DRC-2010-006087 - 0901a068801df275

DRC-2010-00608
DENISO
MINES
Sent VIA Federal Express
November 19,2010
Mr. Rusty Lundberg
Co-Executive Secretary
Utah Water Quality Board
Utah Department of Environmental Quality
195 North 1950 West
P.O. Box 144810
Salt Lake City, UT 84114-4820
Denlson Mines (USA) Corp.
1050 17th Street, Suite 950
Denver, CO 80265
USA
Tel: [phone]
Fax: [phone]
www.denlsonmines.coTn
Re: Transmittal of Annual Tailings Wastewater Monitoring Report
Groundwater Quality Discharge Permit UGW370004 White Mesa Uranium Mill
Dear Mr. Lundberg:
Enclosed are two copies of the White Mesa Uranium Mill Annual Tailings Wastewater Monitoring
Report for 2010 as required by the Groundwater Quality Discharge Permit UGW370004, as well as
two CDs each containing a word searchable electronic copy of the report.
If you should have any questions regarding this report please contact me.
Yours very truly,
DENISON MINES (USA) CORP,
Jo Arm Tischler
Director, Compliance and Permitting
CC: Ron F. Hochstein
David C. Frydenlund
Harold R. Roberts
David E. Turk
Kathy Weinel
OENISOJ)~~
MINES
Sent VIA Federal Express
November 19,2010
Mr. Rusty Lundberg
Co-Executive Secretary
Utah Water Quality Board
Utah Department of Environmental Quality
195 North 1950 West
P.O. Box 144810
Salt Lake City, UT 84114-4820
Re: Transmittal of Annual Tailings Wastewater Monitoring Report
Denison Mines (USA) Corp.
1050 17th Street, Suite 950
Denver, CO 80265
USA
Tel: 303 628·7798
Fax: [phone]
www.denisonmines.com
Groundwater Quality Discharge Permit UGW370004 White Mesa Uranium Mill
Dear Mr. Lundberg:
Enclosed are two copies of the White Mesa Uranium Mill Annual Tailings Wastewater Monitoring
Report for 2010 as required by the Groundwater Quality Discharge Permit UGW370004, as well as
two CDs each containing a word searchable electronic copy of the report.
If you should have any questions regarding this report please contact me.
Yours very truly,
~LJ~
D EN[ ON MINES (USA) CORP.
Jo Ann Tischler
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 Tailings Cells Wastewater Sampling
Report
State of Utah
Groundwater Discharge Permit No. UGW370004
Prepared by:
Denison Mines (USA) Corp.
1050 1 ill Street Suite 950
Denver CO 80265
November 19,2010
TABLE OF CONTENTS
1.0 INTRODUCTION ..................................................................................................................... 1
2.0 SAMPLING EVENTS AND SAMPLING METHODOLOGY ............................................... 1
2.1 Sampling Events .................................................................................................................... 1
2.2.1 Tailings Wastewater Compliance Monitoring ................................................................ 1
2.2 Field Data ............................................................................................................................... 2
2.3 Sampling Methodology, Equipment and Decontamination Procedures ................................ 2
2.3.1 Tailings Cells .................................................................................................................. 2
2.3.2 Cell 2 Slimes Drain ......................................................................................................... 2
2.3.3 Ce1l4A Leak Detection System ..................................................................................... 3
2.3.4 Cells 1 and 3 Leak Detection System ............................................................................ .3
2.3.5 Cell 2 Leak Detection System ........................................................................................ 3
2.4 Field QC Samples .................................................................................................................. 4
2.5 Laboratory Results ................................................................................................................. 4
3.0 QUALITY ASSURANCE AND DATA EVALUATION ....................................................... .4
3.1 Adherence to Sampling Plan and Permit Requirements ........................................................ 5
3.2 Analyte Completeness Review .............................................................................................. 6
3.3 Data Validation ...................................................................................................................... 6
3.3.1 Field Data QAlQC Evaluation ........................................................................................ 6
3.3.2 Holding Time Evaluation ............................................................................................... 7
3.3.3 Laboratory Receipt Temperature Check ......................................................................... 7
3.3.4 Analytical Method Check ............................................................................................... 7
3.3.5 Reporting Limit Evaluation ............................................................................................ 7
3.3.6 Trip Blank Evaluation ..................................................................................................... 8
3.3.7 QAIQC Evaluation for Sample Duplicates ..................................................................... 8
3.3.8 Radiologies Counting Error ............................................................................................ 8
3.3.9 Laboratory Matrix QC Evaluation .................................................................................. 9
4.0 HISTORIC DATA ................................................................................................................... 11
5.0 SUMMARY AND CONCLUSIONS ...................................................................................... 11
5.1 Cell 1 .................................................................................................................................... 11
5.2 Cell 3 .................................................................................................................................... 11
5.3 Ce1l4A ................................................................................................................................. 12
5.4 Cell 2 Slimes Drain .............................................................................................................. 12
5.5 Cells 3 and 4A Slimes Drain ............................................................................................... 12
5.6 Cell 2 Leak Detection System ............................................................................................. 13
5.7 Cells 1 and 3 Leak Detection System .................................................................................. 13
5.S Ce1l4A Leak Detection System .......................................................................................... 13
5.9 Summary and Conclusions of Analytical Results ............................................................... 13
6.0 CORRECTIVE ACTION REPORT ........................................................................................ 14
6.1 Identification and Definition of the Problem ....................................................................... 14
6.2 Assignment of Responsibility for Investigating the Problem .............................................. 14
6.3 Investigation and Determination of Cause of the Problem .................................................. 14
6.4 Determination of a Corrective Action to Eliminate the Problem ....................................... .15
6.5 Assigning and Accepting Responsibility for Implementing the Corrective Action ............ 15
6.6 Implementing the Corrective Action and Evaluating Effectiveness .................................... 15
6.7 Verifying that the Corrective Action Has Eliminated the Problem ..................................... 15
6.S Verification of Corrective Actions from 2009 ..................................................................... 16
7.0 SIGNATURE AND CERTIFICATION .................................................................................. 17
LIST OF TABLES
Table 1 Summary of2010 Tailings Cell Wastewater Monitoring
INDEX OF TABS
Tab A Tailings and Slimes Drain Field Sheets -2010
Tab B Sample Location Figures
Tab C Laboratory Analytical Reports
Tab D Chemical and Radiological Summary Tables
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 QAJQC Evaluation for Sample Duplicates
E-7 Radiologies Counting Error
E-S Laboratory Matrix QC Evaluation
11
2010 ANNUAL TAILINGS CELLS WASTEWATER SAMPLING REPORT
1.0 INTRODUCTION
This is the 2010 Annual Tailings Cells Wastewater Sampling Report for the Denison Mines
(USA) Corp. ("Denison") White Mesa Mill (the "Mill"), as required under Part I.F.9 of the
Mill's State of Utah Groundwater Discharge Permit No. UGW370004 (the "Permit") and Section
7 of the Mill's Tailings and Slimes Drain Sampling and Analysis Program, Revision: 0,
November 20,2008 (the "Sampling Plan").
Tailings and slimes drain sampling is required under the Sampling Plan and Part I.E. 1 0 of the
Permit to be conducted on an annual basis in August of each year for the solutions in tailings
Cells 1, 3, and 4A, the solutions in the slimes drains in Cells 2, 3 and 4A (for Cells 3 and 4A
after the commencement of dewatering), the solutions in the leak detection system (LDS) in Cell
4A and any detected solutions in the LDS in Cells 1,2, and 3 at the time of the August Sampling
event. The results of the sampling event are required to be reported to the State of Utah
Department of Environmental Quality ("UDEQ") with the Mill's Third Quarter Groundwater
Monitoring Report due December 1, of each year. While tailings and slimes drain samples have
been collected previously, the 2009 sampling was the first to be conducted under the Sampling
Plan and Permit.
2.0 SAMPLING EVENTS AND SAMPLING METHODOLOGY
2.1 Sampling Events
Samples of solutions from tailings Cells 1, 3, and 4A, the Cell 2 slimes drain and the Cell 4A
LDS were collected on August 3, 2010. A minimal amount of fluid was observed in the Cell 2
LDS and a sample of that fluid was also collected. A field duplicate of the Cell 2 slimes drain
was collected (Slimes 65).
In accordance with the Sampling Plan, UDEQ was notified of the sampling event and a UDEQ
representative was present for a part of the sampling. The UDEQ representative collected a split
sample of the Tailings CellI sample.
Maps showing the locations of the tailings and slimes drain and, when applicable, LDS sampling
locations are attached under Tab B. Tailings wastewater sampling required by the Permit is
discussed in the remainder of this section.
2.2.1 Tailings Wastewater Compliance Monitoring
Table 1, included in the Tables Tab, provides an overview of all tailings wastewater monitoring
samples collected during the current period and includes the sampling date, laboratory report
date, and the work order/lab set ID associated with the analytical data.
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The Permit requires that the tailings wastewater samples be analyzed for the water quality
parameters listed in Table 2 of the Permit and Semivolatile Organic Compounds ("SVOCs").
The Permit requires that field specific conductance ("conductivity"), pH and temperature be
measured for each sample. However, during this sampling event conductivity and pH were
completed by the analytical laboratory rather than as a field measurement, due to the inability of
Denison's field measurement instrument to withstand the low pH of the tailings solutions. A
UDEQ representative was present during the sampling events for 2009 and 2010. During both of
those sampling events, conductivity and pH were completed by the analytical laboratory, and the
UDEQ Representative present observed the procedures and posed no objections. The
conductivity and pH are reported in the analytical data included in Tab C. This matter is
discussed in further detail in Section 3.1.
2.2 Field Data
Attached under Tab A are copies of all of the field data sheets recorded in association with the
annual tailings wastewater monitoring program. Sampling dates are listed in Table 1.
2.3 Sampling Methodology, Equipment and Decontamination Procedures
2.3.1 Tailings Cells
Tailings fluid samples were collected at the tailings cell sampling stations shown in Tab B by
extending collection tubing approximately 6 feet from the edge of the sampling stations. The
tubing was attached to a horizontal rod and the suction end of the tubing was lowered to
approximately 1/3 of the distance between the liquid surface and the underlying solids.
The collection tubing was attached to a peristaltic pump. Samples collected for metals and gross
alpha were filtered, through a 0.45 micron filter. The tubing and filter were replaced prior to
each use to preclude cross contamination and to eliminate the need for decontamination of
sampling equipment. Due to the nature of the peristaltic pump, sample fluids do not come in
contact with any surface other than the interior of the tubing, and decontamination of the pump
or rinsate blanks is therefore not required.
2.3.2 Cell 2 Slimes Drain
Once a tailings cell has started the dewatering procedures, a sample should be collected from the
slimes drain system. At this time Cell 2 is the only slimes drain that requires sampling. The
location of the slimes drain for Cell 2 is shown in Tab B. While Cells 3 and 4A are equipped
with slimes drain sample locations, the Cells are still active and the slimes drains will not be
pumped (and/or sampled) until dewatering operations have commenced.
The Cell 2 slimes drain was sampled using a disposable bailer thus eliminating the chance of
sample contamination and the need for decontamination of sampling equipment or the collection
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of a rinsate blank sample. Mill staff opted to use disposable bailers rather than the dedicated
sampling ladle concept contemplated by Section 2 of the Sampling Plan to preclude the potential
for cross contamination. This variance from the Sampling Plan was considered an improvement
over the Sampling Plan requirement and was consistent in both the 2009 and 2010 sampling
events. The UDEQ Representative present for the entire 2009 sampling event and a portion of
the 2010 sampling observed the procedures and posed no objections. Samples for metals and
gross alpha were first stored in a large plastic container and then a peristaltic pump was used to
pump the contents of that container directly into the final sample containers, through a 0.45
micron filter. The tubing in the pump, the filters and the bailers were disposed of and not reused,
thereby eliminating the need for decontamination of equipment or rinsate blanks.
2.3.3 Cell 4A Leak Detection System
The Cell 4A LDS samples were collected directly from the LDS discharge line into the sample
containers, and decontamination was not required. Samples for metals and gross alpha were first
stored in a large plastic container and then a peristaltic pump was used to pump the contents of
that container directly into the final sample containers, through a 0.45 micron filter. The filters
and tubing in the pump were disposed of and not reused, thereby eliminating the need for
decontamination of equipment or rinsate blanks.
2.3.4 Cells 1 and 3 Leak Detection System
The Cells I and 3 LDSs were not sampled during the 20 I 0 sampling event because the systems
were dry.
The CellI LDS was sampled independent ofthis tailings wastewater monitoring event on June
3,2010 and August 8, 2010. These CellI LDS sampling events were conducted as a result of
fluids observed in the CellI LDS. Data from these independent sampling events will be
reported under separate cover as part of the Cell 1 LDS repair report which will be submitted at
the completion of the Cell 1 LDS repairs. The schedule for the completion of the Cell 1 repairs
and the associated report is detailed in the Denison letter to UDEQ dated August 30,2010.
2.3.5 Cell 2 Leak Detection System
Mill staff placed a rainproof cover over the Cell 2 LDS stand pipe in the fall of 2009, as a result
of observations of precipitation in the pipe during the 2009 sampling event. Additional
precipitation entering the pipe has been minimal as the amount of liquid noted during the August
3,2010 sampling event was only a few inches deep. The liquid cannot be removed as the pipe is
too long to be pumped by a peristaltic pump and the liquid is not sufficient to prime a well pump
(down-hole pump). The cover precludes evaporation.
At the request of the UDEQ representative, a sample was collected from the standing water in
the Cell 2 LDS. The sample was collected to compare the chemistry of the standing liquid in the
Cell 2 LDS to the chemistry of the liquids in the Cell 2 slimes drain and in the other tailings
liquids. Sample results are discussed in Section 3 of this report.
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The liquid in the Cell 2 LDS was sampled using a disposable bailer, thus eliminating the chance
of sample contamination and the need for decontamination of sampling equipment or the
collection of a rinsate blank sample. Mill staff opted to use disposable bailers rather than the
dedicated sampling ladle concept contemplated by Section 3 of the Sampling Plan to preclude
the potential for cross contamination. This variance from the Sampling Plan was considered an
improvement over the Sampling Plan requirements and was consistent in both the 2009 and 2010
sampling events. The UDEQ Representative present for the entire 2009 sampling event and a
portion of the 2010 sampling observed the procedures and posed no objections. Samples for
metals and gross alpha were first stored in a large plastic container and then a peristaltic pump
was used to pump the contents of that container directly into the final sample containers, through
a 0.45 micron filter. The tubing in the pump, the filters and the bailers were disposed of and not
reused, thereby eliminating the need for decontamination of equipment or rinsate blanks.
2.4 Field QC Samples
The field Quality Control ("QC") samples generated during this sampling event included one
duplicate and one trip blank per shipment to each laboratory which received samples for Volatile
Organic Compounds (VOCs). The duplicate sample (Slimes 65) was 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.
2.5 Laboratory Results
All analytical results are provided by one of the Mill's two contract analytical laboratories,
Energy Laboratories ("EL") or America West Analytical Laboratories ("AWAL").
The laboratories utilized during this investigation were certified under the Environmental Lab
Certification Program administered by the UDEQ Bureau of Lab Improvement for the analyses
they completed.
The analytical data as well as the laboratory Quality Assurance ("QA")/QC summaries are
included under Tab C.
3.0 QUALITY ASSURANCE AND DATA EVALUATION
The Permit requires that the annual tailings wastewater 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 tailings wastewater
sampling program and 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 the requirements of the Permit, QAP and Sampling Plan. As required in the QAP,
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data QA includes 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 3.3.1.
Discussion of adherence to the Sampling Plan is provided in Section 3.1. Analytical
completeness review results are provided in Section 3.2. The steps and tests applied to check
laboratory data QAlQC are discussed in Sections 3.3.1 through 3.3.9 below.
The Analytical Laboratories have provided summary reports of the analytical QAlQC
measurements necessary to maintain confonnance 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 fonns for each set of Analytical Results, follow the analytical results
under Tab C. Results of review of the laboratory QAlQC infonnation are provided under Tab E
and discussed in Section 3.3, below.
3.1 Adherence to Sampling Plan and Permit Requirements
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. The Sampling Plan states that the blind duplicate
will be collected by combining all materials from one location into a single container. The
sampling plan then states that "A split will then be taken from that vessel and submitted to an
outside laboratory." This procedure was not followed for 2 reasons: 1) VOCs should never be
collected into one container and transferred to another as a loss of the VOC constituents will
result; and 2) due to the acidic and corrosive nature of the tailings solutions, handling and
transfer from container to container should be limited to minimize health and safety concerns.
The duplicate samples were collected by first filling the sample container followed by immediate
collection of the duplicate container for the same constituent (i.e VOC container followed by
duplicate VOC container etc.). Denison intends to prepare a revision to the Sampling Plan to
address this issue.
Other variations from the Sampling Plan were noted during the review of the sampling
procedures used during this monitoring event. The Sampling Plan states that a ladle will be used
to collect slimes drain samples and pumps will be used to collect LDS samples. During this
investigation a ladle was not used to collect the Cell 2 slimes drain sample; a disposable bailer
was used. Disposable equipment is preferable to decontaminated reuseable equipment as it
prevents cross contamination. Additionally, a ladle would allow more loss of VOCs due to its
open, unsealed nature. A pump was not used to sample either the Cell 2 LDS or the Cell 4A
LDS. In the case of the Cell 2 LDS, a bailer was used because a peristaltic pump is not strong
enough to pump fluids from the bottom of the pipe. The minimum amount of water present
prevented a well pump from being used. A peristaltic pump was not used for Cell 4A, as Cell
4A is equipped with an internal pump system and the samples were collected directly from the
pump system discharge. Denison intends to prepare a revision to the Sampling Plan to address
this issue.
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On a review of adherence by Mill personnel to the Permit, the QA Manager observed that
QAJQC requirements established in the QAP were being adhered to and that the Permit
requirements were implemented except as noted below.
One variance from the requirements in the Permit was noted. The Permit, Section I.E. I D( d) I)
requires the collection of field pH, temperature and conductivity. All of the tailings wastewater
samples were analyzed for pH and conductivity by one of the Mill's contracted laboratories.
These measurements were not collected in the field because during a previous sampling event the
tailings wastewater solutions corroded the field meter which resulted in the loss of the meter and
erroneous measurements following the first sample. The laboratory was able to complete the
measurements due to the facilities available to dilute the tailings wastewater samples prior to the
measurement of the parameters. In addition, the instruments in use by the laboratories are
"sturdier" and less apt to be affected by the tailings wastewater solutions. A temperature
measurement was not collected, as the Mill's field instrument is a "multimeter" and all
components, including temperature, are housed in a single unit. Collection of a temperature
measurement would have resulted in the loss of the meter. Further, because of the minimal
buffering capacity due to the low pH of the tailings solutions, the laboratory measurements are
comparable to measurements taken during the sampling and accurately reflect the field
conditions. Denison intends to prepare an amendment to the Permit or request for variance to
address this issue.
3.2 Analyte Completeness Review
All analyses required by the Permit Table 2 were completed. In addition, all tailings wastewater
samples were analyzed for SVOCs as required by the Permit.
3.3 Data Validation
The QAP and the Permit identify the data validation steps and data quality control checks
required for the tailings wastewater monitoring program. Consistent with these requirements, the
QA Manager performed the following evaluations: a field data QAIQC 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.
3.3.1 Field Data QAlQC Evaluation
The QA Manager performs a review of all field recorded parameters to assess their adherence
with 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 that the depth to water was immediately measured prior to sample collection in the
Cell 2 slimes drain as required by the Permit; however, due to this requirement being
inadvertently omitted from the Sampling Plan, the measurement was not recorded on the field
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data sheet. Depth to water measurements in the Cell 2 slimes drain are conducted weekly as
required by the Discharge Minimization Technology Monitoring Plan.
The data point which was not recorded does not affect the usability of the data as the depth to
water is recorded weekly. Corrective actions are discussed in Section 6.0.
3.3.2 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.
3.3.3 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. It
should be noted that the QAP requires that samples be received at 6°C or lower. Denison intends
to prepare a revision to the Sampling Plan to address this inconsistency.
3.3.4 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.
3.3.5 Reporting Limit Evaluation
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 several sets of
sample results had the reporting limit raised for at least one analyte due to matrix interference
and/or sample dilution. In all but 4 cases the reported value for the analyte was higher than the
increased detection limit. The 4 cases involve the mercury results for the Cell 2 slimes drain,
Cell 3 tailings liquid, Cell 4A tailings liquid and the Cell 2 slimes drain duplicate. In all 4 of
those samples the mercury results were reported as nondetect at 4.0 ug/L due to sample dilutions
which were necessary due to high concentrations of other metals in the samples. The permit
requires a reporting limit less than the Groundwater Quality Standard ("GWQS") of 2.0 ug/L.
The laboratory inadvertently reported the mercury data from the diluted analysis and did not
reanalyze the sample at a lower dilution and report the mercury from the lower dilution as
required by Denison protocols. To prevent recurrence of this issue, for future sampling events
the metals data will be reviewed shortly after receipt to allow reanalysis of samples within
holding time if necessary. The mercury results for the Cell 1 tailings solution, Cell 2 LDS, and
Cell 4A LDS samples were acceptable or were diluted due to mercury concentration which
resulted in the reported concentrations being significantly higher than the required reporting
limit.
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3.3.6 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.
3.3.7 QAlQC Evaluation for Sample Duplicates
Section 9.1.4 a) of the QAP states that RPDs 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 tailings wastewater samples except for
chloride in the duplicate pair Cell 2 slimes drain/slimes 65. These results are greater than 5 times
the required reporting limit and the RPD is greater than 20 percent (26.7%). The one duplicate
result with an RPD greater than 20% is acceptable due to the high concentrations of chloride in
the samples which resulted in the laboratory performing dilutions. The dilutions are most likely
the cause of the noncompliant RPD results. Because the results are significantly higher than the
GWQS of 1.0 mg/L the analytical results are acceptable and the data are usable. Results of the
RPD test are provided under Tab E.
3.3.8 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 GWCL (for the tailings wastewater samples the 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 tailings wastewater
radiologic sample results met the counting error requirement as well as the duplicate
comparability check specified in the QAP.
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3.3.9 Laboratory Matrix QC Evaluation
Section 9.2 ofthe QAP requires that the laboratory's QAlQC Manager check the following items
in developing data reports: (1) sample preparation information is correct and complete, (2)
analysis information is correct and complete, (3) appropriate analytical laboratory procedures are
followed, (4) analytical results are correct and complete, (5) QC samples are within established
control limits, (6) blanks are within QC limits, (7) special sample preparation and analytical
requirements have been met, and (8) documentation is complete. In addition to other laboratory
checks described above, DUSA's QA Manager rechecks QC samples and blanks (items (5) and
(6)) to confirm that the percent recovery for spikes and the relative percent difference for spike
duplicates are within the method-specific required limits, or that the case narrative sufficiently
explains any deviation from these limits. Results of this quantitative check are provided under
Tab E. All lab QA/QC results from both EL and A W AL met these requirements. There were
QC results which did not meet laboratory established acceptance limits, as identified in Tab E
and described below.
A significant number of the tailings wastewater samples had the reporting limit raised for
multiple analytes due to matrix interference and/or sample dilution. In all cases where a positive
result was reported the concentration for the analyte was higher than the increased detection limit
except as previously discussed in Section 3.3.5.
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 E9DD.l, used to determine gross alpha, a sample duplicate was used instead
ofaMSD.
All qualifiers, and the corresponding explanations reported in the QA/QC Summary Reports for
any ofthe 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 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
DUSA 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 the laboratory established
9
N:\Required Reports\Annua\ Tailings Characterization Report\2010\2010 tailings report text.docx
acceptance limits. The QAP does not require this level of review and the results of this review
are provided for information only.
The information from the Laboratory QAJQC Summary Reports indicates that the MS/MSDs
recoveries and the associated RPDs for all tailings wastewater samples were within acceptable
laboratory limits for all regulated compounds except as indicated in Tab E. The recoveries and
RPDs which are outside of the laboratory established acceptance limits do not affect the quality
or usability of the data because the recoveries and RPDs above the acceptance limits are
indicative of matrix interference. Furthermore, the metals sample (C 1 0080205) spiked for the
MS/MSD analyses were not collected at the Mill, and as such the matrix interference is not
applicable to the Mill samples reported herein.
There were 2 VOC compounds in the MS/MSD pair outside of acceptance limits in the Cell 2
LDS sample. The results were above the upper limit or had a high recovery, indicating a high
bias to the sample results. A high bias means that the reported result for this analyte will tend to
be higher than it actually is. There is no affect on the quality or usability of the data.
The SY~C analyses were problematic due to the natural pH of the samples as collected. The
low recovery reported in the SVOC analyses was due to a matrix interference. The laboratory
(A W AL) contacted the QA Manager at the time of analysis with concerns regarding the loss of
spike compounds in a fraction of the SVOC analyses. The SVOC extraction procedure requires
that the samples be brought to a pH of greater than 12 in order to extract the base/neutral SVOC
compounds. Because the samples, as collected, were at a pH of approximately 2 the laboratory
added over 80 milliliters of sodium hydroxide to each sample in order to raise the pH to
complete the extraction. The large volume of sodium hydroxide added most likely resulted in the
loss of the matrix spike compounds noted in Tab E. The QAP requirement to analyze a MS/MSD
pair with each analytical batch was met and as such the data are compliant with the QAP.
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 QAJQC Summary Reports indicates that the surrogate recoveries for all
tailings wastewater samples were within acceptable laboratory limits for all surrogate
compounds except as indicated in Tab E. There are 3 surrogate recoveries outside of acceptance
limits for the SVOC analyses. In all instances the surrogate recoveries outside of acceptance
limits were the result of a matrix interference. As previously stated, the large volume of sodium
hydroxide added most likely resulted in the loss of the surrogate compounds noted in Tab E.
There are other surrogate compounds used for SVOC analyses which were all within acceptance
limits. As such there is no effect on the quality or usability of the data. Since surrogate
compounds were added to all of the organic analyses as required by the QAP, the data are
compliant with the QAP requirements.
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 blank) will be used to
evaluate any analytical laboratory contamination of environmental samples. The QAP does not
10
N:\Required Reports\AnnuaJ Tailings Characterization Report\201 0\201 0 taHings report text doc"
specify the process for evaluation of 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 within an order of magnitude of the sample results.
Five analytes were reported in the method blanks from EL. Method blank results are included in
Tab E. In all cases the method blank results were not within an order of magnitude of the
positive sample results. The QAP requirement to analyze a method blank with each batch and
evaluate the results has been completed as required.
4.0 HISTORIC DATA
The historic analytical data for the tailings wastewater sampling program are included in Tab D.
In addition, the minimum and maximum concentrations compiled in the Utah Division of
Radiation Control Groundwater Quality Discharge Permit, Statement of Basis for a Uranium
Mining Facility at White Mesa, South of Blanding, Utah, dated December 1, 2004 are included
in Tab D.
It is important to note that the tetrahydrofuran data for the 2009 annual sampling event was
inadvertently omitted from the 2009 report. The 2009 tetrahydrofuran data are included in Tab
D and the data have been added to the tables as appropriate.
5.0 SUMMARY AND CONCLUSIONS
5.1 CellI
Cell 1 solutions were acidic in nature with a laboratory pH of 2.73. As expected, the solutions
contained high concentrations of metals, limited VOCs and, with the exception of Bis (2-
ethylhexyl) phthalate, SVOCs were not detected. Bis (2-ethylhexyl) phthalate is a common
constituent of plastics and nitrile gloves and is most likely an artifact (that is, a detection
resulting from the contamination of the samples by exposure to plastics or other synthetic
materials). Regarding major ions; chloride, magnesium, ammonia, sodium and sulfate were one
to three orders of magnitude greater in concentration than the other major ions. Metals exhibiting
the greatest concentration by at least one order of magnitude included arsenic, cobalt, copper,
iron, manganese, molybdenum, nickel, uranium, vanadium and zinc. Regarding VOCs, acetone
was detected at two orders of magnitude greater than other detected VOCs, however, it was
reported at approximately 2.5 times less than the 2009 sample result. When comparing these data
to prior samplings, metals exhibited similar characteristics to previous sample results. Overall,
the concentrations reported in the 2010 sample decreased from the 2009 sample with the
exception of calcium, fluoride, iron and naphthalene which all increased from the previous year.
5.2 Cell 3
Cell 3 solutions were acidic in nature, with a laboratory pH of 2.18. As expected, the solutions
contained high concentrations of metals and limited VOCs. SVOCs were not detected. The Cell
3 solutions from the 2010 sampling event were significantly different from the 2009 results. In
the 2009 results, metals content was notably absent, with the exception of beryllium, iron,
11
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molybdenum, and uranium. Review of the 2009 metals data with regard to historic results as
well as 2010 results, indicates that the 2009 metals data are most likely the result of a sample
switch in the laboratory. The 2009 Cell 3 samples are well beyond the holding times and cannot
be reanalyzed at this time. To prevent recurrence of potentially incorrect data, Denison will
review data shortly after receipt to allow for reanalysis within holding times as necessary. The
2010 data are similar in metals content to Cell 1 tailings fluids. Regarding major ions, chloride,
magnesium, ammonia, sodium and sulfate were generally one to two orders of magnitude greater
in concentration than the other major ions. With respect to VOCs, only acetone, chloroform,
chloromethane, and naphthalene were detected at low concentrations. Overall, with the
exception of the metals data previously mentioned, the concentrations reported in the 2010
sample decreased from the 2009 sample except for fluoride, chloromethane and naphthalene
which all increased from the previous year.
5.3 Cell4A
Cell4A solutions were acidic in nature, with a laboratory pH of 1.99. As expected, the solutions
contained high concentrations of metals, limited VOCs and, with the exception of Bis (2-
ethylhexyl) phthalate, SVOCs were not detected. Bis (2-ethylhexyl) phthalate is a common
constituent of plastics and most likely an artifact. As was the case for Cells 1 and 3, Ce1l4A fluid
exhibited the highest major ion concentrations for chloride, magnesium, ammonia, sodium and
sulfate. Potassium was also an order of magnitude higher in the Cell 4A sample. For metals,
arsenic, cobalt, copper, iron, lead, manganese, molybdenum, nickel, uranium, vanadium and zinc
were one or more orders of magnitude greater than the other metals analyzed. Comparison of
Cell 4A fluids to those of Cells 1 and 3 reveals that Cell 4A is similar in composition to the
fluids in both Cell 1 and Cell 3. VOC presence was limited, with the only measurable
compounds being acetone, chloroform, and chloromethane. Overall, the concentrations reported
in the 2010 sample increased from the 2009 sample.
5.4 Cell 2 Slimes Drain
Cell 2 Slimes drain fluid was acidic in nature, with a laboratory pH of 3.39. As expected, the
solutions contained high concentrations of metals, limited VOCs and, with the exception of
phenol, SVOCs were not detected. Phenol is used as a sludge inhibitor additive in fuel
hydrocarbons and may be present in the kerosene extractant used in the Mill's solvent extraction
circuit. Major ions which were highest in concentration by one or more orders of magnitude
included chloride, magnesium, ammonia, sodium and sulfate. For metals, arsenic, cobalt, copper,
iron, manganese, nickel, uranium, vanadium and zinc were at least one order of magnitude
greater in concentration than other metals analyzed. VOCs were limited to low concentrations of
acetone, chloroform, chloromethane, MEK, naphthalene, toluene and xylenes. Overall, the
concentrations reported in the 2010 sample both increased and decreased from the 2009 sample
with approximately one-half increasing and one-half decreasing.
5.5 Cells 3 and 4A Slimes Drain
In accordance with the Permit, the slimes drain for Cell 3 is not required to be sampled until
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dewatering operations have begun. Cell 1 is an evaporation pond and does not have a slimes
drain.
5.6 Cell 2 Leak Detection System
Cell 2 LDS fluids were neutral, with a laboratory pH of 7.36. Major ions were reduced
significantly when compared to tailings fluid with higher concentrations noted for chloride,
magnesium, sodium and sulfate. For metals, manganese was the most concentrated but greatly
reduced when compared to tailings solution. VOCs were not measured in excess of laboratory
detection limits except for tetrahydrofuran. SVOCs were not detected in the Cell 2 LDS.
Comparison of the 2010 results to the results from 2009 show that the samples concentrations are
similar and are most likely due to the unevaporated precipitation that was trapped in 2009 when
the stand pipe was capped. Based on the significant differences between the chemistry of the
water in the Cell 2 LDS compared to the Cell 2 slimes drain and the other tailings cells, it is
unlikely that the water represents potential seepage from Cell 2. Overall, the concentrations
reported in the 2010 sample decreased from the 2009 sample with the exception of bicarbonate
and selenium. Tetrahydrofuran was not detected in the 2009 sample at a raised RL (l00 ug/L)
due to sample dilution and as such no comparison can be made to the concentration reported in
the 2010 sample.
5.7 Cells 1 and 3 Leak Detection System
The Cells 1 and 3 leak detection systems were not sampled during the 2010 sampling event
because the systems were dry.
5.8 Cell 4A Leak Detection System
Fluids in the Cell 4A leak detection system were acidic in nature with a lab pH of 2.53. As
expected, the solutions contained high concentrations of metals, limited VOCs and, with the
exception of Bis (2-ethylhexyl) phthalate and phenol, SVOCs were not detected. Bis (2-
ethylhexyl) phthalate is a common constituent of plastics and most likely an artifact. Phenol is
used as a sludge inhibitor additive in fuel hydrocarbons and may be present in the kerosene
extractant used in the Mill's solvent extraction circuit. The major ions which exhibited the
greatest concentrations included chloride, magnesium, ammonia, sodium and sulfate. For metals,
arsenic, cobalt, copper, iron, manganese, molybdenum, nickel, uranium, vanadium and zinc were
one or more orders of magnitude greater in concentration than the other metals analyzed. The
VOC's acetone, chloromethane, chloroform, MEK, naphthalene and tetrahydrofuran were
measured at low concentration. Overall, the concentrations reported in the 2010 sample
decreased from the 2009 sample with the exception of fluoride, nitrogen, mercury, chloroform,
chloromethane, naphthalene, and tetrahydrofuran which all increased from the previous year.
5.9 Summary and Conclusions of Analytical Results
The metals arsenic, cobalt, copper, iron, manganese, molybdenum, nickel, uranium, vanadium
and zinc were generally present in greatest concentration for all samples. For major Ions,
13
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chloride, magnesium, ammonia, sodium and sulfate were predominant. VOCs with the greatest
concentrations in tailings fluids were acetone, chloroform and chloromethane. With the
exception of Bis (2-ethylhexyl) phthalate and phenol, SVOCs were not detected. Overall, the
concentrations reported in the 2010 samples decreased from the 2009 samples with the specific
exceptions noted by location.
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:
• The Permit requires the collection of field parameters including pH, conductivity and
temperature.
• Sampling procedures described in the Sampling Plan do not reflect current site conditions
(Cell 4A LDS samples are collected from discharge line), are incorrect (procedure for
collecting duplicates does not minimize volatilization) and are too prescriptive for site
conditions (Cell 2 LDS sampling procedure does not include the use of a bailer).
• Depth to water measurements for the Cell 2 slimes drain were not recorded immediately
prior to sampling.
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
Field Parameters
These measurements were not collected in the field because during a previous sampling event the
tailings wastewater solutions corroded the field meter which resulted in the loss of the meter and
erroneous measurements following the first sample.
Sampling Procedures
Sampling procedures used were acceptable. The Sampling Plan does not accurately reflect the
site conditions and needs to be updated to reflect current site conditions. Proposed revisions will
include but are not limited to changing the specified sampling procedures for the Cell 2 LDS,
Cell 2 slimes drain, and the Cell 4A LDS and removal of the requirement to measure pH,
conductivity and temperature in the field due to the unavailability of a field meter.
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Depth to Water Measurements for Cell 2 Slimes Drain
Depth to water measurements were completed at the time of sampling, however, the
measurement was not recorded on the field sheet as required. The data were not recorded due to
inadequate training of the Mill staff on the data collection requirements specified in the Permit.
6.4 Determination of a Corrective Action to Eliminate the Problem
Field Parameters
DUSA proposes that the Sampling Plan be revised to eliminate collection of pH, conductivity,
and temperature parameters in the field due to the inability to obtain field instrumentation which
will not be destroyed after each use. DUSA will propose measurement of pH and conductivity
by its contracted laboratories.
Sampling Procedures
The Sampling Plan will be revised to accurately reflect the current site conditions, correct the
duplicate sample collection protocols to methods appropriate for VOC samples, and will
incorporate disposable sampling equipment as an acceptable option.
Depth to Water Measurements for Cell 2 Slimes Drain
The Sampling Plan revision discussed above will include a revised field data form which will
prompt the field personnel to record the depth to water when necessary in the slimes drain.
Proper recording of the depth to water measurement prior to sampling the Cell 2 slimes drain
will be covered during training on the revised Sampling Plan. Training will be completed prior
to the next sampling event.
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 actions.
6.6 Implementing the Corrective Action and Evaluating Effectiveness
Implementation of the corrective action will follow DRC approval ofa 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
August 2011.
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6.8 Verification of Corrective Actions from 2009
The corrective action specified during the 2009 sampling event required the collection of the
duplicate sample by mixing the non-VOC fraction of samples into a large container followed by
filling the individual sample containers. This action was not taken and samples were collected
by alternating bottles. The RPDs for the 2010 sampling event were acceptable with only one
result exceeding the 20% criteria. The exceedence in the 2010 duplicate sample RPD was likely
due to a dilution error in the laboratory rather than a field sampling issue, because if the RPD
deviation was due to sampling issues then all of the RPDs for all analytes would be
noncompliant.
The duplicate sampling methodology specified in the 2009 annual report and the Sampling Plan
does not minimize sample handling. Although the corrective action specified in the previous
report was not implemented an alternative corrective action was implemented. The action that
was implemented, careful splitting of the sample aliquots, corrected the problem. The sampling
Plan revisions will propose removing the requirement to mix the sample and then fill sample
containers, to minimize sample handling, as the current procedure is effective for duplicate
collection as evidenced by the improved RPDs in 2010.
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7.0 SIGNATURE AND CERTIFICATION
This document was prepared by Denison Mines (USA) Corp. on November 19, 2010.
By:
Davi Frydenlund
Vice President, Regulatory Affairs and Counsel
Certification:
I certify, under penalty of law, that this document and all attachments were prepared
under my direction or supervision in accordance with a system designed to assure that qualified
personnel properly gather and evaluate the information submitted. Based on my inquiry of the
person or persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true, accurate,
and co plete I am aware that there are significant penalties for submitting false information,
includ g the ossibility of fine and imprisonment for knowing violations.
Dav . Fr enlund
Vice Pr sident, Regulatory Affairs and Counsel
Denison Mines (USA) Corp.
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N:lRequired ReportslAnnual Tailings Characterization Report120101201 0 tailings report text.docx
TABLES
Table 1 Summary of2010 Tailings Cell Wastewater Monitoring
Location Sample Date Date of Laboratory Work Order
Report NumberlLab Set ill
Cell 1 Tailings Fluid 8/3/10 EL-9/9/10 EL -C 1 0080205
AWAL-8/17/10 AWAL-I008101
Cell 2 Slimes Drain 8/3110 EL -9/9/10 EL - C 1 0080205
A W AL -8/17/10 AWAL -1008101
Slimes 65 (Duplicate of 8/3/10 EL -9/9/10 EL -CI0080205
Cell 2 Slimes Drain) AWAL-8117/10 AWAL -1008101
Cell 2 LDS 8/3110 EL -9/9/10 EL -CI0080205
A W AL -8/17/10 AWAL -1008101
Cell 3 Tailings Fluid 8/3/10 EL -9/9/10 EL -CI0080205
AWAL-8/17/10 AWAL -1008101
Cell 4A Tailings Fluid 8/3/10 EL -9/9/10 EL -CI0080205
AWAL-8/17/10 AWAL -1008101
Cell 4 LDS 8/3/10 EL -9/9/10 EL -CI0080205
A W AL -8/1711 0 A W AL -1008101
INDEX OF TABS
Tab A Tailings and Slimes Drain Field Sheets -2010
Tab B Sample Location Figures
Tab C Laboratory Analytical Reports
Tab D Chemical and Radiological Summary Tables
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 RepOlting Limit Evaluation
E-5 Trip Blank Evaluation
E-6 QNQC Evaluation for Sample Duplicates
E-7 Radiologies Counting Error
E-8 Laboratory Matrix QC Evaluation
Tab A
Tailings and Slimes Drain Field Sheets -2010
Tailings and Slimes Drain Field Sheet
Denison Mines (USA) Corp.
White Mesa Mill
Location c=:: e.I f I Date 8 -~ ~;lO 10
Samplers Name and hritials 'j;,Mu U .. I/;J,.IA Gar .. :" B./1I'tC", R""",.. P.I~ j' V
Time of Sampling Event -4L."LJ..Lr."",I1~S=:......-. ____ _
Weather Conditions during Event ~PA~r.1.!+'~6.....:('~I~O!!!wl~1~~ ....,:(,::..:.:.:, • ..,:1. _______ _
Sampling Equipment Used (other than dedicated) Pe. .. u\ot;.. p.....p. Ih'fgvJ,lc. {hI,,. {p,(~ttJ,( rs j
Where Samples Collected? @>r N (circle)
Indicated volume of sample collected .2 /a. G-4q." ~
Name of Certified Analytical Laboratory if Other ThaD Energy Labs APKr;~_" tA,>,S± I EK'Jl /,p.6,5
Comments:
( I
Tailings and Slimes Drain Field Sheet
Denison Mines (USA) Corp.
White Mesa Mill . " .
Location SI.mt!l '# J •
Sampl .... Name and Wtial, 10M" !l.II'~ 6-",,-:. fJ~v-, If*", f'J...v-
Time of Sampling Event 1050
Weather Conditions during Event -J.iP~w.....l!ll,--=c.l:;...;.:o:..::\,I.:.:::A~~~ ________ _
Sampling Equipment Used (other than dedicated) P~~tol:~ P"'l'\y, J~l;J(... 8/tv-11~cnY\ 45.
Where Samples Collected? @>r N (circle)
Indicated volume of sample collected .:J ~ t4"(>t1~
Name of Certified Analytical Laboratory if Other Than Energy Labs Amr.q14r1 kJQj-
Comments:
Tailings and Slimes Dl'ain Field Sheet
Location C k" ;t L 0$
Denison Mines (USA) Corp,
White Mesa Mill
Dale 8 --:t -J 0
Samplers Name and Initials T &66 Y" H.U~'( I 4,..,.,.: ---~e-l-.... ....
Time of Sampling Event ~1~a.:L..5"",,,,,,Q,,,--____ _
Weathcl' COllditions during Event --t.J&"",,,-,..t~lil-... ,....,l,...,c).J.!J:..o.<.>~~'i-________ _
Sampling Equipment Used (other than dedicated) P4.N>.5j=\"1.~c.. p.,o(? "t.;'PctSAitte.. ~:It-e.r-"",kw"C.>-A-. 4.~
Where Samples Collected? {j)r N (circle)
Indicated volume of slImple collected j.~ 641\ 0;1.$
Name of Celtified Analytical Laboratory if Other Thun Energy Labs A """'vi' (.AA.: tA,.) e..! t
Comments:
. .1
Tnilings and Slimes Drain Field Sheet
Location C. e. I \ ;3
Denison Mines (USA) Corp,
White Mesa Mill
bate <6 -;s. -2-0 I 0
Sampler,~ Name and Initials ~ar HolL"le.y. (,;;..,.1' •. 1\.. f ~'M.e.r
Time of Sampling Event _-"\'-"'"'--'-""'5'-"0=--____ _
Weathcl' Conditions during Event erwr+ l'f l.".la 1.1 rAy
Sampling Equipment Used (odler than dedicated) rlj..Cl!' ~o, i, Pq """P I '!'J'pa so-falc.. -r; I ~ " ...... ,"I'O~ '-I
Where Stlmples Collected? @r N (circle)
indicated volume of sample collected :1 . 5 &..Ilc. ",5
Name of Certified Analyticnl Laboratory if Other ThllO Eoergy Labs AM",t-'("()",A wG-$ t'
Comments:
A",,.ivul «A. $~t<..--A±J!:t.3.3Te-c"fcC I (;,4"';1\. ~ l4,.it....¥ fl'e.S&A-t
Por e" ..... M..t '''-MpkS ' ..... ("J'lL tp..k-w." c--:t I'"ISO '4-Mcf l:~ e.Ye0-t
e.t-J.J.. wY ISD:s, Ic..£+ Site.. 0.+ 11>10
(
Tailings and Slimes Drain Field Sheet
Denison Mines (USA) Corp.
White Mesa Mill
Location C. e-Il YA Date <t ~ '1. '0
Time of Sampling Event ---'J."""'3"-"SC-.c-______ _
Weather Conditions during Event ~e .... 4.. ..... ,..--' ....... L9yr--/.,I10&.1\""C1 .... vdf~~----------
Sampling Equipment Used (other than dedicated) ~ '»J.f.x:.lcj{ pu~ \ elLL/ezS41.\r. ~ilter-rAM~tc>", Li5
Where Samples Collected? @rN (circle)
Indicated volume of sample collected :&. 5 64-U 01\.$
Name of Certified Analytical Laboratory if Other Than Energy Labs AM.eJrti (eM W c.,,;'
Comments:
,A,..,.,vul,,1'-sif<. ... p...+ 1$30,T-=N\cC, 64-Cb .... ' (l.'f4',~t=bf P"'G""'t-.A4..
&,.. CNMrt Ce,."""p1e.' ,.,ac .. ~ ..-t b-~SO Cb .... P'~~ e,..,eA. ... e-"t.'41
.. +14,,) l~f.... sife. Prt ,~
'failings and Slimes Drain Field Sheet
Denison Mines (USA) Corp.
White Mesa Mill
Location ru.L-.i -I-J.ta~L~\)S~ Dale 8' . .3. Zo I ()
Sample" Name and In;t;,ls 12r'1 /Jrk {L P -
Time of Sampling Event _ ... /3"-Jf .......... O ____ _
Weather Conditions during EventS!.:::; !bei C/aI".Js .S£MI."j WM~
Sampling Equipment Used (otl\ec than dedicated) btl/:!. / kSrot'4 IAI J . 'is" /i/talJl'V -R 11::tt. r v /
Where S11mples Collected? (j),L' N (circle)
Indicated volume of sample collected g .,:L Cr~/~~
Name of Certified AnalytiClll Laborotory if Odler Thl\O Energy Labs L..!!fk'A L -
Comments:
TabB
Sample Location Figures
MW·02 •
\
MW-16
MW·03 •
•
Cell No.1
MW-17 •
PIEZ·2 •
PIEZ·3 •
OTW4-5
Cell No.2 ~4.1QFlTW4.9
0 OTW4.3 OTW4-12
lbTW4.11 orw4-13
~4.~-8
OTW4-1
OTW4-4arw 4·14
OTW4-6
PIEZ-4 >.<
33 ~-~-. • --/ ~ "/
PIEZ-5 •
Annual Tailings and Slime Dmin
Sample Locations
--
/
f
I
I
I
I
I
I
I
I
?-?
32
MW-12
MW-16 •
MW-03 •
MW-20 •
Cell No.1
MW-17 •
33
PIEZ-2
PIEZ-3 •
•
'n .. ,v .. ··IbTW4-11 OTW4-13
TW4-~-8
OTW4-1
OTW4-401W4_14
OTW4-6
PIEZ-4 •
PIEZ-5 •
Future Slimes Ilnd ~olltingcl\t
Leak Detectton
Sample Locations
Tab C
Laboratory Analytical Reports
EI\ERGY
_1-'r:.'.,ll/'.lGPI: .. _
www.energyllb.c:om
IItM1tJa/ baIIIa SIKt '81
Helena, IT 177-472-0711 • BiIIlnes, IT 801-735-4411 • Casper, WY 811-235-1515
GlIllIlte, WY 11&-111-1115 .-Rapid City, SD 118-172-1225 • ColleR8 Stltion, 1X 111-&111-2211
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
Annual Tailings Sample
C10080205-001
Client Sample 10: Cell 1
Analyses Result
MAJOR IONS
Acidity, Total as CaC03 26300
Carbonate as C03 NO
Bicarbonate as HC03 NO
Calcium 711
Chloride 7440
Fluoride 28.4
Magnesium 5410
Nitrogen, Ammonia as N 8120
Nitrogen, Nitrate+Nitrite as N 58
Potassium 1840
Sodium 16700
Sulfate 107000
Units
mg/L
mglL
mglL
mglL
mglL
mglL
mglL
mglL
mglL
mglL
mglL
mglL
-Acidity reported for informational purposes due to a sample pH of less than 4.
