DRC-2011-007631 - 0901a0688029173f

DENISON
MINES
Denison Mines (USA) Corp.
1050 1 7th Street, Suite 950
Denver, CO 80265
USA
Tel: [phone]
Fax:[phone]
www.denisohmlne8.com
Sent VIA Federal Express
November 30, 2011
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 Gity, UT 84114-4820
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 2011 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 Ann Tischler
Director, Compliance and Permitting
CC: Ron F. Hochstein
David C. Frydenlund
Harold R. Roberts
David E. Turk
Kathy Weinel
OENISOJ)JJ
MINES
Sent VIA Federal Express
November 30, 2011
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: [phone]
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 2011 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,../' II /J fo~~
DENISON MINES (USA) CORP.
JoAnn Tischler
Director, Compliance and Permitting
CC: Ron F. Hochstein
David C. Frydenlund
Harold R. Roberts
David E. Turk
Kathy Weinel
White Mesa Uranium Mill
2011 Annual Tailings Cells Wastewater Sampling
Report
State of Utah
Groundwater Discharge Permit No. UGW370004
Prepared by:
Denison Mines (USA) Corp.
1050 1 i h Street, Suite 950
Denver CO 80265
November 30, 2011
TABLE OF CONTENTS
1.0 INTRODUCTION .................................................................................................................... 1
1.1 Sampling Plan Revisions ...................................................................................................... 1
2.0 SAMPLING EVENTS AND SAMPLING METHODOLOGy .............................................. 1
2.1 Sampling Events ................................................................................................................... 1
2.2.1 Tailings Wastewater Compliance Monitoring ............................................................... 2
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 ........................................................................................................ 3
2.3.3 Cell 4A and Ce1l4B Leak Detection Systems ............................................................... 3
2.3.4 Cells 1 and 3 Leak Detection System ............................................................................ 3
2.3.5 Cell 2 Leak Detection System ........................................................................................ 4
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 ............................................................................................... 6
3.3.3 Laboratory Receipt Temperature Check ........................................................................ 6
3.3.4 Analytical Method Check .............................................................................................. 7
3.3.5 Reporting Limit Evaluation ........................................................................................... 7
3.3.6 Trip Blank Evaluation .................................................................................................... 7
3.3.7 QAlQC Evaluation for Sample Duplicates .................................................................... 7
3.3.8 Radiologics Counting Error ........................................................................................... 8
3.3.9 Laboratory Matrix QC Evaluation ................................................................................. 8
4.0 HISTORIC DATA .................................................................................................................. 10
5.0 SUMMARY AND CONCLUSIONS ..................................................................................... 11
5.1 Cell 1 ................................................................................................................................... 11
5.2 Cell 3 ................................................................................................................................... 11
5.3 Ce1l4A ................................................................................................................................ 11
5.4 Ce1l4B ................................................................................................................................ 12
5.5 Cell 2 Slimes Drain ............................................................................................................. 12
5.6 Cells 3, 4A and 4B Slimes Drain ........................................................................................ 12
5.7 Cell 2 Leak Detection System ............................................................................................. 13
5.8 Cells 1 and 3 Leak Detection System ................................................................................. 13
5.9 Ce1l4A Leak Detection System .......................................................................................... 13
5.10 Ce1l4B Leak Detection System ........................................................................................ 13
5.11 Summary and Conclusions of Analytical Results ............................................................. 14
6.0 CORRECTNE ACTION REPORT ....................................................................................... 14
6.1 Assessment of Corrective Actions from Previous Period ................................................... 14
7.0 SIGNATURE AND CERTIFICATION ................................................................................. 15
LIST OF TABLES
Table 1 Summary of Tailings Cell Wastewater Monitoring
Table 2 Summary of pH, Conductivity and Temperature Measurements
INDEX OF TABS
Tab A Tailings and Slimes Drain Field Sheets
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 QAlQC Evaluation for Sample Duplicates
E-7 Radiologics Counting Error
E-8 Laboratory Matrix QC Evaluation
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2011 ANNUAL TAILINGS CELLS WASTEWATER SAMPLING REPORT
1.0 INTRODUCTION
This is the 2011 Annual Tailings Cells Wastewater Sampling Report for the Denison Mines
(USA) Corp. ("Denison") White Mesa Mill (the "Mill"), as required under Part 1.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 1.E.1O of the
Permit to be conducted on an annual basis in August of each year for the solutions in tailings
Cells 1, 3, 4A, and 4B, the solutions in the slimes drains in Cells 2, 3, 4A, and 4B (for Cells 3,
4A and 4B after the commencement of dewatering), the solutions in the leak detection system
(LDS) in Ce1l4A and 4B 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 Division of Radiation Control ("DRC") 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.
1.1 Sampling Plan Revisions
The Mill's Tailings and Slimes Drain Sampling and Analysis Program, Revision: 0, was revised
during the 2011 reporting period. The revisions were completed to address corrective actions
delineated in the 2010 Annual Tailings and Wastewater Monitoring Report for the Mill. The
Draft Sampling Plan was submitted to DRC via e-mail for review on November 8, 2011. To date
comments have not been received from DRC on the Draft Sampling Plan.
2.0 SAMPLING EVENTS AND SAMPLING METHODOLOGY
2.1 Sampling Events
Samples of solutions from tailings Cells 1, 3, 4A, and 4B, the Cell 2 slimes drain and the Cells
4A and 4B LDSs were collected on August 24,2011.
In accordance with the Permit, DRC was notified of the sampling event and a DRC
representative was present for a part of the sampling. The DRC representative collected a split
sample of the Tailings Cell 3 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.
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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.
The Permit requires that the tailings wastewater samples be analyzed for the water quality
parameters listed in Table 2 of the Permit and Semivolati1e Organic Compounds ("SVOCs").
The Permit requires that field specific conductance ("conductivity"), pH and temperature be
measured for each sample. During this sampling event conductivity was 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. Field measurements
for pH and temperature were completed using pH paper and a glass thermometer respectively.
The analytical laboratory also completed pH measurements on the samples upon receipt. A DRC
representative was present during the sampling events for 2010 and 2011. During these
sampling events, conductivity was submitted for completion by the analytical laboratory, and the
DRC Representative present observed the procedures and posed no objections. The laboratory
measured conductivity and pH are reported in the analytical data included in Tab C. The field
data for pH and temperature and the laboratory data for pH and conductivity are included in
Table 2. 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 113 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.
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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, 4A and 4B 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
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, Revision 0, to preclude
the potential for cross contamination. This updated sampling procedure using a disposable bailer
is considered an improvement over the sampling procedures contemplated in the Sampling Plan,
Revision O. The updated procedure is included in the Sampling Plan, Revision 1, and was used
during the 2009, 2010, and 2011 sampling events. The DRC Representative present for the
entire 2009 sampling event and portions of the 2010 and 2011 sampling events 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 and Cell 4B Leak Detection Systems
The Cell4A and 4B LDS samples were collected directly from the LDS discharge lines 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 1 and 3 LDSs were not sampled during the 2011 sampling event because the systems
were dry.
The Cell 1 LDS was sampled independent of this tailings wastewater monitoring event on June
3, 2010 and August 8, 2010. These Cell 1 LDS sampling events were conducted as a result of
fluids observed in the Cell 1 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 DRC dated August 30,2010.
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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 since the placement of the cover, as evidenced
by the amount of liquid noted during the August 3, 2010 sampling event, which was only a few
inches deep. In December 2010, a large pump truck was used to remove the majority of the
remaining fluid noted during the 2010 sampling event. The pump-truck was able to remove all
but approximately one inch of the fluid in the bottom of the Cell 2 LDS.
The Cell 2 LDS was not sampled during the 2011 sampling event because approximately one
inch of fluid was present at the time of the sampling event. The one inch of fluid was not
sampled because the fluid level was too low to be withdrawn either with a pump or bailer. In
order to address the one inch of remaining fluid, Mill Personnel used cloths and disposable
towels to "soak up" the remaining fluid. The Cell 2 LDS is now dry and covered to prevent
precipitation inflow.
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 (Cell 4A BC) 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,
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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 2010 Annual Tailings Cells Wastewater Sampling Report noted that in several places the
requirements in the QAP, and Sampling Plan, Revision 0, were in conflict. To address these
inconsistencies, the Sampling Plan, Revision 0 was revised and, as previously stated, submitted
to DRC for review in November 2011. For the purposes of this data review, the Permit and the
QAP requirements were used to determine compliance. The Mill QA Manager performed a
QNQC review to confirm compliance of the monitoring program with the requirements of the
Permit and QAP. As required in the QAP, 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 QNQC are discussed in Sections 3.3.1
through 3.3.9 below.
The Analytical Laboratories have provided summary reports of the analytical QNQC
measurements necessary to maintain conformance with National Environmental Laboratory
Accreditation Conference ("NELAC") celtification and reporting protocol. The analytical
laboratory QNQC Summary Reports, including copies of the Mill's Chain of Custody and
Analytical Request Record forms for each set of Analytical Results, follow the analytical results
under Tab C. Results of review of the laboratory QNQC information 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 Permit, the QA Manager observed that
QNQC requirements established in the Permit and the QAP were being adhered to and that the
requirements were implemented as required except, as noted below.
Sampling procedures varied from those contemplated in the Revision 0, Sampling Plan as
discussed in the 2010 Annual Tailings Cells Wastewater Sampling Report for the Mill. As
previously stated, a revision to the Sampling Plan, Revision 0 that accurately reflects the
sampling procedures used during the 2009, 2010 and 2011 sampling events (e.g. the use of
disposable bailers rather than ladles and the analysis of conductivity by the laboratory) was
submitted to DRC Staff for review in November 2011. DRC has not provided comments on the
Sampling Plan to date; however, the DRC representative was present for the 2009, 2010 and
2011 sampling programs and observed the sampling procedures used. The DRC representative
made no comments regarding the sampling strategies employed. No further discussions
regarding the changes to the Revision 0 Sampling Plan sampling procedures are included.
On a review of adherence by Mill personnel to the Permit, the QA Manager observed that
QNQC requirements established in the QAP were being adhered to and that the Permit
requirements were implemented except as noted below.
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One variance from the requirements in the Permit was noted. The Permit, Section I.E.1O(d) 1)
requires the collection of field pH, temperature and conductivity. A field pH and temperature
measurement was collected at each location using pH paper and a glass thermometer
respectively. The tailings wastewater samples were analyzed for pH and conductivity by one of
the Mill's contracted laboratories. The conductivity 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 because the instruments in use
by the laboratories are "sturdier" and less apt to be affected by the tailings wastewater solutions.
Denison intends to request an amendment to the Permit or a 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 QAlQC evaluation, a receipt
temperature check, a holding time check, an analytical method check, a reporting limit check, a
trip blank check, a QAlQC evaluation of sample duplicates, a gross alpha counting error
evaluation and a review of each laboratory's reported QAlQC 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 QAP 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.
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 Permit. Sample receipt
temperature checks are provided under Tab E. All samples were received within the required
temperature limit.
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3.3.4 Analytical Method Check
All analytical methods reported by both laboratories were checked against the required methods
specified in Table 1 of the 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 one case the reported value for the analyte was higher than the
increased detection limit. The one case in which the reported value for the analyte was not
higher than the increased reporting limit involved the tetrahydrofuran ("THF") results for the
Cell 1 tailings fluid. The THF result in Cell 1 tailings fluid was reported as nondetect at 500
ug/L due to sample dilutions which were necessary due to interferences from high concentrations
of other analytes (most likely metals) in the sample. The permit requires a reporting limit less
than the Groundwater Quality Standard ("GWQS") of 46.0 ug/L. The laboratory inadvertently
reported the THF data from the diluted analysis. The laboratory did analyze the sample at a
lower dilution but due to interferences in the sample, QC failed and the analysis was not valid.
The laboratory has been advised to report all future nondetected analyses with a reporting limit
below the GWQS. The THF results for the all of the other samples were acceptable or were
diluted due to THF concentrations which resulted in the reported concentrations being higher
than the required reporting limit.
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.
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All duplicate results were within a 20% RPD except for acetone and chloroform in the duplicate
pair Cell 4NCell 4A Be. These results are greater than 5 times the required reporting limit and
the RPD is greater than 20 percent (22 and 24% respectively). The duplicate results are within
the analytical accuracy of the methods. The results with RPDs greater than 20% are likely due to
interferences present from the high concentrations of inorganic compounds present in the
samples. Because the results are within the analytical accuracy of the methods and high RPDs
are the result of interferences, the analytical results are acceptable and the data are usable.
Results of the RPD test are provided under Tab E.
3.3.8 Radiologies 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 enor term may be greater than 20% of the reported activity concentration when the sum of
the activity concentration and enor 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.
3.3.9 Laboratory Matrix QC Evaluation
Section 9.2 of the QAP requires that the laboratory's QNQC Manager check the following items
in developing data reports: (1) sample preparation information is conect and complete, (2)
analysis information is correct and complete, (3) appropriate analytical laboratory procedures are
followed, (4) analytical results are conect 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 nanative sufficiently
explains any deviation from these limits. Results of this quantitative check are provided under
Tab E. All lab QNQC 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.
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The check samples included at least the following: a method blank, a laboratory control spike
("LCS"), a matrix spike ("MS") and a matrix spike duplicate ("MSD"), or the equivalent, where
applicable. It should be noted that:
• Laboratory fortified blanks are equivalent to LCSs.
• Laboratory reagent blanks are equivalent to method blanks.
• Post digestion spikes are equivalent to MSs.
• Post digestion spike duplicates are equivalent to MSDs.
• For method E900.1, used to determine gross alpha, a sample duplicate was used instead
ofaMSD.
All qualifiers, and the corresponding explanations reported in the QAlQC Summary Reports for
any of the check samples for any of the analytical methods were reviewed by the QA Manager.
The QAP Section 8.1.2 requires that a MSIMSD (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 MSIMSD pair, and the QAP does not specify that the MSIMSD 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
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 QAlQC Summary Reports indicates that the MSIMSDs
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 below the laboratory established acceptance limits do not affect the quality or
usability of the data because the recoveries and RPDs outside of the acceptance limits are
indicative of matrix interference. The SVOC analyses were problematic due to the natural pH of
the samples as collected. The low recovery reported in the SY~C analyses was due to a matrix
interference. The laboratory (AWAL) 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.
Eleven metals MSIMSD recoveries were not calculated because the analyte level in the natural
sample was 4 times greater than the spike level added by the laboratory. It is not possible to
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calculate the MSIMSD recovery when the sample results are significantly higher than the spike
amount added. In effect, the sample results mask the spike results and the calculations are not
possible. There is no effect on the quality or usability of the data.
There were 2 metals compounds in the MS/MSD pair outside of acceptance limits in the Ce1l4A
tailings 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 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 QAlQC 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 were three surrogate compounds in the VOCs
that were above the acceptance limit specified by the laboratory. 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.
There are five surrogate recoveries outside of acceptance limits for the SY~C 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 SY~C 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
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.
Bicarbonate was reported in the method blank from EL. Method blank results are included in
Tab E. In all cases the samples were nondetect for bicarbonate. The QAP criteria was not met
because the method blank was within an order of magnitude of the sample results; however,
since the sample results were all nondetect there is no effect on the quality and usability of the
sample data. 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
10
N:\Rcquired Reports\Annual Tailings Characterization Report\201 1\2011 tailings report text.docx
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.
5.0 SUMMARY AND CONCLUSIONS
5.1 CellI
Cell 1 solutions were acidic in nature with a laboratory pH of 2.23. As expected, the solutions
contained high concentrations of metals and limited VOCs. SVOCs were not detected.
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 greater than the other metals analyzed
included arsenic, cadmium, chromium, cobalt, copper, iron, lead, manganese, molybdenum,
nickel, selenium, silver, uranium, vanadium and zinc. Regarding VOCs, acetone was detected at
approximately 3.25 times less than the 2010 sample result. Chloroform increased and
chloromethane and naphthalene decreased from the 2010 sample result. When comparing these
data to prior samplings, metals were present in similar concentration ratios to previous sample
results. Overall, the concentrations reported in the 2011 sample increased from the 2010 sample
most likely due to the maintenance shut-down during the summer months. The maintenance
shut-down minimized the fluids placed in tailings Cell 1, which allowed evaporation and
concentration of the inorganic constituents present in the tailings fluids.
5.2 Cell 3
Cell 3 solutions were acidic in nature, with a laboratory pH of 1.27. As expected, the solutions
contained high concentrations of metals and limited VOCs. SVOCs were not detected.
Regarding major ions, chloride, magnesium, ammonia, potassium, sodium and sulfate were
generally one to two orders of magnitude greater in concentration than the other major ions.
Metals exhibiting the greatest concentration by at least one order of magnitude greater than the
other metals analyzed included arsenic, cadmium, chromium, cobalt, copper, iron, lead,
manganese, molybdenum, nickel, uranium, vanadium and zinc. With respect to VOCs, acetone,
chloroform, chloromethane, methyl ethyl ketone ("MEK") methylene chloride, and naphthalene
were detected. With the exception of naphthalene, all of the VOC concentrations increased from
2010. When comparing these data to prior samplings, metals were present in similar
concentration ratios to previous sample results. Overall, the concentrations reported in the 2011
sample increased from the 2010 sample most likely due to the fact that Cell 3 is no longer used
for the disposal of fluids. The lack of fluids placed in tailings Cell 3 allowed evaporation and
concentration of the inorganic constituents present in the remaining fluids present.
5.3 Ce1l4A
Ce1l4A solutions were acidic in nature, with a laboratory pH of 1.73. As expected, the solutions
contained high concentrations of metals and limited VOCs. SVOCs were not detected. As was
the case for Cells 1 and 3, Cell 4A fluid exhibited the highest major ion concentrations for
11
N:\Required Rep0rLs\Annual Tailings Characterization Report\201 l\201 I tailings report Icxt.docx
chloride, magnesium, ammonia, potassium, sodium and sulfate. 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 and concentration ratios 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 2011 sample remained the same as 2010 or decreased from the 2010 sample.
5.4 Ce1l4B
Cell 4B solutions were acidic in nature, with a laboratory pH of 1.87. 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 commonly
used plasticizer and may be present in sampling equipment (gloves, tubing). As was the case for
Cells 1 and 3, and Cell 4A, Cell 4B fluid exhibited the highest major ion concentrations for
chloride, magnesium, ammonia, potassium, sodium and sulfate. For metals, arsenic, cobalt,
copper, iron, manganese, molybdenum, nickel, uranium, vanadium and zinc were one or more
orders of magnitude greater than the other metals analyzed. Comparison of Cell 4B fluids to
those of Cells 1, 3 and 4A reveals that Cell 4B is similar in composition and concentration ratios
to the fluids in Cells 1, 3 and 4A. VOC presence was limited, with the only measurable
compounds being acetone, chloroform, and chloromethane. Cell 4B was sampled for the first
time in 2011, and there are no historic data for comparison.
5.5 Cell 2 Slimes Drain
Cell 2 Slimes drain fluid was acidic in nature, with a laboratory pH of 3.18. As expected, the
solutions contained high concentrations of metals, and limited VOCs. SVOCs were not detected.
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, and toluene. Overall, the concentrations
reported in the 2011 sample remained approximately the same as the 2010 sample. Minor
concentration changes were noted, which are within the analytical accuracy of the methods used
for analysis.
5.6 Cells 3, 4A and 4B Slimes Drain
In accordance with the Permit, the slimes drains for Cell 3, 4A and 4B are not required to be
sampled until dewatering operations have begun. Cell 1 is an evaporation pond and does not
have a slimes drain.
12
N:IRequired ReportslAnnual Tailings Characterization Reportl201112011 tailings report tcxLdocx
5.7 Cell 2 Leak Detection System
The Cell 2 LDS was not sampled during the 2011 sampling event because approximately one
inch of fluid was present at the time of the sampling event. The one inch of fluid was not
sampled because it was not physically possible to withdraw the fluid either with a pump or
bailer. In order to address the one inch of remaining fluid, Mill Personnel used cloths and
disposable towels to "soak up" the remaining fluid. The Cell 2 LDS is now dry and covered to
prevent precipitation inflow.
5.8 Cells 1 and 3 Leak Detection System
The Cells 1 and 3 leak detection systems were not sampled during the 2011 sampling event
because the systems were dry.
5.9 Cell 4A Leak Detection System
Fluids in the Cell 4A leak detection system were 'acidic in nature with a lab pH of 2.32. As
expected, the solutions contained high concentrations of metals and limited VOCs. SVOCs were
not detected. The major ions which exhibited the greatest concentrations included chloride,
magnesium, ammonia, potassium, 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 2011 sample increased from the 2010
sample most likely due to the maintenance shut-down during the summer months. The
maintenance shut-down minimized the fluids placed in tailings Cell 4A, which allowed
evaporation and concentration of the inorganic constituents.
5.10 Cell 4B Leak Detection System
Fluids in the Cell 4B leak detection system were acidic in nature with a lab pH of 2.23. 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 commonly used plasticizer and may be present in sampling equipment (gloves,
tubing). The major ions which exhibited the greatest concentrations included chloride,
magnesium, ammonia, potassium, 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, and tetrahydrofuran were measured at low concentration. The
Cell 4B LDS was sampled for the first time in 2011 and there are no historic data for
comparison.
13
N:IRequircd RcportslAnnuaJ Tailings Characterization Reportl201 11201 J tailings repOit text.docx
5.11 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,
chloride, magnesium, ammonia, potassium, 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, SVOCs were not detected. Overall, the
concentrations reported in the 2011 samples increased from the 2010 samples with the specific
discussions noted by location.
6.0 CORRECTIVE ACTION REPORT
No corrective action reports are required for the 2011 annual sampling event.
6.1 Assessment of Corrective Actions from Previous Period
Below is a discussion of the corrective actions specified in the 2010 Annual Tailings Cells
Wastewater Sampling Report.
• The Permit requires the collection of field parameters including pH, conductivity and
temperature.
• Sampling procedures described in the Sampling Plan do not reflect procedures and
methods used to accommodate 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.
The problems have been investigated by the QA Manager and the verification of the corrective
actions completed. A revised Sampling Plan that accurately reflects the sampling procedures,
and addresses the inaccuracies noted in the previous report (Cell 4A LDS samples are collected
from discharge line) was submitted to DRC Staff for review in November 2011. The Draft
Sampling Plan, Revision 1, includes the procedures for collecting field parameters using pH
paper and a glass thermometer. In addition, the revised Sampling Plan notes that conductivity
will be measured by a qualified analytical laboratory. The Draft Sampling Plan, Revision 1,
includes a revised field form which prompts the Field Personnel to collect a depth to water
measurement in the slimes drains immediately before sample collection to address the
inadvertent omission of this measurement from the 2010 sampling event. All of the corrective
actions have been completed and no further corrective actions are required.
14
N:IRequired ReportslAnnual Tailings Characterization RepOItl201 11201 I tailings repon text.docx
7.0 SIGNATURE AND CERTIFICATION
This document was prepared by Denison Mines (USA) Corp. on November 30,2011.
DENISON MINES (USA) CORP.
By:
ry
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 complete. I am aware that there are significant penalties for submitting false information,
including e pos .lbility of fine and imprisonment for knowing violations.
Davi . ry enlund
Vice President, Regulatory Affairs and Counsel
Denison Mines (USA) Corp.
15
N:IRequired ReporlslAnnual Tailings Characterization Reportl2011l2011 tailings report texLdocx
TABLES
Table 1 Summary of 2011 Tailings Cell Wastewater Monitoring
Location Sample Date Date of Laboratory Work Order
Report NumberlLab Set ID
Cell 1 Tailings Fluid 8/24/11 EL -10/19/11 EL -CI1081062
AWAL -9/9/11 AWAL -1108534
Cell 2 Slimes Drain 8/24/11 EL -10/19/11 EL -CI1081062
A W AL -9/9/11 AWAL -1108534
Cell 3 Tailings Fluid 8/24/11 EL -10/19/11 EL -C11081062
AWAL -9/9/11 AWAL -1108534
Cell 4A Tailings Fluid 8/24/11 EL -10/19/11 EL -C11081062
A W AL -9/9/11 AWAL -1108534
Cell 4 LDS 8/24/11 EL -10/19/11 EL -C11081062
AWAL -9/9/11 AWAL -1108534
Cell4B Tailings Fluid 8/24/11 EL -10/19/11 EL -C11081062
AWAL -9/9/11 AWAL -1108534
Cell4B LDS 8/25/11 EL -10/19/11 EL -C11081062
AWAL -9/9/11 A WAL -1108534
Cell4A BC 8/24/11 EL -10/19/11 EL -C11081062
(Duplicate of Cell 4A AW AL -9/9/11 AWAL -1108534
LDS)
Table 2 Summary of 2011 pH, Conductivity and Temperature Measurements
Location Field pH Laboratory Field Laboratory
(S ,D.) pH Temperature Conductivity
(S.U.) (C) (umhos/cm)
Cell 1 Tailings Fluid 3.0 2.23 24.20 112,000 E
Cell 2 Slimes Drain 3.5 3.18 16.9 51,400 E
Cell 3 Tailings Fluid 1.0 1.27 25.20 86,400 E
Cell 4A Tailings Fluid 1.0 1.73 28.30 82,100 E
Cell 4 LDS 1.5 2.32 17.50 66,600 E
Cell4B Tailings Fluid 1.5 1.87 32.00 76,900 E
Cell4B LDS 2.0 2.23 20.7 63,000 E
E = Estimated result. The results exceed the instrument upper quantItatlon hmit.
INDEX OF TABS
Tab A Tailings and Slimes Drain Field Sheets
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 QAlQC Evaluation for Sample Duplicates
E-7 Radiologics Counting Error
E-8 Laboratory Matrix QC Evaluation
Tab A
Tailings and Slimes Drain Field Sheets
)
Tailings (llld Slime.~ Drnin Field Sheet
Denl~oll Mines (USA) Coq).
White Mesa Mill
Location _"'~l.L._L~ _____ _
Samplcr.~ Name and Initials -Usance H~2.J~t-.-
Time of Sampling Event ..... .LQ:""5. ... 5.l.-_____ _
WCflthel' Conditions during Event ~~~ ____ ... _ .. _.
Sampling Equipment Used (mher th,\I\ dedicllcccI) _~ B~J$k ~amp'c/ ~ • '\S 1'lICJOl\ J!1OD~hk. .f;n·V' Where Satlll>IC'.s Collected? \, .. !.J<1I' N (circle) I'
Inclicuted volume of sample collected _ b .. L~tcQ.._ ... __
Nmn¢ of Ccrtitled Analytic,)l Laboratory if Other Thl;!! Energy Lulls ~.:..~. We~r
......... _-_ .•. _-_.. ._--_._----_._-----
P J-i 3.0
J ert'Ip J.4.,20
)
)
C', .","".
"t ,
Tailings and Slime.~ Draill Fidd Sheet
Detli~on Mines (USA) Corp.
White MtlStl Mill
Dute ~~/:;J....cll
Sam(llc!'.~ Name and Init.inls .::Te..n!l~.c..Jkll.J~ . .T' H
Time of Sump ling SVeltE __ .11.55 ______ _
WC!tthCl' C~)ltclitioIlS dudug Ev~nt .s 4fW~ ____ .. __ ..
Sampling Equipmel1t (Jsed (uther than dedicated) -'13:./.s
Whore SamplC\s Collected'] &()l' N (circle)
------_._-
Lndicated volume of sample collected b l; t t:f ~ ___ _
N<1Ille of Certit1ed Annlyticill LlIb()l'illory ii' Other Thiln Energy LHos ..Ata...«Jf£LI')~e So 1-
--kTVlp \b .9
6 e~r~ S'lfYJpl cS colle (feq
33.70
)
Tailing.~ and Slimes Ornill Field Sheet
T.>ellison Milles (USA) Corp.
White Mesa Mill
Sampter!: Name 3mllnitiats ::IMl",; !J~J.~_I ij
Time of Sampling Hvent .. __ .j)...j;g ... 3....L>oO"--____ _
Weflther COllditiollS during 6Vi:llt ~(}~ ____ "_ .... " .. __
Sampling Bquipment U~ed (other lit:m dedicated) ~L5... Poet) b l~. saM pie r
.l.j-; h)'U'~'1 tl.;~?6S(tb)" Where Salllpl~.s Collected'] 0)Ol' N (circle)
LndiclIted volume of sample collected _~_~~._. __ _
p}f 1.0 --kMp .?-5.;ZD
)
)
Tailings alld Slime.~ Drain Field Sheet
Denison Mines (USA) COI'p.
White Mesa Mill
Date illgy /;)"611 F
Samplcl·.~ Name and Initial~ ~~.lJ.c,11.!'_~~
Time of Samr,ling Event .. _.Ufl=-Yu;/...,!)..~o::.....II:...-__ _
Woltthel' COIlditiollS uul'illg Bvent ~~2.'?..~:i... . __ _
Snmpling Equipment Used (otlter (han dedicaced) ..£.Ip pono.bk ~1l"I pkr ( ,4 :a'o{)
Where Smnpll!',s Collected'? Ci),r N (circl~)
{Ildicuted volume of snmple collected _.£ L: f-c<"--> __ . __ _
N(Une of CCltUied AnnlytiCil[ Laboratory if Other Than Energy Litbs ~.L~t\!L.~e~ t
(;c)tllItlCnts;
......... _-_ .. _ ..• -------
PH
leOJp
/.
---.----------
1.0
;1>.30
. LJ.5 J /s po.s c.tl, 1("
r.·l.J..~r
o o
)
Tl'Ii[ing$ and Slimes Drain Field Sheet
Denison Mill<:s (USA) Corp.
White Mesil Mill
Date Shy /g.,611
Sampter.~ Name and Inif.iflls "::::-}.wloe&JlJ.'::3-:1.1l
Time of Sampling Evel\t ...... ,_lL.(.-t,I..:.tS""'-_____ _
WCf!thel' C\mditiolls during Event ~d:)-a-b.lC?.Y.:.4.~ ___ --.-.--
Saml)ling Ciquipment (Jsed (ocher than dedicated) ~~ PMfGtb\e .5o.mp1cr, . '1S M~crOIl
Where Smupk.s Collected'~ (i)Jt. N (circle) c\;~po!i:Pllolc. fJ I }er
lndicilted volume of sample collected b L:k~ .. __
Name of Ccttified Annlyeical LO[Wl'nlol'Y if Ot.her 1'han Energy LillJs ~<D~~a~e!;) ~
C()mlllent.~:
)
... ,._ ... _--' .. _". -.. ------.--.---,-.-~-----'------,---
LS
)
)
C)
Tail ing$ and SIiOle.~ Onlin Field She.::t
Deni,~on Mines (USA) Corp,
White Me.~!1 Mill
0··.-
..
Lucation _ (.~lL.:i.I1,_____ Dllte S 12..4 Ifl.Qj I
Samrlcl',~ N"me and Initial:; ::-r"aOI,5;e.!...("'--,-HJ.Ilc.~n:J~.51+
Time of SllIllr)lillg Event _.J-=r..Y.I-_;)1--_____ _
Wcflt[lcr Conditiolls during Event &L!l.~GtO...l.t.d.~.---__
Sampling E1luipment (Jsed (IHhel' thall dedicated) ~&;L PQJ.a.bl, S,;.,mp" r.
WhCl'C S(1Il11>les Collected? (bor N (circle)
Indicated volume of sample coltectecl _~L,' -h: f' ______ _
AS M;crOf! J '~pc$.Ci.bJ-(
f; )tcr
N~IIi1e of CCt'titied Analytici)l Lnbomlory if Ocher Than Energy Luo$ ~£.i(,a!l......fi>esl
Comment.',:
......... _-_._ .. _ .. _------_.-._------,----
32.00
)
.)
)
Tlliling$ alld Slimes Dl'lIil1 Field Sheet
Denison Mines (USA) COL'!'.
White Mesu. Mill
Date
Samplers Name and Inifinls .::::('~lkUiJ~_.:r. H
Time of Sampling Event .. __ . oug~O~Q~ ____ _
Weather Conditiolls during Event ~~ ____ .... __ ..
Sompling Equipment Used (other !hall dedicated) c / s.
Whore Sumpk.s Collectcd'~ (1) or N (circle)
J:QAQ.bls, Sampler ,ys /-'1"4..1'"",., J.'~po~\(
.("j \ta'
(ndicllted volume of sample collected ___ ~~.h.:::-? __ _
NnU1e of CcrtUkd Analytical Laboratory if Other Than Energy Labs ~!:..\:~ W<!~-\-
COl1unCI\ts:
)
)
)
o
Tailings nad Slime.> Draill Field Sh.!ct
Denison Mines (USA) Coq),
White Mesa Mill
Location _,_<;'~.~.&. .... BG___ Date SI:;;.y /:J..olI
Samplcl',~ Name and Initials ..:JMlteC l1QII.J~.Y.I-!-
Time of Sampling Evcllt .. _ .. ~~15=<' ______ _
Weilthel' GOltditions dtlring Event ICl..f.'il~~J~Y.:d .. t-._. __
SalTlpling Equipment U!\ed «(Hher Ihan dedicated) --fl2 £orf4bk_~o..mrcr
Where Samples Coltected'~ 0r11' N (circle)
Indicllted volume of sample collected _.J,:;, L; t<r .?. __
. '-15 ,"1;c.ro'1
0.. ~~po$q,bl< 5) 1 h r
Nl'ltll! of CCltU1ed Analytic.,1 Laboratory ii' Olher Than Energy tnus ~.!.~~t.
C()mment.~:
TabB
Sample Location Figures
~ r--: o c
[;:
c o 0::
MW-02 •
MW-03 •
II
/I
(I
~.
CELL 1
MW-17 •
33
PIEZ-2
iii
MILL SITE
PIEZ-3
iii
OTW4·5
TW4.1 !pTW4.9 o OTW4.3 OTW4·12
fOTW4·'l1 OTW~13
TW4.~-8
OTW4·1
OTW4-4C1fVV4_14
OTW4·6
PIEZ·5 •
. -----.---~~.--.--k-.---.. --.. -.-... -.-... ---.-------------,t-__
500' o 500' 1,000'
-...... ...,..--.... ' oiiiiiiiiii--.
SCALE: 1" :: 1,000'
_~ ___ .... _ _ _______ ~,..........J
Denison Mines (USA) Corp OENISOJ)~~
MINES
REVISIONS Project: White Mesa Mill I State: UT Dale B County: San Juan
I.ocotlon: ·~rG~M~I _____ ~ ________________________ __
-Author. unknown
ANNUAL TAILINGS
SAMPLE LOCATIONS
·1;1810: Aug. 2008 Oraned By:
6J 'v ~ :Ii C)
~ '" 0 ,0.
g
-0 ..0 -0 c li:
c .P. 0-
!!l "5 ,-< ;; 0 :.:
'~
~ /" ?i
I p
. ? ,
32
r·21 ,
,-
MW·02 •
CELL 48
MW·03 •
SCALE: 1" = 1,000'
CELL 1
LEAK
DETECTION
SAMPLE
MW·17 •
PIEZ·2 •
MILL SITE
33
PIEZ.a •
OTW4·5
TW4.1 cPTW4•9
a OTW4.3 rnW4·12
IbTW4-11 OTW4.13
TW4.~-8
OTW4·1
OTW4-4rnw4•14
OTW4·6
PIEZ·5
II
Denison Mines (USA) Corp
REVISIONS Project: White Mesa Mill
0;;;;;-By County: San Juan
, 10.08 . OM Locallon:
I State: UT
SLIMES AND LEAK DETECTION
SAMPLE LOCATIONS
" Alithor. unknow';--, "O",ftedBy:
TabC
Laboratory Analytical Reports
EN:RGY
LABORAT ORIES
www.energylab.com
Analytical !xCll/snCB Sines fg5t
',:, '\ I ) ~~elena, MT 877·472~1i711 .. Billings, MT 800·735-4489 . Casper, WY 888-235-0515
~'i"" ' I Giliette,WY 866-686-7115 • Rapid City, SD 888-672-1225 • College Station, TX 888·690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: Annual Tails 2011
Lab ID: C11 081 062-001
Client Sample ID: Cell 1
Analyses Result Units
MAJOR IONS
Acidity, Total as CaC03 60000 mg/L
Carbonate as C03 ND mg/L
Bicarbonate as HC03 ND mg/L
Calcium 577 mg/L
Chloride 33800 mg/L
Fluoride 69.2 mg/L
Magnesium 14300 mg/L
Nitrogen, Ammonia as N 12900 mg/L
Nitrogen, Nitrate+Nitrite as N 212 mg/L
Potassium 4510 mg/L
Sodium 29500 mg/L
Sulfate 182000 mg/L
- Acidity reported for informational purposes due to a sample pH of less than 4.
