DRC-2010-003272 - 0901a0688018d07a

Denlson Mines (USA) Corp.
1050 17t>i Street, Suite 950
Denver, CO 80265
USA
Tel: [phone]
Fax: [phone]
www.denisonmines.c6m
DENISO
MINES
Sent VIA Federal Express
May 19,2010
Mr. Dane L. Finerfrock
Co-Executive Secretary
Utah Water Quality Board
State of Utah Department of Environmental Quality
168 North 1950 West
Salt Lake City, UT 84114-4850
Re: Transmittal of 1st Quarter 2010 Ground Water IVIonitoring Report
Ground Water Quality Discharge Permit UGW370004 White Mesa Uranium Mill
Dear Mr. Finerfrock:
Enclosed are two copies of the White Mesa Uranium Mill Groundwater Monitoring Report for the
1st Quarter of 2010 as required by the Ground Water Quality Discharge Permit UGW370004, as well
as two CDs each containing a word searchable electronic copy of the report.
If you should have any questions regarding this report please contact me.
Yours very truly.
DENISON MINES (USA) CORP.
Jo Ann Tischler
Director, Compliance and Permitting
CC: Ron F. Hochstein
David C. Frydenlund
Harold R. Roberts
David E. Turk
White Mesa Uranium Mill
Groundwater Monitoring Report
State of Utah
Groundwater Discharge Permit No.UGW370004
1st Quarter
(January through March)
2010
Prepared by:
Denison Mines (USA)Corp.
Suite 950,1050 17th Street
Denver CO 80265
May 19,2010
TABLE OF CONTENTS
1.0 INTRODUCTION 1
2.0 GROUNDWATER MONITORING 1
2.1 Samples and Measurements Taken During the Quarter.1
2.1.1 Groundwater Compliance Monitoring 1
2.1.2 Accelerated Groundwater Monitoring 1
2.1.3 Background Well Monitoring 2
2.1.4 Parameters Analyzed 2
2.1.5 Groundwater Head Monitoring 3
2.2 Field Data 3
2.3 Laboratory Results -Routine Sampling 3
2.3.1 Copy of Laboratory Results 3
2.3.2 Regulatory Framework and Groundwater Background 4
2.4 Laboratory Results -Accelerated Monitoring 4
2.4.1 Copy ofLaboratory Results 4
2.4.2 Regulatory Framework and Groundwater Background 5
2.5 Depth To Groundwater and Water Table Contour Map 5
3.0 QUALITY ASSURANCE AND DATA VALIDATION 6
3.1 Field QC Samples 6
3.2 Adherence to Mill Sampling SOPs 7
3.3 Analyte Completeness Review 7
3.4 Data Validation 7
3.4.1 Field Data QNQC Evaluation 7
3.4.2 Holding Time Evaluation 8
3.4.3 Receipt Temperature Evaluation 9
3.4.4 Analytical Method Checklist 9
3.4.5 Reporting Limit Evaluation 9
3.4.6 Trip Blank Evaluation 9
3.4.7 QNQC Evaluation for Routine Sample Duplicates 9
3.4.8 Radiologies Counting Error and Duplicate Evaluation 9
3.4.9 Other Laboratory QNQC.10
4.0 CORRECTIVE ACTION REPORT 11
4.1 Identification and Definition ofthe Problem I1
4.2 Assignment of Responsibility for Investigating the Problem 11
4.3 Investigation and Determination ofCause ofthe Problem II
4.4 Determination ofa Corrective Action to Eliminate the Problem 12
4.5 Assigning and Accepting Responsibility for Implementing the Corrective 12
4.6 Implementing the Corrective Action and Evaluating Effectiveness 12
4.7 Verifying That the Corrective Action Has Eliminated the Problem 13
5.0 TIME CONCENTRATION PLOTS 13
6.0 ELECTRONIC DATE FILES AND FORMAT 13
7.0 SIGNATURE AND CERTIFICATION 13
II
Table I
Table 2
LIST OF TABLES
Summary of Well Sampling for the Period
Exceedances and Acceleration Requirements
INDEX OF TABS
Tab A Site Plan and Perched Well Locations White Mesa Site
Tab B Field Data Worksheets Quarterly Sampling
Tab C Field Data Worksheets Accelerated Monitoring
Tab D Quarterly Depth to Water
Tab E Laboratory Analytical Reports -Quarterly Sampling
Tab F Laboratory Analytical Reports -Accelerated Monitoring
Tab G Quality Assurance and Data Validation Tables
G-1 Field Data QNQC Evaluation
G-2 Holding Time Evaluation
G-3 Analytical Method Check
G-4 Reporting Limit Evaluation
G-5 Trip Blank Evaluation
G-6 QNQC Evaluation for Routine Sample Duplicates
G-7 QNQC Evaluation for Accelerated Sample Duplicates
G-8 Radiologies Counting Error and Duplicates Evaluation
G-9 QC Control Limits for Analyses and Blanks
Tab H Kriged Current Quarterly Groundwater Contour Map and Depth Data
Tab I Groundwater Time Concentration Plots
Tab J CSV Transmittal Letter
III
1.0 INTRODUCTION
This is the Routine Groundwater Monitoring Report,as required under Part LF.I ofState
of Utah Groundwater Discharge Permit No.UGN370004 (the "GWDP")for the 1st
quarter of 2010 (the "Quarter")for Denison Mines (USA)Corp's.("DUSA's")White
Mesa Uranium Mill (the "Mill").As required under Parts LE.I,LE.2 and LE.S of the
GWDP this Report includes all recorded field measurements and laboratory analyses for
well monitoring conducted during the Quarter.
2.0 GROUNDWATER MONITORING
2.1 Samples and Measurements Taken During the Quarter
A map showing the location of all groundwater monitoring wells,piezometers,existing
wells,chloroform contaminant investigation wells and nitrate contaminant investigation
wells is attached under Tab A.Groundwater samples and measurements were taken
during this reporting period (January through March),as discussed in the remainder of
this section.
2.1.1 Groundwater Compliance Monitoring
Table I provides an overview of all wells sampled during the current period,along with
the required sampling frequency applicable to each well during the current monitoring
period,the date samples were collected from each well,and the date(s)upon which
analytical data was received from the contract laboratory(ies).Table 1 also indicates
which sample numbers are associated with the required duplicates.
2.1.2 Accelerated Groundwater Monitoring.
As confirmed via email correspondence on February 16 and 17,2010,as a result of the
issuance of the modified GWDP on January 20,2010 (the "revised GWDP"),which sets
revised groundwater compliance limits ("GWCLs"),all requirements to perform
accelerated monitoring under Part LG.I of the previous GWDP ceased effective on
January 20,2010,and the effect of the issuance of the revised GWDP was to create a
"clean slate"for all constituents in all wells going forward.
This means that no accelerated monitoring was required under the revised GWDP for the
first quarter of 20 IO.Accelerated monitoring for subsequent quarters will depend on the
application of Part LG.I of the revised GWDP to results from groundwater samples
required to be taken in the first quarter of2010 and from any subsequent sample results.
However,the Mill environmental staff had commenced accelerated sampling of certain
wells for selected parameters,consistent with the previously-approved GWDP,prior to
DUSA's receipt of the revised GWDP on January 22,2010.The January accelerated
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effort commenced in early January,and continued through the last week of January,
when instructions to cease the program,based on the revised GWDP,reached the Mill's
sampling staff.Additional accelerated monitoring was performed in March 2010,before
the sampling staff finally shut down all pre-scheduled accelerated field activities.As a
result,accelerated sampling,while not required,was performed for 10 wells during this
quarter,and the resulting data has been included in this report.Specifically,accelerated
sampling was performed,and results reported,for the wells indicated below and in Table
1.
DUSA and the Mill have a substantial system in place to manage the ever-growing
groundwater monitoring program requirements.The system did not respond instantly to
the changes in monitoring requirements indicated by the revised GWDP received in
January 2010.As a result,the Mill performed unnecessary oversampling and re-
sampling this period as follows:
•Some wells which were no longer required to be sampled on the accelerated
schedule were sampled.These consist of MW-14,MW-18,MWI9,MW-23,
MW-24,MW-26,MW-27,MW-28,MW-30,MW-32.
•The procedures in place to check and resample wells which do not meet the field
Quality Assurance ("QA")requirements (for stable parameters,missed holding
times,etc.)were activated even for wells which did not need to be sampled (and
therefore did not need to be re-sampled to correct QA issues).These wells were
MW-18 and MW-27.
•Some accelerated samples were analyzed for a full suite of analytes rather than
accelerated analytes.These wells were:MW-24,MW-27,MW-28,and MW-30.
2.1.3 Background Well Monitoring
A new requirement was added to the GWDP on March 17,2008,which required the Mill
to begin quarterly sampling of wells MW-20 and MW-22 to develop eight quarters of
background data.A background report for MW-20 and MW-22 will be submitted on
June I,2010.These two wells will continue to be monitored on a quarterly basis until
such time as the State of Utah Division of Radiation Control ("DRC")determines
otherwise.Table 1 indicates the sampling dates and the dates DUSA received laboratory
data for these wells.
2.1.4 Parameters Analyzed
All routine quarterly groundwater monitoring samples were analyzed for the parameters
listed in Table 2 and Part I.E.l.c)2)ii of the GWDP.The accelerated monitoring samples
were analyzed for the more limited specific parameters described in subsequent sections
of this report,except as noted above.
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2.1.5 Groundwater Head Monitoring
Depth to groundwater was measured in the following wells and/or piezometers,pursuant
to Part LE.2 ofthe GWDP:
•The quarterly groundwater compliance monitoring wells.
•Existing monitoring well MW-4 and all of the temporary chloroform investigation
wells.
•Piezometers -P-I,P-2, P-3,P-4 and P-5.
•Nitrate monitoring wells.
•In addition to the above,depth to water measurements are routinely observed m
conjunction with sampling events for all wells sampled during quarterly and
accelerated efforts,regardless ofthe sampling purpose.
All well levels used for groundwater contour mapping were measured and recorded
within 5 calendar days of each other as indicated by the measurement dates in the
summary sheet under Tab D.
2.2 Field Data
Attached under Tab B are copies ofall field data sheets recorded in association with the
quarterly effort for the groundwater compliance monitoring wells referred to in paragraph
2.1.1,above.Sampling dates are listed in Table I.Tab B also includes field data sheets
for background wells MW-20 and MW-22,which continue to be monitored quarterly.
As discussed in Section 2.l.2,no accelerated sampling was required this period.
However,some accelerated monitoring samples were collected before the mill sampling
staff was able to respond to revised GWDP requirements.Attached under Tab Care
copies of all field data sheets recorded in association with accelerated monitoring and
sampling efforts during the quarter.
2.3 Laboratory Results -Routine Sampling
2.3.1 Copy of Laboratory Results
All analytical results are provided by one of the Mill's two contract analytical
laboratories Energy Laboratories ("EL")or America West Analytical Laboratories
("AWAL").
Table I lists the dates when analytical results were reported to the QA Manager for each
well.
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Results from analysis of samples collected for the Ist Quarter under the GWDP (i.e.,all
regular quarterly samples),as well as results from background wells MW-20 and MW-
22,which continue to be sampled quarterly,are provided in Tab E.Also included under
Tab E are the results of analyses for duplicate samples for this sampling effort,as
identified in Table I.
The Laboratory Report date for samples collected for the January accelerated sampling
(i.e.,semi-annual accelerated to quarterly and quarterly accelerated to monthly)are
provided under Tab F.Because the wells in the GWDP sampling program have been
equipped with dedicated pumps since the November,2007 sampling,rinsate samples are
no longer collected.As discussed in Section 2.1.2,above,accelerated monitoring was
not required for this period.
Copies of laboratory QNQC Summaries are included with the reported data under their
corresponding Tabs.
2.3.2 Regulatory Framework and Groundwater Background
Under the revised GWDP,background groundwater quality has been determined on a
well-by-well basis,as defined by the mean plus second standard deviation concentration
or the equivalent.New GWCLs that reflect this background groundwater quality have
been set for all monitoring wells in the revised GWDP.These new GWCLs were in
effect for sampling required under the revised GWDP during the current 1st Quarter
monitoring period.
Exceedances ofthe January 2010 GWCLs for the 1st quarter of2010 quarterly sampling
results are listed in Table 2 for sampling required under the revised GWDP.
It should be noted,however,that,because the GWCLs have been set at the mean plus
second standard deviation,or the equivalent,un-impacted groundwater would normally
be expected to exceed the GWCLs approximately 2.5%of the time.Therefore,
exceedances are expected in approximately 2.5%of all sample results,and do not
necessarily represent impacts to groundwater from Mill operations.
2.4 Laboratory Results -Accelerated Monitoring
2.4.1 Copy ofLaboratory Results
The analytical results for the accelerated monitoring ofthe various constituents in certain
monitoring wells for the quarter are provided at Tab F.
As discussed in Section 2.1.2 above,accelerated sampling which was not required for QI
2010 under the revised GWDP,was performed for 10 wells.In addition,the following
wells were re-sampled to correct field QA concerns,even though neither the original
samples,nor the re-samples,were required.
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MW-l8 was originally sampled in January 2010.During the January sampling effort,the
well did not achieve stable Eh within a Relative Percent Difference (RPD)of 10%.The
well was resampled in March 2010,to provide samples collected under fully stabilized
conditions.Data from both efforts is included under Tab F.
MW-27 was sampled in January 2010.Samples were received at EL beyond the
permitted holding time for measurement oflab pH and TDS.MW-27 was re-sampled in
March 2010 and samples were sent to EL for analysis of these two missing parameters.
Data from both sampling events is included under Tab F.
2.4.2 Regulatory Framework and Groundwater Background
As discussed in Section 2.1.2,above,as a result of the issuance ofthe revised GWDP on
January 20,2010,which sets revised GWCLs,all requirements to perform accelerated
monitoring under Part LG.!ofthe previous GWDP ceased effective on January 20,2010,
and the effect ofthe issuance ofthe revised GWDP was to create a "clean slate"for all
constituents in all wells going forward.
This means that no accelerated monitoring was required under the revised GWDP for the
first quarter of2010.Accelerated monitoring for subsequent quarters will depend on the
application ofPart LG.l ofthe revised GWDP to results from groundwater samples
required to be taken in the first quarter of2010 and from any subsequent sample results.
Also,as discussed above,the Mill environmental staffhad commenced accelerated
sampling in early January 2010,and the accelerated sampling effort continued until
March 2010,after DUSA's receipt ofthe revised GWDP on January 22,2010.As a
result,accelerated sampling,while not required,was performed for six wells during this
quarter
The lower part ofTable 2 lists exceedances identified in the non-required accelerated
sampling set.These exceedances resulted from comparison with the former GWCLs
from the March 14,2008 previous GWDP which has been superseded by the revised
GWDP.As a result,accelerated sampling was not required under the revised GWDP.
These results are presented in this report for informational purposes and should not be
considered exceedances under the revised GWDP.
2.5 Depth To Groundwater and Water Table Contour Map
As stated above,a listing of groundwater level readings for the Quarter (shown as depth
to groundwater in feet)is included under Tab D.The data from tab D has been
interpreted (kriged)and plotted in a water table contour map,provided under Tab H.
The water table contour map provides the location and identity of all of the wells and
piezometers 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
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delineate groundwater flow directions observed during the Quarter's sampling event are
displayed on the map.
3.0 QUALITY ASSURANCE AND DATA VALIDATION
The Mill QA Manager,which for the purposes of this Report was DUSA's Director,
Compliance and Permitting,performed a QNQC review to confirm compliance of the
monitoring program with requirements of the White Mesa Uranium Mill Groundwater
Monitoring Quality Assurance Plan ("QAP").As required in the QAP,data quality
assurance includes preparation and analysis ofquality control samples in the field,review
of field procedures,an analyte completeness review,and quality control review of
laboratory data methods and data.Identification of field QC samples collected and
analyzed is provided in Section 3.1.Discussion of adherence to Mill sampling SOPs is
provided in Section 3.2.Analytical completeness review results are provided in Section
3.3.The steps and tests applied to check laboratory data QNQC are discussed in
Sections 3.4.4 through 3.4.9 below.
The Analytical Laboratories have provided summary reports of the analytical quality
control/quality assurance (QNQC)measurements necessary to maintain conformance
with NELAC certification and reporting protocol.The analytical laboratory QNQC
Summary Reports,including copies of the Mill's Chain of Custody and Analytical
Request Record forms for each set of Analytical Results,follow the analytical results
under Tabs E and F.Results of review of the laboratory QNQC information are
provided under Tab G and discussed in Section 3.4,below.
3.1 Field QC Samples
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:
Two duplicate samples were collected during routine quarterly sampling as indicated in
Table 1.The QC samples were sent blind to the analytical laboratory and analyzed for
the same parameters as permit-required samples.
Accelerated sampling was not required during this period.Accelerated sampling was
stopped before the accelerated sampling was completed and before any duplicates were
collected.As a result,no duplicates were analyzed for the accelerated sample set.As
described in Section 2.1.2,neither the accelerated sampling,nor any accelerated
duplicates,were required during this period.
Two trip blanks were provided by Energy Laboratories and returned and analyzed with
the quarterly monitoring samples.
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One trip blank was provided by Energy Laboratories and returned and analyzed with the
accelerated monitoring samples.
No trip blanks were sent or analyzed by AWAL.The QA manager identified midway
through the first quarter sampling program that the Mill sampling crew had not been
instructed to receive and ship distinct trip blanks to AWAL to accompany the
tetrahydrofuran samples.Both the field staff and AWAL have been instructed that
shipment and analysis of trip blanks for the THF analysis program are required by the
QAP.This issue has been corrected,and the practice ofshipping,tracking,and analyzing
separate trip blanks for EL and AWAL labs is already in place.The second quarter
sampling program,already underway,includes separate trip blanks for the EL volatiles
sampling and the AWAL tetrahydrofuran sampling.
3.2 Adherence to Mill Sampling SOPs
On a 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 QAP were being adhered to and that the SOP's were implemented,except as
described below.
3.3 Analyte Completeness Review
All analyses required by the GWDP for routine quarterly samples and background well
samples for the period were performed.In addition,accelerated sampling,while not
required,was performed for some wells during this quarter,as described in Section 2.1,
above.The accelerated parameters are identified in Table 2.
3.4 Data Validation
The QAP and GWDP identify the data validation steps and data quality control checks
required for the groundwater monitoring program.Consistent with these requirements,
the QA Manager performed the following nine evaluations:a field data QA/QC
evaluation,a holding time check,an analytical method check,a reporting limit check,a
trip blank check,a QAlQC evaluation ofroutine sample duplicates,a QA/QC evaluation
of accelerated sample duplicates,and a gross alpha counting error evaluation.Each
evaluation is discussed in the following sections.Data check tables indicating the results
ofeach test are provided under Tab G.
3.4.1 Field Data QA/QC Evaluation
The QA Manager performs a review of all field recorded parameters to assess their
adherence with QAP requirements.The assessment involved review of two sources of
information:the Field Data Sheets and the Quarterly Depth to Water summary sheet.
Review of the Field Data Sheets addresses well purging volumes and stability of five
parameters:conductance,pH,temperature,redox potential,and turbidity.Review ofthe
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Depth to Water data confirms that all depth measurements were conducted within a five-
day period.The results ofthis quarter's review are provided in Table G-I under Tab G.
Based upon this review,all sampled locations conformed to the QAP requirement to
evacuate two well casing volumes before sampling except for accelerated sampling of
MW-24.MW-24 was evacuated to dryness before two casing volumes could be pumped.
As discussed above,accelerated sampling ofMW-24 was not required this period.
During review of the field data sheets,it was observed that sampling personnel
consistently recorded depth to water to the nearest 0.0 I foot,with the exception of one
well.Depth to water before purging in MW-22 was measured to the nearest 0.01 foot,
but the measurement was inadvertently rounded and reported to the nearest 0.1 foot.
All field parameters for all wells were within the required RPD,except as follows:
•All turbidity measurements were less than 5 NTU for both the quarterly wells and
the accelerated wells sampled.Turbidity measurements prior to sampling were
within a 10%RPD for all quarterly sampling wells except MW-30.Turbidity
measurements were within a 10%RPD for all accelerated sampling wells except
MW-19,MW-24,and MW-32.The RPD for turbidity met the QAP requirement
in all other wells primarily because the turbidity reading in all wells except MW-
22 was zero in every value compared.DUSA's letter to DRC ofMarch 26,2010
discusses further why turbidity does not appear to be an appropriate parameter for
assessing well stabilization.
•DRC has commented in their letter of February 17,2010 and closeout phone call
of April 5,2010 that the RPD calculation results in previous groundwater and
chloroform reports have been in error.The RPD calculation has been automated,
verified,and corrected as ofthis quarter's review.Field data sheets indicated that
one parameter had not equilibrated in one well based on the calculated RPD.The
Eh for the January accelerated sampling of MW-18 was not stabilized based on
the RPD calculation result.MW-18 was inadvertently sampled under the old
permit requirements,on an accelerated schedule on January 27,2010,after the
revised GWDP of January 20,2010 removed this well from the accelerated
monitoring list.Data from sampling of this well has been provided for
informational purposes only.
All other field parameters (conductance,pH,and temperature)for all wells were within
the required RPD for both quarterly and accelerated sampling.
3.4.2 Holding Time Evaluation
QAP Table I identifies the method holding times for each suite of parameters.Sample
holding time checks are provided under Tab G.All samples were received and analyzed
within the required holding time.
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3.4.3 Receipt Temperature Evaluation
Chain ofCustody sheets were reviewed to confirm compliance with the QAP requirement
in QAP Table 1 that samples be received at 6°F or lower.All samples were received
within the required temperature limit.
3.4.4 Analytical Method Checklist
All analytical methods reported by both laboratories were checked against the required
methods enumerated in Table 1 of the QAP.The review identified the following
difference.QAP Table 1 calls for analysis for all heavy metals by Method E200.8,
except iron,for which the Table requires Method E200.7.Iron,in both the quarterly
samples and the non-required accelerated samples,was analyzed by the required Method
E200.7 but initially mis-reported as Method 200.8.The lab reports have been reissued to
reflect the actual (correct)method used,Method 200.7.
It is recommended that the QAP be improved and updated to accommodate this
methodology by revising Table 1.Potentially,to accommodate ongoing improvement in
technology and methodology,the entire Table 1 and the Chloroform Investigation
Appendix table should be revised to require the method number "or its equivalent or
updated EPA or NRC approved method."
3.4.5 Reporting Limit Evaluation
All analytical method reporting limits reported by both laboratories were checked against
the reporting limits enumerated in the QAP Table 1.All analytes were measured and
reported to the required reporting limits except as noted in Section 3.4.9.
3.4.6 Trip Blank Evaluation
All trip blank results were reviewed to identify any blank contamination.All trip blank
results were less than detection level for all VOC analytes.
01 rinse water is no longer used in the groundwater sampling program,and 01 water is
no longer analyzed with this sampling effort.
3.4.7 QAlQC Evaluation for Routine Sample Duplicates
All parameter results were within a 20%RPO for comparison of MW-31 and its
duplicate,MW-65.Results ofthe RPO test are provided under Tab G.
3.4.8 Radiologies Counting Error and Duplicate Evaluation
Section 9.14 of the QAP requires that all gross alpha analysis reported with an activity
equal to or greater than the GWCL,shall have a counting variance that is equal to or less
than 20%of the reported activity concentration.An error term may be greater than 20%
9
of the reported activity concentration when the sum of the activity concentration and
error term is less than or equal to the GWCL.
Results of radiologic sample QC are provided under Tab G.All radiologic samples
except MW-32 met the counting error requirement.Within rounding error,MW-32's
results also approximately met the counting error requirement.As discussed in Section
2.1,above,the sampling of MW-32 was not required this period.Analytical data,and
data QC testing for this well,has been provided for informational purposes only.
3.4.9 Other Laboratory QAlQC.
Section 9.2 of the QAP requires that the laboratory's QAlQC Manager check the
following items in developing data reports:(1)sample preparation information is correct
and complete,(2)analysis information is correct and complete,(3)appropriate Analytical
laboratory procedures are followed,(4)analytical results are correct and complete,(5)
QC samples are within established control limits,(6)blanks are within QC limits,(7)
special sample preparation and analytical requirements have been met,and (8)
documentation is complete.In addition to other laboratory checks described above,
DUSA's QA manager rechecks QC samples and blanks (items (5)and (6»to confirm
that the percent recovery for spikes and the relative percent difference for spike
duplicates are within the method-specific required limits,or that the case narrative
sufficiently explains any deviation from these limits.Results of this quantitative check
are provided under Tab G.All lab QAlQC results from both EL and AWAL samples for
compounds regulated under the GWDP met these requirements.There were QC results
for non-regulated compounds which did not meet acceptance limits,as identified in Table
G-IO.
There were no qualifiers attached to the AWAL tetrahydrofuran data.DUSA required
AWAL to reissue earlier reports to include a case narrative,which was missing from the
first transmittal.The carat (A)associated with the tetrahydrofuran result on each sheet
indicates that the data had been previously reported.
Twelve sets of sample results (11 wells and one duplicate)had the reporting limit raised
for at least one analyte due to matrix interference and/or sample dilution.In all cases the
reported value for the analyte was substantially higher than the increased detection limit.
The check samples included at least the following:a method blank,a laboratory control
spike,a matrix spike and a matrix spike duplicate,or the equivalent,where applicable.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.
•Post digestion spike duplicates are equivalent to matrix spike duplicates.
•For method E900.1,used to determine gross alpha,a sample duplicate was
used instead ofa matrix spike duplicate.
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All qualifiers,and the corresponding explanations reported in the QAlQC Summary
Reports for any ofthe check samples for any of the analytical methods were reviewed by
the QA Manager.
The information from the Laboratory QAlQC Summary Reports indicates that the RPDs
for MS/MSDs were within acceptable laboratory limits for all regulated compounds
except naphthalene (25%),as indicated in Table G-lO.The RPD for naphthalene does
not affect the quality or usability ofthe data because the RPD above the acceptance limits
of 20%is indicative ofa matrix interference.The samples spiked for the MS/MSD
analyses were not collected at the Mill,and as such the matrix interference is not
applicable to the Mill samples reported herein.
The RPD for one non-regulated compound also did not meet acceptance limits.
4.0 CORRECTIVE ACTION REPORT
Necessary corrective actions identified during the current monitoring period are described
below.,in accordance with Part LF.l.e ofthe GWDP
4.1 Identification and Definition of the Problem
The problems identified were:
•Turbidity RPDs exceeded 10%for one quarterly sampling well,and four non-
required accelerated sampling wells.
•Trip blanks were shipped and analyzed for EL VOC samples,but not for AWAL
THF samples.
4.2 Assignment ofResponsibility for Investigating the Problem
The problems have been investigated by the QA Manager.
4.3 Investigation and Determination of Cause of the Problem
Turbidity
Data indicate that it may not be feasible to achieve both a turbidity level of less than 5
NTU and a stabilized turbidity between any two measurements within 10%RPD in every
well.Discussions are underway with DRC to address the fact that it may not be
appropriate or feasible to achieve consistent turbidity levels of 5 NTU in the Mill's
groundwater program wells under the current evacuation scheme,and that other well
purging approaches,such as micro-purging,may be more appropriate.A letter report
addressing modification of monitoring methods relative to turbidity issues,submitted by
DUSA to DRC on March 26,2010,is currently under review.
II
Trip Blanks
After discussions with the Mill sampling staff,the QA Manager determined that the
sampling crews believed the blank bottles received from and returned to EL for analysis
adequately represented both the EL and AWAL sampling trips,and that it was not
necessary to ship and analyze two sets of blanks to two different laboratories for the same
sampling event.The root cause was determined to be inadequate instruction of the
sampling crews,and a resultant lack ofunderstanding regarding trip blanks.
4.4 Determination of a Corrective Action to Eliminate the Problem
Turbidity
A letter report addressing modification of monitoring methods relative to turbidity issues,
submitted by DUSA to DRC on March 26,2010,is currently under review by DRC.
DUSA is currently evaluating the suitability of turbidity,as well as other parameters,in
determining stabilization of monitoring wells,and is preparing proposed changes to the
QAP to address these issues.
Trip Blanks
During the first quarter sampling program,the QA Manager provided:
•Instruction to the sampling crews regarding trip blanks,and
•Instructions to AWAL to ship VOC blank bottle sets to the Mill immediately,and
to include analysis ofblanks for tetrahydrofuran in their analytical scope ofwork.
AWAL trip blank bottle sets were received at the Mill after completion of the first quarter
sampling but prior to initiation of second quarter sampling.Trip blank sets for both EL
and AWAL have been included in the analyses for the second quarter samples.
4.5 Assigning and Accepting Responsibility for Implementing the Corrective
Action
It will be the responsibility ofthe Director,Compliance and Permitting to implement both
corrective actions.
Development of recommendations and QAP changes to address turbidity are already
underway.The corrective action for multiple trip blanks to both laboratories has already
been implemented.
4.6 Implementing the Corrective Action and Evalnating Effectiveness
Implementation of the corrective action for turbidity will follow development and DRC
approval of an action plan for well purging,as discussed in Section 4.3.In accordance
with Part I.E.l.a of the GWDP,the corrective action for trip blanks has already been
implemented.
12
4.7 Verifying That the Corrective Action Has Eliminated the Problem
Turbidity
Verification will occur following DRC review and approval ofthe submitted proposal for
turbidity.
Trip Blanks
Verification will consist oftwo steps.Confirmation that both EL and AWAL trip blanks
have been shipped for analysis has already occurred.Verification will be complete upon
receipt and review ofsecond quarter analytical results from both labs.
5.0 TIME CONCENTRATION PLOTS
Time concentration plots for each monitoring well for the following constituents:
chloride,fluoride,sulfate,and uranium,are included under Tab 1.
6.0 ELECTRONIC DATE FILES AND FORNIAT
DUSA has provided to the Executive Secretary electronic copies of all laboratory results
from groundwater quality monitoring conducted during the Quarter in Comma Separated
Values (CSV),from the EL data;and in Electronic Data Deliverable (EDD)format from
the AWAL data.Copies ofthe transmittal e-mails are included under Tab J.
7.0 SIGNATURE AND CERTIFICATION
This document was prepared by Denison Mines (USA)Corp.on May 19,2010.
DENISON MINES (USA)CORP.
By:
David .rydenlund
Vice President,Regulatory Affairs and Counsel
13
Certification:
I certify,under penalty of law,that this document and all attachments were
prepared under my direction or supervision in accordance with a 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.I am aware that there are
significant penalties for submitting false information,including the possibility offine and
imprisonm t fo knowing violations.
Davi .ryd nlund
Vice President,Regulatory Affairs and Counsel
Denison Mines (USA)Corp.
14
Table 1: Summary of Well Sampling for the 2010 Quarter 1 Period
Well
Normal
Frequency
Purpose for sampling this
quarter Date of Field Data Date of Lab Report
MW-11 Quarterly Quarterly-Regular 2/10/2010 4/26/2010 (3/9/2010)
MW-14 Quarterly Accelerated* 1/13/2010 4/26/2010
MW-14 Quarterly Quarterly-Regular 2/2/2010 4/26/2010 (3/9/2010)
MW-18 Semi-annually Accelerated* 1/27/2010 2/10/2010
MW-18 Semi-annually Accelerated Re-sample* 3/22/2010 4/1/2010
MW-19 Semi-annually Accelerated* 1/26/2010 2/10/2010
MW-20 Quarterly Background 2/11/2010 4/26/2010 (3/9/2010)
MW-22 Quarterly Background 2/8/2010 4/26/2010 (3/9/2010)
MW-23 Semi-annually Accelerated* 1/19/2010 Not analyzed**
MW-24 Semi-annually Accelerated* 1/19/2010 5/4/2010
MW-25 Quarterly Quarterly-Regular 2/3/2010 4/26/2010 (3/9/2010)
MW-26 Quarterly Accelerated* 1/12/2010 4/26/2010
MW-26 Quarterly Quarterly-Regular 2/2/2010 4/26/2010 (3/9/2010)
MW-27 Semi-annually Accelerated* 1/18/2010 5/4/2010
MW-27 Semi-annually Accelerated Re-sample* 3/15/2010 3/25/2010
MW-28 Semi-annually Accelerated* 1/19/2010 5/4/2010
MW-30 Quarterly Quarterly-Regular 2/9/2010 4/26/2010 (3/9/2010)
MW-30 Quarterly Accelerated* 1/20/2010 5/4/2010
MW-31 Quarterly Quarterly-Regular 2/9/2010 4/26/2010 (3/9/2010)
MW-32 Semi-annually Accelerated* 1/12/2010 4/26/2010
MW-65 1 per Batch Duplicate of MW-31 2/9/2010 4/26/2010 (3/9/2010)
MW-65 1 per Batch Duplicate of MW-32 1/12/2010 4/26/2010
Notes:
Date in parenthesis depicts the date that tetrahydrofuran was reported from American West Analytical Laboratories.
All other constituents were reported from Energy Laboratories.
* No accelerated sampling was required for the first quarter of 2010. As discussed in Section 2, some accelerated
sampling was inadvertently performed. Accelerated data is included in this report for information purposes only.
** A sample of MW-23 was taken, but was not required. Sample was not sent to laboratory for analysis.
Table 2: Exceedances and Acceleration Requirements
Monitoring Well (Water Class) Constituent Exceeding GWCL GWCL
(µg/L)
Sample
Result (µg/L)
Sample Frequency Accelerated
Frequency
Begin
Accelerated
Sampling
Manganese 131.29 134 Quarterly Monthly May
Tetrahydrofuran 11.5 12 Quarterly Monthly May
MW-14 (Class III) (2/2/2010) Field pH (S.U.) 6.5 - 8.5 6.46 Quarterly Monthly May
Nitrate + Nitrite (as N) 0.62 1.3 Quarterly Monthly May
Uranium 41.8 58.7 Quarterly Monthly May
Chloroform 70 700 Quarterly Monthly May
Chloride (mg/L) 58.31 72 Quarterly Monthly May
Field pH (S.U.) 6.74 - 8.5 6.59 Quarterly Monthly May
MW-30 (Class II) (2/9/10)Nitrate + Nitrite (as N) 2.5 16.1 Quarterly Monthly May
MW-31 (Class III)Nitrate + Nitrite (as N) 5 21.7 Quarterly Monthly May
Manganese 400 1990 Quarterly Monthly NA
Uranium 15 65.4 Quarterly Monthly NA
Thallium 0.5 3.32 Semi-Annually Quarterly NA
Uranium 7.5 47.2 Semi-Annually Quarterly NA
Thallium 0.5 3.91 Semi-Annually Quarterly NA
Uranium 7.5 49 Semi-Annually Quarterly NA
Nitrate + Nitrite (as N) 2.5 2.8 Semi-Annually Quarterly NA
Thallium 0.5 0.56 Semi-Annually Quarterly NA
Uranium 7.5 7.56 Semi-Annually Quarterly NA
Manganese 400 1290 Quarterly Monthly NA
Uranium 15 58.6 Quarterly Monthly NA
Chloroform 35 1500 Quarterly Monthly NA
Dichloromethane (Methylene
Chloride)
2.5 32 Quarterly Monthly NA
Notes:
1. GWCL values are taken from January 20, 2010 revised GWDP.
2. GWCL values are taken from 2008 previous GWDP.
MW-18 (Class III) (1/27/10)
MW-18 (Class III) (3/22/10)
MW-19 (Class III)
MW-26 (Class III)
Required Quarterly Sampling Wells1
MW-14 (Class III) (1/13/2010)
MW-11 (Class II)
MW-26 (Class III)
Non-required Accelerated Wells2
INDEX OF TABS

Tab A Site Plan and Perched Well Locations White Mesa Site
Tab B Field Data Worksheets Quarterly Sampling
Tab C Field Data Worksheets Accelerated Monitoring
Tab D Quarterly Depth to Water
Tab E Laboratory Analytical Reports – Quarterly Sampling
Tab F Laboratory Analytical Reports – Accelerated Monitoring
Tab G Quality Assurance and Data Validation Tables
G-1 Field Data QA/QC Evaluation
G-2 Holding Time Evaluation
G-3 Analytical Method Check
G-4 Reporting Limit Evaluation
G-5 Trip Blank Evaluation
G-6 QA/QC Evaluation for Routine Sample Duplicates
G-7 QA/QC Evaluation for Accelerated Sample Duplicates
G-8 Radiologics Counting Error and Duplicates Evaluation
G-9 QC Control Limits for Analyses and Blanks

Tab H Kriged Current Quarterly Groundwater Contour Map and Depth Data
Tab I Groundwater Time Concentration Plots
Tab J CSV Transmittal Letter

Tab A
Site Plan and Perched Well Locations White Mesa Site

PIEZ·3•
TWN·15~
OTW4-4OTW4•14
TW4.23 OTW4-6l:f
OTW4.lfbTW4-11 OTW4-l3
TW4'7~-8
OTW4·1
PIEZ·S•
33
MW·17•
CELL NO.2
CELL NO.1
UW·16•
UW·+
TWN·14~
II UWoOl TWN·1~•II
II TWN·~
II MW·18 TWN-6~•II PIEZ·1•II TW~8II TWN·8~UW·18
Y •
I.TWN·18~
II TWN·7~
II TWN-3~/L ((PIEZ·2 (-•"
UW·2 "'=====f~~?~~~5Efi~iF=======4-P"",,=----1rr=;-t-=--I----~t:02---=.?~~;I;~~w~.2~~;;;~;;;~l:f~~~:U\002 TW4-22 TW4·20 OTW4.5
U ·26 TW4-lf>TW4-9oOTW4-3 OTW4·12
TWN·l1~
PROPERTY
BOUNDARY
FIGURE
H:1718000/feb1O/welloc.srf
UW·22•II
//
//
//
//
//
//
//
//
//
//
SITE PLAN
AND PERCHED WELL LOCATIONS
WHITE MESA SITE
T38S
T37S
wildlife pond
APPROVEO
SJS
HYDRO
GBO
-CHEM,INC.
3000
<>TWN·1 temporary perched nltrete
monitoring well
UWo03•
MW·2Q•
SCALE IN FEET
EXpLANADON
perched monitoring well
temporary perched monitoring well
perched piezometer
perched monitoring well
installed April,2005
temporary perched monitoring
well installed April,2005
temporary perched monitoring well
Installed May,2007
o
MW·20•TW4-19o
PlEZ·1e
UW·31...
TW4-20-¢-
TW4-23~

Tab B
Field Data Worksheets Quarterly Sampling

MiiI -iGroUliWlwaiW.jIj'iSc!l@rg"lPmIiiii
aJron1Jl~m!".$MO'AililllFiUlg
!QwJi)i,y AS{J@FalireJl'lllkl(QAJI')
)1)2''':2.25.117 llI"visiol]:2
A'1!"1l'AC~l!
mIDI'J!'lE MJlimA ~lMIJ![,!L
1FJIJE!LIDJDATA W(f})~,Jii'@RG1!il(f})l!JNIDJ WA'Jrg
DescripltUOIIJ (JfSzimplilig JElVo'lllt:/S'"C)....cite ~~;••,I"!A}a+rc WIO
')i(~l!l#~t~~.,("Ii,,''••,"",.",""',
LoclltffOIi (welD ili_J,__'"","I""W.::,'....1.11'--'N~ii\e iilirl!Miiiillis :Good}l~I XU
Date llIld'lf'imefor ~9,-\0 •:;<0to ,liJIJd~IftIJI)~~~g(i~differeIiO ',
.·r f;;'>,;,·:,:,~;<:J:),~<i';}E-'t";'",:..",t';'.,i;~1\\):."'iti}~~,Sj~Gi,~:¥;J{;;:',
'Well lP'm)giDlgEqiiip ttTOOiI:tiWiip or ~lIiiilleJr "!lV:~I!i,~~iJIp (ifotliler~nJJBiellJlJel)CHI Q
S~lnilg]8l1elll Q".A<rI~tZt....'!',,,..h p
pHBiJJffer 7.0_-"---",-,.,,,,0_-.,.,.7""-'-"'-Jl'~'~.h1)R~;~~::;~!.'::~<.\i:O'C;:;'~·,,;:,"t·,,:.
Speeific CODlduc,lOOce_,~.!.,q:.,:q__uMIj[O'S(!lil!:.,!Ylr~¥i~~~~tit.iel)iWi?:<~:::.'::;~,~":,::;,:,;..",.,q.
\r~f!~'--l..13-=7'.Hj::;.(,L-_~_..,
~ox Potential {IlI1)"f'.....wH..!,.7..:0 --
t,"
.'
;','
~ime:lipC>Gal ~~)-I3.4
COlidtictalioo_:::;;::2.""'Z.;:;b,..L'l _
jlHl'--__--'7-'-Y+I _
Tempe,l'amre._J..14""'..::.;'J..:...!'1 _
Redox lP'orentiai (Eh),_4...;.·'_')."'9 _
T"rb:a:t-a _---'0"'-'_
pH 7.Y1
TeJiilijlOOitllre:""·:...·..J1L:!4Lc,L~13~_
~(lil:Potential (Eh)e.-::.3...:,7".:1:........_
""'",rb:d:+~0
14.'\1
o
l\lIiiJI-iGr!J)i!IiiIllIlV'J1lieiflIlisc!!arg"'om,
Oroaml_MlIlOitoOOg
Qmilily.!Wswt'Jl1£e PlM (QAlP')
lIlare:H.fUt6 lltellisi!J)ER:j
:
'JI'RRibili!ii:Y._·-,--__
NWlmlJe~Illf clIIJimlg 1I1llluiiliils eWlcWited (lhiill,etiliiui tllrij)-,,-,;;'...:'-'-_-'-,..-_
J[fweil evooWl.!l!~to dryness,llumber ofg~jt~(jiYatil~~:J!.·i1i'-·'''-'_
Mini -Gj,IIInIDlruwawrDJsc!'Q,ge JPeKJmii,
IiwMooWawr l\1!mJJHOOrJ"g
!QM!lllJij/ASSMJrBi!CeJP'lmi (QAiP)
A'J/"II'iMCJllII.\/JllEJ:1'1!'n
WI!1HIl!'1!'1E lMIJEl!lA WMlJ!lIlMI MillJLIL
JFlIIE!LllD llM'1!'A W([))JID(.slBJ]EjE'JI'm~GllW)1IJNJID WArmDescrllp~iMofS~~pii1!gEwell!:iliMac*~~~~l!~o,n.~\1.&rw.A ~<Lte
JLocalRoli (welRiII_)MIN ILj '.Nliilila~J nmtiliiil "'"T,""'n,r 1-10 if :.L 't 1.H
Dare Illid rimeforPurgi1!gH3-d-OIO .~~;~~~j~g(if difrerelll}__._
Wein J!>iBrgiilg JE!!J!iiii»!lJj~'~UiiilnPllr _li:i~ii~r '1w.~It~~p (ifll!lier!lim JBlellliet)0 E C\......-,-
~..!(,
JDep!li
Tem~,';~mre"'''",','\~1 b.,,"<'._."'''.'..'::':;',,,;,,•._<./,.,~.~,.J-)'
Redoxporentilii~)'Ll3CI~-,:..'"t'<;>.,...•~__LX::'<_:,.'Y<-·"·:',::;('.,;.;_",",'.".",:~_,-4.:__%"'_,..~.-!----
Turbidity 0
GlIU'Ui:ge,d J.0',K
Conductance 3i""i_'?:>.L-_
pH G.::&..
Tempemtllre,---,-14..1.'""(J,)...J9L..-_
1.:1·..,.....RedOK Poren,ial (EIi},_-""t7>::"-.=c.-_
T",..hitl.;.\.~0
lP'~~l;vY,'~AH~~Ft~.in $~1X!P1illg,jBvent .lAiN :J,f,
rI':1!)ijl,~(,,1)O';<;,;",,',,'Y':9.',:;C:"''''!
Turbidity ~...!.Q-,--__-,---
GmI.PUrged
COildi!C!lllice,__=3<-q,,-I,-=3~'_
pH'--,----'b""·-1Y'd--=------
Temperntille,_---'Ic..:Yc:..,D::..~""-_
P,Mox.Potential (Eh},_3~g-,q,--_
T ",~b ,V\;+~0,"
i.....
"~''.',,.,
/
'.'
•-([i)moo!ilwaieifJ!)j8C~"~ge iP'ern,
iJwMwllWllWi'MmliroriE!g
QiillliiyA!lsmJfllllice If'lo@(QAJP')
Th[lblliillly_-_Th~i!l1ifLY.:":"=======__
Flow lR!lie (Q),iIDl gpro.
Sloo==,.:;to b'Jr~toe~~awo C!i8i1lg volumes (ZV)
Jr=ZVJQ-,'1£,5 'H,!),
N_ber!lfcailillg voltiiliI5SeViU;'!iliielJ!(iIflJilieJlithaRii~Wo)",,;)-,-,.,-,-,.;..-,-,'-'-'-;-__~_'-'-'__
MweRi eVllCllll~i11 til diyness,number cif gllll~d~l;'hl.~il~!¥i~!'£!."£.!~_-'-'-~_~_'-'-_
n~'
AnIR,~di';lo"q.
Y
~.".
N
N
.~.
J!'Jresewllllllve All1lalle<Jll(dJi'Cillii""."'i"
Y N
Mm -GroIllOOOOlet lDlJsc!'@I-g€>Jl'6liillJl
rGlfll_Wal@Fl\I1ll'mwriilg
lQulJiliiyASBUlf&oce JPID!1 (1QA1i')
AlnA<C.l!iI!MIEN'1I'l!
'IJlIJHf.Il'.!!'l1E MlESAI ~MillLIL
1Ii'JJJE1LJl])ll»ATAI W([})~JBJ!J;;_JWW~R iGJ!lI.([})1!JNIDl WAlTm
JDIJIJC1iiJ:Wioo ofS~RlJlplimiglElvellli:/,...~"..Jrr t;..=""...L r...1:J<r ::tolD'iii:~~~tiit;,),-,;;,,_--,-",,"
l,ocalilllll (welliniiiiOO>,'_'..LM:.LW"'-.:l."""O'---'l'iJ'lliijihinJrlil iiiliti'aVs :G...<r M~I 1:11
Dille !llJd 'rime for hrgmg ;?.8'.:J.O IO,lIllld,~~~I~~(~differelll!);J.-l\-;;1.0 I()
i !<,.:.'I;,:>j:,),:>,,',>.',,:;",~••';\;,;,~)'-;'ji',,(i!t>~,'t;,;/jJ:+;~i;':,,
Well Jl>iIi)giligEquip 'UQ'~~RinpIlr~!ilider'W~I!;'Jii:~nlJP(ii~rlllalllJRei1ilel)Q a 0
pHJilIilffer 7,11)_--"---,7",,""0_---,.,..,..,---,-.,-
Speeific CllllldiRc,lallll:e~t.T1 __lI!\dI!j[()S!I:i1l!
ilJm!.Purged LI -\'">;:..'::.
ClIlIdrnc!lllllce__---=6:.,.:~c..:l7..=!3'____,_---
Temperamre 1;1,•'6,7
Redox ll'oIelll!al (E!i)~~_
T",rb;n'-3 Q
~~Ol(Potential (.I3h)...,;~b!..:O::.:::l.~_-,-__
TUrbidity •&,
fillle:~!(!;6 Gm!.~'.18
COOdiRC!lIlllOO--Si(;clj7e.;u,;l.L-_
pH 7./:5
TempeRtiite,,-":.!.!II..:,;,1.$""'-_-----
'":.
-'
MJiIR-G,UiWMViI1lrerIDijgdm:gil Ji'eflii1lit
trJKiJUOO_MlIm(lllmg
QImiIity A!lswrmwe Ji'IM {Q~
Dare:UJ1.[16 lire1liBi~jffi:I
Thl'bidJil.y:_'_
Howbre(Q),ingpllI.
SflID=•.:l17~,--,-,-,-,
'll'i_'to il1!!M:lIJlIre liwo C!!8ing'!folWiles (2V)
'll'=2WQ=";l81 'Mill':
Nfililll1lJeK ofcliSing 1IoliliOOls evili)fillited (ihj~\lfu;,iii ~Wtl}p;;.''':-'..:..'-'-~-'-:--_
MweRn e'!fac~ro Il!ryIWBs,llumber ofgalJ~(lV'litilM,Wlillt","'1,1 --'-_
Mi!!-GroilOOl\lllllier1IPiscl1.JP\'JrnJit
GroilOOl\lllllier Mmlliroriog
iQw!iliiJl ASJlMJr&.i1OO lP'i!l!il (Q1A11')
1IPmie:2.25.1J7 Jlle1lisio!l!:2
4'Jr.iI'A<C1!f!!M!l!W]['l!
W1f1HIl!'JI'1E ~A lIJ1lUN1!lDMlM!lill..lL
J!i'JI1E1LJlJJ IDlA'JI'A W([)JUS1HJlE.lJji1r~~iGJE,([)J1IlNIDi WA'1l'1EJR
]l)eOCriptiIlIHPfS!Lll!lpl8JigEvelit:/s'"Q"..clrc L~;,n!~kc ::!DID
WcaiiOIi (\VeIHHa_)'Mk'!~.•;Jt~i~~-J:~~-r/J.Jl:J.,o','XU
IDate /lllll'l Time for JPQII'ging 2,.1$''-0(/)IIlllIl'l Siijljpninng (if different)-....,
Well hilging Equipl&~'~~RiI~rii·i~I~;'Gfji(I~~~ifotlnefillmBeMet)Q f!D
,
Specific ConlillJlc,~ce qqq
.'
CondilGtlllllce,_ZLl,OW1CL7 .....t70"(O
'!'ilibidit,j(•ezr, ,,::':'"_,"-,.,.-;-.u-_-,-_
II/Sb
TemperatlJre.-J.!L.Ib"'-_
Redox ll'otmtial ()E!l),_5.:::...c.:'b,,-_~_
T".b:a:t-a _.>Lg...,..S'--_
pH "SA.I
l'el'iiB!eiilt~~1:..J.7______'<1./1(
llteaox P6ritIDlilli (Eb)c...E;;:.,D_r_____bOI
!.Llc:'",,'i·5
JMIUH!-([l1f@~WS!e!r]DJj,~~!l[geJi'erli!1lil
tGroullfi!~l.\fmlli1lJoog
QiiJJIi!jf A!lslillfIllEeJi'lmJI (QAJ1')
'fw.J:1I»jdi!Y._
JFIliDwlUre(!\D,illgpIDl1l.
&00 '"'"•217J-...."-,-,'.~~,';
:'.h
Jff well!;;vac~~o ~88,Blitmber liJfg~iii,~~~iY~~.!";L':"':i;-\'\-;-'l',--'-"'--_-'-__-'--'--__
N-eOJfceJrtifiedAllml~C!lllJL~J.1!wrr'if~~if,~~~~~~~oc.:·~
'0"..t O':;!·;t"'">}..&;':,,,:'",_1 Se.to,\:,"_,:::i-;;'-:':,_;\,;..;,;/·:,~\~~__.):-i~~,'(lC;.,""A;\>;:t:::'j:?:~-~~':<~.
'll'1t!me If(,s_@nil;'/i.,
•-'~';',I;
",.~,.,
Co_iiIfl Artidet on ..;h ..~«!WI MIS.:r;..p".H.II:J..''''$,.f JJrr~'<!I!,I,M"pl;.~Euccr.p"",&,b~06~~.~t.;.,~U5 Pu,~""we"Ar SKI
.'"
MiD!-Grom~rI1w~ie;r Disch""-ge 11'elI!Iiii
iGmi!il!i!waieF MOlliillrilllg
iQ;mI!iiy AssiIlrmre Hllil «(lJilJP)
.4.T.irAC1!IllMlIlW1l'JIwmm~1!JHI:ANJ!lIJJMi.M1IJL1L
J!i'lIJEILl/])Ji»A'll'A '!IVOU§JB1l1i:Jlj}t~R iGiolUNJjJl '!IVum
DesciltpltiooofSlill!lmpIRingE'lMt:/....~....J,c L~;,.~LU¢'c aDlD
"if$,AAJ~t~f;'i""",'',.),....","'
L!ll:mion ('Wellim~iiOO)J\f IJ db ."lIl'iinljeliliuf iiliti~ls :Go••e f/.I/:~'XU
Dme lillJW Time for ~gm~~g~1 t>"aIId~~P~~g(~<fferen!):-.',
Well J!'lJiJgiilg1E!!J!UIip!tt~'~~ilicp ~r ~~iAil~;i':~~"ll~JIl (ifolher IhmBeH1li!el)Q e Q
!:'~~:~~:':~;~;1i~~~.',:'c;,"
pH"<0,$'-1:
;;~:~~:.j:f"~""'.~l.-~_._--
Tmbldity "
.-....•
~olt Potential (Eh)'-i;...:3u%~s-_~_-
TUtbillity ()
<':.','
"
Glil~g<id 3,1W=!..
Redo!1!'orerntial (E!I)
T"'.b;H~
CtmW!llCt!irnce._3:=.L1'l..!.::l.""'-__---
pH\--._---'b~,:.;::5'-''i _
TempefflilbHrt:...-_..:.l'0-:-,'(.:.1.7 _
~1~_
o
Coodilctllliooc.-?:'i:l..L1'lJ.!IL--:.,:,lI!-"I=()
pH .b ,~?-.G·!:>"::>
Temtfetiltlll'e..:.<_I...,::'"",.'l-'-q"--_---.....!-"'-:.'-'.j~
R~li6Jt Pdtential (Eh),--"~"'5"-'\'--__--::~0-5'
()0.
"i :.;
\.'.1-..._.....
lJhlliII-iGlm_ware!IDmcl!lIt{9'if'©Jf1ITillit
QJm~lOO1wJilli©!t 1\6!imiillxiIDJg
Qinlliily AllginllCePja~(QA1P')
']I'liIhil!!i~.v:_·-,--_
'J['~'tlD evmcmre rtwlD ll~siEIg W!OO,leS (2V)
'J['=2VIQ-.'?-'-If!.M~(/.
lffwell!eww~!o «!!Iy/ll.!lSS,llllmber ofg~j~tiihii:~~:liD:'~"-!'-'-_
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pH Bl!iffer 7.0 7.0 r~,.r..1j~;;:~:';~!.~"':r:~jO:,::,.'.;,'.~:;"~"':'"
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Tab C
Field Data Worksheets Accelerated Monitoring

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COlldrncillnre-l-L4-1l.(S"""'---_~_-
pH 6 .~3
Tellipm!tIi!l'e--l-=~,,-,q7'fo,,--_
Redox Potelltial (Eli)_Y,-~_I _
T"'.b;H~_-<1-",8-.-=--_
ri~e:l,\700 Gmi.~
COlldllCllllllOO._1_'i""iS....t'l-'---_
b~:::>pE(~----"'-------
Tei!lpeitillilre",...;:l_':,...;,-'c'c..i+...-_
IjU~JRieilolt J>ote!lllimi (Eli),__'.:..:.o...;-J=--_
.5;(-'
lIi!I1~-iGrl!l>_vva!elJDllsc!!",lS"iPiemrul
Gr<DMoowlliei'Mll.rinlg
Q!lilIi,j1 AssmnooPla~(iQAJ!')
Dale:B-11.1J6 JRel'lsimfi:J
Thl:bidi~.v:_·_
VollillDflllifWm:er ll'urgeil/:wtlidlJiill J2iCMiUU-tJ it .~e.-__\l..!d;:t:.",$5!"",J.lfbL:··:"""__.....;
NiWli1IIbe[ofcasiilg vollfi~8 eviiCiJJii~eiII (lfliilim;iliiul ~\iijj)","..;'..c.'.....:...~-:.-,-_
]Ifweill eVlIClillted ~(1 illrylless,nl1mber lifga~~eiY>il:il~~:tci\.,-,.",-'_
"....:;'.<.....'
Name ofCertified Analyticll1l LaboraioKyMOih~f',~:MIi'i~JLaii~Aiber',(,M INc <J=kb
•c'.I sd 01;'.,v.pe
Mi!!-Gr,mID1!ilwai6FJ1Jl;gc!lll.iS€'Jl'OOllii
iGro!lli!l1ilwaieF M!>lJJirori@g
Qwlliliiyft.EBWaooe JPIlJJil(QAlt')
J1Jla!l;:2.25.QJ7 JRelfisiml:2
AITAC1!lIMIlEl'\l'1IJ!
VJlIJHlJI'lI'IIJ:llA!lItS.4.1lJ1ltiM'\lIDlJ llAlJIJLlL
IJ!'lIlElLIDJ Jl»A'.ll'A W!'(j})J.tms~,J!l'@m Gj(j})llJMJJ W!'A'J!'.IEJR
lDeliCl11iJliioo ofSMiplimlg lEl'llool:/....~"...,..\rr &;'..:.",lAkj.,.c ::toIO
~iOlI(welftIi8_);V1W X>>"i(~~~t~iJ~itiJI~:f;..<c f/6/UiJ'I XU
J1Jlale a~d Time forH>Mfgi~.I.-iJ-A)1D •••••~d~~PI~~(i~;ifferellt)_
Well ~Ilg Equip\r~'~~or_b;JI~>~WiII~~~p(If(Jiherlhau BeMe!)Q 2Q
."~ox Potential (Eh)-+:_Y"-7'-=S""-
TUrb{dij.y ()
Sl!1II!IJliiug lll'lleilil Q"•..l<r1~,lj.",,,.,/,,I,)",,",...
pH BUffer 7.111 7.0
Speeifllc Conldllllc.lllJIC.d1L_l.iMIijI[}~(~i~i
Cond!llClinoce,_-'3::::...J.:O.L'1uq _
pHL--,---__b:::.=,3lI!::..-_
1rem~erlitili"e~L.....·"':.:>:::.;,../.7_1).1....-_
LJ '1 LI:Redox Pritelllilll (Eh)e...-_-c1 _
I'S.··
Gill,J.>urg~ILL 5b
"
Com:llic!llillcc,__S....u.X""g"-G)./--_--
~.'~ipH'--...::::..-'---C.-._
TempBl'iilinl't,---,-)Y-,-'_0_1 _
Redox j[>o!el1~lal (lll1i)'-:-y"'-::'1_0 _
T",rb;a;j-~_-1.1...>..:,3=:;._
JMfiil-/Gro_WIllerJLljscbarg?K'erol
Ii1roMIlrlllllZllJofJ.\{MllJi!!FOOg
QiI'.1iIily Assllm!1OOPla~(i(/AJI')
JLlare:u.f7.1J6 Jl!ewJsimll:J
'fmllPililJity_-======__
If1fuw he(Q),ingplill.~.~It~n.uale llwilll:llllWg 'l/(Il.UIJl!l8 (2V)
SltiAJI='".•2.11-,--,--,-"..L',',T"'~WtJ':"'i~;~Hn.M,'Q.'.,'
NQlliIIllPeE illfI:llllWg volliiiiii§'s eviiiiniilllilil(If (jillei;Ithlllli tWo),,-,;'"'"','-'--'--'--;-_
lffwell evllClllll.~10 dryness,!lumber ofglii,~i1ri~lbV'a81ii~p.,:i;,"!i....:_'__
Nmme ofCerlffied AUlII.\yiicmll Labprailliy·ifoihJ-~:tf!i\ili:Jlt~~ijlf JLaii~:J\1b.er;(M 'Ne..t '~b
·,h.;,:.l ;.i;.'1?···.::l,,;,I sdol;''I .voe ,
r=--=-=~~--'---'--:=Aall«Jj1liiJll
Min!-QromJd]waie,.JDlisc!!@~ge JP6ffi!il
iGro_waieirMOinirori~g
iQulliliiJl Asswa.i!OO Ji'lmi!(QAII')
JDlmie:2.25.117 Ji''''1fisim~:2
AI'lr'Jl'A~J1
Wl'1HII1'lrJE ~Al1!Jlf«AlNl!lUMI MIDLH..
Jli'J!!ElLIDJ llJJAl'll'A W([)).!U'§_J!i'rolm iGnR(l})lUNIIll WAI'll'llm
DeocrijWioo IIf Sllfi'illIplimiglEl'l'eJIII:t''''C)"..dec L.~;,.J.~c ::ID'O
'1!Ji'~~f;1;~i;.~:·,/;t'.'f:~:()':::;':;:"(:';«~''':.:•.
Specific COll.lilllc!llllce.....1-'-q~'--_uMU,OSf."11iJ l*~l~~l!I;q;:;~::~:::.';:::;":~':';';;.""I.';)·.
~tfdox Potential (flh)"'f,-,'-l""J.::..c7__-..,..__
',l't.jrb{dity,.''1
",:
.'
Time:132.0,,.."~:1'?>IS Gal,PIBrg~.--!.I~.9..,a,,-_
Colidll~:::'_"_l.\"",b",,?,-,'<6;;:;_._
pH:__C-Co,::....:....b.=.,'1...1-,-1 _
(M•.PW-ged,---.J,"".g"",6<-,.~
COOdilc!llllce'-y....:.·.;:;.SB.;::;.q-l.-_
b''-ipH~__-'-__-------
l'~mjlel'litil~,-"_:.!-\Ic-q.!-L=--_
R~oj(Pdtenlial(Bh)l.-4.;..O-"",,_
17
'.'
r.-I1i1r/loodlwa!elIDiEcllal'gePe!1llliil ]))are:u.H.1l6 1II.eVJSi!>lK J
~W!lWl!letM!lllJlDzmg
Q-JrA!lSU!Ull100PIll/l (QM)
'fi~illfti:y_,======-_Millftiy _
lFfuw JbI.e(0,iIJi gplill.a.....
SlOO '""'_---"-'.s~l~l""::>......__.:__.:_'_.
~..,.
Mm -G1I1m~ll1wa!~,.1[jJisc!]@"g&Jl'eoolll
([][e-mail]!WblReF M(lJillin~(trrEillig
QwuiNijfAs§Waib"elP'lllkl (QAJ!')
.'
Turbidilyr__---"-.""'d~.---___'__
Rfidox Potential (Eh),~.'-'::x""3""3~_~--
A'1I1!'.&JCJH!!MlJE1W 11
W/iJHIJI'JI'lE lM!!!!:§A ~&NJ[[JlM!llAillJLlL
JFJI1ElLlj))llliA'JI'A WU'((})H§IIIIlEIDil!'1!i'((})~G~((})1LlMJJ WA'JI'Em.lDescri~iooof£~~pli@gBve~!:U:~~t,~~~teri~o~~~J~.G-rQC~~IUeit<!'
JLoc!llill~(welh_)MvJ X iN~~lili&'iiJ!lliiais ---),;n9"'-IJull:J9~
Dille I1I1!I Time for lPw"giIDlg ).)2--;).010 0011 £llI]Jlpllilllg (iflIIjffereIDlt).'--_
Well hrgllIDlf!;E!Jlwpiij~'.1pli~por __iJ~i~~i'W4ii~~~p (iflIiher ibmDeMel)(",lin~~,t'J.~~;,h,
Samjllii!gEveii~/1°"1111 ("'0*"".i0.tl'.,Z~~1~~}'!!~~Fl~~?~~1iil~ilf+Yl("LMWis.;!
pH lilJliffer 7.0 7·0
Specific COl1.dlllclumcle--=f:fl---!OOJ[Os,(!<~
Depib
Turbidily,----._---:<::..;d..c-_
Condlictance,_,..L..---
/'
pHI .."..£-/:..../_
/Temjlerature'....,./L...·_
RedO~I(EIi),-------
Conductance,---".,;:,/'_/_/_
pH //'
Tempenrr:'_'.·_:_
;Z:oteIllilAl(Hh)'--_
MJiil-Gmill!llrllwareFDiso~lll:ge lP\f;rol
GWMOOlW!l!©rlfJimililrdn!g
Q~!il!i'Y j\gSU!1fB!Ee P!M (QAJ!')
'J!W:IlDMIiiy,:.........-====-_Thl'ilDidli~y'':'"-,....._
JFllllW lR.*(Q),illgpllil.
Sf00 =.--
'JI'ime'fro ewcRllare ~lMlmg lIo1W!l6s (2'\1)'JI'=2V!Q-_''__.-'..._
NRIIllilllDer ofcoomg lIo1Uiliie's ewCIDJliledi (if6ihet thlllii tWO)'_~'.:.....__--:-_
llfweil ellooooted to liIrylJ.ess,lIumber ofglill\mi~eifacii~pL:;·,'~.__-_
Nmme ofCerlified AualyticmJI JLaboratory ifOih~i\j["IOOi'if~JLabs'-·_···--_·,,_·..:..··..:..'---
if
Gross
0IIJer (SJ.l~ify)".,
y'N
Y N
N
N
PJreseJJ:illlltilVIl'Attl!alle«ll
(cl~eJl~)"-',.'.,',".
Y N
l\4IiIl-Groil®!IImlie"lD,;"cl,rn~g@ JF_ii
IIJroMJll!W£F M"llliwriilg
!Qualily.fiWgWBi>OO JI'lllll (QlAJl')
AnAC~JI
WJH!lfJl'JE JMli!mA 1UJltIM'\1IDUM M1IJL[,
1i!'HIEJLJlJJ lllJA'iI'A W(i}JJttslBJlli:umr·JH'«jlR iG1ll'.lDJ1U1ID WA~
JDescrip¢ioo ofSarnplinig EVtll1l!:.....,-'~'"1':""--,-.,-"--'-+--
iiriti~s·:Gon.e fl,,11:Jo',I II
Jl)atel1ll1l111 'fime forJl'mging I·i!1 .,'1,.)\0 l1ll1l111 S~plmg (ifdifferellt)
:i i(>.','"_'),:f>,:}ji i,',jY.(:~;'-_'.(;:-<'_1,~\>{'_-j!.tj~­
WelllI'iJrgiHlg EquiP Used:':)tiitnmp or _liiIiler ."-'-..".
.'
pH BUffer 7JJ 7.0 J1f1f\\'~~~~~~;~::~:c:'.1::;'~~';*'0:,;:;'::;'::;";~'"c.:•."..
SpeeifJic ColllllilC.Il1ll1lce..,.iCf-;.-j.L._lJlWl[,OS(l:tl!!.;yr~~~~~~!it{~:::~:;.;:.':-;:'.;;:':~;dr"'".,,}.;..".
Deplli
~idilY Q
fiJliie:i2.!5'-.,-..,~ime:!lOO Olll,~g~:;'5,60""::);"-:i.\
COndlllCtl1ll1loo'-_.....14.....'...81.......,..---
pH ("R9
Temf!lermtlil:e.-!..ILj-'-'.""~'--,_
Redox Poollilial (B1i)._5_;)._;;l.._
T"'Yb;a:t~_--"0"--_
GmI.~'52,(1f$
ColIdIiCIaiJCe._-'"15""'..,2"-lS>--_
pH:__------"b_.'_r7 _
'I'l3lnpemtilte._'·_:..l.14.....·•..,.S"--_
Re1:lox Pdtenlial (l8h)'--~'5~1!..L7 _.""1'",,1:>:01.;-1-~'---"'
l\i!JiIl-iGwIDOOWllIer J[jioc_ge !"erliiiit
iGmuooWliiu MmM!lilwg
Qllll!ii.l'AsSrnlfBlliceJ!'lu (QAlP')JPage41 @f41
JFliJ>w~(Q),wgpil.1.
