DRC-2011-003369 - 0901a06880219001

DENisorr^.
MINES
DRG-2011-0033
Denison Mines (I
Denison IVIines (USA) Co
105017th Street, Suite 950
Denver, CO 80265
USA
Tei: 303 628-7798:
Fax: [phone]
www.denlsonmines.com
Sent VIA Federal Express
Febraary24,2011
Mr. Rusty Lundberg
Co-Executive Secretary
Utah Water Quality Board
Utah Department of Environmental Quality
195 North 1950 West
P.O. Box 144820
Salt Lake City, UT 84114-4820
Re: Transmittal of 4th Quarter 2010 Routine Chloroform Moni^^^
UDEQ Doclcet No. UGQ-20-OlVWhite Mesa Uranium MUI
Dear Mr. Lundberg:
Enclosed are two copies ofthe White Mesa Uranium Mill Chloroform Monitoring Report for the
4th Quarter of 2010 as required by the Notice of Violation and Groundwater Corrective Action
Order, UDEQ Docket No. UGQ-20-01 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 Pennitting
CC: Ron F. Hochstein
David G. Frydenlund
Harold R, Roberts
David E.Turk
KathyWeinel
Central Files
Sent VIA Federal Express
February 24,2011
Mr. Rusty Lundberg
Co-Executive Secretary
Utah Water Quality Board
Utah Department of Environmental Quality
195 North 1950 West
P.O. Box 144820
Salt Lake City, UT 84114-4820
Denison Mines (USA) Corp.
1050 17th Street, Suite 950
Denver, CO 80265
USA
Tel: [phone]
Fax: [phone]
www.denisonmlnes.com
Re: Transmittal of 4th Quarter 2010 Routine Chloroform Monitoring Report
UDEQ Docket No. UGQ-20-01-White Mesa Uranium Mill
Dear Mr. Lundberg:
Enclosed are two copies of the White Mesa Uranium Mill Chloroform Monitoring Report for the
4th Quarter of2010 as required by the Notice of Violation and Groundwater Corrective Action
Order, UDEQ Docket No. UGQ-20-01 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.
JoAnn Tischler
Director, Compliance and Pennitting
CC: Ron F. Hochstein
David C. Frydenlund
Harold R. Roberts
David E. Turk
Kathy Weinel
Central Files
White Mesa Uranium Mill
Chloroform Monitoring Report
State of Utah
Notice ofViolationattd Groundwater Corrective Action Order UDEQ
Docket No. UGQ-20-01
4th Quarter
(October through December)
2010
Prepared by:
Denison Mines (USA) Corp.
1050 17th Street, Suite 950
Denver CO 80265
February 24, 2011
TABLE OF CONTENTS
1.0 INTRODUCTION ................................................................................................. 1
2.0 CHLOROFORM MONITORING ...................................................................... 1
2.1 Samples and Measurements Taken During the Quarter ..................................... 1
2.1.1 Chloroform Monitoring .............................................................................. 1
2.1.2 Parameters Analyzed .................................................................................. 2
2.1.3 Groundwater Head Monitoring ................................................................... 2
2.2 Sampling Methodology and Equipment and Decontamination Procedures ....... 3
2.2.1 Well Purging and Depth to Groundwater ................................................... 3
2.2.2 Sample Collection ....................................................................................... 4
2.3 Field Data ............................................................................................................ 4
2.4 Depth to Groundwater Data and Water Table Contour Map .............................. 5
2.5 Laboratory Results .............................................................................................. 5
2.5.1 Copy of Laboratory Results ........................................................................ 5
2.5.2 Regulatory Framework ............................................................................... 5
3.0 QUALITY ASSURANCE AND DATA VALIDATION ................................... 5
3.1 Field QC Samples ............................................................................................... 6
3.2 Adherence to Mill Sampling SOPs ..................................................................... 7
3.3 Analyte Completeness Review ........................................................................... 7
3.4 Data Validation ................................................................................................... 7
3.4.1 Field Data QAlQC Evaluation .................................................................... 7
3.4.2 Holding Time Evaluation ............................................................................ 9
3.4.3 Receipt Temperature Evaluation ................................................................. 9
3.4.4 Analytical Method Checklist ...................................................................... 9
3.4.5 Reporting Limit Evaluation ........................................................................ 9
3.4.6 Trip Blank Evaluation ................................................................................. 9
3.4.7 QAlQC Evaluation for Sample Duplicates ................................................. 9
3.4.8 Rinsate Sample Check .............................................................................. 10
3.4.9 Other Laboratory QAlQC ......................................................................... 11
4.0 INTERPRETATION OF DATA ....................................................................... 13
4.1 Interpretation of Groundwater Levels, Gradients and Flow Directions ........... 13
4.1.1 Current Site Groundwater Contour Map ................................................... 13
4.1.2 Comparison of Current Groundwater Contour Maps to Groundwater
Contour Map for Previous Quarter ........................................................... 13
4.1.3 Hydrographs .............................................................................................. 14
4.1.4 Depth to Groundwater Measured and Groundwater Elevation ................. 14
4.1.5 Evaluation of the Effectiveness of Hydraulic Capture ............................. 14
4.2 Review of Analytical Results ............................................................................ 15
4.2.1 Current Chloroform Isoconcentration Map .............................................. 15
4.2.2 Chloroform Concentration Trend Data and Graphs .................................. 15
4.2.3 Interpretation of Analytical Data ..................................................................... 15
5.0 LONG TERM PUMP TEST AT MW-4, TW4-15 (MW-26), TW4-19, TW4-
20, AND TW4-4 OPERATIONS REPORT ...................................................... 17
5.1 Introduction ....................................................................................................... 17
5.2 Pump Test Data Collection ............................................................................... 17
5.3 Water Level Measurements .............................................................................. 17
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5.4 Pumping Rates and Volumes ............................................................................ 18
5.4.1 MW-4 ........................................................................................................ 18
5.4.2 TW4-19 ..................................................................................................... 18
5.4.3 TW4-15 (MW-26) ..................................................................................... 18
5.4.4 TW4-20 ..................................................................................................... 19
5.4.5 TW4-4 ....................................................................................................... 19
5.5 Mass Removed .................................................................................................. 19
5.6 Inspections ........................................................................................................ 19
5.7 Conditions That May Affect Water Levels in Piezometers .............................. 20
6.0 CORRECTIVE ACTION REPORT ................................................................. 20
6.1 Rinsate Blank Sample Nitrate Levels ..................................................................... 20
6.2 Assessment of Previous Quarter's Corrective Actions .......................................... 21
7.0 CONCLUSIONS AND RECOMMENDATIONS ............................................ 22
8.0 ELECTRONIC DATA FILES AND FORMAT .............................................. 24
9.0 SIGNATURE AND CERTIFICATION ........................................................... 25
LIST OF TABLES
Table 1 Summary of Well Sampling for the Period
Table 2 Mass of Chloroform Removed Per Well Per Quarter
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INDEX OF TABS
Tab A Site Plan and Perched Well Locations White Mesa Site
Tab B Order of Sampling and Field Data Worksheets
Tab C Weekly and Monthly Depth to Water Data
Tab D Kriged Current Quarter Groundwater Contour Map, Capture Zone Map, Capture
Zone Details Map, and Depth to Water Data Table
Tab E Kriged Previous Quarter Groundwater Contour Map
Tab F Hydrographs of Groundwater Elevations Over Time for Chloroform Monitoring
Wells
Tab G Depths to Groundwater and Elevations Over Time for Monitoring Wells
Tab H Laboratory Analytical Reports
Tab I Quality Assurance and Data Validation Tables
I-I Field Data QNQC Evaluation
1-2 Holding Time Evaluation
1-3 Receipt Temperature Check
1-4 Analytical Method Check
1-5 Reporting Limit Evaluation
1-6 Trip Blank Evaluation
1-7 QNQC Evaluation for Sample Duplicates
1-8 QC Control Limits for Analyses and Blanks
1-9 Rinsate Evaluation
Tab J Kriged Current Quarter Chloroform Isoconcentration Map
Tab K Analyte Concentration Data Over Time
Tab L Chloroform Concentration Trend Graphs
Tab M CSV Transmittal Letter
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1.0 INTRODUCTION
The presence of chlorofonn was initially identified in groundwater at the White Mesa
Mill (the "Mill") as a result of split sampling perfonned in May 1999. The discovery
resulted in the issuance of State of Utah Notice of Violation ("NOV") and Groundwater
Corrective Action Order ("CAO") State of Utah Department of Environmental Quality
("UDEQ") Docket No. UGQ-20-01, which required that Denison Mines (USA) Corp.
("DUSA") submit a Contamination Investigation Plan and Report pursuant to the
provisions ofUAC R317-6-6.l5(D).
The frequency of chlorofonn sampling, which was initially perfonned on a monthly
basis, was modified on November 8, 2003 . Since that time all chlorofonn contaminant
investigation wells have been sampled on a quarterly basis.
This is the Quarterly Chlorofonn Monitoring Report for the fourth quarter of 2010 as
required under the NOV and CAO. This Report also includes the Operations Report for
the Long Tenn Pump Test at MW-4, TW4-19, TW4-15 (MW-26), TW4-20, and TW4-4
for the quarter.
2.0 CHLOROFORM MONITORING
2.1 Samples and Measurements Taken During the Quarter
A map showing the location of all groundwater monitoring wells, piezometers, existing
wells, temporary chlorofonn contaminant investigation wells and temporary nitrate
investigation wells is attached under Tab A. Chlorofonn samples and measurements
taken during this reporting period (October through December), are discussed in the
remainder of this section.
2.1.1 Chloroform Monitoring
Quarterly sampling for chlorofonn monitoring parameters is currently required in the
following wells:
TW4-1
TW4-2
TW4-3
TW4-4
TW4-5
TW4-6
TW4-7
TW4-8
TW4-9
TW4-10
TW4-11
TW4-12
TW4-13
TW4-14
TW4-16
TW4-18
TW4-19
TW4-20
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TW4-21
TW4-22
TW4-23
TW4-24
TW4-25
MW-4
MW-26 (TW4-15)
MW-32 (TW4-17)
TW4-26
Table 1 provides an overview of all wells sampled during the current period, along with
the date samples were collected from each well, and the date(s) which analytical data
were received from the contract laboratory. Table 1 also identifies equipment rinsate
samples collected, as well as sample numbers associated with the deionized field blank
(DIFB) and any required duplicates.
As indicated in Table 1, chloroform monitoring was performed in all of the required
chloroform monitoring wells.
2.1.2 Parameters Analyzed
Wells sampled during this reporting period were analyzed for the following constituents:
• Chloroform
• Chloromethane
• Carbon tetrachloride
• Methylene chloride
• Chloride
• Nitrate plus Nitrite as Nitrogen
Use of analytical methods is consistent with the requirements of the Chloroform
Investigation Monitoring Quality Assurance Program (the "Chloroform QAP") attached
as Appendix A to the White Mesa Uranium Mill Groundwater Monitoring Quality
Assurance Plan ("QAP").
2.1.3 Groundwater Head Monitoring
Depth to groundwater was measured in the following wells and/or piezometers, pursuant
to Part I.E.3 of the Groundwater Discharge Permit (the "GWDP"):
• The quarterly groundwater compliance monitoring wells (including the newly
installed MW-33, MW-34 and MW-35 if water was present).
• Existing monitoring well MW -4 and all of the temporary chloroform investigation
wells.
• Piezometers -P-l, P-2, P-3, P-4 and P-5.
• MW-20 and MW-22.
• Nitrate monitoring wells.
• In addition to the above, depth to water measurements are routinely observed in
conjunction with sampling events for all wells sampled during quarterly and
accelerated efforts, regardless of the sampling purpose.
All well levels used for groundwater contour mapping were measured and recorded
within 5 calendar days of each other as indicated by the measurement data in the
summary sheet under Tab D.
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In addition, weekly and monthly depth to groundwater measurements were taken in MW-
4, TW4-15 (MW-26), TW4-19, TW4-20, and TW4-4, as part of the long term pumping
test for MW-4.
2.2 Sampling Methodology and Equipment and Decontamination Procedures
DUSA completed, and transmitted to UDEQ on May 25, 2006, a revised QAP for
sampling under the Mill's GWDP. While the water sampling conducted for chloroform
investigation purposes has conformed to the general principles set out in the QAP, some
of the requirements in the QAP were not fully implemented prior to UDEQ's approval,
for reasons set out in correspondence to UDEQ dated December 8, 2006. Subsequent to
the delivery of the December 8, 2006 letter, DUSA discussed the issues brought forward
in the letter with UDEQ and has received correspondence from UDEQ about those issues.
In response to UDEQ's letter and subsequent discussions with UDEQ, DUSA has
incorporated changes in chloroform Quality Assurance ("QA") procedures in the form of
the Chloroform QAP, which is a separate Appendix A to the QAP. The Chloroform QAP
describes the differing needs of the chloroform investigation program, and is an
attachment to the GWDP QAP where QA requirements for the chloroform investigation
are addressed. On June 20, 2009 the Chloroform QAP was modified to require that the
quarterly chloroform reports include additional items specific to DUSA's ongoing pump
testing and chloroform capture efforts.
The sampling methodology, equipment and decontamination procedures that were
performed for the chloroform contaminant investigation, as summarized below, are
consistent with the QAP and the Chloroform QAP.
2.2.1 Well Purging and Depth to Groundwater
A list of the wells in order of increasing chloroform contamination is generated quarterly.
The order for purging is thus established. The list is included with the Field Data
Worksheets under Tab B. Mill personnel start purging with all of the non-detect wells
and then move to the more contaminated wells in order of chloroform contamination.
Before leaving the Mill office, the portable pump and hose are rinsed with DI water. A
rinsate blank sample is collected at the beginning of each day prior to the first use of the
pump. Mill personnel then proceed to the first well which is the well with the lowest
concentration of chloroform based on the previous quarter's sampling results. Well depth
measurements are taken and the two casing volumes are calculated for those wells which
do not have a dedicated pump (measurements are made using the same instrument used
for the monitoring wells under the Mill's GWDP). If the well has a dedicated pump, it is
pumped on a set schedule per the remediation plan and is considered sufficiently
evacuated to immediately collect a sample; however, if a pumping well has been out of
service for 48 hours or more, DUSA will follow the purging requirements outlined in
Section 6.2.7(d)(v) of the QAP. The dedicated pump is used to collect parameters and to
collect the samples. If the well does not have a dedicated pump, a Grundfos pump (9 -10
gpm pump) is then lowered to the screened interval in the well and purging is started.
The purge rate is established for the well by using a calibrated 5 gallon bucket. The
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purging of the well is completed per Section 6.2.5 of the QAP. In wells where the
portable pump is used, a disposable bailer is used to collect the samples the day following
purging activities. After each use, the portable pump is decontaminated prior to reuse at
the next sample location. This purging process is repeated at each well location moving
from least contaminated to the most contaminated well. All wells are capped and secured
prior to leaving the sampling location.
2.2.2 Sample Collection
Samples are collected as described above. In all cases, on days when samples will be
collected, a cooler with ice is prepared. The trip blank is also gathered at that time (the
trip blank for these events is provided by the Analytical Laboratory). Once Mill
Personnel arrive at the well sites, labels are filled out for the various samples to be
collected. All personnel involved with the collection of water and samples are then
outfitted with rubber gloves. Chloroform investigation samples are collected by means of
disposable bailers.
