DRC-2010-006187 - 0901a068801e458e

DENISO
MINES
Sent VIA Federal Express
November 29,2010
DRC-2010-006187
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Denison IMInes (USA) Corp.
1050 17th street. Suite 950
Denver, CO 80265
USA
Tel: [phone]
Fax: [phone]
www.denisonmine«,com
Mr. Rusty Lundberg
Co-Executive Secretary
Utah Water Quality Board
Utah Department of Environmental QuaUty
195 North 1950 West
P.O. Box 144810
Salt Lake City, UT 84114-4820
Re: Transmittal of Annual Seeps and Springs Monitoring Report
Groundwater Quality Discharge Permit UGW370004 White Mesa Uranium Mill
Dear Mr. Lundberg:
Enclosed are two copies ofthe White Mesa Uranium Mill Armual Seeps and Sprmgs Monitoring
Report for 2010 as required by the Groundwater QuaUty Discharge Permit UGW370004, as well as
two CDs each containing a word searchable electronic copy of the report.
If you should have any questions regarding this report please contact me.
Yours very truly,
''VENISON MINES (USA) CORP.
Jo Ann Tischier
Director, Compliance and Permitting
CC: Ron F. Hochstein
David C. Frydenlund
Harold R. Roberts
David E. Turk
Kathy Weinel
White Mesa Uranium Mill
2010 Annual Seeps and Springs Sampling Report
State of Utah
Groundwater Discharge Permit No. UGW370004
Prepared by:
Denison Mines (USA) Corp.
1050 17th Street, Suite 950
Denver CO 80265
November 29,2010
Contents
1.0 INTRODUCTION .................................................................................................................................. 1
2.0 SAMPLING EVENTS ........................................................................................................................... 1
2.1 July 2009 Sampling ............................................................................................................................. 1
2.2 Repeat Visits to Dry Seeps and Springs ............................................................................................. 1
2.3 November 2010 Sampling ................................................................................................................... 1
2.4 Sampling Procedures ........................................................................................................................... 2
2.5 Field Data ............................................................................................................................................ 3
2.6 Field QC Samples ............................................................................................................................... 3
3.0 SEEPS AND SPRINGS SURVEY AND CONTOUR MAP .................................................................. 3
4.0 QUALITY ASSURANCE AND QUALITY CONTROL ..................................................................... .4
4.1 Laboratory Results .............................................................................................................................. 4
4.2 DATA EVALUATION ....................................................................................................................... 4
4.3 Adherence to Sampling Plan and Permit Requirements ..................................................................... 5
4.4 Analyte Completeness Review ........................................................................................................... 5
4.5 Data Validation ................................................................................................................................... 5
4.5.1 Field Data QAJQC Evaluation ..................................................................................................... 6
4.5.2 Holding Time Evaluation ............................................................................................................. 6
4.5.3 Laboratory Receipt Temperature Check ...................................................................................... 6
4.5.4 Analytical Method Check ............................................................................................................ 6
4.5.5 Reporting Limit Evaluation .......................................................................................................... 6
4.5.6 Trip Blank Evaluation .................................................................................................................. 7
4.5.7 QAJQC Evaluation for Sample Duplicates .................................................................................. 7
4.5.8 Radiologies Counting Error ......................................................................................................... 7
4.5.9 Laboratory Matrix QC Evaluation ............................................................................................... 8
5.0 EVALUATION OF ANALYTICAL DATA ......................................................................................... 9
5.1 Evaluation of Analytical Results ....................................................................................................... 10
5.1.1 Ruin Spring ................................................................................................................................ 10
5.1.2 Cottonwood Seep ....................................................................................................................... 10
5.1.3 Westwater Seep .......................................................................................................................... 10
5.1.4 Entrance Spring .......................................................................................................................... 11
6.0 CORRECTIVE ACTION REPORT ..................................................................................................... 11
6.1 Identification and Definition of the Problem .................................................................................... 11
6.2 Assignment ofResponsibil ity for Investigating the Problem ........................................................... I I
6.3 Investigation and Determination of Cause of tile Problem ............................................................... II
6.4 Determination of a Corrective Action to ·Iiminate the Problem ...................................................... 12
6.5 Assigning and Accepting Responsibility for Implementing the Corrective Action .......................... ]2
6.6 Implementing the Corrective Action and Evaluating Effectiveness ................................................. 12
6.7 Verifying That the Corrective Action Has Eliminated the Problem ................................................. 12
7.0 ELECTRONIC DATA FILES AND FORMAT ................................................................................... 12
8.0 SIGNATURE AND CERTIFICATION ............................................................................................... 13
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Table 1
Table 2A
Table 2B
Table 2C
Table 2D
LIST OF TABLES
Summary of Seeps and Springs Sampling for 20 1 a
Detected Constituents and Comparison to Historic Values and Mill Site
Monitoring Wells -Ruin Spring
Detected Constituents and Comparison to Historic Values and Mill Site
Monitoring Wells -Cottonwood Seep
Detected Constituents and Comparison to Historic Values and Mill Site
Monitoring Wells -Westwater Seep
Detected Constituents and Comparison to Historic Values and Mill Site
Monitoring Wells -Entrance Spring
INDEX OF TABS
Tab A Seeps and Springs Field Data Sheets and Photographic Documentation -2010
Tab B Field Parameter Measurement Data
Tab C Survey Data and Contour Map
Tab D Analytical Laboratory Data
Tab E Quality Assurance and Data Validation Tables
E-l Holding Time Evaluation
E-2 Laboratory Receipt Temperature Check
E-3 Analytical Method Check
E-4 Reporting Limit Evaluation
E-5 Trip Blank Evaluation
E-6 QAlQC Evaluation for Sample Duplicates
E-7 Radiologies Counting Error
E-8 Laboratory Matrix QC Evaluation
Tab F CSV Transmittal
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2010 ANNUAL SEEPS AND SPRINGS SAMPLING REPORT
1.0 INTRODUCTION
This is the 2010 Annual Seeps and Springs Sampling Report for the Denison Mines (USA) Corp.
("Denison") White Mesa Mill (the "Mill"), as required under Part LF.7 of the Mill's State of
Utah Groundwater Discharge Permit No. UGW370004 (the "Permit") and Section 6.0 of the
Mill's Sampling Plan for Seeps and Springs in the Vicinity of the White Mesa Uranium Mill,
Revision: 0, March 17,2009 (the "Sampling Plan").
2. 0 SAMPLING EVENTS
Seeps and springs which were identified near the Mill in the 1978 Environmental Report (Plate
2.6-10, Dames and Moore, January 30, 1978) are to be sampled annually in accordance with the
Sampling Plan and Part LE.6 of the Permit. The Sampling Plan specifies the following sample
locations: Corral Canyon Seep, Corral Springs, Ruin Spring, Cottonwood Seep, Westwater Seep
and Entrance Spring.
2.1 July 2009 Sampling
In accordance with the Sampling Plan, the State of Utah Department of Environmental Quality
("UDEQ") was notified of the sampling. The UDEQ representative collected a "split" sample on
July 7, 2010 from each of Ruin Spring and Cottonwood Seep. Westwater Seep and Entrance
Spring were sampled by Denison only on July 6, 2010. In addition to these samples, duplicate
samples were collected by Denison from the Ruin Spring and Entrance Spring locations. For the
July sampling event the duplicate is identified as "Back Spring" and for the November sampling
event the duplicate is identified as "Orvin Spring".
2.2 Repeat Visits to Dry Seeps and Springs.
During the July 6, 2010 sampling event, Corral Canyon Seep and Corral Springs were dry, were
not able to be sampled and did not warrant development opportunities with limited hand tool
excavation at that time. Additional visits were made July 20, 2010 and August 10, 2010 to
determine if development opportunities with hand tool excavation would yield enough water for
sampling. The additional two visits did not indicate any changes in conditions which indicated
that development would be successful.
2.3 November 2010 Sampling
During the preparation of this annual report it was noted by Denison's Quality Assurance ("QA")
Manager that tetrahydrofuran ("THF") was inadvertently omitted from the sample suites for the
July samples. Denison contacted the UDEQ Representative to discuss the omission of this
analyte. Denison noted in these discussions that the Permit requires annual sampling but does
not specify a time period within the year for sample collection. The Sampling Plan, however,
specifies that the annual seeps and springs samples be collected between May 1 and July 15 of
each year to alleviate the potential for surface water influence occasioned by late summer
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"monsoon" conditions. Since the collection of samples for THF would occur in November it was
suggested that surface water influence from summer weather patterns would be minimal.
Denison proposed collection of the THF samples immediately (November 2010) and expedited
analysis so that the report submission schedule could be met. The UDEQ Representative
provided verbal concurrence with the deviation from the Sampling Plan requirement to collect
the samples between May 1, and July 15. As previously stated, the Pennit does not require the
collection of the seeps and springs within any specified time period within the year. Accordingly,
a second set of samples were collected from Entrance Spring, Cottonwood Seep, Ruin Spring,
Orvin Spring (duplicate of Ruin Spring) and Westwater Seep on November 3,2010.
2.4 Sampling Procedures
Samples were collected and analyzed for the parameters listed in Table 2 of the Pennit. Flow
was sufficient at Entrance Spring, Cottonwood Seep, Ruin Spring and, after development work
of Westwater Seep, to allow for all containers to be filled without the need for repeated
samplings at later times except as noted to address the THF omission noted in Section 2.3.
Sampling procedures for each seep or spring are determined by the site location and access.
Sampling procedures are described below.
Ruin Spring
In the case of Ruin Spring, sample bottles for all analytes except gross alpha and heavy metals
were filled directly from the spring out-flow which is a pipe. Heavy metals and gross alpha were
collected by means of a peristaltic pump and delivered directly to the sample containers through
a 0.45 micron filter. The appropriate preservatives for the analytical technique were added to the
samples.
Westwater Seep
For Westwater Seep, it was not possible to locate the generator close enough to the seep to utilize
the peristaltic pump. All of the sample containers were filled directly from the water source
except for the containers for gross alpha and heavy metals. For the gross alpha and heavy metals
samples, a clean previously unused one gallon sample jug was filled by dipping it into the
excavated pool at Westwater Seep. The peristaltic pump was used to transfer the samples from
the one gallon jug directly to the sample containers through a 0.45 micron filter. The appropriate
preservatives for the analytical technique were added to the samples.
Cottonwood Seep and Entrance Spring
For Cottonwood Seep and Entrance Spring the samples for all analytes except gross alpha and
heavy metals were collected by means of a peristaltic pump and delivered directly to the sample
containers. In the case of the samples for heavy metals and gross alpha, the samples were
delivered by a peristaltic pump directly to the sample containers through a 0.45 micron filter. All
samples were preserved by the addition of the appropriate preservative for the analytical
technique.
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All of the THF samples collected in November 2010 were collected as "grab" samples by filling
the sample containers directly from the source.
In all cases, it was not necessary to use a clean stainless steel ladle to collect water until a
sufficient volume is contained in the ladle for transfer to the sample bottles, as contemplated by
Section 5.0 of the Sampling Plan. The sampling strategy using a ladle anticipates low flow
conditions which preclude direct sampling or using the peristaltic pump for sampling. The
conditions during this sampling event were such that the ladle was unnecessary.
The tubing on the peristaltic pump that comes into contact with the sample water was disposed of
between each sampling. As a result, no equipment required decontamination, and no rinsate
samples were collected.
All samples were stored at 4° C or less prior to laboratory analysis. Samples were received by
the Mill's contract laboratories, Energy Laboratories ("EL") and America West Analytical
Laboratories ("AWAL") at 3° C and 3.4 ° C respectively.
2.5 Field Data
Attached under Tab A are copies of all of the field data sheets recorded in association with the
annual seeps and springs monitoring program. Photographic documentation of the sampling
sites is also included in Tab A. Sampling dates are listed in Table 1 and field parameters
collected during the sampling program are included in Tab B.
2.6 Field QC Samples
The field Quality Control ("QC") samples generated during this sampling event included one
duplicate per sampling event and one trip blank per shipment to each laboratory which received
samples for Volatile Organic Compounds (VOCs). The duplicate samples (Back Spring and
Orvin Spring) were submitted blind to the analytical laboratory. As previously stated, no rinsate
blanks were collected during this sampling event as only disposable equipment was used for
sample collection.
3.0 SEEPS AND SPRINGS SURVEY AND CONTOUR MAP
Part I.F.7(c) ofthe Permit requires that a water table contour map that includes the elevations for
each well at the facility and the elevations of the phreatic surfaces observed for each of the seeps
and springs sampled be submitted with this annual report. Tab C includes a contour map which
meets the requirements specified in the Permit. The contour map includes the corrected survey
data from December 2009 as discussed below.
Part I.F. 7 (g) of the Permit requires that survey data for the seeps and springs be submitted. The
Permit specifies that the survey data be collected prior to the collection of samples. UDEQ
previously clarified that the requirement to submit survey data applies only to the first sampling
event and not on an annual basis. The survey data submitted with the first annual seeps and
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springs report in early December 2009, which was performed by a State of Utah licensed
surveyor was found to be incorrect. In response to the incorrect data, Denison completed another
survey of the seeps and springs in mid-December 2009 by a different State of Utah licensed
surveyor who had performed a number of surveys at the site in the past and was therefore
familiar with the site. Those survey data are included in Tab C. Additionally, in response to Part
I.H.10 (a) of the Permit, Denison verified the seeps and springs survey data in July 2010 by re-
surveying Westwater Seep, Cottonwood Seep, and Ruin Spring by the same State of Utah
licensed surveyor used for the mid-December 2009 survey. The concurrence between all
December 2009 surveyed data and the nearly identical results obtained in July 2010, confirms
the elevations of the seeps and springs reported herein. The confirmed December, 2009 seep and
spring survey data shown in Tab C will be used in all future reporting where seep and spring
locations and elevations are relevant.
A full discussion of the verification of the December 2009 survey data and the hydrogeology of
seeps and springs at the margins of White Mesa in the vicinity of the Mill and the relationship of
these seeps and springs to the hydrogeology of the site, in particular to the occurrence of a
relatively shallow perched groundwater zone beneath the site, is contained in Hydrogeology of
the Perched Groundwater Zone and Associated Seeps and Springs Near the White Mesa
Uranium Mill Site, dated November 12,2010, prepared by Hydro Geo Chern, Inc. and submitted
to the Executive Secretary on November 15,2010.
4.0 QUALITY ASSURANCE AND QUALITY CONTROL
4.1 Laboratory Results
All analytical results are provided by one of the Mill's two contract analytical laboratories
Energy Laboratories ("EL") or America West Analytical Laboratories ("A WAL").
The laboratories utilized during this investigation were certified under the Environmental Lab
Certification Program administered by UDEQ Bureau of Lab Improvement for the analyses they
completed.
The analytical data as well as the laboratory QAlQC summaries are included under Tab D.
4.2 DATA EVALUATION
The Permit requires that the annual seeps and springs sampling program be conducted in
compliance with the requirements specified in the Mill's approved White Mesa Uranium Mill
Groundwater Monitoring Quality Assurance Plan ("QAP"), the approved Sampling Plan and the
Permit itself. To meet this requirement the data validation completed for the seeps and springs
sampling program as discussed in this section utilized the requirements outlined in the QAP, the
Permit and the approved Sampling Plan as necessary. Where the requirements are in conflict,
the hierarchy of requirements are: the Permit, the Sampling Plan and then the QAP. The Mill
QA Manager performed a QAlQC review to confirm compliance of the monitoring program with
requirements of the Permit, QAP and Sampling Plan. As required in the QAP, data QA includes
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preparation and analysis of QC samples in the field, review of field procedures, an analyte
completeness review, and quality control review of laboratory data methods and data.
Identification of field QC samples collected and analyzed is provided in Section 4.5.1.
Discussion of adherence to the Sampling Plan is provided in Section 4.3. Analytical
completeness review results are provided in Section 4.4. The steps and tests applied to check
laboratory data QAlQC are discussed in Sections 4.5.1 through 4.5.9 below.
The analytical laboratories have provided summary reports of the analytical QAlQC
measurements necessary to maintain conformance with National Environmental Laboratory
Accreditation Conference ("NELAC") certification and reporting protocol. The analytical
laboratory QAlQC Summary Reports, including copies of the Mill's Chain of Custody and
Analytical Request Record forms for each set of analytical results, follow the analytical results
under Tab D. Results of review of the laboratory QAlQC information are provided under Tab E
and discussed in Section 4.5 below.
4.3 Adherence to Sampling Plan and Permit Requirements
On a review of adherence by Mill personnel to the Permit, the QA Manager observed that
QAlQC requirements established in the QAP were being adhered to and that the Permit
requirements were implemented as required except as noted below.
On a review of adherence by Mill personnel to the Sampling Plan, the QA Manager observed
that QAlQC requirements established in the QAP were being adhered to and that the Sampling
Plan was implemented except as noted below.
Sampling procedures varied from those contemplated in the Sampling Plan as follows. A
stainless steel ladle was not necessary, either due to adequate flow and the collection of samples
directly into the sample containers, or due to ability to use a peristaltic pump. In addition, THF
was inadvertently omitted from the sample suite during the July sampling. Samples for THF
were collected in November, which is outside of the sampling window specified in the Sampling
Plan. It is important to note that the Permit does not specify a sampling window for the
collection of the annual seeps and springs samples.
Field parameter measurements collected during this sampling event included pH, conductivity,
temperature, redox potential (July samples only), and turbidity. The Permit and the Sampling
Plan only require the collection of pH, conductivity and temperature. The deviation resulted in
the collection of additional data, and as such there is no effect on the usability of the data.
4.4 Analyte Completeness Review
All analyses required by the Permit Table 2 were completed.
4.5 Data Validation
The QAP and the Permit identify the data validation steps and data quality control checks
required for the seeps and springs monitoring program. Consistent with these requirements, the
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QA Manager performed the following evaluations: a field data QAJQC evaluation, a receipt
temperature check, a holding time check, an analytical method check, a reporting limit check, a
trip blank check, a QAJQC evaluation of sample duplicates, a gross alpha counting error
evaluation and a review of each laboratory's reported QAJQC information. Each evaluation is
discussed in the following sections. Data check tables indicating the results of each test are
provided under Tab E.
4.5.1 Field Data QAlQC Evaluation
The QA Manager performs a review of all field recorded parameters to assess their adherence
with QAP, Sampling Plan and Permit requirements. The assessment involved review of the Field
Data sheets. Review of the Field Data Sheets noted that all requirements for field data collection
were met except as set out below.
4.5.2 Holding Time Evaluation
QAP Table 1 identifies the method holding times for each suite of parameters. Sample holding
time checks are provided under Tab E. All samples were received and analyzed within the
required holding time.
4.5.3 Laboratory Receipt Temperature Check
Chain of Custody sheets were reviewed to confirm compliance with the Sampling Plan
requirement that samples be received at 4°C or lower. Sample receipt temperature checks are
provided under Tab E. All samples were received within the required temperature limit. The
QA Manager noted that the sample receipt temperature requirement in the QAP is 6°C or lower.
Denison intends to prepare a revision to the Sampling Plan to change the sample receipt
temperature requirement to 6°C to be consistent with the QAP.
4.5.4 Analytical Method Check
All analytical methods reported by both laboratories were checked against the required methods
specified in Table 1 ofthe QAP. Analytical method check results are provided in Tab E.
4.5.5 Reporting Limit Evaluation
Reporting limits utilized by the laboratory were required not to exceed the Ground Water Quality
Standards set out in Table 2 of the Permit. For TDS, sulfate and chloride, for which Ground
Water Quality Standards are not set out in Table 2 of the Permit, reporting limits of no greater
than 10 mg/L, 1 mg/L and 1 mg/L, respectively, were used. All analytical method reporting
limits reported by both laboratories were checked against the reporting limits specified in the
Permit. Reporting limit evaluations are provided in Tab E. All analytes were measured and
reported to the required reporting limits except that the sulfate sample results had the reporting
limit raised for samples due to sample dilution necessary to accommodate the sulfate
concentrations in the samples. In all cases the reported value for the analyte was higher than the
increased detection limit.
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4.5.6 Trip Blank Evaluation
All trip blank results were reviewed to identify any blank contamination. Trip blank evaluations
are provided in Tab E. All trip blank results associated with the samples were less than reporting
limit for all VOCs. It should be noted that a separate trip blank accompanied the samples
collected November 3, 2010 for THF.
4.5.7 QAlQC Evaluation for Sample Duplicates
Section 9.1.4 a) of the QAP states that the Relative Percent Difference ("RPD") will be
calculated for the comparison of duplicate and original field samples. The QAP acceptance limits
for RPDs between the duplicate and original field sample is less than or equal to 20% unless the
measured results (described as activities in the QAP) are less than 5 times the required detection
limit. This standard is based on the EPA Contract Laboratory Program National Functional
Guidelines for Inorganic Data Review, February 1994, 9240.1-05-01 as cited in the QAP. The
RPDs are calculated for all duplicate pairs for all analytes regardless of whether or not the
reported concentrations are greater than 5 times the required detection limits; however, data will
be considered noncompliant only when the results are greater than 5 times the required detection
limit and the RPD is greater than 20%. RPDs are also only calculated when both the sample and
the duplicate report a detection for any given analyte. If only one of the pair reports a detection,
the RPD cannot be calculated. The additional duplicate information is provided for information
purposes.
All duplicate results were within a 20% RPD in the seeps and springs samples. Results of the
RPD test are provided under Tab E.
4.5.8 Radiologics Counting Error
Section 9.14 of the QAP requires that all gross alpha analysis reported with an activity equal to
or greater than the Groundwater Compliance Limits ("GWCL") set out in the Permit (for the
seeps and springs samples the Groundwater Quality Standards [" GWQS"] will be used), shall
have a counting variance that is equal to or less than 20% of the reported activity concentration.
An error term may be greater than 20% of the reported activity concentration when the sum of
the activity concentration and error term is less than or equal to the GWQS.
Section 9.4 of the QAP also requires a comparability check between the sample and field
duplicate sample results utilizing the formula provided in the text.
Results of routine radiologic sample QC are provided under Tab E. All seeps and springs
radiologic sample results were nondetect, and as such the counting error requirement and the
duplicate comparability check specified in the QAP do not apply.
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4.5.9 Laboratory Matrix QC Evaluation
Section 9.2 of the QAP requires that the laboratory's QAlQC Manager check the following items
in developing data reports: (1) sample preparation information is correct and complete, (2)
analysis information is correct and complete, (3) appropriate analytical laboratory procedures are
followed, (4) analytical results are correct and complete, (5) QC samples are within established
control limits, (6) blanks are within QC limits, (7) special sample preparation and analytical
requirements have been met, and (8) documentation is complete. In addition to other laboratory
checks described above, Denison's QA Manager rechecks QC samples and blanks (items (5) and
(6)) to confirm that the percent recovery for spikes and the relative percent difference for spike
duplicates are within the method-specific required limits, or that the case narrative sufficiently
explains any deviation from these limits. Results of this quantitative check are provided under
Tab E. All lab QA/QC results from both EL and A W AL met these requirements except as
described below.
A significant number of the seeps and springs samples had the reporting limit raised for multiple
analytes due to matrix interference and/or sample dilution. In all cases where the detection limit
was increased, the concentration for the analyte was higher than the increased detection limit.
The check samples included at least the following: a method blank, a laboratory control spike
("LCS"), a matrix spike ("MS") and a matrix spike duplicate ("MSD"), or the equivalent, where
applicable. It should be noted that:
• Laboratory fortified blanks are equivalent to LCSs.
• Laboratory reagent blanks are equivalent to method blanks.
• Post digestion spikes are equivalent to MSs.
• Post digestion spike duplicates are equivalent to MSDs.
• For method E900.1, used to determine gross alpha, a sample duplicate was used instead
ofaMSD.