PHYSICAL PROPERTIES
pH 2.73 S.u.
Solids, Total Dissolved TOS @ 180 C 130000 mglL
METALS· DISSOLVED
Arsenic 74400 ug/L
Beryllium 338 ug/L
Cadmium 2940 ug/L
Chromium 5620 ug/L
Cobalt 16200 ug/L
Copper 125000 ug/L
Iron 3400000 uglL
Lead 9240 ug/L
Manganese 173000 uglL
Mercury 7.2 uglL
Molybdenum 35300 ug/L
Nickel 27500 ug/L
Selenium 5220 uglL
Silver 155 uglL
Thallium 193 uglL
Tin 263 uglL
Uranium 159000 ug/L
Vanadium 752000 uglL
Zinc 171000 ug/L
RADIONUCLIDES • DISSOLVED
Gross Alpha minus An & U 11300 pCi/L
Gross Alpha minus An & U Precision (±) 82.0 pCi/L
Gross Alpha minus An & U MOC 2.8 pCilL
Report AL -Analyte reporting limit.
Definitions: QCL • Quality control limit.
MDC -Minimum detectable concentration
Report Date: 09/09/10
Collection Date: 08/03/10 09:05
DateRecelved: 08/05/10
Matrix: Aqueous
MCU
Qualifiers RL QCL Method Anelysls Date 1 By
5 A2310 B 08/16/1010:221 ja
A2320 B 08/16/1009:30 I ja
A2320 B 08/16/1009:30 I ja
0 45 E200.7 08/10/10 15:33 I cp
A4500-CI B 08/24/1009:53/Ir
0 1.0 A4500-FC 08/17/1011 :361 ja
0 10 E200.7 08/10/10 15:33 I cp
0 100 A4500-NH3 G 08/24/1016:40 Iljl
0 2 E353.2 08/12110 21 :41 Iljl
0 3.9 E200.7 08/10/1015:331 cp
0 57 E200.7 08/10/1015:331 cp
0 2000 A4500-S04 E 08/25/10 14:27 Ilr
0,01 A4500-H B 08/06/10 13:12/1r
0 230 A2540 C 08/09/10 12:13/1r
5.0 E200.8 08/10/10 02:451 sml
0 1.3 E200.8 08/10/10 02:451 sml
0 0.72 E200.8 08/1011002:451 sml
25 E200.8 08/10/1002:451 sml
10 E200.8 08/10/1002:451 sml
10 E200.B OB/1 0/1 0 02:451 sml
0 300 E200.7 OB/10/10 15:331 cp
1.5 E200.8 08/10/1002:451 sml
10 E200.8 08/10/10 02:451 sml
0 4.0 E200.8 08/10/1002:451 sml
10 E200.8 08/10/1002:451 sml
0 35 E200.8 08/10/10 02:451 sml
0 12 E200.8 08/10/1002:451 sml
10 E200.8 08/10/1002:451 sml
0 0.58 E200.8 08/10/10 02:451 sml
100 E200.8 08/10/1002:451 sml
0 0.72 E200.8 08/10/1002:451 sml
15 E2oo.8 08/10/1002:451 sml
14 E2OO.B 08/10/1002:451 sml
E900.1 08/25/1002:111 plj
E900.1 08/25/1002:111 plj
E900.1 08/25/1002:111 plj
MCL - Maximum contaminant level.
NO -Not detected at the reporting limit.
o -AL increased due to sample matrix.
Page 4 of 39
EN:RGY ~-www.energylab.comHelena.MT 877-472~711 • Bllllnls, MT BGI-735-4411 • Casper. WY 111-235-8111 ~"". =-_,.",.. ___ EnaIIMI __ Silu __ 'IU_...£.... ___ GI_IIItt----=.8._WY_I_I_I-_III_-7_17_I_._R---'8P'---1d_C---,Ity"-, S_D_II_I-I_72_-_'22_5 _. CoI_IIII..::.8_S_ta_tion....;.;...TX_._I_I-I_I_It-_2_21_1 LI'>I ~C flf\I (-"lfl' 5-
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
Annual Tailings Sample
C10080205-001
Client Sample 10: Cell 1
Analyses
DATA QUAUTY
NC Balance (± 5)
Anions
Cations
Solids, Total Dissolved Calculated
TDS Balance (O.SO -1.20)
VOLATILE ORGANIC COMPOUNDS
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
Methyl ethyl ketone
Methylene chloride
Naphthalene
Toluene
Xylenes. Total
Surr: l,2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-dS
Report
Definitions:
RL -Analyte reporting limit.
eCL -Ouality control limit.
Result
-1.80
2450
2360
140000
0.930
260
NO
NO
4.9
4.4
65
NO
5.4
NO
NO
108
119
97.0
92.0
Units
%
meqlL
meqlL
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
Qualifiers RL
20
1.0
1.0
1.0
1.0
20
1.0
1.0
1.0
1.0
80-120
70-130
80-120
SO-120
Report Date: 09/09/10
Collection Date: 08/03/10 09:05
DateRecelved: 08/05/10
Matrix: Aqueous
MCU
QCl Method Analysis Date I By
Calculation 08126/1007:281 kbh
Calculation OS/26/10 07:28 I kbh
Calculation 08/26/10 07:28 / kbh
Calculation 08/26/10 07:28 / kbh
Calculation 08/26/10 07:2SI kbh
SWS260B 08/09/10 15:43/ jlr
SW8260B 08/09/1015:43/ jlr
SW8260B OS/09/10 15:43 I jlr
SW8260B 08/09/10 15:431 jlr
SW8260B OS/09/10 15:431 jlr
SW8260B OS/09/10 15:43/ jlr
SW8260B 08/09/10 15:43 I jlr
SW8260B 08/09/10 15:43 I jlr
SW8260B 08/09/10 15:431 jlr
SW8260B OS/09/10 15:43/ jlr
SWS260B 08/09/1015:43/ jlr
SW8260B 08/09/10 15:43 I jlr
SW8260B 08/09/10 15:431 jlr
SW8260B 08/09/1015:431 jlr
MeL -Maximum contaminant level.
NO -Not detected at the reporting limit.
Pa~e 5 of 39
A
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City. VT
84115
[phone]
Toll Free [phone]
Fax [phone]
email: [e-mail]
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-001 B
Client Sample ID: Cell 1
Collection Date: 8/3/2010 0905h
Received Date: 8/512010 1000h
Method Used: SW8270D
Analytical Results
Units: Ilg/L
Dilution Factor: 1
Compound
1,2,4-Trichlorobenzene
1,2-Dichlorobenzen.e
1 ,3-Dichl orobenzene
l,4-Dichlorobenzene
I-Methyl naphthalene
2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
2,4-Dichlorophenol
2,4-Dimethylphenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chloronaphthalene
2-Ch lorophenol
2-Methylnaphthalene
2-Methylphenol
2-Nitrophenol
3&4-Methylphenol
3,3' -DichloJobenzidine
4,6-Dinitro·2-methylphenol
4-Bromophenyl phenyl ether
4-Chloro-3-methylphenol
4-Chlorophenyl phenyl ether
4-Nitrophenol
Acenaphthene
Acenaphthylene
Anthracene
Azobenzene
Benz( a )anthracene
Contact: Jo Ann Tischler
Analyzed: 8/9/2010 1943h
Extracted: 8/9/2010 0905h
SVOAs List by GCIMS Method 8270D/351OC
CAS Reporting Analytical
Number Limit Result Qual
120-82-1 10.0 < 10.0
95-50-1 10.0 < 10.0
541-73-1 10.0 < 10.0
106-46-7 10.0 < 10.0
90-12-0 10.0 < 10.0
95-95-4 10.0 < 10.0
88-06-2 10.0 < 10.0
120-83-2 10.0 < 10.0
105-67-9 10.0 < 10.0
51-28-5 20.0 <20.0
121-14-2 10.0 < 10.0
606-20-2 10.0 < 10.0
91-58-7 10.0 < 10.0
95-57-8 10.0 < 10.0
91-57-6 10.0 < 10.0
95-48-7 10.0 < 10.0
88-75-5 10.0 < 10.0
10.0 < 10.0
91-94-1 10.0 < 10.0
534-52-1 10.0 < 10.0
101-55-3 10.0 < 10.0
59-50-7 10.0 < 10.0
7005-72-3 10.0 < 10.0
100-02-7 10.0 < 10.0
83-32-9 10.0 < 10.0
208-96·8 10.0 < 10.0
120-12-7 10.0 < 10.0
103-33·3 10.0 < 10.0
56·55·3 10.0 < 10.0
Report Date: 8/17/2010 Page 5 of70
All analy .... applicable to the CWA. SDWA. and RCRA are perfonned In accordance to NELAC protocol •. Penlneot sampll"8lnfonmaUon Is located on the attached COCo Thl. repan I. provided for the exclu.lve use ofthe
addressee. PrivUeges or subsequenl use oflhe name of this company or any member of Us staff, or reproduction of (his report In connecllon with the advertisement. promotion or sale of any product or process. or In connection
with the re-publlcllion of thl. repon for any purpose other than for the .ddr .... e will he granted only on cootact. This company .ccept. no responsibility except for the due perfonmance of InspecUOIl .ndlor analy.I.ln good f.lth
and according to the rules of the trade and ofscl""ce.
A
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
QAOfficer
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-001B
Client Sample ID: Cell 1
Collection Date: 8/3/20100905h
Received Date: 8/S/20101000h
Method Used: SW8270D
Analytical Results
Units: jlg/L
Dilution Factor: 1
Compound
Benzidine
Benzo( a)pyrene
Benzo(b )fluoranthene
Benzo(g,h,i)perylene
Benzo(k)tluoranthene
Bis(2-chloroethoxy)methane
Bis(2-chloroethyl) ether
Bis(2-chloroisopropyl) ether
Bis(2-ethylhexyl) phthalate
Butyl benzyl phthalate
Chrysene
Di-n-butyl phthalate
Di-n-octyl phthalate
Dibenz( a,h )an thracene
Diethyl phthalate
Dimethyl phthalate
Fluoranthene
Fluorene
Hexachlorobenzene
Hexaehlorobutadiene
HexaehlorocycIopentadiene
Hexachl'oroethane
Indeno(1,2,3-cd)pyrene
Isophorone
N-Nitrosodimethylamine
N-Nitrosodiphenylamine
N-Nitrosodi-n-propylamine
Naphthalene
Nitrobenzene
Contact: Jo Ann Tischler
Analyzed: 8/912010 1943h
Extracted: 8/9/2010 0905h
SVOAs List by GC/MS Method 8270D/3510C
CAS Reporting Analytical
Number Limit Result Qual
92-87-5 10.0 < 10.0
50-32-8 10.0 < 10.0
205-99-2 10.0 < 10.0
191-24-2 10.0 < 10.0
207-08-9 10.0 < 10.0
111-91-1 10.0 < 10.0
111-44-4 10.0 < 10.0
108-60-1 10.0 < 10.0
117-81-7 10.0 27.0
85-68-7 10.0 < 10.0
218-01-9 10.0 < 10.0
84-74-2 10.0 < 10.0
117-84-0 10.0 < 10.0
53-70-3 10.0 < 10.0
84-66-2 10.0 < 10.0
131-11-3 10.0 < 10.0
206-44-0 10.0 < 10.0
86-73-7 10.0 < 10.0
118-74-1 10.0 < 10.0
87-68-3 10.0 < 10.0
77-47-4 10.0 < 10.0
67-72-1 10.0 < 10.0
193-39-5 10.0 < 10.0
78-59-1 10.0 < 10.0
62-75-9 10.0 < 10.0
86-30-6 10.0 < 10.0
621-64-7 10.0 < 10.0
91-20-3 10.0 < 10.0
98-95-3 10.0 < 10.0
Report Date: 8117/2010 Page 6 of70
All analyse. applicable 10 the CWA. SDWA. and RCRA are penonned In accordance 10 NELAe prolocol •. Penmenl sampling Infonnatlon I. localed on Ihe attached COCo This repoIt II provided for the exclusive use of Ihe
addressee. Privileges of subsequenl use of Ih. name of Ihls company or any momber of lis staff, or reproduction oflhls report In connection wllh Ihe advertisement, promotion 0 .... 1e of any product or process, or In conneclion
wilh Ihe rO'JI'Iblication oflhls report for any JI'I'JIOS" otl.er lhan fOrlhe addressee will be granled only on conlaC!. '·hl. company accepts no resJl'lnslblllly except for !he due perfonnance oflnspeclton and/or analysis In good fallh
and according 10 lhe rules of Iholrade and of science.
A ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-001B
Client Sample ID: CeIl 1
Collection Date: 8/3120100905h
Received Date:
Method Used:
8/5/2010 l000h
SW8270D
Contact: Jo Ann Tischler
Analyzed: 8/9/2010 1943h
Extracted: 8/9/2010 0905h
AMERICAN
WEST
ANALYTICAL
LABORATORIES
Analytical Results SVOAs List by GC/MS Method 8270D/351OC
463 West 3600 South
Salt Lake City. UT
84115
Units: flg/L
Dilution Factor: 1
Compound
Pentachlorophenol
Phenanthrene
Phenol
Pyrene
[phone] Pyridine
Toll Free [phone] Surr: 2,4,6-Tribromophenol
Fax [phone] Surr: 2-Fluorobiphenyl
email: [e-mail] Surr: 2-Fluorophenol
SUIT: Nitrobenzene-dS
Kyle F. Gross
Laboratory Director
Surr: Phenol-d6
Surr: Terphenyl-dl4
CAS
Number
87-86-5
85-01-8
108-95-2
129-00-0
110-86-1
118-79-6
321-60-8
367-12-4
4165-60-0
13127-88-3
1718-51-0
Library search reqlliredjiJr 4-chlorophellol. IOIl chromatogram search 1I0t deleeted.
Jose Rocha
QAOfficer
Reporting Analytical
Limit Result Qual
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
14-159 63.1
10-124 71.4
10-106 12.S
10-180 93.6
10-122 38.9
10-199 84.6
Report Date: 8117/20 I 0 Page 7 of70
All analyses applicable to the CWA. SDWA. and RCRA are performed In accordance 10 NELAC prolocols. Pertlnenl sampling Informallon Is located on the anached COCo This report Is proVided for the exclusive use oflhe
addressee. Privileges of subsequent use of Ihe name of lhls company or any member of Its slaff, or repmducUoo of this report In connection with the advertlsemern. promollon or sale of any producl 01' prOCe55, or In connection
with the ",.publlcallon of this report fonny pu"""", other than for the addressee will be granted only on conlacl. This company accepls no responsibility except for the due performance of Inspection andlor analysis In good r.ilh
and according \0 lhe rules of the trade and ofselence.
A
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
QAOfficer
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-001A
Client Sample ID: Cell 1
Collection Date: 8/3/2010 0905h
Received Date:
Method Used:
Analytical Results
8/5/2010 1000h
SW8260C
Units: f.lglL
Dilution Factor: 10
Compound
Tetrahydrofuran
Surr: 1,2-Dichloroethane-d4
Surr: 4-Bromofluorobenzene
Surr: Dibromofluoromethane
Surr: Toluene-d8
The reporting limits were raised dl/e to sample matrix illteljerellces.
Contact: Jo Ann Tischler
Analyzed: 8/512010 2012h
VOAs by GC/MS Method 8260CIS030C
CAS Reporting Analytical
Number Limit Result Qual
109-99-9 10.0 < 10.0
17060-07-0 77-144 104
460-00-4 80-123 102
1868-53-7 80-124 95.8
2037-26-5 80-125 102
Report Date: 8/17/2010 Page 26 of70
Allanalyoes applicable 10 lbe CWA. SDWA. and RCRA are performed In accordance 10 NELAC prolocols. Pertinent sampling Informalion Is localed on the aUached COCo This report Is provided for the exclusive use oflhe
addressee. Privileges of subsequenl use oflh. name of this company or any member of lis staff, or reproducUon of this report In conoectlon wllh the advertlsemenl, promotion ... sale of any producl or proc ... , or In conne<:lIon
wllh the re·publlcatloo oflhls repoIt forany pUlj>05e other than for lbe addressee will be granted only on contact. This company accepts no responslblilly excepl ror the due performance ofinspecUoo and/or analysis In good fallh
and according 10 lbe rules of the trade and of science.
EI\ERGY
_,\h<.l(i\T!'llJlt c,
www.enerlYllb.com
,.",.. brIIIIta.a.. 1m
Helena, MT 177-472-8711 • Billings, MT 111·735-4411 • Casper, WY .... 23~D515
Gillette, WY 1.1-11&·7175 • Rapid City, SD 118·172·1225 • Colli,s Station, 1X ...... 11-2211
LABORATORY ANALYTICAL REPORT
Client: Denison Mines USA Corp Report Date: 09/09/10
Project: Annual Tailings Sample Collection Date: 08/03/10 10:50
LabID: C 10080205-002 DateRecelved: 08/05/10
Client Sample ID: Cell 2 Slimes Matrix: Aqueous
lieu
Analyses R.sult UnHs Quallfl.,. RL QCL M.thod Analysis Date I By
MAJOR IONS
Acidity, Total as CaC03 26800 mgIL 5 A2310 B 08/16/1010:221 ja
Carbonate as C03 ND mglL A2320 B 08/16/10 09:30 I ja
Bicarbonate as HC03 ND mglL A2320 B 08/16/1009:30 I ja
Calcium 496 mglL 0 11 E200.7 08/27/1016:261 cp
Chloride 3510 mglL A4500-C1 B 08/24/10 10:02 IIr
Fluoride 2.4 mglL 0 1.0 A4500·FC 08/17/10 11 :40 I ja
Magnesium 3790 mglL D 2.6 E200.7 08/27/10 16:261 cp
Nitrogen, Ammonia as N 3820 mglL 0 100 A4500·NH3G 08/24/10 16:42 I Ijl
Nitrogen, Nitrate+Nitrite as N 126 mglL 0 5 E353.2 08/23/10 15:16/1jl
Potassium 620 mglL D 0.97 E200.7 08/27/10 16:261 cp
Sodium 4770 mglL 0 14 E2oo.7 08/27/1016:261 cp
Sulfate 63700 mglL D 2000 A450o-S04 E 08/31/10 13:08 Iljl
• Acidity reported for informational purposes due to a sample pH of less than 4.
PHYSICAL PROPERTIES
pH 3.39 s.u. 0.01 A4500·H B 08/06/10 13:13/1r
Solids, Total Dissolved TDS@ 180 C 79900 mglL D 170 A2540C 08/09/10 12:16/1r
METALS -DISSOLVED
Arsenic 23500 ug/L 5.0 E200.8 08/10/10 03:191 sml
Beryllium 267 ug/L D 1.3 E200.8 08/10/1003:191 sml
Cadmium 6370 ug/L D 0.72 E200.8 08/10/1003:191 sml
Chromium 2510 ug/L 25 E200.8 08/10/1003:191 sml
Cobalt 48200 ug/L 10 E200.B 08110/1003:191 sml
Copper 148000 ug/L 10 E200.B OB/l0/10 03:191 sml
Iron 2720000 uglL D 150 E200.7 OB/l 011 0 15:37 I cp
Lead 586 ug/L 1.5 E200.B OB/10/10 03:191 sml
Manganese 144000 ug/L 10 E200.B 08/10/10 03:191 sml
Mercury ND ug/L 0 4.0 E200.B 08/10/10 03:191 sml
Molybdenum 4630 ug/L 10 E200.B OB/10/10 03:191 sml
Nickel 126000 ug/L 0 35 E2oo.B OB/10/10 03:191 sml
Selenium 844 ug/L 0 12 E200.B 08/10/1003:191 sml
Silver NO ug/L 10 E200.8 08/10/10 03:191 sml
Thallium 470 uglL 0 0.58 E200.B 08/10/1003:191 sml
Tin ND uglL 100 E200.B OB/1 011 0 03:19 I sml
Uranium 30600 ug/L 0 0.72 E200.8 OB/10/10 03:191 sml
Vanadium 469000 ug/L 15 E200.B OB/1 011 0 03:191 sml
Zinc 652000 ug/L 0 150 E200.7 OB/10/10 15:371 cp
RADIONUCLIDES • DISSOLVED
Gross Alpha minus Rn & U 1000 pCiIL E900.1 OB/25/10 02:11 I plj
Gross Alpha minus Rn & U Precision (:1:) 24.6 pCi/L E900.1 08/25/1002:111 plj
Gross Alpha minus Rn & U MOC 2.B pCi/L E900.1 OB/25/10 02:11 I plj
Report RL • Analyte reporting limit. MCL • Maximum contaminant level.
DefinitIons: OCL • Quality control limit. NO • Not detected allhe reporting limit.
MDC • Minimum detectable concentration o . RL increased due to sample matrix.
Page 6 of 39
www.energylab.com
AIlMtfIaI &aiIIIKf SIa 1m
Helena, NT 177-472-8111 • Bllllnls, NT 1G1-735-4411 • Casper, WY 811-235-1515
Gillette, WY 111-188-7175 • Rapid City, SD 111-172-1225 • CoIleea Station, 1lI81 .... 1D-2211
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
Annual Tailings Sample
C 10080205-002
Client Sample 10: Cell 2 Slimes
Analyses
DATA QUAUTV
AlC Balance (± 5)
Anions
Cations
Solids, Total Dissolved Calculated
TDS Balance (0.80 -1.20)
VOLAT1LE 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
Definition.:
RL -Analyte reporting limit.
QCL -Quality control limit.
Result
-2.34
1430
1370
77400
1.03
460
NO
NO
15
2.3
83
NO
17
2.6
2.2
100
97.0
100
92.0
Units
%
meqlL
meqlL
mgll
uglL
uglL
uglL
uglL
uglL
ugll
uglL
uglL
uglL
uglL
%REC
%REC
%REC
%REC
Qualifiers RL
20
1.0
1.0
1.0
1.0
20
1.0
1.0
1.0
1.0
80-120
70-130
80-120
80-120
Report Date: 09/09/10
Collection Date: 08/03/1010:50
DateRecelved: 08/05/10
Matrix: Aqueous
MCU
QCL Method Analysis Date I By
Calculation 08/31/1013:471 kbh
Calculation 08/31/1013:471 kbh
Calculation 08/31/1013:471 kbh
Calculation 08/31/1013:471 kbh
Calculation 08/31/1013:471 kbh
SW8260B 08/09/1016:181 jlr
SW8260B 08/09/1016:181 jlr
SW8260B 08/09/1016:181 jlr
SW8260B 08/09/1016:181 jlr
SW8260B 08/09/1016:181 jlr
SW8260B 08/09/1016:181 jlr
SW8260B 08/09/10 16:18 1 jlr
SW8260B 08/09/1016:181 jlr
SW8260B 08/09/1016:181 jlr
SW8260B 08/09/1016:181 jlr
SW8260B 08/09/10 16:181 jlr
SW8260B 08/09/1016:181 jlr
SW8260B 08/09/1016:181 jlr
SW8260B 08/09/1016:181 jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 7 of 39
A
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City. vr
84115
[phone]
Toll Free [phone]
Fax [phone]
email: [e-mail]
Kyle F. Gross
Laboratory Director
lose Rocha
QAOfficer
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-002B
Client Sample ID: Cell 2 Slimes
Collection Date: 8/312010 1050h
Received Date: 8/5/2010 1000h
Method Used: SW8270D
Analytical Results
Units: jlg/L
Dilution Factor: 1
Compound
1,2,4-Trichlorobenzene
1,2-Dichlorobenzene
1,3-Di chi orobenzene
1,4-Dichlorobenzene
1-Methylnaphthalene
2,4,5-Trich lorophenol
2,4,6-Trich lorophenol
2,4-Dichlorophenol
2,4-Dimethylphenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chloronaphthalene
2-Chlorophenol
2-Methylnaphthalene
2-MethyJphenol
2-Nitrophenol
3&4-Methylphenol
3,3' -Dichlorobenzidine
4,6-Dinitro-2-methylphenol
4-Bromophenyl phenyl ether
4-Chloro-3-methylphenol
4-Chlorophenyl phenyl ether
4-Nitrophenol
Acenaphthene
Acenaph thylene
Anthracene
Azobenzene
Benz(a)anthracene
Contact: Jo Ann Tischler
Analyzed: 8/9/2010 2010h
Extracted: 8/9/2010 0905h
SVOAs List by GC/MS Method 8270D/3510C
CAS Reporting Analytical
Number Limit Result Qual
120-82-1 10.0 < 10.0
95-50-1 10.0 < 10.0
541-73-1 10.0 < 10.0
106-46-7 10.0 < 10.0
90-12-0 10.0 < 10.0
'--
95-95-4 10.0 < 10.0
88-06-2 10.0 < 10.0
120-83-2 10.0 < 10.0
105-67-9 10.0 < 10.0
51-28-5 20.0 <20.0
121-14-2 10.0 < 10.0
606-20-2 10.0 < 10.0
91-58-7 10.0 < 10.0
95-57-8 10.0 < 10.0
91-57-6 10.0 < 10.0
95-48-7 10.0 < 10.0
88-75-5 10.0 < 10.0
10.0 < 10.0
91-94-1 10.0 < 10.0
534-52-1 10.0 < 10.0
101-55-3 10.0 < 10.0
59-50-7 10.0 < 10.0
7005-72-3 10.0 < 10.0
100-02-7 10.0 < 10.0
83-32-9 10.0 < 10.0
208-96-8 10.0 < 10.0
120-12-7 10.0 < 10.0
103-33-3 10.0 < 10.0
56-55-3 10.0 < 10.0
Report Date: 8/17/20 I 0 Page 8 of70
All analyses applicable 10 the CWA. SDWA. and RCRA are performed In accordance to NELAC protocols. Pertlnenlsampltng Information .. Iocaled on !he altached COCo This report Is provided fortheexclllSlve .... of the
addressee. Prlvlleg .. of .ubsequent use of the name of !hIs company or any member of II •• Lalr. or reproduction ofthls report In connection with the advertisement. promotion or sale of any product or process. or In connection
with !he re-publtc.tloo of Ihls report for any purpose o!her than for the .ddr ..... will be granled only on contact. 1bls company accep" no respumlblllly except for the due performance of Inspectloo and/or analy.l, In gond faith
and according 10 lhe rul .. of the trade and of science.
A
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
QAOfficer
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-002B
Client Sample ID: Cell 2 Slimes
Collection Date: 8/3/2010 1050h
Received Date: 8/5/20101000h
Method Used: SW8270D
Analytical Results
Units: IlglL
Dilution Factor: 1
Compound
Benzidine
Benzo(a)pyrene
Benzo(b )fluoranthene
Benzo(g,h, i )peryl ene
Benzo(k)f1uoranthene
Bis(2-chloroethoxy)methane
Bis(2-chloroethyl) ether
Bis(2-chloroisopropyl) ether
Bis(2-ethylhexyl) phthalate
Butyl benzyl phthalate
Chrysene
Di-n-butyl phthalate
Di-n-octyl phthalate
Dibenz(a,h)anthracene
Diethyl phthalate
Dimethyl phthalate
Fluoranthene
Fluorene
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyciopentadiene
Hexachloroethane
Indeno( 1 ,2,3-cd)pyrene
Isophorone
N-Nitrosodimethylamine
N-Nitrosodiphenylamine
N-Nitrosodi-n-propylamine
Naphthalene
Nitrobenzene
Contact: Jo Ann Tischler
Analyzed: 8/9/2010 2010h
Extracted: 8/9/2010 0905h
SVOAs List by GC/MS Method 8270D/3510C
CAS Reporting Analytical
Number Limit Result. Qual
92-87-5 10.0 < 10.0
50-32-8 10.0 < 10.0
205-99-2 10.0 < 10.0
191-24-2 10.0 < 10.0
207-08-9 10.0 < 10.0
111-91-1 10.0 < 10.0
111-44-4 10.0 < 10.0
108-60-1 10.0 < 10.0
117-81-7 10.0 < 10.0
85-68-7 10.0 < 10.0
218-01-9 10.0 < 10.0
84-74-2 10.0 < 10.0
117-84-0 10.0 < 10.0
53-70-3 10.0 < 10.0
84-66-2 10.0 < 10.0
131-11-3 10.0 < 10.0
206-44-0 10.0 < 10.0
86-73-7 10.0 < 10.0
118-74-1 10.0 < 10.0
87-68-3 10.0 < 10.0
77-47-4 10.0 < 10.0
67-72-1 10.0 < 10.0
193-39-5 10.0 < 10.0
78-59-1 10.0 < 10.0
62-75-9 10.0 < 10.0
86-30-6 10.0 < 10.0
621-64-7 10.0 < 10.0
91-20-3 10.0 < 10.0
98-95-3 10.0 < 10.0
Report Date: 8/17/2010 Page 9 of70
AU analyses applicable to the CWA. SDWA. and RCRA are perfonned In accordance to NELAC protocol •. Pertinent sampling Infonnatlon Is located on the a"ached COCo ThIs report Is provided for the e.clu.tve use ofthe
addressee. Privileges ofs"l"""I .... ut uS<! of II .. nan", of thlscompany or any member of lIS .taff, orreproductlon ofthts report In connection with the advertisement, promotion or sale of any product or process, or In connection
with the "'-publlcalloo of.hls n)port ror lny pU'l""" od~, than for the addressee wUl be granted only on cootact. This compony accepts no responsibility except for the due perfonnanco of Inspection and/or analysis In good faith
and according to lhe rul .. of .h .. t,.<It) ."d of sci."..,.
A ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-002B
Client Sample ID: Cell 2 Slimes
Collection Date: 8/3/2010 1050h
Received Date:
Method Used:
8/512010 l000h
SW8270D
Contact: Jo Ann Tischler
Analyzed: 8/9/2010 2010h
Extracted: 8/912010 0905h
AMERICAN
WEST
ANALYTICAL
LABORATORIES
Analytical Results SVOAs List by GC/MS Method 82700/3510C
Units: IlgiL
Dilution Factor: 1 CAS Reporting Analytical 463 West 3600 South
Salt Lake City. UT
84115
Compound Number Limit Result Qual
Pentachlorophenol
Phenanthrene
Phenol
Pyrene
[phone] Pyridine
Toll Free [phone] Surr: 2,4,6-Tribromophenol
Fax [phone] Surr: 2-Fluorobiphenyl
email: [e-mail] Surr: 2-Fluorophenol
Surr: Nitrobenzene-d5
Kyle F. Gross
Laboratory Director
Surr: Phenol-d6
Surr: Terphenyl-dl4
87-86-5
85-01-8
108-95-2
129-00-0
110-86-1
118-79-6
321-60-8
367-12-4
4165-60-0
13127-88-3
1118-51-0
Library search required for 4-cilloroplrel/01. /01/ clrromatogram searclr I/ot detected.
10.0
10.0
10.0
10.0
10.0
14-159
10-124
10-106
10-180
10-122
10-199
I _ Matrix spike recovery il/dicates matrix illtetjerellce. The method is ill cOl/trol as il/dicated by the LeS.
< 10.0
< 10.0
10.7
< 10.0
< 10.0
72.S
37.0
36.7
0.825
40.2
97.1
Jose Rocha
QA Officer
S -SlIrrogate recoveries olltside the cOl/trollimits. RepreparatiO// alld reanalysis al/d/or MS samples yielded similar results illdicatillg
matrix il/te/jerel/ce.
s
Reporl Dale: 811712010 Page 10 of70
All analyse. applicable to the CWA, SDWA, and RCRA are perfonned In accordance to NELAC protocols. Penlnent sampling Infonnatlon Is localed on the anached COCo This report I. provided for the exclusive use of 'he
addrewee. Privileges or subsequenl use of the name of this company or any member of Us SlatT, or reproducLion or this report In connection with the advertisement. promotion or sale or any producl or process, or In connection
with lhe re-publlcatlon of Ihls "'port for any purpose other than for the addressee will be granted only on contact. This company accepts no responsibility except for the due perfonnance of Inspection and/or analYSiS In good fallh
and accomlng to the rul .. of the Inde and of science.
A
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
QAOfficer
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-002A
Client Sample ID: Cell 2 Slimes
Collection Date: 8/3/2010 1050h
Received Date:
Method Used:
Analytical Results
Units: J.1g1L
Dilution Factor: 10
Compound
Tetrah ydrofuran
8/5/2010 l000h
SW8260C
Surr: 1,2-Dichloroethane-d4
Surr: 4-Bromofluorobenzene
Surr: Dibromofluoromethane
Surr: Toluene-d8
The reporlillg limils were raised dlle 10 sample malrix itllerjerellces.
Contact: Jo Ann Tischler
Analyzed: 8/5/20102031h
VOAs by GC/MS Method 8260CIS030C
CAS Reporting Analytical
Number Limit Result Qual
109-99-9 10.0 < 10.0
17060-07-0 77-144 104
460-00-4 80-123 103
1868-53-7 80-124 97.9
2037-26-5 80-125 101
Report Date: 8117/2010 Page 27 of70
All analyses applicable to the CWA. SDWA. and RCRA are perfonned In accordance to NELAC protocols. Penlnent sampling Infoooalion Is localed on the attached COCo This "'PM Is provided forthe exclusive use of the
add ......... Privileges of subsequent use of.he name of thlscompany or any member of lIS staff. or reproduc.lon of .hl. report In connecllon wllh the advertisement. promollon or sale of any product or process. or In connecllon
with .he "'-publlcallon of this report fonny purpooe other than for the addressee wUl be granted only on contac •. This company accepts no responsibility except for the due perfoooance of InspecUon andlor analysis In good fallh
and according to the rules of the trade and of science.
EI\ERGY
1.~'r:(.l1 {/\1 Gf'P_<~
www.energylab.com
~~Sitcl llSt
Helena, MTI77-47Z-D111 • Billings, MT 1G1-735-4481 · Casper, W'( 888-235-1515
Gillette, WY 8&&-188-7175 • Rapid City, SD 188-172-1225 • Collaga Station, TX 888-&10-221.
LABORATORY ANALYTICAL REPORT
Client:
Project:
LabID:
Denison Mines USA Corp
Annual Tailings Sample
C10080205-003
Client Sample ID: Cell 2 LDS
Analyses
MAJOR IONS
Carbonate as C03
Bicarbonate as HC03
Calcium
Chloride
Fluoride
Magnesium
Nitrogen, Ammonia as N
Nitrogen, Ammonia as N
Nitrogen, Nitrate+Nitrile 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
RADIONUCUDES -DISSOLVED
Gross Alpha minus Rn & U
Gross Alpha minus Rn & U Precision (±)
Gross Alpha minus Rn & U MOC
Report
DeflnHlons:
RL -Analyte reporting limit.
OCL -Quality conlrollimit.
Result
ND
324
615
1360
0.40
454
0.7
0.71
2.2
13.0
318
1780
7.36
5310
ND
ND
1.10
ND
ND
12
37
ND
395
0.52
13
ND
9.4
ND
ND
ND
79.6
ND
78
7.3
2.6
2.8
Units
mglL
mglL
mglL
mglL
mglL
mglL
mglL
mglL
mglL
mglL
mglL
mglL
S.u.
mglL
ug/L
ugiL
ugiL
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ugiL
ugiL
ug/L
ugiL
ugiL
ugiL
ugiL
ugiL
pCi/L
pCi/L
pCi/L
MDC -Minimum detectable concentration
Report Date: 09/09/10
Collection Date: 08/03/10 12:50
DateRecelved: 08/05/10
Matrix: Aqueous
MCU
Qualifiers RL QCL Method Analysis Date I By
D
D
o
o
D
D
A2320 B 08/1211012:491 ja
A2320 B 08/12110 12:49 I ja
1.1 E200.7 08/10/1015:411 cp
A4500-CI B 08/24/1010:07/1r
0.10 A4500-FC 08/11/1015:031 Ja
0.50 E200.7 08/10/1015:411 cp
0.2 A4500-NH3 G 08/24/10 16:16/1jl
0.05 A4500-NH3 G 08/24/10 16:44/1jl
0.2 E353.2 08/12110 21 :46 Iljl
0.50 E200.7 08/10/1015:411 cp
1.4 E200.7 08/10/1015:41/cp
50 A4500-S04 E 08/25/10 14:49 Ilr
0.01 A4500-H B 08/06/10 13:1811r
17 A2540 C 08/09/10 12:16/1r
5.0 E200.8 08/10/1003:251 sml
0.50 E200.B OB/l0/l0 03:251 sml
0.50 E200.B OB/l0/l0 03:251 sml
25 E200.B 08/10/1003:251 sml
10 E200.B 08/10/10 03:25 I sml
10 E200.B OB/l 011 0 03:25 I sml
30 E200.7 08/10/1015:411 cp
1.0 E200.B 08/10/1003:251 sml
10 E200.8 OB/l0/l0 03:251 sml
0.50 E200.8 08/10/10 03:25 I sml
10 E200.8 08/10/10 03:25 I sml
20 E200.8 08/10/1003:251 sml
5.0 E200.B 08/10/10 03:25 I sml
10 E200.B 08/10/1003:251 sml
0.50 E200.B 08/10/1003:251 sml
100 E200.8 OB/l0/l0 03:251 sml
0.30 E200.8 08/10/10 03:251 sml
15 E200.8 OB/l0/l0 03:251 sml
10 E200.B OB/l 011 0 03:25 I sml
E900.1 OB/25/10 02:111 plj
E900.1 OB/25/10 02:11 I plj
E900.1 OB/25/10 02:111 plj
MCL -Maximum contaminant level.
ND -Not detected at the reporting limi!.
D -RL increased due to sample matrix.
Page 8 of 39
EI\ERGY
. l\, )(. r <f' r (,f 'I~-'
www.energylab.com
AIIIIIfJaI~--'81
Helena, MT 177-412-G711 • BIllings, MT 111-731-44'8 • Casper, WY 811-235-1515
Gillatte, WY 111-111·7175 • Rapid CItr, SD 818-172·1225 • Collage Station, IX 1.1-I11t-221 •
LABORATORY ANAL VTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
Annual Tailings Sample
C 10080205-003
Client Sample 10: Cell 2 LOS
Analyses
DATA QUAUTV
AlC Balance (± 5)
Anions
Cations
Solids, Total Dissolved Calculated
TOS Balance (O.SO -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-dS
Report
Definitions:
RL -Analyte reporting limit.
OCL -Quality control limit.
Result
0.S79
SO.9
S2.3
4720
1.13
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
97.0
96.0
9S.0
S6.0
Units
%
meqlL
meqlL
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
Quallfle,s RL
20
1.0
1.0
1.0
1.0
20
1.0
1.0
1.0
1.0
SO-120
70-130
SO-120
SO-120
Report Date: 09/09/10
Collection Date: 08/03/10 12:50
DateRecelved: 08/05/10
Matrix: Aqueous
MCLI
QCL Method Analysis Date 1 By
Calculation OS/26/10 07:291 kbh
Calculation OS/26/10 07:291 kbh
Calculation OS/26/10 07:291 kbh
Calculation OS/26/10 07:29 1 kbh
Calculation OS/26/10 07:291 kbh
SWS260B OS/09/10 19:511 jlr
SWS260B OS/09/10 19:511 jlr
SWS260B 08/09/1019:511 jlr
SWS260B OS/09/10 19:511 jlr
SWS260B OS/09/10 19:511 jlr
SWS260B OS/09/10 19:51 1 jlr
SWS260B 08/09/10 19:51 1 jlr
SWS260B OS/09/10 19:511 jlr
SWS260B OS/09/10 19:51 1 jlr
SWS260B OS/09/10 19:511 jlr
SWS260B OS/09/10 19:511 jlr
SWS260B OS/09/10 19:511 jlr
SWS260B OS/09/10 19:51 1 jlr
SWS260B OS/09/10 19:511 jlr
MCL -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 9 of 39
A ORGANIC ANALYTICAL REPORT
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City. UT
84115
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-003B
Client Sample ID: Cell 2 LDS
Collection Date: 8/312010 12S0h
Received Date: 8/5/2010 l000h
Method Used: SW8270D
Analytical Results
Units: Ilg/L
Dilution Factor: 1
Compound
1,2,4-Trich lorobenzene
1,2-Dichlorobenzene
1,3-Dichlorobenzene
l,4-Dichlorobenzene
[phone] I-Methylnaphthalene
Toll Free [phone] 2,4,5-Trichlorophenol
Fax [phone],4,6-Trichlorophenol
email: [e-mail] 2,4-Dichlorophenol
2,4-Dimethylphenol
Kyle F. Gross
Laboratory Director
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chloronaphthalene Jose Rocha 2-Chlorophenol
QA Officer 2-Methylnaphthalene
2-Methylphenol
2-Nitrophenol
3&4-Methylphenol
3,3' -Dichlorobenzidine
4,6-Dinitro-2-methylphenol
4-Bromophenyl phenyl ether
4-Chloro-3-methylphenol
4-Chlorophenyl phenyl ether
4-Nitrophenol
Acenaphthene
Acenaphthylene
Anthracene
Azobenzene
Benz(a)anthracene
Contact: 10 Ann Tischler
Analyzed: 8/9/2010 2131h
Extracted: 8/9/2010 0905h
SVOAs List by GCIMS Method 8270D/351OC
CAS Reporting Analytical
Number Limit Result Qual
120-82-1 10.0 < 10.0
95-50-1 10.0 < 10.0
541-73-1 10.0 < 10.0
106-46-7 10.0 < 10.0
90-12-0 10.0 < 10.0
95-95-4 10.0 < 10.0
88-06-2 10.0 < 10.0
120-83-2 10.0 < 10.0
105-67-9 10.0 < 10.0
51-28-5 20.0 <20.0
121-14-2 10.0 < 10.0
606-20-2 10.0 < 10.0
91-58-7 10.0 < 10.0
95-57-8 10.0 < 10.0
91-57-6 10.0 < 10.0
95-48-7 10.0 < 10.0
88-75-5 10.0 < 10.0
10.0 < 10.0
91-94-1 10.0 <: 10.0
534-52-1 10.0 < 10.0
101-55-3 10.0 < 10.0
59-50-7 10.0 < 10.0
7005-72-3 10.0 < 10.0
100-02-7 10.0 < 10.0
83-32-9 10.0 < 10.0
208-96-8 10.0 < 10.0
120-12-7 10.0 < 10.0
103-33-3 10.0 < 10.0
56-55-3 10.0 < 10.0
Report Date: 8117/2010 Page 11 of70
All analyses applicable 10 the CWA. SDWA. and RCRA are perfonned In accordance 10 NELAC prolocols. Penlnenlsampllng Infonnallon Is localed on the auadted COCo Thl. repon Is provided ror the exclusive use oflhe
addressee. Privileges of ... bsequenl use oflhe name of thl. company or any mem",", of lIS slafT. or reproducllon oflhls report In coonectton with the advertlsemenl. promotion or sale of any produclllI' proc .... or In connecllon
with the re·publlcallon of this reporl for any purpose other than for the addressee wUi be granled only on conlad. This company accepts no responslblilly excepl for the due performance of Inspecllon andl ... analysis In good faith
and according [0 lhe rules or the Irl!de and of science.
A
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
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-003B
Client Sample ID: Cell 2 LDS
Collection Date: 8/3/2010 1250h
Received Date:
Metbod Used:
Analytical Results
Units: Ilg/L
Dilution Factor: 1
Compound
Benzidine
8/5/2010 l000h
SW8270D
Benzo(a)pyrene
Benzo(b)fluoranthene
Benzo(g,h, i )perylene
Benzo(k)fluoranthene
Bis(2-chloroethoxy)methane
Bis(2-chloroethyl) ether
Bis(2-chloroisopropyl) ether
Bis(2-ethylhexyl) phthalate
Butyl benzyl phthalate
Chrysene
Di-n-butyl phthalate
Di-n-octyl phthalate
Di benz( a.h )an thracene
Diethyl phthalate
Dimethyl phthalate
Fluoranthene
Fluorene
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclopentadiene
Hexachloroethane
Indeno(l,2,3-cd)pyrene
Isophorvne
N-Nitrosodimethylamine
N-Nitrosodiphenylamine
N-Nitrosodi-n-propylamine
Naphthalene
Nitrobenzene
Contact: Jo Ann Tischler
Analyzed: 8/9/2010 2131 h
Extracted: 8/912010 0905h
SVOAs List by GCIMS Method 8270D/3510C
CAS Reporting Analytical
Number Limit Result Qual
92-87-5 10.0 < 10.0
50-32-8 10.0 < 10.0
205-99-2 10.0 < 10.0
191-24-2 10.0 < 10.0
207-08-9 10.0 < 10.0
111-91-1 10.0 < 10.0
111-44-4 10.0 < 10.0
108-60-1 10.0 < 10.0
117-81-7 10.0 < 10.0
85-68-7 10.0 < 10.0
218-01-9 10.0 < 10.0
84-74-2 10.0 < 10.0
117-84-0 10.0 < 10.0
53-70-3 10.0 < 10.0
84-66-2 10.0 < 10.0
131-11-3 10.0 < 10.0
206-44-0 10.0 < 10.0
86-73-7 10.0 < 10.0
118-74-1 10.0 < 10.0
87-68-3 10.0 < 10.0
77-47-4 10.0 < 10.0
67-72-1 10.0 < 10.0
193-39-5 10.0 < 10.0
78-59-1 10.0 < 10.0
62-75-9 10.0 < 10.0
86-30-6 10.0 < 10.0
621-64-7 10.0 < 10.0
91-20-3 10.0 < 10.0
98-95-3 10.0 < 10.0
Report Date: 8117/20 I 0 Page 12 af70
All analyses applicable lolhe CWA. SDWA. and RCRA are pe<fonned In accordance 10 NELAC prolocols. PertlnenlSampUng tnfonnallon Is localed on the .lIached COCo ThIs report Is proVided for lhe exclusive .... of Ihe
addressee. Privileges of subsequenl use oflhe name of Ihls company or any member of lIS SlafT. or reproduclton of Ihls report in connecllon wllh the advertisemenl. promotion orsale of any product or process. or In conneclton
wllh Ihe re-publlcatlon of this report for any purpose other than for !he addressee will be gnmled only on conlact. this company acceplS no responsibility excepl for !he due perfonnance of InspecUon and/or analysis In 800d fallh
and according 10 lbe rules of the IrMe and of science.
A ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-003B
Client Sample ID: Cell 2 LOS
Collection Date: 8/3/2010 1250h
Received Date:
Method Used:
8/5/2010 l000h
SW8270D
Contact: Jo Ann Tischler
Analyzed: 8/9/2010 2131h
Extracted: 8/912010 0905h
AMERICAN
WEST
ANALYTICAL
LABORATORIES
Analytical Results SVOAs List by GC/MS Method 8270D/3510C
463 West 3600 South
Salt Lake City. VT
84115
Units: Ilg/L
Dilution Factor: 1
Compound
Pentachlorophenol
Phenanthrene
Phenol
Pyrene
[phone] Pyridine
Toll Free [phone] Surr: 2,4,6-Tribromophenol
Fax [phone] Surr: 2-Fluorobiphenyl
email: [e-mail] Surr: 2-Fluorophenol
Surr: Nitrobenzene-d5
Kyle F. Gross
Laboratory Director
Surr: Phenol-d6
Surr: Terphenyl-dl4
CAS
Number
87-86-5
85-01-8
108-95-2
129-00-0
110-86-1
118-79-6
321-60-8
367-12-4
4165-60-0
13127-88-3
1718-51-0
Library search required jor 4-cltlorophe/lol. JOII chromatogram search /lot detected.
Jose Rocha
QAOfficer
Reporting Analytical
Limit Result Qual
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
14-159 66.1
10-124 31.9
10-106 18.4
10-180 30.4
10-122 15.6
10-199 104
Report Date: 8/1 7/20 I 0 Page 13 of70
All analyses applicable to the CWA. SDWA, and RCRA are perfonned In accordance to NELAC protocols. Pertinent sampling InfonnaUon is located on the attached COCo Thl. report I. proVided for the exclu.lve use of the
addressee. Privileges of subsequent use of the name of this company or any member of Its staff. or reproduction ofthl. report In connection wlth the advertisement, promotion or sale of any JIIllduct or process, or In connection
wlth the re-publlc.Uoo of this report forany purpose other than for the addressee will be granted only 00 contact. This company accepts no responsibility except for the due performance of In.pectlon and/or analysis In good faUh
and according to the rules of the trade and of science.