Mill personnel use a disposable bailer to sample each well that does not have a dedicated
pump. The bailer is attached to a reel of approximately 150 feet of nylon rope and then
lowered into the well. After coming into contact with the water, the bailer is allowed to
sink into the water in order to fill. Once full, the bailer is reeled up out of the well and
the sample bottles are filled as follows:
• Volatile Organic Compound ("VOC") samples are collected first. This sample
consists of three 40 ml vials provided by the Analytical Laboratory. The VOC
sample is not filtered and is preserved with HCI;
• A sample for nitrate/nitrite is then collected. This sample consists of one 250 ml.
bottle which is provided by the Analytical Laboratory. The nitrate/nitrite sample
is also not filtered and is preserved with H2S04;
• A sample for chloride is then collected. This sample consists of one 500 ml.
bottle which is provided by the Analytical Laboratory. The chloride sample is
also not filtered and is not chemically preserved.
After the samples have been collected for a particular well, the bailer is disposed of and
the samples are placed into the cooler that contains ice. The well is then recapped and
Mill personnel proceed to the next well.
2.3 Field Data
Attached under Tab B are copies of all Field Data Worksheets that were completed
during the quarter for the chloroform contaminant investigation monitoring wells
identified in paragraph 2.1.1 above, and Table 1.
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2.4 Depth to Groundwater Data and Water Table Contour Map
Attached under Tab C are copies of the Depth to Water Sheets for the weekly monitoring
of MW-4, TW4-15 (MW-26), TW4-19, TW4-20, and TW4-4, as well as the monthly
depth to groundwater data for chloroform contaminant investigation wells measured
during the quarter that are not included in Tab D. Depth to groundwater measurements
which were utilized for groundwater contours are included on the Quarterly Depth to
Water Worksheet at Tab D of this report, along with the kriged groundwater contour map
for the current quarter generated from this data. All of the water level measurements
used for the contour map were collected within 5 days of each other as indicated by the
measurement dates in the summary sheet under Tab D. A copy of the kriged
groundwater contour map generated from the 3rd quarter 2010 data is provided under
TabE.
2.5 Laboratory Results
2.5.1 Copy of Laboratory Results
All analytical results were provided by Energy Laboratories ("EL"). Table 1 lists the
dates when analytical results were reported to the QA Manager for each well or other
sample.
Results from analysis of samples collected for the fourth quarter chloroform contaminant
investigation are provided under Tab H of this Report. Also included under Tab H are
the results of analyses for duplicate samples, the DIFB, and rinsate samples for this
sampling effort, as identified in Table 1, as well as results for trip blank analyses required
by the Chloroform QAP.
2.5.2 Regulatory Framework
As discussed in Section 1.0, above, the NOV and requirements of the CAO triggered a
series of actions on DUSA's part. In addition to the monitoring program, DUSA has
equipped five wells with pumps to recover impacted groundwater, and has initiated
recovery of chloroform from the perched zone.
Sections 4 and 5, below, interpret the groundwater level and flow information,
contaminant analytical results, and pump test data to assess effectiveness of DUSA's
chloroform capture program.
3.0 QUALITY ASSURANCE AND DATA VALIDATION
The QA Manager performed a QAlQuality Control ("QC") review to confirm compliance
of the monitoring program with requirements of the 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 QC review of laboratory methods and
data. Identification of field QC samples collected and analyzed is provided in Section
3.1. Discussion of adherence to Mill sampling Standard Operating Procedures ("SOPs")
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is provided in Section 3.2. Analytical completeness review results are provided in
Section 3.3. The steps and tests applied to check laboratory data QAlQC are discussed in
Sections 3.4.4 through 3.4.9 below.
The analytical laboratory has provided summary reports of the analytical quality QAlQC
measurements necessary to maintain conformance with National Environmental
Laboratory Accreditation Conference ("NELAC") certification and reporting protocol.
The Analytical Laboratory QAlQC Summary Reports, including copies of the Mill's
Chain of Custody and Analytical Request Record forms for each set of Analytical
Results, follow the analytical results under Tab H. Results of review of the laboratory
QAlQC information are provided under Tab I and are discussed in Section 3.4, below.
3.1 Field QC Samples
The following QC samples were generated by Mill personnel and submitted to the
analytical laboratory in order to assess the quality of data resulting from the field
sampling program.
Field QC samples for the chloroform investigation program consist of one field duplicate
sample for each 20 samples, a trip blank for each shipped cooler which contains VOCs,
one DI field blank and rinsate samples.
During this quarter, two duplicate samples were collected as indicated in Table 1. The
duplicates were sent blind to the analytical laboratory and analyzed for the same
parameters as the chloroform wells.
Two trip blanks were provided by Energy Laboratories and returned with the quarterly
chloroform monitoring samples.
Four rinsate blank samples were collected as indicated on Table 1. Rinsate samples were
labeled with the name of the subsequently purged well with a terminal letter "R" added
(e.g. TW 4-7R). The results ofthese analyses are included with the routine analyses under
TabH.
It is important to note that the rinsate blank sample frequency was modified this quarter
as recommended by UDEQ personnel present on site for split sampling. Previously, a
rinsate blank sample was collected after each decontamination of the nondedicated pump
and prior to the next use of the pump. Per an e-mail from Mr. Phil Goble, dated October
4, 2010, rinsate blank samples are only required at the beginning of the sampling event
and at the beginning of each day of sampling. The frequency change was implemented
immediately and the rinsate blank frequency will be modified for all future sampling
events.
In addition, one DIFB, while not required by the Chloroform QAP, was collected and
analyzed for the same constituents as the well samples and rinsate blank samples.
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3.2 Adherence to Mill Sampling SOPs
On a review of adherence by Mill personnel to the existing sampling SOPs, the QA
Manager observed that QNQC requirements established in the QAP and Chloroform
QAP were being adhered to and that the SOPs were implemented, except as described
below.
One site procedure requiring clarification was noted during the QA Manager's review of
the field data. As previously stated, a list of the wells in order of increasing chloroform
contamination (based on the previous quarter's data) is generated quarterly to determine
the order for purging prior to sampling. The QAP wording implies that the samples will
be collected in the same order. Chloroform wells are purged in order of least
contaminated to most contaminated to preclude cross-contamination. Sampling order
may deviate slightly from the generated list. This deviation does not affect the samples
for these reasons: any wells sampled in slightly different order had either a dedicated
pumps or were sampled via a disposable bailer. This deviation does not affect the quality
or usability of the data as there is no increase in cross-contamination resulting from
sampling order. DUSA intends to propose an amendment to address this in the next
revision of the QAP.
3.3 Analyte Completeness Review
All analyses required by the GWDP for chloroform monitoring for the period were
performed.
3.4 Data Validation
The QAP and GWDP identify the data validation steps and data QC checks required for
the chloroform monitoring program. Consistent with these requirements, the QA
Manager performed the following evaluations: a field data QNQC evaluation, a holding
time check, a receipt temperature check, an analytical method check, a reporting limit
evaluation, a trip blank check, a QNQC evaluation of sample duplicates, a QC Control
Limit check for analyses and blanks including the DIFB and a rinsate sample check.
Each evaluation is discussed in the following sections. Data check tables indicating the
results of each test are provided under Tab I.
3.4.1 Field Data QAlQC Evaluation
The QA Manager performs a review of all field recorded parameters to assess their
adherence with QAP requirements. The assessment involved review of two sources of
information: the Field Data Sheets and the Quarterly Depth to Water summary sheet.
Review of the Field Data Sheets addresses well purging volumes and stability of five
parameters: conductance, pH, temperature, redox potential, and turbidity. Review of the
Depth to Water data confirms that all depth measurements used for development of
groundwater contour maps were conducted within a five-day period as indicated by the
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measurement dates in the summary sheet under Tab D. The results of this quarter's
review of field data are provided under Tab I.
Based upon this review, all non-pumping wells conformed to the QAP requirement to
evacuate two well casing volumes before sampling except TW4-2, TW4-7, and TW4-10.
All of these wells were pumped to dryness before two casing volumes were evacuated.
In each case, representative samples of formation water were collected after the wells
were allowed to recover. In addition, TW4-6, TW4-14, and TW4-26 were pumped to
dryness after 2 casing volumes were evacuated.
During review of the field data sheets, it was observed that sampling personnel
consistently recorded depth to water to the nearest 0.01 foot.
All field parameters for all wells were within the required Relative Percent Difference
("RPD") (other than the wells that were pumped to dryness and the wells which are
continually pumped, for which this requirement does not apply), except as follows.
The review of the field sheets for compliance with QAP requirements resulted in the
observations noted below. The requirements in Section 6.2.7 of the QAP specifically
state that field parameters must have stabilized to within 10% over at least 2 consecutive
measurements. The QAP states that turbidity should be less than 5 Nephelometric
Turbidity Units ("NTU") prior to sampling unless the well is characterized by water that
has a higher turbidity. The QAP does not require that turbidity measurements be less
than 5 NTU prior to sampling. As such, the noted observations regarding turbidity
measurements less than 5 NTU below are included for information purposes only.
Three wells did not meet the requirement for the stabilization of turbidity within 10%
RPD. TW4-14 and TW4-26 were purged to dryness prior to the achievement of
stabilization for turbidity. TW4-19 is a continuously pumped well. As previously stated,
the continuously pumped wells are excluded from the QAP goals and requirements
because, if a well is continuously pumped, it is pumped on a set schedule per the
remediation plan and is considered sufficiently evacuated to immediately collect a
sample. For continuously pumped wells, the field parameters are therefore collected for
information purposes only.
Nineteen turbidity measurements exceeded the QAP's 5 NTU goal. Of the nineteen
wells, six wells were pumped to dryness. The six wells that are pumped to dryness are
excluded from the QAP goals.
DUSA's letter to DRC of March 26,2010 discusses further why turbidity does not appear
to be an appropriate parameter for assessing well stabilization. In response to DRC's
subsequent correspondence dated June 1, 2010 and June 24, 2010, DUSA is currently
implementing a groundwater monitoring well redevelopment program. The
redevelopment program has reviewed the available turbidity data for the Chloroform
wells and has developed a list of wells that have or will undergo redevelopment utilizing
several strategies. The redevelopment strategies include additional surging and bailing
and overpumping as necessary. The redevelopment program is in progress and at the
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completion of the redevelopment program, DUSA will review the redevelopment data
and summarize the status of the Chloroform wells. Redevelopment results will be
discussed with DRC in an effort to come to a consensus regarding any additional
redevelopment steps and/or future turbidity considerations for the Chloroform wells at
the Mill site.
One other field parameter was outside of the QAP requirement for 10% stabilization
criteria. The temperature measurement in TW4-14 had an RPD of 13.48% because TW4-
14 was purged to dryness prior to the achievement of stabilization.
3.4.2 Holding Time Evaluation
QAP Table 1 identifies the method holding times for each suite of parameters. Sample
holding time checks are provided in Tab 1. All samples were received and analyzed
within the required holding time.
3.4.3 Receipt Temperature Evaluation
Chain of Custody sheets were reviewed to confirm compliance with the QAP requirement
which specifies that samples be received at 6°C or lower. Sample temperatures checks
are provided in Tab 1. All samples were received within the required temperature limit.
3.4.4 Analytical Method Checklist
All analytical methods reported by the laboratory were checked against the required
methods enumerated in the Chloroform QAP. Analytical method checks are provided in
Tab 1. All methods were consistent with the requirements of the Chloroform QAP.
3.4.5 Reporting Limit Evaluation
All analytical method reporting limits reported by the laboratory were checked against
the reporting limits enumerated in the Chloroform QAP. Reporting Limit Checks are
provided under Tab 1. All analytes were measured and reported to the required reporting
limits, except 25 sets of sample results (23 wells, and 2 duplicates) had the reporting limit
raised for at least one analyte due to matrix interference and/or sample dilution. In all
cases the reported value for the analyte was higher than the increased detection limit.
3.4.6 Trip Blank Evaluation
All trip blank results were reviewed to identify any VOC contamination resulting from
transport of the samples. Trip blank checks are provided in Tab 1. All trip blank results
were less than the reporting limit for all VOC analytes.
3.4.7 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
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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 reported detection limit and the RPD is greater than 20%. The additional
duplicate information is provided for information purposes.
All analytical results except for chloroform in sample/duplicate pair TW 4-1/TW 4-70
were within the 20% RPD acceptance limits. The chloroform results are both greater than
5 times the reporting limit and both results were diluted 100-fold due to the high
chloroform concentration. The RPD greater than 20% is most likely due to a dilution
error in the laboratory. In addition, the results are significantly above the groundwater
quality standard of 70 ug/L and as such the noncompliant RPD results do not affect the
quality or usability of the data. Results of the RPD test are provided in Tab I.
3.4.8 Rinsate Sample Check
Rinsate blank sample checks are provided in Tab I.
Chloroform
A review of the analytical results reported for rinsate blank samples indicated that none
of the rinsate blank samples contained chloroform. A DIFB was analyzed and was
reported as nondetect.
As previously stated, chloroform has been present in the rinsate blank samples in
previous quarters. Based on the investigation into the source of chloroform, DUSA
believes that the potential source for the chloroform present in the rinsate blank samples
has been addressed as discussed in Section 6.2.
Nitrate
Three rinsate blank samples had reported low level concentrations of nitrate. A DIFB
was analyzed and was reported as nondetect for nitrate. A comparison of the rinsate
blank sample concentration levels to the QAP requirements -that rinsate sample
concentrations be one order of magnitude lower than that of the actual well -indicated
that all of the rinsate blank samples met this criterion.
This criterion however, is inappropriate for the rinsate blank sample data collected during
the nitrate sampling because rinsate blank samples are collected from the decontaminated
portable pump used for well purging, and the pump is not used for sample collection. As
stated in Section 2.2.1, wells that do not have a dedicated pump are purged using a
portable pump. In wells where the portable pump is used for purging, a disposable bailer
is used to collect the samples the day following purging activities.
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Rinsate blank samples collected from the portable pump may be indicative of possible
cross-contamination resulting from pump usage during the purging process. Under the
Mill's sampling program the rinsate blank sample results are not directly applicable to the
sample results due to the use of different equipment (disposable bailers) for the sample
collection. The pump used for purging does not come into contact with the samples at
any time during the sample collection process. Any nitrate left in the well from pump
cross-contamination is reduced or negated by the influx of formation water into the well
in the time after purging and prior to sampling. Because samples are collected the day
following purging and using different equipment, the cross-contamination resulting from
the pump use or decontamination fluids is not applicable to the sample results because the
pump does not contact the samples. As noted in previous reports, an investigation into
the source of the nitrate contamination present in the rinsate blank samples has been
ongoing. Below are the results of the source investigations, and corrective actions are
detailed in Section 6.2.
The nitrate levels reported in the rinsate blank samples for this investigation are similar to
the nitrate rinsate sample concentrations reported for the previous nitrate sampling
programs. Data collected for this ongoing investigation are as follows:
• The nitrate concentrations in the rinsate samples from both the chloroform
sampling program and the nitrate sampling program are just at or slightly above
the detection limit and are not dependent on or affected by the previous sample
concentrations.
• The presence of nitrate in both the chloroform and nitrate sampling programs
indicates that the contamination is due to external factors such as the nitric acid
rinse during the decontamination process and potential absorption of nitrogen
from the nitric acid into the non-stainless steel portions of the purging equipment
including the pump tubing and connectors.
• Nitrate was detected in a minimum of samples collected for the third and fourth
quarter 2010 nitrate sampling programs.