PHYSICAL PROPERTIES
Conductivity @ 25 C
pH
Solids, Total Dissolved TDS @ 180 C
METALS -DISSOLVED
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Iron
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Tin
Uranium
Vanadium
Zinc
RADIONUCLIDES • DISSOLVED
Gross Alpha minus Rn & U
Gross Alpha minus Rn & U Precision (±)
Gross Alpha minus Rn & U MOC
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
112000 umhoslcm
2.23 S.u.
216000 mg/L
299000 ug/L
1270 ug/L
13700 ug/L
22700 ug/L
56000 ug/L
483000 ug/L
8940000 ug/L
23600 ug/L
735000 ug/L
61.4 ug/L
235000 ug/L
43700 ug/L
11600 ug/L
1110 ug/L
560 ug/L
1500 ug/L
838000 ug/L
2500000 ug/L
398000 ug/L
3610 pCi/L
14.4 pCi/L
0.3 pC ilL
MOC -Minimum detectable concentration
E -Estimated value. Result exceeds the instrument upper
quantitation limit.
Report Date: 10/19/11
Collection Date: 08/24/11 10:55
DateReceived: 08/26/11
Matrix: Aqueous
MClI
Qualifier Rl QCl Method Analysis Date 1 By
D
D
D
D
D
D
0
0
E
D
0
0
D
D
0
D
D
D
5 A2310 B 08/29/11 08: 12 1 jba
A2320 B 08/26/11 18:12 1 jba
A2320 B 08/26/11 18:12 1 jba
20 E200.7 09/12/11 11 :40 1 cp
A4500-CI B 08/31/11 14:551 wc
1.0 A4500-F C 08/29/11 10:591 jba
10 E200.7 09/12/11 11 :40 1 cp
200 A4500-NH3 G 08/29/11 15:41 I dc
20 E353.2 09/07/11 16:22 1 dc
9 E200.7 09/12/11 11 :40 I cp
40 E200.7 09/12/11 11 :40 1 cp
2000 A4500-S04 E 09/16/11 11 :54 1 wc
A2510 B 08/26/11 14:54 I wc
0.01 A4500-H B 08/26/11 14:54 I wc
1200 A2540 C 08/30/11 15:50 I Imc
5.0 E200.8 08/29/11 14:59 I sml
3.2 E200.8 08/29/11 14:59 I sml
6.7 E200.8 08/29/11 14:59 I sml
25 E200.8 08/29/11 14:59 I sml
10 E200.8 08/29/11 14:59 I sml
13 E200.8 10/10/11 13:09 I sml
200 E200.7 09/12/11 11 :40 1 cp
1.9 E200.8 08/29/11 14:59 1 sml
10 E200.8 08/29/11 14:59 I sml
2.5 E200.8 08/29/11 14:59 I sml
10 E200.8 08/29/11 14:59 I sml
20 E200.8 08/29/11 14:591 sml
5.0 E200.8 08/29/11 14:59 I sml
10 E200.8 08/29/11 14:59 1 sml
2.4 E200.8 08/29/11 14:59 1 sml
100 E200.8 09/22/11 02:42 1 sml
0.78 E200.8 08/29/11 14:59 1 sml
16 E200.8 10/10/1113:09 /sml
10 E200.8 09/22/11 02:42 I sm I
E900.1 09/11/1117:39 /ep
E900.1 09/11/11 17:39 I ep
E900.1 09/11/11 17:39 I ep
MCL -Maximum contaminant level.
ND -Not detected at the reporting limit.
D -RL increased due to sample matrix.
Page 3 of 43
'., ,Helen;l,Mt 877·412-0711 • Billings, MT 800·735-4489 . Casper, WY 888-235-0515 f, I • .:);,:~, ',_; ","" '. ;, (lill~n~,WY 866"686-7115 " Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218 EN:RGY
LA BORAT ORIES
www.energylab.com
Analytiea/ Exea//snce Sincs '952
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: Annual Tails 2011
Lab ID: C11081062-001
Client Sample ID: Ceil 1
Analyses Result Units
DATA QUALITY
AlC Balance (± 5) -0,327 %
Anions 4750 meq/L
Cations 4720 meq/L
Solids, Total Dissolved Calculated 266000 mg/L
TDS Balance (0,80 -1,20) 0,810
VOLATILE ORGANIC COMPOUNDS
Acetone 80 ug/L
Benzene ND ug/L
Carbon tetrachloride ND ug/L
Chloroform 13 ug/L
Chloromethane 3,6 ug/L
Methyl ethyl ketone ND ug/L
Methylene chloride ND ug/L
Naphthalene 2,0 ug/L
Toluene ND ug/L
Xylenes, Total ND ug/L
Surr: 1,2-Dichlorobenzene-d4 117 %REC
Surr: Dibromofluoromethane 158 %REC
Surr: p-Bromofluorobenzene 102 %REC
Surr: Toluene-d8 84,0 %REC
-This analysis has been confirmed through the analysis of an alternate sample vial.
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
S -Spike recovery outside of advisory limits,
Report Date: 10/19/11
Collection Date: 08/24/11 10:55
DateReceived: 08/26/11
Matrix: Aqueous
MCL!
Qualifier RL QCL Method Analysis Date 1 By
Calculation 10103/11 07:161 kbh
Calculation 10103/11 07:161 kbh
Calculation 10103/11 07:161 kbh
Calculation 10103/11 07:161 kbh
Calculation 10103/11 07:161 kbh
20 SW8260B 09/06/11 14:51 1 jlr
1,0 SW8260B 09/06/11 14:51 1 jlr
1,0 SW8260B 09/06/11 14 :51 1 jlr
1,0 SW8260B 09/06/11 14 :51 1 jlr
1,0 SW8260B 09/06/11 14:51 1 jlr
20 SW8260B 09/06/11 14:511 jlr
1.0 SW8260B 09/06/11 14:51 1 jlr
1.0 SW8260B 09/06/11 14:51 1 jlr
1.0 SW8260B 09/06/11 14:51 1 jlr
1,0 SW8260B 09/06/11 14:51 1 jlr
80-120 SW8260B 09/06/11 14:51 1 jlr
S 70-130 SW8260B 09/06/11 14:51 1 jlr
80-120 SW8260B 09/06/11 14:51 1 jlr
80-1 20 SW8260B 09/06/11 14:51 1 jlr
MCL -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 4 of 43
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings 2011
1108534-001A
Client Sample ID: Cell I
Collection Date: 812412011 1055h
Received Date: 8126/2011 1000h
Analytical Results
Analyzed: 8127120112308h
Units: /lg/L
Contact: Jo Ann Tischler
Method: SW8260C
VOAs Full List by GC/MS Method 8260CIS030C
463 West 3600 South Dilution Factor: 500 CAS Reporting Analytical
Salt Lake City, UT 84115 Compound Number Limit Result Qual -------------------------------------------------------------------
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-Iabs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Tetrahydrofuran
Surr: 1,2-Dichloroethane-d4
Surr: 4-Bromofluorobenzene
SUIT: Dibromofluoromethane
Surr: Toluene-d8
The reporting limits were raised due to sample matrix inteiferences.
109-99-9
17060-07-0
460-00-4
1868-53-7
2037-26-5
500 < 500
77-144 111
80-123 105
80-124 104
80-125 99.3
Report Date: 9/9/2011 Page 5 of 47
All analyses applicable to the CWA, SDWA. and RCRA are perfonncd in accordance to NELAC protocols. Pertinent sampling infonnation is located on ~hc atta~hcd cae. This report is provided for the exclusive usc. of the addressee. Privileges of
·subsequent use of the name of this company or"any member of its staff, or reproduction of this report if.) connection with the advertisement, promotion or sale.9f any product or process, or in connection with thc're-gublication 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 and/or analysis in good faith and according to the rules of the trade and of science,
ORGANIC ANALYTICAL REPORT
Client: Denison Mines
Project: Annual Tailings 2011
Lab Sample ID: 1108534-001B
American West Client Sample ID: CellI
ANA LYTICAL LABORATORIES Collection Date: 8/2412011
Received Date: 812612011
Analytical Results
Analyzed: 91712011 1709h
Units: /lg/L
463 West 3600 South Dilution Factor: 1
Salt Lake City, UT 84115 Compound
1,2,4-Trichlorobenzene
1,2-Dichlorobenzene
Phone: (80 I) 263-8686 1,3-Dichlorobenzene
Toll Free: [phone] 1,4-Dichlorobenzene
Fax: [phone] I-Methylnaphthalene
e-mail: [e-mail] 2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
web: www.awal-Iabs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
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
Benzidine
1055h
1000h
Extracted:
Contact: Jo Ann Tischler
Method: SW8270D
SVOA List by GC/MS Method 8270D/3510C
8/3012011 0933h
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
92-87-5 10.0 < 10.0
Report Date: 9/912011 Page 14 of 47
All analyses applicable to the CWA,. SDWA. and RCRA arc pcrfonncd in accordance to N.ELAC protocols. Pertinent sampling infonnalion is loc~ted on the attached COCo This report is provided for. th~ exclusive usc of the addressee. Privileges of
subsequent use or the namc1)ft~.is company or any member of its stafT, or rcproduction .. ofthis report in connection with the advcrliscmcnt;'pro:lllOlion or sale of any product or process, or in conlTCcti.9n with-the fe-publication orthis report t'Or any
purpose other than for the addressce will be granted only on contact. This company accepts no responsibility exccpt for the due performance of inspection and/or analysis in good faith and according to the rules oflhe trade and of science.
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Lab Sample ID: 1108534-001B
Client Sample ID: CellI
Analyzed: 91712011 1709h Extracted:
Units: iJ.g/L
Dilution Factor: 1
Compound
Benzo(a)pyrene
Benzo(b )fluoranthene
Benzo(g,h,i)perylene
Benzo(k)fluoranthene
B is(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
Hexachlorocyclopentadiene
Hexachloroethane
Indeno( 1 ,2,3-cd)pyrene
Isophorone
N -Nitrosodimethylamine
N-Nitrosodiphenylamine
N-Nitrosodi-n-propylamine
Naphthalene
Nitrobenzene
Pentachlorophenol
Phenanthrene
Phenol
Pyrene
Pyridine
SUIT: 2,4,6-Tribromophenol
Surr: 2-Fluorobiphenyl
SUIT: 2-Fluorophenol
SUIT: Nitrobenzene-d5
8/30/2011 0933h
CAS Reporting Analytical
Number Limit Result Qual
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
87-86-5 10.0 < 10.0
85-01-8 10.0 < 10.0
108-95-2 10.0 < 10.0
129-00-0 10.0 < 10.0
110-86-1 10.0 < 10.0
118-79-6 14-159 38.8
321-60-8 10-124 33.2
367-12-4 10-106 13.2
4165-60-0 10-180 52.1
Report Date: 9/9/2011 Page 15 of47
All anaiY,5cs applicable to the CWA. SDWA, and RCRA arc pcrfonncd in accordanc~ to NELAC protocols. Pertinent sll;lllpling infomlalion is located on the attached COCo Tlt,is report is provided for the qxclusivc usc of the addrcs~ec. Privileges of
subsequent usc of the name of this company or any member Q.f its stafr, or reproduction of this report in connection w.ith the advertisement, promotion or sale of any produc,!, or process, or in connection with the fe-publication oflhis 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 trade and of science.
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-Iabs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Lab Sample ID: 1108534-00lB
Client Sample ID: Cell 1
Analyzed: 91712011 1709h
Units: Jlg/L
Dilution Factor: 1
Compound
Surr: Phenol-d6
SUIT: Terphenyl-dl4
Extracted: 8130/2011 0933h
CAS
Number
13127-88-3
1718-51-0
This sample was analyzed for the TIC compound 4-Chlorophenol and was not detected.
Reporting Analytical
Limit Result Qual
10-122 27.4
10-199 77.2
Report Date: 9/9/2011 Page 16 of 47
All analyses applicable to the CWA"SPWA, and RCRA arc pcrfonncd in accordance to N"E~AC protocols. Pertinent sampling information is locatcc;l on the attached COCo This report is provided for the.e;<clu~ive use of the addressee. Privileges of
subsequent usc of the name of {his .90mpany or any member of its staff. or reproduction oOhis report in connection with the advertisement, pron1Q.tion or sale of any product or process, or in connection,with the fe-publication oflhis report for any
purpose other than for the addressee will be granted only on contact. TIlis company accepts no responsibility except for the due perfonImnce of inspection and/or analysis in good faith and according to. the rules of the trade and of science.
EI\ERGY
LABORAT ORIES
www.energylab.com
Analytical £XCll/sncs Sines /6S2
Heiena, MT877-472-0711 -Billings, MT 800-735-4489 . Casper, WY 888-235-0515
Gillette, WY 866-686-7175 • Rapid City, SD 888-672-1225 • College Station, TX 888-69D-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: Annual Tails 2011
Lab 10: C 11081062-002
Client Sample 10: Cell 2
Analyses Result Units
MAJOR IONS
Acidity, Total as CaC03 31500 mg/l
Carbonate as C03 ND mg/L
Bicarbonate as HC03 ND mg/L
Calcium 474 mg/L
Chloride 3110 mg/L
Fluoride 2.1 mg/L
Magnesium 3640 mg/L
Nitrogen, Ammonia as N 2940 mg/L
Nitrogen, Nitrate+Nitrite as N 38 mg/L
Potassium 636 mg/L
Sodium 4590 mg/L
Sulfate 64200 mg/L
- Acidity reported for informational purposes due to a sample pH of less than 4.
PHYSICAL PROPERTIES
Conductivity @ 25 C
pH
Solids, Total Dissolved TDS@ 180 C
METALS -DISSOLVED
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Iron
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Tin
Uranium
Vanadium
Zinc
RADIONUCLIDES -DISSOLVED
Gross Alpha minus Rn & U
Gross Alpha minus Rn & U Precision (±)
Gross Alpha minus Rn & U MDC
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
51400 umhos/cm
3.18 s.u.
80200 mg/L
17800 ug/L
231 ug/L
5580 ug/L
2380 ug/L
42500 ug/L
132000 ug/L
2960000 ug/L
501 ug/L
123000 ug/L
11.1 ug/L
3510 ug/L
111000 ug/L
714 ug/L
ND ug/L
371 ug/L
ND ug/L
27100 ug/L
454000 ug/L
574000 ug/l
1230 pC ilL
8.4 pC ilL
0.3 pCi/L
MDC -Minimum detectable concentration
E -Estimated value. Result exceeds the instrument upper
quantitation limit.
Report Date: 10/19/11
Collection Date: 08/24/11 11 :55
DateReceived: 08/26/11
Matrix: Aqueous
MCL!
Qualifier RL QCl Method Analysis Date I By
D
D
D
D
D
D
D
D
E
D
D
D
D
D
D
D
D
5 A2310 B 08/29/11 08:251 jba
A2320 B 08/26/11 18:16 1 jba
1 A2320 B 08/26/11 18:16 1 jba
6 E200.7 09/12/11 11 :52 I cp
A4500-CI B 08/31/11 15:031 wc
1.0 A4500-F C 08/29/11 11 :06 I jba
2 E200.7 09/12/11 11 :52 I cp
50 A4500-NH3 G 08/29/11 15:19 1 dc
20 E353.2 09/07/11 16:25 1 dc
2 E200.7 09/12/11 11 :521 cp
9 E200.7 09/12/11 11 :521 cp
1000 A4500-S04 E 09/16/11 14:30 I wc
A2510 B 08/26/11 14:56 I wc
0.01 A4500-H B 08/26/11 14:56 I wc
230 A2540 C 08/30/11 15:50/1mc
5.0 E200.8 08/29/11 15:041 sml
1.6 E200.8 08/29/11 15:041 sml
3.4 E200.8 08/29/11 15:041 sml
25 E200.8 08/29/11 15:041 sml
10 E200.8 08/29/11 15:041 sml
10 E200.8 08/29/11 15:041 sml
60 E200.7 09/12/11 11 :521 cp
1.0 E200.8 08/29/11 15:041 sml
10 E200.8 08/29/11 15:04 1 sml
1.2 E200.8 08/29/11 15:04 1 sml
10 E200.8 08/29/11 15:04 1 sml
20 E200.8 08/29/11 15:041 sml
5.0 E200.8 08/29/11 15:04 1 sml
10 E200.8 08/29/11 15:041 sml
1.2 E200.8 08/29/11 15 :04 1 sm I
100 E200.8 09/22/11 02:44 1 sml
0.39 E200.8 08/29/11 15:04 1 sml
15 E200.8 08/29/11 15:04 1 sml
44 E200.8 10/14/11 00:451 sml
E900.1 09/11/1117:39 /ep
E900.1 09/11/1117:39 /ep
E900.1 09/11/11 17:391 ep
MCL -Maximum contaminant level.
ND -Not detected at the reporting limit.
D -RL increased due to sample matrix.
Page 5 of 43
EN:RGY
LABORATORIES
www.energylab.com
Analytical ExesllsnCII Sines liSt
J, '.' ,Helena, MT8n-472-0711 • Billings, MT 800-135-4489 • Casper,WY 888-23~-0515
.,' Jiiile,~e: Vir 866-686-711~ • Rapid City, SO 888-612-1225 • College Station, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Denison Mines USA Corp
Annual Tails 2011
Lab ID: C11 081 062-002
Client Sample ID: Cell 2
Analyses
DATA QUALITY
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: 1,2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-dS
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
Result
-1.70
1430
13S0
76900
1.04
690
NO
NO
20
2.0
130
NO
13
3.0
NO
109
115
96.0
SS.O
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
Qualifier 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: 10/19/11
Collection Date: 08/24/11 11 :55
DateReceived: 08/26/11
Matrix: Aqueous
MCL!
QCL Method Analysis Date 1 By
Calculation 10103/11 07:171 kbh
Calculation 10103/11 07:171 kbh
Calculation 10103/11 07:171 kbh
Calculation 10103/11 07:171 kbh
Calculation 10103/11 07: 171 kbh
SWS260B 09/02/11 19:591 jlr
SWS260B 09/02/11 19:591 jlr
SWS260B 09/02/11 19:591 jlr
SWS260B 09/02/11 19:591 jlr
SWS260B 09/02/11 19:591 jlr
SWS260B 09/02/11 19:591 jlr
SWS260B 09/02/11 19:591 jlr
SWS260B 09/02/11 19:591 jlr
SWS260B 09/02/11 19:591 jlr
SWS260B 09/02/11 19:591 jlr
SWS260B 09/02/11 19:591 jlr
SWS260B 09/02/11 19:591 jlr
SWS260B 09/02/11 19:591 jlr
SWS260B 09/02/11 19:591 jlr
MCL -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 6 of 43
Client:
Project:
Lab Sample ID:
ORGANIC ANALYTICAL REPORT
Denison Mines
Annual Tailings 201 1
1108534-002A
Contact: Jo Ann Tischler
Client Sample ID: Cell 2
ANA LYTICAL LAOORATORIES Collection Date: 8/2412011 1155h
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-Iabs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Received Date: 8/26/2011 1000h Method: SW8260C
Analytical Results VOAs Full List by GCIMS Method 8260CIS030C
Analyzed: 8/27/2011 2017h
Units: IlglL
Dilution Factor: 10
Compound
Tetrahydrofuran
Surr: 1,2-Dichloroethane-d4
SUIT: 4-Bromofluorobenzene
SUfr: Dibromofluoromethane
Surr: Toluene-d8
The reporting limits were raised due to sample matrix intetferences.
CAS
Number
109-99-9
17060-07-0
460-00-4
1868-53-7
2037-26-5
Reporting Analytical
Limit Result Qual
10.0 < 10.0
77-144 111
80-123 104
80-124 104
80-125 101
Report Date: 9/9/2011 Page 6 of 4 7
All analyses applicable '0 the CWA, SD.WA. and RCRA arc pcrfonncd in accordance to NELAC protocols. Pertinent sampling infom1!llion is located on the attached COCo This report is proyided for the exclusive usc of the addressee. Privileges 9f
subsequent usc ofth~ name of Ihis company or any member of its stafT, or reproduction of this report in connection with the advcrti~clUcnt.·promotion or sale of any product or proces!', or jn connection with the rc'llublicalion of this report .for !.l.ny
purpose other than for the addressee will be granted only on contact. 1l1is company accepts no responsibility except for the due perfonnancc of inspection and/or analysis in good faith and according to the rules of the trode and of science.
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings 2011
1108534-002B
Client Sample ID: Cell 2
Collection Date: 812412011 1155h
Received Date: 8/26/2011 1000h
Analytical Results
Analyzed: 91712011 1801h Extracted:
Units: Iig/L
463 West 3600 South Dilution Factor: 1
Salt Lake City, UT 84115 Compound
Contact: Jo Ann Tischler
Method: SW8270D
SVOA List by GCIMS Method 8270D/351OC
8/3012011 0933h
CAS Reporting Analytical
Number Limit Result Qual -------------------------------------------------------------------
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-Iabs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
1,2,4-Trichlorobenzene
1,2-Dichlorobenzene
1,3-Dichlorobenzene
1,4-Dichlorobenzene
I-Methylnaphthalene
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-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-N i tropheno I
Acenaphthene
Acenaphthylene
Anthracene
Azobenzene
Benz( a )anthracene
Benzidine
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
92-87-5
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
10.0 < 10.0
Report Date: 9/9/2011 Page 17 of47
All analyse~ applicable to the CWA. SDWA. and RCRA arc pcrfoI1ncd in accordance to NELAC protocols. Pertinent sampling infoOllation is located on the attached COCo This t:cport is provided for the exclusive ~se of the addressee, Privileges of
subS(:qu~.nt usc afthe nalllo of this company or any member'of i,l.s staff, or reproduction oflhis report in connection-with the advertisement, promotion or sale of any produd oq)focess, or in connection with the fe-publication ofthi.$ report·for any
purpose other Ihan for the addressee will be granted only on contact. This company accepts no responsibility except for the due perfonnancc of inspection and/or analysis in good faith and according to the rules of the trade and of science.
Lab Sample ID: 1108534-002B
Client Sample ID: Cell 2
Analyzed: 91712011 1801h Extracted: 8/30/2011 0933h
Units: Ilg/L
Dilution Factor: 1 CAS Reporting Analytical
Compound Number Limit Result Qual
Benzo(a)pyrene 50-32-8 10.0 < 10.0
Benzo(b )f1uoranthene 205-99-2 10.0 < 10.0
Benzo(g,h,i)perylene 191-24-2 10.0 < 10.0
Benzo(k)f1uoranthene 207-08-9 10.0 < 10.0
463 West 3600 South Bis(2-chloroethoxy)methane 111-91-1 10.0 < 10.0
Salt Lake City, UT 84115 Bis(2-chloroethyl) ether 111-44-4 10.0 < 10.0
Bis(2-chloroisopropyl) ether 108-60-1 10.0 < 10.0
Bis(2-ethylhexyl) phthalate 117-81-7 10.0 < 10.0
Phone: [phone] Butyl benzyl phthalate 85-68-7 10.0 < 10.0
Toll Free: [phone] Chrysene 218-01-9 10.0 < 10.0
Di-n-butyl phthalate 84-74-2 10.0 < 10.0 Fax: [phone]
Di-n-octyl phthalate 117-84-0 10.0 < 10.0 e-mail: [e-mail]
Dibenz( a,h )anthracene 53-70-3 10.0 < 10.0
web: www.awal-labs.com Diethyl phthalate 84-66-2 10.0 < 10.0
Dimethyl phthalate 131-11 -3 10.0 < 10.0
Fluoranthene 206-44-0 10.0 < 10.0
Kyle F. Gross Fluorene 86-73-7 10.0 < 10.0
Laboratory Director Hexachlorobenzene 118-74-1 10.0 < 10.0
Hexachlorobutadiene 87-68-3 10.0 < 10.0
Jose Rocha Hexachlorocyclopentadiene 77-47-4 10.0 < 10.0
QA Officer Hexachloroethane 67-72-1 10.0 < 10.0
Indeno( 1 ,2,3-cd)pyrene 193-39-5 10.0 < 10.0
Isophorone 78-59-1 10.0 < 10.0
N-Nitrosodimethylamine 62-75-9 10.0 < 10.0
N -Nitrosodiphenylamine 86-30-6 10.0 < 10.0
N -Nitrosodi -n-propylamine 621-64-7 10.0 < 10.0
Naphthalene 91-20-3 10.0 < 10.0
Nitrobenzene 98-95-3 10.0 < 10.0
Pentachlorophenol 87-86-5 10.0 < 10.0
Phenanthrene 85-01-8 10.0 < 10.0
Phenol 108-95-2 10.0 < 10.0
Pyrene 129-00-0 10.0 < 10.0
Pyridine 110-86-1 10.0 < 10.0
Surr: 2,4,6-Tribromophenol 118-79-6 14-159 89.4
SUIT: 2-Fluorobiphenyl 321-60-8 10-124 26.8
SUIT: 2-Fluorophenol 367-12-4 10-106 32.6
SUIT: Nitrobenzene-d5 4165-60-0 10-180 1.30 s
Report Date: 9/9/2011 Page 18 of 4 7
All analyses applicable 10 Ihe CWA, SDWA. and RCRA are perfonncd in accordance to NELAc; pr9tocols. Pertinent sampling infomlation is locatcd_o~ the attached COc. This report is provided for the cxcl.usive usc of the addressee. Privileges of
subsequent usc of Ihe name of this cOT!1pany or any member of its slaff, or reproduction ofthi~ report-in connection with the advertisement. prontoliQn or sale of any product or process, or in connection wi.t.h the Te-publication of this report for any
purpose other than for the addressee will be grantcd only on contact. This company accepts no responsibility except for the due pcrfonnancc of inspcction and/or analysis in good faith and according to the rules of the trade and of science.
Lab Sample ID: 1108534-002B
Client Sample ID: Ce112
Analyzed: 91712011 1801h Extracted: 8/30/2011 0933h
Units: ).lg/L
Dilution Factor: 1
American West Compound
CAS
Number
Reporting
Limit
Analytical
Result Qual ANALVTIC Al I.AOORATORIES ______________________________________________________________________________________________________ __
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Surr: Pheno1-d6
SUIT: Terphenyl-dl4
13127-88-3
1718-51-0
10-122
10-199
40.0
95.7
S -Surrogate recoveries outside the control limits. Repreparation and reanalysis of sample yielded similar results indicating matrix
interference.
This sample was analyzedfor the TIC compound 4-Chlorophenol and was not detected.
Report Date: 9/9/2011 Page 19 of 4 7
All analyses aRplicablc to the CWA, SDWA, and RCRA are perfomle.d in accordance to NELAC protocols. Pertinent samplil1g infonnation is located on Ihe attached COCo This rcpprt is provided for the exclusive usc oflhe addressee. Privileges of
suhseqtlcntJJse of the namo of this company or any member of its ~Jaff. or reproduction of this report in connection with th_c advertisement, promotion or sale of any product or pr!)ccss, or in connection with Ihe re-publication oftms t¥.porl 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 faith and according to the rules of the trade and of science.
EI\ERGY
LABORATORIES
www.energylab.com
Ana/ytfca/ ExcsllsnCl Slnc./952
Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515
~lIIette! WY 866-686-7175 • Rapid City, SO 888-&72-1225 • College Station, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: Annual Tails 2011
Lab ID: C 11081062-003
Client Sample ID: Cell 3
Analyses Result Units
MAJOR IONS
Acidity, Total as CaC03 91900 mg/L
Carbonate as C03 ND mg/L
Bicarbonate as HC03 ND mg/L
Calcium 200 mg/L
Chloride 40400 mg/L
Fluoride 64.1 mg/L
Magnesium 22100 mg/L
Nitrogen, Ammonia as N 6470 mg/L
Nitrogen, Nitrate+Nitrite as N 261 mg/L
Potassium 2590 mg/L
Sodium 47900 mg/L
Sulfate 197000 mg/L
-Acidity reported for informational purposes due to a sample pH of less than 4.
PHYSICAL PROPERTIES
Conductivity @ 25 C
pH
Solids, Total Dissolved TDS @ 180 C
METALS -DISSOLVED
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Iron
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Tin
Uranium
Vanadium
Zinc
RADIONUCLIDES -DISSOLVED
Gross Alpha minus Rn & U
Gross Alpha minus Rn & U Precision (±)
Gross Alpha minus Rn & U MDC
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
86400 umhoslcm
1.27 S.u.
296000 mg/L
263000 ug/L
1570 ug/L
12200 ug/L
22800 ug/L
76000 ug/L
768000 ug/L
1.02E+07 ug/L
16700 ug/L
587000 ug/L
30.9 ug/L
96200 ug/L
75800 ug/L
6900 ug/L
792 ug/L
518 ug/L
325 ug/L
458000 ug/L
2370000 ug/L
726000 ug/L
11100 pCi/L
29.1 pCi/L
0.4 pCi/L
MDC -Minimum detectable concentration
E -Estimated value. Result exceeds the instrument upper
quantitation limit.
Report Date: 10/19/11
Collection Date: 08/24/11 08:30
DateReceived: 08/26/11
Matrix: Aqueous
MCL!
Qualifier RL QCL Method Analysis Date 1 By
D
D
D
D
D
D
D
D
E
D
D
D
D
D
D
D
D
D
D
5 A2310 B 08/29/11 08:281 jba
A2320 B 08/26/11 18:201 jba
A2320 B 08/26/11 18:20 1 jba
20 E200.7 09/23/11 10:061 cp
1 A4500-CI B 08/31/11 15:121 wc
1.0 A4500-F C 08/29/11 11 :09 1 jba
10 E200.7 09/23/11 10:06 1 cp
100 A4500-NH3 G 08/29/11 15:431 dc
20 E353.2 09/07/11 16:27 1 dc
9 E200.7 09/23/11 10:061 cp
40 E200.7 09/23/11 10:06 1 cp
2000 A4500-S04 E 09/16/11 14:361 wc
A2510 B 08/26/11 14:59 1 wc
0.01 A4500-H B 08/26/11 14:59 1 wc
410 A2540 C 08/30/11 15:5111mc
5.0 E200.8 08/29/11 15:081 sml
51 E200.8 10/18/11 10:09 1 sml
3.4 E200.8 08/29/11 15 :08 1 sml
25 E200.8 08/29/11 15 :08 1 sm I
10 E200.8 08/29/11 15:081 sml
13 E200.8 10/10/11 13:23 1 sml
9000 E200.7 09/12/11 12:001 cp
1.0 E200.8 08/29/11 15:08 1 sml
10 E200.8 08/29/11 15:08 1 sml
1.2 E200.8 08/29/11 15:08 1 sml
10 E200.8 08/29/11 15:08 1 sml
20 E200.8 08/29/11 15:08 1 sml
26 E200.8 08/29/11 15:081 sml
10 E200.8 08/29/11 15:081 sml
1.2 E200.8 08/29/11 15 :08 1 sml
100 E200.8 09/22/11 02:47 1 sml
0.39 E200.8 08/29/11 15:08 1 sml
16 E200.8 10/10/1113:23/sml
30 E200.8 10/18/11 10:091 sml
E900.1 09/09/11 16:51 1 ep
E900.1 09/09/11 16:51 1 ep
E900.1 09/09/11 16:511 ep
MCL -Maximum contaminant level.
ND -Not detected at the reporting limit.
D -RL increased due to sample matrix.
Page 7 of43
EI\ERGY
LABORATORIES
www.energylab.com
Analytical !xcBI/BnCB SlncB 1952
Helena, MT 877-472-0711 • Billings, MT 800-135-4489 • Casper, WY 888-235-0515
" Gijle~e; WY ,86&-6.86-7175 • Rapid City, SO 888-612-1225 • College Station, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: Annual Tails 2011
Lab ID: C11 081 062-003
Client Sample ID: Cell 3
Analyses Result Units
DATA QUALITY
AlC Balance (± 5) B.6B %
Anions 5270 meq/L
Cations 62BO meq/L
Solids, Total Dissolved Calculated 312000 mg/L
TDS Balance (O.BO -1.20) 0.950
VOLATILE ORGANIC COMPOUNDS
Acetone 330 ug/L
Benzene NO ug/L
Carbon tetrachloride NO ug/L
Chloroform 31 ug/L
Chloromethane 3.5 ug/L
Methyl ethyl ketone 67 ug/L
Methylene chloride 7.4 ug/L
Naphthalene 1.2 ug/L
Toluene NO ug/L
Xylenes, Total NO ug/L
Surr: 1,2-Dichlorobenzene-d4 121 %REC
Surr: Dibromofluoromethane 159 %REC
Surr: p-Bromofluorobenzene 94.0 %REC
Surr: Toluene-dB BB.O %REC
-This analysis has been confirmed through the analysis of an alternate sample vial.
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
S -Spike recovery outside of advisory limits.
Report Date: 10/19/11
Collection Date: 08/24/11 08:30
DateReceived: 08/26/11
Matrix: Aqueous
MCL!
Qualifier RL QCL Method Analysis Date 1 By
Calculation 10103/11 12.:05 1 kbh
Calculation 10103/11 12:05 1 kbh
Calculation 10103/1 1 12:05 1 kbh
Calculation 10103/11 12:05 1 kbh
Calculation 10103/11 12:05 1 kbh
20 SWB260B 09/02/11 20:36 1 ilr
1.0 SWB260B 09/02/11 20:36 1 ilr
1.0 SWB260B 09/02/11 20:36 1 ilr
1.0 SWB260B 09/02/11 20:36 1 ilr
1.0 SWB260B 09/02/11 20 :36 1 ilr
20 SWB260B 09/02/11 20 :36 1 ilr
1.0 SWB260B 09/02/1 1 20:36 1 ilr
1.0 SWB260B 09/02/11 20:36 1 ilr
1.0 SWB260B 09/02/11 20:361 ilr
1.0 SWB260B 09/02/11 20:36 1 ilr
S BO-120 SWB260B 09/02/11 20:36 1 ilr
S 70-130 SWB260B 09/02/11 20:36 1 ilr
BO-120 SWB260B 09/02/11 20:36 1 ilr
BO-120 SWB260B 09/02/11 20:36 1 ilr
MCL -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 8 of43
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings 2011
1108534-003A
Client Sample ID: Cell 3
Collection Date: 8/2412011 0830h
Received Date: 812612011 1000h
Contact: Jo Ann Tischler
Method: SW8260C
Analytical Results VOAs Full List by GC/MS Method 8260C/5030C
Analyzed: 8127/2011 2114h
Units: IJ.g/L
Dilution Factor: 10
Compound
Tetrahydrofuran
Surr: 1,2-Dichloroethane-d4
Surr: 4-Bromofluorobenzene
Surr: Dibromofluoromethane
Surr: Toluene-d8
The reporting limits were raised due to sample matrL~ interferences.
CAS
Number
109-99-9
17060-07-0
460-00-4
1868-53-7
2037-26-5
Reporting Analytical
Limit Result Qual
10.0 < 10.0
77-144 113
80-123 109
80-124 105
80-125 102
Report Date: 9/912011 Page 7 of 47
All analyses applicable to the CWA, SDWA, and RCRA are pcrfonncd in accordance to NELAC protocols. pertinent sampling infonl1ation is located on the attacbc,d COCo ntis report is provided for Ihe exclusive usc of.thc addressee. Privileges of
subsequent use of the name of this company or any member of its slofT. or reproduction of this report-in cpnncclion with the advertisement, promotion or sale of !lilY product or process, or in connection with the re:-pul?Jication-ofthis report for any
purpose other than for the addressee will be granted only on contact. 1l1is company accepts no responsibility except for the due pcrfonnance of inspection and/or analysis in good faith and according to the rules of the trade and of science.
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample 10:
Denison Mines
Annual Tailings 2011
1108534-003B
American West Client Sample 10: Cell 3
ANALYTICAL LA BORAT ORIES Collection Date: 8/24/2011 0830h
Received Date: 8/26/2011 1000h
Analytical Results
Analyzed: 91712011 1854h
Units: ~g/L
463 West 3600 South Dilution Factor: 1
Salt Lake City, UT 84115 Compound
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-Iabs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
1,2,4-Trichlorobenzene
1,2-Dichlorobenzene
1,3-Dichlorobenzene
1,4-Dichlorobenzene
1-Methylnaphthalene
2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
2,4-Dichloropheno I
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
/ Benzidine
Extracted:
Contact: Jo Ann Tischler
Method: SW8270D
SVOA List by GC/MS Method 8270D/351OC
8/30/2011 0933h
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
92-87-5 10.0 < 10.0
Report Date: 9/9/2011 Page 20 of 47
All analyses applicable to the CWA, SDWA. and ReRA arc performed in accordance to NELAC.Pfotocols. P<;rlinent sampling infomlalion is located on_l~e attached CDC. This report is provided for the exclus~vc usc of the addressee. Privileges of
subsequent usc of the name of this cOIl1p'i,lny or any member of its staff. or reproduction of this ~porl in-connection with the advertisement, promotion 9.f sale of any product or process, or in connection ,vilh !he re-publication of this report for any
purpose other than for the addressee will be granted only on contact. lllis company accepts no responsibility except for the due performance of inspection and/or analysis in good faith and according to the rules of the trade and of science.