A
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
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-003A
Client Sample ID: Cell 2 LDS
Collection Date: 8/3/2010 1250h
Received Date:
Method Used:
Analytical Results
Units: JlglL
Dilution Factor: 1
Compound
T etrah ydrofuran
8/5/2010 l000h
SW8260C
Surr: 1 ,2-Dich loroethane-d4
Surr: 4-Bromofluorobenzene
Surr: Dibromofluoromethane
Surr: Toluene-d8
Contact: Jo Ann Tischler
Analyzed: 8/512010 2129h
VOAs by GCIMS Method 8260CI5030C
CAS Reporting Analytical
Number Limit Result Qual
109-99-9 1.00 6.13
17060-07-0 77-144 103
460-00-4 80-123 103
1868-53-7 80-124 97.4
2037-26-5 80-125 101
I
Report Date: 8117/20 to Page 28 of 70
Att .n.lY"" .ppllcable 10 lhe CWA. SDWA •• nd RCRA .re .,.,.formed In .ccord.nce 10 NELAC prolocols. PenJnenl sampttng Inform.llon Is localed on the .Uached COCo This report Is provided forthe excluslvo ... of Ihe
oddressee. Privileges of subsequent .... of lhe name of Ihls company or any member of lis st.ff, or reproducllon of this report In connecllon with Ihe advertisement, promotion or sale of .ny product or process, or In connecllon
with the ,..publlcallon of this report for any purpose other than for the .ddr ..... will be granled only on conlact. This company accepls no responslbttlty except forthe due performance of Inspection .ndtor onalysl.ln good faith
and according 10 the rutes of the trade and of science.
EN:RGY 1., .... r2C·I~l\lrd~lr <-
www.energy!ab.com
'-'t/JaI baIIIcf SiIct 'IU
Helena, NT .77-472~711 • Billings, NT BIII·735-44 ••• Casper, WY .. 1-235-1515
Gillette, W'f •• &-111·1171 • Rapid CItr, SD •• 8-172·1225 • Coliale Station, TX .. 1-11102211
LABORATORY ANALYTICAL REPORT
Client: Denison Mines USA Corp Report Date: 09/09/10
Project: Annual Tailings Sample Collection Date: 08/03/1014:50
Lab ID: C 10080205·004 DateRecelved: 08/05/10
Client Sample 10: Cell 3 Matrix: Aqueous
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date 1 By
MAJOR IONS
Acidity, Total as CaC03 18000 mglL 5 A2310 B 08/16/10 10:23 1 Ja
Carbonate as 003 NO mglL A2320 B 08/16/10 09:30 1 ja
Bicarbonate as H003 NO mglL A2320 B 08/16/10 09:30 1 ja
Calcium 560 mglL 0 22 E200.7 08/27/1016:381 cp
Chloride 3470 mglL A4500-CIB 08/24/10 10:09 /lr
Fluoride 54.8 mglL D 1.0 A4500-FC 08/17/1011 :471 Ja
Magnesium 2500 mglL D 5.1 E200.7 08/27/1016:381 cp
Nitrogen, Ammonia as N 2650 mglL D 100 A4500-NH3G 08/24/10 16:46/1jl
Nitrogen, Nitrate+Nitrite as N 26 mglL D 2 E353.2 08/12110 21 :49 1 Ijl
Potassium 782 mglL D 1.9 E200.7 08/27/1016:381 cp
Sodium 5620 mglL 0 28 E200.7 08/27/10 16:38 1 cp
Sulfate 40400 mglL 0 1000 A4S00-S04 E 08/31/10 13:15/1jl
-Acidity reported for informational purposes due to a sample pH of less than 4.
PHYSICAL PROPERTIES
pH 2.18 S.u. 0.01 A4500-H B 08/06/10 13:19 /lr
Solids, Total Dissolved TDS @ 180 C 56200 mglL D 150 A2540C 08/09/10 12:16/1r
METALS -DISSOLVED
Arsenic 52900 ug/L 5.0 E200.8 08/10/10 03:321 sml
Beryllium 206 ug/L 0 1.3 E200.8 08/10/1003:321 sml
Cadmium 1960 ug/L D 0.72 E200.8 08/10/1003:321 sml
Chromium 3360 ug/L 25 E200.8 08/10/1003:321 sml
Cobalt 13000 uglL 10 E200.8 08/10/1003:321 sml
Copper 89000 ug/L 10 E200.8 08/10/1003:321 sml
Iron 1460000 ug/L 0 150 E200.7 08/10/1015:451 cp
Lead 17200 ug/L 1.5 E200.8 08/1011 0 03:32 1 sml
Manganese 101000 ug/L 10 E200.8 08/10/1003:321 sml
Mercury ND ug/L 0 4.0 E200.8 08/10/1003:321 sml
Molybdenum 21300 uglL 10 E200.8 08/10/1003:32/8ml
Nickel 23800 ug/L 0 35 E200.8 08/10/1003:32/8ml
Selenium 3080 uglL D 12 E200.8 08/10/1003:321 sml
Silver 101 uglL 10 E200.8 08/10/10 03:32 1 8ml
Thallium 190 ug/L D 0.58 E200.8 08/10/10 03:32 1 sml
Tin 155 ug/L 100 E2oo.8 08/10/10 03:32 1 sml
Uranium 180000 ug/L 0 0.72 E2oo.8 08/10/10 03:32 1 sml
Vanadium 692000 ug/L 15 E200.8 08/10/1003:321 sml
Zinc 134000 uglL 14 E200.8 08/10/1003:321 sml
RADIONUCLIDES -DISSOLVED
Gross Alpha minus Rn & U 4030 pCilL E900.1 08/25/10 02:11 1 plj
Gross Alpha minus An & U Precision (i) 48.7 pCi/L E900.1 08/25/1002:111 plj
Gross Alpha minus An & U MDC 2.8 pCi/L E900.1 08/25/1002:111 plj
Report AL -Analyte reporting limit. MCL -Maximum contaminant level.
Definitions: OCL -Quality control limit. NO • Not detected at the reporting limit.
MDC • Minimum detectable concentration D -RL increased due to sample matrix.
Page 10 of 39
EN:RGY Helena,lIT 177 ... 72-0711 -Bllllnas,1IT 111-715-4411 -Casper, WY .... 23'-1515
• \L C'I./~I ()I II r:.· Glllttte, WY .'1-111-7115 -Rapid City, SD ""112-1225 -CoIlaae Station, TX ..... 11-2211
LABORATORY ANAL YTleAl REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
Annual Tailings Sample
C 10080205-004
Client Sample 10: Cell 3
Analyses Result
DATA QUAUTY
NC Balance (± 5) 5.17
Anions 944
cations 1050
Solids, Total Dissolved Calculated 53500
TDS Balance (0.80 -1.20) 1.05
-The Anion I Cation balance was confirmed by re-analysis.
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.
37
NO
NO
2.6
1.8
NO
NO
2.1
NO
NO
98.0
97.0
94.0
88.0
Units
%
meqlL
meqll
mglL
uglL
uglL
uglL
uglL
uglL
ug/L
uglL
uglL
ugll
uglL
%REC
%REC
%REC
%REC
Qualifier. Rl
20
1.0
1.0
1.0
1.0
20
1.0
1.0
1.0
1.0
80-120
70-130
80-120
80-120
Report Date: 09/09/10
Collection Date: 08/03/10 14:50
DaleRecelved: 08/05/10
Matrix: Aqueous
MCU
QCl Method Analysis Date I By
Calculation 08/31/10 13:48 I kbh
Calculation 08/31/10 13:48 I kbh
Calculation 08/31/10 13:48 I kbh
Calculation 08/31/1013:48 I kbh
Calculation 08/31/1013:48 I kbh
SW8260B 08/09/10 16:53 II'r
SW8260B 08/09/10 16:531 Ilr
SW8260B 08/09/1016:53 I jlr
SW8260B 08/09/10 16:53 Illr
SW8260B 08/09/10 16:53 I jlr
SW8260B 08/09/10 16:531 Ilr
SW8260B 08/09/10 16:53 Illr
SW8260B 08/09/10 16:53 I jlr
SW8260B 08/09/10 16:531 jlr
SW8260B 08/09/10 16:53 I jlr
SW8260B 08/09/10 16:53 I jlr
SW8260B 08/09/10 16:531 jlr
SW8260B 08/09/10 16:531 Ilr
SW8260B 08/09/10 16:53 Illr
MCL -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 11 of 39
A
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
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-004B
Client Sample ID: Cell 3
Collection Date: 8/3/2010 1450h
Received Date:
Method Used:
Analytical Results
Units: fl.g/L
Dilution Factor: 1
Compound
8/5/2010 1000h
SW8270D
1,2,4-Tri ch lorobenzene
1,2-Dichlorobenzene
1,3-Dichlorobenzene
1,4-Di chI orobenzen e
I-Methyl naphthalene
2,4,5-Trich lorophenol
2,4,6-Trich lorophenol
2,4-Dichlorophenol
2,4-Dimethylphenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chloronaphthalene
2-Chlorophenol
2-Methylnaphthalene
2-Methylphenol
2-Nitrophenol
3&4-Methylphenol
3,3 '-Dichlorobenzidine
4,6-Dinitro-2-methylphenol
4-Bromophenyl phenyl ether
4-Chloro-3-methylphenol
4-Chlorophenyl phenyl ether
4-Nitrophenol
Acenaphthene
Acenaphthylene
Anthracene
Azobenzene
Benz( a)anthracene
Contact: Jo Ann Tischler
Analyzed: 8/912010 2158h
Extracted: 8/9/2010 0905h
SVOAs List by GelMS Method 8270D/351 OC
CAS Reporting Analytical
Number Limit Result Qual
120-82-1 10.0 < 10.0
95-50-1 10.0 < 10.0
541-73-1 10.0 < 10.0
106-46-7 10.0 < 10.0
90-12-0 10.0 < 10.0
95-95-4 10.0 < 10.0
88-06-2 10.0 < 10.0
120-83-2 10.0 < 10.0
105-67-9 10.0 < 10.0
51-28-5 20.0 <20.0
121-14-2 10.0 < 10.0
606-20-2 10.0 < 10.0
91-58-7 10.0 < 10.0
95-57-8 10.0 < 10.0
91-57-6 10.0 < 10.0
95-48-7 10.0 < 10.0
88-75-5 10.0 < 10.0
10.0 < 10.0
91-94-1 10.0 < 10.0
534-52-1 10.0 < 10.0
101-55-3 10.0 < 10.0
59-50-7 10.0 < 10.0
7005-72-3 10.0 < 10.0
100-02-7 10.0 < 10.0
83-32-9 10.0 < 10.0
208-96-8 10.0 < 10.0
120-12-7 10.0 < 10.0
103-33-3 10.0 < 10.0
56-55-3 10.0 < 10.0
Report Date: 8117/2010 Page 14 of70
All analyses applicable to tloe CWA. SDWA. and RCRA are perConned in accordance 10 NELAe prolocols. Pertlnenlsampling InConnalion Is located on the attached COCo this report Is provided Cor the exclusive use or Ihe
addressee. Privileges of subsequent use of the name of this company or any member of Its sraff, or reproduclloo or this report In connecUon with the advertisement, promol:lon or sa~e of any product or process, or In connection
with the .e-publlc.llon or this report Cor any purpose other than Cor the addressee will be granted only on conlaCI. this company accepl< no responslblllly except Cor the due perfonmance DC Inspectl'"' amilor analysis In good ralth
and according to the rules or the trade and DC scIence.
A
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
lose Rocha
QA Officer
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-004B
Client Sample ID: Cell 3
Collection Date: 8/312010 1450h
Received Date: 8/5/2010 l000h
Method Used: SW8270D
Analytical Results
Units: I-lg/L
Dilution Factor: 1
Compound
Benzidine
Benzo(a)pyrene
Benzo(b )fluoranthene
Benzo(g,h,i)perylene
Benzo(k)fluoranthene
Bis(2-chloroethoxy)methane
Bis(2-chloroethyl) ether
Bis(2-chloroisopropyl) ether
Bis(2-ethylhexyl) phthalate
Butyl benzyl phthalate
Chrysene
Di-n-butyl phthalate
Di-n-octyl phthalate
Dibenz(a,h)anthracene
Diethyl phthalate
Dimethyl phthalate
Fluoranthene
Fluorene
Hexach lorobenzene
Hexachlorobutadiene
Hexachlorocyc1opentadiene
Hexach loroethane
Indeno( 1 ,2,3-cd)pyrene
Isophorone
N-Nitrosodimethylamine
N-Nitrosodiphenylamine
N-Nitrosodi-n-propylamine
Naphthalene
Nitrobenzene
Contact: Jo Ann Tischler
Analyzed: 8/9/2010 2158h
Extracted: 8/9/2010 0905h
SVOAs List by GC/MS Method 8270D/3510C
CAS Reporting Analytical
Number Limit Result Qual
92-87-5 10.0 < 10.0
50-32-8 10.0 < 10.0
205-99-2 10.0 < 10.0
191-24-2 10.0 < 10.0
207-08-9 10.0 < 10.0
111-91-1 10.0 < 10.0
111-44-4 10.0 < 10.0
108-60-1 10.0 < 10.0
117-81-7 10.0 10.6
85-68-7 10.0 < 10.0
218-01-9 10.0 < 10.0
84-74-2 10.0 < 10.0
117-84-0 10.0 < 10.0
53-70-3 10.0 < 10.0
84-66-2 10.0 < 10.0
131-11-3 10.0 < 10.0
206-44-0 10.0 < 10.0
86-73-7 10.0 < 10.0
118-74-1 10.0 < 10.0
87-68-3 10.0 < 10.0
77-47-4 10.0 < 10.0
67-72-1 10.0 < 10.0
193-39-5 10.0 < 10.0
78-59-1 10.0 < 10.0
62-75-9 10.0 < 10.0
86-30-6 10.0 < 10.0
621-64-7 10.0 < 10.0
91-20-3 10.0 < 10.0
98-95-3 10.0 < 10.0
Report Date: 8117/20 I 0 Page 15 01'70
All analyses applicable to the CWA. SDWA. and RCRA are performed In accordance 10 NELAC prolocols. Pertlnenl sampling Infonnallon" localed on Ihe attached COC. ThIHeport Is provided for the exclusive use oflhe
addressee. Privileges of subsequent use of the name of this company or any member or Its staff. or reproduction of this report In connection with the advertisement, promotion or sale of any product 01' prot:eM, or In connecllon
with the re-publlcatlon of this report for any purpose other than for the addressee will be granted only on contact. This company accepls no resp<lllSlblllty except for the due perfonnance of InspecllOll andlor analysts In 800d fallh
and acrordlnglo lbe rules of the trade and of science.
A ORGANIC ANALYTICAL REPORT
Client: Denison Mines
Project: Annual Tailings
Lab Sample ID: 1008101-0048
Client Sample ID: Cell 3
Collection Date: 8/3/2010 l450h
Received Date:
Method Used:
8/5/20101000h
SW8270D
Contact: Jo Ann Tischler
Analyzed: 8/9/2010 2158h
Extracted: 8/9/2010 0905h
AMERICAN
WEST
ANALYTICAL
LABORATORIES
Analytical Results SVOAs List by GC/MS Method 8270D/351OC
463 West 3600 South
Salt Lake City. UT
84115
Units: Jlg/L
Dilution Factor: 1
Compound
Pentachlorophenol
Phenanthrene
Phenol
Pyrene
[phone] Pyridine
Toll Free [phone] Surr: 2,4,6-Tribromophenol
Fax [phone] SU[r: 2-Fluorobiphenyl
email: [e-mail] Surr: 2-Fluorophenol
Surr: Nitrobenzene-d5
Kyle F. Gross
Laboratory Director
Surr: Phenol-d6
Surr: Terphenyl-d14
CAS
Number
87-86-5
85-01-8
108-95-2
129-00-0
110-86-1
118-79-6
321-60-8
367-12-4
4165-60-0
13127-88-3
1718-51-0
LibrQ/Y search required for 4-chlorophel/ol. lOll chromatogram search IIOt detected.
Jose Rocha
QA Officer
Reporting Analytical
Limit Result Qual
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
14-159 16.7
10-124 26.1
10-106 17.0
10-180 12.8
10-122 12.6
10-199 92.2
Report Date: 8/17/2010 Page 16 of70
Allanalyseo applicable 10 the CWA, SDWA, and RCRA are perfonned In accordance [0 NELAC pro[ocol •. Pertinent sampling Inronn.tlon Is located on the attached COCo This report is provided ror the exclu.ive use orthe
add ........ Privileges or subsequenl use of [he name or this company or any member of its starr, or reproduction of this report in connection with the adverti ...... nt. promotion Of sale or any product or prot"', or In connection
with the re-publlcation or this report for Illy purpose other than for the addr ..... wUi he granted only on con[ac\. This company accepts no responslbllily except ror the due penonnance or Inspection and/or analysi! in good raith
and according to the rules or the trade and or science.
A
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
SaIt Lake City. UT
84115
[phone]
Toll Free [phone]
Fax [phone]
email: [e-mail]
Kyle F. Gross
Laboratory Director
Jose Rocha
QAOfficer
ORGANIC ANALYTICAL REPORT
Client: Denison Mines
Project: Annual Tailings
Lab Sample ID: 1008101-004A
Client Sample ID: Cell 3
Collection Date: 8/3/2010 1450h
Received Date:
Method Used:
Analytical Results
8/5/2010 1000h
SW8260C
Units: I!g/L
Dilution Factor: 10
Compound
Tetrahydrofuran
Surr: 1,2-Dichloroethane-d4
Surr: 4-Bromofluorobenzene
Surr: Dibromofl uorometh ane
Surr: Toluene-d8
The reportillg limits were raised dlle to sample matrix illteljerences.
Contact: Jo Ann Tischler
Analyzed: 8/5/2010 2148h
VOAs by GC/MS Method 8260C/S030C
CAS Reporting Analytical
Number Limit Result Qual
109-99-9 10.0 < 10.0
17060-07-0 77-144 103
460-00-4 80-123 105
1868-53-7 80-124 97.7
2037-26-5 80-125 100
Report Date: 8/17/20 I 0 Page 29 of70
AII.n.ly ..... ppllcable to the CWA. SDWA, and RCRA.re perfonned In .ccord.nre to NELAC protocols. Pertinent sampling Infonnatlon Is located on the attached COC. This report Is provided for the exclusive use oFthe
addressee. Privileges of subsequent use of the name of this company or any member of lis staff. orreproductlon of this report In connection wllh the advertisement, promotion or sale of any product or process. or In connection
wtth the re-publlcatlon of this report for any purpose otherthan for the addressee will be granted only on cont.ct. This company accepts no responsibility except for the due performance of inspection and/or analysis In good f.ith
and according to the rules of the trade and of science.
EN:RGY
I_r I J •• re/\ 1(:;1 )1-c
Halana, MT .77-.47Z-0711 • Bllllnls,1IT 101-735-44 •• • caspar, WY ... -235-1515
Gllletb, Wf .11-188-7175 • Rapid City, SD ... -172·1225 • CoIiBIB SlaUon, TX ..... lo.ZZ1. rmr
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
Annual Tailings Sample
C 1 0080205-005
Client Sample ID: Cell 4A
Analyses Reault
MAJOR IONS
Acidity, Total as CaC03 34500
Carbonate as C03 NO
Bicarbonate as HC03 NO
Calcium 598
Chloride 7350
Fluoride 21.6
Magnesium 4940
Nitrogen, Ammonia as N 5230
Nitrogen, Nilrate+Nilrite as N 52
Potassium 1440
Sodium 11300
Sulfate 87100
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
-Acidity reported for informational purposes due to a sample pH of less than 4.
PHYSICAL PROPERTIES
pH
Solids, Total Dissolved TOS@ 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 MOC
Report
Definitions:
RL -Analyte reporting limit.
OCL -Quality control limit.
1.99 S.u.
107000 mg/L
109000 ug/L
215 ug/L
3670 ug/L
7500 ug/L
26500 ug/L
168000 ug/L
2920000 uglL
11800 ug/L
209000 ug/L
NO ug/L
43800 ug/L
40900 ug/L
5810 ug/L
193 ug/L
350 ug/l
378 ug/L
217000 ug/L
1090000 ugIL
224000 ug/L
3400 pCi/L
45.0 pCi/L
2.8 pCi/L
MDC -Minimum detectable concentration
Report Date: 09/09/10
Collection Date: 08/03/10 13:50
DateRecelved: 08/05/10
Matrix: Aqueous
MCU
Qualifiers RL QCL Method Analysis Date I By
0
0
0
0
0
0
0
0
o
D
o
D
D
D
o
o
o
5 A2310 B 08/16/10 10:24 I ja
A2320 B 08/16/1009:30 I ja
A2320 B 08/16/1009:30 I ja
22 E200.7 08/27/1016:461 cp
1 A4500-G1 B 08/24/1010:13/1r
1.0 A4500·FC 0811711 0 11 :54 I Ja
5.1 E200.7 08/27/1016:461 cp
100 A4500·NH3 G 08/24/10 16:48/1JI
2 E353.2 08/19/102O:24/1jl
1.9 E200.7 08/27/1016:461 cp
28 E200.7 08/27/10 16:461 cp
2000 A4500·S04 E 08/31/10 13:19/1jl
0.01 A4500-H B 08/06/10 13:21 IIr
220 A2540C 08/09/10 12:17l1r
5.0 E200.8 08/10/10 03:38 I sml
1.6 E2oo.8 09/01/1000:181 sml
0.72 E200.8 08/10/1003:381 sml
20 E2oo.8 08/26/1018:541 sml
10 E2oo.8 08/2611018:541 sml
10 E200.8 08/10/1003:381 sml
300 E200.7 08/1011015:491 cp
1.5 E200.8 08/10/10 03:381 sml
10 E200.8 09/01/1000:181 sml
4.0 E200.8 08/10/1003:381 sml
10 E200.8 08/10/1003:381 sml
35 E200.8 08/10/1003:381 sml
12 E200.8 08/10/1003:381 sml
10 E200.8 08/10/10 03:381 sml
0.58 E2oo.8 08/10/10 03:381 sml
100 E200.8 08/10/1003:381 sml
0.72 E200.8 08/10/1003:381 sml
20 E200.8 08/26/10 18:541 sml
10 E200.8 09/01/1000:18/sml
E900.1 08/25/10 02:11 I plJ
E900.1 08/25/10 02:11 I plJ
E900.1 08/25/1002:111 plj
MeL -Maximum conlaminanllevel.
NO -Not detected at the reporting limit.
D • RL increased due to sample matrix.
Page 12 of 39
EN:RGY
L;\~,LrU"OI II :-~~
www.enerayllb.com
.."..E-*--Sjg JIft
Halena, NT 117-472-0711 • 91111nlS, NT IGI-735-4418 • Cnper, WY •• 8-235-1515
Gllletta, W'f 111-111-7175 • Rapid City, SD '18-172-1225 • CoIl1li8 StJtlOll, TX ....... D-221.
LABORATORY ANAL VTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
Annual Tailings Sample
C 10080205-005
Client Sample 10: Cell4A
Analyses
DATA QUAUTY
NC Balance (± 5)
Anions
Cations
Solids, Total Dissolved Calculated
TOS Balance (O.SO -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-dS
RL -Analyle reporting limit.
QCL -Quality control limit.
Result
0.0244
2030
2030
113000
0.950
55
NO
NO
S.5
5.5
NO
NO
NO
NO
NO
106
115
96.0
8S.0
Units
%
meqlL
meqlL
mglL
uglL
uglL
uglL
uglL
uglL
uglL
ug/L
uglL
ug/L
uglL
%REC
%REC
%REC
%REC
Qualifiers RL
20
1.0
1.0
1.0
1.0
20
1.0
1.0
1.0
1.0
80-120
70-130
80-120
80-120
Report Dlte: 09/09/10
Collection Dlte: 08/03/10 13:50
DlteRecelved: 08/05/10
Matrix: Aqueous
Mew
QCL Method Analysis Date I By
Calculation 08131/1013:491 kbh
Calculation OS/31/10 13:49/ kbh
Calculation OS/31/10 13:491 kbh
Calculation OS/31/10 13:491 kbh
Calculation 08/31/1013:491 kbh
SWS260B OS/09/10 17:291 jlr
SWS260B OS/09/10 17:29 / jlr
SWS260B OS/09/10 17:29 / jlr
SWS260B 08/09/10 17:29 / jlr
SWS260B OS/09/10 17:29 / jlr
SWS260B 08/09/10 17:29/ jlr
SWS260B 08/09/1017:29/ jlr
SWS260B 08/09/10 17:29 I jlr
SWS260B 08/09/10 17:291 jlr
SWS260B 08/09/10 17:29 / jlr
SWS260B 08/09/1017:291 jlr
SW8260B 08/09/10 17:29/jlr
SW8260B 08/09/10 17:291 jlr
SW8260B 08/09/10 17:291 jlr
MCL -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 13 of 39
A
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
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-0058
Client Sample ID: Cell 4A
Collection Date: 8/3/2010 1350h
Received Date: 8/5/2010 l000h
Method Used: SW8270D
Contact: 10 Ann Tischler
Analyzed: 8/9/2010 2226h
Extracted: 8/9/2010 0905h
Analytical Results SVOAs List by GCIMS Method 8270D/3510C
Units: JlglL
Dilution Factor: 1
Compound
1,2,4-Triehlorobenzene
1,2-Diehlorobenzene
1 ,3-Diehl orobenzene
1,4-Dichlorobenzene
I-Methylnaphthalene
2,4,5-Trieh lorophenol
2,4,6-Triehlorophenol
2,4-Diehlorophenol
2,4-Dimethylphenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chloronaphthalene
2-Chlorophenol
2-Methylnaphthalene
2-Methylphenol
2-Nitrophenol
3&4-Methylphenol
3,3' -Diehlorobenzidine
4,6-Dinitro-2-methylphenol
4-8romophenyl phenyl ether
4-Chloro-3-methylphenol
4-Chlorophenyl phenyl ether
4-Nitrophenol
Aeenaphthene
Aeenaphthylene
Anthracene
Azobenzene
8enz(a)anthracene
CAS
Number
120-82-1
95-50-1
541-73-1
106-46-7
90-12-0
95-95-4
88-06-2
120-83-2
105-67-9
51-28-5
121-14-2
606-20-2
91-58-7
95-57-8
91-57-6
95-48-7
88-75-5
91-94-1
534-52-1
101-55-3
59-50-7
7005-72-3
100-02-7
83-32-9
208-96-8
120-12-7
103-33-3
56-55-3
Reporting Analytical
Limit Result Qual
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
20.0 <20.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
Report Date: 8117/2010 Page 17 of70
All analyses applicable to the CWA, SDWA, and RCRA are porfonned In accOlllance 10 NELAC protocols, Pertlnenlsampllng InfOlmalion Is localed on the attached COCo This report Is proVided for the exclusive use of Ihe
addressee, Privileges of subsequent use orthe name or this company or any member of Its staff, or reproduclloo ofrhls report in coonoellon with the advertisement, promorloo or sale or any product or process, or In connectlon
with the ... -publlcallon or Ihls report for any purpose other than for the addressee wUl he !!",nted ooly 00 conlact. This company accepts no responsibility except ror the due perfonnance of Inspecllon and/or analysis In good faith
and according to the rules of the trade and of science.
A
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
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-005B
Client Sample ID: Cell 4A
Collection Date: 8/3/2010 1350h
Received Date:
Method Used:
Analytical Results
Units: Ilg/L
Dilution Factor: 1
Compound
Benzidine
8/5/20101000h
SW8270D
Benzo(a)pyrene
Benzo(b)fluoranthene
Benzo(g,h,i )perylene
Benzo(k)fluoranthene
Bis(2-chloroethoxy)methane
Bis(2-chloroethyl) ether
Bis(2-chloroisopropyl) ether
Bis(2-ethylhexyl) phthalate
Butyl benzyl phthalate
Chrysene
Di-n-butyl phthalate
Di-n-octyl phthalate
Dibenz( a,h )an thracene
Diethyl phthalate
Dimethyl phthalate
Fluoranthene
Fluorene
Hexach lorobenzene
Hexachlorobutadiene
Hexachlorocyc1opentadiene
Hexachloroethane
Indeno( 1 ,2,3 -cd)pyrene
Isophorone
N-Nitrosodimethylamine
N-Nitrosodiphenylamine
N-Nitrosodi -n -propyl amine
Naphthalene
Nitrobenzene
Contact: Jo Ann Tischler
Analyzed: 8/9/2010 2226h
Extracted: 8/9/2010 0905h
SVOAs List by GC/MS Method 8270D/3510C
CAS Reporting Analytical
Number Limit Result Qual
92-87-5 10.0 < 10.0
50-32-8 10.0 < 10.0
205-99-2 10.0 < 10.0
191-24-2 10.0 < 10.0
207-08-9 10.0 < 10.0
111-91-1 10.0 < 10.0
111-44-4 10.0 < 10.0
108-60-1 10.0 < 10.0
117-81-7 10.0 19.6
85-68-7 10.0 < 10.0
218-01-9 10.0 < 10.0
84-74-2 10.0 < 10.0
117-84-0 10.0 < 10.0
53-70-3 10.0 < 10.0
84-66-2 10.0 < 10.0
131-11-3 10.0 < 10.0
206-44-0 10.0 < 10.0
86-73-7 10.0 < 10.0
118-74-1 10.0 < 10.0
87-68-3 10.0 < 10.0
77-47-4 10.0 < 10.0
67-72-1 10.0 < 10.0
193-39-5 10.0 < 10.0
78-59-1 10.0 < 10.0
62-75-9 10.0 < 10.0
86-30-6 10.0 < 10.0
621-64-7 10.0 < 10.0
91-20-3 10.0 < 10.0
98-95-3 10.0 < 10.0
Report Dale: 8117/2010 Page 18 of70
All analyses applicable to the CWA. SDWA. and RCRA are performed In accordance 10 NELAC prolocols. Pertinent sampling Infonnallon Is located on lhe attached COCo This report Is provided fOrlhe exclusive use of Ihe
addressee. Privileges ofsubsequenl use of the name of this company or any member of 11s staff, or reproduction of this report in connection with the advertisement. promotion or sale of any product or process, or in connecllon
wtth Ihe ",·publlcation ofth" repan fonny pUlJlOS<! oUler !han for the addressee will he granled only on conlacl. Th .. company accepts no responsibIlity excepl for the due perfonnance of Inspecllon and/or analysis In good failh
and according 10 lhe rul ... ofthe trade and of scIence.
A ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-00SB
Client Sample ID: Cell 4A
Collection Date: 8/3/2010 13S0h
Received Date:
Method Used:
8/5/2010 l000h
SW8270D
Contact: Jo Ann Tischler
Analyzed: 8/9/2010 2226h
Extracted: 8/912010 090Sh
AMERICAN
WEST
ANALYTICAL
LABORATORIES
Analytical Results SVOAs List by GCIMS Method 8270D/3510C
463 West 3600 South
Salt Lake City. UT
84115
Units: Ilg/L
Dilution Factor: 1
Compound
Pentachlorophenol
Phenanthrene
Phenol
Pyrene
[phone] Pyridine
Toll Free [phone] Surr: 2,4,6-Tribromophenol
Fax [phone] Surr: 2-Fluorobiphenyl
email: [e-mail] Surr: 2-Fluorophenol
Surr: Nitrobenzene-dS
Kyle F. Gross
Laboratory Director
Surr: Phenol-d6
Surr: Terphenyl-dl4
CAS
Number
87-86-5
85-01-8
108-95-2
129-00-0
110-86-1
118-79-6
321-60-8
367-12-4
4165-60-0
13127-88-3
1718-51-0
Library search reqlliredjor 4-ciJIorophe/lol. fOil chromatogram search /lot detected.
Jose Rocha
QAOfficer
Reporting Analytical
Limit Result Qual
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
14-159 71.5
10-124 29.3
10-106 12.2
10-180 37.8
10-122 19.4
10-199 85.9
Report Date: 8117/2010 Page 19 of 70
All analyses applicable 10 lbe CWA, SDWA, and RCRA are perfonned In accordance 10 NELAC prolocols. Penlnenl sampling Inrormallon Is localed on the allached COCo This repan Is proVided forthe exclusive use oflhe
addressee. Privileges of subsequent use of Ihe name of Ihls company or any member of II. staff, or reproduction oflhls repon In coonectlon with the advertisemenl, promotion or sale of any product or process, or In connection
with the re-publlcalion of Ihls repon for any purpose other than for Ihe addressee will be granled only on conlact. This company accepts no responslblilly exCepl 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
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
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-005A
Client Sample ID: Cell 4A
Collection Date: 8/3/2010 1350h
Received Date:
Method Used:
Analytical Results
8/5/2010 l000h
SW8260C
Units: ",giL
Dilution Factor: 10
Compound
T etrah ydrofuran
Surr: 1,2-Dichloroethane-d4
Surr: 4-Bromotluorobenzene
Surr: Dibromotl uoromethane
Surr: Toluene-d8
The reporti/lg limits were raised due to sample matrix illterferellces.
Contact: Jo Ann Tischler
Analyzed: 8/5/2010 2206h
VOAs by GC/MS Method 8260CIS030C
CAS Reporting Analytical
Number Limit Result Qual
109-99-9 10.0 < 10.0
17060-07-0 77-144 104
460-00-4 80-123 103
1868-53-7 80-124 96.9
2037-26-5 80-125 100
Report Date: 8/17/2010 Page 300[70
All anaty.es applicable 10 lbe CWA. SDWA. and RCRA are perfonned In accordance 10 NELAC protocol •. Pertlnenl sampling InFonnalion Is Iocaled on Ibe anached COCo This report Is provided for lhe exclusive .... oFlhe
addressee. Privileges of su~1 use of lhe name of Ihls company or .ny member of lis staff. or reproducllon oflhis report In connecllon wllb the advertisement. promollon or sale of any product or process. or In connecllon
with Ihe re'publicalloo of Illis report for .ny purpose other than for the .ddr ...... wUl be gnnted only on conlacl. This company accepts no responsiblllly except for the due perform.nce of Inspecllon anIV", analy.I.ln good fallh
.nd according 10 lhe rules of tl"!Jade and of science.
EN:RGY
I_r,,~.(", 1./'1 (.I; )Ir_"-
-----rEJ" www.enerrtllb.com
AM/JI/aI ElriIIIIa Dct tilt
Hllene, NT 177-472-1711 • Bllllnls, NT 881-735-4411 • Casper, W't .... 235-1515
GIIIBH., W'( 11&-111-7175 . Rapid City, SD 111-172-1225 . CoIllge StatlGn,1X IIWID-2211
LABORATORY ANALYTICAL REPORT
Client: Denison Mines USA Corp Report Date: 09/09/10
Project: Annual Tailings Sample Collection Date: 08/03/10 13:40
LabID: C 10080205-006 DateRecelved: 08/05/10
Client Sample ID: Cell4A LOS Matrix: Aqueous
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date I By
MAJOR IONS
Acidity, Total as CaC03 14600 mglL 5 A2310 B 08/16/10 10:241 ja
Carbonate as C03 NO mglL A2320 B 08/16/10 09:30 I ja
Bicarbonate as HC03 NO mglL 1 A2320 B 08/16/10 09:30 I ja
Calcium 474 mglL 0 22 E200.7 08/27/1016:50 I cp
Chloride 4670 mglL A4500-G1 B 08/24/10 10:17 Ilr
Fluoride 39.4 mglL 0 1.0 A4500·FC 08/17/10 11:57/ja
Magnesium 3240 mglL 0 5.1 E200.7 08/27/10 16:50 I cp
Nitrogen, Ammonia as N 2290 mglL 0 20 A4500-NH3G 08/24/10 16:2811jl
Nitrogen, Nitrate+Nitrite as N 183 mglL 0 5 E353.2 08/19/10 2O:32/1jl
Potassium 934 mglL 0 1.9 E200.7 08/27/10 16:50 I cp
Sodium 6700 mglL 0 28 E200.7 08/27/1016:50 I cp
Sulfate 41700 mglL 0 1000 A4S00-S04 E 08/31/10 13:24 I Ijl
-Acidity reported for informational purposes due to a sample pH of less than 4.
PHYSICAL PROPERTIES
pH 2.53 S.u. 0.01 A4500-H B 08/06/10 13:23 Ilr
Solids, Total Dissolved TOS @ 180 C 56900 mglL 0 130 A2540 C 08/09/10 12:17 Ilr
METALS· DISSOLVED
Arsenic 54000 ug/L 5.0 E200.8 08/10/10 05:20 I sml
Beryllium 295 ug/L 0 1.3 E200.8 08/10/10 05:20 I sml
Cadmium 2650 ug/L 0 0.72 E200.8 08/10/10 05:20 I sml
Chromium 3890 ug/L 25 E200.8 08/10/10 05:20 I sml
Cobalt 15200 ug/L 10 E200.8 08110110 05:20 I sml
Copper 116000 ug/L 10 E200.8 08/10/10 05:20 I sml
Iron 1420000 uglL 0 150 E200.7 08/10/1016:131 cp
Lead 3400 ug/L 1.5 E200.8 08/10/10 05:20 I sml
Manganese 157000 uglL 10 E200.8 08/10/10 05:20 I sml
Mercury 6.2 ug/L 0 4.0 E200.8 08/10/10 05:20 I sml
Molybdenum 23900 uglL 10 E200.8 08/10/10 05:20 I sml
Nickel 23900 uglL 0 35 E200.8 08/10/10 05:20 I sml
Selenium 2820 ug/L 0 12 E200.8 08/10/10 05:20 I sml
Silver 62 ugIL 10 E200.8 OS/23/10 lS:361 sml
Thallium 194 ugIL 0 0.58 E200.S OS/10/10 05:20 I sml
Tin 1S0 uglL 100 E200.S OSll 011 0 05:20 I sml
Uranium 145000 uglL 0 0.72 E200.S 08/10/10 05:20 I sml
Vanadium 518000 ug/L 15 E200.S OS/10/10 05:20 I sml
Zinc 152000 uglL 14 E200.S OS/1 011 a 05:20 I sml
RADIONUCUDES • DISSOLVED
Gross Alpha minus Rn & U 3230 pCi/L E9OO.1 OS/25/10 02:11 I plj
Gross Alpha minus Rn & U Precision (:t) 43.1 pCi/L E900.1 OS/25/10 02:11 I plj
Gross Alpha minus Rn & U MOC 2.7 pCilL E900.1 OS/25/10 02:11 I plj
Report Rl -Analyte reporting limit. Mel -Maximum contaminant level.
Definition.: OCL -Quality control limit. NO -Not detected at the reporting limit.
MDC -Minimum detectable concentration o -RL increased due to sample matrix.
Page 14 of 39
EI\ERGY
,"l.1 1( 11,,11,1)\;:<
www.ener&y!eb.com """*" EIaIIIIa .. 1m
Helena, NT 177-472-1171 t • Bllllnls, NT 811-735-44' •• Casper, W1 .... 23!-1515
Glllatte, W'f '11-186-7175 • Rapid City, SD .'1-172-1225 • Coll8l8 station, TX I.WID-221.
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
Annual Tailings Sample
C 10080205-006
Client Sample 10: Cell 4A LOS
Analyses
DATA QUAUTV
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-dB
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Rasult
2.18
1020
1060
58600
0.970
130
NO
NO
52
13
50
NO
1.5
NO
NO
101
9B.0
9B.0
91.0
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
Qualifiers Rl
20
1.0
1.0
1.0
1.0
20
1.0
1.0
1.0
1.0
80-120
70-130
80-120
80-120
Report Date: 09/09110
Collection Date: 08/03/10 13:40
DateRecelved: 08/05/10
Matrix: Aqueous
MCU
QCl Method Analysis Date I By
Calculation OB/3111 0 13:50 1 kbh
Calculation OB131/10 13:50/ kbh
Calculation 08/31/10 13:50 I kbh
Calculation OB/31/10 13:50 I kbh
Calculation OB/31/10 13:501 kbh
SW8260B 08/09/10 18:05/ jlr
SW8260B 08/09/10 18:051 jlr
SWB260B 08/09/10 18:051 jlr
SW8260B 08/09/10 18:051 jlr
SWB260B 08/09/10 18:051 jlr
SWB260B 08/09/10 18:051 jlr
SW8260B 08/09/1018:051 jlr
SW8260B 08/09/10 18:051 jlr
SWB260B 08/09/10 18:051 jlr
SW8260B 08/09/10 18:051 jlr
SW8260B 08/09/10 18:05 1 jlr
SWB260B OB/09/10 18:05 / jlr
SW8260B 08/09/1018:05/ jlr
SW8260B 08/09/10 18:05 1 jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 15 of 39
A
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
QAOfficer
ORGANIC ANALYTICAL REPORT
Client: Denison Mines
Project: Annual Tailings
Lab Sample 10: 1008101-006B
Client Sample 10: Cell 4A LDS
Collection Date: 8/3/2010 1340h
Received Date: 8/5/2010 lOOOh
Method Used: SW8270D
Analytical Results
Units: Jlg/L
Dilution Factor: 1
Compound
1,2,4-Trich lorobenzene
1,2-Dichlorobenzene
1,3-Dichlorobenzene
1,4-Dichlorobenzene
I-Methyl naphthalene
2,4,5-Trichlorophenol
2,4,6-Trich lorophenol
2,4-Dichlorophenol
2,4-Dimethylphenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chloronaphthalene
2-Chlorophenol
2-Methyl naphth alene
2-Methylphenol
2-Nitrophenol
3&4-Methylphenol
3,3' -Dichlorobenzidine
4,6-Dinitro-2-methylphenol
4-Bromophenyl phenyl ether
4-Chloro-3-methylphenol
4-Chlorophenyl phenyl ether
4-Nitrophenol
Acenaphthene
Acenaphthylene
Anthracene
Azobenzene
Benz(a)anthracene
Contact: Jo Ann Tischler
Analyzed: 8IIO/2010 1632h
Extracted: 8/9/2010 0905h
SVOAs List by GC/MS Method 8270D/3510C
CAS Reporting Analytical
Number Limit Result Qual
120-82-1 10.0 < 10.0
95-50-1 10.0 < 10.0
541-73-1 10.0 < 10.0
106-46-7 10.0 < 10.0
90-12-0 10.0 < 10.0
95-95-4 10.0 < 10.0
88-06-2 10.0 < 10.0
120-83-2 10.0 < 10.0
105-67-9 10.0 < 10.0
51-28-5 20.0 <20.0
121-14-2 10.0 < 10.0
606-20-2 10.0 < 10.0
91-58-7 10.0 < 10.0
95-57-8 10.0 < 10.0
91-57-6 10.0 < 10.0
95-48-7 10.0 < 10.0
88-75-5 10.0 < 10.0
10.0 < 10.0
91-94-1 10.0 < 10.0
534-52-1 10.0 < 10.0
101-55-3 10.0 < 10.0
59-50-7 10.0 < 10.0
7005-72-3 10.0 < 10.0
100-02-7 10.0 < 10.0
83-32-9 10.0 < 10.0
208-96-8 10.0 < 10.0
120-12-7 10.0 < 10.0
103-33-3 10.0 < 10.0
56-55-3 10.0 < 10.0
Report Date: 8117/20 I 0 Page 20 af70
All anatyses appllcabtelo lbe CWA. SDWA, and RCRA are perfonned In accordance to NELAC protocols. Pertinent sampling infonnatlon Is located on the aHached COCo this report Is provided for tbe eKclu.lve me of the
addressee. Privileges ofsubsequenl use oflhe name of this company or any member of lis staff, or reproduction of this report in connection with the advertisement, promotion or sale of any product or process, or In connecllon
with the "'-publication of this report for any purpose other than for lbe addressee will be granted only on contaCl, this company accepts no responsibility except for the due perfonnance of In.pecUon and/or analysis in good faith
and according 10 the rules oflhe trade and of science.
A
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City. UT
84115
[phone]
ToU Free [phone]
Fax [phone]
email: [e-mail]
Kyle F. Gross
Laboratory Director
Jose Rocha
QAOfficer
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-006B
Client Sample ID: Cell 4A LDS
Collection Date: 8/3/2010 1340h
Received Date:
Method Used:
Analytical Results
Units: j.1g/L
Dilution Factor: 1
Compound
Benzidine
Benzo(a)pyrene
8/5/2010 l000h
SW8270D
Benzo(b )fluoranthene
Benzo(g,h,i )perylene
Benzo(k)f1 uoranthene
Bis(2-chloroethoxy)methane
Bis(2-chloroethyl) ether
Bis(2-chloroisopropyl) ether
Bis(2-ethylhexyl) phthalate
Butyl benzyl phthalate
Chrysene
Di-n-butyl phthalate
Di-n-octyl phthalate
Dibenz( a,h )an thracene
Diethyl phthalate
Dimethyl phthalate
Fluoranthene
Fluorene
Hexach lorobenzene
Hexachlorobutadiene
Hexach lorocyclopen tadiene
Hexachloroethane
Indeno{l,2,3-cd)pyrene
Isophorone
N-Nitrosodimethylamine
N-Nitrosodiphenylamine
N-Nitrosodi-n-propylamine
Naphthalene
Nitrobenzene
Contact: Jo Ann Tischler
Analyzed: 8/10/2010 1632h
Extracted: 8/9/2010 0905h
SVOAs List by GCIMS Method 82700/3510C
CAS Reporting Analytical
Number Limit Result Qual
92-87-5 10.0 < 10.0
50-32-8 10.0 < 10.0
205-99-2 10.0 < 10.0
191-24-2 10.0 < 10.0
207-08-9 10.0 < 10.0
111-91-1 10.0 < 10.0
111-44-4 10.0 < 10.0
108-60-1 10.0 < 10.0
117-81-7 10.0 54.9
85-68-7 10.0 < 10.0
218-01-9 10.0 < 10.0
84-74-2 10.0 < 10.0
117-84-0 10.0 < 10.0
53-70-3 10.0 < 10.0
84-66-2 10.0 < 10.0
131-11-3 10.0 < 10.0
206-44-0 10.0 < 10.0
86-73-7 10.0 < 10.0
118-74-1 10.0 < 10.0
87-68-3 10.0 < 10.0
77-47-4 10.0 < 10.0
67-72-1 10.0 < 10.0
193-39-5 10.0 < 10.0
78-59-1 10.0 < 10.0
62-75-9 10.0 < 10.0
86-30-6 10.0 < 10.0
621-64-7 10.0 < 10.0
91-20-3 10.0 < 10.0
98-95-3 10.0 < 10.0
Report Date: 8/17/2010 Page 21 of70
Allanatyses applicable to tbe CWA. SDWA, and ReRA are perfonned In occonlance to NELAC protocols. Pertinent sampling Infonnallon Is located on the aHached COCo This report Is provided for the exclusive use oOhe
addressee. Prtvlleges of subsequent use of the name of this company or any member of Its staff, or reprodu<:tlon of this report In connection with the advertisement. promotion or sale ofony product or process, or In connection
wllh the re-publlcation of this report for lIrty pulJ'O"'! other than for the addressee wHl be granted only on contact. This company accepts no responsibility except for the due perfonnance of Inspectloo and/or analysis In good fallh
and according to the rules of the llade and of sci en co _
A ORGANIC ANALYTICAL REPORT
Client: Denison Mines
Project: Annual Tailings
Lab Sample ID: 1008101-006B
Client Sample ID: Cell 4A LDS
Collection Date: 8/312010 1340h
Received Date:
Method Used:
8/5/2010 1000h
SW8270D
Contact: Jo Ann Tischler
Analyzed: 8110/2010 1632h
Extracted: 8/9/2010 0905h
AMERICAN
WEST
ANALYTICAL
LABORATORIES
Analytical Results SVOAs List by GC/MS Method 8270D/351OC
463 West 3600 South
Salt Lake City. UT
84115
Units: Ilg/L
Dilution Factor: 1
Compound
Pentachlorophenol
Phenanthrene
Phenol
Pyrene
[phone] Pyridine
Toll Free [phone] Surr: 2,4,6-Tribromophenol
Fax [phone] Surr: 2-F1uorobiphenyl
email: [e-mail] Surr: 2-Fluorophenol
Surr: Nitrobenzene-d5
Kyle F. Gross
Laboratory Director
Surr: Phenol-d6
Surr: Terphenyl-dl4
CAS
Number
87-86-5
85-01-8
108-95-2
129-00-0
110-86-1
118-79-6
321-60-8
367-12-4
4165-60-0
13127-88-3
1718-51-0
Library search required jor 4-chlorophenol. lOll chromatogram searchllot detected.