All qualifiers, and the corresponding explanations reported in the QAlQC Summary Reports for
any of the check samples for any ofthe analytical methods, were reviewed by the QA Manager.
The QAP Section 8.1.2 requires that a MS/MSD (referred to as a Duplicate Spike [Matrix Spike]
in the QAP) pair be analyzed with each analytical batch. The QAP does not specify acceptance
limits for the MS/MSD pair, and the QAP does not specify that the MS/MSD pair be prepared on
Denison samples only. Acceptance limits for MS/MSDs are set by the laboratories. The review
of the information provided by the laboratories in the data packages verified that the QAP
requirement to analyze a MS/MSD pair with each analytical batch was met. While the QAP
does not require it, the recoveries were reviewed for compliance with each laboratory's
established acceptance limits. The QAP does not require this level of review and the results of
this review are provided for information only.
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The information from the Laboratory QNQC Summary Reports indicates that the MS/MSDs
recoveries and the associated RPDs for all seeps and springs samples were within acceptable
laboratory limits for all regulated compounds as indicated in Tab E.
The QAP specifies that surrogate compounds shall be employed for all organic analyses, but the
QAP does not specify acceptance limits for surrogate recoveries. The analytical data associated
with the routine quarterly sampling met the requirement specified in the QAP. The information
from the Laboratory QNQC Summary Reports indicates that the surrogate recoveries for all
seeps and springs samples were within acceptable laboratory limits for all surrogate compounds
except as indicated in Tab E. There was one surrogate recovery outside of acceptance limits for
the VOC analyses. The surrogate recovery that was outside of acceptance limits was above the
upper limit or that had a high recovery, which indicates a high bias to the individual sample
results. A high bias means that reported results will tend to be higher than actual levels. The
sample result with the high surrogate recovery was nondetect for all VOC analytes. There is no
effect on the quality or usability of the data, because the sample results were high-biased
nondetects and because there are multiple surrogates added to each sample, and all other
surrogates were within limits. Furthermore, there are no QAP requirements for surrogate
recoveries.
The QAP Section 8.1.2 requires that each analytical batch shall be accompanied by a reagent
blank. Contamination detected in analysis of reagent blanks/method blanks will be used to
evaluate any analytical laboratory contamination of environmental samples. The QAP does not
specify the process for evaluation of reagent/method blanks. For consistency, the QAP-required
evaluation criteria for rinsate blanks will be used. The QAP criteria for rinsate blanks states that
nonconformance will exist when blanks are not within an order of magnitude of the sample
results. Six analytes were reported in the reagent/method blanks from EL. Reagent/method
blank results are included in Tab E. In all cases the reagent/method blank results were less than
an order of magnitude relative to the positive sample results. The QAP requirement to analyze a
reagent/method blank with each batch and evaluate the results has therefore been completed as
required.
5.0 EVALUATION OF ANALYTICAL DATA
Analytical Results
As previously stated, all samples were analyzed for the groundwater compliance parameters
found on Table 2 of the Permit. In addition to these laboratory parameters, the pH, temperature,
conductivity, redox potential (although not required Redox was collected for the July data only)
and turbidity of each sample was measured and recorded in the field.
The samples were not analyzed for semivolatile organic compounds. Although the Sampling
Plan currently states that the samples will also be analyzed for semi volatile organic compounds,
the Permit was revised to eliminate the requirement for semivolatile analysis.
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5.1 Evaluation of Analytical Results
The results of the July 2010 and November 2010 sampling event show no evidence of Mill
influence in the water produced by the seeps and springs sampled. The lack of Mill influence on
seeps and springs is indicated by the fact that the parameters detected are within the ranges of
concentrations for all of the on-site monitoring wells and for available historic data for the seeps
and springs themselves. For those detected analytes, concentrations are shown in Tables 2A, 2B,
2C, and 2D. The data are compared to available historic data for each seep and spring as well as
to on-site monitoring well data. Specific discussions about each seep or spring are included
below.
5.1.1 Ruin Spring
No VOCs or radiologies were detected. Metals and major ions were the only analytes detected.
The metals detections were minimal with only molybdenum, selenium and uranium having
positive detections. A comparison of the 2009 data to the 2010 data shows that the
concentrations of most detected analytes remained approximately the same with only minor
changes within the limits of normal analytical deviation. All detected concentrations are
significantly below the upper range of historic values for the on-site monitoring wells. A
comparison of the 2010 data to the average values reported in Ruin Spring from 2003 -2004
shows that all detected analytes are below the historic average. Overall, the data reported for
Ruin Spring are typical for a surface water sample with no indication of Mill influence.
5.1.2 Cottonwood Seep
No VOCs or radiologics were detected. Metals and major ions were the only analytes detected.
The metals detections were minimal with only uranium having positive detections. A
comparison of the 2009 data to the 2010 data shows that the concentrations of most detected
analytes remained approximately the same with only minor changes within the limits of normal
analytical deviation. All detected concentrations are significantly below the upper range of
historic values for the on-site monitoring wells. A comparison of the 2010 data to the average
values reported in Cottonwood Seep from 1977 -1982 shows that all detected analytes are below
the historic average except chloride, sulfate, and total dissolved solids ("TDS"). The differences
are not significant and are most likely due to differences in the time of year sampled or normal
fluctuations due to flow rates or seasonal variations due to annual precipitation. Overall, the data
reported for Cottonwood Seep are typical for a surface water sample with no indication of Mill
influence.
5.1.3 Westwater Seep
No VOCs or radiologies were detected. Metals and major ions were the only analytes detected.
The metals detections were minimal with only iron, manganese, molybdenum, and uranium
having positive detections. A comparison of the 2009 data to the 2010 data shows that the
concentrations of detected analytes remained approximately the same except for potassium,
manganese, and uranium which increased. The concentrations of potassium, manganese, and
uranium did increase, but they are below the upper range of historic values for the on-site
10
N:\Required Reports\Seeps and Springs Sampling Report\20l 0\2010 Annual Report -text.docx
monitoring wells. The differences are not significant and are most likely due to differences in
the time of year sampled or normal fluctuations due to flow rates or seasonal variations due to
annual precipitation. Overall, the data reported for Westwater Seep are typical for a surface
water sample with no indication of Mill influence.
5.1.4 Entrance Spring
No VOCs or radiologies were detected. Metals and major ions were the only analytes detected.
The metals detections were minimal with only manganese, selenium and uranium having
positive detections. A comparison of the 2009 data to the 2010 data shows that the
concentrations of most detected analytes remained approximately the same with only minor
changes within the limits of normal analytical deviation. All detected concentrations are
significantly below the upper range of historic values for the on-site monitoring wells. Overall,
the data reported for Entrance Spring are typical for a surface water sample with no indication of
Mill influence.
6.0 CORRECTIVE ACTION REPORT
Necessary corrective actions identified during the current monitoring period are described below,
in accordance with Part LF .1.e of the Permit.
6.1 Identification and Definition of the Problem
The problems identified were:
• Sampling procedures described in the Sampling Plan do not reflect all potential site
conditions (sampling when a ladle is not needed due to adequate volumes) and need to
include additional sampling strategies (collection of samples using a peristaltic pump) to
meet differing site conditions.
• THF samples were inadvertently omitted from the original sample suites collected in July
2010.
6.2 Assignment of Responsibility for Investigating the Problem
The problems have been investigated by the QA Manager.
6.3 Investigation and Determination of Cause of the Problem
Sampling Procedures
Sampling procedures used were acceptable. The Sampling Plan does not reflect the differing site
conditions at different seeps/springs and needs to be updated to provide flexibility for differing
site conditions. Proposed revisions will include, but are not limited to, changing the specified
sampling procedures for the seeps and springs as well as the addition of a peristaltic pump for
sample collection. Additionally, there are several inaccuracies specified in the Sampling Plan
11
N:\Required Reports\Seeps and Springs Sampling Report\2010\2010 Annual Report -text.docx
which need to be corrected (collection of semivolatiles, receipt temperature requirements,
filtered parameter list etc.).
THF Omission
THF was inadvertently omitted from the July sample suite. THF was omitted from the July
sampling suite because the Mill personnel did not adequately review the Sampling Plan prior to
implementation. Additionally, the Sampling Plan is not explicit in its delineation of the specific
analyses which are required.
6.4 Determination of a Corrective Action to Eliminate the Problem
Sampling Procedures
Revisions to the Sampling Plan will be proposed to allow flexibility to accommodate differing
site conditions and correct the above noted inaccuracies.
THF Omission
Revisions to the Sampling Plan will be proposed as noted in the above corrective actions to
address the inaccuracies as well as to provide flexibility in the sampling procedures delineated.
In addition to the proposed text revision, revisions to the field data form will be proposed to
include a list of analytes to be collected during each annual sampling event. The Mill personnel
will be retrained on the requirements of the revised Sampling Plan.
6.5 Assigning and Accepting Responsibility for Implementing the Corrective Action
It will be the responsibility of the Director, Compliance and Permitting to implement the
corrective action.
6.6 Implementing the Corrective Action and Evaluating Effectiveness
Implementation of the corrective action will follow DRC approval of a revised Sampling Plan.
6.7 Verifying That the Corrective Action Has Eliminated the Problem
Verification of all of the corrective actions will occur after the next annual sampling event in
2011.
7.0 ELECTRONIC DATA FILES AND FORMAT
Denison has provided to the Executive Secretary electronic copies of all laboratory results from
groundwater quality monitoring conducted during the quarter in Comma Separated Values
("CSV"), from the EL data; and in Electronic Data Deliverable ("EDD") format from the A W AL
data. A copy of the transmittal e-mail is included under Tab F.
12
N:\Required Reports\Seeps and Springs Sampling Report\2010\2010 Annual Report -text.docx
8.0 SIGNATURE AND CERTIFICATION
This document was prepared by Denison Mines (USA) Corp. on November 29,2009.
Certification
I certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the
information, thd,' nfonnation submitted is, to the best of my knowledge and belief, true, accurate,
and com lete. am aware that there are significant penalties for submitting false information,
includi the sibility of fine and imprisonment for knowing violations.
Da
13
N:\Required Reports\Seeps and Springs Sampling Report\201O\20l0 Annual Report -text.docx
Tables
T bI 1 S a e : ummary 0 fS eeps an dS . iprmgs S r fi 2010 ami lmg or
Work Order Date of Lab
Location Sample Date No.lLab Set ID Report
EL = C10070314 EL = 7/29110
Entrance Spring 7/6/10, 11/3/10 AWAL= 1011115 AWAL= 11110/10
EL = CI0070314 EL = 7/29110
Cottonwood Seep 7/7/10, 1113/10 AWAL= 1011115 AWAL= 11110110
Back Spring/Orvin Spring EL = C10070314 EL = 7/29/10
(Duplicate of Ruin Spring) 7/7110, 11/3/10 AWAL= 1011115 AWAL == 11110110
EL = C10070314 EL = 7/29/10
Ruin Spring 7/7/10, 1113110 AWAL== 1011115 AWAL = 11110110
EL = C10070314 EL = 7/29/10
Westwater Seep 7/8110, 11/3110 AWAL= 1011115 AWAL = 11110110
Table2A Detected Constituents and Comparison to Historic Values and Mill Site Monitoring Wells
Ruin Spring
Range of Average
Historic Values for
Constituent 2009 2010 Monitoring Wells I * Ave 2003-20042
Major Ions (mg/I)
Carbonate <1 <1 ----
Bicarbonate 233 254 ----
Calcium 151 136 ----
Chloride 28 23 ND -213 27
Fluoride 0.5 0.53 NO -1.3 0.6
Magnesium 32.3 29.7 ----
Nitrogen-Ammonia 0.09 <0.05 ----
Nitrogen-Nitrate 1.4 1.7 ----
Potassium 3.3 3.07 ----
Sodium 104 93.4 ---
Sulfate 528 447 NO -3455 521
pH (s.u.) 7.85 7.51 6.7 -8.9 7.9
TOS 1010 903 1019 -5548 1053
Metals (ug/I)
Arsenic <5 <5 ----
Beryllium <0.5 < 0.5 ---
Cadmium <0.5 <0.5 NO -4.78 0.01
Chromium <25 <25 ----
Cobalt <10 <10 ----
Copper <10 <10 ----
Iron <30 <30 NO -7942 25
Lead <1.0 <1.0 ----
Manganese <10 <10 NO -34,550 5
Mercury <0.5 <0.5 ----
Molybdenum 17 17 ----
Nickel <20 <20 NO -61 0.05
Selenium 12.2 10 NO -106.5 12.1
Silver <10 <10 ----
Thallium <0.5 <0.5 ----
Tin <100 <100 ----
Uranium 9.11 8.47 NO -59.8 10
Vanadium <15 <15 ----
Zinc <10 <10 ----
Radiologies (pC ill)
Gross Alpha <0.2 <0.2 ND-36 0.28
Ruin Spring
Range of Average
Historic Values for
Constituent 2009 2010 Monitoring Wells 1 * Ave 2003-20042
VOCS (ug/L)
Acetone <20 <20 ----
Benzene <1.0 <1.0 ----
Carbon tetrachloride <1.0 <1.0 ----
Chloroform <1.0 <1.0 ----
Chloromethane <1.0 <1.0 ----
MEK <20 <20 ----
Methylene Chloride <1.0 <1.0 ---
Naphthalene <1.0 <1.0 ---
Tetrahydrofuran <1.0 <1.0 ----
Toluene <1.0 <1.0 ----
Xylenes <1.0 <1.0 ----
I From Figure 3, Table 10 and Appendix B of the Revised Addendum, Background Groundwater
Quality Report: New Wells for Denison Mines (USA) Corp's White Mesa Mill Site, San Juan
County, Utah, April 30, 200S, prepared by INTERA, Inc. and Table 16 and Appendix D of the
Revised Background Groundwater Quality Report: Existing Wells for Denison Mines (USA)
Corp. 's White Mesa Uranium Mill Site, San Juan County, Utah, October 2007, prepared by
INTERA, Inc.
2 From Figure 9 of the Revised Addendum, Evaluation of Available Pre-Operational and Regional
Background Data, Background Groundwater Quality Report: Existing Wells for Denison Mines
(USA) Corp. 's White Mesa Mill Site, San Juan Couinty, Utah, November 16, 2007, prepared by
INTERA, Inc.
*Range of average historic values for On-Site Monitoring Wells as reported on April 30, 200S (MW·
1, MW-2, MW-3, MW-3A, MW-4, MW-S, MW-ll, MW-12, MW-14, MW-lS, MW-17,MW-lS,
MW-19, MW-20, MW-22, MW-23, MW-24, MW-2S, MW-26, MW-27, MW-2S, MW-29, MW-
30, MW-31 and MW-32)2
Table2B Detected Constituents and Comparison to Historic Values and Mill Site Monitoring Wells
Cottonwood Seep
Range of Average
Historic Values for
Constituent 2009 2010 Monitoring Wells1* Ave 1977 -1982 1
Major Ions (mg/l)
Carbonate <1 <1 ----
Bicarbonate 316 340 ----
Calcium 90.3 92.2 ----
Chloride 124 112 ND -213 31
Fluoride 0.4 0.38 ND -1.3 0.8
Magnesium 25 24.8 ----
Nitrogen-Ammonia <0.05 <0.05 ----
Nitrogen-Nitrate 0.1 <0.1 ----
Potassium 5.7 5.77 ----
Sodium 205 214 ----
Sulfate 383 389 ND -3455 230
pH (s.u.) 7.73 7.47 6.7 -8.9 7.6
TDS 1010 900 1019 -5548 811
Metals (ug/l)
Arsenic <5 <5 ----
Beryllium <0.5 <0.5 ----
Cadmium <0.5 <0.5 ND -4.78 --
Chromium <25 <25 ----
Cobalt <10 <10 ----
Copper <10 <10 ---
Iron <30 <30 ND-7942 150
Lead <1.0 <1.0 ----
Manganese <10 <10 ND -34,550 580
Mercury <0.5 <0.5 ----
Molybdenum <10 <10 ----
Nickel <20 <20 ND-61 --
Selenium <5.0 <5.0 ND -106.5 --
Silver <10 <10 ----
Thallium <0.5 <0.5 ----
Tin <100 <100 ----
Uranium 8.42 8.24 ND -59.8 --
Vanadium <15 <15 ----
Zinc <10 <10 ----
Radiologies (pCiJl)
Gross Alpha <0.2 <0.2 ND-36 7.2
VOCS (uglL)
Acetone <20 <20 ----
Benzene <1.0 <1.0 ----
Table2B Detected Constituents and Comparison to Historic Values and Mill Site Monitoring Wells
Cottonwood Seep
Range of Average
Historic Values for
Constituent 2009 2010 Monitoring Wells!/\-Ave 1977 -1982 !
Carbon tetrachloride <1.0 <1.0 ----
Chloroform <1.0 <1.0 ----
Chloromethane <1.0 <1.0 ----
MEK <20 <20 ----
Methylene Chloride <1.0 <1.0 ----
Naphthalene <1.0 <1.0 ----
Tetrahydrofuran <1.0 <1.0 ----
Toluene <1.0 <1.0 ----
Xylenes <1.0 <1.0 ----
I From Figure 3, Table 10 and Appendix B of the Revised Addendum, Background Groundwater Quality
Report: New Wells for Denison Mines (USA) Corp's White Mesa Mill Site, San Juan County, Utah, April
30,2008, prepared by INTERA, Inc. and Table 16 and Appendix D ofthe Revised Background
Groundwater Quality Report: Existing Wells for Denison Mines (USA) Corp. 's White Mesa Uranium Mill
Site, San Juan County, Utah, October 2007, prepared by INTERA, Inc.
*Range of average historic values for On-Site Monitoring Wells as reported on April 30, 2008 (MW-l,
MW-2, MW-3, MW-3A, MW-4, MW-S, MW-ll, MW-12, MW-14, MW-lS, MW-17,MW-18, MW-19,
MW-20, MW-22, MW-23, MW-24, MW-2S, MW-26, MW-27, MW-28, MW-29, MW-30, MW-31 and
MW-32)
Table2C Detected Constituents and Comparison to Historic Values and Mill Site Monitoring Wells
Westwater Seep
Range of Average Historic
Values for Monitoring
Constituent 2009 2010 Wells! *
Major Ions (mg/l)
Carbonate <1 <1 --
Bicarbonate 465 450 --
Calcium 191 179 --
Chloride 41 40 NO -213
Fluoride 0.7 0.6 Nt) -1.3
Magnesium 45.9 44.7 --
Nitrogen-Ammonia <0.05 0.5 --
Nitrogen-Nitrate 0.8 <0.1 --
Potassium 1.19 6.57 --
Sodium 196 IoU --
Sulfate 646 607 ND -3455
pH (s.u.) 1S.oI 7.38 6.7 -8.9
IUS J:j lU 127U 1019 -)48
Metals (ug/l)
ArsenIC <) <, --
Beryllium <0.) <U.) --
CadmIUm <0.) <U.5 ND -4.78
ChromIUm <25 <25 --
Cobalt <10 <10 --
copper <10 <10 --
Iron 89 )0 NO -7942
Lead <1.0 <1.0 --
Manganese 37 87 NO -34,)5U
Mercury <U.) <U.' --
Molybdenum 29 1.'J -
NICkel <20 <2U NO -61
SelenIum <'.U <'.U NO -106.)
Silver <10 <10 --
IhalltUm <U.) <U,) --
'1'10 <IOU <100 --
Uramum 15. I 46.6 NO -59.8
VanadIum <D <I) --
Zinc <10 <10 --
Radiologies (pC ill)
(jross Alpha I < -U.I I <U.J I NJJ -j{)
VOCS (ug/L)
Acelone <20 <20 --
Benzene <I.U <I.U --
Carbon tetrachionde <l.U <\.U --
Chloroform <I.U <I.U --
Ctlloromc(hane <I.u <I.U --
MEK <20 <20 --
Methylene Chloride <l.U <1.0 --
Table2C Detected Constituents and Comparison to Historic Values and Mill Site Monitoring Wells
Westwater Seep
Range of Average Historic
Values for Monitoring
Constituent 2009 2010 Wells I *
Naphthalene <1.0 <1.0 --
Tetrahydroturan <1.0 <1.0 --
Toluene <l.0 <l.0 --
Xylenes <I.U <1.U --
I From Figure 3, Table 10 and Appendix B of the Revised Addendum, Background Groundwater Quality Report: New
Wells for Denison Mines (USA) Corp's White Mesa Mill Site, San Juan County, Utah, April 30, 2008, prepared by
INTERA, Inc. and Table 16 and Appendix D of the Revised Background Groundwater Quality Report: Existing Wells for
Denison Mines (USA) Corp. 's White Mesa Uranium Mill Site, San Juan County, Utah, October 2007, prepared by
INTERA, Inc.
*Range of average historic values for On-Site Monitoring Wells as reported on April 30, 2008 (MW-l, MW-2, MW-3,
MW-3A,MW-4, MW-S, MW-ll, MW-12,MW-14, MW-lS, MW-17, MW-18,MW-19, MW-20, MW-22, MW-23,MW-
24, MW-2S, MW-26, MW-27, MW-28, MW-29, MW-30, MW-31 and MW-32)
Table2D Detected Constituents and Comparison to Historic Values and Mill Site Monitoring Wells
Entrance Spring
I Range of Average
Historic Values for
Constituent 2009 2010 Monitoring Wellsl *
Major Ions (mg/I)
Carbonate <\ <\ --
Bicarbonate 292 332 --
Calcium 90.8 96.5 --
Chloride 60 63 ND -213
Fluoride 0.7 0.73 NO -1.3
Magnesium 26.6 28.9 --
Nitrogen-Ammonia 0.28 <0.05 --
Nitrogen-Nitrate 1.4 I --
Potassium 2.4 2.74 --
Sodium 61.4 62.7 --
Sulfate 178 179 NO -3455
pH (s.u.) 7.85 7.56 6.7 -8.9
TOS 605 661 1019 -5548
Metals (ug/I)
Arsenic <5 <5 --
Beryllium <0.5 <0.5 --
Cadmium <0.5 <0.5 NO - 4.78
Chromium <25 <25 --
Cobalt <\0 <10 --
Copper <10 <10 --
Iron <30 <30 NO -7942
Lead <1.0 <1.0 --
Manganese 54 11 ND -34,550
Mercury <0.5 <0.5 --
Molybdenum <10 <10 --
Nickel <20 <20 ND-61
Selenium 12.1 9.2 ND -106.5
Silver <10 <10 --
Thallium <0.5 <0.5 --
Tin <100 <100 --
Uranium 15.2 17.8 ND -59.8
Vanadium <15 <15 --
Zinc <10 <10 --
Radiologies (pCi/l)
Gross Alpha 0.9 <0.5 ND-36
VOCS (ugIL)
Acetone <20 <20 --
Benzene <1.0 <1.0 --
Table2D Detected Constituents and Comparison to Historic Values and Mill Site Monitoring Wells
Entrance Spring
Range of Average
Historic Values for
Constituent 2009 2010 Monitoring Wells1 *
Carbon tetrachloride <1.0 <1.0 --
Chloroform <1.0 <1.0 --
Chloromethane <1.0 <1.0 --
MEK <20 <20 --
Methylene Chloride <1.0 <1.0 --
Naphthalene <1.0 <1.0 --
Tetrabydrofuran <1.0 <1.0 --
Toluene <1.0 <1.0 --
Xylenes <1.0 <1.0 --
J From Figure 3, Table 10 and AppendIx B of the ReVised Addendum, Background Groundwater
Quality Report: New Wells for Denison Mines (USA) Corp's White Mesa Mill Site, San Juan
County, Utah, April 30, 2008, prepared by INTERA, Inc. and Table 16 and Appendix D of the
Revised Background Groundwater Quality Report: Existing Wells for Denison Mines (USA)
Corp. 's White Mesa Uranium Mill Site, San Juan County, Utah, October 2007, prepared by
INTERA, Inc.
