 82601 PO Box 3258 Casper WY82602
Toll Free 888.235.0515 3072350515 Fax [phone] casperenorgylab.corn wwwenergylab corn
LABORATORY ANALYTICAL REPORT
Denison Mines USA Corp Report Date 05/27109
April Monthly Groundwater Collection Date 04/22/09 1215
C09040844-005 DateReceived 04/24/09
MW65 Matrix Aqueous
MW
Result Units Qualifiers RL QCL Method Analysis Date By
2.9 ug/L 0.5 E200.8 05/01/090638/ts
8040 ug/L 30 E200.7 05/04/09 14.53 rdw
6320 ug/L 10 E200.8 04/28/09 0035 smi
60 ug/L 20 E200 05/01/09 0638 ts
2.6 pCi/L E900 05/15/09 1333 cgr
0.8 pCiIL E900.1 05/15/09 1333/cgr
pCi/L E900 05/15/09 1333 cgr
MCL Maximum contaminant level
ND Not detected at the reporting limit
ENERGVLABORA TORIES INC 2393 Sail Creek Hivhway 82601 P0 Box 3258 Caspei WY826021T17TollFree888.2350515 307235.0515 Fax [phone] casperenergy/ab corn www energy/at corn
LAaOIArOj3j4
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 05/27/09
Project April Monthly Groundwater Collection Date Not Provided
Lab ID C09040844-006 DateReceived 04/24/09
Client Sample ID Temp Blank Matrix Aqueous
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
PHYSICAL PROPERTIES
Temperature 4.0 E170 04/24/09 09.30 sec
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
LAIIO/A TORIES
Client
Project
Lab ID
Client Sample ID Trip Blank
Analyses
VOLATILE ORGANIC COMPOUNDS
Acetone
Benzene
Carbon tetrachioride
Chloroform
Chloromethane
Methyl ethyl ketone
Methylene chionde
Naphthalene
Toluene
Xylenes Total
Surr 2-Dichlorobenzene-d4
Surr Dibromofluoromethane
Surr p-Bromofluorobenzene
Surr Toluene-d8
Report RL Analyte reporting limit
Definitions QCL Quality control limit
ENERG YLABORA TORIES INC 2393 Sail Creek Hibway 82601 P0 Sex 3258 Caspei WY82602
Toil Free 888.235.0515 3072350515 Fax [phone] casperenergy/ab.com wwwenergylaAcom
LABORATORY ANALYTICAL REPORT
Denison Mines USA Corp Report Date 05/27/09
April Monthly Groundwater Collection Date 04/22109 1235
C09040844-0D7 DateReceived 04/24/09
Matrix Aqueous
MCL
Result Units Qualifiers RL QCL Method Analysis Date By
ND ug/L 20 SW8260B 04/29/09 1649 /jlr
ND ug/L 1.0 SW8260B 04/29/09 1649 /jlr
ND ug/L 1.0 SW8260B 04129109 1649/jlr
ND ug/L 1.0 8W8260B 04/29/09 1649/jir
ND ug/L 1.0 SW8260B 04/29/09 1649 Ijir
ND ug/L 20 SW82608 04/29/09 1649 /ir
ND ug/L SWB26OB 04/29/09 1649 jir
ND ug/L 1.0 5W8260B 04/29/09 16.49 /jlr
ND ug/L 1.0 SW8260B 04/29/09 1649 /jIr
ND ug/L 1.0 SW8260B 04/29/09 1649 /jlr
109 %REC 80-120 SW8260B 04/29/09 1649 /jlr
99.0 %REC 70-1 30 SW8260B 04/29/09 1649 /jlr
104 %REC 80-1 20 SW8260B 0429/09 1649 /jir
102 %REC 80-1 20 SW8260B 04/29/09 1649 /jlr
MCL Maximum contaminant level
ND Not detected at the reporting limit
ENERO VLABORA TORIES INC 2393 Sail Creek Highway 82801 -P0 Box 3258 Caspe4 IVY82602
____________Toll Free 888.2350515 307235.0515 Fax [phone] casperenergy/ab.corn wwwenergy/ab corn
TWORA TORIES
May 27 2009
Denison Mines USA Corp
6425 Hwy 191
Blanding UT 84511
ANALYTICAL SUMMARY REPORT
Workorder No C09040844 Quote ID C1640 POC Wells Monthly Groundwater Sampling
Project Name April Monthly Groundwater
Energy Laboratories Inc received the following samples for Denison Mines USA Corp on 4/24/2009 for analysis
Collect Date Receive Date Matrix Test
04/22/09 936 04/24/09 Aqueous Metals by ICP/ICPMS Dissolved
04/22/09 1010 04/24/09 Aqueous Metals by ICP/ICPMS Dissolved
5W8260B VOCs Standard List
Aqueous Metals by ICP/ICPMS Dissolved
Gross Alpha minus Rn222 and Uranium
Aqueous Metals by ICP/ICPMS Dissolved
Gross Alpha minus Rn222 and Uranium
SW8260B VOCs Standard List
04/22/09 1215 04/24/09 Aqueous Metals by ICP/ICPMS Dissolved
Gross Alpha minus Rn222 and Uranium
C09040844-006 Temp Blank 04/24/09 Aqueous Temperature
C09040844-007 Trip Blank 04/22/09 1235 04/24/09
As appropriate any exceptions or problems with the analyses are noted in the Laboratory Analytical Report the
QA/QC Summary Report or the Case Narrative
If you have any questions regarding these tests results please call
Repo Approved By
Sample ID Client Sample ID
C09040844-001 MW 14
C09040844-002 MW 26
C09040844-003 MW 32
C09040844-004 MW 60
04/22/09 1215 04/24/09
04/22/09 1235 04/24/09
C09040844-005 MW 65
Aqueous 5W8260B VOCs Standard List
ENERG YLASORA TORIES INC 2393 Sail Creek Hi/iway 82501 P0 Box 3258 Casper WY82602
_________Toll Free 888.235 0515 30723505/5 Fax [phone] caspenWenergy/ab.com www.energylab.com
QAIQC Summary Report
LASORA7Q//ES
Client Denison Mines USA Corp Report Date 05/27/09
Project April Monthly Groundwater Work Order C09040844
Analyte Count Result Units RI %REC Low Limit High Limit RPD RPDLimit Qual
Method E200.7 Batch Ri 17688
Sample ID LRB Method Blank Run ICP3-C_090501A 05/01/09 1519
Iron 0.05 mg/L 0.01
Sample ID LFB Laboratory Fortified Blank Run ICP3-C_090501A 05/01/09 1524
Iron 4.86 mg/I 0.030 98 85 115
Sample ID C09040592-OO4CMS Sample Matrix Spike Run ICP3-CO9OSO1A 05/01/09 15.45
Iron 11.1 mg/L 0.069 88 70 130
Sample ID C09040592-OO4CMSD Sample Matrix Spike Duplicate Run ICP3-C_090501A 05/01/09 1550
Iron 11.0 mg/I 0.069 82 70 130 1.3 20
Sample ID MB-21862 Method Blank Run ICP3-C_090501A 05/01/09 1744
Iron ND mg/I 001
Method E200.7 Batch Ri 17736
Sample ID LRB Method Blank Run ICP3-C_090504A 05/04/09 14.12
Iron 04 mg/L 0.01
Sample ID IFB laboratory Fortified Blank Run ICP3-090504A 05/04/09 1417
Iron 4.75 mg/I 0.030 94 85 115
Sample ID C09040844-0O3AMS Sample Matrix Spike Run ICP3-C_090504A 05/04109 1443
Iron a.si mg/I 0.030 70 130
Sample ID C09040844-OO3AMSD Sample Matrix Spike Duplicate Run ICP3-C_090504A 05/04/09 14 48
Iron 8.51 mg/I 0030 70 130 20
Sample ID MB-22145 Method Blank Run ICP3-C_090504A 05/04/09 1613
Iron ND mg/I 0.01
Method E200.8 Batch R1i7427
Sample ID LRB Method Blank Run ICPMS4-C_090427B 04/27/09 1949
Manganese ND mg/I 3E-05
Sample ID LFB laboratory Fortified Blank Run ICPMS4-C_090427B 04/27/09 1956
Manganese o.osio mg/I 0.0010 102 85 US
Sample ID C09040841-006FM54 Sample Matrix Spike Run ICPMS4-C_090427B 04/27/09 2323
Manganese 0.0629 mg/I 0.010 112 70 130
Sample ID C09040841-OO6FMSD Sample Matrix Spike Duplicate Run ICPMS4-C_090427B 04/27/09 2330
Manganese 0.0617 mg/I 0.010 110 70 130 1.8 20
Qualifiers
RI Analyte reporting limit The analyte level was greater than four times the spike level In
accordance with the method recovery is not caloulated
ND Not detected at the reporting limit MDC Minimum detectable concentration
ENERGYLASORA TORIES INC 2393 Sail Creek Hiqhway 82601 P0 Box 3258 Caspac WY82602
Toll Free 888.235 0515 307.35 0515 Fax [phone] caspei7llenergyIab.com www.energylab.com
QAIQC Summary Report
Client Denison Mines USA Corp
Project April Monthly Groundwater
Method E900.1
Sample ID MB-GA-0234
Gross Alpha minus Rn
Gross Alpha minus Rn Precision
Gross Alpha minus Rn MDC
0.3
0.5
0.9
Report Date 05/27/09
Work Order C09040844
Sample ID LCS-GA-0234
Gross Alpha minus Rn
Sample ID C09040841-OOSEMS
Gross Alpha minus Rn
Laboratory Control Sample
3.6pCilL
Sample Matrix Spike
14.9pCi/L
Run BERTHOLD 770-2_090513A
101 70 130
Run BERTHOLD 770-2_090513A
100 70 130
05/15/09 0940
05/15/09 0940
Sample ID C09040841-OO5EMSD
Gross Alpha minus Rn
Sample Matrix Spike Duplicate
12 8pCi/L
Run BERTHOLD 770-2_090513A
84 70 130 15
05/15/09 1131
34.3
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qua
Method
Sample ID
Uranium
E200.8
LRB Method Blank
ND mg/L SE-OS
Run ICPMS4-C_090430A
Batch RI 17602
04/30/09 1200
Sample ID
Uranium
LFB Laboratory Fortified Blank
0.0526 mg/L 0.00030 105
Run ICPMS4-C090430A
85 115
04/30/09 12.04
Sample ID
Uranium
C09040862-OO3AMS Sample Matrix Spike
00524 mg/L 0.00030 104
Run ICPMS4-C_090430A
70 130
04/30/09 2340
Sample ID
Uranium
C09040862-OO3AMSD Sample Matrix Spike Duplicate
0.0542 mg/L 0.00030 108
Run ICPMS4-C_090430A
70 130 3.5
04/30/09 2344
20
Method E200.8 Batch Ri 17607
Sample ID
Cadmium
Nickel
Uranium
LFB Laboratory Fortified Blank
0.0546 mg/L
0.0544 mg/L
0.0542 mg/L
0.010
0.050
0.00030
109
109
108
Run ICPMS2-C_090430A
85 115
85 115
85 115
04/30/09 1456
Sample ID
Cadmium
Nickel
Uranium
MB-22132 Method Blank
ND mg/L
ND mg/L
ND mg/L
1E-OS
0.0007
1E-OS
Run ICPMS2-C_090430A 04/30/09 1542
Sample ID
Cadmium
Nickel
Uranium
C09040844-OOSAMS4 Sample Matrix Spike
0.0510 mg/L
0.106 mg/L
0.0578 mg/L
0.010
0.050
0.00030
96
92
110
Run ICPMS2-C 090430A
70 130
70 130
70 130
05/01/09 06.44
Sample ID
Cadmium
Nickel
Uranium
C09040844-OO5AMSD Sample Matrix Spike Duplicate
0.0507 mg/L
0.103 mg/L
0.0583 mg/L
0.010
0.050
0.00030
96
67
111
Run ICPMS2-C_090430A
70 130
70 130
70 130
0.6
2.8
0.7
05/01/09 0651
20
20
20
Method Blank
pCi/L
pCi/L
pCi/L
Batch GA-0234
Run BERTHOLD 770-2_0905i3A 05/15/09 0940
ND Not detected at the reporting limit
Not detected at minimum detectable concentration
ENERGYLABORA TORIES INC 2393 Sail Creek Hiq/iway 82501 20 Box 3258 Caspei WY82502
____________Toil Free 888.2L5 0515 3072350515 Fax [phone] casperienergy/ab.corn www.energy/ab corn
LABORATORIES
QAIQC Summary Report
Client Denison Mines USA Corp Report Date 05/27/09
Project April Monthly Groundwater Work Order C09040844
Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method SW8260B Batch R117545
Sample ID 042909_LCS_3 jfi Laboratory Control Sample Run SATURNCA_090429A 04/29/09 1128
Acetone 92 ug/L 20 92 70 130
Benzene 9.1 ug/L 1.0 91 70 130
Carbon tetrachloride 8.6 ug/L 1.0 86 70 130
Chloroform 87 ugIL 1.0 87 70 130
Chloromethane 8.5 ug/L 1.0 85 70 130
mp-Xylenes 18 ug/L 90 70 130
Methyl ethyl ketone 92 ug/L 20 92 70 130
Methylene chloride ug/L 1.0 82 70 130
Naphthalene 9.5 ug/L 1.0 95 70 130
o-Xylene 9.4 uglL 1.0 94 70 130
Toluene 9.1 ug/L 91 70 130
Xylenes Total 27 ug/L 1.0 91 70 130
Surr 12-Dichlorobenzene-d4 1.0 108 80 120
Surr Dibromofluoromethane 95 70 130
Surr Bromofluorobenzene 1.0 110 80 130
Surr Totuene-dS 1.0 99 80 120
Sample ID 042909_MBLK_6 Method Blank Run SATURNCA_090429A 04129/09 13.20
Acetone ND ug/L 20
Benzene ND ug/L 1.0
Carbon tetrachloride ND ug/L
Chloroform ND ug/L
Chtoromethane ND ug/L 1.0
mp Xylenes ND ug/L 1.0
Methyl ethyl ketone ND ug/L 20
Methylene chloride ND ug/L 1.0
Naphthalene ND ug/L 1.0
o-Xylene ND ug/L 1.0
Toluene ND ug/L
Xylenes Total ND ug/L 1.0
Surr 12-Dichlorobenzene d4 98 80 120
Surr Dibromcfluorornethane 100 70 130
Surr p-Bromofluorobenzene 1.0 101 80 120
Surr Toluene-d8 1.0 103 80 120
Sample ID C09040844-OO2BMS Sample Matrix Spike Run SATURNCA..090429A 04/29/09 1919
Benzene 2200 ug/L 200 112 70 130
Carbon tetrachloride 2100 ug/L 200 104 70 130
Chloroform 2900 ug/L 200 106 70 130
Chloromethane 2100 ug/L 200 106 70 130
mp-Xylenes 4000 ug/L 200 100 70 130
Methyl ethyl ketone 18000 ug/L 4000 92 70 130
Methylene chtoride 2100 ug/L 200 104 70 130
Naphthalene 2000 ug/L 200 99 70 130
Qualifiers
RL Analyte reporting limit ND Not detected at the reporting limit
MDC Minimum detectable concentration
EN RGY
LABC/A rO/WfS
Client Denison Mines USA Corp
Project April Monthly Groundwater
Analyte
Method SW8260B
Sample ID C09040844-OO2BMS
o-Xylene
Toluene
Xylenes Total
Surr 2-Dichlorobenzene-d4
Surr Dibromofluoromethane
Surr p-Bromofluorobenzene
Surr Toluene-d8
Sample ID C09040844-O02BMSD jj Sample Matrix Spike Duplicate
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
mp-Xylenes
Methyl ethyl ketone
Methylene chloride
Naphthalene
o-Xylene
Toluene
Xylenes Total
Surr 2-Dichlorobenzene-d4
Surr Dibromofluoromethane
Surr p-Bromofluorobenzene
Surr Toluene-d8
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
ENERGYLABORA TORIES iNC 2393 Sail Creek Hi/mvay 82601 RU Box 3258 Casper WY82602
Toll Free 888.2350515 3072350515 Fax [phone] casperillenergyiab corn www.eaergylab.com
QA/QC Summary Report
Report Date 05/27/09
Work Order C09040844
Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Batch R117545
Sample Matrix Spike Run SATURNCA_090429A 04/29/09 19.19
2000 ug/L 200 102 70 130
2100 ugiL 200 106 70 130
6000 ug/L 200 101 70 130
200 97 80 120
200 100 70 130
200 105 80 120
200 101 80 120
Run SATURNCA_090429A 04/29/09 1956
2100 ug/L 200 105 70 130 20
2100 ug/L 200 104 70 130 0.4 20
3000 ug/L 200 110 70 130 2.7 20
2200 ug/L 200 108 70 130 1.5 20
4000 ugiL 200 100 70 130 20
20000 ug/L 4000 98 70 130 20
2000 ug/L 200 100 70 130 3.5 20
1900 ug/L 200 94 70 130 5.8 20
2000 ug/L 200 102 70 130 0.8 20
2100 ug/L 200 105 70 130 1.1 20
6000 ug/L 200 100 70 130 0.3 20
200 102 80 120 10
200 96 70 130 10
200 101 80 120 10
200 98 80 120 10
ND Not detected at the reporting limit
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Energy Laboratories Inc
%llo rico rcle Recei Itt Checklist
Denison Mines USA Corp C09040844
Login completed by Kimberly Humiston Date and Time Received 4/24/2009 930 AM
Reviewed by Received by em
Reviewed Date Carrier name Next Day Air
Shipping container/cooler in good condition Yes No Not Present
custody seals intact on shipping container/cooler Yes No LI Not Present
Custody seals intact on sample bottles Yes No Not Present
Chain of custody present Yes No
Chain of custody signed when relinquished and received Yes No
Chain of custody agrees with sample labels Yes No
Samples in proper container/bottle Yes No
Sample containers intact Yes No
Sufficient sample volume for indicated test Yes No
All samples received within holding time Yes No fl
Container/Temp Blank temperature 4C On Ice
Water VOA vials have zero headspace Yes No No VOA vials submitted fl
Water pH acceptable upon receipt Yes No Not Applicable
Contact and Corrective Action Comments
None
April Monthly Groundwater
Date 27-May-09
CASE NARRATIVE
CLIENT
Project
Sample Delivery Group C09040844
ORIGINAL SAMPLE SUBMITTALS
All original sample submittals have been returned with the data package
SAMPLE TEMPERATURE COMPLIANCE 4C 2C
Temperature of samples received may not be considered properly preserved by accepted standards Samples that are hand
delivered immediately after collection shalt be considered acceptable if there is evidence that the chilling process has begun
GROSS ALPHA ANALYSIS
Method 900.0 for gross alpha and gross beta is intended as drinking water method for low TDS waters Data provided by
this method for non potable waters should be viewed as inconsistent
RADON 1N AIR ANALYSIS
The desired exposure time is 48 hours days The time delay in returning the canister to the laboratory for processing
should be as short as possible to avoid excessive decay Maximum recommended delay between end of exposure to
beginning of counting should not exceed days
SOIL/SOLID SAMPLES
All samples reported on an as received basis unless otherwise indicated
ATRAZINE SIMAZINE AND PCB ANALYSIS USING EPA 505
Data for Atrazine and Simazine are reported from EPA 525.2 not from EPA 505 Data reported by ELI using EPA method
505 reflects the results for seven individual Aroclors When the results for all seven are ND not detected the sample
meets EPA compliance criteria for PCB monitoring
SUBCONTRACTING ANALYSIS
Subcontracting of sample analyses to an outside laboratory may be required If so ENERGY LABORATORIES will utilize its
branch laboratories or qualified contract laboratories for this service Any such laboratories will be indicated within the
Laboratory Analytical Report
BRANCH LABORATORY LOCATIONS
eli-b Energy Laboratories Inc Billings MT
eli Energy Laboratories Inc Gillette WY
eli-h Energy Laboratories Inc Helena MT
eli-r Energy Laboratories Inc Rapid City SD
eli-t Energy Laboratories Inc College Station TX
CERTIFICATIONS
USEPA WY00002 Radiochemical WY00937 FL-DOH NELAC E87641 Radiochemical E871017 California 02118CA
Oregon WY20000I Utah 3072350515 Virginia 00057 Washington C1903
ISO 17025 DISCLAIMER
The results of this Analytical Report relate only to the items submitted for analysis
ENERGY LABORATORIES INC CASPERWY certifies that certain method selections contained in this report meet
requirements as set forth by the above accrediting authorities Some results requested by the client may not be covered
under these certifications All analysis data to be submitted for regulatory enforcement should be certified in the sample
state of origin Please verify ELIs certification coverage by visiting www.energylab.com
ELI appreciates the opportunity to provide you with this analytical service For additional information and services visit our
web page www.energyIab.com
EPRGY
LABO/A TORIES
ENERGVLABORA TORIES INC 2393 Sail Creek Hiqhway 82607 Pa Box 3258 Casper WY82602
Toil Free 888.235.0515 307235.0515 Fax [phone] caspercOenergylab corn wwwenergy/ab corn
Denison Mines USA Corp
THIS IS THE FINAL PAGE OF THE LABORATORY ANALYTICAL REPORT
Attachment
ENERGYLASORA TORIES INC 2393 Sail Creek Hqhway 8250 RO Box 3258 Casper WY82602
____________Toll ee 888235.0515 307235.05/5 Fax [phone] casper5enbrgy/ab.com www energy/sb cornENERGY
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/09/09
Project June Ground Water Collection Date 06/17/09 0919
Lab ID C09060844-001 DateReceived 06/19/09
Client Sample ID MW 14 Matrix Aqueous
MCI
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
METALS DISSOLVED
Manganese 2110 ugL 10 E200.8 06/30/09 2300 sml
Uranium 63.4 ugL 0.3 E200.8 06/30/09 2300 sml
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions DCL Quality control limit ND Not detected at the reporting limit
ENERGYLABORA TORIES INC P2393 Salt Creek Hbway 82601 Box 3258 Casbec WVt82602
Toll Free 888.235.0515 307235.0515 Fax [phone] casperC4energylab.com www.energylab.comEtERGY
TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/09/09
Project June Ground Water Collection Date 06/17/09 0937
Lab ID C09060844-002 DateRecelved 06/19/09
Client Sample ID MW 26 Matrix Aqueous
MCL
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
METALS DISSOLVED
Manganese 1190 ug/L 10 E200.8 06/30/09 2307/sml
Uranium 54.3 ug/L 0.3 E200.8 06130/09 2307 smi
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 SW8260B 06/23/09 1726 wen
Benzene ND ug/L 1.0 SW8260B 06/23/09 1726 wen
Carbon tetrachloride ND ug/L 1.0 SW8260B 06/23/09 1726 wen
Chloroform 1400 ug/L 200 SW8260B 06/25/09 0907 wen
Chloromethane ND ug/L 1.0 SW8260B 06/23/09 1726 wen
Methyl ethyl ketone ND ug/L 20 SW8260B 06/23/09 1726 wen
Methylene chloride 54 ugL 20 SW8260B 06/24/09 1302/wen
Naphthalene ND ug/L 1.0 SW8260B 06/23/09 1726 wen
Toluene ND ug/L 1.0 SW8260B 06/23/09 1726 wen
Xylenes Total ND ug/L 1.0 SW8260B 06/23/09 1726 wen
Surr Dibromofluoromethane 102 %REC 70-130 SW82608 06/23/09 1726 wen
Surr p-Bromoltuorobenzene 107 %REC 80-120 SW8260B 06/23/09 1726 wen
Surr Toluene-d8 122 %REC 80-120 5W8260B 06/23/09 1726 wen
Surr 2-Dichlorobenzene-d4 96.0 %REC 80-120 5W8260B 06/23/09 1726 wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
Spike recovery outside of advisory limits
ENERO YLABORA TORIES INC 2393 Sail Creek Hihway 82601 P0 Box 3258 Caspec WY82602
Toll Free 888.235.0515 307235.0515 Fax [phone] casperenergyIab.com www.energylab.com
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/09/09
Project June Ground Water Collection Date 06/17/09 1212
Lab ID C09060844-003 DateReceived 06/19/09
Client Sample ID MW 32 MatrIx Aqueous
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
METALS DISSOLVED
Cadmium 2.6 ug/L 0.5 E200.8 06/24109 0756 ts
Iron 8050 ugL 30 E200.8 07/01/09 0654 sml
Manganese 5120 ug/L 10 E200.8 07/01/09 0654 sml
Nickel 59 ug/L 20 E200.8 06/24/09 0756/ts
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 3.2 pCi/L E900.1 07/01/09 1639 cgr
Gross Alpha minus Rn Precision 0.8 pCi/L E900.1 07/01/09 1639 cgr
Gross Alpha minus Rn MDC 0.7 pCi/L E900.1 07/01/09 1639 cgr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration
EIERGY
LASORA TORIES
ENERO VLASORA TORIES INC -2393 Salt Creek Hq/iway 82601 -EQ Sax 3258 Caspel V/Y82602
Toll Free 888.235 0515 307235.0515 Fax [phone] caspereflergjIab.cam wwwenergy/ab.camE1ERGY
LARORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07109/09
Project June Ground Water Collection Date 06/17/09 1430
Lab ID C09060844-004 DateReceived 06/19109
Client Sample ID MW 60 Matrix Aqueous
MCI
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
METALS DISSOLVED
Cadmium ND ug/L 0.5 E200.8 06/24/09 0803 ts
Iron ND ug/L 30 E200.8 07/01/09 0701 sml
Manganese ND ug/L 10 E200.8 06/24/09 0803 ts
Nickel ND ug/L 20 E200.8 06/24/09 0803 ts
Uranium ND ug/L 0.3 E200.8 06/24/09 0803 ts
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn -0.02 pCi/L E900.1 07/01/09 1639 cgr
Gross Alpha minus Rn Precision 0.4 pCi/L E900.1 07/01/09 1639 cgr
Gross Alpha minus Rn MDC 0.7 pCi/L E900.1 07/01/09 1639 cgr
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 SW8260B 06/23/09 1803 wen
Benzene ND ug/L 1.0 SW8260B 06/23/09 1803 wen
Carbon tetrachloride ND ug/L 1.0 SW8260B 06/23/09 1803 wen
Chloroform 9.3 ug/L 1.0 SW82608 06/23/09 1803 wan
Chloromethane ND ug/L 1.0 SW8260B 06/23/09 1803 wen
Methyl ethyl ketone ND ug/L 20 SW8260B 06/23/09 1803 wan
Methylene chloride ND ugiL 1.0 SW8260B 06/23/09 1803 wen
Naphthalene ND ugJL 1.0 SW8260B 06/23/09 1803 wan
Toluene ND ug/L 1.0 SW8260B 06/23/09 1803 wan
Xylenes Total ND ug/L 1.0 SW8260B 06/23/09 1803 wan
Surr Dibromofluoromethane 98.0 %REC 70-1 30 SW8260B 06/23/09 1803 wen
Surr p-Bromofluorobenzene 108 %REC 80-120 SW82608 06/23/09 1803 wan
Surr Toluene-d8 105 %REC 80-120 5W8260B 06/23/09 1803 wan
Surr 2-Dichlorobenzene-d4 98.0 %REC 80-1 20 SW8260B 06/23/09 1803 wan
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration Not detected at minimum detectable concentration
ENERO YLAHORA TORIES INC 2393 Sail Creek Hfqbway 82601 P0 Box 3258 Caspe4c WY82602
Toll Free 885 235.0515 307235.0515 Fax [phone] [e-mail] wwwepergy/ab corn
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/09/09
Project June Ground Water Collection Date 06/17109 1212
Lab ID C09060844-005 DateReceived 06/19/09
Client Sample ID MW 65 Matrix Aqueous
MCU
Analyses Result Units Qualifiers RI QCL Method Analysis Date By
METALS DISSOLVED
Cadmium 2.6 ug/L 0.5 E200.8 06/24/09 0809 ts
Iron 7970 ug/L 30 E200.8 07/01/09 0708/sml
Manganese 5090 ugh 10 E200.8 07/01/09 0708 smi
Nickel 60 ug/L 20 E200.8 06/24/09 0809 Is
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 2.9 pCi/L E900.1 07/01/09 1639 cgr
Gross Alpha minus Rn Precision 0.8 pCi/L E900.1 07/01/09 1639 cgr
Gross Alpha minus Rn MDC 0.7 pCi/L E900.1 07/01/09 1639 cgr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration
EtERGY
TOf/ES
ENERGYLABORATORIES INC P2393 Salt CreekHfqbway 52601 P0 Box 325S Caspe WV82602
Toll Free 888.235.0515 307235.0515 Fax [phone] casperºenergylab.com www.energylab.comEtERGY
LA/3ORA rop/Es
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07109/09
Project June Ground Water Collection Date 06/17109 1212
Lab ID C09060844-006 DateReceived 06119109
Client Sample ID Trip Blank Matrix Aqueous
MCL/
Analyses Result Units Qualifiers RI QCL Method Analysis Date By
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 5W8260B 06/23/09 1841 wen
Benzene ND ug/L 1.0 SW8260B 06/23/09 1841 wen
Carbon tetrachloride ND ugh 1.0 SW8260B 06/23/09 1841 wen
Chloroform ND ug/L 1.0 SW8260B 06/23/09 1841 wen
Chioromethane ND ug/L 1.0 5W8260B 06/23/09 1841 wen
Methyl ethyl ketone ND ug/L 20 SW8260B 06/23/09 1841 wen
Methylene chloride ND ugh 1.0 SW8260B 06/23/09 1841 wen
Naphthalene ND ug/L 1.0 SW8260B 06/23/09 1841 wen
Toluene ND ug/L 1.0 SW8260B 06/23/09 1841 wen
Xylenes Total ND ug/L 1.0 SW8260B 06/23/09 1841 wen
Surr Dibromofluoromethane 98.0 %REC 70-1 30 SW8260B 06/23/09 1841 wen
Surr p-Bromofluorobenzene 110 %REC 80-120 8W8260B 06/23/09 1841 wen
Sum Toluene-d8 120 %REC 80-120 SW82608 06/23/09 1841 wen
Surr 2-Dichlorobenzene-d4 106 %REC 80-1 20 SW8260B 06/23/09 1841 wen
Report RI Analyte reporting limit MCL Maximum contaminant level
Definitions QCI Quality control limit ND Not detected at the reporting limit
ENERG VLABORA TORIES INc P2393 Sail Creek Hbway 82601 P0 Box 3258W aspec WY82602
Toil Free 888.235.0515 307235.0515 Fax [phone] casperenergy/ab.com www energy/at cornEfERGY
LARORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/09/09
Project June Ground Water Collection Date 06/17/09
Lab ID C09060844-007 DateReceived 06/19/09
Client Sample ID Temp Blank Matrix Aqueous
MCL
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
PHYSICAL PROPERTIES
Temperature 4.0 -c E170.1 06/19/09 0930 kbh
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERGYLABORA TORIES INC 2393 Sail Creek Hi.qhway 82601 P0 Sex 3258 Caspei WY82602
Tel Free 888.235.0515 307235.0515 Fax [phone] casperlenergylab.ccm wwwenergylab.cem
ANALYTICAL SUMMARY REPORT
July 09 2009
Denison Mines USA Corp
6425 Hwy 191
Blanding UT 84511
Workorder No C09060844 Quote ID C1640 POC Wells Monthly Groundwater Sampling
Project Name June Ground Water
Energy Laboratories Inc received the following samples for Denison Mines USA Corp on 6/19/2009 for analysis
Sample ID Client Sample ID Collect Date Receive Date Matrix Test
C09060844-001 MW 14 06/17/09 0919 06/19109 Aqueous Metals by ICP/ICPMS Dissolved
C09060844-002 MW 26 06117109 0937 06119109 Aqueous Metals by ICP/ICPMS Dissolved
5W8260B VOCs Standard List
C09060844-003 MW 32 06117/09 1212 06/19/09 Aqueous Metals by ICP/ICPMS Dissolved
Gross Alpha minus Rn222 and Uranium
C09060844-004 MW 60 06/17/09 1430 06/19/09 Aqueous Metals by ICP/ICPMS Dissolved
Gross Alpha minus Rn222 and Uranium
SW8260B VOCs Standard List
C09060844-005 MW 65 06/17/09 1212 06/19/09 Aqueous Metals by ICP/ICPMS Dissolved
Gross Alpha minus Rn222 and Uranium
C09060844-006 Trip Blank 06/17/09 1212 06/19/09 Aqueous 5W8260B VOCs Standard List
C09060844-007 Temp Blank 06/17/09 0000 06/19/09 Aqueous Temperature
As appropriate any exceptions or problems with the analyses are noted in the Laboratory Analytical Report the
QAJQC Summary Report or the Case Narrative
If you have any questions regarding these tests results please call
Report Approved
Steven Cariston
Technical Director
ENERGY
LAIIORA TORIES
QAIQC Summary Report
Method
Sample ID LRB
Cadmium
Manganese
Nickel
Uranium
Sample ID IFB
Cadmium
Manganese
Nickel
Uranium
Method Blank
ND
ND
ND
ND
Laboratory Fortified Blank
0.0520 mg/L
0.0520 mg/L
0.0517 mg/L
0.0502 mg/I
6E-05
5E-05
9E-05
8E-06
0.010
0.010
0.050
0.00030
0.010
0.010
0.050
0.00030
Run ICPMS2-090623A
85 115
85 115
85 115
85 115
Run ICPMS2-C_090623A
93 70 130
93 70 130
93 70 130
70 130
Run ICPMS2-C_090623A
94 70 130
93 70 130
93 70 130
70 130
06/24/09 0830
0.2 20
0.4 20
0.4 20
0.7 20
Qualifiers
RI Analyte reporting limit The analyte level was greater than four times the spike level In
accordance with the method recovery is not calculated
MDC Minimum detectable concentration
EtERCV
LASORJ4 TORIES
ENERG YLAHORA TORIES INC 2393 Salt Creek Hifqbway 82601 P0 Box 3258 Caspe6 WV82602
Toll Free 888.235.0515 3072350515 Fax [phone] casperenergylab.com www.eiiergylab.com
Client Denison Mines USA Corp
Project June Ground Water
Analyte Count Result Units RI %REC low limit High limit RPD RPDlimlt Qual
E200.8
Report Date 07109109
Work Order C09060844
mg/I
mg/I
mg/I
mg/I
Run ICPMS2-C_090623A
0.0010
0.0010
0.0010
0.00030
104
104
103
100
Batch R120024
06/23/09 1316
06/23/09 1323
06/24/09 0823SampleIDC09060865-002AM54 Sample Matrix Spike
Cadmium 0.0468 mg/I
Manganese 0.0497 mg/I
Nickel 0.0510 mg/I
Uranium 0.717 mg/I
Sample ID C09060865-OO2AMSD Sample Matrix Spike Duplicate
Cadmium 0.0469 mg/I
Manganese 0.0499 mg/I
Nickel 0.0508 mg/I
Uranium 0.712 mg/I
ND Not detected at the reporting limit
EPIERGYLABORA TORIES INC 2393 Sail Creek Hbway 82601 -P0 Box 3258 Caspe6 WY82602
Toll Free 888.235.0515 307235.0515 Fax [phone] [e-mail]-wwwenergy/ab.com
QNQC Summary Report
Report Date 07/09/09
Work Order C09060844
ENERGY
LARORA TORIES
Client Denison Mines USA Corp
Project June Ground Water
Sample ID LCS3-22847
Iron
Manganese
Uranium
Sample ID LFB
Iron
Manganese
Uranium
Method Blank
ND
ND
ND
Method Blank
ND
0.0001
ND
Sample Matrix Spike
6.43 mg/L
0.341 mg/L
0.297 mg/L
Sample Matrix Spike Duplicate
6.58 mg/L
0.344 mg/L
0.296 mg/L
Sample Matrix Spike
1.31 mg/L
0.0619 mgfL
0.201 mg/L
Sample Matrix Spike Duplicate
1.32 mg/L
0.0627 mg/L
0.201 mg/L
Laboratory Control Sample
2.30 mg/kg-dry
2.33 mg/kg-dry
0.515 mg/kg-dry
Laboratory Fortified Blank
1.29 mg/L
0.0548 mg/L
0.0540 mg/L
Run ICPMS4-C_090630A
102 70 130
113 70 130
117 70 130
Run ICPMS4-C_090630A
105 70 130
115 70 130
117 70 130
Run ICPMS4-C_090630A
98 70 130
107 70 130
105 70 130
Run ICPMS4-C_090630A
99 70 130
109 70 130
105
Run ICPMS4-C_090630A
92 85 115
93 85 115
103 85 115
Run ICPMS4-C_090630A
103 85 115
110 85 115
108 85 115
06/30/09 2233
2.4 20
20
0.2 20
07/01/09 0721
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Batch R120311
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
Run ICPMS4-C_090630A
Run ICPMS4-C_090630A
Method E200.8
Sample ID LRB
Iron
Manganese
Uranium
Sample ID MB-22837
Iron
Manganese
Uranium
Sample ID C09060350-OO3BMS4
Iron
Manganese
Uranium
Sample ID C09060350-OO3BMSD
Iron
Manganese
Uranium
Sample ID C09061064-OOIBMS4
Iron
Manganese
Uranium
Sample ID C09061064-OOIBMSD
Iron
Manganese
Uranium
06/30/09 1317
06/30/09 1458
06/30/09 2227
0.0006
3E-05
3E-05
0.0006
3E-05
3E-05
0.030
0.010
0.00030
0.030
0.010
0.00030
0.030
0.010
0.00030
0.030
0.010
0.00030
0.030
0.010
0.00030
0.0010
0.0010
0.00030
07/01/09 0728
0.8 20
1.2 20
70 130 20
07/01/09 0816
07/01/09 0949
ND Not detected at the reporting limit
Method E900
Sample ID MB-GA-0245
Gross Alpha minus Rn
Gross Alpha minus Rn Precision
Gross Alpha minus Rn MDC
QAIQC Summary Report
0.1 pCi/L
0.4 pCi/L
0.7 pCi/L
Sample ID LCS-GA-0245
Gross Alpha minus Rn
Laboratory Control Sample
24.0 pCi/L
Run BERTI-IOLD 770-2_090626A
91 70 130
07/01/09 1535
Sample ID C09060844-OO5BMS
Gross Alpha minus Rn
Sample Matrix Spike
26.0 pCi/L
Run BERThOLD 770-2_090626A
88 70 130
07/01/09 1639
Sample ID C09060844-OO5BMSD
Gross Alpha minus Rn
Sample Matrix Spike Duplicate
25.0 pCi/L
Run BERTHOLD 770-2_090626A
84 70 130
07/01/09 1639
26.5
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
EIERGY
LAROIZA TORIES
ENERGYLABORA TORIES INC 2393 Sail Creak HIbway 826017 P0 Box 3258 Caspec WV82602
Toll Free 868.235.0515 307235.0515 Fax [phone] casperenergy/ab.com-wwwenergy/ab.com
Client Denison Mines USA Corn
Project June Ground Water
Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLImIt Qual
Method Blank
Report Date 07/09/09
Work Order C09060844
Run BERTHOLD 770-2_090626A
Batch GA-0245
07/01/09 1535
ND Not detected at the reporting limit
Not detected at minimum detectable concentration
QAIQC Summary Report
Method SW82600
Sample ID 23-June-09jX5_3
Benzene
Carbon tetrachloride
Chloroform
Chioromethane
mp-Xylenes
Methyl ethyl ketone
Methylene chloride
Naphthalene
o-Xylene
Toluene
Xylenes Total
Surr Dibromofluoromethane
Sum p-Bromofluorobenzene
Sum Toluene-d8
Surr .2-Dichlorobenzene-d4
jfi Laboratory Control Sample
10 ug/L
8.0 ugIL
9.0 ug/L
9.9 ug/L
20 ug/L
98 ug/L
8.7 ugIL
8.3 ug/L
10 ug/L
10 ug/L
30 ug/L
Sample ID 23-JuneO9MBLK_6 fl Method Blank
Benzene ND
Carbon tetrachloride ND
Chloroform ND
Chloromethane ND
mp-Xylenes ND
Methyl ethyl ketone ND
Methylene chloride ND
Naphthalene ND
o-Xylene ND
Toluene ND
Xylenes Total ND
Surr Dibromofluoromethane
Surr p-Bromofluorobenzene
Sum Toluene-d8
Sum 2-Dichlorobenzene-d4
Sample ID C09060839-OO8ilMS fl Sample Matrix Spike
Benzene 100 ug/L
Carbon tetrachioride 98 ug/L
Chloroform 99 ug/L
mp-Xylenes 91 ug/L
o-Xylene 92 ug/L
Toluene 120 ug/L
Xylenes Total 180 ug/L
Surr Dibromofluoromethane
Surr p-Bromofluorobenzene
Surr Toluene-d8
Run GCMS2_090623A
1.0 101 70 130
1.0 80 70 130
1.0 90 70 130
1.0 99 70 130
1.0 99 70 130
20 98 70 130
1.0 87 70 130
1.0 83 70 130
1.0 100 70 130
1.0 102 70 130
1.0 99 70 130
1.0 96 70 130
1.0 99 80 130
1.0 106 80 120
1.0 90 80 120
1.0 90 70 130
1.0 106 80 120
1.0 106 80 120
1.0 95 80 120
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
ND Not detected at the reporting limit
Spike recovery outside of advisory limits
ElERCf
LARORA TORIES
ENERGYLAHORA TORIES INC 2393 Sail Creek Hlqhway 82601 -P0 Box 3258 Caspet WY82602
Toil Free 888.235.0515-307235.0515 Fax [phone] casperenergy/aAcoin- wwwener.qylab.com
Client Denison Mines USA Corp
Project June Ground Water
Count Result Units RL %REC Low Limit High Limit RPD RPDLimit QualJ
Report Date 07/09/09
Work Order C09060844
Run GCMS2_090623A
Batch R119945
06/23/09 0934
06/23/09 1146
06/23/09 1919
ug/L
ugfL
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
1.0
1.0
1.0
1.0
1.0
20
1.0
1.0
1.0
1.0
1.0
Run GCMS2_090623A
10 105 70 130
10 98 70 130
10 99 70 130
10 91 70 130
10 92 70 130
10 122 70 130
10 92 70 130
10 98 70 130
10 108 80 120
10 121 80 120
ENERO YLABORA TORIES INC 2393 Sail Creek Hibway 82601 P0 Box 3258 Caspe WY82602
To//Free 888235.0515 307235.0515 Fax [phone] casper5energy/a/.com wwwenergylab.comEIERGY
LABORA TORIES
QAIQC Summary Report
Client Denison Mines USA Corn Report Date 07109109
Project June Ground Water Work Order C09060844
Count Result Units RI %REC Low limit High Limit RPD RPDIimit QualJ
Method SW8260B Batch RI 9945
Sample ID C09060839-0O8HMS ii Sample Matrix Spike Run GCMS2_090623A 06/23/09 1919
Surr 12-Dichlorobenzene-d4 10 97 80 120
Sample ID C09060839-OO8HMSD jj Sample Matrix Spike Duplicate Run GCMS2_090623A 06/23/09 1957
Benzene 96 ug/L 10 96 70 130 8.3 20
Carbon tetrachloride 100 ug/L 10 101 70 130 3.2 20
Chloroform 100 ug/L 10 102 70 130 2.4 20
mp-Xylenes 110 ug/L 10 106 70 130 15 20
o-Xylene 110 ug/L 10 108 70 130 16 20
Toluene 94 ugJL 10 94 70 130 20
Xylenes Total 210 ug/L 10 107 70 130 16 20
Sum Dibromofluoromethane 10 101 70 130 10
Surr p-Bromofiuorobenzene 10 97 80 120 10
Surr Toluene-d8 10 96 80 120 10
Surr 2-Dichlorobenzene-d4 10 98 80 120 10
Qualifiers
RL Analyte reporting limit ND Not detected at the reporting limit
MDC Minimum detectable concentration RPD exceeds advisory limit
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Energy Laboratories Inc
Alo rkorder Receipt Checklist
Denison Mines USA Corp C09060844
Login completed by Kimberly Humiston Date and Time Received 6/19/2009 930 AM
Reviewed by Received by al
Reviewed Date Carrier name Next Day Air
Shipping container/cooler in good condition Yes EJ No Not Present
Custody seals intact on shipping container/cooler Yes jJ No Not Present
Custody seals intact on sample bottles Yes No Not Present
Chain of custody present Yes No
Chain of custody signed when relinquished and received Yes No
Chain of custody agrees with sample labels Yes No
Samples in proper container/bottle Yes No
Sample containers intact Yes No
Sufficient sample volume for indicated test Yes IZI No
All samples received within holding time Yes No
Container/Temp Blank temperature 4C On Ice
Water VOA vials have zero headspace Yes No No VOA vials submitted
Water pH acceptable upon receipt Yes No Not Applicable
contact and Corrective Action Comments
None
ENERGYLABORA TORIES INC 2393 Sail Creek Hiqbway 8260 P0 Box 3258 Caspe WV82602
Toll Free 888.235 0515 307235 0515 Fax [phone] casperenergy/ab.com www energy/ala corn
Denison Mines USA Corp Date 09-Jul-09CLIENT
Project
Sample Delivery Group C09060844
ORIGINAL SAMPLE SUBMITTALS
All original sample submittals have been returned with the data package
SAMPLE TEMPERATURE COMPLIANCE 4C 2C
Temperature of samples received may not be considered properly preserved by accepted standards Samples that are hand
delivered immediately after collection shall be considered acceptable if there is evidence that the chilling process has begun
GROSS ALPHA ANALYSIS
Method 900.0 for gross alpha and gross beta is intended as drinking water method for low TDS waters Data provided by
this method for non potable waters should be viewed as inconsistent
RADON IN AIR ANALYSIS
The desired exposure time is 48 hours days The time delay in returning the canister to the laboratory for processing
should be as short as possible to avoid excessive decay Maximum recommended delay between end of exposure to
beginning of counting should not exceed days
SOIL/SOLID SAMPLES
All samples reported on an as received basis unless otherwise indicated
ATRAZINE SIMAZINE AND PCB ANALYSIS USING EPA 505
Data for Atrazine and Simazine are reported from EPA 525.2 not from EPA 505 Data reported by ELI using EPA method
505 reflects the results for seven individual Aroclors When the results for all seven are ND not detected the sample
meets EPA compliance criteria for PCB monitoring
SUBCONTRACTING ANALYSIS
Subcontracting of sample analyses to an outside laboratory may be required If so ENERGY LABORATORIES will utilize its
branch laboratories or qualified contract laboratories for this service Any such laboratories will be indicated within the
Laboratory Analytical Report
BRANCH LABORATORY LOCATIONS
eli-b Energy Laboratories Inc Billings MT
eli-g Energy Laboratories Inc Gillette WY
eli-h Energy Laboratories Inc Helena MT
eli-r Energy Laboratories Inc Rapid City SD
eli-t Energy Laboratories Inc College Station TX
CERTIFICATIONS
USEPA WY00002 Radiochemical WY00937 FL-DOH NELAC E87641 Radiochemical E871017 Califomia 02118CA
Oregon WY200001 Utah 3072350515 Virginia 00057 Washington C1903
ISO 17025 DISCLAIMER
The results of this Analytical Report relate only to the items submitted for analysis
ENERGY LABORATORIES INC CASPERWY certifies that certain method selections contained in this report meet
requirements as set forth by the above accrediting authorities Some results requested by the client may not be covered
under these certifications All analysis data to be submitted for regulatory enforcement should be certified in the sample
state of origin Please verify ELIs certification coverage by visiting www.energylab.com
ELI appreciates the opportunity to provide you with this analytical service For additional information and services visit our
web page www.energybb.com
June Ground Water CASE NARRATIVE
ENERGY
LARORA TORIES
THIS IS THE FINAL PAGE OF THE LABORATORY ANALYTICAL REPORT
Attachment
ENERO VLABORA TORIES INC 2393 Sail Creek Hibway 82601 P0 Box 3258 Casper WY82602
Toil Free 888.235.0515 3072350515 Fax [phone] casper4energy/ab.com wwwenergy/ab.coinEIERGY
LAI3ORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Groundwater Re-Sample Collection Date 05/27/09 1428