Jose Rocha
QA Officer
Reporting Analytical
Limit Result Qual
10.0 < 10.0
10.0 < 10.0
10.0 23.5
10.0 < 10.0
10.0 < 10.0
14-159 42.3
10-124 70.5
10-106 38.5
10-180 43.8
10-122 39.1
10-199 149
Report Date: 8/17/20 I 0 Page 22 of 70
All analyse. applicable 10 lhe CWA. SDWA. and RCRA are perfonned In aoconlance to NELAC prolocols. Pertinent sampling Infonnallon Is located on the attached COCo This report Is provided for lhe .. ciu.lve .... of the
addre ....... Privileges of StIbsequenl use oflhe name of this cOOlpany or any member of II •• taff, or reproduction of this report In connecllon wllh the advertlsemenl. promotion ... sale of any product or proc .... or In connection
wllh Ihe re-publicatlon of this report for auy puq>ase other than for the addressee will be granted only on conlact. This company accepts no responsibility except for lhe due perfonnance of Inspection andl ... analysl.ln good faith
and according 10 the rules of the Inde and of science.
A
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City. VT
84115
[phone]
Toll Free [phone]
Fax [phone]
email: [e-mail]
Kyle F. Gross
Laboratory Director
Jose Rocha
QAOfficer
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-006A
Client Sample 10: Cell 4A LDS
Collection Date: 8/312010 1340h
Received Date:
Method Used:
8/512010 l000h
SW8260C
Analytical Results
Units: ~glL
Dilution Factor: 10
Compound
T etrah ydrofuran
Surr: 1,2-Dichloroethane-d4
Surr: 4-Bromofluorobenzene
Surr: Dibromofluoromethane
Surr: Toluene-d8
The repoHillg limits were raised dlle to sample matrix illteljerences.
Contact: Jo Ann Tischler
Analyzed: 8/5/2010 222Sh
VOAs by GC/MS Method 8260C/S030C
CAS Reporting Analytical
Number Limit Result Qual
109-99-9 10.0 158
17060-07-0 77-144 104
460-00-4 80-123 102
1868-53-7 80-124 99.0
2037-26-5 80-125 101
Report Date: 8117/2010 Page 31 of70
All analy..,. applicable to tlte CWA. SDWA, and ReRA are perfonned In accordance to NELAC protocols. Pertinent sampllnglnfonnallon Is located on the allached COCo This report Is proVided for the exclusive use of the
addressee. Prtvlleges of subsequenl lISe or Ihe name of this company or any member of its 513fT, or reproducllon of this report In connection with the advertisement, promollon or sale of any produCI or process, or In connecUon
with the re-pubUcalion of this report for any purpose o~ler than for tlte addressee will be gTimted only on contact. This company accepts no respomlbility except for the due perfonnance of Inspectloo and/or analysis In good faith
and according to tlte rules of the Inde and of science.
EI\ERGY
'./\1-,( 'ld"lr?I::~,
www.energylab.com
AMf1Iic:II £rtdIRu Sbtu 1m Helena, MT 177-472-0711 • Billings, MT 111·735-4481 • Casper, WY 1.1-235·1515
Gillette, WY 11&-11&·7175 • Rapid CItr, SD 118-172·1225 • Collaga Station, 1X 1.1 .. 110221.
LABORATORY ANALYTICAL REPORT
Client: Denison Mines USA Corp Report Date: 09/09/10
Project: Annual Tailings Sample Collection Date: 08/03/10 10:50
LabID: C 10080205-007 DateRecelved: 08/05/10
Client Sample ID: Slimes 65 Matrix: Aqueous
MCW
Analyses Result Units Qualifiers RL QCL Mathod Analysis Date I By
MAJOR IONS
Acidity, Total as CaC03 26400 mglL 5 A2310 B 06/16/1010:241 ia
Carbonate as C03 NO mglL A2320 B 06/16/1009:30/ ia
Bicarbonate as HC03 NO mglL A2320 B 06/16/10 09:30 / ia
Calcium 501 mglL 0 22 E200.7 06/27/1016:54/ cp
Chloride 4590 mglL 1 A4500-CI B 08/24/10 10:20 Ilr
Ruoride 2.6 mglL 0 1.0 A4500-FC 06/17/1012:01/ ia
Magnesium 3750 mglL 0 5.1 E200.7 08/27/1016:54/ cp
Nitrogen, Ammonia as N 3470 mglL 0 100 A4500-NH3G 08/24/10 17:00 I Iii
Nitrogen, Nitrate+Nitrite as N 122 mglL 0 5 E353.2 08/23/10 15:19/ Iii
Potassium 618 mglL 0 1.9 E200.7 08/27/1016:541 cp
Sodium 4610 mglL 0 28 E200.7 06/27/10 16:54 / cp
Sulfate 63200 mglL 0 2000 A4500-S04 E 06/31/10 13:2611il
-Acidity reported for informational purposes due to a sample pH of less than 4.
PHYSICAL PROPERTIES
pH 3.39 S.u. 0.01 A4500-H B 08/06/10 13:24/ Ir
Solids, Total Dissolved TOS @ 180 C 79200 mglL 0 170 A2540C 08/09/10 12:17/1r
METALS· DISSOLVED
Arsenic 23300 ug/L 5.0 E200.8 06/10/1005:261 sml
Beryllium 282 ug/L 0 1.3 E200.6 06/10/10 05:26/ sml
Cadmium 6320 ug/L 0 0.72 E200.6 08/10/10 05:26/ sml
Chromium 2480 ug/L 25 E200.6 08/10/10 05:26/ sml
Cobalt 46100 ugiL 10 E200.8 06/10/1005:261 sml
Copper 146000 ug/L 10 E200.8 08/10/1005:26/ sml
Iron 2770000 uglL 0 2200 E200.7 06/10/1016:221 cp
Lead 579 ug/L 1.5 E200.6 06/10/1005:261 sml
Manganese 141000 ug/L 10 E200.6 06/10/1005:26/ sml
Mercury NO ug/L 0 4.0 E200.8 08110/1005:26/ sml
Molybdenum 4680 ug/L 10 E200.6 06/10/1005:26/ sml
Nickel 125000 ug/L 0 35 E200.8 08/10/10 05:26/ sml
Selenium 839 ugiL 0 12 E200.8 08/10/1005:26/ sml
Silver NO ug/L 10 E200.8 06/23/10 18:431 sml
Thallium 464 ugiL 0 0.56 E200.8 06/10/1005:26/ sml
Tin NO ugiL 100 E200.8 08/10/1005:261 sml
Uranium 31100 ugiL 0 0.72 E200.8 06/10/1005:26/ sml
Vanadium 468000 uglL 15 E200.8 06/10/1005:26/ sml
Zinc 650000 ugiL 0 30 E200.7 06/10/1016:22/ cp
RADIONUCLIDES • DISSOLVED
Gross Alpha minus Rn & U 966 pCi/L E900.1 08/25/1002:11 / pli
Gross Alpha minus Rn & U Precision (±) 23.9 pCi/L E900.1 08/25/10 02:11 / pli
Gross Alpha minus Rn & U MOC 2.7 pCi/L E900.1 06/25/1002:11/ pli
Report RL -Analyte reporting limit. MCL -Maximum contaminant level.
Definitions: OCL -Quality controlUmit. NO -Not detected at the reporting limit.
MDC -Minimum delectable concentration o -RL increased due to sample matrix.
Page 16 of 39
EN:RGY
LJV ,Cr.l,fGr)F:~. rD" www.energytab.com
.."..baIIa SIMI rlU
Helena, MT 877-472-0711 • Bllllnll, MT IGI-731-4481 • Casper, WY 818-235-151 D
Gillette, W'( 111-1"-7175 • Rapid City, SD 818-172-1225 • CoIleaa Station, 1X ....... 0..221.
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
Annual Tailings Sample
C10080205-007
Client Sample 10: Slimes 65
Analyses
DATA QUAUTY
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
De"nltlon8:
RL -Analyte reporting limit.
OCL -Quality control limit.
Result
-4.62
1450
1320
77800
1.02
490
ND
NO
17
2.4
84
ND
17
2.7
2.4
100
102
99.0
92.0
Units
%
meqlL
meqlL
mglL
ug/L
uglL
uglL
uglL
uglL
ug/L
ug/L
ug/L
ug/L
uglL
%REC
%REC
%REC
%REC
Qualltlers RL
20
1.0
1.0
1.0
1.0
20
1.0
1.0
1.0
1.0
80-120
70-130
80-120
80-120
Report Date: 09/09/10
Collection Date: 08/03/10 1 0 :50
DateRecalved: 08/05/10
Matrix: Aqueous
MCl)
QCL Method Analysis Date I By
Calculation 08/31/1013:50 I kbh
Calculation 08/31/10 13:50 I kbh
Calculation 08/31/1013:501 kbh
Calculation 08/31/1013:501 kbh
Calculation 08/31/1013:501 kbh
SW8260B 08/09/10 18:40 1 jlr
SW8260B 08/09/10 18:40 1 jlr
SW8260B 08/09/1018:40 I jlr
SW8260B 08/09/10 18:40 1 jlr
SW8260B 08/09/10 18:401 jlr
SW8260B 08/09/10 18:40 1 jlr
SW8260B 08/09/10 18:40 I jlr
SW8260B 08/09/1018:40 I jlr
SW8260B 08/09/1018:40 I jlr
SW8260B 08/0911018:401 jlr
SW8260B 08/09/10 18:40 1 jlr
SW8260B 08/09/1018:401 jlr
SW8260B 08/09/1018:401 jlr
SW8260B 08/09/10 18:401 jlr
MCL -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 17 of 39
A
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
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-007B
Client Sample ID: Slimes 65
Collection Date: 8/3/2010 1050h
Received Date: 8/5/2010 l000h
Method Used: SW8270D
Contact: Jo Ann Tischler
Analyzed: 8/9/2010 2320h
Extracted: 8/9/2010 0905h
Analytical Results SVOAs List by GC/MS Method 8270D/3510C
Units: IlgiL
Dilution Factor: 1
Compound
1,2,4-Trich lorobenzene
1,2-Dichlorobenzene
1,3-Dichlorobenzene
l,4-Dichlorobenzene
1-Methyl naphthalene
2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
2,4-Dichlorophenol
2,4-Dimethylphenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,6-Dinitrotoluene
2-Chloronaphthalene
2-Chlorophenol
2-Methyl naphth alene
2-Methylphenol
2-Nitrophenol
3&4-Methylphenol
3,3' -Dichlorobenzidine
4,6-Dinitro-2-methylphenol
4-Bromophenyl phenyl ether
4-Chloro-3-methylphenol
4-Chlorophenyl phenyl ether
4-Nitrophenol
Acenaphthene
Acenaphthylene
Anthracene
Azobenzene
Benz( a)anthracene
CAS
Number
120-82-1
95-50-1
541-73-1
106-46-7
90-12-0
95-95-4
88-06-2
120-83-2
105-67-9
51-28-5
121-14-2
606-20-2
91-58-7
95-57-8
91-57-6
95-48-7
88-75-5
91-94-1
534-52-1
101-55-3
59-50-7
7005-72-3
100-02-7
83-32-9
208-96·8
120·12·7
103-33-3
56-55-3
Reporting Analytical
Limit Result Qual
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
20.0 <20.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
Reporl Date: 8/17/2010 Page 23 of70
All analyses applicable to the CWA. SDWA. and RCRA are performed In accordance to NELAC prolocols. Perllnentsampllng InFonnalion Is located on the aHached COCo This reporlls provided For the exclusive use oFthe
addressee. Privileges ofsubsequenl use of the name of this company or any member of its staff, or reproductLon of this report In coonecllon with the advertisement, promotion or sale of any product or process, or In connection
with the re-publlcatlon of Ihls repurl For any purpose other than For the addressee will be granted only on contact. This company accepls no responslbitliy except for the due perfonnance of InspecHon and/or 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 10:
Denison Mines
Annual Tailings
1008101-007B
Client Sample 10: Slimes 65
Collection Date: 8/3/2010 1050h
Received Date: 8/5/2010 l000h
Method Used: SW8270D
Analytical Results
Units: ~g/L
Dilution Factor: 1
Compound
Benzidine
Benzo(a)pyrene
Benzo(b)fluoranthene
Benzo(g,h,i )perylene
Benzo(k)fluoranthene
Bis(2-chloroethoxy)methane
Bis(2-chloroethyl) ether
Bis(2-chloroisopropyl) ether
Bis(2-ethylhexyl) phthalate
Butyl benzyl phthalate
Chrysene
Di-n-butyl phthalate
Di-n-octyl phthalate
Dibenz(a,h)anthracene
Diethyl phthalate
Dimethyl phthalate
Fluoranthene
Fluorene
Hexach lorobenzene
Hexachlorobutadiene
Hexachlorocyclopen tadiene
Hexachloroethane
Indeno(I,2,3-cd)pyrene
Isophorone
N-Nitrosodimethylamine
N-Nitrosodiphenylamine
N-Nitrosodi-n-propylamine
Naphthalene
Nitrobenzene
Contact: Jo Ann Tischler
Analyzed: 8/9/2010 2320h
Extracted: 8/9/2010 0905h
SVOAs List by GCIMS Method 8270D/351OC
CAS Reporting Analytical
Number Limit Result Qual
92-87-5 10.0 < 10.0
50-32-8 10.0 < 10.0
205-99-2 10.0 < 10.0
191-24-2 10.0 < 10.0
207-08-9 10.0 < 10.0
111-91-1 10.0 < 10.0
111-44-4 10.0 < 10.0
108-60-1 10.0 < 10.0
117-81-7 10.0 22.0
85-68-7 10.0 < 10.0
218-01-9 10.0 < 10.0
84-74-2 10.0 < 10.0
117-84-0 10.0 < 10.0
53-70-3 10.0 < 10.0
84-66-2 10.0 < 10.0
131-11-3 10.0 < 10.0
206-44-0 10.0 < 10.0
86-73-7 10.0 < 10.0
118-74-1 10.0 < 10.0
87-68-3 10.0 < 10.0
77-47-4 10.0 < 10.0
67-72-1 10.0 < 10.0
193-39-5 10.0 < 10.0
78-59-1 10.0 < 10.0
62-75-9 10.0 < 10.0
86-30-6 10.0 < 10.0
621-64-7 10.0 < 10.0
91-20-3 10.0 < 10.0
98-95-3 10.0 < 10.0
Report Date: 8117/2010 Page 24 of7D
All .nalyses applicable 10 die CWA. SDWA. and RCRA are performed In accordance 10 NELAC prolocols. Penlnenl sampling Infonnatlon Is localed on the a\lOched COCo This report Is proVided forthe exclu.lve .... oflhe
addressee. Privileges of subsequenl use of the name of Ihls company or any member of lis staff. or reproducllon oflhls report in connection wllh lhe advertlsemenl. promotion or sale of any product or proc .... or In connecllon
with Ihe re-publlcatlon of Ihls report for any pUlJ>05O other than for lhe addressee will be granled only on conlacl. This company accepts no responsiblilly excepl for the due performance of Inspection and/or analy.I.ln gond faith
and according 10 lhe rules of U .. lrade and of science.
A ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-007B
Client Sample ID: Slimes 65
Collection Date: 8/3/2010 1050h
Received Date: 8/5/20101000h
Method Used: SW8270D
Contact: Jo Ann Tischler
Analyzed: 8/9/2010 2320h
Extracted: 8/9/2010 0905h
AMERICAN
WEST
ANALYTICAL
LABORATORIES
Analytical Results SVOAs List by GelMS Method 8270D/3510C
463 West 3600 South
Salt Lake City. VT
84115
Units: Ilg/L
Dilution Factor: 1
Compound
Pentachlorophenol
Phenanthrene
Phenol
Pyrene
[phone] Pyridine
Toll Free [phone] Surr: 2,4,6-Tribromophenol
Fax (801}263-8687 Surr: 2-Fluorobiphenyl
email: [e-mail] Surr: 2-F1uorophenol
Surr: Nitrobenzene-d5
Kyle F. Gross
Laboratory Director
Surr: Phenol-d6
Surr: Terphenyl-d14
CAS
Number
87-86-5
85-01-8
108-95-2
129-00-0
110-86-1
118-79-6
321-60-8
367-12-4
4165-60-0
13127-88-3
1718-51-0
Library search requiredfor 4-ch!orophellol. 1011 chromatogram search 1I0t detected.
Jose Rocha
QA Officer
Reporting Analytical
Limit Result Qual
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
10.0 < 10.0
14-159 85.8
10-124 29.9
10-106 29.9
10-180 45.4
10-122 32.8
10-199 101
Report Date: 8/1712010 Pagc250f70
AUanatyses applicable to the CWA, SDWA. and RCRA are performed In acconlance to NELAC protocols. Penlnent sampling Infonnallon Is located on the anached COCo This "'pon Is proVided forti .. exciuslve use of the
addressee. PrMlel!'" of subsequent use of lhe name of Ihls company or any member of lis staff, or reprodncllon ofthl. ,epott In co,meellon with Ihe advenisement, promotion Of sale of any prodUCI or process, or In connecllon
wllh the re·publlcatlon of this .. pan fo, any purpooe other than fo, the addressee will be granted only on contact. This company accepts no ''''fIOnslblllty except for the due performance of Inspection andJor analysis In good faith
and according to the rules or1he trade and ohc1ence.
A
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City. VT
84115
[phone]
Toll Free [phone]
Fax [phone]
email: [e-mail]
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-007 A
Client Sample ID: Slimes 65
Collection Date: 8/3/2010 1050h
Received Date:
Method Used:
Analytical Results
8/5/2010 1000h
SW8260C
Units: f.Lg/L
Dilution Factor: 10
Compound
T etrah ydrofuran
Surr: 1,2-Dichloroethane-d4
Surr: 4-Bromotluorobenzene
Surr: Dibromotluoromethane
Surr: Toluene-d8
Tire reportil/g limits were raised d1le to sample matrix interferences.
Contact: Jo Ann Tischler
Analyzed: 8/5/2010 2244h
VOAs by GC/MS Method 8260CIS030C
CAS Reporting Analytical
Number Limit Result Qual
109-99-9 10.0 < 10.0
17060-07-0 77-144 104
460-00-4 80-123 102
1868-53-7 80-124 98.1'
2037-26-5 80-125 101
Report Date: 8117/2010 Page 32 01'70
All anal)"". applicable 10 the CWA. SDWA. and RCRA are performed in acconlance 10 NELAC prolocol •. Pertinent sampling information Is localed on the anached COCo This report Is provided for the excioslve ose of the
addressee. Privileges of subsequent use of the name of this company or any member of Its 5lafT. or reproduction of this repon In connecUon with the advertisement, promotion or sale of any product or process, or In connectLon
wllh Ihe re·publlcalion of this report for any purpose other Ihan for Ihe addressee will be granted only on contac\. This company accepts no respunslbility excepl for Ihe due performance of IMpection and/or analysis In good faith
and according 10 the rules of the trade and of science.
EN:RGY
~i\ !I I {,.\ 1': I II:-~-rm" www.enerlYleb.com
""'~"'1lV
Helena, /IT '77-472~711 • 8illlnls, /IT sal·735-44 •• • Casper, WY .... 23$·1515
Gillette, 'Iff ....... ·7115 • Rapid City, SO •• 1-172·1225 • CoII8I8 Station, TX ...... 11-221.
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
Annual Tailings Sample
C 10080205-008
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: 1,2-0ichlorobenzene-d4
Surr: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
RL -Analyte reporting limit.
OCL -Quality control limit.
Result
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
102
99.0
103
86.0
Units
uglL
uglL
uglL
uglL
uglL
uglL
uglL
ug/L
uglL
uglL
%REC
%REC
%REC
%REC
Qualifiers Rl
20
1.0
1.0
1.0
1.0
20
1.0
1.0
1.0
1.0
80-120
70-130
80-120
80-120
Report Date: 09/09/10
Collection Date: 08/03/10
DateRacalved: 08/05/10
Matrix: Aqueous
MeL!
QCl Method Analysis Date I By
SW8260B 08/09/10 13:57 I jlr
SW8260B 08/09/10 13:57 Ijlr
SW8260B 08/09/10 13:57 I jlr
SW8260B 08/09/10 13:57 I jlr
SW8260B 08/09/1013:571 jlr
SW8260B 08/09/1013:571 jlr
SW8260B 08/09/1013:571 jlr
SW8260B 08/09/10 13:57 I jlr
SW8260B 08/09/10 13:57 I jlr
SW8260B 08/09/10 13:57 I jlr
SW8260B 08/09/10 13:57 I jlr
SW8260B 08109/1013:571 jlr
SW8260B 08/09/1013:571 jlr
SW8260B 08/09/10 13:57 I jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 18 of 39
A
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
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings
1008101-008A
Client Sample ID: Trip Blank
Collection Date: 8/3/2010
Received Date:
Method Used:
Analytical Results
Units: ~glL
Dilution Factor: 1
Compound
Tetrah ydrofuran
8/5/2010 l000h
SW8260C
Surr: 1,2-Dichloroethane-d4
Surr: 4-Bromofluorobenzene
Surr: Dibromofluoromethane
Surr: Toluene-d8
Contact: Jo Ann Tischler
Analyzed: 8/9/2010 1351h
VOAs by GC/MS Method 8260CI5030C
CAS Reporting Analytical
Number Limit Result Qual
109-99-9 1.00 < 1.00
17060-07-0 77-144 104
460-00-4 80-123 103
1868-53-7 80-124 98.3
2037-26-5 80-125 100
Report Date: 8/17/2010 Page 33 of70
All anaty.es applicable 10 lhe CWA, SDWA, and RCRA are performed In accordance 10 NELAC prolocols. PenJnenl samplinglnronnatlon Is localed on Ibe anached COCo This report Is proVided For lhe exciuslve use oFlhe
addreMee. Privileges of subsequent use of the name of this company or any member of Its staff. or reproduction of (his report In connection with the advertlsement. promotion or sale of any product (K" process. or In connecUon
wllh Ibe re·publicatlon of Ihls repoll For any purpose olber Ihan ror lhe addressee will be grnnled only on conlacl. This company accepts no responslblilly excepl For Ibe due perfo"""nce or Inspection andlor analysIs In good rallh
and according 10 the rules of the trade and of science.
EN:RGY
L;\~ .. .-~n iul,1 (·'[~I .-
Heiena, MT 177-472-0711 -Bllllnls, MT 111·735-441.-Cuper, W't 1.1-235-1515
Gillette, W'f 111-111·7175 -Rapid City, SO 1'1-112-1225 -CelII,1 Station, TX 1.1-I11t-221.
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
Annual Tailings Sample
C10080205-009
Client Sample 10: Temp Blank
Analyses Result Unit.
PHYSICAL PROPERTIES
Temperature
Report
Definitions:
Rl -Analyte reporting limit.
OCl • Quality control limit.
2.0 "C
Quallflel'll RL
Report Date: 09/09/10
Collection Date: 08/03/10
DateRecelved: 08/05/10
Matrix: Aqueous
MCU
OCL Method Analysis Date 1 By
E170.1 08/05/1009:001 kbh
Mel· Maximum contaminant level.
NO • Not detected at the reporting limit.
Page 19 of 39
EN:RGY
I /\~ :(.J[ '/\ r' ::hl ,'-
Helena, NT 117--412-0711 • BIUIDIS, NT 111-731-44" • Casper, W'( 111-235-1115
Gilletta, W'( 111-111-7175 • Rapid City, so 1.1-.72-1225 • Coriell Station, 1X 11 ..... 0-221.
ANALYTICAL SUMMARY REPORT
September 09, 2010
Denison Mines USA Corp
6425 S Hwy 191
Blanding, UT S4511
Workorder No.: C10080205
Project Name: Annual Tailings Sample
Quote 10: C1640· POC Wells
Energy Laboratories, Inc. received the following 9 samples for Denison Mines USA Corp on S/5/2010 for analysis.
Sample 10 Client Sample 10 Collect Date Receive Date Matrix Test
C100S0205-001 Cell 1 08/03/10 09 :05 08/05/1 0
C100S0205-002 Cell 2 Slimes 08/03/10 10:50 08/05/10
C10080205-003 Cell 2 LOS OS/03/10 12:50 08/05/10
C100S0205-004 Cell 3 08/03/10 14:50 08/05/10
C100S0205-005 Cell4A 08/03/10 13 :50 08/05/10
C100S0205-006 Cell4A LOS 08/03/10 13:40 OS/05/10
C10080205-007 Slimes 65 OS/03/10 10:50 08/05/10
Aqueous Metals by ICP/ICPMS, Dissolved
Acidity, Total as CaC03
Alkalinity
QA Calculations
Chloride
Fluoride
Nitrogen, Ammonia
Nitrogen, Nitrate + Nitrite
pH
Gross Alpha minus Rn222 and
Uranium
Solids, Total Dissolved
Sulfate
SW8260B VOCs, Standard List
Aqueous Same As Above
Aqueous Metals by ICP/ICPMS, Dissolved
Alkalinity
QA Calculations
Chloride
Fluoride
Nitrogen, Ammonia
Nitrogen, Nitrate + Nitrite
pH
Gross Alpha minus Rn222 and
Uranium
Solids, Total Dissolved
Sulfate
SW8260B VOCs, Standard List
Aqueous Metals by ICP/ICPMS, Dissolved
Acidity, Total as CaC03
Alkalinity
QA Calculations
Chloride
Fluoride
Nitrogen, Ammonia
Nitrogen, Nitrate + Nitrite
pH
Gross Alpha minus Rn222 and
Uranium
Solids, Total Dissolved
Sulfate
SW8260B VOCs, Standard List
Aqueous Same As Above
Aqueous Same As Above
Aqueous Same As Above
Page 1 of 39
EI\ERGY
(../\:.-1D(;')' r '.)1<,11_'::-..
www.energylab.com
.,.".. EaIIMcf.Dlcl till
Helena, lIT 177~7Z-G711 • Bllllnls, lIT 881-735-44" • Caspet, WY 181-235-1515
Gillette, WY '1"'116-7175 • Rapid City, SD 111-172-1225 • College Station, 1X 881-118-2211
ANAL VTICAL SUMMARY REPORT
C10080205-008 Trip Blank 08/03/10 00:00 08/05/10 Aqueous SW8260B VOCs, Standard List
C10080205-009 Temp Blank 08/03/1 0 00 :00 08/05/10 Aqueous 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 OA/OC 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: 0¥~£) WcJ.~
Reporting Supervisor
Digitally signed by
Stephanie Waldrop
Date: 2010.09.09 15:29:12 -06:00
Page 2 of 39
Helena, lIT 177-.412-0111 • Bllllnls, lIT IGI·735-4411 -Cuper, WY 111-23H515
Gillette WY 166·186·7175 • Ra Id C SO 118-172·1225 -Colle 8 Station TX UI-&IG-22t1
CUENT: Denison Mines USA Corp
Project: Annual Tailings Sample Report Date: 09/09/10
Sample Delivery Group: C10080205 CASE NARRATIVE
ORIGINAL SAMPLE SUBMITTAL(S)
All original sample submittals have been returned with the data package.
SAMPLE TEMPERATURE COMPLIANCE: 4"C (±2"C)
Temperature of samples received may not be considered properly preserved by accepted standards. Samples that are hand
delivered immediately after collection shall be considered acceptable if there is evidence that the chilling process has begun.
GROSS 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.
SOIUSOLlD 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 NO (not detected). the sample meets EPA compliance criteria for
PCB monitoring.
SUBCONTRACTING ANALYSIS
Subcontracting of sample analyses to an outside laboratory may be required. If so, ENERGY LABORATORIES will utilize its
branch laboratories or qualified contract laboratories for this service. Any such laboratories will be indicated within the
Laboratory Analytical Report.
BRANCH LABORATORY LOCATIONS
eli-b· Energy Laboratories, Inc. -Billings, MT
eli-g • Energy laboratories, Inc. -Gillette, WY
eli-h -Energy Laboratories, Inc. -Helena, MT
eli-r -Energy Laboratories, Inc. -Rapid City, SO
ell-t -Energy laboratories, Inc. -College Station, TX
CERTIFICATIONS:
USEPA: WY00002, Radiochemical WY00937; FL-DOH NELAC: E87641, Radiochemical E871 017; Califomia: 02118CA;
Oregon: WY200001; Utah: 3072350515; Virginia: 00057; Washington: C1903
ISO 17025 DISCLAIMER:
The results of this Analytical Report relate only to the items submitted for analysis.
ENERGY LABORATORIES, INC. -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 30f39
EN:RGY
'_i\L~()I'/ 1 ~1 ~I '_f ...
Client: Denison Mines USA Corp
Project: Annual Tailings Sample
Halena, lIT 177-412-11711 • Billinll, lIT 111-731-4411 • Casper, WY .11-231-1515
GIllItts, WY 11&-111-7171 • Rapid CIIJ, SD 118-172-1225 • CoIlaga Station, 1X IIW11I-221.
QA/Qe Summary Report
Report Date: 09/09/10
Work Order: C 1 0080205
Analyte Count Result Units RL %REC Low Umlt High Umlt RPD RPDUmlt Qual
Method: A2310 B
SamplelD: MBLK-1_100816
Acidity, Total as CaC03
SamplelD: LC5-1_100816
Acidity, Total as CaC03
SamplelD: C10080116-007ADUP
Acidity, Total as CaC03
Qu_IIflers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
Method Blank
NO mg/L
Laboratory Control Sample
1050 mglL
Sample Duplicate
76.0 mglL
Run: ACIOITY_100816A
Run: ACIOITY_100816A
5.0 105 80 120
Run: ACIOITY_100816A
5.0
NO -Not detected at the reporting limit.
Batch: 100816_1_ACID-W
08/16/10 09:59
5.4
08/16/1010:09
08/16/10 00:00
20
Page 20 of 39
EN:RGY
,_ '\i.r )(f~·'TClnl-C":'"
Client: Denison Mines USA Corp
Project: Annual Tailings Sample
Halena, lIT 177-472-41711 • BlllinlS, lIT 101·735-441 •• Cuper, ,,"111-235-1515
Glllllia, W'f 11&-111·7175 • Rapid City, SD 1.1·172·1225 • Colllla Station, TX 111-111-2211
QA/QC Summary Report
Report Date: 09/09/10
Work Order: C10080205
Analyle Count Result Units RL °kREC Low Limit High Limit RPO RPOLlmlt Qusl
Method: A2320 B
Sample 10: MBLK 3 Method Blank
Alkalinity, Total as CaC03 1 mg/L
Carbonate as C03 NO mg/L
Bicarbonate as HC03 2 mglL
Sample 10: LCS1 Laboratory Control Sample
Alkalinity, Total as CaC03 211 mgIL
SamplelO: C1008021Q..OOSADUP 3 Sample Duplicate
Alkalinity, Total as CaC03 309 mg/L
Carbonate as C03 20.7 mg/L
Bicarbonate as HC03 334 mg/L
Sample 10: C10080210-00aAMS Sample Matrix Spike
Alkalinity, Total as CaC03 439 mg/L
Method: A2320 B
SamplelO: MBLK 3 Method Blank
Alkalinity, Total as CaC03 NO mg/L
Carbonate as C03 NO mg/L
Bicarbonate as HC03 NO mg/L
Sample 10: LCS1 Laboratory Control Sample
Alkalinity, Total as CaC03 196 mgIL
Sample 10: C10080205-007ADUP 3 Sample Duplicate
Alkalinity, Total as CaC03 NO mg/L
Carbonate as C03 NO mg/L
Bicarbonate as HC03 NO mglL
Qualifiers:
RL -Analyle reporting limit.
MDC -Minimum detectable concentration
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
Run: MANTECH_100812A
Run: MANTECH_100812A
105 90 110
Run: MANTECH_l00812A
Run: MANTECH_l00812A
107 80 120
Run: TTR-ALK_l00816A
Run: TTR-ALK_l00816A
98 90 110
Run:TTR-ALK_l00816A
NO -Not detected at the reporting limit.
0.2
1.1
Batch: R136040
08/1211011 :19
08/12110 11 :35
08/12110 13:55
10
10
10
08/1211014:04
Batch: 100816_1_ALK-W
08/16/1009:15
08/16/10 09:29
08/16/1009:31
10
10
10
Page 21 of 39
EN:RGY Hllen., lIlT 177-472-1711 • Bllllnll, lIlT 1G1-735-441. • Clsper, W't 111-235-151.
'_,,,\1 !'..:>rf;"> I (.)IJI-_C, GllllIIte, WY 111-1"-7175 • Rapid City, SD 111-172-1225 • Colitis Slltlon, TX ..... 10.221.
QA/QC Summary Report
Client: Denison Mines USA Corp
Project: Annual Tailings Sample
Analyle Count
Method: A2540 C
Re.ult Units
SamplelD: MBLK1_100809 Method Blank
Solids, Total Dissolved TDS@ 180 C NO mgIL
SamplelD: LCS1_100809 Laboratory Control Sample
Solids, Total Dissolved TDS @ 180 C 995 mg/L
SamplelD: C1008021G-004AMS Sample Matrix Spike
Solids, Total Dissolved TDS@ 180 C 2260 mg/L
SamplelD: C1008021Q.004AMSD Sample Matrix Spike Duplicate
Solids, Total Dissolved TDS@ 180 C 2290 mg/L
Qualifiers:
RL -Analyte reporting limit.
Moe -Minimum detectable concentration
Report Date: 09/09/10
Work Order: C1008020S
RL %REC Low Limit High Limit RPD RPDLlmlt Qual
Batch: 100809_1_SLDS-TDS·W
Run: BAL-1_100809A 08/09/1012:13
10
Run: BAL-1_100809A 08/09/1012:13
10 99 90 110
Run: BAL-1_100809A 08/09/1012:19
10 99 90 110
Run: BAL-l_100809A 08/09/1012:20
10 99 90 110 1.7 10
NO -Not detected at the reporting limit.
Page 22 of 39
EN:RGY
< ..... :' .. ::C'f U~l C:-PI,. "I
Client: Denison Mines USA Corp
Project: Annual Tailings Sample
Haltnl, lIT 877-472-8711 -Bllllnls, lIT BGI-13I-4481 -Casper, WY 118-235-1515
GlIlIItte, WY 111-111-7175 -Rapid City, SD 111-172-1225 -CoII1I8 SlItIon, 1X 111-111-2211
QA/Qe Summary Report
Report Date: 09/09/10
Work Order: C100B0205
Analyle Count Re.ult Units RL %REC Low Limit High Limit RPO RPOLlmlt Qual
Method: A45OO-C1 B
Sample 10: MBLK8-100824C
Chloride
Sample 10: C10080083-002AMS
Chloride
Samp/eIO: C10080083-002AMSO
Chloride
Sample 10: LCS35-100824C
Chloride
auiliners:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
Method Blank
ND mgll
Sample Matrix Spike
848 mg/L
Sample Matrix Spike Duplicate
869 mglL
Laboratory Control Sample
3540 mg/L
Run: TITRATION_100824A
0.5
Run: TITRATION_100824A
1.0 92 90 110
Run: TITRATION_100824A
1.0 98 90 110
Run: TITRATION_100824A
1.0 100 90 110
ND -Not detected at the reporting limit.
Batch: 100824C-CL-TTR-W
08/24110 09:25
08/24/1 0 1 0 :30
08/2411 0 1 0 :32
2.4 10
08/24/10 11 :21
Page 23 of 39
EN:RGY
_!'I ... r .... j. " T ~-!I ,":'~
www.energyfab.com
~"""'SIRI ,m Helena, lIT 177-472-0711 • Bllllnll, lIT 111-735-4411 • Casper, WY 111-235-1515
Gillette, WY 111-1"-7175 • Rapid City, SD 111-172-1225 • College Station, TX 111-110-2211
QA/QC Summary Report
Client: Denison Mines USA Corp Report Date: 09/09/10
Project: Annual Tailings Sample Work Order: C10080205
Analyte Count Result Units RL %REC Low LImit High LImit RPO RPOLlmlt Qual
Method: A4500-FC Batch: R135989
Sample 10: MBLK Method Blank Run: MANTECH_100811A 08/11/1010:15
Fluoride NO mglL 0.05
SamplelO: LCS Laboratory Control Sample Run: MANTECH_1 00811 A 08/11/1010:17
Fluoride 0.980 mglL 0.10 98 90 110
Sample 10: C10080205-003AMS Sample Matrix Spike Run: MANTECH_100811A 08/11/10 15:08
Fluoride 1.24 mglL 0.10 84 80 120
Sample 10: C10080205-003AMSO Sample Matrix Spike Duplicate Run: MANTECH_100811A 08/11/1015:11
Fluoride 1.24 mglL 0.10 84 80 120 0 10
Method: A4500-FC Batch: R136144
Sample 10: MBLK Method Blank Run: MANTECH_100817A 08/17/10 07:54
Fluoride NO mg/L 0.05
SamplelO: LCS Laboratory Control Sample Run: MANTECH_100817A 08/17/1007:57
Fluoride 1.00 mg/L 0.10 100 90 110
Sample 10: C10080543-002AMS Sample Matrix Spike Run: MANTECH_100817A 08/17/1012:14
Fluoride 1.28 mg/L 0.10 85 80 120
Sample 10: C10080543-002AMSO Sample Matrix Spike Duplicate Run: MANTECH_100817A 08/17/1012:16
Fluoride 1.31 mg/L 0.10 88 80 120 2.3 10
Qualifiers:
RL • Analyte reporting limit. NO • Not delected al the reporting limit.
MDC • Minimum detectable concentration
Page 24 of 39
EN:RGY
:.-f~ -,()I (/\ I 01 ~II-_~
www.energlab.com
AItII/IJa/ EIrd'IIa ac. 1m
Helena,lIT 877-472-11711 • BUlin •• , lIT 101-735-4481 • Cuper, WY 811-235-851'
GIlIIItte, WY 111-1"-7175 • Rapid City, SD 181-172-1225 • CoIle,e Station, IX 811-111)..2211
QA/Qe Summary Report
Client: Denison Mines USA Corp
ProJect: Annual Tailings Sample
Report Date: 09/09/10
Work Order: C10080205
Analyle Count Reault Units RL %REC Low Limit High Limit RPO RPOLlmlt Qual
Method: A4500-H B
Sample 10: ICV1_100806_1
pH
Method: A450G-H B
Sample 10: C10080206-001ADUP
pH
QuaUflers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
Initial Calibration Verification Standard
6.71 S.u. 0.010 98
Sample Duplicate
7.18 S.u. 0.010
98
Analytical Run: ORION555A-2_100806A
08/06/10 13:02
102
Run: ORION555A-2_100806A 08/06/10 13:31
10 1.1
NO -Not detected at the reporting limit.
Page 25 of 39
EN:RGY
, /\(·~(_-"'11/~r ()[JIC::
Client: Denison Mines USA Corp
Project: Annual Tailings Sample
Helena, MT 177-472-0711 • Billings, MT 101·731-4411 • Cuper, WY 111-235-1515
Gillette, WY 111·111·7171 • Rapid City, SD 111-172·1225 • Collage Station, 1X 111-&1102211
QA/QC Summary Report
Report Date: 09/09/10
Work Order: C10080205
Analyl. Count R •• ult Unite RL %REC Low Limit High Limit RPD RPDLlmlt Qual
Method: A45OO-NH3 G
Sample ID: MBLK·1
Nitrogen, Ammonia as N
Sample ID: LCS·2
Nitrogen, Ammonia as N
SamplelD: C10080636-001EMS
Nitrogen, Ammonia as N
SamplelD: C10080636-001EMSD
Nitrogen, Ammonia as N
Qualifiers:
RL • Analyte reporting limit.
MDC • Minimum detectable concentration
Method Blank
ND mg/L
Laboratory Control Sample
19.4 mg/L
Sample Matrix Spike
2.04 mglL
Sample Matrix Spike Duplicate
2.06 mglL
Run: TECHNICON_1 00824A
0.02
Run: TECHNICON_100824A
0.50 97 80 120
Run: TECHNICON_100824A
0.050 101 80 120
Run: TECHNICON_100824A
0.050 102 80 120
ND • Not detected at the reporting limit.
Batch: R136418
08/24/1015:16
08/24/1015:18
08/24/10 16:34
08/24/1 0 16 :36
20
Page 26 of 39
EN:RGY
1,/" ~.~rl/\l()r<I -~
www.entrgyllb.com
MI/tIIaI ExaIINasw. 1m
Halenl, lIT 177-412-0711 • Bllllnll, lIT 101-735-441. • Caspar, WY .11-235-1115
Gillette, WV 111-111-7175 • Rapid City, SO .11-172-1225 • Collage Station, 1X 11 ... 10-2211
QA/Qe Summary Report
Client: Denison Mines USA Corp
Project: Annual Tailings Sample
Analyle Count Result Units
Method: A4SGO-S04 E
SlmplelD: LCS-C100825
Sulfate
SamplelD: MBLK·1_'00825
Sulfate
SamplelD: C10080205-003AMS
Sulfate
Sample ID: C10080205-003AMSD
Sulfate
Method: A4500-S04 E
SamplelD: TURBSTD-'_'0083'
Sulfate
SamplelD: MBLK·C100831
Sulfate
SamplelD: LCS·1_'00831
Sulfate
au.llller.:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
Laboratory Control Sample
5020 mglL
Method Blank
ND mglL
Sample Matrix Spike
2720 mg/L
Sample Matrix Spike Duplicate
2750 mglL
Performance Evaluation Mix
27.6 mglL
Method Blank
ND mglL
Laboratory Control Sample
4990 mglL
Report Date: 09/09/10
Work Order: C 1 0080205
RL %REC Low Limit High Limit RPD RPDLlmlt Qual
Batch: 100B25_1_S04-TURB-W
Run: TURB-2_100B25A OB/25/10 14:18
100 105 90 110
Run: TURB-2_100B25A OB/25/10 14:20
0.8
Run: TURB-2_100825A OB/25/10 14:49
50 97 90 110
Run: TURB-2_100825A OB/25/10 14:51
50 101 90 110 1.3 10
Batch: 100831 _1_S04-TURB-W
Run: TURB-2_100B31A OB/31/10 12:54
1.0 100 90 110
Run: TURB-2_100B31A OB/31/10 13:02
O.B
Run: TURB-2_100831A 08/31/1013:05
100 104 90 110
ND -Not detected at the reporting limit.
Page 27 of 39
EI\ERGY
L," )t l Ui.' OI}I·_~·
www.enerD1ab.com ..",..r..-...,.. 11ft
Helenl, lIT ,77-472-G711 • Billings, lIT 111-735-4411 • Casper, WY •• 1-235-1515
Gllltlta, WY .11 .... -7175 • Rapid City, SD '.1-172-1225 • CoIlslS Slltlon, IX ...... 10-221.
QA/QC Summary Report
Client: Denison Mines USA Corp
Project: Annual Tailings Sample
Amllyte Count Result Units
Method: E200.7
Semple 10: MB-100810A 6 Method Blank
Calcium NO mg/L
Iron NO mg/L
Magnesium NO mg/L
Potassium NO mg/L
Sodium NO mg/L
Zinc 0.002 mg/L
Semple 10: LFB-100810A 6 Laboratory Fortified Blank
Calcium 47.0 mg/L
Iron 0.930 mg/L
Magnesium 47.6 mg/L
Potassium 43.8 mg/L
Sodium 46.4 mg/L
Zinc 0.960 mg/L
SamplelO: C10080205-005BMS2 6 Sample Matrix Spike
Calcium 10400 mg/L
Iron 3080 mg/L
Magnesium 14500 mg/L
Potassium 10600 mg/L
Sodium 21000 mg/L
Zinc 411 mg/L
SIImplelO: C10080205-005BMSO 6 Sample Matrix Spike Duplicate
Calcium 10300 mg/L
Iron 3050 mg/L
Magnesium 14600 mg/L
Potassium 10400 mg/L
Sodium 21400 mg/L
Zinc 415 mg/L
Qualifiers:
AL -Analyte reporting limit.
NO -Not detected at the reporting limit.
Report Date: 09/09/10
Work Order: C1008020S
RL %REC Low Limit High Limit RPO RPOLlmlt QUII
Batch: R135929
Run: ICP2-C_l00810A 08/10/10 12:07
0.2
0.002
0.05
0.02
0.3
0.001
Run: ICP2-C_l00810A 08/10/10 12:11
0.50 94 85 115
0.030 93 85 115
0.50 95 85 115
0.50 88 85 115
0.50 93 85 115
0.010 96 85 115
Run: ICP2-C_l00810A 08/10/1015:53
46 96 70 130
0.31 70 130 A
10 94 70 130
3.9 90 70 130
58 100 70 130
0.30 96 70 130
Run: ICP2-C_l00810A 08/10/10 15:57
46 95 70 130 1.4 20
0.31 70 130 . 20 A
10 95 70 130 0.1 20
3.9 87 70 130 2.3 20
58 103 70 130 1.7 20
0.30 97 70 130 0.9 20
A • The analyte level was greater than four times the spike level. In
accordance with the method % recovery is not calculated.
MDC • Minimum detectable concentration
Page 28 of39
EN:RGY
_ .. ,\,: ~)Hj\l O P I:-~
www.eneroteb.com
,.",.. &aIIII:w JIIcI IIIZ
Helen., lIT 877-472-41711 • Billings, lIT .1-735-4411 • Casper, WY 111-23&-1515
GIllIIIta, WY 111-111-7175 • Rapid City, SD 111-172-1225 • CoIlelD SIJtion, 1X 111-1110221.
QA/QC Summary Report
CUent: Denison Mines USA Corp Report Date: 09/09/1 0
Project: Annual Tailings Sample Work Order: C100a020S
. Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLlmlt Qual
Method: E2OO.7 Batch: R136584
Semple 10: MB-l00827A 4 Method Blank Run: ICP2-C_100827A 08/27/1014:47
Calcium ND mg/L 0.2
Magnesium ND mg/L 0.05
Potassium ND mg/L 0.02
Sodium ND mg/L 0.3
Semple 10: LFB-l00827A 4 Laboratory Fortified Blank Run: ICP2-C_l00827A 08/27/1014:51
Calcium 49.0 mg/L 0.50 98 85 115
Magnesium 49.4 mg/L 0.50 99 85 115
Potassium 45.0 mg/L 0.50 90 85 115
Sodium 48.2 mg/L 0.50 96 85 115
Semple ID: Cl0080205-002BMS2 4 Sample Matrix Spike Run: ICP2-C_l00827A 08127/1016:30
Calcium 2840 mg/L 11 92 70 130
Magnesium 6140 mg/L 2.6 92 70 130
Potassium 2930 mg/L 1.0 91 70 130
Sodium 7380 mg/L 14 102 70 130
Sample 10: Cl0080205-002BMSO 4 Sample Matrix Spike Duplicate Run: ICP2-C_l00827A 08/27/1016:34
Calcium 2920 mg/L 11 95 70 130 2.8 20
Magnesium 6200 mg/L 2.6 94 70 130 0.9 20
Potassium 2900 mg/L 1.0 90 70 130 0.9 20
Sodium 7360 mg/L 14 102 70 130 0.2 20
auellflers:
RL -Analyie reporting limit. NO -Not detected at the reporting limit.
