DRC-2009-002322 - 0901a0688011d2a0

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White Mesa Uranium Mill
Chloroform Monitoring Report
StateefUtah
Notice of Violation and Groundwater Corrective Action Order UDEQ
Docket No. UGQ-20-01
1** Quarter (January through March)
2009
Prepared by:
Denison Mines (USA) Corp. (DUSA)
1050 17* Street, Suite 950
Denver CO 80265
May, 2009
White Mesa Uranium Mill
ChloroformMonitoring Report
State of Utah
Notice of Violation and Groundwater Corrective Action Order UDEQ
Docket No UGQ-20-01
1st Quarter January through March
2009
Prepared by
Denison Mines USA Corp DUSA
1050 17th Street Suite 950
Denver CO 80265
May 2009
INTRODUCTION
This is the Quarterly Chloroform Monitoring Report as required under State of Utah
Notice of Violation and Groundwater Conective Action Order State of Utah Department
of Enviromnental Quality UDEQ Docket No UGQ-20-0l for the 1st Quarter of 2009
the Quarter for Denison Mines USA Corp.s DUSAs White Mesa Uranium
Mill the Mill This Report also includes the Operations Report for the Long Term
Pump Test at MW-4 TW4-19 TW4-15 MW-26 and TW4-20 for the Quarter
SAMPLING AND MONITORiNG PLAN
2.1 Description of Monitor Wells Sampled During the Quarter
During the Quarter the following chloroform contaminant investigation groundwater
samples and measurements were
taken
2.1.1 Groundwater Monitoring
Groundwater Monitoring was performed in all of the chloroform monitoring wells being
the following wells
MW-4 TW4-ll
TW4-1 TW4-l2
TW4-2 TW4-l3
TW4-3 TW4-l4
TW4-4 TW4-15 MW-26
TW4-5 TW4-16
TW4-6 TW4-l7 MW-32
TW4-7 TW4-18
TW4-8 TW4-l9
TW4-9 TW4-20
TW4-lO TW4-21
TW4-22
The locations of these wells are indicated on the map attached under Tab
Wells sampled during this reporting period were analyzed for the following constituents
Chloroform
Chloromethane
Carbon tetrachloride
Methylene chloride
Chloride
Nitrogen Nitrate Nitrite as
2.1.2 Groundwater Head Monitoring
Depth to groundwater was taken in the following wells and/or piezometers during the
Quarter
All of the chloroform contaminant investigation wells listed in paragraph 2.1.1
above in two measurement events on either March or 10 2009
The point of compliance monitoring wells under the Mills Groundwater
Discharge Permit GWDP on February 2-17 2009
Piezometers P-i P-2 P-3 P-4 and P-5 on February 17 2009
In addition weekly depth to groundwater measurements were taken in MW-4 TW4-15
MW-26 TW4-19 and TW4-20 as part of the long term pumping test for MW-4
2.2 Sampling Methodology Equipment and Decontamination Procedures
The sampling methodology equipment and decontamination procedures that were
performed for the chloroform contaminant investigation during the Quarter can be
summarized as follows
2.2.1 Well Purging and Depth to Groundwater
list is gathered of the wells in order of increasing chloroform contamination
The order for purging is thus established Mill personnel start purging with all of
the non-detect wells and then move to the more contaminated wells in order of
chloroform contamination starting with the wells having the lowest chloroform
contamination and
Before leaving the Mill office the pump and hose are rinsed with de-ionizedDIwaterMillpersonnelthenproceedtothefirstwellwhichisthewell
indicating the lowest concentration of chloroform based on the previous quarters
sampling results Well depth measurements are taken and the two casing
volumes are calculated measurements are made using the same instrument used
for the monitoring wells under the Mills GWDP The Grundfos pump gpm
pump is then lowered to the bottom of the well and purging is begun At the
first well the purge rate is established for the purging event by using calibrated
gallon bucket After the evacuation of the first well has been completed the
pump is removed from the well and the process is repeated at each well location
moving from least contaminated to most contaminated All wells are capped and
secured prior to leaving the sampling location
2.2.2 Sampling
Following the purging of all chloroform investigation wells the sampling takes
place usually the next morning Prior to leaving the Mill office to sample
cooler along with blue ice is prepared The trip blank is also gathered at that time
the trip blank for these events is provided by the Analytical Laboratory Once
Mill Personnel arrive at the well sites labels are filled out for the various samples
to be collected All personnel involved with the collection of water and samples
are the outfitted with rubber gloves Chloroform investigation samples are
collected by means of dedicated bailers and the wells are purged by means of
dedicated portable pump Each quarterly pumping and sample collection event
begins at the location least affected by chloroform based on the previous
quarters sampling event and proceeds by affected concentration to the most
affected location The dedicated portable pump is appropriately decontaminated
prior to each purging sampling event and the QA rinsate sample is collected after
said decontamination but prior to the commencement of the sampling event
Mill personnel use disposable bailer to sample each well The bailer is attached
to reel of approximately 150 feet of nylon rope and then lowered into the well
After coming into contact with the water the bailer is allowed to sink into the
water in order to fill Once full the bailer is reeled up out of the well and the
sample bottles are filled as follows
First set of VOC vials is filled This set consists of three 40 ml vials
provided by the Analytical Laboratory The set is not filtered and is
preserved with HCL
ii Second 500 ml sample is collected for Nitrates/Nitrites This sample is
also not ifitered and is preserved with H2S04 the bottle for this set is
also provided by the Analytical Laboratory
iii Third 500 ml sample is collected for Chloride This sample is not
ifitered and is not preserved and
After the samples have been collected for particular well the bailer is disposed
of and the samples are placed into the cooler that contains blue ice The well is
then recapped and Mill personnel proceed to the next well
DUSA completed and transmitted to UDEQ on May 25 2006 revised Quality
Assurance Plan QAP for sampling under the Mills GWDP The GWDP QAP was
reviewed by UDEQ and has been approved for implementation The QAP provides
detailed presentation of procedures utilized for groundwater sampling activities under the
GWDP While the water sampling conducted for chloroform investigation purposes has
been conformant with the general principles set out in the QAP some of the requirements
in the QAP were not Idly implemented prior to UDEQs approval for reasons set out in
correspondence to UDEQ dated December 2006 Subsequent to the delivery of the
December 2006 letter DUSA discussed the issues brought forward in the letter with
UDEQ and has received correspondence from UDEQ about those issues In response to
UDEQs letter and subsequent discussions with UDEQ DUSA has incorporated changes
in chloroform QA procedures in the form of separate document The chloroform QA
document describes the differing needs of the chloroform investigation program and is
and attachment to the GWDP QAP where QA needs other than those described in the
chloroform QA document are addressed
2.3 Field Data Worksheets
Attached under Tab are copies of all Field Data Worksheets that were completed
during the Quarter for the chloroform contaminant investigation monitoring wells listed
in paragraph 2.1.1 above and sampled either March or 10 2009
2.4 Depth to Groundwater Sheets
Attached under Tab are copies of the Depth to Water Sheets for the weekly monitoring
of MW-4 TW4-15 MW-26 TW4-19 and TW4-20 as well as the monthly depth to
groundwater monitoring data for chloroform contaminant investigation wells measured
during the quarter Depth-to-groundwater measurements which were utilized for
groundwater contours are included on the Field Data Worksheets at Tab of this report
DATA INTERPRETATION
3.1 Interpretation of Groundwater Levels Gradients and Flow Directions
3.1.1 Current Site Groundwater Contour Map
The contour map Tab uses the March 10 2009 data for the wells listed in
paragraph 2.1.2 above February 2-17 2009 data for the wells listed in paragraph
2.1.2 and February 17 2009 data for the piezometers and wells listed in paragraph
2.1.2 above
Also included under Tab is groundwater contour map of the portion of the Mill site
where the four chloroform pumping wells are located with hand-drawn stream tubes in
order to demonstrate hydraulic capture from the pumping
3.1.2 Comparison of Current Groundwater Contour Maps to Groundwater Contour
Maps for Previous Quarter
The groundwater contour maps for the Mill site for the fourth quarter of 2008 as
submitted with the Chloroform Monitoring Report for the fourth quarter of 2008 are
attached under Tab
comparison of the water table contour maps for the Quarter to the water table contour
maps for the previous quarter indicates similar patterns of drawdown related to pumping
of MW-4 MW-26 TW4-15 TW4-19 and TW4-20 Water levels and water level
contours for the site have not changed significantly since the last quarter except for few
locations
reported increase in water level of approximately 13 feet occurred in pumping well
TW4-20 Reported decreases in water levels of approximately feet in pumping well
MW-4 and of approximately 22 feet in pumping well TW4-l9 occurred The water level
.fll4 h.dI ..Z......
in pumping well MW-26 TW4-15 also decreased by more than foot although the
exact decrease is unknown due to the water level sounder hitting snag during water
level sampling
Water level fluctuations at pumping wells MW-4 MW-26 TW4-15 TW4-19 and
TW4-20 are due in part to fluctuations in pumping conditions just prior to and at the time
the measurements are taken The largest increase decrease in drawdown of
approximately 13 feet occurred at TW4-20 and the largest decrease increase in
drawdown of approximately 22 feet occurred at TW4-1
3.1.3 Hydrographs
Attached under Tab are hydrographs showing groundwater elevation in each
chloroform contaminant investigation monitor well over time
3.1.4 Depth to Groundwater Measured and Groundwater Elevation
Attached under Tab are tables showing depth to groundwater measured and
groundwater elevation over time for each of the wells listed in Section 2.1.1 above
3.1.5 Evaluation of the Effectiveness of Hydraulic Capture
Perched water containing chloroform has been removed from the subsurface by pumping
MW-4 MW-26 TW4-15 TW4-19 and TW4-20 The purpose of the pumping is to
reduce total chloroform mass in the perched zone as rapidly as is practical These wells
were chosen for pumping because they are located in areas of the perched zone having
relatively high permeability and saturated thickness and high concentrations of
chloroform were detected at these locations The relatively high transmissivity of the
perched zone in the vicinity of the pumping wells results in the wells having relatively
high productivity The combination of relatively high productivity and high chloroform
concentrations allows high rate of chloroform mass removal
The impact of pumping these wells is indicated by the water level contour maps attached
under Tabs and Cones of depression have developed in the vicinity of the pumping
wells which continue to remove significant quantities of chloroform from the perched
zone The water level contour maps indicate that effective capture of water containing
high chloroform concentrations in the vicinity of the pumping wells is occurring As
noted in Section 3.1.2 an increase in water level decrease in drawdown occurred at
TW4-20 and decreases in water levels increases in drawdowns occurred at MW-A and
TW4-l9 between the fourth quarter of 2008 and the first quarter of 2009 Overall the
combined capture of MW-4 MW-26 TW4-15 TW4-l9 and TW420 has not changed
significantly since the last quarter The increase in drawdown at TW4-19 and the
decrease in drawdown at TW4-20 has increased and decreased respectively the
apparent capture
zones of the wells relative to that of other nearby pumping wells
.....e...w........isM...d it .._.
Although high chloroform concentrations exist at some locations downgradient of the
pumping wells for example near TW4-4 the low permeability of the perched zone at
these locations would prevent significant rates of chloroform mass removal should these
wells be pumped By pumping at the more productive upgradient locations however
the rate of downgradient chloroform migration will be diminished because of the
reduction in hydraulic gradients and natural attenuation will be more effective
3.2 Interpretation of Analytical Results
3.2.1 Copy of Laboratory Results
Included under Tab of this Report are copies of all laboratory analytical results for the
groundwater quality samples collected under the chloroform contaminant investigation
on March 11 2009 along with the laboratory analytical results for trip blank
3.2.2 Electronic Data Files and Format
DUSA has provided to the Executive Secretary an electronic copy of all laboratory
results for groundwater quality monitoring conducted under the chloroform contaminant
investigation during the Quarter in Comma Separated Values CSV copy of the
transmittal e-mail is included under Tab
3.2.3 Current Chloroform Isoconcentration Map
Included under Tab of this Report is current chloroform isoconcentration map for the
Mill site
3.2.4 Data and Graphs Showing Chloroform Concentration Trends
Attached under Tab is table summarizing chloroform and nitrate values for each well
over time
Attached under Tab are graphs showing chloroform concentration trends in each
monitor well over time As TW4-14 was previously dry and wells TW4-23 4-24 and 4-
25 have limited data trend graph for that well has not been included but will be
included with the 4th Quarter report as sufficient data will have been collected at that
time
3.2.5 Analysis of Analytical Results
Comparing the analytical results to those of the previous quarter as summarized in the
table included under Tab the following observations can be made
Chloroform concentrations have increased by more than 20%in the following
wells compared to last quarter TW4-5 and TW4-6
Chloroform concentrations have decreased by more than 20%in TW4-15 TW4-
19 and TW4-22 compared to last quarter and in TW4-20 compared to the third
quarter of 2008
Chloroform concentrations have remained within 20%in the following wells
compared to last quarter MW-4 TW4-1 TW4-2 TW4-4 TW4-7 TW4-l0
TW4-1 TW4-18 and TW4-21
Chloroform concentrations at TW4-16 decreased from 3.9 tgfL to non-detect
and concentrations at TW4-24 increased from non-detect to 1.4 jtg/L and
TW4-3 TW4-8 TW4-9 TW4-12 TW4-13 TW4-14 MW-32 TW4-17 TW4-
23 and TW4-25 remained non-detect
In addition between the fourth quarter of 2008 and the first quarter of 2009 the
chloroform concentration in well TW4-2 increased slightly from 170 ggfL to 180 j.tg/L
and the concentration in well TW4-22 decreased from 630 j.tgfL to 390 jig/L Between
the third quarter of 2008 and the first quarter of 2009 the concentration in pumping well
TW4-20 decreased from 21000 ig/L to 8200 tg/L TW4-20 was not analyzed for
chloroform in the fourth quarter of 2008 Wells TW4-23 and TW4-25 remained non-
detect for chloroform and the concentration in well TW4-24 increased from non-detect
to 1.4 j.tgfL TW4-24 located west of TW4-22 and TW4-25 located north of TW4-2
bound the chloroform plume to the west and north
Chloroform concentrations in TW4-6 which was the most downgradient temporary
perched well prior to installation of temporary well TW4-23 increased from 37 jsg/L to
81 pg/L bringing it for the first time just within the chloroform plume This well likely
remained outside the chloroform plume between installation in the second quarter of
2000 and the fourth quarter of 2008 due to combination of slow rates of
downgradient chloroform migration in this area due to low permeability conditions and
the effects of upgradient chloroform removal by pumping and natural attenuation
TW4-23 continues to bound the chloroform plume to the south
3.3 Quality Assurance Evaluation And Data Validation
Quality assurance evaluation and data validation procedures in effect at the time of
sampling were followed These involve three basic types of evaluations field QC
checks Analytical Laboratory checks and checks performed by DUSA personnel as
described below
3.3.1 Field OC Checks
Field Quality Control samples for the chloroform investigation program consist of field
duplicate sample field blank and trip blank These check samples are to be generated
for each quarterly sampling episode During the Quarter of 2009 duplicates TW4-
65 duplicate of TW4-17 and 4-70 duplicate of TW4-2 DI blank TW4-60 rinsate
TW-4-63 and trip blank were collected and analyzed The results of these analyses
are included with the routine analyses under Tab
3.3.2 Analytical Laboratory OA/QC Procedures
The Analytical Laboratory has provided summary reports of the analytical quality
assurance/quality control QA/QC measurements necessary to maintain conformance
with NELAC certification and reporting protocol The Analytical Laboratory QA/QC
Summary Report including copies of the Mills Chain of Custody and Analytical
Request Record forms for the September sampling event are included under Tab
3.3.3 Mill OA Manager Review
The Mill QA Manager which for these sampling events was DUSAs Manager of
Environmental Affairs performed four types of reviews determination of whether Mill
sampling personnel followed Mill sampling procedures review of the results from the
Field QC Checks review of analytical reports for holding times and qualifying
indicators for the data and review of the Analytical Laboratory QA/QC analysis The
results of the QA Managers review are discussed below
Adherence to Mill Sampling SOPs
On review of adherence by Mill personnel to the sampling procedures summarized in
Section 2.2 above the QA Manager concluded that such procedures had been followed
Results From Field QC Checks
The duplicate samples of TW4-l7 and TW4-2 indicated relative percent
difference within the prescribed standard of 20%for those parameters duplicated
However chloroform presence was indicated in the field blank and rinsate
samples The matter of continued chloroform presence in these field blank and
rinsate samples remain under investigation on the part of the QA Manager
During the Quater report period it was noted that field blank de-ionized water
continued to yield trace volatile organic presence i.e Chloroform This matter
was further investigated by the QA manager and corrective measures included
confirmation that purchased de-ionized water had in fact been used for the
field blank and two sets of purchased de-ionized waters samples were
prepared and duplicate sets were sent to each of two contract laboratories
Energy Lab and AWAL Both Labs continued to report the presence of low
concentration Chloroform in all of the purchased water samples e.g
approximately 30 pb Concurrently these low concentrations of Chloroform
were found in the Quarter field blanks as well During the QA review for the
preparation of the 4th Quarters report it was discovered that in fact what was
purchased is the resin used to treat the water and not the water itself
Accordingly samples of pretreated water treated water and the field blanks
themselves were planned for analysis in order to further isolate the cause of this
low level contaminant source Field blanks were collected during the Quarter
and the matter was discussed at length with onsite laboratory personnel however
the samplings for pre and post treatment DI water were not collected until the 2111
Quarter Accordingly the results of that testing will be evaluated within the 21u
Quarter Report
Review ofAnalytical Laboratory QA/QC Analysis andAnalylical Reports
The QA Manager reviewed the Analytical Laboratorys QA/QC Summary Reports and
made the following conclusions
Check samples were analyzed for each method used in analyzing the
Chloroform investigation samples These methods were
Parameter Method
Nitrogen Nitrate Nitrite as E353.2
Chloroform E624
Carbon tetrachloride E624
Chloromethane E624
Methylene chloride E624
Chloride A4500-CL
ii The check samples included at least the following method blank
laboratory control spike sample matrix spike and matrix spike
duplicate
iii All qualifiers if any and the corresponding explanations in the summary
reports are reviewed by the QA Manager The only qualifiers reported
were for matrix interference in some of the analyzed monitoring location
samples however the reporting limit was maintained below the
parameter standard in these instances
iv The laboratory holding time for all analyses was within chloroform
specification and sample temperature was acceptable upon receipt
LONG TERM PUMP TEST AT MW-4 TW4-15 MW-26 TW4-19 ANt
TW4-20 OPERATIONS REPORT
4.1 Introduction
As part of the investigation of chloroform contamination at the Mill site IUSA has been
conducting Long Term Pump Test on MW-4 TW4-l9 TW4-15 MW-26 and TW4-
20 The purpose of the test is to serve as an interim action that will remove significant
amount of chloroform-contaminated water while gathering additional data on hydraulic
properties in the area of investigation The following information documents the
operational activities during the Quarter
4.2 Pump Test Data Collection
The long term pump test for MW-4 was started on April 14 2003 followed by the start
of pumping from TW4-19 on April 30 2003 from TW4-15 MW-26 on August 2003
and from TW4-20 on August 2005 Personnel from Hydro Geo Chem Inc were on
site to conduct the first phase of the pump test and collect the initial two days of
monitoring data for MW-4 ITJSA personnel have gathered subsequent water level and
pumping data
Analyses of hydraulic parameters and discussions of perched zone hydrogeology near
MW-4 has been provided by Hydro Geo Chem in separate report dated November 12
2001 and in the May 26 2004 Final Report on the Long Term Pumping Test
Data collected during the Quarter included the following
Measurement of water levels at MW-4 TW4-19 TW4-15 MW-26 and TW4-
20 on weekly basis and at selected temporary wells and permanent monitoring
wells on monthly basis See Section 3.1 and Tabs and for discussion of
the water levels
Measurement of pumping history
pumping rates
ii total pumped volume
iii operational and non-operational periods
Periodic sampling of pumped water for chloroform and nitrate nitrite analysis
and other constituents as discussed in detail in Section 3.2 above
4.3 Water Level Measurements
Beginning August 16 2003 the frequency of water level measurements from MW-4
TW4-l5 MW-26 and TW4-l9 was reduced to weekly From commencement of
pumping TW4-20 water levels in that well have been measured weekly Depth to
groundwater in all other chloroform contaminant investigation wells is monitored
monthly Copies of the weekly Depth to Water monitoring sheets for MW-4 TW4-lS
MW-26 TW4-19 and TW4-20 and the October and December monthly Depth to Water
monitoring sheets for all of the chloroform contaminant investigation wells are typically
included under Tab but will be transmitted separately on December 2008 Monthly
depth to water measurements are recorded in the Field Data Worksheets included under
Tab
10
4.4 Pumping Rates and Volumes
L4.1 MW-4
Approximately 90710 gallons of water were pumped from MW-4 during the Quarter
The average pumping rate from MW-4 when the pump was pumping was
approximately 4.0 gpm throughout the Quarter The well is not purging
continuously but is on delay device The well purges for set amount of time and
then shuts off to allow the well to recharge Water from MW-4 was transferred to the
Cell evaporation pond through pipeline installed specifically for that purpose At
the end of the 3rd Quarter 2008 and since commencement of pumping on April 14
2003 an estimated total of approximately 1908170 gallons of water have been
purged from MW-4 TW4-19
4.4.2 TW4-19
Approximately 469100 gallons of water were pumped from TW4-19 during the
Quarter The average pumping rate from TW4-19 when the pump was pumping was
approximately 6.0 gpm throughout the Quarter The pump in this well is operating on
delay It pumps for approximately one and half minutes and then is off for two to
three minutes Water from TW4-19 was directly transferred to the Cell evaporation
pond through pipeline installed specifically for that purpose At the end of the
Quarter 2007 and since commencement of pumping on April 30 2003 an estimated
total of approximately 9692250 gallons of water have been purged from TW4-19
4.4.3 TW4-15 MW-26
Approximately 52970 gallons of water were pumped from TW4-1 MW-26 during
the Quarter The average flow rate from TW4-15 when the pump was pumping was
approximately 1.5 gpm throughout the Quarter The well is not purging continuously
but is on delay device The well now purges for set amount of time and then shuts
off to allow the well to recharge The water is directly transferred to the Cell
evaporation pond through pipeline installed specifically for that purpose At the end
of the 1g Quarter 2006 and since commencement of pumping on August 2003 an
estimated total of approximately 1273940 gallons of water have been purged from
TW4-15 Note The meter for this well was replaced during the period
4.4.4 TW4-20
Approximately 52050 gallons of water were pumped from TW4-20 during the
Quarter The average flow rate from TW4-20 when the pump was pumping was
approximately 6.0 gpm throughout the Quarter The well is not purging continuously
but is on delay device The well pump is set on water elevation device When the
water reaches set point the pump turns on until the water level drops to another set
point The water is directly transferred to the Cell evaporation pond through
pipeline installed specifically for that purpose Since commencement of pumping on
11
August 2005 an estimated total of approximately 1035700 gallons of water have
been purged from TW4-20
4.5 Daily Inspections
Denison has submitted an Operations and Maintenance Plan Chloroform Pumping
System White Mesa Mill Blanding Utah Revision 1.0 to UIDEQ for approval Upon
approval of that plan the Mill will commence documenting its daily inspections of the
operational status of the chloroform pumping wells on the daily inspection form an
example of the form of which is attached as Tab Operational Problems
No operational problems in the pumping wells were reported during the Quarter 2009
period
4.7 Conditions That May Affect Water Levels in Piezometers
No significant amount of water was added to any of the three wildlife diversion ponds
during the Quarter
4.8 Chloroform Analysis
Monthly chloroform sampling ceased on November 2003 From that time all
chloroform contaminant investigation wells were sampled on quarterly basis The
sample results are discussed above in Section 3.2
5.0 CONCLUSIONS AND RECOMMENDATIONS
The water level contour map for the Quarter indicates that effective capture of water
containing high chloroform concentrations in the vicinity of the pumping wells is
occurring
Between the fourth quarter of 2008 and the first quarter of 2009 the chloroform
concentration in well TW4-21 increased slightly from 170 .tgfL to 180 jxg/L and the
concentration in well TW4-22 decreased from 630 pgIL to 390 j.tgfL Between the third
quarter of 2008 and the first quarter of 2009 the concentration in pumping well TW4-20
decreased from 21000 j.tg/L to 8200 sgIL TW4-20 was not analyzed for chloroform in
the fourth quarter of 2008 Fluctuations in concentrations in these wells are likely related
to variations in pumping in TW4-20 and nearby wells and their location near the
suspected former office leach field source area Regardless of these measured fluctuations
in chloroform concentrations sampling of temporary wells TW4-24 located west of
TW4-22 and TW4-25 located north of TW4-21 indicated these wells remain outside
the chloroform plume and thus bound the plume to the west and north Chloroform was
not detected at TW4-25 and was detected at concentration of 1.4 jtgfL at TW4-24
The chloroform concentration at downgradient well TW4-6 increased from 37 to
81 gfL bringing this well just within the plume for the first time Although fluctuations
12
.........._...........a........_
in concentrations have occurre4 this well likely remained outside the chloroform plume
between installation in the second quarter of 2000 and the fourth quarter of 2008 due to
combination of slow rates of downgradient chloroform migration in this area due to
low permeability conditions and the effects of upgradient chloroform removal by
pumping and natural attenuation Chloroform remained non-detect at downgradient
temporary well TW4-23 which continues to bound the chloroform plume to the south
Continued pumping of MW-4 MW-26 TW4-15 TW4-19 and TW4-20 is
recommended Pumping these wells regardless of any short term fluctuations in
concentrations detected at the wells such as at TW4-20 helps to reduce downgradient
chloroform migration by removing chloroform mass and reducing average hydraulic
gradients thereby allowing natural attenuation to be more effective
13
II
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/I
II
OTW4-5
TW4-1 6YTw49
OTW4-3 0TW4-1
T37S
T38S
00TW4-14
//
SCALE IN FEET
perched mon4toring well
temporary perched monitoring weD
perched piezometer
perched monitoring well
installed April 2005
temporary perched monitoring
well installed ApriL2005
wildlife pond
HYD14O
GEO
CHEM INC
SITE PLAN
AND PERCHED WELL LOCATIONS
WHITE MESA SITE
RENCE
HJ71 8000/mayO9/welloc.srf
temporary perched monitoring well
installed Mav2007
............l.................L..4.......
Mill Groundwater Discharge Perniit
Groundwater Monitothig
Quality Msurance Plan QAP
Date 2.25.07 Revision
Page4Oof4l
ATTACIHIIt4IIENT 11
WIHUITE PAHESA URANIFUM MIELL
F1ERUID DATA WOEKSIHEEfl FOR GROUND WATER
Description of Sampling Event r tnt
Sampler
Location well name 2JkP II IAJ Name and initials4aanr /1
Date and Time for Purging .3 Z0O7_and Sampling if different_________________
Well Purging quip Uset Aiump or ..jailer Well Pump if other than J3ennet Jt/sa47 Lr
Sampling Event cit 6ro fts Prey Well Sampled in Sampling Event p4
pH Buffer 7.0 --O pH Buffer 4.0
Specific Conductance qq uMHOS/cm Well DepthS
Depth to Water Before Purging Casing Volume 49 Well .653k
3K Welt .367k
Conductance avg pH of Water avg
Welt Water Temp avg___________Redox Potential Efi Turbidity
Weather Cond.f/tv S11..t01-ft--Bxtl Atub .pdorto sampling event
net ..CML Purged Tit 3aJ Purged
Conductance 2t CondiIctance__________________________
pH
Temperature 3.Cj7 TemperatureX
Redor Potential Bk VA Redox 9thIl Bk_____________
Turbidity 1-63 TU4$IJ___________________
Ti e_________Gal Purged
Conductan __--
pH /7
Temperature
Tipie
Conduct
GaLPurged
Temperature
pRy
2K
Redox Redox PoteyS1hL
Mm Groundwater Discharge Pemæt
Groundwater Monitoring
QualiW Assurance Plan QAP
Date 1117.06 Revision
Thrbidity
Page4l of 41
Volume of Water Purged When Field Parameters are Measured__________________
Pumjing Rate Calculation
Flow Rate 03 in gpm
5/60 _____
Time to evacuate two casing volumes 21/
T2VIQ
Number of casing volumes evacuated If other than two_
If well evacuated to dryness number of gallons evacuatet
Name of Certified Analytical Laboratory if Other Than Energy Lab
Tyne ot$adn Snounk
Taken
circle
$SAile Volume
iædfcatØif other
ththiaS specWcd
below
Filtered
circle
Preservative Added
circle
VOCs 3x40m1 HCL /7
Nutrients lOOm H2SO4
IlØavyMetals 250th1 Bl4O3
All Other Non-
Radiologics
250m1 NoPresØrvativeAdded
GrossAipha
Other specify
UkNct0 JlfnJ/4kAS
L000mI
Sampl volume
HSO
Ifapreservativeisused
Specify Type and
Quantity of Peservalive
Onmmnt dfc IOt4flDZ /1 ---r7r7ca7-
GotnSwatur Disthaie Feinriit
iindwater otiing
Quality AsauraacePThn QAP
Date 2.25.07 Levisioa
Page 40 of 4k
MLTACIHII%4IIENTI1
WIIIIIITE IMIIA 1LJ1A1kRh11JM alL
IMDZLITh DATA WOEXLSIHIIEIE FO11 GIIOUMb WATER
Descæptioo of Sampling Event ST onra ri-i latiFo/Lw
Sampler
Location weVi name 72i/9-WantØ alid initials irte.-/Ja//J7 Rna 4ivne.r
DateandTimeforPurging.2 10 2dOc7 andSampliugifdiffeivnt /J
Well Purging Equip Ueath 4iuiip or ..jailer Welt Pump if other than Beunet
Sampling Event cit Prey Well Sarnpd in Sampling Event 76U F/
pH Bufferl.O________________pkBuffer4O
Specific Conductance uM$IOS/ctn Wl Pt I/f
Depth to Water IBefore rgingjL4 Casing Volume Well 32 765 .6531i
Welk .367W
Coadethiuce avg_________________pH btWater avg._
Well Water Temp avgLT Reddg Potedtial Ii eyurbzdlty
Weather Cond C/es cn14/J Extl Arab Temp priorto sampling event
Time Ifl3 Cml Purged Tu Gal Purged
condudpce 2-SO oitducIhec
pH L1 plt.
Temperature RS Temperature
RŁdoxPotnthlEh 57 o4h
Tinbidity X3 idity
GaL Purged
TomnPrature
otential SI
Mill GrotSwaterDischsrge Permit Date 11.11.06 Eevkioa
Omuadwater Monibriag
QuASePISSQAP Page 41 of 41
Volume of Water Purged When PieMaameteneaieMeaauaerL_________________
ppjnnRateCalcuWion
Flow Rate in gpa Time to evacuate tycasiag vqhunes 2V
5160 ______________TZV/Q Jf -a.
Number of casing volumes evacuated if other than two_______________
If welt evacuated to dryness number of gallons evacuated
Name of Certified Analytical Laboratory if Other Than Thiergy Labs
afSnanile SaSS
Takn
fcfrdlie
j1e.Vohnu
SdjcatiWdthØr
ikSIinisheclfled
Sow
IFiltered
cfrdeI
IPresentftve Added
circle
VOCs
Ot
31140m1.YYP in
Nutrients 100 in iq
250Sf 111403
AIF Othii Non-
Radiologica
YN 250S NWethrvativeAdded
GrossAlpha
Other specify
evnrJ .ctt.ttt
LI
1000ml
SamptS volume
LLS0 YN
$t
if preservative is used
Specify Type and
Quantity of PtØserivative
nmments At-C er /017 tieic II ian p1c
Jgr 4n 6//tp-cnZr/427
Setnrf/i tn /tlK $H a.r 11/8 %pr
.......r......-..............h ...I ......i......
Mill GaatSwateiDiscbaaga P3tnit
Groundwater iWoaitcSg
QuaIiy Asstrance Plan QAP
jj
Date 2.25.07 IPayision
Page4Oof4i
MLTAC1HliMll1kPF
WIfflJITIE R4IIA VIIkANWUM E4IILLL
kflEffiD DATA WOSJHEIIiT 111DM GROUJkPDJ WMI7ER
Descriplrn of Sampling Event AaiLnn
Sampler
Location well name tb WaS and hultials 1-R1m 4Ivte.r
Date awl Time for Purging /0 24O7 and Sampling if different Ji
Well Pinging Equip Useth or_bailer Well Pump if other than Bennetiju 4/
Sampling Event d-t ocoa Patv Well Sampled in Sampling Event 7L
pllBuffer7i
Specific Conductance qq uMHOS/cnu Veil Depth /21.f
Depth to Water Before Purging 4t 77 Casing Volume WellJ7_.653h
We 36Th
Condtucflice aVg____________ptEot Waler avg_
Well Water Temp avg___________Redoz OEei4 nh ETurbidity_
Weather Cond rfa4r Lii Eictl Mnb Temp puor to sampling event
Tune WS lal Purged 4a
Tfltik 3al Purged
Condiiclance %\Conducitu
Temperature
iU
iuperatnm_L
Redox Potentjal
Turbidity c5
rnii
PRN
Gal Purged____conce__mn
Condu
Gal Purged________
TevnPeratr.._
mU____
pg
Tenetiirn
RedoR$al S________
-4
Mill uodwaterDichgePeaait
ouadwater lWonitoitg
Quay Assarance lisa QAP
Date 1L17.06 Revisiox
Turbidity___
Page 41 of 41
Volume of Water Purged When Pigld
lflV Rate Calculation
Flow Rate fin gpm
8160 _____
Time to evacuate two casing volumes ZV
T2V/Q /1 fr11
Number of casing volumes evacuated if other than two_
If well evacuated to dryness number of gallons evacuatd__________________
Name of Certified Analytical Laboratory if Other Than Energy Labs
TakendSe
SSUle Volume
fiiitifthØr
tliSaa.specffied
tielii
Filtered
dSe
PreservSive Mlded
citele
vocs H.N k40th1 HCL
MitriSs itMimi $3 HO4
HiavyMetals 25thiitt 1tbtO..
All Other Nba-
Radiologics
250S1 N.NoprbsÆvatlveAdded
3rossAlpba 1060ml H2SO
Other specify
evinrJ
Sanipl volume bt
If preservative is used
Specify Type and
Quantity of Preservative
fj
SaryIi 4e4-c ar /tw mo/f cr 770 hpr Str
Cqpiinents r2 44tt a-r /hz/Ll it II 1tre.cr 1c pacc
Miell ii /1 Alio nc //
Mill GouadwatarDischag Penuli
ouedwaer Moaitoæaig
Quality Msurance Plan GAP
pH
at Purged
Temperature Temperature
Re1loxP utial Eli
Date 2.25.07 Pevision
Page 40 of 411
A7ITACIHIIMIEIkJTII
W1HIIITE IMIIE4 EJRMkWUM MIlL
PBELD DATA WO1JSffiIIEfl OR GROU1kID WATE1
Deacription ofSamplthgThvene t5lcctwt 4%cncw
Sampler
Location welil name 77j Wam Sd initials 7vsnr
DateandTimeforPurging and SaiuplingIdifferent 1/.200/
Well Purging equip Useth ijthpor Well Pump if other than Bennet Lci.qnrf ic
SamplingEventL 4rnpa-Prey Welt Sampled in Sampling Event 7LO -7
pflBufferl.0 pllBuffer4M________________
Specific Conductance 7t uMHOSIcin WelPeth /00
Depth to Water Before Purging Si Casing Volume Well .653h
3ff Well 36Th
pif ofWater avg____________________
Welt Water Temp avg____________Rhdo teiitaL flirbzdzty
Weather Condjlkstsr Ext Amb Temp pior to sampling event /d
Time ro9t Gal Puigs Lurged 7/
CohdOcfaace ohductan.
p0 7.I pa
Temperature Temperature_________________
Redox Potential Eli RedoxJeiil Eli____________
Turbidity IS Turl$iity__________________
Titne Gal.PurgedConce____
Mill Groundwater Disvharge FernS
Cioundwater Monitoring
Quality Msurance Plan QAP
Date tLI7.O6 eulsion
Page4l o141
Volume of Water Purged
ggpjpg Rate Calculation
Flow Rate in gprn
_____
Time to evacuate two casing volumes 2V
TZV/Q /1
Number of casing volumes evacuated if other than two
if well evacuated to dryness number of gallons evacuated____________________________
Name of Certified Analytical Laboratory if OthertwnEnergy Labs
zifSnmPle $g
Xakei
ebtie
SiælileVnbnae
fiSicatŁittbØrŁeied
belsvi
Filtered
4g1
Preservative Added
cirelh
vocs
Nutrients
.N
loolni
y4p
cV
Ha
ifz$04 fl
HÆavyMetals 1C 25Ol lIMO3
All Other NØn-
Radiologics
250S NoPresØrvativeAdded
GrossAipha i000mI H2S04
Other specify
tiio4 irnM4us
Sample volume
If preservative is used
Specify Type and
Quantity of Preservative
/nWWaSAtI
87/lCcd ar /62R
/637 Jrn sue-
ictnief
/t/4 j/j
c1i9Z
Jyz
/7f4pt /ecsc.e c.c
/7 fiA
3d Thwe iv-/tw /2ejer 1Ct -Scnoi4C4J/AJr //t /tY-tC
I............l............r
Mill Croamilwater Disciage WaiSt
Groundwater Monitoring
QuS Msurance IPIm QAP
Date 2.25.07 Jievision
Page 40 of4X
PHNV
Tempentare
Redo.PntiaI Rh_______________
ATTA4C1ifMNT ii
ThVJFIE M1EA UIIIANHUM JMBULL
WHEffS IDATA WORWSIHIIEET Jl\DR GllOU1D WAT
Description of Sampling EveBtj 4Ae1mF
Sampler..
Location well uaiaet 7W HaS afid imEiatfl4O -1 4a
Dale and Time for Purging .3 ZCXf Jmd Sampling if different 3-67
Well Purging Equip IJsed or_bailer Well Pump if other than Rennet Lin4
Sampling Event rhAwisw-PreP Well Sampled in Sampling Event 77U
pHBuffer7.0 716 pHBufferto ..qo
Specific Conductance flg uXVIKOSIem wq Depth 1/%i
Depth to Water Before Purging IL Casing Volume Well flJ$.653h
Well..36Th
Conductance atrg p11 i%ter avg___________________
Well Water Temp avg_Redo 1oteiitMl Ilk crurbidity______
Weather Co id.Sr4 letschis Extl MS Teinp.pior to wunpling event /2 Cs
Time hi Purged 2L.I Thpw Gal Purged
Condnciauce Condu
Temperature jq -55 Temperature
Redwc Potential Rh Redox Rh
Turbidity 23-3 Turl$iiity
uchqF
Gal PurgedZ tiq GaL-Purged
Condumnce_________________
pH
Tempentum
RtdoxptdEh
.4
M31-hargePemiit Date 11.17.06 Revision
Groundwater MoiætoSg
Quality Msuraace Plan QAP Page 41 of 41
Tuthiclity________________Turbidity__________________
Volume of Water Purged WhiSiesaeaaumd__________________
gping Rat luJation
Flow PS QJ in gpm Time to evacuate two casing volumes 2V
8160 _______________TZV/Q /7
Number of casing volumes evacuated if other than two____________________________
If well evacuated to dryness number of gallons evacutd____________________________
Name of Certified Analytical Laboratory if Other Than nergy Labs
innfSnaS $umn
Taken
cht
SaSla Voinme
flsleaSltihØr
thSasspeened
Filtered
fefrele
Pregenrnilive Added
fkele
VOCs
Nutrients
HØavyMetals
3140ml
lOOm2fl
RCLO4 fl
lIMO3.
MI OrbS Non-
Radiojpgics
25Gtht NoPresOrvativeAdded
GroasAipha 100JmI 112804
Other specify
Cleiueod frnYcc
Sample volume
If preservative is used
Specify Type and
Quantity of Preservative
CQmments btT6-4flit jgs TZiACC if fion 4c4e.4r
%.e7//yce ear /3SK R4-4 Je/J Cra S/I 41CMnc
fniclctr /YAti I.-sr r-i9f1
_Sckw.pfr /zr Thnw /ew /2ee_r-/jCc
Feicnr .t 4/fA/efe tier ..r J37_2_7-Fr ar
MIII C-ndwaferDistharge Pemi Date 2.25.07 Revisbn
ouadwater iWoScriag
QuaJIi4 Asanrance Pun QAP Page 40 of 411
ATTACfflII141liNT
WIIffII1E JMIIEA VIIAPJ1IUM 4IIII1JL
PIIELIII DATA WOII1BIII1ET FOul GIIIOUND WA1IIM
Desthption of Sampling Event 6Jiinnt t4kuwm
Sampler
Location well name TLI.JIr Name ad th sjn
Date and Time for Purging .5 30 and Sampling if different .3 a7
Well Purging Equip Used 4np or_bailer Well Pump if other than Eennet Thinr
Sampling Event4LaCf chLmc1tw Prey Well Sampled in Sampling Event 7N 4-
pllBuffer7.0 76 pRl3uffer4.O .4O
Specific Conductance_fl_uIVIHOS/cn WU Depth I-RI 7ST
Depth toWaterBeforePurging STS qo Casing Volume Well .653h
Well.36Th
Condtgttaitce atg p11 6$fitaS avg ta_______
Welt Water Temp avg________Reddk EotentSEh turbzdity_____
Weather Cond naii.-.Extl.Arnb TŁrnp.pribrto aa ptidfevºht /Z4c
Time 15 lal PurgeL CO TRpe Gal Purged
Conductance I6D COæ .-
pH 7.03 p11
TemperaturejC Temperature VN
Redox Potential Eli______________Redox Po fiat Eh
Turbidity Turl$iiity
GaLPurged Ti GaLPurgedlb____
Temperature Temperature
Eh RedoxptEh_
Mill Groundwater Discharge Permit
Groundwater Mothtorisg
Quality Assurance Plan QAP
Turbidity
Date 1.17-06 Revision
lflirhiditv
Page 41 of 41
Volume of Water Purged
oinS Rate Calculation
PlowRnteQ iagpra
s/6o ________
Time to evacuate two casing volumes 2VT2WQ/9 __
Number of casing volumes evacuated if other than two
if well evacuated to dryness number of gallons evacuate.d__-
Name of Certified Analytical Laboratory if Other ThanEsiergy Labs
ffitumila $nSle
TalkS
ehtde
jmpIe.Voilunne
SSWtÆtei
tlikiiispeded
Mitered
Eircle
Preservative Added
$Ø
VOCs
Nutrients WOth1
--ct
l4O4 fl
HØavyUetals Z5QthlT ffiO3
All Other Non-
Radiologics
250 ml NPresrvative Added
OrossAlpha 1000 H2S04
Other specify
6ioreeJ
Sampl volume
Ifapreservaliveisused
Specify Type and
Quantity of Preservative
rr /1
fl4 /C4e..-araler/352 left
JtVtAef
64 b.jc-/J
VUc 2i3s
4on æesc.r at
41eei ti
s/ear S4 -pJrc Wat
jg 7r if-
Fer ii cr 2SO
ew
/rr
ejer.b.C
Stt aD 12
................Sn..............