The investigation into the nitrate in the rinsate blanks is continuing, with additional focus
on the sampling equipment and possible absorption of nitrogen from the nitric acid into
the non-stainless steel portions of the equipment as well as the rinsate collection process.
Nitric acid introduced during the decontamination process is the single highest possible
source of nitrate ions. However, there may be some contribution of nitrate from the
decontamination process andlor the purging equipment. To address these issues, the
decontamination process and rinsate collection process are being reviewed to determine if
the purging equipment in combination with the nitric acid wash used during the
decontamination process are causing the nitrate detections in the rinsate blanks.
Corrective actions are described in Section 6.2.
3.4.9 Other Laboratory QAlQC
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 correct
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and complete, (2) analysis infonnation is correct and complete, (3) appropriate analytical
laboratory procedures are followed, (4) analytical results are correct and complete, (5)
QC samples are within established control limits, (6) blanks are within QC limits, (7)
special sample preparation and analytical requirements have been met, and (8)
documentation is complete. In addition to other laboratory checks described above,
DUSA's QA Manager rechecks QC samples and blanks (items (5) and (6)) to confinn
that the percent recovery for spikes and the relative percent difference for spike
duplicates are within the method-specified acceptance limits, or that the case narrative
sufficiently explains any deviation from these limits. Results of this quantitative check
are provided in Tab I.
All lab QAlQC results met these specified acceptance limits except as noted below.
The QAP Section 8.1.2 requires that an MS/MSD (referred to as Duplicate Spike [Matrix
spike] in the QAP) pair be analyzed with each analytical batch. The QAP does not
specify acceptance limits for the MS/MSD pair, and the QAP does not specify that the
MSIMSD pair be prepared on DUSA samples only. Acceptance limits for MS/MSDs are
set by the laboratories. The review of the infonnation provided by the laboratories in the
data packages verified that the QAP requirement to analyze an 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
infonnation only.
The infonnation from the Laboratory QAlQC Summary Reports indicates that the
MS/MSDs recoveries and the associated RPDs for all quarterly chlorofonn samples are
within acceptable laboratory limits for all regulated compounds except as indicated in
Tab I. The recoveries which are above the laboratory established acceptance limits do not
affect the quality or usability of the data because the recoveries above the acceptance
limits are indicative of matrix interference. Furthennore, two of the VOC MS/MSD pair
in Workorder number CIOI00654 were not collected at the Mill, and as such the matrix
interference is not applicable to the Mill samples reported herein. The QAP requirement
to analyze a MS/MSD pair with each analytical batch was met and as such the data are
compliant with the QAP.
The QAP specifies that surrogate compounds shall be employed for all organic analyses,
but the QAP does not specify acceptance limits for surrogate recoveries. The analytical
data associated with the routine quarterly sampling met the requirement specified in the
QAP. The infonnation from the Laboratory QAlQC Summary Reports indicates that the
surrogate recoveries for all quarterly chlorofonn samples were within acceptable
laboratory limits for all surrogate compounds except as indicated in Tab I. The surrogate
recoveries that were outside of acceptance limits above the upper limit or that had a high
recovery, indicate a high bias to the individual sample results. A high bias means that
reported results will be higher than the actual results. There is no effect on the quality or
usability of the data because there are multiple surrogates added to each sample and all
other surrogates were within limits. Furthennore, there are no QAP requirements for
surrogate recoveries.
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The infonnation from the Laboratory QAlQC Summary Reports indicates that all LCS
recoveries were within acceptable laboratory limits for all LCS compounds.
4.0 INTERPRETATION OF DATA
4.1 Interpretation of Groundwater Levels, Gradients and Flow Directions.
4.1.1 Current Site Groundwater Contour Map
As stated above, a listing of groundwater level readings for the current quarter (shown as
depth to groundwater in feet) is included under Tab D. The data from this tab has been
interpreted (kriged) and plotted in a water table contour map, provided under the same
tab.
Also included under Tab D is a groundwater contour map of the Mill site and a more
detailed map of a portion of the Mill site where the four chlorofonn pumping wells are
located, in each case with hand-drawn stream tubes, depicting hydraulic capture from the
pumpmg
The contour maps are based on the December 21, 2010 data for all wells.
4.1.2 Comparison of Current Groundwater Contour Maps to Groundwater
Contour Map for Previous Quarter
The groundwater contour map for the Mill site for the third quarter of2010, as submitted
with the Chlorofonn Monitoring Report for the third quarter of 2010, is attached under
TabE.
A comparison of the water table contour maps for the fourth quarter of 20 1 0 to the water
table contour maps for the previous (third) quarter indicates similar patterns of drawdown
related to pumping of MW-4, MW-26 (TW4-15), TW4-4, TW4-19 and TW4-20. Water
levels and water level contours for the site have not changed significantly since the last
quarter, except for a few locations. Pumping at TW 4-4, which began in the first quarter
of 2010, has depressed the water table near TW4-4, but does not yet appear to have
measurably affected water levels at adjacent wells.
A reported decrease in water level of approximately 7 feet occurred in Piezometer 3.
Reported increases in water levels of approximately 4 feet occurred in well MW-23, of
approximately 21 feet occurred in well TW4-18, of approximately 5 feet occurred in well
TW4-21, and of approximately 20 feet occurred in well TWN-18. A reported decrease in
water level of approximately 12 feet occurred in pumping well TW4-4, and a reported
increase in water level of approximately 33 feet occurred in pumping well TW4-19.
Water level changes at other pumping wells were less than 5 feet.
Water level fluctuations at pumping wells MW-4, MW-26 (TW4-15), TW4-4, TW4-19,
and TW4-20 are due in part to fluctuations in pumping conditions just prior to and at the
time the measurements are taken. The largest decrease (increase in drawdown) of
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approximately 12 feet occurred in well TW4-4 and the largest increase (decrease in
drawdown), of approximately 33 feet, occurred at TW4-19. The reported water levels at
TW 4-18 and TWN-18 (both non-pumping wells) appear to be anomalous based on past
measurements at the wells.
4.1.3 Hydrographs
Attached under Tab Fare hydro graphs showing groundwater elevation In each
chloroform contaminant investigation monitor well over time.
4.1.4 Depth to Groundwater Measured and Groundwater Elevation
Attached under Tab G are tables showing depth to groundwater measured and
groundwater elevation over time for each of the wells listed in Section 2.1.1 above.
4.1.5 Evaluation of the Effectiveness of Hydraulic Capture
Perched water containing chloroform has been removed from the subsurface by pumping
MW-4, MW-26 (TW4-15), TW4-4, TW4-19, and TW4-20. The primary purpose of the
pumping is to reduce total chloroform mass in the perched zone as rapidly as is practical.
Pumping wells upgradient of TW 4-4 were chosen for pumping because 1) they are
located in areas of the perched zone having relatively high permeability and saturated
thickness, and 2) high concentrations of chloroform were detected at these locations. The
relatively high transmissivity of the perched zone in the vicinity of these pumping wells
results in the wells having a relatively high productivity. The combination of relatively
high productivity and high chloroform concentrations allows a high rate of chloroform
mass removal. TW4-4 is located in a downgradient area having relatively high
chloroform concentrations but relatively small saturated thickness, and at a transition
from relatively high to relatively low permeability conditions downgradient of TW4-4 as
indicated by hydraulic testing of TW4-4, TW4-6, and TW4-26 during the third quarter.
Pumping TW 4-4 helps to reduce the rate of chloroform migration in this downgradient
portion of the plume and to mitigate the increase in chloroform concentrations
downgradient ofTW4-4 (for example, at TW4-6).
The impact of pumping is indicated by the water level contour maps attached under Tabs
D and E. Cones of depression have developed in the vicinity of MW-4, MW-26 (TW4-
15), TW4-19, and TW4-20 which continue to remove significant quantities of chloroform
from the perched zone. The water level contour maps indicate that effective capture of
water containing high chloroform concentrations in the vicinity of these pumping wells is
occurring. Overall, the combined capture of MW-4, MW-26 (TW4-15), TW4-19, and
TW4-20 has not changed significantly since the last quarter. As noted in Section 4.1.2, a
decrease in water level (increase in drawdown) of approximately 12 feet occurred at
TW4-4, and an increase in water level (decrease in drawdown) of approximately 33 feet
occurred at TW 4-19. The decrease in drawdown at TW 4-19 has decreased the apparent
capture zone of this well relative to other nearby pumping wells. TW4-4 has apparently
not been pumped long enough for a well-defined capture zone to develop.
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Chloroform concentrations exceeding 70 J..lg/L exist at some locations downgradient of
pumping wells (for example, at TW4-6, located immediately downgradient of TW4-4),
where the lower permeability and relatively small saturated thickness of the perched zone
significantly limits the rate at which chloroform mass can be removed by pumping. By
removing mass and reducing hydraulic gradients, thereby reducing the rate of
downgradient chloroform migration, and allowing natural attenuation to be more
effective, pumping at the productive, upgradient locations has a beneficial effect on this
downgradient chloroform. Pumping at TW 4-4 was implemented during the first quarter
of2010 to improve capture in this downgradient area to the extent allowable by the lower
productivity conditions presumed to exist in this area.
4.2 Review of Analytical Results
4.2.1 Current Chloroform Isoconcentration Map
Included under Tab J of this Report is a current chloroform isoconcentration map for the
Mill site.
4.2.2 Chloroform Concentration Trend Data and Graphs
Attached under Tab K is a table summarizing values for all required parameters, chloride,
nitrate/nitrite, carbon tetrachloride, chloroform, chloromethane, and methylene chloride,
for each well over time.
Attached under Tab L are graphs showing chloroform concentration trends In each
monitor well over time.
4.2.3 Interpretation of Analytical Data
Comparing the analytical results to those of the previous (third) quarter, as summarized in
the table included under Tab K, the following observations can be made:
a) Chloroform concentrations have increased by more than 20% in the following
wells compared to last quarter: TW4-10 and TW4-20;
b) Chloroform concentrations have decreased by more than 20% in the following
wells compared to last quarter: TW4-6, TW4-7, MW-26 (TW4-15), TW4-16,
TW4-19, TW4-21, and TW4-24;
c) Chloroform concentrations have remained within 20% in the following wells
compared to last quarter: MW-4, TW4-1, TW4-2, TW4-4, TW4-5, TW4-11,
TW4-18, TW4-22, and TW4-26; and
d) TW4-3, TW4-8, TW4-9, TW4-12, TW4-13, TW4-14, MW-32 (TW4-17), TW4-
23, and TW4-25 remained non-detect.
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As indicated, fourth quarter chlorofonn concentrations at approximately half the wells
with detected chlorofonn were within 20% of the values reported for the wells during the
third quarter, suggesting that variations are within the range typical for sampling and
analytical error. Wells TW4-6, TW4-7, TW4-10, MW-26 (TW4-15), TW4-16, TW4-19,
TW4-20, TW4-21, and TW4-24 had changes in concentration greater than 20%. Of the
latter, MW-26 (TW4-15), TW4-19 and TW4-20 are pumping wells. TW4-6 is located
adjacent to pumping well TW4-4; TW4-7 is located adjacent to pumping well MW-4;
TW4-10 and TW4-16 are located adjacent to pumping well MW-26 (TW4-15); and
TW4-21 is located adjacent to pumping well TW4-19. Fluctuations in concentrations at
pumping wells and wells adjacent to pumping wells likely result in part from changes in
pumping. The decrease in concentration at TW4-24 from 1.8 to 1.4 J.lglL was only
slightly greater than 20%, and likely the result of analytical error because the
concentration is close to the detection limit.
Pumping well TW4-20 had the highest detected chlorofonn concentration. Since the last
quarter, the chlorofonn concentration in TW4-20 increased from 15,000 J.lglL to 24,000
IlglL, the concentration in adjacent pumping well TW4-19 decreased from 2,000 J.lglL to
1,200 IlglL, the concentration in nearby well TW4-21 decreased from 390 to 200 IlglL,
and the concentration in nearby well TW4-22 remained at 340 IlgiL. Wells TW4-23 and
TW4-25 remained non-detect for chlorofonn. TW4-24, located west of TW4-22, and
TW4-25, located north of TW4-21 , bound the chlorofonn plume to the west and north.
The chlorofonn concentration in TW4-6 decreased from 630 IlgiL to 420 IlgiL. TW4-6,
installed in the second quarter of 2000, was the most downgradient temporary perched
well prior to installation of temporary well TW4-23 in 2007 and temporary well TW4-26
in the second quarter of 2010, and remained outside the chlorofonn plume until the first
quarter of 2009. TW4-6 likely remained outside the chlorofonn plume between the time
of installation and the fourth quarter of 2008 due to a combination of 1) slow rates of
downgradient chlorofonn migration in this area due to low penneability conditions and
the effects of upgradient chlorofonn removal by pumping, and 2) natural attenuation.
TW4-23 and recently installed well TW4-26 (with a chlorofonn concentration of 5.4
IlglL) bound the chlorofonn plume to the south.
The slow rate of chlorofonn migration in the vicinity of TW 4-6 is demonstrated by
comparing the rate of increase in chlorofonn at this well to the rate of increase in the
nearest upgradient well TW 4-4. Concentrations at TW 4-4 increased from non-detect to
more than 2,200 IlgiL within only 2 quarters whereas 16 quarters were required for
concentrations in TW4-6 to increase from non-detect to only 81 IlgiL. This behavior is
consistent with hydraulic tests perfonned at TW4-4, TW4-6, and TW4-26 during the
third quarter of 2010 that indicate a nearly two order of magnitude decrease in
penneability downgradient of TW 4-4. Chlorofonn migration rates in the vicinity of
recently installed well TW4-26 are also expected to be relatively low due to upgradient
pumping and low penneability conditions.
Wells TW4-16 and TW4-26 are located immediately downgradient of the chlorofonn
plume. The concentration in TW 4-16 decreased from 4.3 IlgiL to 3 IlglL, and the
concentration in TW4-26 increased slightly from 5.2 IlgiL to 5.4 IlgiL. Slight expansion
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and contraction of the chloroform plume boundaries in response to changes in upgradient
pumping are expected to impact the concentrations at these wells. Furthermore, because
TW4-26 was installed in May 2010, some of the fluctuation in concentration may result
from lack of stabilization.
5.0 LONG TERM PUMP TEST AT MW-4, TW4-15 (MW-26), TW4-19, TW4-
20, AND TW4-4 OPERATIONS REPORT
5.1 Introduction
As a part of the investigation of chloroform contamination at the Mill site, DUSA has
been conducting a Long Term Pump Test on MW-4, TW4-19, TW4-15 (MW-26) and
TW4-20, and, since January 31,2010, TW4-4. The purpose of the test is to serve as an
interim action that will remove a significant amount of chloroform-contaminated water
while gathering additional data on hydraulic properties in the area of investigation. The
following information documents the operational activities during the quarter.
5.2 Pump Test Data Collection
The long term pump test for MW-4 was started on April 14, 2003, followed by the start
of pumping from TW4-19 on April 30, 2003, from TW4-15 (MW-26) on August 8, 2003,
from TW4-20 on August 4,2005, and from TW4-4 on January 31,2010. Personnel from
Hydro Geo Chern, Inc. were on site to conduct the first phase of the pump test and collect
the initial two days of monitoring data for MW -4. DUSA personnel have gathered
subsequent water level and pumping data.
Analyses of hydraulic parameters and discussions of perched zone hydrogeology near
MW-4 has been provided by Hydro Geo Chern in a separate report, dated November 12,
2001, and in the May 26,2004 Final Report on the Long Term Pumping Test.