*Range of average historic values for On-Site Monitoring Wells as reported on April 30, 2008 (MW-l, MW-
2, MW-3,MW-3A, MW-4, MW-S,MW-ll, MW-12, MW-14, MW-1S, MW-17, MW-18, MW-19, MW-20,
MW-22, MW-23, MW-24, MW-2S, MW-26, MW-27, MW-28, MW-29, MW-30, MW-31 and MW-32)
INDEX OF TABS
Tab A Seeps and Springs Field Data Sheets and Photographic Documentation -2010
Tab B Field Parameter Measurement Data
Tab C Survey Data and Contour Map
Tab D Analytical Laboratory Data
Tab E Quality Assurance and Data Validation Tables
E-I Holding Time Evaluation
E-2 Laboratory Receipt Temperature Check
E-3 Analytical Method Check
E-4 Reporting Limit Evaluation
E-5 Trip Blank Evaluation
E-6 QA/QC ~valuation for Sample Dup.licates
E-7 Radiologies Counting Error
E-8 Laboratory Matrix QC Evaluation
Tab F CSV Transmittal
Tab A
Seeps and Springs Field Data Sheets and Photographic Documentation -2010
/ .'-!I
Attachment A
Field Data Record ... Seeps and Springs Sampling
_T_im~e~a~n~d_D_at_e_o_f~sa_m~p_li_ng~:~-L-U~~q-____ ~1~-~2~e~"~~~'/~o __ ~~ ___ g __ ·1 __ 6·zmu ~"7
Seep or Spring Location:
Sampling Personnel:
Weather Conditions at time of Sampling: clIM. $it.; >
Sampling Equipment Utilized:
Sampling Method Utilized:
Estimated Seep or Spring Flow rate: 1 ) t"'Y
~--------------------------Paramaters to be analvzed at the Laboratory:
Field Parameter Measurments:
PH
Temperature
Conduc:tlvity
t ••
-... -A
'~,M. iIMW . ./ ~
" ',f I". '"
'"
X' ~ I
/
)
Attachment A
FBeid Data Record .. Seeps and Springs Sampling
Time and Date of Sampling: 7· tz ~ 2tJ10
Seep or Spring Location: 1!!i?tleravv.fL c3e~;
J
Sampling Personnel: :1BdlfU" ('1/;.ainl j~&V , ,
Weather Conditions at time of Sampling: .
Sampling Equipment Utilized: &o..lstrilic, 14~
-----------------------------------Sampling Method Utilized:
_E_st_lma __ te_d_S_e_ep~or_S.:...p_rl...,,;:ng:...F_ID_w __ ra_te_:--'II~25:::11O<>'=::..--"=" ..... ,2'--~h~g;~( ___ "'f
Paramaters to be analvzed at the Laboratory:
Field Parameter Measurments:
PH '-,ro ".:\5 •
Temperature III ,ll 1 '1.10
Conductivity 10a;1) IO:l~
~ .5. ·7 IH.f 415 Y.f,8
.
Entrance Spring
7/6/2010
Photo taken facing north.
. . I
/
oj. •
"
I '
\ I •
,"
,~ , 'r
f •
, ~, .; ,
"
,"
"
.\
,~ .• <:: ... -'
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.
.¥
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, . ~
)of: ,I
, ..
Attachment A #
Fueld Data Record-Seeps and Springs Sampnng IC~-.5e:cf,M~
5, ~ O~/;';..d ...;.T:.:.:lm.:.:e-=a.:..:.:nd:...:D:.:a::.:te:..::o:.:..f~Sa;;,.:.;m~p:..:..:.;lin:....!:g:.-: --1..7_' L.l ...... · tu.'¢,-,-, --------------~ b (. /u//te/ tf
.:s::::ee:!p:..::o::..r::!sp::.ri::.:ng~l=o:::ca::t:=io,:::n:~.,J,&Jl.J,Itr:.:I1I.l!N~1M(l]Ui~~a~?I--____________ 5711Tz. 7. UT", ,:r
Sampling Personnel: e~((IN -~-:::a:-d-d-(-C-!!""'--ft-.tI-I----------lkW\-1Ic~1t,.soN J' .., '{-------~---~~--~~-.~~~ R~~JeH/~ Weather Conditions at time of Sampling: I
Sampling Equipment Utilized:
Sampling Method Utilized: farAb .$.,";.:;:1
I
• • _ 'III"" ,., /,"'''''p
J(j (, l' !2;S."C, 7k;
Estimated Seep or Spring Flow rate: • 2." -., :5"'~
Paramaters to be analyzed at the laboratory:
Field Parameter Measurments:
PH
Temperature It·/7 Ir.ar
Conductivity
I ,I t r t ( .. 4. ',,1 ~. (' -,.
.' ",..J " I ··", . ,,' /,'! . I
,
I. I
, I
· )
Attachment A
Field Data Record-Seeps and Springs Sampling
_T_im_e_a_nd_D_a_te_o_f s_a_m..:.,.PI_ln=g:_--.£.L---=, (,'--'Ii·~....:(2~~V~Co...-_":j..:.....-2;;..;u;....·~· Z;::;.u.:.,., U;,...· ---.:b~1--~-·-' 0 • c<'1 0 ~l
Seep or Spring Location:
Sampling Personnel: .-.-
Weather Conditions at time of Sampling:
Sampling Equipment UtHlzed: 4JJ4.
Sampling Method Utilized: NjA
Estimated Seep or Spring Flow rat-e-: -fi<--:-t'..M!----a.,..,o/-.------------
Paramaters to be analyzed at the Laboratory:
Field Parameter Measurments:
PH
Temperature
Conductivity
:-
Comments: m
wfiii
Corral Springs
7/6/2010
Photo taken facing north.
Corral Springs
7/6/2010
Photo taken facing north.
)
Attachment A
Eie~d /Data Record .. Seeps and Sprrings SampUng
Time and Date of Sampling: 7 7-.. 10
Seep or Spring Location: 151&<, Ie ¥ IZ:"-( --
)
Sampling Personnel: Td.. ..... "'C/--br--&-"..-r-. ;,.--.,-t;-,,,,. ...... ----------
, I
Weather Conditions at time of Sampling:
....
Estimated Seep or Spring Flow rate: ;:.r b;1.h'
Paramaters to be analyzed at the Laboratory:
Field Parameter Measurments:
PH t./p
Temperature 1ft /IJ
Conductivity
,. "<.:-", -
)
Attachment A
Field Data Record-Seeps aBld Springs Sampling
Time and Date of Sampling: 1· 1· It)
Seep or Spring locallon: /l;';N Sft.~ .-
Sampling Personnel: "';dH'-'-,--'(t-A-r-r;...!.a-,-">II:R:-~-,,---------
Weather Conditions at time of Sampling: P 4.""'1~ "edt 31\
(
Sampling Equipment Utilized: D:lt,powL :r .. ~;~ I PM""":' 0.""
Sampling Method Utilized: Cr,.I> ;Sf.Mpk:.« P.,.:,.4.hs ,...., \)!t !6W ~ .nthl"
(;.,,) A ~ t 0..... &\.! oS cap" )
Paramaters to be analyzed at the laboratory: A" f"'-Ic 9l, PAl'A"'~:\,r$ :1
Crt.) D P • S VQ(.'S
Field Parameter Measurments:
PH '.CoO '-.w,
Temperature 1'4.0"1 11(.10
Conductivity 12"11 121:\~
OBP Lt'3K ':13' T",," iJ.,. 0 ()
•
fI :, I
t •.•
)
Attachment A
Field Data /Record-Seeps and Springs Samplinl
Time and Date of Sampling: 7· 7 , 2()11J
Seep or Spring Location: We , 4fti'
Sampling Personnel: fiMCC, !1b«i«, t'yAd'
Weather Conditions at time of Sampling: :amy dIMdy 1 W4IAt Lf Z
Sampling Equipment Utilized: /f414 3"r' 'If »4_cilt" *4' i thJ1i/J-, ~/
SamplingMethodUtlU,ed: /:,~ s-,u :; f..ciiW'L. /.U., ~ 74«/ Y iNTlltJ .$ &ms,lft.
Estimated Seep or Spring Flow rate: , //J -I. +'t?
Paramaters to be analyzed at the laboratory:
Field Parameter Measurments: 1· .. t ~.lotc)
PH :1 ,Q~ 'Z·O~
Temperature r1.QQ \"'1. ~. U)",,\c." ~~'rrc). "'r ~~.r
I~ ~O\ t$ ~cI'" Conductivity ~~ ~ ilh.
· ...
Westwater Seep
7/7/2010
Photo taken facing east.
Westwater Seep
7/7/2010
Photo taken facing east.
...
Il("
Westwater Seep
7/7/2010
Photo taken facing east.
, .~ , . ' .. \ "'.\
"
..,'.\\ '\ ',~. "
\
'I,
Westwater Seep
7/7/2010
Photo taken facing east
Westwater Seep
7/7/2010
Photo taken facing east.
Westwater Seep
7/7/2010
Photo taken facing east.
Attachment A
field Data Record~Setms and Springs Sampling
Time and Date of Sample Bvent: ~!.L:! ·.....:3~ . .<C>:2. .... OI""Q---+/---:Q"'"~~'i.L.;;u'--_____ ~_,
Seep or Spring Location: c.. (:, Boo woor} (. 'If
Sampling Personnel: 6-""",,, p"I,I'o',-~:M'r Jhtl\4~;Y
Weather Conditions at time ofSamplillg: g .... I/W &In.-ala1' cla,c Slsj<,S Sampling Bquipmoot Utilil.ed: ______ J ____________ _
Samplins Method Utilized: _.:::..G-=r#-.::,.b.........il:$S:wb:'lUfr';:...;':.--__________ _
Estimated Seep of Spring Flow Rtlte: ____ -:--=--______ -,.--. __
Parameters to be Analyzed at the LabOlutory: I ~·d J\ v()(.s 'ocl~ ~\t to JlMt:ri(G"I WC\\~ L~
~"'-"'I! F.
Field Parametet M6Rsuremonts:
.. pH 6. '7 .Temperature ....JLLII$:a;.O~6~ __________ _
-Conductlvlty ~J..IoiII6xtl-",-D ____________ _
T'",,~. 5.1 .
Cottonwood Seep
1113/2010
Photo taken facing northeast.
Attjchmeot A
Pield Data ReQ()rd~Seep8 and Spl'inS§ Swpling
Time and Date of Sample Event: .....i\u..~ 1~'3L.J/u.I","Q_....lO...:...ll.S'_!>"",,51--_______ _
Seep or Spring Location: e,,c.. t ,"" C;.,.. c..f, !;> pc, 1\ 4
Sampling Personnel: r~"V" t\t21~~41 ~b
Weather CondltJons at time ofSampling:.....,L,j0 ... :.c.:..:. l~y~"..;.::h.;"""..>~f\t.::f1 _______ . __ _
Sampling Equipment Utilized: ______________________ _
Sampling Method Utilized: _ .. ~GolL·, .. ~e..cSlL.4. -,'*m!O!>oC:l~r..l.l1 (;. _____________ _
Bstimated Seep of Spring Flow Rate: _______ _________ _
Parameters to be Analyzed at the Laboratory:
.ant se.t t>' V(,>,;~ h A."'V·,U.A w ,,-st (..0<_,," ft---n-tf
Fjeld Parametct Mtmsuremoot$:
.. pH "7-33
-Temperatum _\.LJ,Q~tu.G'-oIl~ ______ ---__
.Collductivity _9~tiOU.bt::::..-__________ _
-i"vlb 6, ')..
Attachment A
Fjeld Data Record~Seeps and Springs Siunpling
Time and Date of Sample Event:
Seep or Spring Location: -~~-~.u.lJoU.----''-:I''''-~T\--...-.r--:-T-;---:----­
Sampling Personnel:
Weather Conditions at tim6 of Sampling:._ ........... ........".-t---"-.:..>G><:""'"'+________ , __
Sampling Equipment Utili1.ed: _______________ __._---
Sampling Method Utilized: __ ~&~I"~~~ __ <)q..&..e:!""¥~!::;.I'5.--_____ ---
Estimated Seep of Spring Flow Rut",: ______ , ________ _
Parameters to be Analyzed at the Lllbol'ntory:
. VOL So.\V\;:k .$;.oj to' Aror.cic(,\p \Ur:§>\ L<b
. G· :tHE =
Field Parameter Measurements:
.. pH 7.3.3
-Temperature _-.ll~()~.~=-__________ _
·Con.ductivity _--Iq~b2'::L:...-.. ___ ~ ______ _
~ 1 I)..rb, (.,. ..:l
Entrance Spring
1113/20.1 0
Photo taken facing north.
Attachment eo
field Data Record .. Seep!; And Springs Sampling
Time and Date of Sam pte Event: I J /3/1 G 0 e!tD
Seep or Spring Location: LV eo H w~--\t: .. ,-s.c:~~
Sampling Personnel: G(~N: A {Jf-.l"" s;;-I U,.A.N..:-\-:I.e I \")..,, \ /
Weather Conditions at time of Sampling: p(\... 1(../ l,..1 vv J.y ,
Sampling Equia.ment Utilized: ______ ' ____________ _
Sampling Mef''"'tl'Utitized: --!&~ro..:::Jb~...;<;:.::o..:.;.."""~f';...!.I~e... ____________ _
Bsthnated Seep of Spring Flow Rute: ______ , ________ _
Parameters to be Analyzed at the Lllbo1'i\tory:
J ,f-q of Vuc.·" to be... .t0~ t<> A'.v\yI, b"> ~~~t (,e=h ~ ... ....-lHf'
Field Parameter Measurements:
-pH 6,9 g
.Temperature ---,-,I (;~-e ..... 1 G~ ____________ _
-Con.ductivity _\u.6~I).I.£O _____________ _
.. r,/r~ 3g'.·O
Attachm~t.A
Field Data Rec()rd-Se~us and Spl'illg8 Sampling
Time and Date of Sample Event: -,\~1 /...../"30::../,--,-",1 t'/:;...,-_......:::::"-"q'-'t...I.;...;o:;...· ________ _
Seep or Spl'ing Location: ....IIS::o...!v""',~.'.......c$~(?..Lr\:z.; ...... :.::;t)~ __ . ___________ _
Sampling Personnel: r, ....... '" c..:-H9'II:cA. f\ 'f ' {u~ .. r. ,... 0-\ r"'"S ......
Weather Conditions at time of SampHllg:.--Je ..... W-~tI,'1-->::k;;.;.1 0:;;,.' v:;..,.~:...·J.'{+-______ .~ ___ .
Sampling Equipment Utilized: __________________ _
Sampling Method Utilized: !::::::6:.!. .... .!::t:--::.:~__=::~~~.:!::.""'~f~I~<. __ ----------Bsthnated Seep of Spring Flow Rute: _________________ _
Parameters to be Analyzed at the La.bo1'atory:
.f2.\.c >e.± ~£ V"c,'.s t" AM$." iG.(0-(...V ,.d Ie",!.. x~ rl{E
Field Parameter M"llSUl'ements:
.. pH b. Cjf
-Temperature .....!....,I Y..I..«,.Jt.).:,..Ci,!..· ___________ _
.Conductivity __ '!...<d..~5l.-:3l.-___________ _
-fvl"b 0
Attachment A
Fjeld Data Reoo[d·Seeps Dnd Springs Sampling
Time and Date of Sample Bvent: _:....:..1 L u:/3+Jizlok&''-L'x.,D _---loOuf.(,::'C~4"--_______ _
Seep or Spl'ing Location: SG<.e <:.crr ...... \ ("'*~_ So:<:(.p
Sampling Personnel: _~1>~4V~~ .\...t:...T:J..!IA':::!..-:"-::..-___________ _
Weather Conditions at time of Sampling: Ltc..,.... _J.. t'p I J.
Sampling Equipment Utilized: _-IN~A-____________ ~ __
Sampling Method Utilized: _., __ J:!N~A-~ _____________ _
Sstimated Seep of Spring Flow Rute: ----'~=~~___ _ _______ ----.,.
Parameters to be Analyzed at the Laboratory:
tlA
Field Parameter M~usut'eme1\t.s:
-pH tlA.
.Tempcrature ....:t-l..:l.:.....-... ____________ _
-Coluluctivity .-:..;~:.:::. .... _____________ _
Corral Canyon Seep
1113/2010
Photo taken facing north.
AttQchment A
Field Data Record-Seeps Ilnd Springs Srunpliog
Time and Date of Sample Bvent: -..I.I!I~\3ilJ/~t."~I..!::." __ ---=O:....l5:....;Z.::..'IL.-_____ _
Seep or Spring Location: ___ Se-~~~_.!:::.----..:La-,-=. :;.r:c::5 .... ~l----'5t..&. .. :a::.-.p..p _______ _
Sampling Personnel: _--:--Q~M=-llOl:."...:.Jo::.vr:..::k-=-__ ~ _______ , ___ _
Weather Conditions at time of Sampling:, __ (""'-l.J","(,=_""---,-,=-:.L~,,,,,-,,, .... .L=--_____ __
Sampling Equipment Utilized: _.&.::N~A"--______________ _
Sampling Method Utilized: ,_----llliI.!:l4'--______________ _
Estimated Seep of Spring Flow Rute: _B~:6:A-=__ ______________ _
Parametel'S to be Analyzed at the Lab01utory:
\tA-
Field Parameter Measuremonts:
.. pH N.A-
-Temperature ---Il't~{t!....-____________ _
-Conductivity -..llHLO&-e--_____ . _______ _
Corral Springs
1113/2010
Photo taken facing north.
TabB
Field Parameter Measurement Data
Field --------------
Location pH Conductivity Turbidity Redox Tern!)
Date July November July November July November July November July November
Entrance Spring 6.02 6.35 7.33 1025 1024 962 0.5 0.7 6.2 475 468 Not measured 19.11 19.1 10.62
Cottonwood Seep 6.42 6.67 6.67 16.12 16.25 1600 9.8 7.9 5.1 501 492 Not measured 16.17 15.85 15.05
Back/Orvin Spring
(Duplicate of Ruin
Spring) 6.60 6.66 7.33 1247 1243 962 0 0 6.2 438 439 Not measured 14.04 14.10 10.62
Ruin Spring 6.60 6.66 6.98 1247 1243 1253 0 0 0 438 439 Not measured 14.04 14.10 14.29
Westwater Seep 7.03 7.03 6.98 1707 1782 1650 8.10 44.6 38 401 342 Not measured 17.99 17.21 10.1
TabC
Survey Data and Contour Map
Seeps and Springs Survey Locations
December 2009 Survey
Location Latitude (N) Longitude (W) Elevation
FROG POND 37°33'03.5358" 109°29'04.9552" 5589.56
CORRAL CANYON 37°33'07.1392" 109°29'12.3907" 5623.97
ENTRANCE SPRING 37°32'01.6487" 109°29'33.7005" 5559.71
CORRAL SPRINGS 37°29'37.9192" 109°29'35.8201 " 5383.35
RUIN SPRING 37°30'06.0448" 109°31 '23.4300" 5380.03
COTTONWOOD 37°31'21.7002" 109°32'14.7923" 5234.33
WESTWATER 37°31 '58.5020" 109°31 '25.7345" 5468.23
Verification Survey July 2010
RUIN SPRING 37°30'06.0456" 109°3 1 '23 .4181 " 5380.01
COTTONWOOD 37°31 '21.6987" 109°32'14.7927" 5234.27
WESTWATER 37°31'58.5013" 109°31 '25.7357" 5468.32
EXPLANATION
• Perched Monitoring Well * Abandoned Perched Monitoring Well
Ruin Spring Seep or Spring
5380 Showing Elevation
Estimated Dry Area (Kriged
Brushy Basin Surface >
Kriged Perched Water Surface)
NOTES: MW4. TW4-4. TW4-15 (MW-26). lW4-19 and lW4-20 are pumping weJJs;
For purposes of contouring. seeps and springs (except Cottonwood) are considered
representaive of perched water elevations; Cottonwood Seep is not considered
representaive because it is separate from the perched water system.
HYDRO
GEO
3rd QUARTER, 2010 PERCHED WATER
ELEVATION CONTOURS (FEET AMSL)
(generated by kriging data from on-site wells,
and seeps and springs excluding Cottonwood)
CHEM, INC. APPROVED DATE REFERENCE H:f718000lcell4bjuly20101
springQ3IphwIQ3sp.srf
FlGURE
SJS 1
TabD
Analytical Laboratory Data
EI\ERGY www.energylab.com Helen., MT 877-412-0711 • Bllllnll, MT 801-735·4419 • Casper, WY .18-235-0515
Gillette, WY 111-111·7175 • Rapid City, SD 11.·112-1221 • CoilegeSlation, 1X 1.1·69D-2218 :'" '. 1 I. IM/f1II:II EluIItIa SIiIu 1151
ANALYTICAL SUMMARY REPORT
July 29, 2010
Denison Mines USA Corp
6425 S Hwy 191
Blanding, UT 84511
Workorder No.: C10070314 Quote ID: C1640 -POC Wells
Project Name: Annual Seeps and Springs
Energy Laboratories, Inc. received the following 7 samples for Denison Mines USA Corp on 7/9/2010 for analysis.
Sample 10 Client Sample 10 Collect Date Receive Date Matrix Test
C10070314-001 Entrance Seep 07/06/10 13:15 07/09/10
C10070314-002 West Water Seep 07/08/1008:40 07/09/10
C 10070314-003 Cottonwood Seep 07/07/1009:50 07/09/10
C 1 0070314-004 Ruin Springs 07/07/10 11 :23 07/09/10
C 1 0070314-005 Back Spring 07/07/10 11 :23 07/09/10
C10070314-006 Trip Blank 07/08/1000:00 07/09/10
C10070314-007 Temp Blank 07/08/10 00 :00 07/09/10
Aqueous Metals by ICP/ICPMS, Dissolved
Alkalinity
Aqueous
Aqueous
Aqueous
Aqueous
Aqueous
Aqueous
QA Calculations
Chloride
Fluoride
Nitrogen, Ammonia
Nitrogen, Nitrate + Nitrite
pH
Gross Alpha minus Rn222 and
Uranium
Solids, Total Dissolved
Sulfate
SW8260B VOCs, Standard List
Same As Above
Same As Above
Same As Above
Same As Above
SW8260B VOCs, Standard List
Temperature
This report was prepared by Energy Laboratories, Inc., 2393 Salt Creek Hwy., Casper, WY 82601. Any exceptions
or problems with the analyses are noted in the Laboratory Analytical Report, the QA/QC Summary Report, or the
Case Narrative.
The results as reported relate only to the item(s) submitted for testing.
If you have any questions regarding these test results, please call.
Report Approved By: ~~~uJ~~
Reporting Supervisor
Digitally signed by
Stephanie Waldrop
Date: 2010.07.3016:38:38 -06:00
Page 1 of 30
EN:RGY ~
" , )1 1 •• 1' 1 ~I ~ L ~ _ -
Helena, MT 871-412-D111 • Billings, MT BGD-135-448e • Casper, 'NY 888-235-0515
Gillette WY 818-111-1115 • Ra Id C SD 888·812-1225 • Colle e Station 1X 888·690·2218
CLIENT: Denison Mines USA Corp
Project: Annual Seeps and Springs Report Date: 07/29/10
Sample Delivery Group: C10070314 CASE NARRATIVE
COMMENTS
Cancelled SVOC 8270 analysis per Jo Ann Tischler 07115/10.
ORIGINAL SAMPLE SUBMITIAL(S)
All original sample submittals have been returned with the data package.