MIII Gaaun11w8fl Disdwige Pea-rtht
a-ouzdwaterc Mcnitoriog
Quality Assurance Plan CAP
Pniperatum_..l
RedoxPotentWEh DSt
Turbidity
Date 2.25.07 DevkS
age4Oof4I
AflACJIIffMIIENT
WT1E WUEA 1UkVNfflDM alL
IIDL1ID DATA WOS$JLIWtT WOE GIIZOU1MD WATER
Description of Sampling Event Acuurt c-k Iorivi
Sampler
Location welil name 11sf HaS ad initials 1vvr iJid7 14J44ter
DateandTimeforPurging IO.260c andSamplingifdiffezvnt i-67
Well Purging Equip U8 or_bailer ellPump if other than Rennet__________
Sampling Event cii bacs-Prev.WffSampld kSapp1iflgEV6nt
pullnfferl.O pHBOffer4.O 4-c
Specific Conductance qq uMliOSIcm VtPpl /OO
Depth to Water Refore Purging 7236 Casing Volume Si Well /8111 qg653h
Well 26Th
Comluetance avg_____________pH of $atet ave
Welt Water Temp avg_iii Rfolc PoitMl flh Turbidity
Weather Cond pief ht7 fig LI Ext lAmb Temp pzot to sampling event .S
Time lal Pumed_iL__THPQ Gal Purged
Con ance-31 Cnduclue
pH
Temperature 7N
Redox ml Eh_
TwM
Jal Purged_______Ti aged
TemperaUwe
Redox i4a1 Rh
Mill ouu4waterDistge Perrait
Crouudwater Monitoring
Quality Assurance Plan QAP
Date 1L17B6 Resioa
Turbidity
Page of 41
Volume of Water Purged When lel4P
ggRate Calculation
flow Rate QX ingpm
S160 _____
Time to evacuate two casing volumes 2W
T2V/Q
Number of casing volumes evacuated if other than two_
If well evacuated to dtyness number of gallons evacuated_________________
Name of Certified Analytical Laboratory if OtherThai Snºrgy Labs
TØkØn
ftiste
$iiSleVobnneiti
jkSitai sliecified
below
Filtered
ckclel
Preservative Added
c14
VOCe
Nutrients
tyN 3k4O1E1
1005
tS fl SN
IfSO4
HØavyMetals 2OiL 11Nb3
All Other Non-
Radi$pgics
jr NoPSthativeAdded
GrossAiplla
Other specify
eaJ iM7tnf
Ct
1000S
SamplS volume
H2SO YN
I1I
if preservative is used
Specify Type and
Quantity of Preservative
Spmp4 -c at4d r/ar kin %r se
.1/o44P On dir.cr ct ILi
.ir ti8C -6wc/
rnmment /A.fl 4ni-t
........ n......l...fl-
Mill schnePennt Date 2.25.07 evisioa
GowalwaterMonitag
Quality Aacurance Plan QAP Page 40 o141
ArrAclum4ngNn
Wflwilii IMIIilSA UJRANHIIJM huLL
WIIEIIZD DATA WOSEEflOR LWUND WAT1EE
Description ofSmnplingEvent
St Ltrct hioeoii/es_
Sampler
Locntion well name 77N -7 Name afid infitialsj7 ALr
Date andTimefornrging 3lO .260cf and SwuplingQfdifferent.3 1/-
Well Purging Equip Uset or_bailer Well Pinup if other than Bonnet /jvi1/
Sampling Event di Icnofoi_Prey Well Sampled in Sampling Event it
pflBuffer7.O______________
SpecfficConductance qqg uMMOS/cni c11Pr.2/
DepthtoWaterBefozePwging Is Casing Volume WellJ Ai .653k
Well 36Th
ConduSnceavg pH ofVtatkavgi
Well WaterTeaup avg_RedoxPotentialflh Cturbzdity
Weather Cond .c/en .Zif Ext Amb Temp prior to sampluig event Ca
inie al Purged 3C ______Gal Purged
conductance outhiutee
pg 7O
Temperature Temperature_______________
Redox Potential Bk 34 Redox PyitiiWk
Turbidity_________________Tewtiy___________________
GaLPurged______Ti GaLPurged_______
Condu ce _________________
pH pH
Temperature Tnperatur..Z
Aewawua uaas
.3.1
JwffiOrodwatwDi8cbargePermft Date 1L17.06 llteviaioa
Orouudvjater Moaitoring
Quality Msurauce Plan QAP
Volume of Water Ptuged When IWeld
Turbidity.._
Page 41 sf41
wing Rate Calculation
Flow Rate in gpin
5160 _____
Time to evacuate two cqsiag volumes 2V
T2V/Q ii
Number of casing volumes evacuated if other than two
well evacuated to dryness number of gallons evacuated___________________
Name of Certified Analytical Laboratory iiOther Than EæØrgyLabs cr
Z2S SSsS
TakeS
elSe
SSjiUeVdanune
flSlcafMliØr
Sdi.speeiflŁd
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elSe
Preservative AddS
dSi
bebkWY
VOCs
Nutrients
JtN 3x401u1
100 Si
.y act QN
.UzO4
EØavyfrietals t..N 250itHt H.1lliOj
All Other Non-
Radiologics
250ial NPiSrvtheAddŁd
GrossAipha
Other specify LI
1000ml
Sample volume
112504
If preservative is used
Specify Type and
Quantity of Pwservative
eweti
I/Jvlit Ihnii f4v-.er Cf ætttIiLJ4/ªf/flnmmtsnt coe %Av-C ot1 JOt
-/T/AJ/
Sakif/i ar/D77 .-7nr 4c-pr/627
Thte 2.25.07 lRevisiau
Page4Oof4l
ATTAC1IIIMIIJNT
Wflilltril 1t411E84 URW4IIUM IMIIILL
FifiELD 1UTA wonmrIFOIll GWUNII wAm
Description ofSamplingEvent Ln/i4/cv1
Location well name It-u NaS add initials inat /1 4g
Date and Time for Purging SS 200 and Sapling if different
Well Purging Equip Uset jSp or Jailer Well Pump if other than Bennet L.t4
Sampling Event 41 ati ftc r4Iumimnw Piv Well Sampled in ainpling Event J-3
plBufferli 76 pHBuffer4.O .L/O
Specific Conductance 98 uMROS/cm Well Depth /24.
Depth to Waterillefore Purging 17 Casing Volume Si 4t1 WellSZ 57 .65Th
Welt 367k
Condudaace avg IHdfWttŁr ayg ----.-
Well Water Temp avgT Red Potend$En turbidity
weather Cond.________________Ext Amb Temp prior to sampling event
Time IOS alPurged TiIn QalPurged
Conductance \XS ConduN
PH 7.O .__
________________Temperatum
MIII oilMw ThrcTuacg Peimit
Urouzalwater Mothothig
QuSMslwance Plan QAP
Tenipemftire ILL
Redox PotentialEh 3L
Turbidily__________
Redox
Tqrb__
Mill ciater Discharge Permit
Groundwater Monitoring
Quality Msuraace flan QAP
Date itl706 laevision
TIU4UIIItV
Page4l of 41
Volume of Water Purged
Pumning Rate Calculation
How Rate in gpm
sI69 ________
Time to evacuate two casing volumes TV
T2V/O___
Number of casing volumes evacuated if tkOr than two___________________________
If welL evacuated to dryness number of gallons evacuated__________________________
Name of Certified Analytical Laboratory if Other Thanilnergy Labs
Jypat$nmS Snmp4e
TotS
chicle
SSitle Vh
fctiiifth
thsiS speciedbi
Filtered
circle
fl-esenailive AddS
ciSc
VOCs
Nutrients
.2K
iV
3j4Qjj.
loOlni
.y ua
ifO4
yMØtals YN 250Th1H liMo3 YN
All Othei Non-
Radiologics
250ml
......
NPresenativeAdded
CirossAipha
Other specify
eniej f1
l000ml
Sample volume
HSO4
If preservative is used
Speci1 Type and
Quantity of Preservative
rrntwuLlsWOLttLc4
cnLt_r /Os j.-
-rz ii 6r cL
49 Rv4E4 o.jJj f2 æ7.Ccrcc
ai
5tIt.t Weec
/3 /pnnet iP/7 M//2e1er Cvt
/rFr Sfl ar /74
Mall Growthlwater Discharge Permit
Groundwater Monitoring
Quality .4 ace Plan QAP
Thne Gal Purged_______
Condak
Temperature
Redo otential Eli_________________
Temperature
RedoxP atiat Eli.
Date 2.25.07 evisicn
iPage40of4
ATTACIHIIt4IIN 11
WIBIIITH MESA ffAA1JllhtJM MIULL
FHELD DATA WO1KsJlllET IFOIN GLWDIkJD WAT1ER
Description olSampling Event gwnc
Sampler
Location well name 76t1 Name initials
Date and TiirueforPurgthg 12601 ad Sampling if different 3SL
Well Purging Equip Uset .Litp or jailer Well Pump if other than Beanet L-im.f jc
Sampling Event____________________Prey Welt Saiip1ld in Sampling Event 7ZJ
pliBt7.0 76 pHBuffer4l______________
Specific Conductance_f uMIIOS/em WS Depth 121.33
Depth to Water Before Purging
00 Casing Volume Well .653k
Welh 367k
conduthlnce av pif oSier avg
Well Water Temp avg.._RedwŁ Potenthtt tflh Turbidity
WeaktherCond._________________Extl Amb Temp.p br ID samplitig evcht_________
Time Ot3 lab Purged TRue Gal turged
Conductance___________________Condu
p11 7O pH
Temperature 14 .07 Temperature
Redox Potential Bk 3$1 Redox Po tint Eli NN
Turbidity 1-nIfty___________________
Th\GM.Pured
PH
N--.--
Mill Groundwater Discharge Permit
Gromdwater Monitoring
Quality Assurance Plan QAP
Date 11.17.06 Revisiot
Page 41 of 41
Turbidity
Volume of Water Purged
Turbidity
pping PS Calculation
PlowRnteQ iugpm
51610
Time to evacuate wo casing volumes ZV
TZVIQ /9bn
Number of casing volumes evacuated if other than two_________________
if well evacuated to dryness number of gallons evacuated_________________
Name of Certified Analytical Laboratory if Other Than Energy Lab
Sakuple
TaJS
ciSe
SÆSjilVolume Filtered
fSbitfiithØr circle
thiith.specifled
1iØIOY
Presenative Added
cfrctŁ
VOCs
NutrIents
flØavyMetals
All Other Non-
M0m1
lOOmI
j5Qjjf
2501
Ha i7
fl5
H14o3 sr
NPrSrvitive Added
Radiologics
GrossAlpha iflOæ aso
Other specify
tletthJ fonus
Saniplvolume
If preservative is used
Specify Type and
Quantity of Preservative
PnmmentQ f/C..-
iq/Iedyc 4efTL
--
/otnaet 1/
Rv4
ft /Aor flttSc.r /C
P1 4t7-tc
IIn-4 074 /rrr sr
Seape t4ej 8i IJZc 5IYJAL _r.FcSpI4
a.-y ca.-..4/Cc Z37 /ePr Sfl two
............ ..............................%........I
Mill CreuSw Ththae MrS
QthwaterMooi2Sg
Quality Msurance Plan QAP
MLTACJHIII4IIENT ii
Wffiwrn E4IIZSA IUIIWWJM R411LL
PIIEU2 DATA WOS1RIIEET IFOR GWOII.ThJD WAT1IIt
Description of Sampling Event sLxoi rb
Sampler
Location well name 1-CO NutS and initials Cprsr R7av /4vncr
Date and Time forPurging .20cf and Sampling if differcent S/I OT
Well Purging Equip tJsed .itp or_bailer Welt Pump if other than Rennet i./
Sanipling Event ekprowv Prey Wll Sampled in Sampling Event 7Z0 1/
pHBuffer7.O 7-p pfluffer.4
Specitic Conductance qq uMROS/cm Wd11DPth 1/3
Depth to Water Refore Pwgin .23 Casing Volume 114 Well flO 653h
Wel 367h
Conductance avg pH of water avg__
Well Water Temp avg_RSoi Poteiitth Efi_eturbzdity
Weather Cond dear eea tl Ab Tenp.priortoaniplhigevent 3C
Tin 1OCt5 lal Purged Tik Gal purged
condathnce a7q CoauIsC
cT
Tempenture SQ Temperature
RedoxPotendatEb %3
otfiih
Tutbidity Cj day__________________
Date 2.25k 1RevisS
Page4Oof4l
ci
______Gal Purged_______
Temperature
Eli
Mill Crouadwatez Discharge Pennit Date 11.17.66 JQevisionr
ouudwater IMkmitoæag
Quality Assurance Plan QAP Page4l of 41
Volume of Water Purged When Piel4Pnrametesnm
Pqftnpjng Re Calcuhitign
flow Rate in gpm
5160 _____
Time to evacuate two casing volumes 2VT2WQ
Number of casing volumes evacuated if other than two_
if well evacuated to dryness number of gallons Svacuatd_
Name of Certified Analytical Laboratory if Other than Bnergy Labs
zjSk alnllkSS
clrde
VSieSWuithi
tSSiapØeiffed
bŁlMW
fltered
cfrclel
Preservative Added
elide
VOCS
NUtrients
.jt...W
62TN.
i4O.thI..
lOOmI
WI
H2$04 dP
Uºavyutal 2soihLh.YNH BNQ YN
All OthS Næ-
Radiotogics
250nd NSpreservaflveAdded
GrossAipha
Other specify
iiflnznn.c
1000ml
Sampl volume
HSO TN
cbV
ifapresedveisilsed
Specify Type and
Quantity of Preservative
Cqnmeats
/ilJp//ic /2 æ1t
Oqc7
/nc7
/7 4in
ieceiv irfl tt.n .ce p1c
/0.//
-Sanii 4nii et.rfiSl Th//c1 ar /dOO /nr Sjr /e9d
Mill Groundwater Distharge Fed-nE Date 2.25.07 Ifinvicion
ondwater Monitoiiug
Quality Msamnce Klan QAJP Page 40 of 41
ATFACIIIIMflJNTI
WIIIIJJTIE MESA 1IJtQANffffi1 alL
IFEfl DATA WOUSEDIET 1iO1 GlltO1tJ14D WArS
Description of Sampling EventJ St
Sampler
Location well name 77j LI NSŁ Ed ithtinlsil.1-/14f/J7 RJ4inear
Date and Time for Purging 10-2 OO and Sampling if different
Well Purging Equip lLJge or_bailer Well Pump if other than Bonnet 1vu1
Sampling Event ckiod-OscflL.W-Prey Well Sampled in Sampling Event TA .32
pIBuffer7.0 pHlluffer4.0
Specific Conductance gq uMTcLOSIcm Well Depth 111
Depth to Water Before Pugging tZ Casing Volume Well 2-237 .653h
3WU7 i6lh
Condftttglnca avg_________________pH ofiWatØr nvg__
________________Welt Water Temp avg_Me4ox Potential P21 Crurbidity
Weather Cond iLna Extl Auth Temp prior to sampling event
ime O450 did Purged 30 Tpq Gal rurged
Conthictagce 1K/b CondScIftee
pH fl7
Temperature I.3J Temperature
Redox Potential Eli 31 Redox PpnÆh
Turbidity ISL Ttyby
Gal Purged
Tjre
OoSaturThsclwrgePenjiit Date 1117.06 Revision
Groundwater Mokothig
Qwillty Assurance Plan QAP Page 41 of 41
Turbidity________________________
Volume of Water Purged When Pieid.Pamsstaie-Msasused_________________
ggppina Rate CS4$on
PiowRsjeQJingpn Timetoevacustetwocasingvolumes2V
8/60 ________________T2V/Q PV1
Number of casing vohunes evacuated if other than two____________________
If well evacuated to dryness number of gallons vacusd__________________
Name of Certified Analytical Laboratory if Other Tuna Energy Labs rr
SSiude
TalinehS
1SileVajhnue
SieAttdflir
thSispSd
Filtered
cirelel
Preservative Added
elSe
VOCs lIft
Nutrients 101 tt 112504
HØnvyMetals t.N25Othl 11N03 YN
All Other Non-
Radiologics
750afl1 No.frnadAftleJ
GrossAipha
Other specify
evnd V11.tf
l000ml
Sample volume
11280
If preservative is used
Specify Tjp and
Quantity of PreseSative
Copnents ac-r 94 tifrt II /4 pc
ujlI//t7 fthiv R4r 69C c4/c4VS5
-SpnipJi 4w-c r/OY3 TS//ena%an /0 4pr szr cii77
Mill Cimeulwater Dischaige iFerwÆt
rouadwater MoniitoSg
QuthflssuranceThian QAP
Date 225.07 1tevisS
Page400f4I
Temperature 14./7
Redox Poten$Ek_JqS
Turbidity______________
Thi ______Gal Purged
Conduc e____________________pp\y
Temperaffire
Redontial Eli
T4CJBIIMIIN 11
Wififif TIE 1141PM UJJEM4RIEJM aL
IFIIIEILIID IIDATA WOIEJSIHIIEiET FOIlS GHWUND WATIEI
Description ofSauplingEveimt
Samper
Location well name 7Ai NUS ad initials Itnc 4pg jt
Date and Time for Purging 33 Zoct7jind Sampling if different 07
Well Purging Equip LJseth or_bailer Well Pump if other than Bennet L-nw 7f_
Sampling Event4Laa rAaicsw-.JPrev.WeJl Sampled in ampling Event.______
pHlluffer7.0 7O pflBuffer4.O_______________
Specific Conductance uMEiOSIcm WU Depth /O
Depth to Water Before Purging 58 Casing Volume Well 91.97 .653k
Well .367k
Conductance avg pH ofWatr ayg
Well Watet Temp nvg_Iecfwc otentnth turbidity_____
Weather Coed LY L4 ti--Extl Amb Temp priorto sampling event_______
Tnne35 GPurgeC Tibi JalPurged
Conddciance 7fl Couductan ..
pH 7.9
Temperature___________________________
Redox PnI tint mM
Tiqe
GaLPurged
Temperature
RetloxP ntial Bk.
JlllGrouuduater Discharge Permit Date 11.17.06 itevizioa
Groundwater Ivionitoriag
Quality Msuraace Plati QAP
Pntidihi
Volume of Water Purged %SPi
gpjnaRnte Calculation
Tnrhiditcr
Page 41 of 41
FlowPSQ ingpm
SI6O _____
Time to evacuate two casing volumes ZYT2WQ
Number of casing volumes evacuated if other than two
If well evacuated to dryness number of gallons evacuated__-
Name of Certified Analytical Laboratory if Other Than Energy Labs
ta in
Taken
IdMe
SÆmeVime
hullcitŁ lfthiE
.tS.SsOecifted
iei4c.
Filtered
fittle
Preservative Adaled
tdrele
VOCs
Nutrients
HN 3A4JiI
100
Y4
cM
act
H2$04
HŁavyMetals
Mi Other Non-
Radiologics
Hit 250Th1.H
250m1
..
it
RHO3 Y.N
NapteervtiveAdded
IrossAipha LOGOS it H2804
Other specify
eaa fiVoctvtt
SaniplŁ volume
if apreservative is used
Specify Type and
Quantity ofPeservative
rr__a 1279
nAeJC
-y wi
/r sri
a.vtet
/2V1
tt
/Zrz
4rt cs4r iat____
4cr /8 LII ipn-/-Mf /2eica-.czc S04
c.JAthC njo /n/i.n-sA 1417 IMr cjtE
Mill 002 waterDicllagePe2unit Date 2.25.07 Revision
CroiSwterMen crag
QuthtyAssurancePlanQAP irage4O of4l
AT11ACIIt4IIENT
WrdIR1I 14fflSA IIJJAN1IUM aL
IFfflILD DATA WOJJSJRIIEfl FOM GHtOIUND WAflJ
Description ofSarupling Event jLin2r
Samplcr
Location well nameTttg-i.c Nate nail firntalu7.14-
DateanilTinieforPurging Jcd2 lSampllngif different 9-07
Well Purging Equip Uae or_bailer Well Pump if other than Bennet i-4
Sampling Event cA/iacsw Pretr Welt Sampled in Sampling Event 7ZuY -Z3
pHBuffer7.0 pfiBuffer4.0.
Specific Conductance flg uMHOSIcm Well Depth
Depth to Water Before Purging 9T Si Casing Volume Welt ..t .653k
________Welt .367k
Conduttilace avg_____________bIater ayg
Well Water Temp avg___________Redol otethil Bk Turbzdity
Weather Cond 7tr L5 t..a ExCt Audi temp priorto sampling event /2
Tune 1i LI cia Purged ______Gal urged
Condaciance IS Condue
pH_____________
TemperatUre 9s3 Temperature
RedoxPotentiafBh IS RedoxPyitalBh
Turbidity 3fl TnrbiiILy
Tine Gal Purged 77 Gal.Purged
Conduh __________________CondIhn ____________________pHNV ____
Temperature_______________temLwre
iatEh NN Redox4dEh .N
Mill Groundwsr Discharge Permit
irouadwater Monitoring
Quality Msvrance Plan OAF
Date H.17.06 iltevMiojz
Turbidity___
Page 41 of 41
Volume of Water Purged
gpuRate Calculation
FlowRnteQhigjifl
5160 ________
Time to evacuate two casing volumes 2WT2WQ
Number of casing volumes evacuated if other than two
If well evacuated to dryness number of gallons evaduat____________________________
Name of Certified Analytical Laboratory if Other ThanEnergy Labs
IsiiizS Qpj
TliÆin
cfrclel
SSbleVohune
SkttŁthØr
tbSaiseeWed
lliltered
drclaI
Preservative Added
LdicM
VOCs
Nutrients
34Qfl
loDint
.Yc$lICE tN
H$O4
HØavyMetals Y..25ESj
All Other Non
Rndioj4gics
YN 2SOiiil NopresŁrvÆtiveAddŁd
UrossAipha IOtflml llSO4
Other specify
e%IAJ fNPn cs
Sample volume
Ifapreservativeisused
Specify Type and
Quantity of Preserirative
flnmmntoILiL /e4c a-
cnijjjr 22O /ti-r
/Oc
r1c
Ja.vtAef
/22a
/1
lZra
æes..r i.c
49Cn
4r.eci c1
-r-fVete
/pn4tte
.cr /C
4w
/rfr
fi /2eJe.-r Ct
Sifl a7 MJ
Mill GroilwflwaterDisthavga 1Pirnit Date 2.25.437 lFtevkdou
Grouadwatf MeuitoSg
Quality Mscirauoai9an QAP Page 40 of 411
MTAC1H1WIINT1
WJIIDITIE MIESA WEANHUM M11LL
liWILJ DATA WO1IVSIHIEfl FOR GROUND WATER
Desciiptioa of Sampling Event j3g0 tmk
Sampler
Location well name 7IJY WaS and initials /1 /44 4her
Date and Time for Purging 2..j ZOI7 and Sampling if different________________
Welt Purging Equip Us1 nip or_bailer Well Pump if other than Bennet s-4 Lr
Sampling Event ci $fl.nr Prey Wel Sanipled in Sarnpling Event fl4
pH Buffer 7.0 -O pRBiffer4.0
Specific Conductance I1 tilJIHOSIcm Well Depth
9/vA
Depth to Water Before Purging Casing Volume Well .653k
Wail .367k
Conductance avg__________________p0 o4ieravg
Well Water Temp avg_________Redoa PotSthil Ek Turbidity
WedtherCondfl/env1
Snw.j
IA4I.rnExnAmb Temp ppiortaaamplmgevent
Thnt ..vi..rged YqitEurged
Condudaace .ST Centaflce
pH______________piL.NY _______
Temperature /3 Temperatuie______________
Redoz PotentialEh zoC Redox P9jetIºIt Bh_
Turbidity ____________________
Ti
Couduhc
Gal Purged_______
7__
pH /7
Temperature_
Redox
P2Jplh
Mill omtdwater Discharge Permit
Groundwater Monitoring
QaS mace Plan QAP
Date 11.17.06 Revision
Turbidity
Page 41 of 41
Volume ofWaterPuxged When Field Parameters are Measure4
pjgjtate Calculation
Plow Rate in wa
s60 _____
Time to evacuate two casing volumes 2V
T2V/Q
Numberof casing volumes evacuated if other than two_
If well evacuated to dryness number of gallons evacUatQt
Name of Certified Analytical Laboratory if Other Than BægyLabs____
tSsLiSS Sninds
Taken
dSeI
SisUle Vdnme
4athitoUieEt-
1ththi.aiapeeifiedbe
Filtered
cjrcM
Preservative Added
elide
VOCs 4thelT Yt3 IICL fl
Nutrients 100 ant
HeavyMetals
All Other Non-
Radlologics
250M..
2SOnd
1m03.
NhSrativeAddŁd
GmssAbÆ 1000ml 112S0
Otherspecil
Lw_k4
Saniplivolume
If preservative is used
Specify Type and
Quantity of Preservative
Comments OS7-t1z ft
S.n 14 a-c em k//
tflt_jY flt4M
Date 2.25.07 RevisS
Page 40 of 411
ATTACJW1IIT
WIHEJITIE 1MIIESA U1AFJ1HIIW I4ffiLL
PIIIEW DATA WOUSEIIIIIT \9J GHRO1IJND WATIE
Description ofSanpling Event 5t 4kzn c4%rnn
Spmpler
Location well name 7hi LI WaS nEd initials iWr //
Date and Time kr Purging ..3 1iZOd and Sampling if differan3
Well Purging Equip Useth .x$p or bailer Well Pump if other than Beunet Lzuftnr PŁc
Sampling Event_____________________Prey Well Sampled in Sampling Event T4v 2.
pllBufferl.O pIBuffer4.0
Specific Conductance 53 uMHOS/pm Depth
Depth to Water l3efore Purging 4cC 62
Casing Volume Well 4f 17 .53h
____________
Mid .367k
Conduetance avg of Water avg
Well Water Temp avg___________Rsdo Potential Eh cffrurbithty
WetherCond ti$ztO r7..Lc Extl AmiTemp.priqr.tq snpiug event 13
Tune 2S dal Purged flue Gal Vurged___
Condudauce \7 conduct nŁs.
Temperature
____________Redx PotethIl Ph__________________Tu
pH 7o
Temperature
Redox Poten
Turbidity
tialQ3h as
L21 -7
Tii
Couduut
at Purged GaI.Purged
Condnce__________________
Mill GroQrndwt Dfiscaige PSt
Gioandwa Moaitothig
Quality Assurance Flaii QAP7
Ct
p1
Temnentuia-r
Redo otential Ph_____________Redox ntial Ph.
Mill Cirouetwater Discharge Permit Date 11.17.06 laevisiojr
ouudwater Moaitoring
Quality Assurance Plan QA1P Page 41 of4I
LQUltflt.J Turbidity___________________________
Volume of Water Purged
jpjng Rate Calculation
Flow Rate in gpm Time to evacuate two caning volumes 21
5/60 _____________ T2VIQ
Number of casing volumes evacuated if othr than two_____________________
If well evacuated to dryness number of gallons evacuEted__
Name of Certified Analytical Laboratory if Other Than Energy Labs
Jfilgpj $uthS
Taken
dSe-
SinniileVdonne
iSfØak ifotbØr
ui..cfled
kered
cle
Pregervulive Added
riSe
VOCs
Nutrients 100 in
somI.
y--
ct
lick
%$04
HØavyMetas Y.fl ENO3.YN
All OtheE Non-
Radiologics
250th NiPrSæervativeAdded
CirossAipha
Other specify
t-wieoei 5/1J%v1RS
1000Sf
Sampl volume jt
112504
cli
11 preservative is used
Specify Type
Quantity of Preservative
mments46-4rpt
ra7 4yc.-crI3s4-rr
/2
/5Vt cV4A21fl
S7i-/507
J2
M/eYc
/s
n.r S7 /rFr
A--
ShLE .C /29
MW Groundwater Discharge Permit
Groundwater Monitoring
Quality Assurance Plan QAP
Tuxbidity_
Time O4 Gal Purged 2LU75
Conductance 3fl
pH_
Temperature
97
RedoxPotentialBh 173
_Ja__
Date 2.25.07 Revision
Page4Oof4l
WWIITh MISA flt4iNflJM MILL
IFIIIIELD DATA WORKSHIEfl FOR GROUND WATIER
Description of Sampling Event QueLr s1a-L4rr-
Sampler
Location well name T04 tl Name and initialsit 13
Date and Time for Purging 3-M-aocr9i and Sampling if different ii
Well Purging Equip Usetk ..ptap or_bailer Well Pump if other than Rennet QEr
Sampling Event CiorL cklorArr Prev Welt mpled in Sampling Event A/A
pllBufferl.O pllBuffer4.O .g1j
Specific Conductance J17 uMROSIcm Well Depth 130
Depth to Water Before Puging..76 MS Casing Volume 14 Well 34 .4 .653h
3K Well 36Th
Conductance avg of Water avg 44
Well Water Temp avg Redox PoteaOtal hi Turbidity 15
Weather Cond br CleJc Bxtl Amb Temp.prior sampling event
Time ooo.l.ged gl Tiine OecS CaLPurged ICS
Conductance 44 Conductance 3Cj79
C39
Temperature i49 Temperature j3jt
Redox Potential Eh 1k
Turbidity__________________________
Time Oq3
Conductance
Gal.Purged
4051
34
P1
Temperature
Redox Potential
L.4
V3 .81
Eli j
Mffl-GroundwnterDischarge Permit Date 11.17.06 Revision
Groundwater Monitoring
Quality AssurancePlan QAP Page4I of 41
Turbidity Turbidity__________________
Volume of Water Purged
pumping Rate Calculation
Flow Rate in gpni Time to evacuate two casing volumes 2V
S160 33 T2V/Q 2J0
Number of casing volumes evacuated if other than two .t
If well evacuated to dryness number of gallons evacnate.d Al/A-
Name 0f Certified Analytical Laboratory if Other Than Energy LabÆ /14
ype of Sample SaEnle
Taken
ciS4
Saumie Volmne
hidiciite if other
ththtS specifIed
below
Filtered
circle
Preservative Added
circle
VOCs jY Sx4Oinl HCL
Nutrients
HØavyMetals
All Other Non-
Radiologics
YO
Sf
loom
250kiil...
250S
Sf
I1O4
jfl
NoPresØrvativeAdded
GrossAlpha
Other specify
rener inQekJeS
1P 1000mI
Sample volume
Sf 19 H2SO4
If preservative is used
Specify Type and
Quantity of Preservative
Comments or s4c 0731 te.nn- f-LIUs PrcsJ Ic.r Pcrcc Ctn4
Sc..rnpln\cJen
4W ue
2-o954
1to
Rra1
tvi ee1
ct0J
bccytr 6t
otL16
34sj
os
%pk
Clccr
dpAr8cg
dk c%t7
4R tao
LA1
vctcr 14L fr tL1
tfintcjinr Pctt_
h...I .......%v.......n.....................
MIM Gmuidwater Discha Pmit Date 2.25.07 ReSiea
Grouedwater Monitoring
Quality MsuraacelPian QAP Page 40 of 41
kTrACiRilMNT 11
BfflTE 4IISA AP4KffJM EIULLL
WKllLD DATA WOJS1EET FOR GROUND WATER
Description ofSamplingEvet cntir .ch%t
mnpIer
Location well name 77 /7 NaS and initialsjndff
Date and Time for Purging and Sampling if different SiV
Well Puiing Equip TJseth jPiporjaiiler Welt Pump if other than Beunet L-7f
Sampling Event rh/aecv Prey Well Sampled in Sampling Event 1i
pHfiuffer7.O 76 pHi3uffer4.0________________
Specific Conductance C/yg uMROS/cm WIL Depth
Depth to Water Before Purging Casing Volume CV Well 52 .653k
Well 367k
conductunce avg___________________ff of wdtet avg _._....
Well Water Temp avg___________Redd PoteitiaI Eli Turbidity
Weather d.p ev.2 q/AZjtt Extl Auth PptoS$pling event /2
tune -b2 Gal Purged 72 Thne Gal Purged
Coadªciance 13 CoflductanN .-
pH
Temperature -l Temperature
Redox Potential Bk Redox Pyi1il Eli
Turbidity__________________ririsity
______Gal Purged _______GaL PurgedInCondine_____
Temperature
Redo otential Eli_____
mperature________
Redo pttialtEhi
MW Cronadwates Discharge Permit Date 1117.06 Wtevithon
Groundwater Moaitoriug
Quality Assurance Plan QAJP
V.W1tfl9
Volume of Water Purged VIeaeJ$
ffluMigg Rate Calculation
Page4l of4I
Plow Rate in gpm
5/60 ________
Time to evacuate two casing volumes TVT2WQ/2
Number of casing volumes evacuated if other than two
If well evacuated to dryness number of gallons evacuite.d__-
Name of Certified Analytical Laboratory if Other Than Energy Labs
gfgle Stpfl
Taken$el
Sthjile Volume
iSkiiØifDth
soecisbaar
fltered
Ldrck
Preservative Added
drd
VOCs
Nutrients
.jN
100 an
liCE
H2O4 TY
HiavyMetals
All Other Non-
250thF
2SOl
liMo3
NoPreservative Added
Itadiologics
GrossAipha I000mI 1LSO4
Other specify
leNlO.lJ i1/PtC.a4t r.S
Sample volume c13
Ifapnativeinu
Specify Type and
Quantity of Peservative
fl.nntowuwwoLe_RujecLL
crnfLJtr I33O /-er
/3/2 iLAc /1
i3 Jc/J Cr2
rlc 12
/j.
s1
c.t---4
/2/i /anncr lb
.r12/V /rF-r
icc
sit ar /21/
nnlwaariNstharge Parent Bate 2.25.07 ttevisiaa
CoMwaterMaitoæag
Quality Msurance Plan QAP Page 40 of 41
AflACWMIIRNT ii
WJHIIIU1 MESA URANIIIEIM MRLL
FJIIEL1Th IilATA WORKS1E1fl FOR GIIODNIID WATEM
Description of Sampling Event
Sampler
Location well name 77v IauØand uutials4ar 4k-
Date and Time for Purging ZOO7find Sampling if diffeaent_______________
Well Purging Equip Uiset X$thp or_bailer Well Pump if other than Beamet JSI-4/
Sampling Event_________________Prei Welt Sampled in Sampling Event fl4
p11 Buffer 7.0 -o pH suffer 4.0
Specific Conductance uMLIOSIcm reWPepth
Deitb ito Water Before Purging Casing Volume Well .653h
Well-.36711
Conduethice nvg_________________pif OfWiter avg__________________
Well Water Temp avg________Reix.PoteiW Eh Turbidity
Weather COflCkw Sut oi-e-EJCti Amb Temp.priprtq hag event
Time aal Purged Tn Gal Purged
conthlcwce____________Conctnce_____________
pH___________ _____________
Temperature
43 Temperature
RedoxPottnthtlWh___________RedoxPo _____________
Turbidity Tuty
Titue Gal..Purged__
Condaftet_____________NV
Temperature
Redox Poteyi1h
jvjffl-roundwaterDiscSgePemeit Date 1t.1706 Revisioar
3ouudvwjtcrMonitodug
Quality Msarance Plan QAP Page 41 of 41
Turbidity Turbidity__________________
Volume of Water Purged When Field Parameters am Measured___________________
pg Rate Calcuktion
Flow Rate in gpm Time to evacuate two casing volumes 2V
s/60 _______________T2V/Q
Number of casing volumes evacuated if other than two_________
If well evacuated to dryness number of gallons evacuated___________
Name of Certified Analytical Laboratory if Other Tb Energy Labs__
q$asumk Sample
Taken
elSe
SIihde Volume
SkatMttli
tthisuecifled
Filtered
fcM
Presenatlve Added
efr4E
VOCs
Nutrients
HØavyMetala
All Other Non-
tt N.y 340S
100 mlz5oiS
250ml
NH Th$04
liMp3 YN
NoPSvativeAdded
Radiologics
GrossAlpha 100Gm
Sample volume
ISO YN
Ifapreservative is used
Specify Type and
Quantity of Preservative
Other specify
5/eimaP 41nJtpAlt4
Focr xrifiM t0 ti74777 //q4 -C
/r ct
Of-27
MIII CterDShargePemiit Date 2.25.97 fleuisioa
C-row water WiioSoriag
Quality Msuraoce Plan QAF Page 40 of 411
MTACIffl14BENfl
WliwnriE PAIIEA UIRAIkJRUM IMIIULL
FRIi2LITh DATA WORWSffillEET 1OR GROUND WATER
Description of Sampling Eveat Onamnk i4/n1eat
Sampler
Location well name 7u -I Name and initialTr /1 iL fZhec
Date and Time for Purging OO7find Sampling if different______________
Well Purging Equip Vised 4itunp or_bailer Well Pump if other than Bennet t4 L..
Sampling Event ah Prey Weil.Sampled in Sampling Event p4
pffBufferl.O
-o pllRufferto Li
Specific Conductance uMifOS/cm Wl Depth
Depth to Water Before Purging Casing Volume Well .653h
31t Well J67h
Condttthnce avg pH od VMr avg
Well Water Temp avg_________RSoPoºeitia1 Eh Turbidity
Weather Cant C3/ew1 1tatt ExtlAinb Temp.priortsaiupling event
Tune Gal Purged TmP Gal Purged
Conductance 33 Concihtance
pH______________w.\
Temperature 1/0/Temperature_________________
Redox PatentS Eli 2/Redox PoJeiiuil Eh\
Turbidity TurJ$__________________
Tipi
Gal Purged_______Tine GaLPurged
Conduciia _v______Condufiet_______________________
Temperature Temperature
Potenti$Redox Poteyhi
z.4
pCrcuaderDisdiargePerS Date 1U7.O6 ieviaien
Omuadwater WAonitothlg
QliyAssuraaceP1aaQAP JPage4I of 41
V.LUflLfl5y____________________________________IL W4LSy
Volume of Water Purged When Pekl Parameters are Measured____________________
fjuD.pjIg Rate Calculation
flow Rate Qj in gpm Time to evacuate two casing volumes TV
5160 _______________TZV/Q
Number of casing volumes evacuated if other than two___________
If well evacuated to dryness number of gallons evacuhtd
Name of Certified Analytical Laboratory if Other Than Elergy Labs
Sabn
Taken
dzsele
SØsuile Volume
thifÆfbi
tSiÆSanec1fled
bØlŁ
Filtered
circle
Preservative Added
circle
VOCs SN 3i4Oh1ul RL
Nufrients 100.int R$O4
HØavyMetaJs .N .250thlH P140.
All Other Non-
Radiologics
250mnl NPEosŁrvitiv Added
GrossAipha
Other specify
1000mL
Sample volume
IASQk
Ifapreservative is used
Specify Type and
Quantity Of Preservative
Comments OCf92-i1-/1 ____PVLCSgPLI2LLfle ar /ftcCfr/ctirH 3tsT
Mll-DisePunii Dt2.25.07 Eevithca2
owaterMonRoring
Quality Msarance Plan QAP Page 40 of 41
AflAC1HffiEIklT
WE11T1 MIESA 1LBJk1IIJM IWifl
1BHI1LD DATA WMSIliIIEIffT JFI2R GIIIOUI\R11 WARIED
1oeacnptaonofSamplingEvent
sr
Sampler.
Locationwelihiame 72i HaS afid initials C-41/J7
DateandTimeforPurging 10 2OO7 and Sampling if different
Well Purging Equip Used 4uniip or ..jailer tell Pimip if other than Bennet jj.i/i5ii
Sampling Event Ui Prey Well.Sampied in Sampling Event I1Q -h
pHlluffer7.0 pH$uffer4.O
Specific Conductance uMHOS/cm Well Depth /2
Depth to Water Before Purging Casing Volume Well .653h
.3 Wet.367h
Conductance avg_________________pH of Water avg__________________
Well Water Temp avg_________Iedthc Potenft1 Ek Ttnbxdity
Weather Cond rfat d/c Extl Amb Temp prior to sampling event
Time YO1 al Purged Lr Tune ______Gal Purged
Conductance 35 _____
pH 7k
Tempenture 147
Redor PotentialEh 331
Turbidity
Time Gal Purged_______Ti Gal Purged
Coce ________pH
Temperature
otential E0
ci
Grmwdwater Dlscbarge Permit Date 11.27.06 Revlsiot
-oundvaterMonitotg
Quality Assurance Plan QAP
Tuthiditjc
Page 41 of 41
Volume of Water Purged When lel4
iing Rate Calculation
Flow Rate in gpm
5160 _____
Time to evacuate two ping volumes 2V
T2VIQtt 19 tnnpo
Number of casing volUmes evacuated if other than two_
if welt evacuated to dryness number of gallons vacuatd________________
Name of Certified Analytical Laboratory if Other Than Eiiergy Labs rr
th
TÆkin
efreMi
j$Re Volume
icteft
ihSili.neclfled
Silly
Filtered
dSeI
PreservatIve tIded.fr
VOCs
Nutrients
11W
lOOmI
yS HCL
ifO
HØayyMetalR .N 5Qnf .1 HHO3
All Other Non-
Radiologics
250l N6rresŁrvativeAddŁd
Orosspha
Other specify
evtir4 nfOYn
1j100m1
Sample volume
RZSOAL YN
LbJ
If preservative is used
Specify Type and
Quantity of Preservative
gjnmeats
/L-A MI 7rt j14
-z -c4t iv 1O acr.r cc erncIrI964iZ
..
z9itf 4n-c dVfl 7/OVa /tstr szer tc
....J..._..._.......I......_______.%........................._...I....-..
Mill Grotwiwater Discharge 2emai
Groandu1ei Moniiicciiag
Quallity anosPlan QAP
______Gal Purge
CoŁtance____
PUN
Date 2.2517 Ktevisioe
Page 40 of
Gal Purged________
Tempemtare
Redox $al Bk.NN
MTACIHILMBItNT 11
WMflSA11111WJHh1JMIbilliLL
W1IIL1D DATA WOWSIEIET Th02 GHWffJND WAThI
Descriptªon of SamplliiagBvent Jajra Ii IofrtuZutA..
Sampler
Location well name 17u 9-Name IIkd initials 7i-
/-Jeifvie7
l4in.g4te.r
Date and Time for1Pu1iug 3-2Ot_znd Sampling if different 31/zoo
Well Puiging Equip LTseth or W-ellPwup if other than Bennet
Sampling Event di Iorztmvt-Pmv Well Samp in Sampling Event Tbu Y-2
pHlluffer7.0 R-O pflBuffer4.O
Specific Conductance ft uMHOSIcvn Wd Depth L5.
Depth to Water Before Pugging Casing Volume 40 Well J24 .653h
311 Well.367k
CouduŁktnce avg pwot$Viter avg____________________
Well Water Temp avg keddi Potential Eli Ttwbidtty
Weather Cond 2IA Extl Auth Temp prior to samphug event
Time O1Th 4a1 Purged 4K Ti Gal Eurged
Conductance IWO CoæducIifre
pH 77
Temperatint Temperature
Redox PotcntialBh Redo4h
Turbidity 1.7 Ttybfdity
Temperature
tential Bk.