Data collected during the quarter included the following:
• Measurement of water levels at MW-4, TW4-19, TW4-15 (MW-26), and
TW4-20 and, commencing regularly on March 1, 2010, TW4-4, on a
weekly basis, and at selected temporary wells and permanent monitoring
wells on a monthly basis.
• Measurement of pumping history, including:
pumping rates
total pumped volume
operational and non-operational periods.
• Periodic sampling of pumped water for chloroform and nitrate/nitrite
analysis and other constituents.
5.3 Water Level Measurements
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Beginning August 16, 2003, the frequency of water level measurements from MW-4,
TW4-15 (MW-26), and TW4-19 was reduced to weekly. From commencement of
pumping TW4-20, and regularly after March 1, 2010 for TW4-4, water levels in these
wells have been measured weekly. Depth to groundwater in all other chloroform
contaminant investigation wells is monitored monthly. Copies of the weekly Depth to
Water monitoring sheets for MW-4, TW4-15 (MW-26), TW4-19, TW4-20 and TW4-4
and the October and November monthly Depth to Water monitoring sheets for all of the
chloroform contaminant investigation wells are included under Tab C. Monthly depth to
water measurements for December are recorded in the Field Data Worksheets included
under Tab B.
5.4 Pumping Rates and Volumes
Table 2 summarizes the recovered mass of chloroform by well per quarter and
historically since the inception of the chloroform recovery program for the five currently-
active pumping wells.
5.4.1 MW-4
Approximately 90,042 gallons of water were pumped from MW-4 during the quarter.
The average pumping rate from MW-4, when the pump was pumping, was approximately
4.5 gpm throughout the quarter. The well is not pumping continuously, but is on a delay
device. The well purges for a set amount of time and then shuts off to allow the well to
recharge. Water from MW -4 was transferred to the Cell 1 evaporation pond through a
pipeline installed specifically for that purpose. During the December 27, 2010, weekly
depth to water and flow measurements it was noted by Field Personnel that power to
MW-4 and TW-4 was turned off due to maintenance activities in the area. Field
Personnel returned the following day and collected the measurements indicating that the
power had been restored.
5.4.2 TW4-19
Approximately 767,970 gallons of water were pumped from TW4-19 during the quarter.
The average pumping rate from TW 4-19, when the pump was pumping, was
approximately 7.3 gpm throughout the quarter. The pump in this well is operating on a
delay. It pumps for approximately one and a half minutes and then is off for two to three
minutes. Water from TW 4-19 was directly transferred to the Cell 1 evaporation pond
through a pipeline installed specifically for that purpose.
5.4.3 TW4-15 (MW-26)
Approximately 60,180 gallons of water were pumped from TW4-15 (MW-26) during the
quarter. The average flow rate from TW4-15, when the pump was pumping, was
approximately 5.3 gpm throughout the quarter. The well is not pumping continuously,
but is on a delay device. The well now purges for a set amount of time and then shuts off
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to allow the well to recharge. The water is directly transferred to the Cell 1 evaporation
pond through a pipeline installed specifically for that purpose.
5.4.4 TW 4-20
Approximately 36,752 gallons of water were pumped from TW4-20 during the quarter.
The average flow rate from TW4-20, when the pump was pumping, was approximately
1.7 gpm throughout the quarter. The well is not purging continuously but is on a delay
device. The well pump is set on a water elevation device. When the water reaches a set
point, the pump turns on until the water level drops to another set point. The water is
directly transferred to the Cell 1 evaporation pond through a pipeline installed
specifically for that purpose.
5.4.5 TW4-4
Approximately 86,872 gallons were pumped from TW4-4 during the quarter. The
average flow rate, when the pump was pumping, was 8.6 gpm. The well is not pumping
continuously, but is set on a water elevation device. When the water reaches a set point,
the pump turns on until the water level drops to another set point. The water is directly
transferred to the Cell 1 evaporation pond through a pipeline installed specifically for that
purpose. During the December 27,2010, weekly depth to water and flow measurements
it was noted by Field Personnel that power to MW -4 and TW -4 was turned off due to
maintenance activities in the area. Field Personnel returned the following day and
collected the measurements indicating that the power had been restored.
5.5 Mass Removed
Chloroform removal was estimated as of the first quarter 2007. Since that estimation the
mass removed by well for each quarter has been compiled in Table 2 below, indicating
that a total of 529.4 pounds of chloroform have been removed to date.
5.6 Inspections
Denison has submitted an Operations and Maintenance Plan, Chloroform Pumping
System, White Mesa Mill, Blanding, Utah, Revision 2.1 to UDEQ for approval on
October 25,2010. Upon approval of that plan, the Mill will commence documenting its
required inspections of the operational status of the chloroform pumping wells on an
inspection form. An example of the form as well as completed reports for the quarter
will be included in future Chloroform reports upon approval by UDEQ. At the time of
the publication of this report approval of the Operations and Maintenance Plan,
Chloroform Pumping System, White Mesa Mill, Blanding, Utah, Revision 2.1 had not
been received.
Operational problems in the pumping wells are summarized above.
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5.7 Conditions That May Affect Water Levels in Piezometers
Water was added to the upper and lower wildlife diversion ponds during the quarter. The
middle wildlife pond had no water added and is dry at this time.
6.0 CORRECTIVE ACTION REPORT
Necessary corrective actions identified during the current monitoring period are described
below.
6.1 Rinsate Blank Sample Nitrate Levels
Identification and Deimition of the Problem
Rinsate Nitrate Levels
DI water used for decontamination does not show the presence of nitrate. Contamination
does not appear to be related to the nitrate presence in the preceding well that was
purged. Rinsate blank samples following high concentration wells appear to be the same
as rinsate blank samples following low concentration wells. Rinsate blank samples
following purging of uncontaminated wells appear to also be contaminated with nitrate.
Presence of nitrate in the rinsate blank samples is not consistent from one sampling event
to the next.
Assignment of Responsibility for Investigation of the Problem
The problem is currently under investigation by the QA Manager.
Investigation and Determination of Cause of the Problem
Rinsate Blank Sample Nitrate Levels
To address the nitrate contamination, DUSA has investigated the potential sources of
nitrate contamination. Nitrile gloves were removed from the rinsate collection process to
eliminate the potential for mobilizing nitrogen compounds present in nitrile gloves
(possibly caused by leaching of nitrogen from the gloves by the nitric acid). In an effort
to address the nitrate contamination, DUSA has reviewed the entire rinsate collection
process and has made additional changes to try and eliminate the source of the nitrate in
the rinsate sample blanks. These additional changes are discussed below.
In addition, DUSA has requested in the revised QAP, submitted June 4, 2010, the
removal of the nitric acid rinse step when samples are not collected for heavy metals,
which will effectively remove the source of nitrate. DUSA will proceed with the removal
of that step only upon approval ofthe QAP revision.
Determination of a Corrective Action to Eliminate the Problem
20
N:IRequired ReportslChloToform Quarterly Monitoring Report\2010 Q4\201O_Q4_Chloroform_Report_text.doc
Rinsate Blank Sample Nitrate Levels
The nitrate source is most likely the nitric acid rinse used during decontamination
procedures, however, additional conditions which may be contributing to the nitrate
detections in the rinsate blank samples are being investigated. The additional items for
investigation include a contribution from the non-stainless steel purging equipment
absorbing nitrate from the nitric acid rinse. To address this potential, all of the non-
stainless steel portions of the purging equipment have been replaced including the pump
tubing and connectors. A single piece of tubing has been placed on the purging pump to
eliminate the absorption or collection of nitric acid by the connectors during the
decontamination process. The tubing is an acid resistant inert material.
Assigning and Accepting Responsibility for Implementing the Corrective Action
Rinsate Blank Sample Nitrate Levels
It will be the joint responsibility of the Director, Compliance and Permitting, and the
Mill's sampling staff to implement the changes and to assess the data to determine if it
has corrected the problems.
Implementing the Corrective Action and Evaluating Effectiveness
Rinsate Blank Sample Nitrate Levels
Nitrate sources will be removed after the removal of the nitric acid rinse from the
decontamination procedure when heavy metals are not collected (assuming requisite
changes to the QAP submitted June 4, 2010 are approved by the Executive Secretary).
Additive effects from the decontaminationlrinsate procedure and the contribution from
the non-stainless steel portions of the purging equipment will be evaluated. To eliminate
the potential for contribution made by the non-stainless steel portions of the purging
equipment, the tubing and all other non-stainless steel items have been replaced.
Verifying That the Corrective Action Has Eliminated the Problem
Verification of the contribution from the purging equipment will be completed after the
first quarter 2011 samples have been collected using the new purging equipment and the
data have been reviewed. If nitrate contamination persists then additional sources will be
researched and the investigation will continue. Removal of the nitric acid from the
decontamination procedure will be completed after the Executive Secretary approval of
the June 4, 2010 QAP revision is received.
6.2 Assessment of Previous Quarter's Corrective Actions
The third quarter 2010 report identified corrective actions for chloroform and nitrate
contamination in the rinsate blank samples. Based on the results of the investigation into
the source of chloroform, DUSA believes that the source for the chloroform present in
the rinsate blank samples has been addressed. Nitrate contamination continues to be
present in the rinsate blank samples and the investigation to determine the source of
nitrate and the associated corrective actions are described above. Closure of the
chloroform investigation is discussed below.
21
N:lRequired Reports\Chloroforrn Quarterly Monitoring Report12010 Q41201O_Q4_Chloroform_Report_text.doc
DUSA believes the previous chlorofonn contamination in the DI water was most likely
the result of chlorination of the intake water used for the DI system. The chlorofonn was
most likely the result of the chlorination of the potable water at the Mill which is
subsequently fed to the DI system. The feed water is free of chlorofonn prior to
chlorination, as it is tested by the Utah Department of Health, Division of Epidemiology
and Laboratory Services on a routine basis.
The DI system is designed to remove the chlorofonn; however, due to the large volume
of DI water processed through the system during the previous chlorofonn sampling
events (e.g. 1050 gallons on the first day of sampling third quarter 2010) to accommodate
the decontamination needs, breakthrough appeared to occur under heavy usage when the
system is "stressed". Removal of chlorofonn and other organics is accomplished by the
"activated carbon" portion of the DI system. The perfonnance of this portion of the DI
system is directly proportional to the volume of water treated and, due to the large
volumes of water treated in a short time, the system became "stressed" and perfonnance
decreased resulting in chlorofonn "breakthrough". This is supported by the chlorofonn
data for the rinsate blank samples for second quarter 2010 as well as the rinsate data from
the third quarter sampling period. In the second quarter 2010, the chlorofonn
concentrations in the rinsate blank samples increased from the beginning of the sampling
event to the end. Also in second quarter 2010 there were rinsate blank samples with
detections associated with samples that were nondetect. In the third quarter 2010, the
rinsate blank samples collected at the beginning of the period had no chlorofonn,
however; later in the sampling program there were chlorofonn detections in the rinsate
blank samples -the result of the DI system breakthrough. Lastly, breakthrough is
suspected as the pH of the rinsate blank samples changes over the course of the sampling
period indicating a change in the overall system operation.
The chlorofonn contamination in the rinsate blank samples has been corrected due to the
reduction of the rinsate blank sample frequency as recommended by UDEQ personnel
present on site for split sampling. Previously, a rinsate blank sample was collected after
each decontamination of the nondedicated pump and prior to the next use of the pump.
Per an e-mail from Mr. Phil Goble, dated, October 4, 2010, rinsate blank samples are
only required at the beginning of the sampling event and at the beginning of each day of
sampling. The frequency change was implemented immediately and it is believed that the
lower usage ofDI water has eliminated the chlorofonn issue.
7.0 CONCLUSIONS AND RECOMMENDATIONS
The water level contour maps for the fourth quarter, 2010 indicate that effective capture
of water containing high chlorofonn concentrations in the vicinity of pumping wells
MW-4, MW-26 (TW4-l5), TW4-l9, and TW4-20 is occurring. TW4-4 has apparently
not been pumped long enough for a well-defined capture zone to develop in the vicinity
of this well.
Fourth quarter chlorofonn concentrations at approximately half the wells with detected
chlorofonn were within 20% of the values reported during the third quarter, suggesting
22
N:IRequired ReportslChlorofonn Quarterly Monitoring Report12010 Q41201O_Q4_Chlorofonn_Report_text,doc
that variations are within the range typical for sampling and analytical error. Changes in
concentration greater than 20% occurred in wells TW4-6, TW4-7, TW4-10, MW-26
(TW4-15), TW4-16, TW4-19, TW4-20, TW4-21, and TW4-24; the concentration in well
TW4-16 decreased from 4.3 ~g/L to 3 ~g/L and the concentration in well TW4-24
decreased from 1.8 ~g/L to 1.4 ~g/L.
Of the wells showing changes in concentration greater than 20%, MW-26 (TW4-15),
TW4-19, and TW4-20 are pumping wells. TW4-6 is located adjacent to pumping well
TW4-4; TW4-7 is located adjacent to pumping well MW-4; TW4-10 and TW4-16 are
located adjacent to pumping well MW-26 (TW4-15); and TW4-21 is located adjacent to
pumping well TW4-19. Fluctuations in concentrations at pumping wells and wells
adjacent to pumping wells likely result in part from changes in pumping. Fluctuations in
concentrations at wells TW4-16 and TW4-26, each located immediately downgradient of
the chloroform plume, likely result from slight expansion and contraction of the
chloroform plume boundaries in response to changes in up gradient pumping.
Furthermore, because TW4-26 was installed in May 2010, some of the past fluctuations
in concentration may result from lack of stabilization. Between the third and fourth
quarters, the concentration in TW4-26, which is the most downgradient temporary well,
increased slightly from 5.2 ~g/L to 5.4 ~g/L.
The highest chloroform concentration was detected at pumping well TW4-20. Between
the third and fourth quarters of2010, the chloroform concentration in TW4-20 increased
from 15,000 ~g/L to 24,000 ~g/L, the concentration in adjacent pumping well TW4-19
decreased from 2,000 ~g/L to 1,200 ~g/L, the concentration in nearby well TW4-21
decreased from 390 to 200 ~g/L, and the concentration in nearby well TW4-22 remained
at 340 ~g/L. Fluctuations in concentrations in these wells are likely related to their
location near the suspected former office leach field source area in addition to variations
in pumping in TW 4-20 and nearby wells. Regardless of these measured fluctuations in
chloroform concentrations, sampling of temporary wells TW 4-24 (located west of TW 4-
22) and TW4-25 (located north of TW4-21), indicates these wells remain outside the
chloroform plume and thus bound the plume to the west and north. Chloroform was not
detected at TW 4-25, and was detected at a concentration of 1.4 ~g/L at TW 4-24.
The chloroform concentration at well TW4-6 decreased from 630 ~g/L to 420 ~g/L.
TW4-6, which remained outside the plume until the first quarter of 2009, is located
within the southernmost portion of the plume. Although fluctuations in concentrations
have occurred, this well likely remained outside the chloroform plume between
installation in the second quarter of 2000 and the fourth quarter of 2008 due to a
combination of 1) slow rates of downgradient chloroform migration in this area due to
low permeability conditions and the effects of up gradient chloroform removal by
pumping, and 2) natural attenuation. Chloroform remained non-detect at downgradient
temporary well TW4-23. TW4-23 and new well TW4-26 (with a chloroform
concentration of 5.4 ~g/L) bound the chloroform plume to the south.