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Lab Sample ID: 1108534-003B
Client Sample ID: Cell 3
Analyzed: 91712011 1854h Extracted:
Units: )lg/L
Dilution Factor: 1
Compound
Benzo( a )pyrene
Benzo(b )f1uoranthene
Benzo(g,h,i)perylene
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
Hexachlorocyclopentadiene
Hexachloroethane
Indeno( 1 ,2,3 -cd)pyrene
Isophorone
N-Nitrosodimethylamine
N -Nitrosodiphenylamine
N -N itrosodi-n-propyl amine
Naphthalene
Nitrobenzene
Pentachlorophenol
Phenanthrene
Phenol
Pyrene
Pyridine
SUIT: 2,4,6-Tribromophenol
SUIT: 2-Fluorobiphenyl
SUIT: 2-Fluorophenol
SUIT: Nitrobenzene-d5
8/30/2011 0933h
CAS Reporting Analytical
Number Limit Result Qual
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
87-86-5 10.0 < 10.0
85-01-8 10.0 < 10.0
108-95-2 10.0 < 10.0
129-00-0 10.0 < 10.0
110-86-1 10.0 < 10.0
118-79-6 14-159 68.4
321-60-8 10-124 25.5
367-12-4 10-106 35.8
4165-60-0 10-180 18.8
Report Date: 9/9/20 II Page 21 of47
All analyses appl~cable to the CWA, SDWA, and RCRA arc pcrfonned ill accordance to NELAC protocols. Pcrtinc:nt sampling i.nfomlation is located on the attached COCo This report.is provided for the exclusive usc orthe addressee._ Priv~lcgcs of
subsequent US~ of the name of this company or any member of its'staff, or reproduction of Ihis report in connection with the ~.dvcrlisclUcnt, promotion or sale of any product or proc~ss. or in connection with the fe-publication of this fCPQrt 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 trade and of science.
Lab Sample ID: 1108534-003B
Client Sample ID: Cell 3
Analyzed: 91712011 1854h
Units: Ilg/L
Dilution Factor: 1
American West Compound
Extracted: 8/30/2011 0933h
CAS Reporting Analytical
Number Limit Result Qual
A NAt. YTICA l LABOR Al OR I E S ___________________________________________________ _
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Surr: Phenol-d6
Surr: Terphenyl-d14
13127-88-3
1718-51-0
This sample was analyzed/or the TIC compound 4-Chlorophenol and was not detected.
10-122 53.5
10-199 73.8
Report Date: 919/2011 Page 22 of 47
All analyses applicable to the CWA, SOW A, a.nd ReRA are pcrfonncd in accordance to NELAC prot~cols. Pertinent sampling infonnation is located on Ihe flttachcd COCo This report is provided for the exclusiv.c. use oflhe addressee. Privileges of
subsequent usc of the nallle of this company or any-member of its slaff, or reproduction ofthis'repQrl in connection with the advertisement, promotion'or ~!llc of any product or process, or in connection witlr thc . .rc-publication of this report for any
purposc 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 trade and of sciencc.
EN:RGY
LABORATORIES
www.energylab.com
Ana/ylfca/ Excs//sne, Sincs 1952
Helena, MT877-472-1i711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515
:Glljette, WY866-QB6-7175 • Rapid City, SIl 888-672-1225 • College Station, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: Annual Tails 2011
Lab 10: C11 081 062-004
Client Sample 10: Cell4A
Analyses Result Units
MAJOR IONS
Acidity, Total as CaC03 35400 mg/L
Carbonate as C03 NO mg/L
Bicarbonate as HC03 NO mg/L
Calcium 558 mg/L
Chloride 5870 mg/L
Fluoride 30.6 mg/L
Magnesium 4720 mg/L
Nitrogen, Ammonia as N 4930 mg/L
Nitrogen, Nitrate+Nitrite as N 44 mg/L
Potassium 1450 mg/L
Sodium 11400 mg/L
Sulfate 267000 mg/L
-Acidity reported for informational purposes due to a sample pH of less than 4.
PHYSICAL PROPERTIES
Conductivity @ 25 C
pH
Solids, Total Dissolved TDS @ 180 C
METALS -DISSOLVED
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Iron
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Tin
Uranium
Vanadium
Zinc
RADIONUCLIDES -DISSOLVED
Gross Alpha minus Rn & U
Gross Alpha minus Rn & U Precision (±)
Gross Alpha minus Rn & U MDC
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
82100 umhos/cm
1.73 s.u.
108000 mg/L
86600 ug/L
323 ug/L
2190 ug/L
5900 ug/L
22500 ug/L
181000 ug/L
3390000 ug/L
11000 ug/L
131000 ug/L
15.2 ug/L
24200 ug/L
43500 ug/L
4460 ug/L
216 ug/L
410 ug/L
319 ug/L
153000 ug/L
730000 ug/L
286000 ug/L
8290 pCi/L
25.2 pCi/L
0.4 pCilL
MDC -Minimum detectable concentration
E -Estimated value. Result exceeds the instrument upper
quantitation limit.
Report Date: 10/19/11
Collection Date: 08/24/11 14:00
DateReceived: 08/26/11
Matrix: Aqueous
MCL!
Qualifier RL QCL Method Analysis Date 1 By
0
0
0
0
0
0
0
0
E
0
0
0
0
0
0
0
0
5 A2310 B 08/29/11 08:331 jba
A2320 B 08/26/11 18 :23 1 jba
A2320 B 08/26/11 18 :23 1 jba
10 E200.7 09/12/11 12:04 1 cp
1 A4500-CI B 08/31/1115:18/wc
1.0 A4500-F C 08/29/11 11 :14 1 jba
5 E200.7 09/12/11 12:041 cp
100 A4500-NH3 G 08/29/11 15:45 1 dc
20 E353.2 09/07/11 16:30 1 dc
5 E200.7 09/12/11 12:04 1 cp
20 E200.7 09/12/11 12:04 1 cp
5000 A4500-S04 E 09/16/11 14:44 1 wc
A2510 B 08/26/11 15:031 wc
0.01 A4500-H B 08/26/11 15:03 1 wc
380 A2540 C 08/30/11 15:51 I lmc
5.0 E200.8 08/29/11 15:32 1 sml
5.1 E200.8 09/22/11 12:451 sml
3.4 E200.8 08/29/11 15:32 1 sml
25 E200.8 08/29/11 15:32 1 sml
10 E200.8 08/29/11 15 :32 1 sm I
13 E200.8 10/10/1113:29 /sml
100 E200.7 09/12/11 12:04 1 cp
1.0 E200.8 08/29/11 15:32 1 sml
10 E200.8 08/29/11 15:32 1 sml
1.2 E200.8 08/29/11 15:321 sml
10 E200.8 08/29/11 15 :32 1 sm I
20 E200.8 08/29/11 15:32 1 sml
5.0 E200.8 08/29/11 15:32/ sml
10 E200.8 08/29/11 15:32 1 sml
1.2 E200.8 08/29/11 15:32 1 sml
100 E200.8 09/22/11 02:491 sml
0.39 E200.8 08/29/11 15:32 1 sml
15 E200.8 08/29/11 15:32 1 sml
44 E200.8 10/14/11 00:541 sml
E900.1 09/09/11 16:51 1 ep
E900.1 09/09/11 16:51 1 ep
E900.1 09/09/11 16:51 1 ep
MCL -Maximum contaminant level.
NO -Not detected at the reporting limit.
o -RL increased due to sample matrix.
Page 9 of 43
EN:RGY
LABORATORIES rZ f www.energylab.cDm
Analytical Excsllsncs Sincs ,g52
~elena, Mt 877-472-D711 • Billings, MT 80D-735-4489 • Casper, WY 888-235-0515
:GIII~tte;WY 866-686-7175 • Rapid City, SD888-672-1225 • College StatiDn, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Denison Mines USA Corp
Annual Tails 2011
Lab ID: C 11081062-004
Client Sample ID: Cell 4A
Analyses
DATA QUALITY
AlC Balance (± 5)
Anions
Cations
Solids, Total Dissolved Calculated
TOS Balance (O.BO -1.20)
VOLATILE ORGANIC COMPOUNDS
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
Methyl ethyl ketone
Methylene chloride
Naphthalene
Toluene
Xylenes, Total
Surr: 1,2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-dB
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality contro l limit.
Result
-4B.1
5730
2010
292000
0.370
100
NO
NO
10
7.9
NO
NO
NO
NO
NO
104
10B
B6.0
90.0
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
Qualifier Rl
20
1.0
1.0
1.0
1.0
20
1.0
1.0
1.0
1.0
BO-1 20
70-130
BO-120
BO-120
Report Date: 10/19/11
Collection Date: 08/24/11 14:00
DateReceived: 08/26/11
Matrix: Aqueous
MCll
QCl Method Analysis Date 1 By
Calculation 10/19/11 15:50 1 sdw
Calculation 10/19/11 15:50 1 sdw
Calculation 10/19/1 1 15:50 1 sdw
Calculation 10/19/11 15:50 1 sdw
Calculation 10/19/11 15:501 sdw
SWB260B 09/06/11 16:041 jlr
SWB260B 09/06/11 16:041 jlr
SWB260B 09/06/11 16:04 1 jlr
SWB260B 09/06/11 16:041 jlr
SWB260B 09/06/11 16:04 1 jlr
SWB260B 09/06/11 16 :04 1 jlr
SWB260B 09/06/11 16 :04 1 jlr
SWB260B 09/06/11 16:04 1 jlr
SWB260B 09/06/11 16:04 1 jlr
SWB260B 09/06/11 16 :04 1 jlr
SWB260B 09/06/11 16:04 1 jlr
SWB260B 09/06/11 16 :04 1 jlr
SWB260B 09/06/11 16:04 1 jlr
SWB260B 09/06/11 16:04 1 jlr
MCL -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 10 of 43
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail : [e-mail]
web: www.awal-Iabs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings 2011
1108534-004A
Client Sample ID: Cell4A
Collection Date: 8/24/2011 1400h
Received Date: 8/26/2011 1000h
Contact: Jo Ann Tischler
Method: SW8260C
Analytical Results VOAs Full List by GCIMS Method 8260C/S030C
Analyzed: 8/2712011 2133h
Units: Ilg/L
Dilution Factor: 10
Compound
Tetrahydrofuran
Surr: 1,2-Dichloroethane-d4
Surr: 4-Bromofluorobenzene
SUIT: Dibromofluoromethane
Surr: Toluene-d8
The reporting limits were raised due to sample mal1'L~ interferences.
CAS
Number
109-99-9
17060-07-0
460-00-4
1868-53-7
2037-26-5
Reporting Analytical
Limit Result Qual
10.0 < 10.0
77-144 111
80-123 105
80-124 104
80-125 101
Report Date: 9/9/2011 Page 8 of 47
All analyses applicable to t.he CWA, SDWA, and ReRA arc perfonncd in accordance to NELAC protocols. Perlinent sampling infom18tiQl1 is located on the attached cqC. This report is provid9d for the exclusive use orthe addressee. Privileges of .
subsequcnluse of the n~Il1C of this company or any member of its staff, or reprQduction of this report in connection with the advertisement, promotion or sale of any product or process, or in .c;:onnection with the rc.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 and/or analysis in good faith and according to the rules of the trade and of science.
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings 2011
1108534-004B
American West Client Sample ID: Cell4A
ANALYTICAL LABORATORIES Collection Date: 8/2412011 1400h
Received Date: 8/26/2011 1000h
Analytical Results
Analyzed: 91712011 1947h Extracted:
Units: )lg/L
463 West 3600 South Dilution Factor: 1
Salt Lake City, UT 84115 Compound
Contact: Jo Ann Tischler
Method: SW8270D
SVOA List by GC/MS Method 8270D/3510C
8/3012011 0933h
CAS Reporting Analytical
Number Limit Result Qual -------------------------------------------------------------------
1,2,4-Trichlorobenzene
1,2-Dichlorobenzene
Phone: [phone],3-Dichlorobenzene
Toll Free: [phone] 1,4-Dichlorobenzene
Fax: [phone]-Methy1naphthalene
e-mail: [e-mail] 2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
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
Benzidine
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
92-87-5
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
10.0 < 10.0
Report Date: 9/9/2011 Page 23 of 47
All an~lyses applicaplc 10 the CWA. SDWA, and RCRA are perfomlcd in.a~cordancc to NELAC protocols. Pertinent samplif.lg inf<.>nnalion is located on the attached COCo This report is provided for the exclusive USc orlhe addressee. Privileges of
subsequent usc of the name of this company or any member of its staff, o.r reproduction of this report in connection with thc1ldv.crlisclllcnt, 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 thc due perfonnance of inspection and/or analysis in good faith and according to the rules oflhc trade and of scicncc.
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Lab Sample ID: 1108534-004B
Client Sample ID: Ce1l4A
Analyzed: 91712011 1947h Extracted:
Units: Ilg/L
Dilution Factor: 1
Compound
Benzo( a )pyrene
Benzo(b )f1uoranthene
Benzo(g,h,i)perylene
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
Hexachlorocyclopentadiene
Hexachloroethane
Indeno( 1 ,2,3-cd)pyrene
Isophorone
N-Nitrosodimethylamine
N-Nitrosodiphenylamine
N -Nitrosodi-n-propylamine
Naphthalene
Nitrobenzene
Pentachlorophenol
Phenanthrene
Phenol
Pyrene
Pyridine
Surr: 2,4,6-Tribromophenol
Surr: 2-Fluorobiphenyl
SUIT: 2-Fluorophenol
SUIT: Nitrobenzene-d5
8/30/2011 0933h
CAS Reporting Analytical
Number Limit Result Qual
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
87-86-5 10.0 < 10.0
85-01-8 10.0 < 10.0
108-95-2 10.0 < 10.0
129-00-0 10.0 < 10.0
110-86-1 10.0 < 10.0
118-79-6 14-159 71.7
321-60-8 10-124 19.1
367-12-4 10-106 22.4
4165-60-0 10-180 15.8
Report Date: 919/2011 Page 24 of47
All analyses applicable to the CW A. SDWA, and,RCRA are perfomlcd in accordance to NELAC protocQJs. Pertinent sampling information is located on the att~chcd COCo This report is provided for the exclusive US~ of the addressee. Privileges of
subsequent use oflhe name of this company or any member of its staff, Of reproduction of this report.in connection with the advertisement, promotion or"Sal~.ofany product or process, or in connection with the rc~publicalion 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 pcrfonnance of inspection and/or analysis in good faith and according to the rules of the trade and of science.
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-Iabs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Lab Sample ID: 1108534-004B
Client Sample ID: Ce1l4A
Analyzed: 91712011 1947h
Units: Ilg/L
Dilution Factor: 1
Compound
SUIT: Phenol-d6
SUIT: Terphenyl-dl4
Extracted: 8130/2011 0933h
CAS
Number
13127-88-3
1718-51-0
This sample was analyzed for the TIC compound 4-Chlorophenol and was not detected.
Reporting Analytical
Limit Result Qual
10-122 34.7
10-199 80.2
Report Date: 919/2011 Page 25 of47
All analyses apP.licablc. to the CW A, SDWA, and RCRA arc pcrfonncd in accQrdance to NELAC protocols. Pertinent sampling infant.lation is located on the attached CDC. This report is PTt?vidcd for the exclusive usc of the addressee. Privileges,of
subsequent usc Ofll).c namc'ofthis company or any member of its stafTror ~pproduction of this report in connection with Ihe advert,.semen", promotion or sale of any product or process, or. in connection with the fe-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 duc performance of inspection and/or analysis in good faith and flccording to the rules of the trade and of sciencc.
EN:RGY
LAB ORATORIES
www.energylab.com
Analytica/ Exes//snes Sines 1652
Helena, MT 877-472-D711 • Billings, MT 80D-135-4489 . Casper, WY 888-23~-0515
Pill~tte, WY866-686-7115 • Rapid City, SD 888-612-1225 . ColiegeStalion, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: Annual Tails 2011
Lab ID: C11 081 062-005
Client Sample ID: Cell4A LDS
Analyses Result Units
MAJOR IONS
Acidity, Total as CaC03 26500 mg/L
Carbonate as C03 NO mg/L
Bicarbonate as HC03 NO mg/L
Calcium 470 mg/L
Chloride 6040 mg/L
Fluoride 46.0 mg/L
Magnesium 5100 mg/L
Nitrogen, Ammonia as N 3480 mg/L
Nitrogen, Nitrate+Nitrite as N 94 mg/L
Potassium 1500 mg/L
Sodium 11000 mg/L
Sulfate 77400 mg/L
- Acidity reported for informational purposes due to a sample pH of less than 4.
PHYSICAL PROPERTIES
Conductivity @ 25 C
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 (±)
Gross Alpha minus Rn & U MOC
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
66600 umhoslcm
2.32 S.u.
93800 mg/L
74700 ug/L
367 ug/L
3160 ug/L
5940 ug/L
21700 ug/L
150000 ug/L
2530000 ug/L
4520 ug/L
207000 ug/L
14.7 ug/L
29300 ug/L
29600 ug/L
3780 ug/L
127 ug/L
290 ug/L
119 ug/L
168000 ug/L
770000 ug/L
204000 ug/L
7440 pC il L
23.8 pCi/L
0.4 pCi/L
MOC -Minimum detectable concentration
E -Estimated value. Result exceeds the instrument upper
quantitation limit.
Report Date: 10/19/11
Collection Date: 08/24/11 14:15
DateReceived: 08/26/11
Matrix: Aqueous
MCL!
Qualifier RL QCL Method Analysis Date 1 By
0
0
0
0
0
0
0
0
E
0
0
0
0
0
0
0
5 A2310 B 08/29/11 08:371 jba
A2320 B 08/26/11 18 :26 1 jba
1 A2320 B 08/26/11 18 :26 1 jba
10 E200.7 09/12/11 12:09 1 cp
1 A4500-CI B 08/31/11 15:291 wc
1.0 A4500-F C 08/29/11 11 :20 I jba
5 E200.7 09/12/11 12:09 1 cp
50 A4500-NH3 G 08/29/11 15:251 dc
20 E353.2 09/07/11 16:32 1 dc
5 E200.7 09/12/11 12:09 1 cp
20 E200.7 09/12/11 12:091 cp
1000 A4500-S04 E 09/16/1114:54 /wc
A2510 B 08/26/11 15 :05 1 wc
0.01 A4500-H B 08/26/11 15 :05 I wc
230 A2540 C 08/30/11 15:51 I lmc
5.0 E200.8 08/29/11 15:50 I sml
5.1 E200.8 09/22/11 12:471 sml
3.4 E200.8 08/29/11 15:50 I sml
25 E200.8 08/29/11 15:50 I sml
10 E200.8 08/29/11 15:50 I sml
10 E200.8 08/29/11 15:50 I sml
100 E200.7 09/12/11 12:09 I cp
1.0 E200.8 08/29/11 15:50 I sml
10 E200.8 08/29/11 15:50 I sml
1.2 E200.8 08/29/11 15:501 sml
10 E200.8 08/29/11 15 :50 I sml
20 E200.8 08/29/11 15:50 I sml
5.0 E200.8 08/29/11 15:50 I sml
10 E200.8 08/29/11 15:50 I sml
1.2 E200.8 08/29/11 15:50 I sml
100 E200.8 09/22/11 02 :521 sml
0.39 E200.8 08/29/11 15:50 I sml
15 E200.8 08/29/11 15:50 I sml
10 E200.8 08/29/11 15:50 I sml
E900.1 09/09/11 16:511 ep
E900.1 09/09/11 16:51 1 ep
E900.1 09/09/11 16:51 1 ep
MCL -Maximum contaminant level.
NO -Not detected at the reporting limit.
o -RL increased due to sample matrix.
Page 11 of 43
EN:RGY
LABORATORIES
www.energylab.com
Analytical ExcsllsnCB Sincs 1952
Helena, MT 877-472-0711 • Billings, MT 800-735-4489 . Casper, Wi 888-235-0515
,.§!I!~~~,"'/!Y 86&-686-7175 • Rapid City, SO 888-672-1225 . College Station, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Denison Mines USA Corp
Annual Tails 2011
Lab ID: C 11081062-005
Client Sample ID: Cell 4A LOS
Analyses
DATA QUALITY
AlC Balance (± 5)
Anions
Cations
Solids, Total Dissolved Calculated
TDS Balance (0.80 -1.20)
VOLATILE ORGANIC COMPOUNDS
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
Methyl ethyl ketone
Methylene chloride
Naphthalene
Toluene
Xylenes, Total
Surr: l ,2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
Result
-1.46
1790
1740
102000
0.920
120
NO
NO
26
3.8
82
NO
NO
NO
NO
101
106
82.0
90.0
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
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: 10/19/11
Collection Date: 08/24/11 14:15
DateReceived: 08/26/11
Matrix: Aqueous
MCL!
QCL Method Analysis Date 1 By
Calculation 10103/11 07:171 kbh
Calculation 10103/11 07:171 kbh
Calculation 10103/11 07: 17 1 kbh
Calculation 10103/11 07: 17 1 kbh
Calculation 10103/11 07:171 kbh
SW8260B 09/03/1 1 02 :03 1 ilr
SW8260B 09/03/11 02:03 1 ilr
SW8260B 09/03/11 02:031 ilr
SW8260B 09/03/11 02:03 1 ilr
SW8260B 09/03/11 02 :03 1 ilr
SW8260B 09/03/11 02 :03 1 ilr
SW8260B 09/03/11 02:03 1 ilr
SW8260B 09/03/11 02:03 1 ilr
SW8260B 09/03/11 02:031 ilr
SW8260B 09/03/11 02:03 1 ilr
SW8260B 09/03/11 02:031 ilr
SW8260B 09/03/11 02 :03 1 ilr
SW8260B 09/03/1 1 02 :03 1 ilr
SW8260B 09/03/11 02:03 1 ilr
MCL -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 12 of 43
ORGANIC ANALYTICAL REPORT
Client: Denison Mines
Project: Annual Tailings 2011
Lab Sample ID: 1108534-005A
Client Sample ID: Ce1l4a LDS
Collection Date: 8/24/2011 1415h
Received Date: 8/26/2011 1000h
Contact: Jo Ann Tischler
Method: SW8260C
Analytical Results VOAs Full List by GC/MS Method 8260C/S030C
Analyzed: 8/2712011 2152h
Units: /ig/L
463 West 3600 South Dilution Factor: 10
Salt Lake City, UT 84115 Compound
Phone: [phone]
Toll Free: [phone]
Fax: (80l) 263-8687
e-mail: [e-mail]
web: www.awal-Iabs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Tetrahydrofuran
Surr: 1,2-Dichloroethane-d4
SUIT: 4-Bromofluorobenzene
SUIT: Dibromofluoromethane
SUIT: Toluene-d8
The reporting limits were raised due to sample matrix interferences.
CAS Reporting Analytical
Number Limit Result Qual
109-99-9 10.0 102
17060-07-0 77-144 112
460-00-4 80-123 106
1868-53-7 80-124 105
2037-26-5 80-125 100
Report Date: 9/912011 Page 9 of 47
All analyses applicable to the CWA, SDWA. and RCRA arc pcrfonlled in accordance to NELAC protocols. PC~lincnt sampling infommtion is located on the attached <;::OC. This report is provided for the exclusive usc ofth~ addressee. Privileges of
. subsequent usc of the name of this company or any member of its staff, or reproduction of this report in congection with the advertisement, promotion or sale of any: product or process, or in connection with the re'publiC:;ltion of this report for any
purpose other than for the addressee will be granted only on contact. lltis company accepts no responsibility except for Ihe due performance of inspection and/or analysis in good faith and according to the rules oflhe trade and of sciencc.
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings 2011
1108534-0058
American West Client Sample ID: Cell4a LDS
A N AI.YTICA L LABORATOR IES Collection Date: 8/24/2011 1415h
Received Date: 8/26/2011 1000h
Analytical Results
Analyzed: 91712011 2039h Extracted:
Units: IlglL
463 West 3600 South Dilution Factor: 1
Salt Lake City, UT 84115 Compound
Contact: Jo Ann Tischler
Method: SW8270D
SVOA List by GC/MS Method 8270D/3510C
8/30/2011 0933h
CAS Reporting Analytical
Number Limit Result Qual -----------------------------------------------------------
1,2,4-Trichlorobenzene
1,2-Dichlorobenzene
Phone: [phone],3-Dichlorobenzene
Toll Free: [phone] 1,4-Dichlorobenzene
Fax: [phone]-Methylnaphthalene
e-mail: [e-mail] 2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
2,4-Dichloropheno I
2,4-Dimethylphenol
2,4-Dinitrophenol
2,4-Dini trotoluene
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
Benzidine
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
92-87-5
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
10.0 < 10.0
Report Date: 9/9/2011 Page 26 of47
All analyses applicnb'c to the CWA, SOW A, rmd RC;::RA arc perfomlcd in accordance to NELAC protocols\ Pertinent sampling infomlalion is located on the attached COCo This report is provided fOT the exclusive U5C,D.ftite addressee. Privileges of
subsequent use oflhe nallle of this company'OT allY member orits staff, or reproduction oflhis report in ~onncction with the advertisement, promotion or sale of any product or process, or in connection with the rc-P4J:>lication 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 duc pcrfonnancc of inspection and/or analysis in good faith and according to the rulcs of the trade and of science.
Lab Sample ID: 1108534-005B
Client Sample ID: Ce1l4a LDS
Analyzed: 9/7/2011 2039h Extracted:
Units: Ilg/L
Dilution Factor: 1
American West Compound
8/30/2011 0933h
CAS
Number
Reporting
Limit
Analytical
Result Qual AN A I.YTI CA l LAOORATO R I ES ____________________________________________ _
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-labs.com
Benzo(a)pyrene
Benzo(b )fluoranthene
Benzo(g,h,i)perylene
Benzo(k)fluoranthene
B is(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
Kyle F. Gross Fluorene
Laboratory Director Hexachlorobenzene
Hexachlorobutadiene
Jose Rocha Hexachlorocyc1opentadiene
QA Officer Hexachloroethane
Indeno(l ,2,3 -cd)pyrene
Isophorone
N -N itrosodimethylamine
N -Nitrosodiphenylamine
N-Nitrosodi-n-propylamine
Naphthalene
Nitrobenzene
Pentachlorophenol
Phenanthrene
Phenol
Pyrene
Pyridine
SUIT: 2,4,6-Tribromophenol
SUIT: 2-Fluorobiphenyl
SUIT: 2-Fluorophenol
SUIT: Nitrobenzene-d5
50-32-8
205-99-2
191-24-2
207-08-9
111-91-1
111-44-4
108-60-1
117-81-7
85-68-7
218-01-9
84-74-2
117-84-0
53-70-3
84-66-2
131-11-3
206-44-0
86-73-7
118-74-1
87-68-3
77-47-4
67-72-1
193-39-5
78-59-1
62-75-9
86-30-6
621-64-7
91-20-3
98-95-3
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
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
14-159
10-124
10-106
10-180
< 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
78.5
21.9
31.2
10.6
Report Date: 919/2011 Page 27 of47
All analyses applicable to.!he CWA, SDWA. and RCRA arc performed in accord.ance to NELAC protocols. Pertinent sampling infomlatjon is lo~atcd on Ihe attached COC. This report is provi~cd for the exclusive usc of the addressee. Privileges of.
subsequent lISC of the name of this company or any member of its staff, orTcp[oduction of this report in connection with the advertise.Plcnt, promotion or sale of any product or process, or it). connection with the Tc·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 pCrf0n11anCe of inspection and/or analysis in good fhith and according to the rules of the trade and of science.
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-Iabs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Lab Sample ID: 1108534-005B
Client Sample ID: Cell4a LDS
Analyzed: 91712011 2039h
Units: /lg/L
Dilution Factor: 1
Compound
Surr: Phenol-d6
SUIT: Terpheny1-d14
Extracted: 8130/2011 0933h
CAS
Number
13127-88-3
1718-51-0
This sample was analyzed for the TIC compound 4-Chlorophenol and was not detected
Reporting Analytical
Limit Result Qual
10-122 44.4
10-199 98.6
Report Date: 919/2011 Page 28 of 47
,All analyses applicable to the CWA, SDWA. and RCRA arc pcrfomlcd in accordance to NELAC protocols. Pt;:rtinent sampling infomlalion is located .on the attached.COC. This report is provided for the exclusive usc oft1.lc addressee. Privileges of
subsequent use of the name of this company or -any .member of its staff, or reproduction of this report itt cOI:1.nection with the advertisement, promotion or sale of ar)y product or process, or in connection with the (C-I,ubh~atioll 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 perfonnnncc of inspection and/or analysis in good faith and according to thc rules of the trade and of sciencc.
EI\ERGY
LABORATORIES
www.energylab.com
Analytical £Xcsl/sncs Sincs 1152
:He!ena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515
Gillette, 'NY 866-6B6~7175 II Rapid City, SIl. 888-672-1225 • College Station, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: Annual Tails 2011
Lab ID: C 11081062-006
Client Sample ID: Cell4B
Analyses Result Units
MAJOR IONS
Acidity, Total as CaC03 32800 mg/L
Carbonate as C03 NO mg/L
Bicarbonate as HC03 NO mg/L
Calcium 570 mg/L
Chloride 8290 mg/L
Fluoride 26.7 mg/L
Magnesium 3910 mg/L
Nitrogen, Ammonia as N 5220 mg/L
Nitrogen, Nitrate+Nitrite as N 39 mg/L
Potassium 1370 mg/L
Sodium 9050 mg/L
Sulfate 134000 mg/L
-Acidity reported for informational purposes due to a sample pH of less than 4.
PHYSICAL PROPERTIES
Conductivity @ 25 C
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 (±)
Gross Alpha minus Rn & U MOC
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
76900 umhos/cm
1.87 S.u.
98000 mg/L
67400 ug/L
311 ug/L
1990 ug/L
6860 ug/L
17800 ug/L
193000 ug/L
2960000 ug/L
9960 ug/L
128000 ug/L
13.7 ug/L
21400 ug/L
33900 ug/L
4670 ug/L
137 ug/L
237 ug/L
196 ug/L
133000 ug/L
660000 ug/L
191000 ug/L
8590 pCi/L
25.6 pCilL
0.4 pCi/L
MDC -Minimum detectable concentration
E -Estimated value. Result exceeds the instrument upper
quantitation limit.
Report Date: 10/19/11
Collection Date: 08/24/11 14:45
DateReceived: 08/26/11
Matrix: Aqueous
MCL!
Qualifier Rl QCl Method Analysis Date 1 By
0
0
0
D
0
0
0
0
E
0
0
D
D
0
D
0
5 A2310 B 08/29/11 08:401 jba
A2320 B 08/26/11 18:30 1 jba
1 A2320 B 08/26/11 18 :30 1 jba
10 E200.7 09/23/11 10:19 1 cp
A4500-CI B 08/31/1115:42/wc
1.0 A4500-F C 08/29/11 11 :25 1 jba
5 E200.7 09/23/11 10:191 cp
100 A4500-NH3 G 08/29/11 15:47 1 dc
20 E353.2 09/07/11 16:35 1 dc
5 E200.7 09/23/11 10:19 1 cp
20 E200.7 09/23/11 10:19 1 cp
2000 A4500-S04 E 09/16/1115:13 /wc
A2510 B 08/26/11 15:09 1 wc
0.01 A4500-H B 08/26/11 15:09 1 wc
410 A2540 C 08/30/11 15:51 IImc
5.0 E200.8 08/29/11 15:55 1 sml
5.1 E200.8 09/22/11 12:501 sml
3.4 E200.8 08/29/11 15:55 1 sml
25 E200.8 08/29/11 15:551 sml
10 E200.8 08/29/11 15:55 1 sml
10 E200.8 08/29/11 15:551 sml
100 E200.7 09/12/11 12:13 1 cp
1.0 E200.8 08/29/11 15:551 sml
10 E200.8 08/29/11 15:55 1 sml
1.2 E200.8 08/29/11 15 :55 1 sm I
10 E200.8 08/29/11 15:551 sml
20 E200.8 08/29/11 15:55 1 sml
5.0 E200.8 08/29/11 15:55 1 sml
10 E200.8 08/29/11 15:55 1 sml
1.2 E200.8 08/29/11 15:551 sml
100 E200.8 09/22/11 02:54 1 sml
0.39 E200.8 08/29/11 15:551 sml
15 E200.8 08/29/11 15:551 sml
10 E200.8 08/29/11 15:551 sml
E900.1 09/09/11 16:51 1 ep
E900.1 09/09/11 16:51 1 ep
E900.1 09/09/11 16:51 1 ep
MCL -Maximum contaminant level.
NO -Not detected at the reporting limit.
D -RL increased due to sample matrix.
Page 13 of 43
EN:RGY
LABORATORIES
www.energylab.com
Analytical Exesllsnes Sines /952
~.
J~1:, ~.~~ . Helena, MTm-412-0711 • Billings, MT 800-735-4489 · Casper, WY 888-235-0515
~illeJte,.wY 86&-~86-1115 • Rapid City, SO 888-672-1225 • College Station, TX 888-&90-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Denison Mines USA Corp
Annual Tails 2011
LablD: C 11081062-006
Client Sample ID: Cell 4B
Analyses
DATA QUALITY
AlC 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: 1,2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: T oluene-dS
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
Result
-25.2
3020
1S10
157000
0.620
130
ND
ND
9.4
S.5
ND
ND
ND
ND
ND
109
119
93.0
90.0
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
Qualifier 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: 10/19/11
Collection Date: 08/24/11 14:45
DateReceived: 08/26/11
Matrix: Aqueous
MCL!
QCl Method Analysis Date 1 By
Calculation 10/19/11 15:501 sdw
Calculation 10/19/11 15:501 sdw
Calculation 10/19/11 15:50 1 sdw
Calculation 10/19/11 15:501 sdw
Calculation 10/19/11 15:501 sdw
SWS260B 09/06/11 16:40 1 jlr
SWS260B 09/06/11 16:40 1 jlr
SWS260B 09/06/11 16:401 jlr
SWS260B 09/06/11 16:401 jlr
SWS260B 09/06/11 16:401 jlr
SWS260B 09/06/11 16:401 jlr
SWS260B 09/06/11 16:401 jlr
SWS260B 09/06/11 16:401 jlr
SWS260B 09/06/11 16:401 jlr
SWS260B 09/06/11 16:40 1 jlr
SWS260B 09/06/11 16:401 jlr
SWS260B 09/06/11 16:40 1 jlr
SWS260B 09/06/11 16:40 1 jlr
SWS260B 09/06/11 16 :40 1 jlr
MCL -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 14 of 43
ORGANIC ANALYTICAL REPORT
Client: Denison Mines Contact: Jo Ann Tischler
Project: Annual Tailings 2011
Lab Sample ID: 1108534-006A
American West
ANA LVTI CAl LADORATO RIES
Client Sample ID: Cell 4b
Collection Date: 8/24/2011 1445h
Received Date: 8/26/2011 1000h Method: SW8260C
Analytical Results VOAs Full List by GCIMS Method 8260C/S030C
Analyzed: 8127/2011 2211h
Units: /lg/L
463 West 3600 South Dilution Factor: 10
Salt Lake City, UT 84115 Compound
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Tetrahydrofuran
SUIT: 1,2-Dichloroethane-d4
SUIT: 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
10.0 < 10.0
77-144 112
80-123 104
80-124 104
80-125 101
Report Date: 9/9/2011 Page 10 of 4 7
All analyses applicable to the .CWA, SOW A, and RCRA arc pcrfomlcd in accordancr; 10 NELAC protocols. Pertinent sampling information js located on the attached COCo This rr::port is provided Jor the exclusive usc orlhe addressee. Privileges of
subsequent use of the nalll~ of this-company or any member of its staff, or rcprodl,l.ction of this report in connection with the advcrliscmcl),t, 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. lllis company accepts no responsibility except for the due performance of inspection and/or analysis in good faith and according to the rules of the trade and of science.