Mill GrotSwatei Discharge Peonit Date 11.17.86 Revision
rouiwaterMothtoriag
Quality Assurance Plan QAP Page 41 of 41
Volume of Water Purged When T1ie14.P
pingRate Calculation
77
Plow Rate 03 in gpa
5.160 _____
Time to evacuate two casing volumes 211T2WQ13
Number of casing volumes evacuated If ShE than two_
If well evacuated to dryness number of gallons evacutht
Name of Certified Analytical Laboratory if Other Than Energy Labs
pe of Sample mSfla
Talks
elSe
jSleVobme
dithtfdtbet
thSÆiSØeSfled
IBiftered
dSe
Preservative Adde4
LØISM
VOs
...L4oi
Nutrients
gavyMØtalE
ib
it
lOOm
2SOkhU...it
$O4
Alt OthS Non-
Radiologics
.q 250th NProservÆtiveAdded
rossAlpha it I000ml it LSO YN
Other specify
evinti L7c
Sasupl volume
preservative is used
Specify Type and
Quantity of Preservative
C9uments nyc %ftc err
teue/I 7ciAiL
ii /1
_7ItZ4t 11 I-1r.f /249ec1DViLc7Jtd0nci2VM
Sklit1 4n pr94f cni ..cr æ9So /ejc.r st ai S2
.......................-I
Mill GwSIwater Dkcliae Pem Date 225.07 Revision
Cwundwrater Monitoring
Quality Msrirance Plan QAP Page 40 of 411
ATTAC1Hll4llENT ii
W1IIUI IMIIESA ffJRANJII MILL
FEEUD DATA WOWSHI FOR GROU1k1Ifl WATIllR
Description of Sampling EventJ ccrf hk0
Sampler
Location well narneLfi -.23 Name aM rnvtialt144C 4i
Date and lime forPurging4 3c2dd_and Sampling if different 171
Well Purging Equip lETset 4up or_jaller Well Pump if other than Dennet
Sampling EventLaKf r6/wraw-.-Prey We.Samplcd in Sampling Event 1i 1-
pflEuffer7.O 716 pllBuffer4A________________
Specific Conductance flt uMHOS/cm W.Depth /23-3
Depth to Water IBefore Purging 4751 Casing Volume Well$L 513 .653k
Well .367k
Conductance ravg of Water avg
Well WaterTemp avg_________ReiioxPotenttatWh Turbidity_____
Weather Cond 4rnr-/iwrEict Ainli Tump prior to sampling event
Time 3Purged tlbiokJ QaLPrgCd
Conductance V7\Coflucta
pH__________pW _____
Temperature 16 Temperatiue..
Redox Potential Eli Ph Redox P9eil Ehi
Turbidity________________Turl4_________________
ll-Groundwater Discharge Permit Date ff17.06 Revisioit
Groundwater Monkoriag
Quality Msurance Plan QAP Page 41 o141
2LIfltI.J Tumidity
Volume of Water Purged
PimpinaiRate Caictilation
Plow Rate 03 in gpm Time to evacuate two casing volumes 2V
5/60 _____________T2V/Q
Number of casing volumes evacuated if other than two_____________________
If well evacuated to dryness number of gallons evacuatØ.d_________________________
Name of Certified Analytical Laboratory if Other Than Energy Labs________________
iiiak $nnk
TIIºa
deI
SIns le Valune
SlSifIther
thiSai Specified
Filtered
LØkdel
Preservative Added
clyde
VOCs
Nutrients
...N 34Qj
WOnd
HCL
.1M06
HØavylvletab .Y.N N.liMo3 TN
All Other Non-
Radiolqgics
NorServativeAdded
GrossAlpha l000ml 112504
Other specify
tieieoJ2 frnice4Lc.s
Sampl volume
Ifapmseveis
Specify Type
Quantity of Preservative
asmeats fl6-Le iec_arfniJr%/Y /e
//æ M1V7 Aef
///A
fl.c
cr
F-c L4/trc
/4S7 t7nr /t i4
4//ecrfl cr /AVY
Jew
/rfr
j-.r
sin ai/OC
ee__..____._...........UJ...............t .....P...n
Grouiuwater Disthagc Permit Date 2.25.07 ReviSa
C-roimdwaterMositorhig
Quality Assurance Plan QAP Page 4.0 of 411
ATTACJBIIMIIENfl
W1IIIIJTIE 1MIIEA JUMANIIUM JMUIITJL
1IUWD DATA rsJHflEfl 11101111 GII11OUNI WArSIZ
Description ofSampling Event gwt-z4%ctwL
niplr
Location well name y4J -2 Name alid initials inizcr sI tan /J
Date and Time for Purging o.200q and Sampling if different L/
Well Purging Equip Used x$thp or_bailer Well Pump if other than BennetIin.f
Sampling Event r%/or.w..-Prey Well Sampled in Sampling Event iZt
pflBuffer7i pllfluffer4i
Specific Conductance uMROSIcm Depth /22
Depth to Water Before Purging it Casing Volume j4ft Well 77 .653k
Well.367k
Condttctunc avg_________________of $ter ayg
Well Water Temp avg_c Redcsic Pomntxat fifi Turbidity
Weather Cowl aiavc liv Ext IAmb Temp priorto sampling event
Time U9O jul Puted_______ltlIne Gal Purged
condciance 5O6 ConduN
pH W2t2/c.ctl
Temperature 4W2b .36 Temperature
Redox PotentiaIQ3hS Redx rediaIEh
Turbidity 3.L1t Turliiiy______________________
wmGroundwater Discharge Permit
Groundwater Mordtoriag
QuSy Assurance Pian QAP
Date 11.17.06 Revision
Page 41 of 41
Volume of Water Purged SWum
Diwing Rate Calculation
Flow Rate in gpm
5/60 ________
Time to evacuate two casing volumes 2V
T2V/Q 1I
Number of casing volumes evacuated if other than two
If well evacuated to dqness number of gallons evacuate$____________________________
Name of Certified Analytical Laboratory if Other Than Energy Labs______________
9SS
Talthn
efrde
Sash$le Vehinse
ffiailfstitothir
.Sia.specifled
S6iii
Filtek
drejel
Preservative Ashled
fdrcJI
Wc
Nutrients
ijiW
32 ions
YthJ
fD HO4 fl
rlØavyMetals .Y NH 1MO3 YN
All Othir Non-
RadiolQgics
25GSl If NoPreservafive Added
GrossAipha i000ml 112504
Other specify
ti/ted fNcta-s
Sampl volume
Ifapreservativeisused
Specify Type and
Quantity of Peservative
flnantc
7..WWISAS7.J
5Cn5Jer V//rrr
s-
gtic
ctvtiief If 4.fic.lr
S-p1E er
4jeec
/.229 it
-cr /779
4-
/rF-r
2-
SPE cc /Z 36
Mill Croau4dwater DkchargePeirnit
GoiSwater Monftoziug
QSi Assurance Plan QAP
Date 2.25.07 ievision
Page 40o14k
Gal..Purged
Condhnce__________________
Tempeture
RedoxtEh
MTACffiffWYJF 11
WRIIITJE IMUESA ILJIIkNHIJM I4II1LL
MIIL DATA WOBK1SIHIIT lOR GHOUI1D WATIEM
Description of SamplingBvent Lurs ihcgsprvt
Sampler
Location well naiiue 7l Nanth ftd itht tb.s
Date and Time forPurgiag JtaOand Sampling if differentS 1-20O
Well Purging Equip Used jCmpor Well Pump if other than Bennet Lmnw
Sampling Event c4Imnra Piev Well Sampled in Sampling Event ft
pFlBufferl.0 70 pHBuffer4i
Specific Conductance flz uMHOS/cm Well.Depth
Depth to Water Before Purging Casing Volume WellL/JJVX_.653h
Well .367h
Conduttstnce avg__________________iH of Water avg
Well Wntet Temp avg___________Redwc PotetidI Turbidity
Weather Cond s-r -ii Ext Anib Temp prior to sampling event IC
-.-......-..
Tnne Gal Purged.Thut Gal Purged
Concludance 2R57 ConductanN 71.
pf 7.d pH-VV
Temperature Temperatuie__________________
L2edox Potential Eli gJ Redox Po tie Eli______________
Turbidity idity__________________
Conduh
nil
NV
Purged
Temperature
JWill-CrotSwaterDistgePeffnit Date 11.17.06 Revisioit
Groundwater Monitoring
Quniiiy Assurance Plan QAP
AIUAIJJU.y
Volume of Water Purged
Pumping Rate Calculation
Page 41 of 41
PlowRnteQingpm
8160 _____
Time to evacuate two casing volumes 2WT2WQ20
Number of casing volumes evacuated if other than two
If well evacuated to dtyness number of gallons evacuate.d
Name of Certified Analytical Laboratory if Other Than Snergy Labs
stiS $p$Ø
ken
drelel
SIS jilt.Volmne
iffŁtŁifofhØr
th1SS snedifed
Filtered
ffrle
Preservative AddedeM
VOCs
Nutrients
.NY 1140t
lOOmI
Y4I Ha tN
HO4
ffiavyMetals
All Other Non-
Radiolojcs
N.25oit
250 ml
.-.
NoPreseæative Added
GrossAlpba 1000S 112804
Other specify
tItle no iJLq4tt
Sampl volume
Ifapreservativeisused
Specify Type and
Quantity of Preservative
r...ante RCA -_d4r.4 nr ASflRUtUsfltOflLt/L//ecc....
J-rr
V1StC
Sr1r
/ro /czse.cr ic
vZg Z0 ffl.dflc
cr
c4 ...ykc f4itc
14/J5 JOtnct Ir
t/ecfl4 /2YJ/
/2eJet-irt
/t snt ar
Mill Groundwater Discharge Permit
Gronudwater Monitoring
Quality Assurance Plan QAP
Date 2.25.07 Revision
Page 40 of 41
TTAC1BUk4IEEQ 11
wrni MIESA URAIkJIIUM MILL
FIERLD DATA WORKSHEET FOR GROUND WATER
Description of Sampling Event tnro errtl
Sampler
____________________Name and initials itwca -nLcflIuLocationwellnameiLkGO
Date and Time for Purging Z.Ooc and Sampling if different_________________
Well Purging Equip Useck or_bailer Welt Pump if other than Bennet__________
Sampling Event C.h Prey Well Sampled in Sampling Event
pin Buffer 7.0 pH Buffer 4.0
Specific Conductance uM Well Depth
Depth to Water Before Purging____________Casing Volume Well
Well
Condutthnce avg pH of Water avg
Well Water Temp avg___________roS aI Turbidity
4/i\-
.653h
.367k
Weather Cowl.________________Extl Auth Temp4uior to sampling event________
Tame O1 Gal Purged_______Tt4ie Gal Purged
CondÆctapce 1.14 Conductance______________________
ff
Temperature Temperature
Redox Potential Bk 313 Redo otential Ehj_________________
Turbidity Cl ACbidity______________________
Tern$tY
Potential Eh_R1c Potential Ehj.......
Time Gal Purged_______
Conductance
Time Gal.Purged
Conductance_______________________
MIII Groundwatei Discharge Permit Date 11.17.06 Revision
Groundwater Monitog
Quality Assurance Plan QAP Page 41 of 41
Turbidity_________________ Turbidity___________________
Volume of Water Purged When Field Parameters are Measured___________________
ppina Rate Calculation
Plow Rate in gpm Time to evacuate two casing volumes 2V
5/60 ________________T2V/Q
Number of casing volumes evacuated if other than two
if well evacuated to dryness number of gallons evacuatd_________
Name of Certified Analytical Laboratory if Other Than Energy Labs_
zafSnnÆ1 $nimile
Takeaa
circle
Salajilt Volume
iaidieatØifistbr
specified
sowi
Filtered
circle
Preservalive Added
cjrclj
voCs YN 3A4Om1 HCL SON
Nutrients
HavyMetals
100 ml
250th
cli .HzO4 clv
lIMO3
All Other Non-
Rarliologics
250 ml No Preservative Added
GrossAipha Tt 100Gm H2SO4
Other specify Sampl volume
If preservative is used
Specify Type and
Quantity of Preservative
3r4 te tn
ttryccs
Comments Arrjek \-k nt o-iaG s4 or pcwctmcke.s uie.rc
tx.f D73 efl .k CnL4
Mill Groundwater Discharge Permit
Groundvvatar Mordtoring
Quality Assurance Plait QAP
Date 2.25.07 Revision
Page 40 of4l
PR
Gal Purged
Temperature
/8w 5x
MtTACIBIIMBENT
VflIHITIE MESA URAMUM DAII1LL
IFREIID DATA WO IFIIIEET FOR GROUND WATER
Description of Sampling Event
Sampler
Location well name ikA4 NtunØ arid initials j-
Date and Time for Purging 22 21.2 oo and Sampling if different_________________
Well Purging Equip Use jsp or_bailer Well Pump if other than Bennet imnr
Sampling Event c4i Prey Well Sampled in Sampling Event -flat1-
pH Buffer 7.0 pH Buffer 4.0 .q
Specific Conductance Vfl uMHOSIcm Well Depth
Depth to Water Before Purging____________Casing Volume Well .653h
Well 367k
Conductance avg pH of Water avg
Well Water Temp avg RŁdOtSthalS turbidity
Weather Court Extl Amb Temp.priot to sampling event Sc
Time dlJurged_____...GaLPurged ...2
Conductauce I3SS Conducta.
pH S17 pH 77
Temperature 151 20 Temperature
Redox Potential Eh 1/13 Redox PpiIiial Eli
Turbidi____________TtuUiIy
Temperature
Gal Purged
v-
RedoxptEh
Mill Groundwater Discharge Permit
Groundwater Monitoring
Quality Assurance Plan QAP
Date 11.17.06 Revisiorn
Turbidity
Page 41 of 41
Volume of Water Purged
ping Rate Calculation
Flow Rate in gpm
5160 ________
Time to evacuate two casing volumes 2V
2VIQ ___________________
Number of casing volumes evacuated if other than two
If well evacuated to drmess number of gallons evacuated____________________________
Name of Certified Analytical Laboratory if Other Than Energy Labs
Type of Sample Sahuple
Taken
cfrcleF
Smrnile Volume
imlicatI if Other
ThRtakspecffied
below
Filtered
circle
Preservative Added
circle
Nutrients
VN 401111
100 nit cIt
HCL tN
HSO4
RavyMetals 250S HN03
All Other Non-
Radiologics
250 ml
.c
No Ptesorvative Added
GrossAlpha L000ml H2SO4
Other specify
tleeaJ fNoeivtu.c
SaniplS volume
Ifapreservativeisused
Specify Type and
Quantity of Preservative
.Scnpf6 Arteei c1 t7L4c IAc1fl4/CC /AJele /ECr$.cr
4e
/rr
4ee-rrnt
Sfl
ATTACIFifIMIIENT Ii
WHIt TIE MESA URANIUM
IFRIELD DATA WORESHEET FOR GROU1JIth WATER
Description of Sampling Event CkLoro-cnn sr Oo.arkr
Sampler
Location well name Ttt3 4-Name and initials itncr IL IlciM
Date and Time for Purging 3-4-.cot and Sampling if different
Well Purging Equip 1Jsed .Lpump or Well Pump if other than Bennet
Sampling Event unrrIt thlurocm Prey Well Sampled in Sampling Event a/A
plBufferl.O 7.0 pHBuffer4A 14Q
Specific Conductance 141 uMROS/cm Well Depth 130
Depth to Water Before Purging Casing Volume Well .653li
Well 36Th
Condsictaince avg jH of Water av
Well Water Temp avg flkiiØPfithii fO Turbidity
Weather Coed 6rOKCA Ogc4 Extl Amb Ternp.prior to sampling event Sc
Time Purged Ties Qiil PurgeÆ
Coictazice_______________________Conductance
pif
Temperature Temperaturer
.7...
Redox Potential Eli RedyPotential Eli______________
1idity Turbidity
Time Gal Purged
Conductance .-
pH
Temperatur/
Mill Groundwater Discharge Permit
Groundwater Monitoring
Quality Assurance Plan QAP
Date 2.25.07 Revision
Page4Oof4l
Time Gal Purged
Conductance_______________________
ni-I
Temperaturt
Redox Potential Eli_____________Redox Potential Eh
17
Mill Groundwater Discharge Permit Date 1.17.06 Revisiorn
Groundwater Monitoring
Quality AssurancePlan QAP Page4l of 41
V4J.UAJt.J__________________________________________IL tASIJLLAL%
Volume of Water Purged
gmping Rate Calculation
Flow Rate in wm Time to evacuate two casing volumes 2V
sioo .33 T2V/Q 1O AA.fl
Number of casing volumes evacuated if other than two
If welL evacuated to dryness number of gallons evacutd
Name of Certified Analytical Laboratory if Other Than Energy Labs Afl
Iw of Saniæi SaSple
Taken
ciSc
SiSgile Volume
lndicateifther
tlithia specified
helæI
Filtered
circle
Preservative Added
circle
________________
VOCS
Nutrients
Ct rn
IGOmI
y...-HCL
geavyMetals
AU Other Non-
Radiologics
cr
44
zsoihi
250 ml
RIcO3
No Preservative Added
GrossAipha LOGOS H2S04 I4
Other specify .1 Sample volume j4
If preservative is used
Specitr Type and
Quantity of Preservative
rcncc\1roesc.n
Comments
fl
................................. ..
Mill GrmSwaterDischaige JPeonit The 2.25.07 ReviSe
roiSwatMOliftitOSg
Qualhy AS8QThcePIi1 QAP Page 40 of 41
MTAC1RII4IIENT 11
II1kTII 1MSA UMMllflUM MIILL
FIIIZIDD ATA WOWHHLfl JLtDJLZ GLIIOUNJTh WATIEIR
Desctipion of Sampling Eventll ST iLvxiinet iori
Sampler
Location well name ttu Cf7O Hwn Sd initials ilflhC 14
Date audTimeforPurging 310 2OO7 and Samplhigif different .r f-6
Well Puaging Equip lIJset or_bailer Well Pump if other than Beenet
Sampling Event_ti-i ciriattw.-Prev Well Sampled in Sampling Event______
pllBufferl.O 7-o pHBtiffer4.O
Specific Conductance ft uMROSIcin Well Depth__________________
Depth to Water Bet re Purging Casing Volume Well .653hYWe367h
Conductance avg__________________pEE traug__
Well Water Temp avg_________RWox htentW li turbdity
Weather Cowl._________________Ext Amb Temp prior to sampling event_________
Tune fat Purged TIUkN
Gal urged
Conduciance Condue1rUe
pH
Temperature Temperature
Redox Potential Eb Redoatiii
Turbidity Ttjbldity
f/
ffl-CouudwaterDischargePerasft Date 11.17.06 Revision
oidwaterMO1ut0il2Ig
Quality Msurance PS QAP
Volume of Water Purged When ieId4tu
jg Rate Calculation
Page 41 of 41
FlowRateQ ingpa
S60 _____
Time to evacuate two casing volumes 2V
T2WQ__________________
Number of easing volumes evacuated if Slier than two_
If well evacuated to dryness number of gallons evacuated_
Name of Certified Analytical Laboratory if Other Thali ety Labs
SSnnSe $anle
TalkS
elSe
SthhjileVohmnie
ffijjjfas
1iakiŁspieffied
Filtered
elSe
Preserynaive Added
feleebi
VOCs tlHN
6t
3k40s dt
Nutrients 100th .HO4
HØavylWetals 250thf fltO3
AU Other NØn-
Radiologics
25Ouil
..J....
NpmƺryidveAdded
firossAipha
Other specify
evi4J Ztravz-.n
..
LOGOS
Sample volume cjV
If preservative is used
Specify Type and
Quantity of Preservative
Tiarntzr--
eats t1c.ivrWtJS-A_2__.L
/.i
Lanipli p-r/6t4 flit .c%/O /r 3tit ar/6
Date i-os-aoocl
Depth to Water
mmHa 1.1LILI
Time Well Death Comments
\2 MW-A 71 71
j2j TW4-15
Flow -P
Meter oo-iw
74
1L 1W4-19
Meter
Flow MccL.r jarckcn cri3
CrG%1
cc
lx rcpkcec\
nfl-i TW420
Flow 7Ct PM
Meter 3k3c7O
C5 Flow
Meter
Water 73365
Depth to WatSr
Date NLL-__009 mmHq La4
Time Well Comments
lpLjL MW-4 79 Flow
Meter
tz7 1W4-15 gio-i Flow S.i PM
Meter OCQ3t-j
ta-TW4-19 Flow Pt-k
Meter Mupsc
TW4-20 fl Flow pJ\
Meter g$sq7O
Water 7tj57 1k
Date
Depth to Water
mmHa
Time WeD Denth Comments
.-
Water 77flS
oZC MW-4 7l.7R Flow Li 6-PM
Meter tauoo
oio 1W4-15 77.i.3 Flow 6-Pi
Meter 3ofl78k
IYOQ 1W4-19 r4 Flow rPM
Meter lKouO
TW4-20 7VZ Flow q.q 6-PM
Meter 3cjCO
Depth to Water
Date -cL-2opg mmHj cai31Cy
Time WeD
OT9L
Deoth Comments
P133/I
TW4-20 7/.OX Flow 5-2 6P4
Meter
OStU MW-4 z1 Flow
Meter oi ro
oq2k tW4-15 8qr Flow
ijej
LJL
TW4-19
tt
cc35
Meter u/2yso
/f4t Vt-I Jfla7J
l4ow
Meter igqo
Water YS7I
Depth to WatSr
DatesL2jd/Lt mmHgflL341
Time WeD Depth Comments
15O7 MW-4 -O.e Flow
Meter
j1qt TW4-15 Flow qg
Meter 211/7/26
fs
jr 1W4-19 siig Flow
Meter /9g/
/S13 TW4-20 71 Flow
Meter
Water flY
Depth to Water
Date mmH
Time Well
iq c/
/Lf-7
/S2/
/94.C
MW-4
Depth
rYyj
si/a
c9
W43
Comments
/fc2
tW4-15
Flow /M
Meter
Su4.c cp
1W4-19
Flow 4/4pM
Meter 2/7
Flow
TW420
Meter .2.
Flow 4/c7Pfl
Meter 1qg
Water k4flj
-1 ii.i-
Date .L-
Depth to Water
mmHa cI.qcx
Time Well Depth Comments
igs1 MW-4 Flow Lii GPA
Meter itSOit
iuc TW4-15 5c%A.-7 Flow 1A
C2k Meter
JJ
q30 TW4-19 Flow ti441
____________________
Meter
TW4-20 Flow Lj 6PM
Meter nic.co
Water S77o7
Date Lt3-Lloc3tl
Depth to Water
mmHa 2R 8L1
Time Well
\2.C3
tIL
to so
taoc
MW-4
Death
Th 3S
Id 71
9-7.sg
cjjL
Comments
1W4-15
Flow L\.G-PV\
Meter j57flLæ
14-19
Flow
Meter enccn
Vi FR
1W4-20
Meter
Flow 41 6PiV\
Meter sqsSo
Water
Depth to Water
Date_3-.-2.0o4 mmHgC4
Time Well
taa
IOO
12Y7
Depth
iT
cjS.j6
11 SLL
Comments
TW4-15
1W4-19
Flow Eg
Meter O\scnn
TW4-20
Flow 71 -FiJ\
Meter
Flow 4.1 -Pi\
Meter ccL3ChU
MW-4 1SS Flow 42 GPtA
Meter oR 56
Water 9EO
Date
Depth to Water
mmHa -i.CRL
Time Well
MW-4tq
flL
1017
Iav6
Depth
TLL4
noc
q3t
90
Comments
TW4-.15
Flow Lj.U 6PM
Meter 5t7tOCd
Flow
1W4-19
Meter ooslic
TW4-20
Flow 7.1 rPAA
Meter atgt4o
Flow 4.6 Pk41
Meter D77uin
r-
Water
Depth to Water
Date 3-17-XOq mmHq c.o78
Water 79S1
VJ2W7
lime WeOll Depth Comments
MW-4 71 Flow 4.4 6.Pt
Meter 01110gb
u4o TIV4-15 774 Flow sc
Meter 0044100
OLt7 TW4-19 L7 Flow
Meter a2t1U
1W4-20 Flow q.O crpJ\
no
Meter OS7aiqr
Depth to Watet
Date S232COCf mmHa GHtL
Time Well
II
I32
Death
q75
Comments
aa4 G.%S3
TW4-19
TW4-20
Ftw g.rc PM
Meter
-jo.q4 Flow .c1 rPF\
Meter OG7
531 MW-4 Flow q.q it
Meter
TW4-15 Flow .pr\
Meter ooLtsuso
Water qq%z.7
Date 3-30-
Depth to Water
mmHa s4q6
Time Wefl
TW4-19
Depth
Meter
_________Flow G.9PW\
Meter t$RsO
ioo TW4-20 Flow 31 6-fri
Meter 0G1%t
Water ojag
Comments
CR4 MW-4 75 Flow
TW4-15 62.4 Flow
5Aaactp Meter 0o52.V7Q
ChOoroform WeDs
Time
O-L/O
0633
os-I/cf
113/
0134
i9827
61Y3
96
1i/i
OS2
L92
ogct
pgsc
WeD
MW-4
TW4-1
1W4-2
1W4-3
TW4-4
TW4-5
TW4-6
TW4-7
TW4-8
1W4-9
TW4-1O
TW4-11
TW4-12
TW4-13
1W4-14
TW4-15
1W4-16
TW4-17
TW4-18
TW4-19
TW4-20
TW4-2
TW4-22
TW4-23
TW4-24
1W4-25
Depth
Vi Or
13.btf
SSJ7
72.18
jz
S3 LO
nfl24
qs3s
1/JK
4J1L
L722
47.c92
Date O/J 2dJ7 iii LImmHIa/is
Comments
/2g-qEO v.7
t22Y3c 16VSC4%
Cfl3f SI
Chloroform Wells
Date -J4-.ioo mmHg aa5S
Time Well Depth Comments
OWi MW-4 7364
_____TW4-1
DagI3 TW4-2 _________
______1W4-3
ova 1W4-4 cM
TW4-5 _________
_____TW4-6 7.S4
oqO 1W4-7 _________
____1W4-8 ________
_____TW4-9 _________
_____TW4-1O _________
_____1W4-11 tM.LiS
_____TW4-12 _________
06115 TW4-13 gg.7c
_____1W4-14 9W
______TW4-15 __________
Olbf 1W4-16 _________
______TW4-17 77414
_____TW4-18
jjoo TW4-19 KILS
ftI1 TW4-20 _________
_____TW4-21 Gaol
_____TW4-22 _________
_____TW4-23 67 G3
____1W4-24 ________
_____TW4-25 _________
Chloroform Wells
33 zoOf
Date J2OV/mmHg 6/i2YM2
Time Well Depth Comments
____MW-4 ________ ___________________
/3c4 TW4-1 ___________________________
OQ125 TW4-2 ______________________
___TW4-3 ___________________________
jj4q TW4-4 __________________________
13U TW4-5 __________________________
/301/TW4-6 _______ _________________
iqOg TW4-7 __________________________
042-1W4-8 ________ ___________________MC TW4-9 21 on _______________________
32 TW4-1O ___________________________
Jr3tj TW4-11 ________ ___________________
izrn TW4-12 ________ _____________________
26 1W4-13 _________________________________
Iozz TW4-14 _____________________________
OVO TW41 .n147 cw47i wnJ ki ir
l2.t7-TW4-16 /5.Z
rL2 TW4-17 _______
_____TW4-18 _________
qzq TW4-19 gl
on TW4-20
jji/TW4-21 t23
1323 TW4-.22 _______
16c7 TW4-23 i.si
TW4-24 ________
O8ZS TW4-25 ________
ii.2
5612
SCALE IN FEET
05556
PIEZ-I
5593
MW-SI
4-5546
5573
5540
perched monitoring well showing
elevation in loot amsi
temporary perched monitoring well
showing elevation in feet amsl
perched piezonieter showing
elevation hi feet amsi
perched monitoring well installed April 2005
showing elevation in loot amsi
temporazy perched monitoring well installed
April 2005 showing elevation in feet amsi
temporary perched monitoring well installed
May 2007 showing approximate elevation
//
NOTES Locations and elevations for TW4-23 1W4-24 and TW4-25 are approximate
HYDRO
GEO
CHEM INC
KRIGED 1st QUARTER 2009 WATER LEVELS
WHITE MESA SITE
EXPLANATION
estimated capture zone
boundary stream tubes
resulting from pumping
temporary perched monitoring weI
showing elevation in feet artist
MW32 perched monitoring well showing
5548 elevation in feet amsi
150 300
SCALE IN FEET
KRIGED 1st QUARTER 2009 WATER LEVELS
AND ESTIMATED CAPTURE ZONES
WHITE MESA SITE
detail map
0TW4-4
5550
NOTES MW-4 MW-26 TW4-19 and TW4-20 are pumping wells
Locations and elevations of TW4-23 TW4-24 and TW4-25 are approximate
HYDRO
GEO
CHEM INC
1-1171 8000/mayo9/wIOSO9cz.srf
Quarterly Depth Summary
1st Quarter 2009
WELL DATE DEPTH WELL DATE DEPTH
MW-i 2/11/2009 66.56 MW-4 3/3/2009 80.08
MW-2 2/17/2009 109.5 TW4-1 3/10/2009 61.68
MW-3 2/9/2009 83.18 TW4-2 3/10/2009 68.99
MW-3A 2/9/2009 85.21 TW4-3 3/3/2009 48.59
MW-4 2/17/2009 72.21 TW4-4 3/3/2009 63.76
MW-S 2/4/2009 106.84 TW4-S 3/3/2009 55.9
MW-i 2/16/2009 90.68 TW4-6 3/10/2009 72.36
MW-i 2/4/2009 108.72 TW4-7 3/10/2009 68.26
MW-i 2/4/2009 104.17 TW4-8 3/3/2009 68.49
MW-i 2/9/2009 106.3 TW4-9 3/3/2009 54
MW-17 2/9/2009 77.05 TW4-iO 3/10/2009 56.23
MW-i8 2/11/2009 71.64 TW4-i 3/10/2009 59.82
MW-19 2/11/2009 50.86 1W4-i2 3/3/2009 38.06
MW-20 2/2/2009 80.68 TW4-i 3/3/2009 49.51
MW-22 2/2/2009 67.62 TW4-14 3/3/2009 89.57
MW-23 2/11/2009 113.88 TW4-i5 3/3/2009 81 snag
MW-24 2/5/2009 114.9 TW4-i 3/3/2009 65.62
MW-25 2/3/2009 76.77 TW4-i 3/3/2009 76.95
MW-26 2/2/2009 76.85 TW4-i8 3/3/2009 56.81
MW-27 2/16/2009 51.73 TW4-i 3/3/2009 94.49
MW-28 2/4/2009 78.18 TW4-20 3/3/2009 76.53
MW-29 2/3/2009 103.15 1W4-2i 3/i 0/2009 61.35
MW-30 2/3/2009 79.08 TW4-22 3/i 0/2009 55.81
MW-3i 2/3/2009 70.37 TW4-23 3/3/2009 67.51
MW-32 2/2/2009 77.72 TW4-24 3/3/2009 56.46
TW4-25 3/3/2009 48.44
PIEZ-i 2/17/2009 62.94
PIEZ-2 2/i 7/2009 16.39
PIEZ-3 2/17/2009 35.2
PIEZ-4 2/17/2009 51.34
PIEZ-5 2/17/2009 45.75
SCALE IN FEET
perched monitoring well showing
elevation in feet amsl
temporary perched monitoring well
5555 showing elevation in feet amsl
perched piezometer showing
elevation in feet amsl
perched monitoring well installed April 2005
showing elevation in feet amsi
temporary perched monitoring well installed
April 2005 showing elevation in feet amsl
temporary perched monitoring well installed
May 2007 showing approximate elevation
HYDRO
GEO
CHEM INC
KRIGED 4th QUARTER 2008 WATER LEVELS
WHITE MESA SITE
H./71 8000/febo9/wIl 08.srf
Depth Below Measuring Point ft
9/25/1979
9/15/1980
2/1/1985
12/1/1985
2/20/1987
6/1/1988
9/1/1989
11/13/1990
3/17/1992
6/8/1993
8/18/1994
12/11/1995
4/7/1999
4/4/2000
6/9/2000
7/18/2000
8/31/2000
10/5/2000
11/14/2000
2/9/2001
7/10/2001
12/3/2001
5/23/2002
10/23/2002
3/26/2003
8/4/2003
1/15/2004
6/18/2004
11/16/2004
4/26/2005
09/27/05
11/17/206
3/26/2008
I-
NJ 00 -N NJ
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Depth Below Measuring Point ft
00 -J 01 03 NJ I-
11/8/1999
1/10/2000
2/1/2000
2/23/2000
3/15/2000
4/4/2000
4/28/2000
5/15/2000
6/16/2000
7/13/2000
-I8/2/2000
8/31/2000
9/20/2000 1L
12/6/2000
3/29/2001
6/21/2001 CD
9/19/2001
12/03/01 CD
03/26/02
06/05/02
09/11/02
CD
12/03/02
-I
03/26/03
06/09/03 CD
09/11/03
UI 12/03/03
03/28/04
06/18/04
09/16/04
12/22/04
03/15/OS
06/30/05
12/07/05
07/18/06
5/2/2007
3/26/2008
10/14/2008
Depth Below Measuring Point ft
Co
11/29/1999
1/17/2000
2/7/2000
3/1/2000
3/20/2000
4/13/2000
5/1/2000
5/25/2000
6/26/2000 ._
7/13/2000
8/2/2000
8/31/2000 pa
9/20/2000
12/6/2000
3/28/200
6/21/2001 CD
9/19/2001
6/21/2001
9/19/2001
12/3/2001
3/26/2002
6/5/2002
9/11/2002 CD
12/3/2002
-I3/26/2003
6/9/2003
9/11/2003 CD
12/3/2003
3/28/2004
6/18/2004
9/16/2004
12/22/2004
3/15/2005
6/30/2005
12/7/2005
7/18/2006
5/2/2007
3/26/2008
10/14/2008
Depth Below Measuring Point ft
I-s
oo ci NJ
5/25/2000
11/25/2000
5/25/2001
11/25/2001
5/25/2002
-I
11/25/2002
5/25/2003
11/25/2003 CD
5/25/2004 CD
-D
eP
11/25/2004
5/25/2005
11/25/2005
CD
5/25/2006
11/25/2006
5/25/2007
11/25/2007
5/25/2008
11/25/2008
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2/23/2004
-I
8/23/2004
2/23/2005
8/23/2005
eP
2/23/2006
CD
8/23/2006
2/23/2007
8/23/2007
Depth Below Measuring Poing ft
to to to to to to to oo 00 00
0i Ui Nj
8/23/2002
2/23/2003
8/23/2003
2/23/2008
8/23/2008
2/23/2009
Wh
i
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Me
s
a
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.