Continued pumping of MW-4, MW-26 (TW4-15), TW4-19, and TW4-20 is
recommended. Pumping these wells, regardless of any short term fluctuations in
concentrations detected at the wells (such as at TW4-20), helps to reduce downgradient
23
N:IRequired Reports\Chloroform Quarterly Monitoring Report1201 0 Q4120 10_04_ Chlorofonn_Report _text.doc
chloroform migration by removing chloroform mass and reducing average hydraulic
gradients, thereby allowing natural attenuation to be more effective. Continued pumping
at TW 4-4 is also recommended to improve capture of chloroform to the extent practical
in the southern portion of the plume where low permeability conditions exist.
8.0 ELECTRONIC DATA FILES AND FORMAT
DUSA has provided to the Executive Secretary an electronic copy of all laboratory
results for groundwater quality monitoring conducted under the chloroform contaminant
investigation during the quarter, in Comma Separated Values (CSV) format. A copy of
the transmittal e-mail is included under Tab M.
24
9.0 SIGNATURE AND CERTIFICATION
This document was prepared by Denison Mines (USA) Corp. on February 24, 2011.
(USA) CORP.
By:
David . Fry enJund
Vice President, Regulatory Affairs and Counsel
25
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 inqtJiry 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 penal 'es for submitting false information, including the. possibility of fine and
ent fi r knowing violations.
Da
Vice President, Regulatory Affairs .and Counsel
Denison Mines (USA) Corp.
26
N:\R"'luim! RcporU\Chlomform Qu4rtcrly Mnnilorill~ ReponlZOIO Q<1\2010_Q4_Chloroform_Rcpolt_,exl.doc:
Tables
Table I: Summary of Well Sampling for the Period
Well Sample Date Date of Lab Report
MW-4 1011 112010 1111112010
TW4-1 10/1412010 11111/2010
TW4-lR 10113/2010 1111112010
TW4-2 10114/2010 1111112010
TW4-3 10/5/2010 10/27/2010
TW4-3R 10/4/2010 10/27/2010
TW4-4 1011112010 1111112010
TW4-5 10113/2010 1111112010
TW4-5R 10112/2010 11/1112010
TW4-6 10113/2010 1111112010
TW4-7 1011312010 1111112010
TW4-8 10/5/2010 10127/2010
TW4-9 10/6/2010 10127/2010
TW4-10 10113/2010 1111112010
TW4-11 10/13/2 010 1111112010
TW4-12 10/5/2010 10127/2010
TW4-13 1015/2010 10/27/2010
TW4-14 10/612010 10/27/2010
TW4-14R 10/512010 10/27/2010
TW4-15 1011112010 1111112010
TW4-16 10/6/2010 10/27/2010
TW4-17 10/6/2010 10/27/2010
TW4-18 10113/2010 1111112010
TW4-19 10/1112010 11 /1112010
TW4-20 1011112010 1111112010
TW4-21 10/13/2 010 1111112010
TW4-22 10113 /20 I 0 1111112010
TW4-23 10/5/2010 10127/2010
TW4-24 10/6/2010 10/27/2010
TW4-25 10/5/2010 10/27/2010
TW4-26 10/6/2010 10/27/2010
TW4-60 10114/2010 1111112010
TW4-65 10/6/2010 10/27/2010
TW4-70 10114/2010 1111112010
Nitrogen
"R" following a well number deisgnates a rinsate sample collected prior to purging of the well of that number.
TW4-60 is a DI Field Blank, TW4-65 is a duplicate of TW4-9, and TW4-70 is a duplicate ofTW4-1.
Highlighted wells are continuously pumped.
Table 2 Chlorofonn Mass Removal Per Well Per Quarter
Quarter MW-4 TW4-1S TW4-19 TW4-20 TW4-4 Quarter Totals
Q12007 36.8 12.9 150.2 87.0 NA 286.9
Q22007 1.4 0.1 0.0 2.5 NA 4.0
Q32007 2.2 0.8 2.9 3.1 NA 9.0
Q42007 1.7 1.0 3.1 4.8 NA 10.6
012008 1.7 0.4 4.6 7.2 NA 13.8
Q22008 1.3 0.5 3.2 9.9 NA 14.8
Q32008 1.2 0.3 15.9 9.3 NA 26.8
Q42008 1.3 0.3 20.7 0.4 NA 22.7
Q12009 1.7 0.4 4.3 3.6 NA 10.0
Q22009 6.8 0.2 3.7 2.8 NA 13.5
Q32009 1.5 0.4 11.1 5.5 NA 18.5
Q42009 4.8 0.6 17.8 26.1 NA 49.4
Q12010 0.9 0.4 2.7 0.4 NA 4.5
Q22010 1.5 1.0 6.8 5.9 1.4 16.5
Q32010 1.3 1.2 2.0 4.9 1.3 10.6
Q42010 1.1 0.5 7.7 7.4 1.2 17.9
Well Totals (pounds) 67.1 21.0 256.6 180.8 4.0 529.4
INDEX OF TABS
Tab A Site Plan and Perched Well Locations White Mesa Site
Tab B Order of Sampling and Field Data Worksheets
Tab C Weekly and Monthly Depth to Water Data
Tab D Kriged Current Quarter Groundwater Contour Map, Capture Zone Map, Capture Zone Details
Map, and Depth to Water Data
Tab E Kriged Previous Quarter Groundwater Contour Map
Tab F Hydrographs of Groundwater Elevations Over Time for Chloroform Monitoring Wells
Tab G Depths to Groundwater and Elevations Over Time for Chloroform Monitoring Wells
Tab H Laboratory Analytical Reports
Tab I Quality Assurance and Data Validation Tables
I-I Field Data QAlQC Evaluation
I-2 Holding Time Evaluation
I-3 Receipt Temperature Check
1-4 Analytical Method Check
I-5 Reporting Limit Evaluation
1-6 Trip Blank Evaluation
1-7 QAlQC Evaluation for Sample Duplicates
1-8 QC Control Limits for Analyses and Blanks
1-9 Rinsate Check
Tab J Kriged Current Quarter Chloroform Isoconcentration Map
Tab K Analyte Concentration Data Over Time
Tab L Chloroform Concentration Trend Graphs
Tab M CSV Transmittal Letter
Tab A
Site Plan and Perched Well Locations White Mesa Site
f -
0
MW-20 • TW4-19
0
PIEZ-1
Q
TWN-1 ~
TW4-26
~
MW-34
-¢-
;{
.r-::;:::;
# II
II
"
I ~I
II
I' II
II
II
1132 II
II
II
II
II
II
II
II
11
II
\
• MW-21
II
II
\\
\\ ~ ~
N ~
SCALE IN FEET
EXeLANATIQN
perched monitoring well
~ ~
temporary perched monitoring well
perched piezometer
temporary perched nitrate
monitoring well
temporary perched monitoring well
installed May, 2010
perched monitoring well installed
August/September, 2010
MW-02 •
PROPERTY
BOUNDARY
l
II
II
{( ...::::
II
II
II
II
II
II
II
'I
CELL NO.1
MW-01 •
~5
o TWN-7
MW-18 •
o TWN-18
o TWN-3
o
TWN-6
o TWN-8
o
TWN-15
o TWN-10
o
TWN-9
PIEZ-1 ..
MW-19 •
PIEZ-2 ..
"'~'I TW4-25
MILL §ITE
PIEZ-3
"
o
U #.v TWN-o 4-21
o 0 ~TW4-20 OTW4-5 . I • _ .. ---rP
TW4
-
9
-26 TW4-1 43 OTW4-12 r 0 OTW-
CELL NO.2
'OTW4-1IbTW4-11 OTW4-13
Q.W.4~ TW4-7~-8
OTW4-1
OTW4-40TW 4-14
o TWN-11
o
TWN-14
o
MW-B5
-9-1
TW4-23 OTW4-6 o
3:fTW4-26
~
1
~ h MW-- _ MW-34 MY!'--9--9--_ •
MW-03 •
MW-20 •
MW-17 •
33 PIEZ-4 .. /~..=::--=--==---./ ---
./~
* PIEZ-5 ..
T37S
T38S
~'---=-~~--=--=--~~-:-" ~=== __ 4 1/ ~':-... 4/' ---=--=--=--=--=--=---II ~~ ---=--=--=--=---ij -71
3000
'I wildlife pond
HYDRO
GEO
CHEM, INC. APPROVED
SJS
MW-22 • 1/
//
//
//
//
//
//
//
//
//
//
SITE PLAN
N' I'
AND PERCHED WELL LOCATIONS
WHITE MESA SITE
DATE REFERENCE
H:1718000/feb11 Iwelloc1 O.srf
~ ~
[J
(
~
'"
FIGURE
TabB
Order of Sampling and Field Data Worksheets
Order of Contamination for 4th Quarter 2010 Chlorofonn Purging Event
Chlorofonn Water Well
Well Sample time Levels Rlnsate date/time level Depth
IO_~ 1W4-3 0.15Q NO to-'I-. OIU 97
10'5 TW4-12 DQO.5 NO ....... ... 101.5
IO·.s. TW4-13 ()8.5P NO 102.5 , .. " C)~ TW~14 ''tab NO ".S-I~ 93
" TW4-17 ,"'!.5 NO 130 Bladder pump :.0 ."
,II) • .!l TW4-23 Q~"5 NO 114
,0-5 TW4-25 O"1~5 NO 134.8
iC 'b TW4-8 080~ NO 125
Ib.t. TW4-9 QOO NO 120
.o.~ TW4-24 Q&!IQ 1.8 112.5
10.~ TW4-16 ()fS(l5 4.3 142
'O·~.10 TW4-26 Q:l~5 5.2 86
10 -1,3 TW4-5 O~I.5 12 Ib·~~ 08,~ 120
lo-\~ TW 4-18 O$lb' 29 137.5 .............
'0-1'3 TW4-l0 0'J'tO 100 113
IO'I~ TW4-21 ~ 390 121
IO-(~ TW4-22IQQ5 580 113.5
lo-I~ TW4-6 l~i!2 630 97.5
10"13 TW4-11 If.!.s 800 100
IO-I!t TW4-7 IQ35 1500 120
• \)-01"\ TW4-1 bbd$ 1500 \0 'i$·'O ll."\.b 110
10·1' MW4 J'\tt-.... 1900 124 Cont. Pumping
10·,1 TW 4-19 ,.,16 2000 125 Cont. Pumping
"." TW4-4 I~ 2100 112 Cont Pumping
10.11 TW4-15 I." lalA 2200 122.5 Cont. Pumpins
\0.1'\ TW4-2 O'-L\~ 3300 120
I~ -II TW4-20 It" 15000 106 Cont. Pumping
10 -'L( TW4-60 0.1. Blank Q2QQ
JO. " TW4-65 Duplicate ~~
10 -\,\ TW4-70 . Duplicate O'~ Comments:
Name: Date: .. .~,.
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TabC
Weekly and Monthly Depth to Water Data
/
I
Date 1 D -S -J 0
Time Well
)~)'l MW-4
IS> 16' TW4-15
1>05 TW4-19
/.>ta TW4-20
I> ?-S TW4-4
Water:
Depth to Water
mmHg 1'23.S Y
Depth Comments
-j.) J..q Flow L(£ (,{)~
Meter ~ 7S0.s l-j. ! 0
7-6. ? t Flow ~.~ 6~.;0
Meter L[ liLU J,g;
C1/.0/ Flow q.? 6P./A-
Meter Yio:1o~_ o!1
7q L-l? Flow L t( M#l
Meter '-6 fL3Jl£ . C( {)
6~-12 Flow !i.1l ~f,A.A.
Meter J!1£t< l!~.5h
qlf/f6
Depth to Water
Date 10 ·If . .l.OIO mmHg ____________ __
Ti me Well DeDth Comments
rsoS MW-4 70 .,~ Flow "1.:2. & p 11
Meter .2 f011 f .'iN
12.'0 TW4-15 78.0.5 Flow 5.'1 G-P~
Meter '1~~5So
NIO TW4-19 en.C») Flow 8·7 6-"'"
Meter \lkc.tc. '3. ,"7
HMo TW4-20 ~'f.~t Flow '.7 ,"PI\.
Meter 'flOs&. '.1
,~'-O TW4-4 6Cl.1f Flow g.1 6-P~
Meter .AO'l..:l'U
Water: r!35t.ts b'
Date 10 -,S: .. 10
Time Well
1l?"~ MW-4
Je;. '13 TW4-15
121l) TW4-19
l~~-~ TW4-20
,
lO..Sh TW4-4
Water:
Depth to Water
mmHg 6;21.7'1
Depth Comments
7CJ,.J'l Flow LJ.s GeM
Meter ?/73a7.s~
~~~.AI.A "" f&.1'5 Flow 5.3 "fA
Meter 4.l"J~b. Sg
let). 10 Flow f? 6 I?P JV\.
Meter >l7fJ:Zi' .. ~O
II."~ Flow , ~ ~f /'\..
Meter JlLJ'~ 0 92 .
6'1.31 Flow q. D ";PA
Meter :l. \ (')') ~(~ 7/')
QS,SRY"
Chloroform Wells
Date 10."'· ,"010 mmHg "8 .1~'i
Time Well Deeth Comments
~! MW-4 1Q·K,
1;lS I TW4-1 '3.'31
I:a.~r TW4-2 &7·90
,~~ TW4-3 ~8.~b
13~ TW4-4 ".0.5
,~ TW4-5 y,..s~
1~11 TW4-6 10 • .5'
~ TW4-7 bi.~~
I~~ TW4-8 "7.0'
1311 TW4-9 s~·01
,~ TW4-10 5'·"
) ~l TW4-11 ~7.gl
11;)5 TW4-12 3t.~
r];l.'? TW4-13 tJt. .'(0
l$l.t TW4-14 88",$
~1.15 TW4-15 1~· 82..
fl.,\~ TW4-16 '-3.8'0
1~!l1 TW4-17 1'.15
'~'f' TW4-18 Sit .54
13"15 TW4-19 ~'.Ol
)'!.'\ TW4-20 7,.1~
16':Jl TW4-21 ,cl.37
IlSO TW4-22 .5"«.0.5
(31~ TW4-23 ~.b.5
''-'it TW4-24 .55.50
I~ TW4-25 !:Ib45t
I!.;l.( TW4-26 ,cc.3C1
~ l4ItA~(' t G.~~ -~ rcr&M'Wl ~fP' 0\«.". ~~ h.~t: .s-w. ~;~~ ... .aAemJ 1t.l'I1l
(2.(!
Iii -lS' ~
Depth to Water
Date 'b -J..t ·10 mmHg, ______ _
Ime WII e D th ep1 c t ommen s
12SL.l MW-4 7~.8{) Flow ~<i?(,rM
Mete r ,'l'15 i L4 7. xi
11-~\ TW4-15 51V.._~ $ J .. , I Flow J. ~ CfM -Meter L·f3;).Q 7.75'
r~~t) TW4-19 QS. '1 Flow I. 5 ~ ptv\
Meter 6 SY 3P.> 7. I ~
1:1'--\3 TW4-20 173 SIJ Flow J 2 GPA
Meter 111457. '-i3
TW4-4 ...