81M'"'", •;;1.17
'J[,wMdiiY._'_
NWIll!l.'OOK wfclliJwg voluiiEilis eviii:l.ullied (ifij_thim'Wil),-,,-;:'..;•.--'---'---'-.,...-......,--__
lffwell eVliCmted W d!ryllless,llulI1llber ofi;l!iit~l:\V'aitii~!:t'«('-!'~,~__-'-_
Name wfCeriified AiIaIylicmll JLabOKIIWty,jf bihJf'~:~~ifur Laiii(1l.1Mci.,,~~·.b
':';~\:,i./,1;,J'V':i'{f~tW'~:tt';'~.I\t~';h:)~;;rQ i,:,:"",',,_,0_',-,','.--.'".'I $eJ"'6J;"'t yo~~
;;..,
",
Mm -(JlrowOOlMlierllJliscllm-geJPm-Jilli,
[Jrooo<lwaiefl\J!OlnHwrnHlll
iQ",lliIniJlAgg!ilf~nre lP'l1JJil (QAJI')
llJlaie:2.25.()7 J?,evnsnoll:2
....;,.
llIT'lrA<C.I!l!lMllEN'll'll
mm'IE~A llJJlUJll\1l!lIJM MlllLJL
Jl.i1lJlWjJ)JlllA'll'llI \\IV([JJJU§JlJlJIl:lE'JrIDJi iGJi([JJlIJ.NJ1])\\IVlilT.
Ji)e§l:;;!jlI!nolJ I1JJfSl'JIDliIpliilgJBv€llll:/S'"Q"..clrc &..~.J"ltw"C WID
]Localnoll (weIIHWimii)/IJl1,,!,2.1f ,w;~~t~~J~ti~s':G...~/k/rJ,.O'!XU
llJlale llIllil 'fime for l!'!ifgiBJg I-I q.,;;I.e 10 oolll slillipnillg (if!IIifferellt).,
Well Jl'iil)gliilg lfllJlilip iU~I'tibi1in?~r .'blii{~~i'W~il~~J)1 (ifotherIhliilJ81ellilet)Q Ii0
lP'rejf,:I1lfel!(<l"/m 'led·'"S'm"iin'JHvelit d"l.W .':Ii1,."..".:~1~tj0i~lfi4;::')!;i~1?f~~"'>';;"l~~~~~'iii:'~f",r<""':"~"'f!""'\'...,.,~'i'",i?",1SapIlJjlliilglflveiltQ'w\"d~,Gr....J"It,)..-\-'c .
pH Jailffer 7.0 7.0 ?1Hk~«~M;~;;:~:i;::~'~k:,q1:,~:O~::\~;;,.~::""""::
Specific COllllluc.lllIIce-c1Q-!-'J.....----euMIJ!OS(1l1.1!(.Y!r\f,~W~~~i!;~';i;~~;;:dl~,~;';;'!~l:t:!(""t.,I)
.'
~~jiiptiliillie .Iq ,<:>S
~~o~Potential (llli),-'i:_S,,-,O.:.....;q'--_~__
IDeplJlro WilierBefore hJfgilllg 71 ~!5 '
~iiij~~~t?JI.;;~~~S~?""',..;,j,;t
},:.';',',::':-._..;..·._.·.,',·'<l,:,W,"N'..,..t '."••~-··,·"~)'~i'-"
w~li;\JY:atel.'t¥Jijjp.(ai/g)14,14,
,.·'c·>''.-';···o......';"';V;·C.".1,""/'':"'i':'~)_'i
pH,.
~m~~~~i;::,:!,~,';~?'~q'6.
~~~:~~~~~J~,;;ti:,-"i-.,>."",:.:..._---
'J,'mbidily 0
'fifue:\?=IC\\<'
Cl1JJliducltolllce·_"_:J!...l9_y'-S"'-_
pH:5 .55 '.::>
1'i:lfuJjletilii.lre:)LjJ.Cj
Time:HOO;",'»,'--.>.>;
VJ!S.C>Spu_--""-=__-<-_
Teillll'emllHrc,_-,--'4..:.',_Iq _
RedoK If'ote!i~ia!(E1i),_S_O-.:.(_o
lMIJii!-iGroillllll1llwRlerJI»iEclliargeJ!'@rmmir
iGrommllWlliet MIllliwmg
QmljfA!Jsm8l1OOPlOD (QAll")
'J!W:"liill.iIY._======-_
JF1IIow ~(Ii».ilil gplll.
8/00=-.•20'6
~idiIY._'_
',!,,,,;,':1
1'i~'~ilWi)1IJl!le fOOvo casililg vllllIIilll!l (2\1)
1'=2V1Q-,"ri,OLl.M.'h
NiDiIlileK o1f cliSililg voluJiii€s eViiCuniiIlid (ifijillet/th~iif i-Wo).!....·"''''-.''-'-~-'-:-__~_
lffwel!evac!J!a~illilrrynes8,ill1IllIbeK oi;g~~i!~tV'lili~~A·:iiI\I'-''''':_---'-_
NmilOO IIiCerlified Alla1yiicmll JLaboraWiyif bt4if,1f!iIi";~gijw J[:.aii~.Aibe....(,p,tI ItJes-Lkb
,,,,:::\.;,;"\;'l",,,',"I sc.\,01;'0'v.~e '
lViiiln -Gni>I!OOll1mi~r !I»isd'@i1J"Jr-.il
iGm~JlllwaiGif Mi>iMWring
lQull1lilyAsSUl!fSIlOO JPlu (lJ'AJP)
!I»EJ1~:2.25.W JFrevisio1!:2
AnACJHlMJEN'JrJ!
WI!]j[JJ']['JE ~WM\ll![JMMlllLlL
JF1!JElLJ1J)Jl)A'iI'A WIT(!})nsJfllJ1j:@'W~Jl G.!i(!})l[JJ'\JJIJ)WITA'JI'./EJR
]l»vllC~illll ofSafillpliligElIt11l1:/....Q".....\'r &"l!OJ..lA1a+,.C:l.Ql{)
lLlJl;alioJi (wellil!froo).tAw ?>o 't~iJ~ls :i:~..c H61l:Jso'"XU
!I»are ~d Time fur PmgiIl~I?Q-ID.•.••••'..7d{~~~~12~(i~differeJit)----
Well l!'rJiJiilg J!l!JllliiJI!LT~':~~por _~~~l:Il"'~~ll~ff~p (ifoilier llim Bellilel)Q g Q'.,',:-'',."':''-'-',-',',·c····.".
SlIRliJllnilgJ!lllelll Q "Mkl~.&r....!.f"..~et ~~IM(:~,U~~"'PI$~i\i $.~rrn~!i~~'~Y~lJ,!,JiM:f).':
pHlBiliffer 7.0 7.0 pjBJ,fQ.«~~'1)~;Z;:;:';;'~~';'f.¥:O':(::\':;;':::';''t.,,:..
SpeeifJic Condllc.!llIIce qcn uMHOSll;fill'w~i6~it!iiJ,,;':"'211 (,).;.;"t"··"",,',,,,·,,-.,,",•"......."..,,:,-./-"/:,'.';FJ~:tr:~';;<';":_;N<,n;'(:!l:-"":r~-,~·;!''!-',,;'';''~'~-:·:'~'·\''«.~~-'';'"7'''
.-
..'
pH 6?7~
TelllgJemtilre r:~-7:3
Redox Potential (Eli)~__~_
T"'.b;J.:t'a _-'-0-'--_
Time:r/50 Gal...p.;......."qU,,.:_,1I'III\6Vi.ll:
I '7'?pH !:El.2
'feqlemt1lre:1'S S'l_-----
R!:i.!ok Ji'oiefiiial{Bh)c-'.::;Y"",O'-YJ..·_
Q
roffiiiH -!1ilrl!_liII<l!ei(Dlsc!mrge iPbmnlt
!kl!_w*MlIlIiIlIriH!g
QWili,y AIlSnRroore:l'1I!!l!(QM')
nolfuillliiiy_-======-_'JL'ull'IIillliity:_'_
HiDw ~(Q),imt gj)1lI.
SfOOi =,.2,Og
~·~.~~~letwl!llUWgVll!ll\1WS (2V)
T=2VIQ'aW H'J
NDlllloor «lif clillillg 'lfolw~s eVi'icmted (ifijil(etMt~ii:IWo).!...>'''--'0'-'-~-'-.,..-_
JIf weill e'lfacllll~10 drryness,number ofgl!!ti1il~eifacil~':ui\,,-"~-'-_
NmJe ofCertified AnmlyticaJ!Lab01Cllwry ifoIinJf,1fIl\i":f!4~Jtaii~A,m;~~('Q,:!;\rJ~~b
;-'/';:1"
",,'
MiEn -Gm"mllilwaler Disc!'@'15",1?0Iii1li!it
GwwKM!~J1!!eji l\J!OiJilol'n"15
iQMlliinly AS£"fl1!!OO 1Plm!(r()JAJ?)
Dale:2.25.07 p",Vngnoil:2;
&nA<C~Jl
WI!1HIJI'J!'JE M:JE§../i>.1lJ1i«&MlUJMI JMIHILIL
1i!HJEJLlID Jl»&'Jl'&W<l»OO!'(§JH!!EJE'J!'][?<l»~IGIDJDJllJNJID WA'J!'1EOCD~ioo @fSawmpli®g18ve®l:V:,n~~~~~~t~z\~n:l :'MA iHJ",•
JLocl'l1iOlI (weilniJlOO)M\r"l Q Naii!e aRid!iiJiti!!lls l.,.w II.II;~'T.H
Dille llfild!Time fur J!>!nrgimlg \-Id,':tolD ilIlld SIl!]1lpBmg (ifdiffereJl1!)_......<:,v,:.:/-'.J/t'--_
.'~OlC Potential (Eh)/;r r
Turbidity :;.-.8'
!,',,'}',(:i:';',-',',"-i:",',''{"::':_'!J;:"/+'~"j/,/\;?,U
Well JP'IoJrgi®gEqwplliiieit '~iJilmp or _li~iier W:~ii'~mp (ifoilier llianll3leMel)Q f.D
SlIIllJlllingEvenl M"t~lt (,.ro,,~q,w..t (I JP'~~,~l\'ll~~llIJit~d;iD!S.iI!i!!plinWlB:vent,vil.
pH Bufi'er7.1!)7.0
rem~~~!,\",J',?·'-H,
~~1t~~lii~.)c,..••~,~?-~?,,",\_.---
Turbidity \S .:;l..
condliC!llnce'---_?:.<..Jq"'":6....1_~---
pH__..=C,"'-',\"""b _
Temperature ,,:;)$1
RedoK Potential (Eli)'_J...l'1Ll:I....· _
:;)..3
'fIllI1e:t31;l,GaI.J.i'Utged,b9 IS?
Conduc!llnce 3Qq=O'---_
pH~---=b"-'I_L_Z _
Tllmpemfure :\:J ZSq...._
RetlOK Plltentiili (Eh),_.:...1b::..:~:::..:-._
;;2$'
fa-I1Jwil!!liillhTifarerJI)isclil!rge lI'eril!!!i!
G-romm:lW!lret M!llliillriEng
QwlIi,y.I\llsnnraIDice JPJa!Jl (QM')
Dal-e:H.11.il6 JP..evlsioiITC I
'fi~1f;iiIRl1f.__·-_·_-_··_··._'Thr1f;iiIRi.v.:.:..·---=========....:-_
u,oYL..__
lf1Iow lb.fre {Q},imI gpm.\7
&00=.•:J.'lI'j_i~.~yac~1Iie fooIIo clISiilg Vll!ill!WS (2V)
'lI'=2WQ'-.3-32 1'1;"
NUlmber IIfcasimlg volmitiiis ewiCMliIOO (W.,tIiei thalil ~Wli)L.'_.''--__-=-_
lffwell evac~10 dryness,ilumber ofgal\~&eifal:li1lt~~"'·i\_:_
Name ofCerlified Analyticall JLaboraloty ifbdlli~m~\Jtdlil:1W JLai!s,'_....;"_..,;..-_.._"---
VOCs,..'
All 'offier':''Nmi.:·R~iliolli"~S
N
N
P!reseJr!llll«Jiv,"Ad«llellll<Ciirali).,''.,.,I.
Y N
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QwllHii)/Asst1J!"mreJPI."(QAJi')
lil.re:2.25JJ7 J!Kevisi"!l:2:
AI'lITAClBLfVJ!JEN'll'l!.
WIlJIIDI'11'1E lMIlI!§AI lImAll'\ll[[[JMJMIIDLIL
JFJIID:!f.JDJ lIM'll'AI W~J1"JI(SJ!JI!!!:l!lijl'1W)lR iGR~1lJNHj)WI!AI'lI'B
Descilip[iolwfS!lII1ilp>lmgl!lvel1lt "\i"MlJ.t?,f\t ;;1,()1(»t"0rJ"i1'6-""",.1.W•.\v
"i(~~,(J.I"J(".,.iii''..'.'
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Dille all!:iI'fime forlPnnrgi'lg 1-1;).-;),0(()Mil S~JPliI1Ig (ifdiiffereIIIO'--_
;..'
rempetiitiil'e.__-::-_'--__~_
~oJ(Potential (Eh)-'7,----_--
SampiuRlgJElveIII¢,N\o(\~).,la G,c"",d ~,k-.~~f,W,;~!ls~t~~!!I sm!J!!P\in~Eyelit .~
JPH BuffeI 7.0 7.6 pHialiffeiAjO.,.•"."':'..,.!.,j ,•.0""..',"._--'!'-??f·~:.,'!;i<'·!-';::':',_~o-~;",C-,\~.'-'-"',"',"!';/':-",",
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Befoi:eli'u~·giIIIl~:{1~!..L_Clilsilig Vd~iiine (V)4;;W"Ii:31;,.03 (.65311).,,''."(.3f7?~,..JD6pih ¢o
'I'urbidity."7"'-:-:_.,..----Turbidity ~_---___'___
Time:Gal,Pur~'"'"::.....",j,...-•......,......,.....,~---time:~Gal.·PlII:/;led'--_
COl1dlllClllnce,-_Conductance~_
pH'---_pH~_
TempemtlHre,_Tempemmre:...._·_
Redox Potential (Eli)PJ:l!ox P6tOOtill1 (Bh)_
DVI-?l:C(A1~c1'MW 3d--"
1\6fill-G!llIy]JJ1i(j\wRlelJDlsc1i!&[ge Ji'erlill!it
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']["~~~~nnJlrea~ilo c@sillg1J'll!illJl68 (2'\1),][,=2V!Q="B3~,ItA},
Nnllllber ofcailiHIg voIIl~SevIii;IDialed{ihjilieJittliaii'tWo)...;;:I~,--.:...-.:...-.:..._;_--------
JIf well evacootCd to dryness.number ofMlj~eifatiii~I~~;:I!\,...;."--'_.:...-.:..._~__-.:..._
NlnJIlie ofCertified AnalylicmJI JLaboKaIoJ:yIf~J¥.\flilifi)~igy tiili~,-,<_j_(·i_~...;"...;'-.:...__--~
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I -

Tab D
Quarterly Depth to Water

NAME:
800
DATE: 1530
TIME WELL I.D. DEPTH TIME WELL I.D. DEPTH TIME WELL I.D. DEPTH
1256 MW‐1 65.65 1017 MW‐4 76.25 1217 PIEZ‐1 62.25
1332 MW‐2 109.64 1021 TW4‐1 61.83 1212 PIEZ‐2 16.67
1439 MW‐3 83.17 1015 TW4‐2 66.85 1209 PIEZ‐3 35.82
1442 MW‐3A 85.24 1013 TW4‐3 48.60 1035 PIEZ‐4 48.61
1021 MW‐4 61.83 1024 TW4‐4 67.89 1042 PIEZ‐5 43.31
816 MW‐5 106.41 1010 TW4‐5 55.04
832 MW‐11 89.81 1027 TW4‐6 70.85 1156 TWN‐1 47.54
821 MW‐12 108.43 1018 TW4‐7 66.43 803 TWN‐2 14.24
828 MW‐14 103.76 1023 TW4‐8 66.75 1159 TWN‐3 31.60
825 MW‐15 106.40 1012 TW4‐9 53.59 1206 TWN‐4 36.56
1435 MW‐17 76.57 1009 TW4‐10 55.86 1301 TWN‐5 70.21
1253 MW‐18 70.75 844 TW4‐11 58.48 1246 TWN‐6 74.70
1214 MW‐19 50.61 1426 TW4‐12 38.35 1301 TWN‐7 89.72
1446 MW‐20 83.00 1427 TW4‐13 47.93 1249 TWN‐8 61.80
1451 MW‐22 67.10 1428 TW4‐14 89.79 1220 TWN‐9 64.53
814 MW‐23 113.91 849 TW4‐15 81.67 1243 TWN‐10 81.77
857 MW‐24 114.62 1510 TW4‐16 64.22 1235 TWN‐11 69.88
830 MW‐25 75.31 841 TW4‐17 76.74 1233 TWN‐12 37.97
849 MW‐26 81.67 1404 TW4‐18 56.02 1224 TWN‐13 46.87
1048 MW‐27 50.87 1516 TW4‐19 60.81 1226 TWN‐14 62.82
809 MW‐28 77.41 1007 TW4‐20 65.44 1240 TWN‐15 92.39
813 MW‐29 102.50 807 TW4‐21 56.54 1231 TWN‐16 48.86
839 MW‐30 76.91 1004 TW4‐22 55.12 1229 TWN‐17 35.30
840 MW‐31 69.31 1030 TW4‐23 66.22 1201 TWN‐18 58.09
841 MW‐32 76.74 1003 TW4‐24 55.97 1320 TWN‐19 54.14
805 TW4‐25 45.16
Comments: some of the times appear to be off a little bit, its due to using two different vehicles with which the 
clocks varied by about 15‐20 minutes. This was not identified until the event was done. So rather than change 
numbers to what we think they should have been the times will be left as recorded.
Quarterly Depth to Water 
Tanner Holliday MMHG: 
Start time:
3/11/2010 Finish Time: 

Tab E
Laboratory Analytical Reports – Quarterly Sampling
~ENERGYLABORATORIES,INC.-2393Sail CreekHighway (82601)•P.O.Box3258 •Casper,WY82602IIJJIf;&i ToIIFree888.235.0515 -307.235.0515 -Fax[phone]·[e-mail]
LABORATORY ANALYTICAL REPORT
Revised Date:04/26/10
Client:Denison Mines USA Corp Report Date:03/15/10
Project:1sl Quarter Groundwater Collection Date:02/10/1011:41
Lab ID:C10020458-001 DateReceived:02/12/10
Client Sample 10:MW-11 Matrix:Aqueous
---_..,~....-
Mel)
Analyses Result Units Qualifiers RL QCL Method Analysis DateI By
MAJOR IONS
Carbonate as CQ3 ND mg/L 1 A2320 B 02/12110 22:18 Iljl
Bicarbonate as HC03 410 mglL 1 A2320 B 02/12/10 22:18/1jl
Calcium 67 mg/L D 2 E200.7 03/01/1016:591 ts
Chloride 33 mg/L 1 A4500-CI B 02/18/10 15:55/dvg
Fluoride 0.51 mg/L 0.10 A4500-F C 02/16/1010:521 dvg
Magnesium 19.7 mg/L 0.5 E200.7 03/0111016:591 ts
Nitrogen,Ammonia as N 0.52 mg/L 0.05 A4500-NH3 G 02/23/1013:181i"1
Nitrogen,Nitrate+Nitrlte as N 0.1 mg/L 0.1 E353.2 02126/10 16:461 j"1
Potassium 6.8 mglL 0.5 E200.7 03/01/10 16:59/ts
Sodium 567 mg/L D 3 E200.7 03/01/10 16:59 I ts
Sulfate 1140 mg/L D 30 A4500-S04 E 03/03/10 12:221 dvg
PHYSICAL PROPERTIES
pH 7.81 s.u.0.01 A4500-H B 02112/10 14:20 Ilr
Solids,Total Dissolved TOS@ 180 C 2040 mglL 10 A2540 C 02/12/10 14:47/1r
METALS·DISSOLVED
Arsenic ND ug/L 5.0 E200.8 02/16/1021:441 sml
Beryllium ND ug/L 0.50 E200.8 02/16/10 21 :44 I sml
Cadmium ND uglL 0.50 E200.8 02/16/10 21:44/sml
Chromium ND ug/L 25 E200.8 02/16/10 21 :441 sml
Cobalt ND ug/L 10 E200.8 02/1611021 :441 sml
Copper ND ug/L 10 E200.8 02116/1021 :441 sml
Iron 149 ug/L 30 E200.7 03/01/10 16:59/ts
Lead ND ug/L 1.0 E200.8 02/16/1021:441 sml
Manganese 134 ug/L 10 E200.8 02/16/1021 :441sml
Mercury ND ug/L 0.50 E200.8 02/16/1021 ;44/sml
Molybdenum ND ug/L 10 E200.8 02116/1021 :441 sml
Nickel ND ug/L 20 E200.8 02/16/10 21 :441 sml
Selenium ND ugll 5.0 E200.8 02/16/10 21 :44 I sml
Silver ND ug/L 10 E200.8 02116/1021 :441 sml
Thallium ND ug/L 0.50 E200.8 02/16/1021 :441 sml
Tin ND ugll 100 E200.8 02116/1021 :441 sml
Uranium 0.92 ug/l 0.30 E200.8 02/16/10 21 :44 I sml
Vanadium ND ug/L 15 E200.8 02/16/10 21:44 1sml
Zinc ND ug/L 10 E200.8 02/16/1021:441 sml
RADIONUCLIDES -DISSOLVED
Gross Alpha minus Rn &U 0.6 pCi/L E900.l 02/27/1013:351 egr
Gross Alpha minus Rn &U Precision (±)0.4 pCi/L E900.1 02/27/1013:351 egr
Gross Alpha minus Rn &U MDC 0.5 pCi/L E900.1 02/27/1013:351 egr
Report
Definitions:
._---_._-_._-_.-..__...._-
RL -Analyte reporting limit.
QCL -Quality control limit,
MDC -Minimum detectable concentration
_...•.---_._---.
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
0-RL increased due to sample matrix interference.
ENERGYLABORATORIES,INC.·2393SaIl Creak Highway (82601)•P.o.Box3258 •Casper,WY82602fIIJIiflJi(Toll Frea 888.235.0515 •301.235.0515 •Fax [phone] •[e-mail]·wwwenargylab.com
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
1st Quarter Groundwater
C10020458-001
MW·11
Revised Date:04/26110
Report Date:03/15/10
Collection Date:02/10/10 11:41
DateReceived:02/12/10
Matrix:Aqueous
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date I By
DATA QUALITY
NC Balance (±5)-2.43 %Calculation 03/04/1009:491kbh
Anions 31.3 meq/L Calculation 03/04/1009:491kbh
Cations 29.9 meq/L Calculation 03/04/1009:491kbh
Solids,Total Dissolved Calculated 2040 mg/L Calculation 03/04/1009:491 kbh
TDS Balance (0.80 -1.20)1.00 Calculation 03/04/1009:491 kbh
VOLATILE ORGANIC COMPOUNDS
Acetone NO ug/L 20 SW8260B 02/19/10 13:47 I wen
Benzene NO ug/L 1.0 SW8260B 02/19/10 13:47 I wen
Carbon tetrachloride NO ug/L 1.0 SW8260B 02/19/10 13:47/wen
Chloroform NO ug/L 1.0 SW8260B 02119/10 13:47/wen
Chloromethane NO ug/L 1.0 SW8260B 02119/10 13:47I wen
Mathyl ethyl ketone NO ug/L 20 SW8260B 02/1911013:471wen
Methylene chloride NO ugiL 1.0 SW8260B 02119/10 13:47/wen
Naphthalene NO ugiL 1.0 SW8260B 02119/10 13:471wen
Toluene NO ug/L 1.0 SW8260B 02119110 13:47 I wen
Xylenes,Total NO ug/L 1.0 SW8260B 02/19/10 13:47/wen
Surr:1,2·Dichlorobenzene-<l4 112 %REC 80-120 SW8260B 02/19/10 13:47 I wen
Surf:Dibromoffuoromethane 107 %REC 70-130 SW8260B 02/19110 13:47/wen
Surf:pMBromofluorobenzene 106 %REC 80-120 SW8260B 02119/10 13:47Iwen
Surr:Toluene-dB gg.O %REC 80-120 SW8260B 02/19110 13:47/wen
-------_._--_._-~---------------
Report
Definitions:
RL -Analyte reporting limit.
aCL-Quality control limit.
Mel-Maximum contaminant level.
ND -Not detected at the reporting limit.
g~ENERGYLABORATORIES,INC.•2393SailCreek Highway (82601)'p.D.Box 3258 •Casper,WY82602~_7i1_II_A_re_e_{l._'B_'B_2._'35_.0_'5_1_5_'_3_0_7._23_'5._.0_'5_1_5_'_A_""_3_07._.2._'3_4_.I_63_'9_'_ca_s_.P_er_@_e_n_er;_yy._ia_IJ_.~_om_._www.__..._n_erg._.Y<_ia_b_.co_.m _
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
1st Quarter Groundwater
C10020229-001
MW-14
Revised Date:04/26/10
Report Date:02/26110
Collection Date:02/02110 10:55
DateReceived:02/05/10
Matrix:Aqueous
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis DateI By
MAJOR IONS
Carbonate as CQ3 ND mg/L 1 A2320 B 02/09/10 18:2811jl
Bicarbonate as HC03 500 mg/L 1 A2320 B 02/09/10 18:28/1jl
Calcium 503 mg/L D 1 E200.7 02/22/1019:551 ep
Chloride 17 mg/L 1 A4500-CI B 02/1111009:20 I ja
Fluoride 0.15 mg/L 0.10 A4500-F C 02/08110 14:18/1jl
MagnesIum 148 mg/L 0.5 E200.7 02/2211019:551 ep
Nitrogen,Ammonia as N 0.12 mg/L 0.05 A4500-NH3 G 02/23/1009:451 jal
Nitrogen,Nitrate+Nitrite as N ND mg/L 0.1 E353.2 02/16/10 15:31 Ijal
Potassium 11.9 mg/L 0.5 E200.7 02122/1019:551 ep
Sodium 335 mg/L D 1 E200.7 02/2211019:551 ep
Sulfate 2280 mg/L D 60 A4500-S04 E 02/23/10 13:50I dvg
PHYSICAL PROPERTIES
pH 7.13 s.u.0.01 A4500·H B 02/05/10 16:28 Ilr
Solids,Total Dissolved TDS @ 180 C 3590 mg/L 10 A2540 C 02/08/1012:01/1r
METALS -DISSOLVED
Arsenic ND ug/L 5.0 E200.8 02109/1003:49/sml
Beryllium ND uglL 0.50 E200.8 02/09/1003:491 sml
Cadmium 1.04 ugiL 0.50 E200.8 02/09/1003:49/8ml
Chromium ND ug/L 25 E200.8 02/09/1003:49/8ml
Cobalt ND uglL 10 E200.8 02109/10 03:49 I sml
Copper ND ug/L 10 E200.8 02/09/1003:49/8ml
Iron ND ug/L 30 E200.7 02/22/1019:551 ep
Lead ND uglL 1.0 E200.8 02/09/1003:49/8ml
Manganese 2060 ug/L 10 E200.8 02/09/10 03:491 8m!
Mercury ND ug/L 0.50 E200.8 02109/10 15:391 Is
Molybdenum ND ug/l 10 E200.8 02109/1003:491 sm!
Nickel ND uglL 20 E200.8 02/0911003:491 sm!
Selenium ND ug/l 5.0 E200.8 02109/1003:491 sm!
Silver ND ug/L 10 E200.8 02/09/10 15:39/ls
Thallium ND ug/L 0.50 E200.8 02109/1003:49/8ml
Tin ND U9/L 100 E200.8 02/09110 03:49 18m!
Uranium 62.4 ug/L 0.30 E200.8 02l09/1003:49/8ml
Vanadium ND ug/l 15 E200.8 02/09/1003:491 sml
Zinc 11 ug/l 10 E200.8 02/09/1003:491 sml
RADIONUCLIDES -DISSOLVED
GrossAlpha minus Rn &U 0.4 pCi/L U E900.1 02117110 13:45/cgr
GrossAlpha minus Rn &U Precision (±)0.3 pCi/L E900.1 0211711013:451 egr
GrossAlpha minus Rn &U MOC 0.4 pCi/L E900.1 02117/10 13:45 1cgr
._-_._---_.._---------_._-_._----------
Report Rl M Analyte reporting limit.MCl •Maximum contaminant level.
Definitions:aCL M Quality control limit.NO M Not detected atthe reporting limit.
MOe M Minimum detectable concentration D·RL increased due to sample matrix interference.
U M Not detected at minimum detectable concentration
ENERGYLABORATORIES,INC••2393 Sail Creek Hlghway(82801)•PO.Box 3258 •Casper,WY821J02lMlIf{(_li_Oh_rfi_,,_e_e_88_'B_.2._~_'5._.0_'5_15_'_3_0_7._.2._~_'5._05_1_5_'_A_ax_30_7._.2._'3_'1_.1_8:1_9_'_C_"_SP_8_'_@_8_n_e,,_yy._,_'8b_._co_m_._WWlY._._e_fle_"_YY._'8_b_.co_m _
LABORATORY ANALYTICAL REPORT
Revised Date:04/26110
Client:Denison Mines USA Corp Report Date:02/26/10
Project:1st Quarter Groundwater Collection Date:02/02110 10:55
Lab 10:C10020229-001 DateReceived:02105/10
Client Sample 10:MW-14 Matrix:Aqueous
.~---~--....._~-,.~--
MCW
Analyses Result Units Qualifiers RL QCL Method Analysis Date I By
DATA QUALITY
NC Balance (±5)-3.64 %Calculation 02124/10 08:34 I kbh
Anions 56.1 meq/L Calculation 02/24/1008:34 I kbh
Cations 52.2 meq/L Calculation 0212411008:341 kbh
Solids,Total Dissolved Calculated 3550 mg/L Calculation 02/24/1008:34 I kbh
TOS Balance (0.80 -1.20)1.01 Calculation 02124/10 08:34 Ikbh
VOLATILE ORGANIC COMPOUNDS
Acetone NO ug/L 20 SW8260B 02/10/10 17:17/wen
Benzene NO uglL 1.0 SW8260B 02/10110 17:171wen
Carbon tetrachloride NO uglL 1.0 SW8260B 02110/10 17:17 I wen
Chloroform NO uglL 1.0 SW8260B 02/10/10 17:171wen
Chloromethane NO ug/L 1.0 SW8260B 02110/1017:171 wen
Methyl ethyl ketone NO uglL 20 SW8260B 02110/10 17:17 I wen
Methylene chloride NO uglL 1.0 SW8260B 02110/1017:17 Iwen
Naphthalene NO uglL 1.0 SW8260B 02/10110 17:171wen
Toluene NO ug/L 1.0 SW8260B 02110/10 17:17/wen
Xylenes,Total NO uglL 1.0 SW8260B 02110/1017:17 Iwen
Sure 1,2~Dichlorobenzene~d4 107 %REC 80-120 SW8260B 02110/10 17:171wen
Surr:Oibromofluoromethane 108 %REC 70·130 SW8260B 02110/10 17:17 I wen
Surr:p-Bromofluorobenzene 109 %REC 80-120 SW8260B 02/10110 17:171wen
Surr:ToJuene-d8 96.0 %REC 80-120 SW8260B 02/10110 17:171wen
Report
Definitions:
Rl -Analyte reporting limit.
QCl ~Quality control limit.
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
ENERGYLABORATORIES,INC••2393SailCreekHighway (82601)•p.o.Box3258 •Casper,WY82602/IlIIfJPif milFree 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·www.energylab.com
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
1st Quarter Groundwater
C10020458-002
MW-20
Revised Date:04/26/10
Report Date:03/15/10
Collection Date:02/11/1008:00
DateRecelved:02/12/10
Matrix:Aqueous
---_.._~..._..........__._--_._---
Qualifiers RL
1 A2320 B 02/12/10 22:26/1j!
1 A2320 B 02112110 22:26/1jl
1.E200.7 03/01/10 17:03/1s
1 A4500·CI B 02118/1015:581 dvg
0.10 A4500·F C 02/16/10 10:551 dvg
0.5 E200.7 03101/10 17:03/1s
0.05 A4500·NH3 G 02/23/1013:20 Iial
0.2 E353.2 02/26/1016:491ial
0.5 E200.7 03/01110 17:03/ls
1 E200.7 03/01/10 17:03/1s
60 A4500·S04 E 03/03/1012:291 dvg
0.01 A4500-H B 02/12/10 14:22/1r
20 A2540 C 02/12/10 14:4711r
5.0 E200.8 02/16/10 21:50/sm!
0.50 E200.8 02116/10 21:50 Ism!
0.50 E200.8 02/1611021 :50 /sml
25 E200.8 02116/1021 :50 I sml
10 E200.8 02/16/10 21:50 Ism!
10 E200.8 02/16/10 21 :50 Ism!
30 E200.7 03/01110 17:03/1s
1.0 E200.8 02/16/1021:50 I sml
10 E200.8 02/16/10 21 :50 I sml
0.50 E200.8 02/16/1021 :50 I sml
10 E200.8 02/16/10 21 :50 I sml
20 E200.8 02/18/10 21 :50 /sml
5.0 E200.8 02/16/1021 :50 Ism!
10 E200.8 02/16/10 21 :50 I sml
0.50 E200.8 02/16/10 21:50/sml
100 E200.8 02116/1021 :50 I sml
0.30 E200.8 02116/1021 :50 I sml
15 E200.8 02/16/10 21:50/sml
10 E200.8 02/16110 21:50/sml
E900.1 02/2711013:351 cgr
E900.1 02/27/1013:351 cgr
E900.1 02127/1013:351 cgr
..._-----_.-,-,--..,--".._-
Mel w Maximum contaminant Jevel.
NO -Not detected at the reporting limit.
DM RL increased due to sample matrix interference.
Analyses Result Units
MAJOR IONS
Carbonate as C03 ND mg/L
Bicarbonate as HC03 235 mg/L
Calcium 349 mg/l
Chloride 70 mg/l
Fluoride 0.33 mg/l
Magnesium 90.8 mg/l
Nitrogen.Ammonia as N ND mg/L
Nitrogen,Nitrate+Nitrite as N 6.5 mg/l
Potassium 48.0 mg/L
Sodium 1370 mg/l
Sulfate 4130 mg/l
PHYSICAL PROPERTIES
pH 7.60 5.U.
Solids,Total Dissolved TOS@ 180 C 5150 mg/l
METALS -DISSOLVED
Arsenic ND ug/L
Beryllium ND ug/L
Cadmium ND ug/L
ChromiUm ND ug/l
Cobalt ND ug/l
Copper ND ug/L
Iron ND ug/l
Lead NO ug/l
Manganese 25 ug/l
Mercury NO ug/l
Molybdenum ND ug/L
Nickel ND ug/l
Selenium ND ug/L
Silver ND ug/l
ThaUlum 0.58 ug/L
Tin ND ug/l
Uranium 10.2 ug/l
Vanadium ND ug/L
Zinc 92 ug/L
RADIONUCLIDES -DISSOLVED
Gross Alpha minus Rn &U 0.7 pCi/l
Gross Alpha minus Rn &U Precision (±)0.4 pCi/l
Gross Alpha minus Rn &U MDe 0.5 pCi/l
--_._--_._--,.,._--_._~-_....
Report RL ~Analyte reporting limit.
Definitions:Qel -Quality control limit.
MOe·Minimum detectable concentration
D
D
D
D
D
MCU
QCL Method Analysis DateI By
ENERGYLABORATORIES,INC.·2393Sal/Creek Highway(8280/)•PO.Box3258 •Caspar,WY82802/IIl;fiJ1 TollFree 888.235.05/5 •307.235.05/5 •Fax [phone] •[e-mail]·wwwenergylab.com
LABORATORY ANALYTICAL REPORT
Revised Date:04/26/10
Client:Denison Mines USA Corp Report Date:03/15/10
Project:1stQuarter Groundwater Collection Date:02/11/1008:00
Lab 10:C10020458-002 DateReceived:02/12/10
Client Sample 10:MW-20 Matrix:Aqueous
-----_._..-._~_._------..._------------_.
MCU
Analyses Result Units Qualifiers RL acL Method Analysis Date I By
DATA QUALITY
AlC Balance (±5)-3.65 %Calculation 03/04/10 10:07I kbh
Anions 92.3 meq/L Calculation 03/04/10 10:07 I kbh
Cations 85.8 meq/L Calculation 03/04/1010:07 I kbh
Solids,Total Dissolved Calculated 6240 mg/L Calculation 03/04/10 10:07I kbh
TOS Balance (0.80 -1.20)0.830 Calculation 03/04/10 10:07I kbh
VOLATILE ORGANIC COMPOUNDS
Acetone NO ug/L 20 SW8260B 02/19/10 14:23/wen
Benzene NO ug/L 1.0 SW8260B 02119/10 14:23/wen
Carbon tetrachloride NO ug/L 1.0 SW8260B 02/19110 14:23/wen
Chloroform NO ug/L 1.0 SW8260B 02119/10 14:23/wen
Chloromethane NO ugfL 1.0 SW8260B 02/19/10 14:23/wen
Methyl ethyl ketone NO ug/L 20 SW8260B 02/19110 14:23 I wen
Methylene chloride NO ug/L 1.0 SW8260B 02/19/10 14:23/wen
Naphthalene NO ug/L 1.0 SW8260B 02/19/10 14~23/wen
Toluene NO ug/l 1.0 SW8260B 02/19/10 14:23/wen
Xylenes,Total NO ug/l 1.0 SW8260B 02/19/10 14:23/wen
Surr:1,2·Dichlorobenzene-d4 112 %REC 80-120 SW8260B 02/19/10 14:23/wen
Surr:Oibromofluoromethane 118 %REC 70-130 SW8260B 02/19110 14:23/wen
Sun:p·Bromofluorobenzene 113 %REC 80-120 SW8260B 02/19/10 14:23/wen
Surr:Toluene·d8 98.0 %REC 80-120 SW8260B 02/19/10 14:23/wen
Report
Definitions:
RL •Analyte reporting limit.
QCL •Quality controillmit.
....__._--
Mel.Maximum contaminant level.
NO •Not detected at the reporting limit.
ENERGYLABORATORIES,INC••2393Salt CreekHighway (82601)•P.D.Box 3258 •Casper,WY82602JIlII1j{f Tolt Free 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·www.energylab.com
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
1st Quarter Groundwater
C10020458-003
MW-22
Revised Date:04/26110
Report Date:03115110
Collection Date:02/0811014:06
DateReceived:02112110
Matrix:Aqueous
Analyses Result Units Qualifiers RL
MCW
QCL Method Analysis Date I By
...__...•~~--~~------_._-~~_.
RL ~Analyte reporting limit.
QCL ~Quality control limit.
MOC -Minimum detectable concentration
3.1 pCilL
0.8 pCilL
0.6 pCilL
NO uglL
3.15 uglL
92.2 uglL
NO uglL
294 uglL
NO uglL
NO uglL
1.1 uglL
31300 uglL
0.56 uglL
494 uglL
138 uglL
9.8 uglL
NO uglL
1.50 ug/L
NO uglL
43.6 uglL
NO ug/L
606 ug/L
MAJOR IONS
Carbonate as CQ3
Bicarbonate as HC03
Calcium
Chloride
Fluoride
Magnesium
Nitrogen,Ammonia as N
Nitrogen.Nitrate+Nitrite as N
Potassium
Sodium
Sulfate
PHYSICAL PROPERTIES
pH
Solids,Total Dissolved TDS @ 180 C
METALS -DISSOLVED
Arsenic
Beryllium
Cadmium
Chromium
Coball
Copper
Iron
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Tin
Uranium
Vanadium
Zinc
RADIONUCLIDES -DISSOLVED
Gross Alpha minus Rn &U
Gross Alpha minus Rn &U Precision (±)
Gross Alpha minus Rn &U MOC
Report
Definitions:
NO
532
439
61
3.09
g42
0.59
2.7
23.8
248
4990
6.42
6920
mg/L
mglL
mglL
mg/L
mg/L
mg/L
mg/L
mglL
mglL
mglL
mg/l
s.u.
mglL
o
o
o
o
1 A2320 B 02112110 22:341 Ijl
1 A2320 B 02112110 22:3411jl
1 E200.7 03101/1017:071 Is
1 A4500-CI B 02118110 16:02 I dvg
0.10 A4500-F C 02116110 10:59/dvg
0.5 E200.7 0310111017:071 Is
0.05 A4500-NH3 G 0212311013:221 ial
0.1 E353.2 0212611016:511ial
0.5 E200.7 0310111017:071 Is
1 E200.7 03/0111017:071 Is
60 A4500-S04 E 0310311012:331 dvg
0.01 A4500-H B 02112/10 14:2711r
20 A2540 C 02112/10 14:4711r
5.0 E200.8 0211611022:451 sml
0.50 E200.8 0211611022:451 sml
0.50 E200.8 0211611022:451 sml
25 E200.8 0211611022:451 sml
10 E200.8 02116/1022:451sml
10 E200.8 02116110 22:451 sml
30 E200.7 0310111017:071 Is
1.0 E200.8 0211611022:451 sml
10 E200.8 0211611022:45 I sml
0.50 E200.8 0211611022:451 sml
10 E200.8 0211611022:451 sml
20 E200.8 0211611022:451 sml
5.0 E200.8 0211611022:451 sml
10 E200.8 0211611022:451 sml
0.50 E200.8 0211611022:45/sml
100 E200.8 0211611022:451 sml
0.30 E200.8 02/1611022:451 sml
15 E200.8 02116/1022:45/sml
10 E200.8 02/16/1022:45/sml
E900.1 0310611017:481 cgr
E900.1 0310611017:481 cgr
E900.1 03106110 17:48/cgr
.._-_....._-----
MCl -Maximum contaminant level.
NO ~Not detected at the reporting limit.
0"RL increased due to sample matrix interference.
ENERGYLABORATORIES,INC.·2393SailCreek Highway(8260J).•P.o.Box3258 •Casper,WY82602!t!l/11Jlii'(TOIIFree888.235.05/5·307.235,05/5'Fax[phone]·casper energylab,com'www.energylab,com
LASORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
1st Quarter Groundwater
C10020458·003
MW-22
Revised Date:04126/10
Report Date:03115110
Collection Date:02108/10 14:06
DateReceived:02/12/10
Matrix:Aqueous
-----._--_._.~-------.-
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date I By
DATA QUALITY
NC Balance (±5)-1,72 %Calculation 03/04/1010:091 kbh
Anions 115 meq/L Calculation 03/04/1010:091 kbh
Cations 111 meq/L Calculation 03104/1010:091 kbh
Solids,Total Dissolved Calculated 7000 mglL Calculation 03104/1010:091 kbh
TDS Balance (0,80 •1,20)0,990 Calculation 03/04/1010:091 kbh
VOLATILE ORGANIC COMPOUNDS
Acetone NO ug/L 20 SW8260B 02/19/10 14:58/wen
Benzene NO ug/L 1.0 SW8260B 02/19/10 14:58/wen
Carbon tetrachloride NO ug/L 1,0 SW8260B 02/19/10 14:58/wen
Chloroform NO ug/L 1.0 SW8260B 02/19/10 14:58/wen
Chloromethane NO ug/L 1,0 SW8260B 02/19/10 14:58/wen
Methyl ethyl ketone NO ug/L 20 SW8260B 02/19/10 14:58/wen
Methylene chloride NO ug/L 1.0 SW8260B 02119/10 14:58/wen
Naphthalene NO ug/L 1,0 SW8260B 02/19/10 14:58/wen
Toluene NO ug/L 1,0 SW8260B 02/19110 14:58/wen
Xyfenes,Total NO ug/L 1.0 SW8260B 02/19/10 14:58/wen
Surr:1,2~Oichlorobenzene-d4 112 %REC 80-120 SW8260B 02/19/1014:58/wen
Surf:Dibromofluoromethane 130 %REC 70·130 SW8260B 02/19/10 14:58/wen
Surr:p-Bromofluorobenzene 114 %REC 80-120 SW8260B 02/19/10 14:58/wen
Surr:Toluene-d8 96,0 %REC 80-120 SW8260B 02/19/10 14:58/wen
--.._----_...__.-_..._--
Report
Definitions:
RL -Analyle reporting limit.
QCl-Quality control limit.
Mel-Maximum contaminant level.
NO -Not detected at the reporting limit.
ENERGYLABORATORIES,INC-•2393SailCreekHighway (8260/j,•PO Box3258 •Casper,WI"82602
...ToIIFree888.235.0515·307.235.0515'Fax[phone]·caspe"energylab.com-www.energylab.com
LABORATORY ANALYTICAL REPORT
Revised Date:04/26/10
Client:Denison Mines USA Corp Report Date:02/26110
Project:1st Quarter Groundwater Collection Date:02/03/1012:53
Lab 10:C10020229-003 DateRecelved:02/05/10
Client Sample 10:MW-25 Matrix:Aqueous
-"'--~._-_._-----_._-_._----------.-.._-_.-..-.
MCW
Analyses Result Units Qualifiers RL QCL Method Analysis Date I By
MAJORIONS
Carbonate as C03 NO mg/L 1 A2320 B 02/09/10 19:0111jl
Bicarbonate as HC03 432 mg/L 1 A2320 B 02/09/10 19:01/1j1
Calcium 351 mg/L 0 1 E200.7 02122/10 20:031 cp
Chloride 31 mg/L 1 A4500-CI B 02/11/10 09:311 ja
Fluoride 0.31 mg/L 0.10 A4500-F C 02/08/10 14:34/1jl
Magnesium 116 mg/L 0.5 E200.7 02/22/1020:031 cp
Nitrogen,Ammonia as N 0.19 mg/L 0,05 A4500-NH3 G 02/23/10 09:481 jal
Nitrogen,Nitrate+Nitrite as N NO mg/L 0.1 E353.2 02/16/10 15:36/jal
Potassium 9.5 mg/L 0.5 E200.7 02/22110 20:031cp
Sodium 300 mg/L 0 1 E200.7 02/22/1020:031 cp
SUlfate 1630 mg/L 0 60 A4500-$04 E 02/23/1014:061 dvg
PHYSICAL PROPERTIES
pH 7.21 s.u.0.01 A4500·H B 02105/10 16:36/1r
Solids,Total Dissolved TOS @ 180 C 2670 mg/L 10 A2540 C 02/08/1012:01/1r
METALS -DISSOLVED
Arsenic NO ug/L 5.0 E200.8 02109110 04:511 sml
Beryllium NO ug/L 0.50 E200.8 02109/1004:51 I sml
Cadmium 1.26 ugfL 0.50 E200.8 02109/1004:511 sml
Chromium NO ug/L 25 E200.8 02/09/1004:51/sml
Cobalt NO ug/L 10 E200.8 02/09/1004:511 sml
Copper NO ug/L 10 E200.8 02109/10 04:51 I sml
Iron NO uglL 30 E200.7 02122/10 20:031 cp
Lead NO ug/L 1.0 E200.8 02/09/10 04:511 sml
Manganese 1560 ug/L 10 E200.8 02/09/10 04:511 sml
Mercury NO ug/L 0.50 E200.8 02/09110 16:20 Its
Molybdenum NO ugfL 10 E200.8 02/09/10 04:511 sml
Nickel NO ug/L 20 E200.8 02l09/1004:51/sml
Selenium NO ug/L 5.0 E200.8 02/09110 04:511 sml
Silver NO ug/L 10 E200.8 02109/1016:20 Its
Thallium 0.96 ug/L 0.50 E200.8 02109/10 04:511 sml
Tin NO uglL 100 E200.8 02109/10 04:511 sml
Uranium 5.93 ug/L 0.30 E200.8 02/09110 04:511 sml
Vanadium NO ugfL 15 E200.8 02f09f10 04:51 f sml
Zinc NO ugfL 10 E200.8 02f09/10 04:51 f sml
RADIONUCLIDES •DISSOLVED
Gross Alpha minus Rn &U 0.6 pCi/L E900.1 02117110 16:061 cgr
Gross Alpha minus Rn &U Precision (j;)0.3 pCi/L E900.1 02/17110 16:061 cgr
Gross Alpha minus Rn &U MOC 0.4 pCilL E900.1 02/17/10 16:06/cgr
Report
Definitions:
RL -Anaryte reporting limit.
QCL ~Quality control limit.
MDe -Minimum detectable concentration
MCL -Maximum contaminant level.
ND -Not detected at the reporting limit.
D -RL increased due to sample matrix interference.
ENERGYLABORATORIES,INC.•2393Sail CreekHighway (82801)•P.O.Box 3258 •Casper,WV82802~TbIlFree888.235.0515·307.235.0515·Fax[phone]·[e-mail]·www.energylab.com
~---------------
LABORATORY ANALYTICAL REPORT
Revised Date:04/26/10
Client:Denison Mines USA Corp Report Date:02/26/10
Project:1st Quarter Groundwater Collection Date:02/03/1012:53
Lab 10:C10020229·003 DateRecelved:02/05110
Client Sample 10:MW·25 Matrix:Aqueous
------•._._._-~--_.__..__._..-_..-_._-----
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date I By
DATA QUALITY
NC Balance (±5)·1.83 %Calculation 02/24/1008:351kbh
Anions 41.9 meq/L Calculation 02/2411008:351 kbh
Catlons 40.4 meq/L Calculation 02/24/10 08:35 1kbh
Solids,Total Dissolved Calculated 2660 mg/L Calculation 02/24/1008:351 kbh
TDS Balance (0.80 •1.20)1.00 Calculation 02/24/1008:351 kbh
VOLATILE ORGANIC COMPOUNDS
Acetone NO uglL 20 SW8260B 02/10/1017:52/wen
Benzene NO ug/L 1.0 SW8260B 02/10/10 17:52/wen
Carbon tetrachloride NO ug/L 1.0 SW8260B 02/10/10 17:52/wen
Chloroform NO ug/L 1.0 SW8260B 02/10/10 17:52 I wen
Chloromethane NO uglL 1.0 SW8260B 02/10/10 17:52/wen
Methylethyl ketone NO ug/L 20 SW8260B 02110110 17:52/wen
Methylene chloride NO ug/L 1.0 SW8260B 02/10/1017:521 wen
Naphthalene NO ug/L 1.0 SW8260B 02/10/10 17:521 wen
Toluene NO uglL 1.0 SW8260B 02/10/10 17:52/wen
Xylenes,Total NO ug/L 1.0 SW8260B 02/10/10 17:52/wen
Surr:1,2·Dichlorobenzene~d4 108 %REC 80·120 SW8260B 02/10/10 17:52 I wen
Surr;Dibromofluoromethane 114 %REC 70·130 SW8260B 02/10/10 17:52 I wen
Sure p-Bromofluorobenzene 110 %REC 80·120 SW8260B 02110/10 17:52/wen
Surr;Toluene·d8 98.0 %REC 80·120 SW8260B 02/10/10 17:52/wen
Report
Definitions:
RL -Analyte reporting limit.
QCL •Quality control limit.
-_...•__.....-.._---_...-.
Mel -Maximum contaminant level.
NO -Not detected at the reporting limit.
ENERGYLABORATORIES,INC••2393 Sail CreekHighway(82601)'PO Box3258 •Casper,WY82602
TiJIIFree 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·www.energylab.com
LABORATORY ANALYTICAL REPORT
1 A2320 B 02/09/10 18:37/1jl
1 A2320 B 02/09/101B:37/1jl
1 E200.7 02122/1019:591cp
1 A4500-CI B 02/11/1009:231ja
0.10 A4500-F C 02/08/1014:31/1j1
0.5 E200.7 0212211019:591 cp
0.05 A45QO-NH3 G 02123/1009:451ial
0.1 E353.2 02116/1015:331jal
0.5 E200.7 02122/1019:591 cp
1 E200.7 02/22/1019:591 cp
60 A4500-S04 E 02/23/1014:031dvg
0.01 A4500-H 8 02/05110 16:3311r
10 A2540 C 02/08/1012:01/1r
5.0 E200.8 02/0911004:441 sml
0.50 E200.8 02/09/1004:441 sml
0.50 E200.B 02/09/1004:441 sml
25 E200.8 02/09/1004:441 sml
10 E200.8 02/09/10 04:441 sml
10 E200.8 02/09/1004:441 sml
30 E200.7 02/22/1019:591 cp
1.0 E200.8 02/09/1004:441 sml
10 E200.8 0210911004:441 sml
0.50 E200.8 02/09/10 16:131 ts
10 E200.8 02/09/10 04:441 sml
20 E200.8 02/09/1004:441 sml
5.0 E200.8 02/0911004:441 sml
10 E200.8 02/09/10 16:13/ts
0.50 E200.8 02/09/1004:441 sml
100 E200.8 02/09/1004:441 sml
0.30 E200.8 02/0911004:441 sml
15 E200.8 02/09/1004:44 f sml
10 E200.8 02/09/1004:44/sml
E900.1 02117/1016:061cgr
E900.1 02117/10 16:06/cgr
E900.1 02117110 16:061 cgr
Revised Date:04/26/10
Report Date:02/26/10
Collection Date:02/02/1013:43
DateReceived:02/05/10
Matrix:Aqueous
Client:Denison Mines USA Corp
Project:1st Quarter Groundwater
Lab 10:C10020229-002
Client Sample 10:MW-26
.._-....•__..,-_.
Analyses Result Units
MAJOR IONS
Carbonate as CQ3 ND mg/L
Bicarbonate as HC03 417 mg/L
Calcium 495 mg/L
Chloride 72 mg/L
Fluoride 0.29 mg/L
Magnesium 165 mg/L
Nitrogen,Ammonia as N 0.09 mg/L
Nitrogen,Nitrate+Nitrite as N 1.3 m9/L
Potassium 10.6 mg/L
Sodium 173 mglL
Sulfate 1840 mg/L
PHYSICAL PROPERTIES
pH 7.33 5.U.
Solids,Total Dissolved TDS @ 1ao c 3100 mglL
METALS·DISSOLVED
Arsenic ND ug/L
Beryllium ND ug/L
Cadmium ND u9/L
Chromium ND ug/L
Cobalt ND ug/L
Copper ND ug/L
Iron 485 ug/L
Lead ND ug/L
Manganese 1350 ug/L
Mercury ND ug/L
Molybdenum ND u9/L
Nickel ND ug/L
Selenium 9.1 ug/L
Silver ND ug/L
Thallium ND ug/L
Tin ND ug/L
Uranium 58.7 ug/L
Vanadium ND ug/L
Zinc ND ug/L
RADIONUCLIDES •DISSOLVED
Gross Alpha minus Rn &U 2.4 pCi/L
Gross Alpha minus Rn &U Precision (±)0.5 pCi/L
Gross Alpha minus Rn &U MOe 0.4 pCi/L
Qualifiers RL
D
D
D
MCU
QCL Method Analysis Date I By
Report
Definitions:
RL ~Analyte reporting limit.
OCL M Quality contrallimit.
MOe M Minimum detectable concentration
Mel·Maximum contaminant revel.
NO -Not detected at the reporting limit.
0-RL increased due to sample matrix interference.
ENERGYLABORATORIES,INC••2393SailCreek Highway (82601)•P.D.Box3256 •Casper,WY826021Jj'liilif(TollFree 888.235.0515 •301.235.0515 •Fax [phone] •[e-mail]·wwwenergylab.com
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
1st Quarter Groundwater
C10020229-002
MW-26
Revised Date:04/26/10
Report Date:02126/10
Collection Date:02/0211013:43
DateReceived:02105/10
Matrix:Aqueous
Analyses Result Units Qualifiers RL
Meu
QCL Method Analysis Date (By
DATAQUALITY
Ale Balance (t 5)
Anions
Cations
Solids,Total Dissolved Calculated
TDS Balance (0.80 -1.20)
-1.33
47.3
46.1
2980
1.04
%
meq/L
meq/L
mg/L
CalcUlation
Calculation
Calculation
Calculation
CalcUlation
02/24/1008:351 kbh
02/24/1008:351 kbh
02/24/10 08:35 Ikbh
02/24/10 08:351 kbh
02/24/1008:351 kbh
VOLATILE ORGANIC COMPOUNDS
Acetone NO ug/L 20
Benzene NO ug/L 1.0
Carbon tetrachloride NO ug/L 1.0
Chloroform 700 ugfL 100
Chloromethane NO ug/L 1.0
Methyl ethyl ketone NO ug/L 20
Methylene chloride 1.0 ug/L 1.0
Naphthalene NO ug/L 1.0
Toluene NO ug/L 1.0
Xylenes,Total NO ug/L 1.0
Sure 1,2~Oichtorobenzene-<l4 114 %REC 80·120
Surr;Dibromofluoromethane 127 %REC 70·130
Surr:p·Bromof!uorobenzene 109 %REC 80-120
Surr:Toluene--d8 96.0 %REC 80~120
•The reporting limitfor Chloroform reflects a 100 times dilution to bring the response into calibration range.
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
02/10/1019:031 wen
02/10/10 19:03/wen
02/10/10 19:031wen
02/10/10 19:381wen
02/10/10 19:03/wen
02/10/1019:03 (wen
02/10/10 19:03/wen
02110/10 19:03/wen
02/10/10 19:03 I wen
02/10/10 19'.031 wen
02/10/10 19:031 wen
02/10/10 19:03 I wen
02/10/10 19:03 I wan
02/10/10 19:031wen
Report
Definitions:
Rl ~Analyte reporting limit.
eCl •Quality control limit.
---------...~-
Mel ~Maximum contaminant level.
NO -Notdetected at the reporting limit.
ENERGYLABORATORIES,INC.·2393Sal/CreekHighway (82601)'PO Box3258 •Casper,WY826021IMfJ!fJ.1 ToIIFree888.235.0515·307.235.0515'Fax [phone]'[e-mail]·www.ener9ylab.com
LABORATORY ANALYTICAL REPORT
Client:
Project:
LabID:
Client Sample 10:
Denison Mines USA Corp
1st Quarter Groundwater
C10020458-004
MW-30
Revised Date:04/26/10
Report Date:03/15/10
Collection Date:02109/1015:26
DateReceived:02/12110
Matrix:Aqueous_•....~----_.._-_.•~_.._-_...--.__...__._-.•......._•..._---
Qualiflers RL
A2320 B 02112/1022:41/1jl
A2320 B 02/12/1022:41 Iljl
E200.7 03/01/1017:55/15
A4500·CI B 02/18/10 16:05 I dvg
A4500-F C 02116/10 11 :031 dvg
E200.7 03/01/1017:551 Is
A4500·NH3 G 02/23/10 13:24/jal
E353.2 02126/10 16:54 I jal
E200.7 03101/1017:55/15
E200.7 03/01/10 17:55 I Is
A4500·S04 E 03/03/1012:421dvg
Analyses Result Units
MAJOR IONS
Carbonate as C03 ND mglL
Bicarbonate as HC03 198 mglL
Calcium 251 mglL
Chloride 127 mglL
Fluoride 0.35 mglL
Magnesium 65.1 mg/L
Nitrogen,Ammonia as N ND mg/L
Nitrogen,Nitrate+Nitrite as N 16.1 mglL
Potassium 6.9 mg/L
Sodium 103 mg/L
Sulfate 767 mglL
PHYSICAL PROPERTIES
pH 7.49 s.u.
Solids,Total Dissolved TDS @ 180C 1510 mglL
METALS -DISSOLVED
Arsenic ND uglL
Beryllium ND ug/L
Cadmium ND ug/L
Chromium ND ug/L
Cobalt ND uglL
Copper ND uglL
Iron 86 ug/L
Lead ND ug/L
Manganese 43 ug/L
Mercury ND ug/L
Molybdenum ND ug/L
Nickel ND ug/L
Selenium 32.0 ug/L
Silver ND ug/L
Thallium ND uglL
Tin ND ug/L
Uranium 6.82 ug/L
Vanadium ND ug/L
Zinc 11 ugfL
RADIONUCLIDES -DISSOLVED
Gross Alpha minus Rn &U 0.6 pCi/L
Gross Alpha minus Rn &U Precision (±)0.4 pCi/L
Gross Alpha minus Rn &U MOC 0.5 pCi/L
D
D
D
D
1
1
1
1
0.10
0.5
0.05
0.2
0.5
1
30
0.01
10
5.0
0.50
0.50
25
10
10
30
1.0
10
0.50
10
20
5.0
10
0.50
100
0.30
15
10
MCL!
QCL Method
A4500-H B
A2540 C
E200.B
E200.8
E200.8
E200.8
E200.8
E200.8
E200.7
E200.8
E200.8
E200.8
E200.8
E200.8
E200.8
E200.8
E200.B
E200.B
E200.8
E200.8
E200.8
E900.1
E900.1
E900.1
Analysis Date f By
02/12/1014:31/1,
02/12/1014:47/1,
02116/10 22:52 I sml
02/16/1022:52 I sml
02/16/10 22:52/sml
02/16/1022:52 Isml
02/1611022:52 I sml
02/16/10 22:521 sml
03101/10 17:55/1s
02/16110 22:52/sml
02/16/10 22:52 18ml
02/16/10 22:52/sml
02/16/1022:521 sml
02/16110 22:52 Isml
02/16/1022:52 Isml
02116/10 22:52/sml
02/16/1022:521 sml
02116110 22:52 I sml
02/16/1022:52 I sml
02/16110 22:52/8ml
02/16/10 22:52 18ml
02127/1013:351 cg,
02/2711013:351 cg'
02/27/1013:351 cgr
•.-----------------_...•_._--_...•.•_.....-_.•..--
Report
Deflnitions:
Rl •Analyte reporting limit.
QCL·Quality control limit.
MDC •Minimum detectable concentration
Mel·Maximum contaminant level.
ND •Not detected at the reporting limit.
o •RL increased due to sample matrix interference.
JIi'ii ENERGYLABORATORIES,INC.•2393SailCreek Highway (82601)•Po.Box3258 •Casper,WY82602~.,milFree 888235.0515 •307.235.0515 •Fax [phone] •[e-mail]·www.energylab.com
LASORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sam pie 10:
Denison Mines USA Corp
15t Quarter Groundwater
C10020458-004
MW-30
Revised Date:04/26/10
Report Date:03/15110
Collection Date:02/09/10 15:26
DateReceived:02/12/10
Matrix:Aqueous
- -~-~._----~-~~.
Analyses Result Units Qualifiers RL
DATA QUALITY
AlC Balance (±5)-3.10 %
Anions 24.0 meq/L
Cations 22.5 meq/L
Solids,Total Dissolved Calculated 1500 mg/L
TDS Balance (0.80 -1.20)1.01
VOLATILE ORGANIC COMPOUNDS
Acetone NO uglL 20
Benzene NO ug/L 1.0
Carbon tetrachloride NO uglL 1.0
Chloroform NO ug/L 1.0
Chloromethane NO ug/L 1.0
Methyl ethyl ketone NO ug/L 20
Methylene chloride NO ug/L 1.0
Naphthalene NO ug/L 1.0
Toluene NO ug/L 1.0
Xylenes,Total NO ug/L 1.0
Surr:1,2~Dichlorobenzene·d4 111 %REC 80-120
Surr:Dibromofluoromethane 118 %REC 70-130
Surr:p·Bromofluorobenzene 110 %REC 80-120
Surr:Toluene-d8 98.0 %REC 80-120
Mew
QCL Method
Calculation
Calculation
Calculation
Calculation
Calculation
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
Analysis Dato I By
03/04/10 10:091 kbh
03/04/1010:091kbh
03/04/1010:091 kbh
03/04/10 10:09 I kbh
03/04/10 10:091 kbh
02/19/10 15:33/wen
02/19/10 15:331wen
02/19/10 15:33 /wen
02/19/1015:331 wen
02/19/1015:331 wen
02/19/10 15:331wen
02/19/10 15:331wen
02/19/10 15:331wen
02/19/10 15:331wen
02/19110 15:33/wen
02/19/10 15:331wen
02/19/10 15:33/wen
02119/10 15:33/wen
02/19/10 15:33/wen
--------._----
Report
Definitions:
RL •Analyte reporting limit.
QCL -Quality control limit,
Mel w Maximum contaminant levet.
NO -Not detected at the reporting tlmit.
ENERGY LABORATORIES,INC.•2393 Sail CreekHighway (82801)'Po.Box3258 •Casper,WI'82802lIIIIM_liJ_II_A_re_e_8._'88_.2._~_~_.(}'_'5_15_'_:J,_07._.2._~_~_.(}._'5_15_'_A_ax_3_0_7._.2._'3_4._18._"3_'9_._a_,,_sP_8_r_@_en_e_,fl._!!,_la_b_.w_m_._www_._en_e_1fl._!!'_IEl_b._w_m _
LASORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
1st Quarter Groundwater
C10020458-005
MW-31
Revised Date:04/26/10
Report Date:03/15/10
Collection Date:02/09/10 14:34
DateReceived:02/12/10
Matrix:Aqueous
_._--------_.,_...."-~."._---_.._-------~~".---_._.
MCW
Analyses Result Units Qualifiers RL QCL Method Analysis Date 1By
MAJOR IONS
Carbonate as C03 ND mg/L 1 A2320 B 02/1211022:491 Iii
Bicarbonate as HC03 224 mg/L 1 A2320 B 0211211022:49 I Iii
Calcium 170 mglL 0.5 E200.7 03/0111018:08115
Chloride 128 mg/L 1 A4500-CI B 02/18/10 16:08/dvg
Fluoride 0.88 mg/L 0.10 A4500-F C 02/16/10 11:06 I dvg
Magnesium 80.2 mg/L 0.5 E200.7 03/01/1018:08 I Is
Nitrogen,Ammonia as N ND mg/L 0.05 A4500-NH3 G 02/2311013:32 Iial
Nitrogen,Nitrate+Nitrite as N 21.7 mg/L D 0.2 E353.2 02/26/10 17:04 Iial
Potassium 6.2 mg/L 0.5 E200.7 03/0111018:08/15
Sodium 92.2 mg/L D 0.6 E200.7 03/01/1018:08I Is
Sulfate 507 mg/L D 6 A4500-S04 E 03/03/10 12:54/dvg
PHYSICAL PROPERTIES
pH 7.64 s.u.0.01 A4500-H B 02/12/10 14:34/lr
Solids,Total Dissolved TOS @ 180 C 1150 mg/L 10 A2540 C 02/12/1014:47 I Ir
METALS·DISSOLVED
Arsenic ND ug/L 5.0 E200.8 02/16/1022:59 I sml
Beryllium ND ug/L 0.50 E200.8 02116/1022:59 I sml
Cadmium ND ug/L 0.50 E200.8 02/16/1022:59 I sml
Chromium ND ug/L 25 E200.8 02/16/1022:59 Isml
Cobalt ND ug/L 10 E200.8 02/16/10 22:59 Isml
Copper ND ug/L 10 E200.8 02/1611022:59 I sml
Iron ND ugiL 30 E200.7 03/01l1D 18:08 I Is
Lead ND ug/L 1.0 E200.8 02116/1022:59 I sml
Manganese ND ug/L 10 E200.8 02/16/1022:59 I sml
Mercury ND ug/L 0.50 E200.8 02116/1022:59 Isml
Molybdenum ND ug/L 10 E200.8 02/16/1022:59 Isml
Nickel ND ug/L 20 E200.8 02/16/1022:59 I sml
Selenium 60.8 ug/L 5.0 E200.8 02116110 22:59 I sml
Sillier ND ugiL 10 E200.8 02/16/1022:59I sml
Thallium ND ug/L 0.50 E200.8 02/16/1022:59I sml
Tin ND ug/L 100 E200.8 02/16/10 22:591sml
Uranium 7.12 ug/L 0.30 E200.8 02/16/1022:59I sml
Vanadium ND ug/L 15 E200.8 02116/1022:59/sml
Zinc ND ug/L 10 E200.8 02116/1022:59/sml
RADlONUCLIDES -DISSOLVED
Gross Alpha minus Rn &U 0.7 pCi/L E900.1 02/27/1015:09 I cgr
Gross Alpha minus Rn &U Precision (±)0.4 pCi/L E900.1 02127/1015:09 I cgr
Gross Alpha minus Rn &U MOe 0.5 pCilL E900.1 02/27/10 15:09 I cgr
..-~._-~._-_._--_..._-._....------~----
Report RL -Analyte reporting limit.MGL ~Maximum contaminant level,
OefinitJons:aCL .Quality control limit.NO -Not detected at the reporting limit.
MOe·Minimum detectable concentration o .RL increased due to sample matrix interference.