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8/23/2002
11/23/2002
2/23/2003
5/23/2003
8/23/2003
11/23/2003
2/23/2004
5/23/2004
8/23/2004
11/23/2004
2/23/2005
5/23/2005 ID
8/23/2005
CD
11/23/2005
2/23/2006
5/23/2006
8/23/2006 __
11/23/2006
CD
2/23/2007
5/23/2007
8/23/2007
11/23/2007
2/23/2008
5/23/2008
8/23/2008
11/23/2008
2/23/2009
Depth Below Measuring Point ft
00 -J 01
Depth to Water biw MP
00 00 00 00 00 -.4 -..j ..j -.1
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8/23/2002
11/23/2002
2/23/2003
5/23/2003
8/23/2003 CD
11/23/2003
2/23/2004
-I
5/23/2004
8/23/2004
11/23/2004
2/23/2005
5/23/2005
8/23/2005
11/23/2005
2/23/2006 QQ
5/23/2006
CD
8/23/2006
11/23/2006
2/23/2007
5/23/2007 ttitJ
8/23/2007
11/23/2007 CD
2/23/2008
5/23/2008
8/23/2008
11/23/2008
2/23/2009
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Depth Below Measuring Point ft
7/29/2005
9/29/2005
11/29/2005
1/29/2006
3/29/2006
5/29/2006
7/29/2006
9/29/2006
11/29/2006
1/29/2007
3/29/2007 CD
5/29/2007
7/29/2007
9/29/2007
-I
11/29/2007
CD
1/29/2008
3/29/2008
5/29/2008
7/29/2008
9/29/2008
11/29/2008
1/29/2009
Lfl 11 Lfl Lfl Cr cri TI Cr TI
00 01 TI Cr
in in TI Cr Cr
White Mesa Mill Well MW4
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water DepthWLLSDMPMonitoringblw.MP blw.LSD Of Well
5620.77 5622.33 1.56 123.6
5527.63 9/25/1979 94.70 93.14
5527.63 10/10/1979 94.70 93.14
5528.43 1/10/1980 93.90 92.34
5529.93 3/20/1980 92.40 90.84
5528.03 6/17/1980 94.30 92.74
5528.03 9/15/1980 94.30 92.74
5527.93 10/8/1980 94.40 92.84
5527.93 2/12/198 94.40 92.84
5525.93 9/1/1984 96.40 94.84
5528.33 12/1/1984 94.00 92.44
5528.13 2/1/1985 94.20 92.64
5528.33 6/1/1985 94.00 92.44
5528.93 9/1/1985 93.40 91.84
5528.93 10/1/1985 93.40 91.84
5528.93 11/1/1985 93.40 91.84
5528.83 12/1/1985 93.50 91.94
5512.33 3/1/1986 110.00 108.44
5528.91 6/19/1986 93.42 91.86
5528.83 9/1/1986 93.50 91.94
5529.16 12/1/1986 93.17 91.61
5526.66 2/20/1987 95.67 94.11
5529.16 4/28/1987 93.17 91.61
5529.08 8/14/1987 93.25 91.69
5529.00 11/20/1987 93.33 91.77
5528.75 1/26/1988 93.58 92.02
5528.91 6/1/1988 93.42 91.86
5528.25 8/23/1988 94.08 92.52
5529.00 11/2/1988 93.33 91.77
5528.33 3/9/1989 94.00 92.44
5529.10 6/21/1989 93.23 91.67
5529.06 9/1/1989 93.27 91.71
5529.21 11/15/1989 93.12 91.56
5529.22 2/16/1990 93.11 91.55
5529.43 5/8/1990 92.90 91.34
5529.40 8/7/1990 92.93 91.37
5529.53 11/13/1990 92.80 91.24
5529.86 2/27/1991 92.47 90.91
5529.91 5/21/1991 92.42 90.86
5529.77 8/27/1991 92.56 91.00
5529.79 12/3/1991 92.54 90.98
5530.13 3/17/1992 92.20 90.64
5529.85 6/11/1992 92.48 90.92
White Mesa Mill Well MW4
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water DepthWLLSDMPMonitoringblw.MP blw.LSD Of Well
5620.77 5622.33 1.56 123.6
5529.90 9/13/1992 92.43 90.87
5529.92 12/9/1992 92.41 90.85
5530.25 3/24/1993 92.08 90.52
5530.20 6/8/1993 92.13 90.57
5530.19 9/22/1993 92.14 90.58
5529.75 12/14/1993 92.58 91.02
5530.98 3/24/1994 91.35 89.79
5531.35 6/15/1994 90.98 89.42
5531.62 8/18/1994 90.71 89.15
5532.58 12/13/1994 89.75 88.19
5533.42 3/16/1995 88.91 87.35
5534.70 6/27/1995 87.63 86.07
5535.44 9/20/1995 86.89 85.33
5537.16 12/11/1995 85.17 83.61
5538.37 3/28/1996 83.96 82.40
5539.10 6/7/1996 83.23 81.67
5539.13 9/16/1996 83.20 81.64
5542.29 3/20/1997 80.04 78.48
5551.58 4/7/1999 70.75 69.19
5552.08 5/11/1999 70.25 68.69
5552.83 7/6/1999 69.50 67.94
5553.47 9/28/1999 68.86 67.30
5554.63 1/3/2000 67.70 66.14
5555.13 4/4/2000 67.20 65.64
5555.73 5/2/2000 66.60 65.04
5556.03 5/11/2000 66.30 64.74
5555.73 5/15/2000 66.60 65.04
5555.98 5/25/2000 66.35 64.79
5556.05 6/9/2000 66.28 64.72
5556.18 6/16/2000 66.15 64.59
5556.05 6/26/2000 66.28 64.72
5556.15 7/6/2000 66.18 64.62
5556.18 7/13/2000 66.15 64.59
5556.17 7/18/2000 66.16 64.60
5556.26 7/25/2000 66.07 64.51
5556.35 8/2/2000 65.98 64.42
5556.38 8/9/2000 65.95 64.39
5556.39 8/15/2000 65.94 64.38
5556.57 8/31/2000 65.76 64.20
5556.68 9/8/2000 65.65 64.09
5556.73 9/13/2000 65.60 64.04
5556.82 9/20/2000 65.51 63.95
White Mesa Mifi Well MW4
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water DepthWLLSDMPMonitoringblw.MP blw.LSD Of Well
5620.77 5622.33 1.56 123.6
5556.84 9/29/2000 65.49 63.93
5556.81 10/5/2000 65.52 63.96
5556.89 10/12/2000 65.44 63.88
5556.98 10/19/2000 65.35 63.79
5557.01 10/23/2000 65.32 63.76
5557.14 11/9/2000 65.19 63.63
5557.17 11/14/2000 65.16 63.60
5556.95 11/21/2000 65.38 63.82
5557.08 11/30/2000 65.25 63.69
5557.55 12/7/2000 64.78 63.22
5557.66 1/14/2001 64.67 63.11
5557.78 2/9/2001 64.55 62.99
5558.28 3/29/2001 64.05 62.49
5558.23 4/30/2001 64.10 62.54
5558.31 5/31/2001 64.02 62.46
5558.49 6/22/2001 63.84 62.28
5558.66 7/10/2001 63.67 62.11
5559.01 8/20/2001 63.32 61.76
5559.24 9/19/2001 63.09 61.53
5559.26 10/2/2001 63.07 61.51
5559.27 11/8/2001 63.06 61.50
5559.77 12/3/2001 62.56 61.00
5559.78 1/3/2002 62.55 60.99
5559.96 2/6/2002 62.37 60.81
5560.16 3/26/2002 62.17 60.61
5560.28 4/9/2002 62.05 60.49
5560.76 5/23/2002 61.57 60.01
5560.58 6/5/2002 61.75 60.19
5560.43 7/8/2002 61.90 60.34
5560.44 8/23/2002 61.89 60.33
5560.71 9/11/2002 61.62 60.06
5560.89 10/23/2002 61.44 59.88
5557.86 11/22/2002 64.47 62.91
5561.10 12/3/2002 61.23 59.67
5561.39 1/9/2003 60.94 59.38
5561.41 2/12/2003 60.92 59.36
5561.93 3/26/2003 60.40 58.84
5561.85 4/2/2003 60.48 58.92
5536.62 5/1/2003 85.71 84.15
5528.56 6/9/2003 93.77 92.21
5535.28 7/7/2003 87.05 85.49
5534.44 8/4/2003 87.89 86.33
White Mesa Mill Well MW4
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water Depth
WL LSD MP Monitoring blw.MP blw.LSD Of Well
5620.77 5622.33 1.56 123.6
5537.10 9/11/2003 85.23 83.67
5539.96 10/2/2003 82.37 80.81
5535.91 11/7/2003 86.42 84.86
5550.70 12/3/2003 71.63 70.07
5557.58 1/15/2004 64.75 63.19
5558.80 2/10/2004 63.53 61.97
5560.08 3/28/2004 62.25 60.69
5560.55 4/12/2004 61.78 60.22
5561.06 5/13/2004 61.27 59.71
5561.48 6/18/2004 60.85 59.29
5561.86 7/28/2004 60.47 58.91
5529.17 8/30/2004 93.16 91.60
5536.55 9/16/2004 85.78 84.22
5529.00 10/11/2004 93.33 91.77
5541.55 11/16/2004 80.78 79.22
5541.12 12/22/2004 81.21 79.65
5540.59 1/18/2005 81.74 80.18
5542.85 2/28/2005 79.48 77.92
5537.91 3/15/2005 84.42 82.86
5548.67 4/26/2005 73.66 72.10
5549.53 5/24/2005 72.80 71.24
5544.36 6/30/2005 77.97 76.41
5545.16 07/29/05 77.17 75.61
5544.67 09/12/05 77.66 76.10
5541.28 09/27/05 81.05 79.49
5536.96 12/7/2005 85.37 83.81
5546.49 3/8/2006 75.84 74.28
5546.15 6/13/2006 76.18 74.62
5545.15 7/18/2006 77.18 75.62
5545.91 11/17/206 76.42 74.86
5545.90 2/27/2007 76.43 74.87
5548.16 5/2/2007 74.17 72.61
5547.20 8/13/2007 75.13 73.57
5547.20 10/10/2007 75.13 73.57
5547.79 3/26/2008 74.54 72.98
5545.09 6/25/2008 77.24 75.68
5550.36 8/26/2008 71.97 70.41
5550.39 10/14/2008 71.94 70.38
5542.25 3/3/2009 80.08 78.52
Water Levels and Data over Time
White Mesa Mill Well TW4-1
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water DepthWLLSDMPMonitoringblw.MP blw.LSD Of Well
5620.77 5622.33 1.02 111.04
5540.98 11/8/1999 81.35 80.33
5541.13 11/9/1999 81.20 80.18
5541.23 1/2/2000 81.10 80.08
5541.23 1/10/2000 81.10 80.08
5540.98 1/17/2000 81.35 80.33
5541.03 1/24/2000 81.30 80.28
5541.03 2/1/2000 81.30 80.28
5540.93 2/7/2000 81.40 80.38
5541.23 2/14/2000 81.10 80.08
5541.23 2/23/2000 81.10 80.08
5541.33 3/1/2000 81.00 79.98
5541.43 3/8/2000 80.90 79.88
5541.73 3/15/2000 80.60 79.58
5541.43 3/20/2000 80.90 79.88
5541.43 3/29/2000 80.90 79.88
5541.18 4/4/2000 81.15 80.13
5540.93 4/13/2000 81.40 80.38
5541.23 4/21/2000 81.10 80.08
5541.43 4/28/2000 80.90 79.88
5541.33 5/1/2000 81.00 79.98
5541.63 5/11/2000 80.70 79.68
5541.33 5/15/2000 81.00 79.98
5541.63 5/25/2000 80.70 79.68
5541.63 6/9/2000 80.70 79.68
5541.65 6/16/2000 80.68 79.66
5541.63 6/26/2000 80.70 79.68
5541.85 7/6/2000 80.48 79.46
5541.79 7/13/2000 80.54 79.52
5541.91 7/18/2000 80.42 79.40
5542.17 7/27/2000 80.16 79.14
5542.31 8/2/2000 80.02 79.00
5542.43 8/9/2000 79.90 78.88
5542.41 8/15/2000 79.92 78.90
5542.08 8/31/2000 80.25 79.23
5542.93 9/1/2000 79.40 78.38
5542.87 9/8/2000 79.46 78.44
5543.09 9/13/2000 79.24 78.22
5543.25 9/20/2000 79.08 78.06
5543.44 10/5/2000 78.89 77.87
5544.08 11/9/2000 78.25 77.23
5544.49 12/6/2000 77.84 76.82
5546.14 1/14/2001 76.19 75.17
Water Levels and Data over Time
White Mesa Mill Well TW4-1
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water DepthWLLSDMPMonitoringblw.MP blw.LSD Of Well
5620.77 5622.33 1.02 111.04
5547.44 2/2/2001 74.89 73.87
5548.71 3/29/2001 73.62 72.60
5549.20 4/30/2001 73.13 72.11
5549.64 5/31/2001 72.69 71.67
5549.94 6/22/2001 72.39 71.37
5550.25 7/10/2001 72.08 71.06
5550.93 8/10/2001 71.40 70.38
5551.34 9/19/2001 70.99 69.97
5551.59 10/2/2001 70.74 69.72
5549.64 5/31/2001 72.69 71.67
5549.94 6/21/2001 72.39 71.37
5550.25 7/10/2001 72.08 71.06
5550.93 8/20/2001 71.40 70.38
5551.34 9/19/2001 70.99 69.97
5551.59 10/2/2001 70.74 69.72
5551.87 11/8/2001 70.46 69.44
5552.40 12/3/2001 69.93 68.91
5552.62 1/3/2002 69.71 68.69
5553.12 2/6/2002 69.21 68.19
5553.75 3/26/2002 68.58 67.56
5553.97 4/9/2002 68.36 67.34
5554.56 5/23/2002 67.77 66.75
5554.54 6/5/2002 67.79 66.77
5554.83 7/8/2002 67.50 66.48
555i29 S/23/2002 67 04 602
5555.54 9/11/2002 66.79 65.77
5555.94 10/23/2002 66.39 65.37
5556.02 11/22/2002 66.31 65.29
5556.23 12/3/2002 66.10 65.08
5556.49 1/9/2003 65.84 64.82
5556.67 2/12/2003 65.66 64.64
5557.15 3/26/2003 65.18 64.16
5557.23 4/2/2003 65.10 64.08
5556.07 5/1/2003 66.26 65.24
5554.28 6/9/2003 68.05 67.03
5553.84 7/7/2003 68.49 67.47
5553.39 8/4/2003 68.94 67.92
5553.06 9/11/2003 69.27 68.25
5553.33 10/2/2003 69.00 67.98
5553.25 11/7/2003 69.08 68.06
5553.82 12/3/2003 68.51 67.49
5555.61 1/15/2004 66.72 65.70
Water Levels and Data over Time
White Mesa Mill Well TW4-1
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water Depth
WL LSD NIP Monitoring blw.MP blw.LSD Of Well
5620.77 5622.33 1.02 111.04
5556.32 2/10/2004 66.01 64.99
5557.38 3/28/2004 64.95 63.93
5557.79 4/12/2004 64.54 63.52
5558.35 5/13/2004 63.98 62.96
5560.03 6/18/2004 62.30 61.28
5560.36 7/28/2004 61.97 60.95
5557.96 8/30/2004 64.37 63.35
5557.24 9/16/2004 65.09 64.07
5556.28 10/11/2004 66.05 65.03
5556.17 11/16/2004 66.16 65.14
5556.21 12/22/2004 66.12 65.10
5555.82 1/18/2005 66.51 65.49
5555.96 2/28/2005 66.37 65.35
5556.01 3/15/2005 66.32 65.30
5556.05 4/26/2005 66.28 65.26
5556.00 5/24/2005 66.33 65.31
5555.97 6/30/2005 66.36 65.34
5555.90 7/29/05 66.43 65.41
5556.22 9/12/05 66.11 65.09
5556.25 12/7/2005 66.08 65.06
5556.71 3/8/2006 65.62 64.60
5556.98 6/14/2006 65.35 64.33
5560.95 7/18/2006 61.38 60.36
5557.07 11/7/2006 65.26 64.24
5558.10 2/27/2007 6413 63.21
5557.82 5/2/2007 64.51 63.49
5557.82 8/14/2007 64.51 63.49
5557.63 10/10/2007 64.70 63.68
5559.48 3/26/2008 62.85 61.83
5560.35 6/24/2008 61.98 60.96
5560.58 8/26/2008 61.75 60.73
5560.62 10/14/2008 61.71 60.69
5560.65 3/10/2009 61.68 60.66
White Mesa Mill Well TW4-2
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water Depth
LSD MP Monitoring blw.MP blw.LSD Of Well
5623.10 5625.00 1.90 121.125
5548.85 11/8/1999 76.15 74.25
5548.85 11/9/1999 76.15 74.25
5548.60 1/2/2000 76.40 74.50
5548.80 1/10/2000 76.20 74.30
5548.60 1/17/2000 76.40 74.50
5549.00 1/24/2000 76.00 74.10
5548.90 2/1/2000 76.10 74.20
5548.90 2/7/2000 76.10 74.20
5549.30 2/14/2000 75.70 73.80
5549.40 2/23/2000 75.60 73.70
5549.50 3/1/2000 75.50 73.60
5549.60 3/8/2000 75.40 73.50
5549.50 3/15/2000 75.50 73.60
5550.20 3/20/2000 74.80 72.90
5550.00 3/29/2000 75.00 73.10
5549.70 4/4/2000 75.30 73.40
5549.80 4/13/2000 75.20 73.30
5550.00 4/21/2000 75.00 73.10
5550.10 4/28/2000 74.90 73.00
5550.10 5/1/2000 74.90 73.00
5550.40 5/11/2000 74.60 72.70
5550.10 5/15/2000 74.90 73.00
5550.40 5/25/2000 74.60 72.70
5550.40 6/9/2000 74.60 72.70
5550 50 6/16/2000 74.50 72.60
5550.35 6/26/2000 74.65 72.75
5550.45 7/6/2000 74.55 72.65
5550.45 7/13/2000 74.55 72.65
5550.46 7/18/2000 74.54 72.64
5550.61 7/27/2000 74.39 72.49
5550.66 8/2/2000 74.34 72.44
5550.68 8/9/2000 74.32 72.42
5550.70 8/15/2000 74.30 72.40
5550.82 8/31/2000 74.18 72.28
5551.15 9/8/2000 73.85 71.95
5551.25 9/13/2000 73.75 71.85
5551.32 9/20/2000 73.68 71.78
5546.11 10/5/2000 78.89 76.99
5546.75 11/9/2000 78.25 76.35
5547.16 12/6/2000 77.84 75.94
5552.46 1/26/2001 72.54 70.64
5552.48 2/2/2001 72.52 70.62
White Mesa Mill Well TW4-2
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water Depth
LSD MP Monitoring blw.MP blw.LSD Of Well
5623.10 5625.00 1.90 121.125
5551.38 3/29/2001 73.62 71.72
5551.87 4/30/2001 73.13 71.23
5552.31 5/31/2001 72.69 70.79
5552.61 6/21/2001 72.39 70.49
5552.92 7/10/2001 72.08 70.18
5553.60 8/20/200 71.40 69.50
5554.01 9/19/2001 70.99 69.09
5554.26 10/2/2001 70.74 68.84
5554.42 11/08/01 70.58 68.68
5555.07 12/03/01 69.93 68.03
5555.02 01/03/02 69.98 68.08
5555.19 02/06/02 69.81 67.91
5555.43 03/26/02 69.57 67.67
5555.67 04/09/02 69.33 67.43
5556.01 05/23/02 68.99 67.09
5556.07 06/05/02 68.93 67.03
5556.19 07/08/02 68.81 66.91
5556.32 08/23/02 68.68 66.78
5556.53 09/11/02 68.47 66.57
5557.00 10/23/02 68.00 66.10
5556.70 11/22/02 68.30 66.40
5557.29 12/03/02 67.71 65.81
5557.48 01/09/03 67.52 65.62
5557.63 02/12/03 67.37 65.47
5558.11 03/26/03 66.89 64.99
5558.15 04/02/03 66.85 64.95
5553.99 05/01/03 71.01 69.11
5549.26 06/09/03 75.74 73.84
5548.42 07/07/03 76.58 74.68
5548.03 08/04/03 76.97 75.07
5547.50 09/11/03 77.50 75.60
5547.96 10/02/03 77.04 75.14
5547.80 11/07/03 77.20 75.30
5548.57 12/03/03 76.43 74.53
5554.28 01/15/04 70.72 68.82
5555.74 02/10/04 69.26 67.36
5557.18 03/28/04 67.82 65.92
5557.77 04/12/04 67.23 65.33
5558.35 05/13/04 66.65 64.75
5558.47 06/18/04 66.53 64.63
5559.28 07/28/04 65.72 63.82
5554.54 08/30/04 70.46 68.56
White Mesa Mill Well TW4-2
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water Depth
LSD MP Monitoring blw.MP blw.LSD Of Well
5623.10 5625.00 1.90 121.125
5552.25 09/16/04 72.75 70.85
5549.93 10/11/04 75.07 73.17
5550.17 11/16/04 74.83 72.93
5550.65 12/22/04 74.35 72.45
5550.23 01/18/05 74.77 72.87
5550.37 02/28/05 74.63 72.73
5550.41 03/15/05 74.59 72.69
5550.46 04/26/05 74.54 72.64
5550.60 05/24/05 74.40 72.50
5550.49 06/30/05 74.51 72.61
5550.39 07/29/05 74.61 72.71
5550.61 09/12/05 74.39 72.49
5550.57 12/07/05 74.43 72.53
5551.58 03/08/06 73.42 71.52
5551.70 06/14/06 73.3 71.40
5550.80 07/18/06 74.20 72.30
5550.80 11/07/06 74.20 72.30
5553.17 2/27/2007 71.83 69.93
5552.34 5/2/2007 72.66 70.76
5552.30 8/14/2007 72.7 70.80
5552.48 10/10/2007 72.52 70.62
5554.86 3/26/2008 70.14 68.24
5555.51 6/24/2008 69.49 67.59
5555.57 8/26/2008 69.43 67.53
5555.71 10/14/2008 69.29 67.39
5556.01 3/10/2009 68.99 67.09
Water Levels and Data over Time
White Mesa Mill Well TW4-3
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water Depth
LSD MP Monitoring blw.MP blw.LSD Of Well
5631.21 5632.23 1.02 141
5565.78 11/29/1999 66.45 65.43
5566.93 1/2/2000 65.30 64.28
5567.03 1/10/2000 65.20 64.18
5566.83 1/17/2000 65.40 64.38
5567.13 1/24/2000 65.10 64.08
5567.33 2/1/2000 64.90 63.88
5567.13 2/7/2000 65.10 64.08
5567.43 2/14/2000 64.80 63.78
5567.63 2/23/2000 64.60 63.58
5567.73 3/1/2000 64.50 63.48
5567.83 3/8/2000 64.40 63.38
5567.70 3/15/2000 64.53 63.51
5568.03 3/20/2000 64.20 63.18
5567.93 3/29/2000 64.30 63.28
5567.63 4/4/2000 64.60 63.58
5567.83 4/13/2000 64.40 63.38
5568.03 4/21/2000 64.20 63.18
5568.23 4/28/2000 64.00 62.98
5568.13 5/1/2000 64.10 63.08
5568.53 5/11/2000 63.70 62.68
5568.23 5/15/2000 64.00 62.98
5568.53 5/25/2000 63.70 62.68
5568.61 6/9/2000 63.62 62.60
5568.69 6/16/2000 63.54 62.52
5562.45 6/26/2000 63.72 62.76
5568.61 7/6/2000 63.62 62.60
5568.61 7/6/2000 63.62 62.60
5568.49 7/13/2000 63.74 62.72
5568.55 7/18/2000 63.68 62.66
5568.65 7/27/2000 63.58 62.56
5568.73 8/2/2000 63.50 62.48
5568.77 8/9/2000 63.46 62.44
5568.76 8/16/2000 63.47 62.45
5568.95 8/31/2000 63.28 62.26
5568.49 9/8/2000 63.74 62.72
5568.67 9/13/2000 63.56 62.54
5568.96 9/20/2000 63.27 62.25
5568.93 10/5/2000 63.3 62.28
5569.34 11/9/2000 62.89 61.87
5568.79 12/6/2000 63.44 62.42
5569.11 1/3/2001 63.12 62.10
5569.75 2/9/2001 62.48 61.46
Water Levels and Data over Time
White Mesa Mill Well TW4-3
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water Depth
LSD MP Monitoring blw.MP btw.LSD Of Well
5631.21 5632.23 1.02 141
5570.34 3/28/2001 61.89 60.87
5570.61 4/30/2001 61.62 60.60
5570.70 5/31/2001 61.53 60.51
5570.88 6/21/2001 61.35 60.33
5571.02 7/10/2001 61.21 60.19
5571.70 8/20/2001 60.53 59.51
5572.12 9/19/2001 60.11 59.09
5572.08 10/2/2001 60.15 59.13
5570.70 5/31/2001 61.53 60.51
5570.88 6/21/2001 61.35 60.33
5571.02 7/10/2001 61.21 60.19
5571.70 8/20/2001 60.53 59.51
5572.12 9/19/2001 60.11 59.09
5572.08 10/2/2001 60.15 59.13
5572.78 11/8/2001 59.45 58.43
5573.27 12/3/2001 58.96 57.94
5573.47 1/3/2002 58.76 57.74
5573.93 2/6/2002 58.30 57.28
5574.75 3/26/2002 57.48 56.46
5574.26 4/9/2002 57.97 56.95
5575.39 5/23/2002 56.84 55.82
5574.84 6/5/2002 57.39 56.37
5575.33 7/8/2002 56.90 55.88
5575.79 8/23/2002 56.44 55.42
5576.08 9/11/2002 56.15 55.13
5576.30 10/23/2002 55.93 54.91
5576.35 11/22/2002 55.88 54.86
5576.54 12/3/2002 55.69 54.67
5576.96 1/9/2003 55.27 54.25
5577.11 2/12/2003 55.12 54.10
5577.61 3/26/2003 54.62 53.60
5572.80 4/2/2003 59.43 58.41
5577.89 5/1/2003 54.34 53.32
5577.91 6/9/2003 54.32 53.30
5577.53 7/7/2003 54.70 53.68
5577.50 8/4/2003 54.73 53.71
5577.71 9/11/2003 54.52 53.50
5577.31 10/2/2003 54.92 53.90
5577.33 11/7/2003 54.90 53.88
5577.34 12/3/2003 54.89 53.87
5578.24 1/15/2004 53.99 52.97
5578.38 2/10/2004 53.85 52.83
Water Levels and Data over Time
White Mesa Mill Well TW4-3
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water Depth
LSD MP Monitoring blw.MP blw.LSD Of Well
5631.21 5632.23 1.02 141
5578.69 3/28/2004 53.54 52.52
5579.15 4/12/2004 53.08 52.06
5579.47 5/13/2004 52.76 51.74
5579.53 6/18/2004 52.70 51.68
5580.17 7/28/2004 52.06 51.04
5580.20 8/30/2004 52.03 51.01
5580.26 9/16/2004 51.97 50.95
5580.12 10/11/2004 52.11 51.09
5579.93 11/16/2004 52.30 51.28
5580.07 12/22/2004 52.16 51.14
5579.80 1/18/2005 52.43 51.41
5580.35 2/28/2005 51.88 50.86
5580.57 3/15/2005 51.66 50.64
5580.86 4/26/2005 51.37 50.35
5581.20 5/24/2005 51.03 50.01
5581.51 6/30/2005 50.72 49.70
5581.55 07/29/05 50.68 49.66
5581.68 09/12/05 50.55 49.53
5581.83 12/7/2005 50.4 49.38
5564.92 3/8/2006 67.31 66.29
5582.73 6/13/2006 49.50 48.48
5582.33 7/18/2006 49.90 48.88
5582.75 11/7/2006 49.48 48.46
5583.35 2/27/2007 48.88 47.86
5559.57 5/2/2007 72.66 71.64
5583.29 8/14/2007 48.94 47.92
5583.49 10/10/2007 48.74 47.72
5584.95 3/26/2008 47.28 46.26
5584.59 6/24/2008 47.64 46.62
5584.55 8/26/2008 47.68 46.66
5584.03 10/14/2008 48.2 47.18
5583.64 3/3/2009 48.59 47.57
Water Levels and Data over Time
White Mesa Mill Well TW4-4
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water Depth
LSD MP Monitoring btw.MP blw.LSD Of Well
5612.301 5613.485 1.184 114.5
5512.145 5/25/2000 101.34 100.16
5518.985 6/9/2000 94.50 93.32
5512.145 6/16/2000 101.34 100.16
5517.465 6/26/2000 96.02 94.84
5520.145 7/6/2000 93.34 92.16
5521.435 7/13/2000 92.05 90.87
5522.005 7/18/2000 91.48 90.30
5522.945 7/27/2000 90.54 89.36
5523.485 8/2/2000 90.00 88.82
5523.845 8/9/2000 89.64 88.46
5523.885 8/15/2000 89.60 88.42
5524.555 9/1/2000 88.93 87.75
5513.235 9/8/2000 100.25 99.07
5516.665 9/13/2000 96.82 95.64
5519.085 9/20/2000 94.40 93.22
5522.165 10/5/2000 91.32 90.14
5524.665 11/9/2000 88.82 87.64
5518.545 12/6/2000 94.94 93.76
5527.695 1/3/2001 85.79 84.61
5529.085 2/9/200 84.40 83.22
5529.535 3/27/2001 83.95 82.77
5530.235 4/30/200 83.25 82.07
5530.265 5/31/2001 83.22 82.04
5534.405 6/22/2001 79.08 77.90
5531145 7/10/2001 80.34 79.16
5534.035 8/20/200 79.45 78.27
5534.465 9/19/2001 79.02 77.84
5533.285 10/2/2001 80.20 79.02
5530.265 5/31/2001 83.22 82.04
5534.405 6/21/2001 79.08 77.90
5533.145 7/10/2001 80.34 79.16
5534.035 8/20/2001 79.45 78.27
5534.465 9/19/2001 79.02 77.84
5533.285 10/2/2001 80.20 79.02
5533.865 11/8/2001 79.62 78.44
5534.275 12/3/2001 79.21 78.03
5534.7 15 1/3/2002 78.77 77.59
5535.435 2/6/2002 78.05 76.87
5536.445 3/26/2002 77.04 75.86
5536.405 4/9/2002 77.08 75.90
5537.335 5/23/2002 76.15 74.97
5537.325 6/5/2002 76.16 74.98
Water Levels and Data over Time
White Mesa Mill Well TW4-4
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water Depth
zi LSD MP Ii Monitoring blw.MP blw.LSD Of Well
5612.301 5613.485 1.184 114.5
5537.975 7/8/2002 75.51 74.33
5538.825 8/23/2002 74.66 73.48
5539.275 9/11/2002 74.21 73.03
5539.765 10/23/2002 73.72 72.54
5540.205 11/22/2002 73.28 72.10
5540.295 12/3/2002 73.19 72.01
5540.795 1/9/2003 72.69 71.51
5540.985 2/12/2003 72.50 71.32
5541.675 3/26/2003 71.81 70.63
5541.765 4/2/2003 71.72 70.54
5541.885 5/1/2003 71.60 70.42
5542.025 6/9/2003 71.46 70.28
5541.925 7/7/2003 71.56 70.38
5541.885 8/4/2003 71.60 70.42
5541.825 9/11/2003 71.66 70.48
5541.885 10/2/2003 71.60 70.42
5541.995 11/7/2003 71.49 70.31
5542.005 12/3/2003 71.48 70.30
5542.555 1/15/2004 70.93 69.75
5542.705 2/10/2004 70.78 69.60
5543.225 3/28/2004 70.26 69.08
5543.555 4/12/2004 69.93 68.75
5543.865 5/13/2004 69.62 68.44
5543.9 15 6/18/2004 69.57 68.39
5544.655 7/28/2004 68.83 67.65
5544.795 8/30/2004 68.69 67.51
5544.845 9/16/2004 68.64 67.46
5544.705 10/11/2004 68.78 67.60
5544.525 11/16/2004 68.96 67.78
5544.625 12/22/2004 68.86 67.68
5544.305 1/18/2005 69.18 68.00
5544.585 2/28/2005 68.90 67.72
5544.685 3/15/2005 68.80 67.62
5544.675 4/26/2005 68.81 67.63
5544.785 5/24/2005 68.70 67.52
5544.795 6/30/2005 68.69 67.51
5544.775 7/29/2005 68.71 67.53
5545.005 9/12/2005 68.48 67.30
5545.225 12/7/2005 68.26 67.08
5545.735 3/8/2006 67.75 66.57
5545.785 6/14/2006 67.70 66.52
5545.855 7/18/2006 67.63 66.45
Water Levels and Data over Time
White Mesa Mill Well TW4-4
5545.805 11/7/2006 67.68 66.50
5546.675 2/27/2007 66.81 65.63
5546.535 5/2/2007 66.95 65.77
5547.155 8/15/2007 66.33 65.15
5547.215 10/10/2007 66.27 65.09
5548.305 3/26/2008 65.18 64.00
5548.865 6/24/2008 64.62 63.44
5549.235 8/26/2008 64.25 63.07
5549.305 10/14/2008 64.18 63.00
5549.725 3/3/2009 63.76 62.58
Water
Elevation
Land
Surface
LSD
5612.301
Measuring
Point
Elevation
MP
5.613.485
Total or
Measured Total
Length Depth to Depth to Total
Of Riser Date Of Water Water Depth
Monitoring blw.MP blw.LSD Of Well
1.184 114.5
Water Levels and Data over Time
White Mesa Mill Well TW4-5
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water Depth
LSD MP Moaitoring blw.MP blw.LSD Of Well
5638.75 5640.70 1.95 121.75
5579.30 1/2/2000 61.40 59.45
5579.60 1/10/2000 61.10 59.15
5579.35 1/17/2000 61.35 59.40
5579.60 1/24/2000 61.10 59.15
5579.50 2/1/2000 61.20 59.25
5579.50 2/7/2000 61.20 59.25
5579.90 2/14/2000 60.80 58.85
5579.90 2/23/2000 60.80 58.85
5580.20 3/1/2000 60.50 58.55
5580.00 3/8/2000 60.70 58.75
5580.04 3/15/2000 60.66 58.71
5580.70 3/20/2000 60.00 58.05
5580.30 3/29/2000 60.40 58.45
5580.00 4/4/2000 60.70 58.75
5580.20 4/13/2000 60.50 58.55
5580.40 4/21/2000 60.30 58.35
5580.50 4/28/2000 60.20 58.25
5580.50 5/1/2000 60.20 58.25
5580.90 5/11/2000 59.80 57.85
5580.50 5/15/2000 60.20 58.25
5580.75 5/25/2000 59.95 58.00
5580.80 6/9/2000 59.90 57.95
5580.92 6/16/2000 59.78 57.83
5580.80 6/26/2000 59.90 57.95
5580.90 7/6/2000 59.80 57.85
5581.05 7/13/2000 59.65 57.70
5580.90 7/18/2000 59.80 57.85
5581.05 7/27/2000 59.65 57.70
5581.06 8/2/2000 59.64 57.69
5581.08 8/9/2000 59.62 57.67
5581.07 8/16/2000 59.63 57.68
5581.25 8/31/2000 59.45 57.50
5581.32 9/8/2000 59.38 57.43
5581.34 9/13/2000 59.36 57.41
5581.41 9/20/2000 59.29 57.34
5581.37 10/5/2000 59.33 57.38
5581.66 11/9/2000 59.04 57.09
5581.63 12/6/2000 59.07 57.12
5581.92 1/3/2001 58.78 56.83
5582.20 2/9/2001 58.50 56.55
5582.54 3/28/2001 58.16 56.21
5582.72 4/30/2001 57.98 56.03
Water Levels and Data over Time
White Mesa Mill Well TW4-5
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water Depth
LSD MP Monitoring blw.MP blw.LSD Of Well
5638.75 5640.70 1.95 121.75
5582.72 5/31/2001 57.98 56.03
5582.81 6/22/2001 57.89 55.94
5582.92 7/10/2001 57.78 55.83
5583.17 8/20/2001 57.53 55.58
5583.28 9/19/2001 57.42 55.47
5583.36 10/2/2001 57.34 55.39
5582.72 5/31/2001 57.98 56.03
5582.81 6/21/2001 57.89 55.94
5582.92 7/10/2001 57.78 55.83
5583.17 8/20/2001 57.53 55.58
5583.28 9/19/2001 57.42 55.47
5583.36 10/2/2001 57.34 55.39
5583.49 11/8/2001 57.21 55.26
5583.84 12/3/2001 56.86 54.91
5583.79 1/3/2002 56.91 54.96
5583.96 2/6/2002 56.74 54.79
5584.39 3/26/2002 56.31 54.36
5584.12 4/9/2002 56.58 54.63
5584.55 5/23/2002 56.15 54.20
5584.42 6/5/2002 56.28 54.33
5583.65 7/8/2002 57.05 55.10
5584.90 8/23/2002 55.80 53.85
5585.02 9/11/2002 55.68 53.73
5585.20 10/23/2002 55.50 53.55
5585.15 11/22/2002 55.55 53.60
5585.42 12/3/2002 55.28 53.33
5585.65 1/9/2003 55.05 53.10
5585.65 2/12/2003 55.05 53.10
5585.92 3/26/2003 54.78 52.83
5586.22 4/2/2003 54.48 52.53
5586.01 5/1/2003 54.69 52.74
5584.81 6/9/2003 55.89 53.94
5584.34 7/7/2003 56.36 54.41
5584.40 8/4/2003 56.30 54.35
5583.88 9/11/2003 56.82 54.87
5583.57 10/2/2003 57.13 55.18
5583.39 11/7/2003 57.31 55.36
5583.97 12/3/2003 56.73 54.78
5585.28 1/15/2004 55.42 53.47
5585.50 2/10/2004 55.20 53.25
5585.87 3/28/2004 54.83 52.88
5586.20 4/12/2004 54.50 52.55
Water Levels and Data over Time
White Mesa Mill Well TW4-5
Total or
Measuriag Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water Depth
LSD MP Monitoring blw.MP blw.LSD Of Well
5638.75 5640.70 1.95 121.75
5586.45 5/13/2004 54.25 52.30
5586.50 6/18/2004 54.20 52.25
5587.13 7/28/2004 53.57 51.62
5586.22 8/30/2004 54.48 52.53
5585.69 9/16/2004 55.01 53.06
5585.17 10/11/2004 55.53 53.58
5584.64 11/16/2004 56.06 54.11
5584.77 12/22/2004 55.93 53.98
5584.65 1/18/2005 56.05 54.10
5584.98 2/28/2005 55.72 53.77
5585.15 3/15/2005 55.55 53.60
5586.25 4/26/2005 54.45 52.50
5586.79 5/24/2005 53.91 51.96
5586.52 6/30/2005 54.18 52.23
5586.03 7/29/2005 54.67 52.72
5586.05 9/12/2005 54.65 52.70
5585.80 12/7/2005 54.90 52.95
5587.06 3/8/2006 53.64 51.69
5585.90 6/13/2006 54.80 52.85
5585.32 7/18/2006 55.38 53.43
5585.35 11/7/2006 55.35 53.40
5585.81 2/27/2007 54.89 52.94
5585.20 5/2/2007 55.50 53.55
5586.66 8/14/2007 54.04 52.09
5586.80 10/10/2007 53.90 51.95
5588.48 3/26/2008 52.22 50.27
5586.51 6/24/2008 54.19 52.24
5586.45 8/26/2008 54.25 52.30
5585.40 10/14/2008 55.3 53.35
5584.80 3/3/2009 55.9 53.95
Water Levels and Data over Time
White Mesa Mill Well TW4-6
Total or
Measuring Measured Total Total
Water Land Point Length Depth to Depth to Depth Of
Elevation Surface Elevation Of Riser Date Of Water Water Well
LSD MP Monitoring blw.MP blw.LSD blw.LSD
5607.33 5608.78 1.450 98.55
5522.28 5/25/2000 86.50 85.05
5521.51 6/9/2000 87.27 85.82
5522.35 6/16/2000 86.43 84.98
5522.14 6/26/2000 86.64 85.19
5522.25 7/6/2000 86.53 85.08
5522.13 7/13/2000 86.65 85.20
5522.17 7/18/2000 86.61 85.16
5522.26 7/25/2000 86.52 85.07
5522.31 8/2/2000 86.47 85.02
5522.33 8/9/2000 86.45 85.00
5522.35 8/15/2000 86.43 84.98
5522.40 8/31/2000 86.38 84.93
5522.40 9/8/2000 86.38 84.93
5522.45 9/13/2000 86.33 84.88
5522.53 9/20/2000 86.25 84.80
5522.39 10/5/2000 86.39 84.94
5522.42 11/9/2000 86.36 84.91
5522.29 12/6/2000 86.49 85.04
5522.63 1/3/2001 86.15 84.70
5522.72 2/9/2001 86.06 84.61
5522.90 3/26/2001 85.88 84.43
5522.70 4/30/2001 86.08 84.63
5522.89 5/31/2001 85.89 84.44
5522.88 6/20/2001 85.90 84.45
5522.96 7/10/2001 85.82 84.37
5523.10 8/20/2001 85.68 84.23
5523.23 9/19/2001 85.55 84.10
5523.21 10/2/2001 85.57 84.12
5522.89 5/31/2001 85.89 84.44
5522.88 6/21/2001 85.90 84.45
5522.96 7/10/2001 85.82 84.37
5523.10 8/20/2001 85.68 84.23
5523.23 9/19/2001 85.55 84.10
5523.21 10/2/2001 85.57 84.12
5523.25 11/8/2001 85.53 84.08
5523.46 12/3/2001 85.32 83.87
5523.36 1/3/2002 85.42 83.97
5523.50 2/6/2002 85.28 83.83
5523.94 3/26/2002 84.84 83.39
5523.75 4/9/2002 85.03 83.58
5524.23 5/23/2002 84.55 83.10
5523.98 6/5/2002 84.80 83.35
Water Levels and Data over Time
White Mesa Mill Well TW4-6
Total or
Measuring Measured Total Total
Water Land Point Length Depth to Depth to Depth Of
Elevation Surface Elevation Of Riser Date Of Water Water Well
LSD MP Monitoring blw.MP blw.LSD blw.LSD
5607.33 5608.78 1.450 98.55
5524.31 7/8/2002 84.47 83.02
5524.36 8/23/2002 84.42 82.97
5524.49 9/11/2002 84.29 82.84
5524.71 10/23/2002 84.07 82.62
5524.60 11/22/2002 84.18 82.73
5524.94 12/3/2002 83.84 82.39
5525.10 1/9/2003 83.68 82.23
5525.15 2/12/2003 83.63 82.18
5525.35 3/26/2003 83.43 81.98
5525.68 4/2/2003 83.10 81.65
5525.74 5/1/2003 83.04 81.59
5525.98 6/9/2003 82.80 81.35
5526.04 7/7/2003 82.74 81.29
5526.07 8/4/2003 82.71 81.26
5526.42 9/11/2003 82.36 80.91
5526.30 10/2/2003 82.48 81.03
5526.41 11/7/2003 82.37 80.92
5526.46 12/3/2003 82.32 80.87
5526.83 1/15/2004 81.95 80.50
5526.81 2/10/2004 81.97 80.52
5527.14 3/28/2004 81.64 80.19
5527.39 4/12/2004 81.39 79.94
5527.64 5/13/2004 81.14 79.69
5527.70 6/18/2004 81.08 79.63
5528.16 7/28/2004 80.62 79.17
5528.30 8/30/2004 80.48 79.03
5528.52 9/16/2004 80.26 78.81
5528.71 10/11/2004 80.07 78.62
5528.74 11/16/2004 80.04 78.59
5529.20 12/22/2004 79.58 78.13
5528.92 1/18/2005 79.86 78.41
5529.51 2/28/2005 79.27 77.82
5529.74 3/15/2005 79.04 77.59
5529.96 4/26/2005 78.82 77.37
5530.15 5/24/2005 78.63 77.18
5530.35 6/30/2005 78.43 76.98
5530.47 7/29/2005 78.31 76.86
5530.95 9/12/2005 77.83 76.38
5531.50 12/7/2005 77.28 75.83
5532.43 3/8/2006 76.35 74.90
5533.49 6/13/2006 75.29 73.84
5532.58 7/18/2006 76.20 74.75
Water Levels and Data over Time
White Mesa Mill Well TW4-6
Total or
Measuring Measured Total Total
Water Land Point Length Depth to Depth to Depth Of
Elevation Surface Elevation Of Riser Date Of Water Water Well
LSD MP Monitoring blw.MP blw.LSD blw.LSD
5607.33 5608.78 1.450 98.55
5532.88 11/7/2006 75.90 74.45
5534.09 2/27/2007 74.69 73.24
5534.04 5/2/2007 74.74 73.29
5534.43 8/14/2007 74.35 72.90
5554.54 10/10/2007 54.24 52.79
5535.40 3/26/2008 73.38 71.93
5535.55 6/24/2008 73.23 71.78
5535.90 8/26/2008 72.88 71.43
5535.87 10/14/2008 72.91 71.46
5536.42 3/10/2009 72.36 70.91
Water Levels and Data over Time
White Mesa Mill Well TW4-7
Total or
Measuring Measured Total Total
Water Land Point Length Depth to Depth to Depth Of
Elevation Surface Elevation Of Riser Date Of Water Water Well
WL LSD MP Monitoring blw.MP blw.LSD blw.LSD
5619.87 5621.07 1.20 119.8
5552.37 11/29/1999 68.70 67.50
5553.57 1/2/2000 67.50 66.30
5553.87 1/10/2000 67.20 66.00
5553.72 1/17/2000 67.35 66.15
5553.97 1/24/2000 67.10 65.90
5553.87 2/1/2000 67.20 66.00
5553.87 2/7/2000 67.20 66.00
5554.17 2/14/2000 66.90 65.70
5554.27 2/23/2000 66.80 65.60
5554.37 3/1/2000 66.70 65.50
5554.37 3/8/2000 66.70 65.50
5554.27 3/15/2000 66.80 65.60
5554.77 3/20/2000 66.30 65.10
5554.57 3/29/2000 66.50 65.30
5554.27 4/4/2000 66.80 65.60
5554.57 4/13/2000 66.50 65.30
5554.77 4/21/2000 66.30 65.10
5554.87 4/28/2000 66.20 65.00
5554.87 5/1/2000 66.20 65.00
5555.27 5/11/2000 65.80 64.60
5554.97 5/15/2000 66.10 64.90
5555.27 5/25/2000 65.80 64.60
5555.33 6/9/2000 65.74 64.54
5555.45 6/16/2000 65.62 64.42
555512 6/26/2000 65.85 64.65
5555.45 7/6/2000 65.62 64.42
5555.40 7/13/2000 65.67 64.47
5555.45 7/18/2000 65.62 64.42
5555.59 7/27/2000 65.48 64.28
5555.65 8/2/2000 65.42 64.22