Lab ID C09050941 -001 DateReceived 05/29109
Client Sample ID MW Matrix Aqueous
MCL
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 ND mgL A2320 06/03109 0138 IjI
Bicarbonate as HCO3 304 mgL A2320 06/03/09 0138 IjI
Calcium 165 mgIL E200.7 06/16/09 0049 aae
Chloride 16 mgIL A4500-Cl 06/10/09 1051 ja
Fluoride 0.3 mgL 0.1 A4500-F 06105109 1316 IjI
Magnesium 63.1 mgIL 0.9 E200.7 06/16/09 0049 aae
Nitrogen Ammonia as 0.05 mgL 0.05 A4500-NH3 06/17/09 1027 Ijal
Nitrogen NitrateNitrite as 0.2 mgIL 0.1 E353.2 06/05/09 1144 /jal
Potassium 6.4 mg/L 0.5 E200.7 06/13/09 0043/aae
Sodium 158 mgIL 0.5 E200.7 0616/09 2023 aae
Sulfate 744 mgL A4500-504 06/10/09 1358 Ijal
PHYSICAL PROPERTIES
pH 7.39 s.u 0.01 A4500-H 06/01/09 1059/dd
Solids Total Dissolved TDS 180 1330 mgIL 10 A2540 06/01/09 1351 rp
METALS DISSOLVED
Arsenic ND ug/L 5.0 E200.8 06/05/09 1641 ts
Beryllium ND ug/L 0.50 E200.8 06/05/09 1641 Its
Cadmium ND ugIL 0.50 E200.8 06/05/09 1641 /ts
Chromium ND ugIL 25 E200.8 06/05/09 1641 Its
Cobalt ND ugIL 10 E200.8 06/05/09 1641 Its
Copper ND ug/L 10 E200.8 06/05/09 1641 Its
Iron ND ug/L 30 E200.7 06/18/09 1601 Icp
Lead ND ug/L 1.0 E200.8 06/05/09 1641 Its
Manganese 79 ug/L 10 E200.8 06/05/09 164 ts
Mercury ND ugIL 0.50 E200.8 06105109 1641 Its
Molybdenum ND ugIL 10 E200.8 06/05/09 1641 /ts
Nickel ND ug/L 20 E200.8 06105109 1641 /ts
Selenium ND ugIL 5.0 E200.8 06/05/09 1641 Its
Silver ND ugIL 10 E200.8 06/05109 1641 /ts
Thallium ND ugIL 0.50 E200.8 06105/09 1641 /ts
Tin ND ugIL 100 E200.8 06/05/09 1641 /ts
Uranium 0.37 ugIL 0.30 E200.8 06/05/09 1641 Its
Vanadium ND ugIL 15 E200.8 06105109 1641 /ts
Zinc ND ugIL 10 E200.8 06/05/09 1641 Its
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 0.7 pCi/L E900.1 06111/09 1430/cgr
Gross Alpha minus Rn Precision 0.6 pCi/L E900.1 06/11/09 1430 cgr
Gross Alpha minus Rn MDC 0.9 pCiIL E900.1 06/11109 14301 cgr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration RL increased due to sample matrix interference
Not detected at minimum detectable concentration
ENERGVLJ4 flORA TORIES INC P2393 Sail Creek Hibway 82601 RO Box 3258 Caspe.c WY82602A17ToilFree 888.235.0515 307235.0515 Fax [phone] casperenergy/ab.ooay www.energylab.com
LABOR/i TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Groundwater Re-Sample Collection Date 05/27/09 1428
Lab ID C09050941001 DateReceived 05/29/09
Client Sample ID MW Matrix Aqueous
MCL
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
DATA QUALITY
NC Balance -1.13 Calculation 06/18/09 0916 Ikbh
Anions 21.0 meq/L Calculation 06/18/09 0916 kbh
Cations 20.5 meq/L Calculation 06/18/09 0916 kbh
Solids Total Dissolved Calculated 1300 mg/L Calculation 06/18/09 0916 kbh
TDS Balance 0.50-1.20 1.02 Calculation 06/18/09 0916 kbh
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 5W8260B 06/04/09 1505 /jlr
Benzene ND ug/L 1.0 5W8260B 06/04/09 1505 jlr
Carbon tetrachloride ND ug/L 1.0 5W8260B 06/04/09 1505 /jlr
Chloroform ND ug/L 1.0 5W8260B 06/04/09 1505 /jlr
Chloromethane ND ug/L 1.0 SW8260B 06/04/09 1505 /jlr
Methyl ethyl ketone ND ug/L 20 5W82605 06/04/09 1505 /jlr
Methylene chloride ND ug/L 1.0 5W8260B 06/04/09 1505/jlr
Naphthalene ND ug/L 1.0 SW8260B 06/04/09 1505 jIr
Toluene ND ug/L 1.0 5W8260B 06/04/09 15.05 /jlr
Xylenes Total ND ug/L 1.0 SW8260B 06/04/09 1505 jlr
Surr Dibromofluoromethane 118 %REC 70-130 5W8260B 06/04/09 1505 /jlr
Surr p-Bromofluorobenzene 111 %REC 80-120 SW8260B 06/04/09 1505 /jlr
Surr Toluene-d8 98.0 %REC 80-120 5W8260B 06/04/09 1505/jlr
Surr 12-Dichlorobenzene-d4 101 %REC 80-120 5W8260B 06/04/09 1505 /jlr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions DCL Quality control limit ND Not detected at the reporting limit
ENERGYLASORA TORIES INC 2393 Sail CreekHighway 82601 P0 Box 3258 Caspei WV82602
____________Toil Free 888.235 0515 307235.0515 Fax [phone] .caspergionergylab.com www.anergylab.com
LABORATORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/08/09
Project 2nd Quarter Groundwater Resample Collection Date 05/29/09 1037
Lab ID C09060101-001 DateReceived 06/02/09
Client Sample ID MW Matrix Aqueous
MCL/
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 ND mg/L A2320 06/03/09 2129 Iji
Bicarbonate as HC03 384 mg/L A2320 06/03/09 2129 Iji
Calcium 346 mg/L E200.7 06/18/09 1633 /cp
Chloride mgL A4500-Cl 06/1 0/09 1219 Ija
Fluoride 0.3 mg/L 0.1 A4500-F 06/08/09 15.09 IjI
Magnesium 95.4 mg/L 0.5 E200.7 06/18/09 1633 cp
Nitrogen Ammonia as ND mg/L 0.05 A4500-NH3 06/19/09 1324/jal
Nitrogen NitrateNitrite as ND mg/L 0.1 E353.2 06/05/09 1332 /jal
Potassium 9.8 mg/L 0.5 E200.7 06/18/09 1633 cp
Sodium 512 mg/L E200.7 06/18/09 1633/cp
Sulfate 1980 mg/L 30 A4500-S04 06/05/09 1346/jal
PHYSICAL PROPERTIES
pH 7.32 s.u 0.01 A4500-H 06/02/09 1647/dd
Solids Total Dissolved TDS 180 3130 mg/L 10 A2540 06/03/09 1057 rp
METALS DISSOLVED
Arsenic ND ug/L 5.0 E200.8 06/05/09 1756 /ts
Beryllium ND ug/L 0.50 E200.8 06/05/09 1756 ts
Cadmium ND ug/L 0.50 E200.8 06/05/09 1756/ts
Chromium ND ug/L 25 E200.8 06/05/09 1756 /ts
Cobalt ND ug/L 10 E200.8 06/05/09 1756/ts
Copper ND ug/L 10 E200.8 06/05/09 1756 ts
Iron ND ug/L 30 E200.7 06/18/09 1633 /cp
Lead ND ug/L 1.0 E200.8 06/05/09 1756 ts
Manganese ND ug/L 10 E200.8 06/05/09 1756 ts
Mercury ND ug/L 0.50 E200.8 06/05/09 1756/ts
Molybdenum ND ug/L 10 E200.8 06/05/09 1756 ts
Nickel ND ug/L 20 E200.8 06/05/09 1756 ts
Selenium 13.4 ug/L 5.0 E200.8 06/05/09 1756/ts
Silver ND ug/L 10 E200.8 06/05/09 1756/ts
Thallium ND ug/L 0.50 E200.8 06/05/09 1756 ts
Tin ND ug/L 100 E200.8 06/05/09 1756/ts
Uranium 11.5 ug/L 0.30 E200.8 06/05/09 1756 /ts
Vanadium ND ugiL 15 E200.8 06/05/09 1756 ts
Zinc 45 ug/L 10 E200.8 06/05/09 1756/ts
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 1.1 pCi/L E900.1 06/15/092317/cgr
Gross Alpha minus Rn Precision 0.4 pCi/L E900 06/15/09 2317 cgr
Gross Alpha minus Rn MDC 0.3 pCi/L E900.1 06/15/09 2317 cgr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration RL increased due to sample matrix interference
ENERO VLABORA TORIES INC p2393 Sail CreekHihway 82601 P0 Box 3258 Caspei WY82602
Toll Free 888.235.0515 307.235 0515 Fax [phone] [e-mail] wwwenergy/ab.com
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/08/09
Project 2nd Quarter Groundwater Resample Collection Date 05/29/09 1037
Lab ID C09060101-001 DateReceived 06/02/09
Client Sample ID MW Matrix Aqueous
MCL/
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
DATA QUALITY
A/C Balance -0.0823 Calculation 06/19/09 1344 kbh
Anions 47.8 meqlL Calculation 06/19109 1344 kbh
Cations 47.7 meq/L Calculation 06/19/09 1344 kbh
Solids Total Dissolved Calculated 3160 mg/L Calculation 06/19/09 1344 kbh
TDS Balance 0.80 1.20 0.990 Calculation 06/19/09 13.44 kbh
VOLATILE ORGANIC COMPOUNDS
Acetone ND ugIL 20 SW8260B 06/04/09 1930/jIr
Benzene ND ug/L 1.0 SW8260B 06/04/09 1930/jlr
Carbon tetrachloride ND ug/L 1.0 5W8260B 06/04/09 1930/jlr
Chloroform ND ugIL 1.0 SW8260B 06/04/09 1930 /jlr
Chioromethane ND ug/L 1.0 SW82608 06/04/09 1930 Ijlr
Methyl ethyl ketone ND ug/L 20 SW8260B 06/04/09 1930 jir
Methylene chloride ND ug/L 1.0 SW8260B 06/04/09 1930 jlr
Naphthalene ND ug/L 1.0 SW8260B 06/04/09 1930 /jlr
Toluene ND ug/L 1.0 5W8260B 06/04/09 1930 /jlr
Xylenes Total ND ug/L 1.0 SW8260B 06/04/09 1930/jlr
Surr Dibromofluoromethane 110 %REC 70-130 SW8260B 06/04/09 1930/jlr
Surr p-Bromofluorobenzene 108 %REC 80-1 20 5W8260B 06/04/09 1930 /jlr
Surr Toluene-d8 96.0 %REC 80-120 SW8260B 06/04/09 1930/jlr
Surr 12-Dichlorobenzene-d4 98.0 %REC 80-120 SW8260B 06/04/09 1930/jlr
Report RL Analyte reporting limit MCL Maximum contaminant level
DefinItIons QCL Quality control limit ND Not detected at the reporting limit
ENERGYLAHORA TORIES INC p2393 Sail CreekHiqhway 82601 P0 Box 3258 Casper WY82602
To//Free 888.235.0515 307235.0515 Fax [phone] casperenergy/ab.com wiw.energy/ab.co/n
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Groundwater Re-Sample Collection Date 05/28/09 0816
Lab ID C09050941-002 DateReceived 05/29/09
Client Sample ID MW Matrix Aqueous
MCI
Analyses Result Units Qualifier RL QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 ND mg/L A2320 06/03/09 0146
Bicarbonate as HCO3 302 mg/I A2320 06/03/09 0146 ljI
Calcium 462 mg/L 2.5 E200.7 06/18/09 1613 cp
Chloride 68 mg/L A4500-Cl 06/10/09 1056 /ja
Fluoride 0.5 mg/I 0.1 A4500-F 06/05/09 1319 IjI
Magnesium 243 mg/I 0.86 E200.7 06/18/09 1613/cp
Nitrogen Ammonia as ND mg/L 0.05 A4500-Nl-13 06/17/09 1029/jal
Nitrogen NitrateNitrite as 0.3 mg/L 0.1 E353.2 06/05/09 1147 jal
Potassium 23.1 mg/L 0.5 E200.7 06/13/09 0048 aae
Sodium 780 mg/L 2.3 E200.7 06/18/09 1613 cp
Sulfate 3420 mg/L 30 A4500-504 06/23/09 1009 jal
PHYSICAL PROPERTIES
pH 6.63 s.u 0.01 A4500-H 06/01/09 1101 dd
Solids Total Dissolved TDS 180 5250 mg/L 10 A2540 06/01/09 1352 rp
METALS DISSOLVED
Arsenic ND ug/L 5.0 E200.8 06/05/09 1648 ts
Beryllium ND ug/L 0.50 E200.8 06/05/09 1648 ts
Cadmium 0.53 ug/L 0.50 E200.8 06/05/09 1648 ts
Chromium ND ug/I 25 E200.8 06/05/09 1648 ts
Cobalt ND ug/L 10 E200.8 06/05/09 1648 /ts
Copper ND ug/I 10 E200.8 06/05/09 1648 /ts
Iron ND ug/I 30 E200.8 07/07/09 1321 sml
lead ND ug/L 1.0 E200.8 06/05/09 1648 ts
Manganese 292 ug/L 10 E200.8 06/05/09 1648 ts
Mercury ND ug/L 0.50 E200.8 06/05/09 1648 ts
Molybdenum ND ug/L 10 E200.8 06/05/09 1648 /ts
Nickel ND ug/L 20 E200.8 06/05/09 1648 ts
Selenium 34.2 ug/L 5.0 E200.8 06/05/09 1648/ts
Silver ND ug/L 10 E200.8 06/05/09 1648 ts
Thallium 0.82 ug/L 0.50 E200.8 06/05/09 1648 ts
Tin ND ug/L 100 E200.8 06/05/09 1648/ts
Uranium 18.6 ug/L 0.30 E200.8 06/05/09 1648 /ts
Vanadium ND ug/I 15 E200.8 06/05/09 1648 /ts
Zinc 42 ug/L 10 E200.8 06/05/09 1648 /ts
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 1.2 pCi/L E900.1 06/18/09 1435 cgr
Gross Alpha minus Rn Precision 0.5 pCi/I E900.1 06/18/09 1435 cgr
Gross Alpha minus Rn MDC 0.4 pCi/L E900.1 06/18/09 1435 cgr
Report RI Analyte reporting limit MCI Maximum contaminant level
Definitions QCI Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration RI increased due to sample matrix interference
EtERGY
LALIORA TORIES
ENERGYLABORA TORiES INC 2393 Sail Creek Hiqbway 82601 P0 Box 3258 Caspet WY82602
Toil Free 888235.0515 3072350515 Fax [phone] casperenergy/ab.com wwwenergy/a/icom
LASORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Groundwater Re-Sample Collection Date 05/28/09 0816
Lab ID C09050941-002 DateReceived 05/29/09
Client Sample ID MW Matrix Aqueous
MCLJ
Analyses Result Units Qualifier RL QCL Method Analysis Date By
DATA QUALITY
A/C Balance -0.352 Calculation 06/25/09 0736 kbh
Anions 78.1 meq/L Calculation 06/25/09 0736 kbh
Cations 77.6 meq/L Calculation 06/25/09 0736 kbh
Solids Total Dissolved Calculated 5150 mg/L Calculation 06/25/09 0736 kbh
TDS Balance 0.80 1.20 1.02 Calculation 06/25/09 07.36 kbh
VOLATILE ORGANIC COMPOUNDS
Acetone ND ugIL 20 SW8260B 06/04/09 1543/jlr
Benzene ND ug/L 1.0 SW8260B 06/04/09 1543 jir
Carbon tetrachloride ND ug/L 1.0 SW8260B 06/04/09 1543 jlr
Chloroform ND ug/L 1.0 5W8260B 06/04/09 1543 jlr
Chloroniethane ND ug/L 1.0 SW8260B 06/04/09 1543/jlr
Methyl ethyl ketone ND ug/L 20 SW8260B 06/04/09 1543 /jlr
Methylene chloride ND ug/L 1.0 SW8260B 06/04/09 1543 /jlr
Naphthalene ND ug/L 1.0 SW8260B 06/04/09 1543 /jlr
Toluene ND ug/L 1.0 5W8260B 06/04/09 1543 jir
Xylenes Total ND ug/L 1.0 5W8260B 06/04/09 1543 /jlr
Surr Dibromofluoromethane 122 %REC 70-1 30 SW8260B 06/04/09 1543 /jlr
Surr p-Bromofluorobenzene 114 %REC 80-120 5W8260B 06/04/09 1543 jlr
Surr Toluene-d8 98.0 %REC 80-1 20 SW8260B 06/04109 1543 /jlr
Surr 12-Dichlorobenzene-d4 103 %REC 80-120 SW8260B 06/04/09 1543 /jlr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERO YLABORA TORIES INC P2393 Sail Creek Hiqhway 82601 RO Box 3258 Casper WV82602
To/I Free 885235.0515 307235.0515 Fax [phone] casperenergy/ab.corn www.energylab.comEIERGY
LAIJORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Groundwater Re-Sample Collection Date 05/28/09 0729
Lab ID C09050941 -003 DateReceived 05/29/09
Client Sample ID MW 3A Matrix Aqueous
MCL/
Analyses Result Units Qualifier RL QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 ND mg/L A2320 06103/09 0153 IjI
Bicarbonate as HCO3 306 mg/L A2320 06/03/09 0153 Iji
Calcium 436 mg/L E200.7 06/16/09 0059 aae
Chloride 60 mg/I A4500-Cl 06/10/09 1100/ja
Fluoride 1.6 mg/L 0.1 A4500-F 06/05/09 1322/IjI
Magnesium 303 mg/L 0.9 E200.7 06/16/09 0059 aae
Nitrogen Ammonia as ND mg/L 0.05 A4500-NH3 06/17/09 1205 /jal
Nitrogen NitrateNitrite as 1.2 mg/L 0.1 E353.2 06/05/09 1157/jal
Potassium 28.1 mg/L 0.5 E200.7 06/13/090053/ aae
Sodium 674 mg/L 0.5 E200.7 06/16/09 2034 aae
Sulfate 3640 mg/L 30 A4500-S04 06/23/09 1011 /jal
PHYSICAL PROPERTIES
pH 6.72 s.u 0.01 A4500-H 06/01/09 1103/dd
Solids Total Dissolved TDS 180 5660 mg/I 10 A2540 06/01/09 1352 rp
METALS DISSOLVED
Arsenic ND uglI 5.0 E200.8 06/05/09 1655 ts
Beryllium 2.59 ug/I 0.50 E200.8 06/05/09 1655 ts
Cadmium 5.16 ug/I 0.50 E200.8 06/05/09 1655 Its
Chromium ND ugIl 25 E200.8 06/05/09 1655 ts
Cobalt 12 uglI 10 E200.8 06/05/09 1655 ts
Copper ND ug/I 10 E200.8 06/05/09 1655 /ts
Iron ND ug/I 30 E200.8 07/07/09 1328 sml
lead ND ugIL 1.0 E200.8 06/05/09 1655 ts
Manganese 1060 ug/l 10 E200.8 06/05/09 1655 ts
Mercury ND ug/I 0.50 E200.8 06/05/09 1655 Its
Molybdenum ND ug/I 10 E200.8 06/05/09 1655 ts
Nickel 44 ug/L 20 E200.8 06/05/09 1655 ts
Selenium 102 ugIL 5.0 E200.8 06/05/09 1655 Its
Silver ND ug/l 10 E200.8 06/05/09 1655 Its
Thallium 1.11 uglI 0.50 E200.8 06/05/09 1655/ts
Tin ND ug/I 100 E200.8 06/05/09 1655/ta
uranium 17.0 ug/I 0.30 E200.8 06/05/09 1655 Its
Vanadium ND ug/L 15 E200.8 06/05/09 1655 ts
Zinc 169 ug/l 10 E200.8 06/05/09 1655 ts
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 2.8 pCi/L E900.1 06/11/09 1430 cgr
Gross Alpha minus Rn Precision 0.9 pCi/I E900.1 06/11/09 1430 cgr
Gross Alpha minus Rn MDC 0.9 pCi/L E900 06/11/09 1430 cgr
Report RI Analyte reporting limit MCI Maximum contaminant level
Definitions QCI Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration RI increased due to sample matrix interference
ENERO VLABORA TORIES INC 2393 Sail Creek Hi/iway 82801 P0 Box 3258 Caspei WV02602
To/I Free 888.235 0515 307235.0515 Fax [phone] [e-mail] wvwenergy/ab.com
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Groundwater Re-Sample Collection Date 05/28/09 0729
Lab ID C09050941003 DateReceived 05/29/09
Client Sample ID MW 3A Matrix Aqueous
MCLJ
Analyses Result Units Qualifier RL QCL Method Analysis Date By
DATA QUALITY
A/C Balance -3.69 Calculation 06/25/09 0736 kbh
Anions 82.7 meq/L Calculation 06/25/09 0736 kbh
Cations 76.8 meq/L Calculation 06/25/09 0736 kbh
Solids Total Dissolved Calculated 5300 mg/L Calculation 06/25/09 0736 kbh
TDS Balance 0.80-1.20 1.07 Calculation 06/25/09 0736 kbh
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 SW8260B 06/04/09 1621 /jlr
Benzene ND ug/L 1.0 SW8260B 06/04/09 1621 /jlr
Carbon tetrachloride ND ug/L 1.0 SW8260B 06/04/09 1621 /jlr
Chloroform ND ug/L 1.0 SW8260B 06/04/09 1621 /jlr
Chloromeihane ND ug/L 1.0 SW8260B 06/04/09 1621 /jlr
Methyl ethyl ketone ND ug/L 20 SW8260B 06/04/09 1621 /jlr
Methylene chloride ND ug/L 1.0 SW8260B 06/04/09 1621 /jlr
Naphthalene ND ug/L 1.0 SW8260B 06/04/09 1621 /jlr
Toluene ND ug/L 1.0 5W8260B 06/04/09 1621 /jlr
Xylenes Total ND ug/L 1.0 SW8260B 06/04/09 1621 /jlr
Surr Dibromofluoromethane 120 %REC 70-130 SW8260B 06104/09 1621 jlr
Surr p-Bromofluorobenzene 109 %REC 80-1 20 SW8260B 06/04/09 1621 /jlr
Surr Toluene-d8 99.0 %REC 80-1 20 5W8260B 06/04109 1621 /jlr
Surr 12-Dichlorobenzene-d4 101 %REC 80-120 SW8260B 06/04109 1621 /jlr
Report RL Analyte reporting limit MCL Maximum contaminanl level
Definitions QCL Quality control limit ND Not detected at the reporting limit
EN5RGY
LABC//1 TOP/ES
EIERCY
LASORA TORIES
Client
Project
Lab ID
Client Sample ID MW
Analyses
MAJOR IONS
Carbonate as C03
Bicarbonate as HCO3
Calcium
Chloride
Fluoride
Magnesium
Nitrogen Ammonia as
Nitrogen NitrateNitrite as
Potassium
Sodium
Sulfate
PHYSICAL PROPERTIES
pH
Solids Total Dissolved TDS 180
METALS DISSOLVED
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Iron
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Tin
Uranium
Vanadium
Zinc
RADIONLJCLIDES DISSOLVED
Gross Alpha minus Rn
Gross Alpha minus Rn Precision
Gross Alpha minus Rn MDC
Report RL Analyte reporting limit
Definitions QCL Quality control limit
ENERGYLABORA TORIES INC 2393 Sail Creak Hiqhway 82601 20 Rex 3258 Caspe WY82602
Toll Free 8882350515 3072350515 Fax [phone] casperenergy/ab.com wwwenergylab.com
LABORATORY ANALYTICAL REPORT
Denison Mines USA Corp Report Date 07/04/09
2nd Quarter Groundwater Collection Date 05/18109 0940
C09050570-001 DateReceived 05/19/09
Matrix Aqueous
MCU
Result Units Qualifier RL QCL Method Analysis Date By
ND mg/L A2320 05/22/09 0027 Iji
352 mg/L A2320 05/22/09 0027 ljl
221 mg/L E200.7 06/09/09 1619/aae
37 mg/L A4500-Cl 06/09/09 1241 Ijal
0.4 mg/L 0.1 A4500-FC 05/21/09 1141 fIjI
101 mg/L 0.9 E200.7 06/09/09 1619/ aae
ND mg/L 0.05 A4500-NH3 06/08/09 1454 jal
4.8 mg/L 0.2 E353.2 05/29/09 1142 jal
5.8 mg/L 0.5 E200.7 06/09/09 1619 aae
79.4 mg/L 0.5 E200.7 06/09/09 1619 /aae
868 mg/L 30 A4500-S04 05/28/09 1305/jal
7.27 s.u 0.01 A4500-H 05/20/09 1209/dd
1620 mg/L 10 A2540 05/20/09 1448 rp
ND ug/L 5.0 E200.8 05/27/09 00.16 /ts
ND ug/L 0.50 E200.8 05/27/09 0016 ts
ND ug/L 0.50 E200.8 05/27/09 0016 ts
ND ugIL 25 E200.8 05/27/09 0016 ts
ND ug/L 10 E200.8 05/27/09 0016/ts
ND ugIL 10 E200.8 05127/09 0016 Its
ND ugIL 30 E200.7 06/04/09 1714 aae
ND ug/L 1.0 E200.8 05/27/09 0016 ts
ND ug/L 10 E200.8 05/27/09 0016/ts
ND ug/L 0.50 E200.8 05/27/09 0016 Its
ND ugIL 10 E200.8 05/27/09 0016 ts
ND ugIL 20 E200.8 05/27/09 0016 ts
42.2 ug/L 5.0 E200.8 05/27/09 0016 ts
ND ug/L 10 E200.8 05/27/09 1848 /ts
ND ugIL 0.50 E200.8 05/27/09 0016 ts
ND ug/L 100 E200.8 05/27/09 0016 ts
7.85 ug/L 0.30 E200.8 05/27109 0016 /ts
ND ugIL 15 E200.8 05/27/090016/ts
ND ug/L 10 E200.8 05/27/090016/ts
0.6 pCi/L E900.1 06/08/09 1359 cgr
0.3 pCi/L E900.1 06/08/09 1359 cgr
0.4 pCi/L E900.1 06/08/09 1359/cgr
MCL Maximum contaminant level
ND Not detected at the reporting limit
MDC Minimum detectable concentration RL increased due to sample matrix interference
ENERG YLABORA TORIES INC -2393 Sail CreekHibway 8260 PC Box 3258 Casper WY82602
Toil Free 888.235.0515 307235.0515 Fax [phone] casperc4energy/ab.com www.energylab.com
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/04/09
Project 2nd Quarter Groundwater Collection Date 05/18/09 0940
Lab ID C09050570-001 Datefteceived 05/19/09
Client Sample ID MW Matrix Aqueous
MCL/
Analyses Result Units Qualifier RL QCL Method Analysis Date By
DATA QUALITY
A/C Balance -4.81 Calculation 07104109 1038 sdw
Anions 25.2 meq/L Calculation 07104/09 1038/ sdw
Cations 22.9 meq/L Calculation 07/04/09 1038 sdw
Solids Total Dissolved Calculated 1510 mg/L Calculation 07/04/09 1038/sdw
TDS Balance 0.80 1.20 1.01 Calculation 07/04/09 1038 sdw
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 5W8260B 05/20/09 2007 wen
Benzene ND ug/L 1.0 SW8260B 05/20/09 2007 wen
Carbon tetrachloride 1.5 ugiL 1.0 5W8260B 05/20/09 2007 wen
Chloroform 2000 ug/L 100 SW8260B 05/20/09 1427/wen
Chloromethane ND ug/L 1.0 5W8260B 05/20/09 2007 wen
Methyl ethyl ketone ND ug/L 20 5W8260B 05/20/09 2007 wen
Methylene chloride ND ug/L 1.0 SW8260B 05/20/09 2007 wen
Naphthalene ND ug/L 1.0 5W8260B 05/20/09 2007 wen
Toluene ND ugh 1.0 5W82608 05/20/09 2007 wen
Xylenes Total ND ug/L 1.0 SW8260B 05/20/09 2007 wen
Sum Dibromofluoromethane 126 %REC 70-130 SW8260B 05/20/09 2007 wen
Surr p-Bromofluorobenzene 120 %REC 80-120 5W8260B 05/20/09 2007 wen
Surr Toluene-d8 102 %REC 80-120 SW8260B 05/20/09 2007 /wen
Surr 2-Dichlorobenzene-d4 114 %REC 80-120 SW8260B 05/20/09 2007 wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
EfERGY
LABORATORIES
ENERG YLABORA TORIES INC 2393 Sail Creek Hibway 82601 P0 Box 3258 Casper WY82602
Toll Free 888.235.0515 307235.0515 Fax [phone] caspenenergyIab.com wwwenergy/ab.comEPERGY
LAI3ORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/04109
Project 2nd Quarter Groundwater Collection Date 05/16/09 1332
Lab ID C09050570-002 DateReceived 05/19/09
Client Sample ID MW Matrix Aqueous
MCLJ
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 ND mg/L A2320 05/22/09 0035/IjI
Bicarbonate as HC03 383 mg/L A2320 05/22/09 0035 Iji
Calcium 130 mg/L E200.7 06/09/09 1625 aae
Chloride 44 mg/L A4500-CI 06/09/09 1242 /jal
Fluoride 1.0 mg/L 0.1 A4500-F 05/21/09 1144 iji
Magnesium 38.0 mg/L 0.9 E200.7 06/09/09 1625 aae
Nitrogen Ammonia as 0.30 mg/L 0.05 A4500-NH3 06/08/09 1456 /jal
Nitrogen NitrateNitrite as ND mg/L 0.1 E353.2 05/29/09 1235 /jal
Potassium 7.0 mg/L 0.5 E200.7 06/09/09 1625 aae
Sodium 467 mg/L 0.5 E200.7 06/09/09 1625 aae
Sulfate 1130 mg/L 10 A4500-504 06/09/09 1300 /jal
PHYSICAL PROPERTIES
pH 7.73 s.u 0.01 A4500-H 05/20/09 1212 dd
Solids Total Dissolved TDS 180 2000 mg/L 10 A2540 05/20/09 1448 rp
METALS DISSOLVED
Arsenic ND ug/L 5.0 E200.8 05/27/09 0023 ts
Beryllium ND ug/L 0.50 E200.8 05/27/09 0023 ts
Cadmium ND ug/L 0.50 E200.8 05/27109 0023 ts
Chromium ND ug/L 25 E200.8 05/27/09 0023 ts
Cobalt ND ug/L 10 E200.8 05/27/09 0023 Its
Copper ND ug/L 10 E200.8 05/27/09 0023 ts
Iron 80 ug/L 70 E200.7 06/04/09 1720 aae
Lead ND ug/L 1.0 E200.8 05/27/09 0023 ts
Manganese 249 ug/L 10 E200.8 05/27/09 0023 ts
Mercury ND ug/L 0.50 E200.8 05/27/09 0023/ts
Molybdenum ND ug/L 10 E200.8 05/27/09 0023 /ts
Nickel ND ug/L 20 E200.8 05/27/09 0023 /ts
Selenium ND ug/L 5.0 E200.8 05/27/09 0023 ts
Silver ND ug/L 10 E200.8 05/27/09 1855 ts
Thallium ND ug/L 0.50 E200.8 05/27/09 0023 ts
Tin ND ug/L 100 E200.8 05/27/09 0023/ts
Uranium ND ug/L 0.30 E200.8 05/27/09 0023 ts
Vanadium ND ug/L 15 E200.8 05/27/09 0023 ts
Zinc ND ug/L 10 E200.8 05/27/09 0023 ts
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 0.6 pCi/L E900.1 06/08/09 1359 cgr
Gross Alpha minus Rn Precision 0.3 pCi/L E900.1 06/08/09 1359 cgr
Gross Alpha minus Rn MDC 0.4 pCi/L E900.1 06/08/09 1359/cgr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration RL increased due to sample matrix interference
ENERGVLASORA TORIES INc 2393 Sail CreekHiq/iway 82601 EQ Box .t258 caspe WY82602
Toll Free 888.235.0515 307235.0515 Fax [phone] casperenergy/ab.com www.energylab.comEIERGY
LABO/A TOP/ES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/04/09
Project 2nd Quarter Groundwater Collection Date 05/16/09 1332
Lab ID C09050570-002 DateReceived 05/19/09
Client Sample ID MW Matrix Aqueous
MW
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
DATA QUAUTY
NC Balance -1.55 Calculation 06111/09 0909 kbh
Anions 31.1 meqL Calculation 06111/09 0909 kbh
Cations 30.1 meqL Calculation 06111/090909 kbh
Solids Total Dissolved Calculated 2000 mgL Calculation 06/11/09 0909 kbh
TDS Balance 0.80 1.20 1.00 Calculation 06/11/09 0909 kbh
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 SW8260B 05/20/09 1505 wen
Benzene ND ugL 1.0 5W8260B 05/20/09 1505 wen
Carbon tetrachioride ND ugL 1.0 5W8260B 05/20/09 1505 wen
Chloroform ND ugL 1.0 SW8260B 05/20/09 1505wen
Chloromethane ND ugL 1.0 SW8260B 05/20109 1505 wen
Methyl ethyl ketone ND ugL 20 SW8260B 05/20/09 1505 wen
Methylene chloride ND ug/L 1.0 SW8260B 05/20/09 1505 wen
Naphthalene ND ugL 1.0 5W8260B 05/20/09 1505 wen
Toluene ND ugL 1.0 8W8260B 05/20/09 1505 wen
Xylenes Total ND ug/L 1.0 SW8260B 05/20/09 1505 wen
Surr Dibromofluoromethane 117 %REC 70-130 5W8260B 05/20109 1505 wen
Surr p-Bromofluorobenzene 115 %REC 80-120 SW8260B 05/20/09 1505 wen
Surr Toluene-d8 104 %REC 80-120 SW8260B 05/20/09 1505 wen
Surr 2-Dichlorobenzene-d4 113 %REC 80-120 SW8260B 05/20/09 1505 wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
EtERGY
LA/3ORA TORIES
Client
Project
Lab ID
Client Sample ID
Analyses
MAJOR IONS
Carbonate as C03
Bicarbonate as HCO3
Calcium
Chloride
Fluoride
Magnesium
Nitrogen Ammonia as
Nitrogen NitrateNitrite as
Potassium
Sodium
Sulfate
PHYSICAL PROPERTIES
pH
Solids Total Dissolved TDS 180
METALS DISSOLVED
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Iron
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Tin
Uranium
Vanadium
Zinc
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn
Gross Alpha minus Rn Precision
Gross Alpha minus Rn MDC
Report RL Analyte reporting limit
Definitions QCL Quality control limit
MDC Minimum detectable concentration
ENERG VLABORA TORIES INC 2393 Sail CreekHbway 82601 P0 Box 3258 Caspe W82602
Toll Free 888.235.0515 3072350515 Fax [phone] casperenergy/ab.com www.energylab.com
LABORATORY ANALYTICAL REPORT
Denison Mines USA Corp Report Date 07/04/09
2nd Quarter Groundwater Collection Date 05/17/09 0557
C09050570-003 DateReceived 05/19/09
MW 11 Matrix Aqueous
MCL/
Result Units Qualifiers RL QCL Method Analysis Date By
mg/L A2320 05/22/09 0043 IJI
366 mg/L A2320 05/22/09 0043 IjI
36 mg/L E200.7 06/09/09 164 aae
26 mg/L A4500-CI 06/09/09 1243 /jaI
0.6 mg/L 0.1 A4500-F 05/21/09 1147 Iji
10.0 mg/L 0.9 E200.7 06/09/09 1641 aae
0.47 mg/L 0.05 A4500-NH3 06/08/09 1457 /jal
ND mg/L 0.1 E353.2 05/29/09 1215 /jal
5.9 mg/L 0.5 E200.7 06/09/09 1641 /aae
548 mg/L 0.5 E200.7 06/09/09 1641 /aae
1060 mg/L 10 A4500-504 06/09/09 1302/jal
8.03 s.u 0.01 A4500-H 05/20/09 1214 dd
1850 mg/L 10 A2540 05/20/09 1448 rp
ND ug/L 5.0 E200.8 05/27/09 0030 ts
ND ug/L 0.50 E200.8 05/27/09 0030 ts
ND ug/L 0.50 E200.8 05/27/09 0030 ts
ND ug/L 25 E200.8 05/27/09 0030 ts
ND ug/L 10 E200.8 05/27/09 0030/ts
ND ug/L 10 E200.8 05/27/09 0030 ts
77 ug/L 70 E200.7 06/04/09 1725 aae
ND ug/L 1.0 E200.8 05/27/09 0030 ts
67 ug/L 10 E200.8 05/27/09 0030/ts
ND ug/L 0.50 E200.8 05/27/09 0030 ts
ND ug/L 10 E200.8 05/27/09 0030 ts
ND ug/L 20 E200.8 05/27/09 0030 ts
ND ug/L 5.0 E200.8 05/27/09 0030 ts
ND ug/L 10 E200.8 05/27/09 1902 ts
ND ug/L 0.50 E200.8 05/27/09 0030 ts
ND ug/L 100 E200.8 05/27/09 0030 ts
ND ug/L 0.30 E200.8 05/27/09 0030 ts
ND ug/L 15 E200.8 05/27/09 0030 ts
ND ug/L 10 E200.8 05/27/09 0030/ts
0.8 pCi/L E900.1 06/08/09 1359 cgr
0.4 pCi/L E900.1 06/08/09 1359 cgr
0.4 pCi/L E900.1 06/08/09 1359 cgr
MCL Maximum contaminant level
ND Not detected at the reporting limit
RL increased due to sample matrix interference
ENERG VLASORA4 TORIES INC 2393 Sail CreekHiqbway 82601 P0 Box 3258 Casper WV82602
Toil Free 888.235.0515 3072350515 Fax [phone] casper6energy/ab.corn www energylab cornEN5RGY
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/04/09
Project 2nd Quarter Groundwater Collection Date 05/17/09 0857
Lab ID C09050570-003 DateReceived 05/19/09
Client Sample ID MW 11 Matrix Aqueous
MCLI
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
DATA QUALITY
A/C Balance -4.23 Calculation 06/11/09 0910/kbh
Anions 29.0 meqlL Calculation 06/11/09 0910/kbh
Cations 26.6 meq/L Calculation 06/11/09 0910 kbh
Solids Total Dissolved Calculated 1870 mg/L Calculation 06/11/09 0910/kbh
TDS Balance 0.80-1.20 0.990 Calculation 06/11/09 0910 kbh
VOLATILE ORGANIC COMPOUNDS
Acetone ND ugIL 20 SW8260B 05/20/09 1543 wen
Benzene ND ugIL 1.0 SW8260B 05/20/09 1543 wen
Carbon tetrachloride ND ugIL 1.0 SW8260B 05/20/09 1543/wen
Chloroform ND ug/L 1.0 SW8260B 05/20/09 1543 wen
Chloromethane ND ug/L 1.0 SW8260B 05/20/09 1543 wen
Methyl ethyl ketone ND ugIL 20 SW8260B 05/20/09 1543 wen
Methylene chloride ND ug/L 1.0 SW8260B OS/2 0/09 1543 wen
Naphthalene ND ug/L 1.0 SW8260B 05/20/09 1543 wen
Toluene ND ug/L 1.0 SW8260B 05/20/09 1543 wen
Xylenes Total ND ugIL 1.0 SW8260B 05/20/09 1543 wen
Surr Dibromofluoromethane 117 %REC 70-130 SW8260B 05/20/09 1543 wen
Surr p-Bromofluorobenzene 120 %REC 80-120 SW8260B 05/20/09 1543 wen
Surr Toluene-d8 104 %REC 80-120 SW8260B 05/20/09 1543 wen
Surr 2-Dichlorobenzene-d4 114 %REC 80-1 20 5W8260B 05/20/09 1543 wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERO YLABORA TORIES INC 2393 Sail Creek Hqbway 8260 80 Box 3258 Casper WY82602
Toll Free 888.235 0515 307235.0515 Fax [phone] casper4energy/a/i.com wwwenergy/ab.coinEIERGY
LABORATORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/04/09
Project 2nd Quarter Groundwater Collection Date 05/16/09 1516
Lab ID 009050570-004 DateReceived 05/19/09
Client Sample ID MW 12 Matrix Aqueous
MCI
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 ND mg/L A2320 05/22/09 0053/IjI
Bicarbonate as HCO3 445 mg/L A2320 05/22/09 0058 IJI
Calcium 448 mg/L E200.7 06/12/09 0151 /aae
Chloride 51 mg/I A4500-Cl 06/09/09 1245 /jal
Fluoride 0.3 mg/I 0.1 A4500-F 05/21/09 1149/IjI
Magnesium 190 mg/I 0.9 E200.7 06/12/090151 aae
Nitrogen Ammonia as ND mg/I 0.05 A4500-NH3 06/08/09 1500 /jal
Nitrogen NitrateNitrite as ND mg/I 0.1 E353.2 05/29/09 1217 /jal
Potassium 12.8 mg/I 0.5 E200.7 06/12/092336 aae
Sodium 273 mg/I E200.7 06/12/090151 /aae
Sulfate 2350 mg/I 30 A4500-S04 06/09/09 1304 jal
PHYSICAL PROPERTIES
pH 7.20 s.u 0.01 A4500-H 05/20/09 1216/dd
Solids Total Dissolved TDS 180 3820 mg/I 10 A2540 05/20/09 1449 rp
METALS DISSOLVED
Arsenic ND ug/I 5.0 E200.8 05/27/09 0104 ts
Beryllium ND ug/I 0.50 E200.8 05/27/09 0104 ts
Cadmium ND ug/L 0.50 E200.8 05/27/09 0104/ts
Chromium ND ug/I 25 E200.8 05/27/09 0104 ts
Cobalt ND ug/I 10 E200.8 05/27/090104 /ts
Copper ND ug/I 10 E200.8 05/27/09 0104 ts
Iron ND ug/I 30 E200.7 06/04/09 1730 aae
Lead ND ug/I 1.0 E200.8 05/27/09 0104 ts
Manganese 33 ug/I 10 E200.8 05/27/090104 /ts
Mercury ND ug/I 0.50 E200.8 05/27/09 0104 ts
Molybdenum ND ug/I 10 E200.8 05/27/090104 /ts
Nickel ND ug/I 20 E200.8 05/27/09 0104 ts
Selenium 10.2 ug/I 5.0 E200.8 05/27/09 0104/ts
Silver ND ug/I 10 E200.8 05/27/09 1909 /ts
Thallium ND ug/I 0.50 E200.8 05/27/09 0104 ts
Tin ND ug/I 100 E200.8 05/27/09 0104 /ts
Uranium 16.7 ug/I 0.30 E200.8 05/27/09 0104 ts
Vanadium ND ug/I 15 E200.8 05/27/09 0104 ts
Zinc ND ug/L 10 E200.8 05/27/09 0104/ts
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 1.8 pCi/I E900.1 06/08/09 1359 cgr
Gross Alpha minus Rn Precision 0.5 pCi/I E900.1 06/08/09 1359 cgr
Gross Alpha minus Rn MDC 0.4 pCi/L E900.1 06/08/09 1359/cgr
Report RI Analyte reporting limit MCI Maximum contaminant level
Definitions QCI Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration RI increased due to sample matrix interference
ENERGYLABORA TORIES INC 2393 Sail Creek Hibway 82601 RU Box 3258 Caspei WY82602
roil Free 888.235.0515 307235.0515 Fax [phone] casperenergy/ab.com www.energylab.com
LABORATORY ANALYTICAL REPORT
Report Date 07/04/09
Collection Date 05/16/09 1516
DateReceived 05/19/09
Matrix Aqueous
ENSRGY
LASO/A TOP/ES
Client
Project
Lab ID
Client Sample ID MW 12
DATA QUALITY
NC Balance
Anions
Cations
Solids Total Dissolved Calculated
TDS Balance 0.80-1.20
-4.35
54.8 meq/L
50.2 meq/L
3410
1.12
mg/L
Calculation 06116/09 0817 kbh
Calculation 06/16/09 0817 kbh
Calculation 06/16/09 0817 kbh
Calculation 06/16/09 0817 kbh
Calculation 06/16/09 0817 kbh
VOLATiLE ORGANIC COMPOUNDS
Acetone
Benzene
Carbon tetrachioride
Chloroform
Chloromethane
Methyl ethyl ketone
Methylene chloride
Naphthalene
Toluene
Xylenes Total
Surr Dibromofluoromethane
Surr p-Bromofluorobenzene
Surr Toluene-d8
Surr 2-Dichlorobenzene-d4
Report RL Analyte reporting limit
Definitions QCL Quality control limit
MCL Maximum contaminant level
ND Not detected at the reporting limit
Denison Mines USA Corp
2nd Quarter Groundwater
C09050570-004
Analyses Result Units Qualifiers RL
MCLI
QCL Method Analysis Date By
ND ug/L 20 SW8260B 05/20/09 1621 wen
ND ug/L 1.0 5W8260B 05/20/09 1621 Iwen
ND ug/L 1.0 SW8260B 05/20/09 1621 /wen
ND ug/L 1.0 SW8260B 05120/09 1621 /wen
ND ug/L 1.0 SW8260B 05/20/09 1621 wen
ND ug/L 20 SW8260B 05/20/09 1621 /wen
ND ug/L 1.0 SW8260B 05/20/09 1621 /wen
ND ugIt 1.0 5W8260B 05/20/09 1621 /wen
ND ug/L 1.0 SW8260B 05/20/09 1621 /wen
ND ug/L 1.0 SW8260B 05/20/09 1621 /wen
120 %REC 70-130 SW8260B 05/20/09 1621 /wen
122 %REC 80-120 SW8260B 05/20/09 1621 /wen
103 %REC 80-120 SW8260B 05/20/09 1621 /wen
113 %REC 80-120 SW8260B 05/20/09 1621 /wen
Spike recovery outside of advisory limits
EIERGY
LAI3ORA TORIES
Client
Project
Lab ID C09050570-005
Client Sample ID MW 14
Analyses
MAJOR IONS
Carbonate as C03
Bicarbonate as HCO3
Calcium
Chloride
Fluoride
Magnesium
Nitrogen Ammonia as
Nitrogen NitrateNitrite as
Potassium
Sodium
Sulfate
PHYSICAL PROPERTIES
pH
Solids Total Dissolved TDS 180
METALS DISSOLVED
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Iron
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Tin
Uranium
Vanadium
Zinc
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn
Gross Alpha minus Rn Precision
Gross Alpha minus Rn MDC
Report RL Analyte reporting limit
Definitions QCL Quality control limit
ENERG YLAHORA TORIES INC 2393 Salt CreekHlq/lway 82601 P0 Box 3258 Caspec WY82602
Toll Free 886235 0515 307235.0515 Fax [phone] casperenergylab.com wwwenergylab.coin
LABORATORY ANALYTICAL REPORT
Denison Mines USA Corp Report Date 07/04109
2nd Quarter Groundwater Collection Date 05/16/09 0859
DateReceived 05/19/09
Matrix Aqueous
MCL
Result Units Qualifiers RL QCL Method Analysis Date By
ND mg/L A2320 05/22/09 0105 Iji
468 mg/L A2320 05/22/09 0105 ljl
473 mg/I E200.7 06/12/09 0157/aae
18 mg/I A4500-Cl 06/09/09 1246 /jal
0.2 mg/I 0.1 A4500-FC 05/21/09 1158/ljl
142 mg/I 0.9 E200.7 06/12/090157 aae
ND mg/L 0.05 A4500-NH3 06/08/09 1502 Ijal
ND mg/L 0.1 E353.2 05/29/09 1220 /jal
11.8 mg/L 0.5 E200.7 06/12/09 2342 aae
331 mg/L E200.7 06/12/090157/aae
2140 mg/I 30 A4500-S04 05/28/09 1312 /jal
7.20 s.u 0.01 A4500-H 05/20/09 1219 dd
3630 mg/L 10 A2540 05/20/09 1450 rp
ND ug/I 5.0 E200.8 05/27/09 0110/ts
ND ug/I 0.50 E200.8 05/27/09 0110/ts
0.93 ug/L 0.50 E200.8 05/27/09 0110/ts
ND ug/L 25 E200.8 05/27/09 0110/ts
ND ug/L 10 E200.8 05/27/09 0110/ts
ND ug/L 10 E200.8 05/27/09 0110/ts
ND ug/I 30 E200.7 06/04/09 1805 aae
ND ug/I 1.0 E200.8 05/27/09 0110/ts
1940 ug/L 10 E200.8 05/27/090110/ts
ND ug/L 0.50 E200.8 05/27/09 0110/ts
ND ug/L 10 E200.8 05/27/09 0110/ts
ND ug/I 20 E200.8 05/27/090110/ts
ND ug/I 5.0 E200.8 05/27/090110/ts
ND ug/I 10 E200.8 05/27/09 1915/ts
ND ug/L 0.50 E200.8 05/27/09 0110/ts
ND ug/I 100 E200.8 05/27/090110/ts
60.5 ug/L 0.30 E200.8 05/27/09 0110/ts
ND ug/L 15 E200.8 05/27/09 0110/ts
ND ug/L 10 E200.8 05/27/09 0110 ts
1.2 pCi/I E900.1 06/08/09 1359/cgr
0.4 pCi/L E900.1 06/08/09 1359 cgr
0.4 pCi/L E900 06/08/09 1359 cgr
MCI Maximum contaminant level
ND Not detected at the reporting limit
MDC Minimum detectable concentration Ri increased due to sample matrix interference
ENERGYLABORA TORIES INC 2393 Sail Creek Hihway 82601 P0 Box 3258 aspefl WV82602
Toll Free 886235.0515 307235 0515 Fax [phone] casperenergy/ab.com ww.energy/ab.comEIERGY
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/04/09
Project 2nd Quarter Groundwater Collection Date 05/16/09 0859
Lab ID C09050570-005 DateReceived 05/19/09
Client Sample ID MW 14 Matrix Aqueous
MCLI
Analyses Result Units Qualifiers RL QCL Method AnalysIs Date By
DATA QUALITY
NC Balance -2.67 Calculation 06/16/09 0819 kbh
Anions 52.7 meqL Calculation 06/16/09 0819/kbh
Cations 50.0 meq/L Calculation 06/16/09 0819 kbh
Solids Total Dissolved Calculated 3340 mg/L Calculation 06116109 0819 kbh
TDS Balance 0.80-1.20 1.09 Calculation 06116/0908191 kbh
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 5W8260B 05/20/09 1658 wen
Benzene ND ug/L 1.0 5W82608 05/20/09 1658 /wen
Carbon tetrachloride ND ug/L 1.0 5W8260B 05/20/09 1658 /wen
Chloroform ND ug/L 1.0 5W8260B 05/20/09 1658 wen
Chloromethane ND ug/L 1.0 5W8260B 05/20/09 1656 wen
Methyl ethyl ketone ND ug/L 20 5W8260B 05/20/09 1658/wen
Methylene chloride ND ug/L 1.0 5W8260B 05/20/09 1658 wen
Naphthalene ND ug/L 1.0 5W8260B 05/20/09 1658 /wen
Toluene ND ug/L 1.0 SW8260B 05/20/09 1658/wen
Xylenes Total ND ug/L 1.0 5W8260B 05/20/09 1658 wen
Sum Dibromofluoromethane 120 %REC 70-130 5W8260B 05/20/09 1658 /wen
Surr p-Bromofluorobenzene 120 %REC 80-120 5W8260B 05/20/09 1658/wen
Surr Toluene-d8 102 %REC 80-120 5W8260B 05/20/09 1658/wen
Surr 12-Dichlorobenzene-d4 115 %REC 80-120 5W8260B 05/20/09 1658/wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERG VLABORA TORIES INC 2393 Sail Creek Hiqhway 82601 PC Box 3258 Caspe1c WY82602
Toil Free 888.235.0515 3072350515 Fax [phone] casperenergyIab.com www.energylab.com
LAIIORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/04/09
Project 2nd Quarter Groundwater Collection Date 05/16/09 1117
Lab ID C09050570-006 DateReceived 05/19/09
Client Sample ID MW 15 Matrix Aqueous
MCU
Analyses Result Units Qualifier RL QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 ND mg/L A2320 05/22/09 0128 IJI
Bicarbonate as HCO3 441 mg/L A2320 05/22/09 0128 IJI
Calcium 393 mg/L E200.7 06/09/09 1657 aae
Chloride 38 mg/L A4500-Cl 06/10/09 0930 ja
Fluoride 0.2 mg/L 0.1 A4500-F 05/21/09 1210 Iji
Magnesium 148 mg/L 0.9 E200.7 06/09/09 1657/aae
Nitrogen Ammonia as ND mg/L 0.05 A4500-NH3 06/08/09 1510 /jal
Nitrogen NitrateNitrite as ND mg/L E353.2 05/29/09 1222 /jal
Potassium 9.7 mg/L 0.5 E200.7 06/09/09 1657 aae
Sodium 465 mg/L 0.5 E200.7 06/09/09 1657 aae
Sulfate 2290 mg/L 30 A4500-504 05/28/09 1314 jal
PHYSICAL PROPERTIES
pH 7.13 s.u 0.01 A4500-H 05/20/09 1221 dd
Solids Total Dissolved TDS 180 3850 mg/L 10 A2540 05/20/09 1450 rp
METALS DISSOLVED
Arsenic ND ug/L 5.0 E200.8 05/27/09 0117 ts
Beryllium ND ug/L 0.50 E200.8 05/27/09 0117 ts
Cadmium ND ug/L 0.50 E200.8 05/27/09 0117 ts
Chromium ND ug/L 25 E200.8 05/27/09 0117 ts
Cobalt ND ug/L 10 E200.8 05/27/09 0117 ts
Copper ND ug/L 10 E200.8 05/27/09 0117/ts
Iron ND ug/L 30 E200.7 06/04/09 1810/aae
Lead ND ug/L 1.0 E200.8 05/27/09 0117/ts
Manganese ND ug/L 10 E200.8 05/27/09 0117/ts
Mercury ND ug/L 0.50 E200.8 05/27/090117/ts
Molybdenum ND ug/L 10 E200.8 05/27/09 0117/ts
Nickel ND ug/L 20 E200.8 05/27/09 0117/ts
Selenium 110 ug/L 5.0 E200.8 05/27/09 0117 ts
Silver ND ug/L 10 E200.8 05/27/09 1922 ts
Thallium ND ug/L 0.50 E200.8 05/27/09 0117 ts
Tin ND ug/L 100 E200.8 05/27/090117/ts
Uranium 45.6 ug/L 0.30 E200.8 05/27/09 0117 ts
Vanadium ND ug/L 15 E200.8 05/27/090117/ts
Zinc 20 ug/L 10 E200.8 05/27/090117/ts
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 1.0 pCi/L E900 06/08/09 1359 cgr
Gross Alpha minus Rn Precision 0.4 pCi/L E900.1 06/08/09 1359 cgr