ENERGYLABORATORIES,INC••2393SailCreek Highway (82801)•Po.Box3258 •Casper,WY82802
TollFree 888.235.05/5 •307.235.05/5 •Fax [phone] •[e-mail]·wwwenergylab.com••---------------------------
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
ClientSample 10:
Denison Mines USA Corp
1st Quarter Groundwater
C10020458-005
MW-31
Revised Date:04/26/10
Report Date:03/15/10
Collection Date:02109/1014:34
DateReceived:02/12/10
Matrix:Aqueous
~~~~~.••"'-"."._.•._-------
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date I By
DATA QUALITY
NC Balance (±5).0.487 %Calculation 0310411010:10 I kbh
Anions 19.4 meq/L Calculation 03/04/1010:10/kbh
Cations 19.3 meq/L Calculation 03104/10 10:10 I kbh
Solids,Total Dissolved Calculated 1200 mg/L Calculation 03/04110 10:10I kbh
TDS Balance (0.80 -1.20)0.960 Calculation 03/0411010:10/kbh
VOLATILE ORGANIC COMPOUNDS
Acetone NO ug/L 20 SW8260B 02119/10 16:09I wen
Benzene NO U91L 1.0 SW8260B 02119110 16:091 wen
Carbon tetrachloride NO uglL 1.0 SW8260B 02/19110 16:09/wen
Chloroform NO ug/L 1.0 SW8260B 02119/10 16:091 wen
Chloromethane NO ug/L 1.0 SW8260B 02119/10 16:091wen
Methyl ethyl ketone NO uglL 20 SW8260B 02/19110 16:091 wen
Methylene chloride NO uglL 1.0 SW8260B 02/19110 16:091wen
Naphthalene NO ug/L 1.0 SW8260B 02/19/10 16:09/wen
Toluene NO uglL 1.0 SW8260B 02/19110 16:09/wen
Xylenes,Total NO ug/L 1.0 SW8260B 02/19/10 16:09 I wen
Surr:1.2M Dichlorobenzene-d4 111 %REC 80-120 SW8260B 02/19110 16:09 I wen
Surf:OibfOmofluoromethane 120 %REC 70·130 SW8260B 02/19110 16:09 I wen
Surr:p-Bromofluorobenzene 108 %REC 80-120 SW8260B 02/19110 16:09/wen
Surr;Toluene-dB 99.0 %REC 80-120 SW8260B 02/19/10 16:09/wen
Report
Definitions:
RL •Analyte reporting limit.
QCl.Quality control limit.
MCl·Maximum contaminant level.
NO •Not detected at the reporting limit.
ENERGYLABORATORIES,INC.·2393Sal/Creek Highway (8260/)•AD.Box 3258 •Casper,WY82602/ISlff;18 Toll Free 888235.05/5 •307.235.05/5 •Fax [phone] •[e-mail]
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
1st Quarter Groundwater
C10020458-006
MW-65
...._-_._-
Revised Date:04/26/10
Report Date:03/15/10
Collection Date:02/09/10 14:34
DateReceived:02/12/10
Matrix:Aqueous
MCLJ
Analyses Result Units Qualifiers RL QCL Method Analysis Date f By
MAJOR IONS
Carbonate as C03 NO mg/L 1 A2320 B 02/12/10 22:57 I Iii
Bicarbonate as HC03 226 mg/L 1 A2320 B 02/12/10 22:571 Iii
Calcium 167 mg/L 0.5 E200.7 03/01/10 16:12/1s
Chloride 130 mg/L 1 A4500-CI B 02118/10 16:121 dvg
Fluoride 0.65 mg/L 0.10 A4500-F C 02116/10 11:16/dvg
Magnesium 79.6 mg/L 0.5 E200.7 03101/10 16:12/1s
Nitrogen,Ammonia as N NO mg/l 0.05 A4500·NH3 G 02/23/1013:341 ial
Nitrogen,Nitrate+Nitrite as N 22.3 mg/L 0 0.2 E353.2 02/26/1017:061 ial
Potassium 6.1 mg/L 0.5 E200.7 03/01/1016:121 Is
Sodium 92.3 mg/L 0 0.6 E200.7 03/01/1018:121 Is
Sulfate 507 mg/L 0 6 A4500-S04 E 03/03/1012:56 I dvg
PHYSICAL PROPERTIES
pH 7.63 $.U.0.01 A4500·H B 02/12/10 14:39/1r
Solids,Total Dissolved TDS @ 180 C 1160 mg/L 10 A2540 C 02/12/10 14:46/1r
METALS -DISSOLVED
Arsenic NO ug/L 5.0 E200.8 02/16/10 23:06 I sml
Beryllium NO ug/L 0.50 E200.6 02/16/1023:061 sml
Cadmium NO ug/L 0.50 E200.6 02/16/10 23:06/8ml
Chromium NO ug/L 25 E200.6 02/16/1023:06 I sml
Cobalt NO ug/L 10 E200.8 02/16/10 23:061 sml
Copper NO ug/L 10 E200.6 02/16/1023:061 sml
Iron NO ug/L 30 E200.7 03/01/10 18:12/1s
Lead NO ug/L 1.0 E200.6 02116/1023:061 sml
Manganese NO ug/L 10 E200.6 02/16/1023:061 sml
Mercury NO ug/L 0.50 E200.8 02/16/10 23:061 sml
Molybdenum NO ug/L 10 E200.6 02/16/10 23:061 sml
Nickel NO ug/L 20 E200.8 02/16/10 23:061 sml
Selenium 60.4 ug/L 5.0 E200.6 0211611023:061 sm!
Silver NO ug/L 10 E200.6 02/16/1023:061 sml
Thallium NO ug/L 0.50 E200.8 02/16/1023:061 sml
Tin NO ug/L 100 E200.8 02116/1023:061 sml
Uranium 7.07 ug/L 0.30 E200.8 02116/1023:061 sml
Vanadium NO ug/L 15 E200.6 02/16110 23:06/sml
Zinc NO ug/L 10 E200.6 02f16/1Q 23:06/8ml
RADIONUCLIOES -DISSOLVED
Gross Alpha minus Rn &U O.g pCi/L E900.1 02/27/1015:091 cgr
Gross Alpha minus Rn &U Precision (±)0.5 perIL E900.1 02127/10 15:09/cgr
Gross Alpha minus Rn &U MOe 0.5 pei/l E900.1 02127/1015:091 cgr
"'"'._--~~-"_...-.._._~-_._--_...__.__._----_.~-'-----~.._--~---_.~-
Report RL ~Analyte reporting limit.Mel -Maximum contaminant fevel.
Definitions:QCL •Quality control limit.NO·Not detected at the reporting limit.
MOe w Minimum detectable concentration o •RL increased due to sample matrix interference.
ENERGYLABORATORIES,INC.•2393Sail Creek Highway(82601)•P.0.Box 3258 •Casper,WY82602/lSi.7011Free 888.235.05/5 •307.235.05/5 •Fax [phone] •[e-mail]·www.energylab.com
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
ClientSample 10:
Denison Mines USA Corp
1st Quarter Groundwater
C10020458-006
MW-65
Revised Date:04/26/10
Report Date:03/15/10
Collection Date:02109/1014:34
DateReceived:02/12/10
Matrix:Aqueous
........-._-_.-----------_...._._-'---~--
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date I By
DATA QUALITY
Ale Balance (±5)-1.35 %Calculation 03/04/1010:101kbh
Anions 19.6 meq/L Calculation 03/04/10 10:10 I kbh
Cations 19.0 meq/L Calculation 03/0411010:10/kbh
Solids,Total Dissolved Calculated 1200 mg/L Calculation 0310411010:101kbh
TOS Balance (0.80 -1.201 0.980 Calculation 0310411010:101kbh
VOLATILE ORGANIC COMPOUNDS
Acetone NO uglL 20 SW8260B 02/19110 16:44/wen
Benzene NO ug/L 1.0 SW8260B 02/19/10 16:44/wen
Carbon tetrachloride NO ug/L 1.0 SW8260B 0211911016:44 twen
Chloroform NO uglL 1.0 SW8260B 02/19/1016:44/wen
Chloromethane NO uglL 1.0 SW8260B 02119/10 16:44 I wen
Methyl ethyl ketone NO ug/L 20 SW8260B 02/19/10 16:44 I wen
Methylene chloride NO uglL 1.0 SW8260B 02/19110 16:44/wen
Naphthalene NO uglL 1.0 SW8260B 02/19/1016:441 wen
Toluene NO uglL 1.0 SW8260B 02/19110 16:44/wen
Xylenes,Total NO ugiL 1.0 SW8260B 02119/10 16:441wen
Surr:1,2·Dichlorobenzene·d4 108 %REC 80-120 SW8260B 02/19110 16:441wen
Surr:Dibromofluoromethane 119 %REC 70-130 'SW8260B 02/19110 16:441wen
Surr:p.Bromofluorobenzene 109 %REC 80-120 SW8260B 02/19/10 16:44/wen
Surf:Toluene-d8 98.0 %REC 80-120 SW8260B 02119110 16:441wen
Report
Definitions:
RL •Analyte reporting limit.
QCl·Quality control limit.
MCl·Maximum contaminant level.
NO·Not detected at the reporting limit.
ENERGYLABORATORIES,INC••2393SailCreek Highway (82601)•P.D.Box 3258 •Casper,WY82602.lIiIff,1Ii(TollFree 888,235.0515 •307.235.0515 •Fax 307.234,11J39 •casper@energylab,com'www:energylab,com
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
ClientSample 10:
Denison Mines USA Corp
1sl Quarter Groundwater
C10020229·004
Trip Blank
Revised Date:04/26110
Report Date:02/26/10
Collection Date:02103110
DateReceived:02/05110
Matrix:Aqueous
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date I By
VOLATILE ORGANIC COMPOUNDS
Acetone NO uglL 20 SW6260B 02110/10 16:27 I wen
Benzene NO uglL 1.0 SW6260B 02110110 16:27 I wen
Carbon tetrachloride NO ug/L 1,0 SW6260B 02110/10 16:27 I wen
Chloroform NO ug/L 1.0 SW6260B 0211 011 0 18:27 /wen
Chloromethane NO uglL 1,0 SW6260B 02110110 16:27/wen
Methyl ethyl ketone NO ug/L 20 SW6260B 02110110 16:271wen
Methylene chloride NO ug/L 1,0 SW6260B 02/10110 16:27 I wen
Naphthalene NO ug/L 1.0 SW6260B 02/10/1016:271 wen
Toluene NO ug/L 1.0 SW6260B 02/10/10 16:27/wen
Xylenas,Total NO ug/L 1.0 SW6260B 02/10/10 16:27/wen
Surr:1,2~Oichlorobenzene..{j4 113 %REC 60·120 SW6260B 02/10110 16:27/wen
Sure Dlbromofluoromethane 122 %REC 70·130 SW6260B 02/10110 16:27/wen
Surr:p·Bromofluorobenzene 110 %REC 60·120 SW6260B 02/10/10 18:27/wen
Surr:Toluene-d8 100 %REC 60·120 SW6260B 02/10110 16:271wen
Roport.
Definitions:
RL -Analyte reporting limit,
QCL •Quality control limit.
MeL -Maximum contaminant level.
NO ~Not detected at the reporting limit.
ENERGYLABORATORIES,INC.•2393Sail Creak Highway (8260Jj.'p.D.Box3258 •Casper,WY82602fJ£;1fiJ.1 liJll Free 888.2Jii0515 •307,23ii0515 •Fax 307,234.1639 •casper energylab.com·www.energylab.com
LASORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
1sl Quarter Groundwater
C10020458-007
Trip Blank
Revised Date:04/26/10
ReportDate:03/15/10
Collection Date:02/11/10
DateReceived:02/12/10
Matrix:Aqueous
MCL!
Analyses Result Units Qualifiers RL QCL Method Analysis DateJBy
VOLATILE ORGANIC COMPOUNDS
Acetone NO ug/L 20 SW8260B 02/19/10 17;19/wen
Benzene NO ug/L 1.0 SW8260B 02119/10 17:19/wen
Carbon tetrachloride NO ug/L 1.0 SW8260B 02119/10 17:19/wen
Chloroform NO ug/L 1.0 SW8260B 02/19/10 17:19/wen
Chloromethane NO ugfL 1.0 SW8260B 02/19/10 17:19/wen
Methyl ethyl ketone NO uglL 20 SW8260B 02/19110 17:19/wen
Methylene chloride NO ug/L 1.0 SW8260B 02119/10 17:19/wen
Naphthalene NO ug/L 1.0 SW8260B 02/19/10 17:191 wen
Toluene NO ugfL 1.0 SW8260B 02/19/10 17:19/wen
Xylenes,Total NO ug/L 1.0 SW8260B 02/19/1017:19/wen
Surr:1,2·0ichlorobenzene-d4 108 %REC 80-120 SW8260B 02/19/10 17:19/wen
Surr:Oibromofluoromethane 123 %REC 70-130 SW8260B 02/19/10 17:19/wen
SUff'.p~Bromofluorobenzene 112 %REC 80·120 SW8260B 02119/10 17:191 wen
Surf:Toluene..<f8 98.0 %REC 80·120 SW8260B 02/19/10 17:19fwen
----_._-__._-----__--_._.__.--_._----_.~---
Report
Definitions:
Rl .Analyte reporting limit.
QCl w Quality control limit.
Mel -Maximum contaminant laveL
NO·Not detected at the reporting Iimi!.
lUiirtm ENERGYLABORATORIES,INC.•2393 Sail CreekHighway(82601)•P.D.Box 3258 •Casper,WY82602~Toll Free 888.2350515 •301.2350515 •Fax [phone] •[e-mail]·wwwenergylab.com
ANALYTICAL SUMMARY REPORT
April 26,2010
Denison Mines USA Corp
6425 S Hwy 191
Blanding,UT 84511
Workorder No.:C10020458 Quote ID:C1640 -pac Wells I Monthly Groundwater Sampling
Project Name:1st Quarter Groundwater _-_-----
Energy Laboratories,Inc.received the following 7 samples for Denison Mines USA Corp on 2/12/2010 for analysis.----_."----"._._......~
===_...._-.~"...._...=======Test
SW8260B vacs,Standard List
Same As Above
Same As Above
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 vacs,Standard List--_._-_..._-
Same As Above
Aqueous Same As Above
Aqueous
Aqueous
Aqueous
Aqueous
Aqueous
--_.._...--_...--_._--._.---
Aqueous Same As Above
02/10/10 11 :41 02/12/10
Collect Date Receive Date MatrixClientSample10
C10020458-001 MW·11
_._.__._--,---.--
C10020458-002 MW-20 02/11/1008:0002/12/10
..._~._--------_._-----------
C10020458-003 MW-22 02/08/1014:0602/12/10
C10020458-004 MW-30 02/09/1015:2602/12/10
-....._..._•.-.
C10020458-005 MW-31 02/09/1014:3402/12/10
C10020458-006 MW-65 02/09/10 14:34 02/12/10
C10020458·007 Trip Blank 02/11/1000:00 02/12/10
Sample ID
Any exceptions or problems with the analyses are noted in the Laboratory Analytical Report,the QAlQC Summary
Report,or the Case Narrative.
The results as reported relate only to the item(s)submitted for testing.
If you have any questions regarding these test results,please call.
Report Approved By:
ENERGYLABORATORIES,INC.•2393SailCreek Highway (82601)•Po.Box 3258 •Casper,WY82602IIIliIfl(_TO_II_A_re_e_8_'8_'8._23_o._.0_'5_15_'_J,_07._.2._~_'5_.a_'5_15_'_A_ax_30_7._.2._'3_4._I~_9_'_ca_s_pe_r_@_e_'fIe_rrJ._%_'ab_.co_m_._www.__.e_'fIe_r9_~_la_b_.c_om _
CLIENT:Denison Mines USA Corp
Project:1st Quarter Groundwater
Sample Delivery Group:C10020458
Revised Date:04/26/10
Report Date:03/15/10
CASE NARRATIVE
REVISED/SUPPLEMENTAL REPORT
The attached analytical report has been revised from a previously submitted report due to Ihe request by JoAnn Tischler for
the following corrections:Carbonate and Bicarbonate RL changed to 1 mg/L on all samples;Iron reported by Method 200.7
on all samples;D flag added to the Nitrate +Nitrite result on samples -002,-004,-005,and -008.
ORIGINAL SAMPLE SUBMITTAL(S)
All original sample submittals have been returned with the data package.
SAMPLE TEMPERATURE COMPLIANCE:4°C (±2°C)
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 ALPHAANALYSIS
Method 900.0 for gross aipha and gross beta is intended as a 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 (2 days).The time deiay 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 8 days.
SOIUSOLID SAMPLES
All samples reported on an as received basis unless otherwise indicated.
ATRAZiNE,SIMAZINE AND PCB ANALYSIS
Data for PCBs,Atrazine and Simazine are reported from EPA 525.2.PCB data reported by ELI reflects the results for seven
individual Aroclors.'NIlen the results for ali seven are ND (not detected),the sampie meets EPA compliance criteria for
PCB monitorin9.
SUBCONTRACTING ANALYSIS
SUbcontracting of sample analyses to an outside iaboratory 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.-Giliette,VVY
eli~h -Energy Laboratories,Inc.~Helena,MT
elk-Energy Laboratories,Inc.-Rapid City,SD
eli-t -Energy Laboratories,inc.-College Station,TX
CERTIFICATIONS:
USEPA:VVYOOOO2,Radiochemical VVY00937;FL-DOH NELAC:E87641,Radiochemical E871017;California:02118CA;
Oregon:VVY200001;Utah:3072350515;Virginia:00057;Washington:C1903
ISO 17025 DISCLAiMER:
The results ofthis Analytical Report relate only to the items submitted for analysis.
ENERGY LABORATORIES,INC.-CASPER,VVY certifies that certain method seiections contained in this report meet
requirements as set forth by the above accrediting authorities.Some results requested by the client may not be covered
un"der these certifications.All analysis data to be submitted for regUlatory enforcement should be certified in the sample
state oforigin.Please verify ELI's certification coverage by visiting www.energyiab.com
ELI appreciates the opportunity to provide you with this analytical service.For additional information and services visit our
web page www.energylab.com.
--.------_._---
Revised Date:04/2611 0
Report Date:03/15/10
Work Order:C10020458
Denison Mines USA Corp
1st Quarter Groundwater
Client:
Project:
mtlf~tJ'ENERGYLABORATORIES,INC••2393SaltCreekHighway(8260Jj,•PO.Box3258 •Casper,WY82602~f1,;;ToIIFree888.235.05t5·301.235.0515'Fax301.234.f639·casper energyfab.com·www.energylab.com
QAlQC Summary Report
I~nalyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method:A2320 B
Samplelo:MBLK
Alkalinity,Total as CaC03
Carbonate as C03
Bicarbonate as HC03
~Method Blank
3 mglL
NO mg/L
3 mg/L
Run:MANTECH_l002128
8atch:R129630
02112/1015:15
Sample 10:LCSl
Alkalinity,Total as CaC03
Sample 10:LCS
Alkalinity,Total as CaC03
Sample 10:Cl0020458·006AMS
Alkalinity,Total as CaC03
Sample 10:Cl0020458·006AMSo
Alkalinity,Total as CaC03
Laboratory Control Sample
207 mg/L
Laboratory Control Sample
54.4 mglL
Sample Matrix Spike
318 mglL
Sample Matrix Spike Duplicate
317 mg/L
Run:MANTECH_1002128 02112110 15:29
5.0 102 90 110
Run:MANTECH_l002128 0211211015:38
5.0 103 90 110
Run:MANTECH_l002128 02112/10 23:06
5.0 106 80 120
Run:MANTECH_1002128 02/12/10 23:15
5.0 106 80 120 0.1 20
Qualifiers:
RL ~Analyte reporting limit.
MOe -Minimum detectable concentration
NO .Not detected at the reporting limit.
ENERGYLABORATORIES,INC.•2393SailCreekHighway(82601)•P.o.Box3258 •Casper,WY82602/Ill.milFree 888.2350515 •301.235.0515 •Fax [phone] •[e-mail]·www.energylab.com
Client:
Project:
Denison Mines USA Corp
1st Quarter Groundwater
QA/QC Summary Report
Revised Date:04/26/10
Report Date:03/15/10
Work Order:C10020458
._------~..__..__.~.~.._---_....--•.-----....._----_..._--
Analyte Count Result Units RL %.REC Low Limit High Limit RPD RPOLimit Qual
Method:A254<l C Balch:100212_1_SLDS·TDS·W
Sample 10:MBLK1_l00212 Method Blank Run:BAL·l_100212B 02/12/1014:38
Solids,Total Dissolved TOS @ 180 C NO mglL 10
Sample 10:LCS1_l00212 Laboratory Control Sample Run:BAL·1_100212B 02/12/1014:38
Solids,Total Dissolved TOS @ 180 C 999 mgfL 10 100 gO 110
Sample 10:Cl0020310-o02BMS Sample Matrix Spike Run:BAL~1 100212B 02/12/1014:44
Solids,Total Dissolved TOS@ 180 C 3040 mg/L 10 103 90 110
Sample 10:Cl0020310·002BMSO Sample Matrix Spike Duplicate Run BALw 1-100212B 02112/1014:44
Solids,Total Dissolved TDS @ 180 C 3110 mg/L 10 106 90 110 2.2 10
Sample 10:C10020458·006AMS Sample Matrix Spike Run:BAL-1 100212B 02112/1014:48
Solids,Total Dissolved TDS @ 180 C 3250 mglL 10 103 90 110
Sample 10:Cl0020458·006AMSO Sample Matrix Spike Duplicate Run:BAL·l-100212B 02/12/1014:48
Solids,Total Dissolved TDS @ 180 C 3200 mg/L 10 101 90 110 1.4 10
Qualifiers:
RL .Analyle reporting limit.
MOe -Minimum detectable concentration
'~_..'--_.-~~
NO -Not detected at the reporting limit.
ENERGYLABORATORIES,INC••2393 Sail Creek Highway(8260I)'p.D.Box 3258 •Casper,WY82602
TollFree 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·www.energylab.com
Client:
Project:
Denison Mines USA Corp
1st Quarter Groundwater
QA/QC Summary Report Revised Date:04/26/10
Report Date:03115110
Work Order:C10020458
.".....-~--_._--'.--_..----.-_.-.....-------_.._._-'.-_...-----
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLlmlt Qual
Method:A4500·CI B Batch:100218·CL·TTR·W
SamplelD:MBLK9·100218 Method Blank Run:TITRATION_100218A 02/18/1015:38
Chloride NO mg/L 0.4
Sample 10:C10020458·001AMS Sample Matrix Spike Run:TITRATION_100218A 02/18/1016:35
Chloride 220 mg/L 1.0 105 gO 110
Sample 10:C10020458·001AMSO Sample Matrix Spike Duplicate Run:TITRATION_100218A 02/18/1016:36
Chloride 218 mg/L 1.0 104 gO 110 0.8 10
Sample 10:LCS35·100218 Laboratory Control Sample Run:TITRATION_100218A 02/18/1016:47
Chloride 3720 mg/L 1.0 105 gO 110
NO·Not detected at the reporting limit.
-_.._-_---
Qualifiers:
RL .Analyte reporting limit.
MOe M Minimum detectable concentration
...___-__.._-__-
ENERGYLABORATORIES,INC.•2393 Salt CreekHighway (8260I)'p.Oo Box 3258 •Casper,WY82602uaSf_TiJ_I/_A_,e_e_{j_'8_'8_23_'5_.o._1j_15_'_J,_O_7.Z_~_'5_.o._1j_15_'_A_ax_30_7._.Z_'3_4._1_63_'9_'_C8_s_pe_,_@_e_n8_r!!._'Y!._"_b_.c_om_'_WlI'w.__.e_ne_"_Yy/._ab_.co_m _
....•.___-_.-.•.._~~_.__..__._---_.._..-•...----,
Client:
Project:
Denison Mines USA Corp
1st Quarter Groundwater
QA/QC Summary Report
Revised Date:04/26/10
Report Date:03/15/10
Work Order:C10020458
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLlmlt Qual
Method:A4500-F C
Sample10:MBLK
Fluoride
Sample10:LCS
Fluoride
Sample 10:C10020451-001CMS
Fluoride
Sample 10:C1 0020451-1101CMSO
Fluoride
Sample 10:C10020472·003BMS
Fluoride
Sample 10:C10020472·003BMSO
Fluoride
Method Blank
NO mg/L
Laboratory Control Sample
1.00 mglL
Sample Matrix Spike
1.40 mglL
Sample Matrix Spike Duplicate
1.37 mglL
Sample Matrix Spike
1.75 mglL
Sample Matrix Spike Duplicate
1.75 mg/L
Run:MANTECH_100216A
0.05
Run:MANTECH_100216A
0.10 100 90 110
Run:MANTECH_100216A
0.10 107 80 120
Run:MANTECH_100216A
0.10 104 80 120
Run:MANTECH_100216A
0.10 102 80 120
Run:MANTECH_100216A
0.10 102 80 120
2.2
o
Batch:R129674
02/16/10 10:32
02116/1010:35
02/16/1010:46
02/16/1010:49
10
02/16/1011:35
02/16110 11:38
10
Qualifiers:
RL •Anaryte reporting limit,
MOe·Minimum detectable concentration
NO •Not detected at the reporting limit.
.~-~._-_._-_..
"tta ENERGYLABORATORIES,INC.'2393SailCreekHighway(82601)•P.O,Box 3258 •Casper,WY82602~_To_II_fi_re_e_8_8_1J._2._'35._,o._5~1_5_'_3<_O_7._23._5._,o._'5_1_5_'_fi_ax_3._07._,2._'3_~_.1_63._'9_'_C8_s_'Pe_r_@_B_lB_1{1_!!,_la_b_,,,,,_m_,_www__.e_"_e"_!/l'_18_b_.c_om _
Client:
Project:
Denison Mines USA Corp
1st Quarter Groundwater
QA/QC Summary Report Revised Date:04/26/10
Report Date:03115/10
Work Order:C10020458
Analyte Count Result Units RL %REC low limit High Limit RPO RPOLimlt Qual
Method:A4500·H B
Sample 10:ICV1_l00212_2
pH
Initial Calibration Verification Standard
6.84 S.u.0.010 100 98
Analytical Run:ORION555A·2_100212B
02112/1013:46
102
Method:A4500·H B
Sample 10:Cl0020458·005AOUP
pH
Sample Duplicate
7.63 s.u.0.010
Batch:100212_2_PH·W_555A·2
Run:ORION555A·2_100212B 02/12/1014:36
0.1 10
-------_....-_.---_.._.._-_._--_...•.._----_...•._-_.
Qualifiers:
RL .Analyte reporting limit.
MDe -Minimum detectable concentration
NO -Not detected at the reporting limit.
ENERGYLABORATORIES,INC.•2393 Salt CreekHighway (82601)•Ao.Box 3258 •Casper,WY82602JIiJJ._7iJ_II_A_r8_8_[j_'8_1J._2:J_'5:_.o._~_15_'_:J_1J_7.2._~_'5:_.a_~_15_'_H_ax_30_7._.2._3_4._1_6:J_9_'_ca_s_'P8_{_@_etl_8_{9._'Y!._'ab_.CO_ffl_'_WWlY.__.8_1l8_{9._'I'_la_b_.CO_ffl _
Client:
Project:
Denison Mines USA Corp
1st Quarter Groundwater
QA/QC Summary Report
Revised Date:04/26/10
Report Date:03/15/10
Work Order:C10020458
.__.__...-_.•.-~'---'_.----_._-------_...-----._,---_..._---_._._._.._.._--~-
Analyt.Count Result Units RL %REC Low LImit High Limit RPD RPDLlmit Qual
Method:A4500-NH3 G 8atch:R129921
Sample 10:M6LK-1 Method Blank Run:TECHNICON_1002236 02/23/1012:43
Nitrogen,Ammonia as N NO mg/L 0.02
Sample 10:LCS·2 Laboratory Control Sample Run:TECHNICON_1002238 02/23/10 12:44
Nitrogen,Ammonia as N 19.0 mg/L 0.20 95 80 120
Sample 10:C10020458-004DMS Sample Matrix Spike Run:TECHNICON_1002236 02/23/1013:26
Nitrogen,Ammonia as N 1.85 mg/L 0.050 93 80 120
SamplelD:C10020458-004DMSD Sample Matrix Spike Duplicate Run:TECHNICON_1002238 02/23/10 13:28
Nitrogen,Ammonia as N 1.80 mg/L 0.050 90 80 120 2.7 20
--_..•_-_•..•..--_...•
Qualifiers:
RL -Analyte reporting limit.
MDC .Minimum detectable concentration
ND -Not detected at the reporting limit.
ENERGYLABORATORIES,INC.•2393Sail Creek Highway(82601)•P.D.Box3258 •Casper,WY82602!J£IifIIi(Toll Free 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·www.energylab.com
Client:
Project:
Denison Mines USA Corp
1st Quarter Groundwater
QA/QC Summary Report
-----.---.----
Revised Date:04/26110
Report Date:03/15/10
Work Order:C10020458
Analyte Count Result Units RL %REC Low limit High Limit RPO RPOLlmil Qual
Method:A4500-S04 E
Sample 10:LCS-1.100303
Sulfate
Sample 10:MBLK-l.100303
Sulfate
Sample 10:C10020458-004AMS
SUlfate
Sample10:Cl0020458·004AMSO
Sulfate
Balch:100303.1.S04-TURB-W
Laboratory Control Sample Run:TURB·2_1 00303A 03/03/1012:17
4970 mg/L 59 103 90 110
Method Blank Run:TURB-2_100303A 03/03/1012:18
NO m9/L 0.6
Sample Matrix Spike Run:TURB-2_100303A 03/03/10 12:48
1730 mg/L 30 101 90 110
Sample Matrix Spike Duplicate Run:TURB·2_100303A 03/03/1012:50
1770 m91L 30 104 90 1I 0 1.9 10
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
---.._-_.......
NO -Not detected at the reporting limit.
ii ENERGYLABORATORIES,INC.,2393SaltCreek Highway (82601),P.o.Box3258 'Casper,WY82602_W_70_II_A_re_e_B_B_'8._23_~_.O_5_15_'_3_0_7._23._~_.O_5_15_'_A_ax_30_7._.2_'3_4._163_:9_'_ca_S_P8_r_@_8_"e_rg_yl._8_b_.c_om_,_www.__.8_"8_,g_yl._8_b_.c_om _
Client:Denison Mines USA Corp
Project:1st Quarter Groundwater
QA/QC Summary Report Revised Date:04/26/10
Report Date:03/15110
Work Order:Cl0020458
,._._--_.._--_.._--_....
Analyte Count Result Units RL %REC Low limit High Limit RPO RPOLimit Qual
Method:E200.7 Balch:R130169
Sample 10:MB·l00301A §Method Blank Run:ICP2·C_l00301A 03/01/1014:37
Calcium NO mg/L 0.2
Iron 0.004 mg/L 0.002
Magnesium NO mg/L 0.05
Potassium NO mg/L 0.02
Sodium NO mg/L 0.3
SamplelO:LFB·l00301A §Laboratory Fortified Blank Run:ICP2·C_l00301A 03/01/1014:41
Calcium 49.8 mg/L 0.50 98 85 115
Iron 0.959 mg/L 0.030 94 85 115
Magnesium 47.2 mg/L 0.50 93 85 115
Potassium 47.5 mg/L 0.50 93 85 115
Sodium 49.5 mg/L 0.50 97 85 115
Sample10:Cl0020458·004BMS2 §Sample Matrix Spike Run:ICP2-C_l00301A 03/01/1017:59
Calcium 489 mg/L 1.1 95 70 130
Iron 4.89 mg/L 0.030 96 70 130
Magnesium 306 mg/L 1.0 96 70 130
Potassium 243 mg/l 1.0 95 70 130
Sodium 345 mg/L 1.4 97 70 130
Sample10:Cl0020458-004BMSO §Sample Matrix Spike Duplicate Run:ICP2-C_l00301A 03/01/1018:03
Calcium 500 mg/L 1.1 100 70 130 2.1 20
Iron 4.99 mg/L 0.030 98 70 130 1.9 20
Magnesium 301 mg/L 1.0 94 70 130 1.7 20
Potassium 240 mg/L 1.0 93 70 130 1.6 20
Sodium 353 mg/L 1.4 100 70 130 2.2 20
Qualifiers:
RL .Analyte reporting limit.
MDC -Minimum detectable concentration
NO .Not detected at the reporting limit.
ENERGYLASORATORIES,INC.•2393Sail Creek Highway (82800 •P.O,Box 3258 •Casper,WY82602JIlI,f!i[(ToIIFree888.235.0515·307.235.0515·Fax307.234,1839·casper@energylab,com·www.energylab,com
Client:
Project:
Denison Mines USA Corp
1sl Quarter Groundwater
QA/QC Summary Report
Revised Date:04/26/10
Report Date:03/15110
Work Order:C10020458
._._-----_.,--
Analyte Count Result Units RL %REC Low Limit High Limit RPD RPOLimit Qual
Method:E200.B
Sample 10:LRB
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Tin
Uranium
Vanadium
Zinc
:ill Method Blank
NO
ND
NO
NO
NO
ND
NO
NO
7E-05
0.0005
NO
5E-05
0.0001
NO
NO
0.0002
NO
NO
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
mg/L
Run:ICPMS.-C_100216A
5E-05
6E-05
'E-05
4E-05
'E-05
7E-05
2E-05
3E-05
'E-05
0,0001
6E-05
3E-05
'E-05
3E-05
0.0006
3E-05
'E-05
0.0002
Batch:R129669
02116/10 12:53
Sample 10:LFB
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Tin
Uranium
Vanadium
Zinc
Sample10:C10020'5B-002BMS4
Arsenic
Beryllium
Cadmium
Chromium
18 Laboratory Fortified Blank
0.0515 mg/L
0,0525 mg/L
0.0515 mg/L
0,0515 mg/L
0,0529 mg/L
0,0522 mg/L
0.0512 mg/L
0,0519 mg/L
0,00525 mg/L
0,0507 mg/L
0,0521 mg/L
0.0522 mg/L
0,0202 mg/L
0,0516 mg/L
0.0510 mg/L
0.0502 mg/L
0.0512 mg/L
0,0534 mg/L
18 Sample Matrix Spike
0.266 mg/L
0,2"mg/L
0,252 mg/L
0,260 mg/L
Run:ICPMS.-C_100216A
0,0010 103 85 115
0.0010 105 85 115
0,0010 103 85 115
0,0010 103 85 115
0,0010 106 85 115
0.0010 104 85 115
0,0010 102 85 115
0,0010 1O.B5 115
0,0010 1O.85 115
0.0010 100 85 115
0,0010 10.85 115
0,0010 10'B5 115
0,0010 100 B5 115
0.0010 103 85 115
0,0010 102 85 115
0,00030 100 85 115
0.0010 102 85 115
0,0010 107 85 115
Run:ICPMS.-C_100216A
0,0010 105 70 130
0,010 96 70 130
0,010 101 70 130
0,050 104 70 130
02/16/1013:00
02/16/1021:57
._.--_...._-----
Qualifiers:
RL w Analyte reporting lim'lt.
MDC .Minimum detectable concentration
NO -Not detected at the reporting limit.
aifl ENERGYLABORATORIES,INC.·2393SailCreek Highway(8280g •P.D.Box 3258 •Casper,WY82802
TOil Free 888.235.0515 •307.235.0515 •Fax [phone] •casper energylab.com·www.energylab.com
QA/QC Summary Report
Revised Date:04/26/10
Client:Denison Mines USA Corp Report Date:03/15/10
Project:151 QuarterGroundwater Work Order:C10020458
Analyte Count Result Units RL %REC Low limit High Limit RPO RPOLlml1 Qual
Method:E200.8 Batch:R129669
Sample10:C10020458-002BMS4 18 Sample Matrix Spike Run:ICPMS4-C_l00216A 0211611021:57
Cobalt 0.262 mglL 0.010 104 70 130
Copper 0.259 mglL 0.010 103 70 130
Lead 0.261 mglL 0.050 104 70 130
Manganese 0.285 mg/L 0.010 104 70 130
Mercury 0.0261 mglL 0.0010 104 70 130
Molybdenum 0.267 mg/L 0.10 103 70 130
Nickel 0.263 mglL 0.050 103 70 130
Selenium 0.254 mglL 0.0010 101 70 130
Silver 0.0786 mglL 0.010 79 70 130
Thallium 0.259 mglL 0.10 103 70 130
Tin 0.251 mglL 0.10 100 70 130
Uranium 0.270 mg/L 0.00030 104 70 130
Vanadium 0.269 mglL 0.10 106 70 130
Zinc 0.306 mglL 0.010 86 70 130
SamplelD:C10020458-ll02BMSO II Sample Matrix Spike Duplicate Run:ICPMS4-C_'002'6A 0211611022:04
Arsenic 0.268 mglL 0.0010 106 70 130 0.6 20
Beryllium 0.244 mglL 0.010 98 70 130 1.1 20
Cadmium 0.252 m91L 0.010 101 70 130 0 20
Chromium 0.261 mglL 0.050 105 70 130 0.5 20
Cobalt 0.263 mg/L 0.010 105 70 130 0.3 20
Copper 0.261 mglL 0.010 104 70 130 0.7 20
Lead 0.261 mglL 0.050 104 70 130 0 20
Manganese 0.289 mgfL 0.010 105 70 130 1.3 20
Mercury 0.0263 mg/L 0.0010 105 70 130 0.8 20
Molybdenum 0.277 mglL 0.10 107 70 130 3.7 20
Nickel 0.264 mglL 0.050 103 70 130 0.1 20
Selenium 0.255 mg/L 0.0010 102 70 130 0.6 20
Silver 0.0799 mg/L 0.010 80 70 130 1.7 20
Thallium 0.259 mg/L 0.10 103 70 130 0.1 20
Tin 0.257 mg/L 0.10 103 70 130 2.5 20
Uranium 0.271 mglL 0.00030 104 70 130 0.4 20
Vanadium 0.268 mglL 0.10 106 70 130 0.2 20
linc 0.307 mglL 0.010 86 70 130 0.1 20
Qualifiers:
RL w Analyte reporting limit.
MOe ~Minimum detectable concentration
NO .Not detected at the reporting limit.
!¥WlJ§?ENERGYLABORATORIES,INC.•2393 Sa/ICreekHighway (82601)•P.O,Box3258 •Casper,WY82602!I!ffi!if1!jfJJ 70//Free 888.235.0515 •301.235.0515 •Fax 301.234,1639 •casper@ener9y1ab,com'www.energylab.com
Client:
Project:
Denison Mines USA Corp
1st Quarter Groundwater
QA/QC Summary Report Revised Date:04/26110
Report Date:03/15/10
Work Order:C10020458
CountAnalyte
Method:E353,2
SamplelO:MBLK·1
Nitrogen,Nitrate+Nilrite as N
Sample 10:LCS-2
Nitrogen,Nitrate+Nilrite as N
Sample 10:C10020458-o030MS
Nitrogen,Nitrate+Nitrite as N
Sample 10:C10020458-0030MSO
Nitrogen,Nitrate+Nitrite as N
Result Units
Method Blank
NO mglL
Laboratory Control Sample
2.43 mglL
Sample Matrix Spike
4.77 mglL
Sample Matrix Spike Duplicate
4,80 mg/L
.-.._------,~--------~--
RL %REC Low Limit High Limit RPO RPOLlmll Qual
Batch:R130081
Run:TECHNICON_l00226A 02/26/1015:21
0,03
Run:TECHNICON_l00226A 02/26/1015:24
0.10 97 90 110
Run:TECHNICON_l 00226A 02/26/1016:56
0.10 102 90 110
Run:TECHNICON_l00226A 02/26110 16:59
0.10 104 90 110 0.•10
Qualifiers:
RL -Analyte reporting limit.
MDe -Minimum detectable concentration
--_..._---
ND -Not detected at the reporting limit.
ENERGYLABORATORIES,INC..2393 Sail CreekHighway (82601)'P.O.Box3258 •Casper,WY82602/JI!!i~!bllFree 888.2350515 •307.2350515 •Fax [phone] •[e-mail]·www.energylab.com
CHent:Denison Mines USA Corp
Project:1st Quarter Groundwater
QA/QC Summary Report
Revised Date:04/26/10
Report Date:03/15/10
Work Order:C10020458
r~':I~~."..~._--'---------.__.~---------"--------_._-------------_...-._-.__.-
Count Result Units RL %REC Low limit High Limit RPO RPOLlmlt Qual
Method:E900.1 Batch:GA·0301
Sample 10:MB·GA.Q301 ~Method Blank Run:G542M_l00224A 02/27/1013:35
Gross Alpha minus Rn &U ·0.02 pCuL U
Gross Alpha minus Rn &U Precision (±)0.3 pCuL
Gross Alpha minus Rn &U MOC 0.5 pCi/L
Sample 10:LCs·GA·0301 Laboratory Control Sample Run:G542M_l00224A 02/27/1013:35
Gross Alpha minus Rn &U 27.8pCi/L 106 70 130
Sample 10:Cl0020458.Q01CMs Sample Matrix Spike Run:G542M_l00224A 02/27/1013:35
Gross Alpha minus Rn &U 25.8pCuL 96 70 130
Sample 10:Cl0020458·001CMso Sample Matrix Spike Duplicate Run:G542M_l00224A 02127/1013:35
Gross Alpha minus Rn &U 27.4pCi/L 102 70 130 6 24.4
Method:E900.1 Batch:GA·0303
samplelD:MB·GA·0303 ~Method Blank Run:G542M_l00303A 03/06/1014:58
Gross Alpha minus Rn &U ·0.1 pCi/L U
Gross Alpha minus Rn &U Precision (±)0.3 pCi/L
Gross Alpha minus Rn &UMOC 0.6 pCi/L
samplelD:LCs·GA.Q303 Laboratory Control Sample Run:G542M_l00303A 03/06/10 14:58
Gross Alpha minus Rn &U 27.2pCi/L 104 70 130
Sample 10:Cl0020487·008OMs Sample Matrix Spike Run:G542M_l00303A 03/06/1014:58
Gross Alpha minus Rn &U 29.6pCi/L 99 70 130
Sample 10:Cl0020487·008OMso Sample Matrix Spike Duplicate Run:G542M_100303A 03/06/1014:58
Gross Alpha minus Rn &U 31.4pCi/L 106 70 130 5.8 24.7
-_._,,--_...--,,-_.._'"
Qualifiers:
RL •Analyte reporting limit.
MOC .Minimum detectable concentration
--_..---'.
NO .Not detected at the reporting limit.
U-Not detected at minimum detectable concentration
ENERGYLABORATORIES,INC.•2393SailCreek Highway (82601)•P.O.Box 3258 •Casper,WY82602fMlii1[(_TO_II_A_r8_e_B._'88_._23._'s:_.O_'5_15_'_$,_0_7._23._'s:_.O_'5_15_'_A_ax_30_7._:2_'3_~._16_'3._'9_'_C8_S_'{l8_r_@_8_"e_"_Uyl_B_v_.c_om_'_www'_._e_"e_r9_'Y'_B_b_.C_om _
Client:Denison Mines USA Corp
Project:1st QuarterGroundwater
QA/QC Summary Report
Revised Date:04/26110
Report Date:03115/10
Work Order:C10020458
SW8260B
19·Feb·10_LCS_3
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
80 120
70 130
80 130
80 120
Run:GCMS2_100219A 02/19/1012:37
Run:GCMS2_100219A
Batch:R129882
02/19/1010:47
RPD RPDLimit Qual I
120
130
120
120
80
70
60
80
20 96
1.0 90
1.0 106
1.0 104
1.0 76
1.0 96
20 87
1.0 92
1.0 78
1.0 102
1.0 97
1.0 98
1.0 110
1.0 112
1.0 107
1.0 99
20
1.0
1.0
1.0
1.0
1.0
20
1.0
1.0
1.0
1.0
1.0
1.0 108
1.0 108
1.0 110
1.0 97
.1§.Laboratory Control Sample
96 ug/L
g.O ug/L
11 ug/L
10 ug/L
7.6 ug/L
19 ug/L
87 ug/L
9.2 ug/L
7.8 ug/L
10 ug/L
9.7 ug/L
29 ug/L
16 Method Blank
NO ug/L
NO ug/L
NO ug/L
NO ug/L
NO ug/L
NO ug/L
NO ug/L
ND ug/L
NO ug/L
NO ug/L
NO ugiL
NO ug/L
Method:
Sample 10:
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
m+p~Xylenes
Methyl ethyl ketone
Methylene chloride
Naphthalene
a-Xylene
Toluene
Xylenes,Total
Surr:1,2~Dlchtorobenzene·d4
Surr:Oibromofluoromethane
Surf;p-Bromofluorobenzene
Surr:Toluene-d8
Sample10:19·Feb_MBLK_6
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
m+p-Xylenes
Methyl ethyl ketone
Methylene chloride
Naphthalene
a-Xylene
Toluene
Xylenes,Total
Surr:1,2·0ich!orobenzene-d4
Surr:Oibromofluoromethane
Surr:p~Bromofluorobenzene
Surf:Toluene-dB
Sample 10:C10020468·001EMS
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
m+p-Xylenes
Methyl ethyl kelone
Methylene chloride
1§.Sample Matrix Spike
1600 ug/L
200 ug/L
190 Ug/L
190 ug/L
160 ug/L
440 ug/L
1600 ugiL
190 ug/L
400
20
20
20
20
20
400
20
Run:GCMS2_100219A
81 70 130
98 70 130
96 70 130
97 70 130
78 70 130
109 70 130
82 70 130
96 70 130
02/1911018:30
Qualifiers:
RL -Analyte reporting limit.
MOC .Minimum detectable concentration
NO ~Not detected at the reporting limit.
~I WJ16 ENERGYLABORATORIES,INC••2393Sail Creek Highway (82601)•P.O.Box 3258 •Casper.WY82602'IIi.TOilFree 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·www.energylab.com£1 _
Client:
Project:
QA/QC Summary Report
Denison Mines USA Corp
1st Quarter Groundwater
Revised Date:04/26110
Report Date:03/15/10
Work Order:C10020458
--_._--~---..__._~_._.._~._.--~--------~~",-."---,
Analyte Count Result Units RL %REC Low limit High Limit RPO RPOLlmlt Qual
Method:sW8260B Batch:R129882
Sample 10:C10020458·001EMs 16 Sample Matrix Spike Run:GCMs2_100219A 02/19/1018:30
Naphthalene 180 ug/L 20 89 70 130
a-Xylene 220 ug/L 20 109 70 130
Toluene 210 ug/L 20 104 70 130
Xylenes,Total 650 ug/L 20 109 70 130
Surr:1,2·Dichlorobenzene·d4 20 106 80 120
Surr:Dibromofluoromethane 20 100 70 130
Surr:p~Bromofluorobenzene 20 103 80 120
Surr;Toluene-dB 20 100 80 120
samplelD:C10020459.()01EMso 12 Sample Matrix Spike Duplicate Run:GCMs2_100219A 02/19/1019:05
Acetone 1800 ug/L 400 88 70 130 8.5 20
Benzene 190 ug/L 20 97 70 130 1.2 20
Carbon tetrachloride 190 ug/L 20 97 70 130 2.5 20
Chloroform 200 ug/L 20 98 70 130 0.8 20
Chloromethane 160 ug/L 20 79 70 130 1 20
m+p~Xylenes 430 ug/L 20 108 70 130 0.7 20
Methyl ethyl ketone 1800 ug/L 400 89 70 130 8.4 20
Methylene chloride 200 ug/L 20 100 70 130 3.7 20
Naphthalene 190 ug/L 20 95 70 130 7 20
a-Xylene 220 ug/L 20 109 70 130 0.4 20
Toluene 200 ug/L 20 100 70 130 3.1 20
Xylenes,Total 650 ug/L 20 108 70 130 0.6 20
Surr:1,2~Oichlorobenzene·d4 20 106 80 120 0 10
Surr:Oibromofluoromethane 20 99 70 130 0 10
Surr:p~Bromofluorobenzene 20 104 80 120 0 10
Surr:Toluene--d8 20 99 80 120 0 10
----"----_....".
Qualifiers:
RL w Analyte reporting limit.
MOe ~Minimum detectable concentration
NO •Not detected at the reporting limit.
Energy Laboratories Inc
Workorder Receipt Checklist
Denison Mines USA Corp
Login completed by:Edith McPike
Reviewed by:BL2000lkschroeder
Reviewed Date:2/19/2010
IIIII~IIIII~I~~I!~1I1111~IIIIIIIIIIIIIIIII
C10020458
Date Received:2/12/2010
Received by:em
Carrier name:FedEx
Shipping container/coolerin good condition?
Custody seals intact on shipping container/cooler?
Custody seals intact on sample bottles?
Chain ofcustody present?
Chain ofcustody signed when relinquished and received?
Chain ofcustodyagrees with sample labels?
Samplesin propercontainerlbottle?
Sample containers intact?
Sufficient sample volume for indicated test?
All samples received within holding time?
Containerffamp Blanktemperature:
Water~VOA vials have zero headspace?
Water~pH acceptable upon receipt?
Contact and Corrective Action Comments:
Yes [{)
Yes [{)
Yes 0
Yes [{)
Yes [{)
Yes [{)
Yes [{)
Yes [{)
Yes [{)
Yes [{)
4'C
Yes [{)
Yes [{)
NoO
No 0
No 0
No 0
No 0
No 0
No 0
No 0
NoO
No 0
No 0
No 0
Not Present 0
Not Present 0
Not Present 0
No VOA vials submitted 0
Not Applicable 0
-LolLPChainofCustodyandAnalyticalRequestRecordI!JUlI§
'i~@*UtfmUd".--.......-...1,,;,rl'll.lI"I It-.UVt!o.ol1l;J <I~IU"''''II III1UIIUClUUII G~D"~:::OIUIII;;::..
C=-T\~e:Project Na?:1l~ws.Permit.EIC.Sample Origin EPNState Compliance:
\I""I;"',J fVJ,'",<""J;,1'"(4~Ie.;''''//lIHJ"I -/:;State:I~Yes 0 No 0
Report Mail Address:~'601 7"4:-ame
:~/Vk poo;;;zzeI
Email:Sampler:(Please Print)f,'0'I -r;::~!-LId""fiim),,;"iA7"S<'ti,11
InvoiceAddress:/Invoice Contact &Phone:Purchase Order:QuotelBottle Order:!
~'.1A.-;;;-C
Special Report/Formats:;;:~'\7@!]@ OOjg®QD~..Contact Ell prior to "~j'r IiClRUSHsamplesubmittal
v>o <I)~for charges and CooI.r lD(sj:
~r:o;g 4>0 ~R scheduling -See
(:kfY/1-.->0 >-(ij:W t:.Instruction PageDowDEDD/EDT(Electronic Data)1l!enrg m;;:i~J:"0
DpOTWIWWTP Fonnat:83:~~~()c Comments:RO<4lq_'0Co«~~dil~"U4:eDState:o lEVEL IV ~;;2 §o"i~I-ro
D Other:DNELAC 0.(l;)f+=l 0 !;;:E Onb:(yN~(Q •":::3 cu·=:(j)3:l-Szc.<CIg>o .~W "E co;;,::",5o"6(iJ~>1 W ro
if)"0en.;j c OnCoolo<"ro0;H Intact Y NSAMPLEIDENTIFICATIONCollectionCollectionMATRIXSignatureN(Name,Location,Interval,etc.)Date Time .~Match
'1l11it J-I ~·(o«xo 1M C,-~X b
J'lloI...J -I3MI'! _7IJ 2·f/'/lIJ/I?il1KCt1 -w ·x
•flIltAJ·z?.M20(O JlIN,~-IJ V 11~~
~~
7M/lJ_~/)9.-r7/110 iKU [l;.u-J )..~
'J/lAoJ -'2./2-4'Jf!11)!/'f5'-l 't?-I.)i-~0
9 -r-.t'/pAl.....I(~~
lOMv\j EO J-q .?-011l l'i:SLl b-IAJ ';('///(1..1 /ldf
Custody R~f5:L :3~tit~:/~~~I/.F Receivedby{print}:Dat6ITme:Signature:v
.·iW//Record Relinquishedby (print):OatefTilOO:J""~"rn'l -Receivedby{print}:Datefrme:Signature:
MUST be ~:~~Signed Samole DiSDClSaI:Return to Client Lab DisDosal:v"~~/ll-n III;3/.oo""orn.
In certain circumstances,samples submittedto Energy Laboratories,Inc.may besubcontracted to other certified laboratories in orderto complete the analysis requested.
This serves as notice ofthis possibility_All sub-contract datawill be clearly notated on your analytical report.
Visit our web siteat www.energylab.com for additional information.downloadable fee schedule,forms,and links.
ENERGYLABORATORIES,INC.•2393SailCreekHighway(82601)•Po.Box 3258 .Casper,WY82602
7011Free 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·www.energylab.com
ANALYTICAL SUMMARY REPORT
April 26,2010
Denison Mines USA Corp
6425 S Hwy 191
Blandin9,UT 84511
Workorder No.:C10020229 Quote 10:C1640 -pac Wells I Monthly Groundwater Sampling
Project Name:1sf Quarter Groundwater
._--_.._-_..__._----------
Energy Laboratories,Inc.received the following 4 sampies for Denison Mines USA Corp on 2/5/2010 for analysis.._._-_..--._~._.-
Sample 10 Client Sample 10 Collect Date Receive Date Matrix Test
Aqueous
02/02/10 10:55 02/05/10 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--=-=-~~---:-:~-:cc---,--------::------..-------
02/02/1013:4302/05/10 Aqueous Same As Above
C10020229-001 MW-14
C10020229-002 MW-26
-c--=c:-:-:-:c:-c---c-::-:-:-~----..~-..-...-...---.....---.
C10020229-003 MW-25 02/03/1012:5302/05/10
C10020229-004 Trip Blank 02/03/1000:0002/05/10 Aqueous SW8260B VOCs,Standard List
Any exceptions or problems with the analyses are noted in the Laboratory Analytical Report,the QNQC Summary
Report,or the Case Narrative.
The results as reported relate only to the item(s)submitted for testing.
If you have any questions regarding these test results,please call.
Report Approved By:a'10~MiO D.l'uJ.J\P<::....-......_
Stepllanie D.WaldropI
Reporting Supervisor
ENERGVLABORATORIES,INC••2393 SailCreekHighway(8260I)•P.0.Box 3258 •Casper,WV82602
lOllFree 888.235.0515 •301.235.0515 •Fax [phone] •[e-mail]·www.energylab.com
CLIENT:Denison Mines USA Corp
Project:1st Quarter Groundwater
Sample Delivery Group:C10020229
Revised Date:04/26/10
Report Date:02/26110
CASE NARRATIVE
REVISEDISUPPLEMENTAL REPORT
The attached analytical report has been revised from a previously submitted report due to the request by JoAnn Tischler for
the following corrections:Carbonate and Bicarbonate RL changed to 1 mg/L on all samples;Iron reported by Method 200.7
on all samples;Chloroform result footnoted on sample -002 to show dilution.
ORIGINAL SAMPLE SUBMITTAL(S)
All original sample submittals have been returned with the data package.
SAMPLE TEMPERATURE COMPLIANCE:4'C (±2'C)
Temperature of samples received may not be considered properly preserved by accepted standards.Samples that are hand
delivered immediately after collection shaH 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 a 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 (2 days).The time delay in returning the canister to the laboratory for processing
should be 85 short as possible to avoid excessive decay.Maximum recommended delay between end of exposure to
beginning of counting should not exceed 8 days,
SOIUSOLID SAMPLES
All samples reported on an as received basis unless otherwise indicated,
ATRAZINE,SIMAZINE AND PCB ANALYSIS
Data for PCBs,Atrazine and Simazine are reported from EPA 525.2.PCB data reported by ELI reflects the results for seven
individual Aroclors,VVhen 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 utiiize 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
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ISO 17025 DISCLAIMER:
The results ofthis Analytical Report relate only to the items submitted for analysis.
ENERGY LABORATORIES,INC.-CASPER,WY 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 ELI's 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 'WV'NI.energylab.com.
ENERG YLABORATORIES,INC.•2393 Sail Creek Highway (82601)•PO.Box3258 •Casper,WY82602
TollFree 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·www.energylab.com
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
15t Quarter Groundwater
C10020229-004
Trip Blank
Revised Date:04/26/10
Report Date:02/26/10
Collection Date:02/03/10
DateReceived:02/05/10
Matrix:Aqueous
MCLJ
Analyses Result Units Qualifiers RL aCL Method Analysis Date I By
VOLATILE ORGANIC COMPOUNDS
Acetone NO ug/L 20 SWB260B 02110/101B:27/wen
Benzene NO ug/L 1.0 SWB260B 02/10/10 18:27/wen
Carbon tetrachloride NO ug/L 1.0 SW8260B 02110/10 18:27 Iwen
Chloroform NO ug/L 1.0 SW8260B 02/10/1018:27/wen
Chloromethane ND ug/L 1.0 SW8260B 02/10110 18:27/wen
Methyl ethyl ketone NO ug/L 20 SW8260B 02/10/101B:27/wen
Methylene chloride NO ug/L 1.0 SWB260B 02/10/1018:27 I wen
Naphthalene NO ug/L 1.0 SWB260B 02/10/10 18:27/wen
Toluene NO ug/L 1.0 SWB260B 02110/10 18:27/wen
Xylenes,Total NO ug/L 1.0 SWB260B 02/10110 18:27/wen
Surr:1,2~Oichlorobenzene-d4 113 ()/oREC 80-120 SWB260B 02/10/10 18:27 I wen
Surr:Dibromofluoromethane 122 %REC 70-130 SWB260B 02/10/10 18:27/wen
Surr:p·Bromofluorobenzene 110 %REC 80-120 SW8260B 02110/10 18:27/wen
Sure Toluene-d8 100 %REC 80-120 SW8260B 02/10/10 18:27 I wen
--_._--._-_••_------
Report.
Definitions:
RL w Analyte reporting limit.
QCL·Quality control limit.
Mel·Maximum contaminant level.
ND .Not detected at the reporting limit.
ENERG YLABORATORIES,INC.•2393Sail CreekHighway (8280 I)•P.0.Box3258 •Casper,WY82802
TollFree 888.235.0515 •301.235.0515 •Fax [phone] •[e-mail]·www.energylab.com
Client:
Project:
Denison Mines USA Corp
1st Quarter Groundwater
QA/QC Summary Report
Revised Date:04/26/10
Report Date:02/26/10
Work Order:C10020229
Analyte Count Result Units RL %REC low Limit HIgh Limit RPD RPDlimlt Qual
Method:A2320 B
Sample 10:MBLK
Alkalinity,Total as CaC03
Carbonate as C03
Bicarbonate as HC03
~Method Blank
4
NO
5
mg/L
mg/L
mg/l
Run:MANTECH_100209A
Balch:R129476
02/09/10 11:59
Sample 10:LCS1
Alkalinity,Total as CaC03
Sample 10:LeS
Alkalinity,Total as CaC03
SamplelD:C10020229.Q02AMS
Alkalinity,Total as CaC03
Sample 10:C10020229·002AMSO
Alkalinity,Total as CaC03
Laboratory Control Sample
207 mg/L
Laboratory Control Sample
54.7 mg/L
Sample Matrix Spike
469 mg/L
Sample Matrix Spike Duplicate
471 mg/L
Run:MANTECH_100209A 02/09/1012:14
5.0 102 90 110
Run:MANTECH_100209A 02/09/10 12:24
5.0 102 90 110
Run:MANTECH_100209A 02/09/1018:45
5.0 102 80 120
Run:MANTECH_'00209A 02/0911018:53
5.0 104 80 120 0.4 20
Qualifiers:
RL ~Analyte reporting limit.
MDC·Minimum detectable concentration
ND·Not detected at the reporting limit.
ENERGYLABORATORIES,INC••2393 Sal/Creek Highway (8260/)'Ao.Box 3258 .Casper,WY 82602
INIFree 888.235.05/5 •301.235.05/5 •Fax [phone] •[e-mail]·www.energylab.com
Client:Denison Mines USA Corp
Project:18t Quarter Groundwater
QA/QC Summary Report Revised Date:04/26/10
Report Date:02/26/10
Work Order:C10020229
RPO RPOlimit QualRL%REC Low Limit High LimItResultUnitsCount
,--------_._-----------------_...•-...•..•
!Analyte
Method:A254ll C
Sample 10:MBLK1.100208
Solids,Total Dissolved TDS @ 180 C
Method Blank
NO mg/L
Run:BAL·1.100208B
10
Balch:100208.1.SLDS-TDS·W
02/08/1011:41
Sample 10:LCS1.100208
Solids,Total Dissolved TDS @ 180 C
Sample 10:C10020233·001AMS
Solids,Total Dissolved TDS @ 180 C
Sample 10:C10020233·001AMSD
Solids,Total Dissolved TDS @ 180 C
Laboratory Control Sample
1000 mg/L
Sample Matrix Spike
2330 mg/L
Sample Matrix Spike Duplicate
2340 mg/L
Run:BAL·U00208B 02/08/10 11:41
10 100 gO 110
Run:BAL·1.1002088 02/08/1012:03
10 103 90 110
Run BAL~1 .100208B 02/08/1012:03
10 104 90 110 0.7 10
Qualifiers:
RL •Analyte reporting limit.
MOe -Minimum detectable concentration
NO ~Not detected at the reporting limit.
ENERGYLABORATORIES,INC.•2393 Sail Creek Highway(82801)•P.D.Box3258 •Casper,WY82802
Toll Free 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·WWII<energylab.com
QA/QC Summary Report
RL %REC Low Limit High Limit
Client:
Project:
IAnalyte"
Denison Mines USA Corp
1st Quarter Groundwater
Count Result Units
Revised Date:04126110
Report Date:02/26/10
Work Order:C10020229
...__...__.._-----------,
RPO RPOLlmit Qual I
Method:A4500·CI B
Sample 10:MBLK9·100211
Chloride
Method Blank
ND mg/L
Run:TITRATION_100211A
0.4
Batch:100211·CL·TIR·W
02/11/1007:57
Sample 10:C10020152·00BAMS
Chloride
Sample 10:C10020152·00BAMS
Chloride
Sample 10:C10020152w010AMS
Chloride
Sample 10:C10020152·010AMS
Chloride
Sample 10:LCS35·100211
Chloride
Sample Matrix Spike
40.6 mg/L
Sample Matrix Spike Duplicate
39.9 mg/L
Sample Matrix Spike
50.5 mg/L
Sample Matrix Spike Duplicate
50.5 mg/L
Laboratory Control Sample
3500 mgfL
Run:TITRATION_100211A
1.0 102 gO 110
Run:TITRATiON-100211A
1.0 100 gO 110
Run:TITRATION-100211A
1.0 102 90 110
Run:TITRATION-100211A
1.0 102 90 110
Run:TITRATION_100211A
1.0 99 90 110
1.B
o
02/11/1009:0B
02/11/1009:09
10
0211111009:56
02111/10 09:58
10
02/11/1010:00
Qualifiers:
RL -Analyte reporting limit.
MOe -Minimum detectable concentration
NO -Not detected at the reporting limit.
ENERGYLABORATORIES,INC••2393 SailCreek Highway (8260/)•P.0.Box 3256 .Casper,WY82602
TollFree 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·www.energylab.com
Client:
Project:
Denison Mines USA Corp
1st Quarter Groundwater
QA/QC Summary Report
Revised Date:04126110
Report Date:02126110
Work Order:Cl0020229
-------------,
Analyle Count Result Units RL %REC Low limit High limit RPO RPOLImit Qual
Method:A4500·F C Balch:R129401
Sample 10:MBLK Method Blank Run:MANTECH_l00208A 02/08/1010:10
fluoride NO mg/L 0.05
Sample 10:LeS Laboratory Control Sample Run:MANTECH_l00208A 02108/1010:13
Fluoride 0.980 mglL 0.10 98 90 110
Sample 10:C10020229·001AMS Sample Matrix Spike Run:MANTECH-100208A 02/08/1014:25
Fluoride 1.10 mg/L 0.10 95 80 120
SamplelD:C10020229·001AMSO Sample Matrix Spike Duplicate Run:MANTECH_100208A 02/08/1014:28
Fluoride 1.08 mg/L 0.10 93 80 120 1.8 10
Qualifiers:
RL ~Analyte reporting limit.
MDC .Minimum detectable concentration
ND .Not detected at the reporting limit.
ENERGVLABORATORIES,INC••2393Sail Creek Highway(82601)•P.0.Box 3258 •Casper,WY82602
lOllFree 888.235.0515 •307.285.0515 •Fax [phone] •[e-mail]·wwwenergylab.com
Client:
Project:
Denison Mines USA Corp
1st Quarter Groundwater
QA/QC Summary Report
Revised Date:04/26/10
Report Date:02/26/10
Work Order:C10020229
Analyle Count Result Units RL %REC Low Limit High Limit RPD RPOLimit Qual
Method:A4500-H B
Sample 10:ICV1_100205_2
pH
Initial Calibration Verification Standard
6.92 S.u.0.010 101 98
Analytical Run:OR10N555A~2_1002058
02105/10 15:22
102
Method:A4500-H B
Sample 10:C10020235-001AOUP
pH
Sample Duplicate
7.53 S.U.0.010
Batch:100205_2_PH-W_555A-2
Run:ORION555A-2_1 00205B 02105/10 16:42
0.8 10
Qualifiers:
RL ~Analyte reporting limit.
MDC -Minimum detectable concentration
NO -Not detected at the reporting limit.
ENERG YLASORArORlEs,INC.•2393 Sail CreekHighway(82601)•P.O.Box 3258 •Casper,WY82602
milFree 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·wwwenergylab.com
Client:Denison Mines USA Corp
Project:1st Quarter Groundwater
QA/QC Summary Report
Revised Date:04/26/10
Report Date:02126/10
Work Order:C10020229
IAnalyte
•...~------.----_.]Count Result Units RL %REC Low Limit High limit RPD RPDLimit Qual
Method:A4500-NH3 G Batch:R129897
Sample ID:MBLK-1 Method Blank Run:TECHNICON_tOO223A 02/23/1009:35
Nitrogen,Ammonia as N ND mg/L 0.02
Sample ID:LCS-2 Laboratory Control Sample Run:TECHNICON_l00223A 02/23/1009:37
Nitrogen,Ammonia as N 21.7 mg/L 0.20 108 80 120
Sample ID:C10020229-003DMS Sample Matrix Spike Run:TECHNICON_l00223A 02123110 09:49
Nitrogen,Ammonia as N 2.48 mg/L 0.050 115 80 120
SamplelD:C10020229-003DMSD Sample Matrix Spike Duplicate Run:TECHNICON_l00223A 02/23/1009:51
Nitrogen,Ammonia as N 2.38 mglL 0.050 109 80 120 4.1 20
Qualifiers:
RL .Analyte reporting limit.
MDe ~Minimum detectable concentration
ND·Not detected at the reporting limit.
ENERGYLABORATORIES,INC.•2393Sail Creek Highway (82801j •AD.Box3258 •Casper,WY82802
TOil Free 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·wwwenergylab.com
Client:
Project:
Denison Mines USA Corp
1st Quarter Groundwater
QA/QC Summary Report Revised Date:04/26/10
Report Date:02/26/10
Work Order:C10020229
Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method:A4500·S04 E Batch:100223_1_S04-TURB·W
Sample iO:LCS·1_100223 Laboratory Control Sample Run:TURB·2_1 00223A 02/23/10 13:28
Sulfate 4780 mg/L 59 100 90 110
Sample 10:MBLK·1_100223 Method Blank Run:TURB~2_1 00223A 02/23110 13:30
Sulfate NO mg/L 0.6
Sample 10:C10020460·001AMS Sample Matrix Spike Run:TURB-2_100223A 02123110 14:25
Sulfate 214 mg/L 2.9 102 90 110
Sample 10:C10020460-001AMSD Sample Matrix Spike Duplicate Run:TURB-2_100223A 0212311014:28
Sulfate 215 mg/L 2.9 103 90 110 0.5 10
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
NO -Not detected at the reporting limit.