MDC -Minimum detectable concentration
Page 29 of 39
EN:RGY
. /\'1r:1 .. ,·.tC'J/:·~
Helena, MY 177-472-0711 • BlllinlS, MY 1G1·735-44,. • Casper, WY •• I-Z35-1515
Glllltte, WV •• 1-... ·7175 • Rapid City, SD •• 1-172·1225 • Collel! Station, IX •• 1-111-221 •
QA/QC Summary Report
Client: Denison Mines USA Corp Report Date: 09/09/10
Project: Annual Tailings Sample Work Order: C 10080205
Analyle Count Relult Units RL %REC Low Limit High Limit RPO RPOLlmlt Qual
Method: E200.8 Batch: R135878
Sample 10: LRB 18 Method Blank Run: ICPMS2-C_100809A 08/09/10 14:23
Arsenic NO mg/L 6E-05
Beryllium NO mg/l 3E.Q5
Cadmium NO mg/l 1E·05
Chromium 6E.Q5 mg/l 4E·05
Cobalt NO mg/L 2E-05
Copper NO mg/l 7E-05
lead NO mg/l 3E-05
Manganese NO mg/l 5E-05
Mercury NO mg/l 8E.Q5
Molybdenum NO mg/l 5E-05
Nickel NO mg/l 0.0007
Selenium 0.0003 mg/L 0.0002
Silver NO mgll 3E.Q5
Thallium NO mgll 1E·05
Tin NO mg/l 6E-05
Uranium NO mg/l 1E-05
Vanadium 4E.Q5 mg/l 3E-05
Zinc NO mg/l 0.0003
Sample 10: LFB 18 laboratory Fortified Blank Run: ICPMS2-C_100809A 08/09/10 14:30
Arsenic 0.0539 mg/l 0.0010 108 85 115
Beryllium 0.0514 mg/l 0.0010 103 85 115
Cadmium 0.0538 mg/l 0.0010 108 85 115
Chromium 0.0532 mg/l 0.0010 106 85 115
Cobalt 0.0536 mg/l 0.0010 107 85 115
Copper 0.0526 mg/l 0.0010 105 85 115
Lead 0.0527 mg/L 0.0010 105 85 115
Manganese 0.0537 mg/l 0.0010 107 85 115
Mercury 0.00530 mg/L 0.0010 106 85 115
Molybdenum 0.0533 mg/l 0.0010 107 85 115
Nickel 0.0523 mg/l 0.0010 105 85 115
Selenium 0.0538 mg/l 0.0010 107 85 115
Sliver 0.0222 mg/l 0.0010 111 85 115
Thallium 0.0526 mg/L 0.0010 105 85 115
Tin 0.0531 mg/l 0.0010 106 85 115
Uranium 0.0527 mgll. 0.00030 105 85 115
Vanadium 0.0532 mg/L 0.0010 106 85 115
Zinc 0.0551 mg/L 0.0010 110 85 115
Sample 10: C10080242~2BMS4 18 Sample Matrix Spike Run: ICPMS2-C_10OB09A 08/1011005:47
Arsenic 0.0514 mg/l 0.0010 103 70 130
Beryllium 0.0537 mg/L 0.010 107 70 130
Cadmium 0.0497 mg/L 0.010 99 70 130
Chromium 0.0493 mgll 0.0010 98 70 130
Cobalt 0.0479 mgIL 0.010 96 70 130
auallflers:
Rl -Analyte reporting limit. NO -Not detected at the reporting limit.
MDC -Minimum detectable concentration
Page 30 of 39
EN:RGY
_,'\ ~('n/,>l OPI"--,
~­~ www.energytab.com
AM/tfIaI r...... SIrcf 'Bl
Helena, lIT 177-472-8711 -Billings, lIT 101-735-4411 -Cuper, WY 111-235-1515
Gllillta, WY 111-111-7175 -Rapid City, SD IS1-172-1225 -Collage Station, 1X 1.1-1111-221.
QA/Qe Summary Report
Client: Denison Mines USA Corp
Project: Annual Tailings Sample
Analyle Count Result Units
Method: E200.8
Sample 10: C10080242-OG2BMS4 18 Sample Matrix Spike
Copper 0.0487 mglL
Lead 0.0496 mglL
Manganese 0.0536 mg/L
Mercury 0.00506 mglL
Molybdenum 0.0497 mglL
Nickel 0.0494 mglL
Selenium 0.0517 mglL
Silver 0.0102 mglL
Thallium 0.0491 mg/L
Tin 0.0488 mg/L
Uranium 0.0535 mglL
Vanadium 0.0493 mg/L
Zinc 0.0499 mglL
Sample 10: C10080242-OG2BMSO 18 Sample Matrix Spike Duplicate
Arsenic 0.0524 mg/L
Beryllium 0.0549 mg/L
Cadmium 0.0511 mg/L
Chromium 0.0499 mglL
Cobalt 0.0488 mg/L
Copper 0.0500 mgIL
Lead 0.0510 mglL
Manganese 0.0543 mg/L
Mercury 0.00522 mglL
Molybdenum 0.0518 mglL
Nickel 0.0503 mgIL
Selenium 0.0524 mglL
Silver 0.0153 mgIL
Thallium 0.0506 mgIL
Tin 0.0512 mg/L
Uranium 0.0545 mglL
Vanadium 0.0500 mgIL
Zinc 0.0506 mgIL
Qualifiers:
RL • Analyte reporting limit.
MDC • Minimum detectable concentration
S • Spike recovery outside of advisory limits.
Report Date: 09/09/10
Work Order: C10080205
RL %REC Low Limit High Limit
Run: ICPMS2·C_100809A
0.010 97 70 130
0.0010 99 70 130
0.010 97 70 130
0.0010 101 70 130
0.0010 99 70 130
0.0010 99 70 130
0.0010 103 70 130
0.010 51 70 130
0.0010 98 70 130
0.0010 98 70 130
0.00030 106 70 130
0.0010 98 70 130
0.010 99 70 130
Run: ICPMS2·C_100809A
0.0010 105 70 130
0.010 110 70 130
0.010 102 70 130
0.0010 99 70 130
0.010 97 70 130
0.010 99 70 130
0.0010 102 70 130
0.010 98 70 130
0.0010 104 70 130
0.0010 103 70 130
0.0010 101 70 130
0.0010 104 70 130
0.010 77 70 130
0.0010 101 70 130
0.0010 102 70 130
0.00030 108 70 130
0.0010 99 70 130
0.010 100 70 130
ND • Not detected at the reporting limit.
R • RPD exceeds advisory limit.
RPO RPOLlmlt Qual
Batch: R135878
08/10/1005:47
S
08/10/10 05:53
1.9 20
2.3 20
2.8 20
1.2 20
1.8 20
2.6 20
2.6 20
1.3 20
3.1 20
4.1 20
2 20
1.4 20
40 20 R
3 20
4.8 20
1.9 20
1.4 20
1.3 20
Page 31 of 39
EN:RGY
l i' I ~("I ,',.1 r: 1'1:_ ";
www.enerolab.com
,."",.flallMSia flU
Halena, lIT 177-472-11711 • Bllllnll, lIT 1G1-731-4411 • Casper, WY 1.1-23 .. 1515
Gillette, WY .II-IU-7175 • Rapid City, SD .1"172-1225 • Collels Station, IX 111-11102211
QA/QC Summary Report
Client: Denison Mines USA Corp Report Date: 09/09/10
Project: Annual Tailings Sample Work Order: C10080205
Analyle Count Result Units RL %REC Low Umlt HlghUmlt RPO RPOUmlt Qual
Method: E200.B Batch: R136388
Sample 10: LRB Method Blank Run: ICPMS2-C_l00823A 08/23/10 14:59
Sliver NO mgIL 3E-05
Sample 10: LFB Laboratory Fortified Blank Run: ICPMS2-C_l00823A 08/23/10 15:05
Silver 0.0207 mg/L 0.0010 104 85 115
Sample 10: C100B0759-001CMS4 Sample Matrix Spike Run: ICPMS2-C_l00823A 08/23/10 18:09
Silver 0.0188 mg/L 0.010 94 70 130
Sample 10: C100B075g.()01CMSD Sample Matrix Spike Duplicate Run: ICPMS2-C_l00823A 08/23/10 18:16
Silver 0.0195 mg/L 0.010 97 70 130 3.7 20
Method: E200.B Batch: R136517A
Sample 10: C100B0752.0Q8CMS4 3 Sample Matrix Spike Run: ICPMS4-C_l00826A 08/26/1020:30
Chromium 0.0528 mglL 0.050 106 70 130
Coball 0.0509 mglL 0.010 102 70 130
Vanadium 0.0524 mg/L 0.0010 105 70 130
Sample 10: C100B0752-40BCMSD 3 Sample Matrix Spike Duplicate Run: ICPMS4-C_l00826A 08/26/10 21 :04
Chromium 0.0534 mg/L 0.050 107 70 130 1.1 20
Cobalt 0.0519 mg/L 0.010 104 70 130 1.9 20
Vanadium 0.0528 mg/L 0.0010 106 70 130 0.9 20
Sample ID: LRB 3 Method Blank Run: ICPMS4-C_l00826A 08/26/10 13:33
Chromium NO mg/L 5E-05
Cobalt 0.00010 mglL lE-05
Vanadium 3E-05 mg/L lE-05
Sample 10: LFB 3 Laboratory Fortified Blank Run: ICPMS4-C_l00826A 08/26/10 13:40
Chromium 0.0544 mg/L 0.0010 109 85 115
Cobalt 0.0535 mg/L 0.0010 107 85 115
Vanadium 0.0536 mglL 0.0010 107 85 115
Qualifiers:
RL -Analyte reporting limit. NO -Not detected at the reporting limit.
MDC • Minimum detectable concentration
Page 32 of 39
EN:RGY
I\(~( [<)'\101 .. J-,_,
www.energlab.eom
AMIr*IIlmlllllttSlK.,W
Helena,lIIT 177-472-11711 • Billings, lIlT 101-735-4411 • Casper, WY 111-235-1515
Glllltta, WY 11&-111-7175 . Rapid City, SD 11B-172-1225 • College Station, nl ..... 1a-211.
QA/QC Summary Report
CUent: Denison Mines USA Corp
Project: Annual Tailings Sample
Analyte Count Relult Units
Method: E2OO.&
Sample 10: C10081053-004BMS4
Beryllium
Manganese
Zinc
Sample 10: C1008105:H)04BMSO
Beryllium
Manganese
Zinc
Sample 10: LRB
Beryllium
Manganese
Zinc
Sample 10: LFB
Beryllium
Manganese
Zinc
Qu.UfI.,s:
RL -Analyte reporting limit.
3 Sample Matrix Spike
0.0452 mglL
0.0513 mglL
0.0552 mglL
3 Sample Matrix Spike Duplicate
0.0440 mglL
0.0505 mglL
0.0547 mglL
3 Method Blank
NO mglL
NO mglL
0.003 mglL
3 Laboratory Fortified Blank
0.0515 mg/L
0.0508 mglL
0.0549 mg/L
MDC -Minimum detectable concentration
Report Date: 09/09/10
Work Order: C10080205
RL %REC Low Limit High Limit
0.010
0.010
0.010
0.010
0.010
0.010
3E-05
2E-05
0.0001
0.0010
0.0010
0.0010
90
99
103
88
98
102
103
102
103
Run: ICPMS4-C_100831A
70 130
70 130
70 130
Run: ICPMS4-C_1 00831 A
70 130
70 130
70 130
Run: ICPMS4-C_100831 A
Run: ICPMS4-C_100831 A
85 115
85 115
85 115
NO -Not detected at the reporting limit.
RPO RPOLimlt Qual
2.7
1.6
0.8
Batch: R136716A
08/31/1016:19
08/31/1016:26
20
20
20
08/31/10 12:50
08/31/1012:57
Page 33 of 39
EN:RGY
L,f\(~Dr-·/,rOI:)I · '..~
www.energylab.com
AtI#tI!tIUI~.SIlcw lilt
Helenl, lIT 177-4724711 • BlllinlS, lIT sal-731-44119 • Cuper, WY 1111-231-1515
Glllttta, WY 11&-111-7175 • Rapid City, SD 118-172-1225 • CoIIIIB Station, 1X 11 ... 10-221.
QA/QC Summary Report
Client: Denison Mines USA Corp Report Date: 09/09/10
Project: Annual Tailings Sample Work Order: C10080205
Analyte Count Re.ult Units RL %REC Low LImit High LImit RPO RPOLlmlt Qual
Method: E353.2 Batch: Rl36019
Sample 10: MBLK-1 Method Blank Run: TECHNICON_l00812A 08/12110 20:01
Nitrogen, Nitrate+Nitrite as N NO mglL 0.04
Sample 10: LCS-2 Laboratory Control Sample Run: TECHNICON_l00812A 08/12110 20:04
Nitrogen, Nitrate+Nitrite as N 2.47 mglL 0.10 99 90 110
Sample 10: C10080195-009AMS Sample Matrix Spike Run: TECHNICON_'00812A 08/1211021 :31
Nitrogen, Nitrate+Nitrite as N 1.97 mg/L 0.10 96 90 110
Sample 10: C10080195-009AMSO Sample Matrix Spike Duplicate Run: TECHNICON_l00812A 08/12110 21 :34
Nitrogen, Nitrate+Nitrite as N 1.98 mglL 0.10 96 90 110 0.5 10
Method: E353.2 Batch: Rl36271
Sample 10: MBLK-l Method Blank Run: TECHNICON_l00819A 08/19/10 19:49
Nitrogen, Nitrate+Nitrite as N NO mg/L 0.04
Sample 10: LC5-2 Laboratory Control Sample Run: TECHNICON_l00819A 08/19/1019:52
Nitrogen, Nitrate+Nitrite as N 2.54 mg/L 0.10 102 90 110
Sample 10: C10080282-OO2EMS Sample Matrix Spike Run: TECHNICON_l00819A 08/19/10 20:07
Nitrogen, Nitrate+Nitrite as N 2.08 mg/L 0.10 104 90 110
Sample 10: Cl0080282-OO2EMSO Sample Matrix Spike Duplicate Run: TECHNICON_l00819A 08/19/10 20:09
Nitrogen, Nitrate+Nitrite as N 2.00 mg/L 0.10 100 90 110 3.9 10
Method: E353.2 Batch: R136372
Sample 10: MBLK-1 Method Blank Run: TECHNICON_'00823A 08/23/10 15:11
Nitrogen, Nitrate+Nitrite as N NO mg/L 0.04
Sample 10: LCS-2 Laboratory Control Sample Run: TECHNICON_'00823A 08/23/1015:14
Nitrogen, Nitrate+Nitrite as N 2.58 mg/L 0.10 103 90 110
SamplelO: C10080337-OO3AMS Sample Matrix Spike Run: TECHNICON_l00823A 08/23/10 15:29
Nitrogen, Nitrate+Nitrite as N 2.22 mglL 0.10 104 90 110
Sample 10: C10080337-OO3AMSO Sample Matrix Spike Duplicate Run: TECHNICON_'00823A 08/23/1 0 15 :31
Nitrogen, Nitrate+Nitrite as N 2.25 mgIL 0.10 105 90 110 1.3 10
Qualifiers:
RL • Analyte reporting limit. NO -Not detected at the reporting limit.
MDC • Minimum detectable concentration
Page 34 of 39
EN:RGY
LA ,( r".lr;;I'j .~
Halen., lIT 177-472-11711 • Billings, lIT 1G1-735-4411 • Casper, WY 111-235-1515
Gliletta, WY 111-1"-7175 • Rapid City, SD 118-172-1225 • CoIlegs SIIIion, 1X ...... 11)-2211
QA/QC Summary Report
Client: Denison Mines USA Corp
Project: Annual Tailings Sample
Analyle
Method: E900.1
Sample 10: MB-GA-0344
Gross Alpha minus Rn & U
Count Re.ult
3 Method Blank
-O.OB
Gross Alpha minus Rn & U Precision (:1:) 0.3
Gross Alpha minus Rn & U MDC 0.5
Units
pCi/L
pCilL
pCi/L
Sample 10: LCS-GA-0344
Gross Alpha minus Rn & U
Laboratory Control Sample
Sample 10: C10080116-001CMS
Gross Alpha minus Rn & U
SamplelD: C10080116-001CMSD
Gross Alpha minus Rn & U
auallnerl:
RL -Analyle reporting limit.
MDC -Minimum detectable concentration
26.4 peilL
Sample Matrix Spike
30.1 pCi/L
Sample Matrix Spike Duplicate
27.7 pCi/L
Report Date: 09/09/10
Work Order: C100B0205
RL %REC Low Limit High Limit
Run: G542M_'00B20A
Run: G542M_'00820A
101 70 130
Run: G542M_'00820A
110 70 130
Run:G542M_'00B20A
102 70 130
NO -Not detected at the reporting limit.
RPD RPDLlmlt Qual
B.4
Batch: GA-0344
OB/25/10 00:20
U
08/25/1000:20
OB/25/10 00:20
OB/25/10 00:20
21.9
U -Not detected at minimum detectable concentration
Page 35 of 39
EN:RGY
L /\HC'I/Jd Of'1 _ ,--.
www.energylab.com
1M/ttIaIE-*-.fIJa fW
Helena, NT 177-472-11711 • Billings, MT 1G1-735-4UI • Casper, WY 811-235-1515
Gillette, WY 11&-111-7175 . Rapid City, SD 111-172-1225 . CoIIBg8SIItion, TX 111-111-2211
QA/Qe Summary Report
Client: Denison Mines USA Corp
Project: Annual Tailings Sample
Analyte
Method: SW8260B
Sample 10: 09-Aug-l0_LCS_5
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
m-tp-Xylenes
Methyl ethyl ketone
Methylene chloride
Naphthalene
o-Xylene
Toluene
Xylenes, Total
Surr: 1,2-0ichlorobenzene-d4
Surr: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Sample 10: 09-Aug-l0_MBLKJ
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
m-tp-Xylenes
Methyl ethyl ketone
Methylene chloride
Naphthalene
o-Xylene
Toluene
Xylenes, Total
Surr: 1 ,2-0ichlorobenzene-d4
Surr: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Sample 10: Cl0080205-003EMS
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
m..p-Xylenes
Melhyl ethyl ketone
Methylene chloride
Naphthalene
Qualifiers:
RL -Analyte reporting limit.
Count Result Units
16 Laboratory Control Sample
110 uglL
12 uglL
10 ug/L
12 uglL
12 uglL
24 uglL
120 uglL
12 uglL
11 uglL
12 uglL
12 uglL
35 uglL
16 Method Blank
NO ug/L
NO ugIL
NO ugIL
NO uglL
NO uglL
NO uglL
NO uglL
NO ug/L
NO ug/L
NO ug/L
NO ugIL
NO ug/L
16 Sample Matrix Spike
2500 ugIL
240 ugIL
230 ug/L
260 ugIL
260 uglL
490 ugIL
2400 ugIL
270 uglL
220 ug/L
MDC -Minimum deteclable concentration
Report Date: 09/09/10
Work Order: Cl0080205
RL %REC Low Limit High Limit RPO RPOLlmlt Qual
Batch: R135876
Run: 5975VOCC100809A 08/09/1010:41
20 115 70 130
1.0 118 70 130
1.0 104 70 130
1.0 117 70 130
1.0 120 70 130
1.0 118 70 130
20 116 70 130
1.0 116 70 130
1.0 106 70 130
1.0 117 70 130
1.0 122 70 130
1.0 118 70 130
1.0 90 80 120
1.0 92 70 130
1.0 98 80 130
1.0 93 80 120
Run: 5975VOCl _'00809A 08/09/10 13:21
20
1.0
1.0
1.0
1.0
1.0
20
1.0
1.0
1.0
1.0
1.0
1.0 102 80 120
1.0 102 70 130
1.0 104 80 120
1.0 86 80 120
Run: 5975VOCl 100809A 08/09/1020:26 -
400 124 70 130
20 120 70 130
20 117 70 130
20 128 70 130
20 131 70 130 S
20 122 70 130
400 118 70 130
20 133 70 130 S
20 102 70 130
NO -Not detected at the reporting limit.
S -Spike recovery outside of adviSOry limits.
Page 36 of 39
EN:RGY
_f': !()P/ .. r '" ..... lel I '_
www.enerBlab.com
AIIIIfIIaI ~ Sba 1161
Helen., lIT 177-47201711 • 81111nl5o lIT I1I-73S-44 •• • Cuper, WY ..... 235-1515
GIllIItIe, W'( 111-111·7175 . Rapid City, SD ..... 172·1225 • Colilge Station, IX •• WID-221.
QA/QC Summary Report
elfent: Denison Mines USA Corp Report Date: 09/09/10
Project: Annual Tailings Sample Wort< Order: C10080205
An.lyle Count Result Units RL %REC Low Limit High Limit RPO RPOLlmlt Qual
Method: SW8260B Batch: R135B76
Sample 10: C10080205-003EMS 16 Sample Matrix Spike Run:5975V~I_100B09A OB/09/10 20:26
o-Xylene 240 ug/L 20 120 70 130
Toluene 250 ug/L 20 124 70 130
Xylenes, Total 730 ug/L 20 121 70 130
Surr: 1.2-Dichlorobenzene-d4 1.0 90 eo 120
Surr: Dibromofluoromethane 1.0 100 70 130
Surr: p-Bromofluorobenzene 1.0 99 BO 120
Surr: Toluene-dB 1.0 94 BO 120
Sample 10: C10080205-003EMSO 16 Sample Matrix Spike Duplicate Run: 5975VOC1_l00B09A OB/09/10 21 :02
Acetone 2600 ug/L 400 12B 70 130 2.9 20
Benzene 240 uglL 20 120 70 130 0.7 20
Carbon tetrachloride 220 uglL 20 112 70 130 4.6 20
Chloroform 250 ug/L 20 123 70 130 4.1 20
Chloromethane 260 ug/L 20 131 70 130 0 20 S
m-til-Xylenes 4BO ug/L 20 119 70 130 2 20
Methyl ethyl ketone 2400 ug/L 400 122 70 130 4 20
Methylene chloride 260 ug/L 20 126 70 130 5.2 20
Naphthalene 240 ug/L 20 110 70 130 7 20
o-Xylene 240 ug/L 20 lIB 70 130 1.3 20
Toluene 240 uglL 20 122 70 130 1.6 20
Xylenes, Total 710 ug/L 20 119 70 130 I.B 20
Surr: 1.2-Dichlorobenzene-d4 1.0 91 BO 120 0 10
Surr: Dibromofluoromethane 1.0 98 70 130 0 10
Surr: p-Bromofluorobenzene 1.0 99 eo 120 0 10
Surr: Toluene-dB 1.0 94 80 120 0 10
auallflers:
RL -Analyte reporting limit. NO -Not detected at the reporting limit.
MDC -Minimum detectable concentration S -Spike recovery outside of advisory limits.
Page 37 of 39
EN:RGY
'-:,r :l~. "~',, ~-:;'I JI' ,-.
Helena, "" 117-412-8711 • Billinp, lIT 1111·735-446 • Clsper, WY 111-235-1515
Gillette. WY 1.1-.. 8·7175 • Rapid City. SD 1 .... 72·1225 • CoIllie StJtion, IX 111-111-2211
Workorder Receipt Checklist
Denison Mines USA Corp
101111111111111
C10080205
Login completed by: Corinne Wagner
Reviewed by: BL2000\kschroeder
Reviewed Date: 8/10/2010
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/bottle?
Sample containers intad?
Sufficient sample volume for indicated test?
All samples received within holding time?
ContainerlTemp 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
2°C On Ice
Yes 0
Yes 0
Date Received: 8/5/2010
Received by: tae
Carrier name: Fed Ex
No D
N°D
NoD
NoD
N°D
No D
N°D
NoD
No D
N°D
Not Present D
Not Present D
Not Present 0"
No D
N°D
No VOA vials submitted D
Not Applicable D
Page 38 of 39
'U
411 :g
a w CD
Chain of Custody and Analytical Request Record Page-Ld-l-
Yes~ NoD
Sampler: (Please Print)
Purchase
Special ReportlFonnats: is '-+, Contact 8.1 prior to
RUSH sanple submittal I _n'* >. :-== I
B~~1WMIWTP
OState: __ _ o Other: ___ _
o EDD/EDT(Electronic Data)
Fonnat. ___ _ o LEVEL IV o NELAC
I"'~~. Bis > '0 !itO U)~K~ U~~~ < ii5I 'ts 8.!! c:: !~~ e >I ~
c ~ w t::::.
:I: i ~ e ~ ~
W 'E W III
UJ ~ ~
for charges and R I scheduling -See
Instruction
u
s
H
In certain circumstances, samples .ubmitt4ld to Energy Laboratories, Inc. may be subcontracted to other certified laboratories in order to coiIplate JI
This serves as notice of !hill possibility. Allsub-contract data will be clearly notated on your analytical report.
VIsit our web site at www.energylab.com for additional information, downloadable fee schedule, forma, and links.
Y N
~:
0"
www.enerolab.com EN:RGY
L f,.,.,('>hn' (.,HIL ~ ",.",.. E..a.. sa. 'lSI
Helena, MT .77 .... 72-0711 • Billinp, MT 101·735 ........ • Casper, WY 88.·235-1515
GIllItIe, WY .1&-... ·7175 • Rapid City, SD 111-172·1225 • College Station, 1X ...... 0-221.
ANALYTICAL SUMMARY REPORT
September 09,2010
Denison Mines USA Corp
6425 S Hwy 191
Blanding, UT 84511
Workorder No.: C10080205
Project Name: Annual Tailings Sample
Quote 10: C1640 -POC Wells
Energy Laboratories, Inc. received the fOllowing 9 samples for Denison Mines USA Corp on 8/5/2010 for analysis.
Sample 10 Client Sample 10 Collect Date Receive Date Matrix Test
C10080205-001 Cell 1 08/03/10 09:05 08/05/10
C10080205-002 Cell 2 Slimes 08/03/10 10:50 08/05/10
C10080205-003 Cell 2 LOS 08/03/10 12 :50 08/05/10
C10080205-004 Cell 3 08/03/1014:50 08/05/10
C 10080205-005 Cell 4A 08/03/1 0 13 :50 08/05/10
Aqueous Metals by ICP/ICPMS, Dissolved
Acidity, Total as CaC03
Alkalinity
QA Calculations
Chloride
Conductivity
Fluoride
Nitrogen, Ammonia
Nitrogen, Nitrate + Nitrite
pH
Gross Alpha minus Rn222 and
Uranium
Solids, Total Dissolved
Sulfate
SW8260B VOCs, Standard List
Aqueous Same As Above
Aqueous Metals by ICP/ICPMS, Dissolved
Alkalinity
QA Calculations
Chloride
Conductivity
Fluoride
Nitrogen, Ammonia
Nitrogen, Nitrate + Nitrite
pH
Gross Alpha minus Rn222 and
Uranium
Solids, Total Dissolved
Sulfate
SW8260B VQCs, Standard List
Aqueous Metals by ICP/ICPMS, Dissolved
Acidity, Total as CaC03
Alkalinity
QA Calculations
Chloride
Conductivity
Fluoride
Nitrogen, Ammonia
Nitrogen, Nitrate + Nitrite
pH
Gross Alpha minus Rn222 and
Uranium
Solids, Total Dissolved
Sulfate
SW8260B VQCs, Standard List
Aqueous Same As Above
Page 1 of 5
EI\ERGY
i\H,)1 :" ,;: ... ,-_':... Em· www.energyiab.eom
AIIIIytIuI EmIIMu SIIIu '151
Helena, NT 877-472-G711 • Billinll, NT 101-735-44" • Casper, 'NY 888-235-1515
GilleID, 'NY 1&1-111-7175 • Rapid City, SD 111-172-1225 • Collage SlItion, lX 888-1110221.
ANALmCAL SUMMARY REPORT
C 10080205-006 Cell 4A LOS 08/03/10 13 :40 08/05/1 0 Aqueous Same As Above
C10080205-007 Slimes 65 08/03/10 10:50 08/05/1 0 Aqueous Same As Above
C10080205-008 Trip Blank 08/03/10 00 :00 08/05/1 0 Aqueous SW8260B VOCs, Standard List
C10080205-009 Temp Blank 08/03/10 00 :00 08/05/1 0 Aqueous 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 OAlOC 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.
ReportApp .... dB" k~
Technical Director
Digitally signed by
Steve Carlston
Date: 2010.10.01 15:32:20 -06:00
Page 20f5
EN:RGY
Ij \L:;OI 1/.1 Of-II:' ~
www.energytab.com
IMI/fIJaIlIaIIMcI ss. 1m Halana, MT 877-472-G711 • Billings, MT BGI-731-4489 • Caspar, W'188B-231-D515
Gillette, WY 11&-18&-7175 • Rapid City, SD IIB-172-1221 • College Station, TX 181-&1D-221I
LABORATORY ANALYTICAL REPORT
Client:
Site Name:
Denison Mines USA Corp
Annual Tailings Sample
Lab 10: C1 0080205-001
Client Sample 10: Cell 1
Matrix: Aqueous
Analyses
PHYSICAL PROPERTIES
Conductivity @ 25 C
Result Un"s
110000 umhos/cm
Qualifiers
DE
RL
2
MCU
Report Date: 09/09/10
Collection Date: 08/03/1009:05
DateRecelved: 08/05/10
QCL Method Analysis Date 1 By
A2510 B 08/09/1010:3111r
-DE -the data reported Is from a diluted conductivity; the undiluted value is beyond the calibration range of the instrument.
Lab 10: C10080205-002
Client Sample 10: Cell 2 Slimes
Matrix: Aqueous
Analyses
PHYSICAL PROPERTIES
Conductivity @ 25 C
Result Units Qualifiers
60200 umhos/cm DE
RL
2
MCU
Collection Date: 08/03/1010:50
DateRecelved: 08/05/10
QCL Method Analysis Date I By
A2510 B 08/09/1010:33/1r
-DE -the data reported is from a diluted conductivity; the undiluted value is beyond the calibration range of the instrument.
Lab 10: C10080205-003
Client Sample 10: Cell 2 LOS
Matrix: Aqueous
Analyses
PHYSICAL PROPERTIES
Conductivity @ 25 C
Lab 10: C10080205-004
Client Sample 10: Cell 3
Matrix: Aqueous
Analyses
PHYSICAL PROPERTIES
Result Units
6500 umhos/cm
Result Units
Qualifiers RL
Qualltl.,. RL
Collection Date: 08/03/1012:50
DateRecelved: 08/05/10
MCU
QCL Method Analysis Date I By
A2510 B 08/06/10 13:1811r
Collection Date: 08/03/10 14:50
DateRecelved: 08/05/10
MCU
QCL Method Analysis Date 1 By
Conductivity@ 25 C 59800 umhos/cm DE 2 A2510 B 08/09/1010:3411r
-DE -the data raported is from a diluted conductivity; the undiluted value is beyond the calibration range of the instrument.
Report RL -Analyle reporting limit.
Definitions: OCL -Quality control limit.
D -RL increased due to sample matrix.
MCL -Maximum contaminant level.
ND -Not detected at the reporting limit.
E -Estimated value. Result exceeds the instrument upper
quantitation limit.
Page 30f5
EN:RGY
L I\~HHI/\ r01 ~I_';
-ml-www.energyllb.com
W/t*II EIItIIIa .. 1m
Helena, lilT 177-472-G711 • Billings, MT 801·735-4419 • Casper, WY .1 .. 235-1515
GillaIta, WY 11&-111·7175 • Rapid Citr, SD 111-172·1225 • Collels Slltion, IX .11-110-2211
LABORATORY ANALYTICAL REPORT
Client:
Site Nlme:
Denison Mines USA Corp
Annual Tailings Sample
Lab 10: C10080205·005
Client Sample 10: Cell 4A
Matrix: Aqueous
PHYSICAL PROPERTIES
Conductivity @ 25 e
Result Units
101000 umhos/cm
Qualifiers
DE
RL
2
MCU
Report Date: 09/09/10
Collection Date: 08/03/1013:50
DateRecelved: 08/05/10
QCL Method Analysis Date I By
A2510 B 08/09/10 10:3611r
-DE -the data reported is from a diluted conductivity; the undiluted value is beyond the calibration range of the instrument.
Lab 10: C 10080205-006 Collection Date: 08/03/1013:40
Client Sample 10: Cell 4A LOS DateRecelved: 08/05/10
Matrix: Aqueous
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date I By
PHYSICAL PROPERTIES
Conductivity @ 25 e 49000 umhos/cm A2510 B 08/06110 13:2311r
Lab 10: C10080205-007 Collection Date: 08/03/10 10:50
Client Sample 10: Slimes 65 DateRecelved: 08/05/10
Matrix: Aqueous
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Ostel By
PHYSICAL PROPERTIES
Conductivity @ 25 e 60200 umhos/cm DE 2 A2510 B 08/09/1010:37/1r
-DE -the data reported is from a diluted conductivity; the undiluted value is beyond the calibration range of the instrument.
Report Rl • Analyte reporting limi!.
Definitions: Qel -Quality controllimi!.
D -RL Increased due to sample matrix.
Mel -Maximum contaminant level.
ND -Not detected at the reporting liml!.
E -Estimated value. Result exceeds the instrument upper
quantitation IImi!.
Page 4 of5
EN:RGY www.eneraylab.com Hallin., lIT 877"'72~711 • Billinp, lIT l1li1·735-441 •• Cuper, WY 811-235-1515
Gillette, WY .1.-111·7175 • Rapid City, SD 111-172-1225 • College Station, TX 11 .... 11J-2Z11 /\I-!C I'f'TOPI_ c-_ ",.".. EIIIIIIN .. lID
Client: Denison Mines USA Corp
Project: Annual Tailings Sample
QA/QC Summary Report
Report Date: 09/09/10
Work Order: C10080205
Analyle Count Result Units RL %REC Low Limit High Limit RPO RPOLlmlt Qual
Method: A2510 B
Sample 10: ICV2_100806_1
Conductivity @ 25 C
Method: A2510 B
Sample 10: MBLK1_100806_1
Conductivity @ 25 C
Sample 10: C10080206-001ADUP
Conductivity @ 25 C
Method: A2510 B
Sample 10: ICV2_100809_1
Conductivity @ 25 C
Method: A2510 B
Sample 10: MBLK1_l00809_1
Conductivity @ 25 C
Sample 10: C10080185-00SADUP
Conductivity @ 25 C
QUlllfiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
Initial Calibration Verification Standard
1370 umhos/cm 1.0 97
Method Blank
0.5 umhos/cm 0.2
Sample Duplicate
20BO umhos/cm 1.0
Initial Calibration Verification Standard
1360 umhos/cm 1.0 96
Method Blank
O.B umhos/cm 0.2
Sample Duplicate
656 umhos/cm 1.0
Analytical Run: ORION555A-2_100806A
OB/06/10 13:03
90 110
Run: ORION555A-2_100B06A
Run: ORION555A-2_1 00B06A
0.2
OB/06/10 12:59
OB/06/10 13:31
10
Analytical Run: ORION555A-2_100809A
OB/09/10 10:29
90 110
Run: ORION555A-2_1 00809A
Run: ORION555A·2_100B09A
o
OB/09/10 10:24
OB/0911 0 11 :04
10
NO -Not detected at the reporting limit.
Page 5 of 5
A Jo Ann Tischler
Denison Mines
1050 17th Street, # 950
AMERICAN Denver, CO 80265
WEST TEL: [phone]
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
RE: Annual Tailings
Dear Jo Ann Tischler: Lab Set ID: 1008101
American West Analytical Laboratories received 8 sample(s) on 8/5/2010 for the analyses
presented in the following report.
All analyses were perfonned 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 "Surr" 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. Olgilall~ .Igned by Kyle ':: Gros.
ON. a1-Kyle F. Groa, o=AWAL,
au-AWAL. emlil30kyle@awal-
G 'abo.com, c=US ross Oole:2010.08.1810:10:46.(16'OO'
Approved by: L...-__________ ---'
Laboratory Director or designee
Report Date: 8/17/2010 Page 1 of70
All analyse. applicable 10 the CWA, SDWA. and RCRA are perfonned In acconlance 10 NELAC protocols. Penlnenlsampllng Infonnatlon Is localed on lb. altached COCo This repro Is provided for the exclusive .... oflhe
.dd"' ..... Prtvlloses of subsequent use of the name of Ihls company or any member of 115 s .. fT, or reproduction of ibis repon In coonectlon with Ibe advenlsement, promotion or sale of any product or proceu, or In connectton
wilh the ..... publlc.Uoo of ibis report for any purpose "",er than for the addre!lSee will be !!Rnted only on con!act. This company aceepl5 no responsibility except for the due perfonnance of Inspection and/or analysis In good faith
and according to the rules of the trade and ofsclerlce.
A SAMPLE SUMMARY
AMERICAN Client: Oenison Mines Contact: Jo Ann Tischler
WEST Project: Annual Tailings
Lab Set ID: 1008101 ANALYTICAL Date Received: 8/5/2010 1000h
LAB ORA TORIES
Lab Sample ID Client Sample ID Date Collected Matrix Analysis
1008101-001A Cell 1 8/3/2010 0905h Aqueous VOA byGC/MS
463 West 3600 South Method 8260C/5030C
Salt Lake City. UT 1008101-001B Cell 1 8/312010 0905h Aqueous SVOAs by GC/MS
84115 Method 82700
1008101-002A Cell 2 Slimes 8/312010 1050h Aqueous VOAbyGC/MS
Method 8260C/5030C
1008101-002B Cell 2 Slimes 8/3/2010 1050h Aqueous SVOAs by GC/MS
[phone] Method 8270D
Toll Free [phone] 1008101-003A Cell 2 LOS 8/312010 1250h Aqueous VOAbyGC/MS
Fax [phone] Method 8260C/5030C
email: [e-mail] 1008101-003B Cell 2 LOS 8/3/2010 1250h Aqueous SVOAs by GC/MS
Method 8270D
Kyle F. Gross 1008101-004A Cell 3 8/312010 1450h Aqueous VOAby GC/MS
Method 8260C/5030C
Laboratory Director 1008101-004B Cell 3 8/3/2010 1450h Aqueous SVOAs by GC/MS
Method 8270D
Jose Rocha 1008101-005A Ce1l4A 8/3/2010 1350h Aqueous VOAbyGCIMS
QAOfficer Method 8260C/5030C
1008101-005B Ce1l4A 8/3/2010 1350h Aqueous SVOAs by GC/MS
Method 82700
1008101-006A Cell4A LOS 8/3/2010 1340h Aqueous VOAby GC/MS
Method 8260C/5030C
1008101-006B Ce1l4A LDS 8/3/2010 1340h Aqueous SVOAs by GC/MS
Method 82700
1008101-007A Slimes 65 8/3/2010 1050h Aqueous VOAby GC/MS
Method 8260C/5030C
1008101-007B Slimes 65 8/3/2010 1050h Aqueous SVOAs by GC/MS
Method 82700
1008101-008A Trip Blank 8/3/2010 Aqueous VOAbyGC/MS
Method 8260C/5030C
Report Date: 8117/20 I 0 Page 2 of70
All analyses applicable 10 the CWA. SDWA. and RCRA are perfonned In accordance 10 NELAC prolocols. Perllnenl sampllnglnfonnatlon Is localed on the altacbed COCo This reporlls provided for the exclusive use oflhe
addressee. Privileges ofsubsequenl use or the name oflhls cOfJ'Ipany or any member of 115 staff, or reproducUoo orthJs report in connection with the advenlsemenl, promollon or sale oraoy product or process, or In COMeciion
with Ihe re·publlcatlon of Ihls "'pori for any pUlJlO5e ottler lhan for the addressee will he gnmled only on conlacl. 111ls company accepts no responsibility excepl for the due perfonnance of inspection andlor analysis In good failh
and according In lhe rul .. of the lr.lde and of science.
A
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City. VT
84115
[phone]
Toll Free [phone]
Fax [phone]
email: [e-mail]
Kyle F. Gross
Laboratory Director
Jose Rocha
QAOfficer
Semivolatile Case Narrative
Client:
Contact:
Denison Mines
Jo Ann Tischler
Annual Tailings
1008101
Project:
Lab Set ID:
Sample Receipt Information:
Date of Receipt:
Date of Collection:
Sample Condition:
C-O-C Discrepancies:
Method:
Analysis:
8/5/2010
8/3/2010
Intact
None
SW-8468270D/3510C
Semi volatile Organics
General Set Comments: Multiple target analytes were observed above their reporting
limits.
Holding Time Requirements: The preparations and analyses of the samples were
performed within respective holding times.
Preparation Requirements: The samples were prepared and analyzed 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: No target analytes were detected above reporting limits,
indicating that the procedure was free from contamination.
Laboratory Control Sample (LCS): 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. With the following exceptions: The MS and MSD
percent recoveries were outside of control limits on multiple analytes for sample
1008101-002B due to sample matrix interference.
Surrogates: All surrogate recoveries were within established limits, with the
following exceptions: Nitrobenzene-.d5 was outside the control limits on sample
100810 1-002B, its MS, and MSD. Repreparation and reanalysis andlor MS samples
yielded similar results indicating matrix interference.
Corrective Action: None required.
Report Date: 8/17/2010 Page 3 of70
AlianalY"" applicable 10 the CWA. SDWA. and RCRA are perfonned In accordance 10 NELAC prolocols. Penlnenl sampling infonnallon Is localed on the a\lached COCo This repon I. proVided for lhe exclusive ... oflhe
addressee. Prlvlleges of subsequent use of Ihe name of this company or any member of Its staff. or reproduction of this report in connection with the advertJsemenf, promOilon or sale of any producl or process, or In COMection
with Ihe re'publlcatlon of Ihls repon for any purpose other than for the addressee will be granled only on contact. 1his company accept< no responsIbility excepl for lhe due perfonnance of Inspection and/or .. alystsln good faith
and according 10 Ihe 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 (801}263-8687
email: [e-mail]
Kyle F. Gross
Laboratory Director
Jose Rocha
QAOfficer
Volatile Case Narrative
Client:
Contact:
Denison Mines
Jo Ann Tischler
Annual Tailings
1008101
Project:
Lab SetID:
Sample Receipt Information:
Date of Receipt:
Date of Collection:
Sample Condition:
C-O-C Discrepancies:
Method:
Analysis:
8/5/2010
8/3/2010
Intact
None
SW-8468260CIS030C
Tetrahydrofuran
General Set Comments: Tetrahydrofuran was observed on multiple samples above its
reporting limit.
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 (MSIMSD): 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: 8117/2010 Page 4 ef70
All analyses applicable 10 lhe CWA. SDWA. and RCRA are performed In accordance 10 NELAC prolocols. Pertlnenlsampllng Infonnallon Is localed on the auached COCo This report Is provided fOrlhe exclusive use oflhe
addre ..... Prtvlleges ohubsequenl use of the name of this company or any member of ils SlafT. or reproduction of this report In connection with the advertisement. promotion Of sale ofany product or proc .... or In connecllon
with the .... publlcatlon oflhl. report forany purpose other lhan for the addressee wUl be granled only on conlact. This company accepls no responsibility excepl for the due perfonnance of Inspection andlor analysis in good failh
and according to the rules of tbe trade and of science.
A AMERICAN WEST ANAL YTICAL LAB ORA TORIES Kyle F. Gross
463 West 3600 South Laboratory Director
Salt Lake City. UT 84115 Jose Rocha
[phone]. Toll F",. [phone]. Fax [phone] QAOfficer e-mail: [e-mail]. web: www.awal-labs.com
QC SUMMARY REPORT
Client: Denison Mines
Lab Set 10: 1008101 Dept: MSSV
Project: Annual Tailings QCType: LCS
Amount Original Aaalysis
Sample ID Aaalyte Uaits Metbod Result Spiked Amouat D/.REC Limits ·/.RPD RPD Limit Qualifiers Date
LCS-7848 1.2.4-Tricblorobenzene ~glL SW8270D 10.9 80.00 0 13.7 10-104 8/9/2010
LCS-7848 1,4-Dichlorobenzene ~glL SW8270D < 10.0 80.00 0 10.9 10-118 8/9/2010
LCS-7848 2,4,6-Tricbloropbenol ~gIL SW8270D 46.4 80.00 0 58.0 20-117 8/9/2010
LCS-7848 2,4-Dimetbylphenol ~glL SW8270D 35.6 80.00 0 44.6 10-131 8/9/2010
LCS-7848 2,4-Dinilrololuene ~glL SW8270D 67.6 80.00 0 84.5 42-219 8/9/2010
LCS-7K48 2-Chlorooapbtbalene ~gIL SW8270D 21.2 80.00 0 26.5 23-126 8/912010
LCS-7848 2-Chloropbenol ~gIL SW8270D 28.1 80.00 0 35.1 15-114 8/9/2010
LCS-7848 4,6-Dinitro-2-rnethylphenol ~glL SW8270D 60.6 80.00 0 75.8 10-190 8/9/2010
LCS-7848 4-Chloro-3-metbylphenol ~gIL SW8270D 55.4 80.00 0 69.3 29-148 8/9/2010
LCS-7848 4-Nitropbenol ~gIL SW8270D 18.6 80.00 0 23.3 10-114 8/9/2010
LCS-7848 Acenaphthene ~glL SW8270D 32.1 80.00 0 40.2 20-116 8/9/2010
LCS-7848 Benzo(a)pyrene ~glL SW8270D 43.7 80.00 0 54.7 39-152 8/912010
LCS-7848 N-Nilrosodi-n-propylamine ~glL SW8270D 22.6 80.00 0 28.2 20-148 8/9/2010
LCS-7848 Pentachlorophenol ~glL SW8270D 58.8 80.00 0 73.5 23-162 8/9/2010
LCS-7848 Phenol ~glL SW8270D < 10.0 80.00 0 12.5 10-131 8/9/2010
LCS-7K48 Pyrene ~glL SW8270D 78.5 80.00 0 98.1 37-138 8/9/2010
LCS-7848 Surr: 2,4,6-Tribromopheno) %REC SW8270D 62.8 80.00 78.6 10-165 8/9/2010
LCS-7848 Surr: 2-Fluorobipbenyl 'YaREC SW8270D 11 .3 40.00 28.2 18-113 8/9/2010
LCS-7848 Surr: 2-Fluoropbenol %REC SW8270D 14.3 80.00 17.8 10-121 8/9/2010
LCS-7848 Surr: Nitrobenzene-d5 %REC SW8270D 8.19 40.00 20.5 17-133 8/9/2010
LCS-7848 Surr: Phenol-d6 %REC SW8270D 10.3 80.00 12.9 10-124 8/9/2010
LCS-7848 Surr: TeIpbenyl-d14 %REC SW8270D 41.4 40.00 103 28-163 8/9/2010
Report Date: 8(1712010 Page 34 of70
AU anaIyRS applk-.abJe to the CWA. SDWA. and. RCRA are perfonll~ In ar..conJam:e to NELAC proIOCtIls. Pertb~11 sampling blronn~tion 15 kx:aIed on the allached COCo nlis report is provided for the exclusive !..lSe or the addressee. Priv11~es of subsequent use of .he nome of Ihls company Dr any mE!mber of ib. staff. OJ reprooocUoIi
of this r .. pun In ~Ilon wlth tIw am'ertbemenl, promoIkm or saJe of OAIly product or proc~. or In comieCtJon willi rlw. r~b11mtion o( rbls rP.port (or any purpost! other than Cor thE! iKldl'l!'SS'!e wlll be b"8lII~ only on CDlrtact. 1llis rompauy accepts no responsibility p.xcept Cor UN'! dup. pe1fomUUlCe of IILor;pectlon amllor ana.l)'5l~ 111 good
Calli. iIIld ac:ronIb~ tn thl! rules of t~ ~ iUxI or science.