Gross Alpha minus Rn MDC 0.4 pCi/L E900.1 06/08/09 1359 cgr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration RL increased due to sample matrix interference
ENERGYLABORA TORIES INC 2393 Sail Creek Highway 82601 Box 3258 Caspe4c WV82602
Toil Free 888235.0515 3072350515 Fax [phone] casperenergy/ab.com wwwenergylab.comENERGY
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/04/09
Project 2nd Quarter Groundwater Collection Date 05/16/09 1117
Lab ID C09050570-006 DateReceived 05/19/09
Client Sample ID MW 15 Matrix Aqueous
MCLI
Analyses Result Units Qualifier RL QCL Method Analysis Date By
DATA QUALITY
NC Balance -3 53 Calculation 07104109 1038 sdw
Anions 56.0 meqlL Calculation 07104/09 10381 sdw
Cations 52.2 meq/L Calculation 07/04/09 1038 sdw
Solids Total Dissolved Calculated 3560 mg/L Calculation 07/04/09 1038 sdw
TDS Balance 0.80 1.20 1.08 Calculation 07/04/09 1038 sdw
VOLATILE ORGANIC COMPOUNDS
Acetone ND ugIL 20 SW8260B 05/20/09 17361 wen
Benzene ND ug/L 1.0 SW8260B 05/20/09 1736 /wen
Carbon tetrachloride ND ug/L 1.0 SW8260B 05/20/09 1736 wen
Chloroform ND ug/L 1.0 SW8260B 05/20/09 1736 wen
Chioromethane ND ug/L 1.0 SW8260B 05/20/09 1736 wen
Methyl ethyl ketone ND ug/L 20 SW8260B 05/20/09 1736 wen
Methylene chloride ND ug/L 1.0 SW8260B 05/20/09 1736 wen
Naphthalene ND ug/L 1.0 SW8260B 05/20/09 1736 /wen
Toluene ND ug/L 1.0 SW8260B 05/20/09 1736 wen
Xylenes Total ND ug/L 1.0 SW8260B 05/20/09 1736 wen
Surr Dibromofluoromethane 124 %REC 70-1 30 SW8260B 05/20/09 1736 wen
Surr p-Bromofluorobenzene 120 %REC 80-120 SW8260B 05/20/09 1736 wen
Surr Toluene-dB 103 %REC 80-120 SW8260B 05/20/09 1736/wen
Surr 2-Dichlorobenzene-d4 116 %REC 80-120 5W8260B 05/20/09 1736 wen
Report RL Anaiyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERG YLABORA TORIES INC 2393 Sail Creek Hizbway 82601 P0 Box 34SS Caspei WY82602
Toll Free 888.235 0515 307235.0515 Fax [phone] casperenergyIab.com wwwenergylab.comENERGY
LADORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/08/09
Project 2nd Quarter Groundwater Resample Collection Date 05/29/09 0852
Lab ID C09060101 -002 DateReceived 06/02/09
Client Sample ID MW 17 Matrix Aqueous
MCLI
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 ND mg/L A2320 06103/09 2136
IJI
Bicarbonate as HCO3 493 mg/L A2320 06/03/09 2136 Iji
Calcium 348 mg/L E200.7 06/16/09 0211 aae
Chloride 36 mg/L A4500-Cl 06/1 0109 1222 /ja
Fluoride 0.3 mg/L 0.1 A4500-F 06/08/09 1512/IjI
Magnesium 176 mg/L 0.9 E200.7 06/16/09 0211 /aae
Nitrogen Ammonia as 0.05 mg/L 0.05 A4500-NH3 06/19/09 1328 /jal
Nitrogen NitrateNitrite as 0.7 mg/L 0.1 E353.2 06/05/09 1335 /Jal
Potassium 12.2 mg/L 0.5 E200.7 06116109 0211 /aae
Sodium 615 mg/L 0.5 E200.7 06/16/09 0211 /aae
Sulfate 2450 mg/L 30 A4500-S04 06/05/09 1348 /jal
PHYSICAL PROPERTIES
pH 7.20 s.u 0.01 A4500-H 06/02/09 1649 dd
Solids Total Dissolved TDS 180 4020 mg/L 10 A2540 06/03/09 1057 rp
METALS DISSOLVED
Arsenic ND ug/L 5.0 E200.8 06/05/09 1802 ts
Beryllium ND ugIL 0.50 E200.8 06/05/09 1802 ts
Cadmium ND ugIL 0.50 E200.8 06/05/09 1802 ts
Chromium ND ug/L 25 E200.8 06/05/09 1802 ts
Cobalt ND ugIL 10 E200.8 06/05/09 1802 Its
Copper ND ug/L 10 E200.8 06/05/09 1802 /ts
Iron ND ug/L 30 E200.8 06/08/09 2034 smi
Lead ND ug/L 1.0 E200.8 06/05/09 1802 ts
Manganese 172 ug/L 10 E200.8 06/05/09 1802 Its
Mercury ND ugIL 0.50 E200.8 06/08/09 2034 sml
Molybdenum ND ug/L 10 E200.8 06/05/09 1802 Its
Nickel ND ug/L 20 E200.8 06/05/09 1802 ts
Selenium 9.8 ug/L 5.0 E200.8 06/05/09 1802/ts
Silver ND ugIL 10 E200.8 06/05/09 1802 Its
Thallium 0.69 ug/L 0.50 E200.8 06/05/09 1802 /ts
Tin ND ug/L 100 E200.8 06/05/09 1802/ts
Uranium 26.4 ugIL 0.30 E200.8 06/05/09 1802/ts
Vanadium ND ug/L 15 E200.8 06/05/09 1802 ts
Zinc ND ug/L 10 E200.8 06/08/09 2034 sml
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 1.2 pCi/L E900.1 06/15/09 2317 cgr
Gross Alpha minus Rn Precision 0.4 pCi/L E900.1 06/15/09 2317 cgr
Gross Alpha minus Rn MDC 0.3 pCi/L E900.1 06/15/09 2317 cgr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration RL increased due to sample matrix interference
ENERO VLASORA TORIES INC 2393 Sail Creek Hqbway 82601 P0 Box 3258 Casper WY82602
Toll Free 888.235.0515 307.235.0515 Fax [phone] casper energy/at corn www.energylab.com
LAL3ORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/08/09
Project 2nd Quarter Groundwater Resample Collection Date 05/29/09 0852
Lab ID C09060101002 DateReceived 06/02/09
Client Sample ID MW 17 Matrix Aqueous
MCL
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
DATA QUALITY
NC Balance -0.986 Calculation 06/18/09 1335 kbh
Anions 60.1 meq/L Calculation 06/1 8109 1335/kbh
Cations 58.9 meq/L Calculation 06/18/09 1335 kbh
Solids Total Dissolved Calculated 3890 mg/L Calculation 06/18/09 1335 kbh
TDS Balance 0.80 1.20 1.03 Calculation 06/18/09 1335 kbh
VOLATILE ORGANIC COMPOUNDS
Acetone ND ugL 20 SW8260B 06/04/09 2007 jlr
Benzene ND ugL 1.0 SW8260B 06/04/09 2007 ljlr
Carbon tetrachioride ND ugL 1.0 SW8260B 06/04/09 2007 jir
Chloroform ND ug/L 1.0 SW8260B 06/04/09 2007/jIr
Chioromethane ND ug/L 1.0 SW82608 06/04/09 2007 /jlr
Methyl ethyl ketone ND ug/L 20 SW8260B 06/04/09 2007 /jlr
Methylene chloride ND ugL 1.0 SW8260B 06/04/09 2007 jlr
Naphthalene ND ugL 1.0 8W8260B 06/04/09 2007 /Jlr
Toluene ND ugL SW8260B 06/04/09 2007 jlr
Xylenes Total ND ug/L 1.0 SW8260B 06/04/09 2007 jlr
Sum Dibromofluoromethane 107 %REC 70-130 SW8260B 06/04/09 2007 jir
Surr p-Bromofluorobenzene 108 %REC 80-1 20 SW8260B 06/04/09 2007 jlr
Surr Toluene-d8 100 %REC 80-1 20 5W82603 06/04/09 2007 jlr
Surr 2-Dichlorobenzene-d4 99.0 %REC 80-120 SW8260B 06/04/09 2007 jir
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit NO Not detected at the reporting limit
ENERS VLABORI4 TORIES INC.2393 Salt CraekHiqbway 82601 PU Box 3258 Caspei WV82602
Tot/Free 888235.0515 3072350515 Fax [phone] caspen wwwenergylab.comEIERGY
LABOR/i TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14109
Project 2nd Quarter Groundwater Re-Sample Collection Date 05/27/09 1212
Lab ID C09050841 -004 DateReceived 05/29/09
Client Sample ID MW 18 Matrix Aqueous
MCLJ
Analyses Result Units Qualifier RL QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 ND mg/L A2320 06/03/09 0208
Iji
Bicarbonate as HCO3 449 mg/L A2320 06/03/09 0208 IjI
Calcium 543 mg/L E200.7 06/13/09 0117 aae
Chloride 68 mgL A4500-Cl 06/10/09 1103/ja
Fluoride 0.2 mgL 0.1 A4500-F 06/05/09 1325 IjI
Magnesium 129 mg/L 0.9 E200.7 06/13/090117 aae
Nitrogen Ammonia as ND mg/L 0.05 A4500-NH3 06/17/09 1213 /jal
Nitrogen NitrateNitrite as ND mg/I 0.1 E353.2 06/05/09 1159/jal
Potassium 8.7 mg/L 0.5 E200.7 06/13/09 0117 aae
Sodium 188 mg/I 0.5 E200.7 06/13/090117/ aae
Sulfate 1930 mg/L 30 A4500-504 06/23/09 1013 /jal
PHYSICAL PROPERTIES
pH 6.79 s.u 0.01 A4500-H 06/01/09 1105 dd
Solids Total Dissolved TDS 180 3200 mg/I 10 A2540 06/01/09 1352 rp
METALS DISSOLVED
Arsenic ND ug/L 5.0 E200.8 06/05/09 1701 ts
Beryllium ND ug/L 0.50 E200.8 06/05/09 1701 ts
Cadmium ND ug/L 0.50 E200.8 06/05/09 1701 ts
Chromium ND ug/L 25 E200.8 06/05/09 1701 ts
Cobalt ND ug/L 10 E200.8 06/05/09 1701 Its
Copper ND ug/L 10 E200.8 06/05/09 1701 ts
Iron 236 ug/L 30 E200.7 06/16/09 1908 cp
lead ND ug/L 1.0 E200.8 06/05/09 1701 Its
Manganese 72 ug/L 10 E200 06/05/09 1701 ts
Mercury ND ug/L 0.50 E200.8 06/05/09 1701 ts
Molybdenum ND ug/L 10 E200.8 06/05/09 1701 ts
Nickel ND ug/L 20 E200.8 06/05/09 1701 ts
Selenium ND ug/L 5.0 E200.8 06/05/09 1701 ts
Silver ND ug/L 10 E200.8 06/05/09 1701 ts
Thallium 2.50 ug/L 0.50 E200.8 06/05/09 1701 ts
Tin ND ug/L 100 E200.8 06/05/09 1701 /ts
Uranium 41.2 ug/L 0.30 E200.8 06/05/09 1701 /ts
Vanadium ND ug/L 15 E200.8 06/05/09 1701 Its
Zinc 27 ug/L 10 6200.8 06/05/09 1701 Its
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 1.7 pCi/L E900.1 06/11/09 1430 cgr
Gross Alpha minus Rn Precision 0.7 pCi/L E900.1 06/11/09 1430 cgr
Gross Alpha minus Rn MDC 0.9 pCi/L E900.1 06/11/09 1430 cgr
Report RI Analyte reporting limit MCI Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration RI increased due to sample matrix interference
EtERGY ENERG VLABORA TORIES INC p2393 Sail Creek Hibway 82601 RO Box 3258 Casper WY82502
To/I Free 888.235.0515 307235.0515 Fax [phone] casperc/Ienergylab.corn wwwenergy/ab.com
LABORATORY ANALYTICAL REPORT
Client
Project
Lab ID
Client Sample ID
Denison Mines USA Corp
2nd Quarter Groundwater Re-Sample
C09050941 -004
MW 18
Report Date 07/14/09
Collection Date 05/27/09 1212
DateReceived 05129/09
Matrix Aqueous
Report RL Analyte reporting limit
Definitions QCL Quality control limit
MCL Maximum contaminant level
Analyses Result Units Qualifier RL
MCU
QCL Method Analysis Date By
DATA QUALITY
A/C Balance -3.43 Calculation 06/25/09 0737 kbh
Anions 49.4 meqL Calculation 06/25/09 0737 kbh
Cations 46.1 meq/L Calculation 06/25/09 0737 kbh
Solids Total Dissolved Calculated 3100 mg/L Calculation 06/25/09 0737 kbh
TDS Balance 0.80 1.20 1.03 Calculation 06/25/09 0737 kbh
VOLATILE ORGANIC COMPOUNDS
Acetone ND ugL 20 SW8260B 06/04/09 1659 jIr
Benrene ND ug/L 1.0 SW8260B 06/04/09 1659 jIr
Carbon tetrachloride ND ug/L 1.0 SW8260B 06/04/09 1659/jlr
Chloroform ND ug/L 1.0 SW8260B 06/04/09 1659 jir
Chloromethane ND ug/L 1.0 SW8260B 06/04/09 1659 jlr
Methyl ethyl ketone ND ugL 20 SW8260B 06/04/09 1659 jlr
Methylene chloride ND ug/L 1.0 5W8260B 06/04109 1659/jlr
Naphthalene ND ug/L 1.0 SW8260B 06/04/09 1659 /jlr
Toluene ND ug/L 1.0 5W8260B 06/04/09 1659/jlr
Xylenes Total ND ug/L 1.0 5W8260B 06/04/09 1659 /jlr
Surr Dibromofluoromethane 113 %REC 70-130 5W8260B 06/04/09 1659/jlr
Surr p-Bromofluorobenzene 108 %REC 80-120 5W8260B 06/04/09 1659/jlr
Surr Toluene-d8 98.0 %REC 80-120 SW8260B 06/04/09 1659 /jlr
Surr 12-Dichlorobenzene-d4 100 %REC 80-120 SW8260B 06/04/09 1659 jlr
ND Not detected at the reporting limit
ENERGYLA4BORA TORIES INC 2393 Sail Creek Htvhway 82601 P0 Box 3258 Caspe WV82602
Toil Free 885235.0515 307235.0515 Fax [phone] .casper4energy/a/icom wrsenergyIab corn
LABO/A TOP/ES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Groundwater Re-Sample Collection Date 05/27/09 0942
Lab ID C09050941-005 DateReceived 05/29/09
Client Sample ID MW 19 Matrix Aqueous
MCL/
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 ND mg/L A2320 06/03/09 0216 Iji
Bicarbonate as HCO3 270 mg/L A2320 06/03/09 0216 IjI
Calcium 137 mg/L E200.7 06/13/09 0122 aae
Chloride 34 mg/L A4500-Cl 06/10/09 1108 ja
Fluoride 1.0 mg/L 0.1 A4500-F 06/05/09 1327 ljl
Magnesium 47.0 mg/L 0.9 E200.7 06/13/09 0122 /aae
Nitrogen Ammonia as ND mg/L 0.05 A4500-NH3 06/17/09 1215 /jaI
Nitrogen NitrateNitrite as 2.4 mgL 0.1 E353.2 06/05/09 1202 /jal
Potassium 4.0 mg/L 0.5 E200.7 06/13/09 0122 aae
Sodium 110 mg/L 0.5 E200.7 06/13/09 0122/aae
Sulfate 510 mg/L 10 A4500-S04 06/10/09 1423 /jal
PHYSICAL PROPERTIES
pH 7.33 s.u 0.01 A4500-H 06/01/09 1107/dd
Solids Totai Dissolved TDS 180 969 mg/L 10 A2540 06/01/09 1352 rp
METALS DISSOLVED
Arsenic ND ug/L 5.0 E200.8 06/05/09 1708/ts
Beryllium ND ug/L 0.50 E200.8 06/05/09 1708 /ts
Cadmium ND ug/L 0.50 E200.8 06/05/09 1708 ts
Chromium ND ug/L 25 E200.8 06/05/09 1708/ts
Cobalt ND ug/L 10 E200.8 06/05/09 1708 /ts
Copper ND ug/L 10 E200.8 0605/09 1708 ts
Iron ND ug/L 30 E200.7 06/16/09 1912cp
Lead ND ug/L 1.0 E200.8 06/05/09 1708/ts
Manganese ND ug/L 10 E200.8 06/05/09 1708/ts
Mercury ND ug/L 0.50 E200.8 06/05/09 1708 /ts
Molybdenum ND ug/L 10 E200.8 06/05/09 1708 /ts
Nickel ND ug/L 20 E200.8 06/05/09 1708 ts
Selenium 107 ug/L 5.0 E200.8 06/05/09 1708 ts
Silver ND ug/L 10 E200.8 06/05/09 1708 /ts
Thallium ND ug/L 0.50 E200.8 06/05/09 1708/ts
Tin ND ug/L 100 E200.8 06/05/09 1708 ts
Uranium 6.76 ug/L 0.30 E200.8 06/05/09 1708 /ts
Vanadium ND ug/L 15 E200.6 06/05/09 1708 /ts
Zinc ND ug/L 10 E200.8 06/05/09 1708 /ts
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 2.1 pCi/L E900.1 06/18/09 1435 cgr
Gross Alpha minus Rn Precision 0.6 pCi/L E900 06/18/09 1435 cgr
Gross Alpha minus Rn MDC 0.4 pCi/L E900.1 06/18/09 1435 cgr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration RL increased due to sample matrix interference
ENERO VLASORA TORIES INC 2393 Sail Creek Hiqbway 8260 PC Box 3258 Casper WY82602
Tall Free 8882350515 307235 0515 Fax [phone] caspenilenergyla cam wwwenergylab.comENERGY
LAIIORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Groundwater Re-Sample Collection Date 05/27/09 0942
Lab ID C09050941-005 DateReceived 05/29/09
Client Sample ID MW 19 Matrix Aqueous
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
DATA QUALITY
NC Balance -1.99 Calculation 06/18/09 0949 kbh
Anions 16.2 meq/L Calculation 06/18/09 0949 kbh
Cations 15.6 meq/L Calculation 06/18/09 0949 kbh
Solids Total Dissolved Calculated 1000 mg/L Calculation 06/18/09 0949 kbh
TDS Balance 0.80-1.20 0.970 Calculation 06/18/09 0949/kbh
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 5W8260B 06/04/09 1736 /jlr
Benzene ND ug/L 1.0 SW8260B 06/04/09 1736 /jlr
Carbon tetrachloride ND ug/L 1.0 5W8260B 06/04/09 1736 /jlr
Chloroform ND ug/L 1.0 8W8260B 06/04/09 1736 /jlr
Chloromethane ND ug/L 1.0 5W8260B 06/04/09 1736 jIr
Methyl ethyl ketone ND ug/L 20 5W8260B 06/04/09 1736 /jlr
Methylene chloride ND ug/L 1.0 5W8260B 06/04/09 1736 /jlr
Naphthalene ND ugL 1.0 5W8260B 06/04/09 1736 /jlr
Toluene ND ug/L 1.0 5W8260B 06/04/09 1736/jIr
Xylenes Total ND ug/L 1.0 5W8260B 06/04/09 1736 /jlr
Surr Dibromofluoromethane 110 %REC 70-130 5W8260B 06/04/09 1736 jlr
Surr p-Bromofluorobenzene 108 %REC 80-120 SW8260B 06/04/09 1736 /jlr
Surr Toluene-d8 97.0 %REC 80-120 SW8260B 06/04/09 1736/jlr
Surr 12-Dichlorobenzene-d4 101 %REC 80-120 5W8260B 06/04/09 1736 /jlr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERGYLASORA TORIES INC -2393 Sail Creek Hiqhway 82601 -P0 Sax 3258-Caspei WY82602
Tail Free 888.235.0515 307235.0515 Far 307234.1639 caspeitEenergy/ab.cam wwwenergy/ab.camEtsERGY
LAI3ORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Semi-Annual Groundwater Collection Date 05/14/09 0917
Lab ID 009050510-001 DateReceived 05/15/09
Client Sample ID MW 20 Matrix Aqueous
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 ND mg/L A2320 05/21/09 1711 IJI
Bicarbonate as HCO3 280 mg/L A2320 05/21/09 1711 IjI
Calcium 339 mg/L E200.7 06/04/09 1506 aae
Chloride 60 mg/L A4500-Cl 05/28/09 0833 jal
Fluoride 0.3 mg/L 0.1 A4500-F 05/18/09 2128 IjI
Magnesium 96 mg/L E200.7 06/04/09 1506 /aae
Nitrogen Ammonia as 0.36 mg/L 0.05 A4500-NH3 05/20/09 1255 /jal
Nitrogen NitrateNitrite as 5.4 mg/L 0.2 E353.2 05/22/09 1349 /jal
Potassium 45.6 mg/L 0.5 E200.7 06/04/09 1506 aae
Sodium 1260 mg/L E200.7 06/04/09 1506 aae
Sulfate 3910 mg/L 60 A4500-S04 05/19/09 1525/jal
PHYSICAL PROPERTIES
p11 7.72 s.u 0.01 A4500-H 05/18/09 1323/dd
Solids Total Dissolved TDS 1800 5820 mg/L 10 A2540 05/19/09 0856 rp
METALS DISSOLVED
Arsenic ND ug/L 5.0 E200.8 05/18/09 1231 /ts
Beryllium ND ug/L 0.50 E200.8 05/18/09 1231 /ts
Cadmium ND ug/L 0.50 E200.8 05/18/09 1231 /ts
Chromium ND ug/L 25 E200.8 05/18/09 1231 /ts
Cobalt ND ug/L 10 E200.8 05/18/09 1231 /ts
Copper ND ug/L 10 E200.8 05/18/09 1231 /ts
Iron ND ug/L 30 E200.8 07/07/09 1220 smi
Lead ND ug/L 1.0 E200.8 05/18/09 1231 /ts
Manganese 42 ug/L 10 E200.8 05/18/09 1231 /ts
Mercury ND ug/L 0.50 E200.8 05/18/09 1231 /ts
Molybdenum ND ug/L 10 E200.8 05/18/09 1231 /ts
Nickel ND ug/L 20 E200.8 05/18/09 1231 /ts
Selenium ND ug/L 5.0 E200.8 05/18/09 1231 /ts
Silver ND ug/L 10 E200.8 05/27/09 1559/ts
Thallium ND ug/L 0.50 6200.8 05/18/09 1231 /ts
Tin ND ug/L 100 E200.8 05/18/09 1231 /ts
Uranium 15.4 ugL 0.30 E200.8 05/18/09 1231 /ts
Vanadium ND ug/L 15 E200.8 05/18/09 1231 /ts
Zinc 32 ug/L 10 E200.6 05/18/09 1231 /ts
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 0.6 pCi/L E900.1 06/02/09 0733 cgr
Gross Alpha minus Rn Precision 0.4 pCi/L E900 06/02/09 0733 cgr
Gross Alpha minus Rn MDC 0.5 pCi/L E900 06/02/09 0733 cgr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration RL increased due to sample matrix interference
ENERGYLASORA TORIES INC 2393 Sail Creek Hiqhway 82601 P0 Box 8258 Casper WY82602
ToilFree88235.0515 307235.0515 Fax [phone] casperenery/ab.vom wwwenergy/ab.comEIERGY
LASORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Semi-Annual Groundwater Collection Date 05/14/09 0917
Lab ID C09050510-001 DateReceived 05/15/09
Client Sample ID MW 20 Matrix Aqueous
MCL
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
DATA QUALITY
A/C Balance -4.21 Calculation 06/08/09 1007/kbh
Anions 88.1 meq/L Calculation 06/08/09 1007 kbh
Cations 81.0 meq/L Calculation 06/08/09 1007 kbh
Solids Total Dissolved Calculated 5880 mgIL Calculation 0608/09 1007 kbh
TDS Balance 0.80-1.20 0.990 Calculation 06/08/09 1007 kbh
VOLATILE ORGANIC COMPOUNDS
Acetone ND ugL 20 5W8260B 05/18/09 2231 Jjlr
Benzene ND ugL 1.0 5W8260B 05/18/09 2231 /jlr
Carbon tetrachioride ND ugL 1.0 5W8260B 05/18/09 2231 /jlr
Chloroform ND ugL 1.0 SW8260B 05/18/09 2231 /jlr
Chioromethane ND ugL 1.0 SW8260B 05/18/09 2231 /jlr
Methyl ethyl ketone ND ugL 20 5W8260B 0518/09 2231 jlr
Methylene chloride ND ug/L 1.0 SW8260B 05/18/09 2231 jlr
Naphthalene ND ug/L 1.0 SW8260B 05/18/09 2231 jlr
Toluene ND ug/L 1.0 5W8260B 05/18/09 2231 /jlr
Xylenes Total ND ug/L 1.0 5W8260B 0518/09 2231 /jlr
Surr Dibromofluoromethane 103 %REC 70-130 SW8260B 05/18/09 2231 /jlr
Surr p-Bromofluorobenzene 99.0 %REC 80-120 SW8260B 05/18/09 2231 /jlr
Sum Toluene-d8 96.0 %REC 80-1 20 SW8260B 05/18/09 2231 /jlr
Surr 12-Dichlorobenzene-d4 104 %REC 80-120 SW8260B 05/18/09 2231 /jlr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERO VLABORA TORIES INC 2393 Sail Creek Hihway 82601 P0 Box 3258k Casp6z WY82602
Toll Free 888.235.0515 307235.0515 Fax [phone] caspenllenergy/ab.com wwwenergy/at.comEIERGY
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Semi-Annual Groundwater Collection Date 05/14/09 0832
Lab ID C0905051 0-002 Date Received 05/15/09
Client Sample ID MW 22 Matrix Aqueous
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 ND mg/L A2320 05/21/09 1718 ljl
Bicarbonate as HCO3 480 mg/L A2320 05/21/09 1718 ljl
Calcium 432 mg/L E200.7 06/09/09 1457 aae
Chloride 58 mg/L A4500-Cl 06/09/09 1120/jal
Fluoride 2.9 mg/L 0.1 A4500-F 05/18/09 2131 ljl
Magnesium 994 mg/L E200.7 06/09109 1457 aae
Nitrogen Ammonia as 0.54 mgIL 0.05 A4500-NH3 05120/09 1256 /jal
Nitrogen NitrateNitrite as 3.4 mg/L 0.2 E353.2 05/22109 1351 Ijal
Potassium 23.5 mg/L 0.5 E200.7 06/09/09 1457 aae
Sodium 258 mg/L E200.7 06/09/09 1457 aae
Sulrate 5380 mgIL 60 A4500-S04 06/09/09 1231 /jal
PHYSICAL PROPERTIES
pH 6.33 s.u 0.01 A4500-H 05/18/09 1326 dd
Solids Total Dissolved TDS 180 7800 mg/L 10 A2540 05/19/09 0856 rp
METALS DISSOLVED
Arsenic ND ugIL 5.0 E200.8 05/18109 1238 /ts
Beryllium 2.45 ugIL 0.50 E200.8 05/18/09 1238 /ts
Cadmium 91.6 ugIL 0.50 E200.8 05/18/09 1238/ts
Chromium ND ugIL 25 E200.8 05/18/09 1238 /ts
Cobalt 291 ugIL 10 E200.8 05/18/09 1238 Its
Copper 15 ugIL 10 E200.8 05/18/09 1238 /ts
Iron 40 ugIL 30 E200.8 07/07/09 1227 smi
Lead ND ug/L 1.0 E200.8 05/18/09 1238/ts
Manganese 29700 ugIL 30 E200.7 06104/09 1512 /aae
Mercury ND ugIL 0.50 E200.8 05/18/09 1238 Its
Molybdenum 620 ugIL 10 E200.8 05/18/09 1238 ts
Nickel 131 ugIL 20 E200.8 05/18109 1238/ts
Selenium 15.3 ug/L 5.0 E200.8 05/18/09 1238 Its
Silver ND ugIL 10 E200.8 05/27/09 1606 Its
Thallium 1.16 ugIL 0.50 E200.8 05/18/09 1238/ts
Tin ND ug/L 100 E200.8 05/18/09 1238/ts
Uranium 47.0 ug/L 0.30 E200.8 05/18/09 1238 Its
Vanadium ND uglL 15 E200.8 05/18109 1238/ts
Zinc 525 ug/L 10 E200.8 05/18/09 1238/ts
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 3.5 pCi/L E900.1 06/02/09 0733/cgr
Gross Alpha minus Rn Precision 0.7 pCi/L E900.1 06/02/09 0733 cgr
Gross Alpha minus Rn MDC 0.5 pCiIL E900.1 06/02/09 0733/cgr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration RL increased due to sample matrix interrerence
ENERGYLABORA TORIES INC 2393 Sail Creek Hir/iway 8260 Box 3258 Caspec WY82602
____________To//Free 888235 0515 307235.0515 Fax [phone] caspeitenergy/ab.com wM4tenergy/ab.com
LAI5ORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Semi-Annual Groundwater Collection Date 05/14/09 0832
Lab ID C0905051 0-002 DateReceived 05/15/09
Client Sample ID MW 22 Matrix Aqueous
MCLI
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
DATA QUALITY
NC Balance -2.85 Calculation 06/11/09 0845/kbh
Anions 122 meq/L Calculation 06/11/09 0845 kbh
Cations 115 meq/L Calculation 06/11/09 0845 kbh
Solids Total Dissolved Calculated 7400 mg/L Calculation 06/11/09 0845 kbh
TDS Balance 0.80 1.20 1.05 Calculation 06/11/09 0845 kbh
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 SW8260B 05118/09 2309 jlr
Benzene ND ug/L 1.0 SW8260B 05118/09 2309 jlr
Carbon tetrachloride ND ug/L 1.0 SW8260B 05/18/09 2309 /jlr
Chloroform ND ug/L 1.0 SW8260B 05/18/09 2309 /jlr
Chloromethane ND ug/L 1.0 SW8260B 05/18/09 2309 fjlr
Methyl ethyl ketone ND ug/L 20 SW8260B 05/18/09 2309/jlr
Methylene chloride ND ug/L 1.0 SW8260B 05/18/09 2309 jlr
Naphthalene ND ug/L 1.0 SW8260B 05/18/09 2309 /jlr
Toluene ND ug/L 1.0 SW8260B 05/18/09 2309 /jlr
Xylenes Total ND ug/L 1.0 SW8260B 05/18/09 2309 jlr
Surr Dibromofluoromethane 99.0 %REC 70-1 30 SW8260B 05/18/09 2309 /jlr
Surr p-Bromofiuorobenzene 96.0 %REC 80-120 5W8260B 05/18/09 2309/jlr
Surr Toluene-d8 96.0 %REC 80-120 SW8260B 05/18/09 2309/jIr
Surr 12-Dichlorobenzene-d4 106 %REC 80-120 SW8260B 05/18/09 2309 /jlr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERG VLASORA TORIES INC 2393 Sail CreekHibway 82601 .RC Box 3258 Gaspe4c WY82602
To//Fre5888.235.0515 3072350515 Fax [phone] caspeitenergy/abcom wivwenergy/ab.cornEIERCY
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Groundwater Re-Sample Collection Date 05127/09 1539
Lab ID C09050941 -006 DateReceived 05/29/09
Client Sample ID MW 23 Matrix Aqueous
MCL/
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 ND mg/L A2320 06/03/09 0223 ljl
Bicarbonate as HCO3 321 mg/L A2320 06/03/09 0223 ljl
Calcium 437 mg/L E200.7 06/13/09 0127 aae
Chloride mg/L A4500-Cl 06/10/09 1114 ja
Fluoride 0.2 mg/L 0.1 A4500-F 06/05/09 1330 ljl
Magnesium 148 mg/L 0.9 E200.7 06/13/09 0127 aae
Nitrogen Ammonia as ND mg/L 0.05 A4500-NH3 06/17/09 1217 /jal
Nitrogen NitratetNitrite as 0.3 mg/L 0.1 E353.2 06/05/09 1204 /jal
Potassium 9.4 mg/L 0.5 E200.7 06/13/09 0127 aae
Sodium 402 mg/L 0.5 E200.7 06/13/09 0127/aae
Sulfate 2400 mg/L 30 A4500-504 06/10/09 1424 /jal
PHYSICAL PROPERTIES
pH 6.97 s.u 0.01 A4500-H 06/01/09 1112/dd
Solids Total Dissolved TDS 180 3590 mg/L 10 A2540 06/01/09 1353 rp
METALS DISSOLVED
Arsenic ND ug/L 5.0 E200.8 06/05/09 1715/ts
Beryllium ND ug/L 0.50 E200.8 06/05/09 1715/ts
Cadmium ND ug/L 0.50 E200.8 06/05/09 1715 /ts
Chromium ND ug/L 25 E200.8 06/05/09 1715 /ts
Cobalt ND ug/L 10 E200.8 06/05/09 1715 ts
Copper ND ug/L 10 E200.8 06/05/09 1715 /ts
Iron ND ug/L 30 E200.7 06/16/09 1917 cp
Lead ND ug/L 1.0 E200.8 06/05/09 1715 /ts
Manganese 44 ug/L 10 E200.8 06/05/09 1715 /ts
Mercury ND ug/L 0.50 E200.8 06/05/09 1715/ts
Molybdenum ND ug/L 10 E200.8 06/05/09 1715/ts
Nickel ND ug/L 20 E200.8 06/05/09 1715 /ts
Selenium ND ug/L 5.0 E200.8 06/05/09 1715 /ts
Silver ND ug/L 10 E200.8 06/05/09 1715 /ts
Thallium ND ug/L 0.50 E200.8 06/05/09 1715 ts
Tin ND ug/L 100 E200.8 06/05/09 1715/ts
Uranium 11.8 ug/L 0.30 E200.8 06/05/09 1715 /ts
Vanadium ND ug/L 15 E200.8 06/05/09 1715 /ts
Zinc 29 ug/L 10 E200.8 06/05/09 1715/ts
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 2.0 pCi/L E900.1 06/11/09 1430 cgr
Gross Alpha minus Rn Precision 0.8 pCi/L E900.1 06/11/09 1430 cgr
Gross Alpha minus Rn MDC 0.9 pCi/L E900.1 06/11/09 1430/cgr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration RL increased due to sample matrix interference
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater Re-Sample
Lab ID C09050941-006
Client Sample ID MW 23
Report Date 07114/09
Collection Date 05/27/09 1539
DateReceived 05/29/09
Matrix Aqueous
MCL
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
Report RL Analyte reporting limit
DefinItions QCL Quality control limit
MCL Maximum contaminant level
ND Not detected at the reporting limit
EIERGY
LASORA TORIES
ENERGYLADORA TORIES INC 2393 Sail Creek Hibway 82601 P0 Box 3258 Caspei WY82602
Toll Free 888.2350515 3072350515 Fax [phone] casper4energy/ab.com wvwenergy/ab.com
LABORATORY ANALYTICAL REPORT
DATA QUALITY
NC Balance -3.41 Calculation 06/18/09 0950 kbh
Anions 55.4 meq/L Calculation 06/18/09 0950 kbh
Cations 51.8 meqL Calculation 06/18/09 0950/kbh
Solids Total Dissolved Calculated 3580 mgL Calculation 06/18/09 0950 kbh
TDS Balance 0.80 1.20 1.00 Calculation 06/18/09 0950 kbh
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 5W8260B 06/04/09 1814 /jlr
Benzene ND ug/L 1.0 5W8260B 06/04/09 1814 /jlr
Carbon tetrachloride ND ugL 1.0 5W8260B 06/04/09 1814 /jlr
Chloroform ND ug/L 1.0 SWB26OB 06/04/09 1814 /jlr
Chloromethane ND ug/L 1.0 5W8260B 06/04/09 1814/jIr
Methyl ethyl ketone ND ug/L 20 SW8260B 06/04/09 1814 /jlr
Methylene chloride ND ug/L 1.0 5W8260B 06/04/09 1814 jlr
Naphthalene ND ug/L 1.0 5W8260B 06/04/09 1814 /jlr
Toluene ND ug/L 1.0 SW8260B 06/04/09 1814 /jlr
Xylenes Total ND ug/L 1.0 SW8260B 06/04/09 1814/jlr
Surr Dibromofluoromethane 111 %REC 70-130 SW8260B 06/04/09 1814/jlr
Surr p-Bromofluorobenzene 105 %REC 80-120 SW8260B 06/04/09 1814 /jlr
Surr Toluene-d8 98.0 %REC 80-120 5W8260B 06/04/09 1814 /jlr
Surr 12-Dichlorobenzene-d4 97.0 %REC 80-120 SW8260B 08/04/09 1814 /jlr
ENERG YLASORA TORIES INC 2393 Sail Creek Hiqhway 82501 20 Box 3258 Caspei WY82602
____________To/I Free 888.235 0515 307235.0515 Fax [phone] caspetenergylab.com www.energyfab.com
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/08/09
Project 2nd Quarter Groundwater Resample Collection Date 05/30/09 1000
Lab ID C09060101-004 DateRoceived 06/02/09
Client Sample ID MW 24 Matrix Aqueous
MCLI
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 NO mg/L A2320 06/03/09 2150 IJI
Bicarbonate as HCO3 233 mg/L A2320 06/03/09 2150 IJI
Calcium 441 mg/L E200.7 06/16/09 0222 aae
Chloride 44 mg/L A4500-Cl 06/10/09 1228 /ja
Fluoride 0.1 mg/L 0.1 A4500-F 06/08/09 1518/IjI
Magnesium 164 mg/L 0.9 E200.7 06/16/09 0222 aae
Nitrogen Ammonia as 0.33 mg/L 0.05 A4500-NH3 06/19/09 1332 /jal
Nitrogen NitrateNitrite as 0.1 mg/L 0.1 E353.2 06/05/09 1342 hal
Potassium 12.2 mg/L 0.5 E200.7 06/16/09 0222 aae
Sodium 489 mg/L 0.5 E200.7 06/16/09 0222 aae
Sulfate 2670 mg/L 30 A4500-S04 06/05/09 1351 /jal
PHYSICAL PROPERTIES
pH 6.59 s.u 0.01 A4500-l-l 06/02/09 1654 dd
Solids Total Dissolved TOS 180 4220 mg/L 10 A2540 06/03/09 1057 rp
METALS DISSOLVED
Arsenic NO ug/L 5.0 E200.8 06/05/09 1816 /ts
Beryllium NO ug/L 0.50 E200.8 06/05/09 1816 Its
Cadmium 0.59 ug/L 0.50 E200.8 06/05/09 1816 /ts
Chromium NO ug/L 25 E200.8 06/05/09 1816 Its
Cobalt NO ug/L 10 E200.8 06/05/09 1816/ts
Copper ND ug/L 10 E200.8 06/05/09 1816 Its
Iron 1110 ug/L 30 E200.7 06/18/09 1641 /cp
Lead NO ug/L 1.0 E200.8 06/05/09 1816/ts
Manganese 3480 ug/L 10 E200.8 06/05/09 1816/ts
Mercury NO ug/L 0.50 E200.8 06/05/09 1816/ts
Molybdenum NO ug/L 10 E200.8 06/05/09 1816/ts
Nickel NO ug/L 20 E200.8 06/05/09 1816 /ts
Selenium NO ug/L 5.0 E200.8 06/05/09 1816 /ts
Silver NO ug/L 10 E200.8 06/05/09 1816/ts
Thallium NO ug/L 0.50 E200.8 06/05/09 1816 /ts
Tin NO ug/L 100 E200.8 06/05/09 1816/ts
Uranium 1.04 ug/L 0.30 E200.8 06/05/09 1816/ts
Vanadium NO ug/L 15 E200.8 06/05/09 1816/ts
Zinc 30 ug/L 10 E200.8 06/05/09 1816/ts
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 1.2 pCi/L E900.1 06/16/09 0100 /cgr
Gross Alpha minus Rn Precision 0.4 pCihL E900.1 06/16/09 0100 cgr
Gross Alpha minus Rn MDC 0.3 pCi/L E900.1 06/16/09 0100 cgr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit NO Not detected at the reporting limit
MDC Minimum detectable concentration RL increased due to sample matrix interference
ENERG VLABORA TORIES INC 2393 Sail CreekHii/iway 82601 P0 Box 3258 Caspei WY82602
Toll Free 888.2350515 3072350515 Fax [phone] caspenWenergylab.com www.energylab.comEtSERGY
L4301A TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/08/09
Project 2nd Quarter Groundwater Resample Collection Date 05/30/09 1000
Lab ID C09060101-004 DateReceived 06/02/09
Client Sample ID MW 24 Matrix Aqueous
MCLJ
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
DATA QUALITY
NC Balance -3.06 Calculation 0618/09 1337 kbh
Anions 60.7 meqL Calculation 06/18/09 1337 kbh
Cations 57.1 meqL Calculation 06/18/09 1337 kbh
Solids Total Dissolved Calculated 3940 mg/L Calculation 06/18/09 1337 kbh
TDS Balance 0.80 1.20 1.07 Calculation 0618/09 1337 kbh
VOLATILE ORGANIC COMPOUNDS
Acetone ND ugL 20 5W82608 06/05/09 0112 jlr
Benzene ND ug/L 1.0 5W8260B 06/05/09 0112 IjIr
Carbon tetrachloride ND ug/L 1.0 5W8260B 06/05/09 0112 /jlr
Chloroform ND ugIL 1.0 5W8260B 06/05/09 0112 jlr
Chloromethane ND ug/L 1.0 5W8260B 08/05/09 0112 jlr
Methyl ethyl ketone ND ug/L 20 8W8260B 06/05/09 0112 /jlr
Methylene chloride ND ug/L 1.0 5W8260B 06/05/09 0112 /jlr
Naphthalene ND ug/L 1.0 5W8260B 06/05/09 0112 /jlr
Toluene ND ugIL 1.0 SW82GOB 06/0509 0112 IjIr
Xylenes Total ND ug/L 1.0 5W8260B 06/05/09 0112 jlr
Surr Dibromofluoromethane 115 %REC 70-130 5W8260B 06/05/09 0112 jlr
Surr p-Bromofluorobenzene 106 %REC 80-1 20 5W8260B 06/05/09 0112 jlr
Surr Toluene-d8 96.0 %REC 80-1 20 5W8260B 06/0509 0112 jlr
Surr 12-Dichlorobenzene-d4 98.0 %REC 80-120 SWS26OB 06/05/09 0112/jlr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERG VLABORA TORIES INC 2393 Sail Creek Hhway 82601 tAO Box 3258 Casper WV82602
Toll Free 888.235.0515 307235.0515 Fax [phone] casperenergy/a corn wscenergyIab.cornEfERGY
LAbORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Semi-Annual Groundwater Collection Date 05/13/09 1732
Lab ID C09050510-003 DateReceived 05/15/09
Client Sample ID MW25 Matrix Aqueous
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 ND mg/L A2320 05/21/09 1725 ljl
Bicarbonate as HCO3 399 mg/L A2320 05/21/09 1725 IJI
Calcium 333 mgL E200.1 06/04/09 1536 aae
Chloride 30 mgL A4500-Cl 05/28/09 0838 /jal
Fluoride 0.4 mgL 0.1 A4500-F 05/18/09 2133 IjI
Magnesium 116 mg/L 0.9 E200.7 06/04/09 1536 aae
Nitrogen Ammonia as 0.50 mg/L 0.05 A4500-NH3 05/20/09 1258 /jal
Nitrogen NitrateNitrite as ND mg/L 0.1 E353.2 05/22/09 1354/jal
Potassium 8.5 mgL 0.5 E200.7 06/04/09 1536 aae
Sodium 279 mg/L 0.5 E200.7 06/04/09 1536 aae
Sulfate 1690 mgL 60 A4500-504 05/19/09 1530 jal
PHYSICAL PROPERTIES
pH 7.18 s.u 0.01 A4500-H 05/18/09 1328dd
Solids Total Dissolved TDS 180 2710 mg/L 10 A2540 05/19/090856 rp
METALS DISSOLVED
Arsenic ND ug/L 5.0 E200.8 05/18/09 1312 /ts
Beryllium ND ug/L 0.50 E200.8 05/18/09 1312 ts
Cadmium 1.24 ugL 0.50 E200.8 05/18/09 1312 /ts
Chromium ND ugL 25 E200.8 05/18/09 1312 /ts
Cobalt ND ug/L 10 E200.8 05/18/09 1312/ts
Copper ND ug/L 10 E200.8 05/18/09 1312/ts
Iron ND ug/L 30 E200.8 07/07/09 1233 sml
Lead ND ugL 1.0 E200.8 05/18/09 1312/ts
Manganese 1590 ug/L 10 E200.8 05/18/09 1312 /ts
Mercury ND ug/L 0.50 E200.8 05/18/09 1312 /ts
Molybdenum 11 ugL 10 E200.8 05/18/09 1312 ts
Nickel ND ug/L 20 E200.8 05/18/09 1312 /ts
Selenium ND ug/L 5.0 E200.8 05/18/09 1312 /ts
Silver ND ug/L 10 E200.8 05/27/09 1613/ts
Thallium 0.90 ug/L 0.50 E200.8 05/18/09 1312 /ts
Tin ND ug/L 100 E200.8 05/18/09 1312/ts
Uranium 5.70 ug/L 0.30 E200.8 05/18/09 1312 /ts
Vanadium ND ug/L 15 E200.8 05/18/09 1312 /ts
Zinc ND ug/L 10 E200.8 05/18/09 1312/ts
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 0.8 pCi/L E900.1 06/02/09 0908 cgr
Gross Alpha minus Rn Precision 0.4 pCi/L E900 06/02/09 0908 cgr
Gross Alpha minus Rn MDC 0.5 pCi/L E900 06/02/09 0908 cgr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration RL increased due to sample matrix interference
ENERGYLABORATORIES INC 2393 Sail creek H/iway 82601 P0 Box 3258 caspec WY82602
Toil Free 888.235.0515 307235.0515 Far 3072341639 caspercenergy/ab.coin www.energylab.comENERGY
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Semi-Annual Groundwater Collection Date 05/13/09 1732
Lab ID C09050510-003 DateReceived 05/15/09
Client Sample ID MW 25 Matrix Aqueous
MCL/
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
DATA QUALITY
NC Balance -4.92 Calculation 06/08/09 1012 kbh
Anions 42.5 meq/L Calculation 06/08/09 1012 kbh
Cations 38.5 meq/L Calculation 06/08/09 1012 kbh
Solids Total Dissolved Calculated 2650 mgL Calculation 06/08/09 1012 kbh
TDS Balance 0.80 1.20 1.02 Calculation 06/08/09 1012 kbh
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 SW8260B 05/18/09 2347 /jlr
Benzene ND ug/L 1.0 SW82608 05/18/09 2347 jlr
Carbon tetrachloride ND ug/L 1.0 5W82608 05/18/09 2347 jlr
Chloroform ND ug/L 1.0 SW8260B 05/18/09 2347 jlr
Chloromethane ND ug/L 1.0 SW8260B 05/18/09 2347 /jlr
Methyl ethyl ketone ND ug/L 20 8W8260B 05/18/09 2347 IjIr
Methylene chloride ND ug/L 1.0 SW8260B 05/18/09 2347/jlr
Naphthalene ND ug/L 1.0 SW8260B 05/18/09 2347 /jlr
Toluene ND ug/L 1.0 SW8260B 05/18/09 2347 jlr
Xylenes Total ND ug/L 1.0 SW8260B 05/18/09 2347/jlr
Surr Dibromofluoromethane 94.0 %REC 70-130 SW8260B 05/18/09 2347/jlr
Surr p-Bromofluorobenzene 104 %REC 80-120 SW82608 05/18/09 2347/jlr
Surr Toluene-d8 95.0 %REC 80-120 5W8260B 05/18/09 2347/jlr
Surr 12-Dichlorobenzene-d4 106 %REC 80-120 5W8260B 05/18/09 2347 /jlr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions DCL Quality control limit ND Not detected at the reporting limit
ENERG YLABORA TORIES INC 2393 Sail Creek Hihway 82601 P0 Box 3258 Caspei WV82502
_____________Toll Free 888.235.0515 307235.0515 Fax [phone] casperci.energylab.corn wvw energy/ab cornENERGY
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/04/09
Project 2nd Quarter Groundwater Collection Date 05/18/09 0905
Lab ID C09050570-007 DateReceived 05/19/09
Client Sample ID MW 26 Matrix Aqueous
MCLI
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 ND mg/L A2320 05/22/09 0135 IJI
Bicarbonate as HCO3 400 mg/L A2320 05/22/09 0135 IJI
Calcium 448 mg/L E200.7 06/04/09 1815 aae
Chloride 58 mg/L A4500-Cl 05/28/09 0933 Ijal
Fluoride 0.3 mg/L 0.1 A4500-F 05/21/09 1212 ljl
Magnesium 152 mg/L 0.9 E200.7 06/04/09 1815 aae
Nitrogen Ammonia as 0.05 mgL 0.05 A4500-NH3 06/08/09 1512 /jal
Nitrogen NitrateNitrite as 0.3 mg/L 0.1 E353.2 05/29/09 1225 /jal
Potassium 10.0 mg/L 0.5 E200.7 06/04/09 1815/aae
Sodium 202 mg/L 0.5 E200.7 06/04/09 1815 aae
Sulfate 1910 mgL 30 A4500-S04 05/28/09 1316/jal
PHYSICAL PROPERTIES
pH 7.18 s.u 0.01 A4500-H 05/20/09 1236/dd
Solids Total Dissolved TDS 180 3340 mg/L 10 A2540 05/20/09 1450 rp
METALS DISSOLVED
Arsenic ND ug/L 5.0 E200.8 05/27/09 0124 ts
Beryllium ND ug/L 0.50 E200.8 OS/2 7/09 0124 ts
Cadmium ND ug/L 0.50 E200.8 05/27/09 0124 ts
Chromium ND ug/L 25 E200.8 05/27/09 0124 ts
Cobalt ND ug/L 10 E200.8 05/27/09 0124/ts
Copper ND ug/L 10 E200.8 05/27/09 0124 /ts
Iron 732 ug/L 70 E200.7 06/04/09 1815 aae
Lead ND ug/L 1.0 E200.8 05/27/09 0124/ts
Manganese 1120 ug/L 10 E200.8 05/27/09 0124/ts
Mercury ND ug/L 0.50 E200.8 05/27/09 0124 ts
Molybdenum ND ug/L 10 E200.8 05/27/090124 ts
Nickel ND ug/L 20 E200.8 05/27/09 0124 ts
Selenium ND ug/L 5.0 E200.8 05/27/09 0124 ts
Silver ND ug/L 10 E200.8 05/27/09 1956 /ts
Thallium ND ug/L 0.50 E200.8 05/27/09 0124 ts
Tin ND ug/L 100 E200.8 05/27/09 0124/ts
Uranium 32.1 ug/L 0.30 E200.8 05/27/09 0124/ts
Vanadium ND ug/L 15 E200.8 05/27/09 0124 /ts
Zinc 11 ug/L 10 E200.8 05/27/09 0124 ts
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 4.6 pCi/L E900.1 06/08/09 1359 cgr
Gross Alpha minus Rn Precision 0.7 pCi/L E900.1 06/08/09 1359/cgr
Gross Alpha minus Rn MDC 0.4 pCi/L E900.1 06/08/09 1359/cgr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration RL increased due to sample matrix interference
ENERGYLABORA TORIES INC 2393 Sail Creek Hiqhway 82601 P0 Box 3258 Caspec WY82602
Toll Free 888.235.0515 307.235.0515 Fax [phone] casperenergy/ab.com www.energylab.comEIERGY
LASORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/04/09
Project 2nd Quarter Groundwater Cellection Date 05/18/09 0905
Lab ID C09050570-007 DateReceived 05/19/09
Client Sample ID MW 26 Matrix Aqueous
MCL/
Analyses Result Units Qualifiers RL QCL Method Analysis Date/By
DATA QUALITY
A/C Balance -4.51 Calculation 06/08/09 1029/ kbh
Anions 48.0 meq/L Calculation 06/08/09 1029 kbh
Cations 43.9 meq/L Calculation 06/08/09 1029 kbh
Solids Total Dissolved Calculated 2980 mg/L Calculation 06/08/09 1029 kbh
TDS Balance 0.80-1.20 1.12 Calculation 06/08/09 1029 kbh
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 SW8260B 05/20/09 2045 wen
Benzene ND ug/L 1.0 5W8260B 05/20/09 2045 wen
Carbon tetrachloride ND ug/L 1.0 5W8260B 05/20/09 2045 wen
Chloroform 2600 ug/L 100 5W8260B 05/20/09 1814 wen
Chloromethane ND ug/L 1.0 SW8260B 05/20/09 2045 wen
Methyl ethyl ketone ND ug/L 20 5W8260B 05/20/09 2045 wen
Methylene chloride 47 ug/L 1.0 5W8260B 05/20/09 2045 wen
Naphthalene ND ug/L 1.0 SW8260B 05/20/09 2045 wen
Toluene ND ug/L 1.0 5W5260B 05/20/09 2045 wen
Xylenes Total ND ug/L 1.0 5W8260B 05/20/09 2045 wen
Surr Dibromofluoromethane 134 %REC 70-130 5W8260B 05/20/09 2045 wen
Surr p-Bromofluorobenzene 122 %REC 80-120 5W8260B 05/20/09 2045 /wen
Surr Toluene-d8 104 %REC 80-120 5W8260B 05/20/09 2045 wen
Surr 2-Dichlorobenzene-d4 115 %REC 80-120 SW8260B 05/20/09 2045 wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
Spike recovery outside of advisory limits
flj ENERGVLABORA TORIES INC 2393 Sail Creak Hihway 82601 20 Box 3258 Casper WY82602
Toll Free 888.235.0515 307235.0515 Fax [phone] casperd4energy/ahcom www.energylab.com
TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/08/09
Project 2nd Quarter Groundwater Resample Collection Date 05/29/09 1302
Lab ID C090601 01-003 DateReceived 06/02/09
Client Sample ID MW 27 Matrix Aqueous
MCLJ
Analyses Result units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 ND mg/L A2320 06/03/092143/IjI
Bicarbonate as HCO3 446 mg/L A2320 06/03/09 2143/IjI
Calcium 155 mg/L E200.7 06/16/09 0216 aae
Chloride 42 mg/L A4500-Cl 06/10/09 1225 ja
Fluoride 0.7 mg/L 0.1 A4500-F 06/08109 1515
ljl
Magnesium 71.2 mg/L 0.9 E200.7 06/16/090216/aae
Nitrogen Ammonia as ND mg/L 0.05 A4500-NH3 06/19/09 1330/jal