ENERGYLABORATORIES,INC.•2393 SailCreek Highway(82801)'P.O.Box 3258 •Casper,WY82602
TollFree 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·www.energylab.com
QA/QC Summary Report
Revised Date:04/2611 0
Client:Denison Mines USA Corp Report Date:02/26/10
Project:1st Quarter Groundwater Work Order:C10020229
_._-_.._---~._--
iAnalyte count Result Units RL %REC Low limit High Limit RPO RPDUmit Qual
Method:E200.7 Batch:R129892
Sample 10:MB-100222A §Method Blank Run:ICP2-C_l00222A 02/22/1013:32
Calcium NO mg/L 0.2
Iron 0.002 mg/L 0.002
Magnesium NO mg/L 0.05
Potassium ND mg/L 0.02
Sodium NO mg/L 0.3
Sample 10:LFB-l00222A §Laboratory Fortified Blank Run:ICP2-C_l00222A 0212211013:36
Calcium 49.3 mg/L 0.50 99 85 115
Iron 0.975 mg/L 0.030 97 85 115
Magnesium 49.9 mg/L 0.50 100 85 115
Potassium 43.1 mg/L 0.50 86 85 115
Sodium 47.7 mg/L 0.50 95 85 115
Sample10:C10020049-005BMS2 §Sample Matrix Spik.e Run:ICP2-C-100222A 02/22/10 19:39
Calcium 281 mg/L 1.0 96 70 130
Iron 2.43 mg/L 0.030 100 70 130
Magnesium 135 mg/L 1.0 95 70 130
Potassium 102 mg/L 1.0 88 70 130
Sodium 140 mg/L 1.0 98 70 130
Sample10:Cl0020049-005BMSD §Sample Matrix Spike Duplicate Run:ICP2-C-100222A 0212211019:43
Calcium 283 mg/L 1.0 98 70 130 0.7 20
Iron 2.43 mg/L 0.030 100 70 130 0.3 20
Magnesium 135 mg/L 1.0 95 70 130 0 20
Potassium 107 mg/L 1.0 93 70 130 4.7 20
Sodium 136 mg/L 1.0 94 70 130 3.1 20
Qualifiers:
RL w Analyte reporting limit.
MOe -Minimum detectable concentration
ND -Not detected at the reporting limit.
ENERGYLASORATORIES,INC.•2393SaltCreekHighway(8260I)•P.0.Box 3258 •Casper,WY82602
Toll Free 888.235.0515 •301.235.0515 •Fax [phone] •casper@energylab,com·www.energylab.com
Client:
Project:
Denison Mines USA Corp
1sl Quarter Groundwater
QA/QC Summary Report
Revised Date:04/26/10
Report Date:02/26/10
Work Order:C10020229
Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLlmit Qual
Method:E200,8
Sample 10:LRB
Mercury
Silver
6 Method Blank
NO
8E-05
mg/L
mg/L
Run:ICPMS2-C_100209A
4E-05
2E-05
Batch:R129478
02/09/10 13:18
Sample 10:LFB
Mercury
Silver
Sample10:C10020229-D03BMS4
Mercury
Silver
sample 10:C10020229·003BMSD
Mercury
Silver
Z Laboratory Fortified Blank
0.00505 mg/L
0.0200 mg/L
£Sample Matrix Spike
0.0253 mg/L
0.0726 mg/L
f Sample Matrix Spike Duplicate
0,0254 mg/L
0,0717 mg/L
0,0010
0.0010
0.0010
0.010
0.0010
0.010
Run:ICPMS2-C_100209A
101 85 115
100 85 115
Run:ICPMS2-C_100209A
101 70 130
73 70 130
Run:ICPMS2-C_100209A
101 70 130 0,2
72 70 130 1.3
02/09/1013:24
02/09/1016:27
02/09/1016:33
20
20
Qualifiers:
RL -Analyte reporting limit.
MOe ~Minimum detectable concentration
NO .Not detected at the reporting limit.
ENERGYLASORATORIES,INC••2393SailCreek Highway(82607)•P.0.Box 3258 •Casper,WY82602
7011Free 888.235.0575 •301.235.0575 •Fax [phone] •[e-mail]·www:energylab.com
Count
._...-._--------------
QA/QC Summary Report
Revised Date:04/26/10
Report Date:02/26/10
Work Order:C10020229
RPD RPDLimit QualRL%REC Low Limit High LimitUnitsResult
Client:Denison Mines USA Corp
Project:1st Quarter Groundwater
,---------_._--_...
:Analyte
Method:E200.8
Sample 10:LRB
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Lead
Manganese
Molybdenum
Nickel
Selenium
Thallium
Tin
Uranium
Vanadium
Zinc
12 Method Blank
NO
NO
NO
NO
NO
NO
NO
NO
0.0003
NO
7E-05
NO
NO
5E-05
NO
0.0009
mglL
mg/L
mglL
mglL
mglL
mg/L
mglL
mg/L
mglL
mglL
mglL
mg/L
mg/L
mg/L
mg/L
mg/L
5E-05
6E-05
4E-05
4E-05
4E-05
7E-05
2E-05
3E-05
0.0001
6E-05
3E-05
3E-05
0.0006
3E-05
4E-05
0.0002
Run:ICPMS4-C_100208A
Batch:R129417
0210811013:05
Sample 10:LFB
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Lead
Manganese
Molybdenum
Nickel
Selenium
Thallium
Tin
Uranium
Vanadium
Zinc
Sample 10:C10020229~001BMS4
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Lead
Manganese
16 Laboratory Fortified Blank
0.0554 mglL
0.0569 mglL
0.0554 mglL
0.0555 mglL
0.0565 mglL
0.0563 mglL
0.0549 mglL
0.0572 mglL
0.0540 mglL
0.0561 mg/L
0.0563 mglL
0.0551 mglL
0.0536 mglL
0.0540 mg/L
0.0552 mglL
0.0577 mglL
12.Sample Matrix Spike
0.0433 mg/L
0.0389 mglL
0.0399 mglL
0.0419 mglL
0.0452 mglL
0.0410 mglL
0.0426 mglL
2.11 mglL
Run:ICPMS4-C_'00208A
0.0010 111 85 115
0.010 114 85 115
0.0010 111 85 115
0.0010 111 85 115
0.0010 113 85 115
0.0010 113 85 115
0.0010 110 85 115
0.0010 114 85 115
0.0010 107 85 115
0.0010 112 85 115
0.0010 112 85 115
0.0010 110 85 115
0.0010 107 85 115
0.00030 108 85 115
0.0010 110 85 115
0.0010 114 85 115
Run:ICPMS4-C_'00208A
0.0010 86 70 130
0.010 78 70 130
0.010 78 70 130
0.0010 84 70 130
0.010 82 70 130
0.010 82 70 130
0.0010 85 70 130
0.010 70 130
0210811013:12
0210911004:24
A
Qualifiers:
RL .Analyte reporting limit.
ND·Not detected at the reporting limit.
A •The analyte level was greaterthan four times the spike level.In
accordance with the method %recovery is not calculated.
MDe .Minimum detectable concentration
ENERGVLABORATORIES,INC.•2393SaIICreekHighway(8260Ij·p.o.Box3258·Casper,WV82602
Toll Free 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·wwwenergylab.com
QA/QC Summary Report
Revised Date:04/26/10
Client:Denison Mines USA Corp Report Date:02/26/10
Project:1st Quarter Groundwater Work Order:C10020229
[_.__....__.
IAnalyteCountResultUnitsRL%REC Low Limit High Limit RPD RPDLimit Qual
Method:E200.8 Batch:R129417
SamplelD:C10020229·001BMS4 12 Sample Matrix Spike Run:ICPMS4·C_100208A 02/09/10 04:24
Molybdenum 0.0408 mgfL 0.0010 76 70 130
Nickel 0.0457 mg/L 0.0010 80 70 130
Selenium 0.0417 mg/L 0.0010 83 70 130
Thallium 0.0386 mg/L 0.0010 76 70 130
Tin 0.0313 mg/L 0.0010 63 70 130 S
Uranium 0.108 mg/L 0.00030 91 70 130
Vanadium 0.0416 mg/L 0.0010 83 70 130
Zinc 0.0486 mg/L 0.010 76 70 130
Sample ID:C10020229·001BMSD .1.§.Sample Matrix Spike Duplicate Run:ICPMS4·C_100208A 02/09/1004:31
Arsenic 0.0427 mg/L 0.0010 85 70 130 1.3 20
Beryllium 0.0387 mgfL 0.010 77 70 130 0.4 20
Cadmium 0.0396 mg/L 0.010 77 70 130 0.7 20
Chromium 0.0415 mg/L 0.0010 83 70 130 0.9 20
Cobalt 0.0448 mg/L 0.010 81 70 130 1 20
Copper 0.0402 mg/L 0.010 80 70 130 1.9 20
Lead 0.0419 mg/L 0.0010 84 70 130 1.7 20
Manganese 2.08 mg/L 0.010 70 130 1.2 20 A
Molybdenum 0.0433 mg/L 0.0010 81 70 130 5.8 20
Nickel 0.0456 mg/L 0.0010 80 70 130 0.2 20
Selenium 0.0421 mg/L 0.0010 84 70 130 0.8 20
Thallium 0.0385 mg/L 0.0010 76 70 130 0.4 20
Tin 0.0337 mg/L 0.0010 67 70 130 7.3 20 S
Uranium 0.108 mg/L 0.00030 90 70 130 0.4 20
Vanadium 0.0422 mg/L 0.0010 84 70 130 1.5 20
Zinc 0.0484 mg/L 0.010 75 70 130 0.3 20
Qualifiers:
RL ~Analyte reporting limit.
NO ~Not detected at the reporting limit
S -Spike recovery outside of advisory limits.
A-The analyte level was greater than four times the spike level.In
accordance with the method %recovery is not calcUlated.
MOe·Minimum detectable concentration
ENERGVLASORA rORIES,INC.•2393Sail Creek Highway (82601)•P.0.Box3258 •Casper,WV82602
rollFree 888.235.0515 •307.2350515 •Fax [phone] •[e-mail]·wwwenergylab.com
Client:Denison Mines USA Corp
Project:1st Quarter Groundwater
QA/QC Summary Report Revised Date:04/26110
Report Date:02126110
Work Order:C10020229
i -----~..._--
!Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method:E353.2 Batch:R129681
Sample 10:M8LK-1 Method Blank Run:TECHNICON_1002168 02116/1015:06
Nitrogen,Nitrate+Nilrite as N NO mg/L 0.03
Sample 10:LCS-2 Laboratory Control Sample Run:TECHNICON_l 002168 02/16/10 15:08
Nitrogen,Nitrate+Nitrite as N 2.64 mg/L 0.10 106 90 110
Sample 10:C10020312-D018MS Sample Matrix Spike Run:TECHNICON_l 002168 02/1611015:23
Nitrogen,Nilrate+Nitrite as N 2.72 mg/L 0.10 106 90 110
Sample 10:C10020312-D018MSD Sample Matrix Spike Duplicate Run:TECHNICON_l 002168 02/16/1015:26
Nitrogen,Nitrate+Nitrite as N 2.74 mg/L 0.10 107 90 110 0.7 10
Qualifiers:
RL -Analyte reporting limit.
MOe -Minimum detectable concentration
NO -Not detected at the reporting limit.
ENERGYLABORATORIES,INC.,2393SailCreek Highway(82601)'P.O.Box3258 'Casper,WY82602
TollFree 888.235.0515 '307235.0515:'Fax [phone] •[e-mail]'wwwenergylab.com
Client:
Project:
Denison Mines USA Corp
1st Quarter Groundwater
QA/o.c Summary Report
Revised Date:04/26/10
Report Date:02/26/10
Work Order:C10020229
r---'----------_..._---....-_.._.__._--_.------
Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method:E900.1 Batch:GA·0298
Sample ID:MB·GA-0298 ;!Method Blank Run:G542M_l00212A 02117/1013:45
Gross Alpha minus Rn &U 0.1 pCilL U
Gross Alpha minus Rn &U Precision (±)0.2 pCill
Gross Alpha minus Rn &U MOe 0.4 pCilL
Sample 10:LCS·GA·0298 Laboratory Control Sample Run:G542M_l00212A 02117/1013:45
Gross Alpha minus Rn &U 25.2pCi/L 95 70 130
SamplelD:C10020229·001CMS Sample Matrix Spike Run:G542M-100212A 02117/1013:45
Gross Alpha minus Rn &U 27.1 pCill 101 70 130
Sample 10:C10020229·001CMSD Sample Matrix Spike Duplicate Run:G542M_100212A 02/1711013:45
Gross Alpha minus Rn &U 25.0pCill 93 70 130 7.9 22.4
Qualifiers:
RL -Analyte reporting limit.
MOe -Minimum detectable concentration
NO .Not detected at the reporting limit.
U -Not detected at minimum detectable concentration
ENERGYLABORATORIES,INC••2393 Sail Creek Highway (82601)•P.0.Box 3258 •Casper,WY82602
TilIIFree 888.235.0515 •301.235.0515"Fax [phone] •[e-mail]·www.energylab.com
Client:
Project:
Denison Mines USA Corp
1st Quarter Groundwater
QA/QC Summary Report
Revised Date:04126/10
Report Date:02/26/10
Work Order:C10020229
Qualifiers:
RL ~Analyte reporting limit.
MOe·Minimum detectable concentration
,------
Analyte
Method:SW8260B
SamplelD:10·Feb·10_LCS_3
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
m+p·Xylenes
Methyl ethyl kelone
Methylene chloride
Naphthalene
o~Xytene
Toluene
XyJenes,Total
Surf;1,2·Dichlorobenzene·d4
Surr:Dibromofluoromelhane
Surf:p~Bromofluorobenzene
Surr;Toluene-dB
Sample 10:10·Feb_MBLK_6
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
m+p·Xylenes
Methyl ethyl ketone
Methylene chloride
Naphthalene
o-Xylene
Toluene
Xylenes,Total
Surr:1,2~Dichlorobenzene-d4
Surr:Dibromofluoromethane
Surr:p-Bromofluorobenzene
Surr:Toluene-<l8
Sample 10:C10020229·002EMS
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
m+p-Xylenes
Methyl ethyl ketone
Methylene chloride
Count Result Units
1ft Laboratory Control Sample
92 ug/L
10 ug/L
11 ug/L
11 ug/L
9.6 u9/L
21 ug/L
91 ug/L
11 ug/L
9.0 ug/L
11 ug/L
11 ug/L
32 ug/L
1ft Method Blank
NO ug/L
NO ug/L
NO ug/L
NO ug/L
ND ug/L
NO ug/L
NO ug/L
NO ug/L
NO ug/L
NO ug/L
NO u9/L
NO ug/L
1§.Sample Matrix Spike
10000 ug/L
980 ug/L
940 ug/L
1800 ug/L
970 ug/L
2100 ug/L
9400 ug/L
1100 ug/L
RL %REC LowUmit High Limit
Run:GCMS2_1 0021 OA
20 92 70 130
1.0 104 70 130
1.0 107 70 130
1.0 110 70 130
1.0 96 70 130
1.0 106 70 130
20 91 70 130
1.0 105 70 130
1.0 90 70 130
1.0 110 70 130
1.0 107 70 130
1.0 107 70 130
1.0 111 80 120
1.0 101 70 130
1.0 109 80 130
1.0 99 80 120
Run:GCMS2_'002'0A
20
1.0
1.0
1.0
1.0
1.0
20
1.0
1.0
1.0
1.0
1.0
1.0 103 80 120
1.0 98 70 130
1.0 105 80 120
1.0 96 80 120
Run:GCMS2_'002'0A
2000 100 70 130
100 98 70 130
100 94 70 130
100 105 70 130
100 97 70 130
100 105 70 130
2000 94 70 130
100 110 70 130
._--_._-----~_.-
NO A Not detected at the reporting limit.
RPO RPDLJmit Qual
Balch:R129530
02/10/1010:26
02/10/10 12:26
02/10/10 20:14
ENERGYLASaRATORIES,INC.•2393Sail Creek Highway (8260I)•P.O.Box3258 •Casper,WY82802
Toll Free 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·www.energylab.com
QA/QC Summary Report
Revised Date:04/26/10
Client:Denison Mines USA Corp Report Date:02126/10
Project:15t Quarter Groundwater Work Order:C10020229
--_._-_._..~'-------•.._------_._-------.._----_..
Analyte Count Result Units RL %REC Low limit High Limit RPO RPOLlmit Qual I
Method:SW8260B Batch:R129530
Sample 10:C10020229.o02EMS 1§.Sample Matrix Spike Run:GCMS2_100210A 02/10/10 20:14
Naphthalene 890 ug/L 100 89 70 130
o~Xylene 1100 ug/L 100 108 70 130
Toluene 1000 uglL 100 103 70 130
Xylenes.Total 3200 ug/L 100 106 70 130
Surf;1,2~Dichlorobenzene·d4 100 10B BO 120
Surr:Dibromofluoromethane 100 104 70 130
Surf;p-Bromofluorobenzene 100 90 80 120
Surf:Toluene-dB 100 102 80 120
Sample 10:C10020229·002EMSO 1.§Sample Matrix Spike Duplicate Run:GCMS2_100210A 02/10/1020:49
Acetone 9600 ug/L 2000 96 70 130 4.1 20
Benzene 1000 ug/L 100 100 70 130 2.8 20
Carbon tetrachloride 1000 ug/L 100 101 70 130 7.4 20
Chloroform 1700 ug/L 100 103 70 130 1.1 20
Chloromethane 960 ug/L 100 96 70 130 0.8 20
m+p·Xylenes 2100 ug/L 100 107 70 130 1.7 20
Methyl ethyl ketone 9600 ug/L 2000 96 70 130 1.3 20
Methylene chloride 1100 ug/L 100 112 70 130 1.4 20
Naphthalene 1000 ug/L 100 101 70 130 13 20
o~Xylene 1100 ug/L 100 107 70 130 1.1 20
Toluene 1000 ug/L 100 104 70 130 1.2 20
Xylenes,Total 3200 ug/L 100 107 70 130 0.8 20
Surr;1,2~Dichlorobenzene~d4 100 107 80 120 0 10
Surr:Dibromofluoromethane 100 103 70 130 0 10
Surr:p~8romonuorobenzene 100 104 80 120 0 10
Surr;Toluene~d8 100 100 80 120 0 10
---------_._--_.~--...._.._.....-_..__._---
Qualifiers:
RL ~Analyte reporting limit.
MOe ~Minimum detectable concentration
NO ~Not detected at the reporting limit.
Energy Laboratories I;nc
Workorder Receipt C~ecklist
Denison Mines USA Corp
Login compieted by:Corinne Wagner
Reviewed by:BL2000lkschroeder
Reviewed Date:2/9/2010
IIIIIIIIIIII!III"I~1111111111111111111111111111
C10020229
Date Received:215/2010
Received by:al
Carrier name:FedEx
Shipping container/cooler in good condition?
Custody seals intacton 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 propercontainer/botlle?
Sample containers intact?
Sufficient samplevolume for indicated test?
All samples received within holding lime?
ContainerfTemp Blank temperature:
Water v VOA vials have zero headspace?
Water·pH acceptable upon receipt?
Contact and CorrectiveAction Comments:
None
Yes 121
Yes 121
Yes 0
Yes 121
Yes 121
Yes 121
Yes 121
Yes 121
Yes 121
Yes 121
2°C On Ice
Yes 121
Yes 121
No 0
No 0
No 0
NoD
No 0
No 0
No 0
No 0
No 0
No 0
No 0
No 0
Not Present 0
Not Present 0
Not Present 0
No VOA vials submitted 0
NotApplicable 0
~of-LChainofCustodyandAnalyticalRequestRecordlugrlWA
Mt~mM1tWill&'
•_......--..................".• •...,,,............a ..............,......,.""u.....g ...""'''.".u.o.
Comn:m.:,Project N~:,PWS,Permit.Etc,Sample Origin EPA/StateCompliance:
I,hr,<~,r 1J1:",,",/:>-r /f4t7.","J IAln.I-.r State:(A-r Yes G--'"No 0
RepOrtMaii Add'BS:Contact Name:Phone/Fax:Emai!:Sampler:(Please Print)~cJ ~g'tJl /2,,w .PA-i.J~--r;;:,M/If//[./z,/,1:,u79:'IS//rt.-:;tfl '7 '7-;1 I
Invoice Address:I Invoice Contact &Phone:Purchase Order:QuotelBottle em'er:
~"A <:::::.:
Special ReporVFormats:is ~\1@[]§rnlE®ll!J~@ ~Contact EU priorto '-/{Yf'tiRUSHsamplesubmittalvforchargesandCOCIler1D{!J):kiO ",..c [Rc:lD:QOI w Cl scheduling -See IiItv,oL-->°>-15oOW0EDO/EOT(Electroo'c Dala)~u>~m~W InstructionPage
83i:~gg'l :r:'0 ~rp~TempoPOTWIWWTPFonna!:~()c:Comments:o«~di!~~~U co2 ofoState:0 LEVEL IV ~*§8 rooOther:0 NELAC ~~r:s '~i-S On Ice:(yN~-~~r~~'~'<l;f-5W'1""~"'O<lj"'"'r("~>1 '\\W i'l On Bottle Y
(f)~if)c:0,.,Coole<"/,;N~H lnl>ct !J NSAMPLEIDENTIFICATIONCollectionCollectionMATRIXSfgfU!.lure'N
(Name.Location,Interval.etc.}Date Time Mitch,
(,-w Ixrn/~1 /4 2·l:?.lJID Ib5~~
'MIAI :2.&1~'7-ml/)13'13 '!~~w IX .~
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5 \-tIllY,
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Custody ~~""""(Pj).1 /'O;er:''#.21J{f)-C3r rZ/Recci..-e<:lby(print):D<lle!T1me:Signature:
Record Re~nqu~hedby(prinl~DaleJTn.o:(::ilgna:ure:Received by (print):Dale!Trme:Signature:
MUST be _7
Signed ~Lr~-:):;;:,1 "'W '':;1 h iii if'/'"J'19f18IUf •
7.b"'/Samole Disoosal:Return to Client:LabDisposal:r
/
This serves as notice of this possibility.AU sub-contract data will be clearly notated on your analytical repor'!.
Visit ourweb site at www.energylab.com for additional information.downloadable fee schedule.forms,and links.
AMERICAN
WEST
ANALYTICAL
LABORATORIES
Joann Tischler
Denison Mines
1050 17th Sireet,#950
Denver,CO 80265-
TEL:[phone]
FAX [phone]
RE:Ist Quarter Ground Water 20 I0
American West Analytical Laboratories received 6 sample(s)on 2/12/2010 for the analyses
presented in the following report.
463 West 3600 South
Salt Lake City,UT
84115
Dear Joann Tischler:Lab Set 10:1002225
[phone]
Toll Free [phone]
Fax [phone]
All analyses were performed in accordance to The NELAC Institute protocols unless
noted otherwise.American West Analytical Laboratories is certified by The NELAC
Institute in the following states:Utah,Colorado,Idaho,and Texas.Certification document
is available upon request.Ifyou have any questions or concerns regarding this report
please feel fi-ee to call.
email:awal@awal~labs.coll1
Kyle F.Gross
Laboratory Director
The abbreviation "Surr"found in organic reports indicates a surrogate compound that is
intentionally added by the laboratory to determine sample il\iection,extraction,andlor
purging efficiency.The "Reporting Limit"found on the report is equivalent to the
practical quantitaion limit (PQL).This is the minimum concentration that can be reported
by the method referenced and the sample matrix.The reporting limit must not be confused
with any regulatoty limit.
Jose Rocha
QA Ofl1cer
This is a revision to a report originally issued 2/1 8/20 IO.A case narrative,QC pages
and chromatograms have been added to the report.All pages have been updatcd for
pagination.
Laboratory Director or designee
F.Digit«lly ~igllOd by Kyle F.Gross
ON:c"~Kylc f,Gross.o~AWAL.
otl"AWAl,omail=kylc@awal·
labs.COfll,C=US
0"1,,:2010,03,0912:47'26·07'00'
Kyle
Gross
Thank You,
Approved by:
Report Dale:319/2010 l'ilgC I 01'22
All allalys<:s ;lpplicablcto the C\VA.SDWA.and RCRA arc pcrlonllcd ill accordance 10 NELAC protocols.I'c'lincnl ,alllplill!:inl'ol1natioll isl"Cillcd 011 lhe;Iltachcd coe rhis repoll is provided for the exclu,ivc lise orIlle
a(ldresscc,l'rivileges of,lll>s~\lllcn(usc ofIlle IlallleofIhi,compilny or any membcr ofits slaff-0]'reproduction ofthisreporl 'Ill conncC1;O"".'Itll Il,e 'ldvel1;sCmcnl.promOlion or S,lle ofiUlY product or process.or;1I conncet',on
wilh lhc I'C_PIIl>lic:llioll of(his rcpol1 1'01'ilny Ill111l0SC O1hcl'lhilll 1'01'Ihe addrcs,ee willl>c gl'ilnted only on e(HllaCI,This companyileeepls 110 I'CSIXIl\sibilily c,~ecpl for thc duc pCrfOl'llliUleC ofinspeclion ;md'oranalysis in!lood 1:1ilh
and according 10 Ihc ruks oflhe trade and ofscience.
AMERICAN
WEST
ANALYTICAL
LABORATORIES
Client:
Contact:
Project:
Laboratory Number:
Volatile Case Narrative
Denison Mines
Joann Tischler
Ist Quarter Ground Water 20 I0
1002225
463 West 3600 South
Salt Lake City,UT
84115
Sample Receipt [nformation:
Date ofReceipt:
Date(s)ofCollection:
Sample Condition:
C-O-C Discrepancies:
Method:
Analysis:
2112120 10
2/8-2/1112010
Intact
None
SW-846 8260C/5030C
Tetrahydrofuran
[phone]
Toll Free [phone]
Fax [phone]
email:[e-mail]
Kyle F.Gross
Laboratory Director
Jose Rocha
QA Officer
General Set Comments:Tetrahydrofuran was observed above reporting limits on MW-Il
(AWAL 100225-00 IA).
Holding Time and Preservation Requirements:All samples were received in appropriatc
containers and properly preserved.The analysis and preparation of all samples were
performed within the method holding times following the methods stated on the analytical
reports.
Analytical QC Requirements:All instrument calibration and calibration check
requirements were met.All internal standard recoveries met method criterion.
Batch QC Requit'ements:MB,LCS,MS,MSD,RPD,and Surrogates:
Method IlIanks (MBs):No target analytes were detected above reporting limits,
indicating that the procedure was free from contamination.
Laboratory Control Sample (LCSs):All LCS recoveries were within control
limits,indicating that the preparation and analysis were in control.
Matrix Spike 1 Matrix Spike Duplicate (MS/MSD):All percent recoveries and
RPDs (Relative Percent Differences)were inside established limits,with the
following exception:The MS and MSD percent recoveries were outside of control
limits on Methyl tett-butyl ether for sample 1002211-0011'due to sample matrix
interference.
Surrogates:All surrogate recoveries were within established limits.
Cort'eetive Aetiou:None required,
Report Dale:3/912010 Page2 orn
All ~nalysl:,applicabk(0 Ihe C\VA.SDWA,and It('RA Mc pcrfol1ncdin accordaliceto NELAC protocols.I'cllincll!saillplilig il1follnati(lIl is locatedon llie anaehcd COr.Thisrepoll is providcd lortile cxclusive uscofthe
addre%ee.l'rivilcgcsorsulls~'ql\ellllise \lfthename \\fll1;s eompanyol';mymemberofits stair,01'reprodllclion of11Ii,reporl ill wnnec(lOn with the',ld~c'1iscnlellt>promotionor sale orally plO(luct or process.orin eO,lHce(Lon
willi the re-pLiblienlion ofthisrqlo,1 for 1m)'PIIlPO~C olherthan for the addresseewill begrMted only on C(\iuaet Thise(\mpany accepts no reS!l(lIlsibilityexcept lor lhedlleperlolllHlncc ofinspeclion andloran~lysisin g(lod faith
and aceOl'\li"g to Ihe fUll'S orthe tradean(1 ofseicnee.
ORGANIC ANALYTICAL REPORT
A _Reissue vIajJl'eviollsfv gel/erated report-[II/ormation has bcm added.updated.or revised.In/Orilla/ioll hel-elu supersedes fha(oIrlie
previollsly issuedreports.
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City,UT
84115
(80 I)263-8686
Toll Free [phone]
Fax (80 I)263-8687
email:[e-mail]
Kyle F.Gross
Laboratory Director
Jose Rocha
QA Officer
Client:Denison Mines
Project:1st Quarter Ground Water 2010
Lab Sample 10:1002225-00IA
Client Sample 10:MW-II
Collection Date:21l0/2010 11:41 :00 AM
Received Date:21l2/20I0
Metltod Used:SW8260C
Analytical Resnlts
Units:~g/L
Dilution Factor:
Compound
Tetrahydrofuran
Surr:1,2-Dichloroethane-d4
Surr:4-Bromofluorobcnzene
Surr:Dibromofluoromethane
Surr:Tolucnc-d8
Contact:Joann Tischler
Analyzed:21l2/2010 12:24:00 PM
VOAs by GC/MS Method 8260CIS030C
CAS Reporting Analytical
Number Limit Resnlt Qual
109-99-9 1.0 12
17060-07-0 77-144 98.3
460-00-4 80-123 97.9
1868-53-7 80-124 96.8
2037-26-5 80-125 99.8
Repon Dale:3/9/20 I0 Page 301'22
All analyses apillicabk(0 Ihe C\V,\.SDWA,and RCRA arc perlbnll~'{!in accordanceto NELA(protocols_I'cninentsampling infol1llntion is locntcd on the auaciledC(X~_Thisl'ep<)ll is provided for the cxclusive tI,eofthe
addressee,I'ri,-ile\;es OfSllbs~"llICnl liseoftile n-JlIlC01"this Cl)mpallY or~nymemberofits ~\arLor I'eprodlltt'lon ofIh;s rcpol1 inconnectionwith die ad,ertisemenl_promotion or sakofany product or process,orin eOllllcetion
witiltheI'c-pllblicatioll ofthis rcpM for any plll]lOSC othcrthan for theaddressecwill Ixgrantcd only oncontacl Thiscompany ncccpts no responsibility c_,ccpt lortheduc perlbnnanccofinspection and/ol"analysis in good I~\ith
andaccording 10 the rllks orthe trade and ofscienec.
ORGANIC ANALYTICAL REPORT
1\_NeisSllC!o/apreviously generafed report.h!fol'lIItllioil has been added.updated,or revised.h!/ormaliollilereill supersedes fhal (?Ftl,e
previoll.l'f)'issued reports.
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City,UT
84115
[phone]
Toll Free [phone]
Fax [phone]
email:[e-mail]11l
Kyle F.Gross
Laboratory Director
Jose Rocha
QA Officer
Client:Denison Mines
Projeet:1st Quarter Ground Water 2010
Lab Sample 11):1002225-002A
Client Sample !D:MW-20
Colleetion Date:2111/20108:00:00 AM
Received Date:2112/20 I0
Method Used:SW8260C
Analytical Resnlts
Units:jlg/L
Dilution Factor:
Compound
Tctrahydrofuran
SUIT:1,2MDichloroethane-d4
SlllT;4-Bl'omotluorobenzene
Surr:Dibromotluoromethane
Surr:Toluene-d8
Contact:Joann Tischler
Analyzed:2112/2010 12:45:00 PM
VOAs by GC/MS Method 8260C/S030C
CAS Reporting Analytical
Number Limit Resnlt Qual
109-99-9 1.0 <1.0
17060-07-0 77-144 99.9
460-00-4 80-123 98.0
1868-53-7 80-124 97,7
2037-26-5 80-125 99.8
Report Dale:3/9/2010 Page 4 of22
All JIlJ\Yscs applicable to theCWA,SDWA,and RC!tA arcpcrfOtlncd in accordanccto NELAC protocols,l'cnincnt sampling infonnation is locatcd011 theattached COt'This repOl1 is providcd forthe e~dllsi\'euseofIhe
addressee.I'ri\'ileges ofsubsequent llse ofthc ll,III\Cofthis c0nlpa'Iyorany mcmbcrofil'.;statLor rcproductionofIhis rcport in col1l1ccliol1 with thcaO\'Ct1isclllcm.promotion or saleor <lily productor process.or'til conncction
withthc rc.p"blicatir)ll orthis tcpo'1 fOI"any plll,llOSC 0therthall forthe addrC'Ssee will begranted onlyoncotllacl.Thiscompanyaccepts no reSllO'lsibility e~ccpl 10,.thedtlc pcrformanceofinspeetion and'oranalysis in g()od failh
andaccording 10 the ",ie'S ofIhe tmdcandofSClencc.
ORGANIC ANALYTICAL REPORT
1\_Reissue ora prelliously generatedreport.h!/OI'I/It/lioli has been added.updated.or revised.!I!/ol'lIIalioJl hereill slipersedes {{wI (?(tlle
previolls~J'issuedreports.
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City,UT
84115
[phone]
Toll Free [phone]
Fax [phone]
email:[e-mail]
Kyle F.Gross
Laboratory Director
Jose Rocha
QA Officer
Client:Denison Mines
Project:1st Quarter Ground Water 2010
Lab Sample ID:1002225-003A
Client Sample ID:MW-22
Collection Date:2/8/20102:06:00 PM
Received Date:2112/20 I0
Metbod Used:SW8260C
Analytical Resnlts
Units:/lg/L
Dilution Factor:
Compound
Tctrahydrofuran
Surr:1,2-Dichloroethanc-d4
SUIT:4~Bromofluorobenzenc
SUIT:Dibromofluoromcthane
SUIT:Toluene-d8
Contact:Joann Tischler
Analyzed:2112/2010 1:06:00 PM
VOAs by GC/MS Method 8260CIS030C
CAS Reporting Analytical
Number Limit Result Qual
109-99-9 l.0 <l.0
17060-07-0 77-144 99.2
460-00-4 80-123 99.8
1868-53-7 80-124 97.2
2037-26-5 80-125 99.4
Report Date:3/9/2010 Page 5 of22
All analyses applicable 10 theCWA,SDWA.and ROtA arc perlonned in accordancetoNE1,AC prolocols,I'eninent sampling irllonnalion is locatedon thea!taehed coe.fhis leponis provided lor theexcilisivelise Oflbe
addr{>~cc.l'rivile&es01'SltbSC(jl'¢llt U~{ofIhe n;1I11{ortll;S{Olllly.\ny (Ifanymember 01'11,MarLoI'reproduClioll orthis rcporli'l connccf,ollwilh lhe adl'enisemenL pro,nollonor saleofany prodUCI or process.orin eOllllee(,on
\\'ith Ihe re_pllblicali(Hl or Ihis rcpon for anyplH]lOSe olherIhan for Iheaddr~'Ssee \\'ill he~r;u\tedonlyon ,'OIHacl.Tlli,conlpilrly acceptsno responsibilityexeepl for theduepcrl(llll1anee ofinspectiollandior analysis in goodfailh
andaccording In tile nlks dtlletradeand of~cicncc.
ORGANIC ANALYTICAL REPORT
1\_Reissue o(aprel'io/ls~)Igel/cratedreporl,h(!orll/alioll hasbeen added.updated.01'revised.h!!oflllatioll Ilereill supersedes llialo(the
previollsly issuedreporls.
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City,UT
84115
[phone]
Toll Free [phone]
Fax (80 I)263-8687
email:awal@awal·labs.com
Kyle F.Gross
Laboratory Director
Jose Rocha
QA Officer
Client:Denison Mines
Project:1st Quarter Ground Water 2010
Lab Sample ID:1002225-004A
Client Sample ID:MW-30
Collection Date:2/9/20103:26:00 PM
Received Date:2112/20I0
Method Used:SW8260C
Analytical Results
Units:~lg/L
Dilution Factor:
Compound
Tetrahydrofllran
Surr:1,2-Dichlorocthanc-d4
Surr:4w Bromofluorobenzene
Surr:Dibromotluoromethane
Surr:Tolucnc-d8
Contact:Joann Tischler
Analyzed:2112/2010 1:27:00 PM
VOAs by GC/MS Method 8260C/5030C
CAS Reporting Analytical
Number Limit Result Qual
109-99-9 1.0 <1.0
17060-07-0 77-144 100
460-00-4 80-123 98,9
1868-53-7 80-124 98.1
2037-26-5 80-125 99.6
Report Dale:3/912010 Pagc6or22
All anillys~s ;lppli~~,blc 10 lhe CWi\.SDWi\,;lnd RCRi\arc p~rfol1n~d in accordance (0 NELAC prowcols,l'el1inent ,amplinginfonn;lliOI1 is located OIl the all<lchcd COC I'his repol1 i,pro"idedfor the e~el\l,i\'C \I,eol'tlte
addressee.Privileges ofs\lbs~quenl \lse orlite name orlhi,company orany mcmberorits,tareorrcproduction Oflhisrcporl in ~ol\n~cliol\wilh lhc a(kcniscmcnt,promotion \>I'sale01'Wly product or proc~5s,or in cont\cclion
withthel'e-pllblication orlhisrepoll 1'01'any PIII])o~e olherlhan lorlheaddres,eewillllll grmned onlyOIl e(llll;lCl.This ~Olt1p;lny ;lCCCpIS no respon,ibility cxc~pt lor lhedue pCrlOnll;llleC ofinspection and'or analy~isin good faith
andaccordingtolile nlks orlhe tradealld of~cience.
ORGANIC ANALYTICAL REPORT
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City,UT
84115
(801)263-8(r86
Toll Free [phone]
Client:Denison Mines
Project:1st Quarter Ground Water 2010
Lab Sample 10:1002225-005A
Client Sample 10:MW-31
Collection Date:2/9/20102:34:00 PM
Received Date:2/12/20 I 0
Method Used:SW8260C
Analytical Resnlts
Units:~lg/L
Dilution Factor:
Compound
Tctrahydrofuran
Surr:1,2-Dichloroethanc-d4
Surr:4-Bromotluorobcnzene
Surr:Dibromofluoromcthane
Surr:Toluenc~d8
Contact:Joann Tischler
Analyzed:2/12/2010 I :48:00 PM
VOAs by GC/MS Method 8260C/S030C
CAS Reporting Analytical
Number Limit Result Qual
109-99-9 1.0 <1.0
17060-07-0 77-144 101
460-00-4 80-123 101
1868-53-7 80-124 98,1
2037-26-5 80-125 98.7
Fax [phone]
email:'<Iwal@awal-1ab:'>.Col11
Kyle F.Gross
Laboratory Director
Jose Rocha
QA Officer
A _Reissue 0((/prellio/ls~J'gel/era/ed report.III!Orl/Wfio/l has been added.updated,orrevised.h!/orm(llionllereillsupersedes fhal o(fhe
previollsly issuedreports.
Report Dale:3/9/20 I0 Page 7of22
All atwlysesapplicabletotileCWA,SOW,\,alld RCl(,\arc perl'omledin accordallc~to NELAC protocols,l'eI1i!\~111samplillij infonnation i5 loealedon th~<ll1aehed COc.This rcpOlt is provided for IheC.~dIISivc ll,eortile
addressee,I'rivilcijcs ofS"bs~'<lllenlHseoflhenameofIhi,company orany lIlembe,'orits~t;llr.01'repmduction ofthi,repOll in connection with theadvt,(If,cl'llcnt promotion or5~lcof~lI\yprodlici or process,orinconneCtioll
lI'ilh Ihe re.pllblieatiollorthis I'epon for any plll]1oseolberIhan for Ihe mldr~""sce\\'ill begrantedonlyon conlactThiscompanyacccpls tlO responsibililYc_~ecpl fortile dill.'pcrfonnanceofillSpCCli('l1l and10rallalysis ing('lod faith
and aeclmling 10 Ihe r"ksoftheIrmlc and ofscienee
ORGANIC ANALYTICAL REPORT
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt [,ake City,UT
84115
[phone]
Toll Free [phone]
Client:Denison Mines
Project:1st Quarter Ground Water 2010
Lab Sample 10:1002225-00GA
Client Sample 10:MW-65
Collection Date:219120102:34:00 PM
Received Date:2/12/2010
Method Used:SW8260C
Analytical Resnlts
Units:~g/L
Dilution Factor:I
Compound
Tctrahydrofuran
Surr:1,2~Dichloroethane-d4
SUIT:4~Bromof1uorobenzene
Surr:Dibromofluoroll1cthane
Surr:Toluene-d8
Contact:Joann Tischler
Analyzed:2/12120102:09:00 PM
VOAs by GC/MS Method 8260C/5030C
CAS Reporting Analytical
Number Limit Resnlt Qual
109-99-9 1.0 <1.0
17060-07-0 77-144 100
460-00-4 80-123 100
1868-53-7 80-124 97.2
2037-26-5 80-125 99.0
Fax [phone]
email:<[e-mail]
Kyle F.Gross
Laboratory Director
Jose Rocha
QA Officer
1\_Reisslle o(aprel'iOlls~\'gel/era/cd report,b!!orll/aliolllws berm added.updated,orrevised.Illformo/ioll Ilereill supersedes fhalvOile
previollsfl'issued I'epo!"!.>.
Report Dale:3/9/20 I0 Page 8 01"22
All analyse,JpplicJblcto tileCWA,$DWA,Jml HCRA arcperlonHed in accordance to NELAC protocols.I'enincmsamplin;l inlon1l<llion is localedon lhe anaehed COC This repolt is pl'Ovidcd lorthc exclusivcliseofthc
addl'e~see.l'l"il'ilq;esol"$Ub~(.'<1ltenlllseofthe n;lIneol"this company orany member ofits staff,or repl'Oducti(lIl oftb'lsrqmrt '111 C01l1lcctiollwith theadl'c<tisctncJlI,promotionor saleorlin)'productorprocess,orincOlilleetion
with the r<>ptlbliemion ofIIIis repOl1 for ani'pUIJlllseotherth,Hl 1'01'the addresseewill begrallt,,,l on\y onCOiliact This company<lccepts no responsibilitye"cepll'ol"tile dllc perform,lnce ofinspection and'oranalysisill goodfaith
and according to the nile'S ol"thetradeandofscicnce.
AMERICAN WEST ANALYTICAL LASaRATORIES Kyle F.Gross
463 \Vest 3600 South Laborator)'Director
Salt Lake City.UT 84115 Jose Rocha
(Xli])163-l((,l({,.Toll FI~~(1Il\l\)2f,3-l\(,l\(,.FJ.'(l(lIl)263-l\(,l\1 QA omcer,,-m:,,1 a,,~l·i~.~\\Jl-bb,COIll.\\eb "\\\\~\\3I·bb~COm
QC SUMMARY REPORT
CLIENT:Denison Mines
Lab Set ID:1002225 Dept:MSVOA
Project:1st Quarter Ground Water 2010 SampType:LCS
Amount Original Amllysis
Sample 10 Anal:ytc Voits Method Result Spiked Amount %REC Limits %RPO RPD Limit Qualitiers Date
Les vee 021210A 1. 1.I-Trichloroethane JlglL SW8260e 20 20.00 0 101 499-140 2!12/2010
Les vee 021210A 1.1-Dichloroethene )lglL SW8260e 18 20.00 0 92.4 52-171 211212010
Les vee 021210A 1.2-Dichlorobenzene Ilg/L SW8260e 21 20.00 0 106 67-135 211212010
Les vee 021210A 1.2~Dichloroclhane ~tg!L SW8260e 20 20.00 0 97.6 60-137 211212010
Les vee 021210A Surr:1.2~Dichloroelhalle·d4 %REC S\A'8260C 48 50.00 96.5 69-132 2/12/2010
Les vee 021210A 1.2-Dichloropropane JlglL SW8260e 20 20.00 0 101 59-J35 2/1212010
Les vee 021210A Surr:4-BromoJluorobenzene %REC SW8260e 49 50.00 978 85-115 2/]2/2010
Les vee 021210A Benzene /lgiL SIV8260e 21 20.00 0 103 62-127 211212010
Les vee 021210A Chlorobenzene Mg/L SW8260e 21 20.00 0 104 63-140 2/12/2010
Les vee 0212lOA Chloroform /lgiL SW8260e 20 2000 0 101 67-132 211212010
Les vee 021210A Surr:DibromoHuoromethanc %REC SW8260e 50 5000 99.0 80-120 21l2/2010
Les vee 021210A Elhylbcnzene jlg/L SW8260e 21 20.00 0 105 55-133 2112120 I0
Les vee 021210A lsopropylbenzene ~lgJL SW8260e 18 2000 0 91.0 60-147 211212010
Les vee 021210A Methyl tert-butyl ether Mg/L SW8260e 30 2000 0 152 37-189 211212010
Les vee 021210A Methylene chloride jlglL SW8260e 19 20.00 0 94.2 31-124 2112120 I0
Les vee 02121 OA Naphthalene /lgiL SW8260e 16 20.00 0 80.5 41-131 2112/2010
LCS VOC 021210A Toluene /lgiL SW8260e 21 20.00 0 103 67-126 21l2/2010
Les vee 021210A Surr:Toluene-dB %REC SW8260e 49 50.00 989 81-120 2/12/2010
Les vee 0212lOA Trichloroethene /lg/L SW8260e 21 20.00 0 105 54-152 211212010
Les vee 021210A Xylenes,Total Ilg/L SW8260e 63 6000 0 105 52-130 211212010
Report Date:3/9/2010 Page 9 of22
All "n~I~"o,apphoaok to lho elVA.SDWA 'mJ ltCRA,~oporformed In ",cord"n;;~10 ;\ELAC proloo"I'_Penm~all,,,,,phn:;mfonu.,ll<H\'S )ooatcdon lhe'atlod"dcoe TI",r~p~r1 '"pm''cl,'d for Ih~~~duSl\e uso o[lh~~dclr~"c-':Pm,k:;~,or"ub"~qu,,nl"'0oflhc n"ltl~0[111"~ol]'I'''n:oran.'",~mb~r oftl$'I:>JT.orreprod"otlon
ofth"r~ponmconn""t,on ",,11the "cl,~f1t"O",onl.prOll1m;onor",10 ofan:proJ""orproe~",-0'in OOnneClron "'l1o llt~,o_puOlio"HOnoftl",,oponfo''In'purpose01100r lbon for lh~,Jdre"",",I!be,;r"",oJonl.'onoonl~l Th,;~onlp~n'o~CCp1>no ,~"pon<;olilh ~~C"l'l for,ned""por(on1"nooo(m,p"Clton,,,,Jio,'",o!.'Sl,m-",ood
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AMERICAN WEST ANALYTICAL LABORATORiES
463 West 3600 South
Salt Lake City.UT 84115
(XIII)2()3·~(,X(,.Toll FI~~(XXX)2{,3-xroX(,.F;l.~(::;01)2(,3-~(,:';7
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QC SUMMARY REPORT
Kyle F.Gross
Laboratory Director
Jose Rocha
QA omcer
CLIENT:Denison Mines
Lab Set ID:1002225 Dept:MSVOA
Project:1st Quarter Ground Water 2010 SampType:MBLK
Amount Original Analysis
Sample ID .-\nalytc Units IVlcthod Result Spiked Amount o/(IREC Limits lYoRl)D RPD Limit Qualifiers Date
MB VOC 02121 OA Surr:1,2-Dichloroethane~d4 %REC SW8260C 50 50.00 100 69~132 2/12/2010
M8 VOC 02 12 lOA Surr:4-Bromofluorobenzcne %REC SW8260C 50 5000 99.9 85-115 2112/2010
M8 VOC 021210A Surf:Dibromofluoromethane %REC SW8260C 49 50.00 97.7 80-120 2/12/2010
M8 VOC 021210A Telrahydro!uran ~lglL SW8260C <2.0 2/l2I2010
M8 VOC 021210A SUff:Toluene-d8 %REC SW8260C 50 50.00 99.6 81-120 2112120 I0
Report Date:3i9:2010 Page 10 of22
AllanA""'"ppll~"bk'0 'h~CW.-\.$OW,\.ood RCKA ar~p,r!Qnncd "',",o<>"kmcc 1<>?\EL:\Cpf{llO~ols l'~rtm~ol"nlll'lln~mlonnOMIl"io"olcd<>n 'hc~"o,;h,;dCOC TIl<"rCpO"'"pro\,d~d f<>f tllc c,\.;I"s,,~usc of,hc ~dd",,,,,~.I'm ,k~~<ofSUb'CqLLG'"u,~of,l1,no""OflhlS~<>",p""~oram memberof,t,'lalT,or ,q)",d"euon
of11",repo"In wllne~llOn \\J\h lhe ,d\efl',"",Onl.1'''''1)o,iQn or",Icof"n~p,O<l"Cl or proc"".Of ,n ,OnJlCOl"m",,11lho f"-l'ubk"lioJ\Ofl1",r~Jl"rtfor ~n~purposeolher Ih"nfor the~Jdr">s,,e",II b~\;r""l"j oni.,on "Qnl~c'TimeOl"I"'tl~'''''1'1<norc.pon"b,h,'c.,e'plfor lhed""pe,fonnonooo[m,p.,,;uon ,,,,<I.-'or",,,,I'm on l,ood
[,.tliland o,:o,,,Jing '0lh,;'ul.;,of'holrod~"Jldof'O'~Jl"~
CLIENT:Denison Mines
Lab Set!D:1002225
Project:1st Quarter Ground \Vater 2010
AMERICAN WEST ANALYTICAL LABORATORIES
463 West 3600 South
Salt Lake City.UT 84115
(~"l)2(,_'·U,~(,.ToH Fr~~(~~~)2()3·~(,:s(,.F...\(Mil)2(,3-;-1(,;-;7
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QC SUMMARY REPORT
Dept:MSVOA
SampType:MS
Kj'Je F.Gross
Laboratory Director
Jose Rocha
QA oniee,.
Amount Original Analysis
Sam!llc ID Anal.ytc Units ,\'lethod Result Sllikcd Amount %REC Limits %RI)D Rl'D Limit Qualifiers Datc
1002211-00IFMS 1,1.I-Trichloroethane ~glL SW8260C 220 2000 0 112 67-147 2/l2/20I0
1002211-001FMS I,l-Dichloroethene Ilg/L SW8260C 200 200.0 0 101 62-152 2/l2/2010
1002211-001FMS 1,2-Dichlorobenzene Ilg/L SW8260C 230 200.0 0 116 70-130 2/12120I0
1002211-001FMS 1,2-Dichloroethane ,<giL SW8260C 210 2000 0 104 39-162 2!l2i2010
1002211-00IFMS Surr:L2-Dichloroethane-d4 %REC SW8260C 490 5000 981 77-144 2!l2/2010
1002211-00IFMS 1.2-Dichloropropanc !1g/L SW8260C 220 200.0 0 110 70-130 2/l2/20I0
1002211-00IFMS Surr:4-Bromotluorobenzene %REC SW8260C 490 5000 97.9 80-123 2112/2010
1002211-00IFMS Benzene J-IgiL SW8260C 1.200 200.0 997.1 117 66-145 2112/2010
1002211-00IFMS Chlorobenzene jlg/L SW8260C 230 200.0 0 113 77-123 2/1212010
1002211-00IFMS Chloroform J-Ig!L SW8260C 220 200.0 0 III 50-146 2/l212010
IOO2211~OOIFMS Sun:Dibromolltloromethane %REC SW8260C 490 500.0 98.0 80-124 2/l212010
1002211-00IFMS Ethylbenzene J-Ig!L SW8260C 300 2000 76.23 114 70-130 2/1212010
1002211-00IFMS Isopropylbenzene J-IgiL SW8260C 210 200.0 4.670 102 70-130 2!l2/2010
1002211-001FMS tvIethyl ten-butyl ether jlg/L SW8260C 470 200.0 105.7 184 48-142 111112010
1002211-00IFMS Ml':thylene chloride J-lgiL SW8260C 200 200.0 0 101 65-135 2/l2/20I0
1002211-001FMS Nuphthalene jlglL SW8260C 240 200.0 46.86 98.5 44-129 2!l2/20I0
1002211-001FMS Toluene J-Ig/L SW8260C 1.600 2000 1,372 98.5 18-192 2/l2/20I0
1002211-00IFMS Sun:Toluene-d8 %REC SW8260C 490 500.0 98.5 80-125 2112/2010
1002211-001FMS Trichloroethene IlgiL SW8260C 230 200.0 0 115 61-153 2/1212010
1002211-00 IFMS Xylenes,TOlal pglL SW8260C 1.600 6000 934.2 114 42-167 2!l2/2010
,_MOlrix spike reCOH!/Y 1I1dicotes l/IotrLy il1leljerence.Ihe method is in cOJ1lrolas indicatedbyThe LCS
R~port Dal~:319/20]0 Page 11 of22
All ""01)s·~<ol'pl."obl"toIho CWA $DIVA.ond ROtA,,,,p,'rlonn"d m,,,,conjon~c to;-<ELAC I'rolO;;ol,Pertmonl,~",phn~mfonnollOn"lo",nod<In Ih"olloch"dCOC Tin,r"I'0T1lSpro',d,;Jfor 1ho e.~d"s"c "s~Oflho,ddro"oo 1'1JI,k"e,of""bseq"ont"'~oflhon"m~"flh,s~omp~"~or'n)m"",bofof,lS slaly'or foprod".::tion
0111",,"port",~onnc"'lWnlI,th ,h~~d'eT1l,~",enl,promollon or s"l~of"n~prodtL~10'pro"",,_or III ~onn~"t,on II nh tho rc·p"b]je~Hon ofth"reportfOf "n~P"'1'<"C",h",11l0n for ~h"~dd",,,,,,,,,<II be ~',",kJ 0~1:on ~o""'"liB>~oml',n)""";;pts no fe,po"S1b,jj,~~.~~~;>t for th~d,,~perfonn,,,eeofm,po"non "ndior"""I,"s III <,ood
[",th "nJ """orJmg 10 ,h~rule'sOflho Ir~de~ndof,,,,,,noc
AMERICAN WEST ANALYTICAL LABORATORIES Kyle F.Gross
463 West 3600 South Laboratory Director
Salt Lake City.UT 84115 Jose Rocha
(15tlll 2(,3·SC.g(,.Toll Frc~(:\:\1»2(,3.l;(,l(•.F;l.~(XI'!)2(,3.U,X7
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QC SUMMARY REPORT
CLIENT:Denison Mines
Lab Set lD:1002225 Dept:MSVOA
Project:1st Quarter Ground Water 2010 SampType:MSD
Amount Original Analysis
Sample ID Analytc Cnits Method Result Spiked Amount %REC Limits %RI)O RPD Limit Qualifiers Date
1002211-00IFMSD I I.J-Trichloroethane !J.g1L SW8260C 220 200.0 0 110 67-147 2.52 25 2112/2010
1002211-001FMSD 1.1·0ichlofoethene J.lg/L SW8260C 200 2000 0 99.6 62-152 1.59 25 2/12/2010
1002211-001FMSD J.2-Dichlorohenzene MglL SW8260C 230 2000 0 J15 70-130 0.651 25 211212010
1002211-00IFMSD 1.2-Dichloroethane ).lglL SW8260C 210 200.0 0 105 39-\62 1.34 25 2112/2010
1002211-00IFMSD Sure 1.2-Dichloroethane-d4 %REC SW8260C 480 500.0 96.9 77-144 2Il2/2010
1002211-001FMSD 1,2-Dichloropropanc JlglL SW8260C 220 200.0 0 108 70-130 1.38 25 2112/20 t0
1002211-00IFMSD Surr:4-Bromofluorobenzene %REC SW8260C 490 500.0 97.6 80-123 2112/2010
1002211-001FMSD Benzene pglL SW8260C 1.200 2000 997.1 101 66-145 2.54 25 211212010
1002211-00IFMSD Chlorobenzcne J.-lg/L SW8260C 230 200.0 0 113 77·123 0.309 25 2/12/2010
1002211-00IFMSD Chloroform ~lg!L SW8260C 220 200.0 0 III 50~146 0.181 25 2112/20 I0
1002211-00IFMSD Surr:Dibromofluoromcthane %REC SW8260C 500 500.0 99.7 80-124 2Il2/2010
1002211-00IFMSD Ethylbenzcne pg/L SW8260C 300 200.0 76.23 110 70-130 3.03 25 2112/2010
1002211-00IFMSD Isopropylbenzene I1g!L SW8260C 200 200.0 4.670 985 70-130 2.93 25 2Il2/2010
1002211-00IFMSD Methyl tcrt-butyl ether I1g!L SW8260C 490 200.0 105.7 192 48-142 3.43 25 2/12/2010
1002211-00IFMSD Methylene chloride )lg/L SW8260C 200 200.0 0 100 65-135 0.349 25 2112/20 I0
1002211-00IFMSD Naphrhalene I-lg/L SW8260C 240 200.0 4686 97.9 44-129 0.534 25 2112/2010
1002211-00IFMSD Tolucne ~lg/L SW8260C 1.500 200.0 1,372 83.0 18-192 199 25 2Il2/2010
1002211-001FMSD Sun:Toluene-d8 %REC SW8260C 500 500.0 99.7 80-125 2/12/2010
1002211-00IFMSD Trichloroethcne )lglL SW8260C 220 200.0 0 112 61-153 2.37 25 2Il2/2010
1002211-00IFMSD Xylencs.TOlal )lglL SW8260C 1,600 600.0 934.2 108 42-167 2.36 25 2/12/2010
,_Marrix spike recovery indicares l/IatrL,·!nteljerence.l1Ul methOdis ill cO/11rol as indicated by rhe LCS.
Report Date:319/2010 Page 12 of22
.-\11 ",,,,I,,.;,"pplto"bk10 Iho CW.-\.SDW.-\."nJROtA"'~p.;,fon"od m :",oorJon,c'0 :-;ELAC1"0'000],P~r1incm"mphn);,nfOnl1illlOn I'10"'ldon Ihe"u"d",dCOe.nllS'OpOrl IS PfO\,d.;d lorIn"c.,d"$l\C"',Oflh.;,ddrc<s,,~Pmlle!;C>01","b,~qLl~111 u,~ofln~l1"m~ol"ln",omp,n,or"n\m.;mb~rof nsSl~rr.Of rcl'fod"~llon
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Quantitation Report (QT Revie'ded)
1002225-001A
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Feb 15 08:44:30 2010
C:\MSDCBEM\1\METHODS\AFULLW_C9.~
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C:\msdehem\1\Dll.T11.\FeblO-C\12FEBlO\
ll.98L2252.D
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Quantitation Report (QT Revie,ved)
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AFULLW_09.M Mon Feb 15 09:16:12 2010 Page:4 Report Dale:3/9/2010 Page 15 of22
Quantitation Report (QT Revie;'led)
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AFULLW_09.M Mon Feb 15 09:17:18 2010 Page:4 Repon Da10:3/9/2010 Pag0 17 of22
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AFULLw 09.M Mon Feb 15 12:12:49 2010 Page:4 Repon Dale:319i2010 Page 19 of22
Data Path
Data File
Acq On
Operator
Sample
Hisc
ALS Vial
Quantitation Report
C:\msdchem\l\DATA\Febl0-C\12FEBlO\
1I.91iJ:1BLK.D
12 Feb 2010 8:24 am
ME voe 0 1210A
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Quant Title
QLast Update
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2000000
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1000000
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Feb 15 08:39:55 20 0
C:\MSDCHEM\I\ME HODS\AFULLW_09.M
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Thu Feb 11 07:1 :16 2010
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AFULLW_09.M Mon Feb 15 12:13:22 2010 Page:4 Repor1 Date:3/9/2010 Page 20 of22
Quantitation Report (Not Revie'rled)
C:\ms chem\1\DATA\Feb10-C\12FE310\
A94S2 l1.D
12 Fe 2010 9:28 am
Data Path
Data File
""cq On
Operator
Sample
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ALS Vial
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Feb 12 09:39:59 2010
C:\MSDCHEM\1\METHODS\AFULLW_09.M
VOA Calibr tio
Thu Feb 11 7:1 :16 2010
Initial Cal bra ion
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AFULLW_09.M Mon Feb 15 09:27:12 2010 Page:4 Report Dale:3:'9/2010 Page 21 0[22
Quantitation Report (Not Reviewed)
C:\msdchem\1\DATA\Febl0-C\12FEBlO\
A95D2111.D
12 Feb 2010 9:49 am
Data Path
Data File
.seq On
Operator
Sample
Hise
ALS Vial
l002211-001FM D
MSD 5MLI CML
9 Sample Mu tiplier:
lOF3
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Quant Time:Feb 12 10:01:16 2010
Quant Method C:\MSDCHEM\1\METHODS\AFULLW_09.M
Quant Title VOA Calibration
QLast Update Thu Feb 11 07:19:16 2010
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AFULLW_09.M Mon Feb 15 09:27:45 2010 Page:4 Report Date:3/912010 Page 22 of22
American West Analytical Laboratories ~
LEVEL III
F::lient m:DEN100
I,Project m:
Project:1stQuarter Ground Water 2010
Joann Tischler
COMMEI\TS :I
No Hard Copies.QC 3 and EDD's added 318110;
j
Matrix Test Code Hid MS SEL Sub Storage
Aqueous 8260-W 0 0 ~0 VOCFridge
8260-W 0 0 ~C voe
8260-W 0 0 ~C voe
8260-W 0 0 ~0 VOCFridgc
8260-W 0 0 ~'J VOCFridge
8260-W 0 0 ~LJ VQCFridge
1002225
Standard
09-Mar-lO
Work Order:
WOType:
QC ~o&,f
2/26/2010
2/26/2010
2/2612010
2/2612010
212612010
2/26/2010
DateDue
Completed By
Reviewed By:
Reviewed By:9
IContact:,
'PM:
IQCLevcl:
DateCollected Date Received
2/1112010 8,00,00 A<Vl
2/10/2010 11:41:00 A.l'vf 2112/2010 10:00:49 .1\:.\1
2/912010 2:34:00 PM
2/812010 2:06:00 PM
2/912010 3126,00 PM
SampleID ClientSample ID
lOO2225-001A MW-ll
1002225~OO2A MW-20
lOO2225·003A MW-22
lOQ2225-004A MW-30
iOO2225-005A MW-31
IOO2225-00GA MW·65
ChkList Completed On:
WORK ORDER Summary
IChkList Reviewed On:
!WO Reviewed On:2/1212010
;.,
American West Analytical Laboratories
WORK ORDER Summary 12-Feb-l0
Work Order:1002225
ClientID:DENIOO J Contact:Ryan Palmer
Project !D:IPM:COMMENTS:I
Project:1st Quarter Ground Water 2010 QCLevel:LEVELl No Hard Copies;~JChkListCompletedOn:Completed By
ChkList Reviewed On:Reviewed By:I
WO Reviewed On:Reviewed By:11k"'-,
Sample ID Client Sample ID Date Collected DateReceived Date Due Matrix Test Code Hid MS SEL Sub Storage
iOO2225-001A MVHl 2110/201011:41:00 1\...i\1 2111/2010 10:00:49 AIv[212612010 Aqueous 8260-W [J [J 0 [J YOCFridge
lOO2225~OO2A MW-20 2111/2010 8:00:00 AM 2/261201O 8260-W [J [J 0 n '00
IOO2225-003A MW-22 218/20102:06:00 PM 2/26/2010 8260-W U [J 0 [J voC
1002225-004A MW-30 219/20103:26:00 PM 2126/2010 8260-W [J [J 0 [J YOCFridge
IOO2225-005A MW~31 2/9120102:34:00 PM 2i26/2010 8260-W [J [J 0 [J VOCFrldge
lOO2225-006A MW-65 2/2612010 8260-W [J [J 0 [J YOCFridge
Sheet 1 of 1
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
rpalmer@denisonmines,com
[e-mail]
Chain of Custody/Sampling Analysis Request
Project Samplers Name Samplers Signature
1st Quarter Ground ;]aJWJcH~Water 2010 Tanner Holliday v
Date Time
Sample ID Collected Collected Laboratory Analysis Requested
MW-11 2/10/2010 1141 THF
MW-20 2/11/2010 800 THF
MW-22 2/8/2010 1406 THF
MW-30 2/9/2010 1526 THF
MW-31 2/9/2010 1434 THF
MVJ-b">~/qh-o'i:J 1434 ,HI"
QC 3 and an EOD added 3/8/l0 per Joann Tischler (see attached email)-RW ,I
,nofify Ryan Palmer of Reciept tempature on these samples Immediately!Thank you.
Relinquished By:(Signature)~U{J;~
Relinquished By:(Signature)
Daterrime Receive y:(Signature)
2/11/2010
1400
Daterr'e Received By:(Signatur )~C
DatelTime
Lab Set JD:10 0'2-.7-.;2,S'
I Samples \Vere:COC TaDe Was:I Container Type:No.Rec.l.;a ShiDDed By:U.fS rresent on OuterPackage f'B..6,WAL Supplied Plastic
,0 Hand Delivered ){1Yes OND ON/A . 0 AWAJ.Supplied Clear Glass .
Io Ambient I Unomken on Outer pacl>:age o AWAL Sum)lied Amber Glass
,)S[Cl1iHed ~.'1 !mYes 0 No 0 N/A o AWAL SUPP:~OCITOXVials
.TemQerature °C Present on Sample D Amber 0 Clear D ~pace 0 No Headspace
Rec.Broken/Leakincr DYes ilrNo ON/A .DYes DNa DN/A D Non AWAL Supplied ConffiHt.er
Notes:I Unbroken on Sample Notes:~DYes ONo DN/A
.Properly Preserved &Yes DNo DN/A Notes:ftes:I
,Rec.Within Hold .eJ Yes DNa Discrepancies Between Labels and CDC DYes AfNo
Notes:INotes:
I I
Poura small amount ofsample in the sample.lid
Pour sample from Lid gently overwide range pH paper
Do Notdip the pH paper in the sample bottle or lid
If sample is not preserved.properly list its extension and receiving pH in the appropriate column above
Flag coe and notify client forfurther instructions
Place client conversation on coe
Sampies maybe adjusted at client jequest
1)
2)
3)
4)
5)
.6)
7)
Procedure.
I Bottle Type Preservative I All DHs OK I I I I I
IA ,pH <2 H2S04 I I I I I I I!!
I COD H '-L.Y2&:.4-J I I I I I
I
!Cyanide PH>i2NaOH -I--..I I I I Ir
Metals IDH<2HNO,=..:c !I I
N02 &NO,pj-j <2 H2SO,I ~!!!I
Nutrients pH <2 H2SO,J
------
I J I .I
O&G pH <2 HCL I ------
r I !
Phenols pH<2H2SO,.i ,
-------
I
Sulfide I pH>9NaOH,ZnAC .~
TKN .pH <:2 H2SO,I I ~,
TOC DH <2 H,PO,~i
T PO,pH <2 H2SO4 .--------I '.
TPH pH <2 HCL I ,
--------I I I i'-----.
I I ,!I "-
!I I I I ""-
....J I I I J .I r---..,,
UPS Internet Shipping:Shipment Label Page 1 of 1
UPS Internet Shipping:View/Print Label
1.Print the label(s):Select the Print button on the print dialog box that appears.Note:If your browser does
not support this function select Print from the File menu to print the label.
2.Fold the printed label at the solid line below.Place the label in a UPS Shipping Pouch.If you do not
have a pouch,affix the folded label using clear plastic shipping tape over the entire label.
3.GETTING YOUR SHIPMENTTO UPS
Customers without a Daily Pickup
IQ Schedule a same day or future day Pic!~up to have a UPS driver pickup all of your Internet Shipping
packages.
•Hand the package to any UPS driver in your area.
•Take your package to any location of The UPS Store®,UPS Drop Box,UPS Customer Center,UPS
Alliances (Office Depot@ or Staples®)or Authorized Shipping Outlet nearyou.Items sent via UPS
Return ServicessM (including via Ground)are also accepted'at Drop Boxes.