5555.70 8/9/2000 65.37 64.17
5555.74 8/16/2000 65.33 64.13
5555.96 8/31/2000 65.11 63.91
5555.87 9/8/2000 65.20 64.00
5555.95 9/13/2000 65.12 63.92
5556.05 9/20/2000 65.02 63.82
5556.06 10/5/2000 65.01 63.81
5556.17 10/12/2000 64.90 63.70
5556.20 10/19/2000 64.87 63.67
5556.22 10/23/2000 64.85 63.65
5556.36 11/9/2000 64.71 63.51
5556.42 11/14/2000 64.65 63.45
Water Levels and Data over Time
White Mesa Mill Well TW4-7
Total or
Measuring Measured Total Total
Water Land Point Length Depth to Depth to Depth Of
Elevation Surface Elevation Of Riser Date Of Water Water Well
WL LSD NIP Monitoring blw.MP blw.LSD blw.LSD
5619.87 5621.07 1.20 119.8
5556.45 11/30/2000 64.62 63.42
5556.15 12/6/2000 64.92 63.72
5556.89 1/14/2001 64.18 62.98
5557.07 2/9/2001 64.00 62.80
5557.62 3/29/2001 63.45 62.25
5557.51 4/30/2001 63.56 62.36
5557.77 5/31/2001 63.30 62.10
5557.84 6/21/2001 63.23 62.03
5557.98 7/10/2001 63.09 61.89
5558.33 8/20/2001 62.74 61.54
5558.57 9/19/2001 62.50 61.30
5558.53 10/2/2001 62.54 61.34
5558.62 11/8/2001 62.45 61.25
5559.03 12/3/2001 62.04 60.84
5559.08 1/3/2002 61.99 60.79
5559.32 2/6/2002 61.75 60.55
5559.63 3/26/2002 61.44 60.24
5559.55 4/9/2002 61.52 60.32
5560.06 5/23/2002 61.01 59.81
5559.91 6/5/2002 61.16 59.96
5560.09 7/8/2002 60.98 59.78
5560.01 8/23/2002 61.06 59.86
5560.23 9/11/2002 60.84 59.64
5560.43 10/23/2002 60.64 59.44
556019 11/22/2002 60.68 59.48
5560.61 12/3/2002 60.46 59.26
5560.89 1/9/2003 60.18 58.98
5560.94 2/12/2003 60.13 58.93
5561.28 3/26/2003 59.79 58.59
5561.35 4/2/2003 59.72 58.52
5546.20 5/1/2003 74.87 73.67
5539.47 6/9/2003 81.60 80.40
5541.87 7/7/2003 79.20 78.00
5542.12 8/4/2003 78.95 77.75
5541.91 9/11/2003 79.16 77.96
5544.62 10/2/2003 76.45 75.25
5542.67 11/7/2003 78.40 77.20
5549.96 12/3/2003 71.11 69.91
5557.17 1/15/2004 63.90 62.70
5558.65 2/10/2004 62.42 61.22
5559.90 3/28/2004 61.17 59.97
5560.36 4/12/2004 60.71 59.51
Water Levels and Data over Time
White Mesa Mill Well TW4-7
Total or
Measuring Measured Total Total
Water Land Point Length Depth to Depth to Depth Of
Elevation Surface Elevation Of Riser Date Of Water Water Well
WL LSD MP Monitoring blw.MP blw.LSD blw.LSD
5619.87 5621.07 1.20 119.8
5560.87 5/13/2004 60.20 59.00
5560.95 6/18/2004 60.12 58.92
5561.64 7/28/2004 59.43 58.23
5543.00 8/30/2004 78.07 76.87
5541.91 9/16/2004 79.16 77.96
5540.08 10/11/2004 80.99 79.79
5546.92 11/16/2004 74.15 72.95
5546.97 12/22/2004 74.10 72.90
5546.51 1/18/2005 74.56 73.36
5546.66 2/28/2005 74.41 73.21
5546.81 3/15/2005 74.26 73.06
5548.19 4/26/2005 72.88 71.68
5547.11 5/24/2005 73.96 72.76
5546.98 6/30/2005 74.09 72.89
5546.92 7/29/2005 74.15 72.95
5547.26 9/12/2005 73.81 72.61
5547.26 12/7/2005 73.81 72.61
5548.86 3/8/2006 72.21 71.01
5548.62 6/13/2006 72.45 71.25
5550.04 7/18/2006 71.03 69.83
5548.32 11/7/2006 72.75 71.55
5550.44 2/27/2007 70.63 69.43
5549.69 5/2/2007 71.38 70.18
5549.97 8/14/2007 71.10 69.90
5550.30 10/10/2007 70.77 69.57
5551.92 3/26/2008 69.15 67.95
5552.94 6/24/2008 68.13 66.93
5552.34 8/26/2008 68.73 67.53
5552.61 10/14/2008 68.46 67.26
5552.81 3/10/2009 68.26 67.06
Water Levels and Data over Time
White Mesa Mill Well TW4-8
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water DepthWLLSDMPMonitoringblw.MP blw.LSD Of Well
5616.80 5618.21 1.41 126.00
5543.21 11/29/1999 75.00 73.59
5543.01 1/2/2000 75.20 73.79
5543.31 1/10/2000 74.90 73.49
5543.11 1/17/2000 75.10 73.69
5543.41 1/24/2000 74.80 73.39
5543.31 2/1/2000 74.90 73.49
5543.31 2/7/2000 74.90 73.49
5543.71 2/14/2000 74.50 73.09
5543.76 2/23/2000 74.45 73.04
5543.86 3/1/2000 74.35 72.94
5543.86 3/8/2000 74.35 72.94
5543.91 3/15/2000 74.30 72.89
5544.31 3/20/2000 73.90 72.49
5544.21 3/29/2000 74.00 72.59
5544.01 4/4/2000 74.20 72.79
5544.21 4/13/2000 74.00 72.59
5544.41 4/21/2000 73.80 72.39
5544.51 4/28/2000 73.70 72.29
5544.51 5/1/2000 73.70 72.29
5544.81 5/11/2000 73.40 71.99
5544.51 5/15/2000 73.70 72.29
5544.71 5/25/2000 73.50 72.09
5544.71 6/9/2000 73.50 72.09
5544.81 6/16/2000 73.40 71.99
5544.68 6/26/2000 73.53 72.12
5544.76 7/6/2000 73.45 72.04
5544.77 7/13/2000 73.44 72.03
5544.76 7/18/2000 73.45 72.04
5544.92 7/27/2000 73.29 71.88
5544.96 8/2/2000 73.25 71.84
5544.98 8/9/2000 73.23 71.82
5544.97 8/15/2000 73.24 71.83
5545.21 8/31/2000 73.00 71.59
5545.31 9/8/2000 72.90 71.49
5545.43 9/13/2000 72.78 71.37
5545.56 9/20/2000 72.65 71.24
5545.57 10/5/2000 72.64 71.23
5545.81 11/9/2000 72.40 70.99
5545.66 12/6/2000 72.55 71.14
5546.28 1/3/2001 71.93 70.52
5546.70 2/9/2001 71.51 70.10
5547.18 3/27/200 71.03 69.62
Water Levels and Data over Time
White Mesa Mill Well TW4-8
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water DepthWLLSDMPMonitoringblw.MP blw.LSD Of Well
5616.80 5618.21 1.41 126.00
5547.31 4/30/2001 70.90 69.49
5547.49 5/31/2001 70.72 69.31
5547.49 6/20/2001 70.72 69.31
5547.83 7/10/200 70.38 68.97
5548.13 8/20/2001 70.08 68.67
5548.30 9/19/2001 69.91 68.50
5548.45 10/2/2001 69.76 68.35
5547.49 5/31/2001 70.72 69.31
5547.54 6/21/2001 70.67 69.26
5547.83 7/10/2001 70.38 68.97
5548.13 8/20/2001 70.08 68.67
5548.30 9/19/2001 69.91 68.50
5548.45 10/2/2001 69.76 68.35
5548.62 11/8/2001 69.59 68.18
5549.03 12/3/2001 69.18 67.77
5548.97 1/3/2002 69.24 67.83
5549.19 2/6/2002 69.02 67.61
5549.66 3/26/2002 68.55 67.14
5549.64 4/9/2002 68.57 67.16
5550.01 5/23/2002 68.20 66.79
5549.97 6/5/2002 68.24 66.83
5550.13 7/8/2002 68.08 66.67
5550.30 8/23/2002 67.91 66.50
5550.50 9/11/2002 67.71 66.30
5550.90 10/23/2002 67.31 65.90
5550.83 11/22/2002 67.38 65.97
5551.04 12/3/2002 67.17 65.76
5551.24 1/9/2003 66.97 65.56
5551.23 2/12/2003 66.98 65.57
5551.52 3/26/2003 66.69 65.28
5551.64 4/2/2003 66.57 65.16
5549.02 5/1/2003 69.19 67.78
5544.74 6/9/2003 73.47 72.06
5543.78 7/7/2003 74.43 73.02
5543.39 8/4/2003 74.82 73.41
5543.05 9/11/2003 75.16 73.75
5543.19 10/2/2003 75.02 73.61
5543.21 11/7/2003 75.00 73.59
5543.40 12/3/2003 74.81 73.40
5548.10 1/15/2004 70.11 68.70
5549.50 2/10/2004 68.71 67.30
5550.87 3/28/2004 67.34 65.93
Water Levels and Data over Time
White Mesa Mill Well TW4-8
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water DepthWLLSD1MP1LIMonitorinublw.MP1 btw.LSDI Of Well
5616.80 5618.21 1.41 126.00
5551.33 4/12/2004 66.88 65.47
5551.87 5/13/2004 66.34 64.93
5551.92 6/18/2004 66.29 64.88
5552.69 7/28/2004 65.52 64.11
5549.78 8/30/2004 68.43 67.02
5547.46 9/16/2004 70.75 69.34
5545.21 10/11/2004 73.00 71.59
5545.09 11/16/2004 73.12 71.71
5545.61 12/22/2004 72.60 71.19
5545.24 1/18/2005 72.97 71.56
5545.42 2/28/2005 72.79 71.38
5545.45 3/15/2005 72.76 71.35
5545.46 4/26/2005 72.75 71.34
5545.66 5/24/2005 72.55 71.14
5545.54 6/30/2005 72.67 71.26
5545.43 7/29/2005 72.78 71.37
5545.61 9/12/2005 72.60 71.19
5545.52 12/7/2005 72.69 71.28
5546.53 3/8/2006 71.68 70.27
5546.51 6/13/2006 71.70 70.29
5546.51 7/18/2006 71.70 70.29
5546.46 11/7/2006 71.75 70.34
5547.92 2/27/2007 70.29 68.88
5547.01 5/2/2007 71.20 69.79
5547.40 8/14/2007 70.81 69.40
5547.57 10/10/2007 70.64 69.23
5548.76 3/26/2008 69.45 68.04
5549.17 6/24/2008 69.04 67.63
5549.31 8/26/2008 68.9 67.49
5549.37 10/14/2008 68.84 67.43
5549.72 3/3/2009 68.49 67.08
Water Levels and Data over Time
White Mesa Mill Well TW4-9
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water Depth
WL1 LSD MP LI Monitorina blw.MP blw.LSDI Of Well
5636.11 5637.59 1.48 121.33
5577.09 12/20/1999 60.5 59.02
5577.09 1/2/2000 60.5 59.02
5577.29 1/10/2000 60.3 58.82
5577.09 1/17/2000 60.5 59.02
5577.39 1/24/2000 60.2 58.72
5577.29 2/1/2000 60.3 58.82
5577.19 2/7/2000 60.4 58.92
5577.69 2/14/2000 59.9 58.42
5577.69 2/23/2000 59.9 58.42
5577.79 3/1/2000 59.8 58.32
5577.79 3/8/2000 59.8 58.32
5577.89 3/15/2000 59.7 58.22
5568.49 3/20/2000 69.1 67.62
5578.14 3/29/2000 59.45 57.97
5577.84 4/4/2000 59.75 58.27
5578.04 4/13/2000 59.55 58.07
5578.24 4/21/2000 59.35 57.87
5578.39 4/28/2000 59.2 57.72
5578.39 5/1/2000 59.2 57.72
5578.79 5/11/2000 58.8 57.32
5578.39 5/15/2000 59.2 57.72
5578.79 5/25/2000 58.8 57.32
5578.81 6/9/2000 58.78 57.30
5578.89 6/16/2000 58.7 57.22
5578.74 6/26/2000 58 85 57.37
5578.86 7/6/2000 58.73 57.25
5578.87 7/13/2000 58.72 57.24
5578.84 7/18/2000 58.75 57.27
5579.03 7/27/2000 58.56 57.08
5579.03 8/2/2000 58.56 57.08
5579.05 8/9/2000 58.54 57.06
5579.04 8/15/2000 58.55 57.07
5579.25 8/31/2000 58.34 56.86
5579.35 9/8/2000 58.24 56.76
5579.40 9/13/2000 58.19 56.71
5579.46 9/20/2000 58.13 56.65
5579.44 10/5/2000 58.15 56.67
5579.79 11/9/2000 57.8 56.32
5579.73 12/6/2000 57.86 56.38
5580.01 1/3/2001 57.58 56.10
5580.30 2/9/2001 57.29 55.81
5580.66 3/27/2001 56.93 55.45
Water Levels and Data over Time
White Mesa Mill Well TW4-9
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water DepthWLLSDMPMonitoringblw.MP blw.LSD Of Well
5636.11 5637.59 1.48 121.33
5580.75 4/30/2001 56.84 55.36
5581.04 5/31/2001 56.55 55.07
5581.12 6/21/2001 56.47 54.99
5581.15 7/10/2001 56.44 54.96
5581.51 8/20/2001 56.08 54.60
5581.70 9/19/2001 55.89 54.41
5581.61 10/2/2001 55.98 54.50
5581.04 5/31/2001 56.55 55.07
5581.12 6/21/2001 56.47 54.99
5581.15 7/10/2001 56.44 54.96
5581.51 8/20/2001 56.08 54.60
5581.70 9/19/2001 55.89 54.41
5581.61 10/2/2001 55.98 54.50
5581.83 11/8/2001 55.76 54.28
5582.17 12/3/2001 55.42 53.94
5582.21 1/3/2002 55.38 53.90
5582.57 2/6/2002 55.02 53.54
5583.12 3/26/2002 54.47 52.99
5582.77 4/9/2002 54.82 53.34
5583.21 5/23/2002 54.38 52.90
5582.94 6/5/2002 54.65 53.17
5582.71 7/8/2002 54.88 53.40
5583.67 8/23/2002 53.92 52.44
5583.82 9/11/2002 53.77 52.29
5584.01 10/23/2002 53.58 52.10
5583.88 11/22/2002 53.71 52.23
5583.81 12/3/2002 53.78 52.30
5584.28 1/9/2003 53.31 51.83
5584.41 2/12/2003 53.18 51.70
5584.68 3/26/2003 52.91 51.43
5584.49 4/2/2003 53.10 51.62
5584.51 5/1/2003 53.08 51.60
5583.59 6/9/2003 54.00 52.52
5582.96 7/7/2003 54.63 53.15
5582.98 8/4/2003 54.61 53.13
5582.57 9/11/2003 55.02 53.54
5582.25 10/2/2003 55.34 53.86
5582.09 11/7/2003 55.50 54.02
5582.48 12/3/2003 55.11 53.63
5583.69 1/15/2004 53.90 52.42
5583.89 2/10/2004 53.70 52.22
5584.30 3/28/2004 53.29 51.81
Water Levels and Data over Time
White Mesa Mill Well TW4-9
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water DepthWLLSDNIPMonitoringblw.MP blw.LSD Of Well
5636.11 5637.59 1.48 121.33
5584.59 4/12/2004 53.00 51.52
5584.87 5/13/2004 52.72 51.24
5584.96 6/18/2004 52.63 51.15
5585.50 7/28/2004 52.09 50.61
5584.81 8/30/2004 52.78 51.30
5584.40 9/16/2004 53.19 51.71
5583.91 10/11/2004 53.68 52.20
5583.39 11/16/2004 54.20 52.72
5583.54 12/22/2004 54.05 52.57
5583.34 1/18/2005 54.25 52.77
5583.66 2/28/2005 53.93 52.45
5583.87 3/15/2005 53.72 52.24
5584.74 4/26/2005 52.85 51.37
5585.26 5/24/2005 52.33 50.85
5585.06 6/30/2005 52.53 51.05
5584.67 7/29/2005 52.92 51.44
5584.75 9/12/2005 52.84 51.36
5584.51 12/7/2005 53.08 51.60
5585.74 3/8/2006 51.85 50.37
5584.74 6/13/2006 52.85 51.37
5584.26 7/18/2006 53.33 51.85
5584.21 11/7/2006 53.38 51.90
5584.67 2/27/2007 52.92 51.44
5584.06 5/2/2007 53.53 52.05
558i33 R/14/2007 52.26 50.7R
5585.42 10/10/2007 52.17 50.69
5587.01 3/26/2008 50.58 49.10
5585.44 6/24/2008 52.15 50.67
5585.23 8/26/2008 52.36 50.88
5584.42 10/14/2008 53.17 51.69
5583.59 3/3/2009 54 52.52
Water Levels and Data over Time
White Mesa Mifi Well TW4-1O
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water DepthWLLSDMPMonitoringblw.MP blw.LSD Of Well
5631.99 5634.24 2.25 121.33
5576.75 1/3/2002 57.49 55.24
5576.92 2/6/2002 57.32 55.07
5577.43 3/26/2002 56.81 54.56
5577.22 4/9/2002 57.02 54.77
5577.80 5/23/2002 56.44 54.19
5577.47 6/5/2002 56.77 54.52
5577.55 7/8/2002 56.69 54.44
5578.10 8/23/2002 56.14 53.89
5578.24 9/11/2002 56.00 53.75
5578.49 10/23/2002 55.75 53.50
5578.43 11/22/2002 55.81 53.56
5578.43 12/3/2002 55.81 53.56
5578.66 1/9/2003 55.58 53.33
5578.66 2/12/2003 55.58 53.33
5578.78 3/26/2003 55.46 53.21
5578.90 4/2/2003 55.34 53.09
5578.83 5/1/2003 55.41 53.16
5578.05 6/9/2003 56.19 53.94
5577.38 7/7/2003 56.86 54.61
5577.15 8/4/2003 57.09 54.84
5576.76 9/11/2003 57.48 55.23
5576.36 10/2/2003 57.88 55.63
5576.05 11/7/2003 58.19 55.94
5576.20 12/3/2003 58.04 55.79
557743 1/15/2004 56.81 54.56
5577.81 2/10/2004 56.43 54.18
5578.47 3/28/2004 55.77 53.52
5578.69 4/12/2004 55.55 53.30
5578.93 5/13/2004 55.31 53.06
5578.99 6/18/2004 55.25 53.00
5579.18 7/28/2004 55.06 52.81
5579.06 8/30/2004 55.18 52.93
5578.78 9/16/2004 55.46 53.21
5577.80 10/11/2004 56.44 54.19
5577.13 11/16/2004 57.11 54.86
5576.96 12/22/2004 57.28 55.03
5576.63 1/18/2005 57.61 55.36
5576.82 2/28/2005 57.42 55.17
5576.86 3/15/2005 57.38 55.13
5577.52 4/26/2005 56.72 54.47
5578.01 5/24/2005 56.23 53.98
5578.15 6/30/2005 56.09 53.84
Water Levels and Data over Time
White Mesa Mill Well TW4-1O
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water Depth
WL LSD MP Monitoring blw.MP blw.LSD Of Well
5631.99 5634.24 2.25 121.33
5577.90 7/29/2005 56.34 54.09
5578.02 9/12/2005 56.22 53.97
5577.56 12/7/2005 56.68 54.43
5579.69 3/8/2006 54.55 52.30
5578.34 6/13/2006 55.90 53.65
5577.94 7/18/2006 56.30 54.05
5578.01 11/7/2006 56.23 53.98
5578.43 2/27/2007 55.81 53.56
5577.84 5/2/2007 56.40 54.15
5578.74 8/14/2007 55.50 53.25
5579.04 10/10/2007 55.20 52.95
5580.69 3/26/2008 53.55 51.30
5579.87 6/24/2008 54.37 52.12
5579.47 8/26/2008 54.77 52.52
5578.87 10/14/2008 55.37 53.12
5578.01 3/10/2009 56.23 53.98
Water Levels and Data over Time
White Mesa Mill Well TW4-11
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water DepthWLLSDMPMonitoringblw.MP blw.LSD Of Well
5621.92 5623.62 1.70 121.33
5548.32 1/3/2002 75.30 73.60
5548.73 2/6/2002 74.89 73.19
5549.03 3/26/2002 74.59 72.89
5548.84 4/9/2002 74.78 73.08
5549.30 5/23/2002 74.32 72.62
5549.01 6/5/2002 74.61 72.91
5549.22 7/8/2002 74.40 72.70
5549.44 8/23/2002 74.18 72.48
5549.57 9/11/2002 74.05 72.35
5549.64 10/23/2002 73.98 72.28
5549.58 11/22/2002 74.04 72.34
5549.62 12/3/2002 74.00 72.30
5549.85 1/9/2003 73.77 72.07
5549.91 2/12/2003 73.71 72.01
5550.15 3/26/2003 73.47 71.77
5550.01 4/2/2003 73.61 71.91
5550.31 5/1/2003 73.31 71.61
5550.44 6/9/2003 73.18 71.48
5550.33 7/7/2003 73.29 71.59
5550.35 8/4/2003 73.27 71.57
5550.44 9/11/2003 73.18 71.48
5550.47 10/2/2003 73.15 71.45
5550.60 11/7/2003 73.02 71.32
5550.60 12/3/2003 73.02 71.32
5.550.94 1/15/2004 72.68 70.98
5551.00 2/10/2004 72.62 70.92
5550.34 3/28/2004 73.28 71.58
5551.54 4/12/2004 72.08 70.38
5551.89 5/13/2004 71.73 70.03
5551.94 6/18/2004 71.68 69.98
5552.49 7/28/2004 71.13 69.43
5552.74 8/30/2004 70.88 69.18
5553.01 9/16/2004 70.61 68.91
5553.11 10/11/2004 70.51 68.81
5553.19 11/16/2004 70.43 68.73
5553.53 12/22/2004 70.09 68.39
5553.31 1/18/2005 70.31 68.61
5553.84 2/28/2005 69.78 68.08
5554.04 3/15/2005 69.58 67.88
5554.23 4/26/2005 69.39 67.69
5553.87 5/24/2005 69.75 68.05
5554.46 6/30/2005 69.16 67.46
Water Levels and Data over Time
White Mesa Mill Well TW4-11
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water DepthWLLSDMPMonitoringblw.MP blw.LSD Of Well
5621.92 5623.62 1.70 121.33
5554.57 7/29/2005 69.05 67.35
5553.86 9/12/2005 69.76 68.06
5555.30 12/7/2005 68.32 66.62
5556.20 3/8/2006 67.42 65.72
5556.48 6/14/2006 67.14 65.44
5556.37 7/18/2006 67.25 65.55
5556.94 11/7/2006 66.68 64.98
5557.92 2/27/2007 65.7 64
5557.84 5/2/2007 65.78 64.08
5558.02 8/15/2007 65.60 63.90
5557.13 10/10/2007 66.49 64.79
5569.74 3/26/2008 53.88 52.18
5561.01 6/24/2008 62.61 60.91
5562.07 8/26/2008 61.55 59.85
5562.47 10/14/2008 61.15 59.45
5563.80 3/10/2009 59.82 58.12
Water Levels and Data over Time
White Mesa Mill Well TW4-12
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water DepthWLLSDMPMonitoringblw.MP blw.LSD Of Well
5622.38 5624.03 1.65 121.33
5580.71 8/23/2002 43.32 41.67
5581.34 9/11/2002 42.69 41.04
5581.13 10/23/2002 42.90 41.25
5581.27 11/22/2002 42.76 41.11
5581.35 12/3/2002 42.68 41.03
5582.38 1/9/2003 41.65 40.00
5582.27 2/12/2003 41.76 40.11
5582.51 3/26/2003 41.52 39.87
5581.91 4/2/2003 42.12 40.47
5582.72 5/1/2003 41.31 39.66
5582.93 6/9/2003 41.10 39.45
5583.01 7/7/2003 41.02 39.37
5583.11 8/4/2003 40.92 39.27
5583.35 9/11/2003 40.68 39.03
5583.52 10/2/2003 40.51 38.86
5583.57 11/7/2003 40.46 38.81
5583.81 12/3/2003 40.22 38.57
5584.17 1/15/2004 39.86 38.21
5584.19 2/10/2004 39.84 38.19
5584.31 3/28/2004 39.72 38.07
5584.70 4/12/2004 39.33 37.68
5584.68 5/13/2004 39.35 37.70
5584.73 6/18/2004 39.30 37.65
5585.16 7/28/2004 38.87 37.22
5585.18 8/30/2004 38.85 37.20
5585.29 9/16/2004 38.74 37.09
5585.65 10/11/2004 38.38 36.73
5585.71 11/16/2004 38.32 36.67
5586.15 12/22/2004 37.88 36.23
5585.94 1/18/2005 38.09 36.44
5586.36 2/28/2005 37.67 36.02
5586.75 3/15/2005 37.28 35.63
5587.00 4/26/2005 37.03 35.38
5587.15 5/24/2005 36.88 35.23
5587.38 6/30/2005 36.65 35.00
5587.38 7/29/2005 36.65 35.00
5587.74 9/12/2005 36.29 34.64
5588.23 12/7/2005 35.80 34.15
5588.72 3/8/2006 35.31 33.66
5588.14 6/13/2006 35.89 34.24
5588.13 7/18/2006 35.90 34.25
5584.50 11/7/2006 39.53 37.88
Water Levels and Data over Time
White Mesa Mill Well TW4-12
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water DepthWLLSDMPMonitoringblw.MP blw.LSD Of Well
5622.38 5624.03 1.65 121.33
5588.65 2/27/2007 35.38 33.73
5588.33 5/2/2007 35.70 34.05
5586.29 8/14/2007 37.74 36.09
5586.48 10/10/2007 37.55 35.90
5587.56 3/26/2008 36.47 34.82
5587.39 6/24/2008 36.64 34.99
5587.15 8/26/2008 36.88 35.23
5586.64 10/14/2008 37.39 35.74
5585.97 3/3/2009 38.06 36.41
Water Levels and Data over Time
White Mesa Mill Well TW4-13
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water DepthWLLSDMPMonitoringblw.MP blw.LSD Of Well
5618.09 5619.94 1.85 121.33
5529.66 8/23/2002 90.28 88.43
5530.66 9/11/2002 89.28 87.43
5529.10 10/23/2002 90.84 88.99
5530.58 11/22/2002 89.36 87.51
5530.61 12/3/2002 89.33 87.48
5529.74 1/9/2003 90.20 88.35
5531.03 2/12/2003 88.91 87.06
5531.82 3/26/2003 88.12 86.27
5524.63 4/2/2003 95.31 93.46
5531.54 5/1/2003 88.40 86.55
5538.46 6/9/2003 81.48 79.63
5539.38 7/7/2003 80.56 78.71
5540.72 8/4/2003 79.22 77.37
5541.25 9/11/2003 78.69 76.84
5541.34 10/2/2003 78.60 76.75
5541.69 11/7/2003 78.25 76.40
5541.91 12/3/2003 78.03 76.18
5542.44 1/15/2004 77.50 75.65
5542.47 2/10/2004 77.47 75.62
5542.84 3/28/2004 77.10 75.25
5543.08 4/12/2004 76.86 75.01
5543.34 5/13/2004 76.60 74.75
5543.40 6/18/2004 76.54 74.69
5544.06 7/28/2004 75.88 74.03
5544.61 8/30/2004 75.33 73.48
5545.23 9/16/2004 74.71 72.86
5546.20 10/11/2004 73.74 71.89
5547.43 11/16/2004 72.51 70.66
5548.96 12/22/2004 70.98 69.13
5549.02 1/18/2005 70.92 69.07
5550.66 2/28/2005 69.28 67.43
5551.26 3/15/2005 68.68 66.83
5552.23 4/26/2005 67.71 65.86
5552.87 5/24/2005 67.07 65.22
5553.42 6/30/2005 66.52 64.67
5554.00 7/29/2005 65.94 64.09
5555.21 9/12/2005 64.73 62.88
5558.13 12/7/2005 61.81 59.96
5562.93 3/8/2006 57.01 55.16
5564.39 6/13/2006 55.55 53.70
5562.09 7/18/2006 57.85 56.00
5565.49 11/7/2006 54.45 52.60
Water Levels and Data over Time
White Mesa Mill Well TW4-13
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water DepthWLLSDMPMonitoringblw.MP blw.LSD Of Well
5618.09 5619.94 1.85 121.33
5571.08 2/27/2007 48.86 47.01
5570.63 5/2/2007 49.31 47.46
5565.24 8/14/2007 54.7 52.85
5565.83 10/10/2007 54.11 52.26
5569.29 3/26/2008 50.65 48.80
5570.00 6/24/2008 49.94 48.09
5570.41 8/26/2008 49.53 47.68
5570.64 10/14/2008 49.3 47.45
5570.43 3/3/2009 49.51 47.66
Water Levels and
Data over Time
White Mesa Mill
Well TW4-14
Total or
Leagth Measured Total Total
Water Laad Of Depth to Depth to Depth
Elevation Surface Measuring Point Elevation Riser Date Of Water Water Of
WL LSD MP Monitoring blw.MP blw.LSD Well
5610.92 5612.77 1.85 121.33
5518.90 8/23/2002 93.87 92.02
5519.28 9/11/2002 93.49 91.64
5519.95 10/23/2002 92.82 90.97
5520.32 11/22/2002 92.45 90.60
5520.42 12/3/2002 92.35 90.50
5520.70 1/9/2003 92.07 90.22
5520.89 2/12/2003 91.88 90.03
5521.12 3/26/2003 91.65 89.80
5521.12 4/2/2003 91.65 89.80
5521.24 5/1/2003 91.53 89.68
5521.34 6/9/2003 91.43 89.58
5521.36 7/7/2003 91.41 89.56
5521.35 8/4/2003 91.42 89.57
5521.30 9/11/2003 91.47 89.62
5521.35 10/2/2003 91.42 89.57
5521.36 11/7/2003 91.41 89.56
5521.16 12/3/2003 91.61 89.76
5521.29 1/15/2004 91.48 89.63
5521.36 2/10/2004 91.41 89.56
5521.46 3/28/2004 91.31 89.46
5521.54 4/12/2004 91.23 89.38
5521.59 5/13/2004 91.18 89.33
552L69 6/18/2004 91.08 89.23
5521.71 7/28/2004 91.06 89.21
5521.76 8/30/2004 91.01 89.16
5521.77 9/16/2004 91.00 89.15
5521.79 10/11/2004 90.98 89.13
5521.80 11/16/2004 90.97 89.12
5521.82 12/22/2004 90.95 89.10
5521.82 1/18/2005 90.95 89.10
5521.86 2/28/2005 90.91 89.06
5521.85 3/15/2005 90.92 89.07
5521.91 4/26/2005 90.86 89.01
5521.93 5/24/2005 90.84 88.99
5521.94 6/30/2005 90.83 88.98
5521.84 7/29/2005 90.93 89.08
5521.99 9/12/2005 90.78 88.93
5522.04 12/7/2005 90.73 88.88
5522.05 3/8/2006 90.72 88.87
5522.27 6/13/2006 90.50 88.65
Water Levels and
Data over Time
White Mesa Mill
Well TW4-14
Total or
Length Measnred Total Total
Water Land Of Depth to Depth to Depth
Elevation Surface Measuring Point Elevation Riser Date Of Water Water Of
WL LSD MP Monitoring blw.MP blw.LSD Well
5610.92 5612.77 1.85 121.33
5521.92 7/18/2006 90.85 89.00
5520.17 11/7/2006 92.60 90.75
5522.24 2/27/2007 90.53 88.68
5522.47 5/2/2007 90.30 88.45
5520.74 8/14/2007 92.03 90.18
5518.13 10/10/2007 94.64 92.79
5522.85 3/26/2008 89.92 88.07
5522.91 6/24/2008 89.86 88.01
5523.01 8/26/2008 89.76 87.91
5522.96 10/14/2008 89.81 87.96
5523.20 3/3/2009 89.57 87.72
Water Levels and Data over Time
White Mesa Mill Well TW4-15 MW-26
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water DepthWLLSDMPMonitoringblw.MP blw.LSD Of Well
5624.15 5625.45 1.30 121.33
5574.75 8/23/2002 50.70 49.40
5574.97 9/11/2002 50.48 49.18
5575.10 10/23/2002 50.35 49.05
5574.99 11/22/2002 50.46 49.16
5575.28 12/3/2002 50.17 48.87
5575.41 1/9/2003 50.04 48.74
5575.43 2/12/2003 50.02 48.72
5575.63 3/26/2003 49.82 48.52
5575.91 4/2/2003 49.54 48.24
5575.81 5/1/2003 49.64 48.34
5572.36 6/9/2003 53.09 51.79
5570.70 7/7/2003 54.75 53.45
5570.29 8/4/2003 55.16 53.86
5560.94 9/11/2003 64.51 63.21
5560.63 10/2/2003 64.82 63.52
5560.56 11/7/2003 64.89 63.59
5564.77 12/3/2003 60.68 59.38
5570.89 1/15/2004 54.56 53.26
5572.55 2/10/2004 52.90 51.60
5574.25 3/28/2004 51.20 49.90
5574.77 4/12/2004 50.68 49.38
5575.53 5/13/2004 49.92 48.62
5575.59 6/18/2004 49.86 48.56
5576.82 7/28/2004 48.63 47.33
5527.47 9/16/2004 97.98 96.68
5553.97 11/16/2004 71.48 70.18
5562.33 12/22/2004 63.12 61.82
5550.00 1/18/2005 75.45 74.15
5560.02 4/26/2005 65.43 64.13
5546.11 5/24/2005 79.34 78.04
5556.71 6/30/2005 68.74 67.44
5554.95 7/29/2005 70.50 69.20
5555.48 9/12/2005 69.97 68.67
5551.09 12/7/2005 74.36 73.06
5552.85 3/8/2006 72.60 71.30
5554.30 6/13/2006 71.15 69.85
5554.87 7/18/2006 70.58 69.28
5550.88 11/7/2006 74.57 73.27
5558.77 2/27/2007 66.68 65.38
5548.54 5/2/2007 76.91 75.61
5551.33 10/10/2007 74.12 72.82
5545.56 3/26/2008 79.89 78.59
Water Levels and Data over Time
White Mesa Mill Well TW4-15 MW-26
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water DepthWLLSDMPMonitoringblw.MP blw.LSD Of Well
5624.15 5625.45 1.30 121.33
5545.56 6/25/2008 79.89 78.59
5545.82 8/26/2008 79.63 78.33
5545.64 10/14/2008 79.81 78.51
5544.45 3/3/2009 81 79.70
Water Levels and Data over Time
White Mesa Mill Well TW4-16
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water DepthWILSDMPILIMonitoringhlw.MP1 blw.LSDI Of We
5622.19 5624.02 1.83 121.33
5562.91 8/23/2002 61.11 59.28
5563.45 9/11/2002 60.57 58.74
5563.75 10/23/2002 60.27 58.44
5563.68 11/22/2002 60.34 58.51
5563.68 12/3/2002 60.34 58.51
5564.16 1/9/2003 59.86 58.03
5564.25 2/12/2003 59.77 57.94
5564.53 3/26/2003 59.49 57.66
5564.46 4/2/2003 59.56 57.73
5564.79 5/1/2003 59.23 57.40
5564.31 6/9/2003 59.71 57.88
5563.29 7/7/2003 60.73 58.90
5562.76 8/4/2003 61.26 59.43
5561.73 9/11/2003 62.29 60.46
5561.04 10/2/2003 62.98 61.15
5560.39 11/7/2003 63.63 61.80
5559.79 12/3/2003 64.23 62.40
5561.02 1/15/2004 63.00 61.17
5561.75 2/10/2004 62.27 60.44
5562.98 3/28/2004 61.04 59.21
5563.29 4/12/2004 60.73 58.90
5564.03 5/13/2004 59.99 58.16
5564.09 6/18/2004 59.93 58.10
5565.08 7/28/2004 58.94 57.11
5564.56 8/30/2004 59.46 57.63
5563.55 9/16/2004 60.47 58.64
5561.79 10/11/2004 62.23 60.40
5560.38 11/16/2004 63.64 61.81
5559.71 12/22/2004 64.31 62.48
5559.14 1/18/2005 64.88 63.05
5558.65 2/28/2005 65.37 63.54
5558.54 3/15/2005 65.48 63.65
5558.22 4/26/2005 65.80 63.97
5558.54 5/24/2005 65.48 63.65
5559.24 6/30/2005 64.78 62.95
5559.38 7/29/2005 64.64 62.81
5559.23 9/12/2005 64.79 62.96
5557.67 12/7/2005 66.35 64.52
5557.92 3/8/2006 66.10 64.27
5558.47 6/13/2006 65.55 63.72
5558.42 7/18/2006 65.60 63.77
5558.09 11/7/2006 65.93 64.10
Water Levels and Data over Time
White Mesa Mill Well TW4-16
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
ELevation Surface Elevation Of Riser Date Of Water Water DepthWLLSDMPMonitoringblw.MP blw.LSD Of Well
5622.19 5624.02 1.83 121.33
5557.34 2/27/2007 66.68 64.85
5547.11 5/2/2007 76.91 75.08
5558.52 8/14/2007 65.5 63.67
5559.02 10/10/2007 65.00 63.17
5561.04 3/26/2008 62.98 61.15
5560.06 6/24/2008 63.96 62.13
5559.32 8/26/2008 64.7 62.87
5558.89 10/14/2008 65.13 63.30
5558.40 3/3/2009 65.62 63.79
Water Levels and Data over Time
White Mesa Mifi Well TW4-17 MW-32
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water DepthWLLSDMPMonitoringblw.MP blw.LSD Of Well
5623.41 5625.24 1.83 121.33
5542.17 8/23/2002 83.07 81.24
5542.39 9/11/2002 82.85 81.02
5542.61 10/23/2002 82.63 80.80
5542.49 11/22/2002 82.75 80.92
5542.82 12/3/2002 82.42 80.59
5543.03 1/9/2003 82.21 80.38
5543.04 2/12/2003 82.20 80.37
5543.41 3/26/2003 81.83 80.00
5543.69 4/2/2003 81.55 79.72
5543.77 5/1/2003 81.47 79.64
5544.01 6/9/2003 81.23 79.40
5544.05 7/7/2003 81.19 79.36
5543.99 8/4/2003 81.25 79.42
5544.17 9/11/2003 81.07 79.24
5544.06 10/2/2003 81.18 79.35
5544.03 11/7/2003 81.21 79.38
5543.94 12/3/2003 81.30 79.47
5543.98 1/15/2004 81.26 79.43
5543.85 2/10/2004 81.39 79.56
5544.05 3/28/2004 81.19 79.36
5544.33 4/12/2004 80.91 79.08
5544.55 5/13/2004 80.69 78.86
5544.59 6/18/2004 80.65 78.82
5545.08 7/28/2004 80.16 78.33
554516 8/30/2004 79.98 78J5
5545.48 9/16/2004 79.76 77.93
5545.61 10/11/2004 79.63 77.80
5545.46 11/16/2004 79.78 77.95
5545.66 12/22/2004 79.58 77.75
5545.33 1/18/2005 79.91 78.08
5545.51 2/28/2005 79.73 77.90
5545.57 3/15/2005 79.67 77.84
5545.46 4/26/2005 79.78 77.95
5545.45 5/24/2005 79.79 77.96
5545.33 6/30/2005 79.91 78.08
5545.16 7/29/2005 80.08 78.25
5545.54 9/12/2005 79.70 77.87
5545.77 12/7/2005 79.47 77.64
5546.09 3/8/2006 79.15 77.32
5545.94 6/13/2006 79.30 77.47
5545.94 7/18/2006 79.30 77.47
5546.24 11/7/2006 79.00 77.17
Water Levels and Data over Time
White Mesa Mill Well TW4-17 MW-32
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water DepthWLLSDMPMonitoringblw.MP blw.LSD Of Well
5623.41 5625.24 1.83 121.33
5546.81 2/27/2007 78.43 76.6
5546.56 5/2/2007 78.68 76.85
5546.81 8/15/2007 78.43 76.6
5546.96 10/10/2007 78.28 76.45
5547.9 3/26/2008 77.34 75.51
5548.08 6/25/2008 77.16 75.33
5548.42 8/26/2008 76.82 74.99
5548.05 10/14/2008 77.19 75.36
5548.29 3/3/2009 76.95 75.12
Water Levels and Data over Time
White Mesa Mill Well TW4-18
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water DepthWLLSDMPMonitoringblw.MP blw.LSD Of Well
5639.13 5641.28 2.15 121.33
5585.13 8/23/2002 56.15 54.00
5585.41 9/11/2002 55.87 53.72
5585.47 10/23/2002 55.81 53.66
5585.40 11/22/2002 55.88 53.73
5585.68 12/3/2002 55.60 53.45
5585.90 1/9/2003 55.38 53.23
5590.79 2/12/2003 50.49 48.34
5586.18 3/26/2003 55.10 52.95
5586.36 4/2/2003 54.92 52.77
5586.24 5/1/2003 55.04 52.89
5584.93 6/9/2003 56.35 54.20
5584.46 7/7/2003 56.82 54.67
5584.55 8/4/2003 56.73 54.58
5584.01 9/11/2003 57.27 55.12
5583.67 10/2/2003 57.61 55.46
5583.50 11/7/2003 57.78 55.63
5584.08 12/3/2003 57.20 55.05
5585.45 1/15/2004 55.83 53.68
5585.66 2/10/2004 55.62 53.47
5586.13 3/28/2004 55.15 53.00
5586.39 4/12/2004 54.89 52.74
5586.66 5/13/2004 54.62 52.47
5586.77 6/18/2004 54.51 52.36
5587.35 7/28/2004 53.93 51.78
5586.34 8/30/2004 54.94 52.79
5585.85 9/16/2004 55.43 53.28
5585.22 10/11/2004 56.06 53.91
5584.70 11/16/2004 56.58 54.43
5584.81 12/22/2004 56.47 54.32
5584.68 1/18/2005 56.60 54.45
5585.02 2/28/2005 56.26 54.11
5585.25 3/15/2005 56.03 53.88
5586.31 4/26/2005 54.97 52.82
5586.97 5/24/2005 54.31 52.16
5586.58 6/30/2005 54.70 52.55
5586.10 7/29/2005 55.18 53.03
5586.05 9/12/2005 55.23 53.08
5585.86 12/7/2005 55.42 53.27
5587.13 3/8/2006 54.15 52.00
5585.93 6/13/2006 55.35 53.20
5585.40 7/18/2006 55.88 53.73
5585.38 11/7/2006 55.90 53.75
Water Levels and Data over Time
White Mesa Mill Well TW4-18
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water Depth
WL LSD NIP Monitoring blw.MP blw.LSD Of Well
5639.13 5641.28 2.15 121.33
5585.83 2/27/2007 55.45 53.30
5585.15 5/2/2007 56.13 53.98
5586.47 6/24/2008 54.81 52.66
5586.3 8/26/2008 54.98 52.83
5585.21 10/14/2008 56.07 53.92
5584.47 3/3/2009 56.81 54.66
Water Levels and Data over Time
White Mesa Mill Well TW4-19
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to
Elevation Surface Elevation Of Riser Date Of Water Water Total Depth Of
WL LSD NIP Monitoring blw.MP blw.LSD Well
5629.53 5631.39 1.86 121.33
5581.88 8/23/2002 49.51 47.65
5582.14 9/11/2002 49.25 47.39
5582.06 10/23/2002 49.33 47.47
5582.07 11/22/2002 49.32 47.46
5582.16 12/3/2002 49.23 47.37
5582.28 1/9/2003 49.11 47.25
5582.29 2/12/2003 49.10 47.24
5582.74 3/26/2003 48.65 46.79
5582.82 4/2/2003 48.57 46.71
5548.47 5/1/2003 82.92 81.06
5564.76 6/9/2003 66.63 64.77
5562.53 7/7/2003 68.86 67.00
5564.10 8/4/2003 67.29 65.43
5566.01 8/30/2004 65.38 63.52
5555.16 9/16/2004 76.23 74.37
5549.80 10/11/2004 81.59 79.73
5546.04 11/16/2004 85.35 83.49
5547.34 12/22/2004 84.05 82.19
5548.77 1/18/2005 82.62 80.76
5551.18 2/28/2005 80.21 78.35
5556.81 3/15/2005 74.58 72.72
5562.63 4/26/2005 68.76 66.90
5573.42 5/24/2005 57.97 56.11
5552.94 7/29/2005 78.45 76.59
5554.00 9/12/2005 77.39 75.53
5555.98 12/7/2005 75.41 73.55
5552.00 3/8/2006 79.39 77.53
5545.74 6/13/2006 85.65 83.79
5544.06 7/18/2006 87.33 85.47
5548.81 11/7/2006 82.58 80.72
5543.59 2/27/2007 87.8 85.94
5544.55 5/2/2007 86.84 84.98
5558.97 8/15/2007 72.42 70.56
5559.73 10/10/2007 71.66 69.8
5569.26 3/26/2008 62.13 60.27
5535.47 6/25/2008 95.92 94.06
5541.41 8/26/2008 89.98 88.12
5558.45 10/14/2008 72.94 71.08
5536.9 3/3/2009 94.49 92.63
5565.70
5546.53
5540.29
5541.17
5540.33
5530.43
5569.13
5547.95
5550.58
5563.60
5555.85
5569.10
5560.00
5539.64
5539.51
5553.00
5629.53
7/29/2005
8/30/2005
9/12/2005
12/7/2005
3/8/2006
6/13/2006
7/18/2006
11/7/2006
2/27/2007
5/2/2007
8/14/2007
10/10/2007
3/26/2008
6/25/2008
8/26/2008
10/14/2008
3/3/2009
Measured Total
Depth to Depth to Total
Water Water Depth Of
blw.MP blw.LSD Well
63.83
83.00
89.24
88.36
89.20
99.10
60.40
81.58
80.28
78.95
65.93
73.68
60.43
69.53
89.89
90.02
76.53
Water Levels and Data over Time
White Mesa Mifi Well TW4-20
Total or
Measuring
Water Land Point
Elevation Surface Elevation Leagth Of Date Of
WL LSD MP Riser Monitoring
5628.52 5629.53 1.01 106.0
Water Levels and Data over Time
White Mesa Mill Well TW4-21
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