ORGANIC ANALYTICAL REPORT
Client: Denison Mines
Project: Annual Tailings 2011
Lab Sample ID: 1108534-006B
Client Sample ID: Ce1l4b
ANA LYTICAL I.ABORATORIES Collection Date: 8/2412011
Received Date: 8/26/2011
Analytical Results
Analyzed: 91712011 2131h
Units: /!g/L
463 West 3600 South Dilution Factor: 1
Salt Lake City, UT 84115 Compound
1,2,4-Trichlorobenzene
1,2-Dichlorobenzene
Phone: [phone],3-Dichlorobenzene
Toll Free: [phone] l,4-Dichlorobenzene
Fax: [phone] I-Methylnaphthalene
e-mail: [e-mail] 2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
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
Benzidine
1445h
1000h
Extracted:
Contact: Jo Ann Tischler
Method: SW8270D
SVOA List by GC/MS Method 8270D/351OC
8/3012011 0933h
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
92-87-5 10.0 < 10.0
Report Date: 919/2011 Page 29 of47
All analyses applicable to the; CWA, SDWA. and RCRA arc pCrfOnllCd in accordan~e to NELAC protocols. Pertinent sampling information. is located on the attached CDC. This report is provide4 for Ihe exclusive use of the addressee. Privileges of
subsequent use Oflhc"nan)c oflhi5 company or any member or its staff, or rcpro4!Jclion of this report in connection with the advcrtisclll~J1t, promotion or sale orallY product or process, or in c(,I.nncelion with the re-publication of this report for any ""
purpose other than for the addressee will be grantcd only on contact. lllis company accepts no responsibility except for the due performance of inspection and/or analysis in good faith and according to the rules of the trade and of science.
Lab Sample ID: 1108534-006B
Client Sample ID: CeU4b
Analyzed: 917120112131h Extracted: 8/3012011 0933h
Units: )lg/L
Dilution Factor: 1 CAS Reporting Analytical
Compound Number Limit Result Qual
Benzo(a)pyrene 50-32-8 10.0 < 10.0
Benzo(b )fluoranthene 205-99-2 10.0 < 10.0
Benzo(g,h,i)perylene 191-24-2 10.0 < 10.0
Benzo(k)fluoranthene 207-08-9 10.0 < 10.0
463 West 3600 South Bis(2-chloroethoxy)methane 111-91-1 10.0 < 10.0
Salt Lake City, UT 84115 Bis(2-chloroethyl) ether 111-44-4 10.0 < 10.0
Bis(2-chloroisopropyl) ether 108-60-1 10.0 < 10.0
Butyl benzyl phthalate 85-68-7 10.0 < 10.0
Phone: [phone] Chrysene 218-01-9 10.0 < 10.0
Toll Free: [phone] Di-n-butyl phthalate 84-74-2 10.0 < 10.0
Di-n-octyl phthalate 117-84-0 10.0 < 10.0 Fax: [phone]
Dibenz( a,h )anthracene 53-70-3 10.0 < 10.0 e-mail: [e-mail]
Diethyl phthalate 84-66-2 10.0 < 10.0
web: www.awal-Iabs.com Dimethyl phthalate 131-11-3 10.0 < 10.0
Fluoranthene 206-44-0 10.0 < 10.0
Fluorene 86-73-7 10.0 < 10.0
Kyle F. Gross Hexachlorobenzene 118-74-1 10.0 < 10.0
Laboratory Director Hexachlorobutadiene 87-68-3 10.0 < 10.0
Hexachlorocyclopentadiene 77-47-4 10.0 < 10.0
Jose Rocha Hexachloroethane 67-72-1 10.0 < 10.0
QA Officer Indeno( 1,2,3 -cd)pyrene 193-39-5 10.0 < 10.0
Isophorone 78-59-1 10.0 < 10.0
N-Nitrosodimethylamine 62-75-9 10.0 < 10.0
N-Nitrosodiphenylamine 86-30-6 10.0 < 10.0
N-Nitrosodi-n-propylamine 621-64-7 10.0 < 10.0
Naphthalene " 91-20-3 10.0 < 10.0
Nitrobenzene 98-95-3 10.0 < 10.0
Pentachlorophenol 87-86-5 10.0 < 10.0 '@
Phenanthrene 85-01-8 10.0 < 10.0
Phenol 108-95-2 10.0 < 10.0
Pyrene 129-00-0 10.0 < 10.0
Pyridine 110-86-1 10.0 < 10.0
SUIT: 2,4,6-Tribromophenol 118-79-6 14-159 44.9
SUIT: 2-Fluorobiphenyl 321-60-8 10-124 45.1
SUIT: 2-Fluorophenol 367-12-4 10-106 1.80 S
SUIT: Nitrobenzene-d5 4165-60-0 10-180 55.0
SUIT: Phenol-d6 13127-88-3 10-122 85.9
Report Date: 9/9/2011 Page 30 of 47
AI,I analyses applicable to Ihe CWA, SDWA, and ReRA ""TC pcrfomlcd in acc.ordancc to NELAC protocols. Perti.nent sampling infonnation is located on the att<!chcd COCo This report is provided for Ihe exclusive usc of the l.'ddrcsscc. Privileges of
. subsequent usc of the name of this company or any m~rnbcr of its staff, or reproduction of this reporl in conn~ction with the advertisement, promotion or sale of any product or process, or in connection with Ihe re-publicaHon 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 pcrfonnance of inspection and/or analysis in good faith and according to the rules of the trade and of science.
Lab Sample ID: 1108534-006B
Client Sample ID: Ce1l4b
Analyzed: 91712011 2131h Extracted:
Units: Ilg/L
Dilution Factor: 1
Compound
SUIT: Terphenyl-dl4
8/30/2011 0933h
CAS
Number
1718-51-0
Reporting
Limit
10-199
I _ Matrix spike recovelY indicates matrix interference. The method is in control as indicated by the LCS.
@ -High RPD due to suspected sample non-homogeneity or matrix interference.
Analytical
Result
96.9
S -Surrogate recoveries outside the control limits. MS samples yielded similar results indicating matrix interference.
This sample was analyzed for the TIC compound 4-Chlorophenol and was not detected.
463 West 3600 South
Salt Lake City, UT 84115
Analyzed: 9/9/2011 1320h
Units: Ilg/L
Dilution Factor: 5
Compound
Phone: [phone] Bis(2-ethylhexyl) phthalate
Toll Free: [phone] SUIT: 2,4,6-Tribromophenol
Fax: [phone] SUIT: 2-Fluorobiphenyl
e-mail: [e-mail] Surr: 2-Fluorophenol
SUIT: Nitrobenzene-d5
web: www.awal-labs.com Surr: Phenol-d6
Surr: Terphenyl-dl4
Extracted: 8/30/2011 0933h
CAS
Number
117-81-7
118-79-6
321-60-8
367-12-4
4165-60-0
13127-88-3
1718-51-0
The reporting limits were raised due to high analyte concentrations.
Reporting Analytical
Limit Result
50.0 410
14-159 53.1
10-124 47.5
10-106 1.06
10-180 53.8
10-122 93.3
10-199 105
Kyle F. Gross
Laboratory Director
S -Surrogate recoveries outside the control limits. MS samples yielded similar results indicating matrix interference.
Jose Rocha
QA Officer
Qual
Qual
s
Report Date: 919/2011 Page 31 of47
All analyses applicable to thc.GWA. SDWA. and RCRA are performed in accordance ~o NELAC protocols. Pertinent sampling information is.located on the atlache~ Cac. This report is provided fQr the exclusive use of the addressee. Privileges of
subsequent usc of the name .Qf this company or any member of its staff, or rcprorluc.~ion of Ihis report in connection with the advertisement •. promotion or sale of any product or process, or in con~~ction 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 of the trade and of science.
EN:RGY www.energylab.com . . ~elena, MT 877-412-0111 • Billings, MT 800-135-4489 . Casper, WY 888-235-0515
LABORATORIES Analytical uCBl/sncB SincB '852 ~!'II~~e, VlY 866-686-1115 • Rapid City, SO 888-612-1225 • College Station, 1)( 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: Annual Tails 2011
Lab ID: C 11081062-007
Client Sample ID: Cell4B LDS
Analyses Result Units
MAJOR IONS
Acidity, Total as CaC03 26100 mg/L
Carbonate as C03 ND mg/L
Bicarbonate as HC03 ND mg/L
Calcium 486 mg/L
Chloride 3630 mg/L
Fluoride 28.4 mg/L
Magnesium 3230 mg/L
Nitrogen, Ammonia as N 4260 mg/L
Nitrogen, Nitrate+Nitrite as N 30 mg/L
Potassium 1130 mg/L
Sodium 8240 mg/L
Sulfate 59900 mg/L
- Acidity reported for informational purposes due to a sample pH of less than 4.
PHYSICAL PROPERTIES
Conductivity @ 25 C
pH
Solids, Total Dissolved TDS @ 180 C
METALS -DISSOLVED
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Iron
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Tin
Uranium
Vanadium
Zinc
RADIONUCLIDES -DISSOLVED
Gross Alpha minus Rn & U
Gross Alpha minus Rn & U Precision (±)
Gross Alpha minus Rn & U MDC
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
63000 umhoslcm
2.23 S.u.
85800 mg/L
54200 ug/L
274 ug/L
1670 ug/L
6250 ug/L
15600 ug/L
176000 ug/L
2450000 ug/L
6060 ug/L
118000 ug/L
12.3 ug/L
16700 ug/L
30700 ug/L
3710 ug/L
111 ug/L
179 ug/L
332 ug/L
111000 ug/L
518000 ug/L
172000 ug/L
6000 pC ilL
21.4 pC ilL
0.4 pCi/L
MDC -Minimum detectable concentration
E -Estimated value. Result exceeds the instrument upper
quantitation limit.
Report Date: 10/19/11
Collection Date: 08/25/11 08 :00
DateReceived: 08/26/11
Matrix: Aqueous
MCL!
Qualifier RL QCL Method Analysis Date 1 By
D
D
D
D
D
D
D
D
E
0
D
D
0
D
0
0
5 A2310 B 08/29/11 08 :44 1 jba
A2320 B 08/26/11 18 :33 1 jba
1 A2320 B 08/26/11 18:33 1 jba
10 E200.7 09/12/11 12:171 cp
A4500-CI B 08/31/11 15:471 wc
1.0 A4500-F C 08/29/11 11 :29 1 jba
5 E200.7 09/12/1112:17/cp
50 A4500-NH3 G 08/29/11 15 :37 1 dc
20 E353.2 09/07/11 16:37 1 dc
5 E200.7 09/12/11 12:171 cp
20 E200.7 09/12/11 12:171 cp
1000 A4500-S04 E 09/16/1115:15 /wc
A2510 B 08/26/11 15:121 wc
0.01 A4500-H B 08/26/1115:12 /wc
230 A2540 C 08/30/11 15:52 /1mc
5.0 E200.8 08/29/11 15:59 1 sml
5.1 E200.8 09/22/11 12:531 sml
3.4 E200.8 08/29/11 15:59 1 sml
25 E200.8 08/29/11 15:59 1 sml
10 E200.8 08/29/11 15:591 sml
10 E200.8 08/29/11 15:59 1 sml
100 E200.7 09/12/11 12:17 1 cp
1.0 E200.8 08/29/11 15:59 1 sml
10 E200.8 08/29/11 15 :59 1 sml
1.2 E200.8 08/29/11 15:59 1 sml
10 E200.8 08/29/11 15 :59 1 sm I
20 E200.8 08/29/11 15:59 1 sml
5.0 E200.8 08/29/11 15:59 1 sml
10 E200.8 08/29/11 15:59 1 sml
1.2 E200.8 08/29/11 15:59 1 sml
100 E200.8 09/22/11 03:091 sml
0.39 E200.8 08/29/11 15:59 1 sml
15 E200.8 08/29/11 15:59 1 sml
10 E200.8 08/29/11 15:591 sml
E900.1 09/09/11 16:511 ep
E900.1 09/09/11 16:51 1 ep
E900.1 09/09/11 16:51 1 ep
MCL -Maximum contaminant level.
ND -Not detected at the reporting limit.
o -RL increased due to sample matrix.
Page 15 of 43
EI\ERGY
LABORAT ORIES
www.energylab.com
Ana/ylfca/ ExcellsncB SincB 1952
! .. ' '"ejena, MTBU-472-0711 If Billings, MT 800-735-4489 • Casper, WY 888-235-0515
·.~lIIe~e, WY86S-S8S-7175 • Rapid City, SD 888-612-1225 • College Station, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Denison Mines USA Corp
Annual Tails 2011
Lab 10: C11 081 062-007
Client Sample 10: Cell 4B LOS
Analyses
OAT A QUALITY
AlC Balance (± 5)
Anions
Cations
Solids, Total Dissolved Calculated
TDS Balance (O.BO -1.20)
VOLATILE ORGANIC COMPOUNDS
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
Methyl ethyl ketone
Methylene chloride
Naphthalene
Toluene
Xylenes, Total
Surr: 1,2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-dB
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
Result
5.2B
1350
1500
77100
1.11
390
ND
ND
20
11
240
ND
ND
ND
ND
105
124
BB.O
90.0
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
Qualifier Rl
20
1.0
1.0
1.0
1.0
20
1.0
1.0
1.0
1.0
BO-1 20
70-130
BO-120
BO-120
Report Date: 10/19/11
Collection Date: 08/25/11 08:00
DateReceived: 08/26/11
Matrix: Aqueous
MCL!
QCl Method Analysis Date 1 By
Calculation 10103/11 12:051 kbh
Calculation 10103/11 12:05 1 kbh
Calculation 1 0103/11 12 :05 1 kbh
Calculation 1 0103/11 12 :05 1 kbh
Calculation 1 0103/11 12 :05 1 kbh
SWB260B 09/03/11 03:16 1 jlr
SWB260B 09/03/11 03:16 1 jlr
SWB260B 09/03/11 03:1 61 jlr
SWB260B 09/03/11 03: 16 1 jlr
SWB260B 09/03/11 03:161 jlr
SWB260B 09/03/11 03: 16 1 jlr
SWB260B 09/03/11 03: 16 1 jlr
SWB260B 09/03/11 03:1 6 1 jlr
SWB260B 09/03/11 03:161 jlr
SWB260B 09/03/11 03: 16 1 jlr
SWB260B 09/03/11 03: 16 1 jlr
SWB260B 09/03/11 03:16 1 jlr
SWB260B 09/03/11 03:161 jlr
SWB260B 09/03/11 03:161 jlr
MCL -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 16 of 43
ORGANIC ANALYTICAL REPORT
Client: Denison Mines
Project: Armual Tailings 2011
Lab Sample ID: 1108534-007 A
Client Sample ID: Cell4b LDS
Collection Date: 8/2512011 0800h
Received Date: 8126/2011 1000h
Analytical Results
Analyzed: 8/2712011 2230h
Units: /lg/L
Contact: Jo Arm Tischler
Method: SW8260C
VOAs Full List by GCIMS Method 8260C/5030C
463 West 3600 South Dilution Factor: 10 CAS Reporting Analytical
Salt Lake City, UT 84115 Compound Number Limit Result Qual -------------------------------------------------------------------
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Tetrahydrofuran
SUIT: 1,2-Dichloroethane-d4
SUIT: 4-Bromofluorobenzene
SUIT: Dibromofluoromethane
SUIT: Toluene-d8
The reporting limits were raised due to sample matrix interferences.
109-99-9 10.0 198
17060-07-0 77-144 112
460-00-4 80-123 103
1868-53-7 80-124 106
2037-26-5 80-125 100
Report Date: 919/2011 Page 11 of 47
AII.analyses applicable to the CWA, SDWA, and RCRA a~c pcr~ormed in accordance to NELAC protocols. Pertin.cnt sampling infomlation is located on the attached CO~. This report is provided for the exclusive usc ofthc_a~dressee. Privileges of
~ubscqucnt use of the name of this company or any-member of its siaff, or reproduction of this report in conncc::Uon with the advertisement, promotion or sale of any product or process, or in connection with the re-publication of this report for any
puq>ose 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 faith and according to the rules of the trade and of science.
ORGANIC ANALYTICAL REPORT
Client: Denison Mines
Project: Annual Tailings 2011
Lab Sample ID: 1108534-007B
American West Client Sample ID: Cell 4b LDS
ANA LYTI CAL I.ABORATORIES Collection Date: 8/25/2011 0800h
Received Date: 8/26/2011 1000h
Analytical Results
Analyzed: 91712011 2249h
Units: jlg/L
463 West 3600 South Dilution Factor: 1
Salt Lake City, UT 84115 Compound
Phone: (80l) 263-8686
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
1,2,4-Trichlorobenzene
1,2-Dichlorobenzene
1,3-Dichlorobenzene
1,4-Dichlorobenzene
I-Methylnaphthalene
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-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
Benzidine
Extracted:
Contact: Jo Ann Tischler
Method: SW8270D
SVOA List by GCIMS Method 8270D/351 OC
8/30/2011 0933h
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
92-87-5 10.0 < 10.0
Report Date: 9/9/2011 Page 32 of47
AIl.a!lalyses applicable 10 the CWA, SDWA. and RCRA arc. performed in accordance to NELAC protocols. Pertine!)' sampling infonllalion is located on Ihe attached Co.~: This report is provided for the exclusive usc oflhe adqressec. Privileges of
." supsequent use of Ihe name of this company or any nfClllber of its staff. or reproduction of this report in conncctign with -the advertisement, promotion or sale of anY'prQ4ucl or process, or in connection with the re-publirotiol} of this· report for any
purpose other than for the addressce will be granted only on contact. This company accepts no responsibility ex.cept for the due performance of inspection andlor analysis in good faith and according to the rules of the trade and of science.
Lab Sample ID: I 108534-007B
Client Sample ID: CelI 4b LDS
Analyzed: 9171201 I 2249h Extracted: 8/30/201 I 0933h
Units: ~g/L
Dilution Factor: 1 CAS Reporting Analytical
Compound Number Limit Result Qual
Benzo( a )pyrene 50-32-8 10.0 < 10.0
Benzo(b )f1uoranthene 205-99-2 10.0 < 10.0
Benzo(g,h,i)perylene 191-24-2 10.0 < 10.0
Benzo(k)f1uoranthene 207-08-9 10.0 < 10.0
463 West 3600 South Bis(2-chloroethoxy)methane 111-91-1 10.0 < 10.0
Salt Lake City, UT 84115 Bis(2-chloroethyl) ether 11 1-44-4 10.0 < 10.0
Bis(2-chloroisopropyl) ether 108-60-1 10.0 < 10.0
Butyl benzyl phthalate 85-68-7 10.0 < 10.0
Phone: [phone] Chrysene 218-01-9 10.0 < 10.0
TOII Free: [phone] Di-n-butyl phthalate 84-74-2 10.0 < 10.0
Di-n-octyl phthalate 117-84-0 10.0 < 10.0 Fax: [phone]
Dibenz( a,h )anthracene 53-70-3 10.0 < 10.0 e-mail: [e-mail]
Diethyl phthalate 84-66-2 10.0 < 10.0
web: www.awal-Iabs.com Dimethyl phthalate 131-11-3 10.0 < 10.0
Fluoranthene 206-44-0 10.0 < 10.0
Fluorene 86-73-7 10.0 < 10.0
Kyle F. Gross Hexachlorobenzene 118-74-1 10.0 < 10.0
Laboratory Director Hexachlorobutadiene 87-68-3 10.0 < 10.0
Hexachlorocyclopentadiene 77-47-4 10.0 < 10.0
Jose Rocha Hexachloroethane 67-72-1 10.0 < 10.0
QA Officer Indeno(l ,2,3 -cd)pyrene 193-39-5 10.0 < 10.0
Isophorone 78-59-1 10.0 < 10.0
N-Nitrosodimethylamine 62-75-9 10.0 < 10.0
N-Nitrosodiphenylamine 86-30-6 10.0 < 10.0
N -N itrosodi -n-propylamine 621-64-7 10.0 < 10.0
Naphthalene 91-20-3 10.0 < 10.0
Nitrobenzene 98-95-3 10.0 < 10.0
Pentachlorophenol 87-86-5 10.0 < 10.0
Phenanthrene 85-01-8 10.0 < 10.0
Phenol 108-95-2 10.0 < 10.0
Pyrene 129-00-0 10.0 < 10.0
Pyridine 110-86-1 10.0 < 10.0
Surr: 2,4,6-Tribromophenol 118-79-6 14-159 19.7
Surr: 2-Fluorobiphenyl 321-60-8 10-124 33.2
Surr: 2-Fluorophenol 367-12-4 10-106 3.51 s
Surr: Nitrobenzene-d5 4165-60-0 10-180 36.8
SUIT: Phenol-d6 13127-88-3 10-122 59.9
Report Date: 9/912011 Page 33 of 4 7
All analyses applicable to Ihe CWA. SDWA. and RCRA. arc pcrfonncd in accordance to ~ELAC protocols. Pertinent sampling infonnation is I09atcd on the attached COCo This report is provided for.tjJe exclusive use of the addressee. Privileges of
subsequent usc of the name of ~.his company or any member of its siaff, or reproduction oflhis-report in connection with the advertisement, pr.9motion or sale of any product or process, or in conncc~.ion with the fe-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 trade and of science.
ANAI.YTICAL LABORATORIES
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-Iabs.com
Lab Sample ID: 1108534-007B
Client Sample ID: Ce1l4b LDS
Analyzed: 91712011 2249h Extracted:
Units: )lg/L
Dilution Factor: 1
Compound
Surr: Terphenyl-d14
8/30/2011 0933h
CAS
Number
1718-51-0
Reporting
Limit
10-199
Analytical
Result
109
Qual
S -Surrogate recoveries outside the control limits. Repreparation and reanalysis of sample yielded similar results indicating matrix
interference.
This sample was analyzed for the TIC compound 4-Chlorophenol and was not detected.
Analyzed: 9/9/2011 1346h Extracted: 8/30/2011 0933h
Units: )lg/L
Dilution Factor: 2 CAS Reporting Analytical
Compound Number Limit Result Qual
Bis(2-ethylhexyl) phthalate 117-81-7 20.0 191
Surr: 2,4,6-Tribromophenol 118-79-6 14-159 19.1
Surr: 2-Fluorobiphenyl 321-60-8 10-124 28.6
Surr: 2-Fluorophenol 367-12-4 10-106 2.73 s
Surr: Nitrobenzene-d5 4165-60-0 10-180 32.8
Surr: Phenol-d6 13127-88-3 10-122 54.3
Surr: Terphenyl-d14 1718-51-0 10-199 96.7
The reporting limits were raised due to high analyte concentrations.
S -Surrogate recoveries outside the control limits. Repreparation and reanalysis of sample yielded similar results indicating matrix
Kyle F. Gross intelference.
Laboratory Director
Jose Rocha
QA Officer
Report Date: 919/2011 Page 34 of47
All analyses applicable to the CWA, SDWA, and RCRA afC perfomlcd in accordance to NELAC protocols. Pertinent ~ampling infonnation is located on the attached coc. This report is provided for the exclusive usc of the addrc-\,sec. Privileges of
subs~quenl use of the nallle of this company or any member .ofits slaff, or reproduction of this report in connection with the advertisement, promotion or 5<11c orany produ~t or process, or in connection with the re-publication of this report for any
purpose other than for the addressee will be grantcd 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 trade and of science.
EN:RGY
LABORATORIES
www.energylab.com
Analytical ExcsllsnCl SInes 1952
.~elena, MT 877-472-D711 8 Billings, MT 800-735-4489 . Casper, WY 888-235-0515
.~iII~ti:e; wY 868~686-7175 • Rapid City, SD888-672-1225 • College station, lX 888-890-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: Annual Tails 2011
Lab 10: C 11081062-008
Client Sample 10: Cell 4A BC
Analyses Result Units
MAJOR IONS
Acidity, Total as CaC03 26500 mg/L
Carbonate as C03 ND mg/L
Bicarbonate as HC03 ND mg/L
Calcium 470 mg/L
Chloride 5520 mg/L
Fluoride 46.0 mg/L
Magnesium 4940 mg/L
Nitrogen, Ammonia as N 3500 mg/L
Nitrogen, Nitrate+Nitrite as N 94 mg/L
Potassium 1470 mg/L
Sodium 11000 mg/L
Sulfate 70800 mg/L
-Acidity reported for informational purposes due to a sample pH of less than 4.
PHYSICAL PROPERTIES
Conductivity @ 25 C
pH
Solids, Total Dissolved TDS @ 180 C
METALS -DISSOLVED
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
Iron
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Tin
Uranium
Vanadium
Zinc
RADIONUCLIDES -DISSOLVED
Gross Alpha minus Rn & U
Gross Alpha minus Rn & U Precision (±)
Gross Alpha minus Rn & U MDC
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
66600 umhoslcm
2.33 S.u.
93800 mg/L
71000 ug/L
374 ug/L
2860 ug/L
5720 ug/L
19600 ug/L
143000 ug/L
2450000 ug/L
4110 ug/L
188000 ug/L
12.1 ug/L
26100 ug/L
28800 ug/L
3680 ug/L
114 ug/L
260 ug/L
118 ug/L
150000 ug/L
740000 ug/L
198000 ug/L
7420 pCi/L
23.8 pCi/L
0.4 pCi/L
MDC - Minimum detectable concentration
E -Estimated value. Result exceeds the instrument upper
quantitation limit.
Report Date: 10/19/11
Collection Date: 08/24/11 14:15
DateReceived: 08/26/11
Matrix: Aqueous
MCL!
Qualifier RL QCl Method Analysis Date 1 By
D
D
D
D
D
D
D
D
E
D
D
D
D
D
D
D
5 A2310 B 08/29/11 08:47 / jba
A2320 B 08/26/11 18 :36 1 jba
A2320 B 08/26/11 18:36 1 jba
10 E200.7 09/12/11 12:33 1 cp
A4500-CI B 08/31 /11 15:51 1 wc
1.0 A4500-F C 08/29/11 11 :36 1 jba
5 E200.7 09/12/11 12:33 1 cp
50 A4500-NH3 G 08/29/11 15 :39 1 dc
20 E353.2 09/07/11 16:40 1 dc
5 E200.7 09/12/11 12:33 1 cp
20 E200.7 09/12/11 12:33 1 cp
1000 A4500-S04 E 09/1 6/1115:18 /wc
A2510 B 08/26/11 15 :14 1 wc
0.01 A4500-H B 08/26/1 115:14 /wc
230 A2540 C 08/30/1 1 15 :52 IImc
5.0 E200.8 08/29/11 16:041 sml
5.1 E200.8 09/22/11 13:071 sml
3.4 E200.8 08/29/11 16:041 sml
25 E200.8 08/29/11 16:04 1 sml
10 E200.8 08/29/11 16:041 sml
10 E200.8 08/29/11 16:041 sml
100 E200.7 09/1 2/11 12:33 1 cp
1.0 E200.8 08/29/11 16:041 sml
10 E200.8 08/29/11 16:041 sml
1.2 E200.8 08/29/11 16:04 1 sml
10 E200.8 08/29/11 16:041 sml
20 E200.8 08/29/1 1 16:04 1 sml
5.0 E200.8 08/29/11 16:04 1 sml
10 E200.8 08/29/11 16:04 1 sml
1.2 E200.8 08/29/11 16:04 1 sml
100 E200.8 09/22/11 03:121 sml
0.39 E200.8 08/29/11 16:04 1 sml
15 E200.8 08/29/1 1 16:041 sml
10 E200.8 08/29/11 16:041 sml
E900.1 09/09/11 16:51 1 ep
E900.1 09/09/1 1 16:51 1 ep
E900.1 09/09/11 16:51 1 ep
MCL -Maximum contaminant level.
ND -Not detected at the reporting limit.
D -RL increased due to sample matrix.
Page 17 of 43
EN:RGY
LABORATORIES
www.energylab.com
Analytleal £XeaIlSflCB Sincs 1952
. Helena,MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515
.• ~i)I~tte; Vir 866-686-7175 • Rapid City, SO 888-672-1225 • College Station, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab ID:
Denison Mines USA Corp
Annual Tails 2011
C11 081 062-008
Client Sample ID: Cell 4A BC
Analyses Result _ Units
DATA QUALITY
AlC Balance (± 5)
Anions
Cations
Solids, Total Dissolved Calculated
TDS Balance (0.80 -1.20)
VOLATILE ORGANIC COMPOUNDS
Acetone
Benzene
Carbon tetrachloride
Chloroform
Chloromethane
Methyl ethyl ketone
Methylene chloride
Naphthalene
Toluene
Xylenes, Total
Surr: 1,2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
2.58 %
1640 meq/L
1730 meq/L
94900 mg/L
0.990
150 ug/L
NO ug/L
NO ug/L
33 ug/L
4.5 ug/L
100 ug/l
NO ug/L
NO ug/L
NO ug/L
NO ug/L
106 %REC
121 %REC
87.0 %REC
89.0 %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
80-1 20
80-120
Report Date: 10/19/11
Collection Date: 08/24/11 14:15
DateReceived: 08/26/11
Matrix: Aqueous
MCL!
QCl Method Analysis Date 1 By
Calculation 10103/11 07: 171 kbh
Calculation 10103/11 07:171 kbh
Calculation 10103/11 07:17 1 kbh
Calculation 10103/11 07:171 kbh
Calculation 10103/11 07:171 kbh
SW8260B 09/03/1 1 03 :531 jlr
SW8260B 09/03/11 03 :531 jlr
SW8260B 09/03/11 03 :53 1 jir
SW8260B 09/03/11 03 :53 1 jlr
SW8260B 09/03/11 03 :53 1 jlr
SW8260B 09/03/11 03 :53 1 jlr
SW8260B 09/03/1 1 03:53 1 jlr
SW8260B 09/03/11 03:53 / jlr
SW8260B 09/03/11 03:53/ jlr
SW8260B 09/03/11 03:53 / jlr
SW8260B 09/03/11 03:53 / jlr
SW8260B 09/03/11 03 :53 / jlr
SW8260B 09/03/11 03 :53 / jlr
SW8260B 09/03/11 03 :53 / jlr
MCL -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 18 of43
ORGANIC ANALYTICAL REPORT
Client: Denison Mines
Project: Annual Tailings 2011
Lab Sample ID: 1108534-008A
Client Sample ID: Cell4a BC
Collection Date: 812412011 1415h
Received Date: 8126/2011 1000h
Analytical Results
Analyzed: 8/2712011 2249h
Units: ).lg/L
Contact: Jo Ann Tischler
Method: SW8260C
VOAs Full List by GCIMS Method 8260C/S030C
463 West 3600 South Dilution Factor: 10 CAS Reporting Analytical
Salt Lake City, UT 84115 Compound Number Limit Result Qual -------------------------------------------------------------------
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-Iabs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Tetrahydrofuran
Surr: 1,2-Dichloroethane-d4
SUIT: 4-Bromofluorobenzene
SUIT: Dibromofluoromethane
Surr: Toluene-d8
The reporting limits were raised due to sample matrix interferences.
109-99-9 10.0 99.4
17060-07-0 77-144 113
460-00-4 80-123 104
1868-53-7 80-124 106
2037-26-5 80-125 101
Report Date: 919/2011 Page 12 of 47
All analyses applicable 10 the CV! A. SDWA, and RCRA arc pcrfonnc~ in accordance t~ NELAC protocols. Pertinent sampling infonlH\lion is i!lcated on Ihe attached COc. This report is prt;lvided fOf.lhe exclusive usc of the addressee. Privileges of
subsequent use of Ihe name of Ihis company or any member of its staff, or rcproductjpn oflhis report in connection with the advertisement, promotion or sale of any product or process, or in conn~~lion with the re-publication of this report for any ·'
purpose other than for the addressee will be granted only on contact 111is company accepts no responsibility except for the due perfonllance of inspection and/or analysis in good faith and according 10 the rules of the trade and of science.
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings 2011
1108534-008B
Client Sample ID: Ce1l4a BC
Collection Date: 8/24/2011 1415h
Received Date: 8/26/2011 1000h
Analytical Results
Analyzed: 91712011 2341h Extracted:
Units: Ilg/L
463 West 3600 South Dilution Factor: 1
Salt Lake City, UT 84115 Compound
Contact: Jo Ann Tischler
Method: SW8270D
SVOA List by GCIMS Method 8270D/351 OC
8/30/2011 0933h
CAS Reporting Analytical
Number Limit Result Qual -------------------------------------------------------------------
1,2,4-Trichlorobenzene
1,2-Dichlorobenzene
Phone: [phone],3-Dichlorobenzene
Toll Free: [phone] 1,4-Dichlorobenzene
Fax: [phone]-Methylnaphthalene
e-mail: [e-mail] 2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
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
Benzidine
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
92-87-5
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
10.0 < 10.0
Report Date: 9/9/2011 Page 35 of47
All analyses applicable to the CWA, ,SDWA, and ReRA are pcrfonncd in accordance to NE.LAC protocols. Pertinent sampling infomlation is iocat9d on the attached COCo This report i~ provided for the .exclusive use of the addressee. Privileges of
subsequent use of the name of Ihi~ company Of any member of its staff, or reproduction ()f this report in connection with the advertisement. prom.otion or sale of any product or process, or in conm,'Cliop 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 analysis in good faith and according to the rules of the trade and of science.
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone]
Toll Free: [phone]
Fax: (801) 263··8687
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
LaboratolY Director
Jose Rocha
QA Officer
Lab Sample ID: 1108534-008B
Client Sample ID: Cell4a BC
Analyzed: 917120112341h Extracted:
Units: /lg/L
Dilution Factor: 1
Compound
Benzo(a)pyrene
Benzo(b )f1uoranthene
Benzo(g,h,i)perylene
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
Hexachlorocyclopentadiene
Hexachloroethane
Indeno(l,2,3-cd)pyrene
Isophorone
N -N itrosodimethy lamine
N-Nitrosodiphenylamine
N-Nitrosodi-n-propylamine
Naphthalene
Nitrobenzene
Pentachlorophenol
Phenanthrene
Phenol
Pyrene
Pyridine
Surr: 2,4,6-Tribromophenol
Surr: 2-Fluorobiphenyl
SUIT: 2-Fluorophenol
SUIT: Nitrobenzene-d5
8/30/2011 0933h
CAS Reporting Analytical
Number Limit Result Qual
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
87-86-5 10.0 < 10.0
85-01-8 10.0 < 10.0
108-95-2 10.0 < 10.0
129-00-0 10.0 < 10.0
110-86-1 10.0 < 10.0
118-79-6 14-159 78.0
321-60-8 10-124 26.2
367-12-4 10-106 32.9
4165-60-0 10-180 13.3
Report Date: 91912011 Page 36 of 47
All al1aly.s~s applicable to the CWA, SDWA. and RCRA arc perfo.Tmed in accordance to NELAC protocols. Pertinent san)piing infonnation is located on the attached CDC. This. report is provided for the exclusive usc of the addresse~. Privileges of
suhscql;lcnt usc-of the name of this company or any member oeits staff, or reproduction oflhis report in connection wi.th the advertisement, promotion or sale of any product QT process, or in connection with the fe-publication 'Of litis report for any
purpose other than for the addressce will bc granted only on contact. 1l1is company accepts no responsibility except for the due pcrfonnance of inspection and/or analysis in good faith and according to the rules of the trade and of science.
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Lab Sample 10: 1108534-008B
Client Sample 10: Cell4a BC
Analyzed: 91712011 2341h
Units: Ilg/L
Dilution Factor: 1
Compound
Surr: Phenol-d6
Surr: Terphenyl-dl4
Extracted: 8130/2011 0933h
CAS
Number
13127-88-3
1718-51-0
This sample was analyzed for the TIC compound 4-Chlorophenol and was not detected.
Reporting Analytical
Limit Result Qual
10-122 41.5
10-199 95.5
Report Date: 919/2011 Page 37 of 47
All analyses applicable to the CWA. SPWA, and RCRA arc perfomlcd in ac.cordancc 10 NELAC protocols. Pertinent sampling infonnation is located 9" the attached COCo This report is provided for the cx~lusivc usc of the addressee. Privileges of
subsequent usc of the name of this CQrnpany-or any member of its stafT, or reproduction"oflhis report in connection with the advertisement, promo!!pn or sale of any product or process, or in conneclion \V.ilh the fe-publication of this report for any
purpose olher than for the addressee will be granted only on conlael. This company accepts no responsibilily exeepl for the due performance of inspection and/or analysis in good faith and according to the rules of the trade and of science.
EN:RGY
LABORATORIES
www.energylab.com
Analytical uCiI/.nc. SlI/C. 7952
'j, . .Helen~, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515
{. \ ... -'-.
,l" ',., '§iI'~!te, WY 866-QB6-7175 • Rapia City, SD 888-672-1225 • College Station, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Denison Mines USA Corp
Annual Tails 2011
Lab 10: C 11081062-009
Client Sample 10: Trip Blank 6092
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
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
100
102
87.0
86.0
Units
ug/L
ug/L
ug/L
ug/L
ug/L
ug/l
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
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: 10/19/11
Collection Date: 08/25/11
DateReceived: 08/26/11
Matrix: Aqueous
MCL!