Nitrogen NitrateNitrite as ND mg/L 0.2 E353.2 06/05/09 1337 /jal
Potassium 4.0 mg/L 0.5 E200.7 06/16/09 0216 aae
Sodium 74.1 mgIL 0.5 E200.7 06/16/09 0216/aae
Sulfate 414 mg/L 30 A4500-S04 06/05/09 1350 /jal
PHYSICAL PROPERTIES
pH 6.62 s.u 0.01 A4500-H 06/02/09 1652 /dd
Solids Total Dissolved TDS 180 1130 mg/L 10 A2540 06/03/09 1057 rp
METALS DISSOLVED
Arsenic ND ug/L 5.0 E200.8 06/05/09 1809 ts
Beryllium ND ug/L 0.50 E200.8 06/05/09 1809 /ts
Cadmium ND ug/L 0.50 E200.8 06/05/09 1809 /ts
Chromium ND ug/L 25 E200.8 06/05/09 1809 ts
Cobalt ND ug/L 10 E200.8 06/05/09 1809 /ts
Copper ND ug/L 10 E200.8 06/05/09 1809 /ts
Iron ND ug/L 30 E200.7 06/18/09 1637 cp
Lead ND ug/L 1.0 E200.8 06/05/09 1809/ts
Manganese ND ug/L 10 E200.8 06/05/09 1809/ts
Mercury ND ug/L 0.50 E200.8 06/05/09 1809 ts
Molybdenum ND ug/L 10 E200.8 06/05/09 1809 /ts
Nickel ND ug/L 20 E200.8 06/05/09 1809 /ts
Selenium 11.8 ug/L 5.0 E200.8 06/05/09 1809/ts
Silver ND ug/L 10 E200.8 06/05/09 1809 ts
Thallium ND ug/L 0.50 E200.8 06/05/09 1809/ts
Tin ND ug/L 100 E200.8 06/05/09 1809 /ts
Uranium 31.1 ug/L 0.30 E200.8 06/05/09 1809/ts
Vanadium ND ug/L 15 E200.8 08/05/09 1809 /ts
Zinc ND ug/L 10 E200.8 06/05/09 1809/ts
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 1.9 pCi/L E900 06/16/09 0059 cgr
Gross Alpha minus Rn Precision 0.5 pCi/L E900.1 06/16/09 0059 cgr
Gross Alpha minus Rn MDC 0.3 pCi/L E900 06/16/09 0059 cgr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration RL increased due to sample matrix interference
ENERGVLABORA TORIES INC 2393 Sail Creek Hiqhway 82601 P0 Box 3258 Caspe WY82602
Toil Free 885.235 0515 307235.0515 Fax [phone] [e-mail] wwwenergy/aAcomEIERGY
LABORATORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/08/09
Project 2nd Quarter Groundwater Resample Collection Date 05/29/09 1302
Lab ID C09060101-003 DateReceived 06/02/09
Client Sample ID MW 27 Matrix Aqueous
MCI
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
DATA QUALITY
A/C Balance -0.734 Calculation 06/18/09 1336/kbh
Anions 17.2 meq/L Calculation 06/18/09 1336/ kbh
Cations 16.9 meq/L Calculation 06/18/09 1336 kbh
Solids Total Dissolved Calculated 980 mg/L Calculation 06/18/09 1336 kbh
TDS Balance 0.80 1.20 1.15 Calculation 06118/09 1336 kbh
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 5W8260B 06/05/09 0034 IjIr
Benzene ND ug/L 1.0 SW8260B 06/05/09 0034 /jlr
Carbon tetrachloride ND ug/L 1.0 SW8260B 06/05/09 0034 IjIr
Chloroform ND ug/L 1.0 SW8260B 06/05/09 0034 Ijlr
Chloromethane ND ug/L 1.0 SW8260B 06/05/09 0034/jIr
Methyl ethyl ketone ND ug/L 20 SW8260B 06/05/09 0034 /jlr
Methylene chloride ND ug/L 1.0 SW8260B 06/05/09 0034 /jlr
Naphthalene ND ug/L 1.0 5W8260B 06/05/09 0034 jlr
Toluene ND ug/L 1.0 SW8260R 06/05/090034 /jlr
Xylenes Total ND ug/L 1.0 SW8260B 06/05/09 0034 /jlr
Surr Dibromofluoromethane 113 %REC 70-130 SW8260B 06/05/09 0034 /jlr
Surr p-Bromofluorobenzene 106 %REC 80-1 20 SW82608 06/05109 0034 jlr
Surr Toluene-d8 98.0 %REC 80-1 20 5W8260B 06/05/09 0034 /jlr
Surr 12-Dichlorobenzene-d4 99.0 ICREC 80-120 SW8260B 06/05/09 0034 /jlr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERGYLABORA TORIES INC 2393 Sail Creek Hiqbway 82601 P0 Sax 3258 Caspei WV82602
Tall Free 888235 0515 3072350515 Fax [phone] casped4energy/ab.com wwwenergy/ab.com
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Semi-Annual Groundwater Collection Date 05/12/09 1447
Lab ID C09050510-004 DateReceived 05/15/09
Client Sample ID MW 28 Matrix Aqueous
MCLI
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 ND mg/L A2320 05/21/09 1732/ljl
Bicarbonate as HCO3 156 mg/L A2320 05/21/09 1732 ljl
Calcium 483 mgIL E200.7 06104/09 1541 aae
Chloride 81 mg/L A4500-Cl 05/28/09 0839 Ijal
Fluoride 0.6 mg/L 0.1 A4500-F 05/18/09 2136 ljl
Magnesium 162 mg/L 0.9 E200.7 06/04/09 1541 /aae
Nitrogen Ammonia as 0.13 mg/L 0.05 A4500-NH3 05/20/09 1300 /jal
Nitrogen NitrateNitrite as 0.2 mg/L 0.1 E353.2 05/22/09 1357 /jal
Potassium 10.2 mg/L 0.5 E200.7 06/04/09 1541 aae
Sodium 289 mg/L 0.5 E200.7 06/04/09 1541 aae
Sulfate 2410 mg/L 60 A4500-504 05119/09 1536/jal
PHYSICAL PROPERTIES
pH 6.51 s.u 0.01 A4500-H 05/18/09 1329/dd
Solids Total Dissolved TDS 180 3620 mgIL 10 A2540 05/19/09 0856 rp
METALS DISSOLVED
Arsenic 14.0 ug/L 5.0 E200.8 05/18/09 1319 /ts
Beryllium ND ugIL 0.50 E200.8 05/18/09 1319/ts
Cadmium 3.90 ug/L 0.50 E200.8 05/18/09 1319/ts
Chromium ND ugIL 25 E200.8 05/18/09 1319/ts
Cobalt 28 ug/L 10 E200.8 05/18/09 1319/ts
Copper ND ug/L 10 E200.8 05/18/09 1319/ts
Iron 42 ug/L 30 E200.8 07/07/09 1308 sml
Lead ND ug/L 1.0 E200.8 05/18/09 1319/ts
Manganese 1470 ug/L 10 E200.8 05/18/09 1319/ts
Mercury ND ugIL 0.50 E200.8 05/18/09 1319/ts
Molybdenum ND ugIL 10 E200.8 05/18/09 1319 Its
Nickel 26 ug/L 20 E200.8 05/18/09 1319 Its
Selenium 5.6 ugIL 5.0 E200.8 05/18/09 1319 Its
Silver ND ugIL 10 E200.8 05/27/09 1620/ts
Thallium 0.83 ugIL 0.50 E200.8 05/18/09 1319 Its
Tin ND ugIL 100 E200.8 05118109 1319 Its
Uranium 3.34 ugIL 0.30 E200.8 05/18/09 1319 Its
Vanadium ND ugIL 15 E200.8 05118/09 1319 Its
Zinc 46 ugIL 10 E200.6 05118/09 1319 Its
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 0.5 pCi/L E900.1 06/02/09 0908/cgr
Gross Alpha minus Rn Precision 0.4 pCiIL E900.1 06/02/09 09081 cgr
Gross Alpha minus Rn MDC 0.5 pCiIL E900 06/02/09 0908 cgr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration RL increased due to sample matrix interference
Not detected at minimum detectable concentration
flPZ ENERG YLABORA TORIES INC 2393 Sail Creek Hghway 82601 P0 Box 3258 Casper WY82602
Toil Free 888.235.0515 307235.0515 Fax [phone] caspen2energy/ab.com wwwenergy/ab.corn
LASORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Semi-Annual Groundwater Collection Date 05/12/09 1447
Lab ID C090505lO-004 DateReceived 05/15/09
Client Sample ID MW 28 Matrix Aqueous
MCLJ
__________________
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
DATA QUALITY
NC Balance -4.50 Calculation 06/08/09 1012 kbh
Anions 55.0 meq/L Calculation 06/08/09 1012 kbh
Cations 50.2 meq/L Calculation 06/08/09 1012/ kbh
Solids Total Dissolved Calculated 3510 mg/L Calculation 06/08/09 1012 kbh
TDS Balance 0.80-1.20 1.03 Calculation 06/08/09 1012/kbh
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 SW8260B 05/19/09 0025 /jlr
Benzene ND ug/L 1.0 SW8260B 05/19/09 0025 /jlr
Carbon tetrachloride ND ug/L 1.0 SW8260B 05/19/09 0025 /jlr
Chloroform ND ug/L 1.0 SW8260B 05/19/09 0025 /jlr
Chloromethane ND ug/L 1.0 SW8260B 05/19/09 0025/jlr
Methyl ethyl ketone ND ug/L 20 SW8260B 05/19/09 0025 jlr
Methylene chloride ND ug/L 1.0 5W8260B 05/19/09 0025 jlr
Naphthalene ND ug/L 1.0 SW8260B 05/19/09 0025/jlr
Toluene ND ug/L 1.0 SW8260B 05/19/09 0025 /jlr
Xylenes Total ND ug/L 1.0 SW8260B 05/19/09 0025 jlr
Surr Dibromofluoromethane 101 %REC 70-130 SW8260B 05/19/09 0025/jlr
Sum p-Bromofluorobenzene 90.0 %REC 80-120 SW8260B 05/19/09 0025/jlr
Sum Toluene-d8 96.0 %REC 80-120 SW8260B 05/19/09 0025/jlr
Sum 12-Dichlorobenzene-d4 100 %REC 80-120 SW8260B 05/19/09 0025 /jlr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL-Quality control limit ND Not detected at the reporting limit
ENERGVLABORA TORIES INC 2393 Salt Creek Hihway 82601 RO Box 3258 Caspe WY82602
Toll Free 888.235.0515 307235.0515 Fax [phone] casperenergy/ab.corn vww energylab cornEtERGY
LAIJORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07114/09
Project 2nd Quarter Semi-Annual Groundwater Collection Date 05/13/09 0758
Lab ID C09050510-005 DateReceived 05/15/09
Client Sample ID MW29 Matrix Aqueous
MCI
Analyses Result units Qualifiers RI QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 ND mg/L A2320 05/21/09 1739 IJI
Bicarbonate as HCO3 339 mg/L A2320 05/2 1/09 1739 IjI
Calcium 437 mg/L E200.7 06/04/09 1546 aae
Chloride 30 mg/L A4500-Cl 06/09/09 1157 jal
Fluoride 0.8 mg/L 0.1 A4500-F 05/18/09 2139 Iji
Magnesium 201 mg/L 0.9 E200.7 06/04/09 1546 aae
Nitrogen Ammonia as 0.76 mg/I 0.05 A4500-NH3 05/20/09 1308/jal
Nitrogen NitrateNitrite as 0.2 mg/I 0.1 E353.2 05/22/09 1359 /jal
Potassium 15.2 mg/I 0.5 E200.7 06/04/09 1546 aae
Sodium 439 mg/L 0.5 E200.7 06/04/09 1546 aae
Sulfate 2790 mg/I 100 A4500-S04 05/19/09 1538 /jal
PHYSICAL PROPERTIES
pH 7.09 s.u 0.01 A4500-H 05/18/09 1331 /dd
Solids Total Dissolved TDS 180 4260 mg/I 10 A2540 05/19/09 0856 rp
METALS DISSOLVED
Arsenic ND ug/I 5.0 E200.8 05/18/09 1325 ts
Beryllium ND ug/I 0.50 E200.8 05/18/09 1325/ts
Cadmium ND ug/I 0.50 E200.8 05/18/09 1325 /ts
Chromium ND ug/I 25 E200.8 05/18/09 1325 /ts
Cobalt ND ug/I 10 E200.8 05/18/09 1325/ts
Copper ND ug/I 10 E200.8 05/18/09 1325 ts
Iron 1380 ug/L 70 E200.7 06/04/09 1546 aae
lead ND ug/l 1.0 E200.8 05/18/09 1325/ts
Manganese 5330 ug/l 10 E200.8 05/27/09 1626/ts
Mercury ND ug/l 0.50 E200.8 05/18/09 13.25 /ts
Molybdenum ND ug/l 10 E200.8 05/18/09 1325/ts
Nickel ND ug/l 20 E200.8 05/18/09 1325/ts
Selenium ND ug/l 5.0 E200.8 05/18/09 1325/ts
Silver ND ugIl 10 E200.8 05/27/09 1626 /ts
Thallium ND ug/l 0.50 E200.8 05/18/09 1325 /ts
Tin ND ug/l 100 E200.8 05/18/09 1325 /ts
Uranium 10.4 ug/l 0.30 E200.8 05/18/09 1325 /ts
Vanadium ND ug/l 15 E200.8 05/18/09 1325 /ts
Zinc 12 ug/l 10 E200.8 05/18/09 1325/ts
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 0.9 pCi/I E900.l 06/02/09 0908/cgr
Gross Alpha minus Rn Precision 0.5 pCi/I E900 06/02/09 0908 cgr
Gross Alpha minus Rn MDC 0.5 pCi/I E900 06/02/09 0908 cgr
Report RI Analyte reporting limit MCI Maximum contaminant level
Definitions QCI Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration RI increased due to sample matrix interference
EIERGY
LASORA TORIES
-r ENERO YLABORA TORIES INC p2393 Sail Creek Hlqbway 82601 P0 Box 3258 Casper WV82602
Tall Free 888.235 0515 307235.0515 Fax [phone] casperenergy/ab.coin wwwenergy/ab.com
LABORATORY ANALYTICAL REPORT
Client
Project
Lab ID
Client Sample ID
Denison Mines USA Corp
2nd Quarter Semi-Annual Groundwater
C0905051 0-005
MW 29
Report Date 07/14/09
Collection Date 05/13/09 0758
DateReceived 05115/09
Matrix Aqueous
Report RL Analyte reporting limit
Definitions QCL Quality control limit
MCL Maximum contaminant level
Analyses Result Units Qualifiers RL
MCLI
QCL Method Analysis Date By
DATA QUALITY
NC Balance -5.41 Calculation 06/11/09 0847/kbh
Anions 64.5 meqL Calculation 06/11/09 0847 kbh
Cations 57.9 meq/L Calculation 06/11/09 0847 kbh
Solids Total Dissolved Calculated 4080 mg/L Calculation 06/11/09 0847 kbh
TDS Balance 0.80 1.20 1.04 Calculation 06/11/09 0847 kbh
The Anion Cation balance was confirmed by re-analysis
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 5W8260B 05/19/09 0103/jIr
Benzene ND ug/L 1.0 5W8260B 05/19/09 0103 jIr
Carbon tetrachloride ND ug/L 1.0 5W8260B 05/19/09 0103 jlr
Chloroform ND ug/L 1.0 5W8260B 05/19/09 0103 /jlr
Chloromethane ND ug/L 1.0 SW8260B 05/19/09 0103 jlr
Methyl ethyl ketone ND ug/L 20 5W8260B 05/19/09 0103 jlr
Methylene chloride ND ug/L 1.0 5W8260B 05/19/09 0103/jlr
Naphthalene ND ug/L 1.0 5W8260B 05/19/09 0103 /jlr
Toluene ND ugIL 1.0 SW8260B 05/19/09 0103 jlr
Xylenes Total ND ug/L 1.0 5W8260B 05/19/09 0103 jlr
Sum Dibromofluoromethane 102 %REC 70-130 SW8260B 05/19/09 0103jlr
Sum p-Bromofluorobenzene 100 %REC 80-1 20 5W8260B 05/19/090103 /jlr
Surr Toluene-d8 97.0 %REC 80-120 SW82608 05/19/09 0103/jlr
Sun 12-Dichlorobenzene-d4 110 %REC 80-120 5W8260B 05/19/09 0103jlr
ND Not detected at the reporting limit
ENERO YLABORA TORIES INC 2393 Sail Creek Hiqhway 82601 CRC Box 3258 Caspei WY82602
Toil Free 888.235.0515 3072350515 Fax [phone] casperenergy/ab.com wwwenergylab.comENERGY
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Semi-Annual Groundwater Collection Date 05/13/09 1017
Lab ID C09050510-006 DateReceived 05/15/09
Client Sample ID MW 30 Matrix Aqueous
MW
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 ND mg/L A2320 05/21/09 1746 ljl
Bicarbonate as HCO3 186 mg/L A2320 05/2 1/09 1746 Iji
Calcium 245 mg/L E200.7 06/09/09 1524 aae
Chloride 122 mg/L A4500-Cl 06/09/09 1159 /jal
Fluoride 0.4 mg/L 0.1 A4500-F 05/18/09 2142 IjI
Magnesium 65.1 mg/L 0.9 E200.7 06/09/09 1524 aae
Nitrogen Ammonia as 0.14 mg/L 0.05 A4500-NH3 05/20/09 1310 /jal
Nitrogen NitrateNitrite as 15.1 mg/L 0.3 E353.2 05/29/09 1049 /jal
Potassium 6.5 mg/L 0.5 E200.7 06/09/09 1524 aae
Sodium 104 mg/L 0.5 E200.7 06/09/09 1524 aae
Sulfate 808 mg/L 10 A4500-S04 06/09/09 1234 jal
PHYSICAL PROPERTIES
pH 7.27 s.u 0.01 A4500-H 05/18/09 1344/dd
Solids Total Dissolved TDS 180 1560 mg/L 10 A2540 05/19/09 0857 rp
METALS DISSOLVED
Arsenic ND ug/L 5.0 E200.8 05/18/09 1332 /ts
Beryllium ND ug/L 0.50 E200.8 05/18/09 1332 ts
Cadmium ND ug/L 0.50 E200.8 05/18/09 1332 /ts
Chromium ND ug/L 25 E200.8 05/18/09 1332 /ts
Cobalt ND ug/L 10 E200.8 05/18/09 1332 /ts
Copper ND ug/L 10 E200.8 05/18/09 1332/ts
Iron 110 ug/L 70 E200.7 06/04/09 1552 aae
Lead ND ug/L 1.0 E200.8 05/18/09 1332/ts
Manganese 44 ug/L 10 E200.8 05/18/09 1332 /ts
Mercury ND ug/L 0.50 E200.8 05/18/09 1332 /ts
Molybdenum ND ug/L 10 E200.8 05/18/09 1332/ts
Nickel ND ug/L 20 E200.8 05/18/09 1332 /ts
Selenium 32.3 ug/L 5.0 E200.8 05/18/09 1332 /ts
Silver ND ug/L 10 E200.8 05/27/09 1700/ts
Thallium ND ug/L 0.50 E200.8 05/18/09 1332 /ts
Tin ND ug/L 100 E200.8 05/18/09 1332/ts
Uranium 6.52 ug/L 0.30 E200.8 05/18/09 1332 /ts
Vanadium ND ug/L 15 E200.8 05/18/09 1332 /ts
Zinc ND ug/L 10 E200.8 05/18/09 1332/ts
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 0.4 pCi/L E900 06/02/09 0908 cgr
Gross Alpha minus Rn Precision 0.4 pCi/L E900.1 06/02/09 0908 cgr
Gross Alpha minus Rn MDC 0.5 pCi/L E900.1 06/02/09 0908 cgr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration RL increased due to sample matrix interference
Not detected at minimum detectable concentration
ENERG YLABORA TORIES INC 2393 Sail Creek Hfqhway 82601 RO Box 3258 Caspe1c WY82602
roil Free 888235.0515 307235 0515 Fax [phone] casper4energy/ab.com www.energyfab.comEtERCV
LALORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Semi-Annual Groundwater Collection Date 05/13/09 1017
Lab ID C0905051 0-006 DateReceived 05115/09
Client Sample ID MW 30 Matrix Aqueous
MCL/
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
DATA QUALITY
NC Balance -464 Calculation 06/15/09 1203/kbh
Anions 24.4 meq/L Calculation 06/15/09 1203/kbh
Cations 22.2 meq/L Calculation 06/15/09 1203 kbh
Solids Total Dissolved Calculated 1510 mg/L Calculation 06/15/09 1203 kbh
TDS Balance 0.80 1.20 1.03 Calculation 06/15/09 1203 kbh
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 5W8260B 05/19/09 0141 /jlr
Benzene ND ug/L 1.0 SW8260B 05/19/09 0141 /jlr
Carbon tetrachloride ND ug/L 1.0 SW8260B 05/19/09 0141 /jlr
Chloroform ND ug/L 1.0 SW8260B 05/19/09 0141 /jlr
Chloromethane ND ug/L 1.0 5W8260B 05/19/09 0141 /jlr
Methyl ethyl ketone ND ug/L 20 5W8260B 05/19/09 0141 /jlr
Methylene chloride ND ug/L 1.0 5W8260B 05/19/09 0141 /jlr
Naphthalene ND ug/L 1.0 SW8260B 05/19/09 0141 /jlr
Toluene ND ug/L 1.0 SW8260B 05/19/09 0141 /jlr
Xylenes Total ND ug/L 1.0 5W8260B 05/19/09 0141 /jlr
Surr Dibromofluoromethane 93.0 %REC 70-130 5W8260B 05/19/09 0141 /jlr
Surr p-Bromofluorobenzene 95.0 %REC 80-120 5W8260B 05/19/09 0141 /jlr
Surr Toluene-d8 93.0 %REC 80-1 20 SW8260B 05/19/09 0141 /jlr
Surr 12-Dichlorobenzene-d4 104 %REC 80-120 5W8260B 05/19/09 0141 /jlr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERG YLABORA TORIES INC 2393 Sail Creek Hi/iway 82601 P0 Box 3258 Caspei WY8260
Toil Free 888235.0515 307235.0515 Fax [phone] casperenergy/ab.com www.energylab.comENERGY
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Semi-Annual Groundwater Collection Date 05/13/09 1237
Lab ID C09050510-007 DateReceived 05/15/09
Client Sample ID MW 31 Matrix Aqueous
MCL/
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 ND mg/L A2320 05/21/09 1753 IjI
Bicarbonate as HCO3 209 mg/L A2320 05/21/09 1753/ljl
Calcium 146 mg/L E200.7 06/04/09 1557 aae
Chloride 124 mg/L A4500-CI 05/28/09 0842 jal
Fluoride 0.9 mg/L 0.1 A4500-F 05/18/09 2144 ljl
Magnesium 72.7 mg/L 0.9 E200.7 06/04/09 1557 aae
Nitrogen Ammonia as 0.09 mg/L 0.05 A4500-NH3 05/20/09 1312 /jal
Nitrogen NitrateNitrite as 22.4 mg/L 0.3 E353.2 05/29/09 1052 /jal
Potassium 5.1 mg/L 0.5 E200.7 06/04/09 1557 aae
Sodium 84.0 mg/L 0.5 E200.7 06/04/09 1557 aae
Sulfate 493 mg/L 30 A4500-S04 05/19/09 1541 /jal
PHYSICAL PROPERTIES
pH 7.82 s.u 0.01 A4500-H 05/18/09 1346/dd
Solids Total Dissolved TDS 180 1230 mg/L 10 A2540 05/19/09 0857 rp
METALS DISSOLVED
Arsenic ND ug/L 5.0 E200.8 05/18/09 1339/ts
Beryllium ND ug/L 0.50 E200.8 05/18/09 1339 ts
Cadmium ND ug/L 0.50 E200.8 05/18/09 1339 ts
Chromium ND ug/L 25 E200.8 05/18/09 1339 ts
Cobalt ND ug/L 10 E200.8 05/18/09 1339/ts
Copper ND ug/L 10 E200.8 05/18/09 1339 /ts
Iron ND ug/L 30 E200.8 07/07/09 1314/sml
Lead ND ug/L 1.0 E200.8 05/18/09 1339 /ts
Manganese ND ug/L 10 E200.8 05/18/09 1339/ts
Mercury ND ug/L 0.50 E200.8 05/18/09 1339/ts
Molybdenum ND ug/L 10 E200.8 05/18/09 1339 /ts
Nickel ND ug/L 20 E200.8 05/18/09 1339 /ts
Selenium 56.1 ug/L 5.0 E200.8 05/18/09 1339/ts
Silver ND ug/L 10 E200.8 05/27/09 1707/ts
Thallium ND ug/L 0.50 E200.8 05/18/09 1339 /ts
Tin ND ug/L 100 E200.8 05/18/09 1339/ts
Uranium 6.76 ug/L 0.30 E200.8 05/18/09 1339/ta
Vanadium ND ug/L 15 E200.8 05/18/09 1339/ta
Zinc ND ug/L 10 E200.8 05/18/09 1339/ts
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 0.8 pCi/L E900.1 06/02/09 0908 cgr
Gross Alpha minus Rn Precision 0.4 pCiiL E900.1 06/02/09 0908 cgr
Gross Alpha minus Rn MDC 0.5 pCi/L E900.1 06/02/09 0908 cgr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration RL increased due to sample matrix interference
ENERGVLABORA TORIES INC 2393 Sail Creek Hhway 82601 RO Box 3258 Caspai WY82602
____________Toll Free 888235.0515 3072350515 Fax [phone] casperenergyIab.com wwwenergylab.com
i14aoRA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Semi-Annual Groundwater Collection Date 05/13/09 1237
Lab ID C09050510-007 DateReceived 05/15/09
Client Sample ID MW 31 Matrix Aqueous
MCL/
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
DATA QUALITY
NC Balance -4.89 Calculation 06/08/09 1014/kbh
Anions 18.8 meq/L Calculation 06/08/09 1014 kbh
Cations 17.1 meq/L Calculation 06/08/09 1014 kbh
Solids Total Dissolved Calculated 1130 mgIL Calculation 06/08/09 1014 kbh
705 Balance 0.80-1.20 1.09 Calculation 06/08/09 1014 kbh
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 SW8260B 05/19/09 0219 jlr
Benzene ND ug/L 1.0 SW8260B 05/19/09 0219 /jlr
Carbon tetrachloride ND ug/L 1.0 SW8260B 05/19/09 0219/jlr
Chloroform ND ug/L 1.0 SW8260B 05/19109 0219/jlr
Chioromethane ND ug/L 1.0 SW8260B 05/19/09 0219 /jlr
Methyl ethyl ketone ND ug/L 20 SW8260B 05/19/09 0219 /jlr
Methylene chloride ND ug/L 1.0 SW8260B 05/19/09 0219 /jlr
Naphthalene ND ug/L 1.0 SW8260B 05/19/09 0219 /jlr
Toluene ND ug/L 1.0 SW82608 05/19/09 0219 /jlr
Xylenes Total ND ug/L 1.0 SW8260B 05/19/09 0219/jlr
Surr Dibromofluoromethane 95.0 %REC 70-1 30 SW8260B 05/19/09 0219 /jlr
Surr p-Bromofluorobenzene 97.0 %REC 80-120 SW8260B 05/19/09 0219/jlr
Surr Toluene-d8 94.0 %REC 80-120 SW8260B 05/19/09 0219/jlr
Surr 12-Dichlorobenzene-d4 104 %REC 80-120 SW8260B 05/19/09 0219/jlr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
EIERCY
LABORA TORIES
Client
Project
Lab ID
Client Sample ID MW 32
Analyses
MAJOR IONS
Carbonate as C03
Bicarbonate as F-1C03
Calcium
Chloride
Fluoride
Magnesium
Nitrogen Ammonia as
Nitrogen NitrateNitrite as
Potassium
Sodium
Sulfate
PHYSICAL PROPERTIES
pH
Solids Total Dissolved TDS 180
METALS DISSOLVED
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Iron
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Tin
Uranium
Vanadium
Zinc
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn
Gross Alpha minus Rn Precision
Gross Alpha minus Rn MDC
Report RL Analyte reporting limit
Definitions QCL Quality control limit
ENERGYLABORJ4 TORIES It/C 2393 Salt Creek HIbway 82601 PC Box 3258 Caspel WY82602
roll Free 888235.0515S 307235.0515 Fax [phone] casperenergy/ab.com www energy/aS corn
LABORATORY ANALYTICAL REPORT
Denison Mines USA Corp Report Date 07/14/09
2nd Quarter Semi-Annual Groundwater Collection Date 05/13/09 1502
C0905051 0-008 Date Received 05/15/09
Matrix Aqueous
MCL/
Result Units Qualifiers RL QCL Method Analysis Date By
ND mg/L A2320 05/21/09 1808 IjI
420 mg/L A2320 05/21/09 1808 Iji
447 mg/L E200.7 06/09/09 1529/aae
32 mg/L A4500-Cl 06/09/09 1200 /jal
0.2 mg/L 0.1 A4500-FC 05118/092155/ljl
206 mgIL 0.9 E200.7 06/09/09 1529/ aae
0.72 mg/L 0.05 A4500-NH3 05/20/09 1314 /jal
ND mg/L 0.1 E353.2 05/29/09 1054/jal
12.5 mg/L 0.5 E200.7 06/09/09 1529/aae
215 mg/L 0.5 E200.7 06/09/09 1529/ aae
2440 mg/L 30 A4500-S04 06/09/09 1235 Ijal
6.95 s.u 0.01 A4500-H 05/18/09 1348/dd
3840 mg/L 10 A2540 05/19/09 0857 rp
ND ug/L 5.0 E200.8 05/18/09 1346 /ts
ND ug/L 0.50 E200.8 05/18/09 1346/ts
2.98 ug/L 0.50 E200.8 05/18/09 1346 /ts
ND ug/L 25 E200.8 05/18/09 1346 /ts
46 ug/L 10 E200.8 05/18/09 1346/ts
ND ug/L 10 E200.8 05/18/09 1346/ts
7600 ug/L 70 E200.7 06/04/09 1602 aae
ND ug/L 1.0 E200.8 05/18/09 1346 /ts
4640 ug/L 20 E200.7 06/04/09 1602 aae
ND ug/L 0.50 E200 05/18/09 1346 /ts
10 ug/L 10 E200.8 05/18/09 1346 /ts
57 ug/L 20 E200.8 05/18/09 1346 ts
ND ug/L 5.0 E200.8 05/18/09 1346/ts
ND ug/L 10 E200.8 05/27/09 1714/ts
ND ug/L 0.50 E200.8 05/18/09 1346 /ts
ND ug/L 100 E200.8 05/18/09 1346 ts
2.54 ug/L 0.30 E200.8 05/18/09 1346/ts
ND ug/L 15 E200.8 05/18/09 1346/ts
129 ug/L 10 E200.8 05/18/09 1346 /ts
1.6 pCi/L E900 06/02/09 0908 cgr
0.5 pCi/L E900.1 06/02/09 0908 cgr
0.5 pCi/L E900.1 06/02/09 0908 cgr
MCL Maximum contaminant level
ND Not detected at the reporting limit
MDC Minimum detectable concentration RL increased due to sample matrix interference
ENERO YLABORA TORIES INC P2393 Sail Creek Hiqhway 82601 pRO Box 3258 Caspei WY82602
Toil Free 885235 0515 307235.0515 Fax [phone] casper4energy/ab.corn www.energy/ab corn
LAIIORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Semi-Annual Groundwater Collection Date 05/13/09 1502
Lab ID C0905051 0-008 DateReceived 05/15/09
Client Sample ID MW 32 Matrix Aqueous
MCL
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
DATA QUALITY
NC Balance -8.97 Calculation 06/11/09 0903 kbh
Anions 58.7 meqL Calculation 06/11/09 0903 kbh
Cations 49.0 meq/L Calculation 06/11/09 0903 kbh
Solids Total Dissolved Calculated 3560 mgL Calculation 06/11/09 0903 kbh
TDS Balance 0.80 1.20 1.08 Calculation 06/11/09 0903 kbh
The Anion Cation balance was confirmed by re-analysis
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 5W8260B 05/19/09 0258 jlr
Benzene ND ugL 1.0 5W8260B 05/19/09 0258 jlr
Carbon tetrachloride ND ugL 1.0 5W8260B 05/19/09 0258 /jlr
Chloroform ND ug/L 1.0 SW8260B 05/19/09 0258 /jlr
Chloromethane ND ug/L 1.0 5W8260B 05/19/09 0258 jlr
Methyl ethyl ketone ND ug/L 20 5W8260B 05/19/09 0258 jlr
Methylene chloride ND ug/L 1.0 5W8260B 05/19/09 0258 jlr
Naphthalene ND ugL 1.0 5W8260B 05/19/09 0258 /jlr
Toluene ND ug/L 1.0 SW8260B 05/19/09 0258 /jlr
Xylenes Total ND ug/L 1.0 5W8260B 05/19/09 0258 /jlr
Surr Dibromofluoromethane 97.0 %REC 70-1 30 5W8260B 05/19/09 0258 /jlr
Sum p-Bromofluorobenzene 93.0 %REC 80-1 20 5W8260B 05/19/09 0258 /jlr
Surr Toluene-d8 98.0 %REC 80-1 20 5W8260B 05/19/09 0258 /jlr
Surr 12-Dichlorobenzene-d4 104 %REC 80-1 20 SW8260B 05/19/09 0258 /jlr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERGY
LARORA TORIES
Client
Project
Lab ID
Client Sample ID
ENERO YLABORA TORIES INC 2393 Salt Creek HIqfl way 8260 RO Box 3258 Caspec WY82602
Toll Free 885235 0515 307235.0515 Fax [phone] casperenergylab.com wsrvenergylab.com
LABORATORY ANALYTICAL REPORT
Denison Mines USA Corp Report Date 07104/09
2nd Quarter Groundwater Collection Date 05/18/09 0800
C09050570-008 DateReceived 05/19/09
MW 60 Matrix Aqueous
MCL
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 ND mg/L A2320 05/22109 0140 IJI
Bicarbonate as HCO3 mg/L A2320 05122109 0140 IjI
Calcium ND mg/L 0.5 E200.7 06/04/09 1821 aae
Chloride ND mgIL A4500-CI 05/28/09 0937 /jal
Fluoride ND mgL 0.1 A4500-FC 05/21/09 1216/IjI
Magnesium ND mg/L 0.5 E200.7 06/04/09 1821 aae
Nitrogen Ammonia as ND mg/L 0.05 A4500-NH3 06/08/09 1513 /jal
Nitrogen NitrateNitrite as ND mg/L 0.1 E353.2 05/29/09 1237 /jal
Potassium ND mg/L 0.5 E200.7 06/04/09 1821 aae
Sodium 1.2 mg/L 0.5 E200.7 06/04/09 1821 /aae
Sulfate ND mg/L A4500-S04 05/28/09 1321 /jal
PHYSICAL PROPERTIES
pH 7.85 s.u 0.01 A4500-H 05/20/09 1237 dd
Solids Total Dissolved TDS 180 10 mg/L 10 A2540 05/20/09 1450 rp
METALS DISSOLVED
Arsenic ND ug/L 5.0 E200.8 05/27/09 0131 ts
Beryllium ND ug/L 0.50 E200.8 05/27/09 0131 /ts
Cadmium ND ug/L 0.50 E200.8 05/27/09 0131 /ts
Chromium ND ug/L 25 E200.8 05/27/09 0131 /ts
Cobalt ND ug/L 10 E200.8 05/27/09 0131 /ts
Copper ND ug/L 10 E200.8 05/27/09 0131 /ts
Iron ND ug/L 30 E200.7 06/04/09 1821 aae
Lead ND ug/L 1.0 E200.8 05/27/09 0131 /ts
Manganese ND ug/L 10 E200.8 05/27/09 0131 /ts
Mercury ND ug/L 0.50 E200.8 05/27/09 0131 /ts
Molybdenum ND ug/L 10 E200.8 05/27/09 0131 /ts
Nickel ND ug/L 20 E200.8 05/27/09 0131 /ts
Selenium ND ug/L 5.0 E200.8 05/27/09 0131 /ts
Silver ND ug/L 10 E200.8 05/27/09 2003 ts
Thallium ND ug/L 0.50 E200.8 05/27/09 0131 ts
Tin ND ug/L 100 E200.8 05/27/09 0131 /ts
uranium ND ug/L 0.30 E200.8 05/27/09 0131 ts
Vanadium ND ug/L 15 E200.8 05/27/09 0131 /ts
Zinc 15 ug/L 10 E200.8 05/27/09 0131 /ts
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 0.4 pCi/L E900.1 06/08/09 1359 cgr
Gross Alpha minus Rn Precision 0.3 pCi/L E900.1 06/08/09 1359 cgr
Gross Alpha minus Rn MDC 0.4 pCi/L E900.1 06/08/09 1359 cgr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration The analyte was detected in the method blank
Not detected at minimum detectable concentration
ENERG YLABORA TORIES INC 2393 Sal Creek Hiq/iway 82601 EQ Box 3258 Casper WY82602
Toll Free 8882350515 307235.0515 Fax [phone] casperilenergy/ab.com www.energylab.comE/ERGY
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/04/09
Project 2nd Quarter Groundwater Collection Date 05/18/09 0800
Lab ID C09050570-008 DateReceived 05/19/09
Client Sample ID MW 60 Matrix Aqueous
MCL
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
DATA QUAUTY
NC Balance 13.4 Calculation 06/08/09 1034 kbh
Anions 0.0702 meq/L Calculation 06/08/09 1034 kbh
Cations 0.0919 meqlL Calculation 06/08/09 1034/kbh
The ion balance is not appropriate for near blank results
VOLATILE ORGANIC COMPOUNDS
Acetone ND ugL 20 SW8260B 05/20/09 1852 wen
Benzene ND ugL 1.0 SW82608 05/20/09 1852 wen
Carbon tetrachloride ND ug/L 1.0 SW8260B 05/20/09 1852 wen
Chloroform 21 ug/L 1.0 SW8260B 05/20/09 1852 wen
Chloromethane ND ug/L 1.0 SW8260B 05/20/09 1852 wen
Methyl ethyl ketone ND ug/L 20 SW8260B 05/20/09 1852 wen
Methylene chloride ND ug/L 1.0 SW8260B 05/20/09 1852 wen
Naphthalene ND ug/L 1.0 SW8260B 05/20/09 1852 wen
Toluene ND ug/L 1.0 SW8260B 05/20/09 1852 wen
Xylenes Total ND ug/L 1.0 SW8260B 05/20/09 1852 wen
Surr Dibromofluoromethane 126 %REC 70-130 SW8260B 05/20/09 1852/wen
Surr p-Bromofluorobenzene 120 %REC 80-120 SW8260B 05/20/09 1852 /wen
Surr Toluene-d8 102 %REC 80-120 SW8260B 05/20/09 1852 /wen
Surr 2-Dichlorobenzene-d4 114 %REC 80-1 20 SW8260B 05/20/09 1852 wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERS YLABORA TORIES INC 2393 Salt Creek Hhway 82601 P0 Box 3258 Casper WY82602
Toll Free 888.235.0515 3072350515 Fat 307234.1639 caspenWenergylab.com wvrw energyla cornENERGY
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Semi-Annual Groundwater Collection Date 05/13/09 1502
Lab ID C09050510009 DateReceived 05/15/09
Client Sample ID MW 65 Matrix Aqueous
MCLJ
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 ND mgL A2320 05/21/09 1830 IjI
Bicarbonate as HCO3 423 mg/L A2320 05/21/09 1830 IjI
Calcium 459 mg/L E200.7 06/09/09 1535 aae
Chloride 30 mg/L A4500-Cl 06/09/09 1201 /jal
Fluoride 0.2 mg/L 0.1 A4500-F 05/18/09 2158/IjI
Magnesium 210 mg/L 09 E200.7 06/09/09 1535 aae
Nitrogen Ammonia as 0.70 mg/L 0.05 A4500-NN3 05/20/09 1316 jal
Nitrogen NitrateNitrite as ND mg/L 0.1 E353.2 05/29/09 1059 /jal
Potassium 12.9 mg/L 0.5 E200.7 06/09/09 1535 aae
Sodium 220 mg/L 0.5 E200.7 06/09/09 1535 aae
Sulfate 2440 mg/L 30 A4500-S04 06/09/09 1236 /jal
PHYSICAL PROPERTIES
pH 7.06 s.u 0.01 A4500-H 05/18/09 1350 dd
Solids Total Dissolved TDS 180 3850 mg/L 10 A2540 05/19/090857 rp
METALS DISSOLVED
Arsenic ND ug/L 5.0 E200.8 05/18/09 1454 ts
Beryllium ND ug/L 0.50 E200.8 05/18/09 1454/ts
Cadmium 3.02 ug/L 0.50 E200.8 05/18/09 1454/ts
Chromium ND ug/L 25 E200.8 05/18/09 1454/ts
Cobalt 46 ug/L 10 E200.8 05/18/09 1454 /ts
Copper ND ugL 10 E200.8 05/18/09 1454 ts
Iron 7690 ug/L 70 E200.7 06/04/09 1619 aae
Lead ND ugL 1.0 E200.8 05/18/09 1454/ts
Manganese 4710 ug/L 20 E200.7 06/04/09 1619/aae
Mercury ND ug/L 0.50 E200.8 05/18/09 1454/ts
Molybdenum 10 ug/L 10 E200.8 05/18/09 1454/ts
Nickel 57 ug/L 20 E200.8 05/18/09 1454/ts
Selenium ND ug/L 5.0 E200.8 05/18/09 1454 /ts
Silver ND ug/L 10 E200.8 05/27/09 1734/ts
Thallium ND ug/L 0.50 E200.8 05/18/09 1454 ts
Tin ND ug/L 100 E200.8 05/18/09 1454/ts
Uranium 2.57 ug/L 0.30 E200.8 05/18/09 1454 /ts
Vanadium ND ug/L 15 E200.8 05/18/09 1454 ts
Zinc 130 ug/L 10 E200.8 05/18/09 1454/ts
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 2.0 pCi/L E900.1 06/02/09 0908 cgr
Gross Alpha minus Rn Precision 0.6 pCi/L E900.1 06/02/09 0908 cgr
Gross Alpha minus Rn MDC 0.5 pCi/L E900.1 06/02/09 0908 cgr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration RL increased due to sample matrix interference
ENERGYLABORA TORIES INC -2393 Salt Creek Hibway 82501 -P0 Box 3258 Caspac WV82502
Toll Free 889235.0515 307235.0515 Fax [phone] casperSenergylaA corn wwwenergylab.cornENERGY
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14109
Project 2nd Quarter Semi Annual Groundwater Collection Date 05/13/09 1502
Lab ID C09050510-009 DateReceived 05/15/09
Client Sample ID MW 65 Matrix Aqueous
MCL/
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
DATA QUALITY
NC Balance -7.15 Calculation 06/16/090804/lcbh
Anions 57.9 meq/L Calculation 06/16109 0804/kbh
Cations 50.1 meq/L Calculation 06/16/09 0804 kbh
Solids Total Dissolved Calculated 3550 mg/L Calculation 06/16/09 0804/kbh
TDS Balance 0.80 1.20 1.08 Calculation 06/16/09 0804 kbh
The Anion cation balance was confirmed by re-analysis
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 SW8260B 05/19/09 0336 /jlr
Benzene ND ug/L 1.0 5W8260B 05/19/09 0336 jlr
Carbon tetrachloride ND ug/L 1.0 5W8260B 05/19/09 0336 jlr
Chloroform ND ugiL 1.0 SW8260B 05/19/09 0336 /jlr
Chloromethane ND ug/L 1.0 5W8260B 05/19/09 0336 /jlr
Methyl ethyl ketone ND ug/L 20 SW8260B 05/19/09 0336 jlr
Methylene chloride ND ugiL 1.0 SW8260B 05/19/09 0336 /jlr
Naphthalene ND ugiL 1.0 SW8260B 05/19/09 0336 /jlr
Toluene ND ug/L 1.0 5W8260B 05/19/09 0336 /jlr
Xylenes Total ND ugIL 1.0 8W8260B 05/19/09 0336 jlr
Surr Dibromofluoromethane 102 %REC 70-1 30 SW8260B 05/19/09 0336 /jlr
Surr p-Bromofluorobenzene 92.0 %REC 80-1 20 SW8260B 05/19/09 0336 /jlr
Surr Toluene-d8 95.0 %REC 80-1 20 SW8260B 05/19/09 0336 Ijlr
Surr 12-Dichlorobenzene-d4 103 %REC 80-120 SW8260B 05/19/09 0336 Ijlr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERG YLABORA TORIES INC 2393 Sail Creek Hiqhway 82601 P0 Box 3258 Casper WV82602
Toil Free 888.235.0515 307235.0515 Fax [phone] [e-mail] wzra.energylab.comEIERGV
LAI3ORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14109
Project 2nd Quarter Groundwater Re-Sample Collection Date 05/27/09 1212
Lab ID C090509414J07 DateReceived 05/29/09
Client Sample ID MW 70 Matrix Aqueous
MCLI
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Carbonate as C03 ND mg/L A2320 06/03109 0230 Iji
Bicarbonate as HCO3 450 mg/L A2320 06/03/09 0230 ljl
Calcium 560 mglL E200.7 06113/09 0144 aae
Chloride 68 mg/L A4500-Cl 06/10/09 1122/ia
Fluoride 0.2 mgIL 0.1 A4500-F 06/05/09 1340 Iji
Magnesium 132 mg/L 0.9 E200.7 06113/09 0144/aae
Nitrogen Ammonia as ND mg/L 0.05 A4500-NH3 06/17/09 1219 /jal
Nitrogen NitrateNitrite as ND mg/L 0.1 E353.2 06/05/09 1207 /jal
Potassium 10.4 mg/L 0.5 E200.7 06/13109 0144 aae
Sodium 194 mg/L 0.5 E200.7 061131090144/ aae
Sulfate 2020 mg/L 30 A4500-S04 06110/09 1431 /jal
PHYSICAL PROPERTIES
pH 6.77 s.u 0.01 A4500-N 06/01/09 1114/dd
Solids Total Dissolved TDS 180 3230 mg/L 10 A2540 06/01/09 1353/rp
METALS DISSOLVED
Arsenic ND ug/L 5.0 E200.8 06/05/09 1749/ts
Beryllium ND ug/L 0.50 E200.8 06/05/09 1749 /ts
Cadmium ND ug/L 0.50 E200.8 06/05/09 1749/ts
Chromium ND ug/L 25 E200.8 06/05/09 1749 Its
Cobalt ND ugIL 10 E200.8 06105/09 1749 /ts
Copper ND ug/L 10 E200.8 06/05/09 1749 /ts
Iron 236 ug/L 30 E200.7 06/16109 1929 cp
Lead ND ugIL 1.0 E200.8 06/05109 1749 ts
Manganese 75 ugIL 10 E200.8 06/05/09 1749/ts
Mercury ND ug/L 0.50 E200.8 06/05/09 1749/ts
Molybdenum ND ug/L 10 E200.8 06/05/09 1749 /ts
Nickel ND ugiL 20 E200.8 06/05109 1749/ts
Selenium ND ugIL 5.0 E200.8 06/05109 1749/ts
Silver ND ug/L 10 E200.8 06/05/09 1749 Its
Thallium 2.50 ugIL 0.50 E200.8 06105/09 1749 /ts
Tin ND ug/L 100 E200.8 06105/09 1749 /ts
Uranium 46.4 ug/L 0.30 E200.8 06/05/09 1749 /ts
Vanadium ND ug/L 15 E200.8 06/05/09 1749 /ts
Zinc ND ug/L 10 E200.8 06/05/09 1749 Its
RADIONUCLIDES DISSOLVED
Gross Alpha minus Rn 1.6 pCi/L E900.1 06/11/09 1430/cgr
Gross Alpha minus Rn Precision 0.7 pCiIL E900.1 06/11/09 14301 cgr
Gross Alpha minus Rn MDC 0.9 pCiIL E900.1 06/11/09 1430/cgr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
MDC Minimum detectable concentration RL increased due to sample matrix interference
ENSRGY
L/4LORA TORIES
Client
Project
Lab ID
Client Sample ID MW 70
Analyses
DATA QUAUTY
A/C Balance
Anions
Cations
Solids Total Dissolved Calculated
TDS Balance 0.80-1.20
VOLATILE ORGANIC COMPOUNDS
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
Methyl ethyl ketone
Methylene chloride
Naphthalene
Toluene
Xylenes Total
Surr Dibromofluoromethane
Surr p-Bromofluorobenzene
Sum Toluene-d8
Surr 2-Dichlorobenzene-d4
Report
Definitions
ENERGYLASORA TORIES INC 2393 Sail eekHlqhway 82601 AC Box 3258 Caspei WV82602
Toll Free 889235.0515 307235.0515 Fax [phone] casperenergy/ab.com wwwenergy/ab.coin
LABORATORY ANALYTICAL REPORT
Denison Mines USA Corp Report Date 07/14/09
2nd Quarter Groundwater Re-Sample Collection Date 05/27/09 1212
C09050941 -007 DateReceived 05/29/09
Matrix Aqueous
MCU
Result Units Qualifiers RL QCL Method Analysis Date By
-3.83 Calculation 06/18/09 0950 kbh
51.3 meq/L Calculation 06/18/09 0950 kbh
47.5 meq/L Calculation 06/18/09 0950 kbh
3220 mg/L Calculation 06/18/09 0950 kbh
1.00 Calculation 0611 8/09 0950 kbh
ND ug/L 20 5W8260B 06/04/09 1852 /jlr
ND ug/L 1.0 5W8260B 06/04/09 1852 /jlr
ND ug/L 1.0 5W8260B 06/04/09 1852 /jlr
ND ug/L 1.0 SW8260B 06/04/09 1852 /jlr
ND ug/L 1.0 SW8260B 06/04/09 1852 /jlr
ND ug/L 20 5W8260B 06/04/09 1852 /jlr
ND ug/L 1.0 5W8260B 06/04/09 1852 jlr
ND ug/L 1.0 5W8260B 06/04/09 1852 /jlr
ND ug/L 1.0 5W8260B 06/04/09 1852 jIr
ND ug/L 1.0 SW8260B 06/04/09 1852 /jlr
120 %REC 70-130 5W8260B 06/04/09 1852 /jlr
110 %REC 80-120 5W8260B 06/04/09 1852 /jlr
97.0 %REC 80-1 20 SW8260B 06/04/09 1852 /jlr
101 %REC 80-1 20 5W8260B 06/04/09 1852 /jlr
RL Analyte reporting limit MCL Maximum contaminant level
QCL Quality control limit ND Not detected at the reporting limit
ENERGYLABORA TORIES INC 2393 Sail Creek Hiqbway 82501 RU Box 3258 Casper WY82502
Toll Free 588.230515 307235.0515 Fax [phone] casperer7ergy/ab1com wwwenergy/ab.cornEIERGY
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/04/09
Project 2nd Quarter Groundwater Collection Date 05/18/09
Lab ID C09050570-009 DateReceived 05/19/09
Client Sample ID Trip Blank Matrix Aqueous
MCL
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 SW8260B 05/20109 1930/wen
Benzene ND ug/L 1.0 SW8260B 05/20/09 1930 wen
Carbon tetrachloride ND ug/L 1.0 SW8260B 05/20/09 1930/wen
Chloroform ND ug/L 1.0 SW8260B 05/20/09 1930/wen
Chioromethane ND ug/L 1.0 SW8260B 05/20/09 1930 wen
Methyl ethyl ketone ND ug/L 20 8W8260B 05/20/09 1930 /wen
Methylene chloride ND ug/L 1.0 SW8260B 05/20/09 1930 wen
Naphthalene ND ug/L 1.0 SW8260B 05/20/09 1930/wen
Toluene ND ug/L 1.0 5W8260B 05/20/09 1930 /wen
Xylenes Total ND ug/L 1.0 SW8260B 05/20/09 1930/wen
Surr Dibromofluoromethane 125 %REC 70-130 SW8260B 05/20/09 1930 wen
Surr p-Bromofluorobenzene 118 %REC 80-120 SW8260B 05/20/09 1930 wen
Surr Toluene-d8 102 %REC 80-120 SW8260B 05/20/09 1930 /wen
Surr 12-Dichlorobenzene-d4 113 %REC 80-120 SW8260B 05/20/09 1930/wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERGYLABORA TORIES INC1 .2393 Sail Creek Hi/iway 82601 P0 Box 3258 Caspet WY82602
____________Toll Free 888.235.0515 307235.05I5- Fax [phone] casperenergy/ab.com www.energylab.comEIERGY
LASORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Semi-Annual Groundwater Collection Date 05/14/09 0917
Lab ID C09050510-01 DateReceived 05/15/09
Client Sample ID Trip Blank Matrix Aqueous
MCLI
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 SW8260B 05/18/09 1536 IjIr
Benzene ND ugL 1.0 5W8260B 05/18109 1536 IjIr
Carbon tetrachioride ND ugL 1.0 SW8260B 05/18/09 1536/jlr
Chloroform ND ugIL 1.0 SW8260B 05/18/09 1536 jlr
Chloromethane ND ug/L 1.0 SW8260B 05118109 1536 jlr
Methyl ethyl ketone ND ugIL 20 SW8260B 05/18109 1536 jlr
Methylene chloride ND ug/L 1.0 SW8260B 05118/09 1536 IjIr
Naphthalene ND ug/L 1.0 SW8260B 05/18/09 1536/jlr
Toluene ND ug/L 1.0 SW8260B 05/18/09 1536/jlr
Xylenes Total ND ug/L 1.0 SW8260B 05/18/09 1536/jlr
Surr Dibromofluoromethane 103 %REC 70-130 SW8260B 05/18109 1536/jlr
Surr p-Bromofluorobenzene 94.0 %REC 80-120 SW8260B 05/18/09 1536 /jlr
Surr Toluene-d8 96.0 %REC 80-120 SW8260B 05/18/09 1536/jlr
Surr 12-Dichlorobenzene-d4 95.0 %REC 80-120 SW8260B 05/18/09 1536 /jlr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERGYLABORA TORIES INC P2393 Sail Creek Highway 82601 RO Box 3258W Caspei WY82602J7TollFree 888.235.0515 307235.0515 Fax [phone] casperenergy/aA corn www.energylab.com
LARORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Semi-Annual Groundwater Collection Date 05/14/09
Lab ID C09050510-012 DateReceived 05/15/09
Client Sample ID Temp Blank Matrix Aqueous
MCI.