SAMPLE TEMPERATURE COMPLIANCE: 4"C (±2"C)
Temperature of samples received may not be considered properly preserved by accepted standards. Samples that are hand
delivered immediately after collection shall be considered acceptable if there is evidence that the chilling process has begun.
GROSS ALPHA ANALYSIS
Method 900.0 for gross alpha and gross beta is intended as a drinking water method for low TDS waters. Data provided by
this method for non potable waters should be viewed as inconsistent.
RADON IN AIR ANALYSIS
The desired exposure time is 48 hours (2 days). The time delay in returning the canister to the laboratory for processing
should be as short as possible to avoid excessive decay. Maximum recommended delay between end of exposure to
beginning of counting should not exceed 8 days.
SOIUSOLID SAMPLES
All samples reported on an as received basis unless otherwise indicated.
ATRAZINE, SIMAZINE AND PCB ANALYSIS
Data for PCBs, Atrazine and Simazine are reported from EPA 525.2. PCB data reported by ELI reflects the results for seven
individual Aroclors. When the results for all seven are ND (not detected), the sample meets EPA compliance criteria for
PCB monitoring.
SUBCONTRACTING ANALYSIS
Subcontracting of sample analyses to an outside laboratory may be required. If so, ENERGY LABORATORIES will utilize its
branch laboratories or qualified contract laboratories for this service. Any such laboratories will be indicated within the
Laboratory Analytical Report.
BRANCH LABORATORY LOCATIONS
eli-b -Energy Laboratories, Inc. -Billings, MT
eli-g -Energy Laboratories, Inc. -Gillette, WY
eli-h -Energy Laboratories, Inc. -Helena, MT
eli-r -Energy Laboratories, Inc. -Rapid City, SD
eli-t -Energy Laboratories, Inc. -College Station, TX
CERTIFICATIONS:
USEPA: WY00002, Radiochemical WY00937; FL-DOH NELAC: E87641, Radiochemical E871 017; California: 02118CA;
Oregon: WY200001 ; Utah: 3072350515; Virginia: 00057; Washington: C1903
ISO 17025 DISCLAIMER:
The results of this Analytical Report relate only to the items submitted for analysis.
ENERGY LABORATORIES, INC. -CASPER,WY certifies that certain method selections contained in this report meet
requirements as set forth by the above accrediting authorities. Some results requested by the client may not be covered
under these certifications. All analysis data to be submitted for regulatory enforcement should be certified in the sample
state of origin. Please verify ELI's certification coverage by visiting www.energylab.com
ELI appreciates the opportunity to provide you with this analytical service. For additional information and services visit our
web page www.energylab.com.
Page 2 of 30
EN:RGY
. 'd.,d· rq·
www.energytab.com
AMI1/iI:M r.a..,.. rift
Helene, MT 111-472-0711 • Billings, MT 800-735-4488 • Casper, 'II'( 188-235-0515
Gillette, 'II'( 111-111-7175 • Rapid City, SD 818-172-1225 • College StatiDn, 1X 188-681-2211
LABORATORY ANALYTICAL REPORT
Client: Denison Mines USA Corp
Project: Annual Seeps and Springs
LabID: C10070314-001
Client Sample ID: Entrance Seep
Analyses
MAJOR IONS
Carbonate as C03
Bicarbonate as HC03
Calcium
Chloride
Fluoride
Magnesium
Nitrogen, Ammonia as N
Nitrogen, Nitrate+Nitrite as N
Potassium
Sodium
Sulfate
PHYSICAL PROPERTIES
pH
Solids, Total Dissolved TDS @ 180 C
METALS -DISSOLVED
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Iron
lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Tin
Uranium
Vanadium
Zinc
RADIONUCLIDES -DISSOLVED
Gross Alpha minus Rn & U
Gross Alpha minus Rn & U Precision (t)
Gross Alpha minus Rn & U MDC
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
ND
332
96.5
63
0.73
28.9
ND
1.0
2.74
62.7
179
7.56
661
ND
ND
ND
ND
ND
ND
ND
ND
11
ND
ND
ND
9.2
ND
ND
ND
17.8
ND
ND
0.5
0.4
0.5
Units
mgll
mgll
mg/l
mg/l
mgll
mg/l
mgll
mgll
mgll
mgll
mgll
S.u.
mg/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
pCi/l
pC ill
pC ill
MDC -Minimum detectable concentration
Report Date: 07/29/10
Collection Date: 07106/1013:15
DateReceived: 07109/10
Matrix: Aqueous
MCll
Qualifiers Rl QCl Method Analysis Date 1 By
D
D
U
A2320 B 07/14/10 14:16/1r
1 A2320 B 07/14/10 14:16/1r
0.50 E200.7 07/12110 16:51 I cp
1 A4500-CI B 07/20/10 11:19/1r
0.10 A4500-F C 0711511 0 15:07 Ilr
0.50 E200.7 07/12110 16:51 I cp
0.05 A4500-NH3 G 07/23/10 15:58/1jl
0.1 E353.2 07/12110 21:221 Ijl
0.50 E200.7 07/12110 16:51 Icp
0.57 E200.7 07/12110 16:51 Icp
10 A4500-S04 E 07/19/10 15:21 Ilr
0.01 A4500-H B 07109/10 14:55/1r
10 A2540 C 07109/10 15:02/1r
5.0 E200.8 07/12110 19:291 ts
0.50 E200.8 07/1211019:291 ts
0.50 E200.8 07/12110 19:29 I ts
25 E200.8 07/1211019:291 ts
10 E200.8 07/1211019:291 ts
10 E200.8 0711211 0 19:29 Its
30 E200.7 07/1211016:511 cp
1.0 E200.8 07/12110 19:291 ts
10 E200.8 07/12110 19:291 ts
0.50 E200.8 07/12110 19:29 Its
10 E200.8 07/1211019:291 ts
20 E200.8 07/1211019:291 ts
5.0 E200.8 07/1211019:291 ts
10 E200.8 07/1211019:291 ts
0.50 E200.8 07/1211019:291 ts
100 E200.8 07/1211019:291 ts
0.30 E200.8 07/12110 19:291 ts
15 E200.8 07/1211019:291 ts
10 E200.8 07/1211019:291 ts
E900.1 07/20/10 14:16/cgr
E900.1 07/20/1014:161 cgr
E900.1 07/20/1014:161 cgr
MCl -Maximum contaminant level.
ND -Not detected at the reporting limit.
D -Rl increased due to sample matrix.
U -Not detected at minimum detectable concentration
Page 3 of 30
EN:RGY
:." I '.' I' I (II •
www.energylab.com
AM/yIJ&M~1/Du flU
Helena, MY 817-472-0711 • Billings, MY 801·735·4489 • Casper, 'NY 888·235·0515
Gillette, WY 811·18&·7175 • Rapid City, SD 888·172·1225 • College Station, 1X 888-&98·2218
LABORATORY ANALYTICAL REPORT
Client: Denison Mines USA Corp
Project: Annual Seeps and Springs
LabID: C10070314-001
Client Sample ID: Entrance Seep
Analyses
DATA QUALITY
AlC Balance (± 5)
Anions
Cations
Solids, Total Dissolved Calculated
TDS Balance (0.80 -1.20)
VOLATILE ORGANIC COMPOUNDS
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
Methyl ethyl ketone
Methylene chloride
Naphthalene
Toluene
Xylenes, Total
Surr: 1,2-0ichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
Result
-4.98
11.0
9.99
626
1.06
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
115
110
121
105
Units
%
meq/L
meq/L
mg/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
%REC
%REC
%REC
%REC
S -Spike recovery outside of advisory limits.
Report Date: 07/29/10
Collection Date: 07/06/1013:15
DateReceived : 07/09/10
Matrix: Aqueous
MCll
Qualifiers Rl QCl Method Analysis Date 1 By
Calculation 07/21/10 08:151 kbh
Calculation 07/21/1008:151 kbh
Calculation 07/21/10 08:151 kbh
Calculation 07/21/1008:151 kbh
Calculation 07/21/1008:151 kbh
20 SW8260B 07/1211013:471 wen
1.0 SW8260B 07/12110 13:47/wen
1.0 SW8260B 07/1211013:471 wen
1.0 SW8260B 07/12110 13:47/wen
1.0 SW8260B 07/1211013:471 wen
20 SW8260B 07/1211013:471 wen
1.0 SW8260B 07/12110 13:47/wen
1.0 SW8260B 07/12110 13:471 wen
1.0 SW8260B 07/1211013:471 wen
1.0 SW8260B 07/12110 13:47 1 wen
80-120 SW8260B 07/12110 13:471 wen
70-130 SW8260B 07/12110 13:471 wen
S 80-120 SW8260B 07/1211013:471 wen
80-120 SW8260B 07/1211013:471 wen
MCL -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 4 of 30
EN:RGY
,/,-,,)1./'\1 "ii"
www.energylab.com
AMI/IIaI~" 1m
Halena, MT 871-412-D111 • Billings, MT 8DI-135-44111 • Casper, Vff 888-235-0515
Gillattu, W'f 1.&-888-1115 • Rapid City, SD 888-112-1225 • College Station, TX 888-681-2218
LABORATORY ANALYTICAL REPORT
Client: Denison Mines USA Corp
Project: Annual Seeps and Springs
Lab 10: C10070314-002
Client Sample ID: West Water Seep
Analyses
MAJOR IONS
Carbonate as C03
Bicarbonate as HC03
Calcium
Chloride
Fluoride
Magnesium
Nitrogen, Ammonia as N
Nitrogen, Nitrate+Nitrite as N
Potassium
Sodium
Sulfate
PHYSICAL PROPERTIES
pH
Solids, Total Dissolved TDS @ 180 C
METALS -DISSOLVED
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Iron
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Tin
Uranium
Vanadium
Zinc
RADIONUCLIDES -DISSOLVED
Gross Alpha minus Rn & U
Gross Alpha minus Rn & U Precision (±)
Gross Alpha minus Rn & U MOC
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
Result
NO
450
179
40
0.60
44.7
0.50
NO
6.57
160
607
7.38
1270
NO
NO
NO
NO
NO
NO
56
NO
87
NO
29
NO
NO
NO
NO
NO
46.6
NO
22
0.3
0.3
0.5
Units
mg/L
mglL
mg/L
mglL
mg/L
mglL
mglL
mglL
mg/L
mglL
mglL
S.u.
mg/L
ug/l
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
pC ilL
pC ilL
pCl/L
MOC -Minimum detectable concentration
Report Date: 07/29/10
Collection Date: 07/08/10 08:40
DateReceived: 07/09/10
Matrix: Aqueous
MCll
Qualifiers Rl QCl Method Analysis Date 1 By
0
0
U
A2320 B 07/14/10 14:4211r
A2320 B 07/14/10 14:42/1r
0.50 E200.7 07/1211016:551 cp
A4500-CI B 07/20/10 11 :21 /lr
0.10 A4500-F C 07/15/10 15:10 IIr
0.50 E200.7 07/1211016:551 cp
0.05 A4500-NH3 G 07/23/10 16:00 Iljl
0.1 E353.2 0711211 0 21 :2411jl
0.50 E200.7 07/1211016:551 cp
0.57 E200.7 07/1211016:551 cp
10 A4500-S04 E 07/19/10 15:23/1r
0.01 A4500-H B 07/09/10 14:59/1r
10 A2540 C 07/09/10 15:02/1r
5.0 E200.8 07/12110 19:361 ts
0.50 E200.8 07/12110 19:361 ts
0.50 E200.8 07/12110 19:361 ts
25 E200.8 07/12110 19:361 ts
10 E200.8 07/12110 19:361 ts
10 E200.8 07/12110 19:361 ts
30 E200.7 07/1211016:551 cp
1.0 E200.8 07/12110 19:361 ts
10 E200.8 07/12110 19:36 Its
0.50 E200.8 07/12110 19:361 ts
10 E200.8 07/12110 19:361 ts
20 E200.8 07/12110 19:36 Its
5.0 E200.8 07/12110 19:36 Its
10 E200.8 07/1211019:361 ts
0.50 E200.8 07/12110 19:361 ts
100 E200.8 07/12110 19:36 Its
0.30 E200.8 07/12110 19:361 ts
15 E200.8 07/12110 19:36 I ts
10 E200.8 07/12110 19:36 Its
E900.1 07/20/1014:161 cgr
E900.1 07/20/1014:161 cgr
E900.1 07/20/1014:161 cgr
MCL -Maximum contaminant level.
NO -Not detected at the reporting limit.
o -RL increased due to sample matrix.
U -Not detected at minimum detectable concentration
Page 5 of 30
EN:RGY
t 1\ L l! ) I ~;'. I ( 'I -II ~
www.energylab.com
AIuIyfIaI ~ IIIIu 1152
Helena, MY 871-412-0711 • Billings, MY 800-135-4419 • Casper, WV 188-235-0515
Gillatta, WY 818-68&-7115 • Rapid City, SD 888-612-1225 • College Station, 1X 888-691-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab ID:
Denison Mines USA Corp
Annual Seeps and Springs
C10070314-002
Client Sample ID: West Water Seep
Analyses
DATA QUALITY
AlC Balance (± 5)
Anions
Cations
Solids, Total Dissolved Calculated
TDS Balance (0.80 -1.20)
VOLATILE ORGANIC COMPOUNDS
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
Methyl ethyl ketone
Methylene chloride
Naphthalene
Toluene
Xylenes, Total
Surr: 1,2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
Result
-3.51
21.2
19.7
1290
0.980
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
115
113
116
105
Units
%
meq/l
meq/l
mgll
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
%REC
%REC
%REC
%REC
Report Date: 07/29/10
Collection Date: 07/08/10 08:40
DateReceived: 07/09/10
Matrix: Aqueous
MCll
Qualifiers Rl QCl Method Analysis Date 1 By
Calculation 07/21/1008:161 kbh
Calculation 07/21/1008:161 kbh
Calculation 07/21/1008:161 kbh
Calculation 07/21/1008:161 kbh
Calculation 07/21/10 08:161 kbh
20 SW8260B 07/12110 14:221 wen
1.0 SW8260B 07/12110 14:22 1 wen
1.0 SW8260B 07/12110 14:221 wen
1.0 SW8260B 07/12110 14:221 wen
1.0 SW8260B 07/12110 14:22/wen
20 SW8260B 07/12110 14:22 1 wen
1.0 SW8260B 07/12110 14:22/wen
1.0 SW8260B 07/12110 14:22 1 wen
1.0 SW8260B 07/12110 14:22 1 wen
1.0 SW8260B 07/12110 14:22 1 wen
80-120 SW8260B 07/12110 14:22 1 wen
70-130 SW8260B 07/1211014:221 wen
80-120 SW8260B 07/1211014:221 wen
80-120 SW8260B 07/12110 14:221 wen
MCL -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 6 of 30
EN:RGY
1\ ~ 1 { II . I' I' I # II '~
www.energflab.com
AM/fIIaJ E.raIMc:w .. 'IU
Helen., lofT 871-412-11111 • Billings, lofT 801-135-4489 • Casper, Wf 888-235-11515
Gillette, WY 111-688-1175 • Rapid City, SD 688-112-1225 • Collage Station, TX IS8-&9D-2218
LABORATORY ANALYTICAL REPORT
Client: Denison Mines USA Corp
Project: Annual Seeps and Springs
Lab 10: C10070314-003
Client Sample 10: Cottonwood Seep
Analyses
MAJOR IONS
Carbonate as C03
Bicarbonate as HC03
Calcium
Chloride
Fluoride
Magnesium
Nitrogen, Ammonia as N
Nitrogen, Nitrate+Nitrite as N
Potassium
Sodium
Sulfate
PHYSICAL PROPERTIES
pH
Solids, Total Dissolved TDS @ 180 C
METALS -DISSOLVED
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Iron
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Tin
Uranium
Vanadium
Zinc
RADIONUCLIDES -DISSOLVED
Gross Alpha minus Rn & U
Gross Alpha minus Rn & U Precision (±)
Gross Alpha minus Rn & U MDC
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
Result
NO
340
92.2
112
0.38
24.8
NO
ND
5.77
214
389
7.47
900
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
8.24
NO
ND
0.5
0.4
0.5
Units
mglL
mglL
mglL
mglL
mglL
mg/L
mglL
mglL
mglL
mglL
mglL
S.u.
mglL
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
pC ilL
pCi/L
pCi/L
MDC -Minimum detectable concentration
Report Date: 07/29/10
Collection Date: 07107/1009:50
DateReceived: 07109/10
Matrix: Aqueous
MCll
Qualifiers Rl QCl Method Analysis Date 1 By
D
D
U
A2320 B 07/14/10 14:58 /lr
A2320 B 07/14/10 14:581 Ir
0.50 E200.7 07/12110 16:591 cp
A4500-CI B 07/20/10 11 :24 1 Ir
0.10 A4500-F C 07/15/10 15:14/1r
0.50 E200.7 07/12110 16:591 cp
0.05 A4500-NH3 G 07/23/10 16:08 /ljl
0.1 E353.2 07/12110 21 :27/1jl
0.50 E200.7 07/12110 16:59/cp
0.57 E200.7 07/12110 16:591 cp
10 A4500-S04 E 07/19/10 15:24/1r
0.01 A4500-H B 07109/10 15:05/1r
10 A2540 C 07109/10 15:03 Ilr
5.0 E200.8 07/1211019:421 ts
0.50 E200.8 07/1211019:421 ts
0.50 E200.8 07/12110 19:42/1s
25 E200.8 07/12110 19:42/1s
10 E200.8 07/12110 19:421 ts
10 E200.8 07/12110 19:42 lis
30 E200.7 07/1211016:591 cp
1.0 E200.8 0711211019:421 ts
10 E200.8 07/12110 19:42 lis
0.50 E200.8 0711211 0 19:421 ts
10 E200.8 07/12110 19:42 lis
20 E200.8 07/12110 19:42 lis
5.0 E200.8 07/12110 19:421 ts
10 E200.8 0711211 0 19:42/1s
0.50 E200.8 07/12110 19:42/1s
100 E200.8 07/12110 19:42 lis
0.30 E200.8 07/12110 19:42 lis
15 E200.8 07/12110 19:42 lis
10 E200.8 07/12110 19:421 ts
EBOO.1 07/20/10 14:161 cgr
EBOO.1 07/20/10 14:161 cgr
E900.1 07/20/10 14:161 cgr
MCL -Maximum contaminant level.
ND -Not detected at the reporting limit.
D -RL increased due to sample matrix.
U -Not detected at minimum detectable concentration
Page 7 of 30
EI'ERGY
,.1 I ;t,:\ 1 {'r Jll •
Helena, MT 871--472-0711 • Billings, MT 801-735-4418 • Casper, YN 118-235-0515
Gillette, WY 111-181-7175 • Rapid City, SD 888-172-1225 • College Station, TX 188-&BD-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
LabID:
Denison Mines USA Corp
Annual Seeps and Springs
C10070314-003
Client Sample ID: Cottonwood Seep
Analyses
DATA QUALITY
AlC Balance (± 5)
Anions
Cations
Solids, Total Dissolved Calculated
TDS Balance (0.80 -1.20)
VOLATILE ORGANIC COMPOUNDS
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
Methyl ethyl ketone
Methylene chloride
Naphthalene
Toluene
Xylenes, Total
Surr: 1,2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
Result
-2.30
16.8
16.1
1030
0.870
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
115
120
118
108
Units
%
meqlL
meq/L
mg/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
%REC
%REC
%REC
%REC
Report Date: 07/29/10
Collection Date: 07/07/1009:50
DateRecelved: 07/09/1 0
Matrix: Aqueous
MCL!
Qualifiers RL QCL Method Analysis Date I By
Calculation 07/21/1008:171 kbh
Calculation 07/21/1008:171 kbh
Calculation 07/21/10 08:171 kbh
Calculation 07/21/10 08:171 kbh
Calculation 07/21/10 08:171 kbh
20 SW8260B 07/12110 14:57/wen
1.0 SW8260B 07/12110 14:57 1 wen
1.0 SW8260B 07/12110 14:57/wen
1.0 SW8260B 07/1211014:571 wen
1.0 SW8260B 07/12110 14:571 wen
20 SW8260B 07/1211014:571 wen
1.0 SW8260B 07/12110 14:571 wen
1.0 SW8260B 07/1211014:571 wen
1.0 SW8260B 07/1211014:571 wen
1.0 SW8260B 07/12110 14:57/wen
80-120 SW8260B 07/1211014:571 wen
70-130 SW8260B 07/12110 14:57 1 wen
80-120 SW8260B 07/12110 14:57 1 wen
80-120 SW8260B 07/1211014:571 wen
MCL -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 80f30
EI\ERGY
• ,', () r ,~' I' J ~J ~
Halen., MT 871-472-0711 • Billings, MT 801-735-4489 . Casper, WY 818-235-0515
Gillette, WY 11&-1"-7175 • Rapid City, SD 88B-172-1225 • College StatiDn, TX 818-6BD-2218
LABORATORY ANALYTICAL REPORT
Client: Denison Mines USA Corp
Project: Annual Seeps and Springs
Lab 10: C10070314-004
Client Sample 10: Ruin Springs
Analyses
MAJOR IONS
Carbonate as C03
Bicarbonate as HC03
Calcium
Chloride
Fluoride
Magnesium
Nitrogen, Ammonia as N
Nitrogen, Nitrate+Nitrite as N
Potassium
Sodium
Sulfate
PHYSICAL PROPERTIES
pH
Solids, Total Dissolved TDS @ 180 C
METALS -DISSOLVED
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Iron
lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Tin
Uranium
Vanadium
Zinc
RADIONUCLIDES -DISSOLVED
Gross Alpha minus Rn & U
Gross Alpha minus Rn & U Precision (±)
Gross Alpha minus Rn & U MDC
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
NO
254
136
23
0.53
29.7
NO
1.7
3.07
93.4
447
7.51
903
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
17
ND
10.0
ND
ND
ND
8.47
ND
ND
0.2
0.3
0.5
Units
mg/l
mgll
mg/l
mg/l
mgll
mgll
mgll
mgll
mgll
mgll
mgll
S.u.
mg/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
ugll
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
pCi/l
pCi/l
pCi/l
MDC -Minimum detectable concentration
Report Date: 07/29/10
Collection Date: 07/07/10 11 :23
DateRecelved: 07/09/10
Matrix: Aqueous
MCll
Qualifiers Rl QCl Method Analysis Date 1 By
0
0
U
A2320 B 07/14/10 15:06/1r
1 A2320 B 07/14/1015:06 I Ir
0.50 E200.7 07/1211017:03 I cp
A4500-CI B 07/20/10 11 :26 I Ir
0.10 A4500-F C 07/15/10 15:24/1r
0.50 E200.7 07/1211017:031 cp
0.05 A4500-NH3 G 07/23/10 16:10/ljl
0.1 E353.2 07112110 21 :29 I Ijl
0.50 E200.7 07/12110 17:03 I cp
0.57 E200.7 07/12110 17:03 I cp
10 A4500-S04 E 07/19/1015:27 I Ir
0.01 A4500-H B 07/09/10 15:08/1r
10 A2540 C 07/09/10 15:03 /lr
5.0 E200.8 07/12110 19:49/15
0.50 E200.8 07/1211019:49/15
0.50 E200.8 07/12110 19:49/15
25 E200.8 07/12110 19:49/15
10 E200.8 07/12110 19:49/15
10 E200.8 07/12110 19:49 I ts
30 E200.7 07/12110 17:031 cp
1.0 E200.8 07/1211019:49/15
10 E200.8 07/1211019:49/15
0.50 E200.8 07/12110 19:49/ts
10 E200.8 07/1211019:49/15
20 E200.8 07/12110 19:49/15
5.0 E200.8 07/12110 19:49 I ts
10 E200.8 07/1211019:49 I ts
0.50 E200.8 07/12110 19:49/15
100 E200.8 07/12110 19:49/15
0.30 E200.8 07/12110 19:49/15
15 E200.8 07/12110 19:49/1s
10 E200.8 07/12110 19:49 I ts
E900.1 07/20/10 14:161 cgr
E900.1 07/20/1014:161 cgr
E900.1 07/20/1014:16 I cgr
MCl -Maximum contaminant level.