QCL Method Analysis Date 1 By
SW8260B 09/03/11 04 :29 1 jlr
SW8260B 09/03/11 04:29 / jlr
SW8260B 09/03/11 04:29 / jlr
SW8260B 09/03/11 04:29 / jlr
SW8260B 09/03/11 04:29 / jlr
SW8260B 09/03/11 04:29 / jlr
SW8260B 09/03/11 04:29 / jlr
SW8260B 09/03/11 04 :29 / jlr
SW8260B 09/03/11 04:291 jlr
SW8260B 09/03/11 04:291 jlr
SW8260B 09/03/11 04:291 jlr
SW8260B 09/03/11 04:29 1 jlr
SW8260B 09/03/11 04:29 1 jlr
SW8260B 09/03/11 04:29 / jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 19 of 43
ORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Denison Mines
Annual Tailings 2011
1108534-009A
Client Sample ID: Trip Blank
ANALYTICAL LABORATORIES Collection Date: 8/24/2011
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-Iabs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Received Date: 8/26/2011 1000h
Analytical Results
Analyzed: 8/27/2011 1959h
Units: I!g/L
Dilution Factor: 1
Compound
Tetrahydrofuran
Surr: 1,2-Dichloroethane-d4
Surr: 4-Bromofluorobenzene
Surr: Dibromofluoromethane
Surr: Toluene-d8
Contact: Jo Ann Tischler
Method: SW8260C
VOAs Full List by GCIMS Method 8260C/S030C
CAS Reporting Analytical
Number Limit Result Qual
109-99-9 1.00 < 1.00
17060-07-0 77-144 108
460-00-4 80-123 106
1868-53-7 80-124 103
2037-26-5 80-125 99.9
Report Date: 919/2011 Page 13 of 47
All an{llyses applicable to the CWA, SDWA, and RCRA arc p'crfomlcd in ~ccordancc to NELAC protocols. Pertinent sampling information is located on the attached COCo Jhis report is providc.d for the exclusive use of the addr,csscc. Privileges of
"suQscqucnt usc of the name of this company or any membe.r of its staff, or reproduction of this reporl in conncctio.n with the advertisement, promotion or sale of any proq!-lct or process, or in connection with thc re-publication9fthis report for any
purpose other than for the addressee will be granted only on contact. This company accepts no responsibility exccpt for the due performance of inspection and/or analysis in good faith and according to the rulcs of the trade and of scicncc.
EN:RGY
LABORATORIES
www.energylab.com
Analytical Excsl/snes Sines m2
/':'ijelepa, MT877-472-0711 • Billings, MT 800-735-4489 . Casper, WY 888-235-0515 ·'1B\L!t::;::ijilJetfe,wY 866~~86-7175 . Rapip City, SO 888-672-1225 · College Station, 1X 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab ID:
Denison Mines USA Corp
Annual Tails 2011
C11 081 062-01 0
Client Sample ID: Temp Blank
Analyses Result Units
PHYSICAL PROPERTIES
Temperature
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
1.8
Qualifier Rl
Report Date: 10/19/11
Collection Date: 08/25/11
DateReceived: 08/26/11
Matrix: Aqueous
MCL!
QCl Method Analysis Date / By
E170.1 08/26/11 13:33/ kbh
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 20 of 43
wy.:w.energylab.com . Helena, MT 877-472-0711 • Billings, MT 800-135-4489 • Casper, WY 888-235-0515
Analytical hcal/ancs Sine. 11152 .',; 1':t\. . , ., ,,~, .. -'~. '.. .' 1 ' .
: :Gillette, WY ,66-686-1175 • Rapid City, SO 88B-612·1225 • College Station, TX 888-690-2218
ANALYTICAL SUMMARY REPORT
October 19, 2011
Denison Mines USA Corp
6425 S Hwy 191
Blanding, UT 84511
Workorder No.: C11081062
Project Name: Annual Tails 2011
Quote 10: C1640 -POC Wells
Energy Laboratories, Inc. Casper WY received the following 10 samples for Denison Mines USA Corp on 8/26/2011 for
analysis.
Sample 10 Client Sample 10 Collect Date Receive Date Matrix Test
C11081062-001 Celli 08/24/11 10:55 08/26/1 1 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 L· t
C11 081 062-002 Cell 2 08/24/11 11 :55 08/26/11 Aqueous Same As Above
C 11081062-003 Cell 3 08/24/11 8:30 08/26/11 Aqueous Same As Above
C11 081 062-004 Cell4A 08/24/11 14:00 08/26/11 Aqueous Same As Above
C11 081 062-005 Cell4A LOS 08/24/11 14:15 08/26/11 Aqueous Same As Above
C 11081062-006 Cell4B 08/24/11 14:45 08/26/11 Aqueous Same As Above
C 11081062-007 Cell4B LOS 08/25/11 8:00 08/26/11 Aqueous Same As Above
C 11081062-008 Cell4A BC 08/24/1 1 14:15 08/26/11 Aqueous Same As Above
C 11081062-009 Trip Blank 6092 08/25/11 0:00 08/26/11 Aqueous SW8260B VOCs, Standard List
C11 081 062-01 0 Temp Blank 08/25/11 0:00 08/26/11 Aqueous Temperature
The analyses presented in this report were performed at Energy Laboratories, Inc., 2393 Salt Creek Hwy., Casper,
WY 82601 , unless otherwise noted. Any exceptions or problems with the analyses are noted in the Laboratory
Analytical Report, the QA/QC Summary Report, or the Case Narrative.
The results as reported relate only to the item(s) submitted for testing. All samples are reported on an as received
basis unless otherwise indicated.
If you have any questions regarding these test results, please call.
Report Approved By:
c5¥~ D tJcJ.~
Reporting Supervisor
Digitally signed by
Stephanie Waldrop
Date: 2011 .10.19 16:45:40 -06:00
Page 1 of 43
www.energylab.com MT 871-472-0711 • Billings, MT 800-135-4489 • Casper, WY 888-235-0515
Analytlca' £Xc.l/snc. Sine. ,g52 ]X 888-690-2218
CLIENT: Denison Mines USA Corp
Project: Annual Tails 2011 Report Date: 10/19/11
Sample Delivery Group: C11 081 062 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.
SOIUSOLID SAMPLES
All samples reported on an as received basis unless otherwise indicated.
ATRAZINE, SIMAZINE AND PCB ANALYSIS
Data for PCBs, Atrazine and Simazine are reported from EPA 525.2. PCB data reported by ELI reflects the results for seven
individual Aroclors. When the results for all seven are NO (not detected), the sample meets EPA compliance criteria for
PCB monitoring.
SUBCONTRACTING ANALYSIS
Subcontracting of sample analyses to an outside laboratory may be required. If so, ENERGY LABORATORIES will utilize its
branch laboratories or qualified contract laboratories for this service. Any such laboratories will be indicated within the
Laboratory Analytical Report.
BRANCH LABORATORY LOCATIONS
eli-b -Energy Laboratories, Inc. -Billings, MT
eli-g -Energy Laboratories, Inc. -Gillette, WY
eli-h -Energy Laboratories, Inc. -Helena, MT
eli-r -Energy Laboratories, Inc. -Rapid City, SO
eli-t -Energy Laboratories, Inc. -College Station, TX
CERTIFICATIONS:
USEPA: WY00002, Radiochemical WY00937; FL-DOH NELAC: E87641, Radiochemical E871 017; California: 02118CA;
Oregon: WY200001; Utah: 3072350515; Virginia: 00057; Washington: C1903
ISO 17025 DISCLAIMER:
The results of this Analytical Report relate only to the items submitted for analysiS.
ENERGY LABORATORIES, INC. -CASPER,WY certifies that certain method selections contained in this report meet
requirements as set forth by the above accrediting authorities. Some results requested by the client may not be covered
under these certifications. All analysis data to be submitted for regulatory enforcement should be certified in the sample
state of origin . Please verify ELI's certification coverage by visiting www.energylab.com
ELI appreciates the opportunity to provide you with this analytical service. For additional information and services visit our
web page www.energylab.com.
Page 2 of43
EI\ERGY
LABORATORIJO:S
www.energylab.com
Analytical Excsflsncs Sincs 1952
'Heiena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515
Giliette,WY866~686-7175 • Rapid City, SO 888-672-1225 • College Station, 1)( 888-690-2218
QA/QC Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: Annual Tails 2011
Analyte Count Result Units
Method: A2310 B
Sample 10: MBLK-1_110829
Acidity, Total as CaC03
Sample 10: LCS-1_110829
Acidity, Total as CaC03
Sample 10: C11081062-001AOUP
Acidity, Total as CaC03
/
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
Method Blank
NO mg/L
Laboratory Control Sample
1100 mg/L
Sample Duplicate
56700 mg/L
Report Date: 10/19/11
Work Order: C11 081 062
RL %REC Low Limit High Limit
Run: ACIDITY _110829A
5.0
Run: ACIDITY _110829A
5.0 110 80 120
Run: ACIDITY _110829A
5.0
NO -Not detected at the reporting limit.
RPO RPOLimlt Qual
Batch: 110829_1_ACID-W
08/29/11 08:04
5.7
08/29/11 08:08
08/29/11 08:17
20
. Page 21 of 43
EI\ERGY www.energylab.com <~,~; "i " "Helena, MTB77-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 I ' I ,..' . ~;', I .-", .
LABORATORIES ArJIl/yffcsf ExcsffsnC9 SInc9 11151 ,~, ',' 'Gill~~e, wv866-606-7175 • Rapid City, SD 880-672-1225 • College Station, TX 888-690-2218
OA/oe Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: Annual Tails 2011
Analyte
Method: A2320 B
Sample 10: MBLK
Alkalinity. Total as CaC03
Carbonate as C03
Bicarbonate as HC03
Count Result
3 Method Blank
ND
ND
2.30
Units
mg/L
mg/L
mg/L
Sample 10: LCS Laboratory Control Sample
Alkalinity. Total as CaC03 194 mg/L
Sample 10: C11081004·009AOUP 3 Sample Duplicate
Alkalinity. Total as CaC03 169 mg/L
Carbonate as C03 26.9 mg/L
Bicarbonate as HC03
Sample 10: C11081004-009AMS
Alkalinity. Total as CaC03
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
151 mg/L
Sample Matrix Spike
314 mg/L
Report Date:
Work Order:
RL %REC Low Limit High Limit RPO
Run: MANTECH_110826A
5.0
1.0
1.0
Run: MANTECH_110826A
5.0 96 90 110
Run: MANTECH 110826A -
5.0 4.5
5.0 3.5
5.0 7.3
Run: MANTECH_110826A
5.0 110 80 120
ND -Not detected at the reporting limit.
10/19/11
C11 081 062
RPOLimit Qual
Batch: R149901
08/26/11 12: 12
08/26/11 12:28
08/26/11 15:30
10
10
10
08/26/11 15:39
Page 22 of 43
EN:RGY www.energylab.com Helena, MT 877-472-0711 • Billings, MT 800-135-4489 • Casper, WY 888-235-0515
..ilill~t):e, 'tVy8G6~686-7115 • Rapid City, SD 888-612-1225 • College Station, TX 888-690-2218 LABORATORIES Anslytfcal Excs/lsneB Sines 1652
Client: Denison Mines USA Corp
Project: Annual Tails 2011
QA/Qe Summary Report
Prepared by Casper, WY Branch
Report Date: 10/19/11
Work Order: C11 081 062
Analyte Count Result Units RL %REC Low Limit High limit RPO RPOLimit Qual
Method: A2510 B
Sample 10: ICV2_110826_3
Conductivity @ 25 C
Method: A2510 B
Sample 10: MBLK1_110826_3
Conductivity @ 25 C
Sample 10: C11081062-008AOUP
Conductivity @ 25 C
Qualifiers:
RL -Analyte reporting limit.
MOC - Minimum detectable concentration
Initial Calibration Verification Standard
1380 umhos/cm 1.0 98
Method Blank
NO umhos/cm 1.0
Sample Duplicate
66500 umhos/cm 1.0
Analytical Run: ORION555A_11 0826C
08/26/11 14:47
90 110
Run: ORION555A_110826C
Run: ORION555A_110826C
0.2
08/26/11 14:43
08/26/11 15:16
10
NO -Not detected at the reporting limit.
page 23 of 43
EN:RGY
LABORATORIES
~?f www.energylab.com ~· .. ·~elena.MT877-472-0711 co Billings.MT 800-135-4489 • Casper, WY 888-235-0515 ~~ Ana/ytfcalExcsllsnCBSincs /952 j'!. ii~,.~: :'b'illette,WY 8~6-686-7175 • Rapid City, SD 888-612-1225 . College Station, TX 888-690-2218
QA/QC Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: Annual Tails 2011
Analyte Count Result
Method: A2540 C
Sample 10: MBLK1_
Solids, Total Dissolved TDS @ 180 C
Method Blank
ND
Units
mg/L
Sample 10: LCS1_ Laboratory Control Sample
Solids, Total Dissolved TDS @ 180 C 997 mg/L
Sample 10: C11081062-007AOUP Sample Duplicate
Solids, Total Dissolved TDS @ 180 C 86000 mg/L
Sample 10: C11081129-002AMS Sample Matrix Spike
Solids, Total Dissolved TDS @ 180 C 2220 mg/L
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
Report Date: 10/19/11
Work Order: C11 081 062
RL %REC Low Limit High Limit
Run: BAL-1_110830B
4
Run : BAL-1_110830B
10 100 90 110
Run: BAL-1 110830B
230
Run: BAL-1_110830B
10 100 90 110
ND -Not detected at the reporting limit.
RPO RPOLimit Qual
Batch: 110830_2_SLDS-TDS-W
08/30/11 15:49
0.2
08/30/11 15:49
08/30/11 15:52
10
08/30/11 15:54
. Page 24 of 43
EN:RGY www.energylab.com ." Helena,MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515
'Gillette, wY 8G6-686-7175 • Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218 L ABORATORIES Analytfcal £Xcal/sncs Slncs '952
Client: Denison Mines USA Corp
Project: Annual Tails 2011
. .. -, '.
QA/QC Summary Report
Prepared by Casper, WY Branch
Report Date: 10/19/11
Work Order: Cll 081 062
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual
Method: A4500-CI B
Sample 10: MBLK9-110831
Chloride
Sample 10: C11081062-002AMS
Chloride
Sample 10: C11081062-002AMSO
Chloride
Sample 10: LCS35-110831
Chloride
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
Method Blank
NO mg/L
Sample Matrix Spike
21100 mg/L
Sample Matrix Spike Duplicate
21100 mg/L
Laboratory Control Sample
3450 mg/L
0.7
1.0
1.0
1.0
Batch: 110831-CL-TTR-W
Run:TITRATION_110831B 08/31/1114:17
Run: TITRATION_110831 B 08/31/11 16:00
101 90 110
Run: TITRATION_110831 B
101 90 110 0.0
08/31/11 16:03
10
Run: TITRATION_110831 B 08/31 /11 16:05
97 90 110
NO -Not detected at the reporting limit.
Page 25 of 43 .
EN:RGY www.energylab.com . Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515
LABORATORIES Analytfcal Excsllsncs Slncs 1952 .·GiII~~e,Wy866-ii86-7i75 • Rapid City, SD 888-612-1225 . College Station, TX 888-690-2218
Client: Denison Mines USA Corp
Project: Annual Tails 2011
QA/QC Summary Report
Prepared by Casper, WY Branch
Report Date:
Work Order:
Analyte Count Result Units RL %REC Low Limit High Limit RPO
Method: A4500-F C
Sample 10: MBLK
Fluoride
Sample 10: LCS
Fluoride
Sample 10: C11081046-001AMS
Fluoride
Sample 10: C11081046-001AMSO
Fluoride
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
Method Blank
NO mg/L
Laboratory Control Sample
2.00 mg/L
Sample Matrix Spike
2.20 mg/L
Sample Matrix Spike Duplicate
2.20 mg/L
Run: MANTECH_110829A
0.05
Run: MANTECH_110829A
0.10 100 90 110
Run: MANTECH_ 110829A
0.10 97 80 120
Run: MANTECH 110829A -
0.10 97 80 120 0.0
NO -Not detected at the reporting limit.
10/19/11
C11 081 062
RPOLimit Qual
Batch: R149928
08/29/11 09:37
08/29/11 09:41
08/29/11 10:53
08/29/11 10:55
10
page 26 of43
EN:RGY I'N/W.energylab.com I .. :" '.. Helena, MT 877-472-0711 • Billings, MT 800-735-4489 . Casper, 'NY 888-235-0515
Analytfcal ExesllBncs Sincs 1952 :1 ,;,":' ~Gillett~, WY866-686-7175 • Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218 LABORATORIES
Client: Denison Mines USA Corp
Project: Annual Tails 2011
QA/QC Summary Report
Prepared by Casper, WY Branch
Report Date: 10/19/11
Work Order: C11 081 062
Analyte Count Result Units RL %REC Low Limit High Limit RPD RPOLimit Qual
Method: A4S00-H 8
Sample 10: ICV1_110826_3
pH
Method: A4S00-H 8
Sample 10: C11081062-008AOUP
pH
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
Initial Calibration Verification Standard
6.88 s.u. 0.010 100
Sample Duplicate
2.34 s.u. 0.010
98
Analytical Run: ORION555A_11 0826C
08/26/11 14:45
102
Batch: 110826_3_PH-W_555A-1
Run: OR ION555A_11 0826C 08/26/11 15: 16
0.4 3
NO -Not detected at the reporting limit.
Page 27 of 43
EI\ERGY www.energylab.com ~ "'~elena, MT 877-472-0711 • Billings, MT 800-135-4489 • Casper, !NY 888-235-0515 ),:l('·;I~iiletfe,WY866-6~6-7175 . Rapid City, SIJ888-672-1225 . CoilegeStation,lX 888-690-2218 LABORATORIES Analytical ExCBlIsnes SInes 1952
QA/Qe Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp Report Date: 10/19/11
Project: Annual Tails 2011 Work Order: C11 081 062
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual
Method: A4S00-NH3 G Batch: R149949
Sample 10: MBLK-1 Method Blank Run : TECHNICON_ll 0829A 08/29/11 14:04
Nitrogen, Ammonia as N ND mg/L 0.02
Sample 10: LCS-2 Laboratory Control Sample Run : TECHNICON_ll 0829A 08/29/11 14:06
Nitrogen, Ammonia as N 2.03 mg/L 0.050 101 90 110
Sample 10: LFB-3 Laboratory Fortified Blank Run: TECHNICON_ll 0829A 08/29/11 14:08
Nitrogen, Ammonia as N 2.07 mg/L 0.050 106 80 120
Sample 10: C11081084-004AMS Sample Matrix Spike Run: TECHNICON_ll 0829A 08/29/11 14:59
Nitrogen, Ammonia as N 2.05 mg/L 0.050 105 80 120
Sample 10: C11081084-004AMSO Sample Matrix Spike Duplicate Run: TECHNICON_ll 0829A 08/29/11 15:01
Nitrogen, Ammonia as N 2.04 mg/L 0.050 104 80 120 0.5 10
Qualifiers:
RL -Analyte reporting limit. ND -Not detected at the reporting limit.
MDC -Minimum detectable concentration
Page 28 of 43
EN:RGY www.energylab.com Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515
. ~illette, Wy B66~686-7175 • Rapid City, SD 888-672-1225 • College Station, IX 888-690-2218 LASaRA! ORI ES AIIB/ytica/ Exc.l/.nc. Sinc. 1952
QA/QC Summary Report ·
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: Annual Tails 2011
Analyte Count Result Units
Method: A4S00-S04 E
Sample 10: MBLK-1_
Sulfate
Sample 10: LCS2l_
Sulfate
Sample 10: Cll09032S-00SAMS
Sulfate
Sample 10: Cll09032S-00SAMSO
Sulfate
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
Method Blank
ND mg/L
Laboratory Control Sample
5060 mg/L
Sample Matrix Spike
721 mg/L
Sample Matrix Spike Duplicate
724 mg/L
Report Date: 10/19/11
Work Order: C11 081 062
RL %REC Low Limit High limit RPO RPOLimit Qual
Batch: 110916_1_S04-TURB-W
Run: TURB-2_110916A 09/16/1110:43
0.8
Run: TURB-2_110916A 09/16/1111:19
100 105 90 110
Run: TURB-2_110916A 09/16/11 15:28
10 94 90 110
Run: TURB-2_110916A 09/16/11 15:35
10 95 90 110 0.4 10
ND -Not detected at the reporting limit.
Page 29 of 43
-----.~ ~ EN:RGY
LABORATOr4:1 ES
www.energylab.com
Ana/ytfeal Exeal/sncs Slncs 1952
.' . Helena, MT 877 -472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515
"Giliette,'WY 86&-686-7175 • Rapid City, SD888-672-1225 • College Station, 1)( 888-690-2218 ;. . .,., .
QA/QC Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: Annual Tails 2011
Analyte Count Result Units
Method: E200.7
Sample 10: MB-110910A 5 Method Blank
Calcium NO mg/L
Iron NO mg/L
Magnesium NO mg/L
Potassium NO mg/L
Sodium NO mg/L
Sample 10: LFB-110910A 5 Laboratory Fortified Blank
Calcium 47.5 mg/L
Iron 0.928 mg/L
Magnesium 47.2 mg/L
Potassium 43.0 mg/L
Sodium 47.4 mg/L
Sample 10: C11081062-001BMS2 5 Sample Matrix Spike
Calcium 9720 mg/L
Iron 8730 mg/L
Magnesium 23100 mg/L
Potassium 12300 mg/L
Sodium 38300 mg/L
Sample 10: C11081062-001 BMSO 5 Sample Matrix Spike Duplicate
Calcium 9760 mg/L
Iron 9020 mg/L
Magnesium 23400 mg/L
Potassium 12400 mg/L
Sodium 38700 mg/L
Qualifiers:
RL -Analyte reporting limit.
NO -Not detected at the reporting limit.
Report Date: 10/19/11
Work Order: C11081062
RL %REC Low Limit High Limit RPO RPOLimit Qual
Batch: R150560
Run: ICP2-C_110912A 09/12/11 10:32
10
0.060
10
2.0
20
Run: ICP2-C_110912A 09/12/11 10:36
0.50 95 85 115
0.030 93 85 115
0.50 94 85 115
0.50 86 85 115
0.50 94 85 115
Run: ICP2-C_11 0912A 09/12/1 1 11 :44
24 90 70 130
0.24 70 130 A
9.7 86 70 130
9.4 77 70 130
38 87 70 130
Run: ICP2-C_110912A 09/12/11 11 :48
24 90 70 130 0.4 20
0.24 70 130 3.2 20 A
9.7 89 70 130 1.0 20
9.4 78 70 130 0.8 20
38 90 70 130 0.8 20
A -The analyte level was greater than four times the spike level. In
accordance with the method % recovery is not calculated.
MOC -Minimum detectable concentration
Page 30 of43
EN:RGY
LABORAl Or~IES
www.energylab.com
Analytical £Xcal/sncB Sincs 1952
cr:,J~;i: . ' . ',.Helena, MT B,77 -4 72-0711 • Billings, MT BOO-135-4489 • Casper, WY 888-235-0515 E~.~I ,,:Gillette, WYB66-~86-7115 • Rapid City, SD 888-612-1225 • College Station, lX 888-690-2218
QA/QC Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: Annual Tails 2011
Analyte Count Result Units
Method: E200.7
Sample 10: MB-110922A
Calcium
Magnesium
Potassium
Sodium
Sample 10: LFB-110922A
Calcium
Magnesium
Potassium
Sodium
Sample 10: C11 090828-001 BMS2
Calcium
Magnesium
Potassium
Sodium
Sample 10: C11090828-001BMSO
Calcium
Magnesium
Potassium
Sodium
Qualifiers:
RL -Analyte reporting limit.
4 Method Blank
NO mg/L
NO mg/L
NO mg/L
NO mg/L
4 Laboratory Fortified Blank
47.6 mg/L
46.5 mg/L
43.5 mg/L
45.4 mg/L
4 Sample Matrix Spike
123 mg/L
96.6 mg/L
116 mg/L
438 mg/L
4 Sample Matrix Spike Duplicate
120 mg/L
95.6 mg/L
116 mg/L
424 mg/L
MDC -Minimum detectable concentration
RL
10
10
2.0
20
0.50
0.50
0.50
0.50
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Report Date: 10/19/11
Work Order: C11 081 062
%REC Low Limit High Limit RPO RPOLimit Qual
Run: ICP2-C_110922A
Run: ICP2-C_1 10922A
95 85 115
93 85 115
87 85 115
91 85 115
Run: ICP2-C_110922A
93 70 130
93 70 130
79 70 130
91 70 130
Run: ICP2-C_110922A
91 70 130
92 70 130
79 70 130
77 70 130
2.0
1.0
0.2
3.2
Batch: R150998
09/22/11 15:01
09/22/11 15:05
09/23/11 09:03
09/23/11 09:07
20
20
20
20
NO -Not detected at the reporting limit.
Page 31 of 43
EI\ERGY www.energylab.com ~'':,:, Hele~a, MT 877-472-0711 • Billings, MT 800-135-4489 • Casper, WY 888-235-0515 1 ~7:'! " ,1 ,~ille~e, W(866-686-1175 • Rapid City, SD 888-612-1225 • College Station, TX 888-690-221 B LABORATORIES Analytica' hcsl/sacs Slncs 1952
QA/QC Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: Annual Tails 2011
Analyte Count Result Units
Method: E200.8
Sample 10: LRB
Tin
Zinc
Sample 10: LFB
Tin
Zinc
Sample 10: C11090695-030CMS4
Tin
Zinc
Sample 10: C11090695-030CMSO
Tin
Zinc
Method: E200.8
Sample 10: C11090638-002BMS4
Beryllium
Sample 10: C11090638-002BMSO
Beryllium
Sample 10: LRB
Beryllium
Sample 10: LFB
Beryllium
Method: E200.8
Sample 10: LRB
Copper
Vanadium
Sample 10: LFB
Copper
Vanadium
Sample 10: C11090996-003CMS4
Copper
Vanadium
Sample 10: C11090996-003CMSO
Copper
Vanadium
Qualifiers:
RL -Analyte reporting limit.
2
2
2
2
2
2
2
2
MDC -Minimum detectable concentration
Method Blank
NO mg/L
NO mg/L
Laboratory Fortified Blank
0.0509 mg/L
0.0512 mg/L
Sample Matrix Spike
0.0501 mg/L
0.0507 mg/L
Sample Matrix Spike Duplicate
0.0515 mg/L
0.0508 mg/L
Sample Matrix Spike
0.051 mg/L
Sample Matrix Spike Duplicate
0.047 mg/L
Method Blank
NO mg/L
Laboratory Fortified Blank
0.0498 mg/L
Method Blank
NO mg/L
NO mg/L
Laboratory Fortified Blank
0.0492 mg/L
0.0497 mg/L
Sample Matrix Spike
0.0568 mg/L
0.0666 mg/L
Sample Matrix Spike Duplicate
0.0547 mg/L
0.0645 mg/L
Report Date: 10/19/11
Work Order: C11 081 062
RL %REC Low Limit High Limit RPO RPOLimit Qual
0.10
0.010
0.0010
0.0010
0.0010
0.010
0.0010
0.010
0.0010
0.0010
0.0020
0.0010
0.010
0.010
0.0010
0.0010
0.010
0.0010
0.010
0.0010
102
102
100
101
103
101
102
94
100
98
99
108
109
104
105
Run: ICPMS2-C_110921A
Run: ICPMS2-C_110921A
85 115
85 115
Run: ICPMS2-C_11 0921 A
70 130
70 130
Run: ICPMS2-C_110921A
70 130
70 130
Run : ICPMS2-C_11 0922A
70 130
Run: ICPMS2-C_110922A
70 130
Run: ICPMS2-C_110922A
Run: ICPMS2-C_11 0922A
85 115
Run: ICPMS2-C_1 11010A
Run: ICPMS2-C_111010A
85 115
85 115
Run: ICPMS2-C_111010A
70 130
70 130
Run : ICPMS2-C_111010A
70 130
70 130
NO -Not detected at the reporting limit.
2.8
0.3
8.6
3.9
3.3
Batch: R150906
09/21/11 13:41
09/21/11 13:44
09/22/11 02:33
09/22/11 02:36
20
20
Batch: R150935
09/22/11 13:25
09/22/11 13:28
20
09/22/11 15:45
09/22/11 15 :48
Batch: R151789
10/10/11 12:35
10/10/11 12:42
10/11 /11 04:37
10/11 /11 04:44
20
20
Page 32 of43
EI\ERGY
LABORArORJES
www.energylab.com
Anslytlca/ £Xcsl/sncs Sines 1952
Heiena, MT 877·472·0711 • Billings, MT 800·735·4489 . Casper, WY 888·235·0515
,Gillette, WY 866-686-7175 • Rapid City, SD 888-612-1225 • College Station, lX 888-690-2218
QA/QC Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: Annual Tails 2011
Report Date: 10/19/11
Work Order: C11 081 062
Analyte
Method: E200.8
Sample 10: LRB
Beryllium
Zinc
Count Result Units
2 Method Blank
NO mg/L
NO mg/L
Sample 10: LFB 2 Laboratory Fortified Blank
Beryllium 0.0530 mg/L
Zinc 0.0560 mg/L
Sample 10: C11100289-006AMS4 2 Sample Matrix Spike
Beryllium 0.050 mg/L
Zinc 0.058 mg/L
Sample 10: C11100289-006AMSO 2 Sample Matrix Spike Duplicate
RL %REC Low Limit High limit
0.0020
0.010
0.0010
0.0010
0.0010
0.010
106
111
100
104
Run: ICPMS2-C_111017A
Run: ICPMS2-C_111017A
85 115
85 115
Run: ICPMS2-C_111017A
70 130
70 130
Run: ICPMS2-C_111017A
Beryllium 0.052 mg/L 0.0010 103 70 130
Zinc 0.059 mg/L 0.010 107 70 130
Qualifiers:
RL -Analyte reporting limit. NO -Not detected at the reporting limit.
MDC -Minimum detectable concentration
RPO RPOLimit Qual
3.4
2.7
Batch: R152077
10/17/11 23:00
10/17/11 23:06
10/18/11 12:18
10/18/11 12:25
20
20
Page 33 of 43
~~~c.---------------------------------------------EN:RGY www.energylab.com , Helena, MT 877-472-0711 .. Billings, MT 800-735-4489 • Casper, WY888-235-0515 ,,:Gili~ti:e, WY8GG-il~6-7175 • Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218 LABORATOI~IES Analytical ExcsllsncB Sincs 1952
QA/QC Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: Annual Tails 2011
Analyte Count
Method: E200.8
Result Units
Sample 10: C11081062-004BMS4
Arsenic
17 Sample Matrix Spike
Beryllium
Cadmium
Chromium
Cobalt
Copper
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Uranium
Vanadium
Zinc
108 mg/L
2,02 mg/L
5.46 mg/L
9,64 mg/L
32,8 mg/L
268 mg/L
17.3
181
0.265
36,3
53,5
7,37
0.950
3.18
214
873
272
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
Sample 10: C11081062-004BMSO 17 Sample Matrix Spike Duplicate
Arsenic 106 mg/L
Beryllium 1.85 mg/L
Cadmium
Chromium
Cobalt
Copper
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Uranium
Vanadium
Zinc
4.94
9.52
30.1
265
15.9
166
0.265
32.9
53.0
7.34
0.976
2.94
197
860
270
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
Sample 10: LRB
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
17 Method Blank
Copper
Lead
Qualifiers:
RL -Analyte reporting limit.
ND -Not detected at the reporting limit.
S -Spike recovery outside of advisory limits.
ND mg/L
ND mg/L
ND
ND
ND
ND
ND
mg/L
mg/L
mg/L
mg/L
mg/L
Report Date: 10/19/11
Work Order: C 11 081 062
RL %REC Low Limit High Limit
0.0021
0.010
0.010
0.050
0.010
0.010
0.050
0.010
0.0012
0.10
0,050
0,0024
0.010
0.10
0.00039
0.10
0.010
0.0021
0.010
0.010
0.050
0.010
0.010
0.050
0.010
0,0012
0.10
0.050
0.0024
0.010
0.10
0.00039
0.10
0.010
0.0050
0.0020
0.0030
0.020
0.010
0,010
0.0010
72
131
150
100
116
73
111
65
110
145
100
115
76
101
Run: ICPMS4-C_11 0829A
70 130
70 130
70 130
70 130
70 130
70 130
70
70
70
70
70
70
70
70
70
70
70
130
130
130
130
130
130
130
130
130
130
130
Run: ICPMS4-C_11 0829A
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70 130
70
70
70
70
70
70
130
130
130
130
130
130
Run: ICPMS4-C_110829A
RPO RPOLimit Qual
2.2
8.6
10
1.2
8.3
1.2
8.0
8.6
0.3
9.9
1.0
0.5
2.6
7.6
7.9
1.4
0.7
Batch: R149965A
08/29/11 15:37
A
S
S
A
A
A
A
A
A
A
A
A
08/29/11 15:41
20 A
20 S
20
20 S
20 A
20 A
20 A
20 A
20
20 A
20 A
20
20
20
20
20
20
A
A
A
08/29/11 12:30
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 34 of 43
)'\I:;~t;\;'<,i,l, .'. Ueiens,. MT 877-472-0711 • Billings, MT 800~735-4489 • Casper, WY 888-235-0515
u. ", ,",Gillette, WV 866-686-7175 • Rapid City, SO 888-672-1225 • College Station, TX 888-690-2218 EN:RGY
LABORATORIES
www.energylab.com
Analytical Excs/lsncB Sincs /952
QA/QC Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp Report Date: 10/19/11
Project: Annual Tails 2011 Work Order: C11081062
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual
Method: E200.8 Batch: R149965A
Sample 10: LRB 17 Method Blank Run: ICPMS4-C_ll0829A 08/29/11 12:30
Manganese ND mg/L 0,010
Mercury ND mg/L 0,0010
Molybdenum ND mg/L 0,010
Nickel ND mg/L 0,020
Selenium ND mg/L 0,0050
Silver ND mg/L 0,010
Thallium ND mg/L 0,0010
Uranium ND mg/L 0,00040
Vanadium ND mg/L 0,010
Zinc ND mg/L 0,010
Sample 10: LFB 17 Laboratory Fortified Blank Run: ICPMS4-C_ll 0829A 08/29/11 12:35
Arsenic 0,0552 mg/L 0,0010 110 85 115
Beryllium 0,0551 mg/L 0,0010 110 85 115
Cadmium 0,0547 mg/L 0,0010 109 85 115
Chromium 0,0534 mg/L 0,0010 107 85 115
Cobalt 0,0535 mg/L 0,0010 107 85 115
Copper 0,0544 mg/L 0,0010 109 85 115
Lead 0,0529 mg/L 0,0010 106 85 115
Manganese 0,0546 mg/L 0,0010 109 85 115
Mercury 0,00541 mg/L 0,0010 107 85 115
Molybdenum 0,0534 mg/L 0,0010 107 85 115
Nickel 0,0540 mg/L 0,0010 108 85 115
Selenium 0,0551 mg/L 0,0010 110 85 115
Silver 0,0210 mg/L 0,0010 105 85 115
Thallium 0,0528 mg/L 0,0010 106 85 115
Uranium 0,0523 mg/L 0,00030 105 85 115
Vanadium 0,0531 mg/L 0,0010 106 85 115
Zinc 0,0573 mg/L 0,0010 114 85 115
Method: E200.8 Batch: R151949A
Sample 10: LRB Method Blank Run: ICPMS4·C_lll013A 10/13/11 12:20
Zinc ND mg/L 0,010
Sample 10: LFB Laboratory Fortified Blank Run: ICPMS4·C_lll013A 10/13/11 12:25
Zinc 0,0549 mg/L 0,0010 109 85 115
Sample 10: C11091095-001 BMS4 Sample Matrix Spike Run: ICPMS4-C_lll013A 10/13/11 23:02
Zinc 0,268 mg/L 0.Q10 97 70 130
Sample 10: C11091095-001BMSO Sample Matrix Spike Duplicate Run : ICPMS4·C_lll013A 10/13/11 23:27
Zinc 0,270 mg/L 0,010 97 70 130 0,7 20
Qualifiers:
RL . Analyte reporting limit. ND -Not detected at the reporting limit.