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
PHYSICAL PROPERTIES
Temperature 3.0 E170.1 05/15109 0920/kbh
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERG YLABORA TORIES INC 2393 Sail Creek Hiqbway 82601 P0 Box 3258 Casper kVV82602
Toll Free 888.235.0515 307235.0515 Fax [phone] casperenergylab.com wwwenergylab.comEtERCI
LABOR/i TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Groundwater Re-Sample Collection Date 05/28/09 1539
Lab ID C09050941-008 DateReceived 05/29/09
Client Sample ID Trip Blank Matrix Aqueous
MCL
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20 SW8260B 06/03/09 2013 /jlr
Benzene ND ug/L 1.0 5W8260B 06/03/09 2013 /jlr
Carbon tetrachloride ND ug/L 1.0 SW8260B 06/03/09 2013 /jlr
Chloroform ND ug/L 1.0 SW8260B 06/03/09 2013 /jlr
Chloromethane ND ug/L 1.0 SW8260B 06/03/09 2013/jlr
Methyl ethyl ketone ND ug/L 20 SWB26OB 06/03/09 2013 jir
Methylene chloride ND ug/L 1.0 SW8260B 06/03/09 2013 /jlr
Naphthalene ND ug/L 1.0 SW8260B 06/03/09 2013/jlr
Toluene ND ug/L 1.0 SW8260B 06/03/09 2013/jlr
Xylenes Total ND ug/L 1.0 SW8260B 06/03/09 2013 /jlr
Surr Dibromofluoromethane 108 %REC 70-130 SW8260B 06/03/09 2013 jlr
Surr p-Bromofluorobenzene 106 %REC 80-120 SW8260B 06/03/09 2013 jlr
Surr Toluene-d8 90.0 %REC 80-120 SW8260B 06/03/09 2013 /jlr
Surr 12-Dichlorobenzene-d4 102 %REC 80-120 SW8260B 06/03/09 2013/jlr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERG VLABORA4 TORIES INC 2393 Salt Creek Hihway 82501 RU Box 3258 Casper WV82602
Toll Free 888.235.0515 307235.0515 Fax [phone] casper4energylab.coa7 wwwenergylab.com
LARORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07114109
Project 2nd Quarter Groundwater Re-Sample Collection Date 05/28109 1539
Lab ID C09050941-009 DateReceived 05129/09
Client Sample ID Temp Blank Matrix Aqueous
MCLI
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
PHYSICAL PROPERTIES
Temperature 2.0 E170.1 05/29/090925/kbh
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
Jazy ENERGYLABORA TORIES INC 2393 Salt Creek Hiqbway 82601 PO Box 3258 Caspei WY82602
Toll Free 888.235.0515 307235.0515 Fax [phone]S9 casperenergylab.coin wwwenergy/ab.com
LARORA TORIES
ANALYTICAL SUMMARY REPORT
July 14 2009
Denison Mines USA Corp
64255 Hwy 191
Blanding UT 84511
Workorder No C09050941 Quote ID C1640 POC Wells Monthly Groundwater Sampling
Project Name 2nd Quarter Groundwater Re-Sample
Energy Laboratories Inc received the following samples for Denison Mines USA Corp on 5/29/2009 for analysis
Sample ID Client Sample ID Collect Date Receive Date Matrix Test
C09050941-001 MW 05/27/09 1428 05/29/09 Aqueous Metals by ICP/ICPMS Dissolved
Alkalinity
QA Calculations
Chloride
Fluoride
Nitrogen Ammonia
Nitrogen Nitrate Nitrite
pH
Gross Alpha minus Rn222 and Uranium
Solids Total Dissolved
Sulfate
SW8260B VOCs Standard List
C09050941-002 MW 05/28/09 0816 05/29/09 Aqueous Same As Above
C09050941-003 MW 3A 05/28/09 0729 05/29/09 Aqueous Same As Above
C09050941 -004 MW 18 05/27/09 1212 05/29/09 Aqueous Same As Above
C09050941 -005 MW 19 05/27/09 0942 05/29/09 Aqueous Same As Above
C09050941 -006 MW 23 05/27/09 1539 05/29/09 Aqueous Same As Above
C09050941 -007 MW 70 05/27/09 1212 05/29/09 Aqueous Same As Above
C09050941 -008 Trip Blank 05/28/09 1539 05/29/09 Aqueous SW8260B VOCs Standard List
C09050941-009 Temp Blank 05/28/09 1539 05/29/09 Aqueous Temperature
As appropriate any exceptions or problems with the analyses are noted in the Laboratory Analytical Report the
QA/QC Summary Report or the Case Narrative
If you have any questions regarding these tests results please call
Report Approved By
Stephanie Waldrop
Reporting Supervisor
Analyte
Method A2320
Sample ID MBLK
Alkalinity Total as CaCO3
Carbonate as C03
Bicarbonate as HCO3
Sample ID LCS
Alkalinity Total as CaCO3
Sample ID C09050834-OOIAMS
Alkalinity Total as CaCO3
Sample ID C09050834-OOIAMSD
Alkalinity Total as CaCO3
Method A2540
Sample ID MBLKI_090601
Solids Total Dissolved TDS 180
Sample ID LCSI_090601
Solids Total Dissolved TDS 180
Sample ID C09050940-OO4AMS
Solids Total Dissolved TDS 180
Sample ID C09050940-OO4AMSD
Solids Total Dissolved TDS 180
Sample ID C09050943-OO3AMS
Solids Total Dissolved TDS 180
Sample ID C09050943-OO3AMSD
Solids Total Dissolved TDS 180
Method Blank
ND mg/L
Laboratory Control Sample
1000 mg/L
Sample Matrix Spike
4590 mg/L
Sample Matrix Spike Duplicate
4570 mg/L
Sample Matrix Spike
3820 mg/L
Sample Matrix Spike Duplicate
3790 mg/L
Report Date 07/14/09
Work Order C09050941
RPD RPDLimit Qual
Batch R119005
06/02/09 1625
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
EPERGY
LAIIORA TORIES
ENERGYLASORA TORIES INC 2393 Sail Creek H.fqhway 8260 P0 Box 3258 Casper WY82602
To//Free 888.235.0515 307235.0515 Fax [phone] caspereaergy/ab.com www energy/ab corn
QAIQC Summary Report
Client Denison Mines USA Corp
Projeot 2nd Quarter Groundwater Re-Sample
Count Result Units RL %REC Low Limit High Limit
Method Blank
mgIL
ND mg/L
mg/L
0.2
Run MANTECH_090602B
Laboratory Control Sample
52.8 mg/L 5.0 100
Run MANTECH.090602B
90 110
Sample Matrix Spike
297 mg/L 5.0 100
Run MANTECH_090602B
80 120
Sample Matrix Spike Duplicate
297 mg/L 5.0 100
Run MANTECH_090602B
80 120
06/02/09 1656
06/02/09 1834
06/02/09 1842
20
Batch 090601_1_SLDS-TDS-W
06/01/09 1348
06/01/09 1348
06/01/09 1351
06/01/09 1351
0.4 10
06/01/09 1354
06/01/09 1354
0.8 10
Run BAL-1_090601B
Run BAL-1_090601
10 100 90 110
Run BAL-1_090601
10 103 90 110
Run BAL-1_090601
10 102 90 110
Run BAL-1_090601
10 103 90 110
Run BAL-1_090601
10 101 90 110
ND Not detected at the reporting limit
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater Re-Sample
Method
Sample ID
Chloride
Sample ID
Chloride
Sample ID
Chloride
Sample ID
Chloride
Sample ID
Chloride
Sample ID
Chloride
Method
Sample ID
Fluoride
Sample ID
Fluoride
Sample ID
Fluoride
Sample ID
Fluoride
Method
Sample ID
p1-I
Method
Sample ID
pH
Qualifiers
RL Analyte reporting limit
MDC Minimum delectable concentration
EfERGY
LAIYORA TORIES
ENERGYLABORA TORIES INC 2393 Sail Creek H1q/7way 8260 PC Box 3258 Caspe WY82602
To//Free 886235.0515 SOZ 235 0515 Fax [phone] casperenergy/ab.com www.energylab.com
QA/QC Summary Report
A4500-Cl
MBLK9-090610
C09050570-OO6AMS
C09050570-0O6AMS
C09050941-OO7AMS
C09050941 -0O7AMS
LCS35-090610
Count Result Units
Method Blank
ND mg/I
Sample Matrix Spike
74.4 mg/I
Sample Matrix Spike Duplicate
75.1 mg/L
Sample Matrix Spike
438 mg/I
Sample Matrix Spike Duplicate
420 mg/I
Laboratory Control Sample
3520 mg/I
RL %REC Low limit High Limit
Run TITRATION_090610A
0.4
Run TITRATION_09061 OA
1.0 102 90 110
Run TITRATION_09061 OA
1.0 104 90 110
Run TITRATION_09061 OA
1.0 104 90 110
Run TITRATION 090610A
1.0 99 90 110
Run TITRATION_09061 OA
1.0 99 90 110
Report Date 07/14/09
Work Order C09050941
RPD RPDLimit Qual
Batch 09061 0-CL-TTR-W
06/10/09 0924
06/10/09 1030
06/10/09 1033
10
06/10/09 1127
06/10/09 1129
4.1 10
06/10/09 1131
Batch R119186
Run MANTECH_090605A 06/05/09 1128
Run MANTECH_090605A 06/05/09 1131
90 110
Run MANTECH_090605A 06/05/09 1333
80 120
Run MANTECH_090605A 06/05/09 1336
80 120 10
Anatical Run 0R10N555A_090601A
06/01/09 1041
Batch 090601_1_PH-W_555A-2
Run ORION55SA_090601A 06/01/09 1110
0.1 10
A4500-F
MBLK-1 Method Blank
ND mg/I 0.05
LCS-1 Laboratory Control Sample
0.980 mg/L 0.10 98
C09050941-OO6AMS Sample Matrix Spike
1.24 mg/I 0.10 99
C09050941-OOGAMSD Sample Matrix Spike Duplicate
1.24 mg/I 0.10 99
A4500-H
ICVI_090601_1
A4500-H
C09050941-OO5ADUP
Initial Calibration Verification Standard
6.84 s.u 0.010 100 98 102
Sample Duplicate
7.34 s.u 0.010
ND Not detected at the reporting limit
Analyte
Method A4500-NH3
Sample ID MBLK-1
Nitrogen Ammonia as
Sample ID LCS-2
Nitrogen Ammonia as
Sample ID C09050941-OO2DMS
Nitrogen Ammonia as
Sample ID C09050941-OO2DMSD
Nitrogen Ammonia as
Sample ID C09050941-OO3DMS
Nitrogen Ammonia as
Sample ID C09050941-OO3DMSD
Nitrogen Ammonia as
Method A4500-S04
Sample ID LCS-1_090610
Sulfate
Sample ID MBLK-1_090610
Sulfate
Sample ID C09050927-OO3AMS
Sulfate
Sample ID C09050927-OO3AMSD
Sulfate
Sample ID C09050941-OO6AMS
Sulfate
Sample ID C09050941-OO6AMSD
Sulfate
Method A4500-S04
Sample ID LCS-1_090623
Sulfate
Sample ID MBLK-1_090623
Sulfate
Sample ID C09060479-OOIAMS
Sulfate
Sample ID C09060479-OOIAMSD
Sulfate
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
Laboratory Control Sample
4940 mg/L
Method Blank
ND mg/L
Sample Matrix Spike
214 mg/L
Sample Matrix Spike Duplicate
210 mg/L
Sample Matrix Spike
4420 mg/L
Sample Matrix Spike Duplicate
4400 mg/L
Run TURB-2_090610A
59 103 90 110
Run TURB-2_09061 OA
0.6
Run TURB-2_09061 OA
2.9 109 90 110
Run TURB-2_09061 OA
2.9 105 90 110
Run TURB-2_09061 OA
59 105 90 110
Run TURB-2_090610A
59 104 90 110
LAI3ORA TORIES
ENERG VLABORA TORIES INC 2393 Sail CreekHhway 82601 RC Box 3258 Caspet WY82502
____________Toll Free 888235.0515 307235.0515 Fax [phone] casperenergy/ab.com wwwenergy/ab.coni
QAIQC Summary Report
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater Re-Sample
Count Result Units
Report Date 07/14/09
Work Order C09050941
RL %REC Low Limit High Limit RPD RPDLimit Qual
Batch R119691
06/17/09 1014MethodBlank
ND mg/L 0.02
Run TECHNICON_090617A
Laboratory Control Sample
18.0 mg/L 0.20 90
Run TECHNICON_09061 7A
80 120
Sample Matrix Spike
1.93 mg/L 0.050 96
Run TECHNICON_090617A
80 120
Sample Matrix Spike Duplicate
1.89 mg/L 0.050 95
Run TECHNICON_090617A
80 120
Sample Matrix Spike
2.17 mg/L 0.050 108
Run TECNNICON_090617A
80 120
Sample Matrix Spike Duplicate
2.15 mg/I 0.050 107
Run TECHNICON_090617A
80 120
06/17/09 1017
06/17/09 1131
06/17/09 1133
2.1 20
06/17/09 1207
06/17/09 1209
0.9 20
Batch 090610_i _504-TURB-W
06/10/09 1039
06/10/09 1040
06/10/09 1339
06/10/09 1357
1.5 10
06/10/09 1428
06/10/09 1429
0.5 10
Batch 090623_1_S04-TURB-W
06/23/09 1008
06/23/09 1008
06/23/09 1043
06/23/09 iO44
10
Laboratory Control Sample
5250 mg/L 59 109
Run TURB-2_090623A
90 110
Method Blank
ND mg/L 0.6
Run TURB-2_090623A
Sample Matrix Spike
31.3 mg/L 1.0 101
Run TURB-2_090623A
90 110
Sample Matrix Spike Duplicate
31.9 mg/L 1.0 104
Run TURB-2_090623A
90 110
ND Not detected at the reporting limit
ENERO VLABORA TORIES INC 2393 Salt Creek Hhway 82601 .RC Box 3258 Caspec WV82602
To/I Pree 888.2350515 307235.0515 Par 307234.1639 casper4energylab.com www.energylab.com
LA flORA TORIES
QA/QC Summary Report
Sample ID LRB
Calcium
Magnesium
Potassium
Sodium
Sample ID LFB
Calcium
Magnesium
Potassium
Sodium
Sample ID MB-22453
Calcium
Magnesium
Potassium
Sodium
0.3 mg/L
0.3 mg/L
ND mg/L
ND mg/L
Laboratory Fortified Blank
49.7 mg/L
50.1 mg/L
48.6 mgfL
49.7 mg/L
0.2
0.2
0.03
0.1
Run ICP3-C_090612A
99 85 115
100 85 115
97 85 115
99 85 115
Sample ID C09050941-DO6BMS
Calcium
Magnesium
Potassium
Sodium
Sample Matrix Spike
638 mg/L
365 mgIL
231 mg/L
616 mg/L
Run ICP3-C_090612A
1.0 79 70 130
1.0 85 70 130
1.0 87 70 130
1.0 84 70 130
06/13/09 0133
Sample ID C09050941-OO6BMSD Sample Matrix Spike Duplicate
Calcium 657 mg/L
Magnesium 371 mg/L
Potassium 233 mg/L
Sodium 617 mgIL
Run ICP3-C_090612A
1.0 86 70 130
1.0 87 70 130
1.0 88 70 130
1.0 84 70 130
06/13/09 0138
20
1.7 20
0.9 20
0.2 20
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater Re-Sample
Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimIt Qual
Method E200.7
Method Blank
Report Date 07114/09
Work Order C09050941
Run ICP3-C_09061 2A
Batch R119527
06/12/09 1254
06/12/09 1259
Method Blank
ND
ND
0.09
ND
0.50
0.50
0.50
0.50
0.2
0.2
0.03
0.1
mg/L
mg/L
mg/L
mg/L
Run ICP3-C090612A 06/12/09 1317
ND Not detected at the reporting limit
Analyte
Method E200.7
Sample ID LRB
Calcium
Magnesium
Sample ID LFB
Calcium
Magnesium
Sample ID MB-22693
Calcium
Magnesium
Sample ID C09050941-OO3BMS
Calcium
Magnesium
Sample ID C09050941-OO3BMSD
Calcium
Magnesium
Method E200.7
Sample ID MB-22443
Sodium
Sample ID C09060350-OO5BMS
Sodium
Sample ID C09060350-OO5BMSD
Sodium
Sample ID LRB
Sodium
Sample ID IFB
Sodium
Method E200.7
Sample ID MB-090616A
Iron
Sample ID IFB-090616A
Iron
Sample ID C09050941-OO6BMS2
Iron
Sample ID C09050941-OO6BMSD
Iron
RPD RPDLimit Qual
Batch R119592
06/15/09 1535
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
ENERGY
LA/bRA TORIES
ENERGYLASORA TORIES INC 2393 Sail Creek Hikway 82601 P0 Box 3258 Caspei WY82602
Toll Free 888.235.0515 307235.0515 Far 307234.1639 caspetenergylab.com www.energylab.com
QAIQC Summary Report
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater Re-Sample
Report Date 07/14/09
Work Order C09050941
Count Result Units
Method Blank
ND mg/I
0.2 mg/I
laboratory Fortified Blank
50.1 mg/I
50.8 mg/I
Method Blank
ND mg/I
ND mg/I
Sample Matrix Spike
653 mg/I
535 mg/I
Sample Matrix Spike Duplicate
657 mg/I
534 mg/I
RI %REC Low LImit High limit
Run ICP3-C_090615A
0.2
0.2
Run ICP3-C_090615A
0.50 100 85 115
0.50 101 85 115
Run ICP3-C_09061 SA
0.2
0.2
Run ICP3-C_09061 5A
1.0 85 70 130
1.0 91 70 130
Run ICP3-C_090615A
1.0 86 70 130
1.0 90 70 130
06/15/09 1541
06/15/09 1559
06/16/090105
06/16/09 0110
0.6 20
0.1 20
Method Blank
ND mg/I 0.1
Run ICP3-C_090616B
Sample Matrix Spike
948 mg/I 1.0 74
Run ICP3-C_090616B
70 130
Sample Matrix Spike Duplicate
966 mg/I 1.0 82
Run ICP3-C_090616B
70 130
Method Blank
ND mg/I 0.1
Run ICP3-C_090616B
laboratory Fortified Blank
51.5 mg/I 0.50 103
Run ICP3-C_09061 6B
85 115
Batch R119665
06/16/09 1344
06/16/09 2001
06/16/09 2007
1.9 20
06/16/09 1320
06/16/09 1326
Batch R119716
06/16/09 1233
06/16/09 1237
06/16/09 1921
06/16/09 1925
20
Method Blank
ND mg/I 0.005
Run ICP2-C 09061 6A
Laboratory Fortified Blank
1.01 mg/I 0.030 101
Run ICP2-C_09061 6A
85 115
Sample Matrix Spike
4.81 mg/I 0.030 94
Run ICP2-C_090616A
70 130
Sample Matrix Spike Duplicate
4.97 mg/I 0.030 97
Run ICP2-C_090616A
70 130 3.2
ND Not detected at the reporting limit
EPERGY
LACORA TORIES
ENERGYLABORA TORIES INC 2393 Sail Creek Hihway 82601 P0 Box 3258 Casper WY82602
To//Free 888.235.0515 307.235.0515 Fax [phone] casperenergy/ab.com www.energylab.com
QA/QC Summary Report
Count Result Units
Method Blank
ND
ND
ND
ND
Laboratory Fortified Blank
50.8 mg/L
1.000 mg/I
52.1 mg/L
49.1 mg/I
Sample ID C09050941-OOIBMS2 Sample Matrix Spike
Calcium 263 mg/L
Iron 2.07 mg/I
Magnesium 160 mg/I
Sodium 267 mg/I
0.2
0.005
0.09
0.2
Run ICP2-C_090618A
102 85 115
100 85 115
104 85 115
98 85 115
Run ICP2-C_09061 8A
98 70 130
102 70 130
99 70 130
94 70 130
1.0
0.030
1.0
1.0
Run ICP2-C_090618A
99 70 130
102 70 130
101 70 130
99 70 130
06/18/09 1609
0.5 20
0.1 20
1.1 20
1.8 20
Qualifiers
RI Analyte reporting limit
MDC Minimum detectable concentration
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater Re-Sample
Analyte
Report Date 07/14/09
Work Order C09050941
RI %REC Low Limit High Limit
Method E200.7
Sample ID MB-090618A
Calcium
Iron
Magnesium
Sodium
Sample ID IFB-090618A
Calcium
Iron
Magnesium
Sodium
mg/I
mg/I
mg/I
mg/I
Run ICP2-C_09061 BA
RPD RPDIimit Qual
Batch R119793
06/18/09 1240
06/18/09 1244
06/18/09 1605
0.50
0.030
0.50
0.50
1.0
0.030
1.0
1.0
Sample ID C09050941-OOIBMSD Sample Matrix Spike Duplicate
Calcium 264 mg/I
Iron 2.07 mg/I
Magnesium 162 mg/I
Sodium 272 mg/I
ND Not detected at the reporting limit
ENERG YLABORA TORIES INC P2393 Sail Creek Highway 52501 P0 Box 3258 Casper WV82602
To//Free 858.235 0515 307235.0515 Fax [phone] casperenergy/ab.com wwwenergy/ab.comEIERGY
LABOR/i TORIES
QA/QC Summary Report
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Groundwater Re-Sample Work Order C09050941
Count Result Units RL %REC Low Limit High Limit RPD RPDL1mIt Qual
Method E200.8 Batch R119190
Sample ID LRB Method Blank Run ICPMS2-C_090605A 06/05/09 1313
Arsenic ND mg/L 0.0003
Beryllium ND mg/L GE-OS
Cadmium ND mg/I 6E-05
Chromium ND mg/L BE-OS
Cobalt ND mg/L 0.00010
Copper ND mg/L 4E-05
Lead ND mg/L 2E-05
Manganese ND mg/L SE-OS
Mercury ND mg/L 4E-0S
Molybdenum ND mg/L 4E-OS
Nickel ND mg/L 9E-0S
Selenium ND mg/L 0.001
Silver ND mg/L 2E-05
Thallium ND mg/L 3E-05
Tin ND mg/L 0.0001
Uranium ND mg/I 8E-06
Vanadium ND mg/I 9E-OS
Zinc 0.0006 mg/L 6E-O5
Sample ID LFB Laboratory Fortified Blank Run ICPMS2-C_090605A 06/05/09 1320
Arsenic 0.0526 mg/L 0.0010 105 85 115
Beryllium 0.0509 mg/L 0.0010 102 85 115
Cadmium 0.0522 mg/L 0.0010 104 85 115
Chromium 0.0504 mg/L 0.0010 101 85 115
Cobalt 0.0494 mg/L 0.0010 99 85 115
Copper 0.0499 mg/L 0.0010 100 85 115
Lead 0.0519 mg/L 0.0010 104 85 115
Manganese 0.0506 mg/L 0.0010 101 85 115
Mercury 0.00540 mg/L 0.0010 108 85 115
Molybdenum 0.0535 mg/L 0.0010 107 85 115
Nickel 0.0504 mg/L 0.0010 101 85 115
Selenium 0.0526 mg/L 0.0014 105 85 115
Silver 0.0207 mg/L 0.0010 103 85 115
Thallium 0.0531 mg/L 0.0010 106 85 115
Tin 0.0528 mg/L 0.0010 106 85 115
Uranium 0.0537 mg/L 0.00030 107 85 115
Vanadium 0.0509 mg/L 0.0010 102 85 115
Zinc 0.0541 mg/L 0.0010 107 85 115
Sample ID C09060141-DIOBMS4 Sample Matrix Spike Run ICPMS2-C_090605A 06/05/09 1628
Arsenic 0.0598 mg/L 0.0010 110 70 130
Beryllium 0.0526 mg/L 0.010 105 70 130
Cadmium 0.0533 mg/L 0.010 107 70 130
Chromium 0.0492 mg/L 0.050 98 70 130
Qualifiers
RL Analyte reporting limit ND Not detected at the reporting limit
MDC Minimum detectable concentration
EtERGY
LARORA TORIES
ENERGYLABORA TORIES INC 2393 Sail Creek Hihway 82601 RO Box 3258 Caspei WV82602
Toil Free 888.235.0515 307235 0515 Fax [phone] casperenergy/ab.com www energy/ab corn
QAIQC Summary Report
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Lead
Manganese
Qualifiers
RI %REC Low Limit High Limit
0.010
0.010
0.050
0.010
0.0010
0.10
0.050
0.0010
0.010
0.10
0.10
0.00030
0.10
0.010
0.0010
0.010
0.010
0.0010
0.010
0.010
0.050
0.010
0.0010
0.0010
0.0010
0.0010
0.010
0.0010
0.0010
0.00030
0.0010
0.010
Run ICPMS2-C_090605A
95 70 130
98 70 130
105 70 130
103 70 130
112 70 130
109 70 130
98 70 130
111 70 130
90 70 130
108 70 130
100 70 130
70 130
100 70 130
105 70 130
Run ICPMS2-C_090605A
107 70 130
101 70 130
105 70 130
96 70 130
94 70 130
96 70 130
103 70 130
101 70 130
111 70 130
107 70 130
96 70 130
107 70 130
89 70 130
106 70 130
100 70 130
70 130
98 70 130
101 70 130
Run ICPMS2-C_090605A
106 70 130
100 70 130
103 70 130
98 70 130
95 70 130
95 70 130
104 70 130
70 130
06/05/09 1635
2.1 20
3.7 20
1.7 20
2.2 20
1.8 20
2.2 20
20
1.9 20
1.3 20
1.6 20
2.1 20
20
0.9 20
1.6 20
0.2 20
1.7 20
2.5 20
3.4 20
06/05/09 1823
RI Analyte reporting limit The analyte level was greater than four times the spike level In
accordance with the method recovery is not calculated
MDC Minimum detectable concentration
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater Re-Sample
Count Result Units
Report Date 07/14/09
Work Order C09050941
RPD RPDLimit Qual
Batch R119190
06/05/09 1628
Method E200.8
Sample ID C09060141-OIOBMS4 Sample Matrix Spike
Cobalt 0.0479 mg/L
Copper 0.0492 mg/I
Lead 0.0528 mg/L
Manganese 0.0570 mgJL
Mercury 0.00561 mg/L
Molybdenum 0.0556 mg/L
Nickel 0.0499 mg/L
Selenium 0.0558 mg/L
Silver 0.01 80 mg/L
Thallium 0.0539 mg/L
Tin 0.0501 mg/L
Uranium 0.338 mg/L
Vanadium 0.0503 mg/L
Zinc 0.0598 mg/I
Sample ID C09060141-OIOBMSD Sample Matrix Spike Duplicate
Arsenic 0.0585 mg/L
Beryllium 0.0507 mg/I
Cadmium 0.0525 mg/L
Chromium 0.0481 mg/L
Cobalt 0.0470 mg/L
Copper 0.0481 mg/I
Lead 0.0518 mg/I
Manganese 0.0560 mg/I
Mercury 0.00554 mg/I
Molybdenum 0.0547 mg/I
Nickel 0.0488 mg/I
Selenium 0.0542 mg/I
Silver 0.01 79 mg/I
Thallium 0.0530 mg/I
Tin 0.0500 mg/I
Uranium 0.333 mg/I
Vanadium 0.0490 mg/I
Zinc 0.0578 mg/I
Sample ID C09060101-OO4BMS4 ifi Sample Matrix Spike
0.266 mg/I
0.250 mg/I
0.259 mg/I
0.247 mg/I
0.240 mg/I
0.242 mg/I
0.260 mg/I
3.72 mg/I
0.0010
0.010
0.010
0.050
0.010
0.010
0.050
0.010
ND Not detected at the reporting limit
ENERGVLABORA TORIES INC P2393 Salt Creek Hibway 82501 RC Box 3258 Casper WV82502
Toll Free 888235.0515 307235 0515 Fax [phone] casperenergylab.com Www.energylab.com
QAIQC Summary Report
Report Date 07/14/09
Work Order C09050941
ENERGY
LABOR/I rOB/Es
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater Re-Sample
Analyte Count Result Units
Method E200.8
Sample ID C09060101-OO4BMS4 ffi Sample Matrix Spike
Mercury 0.0276 mg/L
Molybdenum 0.275 mg/L
Nickel 0.258 mgIL
Selenium 0.268 mgIL
Silver 0.0901 mg/L
Thallium 0.261 mg/L
Tin 0.268 mgIL
0.285 mgIL
0.253 mg/L
0.264 mg/L
Sample ID C09060101-OO4BMSD Sample Matrix Spike Duplicate
Arsenic 0.266 mgIL
Beryllium 0.248 mgIL
Cadmium 0.260 mgIL
Chromium 0.244 mgIL
Cobalt 0.239 mgIL
Copper 0.241 mgIL
Lead 0.259 mgIL
Manganese 3.69 mgIL
Mercury 0.0274 mg/L
Molybdenum 0.276 mg/L
Nickel 0.254 mgIL
Selenium 0.265 mgIL
Silver 0.0836 mgIL
Thallium 0.258 mg/L
Tin 0.270 mgIL
Uranium 0.281 mg/L
Vanadium 0.250 mg/L
Zinc 0.263 mgIL
Run ICPMS2-C_090605A
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
Run ICPMS2-C_090605A 06/05109 1829
106 70 130 20
99 70 130 0.8 20
104 70 130 0.4 20
97 70 130 1.2 20
94 70 130 0.6 20
95 70 130 0.5 20
104 70 130 0.6 20
70 130 0.7 20
110 70 130 0.7 20
110 70 130 0.2 20
95 70 130 1.6 20
105 70 130 1.4 20
84 70 130 7.5 20
103 70 130 1.2 20
108 70 130 0.6 20
112 70 130 1.4 20
100 70 130 20
93 70 130 0.5 20
Method E200.8
Sample ID LFB
Iron
Laboratory Fortified Blank
1.29 mgIL
Run ICPMS4-C_090707A
0.0010 103 85 115
Batch R120545
07/07/09 1200
Sample ID LRB
Iron
Sample ID C09050941-003BM54
Iron
Sample ID C09050941-OO3BMSD
Iron
0.0006
Run ICPMS4-C_090707A
Run ICPM54-C_090707A
0.030 98 70 130
Run ICPMS4-C_090707A
0.030 112 70 130
Qualifiers
RL Analyte reporting limit The analyte level was greater than four times the spike level In
accordance with the method recovery is not calculated
MDC Minimum detectable concentration
RL %REC Low Limit High Limit RPD RPDL1mit Qual
Uranium
Vanadium
Zinc
Batch R119190
06/05/09 1823
110
110
97
106
90
104
107
114
101
94
0.0010
0.10
0.050
0.0012
0.010
0.10
0.10
0.00030
0.10
0.010
0.0010
0.010
0.010
0.050
0.010
0.010
0.050
0.010
0.0010
0.10
0.050
0.0012
0.010
0.10
0.10
0.00030
0.10
0.010
Method Blank
ND mg/L
Sample Matrix Spike
6.12 mg/L
Sample Matrix Spike Duplicate
7.02 mg/L
07/07/09 1213
07/07/09 1335
07/07/09 1341
14 20
ND Not detected at the reporting limit
ElEROr
LABORA TORIES
ENERGYLABORA TORIES INC -2393 Sail creek Hiqhway 82601 Box 3258 Casper WY82602
Toll Free 888.235.0515 3072350515 Fax [phone] casperenergy/ab.com wwwenergy/ab.com
QA/QC Summary Report
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater Re-Sample
Report Date 07/14/09
Work Order C09050941
RPD RPDLimit QualAnalyteCountResultUnitsRL%REC Low Limit High Limit
Method E353.2 Batch R119167
Sample ID MBLK-1
Nitrogen NitrateNitrite as
Method Blank
ND mg/L 0.03
Run TECHNICON_090605A 06/05/09 1012
Sample ID LCS-2
Nitrogen NitrateNitrite as
Laboratory Control Sample
2.72 mg/L 0.10 109
Run TECHNICON_090605A
90 110
06/05/09 1031
Sample ID C09050772-O01 EMS
Nitrogen NitrateNitrite as
Sample Matrix Spike
3.71 mg/L 0.10 97
Run TECHNICON_090605A
90 110
06105/09 1129
Sample ID C09050772-OOIEMSD
Nitrogen NitrateNitrite as
Sample Matrix Spike Duplicate
3.75 mg/L 0.10 99
Run TECHNICON_090605A
90 110 1.1
06105/09 1132
10
Sample ID C09050941-OO7DMS
Nitrogen NitrateNitrite as
Sample Matrix Spike
2.11 mg/L 0.10 102
Run TECHNICON_090605A
90 110
06/05/09 1209
Sample ID C09050941-OO7DMSD
Nitrogen NitrateNitrite as
Sample Matrix Spike Duplicate
2.16 mgIL 0.10 105
Run TECHNICON_090605A
90 110 2.3
06/05109 1212
10
Method E900.1 Batch GA-0240
Sample ID MB-GA-0240
Gross Alpha minus Rn
Gross Alpha minus Rn Precision
Gross Alpha minus Rn MDC
Method Blank
0.7 pCi/L
0.6 pCiJL
0.9 pCi/L
Run BERTHOLD 770-2_090609A 06/11/09 1254
Sample ID LCS-GA-0240
Gross Alpha minus Rn
Laboratory Control Sample
25.6pCilL 95
Run BERTHOLD 770-2_090609A
70 130
06/11/09 1254
Sample ID C09050878-OOIAMS
Gross Alpha minus Rn
Sample Matrix Spike
26.6pCi/L 97
Run BERTHOLD 770-2_090609A
70 130
06/11/09 1254
Sample ID C09050878-OOIAMSD
Gross Alpha minus Rn
Sample Matrix Spike Duplicate
27.8pCi/L 101
Run BERTHOLD 770-2_090609A
70 130 4.4
06/11/09 1254
27
Method E900.1
Sample ID MB-GA-0242
Gross Alpha minus Rn
Gross Alpha minus Rn Precision
Gross Alpha minus Rn MDC
Method Blank
0.4 pCi/L
0.3 pCi/L
0.4 pCi/L
Run G5000W_090616A
Batch GA-0242
06/18/09 1435
Sample ID LCS-GA-0242
Gross Alpha minus Rn
Laboratory Control Sample
30.8pCi/L 116
Run G5000W_090616A
70 130
06/18/09 1435
Sample ID C09060152-OOIAMS
Gross Alpha minus Rn
Sample Matrix Spike
26.3pCi/L 94
Run G5000W_090616A
70 130
06/18/09 1435
Sample ID C09060152-OOIAMSD
Gross Alpha minus Rn
Sample Matrix Spike Duplicate
27.7pCi/L 99
Run G5000W090616A
70 130 5.4
06/18/09 1435
23.8
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
ND Not detected at the reporting limit
Not detected at minimum detectable concentration
ENERGYLABORA TORIES INC 2393 Sail Creak Hiibway 82601 .RC Box 3258W Caspe WV82602
Toll Free 888.235.0515 S907235.0515 Fax [phone] caspereriergylab.com wwi.genergy/ab.comElERGY
LARORA TORIES
QAIQC Summary Report
Client Denison Mines USA Corp Report Date 07/14109
Project 2nd Quarter Groundwater Re-Sample Work Order C09050941
Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method SW8260B Batch Ri 19060
Sample ID 03-Jun-09_MBLK_8 Method Blank Run 5975V0C1_090603A 06/03/09 1504
Acetone ND ug/L 20
Benzene ND ug/L 1.0
Carbon tetrachioride ND ug/L 1.0
Chloroform ND ug/L 1.0
Chloromethane ND ugfL 1.0
mp-Xylenes ND ugIL 1.0
Methyl ethyl ketone ND ug/L 20
Methylene chloride ND ug/L 1.0
Naphthalene ND ug/L 1.0
o-Xylene ND ug/L 1.0
Toiuene ND ug/L 1.0
Xylenes Total ND ug/L 1.0
Surr Dibromofluoromethane 1.0 97 70 130
Surr p-Bromofluorobenzene 1.0 103 80 120
Surr Toluene-d8 1.0 90 80 120
Surr 2-Dichlorobenzene-d4 1.0 99 80 120
Sample ID C09050941-OOIEMS Sample Matrix Spike Run 5975V0C1_090603A 06/04/09 1009
Acetone 1200 ug/L 200 125 70 130
Benzene 110 ugiL 10 114 70 130
Carbon tetrachloride 130 ug/L 10 128 70 130
Chloroform 130 ug/L 10 128 70 130
Chloromethane 140 ug/L 10 137 70 130
mp-Xylenes 230 ug/L 10 115 70 130
Methyl ethyl ketone 1200 ug/L 200 118 70 130
Methylene chloride 150 ug/L 10 149 70 130
Naphthalene 73 ug/L 10 73 70 130
o-Xylene 110 ug/L 10 114 70 130
Toluene 110 ug/L 10 113 70 130
Xylenes Total 340 ug/L 10 114 70 130
Surr Dibromofluoromethane 10 106 70 130
Surr p-Bromofluorobenzene 10 116 80 120
Surr Toluene-d8 10 97 80 120
Surr 2-Dichlorobenzene-d4 10 92 80 120
Sample ID C09050941-OOIEMSD Sample Matrix Spike Duplicate Run 5975V0C1_090603A 06/04/09 1045
Acetone 1100 ug/L 200 114 70 130
Benzene 110 ug/L 10 113 70 130 0.7 20
Carbon tetrachloride 120 ug/L 10 123 70 130 3.8 20
Chloroform 120 ug/L 10 122 70 130 5.1 20
Chloromethane 130 ug/L 10 129 70 130 20
mp-Xylenes 230 ugIL 10 114 70 130 0.3 20
Methyl ethyl ketone 1100 ug/L 200 111 70 130 5.9 20
Methylene chloride 140 ug/L 10 140 70 130 5.8 20
Qualifiers
RL Analyte reporting limit ND Not detected at the reporting limit
MDC Minimum detectable concentration Spike recovery outside of advisory limits
QAIQC Summary Report
Client Denison Mines USA Corp Report Date 07/14109
Project 2nd Quarter Groundwater Re-Sample Work Order C09050941
Method SW82608
Sample ID C09050941-OOIEMSD ifi Sample Matrix Spike Duplicate
Naphthalene 77 ug/L
o-Xylene 110 ug/L
Toluene 110 ug/L
Xylenes Total 340 ugIL
Surr Dibromofluoromethane
Surr p-Bromofluorobenzene
Surr Toluene-d8
Surr 2-Dichlorobenzene-d4
Sample ID 03-Jun-09_LCS_3
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chioromethane
mp-Xylenes
Methyl ethyl ketone
Methylene chloride
Naphthalene
o-Xylene
Toluene
Xylenes Total
Surr Dibromofluoromethane
Surr p-Bromofluorobenzene
Surr Toluene-d8
Surr 2-Dichlorobenzene-d4
Laboratory Control Sample
110 ug/L
11 ugh
12 ug/L
12 ugIL
11 ug/L
22 ug/L
110 ug/L
13 ug/L
7.4 ugiL
11 ug/L
11 ug/L
32 ug/L
Run 5975VOC1_090603A
20 106 70 130
1.0 108 70 130
1.0 117 70 130
1.0 118 70 130
1.0 115 70 130
1.0 108 70 130
20 105 70 130
1.0 128 70 130
1.0 74 70 130
1.0 107 70 130
1.0 107 70 130
1.0 107 70 130
1.0 102 70 130
1.0 110 80 130
1.0 96 80 120
1.0 94 80 120
06/03/09 1203
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
E1ERGY
LABORA TORIES
ENERGYLABORA TORIES INC 2393 Sail Creek H4hway 82601 P0 Box 3258 Caspe WV82602
Toil Free 888.235.0515 307235 0515 Fax [phone] casperenergy/ab.com www.energylab.com
Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit
Batch
Qual
R119060
Run 5975V0C1_090603A
10 77 70 130
10 113 70 130
10 114 70 130
10 114 70 130
10 100 70 130
10 114 80 120
10 96 80 120
10 92 80 120
06/04/09 1045
5.3 20
0.7 20
0.7 20
0.5 20
10
10
10
10
ND Not detected at the reporting limit
QAIQC Summary Report
Analyte
Method SW8260B
Sample ID 04-June-09_LCS_3
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
mp-Xylenes
Methyl ethyl ketone
Methylene chloride
Naphthalene
o-Xylene
Toluene
Xylenes Total
Surr Dibromofluoromethane
Surr p-Bromofluorobenzene
Surr Toluene-d8
Surr 2-Dichlorobenzene-d4
Count Result Units
j.fi Laboratory Control Sample
93 ug/L
9.6 ugJL
11 ugh
11 ug/L
9.6 ug/L
20 ug/L
77 ug/L
10 ughL
7.7 ug/L
10 ug/L
10 ug/L
30 ug/L
RL %REC Low Limit High Limit
Run GCMS2_090604A
20 93 70 130
1.0 96 70 130
1.0 111 70 130
1.0 111 70 130
1.0 96 70 130
1.0 99 70 130
20 77 70 130
1.0 103 70 130
1.0 77 70 130
1.0 101 70 130
1.0 102 70 130
1.0 100 70 130
1.0 107 70 130
1.0 105 80 130
1.0 102 80 120
1.0 94 80 120
RPD RPDLimit
Batch R119126
06/04/09 1125
Sample ID 04-June-09_MBLK_6 Method Blank
Acetone ND
Benzene ND
Carbon tetrachloride ND
Chloroform ND
Chloromethane ND
mp-Xylenes ND
Methyl ethyl ketone ND
Methylene chloride ND
Naphthalene ND
o-Xylene ND
Toluene ND
Xylenes Total ND
Surr Dibromofluoromethane
Surr p-Bromofluorobenzene
Surr Toluene-d8
Surr 2-Dichlorobenzene-d4
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
20
1.0
1.0
1.0
1.0
1.0
20
1.0
1.0
1.0
1.0
1.0
1.0 100 70 130
1.0 106 80 120
1.0 98 80 120
1.0 97 80 120
E1SERGY
yI8ORA TORIES
ENERGYLASORA TORIES INC 2393 Sail Creek HI/7way 82601 P0 Sax 3258 Caspe4c WY82602
____________re//Free 888.235 0515 307235.0515 Fax [phone] casperenergy/ab.com wwwenergy/ab.carn
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater Re-Sample
Report Date 07/14/09
Work Order C09050941
Run GCMS2_090604A 06/04/09 1319
ug/L
ug/L
ug/L
ugIL
ug/L
ugfL
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
Sample ID C09050879-OO7AMS jfi Sample Matrix Spike Run GCMS2_090604A
Acetone 1100 ug/L 200 112 70 130
Benzene 100 ug/L 10 102 70 130
Carbon tetrachloride 130 ug/L 10 126 70 130
Chloroform 130 ug/L 10 130 70 130
Chloromethane 110 ug/L 10 112 70 130
mp-Xylenes 200 ug/L 10 102 70 130
Methyl ethyl ketone 920 ug/L 200 92 70 130
Methylene chloride 120 ug/L 10 122 70 130
06/04/09 2124
ND Not detected at the reporting limit
ENERGYLAHORATORIES INC 2393 Sail Creek Hiqhway 82601 RO Box 3258W Caspei WY82602
Toil Free 888.235.0515 307235.0515 Fax [phone] caaperenergy/acom ww..energy/ab.com
LABORI1 TORIES
QAIQC Summary Report
Method SW8260B
Sample ID C09050879-OO7AMS Sample Matrix Spike
Naphthalene 94 ug/L
o-Xylene 110 ug/L
Toluene 110 ug/L
Xylenes Total 310 ug/L
Surr Dibromofluoromethane
Surr p-Bromofluorobenzene
Surr Toluene-d8
Surr 2-Dichlorobenzene-d4
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
mp-Xylenes
Methyl ethyl ketone
Methylene chloride
Naphthalene
o-Xylene
Toluene
Xylenes Total
Surr Dibromofluoromethane
Surr p-Bromofluorobenzene
Surr Toluene-d8
Surr 2-Dichlorobenzene-d4
Run GCMS2_090604A
200 98 70 130
10 102 70 130
10 118 70 130
10 118 70 130
10 106 70 130
10 102 70 130
200 83 70 130
10 110 70 130
10 98 70 130
10 107 70 130
10 106 70 130
10 103 70 130
10 109 70 130
10 106 80 120
10 102 80 120
10 94 80 120
20
6.6 20
9.4 20
5.9 20
0.8 20
11 20
11 20
3.8 20
20
0.4 20
0.5 20
10
10
10
10
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater Re-Sample
Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Report Date 07/14/09
Work Order C09050941
10 94
10 107
10 107
10 104
10 121
10 105
10 102
10 98
Run GCMS2_090604A
70 130
70 130
70 130
70 130
70 130
80 120
80 120
80 120
Sample ID C09050879-OO7AMSD Sample Matrix Spike Duplicate
Batch R119126
06104/09 2124
06/04/09 2202
980
100
120
120
110
200
830
110
98
110
110
310
ug/L
ug/L
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ug/L
ug/L
ug/L
ug/L
ug/L
ugh
ug/L
ug/L
ug/L
ND Not detected at the reporting limit
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Energy Laboratories Inc
Wo rkorde Receipt Checklist
Denison Mines USA Corp C09050941
Login completed by Kimberly Humiston Date and Time Received 5/29/2009 925 AM
Reviewed by Received by at
Reviewed Date Carrier name Next Day Air
Shipping container/cooler in good condition Yes No Not Present
custody seals Intact on shipping container/cooler Yes No Not Present fl
custody seals intact on sample bottles Yes No Not Present
chain of custody present Yes No
chain of custody signed when relinquished and received Yes No
chain of custody agrees with sample labels Yes No
Samples in proper container/bottle Yes jj No
Sample containers intact Yes No
Sufficient sample volume for indicated test Yes No
All samples received within holding time Yes No
containerrremp Blank temperature rc On Ice
Water VOA vials have zero headspace Yes No No VOA vials submitted
Water pH acceptable upon receipt Yes No Not Applicable
contact and corrective Action comments
Custody seal had been scraped against something and partially torn Duct tape had not been removed or cut into
ENERGYLABORS4 TORIES INC 2393 Saft CreekHbway 82501 .RC Box 3258 Caspe WY82502
Toll Free 885235.0515 3072350515 Fax [phone] casperenergy/ab.com wwwenergylab.corn
CLIENT Denison Mines USA Corp Date 14-Jul-09
Project 2nd Quarter Groundwater Re-Sample CASE NARRATIVE
Sample Delivery Group C09050941
ORIGINAL SAMPLE SUBMITTALS
All original sample submittals have been returned with the data package
SAMPLE TEMPERATURE COMPLIANCE 4C 2C
Temperature of samples received may not be considered properly preserved by accepted standards Samples that are hand
delivered immediately after collection shall be considered acceptable if there is evidence that the chilling process has begun
GROSS ALPHA ANALYSIS
Method 900.0 for gross alpha and gross beta is intended as drinking water method for low TDS waters Data provided by
this method for non potable waters should be viewed as inconsistent
RADON IN AIR ANALYSIS
The desired exposure time is 48 hours days The time delay in returning the canister to the laboratory for processing
should be as short as possible to avoid excessive decay Maximum recommended delay between end of exposure to
beginning of counting should not exceed days
SOIL/SOLID SAMPLES
All samples reported on an as received basis unless otherwise indicated
ATRAZINE SIMAZINE AND PCB ANALYSIS USING EPA 505
Data for Atrazine and Simazine are reported from EPA 525.2 not from EPA 505 Data reported by ELI using EPA method
505 reflects the results for seven individual Aroclors When the results for all seven are ND not detected the sample
meets EPA compliance criteria for PCB monitoring
SUBCONTRACTING ANALYSIS
Subcontracting of sample analyses to an outside laboratory may be required If so ENERGY LABORATORIES will utilize its
branch laboratories or qualified contract laboratories for this service Any such laboratories will be indicated within the
Laboratory Analytical Report
BRANCH LABORATORY LOCATIONS
eli-b Energy Laboratories Inc Billings MT
eli-g Energy Laboratories Inc Gillette WY
eli-h Energy Laboratories Inc Helena MT
eli-r Energy Laboratories Inc Rapid City SD
eli-t Energy Laboratories Inc College Station TX
CERTIFICATIONS
USEPA WY00002 Radiochemical WY00937 FL-DOH NELAC E87641 Radiochemical E871017 California 02118CA
Oregon WY200001 Utah 3072350515 Virginia 00057 Washington C1903
ISO 17025 DISCLAIMER
The results of this Analytical Report relate only to the items submitted for analysis
ENERGY LABORATORIES INC CASPERWY certifies that certain method selections contained in this report meet
requirements as set forth by the above accrediting authorities Some results requested by the client may not be covered
under these certifications All analysis data to be submitted for regulatory enforcement should be certified in the sample
state of origin Please verify ELIs certification coverage by visiting www.energylab.com
ELI appreciates the opportunity to provide you with this analytical service For additional information and services visit our
web page www.energylab.com
THIS IS THE FINAL PAGE OF THE LABORATORY ANALYTICAL REPORT
ENSRGY
LAI3OIA TORIES
ENERGVLABORA TORIES INC 2393 Sail Creek H4bway 82501 P0 Box 3258 Caspe WY82602
Toll Free 888235.0515 3072350515 Pa 307234.1639 casperenergy/ab.com www.energylab.comEtERGY
LAI3OTA TORIES
ANALYTICAL SUMMARY REPORT
July 04 2009
Denison Mines USA Corp
6425 Hwy 191
Blanding UT 84511
Workorder No C09050570 Quote ID C1640 POC Wells Monthly Groundwater Sampling
Project Name 2nd Quarter Groundwater
Energy Laboratories Inc received the following samples for Denison Mines USA Corp on 5/19/2009 for analysis
Sample ID Client Sample ID Collect Date Receive Date Matrix Test
C09050570-001 MW 05/18/09 0940 05/19/09 Aqueous Metals by ICP/ICPMS Dissolved
Alkalinity
QA Calculations
Chloride
Fluoride
Nitrogen Ammonia
Nitrogen Nitrate Nitrite
pH
Gross Alpha minus Rn222 and Uranium
Solids Total Dissolved
Sulfate
SW8260B VOCs Standard List
C09050570-002 MW 05/16/09 1332 05/19/09 Aqueous Same As Above
C09050570-003 MW 11 05/17/09 0857 05/19/09 Aqueous Same As Above
C09050570-004 MW 12 05/16/09 1516 05/19/09 Aqueous Same As Above
09050570-005 MW 14 05/16/09 0859 05/19/09 Aqueous Same As Above
C09050570-006 MW 15 05/16/09 1117 05/19/09 Aqueous Same As Above
C09050570-007 MW 26 05/18/09 0905 05/19/09 Aqueous Same As Above
C09050570-008 MW 60 05/18/09 0800 05/19/09 Aqueous Same As Above
C09050570-009 Trip Blank 05/18/09 0000 05/19/09 Aqueous SW8260B VOCs Standard List
As appropriate any exceptions or problems with the analyses are noted in the Laboratory Analytical Report the
QNQC Summary Report or the Case Narrative
If you have any questions regarding these tests results please call
Report Approved By
Steven Caristori
Technical Director
EPERGY
LABORA TORIES
ENERGYLABORA TORIES INC 2393 Sail Creek Hiqbway 82601 P0 Sex 3258 Caspe WV82602
____________Tel/Free 888.235.0515 307235.0515 Fax [phone] casper1energy/ab.com wwwenergylab.coin
u.AIUC Summary Report
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater
Report Date 07/04/09
Work Order C09050570
A1e Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method A4500-F Batch Ri 18489
Sample ID MBLK-1
Fluoride
Method Blank
ND mg/L 0.05
Run MANTECH_090521A 05/21/09 0939
Sample ID LCS-1
Fluoride
Laboratory Control Sample
0.980 mg/L 0.10 98
Run MANTECH_090521A 05/21/09 0945
90 110
Sample ID C09050570-OO4AMS
Fluonde
Sample Matrix Spike
1.26 mg/L 0.10 95
Run MANTECH_090521A 05/21/09 1152
80 120
Sample ID C09050570-OO4AMSD
Fluoride
Sample Matrix Spike Duplicate
1.26 mg/L 0.10 95
Run MANTECH.090521A 05/21/09 1155
80 120 10
Sample ID C09050591-OO6AMS
Fluoride
Sample Matrix Spike
1.39 mg/L 0.10 102
Run MANTECH_090521A 05/21/09 1239
80 120
Sample ID C09050591-OO6AMSD
Fluoride
Sample Matrix Spike Duplicate
1.39 mg/L 0.10 102
Run MANTECH_090521A 05/21/09 1241
80 120 10
Method A4500-H Analytical Run 0R10N555A_090520A
Sample ID ICVI_090520j
pH
Initial Calibration Verification Standard
6.87 s.u 0.010 100
05/20/09 1125
98 102
Method A4500-H Batch 090520_1_PH-W_555A-2
Sample ID C09050510-OO6ADUP
pH
Sample Duplicate
7.15 s.u 0.010
Run 0R10N555A_090520A 05/20/09 1223
0.3 10
Method A4500-NH3 Batch Ri 19259
Sample ID MBLK-1
Nitrogen Ammonia as
Method Blank
ND mg/L 0.02
Run TECHNICON_090608B 06/08/09 1449
Sample ID LCS-2
Nitrogen Ammonia as
Laboratory Control Sample
18.4 mg/L 0.20 92
Run TECHNICON_090608B 06/08/09 1452
80 120
Sample ID C09050570-OO5DMS
Nitrogen Ammonia as
Sample Matrix Spike
1.76 mg/L 0.050 88
Run TECHNICON_090608B 06/08/09 1503
80 120
Sample ID C09050570-OO5DMSD
Nitrogen Ammonia as
Sample Matrix Spike Duplicate
1.77 mg/L 0.050 89
Run TECHNICON_090608B 06/08/09 1505
80 120 0.6 20
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
ND Not detected at the reporting limit
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater
Analyte
Method A4500-S04
Sample ID LCS-1_090528
Sulfate
Sample ID MBLK-1_090528
Sulfate
Sample ID C09050560-OO2AMS
Sulfate
Sample ID C09050560-OO2AMSD
Sulfate
Sample ID C09050570-008AMS
Sulfate
Sample ID C09050570-OO8AMSD
Sulfate
Method A4500-S04
Sample ID LCS-1_090609
Sulfate
Sample ID MBLK-1_090609
Sulfate
Sample ID C09050570-OOIAMS
Sulfate
Sample ID C09050570-OOIAMSD
Sulfate
Report Date 07/04/09
Work Order C09050570
RPD RPDLImIt Qual
Batch 090528_1_S04-TURB-W
05/28/09 1229
05/28/09 1230
05/28/09 1242
05/28/09 1243
10
05/28/09 1322
05/28/09 1324
0.5 10
Batch 090609_1_S04-TURB-W
06/09/09 1229
06/09/09 1230
06/09/09 1257
06/09/09 1257
0.6 10
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
ND Not detected at the reporting limit
EIERCY
LABORA TORIES
ENERGYLABORA TORIES INC 2393 Sail Creek Hiqhway 82501 .Rc Box 3258 Caspe WY82502
To/I Free 888.235.0515 307235.0515 Fax [phone] caspercenergylab1com www energy/a/i corn
QAIQC Summary Report
Result Units RL %REC Low Limit High Limit
Laboratory Control Sample
4810 mg/L 59 100
Run TURB-2_090528A
90 110
Method Blank
ND mgIL 0.6
Run TURB-2_090528A
Sample Matrix Spike
321 mg/L 1.0 97
Run TURB-2_090528A
90 110
Sample Matrix Spike Duplicate
33.2 mg/L 1.0 100
Run TURB-2_090528A
90 110 1.7
Sample Matrix Spike
20.2 mg/L 1.0 101
Run TURB-2_090528A
90 110
Sample Matrix Spike Duplicate
20.3 mg/L 1.0 101
Run TURB-2_090528A
90 110
Laboratory Control Sample
5150 mg/L
Method Blank
ND mg/L
Sample Matrix Spike
1870 mg/L
Sample Matrix Spike Duplicate
1860 mg/L
Run TURB-2_090609A
59 107 90 110
Run Tt.JRB-2_090609A
0.6
Run TURB-2_090609A
30 101 90 110
Run TURB-2_090609A
30 100 90 110
ENERGYLABORA TORIES INC 2393 Sail Creek Hiqhway 82601 RU Box 3258 Caspei WY82602
____________Toll Free 888.235.0515 307235.0515 FaA 307234.1639 casperenergy/ab.com wwwenergylab.com
WMIWIa aummary nepon
Report Date 07/04/09
Work Order C09050570
EIERGY
LABORA TORIES
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater
Analyte Result Units RL %REC Low Umit High Limit RPD RPDLimit Qual
Method E200.7 Batch R119133
Sample ID C09050570-OO4BMS
Calcium
Iron
Magnesium
Potassium