ND -Not detected at the reporting limit.
D -Rl increased due to sample matrix.
U -Not detected at minimum detectable concentration
Page 9 of 30
EN:RGY
1\' I ~I i, I ' ! J! •
Halena, MT 877-412-0711 • Billings, MT 801-735-4489 • Casper, ¥rf 888-235-0515
Gillatta, WY 81&-188-1175 • Rapid City, SD 888-172-1225 • ColIsge Station, TJ( 888-68D-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
LabID:
Denison Mines USA Corp
Annual Seeps and Springs
C 1 0070314-004
Client Sample ID: Ruin Springs
Analyses
DATA QUALITY
AlC Balance (± 5)
Anions
Cations
Solids, Total Dissolved Calculated
TDS Balance (O.BO -1.20)
VOLATILE ORGANIC COMPOUNDS
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
Methyl ethyl ketone
Methylene chloride
Naphthalene
Toluene
Xylenes. Total
Surr: 1,2-0ichlorobenzene-d4
Surr: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
RL -Analyte reporting limit.
QCl -Quality control limit.
Result
-3.14
14.3
13.4
BB2
1.02
NO
ND
ND
ND
NO
NO
ND
NO
ND
ND
114
113
116
106
Units
%
meq/L
meq/L
mg/L
ug/l
ug/L
ug/L
ug/L
ug/L
ug/l
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
Report Date: 07/29/10
Collection Date: 07/07/10 11 :23
DateReceived: 07/09/10
Matrix: Aqueous
MCLt
Qualifiers RL QCL Method Analysis Date 1 By
Calculation 07/21/10 OB:17/ kbh
Calculation 07/21/10 OB:171 kbh
Calculation 07/21/10 OB:171 kbh
Calculation 07/21/10 OB:17 1 kbh
Calculation 07/21/10 OB:17/ kbh
20 SWB260B 07/12110 15:331 wen
1.0 SWB260B 07/12110 15:331 wen
1.0 SWB260B 07/12110 15:331 wen
1.0 SWB260B 07/12110 15:331 wen
1.0 SWB260B 07/12110 15:33/wen
20 SW8260B 07/12110 15:33/wen
1.0 SW8260B 07/1211015:331 wen
1.0 SW8260B 07/12110 15:33 1 wen
1.0 SW8260B 07/12110 15:331 wen
1.0 SW8260B 07/12110 15:33/wen
80-120 SW8260B 07/12110 15:33/wen
70-130 SW8260B 07112110 15:33 I wen
80-120 SWB260B 07/1211015:331 wen
80-120 SW8260B 07/12110 15:33/wen
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 10 of 30
EN:RGY
"'"llt",' IfJ '
Helena, tIT 811-472-0711 • Billings, tIT 800-715-4419 • Casper, Wf 888-235-0515
Gillatta, WY 11&-188-7175 • Rapid City, SD 888-172-1225 • College StatiDn, 1X 888-69D-2218
LABORATORY ANALYTICAL REPORT
Client: Denison Mines USA Corp
Project: Annual Seeps and Springs
LabID: C10070314-005
Client Sample ID: Back Spring
Analyses
MAJOR IONS
Carbonate as C03
Bicarbonate as HC03
Calcium
Chloride
Fluoride
Magnesium
Nitrogen, Ammonia as N
Nitrogen, Nltrale+Nilrile as N
Potassium
Sodium
Sulfate
PHYSICAL PROPERTIES
pH
Solids, Tolal Dissolved TDS @ 180 C
METALS· DISSOLVED
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Iron
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Tin
Uranium
Vanadium
Zinc
RADIONUCLIDES -DISSOLVED
Gross Alpha minus Rn & U
Gross Alpha minus Rn & U Precision (±)
Gross Alpha minus Rn & U MOC
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
Result
NO
254
137
23
0.51
30.4
NO
1.7
3.08
97.4
444
7.55
950
NO
NO
NO
NO
NO
NO
36
NO
NO
NO
17
NO
9.5
NO
NO
NO
8.52
NO
NO
0.3
0.3
0.5
Units
mg/l
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
s.u.
mg/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
pCi/L
pCi/L
pCilL
MOC -Minimum detectable concentration
Report Date: 07/29/10
Collection Date: 07/07/10 11 :23
DateReceived: 07/09/10
Matrix: Aqueous
MCll
Qualifiers Rl QCl Method Analysis Date 1 By
0
0
U
A2320 B 07/14/10 15:14/1r
A2320 B 07/14/10 15:14/1r
0.50 E200.7 07/1211017:071 cp
A4500-CI B 07/20/10 11 :28 1 Ir
0.10 A4500-F C 07/15/10 15:34/1r
0.50 E200.7 07/12110 17:071 cp
0.05 A4500-NH3 G 07/23/10 16:12/1jl
0.1 E353.2 07/1211021 :32 1 Ijl
0.50 E200.7 07/12110 17:071 cp
0.57 E200.7 07/12110 17:071 cp
10 A4500-S04 E 07/19/10 15:29 /lr
0.01 A4500-H B 07/09/10 15:11 Ilr
10 A2540 C 07109/10 15:041 Ir
5.0 E200.8 07/1211019:561 Is
0.50 E200.8 07/12110 19:561 Is
0.50 E200.8 07/12110 19:561 Is
25 E200.8 07/1211019:561 ts
10 E200.8 07/1211019:561 Is
10 E200.8 07/12110 19:561 ts
30 E200.7 07/1211017:07/ cp
1.0 E200.8 07/1211019:561 Is
10 E200.8 07/12110 19:561 Is
0.50 E200.8 07/12110 19:561 ts
10 E200.8 07/12110 19:561 ts
20 E200.8 07/12110 19:561 ts
5.0 E200.8 07/1211019:561 ts
10 E200.8 07/1211019:561 ts
0.50 E200.8 07/12110 19:561 ts
100 E200.8 07/12110 19:561 ts
0.30 E200.8 07/12110 19:561 ts
15 E200.8 07/12110 19:561 ts
10 E200.8 07112/10 19:56/1s
E900.1 07/20/1014:16/ cgr
E900.1 07/20/1014:16/ cgr
E900.1 07/20/1014:161 cgr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
o -Rl increased due to sample matrix.
U -Not detected at minimum detectable concentration
Page 11 of 30
EN:RGY
,-,. \ ~ ) i ',. i' I (I! •
www.energylab.com
AHIIIIaI &ulIMa au 1m
Helen., tIT 877-412-0111 • Billings, tIT 801-135-4489 • Casper, WY 888-235-0515
Gillatte, WY 118-886-1175 • Rapid City, SD 818-112-1225 • Collage Station, TX 888-&90-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
LabID:
Denison Mines USA Corp
Annual Seeps and Springs
C10070314-005
Client Sample ID: Back Spring
Analyses
DATA QUALITY
AlC Balance (± 5)
Anions
Cations
Solids, Total Dissolved Calculated
TDS Balance (0.80 -1.20)
VOLATILE ORGANIC COMPOUNDS
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
Methyl ethyl ketone
Methylene chloride
Naphthalene
Toluene
Xylenes. Total
Surr: 1.2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
Result
-1.92
14.2
13.7
885
1.07
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
109
108
112
106
Un"s
%
meqll
meqll
mgll
ug/L
ug/l
ug/l
ug/l
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
%REC
%REC
%REC
%REC
Report Date: 07/29/10
Collection Date: 07/07/10 11 :23
DateRecelved: 07/09/10
Matrix: Aqueous
MCLI
Qualifiers RL QCL Method Analysis Date 1 By
Calculation 07/21/10 08:181 kbh
Calculation 07/21/1008:181 kbh
Calculation 0712111008:181 kbh
Calculation 07/21/1008:181 kbh
Calculation 07/21/1008:181 kbh
20 SW8260B 07/1211016:081 wen
1.0 SW8260B 07/1211016:081 wen
1.0 SW8260B 07/12110 16:081 wen
1.0 SW8260B 07/12110 16:081 wen
1.0 SW8260B 07/12110 16:081 wen
20 SW8260B 07/12110 16:08 1 wen
1.0 SW8260B 07/1211016:081 wen
1.0 SW8260B 07/12110 16:081 wen
1.0 SW8260B 07/12110 16:081 wen
1.0 SW8260B 07/12110 16:081 wen
80-120 SW8260B 07/12110 16:081 wen
70-130 SW8260B 07/1211016:081 wen
80-120 SW8260B 07/12110 16:081 wen
80-120 SW8260B 07/12110 16:081 wen
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 12 of 30
EN:RGY
"" )1., j ' I II ._
Helena, tofT 817-472-0711 • Billings, MT 801-735-4411 • Casper, WY 888-235-0515
Gillette, WY 11&-&88-7175 • Rapid City, SD 888-&72-1225 • College Station, 1X 888-&9D-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
Annual Seeps and Springs
C 1 0070314-006
Client Sample 10: Trip Blank
Analyses
VOLATILE ORGANIC COMPOUNDS
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
Methyl ethyl ketone
Methylene chloride
Naphthalene
Toluene
Xylenes, Total
Surr: l,2-0ichlorobenzene-d4
Surr: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analy1e reporting limit.
QCl -Quality control limit.
Result
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
110
104
114
106
Units
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/l
%REC
%REC
%REC
%REC
Report Date: 07/29/10
Collection Date: 07108/10
DateRecelved: 07109/10
Matrix: Aqueous
MCL!
Qualifiers RL QCL Method Analysis Date 1 By
20 SW8260B 07/12110 16:43/wen
1.0 SW8260B 07/12110 16:431 wen
1.0 SW8260B 07/12110 16:431 wen
1.0 SW8260B 07/12110 16:431 wen
1.0 SW8260B 07/1211016:431 wen
20 SW8260B 07/12110 16:43/wen
1.0 SW8260B 07/12110 16:431 wen
1.0 SW8260B 07/12110 16:43 1 wen
1.0 SWB260B 07/12110 16:43 1 wen
1.0 SW8260B 07/12110 16:43 1 wen
80-120 SW8260B 07/12110 16:431 wen
70-130 SW8260B 07/12110 16:431 wen
80-120 SW8260B 07/12110 16:431 wen
80-120 SW8260B 07/1211016:431 wen
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 13 of 30
EI\ERGY
/" l)f '" 1 ( I, I •
www.energylab.com
AIII/ftIaI£raI'Mw!IM 'lSI
HBlens, MT 877-472-0111 • Billings, MT 808-735-4411 . Casper, WY 888-235-0515
Gillatta, WY 81&-888·7175 • Rapid City, SD 888·172·1225 • College Station, 1X 888-691·2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
Annual Seeps and Springs
C10070314·007
Client Sample 10: Temp Blank
Analyses
PHYSICAL PROPERTIES
Temperature
Repon
Definitions:
Rl -Analyte reporting limit.
Qel -Quality control limit.
Result Units
3.0
Report Date: 07/29/10
Collection Date: 07108/10
DateReceived: 07109/10
Matrix: Aqueous
MClI
Qualifiers Rl QCl Method Analysis Date 1 By
E170.1 07109/1009:00/ kbh
Mel -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 14 of 30
EN:RGY
/\H _),.:", III" _
Helene, MT 877-472-0711 • Billings, MT 808-735-4489 • Casper, WV 888-235-0515
Gillette, WY 816-888-7175 • Rapid City, SD 888-872-1225 . College Station, 1X 888-691-2211
QA/QC Summary Report
Client: Denison Mines USA Corp
Project: Annual Seeps and Springs
Analyte
Method: A2320 B
Sample 10: MBLK
Alkalinity, Total as CaC03
Carbonate as C03
Bicarbonate as HC03
Sample 10: LCS1
Alkalinity, Total as CaC03
Sample 10: C10070314-001AMS
Alkalinity, Total as CaC03
Sample 10: C10070314-001AMSO
Alkalinity, Total as CaC03
Qualifiers:
RL -Analyte reporting limit.
Count Result Units
3 Method Blank
NO
ND
ND
mg/L
mg/L
mg/L
Laboratory Control Sample
215 mg/L
Sample Matrix Spike
404 mg/L
Sample Matrix Spike Duplicate
406 mg/L
MOC -Minimum detectable concentration
Report Date: 07/29/10
Work Order: C10070314
RL %REC Low limit High Limit
Run: MANTECH_1 00715A
Run: MANTECH_100715A
5.0 108 90 110
Run: MANTECH_100715A
5.0 105 80 120
Run: MANTECH_100715A
5.0 107 80 120
NO -Not detected at the reporting limit.
RPO RPOLImit Qual
0.5
Batch: R134898
07/14/1012:41
07/14/10 12:57
07/14/10 14:24
07/14/1014:33
20
Page 15 of 30
EN:RGY
;\r. ~I·'" I r~ ," l •
Halena, MT 877-472-0711 • Billings, MT 801-735-4489 • Caspar, WY 888-235-0515
Gillette, W'i 81&-888-7175 • Rapid City, SD 888-872-1225 • College Station, TX 888-&90-2218
QA/QC Summary Report
Client: Denison Mines USA Corp
Project: Annual Seeps and Springs
Analyte Count Result
Method: A2540 C
Sample 10: MBLKC100709
Solids, Total Dissolved TDS @ 180 C
Method Blank
ND
Units
mg/L
Sample 10: LCS1_100709 Laboratory Control Sample
Solids, Total Dissolved TDS @ 180 C 1000 mg/L
Sample 10: C10070314-005AMS Sample Matrix Spike
Solids, Total Dissolved TDS @ 180 C 2870 mg/L
Sample 10: C10070314-005AMSO Sample Matrix Spike Duplicate
Solids, Total Dissolved TDS @ 180 C 2810 mg/L
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
Report Date: 07/29/10
Work Order: C10070314
RL %REC Low Limit High limit
Run: BAL-1_100709B
10
Run: BAL-1_100709B
10 100 90 110
Run: BAL-1_1007098
10 96 90 110
Run: BAL-1 100709B -10 95 90 110
ND -Not detected at the reporting limit.
RPO RPOLlmlt Qual
Batch: 100709_1_SLDS-TDS-W
07109/1014:58
07109/1014:58
07109/10 15:04
07109/10 15:04
2 10
Page 16 of 30
EI\ERGY
1,,, 1'1/1',
www.energylab.com
ADIyIIaI EIuIMa!llra 1m
Helena, tIT 817-472-0711 -Billings, tIT BOD-735-44II -Caspar, 'NY 888-235-0515
Gillatta, WY 118-688-7175 -Rapid City, SD 8IB-112-1225 -College Station, TX 888-&10-2218
QA/QC Summary Report
Client: Denison Mines USA Corp
Project: Annual Seeps and Springs
Analyte Count Result Units
Method: A4500-CI B
Sample 10: MBLK9-100720
Chloride
Sample 10: C10061049-D01AMS
Chloride
Sample 10: C10061049-001AMSO
Chloride
Sample 10: LCS35-100720
Chloride
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
Method Blank
ND mg/L
Sample Matrix Spike
37.9 mg/L
Sample Matrix Spike Duplicate
38.2 mg/L
Laboratory Control Sample
3610 mg/L
Repon Date: 07/29/10
Work Order: C10070314
RL %REC Low Limit High Limit RPO RPDLlmit Qual
Batch: 100720-CL-TTR-W
Run: TITRATION_100720A 07/20/1011 :10
0.4
Run: TITRATION_1 00720A 07/20/10 11 :40
1.0 99 90 110
Run: TITRATION_100720A 07/20/1011 :42
1.0 100 90 110 0.9 10
Run: TITRATlON_100720A 07/20/1012:09
1.0 102 90 110
ND -Not detected at the reporting limit.
Page 17 of 30
EN:RGY
/\hL)II,' I' 1./1 •
Client: Denison Mines USA Corp
Project: Annual Seeps and Springs
Helena, lIlT 877-472-0711 • BiIIlnlls, lIlT BDI-m-4411 • Caspar, WY 888-235-0515
Gillatta, W'f 818-886-7175 • Rapid City, SD 888-172-1225 • CollellD Station,1X 888-BID-2218
QA/QC Summary Report
Report Date: 07/29/10
Work Order: C10070314
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPDLlmlt Qual
Method: A4500-F C
Sample 10: MBLK
Fluoride
Sample 10: LCS
Fluoride
Sample 10: C10070314-003AMS
Fluoride
Sample 10: C10070314-003AMSO
Fluoride
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
Batch: R134944
Method Blank Run: MANTECH_l00715B 07/15/1012:30
ND mg/L 0.05
Laboratory Control Sample Run: MANTECH_l00715B 07/15/1012:37
1.02 mg/L 0.10 102 90 110
Sample Matrix Spike Run: MANTECH_l00715B 07/15/1015:16
1.41 mg/L 0.10 103 80 120
Sample Matrix Spike Duplicate Run: MANTECH_l00715B 07/15/1015:21
1.44 mg/L 0.10 106 80 120 2.1 10
ND -Not detected at the reporting limit.
Page 18 of 30
EN:RGY
,d-l' .'IU I' ,~l'
www.enerKYIab.com
AMIytIaI EJruIIwa SIIIu llU
Helena, MT 177-412-0711 • Billings, MT 800-735-4418 • Casper, WY 888-235-8515
Gillette, WY 11&-188-7175 • Rapid City, SD 888-172-1225 • College Station, TX 888-69D-2218
QA/QC Summary Report
Client: Denison Mines USA Corp
Project: Annual Seeps and Springs
Report Date: 07/29/10
Work Order: C10070314
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimlt Qual
Method: A4500-H B
Sample 10: ICVC100709_1
pH
Method: A4500-H B
Sample 10: C10070314-002AOUP
pH
Qualifiers:
RL -Analyte reporting limit.
MOC -Minimum detectable concentration
Initial Calibration Verification Standard
6.79 s.u. 0.010 99
Sample Duplicate
7.38 s.u. 0.010
98
Analytical Run: ORION555A-2_100709A
07/09/1014:30
102
Batch: 100709_2_PH-W_555A-2
Run: ORION555A-2_100709A 07/09/1015:02
o 10
NO -Not detected at the reporting limit.
Page 19 of 30
E"-ERGY
" I J' ~, ' I I .. ' ._
Client: Denison Mines USA Corp
Project: Annual Seeps and Springs
Helena, tofT 877-472-0711 • Billings, MT 801-735-4419 • Casper, 'IN 888-235-0515
Gillatte, WY 816-888-7175 • Rapid City, SD 888-112-1225 • College Station, 1X 888-690-2218
QA/QC Summary Report
Report Date: 07/29/10
Work Order: C10070314
Analyte Count Result Units RL %REC Low LImit High Limit RPO RPOLimlt Qual
Method: A4500-NH3 G
Sample 10: MBLK-1
Nitrogen, Ammonia as N
Sample 10: LCS-2
Nitrogen, Ammonia as N
Sample ID: C10070314-002DMS
Nitrogen, Ammonia as N
Sample 10: C10070314-0020MSO
Nitrogen, Ammonia as N
Qualifiers:
RL -Analyte reporting limit.
MOC -Minimum detectable concentration
8atch: R135243
Method Blank Run: TECHNiCON_1 007238 07/23/1015:48
NO mg/L 0.02
Laboratory Control Sample Run: TECHNICON_1007238 07/23/10 15:50
19.8 mg/L 0.50 99 80 120
Sample Matrix Spike Run: TECHNICON_1007238 07/23/10 16:02
2.58 mg/L 0.050 104 80 120
Sample Matrix Spike Duplicate Run: TECHNICON_1 007238 07/23/10 16:04
2.57 mg/L 0.050 103 80 120 0.4 20
ND -Not detected at the reporting limit.
Page 20 of 30
EN:RGY
,', l ) I " I' f ~ I
Client: Denison Mines USA Corp
Project: Annual Seeps and Springs
Haiena,lIT 871-412-0111 • Billings, lIT 801-135-4489 • Caspar, 'NY 888-235-0515
Gillette, 'NY 818-188-1115 • Rapid City, SD 888-172-122& • College Station, 1X 888-690-2218
QA/QC Summary Report
Report Date: 07/29/10
Work Order: C10070314
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimlt Qual
Method: A4500-S04 E
Sample 10: LCS-C100719
Sulfate
Sample 10: MBLK-1_100719
Sulfate
Sample 10: C10070314-00SAMS
Sulfate
Sample 10: C10070314-005AMSO
Sulfate
Qualifiers:
RL -Analyte reporting limit.
MOC -Minimum detectable concentration
Batch: 100719_1_S04-TURB-W
Laboratory Control Sample Run: TURB-2_100719A 07/19/1015:10
5000 mg/L 100 104 90 110
Method Blank Run: TURB-2_100719A 07/19/1015:12
0.6 mg/L 0.6
Sample Matrix Spike Run: TURB-2_100719A 07/1911015:35
632 mg/L 10 98 90 110
Sample Matrix Spike Duplicate Run: TURB-2_1 00719A 07/19/10 15:36
638 mg/L 10 101 90 110 10
NO -Not detected at the reporting limit.
Page 21 of 30
EN:RGY
,. r '>~. __ I (1./1 '
Client: Denison Mines USA Corp
Project: Annual Seeps and Springs
Helena, MT 111-412-0711 • Billings, MT 801-735-4419 • Caspar, WY 888-235-0515
Gillette, WY 118-188-7175 • Rapid City, SD 888-172-1225 . College Station, TX 888-69D-2218
QA/QC Summary Report
Report Date: 07/29/10
Work Order: C10070314
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLlmlt Qual
Method: E200.7
Sample 10: MB·100712A
Calcium
Iron
Magnesium
Potassium
Sodium
Sample 10: LFB-100712A
Calcium
Iron
Magnesium
Potassium
Sodium
Sample 10: C10070206-002CMS2
Calcium
Iron
Magnesium
Potassium
Sodium
5
5
5
Sample 10: C10070206-002CMSO 5
Calcium
Iron
Magnesium
Potassium
Sodium
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
Method Blank
ND mg/L
ND mg/L
ND mg/L
ND mg/L
ND mg/L
Laboratory Fortified Blank
47.9 mg/L
0.960 mg/L
47.8 mg/L
45.9 mg/L
47.6 mg/L
Sample Matrix Spike
157 mg/L
2.08 mg/L
107 mg/L
98.4 mg/L
119 mg/L
Sample Matrix Spike Duplicate
149 mg/L
1.99 mg/L
103 mg/L
99.9 mg/L
122 mg/L
0.2
0.002
0.05
0.02
0.3
0.50
0.030
0.50
0.50
0.50
1.0
0.030
1.0
1.0
1.0
1.0
0.030
1.0
1.0
1.0
Run: ICP2-C_l00712A
Run: ICP2-C_l00712A
96 85 115
96 85 115
96 85 115
92 85 115
95 85 115
Run: ICP2-C_l00712A
105 70 130
102 70 130
103 70 130
92 70 130
95 70 130
Run: ICP2-C_l00712A
97 70 130
98 70 130
99 70 130
94 70 130
97 70 130
ND -Not detected at the reporting limit.