•To find the location nearest you,please visit the 'Find Locations'Quicl<link at ups.com.
Customers with a Daily Pickup
II Your driver will pickup your shipment(s)as usuaL
FOLD HERE
https:llwww.ups.com/uis/create?ActionOriginPair=print_UISReceipt&POPUP_LEVEL...2/1112010
Rebekah Winkler
From:
Sent:
To:
Cc:
Subject:
Attachments:
Pat Noteboom
Monday,March 08,20103:27 PM
'[e-mail]'
AWAL-MGT;AWAL-Office
AWAL NELAP Certifications re:VOCs for Denison Mines
2009-2010-RCRA-UT-CERT-060109.pdf;Blank AWAL COC.xls;Denison Mines COC for
AWAL.xls
Joann,
American West Analytical Laboratories (AWAL)is NELAP certified to perform Volatile Organic Compounds (VOCs)by
8260C including Tetrahydrofuran (THF).THF was missing from the 8260C analyte list on our certification letter due to a
clerical error.Work is in progress to reissue our certification letters to include THF.We have been told that this should
be done by the end of this week.The new letter will indicate that our THF certification never lapsed.As soon as we
receive that updated letter of certification,we will send you a copy.A copy of our current NELAP certification letter is
attached.
As you requested,AWAL will include narratives and EDD's with all future data packs.To ensure you receive the
narrative,please request QC 3 on the Chain of Custody (COe)(upper right hand corner).A blank AWAL COC in Excel
format is attached.Also attached is a partially filled out AWAL COe.This can be largely set up in advance to ensure that
you always receive an AWAL QC 3 data pack with a narrative and THF with a reporting limit of 1Ilg/L.Please anticipate
a 10%surcharge for the QC 3 data pack which includes the narrative.
So far in 2010,AWAL has received two sets from Denison Mines,both during the first two weeks of February.Both sets
were labeled as '1st Quarter Ground Water 2010'.Work is in progress to revise the THF reporting limits (RL)on these
reports to 1Ilg/L.We are also planning on adding narratives and electronic data deliverables (EDDs).This will be done
with no further charge.Ifyou do not want or need these revisions,please let us know.Otherwise please anticipate
receiving them within aweek.
The AWAL Organic Laboratory Supervisor,Jenn Osborn,told me most of Denison Mine samples are clean and can be run
undiluted with a RL of 11lg/L on THF.However some of Denison Mine samples have complex matrices and require
dilutions.As you understand,on such samples we will not be able to achieve the RL of 11lg/L on THF.
We look forward to do all we can to support Denison Mines.We would appreciate the opportunity to assist you on your
Quality Assurance Project Plan (QAPP).We routinely provide this service at no charge.Let us know any way we can
assist you.
Respectfully,
Pat
Patrick Noteboom
Senior Chemist /Marketing Manager
American West Analytical Laboratories
Cell:[phone]
E-mail:Qa t@awilL:I.'L~,S;9!D.
Notice ofconfidentiality.This transmission is intended exclusively for the slaled addressee.If received accidentally,please notify the sender immediately.
Reproduction,distribution and dissemination of this information are strictly prohibited by anyone other than the intended.
AMERICAN
WEST
ANALYTICAL
LABORATORIES
Joann Tischler
Denison Mines
1050 17th Street,#950
Denver,CO 80265-
TEL:[phone]
FAX:[phone]
RE:Ist Quarter Ground Watcr 20 I0
American West Analytical Laboratories received 3 sample(s)on 2/5/2010 for the analyses
presented in the following report.
463 West 3600 South
Salt Lake City,UT
84115
Dear Joann Tischler:Lab Set!D:1002113
[phone]
Toll Free [phone]
Fax [phone]
All analyses were perfurmed in accordance to The NELAC Institute protocols unless
noted othelwise.American West Analytical Laboratories is certified by The NELAC
Institute in the following states:Utah,Colorado,Idaho,and Texas.Certification document
is available upon request.Ifyou have any questions or concerns regarding this report
please feel fi'ee to call.
email:[e-mail]
Kyle F.Gross
Laboratory Director
The abbreviation "Surr"found in organic reports indicates a surrogate compound that is
intentionally added by the laboratory to determine sample it\iection,extraction,and/or
purging efficiency.The "Reporting Limit"found on the report is equivalent to thc
practical quantitaionlimit (PQL).This is the minimum concentration that can be reported
by the method referenced and the sample matrix.The reporting limit must not be confused
with any regulatory limit.
Josc Rocha
QA Officer
This is a revision to a report originally issued 2/l 1120 IO.A case narrative,QC pages
and chromatograms have been added to the report.All pages have been updated for
pagination.
Laboratory Director or designee
F.OJ(Jilallysigncd by Kyle F.Gross
ON,cn=KyloF.Gross.ooAWAL,
ou"AWAL,ell\ail~kylc@awal·
labs.com,c.US
Date:2010.03.00 12:47:55 -01'00'
Kyle
Gross
Approved by:
Thank You,
RCIXlr!Date:3/9/20I0 Page 1or17
All ;malyscsapplicabl<;IOlheCWA.SI)WA,and ltCRAarc perf()l1n~d in accordance10 NI:LAC prolOC{lls.I'~nincnt samplil\~inl"onnmioll is locmcd on theattachedCOc.fhis rep[1I1 is providcd lorlhee'ehlsivclise 01'tile
addn:s,ce.I'ri\'ilc~esOf,llll,eqllent u,e Oflhc namc 01'this company Ill'any mcmberofilsslalr.or reproduction ofthisrcport in cOlllleclion "'ith Ille ,tdvcni,emcnt,promotion or,alc ofany pmdllCl orproccss,orin connection
Ililh Ihere·p\!blicaliol1 ofIhis ICPOIl for any puq}o,eother Ihan 101lhc,lddl'cSSCC will bc ~ranted onlyOil contact.This compnny ,teeepisno Icsponsibilili'C'"cpllorthedlleperl0I111anCe ofillspeelion ,md'ol'analysis illgood failh
and according to thc rilles ofthe tradeandofscience
AMERICAN
WEST
ANALYTICAL
LABORATORIES
Client:
Contact:
Project:
Laboratory Nnmber:
Volatile Case Narrative
Denison Mines
Joann Tischler
Ist Quarter Ground Water 20 I0
1001188
463 West 3600 South
Salt Lake City,UT
84115
Sample Receipt Information:
Date ofReceipt:
Date(s)ofCollection:
Sample Condition:
C-O-C Discrepancies:
Method:
Analysis:
2/5/2010
2/2 &2/3/20 I0
Intact
None
SW-8468260C/5030C
Tetrahydrofuran
[phone]
Toll Free [phone]
Fax (80 I)263-8687
email:awal@awal~labs.com
Kyle F.Gross
Laboratory Director
Jose Rocha
QA Officer
Gene,'al Set Comments:Tetrahydrofuran was not observed above reporting limits.
Holding Time and Preservation Requirements:All samples were received in appropriate
containers and properly preserved.The analysis and preparation of all samples were
performed within the method holding times following the methods stated on the analytical
reports.
Analytical QC Requirements:All instrument calibration and calibration check
requirements were met.All internal standard recoveries met method criterion.
Batch QC Requirements:MB,LCS,MS,MSD,RPD,and Sun'ogates:
Method Blanks (MBs):No target analyles were detected above reporting limits,
indicating that the procedure was free from contamination.
Laboratory Control Sample (LCSs):All LCS recoveries were within control
limits,indicating that the preparation and analysis were in controL
Matrix Spike I Matrix Spike Dnplieate (MS/MSD):All percent recoveries and
RPDs (Relative Percent Differences)were inside established limits,with the
tollowing exceptions:For sample t002135-00 IA,the MS and MSD percent
recoveries were outside of control limits on t,2-Diehloropropane and Methyl tert
butyl ether due to sample matrix interference and the RPD was high on
Naphthalene due to suspected sample non-homogeneity or matrix interference.
Surrogates:All surrogate recoveries were within established limits.
Corrective Aetiou:None required,
Report Dale:3/9120 I0 Page 2 of17
All nnnlysc~npplicnblc10 Ihe CWA.SDWA.and RCRA ~rc pcrlbnncdin ~c<:ord~ncc to NEI.AC protocols.I'cltinCl1t 5amplingintollnation is localcd on lhc~tI~dl<X!COe.Ihis repo!t is provided tor th~CXdllSivc liseorthe
~ddressce.l'rivilcg,cs orsubseqllentlise ortilename(,fthisc<"ll1panyor ~ny memberofits sl~ILor r(prodllClion ofIhis rq)l)rl ineonnectioll w;tl\tl,c ad\;Crli5emCnl,promotionor s',I1(orany prolluet Ofproc~ss.or in connection
withIhe rc:publicllion orthisrepor1 lor nny !lIJl]Jose othcrthan ror lheaddrC'Sseewill begl'ant~donlyOil contne!.This ~(lll1pany <lccepts no r~sponsibilitycxc~ptforthc duc pcrlormaneeof;n5pCClil\n nllt!ior ;II\Jlysis in g()nd fnith
andaecot'dmg to thc mil's orlhc Irade~nd or5cicrlC~.
ORGANIC ANALYTICAL REPORT
1\_Reissue ora previouslygenerated report.111/01'11/01;011 lias been added,updated,OJ"Fel'/sed.Ill/ormatioll hereill supersedes /1/(11 oftlie
prel'iollszl'isslled reports.
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City,UT
84115
(80 I)263-8686
Toll Free [phone]
Fax [phone]
email:[e-mail]1
Kylc F.Gross
Laboratory Director
Jose Rocha
QA Officer
Client:Denison Mines
Project:1st Quarter Ground Water 2010
Lab Sample ID:1002113-001A
Client Sample ID:MW-14
Collection Date:2/2/201010:55:00 AM
Received Date:2/5/20 I 0
Method Used:SW8260C
Analytical Resnlts
Units:~lg!L
Dilution Factor:
Compound
Tetrahydrofuran
Surr:1,2-Dichloroethanc-c14
Sur!":4-Bromot1uorobenzcne
Surr:Dibromofluoromethane
Surr:Toluene-d8
Contact:Joann Tischler
Analyzed:2/9/20106:38:00 PM
VOAs by GC/MS Method 8260C/5030C
CAS Reporting Analytical
Number Limit Resnlt Qual
109-99-9 1.0 <1.0
17060-07-0 77-144 102
460-00-4 80-123 94.7
1868-53-7 80-124 92.2
2037-26-5 80-125 96.8
Report Dale:3/9/20I0 Page 3 or 17
All analyses applicable to tile CWA,SDWA,:"1(\RCRA arc pertonned in 1lecord;\llce to NEI.I\Cprotocols.I'ettinents,lInplilig infonnation is located on tile alt;lchedCOc.IhisrqWl1 is provided f(,r Ihe e,~ehlsive lise ofIhe
addressee.Privileges ofsubs~'qllenluseofIhe name oflhis comp~tly orilny lllcmbcl-ofils stafr.orI'cprodtEClioll ofIhis repor!in conneclion wilh Ille advet'liscmclll.promotion or sale ofilny prodllel or proccss.orin cOllneclion
with Ihe rc"ptlblieation oftilis l'ePOl1 for any plllllOse olhcr thiln lot'the a<l(h'l."Ssecwill be gfal,tct!only on COl\tacl This c<llllpany accepts 110 responsibility except lor the dlle perfOl1llilliCC ofinspectiOll ;IndioI'analysis in good I1lith
and according to thcI1lksdthctrade alld ofscience.
ORGANIC ANALYTICAL REPORT
A _Reissue oraprel'iollslygel/era/edreport,f/!tormaliol/lias beell added,updated.o/'revised.Ili/orll/alioll here/II supersedes I{wf o/the
pre\'iolls~J;issuedreports.
AMERICAN
WEST
ANALYTICAL
LABORATORIBS
463 West 3600 South
Salt Lake City,UT
84115
[phone]
Toll Pree [phone]
Pax [phone]
email:[e-mail]
Kyle F.Gross
Laboratory Director
Jose Rocha
QA Officer
Client:Denison Mines
PI'ojeet:Ist Quarter Ground Water 2010
Lab Sample 10:1002113-002A
Client Sample 10:MW-26
Collection Date:2/2/2010 1:43:00 PM
Received Date:2/5/2010
Method Vsed:SW8260C
Analytical Resnlts
Vnits:~g/L
Dilution Factor:
Compound
Tctrahydrofuran
Surr:1,2-Dichloroethane-d4
Surr:4-Brol11otluorobenzcnc
SUIT:Dibromofluoromethane
Surr:Toluene-d8
Contact:Joann Tischler
Analyzed:2/9/20106:58:00 PM
VOAs by GC/MS Method 8260C/5030C
CAS Reporting Analytical
Number Limit Result Qual
109-99-9 1.0 <1.0
t7060-07-0 77-144 105
460-00-4 80-123 96.8
1868-53-7 80-124 93.8
2037-26-5 80-125 96.7
Report Date:319120 I0 Page 4 of17
:\11 analyses applitable to tile C\VA,SDWA,ami RCRA arc pCl'lol1ncd in accordan(;c 1O NELAC protocols.l'cnillcnl sampling inlonnmioll islocated on the <lunched cae.This rcpoll is pl'llvidcd 1'01'lile e_~chlsi\'e IISC ofll1c
;Iddrcssce,I'r'I¥'lkg,cs ofslIbscqllcm liseofthcnamc,Jftliis cOll1pmly orany mcmbcr ofilS ~lan',or rcprodllcliol\01'Ihis rcport in connectionwith the advcniscmCllt,promotionor s~1c of <lily produCI or proccs~,orincOl\ncclion
Willi thc I\>p\lblic,llion ofthis rcpoJ'l fc)r ,lily puq)(lSeothcrtll,lIl forthe addressee will be !lI,mled only on contact.This c(\mp~ny ,'CCqllS no responsibility e,xccpt for thc due p~rfonnance ofinspection ancForanalysis in !l<lod faith
and according to thc mil's orthc tf<ldc alld ofscicnce.
ORGANIC ANALYTICAL REPORT
"-Reissue q(a prel'iollsly generated report.!J~/(;"I11{/(iolll/(/s beell added,updaled.orrevised."!formatioll herein supersedes!fIG!ofIIIe
prel'iolls(jlissued reports.
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt [,ake City,UT
84115
(80 I)263,8686
Toll Pree (888)263,8686
Pax (80 I)263,8687
email;[e-mail]
Kyle F.Gross
Laboratory DiI'cctor
Jose Rocha
QA Ofticer
Client:Den ison Mines
Project:1st Quarter Ground Water 2010
Lab Sample!D:1002113,003A
Client Sample 10:MW,25
Collection nate:2/3/201012:53:00 PM
Received nate:2/5/20 I 0
Method Used:SW8260C
Analytical Results
Units:~g1L
Dilution Factor:
Compound
Tetl'ahydroturan
SUIT:1,2-Dichloroethane-d4
Surr:4-Bromotluorobenzene
Surr:Dibromofluoromethane
SUIT:Toluene-cl8
Contact:Joann Tischler
Analyzed:2/9/20107:19:00 PM
VOAs by GC/MS Method 8260C/5030C
CAS Reporting Analytical
Number Limit Resnlt Qnal
109,99,9 1.0 <1.0
17060,07,0 77-144 103
460,00-4 80-123 96.6
1868,53,7 80,124 91.8
2037,26,5 80,125 96.0
Report Dale:3/9/20 I0 Page 5 of 17
1\1l analysesapplie~lb\cto theCWA,SDWA.and RCRi\arc pedonne(jin ilccordance 10 NELr\C ]l1(11O<.:01s,I'eninent samplinginlOllHaliou is lo(:ated l'll lhe,mitchedCOc.Tilis rcp{nt is provi(kd for Iheexcilisive lise ofthe
addressee,Privileges orsubs\'XlllCIH lise Mlhe name orIlliseOIUpanyor any member ofits stall orreprodllctioll ofIIIis report in connection wilh thc advcrliscmCUl,promotion or sakofany prodllcl or proccss,orill connl:etiOll
Wilh the re-publication oflhis repon for any ptllj)oseolher limn lor the addR'Ssel:wilt be granlcd onl>'on coniact.Thiscompany accepls no resj)('ll1sibility {,'.xeepl ror the dlle pcrfol1l1anccofinspectioll and'o,'anal)'"is in good faith
and aewl'ding lO the rule'S ofthe trade aml orscience.
CLIENT:Denison Mines
Lab Set 10:1002113
Project:1st Quarter Ground Water 20]0
AMERICAN WEST ANALYTICAL LASaRATORIES
463 West 3600 South
Salt Lake City.UT 84115
(litHI2(,3-S(,~(,.Tollfre"(XliII)2(>3-li(,X(,_F:t.~(lill])2(,3-l((,l\7
c-m~11 """I',{.""ol-bo,Wlll.\lcb \\\\\\a""I-labscom
QC SUMMARY REPORT
Dept:MSVOA
SampType:LCS
Kyle F.Gross
Laboratory Director
Jose Rocha
QA Oftieer
Amount Original Analysis
Sample ID Analytc Units i\'lcthod Result Spiked Amount %REC Limits '%RPD Rj)0 Limit Qualilicrs Date
Ll'S VOl'020910A 1,I,I-Trichloroethane ).lg/L SW8260l'25 20.00 0 123 499-140 2/9/20I0
Ll'S VOC 02091 OA l.l-Dichlorocthene Ilg/L SW8260l',-20.00 0 114 52-171 2/9/2010-,
LCS VOC 020910A 1,2-Dichlorobenzene IlgiL SW8260l'22 20.00 0 109 67-135 2/912010
LCS VOC 020910A 1,2-Dichloroethane IlgfL SW8260C ,-20.00 0 113 60-137 219120 I0-,
Ll'S VOl'02091 OA Surr:1.2·Dichloroethane~d4 %RI::C SW8260C 55 50.00 109 69-132 2/9120 J0
LCS VOl'02091OA 1,2-Dichloropropane Ilg/L SW8260C 27 2000 0 133 59-135 219120 I0
l.CS VOC 02091OA Sun:4-Broll1011uorobenzene %REC SWS260l'47 50.00 93.8 85-1}5 2/9/20I0
LCS VOC 02091OA Benzene /lgiL SW8260C 24 20.00 0 119 62-127 2/9120 I0
LCS VOC 02091OA Chlorobenzenc /lgiL SW8260C 24 2000 0 119 63-140 2/9/20}0
LCS VOC 02091OA Chloroform ,ug/L SW8260C ,-10.00 0 117 67~132 2/9/2010-,
LCS VOl'020910A Sun:Dibromotluoromethanc %REC SW8260C 47 50.00 94.0 80-120 2/9120 I0
LCS VOC 020910A Ethylbenzene jlglL SW8260C 21 20.00 0 106 55-133 2/912010
LCS VOC 02091OA Isopropylbenzene ~glL SW8160C 21 20.00 0 106 60-147 2/9/20I0
LCS VOC 020910A Methyl teft-butyl ether ,ugiL SW8260C 7.9 20.00 0 39.6 37-189 2/9/20I0
l.CS VOC 020910A Methylene chloride ,ug/L SW8260C 24 20.00 0 118 31-124 2/9/20I0
Ll'S VOC 0209 lOA Naphthalene /lg/L SW8260C 15 10.00 0 no 41-131 2/9/2010
LCS VOC 02091 OA Toluene ~tg/L SW8260l'25 20.00 0 126 67~126 2/9/20I0
LCS VOC 020910A Surr:Tolucne-d8 o/(/REC SW8260C 47 50.00 94.2 81-120 2/912010
LCS VOC 020910A Trichloroethenc ,uglL S\V8260C 0-20.00 0 114 54-152 2/9120 I0_0
LCS VOC 02091OA Xylenes,Total Jlg!L SW8260l'64 60.00 0 107 52-130 2/9/20 I0
LCS VOl'020910A l,1,I-Trichloroethane ~glL SW8260C 25 20.00 0 123 49.9-140 21912010
l.CS VOC 020910A },1~Dichlorocthcne /lg!L S\V8260C 0-20.00 0 114 52-17!2/9/20I0_0
LCS VOC 02091OA 1.2-Dichlorobenzene .ug!L SW8260C 22 2000 0 109 67-135 2/9/20!0
LCS VOC 02091OA 1.2-Dichloroethane ,ug/L SW8260l'23 20.00 0 113 60~137 2/9/2010
R<:port DUIi:'3/9/2010 Pag<:6of17
Allon:ol~,o,oppltc"bk 10lheCW."'.50W,\."no RCRA "'~perfom,ou ,n ,,,,oordon,,10"EL1\Cprolo,ols P~t1,non,,"mphn~rnfo[]"OI'(tllI'lo~"t~don th,"',"ohod eoe TI","'pOrl "pro,,dodfar !ho ~_,du';l\c uscof!he"dJress,,",Pm ,kg~<of<"b,~q"~alu>~of!hcnome of11",compon,or ~ll~l\\"mborof,"s\~lr.(I'r"i'md"~HCn
o[lhlS '~po"in wnnc,IIon",tb 'b~"d'cn,,"n,oJll.p<omotlOn or<:llo of:on'pmJ"ol0'prooe«.or '"conneotwn ""hthe ""p"bl''''HO''of'Iu;reporlf(l':on'1"''l'0;;0 Ollle',,h""for th~"JurcSlco "iii bo ~':llltcu onl.'on oom,,"\11",""I'P'''';""'"1'''no rc;;pom,bl1L!'~~ocl'\[or lbe d,,~p"rfonn""""or""p,-';l",n""u....o,"''''I.'<os 1n ~ood
f,,"h and ","",u"'g\0 tho r"lc,of,],"!rodc "nuof'0"'"''
AMERICAN WEST ANALYTICAL LABORATORIES
463 West 3600 South
Salt Lake Cil)'.UT 84115
{~(lil2(,3·~(,~(..Toll Fr~~(g~~)2(,3-~(,~(,.f:1X (~('1)2(,3-~(,~7
e-In:lil :"':lhl,~\\~I_I"bs com.\\~b ,,""o,,:>]-lab,com
QC SUMMARY REPORT
Kyle F.Gross
Laboratory Director
Jose Rocha
QA Oflicer
CLIENT:Denison Mines
Lab Set!D:1002113
Project:1st Quarter Ground Water 2010
Amount Original
Sample 1ll Analyte Lnits ,\-lethod Result Spil..ed Amount
I.CS VOC 02091 OA Stiff:1.2-Dichloroethane-d4 %REC 5W8260C 55 50.00
I.CS VOC 02091 OA 1,2-Dichloropropane J-lgiL 5W8260C 27 20.00 0
LC5 VOC 020910A Surr:4-Bromofluorobenzene %REC SW8260C 47 50.00
I.CS VOC 020910A Benzene ,ug/L SW8260C 24 20.00 0
LCS VOC 02091 OA Chlorobenzene Ilg/L 5W8260C 24 20.00 0
LC5 VOC 020910A Chloroform 1l1;/L 5W8260C ,.20.00 0.0
LC5 VOC 020910A Surr:Dibromol1uoromethane %REC SW8260C 47 5000
I.CS VOC 02091 OA Ethylbenzcnc Ilg/L SW8260C 21 2000 0
LC5 VOC 020910A Isopropyl benzene IlgiL 5W8260C 21 20.00 0
I.CS VOC 02091 OA Mcthyl tert-butyl cther IlgiL SW8260C 7.9 20.00 0
LCS VOC 02091 OA Methylenc chloridc Ilg/L 5W8260C 24 20.00 0
LC5 VOC 02091 OA Naphthalene f-lg/L 5W8260C 15 20.00 0
I.CS VOC 020910A Toluenc IlgiL SW8260C 25 2000 0
LCS VOC 02091 OA Surr:Toluene-dB %REC SW8260C 47 50.00
LCS VOC 020910A Trichloroethene llg/L SW8260C ,.20.00 0.0
I.CS VOC 02091 OA Xylencs,Total Ilg/L SW8260C 64 60.00 0
Dept:MSVOA
SampType:LCS
%..REC Limits
109 69-132
133 59-]35
93.8 85-115
1]9 62~127
119 63-140
ll7 67-132
94.0 80-120
106 55~133
106 60-147
39.6 37-189
118 31-J24
770 41-131
126 67-126
94.2 81·120
114 54-152
107 52-130
Analysis
"/"RPD RPD Limit Qualifiers Date
2/912010
2/9/20 I0
2/9/2010
2/912010
2/9/20I0
2/9/2010
2/9/20 I0
2/9/20Ia
2/912010
2/9/20I0
219/20 I0
2/9!20]0
219120 Ia
2/9/2010
2/9/2010
2/9/20 I0
R~pon Dale:3/9/2010 Page 7 of 17
.\11 ,,":11\»,"pphoooic totho CW.-'..SOW.-'.."nd RCRA arc p.;'f"""Cd lit"ocorJan"c 10NELAC I'rotvo"l,P"rt,,,,,m,,,,,,pion:,;mform"ilOll 's10.:~,~J onth""n""l,~d cae This '''port IS pro\,Jc'<l [0'\henc!\lSl'C,"~o[lh~"dd;e~"o Pn"legc$ofs"bs~'I"~musc of\h~n"m~ofllns'0"'1'''1\.'0'"I\~m~mborof,IS ""ff.or '~l'fOJ"CIlGI\
oft;'"r"ponIn eonn'''lmn",111 Ih~:>J'~f1"~",,,nL )'rO"'01001\vr <:01"vf"J\.'prv""'"or I'ro;;~ss.or in ~"n~eC"OJ\"liltlh~,~·pubi:""llon"fliltsr~I'01lfor :lJ\')"'']'0'"Nh",II,""for1"0 aJd,~"e~"III be:,;ran,,,J onh'On ,om"o\ThiS eo,"I"",~c"~I'I'1\0 r"'1'01\,;0,1Il,~.,"~pt for lheJ"~I'orforman,~ofIn>p~~tlO~and/or :lJd~m '"~ood
f,uh and ~"""rJm~to 'h;;'ubof<h~lrade"nO of"'lOn"
AMERICAN WEST ANALYTICAL LABORATORIES
463 West 3600 South
Salt Lake City.UT 84115
(~(ll)2(,3·X(,\\(,.Toll Fr""(\\XNj 21,->-:\(,:\(,.f,,-~(X(t])2(,3_1I(,Xi
,,-m~ll "-""i-I(:'"~I-bbsWill."eO \\ \\II ~\\~I-l;tb"com
QC SUMMARY REPORT
Kyle F.Gross
Laboratory Director
Jose Rocha
QA Officer
CLIENT:Denison Mines
Lab Set 10:1002113
Project:1st Quarter Ground Water 2010
Sample ID Analytc Cnits Method Result
MB voe 020910,\Sun:1,2w Dichlorocthane-d4 %REC SW8260C 50
MB voe 020910,\Surr:4-Bromofluofobenzene %REC SW8260e 47
MB voe 020910,\Surr:Dibromolluoromethanc %REC SW8260e 46
MB voe 020910,\Tetrahydrofllran ,ug/L SW8260e <2.0
MB voe 010910,\Surr:Toluene-d8 %REC SW8160e 48
Dept:MSVOA
SampType:MBLK
Amount Original Analysis
Spiked Amount %REC Limits %Rl'D RPD Limit Qualifiers Date
50.00 99.9 69-132 2/9/2010
50.00 95.0 g5-llS 2/9/20 I(}
50.00 92.8 80-120 2/9/20I0
2/9/2010
5000 96.8 81-120 2/9/2010
Report Dale:3:9/2010 Page /;of17
,\11 ",,"I.>'-0'"ppit"obkto1110 CWA SDW..>.."nd ROtA '"'''pe,formod ,n .~~Nd,,"«to"ELACprolOcols P~rlm"nI,:amphng,nform~lwn "IO""l"d00 Iho Oll"oi,,'d CQe Tin,f'r<'rl"pro,,J"d fo'lilo ~.~dLl,,,e "~¢Oflh~,dd,c<soo I'm,k~esof,"b'~'l"Onlu'"o[lilcnom"ofll'"~0",1''"':of "n'm~mbo,of:l>slalr N r~proJ"ol\On
~rlh"'01''''1m,;~nn""Hon "'Ih lh"ad,,,m,,,,,,,,,,!.prOl1lOl;Dn or ~"k ~r "0,prod""l 0'p,o,,~ss.or m<:':H1n","uo"nit II",r~'llL,bh"al\On "flh"r~p"r1J",on.'!,urpo,~oth"lll,n [or Ih,"dJ,""""",IIbe:;r:ml"donl,on "onl"~1 TI11s "on'!""'.'",""pIS no'"'r<'mtbd,t.'~_~"CPIfor lll~d(l~p~,--[onnono~of""I'''''lwn "",For",,"I,'"on g<>od
f.'tlh ,""J """Old",,,,1<>U",ul.;,ol"hcIr:,d,"ndof",,",,""
CLIENT:Denison Mines
Lab Set 10:1002113
Project:1st Quarter Ground Water 2010
AMERICAN WEST ANALYTICAL LABORATORIES
463 West 3600 South
Salt Lake City.UT 84115
(SOl)2(\.\_S(,S(•.Toil Fr~~(XXX)l(,.'·x(.l\(,.fax(WI)21,'\-x(.x7
~-malJ 0";,1-/1,,,,,,,1-1,,05 COin.\\~b \\"\\"""I_bo,com
QC SUMMARY REPORT
Dept:MSVOA
SampType:MS
Kyle F.Gross
Laboratory Director
Jose Rocha
QA Omeer
Amount Original Anal)'sis
Sample In Analytc Loils :\lcthod Result Spiked Amount %REC Limits %,RPD RPD Limit Qualifiers Date
1002135-00lAMS 1.1.I-TrichloroellHll1c pg/L SW8260C 24 20.00 0 120 67-147 2/9/2010
IOO2135-001AMS l,l-Dichlorocthene pg/L SW8260C ,-20.00 0 113 62-152 219120 I0_0
1002135-001AMS 1,2-Dichlorobenzcnc ,uglL SW8260C 22 20.00 0 108 70A 130 2/9/20I0
1002135-001AMS 1.2-Dichloroethane )lg/L SW8260C ,-20.00 0 113 39-162 2/9/20 I0.0
1002135-001AMS Surr:1.2-Dichloroethanc-d4 %REC SW8260C 55 50.00 110 77-144 2/9/20 I0
IOO2135-00IANIS 1,2-Dichloropropane !1g1L SW8260C 27 20.00 0 134 70-130 2/912010
1002l35-001AMS Surr:4-Bromofluorobenzene %REC SW8260C 47 50.00 93.3 80-123 2/9/2010
1002135-00IAJ\lIS Benzene )lglL SW8260C 26 2000 0 128 66-145 2/9/20 I0
1002135-001AMS Ch1orobenzene )lg./L SW8260C ,-2000 0 116 77-123 2/9120 I0.0
1002135-001AMS Chloroform jlglL SW8260C 22 20.00 0 112 50-146 2/912010
1002135-00IiI.MS Sun:Dibromofluoromethane %REC SW8260C 48 50.00 95.4 80-124 2/9/20 I0
1002135-0011\oVlS Ethylbenzene !1g/L SW8260C 20 20.00 0 102 70-130 2/912010
1002135-0011\oVlS 1sopropylbcnzene )lg/L SW8260C 20 20.00 0 102 70-130 2/9/2010
1002135-001AMS Methyl tert-butyl ether ~!g/L SW8260C 6.8 20.00 0 33.8 48-142 2/9/20 I0
1002135-00lAMS Methylene chloride ~lglL SW8260C 0-20.00 0 116 65-135 2/9120 I0.,
1002 I35-00lAMS Naphthalene )lg/L SW8260C 14 20.00 0 68.0 44-129 2/9/20 I0
1002135-001AMS Toluene )lgt'L SW8260C 24 20.00 0 121 18-192 2/9/20 I0
1002135-00lAMS Sun:Toluene-d8 %REC SW8260C 47 50.00 93.3 SO-125 2/9/2010
1002135-001AMS Trichloroethcne .uglL SW8260C 22 20.00 0 III 61-153 2/9120 I0
1002135·001AMS Xylenes,Total .uglL SW8260C 61 60.00 0 102 42-167 2/9/2010
I _.lImn:,"~pike I"i!COl'l!I}'il1dlcall:s maTrix inrel:!i:rt:t/ce The IIIdhodis In cOlllrol as iJldic{/{I.'db);{he LCS.
Repon Oat.:::3/9:2010 Pag,e 9 of]7
,.\11 3n"I.,s~,~I'ph,~bk I<>the (\VA,SD\\'.-\."nd RCR.'I.OIe p",[or"'~d ,n";;~~,d"ncc lO ~ELAC 1"0(0':01$.Pertment ,,,mphn~lfifvrl1l~\lQn IS lo<alod on [he~,,,,.:hed coe TIllS 'eport'l pro\lded [0'lh~o.,d"sJlc"seofloe ,ddre,,_'<'PmtI~;;~,ofsub,.:q"e"lo,eoflh~'''''''eoftl"$,;o"'P'>n.'0'"".'mombe,of,"""ITorreprouu<I'Qn
of,h»"port in ~onnoellon "jthIh~<l<1\~rm~lll~lll.p,omol'on<>r ,okof,n)proU",1 0'pro""",or>n,;on"".:I,on ",lhlh"re-p"blle,ulOn ofIIuswpotlfor'>n.'purposc oth",,h"nfo,the "dd,e,>o~",II b~~'''''I¢donl.'on,;onl;>;l 1h'l CQl1lp.""~e.;cpts no ,~sJlon'jb,hl.'~.\C¢plforlh~du,;p~,foml,"~c~ofIn'l'e.:<jon ,,,,d'-or """h$!$m~Qod
f,,<1h "ml "',,orJ,"~to Ihe nob "flh~w,u¢~nd or>c"ne~
AMERICAN WEST ANALYTlCAL LABORATORIES Kyle F.Gross
463 West 3600 South Laborator.y Director
Salt Lake City.LIT 84115 Jose Rocha
(~IJ 111(,3-~(,~(,.Toll Fr~c(l>l\l\)2(,3-1\(,1\(.,F"-,,PW1)2(,;-1\(,1\;QA Officerc-nwd "":>I"',a",,I.bb$(om.\\cb "\\"a"al_l:tbs conl
QC SUMMARY REPORT
CLIENT:Denison Mines
LabSetlD:1002113 Dept:MSVOA
Project:Ist Quarter Ground Water 20 I0 SampType:MSD
Amount Original Analysis
Sample iO Anal)'tc Units .\'lcthod Result Spiked Amount %REC Limits o/..,Rl)D RPD Limit Qualifiers Date
1002135-001AMSD I,I.I-Trichloroethane J.lg/L SW8260C 24 20.00 0 120 67-147 0.0835 25 2/9/2010
1002135-0011\MSD 1,\-Dichloroethene )lgiL SW8260C 22 20.00 0 108 62-152 5.16 25 2/9120]0
1002135-001AMSD 1)-Dichlorobenzene I-lg/L SW8260C 21 20.00 0 107 70-130 1.58 25 2/9/20I0
1002135-001AMSD 1.2-Dichloroclhane ugiL SW8260C ,-20.00 0 113 39-162 0.3 10 25 2/9/2010-,
1002135-00IAMSD Surr:J.2-Dichloroethane-d4 %REC SW8260C 54 5000 108 77-144 2/9/2010
IOO2135-00IAMSD l,2-Dichloropropane ~lglL SW8260C 26 20.00 0 132 70-130 1.21 25 2/9120I0
IOO2135-00IAMSD Surr:4-Bromolluorobenzene %REC SW8260C 48 50.00 95.4 80-123 2/9/20 I0
1002135-00IAMSD Benzene Mg/L SW8260C 25 2000 0 125 66-145 ?--25 2/9/2010_.).J
1002135-001AMSD ChIorobenzene ugiL SW8260C 22 2000 0 112 77-123 3.03 25 2/9/20 to
1002135-00lAMS})Chloroform ,Ug/L SWS260C 22 20.00 0 110 50-146 144 25 1/9/20 I0
1002135-001AMSD Surr:Dibromofluoromdhane %REC SW8260C 48 50.00 95.3 80-124 119/2010
1002135-00IAMSD Ethylbenzcne }1gJL SW8260C 20 20.00 0 98.3 70-130 3.69 25 2/9/2010
iOO2135-00IAMSD Isopropyl benzene JlglL SWS260C 20 20.00 0 99.4 70-130 2.83 15 2/9/2010
1002135-00IAlViSD Methyl tert-butyl dher ,Ug/L SWS260C 7.1 20.00 0 35.6 48-142 5.05 25 2/9120 I0
1002135-001AlVISD Methylene chloride ~giL SW8260C ?-2000 0 115 65-135 0.606 25 1/9/2010d
1002135-00IAMSD Naphthalene !lg/L SW8260C 19 20.00 0 93.6 44-119 31.7 25 @ 119110 I0
1002135-00IAlViSD Toluene !lg/L SW8260C 24 20.00 0 liS 18-191 1_71 25 2/9/20 I0
1002135-001AMSD Surr:Toluene-d8 %REC SW8260C 47 50.00 94.1 80-125 2/9/20 I0
1002135-00IAMSD Trichloroethenc ,UglL SW8260C 21 20.00 0 106 61-153 4.37 25 2/9/2010
1002135-00IAMSD Xylencs,Total ~giL SIV8260C 58 6000 0 97.4 42-167 4.60 25 2/9/20 I0
@-High RPD due to suspected sample lIon-holllogenei(v ornlti/ri..inh>lji:rence.
I _Matrix spikereCoWI)'mdicwes lIIa1rix /lIIelferenci!.The mel/lOdis in cOlJlrol as ;ndicaredby Ihe LCS.
Report Date:319110 I0 Page 10 or17
All 'lIl"I"c'"ppltoabl~to tb~C\I-'.-\.SD\VA.'md RCRA "r~p,rro,m~d on "o"ofd:m,,~to ,-":ELAC )'low.:01<l'onmom".,mpl:n~InrOm''''lOn lS 100Jledon ,h~ona.:h"d coe TI",'~ponI,pro,,d~d for lh~C.,c1U51\~lIS~ortb~adclr~s,~~Pmd,,1'''orSLlb\cqLloOl us~oflh~n,nn~ortl>;,~omp"n.,0',"~,.11\~l\lborof11>,1;,11".Of "'1"Odu~I'()n
ofII",r~po";n"onn""lwn "ilh Ih~:xl'~""~'""nl.promol;onOfsale-ofan'prod",:t 0'p,o"CSS.Of It\"onn"~l]on",tilII"r~'pubho"llonof'h""'pon10',11\,pl"1l0.'O mb~llh,1t\for 'hoodd,~,,"~\I'llk gr",,'cdonl.'on coma-o'11llS"<>n'P:"";LO,,~pt'no""pon31bdLt,"~C~pl for Ihcd"o p~rr,,,mJn,,cor,"'p~o'",n""diol",,:d,51SIn good
f,,,,h ond ~.;c",d,"~to 'h"'ule-,oflh~]r=>J~~ndof,,,,on~~
Quantitation Report (QT Reviewed)
Quant Results File:FULLS 23.RES
Data File C:\MSDCHEM\1\DATA\FEB10-D\09FEB10\EIOLl131.D Vial:
Aeq On 9 Feb 2010 6:38 pm Operator:
Sample 1002113-001A Inst
Mise SAMP 5.oML lOin Multiplr:
MS Integration Params:rteint.p
Quant Time:Feb 10 12:04 2010
21
5973-0
1.00
Method
Title
Last Update
C,\MSDCHEM\l\METHODS\FULLS 23.M (RTE Integrator)
VOA Calibration
Wed Feb 03 10:23:31 2010
1900000
1800000
1700000
1600000
1500000
1400000
1300000
1200000
1100000
1000000
900000 •"i ~i~.,j,.j800000,~0 !."is0".700000 ~0e 0"~~
"600000 0e~
500000
0
400000 •i~
300000 ~.
~
200000
100000
3.00 3.50 4.004,_~Q 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00
EIOLl131.D FULLS 23.M Wed Feb 10 12:30:36 2010 5973D Report Date:3/9120 \0 pl?i~1140l'\7
Quantitation Report (QT Reviewed)
Data File C:\MSDCHEM\1\DATA\FEB10-D\09FEB10\EIIL1132.D vial:22
Aeq On 9 Feb 2010 6:58 pm Operator:
Sample 1002113-002A Inst 5973-D
Mise SAMP 5.0ML 10F3 Multiplr:1.00
MS Integration Params:rteint.p
Quant Time:Feb 10 12:14 2010 Quant Results File:FULLS 23.RES
Method
Title
Last Update
C:\MSDCHEM\1\METHODS\FULLS~23.M(RTE Integrator)
VOA Calibration
Wed Feb 03 10:23:31 2010
4400000
4200000
4000000
3800000
3600000
3400000
3200000
3000000
2800000
2600000
2400000
2200000
2000000
1800000
1600000
1400000
1200000 ~j
1000000 §
is
D~
800000 ~
600000
400000
200000
2.00 2.50 3.00 ~.5.o 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00 11.50
E11L1132.D FULLS 23.M Wed Feb 10 12:30:53 2010 5973D Rcport Dalc;3/9/20 I0 P~e 1~or 17
Quantitation Report (QT Reviewed)
5973-D
1.00
Quant Results File:FULLS 23.RES
Data File C:\MSDCHEM\1\DATA\FEBI0-D\09FEB10\EI2LI133.D Vial:23
Acq On 9 Feb 2010 7:19 pm Operator:
Sample 1002113-003A lnst
Mise SAMP 5.0ML 10F3 Multiplr:
MS Integration Params:rteint.p
Quant Time:Feb 10 12:17 2010
Method
Title
Last Update
C,\MSDCHEM\l\METHODS\FULLS 23.M (RTE Integrator)
VOA Calibration
Wed Feb 03 10:23:31 2010
1250000
1200000
1150000
1100000
1050000
1000000
950000
900000
850000
800000
750000
700000
650000
600000
550000
500000
450000
400000
350000
300000
250000
200000
150000
100000
50000
0g ~~8 ~g ~~~.~6 ~~
~
0v
.i ",.0~I,
~~
a~
3.50 4.00 4.~5.00 5.~6.00 6.50
E12L1133.D FULLS 23.M Wed Feb 10 12:31:21 2010 59730
Quantitation Report (QT Reviewed)
5973-D
1.00
Quant Results File:FULLS 23.RES
Data File C:\MSDCHEM\1\DATA\FEB10-0\09FEB10\D94LCS20 .0 Vial:6
Aeq On 9 Feb 2010 1:34 pm Operator:
Sample LCS VOC 020910A Inst
Mise LCS SEE COVERSHEET FOR ID AND AMOUNT Multiplr:
MS Integration Params:rteint.p
Quant Time:Feb 9 13:49 2010
Method
Title
Last Update
C:\MSDCHEM\l\METHODS\FULLS 23.M (RTE Integrator)
VOA Calibration
Tue Feb 09 13:47:10 2010
1550000
1500000
1450000
1400000
1350000
1300000
1250000
1200000
1150000
1100000
1050000
1000000
950000
900000
850000
800000
750000
700000
650000
600000
550000
500000
450000
400000
350000 j"300000 ~.
~iii250000E*~.~200000 O'g ,Q ~£~
150000 ~-,
100000 tA~;J50000
0
2.00 2.50 3.00
D94LCS20.D FULLS 23.M Tue Feb 09 13:52:14 2010 59730 Report Dale:31912010 P~e I4],of 17
Quantitation Report (QT Reviewed)
5973-D
1.00
Quant Results File:FULLS 23.RES
Data File C:\MSDCHEM\1\DATA\FEB10-D\09FEB10\D93LMBLK.D vial:5
Aeq On 9 Feb 2010 1:15 pm Operator:
Sample MB VOC 020910A Inst
Mise MBLK 5.0ML Multiplr:
MS Integration Params:rteint.p
Quant Time:Feb 9 15:31 2010
Method
Title
Last Update
Rr:;.~p.9n_?r:;via~6un-danceI850000,
i
800000
100000
C,\MSOCHEM\1\METHOOS\FULLS_23.M (RTE Integrator)
VOA Calibration
Tue Feb 09 13:47:10 2010
r~t~t?J9~JtR~~~i?n
i 5000:,L1\~=;=;=r~'T'i'O"'rr_fiT~"T'f99'FFf'J.,
n-ime-->2.00 2.50 3.00 3.50 4.00 4.50 .5,0.9.5.50 6.09
L---iii i
6.50 7.00
iii
7.50
i I
8.00
iii iii'i i
8.50 9.00 9.50 Iii iii ,
10.00 10.50 11.00 11.50 j
D93LMBLK.D FULLS 23.M Tue Feb 09 15:31:24 2010 59730 Report Dale:3/9120 I0 P~e15±ol'17
Quantitation Report (Not Reviewed)
5973-D
1.00
Quant Results File:FULLS 23.RES
Data File C:\M8DCHEM\1\OATA\FEB10-0\09FEB10\E0081351.D vial:12
Aeq On 9 Feb 2010 3 :45 pm Operator:
Sample 1002135-001AMS Inst
Mise MS 5.OML 10F3 Multiplr:
M8 Integration Params:rteint.p
Quant Time:Feb 9 15:57 2010
Method
Title
Last Update
1550000
1500000
1450000
1400000
1350000
1300000
1250000
1200000
C:\MSDCHEM\1\METHOD8\FULLS 23.M (RTE Integrator)
VOA Calibration
Tue Feb 09 13:47:10 2010
Tue Feb 09 17:33:32 2010
1150000
1100000
1050000
1000000
950000
900000
850000
800000
750000
700000
650000
600000
550000
500000
450000
400000
350000
300000
250000
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E0081351.D FULLS 23.M
4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50
59730
iii i9.00 9.50 10.00 10.50 11.00 11.50
RCIX)l"[Dale:3/9/20 10 P~e 16l.0f 17
Quantitation Report (Not Reviewed)
5973-D
1.00
Quant Results File:FULLS 23.RES
Data File C:\MSDCHEM\1\DATA\FEB10-D\09FEB10\EOID1351.D vial:13
AeqOn 9 Feb 2010 4:04pm Operator:
Sample 1002135~001AMSD rnst
Mise MSD 5.OML 10F3 MultiplY:
MS Integration Params:rteint.p
Quant Time:Feb 9 16:16 2010
Method
Title
Last Update
C:\MSOCHEM\l\METHODS\FULLS 23.M (RTE Integrator)
VOA Calibration
Tue Feb 09 13:47:10 2010
EOID1351.0 FULLS 23.M 59730TueFeb0917:34:02 2010
2.502.00
1500000
1450000
1400000
1350000
1300000
1250000
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750000
700000
650000
600000
550000
500000
450000
400000
350000
300000 0
~
g
250000 ~.~
200000 \j .~,lil§~~~
150000 t5 >.~"s 8,co
100000 1em
50000
----------------------_._---
American West Analytical Laboratories ~~Y'§Bl
1002113
Standard
09-Mar-l0
Work Order:
WOType:
oc~
Joann Tischler
WORK ORDER Summary
Client 10:DENI00 IContact:
Project10:IPM:ICOMMENTS:
,Project:1st Quarter Grouud Water 2010 QC Level:LEVEL III No Hard Copies_QC 3 and EDD's added 3/9/10;I
ChkList Completed On:Completed By
;ChkList Reviewed On:Reviewed By:I IIwoReviewedOn:2/512010 Reviewed By:9
Sample ID
l002113-001A
I002ID-002A
lO02113-003A
ClientSample ID
MW-14
MW-26
MW-25
Date Collected Date Received
2(212010 10:55:00 A..M 21512010 9:58:23 M1
212/20101:43:00 PM
21312010 12:53:00 PM
Date Due
2/1912010
2119/2010
2119/2010
Matrix
Aqueolls
Test Code
8260-W
8260-W
8260-W
Hid MS SEL Sub Storage
0 C l',,'j o VOC
0 0 ~o voc
0 0 QJ 0 voc
-----~--_."-~...__.-.._-----~---,.-----------------
American West Analytical Laboratories
1002113
Standard
05-Feb-1O
Work Order:
WOType:
COMMENTS:!
Ryan Palmer
PM:IQC Level:LEVELl
Completed By
Reviewed By:
Reviewed By:\
WORK ORDER Summary
Contact:
S~mple ID Client Sample In D~lte Collected
1002113·001A MW-14 21212010 10:55:00 Alvl
!002Il3-002A MW-26 2/2/2010 1:43:00 PM
!OO2113-003A MW-25 2131201012:53:00 PM
DateReceived
2/5/20109:58:23 AM
Date Due
21J9/2010
2/19/2010
2119/2010
Matrix Test Code HId MS SEL Sub Storage
Aqueous 8260-W 0 0 0 0 VOC/PMOIST
S2GO-W 0 0 0 0 VOC/PMOIST
82GO-W 0 0 0 0 VOCIPMOIST
OENISOJ)~
MINES
CHAIN OF CUSTODY
I Sheet 1 of 1
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
[e-mail]
[e-mail]
Chain of Custody/Sampling Analysis Request
Project
1st Quarter Ground
Water 2010
Samplers Name
Tanner Holliday
Samplers Signature
Date Time
Sample 10 Collected Collected Laboratory Analysis Reauested
MW-14 2/2/2010 1055 THF
MW-26 2/2/2010 1343 THF
MW-25 2/3/2010 1253 THF
QC 3 and an EDD added 3/8/10 per Joann Tischler (see attached email)-RW 1
Please nofify Ryan Palmer of Reciept tempature on these samples Immediatelv!Thank you.
Relinquished :(Signature)
,~
DatelTime Received·}i:(Signature)
2/4/2010
1400
DatelTime
D elTime
f!,13&
Lab Set lD:(002.113
,Samoles Were:cae Tane Was:Container Type:No.Ree.
I 121 Shipped By:\A ""S Present on Outer Paclmge UAWAL Supplied Plastic
I 0 Hand Delivered c(Yes ONo ON/A o AW~Supplied Clear Glass
.0 Ambient Unbroken all Outer package o AWAL SuPlllied Amber Glass
.BrChilied riYes DNa DN/A .D AWAL SU]lPli~OC/TOXVials
Temnerature 2."°C Present on Sample o Amber 0 Clear D He ~pace 0 No Headspace
i Rec.Broken/Leaking DYes I&No ON/A .0 Yes 0 No ci:N/A D Non AWAL Supplied Cont~rINotes:Unbroken on Sample Notes:.~DYes ONo iiiN/A
Properly Preserved !lfYes ONo DN/A Notes:I
Notes:II
I Rec.Within Hold l\lYes ONo Discrepancies Between Labels and CDC DYes"WNoINotes:INotes:
,
II
1'E:ottle Type !Preservative 'AllEHs OK I I·I I I I .I . I
,,
Anllttf.nia pH<2H,SO,I I.i I I !!I
rnn ----pH <2H,SO,I I I I I I
.~;~jde ,
~?NaOH I I I T ,,
Metals pH <2 HNlJJ---I !I
NO,&NO,.pH<2H,SO,I ----I I I
I Nutrients .pH <2 H2SO,-,
I------i I i
O&G pH <2HCL --...!I
Phenols pH <2 H,SO,--...I ,
Sulfide DH>9NaOH,Z"AC I I I I--I..
I
TKN I DH <2 H,SO,I I I r----,
TOC pH <2 H,PO,I -I i I J--...
TPO,pH <2 H2SO,,I I .r-----.I
TPH pH <2 HCL I i ~
I I i I'----
I I !-......I
I i
,~I,
i I I I "I
'"'____.J..__•<'n~,,_~~~"_II ~~~,,~~_z ~~~~I_._':..-___~~I"I;';~
3)Do Not dip the pH paper in the sample bottle orlid
4)If sample is not preserved properly list its extension and rec~iving pH in the appropriate column above
5)Flag coe and notify client for further instructions
.6)Place client conversation on coe
7)Samples may be adjusted at client request
~
UPS Internet Shipping:Shipment Label Page 1 of 1
UPS Internet Shipping:View/Print Label
1,Print the label(s):Select the Print button on Ihe print dialog box tlla!appears,Note:If your browser does
not support this function select Print from the File menu to print the label.
2.Fold the printed label at the solid line below.Place the label 'Ill a UPS Shipping Pouch.If you do not
have a pouch,affix the folded label using clear plastic shipping tape over the entire label.
3,GETTING YOUR SHIPMENT TO UPS
Customers without a Daily Pickup
til Schedule a same day or future day Pickup to have a UPS driver pickup all of your Internet Shipping
packages.
•Hand the package to any UPS driver in your area.
III Take your package to any location of The UPS Store®,UPS Drop Box,UPS Customer Center,UPS
Alliances (Office Depot@orStaples@)or Authorized Shipping Outlet near you.Items sent via UPS
Heturn ServicessM (including via Ground)arc also accepted at Drop Boxes.
•To find the location nearest you,please visit the 'Find Locations'Ouick linl<at ups.com.
Customers with a Daily Pickup
II:l Your driver will pickup your shlpment(s)as usual.
FOLD HERE -----------------
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https;//WWW.Ups.com/uis/crcate?ActionOriginPair=print_UISReceipt&POPUP_LEVEL=..,2/412010
Rebekah Winkler
From:
Sent:
To:
Cc:
Subject:
Attachments:
Pat Noteboom
Monday,March 08,2010 3:27 PM
'[e-mail]'
AWAL-MGT;AWAL-Office
AWAL NELAP Certifications re:VOCs for Denison Mines
2009-2010-RCRA-UT-CERT-060109.pdf;Blank AWAL COC.xls;Denison Mines COC for
AWAL.xls
Joann,
American West Analytical laboratories (AWAl)is NElAP certified to perform Volatile Organic Compounds (VOCs)by
8260C including Tetrahydrofuran (THF).TH Fwas missing from the 8260C analyte list on our certification letter due to a
clerical error.Work is in progress to reissue our certification letters to include THF.We have been told that this should
be done by the end of this week.The new letter will indicate that our THF certification never lapsed.As soon as we
receive that updated letter of certification,we will send you a copy.A copy of our current NElAP certification letter is
attached.
As you requested,AWAl will include narratives and EDD's with all future data packs.To ensure you receive the
narrative,please request QC 3 on the Chain of Custody (COC)(upper right hand corner).A blank AWAl COC in Excel
format is attached.Also attached is a partially filled out AWAl cae.This can be largely set up in advance to ensure that
you always receive an AWAl QC 3 data pack with a narrative and THF with a reporting limit of 1 >tg/l.Please anticipate
a 10%surcharge for the QC 3 data pack which includes the narrative.
So far in 2010,AWAl has received two sets from Denison Mines,both during the first two weeks of February.Both sets
were labeled as '1st Quarter Ground Water 2010'.Work is in progress to revise the THF reporting limits (Rl)on these
reports to 1 >tg/L.We are also planning on adding narratives and electronic data deliverables (EDDs).This will be done
with no further charge.Ifyou do not want or need these revisions,please let us know.Otherwise please anticipate
receiving them within aweek.
The AWAl Organic laboratory Supervisor,Jenn Osborn,told me most of Denison Mine samples are clean and can be run
undiluted with a Rl of 1 >tg/l on THF.However some of Denison Mine samples have complex matrices and require
dilutions.As you understand,on such samples we will not be able to achieve the Rl of 1 >tg/l on THF.
We look forward to do all we can to support Denison Mines.We would appreciate the opportunity to assist you on your
Quality Assurance Project Plan (QAPP).We routinely provide this service at no charge.let us know any way we can
assist you.
Respectfully,
Pat
Patrick Noteboom
Senior Chemist I Marketing Manager
American West Analytical laboratories
Cell:[phone]
E-mail:J2at@awaL:I.;Lb~&9111
Notice ofconfidentiality.This transmission is intended exclusively for the stated addressee.If received accidentally,please notify the senderimmediately.
Reproduction,distribution and dissemination of this information are strictly prohibited by anyone other than the intended.

Tab F
Laboratory Analytical Reports – Accelerated Monitoring

ENERGYLABORATORIES,INC.•2393Sail Creek Highway(82601)•P.O.Box 3258 'Casper,WY82602III!IifIfJi(ToIIFree888.235.05/5·301.235.05/5·Fax[phone]·[e-mail]·www.energylab.com
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
ClientSample 10:
Denison Mines USA Corp
January 2010 Monthly Groundwater
C10010496·001
MW14
Revised Date:04/26/10
Report Date:02/05/10
Collection Date:01/13/1011:25
DateReceived:01/15/10
Matrix:Aqueous
----..•.._---
Analyses
METALS·DISSOLVED
Manganese
Uranium
Result Units
1990 uglL
65.4 uglL
Qualifiers RL
10
0.30
MCU
QCL Method
E200.8
E200.8
Analysis Date I By
01/19/10 03:29 /Is
01/19/1003:29/ls
...._--_..._--_.•._--------_.-_.•.__..._----
Report
Definitions:
RL ~Analyte reporting limit.
QCl ~Quality control limit.
Mel"Maximum contaminant level.
ND -Not detected at the reporting limit.
£N£RGYLABORATORl£$,INC.-2393 SailCreek Highway(8260lj 'AO Box3258 .Casper,WV82602
Toll Free 888.235.0515 •307.235.0515 -Fax [phone] •[e-mail] •wwwenergylab.com
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
ClientSample 10:
Denison Mines (USA)Corp
1st Quarter Groundwater
C10010995-001
MW18
Report Date:02/10110
Collection Date:01/27/1014:16
DateReceived:01/29/10
Matrix:Aqueous
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date I By
METALS·DISSOLVED
Thallium 3.32 uglL 0.50 E200.8 02/06/1004:45 I ts
Uranium 47.2 uglL 0.30 E200.8 02/0611004:45/ts
Report
Definitions:
RL -Analyte reporting limit.
ael·Quality control limit.
Mel -Maximum contaminant level.
NO -Not detected at the reporting limit.
mittel
'1i'8!JjhQiUU4'
ENERGYLABORATORIES,INC••2393 SailCreek Highway (82601)•P.o.Box3258 •Casper,WY82602milFree888.235.0515 •301.235.0515 •Fax [phone] •[e-mail]·www.energylab.com
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
1st Quarter Ground Water Re-Sample
C10030850-001
MW-18
Report Date:04101110
Collection Date:03/2211015:00
DateReceived:03/26/10
Matrix:Aqueous
Analyses Result Units Qualifiers RL
MCU
QCL Method Analysis Date I By
METALS·DISSOLVED
Thallium
Uranium
3.91 uglL
49.0 uglL
0.50
0.30
E200.8
E200.8
03129/1015:431 sml
03129110 15:431 sml
Report
DefinitIons:
RL ~Analyte reporting limit.
QCL ~Quality control limit.
.----_.._---------....._--._--------------------
Mel ~Maximum contaminant level.
NO ~Not detected at the reporting limit.
ENERGYLABORATORIES,INC••2393Salt CraakHighway(8260lj 'PO Box3258 •Casper,WY82802
Toll Free 888235.0515 •307.235.0515 •Fax [phone] •[e-mail] •wwwenergylab.com
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines (USA)Corp
1st Quarter Groundwater
C10010995-002
MW 19
Report Date:
Collection Date:
DateReceived:
Matrix:
02/10/10
01126/10 18:22
01/29/10
Aqueous
-------_..--....------_....._.._-_.._--_._._.---------.........-_._.__..__..~-
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date I By
MAJOR IONS
Fluoride 1.0 mg/L 0.1 A4500-F C 02/0111014:16/dvg
Nitrogen,Nitrate+Nitrite as N 2.8 mg/L 0.1 E353.2 02/08110 12:26/jal
METALS -DISSOLVED
Thallium 0.56 ug/l 0.50 E200.8 02/06/1004:52/ts
Uranium 7.56 ug/l 0.30 E200.8 02/06/1004:52/Is
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
Mel w Maximum contaminant level.
NO -Not detected at the reporting limit.
ENERGYLABORATORIES,INC.•2393 Sail Creek Highway (82601)•P.O.Box 3258 •Casper,WY82602
TollFree 888.235.0515 •307235.0515 •Fax [phone] •[e-mail]·www.energylab.com
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
1sl Quarter Groundwater 2010
C10010826-001
MW24
Revised Date:05/04/10
Report Date:02110110
Collection Date:01/1911015:05
DateRecelved:01126/10
Matrix:Aqueous
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date I By
MAJOR IONS
Carbonate as C03 ND mg/L 1 A23208 01/27/1012:541 dvg
Bicarbonate as HC03 270 mg/L 1 A23208 01/27/10 12:541 dV9
Calcium 492 mg/L D 1.1 E200.7 02/05/1013:331 cp
Chloride 46 mg/L 1 A4500-CI B 01/27/1011:21/dv9
Fluoride 0.1 mg/L 0.1 A4500-F C 01/28110 12:171dvg
Magnesium 175 mg/L 0.50 E200.7 02105/10 13:33 1cp
Nitrogen,Ammonia as N 0.21 mg/L 0.05 A4500-NH3 G 02104/1010:421 ial
Nitrogen,Nitrate+Nltrite as N 0.1 mg/L 0.1 E353.2 02/0111012:371ial
Potassium 13.0 mg/L 0.50 E200.7 02/05/1013:331 cp
Sodium 500 mg/L D 1.4 E200.7 02/05/10 13:33 1cp
Sulfate 2740 mg/L D 60 A4500-S04 E 02/01/10 16:27/dvg
PHYSICAL PROPERTIES
pH 6.78 s.u.0.01 A4500·H 8 01/26110 12:29/1r
Solids,Total Dissolved TDS @ 180 C 4080 mg/L D 10 A2540 C 01/26/10 15:58/1r
METALS·DISSOLVED
Arsenic ND ug/L 5.0 E200.8 01/29/1003:261 sml
Beryllium ND uglL 0.50 E200.8 01/29/1003:261 sml
Cadmium 2.63 ug/L 0.50 E200.8 01/29/1003:261 sml
Chromium ND ug/L 25 E200.8 01129/1003:261 sml
Cobalt ND ug/L 10 E200.8 01/29/1003:261 sml
Copper ND ug/L 10 E200.8 01/29/1003:261 sml
Iron 1290 ug/L 30 E200.7 02/05/10 13:331 cp
Lead ND uglL 1.0 E200.8 01/29/1003:261 sm!
Manganese 3960 ug/L 10 E200.8 01129/1003:261 sm!
Mercury ND ug/L 0.50 E200.8 01/29/1003:261sml
Molybdenum ND ug/L 10 E200.8 01/29/1003:261 sm!
Nickel 24 ug/L 20 E200.8 01/29/10 03:261 sml
Selenium ND ug/L 5.0 E200.8 01/29/1003:261 sml
SHver ND U9/L 10 E200.8 01129/1003:261 sm!
Thallium 0.84 ug/L 0.50 E200.8 01/29/1003:261 sm!
Tin ND ug/l 100 E200.8 01/29/1003:261 sml
Uranium 1.3 ug/L 0.3 E200.8 05/03/10 12:07/ts
Vanadium ND ug/L 15 E200.8 01/29/1003:26/sml
Zinc 83 ug/L 10 E200.8 01/29/1003:261sml
RADIONUCLlDES·DISSOLVED
Gross Alpha minus Rn &U 0.6 pCi/L U E900.1 02108/10 13:061 cgr
Gross Alpha minus Rn &U Precision (±)0.4 pCi/l E900.1 02/08/10 13:061 cgr
Gross Alpha minus Rn &UMOC 0.6 pCVL E900.1 02/08/1013:061 cgr
.._._._.__._----"-'--'-"'-........__....,.....•.._._-_.-...--------_..,---.--...~..._._..._...__._----,...._..._---._----.
Report RL·Analyte reporting limit.Mel·Maximum contaminant level.
Definitions:QCL -Quality control limit.ND ~Not detected at the reporting limit.
MOe ¥Minimum detectable concentration D -RL increased due to sample matrix interference.
U ~Not detected at minimum detectable concentration
ENERGYLABORATORIES,INC••2393 Sail CreekHighway(82601)•P.0.Box3258 •Casper,WY82602
Toll Free 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·www.energylab.com~---------------------------
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
1st Quarter Groundwater 2010
C10010826·001
MW24
Revised Date:05/04/10
Report Date:02/10/10
Collection Date:01/19/1015:05
DateReceived:01/26/10
Matrix:Aqueous
"-"._---_.--..'"~_.'"._---..'"""._-----_.-......-----._-_........._---_.•....._---.._.."
MCW
Analyses Result Units Qualifiers RL QCL Method Analysis Date I By
DATA QUALITY
NC Balance (±5)-1.30 %Calculation 02/08/1010:49 I kbh
Anions 62.7 meq/L Calculation 02/08/1010:491 kbh
Cations 61.1 meq/L Calculation 02108/1010:491 kbh
Solids,Total Dissolved Calculated 4110 mg/L Calculation 02/08/1010:491 kbh
TDS Balance (0.80 •1.20)0.990 Calculation 02/08/1010:491 kbh
VOLATILE ORGANIC COMPOUNDS
Acetone NO ug/L 20 SW8260B 01/29/10 19:45/wen
Benzene NO ug/L 1.0 SW8260B 01/29/10 19:45/wen
Carbon tetrachloride NO ug/L 1.0 SW8260B 01/29/10 19:45/wen
Chloroform NO ug/L 1.0 SW8260B 01/29/10 19:45/wen
Chloromethane NO ug/L 1.0 SW8260B 01/29/10 19:45/wen
Methyl ethyl ketone NO ugiL 20 SW8260B 01/29/1019:451 wen
Methylene chloride NO ug/L 1.0 SW8260B 01/29/10 19:45/wen
Naphthalene NO ug/L 1.0 SW8260B 01/29/10 19:45 I wen
Toluene NO ug/L 1.0 SW8260B 01/29/10 19:45/wen
Xylenes,Total NO ug/L 1.0 SW8260B 01/29/10 19:45/wen
Surr:1,2·Dichlorobenzene·d4 102 %REC 80·120 SW8260B 01/29/10 19:45 I wen
Surr:Dibromofluoromethane 110 %REC 70-130 SW8260B 01/29/10 19:45/wen
Surr;p-Bromofluorobenzene 100 %REC 80-120 SW8260B 01/29/10 19:451 wen
Surr;Toluene·d8 100 %REC 80-120 SW8260B 01/29/10 19:45/wen
Report
Definitions:
RL •Analyte reporting limit.
QCL·Quality control limit.
MCl .Maximum contaminant level.
NO •Not detected at the reporting limit.
ENERGYLABORATORIES,INC••2393 Sail CreekHighway(82601)'p.D.Box 3258 •Casper,WY82602JIIfIii!IIIi(Toll Free 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·www.energy/ab.com
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
January 2010 Monthly Groundwater
C10010496·002
MW26
Revised Date:04/26/10
Report Date:02/05/10
Collection Date:01/12/1013:50
DateReceived:01/15/10
Matrix:Aqueous
Analyses Result Units Qualifiers RL
MCL!
QCL Method Analysis Date I By
METALS·DISSOLVED
Manganese
Uranium
1290 ug/L
58.6 ug/L
10
0.30
E200.8
E200.8
01/19/1003:361 is
01/19/1003:361ts
VOLATILE ORGANIC COMPOUNDS
Acetone ND ug/L 20
Benzene NO ug/L 1.0
Carbon tetrachloride NO ug/l 1.0
Chloroform 1500 ug/l 100
Chloromethane NO ug/l 1,0
Methyl ethyl ketone NO ug/l 20
Methylene chloride 32 ugll 1.0
Naphthalene NO ug/l 1.0
Toluene NO ug/l 1.0
Xylenes,Total NO ug/l 1.0
Surr:1,2v Dichlorobenzene·d4 110 %REC 80·120
Surr:Dibromoffuoromethane 112 %REC 70v130
Surf:p-Bromofluorobenzene 107 %REC 80·120
Surr:Toluene-d8 106 %REC 80·120
•The reporting limit for Chloroform reflects a 100 times dilution to bring the response into calibration range,
._--~~-
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
01/18/10 17:43/wen
01/18/10 17:43 I wen
01/18/10 17:43/wen
01/19/10 14:00/wen
01/18/10 17:43/wen
01/18/10 17:43/wen
01/18/10 17:43/wen
01118/10 17:43 I wen
01/18/10 17:43/wen
01118/10 17:43/wen
01/18/10 17:43/wen
01/18/10 17:43/wen
01/18/10 17:43/wen
01/18/10 17:431wen
Report
Definitions:
RL -Anafyte reporting limit.