Sodium
Sample Matrix Spike
624 mg/I
1.90 mg/I
381 mg/I
206 mg/L
450 mg/L
Sample ID C09050570-OO4BMSD Sample Matrix Spike Duplicate
Calcium 599 mg/I
Iron 1.83 mg/L
Magnesium 366 mg/L
Potassium 198 mg/I
Sodium 429 mg/L
Sample ID LFB
Calcium
Iron
Magnesium
Potassium
Sodium
Laboratory Fortified Blank
51 mg/L
5.2 mg/I
52 mg/I
51 mg/I
52 mg/I
Run ICP3C_090604A 06/04/09 1759
70 130 4.1 20
70 130 4.1 20
70 130 3.9 20
70 130 4.3 20
70 130 4.6 20
Run ICP3-090604A
Run ICP3-C_090604A
103 85 115
105 85 115
105 85 115
101 85 115
103 85 115
06/05109 0004
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
ND Not detected at the reporting limit
Spike recovery outside of advisory limits
Run ICP3-C_090604A
77 70 130
75 70 130
81 70 130
77 70 130
76 70 130
06/04/09 1736
67
72
75
73
68
Sample ID MB-22410 Method Blank
Calcium ND mg/L
Iron ND mg/I
Magnesium ND mg/L
Potassium 0.2 mg/I
Sodium 0.3 mg/I
1.0
0.069
1.0
1.0
1.0
1.0
0.069
1.0
1.0
1.0
0.2
0.01
0.2
0.03
0.1
0.50
0.030
0.50
0.50
0.50
06/04/09 1405
ENERGYLABORA TORIES INC 2393 Sail Creek Hiqhway 82601 RU Box 8258 Caspei WY82602
Toll Free 888.235.0515 307235.0515 Fax [phone] casperenergy/ab.com www.energylab.comEIERGY
LABORA TORIES
UJAIUU summary epon
Client Denison Mines USA Corp Report Date 07/04/09
Project 2nd Quarter Groundwater Work Order C09050570
rA1e Result Units RI %REC Low Limit High Limit RPD RPDLimit Qual
Method E200.7 Batch R119344
Sample ID
Calcium
Magnesium
Potassium
Sodium
LRB Method Blank
0.3 mg/L
0.3 mg/I
ND mg/I
ND mg/I
0.2
0.2
0.03
0.1
Run ICP3-C_090609A 06109/09 1433
Sample ID
Calcium
Magnesium
Potassium
Sodium
LFB Laboratory Fortified Blank
54.8 mg/L
55.0 mg/L
56.2 mg/L
57.3 mg/L
0.50
0.50
0.50
0.50
109
110
112
115
Run ICP3-C_090609A
85 115
85 115
85 115
85 115
06/09/09 1439
Sample ID
Calcium
Magnesium
Potassium
Sodium
C09050570-OO2BMS Sample Matrix Spike
310 mg/I
232 mg/I
209 mg/I
623 mg/I
1.0
1.0
1.0
1.0
71
76
79
61
Run ICP3-C_090609A
70 130
70 130
70 130
70 130
06/09/09 1630
Sample ID
Calcium
Magnesium
Potassium
Sodium
C09050570-OO2BMSD Sample Matrix Spike Duplicate
327 mg/I
247 mg/I
221 mg/I
652 mg/I
1.0
1.0
1.0
1.0
77
82
84
73
Run ICP3-C_090609A
70 130
70 130
70 130
70 130
5.4
6.4
5.4
4.5
06/09/09 1636
20
20
20
20
Sample ID
Calcium
Magnesium
Potassium
Sodium
MB-22468 Method Blank
ND mg/I
ND mg/I
0.06 mg/I
ND mg/I
0.2
0.2
0.03
0.1
Run ICP3-C_090609A 06/09/09 1725
Method E200.7 Batch Ri 19437
Sample ID C09060041-OOICMS Sample Matrix Spike Run ICP3-C_090611A 06/12/09 0135
Calcium 89.5 mg/I 1.0 91 70 130
Magnesium 60.3 mg/I 1.0 88 70 130
Sodium 84.9 mg/I 1.0 95 70 130
Sample ID C09060041-OOICMSD Sample Matrix Spike Duplicate Run ICP3-C_090611A 06/12/09 0141
Calcium 86.2 mg/I 1.0 85 70 130 3.8 20
Magnesium 57.6 mg/I 1.0 83 70 130 4.6 20
Sodium 82.4 mg/I 1.0 90 70 130 3.1 20
Qualifiers
RI Analyte reporting limit ND Not detected at the reporting limit
MDC Minimum detectable concentration Spike recovery outside of advisory limits
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
Method Blank
ND mg/L
Laboratory Fortified Blank
48.6 mg/I
Method Blank
0.09 mg/I
Sample Matrix Spike
59.8 mg/I
Sample Matrix Spike Duplicate
51.9 mg/I
laboratory Fortified Blank
48.6 mg/I
E1SERGY
TOR/E.c
ENERGVLABORA TORIES INC 2393 Sail Creek Hihway 82601 P0 Box 3258 Caspe kVV82602
Toll Free 888.235.0515 3072350515 Fax [phone] casper4energylab.com wvw.energy/ab corn
QAIQG Summary Report
Result Units RI %REC Low Limit High Limit
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater
Analyte
Method E200.7
Sample ID LRB
Potassium
Sample ID IFS
Potassium
Sample ID MB-22453
Potassium
Sample ID C09050745-OO4BMS
Potassium
Sample ID C09050745-OO4BMSD
Potassium
Sample ID IFS
Potassium
Report Date 07/04/09
Work Order C09050570
RPD RPDLimit Qual
Batch R119527
Run ICP3-C_090612A 06/12/09 1254
Run ICP3-C_090612A 06/12/09 1259
97 85 115
Run ICP3-C_090612A 06/12/09 1317
Run ICP3-C_090612A 06/13/090010
113 70 130
Run ICP3-C_090612A 06/13/09 0016
97 70 130 14 20
Run ICP3-C_090612A 06/12/09 1259
97 85 115
0.03
0.50
0.03
1.0
1.0
0.50
ND Not detected at the reporting limit
EIERGY
LAI3ORA TORIES
ENERG VLABORA TORIES INC 2393 Salt Creek Hibway 82501 P0 Box 3258 Caspsc WV82502
Toll Free 888.235 0515 3021235.0515 FaK 307.234.1539 casperenergylab.com wwwenerqylab.com
QA/QG Summary Report
Report Date 07/04/09
Work Order C09050570
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater
Analyte Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method E200.8 Batch R118652
Sample ID LRB Method Blank Run ICPMS2-C_090526A 05/26/09 1106
Arsenic ND mg/L 0.0003
Beryllium ND mg/L 6E-05
Cadmium ND mg/L 6E-05
Chromium 0.0001 mg/L BE-OS
Cobalt ND mg/L 0-00010
Copper ND mg/L 4E-05
Lead ND mg/L 2E-05
Manganese ND mg/L 5E-05
Mercury ND mg/L 4E-05
Molybdenum ND mg/L 4E-05
Nickel ND mg/L 9E-05
Selenium ND mg/L 0.001
Thallium ND mg/L 3E-05
Tin ND mg/L 0.0001
Uranium ND mg/L 8E-06
Vanadium ND mg/L 9E-05
Zinc 0.0005 mg/L 6E-05
Sample ID LFB Laboratory Fortified Blank Run ICPMS2-C_090526A 05/26/09 1113
Arsenic 0.0491 mg/L 0.0010 98 85 115
Beryllium 0.0481 mg/L 0.0010 96 85 115
Cadmium 0.0500 mg/L 0.0010 100 85 115
Chromium 0.0481 mg/L 0.0010 96 85 115
Cobalt 0.0485 mg/L 0.0010 97 85 115
Copper 0.0471 mg/L 0.0010 94 85 115
Lead 0.0490 mg/L 0.0010 98 85 115
Manganese 0.0484 mg/L 0.0010 97 85 115
Mercury 0.00494 mg/L 0.0010 99 85 115
Molybdenum 0.0500 mg/L 0.0010 100 85 115
Nickel 0.0495 mg/L 0.0010 99 85 115
Selenium 0.0499 mg/L 0.0014 100 85 115
Thallium 0.0493 mg/L 0.0010 99 85 115
Tin 0.0491 mg/L 0.0010 98 85 115
Uranium 0.0467 mg/L 0.00030 93 85 115
Vanadium 0.0481 mg/L 0.0010 96 85 115
Zinc 0.0542 mg/L 0.0010 107 85 115
Sample ID C09050510-008BM54 Sample Matrix Spike Run ICPMS2-C_090526A 05/26/09 2342
Arsenic 0.0507 mgfL 0.0010 100 70 130
Beryllium 0.0439 mg/L 0.010 88 70 130
Cadmium 0.0490 mg/L 0.010 98 70 130
Chromium 0.0445 mg/L 0.050 89 70 130
Cobalt 0.0916 mg/L 0.010 183 70 130
Copper 0.0596 mg/L 0.010 119 70 130
Lead 0.0485 mg/L 0.050 97 70 130
Manganese 4.98 mg/L 0.010 9950 70 130
Qualifiers
RL Analyte reporting limit ND Not detected at the reporting limit
MDC Minimum detectable concentration Spike recovery outside of advisory limits
EIERGY
LABORA TORIES
ENERO YLABORA TORIES INC 2393 Saft CreekHqhway 82501 Box 3258 Casper WY82602
Toll Free 888.235 0515 307235 0515 Fax [phone] casperenergy/ab.com www.energylab.com
QAIQC Summary Report
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater
Report Date 07/04/09
Work Order C09050570
Analyte Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method E200.8 Batch R118652
Mercury
Molybdenum
Nickel
Selenium
Thallium
Tin
Uranium
Vanadium
Zinc
Sample ID C09050570-OO8BMS4 Sample Matrix Spike
Arsenic 0.0434 mg/L
Beryllium 0.0440 mg/L
Cadmium 0.0418 mg/I
Chromium 0.0400 mg/I
Cobalt 0.0397 mg/I
Copper 0.0408 mg/I
lead 0.0407 mg/I
Manganese 0.0394 mg/I
Mercury 0.00411 mg/I
Molybdenum 0.0401 mg/I
Nickel 0.0420 mg/I
Selenium 0.0427 mg/I
Thallium 0.0404 mg/I
Tin 0.0342 mg/I
Uranium 0.0399 mg/I
Vanadium 0.0404 mg/I
Qualifiers
Run ICPMS2-C90526A
Run ICPMS2-C_090526A
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
05/26/09 2342
05/26/09 2349
0.3 20
20
1.2 20
20
0.6 20
16 20
20
1.3 20
1.2 20
20
0.7 20
0.3 20
20
20
0.6 20
20
52 20 SR
RI Analyte reporting limit
MDC Minimum detectable concentration
Spike recovery outside of advisory limits
ND Not detected at the reporting limit
RPD exceeds advisory limit
Sample ID C09050510-008BM54 Sample Matrix Spike
0.00450 mg/I
0.0611 mg/I
0.107 mg/I
0.0502 mg/I
0.0486 mg/I
0.0357 mg/I
0.0518 mg/I
0.0463 mg/I
0.180 mg/I
Sample ID C09050510-OOSBMSD4 Sample Matrix Spike Duplicate
90 70 130
122 70 130
215 70 130
100 70 130
97 70 130
71 70 130
104 70 130
93 70 130
360 70 130
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Thallium
Tin
Uranium
Vanadium
Zinc
0.0508 mg/I
0.0426 mg/I
0.0485 mg/I
0.0442 mg/I
0.0910 mg/I
0.0506 mg/I
0.0483 mg/I
4.91 mg/I
0.00456 mg/I
0.0612 mg/I
0107 mg/I
0.0501 mg/I
0.0485 mg/I
0.0376 mg/I
0.0515 mg/I
0.0458 mg/I
0.308 mg/I
100
85
97
88
182
101
97
9820
91
122
213
99
97
75
103
92
615
0.0010
0.10
0.050
0.0010
0.10
0.10
0.00030
0.10
0.010
0.0010
0.010
0.010
0.050
0.010
0.010
0.050
0.010
0.0010
0.10
0.050
0.0010
0.10
0.10
0.00030
0.10
0.010
0.0010
0.010
0.010
0.050
0.010
0.010
0.050
0.010
0.0010
0.10
0.050
0.0010
0.10
0.10
0.00030
0.10
Run ICPMS2-C_090526A
86 70 130
88 70 130
84 70 130
79 70 130
79 70 130
82 70 130
81 70 130
78 70 130
82 70 130
80 70 130
84 70 130
85 70 130
81 70 130
68 70 130
80 70 130
79 70 130
05/27/09 0137
ENERGVLABORA TORIES INC 2393 Sail Creek Hibway 82601 RO Box 3258 Caspe1c WY82602
Toll Free 888.235.0515 307235.0515 Fax [phone] casperenergy/ab.coin wwwenergy/ab.comEPERGY
L.4SORA ORfE5
ujkiwu summary epon
Client Denison Mines USA Corp Report Date 07/04/09
Project 2nd Quarter Groundwater Work Order C09050570
RinalYte
Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method E200.8 Batch Ri 18652
Sample ID C09050570-OO8BMS4
Zinc
Sample Matrix Spike
00395 mg/L 0.010 49
Run ICPMS2-C_090526A
70 130
05/27/09 0137
Sample ID C09050570008BMSD4
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Thallium
Tin
Uranium
Vanadium
Zinc
Sample Matrix Spike Duplicate
0.0431 mg/L
0.0443 mg/L
0.0411 mg/L
0.0399 mg/L
0.0397 mg/L
0.0404 mg/L
0.0410 mg/L
0.0394 mg/L
0.00410 mg/L
0.0402 mg/L
0.0414 mg/L
0.0424 mg/L
0.0408 mg/L
00347 mg/L
0.0403 mg/L
0.0403 mg/L
0.0374 mg/L
0.0010
0.010
0.010
0.0010
0.010
0.010
0.0010
0.010
0.0010
0.0010
0.0010
0.0010
0.0010
00010
0.00030
0.0010
0.010
86
89
82
79
79
81
82
78
82
80
83
85
82
69
80
79
44
Run ICPMS2-C_090526A
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
0.7
0.7
1.5
0.3
0.1
0.9
0.6
0.1
0.3
0.3
1.3
0.7
0.9
0.8
0.3
5.7
05/27/09 0144
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
Method E200.8 Batch R118718
Sample ID LRB
Silver
Method Blank
ND mg/L 2E-05
Run ICPMS2-C_090527A 05/27/09 1536
Sample ID LFB
Silver
Laboratory Fortified Blank
0.0123 mg/L 0.0010 62
Run ICPMS2-C_090527A
85 115
05/27/09 1543
Sample ID LFB
Silver
Laboratory Fortified Blank
0.0198 mg/L 0.0010 99
Run ICPMS2-C_090527A
85 115
05/27/09 1554
Sample ID C09050570-0086MS4
Silver
Sample Matrix Spike
0.0117 mg/L 0.010 59
Run ICPMS2-C_090527A
70 130
05/27/09 2010
Sample ID C09050570-OOBBMSD4
Silver
Sample Matrix Spike Duplicate
0.0116 mg/L 0.010 58
Run ICPMS2-C_090527A
70 130 0.6
05/27/09 2017
20
Qualifiers
RL Analyte reporting limit ND Not detected at the reporting limit
MDC Minimum detectable concentration Spike recovery outside of advisory limits
Qua lifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
EN5RGY
TORIES
ENERGVLABORATORIES INC 2393 Sail Creek Highway
Toll Free 888.235.0515 307.235.0515 Fa 3072341639
82601 PC Box 3258 aspe WY82602
caspercenergyIab.com www.energylab.com
QAQG Summary Report
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater
Report Date 07/04/09
Work Order C09050570
Analyte Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method E353.2 Batch R118815
Sample ID MBLK-1 Method Blank
Nitrogen NitrateNitrite as ND mg/L 0.03
Run TECHNICON_090529A 05/29/09 1041
Sample ID LCS-2 Laboratory Control Sample
Nitrogen NitrateNitrite as 2.58 mg/L 0.10
Run TECHNICON_090529A 05/29/09 1107
103 90 110
Sample ID C09050621-OOIFMS Sample Matrix Spike
Nitrogen NitrateNitrite as 3.03 mg/L 0.10
Run TECHNICON_090529A 05/29/09 1147
114 90 110
Sample ID C09050621-OOIFMSD Sample Matrix Spike Duplicate
Nitrogen NitrateNitriteasN 3.01 mg/L 0.10
Run TECHNICON_090529A 05/29/09 1150
113 90 110 0.7 10
Sample ID C09050570-OO7DMS Sample Matrix Spike
Nitrogen NitrateNitrite as 261 mg/L 0.10
Run TECFINICON_090529A 05/29/09 1227
116 90 110
Sample ID C09050570-OO7DMSD Sample Matrix Spike Duplicate
Nitrogen NitrateNitrite as 2.60 mg/L 0.10
Run TECIINICON_090529A 05/29/09 1230
115 90 110 0.4 10
Method E900.1 Batch GA-0239
Sample ID MB-GA-0239 Method Blank
Gross Alpha minus Rn 0.7 pCi/L
Gross Alpha minus Rn Precision 0.4 pCi/L
Gross Alpha minus Rn MDC 0.4 pCi/L
Run G5000W_090605A 06/08/09 1359
Sample ID LCS-GA-0239 Laboratory Control Sample
Gross Alpha minus Rn 29.2 pCi/L
Run G5000W_090605A 06/08/09 1359
108 70 130
Sample ID C09050570-OO5CMS Sample Matrix Spike
Gross Alpha minus Rn 25.0 pCi/L
Run G5000Wfi9O6OSA 06/08/09 1359
90 70 130
Sample ID C09050570-OO5CMSD Sample Matrix Spike Duplicate
Gross Alpha minus Rn 23.2 pCi/L
Run G5000W_090605A 06/08/09 1359
83 70 130 7.3 23.4
ND Not detected at the reporting limit
Spike recovery outside of advisory limits
E1ERGY
LABORA TORIES
ENERGVLASORA TORIES INC 2393 Sail Creek H4qhway 82601 P0 Box 3258 Casper P1/182602
Toll Free 888.2350515 307235.0515 Far 307234.1639 casperenergyIab.com www energy/al corn
QAIQC Summary Report
Report Date 07/04/09
Work Order C09050570
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater
Analyte Result Units RL %REC Low Limit High Limit RPD RPDL1mIt QuJ
Method SW8260B Batch R118444
Sample ID 20-May-09_LCS_3 Laboratory Control Sample Run GCMS2_090520A 05/20/09 0841
Benzene 11 ug/L 1.0 106 70 130
Carbon tetrachloride 11 ug/L 1.0 111 70 130
Chloroform 11 ug/L 1.0 110 70 130
Chloromethane 11 ug/L 1.0 109 70 130
mp-Xylenes 22 ug/L 1.0 108 70 130
Methyl ethyl ketone 110 ug/L 20 111 70 130
Methylene chloride 11 ug/L 1.0 110 70 130
Naphthalene 9.9 ug/L 1.0 99 70 130
o-Xylene 11 ug/L 1.0 108 70 130
Toluene 11 ug/L 1.0 109 70 130
Xylenes Total 32 ug/L 1.0 108 70 130
Surr Dibromofluoromethane 1.0 120 70 130
Surr p-Bromofluorobenzene 1.0 112 80 130
Surr Toluene-d8 1.0 105 80 120
Surr 12-Dichlorobenzene-d4 1.0 110 80 120
Sample ID 20-May-09_MBLK_7 Method Blank Run GCMS2_090520A 05/20/09 1349
Benzene ND ug/L 1.0
Carbon tetrachioride ND ug/L 1.0
Chloroform ND ug/L 1.0
Chloromethane ND ug/L 1.0
mp-Xylenes ND ug/L 1.0
Methyl ethyl ketone ND ug/L 20
Methylene chloride ND ug/L 1.0
Nap hthalene ND ug/L 1.0
o-Xylene ND ug/L 1.0
Toluene ND ug/L 1.0
Xylenes Total ND ug/L 1.0
Surr Dibromofluoromethane 1.0 112 70 130
Surr p-Bromofiuorobenzene 1.0 118 80 120
Surr Toluene-d8 1.0 102 80 120
Surr 12-Dichlorobenzene-d4 1.0 110 80 120
Sample ID C09060570-OOIEMS Sample Matrix Spike Run GCMS2_090520A 05/20/09 2201
Benzene 1100 ug/L 100 107 70 130
Carbon tetrachloride 1200 ug/L 100 120 70 130
Chloroform 3300 ug/L 100 127 70 130
mp-Xylenes 1100 ug/L 100 108 70 130
o-Xylene 1100 ug/L 100 112 70 130
Toluene 1000 ug/L 100 105 70 130
Xylenes Total 2200 ug/L 100 110 70 130
Surr Dibromofluoromethane 100 129 70 130
Surr p-Bromofluorobenzene 100 123 80 120
Surr Toluene-d8 100 102 80 120
Surr 12-Dichlorobenzene-d4 100 114 80 120
Qualifiers
RL Analyte reporting limit ND Not detected at the reporting limit
MDC Minimum detectable concentration Spike recovery outside of advisory limits
ENSRGY
LA DORA TORIES
ENERGVLABORA TORIES INC 2393 Sail Creek Hibway 82501 R0 Box 3258 Casper WY82502
Toll Free 888.235.0515 307235.0515 Fax [phone] caspereaergy/ab.com www.energylab.com
QAIQC Summary Report
Report Date 07/04/09
Work Order C09050570
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater
Analyte Result Units RL %REC Low Limit High Limit RN RPDLimit Qual
Method 5W8260B Batch Ri 18444
Sample ID C09050570-OOIEMSD Sample Matrix Spike Duplicate Run GCMS2_090520A 05/20/09 2240
Benzene 1100 ugh 100 110 70 130 2.9 20
Carbon tetrachloride 1300 ug/L 100 125 70 130 4.6 20
Chloroform 3300 ug/L 100 135 70 130 2.4 20
mp-Xylenes 1100 ugIL 100 115 70 130 5.7 20
o-Xylene 1200 ug/L 100 117 70 130 4.6 20
Toluene 1100 ug/L 100 109 70 130 4.1 20
Xylenes Total 2300 ug/L 100 116 70 130 5.1 20
Surr Dibromofluoromethane 100 129 70 130 10
Surr p-Bromofluorobenzene 100 126 80 120 10
SurrToluene-d8 100 102 80 120 10
Surr i2.Dichlorobenzene-d4 100 117 80 120 10
Qualifiers
RL Analyte reporting limit ND Not detected at the reporting limit
MDC Minimum detectable concentration Spike recovery outside of advisory limits
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Energy Laboratories Inc
Workorder Receipt Checklist
Denison Mines USA Corp
Login completed by Corinne Wagner
Reviewed by
Reviewed Date
Shipping container/cooler in good condition
custody seals intact on shipping container/cooler
custody seals intact on sample bottles
chain of custody present
chain of custody signed when relinquished and received
chain of custody agrees with sample labels
Samples in proper container/bottle
Sample containers intact
Sufficient sample volume for indicated test
All samples received within holding time
container/Temp Blank temperature
Water VOA vials have zero headspace
Water pH acceptable upon receipt
contact and corrective Action comments
None
C09050570
Date and Time Received 5/19/2009 930 AM
Received by al
Carrier name Next Day Air
Yes No Not Present EJ
Yes No Not Present
Yes No Not Present
Yes No
Yes No
Yes No
YesEf No fl
Yes No
Yes No
Yes No fl
4C On Ice
Yes No No VOA vials submitted
Yes No Not Applicable
ENERGVLABORA TORIES INC 2393 Sail Creek Hihway 82601 P0 Box 3258 Caspei WY82602
Toil Free 888.235.0515 307.235.0515 Fax [phone] casperenergy/ab.com wwwenergy/ab.com
CLIENT Denison Mines USA Corp Date 04-Jul-09
Project 2nd Quarter Groundwater CASE NARRATIVE
Sample Delivery Group C09050570
ORIGINAL SAMPLE SUBMITTALS
All original sample submittals have been returned with the data package
SAMPLE TEMPERATURE COMPLIANCE 4C 2C
Temperature of samples received may not be considered properly preserved by accepted standards Samples that are hand
delivered immediately after collection shall be considered acceptable if there is evidence that the chilling process has begun
GROSS ALPHA ANALYSIS
Method 900.0 for gross alpha and gross beta is intended as drinking water method for low TDS waters Data provided by
this method for non potable waters should be viewed as inconsistent
RADON IN AIR ANALYSIS
The desired exposure time is 48 hours days The time delay in returning the canister to the laboratory for processing
should be as short as possible to avoid excessive decay Maximum recommended delay between end of exposure to
beginning of counting should not exceed days
SOIL/SOLID SAMPLES
All samples reported on an as received basis unless otherwise indicated
ATRAZINE SIMAZINE AND PCB ANALYSIS USING EPA 505
Data for Atrazine and Simazine are reported from EPA 525.2 not from EPA 505 Data reported by ELI using EPA method
505 reflects the results for seven individual Aroclors When the results for all seven are ND not detected the sample
meets EPA compliance criteria for PCB monitoring
SUBCONTRACTING ANALYSIS
Subcontracting of sample analyses to an outside laboratory may be required If so ENERGY LABORATORIES will utilize its
branch laboratories or qualified contract laboratories for this service Any such laboratories will be indicated within the
Laboratory Analytical Report
BRANCH LABORATORY LOCATIONS
eli-b Energy Laboratories Inc Billings MT
eli-g Energy Laboratories Inc Gillette WY
eli-h Energy Laboratories Inc Helena MT
eli-r Energy Laboratories Inc Rapid City SD
eli-t Energy Laboratories Inc College Station TX
CERTIFICATIONS
USEPA WY00002 Radiochemical WY00937 FL-DOH NELAC E87641 Radiochemical E871017 California O2IISCA
Oregon WY200001 Utah 3072350515 Virginia 00057 Washington C1903
ISO 17025 DISCLAIMER
The results of this Analytical Report relate only to the items submitted for analysis
ENERGY LABORATORIES INC CASPERWY certifies that certain method selections contained in this report meet
requirements as set forth by the above accrediting authorities Some results requested by the client may not be covered
under these certifications All analysis data to be submitted for regulatory enforcement should be certified in the sample
state of origin Please verify ELIs certification coverage by visiting www.energylab.com
ELI appreciates the opportunity to provide you with this analytical service For additional information and services visit our
web page www.energylab.com
THIS IS THE FINAL PAGE OF THE LABORATORY ANALYTICAL REPORT
EIERGY
LABORA TORIES
ENERGYLABORA TORIES INC 2393 Sail Creek Hghway 82601 PC Box3258 Casper WY82602
Toil Free 888.235.0515 307235.0515 Fax [phone] .casperenergy/ab.com wwwenerqy/ab.coni
QAIQC Summary Report
LABORATORIES
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater
Report Date 07104/09
Work Order C09050570
Analyte Result Units RL %REC Low Limit High Limit RPD RPDLimit
Method A2320 Batch R118490
Sample ID MBLK
Alkalinity Total as CaCO3
Carbonate as C03
Bicarbonate as HCO3
Method Blank
mg/L
ND mg/L
mg/L
0.2
Run MANTECH_090521B 05/21/09 1556
Sample ID LCS
Alkalinity Total as CaCO3
Laboratory Control Sample
53.6 mgIL 5.0 102
Run MANTEC1t.090521B 05/21/09 1618
90 110
Sample ID C09050501-OO6AMS
Alkalinity Total as CaCO3
Sample Matrix Spike
161 mg/L 5.0 101
Run MANTECH_090521B 05/21/09 1632
80 120
Sample ID C09050501-OO6AMSD
Alkalinity Total as CaCO3
Sample Matrix Spike Duplicate
161 mg/L 5.0 101
Run MANTECII_090521B 05/21/09 1640
80 120 0.1 20
Method A2540 Batch 09052 2.SLDS-TDS-W
Sample ID MBLKI_
Solids Total Dissolved TDS 180
Method Blank
ND mg/L
Run BAL-1_090520A 05/20/09 1322
Sample ID LCSI_
Solids Total Dissolved TDS 180
Laboratory Control Sample
990 mg/L 10 99
Run BAL-1_090520A 05/20/09 1322
90 110
Sample ID C09050570-OO4AMS
Solids Total Dissolved TDS 180
Sample Matrix Spike
5800 mg/L 10 99
Run BAL-1_090520A 05/20/09 1449
90 110
Sample ID C09050570-OO4AMSD
Solids Total Dissolved TDS 180
Sample Matrix Spike Duplicate
5790 mg/L 10 98
Run BAL-1_090520A 05/20/09 1449
90 110 0.2 10
Sample ID C09050570-OO8AMS
Solids Total Dissolved TDS 180
Sample Matrix Spike
1990 mg/L 10 99
Run BAL-1_090520A 05/20/09 1451
90 110
Sample ID C09050570-OO8AMSD
Solids Total Dissolved TDS 180
Sample Matrix Spike Duplicate
1990 mg/L 10 99
Run BAL-1_090520A 05/20/09 1451
90 110 10
Qualifiers
RL Analyte reporting limit ND Not detected at the reporting limit
MDC Minimum detectable concentration
LALORA TORIES
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
ENERG YLASORA TORIES INC 2393 Sail CreekHithway 8260 CRC Box 3258 Caspe WV82602
Ta/I Free 888.235.0515 30Z 235 0515 Fax 30Z234 1639 casperenergyIab.com www energy/ab corn
QAQC Summary Report
Client Denison Mines USA Corp Report Date 07/04/09
Project 2nd Quarter Groundwater Work Order C09050570
Analyte Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method A4500-Cl Batch 090528-CL-TTR-W
Sample ID MBLK9-090528 Method Blank Run TITRATION.ft90528A 05/28/09 0752
Chloride ND mg/L 0.4
Sample ID C09050558-OOICMS Sample Matrix Spike Run TITRATION_090528A 05/28/09 0920
Chloride 47.7 mg/L 1.0 102 90 110
Sample ID C09050558-OOICMSD Sample Matrix Spike Duplicate Run TITRATION 090528A 05/28/09 0920
Chloride 47.3 mg/L 1.0 101 90 110 0.7 10
Sample ID LCS35-090528 Laboratory Control Sample Run TITRATION_090528A 05/28/09 0921
Chloride 3500 mg/L 1.0 99 90 110
Sample ID C09050570-OO8AMS Sample Matrix Spike Run TITRATION 090528A 05/28/09 0938
Chloride 35.0 mg/L 1.0 102 90 110
Sample ID C09050570-OO8AMSD Sample Matrix Spike Duplicate Run TITRATION_090528A 05/28/09 0938
Chloride 35.7 mg/L 1.0 101 90 110 10
Method A4500-Cl Batch 090609-CL-TTR-W
Sample ID MBLK9-090609 Method Blank Run TITRATION_090609A 06/09/09 1117
Chloride ND mg/L 0.4
Sample ID C09050570-OOSA Sample Matrix Spike Run TITRATION_090609A 06/09/09 1248
Chloride 138 mg/L 1.0 102 90 110
Sample ID C09050570-005A Sample Matrix Spike Duplicate Run TITRATION_090609A 06/09/09 1248
Chloride 135 mg/L 1.0 100 90 110 1.7 10
Sample ID LCS35-090609 Laboratory Control Sample Run TITRATION_090609A 06/09/09 1341
Chloride 3530 mg/L 1.0 100 90 110
Method A4500-Cl Batch 09061 0-CL-TTR-W
Sample ID MBLK9-090610 Method Blank Run TITRATION_090610A 06/10/09 0924
Chloride ND mg/L 0.4
Sample ID C09050570-OO6AMS Sample Matrix Spike Run TITRATION 090610A 06/10/09 1030
Chloride 74.4 mg/L 1.0 102 90 110
Sample ID C09050570-OO6AMS Sample Matrix Spike Duplicate Run TITRATION_090610A 06/10/09 1033
Chloride 75.1 mg/L 1.0 104 90 110 10
Sample ID LCS35-090610 Laboratory Control Sample Run TITRATION 90610A 06/10/09 1131
Chloride 3520 mg/L 1.0 99 90 110
ND Not detected at the reporting limit
July 14 2009
ANALYTICAL SUMMARY REPORT
Denison Mines USA Corp
6425 Hwy 191
Bland ing UT 84511
Energy Laborato ries Inc received the fo llowing 12 samples for Denison Mm es USA Co rp on 5/15/2009 for analysis
Sample ID Client Sample ID Collect Date Receive Date Matrix Test
C09050510-001 MW 20 05/14/09 0917 05/15/09 Aqueous Metals by ICP/ICPMS Dissolved
Alkalinity
QA Calculations
Chloride
Fluoride
Nitrogen Ammonia
Nitrogen Nitrate Nitrite
C0905051 0-002 MW 22
C09050510-003 MW 25
05/14/09 0832 05/15/09 Aqueous
05/13/09 1732 05/15/09 Aqueous Same As Above
C0905051 0-004 MW 28 05/12/09 1447 05/15/09
05/13/09 0758 05/15/09
Aqueous Same As Above
C0905051 0-005 MW 29 Aqueous Same As Above
C09050510-006 MW 30 05/13/09 1017 05/15/09 Aqueous Same As Above
C09050510-007 MW 31 05/13/09 1237 05/15/09 Aqueous Same As Above
C0905051 0-008 MW 32 05/13/09 1502 05/15/09 Aqueous Same As Above
C09050510-009 MW 65 05/13/09 1502 05/15/09 Aqueous Same As Above
C09050510-010 WS 509 05/13/09 1300 05/15/09 Aqueous Same As Above
C09050510-011 Trip Blank 05/14/09 0917 05/15/09 Aqueous 5W8260B VOCs Standard List
C09050510-012 Temp Blank 05/14/09 0000 05/15/09 Aqueous Temperature
As appropriate any exceptions or problems with the analyses are noted in the Laboratory Analytical Report the
QA/QC Summary Report or the Case Narrative
If you have any questions regarding these tests results please call
Report Approved By ul.EcL
Stephanie Waidrop
Reporting Supervisor
EIERGY
LABORATORIES
ENERGYLI4BORA TORIES INc 2393 Sail Creek HIbway/8260O RC Box 3258 caspe WY82602
Toil Free 888.235.0515 307235.0515 Fa 307234.1639 casperenergy/ab.com wwwenerqylab.com
Workorder No C09050510 Quote ID C1640 POC Wells Monthly Groundwater Sampling
Project Name 2nd Quarter Semi-Annual Groundwater
pH
Gross Alpha minus Rn222 and Uranium
Solids Total Dissolved
Sulfate
SW8260B VOCs Standard List
Same As Above
Method A2320
Sample ID MBLK
Alkalinity Total as CaCO3
Carbonate as C03
Bicarbonate as HCO3
Sample ID LCSI
Alkalinity Total as CaCO3
Sample ID LCS
Alkalinity Total as CaCO3
Sample ID C09050510-OO8AMS
Alkalinity Total as CaCO3
Sample ID C09050510-O08AMSD
Alkalinity Total as CaCO3
Method A2540
Sample ID MBLKI_090519
Solids Total Dissolved TDS 180
Sample ID LCSI_090519
Solids Total Dissolved TDS 180
Sample ID C09050510-OIOAMS
Solids Total Dissolved TDS 180
Sample ID C09050510-OIOAMSD
Solids Total Dissolved TDS 180
Method A4500-Cl
Sample ID MBLK9-090528
Chloride
Sample ID C09050510-OOIAMS
Chloride
Sample ID C09050510-OOIAMSD
Chloride
Sample ID C09050558-O0ICMS
Chloride
Sample ID C09050558-OOICMSD
Chloride
Sample ID LCS35-090528
Chloride
mg/L
ND mg/L
mg/L
Laboratory Control Sample
205 mg/L
Laboratory Control Sample
53.6 mg/L
Sample Matrix Spike
470 mg/L
Sample Matrix Spike Duplicate
474 mg/L
Method Blank
ND mg/L
Sample Matrix Spike
420 mg/L
Sample Matrix Spike Duplicate
413 mg/L
Sample Matrix Spike
47.7 mg/L
Sample Matrix Spike Duplicate
47.3 mg/L
Laboratory Control Sample
3500 mg/L
Run TITRATIONJ39O528A
0.4
Run TITRATION_090528A
1.0 102 90 110
Run TITRATIONO9O528A
1.0 100 90 110
Run TITRATION_090528A
1.0 102 90 110
Run TITRATION 090528A
1.0 101 90 110
Run TITRATION_090528A
1.0 99 90 110
RL Analyte reporting limit
LABORA TORIES
ENERGYLABORA TORIES INC -2393 Sail CreekHIt way 82801 RU Box 3258 0aspec WV82602
Toll Free 888.235 0515 307.235.0515 Fax [phone] casperenergy/aLx corn wwwenergy/ab.corn
QA/QC Summary Report
Client Denison Mines USA Corp
Project 2nd Quarter Semi-Annual Groundwater
Analyte Count Result Units
Method Blank
Report Date 07/14/09
Work Order C0905051
RL %REC Low Limit High Limit RPD RPDLimit Qual
0.2
5.0
5.0
5.0
5.0
Method Blank
ND mg/L
Run BAL-1_090519B
Laboratory Control Sample
1000 mg/L 10 100
Run BAL-1_090519B
90 110
Sample Matrix Spike
2660 mg/L 10 104
Run BAL-1_090519B
90 110
Sample Matrix Spike Duplicate
2640 mg/L 10 103
Run BAL-1_090519B
90 110 0.7
Batch R118490
Run MANTECHO9O521B 05/21/09 1556
Run MANTECH_090521 05/21/09 1611
101 90 110
Run MANTECH_090521B 05/21/09 1618
102 90 110
Run MANTECH 090521 05/21/09 1816
101 80 120
Run MANTECH_090521B 05/21/09 1823
103 80 120 0.7 20
Batch 09051 9_1_SLDS-TDS-W
05/19/09 08.55
05/19/09 0856
05/19/09 0858
05/19/09 0858
10
Batch 090528-CL-TTR-W
05/28/09 0752
05/28/09 0835
05/28/09 0835
1.7 10
05/28/09 0920
05/28/09 0920
0.7 10
05/28/09 0921
Qualifiers
MDC Minimum detectable concentration
ND Not detected at the reporting limit
LASORA TORIES
ENERG YLASORA TORIES INC 2393 Sail Creek Hiqbway 82601 PC Sex 3258 Caspei WY82602
Tell Free 888.235.0515 3072350515 Fax [phone] casperllenergylab.cem wwwenergy/ab.cem
QA/QC Summary Report
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Semi-Annual Groundwater Work Order C0905051
Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method
Sample ID
Chloride
A4500-CI
MBLK9-090609 Method Blank
ND mg/L 0.4
Batch 090609-CL-TTR-W
Run TITRATION_090609A 06/09/09 1117
Sample ID
Chloride
C09050570-005A Sample Matrix Spike
138 mg/L 1.0 102
Run TITRATION_090609A 06/09/09 1248
90 110
Sample ID
Chloride
C09050570-005A Sample Matrix Spike Duplicate
135 mg/L 1.0 100
Run TITRATION_090609A 06/09/09 1248
90 110 1.7 10
Sample ID
Chloride
LC535-090609 Laboratory Control Sample
3530 mg/L 1.0 100
Run TITRATION_090609A 06/09/09 1341
90 110
Method
Sample ID
Fluoride
A4500-F
MBLK-1 Method Blank
ND mg/L 0.05
Batch R118325
Run MANTECH_090516A 05/18/09 1517
Sample ID
Fluoride
LCS-1 Laboratory Control Sample
0.960 mg/L 0.10 96
Run MANTECH_090518A 05/18/09 1519
90 110
Sample ID
Fluoride
C09050485-OI7AMS Sample Matrix Spike
1.61 mg/L 0.10 97
Run MANTECH_090518A 05/18/09 2103
80 120
Sample ID
Fluoride
C09050485-OI7AMSD Sample Matrix Spike Duplicate
1.64 mg/L 0.10 100
Run MANTECH_090518A 05/18/09 2105
80 120 1.8 10
Sample ID
Fluoride
C09050510-OO7AMS Sample Matrix Spike
1.86 mg/L 0.10 96
Run MANTECH_090518A 05/18/09 2147
80 120
Sample ID
Fluoride
C09050510-OO7AMSD Sample Matrix Spike Duplicate
1.86 mg/L 0.10 96
Run MANTECH_090518A 05/18/09 2150
80 120 10
Method
Sample ID
pH
A4500-H
ICVI_090518_2 Initial Calibration Verification Standard
6.97 eu 0.010 102
Analytical Run 0R10N555A_090518B
05/18/09 1244
98 102
Method
Sample ID
pH
A4500-H
C09050510-OO5ADUP Sample Duplicate
7.07 s.u 0.010
Batch 09051 8_2_PH-W_555A-2
Run 0R10N555A_090518B 05/18/09 1332
0.3 10
Method
Sample ID
A4500-H
C09050510-OIOADUP Sample Duplicate
Batch 09051 8_3_PH-W_555A-2
Run 0R10N555A_0905188 05118/09 1354
pH 7.78 s.u 0.010 0.3 10
Qualifiers
RL Analyte reporting limit ND Not detected at the reporting limit
MDC Minimum detectable concentration
Method A4500-NH3
Sample ID MBLK-i
Nitrogen Ammonia as
Sample ID LCS-2
Nitrogen Ammonia as
Sample ID C09050510-O04DMS
Nitrogen Ammonia as
Sample ID C09050510-OO4DMSD
Nitrogen Ammonia as
Sample ID C09050510-OIODMS
Nitrogen Ammonia as
Sample ID C09050510-OIODMSD
Nitrogen Ammonia as
Method A4500-S04
Sample ID LCS-1_090519
Sulfate
Sample ID MBLK-1_090519
Sulfate
Sample ID C09050510-OO3AMS
Sulfate
Sample ID C09050510-0O3AMSD
Sulfate
Sample ID C09050510-0IOAMS
Sulfate
Sample ID C09050510-O1OAMSD
Sulfate
Method A4500-S04
Sample ID LCS-1_090609
Sulfate
Sample ID MBLK-1_090609
Sulfate
Sample ID C09060570-OOIAMS
Sulfate
Sample ID C09050570-OOIAMSD
Sulfate
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
Laboratory Control Sample
4930 mg/L
Method Blank
ND mg/L
Sample Matrix Spike
3750 mg/L
Sample Matrix Spike Duplicate
3690 mg/L
Sample Matrix Spike
215 mg/L
Sample Matrix Spike Duplicate
216 mg/L
Run TECHNICON_090520A
Run TECHNICON_090520A
96 80 120
Run TECHNICON_090520A
103 SO 120
Run TECHNICON_090520A
102 80 120
Run TECHNICON_090520A
102 80 120
Run TECHNICON_090520A
100 80 120
Run TURB-2_09051 9A
59 103 90 110
Run TURB-2_09051 9A
0.6
Run TURB-2_09051 9A
59 108 90 110
Run TURB-2_09051 9A
59 104 90 110
Run TURB-2_09051 9A
2.9 104 90 110
Run TURB-2_09051 9A
2.9 105 90 110
EIERGY
LASORA TORIES
ENERGYLABORA TORIES INC 2393 Sail Creek HI/mvay 82601 P0 Box 3258 Caspe WY82602
____________Toll Free 888.235 0515 307235.0515 Fax [phone] casperOenergy/ah corn www energy/a/i corn
QA/QC Summary Report
Client Denison Mines USA Corp
Project 2nd Quarter Semi-Annual Groundwater
Analyte Count Result Units
Report Date 07/14/09
Work Order C09050510
RL %REC Low Limit High Limit RPD RPDLimit Qual
Method Blank
0.04 mg/L
Laboratory Control Sample
19.2 mg/L
Sample Matrix Spike
2.19 mg/L
Sample Matrix Spike Duplicate
2.17 mg/L
Sample Matrix Spike
2.10 mg/L
Sample Matrix Spike Duplicate
2.07 mg/L
0.02
0.20
0.050
0.050
0.050
0.050
Batch R118431
05/20/09 1246
05/20/09 1250
05/20/09 1302
05/20/09 1304
0.9 20
05/20/09 1332
05/20/09 1334
1.4 20
Batch 090519_i _S04-TURB-W
05/19/09 1105
05/19/09 ii05
05/i 9/09 1531
05/i 9/09 1532
i.9 10
05/19/09 1550
05/19/09 1551
0.5 10
Batch 090609_i_S04-TURB-W
06/09/09 1229
06/09/09 1230
06/09/09 1257
06/09/09 1257
10
Laboratory Control Sample
5150 mg/L 59 107
Run TURB-2_090609A
90 110
Method Blank
ND mg/L 0.6
Run TURB-2_090609A
Sample Matrix Spike
1870 mg/L 30 iOi
Run TURB-2_090609A
90 110
Sample Matrix Spike Duplicate
1860 mg/L 30 100
Run TURB-2_090609A
90 110 0.6
ND Not detected at the reporting limit
ENERGYLABORA TORIES INC 2393 Sail Creek Hqhway 82601 RO Sax 3258 Caspa WY82802
Toil Free 888.235 0515 3072350515 Fax [phone] casperenergy/ab.cam www.energylab.com
QA/QC Summary Report
Report Date 07/14/09
Work Order C0905051
EIERGY
LA/3ORA TORIES
Client Denison Mines USA Corp
Project 2nd Quarter Semi-Annual Groundwater
Analyte Count Result Units
Method E200.7
Sample ID C09050510-OO8BMS ft Sample Matrix Spike
Calcium 661 mg/L
Iron 9.38 mg/L
417 mg/L
6.48 mg/L
216 mgIL
420 mg/L
Run ICP3-C_090604A
81 70 130
70 70 130
82 70 130
72 70 130
80 70 130
80 70 130
Sample ID LRB
Calcium
Iron
Magnesium
Manganese
Potassium
Sodium
Sample ID LFB
Calcium
Iron
Magnesium
Manganese
Potassium
Sodium
ft Method Blank
0.2
02
0.3
ND
ND
ND
ft Laboratory Fortified Blank
51 mg/L
5.2 mg/L
52 mg/L
5.0 mg/L
51 mg/L
52 mg/L
1.0
0.069
1.0
0.016
1.0
1.0
Run ICP3-C_090604A
74 70 130
59 70 130
77 70 130
65 70 130
77 70 130
77 70 130
Run ICP3-C_090604A
Run ICP3-C_090604A
103 85 115
105 85 115
105 85 115
101 85 115
101 85 115
103 85 115
06/04/09 1613
2.4 20
3.1 20
2.7 20
20
2.9 20
1.6 20
06/04/09 1359
ND Not detected at the reporting limit
Spike recovery outside of advisory limits
Magnesium
Manganese
Potassium
Sodium
RL %REC Low Limit High Limit RPD RPDLimit Qual
1.0
0.069
1.0
0.016
1.0
1.0
Batch R119133
06104/09 1608
Sample ID C09050510-OO8BMSD ft Sample Matrix Spike Duplicate
Calcium 645 mg/L
Iron 9.09 mg/L
Magnesium 406 mg/L
Manganese 6.29 mgIL
Potassium 210 mg/L
Sodium 413 mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
0.2
01
0.2
0.003
0.03
0.1
0.50
0.030
0.50
0.010
0.50
0.50
06/04/09 1405
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
QA/QC Summary Report
Analyte
Method E200.7
Sample ID LRB
Calcium
Magnesium
Potassium
Sodium
Sample ID LEB
Calcium
Magnesium
Potassium
Sodium
0.3 mg/L
0.3 mg/L
ND mg/L
ND mg/L
Laboratory Fortified Blank
54.8 mg/L
55.0 mg/L
56.2 mg/L
57.3 mg/L
0.2
0.2
0.03
0.1
Run ICP3-C_090609A
109 85 115
110 85 115
112 85 115
115 85 115
Sample ID C09050510-OO2BMS
Calcium
Magnesium
Potassium
Sodium
Sample Matrix Spike
842 mgIL
1400 mgfL
457 mg/L
690 mg/L
Run ICP3-C_090609A
2.0 81 70 130
1.9 79 70 130
1.0 85 70 130
1.1 65 70 130
06/09/09 1508
Sample ID C09050510-OO2BMSD Sample Matrix Spike Duplicate
Calcium 801 mg/L
Magnesium 1350 mg/L
Potassium 425 mg/L
Sodium 654 mg/L
Run ICP3-C_090609A
2.0 72 70 130
1.9 69 70 130
1.0 79 70 130
1.1 78 70 130
06/09/09 1513
5.1 20
3.9 20
7.2 20
5.3 20
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
ND Not detected at the reporting limit
Spike recovery outside of advisory limits
EIERGY
LABORATORIES
ENERGVLABORA TORIES INC 2393 Sail Creek Hiqbway 82601 P0 Box 3258 CaspeI WY82602
To//Free 888.235.0515 307235.0515 Fax [phone] casperSenergy/ali corn www.energylab.com
Client Denison Mines USA Corp
Project 2nd Quarter Semi-Annual Groundwater
Count Result Units RL %REC Low Limit High Limit RPD RPDLImIt Qual
Method Blank
Report Date 07/14/09
Work Order C09050510
Run ICP3-C_090609A
Batch R119344
06/09/09 1433
06/09/09 1439
0.50
0.50
0.50
0.50
ENERGYLABORA TORIES INC 2393 Salt CreekHbway 82601 RU Box 3258 caspec WV8260217TollFree888.230515 307235 0515 Fax [phone] casperenergylab.coin www.energylab.com
LASORA TORIES
QA/QC Summary Report
Client Denison Mines USA Corp Report Date 07114/09
Project 2nd Quarter Semi-Annual Groundwater Work Order C09050510
Sample ID C09050510-OO8BMS4 jj Sample Matrix Spike
Arsenic 0.0499 mg/L
Beryllium 0.0405 mgIL
Cadmium 0.0487 mg/L
Chromium 0.0453 mgIL
Cobalt 0.0892 mg/L
Copper 0.0496 mg/L
Run ICPMS2-C_090518A 05/18/09 1144
05/18/09 1151
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit QI
Method E200.8 Batch Ri 18331
Ji Method Blank
ND
ND
ND
0.00010
ND
0.00010
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0006
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
Sample ID LRB
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Thallium
Tin
Uranium
Vanadium
Zinc
Sample ID LFB
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Thallium
Tin
Uranium
Vanadium
Zinc
0.0003
6E-05
6E-05
8E-05
0.00010
4E-05
2E-05
SE-OS
4E-05
4E-OS
9E-05
0.00
3E-O5
0.0001
8E-O6
9E-O5
SE-OS
0.0010
0.0010
0.0010
0.0010
0.0010
0.0010
0.0010
0.0010
0.00 10
0.00 10
0.0010
0.0014
0.0010
0.0010
0.00030
0.0010
0.0010
0.0010
0.0 10
0.010
0.00 10
0.010
0.0 10
jj Laboratory Fortified Blank
0.0483 mg/L
0.0479 mg/L
0.0481 mg/L
0.0483 mg/L
0.0484 mg/L
0.0486 mg/L
0.0487 mg/L
0.0480 mg/L
0.00492 mg/L
0.0482 mg/L
0.0487 mg/L
0.0481 mg/L
0.0477 mg/L
0.0478 mgIL
0.0473 mg/L
0.0483 mg/L
0.0498 mg/L
Run ICPMS2-C_090518A
97 85 115
96 85 115
96 85 115
96 85 115
97 85 115
97 85 115
97 85 115
96 85 115
98 85 115
96 85 115
97 85 115
96 85 115
95 85 115
96 85 115
95 85 115
97 85 115
98 85 115
Run ICPMS2-C_O9051 8A
97 70 130
81 70 130
91 70 130
90 70 130
86 70 130
85 70 130
05/18/09 1353
ND Not detected at the reporting limit
ENERGYLASORA TORIES INC 2393 Sail Creek Hiqhway 82601 -P0 Sax 3258-Caspe WY82.60217TallFree8832350515307235.0515-Fax [phone] casperenergylab.cam www.energylab.cOm
LARORA TORIES
QAIQC Summary Report
Analyte Count Result Units
Method E200.8
Sample ID C09050510-OOBBMS4 fl Sample Matrix Spike
Lead 0.0486 mg/L
Manganese 4.98 mg/L
Mercury 0.00443 mg/L
Molybdenum 0.0593 mg/L
Nickel 0.0990 mg/L
Selenium 0.0522 mg/L
Thallium 0.0476 mg/L
Tin 0.0365 mg/L
0.0520 mg/L
0.0477 mg/L
0.170 mg/L
Sample ID C09050510-OO8BMSD ii Sample Matrix Spike Duplicate
Arsenic 0.0504 mg/L
Beryllium 0.0402 mg/L
Cadmium 0.0493 mg/L
Chromium 0.0463 mg/L
Cobalt 0.0913 mg/L
Copper 0.0499 mg/L
Lead 0.0498 mg/L
Manganese 5.07 mg/L
Mercury 0.00468 mg/L
Molybdenum 0.0601 mg/L
Nickel 0.0994 mg/L
Selenium 0.0514 mg/L
Thallium 0.0487 mg/L
Tin 0.0383 mg/L
Uranium 0.0529 mg/L
Vanadium 0.0487 mg/L
Zinc 0.173 mg/L
Run ICPMS2-C_09051 BA
97 70 130
70 130
89 70 130
98 70 130
85 70 130
100 70 130
95 70 130
73 70 130
99 70 130
95 70 130
82 70 130
Run ICPMS2-C_09051 8A 05/18/09 1359
98 70 130 20
80 70 130 0.7 20
93 70 130 1.1 20
92 70 130 2.1 20
90 70 130 2.2 20
85 70 130 0.5 20
99 70 130 2.4 20
70 130 1.7 20
94 70 130 5.4 20
100 70 130 1.3 20
86 70 130 0.4 20
99 70 130 1.5 20
97 70 130 2.2 20
77 70 130 4.8 20
101 70 130 1.7 20
97 70 130 2.2 20
88 70 130 1.7 20
Qualifiers
RL Analyte reporting limit The analyte level was greater than four times the spike level In
accordance with the method recovery is not calculated
MDC Minimum detectable concentration
Client Denison Mines USA Corp
Project 2nd Quarter Semi-Annual Groundwater
Report Date 07/14/09
Work Order C09050510
RL %REC Low Limit High Limit RPD RPDLimit QuaI
Batch R118331
05/18/09 1353
Uranium
Vanadium
Zinc
0.040
0.010
0.0010
0.0010
0.050
0.0010
0.0010
0.0010
0.00030
0.0010
0.010
0.0010
0.010
0.010
0.0010
0.0 10
0.0 10
0.040
0.010
0.0010
0.0010
0.050
0.0010
0.0010
0.0010
0.00030
0.0010
0.010
ND Not detected at the reporting limit
fl ENERG VLASORA TORIES INC P2393 Sail Creek Hiq/iway 82601 P0 Box 3258 Casper WY82602
Toil Flee 888.235 0515 307235.0515 Fax [phone] casperenergy/ah corn www.energylab.com
LABORA TORIES
QA/QC Summary Report
Method Blank
ND
ND
RPD RPDLimit Qufl
Batoh R118718
05/27/09 1536
Sample ID LFB
Manganese
Silver
Laboratory Fortified Blank
0.0502 mg/L
0.0198 mg/L
Run ICPMS2-C_090527A
0.0010 100 85 115
0.0010 99 85 115
05/27/09 1554
Sample ID C09050510-OO8BMS4
Manganese
Silver
Method E353.2
Sample ID MBLK-1
Nitrogen NitrateNitrite as
Sample ID LCS-2
Nitrogen NitrateNitrite as
Sample Matrix Spike
5.31 mg/L
0.000450 mg/L
Sample Matrix Spike Duplicate
5.27 mg/L
0.000646 mg/L
Method Blank
0.07 mg/L
Laboratory Control Sample
2.60 mg/L
0.03
Run ICPMS2-C090527A
70 130
70 130
Run ICPMS2-C_090527A
70 130
70 130
Run TECHNICON_090522A
Run TECHNICON_090522A
0.10 100 90 110
05/27/09 1727
0.6 20
20
Sample ID C09050641-OO3CMS
Nitrogen NitrateNitrite as
Sample Matrix Spike
3.95 mg/L
Run TECHNICON_090522A
0.10 126 90 110
05/22109 1342
Sample ID C09050641-OO3CMSD
Nitrogen NitrateNitrite as
Sample Matrix Spike Duplicate
3.95 mg/L
Run TECHNICON_090522A
0.10 126 90 110
05/22/09 1344
10
Qualifiers
RL Analyte reporting limit
ND Not detected at the reporting limit
Spike recovery outside of advisory limits
The analyte level was greater than four times the spike level In
accordance with the method recovery is not calculated
MDC Minimum detectable concentration
Client Denison Mines USA Corp
Project 2nd Quarter Semi-Annual Groundwater
Analyte
Method E200.8
Sample ID LRB
Manganese
Silver
Count Result Units
Report Date 07/14/09
Work Order C09050510
RL %REC Low Limit High Limit
mg/L
mg/L
SE-OS
2E-05
Run ICPMS2-C_090527A
Sample ID C09050510-OO8BMSD
Manganese
Silver
0.010
0.0 10
0.010
0.010
05/27/09 1721
Method E200.8 Batch R120545
Sample ID
Iron
LFB Laboratory Fortified Blank
1.29 mg/L 0.0010 103
Run ICPMS4-C_090707A
85 115
07/07/09 1200
Sample ID
Iron
LRB Method Blank
ND mg/L 0.0006
Run ICPMS4-C_090707A 07/07/09 1213
Sample ID
Iron
C09050941-OO3BMS4 Sample Matrix Spike
6.12 mg/L 0.030 98
Run ICPMS4-C_090707A
70 130
07/07/09 1335
Sample ID
Iron