Page 22 of 30
5.2
4.5
3.3
1.6
2.4
Batch: R134776
07/1211012:29
07/12/1012:33
07112/10 17:27
07/1211017:31
20
20
20
20
20
EI\ERGY
/~ I.... 'i ~ I T ~ I", J •
Halena, MT 877-472-0711 -Billings, MT 800-715-4411 -Caspar, WY 888-235-0515
Gillette, WY 81B-888-7175 -Rapid City, SD 888-172-1225 -College Station, 1X 888-&9D-2218
QA/QC Summary Report
Client: Denison Mines USA Corp
Project: Annual Seeps and Springs
Analyte Count
Method: E200.8
Result
Sample 10: LRB 18 Method Blank
Arsenic NO
Beryllium NO
Cadmium NO
Chromium 0.0001
Cobalt NO
Copper NO
Lead NO
Manganese NO
Mercury NO
Molybdenum NO
Nickel NO
Selenium NO
Silver 5E-05
Thallium NO
Tin 0.0003
Uranium NO
Vanadium NO
Zinc 0.0005
UnIts
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
Report Date: 07/29/10
Work Order: C10070314
RL %REC Low Limit HIgh Limit RPO RPDLimlt Qual
SE-05
3E-05
lE-05
4E-05
2E-05
7E-05
3E-05
5E-05
8E-05
5E-05
0.0007
0.0002
3E-05
lE-05
BE-05
lE-05
3E-05
0.0003
Run: ICPMS2-C_l00712A
Batch: R134782
07/1211017:40
Sample 10: LFB 18 Laboratory Fortified Blank Run: ICPMS2-C_l00712A 07/1211017:47
Arsenic 0.0513 mg/L 0.0010 103 85 115
Beryllium 0.0507 mg/L 0.0010 101 85 115
Cadmium 0.0503 mg/L 0.0010 101 85 115
Chromium 0.0512 mg/L 0.0010 102 85 115
Cobalt 0.0503 mg/L 0.0010 101 85 115
Copper 0.0517 mg/L 0.0010 103 85 115
Lead 0.0505 mg/L 0.0010 101 85 115
Manganese 0.0502 mg/L 0.0010 100 85 115
Mercury 0.00508 mg/L 0.0010 102 85 115
Molybdenum 0.0507 mg/L 0.0010 101 65 115
Nickel 0.0518 mg/L 0.0010 104 65 115
Selenium 0.0510 mg/L 0.0010 102 85 115
Silver 0.0198 mg/L 0.0010 99 65 115
Thallium 0.0491 mg/L 0.0010 98 85 115
Tin 0.0494 mg/L 0.0010 96 65 115
Uranium 0.0489 mg/L 0.00030 98 85 115
Vanadium 0.0501 mg/L 0.0010 100 65 115
Zinc 0.0574 mg/L 0.0010 114 85 115
Sample 10: C10070031-001BMS4 18 Sample Matrix Spike Run: ICPMS2-C_100712A 07/12/10 19:15
Arsenic 0.053 mg/L 0.0010 102 70 130
Beryllium 0.051 mg/L 0.0010 103 70 130
Cadmium 0.051 mg/L 0.0010 101 70 130
Chromium 0.052 mg/L 0.050 103 70 130
Cobalt 0.049 mg/L 0.010 97 70 130
Qualifiers:
RL -Analy1e reporting limit. NO -Not detected at the reporting limit.
MOC -Minimum detectable concentration
Page 23 of 30
EN:RGY
) ! I 'JI./ I ~ H' •
Helena, MT 877-412-0711 • Billings, MT 800-735-4419 • Casper, WY 888-235-0515
Gillette, WY 818-888-7175 • Rapid City, SD 188-172-1225 • College Station, 1X 888-190-2218
QA/QC Summary Report
Client: Denison Mines USA Corp Report Date: 07/29/10
Project: Annual Seeps and Springs Work Order: C10070314
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLlmlt Qual
Method: E200.8 Batch: R134782
Sample 10: C10070031-D01BMS4 18 Sample Matrix Spike Run: ICPMS2-C_100712A 07/12110 19:15
Copper 0.049 mg/L 0.010 98 70 130
Lead 0.051 mg/L 0.0010 102 70 130
Manganese 0.050 mg/L 0.010 100 70 130
Mercury 0.0051 mg/L 0.0010 101 70 130
Molybdenum 0.052 mg/L 0.0010 103 70 130
Nickel 0.049 mg/L 0.0010 97 70 130
Selenium 0.053 mg/L 0.0010 101 70 130
Silver 0.016 mg/L 0.010 78 70 130
Thallium 0.050 mg/L 0.00040 100 70 130
Tin 0.050 mg/L 0.0010 99 70 130
Uranium 0.052 mg/L 0.00030 100 70 130
Vanadium 0.053 mg/L 0.0020 102 70 130
Zinc 0.054 mg/L 0.010 105 70 130
Sample 10: C10070031·001BMSO 18 Sample Matrix Spike Duplicate Run: ICPMS2-C_100712A 07/12/10 19:22
Arsenic 0.054 mg/L 0.0010 104 70 130 2.2 20
Beryllium 0.051 mg/L 0.0010 101 70 130 1.1 20
Cadmium 0.051 mg/L 0.0010 101 70 130 0.2 20
Chromium 0.051 mg/L 0.050 102 70 130 20
Cobalt 0.048 mg/L 0.010 96 70 130 1.2 20
Copper 0.050 mg/L 0.010 99 70 130 1.2 20
Lead 0.051 mg/L 0.0010 102 70 130 0.5 20
Manganese 0.049 mg/L 0.010 99 70 130 0.9 20
Mercury 0.0051 mg/L 0.0010 102 70 130 0.6 20
Molybdenum 0.053 mg/L 0.0010 104 70 130 0.9 20
Nickel 0.050 mg/L 0.0010 98 70 130 1.6 20
Selenium 0.053 mg/L 0.0010 102 70 130 0.3 20
Sliver 0.016 mg/L 0.010 80 70 130 3.4 20
Thallium 0.050 mg/L 0.00040 101 70 130 0.9 20
Tin 0.051 mg/L 0.0010 103 70 130 3.2 20
Uranium 0.053 mg/L 0.00030 102 70 130 1.1 20
Vanadium 0.052 mg/L 0.0020 100 70 130 1.4 20
Zinc 0.054 mg/L 0.010 104 70 130 0.1 20
Qualifiers:
RL -Analyte reporting limit. ND -Not detected at the reporting limit.
MOC -Minimum detectable concentration
Page 24 of 30
EN:RGY
,'f. )11/'1, III'
Client: Denison Mines USA Corp
Project: Annual Seeps and Springs
Helena, MT 877-472-0711 -Billings, MT 809-735-4411 -Casper, WY 188-235-0515
Gillatta, WY IIB-B88-7175 -Rapid City, SD 888-&72-1225 -College Siallon, 1X 888-BID-2218
QA/QC Summary Report
Report Date: 07/29/10
Work Order: C10070314
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimlt Qual
Method: E353.2
Sample 10: MBLK-1
Nitrogen, Nitrate+Nltrite as N
Sample 10: LCS-2
Nitrogen, Nitrate+Nitrite as N
Sample 10: C10070327-o03GMS
Nitrogen, Nitrate+Nitrite as N
Sample 10: C10070327-003GMSO
Nitrogen, Nitrate+Nitrite as N
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
Method Blank Run: TECHNICON_l00712A
NO mg/L 0.03
Laboratory Control Sample Run: TECHNICON_1 00712A
2.48 mg/L 0.10 99 90 110
Sample Matrix Spike Run: TECHNICON_100712A
1.86 mg/L 0.10 93 90 110
Sample Matrix Spike Duplicate Run: TECHNICON_1 00712A
1.84 mg/L 0.10 92 90 110
NO -Not detected at the reporting limit.
Page 25 of 30
1.1
Batch: R134772
07/12/1015:47
07/12/10 15:49
07/1211021 :54
07/12/10 21 :57
10
EN:RGY
n r,,)j,: I' III
Client: Denison Mines USA Corp
Project: Annual Seeps and Springs
Halena, lIT 871-472-0711 • Billings, lIT 801-735·4411 • Caspar, W'f 188-235·0515
Gillette, WY 118-188·7175 • Repid City, SD 188-&72-1225 • College Station, TX 188-691·2218
QA/QC Summary Report
Report Date: 07/29/10
Work Order: C10070314
Analyte Count Result Units RL %REC Low Limit High LImit RPO RPOLimlt Qual
Method: E900.1
Sample 10: MB·GA·0335
Gross Alpha minus An & U
3 Method Blank
Gross Alpha minus An & U Precision (±)
Gross Alpha minus An & U MDC
Sample 10: LCS·GA-D335
Gross Alpha minus An & U
Sample 10: C10070314-005CMS
Gross Alpha minus An & U
Sample 10: C10070314-005CMSO
Gross Alpha minus An & U
Qualifiers:
AL -Analyte reporting limit.
MDC -Minimum detectable concentration
0.1 pCi/L
0.3 pC ilL
O.S pCi/L
Laboratory Control Sample
28.3 pCi/L
Sample Matrix Spike
2S.7 pCi/L
Sample Matrix Spike Duplicate
27.7 pCi/L
Aun:GSOOOVV_100716A
Aun: GSOOOVV_100716A
107 70 130
Aun: GSOOOVV_100716A
97 70 130
Aun:GSOOOVV_100716A
104 70 130 7.S
NO -Not detected at the reporting limit.
U -Not detected at minimum detectable concentration
Page 26 of 30
Batch: GA-033S
07/20/10 14:16
U
07/20/10 14:16
07/20/1014:16
07/20/10 14:16
23.7
EN:RGY
,"d l_'J,/ I ( if! ~
'P.',I" ~ Heiena,lIfT 877-472-0711 • Billings, MT 801-735-4419 • Casper, VN 188-235-0515
Gillette, 'NY 81S-188-7175 . Rapid City, SD 888-172-1225 • College Slalion, TX 888-688-2218
QA/QC Summary Report
Client: Denison Mines USA Corp
Project: Annual Seeps and Springs
Analyte Count
Method: SW8260B
Result Units RL %REC Low Limit
Report Date: 07/29/10
Work Order: C10070314
High Limit RPO RPOLlmlt Qual
Batch: R134B4B
Sample 10: 12.Jul-10_LCS_3 16 Laboratory Control Sample Run: GCMS2_100712A 07/1211010:3B
Acetone B1 ug/L 20 B1 70 130
Benzene 10 ug/L 1.0 101 70 130
Carbon tetrachloride 9.9 ugiL 1.0 99 70 130
Chloroform 10 ugiL 1.0 100 70 130
Chloromethane 9.4 ug/L 1.0 94 70 130
m+p-Xylenes 19 ug/L 1.0 94 70 130
Methyl ethyl ketone 7B ug/L 20 7B 70 130
Methylene chloride 9.9 ugiL 1.0 99 70 130
Naphthalene 7.9 ugiL 1.0 79 70 130
a-Xylene 9.6 ugiL 1.0 96 70 130
Toluene 10 ug/L 1.0 103 70 130
Xylenes, Total 2B ug/L 1.0 94 70 130
Surr: 1,2-0ichlorobenzene-d4 1.0 109 80 120
Surr: Oibromofluoromethane 1.0 106 70 130
Surr: p-Bromofluorobenzene 1.0 102 BO 130
Surr: Toluene-dB 1.0 109 BO 120
Sample 10: 12.Jul-10_MBLK_6 16 Method Blank Run: GCMS2_100712A 07/12110 12:25
Acetone NO ug/L 20
Benzene NO ugiL 1.0
Carbon tetrachloride NO ug/L 1.0
Chloroform NO ugiL 1.0
Chloromethane NO ugiL 1.0
m+p-Xylenes NO ugiL 1.0
Methyl ethyl ketone NO ugiL 20
Methylene chloride NO ugiL 1.0
Naphthalene NO ugiL 1.0
a-Xylene NO ug/L 1.0
Toluene NO ug/L 1.0
Xylenes. Total NO ug/L 1.0
Surr: 1.2-0ichlorobenzene-d4 1.0 109 BO 120
Surr: Oibromofluoromethane 1.0 100 70 130
Surr: p-Bromofluorobenzene 1.0 116 80 120
Surr: Toluene-d8 1.0 100 80 120
Sample 10: C10070327-G061MS 16 Sample Matrix Spike Run: GCMS2_100712A 07/13/100B:44
Acetone 1800 ug/L 400 8B 70 130
Benzene 200 ug/L 20 101 70 130
Carbon tetrachloride 210 ugiL 20 104 70 130
Chloroform 220 ug/L 20 103 70 130
Ch lorom ethane 210 ug/L 20 104 70 130
m+p-Xylenes 390 ugiL 20 9B 70 130
Methyl ethyl ketone 1500 ugiL 400 76 70 130
Methylene chloride 200 ug/L 20 99 70 130
Naphthalene 160 ugiL 20 B2 70 130
Qualifiers:
RL -Analyte reporting limit. NO -Not detected at the reporting limit.
MOC -Minimum detectable concentration
Page 27 of 30
EN:RGY
:, .\)1,',1',: I .
www.energylab.com
AMIfIIaI EIuIItIIa au /151
Heiena, MT 871-412-0711 • Billings, MT 801-715-448. • Casper, W'f 888-235-8515
Gilletta, WY 11&-188-7175 • Rapid City, SD 888-172-1225 • College Station, 1X 888-&91-2218
QA/Qe Summary Report
Client: Denison Mines USA Corp Report Date: 07/29/10
Project: Annual Seeps and Springs Work Order: C10070314
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLlmlt Qual
Method: SW8260B Batch: R134848
Sample 10: C10070327-0061MS 16 Sample Matrix Spike Run: GCMS2_100712A 07/13/10 08 :44
o-Xylene 200 ug/L 20 98 70 130
Toluene 210 ug/L 20 103 70 130
Xylenes, Total 590 ug/L 20 98 70 130
Surr: 1,2-0ichlorobenzene-d4 1.0 107 80 120
Surr: Dibromofluoromethane 1.0 106 70 130
Surr: p-Bromofluorobenzene 1.0 102 80 120
Surr: Toluene-d8 1.0 106 80 120
Sample 10: C10070327-OO61MSO 16 Sample Matrix Spike Duplicate Run: GCMS2_100712A 07/13/1009:19
Acetone 1800 ug/L 400 90 70 130 2.3 20
Benzene 210 ug/L 20 103 70 130 2.4 20
Carbon tetrachloride 210 ug/L 20 107 70 130 3 20
Chloroform 230 ug/L 20 106 70 130 2.5 20
Chloromethane 210 ug/L 20 103 70 130 0.4 20
m+p-Xylenes 390 ug/L 20 98 70 130 0.2 20
Methyl ethyl ketone 1600 ug/L 400 78 70 130 2.6 20
Methylene chloride 200 ug/L 20 101 70 130 2 20
Naphthalene 170 ug/L 20 84 70 130 2.4 20
o-Xylene 200 ug/L 20 98 70 130 0 20
Toluene 210 ug/L 20 104 70 130 1.2 20
Xylenes, Total 590 ug/L 20 98 70 130 0.1 20
Surr: 1,2-Dichlorobenzene-d4 1.0 107 80 120 0 10
Surr: Dibromofluoromethane 1.0 106 70 130 0 10
Surr: p-Bromofluorobenzene 1.0 103 eo 120 0 10
Surr: Toluene-d8 1.0 107 eo 120 0 10
Qualifiers:
RL -Analyte reporting limit. NO -Not detected at the reporting limit.
MOC -Minimum detectable concentration
Page 28 of 30
EN:RGY
r . ,{)I I \ I' I ~ I
www.energylab.com
AHII/IaI &uIIWa SItIu 1m
Helene, MT 877-412-0711 • Blllinls, MT 800-735-4489 • Casper, WY 888-235-0515
Gillette, WY IBB-BU-7U5 • Rapid City, SD 818-672-1225 • College Station, 1X 888-680-2218
Workorder Receipt Checklist
Denison Mines USA Corp
111111111111111111111111111 ~III ~III I111111111 ~II
C10070314
Login completed by: Corinne Wagner
Reviewed by: BL2000\kschroeder
Reviewed Date: 7/12/2010
Shipping container/cooler in good condition?
Custody seals intact on shipping container/cooler?
Custody seals intact on sample bottles?
Chain of custody present?
Chain of custody signed when relinquished and received?
Chain of custody agrees with sample labels?
Samples in proper container/bottie?
Sample containers intact?
Sufficient sample volume for indicated test?
All samples received within holding time?
ContainerfTemp Blank temperature:
Water -VOA vials have zero headspace?
Water -pH acceptable upon receipt?
Contact and Corrective Action Comments:
None
Yes 0'
Yes 0'
Yes D
Yes 0'
Yes 0'
Yes 0'
Yes 0'
Yes 0'
Yes 0'
Yes 0'
3·C On Ice
Yes 0'
Yes 0'
Date Received: 7/9/2010
Received by: em
Carrier name: FedEx
No D
No D
No D
No D
No D
No D
No D
No D
No D
No D
No D
No D
Not Present D
Not Present D
Not Present 0'
No VOA vials submitted D
Not Applicable D
Page 29 of 30
-u Dl tC CD
W o
o -w o
Chain of Custody and Analytical Request Record Page -I--of ~ rUmt97 . PLEASE PRINT (Provide as much information as Dosslble.)
Company Name: Project Name, PWS, Permit, Etc. Sample Origin EPA/State Compliance:
DWI~6N MI~\ 11 .d t""A ~ ,t ~,,-.~ { State: lA r" Yes~ No 0
Report Mail Ae.~: ~ KDf Contact Name: r Phonek:ax: I Email: ~p1er: (Please Print)
~/U ~J_/ t,~#7?~1 Z':r(~ ~/"",jt",a u.:r X4S) I
Invoice Address: I InvoicdContact & Phone: Purchase Order: ado1elBottie Order:
_~"'...J ~S~
Special Report/Formats: :?; &OOLiill. ~@O@ OO§@)(ill~ .. Contact ELI prior to IJnlj{(fc V
0 .... RUSH sample submittal
~O(f.)~ ~ for charges and Cooler Dis):
~CD;gOI ~ I'§ a R scheduling -See (J /'v'; I-._> 0 >oro UJ !:::. Instruction Page o DW 0 EDD/EDT(Electronic Data) ~en~~:?; ~ :::r: '0 R~lptTemp D POTWfWWTP Format 3:'88 en I ~ U c: Comments: ~o&"(enl-~ :l U .5 °c o .... ml £: <t: 0 o State: 0 LEVEL IV '-~ iHi! §ti I~ ~ ~ (0 c (~ N D Other: 0 NELAC ~riii ' ... On Ice: :l ~-!~'l~ l-S ~ W "E Custody Seal ~
~ >1 i W (0 OnBottle vii' en '0 en £: ~~ fi :::: g H Intact Y N ~ Cf)
SAMPLE IDENTlFICA T10N Collection Collection MATRIX ~ Signatura N
(Name, Location. Interval, etc.) Date Time Match
, ~JU\{_1 ~J'O 1-'-({) JsJS' ~-W 1)( X ~
2 /tJ~lAYJJpf .s,:.n i1-1r'IO !JX4D I~-VJ IX • JAJ.lllt._. ~
3 (~JhJ./1AIOtld .k_~ 1 1~1'J/) ItJt:tSO ~-1A1 ')( ~ g
nnn
4 fJ IA~"} ~A".~A~ 7 ·1-10 IJ1.3 ){-w .. ~ ~ l!
s~ ~,;:~ 7·1--1() ill'!> 'jJ' -tAl .~ ~ -= ~
6---rg.:lfj J< fu,.,. It I If ~
l·~II,i,~_~HLJj.( g ~CJC07aJl
8 , ~
9 ,
10 b;;lj
Custody R~hed by (pr~.J..w. Oa1elTime: 1,,110 "iZ", 111 Received by (print): OateJTrme: Signature:
........ !or 7-K-Jd Record Ro/lnquiSlpld by (prlhtJ: oatefl1lf111: ~Ignalu(o: '--Received by (prirt~ oolemma: Signalure:
MUST be
Signed If 7,Jr,r/Jjj{ U81eJI 7/JklJ 9. r IU :ilgh8lure:
Sample Disposal: Return to Cllent Lab Disposal:
In certain circumstances, sanples submitted to Energy Laboratories, Inc. may be subcontracted to other certified laboratories in order to complete the analysis requested.
This serves as notice of this possibility. All sub-contract data will be clearly notated on your analytical report.
VISit our web site at www.energylab.com for additional information, downloadable fee schedule, forms, and links.
A Jo Ann Tischler
Denison Mines
1050 17th Street, # 950
AMERICAN Denver, CO 80265
WEST TEL: [phone]
ANALYTICAL
LAB ORA TORIES
463 West 3600 South
Salt Lake City, UT
84115
[phone]
Toll Free [phone]
Fax [phone]
email: [e-mail]
Kyle F. Gross
Laboratory Director
RE: Seeps and Springs
Dear Jo Ann Tischler: Lab Set ID: 1011115
American West Analytical Laboratories received 6 sample(s) on 111512010 for the analyses
presented in the following report.
All analyses were performed in accordance to The NELAC Institute protocols unless
noted otherwise. American West Analytical Laboratories is certified by The NELAC
Institute in Utah and Texas; and is state certified in Colorado and Idaho. Certification
document is available upon request. If you have any questions or concerns regarding this
report please feel free to call.
The abbreviation "SUff" found in organic reports indicates a surrogate compound that is
intentionally added by the laboratory to determine sample injection, extraction, and/or
purging efficiency. The "Reporting Limit" found on the report is equivalent to the
practical quantitaion limit (PQL). This is the minimum concentration that can be reported
by the method referenced and the sample matrix. The reporting limit must not be confused
with any regulatory limit. Analytical results are reported to three significant figures for
quality control and calculation purposes.
Jose Rocha Thank You,
QA Officer Ky I e F. Digttally signed by Kyle F. Gross DN: cn=Kyle F. Gross, o=AWAL,
Qu=AWAL, emBil=kyle@awal-
G labs com, c=US ross Dele:2010.11.1010:06:11·07'OO'
Approved by:
Laboratory Director or designee
Report Date: 1119/2010 Page 1 of23
All analyses applicable to lhc CWA, SDWA, and RCRA are performed in accordance to NELAC proLocols. Pertinent sampling information is localed on Lbe aLLachcd COCo This report is provided for the exclusive use of the
addressee. Privileges of subsequent usc of the name of this company or any member of its staff. or reproduction of this report in connection with the advertisement, promotion or sale of any product or process, or in connection
with the re-publication of this report for any purpose otber than for the addressee will be granted only on contact. This company accepts no responsibility except for tbe due pcrfon1l8J1ce of inspection andlor analysis in good failh
and according to the rules of the trade and of science.
A SAMPLE SUMMARY
AMERICAN Client: Denison Mines Contact: Jo Ann Tischler
WEST Project: Seeps and Springs
Lab Set ID: 1011115 ANALYTICAL Date Received: 1115/2010l025h
LAB ORA TORIES
Lab Sample ID Client Sample ID Date Collected Matrix Analysis
1011115-001A Entrance Spring 11/3/201 0855h Aqueous VOAbyGC/MS
463 West 3600 South Method 8260C/5030C
Salt Lake City, UT 1011115-002A Ruin Spring 1113/201 0840h Aqueous VOAbyGC/MS
84115 Method 8260C/5030C
1011115-003A Westwater Seep 11/3/201 0810h Aqueous VOAby GC/MS
Method 8260C/5030C
1011115-004A Cottonwood Spring 1113/201 0740h Aqueous VOAbyGC/MS
[phone] Method 8260C/5030C
Toll Free [phone] 101l115-005A Orvin Spring 1113/201 0855h Aqueous VOAbyGC/MS
Fax [phone] Method 8260C/5030C
email: [e-mail] 1011115-006A Trip Blank 11/3/201 Aqueous VOAbyGC/MS
Method 8260C/5030C
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Report Date: 1 119/2010 Page 2 of 23
All analyses applicable La the CWA, SDWA, and ReRA are performed in accordance to NELAC prolocols. Pertinent sampling information is located on the auached COCo This report is provided [or the exclusive use oflhe
addressee. Privileges of subsequent use of the name of this company or any member of iLs slaff, or reproduction of this report in connecLion with Lhe advertisement, promoLion or sale of any producL or process, or in connection
with the re-publication of this report for any purpose other than for the addressee will be granted only on contacL. This company accepts no responsibility except for the due perfonnancc of inspection and/or analysis in good failh
and according to the rules of the trade and of science.