MDC . Minimum detectable concentration
Page 35 of 43
EN:RGY www.energylab.com ~elena, MT 877-472-0711 • Billings, MT 800-735-4489 · Casper, WY 888-235-0515
Giilette, WY86S-.686-7175 • Rapid City, SD 888-672-1225 · CiJllegeStation, TX 888-690-2218 LABORA~ORJES Analytical Exesllsnc, Slncs /952
QA/QC Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: Annual Tails 2011
Analyte Count Result Units
Method: E353.2
Sample 10: MBLK-1
Nitrogen, Nitrate+Nitrite as N
Sample 10: LCS-2
Nitrogen, Nitrate+Nitrite as N
Sample 10: LFB-3
Nitrogen, Nitrate+Nitrite as N
Sample 10: C11090180-003CMS
Nitrogen, Nitrate+Nitrite as N
Sample 10: C11090180-003CMSO
Nitrogen, Nitrate+Nitrite as N
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
Method Blank
NO mg/L
Laboratory Control Sample
2.46 mg/L
Laboratory Fortified Blank
2.02 mg/L
Sample Matrix Spike
2.21 mg/L
Sample Matrix Spike Duplicate
2.17 mg/L
Report Date:
Work Order:
RL %REC Low Limit High Limit RPO
Run: TECHNICON_ll 090SA
0.06
Run: TECHNICON_ll 090SA
0.10 9S 90 110
Run: TECHNICON_ll 090SA
0.10 103 90 110
Run: TECHNICON_ll 090SA
0.10 107 90 110
Run: TECHNICON_ll 090SA
0.10 105 90 110 1.S
NO -Not detected at the reporting limit.
10/19/11
C11081062
RPOLimit Qual
Batch: R150333
09/07/11 12:47
09/07/11 12:50
09/07/11 12 :52
09/07/11 15:02
09/07/11 15:05
10
Page 36 of 43
EN:RGY
LABORATORIES
www.energylab.com
Analytical £Xeal/anc, Sines 1952
Helena, MfB77-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515
Jl1iipEe,WYS6B-~86-7175 . Rapid City, SD 888-672-1225 • CollegeSlalion, TX 888-690-2218
QA/QC Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: Annual Tails 2011
Analyte Count Result Units
Method: E900.1
Sample 10: MB-GA-0474
Gross Alpha minus Rn & U
3 Method Blank
-0.1 pCi/L
pCilL
pCi/L
Gross Alpha minus Rn & U Precision (±)
Gross Alpha minus Rn & U MOC
Sample 10: LCS-GA-0474
Gross Alpha minus Rn & U
Sample 10: C11081073-0010MS
Gross Alpha minus Rn & U
Sample 10: C11081073-0010MSO
Gross Alpha minus Rn & U
Qualifiers:
RL -Analyte reporting limit.
MOC -Minimum detectable concentration
0.3
0.6
Laboratory Control Sample
21.2 pCi/L
Sample Matrix Spike
56.8 pCi/L
Sample Matrix Spike Duplicate
59.3 pCi/L
Report Date: 10/19/11
Work Order: C 11081062
RL %REC Low Limit High Limit
Run: G542M_110907A
Run: G542M_110907A
91 70 130
Run: G542M 110907A
107 70 130
Run:G542M_110907A
113 70 130
NO -Not detected at the reporting limit.
RPO RPOLimit Qual
4.4
Batch: GA-0474
09/1 1/11 17:39
U
09/11/11 17:39
09/09/11 16:51
09/09/11 16:51
24.9
U -Not detected at minimum detectable concentration
Page 37 of 43
EN:RGY
LABORATORIES
www.energylab.com
Analytfc,' ExcBlfsnCB Sines 1952
; ,., . Heie~~, MT 877-472-0711 • Billings, MT 800-735-4489 . Casper, WY 888-235-0515 i' j:illette; ViV' 8667&86-7175 • Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218
QA/QC Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: Annual Tails 2011
Analyte Count
Method: SW8260B
Result Units
Sample 10: 090211_LCS_3 16 Laboratory Control Sample
Acetone 130 ug/L
Benzene 10 ug/L
Carbon tetrachloride 11 ug/L
Chloroform 11 ug/L
Chloromethane 9.0 ug/L
m+p-Xylenes 20 ug/L
Methyl ethyl ketone 120 ug/L
Methylene chloride 11 ug/L
Naphthalene 12 ug/L
o-Xylene 9.7 ug/L
Toluene 11 ug/L
Xylenes, Total 29 ug/L
Surr: 1,2-0ichlorobenzene-d4
Surr: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Sample 10: 090211_MBLK_5 16 Method Blank
Acetone NO ug/L
Benzene NO ug/L
Carbon tetrachloride NO ug/L
Chloroform NO ug/L
Chloromethane NO ug/L
m+p-Xylenes NO ug/L
Methyl ethyl ketone NO ug/L
Methylene chloride NO ug/L
Naphthalene NO ug/L
o-Xylene NO ug/L
Toluene NO ug/L
Xylenes, Total NO ug/L
Surr: 1,2-0ichlorobenzene-d4
Surr: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: T oluene-d8
Sample 10: C11090091-001AMS 16 Sample Matrix Spike
Acetone 2100 ug/L
Benzene 200 ug/L
Carbon tetrachloride 200 ug/L
Chloroform 200 ug/L
Chloromethane 150 ug/L
m+p-Xylenes 360 ug/L
Methyl ethyl ketone 2100 ug/L
Methylene chloride 190 ug/L
Naphthalene 200 ug/L
Qualifiers:
RL -Analyte reporting limit.
MOC -Minimum detectable concentration
RL
20
1.0
1.0
1.0
1.0
1.0
20
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
20
1.0
1.0
1.0
1.0
1.0
20
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
200
10
10
10
10
10
200
10
10
Report Date: 10/19/11
Work Order: C 11 081 062
%REC Low Limit High Limit RPO RPOLimit Qual
Batch: R150187
Run : SATURNCA_110902B 09/02/11 14:48
130 70 130
104 70 130
108 70 130
108 70 130
90 70 130
98 70 130
120 70 130
107 70 130
123 70 130
97 70 130
111 70 130
98 70 130
103 80 120
101 70 130
103 80 130
90 80 120
Run: SATURNCA_110902B 09/02/11 16:01
96 80 120
98 70 130
93 80 120
90 80 120
Run: SATURNCA_ 110902B 09/02/11 22:25
105 70 130
102 70 130
102 70 130
100 70 130
77 70 130
91 70 130
107 70 130
97 70 130
102 70 130
NO -Not detected at the reporting limit.
Page 38 of43
EN:RGY
LABORAT ORIES
~~ l'M'W.energylab.com ~'''' : ·H~lena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 ~ AII8/ytfcaIExc,IIB11csSlnc,'952 );1'" f:;;'~" 'Gille~e;'WY866·686-7175 · Rapid City, so 888-672-1225 • College Station, TX 888-690-2218
QA/QC Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp Report Date: 10/19/11
Project: Annual Tails 2011 Work Order: C11081062
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual
Method: SW8260B Batch: R150187
Sample 10: C11090091-001AMS 16 Sample Matrix Spike Run: SATURNCA_110902B 09/02/11 22:25
o-Xylene 180 ug/L 10 90 70 130
Toluene 210 ug/L 10 105 70 130
Xylenes, Total 540 ug/L 10 91 70 130
Surr: 1,2-Dichlorobenzene-d4 1.0 99 80 120
Surr: Dibromofluoromethane 1.0 97 70 130
Surr: p-Bromofluorobenzene 1.0 91 80 120
Surr: Toluene-d8 1.0 89 80 120
Sample 10: C11090091·001AMSO 16 Sample Matrix Spike Duplicate Run: SATURNCA_ 110902B 09/02/11 23:01
Acetone 2100 ug/L 200 106 70 130 0.8 20
Benzene 200 ug/L 10 100 70 130 1.2 20
Carbon tetrachloride 200 ug/L 10 100 70 130 2.0 20
Chloroform 200 ug/L 10 99 70 130 0.8 20
Chloromethane 160 ug/L 10 79 70 130 2.6 20
m+p-Xylenes 380 ug/L 10 94 70 130 3.7 20
Methyl ethyl ketone 2300 ug/L 200 115 70 130 7.6 20
Methylene chloride 200 ug/L 10 98 70 130 1.2 20
Naphthalene 210 ug/L 10 105 70 130 3.1 20
o-Xylene 190 ug/L 10 94 70 130 4.3 20
Toluene 210 ug/L 10 103 70 130 1.9 20
Xylenes, Total 560 ug/L 10 94 70 130 3.9 20
Surr: 1,2-Dichlorobenzene-d4 1.0 95 80 120 0.0 10
Surr: Dibromofluoromethane 1.0 98 70 130 0.0 10
Surr: p-Bromofluorobenzene 1.0 90 80 120 0.0 10
Surr: Toluene-d8 1.0 89 80 120 0.0 10
Qualifiers:
RL -Analyte reporting limit. ND -Not detected at the reporting limit.
MDC -Minimum detectable concentration
Page 39 of 43
EN:RGY:
LABORATOJ~IES
www.energylab.com
Analytical Exc8118nc8 Sincs '952
Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 i:.dill~tte, WY8G6~G86-7115 • Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218
QA/QC Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp Report Date: 10/19/11
Project: Annual Tails 2011 Work Order: C11081062
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual
Method: SW8260B Batch: R150257
Sample 10: 090611_LCS3 16 Laboratory Control Sample Run : SATURNCA_110906A 09/06/11 12:41
Acetone 120 ug/L 20 124 70 130
Benzene 10 ug/L 1.0 102 70 130
Carbon tetrachloride 10.0 ug/L 1.0 100 70 130
Chloroform 10 ug/L 1.0 101 70 130
Chloromethane 10 ug/L 1.0 102 70 130
m+p-Xylenes 19 ug/L 1.0 96 70 130
Methyl ethyl ketone 120 ug/L 20 116 70 130
Methylene chloride 10 ug/L 1.0 100 70 130
Naphthalene 11 ug/L 1.0 105 70 130
a-Xylene 9.0 ug/L 1.0 90 70 130
Toluene 10 ug/L 1.0 103 70 130
Xylenes, Total 28 ug/L 1.0 94 70 130
Surr: 1,2-0ichlorobenzene-d4 1.0 101 80 120
Surr: Oibromofluoromethane 1.0 96 70 130
Surr: p-Bromofluorobenzene 1.0 93 80 130
Surr: Toluene-d8 1.0 88 80 120
Sample 10: 090611_MBLK_6 16 Method Blank Run: SATURNCA_ 110906A 09/06/11 13:54
Acetone NO ug/L 20
Benzene NO ug/L 1.0
Carbon tetrachloride NO ug/L 1.0
Chloroform NO ug/L 1.0
Chloromethane NO ug/L 1.0
m+p-Xylenes NO ug/L 1.0
Methyl ethyl ketone NO ug/L 20
Methylene chloride NO ug/L 1.0
Naphthalene NO ug/L 1.0
o-Xylene NO ug/L 1.0
Toluene NO ug/L 1.0
Xylenes, Total NO ug/L 1.0
Surr: 1,2-0ichlorobenzene-d4 1.0 101 80 120
Surr: Oibromofluoromethane 1.0 98 70 130
Surr: p-Bromofluorobenzene 1.0 91 80 120
Surr: Toluene-d8 1.0 86 80 120
Sample 10: C11081189-001GMS 16 Sample Matrix Spike Run : SATURNCA_ 110906A 09/06/11 20:19
Acetone 2400 ug/L 200 120 70 130
Benzene 210 ug/L 10 104 70 130
Carbon tetrachloride 210 ug/L 10 104 70 130
Chloroform 210 ug/L 10 104 70 130
Chloromethane 210 ug/L 10 104 70 130
m+p-Xylenes 390 ug/L 10 98 70 130
Methyl ethyl ketone 2300 ug/L 200 114 70 130
Methylene chloride 210 ug/L 10 105 70 130
Naphthalene 220 ug/L 10 110 70 130
Qualifiers:
RL -Analyte reporting limit. NO -Not detected at the reporting limit.
MOC -Minimum detectable concentration
Page 40 of 43
www.energylab.com
Analytical Excsllsnc. Sine. t 952
. Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515
§illeJt~, WY 866-&86-7175 • Rapid City, SD 888-672-1225 · CollegeStalion, 1)( 888-690-2218 EN:RGY
LABORAT ORIES
QA/QC Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp Report Date: 10/19/11
Project: Annual Tails 2011 Work Order: C11081062
Analyte Count Result Units RL %REC Low LImit High Limit RPO RPOLimit Qual
Method: SW8260B Batch: R150257
Sample 10: C11081189-001GMS 16 Sample Matrix Spike Run: SATURNCA_110906A 09/06/11 20: 19
a-Xylene 190 ug/L 10 94 70 130
Toluene 220 ug/L 10 108 70 130
Xylenes, Total 580 ug/L 10 97 70 130
Surr: 1,2-Dichlorobenzene-d4 1.0 100 80 120
Surr: Dibromofluoromethane 1.0 97 70 130
Surr: p-Bromofluorobenzene 1.0 96 80 120
Surr: Toluene-d8 1.0 86 80 120
Sample 10: C11081189·001GMSO 16 Sample Matrix Spike Duplicate Run: SATURNCA_11 0906A 09/06/11 20:55
Acetone 2500 ug/L 200 126 70 130 4.9 20
Benzene 220 ug/L 10 108 70 130 3.4 20
Carbon tetrachloride 210 ug/L 10 107 70 130 2.6 20
Chloroform 210 ug/L 10 106 70 130 1.9 20
Chloromethane 210 ug/L 10 104 70 130 0.0 20
m+p-Xylenes 370 ug/L 10 93 70 130 5.2 20
Methyl ethyl ketone 2300 ug/L 200 114 70 130 0.0 20
Methylene chloride 210 ug/L 10 107 70 130 1.9 20
Naphthalene 230 ug/L 10 114 70 130 3.9 20
a-Xylene 180 ug/L 10 89 70 130 5.7 20
Toluene 220 ug/L 10 109 70 130 0.7 20
Xylenes, Total 550 ug/L 10 92 70 130 5.4 20
Surr: 1,2-Dichlorobenzene-d4 1.0 103 80 120 0.0 10
Surr: Dibromofluoromethane 1.0 98 70 130 0.0 10
Surr: p-Bromofluorobenzene 1.0 94 80 120 0.0 10
Surr: Toluene-d8 1.0 88 80 120 0.0 10
Qualifiers:
RL -Analyte reporting limit. ND -Not detected at the reporting limit.
MDC -Minimum detectable concentration
Page 41 of 43
EI\ERGY
LABORATORIES
www.energylab.com
Analytical Excallsncs Sincs 1952
~Blena, MTB77-472-0711 • Billings, MT 800-735-4489 . Casper, WY 888-235-0515
. jlillelte;WY 866-&8&-7175 • Rapid City, SO 888-672-1225 • College Stalion, TX 888-690-2218
Workorder Receipt Checklist
Denison Mines USA Corp
111111111111111111111111111111111111111111111111111111I
C11081062
Login completed by: Corinne Wagner
Reviewed by: BL2000\kschroeder
Reviewed Date: 8/30/2011
Shipping container/cooler in good condition?
Custody seals intact on shipping container/cooler?
Custody seals intact on sample bottles?
Chain of custody present?
Chain of custody signed when relinquished and received?
Chain of custody agrees with sample labels?
Samples in proper container/bottle?
Sample containers intact?
Sufficient sample volume for indicated test?
All samples received within holding time?
(Exclude analyses that are considered field parameters
such as pH, DO, Res CI, Sulfite, Ferrous Iron, etc.)
ContainerfTemp Blank temperature:
Water -VOA vials have zero headspace?
Water -pH acceptable upon receipt?
Contact and Corrective Action Comments:
None
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
1.8'C
Yes 0
Yes 0
Date Received: 8/26/2011
Received by: kg
Carrier Fed Ex
name:
No 0
No 0
No 0
No 0
No 0
No 0
NoO
No 0
No 0
No 0
No 0
NoO
Not Present 0
Not Present 0
Not Present 0
No VOA vials submitted 0
Not Applicable 0
Page 42 of 43 .
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Invoice Address~
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Contact Name: Phone/Fax:
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Invoice Contact & Phone:
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Email:
Purchase Order:
Page _,_ of _1_
EPA/State Compliance:
Yes ~ No 0
Sampler: (Please Print)
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Quote/Bottle Order: V'
Special ReporUFormats: :s: ~[1,W@l]® ~~@)@~ .1 Contact ELI prior to
RUSH sample submittal
Dow D EOO/EOT(Electronic Data) o POTWNVWTP Format:. ____ _ o State: ___ _ D LEVEL IV
o ~ ~O<J)~ ~co;g61 :u ._> 0 >--B(/)(/)ro~ c: 'U5t1» 0>= ~ Cl u>ooc _ <C (/)1--:i: o ~all c '-Q.j.s c:-;:::: ll~l,go
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Name, Location, Interval, etc. Date Time
c..~l\ \O~ G>-W ~ I )(I~
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3 f:,-W ~I~I')C
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Signature: -...;
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Signed I Sample Disposal: Return to Client: Lab Disposal:
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Received by (print): DatelTime:
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In certain circumstances, samples submitted to Energy Laboratories, Inc. may be subcontracted to other certified laboratories in order to complete the analysis requested.
This serves as notice of this possibility. All sub-contract data will be clearly notated on your analytical report.
Visit our web site at www.energylab.com for additional information, downloadable fee schedule, forms, and links.
Jo Ann Tischler
Denison Mines
1050 17th Street, # 950
American West Denver, CO 80265
ANA LYTICAL LABORATORIES
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
TEL: [phone]
RE: Annual Tailings 2011
Dear Jo Ann Tischler: Lab Set ID: 1108534
American West Analytical Laboratories received 9 sample(s) on 8/26/2011 for the analyses
presented in the following report.
All analyses were performed in accordance to The NELAC Institute protocols unless
noted otherwise. American West Analytical Laboratories is certified by The NELAC
Institute in Utah and Texas; and is state certified in Colorado, Idaho, and Missouri.
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, andlor
purging efficiency. The "Reporting Limit" found on the report is equivalent to the
practical quantitation 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.
QA Officer Thank You, F .1 Digitally signed by Kyle F. Gross Kyle
Gross
Approved by:
r .... ON: cn=Kyle F. Gross, o=AWAL,
ou=AWAL, email=kyle@awal-
labs.com, c=US
Date:-2011.09.09 16:13:18 ·06'00'
Laboratory Director or designee
Report Date: 9/9/2011 Page 1 of 47
All analyses applicable to the CWA, SDWA. and ReRA arc perfomlcd in accordance to NELAC prptocois. Pertinent sampling infom~alion is located on th.e attached COCo This report is provided for the exclusiye usc ofllle addressee. Privileges of
subsequent usc oflhe name of this comp''HlY or any member of its slafT, or reproduction of this report in connection with the advertisement, promotion or. sale DC any product OT 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 perfoTmance of inspection and/or analysis in good faith and according to the rules of the trade and of science.
SAMPLE SUMMARY
American West Client: Denison Mines Contact: Jo Ann Tischler
ANAI.YTICA L LABO RATORIES Project: Annual Tailings 20 II
Lab Set ID: 1108534
Date Received: 8/26/2011 1000h
Lab Sample ID Client Sample ID Date Collected Matrix Analysis
463 West 3600 South
1108534-001A Celli 812412011 1055h Aqueous VOA by GCIMS Method
Salt Lake City, UT 84115 8260CI5030C
1108534-00 I B CellI 812412011 1055h Aqueous SVOAs by GC/MS Method
8270D
1108534-002A Cell 2 8/2412011 1155h Aqueous VOA by GCIMS Method
Phone: (80l) 263-8686 8260CI5030C
Toll Free: [phone] 1108534-002B Cell 2 8/2412011 1155h Aqueous SVOAs by GC/MS Method
Fax: [phone] 1108534-003A Cell 3 812412011
8270D
0830h Aqueous VOA by GC/MS Method
e-mail: [e-mail] 8260CI5030C
1108534-003B Cell 3 8124/2011 0830h Aqueous SVOAs by GC/MS Method
web: www.awal-Iabs.com 8270D
1108534-004A Ce1l4A 8/2412011 1400h Aqueous VOA by GCIMS Method
8260CI5030C
1108534-004B Ce1l4A 8124/2011 1400h Aqueous SVOAs by GC/MS Method Kyle F. Gross 8270D
Laboratory Director l108534-005A Ce1l4a LDS 8124/2011 1415h Aqueous VOA by GCIMS Method
8260CI5030C
Jose Rocha 1108534-005B Ce1l4a LDS 8/24/2011 1415h Aqueous SVOAs by GCIMS Method
8270D
QA Officer 1108534-006A Cell4b 8124/2011 1445h Aqueous VOA by GCIMS Method
8260CI5030C
1108534-006B Ce1l4b 8124/2011 1445h Aqueous SVOAs by GC/MS Method
8270D
1108534-007 A Ce1l4b LDS 8/2512011 0800h Aqueous VOA by GCIMS Method
8260CI5030C
1108534-007B Ce1l4b LDS 812512011 0800h Aqueous SVOAs by GC/MS Method
8270D
1108534-008A Cell4a BC 8124/2011 1415h Aqueous VOA by GCIMS Method
8260CI5030C
1108534-008B Ce1l4a BC 812412011 1415h Aqueous SVOAs by GC/MS Method
8270D
1108534-009A Trip Blank 8124/2011 Aqueous VOA by GC/MS Method
8260CI5030C
Report Date: 9/9/2011 Page 2 of 47
All analyses appli<;a,ble to the CWA. SOW A, and ReRA are pcrfonncd in, accordance to NELAC protocols. Pertinent samplingjl)fonnation is located on the attached COCo This report js provided for the exclusive use oflhe addressee. Privil,cges of
subscqucnt'usc . .ofthc name of this company or any member of its staff, or reproduction of this report in connection with the aqvcrtiscmcnt. promotion or sale of any product or proce.sst or in connection with the Te-publication of Ihis rcpOl;1 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 trade and of science.
American West
ANALYT ICA l. LA BORATORI ES
463 West 3600 South
Salt Lake City, UT 84115
Phone: (80 I) 263-8686
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-Iabs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Sernivolatile Case Narrative
Client: Denison Mines
Contact: Jo Ann Tischler
Annual Tailings 2011
1108534
Project:
Lab Set ID:
Sample Receipt Information:
Date of Receipt:
Date(s) of Collection:
Sample Condition:
C-O-C Discrepancies:
Method:
Analysis:
8/26/2011
8/24/2011
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, with the
following exceptions: The MS and MSD percent recoveries were outside of control
limits and the RPDs were high on multiple analytes for sample 1108534-006B due
to sample matrix interference or non-homogeneity.
Surrogates: All surrogate recoveries were within established limits, with the
following exceptions: Surrogate recoveries for Nitrobenzene-d5 on sample
1108534-002B and 2-Fluorophenol on sample 1108564-007B were outside of
control limits. Repreparation and reanalysis yielded similar results indicating
matrix interference. The surrogate recoveries for 2-Fluorophenol on sample
1108534-006B its MS and MSD were outside of control limits indicating matrix
interference.
Corrective Action: None required.
Report Date: 9/9/2011 Page 3 of 47
All analyses applicable IQ the CWA, SDWA. af'!,d RCRA arc pcrfonncd in accordance to NELAC prot~cols. Pertinent sampling infonnation is IQcated on Ihc.a.ttachcd CDC. This report is provided for the exclusive I)SC of the addressee. Privileges of
subsequent usc of the name oflhis company .. or any member of its starr, or reproduction oflhis rcpo[l in connection with the advertisement, promotion or sl,l.lc of any product or process, or in connection with-the [e·publication of this report for any
purpose other than for the addressee will be granted only on contact. 111is company accepts no responsibility except for the due pcrfonnancc of inspection and/or analysis in good faith and according to the rules oflhe trade and of science_
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Volatile Case Narrative
Client: Denison Mines
Contact: Jo Ann Tischler
Annual Tailings 2011
1108534
Project:
Lab SetID:
Sample Receipt Information:
Date of Receipt:
Date(s) of Collection:
Sample Condition:
C-O-C Discrepancies:
Method:
Analysis:
8/26/2011
8/24/2011
Intact
None
SW -846 8260C/5030C
Tetrahydrofuran
General Set Comments: Tetrahydrofuran was observed on multiple samples above
reporting limits.
Holding Time and Preservation Requirements: All samples were received in appropriate
containers and properly preserved. The analysis and preparation of all samples were
performed within the method holding times following the methods stated on the analytical
reports.
Analytical QC Requirements: All instrument calibration and calibration check
requirements were met. All internal standard recoveries met method criterion.
Batch QC Requirements: MB, LCS, MS, MSD, RPD, and Surrogates:
Method Blanks (MBs): No target analytes were detected above reporting limits,
indicating that the procedure was free from contamination.
Laboratory Control Sample (LCSs): All LCS recoveries were within control
limits, indicating that the preparation and analysis were in control.
Matrix Spike 1 Matrix Spike Duplicate (MS/MSD): All percent recoveries and
RPDs (Relative Percent Differences) were inside established limits, indicating no
apparent matrix interferences.
Surrogates: All surrogate recoveries were within established limits.
Corrective Action: None required.
Report Date: 9/9/20 I I Page 4 of 47
All analyses applicab.lc to the f:,WA, SDWA, and ReRA are perfonl1cd in aC,cordance to NELAC protocols. Pertinent sampling information is located on the attached CDC. This report is p,Tovidcd for the exclusive usc of the addressee. Privilcg9s of
subsequent usc oClhe name of this company or any member ofils slaff, or reproduction oflhis report in connection with the adv<;JlisClllcnt, promotion or sale or any product or proccss •.. or in connection with the fe-publication of this report f9T any .
purpose other than for the addressee will be granted only on contact. lllis company accepts no responsibility except for the due pcrronnancc of inspeclion and/or analysis in good faith and according to the rules of the trade and of science.
ANALYTICAL LABORATOR IE S
Client: Denison Mines
Lab Set ID: 1108534
'. Project: Annual Tailings 2011
SampleID Analyte
LCS VOC 08261lB Tetrahydrofuran
LCS VOC 082611B SUIT: 1,2-Dich1oroethane-d4
LCS VOC 08261lB SUIT: 4-Bromofluorobenzene
LCS VOC 082611B SUIT: Dibromofluoromethane
LCS VOC 082611B SUIT: To1uene-d8
. LCS VOC 082711A Tetrahydrofuran
LCS VOC 082711A SUIT: 1,2-Dich1oroethane-d4
LCS VOC 082711A SUIT: 4-Bromofluorobenzene
LCS VOC 082711A SUIT: Dibromofluoromethane
LCS VOC 082711A SUIT: Toluene-d8
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone], Toll Free: [phone], Fax: [phone]
e-mail: [e-mail], web: www.awa1-1abs.com
Units
IlgIL
%REC
%REC
%REC
%REC
IlgIL
%REC
%REC
%REC
%REC
1)C SUMMARY REPORT
Amount
Method Result Spiked
SW8260C 15.9 20.00
SW8260C 43.8 50.00
SW8260C 53.2 50.00
SW8260C 49.8 50.00
SW8260C 50.5 50.00
SW8260C 18.9 20.00
SW8260C 54.2 50.00
SW8260C 49.2 50.00
SW8260C 51.5 50.00
SW8260C 48.4 50.00
Contact:
Dept:
QC Type:
Original
Jo Ann Tischler
MSVOA
LCS
Amount %REC Limits
0 79.7 43-146
87.7 69-132
106 85-118
99.6 80-120
101 81-120
0 94.4 43-146
108 69-132
98.3 85-118
103 80-120
96.8 81-120
RPD
%RPD Limit
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Qual Date Analyzed
8/26/2011 1748h
8/26/2011 1748h
8/26/2011 1748h
8/26/2011 1748h
8/26/2011 1748h
8/27/2011 1623h
8127/2011 1623h
8127/2011 1623h
8/27/2011 1623h
8/27/2011 1623h
Report Date: 9/9/2011 Page 38 of 47
All analyses applicable to the CWA, SDWA, and ReRA are performed in accordance to NELAC protocols. Pertinent sampling infonnation 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 of this report in connection with the advertisement, promotion or sale of any product or process, or in connection with the re-publication of this report for any purpose other than for the addressee will be granted only on contact. This company accepts no responsibility
except for the due performance of inspection andlor analysis in good faith and according to the rules of the trade and of science.
American West A.NALYTl C AL LABO RATORIES
. Client: Denison Mines
Lab Set ID: 1108534
Project: Annual Tailings 2011
Sample ID Analyte
MB VOC 082611B Tetrahydrofuran
.. MB VOC 082611B Surr: 1,2-Dichloroethane-d4
MB VOC 08261lB Surr: 4-Bromofluorobenzene
MB VOC 082611B Surr: Dibromofluoromethane
MB VOC 082611B Surr: Toluene-d8
MB VOC 082711A Tetrahydrofuran
MB VOC 082711A Surr: 1,2-Dichloroethane-d4
MB VOC 082711A Surr: 4-Bromofluorobenzene
MB VOC 082711A Surr: Dibromofluoromethane
MB VOC 082711A Surr: To1uene-d8
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone], Toll Free: [phone], Fax: [phone]
e-mail: [e-mail], web: www.awal-Iabs.com
Units
I!g/L
%REC
%REC
%REC
%REC
I!g/L
%REC
%REC
%REC
%REC
QC SUMMARY REPORT
Amount
Method Result Spiked
SW8260C < 2.00
SW8260C 46.3 50.00
SW8260C 56.6 50.00
SW8260C 50.3 50.00
SW8260C 52.l 50.00
SW8260C < 1.00
SW8260C 53.6 50.00
SW8260C 54.3 50.00
SW8260C 51.1 50.00
SW8260C 50.6 50.00
Contact:
Dept:
QC Type:
Original
Jo Ann Tischler
MSVOA
MBLK
Amount %REC Limits
92.6 69-132
113 85-118
101 80-120
104 81-120
107 69-132
109 85-118
102 80-120
101 81-120
RPD
%RPD Limit
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Qual Date Analyzed
8/2612011 1826h
8/26/2011 1826h
8/2612011 1826h
8/26/2011 1826h
8/2612011 1826h
8/27/2011 1604h
8/27/2011 1604h
8/27/2011 1604h
8/27/2011 1604h
8/27/2011 1604h
Report Date: 9/9/2011 Page 39 of 47
All analyses applicable to the CWA, SDWA, and RCRA are perfonned in accordance to NELAC protocols. Pertinent sampling infonnation is located on the attached COC. 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 of this report in connection with the advertisement, promotion or sale of any product or process, or in connection with the re-publication of this report for any purpose other than for the addressee will be granted only on contact. This company accepts no responsibility
except for the due performance of inspection and/or analysis in good faith and according to the rules of the trade and of science.
ANALYTICAL LABORATORIES
Client: Denison Mines
Lab Set ID: 1108534
Project: Annual Tailings 2011
. Sample ID Analyte
1108534-002AMS Tetrahydrofuran
1108534-002AMS SUIT: 1,2-Dichloroethane-d4
1108534-002AMS SUIT: 4-Bromofluorobenzene
1108534-002AMS Surr: Dibromofluoromethane
1108534-002AMS SUIT: Toluene-d8
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone], Toll Free: [phone], Fax: [phone]
e-mail: [e-mail], web: www.awal-labs.com
j)C SUMMARY REPORT
Contact:
Dept:
Jo Ann Tischler
MSVOA
QC Type: MS
Amount Original
Units Method Result Spiked Amount %REC Limits
Jlg/L SW8260C 193 200.0 0 96.6 43-146
%REC SW8260C 556 500.0 III 77-144
%REC SW8260C 478 500.0 95.6 80-123
%REC SW8260C 526 500.0 105 80-124
%REC SW8260C 484 500.0 96.7 80-125
RPD
%RPD Limit
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Qual Date Analyzed
8/27/2011 2036h
8/2712011 2036h
8/27/2011 2036h
8/27/2011 2036h
8/27/2011 2036h
Report Date: 9/9/2011 Page 40 of 47
All analyses applicable to tbe CWA. SDWA, and RCRA are performed 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 of this report in connection with the advertisement, promotion or sale of any product or process, or in connection with the re-publication of this report for any purpose other than for the addressee will be granted only on contact. This company accepts no responsibility
except for the due performance of inspection and/or analysis in good faith and according to the rules of the trade and of science.
ANA LY T ICAL LABOR ATOR IES
Client: Denison Mines
Lab Set ID: 1108534
Project: Annual Tailings 2011
SampleID Analyte
1108534-002AMSD Tetrahydrofuran
1108534-002AMSD SUIT: 1,2-Dichloroethane-d4
1108534-002AMSD SUIT: 4-Bromofluorobenzene
1108534-002AMSD Surr: Dibromofluoromethane
1108534-002AMSD Surr: Toluene-d8
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone], Toll Free: [phone], Fax: [phone]
e-mail: [e-mail], web: www.awal-labs.com
QC SUMMARY REPORT
Contact:
Dept:
Jo Ann Tischler
MSVOA
QC Type: MSD
Amount Original
Units Method Result Spiked Amount %REC Limits
~glL SW8260C 196 200.0 0 97.8 43-146
%REC SW8260C 548 500.0 110 77-144
%REC SW8260C 488 500.0 97.5 80-123
%REC SW8260C 518 500.0 104 80-124
%REC SW8260C 482 500.0 96.5 80-125
RPD
%RPD Limit
1.23 25
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Qual Date Analyzed
8/27/2011 2055h
8/27/2011 2055h
8/27/2011 2055h
8/27/2011 2055h
8/27/2011 2055h
Report Date: 919/2011 Page 41 of 47
All analyses applicable to the CWA, SDWA, and ReRA are performed in accordance to NELAC protocols. Pertinent sampling information is located on the attached COCo This report is provided for the exclusive use of the addressee. Privileges of subsequent use of the name afthis 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 fe-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 trade and of science.
ANALYTICAL LAB O RATORIES
Client: Denison Mines
Lab Set ID: 1108534
Project: Annual Tailings 2011
Sample ID
LCS-14151
LCS-14l51
LCS-14151
LCS-14151
LCS-14151
LCS-14151
LCS-14151
LCS-14151
LCS-14151
LCS-1M51
LCS-14151
LCS-14151
LCS-14151
LCS-14l51
. LCS-14151
LCS-14l51
. LCS-14151
LCS-14151
LCS-14151
LCS-14151
LCS-14151
LCS-14151
Analyte
1,2,4-Trichlorobenzene
1,4-Dichlorobenzene
2,4,6-Trichlorophenol
2,4-Dimethylphenol
2,4-Dinitrotoluene
2-Chloronaphthalene
2-Chlorophenol
4,6-Dinitro-2-methylphenol
4-Chloro-3-methylphenol
4-Nitrophenol
Acenaphthene
Benzo( a )pyrene
N-Nitrosodi-n-propylamine
Pentachlorophenol
Phenol
Pyrene
SUIT: 2,4,6-Tribromophenol
SUIT: 2-Fluorobiphenyl
SUIT: 2-Fluorophenol
SUIT: Nitrobenzene-d5
SUIT: Phenol-d6
SUIT: Terphenyl-dl4
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone], Toll Free: [phone], Fax: [phone]
e-mail: [e-mail], web: www.awal-labs.com
Units
).1g/L
).1g/L
).1gIL
).1g/L
).1gIL
).1gIL
).1gIL
).1gIL
).1g/L
).1gIL
).1g/L
).1g/L
).1gIL
).1gIL
).1gIL
).1gIL
%REC
%REC
%REC
%REC
%REC
%REC
QC SUMMARY REPORT
Method
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
Result
18.8
14.4
68.2
55.7
69.7
27.7
47.6
70.7
69.5
31.2
32.9
83 .6
49.1
62.9
29.9
73 .1
76.9
21.2
28.7
22.7
24.0
39.8
Amount
Spiked
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
40.00
80.00
40.00
80.00
40.00
Contact:
Dept:
QC Type:
Jo Ann Tischler
MSSV
LCS
Original
Amount %REC Limits
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
23.5
18.0
85.2
69.7
87.1
34.6
59.4
88.4
86.8
39.0
41.1
104
61.4
78.6
37.4
91.4
96.1
53.1
35.9
56.8
29.9
99.6
10-104
10-118
17-119
10-131
42-219
23-126
15-128
30-198
29-148
10-157
20-116
10-221
20-148
21-153
10-131
37-150
10-165
32-128
10-121
10-127
10-124
51-221
%RPD
RPD
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Limit Qual Date Analyzed
917120 II 1643h
917120 II 1643h
91712011 1643h
91712011 1643h
91712011 1643h
91712011 1643h
91712011 1643h
91712011 1643h
91712011 1643h
91712011 1643h
91712011 1643h
91712011 1643h
91712011 1643h
91712011 1643h
91712011 1643h
91712011 1643h
91712011 1643h
917120 II 1643h
91712011 1643h
91712011 1643h
91712011 1643h
91712011 1643h
Report Date: 919/2011 Page 42 of 47
All analyses applicable to the CWA, SDWA, and RCRA are performed 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 of this report in connection with the advertisement, promotion or sale of any product or process, or in connection with the re-publication of this report for any purpose other than for the addressee will be granted only on contact. This company accepts no responsibility
except for the due performance of inspection andlor analysis in good faith and according to the rules of the trade and of science.