C09050941-OO3BMSD Sample Matrix Spike Duplicate
7.02 mg/L 0.030 112
Run ICPMS4-C_090707A 07/07/09 1341
70 130 14 20
Batch R118561
05/22/09 1242
05/22/09 1244
ENERGYLABORA TORIES INC P2393 Sail Creek Hhway 82601 RO Box 3256 Caspe.c WY82602
Toil Free 865235 0515 307235.0515 Fax [phone] casperenergy/ab corn wwwenergy/ab.corn
LABORATORIES
QA/QC Summary Report
Sample ID MB-GA-0238
Gross Alpha minus Rn
Gross Alpha minus Rn Precision
Gross Alpha minus Rn MDC
Method Blank
-0.02
0.3
0.5
RPD RPDLimit Qual
Run BERTHOLD 770-2_090529A 06/02/09 0733
Sample ID LCS-GA-0238
Gross Alpha minus Rn
Laboratory Control Sample
26.4pCi/L
Run BERTI-IOLD 770-2_090529A
100 70 130
06/02/09 0733
Sample ID C09050610-OOICMS
Gross Alpha minus Rn
Sample Matrix Spike
24.4pCi/L
Run BERTHOLD 770-2_090529A
91 70 130
06/02/09 0733
Sample ID C09050510-OOICMSD
Gross Alpha minus Rn
Sample Matrix Spike Duplicate
23.7pCi/L
Run BERTHOLD 770-2_090529A
88 70 130 3.2
06/02/09 0733
24.7
Client Denison Mines USA Corp
Project 2nd Quarter Semi-Annual Groundwater
Analyte Count Result Units
Report Date 07/14/09
Work Order C0905051
RL %REC Low Limit High Limit
Method E353.2 Batch R118815
Sample ID MBLK-1
Nitrogen Nitratei-Nitrite as
Method Blank
ND mg/L 0.03
Run TECHNICON_090529A 05/29/09 1041
Sample ID LCS-2
Nitrogen NitrateNitrite as
Laboratory Control Sample
2.58 mg/L 0.10 103
Run TECHNICON_090529A
90 110
05/29/09 1107
Sample ID C09050510-OO9DMS
Nitrogen NitrateNitrite as
Sample Matrix Spike
2.07 mg/L 0.10 103
Run TECHNICON_090529A
90 110
05/29/09 1110
Sample ID C09050510-OO9DMSD
Nitrogen NitrateNitrite as
Sample Matrix Spike Duplicate
1.98 mg/L 0.10 99
Run TECHNICON_090529A
90 110 4.4
05/29/09 1112
10
Method E900.1 Batch GA-0238
pCi/L
pCi/L
pCi/L
Qualifiers
RL Anal yte reporting limit
MDC Minimum detectable concentration
ND Not detected at the reporting limit
Not detected at minimum detectable concentration
QAIQC Summary Report
SW8260B
051809_LCS_3
Analyte
Method
Sample ID
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chioromethane
mp-Xylenes
Methyl ethyl ketone
Methylene chloride
Naphthalene
o-Xylene
Toluene
Xylenes Total
Surr Dibromofluoromethane
Surr p-Bromofluorobenzene
Surr Toluene-d8
Surr 2-Dichlorobenzene-d4
Count Result Units
Laboratory Control Sample
90 ug/L
8.7 ug/L
8.6 ug/L
8.6 ug/L
8.1 ug/L
18 ug/L
88 ug/L
8.1 ug/L
8.8 ug/L
9.0 ug/L
8.8 ug/L
27 ug/L
RL %REC Low Limit High Limit
Run SATURNCA_09051 SB
20 90 70 130
1.0 87 70 130
1.0 86 70 130
1.0 86 70 130
1.0 81 70 130
1.0 90 70 130
20 88 70 130
1.0 81 70 130
1.0 88 70 130
1.0 90 70 130
1.0 88 70 130
1.0 90 70 130
1.0 88 70 130
1.0 100 80 130
1.0 94 80 120
1.0 98 80 120
RPD RPDLimit Qual
Batch R118336
05/18/09 1136
Sample ID 051809_MBLK_6
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
mp-Xylenes
Methyl ethyl ketone
Methylene chloride
Naphthalene
o-Xylene
Toluene
Xylenes Total
Surr Dibromofluoromethane
Surr p-Bromofluorobenzene
Surr Toluene-d8
Sum 2-Dichlorobenzene-d4
Sample ID C09050510-OIOEMS Sample Matrix Spike
Acetone 920 ug/L
Benzene 100 ug/L
Carbon tetrachloride 100 ug/L
Chloroform 100 ug/L
Chloromethane 91 ug/L
mp-Xylenes 200 ug/L
Methyl ethyl ketone 930 ug/L
Methylene chloride 91 ug/L
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
Run SATURNCA_09051 SB
92 70 130
100 70 130
102 70 130
102 70 130
91 70 130
102 70 130
93 70 130
91 70 130
EIERGY
LASORA TORIES
ENERGYLABORA TORIES INc 2393 Saft Creek Hhway 82601 RO Box 3258 Caspei WY82602
Toll Free 888.235 0515 307235.0515 Fax [phone] casperftenergjklab.com wwwenergy/ab.com
Client Denison Mines USA Corp
Project 2nd Quarter Semi-Annual Groundwater
Report Date 07/14/09
Work Order C0905051
1Q Method Blank
ND ug/L
ND ug/L
ND ug/L
ND ug/L
ND ug/L
ND ug/L
ND ug/L
ND ug/L
ND ug/L
ND ug/L
ND ug/L
ND ug/L
Run SATURNCA_090518B 05/18/09 1328
20
1.0
1.0
1.0
1.0
1.0
20
1.0
1.0
1.0
1.0
1.0
1.0 98 70 130
1.0 106 80 120
1.0 95 80 120
1.0 104 80 120
05/18/09 1922
200
10
10
10
10
10
200
10
ND Not detected at the reporting limit
ENERGYLABORA TORIES INC P2393 Sail Creek Hihway 82601 P0 Box 3258W Caspe PVV82602
Toil Free 888.235.0515 307 235 0515 Fax [phone] [e-mail] wwwenergy/ab.cofti
LA/bRA TORIES
QA/QC Summary Report
Client Denison Mines USA Corp Report Date 07/14/09
Project 2nd Quarter Semi-Annual Groundwater Work Order C0905051
so.naiyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method SW8260B Batch R118336
Sample ID C09050510-OIOEMS Sample Matrix Spike Run SATURNCA_090518B 05/18/09 1922
Naphthalene 91 ug/L 10 91 70 130
o-Xylene 100 ug/L 10 104 70 130
Toluene 100 ug/L 10 100 70 130
Xylenes Total 310 ug/L 10 102 70 130
Surr Dibromouluoromethane 10 94 70 130
Surr p-Bromofluorobenzene 10 102 80 120
Surr Toluene-d8 10 96 80 120
Sum 2-Dichlorobenzene-d4 10 97 80 120
Sample ID C09050510-OIOEMSD Sample Matrix Spike Duplicate Run SATURNCA_090518B 05/18/09 1959
Acetone 960 ug/L 200 96 70 130
Benzene 110 ug/L 10 110 70 130 9.5 20
Carbon tetrachloride 110 ug/L 10 111 70 130 20
Chloroform 110 ug/L 10 108 70 130 6.5 20
Chloromethane 100 ug/L 10 101 70 130 10 20
mp-Xylenes 210 ug/L 10 105 70 130 3.3 20
Methyl ethyl ketone 890 ug/L 200 89 70 130 20
Methylene chloride 99 ug/L 10 99 70 130 8.8 20
Naphthalene 100 ug/L 10 103 70 130 12 20
o-Xylene 100 ug/L 10 100 70 130 3.5 20
Toluene 110 ug/L 10 109 70 130 8.8 20
Xylenes Total 310 ug/L 10 103 70 130 20
Surr Dibromofluoromethane 10 102 70 130 10
Surr p-Bromofluorobenzene 10 104 80 120 10
SurrToluene-d8 10 97 80 120 10
Surr 12-Dichlorobenzene-d4 10 101 80 120 10
Qualifiers
RL Analyte reporting limit ND Not detected at the reporting limit
MDC Minimum detectable concentration
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Energy Laboratories Inc
VVo rkorde Receipt Cliecki ist
Denison Mines USA Corp C09050510
Login completed by Kimberly Humiston Date and Time Received 5/15/2009 920 AM
Reviewed by Received by al
Reviewed Date Carrier name Next Day Air
Shipping container/cooler in good condition Yes No Not Present fl
custody seals intact on shipping container/cooler Yes No Not Present
custody seals intact on sample bottles Yes No Not Present
chain of custody present Yes No
chain of custody signed when relinquished and received Yes No
chain of custody agrees with sample labels Yes No
Samples in proper container/bottle Yes No
Sample containers intact Yes No
Sufficient sample volume for indicated test Yes No
All samples received within holding time Yes No
container/Temp Blank temperature 3C On Ice
Water VOA vials have zero headspace Yes No No VOA vials submitted
Water p1-I acceptable upon receipt Yes No Not Applicable
contact and corrective Action comments
None
ENERG VLA9ORA TORIES INC -2393 Sail Creek Hibway 82601 P0 Box 3258-Caspec WY82602
Toil Free 888.2350515 307235.0515 Fax [phone] -caspereaergy/ah corn www.energylab.com
CLIENT Denison Mines USA Corp Date 14-Jul-09
Project 2nd Quarter Semi-Annual Groundwater CASE NARRATIVE
Sample Delivery Group C09050510
ORIGINAL SAMPLE SUBMITTALS
All original sample submittals have been returned with the data package
SAMPLE TEMPERATURE COMPLIANCE 4C 2C
Temperature of samples received may not be considered properly preserved by accepted standards Samples that are hand
delivered immediately after collection shall be considered acceptable if there is evidence that the chilling process has begun
GROSS ALPHA ANALYSIS
Method 900.0 for gross alpha and gross beta is intended as drinking water method for low TDS waters Data provided by
this method for non potable waters should be viewed as inconsistent
RADON IN AIR ANALYSIS
The desired exposure time is 48 hours days The time delay in retuming the canister to the laboratory for processing
should be as short as possible to avoid excessive decay Maximum recommended delay between end of exposure to
beginning of counting should not exceed days
SOILJSOLID SAMPLES
All samples reported on an as received basis unless otherwise indicated
ATRAZINE SIMAZINE AND PCB ANALYSIS USING EPA 505
Data for Atrazine and Simazine are reported from EPA 525.2 not from EPA 505 Data reported by ELI using EPA method
505 reflects the results for seven individual Aroclors When the results for all seven are ND not detected the sample
meets EPA compliance criteria for PCB monitoring
SUBCONTRACTING ANALYSIS
Subcontracting of sample analyses to an outside laboratory may be required If so ENERGY LABORATORIES will utilize its
branch laboratories or qualified contract laboratories for this service Any such laboratories will be indicated within the
Laboratory Analytical Report
BRANCH LABORATORY LOCATIONS
eli-b Energy Laboratories Inc Billings MT
eli-g Energy Laboratories Inc Gillette WY
eli-h Energy Laboratories Inc Helena MT
eli-r Energy Laboratories Inc Rapid City SD
eli-t Energy Laboratories Inc College Station TX
CERTIFICATIONS
USEPA WY00002 Radiochemical WY00937 FL-DOH NELAC E87641 Radiochemical E871017 California 02118CA
Oregon WY20000I Utah 3072350515 Virginia 00057 Washington C1903
ISO 17025 DISCLAIMER
The results of this Analytical Report relate only to the items submitted for analysis
ENERGY LABORATORIES INC CASPERWY certifies that certain method selections contained in this report meet
requirements as set forth by the above accrediting authorities Some results requested by the client may not be covered
under these certifications All analysis data to be submitted for regulatory enforcement should be certified in the sample
state of origin Please verify ELIs certification coverage by visiting www.energylab.com
ELI appreciates the opportunity to provide you with this analytical service For additional information and services visit our
web page www.energyIab.com
THIS IS THE FINAL PAGE OF THE LABORATORY ANALYTICAL REPORT
EIERGY
LASORA TORIES
ENERO YLABORA TORIES INC 2393 Sail Creek Hq/iway 82601 P0 Box 3258 Caspei WY82602
To//Free 888.235.0615 307235.0515 Fai 307234.1639 caspeK4energy/ab.com wwwenergy/ab.comENERGY
LABORA TORIES
July 08 2009
Denison Mines USA Corp
6425 Hwy 191
Blanding UT 84511
ANALYTICAL SUMMARY REPORT
Metals by ICP/ICPMS Dissolved
Alkalinity
QA Calculations
Chloride
Fluoride
Nitrogen Ammonia
Nitrogen Nitrate Nitrite
pH
Gross Alpha minus Rn222 and Uranium
Solids Total Dissolved
Sulfate
SW8260B VOCs Standard List
Same As Above
Same As Above
As appropriate any exceptions or problems with the analyses are noted in the Laboratory Analytical Report the
QNQC Summary Report or the Case Narrative
If you have any questions regarding these tests results please call
Repo Approved By ______________________________
Steven Cariston
Technical Director
Workorder No C09060101 Quote ID C1640 POC Wells Monthly Groundwater Sampling
Project Name 2nd Quarter Groundwater Resample
Energy Laboratories Inc received the following samples for Denison Mines USA Corp on 6/2/2009 for analysis
Sample ID Client Sample ID Collect Date Receive Date Matrix Test
C09060101-001 MW 05/29/09 1037 06/02/09 Aqueous
C09060101-002 MW 17
C09060101-003 MW27
C09060101-004 MW 24
C09060101-005 Trip Blank
05/29/09 0852 06/02/09
05/29/09 1302 06/02/09
05/30/09 1000 06/02/09
05/30/09 0000 06/02/09
Aqueous
Aqueous
Aqueous
Aqueous
Same As Above
SW8260B VOCs Standard List
ENERGYLABORA TORIES INC 2393 Salt Creek H/qbway 82601 P0 Box 3258 Casper WY82602
roll Free 8892350515 3072350515 Fax [phone] caspenPenergylab.com wwwenergylab.comENERGY
LASORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 07/08/09
Project 2nd Quarter Groundwater Resample Collection Date 05/30109
Lab ID C090601 01-005 Date Received 06/02109
Client Sample ID Trip Blank Matrix Aqueous
MCLJ
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug1L 20 SW8260B 06/03109 2049 IjIr
Benzene ND ug/L 1.0 SW8260B 06/03/09 2049 jlr
Carbon tetrachioride ND ugIL 1.0 SW8260B 06/03/09 2049 /jlr
Chloroform ND ugL 1.0 SW8260B 06/03109 2049 jIr
Chioromethane ND ugL 1.0 SW82606 06/03/09 2049 IjIr
Methyl ethyl ketone ND ug/L 20 SW8260B 06103/09 2049 /jlr
Methylene chloride ND ug/L 1.0 SW8260B 06103109 2049 IjIr
Naphthalene ND ugL 1.0 SW8260B 06/03109 2049 jlr
Toluene ND ugIL 1.0 SWB26OB 06/0309 2049/jIr
Xylenes Total ND ugIL 1.0 SW8260B 06/03/09 2049 jlr
Surr Dibromofluoromethane 115 %REC 70-130 SW8260B 06/03/09 2049/jlr
Surr p-Bromofluorobenzene 105 %REC 80-1 20 SW8260B 06/03/09 2049 /jlr
Surr Toluene-d8 91.0 %REC 80-120 SW8260B 06/03/09 2049 /jlr
Surr 12-Dichlorobenzene-d4 104 %REC 80-120 SW8260B 06/03/09 2049/jlr
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater Resample
Analyte
Method A2320
Sample ID MBLK
Alkalinity Total as CaCO3
Carbonate as COS
Bicarbonate as HC03
Sample ID LCSI
Alkalinity Total as CaCO3
Sample ID LCS
Alkalinity Total as CaCO3
Sample ID C09060106-0OIAMS
Alkalinity Total as CaCO3
Sample ID C09060106-O01AMSD
Alkalinity Total as CaCO3
Method A2540
Sample ID MBLKI_
Solids Total Dissolved TDS 180
Sample ID LCSI_
Solids Total Dissolved TDS 180
Sample ID C09060108-004AM5
Solids Total Dissolved TDS 180
Sample ID C09060108-OO4AMSD
Solids Total Dissolved TDS 180
Method A4500-CI
Sample ID MBLK9-090610
Chloride
Sample ID C09050941-OO7AMS
Chloride
Sample ID C09050941-OO7AMS
Chloride
Sample ID LCS35-090610
Chloride
Sample ID C09060127-OO3AMS
Chloride
Sample ID C09060127-OO3AMS
Chloride
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
LAI3ORA TORIES
ENERGYLABORA TORIES INC 2393 Sail Creek Hlqhway 82601 P0 Box 8258 Casper WY82502
roll Free 888.235 0515 307235.0515 Fax [phone] caspeItenergy/ab.com www.energylab.com
QA/QO Summary Report
Result Units RL %REC Low Limit High Limit
Method Blank
mg/L
ND mg/L
mg/L
0.2
Run MANTECH_090603A
Laboratory Control Sample
201 mg/L 5.0 99
Run MANTECH_090603A
90 110
Laboratory Control Sample
53.7 mg/L 5.0 101
Run MANTECH_090603A
90 110
Sample Matrix Spike
137 mg/L 5.0 102
Run MANTECH_090603A
80 120
Sample Matrix Spike Duplicate
139 mg/L 5.0 103
Run MANTECI-I_090603A
80 120
Report Date 07/08/09
Work Order C09060101
RPD RPDLimit Qual
Batch R119061
06/03/09 1256
06/03/09 2015
06/03/09 2022
06/03/09 2212
06/03/09 2220
1.3 20
Batch 090603_i _SLDS-TDS-W
06/03/09 1056
06/03/09 1056
06/03/09 1059
06/03/09 1059
10
Batch 09061 0-CL-TTR-W
Run TITRATION_090610A 06/i 0/09 0924
0.4
Run TITRATION_090610A 06/10/09 1127
1.0 104 90 110
Run TITRATION_090610A 06/10/09 1129
1.0 99 90 110 4.1 10
Run TITRATION_090610A 06/10/09 1131
1.0 99 90 110
Run TITRATION_090610A 06/10/09 1253
1.0 105 90 110
Run TITRATION_090610A 06/10/09 1255
1.0 101 90 110 3.9 10
Method Blank
ND mg/L
Run BAL-1_0906030
Laboratory Control Sample
1000 mg/L 10 100
Run BAL-1_090603D
90 110
Sample Matrix Spike
4650 mg/L 10 104
Run BAL-1_090603D
90 110
Sample Matrix Spike Duplicate
4630 mg/L 10 103
Run BAL-1_090603D
90 110 0.3
Method Blank
ND mg/L
Sample Matrix Spike
438 mg/L
Sample Matrix Spike Duplicate
420 mg/L
Laboratory Control Sample
3520 mg/L
Sample Matrix Spike
37.4 mg/L
Sample Matrix Spike Duplicate
35.9 mg/L
ND Not detected at the reporting limit
Qualifiers
RL Analyte reporting limit
MDC Minimum detectable concentration
ENERGY
LA/3ORA TORIES
ENERG YLABORA TORIES INC 2393 Sail Creek Hihway 82501 PC Sex 3258W Caspe WV82602
Tell Free 888.235.0515 307235.0515 Fax [phone] caspeitenergy/ab.cem www.energylab.com
uAIQC Summary RepoJ-t
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater Resample
Report Date 07/08/09
Work Order C09060101
Analyte Result UnIts RL %REC Low Limit High Limit RPD RPDLimit Qual
Method A4500-F Batch Ri 19289
Sample ID MBLK-1 Method Blank
Fluoride ND mg/L 0.05
Run MANTECH_090608A 06108/09 1501
Sample ID LCS-1 Laboratory Control Sample
Fluoride 1.02 mg/L 0.10 102
Run MANTECH_090608A 06/08/09 1504
90 110
Sample ID C09060109-OOIAMS Sample Matrix Spike
Fluoride 1.72 mg/L 0.10 100
Run MANTECH_090608A 06/08/09 1523
80 120
Sample ID C09060109-OOIAMSD Sample Matrix Spike Duplicate
Fluoride 1.72 mg/L 0.10 100
Run MANTECH_090608A 06/08/09 1526
80 120 10
Method A4500-H Analytical Run 0R10N555A_090602D
Sample ID ICVI_090602_3 Initial Calibration Verification Standard
pH 6.99 s.u 0.010 102
06/02/09 1624
98 102
Method A4500-H Batch 090602_3.PH-W_555A-2
Sample ID C09060101-OO2ADUP Sample Duplicate
pH 6.69 s.u 0.010
Run 0R10N555A_090602D 06/02/09 1651
7.3 10
Method A4500-NH3 Batch Ri 19833
Sample ID MBLK-1 Method Blank
Nitrogen Ammonia as ND mg/L 0.02
Run TECHNICON_090619A 06/19/09 1317
Sample ID LCS-2 Laboratory Control Sample
Nitro9en Ammonia as 19.9 mg/L 0.20 99
Run TECHNICON_090619A 06/19/09 1320
80 120
Sample ID C09060101-OO4DMS Sample Matrix Spike
Nitrogen Ammonia as 2.25 mg/L 0.050 96
Run TECHNICON_090619A 06/19/09 1334
80 120
Sample ID C09060101-OO4DMSD Sample Matrix Spike Duplicate
Nitrogen Ammonia as 2.18 mg/L 0.050 93
Run TECHNICON_090619A 06/19/09 1336
80 120 3.2 20
Method A4500-504 Batch 090605_1_504-TURB-W
Sample ID MBLK-1_090605 Method Blank
Sulfate ND mg/L 0.6
Run TIJRB-2_090605A 06/05/09 1323
Sample ID LCS-1_090605 Laboratory Control Sample
Sulfate 5190 mg/L 59 108
Run TURB-2_090605A 06/05/09 1324
90 110
Sample ID C09050909-OOIAMS Sample Matrix Spike
Sulfate 50.2 mg/L 1.0 101
Run TURB-2_090605A 06/05/09 1329
90 110
Sample ID C09050909-OOIAM5D Sample Matrix Spike Duplicate
Sulfate 49.8 mg/L 1.0 99
Run TURB-2_090605A 06/05/09 1330
90 110 0.8 10
ND Not detected at the reporting limit
ENERGVLABORA TORIES INC 2393 Sail Creek Highway 82601 P0 Box 3258 Casper WY82602
____________Toll Free 888.235 0515 3072350515 Fax [phone] casperanergy/ab.com wwwenergy/ab.com
LAIIOIZA TORIES
UPlUU summary epon
Client Denison Mines USA Corp Report Date 07/08/09
Project 2nd Quarter Groundwater Resample Work Order C09060101
Analyte Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method E200.7 Batch R119592
Sample ID LRB Method Blank Run ICP3-C_090615A 06/15/09 1535
Calcium ND mgIL 0.2
Magnesium 0.2 mgIL 0.2
Potassium ND mg/L 0.03
Sodium ND mgIL 0.1
Sample ID LFB Laboratcry Fortified Blank Run ICP3-C_090615A 06/1 5109 1541
Calcium 50.1 mg/L 0.50 100 85 115
Magnesium 50.8 mgIL 0.50 101 85 115
Potassium 48.7 mg/L 0.50 97 85 115
Sodium 50.3 mg/L 0.50 101 85 115
Sample ID C09060109-OOIBMS Sample Matrix Spike Run ICP3-C_090615A 06/16/09 0250
Calcium 236 mg/L 1.0 87 70 130
Magnesium 231 mg/L 1.0 89 70 130
Potassium 240 mg/L 1.0 90 70 130
Sodium 615 mg/L 1.0 91 70 130
Sample ID C09060109-OOIBMSD Sample Matrix Spike Duplicate Run ICP3-C_090615A 05/16/09 0256
Calcium 221 mg/L 1.0 81 70 130 6.8 20
Magnesium 217 mg/L 1.0 84 70 130 6.4 20
Potassium 224 mgIL 1.0 83 70 130 20
Sodium 586 mglL 1.0 79 70 130 4.8 20
Sample ID LFB Laboratory Fortified Blank Run ICP3-C_090615A 06/15/09 1541
Calcium 50.1 mg/L 0.50 100 85 115
Magnesium 50.8 mg/L 0.50 102 85 115
Potassium 48.7 mgIL 0.50 97 85 115
Sodium 50.3 mg/L 0.50 100 85 115
Qualifiers
RL Analyte reporting limit ND Not detected at the reporting limit
MDC Minimum detectable concentration
EIERGv
LABORATORIES
ENERGYLABORA TORIES INC 2393 Sail Creek HIbway 82601 9O Box 3258 Caspel WV82502
Toil Free 888.235.0515 307235.0515 Fax [phone] casper6energy/ab.com wwwenergy/ab.com
QA/QU summary Report
Report Date 07/08/09
Work Order C09060101
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater Resample
Analyte Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method E200.7 Batch R119793
Sample ID MB-090618A Method Blank Run ICP2-C_090618A 06/18/09 1240
Calcium ND mg/L 0.2
Iron ND mg/L 0.005
Magnesium ND mg/L 0.09
Potassium ND mgIL 0.1
Sodium ND mgIL 0.2
Sample ID LFB-090618A Laboratory Fortified Blank Run ICP2-C_090618A 06/1 8109 1244
Calcium 50.8 mg/L 0.50 102 85 115
Iron 1.000 mg/L 0.030 100 85 115
Magnesium 52.1 mg/L 0.50 104 85 115
Potassium 46.2 mg/L 0.50 92 85 115
Sodium 49.1 mg/L 0.50 98 85 115
Sample ID C09050941-OOIBMS2 Sample Matrix Spike Run ICP2-C_090618A 06/18/09 1605
Calcium 263 mg/L 1.0 98 70 130
Iron 2.07 mg/L 0.030 102 70 130
Magnesium 160 mg/L 1.0 99 70 130
Potassium 95 mg/L 87 70 130
Sodium 267 mg/L 1.0 94 70 130
Sample ID CO9O5O94VOOIBMSD2 Sample Matrix Spike Duplicate Run ICP2-C_090618A 06/18/09 1609
Calcium 264 mg/L 1.0 99 70 130 0.5 20
Iron 2.07 mg/L 0.030 102 70 130 0.1 20
Magnesium 162 mg/L 1.0 101 70 130 1.1 20
Potassium 96.2 mg/L 1.0 88 70 130 0.9 20
Sodium 272 mg/L 1.0 99 70 130 1.8 20
Sample ID C09060141-OOIBMS2 Sample Matrix Spike Run ICP2-C_090618A 06/18/09 1705
Calcium 166 mg/L 1.0 101 70 130
Iron 2.05 mgIL 0.030 101 70 130
Magnesium 108 mg/L 1.0 102 70 130
Potassium 97.1 mg/L 1.0 93 70 130
Sodium 139 mg/L 1.0 102 70 130
Sample ID C09060141-OOIBMSD2 Sample Matrix Spike Duplicate Run ICP2-C_090618A 06/18/09 1709
Calcium 169 mg/L 1.0 104 70 130 1.7 20
Iron 2.04 mgIL 0.030 100 70 130 0.6 20
Magnesium 107 mglL 1.0 101 70 130 20
Potassium 95.1 mg/L 1.0 91 70 130 2.1 20
Sodium 138 mg/L 1.0 102 70 130 0.6 20
Sample ID LCS3-22577 Laboratory Control Sample Run ICP2-C_090618A 06/18/09 2317
Calcium 25.2 mg/L 1.0 101 85 115
Iron 2.58 mg/L 0.033 103 85 115
Magnesium 25.2 mg/L 1.0 101 85 115
Potassium 25.5 mg/L 1.0 102 85 115
Qualifiers
RL Analyte reporting limit ND Not detected at the reporting limit
MDC Minimum detectable concentration
wkiwL.ummary ucepon
Sample ID LCS3-22677
Sodium
Laboratory Control Sample
24.5 mg/L
Sample ID C09060061-OOIAMS3 Sample Matrix Spike
Calcium 63.5 mgIL
Iron 5.71 mg/L
Magnesium 34.6 mg/L
Potassium 36.0 mg/L
Sodium 543 mg/L
Run 1CP2-C_090618A
1.1 98 85 115
Run ICP2-C_090618A
104 70 130
114 70 130
105 70 130
102 70 130
70 130
1.0
0.066
1.0
1.0
2.2
Run ICP2-C_090618A
102 70 130
102 70 130
102 70 130
101 70 130
70 130
06/18/09 2342
20
5.2 20
20
0.6 20
20
Qualifiers
RL Analyte reporting limit The analyte level was greater than four times the spike level In
accordance with the method recovery is not calculated
MDC Minimum detectable concentration
EN5RGY
LABORA TORIES
LA/ERG VLABORA TORiES INC 2393 Sail Creek Hithway 8260 P0 Box 3258 Casper WV82602
Toll Free 888.235.0515 307.235.0515 Fax [phone] casperenergy/a/zcom www.energylab.com
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater Resample
Analyte Result Units RL %REC Low Limit High Limit RPD RPDLimit Quaij
Method E200.7 Batch R119T93
Report Date 07/08/09
Work Order C09060101
1.0
0.056
1.0
1.0
2.2
05/18/09 2317
06/1 8109 2338
Sample ID C09060061-OOIAMSD3 Sample Matrix Spike Duplicate
Calcium 62.9 mg/L
Iron 5.42 mg/L
Magnesium 33.9 mg/L
Potassium 35.8 mg/L
Sodium 516 mg/L
ND Not detected at the reporting limit
ENERG VLABORA TORIES INC 2393 Sail Creek Hibway 82601 .C Box 3258 Caspei WY82602
____________Toil Free 888235.0515 3072350515 Fa 307234.1639 casperilenergylatz corn www.energylab.com
LABORA TORIES
QA/Qe summary KepoUt
Client Denison Mines USA Corp Report Date 07/08/09
Project 2nd Quarter Groundwater Resample Work Order C09060101
Analyte Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method E200.8 Batch Ri 19190
Sample ID LRB Method Blank Run ICPMS2-C_090605A 06/05/09 1313
Arsenic ND mg/L 0.0003
Beryllium ND mg/L GE-OS
Cadmium ND mg/L GE-OS
Chromium ND mg/L 8E-05
Cobalt ND mg/L 0.00010
Copper ND mg/L 4E-0S
Lead ND mg/L 2E-05
Manganese ND mg/L 5E-05
Mercury ND mg/L 4E-05
Molybdenum ND mg/L 4E-O5
Nickel ND mg/L 9E-05
Selenium ND mg/L 0.001
Silver ND mg/L 2E-OS
Thallium ND mg/L 3E-05
Tin ND mg/L 0.0001
Uranium ND mg/L BE-O6
Vanadium ND mg/L 9E-OS
Zinc 0.0006 mg/L GE-OS
Sample ID LFB Laboratory Fortified Blank Run ICPMS2-C_0906O5A 05/05/09 1320
Arsenic 0.0526 mg/L 0.0010 lOS 85 115
Beryllium 0.0509 mg/L 0.0010 102 85 115
Cadmium 0.0522 mg/L 0.0010 104 85 115
Chromium 0.0504 mg/L 0.0010 101 85 115
Cobalt 0.0494 mg/L 0.0010 99 85 115
Copper 0.0499 mg/L 0.0010 100 85 115
Lead 0.0519 mg/L 0.0010 104 85 115
Manganese 0.0506 mg/L 0.0010 101 85 115
Mercury 0.00540 mg/L 0.0010 108 85 115
Molybdenum 0.0535 mg/L 0.0010 107 85 115
Nickel 0.0504 mg/L 0.0010 101 85 115
Selenium 0.0526 mg/L 0.0014 105 85 115
Silver 0.0207 mg/L 0.0010 103 85 115
Thallium 0.0531 mg/L 0.0010 106 85 115
Tin 0.0528 mg/L 0.0010 106 85 115
Uranium 0.0537 mg/L 0.00030 107 85 115
Vanadium 0.0509 mg/L 0.0010 102 85 115
Zinc 0.0541 mg/L 0.0010 107 85 115
Sample ID C09060101-004BM54 Sample Matrix Spike Run ICPMS2-C_090605A 06/05/09 1823
Arsenic 0.266 mg/L 0.0010 106 70 130
Beryllium 0.250 mg/L 0.010 100 70 130
Cadmium 0.259 mg/L 0.010 103 70 130
Chromium 0.247 mg/L 0.050 98 70 130
Cobalt 0.240 mg/L 0.010 95 70 130
Copper 0.242 mg/L 0.010 95 70 130
Qualifiers
RL Analyte reporting limit ND Not detected at the reporting limit
MDC Minimum detectable concentration
Analyte Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method 200.8
0.0010
0.010
0.010
0.050
0.010
0.010
0.050
0.010
0.0010
0.10
0.050
0.0012
0.010
0.10
0.10
0.00030
0.10
0.010
Run ICPMS2-C_090605A
106 70 130
99 70 130
104 70 130
97 70 130
94 70 130
95 70 130
104 70 130
70 130
110 70 130
110 70 130
95 70 130
105 70 130
84 70 130
103 70 130
108 70 130
112 70 130
100 70 130
93 70 130
Batch R119190
06/05/09 1829
20
0.8 20
0.4 20
1.2 20
0.6 20
0.5 20
0.6 20
0.7 20
0.7 20
0.2 20
1.6 20
1.4 20
7.5 20
1.2 20
0.6 20
1.4 20
20
0.5 20
RL Analyte reporting limit The analyte level was greater than four times the spike level In
accordance with the method recovery is not calculated
MDC Minimum detectable concentration
EIERGY
LABOR.4 TORIES
ENERGYLABORA TORIES INC 2393 Sail Creek HIbway 82601 P0 Box 3258 CaspeI WY82602
Toll Free 888.2350515 307235.0515 Fax [phone] casperenergy/ab.coni wwwenergy/ab.com
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater Resample
WAIUU summary epon
Report Date 07/08/09
Work Order C09060101
06/05/09 1823
0.050
0.010
0.0010
0.10
0.050
0.0012
0.010
0.10
0.10
0.00030
0.10
0.010
Run ICPMS2-C_090605A
104 70 130
70 130
110 70 130
110 70 130
97 70 130
106 70 130
90 70 130
104 70 130
107 70 130
114 70 130
101 70 130
94 70 130
Sample ID C09060101-OO4BMS4 Sample Matrix Spike
Lead 0.260 mg/L
Manganese 3.72 mg/L
Mercury 0.0276 mg/L
Molybdenum 0.275 mg/L
Nickel 0.258 mg/L
Selenium 0.268 mg/L
Silver 0.0901 mg/L
Thallium 0.261 mg/L
Tin 0.268 mg/L
uranium 0.285 mg/L
Vanadium 0.253 mgIL
Zinc 0.264 mg/L
Sample ID C09060101-OO4BMSD4 Sample Matrix Spike Duplicate
Arsenic 0.266 mg/L
Beryllium 0.248 mg/L
Cadmium 0.260 mgfL
Chromium 0.244 mg/L
Cobalt 0.239 mg/L
Copper 0.241 mg/L
Lead 0.259 mg/L
Manganese 3.69 mg/L
Mercury 0.0274 mg/L
Molybdenum 0.276 mg/L
Nickel 0.254 mgIL
Selenium 0.265 mgfL
Silver 0.0836 mg/L
Thallium 0.258 mg/L
Tin 0.270 mg/L
Uranium 0.281 mg/L
Vanadium 0.250 mg/L
Zinc 0.263 mgIL
Qualifiers
ND Not detected at the reporting limit
___________ENERG YLABORA TORIES INC 2393 Sail Creek Hivbway 82801 P0 Box 3258 Caspe WY82802
Toll Free 888.235.0515 307235.0515 Fax [phone] caspenWenergyfaLz corn www.energylab.comEtERGV
LAI3ORA TORIES
UAUCSummary eport
Client Denison Mines USA Corp Report Date 07/08/09
Project 2nd Quarter Groundwater Resample Work Order C09060101
Analyte Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method E200.8 Batch R119275
Sample ID LRB
Iron
Mercury
Zinc
Method Blank
ND mg/L
ND mg/L
ND mg/L
0.0006
4E-05
0.0002
Run ICPMS4-C_090608A 06/08109 1156
Sample ID LFB
Iron
Mercury
Zinc
Laboratory Fortified Blank
1.28 mgIL
0.00514 mglL
0.0543 mg/L
0.0010
0.0010
0.0010
103
103
108
Run ICPMS4-Q090608A
85 115
85 115
85 115
06/08/09 1230
Sample ID LFB
Iron
Mercury
Zinc
Laboratory Fortified Blank
1.31 mg/L
0.00502 mg/L
0.0587 mg/L
0.0010
0.0010
0.0010
105
100
117
Run ICPMS4-CjJ90608A
85 115
85 115
85 115
06/08/09 1919
Sample ID C09060158-OOIBMS4
Iron
Mercury
Zinc
Sample Matrix Spike
1.27 mg/L
0.00459 mglL
0.0757 mg/L
0.030
0.0010
0.010
97
92
90
Run ICPMS4-C_090608A
70 130
70 130
70 130
06/08/09 2128
Sample ID C09060158-OOIBMSD4
Iron
Mercury
Zinc
Sample Matrix Spike Duplicate
1.33 mg/L
0.00492 mg/L
0.0768 mg/L
0.030
0.0010
0.010
102
98
92
Run ICPMS4-C_090608A
70 130
70 130
70 130
4.4
6.9
1.4
06/08/09 2135
20
20
20
Method E353.2 Batch R119167
Sample ID MBLK-1
Nitrogen NitrateNitrite as
Method Blank
ND mgfL 0.03
Run TECHNICON_090605A 06/05/09 1012
Sample ID LCS-2
Nitrogen NitrateNitrite as
Laboratory Control Sample
2.72 mg/L 0.10 109
Run TECHNICON_090605A
90 110
06/05/09 1Q31
Sample ID C09060071-OI3BMS
Nitrogen NitrateNitrite as
Sample Matrix Spike
2.69 mglL 0.10 103
Run TECHNICON_090605A
90 110
06/05/09 1307
Sample ID C09060071-OI3BMSD
Nitrogen NitrateNitriteas
Sample Matrix Spike Duplicate
2.72 mg/L 0.10 105
Run TECHNICON_090605A
90 110 1.1
06/05/09 1309
10
Qualifiers
RL Analyte reporting limit ND Not detected at the reporting limit
MDC Minimum detectable concentration Spike recovery outside of advisory limits
ENERGYLABORA TORIES INC 2393 Sail Creek Hiqhway 82501 P0 Sex 3258 Caspei WY82502
Tell Free 888.235.0515 307.235.0515 Far 307234.1539 casperenergy/ab.com www ener.qylaA corn
LAIIOR.4 TORIES
usiwu ummary epon
Client Denison Mines USA Corp Report Date 07/08/09
Project 2nd Quarter Groundwater Resample Work Order C09060101
Analyte Result Units RL %REC Low Limit High Limit RPD RPDLImIt Qual
Method E900.1 Batch GA-0241
Sample ID MB-GA-0241 Method Blank Run TENNELEC-3_090612A 06/1 5109 2317
Gross Alpha minus Rn 0.4 pCi/L
Gross Alpha minus Rn Precision 0.3 pCi/L
Gross Alpha minus Rn MDC 0.3 pCWL
Sample ID LCS-GA-0241 Laboratory Control Sample Run TENNELEC-3_090612A 06/15/09 2317
Gross Alpha minus Rn 27.3 pCi/L 102 70 130
Sample ID C09060101-OO3CMS Sample Matrix Spike Run TENNELEC-3_090612A 06/16/09 0059
Gross Alpha minus Rn 25.2 pCi/L 86 70 130
Sample ID C09060101-OO3CMSD Sample Matrix Spike Duplicate Run TENNELEC-3_090612A 06/16/09 0059
Gross Alpha minus Rn 26.9 pCi/L 95 70 130 6.4 23.1
Qualifiers
RL Analyte reporting limit ND Not detected at the reporting limit
MDC Minimum detectable concentration
ENERGVLABORATORIE$INC 2393 Salt Creek Hibway 82601 RU Sax 3258 Caspe1 WY82602
Tail Free 889235.0515 307235.0515 Fax [phone] casperenergyfafr.com www.energylab.comEIERGY
LABORATORIES
WAIL4L aummary eport
Client Denison Mines USA Corp Report Date 07108/09
Project 2nd Quarter Groundwater Resample Work Order 009060101
Analyte Result Units RL %REC Low Limit High Limit RPD RPDLimit QualH
Method SW8260B Batch RI 19060
Sample ID 03-Jun-09_MBLK_8 Method Blank Run 5975V0C1_090603A 06/03/09 1504
Acetone ND ug/L 20
Benzene ND ug/L 1.0
Carbon tetrachloride ND ug/L 1.0
Chloroform ND ug/L 1.0
Chloromethane ND ug/L 1.0
rnp-Xylenes ND ugIL 1.0
Methyl ethyl ketone ND ug/L 20
Methylene chloride ND ug/L 1.0
Naphthalene ND ug/L 1.0
o-Xylene ND ug/L 1.0
Toluene ND ug/L 1.0
Xylenes Total ND ug/L 1.0
Surr Dibromofluoromethane 1.0 97 70 130
Surr p-Bromofluorobenzene 1.0 103 80 120
Surr Toluene-d8 1.0 90 80 120
Surr 2-Dichlorobenzene-d4 1.0 99 80 120
Sample ID C09050941-OOIEMS Sample Matrix Spike Run 5975V0C1_090603A 06/04/09 1009
Acetone 1200 ug/L 200 125 70 130
Benzene 110 ug/L 10 114 70 130
Carbon tetrachloride 130 ug/L 10 128 70 130
Chloroform 130 ug/L 10 128 70 130
Chloromethane 140 ug/L 10 137 70 130
mp-Xylenes 230 ug/L 10 115 70 130
Methyl ethyl ketone 1200 ug/L 200 118 70 130
Methylene chloride 150 ug/L 10 149 70 130
Naphthalene 73 ug/L 10 73 70 130
o-Xylene 110 ug/L 10 114 70 130
Toluene 110 ug/L 10 113 70 130
Xylenes Total 340 ugIL 10 114 70 130
Surr Dibromofluoromethane 10 106 70 130
Surr p-Bromofluorobenzene 10 116 80 120
Surr Toluene-d8 10 97 80 120
Surr i2-Dichlorobenzene-d4 10 92 80 120
Sample ID C09050941-OOIEMSD Sample Matrix Spike Duplicate Run 5975V0C1_090603A 06/04/09 1045
Acetone 1100 ug/L 200 114 70 130
Benzene 110 ug/L 10 113 io iso 0.7 20
Carbon tetrachloride 120 ug/L 10 123 70 130 3.8 20
Chloroform 120 ug/L 10 122 70 130 5.1 20
Chloromethane 130 ug/L 10 129 70 130 20
mp-Xylenes 230 ug/L 10 114 70 130 0.3 20
Methyl ethyl ketone 1100 ug/L 200 iii 70 130 5.9 20
Methylene chloride 140 ug/L 10 140 70 130 5.8 20
Naphthalene 77 ug/L 10 77 70 130 5.3 20
o-Xylene 110 ug/L 10 113 70 130 0.7 20
Qualifiers
RL Analyte reporting limit ND Not detected at the reporting limit
MDC Minimum detectable concentration Spike recovery outside of advisory limits
ENERGYLABORA TORIES INC p2393 Sail Creek H1fqhway 82601 RO Box 3258 Caspet WY82602
____________To//Free 888.235 0515 307235.0515 Far 307234.1639 casperenergy/ab.com wwwenergy/ab.corn
LABOR/I TORIES
UMIUI ummary epon
Client Denison Mines USA Corp Report Date 07/08/09
Project 2nd Quarter Groundwater Resample Work Order C0906010l
Analyte Result Units RL %REC Low Limit High Limit RPD RPDLim1t
Method SW8260B Batch RI 19060
Sample ID C09050941-OOIEMSD Sample Matrix Spike Duplicate Run 5975V0C1_090603A 06/04/09 1045
Toluene 110 ug/L 10 114 70 130 0.7 20
Xylenes Total 340 ug/L 10 114 70 130 0.5 20
Surr Dibromofluoromethane 10 100 70 130 10
Surr p-Bromofluorobenzene 10 114 80 120 10
Surr Toluene-d8 10 96 80 120 10
Surr I2-Dichlorobenzene-d4 10 92 80 120 10
Sample ID 03-Jun-09_LCS_3 Laboratory Control Sample Run 5975V0C1_090603A 06/03/09 1203
Acetone 110 ug/L 20 106 70 130
Benzene 11 ug/L 1.0 108 70 130
Carbon tetrachloride 12 ug/L 1.0 117 70 130
Chloroform 12 ug/L 1.0 118 70 130
Chloromethane 11 ug/L 1.0 115 70 130
mp-Xylenes 22 ug/L 1.0 108 70 130
Methyl ethyl ketone 110 ug/L 20 105 70 130
Methylene chloride 13 ug/L 1.0 128 70 130
Naphthalene 7.4 ug/L 1.0 74 70 130
o-Xylene 11 ug/L 1.0 107 70 iao
Toluene 11 ug/L 1.0 107 70 130
Xylenes Total 32 ug/L 1.0 107 70 130
Surr Dibromofluoromethane 1.0 102 70 130
Surr p-Bromofluorobenzene 1.0 110 80 130
Surr Toluene-d8 1.0 96 80 120
Surr 12-Dichlorobenzene-d4 1.0 94 80 120
Qualifiers
RL Analyte reporting limit ND Not detected at the reporting limit
MDC Minimum detectable concentration
ENERGYLASORA TORIES INC 2393 SaIl Creek 1-/Ig/iway 82601 P0 Box 3255 Casper WY82602
To//Free 888.235.0515 307235.0515 Fax [phone] casperenergy/ab.com www.energylab.com
LAI3ORA TORIES
UA1UU summary eport
Client Denison Mines USA Corp Report Date 07/08/09
Project 2nd Quarter Groundwater Resample Work Order C09060101
Analyte Result Units RL %REC Low Limit High Limit RPD RPDLImit Qual
Method SW8260B Batch Ri 19126
Sample ID 04-June-09_LCS_3 Laboratory Control Sample Run GCMS2_090604A 06/04/09 1125
Acetone 93 ug/L 20 93 70 130
Benzene 9.6 ug/L 1.0 96 70 130
Carbon tetrachloride 11 ug/L 1.0 111 70 130
Chloroform ii ugiL 1.0 111 70 130
Chloromethane 9.6 ug/L 1.0 96 70 130
mp-Xylenes 20 ug/L 1.0 99 70 130
Methyl ethyl ketone 77 ug/L 20 77 70 130
Methylene chloride 10 ug/L 1.0 103 70 130
Naphthalene 7.7 ug/L 1.0 77 70 130
o-Xylene 10 ug/L 1.0 101 70 130
Toluene 10 ug/L 1.0 102 70 130
Xylenes Total 30 ug/L 1.0 100 70 130
Surr Dibromofluoromethane 1.0 107 70 130
Surr p-Bromofluorobenzene 1.0 105 80 130
Surr Toluene-d8 1.0 102 80 120
Surr 12-Dichlorobenzene-d4 1.0 94 80 120
Sample ID 04-June-09_MBLK_6 Method Blank Run GCMS2_090604A 06/04/09 1319
Acetone ND ug/L 20
Benzene ND ug/L 1.0
Carbon tetrachloride ND ug/L 1.0
Chloroform ND ug/L 1.0
Chloromethane ND ug/L 1.0
mp-Xylenes ND ug/L 1.0
Methyl ethyl ketone ND ug/L 20
Methylene chloride ND ug/L 1.0
Naphthalene ND ug/L 1.0
o-Xylene ND ug/L 1.0
Toluene ND ug/L 1.0
Xylenes Total ND ug/L 1.0
Surr Dibromofluoromethane 1.0 100 70 130
Surr p-Bromofluorobenzene 1.0 106 80 120
Surr Toluene-d8 1.0 98 80 120
Surr 12-Dichlorobenzene-d4 1.0 97 80 120
Sample ID C09050879-OO7AMS Sample Matrix Spike Run GCMS2_090604A 06/04/09 2124
Acetone 1100 ug/L 200 112 70 130
Benzene 100 ug/L 10 102 70 130
Carbon tetrachloride 130 ug/L 10 126 70 130
Chloroform 130 ug/L 10 130 70 130
Chloromethane 110 ug/L 10 112 70 130
mp-Xylenes 200 ug/L 10 102 70 130
Methyl ethyl ketone 920 ug/L 200 92 70 130
Methylene chloride 120 ug/L 10 122 70 130
Naphthalene 94 ug/L 10 94 70 130
o-Xylene 110 ug/L 10 107 70 130
Qualifiers
RL Analyte reporting limit ND Not detected at the reporting limit
MDC Minimum detectable concentration
EIERGY
LABORA TORIES
ENERGYLABORA TORIES INC 2393 Sail Creek HIhway 52601 RQ Box 3258 Casper WY 82602
To//Free 8t8.235.0515 307235.0515 Fax [phone] caspenenergy/ab.com wwwenergylab.com
-QA/CiC Summary Report
Report Date 07/08/09
Werk Order C09060101
Client Denison Mines USA Corp
Project 2nd Quarter Groundwater Resample
Analyte Result Units RL %REC Low Limit High Limit RPD RPDL1m1t
Method SW8260B Batch R119126
Sample ID C09050879-OO7AMS Sample Matrix Spike Run GCMS2_090604A 06/04/09 2124
Toluene 110 ug/L 10 107 70 130
Xylenes Total 310 ug/L 10 104 70 130
Surr Dibromofluoromethane 10 121 70 130
Sun p-Bromofluorobenzene 10 105 80 120
Surr Toluene-d8 10 102 80 120
Sum 12-Dichlorobenzene-d4 10 98 80 120
Sample ID C09050879-OO7AMSD Sample Matrix Spike Duplicate Run GCMS2_090604A 06/04/09 2202
Acetone 980 ug/L 200 98 70 130
Benzene 100 ug/L 10 102 70 130 20
Carbon tetrachlomide 120 ug/L 10 118 70 130 6.6 20
Chloroform 120 ug/L 10 116 70 130 9.4 20
Chloromethane 110 ug/L 10 106 70 130 5.9 20
m-p-Xylenes 200 ug/L 10 102 70 130 0.8 20
Methyl ethyl ketone 830 ugfL 200 83 70 130 11 20
Methylenechlonide 110 ug/L 10 110 70 130 11 20
Naphthalene 98 ug/L 10 98 70 130 3.8 20
o-Xylene 110 ug/L 10 107 70 130 20
Toluene 110 ug/L 10 106 70 130 0.4 20
Xylenes Total 310 ug/L 10 103 70 130 0.5 20
Sum Dibromofluoromethane 10 109 70 130 10
Surr p-Bromofluorobenzene 10 106 80 120 10
SurrToluene-d8 10 102 80 120 10
Surr 12-Dichlorobenzene-d4 10 94 80 120 10
Qualifiers
RL Analyte reporting limit ND Not detected at the reporting limit
MDC Minimum detectable concentration
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TO
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S
Energy Laboratories Inc
llo rko rd Re ce it lie list
ui iui IIlI IIIIIOIHIII hIUI
Denison Mines USA Corp C09060101
Login completed by Corinne Wagner Date and Time Received 6/2/2009 930 AM
Reviewed by Received by at
Reviewed Date Carrier name Next Day Air
Shipping container/cooler in good condition Yes No fl Not Present
Custody seals intact on shipping container/cooler Yes No Not Present
Custody seals intact on sample bottles Yes No Not Present
Chain of custody present Yes No
Chain of custody signed when relinquished and received Yes No
Chain of custody agrees with sample labels Yes No
Samples in proper container/bottle Yes No
Sample containers intact Yes No
Sufficient sample volume for indicated test Yes No
All samples received within holding time Yes No
Container/Temp Blank temperature 3C On Ice
water VOA vials have zero headspace Yes No No VOA vials submitted fl
water ph acceptable upon receipt Yes No Not Applicable
contact and Corrective Action Comments
One vial for MW 24 was received broken
ENERGYLABORA TORIES INC 2393 Sail Creek Highway 82601 P0 Box 3258 Cespe WY82602
Toil Free 888.235.0515 307235.0515 Fax [phone] casperiilenergylab.com www.energylab.com
CLIENT Denison Mines USA Corp Date 08-Jul-09
Project 2nd Quarter Groundwater Resample CASE NARRATIVE
Sample Delivery Group C09060101
ORIGINAL SAMPLE SUBMITTALS
Alt original sample submittals have been returned with the data package
SAMPLE TEMPERATURE COMPLIANCE 4C 2C
Temperature of samples received may not be considered properly preserved by accepted standards Samples that are hand
delivered immediately after collection shall be considered acceptable if there is evidence that the chilling process has begun
GROSS ALPHA ANALYSIS
Method 900.0 for gross alpha and gross beta is intended as drinking water method for low TDS waters Data provided by
this method for non potable waters should be viewed as inconsistent
RADON IN AIR ANALYSIS
The desired exposure time is 48 hours days The time delay in returning the canister to the laboratory for processing
should be as short as possible to avoid excessive decay Maximum recommended delay between end of exposure to
beginning of counting should not exceed days
SOIL/SOLID SAMPLES
All samples reported on an as received basis unless otherwise indicated
ATRAZINE SIMAZINE AND PCB ANALYSIS USING EPA 505
Data for Atrazine and Simazine are reported from EPA 525.2 not from EPA 505 Data reported by ELI using EPA method
505 reflects the results for seven individual Aroclors When the results for all seven are ND not detected the sample
meets EPA compliance criteria for PCB monitoring
SUBCONTRACTING ANALYSIS
Subcontracting of sample analyses to an outside laboratory may be required If so ENERGY LABORATORIES will utilize its
branch laboratories or qualified contract laboratories for this service Any such laboratones will be indicated within the
Laboratory Analytical Report
BRANCH LABORATORY LOCATIONS
eli-b Energy Laboratories Inc Billings MT
eli-g Energy Laboratories Inc Gillette Wi
eli-h Energy Laboratories Inc Helena MT
eli-r Energy Laboratories Inc Rapid City SD
eli-t Energy Laboratories Inc College Station TX
CERTIFICATIONS
USEPA WY00002 Radiochemical WY00937 FL-DOH NELAC E87641 Radiochemical E871017 California 02118CA
Oregon WY200001 Utah 3072350515 Virginia 00057 Washington C1903
ISO 17025 DISCLAIMER
The results of this Analytical Report relate only to the items submitted for analysis
ENERGY LABORATORIES INC CASPERWY certifies that certain method selections contained in this report meet
requirements as set forth by the above accrediting authorities Some results requested by the client may not be covered
under these certifications All analysis data to be submitted for regulatory enforcement should be certified in the sample
state of origin Please verify ELIs certification coverage by visiting www.energylab.com
ELI appreciates the opportunity to provide you with this analytical service For additional information and services visit our
web page www.energylab.com
THIS IS THE FINAL PAGE OF THE LABORATORY ANALYTICAL REPORT
EIERGY
LABOIL4 TOP/ES
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Uate 6/4/2009 Page of 12
All analyses applicable to the WA 5DWA and RCRA are perfoenied in accordance to NELAC protocols Pertinent sompling information is located on the attached COC This report is provided for the exelasise ase of the
addressee Privileges of snbseqnent nse of the name of this company or any member of its staff or reprodncaon of this report in connection svith the ndvertisement promotion or sale of any prodart or process or in connection
with the re-pabliration of this report for any parpose other than for the addressees ill be gmnted only on contact This company ncrepts no responsibility except for the dae performance of inspection nndior anntysis in good faith
and according to the rales of the trade and of science
AMERTCAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City UT
84115
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905403-001