A
AMERICAN
WEST
ANALYTICAL
LAB ORA TORIES
463 West 3600 South
Salt Lake City, UT
84115
[phone]
Toll Free [phone]
Fax [phone]
email: [e-mail]
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Volatile Case Narrative
Client: Denison Mines
Contact: Jo Ann Tischler
Seeps and Springs
1011115
Project:
Lab SetID:
Sample Receipt Information:
Date of Receipt:
Date(s) of Collection:
Sample Condition:
C-O-C Discrepancies:
Method:
Analysis:
1115/2010
1113/2010
Intact
None
SW-8468260C/5030C
Tetrabydrofuran
General Set Comments: Tetrahydrofuran was not observed above reporting limits.
Holding Time and Preservation Requirements: All samples were received in appropriate
containers and properly preserved. The analysis and preparation of all samples were
performed within the method holding times following the methods stated on the analytical
reports.
Analytical QC Requirements: All instrument calibration and calibration check
requirements were met. All internal standard recoveries met method criterion.
Batch QC Requirements: MB, LCS, MS, MSD, RPD, and Surrogates:
Method Blanks (MBs): No target analytes were detected above reporting limits,
indicating that the procedure was free from contamination.
Laboratory Control Sample (LCSs): All LCS recoveries were within control
limits, indicating that the preparation and analysis were in control.
Matrix Spike I Matrix Spike Duplicate (MS/MSD): All percent recoveries and
RPDs (Relative Percent Differences) were inside established limits, indicating no
apparent matrix interferences.
Surrogates: All surrogate recoveries were within established limits.
Corrective Action: None required.
Report Date: 11/9/2010 Page 3 of23
All analyses applicable to the CW ~ SDWA, and RCRA are perfonned in accordance to NELAC protocols. Pertinent sampling information is locat~d on the attached COCo This report is provided for the exclusive use of the
addressee. Privileges or subsequent use orthe name of this company or any member of its starr, or reproduction of this report in connection with the advertisement, promotion or sale of Ilny product or process, orin connection
with the re-publication of this report for any purpose other than for the addressee will be granted only on contact This company accepts no responsibility except for the due performance of ins peeL ion andlor analysis in good faith
and 8.ccording to the rules of the trade and or science.
A ORGANIC ANALYTICAL REPORT
AMERICAN
WEST
ANALYTICAL
LAB ORA TORIES
463 West 3600 South
Salt Lake City, UT
84115
[phone]
Toll Free [phone]
Fax [phone]
email: [e-mail]
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Client:
Project:
Lab Sample ID:
Denison Mines
Seeps and Springs
1011U5-001A
Client Sample ID: Entrance Spring
Collection Date: 111312010 0855h
Received Date:
Method Used:
Analytical Results
Units: J.1g/L
Dilution Factor: 1
Compound
Tetrahydrofuran
11/5/2010 1025h
SW8260C
Surr: 1,2-Dichloroethane-d4
Surr: 4-Bromofluorobenzene
Surr: Dibromofluoromethane
Surr: Toluene-d8
Contact: Jo Ann Tischler
Analyzed: 1115/2010 1927h
VOAs by GCIMS Method 8260CI5030C
CAS Reporting Analytical
Number Limit Result Qual
109-99-9 1.00 < 1.00
17060-07-0 77-144 102
460-00-4 80-123 102
1868-53-7 80-124 99.6
2037-26-5 80-125 102
Report Date: 11/9/2010 Page 4 of23
All analyses applicable to the CWA, SDWA. and ReRA arc perrormed in accordance to NELAC protocols. Pertinent sampling information is located on the attached COCo This report is provided for the exclusive use of the
addressee. Privileges of subsequent use of the name of this company Or any member of its staff, or reproduction or this report in connection with the advertisement, promotion or sale of any product or process, or in cOMcction
with the re-publication of this report for any purpose other tban fat the addressee will be granted only on contact. This company accepts no responsibiJity except for the due perfonnance of inspection and/or analysis in good faith
and according to the rules of the trade and of science.
A
AMERICAN
WEST
ANALYTICAL
LAB ORA TORIES
463 West 3600 South
Salt Lake City, UT
84115
[phone]
Toll Free [phone]
Fax [phone]
email: [e-mail]
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
ORGANIC ANAL YTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Seeps and Springs
1011115-002A
Client Sample ID: Ruin Spring
Collection Date: 1113/2010 0840h
Received Date:
Method Used:
Analytical Results
Units: f1g1L
Dilution Factor: 1
Compound
Tetrahydrofuran
1115/2010 1025h
SW8260C
Surr: 1,2-Dichloroethane-d4
Surr: 4-Bromofluorobenzene
Surr: Dibromofluoromethane
Surr: Toluene-d8
Contact: Jo Ann Tischler
Analyzed: 1115/2010 1517h
VOAs by GCIMS Method 8260C/S030C
CAS Reporting Analytical
Number Limit Result Qual
109-99-9 1.00 < 1.00
17060-07-0 77-144 105
460-00-4 80-123 103
1868-53-7 80-124 103
2037-26-5 80-125 102
Report Date: 11/9/2010 Page 5 of23
All analyses applicable to the CWA. SDWA. and RCRA arc performed in accordaoce to NELAC protocols. Pertinent sampling information is located on the auached cae, This report is provided for the exclusive use of the
addressee. Privileges of subsequent use ofllie name of this company or any member of its staff, or reproduction of this report in connection with the advertisement, promotion or sale of any product or process, or in connection
with the re-publication of this report for any purpose other than for the addressee will be granted only on contact. This company accepts no responsibility except for the due performance of inspection and/or analysis in good failh
and according to the rules of the trade and of science.
A ORGANIC ANALYTICAL REPORT
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City, UT
84115
[phone]
Toll Free [phone]
Fax [phone]
email: [e-mail]
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Client:
Project:
Lab Sample ID:
Denison Mines
Seeps and Springs
1011115-003A
Client Sample ID: Westwater Seep
Collection Date: 11/312010 0810h
Received Date:
Method Used:
Analytical Results
Units: ~gIL
Dilution Factor: 1
Compound
Tetrahydrofuran
1115/2010 1025h
SW8260C
Surr: 1,2-Dichloroethane-d4
SUIT: 4-Bromofluorobenzene
Surr: Dibromofluoromethane
Surr: Toluene-d8
Contact: Jo Ann Tischler
Analyzed: 11/5/2010 1946h
VOAs by GC/MS Method 8260CI5030C
CAS Reporting Analytical
Number Limit Result Qual
109-99-9 1.00 < 1.00
17060-07-0 77-144 102
460-00-4 80-123 102
1868-53-7 80-124 100
2037-26-5 80-125 101
Report Date: 1119/2010 Page 6 of23
All analyses appJicable to the CWA, SDWA. and ReRA are perfonned in accordance La NELAC protocols. Pertinent sampling (nfannatioD is located on the aUached COCo This report is provided for the c;ltclusive use of the
addressee. Privileges of subsequent usc of the name of this company or any member of its starr, or reproduction of this report in connection wjth the advertisement, promotion or sale of any product or process, or in connection
with the re-publicalion of this report for any purpose other than for the addressee wjll be granted only on contact. This company accepls no responsibility cxcepL ror the due perfonnance of inspection and/or analysis in good faith
and according Lo the rules ofthe trade and or science.
A ORGANIC ANALYTICAL REPORT
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City, UT
84115
[phone]
Toll Free [phone]
Fax [phone]
email: [e-mail]
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Client:
Project:
Lab Sample ID:
Denison Mines
Seeps and Springs
1011115-004A
Client Sample ID: Cottonwood Spring
Collection Date: 1113/20100740h
Received Date:
Method Used:
Analytical Results
Units: ~glL
Dilution Factor: 1
Compound
Tetrahydrofuran
1115/2010 1025h
SW8260C
Surr: 1,2-Dichloroethane-d4
Surr: 4-Bromofluorobenzene
Surr: Dibromofluoromethane
Surr: Toluene-d8
Contact: Jo Ann Tischler
Analyzed: 1115/2010 2005h
VOAs by GCIMS Method 8260CIS030C
CAS Reporting Analytical
Number Limit Result Qual
109-99-9 1.00 < 1.00
17060-07-0 77-144 104
460-00-4 80-123 102
1868-53-7 80-124 102
2037-26-5 80-125 102
Report Date: 1119/2010 Page 7 of23
All analyses applicable La the CWA, SDWA, and RCRA arc performed in accordance to NELAC protocols. PertinenL sampling infonnation is localed on the BLlBched COCo This report is provided for the ex.clusive use of the
addressee. Privileges of subsequent use of the name oflhis company Or any member of its staff, orreproduclion of this report in connection with the advertisement, promotion or sale of any product or process, or in connection
with !he re-publication of this report. for any purpose other than rOT the addressee will be granted only on contacl. This company accepts no responsibility except for the due performance of inspection andlor analysis in good faith
and according to the rules of the trade and of science.
A ORGANIC ANALYTICAL REPORT
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City, UT
84115
[phone]
Toll Free [phone]
Fax [phone]
email: [e-mail]
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Client:
Project:
Lab Sample ill:
Denison Mines
Seeps and Springs
101 11 15-005A
Client Sample ID: Orvin Spring
Collection Date: 1113/2010 0855h
Received Date:
Method Used:
Analytical Results
Units: ~g!L
Dilution Factor: 1
Compound
Tetrahydrofuran
11/512010 1025h
SW8260C
Surr: 1,2-Dichloroethane-d4
Surr: 4-Bromofluorobenzene
Surr: Dibromofluoromethane
Surr: Toluene-d8
Contact: Jo Ann Tischler
Analyzed: 1115/2010 2024h
VOAs by GCIMS Method 8260CIS030C
CAS Reporting Analytical
Number Limit Result Qua]
109-99-9 1.00 < 1.00
17060-07-0 77-144 103
460-00-4 80-123 103
1868-53-7 80-124 101
2037-26-5 80-125 103
Report Date: 11/9/2010 Page 8 of23
All analyses applicable to the CWA, SDWA, and ReRA are pcrfomlcd in accordance to NELAC protocols. Pertinent sampling information is located on the attached COCo This report is provided for the exclusive usc oflhe
addressee. Privileges of subsequent use of the name of this company Or any member ofiLs staff, or reproduction of this report in connection with the advertisement, promotion or sale of any product or process, or in connection
wiLh the re-publication aflhis report for any purpose other than for Lhe addressee will be granted only on contact. This company accepts no responsjbility except for the due perfonnance of inspection andlor analysis in good faith
and according La the rules ofthe trade and of science.
A ORGANIC ANALYTICAL REPORT
AMERICAN
WEST
ANALYTICAL
LAB ORA TORIES
463 West 3600 South
Salt Lake City, UT
84115
[phone]
Toll Free [phone]
Fax [phone]
email: [e-mail]
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Client:
Project:
Lab Sample ID:
Denison Mines
Seeps and Springs
1011115-006A
Client Sample ID: Trip Blank
Collection Date: 1113/2010
Received Date:
Method Used:
Analytical Results
Units: flg/L
Dilution Factor: 1
Compound
Tetrahydrofuran
11/5/2010 1025h
SW8260C
Surr: 1,2-Dichloroethane-d4
Surr: 4-Bromofluorobenzene
Surr: Dibromofluoromethane
Surr: Toluene-d8
Contact: Jo Ann Tischler
Analyzed: 11/5/20102043h
VOAs by GCIMS Method 8260C/5030C
CAS Reporting Analytical
Number Limit Result Qual
109-99-9 1.00 < 1.00
17060-07-0 77-144 105
460-00-4 80-123 104
1868-53-7 80-124 102
2037-26-5 80-125 102
Report Date: 11/9/2010 Page 9 of23
All analyses applicable La the CWA, SDWA, and ReM are pcrfonned in accordance La NELAC protocols. Pertinent sampling jnfonnation is located on the attached COCo This report is provided for the exclusive use of the
addressee. Privileges or subsequent use of the name of this company or Bny member of its staff, or reproduction of this rcport in connection with the advertisement, promotion or sale of any product or process, or in connection
with the re.publicalion ofthts report for any purpose other than for the addressee will be granted only on contact. This company accepts no responsibility except for the due performance of in spec lion and/or analysis in good faith
and according to the rules of the trade and of science.
A
Client: Denison Mines
Lab Set ID: 1011115
Project: Seeps and Springs
Sample ID Analyte
LCS VOC 110510A Tetrahydrofuran
LCS VOC 11 0510A Surr: 1,2-Dichloroethane-d4
LCS VOC 110510A Surr: 4-Bromofluorobenzene
LCS VOC 11 0510A Surr: Dibromofluoromethane
LCS VOC 110510A Surr: Toluene-dS
AMERICAN WEST ANALYTICAL LAB ORA TORIES
463 West 3600 South
Units
!!g/L
%REC
%REC
%REC
%REC
Salt Lake City, UT 84115
[phone]. Toll Free [phone]. Fax [phone]
e~majl: [e-mail]. web: www.awal-labs.com
QC SUMMARY REPORT
Dept: MSVOA
QC Type: LCS
Amount Original
Method Result Spiked Amount %REC
SWS260C 20.6 20.00 0 103
SWS260C 50.9 50_00 102
SWS260C 47.3 50.00 94.5
SWS260C 50.7 50.00 101
SWS260C 49.S 50_00 99.5
Limits
43-146
69-132
S5-11S
SO-120
SI-120
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
%RPD RPD Limit Qualifiers
Analysis
Date
1115/2010
1115/2010
11/5/2010
1115/2010
1115/2010
Report Date: 1119/2010 Page 10 of23
AU analyses applicable Lo the CW A. SOW A, and RCRA arc pcrfonncd in accordance to NELAC protocols. Pertinent sampling information is located on the attached COCo This report is provided (or the exclusive we of the addressee. Privileges of subsequCDt usc of the name of this company or any member of its starr. or reproduction
arthis report in connection with the advcrtiscmcn~ promotion or sale of any prodUCl or process. or in connection with the fe-publication of this report for any purposc other than fOT the addces§cc win be granted only on contact.. This company accepts no responsibility cxcept fOT the due performance ofinspcctian and/or analysis in good
faith and according to tbc: rules of the trade and of science,
A
Client: Denison Mines
Lab Set ID: 1011115
Project: Seeps and Springs
SampleID Analyte
MB VOC 110510A Tetrahydrofuran
MB VOC 110510A SUIT: 1,2-Dichloroethane-d4
MB VOC 110510A SUIT: 4-Bromofluorobenzene
MB VOC 110510A SUIT: Dibromofluoromethane
MB VOC 110510A SUIT: Toluene-d8
AMERICAN WEST ANALYTICAL LABORATORIES
463 West 3600 South
Units
Ilg/L
%REC
%REC
%REC
%REC
Salt Lake City, UT 84115
[phone]. Toll Free [phone]. Fax [phone]
e·mail: [e-mail], web: www.awal·1abs.com
QC SUMMARY REPORT
Dept: MSVOA
QC Type: MBLK
Amount Original
Method Result Spiked Amount %REC
SW8260C < 1.00
SW8260C 52_2 50.00 104
SW8260C 51.2 50.00 102
SW8260C 51.2 50.00 102
SW8260C 51.0 50.00 102
Limits
69-132
85-118
80-120
81-120
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Analysis
% RPD RPD Limit Qualifiers Date
11/5/2010
11/5/2010
11/5/2010
1115/2010
1115/2010
Report Date: 1119/2010 Page 11 of23
All analyses applicable to the CW A, SDW A, and ReRA are performed in accordance to NELAC protocols. Pertinent sampling information is located on the attached COCo This report is provided for the exclusive usc of the addressee. Privileges of subsequent usc of the name of this company or any member of its staff, or reproduction
of this report in connection with the advertisement. promotion or sale of any producl or process, or in connection with the re-publication of this report for my purpose other than for the addressee will be granted only on contacl This company accepts no responsibility except for thc due performance of inspection and/or analysis in good
faith and according to the rules of the trade and ofscicncc.
A
Client: Denison Mines
Lab Set ID: 1011115
Project: Seeps and Springs
Sample ID Analyte
101 1115-002AMS Tetrahydrofuran
1011115-002AMS SUIT: 1,2-Dichloroethane-d4
1011115-002AMS SUIT: 4-Bromotluorobenzene
1011115-002AMS SUIT: Dibromotluoromethane
1011115-002AMS SUIT: Toluene-d8
AMERICAN WEST ANALYTICAL LABORATORIES
463 West 3600 South
Units
1Lg/L
%REC
%REC
%REC
%REC
Salt Lake City, UT 84115
[phone], Toll Free [phone], Fax [phone]
e-mail: awal@awal·labs_corn,web: www.awal-Iabs.com
C SUMMARY REPORT
Dept: MSVOA
QC Type: MS
Amount Original
Method Result Spiked Amount %REC
SW8260C 18.8 20.00 0 93.8
SW8260C 49.3 50.00 98.6
SW8260C 47.8 50.00 95.6
SW8260C 51.6 50.00 103
SW8260C 48.9 50.00 97.8
Limits
43-146
77-144
80-123
80-124
80-125
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
%RPD RPD Limit Qualifiers
Analysis
Date
11/5/2010
1115/2010
11/5/2010
1115/2010
1115/2010
Report Date: 111912010 Page 12 of23
AU analyses applicable to the CWA, SDWA, and ReRA arc performed in accordance to NELAe protDcols. Pcrtin~t sampling information is located 00 the attached COC, This report is provided for the exclusive usc ofthc: addressee. Privileges ofsubsc:qucnt usc oftbc name of this company or any member of its slaCf. or reproduction
of this report in connection with the advc:rtisement, promotion or sale oraoy product OT process, or in conncction with the re~publication of this report for any purposc other than for the addressee will bc gnlolcd only on contact This company accepts no responsibility excepl for the due pcrformance of inspection andlor analysis in good
faith and according to the rules of the track and of science
A
Client: Denison Mines
Lab Set ID: 1011115
Project: Seeps and Springs
Sample ID Analyte
101 I 115-002AMSD Tetrahydrofuran
1011115-002AMSD Surr: 1,2-Dichloroethane-d4
1011115-002AMSD Surr: 4-Bromofluorobenzene
1011115-002AMSD Surr: Dibromofluoromethane
1011 I 15-002AMSD Surr: Toluene-d8
AMERICAN WEST ANALYTICAL LAB ORA TORIES
463 West 3600 South
Units
)l.gIL
%REC
%REC
%REC
%REC
Salt Lake City, UT 84115
[phone], Toll Free [phone], Fax [phone]
e-mail: [e-mail], web: www.awal-labs.com
QC SUMMARY REPORT
Dept: MSVOA
QCType: MSD
Amount Original
Method Result Spiked Amount %REC
SW8260C 18.6 20.00 0 93.2
SW8260C 49.5 50.00 99.0
SW8260C 48.2 50.00 96.4
SW8260C 51.9 50.00 104
SW8260C 49.1 50.00 98.1
Limits
43-146
77-144
80-123
80-124
80-125
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
%RPD RPD Limit Qualifiers
0.695 25
Analysis
Date
1115/2010
1115/2010
11/5/2010
1115/2010
11/5/2010
Report Date: 11/912010 Page 13 of23
All analyses applicable to the CWA, SDWA, and RCRA arc performed in accordance to NELAC protocols. Pertinent sampling information is located on the attached COCo This report is provided for the exclusive:: usc oftbc addressee. Privileges ofsubscqucnt usc or the name afthis company or any mcm:Jbcr of its staff, or reproduction
oflhis report in connection with the advertisement, promolion or sale CraDY product or process, or in COTlneetion with the re-publication orthis report for any purpose other than for the addressee will be granted only on contact This company accepts no responsibility except for thc due performance ofinspcction andlor analysis in good
faith and according to the rules of the trade and of science.
Data Path
Data File
Aeq On
Operator
Sample
Mise
ALS Vial
Quant Time:
Quant Method
Quant Title
QLast Update
Response via
Quantitation Report
C:\msdehem\1\DATA\NOV10-C\05NOV10A\
X10L1l5l.D
5 Nov 2010 7:27 pm
101l1l5-001A
SAMP 5.0ML 10F2
25 Sample Multiplier: 1
Nov 08 12:10:31 2010
C:\MSDCHEM\1\METHODS\AFULLW_22.M
VOA Calibration
Fri Nov 05 14:33:09 2010
Initial Calibration
(QT Reviewed)
~u ndance ---fic: X10L1151])\data.ms --
19 00000
18 00000
17 00000 ~ i!! ~
00000 " .0 ~ 16
~ i! ()
0 00000 ~ ~
15
~
.; ~ 00000 c " " ~ .0 .8 ~
~ CIl. i! 0 ." 00000 .i! " 0 LL c " ". 0 N ~ c .8 ~ ~
00000 0 " 'E
14
13
12
E ~ In
00000 " " (/) 11
10 00000
9 00000
8 00000
CIl.
00000 Q)
[ij '4. 7
~ Q) c .. E .t= e 1D
00000 0 ~ .i! ~ '0 E ~ i5
,Q "'. 00000 0
!3 ~ (/) (/)
6
5
4 00000
3 00000
2 00000
00000
~ 0
m 8-> 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.~8.00 8.50
AFULLW_22.M Mon Nov 08 12:13:25 2010
9.00 9.50 10.00 10;50 11.00 11.50
Report Date: 1119/2ijlU:JEP"e.g~14 of23
Quantitation Report (QT Reviewed)
Data Path
Data .File
Acq On
Operator
Sample
M.isc
ALS Vial
C:\msdchem\1\DATA\NOV10-C\05NOV10A\
W97L1152.D
5 Nov 2010 3:17 pm
1011115-002A
SAMP 5.0ML 10F3
13 Sample Multiplier: 1
Quant Time: Nov 05 18:49:37 2010
Quant Method C:\msdchem\1\METHODS\AFULLW_22.M
Quant Title VOA Calibration
QLast Update Fri Nov 05 14:33:09 2010
Response via Initial Calibration
r. bundanc e TIC: W97l1152.0\data.ms
160000 0
1500000
1400000
1300000
1200000
1100000
1000000
900000
800000
700000
600000
500000
400000
300000
200000
100000
r----.. o
tme::_>_
:2 .B .. l j
2.60 1:59 3-,90
"I. i (I) ! ~ i ! e '0 f! E ..,
oS a
a «i.
to ~ <il
3.§.O 4!Op 4.®_5,QQ
AFULLW_22.M Fri Nov 05 18:50:24 2010
f ~ ~
I ' ~ I.)
i ~
" -g
g
IT:
~
<f) 2-
j
j
0 E e '" to cil
.§
~ "
. L ! L 5:50_6~90_M~L 7.50
~ ~
I C(
~ ..,
~
8.00 8.50 9.00 9.50 10.00 10.50 .1. 11.00 11 .50
Report Date: 111912ij'ftB"El'tlge415 of23
Data Path
Data File
Acq On
Operator
Sample
Mise
ALS Vial
Quantitation Report
C:\msdehem\1\DATA\NOVIO-C\05NOVIOA\
XllL1l53. D
5 Nov 2010 7 :46 pm
10111lS-003A
SAMP 5 .0ML 10F3
26 Sample Multiplier : 1
Quant Time : Nov 08 12 :11 :16 2010
Quant Method C:\MSDCHEM\1\METHODS\AFOLLW_22.M
Quant Title VOA Calibration
QLast Update Fri Nov 05 14 :33:09 2010
Response via Initial Calibration
--
(QT Revie\ ... ed)
---~undanc e TIC: Xii L1153.0\dalams
1800000
1700000
""' It> l 1600000
" l! !! .8 e ~ 1500000
<.>
1400000 ~ ~ :! ~ ~
! ~ ~ a ~ is .0:
i !:! e ~ !!l ::0 15 lL oil a ~ g e
1300000
1200000
1100000
II)
13 til
1000000
900000
800000
i til
~ ~
i ~
i ~ ~
Cl "t
700000
600000
500000
I: ~ ~ c7l
400000
300000
200000
100000
2.00 2.hQ 3.00 ~ ).!. ~~5.Q 6.bo 6.50 7.00 7.§.9_8.00 8.§O _9.0Q_9.@ 10,90 10.§0 ~,po 11 ~50 3·@~·~Q~d()_§&D o
I!!)e->
AFULLW_22 .M Mon Nov 08 12 :14:00 2010 Report Date: 11/9f2ijmJ~gtl16 of23
Quantitation Report (QT Reviewed)
Data Path
Data File
Aeq On
Operator
Sampl e
Mise
ALS Vi al
C :\msdehem\1\DATA\NOVlO-C\05NOVlOA\
X12L1154 .D
5 Nov 2010 8 :05 pm
101l1l5-004A
SAMP 5 . OML lOF3
27 Sample Multiplier : 1
Quant Time : Nov 08 12 :11 :55 2010
Quan.t Method C:\MSDCHEM\1\METHODS\AFULLW_22 .M
Quant Title VOl\. Calibration
QLast Update Fri Nov 05 14 :33:09 2010
Response via I nitial Calibration
ance bund
1800
TIC: X12L1154.0\data.ms
000
1700 000
1600 000 -. l(!