Qel·Quality control limit.
Mel -Maximum contaminant level.
NO ¥Not detected at the reporting limit.
g ENERGYLABORATORIES,INC,•2393 Sail CreekHighway(8280lj 'P'o.Box3258 'Casper,WY82802IJJ;iftJ1_Ti_Oh_7A_~_e_e_8g_9_.2_3_5_.0_'5_15_'_3_0_7._2_'35._._05_1_5_'_A_aX_30_7._.2_'3_~_.I_6._'39_._c_a_sp_e_r_@_e_n_e~_rJ!'_1._ab_,c_o_m_.www__._en_e_"9._'!'_13_b_,c_o_m _
LASORATORY ANALYTICAL REPORT
Client:
Project:
Lab ID:
Client Sample ID:
Denison Mines USA Corp
1st Quarter Groundwater 2010
C10010826-002
MW27
Revised Date:
Report Date:
Collection Date:
DateReceived:
Matrix:
05/04110
02110/10
01/18/1012:42
01/26/10
Aqueous
-----_.~.._-----_..._._.......-u••••••••••••______..-----_..__..------_.......~_._--------~-_.-
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date I By
MAJOR IONS
Carbonate as C03 ND mg/L 1 A2320 B 01/27/10 13:031 dvg
Bicarbonate as HC03 480 mg/L 1 A2320 B 01/27/10 13:031 dvg
Calcium 176 mg/L 0.50 E200.7 02/05/1013:37 I cp
Chloride 37 mg/L 1 A4500-CI B 01/27/1011:28/dvg
Fluoride 0.7 mg/L 0.1 A4500-F C 01/28/1012:191 dvg
Magnesium 75.3 mg/L 0.50 E200.7 02/05/10 13:37 I cp
Nitrogen,Ammonia as N ND mg/L 0.05 A4500-NH3 G 02/04/10 10:44 I jal
Nitrogen,Nitrate+Nitrite as N 5.8 mg/l D 0.2 E353.2 02/01/10 12:391 jal
Potassium 4.28 mg/l 0.50 E200.7 02/05/1013;371 cp
Sodium 7004 mg/l D 0.57 E200.7 02/05/1013;37 I cp
Sulfate 448 mg/l D 6 A4500-S04 E 02/01/10 16:31 I dvg
METALS -DISSOLVED
Arsenic ND ug/L 5.0 E200.8 01/29/1003:31 Ism!
Beryllium ND ug/L 0.50 E200.8 01/29/1003:31 Ism/
Cadmium ND ug/L 0.50 E200.8 01/29/1003;311 sml
Chromium ND ug/l 25 E200.8 01/29/1003:311 sml
Cobalt ND ug/L 10 E200.8 01/29/1003:311 sml
Copper ND ug/l 10 E200.8 01/29/1003:31/sml
Iron ND ug/L 30 E200.7 02/05/10 13:37I cp
lead ND ug/L 1.0 E200.8 01/29/1003;311 sml
Manganese ND ug/L 10 E200.8 01/29/1003;311 sml
Mercury ND ug/L 0.50 E200.8 01/29/1003;311 sml
Molybdenum ND ug/L 10 E200.8 01/29/1003:311 sml
Nickel ND ug/L 20 E200.8 01/29/1003:311 sml
Selenium 10.6 ug/L 5.0 E200.8 01/29/1003;311 sml
Silver ND ug/L 10 E200.8 01/29/1003:311 sml
Thallium ND ug/L 0.50 E200.8 01/29/1003:31 I sml
Tin ND ug/L 100 E200.8 01/29/1003:31 Ism/
Uranium 29.8 ug/L 0.30 E200.8 01/29/1003:31 I sml
Vanadium ND ug/L 15 E200.8 01/29/1003;311 sml
Zinc ND ug/L 10 E200.8 01/29/1003:311 sml
RAOIONUCLIDES -DISSOLVED
Gross Alpha minus Rn &U 1.1 pCi/l E900.1 02/08/1013:06 I cgr
GrossAlpha minus Rn &U Precision (±)0.5 pCi/l E900.1 02/08/1013:06 I cgr
GrossAlpha minus Rn &U MOC 0.6 pCi/L E900.1 02/08/10 13:061 cgr
DATA QUALITY
NC Balance (±5)-1.51 %Calculation 02/0811010;521 kbh
Anions 18.7 meq/L Calculation 02/08/1010:521 kbh
Cations 18.1 meq/l Calculation 02108/10 10;521 kbh
............._...__....--------...,,----_._..._._.,-,,-.----
Report RL w Analyte reporting limit.MCl M Maximum contaminant level.
Definitions:QCl •Quality contro/limit.NO·Not detected at the reporting limit.
MOC .Minimum detectable concentration D •RL increased due to sample matrix interference.
ENERGYLABORATORIES,INC.•2393SaltCreekHighway(82601)'p.o.Box3258 •Casper,WY82602
7MFree 888.235.0515 •307235.0515 •Fax [phone] •[e-mail]·wwwenergylab.comEt»'--------------------------------
LASORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
1st Quarter Groundwater 2010
C10010826-002
MW27
Revised Date:05/04110
Report Date:02/10/10
Collection Date:01/18/1012:42
DateReceived:01/26/10
Matrix:Aqueous
........._-----...•_._---------_........~.--------."--_.__..~._...~.._----------.._•....._.."...-"-'.....~--_....
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date I By
VOLATILE ORGANIC COMPOUNDS
Acetone NO ug/L 20 SW8260B 01/30/1002:14 twen
Benzene NO ug/L 1.0 SW8260B 01/30f10 02:14 j wen
Carbon tetrachloride NO ug/L 1.0 SW8260B 01/30/1002:141 wen
Chloroform NO ug/L 1.0 SW8260B 01130/100Z:14/wen
Chloromethane NO uglL 1.0 SW8260B 01/30/1002:14/wen
Methyl ethyl ketone NO ug/L 20 SW8260B 01/30/10 02:14 I wen
Methylene chloride NO ug/L 1.0 SW8260B 01/30/10 02:14 I wen
Naphthalene NO ugfl 1.0 SW8260B 01f30f10 02:14 fwen
Toluene NO ugfL 1.0 SW8260B 01f30f10 02:14fwen
Xylenes,Total NO ugfL 1.0 SW8260B 01/3011002:141 wen
Surr:1,2-Dichlorobenzene-d4 103 %REC 80-120 SW8260B 01/30/1002:141wen
Surr:Dibromoffuoromethane 114 %REC 70-130 SW8260B 0113011002:141 wen
Surr:p-Bromofluorobenzene 105 %REC 80-120 SW8260B 01f30f10 02:14 f wen
Surr:Toluene-dB 97.0 %REC 80-120 SW8260B 01/3011002:141wen
Report
Definitions:
Rl -Analyte reporting limit.
QCL·Quality control limit.
Mel -Maximum contaminant level.
NO -Not detected at the reporting limit.
ENERGYLABORATORIES,INC••2393Salt Creek Highway(82601)•Po.Box 3258 •Casper,WY82602J!fIJIJ1_7b_"_A_re_e_8._'88._._23_~_.(J._5_'5_'_3_01._.2._'3_~_.(J._'5_/5_'_A_OX_3_0_1._.2._'3_'4._/IJ._::J_9_._ca_S P_8_,_@_en_8_'!J._r-_'"_b_.co_rn_._WWlY._._en_8_r{l._r-_'a_b_.co_rn _
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
ClientSample 10:
Denison Mines USA Corp
1st Quarter Groundwater Re·Sample
C10030675·001
MW27
Report Date:03/25/10
Collection Date:03/15/1013:08
DateReceived:03/19/10
Matrix:Aqueous
-------_._---.._.•..._•.._•....__•..•._------
MCW
Analyses Result Units Qualifier RL QCL Method Analysis Date I By
PHYSICAL PROPERTIES
pH 7.48 s.u.0.01 A4500·H 8 03119/10 13:40 Ilr
Solids,Total Dissolved TDS @ 180 C 1080 mg/L 10 A2540 C 03/19/10 13:59/1r
Report
Definitions:
RL w Analyte reporting limit.
QCL -Quality control limit.
Mel -Maximum contaminant level.
NO 8 Not detected at the reporting limit.
ENERGYLABORATORIES,INC••2393Salt CreekHighway(82601)'Po.Box 3258 •Casper,WY82602
TollFree 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·WWIl(energylab.com
LASORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
1st Quarter Groundwaler 2010
C10010826-003
MW28
Revised Date:05/04/10
Report Date:02/10/10
Collection Date:01/19/10 12:19
DateReceived:01/26/10
Matrix:Aqueous
Qualifiers RL
1 A2320 B 01/27/1013:291 dV9
1 A2320 B 01/27110 13:291dvg
1.1 E200.7 02/05/1013:411 cp
1 A4500-CI B 01127110 11 :351 dvg
0.1 A4500-F C 01/28110 12:391dvg
0.50 E200.7 0210511013:411 cp
0.05 A4500-NH3 G 02/0411010:461ial
0.1 E353.2 02/0111012:421jal
0.50 E200.7 02105/1013:411cp
1.4 E200.7 0210511013:411 cp
60 A4500-S04 E 02/01110 16:331dvg
0.01 A4500-H B 01/26110 12:3711r
10 A2540 C 01/26110 15:5811r
5.0 E200.8 0112911003:581 sml
0.50 E200.8 01/29/1003:58/sm!
0.50 E200.8 0112911003:581 sml
25 E200.8 01129/1003:581 sml
10 E200.8 0112911003:581 sml
10 E200.8 01129/10 03:58 13ml
30 E200.7 0210511013:411 cp
1.0 E200.8 0112911003:581 sml
10 E200.8 01129/1003:581 sml
0.50 E200.8 01/29/1003:581 sml
10 E200.8 0112911003:581 sml
20 E200.8 01129/10 03:581 sml
5.0 E200.8 01/29/1003:581 sml
10 E200.8 0112911003:581 sml
0.50 E200.8 0112911003:581 sml
100 E200.8 01129110 03:581 sml
0.30 E200.8 0112911003:581 sml
15 E200.8 01/29/1003:581 sml
10 E200.8 01/29/1003:58!sml
E900.1 02/08110 13:061cgr
E900.1 02/08/10 13:061 cgr
E900.1 02/08/1013:061cgr
----_._~.__..__.._.._..__....---_....
Analyses Result Units
MAJOR IONS
Carbonate as C03 NO mgfL
Bicarbonate as HC03 165 mg/L
Calcium 517 mg/L
Chloride 102 mg/L
Fluoride 0.6 mg/L
Magnesium 168 mg/L
Nitrogen,Ammonia as N ND mg/L
Nitrogen.Nitrate+Nitrite as N 0.2 mg/L
Potassium 11.6 mg/L
Sodium 310 mg/L
Sulfate 2340 mglL
PHYSICAL PROPERTIES
pH 6.30 s.u.
Solids,Total Dissolved TDS @ 180 C 3490 mg/L
METALS -DISSOLVED
Arsenic 13.0 ug/L
Beryllium ND ug/L
Cadmium 4.01 ug/L
Chromium ND ug/L
Cobalt 31 ug/L
Copper ND ug/L
Iron 36 uglL
Lead NO uglL
Manganese 1560 ug/L
Mercury ND ug/L
Molybdenum ND ug/L
Nickel 26 ug/L
Selenium ND ug/L
Silver ND ug/L
Thallium 0.91 ug/L
Tin NO ug/L
Uranium 3.51 ug/L
Vanadium ND ug/L
Zinc 44 ug/L
RADIONUCLIDES -DISSOLVED
Gross Alpha minus Rn &U 1.0 pCilL
Gross Alpha minus Rn &U Precision (±)0.5 pCi/L
Gross Alpha minus Rn &U MOC 0.6 pCi/L
D
D
D
MCU
QCL Method Analysis Data I By
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
MOe w Minimum delectable concentration
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
o -RL increased due to sample matrix interference.
ENERGYLABORATORIES,INC.•2393Salt Creek Highway(8280/)•P.a,Box 3258 •Casper,WY82602
7011Free 888235.05/5 •307.235.05/5 •Fax [phone] •[e-mail]·wwwenergylab.com
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
1st Quarter Groundwater 2010
C10010826-003
MW28
Revised Date:05/04/10
Report Date:02/10/10
Collection Date:01/19/1012:19
DateReceived:01/26/10
Matrix:Aqueous
Analyses Result Units Qualifiers RL
MCU
QCL Method Analysis Date I By
DATA QUALITY
NC Balance (±5)
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:1,2~Dichlorobenzene·d4
Surr:Dibromofluoromethane
Surf:p-Bromofluorobenzene
Surr:Toluene-d8
-0.877 %Calculation 02/08/1010:521 kbh
54.4 meq/L Calculation 02/0811010:521 kbh
53.4 meq/L Calculation 02/08/1010:521 kbh
3550 mg/L Calculation 02/08/10 10:521 kbh
0.980 Calculation 02/08/1010:521 kbh
NO ug/L 20 SW8260B 01/30/1002:491 wen
NO uglL 1.0 SW8260B 01/30/10 02.491 wen
NO ug/L 1.0 SW8260B 01/30/1002:49/wen
NO uglL 1.0 SW8260B 01/30/1002:49/wen
NO uglL 1.0 SW8260B 01/30/1002:49/wen
NO ug/L 20 SW8260B 01/30/1002:49 twen
NO ug/L 1.0 SW8260B 01/30/10 02:491 wen
NO ug/L 1.0 SW8260B 01/30/10 02:49 Iwen
NO ug/L 1.0 SW8260B 01/30/1002.49/wen
NO ugfL 1.0 SW8260B 01/30/1002:491 wen
107 o/IlREC 80-120 SW8260B 0113011002:491 wen
122 %REC 70-130 SW8260B 01/30/10 02:49 I wen
105 %REC 80-120 SW8260B 01/30/1002:49 I wen
95.0 %REC 80·120 SW8260B 01/30/1002:49/wen
Report
Definitions:
RL •Analyte reporting limit
QCL -Quality control limit.
Mel ~Maximum contaminant lever.
NO"Notdetected at the reporting limit.
ENERGYLABORATORIES.INC.•2393SaIl Creek Highway (8260 I)•AD.Box 3258 •Casper,WY82602
Toll Free 888.2350515 •301.2350515 •Fax [phone] •[e-mail]·wwwenergylab.com
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
151 Quarter Groundwater 2010
C10010826-004
MW30
Revised Date:05104110
Report Date:02110/10
Collection Date:01/2011012:00
DateReceived:01/26/10
Matrix:Aqueous
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date I By
MAJOR IONS
Carbonate as C03 NO mg/L 1 A2320 B 01/27/10 13:37/dvg
Bicarbonate as HC03 196 mg/L 1 A2320 B 01/27/10 13:37/dvg
Calcium 258 mg/L 0.50 E200.7 02/05/1014:151 cp
Chloride 106 mg/L 1 A4500-CI B 01/27/10 11:42/dvg
Fluoride 0.4 mg/L 0.1 A4500-F C 01/2811012:421 dvg
Magnesium 68.0 mg/L 0.50 E200.7 02/05/10 14:15/cp
Nitrogen,Ammonia as N NO mg/L 0.05 A4500-NH3 G 02/04/1010:52/jal
Nitrogen,Nitrate+Nitrite as N 15.4 mg/L 0 0.3 E353.2 02/01/10 12:44/jal
Potassium 6.85 mg/L 0.50 E200.7 02/05/1014:151 cp
Sodium 101 mg/L 0 0.57 E200.7 02/05/10 14:15/cp
Sulfate 722 mg/L 0 30 A4500-S04 E 02/08/1015:541 jal
PHYSICAL PROPERTIES
pH 7.28 5.U.0.Q1 A4500·H B 01/26/10 12:40/lr
Solids,Total Dissolved TDS @ 180 C 1540 mg/L 10 A2540 C 01/26/10 15:59 fir
METALS·DISSOLVED
Arsenic NO ug/L 5.0 E200.8 01/29/1020:311 Is
Beryllium NO ug/L 0.50 E200.8 01/29/1020:311 Is
Cadmium NO ug/L 0.50 E200.8 01129/1020:31 Its
Chromium NO ug/L 25 E200.8 01/29/1020:31/15
Cobalt NO ug/L 10 E200.8 01/29/1020:311 Is
Copper NO ug/L 10 E200.8 01/29/1020:31 I Is
Iron 95 ug/L 30 E200.7 02/05/1014:151 cp
Lead NO ug/L 1.0 E200.8 01/29/1020:31 I Is
Manganese 36 ug/L 10 E200.8 01/29/1020:31/15
Mercury NO ug/L 0.50 E200.8 01/29/1020:31/15
Molybdenum NO ug/L 10 E200.8 01/29/1020:311Is
Nickel NO ug/L 20 E200.8 01/29/1020:31/15
Selenium 40.6 ug/L 5.0 E200.8 01/29/1020:311 Is
Silver NO ug/L 10 E200.8 01/29/1020:31/15
Thallium NO ug/L 050 E200.8 01/29/1020:31/15
Tin NO ug/L 100 E200.8 0112911020:311 IS
Uranium 6.99 ug/L 0.30 E200.8 01/29/1020:31/15
Vanadium NO ug/L 15 E200.8 01/29/1020:31 Its
Zinc NO ugfL 10 E200.8 01/29/1020:31 f Is
RADIONUCLIDES -DISSOLVED
Gross Alpha minus Rn &U 0.4 pCi/L U E900.1 02/08/1013:061 cgr
Gross Alpha minus Rn &U Precision (t)0.4 pCi/L E900.1 02/08/10 13:061 c9r
Gross Alpha minus Rn &U MOe 0.6 pCi/L E900.1 02/08/10 13:06 I cgr
..._._...._....---.-.'--.".....-..._"'_........_......_.._._.....-.....-_..__....-~,_..
Report RL ~Analyte reporting limit.Mel -Maximum contaminant level.
Definitions:QCL-Quality control limit.NO •Not detected at the reporting limit.
MOC •Minimum detectable concentration o -RL increased due to sample matrix interference.
U ~Not detected at minimum detectable concentration
ENERGYLABORATORIES,INC••2393 Sal/CreekHighway(8260/)'Po.Box3258 .Casper,WY82602
TollFree 888.23(;0515 •30723(;0515 •Fax [phone] •[e-mail]·wwwenergylab.com
LASORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
151 Quarter Groundwater 2010
C10010826-004
MW30
Revised Date:05/04/10
Report Date:02/10110
Collection Date:01120/1012:00
DateReceived:01/26/10
Matrix:Aqueous
Analyses Result Units Qualifiers RL
Mew
QCL Method Analysis Date'By
DATA QUALITY
NC Balance (±5)
Anions
Cations
Solids,Total Dissolved Calculated
TOS Balance (0.80 -1.20)
VOLATILE ORGANIC COMPOUNDS
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
Methyl ethyl ketone
Methylene chloride
Naphthalene
Toluene
Xylenes,Total
Surr:1,2.Dichlorobenzene-d4
Surr:Dibromofluoromethane
Surr:p·Bromofluorobenzene
Sure Toluene-dB
1.53 %Calculation 02/09/10 09:17I kbh
22.4 meq/L Calculation 02/09/10 09:17 I kbh
23.0 meq/L Calculation 02/09/1009:17/kbh
1440 mg/L Calculation 02/0911009:17 I kbh
1.07 Calculation 02/09/1009:171 kbh
NO ug/L 20 SW8260B 01/30/1003:24/wen
NO ug/L 1.0 SW8260B 01/30/1003:24/wen
NO ug/L 1.0 SW8260B 01/30/1003:24/wen
NO ug/L 1.0 SW8260B 01/30/1003:24/wen
NO ug/L 1.0 SW8260B 01/30/1003:241 wen
NO ug/L 20 SW8260B 01/30/10 03:24/wen
NO ug/l 1.0 SW8260B 01/3011003:24/wen
NO ug/l 1.0 SW8260B 01/30/1003:24/wen
NO ug/l 1.0 SW8260B 01/30/1003:24/wen
NO ug/l 1.0 SW8260B 01/30/1003',241 wen
108 %REC 80-120 SW8260B 01/30/1003:24/wen
113 %REC 70-130 SW8260B 01/30/1003:24/wen
105 %REC 80-120 SW8260B 01/30/1003:24/wen
96.0 %REC 80-120 SW8260B 01/30/1003:24/wen
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality controllimil,
Mel ~Maximum contaminant level.
NO -Nol detected at the reporting limit.
ENERGYLABORATORIES,INC••2393Sail Creek Highway (82601)•P.O.Box 3258 •Casper,WY82602~liJIIFree888.235.0515·307235.0515·Fax307234.f639·[e-mail]·www.energylab.com
LABORATORY ANALYTICAL REPORT
Client:
Project:
LablD:
Client SamplelD:
Denison Mines USA Corp
January2010 Monthly Groundwater
C1001 0496-003
MW32
Revised Date:04126110
Report Date:02/05/10
Collection Date:01/12/10 13:22
DateReceived:01/15110
Matrix:Aqueous
MCl}
Analyses Result Units Qualifiers RL QCL Method Analysis Date I By
METALS·DISSOLVED
Cadmium 1.26 ug/L 0.50 E200.8 0111911003:43/($
Iron 7300 uglL 30 E200.7 02/02/10 16:081 cp
Manganese 5420 uglL 10 E200.7 02102/10 16:081cp
Nickel 52 uglL 20 E200.8 01/1911003:4311$
RADIONUCLlDES·DISSOLVED
Gross Alpha minus Rn &U 3.9 pCi/L E900.1 01126/1015:231cgr
Gross Alpha minus Rn & U Precision (:1:)0.8 pCilL E900.1 0112611015:231 cgr
Gross Alpha minus Rn &U MOe 0.6 pCilL E900.1 01126/10 15:23/cgr
.-...-_...•_-...._-~.._-----
Report
Definitions:
RL -Analyte reporting limit.
QCL M Quality control limit,
MOe -Minimum detectable concentration
Mel·Maximum contaminant Jevel.
NO .Not detected at the reporting limit.
ENERGYLABORATORIES,INC.•2393 SailCreek Highway (8260IJ'Po.Box 3258 •Casper,WV82602/rIlllliEa 7/)11Free 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·www.energylab.com
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
January 2010 Monlhly Groundwater
C1001 0496-004
MW65
Revised Date:04/26/10
Report Date:02/05/10
Collection Date:0111211013:22
DateReceived:01/15/10
Matrix:Aqueous
Analyses Result Units Qualifiers RL
MCLJ
QCL Method Analysis Date f By
METALS·DISSOLVED
Cadmium
Iron
Manganese
Nickel
RADIONUCLIDES •DISSOLVED
Gross Alpha minus Rn &U
Gross Alpha minus Rn &U Precision (±)
Gross Alpha minus Rn &U MDe
1.34 ug/L
7280 ug/L
5340 ug/L
49 ug/L
1.3 pCl/L
0.5 pGi/L
0.6 pCi/L
0.50 E200.8 01/19/1004:161 Is
30 E200.7 02/02/10 16:161 cp
10 E200.7 02/02/1016:161 cp
20 E200.8 01119/10 04:16 lis
E900.1 01/26/10 15:231 cgr
E900.1 01/26/10 15:23/cgr
E900.1 01/26/10 15:23/cg,
Report
Definitions:
RL .Analyte reporting limit.
QCL w Quality conlrollimit.
MDe .Minimum detectable concentration
Mel.Maximum contaminant level.
NO .Not detected at the reporting limit.
ENERGYLABORATORIES,INC••2999SaIl Creek Highway(8260I)•P.D.Box 9256 •Casper,WY 82602
7011Free 888.2950515 •9012950515 •Fax [phone] •[e-mail]·WWlt:energylab.com
LASORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
1st Quarter Groundwater 2010
Cl00l0826-005
Trip Blank
Revised Dale:05/04/10
Report Dale:02/10/10
Collecllon Dale:01120/10 12:00
DaleReceived:01126110
Matrix:Aqueous
Analyses Result Units Qualifiers RL
MCU
QCL Method Analysis Date I By
VOLATILE ORGANIC COMPOUNDS
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
Methyl ethyl ketone
Methylene chloride
Naphthalene
Toluene
Xylenes,Total
Surr:1,2·Dichlorobenzene-d4
Surr:Dibromofluoromethane
Surr:p-Bromofluorobenzene
Surr:Toluene-dB
NO ug/L
NO uglL
NO uglL
NO ug/L
NO uglL
NO ug/L
NO ug/L
NO ug/L
NO uglL
NO ug/L
106 O!cREC
109 %REC
106 %REC
97.0 %REC
20
1.0
1.0
1.0
1.0
20
1.0
1.0
1.0
1.0
80-120
70-130
80-120
80-120
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
01/30/1004:001 wen
01/30/1004;001 wen
01/30/10 04:001 wen
01/30/1004:001 wen
01/30110 04:00 I wen
01/30/1004:001 wen
01/30/1004:001 wen
01/30/1004:001 wen
01130/1004:00/wen
01/30/10 04:00 Iwen
01130/1004:00 I wen
01/3011004:001 wen
01/30/1004:00Iwen
01/30/1004:00/wen
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
Mel -Maximum contaminant level.
NO -Not detected at the reporting limit.
ENERGYLABORATORIES,INC.•2393Sail CreekHigllway(82601)'Po.Box 3258 •Casper,WY 82602
Toll Free 888.2350515 •307.2350515 •Fax [phone] •[e-mail]·www.ellergyleb.com
ANALYTICAL SUMMARY REPORT
FebrualY 10.2010
Denison Mines (USA)Corp
6425 S Hwy 191
Blanding.UT 84511
Workorder No.:C10010995 Quole 10:C1640 -POC Welis I Monthly Groundwaler Sampling
Project Name:1st Quarter Groundwater
..................._..._-_.._--_.._-_....__..._---
Energy Laboratories,Inc.received the following 2 samples for Denison Mines (USA)Corp on 1/29/2010 for analysis.
C10010995..001 MW18
C10010995-002 MW19
To.!
Metals by ICP/ICPMS,Dissolved
Fluoride
Nitrogen,Nitrate +Nitrite..-------_.._._~.._-~.-
Metals by ICP/ICPMS,Dissolved
Aqueous
====,oc c.=.==
Aqueous01/2711014:1601129/10
01/26/1018:2201/29/10
Clien!Sample 10SamplolO
Any exceptions or problems with the analyses are noled in the LaboratolY Analyticai Report,the QAlQC SummalY
Report,or the Case Narrative.
The results as reported relate only to the Item(s)submitted for testing.
If you have any questions regarding these test results.please call.
Report Approved By:&xhw I:J.LU/,Qj,o
Stephanie D.WaldfOP'--
Reporting Supervisor
ENERGY LABORATORIES,INC.'2393SaIICreekHighway(82601)·Po.Box 3258 •Casper,WY82602
Toll Free 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail] •wwwenergylab.com
CLIENT:Denison Mines USA Corp
Project:15t Quarter Groundwater
Sample Delivery Group:C10010995
ORIGINAL SAMPLE SUBMITTAL(S)
All original sample submittals have been returned with the data package.
ReportDate:02110110
CASE NARRAliVE
SAMPLE TEMPERATURE COMPLIANCE:4'C (t2'C)
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 a 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 (2 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 8 days.
SOIUSOLID SAMPLES
AU samples reported on an as received basis unless otherwise indicated.
ATRAZINE,SIMAZINE AND PCB ANALYSIS
Data for PCBs,Atrazine and Simazine are reported from EPA 525.2.PCB data reported by ELI 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
ell-h -Energy Laboratories,Inc.-Helena.MT
eli-r -Energy Laboratories,Inc.-Rapid City,SO
ell-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.-CASPER,WY certifies that certain method selections contained In this report meet
requirements as set forth by the above accrediting authorities.Some results requested by the cHent 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 Ell's certification coverage by visiting .WWW.energylab.com
Ell 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
ENERGYLABORATORIES,INC••2393SailCreek Highway (82601)•Po.Box 3258 •Casper,WV82602
7iJII Free 888.235.0515 •307:235.05/5 •Fax 307:234./639 •[e-mail]·www.energylab.com
QA/QC Summary Report
Client:Denison Mines (USA)Corp
Project:1st Quarter Groundwater
Report Date:02110/10
Work Order:Cl00l0995
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLlmlt Qual
Method:A4500·F C
Sample 10:MBLK
Fluoride
Sample 10:LCS
Fluoride
Sample10:Cl00l0970·00BBMS
Fluoride
Sample 10:Cl00l0970·00BBMSO
Fluoride
Method Blank
NO mglL
Laboratory Control Sample
1.04 mg/L
Sample Matrix Spike
1.19 mglL
Sample Matrix Spike Duplicate
1.17 mg/L
0.05
0.10
0.10
0.10
Run:MANTECH_l00201A
Run:MANTECH_l00201A
104 90 110
Run:MANTECH_l00201A
104 80 120
Run:MANTECH_l00201A
102 80 120 1.7
Batch:R129153
02/01/1010:47
02/01/1010:50
02101/1014:01
02/01/1014:04
10
Qualifiers:
RL •Analyte reporting limit.
_.----...._---
NO ¥Not detected at the reporting limit.
ENERGYLABORATORIES,INC.•2393 Sail Creek Highway (82601)•Po.Box 3258 •Casper,WY82602
Toll Free 888.235.0515 •301:235.0515 •Fax 301:234.1639 •casper@energylab,com •wwwenergylab,com
QA/QC Summary Report
Client:Denison Mines (USA)Corp Report Date:02110110
Project:1st Quarter Groundwater Work Order:C10010995
.-,------~-~---._.___0••___._---.,,-.-
Analyte Count Result Unlls RL %REC Low Limit High Limit RPO RPOLlmlt Qual
Method:E200,8 Balch:R129368
Sample 10:LRB ~Method Blank Run:ICPMS2·C_l00205A 02105/1013:42
Thallium NO mg/L 3E-05
Uranium NO mg/L 8E-06
Sample 10:lFB ~Laboratory Fortified Blank Run:ICPMS2-C_l00205A 02105/1013:49
Thallium 0.0513 mg/L 0,0010 103 85 115
Uranium 0,0505 mg/L 0.00030 101 85 115
Sample 10:Cl002006S-012AMS4 ~Sample Matrix Spike Run:ICPMS2·C_l00205A 02106/1007:07
Thallium 0,0502 mg/L 0.0010 100 70 130
Uranium 0,0881 mg/L 0,00030 108 70 130
Sample 10:Cl002006S-012AMSO ~Sample Matrix Spike Ouplicate Run:ICPMS2·C_l00205A 02106/1007:41
Thallium 0,0500 mg/L 0,0010 100 70 130 0.4 20
Uranium 0,0873 mg/L 0.00030 107 70 130 1 20
Qualifiers:
RL ~Analyte reporting limit.NO .Not detected at the reporting limit.
ENERGYLABORATORIES,INC.•2393 Sail Creek Highway (8260 f)•P.0,Box 3258 •Casper,WY82602
To/I Free 888.235.0515 •307.235.0515 •Fax 307.234,1639 •[e-mail]·wwwenergylab,com
QA/QC Summary Report
Client:Denison Mines USA Corp
Project:1st Quarter Ground Water Re-Sample
Report Date:03130110
Work Order:C10030850
Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLlmlt Qual
Method:E200.8
Sample 10:LRB
Thallium
Uranium
~Method Blank
NO m9/L
ND mg/L
Run:ICPMS4-C_l00329A
2E-05
8E-06
Batch:R131098
0312911012:39
Sample 10:LFB
Thallium
Uranium
Sample 10:C10030855·008CMS4
Thallium
Uranium
.f Laboratory Fortified Blank
0.0532 mg/L
0.0536 mg/L
~Sample Matrix Spike
0,0565 mg/L
0.0588 mg/L
0.0010
0,00030
0,0010
0,00030
Run;lCPMS4-C_100329A
106 85 115
107 85 115
Run:ICPMS4-C_l00329A
113 70 130
114 70 130
0312911012:46
03/2911016:51
Sample10:Cl 0030855·008CMSO ~
Thallium
Uranium
Sample Matrix Spike Duplicate
0,0579 mg/L
0.0604 mgfl
0.0010
0,00030
115
117
Run:ICPMS4-C_100329A
70 130
70 130
2.4
2,8
0312911017:25
20
20
Qualifiers:
RL •Analyte reporting limit.ND -Not detected at the reporting limit
Energy Laboratories Inc
Workorder Receipt Checklist
Denison Mines USA Corp
Login completed by:Corinne Wagner
Reviewed by:BL2000lkschroeder
Reviewed Date:3/29/2010
111111111111 ~Illllllllllilli 111111111111111111111
C10030850
Date Received:3/2612010
Received by:ha
Carrier name:FedEx
Shipping container/cooler in good condition?Yes 0 No 0
Custody seals intact on shipping container/cooler?Yes 0 No 0
Custody seals intact on sample bottles?Yes 0 No 0
Chain of custody present?Yes 0 No 0
Chain of custodY signed when relinquished and received?Yes 0 No 0
Chain of custody agrees with sample labels?Yes 0 No 0
Samples in proper container/bottle?Yes 0 No 0
Sample containers intact?Yes 0 No 0
Sufficient sample volume for indicated test?Yes 0 No 0
All samples received within holding time?Yes 0 No 0
Containerrremp Blank temperature:3"C On Ice
Water ~VOA vials have zero headspace?Yes 0 No 0
Water -pH acceptable upon receipt?Yes 0 No 0
Contact and Corrective Action Comments:
None
Not Present 0
Not Present 0
Not Present 0'
No VOA vials submitted 0"
Not Applicable 0
-LolLChainofCustodyandAnalyticalRequestRecord/~'bM_trltZ.UlIA'.-_.,,-_..........•.....,.........._.........................u .........~...................
compa:r>e:Project Namf:iWS'permi/~tc.'ld.krl!J~(
Sample Origin EPNState Compliance:
I Wi'XJN (YJ 1N6),:;.r .A ~,j)"-State:tAl Yes ~No 0
Report Mail Add~¥o co~~:me:a~~Phone/Fax:'-If /"Email:Sampler:(Please Print)p..O.<j £111 ?-7Z{h'::",,",;-£1/.elv'f21,.,.A<"./A1'xl(~{1
Invoice Address:(Invoice Contact &Phone:Purchase Order:Quote/Bottle Order.'-~"""</....
Special Report/Formats:5:&Im&I1'\1@O@ 1M~@I1D~'jj'~@ ..Contact ELI prior to I~(\DY~\(.
Cl ~RUSH sample submittal
'C.O(l)=for charges and Cooler lOts):
~co;gOIQ:i 0 i="R scheduling -See QVccn-\-._>0 >Oro W ;::Instruction PageDowDEOOJEOT(Electron;c Data)~(f)~m$:J:0:s:=~C>"0 ReceiptTempDPOTWNVWTPFormat:u °oe ()c Comments:o«~lml~"UDState:D LEVEL IV <t:t'3 DC~Q)$c:';::I-'"lio..roOQ cDOther:D NELAC E~I1i5 'I-'s On Ice:{}
:::IQ).:::ID$:.~<t:f--5zlS...«Ig>o <:W ~CustodySealf6>1 W '"On Bottle Y N
~J (J)"0if)C On Cooler ~~'"-,...i .;ii5 H Intact
SAMPLE IDENTIFICATION Collection Collection
(Name,Location,Interval,etc.)MATRIX r ,--'Signature t)Date Time Match
1 L~·Z2.(O I-fA.}'X IxlY!vJ -It ISM ~
2 ~
3 Q>
4 11
5 ~
6 ~
7 ~
8 w·o\l..JlLi-<,
9 ~
10 ~
Custody U~hedbytJ,):DatefTime:IlfbO 12..9""llJ Receivedby (print):DatefTime:Signature:
"......Yt J"t.<;3'?E-/ORecordRelinqaishe<l by(print):DatefTime:I Signtlture:-Receivedby (print):DatefTime:Signature:
MUST be
Signed ecelve yarary:ate lme:·~'X'o~Sample Disposal:Return to Client Lab Disposal:";''Z,(,•(()C1<.O
In certain circumstances,samples submitted to Energy Laboratories,Inc.may be subcontracted to other certified laboratories in order to complete the analysis requested.
This serves as notice ofthis possibility.All sub-contract datawill be clearly notated on your analytical report.
Visit ourweb site atwww.energylab.comforadditional information,downloadable fee schedule,forms,and links.
ENERGYLABORATORIES,INC.-2393Sail Creek Highway (82601)-P,o.Box 3258 •Casper,WY82602
..7iJIIFree888.235.0515 -307.235.0515 -Fax 307.234,1639 -casper@energylab,com-www.energylab,com
ANALYTICAL SUMMARY REPORT
March 25,2010
Denison Mines USA Corp
6425 S Hwy 191
Blanding,UT 84511
Workorder No,:C10030675 Quote 10:C1640·POC WeHs I Monthly Groundwater Sampli~g
Project Name:1st Quarter Groundwater Re·Sample
Energy Laboratories,Inc.received the foHowing 1 sample for Denison Mines USA Corp on 3/19/2010 for analysis.------~-~-"--------------_.-...
Sample 10 Client Sample 10 Collect Date Receive Date Matrix Test
C10030675-001 MW27 03/15/1013:0803/19/10 Aqueous pH
Solids,Total Dissolved-------_._--------------------•...'-~'--
Any exceptions or problems with the analyses are noted in the Laboratory Analytical Report,the QNQC Summary
Report,or the Case Narralive,
The results as reported relate only to the item(s)submitted for testing.
Ifyou have any questions regarding these test results,please call.
Report Approved By:
Stephanie D.Waldrop 6
Reporting Supervisor
ENERGYLASORATORIES,INC.•2393 Salt Creek Highway(82601)•Po.Box 3258 •Casper,WY82602IJIH.flll!J7 lbllFree 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·www.eflergylab.com~----~=-=-=-----=::--~------QA/QC Summary Report
Client:
Project:
Denison Mines USA Corp
1st Quarter Groundwater Re-Sample
Report Date:03/2511 0
Work Order:C10030675
Analyte Result Units RL %REC Low Limit High Limit RPD RPDLlmlt Qual
Method:A2540 C Balch:100319_1_SLDS-TDS-W
Sample 10:MBLK1_100319 Method Blank Run:BAL-l_100319A 03/19/1013:58
Solids,Total Dissolved TOS@ 180 C ND mg/L 10
SamplelD:LCS1_100319 Laboratory Control Sample Run:BAL-l_100319A 03/19/1013:58
Solids,Total Dissolved TDS @ 180 C 994 mg/L 10 99 90 110
SamplelD:C10030675·001AMS Sample Matrix Spike Run:BAL-l_100319A 03/19/1013:59
Solids,Total Dissolved TDS @ 180 C 3160 mg/L 10 106 90 110
SamplelD:C10030675-001AMSD Sample Matrix Spike Duplicate Run:BAL-1-100319A 03/19/1013:59
Solids,Total Dissolved TDS @ 180 C 3200 mg/L 10 106 90 110 1.3 10
Qualifiers:
RL •Analyte reporting limit NO -Not detected at the reporting limit.
ENERGYLABORATORIES,INC.•2383SailCreek Highway(82601)•P.D.Box 3258 •Casper,WY82602
J1lIliW(_70_Vl_A_rO_O_8._'B_'8._23_'5._oa_'5_1_5_'_3_0_7._23_'5.-:oa='5-:'5:-:c'=A-:8X::-:30=7._oZ_'3_'40_'_83_'8_'_ca-:s=.P_er_@_8fl_OIi-:gY._18_b_oc_om_._www.__oO_.fIO_Ii_gY._IO_b_0c_om _
QA/QC Summary Report
Client:
Project:
Denison Mines USA Corp
151 Quarter Groundwater Re-Sample
Report Date:03/25/10
Work Order:C10030675
Analyte Result Units RL %REC Low Limit High Limit RPO RPOLlmlt Qual
Method:A4500·H B
Sample10:ICV1_100319_1
pH
Initial Calibration Verification Standard
5085 SoUo 00010 100 98
Analytical Run:ORION555A-2_100319A
03/19/1012:29
102
Method:A4500·H B
Sampte10:C10030575·001AOUP
pH
Sample Duplicate
7.55 s.U.00010
Run:ORION555A-2_100319A
009
03/19/1013:43
10
Qualifiers:
RL .Analyte reporting limit.NO ~Not detected at the reporting limit
Jg~l{(~
.e.'tl.Jc'.!u.k.ll~"
Compa~e:
J ),oN(~1\1
Chain of Custody and Analytical Request Record
PLEASE PRINT (Provide as much information as possible.)
pris;a71;;,;;it·Z~uwJudt A?_Sl;:leori~'1
page~Of~'
EPAlState Compliance:
veyB(No D
C7J::me 12/~Phone;1r '7?'Z//Email:Report Mar~~~~s:~UJ1
rR'trvltrla 1...[x4SII
Invoice Address:/
('~W<-l
Invoice Contact &Phone:
_~J.W~
Purchase Order:
Sampler:(Please Print)
~~//14c4
Quote/Bottle Order:/
SAMPLE IDENTIFICATION
(Name,Location,Interval.etc.)
l'S·(I.)-I0 I/?,;)(
D EOO/EOT(Electronic Oata)
Format._
D LEVEL IVDNELAC
~'\:7@O@ ffi][j'!@(!!J[j'!@'[i'@:[Q)
(rJNDolce:
Custody Seal n
On Bottle Y 'N'
OoCool"6N
Intact Y N
Signature N
Match
~
Contact ELI priorto
RUSH sample submittal
for charges and
scheduling -See fl I
Instruction Page L'//..;"11
I ReceiptTempComments:cJ...0 C
..
Cl i='I R
LU i'"
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U c:«~I UI-'"l-E«=>1-1LU12 S
LU '"(/)'0c:
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0-~o (/)1!:~m~OI"'"._>0 >,$EU)~~~3~~rJ 0>o«~lffil~
.....m$c:.§llJo..roO"'".D~I·-~EI'->ro I~m.;Q.l:S:Zi5..«IOlo~~l
<J)v
MATRIX ~~Collection
Time
Collection
Date
Special Report/Formats:
,
Vi'lIA I 2-:;.-
DowDporwNVWTPDState:_
D Other:_
2 ~~
3 1fQ)
nnn
4 I~
5 I~
6 ~
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I~1011 <~?'YCustody/'101'Received by (print):Dateffime:--signature:
Record Received by (print):Datemme:Signature:
Ml:'ST bel--------------¥-------tTe:!::="!===-"""I'l;=li!"""".,....-.,..,.-~,g~"'~"'e~'-----j
Signed Sample Disposal:Return to Client:Lab Disposal:_
1n certain circumstances,samples sUbmitted to Energy Laboratories,Inc.may be subcontracted to othercertified laboratories in orderto complete the analysis requested.
This serves as notice of this possibility.All sub-contract data will be clearly notated on your analytical report.
Visit our web site at www.energylab.com for additional information,downloadable fee schedule,forms,and links.
Energy Laboratories Inc
Workorder Receipt Checklist
Denison Mines USA Corp
Login completed by:Edith McPike
Reviewed by:
Reviewed Date:
11II1II11II1i111~111~1I1111111111 Ililllllllllllll
C10030675
Date Received:3/19/2010
Received by:em
Carrier name:FedEx
Shipping container/cooler in good condition?
Custody seals intact on shipping container/cooler?
Custody seals intact on sample bottles?
Chain of custody present?
Chain ofcustody signed when relinquished and received?
Chain ofcustody agrees with sample labels?
Samples in proper container/bottle?
Sample containers intact?
Sufficientsample volume for indicated test?
All samples received within holding time?
Containerrremp Blank temperature:
Water·VOA vials have zero headspace?
Water·pH acceptable upon receipt?
Contact and Corrective Action Comments:
None
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
No 0
No 0
No 0
No 0
No 0
No 0
No 0
No 0
No 0
No 0
No 0
No 0
Not Present 0
Not Present 0
Not Present 0
No VQA vials submitted 0
Not Applicable 0
ENERGYLABORATORIES,INC.•2393 Sail Creek Highway(82601)•P.o.Box3258 •Casper,WY82602
TollFree 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·www.energylab.com
CLIENT:Denison Mines USA Corp
Project:1st Quarter Groundwater Re-Sample
Sample Delivery Group:C10030675
ORIGINAL SAMPLE SUBMITIAL(S)
All original sample submittals have been returned with the data package.
Report Date:03/25/10
CASE NARRATIVE
SAMPLE TEMPERATURE COMPliANCE:4°C (±2°C)
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 jf there is evidence that the chilling process has
begun.
GROSS ALPHA ANALYSIS
Method 900.0 for 9ross alpha and gross beta is intended as a 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 (2 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 ofcounting should not exceed 8 days.
SOIUSOLID SAMPLES
All samples reported on an as received basis unless otherwise indicated.
ATRAZINE,SIMAZINE AND PCB ANALYSIS
Data for PCBs,Atrazine and Simazine are reported from EPA 525.2.PCB data reported by ELI 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 ofsampie 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,SO
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 ofthis Analytical Report reiate only to the items submitted for analysis.
ENERGY LABORATORIES,INC.-CASPER,WY 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
underthese certifications.All analysis data to be submitted for regUlatory enforcement should be certified in the sample
state of origin.Please verify ELI's certification coverage by visiting www.energylab.com
Ell 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
/4WWI,@@iiiM'M1II'
April 01,2010
ENERGYLABORATORIES,INC••2393SailCreekHighway(82601)•PO Box 3258 •Casper,WY82602
7011Free 888.235.0515 •301.235.0515 •Fax [phone] •[e-mail] •www.energylab.com
ANALYTICAL SUMMARY REPORT
Denison Mines USA Corp
6425 S Hwy 191
Blanding,UT 84511
Workorder No.:C10030850 Quote 10:C1640 -POC Wells I Monthly Groundwater Sampling
Project Name:1st Quarter Ground Water Re-Sample.__._---._----~--
Energy Laboratories,Inc.received the following 1 sample for Denison Mines USA Corp on 3/26/2010 for analysis.
Sample 10 Client Sample 10 Collect Date Receive Date Matrix Test
C10030850-001 MW-18--_....•--..--_.
03/22/1015:0003/26/10 Aqueous Metals by ICPIICPMS,Dissolved-_......_---~.
Any exceptions or problems with the analyses are noted in the Laboratory Analytical Report,the QAlQC Summary
Report,orthe Case Narrative.
The results as reported relate only to the item(s)submitted for testing.
If you have any questions regarding these test results,please call.
Report Approved By:~haM D.U~Stepanie D.Waldrop
Reporting Supervisor
14Wlij)''emiUhij+1tQi'
ENERGYLABORATORIES,INC••2393SailCreekHighway(82601)•PO Box3258 •Casper,WY82602
Toll Free 888.235.0515 •307235.0515 •Fax [phone] •[e-mail]·www.energylab.com
CLIENT:Denison Mines USA Corp
Project:1st Quarter Ground Water Re-Sampie
Sample Delivery Group:C10030850
ORIGINAL SAMPLE SUBMITTAL(S)
All original sample submittals have been returned with the data package.
Report Date:04/01/10
CASE NARRATIVE
SAMPLE TEMPERATURE COMPLIANCE:4'C (±2'C)
Temperatl.lre 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 a 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 (2 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 8 days.
SOIUSOLID SAMPLES
All samples reported on an as received basis unless otherwise indicated.
ATRAZINE,SIMAZINE AND PCB ANALYSIS
Data for PCBs,Atrazine and Simazine are reported from EPA 525.2.PCB data reported by ELI reflects the resuits for seven
individual Aroclors.VVhen the results for all seven are NO (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 Analylical 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,SO
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.-CASPER,WY 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 ELI's certification coverage by visiting www.energylab.com
Ell appreciates the opportunity to provide you with this analytical service.For additional information and services visit our
web page www.energylab.com.
ENERG YLASORArORIES,INC.•2393 Sail Creek Highway (82601)•P.O.Box 3258 •Casper,WY82602
Toll Free 888.235.0515 •301.235.0515 •Fax [phone] •[e-mail]·www.energylab.com
ANALYTICAL SUMMARY REPORT
April 26,2010
Denison Mines USA Corp
6425 S Hwy 191
Blanding,UT 84511
Workorder No.:C10010496 Quote 10:C1640·pac Wells I Monthiy Groundwater Sampling
Project Name:January 2010 Monthly Groundwater
-------------
Energy Laboratories,Inc.received the following 5 samples for Denison Mines USA Corp on 1/15/2010 for analysis.
Sample 10 Client Sample 10 Collect Date Receive Date Matrix Test
C10010496·001 MW14 01/1311011:2501115/10 Aqueous Metals by ICP/ICPMS,Dissolved_...---_..,..•_-_.'~-"'-'--
C10010496·002 MW26 01112/1013:5001/15/10 Aqueous Metals by ICP/ICPMS,Dissolved
SW8260B vacs,Standard List
C10010496·003 MW32 01/12/1013:2201/15/10 Aqueous Metals by ICP/ICPMS,Dissolved
Gross Alpha minus Rn222 and Uranium._--------_.•..._--------_._._----_.--_.._---
C10010496-004 MW65 01/12/1013:2201/15/10 Aqueous Same As Above
C10010496-005 Trip Blank 01/12/1013:5001/15/10 Aqueous SW8260B vacs,Standard List
..~_._--------.~-_.._•._----,._-
Any exceptions or problems with the analyses are noted in the Laboratory Analytical Report,the QAlQC Summary
Report,or the Case Narrative,
The results as reported relate only to the item(s)submitted for testing.
If you have any questions regarding these test results,please call.
Report Approved By:
ENERGYLABORATORIES,INC.·2393SaIl CreekHighway (82601)'AO.Box 3258 •Casper,WY82602
Tol/Free 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·wwv.:energylab.com
CLIENT:Denison Mines USA Corp
Project:January 2010 Monthiy Groundwater
Sampte Delivery Group:C10010496
Revised Date:04/26/10
Report Date:02/05/10
CASE NARRATIVE
REVISED/SUPPLEMENTAL REPORT
The attached analytical report has been revised from a previously submitted report due to the request by JoAnn Tischler for
the following corrections:Chloroform result footnoted on sample -002 to show dilution.
ORIGINAL SAMPLE SUBMITIAL(S)
All original sample submittals have been returned with the data package.
SAMPLE TEMPERATURE COMPLIANCE:4'C (±Z'C)
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 ifthere is evidence that the chilling process has begun.
GROSS ALPHA ANALYSIS
Method 900.0 for gross alpha and gross beta is intended as a 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 (2 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 8 days.
SOIUSOLID SAMPLES
All samples reported on an as received basis unless othelWise indicated.
ATRAZINE,SIMAZINE AND PCB ANALYSIS
Data for PCBs,Atrazine and Simazine are reported from EPA 525.2.PCB data reported by ELI reftects the results for seven
individual Aroclors.When the results for all seven are NO (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,SO
eli"t"Energy Laboratories,Inc.H 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 ofthis Analytical Report relate only to the items submitted for analysis.
ENERGY LABORATORIES,INC.-CASPER,WY 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 ELl's certification coverage by visiting www.energylab.com
Ell appreciates the opportunity to provide you with this analytical service.For additional information and services visit our
web page www.energylab.com.
ENERGVLABORATORIES,INC••2393SaIl Creek Hi9hway (82801)•P.0.Box 3258 •Casper,WV82602
70i1Free 888.235.0515 •307.235.0515 •Fax [phone] •casper@energy/ab.com·www.energy/ab.com
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab ID:
Client Sample ID:
Denison Mines USA Corp
January 2010 Monthly Groundwater
C10010496-005
Trip Blank
Revised Date:04/26/10
Report Date:02/05/10
Collection Date:01/12/1013:50
DateRecelved:01/15/10
Matrix:Aqueous
----_.-..._._-------.
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date I By
VOLATILE ORGANIC COMPOUNDS
Acetone NO ug/L 20 SW8260B 01/18/10 18:18/wen
Benzene NO ug/L 1.0 SW8260B 01/18/10 18:18/wen
Carbon tetrachloride NO uglL 1.0 SW8260B 01/18/10 18:18/wen
Chloroform NO ug/L 1.0 SW8260B 01/18/10 18:181 wen
Chloromethane NO ug/L 1.0 SW8260B 01/18/101B:18/wen
Methyl ethyl ketone NO ug/l 20 SW8260B 01/18/1018:181 wen
Methylene chloride NO ug/L 1.0 SW8260B Q1f18f10 18:18 {wen
Naphthalene NO ug/L 1.0 SW8260B 01118/10 18:18/wen
Toluene NO ug/L 1.0 SW8260B 01/18/10 18:18/wen
Xylenes,Total NO ug/L 1.0 SW8260B 01/18/10 18:18/wen
Surr:1,2-Dichlorobenzene·d4 114 %REC 80-120 SW8260B 01118/10 18:18/wen
Surr:Dlbromofluoromethane 111 %REC 70-130 SW8260B 01/18/10 18:18/wen
Surr:p-Bromofluorobenzene 106 %REC 80-120 SW8260B 01/18/10 18:18/wen
Surr:Toluene-dB 107 %REC 80-120 SW8260B 01/18/10 18:18/wen
Report
Definitions:
RL ~Analyte reporting limit.
QCL -Quality control limit.
-_....._~---
Mel-Maximum contaminant level.
NO .Not detected at the reporting limit.
ENERGYLABORATORIES,INC.•2393Sail CreekHigllway (82601)'Po.Box 3258 •Casper,WY82602
TollFree 888.235.0515 •301.235.0515 •Fax [phone] •[e-mail]·wwwenergy/ab.com
Client:
Project:
QAIQC Summary Report
Denison Mines USA Corp
January2010 Monthly Groundwater
---------_....-._._--------_.._..._-------
Revised Date:04/26/10
Report Date:02/05/10
Work Order:C10010496
Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method:E200.7
Sample 10:MB·100202A
Iron
Manganese
~Method Blank
NO
NO
mg/L
mg/L
0.002
0.0004
Run:ICP2·C,100202A
Balch:R129210
02102/1014:52
Sample 10:C10010490·001CMSD 1
Iron
Manganese
Sample 10:LFB-100202A
Iron
Manganese
Sample 10:C10010490-001CMS2
Iron
Manganese
£Laboratory Fortified Blank
0.998 mg/L
0.945 mg/L
£Sample Matrix Spike
1.99 mg/L
2.02 mg/L
Sample Matrix Spike Duplicate
1.96 m9/L
1.98 mg/L
0.030
0.010
0.030
0.010
0.030
0.010
Run:ICP2-C,100202A
100 85 115
94 85 115
Run:ICP2-C-100202A
97 70 130
99 70 130
Run:ICP2·C_100202A
96 70 130 1.2
97 70 130 2.2
0210211014:56
'02102/1015:58
0210211016:02
20
20
Qualifiers:
RL •Analyte reporting limit.
MOe·Minimum detectable concentration
.._----------
NO·Not detected at the reporting limit.
ENERGYLABORATORIES,INC.•2393Sail Creek Highway (82601)'AG.Box3258 •Casper,WY82602
TollFree 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·wwwenergylab.com
QA/QC Summary Report
Revised Date:04/26110
Client:Denison Mines USA Corp Report Date:02/05/10
Project:January 2010 Monthly Groundwater Work Order:C10010496
!Analyt~~-·-Count Result Units RL %REC Low Limit High limit RPO RPDLimit
--l
Qual i,
Method:E200.8 Batch:R128679
Sample 10:LRB ~Method Blank Run:ICPMS2-C.100118A 0111811015:41
Cadmium NO mg/l 6E-05
Manganese NO mg/L 5E-05
Nickel ND mg/L 9E-05
Uranium ND mg/L 8E-06
Sample 10:LFB ~Laboratory Fortified Blank Run:ICPMS2-C.100118A 01/18/1015:47
Cadmium 0.0521 mg/l 0.0010 10'85 115
Manganese 0.0510 mg/L 0.0010 102 85 115
Nickel 0.0525 mg/L 0.0010 105 85 115
Uranium 0.0508 mg/L 0.00030 102 85 115
Sample ID:C10010498-002BMS4 ~Sample Matrix Spike Run:lCPMS2·C.100118A 01/19/1004:37
Cadmium 0.0511 mg/L 0.010 102 70 130
Manganese 0.0493 mg/L 0.010 96 70 130
Nickel 0.0485 mg/L 0.0020 97 70 130
Uranium 0.0567 mg/L 0.00030 104 70 130
Sample10:C10010498-002BMSD ~Sample Matrix Spike Duplicate Run:ICPMS2-C.100118A 01/19/1004:43
Cadmium 0.0515 mg/L 0.010 103 70 130 0.8 20
Manganese 0.0489 mg/L 0.010 95 70 130 0.8 20
Nickel 0.0492 mg/L 0.0020 98 70 130 1.2 20
Uranium 0.0568 mg/L 0.00030 104 70 130 0.2 20
ND ~Not detected at the reporting limit.
Qualifiers:
RL •Analyte reporting limit.
MDe .Minimum delectable concentration
.--"~~----_._.-._----.-------
ENERGYLABORATORIES,INC.•2393 Sail Creek Highway (82601)'Po.Box 3258 •Casper,WY82602
lOllFree 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·wwwenergylab.com
Client:Denison Mines USA Corp
Project:January 2010 Monthly Groundwater
QA/QC Summary Report Revised Date:04/26/10
Report Date:02/05/10
Work Order:C10010496
~~Iyte ---~.~,-..
Count Result Units RL %REC Low Limit High limit RPD RPOLimit Qual
Batch:GA·0292
0112611012:48
U
Run:BERTHOLD 770-1.100122A
pGj/L
pCilL
pCilL
~Method Blank
0.3
0.4
0.6
Method:E900.1
Sample 10:MB-GA-0292
Gross Alpha minus Rn &U
Gross Alpha minus Rn &UPrecision (±)
Gross Alpha minus Rn & UMOe
Sample 10:LCS-GA-0292 Laboratory Control Sample Run:BERTHOLD 770-1·100122A 01/2611012:48
Gross Alpha minus Rn &U 26.7pCi1L 100 70 130
Sample 10:C1 001 0496-004BMS Sample Matrix Spike Run:BERTHOLD 770-1·100122A 01126/1015:23
Gross Alpha minus Rn &U 29.0pCi1L 105 70 130
Sample 10:C10010496-004BMSD Sample Matrix Spike Duplicate Run:BERTHOLD 770-1 ·100122A 0112611015:23
Gross Alpha minus Rn & U 28.6pCill 104 70 130 1.4 23.4
Qualifiers:
RL w Analyte reporting limit.
MOe -Minimum detectable concentration
~~~--~---~----~----"'-"-~~-
NO ~Not detected at the reporting limit.
U -Not detected at minimum detectable concentration
ENERGYLABORATORIES,INC.•2393 Sail CreekHighway (82601)•P.0.Box 3258 •Casper,WY82602
TollFree 888.235.0515 •301.235.0515 •Fax [phone] •[e-mail]·www.energylab.com
Client:Denison Mines USA Corp
Project:January 2010 Monthly Groundwater
QAIQC Summary Report Revised Date:04/26/10
Report Date:02/05/10
Work Order:C10010496
------_.._.-....__._---.,--------,_.._---Qua-I-~'IAnalyteCountResultUnitsRL%REC Low Limit High Urnit RPO RPDUmit
Method:$WB260B Batch:R128680
Sample 10:18.Jan.10_LCS_3 1.§Laboratory Control Sample Run:GCMS2_100118A 01/1811008:06
Acetone 120 ug/L 20 119 70 130
Benzene 11 ug/L 1.0 106 70 130
Carbon tetrachloride 10 ug/L 1.0 105 70 130
Chloroform 10 uglL 1.0 103 70 130
Chloromethane 10 ug/L 1.0 102 70 130
m+p.Xylenes 21 ug/L 1.0 106 70 130
Methyl ethyl ketone 120 uglL 20 121 70 130
Methylene chloride 11 uglL 1.0 107 70 130
Naphthalene 12 ug/L 1.0 115 70 130
a-Xylene 11 ug/L 1.0 106 70 130
Toluene 11 uglL 1.0 110 70 130
Xylenes,Total 32 ug/L 1.0 106 70 130
Surf;1,2·Dichlorobenzene·d4 1.0 111 80 120
Sun:Oibromofluoromethane 1.0 106 70 130
SUff:p~8romofluorobenzene 1.0 102 80 130
Surr:Toluene-dB 1.0 110 80 120
Sample 10:18·Jan·10_MBLK_6 16 Method Blank Run:GCMS2_100118A 01118/1011:55
Acetone ND ug/L 20
Benzene NO ug/L 1.0
Carbon tetrachloride ND ug/L 1.0
Chloroform NO uglL 1.0
Chloromethane ND ug/L 1.0
m+p-Xylenes NO ug/L 1.0
Methyl ethyl ketone ND ug/L 20
Methylene chloride ND ug/L 1.0
Naphthalene ND uglL 1.0
a-Xylene NO ugiL 1.0
Toluene ND ug/L 1.0
Xylenes,Total ND ug/L 1.0
Surf;1,2-Dichlorobenzene-d4 1.0 110 80 120
Surr:Dibromofluoromethane 1.0 104 70 130
Surf;p~8romofluorobenzene 1.0 108 80 120
Surf:Toluene·d8 1.0 105 80 120
Sample ID:C10010505·005HMS 1§.Sample Matrix Spike Run:GCMS2_100118A 01118/1019:28
Acetone 2400 ug/L 400 119 70 130
Benzene 210 ug/L 20 106 70 130
Carbon tetrachloride 200 ug/L 20 102 70 130
Chloroform 220 ug/L 20 108 70 130
Chloromethane 230 ug/L 20 116 70 130
m+p-Xylenes 430 ug/L 20 108 70 130
Methyl ethyl ketone 2400 ugfL 400 119 70 130
Methylene chloride 240 ug/L 20 120 70 130
Naphthalene 180 ugfL 20 91 70 130
o~XyJene 220 ug/L 20 108 70 130
_._---~--._,,----...~._--.~---_._.--.-----,...~-_._._----
Qualifiers:
RL .Analyte reporting limit.NO ~Not detected at the reporting limit.
MOe·Minimum detectable concentraflon
ENERGYLABORATORIES,INC••2393 Sail Creek Highway (82601)•Po.Box3258 •Casper,WY82602
Toll Free 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·wwwenergylab.com
Client:Denison Mines USA Corp
Project:January 2010 Monthly Groundwater
QA/QC Summary Report Revised Date:04/26/10
Report Date:02105110
Work Order:C10010496
1Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method:SW8260B Batch:R128680
Sample ID:C10010505.005HMS 1&Sample Matrix Spike Run:GCMS2_100118A 01/18/1019:28
Toluene 220 ugfL 20 108 70 130
XyJenes,Total 650 ug/L 20 108 70 130
Surf:1,2·Dichlorobenzene-<l4 20 112 80 120
Surf:Dibromof!uoromethane 20 111 70 130
Surf;p~Bromofluorobenzene 20 99 80 120
Surr:Toluene-d8 20 110 80 120
Sample 10:C10010505-005HMSD .1§Sample Matrix Spike Duplicate Run:GCMS2-100118A 01/18/1020:03
Acetone 2500 ug/L 400 124 70 130 3.9 20
Benzene 200 ug/L 20 102 70 130 3.5 20
Carbon tetrachloride 200 ug/L 20 101 70 130 0.4 20
Chloroform 210 ug/L 20 106 70 130 1.9 20
Chloromethane 220 ug/L 20 109 70 130 6 20
m+p-XyJenes 410 ug/L 20 102 70 130 6.3 20
Methyl ethyl ketone 2400 ug/L 400 122 70 130 3 20
Methylene chloride 230 ug/L 20 117 70 130 2.4 20
Naphthalene 230 ug/L 20 117 70 130 25 20 R
o·Xylene 200 ug/L 20 102 70 130 5.3 20
Toluene 210 ug/L 20 103 70 130 4.2 20
Xylenes,Total 610 ug/L 20 102 70 130 6 20
Surr:1,2~Ojchlorobenzene-d4 20 109 80 120 0 10
Surr;Dibromofluoromethane 20 116 70 130 0 10
Surr:p-Bromofluorobenzene 20 105 80 120 0 10
Surr:Toluene..(jB 20 110 80 120 0 10
Sample 10~19..Jan-10_LCS_3 §.Laboratory Control Sample Run:GCMS2_100118A 01/19/1011:40
Chloroform 12 ug/L 1.0 121 70 130
Surr:1,2·0ichlorobenzene·d4 1.0 114 80 120
Surr;Dibromofluoromelhane 1.0 114 70 130
Surr:p·Bromofluorobenzene 1.0 97 80 130
Surr:Toluene-dB 1.0 10B 80 120
Sample 10:19..Jan~10_MBLK_6 §.Method Blank Run:GCMS2_100118A 01/19/1013:25
Chloroform ND ug/L 1.0
Surr:1,2·0ichlorobenzene·d4 1.0 112 80 120
Surr:Dibromofluoromelhane 1.0 10B 70 130
Surr:p·8romofluorobenzene 1.0 106 80 120
Surr:Toluene-d8 1.0 106 80 120
Sample 10:C10010537~012BMS §.Sample Matrix Spike Run:GCMS2_100118A 01/19/1018:41
Chloroform 12 ug/L 1.0 116 70 130
Surr:1,2·Dichlorobenzene·d4 1.0 116 80 120
Surr:Dibromofluoromethane 1.0 11 B 70 130
Surr:p-Bromofluorobenzene 1.0 9B 80 120
Surr;Toluene-d8 1.0 109 80 120
~..._._,--_.._._-......_-_..._---._..__.._--~..._._._--------_.".
Qualifiers:
RL -Analyte reporting limit.NO -Not detected at the reporting limit.
MOC ~Mmimum detectable concentration R •RPD exceeds advisory limit.
ENERGYLABORATORIES,INC.·2393Sail Creek HliJhway(82601)'Po.80x3258 .Casper,WY 82602
Toll Free 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·www.energylab.com
Client:Denison Mines USA Corp
Project:January 2010 Monthly Groundwater
QA/QC Summary Report
Revised Date:04/26/10
Report Date:02/05/10
Work Order:C10010496
Analyte Count Result Units RL %REC Low Limit High Limit
....'1
RPD RPDLlmit Qual
Method:SW8260B
Sample ID:C10010537·012BMSD
Chloroform
Surr:1,2~Djchrorobenzene·d4
Sun:Dibromofluoromethane
Surf:p-Bromofluorobenzene
Sure Toluene-dB
§.Sample Matrix Spike Duplicate
11 uglL 1.0
1.0
1.0
1.0
1.0
Run:GCMS2_100118A
114 70 130
113 80 120
119 70 130
102 80 120
109 80 120
1.7
o
o
o
o
Batch:R128680
01/19/1019:15
20
10
10
10
10
Qualifiers:
RL -Analyte reporting limit.
MOe -Minimum detectable concentration
NO ~Not detected at the reporting limit.