.1) G)J~ <? 7 Flow g.6 bPJ'A ,;....>~ ~
Meter 1-177f.. Lg'6
Water: q 71 ;(,;..5
Date 1\ / l Ito
Time Well
lLf314 MW-4
lLl~~ TW4-15
\4SS TW4-19
\4,.4 TW4-20
l"'~'" TW4-4
Water:
Depth to Water
mmHg '2-=1 cg"q
DeDth Comments
"~.JS Flow ~~p~
Meter 3010JlO, 56
80.;0 Flow 5. S GP.,,4A
Meter '"I3'S4rS-L S 1
q,. fO Flow I.S GIlA
Meter "i-\ l'l3'l. 10
f-2_3~ Flow 1. ~ b f'~
M~ter t"()~''''._:71
61.$1 Flow tz"h c:PA
Meter ~"'3''''.'''1
qg306~
() Date It -52 ·IQ
Depth to Water
. mmHg, ______ _
Ime WII 'e D th eDi c t ommen s
\~l'-MW .. 4 7l.sr Flow £1.4 bPr.
Meter 30 77 f(t:, 311
\~oq TW4 .. 15 ~.2.3>\ Flow 5,g G-fP.l\
Meter t;,-\D17D
15CH' TW4 .. 19 (is Lib Flow I. ';:).. 6PM
Meter 7g26il IL\
J 40 ~ TW4-20 f<S .03 Flow \ '7 & PM
Meter i 1. ~ \ (:) 7 .. f?li
I~ t~ TW4-4 (;~. i 7-Flow gr·5 (..P}ll
Meter .;Q '\ 5 o~ .51)
Water: CfOf'S'"
Depth to Water
Date I! -( 5 . iO mmHg 6 I ~') 7-D
Time Well Depth Comments
133.0 MW-4 1"'7-2 .. OJ~ Flow ~ . .s 6PA
Meter 3'LiS~(). S~
1').3'7 TW4-15 ,By . 'l~ Flow ~.~ 6P"A
Meter YLJLl"lLi.q~
l>CJst TW4-19 Q3,r.rS Flow 6.7 f...PA
Meter 9Lff~25, Go
1~&.IlJ TW4-20 ~..llO Flow 1711 Gf/",\
Meter 12.577'7.5(""-
JOLlS TW4-4 6Gf.IS Flow g.8 6P~
Meter ;l.35:Ul (&
Water: OI3~:lt
Depth to Water
Date 11-1.3'" )"
Ime WII e D th ep~ c t ommen s
I~~ MW-4 "'11.ll1 Flow &..t. r, I~ P A --Meter ~ '11 • .5~
IIC.~ TW4-15 141: ...... ~ ~ 117.7() Flow ~. 0 ('P.M
Meter ~.11.~~
IIWU TW4-19 gq. 'It) Flow 6.6 {.rP,M.
Meter "0,,,'7. ~1
1~1 TW4-20 "7~. 'l.l Flow 1:7 vP~
Meter ~"j7
1~11' TW4-4 ,g .. .,s Flow ~tJ &-PA
Meter ~lLD.s~
.
Water: !3:>\~t
I .I
Ime
JO!)~
''''11
l'!>J 0
1010
,057
(a$)l
WII e
MW-4
TW4-15
TW4-19
TW4-20
TW4-4
Water:
Depth to Water
D th eD' c t ommen s
7l·57 Flow " • ;l.. c,. P-,'1
Meter 327"S?...I~
71." Flow E>., CrP~
Meter "15317,0
ts~.~ Flow .5.1 G-PM
Meter _'lS'iJ.3' .7/
SJ.Q1 Flow 1.7 o.PM
Meter l"O~'1:3 .7'
b 7. q I Flow f(.s t-PM.
Meter ~'igOS7.5
010(7000
() Chloroform Wells
Date 1/-3D -'''It> Name 6'N'jA: t'.1,_6C ~ !toMe HeWby
Time Well Depth Comments
'o~ MW-4 1:!.~J
1~2i TW4-1 6'~.oc>
IO~'1 TW4-2 '"~ .Ob
10 ,~ TW4-3 IiQ·l.5
'2.1~ TW4-4 g~ . .sl
1121 Ci "' TW4-5 577'1
fO~~ TW4-6 1l.00
IQ~ TW4-7 ('8'.0 I
J219 TW4-8 ~7.1.~
1'1' TW4-9 J!,1. !:I!
IOI~ TW4-10 5.1., I
l~aI: TW4-11 Slt~~
i12!q TW4-12 3~~IJ
IQ~ TW4-13 Lf7·12
J04~ TW4-14 I'.a~
1011 TW4-15 19. qi
1i2:l1 TW4-16 6.S.3a
U~2t.~ TW4-17 1",5'
I~'Y TW4-18 ~lr·~2
lI~a TW4-19 7'.~(
1£12 TW4-20 22.21
16~:J TW4-21 "~.~,,
1t'Q:8 TW4-22 ..s~.gl
Ir2J'-TW4-23 (,~,D5
JQCZ:::Z TW4-24 5 iJ.. f):J
10.&3 TW4-25 '"\~."s
la;s6 TW4-26 6'l. go
)
/J (-LvI'; (if
Depth to Water
Date J ~ w ~. J 0
Ime WII e o th ep' c t ommen s
Ic..,n'f MW-4 71~_sO Flow l.j ~ /; PA
Meter ~.34~OR.fb
ll.ll~ TW4-15 ~Sl. tiJ Flow 5~ ~PA
Meter LI ~7 '<"?' 25
14D~ TW4-19 S""A. ..... ~ II.. ~b_~ Flow h \ 6f;v\
Meter 100' 3\6.05.
i'-' II TW4-20 ~17. gO Flow ILS r..f>JI\
Meter 13.~ :124 .l.q
)
14.14 TW4-4 7g.5~ Flow ~,s bPA
~
Meter 25~4.13 :1")
Water: bqooo
Depth to Water
Date ,~-l~-;to 10
Ime WII e D th eD' c t ommen s
huA MW-4 71 .07 Flow 4.4 bP.#\
Meter 3407'15. '1"'\
lUll TW4-15 7,..~~ Flow 3 .4 (.,PA
Meter Yhi17. ~~
13S?, TW4-19 ~ ;'\!>..A.Dll:B-' til. 6 I. 1_ ~ Flow {... 5 GP.M
Meter 100633 "26_1
11..l~~ TW4-20 ?'i.t7 Flow I ~ bPA
Meter j~5L{'(5 . 31
It.i.:l..~ TW4-4 7o~ Flow g.:J-6r.,vt
Meter ;)..5'1115.5.;}..~
Water: a05q~
Depth to Water
Date t:l-2,O-:l.OlO
Time Well Depth Comments
13S~ MW-4 1:1. .01 Flow '"i ."'\ 6.p,II\
Meter ':)~7~5~ .. 8'f
13~ TW4-15 _7,_.O'l Flow S.~
Meter t-fG,S50 __ 0
-,
r3'"50 TW4-19 7Lt .h' Flow ~ .• (rPM
Meter loob~4~ Ob
13'10 TW4-20 ii.g;;t Flow 1·{O
Meter 1~""737A.')'
l'iOO TW4-4 b~.£t3 Flow g. 3 6-PiV\
Meter ~/:'::'~ 17. '3
Water: 9.S4~O
Depth to Water
Date 1';)../:67 bQ(O
Time Well Deeth Comments
11"11.( MW-4 70.11 Flow 4.0
Meter °35L1'l b~,Oq
l~~'\ TW4-15 1'.1:2. Flow 5.'"\ (,.ff'l\
Meter L\bt\t,~o()
Il.{oC) TW4-19 ,,'.15 Flow b.7 CrPM
Meter IOO"~'i8' .,,"
I~~"i TW4-20 1~.g, Flow 1.'1 (,p/A
Meter IlfOD
Il~ TW4-4 ILt~S Flow ~.S
Meter ;l.7~'-{ I q • 4
Water: 11~~S1
'Potv (./ tw-I\.-~ CI-\ ~ CAA-AW ' L-l :\ T t.J y ... y. ;V\-~:V\. t..(.A.N\. c..c,..
~ i x; ~ 13> \\-V 6 .1 ~ fl CI'-' c.r p-E'-G-. G h <-G~ e tl 6 t'\ 1:l...2& -.:l(,),()
Depth to Water
Date I -4 ' . .lQ I \
(me e o th ep' C t ommen s
b8!lS MW-4 "11.03 Flow ,:t • .,. 14.1.,. "'IIlS f".'uI\
Meter 3S7~1.~
li~lg TW4-15 ~1.ci7 Flow 2.0 Fl • ..., I'ttefc,. :;~ I
Meter Lf"1'f&O.O
C>~OO TW4-19 S~~'31 Flow b.'1 bRM
Meter lo''"'~,~'
08'5 TW4-20 10.75 Flow lot{ C;P M
Meter N~c..~ 1~
OS~O TW4-4 7S·7( Flow 5.5 6pH
Meter d-7f1~70.r..
Water: /5()283
TabD
Kriged Current Quarter Groundwater Contour Map, Details Map, and Depth to Water Summary
Quarterly Depth to Water
NAME: Tanner Holliday, Garrin Palmer
Start time: 750
DATE: 12/21/2010 Finish Time: 1240
TIME WELL 1.0. DEPTH TIME WELL 1.0. DEPTH TIME WELL 1.0. DEPTH
921 MW-l 65.20 1008 TW4-1 63.92 837 PIEZ-l 61.76
1203 MW-2 109.90 1010 TW4-2 67.72 832 PIEZ-2 16.88
942 MW-3 83.30 1022 TW4-3 49.37 828 PI EZ-3 45.00
943 MW-3A 85.25 1007 TW4-4 79.83 1001 PI EZ-4 48.90
1009 MW-4 71.32 1019 TW4-5 56.53 959 PIEZ-5 43.69
1220 MW-5 106.02 1006 TW4-6 70.74
1224 MW-11 89.20 1009 TW4-7 67.67 805 TWN-l 49.17
1216 MW-12 108.53 1011 TW4-8 67.31 750 TWN-2 16.45
1231 MW-14 103.90 1021 TW4-9 54.51 810 TWN-3 31.15
1234 MW-1S 106.59 1018 TW4-10 56.96 824 TWN-4 37.45
939 MW-17 75.99 1013 TW4-11 58.00 914 TWN-5 69.76
910 MW-18 70.33 933 TW4-12 39.14 905 TWN-6 74.45
835 MW-19 50.82, 932 TW4-13 46.80 917 TWN-7 90.26
946 MW-20 83.27 930 TW4-14 88.15 907 TWN-8 61.51
951 MW-22 67.20 1024 TW4-15 81.31 839 TWN-9 63.88
1206 MW-23 115.02 1015 TW4-16 65.37 902 TWN-10 81.30
1142 MW-24 114.63 1016 TW4-17 76.27 855 TWN-11 69.44
1227 MW-25 74.73 800 TW4-18 36.99 853 TWN-12 34.81
1024 MW-26 81.31 1049 TW4-19 62.99 842 TWN-13 46.55
1138 MW-27 50.93 1026 TW4-20 68.18 845 TWN-14 62.73
1147 MW-28 77.28 758 TW4-21 58.21 900 TWN-15 92.19
1159 MW-29 102.45 1027 TW4-22 54.56 850 TWN-16 48.31
1156 MW-30 76.80 1005 TW4-23 65.83 847 TWN-17 34.40
1152 MW-31 68.95 1028 TW4-24 55.97 820 TWN-18 37.79
1016 MW-32 76.27 755 TW4-25 46.25 1039 TWN-19 52.95
1212 MW-33 Dry 1103 TW4-26 64.51
1239 MW-34 108.05
1208 MW-35 112.39
Comments:
/I
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II // ~ ~.;:::-. ~=~
~-.:::­~9'
~
# II
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I'
I'
"
"
,I
32
• M~-21
II \ \ \ \, \,
MW.(J2
.5503
PROPERTY
BOUNDARY
MW-«J
2
~
MW-20 ~60 57 N ~~ ~~ ~~ ~~
MW.Q1 e5S82
MW·18
e5587
05586
TWN·10
05584 TWN-9
~. ,
PIEZ-co 12
,,::--./:I!!i"-----6? ----
~? y
__ 55
~~ --=-~~ -=--=--=--~, ~ /?-=--=--':::::..-:::=-4 --=--=--=--=--=--=-~
s.,60
~----
o
MW-22
.5450
0 5555
PIEZ-1
(;I 5594
TWN-4 <> 5604
TW4-26
~5537
SCALE IN FEET
EXPLANATION
perched monitoring well showing
elevation in feet amsl
temporary perched monitoring well
showing elevation in feet amsl
perched piezometer showing
elevation in feet amsl
temporary perched nitrate monitoring well
showing elevation in feet amsl
3000
MW·22 "'"
II
//
//
//
//
//
//
//
//
//
//
NOTE: MW-4, MW-26, TW4-4, TW4-19 and TW4-20 are pumping wells
HYDRO
GEO
KRIGED 4th QUARTER, 2010 WATER LEVELS
WHITE MESA SITE
~ ~
[J
(
~
\
MW-34
-¢-5492
temporary perched monitoring well installed
May, 2010 showing elevation in feet amsl
perched monitoring well installed
August/September, 2010
CHEM, INC. APPROVED DATE REFERENCE FIGURE
showing elevation in feet amsl SJS H:n18000/feb11/wI1210.srf
/J r(
\1
,-J
\\ # ~ ~..:::--. ~=~
~~ g ~
lI.,f
II '
"
"
" .. ~.JI
1,
"
"
"
:' :: 32
"
" II
,I
II
II
,I
II
I'
MW-02
ess03
MW~ ~ry-
PROPERTY
BOUNDARY
MW-03
72
MW-01 e5582
MW-18
e5587
05586
TWN-10
05584 TWN-9
PIEZ-c-----l.J. 115594
(pili
~2
0S604 -4
TW:;;t::J
~5537
llf' __
~~--==.:= ~' -
,/-? ;r
_ 55.
~ ~
[]
(
• M~.21
\ \\ ~
=-
o
MW-22
.5450
0 5555
PIEZ-1
" 5594
lWN4 <> 5604
lW4-26
~5537
MW-34
-¢-5492
N
\ \ ~~ ~ ~~ ~~ MW-20 ~60 e 5457
~~ ~~ ~~ ~~~ --=--=--=--=-~~:-~ ~-=--=--"~.,,p --=. -=--""-~ --=--=--~60
SCALE IN FEET
EXPLANATION
perched monitoring well showing
elevation in feet amsl
temporary perched monitoring well
showing elevation in feet amsl
perched piezometer showing
elevation in feet amsl
temporary perched nitrate monitoring well
showing elevation in feet amsl
temporary perched monitoring well installed
May, 2010 showing elevation in feet amsl
perched monitoring well installed
August/September, 2010
showina elevation in feet amsl
3000
,':; ... ; ..... , .... estimated capture zone l l ,',' boundary stream tubes
, , : : resulting from pumping
HYDRO
GEO
CHEM, INC.
MW-22 '"
e5450 "
II
//
//
//
//
//
//
//
//
//
// . -NOTE: MW-4, MW-2S, TW4-4, TW4-19 and TW4-20 are pumping wells
APPROVED
KRIGED 4th QUARTER, 2010 WATER LEVELS
AND ESTIMATED CAPTURE ZONES
WHITE MESA SITE
DAlE REFERENCE FIGURE
SJS H:I718000/feb11/wI1210cz2.srf
"
EXPLANATION
,-,',' ,-
" " ,',' estimated capture zone l l l l boundary stream tubes
, , " resulting from pumping
N
1
o 150 300
SCALE IN FEET
<>TWN-1 .. . r-___ N_O_T_E_:M __ W_-4_'_M_W __ -2_6~,TW ___ 4_-4_,_TW __ 4~-1-9-,-an_d_TW ___ 4_-2_0_a_re~pu_m~p~in~g~w __ el_ls __________________________ ~ temporary perched mtrate momtorlng
5599 well showing elevation in feet amsl ~i KRIGED 4thQUARTER, 2010 WATER LEVELS
. HYDRO AND ESTIMATED CAPTURE ZONES o TW4-1 temporary perched monitoring well WHITE MESA SITE
5555 showing elevation in feet amsl ,. GEO (detail map)
• MW-32 perched monitoring well showing , CHEM, INC.