! 000 .. ~ 1500
~ ~
000 0
~ 1400
1300 000 ~ .8 e ~ .... V> 000 ~ 2 ~
1200
.21 e 000 S 1 1100
CD
000 1= " V> 1000
9000 00
800 000
700 000 CIl. " " CIl. 2 !
00 ~ II ! ~ ~ J :ti 0
000 0 ~
6000
500
cil ~ en
4000 00
3000 00
2000 00
1000 00
0 "----
2.00 2.50 ~ b .~ 7.50 3!-QQ~-,-5Q~Q9~~00 5.50 ._ 6.0L.§.5.LJ.0.9 me->
AFULLW_22.M Mon Nov 08 12:14:33 2010
-
f .,
!! j
~ .;. .: 0 t2
8.00 8.50
------.-
WO ,I, 9.50 10.00._1Qo~0 11:OQ 11 ~50'
Report Date: 11I9/2ijroJ€Alg~17 of23
Data Path
Data file
Aeq On
Operator
Sample
Mise
ALS Vial
Quant Time:
Quant Method
Quant Title
OLa st Update
Response via , undance
1700000
1600000
1500000
1400000
1300000
1200000
1100000
1000000
900000
eooooo
700000
eooooo
500000
400000
300000
200000
100000
Quant itation Report
C:\msdehem\l\DATA\NOVIO-C\OSNOVlOA\
x13L1l55.D
5 Nov 2010 8:24 pm
101111S-00SA
SAMP S.OML 10fl
28 Sample Multiplier : 1
Nov 08 12 :12 :37 2010
C:\MSDCHEM\1\METHODS\AFULLW_22 .M
VOA Calibration
fri Nov 05 14 :33:09 2010
Initia l Calibration
(OT Revi ewed)
TIC: X13Ll l 55.O\cIate.ms
I i ,
AFULLW_22 .M Man Nov 08 12 :15:06 2010
Data Path
Da ta File
Acg On
Operator
Sample
Mise
ALS Vial
Quantitation Report
C :\msdchem\1\DATA\NOVlO-C\05NOVlOA\
X14LllS6.D
5 Nov 2010 8 :43 pm
101l.115-006A
SAMP 5.0ML lOF3
29 Sample Multiplier : 1
Quant Time : Nov 08 12 :13:06 2010
Quant Met hod C:\MSDCHEM\1\METH0DS\AFULLW_22 .M
Quant Title VOA Calibration
QLast Update Fri Nov 05 14 :33 :09 2010
Response via I nitial Calibration
(QT Reviewed)
I bundance TIC: X14L 1156.D\data.ms
1700000
1600000
1500000 ;;:r
~ :!!
1400000 ~ .8 .s .c 0
1300000 ,; ~ ~
1200000 I 1 !I IT: ~ c Ii! ~
1100000 '" 0
~ ~ e :: ~ e 1000000 ~ !a
g
OJ t: 900000 " '"
800000
700000
(J)
600000
500000
I!! "l. 2 g ! g
§ ~ .. E <I E .JiI <I ~ .!:! c ~ !5
(J) fh
400000
300000
200000
100000
me->
o i'----..
I I I I I I I I I ~.OO 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 !i. 50 7.00 7.50 ~,.QO ~§Q_9.0L.J1"§Q---.1Q.OO 19.50 11.00 11 .50 I
AFULLW_22 .M Mon Nov 08 12 :15:39 2010 Report Date: 111912ij'ID1~19 of23
Data Path
Data File
Aeq On
Operator
Sample
Mise
ALS Vial
Quantitation Report
C:\msdehem\1\DATA\NOV10-C\05NOV10A\
W94LCS20.D
5 Nov 2010 2:20 pm
LCS VOC 1l0510A
LCS SEE COVERSHEET FOR ID AND AMOUNTS
10 Sample Multiplier: 1
Quant Time: Nov 05 14:54:04 2010
Quant Method C:\msdehem\1\METHODS\AFULLW_22.M
Quant Title VOA Calibration
QLast Update Fri Nov 05 14:33:09 2010
Response via Initial Calibration
(Not Reviewed)
TIC: W94LCS20.D\data.ms
2200000
2000000
1400000
1200000
1000000
800000
600000 ~
~~ j ~
400000 ~ ~
~:§;' t;j u>
200000
AFULLW_22.M Fri Nov 05 14:54:07 2010
I
10.00 10.50 11.00 11.50
Report Date: 1119/2tJlID%g#20 of23
Data Path
Data File
Aeq On
Operator
Sample
Mise
ALS Vial
Qua nti tati on Repor t
C:\msdehem\l\DATA\NOV10-C\05NOV10A\
W96LMBLK .D
5 Nov 2010 2:58 pm
MB VOC 110510A
MBLK 5 .0ML
12 Sample Multiplier: 1
Quant Time: Nov 05 15 :12:24 2010
Quant Method C:\msdehem\1\METRODS\AFULLW_22 .M
Quant Title VOA Calibration
QLast Update Fri Nov 05 14 :33:09 2010
Response via Initial Calibration
(QT Revi ewed)
r bundance -TIC: W96LM"BLK.O\data.ms
1700000
1600000
1500000
1400000
1300000
1200000
1100000
1000000
900000
BOOOOO
700000
j '" 600000 ~ ~ !! ~ j g ~ .Il 500000 !! 0 .., <'I 0
~ ~ '" 400000
300000
200000
100000
AFULLW_22.M Fri Nov 05 15 :12:39 2010 Report Date: 1119I2ijW1~8~1 of23
Data Path
Data File
Aeq On
Operator
Sample
Mise
ALS Vial
Quantitation Report
C:\msdehem\1\DATA\NOV10-C\05NOV10A\
W98S1l52.D
5 Nov 2010 3:36 pm
101l1l5-002AMS
MS 5.0ML 10F3
14 Sample Multiplier: 1
Quant Time: Nov 05 15:47:59 2010
Quant Method C:\MSDCHEM\1\METHODS\AFULLW_22.M
Quant Title VOA Calibration
QLast Update Tue Nov 02 09:11:24 2010
Response via Initial Calibration
(Not Reviewed)
TIC: W9,BS1152.Dldata.ms
E
[nme->
AFULLW_22.M Fri Nov 05 18:51:01 2010 Report Date: JI/9/2lJroJ%ge'122 of23
Data Path
Data File
Aeq On
Operator
Sample
Mise
ALS Vial
Quant Time:
Quant Method
Quant Title
QLast Update
Response via
Quantitation Report
C:\msdehem\1\DATA\NOV10-C\05NOV10A\
W99D1152.D
5 Nov 2010 3:55 pm
1011115-002AMSD
MSD 5.0ML 10F3
15 Sample Multiplier: 1
Nov 05 16:06:55 2010
C:\MSDCHEM\1\METHODS\AFULLW_22.M
VOA Calibration
Tue Nov 02 09:11:24 2010
Initial Calibration
(Not Reviewed)
TIC: W9901152.0ldala.ms
on
2700000 "0 " co Q) ~ 2600000 Jl e .Q
2500000 6
... 2400000 1 " ~ 2300000 " -" e
2200000 ~ .11 0 "'-2100000 0
<It ~
2000000 !8
!! i
E
d
~ , a; Q) ~
Q g e g .<: .Q
E :
j .t= Q) .g ~ I~ I-
.JI .1j ~ 0 ~ ~ ~~ 15 Q) Q) >. E E .t= ..,0 0 w 0] E II e m
100000
AFULLW_22.M Fri Nov 05 18:51:48 2010 Report Date: 1119/2ijJUJ%gtf.i23 of23
American West Analytical Laboratories RUSH
WORK ORDER Summary
Client: Denison Mines
Client ID: DEN 100 Contact: Jo Ann Tischler
Project: Seeps and Springs QC Level: LEVEL III
Comments: 3 Day Rush -No Hard Copies (UL). QC 3 & Summary. EDD-CSV. Report TIIF to.1 LuglL.;
SampleID Client Sample ID Collected Date Received Date Date Due Matrix
101111S-001A Entrance Spring 1113120108:55:00 AM 11/5/2010 10:25:00 AM 1111012010 Aqueous
101111S-002A Ruin Spring 1113120108:40:00 AM 11/1012010
101111S-003A Westwater Seep 1113120108:10;00 AM 11/1012010
101111S·004A Cottonwood Spring 11/3120107:40;00 AM 11110/2010
lOll l1S-005A On'in Spring 1113/2010 8:55:00 AM 11/10/2010
101l1IS-006A Trip Blank 1113/2010 11110/2010
"
Work Order: . 1011115
Page 1 of 1
11/5/2010
WOType: Project
Test Code Sel Storage
8260-W 0 VOCFridge
8260-W 0 VOCFridge
8260-W ~ VOCFridge
8260-W ~ VOCFridge
8260-W ~ VOCFridge
8260-W 0 VOCFridge
3
-' _ .. ~ -_ .. _---------------.---. -------------
Sheet 1 of 1
CHAIN OF CUSTODY /e 1/115
Samples Shipped to: American West Analytical Lab
463 West 3600 South
Salt Lake City, Ut 84115
Contact: Ryan Palmer or David Turk
Ph: 435 678 2221
[e-mail]
[e-mail]
Chain of Custody/Sampling Analysis Request
Project Sam lers Name
Seeps and S rin s Tanner Holliday
Date Time
Sample 10 Collected Collected Laboratory_ Analysis Requested
Entrance Spring 11/3/2010 855 THF ,
Ruin Spring 11/3/2010 840 THF
Westwater Seep 11/3/2010 810 THF
Cottonwood Spring 11/3/2010 740 THF
Orvin Spring 11/3/2010 855 THF
Trip Blank 11./3/2010 THF
,
PLEASE EXPEDITE ANALYSIS 3 DAY TURN AROUND. Please nofify Ryan Palmer of Reeiept
tempature on these samples Immediately! Thank you.
L.-'
Relinquished By:(Signature) Date/Time 7S'9nature) DatefTlme
:~~)I4h 11/4/2010
1130
Relinquished By:(Signature) 7 ~}:::(Z :t!l.lme
"£
11'f-(6
Idl J
/' / '( ~
.---_._-----------
Lab Set ID: 10 {/ 1/5
---. -_. . --Samples Were: COC Tape Was: Container Tvpe: No. Rec.
'f{. Shipped By: \..\fS Present on Outer Package o A W AL Supplied Plastic
o Hand Delivered 1Ij1Yes DNa ON/A fi( A WAL Supplied Clear Glass /S o Ambient Unbroken on Outer. package Jl A WAL SuppJied Amber Glass
'¥1 Chilled riYes ONe ON/A. o AWAL Supplied VOftjTOC/TOX Vials
Temperature J. tf DC Present on Sample o Amber 0 Clear 0 Headspace 0 No Headspace
Rec. BrokenlLeaking DYes o(No 'ON/A . DYes ONo UN/A o Non AWAL Supplied Container
Notes: . Unbroken on sa;Ple Notes:
DYes DNo N/A
Properly Preserved ~Yes ONo ON/A Notes: I .
Notes:
Rec. Within Hold ~Yes oNo Discrepancies Between Labels and COC .
Notes:
Bottle Type
-A ia
COD "
Cyanide
Metals
N02 &N03
Nutrients
O&G
Phenols
Sulfide
TKN
TOe
TP04
TPH
Procedure.
I Notes:
. .
' Preserya:tive . All pHs OK . ,
.. 1)
2)
3)
4)
5)
·6)
7)
j:lH<2H2S04
pH <L 02
PH>12NaOH ~
pH<2HN03 .' --1'--.' -
_ pH <2 H2SO4 r--
pH <2 H2S04
--':-~ .'
pH<2HCL -.........
pH <2 H2S04 ' , ~
pH > 9NaOH, ZllAC '-...
pH <2 H2SO4
pH <2H"P04 ..
pH <2 H2SO4
pH <2 HCL ' ,
.
Pour a small amount of sample in the sample lid
Pour sample from Lid gently over wide range pH paper
Do Not dip the pH paper in the sample bottle or lid , •
If sample is not presewed.properly list its extension and fEic~iving pH in the appropriate column above
Flag cac and notify client for further instructions
Place client conversation on COC
Samples may be adjusted at client request
'. ----
" :
,
.. --
..
' .
r--.... ~
.............
'---.. ,
-.......... '
..
'.
DYes
.
. ,
"-.. ":::::::
oo'No ,
-
Elorta Haywardl
From:
Sent:
To: ,
Subject:
ElonC!,
. ,
Kathy Weinel [KWeinel@denisonmines,com]
Friday, November 05, 2010 7:41 AM
Elona Hayward
RE: pricing
As promised, I just wanted to let you know that 5 samples were ship'ped yesterday for THF for 3 day TAT. Two of the
samples are reduced volume due to sampling issues.
Please feel free to call me if you have any questions or problems.
Thanks for all of your help
Kath-y
Kathy Weinel
Quality Assurance Manager
t: [phone] I f: [phone]
1050 17th Street. Suite 950, Denver. CO 80265
DENISON MINES (USA) CORP
www.denisonmines.com
This e-mail Is Intended for the exclusive use of the person(s) mentioned as the recipient(s). This message and any attached files with it are confidential and may contain
privileged or proprietary Information, If you are not the intended recipient(s) please delete this message and notify the sender. You may not use, distribute print or copy this
message if you are not the Intended recipient(s).
From: Elona Hayward [mailto:[e-mail]]
Sent:: Tuesday, November 02, 2010 2:57 PM
To: Kathy Weinel
Cc: Lynn Turner; Rebekah Winkler
Subject: pricing
Hi Kathy,
Melanie forwarded your email to me.
The price for the THF's is $90.00 per sample for our standard 10 dayTAT. If you need ~ rush, next day would be 100%
additional. Two day 50%, 3 day 30%, and 5 day 20%.
Also,:ifyou require a special QC package, which in the past you have been doing QC3, that would be another 30%.
Hope' this is the information you were looking for.
Than~s,
Elona Hayward
Project Manager
American West Analytical L,boratorles
463 W, 3600 S.
Salt Lake
Notice ,of confidentiality. This transmission is attorney client privileged and intended exclusively for the stated addressee. If received accidentally, please notify the
sender immediately, Reproduction, distribution, and dissemination of this information are strictly prohibited by anyone other than the intended.
1
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TabE
Quality Assurance and Data Validation Tables
Table E-l Holding Time Evaluation
Entrance Westwater Cottonwood Ruin Spring Back Orvin Spring Required Holding Time Seep Seep Seep Spring
Major Ions
Carbonate 14 days OK OK OK OK OK OK
Bicarbonate 14 days OK OK OK OK OK OK
Calcium 6 months OK OK OK OK OK OK
Chloride 28 days OK OK OK OK OK OK
Fluoride 28 days OK OK OK OK OK OK
Magnesium 6 months OK OK OK OK OK OK
Nitrogen-Ammonia 28 days OK OK OK OK OK OK
Nitrogen-Nitrate 28 days OK OK OK OK OK OK
Potassium 6 months OK OK OK OK OK OK
Sodium 6 months OK OK OK OK OK OK
Sulfate 28 days OK OK OK OK OK OK
pH (s.u.) N/A OK OK OK OK OK OK
TDS 7 days OK OK OK OK OK OK
6 months (except
mercury which is 28
Metals days) OK OK OK OK OK OK
Radiologics 6 months OK OK OK OK OK OK
VOCS (including THF) 14 days OK OK OK OK OK OK
E-2 Laboratory Receipt Temperature Check
Work Order NumberfLab
Set ID Receipt Temp
EL -CI00703 14 l&lQ
. A WAL ':1111;111 t'J; 3.4°C
E-3: Analytical Method Check -Routine Samples
Parameter QAP/Permit Method Method Used by Lab
Ammonia (as N) A4500-NH3 G A4500-NH3 G
Nitrate + Nitrite (as N) E353.2 E353.2
Metals except Iron E200.8 E200.8
Iron E200.7 E200.7
Gross Alpha E900.l E900.1
VOCs except Tetrahydrofuran SW8260B SW8260B
Tetrahydrofuran SW8260C SW8260C
Chloride A4500-Cl B A4500-Cl B
Fluoride A4500-F C A4500-F C
Sulfate A4500-S04 E A4500-S04 E
TDS A2540 C A2540 C
Carbonate as C03, Bicarbonate as HC03 A2320 B A2320 B
Calcium, Magnesium, Potassium, Sodium E200.7 E200.7
E-4 Reporting Limit Evaluation
Parameter
Ammonia (as N)
Nitrate + Nitrite (as N)
Metals ug/L
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Iron
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Tin
Uranium
Vanadium
Zinc
Gross Alpha
VOCs ug/L
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
MEK
Methylene Chloride
Naphthalene
Tetrahydrofuran
Toluene
Xylenes
Major Ions mg/L
Chloride
Fluoride
Sulfate
TDS
Carbonate as C03, Bicarbonate as HC03
Calcium, Magnesium, Potassium, Sodium
All analyses were reported to the required
RLs unless noted in the text.
Permit-Specified RL
25 mg/L
10 mg/L
50
4
5
100
730
1300
11000
15
800
2
40
100
50
100
2
17000
30
60
5000
15
700
5
5
70
30
4000
5
100
46
1000
10000
1
4
1
10
Not Specified
Not Specified
Bla'nk Sample Date Laboratory
i 11/3/2010 AWAL
! 7/8/2010 ,~,
E-6 Duplicate Sample Relative Percent Difference
Ruin Spfing Back Spring Entrance Spring Orvin Spring RPD%
(Duplicate of Ruin (Duplicate of
Spring) All Entrance)
Analytes except Tm'only
TRF
Major Ions (mg/l)
Carbonate <I <I N/A N/A N/C
Bicarbonate 254 254 N/A N/A 0
Calcium 136 137 N/A N/A 0.7
Chloride 23 23 N/A N/A 0.0
Fluoride 0.53 0.51 N/A N/A 3.8
Magnesium 29.7 30.4 N/A N/A 2.3
Nitrogen-Ammonia <0.05 <0.05 N/A N/A N/C
N itrogen-Nitrate 1.7 1.7 N/A N/A 0
Potassium 3.07 3.08 N/A N/A 0.3
Sodium 93.4 97.4 N/A N/A 4.2
Sulfate 447 444 N/A N/A 0.7
pH (s.u.) 7.51 7.55 N/A N/A 0.5
TDS 903 950 N/A N/A 5.1
Metals (ugll)
Arsenic <5.0 <5.0 N/A N/A N/C
Beryllium <0.05 <0.05 N/A N/A N/C
Cadmium <0.05 <0.05 N/A N/A N/C
Chromium <25 <25 N/A N/A N/C
Cobalt <10 <10 N/A N/A N/C
Copper <10 <10 N/A N/A N/C
Iron <30 36 N/A N/A N/C
Lead <1.0 <1.0 N/A N/A N/C
Manganese <10 <10 N/A N/A N/C
Mercury <0.05 <0.05 N/A N/A N/C
Molybdenum 17 17 N/A N/A 0
Nickel <20 <20 N/A N/A N/C
Selenium 10 9.5 N/A N/A 5.1
Silver <10 <10 N/A N/A N/C
Thallium <0.5 <0.5 N/A N/A N/C
Tin <100 <100 N/A N/A N/C
Uranium 8.47 8.52 N/A N/A 0.6
Vanadium <15 <15 N/A N/A N/C
Zinc <10 <10 N/A N/A N/C
Radiologics (pC ill)
Gross Alpha <0.2 <0.3 N/A N/A N/C
VOCS (ug/L)
Acetone <20 <20 N/A N/A N/C
Benzene <I <1 N/A N/A N/C
Carbon tetrachloride <I <I N/A N/A N/C
Chloroform <1 <J N/A N/A N/C
E-6 Duplicate Sample Relative Percent Difference , Ruin SpJling Back'Spring Entrance Spring Orvin Spring RPD%
(DiI~licate of R.uin (Duplicate of
Spring) All Entrance)
.~n~lytes except TEW only
THF
Major lOlls (mgtl)
Chloromethane <I <I NtA NtA N/C
MEK <20 <20 N/A N/A N/C
Methylene Chloride <I <1 NIA N/A N/C
Naphthalene <I <I N/A NIA N/C
TClrahydrofuran N/A N/A
Toluene <I <I N/A NtA N/C
Xylenes <1 <I N/A N/A N/C
1'-"1 Radiologies Counting ErNt
Gross Alpha Counting
Gross Alpha minus Rn & U Error ~ Within
Sample ID minus Rn & U Precision (±) 20% GWQS GWQS
Entrance Seep ~ a.'zl l'!JlA is. NA
Westwater Seep <0.3 O~ N~ 1:1 NA
Cottonwood Seep <O~I 0.4, ~ , U~ N~
Ruin Spring, <0.2 Il.a NA :11 ~
Back Spring <0.3 "~:I lfil~ U , N~
Orvin Spring N/A N/A • l$; N~
E-8: Laboratory Matrix QC
Matrix Spike % Recovery Comparison
All MSIMSD recoveries and RPDs were acceptable.
Surrogate % Recovery
Lab QAP
Surrogate Specified Required
Lab Report Well/Sample Analyte %REC RECRange Range
ClO070314 Entrance Spring p-Bromofluorobenzene 121 80 -120 None
MethodfLaboratory Reagent Blank detections
Reported
Lab Report Well/Sample Analyte Concentration
CI0070314 MB Sulfate 0.6 mg/L
ClO070314 LRB Chromium 0.0001 mg/L
C10070314 LRB Silver 0.00005 mg/L
C10070314 LRB Tin 0.0003 mg/L
ClO070314 LRB Zinc 0.0005 mg/L
ClO080205 MB Gross alpha 0.1 pCi/L
TabF
C SV Transmittal
Kathy Weinel
From:
Sent:
To:
Subject:
Attachments:
Kathy Weinel
Tuesday, November 16,20101:49 PM
[e-mail]
Transmittal of CSV Files White Mesa Mill 201 0 Seeps and Springs Monitoring
1011115-EDD.csv; C10070314.csv
Attached to this e-mail are electronic copies of laboratory results for annual seeps and springs monitoring conducted at
the White Mesa Mill during 2010, in Comma Separated Value (CSV) format.
Please contact me at 303-389-4134 if you have any questions on this transmittal.
Yours Truly
Kathy Weinel
Denison Mines (USA) Corp.
Quality Assurance Manager
1