Energy Laboratories Inc
Workorder Receipt Checklist
Denison Mines USA Corp
Login completed by:Corinne Wagner
Reviewed by:BL2000\kschroeder
Reviewed Date:1/19/2010
IIIIIIIIIIII~IIIIII~IIIII~IIIIIIIIIII~IIIIIIIIIIIII
C10010496
Date Received:1/15/2010
Received by:al
Carrier name:Fed Ex
Shipping container/coolerin good condition?Yes [{]
Custodyseals intacton shipping container/cooler?Yes [{]
Custody seals inlact on sample bottles?Yes 0
Chain ofcustody present?Ves 0"
Chain ofcustody signed when relinquished and received?Yes 50
Chain ofcustodyagrees with sample labels?Yes 0"
Samples in propercontainer/botUe?Ves 0"
Sample containers inlact?Ves (21
Sufficient sample volume for indicated lest?Yes 0
All samples received within holding time?Ves 0'
ConlainerfTemp Blank temperature:zoe On Ice
Water-VOA vials have zero headspace?Yes 0"
Water -pH acceptable upon receipt?Yes 0"
Contact and CorrectiveAction Comments:
None
No D
No D
N°D
No D
No D
No D
No D
No D
No D
No D
No D
No D
Not Present 0
Not Present 0
Not Present 0
NoVOA vials submitted 0
NolApplicable 0
Chain of Custody and Analytical Request Record1!i;fl[g7
ft~@.J@tlim1l4"
...................L........"I {t-,u .......<;;0 ....Ii...........,,,,U....OLIVU a~PU:::':::'UJIt::l.J
Company Name:Project Name,PWS,Permit,Etc.Sample Origin EPA/StateCompliance:DCIl~M~f\6 \S"Aft"""'\.'d.DIO Mon\\ll}G-rowJ.W"t«State:lX,Yes 0 No 0
Report Mail Address:1'0 ",ox ~O,\Contact Nalhe:PnoneiFax:Email:Sampler:(PleasePrint)
%"'n~;,,~.'-'i g.{!>11 R~""?"'\.....cr ,-\,,5 678 .;w.\""'::'o<r NolrA,,'1-
InvoiceAddress:Invoice Contact &Phone:Purchase Order:QuotefBottle Order:
S()..rilC ~e
Special Report/Formats:$:~'\1@0©m®M~§1ID •Contact Ell prior to .m~t'j ('y
0 RUSH sample submittal
<110 Vl~for charges and Cool"rlD(s);~oo;g51 :;;0 ~R scheduling -See
(Ihi/A /.-DDW D EDDIEDT(Elecuon;c Data)
.~>~~ro w !:::-Instrudion Page(l)Ci'ltJ)~I0s:=(I)OJ "RItCeI~UlrnpDpOTWIWWTPFonnat:~<t:~~l~U c U Comments:"~.'cDSlate:D LEVEL IV ~«e-8.!§iS j ~I-ro
D Other.DNELAC ~~r15 ';
''';
I-~Tr;;:>~'M~On 1C(>:fiN~(1):,;{'w~~.~~~«l-SZo.larO ~~W -e Cuslody seal ~E >1 '~~j !w ro J;,<:.k<\eA """""1.ro 1 (/)'0(f)'t,~C On Cooler f<NJ::;:.-;.iIJ ~~H Intact Y NSAMPLEIDENTIFICATIONCollectionCollectionMATRIX-"-t-C Signature IJt N(Name,Location,Interval,etc.l Date Time Match
,MI.)1\.\\.\':'-;lOI1)\\~t:,l-W 17:X ~V
2 MW ;ll,l-t.:).-')r>tD 1"'''1)L\-\.J I".')()('I.~
,MvJ 3';)..\-Q..;)DID 13X2..I-v.).'j.-{.r '/.t9.",M\l.l bL..\·O·~ID ,,,::2.")\-1.<1 .'f.'f.-y.'f.1 -I!5
6 ~tlcDl r-J VlI'
7 ~,~09~
"!""
Custody Re7~tedby(prill£"oatemm;11//)IE{()O 7Z"'L2/RIlCeMld by (prilt}:Dalernme:Signature:/,a..,",ell ;'/112,Record Rel,nqui~edby (prinl~DaleITrne:/9~'''''''Rece-ived by (print):Oatemmc:Si9nature:
MUST be
Signed Samnle DisDosal:Return toClient:Lab Disposal:
t;s.e.v:i 'Y<.G~;wry:V"~t7:Jh 9Js;;;m~~
In certain circumstances.samples submitted to Energy Laboralories,Inc.may be subcontracted to other certified laboratories in orderto complete the analysis requested.
This serves as notice of this possibility.All sub-contract data will be clearly notated on your analytical report.
Visit ourweb site at www.energylab.com for additional information,downloadable fee schedule,forms,and links.
'"ENERGYLABORATORIE5,INC.•2393SaIICreekHighway(82601j'PO Box3258'Casper WY82602;l£i'I1 Toil Free 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·WWOi(energylab.com
ANALYTICAL SUMMARY REPORT
May 04,2010
Denison Mines USA Corp
6425 S Hwy 191
Blanding,UT 84511
Workorder No.:C10010826 Quote 10:C1640 -pac Wells /Monthly Groundwater Sampling
Project Name:1st Quarter Groundwater 2010
Energy Laboratories,Inc.received the following 5 samples for Denison Mines USA Corp on 1/26/2010 for analysis,
Sample 10 Client Sample 10 Collect Date Receive Date Matrix Test
C1 001 0826-001 MW 24 01/19/1015:0501/26/10 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 vacs,Standard List
~_,~~~._..__.._._._......."..."._.._.....__~.._.._._.._._..__..__._·_._..._._...~_..~.u..~.....__.~_
C10010826-002 MW27 01/18/1012:4201/26110 Aqueous Metals by ICP/lCPMS,Dissolved
Alkalinity
QA Calculations
Cancelled Sample
Chloride
Fluoride
Nitrogen,Ammonia
Nitrogen,Nitrate +Nitrite
Gross Alpha minus Rn222 and Uranium
Sulfate
SW8260B vacs,Standard List...............__._--._.-.--_.._-----------~-_.__.__.____.__._----._-_._-~---------.-.-.--.._'".._._-----
C1 001 0826-003 MW28 01/19/1012:1901/26/10 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 vacs,Standard List
C10010826-004 MW 30
C1 001 0826-005 Trip Blank
01/20/1012:0001126/10
01/20/10 12:00 01126/10
Aqueous
Aqueous
Same As Above
SW8260B vacs,Standard List
ENERGYLABORATORIES,INC.•2393Sa/I Creek Highway (82601)•Po.Box 3258 •Casper,WY82602gS/M.'IH_TO_II_h_re_e_8_'88_,_2J_:5._,O_6_15_'_J_0_7._2J_:5._,a_6_15_'_Fi_ax_30_7._,2_3_~,_I(j,_3_9_._ca_sp_e_r_@_e_ne_r9_:J'_la_b_,c_om_._WWI!<_,_en_e_r 9_:J'_18_b_,c_om _
ANALYTICAL SUMMARY REPORT
Any exceptions or problems with the analyses are noted in the Laboratory Analytical Report,the QNQC Summary
Report,or the Case Narrative.
The results as reported relate only to the item(s)submitted for testing,
If you have any questions regarding these test results,please call.
Report Approved By:~hW 1'>ttJe..UA
Step anie D.Waldropr
Reporting Supervisor
CASE NARRATIVE
CLIENT:Denison Mines USA Corp
Project:1st Quarter Groundwater 2010
Sample Delivery Group:C10010826
L:t/!t:t .lit/ENERGYLABORATORIES,INC••2393 Sail Creek Highway(82601)•PO Box 3258 •Casper,WY82602.a1c£To//Free 888.2350515 •307.2350515 •Fax [phone] •casper@energy/ab.com·www.energy/ab.com
Revised Date: 05/04/10
Report Date:02110110
REVISED/SUPPLEMENTAL REPORT (2)
The attached analytical report has been revised from a previously submitted report due to the request by JoAnn Tischler on
April 30,2010 for the reanalysis of Uranium on sample ~001.The original reported Uranium result was high due to a
possible interference on the intrument it was analyzed on (ICP-MS Collision Cell).The sample was reanalyzed and the
Uranium result now matches historical data.
REVISED/SUPPLEMENTAL REPORT (1)
The attached anaiytical report has been revised from a preViously submitted report due to the request by JoAnn Tischier for
the following corrections:Carbonate and Bicarbonate RL changed to 1 mg/L on all samples;Iron reported by Method 200.7
on samples -001, -002, -003;D flag added to the Nitrate +Nitrite result on sample -002.
LABORATORY COMMENTS
The TDS and pH analyses were cancelled for sample MW 27,due to receiving sample past the EPA-recommended holding
time.Client was notified 1/27/10 and will submit a resample.
ORIGINAL SAMPLE SUBMITTAL(S)
All original sample submittals have been returned with the data package.
SAMPLE TEMPERATURE COMPLIANCE:4'C (±2'C)
Temperature of samples received may not be considered properly preselVed 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 a drinking water method for low TDS waters.Data provided by
this method for non potable waters should be viewed as inconsistent.
SOiUSOLID SAMPLES
All samples reported on an as received basis unless othelWise indicated.
ATRA2INE,SiMA2INE AND PCB ANALYSIS
Data for PCBs,Atrazine and Simazine are reported from EPA 525.2.PCB data reported by ELI 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 selVice.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-OOH NELAC:E87641,Radiochemical E871 017;California:02118CA;
Oregon:WY200001:Utah:3072350515;Virginia:00057;Washington:C1903
ISO 17025 DISCLAIMER:
The resulls ofthis Analytical Report relate only to the items submitted for analysis.
ENERGY LABORATORIES,INC.-CASPER,WY 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 Ell's certification coverage by visiting Vo/WW.energylab.com
Ell appreciates the opportunity to provide you with this analytical service.For additional information and services visit our
web page W'MV.energylab.com.
ENERGYLABORATORIES,INC.•2393 Sail Creek Highway (8260 I)•P.0.Box 3258 •Casper,WV82602
TiJI/Free 888.235.0515 •307.235.0515 •Fax [phone] •casper@energy/ab.com·www.energy/ab.comSfI--------------------------------
Client:
Project:
Denison Mines USA Corp
1st Quarter Groundwater 201 0
QA/QC Summary Report Revised Date:05/04/10
Report Date:02/10/10
Work Order:C10010826
:Analyte Count Result Units RL %REC Low Limit High Limit RPD RPOLlmit Qual ---1
I
Method:A2320 B
Sample 10:MBLK
Alkalinity,Total as CaC03
Carbonate as C03
Bicarbonate as HC03
;!Method Blank
3
ND
3
mg/L
mg/L
mg/L
Run:MANTECH_100127A
Batch:R128990
01/27/1010:08
Sample 10:LCS1
Alkalinity,Total as CaC03
Sample 10:Le$
Alkalinity,Total as CaC03
Sample 10:C10010823-001AMS
Alkalinity,Total as CaC03
Sample 10:Cl0010823·001AMSO
Alkalinity,Total as CaC03
Laboratory Control Sample
196 mg/L
Laboratory Control Sample
55.5 mg/L
Sample Matrix Spike
300 mg/L
Sample Matrix Spike Duplicate
303 mg/L
Run:MANTECH_100127A 01/27/1010:25
5.0 97 90 110
Run:MANTECH_100127A 01/27/1010:35
5.0 105 90 110
Run:MANTECH_100127A 0112711 0 11:28
5.0 93 80 120
Run:MANTECH_100127A 0112711011:38
5.0 95 80 120 0.8 20
Qualifiers:
RL -Analyte reporting limit.
MOe·Minimum detectable concentration
ND -Not detected at the reporting limit.
ENERGYLABORATORIES,INC.•2393 SaIl Creek Highway(82601)•P.O Box 3258 •Casper,WY82602
TollFree 688235.0515 •307.235.0515·Fax [phone] •[e-mail]·wwv.<energylab.com
Client:Denison Mines USA Corp
Project:15t Quarter Groundwater201 0
QA/QC Summary Report
Revised Date:05/04/10
Report Date:02/10/10
Work Order:Cl0010826
.."......_.-~._-----
Analyte Count Result Units RL %REC Low Limit High limit RPD RPDLlmit Qual
Method:A2540 C Batch:100126_1_SLDS-TDS-W
Sample 10:MBLK1_100126 Method Blank Run:BAL-1_100126A 01/26/1015:46
Solids,Total Dissolved TDS @ 180 C ND mg/L 10
SamplelD:LCS1_100126 Laboratory Control Sample Run:BAL·1-100126A 01/26/10 15:47
Solids,Talai Dissolved TDS @ 180 C 977 mg/L 10 98 90 110
SamplelD:C10010748·001AMS Sample Matrix Spike Run:BAL-1 _100126A 01/26/1015:49
Solids,Total Dissolved TDS@ 180 C 2150 mg/L 10 100 90 110
Sample 10:Cl0010748-001AMSD Sample Matrix Spike Duplicate Run:BAL-1 100126A 01/26/1015:49
Solids,Tata!Dissolved TDS @ 180 C 2190 mg/L 10 103 90 110 1.5 10
Qualifiers:
RL ~Analyte reporting limit.
MOe -Minimum detectable concentration
NO •Not detected at the reporting limit.
ENERGYLABORATORIES,INC••2393Sail Creek Higllway(82601)'Po.Box3258 •Casper,WY82602
Toll Free 888.2350515 •307.235.0515 •Fax [phone] •[e-mail]·wwwenergylab.com
Client:Denison Mines USA Corp
Project:1st Quarter Groundwater 2010
QA/QC Summary Report Revised Date:05/04/10
Report Date:02/10/10
Work Order:C10010826
Count Result Units RL %REC Low Umit High Limit RPO RPDLimit Qual
Method:A4500·CI B
Sample 10:MBLK9·100127
Chloride
Method Blank
NO mg/L
Run:TITRATlON_l00127A
0.4
Batch:100127-CL·TTR-W
01/27/1010:53
Sample 10:C10010826-003AMS
Chloride
Sample 10:C10010826·003AMSO
Chloride
Sample 10:LCS35·100127
Chloride
Sample Matrix Spike
459 mg/L
Sample Matrix Spike Duplicate
459 mg/L
Laboratory Control Sample
3530 mg/L
Run:TITRATlON_100127A 01/27/1014:14
1.0 101 90 110
Run:TITRATION-100127A 01/27/1014:16
1.0 101 90 110 0 10
Run:TITRATION_100127A 01/27/1014:22
1.0 100 90 110
Qualifiers:
RL ~Analyte reporting limit.
MOe·Minimum detectable concentration
NO •Not detected at the reporting limit.
ENERGYLABORATORIES,INC.•2393Sail CreekHighway (82601)'Ro.Box3258 •Casper,WY82602
Toll Free 888.235.0515 •307.235.0515 •Fax [phone] •[e-mail]·WWH<energylab.com
QA/QC Summary Report
Client:Denison Mines USA Corp
Project:151 Quarter Groundwaler 2010
Revised Date:05/04/10
Report Date:02/10/10
Work Order:C10010826
Sample Matrix Spike
1.69 m91L
Laboratory Control Sample
1.02 mg/L
Sample Matrix Spike Duplicate
1.69 mg/L
IRL%REC Low Limit High Limit RPD RPDUmit Qual I
Batch:R129048
Run:MANTECH_l00128A 01/28/1011;45
0.05
Run:MANTECH_100128A 01/28/1011;48
0.10 102 90 110
Run:MANTECH_l00128A 01/2811012:22
0.10 98 80 120
Run:MANTECH-100128A 01/28/1012:25
0.10 98 80 120 0 10
mg/L
UnitsResult
Method Blank
ND
Count
Sample 10:LeS
Fluoride
Method:A4500·F C
Sample 10:MBLK
Fluoride
Sample ID:C10010826~002AMS
Fluoride
Sample ID:C10010826·002AMSD
Fluoride
Qualifiers:
RL •Analyte reporting limit.
MDe v Minimum detectable concentration
NO -Not detected at the reporting limit.
ENERGYLABORATORIES,INC.,2393Salt Creek Highway(82601)'PO Box3258 •Casper,WY826021I!SfI;f~'8_7iJ_II_A_re_e_~_8_8_.2._~_5_.o._5_15_'_3_0_7._2._'35_,_O 5_1_5_'_Fax__30_7._.2._'3_~_,I_6._'39_'_C_a_sp_e_r_@_e_ne_r9._'I'_la_b_.ca_m_'_WWlY.__,_en_e_r9._'I'_la_b_,c_o_m _
Client:Denison Mines USA Corp
Project:1st Quarter Groundwater 201 0
QA/QC Summary Report Revised Date:05/04/10
Report Date:02/10/10
Work Order:C10010826
IAnalyto Count Result Units RL %REC Low Limit High Limit
_.....--..._~---_.-..- -------..-."~""--'-'--l
RPD RPDLlmit Qual i
I
Method:A4500·H B
Sample 10:lCV1_100126_1
pH
Initial Calibration Verification Standard
6.84 s.u.0.010 100 98
Analytical Run:ORION555A-2_100126A
01/26/1012:07
102
Batch:100126_1_PH-W_555A-2
Run:ORION555A-2_'00'26A 01/26/1012:35
o 10
Method:A4500~H B
SamplelD:Cl00l0826-002ADUP
pH
SamplelD:Cl0010831-001ADUP
pH
Sample Duplicate
7.49 s.u.0.010
Sample Duplicate
7.74 s.u.0.010
Run:ORION555A-2_100126A
o
01/26/1012:46
10
Qualifiers:
RL -Analyte reporting limit.
MDe -Minimum detectable concentration
NO .Not detected at the reporting limit.
/'ENERGYLABORATORIES,INC.•2393Sail Creek Highway(8260I)•P.0 Box 3258 .Casper,WY82602Jj;'ltffnfJif TollFree 888.23[;0515 •307.235.0515 •Fax [phone] •[e-mail]·wwwenergylab.com
Client:
Project:
Denison Mines USA Corp
1st Quarter Groundwater 2010
QAlQC Summary Report
Revised Date:05/04/10
Report Date:02110110
Work Order:C10010826
Count
Sample Matrix Spike
4.36 mg/L
Laboratory Control Sample
20.4 mg/L
Sample Matrix Spike Duplicate
4.27 mg/L
.._......_._.._---~----.._...........................__._--_...-..__..._.......__....__.._--_._,
%REC Low Limit ;RL High Limit RPO RPOLImit Qual i
Balch:R129303
Run:TECHNICON-100204A 02/04/1010:39
0.02
Run:TECHNICON-100204A 02/04/1010:40
0.20 102 80 120
Run:TECHNICON_l00204A 02/04/1010:56
0.050 99 80 120
Run:TECHNICON-100204A 02/04/1010:58
0.050 94 80 120 2.1 20
mg/L
UnitsResult
Method Blank
NO
SamplelD:C10010829·001EMSO
Nitrogen,Ammonia as N
Sample 10:LCS·2
Nitrogen,Ammonia as N
Sample 10:C10010829·001EMS
Nitrogen,Ammonia as N
Method:A4500·NH3 G
Sample 10:MBLK·1
Nitrogen,Ammonia as N
IA~l~e,
Qualifiers:
RL .Analyte reporting limit.
MOC -Minimum detectable concentration
NO .Not detected at the reporting limit.
I.ENERGYLABORATORIE5,INC.·2393SaIICreekHighway(82601j·P.O Box3258·Casper,WY82602/IIIIiiI?if_71_Oh_1A_"_ee_8B_9_,2_,~_~_,IJ,_'5_15_'_:J,_O_7._2._'35._,_05_1_5_'_A_W(_30_7._,2._'3_~_,I_6._'39_._c_a_sp_e_r_@_e_n_e"_gy:_j_ab_,_co_m_.www__,_en_e_r{/._!I'_la_b_,C_o_m _
Client:Denison Mines USA Corp
Project:151 Quarter Groundwater 201 0
QA/QC Summary Report Revised Date:05104110
Report Date:02110110
Work Order:C10010826
Anatyte Count Result Units RL "/GREC Low Limit High Limit RPO RPDLlmlt Qual
Method:A4500·S04 E Batch:100201_'_S04·TURB·W
SamplelD:LCS·'_'0020'Laboratory Control Sample Run:TURB·2_'00201A 02/01/1015:16
SUlfate 4880 mg/L 59 102 90 110
SamplelD:MBLK·'_'0020'Method Blank Run:TURB·2_'0020'A 02/01/1015:20
Sulfate ND mg/L 0,6
SamplelD:C10010509·004BMS Sample Matrix Spike Run:TURB·2_'00201A 02/01/1015:45
SUlfate 3620 mg/L 59 102 90 110
SamplelD:C10010509·004BMSD Sample Matrix Spike Duplicate Run:TURB-2_'0020'A 02/01/1015:47
Sulfate 3630 mg/L 59 102 90 110 0.3 10
Method:A4500·S04 E Batch:100208 1 S04·TURB-W- -
SamplelD:LCS·'_'00208 Laboratory Control Sample Run:TURB·2_'00208A 02/08/1015:19
Sulfate 4920 mg/L 59 103 90 110
SamplelD:MBLK·1_'00208 Method Blank Run:TURB-2_'00208A 02108/1015:20
Sulfate ND mg/L 0,6
SamplelD:C10020152·001AMS Sample Matrix Spike Run:TURB·2_'00208A 02/08/10 16:12
Sulfate 47.1 mg/L 1.0 104 90 110
SamplelD:C10020152·001AMSD Sample Matrix Spike Duplicate Run:TURB-2_100208A 02/08/1016:23
Sulfate 47.3 mg/L 1.0 105 90 110 0.4 10
Qualifiers:
RL M Analyle reporting Jimit.
MOe ~Minimum detectable concentration
NO ~Not detected at the reporting limit.
lii;.~ENERGYLABORATORIES,INC••2393Sail Creek Highway (82601)•Po.Box 3258 •Casper,WV 82602~_Ti._Oj_rFi_"_e_e_88_~_.2._:1_:5._.0_6_15_'_3_0_7._.2._'35._._05_1_5_'_A_"'X_30_7._.2._'3_4_.1_S_'39_'_C_8_s p_e_r_@_e_ne_"_-gY_/a_b_.c_o_m_._www.__._sn_e_r!l._l'_/a_b_.c_o_m _
Client:
Project:
Denison Mines USA Corp
1st Quarter Groundwater 2010
QA/QC Summary Report Revised Date:05104110
Report Date:02110/10
Work Order:C10010826
Analyte Count Result Units
Method:E200.7
Sample 10:MB-100205A Q Method Blank
Calcium ND mg/L
Iron 0.002 mglL
Magnesium ND mglL
Potassium ND mglL
Sodium ND mglL
Sample 10:LFB·100205A Q Laboratory Fortified Blank
Calcium 50.3 mglL
Iron 0.962 mg/L
Magnesium 47.9 mg/L
Potassium 47.5 mg/L
Sodium 46.2 mg/L
Sample 10:MB·25142 !!Method Blank
Calcium ND mglL
Iron ND mg/L
Magnesium ND mglL
Potassium ND mg/L
Sodium ND mglL
Sample ID:C09120511·002GMS2 Q Sample Matrix Spike
Calcium 127 mg/L
Iron 1.98 mg/L
Magnesium 104 mg/L
Potassium 89.3 mglL
Sodium 113 mglL
SamplelD:C09120511·002GMSD §Sample Matrix Spike Duplicate
Calcium 127 mg/L
Iron 1.99 mglL
Magnesium 104 mglL
Potassium 88.9 mg/L
Sodium 112 mg/L
Sample 10:C100109418 OO1BMS2 Q Sample Matrix Spike
Calcium 152 mg/L
Iron 1.94 mg/L
Magnesium 110 mg/L
Potassium 85.1 mglL
Sodium 108 mg/L
SamplelD:C10010941·001BMSD §Sample Matrix Spike Duplicate
Calcium 154 mg/L
Iron 1.94 mg/L
Magnesium 111 mg/L
Potassium 83.5 mg/L
Sodium 111 mg/L
RL %REC Low Limit High Limit
Run:ICP2·C_l00205A
0.2
0.002
0.05
0.02
0.3
Run:ICP2-C_100205A
0.50 101 85 115
0.030 96 85 115
0.50 96 85 115
0.50 95 85 115
0.50 92 85 115
Run:ICP2·C_100205A
0.4
0.003
0.1
0.04
0.6
Run:ICP2·C_l00205A
1.0 101 70 130
0.030 97 70 130
1.0 96 70 130
1.0 85 70 130
1.0 97 70 130
Run:ICP2·C_l00205A
1.0 100 70 130
0.030 97 70 130
1.0 97 70 130
1.0 64 70 130
1.0 96 70 130
Run:ICP2·C_l00205A
1.0 101 70 130
0.030 95 70 130
1.0 100 70 130
1.0 62 70 130
1.0 94 70 130
Run:ICP2·C_100205A
1.0 104 70 130
0.030 95 ·70 130
1.0 101 70 130
1.0 60 70 130
1.0 97 70 130
RPD RPDLimit Qual
Batch:R129361
0210511009:21
0210511009:25
0210511013:05
0210511013:13
0210511013:17
0.5 20
0.8 20
0.6 20
0.4 20
1.3 20
0210511014:27
02/05/1014:31
1.6 20
0.2 20
0.4 20
1.9 20
3 20
Qualifiers:
RL -Analyte reporting limit.
MDC .Minimum detectable concentration
NO .Not detected at the reporting limit.
/j -;}i?jf ENERG YLABORATORIES,INC.•2393 Sail Creek Highway (8260/j,•PO Box3258 •Casper,WY82602JIA,7011Free 888.235.0515 •307.235.0515 •Fax [phone] •casper energylab.com·wwwenergylab.com
Client:Denison Mines USA Corp
Project:1st Quarter Groundwater 2010
QA/QC Summary Report Revised Date:05/04/10
Report Date:02/10110
Work Order:C10010826
Analyte Count Result Units RL %REC lowLimit High Limit RPO RPDLlmit Qual
Method:E200.6 Batch:R129112
Sample 10:LRB 18 Method Blank Run:ICPMS2-C_l00129A 01/2911012:49
Arsenic NO mg/L 0.0003
Beryllium NO mg/L 6E-05
Cadmium NO mg/L 6E-05
Chromium 0.00010 mg/L 8E-05
Cobalt NO mg/L 0.00010
Copper NO mg/L 4E-05
Lead NO mg/L 2E-05
Manganese NO mglL 5E-05
Mercury NO mglL 4E-05
Molybdenum NO mg/L 4E-05
Nickel NO mg/L 9E-05
Selenium NO mg/L 0.001
Sillier 7E-05 mg/L 2E-05
Thallium NO mg/L 3E-05
Tin 0.0002 mg/L 0.0001
Uranium NO mg/L 8E-06
Vanadium NO mglL 9E-05
Zinc 0.0008 mglL BE-OS
Sample 10:LFB 1!!Laboratory Fortified Blank Run;ICPMS2-C_l00129A 01/29/1012:58
Arsenic 0.0508 mg/L 0.0010 102 85 115
Beryllium 0.0537 mg/L 0.0010 107 85 115
Cadmium 0.0505 mg/L 0.0010 101 85 115
Chromium 0.0521 mg/L 0.0010 104 85 115
Cobalt 0.0526 mg/L 0.0010 105 85 115
Copper 0.0515 mg/L 0.0010 103 85 115
Lead 0.0507 mg/L 0.0010 101 85 115
Manganese 0.0522 mg/L 0.0010 104 85 115
Mercury 0.00506 mg/L 0.0010 101 85 115
Molybdenum 0.0504 mg/L 0.0010 101 85 115
Nickel 0.0506 mg/L 0.0010 96 OS 115
Selenium 0.0508 mglL 0.0014 100 85 115
Silver 0.0198 mg/L 0.0010 99 85 115
Thallium 0.0495 mgfL 0.0010 99 85 115
Tin 0.0501 mg/L 0.0010 100 85 115
Uranium 0.0490 mg/L 0.00030 98 85 115
Vanadium 0.0514 mg/L 0.0010 103 85 115
Zinc 0.0523 mg/L 0.0010 103 85 115
Sample 10:Cl00l0913-007BMS4 18 Sample Matrix Spike Run:ICPMS2-C_l00129A 01/29/1022:06
Arsenic 0.0519 mg/L 0.0010 102 70 130
Beryllium 0.0472 mg/L 0.010 94 70 130
Cadmium 0.0518 mg/L 0.010 104 70 130
Chromium 0.0444 mg/L 0.0010 09 70 130
Cobalt 0.0444 m9/L 0.010 88 70 130
Copper 0.0508 mg/L 0.010 98 70 130
....._-----_._,----_.._.....__.._..--~~~._-"'_._..".._-----.------.-._---_._.--_._---_....--_..---_..__.....__._-
Qualifiers:
RL .Analyte reporting limit.NO .Not detected at the reporting limit.
MDC -Minimum detectable concentration
ENERGYLABORATORIES,INC.•2393SailCreek Highway (82601)•P.O,Box 3258 •Casper,WY82602
TiJII Free 888.2350515 •301.2350515 •Fax 301.234,1839 •[e-mail]·www.energylab.com-lj{(---------------------------
QA/QC Summary Report
Revised Date:05/04/10
Client:Denison Mines USA Corp Report Date:02/10/10
Project:151 Quarter Groundwater 2010 Work Order:C10010826
~'.."......•__.__....-----..........."'"..........-_.---_.._-_.._._...__.._-----_.._-----~........__.._---_.-
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual
Method:E200.8 Batch:R129112
Sample 10:C10010913-007BMS4 1Jl Sample Matrix Spike Run:ICPMS2,C_l00129A 01/29/1022:06
Lead 0.0600 mg/L 0,050 102 70 130
Manganese 0.0469 mg/L 0.010 88 70 130
Mercury 0.00505 mg/L 0,0010 101 70 130
Molybdenum 0.0560 mg/L 0.0010 106 70 130
Nickel 0.0558 mg/L 0,050 97 70 130
Selenium 0,0531 mg/L 0,0010 100 70 130
Silver 0,0178 mg/L 0.010 89 70 130
Thallium 0.0507 mg/L 0.0010 101 70 130
Tin 0.0513 mg/L 0,0010 102 70 130
Uranium 0,0941 mg/L 0.00030 107 70 130
Vanadium 0,0468 mg/L 0,0010 92 70 130
Zinc 0,0532 mg/L 0.010 98 70 130
Sample 10:C10010913·007BMSD 18 Sample Matrix Spike Duplicate Run:ICPMS2-C-100129A 01/2911022:13
Arsenic 0,0515 mg/L 0,0010 101 70 130 0.8 20
Beryllium 0.0483 mg/L 0,010 97 70 130 2,3 20
Cadmium 0,0504 mg/L 0,010 101 70 130 2,8 20
Chromium 0.0429 mg/L 0.0010 86 70 130 3.4 20
Cobalt 0,0422 mg/L 0,010 84 70 130 5 20
Copper 0.0489 mg/L 0,010 95 70 130 3.7 20
Lead 0,0600 mg/L 0.050 102 70 130 0.1 20
Manganese 0.0458 mg/L 0010 88 70 130 2.3 20
Mercury 0,00524 mglL 0,0010 105 70 130 3,7 20
Molybdenum 0,0536 mglL 0.0010 101 70 130 4,5 20
Nickel 0,0529 mg/L 0.050 91 70 130 5,5 20
Selenium 0,0527 mg/L 0.0010 99 70 130 0,7 20
Silver 0,0163 mg/L 0,010 82 70 130 8.6 20
Thallium 0,0509 mg/L 0.0010 102 70 130 0,5 20
Tin 0,0519 mg/L 0,0010 103 70 130 1,1 20
Uranium 0.0956 mg/L 0,00030 110 70 130 1,6 20
Vanadium 0,0459 mg/L 0.0010 90 70 130 2 20
Zinc 0,0531 mg/L 0.010 98 70 130 0.2 20
Method:E200,8 Batch:R132274
Sample 10:LRB Method Blank Run:ICPMS2-C_l00503A 05/0311011.47
Uranium ND mg/L 8E,06
Sample 10:LFB Laboratory Fortified Blank Run:ICPMS2,C_l00503A 05103/1012:28
Uranium 0.0536 mg/L 0.00030 107 85 115
Sample 10:C10041011·001BMS4 Sample Matrix Spike Run:ICPMS2,C_l00503A 05/03/1013:42
Uranium 1,06 mgfL 0,00030 126 70 130
Sample to:C10041011·001BMSO Sample Matrix Spike Duplicate Run:ICPMS2-C-100503A 05/0311013:49
Uranium 1,05 mg/L 0.00030 123 70 130 0,8 20
Qualifiers:
RL -Analyte reporting limit.
MOe·Minimum detectable concentration
NO ~Not detected at the reporting limit.
~!J'ENERGYLABORATORIES,INC••2393SaliCreekHigllw8Y (82601)'Po.Box 3258 •Casper.WY82602~_7i_oj_r,"_re_e_8_'8_'8._2._'35_.0_5_15_'_3_0_7._23_'5_.0_'S_1s_._,"_ax_30_7._.2._'3_4._1_63_9_'_ca_s_'P_er_@_e_n_e"_'[J!,_18_b_.c_o_m_'_WWll<__.e_ne_'9_:i'_la_b_.c_om _
QA/QC Summary Report
Revised Date:05/04/10
Client:Denison Mines USA Corp Report Date:02/10/10
Project:15t Quarter Groundwater2010 WorkOrder:C10010826
- ---------_..--------_..._--'-¥-~---'-.'-~-~._--.- ---- -----_.--~_._~.~.__.__.._....
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual
Method:E200.8 Batch:R129042
Sample 10:LRB 11!Method Blank Run:ICPMS4-C_10012BA 01/28/1012:59
Arsenic NO mg/L 5E-05
Beryllium NO mg/L 6E-05
Cadmium NO mg/L 4E-05
Chromium NO mg/L 4E-05
Cobalt NO mg/L 4E·05
Copper NO mg/L 7E-05
Lead NO mg/L 2E-05
Manganese NO mg/L 3E-05
Mercury 6E-05 mg/L 4E-05
Molybdenum NO mg/L 0.0001
Nickel NO mg/L 6E-05
Selenium NO mg/L 3E-05
Silver 0.0001 mg/L 4E-05
Thallium NO mg/L 3E-05
Tin NO mg/L 0.0006
Uranium NO mg/L 3E-05
Vanadium NO mg/L 4E-05
Zinc NO mg/L 0.0002
Sample 10:LFB j!Laboratory Fortified Blank Run:ICPMS4-C_100128A 01/28/1013:04
Arsenic 0.0526 mg/L 0.0010 104 85 115
Beryllium 0.0518 mg/L 0.0010 104 85 115
Cadmium 0.0508 mg/L 0.0010 102 85 115
Chromium 0.0521 mg/L 0.0010 103 85 115
Cobalt 0.0517 mg/L 0.0010 103 85 115
Copper 0.0532 mg/L 0.0010 104 85 115
Lead 0.0511 mg/L 0.0010 101 85 115
Manganese 0.0515 mg/L 0.0010 101 85 115
Mercury 0.00509 mg/l 0.0010 102 85 115
Molybdenum 0.0499 mg/L 0.0010 100 85 115
Nickel 0.0528 mg/L 0.0010 106 85 115
Selenium 0.0526 mg/L 0.0010 105 85 115
Silver 0.0206 mg/L 0.0010 102 85 115
Thallium 0.0511 mg/L 0.0010 102 85 115
Tin 0.0493 mg/L 0.0010 99 85 115
Uranium 0.0487 mg/L 0.00030 97 85 115
Vanadium 0.0521 mg/L 0.0010 98 85 115
Zinc 0.0540 mg/L 0.0010 103 85 115
Sample ID:C10010826-Q038MS4 1!!Sample Matrix Spike Run:ICPMS4-C_100128A 01/29/1004:04
Arsenic 0.0659 mg/L 0.0010 106 70 130
Beryllium 0.0478 mg/L 0.010 95 70 130
Cadmium 0.0528 mg/L 0.010 98 70 130
Chromium 0.0530 mg/L 0.050 106 70 130
Cobalt 0.0805 mg/L 0.010 99 70 130
Copper 0.0538 mg/L 0.010 102 70 130
Qualifiers:
RL .Analyte reporting limit.
MOC -Minimum detectable concentration
ND •Not detected at the reporting limit.
ENERGYLABORATORIES,INC••2393Sail Creek Highway(82601)•1'.0 Box3258 •Casper,WY82602/ISI;f{/Jff TollFree 888.235.0515 •301235.0515 •Fax [phone] •[e-mail]·www'energylab.com
Client:
Project:
Denison Mines USA Corp
15t QuarterGroundwater201 0
QA/QC Summary Report
Revised Date:05/04/10
Report Date:02/10/10
Work Order:C10010826
RPD RPDLlmlt QualRl%REC Low Limit High limitUnitsResultCount
r"------.-~----------.-._----------------
Analyta
Method:E200.8
SamplalD:Cl0010826-003BMS4
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Tin
Uranium
Vanadium
Zinc
:1.ll Sample Matrix Spike
0.0523 mglL
1.62 mglL
0.00486 mglL
0.0516 mglL
0.0770 mg/L
0.0559 mglL
0.0117 mglL
0.0527 mglL
0.0440 mglL
0.0524 mglL
0.0534 mg/L
0.0930 mglL
0.050
0.010
0.0010
0.0010
0.050
0.0010
0.010
0.0010
0.0010
0.00030
0.0010
0.010
Run:ICPMS4-C_l00128A
104 70 130
70 130
97 70 130
102 70 130
103 70 130
106 70 130
59 70 130
104 70 130
8B 70 130
98 70 130
10B 70 130
98 70 130
Batch:R129042
0112911004:04
A
s
Sample 10:C10010826·003BMSD 18 Sample Matrix Spike Duplicate
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Tin
Uranium
Vanadium
Zinc
0.0653
0.0488
0.0529
0.0525
0.0775
0.0537
0.0515
1.59
0.00496
0.0528
0.0760
0.0550
0.0119
0.0517
0.0455
0.0491
0.0536
0.0931
mglL
mglL
mg/L
mg/L
mg/L
mg/L
mglL
mg/L
mg/L
mg/L
mg/L
mglL
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
0.0010
0.010
0.010
0.050
0.010
0.010
0.050
0.010
0.0010
0.0010
0.050
0.0010
0.010
0.0010
0.0010
0.00030
0.0010
0.010
Run:ICPMS4-C_l00128A
104 70 130
97 70 130
98 70 130
105 70 130
93 70 130
102 70 130
103 70 130
70 130
99 70 130
104 70 130
101 70 130
104 70 130
60 70 130
101 70 130
91 70 130
91 70 130
106 70 130
98 70 130
0.9
2.1
0.2
0.9
3.7
0.3
1.5
1.4
2
2.2
1.3
1.5
1.4
2
3.2
6.5
0.3
0.1
0112911004:09
20
20
20
20
20
20
20
20 A
20
20
20
20
20 S
20
20
20
20
20
Qualifiers:
RL .Analyte reporting limit.
ND -Not detected at the reporting limit.
S -Spike recovery outside of advisory limits.
A-The analyte level was greater than four times the spike level.In
accordance with the method %recovery is not calculated.
MOe·Minimum detectable concentration
/Hitlif
Rirflilinfiill'ti'
ENERGYLABORATORIES,INC.•2393SailCreekHighway(82601)•P.0 Box 3258 •Casper,WY82602
TiJIIFree 888.235.0515 •301.235.0515 •Fax [phone] •[e-mail]·www.ellergylab.com
Client:
Project:
Denison Mines USA Corp
1st QuarterGroundwater 2010
QA/QC Summary Report
Revised Date:05/04/10
Report Date:02/10/10
Work Order:C10010826
Count
Sample Matrix Spike
2.15 mg/L
Method Blank
NO mg/L
Laboratory Control Sample
2.37 mg/L
RL '%REC Low Limit High Limit RPO RPOUmit Qual
Batch:R129146
Run:TECHNICON_l00201A 02/01/1012:29
0.03
Run:TECHNICON_l00201A 02/01/1012:32
0.10 95 90 110
Run:TECHNICON_l00201A 02/0111012:47
0.10 99 90 110
Run:TECHNICON_l00201A 02/0111012:49
0.10 100 90 110 1.4 10
UnitsResult
Sample Matrix Spike Duplicate
2.18 mg/L
Method:E353.2
Sample 10:MBLK-l
Nitrogen,Nitrate+Nitrile as N
Sample 10:LCS~2
Nitrogen,Nitrate+Nitrite as N
Analyte
SamplelD:Cl0010826-0030MS
Nitrogen,Nitrate+Nitrite as N
Sample10:Cl0010826·003DMSO
Nitrogen,Nitrate+Nitrite as N
Qualifiers:
RL .Analyte reporting limit.
MOe·Minimum detectable concentration
NO v Not detected at the reporting limit.
ENERGYLASORArORIEs.INC.•2393SailCreekHighway(82601)•Po.Box3258 •Casper,WV82602
..ToIIFree888.235.0515·307.235.0515'Fax[phone]·[e-mail]·www.energylab.com
Client:Denison Mines USA Corp
Project:1st Quarter Groundwater 2010
QA/QC Summary Report Revised Date:05/04/10
Report Date:02/10/10
Work Order:C1 001 0826
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPDLlmlt Qual
Batch:GA-0295
02/08/1013:06Run:G5000VV_100205A
pCi/L
pCilL
pCijL
~Method Blank
0.9
0.5
0.6
Method:E900.1
Sample 10:MB-GA-0295
Gross Alpha minus Rn &U
Gross Alpha minus Rn &U Precision (f)
Gross Alpha minus Rn &U MOe
Sample 10:LCS-GA-Q295 Laboratory Control Sample Run:G5000VV_100205A 02/08/1013:06
Gross Alpha minus Rn &U 27.8pClIL 102 70 130
Sample 10:C10010826-Q04CMS Sample Matrix Spike Run:G5000W_100205A 02/08/1013:06
Gross Alpha minus Rn &U 25.4pCi/L 95 70 130
Sample 10:C10010826-004CMSO Sample Matrix Spike Duplicate Run:G5000VV_100205A 02/08/1014:49
Gross Alpha minus Rn &U 27.1pCilL 101 70 130 6.6 24.5
Qualifiers:
RL -Analyte reporting limit.
MDC •Minimum detectable concentration
NO -Not detected at the reporting limit.
iI.ENERGYLABORATORIES,INC."2393 Sal/CreekHighway(8260/;"Po.Box 3258 "Casper,WV 82602J;jq.UiW _72_01._1n_"_ee_8B_8_.2_::l_'5_.o._'5_15_"_3_0_7_2._'35_._05_f_5_"_Fax_3_0_7_.2._'3_"I_.I_fi._'39_"_C_8_sp_e_r_@_e_"e_"_17Y'_la_b_.c_o_m_"www,__._e"_O_'9_"'_la_b_.C_o_m _
Client:
Project:
Denison Mines USA Corp
1sl Quarter Groundwater 2010
QA/QC Summary Report
Revised Date:05104110
Report Date:02110110
Work Order:C10010826
Count
16 Method Blank
NO ug/L
NO ug/L
NO ug/L
NO ug/L
NO U9/L
NO ug/L
NO ug/L
NO ug/L
NO ug/L
NO ug/L
NO ug/L
NO U9/L
16 Laboratory Control Sample
93 U9/L
10 U9/L
10 ug/L
10 ug/L
10 ug/L
22 ug/L
91 ug/L
11 ug/L
9.1 ug/L
11 ug/L
10 ug/L
32 ug/L
Analyte
Method:SW8260B
Sample 10:29..Jan-10_LCS_3
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
m+p-XyJenes
Methyl ethyl ketone
Methylene chloride
Naphthalene
a-Xylene
Toluene
Xylenes,Total
Surf:1,2-DichJorobenzene-d4
Surr:Oibromofluoromethane
Surf;p-Bromofluorobenzene
Sure Toluene-dB
Sample 10:29..Jan~10_MBLK_6
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
m+p-Xylenes
Methyl ethyl ketone
Methylene chloride
Naphthalene
o-Xylene
Toluene
Xylenes,Total
Surr:1,2-Dichlorobenzene·d4
Surr:Dibromofluoromethane
Surr:p·Bromofluorobenzene
Surr:Toluene.o8
Result Units RL %REC Low Limit High Limit
Run:GCMS2_1 00 129A
20 93 70 130
1.0 103 70 130
1.0 100 70 130
1.0 101 70 130
1.0 104 70 130
1.0 108 70 130
20 91 70 130
1.0 107 70 130
1.0 91 70 130
1.0 108 70 130
1.0 100 70 130
1.0 108 70 130
1.0 102 80 120
1.0 97 70 130
1.0 104 80 130
1.0 101 80 120
Run:GCMS2_100129A
20
1.0
1.0
1.0
1.0
1.0
20
1.0
1.0
1.0
10
1.0
1.0 102 80 120
1.0 99 70 130
1.0 113 80 120
1.0 98 80 120
RPD RPOLimlt Qual
Batch:R129135
01/29/1011:36
01/29/1013:21
Sample 10:Cl0010826"001EMS
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
m+p-Xylenes
Methyl ethyl ketone
Methylene chloride
Naphthalene
o·Xy!ene
ti Sample Matrix Spike
2300 ug/L
220 ug/L
220 ug/L
220 ug/L
220 ug/L
440 ug/L
2200 ug/L
230 ug/L
180 ug/L
220 ug/L
400
20
20
20
20
20
400
20
20
20
113
108
109
109
112
109
108
113
8S
112
Run:GCMS2_100129A
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
01/29/1020:57
Qualifiers:
RL .Analyte reporting limit.
MOC .Minimum detectable concentration
ND .Not detected at the reporting limit.
ENERGy LABORATORIE~INC.•2393Sail CreekHighway (8260I)•PO Box3258 •Casper,WY82602
milFree888.235.0515 •301.235.0515 •Fax [phone] •[e-mail]·WVM:energylab.com
Client:
Project:
Denison Mines USA Corp
1st QuarterGroundwater 201 0
QA/QC Summary Report Revised Date:05/04/10
Report Date:02/10110
Work Order:C10010826
Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method:SW6260B
Sample 10:C10010626.001EMS
Toluene
Xylenes,Total
Surf;1,2-Dichlorobenzene·d4
Sure Dibromofluoromethane
Surf:p-Bromofluorobenzene
Surf:Toluene-d8
SamptelO:C10010626·001EMSO
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
m+p-Xylenes
Methyl ethyl ketone
Methylene chloride
Naphthalene
a-Xylene
Toluene
Xylenes,Total
Surr:1,2·Dlchlorobenzene·d4
Surr:Dibromofluoromethane
Surr:p-Bromofluorobenzene
Surr:Toluene·d8
16 Sample Matrix Spike
210 ug/L
660 uglL
16 Sample Matrix Spike Duplicate
2300 ug/L
220 ug/L
230 uglL
230 ug/L
240 ug/L
420 ug/L
2100 ug/L
230 ug/L
190 ug/L
220 ug/L
210 ug/L
630 ug/L
20
20
20
20
20
20
400
20
20
20
20
20
400
20
20
20
20
20
20
20
20
20
Run:GCMS2_100129A
106 70 130
110 70 130
104 60 120
104 70 130
102 80 120
100 80 120
Run:GCMS2_100129A
116 70 130
106 70 130
113 70 130
114 70 130
116 70 130
104 70 130
106 70 130
114 70 130
94 70 130
106 70 130
106 70 130
106 70 130
102 80 120
106 70 130
105 60 120
101 80 120
2.5
0.4
4
3.9
5.2
4.1
1.5
0.7
6.2
4
0.4
4.1
o
o
o
o
Batch:R129135
01/29/10 20:57
01129/10 21:33
20
20
20
20
20
20
20
20
20
20
20
20
10
10
10
10
Qualifiers:
RL -Analyte reporting limit.
MDe.Minimum detectable concentration
ND •Not detected at the reporting limit.
Energy laboratories Inc
Workorder Receipt Checklist
Denison Mines USA Corp
Login completed by:Edith McPike
Reviewed by:BL2000\kschroeder
Reviewed Date:1/27/2010
Shipping container/cooler in good condition?Ves 0"
Custodyseals intacton shipping container/cooler?Yes 0"
Custody seals intact on sample bottles?Ves 0
Chain ofcustodypresent?Yes 0'
Chain ofcustodysigned when relinquished and received?Yes 0
Chain ofcustody agrees with sample labels?Yes 0"
Samples in propercontainer/bottle?Ves 0
Sample containers intact?Yes 0"
Sufficient sample volume for indicated test?Yes [{I
All samples received within holding time?Yes 0
ContainerfTempBlank temperature:3°e On lee
Water·VOA vials have zero headspace?Yes 0"
Water·pH acceptable upon receipt?Yes 0"
Contact and Corrective Action Comments:
II~I"I ~I!I~"I~I!IIIII11111111illllllllil
C10010826
Date Received:1/26/2010
Received by:em
Carrier name:NDA
No 0 Not Present 0
No 0 NotPresent 0
No 0 NotPresent 0
No 0
No 0
No 0
No 0
No 0
No 0
No [;7]
No 0 No VOA vials submitted 0
No 0 Not Applicable 0
Cancelled TDS and pH analyses for MW 27.Sample was received past the EPA-recommended holding time.
Comp~Name:
l..)e.f\;SOI\M~fIP_'"-I EPA/State Compliance:
Yes 0 No 0
IUIlItD
"~'R«W.'T~
Chain of Custody and Analytical Request Record
PLEASE PRINT (Provide as much Information as possible.}
Project Name,PWS,Permit,Etc.ISample Origin
Iq Qo.o.r\<t'6-rO"<lj.I0...\tr ;:).0(0 State:l).t-
Page Of-L
Email:Phone/Fax:I Sampler:(Please Print)
\\~I\?....\I'lcr ~35 b7r m I [-ell/lU )fcll;.lA 1-
Contact Name:Report Mail Address:1'0 Box '60<\B]o.nO-;n,~.\AT ~%\\
I InvoiceAddress:
S~
Invoice Contact as:::IPurchase Order:IQuoteJBottle Order:
®"
y R'
6:
OnIcc:
CUstody Seal
On60ttIe
On CooI!lf
Inlaet
Signature
Match
-rr;p e.iM~
:rrl't...~
D EDD/EDT(EJ"""onic Data)
Format:_-;;-:-_
D LEVEL IV
DNELAC
:;:~W@[]@ []B§@)I!!J~•Contact ELI prior to .,,~,).,.
CI a;RUSH sample submittal~~0 (/)..s:::.i I --.for charges and CooltrI II:rn"'Oi--f-R -._>'0 >."*0 «scheduling -see (:.men~~:r:~t:..Instruction Page l I5>-~~~~u;cb1,~~<.)()C Comments:Receip;em~"'S~l_§~~~U <:I °C}lQ.cooCl _I f-Q"E~r:s·'~!.-~::;'Q)~Q.>3:!j I «I-
Za.«1 g'0,.;I I LU "5!ij>l ....1 wta
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SAMPLE IDENTIFICATION I Collection I Collection IMATRIX I ,.<I U)H(Name,Location,Interval,etc.)Date Time ~
Special ReporVFormats:
DDWDPOTWfWWTPDState:_
D Other:_
r 3 1"\W :;.~.Iq <ll\lfI l:l]q {.,.v.J I)(i !I -i ©T I
I'MW 30 l-.:lD~iO I~OC (.,·w X I i I !W@ I
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signa:ure:
Signa1uro:
SignaturEt:
u...,""'I'1 rl '/IJ
i I.JJ,Jil I{•VP
OatefTime'
DatefTirne:Received by (prirJ):
Re~by (pMIt):
I
&~nature·_,.....1J#;j
"
Custody
Record f-\!~~~'H!:~~-l:'""~~~"I"o.L ----;;;goo'"'''V
M~ST ber--------------------:~F91~rn~""
Signed Sample Disposal:Return to Client lab Disposal:~
In certain circumstances,samples submitted to Energy Laboratories,Inc.may besubcontracted to other certified laboratories in order tocomplete the analysis requested.
This serves as notice ofthis possibility.AU sutrcontract data will be clearly notated on your analytical report.
Visit our web site atwww.energylab.com for additional information.downloadable fee schedule.forms,and links.

Tab G
Quality Assurance and Data Validation Tables
G-1: Routine Field Data QA/QC Evaluation
Well
Time
Req'd for
2 Casings
Time Pumped
(min)
Amount
Sufficient?RPD(%) RPD(%) RPD(%) RPD(%) RPD(%)
MW-11 241 241 Y 2912 2911 0.03 7.34 7.34 0.00 14.43 14.41 0.14 371 369 0.54 0 0 0.00
MW-14 (2/2/2010) 149 150 Y 3909 3906 0.08 6.45 6.45 0.00 13.94 13.95 -0.07 305 305 0.00 0 0 0.00
MW-25 249 248 N 3192 3191 0.03 6.54 6.52 0.31 13.97 13.99 -0.14 374 359 4.09 0 0 0.00
MW-26 -- -- -- 3460 3512 -1.49 6.6 6.59 0.15 14.12 14.23 -0.78 418 409 2.18 0 0 0.00
MW-30 (2/9/2010) 207 206 N 2066 2067 -0.05 6.8 6.81 -0.15 13.36 13.34 0.15 70 73 -4.20 0.9 0.7 25.00
MW-31 365 364 N 1783 1782 0.06 6.96 6.96 0.00 13.97 13.98 -0.07 488 488 0.00 0 0 0.00
Background Wells
MW-20 36 36 Y 6803 6782 0.31 7.1 7.13 -0.42 12.57 11.98 4.81 592 583 1.53 0 0 0.00
MW-22 282 281 N 7077 7080 -0.04 5.61 5.6 0.18 14.17 14.18 -0.07 501 501 0.00 4.6 4.5 2.20
Conductance pH Temp (˚C) Redox Potential (Eh) Turbidity (NTU)
G-1: Accelerated Field Data QA/QC Evaluation
Well
Time
Req'd for
2 Casings
Time Pumped
(min)
Amount
Sufficient?RPD(%) RPD(%) RPD(%) RPD(%) RPD(%)
MW-14 (1/13/2010) 156 155 N 3913 3913 0.00 6.32 6.42 -1.57 14.09 14.08 0.07 422 389 8.14 0 0 0.00
MW-18 (1/27/2010) 397 396 N 3469 3477 -0.23 6.33 6.33 0.00 13.62 13.57 0.37 1 0 200.00 0 0 0.00
MW-18 (3/22/2010) 395 395 Y 3500 3500 0.00 6.17 6.17 0.00 14.19 14.19 0.00 23 23 0.00 0 0 0.00
MW-19 592 592 Y 1445 1489 -3.00 6.83 6.83 0.00 13.96 13.94 0.14 451 485 -7.26 1.2 0.8 40.00
MW-24 37 20 N 4628 4559 1.50 6.64 6.4 3.68 12.38 11.96 3.45 402 401 0.25 0.9 1.7 -61.54
MW-27 (1/18/2010) 267 267 Y 1487 1538 -3.37 6.99 6.97 0.29 14.27 14.3 -0.21 522 517 0.96 0 0 0.00
MW-28 205 204 N 3943 3945 -0.05 5.85 5.83 0.34 14.19 14.29 -0.70 501 470 6.39 0 0 0.00
MW-30 (1/20/2010) 210 210 Y 2048 2055 -0.34 6.74 6.73 0.15 13.73 13.59 1.02 411 404 1.72 0 0 0.00
MW-32 332 332 Y 3981 3990 -0.23 6.16 6.17 -0.16 13.87 13.89 -0.14 174 162 7.14 2.3 2.8 -19.61
Conductance pH Temp (˚C) Redox Potential (Eh) Turbidity (NTU)
G-2: Holding Time Evaluation
Constituent
QAP
Holding
Time MW-11
MW-14
(2/2/2010)
MW-14
(1/13/2010)
MW-18
(1/27/2010)
2-Butanone (MEK) 14 days 9.1 days 8.3 days -- --
Acetone 14 days 9.1 days 8.3 days -- --
Ammonia (as N) 28 days 13.1 days 21 days -- --
Arsenic 6 months 6.4 days 6.7 days -- --
Benzene 14 days 9.1 days 8.3 days -- --
Beryllium 6 months 6.4 days 6.7 days -- --
Cadmium 6 months 6.4 days 6.7 days -- --
Carbon Tetrachloride 14 days 9.1 days 8.3 days -- --
Chloride (mg/L) 28 days 8.2 days 8.9 days -- --
Chloroform 14 days 9.1 days 8.3 days -- --
Chloromethane 14 days 9.1 days 8.3 days -- --
Chromium 6 months 6.4 days 6.7 days -- --
Cobalt 6 months 6.4 days 6.7 days -- --
Copper 6 months 6.4 days 6.7 days -- --
Dichloromethane (Methylene Chloride) 14 days 9.1 days 8.3 days -- --
Fluoride (Mg/L) 28 days 6 days 6.1 days -- --
Gross Alpha minus Rn & U MDC 6 months 17.1 days 15.1 days -- --
Gross Alpha minus Rn & U Precision (±) 6 months 17.1 days 15.1 days -- --
Gross Alpha minus Rn & U 6 months 17.1 days 15.1 days -- --
Iron 6 months 6.4 days 6.7 days -- --
Lab pH (S.U.) -- 2.1 days 3.2 days -- --
Lead 6 months 6.4 days 6.7 days -- --
Manganese 6 months 6.4 days 6.7 days 5.7 days --
Mercury 28 days 6.4 days 7.2 days -- --
Molybdenum 6 months 6.4 days 6.7 days -- --
Naphthalene 14 days 9.1 days 8.3 days -- --
Nickel 6 months 6.4 days 6.7 days -- --
Nitrate + Nitrite (as N) 28 days 16.2 days 14.2 days -- --
Selenium 6 months 6.4 days 6.7 days -- --
Silver 6 months 6.4 days 7.2 days -- --
Sulfate (mg/L) 28 days 21 days 21.1 days -- --
TDS (mg/L) 7 days 2.1 days 6 days -- --
Tetrahydrofuran 14 days 2 days 7.3 days -- --
Thallium 6 months 6.4 days 6.7 days -- 9.6 days
Tin 6 months 6.4 days 6.7 days -- --
Toluene 14 days 9.1 days 8.3 days -- --
Uranium 6 months 6.4 days 6.7 days 5.7 days 9.6 days
Vanadium 6 months 6.4 days 6.7 days -- --
Xylenes (total) 14 days 9.1 days 8.3 days -- --
Zinc 6 months 6.4 days 6.7 days -- --
A/C Balance (± 5) BALANCE-W -- 21.9 days 21.9 days -- --
Anions BALANCE-W -- 21.9 days 21.9 days -- --
Bicarbonate as HCO3 14 days 2.4 days 7.3 days -- --
Calcium 6 months 19.2 days 20.4 days -- --
Carbonate as CO3 14 days 2.4 days 7.3 days -- --
Cations BALANCE-W -- 21.9 days 21.9 days -- --
Magnesium 6 months 19.2 days 20.4 days -- --
Potassium 6 months 19.2 days 20.4 days -- --
Sodium 6 months 19.2 days 20.4 days -- --
G-2: Holding Time Evaluation
Constituent
QAP
Holding
Time
2-Butanone (MEK) 14 days
Acetone 14 days
Ammonia (as N) 28 days
Arsenic 6 months
Benzene 14 days
Beryllium 6 months
Cadmium 6 months
Carbon Tetrachloride 14 days
Chloride (mg/L) 28 days
Chloroform 14 days
Chloromethane 14 days
Chromium 6 months
Cobalt 6 months
Copper 6 months
Dichloromethane (Methylene Chloride) 14 days
Fluoride (Mg/L) 28 days
Gross Alpha minus Rn & U MDC 6 months
Gross Alpha minus Rn & U Precision (±) 6 months
Gross Alpha minus Rn & U 6 months
Iron 6 months
Lab pH (S.U.) --
Lead 6 months
Manganese 6 months
Mercury 28 days
Molybdenum 6 months
Naphthalene 14 days
Nickel 6 months
Nitrate + Nitrite (as N) 28 days
Selenium 6 months
Silver 6 months
Sulfate (mg/L) 28 days
TDS (mg/L) 7 days
Tetrahydrofuran 14 days
Thallium 6 months
Tin 6 months
Toluene 14 days
Uranium 6 months
Vanadium 6 months
Xylenes (total) 14 days
Zinc 6 months
A/C Balance (± 5) BALANCE-W --
Anions BALANCE-W --
Bicarbonate as HCO3 14 days
Calcium 6 months
Carbonate as CO3 14 days
Cations BALANCE-W --
Magnesium 6 months
Potassium 6 months
Sodium 6 months
MW-18
(3/22/2010) MW-19 MW-20 MW-22
-- -- 8.3 days 11 days
-- -- 8.3 days 11 days
-- -- 12.2 days 15 days
-- -- 5.6 days 8.4 days
-- -- 8.3 days 11 days
-- -- 5.6 days 8.4 days
-- -- 5.6 days 8.4 days
-- -- 8.3 days 11 days
-- -- 7.3 days 10.1 days
-- -- 8.3 days 11 days
-- -- 8.3 days 11 days
-- -- 5.6 days 8.4 days
-- -- 5.6 days 8.4 days
-- -- 5.6 days 8.4 days
-- -- 8.3 days 11 days
-- 5.8 days 5.1 days 7.9 days
-- -- 16.2 days 26.2 days
-- -- 16.2 days 26.2 days
-- -- 16.2 days 26.2 days
-- -- 5.6 days 8.4 days
-- -- 1.3 days 4 days
-- -- 5.6 days 8.4 days
-- -- 5.6 days 8.4 days
-- -- 5.6 days 8.4 days
-- -- 5.6 days 8.4 days
-- -- 8.3 days 11 days
-- -- 5.6 days 8.4 days
-- 12.8 days 15.4 days 18.1 days
-- -- 5.6 days 8.4 days
-- -- 5.6 days 8.4 days
-- -- 20.2 days 22.9 days
-- -- 1.3 days 4 days
-- -- 1.2 days 4 days
7 days 10.4 days 5.6 days 8.4 days
-- -- 5.6 days 8.4 days
-- -- 8.3 days 11 days
7 days 10.4 days 5.6 days 8.4 days
-- -- 5.6 days 8.4 days
-- -- 8.3 days 11 days
-- -- 5.6 days 8.4 days
-- -- 21.1 days 23.8 days
-- -- 21.1 days 23.8 days
-- -- 1.6 days 4.4 days
-- -- 18.4 days 21.1 days
-- -- 1.6 days 4.4 days
-- -- 21.1 days 23.8 days
-- -- 18.4 days 21.1 days
-- -- 18.4 days 21.1 days
-- -- 18.4 days 21.1 days
G-2: Holding Time Evaluation
Constituent
QAP
Holding
Time
2-Butanone (MEK) 14 days
Acetone 14 days
Ammonia (as N) 28 days
Arsenic 6 months
Benzene 14 days
Beryllium 6 months
Cadmium 6 months
Carbon Tetrachloride 14 days
Chloride (mg/L) 28 days
Chloroform 14 days
Chloromethane 14 days
Chromium 6 months
Cobalt 6 months
Copper 6 months
Dichloromethane (Methylene Chloride) 14 days
Fluoride (Mg/L) 28 days
Gross Alpha minus Rn & U MDC 6 months
Gross Alpha minus Rn & U Precision (±) 6 months
Gross Alpha minus Rn & U 6 months
Iron 6 months
Lab pH (S.U.) --
Lead 6 months
Manganese 6 months
Mercury 28 days
Molybdenum 6 months
Naphthalene 14 days
Nickel 6 months
Nitrate + Nitrite (as N) 28 days
Selenium 6 months
Silver 6 months
Sulfate (mg/L) 28 days
TDS (mg/L) 7 days
Tetrahydrofuran 14 days
Thallium 6 months
Tin 6 months
Toluene 14 days
Uranium 6 months
Vanadium 6 months
Xylenes (total) 14 days
Zinc 6 months
A/C Balance (± 5) BALANCE-W --
Anions BALANCE-W --
Bicarbonate as HCO3 14 days
Calcium 6 months
Carbonate as CO3 14 days
Cations BALANCE-W --
Magnesium 6 months
Potassium 6 months
Sodium 6 months
MW-24 MW-25 MW-26
MW-27
(1/18/2010)
10.2 days 7.2 days 8.2 days 11.6 days
10.2 days 7.2 days 8.2 days 11.6 days
15.8 days 19.9 days 20.8 days 16.9 days
9.5 days 5.7 days 6.6 days 10.6 days
10.2 days 7.2 days 8.2 days 11.6 days
9.5 days 5.7 days 6.6 days 10.6 days
9.5 days 5.7 days 6.6 days 10.6 days
10.2 days 7.2 days 8.2 days 11.6 days
7.8 days 7.9 days 8.8 days 8.9 days
10.2 days 7.2 days 8.2 days 11.6 days
10.2 days 7.2 days 8.2 days 11.6 days
9.5 days 5.7 days 6.6 days 10.6 days
9.5 days 5.7 days 6.6 days 10.6 days
9.5 days 5.7 days 6.6 days 10.6 days
10.2 days 7.2 days 8.2 days 11.6 days
8.9 days 5.1 days 6 days 10 days
19.9 days 14.1 days 15.1 days 21 days
19.9 days 14.1 days 15.1 days 21 days
19.9 days 14.1 days 15.1 days 21 days
9.5 days 5.7 days 6.6 days 10.6 days
6.9 days 2.2 days 3.1 days --
9.5 days 5.7 days 6.6 days 10.6 days
9.5 days 5.7 days 6.6 days 10.6 days
9.5 days 6.1 days 7.1 days 10.6 days
9.5 days 5.7 days 6.6 days 10.6 days
10.2 days 7.2 days 8.2 days 11.6 days
9.5 days 5.7 days 6.6 days 10.6 days
12.9 days 13.1 days 14.1 days 14 days
9.5 days 5.7 days 6.6 days 10.6 days
9.5 days 6.1 days 7.1 days 10.6 days
13.1 days 20.1 days 21 days 14.2 days
7 days 5 days 5.9 days --
-- 6.3 days 7.2 days --
9.5 days 5.7 days 6.6 days 10.6 days
9.5 days 5.7 days 6.6 days 10.6 days
10.2 days 7.2 days 8.2 days 11.6 days
103.9 days 5.7 days 6.6 days 10.6 days
9.5 days 5.7 days 6.6 days 10.6 days
10.2 days 7.2 days 8.2 days 11.6 days
9.5 days 5.7 days 6.6 days 10.6 days
19.8 days 20.8 days 21.8 days 20.9 days
19.8 days 20.8 days 21.8 days 20.9 days
7.9 days 6.3 days 7.2 days 9 days
16.9 days 19.3 days 20.3 days 18 days
7.9 days 6.3 days 7.2 days 9 days
19.8 days 20.8 days 21.8 days 20.9 days
16.9 days 19.3 days 20.3 days 18 days
16.9 days 19.3 days 20.3 days 18 days
16.9 days 19.3 days 20.3 days 18 days
G-2: Holding Time Evaluation
Constituent
QAP
Holding
Time
2-Butanone (MEK) 14 days
Acetone 14 days
Ammonia (as N) 28 days
Arsenic 6 months
Benzene 14 days
Beryllium 6 months
Cadmium 6 months
Carbon Tetrachloride 14 days
Chloride (mg/L) 28 days
Chloroform 14 days
Chloromethane 14 days
Chromium 6 months
Cobalt 6 months
Copper 6 months
Dichloromethane (Methylene Chloride) 14 days
Fluoride (Mg/L) 28 days
Gross Alpha minus Rn & U MDC 6 months
Gross Alpha minus Rn & U Precision (±) 6 months
Gross Alpha minus Rn & U 6 months
Iron 6 months
Lab pH (S.U.) --
Lead 6 months
Manganese 6 months
Mercury 28 days
Molybdenum 6 months
Naphthalene 14 days
Nickel 6 months
Nitrate + Nitrite (as N) 28 days
Selenium 6 months
Silver 6 months
Sulfate (mg/L) 28 days
TDS (mg/L) 7 days
Tetrahydrofuran 14 days
Thallium 6 months
Tin 6 months
Toluene 14 days
Uranium 6 months
Vanadium 6 months
Xylenes (total) 14 days
Zinc 6 months
A/C Balance (± 5) BALANCE-W --
Anions BALANCE-W --
Bicarbonate as HCO3 14 days
Calcium 6 months
Carbonate as CO3 14 days
Cations BALANCE-W --
Magnesium 6 months
Potassium 6 months
Sodium 6 months
MW-27
(3/15/2010) MW-28
MW-30
(2/9/2010)
MW-30
(1/20/2010)
-- 10.6 days 10 days 9.6 days
-- 10.6 days 10 days 9.6 days
-- 15.9 days 13.9 days --
-- 9.7 days 7.3 days --
-- 10.6 days 10 days 9.6 days
-- 9.7 days 7.3 days --
-- 9.7 days 7.3 days --
-- 10.6 days 10 days 9.6 days
-- 8 days 9 days 7 days
-- 10.6 days 10 days 9.6 days
-- 10.6 days 10 days 9.6 days
-- 9.7 days 7.3 days --
-- 9.7 days 7.3 days --
-- 9.7 days 7.3 days --
-- 10.6 days 10 days 9.6 days
-- 9 days 6.8 days 8 days
-- 20 days 17.9 days 19 days
-- 20 days 17.9 days 19 days
-- 20 days 17.9 days 19 days
-- 9.7 days 7.3 days --
4 days 7 days 3 days 6 days
-- 9.7 days 7.3 days --
-- 9.7 days 7.3 days --
-- 9.7 days 7.3 days --
-- 9.7 days 7.3 days --
-- 10.6 days 10 days 9.6 days
-- 9.7 days 7.3 days --
-- 13 days 17.1 days --
-- 9.7 days 7.3 days --
-- 9.7 days 7.3 days --
-- 13.2 days 21.9 days 19.2 days
4 days 7.2 days 3 days 6.2 days
-- -- 2.9 days --
-- 9.7 days 7.3 days --
-- 9.7 days 7.3 days --
-- 10.6 days 10 days --
-- 9.7 days 7.3 days --
-- 9.7 days 7.3 days --
-- 10.6 days 10 days --
-- 9.7 days 7.3 days --
-- 19.9 days 22.8 days 19.9 days
-- 19.9 days 22.8 days 19.9 days
-- 8 days 3.3 days 7.1 days
-- 17.1 days 20.1 days 16.1 days
-- 8 days 3.3 days 7.1 days
-- 19.9 days 22.8 days 19.9 days
-- 17.1 days 20.1 days 16.1 days
-- 17.1 days 20.1 days 16.1 days
-- 17.1 days 20.1 days 16.1 days
G-2: Holding Time Evaluation
Constituent
QAP
Holding
Time
2-Butanone (MEK) 14 days
Acetone 14 days
Ammonia (as N) 28 days
Arsenic 6 months
Benzene 14 days
Beryllium 6 months
Cadmium 6 months
Carbon Tetrachloride 14 days
Chloride (mg/L) 28 days
Chloroform 14 days
Chloromethane 14 days
Chromium 6 months
Cobalt 6 months
Copper 6 months
Dichloromethane (Methylene Chloride) 14 days
Fluoride (Mg/L) 28 days
Gross Alpha minus Rn & U MDC 6 months
Gross Alpha minus Rn & U Precision (±) 6 months
Gross Alpha minus Rn & U 6 months
Iron 6 months
Lab pH (S.U.) --
Lead 6 months
Manganese 6 months
Mercury 28 days
Molybdenum 6 months
Naphthalene 14 days
Nickel 6 months
Nitrate + Nitrite (as N) 28 days
Selenium 6 months
Silver 6 months
Sulfate (mg/L) 28 days
TDS (mg/L) 7 days
Tetrahydrofuran 14 days
Thallium 6 months
Tin 6 months
Toluene 14 days
Uranium 6 months
Vanadium 6 months
Xylenes (total) 14 days
Zinc 6 months
A/C Balance (± 5) BALANCE-W --
Anions BALANCE-W --
Bicarbonate as HCO3 14 days
Calcium 6 months
Carbonate as CO3 14 days
Cations BALANCE-W --
Magnesium 6 months
Potassium 6 months
Sodium 6 months
MW-31
MW-65
(dup of
MW-31)
10.1 days 10.1 days
10.1 days 10.1 days
14 days 14 days
7.4 days 7.4 days
10.1 days 10.1 days
7.4 days 7.4 days
7.4 days 7.4 days
10.1 days 10.1 days
9.1 days 9.1 days
10.1 days 10.1 days
10.1 days 10.1 days
7.4 days 7.4 days
7.4 days 7.4 days
7.4 days 7.4 days
10.1 days 10.1 days
6.9 days 6.9 days
18 days 18 days
18 days 18 days
18 days 18 days
7.4 days 7.4 days
3 days 3 days
7.4 days 7.4 days
7.4 days 7.4 days
7.4 days 7.4 days
7.4 days 7.4 days
10.1 days 10.1 days
7.4 days 7.4 days
17.1 days 17.1 days
7.4 days 7.4 days
7.4 days 7.4 days
21.9 days 21.9 days
3 days 3 days
3 days 3 days
7.4 days 7.4 days
7.4 days 7.4 days
10.1 days 10.1 days
7.4 days 7.4 days
7.4 days 7.4 days
10.1 days 10.1 days
7.4 days 7.4 days
22.8 days 22.8 days
22.8 days 22.8 days
3.3 days 3.3 days
20.1 days 20.2 days
3.3 days 3.3 days
22.8 days 22.8 days
20.1 days 20.2 days
20.1 days 20.2 days
20.1 days 20.2 days
G-3: Laboratory Receipt Temperature Check
Sample Batch Wells in Batch Temperature
C10020229 MW-14, MW-25, MW-26 2 ˚C
C10010826 MW-24, MW-27, MW-28, MW-
30 3 ˚C
C10010995 MW-18, MW-19 2 ˚C
C10020458 MW-11, MW-20, MW-22, MW-
30, MW-31, MW-65 4 ˚C
C10030850 MW-18 3 ˚C
C10010496 MW-14, MW-26, MW-32, MW-
65 2 ˚C
1002113 MW-14, MW-25, MW-26 2.8 ˚C
1002225 MW-11, MW-20, MW-22, MW-
30, MW-31, MW-65 2.9 ˚C
G-4: Analytical Method Check
Parameter QAP Method Method Used by Lab
Ammonia (as N) A4500-NH3 G A4500-NH3 G
Nitrate + Nitrite (as N) E353.2 E353.2
Metals except Iron E200.8 E200.8
Iron E200.7 E200.7
Gross Alpha E900.1 E900.1
VOCs except Tetrahydrofuran SW8260B SW8260B
Tetrahydrofuran SW8260C SW8260C
Chloride A4500-Cl B A4500-Cl B
Fluoride A4500-F C A4500-F C
Sulfate A4500-SO4 E A4500-SO4 E
TDS A2540 C A2540 C
Carbonate as CO3, Bicarbonate as HCO3 A2320 B A2320 B
Calcium, Magnesium, Potassium, Sodium E200.7 E200.7
Tetrahydrofuran was analyzed by American West Analytical Laboratories. All other constituents were analyzed by Energy Laboratories.