WL LSD MP Riser Monitoring blw.MP blw.LSD Well
5638.20 5639.35 1.15 120.92
5582.98 7/29/2005 56.37
5583.43 8/30/2005 55.92
5581.87 9/12/2005 57.48
5580.50 12/7/2005 58.85
5583.64 3/8/2006 55.71
5580.55 6/13/2006 58.80
5578.95 7/18/2006 60.40
5578.47 11/7/2006 60.88
5579.53 2/27/2007 59.82
5578.07 5/2/2007 61.28
5583.41 8/15/2007 55.94
5583.45 10/10/2007 55.9
5586.47 3/26/2008 52.88
5579.16 6/24/2008 60.19
5579.92 8/26/2008 59.43
5577.37 10/14/2008 61.98
5578.00 3/10/2009 61.35
Water Levels and Data over Time
White Mesa Mill Well TW4-22
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
WL LSD MP Riser Monitoring blw.MP blw.LSD Well
5627.83 5629.00 1.17 113.5
5571.89 7/29/2005 57.11
5572.20 8/30/2005 56.80
5572.08 9/12/2005 56.92
5571.61 12/7/2005 57.39
5571.85 3/8/2006 57.15
5571.62 6/13/2006 57.38
5571.42 7/18/2006 57.58
5571.02 11/7/2006 57.98
5571.24 2/27/2007 57.76
5570.75 6/29/2007 58.25
5571.82 8/14/2007 57.18
5571.99 10/10/2007 57.01
5573.05 3/26/2008 55.95
5573.04 6/24/2008 55.96
5573.04 8/26/2008 55.96
5573.02 10/14/2008 55.98
5573.19 3/10/2009 55.81
ENERGYLASORA TORIES INC 2393 Sail CreekHibway 82601 P0 Box 3258 Casper WY82602
Toll Free 888.235.0515 3072350515 Far 307234.1639 casperfflenergy/ab corn www.energylab.com
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04106/09
Project 1st Quarter Chloroform Collection Date 03/04/09 0907
Lab ID C09030258-015 DateReceived 03/06/09
Client Sample ID MW-4 Matrix Aqueous
MCLJ
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride 37 mg/L A4500-Cl 03/17/09 1624/sp
Nitrogen NitrateNitrite as 5.7 mg/L 0.1 E353.2 03/16/09 1127 /jal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride 1.5 ug/L 1.0 5W8260B 03/11/09 0435 wen
Chloroform 2200 ug/L 200 SW8260B 03/11/09 0117 wen
Chloromethane ND ug/L 1.0 SW8260B 03/11/09 0435 wen
Methylene chloride ND ug/L 1.0 SW8260B 03/11/09 0435 wen
Surr 12-Dichlorobenzene-d4 111 %REC 80-1 20 SW8260B 03/11/09 0435 /wen
Surr Dibromofluoromethane 107 %REC 70-130 SW8260B 03/11/09 0435 wen
Surr p-Bromofluorobenzene 118 %REC 80-120 SWB26OB 03/11/09 0435 wen
Surr Toluene-d8 104 %REC 80-120 SW8260B 03/11/09 0435 wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
EPERGY
LASORA TORIES
Client
Project
Lab ID
Client Sample ID
ENERGYLASORA TORIES INC 2393 Sail Creak Hq/7way 82601 P0 Box 3258 Casper WV82602
Toil Free 888.235.0515 307235.0515 Fax [phone] casperc0energy/ab.com wM4.energy/aA corn
LABORATORY ANALYTICAL REPORT
Denison Mines USA Corp Report Date 04/03/09
1st Quarter Chloroform Collection Date 03/11/09 1018
C09030452-006 DateReceived 03/13/09
TW 4-1 Matrix Aqueous
MCL
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride 37 mgL A4500-CI 0324/09 1307 /sp
Nitrogen NitrateNitrite as 7.5 mg/L 0.2 E353.2 03/18/09 1513/jal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride 1.1 ug/L 1.0 SW8260B 03/20/09 0252 Iwen
Chloroform 1700 ug/L 200 SW8260B 03/20/09 1614 wen
Chloromethane ND ug/L 1.0 SW8260B 03/20/09 0252 wen
Methylene chloride ND ug/L 1.0 SW8260B 03/20/09 0252 wen
Surr 2-Dichlorobenzene-d4 112 %REC 80-120 SW8260B 03/20/09 0252 wen
Surr Dibromofluoromethane 123 %REC 70-130 SW8260B 03/20/09 0252 wen
Surr p-Bromofluorobenzene 121 %REC 80-120 SW8260B 03/20/09 0252 /wen
Surr Toluene-d8 105 %REC 80-1 20 SW8260B 03/20/09 0252 /wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
RL increased due to sample matrix interference Spike recovery outside of advisory limits
ENERGVLABORA TORIES INC p2393 Sail Creek Hthway 82601 P0 Box 3258 Caspe WY 82602
Toll Free 888.235.0515 307235.0515 Far 307234.1639 casper9energy/ab.com wwwenergy/ab.comENERGY
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04/03/09
Project 1St Quarter Chloroform Collection Date 03/11/09 1040
Lab ID C09030452-008 DateReceived 03/13/09
Client Sample ID 1W 4-2 Matrix Aqueous
MCL/
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride 46 mg/L A4500-Cl 03/24/09 1310 /sp
Nitrogen NitrateNitrite as 6.5 mg/L 0.2 E353.2 03/18/09 1515 /jal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride 2.2 ug/L 1.0 SW8260B 03/20/09 0408 wen
Chloroform 3100 ug/L 200 5W8260B 03/20/09 1730 /wen
Chloromethane ND ug/L 1.0 SW8260B 03/20/09 0408 wen
Methylene chloride ND ug/L 1.0 SW8260B 03/20/09 0408 wen
Surr 2-Dichlorobenzene-d4 110 %REC 80-120 SW8260B 03/20/09 0408 wen
Sum Dibromofluoromethane 123 %REC 70-130 SW8260B 03/20/09 0408 wen
Surr p-Bromofluorobenzene 126 %REC 80-120 SW8260B 03/20/09 0408/wen
Surr Toluene-d8 106 %REC 80-120 SW8260B 03/20/09 0408 wen
Report RL Analyte reporting limit MCL Maximum contaminant level
DefinitIons QCL Quality control limit ND Not detected at the reporting limit
RL increased due to sample matrix interference Spike recovery outside of advisory limits
ENERGYLABORA TORIES INC 2393 Sail CreekHi/iway 8260 P0 Box 3258 Caspai bVY82602
roll Free 8882350515 307235 0515 Fm-307234.1639 casperenergyIaLz corn www energy/at cornEIERGY
LARORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04/06/09
Project 1st Quarter Chloroform Collection Date 03/04/09 1310
Lab ID C09030258-001 DateRecelved 03/06/09
Client Sample ID TW4-3 Matrix Aqueous
MCL/
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride 21 mg/L A4500-Cl 03/17/09 1600/sp
Nitrogen NitrateNitrite as 2.5 mg/L 0.1 E353.2 03/16/09 1032/jal
VOLA11LE ORGANIC COMPOUNDS
Carbon tetraohloride ND ugL SW8260B 03/1 0/09 0235 wen
Chloroform ND ugL SW8260B 03/10/09 0235 wen
Chioromethane ND ug/L SW8260B 03/10/09 0235 wen
Methylene chloride ND ug/L SW8260B 03/10/09 0235 /wen
Surr 2-Dichlorobenzene-d4 111 %REC 80-120 SW8260B 03/10/09 0235 wen
Surr Dibromofluoromethane 102 %REC 70-130 5W8260B 03/10/09 0235 wen
Surr p-Bromofluorobenzene 112 %REC 80-120 SWB26OB 03/10/09 0235/wen
Surr Toluene-d8 105 %REC 80-120 SWB26OB 03/10/09 0235 /wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERGVLABORA TORIES INC 2393 Sail Creek Highway 82501 RO Box 3258 Caspei WY82502
____________Toll Free 888.235 0515 307235.0515 Fa 307234.1539 caspenllenergy/aA corn www.energy/aA corn
LABORATORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04/06/09
Project 1st Quarter Chloroform Collection Date 03/04/09 1329
Lab ID C09030258-016 DateReceived 03/06/09
Client Sample ID 1W4-4 Matrix Aqueous
MCLI
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride 37 mg/L A4500-Cl 03/17109 1625 /sp
Nitrogen NitrateNitrite as 10.2 mg/L 0.2 E353.2 03/16/09 1202/jal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride 1.2 ug/L 1.0 SW8260B 03111109 0515 wen
Chloroform 2200 ug/L 200 SW8260B 03/11/09 0156 wen
Chloromethane ND ug/L 1.0 5W8260B 03/11/09 0515 Iwen
Methylene chloride ND ug/L 1.0 SW8260B 03/11/09 0515 /wen
Surr 2-Dichlorobenzene-d4 110 %REC 80-120 SW8260B 03/11/09 0515 wen
Surr Dibromofluoromethane 106 %REC 70-130 SW8260B 03/11/09 0515/wen
Surr p-Bromofluorobenzene 122 %REC 80-120 SW8260B 03/11/09 0515/wen
Surr Toluene-d8 106 %REC 80-1 20 SW8260B 03/11/090515 wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
RL increased due to sample matrix interference Spike recovery outside of advisory limits
ENERGYLASORA TORIES INC 2393 Sail Creek Hii/iway 82601 P0 Box 3258 Caspei WY82602IYTollFree888.235.0515 3072350515 Fax [phone] casperenergy/ab.com wwwenergy/ab.corn
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04/06/09
Project 1st Quarter Chloroform Collection Date 03/04/09 1250
Lab ID C09030258-01 DateReceived 03/06/09
Client Sample ID 1W4-5 Matrix Aqueous
MCL/
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride 34 mg/L A4500-Cl 03/17/09 1622 Isp
Nitrogen NitrateNitrite as 7.9 mg/L 0.2 E353.2 03/16/09 1157 Ijal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride ND ugIL 1.0 SW8260B 03/10/09 1813 /wen
Chloroform 12 ug/L 1.0 SW8260B 03/10/09 1813 /wen
Chioromethane ND ug/L 1.0 5W8260B 03/10/09 1813 Iwen
Methylene chloride ND ug/L 1.0 SW8260B 03/10/09 1813 Iwen
Surr 2-Dichlorobenzene-d4 110 %REC 80-120 SW8260B 03/10/09 1813 wen
Surr Dibromofluoromethane 98.0 %REC 70-1 30 SW8260B 03/10/09 1813 /wen
Surr p-Bromofluorobenzene 118 %REC 80-120 SW8260B 03/10/09 1813 wen
Surr Toluene-d8 104 %REC 80-120 SW82608 03/10/09 1813 wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
RL increased due to sample matrix interference
EIERGY
LABOR/I TORIES
ENERG VLASORA TORIES INC 2393 Sail Creek HI/way 82601 RO Box 3258 Caspet WY82602
Toil Free 889.235 0515 3072350515 Far 307234.1639 caspeitenergy/ab corn wwEenergyIab.corn
LABORATORY ANALYTICAL REPORT
Client
Project
LabID
Client Sample ID
Denison Mines USA Corp
1st Quarter Chloroform
C09030452-001
TW 4-6
Report Date 04/03/09
Collection Date 03/11/09 1009
DateReceived 03/13/09
Matrix Aqueous
MCLI
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride
Nitrogen NitrateNitrite as
35 mgL
2.2 mgL
A4500-Cl 03/24109 1250 sp
0.1 E353.2 03/18/09 1443/jal
Chloroform
Chioromethane
Methylene chloride
Surr 2-Dichlorobenzene-d4
Surr Dibromofluoromethane
Surr p-Bromofluorobenzene
Surr Toluene-d8
ND ugL
81 ugh
ND ugL
ND ug/L
111 %REC
118 %REC
123 %REC
108 %REC
1.0
1.0
80-1 20
70-130
80-120
80-1 20
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
5W82605
SW8260B
03/19109 2341 wen
03/19/09 2341 /wen
03/19/09 2341 wen
03/19/09 2341 /wen
03/19/09 2341 wen
03/19/09 2341 /wen
03/19/09 2341 /wen
03/19/09 2341 /wen
Report RL Analyte reporting limit
DefInitions QCL Quality control limit
MCL Maximum contaminant level
ND Not detected at the reporting limit
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride 1.0
1.0
Spike recovery outside of advisory limits
ENERGVLABORA TORIES INC -2393 Salt Creek Hi/iway 82601 RO Box 3258 Caspei WV82602
roll Free 888.235.0515-307235.0515 Fax [phone] casperenergylab.com www.energylab.comEtERGY
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04103/09
Project 1st Quarter Chloroform Collection Date 03/11/09 1025
Lab ID C09030452-007 DateReceived 03/13109
Client Sample ID TW 4-7 Matrix Aqueous
MW
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride 35 mg/L A4500-Cl 03/24109 1308 Isp
Nitrogen NitrateNitrite as 3.7 mgIL 0.1 E353.2 03118109 1503 /jal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride 1.2 ug/L 1.0 SW8260B 03/20/09 03301 wen
Chloroform 1800 ug/L 200 SW8260B 03/20/09 1652 wen
Chloromethane ND ug/L 1.0 SW8260B 03/20/09 0330/wen
Methylene chloride ND ug/L 1.0 SW8260B 03/20/09 0330/wen
Surr 2-Dichlorobenzene-d4 110 %REC 80-120 SW82608 03/20/09 0330/wen
Surr Dibromofluoromethane 121 %REC 70-130 SW8260B 03/20/09 0330/wen
Surr p-Bromofluorobenzene 122 %REC 80-120 SW8260B 03/20/09 0330/wen
Surr Toluene-d8 106 %REC 80-120 SW8260B 03/20/09 0330/wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
Spike recovery outside of advisory limits
ENERGYLABORA TORIES INC P2393 Sail Creek Hbway 82601 P0 Sax 3258 Caspec WY82602
Ta//Free 888.235.0515 307235.0515 Far 307234.1639 caspeit.energy/ab.cam www energy/a/i cornEIERGY
LARORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04/06/09
Project 1st Quarter Chloroform Collection Date 03/04/09 1320
Lab ID C09030258-008 DateRecelved 03/06/09
Client Sample ID TW4-8 Matrix Aqueous
MCL/
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride 42 mg/L A4500-Cl 03/17/09 1610/sp
Nitrogen NitrateNitrite as ND mg/L 0.1 E353.2 03/16/09 1057 /jal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride ND ug/L 1.0 SW8260B 03/10/09 1503 wen
Chloroform ND ug/L 1.0 SW8260B 03/10/09 1503/wen
Chloromethane ND ug/L 1.0 SW8260B 03/10/09 1503/wen
Methylene chloride ND ug/L 1.0 SW8260B 03/10/09 1503 wen
Surr 12-Dichlorobenzene-d4 106 %REC 80-120 SW8260B 03/10/09 1503 /wen
Surr Dibromofluoromethane 94.0 %REC 70-130 SWB26OB 03/10/09 1503/wen
Surr p-Bromofluorobenzene 117 %REC 80-1 20 SW8260B 03/10/09 1503 /wen
Surr Toluene-d8 104 %REC 80-1 20 SW8260B 03/10/09 1503 wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERG YLASORA TORIES INC 2393 Sail CreekHiq/iway 82601 P0 Box 3258 Caspei WV82602
Toil Free 888.235 0515 307.235.0515 Fax [phone] casperenergy/ab.com www.energylab.comEIERGY
LASORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04/06/09
Project 1st Quarter Chloroform Collection Date 03/04/09 1257
Lab ID C09030258-009 DateReceived 03/06/09
Client Sample ID 1W4-9 Matrix Aqueous
MCU
Analyses Result UnIts Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride 30 mg/L A4500-Cl 03/17/09 1615 sp
Nitrogen NitrateNitrite as 2.5 mg/L 0.1 E353.2 03/16/09 1100 /ial
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachioride ND ug/L 1.0 SW8260B 03/10/09 1541 /wen
Chloroform ND ug/L 1.0 SW8260B 03/10/09 1541 /wen
Chloromethane ND ug/L 1.0 SW8260B 03/10/09 1541 /wen
Methylene chloride ND ug/L 1.0 SW8260B 03/10/09 1541 /wen
Surr 12-Dichlorobenzene-d4 108 %REC 80-120 SW8260B 03/10/09 1541 /wen
Surr Dibromofluoromethane 96.0 %REC 70-1 30 SW8260B 03/10/09 1541 /wen
Surr p-Bromofluorobenzene 117 %REC 80-120 8W8260B 03/10/09 1541 /wen
Surr Toluene-d8 105 %REC 80-120 SW82608 03/10/09 1541 /wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
EIERGY
LARORA TORIES
Client
Project
Lab ID
Client Sample ID
ENERG YLABORA TORIES INC 2393 Sail Creek HIghway 82601 P0 Box 3258 Caspe WY82602
Toil Free 888.235.0515 307235.0515 Fax [phone] casper4energy/ab.com wwwenergy/ab.comn
LABORATORY ANALYTICAL REPORT
Denison Mines USA Corp Report Date 04/03/09
1st Quarter Chloroform Collection Date 03/11/09 1000
C09030452-005 DateReceived 03/13109
TW 4-10 Matrix Aqueous
MCLI
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride 64 mg/L A4500-CI 03/24/09 1306 sp
Nitrogen NitrateNitrite as 11.6 mg/L 0.2 E353.2 03/18/09 1500 ial
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride ND ug/L 1.0 SW8260B 03/20/09 0214 /wen
Chloroform 1100 ug/L 200 SW8260B 03/20/09 1536 wen
Chloromethane ND ug/L 1.0 SW8260B 03/20/09 0214/wen
Methylene chloride ND ug/L 1.0 SW8260B 03/20/09 0214 wen
Surr 2-Dichlorobenzene-d4 112 %REC 80-120 SW8260B 03/20/09 0214 wen
Surr Dibromofluoromethane 120 %REC 70-130 SW8260B 03/20/09 0214 wen
Sum p-Bromofluorobenzene 124 %REC 80-120 SW8260B 03/20/09 0214/wen
Surr Toluene-d8 106 %REC 80-120 SW8260B 03/20/09 0214/wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
RL increased due to sample matrix interference Spike recovery outside of advisory limits
ENERGY
LAIIORA TORIES
ENERG YLABORA TORIES INC 2393 Salt Creek Hi/iway 82601 AC Box 3258 Caspe.c WY82602
roll Free 888.235.0515 307235.0515 Fax [phone] casperenergylab.com wwwenergy/ab.com
LABORATORY ANALYTICAL REPORT
Client
Project
Lab ID
Client Sample ID
Denison Mines USA Corp
1st Quarter Chloroform
C09030452-004
1W4-11
Report Date 04/03/09
Collection Date 03/11/09 1046
DateReceived 03/13/09
Matrix Aqueous
MCLJ
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride
Nitrogen NitrateNitrite as
49 mg/L
7.3 mg/L 0.2
A4500-Cl 03/24/09 1257 /sp
E353.2 03/18/09 1458/jal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chioromethane
Methylene chloride
Surr 2-Dichlorobenzene-d4
Surr Dibromofluoromethane
Surr p-Bromofluorobenzene
Surr Toluene-dB
ND ugJL
1000 ugJL
ND ug/L
ND ug/L
111 %REC
119 %REC
125 %REC
105 %REC
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
5W8260B
03/20/09 0135 /wen
03/20/09 1459 wen
03/20/09 0135 wen
03/20/09 0135 wen
03/20/09 0135 wen
03/20/09 0135 wen
03/20/09 0135 wen
03/20/09 0135 wen
MCL Maximum contaminant level
ND Not detected at the reporting limit
Spike recovery outside of advisory limits
1.0
100
1.0
1.0
80-1 20
70-130
80-120
80-1 20
Report RL Analyte reporting limit
Definitions QCL Quality control limit
RL increased due to sample matrix interference
EPERGY
LARORA TORIES
Client
Project
Lab ID
Client Sample ID
ENERGVLABORA TORIES INC P2393 Sail Creek HI/7way 82601 P0 Box 3258 Casper WV82602
Toil Free 888.235 0515 307235.0515 Fax [phone] casperenergy/ab.com wwwenergy/ab.coin
LABORATORY ANALYTICAL REPORT
Denison Mines USA Corp Report Date 04106/09
1st Quarter Chloroform Collection Date 03/04/09 1043
C09030258-002 DateReceived 03/06/09
TW4-1 Matrix Aqueous
MCL
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride 23 mgL A4500-Cl 03/1709 1602 sp
Nitrogen NitrateNitrite as 2.4 mgL 0.2 E353.2 0311609 1034jal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachioride ND ugL SW8260B 031 009 0314 wen
Chloroform ND ugL SW8260B 0311009 0314 /wen
Chioromethane ND ugL SW8260B 03/1009 0314/wen
Methylene chloride ND ugL SWB26OB 031009 0314 /wen
Surr 12-Dichlorobenzene-d4 109 %REC 80-120 SW8260B 031009 0314wen
Surr Dibromofluoromethane 98.0 %REC 70-130 5W8260B 031009 0314/wen
Surr p-Bromofluorobenzene 113 %REC 80-120 SW8260B 031009 0314 /wen
Surr Toluene-d8 105 %REC 80-1 20 5W8260B 03/1009 0314 wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
RL increased due to sample matrix interference
ENERGYLASORA TORIES INC 2393 Sail Creek Hir/way 82601 P0 Box 3258 Caspei WY82602
Tail Free 888.235.0515 307235.0515 Fax [phone] caspen4energy/ab.cam www.energylab.comEIERGY
LASOR.4 TORIES
LABORATORY ANALYTICAL REPORT
Client Denisn Mines USA Corp Report Date 04/06/09
Project 1st Quarter Chloroform Collection Date 03/04/09 1034
Lab ID C09030258-003 DateReceived 03/06/09
Client Sample ID TW4-1 Matrix Aqueous
MCLJ
Analyses Result Units Qualifiers RI QCL Method Analysis Date By
MAJOR IONS
Chloride 58 mg/I A4500-Cl 03/17/09 1603 sp
Nitrogen NitrateNitrite as 3.7 mg/I 0.2 E353.2 03/16/09 1037 /jal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride ND ug/L SW8260B 03/10/09 0352 wen
Chloroform ND ug/L SW8260B 03/10/09 0352 /wen
Chloromethane ND ug/L SW8260B 03/10/09 0352 wen
Methylene chloride ND ug/L SW8260B 03/10/09 0352 wen
Surr 2-Dichlorobenzene-d4 112 %REC 60-120 5W8260B 03/10/09 0352 wen
Surr Dibromofluoromethane 105 %REC 70-130 5W8260B 03/10/09 0352 wen
Surr p-Bromofluorobenzene 114 %REC 80-120 SW8260B 03/10/09 0352 wen
Surr Toluene-d8 106 %REC 80-120 SW8260B 03/10/09 0352 wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL QualiW control limit ND Not detected at the reporting limit
RL increased due to sample matrix interference
ENERGYLI4HORA TORIES INC 2393 Ball Creek Hi/iway 82601 pRO Box 3258-Caspec WY82602
roll Free 888.235.0515 307235.0515 Fax [phone] casperenergy/ab.corn www energy/ab corn
LAIIORA TORIES
Client Denison Mines USA Corp
Project
Lab ID
Client Sample ID 1W4-14
LABORATORY ANALYTICAL REPORT
Report Date 04/06/09
Collection Date 03/04/09 1022
DateReceived 03/06/09
Matrix Aqueous
MCLI
Analyses Result Units Qualifiers RL QCL Method AnalysIs Date By
MAJOR IONS
Chloride
Nitrogen NitrateNitrite as
35 mgIL
1.6 mgIL 0.1
A4500-CI 03117109 1605 Isp
E353.2 03116109 1039 Ijal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr 2-Dichlorobenzene-d4
Surr Dibromofluoromethane
Surr p-Bromofluorobenzene
Sum Toluene-d8
ND ug/L
ND ug/L
ND ug/L
ND ug/L
113 %REC
114 %REC
114 %REC
105 %REC
SWS26OB
SW6260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
SW8260B
03/10/09 0431 /wen
03/10/090431 /wen
03/10/090431 Iwen
03/10/090431 /wen
03/10/09 0431 Iwen
03/10/09 0431 /wen
03/10/09 0431 /wen
03/10/09 0431/wen
RL Analyte reporting limit
QCL Quality control limit
1st Quarter Chloroform
C09030258-004
80-120
70-1 30
80-1 20
80-1 20
Report
DefinItIons
MCL Maximum contaminant level
ND Not detected at the reporting limit
ENERGYLABORA TORIES INC 2393 Sail Creek Hii/i way 82601 P0 Box 3258 Caspe1 WY82602
____________To//Free 888.235 0515 307235 0515 Fax [phone] casperenergy/aLx corn www.energylab.corn
LARORA TORIES
LABORATORY ANALYTICAL REPORT
Client
Project
Lab ID
Client Sample ID
Denison Mines USA Corp
1st Quarter Chloroform
C09030258-01
1W4-15
Report Date 04/06/09
Collection Date 03/04/09 0901
DateReceived 03/06/09
Matrix Aqueous
Analyses Result Units Qualifiers RL
MCL
QCL Method Analysis Date By
MAJOR IONS
Chloride
Nitrogen NitrateNitrite as
49 mgIL
0.4 mg/L 0.1
A4500-Cl 03/17109 1823 sp
E353.2 03/16/09 1117 /jal
Report
Definitions
MCL Maximum contaminant level
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride ND ug/L 1.0 SW8260B 03/11/09 0354/wen
Chloroform 950 ug/L 200 SW8260B 03/10/09 1850/wen
Chloromethane ND ug/L 1.0 SW8260B 03/11/09 0354 wen
Methylene chloride 51 ugIL 1.0 SW8260B 03/11/09 0354 wen
Surr 12-Dichlorobenzene-d4 111 %REC 80-120 SW8260B 03/11/09 0354/wen
Surr Dibromofluoromethane 109 %REC 70-130 SW8260B 03/11/09 0354/wen
Surr p-Bromofluorobenzene 118 %REC 80-120 SW8260B 03/11/09 0354/wen
Surr Toluene-d8 105 %REC 80-120 SW8260B 03/11/09 0354/wen
RL Analyte reporting limit
QCL Quality control limit ND Not detected at the reporting limit
ENERGYLASORA TORIES INC 2393 Sail Creek Hiqbway 82601 R0 Box 3258 Casper WY82602
Toll Free 888.235.0515 307.235.0515 Fax [phone] casperenergy/ab.com wivenergy/ab.com
LARORi1 TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04106/09
Project 1st Quarter Chloroform Collection Date 03/04/09 1239
Lab ID C09030258-01 DateReceived 03/06/09
Client Sample ID 1W4-1 Matrix Aqueous
MCLJ
Analyses Result Units QualIfiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride 78 mg/L A4500-Cl 03/17/09 1619/sp
Nitrogen NitrateNitrite as 9.6 mg/L 0.2 E353.2 03/16/09 1154 /jal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachionde ND ugiL 1.0 SWS26OB 03/10/09 1651/wen
Chloroform ND ug/L 1.0 SW8260B 03/10/09 1657 /wen
Chloromethane ND ug/L 1.0 SW82608 03/10/09 1657/wen
Methylene chloride ND ug/L 1.0 SWB26OB 03/10/09 1657/wen
Surr 12-Dichlorobenzene-d4 108 %REC 80-120 SWS26OB 03/10/09 1657/wen
Surr Dibromofluoromethane 96.0 %REC 70-130 5W8260B 03/10/09 1657/wen
Surr p-Bromofluorobenzene 117 %REC 80-1 20 SW8260B 03/10/09 1657 wen
Surr Toluene-d8 104 %REC 80-120 SWS26OB 03/10/09 1657/wen
Report RL Analyte reporting limit MCL Maximum contaminant level
DefinItions QCL Quality control limit ND Not detected at the reporting limit
RL increased due to sample matrix interference
ENERO YLASORA TORIES INC 2393 Salt Creek Hii/iway 82601 P0 Box 3256 Casper WV82602JYThYFree 888.235.0515 307235.0515 Far 307234.1639 casperenergylab.corn wiw..energylaA corn
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04106109
Project 1st Quarter Chloroform Collection Date 03/04/09 0947
Lab ID C09030258-005 DateReceived 03/06/09
Client Sample ID TW4-1 Matrix Aqueous
MCL/
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride 30 mg/L A4500-Cl 03/17/09 1606/sp
Nitrogen NitrateNitrite as ND mg/L 0.1 E353.2 03/16/09 1050/jal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride ND ug/L SW82608 03/10/09 0510 wen
Chloroform ND ug/L SW82608 03/10/09 0510 wen
Chloromethane ND ug/L 3W8260B 03/10/09 0510/wen
Methylene chloride ND ug/L SW8260B 03/10/09 0510 wen
Surr 2-Dichlorobenzene-d4 112 %REC 80-120 SW8260B 03/10/09 0510 wen
Surr Dibromofluoromethane 110 %REC 70-130 SW8260B 03/10/09 0510/wen
Surr p-Bromofluorobenzene 114 %REC 80-120 SW8260B 03/10/09 0510 wen
Surr Toluene-d8 106 %REC 80-120 5W8260B 03/10/09 0510/wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERG VLASORA TORIES INC 2393 Sail Creek Hiqhway 82601 P0 Box 3258 Casper WV82602
____________Toll Free 888.235.0515 307235.0515 Far 307.234.1639 caspeitenergylab.com www energy/ab corn
LARORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04/06/09
Project 1st Quarter Chloroform Collection Date 03/04/09 1214
Lab ID C09030258-01 DateReceived 03/06/09
Client Sample ID 1W4-1 Matrix Aqueous
MCLI
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride 29 mgIL A4500-CI 03/17109 1621 Isp
Nitrogen NitrateNitrite as 5.2 mgIL 0.1 E353.2 03/16/09 1112 Ijal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachioride ND ug/L 1.0 SW8260B 03/10/09 1735 Iwen
Chloroform 11 ugIL 1.0 SW8260B 03/10/09 1735 Iwen
Chlorometharie ND ugIL 1.0 SW8260B 03/10109 1735 Iwen
Methylene chloride ND ugIL 1.0 SW8260B 03/10/09 1735 Iwen
Surr 12-Dichlorobenzene-d4 108 %REC 80-120 SW8260B 03/10/09 1735 Iwen
Surr Dibromofluorometflane 95.0 %REC 70-1 30 SW8260B 03/10/09 1735 Iwen
Surr p-Bromofluorobenzene 119 %REC 80-120 SW8260B 03/10/09 1735 wen
Surr Toluene-d8 103 %REC 80-1 20 SW82608 03/10/09 1735 Iwen
Report RL Analyte reporting limit MCL Maximum contaminant level
DefInItions QCL Quality control limit ND Not detected at the reporting limit
ENERO VLABORA TORIES INC 2393 Sail Creek Hibway 82501 P0 Box 3255-Caspec WY82602
____________Toil Free 888.235.0515 307235.0515 Fax [phone] caspei-energy/ab.com www energy/alz corn
LALORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04/06/09
Project 1st Quarter Chloroform Collection Date 03/04/09 0924
Lab ID C09030258-017 DateReceived 03/06/09
Client Sample ID TW4-1 Matrix Aqueous
MCLJ
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride 127 mgIL A4500-Cl 03/17/09 1627 Isp
Nitrogen NitrateNitrite as 3.2 mg/L 0.1 E353.2 03/16/09 1132 Ijal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride 1.2 ugIL 1.0 SW6260B 03/11/09 0556 wen
Chloroform 1100 ugIL 200 SW8260B 03/11/09 0236 wen
Chioromethane ND ug/L 1.0 SW8260B 03/11/090556 Iwen
Methylene chloride ND ug/L 1.0 SW8260B 03/11/09 0556 wen
Surr 2-Dichlorobenzene-d4 111 %REC 80-120 SW8260B 03/11/09 0556 wen
Surr Dibromofluoromethane 108 %REC 70-130 SW8260B 03/11/09 0556 wen
Surr p-Bromofluorobenzene 119 %REC 80-120 SWB26OB 03/11/09 0556 wen
Surr Toluene-d8 104 %REC 80-120 SW8260B 03/11/09 05561 wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
Hf/ERG VLABORA TORIES INC 2393 Sail Creek Hqhway 82601 P0 Sex 3258 Caspec WY82602
Toll Free 888.235.0515 307235.0515 Fax [phone] caspercQenergy/ab.com www.ei7ergylab.com
LARORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04/06/09
Project 1st Quarter Chloroform Collection Date 03/04/09 0855
Lab ID C09030258-018 DateReceived 03/06/09
Client Sample ID TW4-20 Matrix Aqueous
MCL/
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride 164 mg/L A4500-CI 03/17/09 1628 sp
Nitrogen NitrateNitrite as 5.1 mg/L 0.1 E353.2 03/16/09 1134 /jal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride 5.7 ug/L 1.0 SW8260B 03/11/09 0636 wen
Chloroform 8200 ug/L 2000 SW8260B 03/11/09 0315 wen
Chioromethane ND ug/L 1.0 SW8260B 03/11/09 0636 wen
Methylene chloride 5.2 ug/L 1.0 5W8260B 03/11/09 0636 wen
Surr 2-Dichlorobenzene-d4 109 %REC 80-120 SW8260B 03/11/09 0636 wen
Surr Dibromofiuoromethane 108 %REC 70-130 SW8260B 03/11/09 0636 wen
Sum p-Bromofiuorobenzene 119 %REC 80-1 20 SW8260B 03/11/090636 wen
Surr Toluene-dS 105 %REC 80-120 SW8260B 03/11/09 0636 wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERO YLABORA TORIES INC 2393 Sail Creek Hi/iway 82601 P0 Box 3258 Caspei WY82602
Toil Free 888.235.0515 307235 0515 Far 307234.1539 casperEenergy/aA corn www.energylab.comElERGY
LASORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04/03/09
Project 1st Quarter Chloroform Collection Date 03/11/09 0940
Lab ID C09030452-002 DateReceived 03/13/09
Client Sample ID TW 4-21 Matrix Aqueous
MCLI
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride 279 mg/L A4500-Cl 03124109 1252 /sp
Nitrogen NitrateNitrite as 8.3 mgIL 0.2 E353.2 03/18109 1453 Ijal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride ND ugIL 1.0 5W8260B 03120109 0020 wen
Chloroform 180 ugIL 20 SW8260B 03120109 13431 wen
Chloromethane ND ugIL 1.0 SW8260B 03/20/09 0020 wen
Methylene chloride ND ugIL 1.0 SW8260B 03/20109 0020 wen
Surr 2-Dichlorobenzene-d4 112 %REC 80-120 SW8260B 03/20/09 0020 wen
Sum Dibromofluoromethane 117 %REC 70-130 SW8260B 03/20/09 0020/wen
Surr p-Bromofluorobenzene 122 %REC 80-120 SW8260B 03/20/09 0020 wen
Surr Toluene-d8 104 %REC 80-120 5W8260B 03/20/09 0020 /wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
RL increased due to sample matrix interference Spike recovery outside of advisory limits
ENERGYLABORA TORIES INC 2393 Sail Creek H/iway 82601 Pa Box 3258 Caspei WY82602
roil Free 888.235.0515 307.235.0515 Far 307234.1639 casperenergylab.com www.energylab.comEIERGY
LABOR/i TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04/03/09
Project 1st Quarter Chloroform Collection Date 03/11/09 0950
Lab ID C09030452-003 DateReceived 03/13/09
Client Sample ID TW 4-22 Matrix Aqueous
MCL/
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride 177 mg/L A4500-Cl 03/24/09 1256 sp
Nitrogen NitrateNitrite as 20.7 mg/L 0.3 E353.2 03/18/09 1455 /jal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachioride ND ug/L 1.0 SW82606 03/20/09 0058 won
Chloroform 390 ug/L 100 SW8260B 03/20/09 1421 won
Chioromethane ND ug/L 1.0 SW8260B 03/20/09 0058 wen
Methylene chloride ND ug/L 1.0 SW8260B 03/20/09 0058 wen
Surr 2-Dichlorobenzene-d4 113 %REC 80-120 SW8260B 03/20/09 0058 wen
Surr Dibromofluoromethane 122 %REC 70-130 SW8260B 03/20/09 0058 won
Surr p-Bromofluorobenzene 123 %REC 80-120 SW8260B 03/20/09 0058/won
Surr Toluene-d8 106 %REC 80-120 5W82608 03/20/09 0058/wen
Report RL Analyto reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
RL increased due to sample matrix interference Spike recovery outside of advisory limits
ENERGVLABORA TORIES INC 2393 Sail Creek H/iway 82501 P0 Sax 3258 Casper WY82602
Ta/I Free 888.235.0515 3072350515 Far 307234.1539 casparOenergy/ab.ccm www.energyfab.com
LARORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04/06/09
Project 1st Quarter Chloroform Collection Date 03/04/09 1054
Lab ID C09030258006 DateReceived 03/06/09
Client Sample ID TW4-23 Matrix Aqueous
MCL
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride 41 mg/I A4500-Cl 03/17/09 1608 sp
Nitrogen NitrateNitrite as ND mg/I 0.1 E353.2 03/16/09 1052 /jal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachioride ND ug/L 5W8260B 0310/09 0550/wen
Chloroform ND ug/L SW8260B 03/10/09 0550 wen
Chloromethane ND ug/L SW8260B 0310/09 0550 wen
Methylene chloride ND ug/L SW6260B 03/10/09 0550 Iwen
Surr 12-Dichlorobenzene-d4 111 %REC 80-120 SW8260B 03/10/09 0550/wen
Surr Dibromofluoromethane 105 %REC 70-130 SW8260B 03/10/09 0550 /wen
Surr p-Bromofluorobenzene 112 %REC 80-120 SW8260B 03/10/09 0550 wen
Surr Toluene-d8 106 %REC 80-120 SW8260B 03/10/09 0550 wan
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERGYLASORA TORIES INC 2393 Salt Creek Highway 82601 P0 Box 3258 Caspec WY82602
____________Toll Free 888235.0515 307235.0515 Fax [phone] casperenergylab.com www.energylab.com
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04/06/09
Project 1st Quarter Chloroform Collection Date 03104/09 1228
Lab ID C09030258-01 DateReceived 03/06/09
Client Sample ID TW4-24 Matrix Aqueous
MCL/
Analyses Result units Qualifiers RL QCL Method AnalysIs Date By
MAJOR IONS
Chloride 1010 mgL A4500-CI 03/17/09 1618sp
Nitrogen NitrateNitrite as 30.5 mgL 0.3 E353.2 03/16/09 1152 jal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachioride ND ug/L 1.0 SW8260B 03/10/09 1618/wen
Chloroform 1.4 ug/L 1.0 5W8260B 03/10/09 1618 /wen
Chioromethane ND ug/L 1.0 SW82608 03/10/09 1618 wen
Methylene chloride ND ug/L 1.0 SW8260B 03/10/09 1618 /wen
Surr 12-Dichlorobenzene-d4 110 %REC 80-120 SW8260B 03/10/09 1618 /wen
Surr Dibromofluoromethane 98.0 %REC 70-1 30 SW8260B 03/10/09 1616 /wen
Surr p-Bromofluorobenzene 117 %REC 80-120 SW8260B 03/10/09 1618 wen
Surr Toluene-d8 104 %REC 80-120 SW82608 03/10/09 1618 /wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
RL increased due to sample matrix interference