5549 elevation in feet amsl
DATE
SJS H:l718000/feb11/wI1210cz.srf
TabE
Kriged Previous Quarter Groundwater Contour Map
p
((
\1
~
II 1/ ~ ~.:::-. ~=~
~-::::­/J ~
!l.lf
/,I I'
II
II I ~II
11
I
:1
]1
II
II
]1
II
II
]1
32
PROPERTY
BOUNDARY
MW-01 e5582
MW-18 e5587
~5
TWN-10
~f
05583 TWN-9
,d?.I-.:::: -=--==.=-=--
~? y
------------55
~ ~
[]
(
-1-21
\1
I, ~
o
MW-22
.5450
0 5555
PIEZ-1
(Ii) 5593
TWN-4 <> 5605
TW4-26
~5537
MW-34
-¢-5492
N
" \ ~~ ~~ ~~ ~" MW-20
e5456
~~ ~~ ~~ ~~ --=--=-"~--=--~~:-'\. ~ -=--=.-~-:::-4 --=.. -=--=--=--=--=--=-
-_~ ___ I
SCALE IN FEET
EXPLANATION
perched monitoring well showing
elevation in feet amsl
temporary perched monitoring well
showing elevation in feet amsl
perched piezometer showing
elevation in feet amsl
temporary perched nitrate monitoring well
showing elevation in feet amsl
temporary perched monitoring well installed
May. 2010 showing elevation in feet amsl
perched monitoring well installed
August/September. 2010
showing elevation in feet amsl
3000
6'.,80
MW-22 ~ II
//
//
//
//
//
//
//
//
//
//
NOTE: MW-4, MW-26, TW4-4, TW4-19 and TW4-20 are pumping wells
HYDRO
GEO
CHEM,INC. APPROVED
KRIGED 3rd QUARTER, 2010 WATER LEVELS
WHITE MESA SITE
DATE REFERENCE FIGURE
SJS H :1718000/nov1 O/w1091 O.sri
"
TabF
Hydrographs of Groundwater Elevations Over Time for Chloroform Monitoring Wells
....... tv o -o o
Depth Below Measuring Point (ft.)
00 o 0\ o .j:>. o tv o 0
09/25/79
02/06/81
06/21 /82
· 11 /03/83
03/17/85
07/30/86
12112/87
04/25/89 ~
09/07/90 ~
01120192 ~ ;-..,
.. 06/03 /93 ~ ~ "'0
10/16/94 ..... I:r"
0
.. 02/28/96 < ~ ..,
· 07112197 t-3 ..... a ~ · 11/24/98 ~
04/07/00 a' -a
08120101 "'0 --
0'1102/03
05/16/04
09/28/05
-0211 0107
-06/24/08
1 L/06/09
03 /2111 1
08 /02112
00
Vl
00 o
Depth Below Measuri ng Point (ft.)
-J
Vl
-J o 0\
Vl '" o Vl Vl VI 0
11/08/99
04/06/00
09/03/00
01131 101
06/30/01
11 /27/0 1
-04/26/02
09/23/02
02/20103
,. 07120103
• 12/17/03
-05/15/04
10/12/04
03/11/05
-08 /08/05
01/05/06
06104/06
11/01 /06
03/3 1/07
08/28/07
01/25/08
06/23/08
11/20108
-04/19109
-09/16/09
02113/10
0711311 0
1211011 0
05/09/11
10106/11
~ ~ "'* I
"""" ~ ~ .~
""1
~ ~ ~ 9
S' ~ ""1
~ ,... a ~ -~ .
C" -a ~ --
00 Vl
00 o
Depth Below Measuring Point (ft.)
-....J Vl -....J o 0'1 Vl 0'1 o Vl Vl Vl 0
11108/99
,-04/06/00
09/03/00
01/31/01
06/30101
-11127/01
-04/26/02
09/23/02
02/20103 ~ ~ 07/20103 ~ I N
12/17/03 ~ -05/15/04 ~ ~ .,
10112104 ~ ~
03/11/05 "'CS ~ =-
08/08/05 0 -< ~ 01/05/06 .,
~
06/04/06
_. a ~
-11101106 -. ~
03/31/07 0" -08128/07 a
"'CS --0]/25/08
06/23/08
11/20108
04/19/09
09/16/09
02/13110
07/13110
] 211 0/1 0
05/09/11
10106/11
Depth Below Measuring Point (ft.)
-.l -.l 0\ 0\ lJl lJl .j:>. .j:>.
lJl 0 lJl 0 lJl 0 lJl 0
11/29/99
04/27/00
-09/24/00
02/21101
07/21101
12118/01
OS/17/02
10114/02
03113/03 ~ ~ 08110/03 ~ I ~
01107/04 ~ 0610S/04 ..... ~ ..,
11102104 ~ ~
04/01/0S "'C ..... =-
~ 08/29/0S 0 -< ~
-01126/06 ..,
~
06/2S/06 .,.. a ~
11122/06 -~
04/21107 ~ -09/18/07 a "'C ----02/1S108
07/14/08
-12/11/08
~ OS/1 0/09
-10107/09
-03/06/10
-08/03/10
-12/31/10
,-OS/30/11
10/27111
...... ...... o
...... o o
Depth Below Measuring Point (ft.)
'-0 o 00 o -.I o 01 o VI 0
OS/25100
-09/02/00
-12111/00
,-03/21101
-06/29/01
-10107/01
01115102
04/25102
08/03/02
11111102
02/19/03
05130103 ~
09/07/03 ~ ~
12/16/03 I ~
03/25104 ~ ,-07/03/04 .....
-10/11104 ~ .,
01119/05 ~ ~
-04/29/05 "C .....
-08/07/05 =-0 11115105 -< ~ 02/23106 .,
06/03/06 ~ .,..
09111106 = ~
12/20106 .-
03/30107 ~
C'"
07/08/07 -= 10116107 "C --01124/08
05103/08
08111108
11119108
-02/27/09
06/07/09
-09/15109
12/24/09
04/03/10
07112110
-10/20/10
01/28111
05108/1]
08/16/11
0'1 N 0'1 o
Depth Below Measuring Point (ft.)
Vl
00
Vl 0'1 Vl ~ Vl N Vl 0
01102/00
-04111100
,-07/20100
10/28/00
-02/05/01
-05/16/01
08/24/01
12/02/01
03/12/02
-06120102
09/28/02
01/06/03
04/16/03 ~
07/25/03 ~ ~
11/02/03 I til
02/10104 ~ -05/20104 ......
08/28/04 ~ .,
12/06/04 ~ ~
03/16/05 ~ ......
06/24/05 =-
10102/05 0 <
-01/10106 ~ .,
-04/20106 ~ ...
-07/29/06 a
-11106106 ~ -.
02/14/07 ~
05/25/07 C'" -09/02/07 a ~ 12/11/07 --
03/20108
06/28/08
10106/08
01114109
04/24/09
08/02/09
11/10109
02/18/10
05/29/10
09/06110
12/15/10
03/25/11
07/03/11
-10/11111
'0 o 00 \Jl 00 o
Depth Below Measuring Point (ft.)
-..J \Jl -..J o 0\ \Jl 0\ o \Jl
\Jl
\Jl o
05/25/00
09/02/00
12/11100
03/21101
06/29/01
10107/01
01/15/02
04/25/02
08/03/02
11111/02
02119/03
05/30103 1-3
09/07/03 ~
12116103 ~ I 0'1 03/25/04 ~ 07/03/04 ~
10/11104 ~ .,
01/19/05 ~ ~ 04/29/05 ""0 ~
08/07/05 =-
11115105 0 -<
02/23/06 ~ .,
06/03/06 1-3 ....
09/11106 e
~
12/20106 -.
03/30107 ~
07/08/07 0'" -e 10/16/07 ""0 ---01124/08
05/03/08
08/11108
11/19/08
02127/09
06/07/09
09/15/09
12/24/09
04/03/10
07/12/10
10/20/10
01/28/11
05108111
08/16/11
00 V1 00 o
Depth Below Measuring Point (ft.)
-..l V1 -..l o 0"1 V1 0"1 o V1 V1 V1 0
11129/99
-03/08/00
06116100
09/24/00
01102101
04112/01
-07/21/01
10/29/01
02/06/02
-05/17/02
08/25/02
12/03/02
03/13103 ~
06/21103 ~ ,&:io.
09/29/03 I -...l
01/07/04 ~ 04/16/04 ......
~ 07/25/04 tI)
'"t
11102104 0
tI)
02/10105 "'C ......
05/21/05 :r"
08129/05 0 -<
12/07/05 tI)
'"t
~ 03117106 ~ ..
06/25/06 a
10103/06 tI) -.
0111 1107 ~
04/21/07 C'" --07/30107 a "'C 11107107 ---02/15/08
05/25/08
09/02/08
12/11108
03/21109
06/29/09
10107/09
01/15/10
04/25110
08/03110
11111/10
02119111
05/30111
09/07/11
00 o -...J 00 -...J 0\
Depth Below Measuring Point (ft.)
-...J ~ -...J tv -...J o 0\ 00 0\ 0\ 0\ ~ 0\ tv 0\ 0
11/29/99
03/08/00
-06116100
09/24/00
01102/01
-04112/01
07/21101
] 0129/01
02/06/02
05117/02
-08/25102
] 2/03/02
03113/03 ~
06/21103 ~ ~
09/29/03 I QC
0]/07/04 ~ 04116/04 .....
07/25104 tD ""'I
11102/04 ~ tD
02110/05 "'0 .....
05/21105 =-
08/29/05 0 <
12/07/05 tD ""'I
03117/06 ~ ...
-06/25/06 e
10/03/06 tD --01111/07 ~
-04/21107 C'" --07/30107 e
"'0
11/07/07 '-'
02115108
OS/25108
-09/02/08
12111108
,-03121109
06/29/09
10/07/09
01115/10
04/25/10
08/03/10
,-11111110
,. 02/19111
,. 05/30111
09/07111
-...] o 0'1 00 0'1 0'1
Depth Below Measuring Point (ft.)
0'1 ~ 0'1 N 0'1 o VI
00
VI 0'1 VI ~ VI N VI 0
12/20/99
03/29/00
07/07/00
10115/00
01123/01
05/03/01
08111/01
11119/01
02/27/02
06/07/02
09115/02
12/24/02
04/03/03 ~
07/12/03 ~ ~
10/20/03 I
\C
01128/04 ~ 05/07/04 ......
08115/04 ~ ..,
11/23/04 ~ ~
03/03/05 "'C ......
06/11/05 =-
09119/05 0 <
12/28/05 ~ ..,
04/07/06 ~ ...
07/16/06 e
10/24/06 ~ .-
02/01/07 ~
05112/07 C'" -08/20/07 e
"'C
11/28/07 --
03/07/08
-06/15/08
09/23/08
01/01109
04/11/09
07/20/09
-10/28/09
02/05110
-05/16/10
08/24110
12/02110
03112/11
06/20111
09/28/11
Ul
\0
Ul 00
Depth Below Measuring Point (ft.)
Ul -...] Ul 0\ Ul
Ul
Ul .j>. Ul w
01/03/02
04/13102
07/22/02
] 0130102
· 02/07/03
05/18/03
08/26/03
-12/04/03
-03/13104
-06/21104 ~
09/29/04 ~
· 01/07/05 ~ I I-l
-04/17/05 0
~ 07/26/05
"""" 1 1103/05 ~ .,
· 02111/06 ~ ~ "'C 05/22/06 """" I="
08/30/06 0 -< · 12/08/06 ~ .,
03118107 ~ •.
06/26/07 a ~
10/04/07 --~
01/12/08 C'" --04/21108 a "'C
07/30/08 --
-11/07/08
-02/15/09
05/26109
09/03/09
12/]2/09
03/22/10
,. 06/30110
10108/10
,. 01116/11
,. 04/26/11
08/04/11
00 o -..l VI
Depth Below Measuring Point en.)
-..l o 0\ VI ~ VI VI VI 0
01 /03/02
041l 3/02
-07/22/02
10/30/02
" 02/07/03
05/18/03
08/26/03
,-12/04/03
03/13/04
-06/21 /04
09/29/04-
01 /07/05
04/17/05
07 /26/05
11 /03/05
0211 1/06
OS/22/06
08130106
12/08/06
03/18/07
06126107
10/04/07
01/1 2/08
04/21 /08
07130108
11/07/08
02/15109
OS/26/09
09/03/09
12/1 2/09
03/22/10
-06/30110
1 0108/1 0
-01 /16/11
04/26/11
08/04111
~ ~ ,&:I. I ~
~
~ .... ~ ...
~ ~ Io'C .... =-~ ~ ...
I-i3 ....
S ~ --~
C'" -e
"'CI '-"
.j::.
.j::.
.j::. w .j::.
N
Depth Below Measuring Point (ft.)
.j::. ....... .j::. a w
\C)
w
00
w
-...l
w
0\
w Vl w .j::.
I. 08/23/02
,. 12/01/02
· 03/11103
06119/03
09/27/03
01105104
04/14/04
07/23/04
10/31/04
02/08/05 ~ ~
05119105 ....
I I-"
08/27/05 N
~ 12/05/05 ...... ~
03115106 .,
~
06/23/06 ~
"'C ......
10101106 =-0 01/09/07 -< ~
04/19/07
.,
~ .,..
07/28/07 e ~
11105107 .-~
02/13/08 C'" -05/23/08 e
"'C --08/31108
12/09/08
· 03119109
-06/27/09
· 10105/09
01113110
04/23/10
-08/01/10
11109110
02/17111
05/28111
Depth Below Measuring Point (ft.)
0 \0 00 ~ 0\ VI ~ 0 0 0 0 0 0
08 /23/02
J 2/01 /02
-03 /11 /03
06/19103
09/27/03
01 /05104
0411 4/04
-07/23/04
10/31 /04 ~ 02/08/05
~
05/1 9105 I p...l
.~
08/27/05 ~ 12/05105 ft
-03 /15106 "1
~
06/23106 ~ "'0 .....
10/01 /06 =-~ 01 /09/07 ~ "1 0411 9107 ...., .,.
07/2 8/07 a ~
11 /05107 .-~ .
02/13/08 C'" -,-OS/23108 51 "C. '-" 08/31 /08
12/09/08
03/19/09
-06/27/09
,.. 10/05109
o J/l3/1 0
-04/23110
-08 /01110
11 /0911 0
02117/1 J
05128/11
\0 VI \0
"""
\0 W
Depth Below Measuring Point (ft.)
\0 N \0 ...... \0 o 00 \0
00
00 00 -.l
-08/23/02
12/01/02
0311 1/03
06/19/03
09/27/03
01/05/04
04/14/04
07/23/04
10/31/04
~ 02/08/05 ~
05/19/05 ~ I
"""" 08/27/05 ~
~ 12/05/05 ..... ~
03/15106 .,
~
06/23/06 ~ "'0 .....