American West
ANA LYTICAL LABORATORIE S
Client: Denison Mines
Lab Set ID: 1108534
Project: Annual Tailings 2011
Sample ID Analyte
MB-14151 1,2,4-Trichlorobenzene
MB-14151 1,2-Dich1orobenzene
MB-14151 l,3-Dichlorobenzene
MB-14151 1,4-Dichlorobenzene
MB-14151 1-Methylnaphthalene
MB-14151 2,4,5-Trichlorophenol
MB-14151 2,4,6-Trichlorophenol
MB-14151 2,4-Dich1orophenol
MB-14151 2,4-Dimethylpheno1
MB-14151 2,4-Dinitrophenol
. MB-14151 2,4-Dinitroto1uene
MB-14151 2,6-Dinitrotoluene
MB-14151 2-Chloronaphthalene
MB-14151 2-Chlorophenol
MB-14151 2-Methylnaphtha1ene
MB-14151 2-Methy1phenol
MB-14151 2-Nitropheno1
MB-14151 3&4-Methylphenol
MB-14151 3,3' -Dichlorobenzidine
MB-14151 4,6-Dinitro-2-methylphenol
MB-14151 4-Bromopheny1 phenyl ether
MB-14151 4-Chloro-3-methylphenol
MB-14151 4-Chlorophenyl phenyl ether
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone], Toll Free: [phone], Fax: [phone]
Units
/!g/L
/!glL
Ilg/L
/!g/L
/!g/L
Ilg/L
/!g/L
Ilg/L
/!g/L
/!g/L
IlglL
/!g/L
/!g/L
/!g/L
/!glL
/!g/L
IlglL
/!glL
/!g/L
/!g/L
/!g/L
/!g/L
/!g/L
e-mail: [e-mail], web: www.awal-labs.com
QC SUMMARY REPORT
Contact:
Dept:
Jo Ann Tischler
MSSV
QC Type: MBLK
Amount Original
Method Result Spiked Amount %REC Limits
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
%RPD
RPD
Limit
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Qual Date Analyzed
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 l6l6h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
Report Date: 9/9/2011 Page 43 of47
All analyses applicable to the CWA, SDWA, and ReRA are perfonned in accordance to NELAC protocols. Pertinent sampling infomation is located on the attached COCo This report is provided for the exclusive use of the addressee. Privileges of subsequent use of the name oftbis 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.
American West
ANA LYTICAL LABORATOR I ES
Client: Denison Mines
Lab Set ID: 1108534
Project: Annual Tailings 2011
SampleID Analyte
MB-14151 4-Nitrophenol
MB-14151 Acenaphthene
MB-14151 Acenaphthylene
MB-14151 Anthracene
MB-14151 Azobenzene
MB-14151 Benz(a)anthracene
.. MB-14151 Benzidine
MB-14151 Benzo(a)pyrene
MB-14151 Benzo(b )fluoranthene
MB-14151 Benzo(g,h, i)perylene
MB-14151 Benzo(k)fluoranthene
MB-14151 Bis(2-chloroethoxy)methane
MB-14151 Bis(2-chloroethyl) ether
MB-14151 Bis(2-chloroisopropyl) ether
MB-14151 Bis(2-ethylhexyl) phthalate
MB-14151 Butyl benzyl phthalate
MB-14151 Chrysene
MB-14151 Dibenz( a,h )anthracene
MB-14151 Diethyl phthalate
MB-14151 Dimethyl phthalate
MB-14151 Di-n-butyl phthalate
MB-14151 Di-n-octyl phthalate
MB-14151 Fluoranthene
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone], Toll Free: [phone], Fax: [phone]
e-mail: [e-mail], web: www.awal-Iabs.com
Units
flg/L
flgIL
flg/L
flg/L
flg/L
flg/L
flg/L
flg/L
flgIL
flg/L
flgIL
flglL
flg/L
flg/L
flg/L
flg/L
flg/L
flgIL
flgIL
flglL
flg/L
flg/L
flg/L
QC SUMMARY REPORT
Method Result
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
Amount
Spiked
Contact: Jo Ann Tischler
Dept: MSSV
QC Type: MBLK
Original
Amount %REC Limits %RPD
RPD
Limit
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Qual Date Analyzed
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
Report Date: 9/9/2011 Page 44 of4?
All analyses applicable to the CWA, SDW A, and ReRA 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 of this report in connection with the advertisement, promotion or sale of any product or process, or in connection with the re-publication of this report for any purpose other than for the addressee will be granted only on contact. This company accepts no responsibility
except for the due performance of inspection andlor analysis in good faith and according to the rules of the trade and of science.
American West
ANALY TICAL LABORATORI ES
Client: Denison Mines
Lab Set ID: 1108534
Project: Annual Tailings 2011
Sample ID Analyte
MB-14151 Fluorene
MB-14151 Hexach1orobenzene
,MB-14151 Hexach1orobutadiene
MB-14151 Hexachlorocyclopentadiene
MB-14151 Hexachloroethane
MB-14151 Indeno(1,2,3-cd)pyrene
MB-14151 Isophorone
MB-14151 Naphthalene
MB-14151 Nitrobenzene
MB-14151 N -Nitrosodimethylamine
MB-14151 N -Nitrosodiphenylamine
MB-14151 N-Nitrosodi-n-propylamine
MB-14151 Pentachlorophenol
MB-14151 Phenanthrene
MB-14151 Phenol
MB-14151 Pyrene
MB-14151 Pyridine
MB-14151 SUIT: 2,4,6-Tribromopheno1
MB-14151 SUIT: 2-F1uorobipheny1
MB-14151 SUIT: 2-F1uoropheno1
MB-14151 SUIT: Nitrobenzene-d5
MB-14151 SUIT: Pheno1-d6
MB-14151 SUIT: Terphenyl-d14
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone], Toll Free: [phone], Fax: [phone]
e-mail: [e-mail], web: www.awal-1abs.com
Units
llg/L
IlglL
llg/L
llg/L
llg/L
IlglL
IlglL
llg/L
IlglL
llg/L
llg/L
llg/L
llg/L
IlglL
IlglL
IlglL
llg/L
%REC
%REC
%REC
%REC
%REC
%REC
{)C SUMMARY REPORT
Amount
Method Result Spiked
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 83.1 80.00
SW8270D 20.4 40.00
SW8270D 29.2 80.00
SW8270D 23.1 40.00
SW8270D 24.9 80.00
SW8270D 39.3 40.00
Contact:
Dept:
QC Type:
Original
Jo Ann Tischler
MSSV
MBLK
Amount %REC Limits
104 10-165
51.1 18-113
36.5 10-121
57.7 10-127
31.2 10-124
98.4 28-163
%RPD
RPD
Limit
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Qual Date Analyzed
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 lo16h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
91712011 1616h
Report Date: 919/2011 Page 45 of47
All analyses applicable to the CWA, SDW A, and ReRA are perfonned in accordance to NELAC protocols. Pertinent sampling information is located on the attached COC. This report is provided for the exclusive use of the addressee. Privileges of 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 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 of the trade and of science.
American West
ANALYTICAL LABORATOR 1ES
Client: Denison Mines
Lab Set ID: 1108534 ...
Project: Annual Tailings 2011
Sample ID
II08534-006BMS
II08534-006BMS
1 I08534-006BMS
II08534-006BMS
II08534-006BMS
II08534-006BMS
1108534-006BMS
II08534-006BMS
II08534-006BMS
1108534-006BMS
II08534-006BMS
II08534-006BMS
1108534-006BMS
1108534-006BMS
1108534-006BMS
. 11 08534-006BMS
t 108534-006BMS
1108534-006BMS
1108534-006BMS
1108534-006BMS
1108534-006BMS
1108534-006BMS
Analyte
1,2,4-Trichlorobenzene
1,4-Dichlorobenzene
2,4,6-Trichlorophenol
2,4-Dimethylphenol
2,4-Dinitrotoluene
2-Chloronaphthalene
2-Chlorophenol
4,6-Dinitro-2-methylphenol
4-Chloro-3-methylphenol
4-Nitrophenol
Acenaphthene
Benzo(a)pyrene
N-Nitrosodi-n-propylarnine
Pentachlorophenol
Phenol
Pyrene
SUIT: 2,4,6-Tribromophenol
SUIT: 2-Fluorobiphenyl
SUIT: 2-Fluorophenol
SUIT: Nitrobenzene-d5
SUIT: Phenol-d6
SUIT: Terphenyl-d14
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone], Toll Free: [phone], Fax: [phone]
e-mail: [e-mail], web: www.awal-Iabs.com
Units
IlglL
IlglL
Ilg/L
Ilg/L
Ilg/L
fLg/L
Ilg/L
fLg/L
IlglL
Ilg/L
fLglL
Ilg/L
fLg/L
fLg/L
Ilg/L
Ilg/L
%REC
%REC
%REC
%REC
%REC
%REC
~c SUMMARY REPORT
Method
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
Result
11 .8
5.67
30.3
7.9
59.6
31.4
15.2
23.8
< 10.0
< 10.0
36.6
64.8
40.9
13.6
13.0
72.0
41.4
14.7
6.12
15.9
72.7
40.0
Amount
Spiked
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
40.00
80.00
40.00
80.00
40.00
Contact:
Dept:
QC Type:
Jo Ann Tischler
MSSV
MS
Original
Amount %REC Limits
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
14.7
7.09
37.9
9.88
74.4
39.2
19.0
29.7
o
o
45.7
81.0
51.1
17.0
16.2
90.0
51.7
36.7
7.65
39.6
90.9
99.9
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
J _ Matrix spike recovery indicates matrix interference. The method is in control as indicated by the Les.
S -Surrogate recoveries outside the control limits. MS samples yielded similar results indicating matrix interference.
%RPD
RPD
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Limit Qual Date Analyzed
S
91712011 2157h
91712011 2157h
91712011 2157h
91712011 2157h
91712011 2157h
91712011 2157h
91712011 2157h
91712011 2157h
91712011 2157h
91712011 2157h
91712011 2157h
91712011 2157h
91712011 2157h
91712011 2157h
91712011 2157h
91712011 2157h
91712011 2157h
91712011 2157h
91712011 2157h
91712011 2157h
91712011 2157h
91712011 2157h
Report Date: 919/2011 Page 46 of 47
All ~nalyses applicable to the CWA. SDW A, and ReRA are performed in accordance to NELAC protocols. Pertinent sampling information is located on the attached COC. This repon 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 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 and/or analysis in good faith and according to the rules of the trade and of science.
ANALYTICAL LABORATOR IE S
463 West 3600 South
Salt Lake City, UT 84115
Phone: [phone], Toll Free: [phone], Fax: [phone]
e-mail: [e-mail], web: www.awal-labs.com
QC SUMMARY REPORT
, Client: Denison Mines
Lab Set ID: 1108534
Contact:
Dept:
Jo Ann Tischler
MSSV
Project: Annual Tailings 2011
Sample ID
Il08534-006BMSD
l108534-006BMSD
1108534-006BMSD
1108534-006BMSD
1108534-006BMSD
1108534-006BMSD
1108534-006BMSD
l108534-006BMSD
1108534-006BMSD
1108534-006BMSD
1108534-006BMSD
, 11 08534-006BMSD
1108534-006BMSD
1108534-006BMSD
1108534-006BMSD
1108534-006BMSD
1108534-006BMSD
1108534-006BMSD
1108534-006BMSD
,1108534-006BMSD
1108534-006BMSD
1108534-006BMSD
Analyte
1,2,4-Trichlorobenzene
1,4-Dichlorobenzene
2,4,6-Trichlorophenol
2,4-Dimethylphenol
2,4-Dinitrotoluene
2-Chloronaphthalene
2-Chlorophenol
4,6-Dinitro-2-methylphenol
4-Chloro-3-methylphenol
4-Nitrophenol
Acenaphthene
Benzo( a )pyrene
N-Nitrosodi-n-propylamine
Pentachlorophenol
Phenol
Pyrene
SUIT: 2,4,6-Tribromophenol
SUIT: 2-Fluorobiphenyl
SUIT: 2-Fluorophenol
SUIT: Nitrobenzene-d5
SUIT: Phenol-d6
SUIT: Terphenyl-dl4
Units
Ilg/L
IlglL
Ilg/L
IlglL
Ilg/L
Ilg/L
Ilg/L
Ilg/L
Ilg/L
Ilg/L
IlglL
IlgiL
Ilg/L
Ilg/L
Ilg/L
Ilg/L
%REC
%REC
%REC
%REC
%REC
%REC
@ -High RPD due to suspected sample non-homogeneity or matrix interference.
Method
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
SW8270D
Result
13.8
6.14
24.7
8.21
59.5
33.0
15.6
23.8
< 10.0
6.33
36.9
66.6
42.3
5.61
13.4
73 .1
36.9
15.4
5.58
16.6
69.5
39.6
J _ Matrix spike recovery indicates matrix interference. The method is in control as indicated by the LeS.
Amount
Spiked
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
40.00
80.00
40.00
80.00
40.00
S -Surrogate recoveries outside the control limits. MS samples yielded similar results indicating matrix interference.
QC Type: MSD
Original
Amount %REC
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
17.3
7.68
30.9
10.3
74.3
41.3
19.5
29.8
o
7.91
46.1
83.2
52.9
7.01
16.7
91.3
46.1
38.6
6.98
4l.6
86.9
98.9
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
%RPD
15.9
7.96
20.3
3.85
0.l51
5.13
2.6
0.294
o
200
0.871
2.66
3.46
83.4
2.89
1.45
RPD
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Limit Qual Date Analyzed
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
l@
l@
S
91712011 2223h
91712011 2223h
91712011 2223h
91712011 2223h
91712011 2223h
91712011 2223h
91712011 2223h
91712011 2223h
91712011 2~23h
91712011 2223h
91712011 2223h
91712011 2223h
91712011 2223h
91712011 2223h
91712011 2223h
91712011 2223h
91712011 2223h
91712011 2223h
91712011 2223h
91712011 2223h
91712011 2223h
91712011 2223h
Report Date: 9/9/2011 Page 47 of47
All analyses applicable to the CWA, SDWA, and ReRA are performed in accordance to NELAC protocols. Pertinent sampling information is located on the attached COCo This report is provided for the exclusive use of the 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 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 andlor analysis in good faith and according to the rules of the trade and of science.
American West Analytical Laboratories
WORK ORDER Summary
Client:
Client ID:
Denison Mines
DENIOO Contact:
UL
Work Order: 1108534
Page 1 of2 8/291201 1
Jo Ann Tischler
Project: Annual Tailings 2011 QC Level: LEVEL III ------------W<::rTy-pe-:-------P-l:oject
Comments: No Hard Copies (UL). QC 3 & Summary_ EDD-CSV_ Report THF to 1 ).lg/L. Library search required for 4-chlorophenoL; -t£:>
Sample ID
1108534-001A
1108534-001B
1108534-002A
1108534-002B
1108534-003A
Client Sample ID
Celli
Cell 2
Cell 3
--~--.
1108534-003B
1108S34-004A
1108534-004B
1108534-00SA
1108534-00SB
1108534-006A
1108534-006B
1108534-007 A
1108534-007B
Ce1l4A
Ce1l 4aLDS
Ce1l4b
Ce1l4b LDS
Collected Date Received Date Date Due
8124/2011 10S5h 8/26/2011 1000h 919/2011
8/24/2011 1155h --------------------------
8/24/2011 0830h
8/24/2011 1400h
8/24/2011 1415h
8/24/2011 1445h
8/25/2011 0800h
Matrix Test Code Sel Storage
Aqueous 8260-W ~ VOCFridge 3 -----3510-SVOA-PR 0 Walkin-
Semi
8270-W ~ Walkin-
Semi
8260-W ~ VOCFridge
351O-SVOA-PR 0 Walkin-
Semi
8270-W ~ Walkin-
Semi
8260-W ~ VOCFridge --_ .. -
3510-SVOA-PR 0 Walkin-
Semi
8270-W ~ Walkin-
Semi
8260-W ~ VOCFridge
3510-SVOA-PR 0 Walkin-
Semi
8270-W ~ Walkin-
Semi
8260-W ~ VOCFridge
3510-SVOA-PR 0 Walkin-
Semi
8270-W ~ Walkin-
Semi
8260-W ~ VOCFridge
3510-SVOA-PR 0 Walkin-
Semi
8270-W ~! Walkin-
Semi
8260-W ~ VOCFridge
3S10-SVOA-PR 0 Walkin-
Semi
WORK ORDER Summary Work Order: 1108534
Client: Denison Mines Page 2 of2 8/29/201]
Sample ID Client Sample ID Collected Date Received Date Date Due Matrix Test Code Sel Storage
i 108534-007B Cell4b LDS 8/25/2011 0800h 8/26/2011 1000h 919/2011 Aqlleolls 8270-W ~ Walkill-3
Semi ._ .... __ .. _----_ .. ,
1108534-0081\ Cell4a BC 8/24/20 11 141511 8260-W ~ VOCFridge
"--'---"--'" -_._-----
1108534-00SB 3510-SVOA-PR I Walkin-1-' Semi
8270-W ~ Walkin-
Semi
1108534-009A Trip Blank 8/24/2011 8260-W ~ VOCFridge
OENISOJ)~~I Shee" 011
MINES
CHAIN OF CUSTODY
Samples Shipped to: American West Analytical Lab
463 West 3600 South
Contact: Ryan Palmer or David Turk
Ph: 435678 2221
Salt Lake City, Ut 84115 rpal [e-mail]
[e-mail]
Chain of Custody/Sampling Analysis Request
Project Samplers Name Samplers Signature
Annual Tails 2011 Tanner Holliday
:;l 1/ II! / ~. , aJl..M"(~ ifAtt-1-4"·...r\
.•.. )
Date Time
Sample 10 Collected Collected Laboratory Analysis Requested
Celli 8/24/2011 1055 THF,SVOC
Cell 2 8/24/2011 1155 THF,SVOC
Cell 3 8/24/2011 830 THF,SVOC
Cell4a 8/24/2011 1400 THF,SVOC
Cell4a LDS 8/24/2011 1415 THF,SVOC
Cell4b 8/24/2011 1445 THF,SVOC
Cell4b LDS 8/25/2011 800 THF,SVOC
Cell4a BC 8/24/2011 1415 THF,SVOC
Trip Blank 8/24/2011
Please notify Ryan Palmer or Tanner Holliday of Reciept tempature on these samples Immediately!
Thank you.
Relinquished By:(Signatu e)
::D 4IUWL » ' Date/Time Received By:(Signature) DatelTime
8/25/2011
1130
Relinquished By:(Signature) DatelTime DatelTime
i.~1
/'
-_._-----,------
Denison Mines
Annual Tailings -8270 Analyte List
8/5/2010
Samples Were: COC Tape Was:
~hippedBy: lhf5 Pre~nt on Outer Package
III Hand Delivered KYYes 0 No 0 N/A
o Ambient un~ken on Outer package
&fChilled Yes ONo ON/A .
Temperature \.~ °C MN1.'2Li" Present on Sample
Rec. Broken/Leaking .tsfYes ~ ON/A . DYes liN 0 DN/A
Notes: , S!;Y\,~\.. ~~ reee:\\i~ 'p-n:J~
-~fI \f' . ~l'N~ 1'<\R --if':. ~ Unbroken on sa~
DYes ONo /A
Properly Preserved Wyh ONo ON/A Notes:
Notes:
/
Rec. Within Hold I'!l.yes ONo
Notes:
Bottle Type Preservative All pHs OK
Ammonia pH <2 H2SO4
COD pH <2 H2SO4
Cyanide PH >12 NaOH
Metals pH <2HN03 /
N02 &N03 pH <2 H2S04 /
Nutrients pH <2 H2SO4 /'
O&G pH<2HCL /v
Phenols pH <2 H2SO4 /'
Sulfide pH> 9NaOH, ZnAC 1/
TKN pH <2 H2SO4 /'
TOC pH <2 H3P04 V
TP04 pH <2 H2SO4 /'
TPH pH <2 HCL V
/
/
/'
1/ '-
Procedure. 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
Lab SetID: 1\D9, 5~4-...
Container Type:
o A W AL Supplied Plastic
o A W AL Supplied Clear Glass
o A WAL Supplied Amber Glass /
o A WAL Supplied VOA/TOC%S
o Amber 0 Clear 0 Headspac 0 Headspace
o Non A W AL Supplied eentainer
~
Discrepancies Between Labels and COC
Notes:
.,..,
""jlD /
V
/
/
1)
2}
3)
4)
5)
If sample is not preserved properly list its extension and receiving pH in the appropriate column above
Flag eoe and notify client for further instructions
.6)
7)
Place client conversation on eoe
Samples may be adjusted at client reqiJest
",,\)1"'":
No. Rec. /
/
/
/
DYes 0No
TabD
Chemical and Radiological Summary Tables
CellI
Chemical and Radiological Characteristics
Constituent 1987 2003 2007 2008 2009 2010 2011 (Avg) (Avg)
Major Ions (mWI)
Carbonate <5 <1 ND ND <1 <1 <1
Bicarbonate <5 NA ND ND <1 <1 <1
Calcium 630 307 483.8 604 635 711 577
Chloride 8000 6728 37340 9830 20700 7440 33800
Fluoride <100 3005 31.72 0.3 0.4 28.4 69.2
Magnesium 7900 5988 21220 6550 16200 5410 14300
Nitrogen-Ammonia 7800 3353 10628 5250 15200 8120 12900
Nitrogen-Nitrate <100 41.8 269.4 64.9 142 58 212
Potassium NA 647 5698 1880 4140 1840 4510
Sodium 10000 8638 62600 13200 39000 16700 29500
Sulfate 190000 63667 287600 118000 232000 107000 182000
pH (s.u.) 0.70 1.88 0.80 1.53 1.15 2.73 2.23
TDS 120000 94700 357400 131000 140000 130000 216000
Conductivity (umhos/cm) NA NA NA NA 365000 110000 112000
Metals (uglI)
Arsenic 440000 121267 849000 271000 436000 74400 299000
Beryllium 780 475 2262 500 410 338 1270
Cadmium 6600 3990 29320 8790 9120 2940 13700
Chromium 13000 6365 29940 6760 18700 5620 22700
Cobalt 120000 NA 88240 23500 97500 16200 56000
Copper 740000 196667 881000 360000 168000 125000 483000
Iron 3400000 2820000 13480000 3280000 2390000 3400000 8940000
Lead <20000 3393 27420 11200 10600 9240 23600
Manganese 140000 162500 990200 206000 723000 173000 735000
Mercury NA NA ND ND 7.61 7.2 61.4
Molybdenum 240000 50550 415600 106000 142000 35300 235000
Nickel 370000 36950 40860 32000 156000 27500 43700
Selenium <20000 1862 15420 13000 14800 5220 11600
Silver <5000 NA 1559.2 449 558 155 1110
Thallium 45000 NA 407.8 165 387 193 560
Tin <5000 NA 6512 1240 2290 263 1500
Uranium 105000 134517 . 788600 416000 578000 159000 838000
Vanadium 280000 348000 2208200 1200000 773000 752000 2500000
Zinc 1300000 NA 642940 476000 229000 171000 398000
Radiolo~ics (pCiII)
Gross Alpha NA 169333 29380 21900 16500 11300 3610
VOCS (ug/L)
Acetone 35 NA 66.5 110 710 260 80
Benzene <5 NA ND ND <1 <1 <1
Carbon tetrachloride <5 NA ND ND <1 <1 <1
Chloroform 8 NA 6.7 6.6 16 4.9 13
Chloromethane NA NA ND 9.4 11 4.4 3.6
MEK NA NA ND ND 120 65 <1
Methylene Chloride 11 NA ND ND 2.0 <1 <1
Naphthalene <10000 NA <10 ND 1.1 5.4 2
Tetrahydrofuran NA NA 150 <20 <100 <10 <500
Toluene <5 NA ND ND <1 <1 <1
Xylenes <5 NA ND ND <1 <1 <1
SVOCS (uwL)
1,2,4-Trichlorobenzene NA NA NA NA <50 <10 <10
1,2-Dichlorobenzene NA NA NA NA <50 <10 <10
1,3-Dichlorobenzene NA NA NA NA <50 <10 <10
1,4-Dichlorobenzene NA NA NA NA <50 <10 <10
1-Methylnaphthalene NA NA NA NA <50 <10 <10
2,4,5-Trichlorophenol NA NA NA NA <50 <10 <10
2,4,6-Trichlorophenol NA NA NA NA <50 <10 <10
2,4-Dichlorophenol NA NA NA NA <50 <10 <10
2,4-Dimethylphenol NA NA NA NA . <50 <10 <10
Celll
Ch emlca I d R d" I I Ch an a looglca t "f arac ens ICS
Constituent 1987 2003 2007 2008 2009 2010 2011 (Avg) (Avg)
Major Ions (mWl)
2,4-Dinitrophenol NA NA NA NA <250 <20 <20
2,4-Dinitrotoluene NA NA NA NA <50 <10 <10
2,6-Dinitrotoluene NA NA NA NA <50 <10 <10
2-Chloronaphthalene NA NA NA NA <50 <10 <10
2-Chlorophenol NA NA NA NA <50 <10 <10
2-Methylnaphthalene NA NA NA NA <50 <10 <10
2-Methylphenol NA NA NA NA <50 <10 <10
2-Nitrophenol NA NA NA NA <50 <10 <10
3&4-Methylphenol NA NA NA NA <22 <10 <10
3,3' -Dichlorobenzidine NA NA NA NA <100 <10 <10
4,6-Dinitro-2-methylphenol NA NA NA NA <250 <10 <10
4-Bromophenyl phenyl ether NA NA NA NA <50 <10 <10
4-Chloro-3-methylphenol NA NA NA NA <50 <10 <10
4-Chlorophenyl phenyl ether NA NA NA NA <50 <10 <10
4-Nitrophenol NA NA NA NA <250 <10 <10
Acenaphthene NA NA NA NA <50 <10 <10
Acenaphthylene NA NA NA NA <50 <10 <10
Anthracene NA NA NA NA <50 <10 <10
Azobenzene NA NA NA NA <50 <10 <10
Benz(a)anthracene NA NA NA NA <50 <10 <10
Benzidine NA NA NA NA <100 <10 <10
Benzo(a)pyrene NA NA NA NA <50 <10 <10
Benzo(b )fluoranthene NA NA NA NA <50 <10 <10
Benzo(g,h,i)perylene NA NA NA NA <50 <10 <10
Benzo(k)fluoranthene NA NA NA NA <50 <10 <10
Bis(2-chloroethoxy)methane NA NA NA NA <50 <10 <10
Bis(2-chloroethyl) ether NA NA NA NA <50 <10 <10
Bis(2-chloroisopropyl) ether NA NA NA NA <50 <10 <10
Bis(2-ethylhexyl) phthalate NA NA NA NA <50 27 <10
Butyl benzyl phthalate NA NA NA NA <50 <10 <10
Chrysene NA NA NA NA <50 <10 <10
Dibenz(a,h)anthracene NA NA NA NA <50 <10 <10
Diethyl phthalate NA NA NA NA 170 <10 <10
Dimethyl phthalate NA NA NA NA <50 <10 <10
Di-n-butyl phthalate NA NA NA NA <50 <10 <10
Di-n-octyl phthalate NA NA NA NA <50 <10 <10
Fluoranthene NA NA NA NA <50 <10 <10
Fluorene NA NA NA NA <50 <10 <10
Hexachlorobenzene NA NA NA NA <50 <10 <10
Hexachlorobutadiene NA NA NA NA <50 <10 <10
Hexachlorocyc1opentadiene NA NA NA NA <50 <10 <10
Hexachloroethane NA NA NA NA <50 <10 <10
Indeno(I,2,3-cd)pyrene NA NA NA NA <50 <10 <10
Isophorone NA NA NA NA <50 <10 <10
Naphthalene NA NA NA NA <50 <10 <10
Nitrobenzene NA NA NA NA <50 <10 <10
N-Nitrosodimethylamine NA NA NA NA <50 <10 <10
N-Nitrosodi-n-propylamine NA NA NA NA <50 <10 <10
N-Nitrosodiphenylamine NA NA NA NA <50 <10 <10
Pentachlorophenol NA NA NA NA <250 <10 <10
Phenanthrene NA NA NA NA <50 <10 <10
Phenol NA NA NA NA <50 <10 <10
Pyrene NA NA NA NA <50 <10 <10
Pyridine NA NA NA NA <50 <10 <10
I Historic values reported for Gross Alpha from 1987 and 2003 are total gross alpha reported in pCiIL. All other gross
alpha data are reported as Gross Alp_ha minus Rn & U.