A
Oieat: Denison Mines
Lab Set ID: 1008101
Project: Annual Tailings
Sa.ple ID Aaalyte
MB-7848 1,2,4-Tricblorobenzene
MB-7848 1,2-Dichlorobenzene
MB-7848 1,3-Dichlorobenzene
MB-7848 1,4-Dichlorobenzene
MB-7848 I-Metbylnaphthillene
MB-7848 2,4,S-Trichlorophenol
MB-7848 2,4,6-Trichlorophenol
MB-7848 2,4-Dicblorophenol
MB-7848 2.4-Dimethylphenol
MB-7848 2,4-Dinilrophenol
MB-7848 2,4-Dinilrololuene
MB-7848 2,6-Dinitrotoluene
MB-7848 2-ChlorOlllJphlhalene
MB-7848 2-Cbloropbenol
MB-7848 2-Metbylnaphthillene
MB-7848 2-MetbYlphenol
MB-7848 2-Nitrophenol
MB-7848 3&4-Methylphenol
MB-7848 3,3' -Dichlorobenzidine
MB-7848 4,6-Dinitro-2-methylphenol
MB-7848 4-Bromophenyl pbenyl ether
MB-7848 4-Cbloro-3-methylphenol
MB-7848 4-Cblorophenyl phenyl ether
MB-7848 4-Nitrophenol
AMERICAN WEST ANAL YTICAL LABORATORIES
463 West 3600 South
Units
"gIL
"giL
"g/L
"giL
IlglL
IlglL
IlglL
IlglL
IlglL
"giL
"giL
"giL
"giL
IlglL
"giL
"giL
"giL
J.lglL
JlglL
J.lglL
J.lg/L
"gIL
J.lgIL
JlgIL
Salt Lake City. UT 84115
[phone]. ToU Free [phone]. Fax [phone]
e-mall: [e-mail]. web: www.awal-labs.com
QC SUMMARY REPORT
Dept: MSSV
QC Type: MBLK
Amount Original
Method Result Spiked Amount '"I.REe
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D <20.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
Limits
Kyle F. Gross
Laboratory Director
Jose Rocha
QAOfficer
'"I.RPD RPD Limit Qualifiers
Analysis
Date
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/912010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/912010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
Report Dale: 8/17/2010 Page 35 of70
AU.lP6lly~s =-II'PUQbk! 10 thr CWA. SDWA. It.J RCRA IIIIt pnrgcmcd III acco«b~ to NELAC proIoml(. Pdtth!tt\l iIIlt!pllng I.nloollildon is Ioc»lrd on 11M! al'itChed COCo nils "'port is lH'Dvklet.l for the exclusive u.w. of the ~. PrlvUegt!S ofSUbsequelll U!ie oflhe 1\1U1te ofdlls (nlUpIlIlY or any nk'luber of its staff. or reproductlun
otrhb rl!'pOt11nCUlllwcUllnwbh t.t.: Mh'rniwmttlt. prurootkllllf'lf~bflln)' produCtOS' ~ OC' ilicalUMrClb,1 whh d. ~lk8tkJn orlhls",poIl for any ~ odJer than for the~wll1 be granll!ido.ulyotl contact.1l\bmmpanYf.c:a!ptslltl tP.SpOtlSJbUhy .. ~ rw tiM' dUf!: perfnnuanceol blspectlon~O{ aHalysJs In good
f>lJh ... 110«0",1011110 ,h. ,."'0(,1 .. h'.I .. ,tdofJ<loJllt'll..
A
Clieat: Denison Mines
Lab Set lD: 1008101
Project: Annual Tailings
Sample 1D Aaal)1e
MB-7848 Acenaphthene
MB-7848 Acenaphthylene
MB-7848 Anthracene
MB-7848 Azobenzene
MB-7848 Benz(a )anthracene
MB-7848 Benzidine
MB-7848 Benzo(a)pyrene
MB-7848 Be~b)fluoranthene
MB-7848 Be~g,h,i)perylene
MB-7848 Benzo(k)fluoranthene
MB-7848 Bis(2-chloroethoxy)methane
MB-7848 Bis(2-chloroethyl) ether
MB-7848 Bis(2-chloroisopropyl) ether
MB-7848 Bis(2~thylhexyl) phthalate
MB-7848 Butyl benzyl phthalate
MB-7848 Chrysene
MB-7848 Dibenz( a,h)anthracene
MB-7848 Diethyl phthalate
MB-7848 Dimethyl phthalate
MB-7848 Di-n-butyl phthalate
MB-7848 Di-n--octyl phthalate
MB-7848 Fluoranthene
MB-7848 Fluorene
MB-7848 Hexachlorobenzene
AMERICAN WEST ANAL YTICAL LABORATORIES
463 West 3600 South
Units
"giL
,..glL
,..glL
"gIL
,..gIL
,..gIL
,..glL
,..glL
"gIL
,..glL
"giL
"giL
"giL
,..gIL
,..glL
"gIL
,..glL
,..glL
"gIL
"giL
"gIL
"giL
,..gIL
"giL
Salt Lake City, UT 84115
(801) 2fi3·1!Ii1!li. Toll Fr •• (81111) 263·1!IiI!Ii. Fax [phone]!Ii87
e·IN!IU: awal@awal-Ilbs,com. web: www.awal-labs.com
QC SUMMARY REPORT
Dept: MSSV
QC Type: MBLK
Amount Original
Metbod Result Spiked Amount °/.REC
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
SW8270D < 10.0
Limits
Kyle F. Gross
Laboratory Director
Jose Rocha
QAOfficer
·I.RPD RPD Limit Qualifiers
Analysis
Date
8/9/2010
8/9/2010
8/9/2010
8/912010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
Report Date: 8/1712010 Page 36 of 70
AU anaI)'SA!5 applk4lblt: to tlw. CWA. SDWA. and RCRA are perfonuoo 111 acc:urdmI::t! tu NELAC protocols. Pertinent safnpling lnfunllatioll is loafed on lilt! anacht!d COCo TIds ff!por11s provided for thf! exr.luslve use of the~. PrtvUeges of subsequent use of rile name Dr lids mnlpany or any Dlt!mber u( Its staff. or reproductJuu
aftllis tepOO in connection. with the OKhmbl!IMMi. VCUlua.kmW' SOlie of flny pmduct or}K0ct5S. or woolluectiou wilh the r~lkaUot\()fthls n!poc1 for any purpose: OtlllH than (or the atid~ wilt be grAnted only on conT'cd. TIlls company accepts no rfSpORSlbtltty except (0( the due pnfomwmce of lI~pP.Ctioll an&'at anaJysLs in goOO
rallh and aa:on1.'1g to I hi! NIH of ttw.. ~ aud or sdtmce.
A AMERICAN WEST ANALYTICAL LABORATORIES Kyle F. Gross
463 West 3600 South Laboratory Director
Salt Lake City. UT 84115 Jose Rocha
[phone]fi. ToU Free (888) 26J.1168fi. Fax [phone] QA Officer e--maU: [e-mail]. wfb: \Vww.iilwal-labs.com
QC SUMMARY REPORT
ClieDt: Denison Mines
Lab Set ID: 1008101 Dept: MSSV
Project: Annual Tailings QC Type: MBLK
Amount Original Analysis
Sa.ple ID AIUI1)1e Uaits Method Result Spiked Amount 'Y.REC Limits 'Y.RPD RPD Limit Qualifiers Date
MB-7848 Hexachlorobutadiene /lglL SW8270D < 10.0 8/9/2010
MB-7848 Hexachlorocyc1opentadiene /lglL SW8270D < 10.0 8/9/2010
MB-7848 Hexachloroethane /lgIL SW8270D < 10.0 8/9/2010
MB-7848 lndeno( 1,2,3-cd)pyrene /lg!L SW8270D < 10.0 8/9/2010
MB-7848 lsophorone /lglL SW8270D < 10.0 8/912010
MB-7848 Naphthalene /lglL SW8270D < 10.0 8/9/2010
MB-7848 Nitrobenzene /lglL SW8270D < 10.0 8/912010
MB-7848 N-Nitrosodimethylamine /lg!L SW8270D < 10.0 8/9/2010
MB-7848 N-Nitrosodiphenytamine /lglL SW8270D < 10.0 8/9/2010
MB-7848 N-Nitrosodi-n-propylamine /lglL SW8270D < 10.0 8/9/2010
MB-7848 Pentachlorophenol /lglL SW8270D < 10.0 8/9/2010
MB-7848 Phenanthrene 1Ig!L SW8270D < 10.0 8/9/2010
MB-7848 Phenol /lglL SW8270D < 10.0 8/9/2010
MB-7848 Pyrene /lglL SW8270D < 10.0 8/9/2010
MB-7848 Pyridine /lg!L SW8270D < 10.0 8/9/2010
MB-7848 Surr: 2,4,6-Tribromophenol %REC SW8270D 42.2 80.00 52.8 10-165 8/912010
MB-7848 Surr: 2-Fluorobiphenyl %REC SW8270D 12.2 40.00 30.6 18-113 8/9/2010
MB-7848 Surr: 2-Fluorophenol %REC SW8270D 19.9 80.00 24.9 10-121 8/9/2010
MB-7848 Surr: Nitrobenzene-d5 'YeREC SW8270D 12.7 40.00 31.7 17-133 8/9/2010
MB-7848 Surr: Phenol-d6 %REC SW8270D 13.3 80.00 16.6 10-124 8/9/2010
MB-7848 Surr: Terphenyl-d14 'Y.REC SW8270D 42.5 40.00 106 28-163 8/9/2010
Report Date: 8/17/2010 Page 37 of70
All ilDIlIyses IIppllalde 10 ttw CWA. SOWA. II" RCRA are perfonu«l tn acowdaoce to NELAC protocols. Pertinent Slmplbtg InruCIl.oltkm Is locIlecJ on tI .. actacht!d COCo nils report is proYkled for tM exclusive use of lilt addr~ PrtvUet,'t!S or !t,.bsequelll use or IIII! nante of this C':OOlpBJlY or any member of Its staff. 01' reproduction
ofthb repvtt b. cotlI~k»twtth Uw ad\~~. prtMnoUlmor sa1e of any product or process. OJ wamnectlot. wUh tl~ Je-pOOlkatJonof this ~ for any purpose Olher lhan far the ~ wm b@grantl!Clnnly on contact.1111s mmpany acapcs no ~lIsihl1tty exapt fm U" due p8ff0mI&lCl! of ln5pedlon and/or analysts In good
faith and ocrAlldhog 10 ""' ruw.. of rho , ........ of sciellce.
A
CHeat: Denison Mines
Lab Set ID: 1008101
Project: Annual Tailings
Sample ID Aaal)1e
10081OI.oo2BMS 1,2,4-Trichlorobenzene
100810 1-002BMS 1,4-Dichlorobenzene
100810l-002BMS 2,4,6-Trichlorophenol
]008101-OO2BMS 2,4-Dimethylphenol
l008101-OO2BMS 2,4-Dinitrololuene
1008101-OO2BMS 2-Chlormaphlhalene
l00810l-002BMS 2-Cblorophenol
100810l-002BMS 4,6-Dinitro-2-rnethylphenol
l0081OI-002BMS 4-Chloro-3-rnethylphenol
]008101-002BMS 4-Nitrophenol
1008 I 0l-002BMS Acenaphthene
l0081OI-002BMS Benzo(a)pyrene
l008101-002BMS N-Nitrosodi-n-propylamine
l00810l-002BMS Pentachlorophenol
lOOSlOI-002BMS Phenol
l00SI0I-002BMS Pyrene
l0081OI-002BMS Surr: 2,4,6-Tribromophenol
l0081OI-002BMS Surr: 2-Fluorobipbenyl
l00810l-002BMS Surr: 2-Fluoropbenol
10081OI-002BMS Surr: Nitrobenzene-d5
10081OI-002BMS Surr: Phenol-d6
1008101-OO2BMS Surr: Terpbenyl-d14
AMERICAN WEST ANALYTICAL LABORATORIES
463 West 3600 South
Uaits
~glL
~gIL
~glL
~glL
~glL
~glL
~glL
"giL
"giL
"giL
"giL
"giL
"giL
"giL
"giL
"giL
O/OREC
~.REC
%REC
%REC
%REC
'Y.REC
Salt Lake City. VT 84115
(1101) 263·_. ToU F ... (l18li) 263·8686. Fax [phone]
r-~n: [e-mail]. wro: \vww.awal-labs,com
QC SUMMARY REPORT
Dept: MSSV
QCType: MS
Amount Original
Metbod Result Spiked Amount °leREC
SW8270D < 10.0 80.00 0 10.9
SW8270D < 10.0 80.00 0 0
SW8270D 58.8 80.00 0 73.5
SW8270D 38.8 80.00 0 48.5
SW8270D < 10.0 80.00 0 0
SW8270D 21.5 80.00 0 26.8
SW8270D 27.9 80.00 0 34.8
SW8270D 10.4 80.00 0 13.1
SW8270D 60.9 80.00 0 76.2
SW8270D < 10.0 80.00 0 0
SW8270D 32.1 80.00 0 40.1
SWS270D 123 SO.OO 0 154
SW8270D 54.8 80.00 0 68.6
SW8270D 72.6 80.00 0 90.8
SW8270D 36.7 80.00 10.70 32.5
SWS270D 73.6 80.00 0 92.0
SWS270D 68.4 SO.OO 85.6
SW8270D 11.4 40.00 28.6
SW8270D 23.5 80.00 29.4
SW8270D 0.340 40.00 0.850
SW8270D 27.1 SO.OO 33.8
SW8270D 42.3 40.00 106
I _ J.IaIrix :.piAe recovery indicates matrix inteiference. The method is in control as indicated by the Les.
S -Surrogate recoveries o"tside the control limits. Repreparation and reanalysis and/or MS samples yielded similar res "Its indicating matrix interference.
Limits
20-107
11-90
10-223
10-176
21-191
12-132
20-107
20-250
10-136
10-135
21-113
15-169
10-133
10-131
10-71
23-150
14-159
10-124
10-106
10-180
10-122
10-199
Kyle F. Gross
Laboratory Director
Jose Rocha
QAOfficer
-I.RPD RPD Limit Qaalifien
S
Report Dale: 8/17/2010
Aaalysis
Date
8/9/2010
8/9/2010
8/9/2010
8/912010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
S/9/2010
8/912010
8/9/2010
S/9/2010
8/9/2010
S/9/2010
8/9/2010
8/9/2010
8/9/2010
8/912010
8/9/2010
Page 38 of70
All analy!leS appUotbJe 10 IltI! CWA. SDWA. and RCRA are ptrlonll«l in acCOfWmce to NELAC protocols. Penlnenl Sdl11vllilg lnfonnatian Is located on the tthacllt.'lJ COCo Thls report is provided for die exclusive I.N! of the addr~. Privileges of sulJs.equenl use of the "Mrue of lhb oompany err any UtetnlJer of Its staff. or re~oduclilJll
ofthb w.JKl" lncumectknt withfbe ad\~UI!lll. promoOc:m or sa~ of any product nr process. or In mnMc:tOl wllh the r~Ik:at1ou oflhLs report for allY pulpDW od'lef than far the ~ will be grantt!d Qnly on contact. TItls almpany accepb no teSpOltsiblUty ext:ept for the dLie perfom~ of lnspection llJ~o( analy.cls In good
[idfh and ar:cwLlln,; h» I~ N~ of tile trd .,111 of sclena~.
A
Client: Denison Mines
Lab Set ID: 1008101
Project: Annual Tailings
Sa.ple lD AUl)1e
lOOSIOI..oo2BMSD 1,2,4-Trichlorobenzene
l00SIOI..oo2BMSD 1,4-Dichlorobenzene
lOOSI0l-002BMSD 2,4,6-Trichlorophenol
lOOSIOI-002BMSD 2,4-Dimethylphenol
lOOS10l-002BMSD 2,4-Dinilrololuene
lOOSI0l-002BMSD 2-Chloronaphlhalene
lOOSI0l-002BMSD 2-Chloropbenol
lOOSI0l-002BMSD 4,6-Dinilro-2-melhylphenol
100810l-002BMSD 4-Chloro-3-methylphenol
l008101-OO2BMSD 4-Nitrophenol
lOOSlOl..oo2BMSD Acenaphthene
100810l-002BMSD Benzo( a)pyrene
l008101-OO2BMSD N-Nilrosodi-n-propylamine
l008101-OO2BMSD Pentachlm-ophenol
lOOSIOI-002BMSD Phenol
l00SI0I-002BMSD PyreDe
lOO810l-002BMSD Surr: 2,4,6-Tribrornophenol
1008 I 0l-002BMSD Surr: 2-Fluorobipbenyl
l00810l-002BMSD Surr: 2-Fluorophenol
lOOSI0I-002BMSD Surr: Nitrobenzene-d5
l008101-OO2BMSD Surr: Phenol-d6
lOOSIOl..oo2BMSD Surr: Terpbenyl-d14
AMERICAN WEST ANALYTICAL LABORATORIES
463 West 3600 South
Units
,..gIL
,..g!L
,..gIL
,..glL
,..glL
IIgIL
IIgIL
IIgIL
IIgIL
,..glL
,..gIL
,..g!L
,..glL
,..glL
,..gIL
IIg1L
%REC
%REC
%REC
%REC
%REC
%REC
Salt Lake City, UT 84115
(!!OJ) 263-8686. ToU Free (888) 26l-8686. Fax [phone]
e-mail: [e-mail]. web: www.awal-Iabs.com
QC SUMMARY REPORT
Dept: MSSV
QCType: MSD
Amount Ori~inal
Method Result Spiked Amount ·;'REC
SW8270D < 10.0 80.00 0 1I.S
SWS270D < 10.0 80.00 0 0
SWS270D 61.6 SO.OO 0 77.0
SWS270D 43.2 SO.OO 0 54.0
SW8270D < 10.0 SO.OO 0 7.65
SW8270D 21.8 SO.OO 0 27.3
SW8270D 30.9 80.00 0 38.6
SWS270D 10.5 80.00 0 13.1
SW8270D 71.5 80.00 0 89.4
SW8270D < 10.0 SO.OO 0 0
SW8270D 35.1 80.00 0 43.8
SW8270D 128 80.00 0 160
SW8270D 54.0 80.00 0 67.6
SW8270D 75.9 80.00 0 94.9
SWS270D 39.8 SO.OO 10.70 36.4
SW8270D 73.5 80.00 0 91.9
SW8270D 76.2 80.00 95.3
SW8270D 12.5 40.00 31.2
SW8270D 26.3 80.00 32.9
SW8270D 0.290 40.00 0.725
SWS270D 29.0 80.00 36.2
SWS270D 43.7 40.00 109
J _ Matrix 3pi"e recovery indicate~ matri:% interference. The method i~ in control Q$ indicated by the LeS.
S -SIIrrogate recoverie3 Ollt3ide lhe control/imits. REpreparalion and reana/y3is and/or MS samp/e3 yielded similar reall/ts indicating malra interference.
Limits
20-107
1I-90
10-223
10-176
21-191
12-132
20-107
20-250
10-136
10-135
21-113
15-169
10-133
10-131
10-71
23-150
14-159
10-124
10-106
10-ISO
10-122
10-199
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
'Y.RPD RPD Limit Qaalifien
0 25
0 25
4.67 25
10.9 25
0 25
1.53 25
10.3 25
0.477 25
16.0 25
0 25
8.88 25
3.86 25
1.47 25
4.40 25
8.10 25
0.150 25
S
Analysis
Date
8/9/2010
8/9/2010
8/9/2010
S/9/2010
S/9/2010
8/9/2010
S/9/2010
8/9/2010
8/9/2010
S/9/201O
8/9/2010
8/912010
8/9/2010
8/9/2010
8/912010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
Report Dale: 8/1712010 Page 39 of70
AU BnIIIyses ~Ir to fill! CWA. SDWA. will RCRA are ptrlOI'I11i1ed in 'llXUnJ:Ma to NELAC Pr11'0CtIb. S"d1l1ldll iIi'np~ W'!R'UlirJ'UU li ~r .. aI on the .tUM:hed. COCo Thls report Is provided for tht excha~lvt! use Dr the addre~. Prtvllegt!S af wbseqllt!nl Us.! of the u.une of Ihls mmpamy nr any memiws of lIS Siltfl'. or reproductiull
u11~~n'T b1 ~b, wMt "* .-:h'l.'ftHWmMltd. p'OtuoUoo 01 :AlIt of:my .1fUducs or pr~ CIt b. COOIWI.iocl \'Iltb d. ,.,..puldIQUon of Iht; O!poI1 ror Imy purpose ()tller than for tiM! ~ wlJl be granted only ou r.outad. TWs mmpally accepts no responsibility f".xcept For the due perfonnanr.e of blSpedJon Klldfor analysis b. good r-allt1 ullIIl'!OWtlq 10 the ruJP.S of the tJwIP.. and or ~
A
Client: Denison Mines
Lab Set 10: 1008101
Project: Annual Tailings
Sa.pIe ID A.al)'te
LCS VOC 080510B Tetrahydrofuran
LCS VOC 080510B Surr: 1 ,2-Dichloroethane~4
LCS VOC 08051 OB Surr: 4-Bromotluorobenzene
LCS VOC 080510B Surr: Dibromofluoromethane
LCS VOC 080510B Surr: TolueDe~8
LCS VOC 080910A Tetrahydrofuran
LCS VOC 080910A Surr: 1,2-Dichloroethane~
LCS VOC 0809IOA Surr: 4-Bromofluorobenzene
LCS VOC 080910A SUIT: Dibromotluoromethane
LCS VOC 080910A Surr: Toluene~8
AMERICAN WEST ANAL YTICAL LABORATORIES
463 West 3600 South
Units
JlgIL
%REC
%REC
O/.REC
%REC
"giL
o/.REC
%REC
%REC
%REC
Salt Lake City, UT 84115
(801) Z63-8686. ToU Free (888) 263·8686. Fax [phone]
e-mail: [e-mail]:mvw.awal-labs.com
QC SUMMARY REPORT
Dept: MSVOA
QCType: LCS
Amount Original
Metbod Result Spiked Amount -I.REC
SW8260C 18.6 20.00 0 93 .2
SW8260C 50.4 50.00 101
SW8260C 50.2 50.00 100
SW8260C 48.8 50.00 97.6
SW8260C 49.8 50.00 99.7
SW8260C 17.4 20.00 0 87.0
SW8260C 51.2 50.00 102
SW8260C 47.7 50.00 95.5
SW8260C 49.9 50.00 99.7
SW8260C 48.6 50.00 97.2
Limits
43-146
69-132
85-118
80-120
81-120
43-146
69-132
85-118
80-120
81-120
Kyle F. Gross
Laboratory Director
Jose Rocha
QAOfficer
·I.RPD RPD Limit Qualifiers
Allalysis
Date
8/5/2010
8/5/2010
8/5/2010
8/5/2010
8/5/2010
8/912010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
Report Dale: 8/17/2010 Page 40 of70
All analyst!S applJcabJe 10 tJlr CW A.. SDWA. ard RCRA are peJfonued 10 -=curdimce to NELAC protocols. Pertjnml sampling lnfomlittJon k Iocoiled on the .. "ached COCo This report Is provkled Cor thP axdusive use DC the addressee. PrlvUP.g2S of Sllbsequenl use of the twine of this company or any member of Its 5tdf. Of rrproducUon
of dlis. report hI CDIlIlKtion wid, the "'t!ftlw.II~nl pmnKMkm or sa~ of idly product or prot;ess. or In cnnnBctklrl with rile re-publkatJoli of this report for any pur~ other than for the addressee wlU be gralltM only on contld. TIlls rnmpRuy accepls no responsibility ex~pt for the due perfOllDlUlI:e of inspection andIor analysis in good
fallh and according 10 tt.r rules of t~ Ira. iilUd of scilmr.e.
A
CIieDt: Denison Mines
Lab Set ID: 1008101
Project: Annual Tailings
S ... plelD A •• 1)1e
MB VOC 08051 OB Tetrahydrofuran
MB VOC 08051 OB Surr: 1,2-Dicbloroethane-d4
MB VOC 080S] OB Surr: 4-Bromotluorobenzene
MB VOC 080510B Surr: Dibromotluoromethane
MB VOC 080510B Surr: Toluene-dS
MB VOC 08091 OA Tetrahydrofuran
MB VOC 080910A Surr: 1,2-Dichloroethane44
MB VOC OS0910A Surr: 4-Bromotluorobenzene
MB VOC 080910A SUIT: Dibromotluoromethane
MB VOC OS09IOA Surr: Toluene-dS
AMERICAN WEST ANAL YTICAL LABORATORIES
463 West 3600 South
Uaits
"giL
%REC
%REC
%REC
%REC
"giL
",.REC
%REC
",.REC
%REC
Salt Lake City. UT 84115
(l1OJ) 263-8686. Toll Fr .. (888) 263-116116. Fax (IIOJ) 263-11681
e-mail: [e-mail]:\v\.rW.awal-labs.com
QC SUMMARY REPORT
Dept: MSVOA
QC Type: MBLK
Amouot Origioal
Metbod Result Spiked Amouot ·I.REC
SW8260C <2.00
SW8260C S1.2 SO.OO 102
SW8260C SI.9 50.00 104
SW8260C 47.8 50.00 95.6
SW8260C 50.8 50.00 102
SW8260C < 2.00
SW8260C 52.5 50.00 105
SW8260C 50.4 50.00 101
SW8260C 49.2 50.00 98.3
SW8260C 49.2 50.00 9S.4
Limits
69-132
85-] 18
80-120
SI-120
69-132
85-IIS
80-120
SI-120
Kyle F. Gross
Laboratory Director
Jose Rocha
QAOfficer
·I.RPD RPD Limit Qallifien
ADalysis
Date
8/5/2010
8/S/201O
8/5/2010
8/5/2010
815/2010
8/9/2010
8/9/2010
8/9/2010
8/9/2010
S/9/2010
Report Date: 8/1712010 Page 41 of70
AU .. ~ appUable to 1he CWA. SDWA. lind RCRA arl:! perionned In acrurdIJlce to NELAC protocob;. PmineJlt sampling infm1Ulttlon b; JDCillrd on the IIInaclli!d COCo nll!li report is provitJet1 for Ibe excl~tvlt we of the iMldressee. Privtlegt=S tt( ~ltWfll ~ of 11-= name of tJd1. allUp8J1Y or any member of Us shiff. 01 frprodud.lon
of IIUs report In cOllDl!dlon wltb \hie> ad\'ertlwlnlml. "Dlllo.lon or ale of any product or pl'DCI!55. Dr hi r~nuw:'km with 11M!' re-pubJkatkm of Ihls ntpon for any purpo!le other than for the addl'P.SSl'e wIU be granted only on amt.ilcl. nlls company accepts no responslbUIty pxcp.p' ror the due perfnmllllllfE of br;pection andfor aualysis bl cnod
faith alld .K:conJlug 1Il1Jw. naJes Dl ttw. trade-and of selima!.
A
Clieat: Denison Mines
Lab Set ID: 1008101
Project: Annual Tailings
Sa..,1e1D Aaal)1e
1008101~2AMS Tetrahydrofuran
l0081OI-002AMS Swr: 1,2-Dichloroetbane-d4
1008101~2AMS Surr: 4-Bromolluorobenzene
l008101~2AMS Swr: Dibromoftuorometbane
1 008 1 0l-002AMS Surr: Toluene-dS
1008071 ~2AMS Tetrahydrofuran
lOOS071~2AMS Sure: 1,2-Dichloroethane-d4
lOOS071~2AMS Surr: 4-Bromofluorobenzene
1008071~2AMS Surr: Dibromofluoromethane
I00S071~2AMS Surr: Toluene-dS
AMERICAN WEST ANALYTICAL LABORATORIES
463 West 3600 South
Uaits
"gIL
%REC
%REC
~oREC
'Y.REC
"giL
%REC
%REC
~.REC
%REC
Salt Lake City. UT 84115
(IIOJ) 263·8686. ToU Free (1!88) 263·8686. Fax (IIOJ) 263-8687
e-mail: [e-mail]. web: www.awal·1abs.com
QC SUMMARY REPORT
Dept: MSVOA
QCType: MS
Amount Original
Mdbod Result Spiked Amount "/eREC
SWS260C 277 200.0 0 139
SW8260C 530 500.0 106
SW8260C 502 500.0 100
SWS260C 500 500.0 100
SWS260C 492 500.0 9S.4
SW8260C 199 200.0 0 99.6
SW8260C 524 500.0 105
SW8260C 4S4 500.0 96.S
SWS260C 507 500.0 101
SW8260C 492 500.0 9S.4
Limits
43-146
77-144
80-123
SO-124
80-125
43-146
77-144
80-123
80-124
80-125
Kyle F. Gross
Laboratory Director
Jose Rocha
QAOfficer
"/eRPD RPD Limit Qualifiers
Analysis
Date
8/5/2010
8/5/2010
8/5/2010
8/5/2010
S/5/2010
S/9/2010
S/9/2010
S/9/2010
S/912010
8/9/2010
Repon Dale: 8/17/20 I 0 Page 42 of 70
AU analysl!S ..,~bR 10 tI~ CWA. SDWA, aud RCRA are perfonned In accord.mee to NELAC protoculs. Pmirletti sampUug \nfunuadon Is located on the a"ad~ COCo This report .is pro"k1ed for 1m exclusive use af cbe ~. PrlvUeges of subsequent use of the nanle of Oils coUlpany or any member of lis staff. or reproduction
oCthh RpOIt lRcoeIInedlon with 1IIe ad\'W1~. pronWlkmor sale ofMny prodoct or proo!SS. or lnoouuecHo41 with the re-pobLk:aUOtI orlhls fl!port for Clny J"XPOSE other tt~\ for the addresst'e will be gnnledonly on contact. This company accep1S no respolL51bUtty except foc Ihe due performance of I.IlSpecllon illllYor auaalysb In good
faIth and acmrdi'lft ao ~ ndes 01 the Ihdr IUaI of scm)a!.
A
Client: Denison Mines
Lab Set lD: 1008101
Project: Annual Tailings
S.mple ID A •• 1)1e
IOOSI0l.oo2AMSD Tetrahydrofuran
lOOSIOI.oo2AMSD Surr: 1,2-Dichloroethane-d4
IOOSI0I-002AMSD Surr: 4-Bromofluorobenz.ene
lOOSI0l-002AMSD Surr: Dibromofluoromethane
lOO81OI-002AMSD Surr: Toluene-dS
IOO8071-OO2AMSD Tetrahydrofuran
IOO8071-OO2AMSD Surr: 1,2-Dichloroethane-d4
lOO8071-002AMSD Surr: 4-BromoflllOrobenzene
IOOS071-002AMSD Surr: Dibromofluoromethane
I OOS071-002AMSD Surr: Toluene-dS
AMERICAN WEST ANAL YTICAL LABORATORIES
463 West 3600 South
Uaits
~g1L
%REC
%REC
%REC
O/.REC
~g1L
O/.REC
%REC
O/.REC
%REC
Salt Lake City, UT 84115
(1101) 2ti3-IWIW. ToU Fr •• (888) 263-IWIW. Fax [phone]
e-mail: [e-mail]. web: www.awal-labs.com
QC SUMMARY REPORT
Dept: MSVOA
Method
SWS260C
SWS260C
SWS260C
SWS260C
SWS260C
SWS260C
SWS260C
SWS260C
SWS260C
SWS260C
Re~.lt
270
526
494
496
486
19S
520
4S3
501
487
Amount
Spiked
200.0
500.0
500.0
500.0
500.0
200.0
500.0
500.0
500.0
500.0
QCType: MSD
Original
Amount
o
o
'"I.REC
135
lOS
98.7
99.1
97.3
99.2
104
96.7
100
97.3
Limib
43-146
77-144
80-123
80-124
80-125
43-146
77-144
SO-123
80-124
SO-125
Kyle F. Gross
Laboratory Director
Jose Rocha
QAOfficer
ADIlysis
·/.RPD RPD Limit Q •• lifien Date
2.SI
0.453
25
25
S/5/2010
S/5/2010
8/5/2010
8/5/2010
8/5/2010
S/9/2010
8/9/2010
S/9/2010
S/9/2010
S/9/2010
Report Dale: 811712010 Page 43 of70
All 8ni11yses applkabh! 10 the CWA. SDW A. and RCRA are perfonned in ilCCOI<Jo.nce 10 NELAC pmtocols. Pertilll!llI sasnplblg inronnatJoli is localed on Ihe iIo"acJl~ COCo nils report is provkJed [Dr 1J1l~ excl~lve w:e 01 the adth~. PttvtJeges of subseqUl!ll1 Q5t! 01' tl~ nlut~ of ttus company or BIIY Dtellltw.r or Us staff, or reproduc:tkm
of'dlls report to CDlllItleCUon wlfh tlJ! aIh"Htlw.menl. protno.km IDI" sale of any product nr proc~. Dr In I"Dnnection wltb the re-publkation of Ihb; report for ~ny purpose utller 'han for tl .. ~ will be gml.l!li unly on contact. TIlls company accepts no responSibility I'!xcept for the dUf': pp,rfom.allctl of luspectlon and/or analysis In COOl!
faith and iCConJllIg'o 1h6! ruin of tilt tnM:Ie and of ~dellce.
Data Path
Data File
Aeq On
Operator
Sample
Mise
ALS Vial
Quantitation Report (QT Reviewed)
N:\SVOAB\RAW INSTRUMENT DATA 5973-B\AUGUST10\09AUGUSTIO\
B20 1008101-001B.D
9 Aug 2010 7:43 pm
ROBERT A MILLAR
1008101-001B
SAMP
7 Sample Multiplier: 1
Quant Time: Aug 10 13:48:58 2010
Quant Method C:\MSDCHEM\1\METHODS\QUANT-ORIGINAL-PERFECTFULLSV-X2 OB-09-10.M
Quant Title Semi-Volatile Compounds HP-GCMS 5973-B -
QLast Update Mon Aug 09 14:48:46 2010
Response via Initial Calibration
bundance
1.7&+07
1.6&+07
1.5&+07
1.4&147
1.3e+07
1.2&+07
1.1&+07
18+07
900000O
800000O
7000000
600000O
5000000
400000O
300000O
200000O
1000000
I ji
"l o!: 3i
"2 ~ f t II ~
l ~
I
!
o
g
~ i I-i N
... 1: ~
~ 1 J
.. .Jl I ~ ~
TIC: 820 1008101~018.D
~ 'V ~ I
... N
i iii
1 I ~
~/vw~;;:: ; o 'Ii i.', i ••• i'; Iii if" ii' I i j i' il 1"'" i i.' I' • i, , i •• , •• ,. i i i". j I i " i "" i' I i 'I" i' , if.. i I ' i 'I" \ I,' i' , I' Ii', i' i' i' II ii i
,> 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.0010.50 11.00 11.·5012.0012.5013.0013.5014.0014.5015.0015.5016.0016.50
QUANT-ORIGI ... 2_08-09-10.M Tue Aug 10 15 :09:39 2010 Page: 4
Report Date: 11/1712010 Page44of70
Data Path
Data File
Aeq On
Operator
Sample
Mise
ALS Vial
Quantitation Report (QT Reviewed)
N:\SVOAB\RAW INSTRUMENT DATA 5973-B\AUGUST10\09AUGUST10\
B21 1008101-002B.D
9 Aug 2010 8:10 pm
ROBERT A MILLAR
1008101-002B
SAMP
8 Sample Multiplier: 1
Quant Time: Aug 10 12:50:26 2010
Quant Method C:\MSDCHEM\1\METHODS\QUANT-ORIGINAL-PERFECTFULLSV-X2_08-09-10.M
Quant Title Semi-Volatile Compounds HP-GCMS 5973-B
QLast Update Mon Aug 09 14:48:46 2010
Response via Initial Calibration
1.7&+fJ7
1.6et07
1.5e+07
1.4&+07
1.3e+07
1.28+07
1.1&+fJ7
1&+07
9000000, -.
TIC: 821 100810HI02B.D
=: 1 t II~I ~l I ! e j ~ ~!a 15 "r _
50000001 A ! ~ 5j a; ~; i ie! ~ ~; I .
40000001 ~ 1 !Il ~ ~ ~ t · ~ i 0\. i!' . CD 1 30000001 , ~ '" ~. j
~ UJ E
20000001 ~ ~ j ! ,~"./Ir, ~L .,' I $ ~
1000000 I ~UJ.I"\U l-I\J-"W ' •. ~ ---. ---~ ~ Q,t .1 1 ,*,,"f'~ I; I I" iii' i i • I j' j' I' i i i., • i i i i ii" i i i. t., "1'" I, j' I \ I j" i I j ' • i 1'" 'I...."., I I .' i' i .' " , Iii" i ' i " i'" 'j"" i' I' ii' II j I i
lme-> 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00
QUANT-ORIGI ... 2_08-09-10.M Tue Aug 10 15:09:55 2010 Page: 4
Report Date: 8/1712010 Page 45 of70
Data Path
Data File
Aeq On
Operator
Sample
Mise
ALS Vial
Quantitation Report (QT Reviewed)
N:\SVOAB\RAW INSTRUMENT DATA 5973-B\AUGUSTlO\09AUGUSTI0\
B24 1008l0l-003B.D
9 Aug 2010 9:31 pm
ROBERT A MILLAR
1008101-003B
SAM?
11 Sample Multiplier: 1
Quant Time: Aug 10 13:01:35 2010
Quant Method C:\MSDCHEM\I\METHODS\QUANT-ORIGINAL-PERFECTFULLSV-X2_08-09-10.M
Quant Title Semi-Volatile Compounds HP-GCMS 5973-B
QLast Update Man Aug 09 14:48:46 2010
Response via Initial Calibration
TIC: 824 100810Hl03B.D
300000O i i a :;;
2800000 f ~ ~ t! I !! c .s. l! 2600000 ! ...
e e !12
2400000 e !12 .. ..
~ '9 ;;:,
2200000 .! "'" ! N ~
200000O ~ !!
t ~ z:
1800000 ~ !12
1600000 ~ ." l-i cl!. .to 1400000 N
~ 1200000 !! ~
1000000 III ~ "2 .. I 800000 I ~ III ~ 600000 u. ~ til 1 ~
400000 f
200000 1 u..Lhl J. t~ A j 1, 11
i i e ~
0 Ii" 'I" I i i j ,. 'I'" 'I' " i j " I i Ii ' "i '" 'I Ii " j"; I i Ii' 'I'; i 'I Ii ;'1' " 'I iii 'i i
ime-> 2.00 2.50 3.00 3.504.QIL4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.0010.5011.00 11.50 12.00 12.50 13.00 13.50 14.00 14.50 15.00 15.50 16.00 16.50
QUANT-ORIGI .•. 2_08-09-10.M Tue Aug 10 15:11:01 2010 Page: 4
Report Date: 8/17/20 I 0 Page 46 of70
Data Path
Data File
Aeq On
Operator
Sample
Mise
ALS Vial
Quantitation Report (QT Reviewed)
N:\SVOAB\RAW INSTRUMENT DATA 5973-B\AUGUSTI0\09AUGUSTIO\
B25 1008101-004B.D
9 Aug 2010 9:58 pm
ROBERT A MILLAR
1008101-004B
SAMP
12 Sample Multiplier: 1
Quant Time: Aug 10 13:31:00 2010
Quant Method C:\MSDCHEM\I\METHODS\QUANT-ORIGINAL-PERFECTFULLSV-X2_08-09-10.M
Quant Title Semi-Volatile Compounds HP-GCMS 5973-B
QLast Update Mon Aug 09 14:48:46 2010
Response via Initial Calibrati on
5500000
500000O
4500000
400000O
3500000
300000O I
i I ;
~
2500000 ;
200000O
1500000
1000000
500000
o
l i ;
j
I ;
N
TIC: 825 1008101-0048.0
6 j
t i ~ '\-~
: iii >. i ! ~
I~·I
~ '6 ~ .. ~ Q
~
i r'
i !Q
0~r,-{~~~,7~~~"1""1""1""1""1",,1,,,,1,,,,,,,,,""""""""-:-:-"~\""""i"""""""i""i'"'I'
.> 2.00 2.50 3.00 3.50 .. .00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.0010.5011.0011.5012.0012.50 13.0013.5014.0014.5015.0015.5016.0016.50
QUANT-ORIGI ... 2_08-09-10.M Tue Aug 10 15:11:13 2010 Page: 4
ReportDate: 8/17/2010 Page47of70
Data Path
Data File
Aeq On
Operator
Sample
Mise
ALS Vial
Quantitation Report (QT Reviewed)
N:\SVOAB\RAW INSTRUMENT DATA 5973-B\AUGUSTI0\09AUGUSTI0\
B26 1008101-005B.0
9 Aug 2010 10:26 pm
ROBERT A MILLAR
1008101-005B
SAMP
13 Sample Multiplier: 1
Quant Time: Aug 10 13:06:46 2010
Quant Method C:\MSDCHEM\1\METHODS\QUANT-ORIGINAL-PERFECTFULLSV-X2 08-09-10.M
Quant Title Semi-Volatile Compounds HP-GCMS 5973-B -
QLast Update Mon Aug 09 14:48:46 2010
Response via Initial Calibration
bundance
8500000
800000O
7500000
7000000
6500000
600000O
5500000
500000O
.. 500000
400000O
3500000
300000O
2500000
200000O
1500000
1000000
III 8 11 f ~ IL eli
500000. ~,
01-1
'!
I I ~ jl c ~.
~
'!
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j h;
;z
'" ~
(3
I
~ ~ J j
~
~
III ~ i ~ ~ N
TIC: 826 1008101-{)OSB.D
~ '9 ~ 1 1. ~
~
j
~ {
~ ...
~
j
i x ~ l ~
rl J
3 B
ine-> 2.00 2.50 3.OQ 3.50 .. .00 .. 50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.5011.00 11.50 12.00 12.50 13.00 13.50 14.00 14.50 15.00 15.50 16.00 16.50
QUANT-ORIGI ..• 2_08-09-10.M Tue Aug 10 15:11:22 2010 Page: 4
Report Date: 8/17/2010 Page 48 of70
Data Path
Data File
Acq On
Operator
Sample
Misc
ALS Vial
Quantitation Report (QT Reviewed)
N:\SVOAB\RAW INSTRUMENT DATA 5973-B\AUGUST10\10AUGUST10\
B27 1008101-006B.D
10 Aug 2010 4:32 pm
ROBERT A MILLAR
1008101-006B
SAMP
5 Sample Multiplier: 1
Quant Time: Aug 10 23:47:09 2010
Quant Method C:\MSDCHEM\1\METHODS\QUANT-ORIGINAL-PERFECTFULLSV-X2_08-09-10.M
Quant Title Semi-Volatile Compounds HP-GCMS 5973-B
QLast Update Mon Aug 09 14:48:46 2010
Response via Initial Calibration
TIC: 8271008101.0068.0
65000001 <> '6 j
60000001 i
55000001
~ 0-e I
:0
!Q t ~
50000001 I I i
45000001
40000001 t
i
j t ! i ~
5/
~
35000001
.2 II 8
I J
i= ' c
I ,J, ~
30000001
~ u-N a:
~ j ..
25000001
e I
!Q ~
20000001
II< I 1
...
c
J
I(
\1
15000001
I
1000000'
N
.. .j'
I 1! ! ~ I
500000
I ~
O~;-;J~~:~"':"'I ""I""I""I ""I""I""I""I""I'"'1""1""1 ""1 ' "'I ""I "~"~~"I "'~I ""I""I ""I""I ""I ' ,> 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.60 6.00 6.50 7.00 7.50 8.00 8.50 9.00
Page: 4 QUANT-ORIGI. .. 2_0B-09-10.M Wed Aug 11 11:5B:04 2010 ReponDate: 8/17/2010 Page490f70
Data Path
Data File
Aeq On
Operator
Sample
Mise
ALS Vial
Quantitation Report (QT Reviewed)
N:\SVOAB\RAW INSTRUMENT DATA 5973-B\AUGUSTlO\09AUGUST10\
B28 1008101-007B.D
9 Aug 2010 11:20 pm
ROBERT A MILLAR
1008101-007B
SAMP
15 Sample Multiplier: 1
Quant Time: Aug 10 13:34:24 2010
Quant Method C:\MSDCHEM\I\METHODS\QUANT-ORIGINAL-PERFECTFULLSV-X2_08-09-10.M
Quant Title Semi-Volatile Compounds HP-GCMS 5973-B
QLast Update Mon Aug 09 14:48:46 2010
Response via Initial Calibration
'Aboodance
1.1&+07
18+07
900000O
800000O
f i ;
7000000
600000O
500000O
III ~
400000O i ~
300000O N
200000O
1000000
j
i ~
.... o v J i ~ ; III ~ i ~ N
TIC: B2B l00B101"()07B.D
o
I "" '\-;
""' N
~ 1 '6 t I ~
i¥ 1 ~ .. ~ ~
l
8.00 8.50 9.00 9.50 10.00 10.5011.00 11.50 12.00 12.50 13.00 13.50 14.00 14.50 15.00 15.50 16.00 16.50
QUANT-ORIGI ... 2_08-09-10.M Tue Aug 10 15:11:41 2010 Page: 4
Report Date: 811712010 Page SO of70
Data Path
Data File
Aeq On
Operator
Sample
Mise
ALS Vial
Quantitation Report (QT Reviewed)
N:\SVOAB\RAW INSTRUMENT DATA 5973-B\AUGUSTI0\09AUGUSTI0\
B19 LCS-7848.D
9 Aug 2010 7:16 pm
ROBERT A MILLAR
LCS-7848
LCS
6 Sample Multiplier: 1
Quant Time: Aug 10 13:48:10 2010
Quant Method C:\MSDCHEM\1\METHODS\QUANT-ORIGINAL-PERFECTFULLSV-X2_08-09-10.M
Quant Title Semi-Volatile Compounds HP-GCMS 5973-B
QLast Update Mon Aug 09 14:48:46 2010
Response via Initial Calibration
TIC: 819 LCS-7848.D
800000O I E-o _.11 :;;
II: .,;
.iii
70000001 H t!i .J:! I ~iI II .. ~ ! "I ! Ii II: ~ e! ~
~ ~ iii ' a; I.! ~ i i _ . ~~ II: -. I ~ I • !, 'llir i I j ~I I J ifl iiJi .ft' I ~] I ~L!
25000001 .!Q It ~. 'J f ' 1 i ~ I I! .. .! .. "':::E-"" .!II
I! ~ t ! .. -;t i ' 20000001 'I .II "!. ~ ~ _ -.'.0 _ i <c '
5000001 Z Z
QUANT-ORIGI .•. 2_08-09-10.M Tue Aug 10 15:09:09 2010
II: I i
.,; I! ]I t .J:! -s. c ..
;;. N ~ ~ -~
a II ! I J
Page: 4
Report Date: 8/17/2010 Page 51 of70
Data Path
Data File
Aeq On
Operator
Sample
Mise
ALS Vial
Quantitation Report (QT Reviewed)
N:\SVOAB\RAW INSTRUMENT DATA 5973-B\AUGUST10\09AUGUSTlO\
B18 MB-7848.D
9 Aug 2010 6:48 pm
ROBERT A MILLAR
MB-7848
MBLK
5 Sample Multiplier: 1
Quant Time: Aug 10 12:38:23 2010
Quant Method C:\MSDCHEM\1\METHODS\QUANT-ORIGINAL-PERFECTFULLSV-X2_08-09-10.M
Quant Title Semi-Volatile Compounds HP-GCMS 5973-B
QLast Update Mon Aug 09 14:48:46 2010
Response via Initial Calibration
!Abundance
3500000
soooooo
2500000
20000001
15000001 . "8
10000001 i ;:;: .;,
500000'
" ! I
i ~ ~-
~
~
" 1 I! ~ '" Z
I ~
I I I"
... <b
.;, • N
TIC: B18 MB·7848.D
~ ~ ~ i l ~
~ ~ ~ i {!!. •
::i ~ t ~ i3 ~
N
1 j
~ 3! S !!l
I Il I~~ ~ 1\ ,/1, II . Il I!;, 1\ '~ '~ o , i i • iii i , I • i ~ I I i . i i i iii' i : ; , , i ; , : , I ii ' , i i • , f ii i i , i i • i I r :=; • , i i'i iii'" • Ii. , , iii 'VI i ' , iii i I ; ii , ; , iii , • i ' , , , i ' , , , I ; : , i ' , , ; i ii. , ii' i • I ' , •• \ i , i , Ii ••• i i lume-> 2 .. 00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 _6.00 6.50 7.00 7,60_ 8.00 8.50 9.00 9.50 10.00 10.50 11.00 11.50 12.00 12.50 13.00 13.50 14.00 14.50 15.00 15.50 16.00 16.50
QUANT-ORIGI ... 2_08-09-10.M Tue Aug 10 15:08:59 2010 Page: 4
Report Date: 8/1712010 Page S2 of70
Data Path
Data File
Aeq On
Operator
Sample
Mise
ALS Vial
Quantitation Report (QT Reviewed)
N:\SVOAB\RAW INSTRUMENT DATA 5973-B\AUGUST10\09AUGUST10\
B22 1008l01-002BMS.D
9 Aug 2010 8:37 pm
ROBERT A MILLAR
1008101-002BMS
MS
9 Sample Multiplier: 1
Quant Time: Aug 10 12:54:31 2010
Quant Method C:\MSDCHEM\1\METHODS\QUANT-ORIGINAL-PERFECTFULLSV-X2 08-09-10.M
Quant Title Semi-Volatile Compounds HP-GCMS 5973-B -
QLast Update Mon Aug 09 14:48:46 2010
Response via Initial Calibration
..
5000000
400000O
1 .!s ~I
t HIB ~ J< p~ Iii
Z ~ :!