ENERGVLABORA TORIES INC 2393 Sail CreekH/iway 82601 RU Box 3258 Caspe.c WY82602
____________Toil Free 888.235 0515 307235.0515 Fax [phone] caspercPenergy/ab.com wwwenergy/ab.com
LA//CPA TOP/ES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04/06/09
Project 1st Quarter Chloroform Collection Date 03/04/09 1201
Lab ID C09030258-007 DateReceived 03/06/09
Client Sample ID TW4-25 Matrix Aqueous
MCLJ
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride 332 mg/L A4500-Cl 03/17/09 1609 /sp
Nitrogen NitrateNitrite as 15.3 mg/L 0.2 E353.2 03/16/09 1055 /jal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride ND ug/L SW8260B 03/10/09 0630 /wen
Chloroform ND ug/L SW8260B 03/10/09 0630 /wen
Chloromethane ND ug/L SW8260B 03/10/09 0630 /wen
Methylene chloride ND ug/L SW8260B 03/10/09 0630 wen
Surr 2-Dichlorobenzene-d4 111 %REC 80-120 SW8260B 03/10/09 0630 wen
Surr Dibromofluoromethane 102 %REC 70-130 SW8260B 03/10/09 0630 wen
Surr p-Bromofluorobenzene 114 %REC 80-1 20 SW8260B 03/10/09 0630 wen
Sum Toluene-d8 106 %REC 80-120 SW8260B 03/10/09 0630 wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
RL increased due to sample matrix interference
ENERGVLASORA TORIES INC 2393 Sail Creek Hihway 82601 P0 Box 3258 Caspei WV82602
Toll Free 888.235.0515 307235 0515 Fax [phone] caspercenergylab.corn www energy/oh corn
LARORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04/06109
Project 1st Quarter Chloroform Collection Date 03/03/09 0738
Lab ID C09030258-019 DateReceived 03/06/09
Client Sample ID 1W4-60 Matrix Aqueous
MCL/
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride ND mg/L A4500-Cl 03/17/09 1635 Isp
Nitrogen NitrateNitrite as ND mg/L 0.1 E353.2 03/16/09 1137/jal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride ND ug/L 1.0 5W8260B 03/10109 2240 wen
Chloroform 33 ug/L 1.0 SW8260B 03/10/09 2240 wen
Chloromethane ND ug/L 1.0 SWB26OB 03/10/09 2240 wen
Methylene chloride ND ug/L 1.0 SW8260B 03/10/09 2240/wen
Surr 2-Dichlorobenzene-d4 110 %REC 80-120 SW8260B 03/10/09 2240 wen
Surr Dibromofluoromethane 104 %REC 70-130 SW8260B 03/10/09 2240/wen
Surr p-Bromofluorobenzene 115 %REC 80-120 SW8260B 03/10/09 2240 wen
Surr Toluene-d8 104 %REC 80-120 SW8260B 03/10/09 2240 Iwen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
....h ..fl....1uV.ul
ENERGYLABORA TORIES INC 2393 Salt Creek H@hway 82601 P0 Box 3258-Caspe1c WV82602
____________Toll Free 888.235.0515 307235.0515 Far 307234.1839 casper6energy/ab.com wwwenergy/ab.coni
LARORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04/03/09
Project 1st Quarter Chloroform Collection Date 03/10/09 0725
Lab ID C09030452-012 DateReceived 03/13/09
Client Sample ID TW 4-62 Matrix Aqueous
MCL
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride ND mgL A4500-Cl 032409 1314 sp
Nitrogen NitrateNitrite as ND mgL 0.1 E353.2 03/1809 1523 /jal
VOLA11LE ORGANIC COMPOUNDS
Carbon tetrachloride ND ugL 1.0 SW8260B 03120/09 2233/wen
Chloroform 34 ugL 1.0 5W8260B 03/20/09 2233 wen
Chloromethane ND ugL 1.0 SW8260B 03/20/09 2233 wen
Methylene chloride ND ugL 1.0 SW8260B 03/20/09 2233 wen
Surr 2-Dichlorobenzene-d4 112 %REC 80-120 5W8260B 03/20/09 2233 wen
Surr Dibromofluoromethane 119 %REC 70-130 SW8260B 03/20109 2233 wen
Surr p-Bromofluorobenzene 128 %REC 80-120 SW8260B 03/20/09 2233 wen
Surr Toluene-d8 105 %REC 80-120 SW8260B 03/20/09 2233 wen
Report RL Analyte reporting limit MCL Maximum contaminant level
DefinitIons QCL Quality control limit ND Not detected at the reporting limit
Spike recovery outside of advisory limits
ENERG VLABOR.4TORIES INc 2393 Sail Creek Highway 82601 RU Box 3258 Caspe1c WY82602
Toll Free 888.235.0515 307235.0515 Fax [phone] casperenergy/a/zcom wwwenergy/ab.coni
LASORA rornEs
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04/06/09
Project 1st Quarter Chloroform Collection Date 03/03/09 0800
Lab ID C09030258-020 DateReceived 03/06/09
Client Sample ID TW4-63 Matrix Aqueous
MCLI
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride mg/L A4500-CI 03/17/09 1537 Isp
Nitrogen NitrateNitrite as ND mg/L 0.1 E353.2 03/16/09 1147 Ijal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachioride ND ug/L 1.0 5W8260B 03110/09 2320 /wen
Chloroform 10 ug/L 1.0 SW8260B 03/10109 2320 /wen
Chloromethane ND ug/L 1.0 SW8260B 03/10/09 2320 wen
Methylene chloride ND ug/L 1.0 5W8260B 03/10/09 2320 wen
Surr 2-Dichlorobenzene-d4 112 %REC 80-120 SW8260B 03/10/09 2320 wen
Surr Dibromofluoromethane 104 %REC 70-130 5W8260B 03/10/09 2320 wen
Surr p-Bromofluorobenzene 114 %REC 80-120 SW8260B 03/10/09 2320 wen
Surr Toluene-d8 105 %REC 80-120 SWS26OB 03/10/09 2320 wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERGYLASORA TORIES INC 2393 Sail Creek Hihway 82501 P0 Box 3258 Caspei WY82502
____________Toil Free 888.235 0515 307235.0515 Fa 307234.1539 casperenergy/ab.com wwwenergy/ab.com
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denisbn Mines USA Corp Report Date 04/06/09
Project 1st Quarter Chloroform Collection Date 03/04/09 0947
Lab ID C09030258-021 DateReceived 03/06/09
Client Sample ID TW4-65 Matrix Aqueous
MCL/
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride 31 mg/L A4500-Cl 03/17/09 1638/sp
Nitrogen NitrateNitrite as ND mg/L 0.1 E353.2 03/16/09 1150 Ijal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride ND ug/L 1.0 SW8260B 03/10/09 2359 Iwen
Chloroform ND ug/L 1.0 SW8260B 03/10/09 2359/wen
Chloromethane ND ug/L 1.0 SW82608 03/10/09 2359/wen
Methylene chloride ND ug/L 1.0 SW8260B 03/10/09 2359 /wen
Surr 2-Dichlorobenzene-d4 111 %REC 80-120 SW8260B 03/10/09 2359 wen
Sun Dibromofluoromethane 104 %REC 70-130 SW8260B 03/10/09 2359/wen
Surr p-Bromofluorobenzene 118 %REC 80-120 SW82608 03/10/09 2359 wen
Surr Toluene-d8 104 %REC 80-120 SW8260B 03/10/09 2359 wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
ENERG VLASORA TORIES INC -2393 Salt Creek Hliway 82601 AO Box 3258 Caspei WY82602
____________Toll Free 888.235.0515 307.235.0515 Fax [phone] caspaitenergylab.com wwwenergylab.com
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04103109
Project 1st Quarter Chloroform Collection Date 03/11109 1040
Lab ID C09030452-01 DateReceived 03113109
Client Sample ID 1W 4-70 Matrix Aqueous
MCL
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride 44 mgL A4500-Cl 03124/09 1311 sp
Nitrogen NitrateNitrite as 7.0 mg/L 0.2 E353.2 0326/09 1303/jal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride 2.1 ugL 1.0 SW8260B 032009 0524 wen
Chloroform 3100 ugL 200 SW8260B 03120109 1808 wen
Chioromethane ND ugL 1.0 SW8260B 0320/09 0524 wen
Methylene chloride NO ugL 1.0 SW8260B 03/20109 0524 wen
Surr 12-Dichlorobenzene-d4 113 %REC 80-120 SW8260B 03/20/09 0524 Iwen
Sum Dibromofluoromethane 119 %REC 70-130 SW82608 03120109 0524 wen
Surr p-Bromofluorobenzene 126 %REC 80-120 SW8260B 03/20/09 0524 wen
Surr Toluene-d8 105 %REC 80-120 SWB26OB 03120/09 0524wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
RL increased due to sample matrix interference Spike recovery outside of advisory limits
ENERGVLABORA TORIES INC 2393 Sail Creek Hi/iway 82601 PO Box 3258 Caspel WY82602
Toil Free 888.235.0515 307235.0515 Fax [phone] caspenenergy/ab.corn wwwenergy/ab corn
EIERGY
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04/03/09
Project 1St Quarter Chloroform Collection Date 03/10/09 0800
Lab ID C09030452-01 DateReceived 03/13/09
Client Sample ID 1W4-73 Matrix Aqueous
MCLJ
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
MAJOR IONS
Chloride ND mg/L A4500-Cl 03/24/09 1313 sp
Nitrogen NitrateNitrite as ND mg/L 0.1 E353.2 03118/09 1520 /jal
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride ND ugIL 1.0 SW8250B 03/20/09 2155 wen
Chloroform 19 ug/L 1.0 SW8260B 03/20/09 2155/wen
Chloromethane ND ug/L 1.0 SW82608 03/20/09 2155 wen
Methylene chloride ND ug/L 1.0 SW82606 03/20/09 2155 wen
Surr 12-Dichlorobenzene-d4 110 %REC 80-120 SW8260B 03/20/09 2155 Iwen
Surr Dibromofluoromethane 118 %REC 70-130 SW8260B 03/20/09 2155 wen
Sum p-Bromofluorobenzene 126 %REC 80-120 SW8260B 03/20/09 2155 wen
Surr Toluene-d8 105 %REC 80-120 SW8260B 03/20/09 2155 wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
Spike recovery outside of advisory limits
ENERGVLABORA TORIES INC 2393 Sail Creek Hihway 82601 P0 Box 3258 Caspei WV82602
Toll Free 888.235.0515 307.235.0515 Far 307234.1639 casperc4energy/ab.com www.energylab.com
LABORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04/03/09
Project 1st Quarter Chloroform Collection Date 03/11/09 1046
Lab ID C09030452-009 DateRecelved 03/13/09
Client Sample ID Trip Blank Matrix Aqueous
MCLJ
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachioride ND ug/L 1.0 SW8260B 03/20/09 0446 wen
Chloroform ND ugIL 1.0 5W8260B 03/20/09 0446 wen
Chloromethane ND ug/L 1.0 5W8260B 03/20/09 0446 wen
Methylene chloride ND ug/L 1.0 SW8260B 03/20/09 0446 wen
Sum 2-Dichlorobenzene-d4 114 %REC 30-1 20 SW8260B 03/20/09 0446 wen
Sum Dibromofluoromethane 125 %REC 70-130 SW8260B 03/20/09 0446 wen
Surr p-Bromofluorobenzene 126 %REC 80-120 SW8260B 03/20/09 0446 wen
Surr Toluene-d8 106 %REC 80-120 5W8260B 03/20/09 0446 wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
Spike recovery outside of advisory limits
ENEROYLABORA TORIES INC 2393 Sail CreekHi/i way 82601 P0 Box 3258 Caspe WY 82602
____________Toil Free 888.235.0515 307235.0515 Fax [phone] casperenergy/ab.com www.energylab.com
LASORA TORIES
LABORATORY ANALYTICAL REPORT
Client Denison Mines USA Corp Report Date 04/06/09
Project 1st Quarter Chloroform Collection Date 03/04/09 1329
Lab ID C09030258-022 DateReceived 03/06/09
Client Sample ID Trip Blank Matrix Aqueous
MCLI
Analyses Result Units Qualifiers RL QCL Method Analysis Date By
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride ND ug/L 1.0 SW8260B 03/11/09 0039/wen
Chloroform ND ug/L 1.0 SW8260B 03111/09 0039 wen
Chloromethane ND ug/L 1.0 SW8260B 03111/09 0039 wen
Methylene chloride ND ugIL 1.0 SW8260B 03/11/09 0039 wen
Surr 2-Dichlorobenzene-d4 110 %REC 80-120 SW8260B 03111109 0039/wen
Surr Dibromofluoromethane 106 %REC 70-130 SW8260B 03/11/09 0039 wen
Surr p-Bromofluorobenzene 117 %REC 80-120 SW8260B 03/11/09 0039/wen
Surr Toluene-d8 104 %REC 80-120 SW8260B 03/11/09 0039/wen
Report RL Analyte reporting limit MCL Maximum contaminant level
Definitions QCL Quality control limit ND Not detected at the reporting limit
EIERGY
LABORA TORIES
ENERG YLABORA TORIES INC 2393 Sail Creek Hihway 82501 PU Box 3258 Caspe1 WY82602
roll Free 8882350515 307235.0515 Fax [phone] casperenergy/ab.com wwwenergy/ab.com
ANALYTICAL SUMMARY REPORT
Quote ID C2975 Chloroform Sampling
April 03 2009
Denison Mines USA Corp
6425 Hwy 191
Blanding UT 84511
Workorder No C09030452
Project Name 1st Quarter Chloroform
Energy Laboratories Inc received the following 12 samples for Denison Mines USA Corp on 3/13/2009 for analysis
Sample ID Client Sample ID Collect Date Receive Date Matrix Test
C09030452-001 1W 4-6 03/11/09 1009 03/13/09 Aqueous Chloride
Nitrogen Nitrate Nitrite
SW8260B VOCs Standard List
C09030452-002 1W 4-21 03/11/09 0940 03/13/09 Aqueous Same As Above
C09030452-003 1W 4-22 03/11/09 0950 03/13/09 Aqueous Same As Above
C09030452-004 1W 4-11 03/11/09 1046 03/13/09 Aqueous Same As Above
C09030452-005 1W4-10 03/11/09 1000 03/13/09 Aqueous Same As Above
C09030452-006 1W 4-1 03/11/09 1018 03/13/09 Aqueous Same As Above
C09030452-007 1W 4-7 03/11/09 1025 03/13/09 Aqueous Same As Above
C09030452-008 1W 4-2 03/11/09 1040 03/13/09 Aqueous Same As Above
C09030452-009 Trip Blank 03/11/09 1046 03/13/09 Aqueous SW8260B VOCs Standard List
C09030452-010 1W 4-70 03/11/09 1040 03/13/09 Aqueous Chloride
Nitrogen Nitrate Nitrite
SW8260B VOCs Standard List
C09030452-01 1W 4-73 03/10/09 0800 03/13/09 Aqueous Same As Above
C09030452-01 1W 4-62 03/10/09 0725 03/13/09 Aqueous Same As Above
As appropriate any exceptions or problems with the analyses are noted in the Laboratory Analytical Report the
QAIQC Summary Report or the Case Narrative
If you have any questions regarding these tests results please call
Report Approved By 3bQY\kU13 UiJL
Qualifiers
RI Analyte reporting limit
Spike recovery outside of advisory limits
EIERGY
LAB ORA ron/ES
ENERGY LABORA TORIES INC 2393 Sail Creek Hbway 82601 P0 Box 3258 Caspei WY 82602
Toil Free 888.235.0515 307235.0515 Fax [phone] casperc4energylab.coin wv.energyIab.com
QA/QC Summary Report
Client Denison Mines USA Corp Report Date 04/03/09
Project 1St Quarter Chloroform Work Order C09030452
Analyte Result Units RI %REC Low Limit High Limit RPD RPDLimit Qual
Method A4500-Cl Batch 090324A-CL-TTR-W
Sample ID MBLK9-090324A Method Blank Run TITRATION_090324A 03/24/09 1055
Chloride ND mg/I 0.4
Sample ID C09030452-OO4AMS Sample Matrix Spike Run TITRATION_090324A 03/24/09 1258
Chloride 228 mg/I 1.0 101 90 110
Sample ID C09030452-OO4AMSD Sample Matrix Spike Duplicate Run TITRATION_090324A 03124/09 1259
Chloride 228 mg/L 1.0 101 90 110 10
Sample ID LCS3S-090324A Laboratory Control Sample Run TITRATION_090324A 03124109 1302
Chloride 3570 mg/L 1.0 101 90 110
Method E353.2 Batch Ri 16039
Sample ID LCS-2 Laboratory Control Sample Run TECHNICON_090318A 03/i 8/09 1208
Nitrogen NitrateNitrite as 2.47 mg/I 0.10 99 90 110
Sample ID MBLK-1 Method Blank Run TECHNICON_090318A 03/18/09 1214
Nitrogen NitrateNitrite as ND mg/I 0.03
Sample ID C09030364-OOIBMS Sample Matrix Spike Run TECHNICON_090318A 03/18109 1425
Nitrogen NitrateNitrite as 2.26 mg/L 0.10 106 90 110
Sample ID C09030364-OOIBMSD Sample Matrix Spike Duplicate Run TECHNICON_090318A 03/1 8109 1428
Nitrogen NitrateNitrite as 2.24 mg/L 0.10 105 90 110 0.9 10
Sample ID C09030452-OO7BMS Sample Matrix Spike Run TECHNICON_090318A 03/18/09 1505
Nitrogen NitrateNitrite as 5.68 mg/L 0.10 98 90 110
Sample ID C09030452-OO7BMSD Sample Matrix Spike Duplicate Run TECHNICON_090318A 03/18/09 1508
Nitrogen NitrateNitrite as 6.12 mg/L 0.10 120 90 110 7.5 10
Method E353.2 Batch Ri 16304
Sample ID MBLK-1 Method Blank Run TECHNICON_090326A 03/26/09 1253
Nitrogen NitrateNitrite as ND mg/I 0.03
Sample ID ICS-2 laboratory Control Sample Run TECHNICONO9O326A 03/26/09 1255
Nitrogen NitrateNitrite as 2.43 mg/I 0.10 97 90 110
Sample ID C09030572-OOIDMS Sample Matrix Spike Run TECHNICON_090326A 03/26/09 1313
Nitrogen NitrateNitrite as 2.23 mg/I 0.10 98 90 110
Sample ID C09030572-OOIDMSD Sample Matrix Spike Duplicate Run TECIINICON_090326A 03/26/09 1315
Nitrogen NitrateNitrite as 2.20 mg/I 0.10 97 90 110 1.4 10
ND Not detected at the reporting limit
ENERGYLA flORA TORIES INC 2393 Sail Creek Hiibway 82601 P0 Box 3258 Caspei WV82602
Toll Free 888.2350515 3072350515 Fax [phone] casperenergyIab.com www energylab corn
LASORA TORIES
QAIQC SUmmaReb1t
Client Denison Mines USA Corp Report Date 04/03/09
Project 1st Quarter Chloroform Work Order C09030452
Analyte Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method 5W8260B Batch R116157
Sample ID 19-Mar-09_LCS_3
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Sum 2-Dichlorobenzene-d4
Surr Dibromofluoromethane
Surr p-Bromofluorobenzene
Surr Toluene-d8
Laboratory Control Sample
13 ug/L
12 ug/L
12 ug/L
12 ug/L
Run GCMS2_09031 9A
1.0 126 70 130
1.0 122 70 130
1.0 122 70 130
1.0 123 70 130
1.0 109 80 120
1.0 114 70 130
1.0 108 80 130
1.0 108 80 120
Sample ID 19-Mar-09_MBLK_6
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr 2-Dichlorobenzene-d4
Surr Dibromofluoromethane
Surr p-Bromofluorobenzene
Surr Toluene-d8
Sum 2-Dichlorobenzene-d4
Surr Dibromofluoromethane
Sum p-Bromofluorobenzene
Surr Toluene-d8
Method Blank
ND
ND
ND
ND
Sample ID 20-Mar-09_LCS_3
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr 2-Dichlorobenzene-d4
Surr Dibromofluoromethane
Surr p-Bromofluorobenzene
Surr Toluene-d8
Qualifiers
RL Analyte reporting limit
Spike recovery outside of advisory limits
Laboratory Control Sample
11 ugIL
11 ug/L
12 ug/L
11 ug/L
Run GCMS2_090319A
1.0 111 70 130
1.0 112 70 130
1.0 116 70 130
1.0 112 70 130
1.0 108 80 120
1.0 117 70 130
1.0 110 80 130
1.0 108 80 120
ND Not detected at the reporting limit
03/20/09 1112
03/19/09 1143
ug/L
ug/L
ug/L
ug/L
Run GCMS2_090319A 03/19/09 1336
1.0
1.0
1.0
1.0
1.0 110 80 120
1.0 110 70 130
1.0 125 80 120
1.0 104 80 120
Sample ID C09030452-OIOCMS
Carbon tetrachioride
Chloroform
Surr 2-Dichlorobenzene-d4
Surr Dibromofluoromethane
Surr p-Bromofluorobenzene
Surr Toluene-d8
Sample ID C09030452-O1OCMSD
Carbon tetrachloride
Chloroform
Sample Matrix Spike
250 ug/L
2600 ug/L
Sample Matrix Spike Duplicate
260 ug/L
3100 ug/L
20 127
20 -108
20 112
20 123
20 120
20 106
20 129
20 136
20 110
20 120
20 119
20 106
Run GCMS2_09031 9A 03/20/09 0640
70 130
70 130
80 120
70 130
80 120
80 120
Run GCMS2_09031 9A
70 130
70 130
03/20/09 0718
1.9 20
17 20
80 120 10
70 130 10
80 120 10
80 120 10
__
EPERGY
L.ABORA TORIES
ENERO VLASORA TORIES INC 2393 Sail CreekH/i way 82601 P0 Box 3258 Caspec WY82602
Toll Free 888235.0515 307235.0515 Fax [phone] caspenllenergy/ab.com wwwenergy/ab.com
QAIQC Summary Report
Report Date 04/03/09
Work Order 009030452
Client Denison Mines USA Corp
Project 1st Quarter Chloroform
Analyte Result Units RL %REC Low Limit High Limit RPD RPDLimit QuaI
Method SW8260B Batch R116157
Sample ID 20-Mar-09_LCS_3 Laboratory Control Sample Run GCMS2_090319A 03/20/09 1112
Sample ID 20-Mar-09_MBLKJ Method Blank Run GCMS2_090319A 03/20/09 1305
Carbon tetrachloride ND ug/L 1.0
Chloroform ND ug/L 1.0
Chloromethane ND ug/L 1.0
Methylene chloride ND ug/L 1.0
Surr 12-Dichlorobenzene-d4 1.0 108 80 120
Surr Dibromofluoromethane 1.0 111 70 130
Surr p-Bromofluorobenzene 1.0 126 80 120
Surr Toluene-d8 1.0 105 60 120
Sample ID C09030452-OO2CMS Sample Matrix Spike Run GCMS2_090319A 03/20/09 1845
Carbon tetrachloride 250 ug/L 20 125 70 130
Chloroform 440 ug/L 20 134 70 130
Surr 2-Dichlorobenzene-d4 20 111 80 120
Surr Dibromofluoromethane 20 116 70 130
Surr p-Bromofluorobenzene 20 123 80 120
Surr Toluene-d8 20 105 80 120
Sample ID C09030452-OO2CMSD Sample Matrix Spike Duplicate Run GCMS2_090319A 03/20/09 1924
Carbon tetrachloride 250 ug/L 20 127 70 130 1.9 20
Chloroform 440 ug/L 20 131 70 130 1.3 20
Surr 2-Dichlorobenzene-d4 20 110 80 120 10
Surr Dibromofluoromethane 20 114 70 130 10
Surr p-Bromofluorobenzene 20 122 80 120 10
Surr Toluene-d8 20 106 80 120 10
Qualifiers
RL Analyte reporting limit ND Not detected at the reporting limit
Spike recovery outside of advisory limits
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..
Energy Laboratories Inc
VVorkorder Receipt Checklist
Denison Mines USA Corp C09030452
Login completed by Edith McPike Date and Time Received 3/13/2009 930 AM
Reviewed by Received by pb
Reviewed Date Carrier name Next Day Air
Shipping container/cooler in good condition Yes No Not Present
custody seals intact on shipping container/cooler Yes No fl Not Present
custody seats intact on sample bottles Yes No Not Present
chain of custody present Yes No
chain of custody signed when relinquished and received Yes No
chain of custody agrees with sample labels Yes No
Samples in proper container/bottle Yes No
Sample containers intact Yes No
Sufficient sample volume for indicated test Yes tEl No
All samples received within holding time Yes No
container/Temp Blank temperature 2c On Ice
Water VOA vials have zero headspace Yes No No VOA vials submitted
Water pH acceptable upon receipt Yes No Not Applicable
contact and corrective Action comments
None
..L ..... .................J
ENERGYLASORA TORIES INC 2393 Salt Creek Hi/iway 82601 P0 Box 3258 Casper WY82602
_____________Toll Free 888.2350515 307235 0515 Far 307234.1639 casperenergylab.com www.energylab.com
LABORA TORIES
CLIENT Denison Mines USA Corp Date 03-Apr-09
Project 1st Quarter Chloroform CASE NARRATIVE
Sample Delivery Group C09030452
ORIGINAL SAMPLE SUBMITTALS
All original sample submittals have been returned with the data package
SAMPLE TEMPERATURE COMPLIANCE 4C 2C
Temperature of samples received may not be considered properly preserved by accepted standards Samples that are hand
delivered immediately after collection shall be considered acceptable if there is evidence that the chilling process has begun
GROSS ALPHA ANALYSIS
Method 900.0 for gross alpha and gross beta is intended as drinking water method for low TDS waters Data provided by
this method for non potable waters should be viewed as inconsistent
RADON IN AIR ANALYSIS
The desired exposure time is 48 hours days The time delay in returning the canister to the laboratory for processing
should be as short as possible to avoid excessive decay Maximum recommended delay between end of exposure to
beginning of counting should not exceed days
SOIUSOLID SAMPLES
All samples reported on an as received basis unless otherwise indicated
ATRAZINE SIMAZINE AND PCB ANALYSIS USING EPA 505
Data for Atrazine and Simazine are reported from EPA 525.2 not from EPA 505 Data reported by ELI using EPA method
505 reflects the results for seven individual Aroclors When the results for all seven are ND not detected the sample
meets EPA compliance criteria for PCB monitoring
SUBCONTRACTING ANALYSIS
Subcontracting of sample analyses to an outside laboratory may be required If so ENERGY LABORATORIES will utilize its
branch laboratories or qualified contract laboratories for this service Any such laboratories will be indicated within the
Laboratory Analytical Report
BRANCH LABORATORY LOCATIONS
eli-b Energy Laboratories Inc Billings MT
eli-g Energy Laboratories Inc Gillette WY
eli-h Energy Laboratories Inc Helena MT
eli-r Energy Laboratories Inc Rapid City SD
eli-t Energy Laboratories Inc College Station TX
CERTIFICATIONS
USEPA WY00002 FL-DOH NELAC E87641 California 0211 8CA
Oregon WY200001 Utah 3072350515 Virginia 00057 Washington C1903
ISO 17025 DISCLAIMER
The results of this Analytical Report relate only to the items submitted for analysis
ENERGY LABORATORIES INC CASPERWY certifies that certain method selections contained in this report meet
requirements as set forth by the above accrediting authorities Some results requested by the client may not be covered
under these certifications All analysis data to be submitted for regulatory enforcement should be certified in the sample
state of origin Please verify ELIs certification coverage by visiting www.energylab.com
ELI appreciates the opportunity to provide you with this analytical service For additional information and services visit our
web page www.energyIab.com
THIS IS THE FINAL PAGE OF THE LABORATORY ANALYTICAL REPORT
ENERGVLASORATOR/ES INC 2393 Sail Creek H/iway 82601 PC Box 3258 Caspe.c WV82602
roll Free 888.235 0515 307235.0515 Fax [phone] casperC4energy/ab corn wwwenergylab corn
EIERGY
LABORA TORIES
ANALYTICAL SUMMARY REPORT
April 06 2009
Denison Mines USA Corp
6425 Hwy 191
Blanding UT 84511
Workorder No C09030258 Quote ID C2975 Chloroform Sampling
Project Name 1st Quarter Chloroform
Energy Laboratories Inc received the following 22 samples for Denison Mines USA Corp on 3/6/2009 for analysis
Test
Chloride
Nitrogen Nitrate Nitrite
5W8260B VOCs Standard List
Same As Above
Same As Above
Same As Above
Same As Above
Same As Above
Same As Above
Same As Above
Same As Above
Same As Above
Same As Above
Same As Above
Same As Above
Same As Above
Same As Above
Same As Above
Same As Above
Same As Above
Same As Above
Same As Above
Same As Above
SW8260B VOCs Standard List
Sample ID Client Sample ID Collect Date Receive Date Matrix
C09030258-001 TW4-3 03/04/09 1310 03/06/09 Aqueous
C09030258-002 1W4-1 03/04/09 1043 03/06/09 Aqueous
C09030258-003 TW4-1 03/04/09 1034 03/06/09 Aqueous
C09030258-004 TW4-14 03/04/09 1022 03/06/09 Aqueous
C09030258-005 TW4-1 03/04/09 0947 03/06/09 Aqueous
C09030258-006 TW4-23 03/04/09 1054 03/06/09 Aqueous
C09030258-007 TW4-25 03/04/09 1201 03/06/09 Aqueous
C09030258-008 1W4-8 03/04/09 1320 03/06/09 Aqueous
C09030258-009 TW4-9 03/04/09 1257 03/06/09 Aqueous
C09030258-010 TW4-24 03/04/09 1228 03/06/09 Aqueous
C09030258-01 TW4-1 03/04/09 1239 03/06/09 Aqueous
C09030258-012 TW4-18 03/04/09 1214 03/06/09 Aqueous
C09030258-01 TW4-5 03/04/09 1250 03/06/09 Aqueous
C09030258-014 TW4-15 03/04/09 0901 03/06/09 Aqueous
C09030258-01 MW-4 03/04/09 0907 03/06/09 Aqueous
C09030258-01 TW4-4 03/04/09 1329 03/06/09 Aqueous
C09030258-017 TW4-19 03/04/09 0924 03/06/09 Aqueous
C09030258-01 TW4-20 03/04/09 0855 03/06/09 Aqueous
C09030258-019 TW4-60 03/03/09 0738 03/06/09 Aqueous
C09030258-020 TW4-63 03/03/09 0800 03/06/09 Aqueous
C09030258-021 TW4-65 03/04/09 0947 03/06/09 Aqueous
C09030258-022 Trip Blank 03/04/09 1329 03/06/09 Aqueous
As appropriate any exceptions or problems with the analyses are noted in the Laboratory Analytical Report the
QA/QC Summary Report or the Case Narrative
If you have any questions regarding these tests results please call
Report Approved By UJdef
Qualifiers
RL Analyte reporting limit
LAI3ORA TORIES
ENERG YLASORA TORIES INC 2393 Sail CreekHi/i way 82601 P0 Box 3258 Caspei WY82602
Toll Free 888.2350515 3072350515 Far 307234.1639 casperenergyIab.com www.energylab.com
QA/OC Summary Report
Client Denison Mines USA Corp Report Date 04106/09
Project 1st Quarter Chloroform Work Order C09030258
Analyte Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method A4500-CI Batch 090317A-CL-TTR-W
Sample ID MBLK9-090317A Method Blank Run TITRATION_090317A 03/17/09 0937
Chloride ND mg/L 0.4
Sample ID LCS35-090317A Laboratory Control Sample Run TITRATION_090317A 03/17/09 1105
Chloride 3570 mg/L 1.0 101 90 110
Sample ID C09030220-OO6AMS Sample Matrix Spike Run TITRATION_090317A 03/17/09 1516
Chloride 37.4 mg/L 1.0 102 90 110
Sample ID C09030220-OO6AMSD Sample Matrix Spike Duplicate Run TITRATION_090317A 03/17/09 1517
Chloride 37.4 mg/L 1.0 102 90 110 10
Method E353.2 Batch Ri 15905
Sample ID MBLK-1 Method Blank Run TECHNICON_090316A 03/16/09 1025
Nitrogen NitrateNitrite as ND mg/L 0.03
Sample ID LCS-2 Laboratory Control Sample Run TECI-INICON_090316A 03/16/09 1027
Nitrogen NitrateNitrite as 2.43 mg/L 0.10 97 90 110
Sample ID C09030258-OO4BMS Sample Matrix Spike Run TECHNICON_090316A 03/16/09 1042
Nitrogen NitrateNitrite as 3.57 mg/L 0.10 101 90 110
Sample ID C09030258-OO4BMSD Sample Matrix Spike Duplicate Run TECHNICON_090316A 03/16/09 1044
Nitrogen NitrateNitrite as 3.71 mg/L 0.10 108 90 110 3.8 10
ND Not detected at the reporting limit
ENERGYLASORA TORIES INC P2393 Sail Creek /-/.fq/iway 82501 RO Box 3258 Caspei WV82602
roll Free 888.2350515 3072350515 Fax [phone] caspeitenergy/ab.com www.energylab.comEIERGY
LALIORA TORIES
UA/UC Summary Report
Client Denison Mines USA Corp Report Date 04/06/09
Project 1st Quarter Chloroform Work Order C09030258
Analyte Result Units RL %REC Low Limit High Limit RPO RPDLimit Qual
Method SW8260B Batch Ri 15843
Sample ID 1O-Mar-09_LCS_4 Laboratory Control Sample Run GCMS2_090310B 03/10/09 1232
Carbon tetrachloride ii ug/L 1.0 113 70 130
Chloroform 11 ug/L 1.0 108 70 130
Chloromethane 9.9 ug/L 1.0 99 70 130
Methylenechloride 11 ug/L 1.0 110 70 130
Surr 12-Dichlorobenzene-d4 1.0 106 80 120
Surr Dibromofluoromethane 1.0 94 70 130
Surr p-Bromofluorobenzene 1.0 106 80 130
Surr Toluene-d8 1.0 106 80 120
Sample ID 10-Mar-09_MBLK_7 Method Blank Run GCMS2_090310B 03/10/09 1348
Carbon tetrachloride ND ug/L 1.0
Chloroform ND ug/L 1.0
Chloromethane ND ug/L 1.0
Methylene chloride ND ug/L 1.0
Surr 12-Dichlorobenzene-d4 1.0 107 80 120
Surr Dibromofluoromethane 1.0 96 70 130
Surr p-Bromofluorobenzene 1.0 115 80 120
Surr Toluene-d8 1.0 104 80 120
Sample ID C09030258-OI4CMS Sample Matrix Spike Run GCMS2_090310B 03/10/09 1928
Carbon tetrachloride 2400 ug/L 200 118 70 130
Chloroform 3300 ug/L 200 117 70 130
Surr 12-Dichlorobenzene-d4 200 106 80 120
Surr Dibromofluoromethane 200 96 70 130
Surr p-Bromofluorobenzene 200 113 80 120
Surr Toluene-d8 200 106 80 120
Sample ID C09030258-O14CMSD Sample Matrix Spike Duplicate Run GCMS2_090310B 03/10/09 2007
Carbon tetrachloride 2300 ug/L 200 116 70 130 1.4 20
Chloroform 3200 ug/L 200 115 70 130 1.2 20
Surr 12-Dichlorobenzene-d4 200 107 80 120 10
Surr Dibromofluoromethane 200 96 70 130 10
Surr p-Bromofluorobenzene 200 114 80 120 10
Surrloluene-d8 200 104 80 120 10
Qualifiers
RL Analyte reporting limit ND Not detected at the reporting limit
EFERGY
LAI3OIA rOWES
ENERGYLABORA TORIES INC 2393 Sail Creek Hiq/iway 82601 P0 Sax 3258 Caspec WY82602
Tail Free 888.235.0515 307235.0515 Fax [phone] casperilenergy/ab cani wwwenergy/a/z cam
QAIQC Summary Report
Report Date 04/06/09
Work Order C09030258
Client Denison Mines USA Corp
Project 1st Quarter Chloroform
Analyte Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method SW8260B Batch R115970
Sample ID 09-Mar-09_LCS_3 Laboratory Control Sample Run GCMS2_090309B 03/09/09 1157
Carbon tetrachloride 8.9 ug/L 1.0 89 70 130
Chlorofom 8.8 ug/L 1.0 88 70 130
Chloromethane 7.7 ug/L 1.0 77 70 130
Methylene chloride 8.8 ug/L 1.0 88 70 130
Surr 12-Dichlorobenzene-d4 1.0 106 80 120
Surr Dibromofluoromethane 1.0 91 70 130
Surr p-Bromofluorobenzene 1.0 102 80 130
Surr Toluene-d8 1.0 105 80 120
Sample ID 09-Mar-09_MBLK_7 Method Blank Run GCMS2_090309B 03/09/09 1407
Carbon tetrachloride ND ug/L 1.0
Chloroform ND ug/L 1.0
Chloromethane ND ug/L 1.0
Methylene chloride ND ug/L 1.0
Surr 2-Dichlorobenzene-d4 1.0 107 80 120
Surr Dibromofluoromethane 1.0 86 70 130
Surr p-Bromofluorobenzene 1.0 106 80 120
Surr Toluene-d8 1.0 105 80 120
Sample ID C09030258-OOICMS Sample Matrix Spike Run GCMS2_090309B 03/09/09 1957
Carbon tetrachloride 110 ug/L 10 107 70 130
Chloroform 110 ug/L 10 112 70 130
Surr 2-Dichlorobenzene-d4 10 109 80 120
Surr Dibromofluoromethane 10 96 70 130
Surr p-Bromofluorobenzene 10 105 80 120
SurrToluene-d8 10 106 80 120
Sample ID C09030258-OOICMSD Sample Matrix Spike Duplicate Run GCMS2_090309B 03/09/09 2036
Carbon tetrachloride 100 ug/L 10 105 70 130 1.9 20
Chloroform 110 ug/L 10 111 70 130 1.1 20
Surr 2-Dichlorobenzene-d4 10 110 80 120 10
Surr Dibromofluoromethane 10 97 70 130 10
Surr p-Bromofluorobenzene 10 104 80 120 10
SurrToluene-d8 10 106 80 120 10
Qualifiers
RL Analyte reporting limit ND Not detected at the reporting limit
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Energy Laboratories Inc
VVo rko rd Receipt Checklist
Denison Mines USA Corp C09030258
Login completed by Kimberly Humiston Date and Time Received 3/6/2009 930 AM
Reviewed by Received by pb
Reviewed Date Carrier name Next Day Air
Shipping container/cooler in good condition Yes No Not Present fl
Custody seals intact on shipping container/cooler Yes No Not Present
Custody seals intact on sample bottles Yes No fl Not Present
Chain of custody present Yes No
Chain of custody signed when relinquished and received Yes No fl
Chain of custody agrees with sample labels Yes No
Samples in proper container/bottle Yes 7j No fl
Sample containers intact Yes No
Sufficient sample volume for indicated test Yes No
All samples received within holding time Yes No
Container/Temp Blank temperature 3C On Ice
Water VOA vials have zero headspace Yes No No VOA vials submitted
Water p1-I acceptable upon receipt Yes No Not Applicable fl
Contact and Corrective Action Comments
None
....v ....