MW-i
5/20/2009 22600 PM Analyzed 5/23/2009 55300 PM
5/22/2009
5W8260C
VOAs by GC/MS Method 8260C15030C
Units jtg/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydrofhran 109-99-9 2.0 8.4
Sun 12-Dichloroethane-d4 17060-07-0 77-144 109
Sun 4-Bromofluorobenzene 460-00-4 80-123 109
Surr Dibromofluoromethane 1868-53-7 80-124 96.0
Sun Toluene-d8 2037-26-5 80-125 101
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Date 6/4/200 Page of 12
Alt analyses applicable La the CWA SOWA and RCRA ore perfomsed in accordance La NELAC pratarols Pertinent sampling information is located on the aitachod COC This report is provided far the enclnsive nse of the
addressee Privileges nf sobsequent nse of the name of this company or soy member of sts staff or reprodoction of this report in connection srith the advertisement pronsotson or sale of any product or process or io connection
svsth the re-publication of this report for any purpose other than for she addressee as ill be granted only on contnci This company oceepts no responsibility escept for the dae performance of inspection andlor onslysis in good faith
ned according so the roles of the trade and of science
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City UT
84115
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905403-002
MW-2
5/19/2009 42700 PM Analyzed 5/23/2009 61900 PM
5/22/2009
SW8260C
VOAs by GC/MS Method 8260C15030C
Units g/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydrofbran 109-99-9 2.0 2.0
Sun 12-Dichloroethane-d4 17060-07-0 77-144 110
Sun 4-Bromofluorobenzene 460-00-4 80-123 103
Sun Dibromofluoromethane 1868-53-7 80-124 96.1
Sun Toluene-d8 2037-26-5 80-125 101
463 West 3600 South
Salt Lake City UT
84115
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Date 6/4/2009 Page ot 12
All analyses applicable ta the CWA SUWA and RCRA are pertanned in aeeardaaee ta NELAC prataeats Pertinent sampling tnfnrmatmn is laented an the nttaehed COC This repart is peavided far the eaelusive ase af the
addressee Privileges af snbseqaent nsa at the name af this eampnny ar any member at its staff ar repradaettan af this repart in eanneetian svith the advertisement pramatinn ar sale nf any pradaet ar peaceas ar in eannectian
svith the re-pnblieatinn af this repart far any paepnse ether than far the addressee svtll be granted anly an eantaet This rampany accepts na vespansibility eveept far the dne perfarmunce af inspeetian and/ar analysis In gaad faith
and arearding ta the rules af the trade and af science
AMERICAN
WEST
ANALYTICAL
LABORATORIES
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905403-003
MW-3
5/19/2009 94700 PM Analyzed 5/23/2009 64400 PM
5/22/2009
5W8260C
VOAs by GC/MS Method 8260C/5030C
Units jig/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydrofliran 109-99-9 2.0 2.0
Surr 12-Dichloroethane-d4 17060-07-0 77-144 113
Surr 4-Bromofluorobenzene 460-00-4 80-123 102
Surr Dibromofluoromethane 1868-53-7 80-124 97.0
Surr Toluene-d8 2037-26-5 80-125 101
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Date 6/4/2009 Page of 12
All analyses applicable in ihe CWA 5OWA and RCRA are perfarmed in aeeardance In NELAC pralacals Perlineal sampling iafarmaiian is laeaied en lEe allached COC This reparl is pravided far she esclnsive ase aflhe
addressee Privileges af sabseqaenl nsa af she name af Ibis campany ar any member af ils slaff ar repradaclian af Ihis repeal in canneelian svilh Ihe adverlisemenl pramalian ar sale af any pradarl ar praceas ar in eanneclian
wish the re-pablicalian at Ihis reparl far any pnrpase ether shan tar she addressee svill be granled anly an canInes This campany aceepls an aespaasibilily escepl far Ihe dna perfaniiaace af iasperliaa andtar analysis in gaad faiih
and accarding Ia she rules af she Irade and afsriaaee
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City UT
84115
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905403-004
MW-3A
5/19/2009 85700 PM Analyzed 5/26/2009 31300 PM
5/22/2009
5W8260C
VOAs by GC/MS Method 8260C/5030C
Units g/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydrofliran 109-99-9 2.0 2.0
Sun 12-Dichloroethane-d4 17060-07-0 77-144 108
Sun 4-Bromofluorobenzene 460-00-4 80-123 105
Surr Dibromofluoromethane 1868-53-7 80-124 95.9
Surr Toluene-d8 2037-26-5 80-125 104
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
5/18/2009 94000 AM
5/19/2009
5W8260C
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Report Date 5/28/2009 Page of
All analyses applicable ta the CWA 5DWA and RCRA arc performed in accardance In NELAC protocols Pertinent sampling infarmatian is lacated on the attached COC This report is provided far the cxclasivc nsc af the
addressee Privileges nf snbseqaent ase af the nansc nf this company an any member af its staff or reprodaction af this rcpart in coanectian svith the advertisement promotian or sale nf any pradact ar process an in connection
svith the cc pnblication nf this rcpart far any parpase ather than for the addressee svill be granted only an contact This company accepts en rcspansibiliiy except far the dac pcrfomaancn of inspection and/nc analysis in gaad faith
and according to the rales of the trade and of science
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905288-001
MW-4AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City UT
84115
Analyzed 5/20/2009 31100 PM
VOAs by GC/MS Method 8260C15030C
Units j.tg/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydrofitran 109-99-9 2.0 2.0
Surr l2-Dichloroethane-d4 17060-07-0 77-144 110
Surr 4-Bromofluorobenzene 460-00-4 80-123 105
Snrr Dibromofluoromethane 1868-53-7 80-124 100
Surr Toluene-d8 2037-26-5 80-125 102
463 West 3600 South
Salt Lake City UT
84115
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email awal@awal Iabs.com
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Date 5/28/2009 Page of
All analyses applicable ta the CWA 50WA and RCRA are perfarmed in aeeardance ta NhLAC pratacals Pertineat sampling infarmatian is lacated an She attached COC This repart is pravided far She exclusive ase af she
addressee Privileges af subsequent use af the name af this cempany ar any member af its staff ar repraduetian af this repert in caaueetian sxith the advertisement pramatina ar sale af anypradact ar pracess aria eanneetlea
seith there pablicatian af this repart far any parpase ether than far the addressee srill be granted anly an cantaci This campany accepts na respansibility except far the dae perfarmance af inspectian andlar analysis in gaad faith
and accarding ta the rates af ihe trade and af science
AMERICAN
WEST
ANALYTICAL
LABORATORIES
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
090528 8-002
MV/-S
5/16/2009 13200 PM Analyzed 5/20/2009 33700 PM
5/19/2009
5W8260C
VOAs by GC/MS Method 8260C/5030C
Units gIL
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qua
Tetrahydrofhran 109-99-9 2.0 11
Surr 12-Dichloroethane-d4 17060-07-0 77-144 111
Surr 4-Bromofluorobenzene 460-00-4 80-123 105
Surr Dibromofluoromethane 1868-53-7 80-124 96.8
Surr Toluene-d8 2037-26-5 80-125 101
463 West 3600 South
Salt Lake City UT
84115
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Date 5/28/2009 Page of
Alt analyses applicable ta the CWA SDWA and RCRA are perfarmed in aceardance ta NELAC pratacals Pertinent sampling infarmatian is lecated an the attached COC This repnrt is prnvided far the enclasive nse nf the
addressee Privileges af snbseqaent nse af the name af this campany ar any member af its staff ar repradnetian af this repaet in cannectian svith the advertisement pramatian ar sate af any pradnet ar pracess ne in cannectian
mith the re-pablicatian af this repact far any pnrpase ether than far the addressee svitt he granted enly an caninet This cempany accepts en respansibility encept far the dae perfernsance ef inspectien andtar analysis in gned faith
and accarding ta the rales af the trade and af science
AMERICAN
WEST
ANALYTICAL
LABORATORIES
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905288-003
MW-li
5/17/2009 85700 AM Analyzed 5/20/2009 40300 PM
5/19/2009
5W8260C
VOAs by GC/MS Method 8260C/5030C
Units tg/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydrofitran 109-99-9 2.0 3.2
Surr 12-Dichloroethane-d4 17060-07-0 77-144 112
Surr 4-Bromofluorobenzene 460-00-4 80-123 104
Surr Dibromofluoromethane 1868-53-7 80-124 97.0
Surr Toluene-d8 2037-26-5 80-125 101
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City UT
84115
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Date 5/28/2009 PageS of
All analyses applsrable La she CWA SDWA and RCRA are perfarmed sn aecardance La NELAC pratacals Peetineat sampling infarmatian is larased an the attached COC This repnrt is prnvtded far she exclasive ase af the
addressee Privileges af sabseqaeat ase af the name af this campaay ar any member af its staff ar repradurtian af this repart in raanectsan ss tb the advertisement pramatian ar sale af any pradart ar pracess ar in rannectian
srith the re-pahlteattan af this repart far any parpase ather than far the addressee srill be granted anly an raalact This rampany accepts na respaasibiltty except far the dae perfarmaisre af iaspeetiaa and/ar analysis in gaad faith
and arearditig La the niles af the trade and af seieace
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905288-004
MW-12
5/16/2009 31600 PM Analyzed 5/20/2009 42800 PM
5/19/2009
5W8260C
VOAs by GC/MS Method 8260C/5030C
Units jxg/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydrofliran 109-99-9 2.0 3.4
Surr l2-Dichloroethane-d4 17060-07-0 77-144 111
Surr 4-Bromofluorobenzene 460-00-4 80-123 103
Surr Dibromofluoromethane 1868-53-7 80-124 96.5
Surr Toluene-d8 2037-26-5 80-125 101
463 West 3600 South
Salt Lake City UT
84115
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Date 5/28/2009 Page of
All analyses applicable ta the CWA 5DWA and RCRA are perfarmed in aecardanee ta NELAC prateeots Pertinent sampling iafarmation is taeated an the attached CCC This repent is pravided far the exclusive use af the
addressee Privileges ef subsequent ase ef the name ef this eampany en any member at its staff en repredactien of this repoet in eanneetian svith the advertisement prometion en sale af any predaet ar process or in eenneetioe
ivith the re-publieatien ef this repent for any parpese ether than fur the addressee svill he greeted enly en eentaet This company accepts en respoesibility except for the due perfarmanee of iuspeetien and/or analysis in geod faith
and aeeordieg ta the rnles of the trade aad of science
AMERICAN
WEST
ANALYTICAL
LABORATORIES
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905288-005
MW-14
5/16/2009 85900 AM Analyzed 5/20/2009 45400 PM
5/19/2009
5W8260C
VOAs by GC/MS Method 8260C15030C
Units jig/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydroftiran 109-99-9 2.0 2.0
Surr 12-Dichloroethane-d4 17060-07-0 77-144 112
Surr 4-Bromofluorobenzene 460-00-4 80-123 104
Surr Dibromofluoromethane 1868-53-7 80-124 95.9
Surr Toluene-d8 2037-26-5 80-125 101
463 West 3600 South
Salt Lake City UT
84115
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Date 5/28/2009 Page of
Alt analyses applicable ta the CWA 50WA and RCRA are perfarnaed in aceardanee ta NELAC prataeals Pertinent sampling infarmatian is Inrated an the attached COC This eepart is pravided far the enelasive ase af the
addressee Privileges af sabsequent ase af the name af this eampany ar any member ef its staff ar repredaetinn af this repart in cannectian saab the advertisement pramatina er sale af any pradact ar praeess ar in eanaeetian
seith the re-pabliratina af this repart far any parpase ather than far the addressee sail be granted anly an enntnei This eampany accepts an respansibility eacept far the due perfarmanee af inspeetian and/ar analysis in gand faith
and areneding in the rales nf the trade and nfscienee
AMERICAN
WEST
ANALYTICAL
LABORATORIES
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905288-006
MW-15
5/16/2009 111700 AM Analyzed 5/20/2009 52000 PM
5/19/2009
5W8260C
VOAs by GC/MS Method 8260C15030C
Units jig/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydrofitran 109-99-9 2.0 2.0
Surr 12-Dichloroethane-d4 17060-07-0 77-144 112
Surr 4-Bromofluorobenzene 460-00-4 80-123 104
Surr Dibromofluoromethane 1868-53-7 80-124 96.5
Surr Toluene-d8 2037-26-5 80-125 101
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
5/19/2009 121200 PM
5/22/2009
SW8260C
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Report Date 6/4/2009 Page of 12
All analyses applicable to she CWA 5OWA and RCR.A are performed in accordance to NELAC protocols Pertinent sampling information is located on the attached COC This report is provided for the eociasive ase af the
addressee Privileges af sabseqoent nse af the name of thin company ar any member af its staff ar repradnetien af this repart in connection svith the advertisement promotion er sale of any prodnet or process or in connection
svith the re-peblieaoon of this report for any porpose other than for the addressee soul be granted only on contact This company neeepts no responsibility encept for the doe perlormanee of inspection and/or analysis in good faith
and according to the mien of the trade and of science
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905403-005
MW-17AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City UT
84115
Analyzed 5/26/2009 42900 PM
VOAs by GC/MS Method 8260C/5030C
Units tg/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qilal
Tetrahydrofliran 109-99-9 2.0 2.0
Sun 2-Dichloroethane-d4 17060-07-0 77-144 108
Sun 4-Bromofluorobenzene 460-00-4 80-123 101
Sun Dibromofluoromethane 1868-53-7 80-124 95.9
Surr Toluene-d8 2037-26-5 80-125 102
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Dale 6/4/2009 Page ot 12
All analyses applicable ta the CWA 5DWA and RCRA are perfarmed in accardanee ta NELAC pratacals Pertinent sampling infarmatian is larated an the attached CCC This repart is pravided far the exciasive age af the
addressee Privileges af snbseqaent ase af the name af this campany ar any member af its staff ar rrpradactian af this repart in eaaaerttan sviih the advertisement pramatian ar sale af any pradact ar praress ar in ranaeciiaa
svith there pablicaltan af this repart far any parpase athar than far the addressee will be granted anly an rantact This rampany accepts na raspaasibility asrrpt far the dnr prrfarmanee af aspertian and/ar analysts in gaad faith
and arrarding ta the mies nf the trade and afsrienre
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City UT
84115
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905403-006
MW-18
5/20/2009 120200 PM Analyzed 5/26/2009 45500 PM
5/22/2009
SW8260C
VOAs by GC/MS Method 8260C/5030C
Units g/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydrofhran 109-99-9 2.0 2.0
Sun 12-Dichloroethane-d4 17060-07-0 77-144 107
Sun 4-Bromofluorobenzene 460-00-4 80-123 101
Surr Dibromofluoromethane 1868-53-7 80-124 96.0
Sun Toluene-d8 2037-26-5 80-125 103
463 West 3600 South
Salt Lake City UT
84115
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Date ts/4/211t9 Page of 12
All analyses applicable 10 Ihe CWA 5DWA and RCRA are performed in accordance 10 NELAC pralneols Perlinenl sampling infnrmalinn in localed on Ihe allached COC This repass is provided fnr Ihe enclasive use of Ihe
addcessee Privileges nf subseqnenl use af she name of Ibis company or any membee nf ill slaff oe reprodnelinn nf Ibis reparl in ennneelion snilh Ihe adveelisemenl prnmolinn ar sale nf any prndncl or process aria conneclion
svilh lIre re publienlion of Ibis reporl for any purpose olber Ihan for Ihe addressee will be granled only on eonlael This company aecepss no responsibilily cacepl for she due performance of inspecsioa ondlor analysis in good faslb
and according In she roles of she Irode and of science
AMERICAN
WEST
ANALYTICAL
LABORATORIES
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905403-007
MW-19
5/20/2009 94200 PM Analyzed 5/26/2009 52100 PM
5/22/2009
SW8260C
VOAs by GC/MS Method 8260C/5030C
Units j.tg/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydrofiaran 109-99-9 2.0 2.0
Sun 12-Dichloroethane-d4 17060-07-0 77-144 104
Sun 4-Bromofluorobenzene 460-00-4 80-123 102
Surr Dibromofluoromethane 1868-53-7 80-124 94.8
Sun Toluene-d8 2037-26-5 80-125 103
463 West 3600 South
Salt Lake City UT
84115
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Date 5/27/2009 Page of 10
All analyses applicable to the CWA 5DWA and RCRA are performed in accordance ta NELAC protocols Pertinnat sampling infarmation is located on the attached COC This repart is pravided far the exclasive ase af the
addressee Privileges af subseqaent nse af the name af Ibis campany or any member af its staff ar repraduetian af Ibis repart in eaaaectiaa with the advertisement pramatiax er sale af any pradaci ar pracnss ar in eanneetian
seith the re-pabliealion af Ibis repart far any parpase other than far the addressee will he granted only on cantart This eampany accepts no respansibitity except far the due perfarmaner af iaspeetian and/ar analysis in gaad faith
and aeearding to the rales af the trade and af science
AMERICAN
WEST
ANALYTICAL
LABORATORIES
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905253-001
MW-20
5/14/2009 91700 AM Analyzed 5/18/2009 122500 PM
5/15/2009
5W8260C
VOAs by GC/MS Method 8260C/5030C
Units ig/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydrofliran 109-99-9 2.0 2.0
Surr 2-Dichloroethane-d4 17060-07-0 77-144 114
Surr 4-Bromofluorobenzene 460-00-4 80-123 108
Surr Dibromofluoromethane 1868-53-7 80-124 97.1
Surr Toluene-d8 2037-26-5 80-125 98.1
463 West 3600 South
Salt Lake City UT
84115
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analyticnl Results
Report Date 5/27/2009 Page of 10
All analyses applicable to the CWA SOWA and RCRA are perfomsed in occardance Ia NELAC protocols Pertinent sampling infarmalion is loealed an the aliached COC This report is provided far she onelasive nse of the
addressee Privileges of snbsrqarnt aso of the name of Ibis company or any member of its siaff or reprodoclion of Ibis reporl in connection sviih she advortisemens promolion or sale of any prodacl or process aria conneclion
snub there publication of Ibis reporl far any purpose oiher Ihan for the addressee soill be granled only on eontacl This company accepts no responsibilily camps for she doe performance of inspeclion and/or analysis in good failh
and according lathe roles of she Irade and of science
AMERTCAN
WEST
ANALYTICAL
LABORATORIES
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905253-002
MW-22
5/14/2009 83200 AM Analyzed 5/18/2009 125600 PM
5/15/2009
5W8260C
VOAs by GC/MS Method 8260C/5030C
Units jig/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydrofran 109-99-9 2.0 2.0
Surr 12-Dichloroethane-d4 17060-07-0 77-144 105
Surr 4-Bromofluorobenzene 460-00-4 80-123 91.8
Surr Dibromofluoromethane 1868-53-7 80-124 94.0
Surr Toluene-d8 2037-26-5 80-125 96.4
463 West 3600 South
Salt Lake City UT
84115
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Date 6/4/2109 Page of 12
Alt analyses applicable In the CWA SDWA and RCRA are performed in accordance In NELAC protocols Pertinent sampling infoemation is located en the attached COC This report is provided fnr the eneinsive nse of the
addressee Privileges of sabseqoeni ase ef the name of this company er any member of its staff or eepcodaetinn of this repact in eeneection srith the advertisement promotion or sale af any peodact ar process or in connection
svith there pablicatioa of Ibis report Car any parpose ather thaa for the addressee svttt be granted only an reelect This eampany accepts no responsibility except far the dae performance of iaspecttoa aad/ar analysis in goad faith
and according to the roles af the trade and of science
AMERICAN
WEST
ANALYTICAL
LABORATORIES
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905403-008
MW-23
5/21/2009 80800 PM Analyzed 5/26/2009 54700 PM
5/22/2009
SW8260C
VOAs by GC/MS Method 8260C/5030C
Units Jlg/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydroftiran 109-99-9 2.0 2.0
Surr 12-Dichloroethane-d4 17060-07-0 77-144 106
Sun 4-Bromofluorobenzene 460-00-4 80-123 102
Sun Dibromofluoromethane 1868-53-7 80-124 95.8
Surr Toluene-d8 2037-26-5 80-125 103
463 West 3600 South
Salt Lake City UT
84115
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Date 6/4/2009 Page 10 of 12
Alt analyses applicable ta the CWA 5OWA and RCRA are performed in accordance to NELAC protneals Pertinent sampling information is located on She attached COC This report is provided far She exelasive use af she
addressee Pris ileges of sabseqoent ose of the name of this company or any member of its stofC or reprodoetioo of this report io connection svith ihe advertisemeot promotion or sole of any product or process oe in connection
svith the cc poblication of this report for aoy purpose other than for the addressee svill be granted only no contact This compaoy accepts no responsibility except for the doe performance of inspection aodlor analysis in good faith
and accordiog to the roles of the trade and of scieoce
AMERICAN
WEST
ANALYTICAL
LABORATORIES
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905403-009
MW-24
5/21/2009 83000 PM Analyzed 5/26/2009 61200 PM
5/22/2009
SW8260C
VOAs by GC/MS Method 8260C/5030C
Units gg/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydrofliran 109-99-9 2.0 2.0
Sun l2-Dichloroethanc-d4 17060-07-0 77-144 107
Sun 4-Bromofluorobenzeae 460-00-4 80-123 102
Surr Dibromofluoromethane 1868-53-7 80-124 95.8
Sun Tolueae-d8 2037-26-5 80-125 102
463 West 3600 South
Salt Lake City UT
84115
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Date 5/27/2009 Page of 10
All analyses applicable to the CWA 5OWA and RCRA are performed in accordance ta NELAC prntoeots Pertinent sampling infnrmatian is located an the attached COC This report is peovided far the enclasive nse nf the
addeessee Privileges of sabseqaeot ose of the name of this company or any member of its staff orreprodoetioa af this repart in connection svith the advertisement promotion or sale of any prodnet ar process or in connection
svith the re pobiteatian of this report for any parpote other than for the addressee saul he granted only on contact This company accepts no responsibility except for the doe performance of inspection and/or analysis in good faith
and according to the roles of the trade and of science
AMERICAN
WEST
ANALYTICAL
LABORATORIES
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905253-003
MW-25
5/13/2009 53200 PM Analyzed 5/18/2009 12200 PM
5/15/2009
SW8260C
VOAs by GC/MS Method 8260C15030C
Units jig/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
TetrahydrofUran 109-99-9 2.0 2.0
Surr 12-Dichloroethane-d4 17060-07-0 77-144 113
Surr 4-Bromofluorobenzene 460-00-4 80-123 102
Surr Dibromofluoromethane 1868-53-7 80-124 96.4
Surr Toluene-d8 2037-26-5 80-125 97.4
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Date 5/25/2019 PageS of
All analyses applicable Ia she CWA 5DWA and RCRA are perfarmed in accordance so NELAC prniaeals Periineni sampling infarmalian is lacaled an she aliaehed COC This repari is provided far she eselasive nse af she
addressee Privileges of sahseqnenl ase af ihe name of ibis company ar any member af us siaff ar reprodncsian of Lhis repors in conneeiian wish she adverissemeni pramasian ar sale af any pradaei or process ar in eaoneeiion
sviih she re pabliensian af Ihis reparl far any parpase asher shan far she addressee saill be granied anly an eanlaes This rompany aeeepis no respansihilily eseepi far she dne performance af insperisan and/or analysis in goad faiih
and according so she roles af she irade and af science
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City UT
84115
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905288-007
MW-2c
5/18/2009 90500 AM Analyzed 5/20/2009 54600 PM
5/19/2009
SW8260C
VOAs by GUMS Method 8260C15030C
Units j.tg/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydrofiiran 109-99-9 2.0 2.0
Surr 12-Dichloroethane-d4 17060-07-0 77-144 112
Surr 4-Bromofluorobenzene 460-00-4 80-123 103
Surr Dibromofluoromethane 1868-53-7 80-124 100
Surr Toluene-d8 2037-26-5 80-125 101
463 West 3600 South
Salt Lake City UT
84115
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email awal@awal labs.eom
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Date 6/4/2009 Page 11 ot 12
All analyses applicable ta the CWA SUWA and RCRA see peetormed in accardance ta NELAC pratacals Pertinent sampling hiformntion is located an the attached COC This report is pravided far the exclusive ase af the
addressee Privileges efsabseqoentase of the name of this company ar any member af its staff orreprodactian af this report in cannection soith the advertisement promotinn er sale afony product ne process er in connection
with the republication of this report for any purpose other than for the addressee soill be granted only on contact This company accepts no responsibility except for the doe performance of inspection and/or analysis in good faith
and according to the roles of the trade and of science
AMERICAN
WEST
ANALYTICAL
LABORATORIES
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905403-010
MW-27
5/19/2009 24200 PM Analyzed 5/26/2009 63800 PM
5/22/2009
SW8260C
VOAs by GC/MS Method 8260C/5030C
Units 1g/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydrofuran 109-99-9 2.0 2.0
Sun 2-Dichloroethane-d4 17060-07-0 77-144 104
Sun 4-Bromofluorobenzene 460-00-4 80-123 101
Surr Dibromofluoromethane 1868-53-7 80-124 94.9
Sun Toluene-d8 2037-26-5 80-125 102
463 West 3600 South
Salt Lake City UT
84115
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Date 5/27/2009 Page of 10
All analyses applicable to the CWA 5DWA and RCRA ore performed in accordance to NELAC pratocols Pertinent snmplieg teformatian in located on the attached COC This report is provided for the exclusive use of the
addressee Privileges of sobsegneet nse of the name of this company or aey member of its staff or reprodoetion of this report tn coeneetion svith the advertisement promotion or sole of ony peodoct or process ore eoneectioe
svith the re-pnblteatioe of this report for ony porpose other than for the oddressee svill be granted only on contact This eontpony accepts no responsibility except for the doe performance of inspection nndlor analysis in good faith
ond according to the mien of the trode ond of science
AMERICAN
WEST
ANALYTICAL
LABORATORIES
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905253-004
MW-28
5/12/2009 24700 PM Analyzed 5/18/2009 14800 PM
5/15/2009
5W8260C
VOAs by GC/MS Method 8260C/5030C
Units g/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydrofran 109-99-9 2.0 2.0
Surr 2-Dichloroethane-d4 17060-07-0 77-144 114
Surr 4-Bromofluorobenzene 460-00-4 80-123 103
Surr Dibromofluoromethane 1868-53-7 80-124 96.6
Surr Toluene-d8 2037-26-5 80-125 97.6
463 West 3600 South
Salt Lake City UT
84115
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Date 5/27/2009 Page of 10
All analyses applicable La the CWA 5DWA and RCRA are perfarmed in aecardance In NELAC pratneals Pertinent sampling infarmatian is Ineated an the attached COC This repart is pravided fae the enelasive ase af the
addressee Privileges af sabseqaent ase af the name af this campany ar any member af its staff ar repradactian alibis repart in cannectian with the advertisement pramatien ar sale ninny prndaet er pracess at in cannectian
svith the re-pahlicatien af this repert far any parpese ether than far the addressee seill he granted enly an cantact This eampany accepts nn respansibility eneept far the dac perfarmnnre af inspectian and/er analysis in geed faith
and acearding La the mles ef the trade and ef science
AMERICAN
WEST
ANALYTICAL
LABORATORIES
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905253-005
MW-29
5/13/2009 75800 AM Analyzed 5/18/2009 21300 PM
5/15/2009
5W8260C
VOAs by GC/MS Method 8260C15030C
Units g/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydrofhran 109-99-9 2.0 2.0
Surr l2-Dichloroethane-d4 17060-07-0 77-144 116
Surr 4-Bromofluorobenzene 460-00-4 80-123 102
Surr Dibromofluoromethane 1868-53-7 80-124 96.8
Surr Toluene-d8 2037-26-5 80-125 96.8
463 West 3600 South
Salt Lake City UT
84115
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Date 5/27/2009 Page of 10
All analyses applicable to the CWA 5DWA and RCRA ore perfomaed in accordance so NELAC protocols Pertinent sampling information is Ineated an She attached COC This report is pravided far she exclusive use af the
addressee Privilegrs of sabseqarat ase of the name of this company or any memberaf its stafC or reproduction of this report in connection svith the advertisement promotion or sale of any product or process aria roanrctiaa
svith the re publication of this report far any purpose other than for the addressee avill be granted only on contact This company accepts no responsibility except far ihe due performance of inspection undlor analysis in goad faith
and according to the rates of ihc trade and of science
AMERICAN
WEST
ANALYTICAL
LABORATORIES
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905253-006
MW-30
5/13/2009 101700 AM Analyzed 5/18/2009 23900 PM
5/15/2009
5W8260C
VOAs by GC/MS Method 8260C15030C
Units g/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydrofliran 109-99-9 2.0 2.0
Surr 12-Dichloroethane-d4 17060-07-0 77-144 114
Surr 4-Bromofluorobenzene 460-00-4 80-123 102
Surr Dibromofluoromethane 1868-53-7 80-124 96.0
Surr Toluene-d8 2037-26-5 80-125 97.7
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Date 5/27/2009 Page of 10
All analyses applicable La the CWA 5DWA and RCRA are perfnmied in accardance tn NELAC pratncals Pertinent sampling infarmatian is tacated an the attached COC This eepart is pravided fae the enetnsive ase nf the
addressee Privileges af sabseqaent nse af the name af this eampany ar any memberaf its staffer repradnetinn af this repart in eanneetian seith the advertisement pramatinn arsale af any pendant ar pracess ar in eanneetian
srith the re pnbtieatian nf this repnrt far any parpase ather than far the addressee svill be granted anty an eantact This campany accepts na respansibitity eacept far the dan perfnrmaaee af inspeetian andlar analysis in gaad faith
and aeearding tn the rates af the trade and af science
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City UT
84115
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905253-007
MW-31
5/13/2009 123700 PM Analyzed 5/18/2009 30500 PM
5/15/2009
5W8260C
VOAs by GC/MS Method 8260C/5030C
Units .tg/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qua
Tetrahydrofitran 109-99-9 2.0 2.0
Surr 12-Diehloroethane-d4 17060-07-0 77-144 115
Surr 4-Bromofluorobenzene 460-00-4 80-123 102
Surr Dibromofluoromethane 1868-53-7 80-124 96.5
Surr Toluene-d8 2037-26-5 80-125 97.4
463 West 3600 South
Salt Lake City UT
84115
801 263-8686
Toll Free 888 263-8686
Fax 80fl263-8687
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Date 5/27/2009 Page of 10
All analyses applicable ta the CWA 50WA and RCRA are perfannad in accardance in NELAC pratacals Pertinent sampling infamratian us lacated an the attached COC This repart us pravided far the enclasive nsa af the
addressee Privileges nf snbseqnent ase af the name nf this cnmpnny nr any member nf its staff ar repradnrtuan af this raped in cannectian with the advertisement pramatian ar sale af any pradact ar prncrss ar in cnnnactinn
svith the re-pnbtucatinn af this repart far any pnrpase ether than far the addressee svill be granted anly nn cantact This cnmpany accepts na respnnsibility except far the dna perfnrmance af unspectuan and/ar analysis in gand faith
and nccnrding in the rnles nf the trade and af science
AMERICAN
WEST
ANALYTICAL
LABORATORIES
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905253-008
MW-32
5/13/2009 30200 PM Analyzed 5/18/2009 33000 PM
5/15/2009
5W8260C
VOAs by GC/MS Method 8260C/5030C
Units g/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydrofran 109-99-9 2.0 2.0
Surr 12-Dichloroethane-d4 17060-07-0 77-144 115
Surr 4-Bromofluorobenzene 460-00-4 80-123 101
Surr Dibromofluoromethane 1868-53-7 80-124 95.1
Surr Toluene-d8 2037-26-5 80-125 95.4
463 West 3600 South
Salt Lake City UT
84115
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Date 5/2/2uu9 Page of
All analyses applicable ta the CWA SOWA and RCRA arc partnrmcd Ia accnrdanca ta NELAC pratnenis Pertinent sampling infnrmntinn is lncatcd an the attached COC This rapart is pravided far the enclasive nsa ni the
addressee Privileges nf snhseqncnt nsa nf the name nf this cnmpnny ar any member nf its staff ar reprndnctinn nf this rapart in cnnncctinn svith the advertisemani prnmatian na sale ninny prndnct nr pracess nr in cnnnrctinn
snith the rr-pnblicntinn nf this rcpnrt fnr any pnrpnse nthrr than far the addressee will hr granted nnty nn cnntnrt This cnmpany accepts nn respnnsibiliiy encapi far the dan perfnrmnncr nf insprrtinn nndnr analysis in gnnd fniih
and nccnrding ta the mles nf the trade and nf science
AMERICAN
WEST
ANALYTICAL
LABORATORIES
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905288-008
MW-60
5/18/2009 80000 AM Analyzed 5/22/2009 71300 AM
5/19/2009
5W8260C
VOAs by GC/MS Method 8260C/5030C
Units ig/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydrofitran 109-99-9 2.0 2.0
Surr 12-Dichloroethane-d4 17060-07-0 77-144 110
Surr 4-Bromofluorobenzene 460-00-4 80-123 106
Surr Dibromof7luoromethane 1868-53-7 80-124 96.1
Surr Toluene-d8 2037-26-5 80-125 101
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Mcthod Used
Analytical Results
Report Date 5/27/2009 Page 10 of 10
All analyses applicable to the CWA 5DWA and RCRA are performed in accordance to NELAC pratoeols Peronent sampling information is located en lhe attached COC This report is provided far the exctasuve ase of the
addressee Privileges of snbscqaent nse of the name of Ibis company or any member of as staff or reprodacoon of this report in connection soith the advertisement promotion or sole of any prodoet or process or in eonneeaon
scab the re pablication of this report for any parposo other than for the addressee svill he granted only on contact This company accepts no responsibility eccopt for the doe performance of inspection and/or analysis in good faith
and according to the mien of the trade and of science
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City UT
84115
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905253-009
MW-65
5/13/2009 30200 PM Analyzed 5/18/2009 35600 PM
5/15/2009
5W8260C
VOAs by GC/MS Method 8260C15030C
Units 1gIL
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydrofran 109-99-9 2.0 2.0
Surr 12-Dichloroethane-d4 17060-07-0 77-144 116
Surr 4-Bromofluorobenzene 460-00-4 80-123 101
Surr Dibromofluoromethane 1868-53-7 80-124 95.6
Surr Toluene-d8 2037-26-5 80-125 95.8
463 West 3600 South
Salt Lake City UT
84115
801 263-8686
Toll Free 888 263-8686
Fax [phone]
email [e-mail]
Kyle Gross
Laboratory Director
Jose Rocha
QA Officer
Client
Project ID
Lab Sample ID
Client Sample ID
Collection Date
Received Date
Method Used
Analytical Results
Report Date 6/4/2009 Page 12 of 12
All 000lysLs applicablc to the CWA SDWA arid RCRA are performed in accordance to NELAC protocols Pertinent sampling information is located on the attached COC This report is provided for the exclusive use of the
addressee Privileges of sabseqoeni ose of the name of this company or any member of its staff or reprodaction of this report in connection soith the advertisement promotion or sole of any prodoct or process or in eooncction
srith there poblicotion of this report for any porpose other than for the addressee srill be granted only on contact This company accepts no responsibility encept for the doe performance of inspection and/or analysis in good faith
and according to the niles of the trade and of science
AMERICAN
WEST
ANALYTICAL
LABORATORIES
ORGANIC ANALYTICAL REPORT
Denison Mines Contact Steve Landau
2nd Quarter Ground Water
0905403-011
MW-70
5/20/2009 120200 PM Analyzed 5/26/2009 70400 PM
5/22/2009
5W8260C
VOAs by GC/MS Method 8260C/5030C
Units jig/L
Dilution Factor
Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual
Tetrahydrofkran 109-99-9 2.0 2.0
Surr 12-Dichloroethane-d4 17060-07-0 77-144 107
Sun 4-Bromofluorobenzene 460-00-4 80-123 100
Sun Dibromofluoromethane 1868-53-7 80-124 95.8
Surr Toluene-d8 2037-26-5 80-125 103
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Sheetl ofDENISON
MINES
CHAIN OFCUSTODY
Samples Shipped to American West Apalytical Lab Contact Ryan Palmer or David Turk
463 West 3600 South Ph 435 678 2221
Salt Lake City Ut 84115 rpalmerdenisonmines.com
______________________________dturkdenisonmines.com
Chain of Custody/Sampling Analysis Request
Project Samplers Name Samplers Signature
2nd
Tanner Holliday
Sample ID
Date
Collected
Time
Collected Laboratory Analysis Requested
MW-4 5/18/2009 940 THF
MW-S 5/16/2009 1332 THF
MW-li 5/17/2009 857 THF
MW-12 5/16/2009 1516 THF
MW-14 5/i 6/2009 859 THF
MW-IS 5/16/2009 1117 THF
MW-26 5118/2009 905 THF
MW-60 5/18/2009 800 THF
Please nofify Ryan Palmer of Reciept tempature on these samples Immediately Thank you
Relin ed3i
riure
Relinished
ySignature
5/18/2009
uate/Time
1055
Date/Time
Keceiveci 13
Received BySignature
Date/lime
Date/Time
UPS Internet Shipping Shipment Label
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FOLD HERE
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https//www.ups.com/uis/createActionOriginPairprintUISReceiptPOPUP_LEVEL..5/18/2009
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oTa5IG3
OENISONAAE
MINES
CHAIN OF CUSTODY
Sheet of
Samples Shipped to American West Analytical Lab
463 West 3600 South
Salt Lake City Ut 84115
Contact Ryan Palmer or David Turk
Ph 435 678 2221
roalmercªdenisonmines.bom
______________________________dturkcThdenisonmines.com
Chain of Custody/Sampling Analysis Request
Project Samplers Name Samplers Signature
2nd
QrGround Tanner Holliday
Sample ID
Date
Collected
Time
Collected Laboratory Analysis Requested
MW-I 5/20/2009 1426 THF
MW-2 5/1 912009 1627 THF
MW-3 5/19/2009 947 THF
MW-3A 5/19/2009 857 THF
MW-I7 5/19/2009 1212 THF
MW-I 5/20/2009 1202 THF
MW-I9 5/20/2009 942 THF
MW-23 5/21/2009 808 THF
MW-24 5/21/2009 830 THF
MW-27 5/19/2009 1442 THF
MW-70 5/20/2009 1202 THF
Please notify Ryan Palmer of Reciept tempature rn these samples Immediately Thank you
Felinquished 13ySignature fDate/llme
15/21/2009
1020
Received BySignatuj-Date/Time
Relinquished BySignatre Date/Time Received BySignature Date/Ti
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OENISONOAA
MINES
CHAIN OF CUSTODY
Sheeti of
Samples Shipped to American West Analytical Lab
463 West 3600 South
Salt Lake City Ut 84115
Contact Ryan Palmer or David Turk
Ph 436 678 2221
[e-mail]
______________________________dturkdenisonmines.com
Chain of Custody/Sampling Analysis Request
Project Samplers Name Samplers Siqnature
Ground
Tanner Holliday
Date
ID Collected
Time
Collected Laboratory Analysis Requested
5/14/2009 917 THF
5/14/2009 832 THF
5/13/2009 1732 THF
MW-28-5/12/2009 1447 THF
5/13/2009 758 THF
5/13/2009 1017 THF
5/13/2009 1237 THF
5/13/2009 1502 THF
5/13/2009 1502 THF
Ryan Palmer of Reciept tempature on these samples Immediately Thank you
i96ature
1/
.it-/tyc---
By.Signature
Date/Time
5/14/2009
1030
Date/Time
Received BySignature
Received By.Signature
r\ULA
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Attachment
Quarterly Depth to Water
NAME Tanner Holliday Ryan Palmer
DATE 6/30/2009
MMHG 521.03
Start time 900
Finish Time 1505
TIME WELL l.D
1421 MW-S
DEPTH TIME WELL l.D
106.51 911 1W4-5
1242 TW4-25
DEPTH TIME WELL I.D
55.97
46.8
DEPTH
1322 MW-i 662 924 MW-4 71.29 1305 PIEZ-1 62.84
1414 MW-2 109.66 926 TW4-1 51.67 1258 PIEZ-2 15.94
1015 MW-3 83.42 918 TW4-2 68.42 1253 PIEZ-3 36.21
1016 MW-3A 85.43 9015 TW4-3 44.89 952 PIEZ-4 50.71
924 MW-4 71.29 931 TW4-4 63.58 949 PIEZ-5 45.24
1432 MW-il 90.39 933 TW4-6 72.07
1419 MW-12 108.47 923 TW4-7 67.96
1426 MW-14 103.85 928 TW4-8 68.13
1424 MW-iS 106.5 914 TW4-9 54.24
1021 MW-17 77.18 909 TW4-10 56.39
1316 MW-18 71.29 921 TW4-1i 59.35
1311 MW-19 51.13 938 TW4-12 38.49
1505 MW-20 80.83 940 TW4-13 49.38
1445 MW-22 67.22 943 TW4-14 89.44
1417 MW-23 114.85 907 TW4-15 80.13
1407 MW-24 114.76 1007 TW4-16 65.7
1430 MW-25 76.14 1004 TW4-17 77.15
907 MW-26 80.13 1248 TW4-18 56.93
1331 MW 27 51.2 1150 TW4-19 83.63
1404 MW-28 77.8 905 TW4-20 95.35
1439 MW-29 102.76 1245 TW4-21 59.21
1437 MW-30 77.39 904 TW4-22 55.68
1435 MW-31 69.75 959 TW4-23 67.25
1004 MW-32 77.15 900 TW4-24 56.41
Comments
SCALE IN FEET
EXPLANATION
perched nrnnitnring well chewing
elenetien in feet end
teniporery perched mendering well
chewing clenches in feet emel
perched piezemeter chewing
sisnatien in feet end
perched nrenitnring well notched AprIl 2005
showing alenetien In feet ansi
tenrpnrary perched moerterung well metalled
April 20th chewing alenaline In test anti
temporary perched rneeilnring well eddied
May 2007 chewing apprenimata elenetien
in feet
//
//
//
//
//
//
//
//
//
NOTES Locations and elevations for TW4-23 TW4-24 and TW4-25 are
HYDRO
GEO
CHEM INC
KRIGED 2nd QUARTER 2009 WATER LEVELS
WHITE MESA SITE
ll/7t 8000/eugO9/wi0000.nri
Attachment
Steve Landau
From Steve Landau
Sent Monday August 31 2009 421 PM
To [e-mail]
Cc David Frydenlund
Subject 2nd Quarter Groundwater CSV Data
Attachments C09040844.csvgw.csv C090505 0.csvGW .csv C09050570.csvGW.csv
C09050941 .csvgw.csv C09060844.csvgw.csv
Dear Mr Finerfrock
Attached to this email is an electronic copy of quarterly and quarterly accellerated laboratory results for groundwater
monitoring conducted under the Groundwater Discharge Permit for the White Mesa Mill during the 2nd Quarter 2009 in
Comma Separated Value CSV format Monthly CSV data for the April and June samplings are attached as well
Yours truly
Steven Landau