QUANT-ORIGI ... 2_08-09-10.M Tue Aug 10 15:10:05 2010
~ ~D< ~~ !~
B a
TIC: B22 100810Hl02BMS.D
t
I ... o
I
tt L~ I! o " ii:
;
!i 15 i N
a:
I
i -K
l c;: a
j
.g
~ J tI>
III!
I I
Page: 4
Repon Date: 8/17/2010 Page 53 of70
Data Path
Data File
Acq On
Operator
Sample
Misc
ALS Vial
Quantitation Report (QT Reviewed)
N:\SVOAB\RAW INSTRUMENT DATA 5973-B\AUGUSTlO\09AUGUST10\
B23 1008101-002BMSD.D
9 Aug 2010 9:04 pm
ROBERT A MILLAR
1008101-002BMSD
MSD
10 Sample Multiplier: 1
Quant Time: Aug 10 12:55:29 2010
Quant Method C:\MSDCHEM\I\METHODS\QUANT-ORIGINAL-PERFECTFULLSV-X2_08-09-10.M
Quant Title Semi-Volatile Compounds HP-GCMS 5973-B
QLast Update Mon Aug 09 14:48:46 2010
Response via Initial Calibration
TIC: 823 1008101'()02BMSD.D
II: or ~
80000001 Ii I -. 0
a:
I t .. II: cz;., 60000001 I t ~ d ~ !a:.,i.~ I.! ~ lmill I ~! :a I![ :i!!iI
~ ~a..
~ . 1,11.
1
0
40000001 111-:' i.. .. l1L .§:*~'DB' r~~I Ef~n .111 I .1 1 rd: I I
QUANT-ORIGI ... 2_08-09-10.M Tue Aug 10 15:10:33 2010
II;. ~ ! :s. ! II;. ~ I " I I i i i i5 -a. ~ ~ f I ~ ~ I
Page: 4
Report Dale: 8/17/2010 Page 54 of 70
Quantitation Report
Data Path
Data File
Aeq On
Operator
Sample
Mise
C:\msdehem\1\DATA\Augl0-C\05AUGlO\
Y32LI0l1.D
ALS Vial
5 Aug 2010 8:12 pm
1008101-001A
SAM? 5.0ML/50ML 10F3
6 Sample Multiplier: 10
Quant Time: Aug 06 16:17:42 2010
Quant Method C:\MSDCHEM\1\METHODS\AFULLW_17.M
Quant Title VOA Calibration
QLast Update Sat Jul 24 12:31:54 2010
Response via Initial Calibration
!l\tlu'iiOance
)1 I ~
I ~
1800000
1600000
1400000 ,
1200000
1000000
800000 I
600000 I
400000 I
I ! ~ j c: 2 ~
200000
-A
"l. i E 2 ~ j
I 1
!
'" I ~ ~ Ul
I
Ime-> 2.00 2.50 3.00 3.50 4.00 4.50 5.00
AFULLW_l 7 .M Fri Aug 06 16:21 :39 2010
(QT Reviewed)
TIC: Y32L 1011 ]5\dala.ms
i ~ e Ii!
I
~ ~
f j
.2 .c u III i5
Q S ~ ~ "'-
1 i ~
c -§
'ij g .. g u: " Jl
~
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1-~
C 0 .. ~
. .. 1 ~ -.-.-.-
5.50 6.00 6.50_ 7.~ 7.50 8.00 6.~~ 9.00 9.50 10.00 10.50 11.QO 11.50
Page: 4 ReportDate: 8/]712010 PageSSof70
Quantitation Report
Data Path
Data File
Aeq On
Operator
Sample
Mise
C:\msdehem\1\DATA\Aug10-C\05AUG10\
Y33L1012.D
ALS Vial
5 Aug 2010 8:31 pm
1008101-002A
SAMP 5.0ML/50ML 10F3
7 Sample Multiplier: 10
Quant Time: Aug 06 16:18:45 2010
Quant Method C:\MSDCHEM\1\METHODS\AFULLW_17.M
Quant Title VOA Calibration
QLast Update Sat Jul 24 12:31:54 2010
Response via Initial Calibration
~b~nd~Ce -
200000O I
, 1800000
1600000
1400000
1 '~
1000000
800000 I
600000 I
I 400000
~ ~ ~ I § r: J 200000
o .A
l J! ~ 0 g
~ i 0
~ :>
j
ell J ~ ~ ... 0 N.
5 rn
fme-> _ ..?oo ..2-50 ..3.~ 3.50 4~OO 4.5Q §.OO
AFULLW_17.M Fri Aug 06 16:22:13 2010
(QT Reviewed)
TIC: Y33L1012.D\data.ms
'Ii ~ ~ ~ .~ .8 ~ I e .lI .t= 2 0 " ~ ~ ~ ell. .Sl .. ~ C? " 2 .... .. I I'! 0 ~ g Iii g '5 iL E ~ e m
:; rn
~ ~ J :P < <'II :;;
0
.. ~ ~ .!l
]-< 0 0 ..
1 ~
lit 1\ J..
5.50_ 6.00 6.5O __ 7&Q. 7,50 ~",-Qo 8,s_0 __ 9JlL 9.50 1.O"!~Q.--1Q...50 __ 11,Q9 11 .... 50_
Page: 4 Report Date: 8/17/2010 Page 56 of 70
.Quantitation Report
Data Path
Data File
Acq On
Operator
Sample
Mise
ALS Vial
C:\msdchem\1\DATA\Aug10-C\05AUGIO\
Y36L1013.D
5 Aug 2010 9:29 pm
l008101-003A
SAMP 5.0ML 10F3
10 Sample Multiplier: 1
Quant Time: Aug 06 16:13:08 2010
Quant Method C:\MSDCHEM\1\METHODS\AFULLW_17.M
Quant Title VOA Calibration
QLast Update Sat Jul 24 12:31:54 2010
Response via Initial Calibration
\O;bundance ----
200000O
1800000
1
1800000
1400000
1200000
1000000 I
8000001
6000001
400000\
200000
I Tlme-> 2.00 2.50 ;l.00 3.50 4.00
AFULLW_17.M Fri Aug 06 16 :19 :41 2010
~ ~ !! J .2 'Ii 8 I a j
'5 0
j <it
~ 0
i "t> f
-"-
4.50 5.00
I IL o !il
(QT Reviewed)
TIC: Y36L1013.D'ldala.ms
,
5.50
~
1lL I' 'I 6.00 8.50
i ~ I ~ 0
0 !il
7.00
~-
8 ~ .§
9 "" ~ ." I 0 ~ 0 !ii
~ 6 !! III
~ <Il
1
7.50 8.00 8.50 9.00
Page: 4
I
9.50 10.00 10.50 11.00 11.50
Report Date: 8/1712010 PageS7of70
Quantitation Report
Data Path
Data File
Aeq On
Operator
Sample
Mise
C:\msdehem\1\DATA\AuglO-C\05AUGI0\
Y37LI014.D
ALS Vial
5 Aug 2010 9:48 pm
1008101-004A
SAMP 5.0ML/50ML 10F3
11 Sample Multiplier: 10
Quant Time: Aug 06 16:25:04 2010
Quant Method C:\MSDCHEM\I\METHODS\AFULLW_17.M
Quant Title VOA Calibration
QLast Update Sat Jul 24 12:31:54 2010
Response via Initial Calibration
r,tili~
1900000 I
1800000 I
1700000 I
I 1600000
1500000 I
1400000 I
1300000 I
I 1200000
1100000 I
1000000 I
900000 I
I
I
800000
700000
600000
500000
400000
300000
200000
100000
o -
(.
f? 1/1
"
tl
I·
fi
, ,
i E ~ ~ E ~ 0 ~ '" g ~
A
CIt ~ ti j
.>I 0 ~
" " '"
i!!!!!~> ~~ _2,~ ~.QO 3.,~O 4,00 4.5Q 5.@
AFULLW_17.M Fri Aug 06 16:25:15 2010
(QT Reviewed)
TIC: Y37Ll014.D'ldata.ms
~
~ "i'
~
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.,; j .<:
0 <Il.. i!j
~ ~ !-
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IL " .i! ~
A
~.50 6.00 6~~ _7.00 7,50 8.00 8.~ 9.00 9.50 10.00 10.~OO 11 .50
Page: 4 Report Dale: 8/1712010 Page 58 of70
Quantitation Report
Data Path
Data File
Aeq On
Operator
Sample
Mise
C:\msdehem\l\DATA\AuglO-C\05AUG10\
Y38L1015.D
ALS Vial
5 Aug 2010 10:06 pm
1008101-005A
SAMP 5.0ML/50ML lOF3
12 Sample Multiplier: 10
Quant Time: Aug 06 16:29:45 2010
Quant Method C:\MSDCHEM\1\METHODS\AFULLW_17.M
Quant Title VOA Calibration
QLast Update Sat Jul 24 12:31:54 2010
Response via Initial Calibration
1Abundance
1900000
1800000
1700000
1600000
1500000
1400000
1300000
1200000
1100000
1000000
900000
800000
700000
600000
500000
400000
300000
200000
100000
o
'" ~ ~ C! E 0 ~ D i 1
<IJ J ~ .51 .<: .11 0 <'t
5 Ul
il]me-> 2.00 2.50 3.00 3.50 4.00 4.50 5.00
AFULLW_17.M Fri Aug 06 16:29:58 2010
(QT Reviewed)
TIC: Y38L1015.D\data.ms ,
j ]
~
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...
0 <IJ
0
~
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11 !ii
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!1 ~ C E !1 Ii: '" ~ 5 Ul
5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.90 10.~ .1LP_O _ 11:50
Page: 4 Report Date: 8/17/2010 Page 59 of70
Quantitation Report
Data Path
Data File
Aeq On
Operator
Sample
Mise
C:\msdehem\I\DATA\Aug10-C\05AUG;t.0\
Y39LI0l.6.D
ALS Vial
5 Aug 2010 10:25 pm
1008101-006A
SAM? 5.0ML/50ML 10F3
13 Sampie Multiplier: 10
Quant Time: Aug 06 16:15:13 2010
Quant Method C:\MSDCHEM\I\METHODS\AFULLW_17.M
Quant Title VOA Calibration
QLast Update Sat Jul 24 12:31:54 2010
Response via Initial Calibration
t bundance
1900000
1800000
1700000
1600000
1500000
1400000
1300000
1200000
1100000
1000000
900000
800000
700000
600000
500000
400000
300000
200000
100000
l1Ime-~
~ ~
AFULLW_17.M Fri Aug 06 16:20:42 2010
';}
" 1 0 ~ 8
I t-
o
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~ 2 ~ Sl ~ ~
j
(QT Reviewed)
TlC; Y39L1016.D\daia.ms
f ~ ~ .ll C 1 ~ ~
J
':ir j !
~
c ~
.s l ~.
l
Page: 4 ReportDate: 8/17/2010 Page60of70
Quanti·tation Report
Data Path
Data Fil e
Aeq On
OPerator
Sample
Mise
C:\msdchem\1\DATA\AuglO-C\05AUGlO\
Y40Ll017.D
ALS Vial
5 Aug 2010 10:44 pm
lOOS10l-007A
SAMP 5.QML/50ML 10F3
14 Sample Multiplier: 10
Quant Time : Aug 06 16:31:05 2010
Quant Method C :\MSDCHEM\1 \METRODS \AFUL~W_17 .M
Quant Title VOA Calibrati on
QLast Update Sat Jul 24 12:31 :54 2010
Response via Initial Cali bration
~bundaJ1ce-
2000000
1900000
1800000
1700000
1600000
1500000
1400000
1300000
1200000
1100000
1000000
900000
800000
700000
600000
500000
400000
300000
200000
100000
o
!! s J ~ II ~
"!. !! £ ~ c ~ 1l E ~ a: t i
<4-!! i ~ a '".
j
me-> 2.00 2.50 3.00 3.50 4.00 4.50 5.00
AFULLW_17.M Fri Aug 06 16:31:14 2010
(QT Reviewed )
TIC: Y40Ll017.D\dalams
;g
~ ~
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JI .8 '? .I>
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5.50 6.00 6.50 7.00 7.sp 8.00 ~.50 9.00 ~.50 19.0() 10.~ J l.C!Q 11.50
Page : 4 Report Date: 8/1712010 Page 61 of10
Quantitation Report
Data Path
Data File
Acq On
Operator
Sample
Mise
ALS Vial
C:\msdchem\1\DAIA\AuglO-C\09AUGlO\
Y87Ll018 .D
9 Aug 2010 1 :51 pm
1008101-008A
SAMP 5 .0ML 10F3
6 Sample Multiplier: 1
Quant Time: Aug 10 12:21:16 2010
Quant Method C:\MSDCHEM\l\MEIHODS\AFULLW_17.M
Quant Title VOA Calibration
QLast Update Sat Jul 24 12:31:54 2010
Response via Initial Calibration
'Abundance-
1800000
1700000
1600000
1500000
1400000
1300000
1200000
1100000
1000000
900000
800000
700000
600000
500000
400000
300000
200000 !
100000 ~
06 I I' ITime-> 2.00 2.50 3.00 3.5Q 4.QO
AFULLW_17 .M Tue Aug 10 12:23:27 2010
'" 1 !l ~ 1 R o
'k ~
I ~
~
~
I t::.
4.50 5.00
i i ~ ~
(QT Reviewed)
TIC: Y87L1018.Dl.data.ms
5.50
• 1
6.00
"l
,
6.50
iii
~ i 0
~
7·00
<4. i ~ ~ 1 III
~
1 7.50
t
i! t .Ii ~
:': ~
~.OO
_A
8.50 9.00 9.50 10.00 19 . .50 11.po 11.50
Page : <I Report Date: 1111712010 Page 62 of70
Data Path
Data File
Aeq On
Operator
Sample
Mise
ALS Vial
Quantitation Report
C:\msdehem\1\DATA\Aug10-C\05AUG10\
Y29LCS20.D
5 Aug 2010 7:15 pm
LCS VOC OB0510B
LCS SEE COVERSHEET FOR ID AND AMOUNTS
3 Sample Multiplier: 1
Quant Time: Aug 05 19:27:23 2010
Quant Method C:\MSDCHEM\1\METHODS\AFULLW_17.M
Quant Title VOA Calibration
QLast Update Sat Jul 24 12:31:54 2010
Response via Initial Calibration
[I1me->
AFULLW_17.M Fri Aug 06 16:05:48 2010
~ ~ j
II.
~
(Not Reviewed)
TIC: Y29LCSZo.O\dalams
.. ~ !! ~ ~
I! ~ ~
E
II Jg
i
i
i I! !I I~
~
I ! ~ ~ ffi ~
Iii .. -:J:
Page: 4 Report Date: 8/17/2010 Page 63 of70
Data Path
Data File
Aeq On
Operator
Sample
Mise
ALS Vial
Quantitation Report
C:\msdehem\1\DATA\Aug10-C\09AUG10\
Y84LCS20.D
9 Aug 2010 12:54 pm
LCS VOC 080910A
LCS SEE COVERSHEET FOR ID AND AMOUNTS
3 Sample Multiplier: 1
Quant Time: Aug 09 13:06:16 2010
Quant Method C:\MSDCHEM\1\METHODS\AFULLW_17.M
Quant Title VOA Calibration
QLast Update Sat Jul 24 12:31:54 2010
Response via Initial Calibration
f"L ----.----
3200000
300000O
2800000
2400000
2200000
200000O
18OOOJO
1600000
1400000
1200000
1000000
III
"J
i i I i Ii i s li j~ ...
AFULLW_17.M Tue Aug 10 12:19:35 2010
1 I ~ u.
~
(Not Reviewed)
_. -iiC:Y84LCS20:O\daia.ms
~ I!! ~ ~ t: OJ
~ I ..
I
i i!
I I ! i ~
I~ 1
":l! j~ -I~ :J:
10.90 10.50 11.00 11 .50
Page: 4 Report Date: 8/17/2010 Page 64 of70
Quantitation Report
Data Path
Data File
Acq On
Operator
Sample
Mise
ALS Vial
C:\msdchem\1\DATA\AuglO-C\05AUGlO\
Y31LMBLK.D
5 Aug 2010 7:53 pm
MB VOC 0805l0B
MBLK 5.0ML
5 Sample Multiplier: 1
Quant Time: Aug 06 16:02:06 2010
Quant Method C:\MSDCHEM\1\METHODS\AFULLW_17.M
Quant Title VOA Calibration
QLast Update Sat Jul 24 12:31:54 2010
Response via Initial Calibration
'p.bundance
200000O
1800000
1600000
1400000
1200000
1000000
800000
600000
400000
200000
" inme-> 2.00 2.50 3.00 3.50 4.00
AFULLW_17.M Fri Aug 06 16:06:21 2010
(/) "l.
t !!
1\1 .l!! ii ~ E R ! ~ ~ "I.
~ t: " (/)
!i (/)
4.50 5.00
(QT Reviewed)
TIC: Y31 LMBLK.O'odaIa.ms I
'ii " Ii ~ " 'I. ~ ~ at "i' ~ 0 J ~
;
'" t R
J '" " .sl I 0 ~-
!i ~ u: !i ; l e '" !i (/)
5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00 11.50
Page: 4 Report Date: 8/17/2010 Page6Sof70
Quantitation Report
Data Path
Data File
Acq On
Operator
Sample
Mise
ALS Vial
C:\msdehem\1\DATA\Aug10-C\09AUG10\
Y86LMBLK.D
9 Aug 2010 1:32 pm
MB VOC 080910A
MBLK 5.0ML
5 Sample Multiplier: 1
Quant Time: Aug 10 12:20:08 2010
Quant Method C:\MSDCHEM\1\METHODS\AFULLW_17.M
Quant Title VOA Calibration
QLast Update Sat Jul 24 12:31:54 2010
Response via Initial Calibration
I!.hllrv/"nt'O
Il:IVUUUU
1800000
1700000
1600000
1500000
1400000
1300000
1200000
1100000
1000000
900000
800000
700000
600000
500000
400000
300000
200000
100000
Inme->
0
2.00 2.50 3.00 3.50 4.00
AFULLW~17.M Tue Aug 10 12:23:06 2010
"I. <k
Co I i D ~ ~ ~ 9 c 'i ~ i i c
~
4.50 5.00
(QT Reviewed)
nc; Y86LMBLK.D\data.m:;
~ ~ i ~ 2 ~ I ~ ~ 0
Q ;
<k ~ !! 0 e !! ! i !!! .. I i e '" 0 ~ ~
5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00 11.50
Pa·ge: 4 Report Date; 811712010 Page 66 0(70
Data Path
Data File
Aeq On
Operator
Sample
Mise
ALS Vial
Quantitation Report
C:\msdehem\1\DATA\Aug10-C\05AUG10\
Y34S1012.D
5 Aug 2010 8:50 pm
1008101-002AMS
MS 5.0ML/50ML 10F3
8 Sample Multiplier: 10
Quant Time: Aug 05 21:02:42 2010
Quant Method C:\MSDCHEM\1\METHODS\AFULLW_17.M
Quant Title VOA Calibration
QLast Update Sat Jul 24 12:31:54 2010
Response via Initial Calibration
lTlmg->
i
J
AFULLW_17.M Fri Aug 06 16:06:54 2010
1 i ~ LL ~
(Not Reviewed)
TIC: Y34S1012.0\data.ms
i ! ~ 1= ~
E
I
i I!! :: !!C ~j ~ i~ t£ ::t x _
Page: 4 R.eportDate: 8117/2010 Page 67 of 70
Quantitation Report
Data Path
Data File
Aeq On
Operator
Sample
Mise
ALS Vial
C:\msdchem\1\DATA\Aug10-C\09AUG10\
Y90S0712.D
9 Aug 2010 2:48 pm
1008071-002AMS
MS 5ML/50ML 20F3
9 Sample Multiplier: 10
Quant Time: Aug 09 15:00:15 2010
Quant Method C:\MSDCHEM\1\METHODS\AFULLW_17.M
Quant Title VOA Calibration
QLast Update Sat Jul 24 12:31:54 2010
Response via Initial Calibration
\t\bUixiance
300000O
2200000
200000O
1800000
1600000
1400000
1200000
[!mk>
! E
.II!! j ,: ~
U:§ .Iii .. o
! is . ~ .: j ~
AFULLW_17.M Tue Aug 10 12:24:35 2010
I!! "" ~ I!! .!I ~
j
Ii: ;
(Not Reviewed)
fiC:-ysOS0712:0'data.ms
<4-1 ~ ~ ~ 1~1f
~ I
$I ~ II! I ~ -
2
1. ~ 11 1 y c ~ ~ iii -
!! I!!
tIl
:I: -
Page: I)
..
Report Dale: 8/17120 \0 Page 611 of70
Data Path
Data File
Acq On
Operator
Sample
Mise
ALS Vial
Quantitation Report
C:\msdchem\1\DATA\AuglO-C\OSAUG10\
Y35D1012.D
5 Aug 2010 9:09 pm
100B101-002AMSD
MS 5.0ML/SOML 10F3
9 Sample Multiplier: 10
Quant Time: Aug 05 21:21:54 2010
Quant Method C:\MSDCHEM\1\METHODS\AFULLW_17.M
Quant Title VOA Calibration
QLast Update Sat Jul 24 12:31:54 2010
Response via Initial Calibration
--------
2800000
1
J ;
(Not Reviewed)
TiC: Y35[jf012:O\daia~ms
I
..
E
I i :c .5.! c * ~
~ !
I III I m,1 1i Z i j tl ' ~ ~ ~n~ HI ~ . EJ J 11 .. ~i _ ~ <i J ~'j ..,. .... ~ ~,; I ~ G Do t .-
j hi HI! H' <~. I I ~ J~ ~ l il~J !
m j
AFULLW_17.M Fri Aug 06 16:07:27 2010 Page: 4
10.50 11.00 11.50
Report Date: 8/17/2010 Page 69 of70
Quantitation Report
Data Path
Data File
Aeq On
Operator
Sample
Mise
ALS Vial
C:\msdehem\l\DATA\AuglO-C\09AUG10\
Y91D0712.D
9 Aug 2010 3:07 pm
1008071-002AMSD
MSD 5ML/50ML 20F3
10 Sample Multiplier: 10
Quant Time: Aug 09 15:19:25 2010
Quant Method C:\MSDCHEM\I\METHODS\AFULLW_17.M
Quant Title VOA Calibration
QLast Update Sat Jul 24 12:31:54 2010
Response via Initial Calibration
~.-.:-:..~--------
.!Jl~~_
AFULLW_17.M Tue Aug 10 12:24:54 2010
~ -.. !! ! ~ I
~ ~
(Not Reviewed)
TiC: Y9100712.OI.datli:ms
i ~ S til Iii I~ -
~ B .;,.
~ ~
I !I ... ~ "'-/! ~ i~ _ "t
X -
Page: 4
11.50
Report Date: 8/17/2010 Page 70 0(70
'41
American West Analytical Laboratories
WORK ORDER Summary 06-Aug-1O
Work Order: 1008101
ClientID: DENIOO Contact: 10 Aml Tischler WOType: Project
ProjectID: DENIOO-Annua] Tailings PM: COMMENTS:
Project: Annual Tailings QCLevel: LEVELm ~o Hard Copies (UL). QC 3 & Summary. EDD-CSV.
CltkList Completed On: Completed By !Report THF to 1 p.g/L_ Library search required for 4-
CbkList Reviewed 0.: Reviewed By: chlorophenol. Use Siunple #2 for MSIMSD. Analysis for
rrrip Blank added per Jo Ann Tischler 8-6-10.;
WO Reviewed 011: &1512010 Reviewed By: 9
SampJem Oint Simple II) Date CoUected Date Received Date Due Matrix: Test Code HId MS SEL Sub Storage
]OO8]0]~IA een I B!312010 9:0S:OO AM 8/51201010:00:00 AM 811912010 Aqueous B260-W 0 0 ~ o VOCFridge
]008101~18 1111912010 3S10-SVOA-PR 0 0 0 o WalJcln-Semi
8/1912010 8270-W 0 0 ~ 0 Wilkin-Semi
10081 0 1-OO2A Cell 2 Slimes 8!.i120 I 0 10:50:00 AM 811912010 8260-W · 0 0 ~ o VOCFridge
1008101-0028 11119120rO 3S10-SVOA-PR 0 0 0 o Wllkin-Semi
811912010 827Q.W 0 0 ~ o WaJkin.semi
l00810]"()()3A Ce.lllLDS 11312010 ]2:50:00 PM 8/1912010 8260-W 0 0 ~ o VOCFridge
]001101~3B 8/1912010 3S10.sVOA-PR 0 0 o . 0 Walkin-Semi
811912010 827Q.W 0 0 ~ o Walkin-Seml
lOO1101-004A Cell 3 113120102:50:00 PM 811912010 8260-W 0 0 ~ o VOCFridge
100110]-0048 811912010 3510.svOA-PR 0 0 0 o Walkin-Semi
811912010 8270-W 0 0 ~ o Walkin.scmi
loo810)"()()SA Ccll4A 113120)01:50:00 PM 811912010 8260-W 0 0 ~ o VOCFridge
l008101~OSB 8i1912010 3S10-SVOA-PR 0 0 0 o Walkin-Seml
811912010 . 8270-W 0 0 ~ o Walkin.semi
1008101-OO6A CelI4AlDS 813120101:40:00 PM 811912010 826O-W 0 0 ~ o VOCFridgc
lOO8101.oo6B 811912010 3S1o.sVOA-PR 0 0 0 o Walkin-Semi
811912010 8270-W 0 0 ~ o Walkin-Semi
l008101-007A Slimes 65 81312010 10:50:00 AM 81]9120]0 ·826Q.W 0 0 ~ o VOCFridgc
l008101-OO7B 811912010 3S10.svOA-PR 0 0 0 o Walkin-Semi
811912010 8270-W 0 0 ~ o Wllkin-Scmi
WORK ORDER Summary 06-Aug-IO
Work Order: 1008101
Client ID: DENIOO COlltact: Jo Ann Tischler
ProjectID: DENIOO-Anoual Tailings PM: COMMENTS: I
'Project: ArulUal Tailings QCLevel: LEVEL ill No Hard Copies (UL). QC 3 & Sununary. EDD-CSV.
CllkList Completed 0.: Completed By Report THF to 1 Jig/L. Library search required for 4-
CllkList Reviewed On: . Reviewed By: chlorophenol. Use Sample #2 for MSIMSD. Analysis for
Trip Blank added per Jo Ann Tischler 8-6-10.;
WO Reviewed OD: 815/2010 Reviewed By: 9
SaRipiem C1ieat Salilple m Date C.1lected Date Received Date Due Matrix Test Code HId MS SEL Sub Ston&e
l00110l-00SA Trip Blank 81312010 8/5flOl0 10:00:00 AM 8I19flOl0 Aqueous B260-W o 0 ~ 0 VOCFridge
loo~IO \
"ENISOJ)~~I She.t1 m1
MINES
CHAIN OF CUSTODY
Samples Shipped to: American West Analytical Lab
463 West 3600 South
Contact: Ryan Palmer or David Turk
Ph: 435 678 2221
I
Salt Lake City, Ut 84115 [e-mail]
[e-mail]
Chain of Custody/Sampling Analysis Request
Pro ect Sam lers Name
Annual Tailin s Garrin Palmer Tanner Hollida
Date Time
Sample 10 Collected Collected Laborato_ry Analysis ReQuested
Cell 1 8/312010 905 THF. 4-chlorophenal by Library
Cell 2 Slimes 8/3/2010 1050 THF. 4-chlorophenal by Library
Cell 2 LOS 8/312010 1250 THF. 4-chlorophenal by Library
Cell 3 8/3/2010 1450 THF, 4-chlorophenal by Library
CeU4A 8/312010 1350 THF, 4-chlorophenal byLibrary
Cell4ALDS 8/312010 1340 THF 4-chlorophenal by Library
Slimes 65 8/312010 1050 THF 4-chlorophenal by Library
-"'f r\ t"\ 'P>~ If: ~/~'lo T"'~ , ,
Please notify Ryan Palmer of Reclept tempBture on these samples Immedlately\ Thank you.
'"\~~
~~
DateITlme Received By: Signature)
8/412010
DateITlme
1400
Date/Tlme Re
------------------------------------~I--------------------------
Denison Mines
Annual Tailings -8270 Analyte List
81Sfl010
Rebekah Winkler
From:
Sent:
To:
Cc:
Subject:
Rebekah,
Kathy Weinel [[e-mail]]
Thursday, August 05,201004:31 PM
Rebekah Winkler
Jo Ann Tischler
RE: Chain of Custody Questions for Annual Tailings
Sorry about the miscommunications on the coes
• Yes, the trip blank needs to be analyzed for THF same as all the other voe samples.
• Please run the svoe list and a library scan for 4-chlorophenol. Specifically, the SVOC list which was attached to
your e-mail-I checked it and It is correct. .
• Same data package as normal-one request -please make the PDF files non-secured -in other words do not
lock the files -we use them to produce deliverables and in doing so rearrange the pages in a document.
Thanks
Do not hesitate to call me with further issues or questions
KAW
Kathy Weinel
Quality Assurance Manager
t: [phone] I t [phone] DENISON MINES (USA) CORP
1050 17th street, Suite 950, Denver, CO 80265 WWW.denjsonmlnes.CQm
This e-malll.lnlendedlortheexclusllleuNoftheperson(a)menUonedlithelNplenl(a).ThIs mesaage and any attached Illes with II are confldenUal and may contain
privileged or propnelaly InlonnaUon. II you are not the Intended racfplent{.) pIeaM delete thll meRaga and noUfy the lender. You may no! use, distribute print or copy this
inesaage Ir you 8(8 not II\e In'ended ntdplent(s).
From: Rebekah Winkler [mailto:[e-mail]]
Sent: Thursday, August OS, 2010 2:27 PM
To: Kathy Weinel; Jo Ann Tischler
Subject: Chain of Custody Questions for Annual Tailings
Kathy/Jo Ann,
Attached is the chain of custody for your Annual Tailings samples received today 8/5.
There were a couple of issues that need clarification:
• A Trip Blank was received, but not written on the chain of custody. Old you need this run forTHF as well?
• The full Semlvolatile analyte list was not requested. The chain of custody said only to run 4-chlorophenol by
library search. On future chains, please Indicate "8270 includlng4-chlorophenol by library search."
• I created the 8270 analyte list (page 2 of the attachment) based on an email that Kathy had sent at the end of
July. ThIs is what the samples have been received for, let me know if any anatytes are missed or need special
detection limits.
• I'm also assuming that this project requires a QC 3 data package as well as an EDD in a CSoJ fonnat. Let me know
If that is incorrect.
1
Thank you;
-Rebekah Winkler
Reportln! Co«dInator
Amertcan WISt Analytltal uboratorllS
463 W. 3600 S.
Salt lIki City, UT 84115
wwwlWlHaba,COID
Tel: (801) 263·8686
FIX: (BOl) 263-8687
emali: rebpkab@awpl-Iabs cpm
Notice of confldentlantv. This transmission Is attorney. client privileged and Intended exclusively for the stated addressee. If received accidentally, please nDtlfy the
sender Immediately. Reproduction, distribution, and dissemination of this InformatlDn 'ire strictly prohibited by anyone other than thalntended.
This e-malllslntandedforexclul!~ausethepel1lon(s)menlionedastheraclplent(s).Thls message and any attached l1!es with It IIRI conndentlal and may contain PflVlleged
or proprietalY InformaUon. If you Ire not the Intended ntCIpllnt(l) pl_ delete this meMllge and notify the eender. You may not usa, dlstttbute print or copy this message If
you ara not the Intended rec:lplent(8).
2
TabD
Chemical and Radiological Summary Tables
Cell!
Chemical and Radiological Characteristics
Constituent 1987 2003 2007 2008 2009 2010 (Avg) (Avg)
Major Ions (mg/l)
Carbonate <5 <I ND ND <1 <I
Bicarbonate <5 NA ND ND <1 <I
Calcium 630 307 483 .8 604 635 711
Chloride 8000 6728 37340 9830 20700 7440
Fluoride <100 3005 31.72 0.3 0.4 28.4
Magnesium 7900 5988 21220 6550 16200 5410
Nitrogen-Ammonia 7800 3353 10628 5250 15200 8120
Nitrogen-Nitrate <100 41.8 269.4 64.9 142 58
Potassium NA 647 5698 1880 4140 1840
Sodium 10000 8638 62600 13200 39000 16700
Sulfate 190000 63667 287600 118000 232000 107000
pH (s.u.) 0.70 1.88 0.80 1.53 1.15 2.73
TDS 120000 94700 357400 131000 140000 130000
Conductivity (umhos/cm) NA NA NA NA 365000 110000
Metals (ug/I)
Arsenic 440000 121267 849000 271000 436000 74400
Beryllium 780 475 2262 500 410 338
Cadmium 6600 3990 29320 8790 9120 2940
Chromium 13000 6365 29940 6760 18700 5620
Cobalt 120000 NA 88240 23500 97500 16200
Copper 740000 196667 881000 360000 168000 125000
Iron 3400000 2820000 13480000 3280000 2390000 3400000
Lead <20000 3393 27420 11200 10600 9240
Manganese 140000 162500 990200 206000 723000 173000
Mercury NA NA ND ND 7.61 7.2
Molybdenum 240000 50550 415600 106000 142000 35300
Nickel 370000 36950 40860 32000 156000 27500
Selenium <20000 1862 15420 13000 14800 5220
Silver <5000 NA 1559.2 449 558 155
Thallium 45000 NA 407.8 165 387 193
Tin <5000 NA 6512 1240 2290 263
Uranium 105000 134517 788600 416000 578000 159000
Vanadium 280000 348000 2208200 1200000 773000 752000
Zinc 1300000 NA 642940 476000 229000 171000
Radiologies (pCi/I)
Gross Alpha NA 169333 29380 21900 16500 11300
VOCS (ug/L)
Acetone 35 NA 66.5 110 710 260
Benzene <5 NA ND ND <I <1
Carbon tetrachloride <5 NA ND ND <1 <1
Chloroform 8 NA 6.7 6.6 16 4.9
Chloromethane NA NA ND 9.4 11 4.4
MEK NA NA ND ND 120 65
Methylene Chloride 11 NA ND ND 2.0 <I
Naphthalene <10000 NA <10 ND 1.1 5.4
Tetrahydrofuran NA NA 150 <20 <100 <10
Toluene <5 NA ND ND <1 <1
Xylenes <5 NA ND ND <1 <1
SVOCS (ug/L)
1,2,4-Trichlorobenzene NA NA NA NA <50 <10
1,2-Dichlorobenzene NA NA NA NA <50 <10
1,3-Dichlorobenzene NA NA NA NA <50 <10
1,4-Dichlorobenzene NA NA NA NA <50 <10
I-Methylnaphthalene NA NA NA NA <50 <10
2,4,5-Trichlorophenol NA NA NA NA <50 <10
2,4,6-Trichlorophenol NA NA NA NA <50 <10
2,4-Dichlorophenol NA NA NA NA <50 <10
2,4-Dimethylphenol NA NA NA NA <50 <10
2,4-Dinitrophenol NA NA NA NA <250 <20
2,4-Dinitrotoluene NA NA NA NA <50 <10
CellI
Chemical and Radiological Characteristics
Constituent 1987 2003 2007 2008 2009 2010 (Avg) (Avg)
Major Ions (mg/l)
2,6-Dinitrotoluene NA NA NA NA <50 <10
2-Chloronaphthalene NA NA NA NA <50 <10
2-Chlorophenol NA NA NA NA <50 <10
2-Methvlnaphthalene NA NA NA NA <50 <10
2-Methylphenol NA NA NA NA <50 <10
2-Nitrophenol NA NA NA NA <50 <10
3&4-Methylphenol NA NA NA NA <22 <10
3,3' -Dichlorobenzidine NA NA NA NA <100 <10
4,6-Dinitro-2-methylphenol NA NA NA NA <250 <10
4-Bromophenyl phenyl ether NA NA NA NA <50 <10
4-Chloro-3-melhylphenol NA NA NA NA <50 <10
4-Chlorophenyl phenyl ether NA NA NA NA <50 <10
4-Nitrophenol NA NA NA NA <250 <10
Acenaphthene NA NA NA NA <50 <10
Acenaphthylene NA NA NA NA <50 <10
Anthracene NA NA NA NA <50 <10
Azobenzene NA NA NA NA <50 <10
Benz(a)anthracene NA NA NA NA <50 <10
Benzidine NA NA NA NA <100 <10
Benzo(a)pyrene NA NA NA NA <50 <10
Benzo(b)fl uoranthene NA NA NA NA <50 <10
Benzo(g,h,i)perylene NA NA NA NA <50 <10
Benzo(k)fluoranthene NA NA NA NA <50 <10
Bis(2-chloroethoxv)methane NA NA NA NA <50 <10
Bis(2-chloroethyi) ether NA NA NA NA <50 <10
Bis(2-chloroisopropyl) ether NA NA NA NA <50 <10
B is(2-elhylhexyl) phthalate NA NA NA NA <50 27
Butyl benzyl phthalate NA NA NA NA <50 <10
Chrysene NA NA NA NA <50 <10
Dibenz(a,h)anthracene NA NA NA NA <50 <10
Diethyl phthalate NA NA NA NA 170 <10
Dimethyl phthalate NA NA NA NA <50 <10
Di-n-butyl phthalate NA NA NA NA <50 <10
Di-n-octyl phthalate NA NA NA NA <50 <10
Fluoranthene NA NA NA NA <50 <10
Fluorene NA NA NA NA <50 <10
Hexachlorobenzene NA NA NA NA <50 <10
Hexachlorobutadiene NA NA NA NA <50 <10
Hexachlorocyclopentadiene NA NA NA NA <50 <10
Hexachloroethane NA NA NA NA <50 <10
Indeno( 1 ,2,3-cd)pyrene NA NA NA NA <50 <10
Isophoronc NA NA NA NA <50 <10
Naphthalene NA NA NA NA <50 <10
Nitrobenzene NA NA NA NA <50 <10
N -N itrosodimethylamine NA NA NA NA <50 <10
N-Nitrosodi-n-propylamine NA NA NA NA <50 <10
N-Nitrosodiphenylamine NA NA NA NA <50 <10
Pentachlorophenol NA NA NA NA <250 <10
Phenanthrene NA NA NA NA <50 <10
Phenol NA NA NA NA <50 <10
Pyrene NA NA NA NA <50 <10
Pyridine NA NA NA NA <50 <10
Historic values reported for Gross Alpha from 1987 and 2003 are total gross alpha reported in pCi/L. All
other gross alpha data are reported as Gross Alpha minus Rn & U.
1-1 ighlighted text -indicates corrections to the historic values. Historic values for 1987 and 2003 were
checked against and recalculated using the data presented in the Tables in Attachment 6 of the Groundwater
Discharge Permit UGW370004 Statement of Basis for a Uranium Mining Facility South of Blanding Utah,
dated September 2009.
Cell 3
Ch emlca an a loog lca I d R d' I I Ch t 'f arac erlS lCS
Constituent 1987 2003 2007 2008 2009 2010 (Avg) (Avg)
Major Ions (mw!)
Carbonate NA <I ND ND <1 <I
Bicarbonate <5 NA ND ND <1 <I
Calcium 300 418 887 478 628 560
Chloride NA 2460 15965 15400 17200 3470
Fluoride <100 667 42.8 1.4 0.6 54.8
Magnesium 5400 3386 15767 13100 17100 2500
Nitrogen-Ammonia 13900 1302 13867 9010 21600 2650
Nitrogen-Nitrate <100 20 102 44 142 26
Potassium NA 254 6657 4760 3820 782
Sodium 5900 3198 25583 22900 28600 5620
Sulfate 180000 33400 173667 167000 214000 40400
pH (s.u.) 0.82 2.28 1.60 1.79 1.4 2.18
TDS 189000 51633 228500 193000 243000 56200
Conductivity (umhos/cm) NA NA NA NA 304000 59800
Metals (U2/1)
Arsenic 163000 32867 256500 489000 ND 52900
Beryllium 540 430 913 840 905 206
Cadmium 2600 1958 9260 15400 ND 1960
Chromium 12000 3742 14883 12800 ND 3360
Cobalt 48000 NA 82783 57000 ND 13000
Copper 360000 87333 505000 345000 ND 89000
Iron 2100000 1278333 4874500 4400000 5970000 1460000
Lead <20000 2507 9647 16900 ND 17200
Manganese 82000 144000 496833 313000 ND 101000
Mercury ND NA ND 16 ND <4
Molvbdenum 52000 12250 122167 209000 14 21300
Nickel 170000 20917 131833 241000 ND 23800
Selenium <2000 910 5856 10200 ND 3080
Silver <2500 NA 305 1010 ND 101
Thallium 4700 NA 446 1200 ND 190
Tin NA NA 1090 1070 ND 155
Uranium 118000 67833 332333 636000 3690 180000
Vanadium 210000 158333 935000 1130000 ND 692000
Zinc 590000 NA 748833 515000 ND 134000
Radiologies (pC ill)
Gross Alpha NA 101583 16533 21700 17000 4030
VOCS (uwL)
Acetone 28 NA 80 100 67 37
Benzene <5 NA ND ND <1 <I
Carbon tetrachloride <5 NA NO ND <1 <1
Chloroform 6 NA NO 11 4.2 2.6
Chloromethane NA NA ND ND 1.4 1.8
MEK NA NA ND ND <1 <1
Methylene Chloride 10 NA ND ND <1 <1
Naphthalene <10000 NA NO <10 <1 2.1
Tetrahydrofuran NA NA 150 <20 <100 <10
Toluene <5 NA ND ND <1 <1
Xylenes <5 NA ND ND <1 <1
SVOCS (ug/L)
1,2,4-Trichlorobenzene NA NA NA NA <11 <10
L,2-Dichlorobenzene NA NA NA NA <II <10
1,3-Dichlorobenzene NA NA NA NA <11 <10
1,4-Dichlorobenzene NA NA NA NA <II <10
I-Methylnaphthalene NA NA NA NA <11 <10
2,4,5-Trichlorophenol NA NA NA NA <11 <10
2,4,6-Trichlorophenol NA NA NA NA <11 <10
2,4-0ichlorophenol NA NA NA NA <11 <10
2,4-Dimethylphenol NA NA NA NA <11 <10
2,4-Dinitrophenol NA NA NA NA <53 <20
2,4-Dinitrotoluene NA NA NA NA <11 <10
2,6-Dinitrotoluene NA NA NA NA <11 <10
Cell 3
Ch emlca an a 10 o~ ca I d R d O I I Ch t ° f arac ens ICS
Constituent 1987 2003 2007 2008 2009 2010 (Avg) (Avg)
Major Ions (mwl)
2-Chloronaphthalene NA NA NA NA <II <10
2-Chloropheno I NA NA NA NA <11 <10
2-Methylnaphthalene NA NA NA NA <II <10
2-Methylphenol NA NA NA NA <11 <10
2-Nitrophenol NA NA NA NA <11 <10
3&4-Methylphenol NA NA NA NA <11 <10
3,3' -Dichlorobenzidine NA NA NA NA <21 <10
4,6-Dinitro-2-methvlphenol NA NA NA NA <53 <10
4-Bromophenyl phenyl ether NA NA NA NA <11 <10
4-Chloro-3-methylphenol NA NA NA NA <11 <10
4-Chlorophenyl phenvl ether NA NA NA NA <11 <10
4-Nitrophenol NA NA NA NA <53 <10
Acenaphthene NA NA NA NA <11 <10
Acenaphthvlene NA NA NA NA <II <10
Anthracene NA NA NA NA <11 <10
Azobenzene NA NA NA NA <11 <10
Benz(a)anthracene NA NA NA NA <11 <10
Benzidine NA NA NA NA <21 <10
Benzo(a)pyrene NA NA NA NA <II <10
Benzo(b )fluoranthene NA NA NA NA <11 <10
Benzo(g,h,i)perylene NA NA NA NA <11 <10
Benzo(k)fluoranthene NA NA NA NA <11 <10
Bis(2-chloroethoxy)methane NA NA NA NA <II <10
Bis(2-chloroethyl) ether NA NA NA NA <11 <10
Bis(2-chloroisopropyl) ether NA NA NA NA <11 <10
Bis(2-ethylhexyl) phthalate NA NA NA NA <11 10.6
Butyl benzyl phthalate NA NA NA NA <11 <10
Chrysene NA NA NA NA <11 <10
Dibenz(a,h)anthracene NA NA NA NA <11 <10
Diethyl phthalate NA NA NA NA <11 <10
Dimethyl phthalate NA NA NA NA <11 <10
Di-n-butyl phthalate NA NA NA NA <11 <10
Di-n-octyl phthalate NA NA NA NA <11 <10
Fluoranthene NA NA NA NA <II <10
Fluorene NA NA NA NA <11 <10
Hexachlorobenzene NA NA NA NA <11 <10
Hexachlorobutadiene NA NA NA NA <11 <10
Hexachlorocyclopentadiene NA NA NA NA <11 <10
Hexachloroethane NA NA NA NA <II <10
Indeno(1.2.3-cd)pyrene NA NA NA NA <11 <10
Isophorone NA NA NA NA <II <10
Naphthalene NA NA NA NA <11 <10
Nitrobenzene NA NA NA NA <11 <10
N-Nitrosodimethylamine NA NA NA NA <11 <10
N-Nitrosodi-n-propylamine NA NA NA NA <11 <10
N-Nitrosodiphenylamine NA NA NA NA <11 <10
Pentachlorophenol NA NA NA NA <53 <10
Phenanthrene NA NA NA NA <11 <10
Phenol NA NA NA NA <11 <10
Pyrene NA NA NA NA <11 <10
Pyridine NA NA NA NA <11 <10
1 Historic values reported for Gross Alpha from 1987 and 2003 are total gross alpha reported in pCilL. All
other gross alpha data are reported as Gross Alpha minus Rn & U.
Highlighted text -indicates corrections to the historic values. Historic values for 1987 and 2003 were
checked against and recalculated using the data presented in the Tables in Attachment 6 of the Groundwater
Discharge Permit UGW370004 Statement of Basis for a Uranium Mining Facility South of Blanding Utah,
dated September 2009.