ENERG YLABOHATORIES INC 2393 Sail Creek Hiqbway 82601 P0 Box 3258-Caspe WY82602
____________roll Free 888.235.0515 307235.0515 Fai 307234.1639 casperenergyIab.con wwwenergylab.com
LABORATORIES
CLIENT Denison Mines USA Corp Date 06-Apr-09
Project 1st Quarter Chloroform CASE NARRATIVE
Sample Delivery Group C09030258
ORIGINAL SAMPLE SUBMITTALS
All original sample submittals have been returned with the data package
SAMPLE TEMPERATURE COMPLIANCE 4C 2C
Temperature of samples received may not be considered properly preserved by accepted standards Samples that are hand
delivered immediately after collection shall be considered acceptable if there is evidence that the chilling process has begun
GROSS ALPHA ANALYSIS
Method 900.0 for gross alpha and gross beta is intended as drinking water method for low TDS waters Data provided by
this method for non potable waters should be viewed as inconsistent
RADON IN AIR ANALYSIS
The desired exposure time is 48 hours days The time delay in returning the canister to the laboratory for processing
should be as short as possible to avoid excessive decay Maximum recommended delay between end of exposure to
beginning of counting should not exceed days
SOIL/SOLID SAMPLES
All samples reported on an as received basis unless otherwise indicated
ATRAZINE SIMAZINE AND PCB ANALYSIS USING EPA 505
Data for Atrazine and Simazine are reported from EPA 525.2 not from EPA 505 Data reported by ELI using EPA method
505 reflects the results for seven individual Aroclors When the results for all seven are ND not detected the sample
meets EPA compliance criteria for PCB monitoring
SUBCONTRACTING ANALYSIS
Subcontracting of sample analyses to an outside laboratory may be required If so ENERGY LABORATORIES will utilize its
branch laboratories or qualified contract laboratories for this service Any such laboratories will be indicated within the
Laboratory Analytical Report
BRANCH LABORATORY LOCATIONS
eli-b Energy Laboratories Inc Billings MT
eli-g Energy Laboratories Inc Gillette WY
eli-h Energy Laboratories Inc Helena MT
eli-r Energy Laboratories Inc Rapid City SD
eli-t Energy Laboratories Inc College Station TX
CERTIFICATIONS
USEPA Wt00002 FL-DOH NELAC E87641 California 0211 8CA
Oregon WY200001 Utah 3072350515 Virginia 00057 Washington C1903
ISO 17025 DISCLAIMER
The results of this Analytical Report relate only to the items submitted for analysis
ENERGY LABORATORIES INC CASPERWY certifies that certain method selections contained in this report meet
requirements as set forth by the above accrediting authorities Some results requested by the client may not be covered
under these certifications All analysis data to be submitted for regulatory enforcement should be certified in the sample
state of origin Please verify ELIs certification coverage by visiting www.energylab.com
ELI appreciates the opportunity to provide you with this analytical service For additional information and services visit our
web page www.energyIab.com
THIS IS THE FINAL PAGE OF THE LABORATORY ANALYTICAL REPORT
/f
II
/I
II
T37S
7-
EXPLANATION
perched monitoring well show Wig
2200 concentration in uGfl
Iemporwy perched monitoring well
showing concentration in uofl
perched piezomeler not sampled
perched monitoring wefl installed April 2005
showing concentration in uGfl
temporary perched monitoring wel installed
April 2005 showing concentration in uGh
NOTES ND not detected NS not sampled
HYDRO
CHEM INC
KRIGED 1st QUARTER 2009 CHLOROFORM uG/L
WHITE MESA SITE
\\
T38S
SCALE IN FEET
temporary perched monitoring well installed
May 2007 showing concentration in uGfl
REFERENCE
H171 8000/mayO9/ch10309.srt
Date of Sample MW-4 CHCI3 Values Nitrate Values Sampling Event
28-Sep-99 6200 Shallow Sample
28-Sep-99 5820 Deep Sample
28-Sep-99 6020 Total Sample
5-Mar-00 5520 Quarterly
15-Mar-00 5430 Quarterly
2-Sep-00 5420 9.63 Quarterly
30-Nov-00 6470 9.37 Quarterly Split Sample
29-Mar-01 4360 8.77 Quarterly
22-Jun-01 6300 9.02 Quarterly
20-Sep-01 5300 9.45 Quarterly
8-Nov-01 5200 UDEQ Split Sampling Event
26-Mar-02 4700 8.19 First 1/4 2002 Sample
22-May-02 4300 8.21 Quarterly
12-Sep-02 6000 8.45 UDEQ Split Sampling Event
24-Nov-02 2500 8.1 Quarterly
28-Mar-03 2000 8.3 Quarterly
30-Apr-03 3300 NA Well Pumping Event Sample
30-May-03 3400 8.2 Well Pumping Event Sample
23-Jun-03 4300 8.2 2nd Quarter Sampling Event
30-Jul-03 3600 8.1 Well Pumping Event Sample
29-Aug-03 4100 8.4 Well Pumping Event Sample
12-Sep-03 3500 8.5 3rd Quarter Sampling Event
15-Oct-03 3800 8.1 Well Pumping Event Sample
8-Nov-03 3800 8.0 4th Quarter Sampling Event
29-Mar-04 NA Unable to purge/sample
22-Jun-04 NA Unable to purge/sample
17-Sep-04 3300 6.71 3rd Quarter Sampling Event
17-Nov-04 4300 7.5 4th Quarter Sampling Event
16-Mar-05 2900 6.3 1st Quarter Sampling Event
25-May-05 3170 7.1 2nd Quarter Sampling Event
1-Aug-05 3500 7.0 3rd Quarter Sampling Event
1-Dec-05 3000 7.0 4th Quarter Sampling Event
9-Mar-06 3100 6.0 1st Quarter Sampling Event
14-Jun-06 3000 6.0 2nd Quarter Sampling Event
20-Jul-06 2820 1.2 3rd Quarter Sampling Event
9-Nov-06 2830 6.4 4th Quarter Sampling Event
15-Aug-07 2600 6.2 3rd Quarter Sampling Event
10-Oct-07 2300 6.2 4th Quarter Sampling Event
26-Mar-08 2400 5.8 1st Quarter Sampling Event
25-Jun-08 2500 6.09 2nd Quarter Sampling Event
10-Sep-08 1800 6.36 3rd Quarter Sampling Event
15-Oct-08 2100 5.86 4th Quarter Sampling Event
12-Sep-02 5700 8.3 UDEQ Split Sampling Event
24-Nov-02 5000 8.5 Quarterly
Date of Sample MW-4 CHCI3 Values Nitrate Values Sampling Event
28-Mar-03 4500 8.2 Quarterly
23-Jun-03 4700 8.4 2nd Quarter Sampling Event
12-Sep-03 3400 8.6 3rd Quarter Sampling Event
10-Nov-03 4500 8.4 4th Quarter Sampling Event
29-Mar-04 NA Unable to purge/sample
22-Jun-04 NA Unable to purge/sample
17-Sep-04 3300 6.83 3rd Quarter Sampling Event
17-Nov-04 4100 4th Quarter Sampling Event
16-Mar-05 3700 7.1 1st Quarter Sampling Event
25-May-05 3740 7.8 2nd Quarter Sampling Event
1-Aug-05 3800 6.9 3rd Quarter Sampling Event
1-Dec-05 3000 6.7 4th Quarter Sampling Event
9-Mar-06 3700 5.8 1st Quarter Sampling Event
14-Jun-06 3300 7.3 2nd Quarter Sampling Event
20-Jul-06 3190 12 3rd Quarter Sampling Event
8-Nov-06 3370 7.1 4th Quarter Sampling Event
28-Feb-07 2300 6.3 1st Quarter Sampling Event
27-Jun-07 2000.00 2nd Quarter Sampling Event
15-Aug-07 2600 6.2 3rd Quarter Sampling Event
10-Oct-07 2300 6.2 4th Quarter Sampling Event
10-Sep-08 1800 6.36 3re Quarter Sampling Event
15-Oct-08 2100 5.86 4th Quarter Sampling Event
4-Mar-09 2200 5.7 1st Quarter Sampling Event
Date of Sample TW4-1 CHCI3 Values Nitrate Values Sampling Event
28-Jun-99 1700 7.2 Quarterly
10-Nov-99 5.79 Quarterly
15-Mar-00 1100 Quarterly
10-Apr-00 1490 Grab Sample
6-Jun-00 1530 Quarterly
2-Sep-00 2320 5.58 Quarterly
30-Nov-00 3440 7.79 Quarterly Split Sample
29-Mar-01 2340 7.15 Quarterly
22-Jun-01 6000 8.81 Quarterly
20-Sep-01 12.8 Quarterly
8-Nov-01 3200 12.4 UDEQ Split Sampling Event
26-Mar-02 3200 13.1 First 1/4 2002 Sample
22-May-02 2800 12.7 Quarterly
12-Sep-02 3300 12.8 UDEQ Split Sampling Event
24-Nov-02 3500 13.6 Quarterly
28-Mar-03 3000 12.4 Quarterly
23-Jun-03 3600 12.5 2nd Quarter Sampling Event
12-Sep-03 2700 12.5 3rd Quarter Sampling Event
8-Nov-03 3400 11.8 4th Quarter Sampling Event
29-Mar-04 3200 11 1st Quarter Sampling Event
22-Jun-04 3100 8.78 2nd Quarter Sampling Event
17-Sep-04 2800 10.8 3rd Quarter Sampling Event
17-Nov-04 3000 11.1 4th Quarter Sampling Event
16-Mar-05 2700 9.1 1st Quarter Sampling Event
25-May-05 3080 10.6 2nd Quarter Sampling Event
1-Aug-05 2900 9.8 3rd Quarter Sampling Event
1-Dec-05 2400 9.7 4th Quarter Sampling Event
9-Mar-06 2700 9.4 1st Quarter Sampling Event
14-Jun-06 2200 9.6 2nd Quarter Sampling Event
20-Jul-06 2840 9.2 3rd Quarter Sampling Event
8-Nov-06 2260 9.2 4th Quarter Sampling Event
15-Aug-07 2300 8.4 3rd Quarter Sampling Event
10-Oct-07 2000 7.8 4th Quarter Sampling Event
26-Mar-08 2000 7.6 1st Quarter Sampling Event
25-Jun-08 1900 8.68 2nd Quarter Sampling Event
10-Sep-08 1700 8.15 3rd Quarter Sampling Event
15-Oct-08 1700 9.3 4th Quarter Sampling Event
11-Mar-09 1700 7.5 1st Quarter Sampling Event
Date of Sample TW4-2 CHCI3 Values Nitrate Values Sampling Event
10-Nov-99 2510 Quarterly
2-Sep-00 5220 Quarterly
28-Nov-00 4220 10.7 Quarterly Split Sample
29-Mar-01 3890 10.2 Quarterly
22-Jun-01 5500 9.67 Quarterly
20-Sep-01 4900 11.4 Quarterly
8-Nov-01 5300 10.1 UDEQ Split Sampling Event
26-Mar-02 5100 9.98 First 1/4 2002 Sample
23-May-02 4700 9.78 Quarterly
12-Sep-02 6000 9.44 UDEQ Split Sampling Event
24-Nov-02 5400 10.4 Quarterly
28-Mar-03 4700 9.5 Quarterly
23-Jun-03 5100 9.6 2nd Quarter Sampling Event
12-Sep-03 3200 8.6 3rd Quarter Sampling Event
8-Nov-03 4700 9.7 4th Quarter Sampling Event
29-Mar-04 4200 9.14 1st Quarter Sampling Event
22-Jun-04 4300 8.22 2nd Quarter Sampling Event
17-Sep-04 4100 8.4 3rd Quarter Sampling Event
17-Nov-04 4500 8.6 4th Quarter Sampling Event
16-Mar-05 3700 7.7 1st Quarter Sampling Event
25-May-05 3750 8.6 2nd Quarter Sampling Event
31-Aug-05 3900 8.0 3rd Quarter Sampling Event
1-Dec-05 3500 7.8 4th Quarter Sampling Event
9-Mar-06 3800 7.5 1st Quarter Sampling Event
14-Jun-06 3200 7.1 2nd Quarter Sampling Event
20-Jul-06 4120 7.4 3rd Quarter Sampling Event
8-Nov-06 3420 7.6 4th Quarter Sampling Event
15-Aug-07 3400 7.3 3rd Quarter Sampling Event
10-Oct-07 3200 4th Quarter Sampling Event
26-Mar-08 3300 6.9 1st Quarter Sampling Event
25-Jun-08 3100 7.44 2nd Quarter Sampling Event
10-Sep-08 2800 7.1 3rd Quarter Sampling Event
15-Oct-08 3200 7.99 4th Quarter Sampling Event
11-Mar-09 3100 6.5 1st Quarter Sampling Event
Date of Sample TW4-3 CHCI3 Values Nitrate Values Sampling Event
28-Jun-99 3500 7.6 Quarterly
29-Nov-99 702 Quarterly
15-Mar-00 834 Quarterly
2-Sep-00 836 1.56 Quarterly
29-Nov-00 836 .97 Quarterly Split Sample
27-Mar-01 347 .85 Quarterly
21-Jun-01 390 2.61 Quarterly
20-Sep-01 300 3.06 Quarterly
7-Nov-01 170 3.6 UDEQ Split Sampling Event
26-Mar-02 11 3.87 First 1/4 2002 Sample
21-May-02 204 4.34 Quarterly
12-Sep-02 203 4.32 UDEQ Split Sampling Event
24-Nov-02 102 4.9 Quarterly
28-Mar-03 ND 4.6 Quarterly
23-Jun-03 ND 4.8 2nd Quarter Sampling Event
12-Sep-03 ND 4.3 3rd Quarter Sampling Event
8-Nov-03 ND 4.8 4th Quarter Sampling Event
29-Mar-04 ND 4.48 1st Quarter Sampling Event
22-Jun-04 ND 3.68 2nd Quarter Sampling Event
17-Sep-04 ND 3.88 3rd Quarter Sampling Event
17-Nov-04 ND 4.1 4th Quarter Sampling Event
16-Mar-OS ND 3.5 1st Quarter Sampling Event
25-May-05 ND 3.7 2nd Quarter Sampling Event
1-Aug-05 ND 3.5 3rd Quarter Sampling Event
1-Dec-OS ND 3.3 4th Quarter Sampling Event
9-Mar-06 ND 3.3 1st Quarter Sampling Event
14-Jun-06 ND 3.2 2nd Quarter Sampling Event
20-Jul-06 ND 2.9 3rd Quarter Sampling Event
8-Nov-06 ND 1.5 4th Quarter Sampling Event
28-Feb-07 ND 3.1 1st Quarter Sampling Event
27-Jun-07 ND 3.3 2nd Quarter Sampling Event
15-Aug-2007 ND 3.1 3rd Quarter Sampling Event
10/10/2007 ND 2.8 4th Quarter Sampling Event
26-Mar-08 ND 2.8 1st Quarter Sampling Event
25-Jun-08 ND 2.85 2nd Quarter Sampling Event
10-Sep-08 ND 2.66 3rd Quarter Sampling Event
15-Oct-08 ND 2.63 4th Quarter Sampling Event
4-Mar-09 ND 2.S 1st Quarter Sampling Event
Date of Sample TW4-4 CHCI3 Values Nitrate Values Sampling Event
6-Jun-00 ND Initial
2-Sep-00 ND Quarterly
28-Nov-00 3.85 .02 Quarterly Split Sample
28-Mar-01 2260 14.5 Quarterly
20-Jun-01 3100 14 Quarterly
20-Sep-01 3200 14.8 Quarterly
8-Nov-01 2900 15 UDEQ Split Sampling Event
26-Mar-02 3400 13.2 First 1/4 2002 Sample
22-May-02 3200 13.4 Quarterly
12-Sep-02 4000 12.6 UDEQ Split Sampling Event
24-Nov-02 3800 13.4 Quarterly
28-Mar-03 3300 12.8 Quarterly
23-Jun-03 3600 12.3 2nd Quarter Sampling Event
12-Sep-03 2900 12.3 3rd Quarter Sampling Event
8-Nov-03 3500 12.2 4th Quarter Sampling Event
29-Mar-04 3200 12.1 1st Quarter Sampling Event
22-Jun-04 3500 11.1 2nd Quarter Sampling Event
17-Sep-04 3100 10.8 3rd Quarter Sampling Event
17-Nov-04 3600 11 .6 4th Quarter Sampling Event
16-Mar-05 3100 10 1st Quarter Sampling Event
25-May-05 2400 11.3 2nd Quarter Sampling Event
31-Aug-05 3200 9.9 3rd Quarter Sampling Event
1-Dec-05 2800 10.2 4th Quarter Sampling Event
9-Mar-06 2900 9.5 1st Quarter Sampling Event
14-Jun-06 2600 8.6 2nd Quarter Sampling Event
20-Jul-06 2850 9.7 3rd Quarter Sampling Event
8-Nov-06 2670 10.1 4th Quarter Sampling Event
28-Feb-07 2200 9.0 1st Quarter Sampling Event
27-Jun-07 2400 9.4 2nd Quarter Sampling Event
15-Aug-07 2700 9.5 3rd Quarter Sampling Event
10-Oct-07 2500 9.5 4th Quarter Sampling Event
26-Mar-08 2800 9.2 1st Quarter Sampling Event
25-Jun-08 2500 10.8 2nd Quarter Sampling Event
10-Sep-08 2200 8.83 3rd Quarter Sampling Event
15-Oct-08 2500 10.1 4th Quarter Sampling Event
4-Mar-09 2200 10.2 1st Quarter Sampling Event
Date of Sample TW4-5 CHCI3 Values Nitrate Values Sampling Event
20-Dec-99 29.5 Quarterly
15-Mar-00 49 Quarterly
2-Sep-00 124 .86 Quarterly
29-Nov-00 255 3.16 Quarterly Split Sample
28-Mar-01 236 3.88 Quarterly
20-Jun-01 240 6.47 Quarterly
20-Sep-01 240 2.1 Quarterly
7-Nov-01 260 5.2 UDEQ Split Sampling Event
26-Mar-02 260 2.54 First 1/4 2002 Sample
22-May-02 300 3.05 Quarterly
12-Sep-02 330 4.61 UDEQ Split Sampling Event
24-Nov-02 260 1.1 Quarterly
28-Mar-03 240 1.9 Quarterly
23-Jun-03 290 3.2 2nd Quarter Sampling Event
12-Sep-03 200 3rd Quarter Sampling Event
8-Nov-03 240 4.6 4th Quarter Sampling Event
29-Mar-04 210 4.99 1st Quarter Sampling Event
22-Jun-04 200 4.78 2nd Quarter Sampling Event
17-Sep-04 150 4.79 3rd Quarter Sampling Event
17 Nov 04 180 5.1 4th Quarter Sampling Event
16-Mar-05 120 4.9 1st Quarter Sampling Event
25-May-05 113 3.7 2nd Quarter Sampling Event
1-Aug-05 82 6.0 3rd Quarter Sampling Event
1-Dec-05 63 6.0 4th Quarter Sampling Event
9-Mar-06 66 6.0 1st Quarter Sampling Event
14-Jun-06 51 5.9 2nd Quarter Sampling Event
20-Jul-06 53.70 3rd Quarter Sampling Event
8-Nov-06 47.10 2.9 4th Quarter Sampling Event
28-Feb-07 33 7.8 1st Quarter Sampling Event
27-Jun-07 26 7.0 2nd Quarter Sampling Event
15-Aug-07 9.2 7.7 3rd Quarter Sampling Event
10-Oct-17 9.5 8.2 4th Quarter Sampling Event
26-Mar-08 11 7.4 1st Quarter Sampling Event
25-Jun-08 9.3 8.7 2nd Quarter Sampling Event
10-Sep-08 11 7.9 3rd Quarter Sampling Event
15-Oct-08 10 9.3 4th Quarter Sampling Event
4-Mar-09 12 7.9 1st Quarter Sampling Event
Date of Sample TW4-6 CHCI3 Values Nitrate Values Sampling Event
6-Jun-00 ND Initial
2-Sep-00 ND Quarterly
28-Nov-00 ND ND Quarterly Split Sample
26-Mar-01 ND .13 Quarterly
20-Jun-01 ND ND Quarterly
20-Sep-01 3.6 ND Quarterly
7-Nov-01 1.00 ND UDEQ Split Sampling Event
26-Mar-02 ND ND First 1/4 2002 Sample
21-May-02 ND ND Quarterly
12-Sep-02 ND ND UDEQ Split Sampling Event
24-Nov-02 ND ND Quarterly
28-Mar-03 ND 0.1 Quarterly
23-Jun-03 ND ND 2nd Quarter Sampling Event
12-Sep-03 ND ND 3rd Quarter Sampling Event
8-Nov-03 ND ND 4th Quarter Sampling Event
29-Mar-04 ND ND 1st Quarter Sampling Event
22-Jun-04 ND ND 2nd Quarter Sampling Event
17-Sep-04 ND ND 3rd Quarter Sampling Event
17-Nov-04 ND ND 4th Quarter Sampling Event
16-Mar-05 ND 0.2 1st Quarter Sampling Event
25-May-05 ND 0.4 2nd Quarter Sampling Event
1-Aug-05 10.0 0.5 3rd Quarter Sampling Event
1-Dec-05 17.0 0.9 4th Quarter Sampling Event
9-Mar-06 31.0 1.2 1st Quarter Sampling Event
14-Jun-06 19.0 1.0 2nd Quarter Sampling Event
20-Jul-06 11.00 0.6 3rd Quarter Sampling Event
8-Nov-06 42.80 1.4 4th Quarter Sampling Event
28-Feb-07 46 1.5 1st Quarter Sampling Event
27-Jun-07 0.11 0.6 2nd Quarter Sampling Event
15-Aug-07 18 0.7 3rd Quarter Sampling Event
10-Oct-07 18 0.8 4th Quarter Sampling Event
26-3-08 52 1.1 1st Quarter Sampling Event
25-Jun-08 24 0.9 2nd Quarter Sampling Event
10-Sep-08 39 1.14 3rd Quarter Sampling Event
15-Oct-08 37 .01 4th Quarter Sampling Event
11 -Mar-09 81 2.2 1st Quarter Sampling Event
Date of Sample TW4-7 CHCI3 Values Nitrate Values Sampling Event
29-Nov-99 256 Quarterly
15-Mar-00 616 Quarterly
2-Sep-00 698 Quarterly
29-Nov-00 684 1.99 Quarterly Split Sample
28-Mar-01 747 2.46 Quarterly
20-Jun-01 1100 2.65 Quarterly
20-Sep-01 1200 3.38 Quarterly
8-Nov-01 1100 2.5 UDEQ Split Sampling Event
26-Mar-02 1500 3.76 First 1/4 2002 Sample
23-May-02 1600 3.89 Quarterly
12-Sep-02 1500 3.18 UDEQ Split Sampling Event
24-Nov-02 2300 4.6 Quarterly
28-Mar-03 1800 4.8 Quarterly
23-Jun-03 5200 7.6 2nd Quarter Sampling Event
12-Sep-03 3600 7.6 3rd Quarter Sampling Event
8-Nov-03 4500 7.1 4th Quarter Sampling Event
29-Mar-04 2500 4.63 1st Quarter Sampling Event
22-Jun-04 2900 4.83 2nd Quarter Sampling Event
17-Sep-04 3100 5.59 3rd Quarter Sampling Event
17-Nov-04 3800 4th Quarter Sampling Event
16-Mar-05 3100 5.2 1st Quarter Sampling Event
25-May-05 2700 5.4 2nd Quarter Sampling Event
1-Aug-05 3100 5.2 3rd Quarter Sampling Event
1-Dec-05 2500 5.3 4th Quarter Sampling Event
9-Mar-06 1900 1.0 1st Quarter Sampling Event
14-Jun-06 2200 4.5 2nd Quarter Sampling Event
20-Jul-06 2140 4.7 3rd Quarter Sampling Event
8-Nov-06 2160 4.6 4th Quarter Sampling Event
28-Feb-07 1800 1st Quarter Sampling Event
27-Jun-07 2600 5.1 2nd Quarter Sampling Event
14-Aug-07 2300 4.7 3rd Quarter Sampling Event
10-Oct-07 1900 4.7 4th Quarter Sampling Event
26-Mar-08 2200 4.2 1st Quarter Sampling Event
25-Jun-08 1800 4.8 2nd Quarter Sampling Event
10-Sep-08 1600 4.16 3rd Quarter Sampling Event
15-Oct-08 1900 4.01 4th Quarter Sampling Event
11-Mar-09 1800 3.7 1st Quarter Sampling Event
Date of Sample 1W4-7 CHCI3 Values Nitrate Values Sampling Event
29-Nov-99 256 Quarterly
15-Mar-00 616 Quarterly
2-Sep-00 698 Quarterly
29-Nov-00 684 1.99 Quarterly Split Sample
28-Mar-01 747 2.46 Quarterly
20-Jun-01 1100 2.65 Quarterly
20-Sep-01 1200 3.38 Quarterly
8-Nov-01 1100 2.5 UDEQ Split Sampling Event
26-Mar-02 1500 3.76 First 1/4 2002 Sample
23-May-02 1600 3.89 Quarterly
12-Sep-02 1500 3.18 UDEQ Split Sampling Event
24-Nov-02 2300 4.6 Quarterly
28-Mar-03 1800 4.8 Quarterly
23-Jun-03 5200 7.6 2nd Quarter Sampling Event
12-Sep-03 3600 7.6 3rd Quarter Sampling Event
8-Nov-03 4500 7.1 4th Quarter Sampling Event
29-Mar-04 2500 4.63 1st Quarter Sampling Event
22-Jun-04 2900 4.83 2nd Quarter Sampling Event
17-Sep-04 3100 5.59 3rd Quarter Sampling Event
17-Nov-04 3800 4th Quarter Sampling Event
16-Mar-05 3100 5.2 1st Quarter Sampling Event
25-May-05 2700 5.4 2nd Quarter Sampling Event
1-Aug-05 3100 5.2 3rd Quarter Sampling Event
1-Dec-05 2500 5.3 4th Quarter Sampling Event
9-Mar-06 1900 1.0 1st Quarter Sampling Event
14-Jun-06 2200 4.5 2nd Quarter Sampling Event
20-Jul-06 2140 4.7 3rd Quarter Sampling Event
8-Nov-06 2160 4.6 4th Quarter Sampling Event
28-Feb-07 1800 1st Quarter Sampling Event
27-Jun-07 2600 5.1 2nd Quarter Sampling Event
14-Aug-07 2300 4.7 3rd Quarter Sampling Event
10-Oct-07 1900 4.7 4th Quarter Sampling Event
26-Mar-08 2200 4.2 1st Quarter Sampling Event
25-Jun-08 1800 4.8 2nd Quarter Sampling Event
10-Sep-08 1600 4.16 3rd Quarter Sampling Event
15-Oct-08 1900 4.01 4th Quarter Sampling Event
11-Mar-09 1800 3.7 1st Quarter Sampling Event
Date of Sample TW4-8 CHCI3 Values Nitrate Values Sampling Event
29-Nov-99 ND Quarterly
5-Mar-00 21.8 Quarterly
2-Sep-00 102 Quarterly
29-Nov-00 107 ND Quarterly Split Sample
26-Mar-01 116 ND Quarterly
20-Jun-01 180 ND Quarterly
20-Sep-01 180 0.35 Quarterly
7-Nov-01 180 ND UDEQ Split Sampling Event
26-Mar-02 190 0.62 First 1/4 2002 Sample
22-May-02 210 0.77 Quarterly
12-Sep-02 300 ND UDEQ Split Sampling Event
24-Nov-02 450 ND Quarterly
28-Mar-03 320 0.8 Quarterly
23-Jun-03 420 ND 2nd Quarter Sampling Event
12-Sep-03 66 ND 3rd Quarter Sampling Event
8-Nov-03 21.0 0.1 4th Quarter Sampling Event
29-Mar-04 24 0.65 1st Quarter Sampling Event
22-Jun-04 110 0.52 2nd Quarter Sampling Event
17-Sep-04 120 ND 3rd Quarter Sampling Event
17-Nov-04 120 ND 4th Quarter Sampling Event
16-Mar-05 10.0 ND 1st Quarter Sampling Event
25-May-05 ND 0.2 2nd Quarter Sampling Event
1-Aug-05 1.1 ND 3rd Quarter Sampling Event
1-Dec-OS ND ND 4th Quarter Sampling Event
9-Mar-06 1.3 0.3 1st Quarter Sampling Event
14-Jun-06 ND ND 2nd Quarter Sampling Event
20-Jul-06 ND 0.1 3rd Quarter Sampling Event
8-Nov-06 ND ND 4th Quarter Sampling Event
28-Feb-07 2.50 0.7 1st Quarter Sampling Event
27-Jun-07 2.5 0.2 2nd Quarter Sampling Event
15-Aug-07 1.5 ND 3rd Quarter Sampling Event
10-Oct-07 3.5 0.5 4th Quarter Sampling Event
26-Mar-08 ND 0.1 1st Quarter Sampling Event
25-Jun-08 ND ND 2nd Quarter Sampling Event
10-Sep-08 ND ND 3rd Quarter Sampling Event
15-Oct-08 ND ND 4th Quarter Sam pling Event
4-Mar-09 ND ND 1st Quarter Sampling Event
Date of Sample TW4-9 CHCI3 Values Nitrate Values Sampling Event
20-Dec-99 4.24 Quarterly
15-Mar-00 .88 Quarterly
2-Sep-00 14.2 Quarterly
29-Nov-00 39.4 ND Quarterly Split Sample
27-Mar-01 43.6 ND Quarterly
20-Jun-01 59 .15 Quarterly
20-Sep-01 19 0.40 Quarterly
7-Nov-01 49 0.1 UDEQ Split Sampling Event
26-Mar-02 41 0.5 First 1/4 2002 Sample
22-May-02 ______________38 0.65 Quarterly
12-Sep-02 49 UDEQ Split Sampling Event
24-Nov-02 51 0.6 Quarterly
28-Mar-03 34 0.6 Quarterly
23-Jun-03 33 0.8 2nd Quarter Sampling Event
12-Sep-03 32 1.1 3rd Quarter Sampling Event
8-Nov-03 46 1.1 4th Quarter Sampling Event
29-Mar-04 48 0.82 1st Quarter Sampling Event
22-Jun-04 48 0.75 2nd Quarter Sampling Event
17-Sep-04 39 0.81 3rd Quarter Sampling Event
17-Nov-04 26 1.2 4th Quarter Sampling Event
16-Mar-05 3.8 1.3 1st Quarter Sampling Event
25-May-05 1.2 1.3 2nd Quarter Sampling Event
1-Aug-05 ND 1.3 3rd Quarter Sampling Event
1-Dec-OS ND 1.3 4th Quarter Sampling Event
9-Mar-06 ND 1.5 1st Quarter Sam pling Event
14-Jun-06 ND 1.5 2nd Quarter Sampling Event
20-Jul-06 ND 0.9 3rd Quarter Sampling Event
8-Nov-06 ND 0.7 4th Quarter Sampling Event
28-Feb-07 ND 0.6 1st Quarter Sampling Event
27-Jun-07 21 1.3 2nd Quarter Sampling Event
15-Aug-07 9.5 1.8 3rd Quarter Sampling Event
10-Oct-07 8.7 4th Quarter Sampling Event
26-Mar-08 1.3 2.1 1st Quarter Sampling Event
25-Jun-08 1.0 2.3 2nd Quarter Sampling Event
10-Sep-08 ND 2.79 3rd Quarter Sampling Event
15-Oct-08 ND 1.99 4th Quarter Sampling Event
4-Mar-09 ND 2.5 1st Quarter Sampling Event
Date of Sample 1W4-1 CHCI3 Values Nitrate Values Sampling Event
21-Jan-02 14 Initial Sample
26-Mar-02 16 0.14 First 1/4 2002 Sample
21-May-02 17 0.11 Quarterly
12-Sep-02 6.0 ND UDEQ Split Sampling Event
24-Nov-02 14 ND Quarterly
28-Mar-03 29 0.2 Quarterly
23-Jun-03 110 0.4 2nd Quarter Sampling Event
12-Sep-03 74 0.4 3rd Quarter Sampling Event
8-Nov-03 75 0.3 4th Quarter Sampling Event
29-Mar-04 22 0.1 1st Quarter Sampling Event
22-Jun-04 32 ND 2nd Quarter Sampling Event
17-Sep-04 63 0.46 3rd Quarter Sampling Event
17-Nov-04 120 0.4 4th Quarter Sampling Event
16-Mar-05 140 1.6 1st Quarter Sam pling Event
25-May-05 62.4 0.8 2nd Quarter Sampling Event
31-Aug-05 110 1.1 3rd Quarter Sampling Event
1-Dec-05 300 3.3 4th Quarter Sampling Event
9-Mar-06 190 2.4 1st Quarter Sampling Event
14-Jun-06 300 3.5 2nd Quarter Sampling Event
20-Jul-06 504 6.8 3rd Quarter Sampling Event
8-Nov-06 452 5.7 4th Quarter Sampling Event
28-Feb-07 500 7.6 1st Quarter Sampling Event
27-Jun-07 350 5.1 2nd Quarter Sampling Event
15-Aug-07 660 7.3 3rd Quarter Sampling Event
10-Oct-07 470 6.7 4th Quarter Sampling Event
26-Mar-08 620 7.3 1st Quarter Sampling Event
25-Jun-08 720 9.91 2nd Quarter Sampling Event
10-Sep-08 680 9.23 3rd Quarter Sampling Event
15-Oct-08 1200 10.5 4th Quarter Sampling Event
3-11-09 1100 11.6 1st Quarter Sampling Event
Date of Sample TW4-1 CHCI3 Values Nitrate Values Sampling Event
21-Jan-02 4700 Initial Sample
26-Mar-02 4900 9.60 First 1/4 2002 Sample
22-May-02 5200 9.07 Quarterly
12-Sep-02 6200 8.84 UDEQ Split Sampling Event
24-Nov-02 5800 9.7 Quarterly
28-Mar-03 5100 9.7 Quarterly
23-Jun-03 5700 9.4 2nd Quarter Sampling Event
12-Sep-03 4600 9.9 3rd Quarter Sampling Event
8-Nov-03 5200 9.3 4th Quarter Sampling Event
29-Mar-04 5300 9.07 1st Quarter Sampling Event
22-Jun-04 5700 8.74 2nd Quarter Sampling Event
17-Sep-04 4800 8.75 3rd Quarter Sampling Event
17-Nov-04 5800 9.7 4th Quarter Sampling Event
16-Mar-05 4400 8.7 1st Quarter Sampling Event
25-May-05 3590 10.3 2nd Quarter Sampling Event
1-Aug-05 4400 9.4 3rd Quarter Sampling Event
1-Dec-05 4400 9.4 4th Quarter Sampling Event
9-Mar-06 4400 9.2 1st Quarter Sampling Event
14-Jun-06 4300 10 2nd Quarter Sampling Event
20-Jul-06 4080 10 3rd Quarter Sampling Event
8-Nov-06 3660 10 4th Quarter Sampling Event
28-Feb-07 3500 10.1 1st Quarter Sampling Event
27-Jun-07 3800 10.6 2nd Quarter Sampling Event
15-Aug-07 4500 10.2 3rd Quarter Sampling Event
10-Oct-07 4400 9.8 4th Quarter Sampling Event
26-Mar-08 340 7.7 1st Quarter Sampling Event
25-Jun-08 640 7.28 2nd Quarter Sampling Event
10-Sep-08 900 7.93 3rd Quarter Sampling Event
15-Oct-08 1000 9.46 4th Quarter Sampling Event
11-Mar--09 1100 7.3 1st Quarter Sampling Event
Date of Sample TW4-12 CHCI3 Values Nitrate Values Sampling Event
12-Sep-02 1.5 2.54 UDEQ Split Sampling Event
24-Nov-02 ND 2.2 Quarterly
28-Mar-03 ND .9 Quarterly
23-Jun-03 ND 1.8 2nd Quarter Sampling Event
12-Sep-03 ND 1.8 3rd Quarter Sampling Event
9-Nov-03 ND .6 4th Quarter Sampling Event
29-Mar-04 ND 1.58 1st Quarter Sampling Event
22-Jun-04 ND 1.4 2nd Quarter Sampling Event
17-Sep-04 ND 1.24 3rd Quarter Sampling Event
17-Nov-04 ND 1.5 4th Quarter Sampling Event
16-Mar-OS ND 1.4 1st Quarter Sampling Event
25-May-OS ND .6 2nd Quarter Sampling Event
31-Aug-OS ND 1.5 3rd Quarter Sampling Event
1-Dec-OS ND 1.4 4th Quarter Sampling Event
9-Mar-06 ND 1.3 1st Quarter Sampling Event
14-Jun-06 ND 1.4 2nd Quarter Sampling Event
20-Jul-06 ND 1.4 3rd Quarter Sampling Event
8-Nov-06 ND .4 4th Quarter Sampling Event
28-Feb-07 ND 1.5 1st Quarter Sampling Event
27-Jun-07 ND 15 2nd Quarter Sampling Event
Aug-i 5-07 ND 1.4 3rd Quarter Sampling Event
10-Oct-07 ND 1.4 4th Quarter Sampling Event
26-Mar-08 ND 1.6 1st Quarter Sampling Event
25-Jun-08 ND 2.69 2nd Quarter Sampling Event
10-Sep-08 ND 2.65 3rd Quarter Sampling Event
15-Oct-08 ND 2.47 4th Quarter Sampling Event
4-Mar-09 ND 2.4 1st Quarter Sampling Event
Date of Sample TW4-13 CHCI3 Values Nitrate Values Sampling Event
12-Sep-02 ND ND UDEQ Split Sampling Event
24-Nov-02 ND ND Quarterly
28-Mar-03 ND 0.2 Quarterly
23-Jun-03 ND 0.2 2nd Quarter Sampling Event
12-Sep-03 ND ND 3rd Quarter Sampling Event
9-Nov-03 ND 0.9 4th Quarter Sampling Event
29-Mar-04 ND 0.12 1st Quarter Sampling Event
22-Jun-04 ND 0.17 2nd Quarter Sampling Event
17-Sep-04 ND 4.43 3rd Quarter Sampling Event
17-Nov-04 ND 4.7 4th Quarter Sampling Event
16-Mar-05 ND 4.2 1st Quarter Sampling Event
25-May-OS ND 4.3 2nd Quarter Sampling Event
1-Aug-05 ND 4.6 3rd Quarter Sampling Event
1-Dec-OS ND 4.3 4th Quarter Sampling Event
9-Mar-06 ND 4.2 1st Quarter Sampling Event
14-Jun-06 ND 4.9 2nd Quarter Sampling Event
20-Jul-06 ND 4.3 3rd Quarter Sampling Event
8-Nov-06 ND 0.8 4th Quarter Sampling Event
28-Feb-07 ND 1st Quarter Sampling Event
27-Jun-07 ND 4.6 2nd Quarter Sampling Event
15-Aug-07 ND 4.4 3rd Quarter Sampling Event
10-Oct-07 ND 4.1 4th Quarter Sampling Event
26-Mar-08 ND 3.8 1st Quarter Sampling Event
25-Jun-08 ND 4.24 2nd Quarter Sampling Event
10-Sep-08 ND 4.26 3rd Quarter Sampling Event
15-Oct-08 ND 4.63 4th Quarter Sampling Event
4-Mar-09 ND 3.7
Date of Sample TW4-15 CHCI3 Values Nitrate Values Sampling Event
12-Sep-02 2.6 ND UDEQ Split Sampling Event
24-Nov-02 ND ND Quarterly
28-Mar-03 ND 0.1 Quarterly
23-Jun-03 7800 14.5 2nd Quarter Sampling Event
15-Aug-03 7400 16.8 Well Pumping Event Sample
12-Sep-03 2500 2.7 3rd Quarter Sampling Event
25-Sep-03 2600 2.5 Well Pumping Event Sample
29-Oct-03 3100 3.1 Well Pumping Event Sample
8-Nov-03 3000 2.8 4th Quarter Sampling Event
29-Mar-04 NA NA Unable to purge/sample
22-Jun-04 NA NA Unable to purge/sample
17-Sep-04 1400 0.53 3rd Quarter Sampling Event
17-Nov-04 300 0.2 4th Quarter Sampling Event
16-Mar-05 310 0.3 1st Quarter Sampling Event
30-Mar-05 230 0.2 1st Quarter POC Sampling
25-May-05 442 0.2 2nd Quarter Sampling Event
1-Aug-05 960 0.2 3rd Quarter Sampling Event
1-Dec-05 1000 0.3 4th Quarter Sampling Event
9-Mar-06 1100 0.2 1st Quarter Sampling Event
14-Jun-06 830 0.2 2nd Quarter Sampling Event
20-Jul-06 2170 1.4 3rd Quarter Sampling Event
8-Nov-06 282 0.3 4th Quarter Sampling Event
28-Feb-07 570 0.5 1st Quarter Sampling Event
27-Jun-07 300 0.4 2nd Quarter Sampling Event
15-Aug-07 1400 3rd Quarter Sampling Event
10-Oct-07 2000 0.6 4th Quarter Sampling Event
26-Mar-08 930 0.1 1st Quarter Sampling Event
25-Jun-08 1300 0.56 2nd Quarter Sampling Event
10-Sep-08 630 0.24 3rd Quarter Sampling Event
15-Oct-08 1700 0.65 4th Quarter Sampling Event
4-Mar-09 950 0.4 1st Quarter Samplng Event
12-Sep-02 TW4-16 140 ND UDEQ Split Sampling Event
24-Nov-02 200 ND Quarterly
28-Mar-03 260 ND Quarterly
23-Jun-03 370 ND 2nd Quarter Sampling Event
12-Sep-03 350 ND 3rd Quarter Sampling Event
8-Nov-03 400 ND 4th Quarter Sampling Event
29-Mar-04 430 ND 1st Quarter Sampling Event
22-Jun-04 530 ND 2nd Quarter Sampling Event
17-Sep-04 400 ND 3rd Quarter Sampling Event
17-Nov-04 350 ND 4th Quarter Sampling Event
16-Mar-05 240 ND 1st Quarter Sampling Event
25-May-05 212 ND 2nd Quarter Sampling Event
1-Aug-05 85 ND 3rd Quarter Sampling Event
1-Dec-05 14 1.4 4th Quarter Sampling Event
9-Mar-06 39 3.0 1st Quarter Sampling Event
14-Jun-06 13 1.9 2nd Quarter Sampling Event
20-Jul-06 2.7 3rd Quarter Sampling Event
8-Nov-06 13.6 5.6 4th Quarter Sampling Event
28-Feb-07 8.70 12.3 1st Quarter Sampling Event
27-Jun-07 2.60 9.9 2nd Quarter Sampling Event
15-Aug-07 7.10 5.4 3rd Quarter Sampling Event
10-Oct-07 1.40 4.4 4th Quarter Sampling Event
26-Mar-08 11.00 ND 1st Quarter Sampling Event
25-Jun-08 ND 1.46 2nd Quarter Sampling Event
10-Sep-08 10.00 10.5 3rd Quarter Sampling Event
15-Oct-08 3.9 9.82 4th Quarter Sampling Event
4-Mar-09 ND 9.6 1st Quarter Sampling Event
Date of Sample TW4-17 CHCI3 Values Nitrate Values Sampling Event
12-Sep-02 1.6 ND UDEQ Split Sampling Event
24-Nov-02 ND ND Quarterly
28-Mar-03 ND ND Quarterly
23-Jun-03 ND ND 2nd Quarter Sampling Event
12-Sep-03 ND ND 3rd Quarter Sampling Event
8-Nov-03 ND ND 4th Quarter Sampling Event
29-Mar-04 ND ND 1st Quarter Sampling Event
22-Jun-04 ND ND 2nd Quarter Sampling Event
17-Sep-04 ND ND 3rd Quarter Sampling Event
17-Nov-04 ND ND 4th Quarter Sampling Event
16-Mar-05 ND ND 1st Quarter Sampling Event
30 Mar05 ND ND 1st Quarter POC Sampling
25-May-OS ND ND 2nd Quarter Sampling Event
1-Aug-05 ND ND 3rd Quarter Sampling Event
1-Dec-OS ND ND 4th Quarter Sampling Event
9-Mar-06 ND ND 1st Quarter Sampling Event
14-Jun-06 ND ND 2nd Quarter Sampling Event
20-Jul-06 ND ND 3rd Quarter Sampling Event
8-Nov-06 ND ND 4th Quarter Sampling Event
28-Feb-07 ND ND 1st Quarter Sam pling Event
27-Jun-07 ND ND 2nd Quarter Sampling Event
15-Aug-07 ND ND 3rd Quarter Sampling Event
10-Oct-07 ND ND 4th Quarter Sampling Event
26-Mar-08 ND ND 1st Quarter Sampling Event
25-Jun-08 ND ND 2nd Quarter Sampling Event
10-Sep-08 ND ND 3rd Quarter Sampling Event
15-Oct-08 ND ND 4th Quarter Sampling Event
4-Mar-09 ND ND 1st Quarter Sam pIng Event
Date of Sample TW4-18 CHCI3 Values Nitrate Values Sampling Event
12-Sep-02 440 1.49 UDEQ Split Sampling Event
24-Nov-02 240 13.3 Quarterly
28-Mar-03 160 13.1 Quarterly
23-Jun-03 110 19 2nd Quarter Sampling Event
12-Sep-03 68 19.9 3rd Quarter Sampling Event
9-Nov-03 84 20.7 4th Quarter Sampling Event
29-Mar-04 90 14 1st Quarter Sampling Event
22-Jun-04 82 12.2 2nd Quarter Sampling Event
17-Sep-04 38 14.5 3rd Quarter Sampling Event
17-Nov-04 51 17.3 4th Quarter Sampling Event
16-Mar-OS 38 14.1 1st Quarter Sampling Event
25-May-05 29.8 12.9 2nd Quarter Sampling Event
1-Aug-05 39 13.3 3rd Quarter Sampling Event
1-Dec-05 14 7.3 4th Quarter Sampling Event
9-Mar-06 12 5.9 1st Quarter Sampling Event
14-Jun-06 12 4.7 2nd Quarter Sampling Event
20-Jul-06 10.80 6.1 3rd Quarter Sampling Event
8-Nov-06 139.00 8.7 4th Quarter Sampling Event
28-Feb-07 9.2 5.1 1st Quarter Sampling Event
27-Jun-07 8.0 4.9 2nd Quarter Sampling Event
15-Aug-07 8.9 3rd Quarter Sampling Event
10-Oct-08 7.4 4.4 4th Quarter Sampling Event
26-Mar-08 6.4 0.7 1st Quarter Sampling Event
25-Jun-08 5.7 4.55 2nd Quarter Sampling Event
10-Sep-08 8.0 4.68 3rd Quarter Sampling Event
15-Oct-08 9.4 515 4th Quarter Sampling Event
4-Mar-09 11.0 5.2 4th Quarter Sampling Event
Date of Sample TW4-1 CHCI3 Values Nitrate Values Sampling Event
12-Sep-02 7700 47.6 UDEQ Split Sampling Event
24-Nov-02 5400 42 Quarterly
28-Mar-03 4200 61.4 Quarterly
15-May-03 4700 NA Well Pumping Event Sample
23-Jun-03 4500 11.4 2nd Quarter Sampling Event
15-Jul-03 2400 6.8 Well Pumping Event Sample
15-Aug-03 2600 Well Pumping Event Sample
12-Sep-03 2500 5.7 3rd Quarter Sampling Event
25-Sep-03 4600 9.2 Well Pumping Event Sample
29-Oct-03 4600 7.7 Well Pumping Event Sample
9-Nov-03 2600 4.8 4th Quarter Sampling Event
29-Mar-04 NA NA Unable to purge/sample
22-Jun-04 NA NA Unable to purge/sample
16-Aug-04 7100 9.91 Well Pumping Event Sample
17-Sep-04 2600 4.5 3rd Quarter Sampling Event
17-Nov-04 1800 3.6 4th Quarter Sampling Event
16-Mar-05 2200 5.3 1st Quarter Sampling Event
25-May-05 1200 5.7 2nd Quarter Sampling Event
1-Aug-05 1400 4.6 3rd Quarter Sampling Event
1-Dec-05 2800 ND 4th Quarter Sampling Event
9-Mar-06 1200 4.0 1st Quarter Sampling Event
14-Jun-06 1100 5.2 2nd Quarter Sampling Event
20-Jul-06 1120 4.3 3rd Quarter Sampling Event
8-Nov-07 1050 4.6 4th Quarter Sampling Event
28-Feb-07 1200 1st Quarter Sampling Event
27-Jun-07 1800 2.3 2nd Quarter Sampling Event
15-Aug-07 1100 4.1 3rd Quarter Sampling Event
10-Oct-08 1100 4th Quarter Sampling Event
26-Mar-08 1800 2.2 lar Quarter Sampling Event
25-Jun-08 1000 2.81 2nd Quarter Sampling Event
10-Sep-08 3600 36.2 3rd Quarter Sampling Event
15-Oct-08 4200 47.8 4th Quarter Sampling Event
4-Mar-09 1100 3.2 1st Quarter Sampling Event
Date of Sample TW4-20 CHCI3 Values Nitrate Values Sampling Event
25-May-05 39000 10.1 2nd Quarter Sampling Event
1-Aug-05 3800 2.9 3rd Quarter Sampling Event
1-Dec-05 19000 1.8 4th Quarter Sampling Event
9-Mar-06 9200 3.8 1st Quarter Sampling Event
14-Jun-06 61000 9.4 2nd Quarter Sampling Event
20-Jul-06 5300 2.9 3rd Quarter Sampling Event
8-Nov-06 11000 3.5 4th Quarter Sampling Event
28-Feb-07 4400 4.2 1st Quarter Sampling Event
27-Jun-07 1800 2.3 2nd Quarter Sampling Event
15-Aug-07 5200 2.1 3rd Quarter Sampling Event
10-Oct-08 9000 5.6 4th Quarter Sampling Event
26-Mar-08 13000 0.9 1st Quarter Sampling Event
25-Jun-08 30000 7.96 2nd Quarter Sampling Event
10-Sep-08 21000 4.44 3rd Quarter Sampling Event
15-Oct-08 NS 5.51 4th Quarter Sampling Event
4-Mar-09 8200 5.1 1st Quarter Sampling Event
Date of Sample TW4-21 CHCI3 Values Nitrate Values Sampling Event
25-May-05 192 14.6 2nd Quarter Sampling Event
1-Aug-05 78 10.1 3rd Quarter Sampling Event
1-Dec-05 86 9.6 4th Quarter Sampling Event
9-Mar-06 120 8.5 1st Quarter Sampling Event
14-Jun-06 130 10.2 2nd Quarter Sampling Event
20-Jul-06 106 8.9 3rd Quarter Sampling Event
8-Nov-06 12.5 5.7 4th Quarter Sampling Event
28-Feb-07 160 8.7 1st Quarter Sampling Event
27-Jun-07 300.0 8.6 2nd Quarter Sampling Event
15-Aug-07 140 8.6 3rd Quarter Sampling Event
10-Oct-07 120 8.3 4th Quarter Sampling Event
26-Mar-08 380 14.3 1st Quarter Sampling Event
25-Jun-08 160 8.81 2nd Quarter Sampling Event
10-Sep-08 120 7.57 3rd Quarter Sampling Event
15-Oct-08 170 8.0 4th Quarter Sampling Event
11-Mar-09 180 8.3 1st Quarter Sampling Event
Date of Sample TW4-22 CHCI3 Values Nitrate Values Sampling Event
25-May-05 340 18.2 2nd Quarter Sampling Event
1-Aug-05 290 15.7 3rd Quarter Sampling Event
1-Dec-05 320 15.1 4th Quarter Sampling Event
9-Mar-06 390 15.3 1st Quarter Sampling Event
06/14/06 280 14.3 2nd Quarter Sampling Event
07/20/06 864 14.5 3rd Quarter Sampling Event
11/08/06 350 15.9 4th Quarter Sampling Event
28-Feb-07 440 20.9 1st Quarter Sampling Event
06/27/07 740 19.3 2nd Quarter Sampling Event
Aug-15-07 530 19.3 3rd Quarter Sampling Event
Oct-10-08 440 18.8 4th Quarter Sampling Event
03/26/08 1400 39.1 1st Quarter Sampling Event
06/25/08 1200 41.9 2nd Quarter Sampling Event
10-Sep-08 6300 38.7 3rd Quarter Sampling Event
15-Oct-08 630 36.3 4th Quarter Sampling Event
03/11/09 390 20.7 1st Quarter Sampling Event
MW
4
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