Table G-5 Reporting Limit Check
All analytes were analyzed and reported to the correct reporting limits.
G-6: Trip Blank Evaluation
All trip blanks for the 2010 First Quarter samples were non detect.
Blank Sample Date Purpose Laboratory
1 1/20/2010 Accelerated Energy Laboratories
2 2/3/2010 Quarterly Energy Laboratories
3 2/11/2010 Quarterly Energy Laboratories
G-7: QA/QC Evaluation for Routine Sample Duplicates
Constituent MW-31 MW-65 %RPD
Ammonia (as N) 0.05 0.05 0.00
Nitrate + Nitrite (as N) 21.7 22.3 -2.73
Arsenic 5 5 0.00
Beryllium 0.5 0.5 0.00
Cadmium 0.5 0.5 0.00
Chromium 25 25 0.00
Cobalt 10 10 0.00
Copper 10 10 0.00
Iron 30 30 0.00
Lead 1 1 0.00
Manganese 10 10 0.00
Mercury 0.5 0.5 0.00
Molybdenum 10 10 0.00
Nickel 20 20 0.00
Selenium 60.8 60.4 0.66
Silver 10 10 0.00
Thallium 0.5 0.5 0.00
Tin 100 100 0.00
Uranium 7.12 7.07 0.70
Vanadium 15 15 0.00
Zinc 10 10 0.00
2-Butanone (MEK) 20 20 0.00
Acetone 20 20 0.00
Benzene 1 1 0.00
Carbon Tetrachloride 1 1 0.00
Chloroform 1 1 0.00
Chloromethane 1 1 0.00
Dichloromethane (Methylene Chloride) 1 1 0.00
Naphthalene 1 1 0.00
Tetrahydrofuran 0 0 0.00
Toluene 1 1 0.00
Xylenes (total) 1 1 0.00
Chloride (mg/L) 128 130 -1.55
Fluoride (Mg/L) 0.88 0.85 3.47
Lab pH (S.U.) 7.64 7.63 0.13
Sulfate (mg/L) 507 507 0.00
Gross Alpha minus Rn & U MDC 0.5 0.5 0.00
Gross Alpha minus Rn & U 0.7 0.9 2.50
Gross Alpha minus Rn & U Precision (±) 0.4 0.5
Radiologic RPD Tests
G-8: QA/QC Evaluation for Accelerated Sample Duplicates
Constituent MW-32 MW-65 %RPD
Cadmium 1.26 1.34 -6.15
Iron 7300 7280 0.27
Manganese 5420 5340 1.49
Nickel 52 49 5.94
Gross Alpha minus Rn & U MDC 0.6 0.6 0.00
Gross Alpha minus Rn & U 3.9 1.3 5.51
Gross Alpha minus Rn & U Precision (±) 0.8 0.5
Radiologic RPD Tests
G-9: Radiologics Counting Error and Duplicates Evaluation
Well
Gross Alpha minus
Rn & U
Gross Alpha minus Rn & U
Precision (±)
Counting Error
≤ 20% GWCL
Within
GWCL?
MW-11 0.6 0.4 N 3.75 Y
MW-14 (2/2/2010) 0.4 0.3 N 7.5 Y
MW-20 0.7 0.4 N
MW-22 3.1 0.8 N
MW-25 0.6 0.3 N 7.5 Y
MW-26 2.4 0.5 N 4.69 Y
MW-30 (2/9/2010) 0.6 0.4 N 3.75 Y
MW-31 0.7 0.4 N 7.5 Y
Groundwater concentration levels have not been established for MW-20 and MW-22.
NA
NA
G-10: Laboratory Matrix QC
% Recovery comparison
Lab Report Analyte MS %REC MSD %REC REC Range
Energy Labs - C10020229 Tin 63 67 70-130
Energy Labs - C10010826 Silver 59 60 70-130
American West Labs - 1002113 1,2-Dichloropropane 134 132 70-130
American West Labs - 1002113 Methyl tert-butyl ether 33.8 35.6 48-142
American West Labs - 1002225 Methyl tert-butyl ether 184 192 48-142
Note: Manganese results for matrix spike and matrix spike duplicates for Energy Lab reports C10020229 and C10010826
were not reported due to the analyte level being greater than four times the spike level. In accordance with the method
% recovery is not calculated
Matrix spike and Matrix spike duplicate comparison
Lab Report Analyte RPD RPD Limit
Energy Labs - C10010496 Naphthalene 25 20
American West Labs - 1002113 Methyl tert-butyl ether 31.7 25
Note: 1,2 dichloropropane and methyl tert-butyl ether are not regulated compounds under the Permit.

Tab H
Kriged Current Quarterly Groundwater Contour Map and Depth Data

HYDRO
GEO
CHEM, INC.APPROVED DATE REFERENCE FIGURE
3332
3000
SCALE IN FEET
0
5582
5503
5472
5503
5521
5501
5494
5494
5499
5587
5604
5458
5450
5498
5507
5537
5577
5543
5512
5538
5547 5557
5558
5584
5546
5586
5538
5584
5578
5565
5586
5572
5523
5544
5560
5548
55855571
5564
5583
5574
5593
5612
5602
5543
5541
MW-01
MW-02
MW-03
MW-05
MW-11
MW-12
MW-14
MW-15
MW-17
MW-18
MW-19
MW-20
MW-22
MW-23
MW-24
MW-25
MW-27
MW-28
MW-29
MW-30
MW-31

MW-26

MW-32
TW4-19

PIEZ-1
PIEZ-2
PIEZ-3
PIEZ-4
PIEZ-5
5546
5555 5555MW-04
5541
5569
5600

TWN-3
TWN-4
TWN-5
TWN-6
TWN-7
TWN-8
TWN-9
TWN-10
TWN-11 TWN-12
TWN-13
TWN-14
TWN-15
TWN-16
TWN-17
TWN-18
TWN-19
5603
5605
5585
5590
5560
5590
5583
5585
5615 5630
5587
5587
5584
5604
5606
5587
5607
5601
5612
TWN-1
TWN-2
TW4-20
MW-22
PIEZ-1
5450
5593
perched monitoring well showing
elevation in feet amsl
temporary perched monitoring well installed
April, 2005 showing elevation in feet amsl
perched piezometer showing
elevation in feet amsl
5557
MW-31
5547
temporary perched monitoring well
showing elevation in feet amsl
5574
perched monitoring well installed April, 2005
showing elevation in feet amsl KRIGED 1st QUARTER, 2010 WATER LEVELS
WHITE MESA SITE
H:/718000/may10/wl0310.srf
EXPLANATION
temporary perched monitoring well installed
May, 2007 showing elevation in feet amsl5541 SJS
temporary perched nitrate
monitoring well showing
elevation in feet amsl
TWN-4
5605
NOTE: MW-4, MW-26, TW4-19 and TW4-20 are pumping wells

Tab I
Groundwater Time Concentration Plots

Time concentration plots for MW-1
Chloride in MW‐1 Fluoride in MW‐1
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
10
15
20
25
ri
d
e
 (m
g
/
L
)
Chloride in MW‐1
0.3
0.4
0.5
0.6
rid
e
 (m
g
/
L
)
Fluoride in MW‐1
0
5
10
15
20
25
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
SlDt
Chloride in MW‐1
0
0.1
0.2
0.3
0.4
0.5
0.6
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
SlDt
Fluoride in MW‐1
0
5
10
15
20
25
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐1
0
0.1
0.2
0.3
0.4
0.5
0.6
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐1
Sulfate in MW‐1 Uranium in MW‐1
0
5
10
15
20
25
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐1
0
0.1
0.2
0.3
0.4
0.5
0.6
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐1
400
500
600
700
800
900
fat
e
 (m
g
/
L
)
Sulfate in MW‐1
6
8
10
12
ni
u
m
 (µ
g
/
L
)
Uranium in MW‐1
0
5
10
15
20
25
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐1
0
0.1
0.2
0.3
0.4
0.5
0.6
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐1
0
100
200
300
400
500
600
700
800
900
Jan‐1980 Jan‐1986 Jan‐1992 Jan‐1998 Jan‐2004 Jan‐2010
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐1
0
2
4
6
8
10
12
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐1
0
5
10
15
20
25
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐1
0
0.1
0.2
0.3
0.4
0.5
0.6
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐1
0
100
200
300
400
500
600
700
800
900
Jan‐1980 Jan‐1986 Jan‐1992 Jan‐1998 Jan‐2004 Jan‐2010
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐1
0
2
4
6
8
10
12
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐1
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
Time concentration plots for MW-11
45
50
Chloride in MW‐11
0.8
Fluoride in MW‐11
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
15
20
25
30
35
40
45
50
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Chloride in MW‐11
02
0.3
0.4
0.5
0.6
0.7
0.8
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Fluoride in MW‐11
0
5
10
15
20
25
30
35
40
45
50
Dec‐1982 Dec‐1987 Dec‐1992 Dec‐1997 Dec‐2002 Dec‐2007
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐11
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
May‐1983 May‐1988 May‐1993 May‐1998 May‐2003 May‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐11
0
5
10
15
20
25
30
35
40
45
50
Dec‐1982 Dec‐1987 Dec‐1992 Dec‐1997 Dec‐2002 Dec‐2007
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐11
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
May‐1983 May‐1988 May‐1993 May‐1998 May‐2003 May‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐11
1400
Sulfate in MW‐11
3.5
Uranium in MW‐11
0
5
10
15
20
25
30
35
40
45
50
Dec‐1982 Dec‐1987 Dec‐1992 Dec‐1997 Dec‐2002 Dec‐2007
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐11
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
May‐1983 May‐1988 May‐1993 May‐1998 May‐2003 May‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐11
400
600
800
1000
1200
1400
Su
l
f
a
t
e
 (m
g
/
L
)
Sulfate in MW‐11
1
1.5
2
2.5
3
3.5
Ur
a
n
i
u
m
 (µ
g
/
L
)
Uranium in MW‐11
0
5
10
15
20
25
30
35
40
45
50
Dec‐1982 Dec‐1987 Dec‐1992 Dec‐1997 Dec‐2002 Dec‐2007
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐11
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
May‐1983 May‐1988 May‐1993 May‐1998 May‐2003 May‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐11
0
200
400
600
800
1000
1200
1400
Dec‐1982 Dec‐1987 Dec‐1992 Dec‐1997 Dec‐2002 Dec‐2007
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐11
0
0.5
1
1.5
2
2.5
3
3.5
May‐1983 May‐1988 May‐1993 May‐1998 May‐2003 May‐2008
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐11
0
5
10
15
20
25
30
35
40
45
50
Dec‐1982 Dec‐1987 Dec‐1992 Dec‐1997 Dec‐2002 Dec‐2007
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐11
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
May‐1983 May‐1988 May‐1993 May‐1998 May‐2003 May‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐11
0
200
400
600
800
1000
1200
1400
Dec‐1982 Dec‐1987 Dec‐1992 Dec‐1997 Dec‐2002 Dec‐2007
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐11
0
0.5
1
1.5
2
2.5
3
3.5
May‐1983 May‐1988 May‐1993 May‐1998 May‐2003 May‐2008
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐11
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
Time concentration plots for MW-12
90
Chloride in MW‐12
0.4
Fluoride in MW‐12
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
20
30
40
50
60
70
80
90
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Chloride in MW‐12
01
0.15
0.2
0.25
0.3
0.35
0.4
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Fluoride in MW‐12
0
10
20
30
40
50
60
70
80
90
May‐1983 May‐1988 May‐1993 May‐1998 May‐2003 May‐2008
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐12
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
Apr‐1983 Nov‐1987 Jul‐1992 Mar‐1997 Nov‐2001 Jul‐2006
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐12
0
10
20
30
40
50
60
70
80
90
May‐1983 May‐1988 May‐1993 May‐1998 May‐2003 May‐2008
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐12
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
Apr‐1983 Nov‐1987 Jul‐1992 Mar‐1997 Nov‐2001 Jul‐2006
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐12
3000
Sulfate in MW‐12
25
Uranium in MW‐12
0
10
20
30
40
50
60
70
80
90
May‐1983 May‐1988 May‐1993 May‐1998 May‐2003 May‐2008
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐12
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
Apr‐1983 Nov‐1987 Jul‐1992 Mar‐1997 Nov‐2001 Jul‐2006
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐12
1000
1500
2000
2500
3000
Su
l
f
a
t
e
 (m
g
/
L
)
Sulfate in MW‐12
10
15
20
25
Ur
a
n
i
u
m
 (µ
g
/
L
)
Uranium in MW‐12
0
10
20
30
40
50
60
70
80
90
May‐1983 May‐1988 May‐1993 May‐1998 May‐2003 May‐2008
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐12
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
Apr‐1983 Nov‐1987 Jul‐1992 Mar‐1997 Nov‐2001 Jul‐2006
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐12
0
500
1000
1500
2000
2500
3000
May‐1983 May‐1989 May‐1995 May‐2001 May‐2007
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐12
0
5
10
15
20
25
May‐1983 May‐1988 May‐1993 May‐1998 May‐2003 May‐2008
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐12
0
10
20
30
40
50
60
70
80
90
May‐1983 May‐1988 May‐1993 May‐1998 May‐2003 May‐2008
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐12
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
Apr‐1983 Nov‐1987 Jul‐1992 Mar‐1997 Nov‐2001 Jul‐2006
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐12
0
500
1000
1500
2000
2500
3000
May‐1983 May‐1989 May‐1995 May‐2001 May‐2007
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐12
0
5
10
15
20
25
May‐1983 May‐1988 May‐1993 May‐1998 May‐2003 May‐2008
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐12
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
Time concentration plots for MW-14
30
Chloride in MW‐14
0.3
Fluoride in MW‐14
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
10
15
20
25
30
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Chloride in MW‐14
0.1
0.15
0.2
0.25
0.3
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Fluoride in MW‐14
0
5
10
15
20
25
30
Oct‐1989 Oct‐1993 Oct‐1997 Oct‐2001 Oct‐2005 Oct‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐14
0
0.05
0.1
0.15
0.2
0.25
0.3
Nov‐2000 Nov‐2002 Nov‐2004 Nov‐2006 Nov‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐14
0
5
10
15
20
25
30
Oct‐1989 Oct‐1993 Oct‐1997 Oct‐2001 Oct‐2005 Oct‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐14
0
0.05
0.1
0.15
0.2
0.25
0.3
Nov‐2000 Nov‐2002 Nov‐2004 Nov‐2006 Nov‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐14
2500
Sulfate in MW‐14
120
Uranium in MW‐14
0
5
10
15
20
25
30
Oct‐1989 Oct‐1993 Oct‐1997 Oct‐2001 Oct‐2005 Oct‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐14
0
0.05
0.1
0.15
0.2
0.25
0.3
Nov‐2000 Nov‐2002 Nov‐2004 Nov‐2006 Nov‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐14
1000
1500
2000
2500
Su
l
f
a
t
e
 (m
g
/
L
)
Sulfate in MW‐14
40
60
80
100
120
Ur
a
n
i
u
m
 (µ
g
/
L
)
Uranium in MW‐14
0
5
10
15
20
25
30
Oct‐1989 Oct‐1993 Oct‐1997 Oct‐2001 Oct‐2005 Oct‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐14
0
0.05
0.1
0.15
0.2
0.25
0.3
Nov‐2000 Nov‐2002 Nov‐2004 Nov‐2006 Nov‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐14
0
500
1000
1500
2000
2500
Oct‐1989 Oct‐1993 Oct‐1997 Oct‐2001 Oct‐2005 Oct‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐14
0
20
40
60
80
100
120
Oct‐1989 Oct‐1993 Oct‐1997 Oct‐2001 Oct‐2005 Oct‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐14
0
5
10
15
20
25
30
Oct‐1989 Oct‐1993 Oct‐1997 Oct‐2001 Oct‐2005 Oct‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐14
0
0.05
0.1
0.15
0.2
0.25
0.3
Nov‐2000 Nov‐2002 Nov‐2004 Nov‐2006 Nov‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐14
0
500
1000
1500
2000
2500
Oct‐1989 Oct‐1993 Oct‐1997 Oct‐2001 Oct‐2005 Oct‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐14
0
20
40
60
80
100
120
Oct‐1989 Oct‐1993 Oct‐1997 Oct‐2001 Oct‐2005 Oct‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐14
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
Time concentration plots for MW-15
60
Chloride in MW‐15
0.4
Fluoride in MW‐15
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
20
30
40
50
60
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Chloride in MW‐15
01
0.15
0.2
0.25
0.3
0.35
0.4
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Fluoride in MW‐15
0
10
20
30
40
50
60
Oct‐1989 Oct‐1993 Oct‐1997 Oct‐2001 Oct‐2005 Oct‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐15
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
May‐1999 May‐2002 May‐2005 May‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐15
0
10
20
30
40
50
60
Oct‐1989 Oct‐1993 Oct‐1997 Oct‐2001 Oct‐2005 Oct‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐15
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
May‐1999 May‐2002 May‐2005 May‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐15
3000
Sulfate in MW‐15
70
Uranium in MW‐15
0
10
20
30
40
50
60
Oct‐1989 Oct‐1993 Oct‐1997 Oct‐2001 Oct‐2005 Oct‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐15
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
May‐1999 May‐2002 May‐2005 May‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐15
1000
1500
2000
2500
3000
Su
l
f
a
t
e
 (m
g
/
L
)
Sulfate in MW‐15
20
30
40
50
60
70
Ur
a
n
i
u
m
 (µ
g
/
L
)
Uranium in MW‐15
0
10
20
30
40
50
60
Oct‐1989 Oct‐1993 Oct‐1997 Oct‐2001 Oct‐2005 Oct‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐15
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
May‐1999 May‐2002 May‐2005 May‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐15
0
500
1000
1500
2000
2500
3000
Nov‐1989 Nov‐1993 Nov‐1997 Nov‐2001 Nov‐2005 Nov‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐15
0
10
20
30
40
50
60
70
Oct‐1989 Oct‐1993 Oct‐1997 Oct‐2001 Oct‐2005 Oct‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐15
0
10
20
30
40
50
60
Oct‐1989 Oct‐1993 Oct‐1997 Oct‐2001 Oct‐2005 Oct‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐15
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
May‐1999 May‐2002 May‐2005 May‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐15
0
500
1000
1500
2000
2500
3000
Nov‐1989 Nov‐1993 Nov‐1997 Nov‐2001 Nov‐2005 Nov‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐15
0
10
20
30
40
50
60
70
Oct‐1989 Oct‐1993 Oct‐1997 Oct‐2001 Oct‐2005 Oct‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐15
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
Time concentration plots for MW-17
45
50
Chloride in MW‐17
0.45
Fluoride in MW‐17
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
15
20
25
30
35
40
45
50
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Chloride in MW‐17
01
0.15
0.2
0.25
0.3
0.35
0.4
0.45
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Fluoride in MW‐17
0
5
10
15
20
25
30
35
40
45
50
Nov‐1991 Nov‐1995 Nov‐1999 Nov‐2003 Nov‐2007
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐17
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
Apr‐1999 Mar‐2001 Feb‐2003 Jan‐2005 Nov‐2006 Oct‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐17
0
5
10
15
20
25
30
35
40
45
50
Nov‐1991 Nov‐1995 Nov‐1999 Nov‐2003 Nov‐2007
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐17
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
Apr‐1999 Mar‐2001 Feb‐2003 Jan‐2005 Nov‐2006 Oct‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐17
3500
Sulfate in MW‐17
45
50
Uranium in MW‐17
0
5
10
15
20
25
30
35
40
45
50
Nov‐1991 Nov‐1995 Nov‐1999 Nov‐2003 Nov‐2007
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐17
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
Apr‐1999 Mar‐2001 Feb‐2003 Jan‐2005 Nov‐2006 Oct‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐17
1000
1500
2000
2500
3000
3500
Su
l
f
a
t
e
 (m
g
/
L
)
Sulfate in MW‐17
15
20
25
30
35
40
45
50
Ur
a
n
i
u
m
 (µ
g
/
L
)
Uranium in MW‐17
0
5
10
15
20
25
30
35
40
45
50
Nov‐1991 Nov‐1995 Nov‐1999 Nov‐2003 Nov‐2007
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐17
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
Apr‐1999 Mar‐2001 Feb‐2003 Jan‐2005 Nov‐2006 Oct‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐17
0
500
1000
1500
2000
2500
3000
3500
Mar‐1993 Mar‐1997 Mar‐2001 Mar‐2005 Mar‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐17
0
5
10
15
20
25
30
35
40
45
50
Mar‐1993 Mar‐1996 Mar‐1999 Mar‐2002 Mar‐2005 Mar‐2008
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐17
0
5
10
15
20
25
30
35
40
45
50
Nov‐1991 Nov‐1995 Nov‐1999 Nov‐2003 Nov‐2007
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐17
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
Apr‐1999 Mar‐2001 Feb‐2003 Jan‐2005 Nov‐2006 Oct‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐17
0
500
1000
1500
2000
2500
3000
3500
Mar‐1993 Mar‐1997 Mar‐2001 Mar‐2005 Mar‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐17
0
5
10
15
20
25
30
35
40
45
50
Mar‐1993 Mar‐1996 Mar‐1999 Mar‐2002 Mar‐2005 Mar‐2008
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐17
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
Time concentration plots for MW-18
80
Chloride in MW‐18
0.45
Fluoride in MW‐18
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
20
30
40
50
60
70
80
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Chloride in MW‐18
01
0.15
0.2
0.25
0.3
0.35
0.4
0.45
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Fluoride in MW‐18
0
10
20
30
40
50
60
70
80
Mar‐1993 Mar‐1996 Mar‐1999 Mar‐2002 Mar‐2005 Mar‐2008
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐18
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
Apr‐1999 Mar‐2001 Feb‐2003 Jan‐2005 Nov‐2006 Oct‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐18
0
10
20
30
40
50
60
70
80
Mar‐1993 Mar‐1996 Mar‐1999 Mar‐2002 Mar‐2005 Mar‐2008
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐18
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
Apr‐1999 Mar‐2001 Feb‐2003 Jan‐2005 Nov‐2006 Oct‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐18
2500
Sulfate in MW‐18
60
Uranium in MW‐18
0
10
20
30
40
50
60
70
80
Mar‐1993 Mar‐1996 Mar‐1999 Mar‐2002 Mar‐2005 Mar‐2008
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐18
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
Apr‐1999 Mar‐2001 Feb‐2003 Jan‐2005 Nov‐2006 Oct‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐18
1000
1500
2000
2500
Su
l
f
a
t
e
 (m
g
/
L
)
Sulfate in MW‐18
20
30
40
50
60
Ur
a
n
i
u
m
 (µ
g
/
L
)
Uranium in MW‐18
0
10
20
30
40
50
60
70
80
Mar‐1993 Mar‐1996 Mar‐1999 Mar‐2002 Mar‐2005 Mar‐2008
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐18
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
Apr‐1999 Mar‐2001 Feb‐2003 Jan‐2005 Nov‐2006 Oct‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐18
0
500
1000
1500
2000
2500
Mar‐1993 Mar‐1997 Mar‐2001 Mar‐2005 Mar‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐18
0
10
20
30
40
50
60
Mar‐1993 Mar‐1996 Mar‐1999 Mar‐2002 Mar‐2005 Mar‐2008
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐18
0
10
20
30
40
50
60
70
80
Mar‐1993 Mar‐1996 Mar‐1999 Mar‐2002 Mar‐2005 Mar‐2008
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐18
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
Apr‐1999 Mar‐2001 Feb‐2003 Jan‐2005 Nov‐2006 Oct‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐18
0
500
1000
1500
2000
2500
Mar‐1993 Mar‐1997 Mar‐2001 Mar‐2005 Mar‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐18
0
10
20
30
40
50
60
Mar‐1993 Mar‐1996 Mar‐1999 Mar‐2002 Mar‐2005 Mar‐2008
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐18
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
Time concentration plots for MW-19
90
100
Chloride in MW‐19
1.6
Fluoride in MW‐19
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
30
40
50
60
70
80
90
100
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Chloride in MW‐19
04
0.6
0.8
1
1.2
1.4
1.6
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Fluoride in MW‐19
0
10
20
30
40
50
60
70
80
90
100
Mar‐1993 Mar‐1996 Mar‐1999 Mar‐2002 Mar‐2005 Mar‐2008
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐19
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
May‐1999 May‐2001 May‐2003 May‐2005 May‐2007 May‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐19
0
10
20
30
40
50
60
70
80
90
100
Mar‐1993 Mar‐1996 Mar‐1999 Mar‐2002 Mar‐2005 Mar‐2008
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐19
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
May‐1999 May‐2001 May‐2003 May‐2005 May‐2007 May‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐19
3000
Sulfate in MW‐19
30
Uranium in MW‐19
0
10
20
30
40
50
60
70
80
90
100
Mar‐1993 Mar‐1996 Mar‐1999 Mar‐2002 Mar‐2005 Mar‐2008
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐19
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
May‐1999 May‐2001 May‐2003 May‐2005 May‐2007 May‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐19
1000
1500
2000
2500
3000
Su
l
f
a
t
e
 (m
g
/
L
)
Sulfate in MW‐19
10
15
20
25
30
Ur
a
n
i
u
m
 (µ
g
/
L
)
Uranium in MW‐19
0
10
20
30
40
50
60
70
80
90
100
Mar‐1993 Mar‐1996 Mar‐1999 Mar‐2002 Mar‐2005 Mar‐2008
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐19
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
May‐1999 May‐2001 May‐2003 May‐2005 May‐2007 May‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐19
0
500
1000
1500
2000
2500
3000
Mar‐1993 Mar‐1997 Mar‐2001 Mar‐2005 Mar‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐19
0
5
10
15
20
25
30
Mar‐1993 Mar‐1996 Mar‐1999 Mar‐2002 Mar‐2005 Mar‐2008
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐19
0
10
20
30
40
50
60
70
80
90
100
Mar‐1993 Mar‐1996 Mar‐1999 Mar‐2002 Mar‐2005 Mar‐2008
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐19
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
May‐1999 May‐2001 May‐2003 May‐2005 May‐2007 May‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐19
0
500
1000
1500
2000
2500
3000
Mar‐1993 Mar‐1997 Mar‐2001 Mar‐2005 Mar‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐19
0
5
10
15
20
25
30
Mar‐1993 Mar‐1996 Mar‐1999 Mar‐2002 Mar‐2005 Mar‐2008
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐19
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
Time concentration plots for MW-2
25
Chloride in MW‐2
045
0.5
Fluoride in MW‐2
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
10
15
20
25
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Chloride in MW‐2
0.15
0.2
0.25
0.3
0.35
0.4
0.45
0.5
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Fluoride in MW‐2
0
5
10
15
20
25
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐2
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
0.5
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐2
0
5
10
15
20
25
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐2
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
0.5
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐2
2500
Sulfate in MW‐2
18
20
Uranium in MW‐2
0
5
10
15
20
25
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐2
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
0.5
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐2
1000
1500
2000
2500
Su
l
f
a
t
e
 (m
g
/
L
)
Sulfate in MW‐2
6
8
10
12
14
16
18
20
Ur
a
n
i
u
m
 (µ
g
/
L
)
Uranium in MW‐2
0
5
10
15
20
25
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐2
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
0.5
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐2
0
500
1000
1500
2000
2500
Jun‐1980 Jun‐1986 Jun‐1992 Jun‐1998 Jun‐2004 Jun‐2010
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐2
0
2
4
6
8
10
12
14
16
18
20
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐2
0
5
10
15
20
25
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐2
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
0.5
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐2
0
500
1000
1500
2000
2500
Jun‐1980 Jun‐1986 Jun‐1992 Jun‐1998 Jun‐2004 Jun‐2010
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐2
0
2
4
6
8
10
12
14
16
18
20
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐2
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
Time concentration plots for MW-20
80
Chloride in MW‐20
0.35
Fluoride in MW‐20
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
20
30
40
50
60
70
80
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Chloride in MW‐20
0.10
0.15
0.20
0.25
0.30
0.35
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Fluoride in MW‐20
0
10
20
30
40
50
60
70
80
May‐2008 Sep‐2008 Jan‐2009 May‐2009 Sep‐2009 Jan‐2010
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐20
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
Jun‐2008 Oct‐2008 Feb‐2009 Jun‐2009 Oct‐2009 Feb‐2010
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐20
0
10
20
30
40
50
60
70
80
May‐2008 Sep‐2008 Jan‐2009 May‐2009 Sep‐2009 Jan‐2010
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐20
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
Jun‐2008 Oct‐2008 Feb‐2009 Jun‐2009 Oct‐2009 Feb‐2010
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐20
4200
Sulfate in MW‐20
40
Uranium in MW‐20
0
10
20
30
40
50
60
70
80
May‐2008 Sep‐2008 Jan‐2009 May‐2009 Sep‐2009 Jan‐2010
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐20
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
Jun‐2008 Oct‐2008 Feb‐2009 Jun‐2009 Oct‐2009 Feb‐2010
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐20
3500
3600
3700
3800
3900
4000
4100
4200
Su
l
f
a
t
e
 (m
g
/
L
)
Sulfate in MW‐20
10
15
20
25
30
35
40
Ur
a
n
i
u
m
 (µ
g
/
L
)
Uranium in MW‐20
0
10
20
30
40
50
60
70
80
May‐2008 Sep‐2008 Jan‐2009 May‐2009 Sep‐2009 Jan‐2010
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐20
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
Jun‐2008 Oct‐2008 Feb‐2009 Jun‐2009 Oct‐2009 Feb‐2010
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐20
3300
3400
3500
3600
3700
3800
3900
4000
4100
4200
May‐2008 Oct‐2008 Mar‐2009 Aug‐2009 Jan‐2010
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐20
0
5
10
15
20
25
30
35
40
Nov‐1994 Aug‐1997 May‐2000 Feb‐2003 Nov‐2005 Aug‐2008
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐20
0
10
20
30
40
50
60
70
80
May‐2008 Sep‐2008 Jan‐2009 May‐2009 Sep‐2009 Jan‐2010
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐20
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
Jun‐2008 Oct‐2008 Feb‐2009 Jun‐2009 Oct‐2009 Feb‐2010
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐20
3300
3400
3500
3600
3700
3800
3900
4000
4100
4200
May‐2008 Oct‐2008 Mar‐2009 Aug‐2009 Jan‐2010
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐20
0
5
10
15
20
25
30
35
40
Nov‐1994 Aug‐1997 May‐2000 Feb‐2003 Nov‐2005 Aug‐2008
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐20
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
Time concentration plots for MW-22
80
Chloride in MW‐22
3.30
Fluoride in MW‐22
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
20
30
40
50
60
70
80
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Chloride in MW‐22
270
2.80
2.90
3.00
3.10
3.20
3.30
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Fluoride in MW‐22
0
10
20
30
40
50
60
70
80
May‐2008 Sep‐2008 Jan‐2009 May‐2009 Sep‐2009 Jan‐2010
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐22
2.50
2.60
2.70
2.80
2.90
3.00
3.10
3.20
3.30
Jun‐2008 Oct‐2008 Feb‐2009 Jun‐2009 Oct‐2009 Feb‐2010
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐22
0
10
20
30
40
50
60
70
80
May‐2008 Sep‐2008 Jan‐2009 May‐2009 Sep‐2009 Jan‐2010
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐22
2.50
2.60
2.70
2.80
2.90
3.00
3.10
3.20
3.30
Jun‐2008 Oct‐2008 Feb‐2009 Jun‐2009 Oct‐2009 Feb‐2010
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐22
6000
Sulfate in MW‐22
60
Uranium in MW‐22
0
10
20
30
40
50
60
70
80
May‐2008 Sep‐2008 Jan‐2009 May‐2009 Sep‐2009 Jan‐2010
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐22
2.50
2.60
2.70
2.80
2.90
3.00
3.10
3.20
3.30
Jun‐2008 Oct‐2008 Feb‐2009 Jun‐2009 Oct‐2009 Feb‐2010
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐22
4800
5000
5200
5400
5600
5800
6000
Su
l
f
a
t
e
 (m
g
/
L
)
Sulfate in MW‐22
20
30
40
50
60
Ur
a
n
i
u
m
 (µ
g
/
L
)
Uranium in MW‐22
0
10
20
30
40
50
60
70
80
May‐2008 Sep‐2008 Jan‐2009 May‐2009 Sep‐2009 Jan‐2010
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐22
2.50
2.60
2.70
2.80
2.90
3.00
3.10
3.20
3.30
Jun‐2008 Oct‐2008 Feb‐2009 Jun‐2009 Oct‐2009 Feb‐2010
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐22
4400
4600
4800
5000
5200
5400
5600
5800
6000
May‐2008 Oct‐2008 Mar‐2009 Aug‐2009 Jan‐2010
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐22
0
10
20
30
40
50
60
Nov‐1994 Aug‐1997 May‐2000 Feb‐2003 Nov‐2005 Aug‐2008
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐22
0
10
20
30
40
50
60
70
80
May‐2008 Sep‐2008 Jan‐2009 May‐2009 Sep‐2009 Jan‐2010
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐22
2.50
2.60
2.70
2.80
2.90
3.00
3.10
3.20
3.30
Jun‐2008 Oct‐2008 Feb‐2009 Jun‐2009 Oct‐2009 Feb‐2010
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐22
4400
4600
4800
5000
5200
5400
5600
5800
6000
May‐2008 Oct‐2008 Mar‐2009 Aug‐2009 Jan‐2010
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐22
0
10
20
30
40
50
60
Nov‐1994 Aug‐1997 May‐2000 Feb‐2003 Nov‐2005 Aug‐2008
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐22
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
Time concentration plots for MW-23
12
Chloride in MW‐23
0.90
Fluoride in MW‐23
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
4
6
8
10
12
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Chloride in MW‐23
020
0.30
0.40
0.50
0.60
0.70
0.80
0.90
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Fluoride in MW‐23
0
2
4
6
8
10
12
Aug‐2001 Feb‐2003 Aug‐2004 Feb‐2006 Aug‐2007 Feb‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐23
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
Jun‐2005 Apr‐2006 Feb‐2007 Dec‐2007 Oct‐2008 Aug‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐23
0
2
4
6
8
10
12
Aug‐2001 Feb‐2003 Aug‐2004 Feb‐2006 Aug‐2007 Feb‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐23
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
Jun‐2005 Apr‐2006 Feb‐2007 Dec‐2007 Oct‐2008 Aug‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐23
3000
Sulfate in MW‐23
35
Uranium in MW‐23
0
2
4
6
8
10
12
Aug‐2001 Feb‐2003 Aug‐2004 Feb‐2006 Aug‐2007 Feb‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐23
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
Jun‐2005 Apr‐2006 Feb‐2007 Dec‐2007 Oct‐2008 Aug‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐23
1000
1500
2000
2500
3000
Su
l
f
a
t
e
 (m
g
/
L
)
Sulfate in MW‐23
10
15
20
25
30
35
Ur
a
n
i
u
m
 (µ
g
/
L
)
Uranium in MW‐23
0
2
4
6
8
10
12
Aug‐2001 Feb‐2003 Aug‐2004 Feb‐2006 Aug‐2007 Feb‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐23
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
Jun‐2005 Apr‐2006 Feb‐2007 Dec‐2007 Oct‐2008 Aug‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐23
0
500
1000
1500
2000
2500
3000
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐23
0
5
10
15
20
25
30
35
Aug‐2005 May‐2006 Feb‐2007 Nov‐2007 Aug‐2008 May‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐23
0
2
4
6
8
10
12
Aug‐2001 Feb‐2003 Aug‐2004 Feb‐2006 Aug‐2007 Feb‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐23
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
Jun‐2005 Apr‐2006 Feb‐2007 Dec‐2007 Oct‐2008 Aug‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐23
0
500
1000
1500
2000
2500
3000
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐23
0
5
10
15
20
25
30
35
Aug‐2005 May‐2006 Feb‐2007 Nov‐2007 Aug‐2008 May‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐23
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
Time concentration plots for MW-24
80
Chloride in MW‐24
0.40
Fluoride in MW‐24
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
20
30
40
50
60
70
80
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Chloride in MW‐24
010
0.15
0.20
0.25
0.30
0.35
0.40
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Fluoride in MW‐24
0
10
20
30
40
50
60
70
80
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐24
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐24
0
10
20
30
40
50
60
70
80
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐24
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐24
3500
Sulfate in MW‐24
12
Uranium in MW‐24
0
10
20
30
40
50
60
70
80
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐24
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐24
1000
1500
2000
2500
3000
3500
Su
l
f
a
t
e
 (m
g
/
L
)
Sulfate in MW‐24
4
6
8
10
12
Ur
a
n
i
u
m
 (µ
g
/
L
)
Uranium in MW‐24
0
10
20
30
40
50
60
70
80
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐24
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐24
0
500
1000
1500
2000
2500
3000
3500
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐24
0
2
4
6
8
10
12
Dec‐2005 Dec‐2006 Dec‐2007 Dec‐2008 Dec‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐24
0
10
20
30
40
50
60
70
80
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐24
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐24
0
500
1000
1500
2000
2500
3000
3500
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐24
0
2
4
6
8
10
12
Dec‐2005 Dec‐2006 Dec‐2007 Dec‐2008 Dec‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐24
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
Time concentration plots for MW-25
40
Chloride in MW‐25
045
0.50
Fluoride in MW‐25
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
10
15
20
25
30
35
40
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Chloride in MW‐25
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Fluoride in MW‐25
0
5
10
15
20
25
30
35
40
May‐2005 Mar‐2006 Jan‐2007 Nov‐2007 Sep‐2008 Jul‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐25
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐25
0
5
10
15
20
25
30
35
40
May‐2005 Mar‐2006 Jan‐2007 Nov‐2007 Sep‐2008 Jul‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐25
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐25
1900
1950
Sulfate in MW‐25
6.6
Uranium in MW‐25
0
5
10
15
20
25
30
35
40
May‐2005 Mar‐2006 Jan‐2007 Nov‐2007 Sep‐2008 Jul‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐25
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐25
1550
1600
1650
1700
1750
1800
1850
1900
1950
Su
l
f
a
t
e
 (m
g
/
L
)
Sulfate in MW‐25
52
5.4
5.6
5.8
6
6.2
6.4
6.6
Ur
a
n
i
u
m
 (µ
g
/
L
)
Uranium in MW‐25
0
5
10
15
20
25
30
35
40
May‐2005 Mar‐2006 Jan‐2007 Nov‐2007 Sep‐2008 Jul‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐25
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐25
1400
1450
1500
1550
1600
1650
1700
1750
1800
1850
1900
1950
May‐2005 May‐2006 May‐2007 May‐2008 May‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐25
4.8
5
5.2
5.4
5.6
5.8
6
6.2
6.4
6.6
May‐2005 Mar‐2006 Jan‐2007 Nov‐2007 Sep‐2008 Jul‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐25
0
5
10
15
20
25
30
35
40
May‐2005 Mar‐2006 Jan‐2007 Nov‐2007 Sep‐2008 Jul‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐25
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐25
1400
1450
1500
1550
1600
1650
1700
1750
1800
1850
1900
1950
May‐2005 May‐2006 May‐2007 May‐2008 May‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐25
4.8
5
5.2
5.4
5.6
5.8
6
6.2
6.4
6.6
May‐2005 Mar‐2006 Jan‐2007 Nov‐2007 Sep‐2008 Jul‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐25
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
Time concentration plots for MW-26
80
Chloride in MW‐26
09
1
Fluoride in MW‐26
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
20
30
40
50
60
70
80
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Chloride in MW‐26
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Fluoride in MW‐26
0
10
20
30
40
50
60
70
80
Aug‐2002 Nov‐2003 Mar‐2005 Jul‐2006 Nov‐2007 Mar‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐26
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Sep‐2002 Sep‐2004 Sep‐2006 Sep‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐26
0
10
20
30
40
50
60
70
80
Aug‐2002 Nov‐2003 Mar‐2005 Jul‐2006 Nov‐2007 Mar‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐26
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Sep‐2002 Sep‐2004 Sep‐2006 Sep‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐26
2500
Sulfate in MW‐26
140
Uranium in MW‐26
0
10
20
30
40
50
60
70
80
Aug‐2002 Nov‐2003 Mar‐2005 Jul‐2006 Nov‐2007 Mar‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐26
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Sep‐2002 Sep‐2004 Sep‐2006 Sep‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐26
1000
1500
2000
2500
Su
l
f
a
t
e
 (m
g
/
L
)
Sulfate in MW‐26
40
60
80
100
120
140
Ur
a
n
i
u
m
 (µ
g
/
L
)
Uranium in MW‐26
0
10
20
30
40
50
60
70
80
Aug‐2002 Nov‐2003 Mar‐2005 Jul‐2006 Nov‐2007 Mar‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐26
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Sep‐2002 Sep‐2004 Sep‐2006 Sep‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐26
0
500
1000
1500
2000
2500
Aug‐2002 Nov‐2003 Mar‐2005 Jul‐2006 Nov‐2007 Mar‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐26
0
20
40
60
80
100
120
140
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐26
0
10
20
30
40
50
60
70
80
Aug‐2002 Nov‐2003 Mar‐2005 Jul‐2006 Nov‐2007 Mar‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐26
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Sep‐2002 Sep‐2004 Sep‐2006 Sep‐2008
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐26
0
500
1000
1500
2000
2500
Aug‐2002 Nov‐2003 Mar‐2005 Jul‐2006 Nov‐2007 Mar‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐26
0
20
40
60
80
100
120
140
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐26
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
Time concentration plots for MW-27
45
50
Chloride in MW‐27
0.85
Fluoride in MW‐27
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
15
20
25
30
35
40
45
50
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Chloride in MW‐27
0.70
0.75
0.80
0.85
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Fluoride in MW‐27
0
5
10
15
20
25
30
35
40
45
50
May‐2005 Mar‐2006 Jan‐2007 Nov‐2007 Sep‐2008 Jul‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐27
0.60
0.65
0.70
0.75
0.80
0.85
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐27
0
5
10
15
20
25
30
35
40
45
50
May‐2005 Mar‐2006 Jan‐2007 Nov‐2007 Sep‐2008 Jul‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐27
0.60
0.65
0.70
0.75
0.80
0.85
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐27
600
Sulfate in MW‐27
34
Uranium in MW‐27
0
5
10
15
20
25
30
35
40
45
50
May‐2005 Mar‐2006 Jan‐2007 Nov‐2007 Sep‐2008 Jul‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐27
0.60
0.65
0.70
0.75
0.80
0.85
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐27
200
300
400
500
600
Su
l
f
a
t
e
 (m
g
/
L
)
Sulfate in MW‐27
29
30
31
32
33
34
Ur
a
n
i
u
m
 (µ
g
/
L
)
Uranium in MW‐27
0
5
10
15
20
25
30
35
40
45
50
May‐2005 Mar‐2006 Jan‐2007 Nov‐2007 Sep‐2008 Jul‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐27
0.60
0.65
0.70
0.75
0.80
0.85
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐27
0
100
200
300
400
500
600
May‐2005 May‐2006 May‐2007 May‐2008 May‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐27
27
28
29
30
31
32
33
34
May‐2005 Mar‐2006 Jan‐2007 Nov‐2007 Sep‐2008 Jul‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐27
0
5
10
15
20
25
30
35
40
45
50
May‐2005 Mar‐2006 Jan‐2007 Nov‐2007 Sep‐2008 Jul‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐27
0.60
0.65
0.70
0.75
0.80
0.85
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐27
0
100
200
300
400
500
600
May‐2005 May‐2006 May‐2007 May‐2008 May‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐27
27
28
29
30
31
32
33
34
May‐2005 Mar‐2006 Jan‐2007 Nov‐2007 Sep‐2008 Jul‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐27
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
Time concentration plots for MW-28
120
Chloride in MW‐28
0.80
Fluoride in MW‐28
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
40
60
80
100
120
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Chloride in MW‐28
020
0.30
0.40
0.50
0.60
0.70
0.80
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Fluoride in MW‐28
0
20
40
60
80
100
120
May‐2005 May‐2006 May‐2007 May‐2008 May‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐28
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐28
0
20
40
60
80
100
120
May‐2005 May‐2006 May‐2007 May‐2008 May‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐28
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐28
2600
Sulfate in MW‐28
45
5
Uranium in MW‐28
0
20
40
60
80
100
120
May‐2005 May‐2006 May‐2007 May‐2008 May‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐28
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐28
2200
2300
2400
2500
2600
Su
l
f
a
t
e
 (m
g
/
L
)
Sulfate in MW‐28
1.5
2
2.5
3
3.5
4
4.5
5
Ur
a
n
i
u
m
 (µ
g
/
L
)
Uranium in MW‐28
0
20
40
60
80
100
120
May‐2005 May‐2006 May‐2007 May‐2008 May‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐28
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐28
2000
2100
2200
2300
2400
2500
2600
Aug‐2005 Jun‐2006 Apr‐2007 Feb‐2008 Dec‐2008 Oct‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐28
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
May‐2005 Mar‐2006 Jan‐2007 Nov‐2007 Sep‐2008 Jul‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐28
0
20
40
60
80
100
120
May‐2005 May‐2006 May‐2007 May‐2008 May‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐28
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐28
2000
2100
2200
2300
2400
2500
2600
Aug‐2005 Jun‐2006 Apr‐2007 Feb‐2008 Dec‐2008 Oct‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐28
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
May‐2005 Mar‐2006 Jan‐2007 Nov‐2007 Sep‐2008 Jul‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐28
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
Time concentration plots for MW-29
45
Chloride in MW‐29
1.20
Fluoride in MW‐29
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
10
15
20
25
30
35
40
45
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Chloride in MW‐29
0.40
0.60
0.80
1.00
1.20
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Fluoride in MW‐29
0
5
10
15
20
25
30
35
40
45
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐29
0.00
0.20
0.40
0.60
0.80
1.00
1.20
Jun‐2005 Apr‐2006 Feb‐2007 Dec‐2007 Oct‐2008 Aug‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐29
0
5
10
15
20
25
30
35
40
45
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐29
0.00
0.20
0.40
0.60
0.80
1.00
1.20
Jun‐2005 Apr‐2006 Feb‐2007 Dec‐2007 Oct‐2008 Aug‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐29
3000
3050
Sulfate in MW‐29
14
Uranium in MW‐29
0
5
10
15
20
25
30
35
40
45
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐29
0.00
0.20
0.40
0.60
0.80
1.00
1.20
Jun‐2005 Apr‐2006 Feb‐2007 Dec‐2007 Oct‐2008 Aug‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐29
2700
2750
2800
2850
2900
2950
3000
3050
Su
l
f
a
t
e
 (m
g
/
L
)
Sulfate in MW‐29
4
6
8
10
12
14
Ur
a
n
i
u
m
 (µ
g
/
L
)
Uranium in MW‐29
0
5
10
15
20
25
30
35
40
45
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐29
0.00
0.20
0.40
0.60
0.80
1.00
1.20
Jun‐2005 Apr‐2006 Feb‐2007 Dec‐2007 Oct‐2008 Aug‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐29
2550
2600
2650
2700
2750
2800
2850
2900
2950
3000
3050
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐29
0
2
4
6
8
10
12
14
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐29
0
5
10
15
20
25
30
35
40
45
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐29
0.00
0.20
0.40
0.60
0.80
1.00
1.20
Jun‐2005 Apr‐2006 Feb‐2007 Dec‐2007 Oct‐2008 Aug‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐29
2550
2600
2650
2700
2750
2800
2850
2900
2950
3000
3050
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐29
0
2
4
6
8
10
12
14
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐29
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
Time concentration plots for MW-3
80
Chloride in MW‐3
0.9
Fluoride in MW‐3
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
20
30
40
50
60
70
80
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Chloride in MW‐3
02
0.3
0.4
0.5
0.6
0.7
0.8
0.9
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Fluoride in MW‐3
0
10
20
30
40
50
60
70
80
Jul‐1980 Jul‐1985 Jul‐1990 Jul‐1995 Jul‐2000 Jul‐2005 Jul‐2010
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐3
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐3
0
10
20
30
40
50
60
70
80
Jul‐1980 Jul‐1985 Jul‐1990 Jul‐1995 Jul‐2000 Jul‐2005 Jul‐2010
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐3
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐3
4000
Sulfate in MW‐3
80
Uranium in MW‐3
0
10
20
30
40
50
60
70
80
Jul‐1980 Jul‐1985 Jul‐1990 Jul‐1995 Jul‐2000 Jul‐2005 Jul‐2010
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐3
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐3
1000
1500
2000
2500
3000
3500
4000
Su
l
f
a
t
e
 (m
g
/
L
)
Sulfate in MW‐3
20
30
40
50
60
70
80
Ur
a
n
i
u
m
 (µ
g
/
L
)
Uranium in MW‐3
0
10
20
30
40
50
60
70
80
Jul‐1980 Jul‐1985 Jul‐1990 Jul‐1995 Jul‐2000 Jul‐2005 Jul‐2010
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐3
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐3
0
500
1000
1500
2000
2500
3000
3500
4000
Jan‐1980 Jan‐1986 Jan‐1992 Jan‐1998 Jan‐2004 Jan‐2010
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐3
0
10
20
30
40
50
60
70
80
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐3
0
10
20
30
40
50
60
70
80
Jul‐1980 Jul‐1985 Jul‐1990 Jul‐1995 Jul‐2000 Jul‐2005 Jul‐2010
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐3
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐3
0
500
1000
1500
2000
2500
3000
3500
4000
Jan‐1980 Jan‐1986 Jan‐1992 Jan‐1998 Jan‐2004 Jan‐2010
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐3
0
10
20
30
40
50
60
70
80
Oct‐1979 Oct‐1985 Oct‐1991 Oct‐1997 Oct‐2003 Oct‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐3
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
Time concentration plots for MW-30
180
Chloride in MW‐30
0.60
Fluoride in MW‐30
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
40
60
80
100
120
140
160
180
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Chloride in MW‐30
0.20
0.30
0.40
0.50
0.60
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Fluoride in MW‐30
0
20
40
60
80
100
120
140
160
180
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐30
0.00
0.10
0.20
0.30
0.40
0.50
0.60
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐30
0
20
40
60
80
100
120
140
160
180
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐30
0.00
0.10
0.20
0.30
0.40
0.50
0.60
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐30
1200
Sulfate in MW‐30
9
Uranium in MW‐30
0
20
40
60
80
100
120
140
160
180
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐30
0.00
0.10
0.20
0.30
0.40
0.50
0.60
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐30
400
600
800
1000
1200
Su
l
f
a
t
e
 (m
g
/
L
)
Sulfate in MW‐30
2
3
4
5
6
7
8
9
Ur
a
n
i
u
m
 (µ
g
/
L
)
Uranium in MW‐30
0
20
40
60
80
100
120
140
160
180
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐30
0.00
0.10
0.20
0.30
0.40
0.50
0.60
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐30
0
200
400
600
800
1000
1200
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐30
0
1
2
3
4
5
6
7
8
9
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐30
0
20
40
60
80
100
120
140
160
180
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐30
0.00
0.10
0.20
0.30
0.40
0.50
0.60
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐30
0
200
400
600
800
1000
1200
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐30
0
1
2
3
4
5
6
7
8
9
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐30
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
Time concentration plots for MW-31
160
Chloride in MW‐31
1.40
Fluoride in MW‐31
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
40
60
80
100
120
140
160
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Chloride in MW‐31
0.40
0.60
0.80
1.00
1.20
1.40
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Fluoride in MW‐31
0
20
40
60
80
100
120
140
160
May‐2005 May‐2006 May‐2007 May‐2008 May‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐31
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐31
0
20
40
60
80
100
120
140
160
May‐2005 May‐2006 May‐2007 May‐2008 May‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐31
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐31
600
Sulfate in MW‐31
9
10
Uranium in MW‐31
0
20
40
60
80
100
120
140
160
May‐2005 May‐2006 May‐2007 May‐2008 May‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐31
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐31
200
300
400
500
600
Su
l
f
a
t
e
 (m
g
/
L
)
Sulfate in MW‐31
3
4
5
6
7
8
9
10
Ur
a
n
i
u
m
 (µ
g
/
L
)
Uranium in MW‐31
0
20
40
60
80
100
120
140
160
May‐2005 May‐2006 May‐2007 May‐2008 May‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐31
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐31
0
100
200
300
400
500
600
May‐2005 May‐2006 May‐2007 May‐2008 May‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐31
0
1
2
3
4
5
6
7
8
9
10
May‐2005 Mar‐2006 Jan‐2007 Nov‐2007 Sep‐2008 Jul‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐31
0
20
40
60
80
100
120
140
160
May‐2005 May‐2006 May‐2007 May‐2008 May‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐31
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
Jul‐2005 Jul‐2006 Jul‐2007 Jul‐2008 Jul‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐31
0
100
200
300
400
500
600
May‐2005 May‐2006 May‐2007 May‐2008 May‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐31
0
1
2
3
4
5
6
7
8
9
10
May‐2005 Mar‐2006 Jan‐2007 Nov‐2007 Sep‐2008 Jul‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐31
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
Time concentration plots for MW-32
60
Chloride in MW‐32
0.4
Fluoride in MW‐32
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
20
30
40
50
60
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Chloride in MW‐32
01
0.15
0.2
0.25
0.3
0.35
0.4
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Fluoride in MW‐32
0
10
20
30
40
50
60
Aug‐2002 Nov‐2003 Mar‐2005 Jul‐2006 Nov‐2007 Mar‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐32
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
Aug‐2002 Nov‐2003 Mar‐2005 Jul‐2006 Nov‐2007 Mar‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐32
0
10
20
30
40
50
60
Aug‐2002 Nov‐2003 Mar‐2005 Jul‐2006 Nov‐2007 Mar‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐32
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
Aug‐2002 Nov‐2003 Mar‐2005 Jul‐2006 Nov‐2007 Mar‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐32
3000
Sulfate in MW‐32
4.5
Uranium in MW‐32
0
10
20
30
40
50
60
Aug‐2002 Nov‐2003 Mar‐2005 Jul‐2006 Nov‐2007 Mar‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐32
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
Aug‐2002 Nov‐2003 Mar‐2005 Jul‐2006 Nov‐2007 Mar‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐32
1000
1500
2000
2500
3000
Su
l
f
a
t
e
 (m
g
/
L
)
Sulfate in MW‐32
1
1.5
2
2.5
3
3.5
4
4.5
Ur
a
n
i
u
m
 (µ
g
/
L
)
Uranium in MW‐32
0
10
20
30
40
50
60
Aug‐2002 Nov‐2003 Mar‐2005 Jul‐2006 Nov‐2007 Mar‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐32
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
Aug‐2002 Nov‐2003 Mar‐2005 Jul‐2006 Nov‐2007 Mar‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐32
0
500
1000
1500
2000
2500
3000
Aug‐2002 Nov‐2003 Mar‐2005 Jul‐2006 Nov‐2007 Mar‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐32
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐32
0
10
20
30
40
50
60
Aug‐2002 Nov‐2003 Mar‐2005 Jul‐2006 Nov‐2007 Mar‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐32
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
Aug‐2002 Nov‐2003 Mar‐2005 Jul‐2006 Nov‐2007 Mar‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐32
0
500
1000
1500
2000
2500
3000
Aug‐2002 Nov‐2003 Mar‐2005 Jul‐2006 Nov‐2007 Mar‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐32
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐32
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
Time concentration plots for MW-3A
80
Chloride in MW‐3A
1.80
Fluoride in MW‐3A
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
20
30
40
50
60
70
80
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Chloride in MW‐3A
040
0.60
0.80
1.00
1.20
1.40
1.60
1.80
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Fluoride in MW‐3A
0
10
20
30
40
50
60
70
80
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐3A
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1.80
Jun‐2005 Apr‐2006 Feb‐2007 Dec‐2007 Oct‐2008 Aug‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐3A
0
10
20
30
40
50
60
70
80
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐3A
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1.80
Jun‐2005 Apr‐2006 Feb‐2007 Dec‐2007 Oct‐2008 Aug‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐3A
3900
4000
Sulfate in MW‐3A
40
Uranium in MW‐3A
0
10
20
30
40
50
60
70
80
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐3A
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1.80
Jun‐2005 Apr‐2006 Feb‐2007 Dec‐2007 Oct‐2008 Aug‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐3A
3200
3300
3400
3500
3600
3700
3800
3900
4000
Su
l
f
a
t
e
 (m
g
/
L
)
Sulfate in MW‐3A
10
15
20
25
30
35
40
Ur
a
n
i
u
m
 (µ
g
/
L
)
Uranium in MW‐3A
0
10
20
30
40
50
60
70
80
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐3A
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1.80
Jun‐2005 Apr‐2006 Feb‐2007 Dec‐2007 Oct‐2008 Aug‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐3A
2900
3000
3100
3200
3300
3400
3500
3600
3700
3800
3900
4000
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐3A
0
5
10
15
20
25
30
35
40
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐3A
0
10
20
30
40
50
60
70
80
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐3A
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1.80
Jun‐2005 Apr‐2006 Feb‐2007 Dec‐2007 Oct‐2008 Aug‐2009
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐3A
2900
3000
3100
3200
3300
3400
3500
3600
3700
3800
3900
4000
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐3A
0
5
10
15
20
25
30
35
40
Jun‐2005 Jun‐2006 Jun‐2007 Jun‐2008 Jun‐2009
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐3A
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
Time concentration plots for MW-5
80
Chloride in MW‐5
1.8
Fluoride in MW‐5
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
20
30
40
50
60
70
80
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Chloride in MW‐5
04
0.6
0.8
1
1.2
1.4
1.6
1.8
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Fluoride in MW‐5
0
10
20
30
40
50
60
70
80
May‐1980 May‐1986 May‐1992 May‐1998 May‐2004 May‐2010
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐5
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
May‐1980 May‐1986 May‐1992 May‐1998 May‐2004 May‐2010
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐5
0
10
20
30
40
50
60
70
80
May‐1980 May‐1986 May‐1992 May‐1998 May‐2004 May‐2010
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐5
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
May‐1980 May‐1986 May‐1992 May‐1998 May‐2004 May‐2010
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐5
1600
Sulfate in MW‐5
3
Uranium in MW‐5
0
10
20
30
40
50
60
70
80
May‐1980 May‐1986 May‐1992 May‐1998 May‐2004 May‐2010
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐5
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
May‐1980 May‐1986 May‐1992 May‐1998 May‐2004 May‐2010
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐5
400
600
800
1000
1200
1400
1600
Su
l
f
a
t
e
 (m
g
/
L
)
Sulfate in MW‐5
1
1.5
2
2.5
3
Ur
a
n
i
u
m
 (µ
g
/
L
)
Uranium in MW‐5
0
10
20
30
40
50
60
70
80
May‐1980 May‐1986 May‐1992 May‐1998 May‐2004 May‐2010
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐5
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
May‐1980 May‐1986 May‐1992 May‐1998 May‐2004 May‐2010
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐5
0
200
400
600
800
1000
1200
1400
1600
May‐1980 May‐1987 May‐1994 May‐2001 May‐2008
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐5
0
0.5
1
1.5
2
2.5
3
Nov‐1980 Nov‐1986 Nov‐1992 Nov‐1998 Nov‐2004 Nov‐2010
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐5
0
10
20
30
40
50
60
70
80
May‐1980 May‐1986 May‐1992 May‐1998 May‐2004 May‐2010
Ch
l
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Chloride in MW‐5
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
May‐1980 May‐1986 May‐1992 May‐1998 May‐2004 May‐2010
Fl
u
o
r
i
d
e
 (m
g
/
L
)
Sample Date
Fluoride in MW‐5
0
200
400
600
800
1000
1200
1400
1600
May‐1980 May‐1987 May‐1994 May‐2001 May‐2008
Su
l
f
a
t
e
 (m
g
/
L
)
Sample Date
Sulfate in MW‐5
0
0.5
1
1.5
2
2.5
3
Nov‐1980 Nov‐1986 Nov‐1992 Nov‐1998 Nov‐2004 Nov‐2010
Ur
a
n
i
u
m
 (µ
g
/
L
)
Sample Date
Uranium in MW‐5
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010
White Mesa Uranium Mill Groundwater Monitoring Report
1st Quarter 2010

Tab J
CSV Transmittal Letter

Jo Ann Tischler
From:
Sent:
To:
Cc:
Subject:
Attachments:
Dear Mr.Finerfrock,
Jo Ann Tischler
Tuesday,May 11,2010 9:57 AM
'Dane Finer/rock'
David Frydenlund;Harold Roberts;'Kathy Weinel'
Supplemental 1st Quarter Groundwater CSV Data for All Analytes
C1 001 0826_R2.csv
Denson Mines (USA)Corp.(DUSA)transmitted eiectronic fiies of 1"quarter 2010 laboratory results for groundwater
monitoring conducted under the Groundwater Discharge Permit for White Mesa Mill on May S,2010.The transmittal
inciuded nine attached files.
This transmittai contains one attached file intended to replace file 00010826 transmitted on May 5.Since that date,
Denison Mines and Energy Laboratories (EL)identified an error in EL's analysis of one parameter in monitoring weli MW-
24.EL reanaiyzed the sampie and provided DUSA with corrected results and eiectronic data for this well.The attached
fiie contains the corrected electronic data for MW-24.It also contains the data for all other wells and QC samples
analyzed in the same batch,even though the results for those samples are unchanged.
Please contact me if you have any questions on this transmittal.
Yours truly,
Jo Ann Tischler
Director,Compliance and Permitting
1