Cell 2 Slimes Drain
Ch emlca an d R d' I I Ch a 10 oglca t 'f arac ens lCS
Major Ions (mWI) 2007 2008 2009 2010 2011
Carbonate ND ND <1 <1 <1
Bicarbonate ND ND <1 <1 <1
Calcium 572 528 508 496 474
Chloride 3700 3860 2750 3510 3110
Fluoride 3.3 ND <0.1 2.4 2.1
Magnesium 4100 4030 3750 3790 3640
Nitrogen-Ammonia 4020 3620 3240 3820 2940
Nitrogen-Nitrate 30.9 20.3 38 126 38
Potassium 636 560 689 620 636
Sodium 4050 4600 4410 4770 4590
Sulfate 60600 74000 72200 63700 64200
pH (s.u.) 3.18 3.24 3.11 3.39 3.18
TDS 84300 74600 84100 79900 80200
Conductivity (umbos/cm) NA NA 88700 60200 51400
Metals (ugll)
Arsenic 26900 19300 14200 23500 17800
Beryllium 298 245 271 267 231
Cadmium 5500 5840 5510 6370 5580
Chromium 2750 2450 2230 2510 2380
Cobalt 46500 43800 38700 48200 42500
Copper 106000 154000 170000 148000 132000
Iron 2770000 3310000 3230000 2720000 2960000
Lead 566 528 403 586 501
Manganese 117000 130000 160000 144000 123000
Mercury ND ND <0.5 <4 11.1
Molybdenum 4080 3190 2240 4630 3510
Nickel 123000 122000 108000 126000 111000
Selenium 422 647 726 844 714
Silver ND ND <10 <10 <10
Thallium 361 703 368 470 371
Tin ND ND <100 <100 <100
Uranium 23000 29200 29900 30600 27100
Vanadium 409000 463000 536000 469000 454000
Zinc 767000 750000 582000 652000 574000
Radiologies (pCiIl)
Gross Alpha 1290 1570 1580 1000 1230
VOCS (uglL) '<
Acetone 550 410 570 460 690
Benzene ND ND <1 <1 <1
Carbon tetrachloride ND ND <1 <1 <1
Chloroform 20 17 16 15 20
Chloromethane 1.8 ND 2.2 2.3 2
MEK 65 ND 100 83 130
Methylene Chloride ND ND <1 <1 <1
Naphthalene 14 7.5 16 17 13
Tetrahydrofuran 15 NA <100 <10 <10
Toluene 1.7 ND 2.6 2.6 3
Xylenes 1.5 ND <1 2.2 <1
SY~CS (uglL) , , ,
1,2,4-Trichlorobenzene NA NA <11 <10 <10
1,2-Dichlorobenzene NA NA <11 <10 <10
1,3-Dichlorobenzene NA NA <11 <10 <10
1,4-Dichlorobenzene NA NA <11 <10 <10
1-Methylnaphthalene NA NA <11 <10 <10
2,4,5-Trichlorophenol NA NA <11 <10 <10
2,4,6-Trichlorophenol NA NA <11 <10 <10
2,4-Dichlorophenol NA NA <11 <10 <10
2,4-Dimethylphenol NA NA <51 <20 <20
2,4-Dinitrophenol NA NA <11 <10 <10
2,4-Dinitrotoluene NA NA <11 <10 <10
2,6-Dinitrotoluene NA NA <11 . <10 <10
Cell 2 Slimes Drain
Ch emIca I d R d' I I Ch an a 10 ogIca t 'f arac ens ICS
Major Ions (mg/I) 2007 2008 2009 2010 2011
2-Chloronaphthalene NA NA <11 <10 <10
2-Chlorophenol NA NA <11 <10 <10
2-Methylnaphthalene NA NA <11 <10 <10
2-MethYlPhenol NA NA <11 <10 <10
2-Nitrophenol NA NA <11 <10 <10
3&4-Methylphenol NA NA <21 <10 <10
3,3' -Dichlorobenzidine NA NA <51 <10 <10
4,6-Dinitro-2-methylphenol NA NA <11 <10 <10
4-Bromophenyl phenyl ether NA NA <11 <10 <10
4-Chloro-3-methylphenol NA NA <11 <10 <10
4-Chlorophenyl phenyl ether NA NA <51 <10 <10
4-Nitrophenol NA NA <11 <10 <10
Acenaphthene NA NA <11 <10 <10
Acenaphthylene NA NA <11 <10 <10
Anthracene NA NA <11 <10 <10
Azobenzene NA NA <11 <10 <10
Benz(a)anthracene NA NA <21 <10 <10
Benzidine NA NA <11 <10 <10
Benzo(a)pyrene NA NA <11 <10 <10
Benzo(b )fluoranthene NA NA <11 <10 <10
Benzo(g,h,i)perylene NA NA <11 <10 <10
Benzo(k)fluoranthene NA NA <11 <10 <10
Bis(2-chloroethoxy)methane NA NA <11 <10 <10
Bis(2-chloroethyl) ether NA NA <11 <10 <10
Bis(2-chloroisopropyl) ether NA NA <11 <10 <10
Bis(2-ethylhexyl) phthalate NA NA <11 <10 <10
Butyl benzyl phthalate NA NA <11 <10 <10
Chrysene NA NA <11 <10 <10
Dibenz(a,h)anthracene NA NA <11 <10 <10
Diethyl phthalate NA NA <11 <10 <10
Dimethyl phthalate NA NA <11 <10 <10
Di-n-butyl phthalate NA NA <11 <10 <10
Di-n-octyl phthalate NA NA <11 <10 <10
Fluoranthene NA NA <11 <10 <10
Fluorene NA NA <11 <10 <10
Hexachlorobenzene NA NA <11 <10 <10
Hexachlorobutadiene NA NA <11 <10 <10
Hexachlorocyclopentadiene NA NA <11 <10 <10
Hexachloroethane NA NA <11 <10 <10
Indeno(1,2,3 -cd)pyrene NA NA <11 <10 <10
Isophorone NA NA <11 <10 <10
Naphthalene NA NA <11 <10 <10
Nitrobenzene NA NA <11 <10 <10
N-Nitrosodimethylamine NA NA <11 <10 <10
N-Nitrosodi-n-propylamine NA NA <11 <10 <10
N-Nitrosodiphenylamine NA NA <51 <10 <10
Pentachlorophenol NA NA <11 <10 <10
Phenanthrene NA NA <11 <10 <10
Phenol NA NA <11 10.7 <10
Pyrene NA NA <11 <10 <10
Pyridine NA NA <11 <10 <10
Cell 2 LDS
Ch emlca an a looglca I d R d· I I Ch t arac erIstIcs
Constituent 2009 2010 2011
Major Ions (mgll)
Carbonate <1 <1 Not Sampled
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 (urnhos/cm) 11000 6500
Metals (u£ll)
Arsenic <5 <5 Not Sampled
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
Radiologies (pCill)
Gross Alpha 13.5 7.3 Not Sampled
VOCS (ugfL)
Acetone <20 <20 Not Sampled
Benzene <1 <1
Carbon tetrachloride <1 <1
Chloroform <1 <1
Chloromethane <1 <1
MEK <20 <20
Methylene Chloride <1 <1
Naphthalene <1 <1
Tetrahydrofuran <100 6.13
Toluene <1 <1
Xylenes <1 <1
SVOCS (ug/L)
1,2,4-Trichlorobenzene NA <10 Not Sampled
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-TIichl orophenol NA <10
2,4-Dichlorophenol NA <10
2,4-Dimethylphenol NA <10
2,4-Dinitrophenol NA <20
Cell 2 LDS
Ch emlca an a 10 o~lca d R d' I I Ch aractenstics
Constituent 2009 2010 2011 ·
Major Ions (mWI)
2,4-Dinitrotoluene NA <10 Not Sampled
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 <10
4-Chloro-3-methylphenol NA <10
4-Chlorophenyl phenyl ether NA <10
4-Nitrophenol NA <10
Acenaphthene NA <10
Acenaphthylene NA <10
Anthracene NA <10
Azobenzene NA <10
Benz(a)anthracene NA <10
Benzidine NA <10
Benzo(a)pyrene NA <10
Benzo(b )f1uoranthene NA <10
Benzo(g,h,i)perylene NA <10
Benzo(k)f1uoranthene 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
Dimethyl 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-Nitrosodimethylamine NA <10
N -Nitrosodi -n -propylamine NA <10
N -Nitrosodiphenylamine NA <10
Pentachlorophenol NA <10
Phenanthrene NA <10
Phenol NA <10
Pyrene NA <10
Pyridine NA <10
Cell 3
Chemical and Radiological Characteristics
Constituent 1987 2003 2007 2008 2009 2010 2011 (Ave) (Ave)
Major Ions (.,.gII)
Carbonate NA <1 ND ND <1 <1 <1
Bicarbonate <5 NA ND ND <1 <1 <1
Calcium 300 418 887 478 628 560 200
Chloride NA 2460 15965 15400 17200 3470 40400
Fluoride <100 667 42.8 1.4 0.6 54.8 64.1
Magnesium 5400 3386 15767 13100 17100 2500 22100
Nitrogen-Ammonia 13900 1302 13867 9010 21600 2650 6470
Nitrogen-Nitrate <100 20 102 44 142 26 261
Potassium NA 254 6657 4760 3820 782 2590
Sodium 5900 3198 25583 22900 28600 5620 47900
Sulfate 180000 33400 173667 167000 214000 40400 197000
pH (s.u.) 0.82 2.28 1.60 1.79 1.4 2.18 1.27
TDS 189000 51633 228500 193000 243000 56200 296000
Conductivity (umbos/cm) NA NA NA NA 304000 59800 86400
Metals (ugll)
Arsenic 163000 32867 256500 489000 ND 52900 263000
Beryllium 540 430 913 840 905 206 1570
Cadmium 2600 1958 9260 15400 ND 1960 12200
Chromium 12000 3742 14883 12800 ND 3360 22800
Cobalt 48000 NA 82783 57000 ND 13000 76000
Copper 360000 87333 505000 345000 ND 89000 768000
Iron 2100000 1278333 4874500 4400000 5970000 1460000 1.02E+7
Lead <20000 2507 9647 16900 ND 17200 16700
Manganese 82000 144000 496833 313000 ND 101000 587000
Mercury ND NA ND 16 ND <4 30.9
Molybdenum 52000 12250 122167 209000 14 21300 96200
Nickel 170000 20917 131833 241000 ND 23800 75800
Selenium <2000 910 5856 10200 ND 3080 6900
Silver <2500 NA 305 1010 ND 101 792
Thallium 4700 NA 446 1200 ND 190 518
Tin NA NA 1090 1070 ND 155 325
Uranium 118000 67833 332333 636000 3690 180000 458000
Vanadium 210000 158333 935000 1130000 ND 692000 2370000
Zinc 590000 NA 748833 515000 ND 134000 726000
Radiologies (pCiIl)
Gross Alpha NA 101583 16533 21700 17000 4030 11100
VOCS (ug/L)
Acetone 28 NA 80 100 67 37 330
Benzene <5 NA ND ND <1 <1 <1
Carbon tetrachloride <5 NA ND ND <1 <1 <1
Chloroform 6 NA ND 11 4.2 2.6 31
Chloromethane NA NA ND ND 1.4 1.8 3.5
MEK NA NA ND ND <1 <1 67
Methylene Chloride 10 NA ND ND <1 <1 7.4
Naphthalene <10000 NA ND <10 <1 2.1 1.2
Tetrahydrofuran NA NA 150 <20 <100 <10 <10
Toluene <5 NA ND ND <1 <1 <1
Xylenes <5 NA ND ND <1 <1 <1
SY~CS (uglL)
1,2,4-Trichlorobenzene NA NA NA NA <11 <10 <10
1,2-Dichlorobenzene NA NA NA NA <11 <10 <10
1,3-Dichlorobenzene NA NA NA NA <11 <10 <10
l,4-Dichlorobenzene NA NA NA NA <11 <10 <10
1-Methylnaphthalene NA NA NA NA <11 <10 <10
2,4,5-Trichlorophenol NA NA NA NA <11 <10 <10
2,4,6-Trichlorophenol NA NA NA NA <11 <10 <10
2,4-Dichlorophenol NA NA NA NA <II <10 <10
2,4-Dimethylphenol NA NA NA NA <11 <10 <10
2,4-Dinitrophenol NA NA NA NA <53 <20 <20
2,4-Dinitrotoluene NA NA NA NA <11 <10 <10
2,6-Dinitrotoluene NA NA NA NA <11 <10 <10 .-
Cell 3
Ch emlca an a looglca d R dO I I Ch t ° f arac ens ICS
Constituent 1987 2003 2007 2008 2009 2010 2011 (Av~) (Av~)
Major Ions (mg/l)
2-Chloronaphthalene NA NA NA NA <11 <10 <10
2-Chlorophenol NA NA NA NA <11 <10 <10
2-Methylnaphthalene NA NA NA NA <11 <10 <10
2-Methylphenol NA NA NA NA <11 <10 <10
2-Nitrophenol NA NA NA NA <11 <10 <10
3&4-Methylphenol NA NA NA NA <11 <10 <10
3,3 '-Dichlorobenzidine NA NA NA NA <21 <10 <10
4,6-Dinitro-2-methylphenol NA NA NA NA <53 <10 <10
4-Bromophenyl phenyl ether NA NA NA NA <11 <10 <10
4-Chloro-3-methylphenol NA NA NA NA <11 <10 <10
4-Chlorophenyl phenyl ether NA NA NA NA <11 <10 <10
4-Nitrophenol NA NA NA NA <53 <10 <10
Acenaphthene NA NA NA NA <11 <10 <10
Acenaphthylene NA NA NA NA <11 <10 <10
Anthracene NA NA NA NA <11 <10 <10
Azobenzene NA NA NA NA <11 <10 <10
Benz(a)anthracene NA NA NA NA <11 <10 <10
Benzidine NA NA NA NA <21 <10 <10
Benzo(a)pyrene NA NA NA NA <11 <10 <10
Benzo(b )fluoranthene NA NA NA NA <11 <10 <10
Benzo(g,h,i)perylene NA NA NA NA <11 <10 <10
Benzo(k)fluoranthene NA NA NA NA <11 <10 <10
Bis(2-chloroethoxy)methane NA NA NA NA <11 <10 <10
Bis(2-chloroethyl) ether NA NA NA NA <11 <10 <10
Bis(2-chloroisopropyl) ether NA NA NA NA <11 <10 <10
Bis(2-ethylhexyl) phthalate NA NA NA NA <11 10.6 <10
Butyl benzyl phthalate NA NA NA NA <11 <10 <10
Chrysene NA NA NA NA <11 <10 <10
Dibenz( a,h)anthracene NA NA NA NA <11 <10 <10
Diethyl phthalate NA NA NA NA <11 <10 <10
Dimethyl phthalate NA NA NA NA <11 <10 <10
Di-n-butyl phthalate NA NA NA NA <11 <10 <10
Di-n-octyl phthalate NA NA NA NA <11 <10 <10
Fluoranthene NA NA NA NA <11 <10 <10
Fluorene NA NA NA NA <11 <10 <10
Hexachlorobenzene NA NA NA NA <11 <10 <10
Hexachlorobutadiene NA NA NA NA <11 <10 <10
Hexachlorocyclopentadiene NA NA NA NA <11 <10 <10
Hexachloroethane NA NA NA NA <11 <10 <10
Indeno(I,2,3-cd)pyrene NA NA NA NA <11 <10 <10
Isophorone NA NA NA NA <11 <10 <10
Naphthalene NA NA NA NA <11 <10 <10
Nitrobenzene NA NA NA NA <11 <10 <10
N -Nitrosodimeth ylamine NA NA NA NA <11 <10 <10
N-Nitrosodi-n-propylamine NA NA NA NA <11 <10 <10
N-Nitrosodiphenylamine NA NA NA NA <11 <10 <10
Pentachlorophenol NA NA NA NA <53 <10 <10
Phenanthrene NA NA NA NA <11 <10 <10
Phenol NA NA NA NA <11 <10 <10
Pyrene NA NA NA NA <11 <10 <10
Pyridine NA NA NA NA <11 <10 <10
I Historic values reported for Gross Alpha from 1987 and 2003 are total gross alpha reported in pCiIL. All other gross
alpha data are reported as Gross Alpha minus Rn & U.
Cell4A
Ch emlca an a 10 oglca d R dO I I Ch t ° f arac erls ICS
Constituent 2009 2010 2011
Major Ions (mW))
Carbonate <1 <1 <1
Bicarbonate <1 <1 <1
Calcium 627 598 558
Chloride 4650 7350 5870
Fluoride 0.3 21.6 30.6
Magnesium 3250 4940 4720
Nitrogen-Ammonia 3140 5230 4930
Nitrogen-Nitrate 28 52 44
Potassium 980 1440 1450
Sodium 5980 11300 11400
Sulfate 67600 87100 267000
pH (s.u.) 1.40 1.99 1.73
TDS 81400 107000 108000
Conductivity (umhos/cm) 131000 101000 82100
Metals (ugll)
Arsenic 626000 109000 86600
Beryllium 296 215 323
Cadmium 1920 3670 2190
Chromium 3220 7500 5900
Cobalt 9440 26500 22500
Copper 99200 168000 181000
Iron 2360000 2920000 3390000
Lead 5360 11800 11000
Manganese 178000 209000 131000
Mercury 1.19 <4 15.2
Molybdenum 24300 43800 24200
Nickel 17100 40900 43500
Selenium 4620 5810 4460
Silver 78 193 216
Thallium 162 350 410
Tin 257 378 319
Uranium 118000 217000 153000
Vanadium 918000 1090000 730000
Zinc 142000 224000 286000
Radiolo~ics (pCiIl)
Gross Alpha 8910 3400 8290
VOCS (ugIL)
Acetone 60 55 100
Benzene <1 <1 <1
Carbon tetrachloride <1 <1 <1
Chloroform 4.0 8.5 10
Chloromethane 3.4 5.5 7.9
MEK <1 <1 <1
Methylene Chloride <1 <1 <1
Naphthalene 1.8 <1 <1
Tetrahydrofuran <100 <10 <10
Toluene <1 <1 <1
Xylenes <1 <1 <1
SVOCS (oWL)
1,2,4-Trichlorobenzene <11 <10 <10
1,2-Dichlorobenzene <11 <10 <10
1,3-Dichlorobenzene <11 <10 <10
l,4-Dichlorobenzene <11 <10 <10
1-Methylnaphthalene <11 <10 <10
2,4,5-Trichlorophenol <11 <10 <10
2,4,6-Trichlorophenol <11 <10 <10
2,4-Dichlorophenol <11 <10 <10
2,4-Di methylphenol <11 <10 <10
Cell4A
Ch emlca an a 10 oglca d R dO I I Ch t ° f arac ens ICS
Constituent 2009 2010 2011
Major Ions (mWl)
2,4-Dinitrophenol <53 <20 <20
2,4-Dinitrotoluene <11 <10 <10
2,6-Dinitrotoluene <11 <10 <10
2-Chloronaphthalene <11 <10 <10
2-Chlorophenol <11 <10 <10
2-Methylnaphthalene <11 <10 <10
2-Methylphenol <11 <10 <10
2-Nitrophenol <11 <10 <10
3&4-Methylphenol <11 <10 <10
3,3 '-Dichlorobenzidine <21 <10 <10
4,6-Dinitro-2-methylphenol <53 <10 <10
4-Bromophenyl phenyl ether <11 <10 <10
4-Chloro-3-meth yl phenol <11 <10 <10
4-Chlorophenyl phenyl ether <11 <10 <10
4-Nitrophenol <53 <10 <10
Acenaphthene <11 <10 <10
Acenaphthylene <11 <10 <10
Anthracene <11 <10 <10
Azobenzene <11 <10 <10
Benz(a)anthracene <11 <10 <10
Benzidine <21 <10 <10
Benzo(a)pyrene <11 <10 <10
Benzo(b )fluoranthene <11 <10 <10
Benzo(g,h,i)perylene <11 <10 <10
Benzo(k)fluoranthene <11 <10 <10
Bis(2-chloroethoxy)methane <11 <10 <10
Bis(2-chloroethyl) ether <11 <10 <10
Bis(2-chloroisopropyl) ether <11 <10 <10
Bis(2-ethylhexyl) phthalate <11 19.6 <10
Butyl benzyl phthalate <11 <10 <10
Chrysene <11 <10 <10
Dibenz(a,h)anthracene <11 <10 <10
Diethyl phthalate <11 <10 <10
Dimethyl phthalate <11 <10 <10
Di-n-butyl phthalate <11 <10 <10
Di-n-octyl phthalate <11 <10 <10
Fluoranthene <11 <10 <10
Fluorene <11 <10 <10
Hexachlorobenzene <11 <10 <10
Hexachlorobutadiene <11 <10 <10
Hexachlorocyclopentadiene <11 <10 <10
Hexachloroethane <11 <10 <10
Indeno(l,2,3-cd)pyrene <11 <10 <10
Isophorone <11 <10 <10
Naphthalene <11 <10 <10
Nitrobenzene <11 <10 <10
N-Nitrosodimethylamine <11 <10 <10
N-Nitrosodi-n-propylamine <11 <10 <10
N-Nitrosodiphenylamine <11 <10 <10
Pentachlorophenol <53 <10 <10
Phenanthrene <11 <10 <10
Phenol <11 <10 <10
Pyrene <11 <10 <10
Pyridine <11 <10 <10
Cell4A LDS
Ch emlca an a looglca d R d· I I Ch t . f arac ens ICS
Constituent 2009 2010 2011
Major Ions (mgIl)
Carbonate <1 <1 <1
Bicarbonate <1 <1 <1
Calcium 558 474 470
Chloride 7570 4670 6040
Fluoride 0.7 39.4 46
Magnesium 6390 3240 5100
Nitrogen-Ammonia 4480 2290 3480
Nitrogen-Nitrate 69 183 94
Potassium 1960 934 1500
Sodium 12600 6700 11000
Sulfate 92400 41700 77400
pH (s.u.) 1.98 2.53 2.32
TDS 117000 56900 93800
Conductivity (umhos/cm) 150000 49000 66600
Metals (uwl)
Arsenic 133000 54000 74700
Beryllium 536 295 367
Cadmium 4010 2650 3160
Chromium 9140 3890 5940
Cobalt 37300 15200 21700
Copper 222000 116000 150000
Iron 3940000 1420000 2530000
Lead 5270 3400 4520
Manganese 389000 157000 207000
Mercu!}' 2.66 6.2 14.7
Molybdenum 49200 23900 29300
Nickel 43900 23900 29600
Selenium 5250 2820 3780
Silver 204 62 127
Thallium 252 194 290
Tin 504 180 119
Uranium 284000 145000 168000
Vanadium 1150000 518000 770000
Zinc 298000 152000 204000
Radiologies (pCi/l)
Gross Alpha 7020 3230 7440
VOCS (uWL)
Acetone 240 130 120
Benzene <1 <1 <1
Carbon tetrachloride <1 <1 <1
Chloroform 23 52 26
Chloromethane 7.9 13 3.8
MEK 78 50 82
Methylene Chloride <1 <1 <1
Naphthalene <1 1.5 <1
Tetrahydrofuran 140 158 102
Toluene <1 <1 <1
Xylenes <1 <1 <1
Sy~CS (ug/L)
1,2,4-Trichlorobenzene <11 <10 <10
1,2-Diehl orobenzene <11 <10 <10
1,3-Dichlorobenzene <11 <10 <10
1,4-Dichlorobenzene <11 <10 <10
I-Methylnaphthalene <11 <10 <10
2,4,5-Trichlorophenol <11 <10 <10
2,4,6-Trichlorophenol <11 <10 <10
2,4-Diehlorophenol <11 <10 <10
Ce1l4A LDS
Ch emIca an a 10 ogIca I d R d' I I Ch 'f aracterIS ICS
Constituent 2009 2010 2011
Major Ions (mg/l)
2,4-Dimethylphenol <11 <10 <10
2,4-Dinitrophenol <54 <20 <20
2,4-Dinitrotoluene <11 <10 <10
2,6-Dinitrotoluene <11 <10 <10
2-Chloronaphthalene <11 <10 <10
2-Chlorophenol <11 <10 <10
2-Methylnaphthalene <11 <10 <10
2-Methylphenol <11 <10 <10
2-Nitrophenol <11 <10 <10
3&4-Methylphenol <11 <10 <10
3,3 '-Dichlorobenzidine <22 <10 <10
4,6-Dinitro-2-methylphenol <54 <10 <10
4-Bromophenyl phenyl ether <11 <10 <10
4-Chloro-3-methylphenol <11 <10 <10
4-Chlorophenyl phenyl ether <11 <10 <10
4-Nitrophenol <54 <10 <10
Acenaphthene <11 <10 <10
Acenaphthylene <11 <10 <10
Anthracene <11 <10 <10
Azobenzene <11 <10 <10
Benz(a)anthracene <11 <10 <10
Benzidine <22 <10 <10
Benzo(a)pyrene <11 <10 <10
Benzo(b )fluoranthene <11 <10 <10
Benzo(g,h,i)perylene <11 <10 <10
Benzo(k)fluoranthene <11 <10 <10
Bis(2-chloroethoxy)methane <11 <10 <10
Bis(2-chloroethyl) ether <11 <10 <10
Bis(2-chloroisopropyl) ether <11 <10 <10
Bis(2-ethylhexyl) phthalate <11 54.9 54.9
Butyl benzyl phthalate <11 <10 <10
Chrysene <11 <10 <10
Dibenz(a,h)anthracene <11 <10 <10
Diethyl phthalate <11 <10 <10
Dimethyl phthalate <11 <10 <10
Di-n-butyJ~hthalate <11 <10 <10
Di-n-octyl phthalate <11 <10 <10
Fluoranthene <11 <10 <10
Fluorene <11 <10 <10
Hexachlorobenzene <11 <10 <10
Hexachlorobutadiene <11 <10 <10
Hexachlorocyclopentadiene <11 <10 <10
Hexachloroethane <11 <10 <10
Indeno(I,2,3-cd)pyrene <11 <10 <10
Isophorone <11 <10 <10
Naphthalene <11 <10 <10
Nitrobenzene <11 <10 <10
N-Nitrosodimethylamine <11 <10 <10
N-Nitrosodi-n-propylamine <11 <10 <10
N-Nitrosodiphenylamine <11 <10 <10
Pentachlorophenol <54 <10 <10
Phenanthrene <11 <10 <10
Phenol 33 23.5 <10
Pyrene <11 <10 <10
Pyridine <11 <10 <10
Ce1l4B
Ch emlca an d R d' I I Ch a looglca aracterIstics
Constituent 2011
Major Ions (mgll)
Carbonate <1
Bicarbonate <1
Calcium 570
Chloride 8290
Fluoride 26.7
Magnesium 3910
Nitrogen-Ammonia 5220
Nitrogen-Nitrate 39
Potassium 1370
Sodium 9050
Sulfate 134000
pH (s.u.) 1.87
TDS 98000
Conductivity (umhos/cm) 76900
Metals (ugll)
Arsenic 67400
Beryllium 311
Cadmium 1990
Chromium 6860
Cobalt 17800
Copper 193000
Iron 2960000
Lead 9960
Manganese 128000
Mercury 13.7
Molybdenum 21400
Nickel 33900
Selenium 4670
Silver 137
Thallium 237
Tin 196
Uranium 133000
Vanadium 660000
Zinc 191000
Radiolo2ics (vCill)
Gross Alpha 8590
VOCS (uWI)
Acetone 130
Benzene <1
Carbon tetrachloride <1
Chloroform 9.4
Chloromethane 8.5
MEK <1
Methylene Chloride <1
Naphthalene <1
Tetrahydrofuran <10
Toluene <1
Xylenes <1
SVOCS (u2lL)
1,2,4-Trichlorobenzene <10
1,2-Dichlorobenzene <10
1,3-Dichlorobenzene <10
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 <20
2,4-Dinitrotoluene <10
Cell4B
Chemical and Radiological Characteristics
Constituent 2011
Major Ions (mg/l)
2,6-Dinitrotoluene dO
2-Chloronaphthalene dO
2-Chlorophenol <10
2-Methylnaphthalene <10
2-Methylphenol dO
2-Nitrophenol <10
3&4-Methylphenol dO
3,3 '-Dichlorobenzidine <10
4,6-Dinitro-2-methylphenol <10
4-Bromophenyl phenyl ether dO
4-Chloro-3-methylphenol <10
4-Chlorophenyl phenyl ether dO
4-Nitrophenol dO
Acenaphthene dO
Acenaphthylene dO
Anthracene dO
Azobenzene <10
Benz(a)anthracene <10
Benzidine dO
Benzo(a)pyrene <10
Benzo(b )fluoranthene dO
Benzo(g,h,i)perylene <10
Benzo(k)fluoranthene dO
Bis(2-chloroethoxy)methane dO
Bis(2-chloroethyl) ether dO
Bis(2-chloroisopropyl) ether dO
Bis(2-ethylhexyl) phthalate 410
Butyl benzyl phthalate dO
Chrysene dO
Dibenz(a,h)anthracene dO
Diethyl phthalate <10
Dimethyl phthalate dO
Di-n-butyl phthalate dO
Di-n-octyl phthalate <10
Fluoranthene dO
Fluorene <10
Hexachlorobenzene <10
Hexachlorobutadiene <10
Hexachlorocyc1opentadiene <10
Hexachloroethane <10
Indeno(I,2,3-cd)pyrene <10
Isophorone <10
Naphthalene <10
Nitrobenzene <10
N -Ni trosodi methylamine <10
N-Nitrosodi-n-propylamine <10
N-Nitrosodiphenylamine <10
Pentachlorophenol <10
Phenanthrene <10
Phenol <10
Pyrene <10
Pyridine dO
CeIl4B LDS
Ch I d Rd· I I Ch emlca an a 10 o~lca aracterIstics
Constituent 20il
Major Ions (rmdl)
Carbonate <1
Bicarbonate <1
Calcium 486
Chloride 3630
Fluoride 28.4
Magnesium 3230
Nitrogen-Ammonia 4260
Nitrogen-Nitrate 30
Potassium 1130
Sodium 8240
Sulfate 59900
pH (s.u.) 2.23
TDS 85800
Conductivity (umhos/cm) 63000
Metals (UlU!)
Arsenic 54200
Beryllium 274
Cadmium 1670
Chromium 6250
Cobalt 15600
Copper 176000
Iron 2450000
Lead 6060
Manganese 118000
Mercury 12.3
Molybdenum 16700
Nickel 30700
Selenium 3710
Silver 111
Thallium 179
Tin 332
Uranium 111000
Vanadium 518000
Zinc 172000
Radiolo2ics (pCilI)
Gross Alpha 6000
VOCS (UluL)
Acetone 390
Benzene <1
Carbon tetrachloride <1
Chloroform 20
Chloromethane 11
MEK 240
Methylene Chloride <1
Naphthalene <1
Tetrahydrofuran 198
Toluene <1
Xylenes <1
SVOCS (uwL)
1,2,4-Trichlorobenzene <10
1,2-Dichlorobenzene <10
1,3-Dichlorobenzene <10
l,4-Dichlorobenzene <10
1-Methylnaphthalene <10
2,4,5-Trichlorophenol <10
2,4,6-Trichlorophenol <10
2,4-Dichlorophenol <10
2,4-Dimethylphenol <10
2,4-Dinitrophenol <20
2,4-Dinitrotoluene <10
2,6-Dini trotoluene <10
Cell4B LDS
Ch I emIca an d R d' I I Ch a looglca t 'f arac ens ICS
Constituent 2011
Major Ions (mWI)
2-Chloronaphthalene <10
2-Chlorophenol <10
2-Methylnaphthalene <10
2-Methylphenol <10
2-Nitrophenol <10
3&4-Methylphenol <10
3,3 '-Dichlorobenzidine <10
4,6-Dinitro-2-methylphenol <10
4-Bromophenyl phenyl ether <10
4-Chloro-3-methylphenol <10
4-Chlorophenyl phenyl ether <10
4-Nitrophenol <10
Acenaphthene <10
Acenaphthylene <10
Anthracene <10
Azobenzene <10
Benz(a)anthracene <10
Benzidine <10
Benzo(a)pyrene <10
Benzo(b )fluoranthene <10
Benzo(g,h,i)perylene <10
Benzo(k)fluoranthene <10
Bis(2-chloroethoxy)methane <10
Bis(2-chloroethyl) ether <10
Bis(2-chloroisopropyl) ether <10
Bis(2-ethylhexyl) phthalate 191
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
Hexachlorobutadiene <10
Hexachlorocyc!opentadiene <10
Hexachloroethane <10
Indeno(1,2,3-cd)pyrene <10
Isophorone <10
Naphthalene <10
Nitrobenzene <10
N-Nitrosodimethylamine <10
N-Nitrosodi-n~propylamine <10
N-Nitrosodiphenylamine <10
Pentachlorophenol <10
Phenanthrene <10
Phenol <10
Pyrene <10
Pyridine <10
-allDgs 1980 2003 IUCINRC T T as ewa er Wt t s ampJeS
Constituent Minimum Maximum
pH (Std units) 0.7 2.33
Nutrients (mg/L)
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
Inorganies (mg/L)
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 (mg/!)
Aluminum 330 2530
Antimony <20 <20
Arsenic 0.3 440
BaIium 1.021 0.1
Beryllium 0.347 0.78
Boron 3.5 11.3
Cadmium l.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
Silver 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 l.9 l.9
1980 -2003 IUC/NRC Tailings Wastewater Samples*l
Constituent Minimum "\ Maximum
Total Radium 42 1700
Selected vots (ug/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 11
Tetrahydofuran N/A N/A
Toluene <5 6.25
Vinyl Chloride <10 <10
Xylene (total) <5 <5
Selected Seniivolatiles (ugIL)
Benzo(a)pyrene <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 Quality Discharge Permit, Statement of Basis for a
Uranium Mining Facility at White Mesa, South of Blanding, Utah, dated December 1, 2004.
'The data in the Utah Division of Radiation Control Groundwater Quality Discharge Permit, Statement of Basis are based on historical
data collected from Cell 1, 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.
TabE
Quality Assurance and Data Validation Tables
Table E-l Holding Time Evaluation , ,
CellI Cell 2 I, CeU~ Ce1l4A ", Ce1l4A BC Ce1l4B , Ce1l4A (Duplicate Ce1l4B ,~ Required Holding Time Tailing!) , Slimes Tailings Tailings Tailings LDS ofCe1l4A LDS Fluid Drain ' Fluid Fluid LDS) Fluid
" ", -"
Major Ions ,
Carbonate 14 days OK OK OK OK OK OK OK OK
Bicarbonate 14 days OK OK OK OK OK OK OK OK
Calcium 6 months OK OK OK OK OK OK OK OK
Chloride 28 days OK OK OK OK OK OK OK OK
Fluoride 28 days OK OK OK OK OK OK OK OK
Magnesium 6 months OK OK OK OK OK OK OK OK
Nitrogen-Ammonia 28 days OK OK OK OK OK OK OK OK
Nitrogen-Nitrate 28 days OK OK OK OK OK OK OK OK
Potassium 6 months OK OK OK OK OK OK OK OK
Sodium 6 months OK OK OK OK OK OK OK OK
Sulfate 28 days OK OK OK OK OK OK OK OK
pH (s.u.) N/A OK OK OK OK OK OK OK OK
TDS 7 days OK OK OK OK OK OK OK OK
Conductivity (umhos/cm) N/A OK OK OK OK OK OK OK OK
6 months (except mercury
Metals which is 28 days) OK OK OK OK OK OK OK OK
Radiologics 6 months OK OK OK OK OK OK OK OK
VOCS (including THF) 14 days OK OK OK OK OK OK OK OK
7 days to extractionl40 days
SVOCS for analysis OK OK OK OK OK OK OK OK
E-2 Laboratory Receipt Temperature Check
Work Order NumberlLab
SetID Receipt Temp ..
EL -C11081062 1.8°C
AWAL -1108534 1.6°C
E-3: Analytical Method Check -Routine Samples
Parameter QAP/Pernut 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.l
VOCs except Tetrahydrofuran SW8260B SW8260B
Tetrahydrofuran SW8260C SW8260C
Chloride A4500-Cl B A4500-Cl B
Fluoride A4500-FC A4500-F C
Sulfate A4500-S04 E A4500-S04 E
TDS A2540 C A2540C
Carbonate as C03, Bicarbonate as HC03 A2320 B A2320 B
Calcium, Magnesium, Potassium, Sodium E200.7 E200.7
SVOCs 8270D 8270D
E-4 Reporting Limit Evaluation
Parameter . Pernlit-Specified RL
Ammonia (as N) 25 mg/L
Nitrate + Nitrite (as N) 10 mg/L
Metals ugIL
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
VOCsugIL
Acetone 700
Benzene 5
Carbon tetrachloride 5
Chloroform 70
Chloromethane 30
MEK 4000
Methylene Chloride 5
Naphthalene 100
Tetrah ydrofuran 46
Toluene 1000
Xylenes 10000
Major Ions
Chloride 1.0 mg/L
Fluoride 4 mg/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) ugIL
1,2,4-Trichlorobenzene 10
1,2-Dichlorobenzene 10
E-4 Reporting Limit Evaluation
Parameter. Permit-Specified RL ,
1,3-Dichlorobenzene 10
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-Methylnaphthalene 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 )fluoranthene 10
Benzo(g,h,i)perylene 10
Benzo(k)fluoranthene 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
E-4 Reporting Limit Evaluation
. Parameter
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyc!opentadiene
Hexachloroethane
Indeno(I,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
10
10
10
10
10
10
10
10
10*
10
10
50
10
10
10
10*
RL
E-5: Trip Blank Evaluation
All trip blanks for the 2011 sampling program were nondetect.
Blank Sample Date Laboratory
1 8/24/2011 AWAL
2 8/25/2011 EL
E-6 Duplicate Sample Relative Percent Difference
, ,
lYbjor Ions (mg/l) , Ce1l4A LDS ' Ce1l4A BC RPD%
, "
Carbonate <1 <1 NA
Bicarbonate <1 <1 NA
Calcium 470 470 0
Chloride 6040 5520 9
Fluoride 46 46 0
Magnesium 5100 4940 3
Nitrogen-Ammonia 3480 3500 1
Nitrogen-Nitrate 94 94 0
Potassium 1500 1470 2
Sodium 11000 11000 0
Sulfate 77400 70800 9
pH (s.u.) 2 2.33 0
TDS 93800 93800 0
Conductivity (umhos/cm) 66600 66600 0
Metals (ugll) "
Arsenic 74700 71000 5
Beryllium 367 374 2
Cadmium 3160 2860 10
Chromium 5940 5720 4
Cobalt 21700 19600 10
Copper 150000 143000 5
Iron 2530000 2450000 3
Lead 4520 4110 10
Manganese 207000 188000 10
Mercury 15 12.1 19
Molybdenum 29300 26100 12
Nickel 29600 28800 3
Selenium 3780 3680 3
Silver 127 114 11
Thallium 290 260 11
Tin 119 118 1
Uranium 168000 150000 11
Vanadium 770000 740000 4
Zinc 204000 198000 3
Radiologies (pCi/I) "
Gross Alpha 7440 7420 1
VOCS (uglL) , C: , , ,
Acetone 120 150 22
Benzene <1 <1 NA
Carbon tetrachloride <1 <1 NA
Chloroform 26 33 24
Chloromethane 4 4.5 17
MEK 82 100 20
E-6 Duplicate Sample Relative Percent Difference
Major Ions (mg/l) Ce1l4A LDS Ce1l4A BC RPD%
Methylene Chloride <1 <1 NA
Naphthalene <1 <I NA
Tetrahydrofuran 102 99.4 3
Toluene <1 <1 NA
Xylenes <1 <1 NA
SVOCS (ug/L) ,
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 <10 <10 NA
2,4-Dinitrophenol <20 <20 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-Meth ylphenol <10 <10 NA
3,3' -Dichlorobenzidine <10 <10 NA
4,6-Dinitro-2-methylphenol <10 <10 NA
4-Bromophenyl phenyl ether <10 <10 NA
4-Chloro-3-meth ylphenol <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
Major Ions (mgII) CeIl4A LDS Celi 4ABC c, RPD%
Bis(2-ethylhexyl) phthalate 54,9 <10 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
Hexachlorocyc!opentadiene <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-propylamine <10 <10 NA
N-Nitrosodiphenylamine <10 <10 NA
Pentachlorophenol <10 <10 NA
Phenanthrene <10 <10 NA
Phenol <10 <10 NA
Pyrene <10 <10 NA
Pyridine <10 <10 NA
Highlighted cells indicate an RPD that exceeded the 20% RPD criteria
E-7 Radiologies Counting Error
, . I! t
, . Gross Alpha Counting .'
Gross Alpha . minus Rn & U Error~ .. Within . '
. Sample ID .. minus Rn & U' Precision (±) 20% GWQS GW<QS
Celli 3610 14.4 Y 15 NA
Cell 2 Slimes 1230 8.4 Y 15 NA
Cell 3 11100 29.1 Y 15 NA
Cell4A 8290 25.2 Y 15 NA
Cell4A LDS 7440 23.8 Y 15 NA
Cell4B 8590 25.6 Y 15 NA
Cell4B LDS 6000 21.4 Y 15 NA
Cell4A BC
(Duplicate of Cell
4A LDS) 7420 23.8 Y 15 NA
E-8: Laboratory Matrix QC
Matrix Spike % Recovery Comparison
MSD
Lab~eport Sample ID Analyte MS %REC %REC RECRange RPD
CI1081062 CellI lron* NC NC 70-130 NC
CI1081062 Cell4A Arsenic* NC NC 70-130 NC
CI1081062 Cell4A Cadmium 131 110 70-130 10
CII081062 Ce1l4A Chromium 150 145 70-130 1.2
CI1081062 Cell4A Cobalt* NC NC 70-130 NC
CI1081062 Cell4A Copper* NC NC 70-130 NC
C11081062 Ce1l4A Lead* NC NC 70-130 NC
C11081062 Cell4A Manganese* NC NC 70-130 NC
C11081062 Ce1l4A Molybdenum* NC NC 70-130 NC
CI1081062 Cell4A Nickel * NC NC 70-130 NC
CII081062 Cell4A Uranium* NC NC 70-130 NC
C11081062 Ce1l4A Vanadium* NC NC 70-130 NC
C11081062 Ce1l4A Zinc* NC NC 70-130 NC
1108534 Cell4B 4-Nitrophenol 0 7.91 10-135 200
1108534 Ce1l4B 1,4-Dichlorobenzene 7.09 7.68 11 -90 7.96
1108534 Cell4B 2-Chlorophenol 19 19.5 20-107 2.6
1108534 Cell4B 4-Chloro-3-methylphenol 0 0 10-136 0
1108534 Ce1l4B 2,4-Dimethylphenol 9.88 10.3 10-176 3.85
1108534 Cell4B 1,2,4-Tdchlorobenzene 14.7 17.3 20-107 15.9
1108534 Ce1l4B Pentachlorophenol 17 7.01 10-131 83.4
NA = MS samples were not Denison samples.
*= Recovery was not calculated as the analyte level in the sample was greater than 4 times the spike level.
Surrogate % Recovery
Lab . QAP,'
Surrogate Specified Required
Lab Report WelVSample Analyte %REC REC Range Range
C11081062 CellI Dibromofluoromethane 158 70-130 None
CI1081062 Cell 3 1,2 Dichlorobenzene -d4 121 80-120 None
CII081062 Cell 3 Dibromofluoromethane 159 70-130 None
1108534 Cell 2 Nitrobenzene-d5 1.3 10-180 None
1108534 Cell4B 2-Fluorophenol 1.8 10-106 None
1108534 Ce1l4B 2-Fluorophenol 1.06 10-106 None
1108534 Cell4B LOS 2-Fluorophenol 3.51 10-106 None
1108534 Cell4B MS 2-Fluorophenol 7.65 10-106 None
1108534 Cell4B MSD 2-Fluorophenol 6.98 10-106 None
1108534 Ce1l4B LOS 2-Fluorophenol 2.73 10-106 None
Method Blank detections
Reported
Lab Report WelVSample Analyte Concentration
CI1081062 NA Bicarbonate as HC03 2.3 mg/L