Ce1l4A
Ch emlca an a 10 ofl;lca I d R d" I I Ch t "f arac ens ICS
Constituent 2009 2010
Ma.ior Ions (me;ll)
Carbonate <1 <1
Bicarbonate <1 <1
Calcium 627 598
Chloride 4650 7350
Fluoride 0.3 21.6
Magnesium 3250 4940
Nitrogen-Ammonia 3140 5230
Nitrogen-Nitrate 28 52
Potassium 980 1440
Sodium 5980 11300
Sulfate 67600 87100
pH (s.u.) 1.40 1.99
TDS 81400 107000
Conductivity (umhos/cm) 131000 101000
Metals (uwl)
Arsenic 626000 109000
Beryllium 296 215
Cadmium 1920 3670
Chromium 3220 7500
Cobalt 9440 26500
Copper 99200 168000
Iron 2360000 2920000
Lead 5360 11800
Manganese 178000 209000
Mercury 1.19 <4
Molybdenum 24300 43800
Nickel 17100 40900
Selenium 4620 5810
Silver 78 193
Thallium 162 350
Tin 257 378
Uranium 118000 217000
Vanadium 918000 1090000
Zinc 142000 224000
Radiologies (pCi/l)
Gross Alpha 8910 3400
VOCS (ugIL)
Acetone 60 55
Benzene <1 <1
Carbon tetrachloride <1 <1
Chloroform 4.0 8.5
Chloromethane 3.4 5.5
MEK <I <1
Methylene Chloride <1 <1
Naphthalene 1.8 <1
Tetrahydrofuran <100 <10
Toluene <1 <I
Xylenes <I <I
SVOCS (ugIL)
1,2,4-Trichlorobenzene <11 <10
1,2-Dichlorobenzene <11 <10
1,3-Dichlorobenzene <11 <10
1,4-Dichlorobenzene <11 <10
1-Methylnaphthalene <11 <10
2,4,5-Trichlorophenol <11 <10
2,4,6-Trichlorophenol <II <10
2,4-Dichlorophenol <11 <10
2,4-Dimethylphenol <11 <10
Ce1l4A
Ch emlca an a o o21ca I d R di 1 I Ch t . f arac ens ICS
Constituent 2009 2010
~ajorlons(DI~)
2,4-Dinitrophenol <53 <20
2,4-Dinitrotoluene <1\ <10
2,6-Dinitrotoluene <11 <10
2-Chloronaphthalene <11 <10
2-Chlorophenol <11 <10
2-Meth)'lnaphthalene <11 <10
2-Methylphenol <11 <10
2-Nitrophenol <11 <10
3&4-Methylphenol <11 <10
3,3' -Dichlorobenzidine <21 <10
4,6-Dinitro-2-methylphenol <53 <10
4-Bromophenyl phenyl ether <11 <10
4-Chloro-3-methylphcnol <11 <10
4-Chlorophenyl phenyl ether <11 <10
4-Nitrophenol <53 <10
Acenaphthene <11 <10
Acenaphthylene <11 <10
Anthracene <11 <10
Azobenzene <11 <10
Benz( a) anthracene <11 <10
Benzidine <21 <10
Benzo( a)pyrene <11 <10
Benzo(b )fluoranthene <11 <10
Benzo( g,h, i)pery lene <11 <10
Benzo(k)fluoranthene <11 <10
Bis(2-chloroethoxy)methane <11 <10
Bis(2-chloroethyl) ether <11 <10
Bis(2-chloroisopropyl) ether <11 <10
Bis(2-ethylhexyl) phthalate <11 19.6
Butyl benzyl phthalate <11 <10
Chrysene <11 <10
Dibenz(a,h)anthracene <11 <10
Diethyl phthalate <11 <10
Dimethyl phthalate <11 <10
Di-n-butyl phthalate <11 <10
Di-n-octyl phthalate <11 <10
Fluoranthene <I} <to
Fluorene <11 <10
Hexachlorobenzene <11 <10
Hexachlorobutadiene <11 <10
HexachlorocYclopentadiene <I} <10
Hexachloroethane <11 <10
1 ndeno(l ,2,3-cd)pyrene <11 <10
Isophorone <11 <10
Naphthalene <11 <10
Nitrobenzene <II <10
N-Nitrosodimethylamine <11 <10
N-Nitrosodi-n-propylamine <11 <10
N-Nitrosodiphenylamine <11 <10
Pentachlorophenol <53 <10
Phenanthrene <11 <10
Phenol <11 <10
Pyrene <11 <10
Pyridine <11 <10
Cell 2 Slimes Drain
emlca and a io Of!ICa Ch I R d I I C haracteristIcs
Major Ions (m2/1) 2007 2008 2009 2010
Carbonate NO NO <1 <I
Bicarbonate NO NO <1 <1
Calcium 572 528 508 496
Chloride 3700 3860 2750 3510
Fluoride 3.3 NO <0.1 2.4
Magnesium 4100 4030 3750 3790
Nitrogen-Ammonia 4020 3620 3240 3820
Nitrogen-Nitrate 30.9 20.3 38 126
Potassium 636 560 689 620
Sodium 4050 4600 4410 4770
Sulfate 60600 74000 72200 63700
pH (s.u.) 3.18 3.24 3.11 3.39
TDS 84300 74600 84100 79900
Conductivity (umhos/cm) NA NA 88700 60200
Metals (ue/I)
Arsenic 26900 19300 14200 23500
Beryllium 298 245 271 267
Cadmium 5500 5840 5510 6370
Chromium 2750 2450 2230 2510
Cobalt 46500 43800 38700 48200
Copper 106000 154000 170000 148000
Iron 2770000 3310000 3230000 2720000
Lead 566 528 403 586
Manganese 117000 130000 160000 144000
Mercury NO NO <0.5 <4
Molybdenum 4080 3190 2240 4630
Nickel 123000 122000 108000 126000
Selenium 422 647 726 844
Silver NO NO <10 <10
Thallium 361 703 368 470
Tin NO NO <100 <100
Uranium 23000 29200 29900 30600
Vanadium 409000 463000 536000 469000
Zinc 767000 750000 582000 652000
Radiolo2ics (pCi/l)
Gross Alpha 1290 1570 1580 1000
VOCS (ue:IL)
Acetone 550 410 570 460
Benzene NO NO <1 <1
Carbon tetrachloride NO NO <1 <I
Chloroform 20 17 16 15
Chloromethane 1.8 NO 2.2 2.3
MEK 65 NO 100 83
Methylene Chloride NO NO <1 <1
Naphthalene 14 7.5 16 17
Tetrahvdrofuran 15 NA <100 <10
Toluene 1.7 NO 2.6 2.6
Xylenes 1.5 NO <1 2.2
SVOCS (uglL)
1,2,4-Trichlorobenzene NA NA <11 <10
I 2-Dichlorobenzene NA NA <11 <10
1,3-Dichlorobenzene NA NA <11 <10
1,4-Dichlorobenzene NA NA <11 <10
I-Methylnaphthalene NA NA <11 <10
2,4,5-Trichlorophenol NA NA <II <10
2,4.6-Trichlorophenol NA NA <11 <10
2,4-Dichlorophenol NA NA <11 <10
2,4-Dimethylphenol NA NA <51 <20
2A-Dinitrophenol NA NA <11 <10
2,4-Dinitrotoluene NA NA <11 <10
2,6-Dinitrotoluene NA NA <11 <10
Cell 2 Slimes Drain
Ch emlca I d R d' I I Ch an a 10 ogJca t 'f arac ens ICS
Major Ions (mg/l) 2007 2008 2009 2010
2-Chlorona-,,-hthalene NA NA <11 <10
2-Chlorophenol NA NA <11 <10
2-Methylnaphthalene NA NA <11 <10
2-Methylphenol NA NA <11 <10
2-Nitrophenol NA NA <11 <10
3&4-Methylphenol NA NA <21 <10
3,3' -Dichlorobenzidine NA NA <51 <10
4,6-Dinitro-2-methylphenol NA NA <11 <10
4-Bromophenyl phenyl ether NA NA <11 <10
4-Chloro-3-methylphenol NA NA <11 <10
4-Chlorophenyl phenyl ether NA NA <51 <10
4-Nitrophenol NA NA <11 <10
Acenaphthene NA NA <11 <10
Acenaphthylene NA NA <11 <10
Anthracene NA NA <11 <10
Azobenzene NA NA <11 <10
Benz( a )anthracene NA NA <21 <10
Benzidine NA NA <11 <10
Benzo(a)pyrene NA NA <ll <10
Benzo(b)f1uoranthene NA NA <11 <10
Benzo(g,h,i)perylene NA NA <11 <10
Benzo(k)f1uoranthene NA NA <11 <10
Bis(2-chloroethoxy)methane NA NA <ll <10
Bis(2-chloroethyl) ether NA NA <11 <10
Bis(2-chloroisopropyl) ether NA NA <11 <10
Bis(2-ethylhexyl) phthalate NA NA <II <10
Butyl benzyl phthalate NA NA <11 <10
Chrysene NA NA <11 <10
Dibenz(a,h)anthracene NA NA <11 <10
Diethyl phthalate NA NA <11 <10
Dimethyl phthalate NA NA <II <10
Di-n-butyl phthalate NA NA <11 <10
Di-n-octyi phthalate NA NA <11 <10
Fluoranthene NA NA <11 <10
Fluorene NA NA <11 <10
Hexachlorobenzene NA NA <11 <10
Hexachlorobutadiene NA NA <11 <10
Hexachlorocvclopentadiene NA NA <11 <10
Hexachloroethane NA NA <II <10
Indenof 1,2,3 -cd)JlYl"ene NA NA <11 <10
Isophorone NA NA <11 <10
Naphthalene NA NA <1 I <10
Nitrobenzene NA NA <11 <10
N -N itrosodimethylamine NA NA <11 <10
N-Nitrosodi-n-propylamine NA NA <11 <10
N -N itrosodiphenylamine NA NA <51 <10
Pcnla.ch lorophcnol NA NA <11 <10
Phenanthrene NA NA <11 <10
Phenol NA NA <11 10.7
Pyrene NA NA <11 <10
Pyridine NA NA <11 <10
Cell 2 LDS
Ch I d R d· I I Ch emica an a 10 OgIca t . f arac ens ICS
Constituent 2009 2010
Maior Ions (mg/I)
Carbonate <1 <1
Bicarbonate 168 324
Calcium 711 615
Chloride 1750 1360
Fluoride 0.4 0.4
Magnesium 596 454
Nitrogen-Ammonia 32.6 0.7
Nitrogen-Nitrate 2.8 2.2
Potassium 22 13.0
Sodium 412 318
Sulfate 2700 1780
pH (s.u.) 6.60 7.36
TDS 6750 5310
Conductivity (umhos/cm) 11000 6500
Metals (ug/l)
Arsenic <5 <5
Beryllium <0.50 <0.50
Cadmium 33.4 1.10
Chromium <25 <25
Cobalt 314 <10
Copper 59 12
Iron 208 37
Lead <1.0 <1.0
Manganese 1810 395
Mercury <0.50 0.52
Molybdenum 21 13
Nickel 948 <20
Selenium 7.9 9.4
Silver <10 <10
Thallium 0.92 <0.50
Tin <100 <100
Uranium 83.8 79.6
Vanadium 22 <15
Zinc 4220 78
Radiolol!icsJ~Ci/l)
Gross Alpba 13.5 7.3
VOCS (uI!/L)
Acetone <20 <20
Benzene <1 <1
Carbon tetrachloride <1 <I
Chloroform <1 <1
Chloromethane <1 <1
MEK <20 <20
Methylene Chloride <1 <I
Naphthalene <1 <I
Tetrahydrofuran <100 6.13
Toluene <1 <1
Xylenes <1 <I
SY~CS (ul!lL)
1,2,4-Trichlorobenzene NA <10
1,2-Dichlorobenzene NA <10
1,3-Dichlorobenzene NA <10
1,4-Dichlorobenzene NA <10
I-Methylnaphthalene NA <10
2,4,5-Trichlorophenol NA <10
2,4,6-Trichlorophenol NA <10
2,4-Dichlorophenol NA <10
2,4-Dimethylphenol NA <10
2,4-Dinitrophenol NA <20
Cell 2 LDS
emlca an a looglca Ch I d R d' I I Ch aractenstIcs
Constituent 2009 2010
Major Ions (mglI)
2,4-Dinitrotoluene NA <10
2,6-Dinitrotoluene NA <10
2-Chloronaphthalene NA <10
2-Chlorophenol NA <10
2-Methylnaphthalene NA <10
2-Methylphenol NA <10
2-Nitrophenol NA <10
3&4-Methylphenol NA <10
3,3' -Dichlorobenzidine NA <10
4.6-Dinitro-2-methylphenol NA <10
4-Bromophenyl phenyl ether NA <[0
4-Chloro-3-methylphenol NA <10
4-Chlorophenyl phenyl ether NA <10
4-Nitrophenol NA <10
Acenaphthene NA <10
Acenaphthy lene NA <10
Anthracene NA <10
Azobenzene NA <10
Benz(a)anthracene NA <10
Benzidine NA <10
Benzo(a)pyrene NA <10
Benzo(b)fl uoranthene NA <10
Benzo(g,h,i)perylene NA <10
Benzo(k)fluoranthene NA <10
Bis(2-chloroethoxy)methane NA <10
Bis(2-chloroethyl) ether NA <10
Bis(2-chloroisopropyl) ether NA <10
Bis(2-ethylhexyl) phthalate NA <10
Butyl benzyl phthalate NA <10
Chrysene NA <10
Dibenz(a,h )anthracene NA <10
Diethyl phthalate NA <10
Dimethvl phthalate NA <10
Di-n-butyl phthalate NA <10
Di-n-octyl phthalate NA <10
Fluoranthene NA <10
Fluorene NA <10
Hexachlorobenzene NA <10
Hexachlorobutadiene NA <10
Hexachlorocyclopentadiene NA <10
Hexachloroethane NA <10
Indeno( 1 ,2,3-cd)pyrene NA <10
Isophorone NA <10
Naphthalene NA <10
Nitrobenzene NA <10
N -N itrosodimethylamine NA <10
N-Nitrosodi-n-propylamine NA <10
N -N itrosodiphenylamine NA <10
Pentachlorophenol NA <10
Phenanthrene NA <10
Phenol NA <10
Pyrene NA <10
Pyridine NA <10
Ce1l4A LDS
Ch I d R dO I 1 Ch emlca an a 100gaca t ° f arac ens lCS
Constituent 2009 2010
Maior Ions (mg/I)
Carbonate <1 <1
Bicarbonate <1 <1
Calcium 558 474
Chloride 7570 4670
Fluoride 0.7 39.4
Magnesium 6390 3240
Nitrogen-Ammonia 4480 2290
Nitrogen-Nitrate 69 183
Potassium 1960 934
Sodium 12600 6700
Sulfate 92400 41700
pH (s.u.) 1.98 2.53
TDS 117000 56900
Conductivity (umhos/cm) 150000 49000
Metals (UlllI)
Arsenic 133000 54000
Beryllium 536 295
Cadmium 4010 2650
Chromium 9140 3890
Cobalt 37300 15200
Copper 222000 116000
Iron 3940000 1420000
Lead 5270 3400
Manganese 389000 157000
Mercury 2.66 6.2
Molybdenum 49200 23900
Nickel 43900 23900
Selenium 5250 2820
Silver 204 62
Thallium 252 194
Tin 504 180
Uranium 284000 145000
Vanadium 1150000 518000
Zinc 298000 152000
Radiologies (pCi/l)
Gross Alpha 7020 3230
VOCS (uJl/L)
Acetone 240 130
Benzene <1 <1
Carbon tetrachloride <1 <1
Chloroform 23 52
Chloromethane 7.9 13
MEK 78 50
Methylene Chloride <1 <1
Naphthalene <1 1.5
Tetrahydrofuran 140 158
Toluene <1 <1
Xylenes <1 <1
SVOCS (ug/L)
1,2,4-Trichlorobenzene <11 <10
1,2-Dichlorobenzene <11 <10
1,3-Dichlorobenzene <11 <10
1,4-Dichlorobenzene <II <10
I-Methvlnaphthalene <11 <10
2,4,5-Trichlorophenol <11 <10
2,4,6-Trichlorophenol <11 <10
2,4-Dichlorophenol <11 <10
Ce1l4A LDS
Ch emlca an a looglca I d R d' I I Ch t 'f arac erls ICS
Constituent 2009 2010
Major Ions (mwl)
2,4-Dimethylphenol <11 <10
2,4-Dinitrophenol <54 <20
2,4-Dinitrotoluene <11 <10
2,6-Dinitrotoluene <11 <10
2-Chloronaphthalene <11 <10
2-Chlorophenol <11 <10
2-Methylnaphthalene <11 <10
2-Methylphenol <11 <10
2-Nitro~henol <11 <10
3&4-Methylphenol <11 <10
3,3' -Dichlorobenzidine <22 <10
4,6-Dinitro-2-methylphenol <54 <10
4-Bromophenyl phenyl ether <11 <10
4-Chloro-3-methylphenol <11 <10
4-Chlorophenyl phenyl ether <11 <10
4-Nitrophenol <54 <10
Acenaphthene <11 <10
Acenaphthylene <11 <10
Anthracene <11 <10
Azobenzene <11 <10
Benz(a)anthracene <11 <10
Benzidine <22 <\0
Benzo(a)pyrene <11 <10
Benzo(b )fluoranthene <11 <10
Benzo(g,h,i)perylene <11 <10
Benzo(k)fluoranthene <11 <10
Bis(2-chloroethoxy)methane <11 <\0
Bis(2-chloroethvl) ether <11 <10
Bis(2-chloroisopropyl) ether <11 <10
Bis(2-ethylhexyl) phthalate <11 54.9
Butvl benzyl phthalate <11 <10
Chrysene <11 <10
Dibenz(a,h)anthracene <11 <10
Diethvl phthalate <II <10
Dimethyl phthalate <11 <10
Di-n-butyl phthalate <11 <10
Di-n-octvl phthalate <11 <10
Fluoranthene <11 <10
Fluorene <11 <10
Hexachlorobenzene <11 <10
Hexachlorobutadiene <11 <10
Hexachlorocyclopentadiene <II <10
Hexachloroethane <11 <10
Indeno( I ,2,3 -cd)pyrene <II <10
Isophorone <II <\0
Naphthalene <11 <\0
Nitrobenzene <11 <10
N-Nitrosodimethylamine <11 <\0
N-Nitrosodi-n-propylamine <11 <10
N-Nitrosodiphenylamine <11 <10
Pentachlorophenol <54 <10
Phenanthrene <11 <10
Phenol 33 23.5
Pyrene <11 <10
Pyridine <11 <\0
1980 2003 IUCINRC T T -at angs Wt t S as ewa er amples
Constituent Minimum Maximum
pH (Std units) 0.7 2.33
Nutrients (mgIL)
Ammonia(N) 3.0 13900
Nitrite (N) <100 <100
Nitrate (N) 24 24
Nitrate+Nitrite (N) 17.0 49.2
Phosphorus -total 88.1 620
TKN (N) 4900 5300
Inore:anies (ml!lL)
Bicarbonate (HC03) <5 <5
Bromide <500 <500
Carbonate (C03) <1 <5
Chloride 2110 8000
Cyanide -total 0.022 0.022
Fluoride 0.02 4400
Phosphate <500 <500
Silica 110 400
Sulfate 29800 190000
Sulfide <5 <5
TDS 43100 189000
TOC 76.0 81
TSS 31.0 115
Metals (m!!!I)
Aluminum 330 2530
Antimony <20 <20
Arsenic 0.3 440
Barium 1.021 0.1
Beryllium 0.347 0.78
Boron 3.5 11.3
Cadmium 1.64 6.6
Calcium 90.0 630
Chromium 1.0 13
Cobalt 14.0 120
Copper 72.2 740
Iron 1080 3400
Gallium <30 <30
Lead 0.21 6.0
Lithium <10 <20
Magnesium 1800 7900
Manganese 74.0 222
Mercury 0.0008 17.6
Molybdenum 0.44 240
Nickel 7.2 370
Potassium 219.0 828
Selenium 0.18 2.4
SilYer 0.005 0.14
Sodium 1400 10000
Strontium 3.6 14
Thallium 0.7 45
Tin <5 <5
Titanium 6.5 33.3
Uranium 5.0 154
Vanadium 136 510
Zinc 50 1300
Zirconium 2.3 38.5
Radiologies (pCi/L)
Gross Alpha 14000 189000
Gross Beta 74 116000
Lead-210 680 20700
Thorium-230 3650 76640
Thorium-232 49 121
Polonium-210 1410 1410
Radium-226 40 1690
Radium-228 1.9 1.9
1980 2003 IUCINRC T T -al lOgs Wt t s as ewa er amples
Constituent Minimum Maximum
Total Radium 42 1700
Selected VOCs (u~/L)
Acetone 28 514
Benzene <5 <5
2-butanone (MEK) 11 15.13
Carbon Disulfide 16 16
Carbon Tetrachloride <5 <5
Chloroform 6 16.84
1,1-Dichloroethane <5 <5
1,2-Dichloroethane <5 <5
Dichloromethane 10 II
Tetrahydofuran N/A N/A
Toluene <5 6.25
Vinyl Chloride <10 <10
Xylene (total) <5 <5
Selected Semivolatiles (uwL)
Benzo(a)p)'I'ene <10 <10
Bis(2-ethylhexyl)phthalate 1 1
Chrysene <10 <10
Diethyl phthalate <10 18.1
Dimethylphthalate 2.7 2.7
Di-n-butylphthalate 1.08 1.08
Fluoranthene <10 <10
2-Methylnaphthalene <10 <10
Naphthalene 2.44 2.44
Phenol <10 38.4 ... *Reproduced from the Utah DIvIsion of RadiatIOn Control Groundwater Quahty Discharge Penmt, Statement of BasIs for a
Uranium Mining Facility at White Mesa, South of Blanding, Utah, dated December I, 2004.
IThe data in the Utah Division of Radiation Control Groundwater Quality Discharge Permit, Statement of Basis are based on historical
data collected from Celli, Cell 2, and Cell 3. The date of collection reflects which cells were operational at the time of sampling.
The location of the samples and date of collection is referenced in the Statement of Basis.
A
Steve Landau
Denison Mines
AMERICAN 1050 17th Street, # 950
WEST Denver, CO 80265-
ANALYTICAL TEL: [phone]
LABORATORIES FAX: [phone]
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
RE: Annual Tailings Sample
Lab Set ID: 0908094 Dear Steve Landau:
American West Analytical Laboratories received 7 sample(s) on 8/6/2009 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 the following states: Utah, Colorado, Idaho, and Texas. Certification document
is available upon request. If you have any questions or concerns regarding this report
please feel free to call.
The abbreviation "Surr" 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.
Thank You,
Approved by:
F . Digitally signed by Kyle F. Gross
DN: cn=Kyle F. Gross, o=AWAL,
ou=AWAL, email=kyre@awal-Iabs
com, c=US
Kyle
Gross Dale: 2009.08.13 1 5:23:41 ~·OO·
Laboratory Director or designee
Report Date: 8/13/2009 Page I of8
All analyses applicable to the CW A, SDWA, and ReRA are performed in accordance to NELAC protocols. Pertinent sampling information is located on the attached CDC. This report is provided for the exclusive use of the
addressee. Privileges ofsubsequenL use 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 other than for the addressee will be granted only on contact. This company accepts no responsibility except for the due perfonnance of inspection andlor analysis in good faith
and according to the rules of the trade and of science.
A
AMERICAN
WEST
ANALYTICAL
LABORATORIES
463 West 3600 South
Salt Lake City, UT
84115
(80]) 263-8686
Toll Free [phone]
Fax [phone]
email: [e-mail]
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
ORGANIC ANALYTICAL REPORT
Client:
Project ID:
Lab Sample ID:
Denison Mines
Annual Tailings Sample
0908094-003
Client Sample ID: Cell 1
Collection Date: 8/4/2009 9:45:00 AM
Received Date: 8/6/2009
Method Used: SW8260C
Contact: Steve Landau
Analyzed: 8/10/20096:46:00 PM
Analytical Results VOAs by GCIMS Method 8260CI5030C
Units: IlgiL
Dilution Factor: 50 CAS Reporting Analytical
Compound Number Limit Result Qual
Tetrahydrofuran 109-99-9 100 < 100
Surr: 1,2-Dichloroethane-d4 17060-07-0 77-144 93.4
Surr: 4-Brornofluorobenzene 460-00-4 80-123 107
Surr: Dibrornofluorornethane 1868-53-7 80-124 97.1
Surr: Toluene-d8 2037-26-5 80-125 105
The reporting limits were raised due to sample matrix interferences.
Report Date: 8/13/2009 Page 4 of 8
All analyses applicable to the CWA, SDWA, and RCRA are perfonned 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 oftbis report in connection with the advertisement, promotion or sale of any product or process, or in connection
with the re-publication of Ihis 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 1U181ysis in good faith
and according to the rules of the lrade and of science.
A Client:
Project ID:
Lab Sample ID:
ORGANIC ANALYTICAL REPORT
Denison Mines
Annual Tailings Sample
0908094-005
Contact: Steve Landau
AMERICAN Client Sample ID: Slimes C2
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
Collection Date:
Received Date:
8/4/200910:35:00 AM
8/6/2009
Method Used: SW8260C
Analyzed: 8/12/2009 9:58:00 PM
Analytical Results VOAs by GCIMS Method 8260C/S030C
Units: Ilg/L
Dilution Factor: 50
Compound
Tetrahydrofuran
Surr: 1,2-Dichloroethane-d4
Surr: 4-Bromofluorobenzene
Surr: Dibromofluoromethane
Surr: Toluene-d8
The reporting limits were raised due to sample matrix interferences.
CAS
Number
109-99-9
17060-07-0
460-00-4
1868-53-7
2037-26-5
Reporting Analytical
Limit Result Qual
100 < 100
77-144 90.0
80-123 111
80-124 92.6
80-125 108
Report Date: 8/13/2009 Page 6 of 8
All analyses applicable Lo Ihe CWA, SDWA, and RCRA are perfonned in accordance to NELAC prolocols. Pertinent sampling infonnation is 10caLed on Ihe allached COCo This report is provided for the exclusive use ofthe
addressee, Privileges of subsequent use 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
wilh the re-publication of this report for any purpose olher than for the addressee will be granted only on contact This compaoy accepts no responsibiliLy except for the due perfonnance of inspection and/or analysis in good faith
a.nd according to the rules of the trade and of science.
A ORGANIC ANALYTICAL REPORT
Client:
Project ID:
Lab Sample ID:
Denison Mines
Annual Tailings Sample
0908094-006
AMERICAN Client Sample ID: C2 LDS
Collection Date:
Received Date:
8/4/200911:25:00 AM
8/6/2009
Method Used: SW8260C
Contact: Steve Landau
Analyzed: 8/12/20099:33:00 PM WEST
ANALYTICAL
LAB ORA TORIES
Analytical Results VOAs by GCIMS Method 8260C/5030C
463 West 3600 South
Salt Lake City, UT
Units: IlgiL
Dilution Factor: 50
Compound
84115 Tetrahydrofuran
[phone]
Toll Free [phone]
Fax [phone]
email: [e-mail]
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Surr: 1,2-Dichloroethane-d4
Surr: 4-Bromofluorobenzene
Surr: Dibromofluoromethane
Surr: Toluene-d8
The pH of the sample was >2.
The reporting limits were raised due to sample matrix interferences.
CAS
Number
109-99-9
17060-07-0
460-00-4
1868-53-7
2037-26-5
Reporting
Limit
100
77-144
80-123
80-124
80-125
Analytical
Result
< 100
86.7
108
91.1
108
Qual
Report Date: 8/13/2009 Page 7 of8
All analyses applicable La the CWA, SDWA, and ReRA are perfonned in Ilccordance to NELAC protocols. Pertinent sampling information is located on the attached COCo This-report is provided for the exclusive use oflhe
addressee. Privileges of subsequent use oflhe name of this company or any member of its staff, or reproduction of this report in connection with the advertisement, promotion or sale of Bny product or process, or in connection
with the re-publication of this report for any purpose other than for the addressee will be gnmted only on contact. Thill compBny accepts no responsibility except for the due perfonnance of inspecLion andlor analysis in good faith
snd according to the ruLes of the trade Bnd of science.
A
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
ORGANIC ANALYTICAL REPORT
Client:
Project ID:
Lab Sample ID:
Denison Mines
Annual Tailings Sample
0908094-004
Client Sample ID: Cell 3
Collection Date: 8/4/2009 1 :20:00 PM
Received Date: 8/6/2009
Metbod Used: SW8260C
Contact: Steve Landau
Analyzed: 8/10/20097:12:00 PM
Analytical Results VOAs by GC/MS Method 8260C/5030C
Units: J1g/L
Dilution Factor: 50
Compound
Tetrahydrofuran
Surr: 1,2-Dichloroethane-d4
Surr: 4-Bromofluorobenzene
Surr: Dibromofluoromethane
Surr: Toluene-d8
The reporting limits were raised due to sample matrix interferences.
CAS
Number
109-99-9
17060-07-0
460-00-4
1868-53-7
2037-26-5
Reporting Analytical
Limit Result Qual
100 < 100
77-144 97.5
80-123 104
80-124 95.9
80-125 102
Report Date: 8/13/2009 Page 5 of8
All analyses applicable to the CWA. SDWA. and RCRA are perfonned 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 subsequenL use of the name of this company or any member of its staff, or reproduction of this report in connection with the advertisement, promolion or sale of Bny product or process, or in connection
with Ihe 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 faith
and according to the rules of the lradc oDd of science.
A Client:
Project ID:
Lab Sample ID:
ORGANIC ANALYTICAL REPORT
Denison Mines
Annual Tailings Sample
0908094-002
Contact: Steve Landau
AMERICAN Client Sample ID: C4A
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
Collection Date:
Received Date:
8/4/2009 2:30:00 PM
8/6/2009
Method Used: SW8260C
Analyzed: 8/10/20095:54:00 PM
Analytical Results VOAs by GC/MS Method 8260CI5030C
Units: ~gIL
Dilution Factor: 50 CAS Reporting Analytical
Compound Number Limit Result Qual
Tetrahydrofuran 109-99-9 100 < 100
SUIT: 1,2-Dichloroethane-d4 17060-07-0 77-144 95.9
SUIT: 4-Bromofluorobenzene 460-00-4 80-123 107
SUIT: Dibromofluoromethane 1868-53-7 80-124 95.2
SUIT: Toluene-d8 2037-26-5 80-125 104
The reporting limits were raised due to sample matrix interforences.
Report Date: 8/13/2009 Page 3 of 8
All analyses applicable to the CWA, SDWA. ond RCRA are performed in accordance to NELAC protocols. Pertinent 5ampling 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 statT, or reproduction ofthis report in connection wilh the advertisement, promoLion or sale of any product or process, or iD 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 inspectioD aDd/or analysis in good faith
and according to the roles of the trade and of science.
A
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
ORGANIC ANAL YTICAL REPORT
Client:
Project ID:
Lab Sample In:
Denison Mines
Annual Tailings Sample
0908094-007
Client Sample In: FD4A
Collection Date: 817/2009 2:30:00 PM
Received Date: 8/6/2009
Method Used: SW8260C
Contact: Steve Landau
Analyzed: 8/12/2009 10:24:00 PM
Analytical Results VOAs by GCIMS Method 8260CIS030C
Units: ~glL
Dilution Factor: 50 CAS Reporting Analytical
Compound Number Limit Result Qual
Tetrahydrofuran 109-99-9 100 < 100
Surr: 1,2-Dichloroethane-d4 17060-07-0 77-144 86.3
Surr: 4-Bromofluorobenzene 460-00-4 80-123 111
Surr: Dibromofluoromethane 1868-53-7 80-124 90.9
Surr: Toluene-d8 2037-26-5 80-125 109
The reporting limits were raised due to sample matrix Interferences.
Report Date: 8/13/2009 Page 8 of8
AlL analyses applicable to the CWA. SDWA, and ReRA are pcrfonned in accordance to NELAC protocoLs, Pertinent sampling Lofonnation is located on the attached COCo This report is provided for the exclusive usc of the
addressee. PriviJegcs of subsequent use of the name of this company Or any member cfils staff, or reproduction of this report in connection with tbe advertisement, promotion or saJe of any product or process, or in connection
wiLh the Te-publication of this report for any purpose other tban 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:
ProjectID:
ORGANIC ANALYTICAL REPORT
Denison Mines
Annual Tailings Sample
Steve Landau Contact:
Lab Sample ID: 0908094-001
AMERICAN Client Sample ID: C4A LDS
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
Collection Date:
Received Date:
8/4/2009 3:05:00 PM
8/6/2009
Method Used: SW8260C
Analyzed: 8/10120095:29:00 PM
Analytical Results VOAs by GC/MS Method 8260CI5030C
Units: ~g/L
Dilution Factor: 50
Compound
Tetrahydrofuran
Surr: 1,2-Dichloroethane-d4
Surr: 4-Bromofluorobenzene
Surr: Dibromofluoromethane
Surr: Toluene-d8
The reporting limits were raised due to sample matrix interferences.
CAS
Number
109-99-9
17060-07-0
460-00-4
1868-53-7
2037-26-5
Reporting Analytical
Limit Result Qual
100 140
77-144 97.6
80-123 106
80-124 96.7
80-125 103
Report Date: 8/13/2009 Page 2 of 8
All analyses applicable to the CWA, SDWA, and RCRA are performed in accordlffice to NELAC protocols. Pertinent sampling infonnalion is Located on the attached COCo This report is provided for the exclusive use ofthe
addressee. Privileges of subsequent use 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 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 faith
and according to the rules ofthe trnde and of science.
-------------------------
Sheet 1 of 1
CHAIN OF CUSTODY
Samples Shipped to: American West Analytical Lab
463 West 3600 South
Contact: Ryan Palmer or David Turk
Ph: 435 678 2221
Salt Lake City, Ut 84115 [e-mail]
[e-mail]
Chain of Custody/Sampling Analysis ~equest
roect P j S amp ers N arne s S' t amplers Igna ure
annual Tailings Sample Tanner Holliday, and Ryan Palmer 1Z7t?
/I '--
Date Time
Laboratory fnalYSiS Requested SamplelD Collected Collected
C4A LDS 8/4/2009 1505 THF
C4A 8/4/2009 1430 THF
Cell 1 8/4/2009 945 THF
Cell 3 8/4/2009 1320 THF
Slimes C2 8/4/2009 1035 THF
C2LDS 8/4/2009 1125 THF
FD4A 8/4/2009 1430 THF
THF
Please nofify Ryan Palmer of Reciapt tempature on these samples Immediatelyl Thank you.~
Relinquished By:(Signature)
DatelTime Received By:(Signature)
8/5/2009
1245
Date/fime Received By:(Signature) *'
DatelTime
---. -----_. ---------------------------------------.--.. ------------------
Lab Set ID: DJ D s{ 01 Y
Sarnllles Were: COC Tape Was: Container. Type:
D Ship~ed By: Present on Outer Pacl~age D A W AL Supplied Plastic
ffHand Delivered DYes ~ DNfA o A W AL Supplied Clear Glass /'
D A.mbient Unbroi{en on Outer ~age o A WAL Supplied Amber Glass ~
QlChilied DYes DNo . fA o A WAL Supplied VOAffo:aIS
Temperature 3"'0 °C Present on Sample o Amber 0 Clear D Head~a No Headspace
DYes ~ oNfA Rec,BrokenfL~g ' DYes ovNo DNfA D Non A WAL Supplied ~tainer
Notes: Unbroken on sa;;:1e / I DYes DNa fA
Properly Preserved J?[Yes DNo DN/A Notes:
Notes:
/
Rec. Within Hold tYfes oNo Discrepancies Between Labels ~nd COC
Notes: Notes:
~
/~ -.
/"
Bottle Type Preservative . AllpHs OK ../ ,,/
Ammonia pH <2 H2S04 " /"
COD pH <2 H2SO4 ../'
Cyanide PH >12 NaOH ....... V
Metals pH<2HN03 /"
N02 &N03 pH'<2H2S04 /
Nutrients pH <2 H2S04 ./" -
O&G pH<2HCL ./" .. ,-.
Phenols pH <2 H2S04 /.
Sulfide pH> 9NaOH, ZnAC /.
TKN pH <2 H2S04 ,,/ ;'
TOC pH<2H3P04 /"
TP04 pH<2H~
TPH pH,;;ZfICL
V
/
/'
Pr'ocedure.
/'
1)
2)
3)
4)
5)
6)
7)
.
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 preserved properly list its extension and receiving pH in the appropriate column above
Flag COC and notify client for further instructions
Place client conversation on COC
Samples may be adjusted at client request
.
W7
No.J3.¥'
/
,
DYes ~o
I
TabE
Quality Assurance and Data Validation Tables
Table E-l Holding Time Evaluation
Slimes 65
CellI Cell 2 (Duplicate Cell 3 Cell4A
Tailings Slimes of Cell 2 Cell 2 LDS Tailings Tailings Cell 4 LDS
Fluid Drain Slimes Fluid Fluid
Required Holding Time Drain)
Major Ions
Carbonate 14 days OK OK OK OK OK OK OK
Bicarbonate 14 days OK OK OK OK OK OK OK
Calcium 6 months OK OK OK OK OK OK OK
Chloride 28 days OK OK OK OK OK OK OK
Fluoride 28 days OK OK OK OK OK OK OK
Magnesium 6 months OK OK OK OK OK OK OK
Nitrogen-Ammonia 28 days OK OK OK OK OK OK OK
Nitrogen-Nitrate 28 days OK OK OK OK OK OK OK
Potassium 6 months OK OK OK OK OK OK OK
Sodium 6 months OK OK OK OK OK OK OK
Sulfate 28 days OK OK OK OK OK OK OK
pH (s.u.) N/A OK OK OK OK OK OK OK
TDS 7 days OK OK OK OK OK OK OK
Conductivity (umbos/em) N/A OK OK OK OK OK OK OK
6 months (except mercury
Metals whieh is 28 days) OK OK OK OK OK OK OK
Radiologies 6 months OK OK OK OK OK OK OK
VOCS (including THF) 14 days OK OK OK OK OK OK OK
7 days to extractionl40 days
SVOCS for analysis OK OK OK OK OK OK OK _ .. _-------
H Laboratory Receipt TemperatLLl"C Check
Work Order Number/Lab
SetID Receipt Temp
I}Lr-CIOO80205 2°C
AWAL-IOO8101 JOC
E-3: Analytical Method Check -Routine Samples
Parameter QAPlPermit Method Method Used by Lab
Ammonia (as N) A4500-NH3 G A4500-NH3 G
Nitrate + Nitrite (as N) E353.2 E353.2
Metals except Iron E200.8 E200.8
Iron E200.7 E200.7
Gross Alpha E900.1 E900.1
VOCs except Tetrahydrofuran SW8260B SW8260B
Tetrahydrofuran SW8260C SW8260C
Chloride A4500-CIB A4500-CI 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 RC03 A2320 B A2320B
Calcium, Magnesium, Potassium, Sodium E200.7 E200.7
SVOCs 8270D 8270D
E-4 Reporting Limit Evaluation
Parameter Permit-Specified RL
Ammonia (as N) 25 mg/L
Nitrate + Nitrite (as N) 10 mg/L
Metals ug/L
Arsenic 50
Beryllium 4
Cadmium 5
Chromium 100
Cobalt 730
Copper 1300
Iron 11000
Lead 15
Manganese 800
Mercury 2
Molybdenum 40
Nickel 100
Selenium 50
Silver 100
Thallium 2
Tin 17000
Uranium 30
Vanadium 60
Zinc 5000
Gross Alpha 15
VOCs ug/L
Acetone 700
Benzene 5
Carbon tetrachloride 5
Chloroform 70
Chloromethane 30
MEK 4000
Methylene Chloride 5
Naphthalene 100
Tetrahydrofuran 46
Toluene 1000
Xylenes 10000
Chloride 1.0 mg/L
Fluoride 4mg/L
Sulfate 1000 mg/L
TDS 1000 mg/L
Carbonate as C03, Bicarbonate as HC03 1*
Calcium, Magnesium, Potassium, Sodium 1*
SVOCs (from the 8270D LLD) ug/L
1,2,4-Trichlorobenzene 10
l,2-Dichlorobenzene 10
l,3-Dichlorobenzene 10
E-4 Reporting Limit Evaluation
Parameter Permit-Specified RL
1,4-Dichlorobenzene 10
I-Methylnaphthalene 10
2,4,5-Trichlorophenol 10
2,4,6-Trichlorophenol 10
2,4-Dichlorophenol 10
2,4-Dimethylphenol 10
2,4-Dinitrophenol 50
2,4-Dinitrotoluene 10
2,6-Dinitrotoluene 10
2-Chloronaphthalene 10
2-Chlorophenol 10
2-Methy lnaphthalene 10
2-Methylphenol 10
2-Nitrophenol 10
3&4-Methylphenol 10
3,3' -Dichlorobenzidine 20
4,6-Dinitro-2-methylphenol 50
4-Bromophenyl phenyl ether 10
4-Chloro-3-methylphenol 20
4-Chlorophenyl phenyl ether 10
4-Nitrophenol 50
Acenaphthene 10
Acenaphthylene 10
Anthracene 10
Azobenzene 10*
Benz(a)anthracene 10
Benzidine 10*
Benzo(a)pyrene 10
Benzo(b )t1uoranthene 10
Benzo(g,h,i)perylene 10
Benzo(k)t1uoranthene 10
Bis(2-chloroethoxy)methane 10
Bis(2-chloroethyl) ether 10
Bis(2-chloroisopropyl) ether 10
Bis(2-ethylhexyl) phthalate 10*
Butyl benzyl phthalate 10
Chrysene 10
Dibenz(a,h)anthracene 10
Diethyl phthalate 10
Dimethyl phthalate 10
Di-n-butyl phthalate 10
Di-n-octyl phthalate 10
Fluoranthene 10
Fluorene 10
Hexachlorobenzene 10
E-4 Reporting Limit Evaluation
Parameter
Hexachlorobutadiene
Hexachlorocyclopentadiene
Hexachloroethane
Indeno( 1 ,2,3-cd)pyrene
Isophorone
Naphthalene
Nitrobenzene
N-Nitrosodimethylamine
N-Nitrosodi-n-propylamine
N-Nitrosodiphenylamine
Pentachlorophenol
Phenanthrene
Phenol
Pyrene
Pyridine
All analyses were reported to the required
RLs unless noted in the text.
* Reporting limits for these analytes are not specified
in either the Permit or EPA Method 8270C. The
reporting limits established by the laboratory are
reported here. The reporting limits are comparable to
other analytes in the same method.
Permit-Specified RL
10
10
10
10
10
10
10
10*
10
10
50
10
10
10
10*
E-5: Trip Blank Evaluation
All trip blanks for the 2010 sampling program were nondetect.
Blank Sample Date Laboratory
1 8/3/2010 AWAL
2 40393 EL
E-6 Duplicate Sample Relative Percent Difference
Cell 2 Slimes Drain Sliines 6S RPD%
Major lon$ (mgll)
Carbonate <1 <1 NA
Bicarbonate <1 <1 NA
Calcium 496 501 1
Chloride 3510 4590 26.7
Fluoride 2.4 2.6 8
Magnesium 3790 3750 1.1
Nitrogen-Ammonia 3820 3470 9.6
Nitrogen-Nitrate 126 122 3.2
Potassium 620 618 0.3
Sodium 4770 4610 3.4
Sulfate 63700 63200 0.8
pH (s.u.) 3.39 3.39 0
TDS 79900 79200 0.9
Conductivity (umhos/cm) 60200 60200 0
Metals (ugll)
Arsenic 23500 23300 0.9
Beryllium 267 282 5.5
Cadmium 6370 6320 0.8
Chromium 2510 2480 1.2
Cobalt 48200 48100 0.2
Copper 148000 146000 1.4
Iron 2720000 2770000 1.8
Lead 586 579 1.2
Manganese 144000 141000 2.1
Mercury <4 <4 NA
Molybdenum 4630 4680 l.l
Nickel 126000 125000 0.8
Selenium 844 839 0.6
Silver <10 <10 NA
Thallium 470 464 1.3
Tin <100 <100 NA
Uranium 30600 31100 1.6
Vanadium 469000 468000 0.2
Zinc 652000 650000 0.3
Radiologics (pCilI)
Gross Alpha 1000 986 1.4
VOCS (ug/L)
Acetone 460 490 6.3
Benzene <1 <1 NA
Carbon tetrachloride <1 <1 NA
Chloroform 15 17 12.5
Chloromethane 2.3 2.4 4.3
MEK 83 84 1.2
E-6 Duplicate Sample Relative Percent Difference
Cell 2 Slimes Drain Slimes 65 RPD%
Major lons (mgll)
Methylene Chloride <1 <1 NA
Naphthalene 17 17 0
Tetrahydrofuran <10 <10 NA
Toluene 2.6 2.7 3.8
Xylenes 2.2 2.4 8.7
SVOCS (ugIL)
1,2,4-Trichlorobenzene <10 <10 NA
1,2-Dichlorobenzene <10 <10 NA
1,3-Dichlorobenzene <10 <10 NA
1,4-Dichlorobenzene <10 <10 NA
I-Methylnaphthalene <10 <10 NA
2,4,5-Trichlorophenol <10 <10 NA
2,4,6-Trichlorophenol <10 <10 NA
2,4-Dichlorophenol <10 <10 NA
2,4-Dimethylphenol <20 <20 NA
2,4-Dinitrophenol <10 <10 NA
2,4-Dinitrotoluene <10 <10 NA
2,6-Dinitrotoluene <10 <10 NA
2-Chloronaphthalene <10 <10 NA
2-Chlorophenol <10 <10 NA
2-Methylnaphthalene <10 <10 NA
2-Methylphenol <10 <10 NA
2-Nitrophenol <10 <10 NA
3&4-Methylphenol <10 <10 NA
3,3' -Dichlorobenzidine <10 <10 NA
4,6-Dinitro-2-methylphenol <10 <10 NA
4-BromophenyI phenyl ether <10 <10 NA
4-Chloro-3-methylphenol <10 <10 NA
4-Chlorophenyl phenyl ether <10 <10 NA
4-Nitrophenol <10 <10 NA
Acenaphthene <10 <10 NA
Acenaphthylene <10 <10 NA
Anthracene <10 <10 NA
Azobenzene <10 <10 NA
Benz( a) anthracene <10 <10 NA
Benzidine <10 <10 NA
Benzo(a)pyrene <10 <10 NA
Benzo(b )fluoranthene <10 <10 NA
Benzo(g,h,i)perylene <10 <10 NA
Benzo(k)fluoranthene <10 <10 NA
Bis(2-chloroethoxy)methane <10 <10 NA
Bis(2-chloroethyl) ether <10 <10 NA
Bis(2-chloroisopropyl) ether <10 <10 NA
E-6 Duplicate Sample Relative Percent Difference
Cell 2 Slimes Drain Slimes 65 RPD%
Major IonS (mg/I)
Bis(2-ethylhexyl) phthalate <10 22 NA
Butyl benzyl phthalate <10 <10 NA
Chrysene <10 <10 NA
Dibenz( a,h )anthracene <10 <10 NA
Diethyl phthalate <10 <10 NA
Dimethyl phthalate <10 <10 NA
Di-n-butyl phthalate <10 <10 NA
Di-n-octyl phthalate <10 <10 NA
Fluoranthene <10 <10 NA
Fluorene <10 <10 NA
Hexachlorobenzene <10 <10 NA
Hexachlorobutadiene <10 <10 NA
Hexachlorocyclopentadiene <10 <10 NA
Hexachloroethane <10 <10 NA
Indeno( 1 ,2,3-cd)pyrene <10 <10 NA
Isophorone <10 <10 NA
Naphthalene <10 <10 NA
Nitrobenzene <10 <10 NA
N-Nitrosodimethylamine <10 <10 NA
N-Nitrosodi-n-propy1amine <10 <10 NA
N-Nitrosodiphenylamine <10 <10 NA
Pentachlorophenol <10 <10 NA
Phenanthrene <10 <10 NA
Phenol 10.7 <10 NA
Pyrene <10 <10 NA
Pyridine <10 <10 NA
Highlighted cells indicate an RPD that exceeded the 20% RPD criteria
E 7 Rd' I . C E -a 10 ogles ouotlng 'rror
Gros Alpha Counting
Gross Alpha minus Rn & U Error $ Wit It in
SampleID minus Rn & U Precision (±) 20% GWQS GWQS
Cell I 11300 82 Y 15 NA
Cell 2 Slimes 1000 24.6 Y 15 NA
Cell 2 LOS 7.3 2.6 N 15 Y
Cell 3 4030 48.7 Y 15 NA
Ce1l4A 3400 45 Y 15 NA
Cell 4 A LDS 3230 43.1 Y 15 NA
Slimes 65 986 23.9 Y 15 NA
Duplicate Check Calculation = 0.408
E-8: Laboratory Matrix QC
Matrix Spike % Recovery Comparison
MSD
Lab Report Sample ID Analyte MS%REC %REC RECRange RPD
1008101 Cell 2 Slimes 1,2,4-Trichlorobenzene 10.9 11.8 20 -107 7.9
1008101 Cell 2 Slimes 1,4-Dichlorobenzene 0 0 II -90 0
1008101 Cell 2 Slimes 2,4-Dinitotoluene 0 7.65 21-191 NC
1008101 Cell 2 Slimes 4,6-Dinitro-2-methlyphenol 13.1 13.1 20 -250 0
1008101 Cell 2 Slimes 4-Nitrophenol 0 0 10 -135 0
CI0080205 NA Silver 51 77 70 -130 40
CI0080205 Cell 2 LDS Chloromethane 131 131 70 -130 0
CI0080205 Cell 2 LDS Methylene Chloride 133 126 70 -130 5.2
NA = MS samples were not Denison samples.
Surrogate % Recovery
Lab QAP
Surrogate Specified Required
Lab Report Well/Sample Analyte %REC RECRange Range
1008101 Cell 2 Slimes Nitrobenzene-d5 0.825 10 -180 None
1008101 Cell 2 Slimes MS Nitrobenzene-d5 0.85 10 -180 None
1008101 Cell 2 Slimes MSI N itrobenzene-d5 0.725 10 -180 None
Method Blank detections
Reported
Lab Report Well/Sample Analyte Concentration
CI0080205 NA Alkalinity, Total as CaC03 I mgIL
CI0080205 NA Bicarbonate as RC03 2mgIL
CI0080205 NA Chromium 0.00006 mg/L
CI0080205 NA Selenium 0.0003 mg/L
C10080205 NA Vanadium 0.00004 mgIL