10101/06 =-
01109/07 0 -< ~
~ 04/19/07
.,
~ ...
07/28/07 a ~
11105107 -~
02113/08 C'" -05/23/08 a
"'0 ---08/31/08
12/09/08
-03/19109
-06/27/09
10105/09
01/13110
-04/23/10
08/0111 0
11/09110
-02/17/11
05/28/11
...... o o 1.0 o
Depth Below Measuring Point (ft.)
00 o -...l o 0'1 o VI o .j:>. 0
08/23/02
-12/01102
03111/03
06/19/03
09/27/03
-01/05/04
-04/14/04
-07/23/04
-10/31104
-02/08/05
05/19/05
08/27/05
12/05/05
-03/15106
06/23/06
10101/06
01109/07
04119/07
-07/28/07
11/05/07
-02/13/08
05/23/08
08/31/08
12/09/08
03/19/09
06/27/09
10105/09
-01113110
-04/23110
-08/01/10
11109/10
02/17/11
05/28/11
~ ~ I
"'"'" U'I
~ N 0'\ "-
~
"""'" ~ ..,
~ ~ "'CI ~
0 -< ~ ..,
~ .... e ~ -. ~
C" -e "'CI "-
Depth Below Measuring Point (ft.)
()() -J -J 0\ 0\ VI VI 0 v, 0 VI 0 VI 0
-08/23/02
,-12/01/02
0311 1/03
06119/03
09/27/03
01/05104
04/14/04
07/23/04
10/31 /04
!-3 02/08/05 ~ 05119105 I
)0000&
08/27/05 0'\
~ 12/05105 ..... ~
03115106 "1
~
06/23/06 ~ ~
1 % 1/06 =-
01 /09/07 ~ ~
04119/07 "1
1-3 ....
07/28/07 e ~
11 /05107 -. ~
02/13/08 a' --05/23/08 a "CS '-' 08/31 /08
12/09/08
03119/09
06/27/09
10/05/09
01 /13/10
04/23110
08/01 /10
11/09/1 0
02/17/1 ]
OS/2811 1
00 .j:::. 00 lJ.)
00 tv
Depth Below Measuring Point (ft.)
00 ...... 00 o -...l \0 -...l 00
-...l -...l
-...l 0\ -...l
VI
08/23/02
12/01/02
03/11/03
06/19103
.~ 09/27/03
01/0S/04
04/14/04
07123104
10131/04
02/08/0S ~ ~
OS/19/0S
.,.
I ~
08/27/0S ......:a
'§: 12/0S/OS ~ 03/15106 w N
06/23/06 --
10101/06 ~ .....
01109107 tI> "1
04/19/07 ~ tI> "'C
07/28/07 ..... =-
1110S/07 0 -< tI> -02/13/08 "1
~
05/23/08 ....
== -08/31108 tI> ---12/09/08 ~
C" -03/19109
== "'C 06/27/09 --
10/0S/09
01/13110
04/23/10
08/01110
11109/10
-02/17/11
OS/28/11
--l o 0'1 o
~ ~t
~ ~
~
~
\
~
~
~
~
~
~
(
~
I
Depth Below Measuring Point (ft.)
Vl o ~ o w o tv o
~-----r-+
-
..... o o
08/23/02
12/01/02
03/11/03
06/19/03
09/27/03
01/05104
04114104
07/23 /04
10/31/04
~ 02/08/05 ~
05/19/05 ~ I ~
08127105 QC
~ 12/05105 tt
03/15/06 ...
~
06123106 .~
l"CJ
10101 /06 ~
01 /09/07 0 -< ~
04119107 ...
~ ...
07/28/07 51 ~
11 /05/07 -. ~
02113108 C" -05 /23/08 a "C
08/31 /08 ---
J2 /09108
03119109
06/27/09
10/05109
OJ /13110
04/23110
08/0111 0
11 /09/10
02/17111
05/28/11
...... o o '" o
Depth Below Measuring Point (ft.)
00 o -.J o 0'1 o Vl o .j::>.
0
-08/23/02
-12/01/02
03/11/03
06119103
09/27/03
01/0S/04
04/14/04
07/23/04
10/31/04
02/08/0S
OS/19/0S
08/27/0S
-12/0S/OS
0311S/06
~ 06/23/06
10101/06
01/09107
-04/19/07
07/28/07
11/0S/07
02/13108
OS/23/08
08/31108
-12/09/08
03/19/09
-06/27/09
1010S/09
01113/10
04/23110
08/01/10
11109110
,-02117/11
OS/28/11
~ ~ .... I )ooool
\C
~ ~ ...... ~ ..,
0 ~
"'C ...... =-0 < ~ ..,
~ •. a ~ -. ~
C'" -a "'C --
-o o '-0 o
Depth Below Measuring Point (ft.)
00 o -.J o 0\ o U'I o ~ 0
07/29/0S
091 17/0S
-11/06/0S
· 12/26/0S
,. 02114106
,. 04/0SI06
· OS/2S/06
-07/14/06
09102/06
10/22106
• 12111/06
,. 01/30107 1-3
· 03/21/07 ~ ~ ,. OS/I0107 I N
06/29107 Q
08118/07 ~
10107/07 ..... ~
11/26107 '"l
~ 01/1S/08 ~ "'C 03/0S/08 ..... =-04/24/08 0
06/13108 -< ~
08/02/08 '"l
1-3 09/21/08 ... e ,. 11110108 ~
12/30108 --~ 02118109 C'"
04/09109 -e
05/29/09 "'C '-'
07118109
-09/06/09
10/26/09
,-12/1S/09
~ 02/03/10
,. 03/25/10
~. 05/14/10
07/03110
-08/22/10
10/11/10
11/30/10
01119/11
03110/11
04/29/11
0\ ..,. 0\ N
Depth Below Measuring Point (ft.)
0\ o VI
00
VI
0\
VI ..,. VI N
07/29/05
09117105
11/06/05
12/26/05
02114106
04/05/06
05/25/06
07114106
09/02/06
10/22/06
12111106
" 01/30107
03/21/07
-05110107
06/29/07
08118/07
10107/07
11/26/07
01115108
-03/05/08
04/24/08
-06/13/08
08/02/08
09/21/08
11110108
12/30108
02118109
04/09/09
05/29/09
07/18/09
09/06/09
10/26/09
12/15/09
02/03/10
03/25110
05/14110
07/03/10
08/22110
10111110
~ 11130110
01119111
03110111
04/29111
1-3 ~ ~ I ~
~
~ ...... ~ ..,
~ ~ "'0 ...... =-0 -< ~ ..,
1-3 .... a ~ .-~
0'" -a "'0 --
VI \0
Depth Below Measuring Point (ft.)
VI
00
L
VI
00 VI -.J
t>
VI -.J VI 0'1
---\ ~ ~
VI 0'1 VI VI VI VI
~
'" > 4'
VI ~ VI ~
~
-
-
I-
-
-
-
-
-
-
-
-
-
-
07/29/05
09/17/05
11/06/05
12/26/05
02114106
04/05/06
05/25/06
07/14/06
09/02/06
10/22/06
12/11/06
01130107
03/21107
05/10107
06/29/07
08/18/07
10107/07
11126107
01115/08
03/05/08
04/24/08
06/13/08
08/02/08
09/21/08
11 II 0108
12/30108
02/18/09
04/09109
05/29109
07/18/09
09/06/09
1 0126109
12/15/09
02/03110
03/25/10
05/14/10
07/03110
08122110
1 011111 0
11130110
01119111
03/10111
04/29111
~ ~ ...
I N N
~ ...... ~ '"'I
~ ~ "'0 ...... =-0 -< ~ '"'I
~ ... a ~ -. ~
C'" -a
"'C "-'
Depth Below Measuring Point (ft.)
0'1 0'1 0'1 0'1 0'1 0'1 0'1 0'1 '" '" 00 00 -.l -.l 0'1 0'1
09/13/07
-11/02/07
12/22/07
0211 0108
03/31/08
-05/20108
07/09/08
08/28108 1-3 ~
10/17/08 ~ I N ~ 12/06/08 ~ 01/25/09 ..... ('t) ..,
03116109 ~ ('t)
"'C
05/05/09 ..... =-
06/24/09 0 < ('t) ..,
08113109 1-3 ....
10102/09 a ('t)
11121109
.-~
C'" -01110110 a
"'C --03/01110
-04/20110
06/09110
07/29110
09/17110
11/06/10
-12/26110
-02/14111
04/05/11
VI
-....J ~
VI
-....J tv
VI -....J o
Depth Below Measuring Point (ft.)
VI ?'I
00
VI 0\ 0,
VI 0\ ~
VI 0\ tv
VI ?'I o
VI VI ~ VI
00 0,
VI VI
~
i-09113/07
-11/02/07
12/22/07
02/10108
03/31/08
05/20108
07/09/08
08/28/08 ~ ~
10117108 ~ I N
12/06108 ~
~ 01/25/09 .... t\)
""'I
03/16109 ~ t\)
"'C
05/05/09 .... =-
06/24/09 0 < t\)
""'I
08/13/09 ~ ....
10/02/09 = t\) -.
11121109 ~
CO -01110/10 = "'C '-'
03/01110
04/20/10
06109/10
07/29/10
09117110
11/0611 0
-12/26/10
02114111
04/05111
-J o 0\ o
Depth Below Measuring Point (ft.)
VI o
~
~
v
<
~
~
11 ~
~
~
-
"'" o 1.,) o tv o o o .
-
.
09/13/07
11 /02/07
12/22/07
02110108
03/31 /08
05120108
07/09/08
08/28/08 ~ ~
10/17/08 01:;0.
I N
12/06/08 U'I
~ 01 /25/09 ..... ('D
""l
03116/09 ~ ~ "'CI
05105109 ..... =-
06/24/09 0 < ('D
""l
08/13/09 ~ ....
10/02/09 !3 ('D ..-
1112 1109 ~
.~ -o I I lOll 0 !3
"'CI '-'
03/01/10
04/20/10
06/09/10
07/29/10
09117/'10
1.1/06/10
12/26/10
02114111
04/05111
L lILOIlO
o I/SllIl
~ e .-.c
~ OL/6V60 '--'
~
S ...
E-oc r.. .~ > 0
.c:I .... ~ ~ ~ ... .e 01/01 /80
~
I,C
N ~ ~
E-oc
011lZ/90
Ol/Z060
~ ~ -~ ~
V) 0 V) 0
V) \0 \0 t--..,t .,f ..,t ..,t
\0 \0 \0 \0
("y) lu~od .i3upnsaaw MOI~S: lnd~a
o 00
<:t \0
TabG
Depths to Groundwater and Elevations Over Time for Chloroform Monitoring Wells
Water Levels and Data over Time
White Mesa Mill -Well MW 4
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,620.77 5,622.33 1.56 123.6
5,527.63 09/25/79 94.70 93.14
5,527.63 10/10/79 94.70 93.14
5,528.43 01110/80 93.90 92.34
5,529.93 03/20/80 92.40 90.84
5,528.03 06/17/80 94.30 92.74
5,528.03 09115/80 94.30 92.74
5,527.93 10108/80 94.40 92.84
5,527.93 02/12/81 94.40 92.84
5,525.93 09/01184 96.40 94.84
5,528.33 12/01/84 94.00 92.44
5,528.13 02/01185 94.20 92.64
5,528.33 06/01185 94.00 92.44
5,528.93 09/01185 93.40 91.84
5,528.93 10101185 93.40 91.84
5,528.93 11/01/85 93.40 91.84
5,528.83 12/01185 93.50 91.94
5,512.33 03/01186 110.00 108.44
5,528.91 06119/86 93.42 91.86
5,528.83 09/01/86 93.50 91.94
5,529.16 12/01186 93.17 91.61
5,526.66 02/20/87 95.67 94.11
5,529.16 04/28/87 93.17 91.61
5,529.08 08114/87 93.25 9l.69
5,529.00 11/20/87 93.33 91.77
5,528.75 01/26/88 93.58 92.02
5,528.91 06/01/88 93.42 91.86
5,528.25 08/23/88 94.08 92.52
5,529.00 11102/88 93.33 91.77
5,528.33 03/09/89 94.00 92.44
5,529.10 06/21/89 93.23 91.67
5,529.06 09/01/89 93.27 91.71
5,529.21 11/15/89 93.12 91.56
5,529.22 02/16/90 93.11 91.55
5,529.43 05/08/90 92.90 91.34
5,529.40 08/07/90 92.93 91.37
5,529.53 11113/90 92.80 91.24
5,529.86 02/27/91 92.47 90.91
5,529.91 05121/91 92.42 90.86
5,529.77 08/27/91 92.56 9l.00
5,529.79 12/03/91 92.54 90.98
5,530.13 03/17/92 92.20 90.64
5,529.85 06111/92 92.48 90.92
5,529.90 09/13/92 92.43 90.87
Water Levels and Data over Time
White Mesa Mill -Well MW 4
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,620.77 5,622.33 1.56 123.6
5,529.92 12/09/92 92.41 90.85
5,530.25 03/24/93 92.08 90.52
5,530.20 06/08/93 92.13 90.57
5,530.19 09/22/93 92.14 90.58
5,529.75 12114/93 92.58 91.02
5,530.98 03/24/94 91.35 89.79
5,531.35 06/15/94 90.98 89.42
5,531.62 08/18/94 90.71 89.15
5,532.58 12/13/94 89.75 88.19
5,533.42 03/16/95 88.91 87.35
5,534.70 06/27/95 87.63 86.07
5,535.44 09/20/95 86.89 85.33
5,537.16 12/11/95 85.17 83.61
5,538.37 03/28/96 83.96 82.40
5,539.10 06/07/96 83.23 81.67
5,539.13 09/16/96 83.20 81.64
5,542.29 03/20/97 80.04 78.48
5,551.58 04/07/99 70.75 69.19
5,552.08 05/11/99 70.25 68.69
5,552.83 07/06/99 69.50 67.94
5,553.47 09/28/99 68.86 67.30
5,554.63 01/03/00 67.70 66.14
5,555.13 04/04/00 67.20 65.64
5,555.73 05/02/00 66.60 65.04
5,556.03 05/11100 66.30 64.74
5,555.73 05/15/00 66.60 65.04
5,555.98 OS/25/00 66.35 64.79
5,556.05 06/09/00 66.28 64.72
5,556.18 06116/00 66.15 64.59
5,556.05 06/26/00 66.28 64.72
5,556.15 07/06/00 66.18 64.62
5,556.18 07/13/00 66.15 64.59
5,556.17 07/18/00 66.16 64.60
5,556.26 07/25/00 66.07 64.51
5,556.35 08/02/00 65.98 64.42
5,556.38 08/09/00 65.95 64.39
5,556.39 08115/00 65.94 64.38
5,556.57 08/31/00 65.76 64.20
5,556.68 09/08/00 65.65 64.09
5,556.73 09/13/00 65.60 64.04
5,556.82 09/20/00 65.51 63.95
5,556.84 09/29/00 65.49 63.93
5,556.81 10/05/00 65.52 63.96
Water Levels and Data over Time
White Mesa Mill -Well MW 4
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,620.77 5,622.33 1.56 123.6
5,556.89 10112/00 65.44 63.88
5,556.98 10119/00 65.35 63.79
5,557.01 10/23/00 65.32 63.76
5,557.14 11109/00 65.19 63.63
5,557.17 11114/00 65.16 63.60
5,556.95 11121/00 65.38 63.82
5,557.08 11130100 65.25 63.69
5,557.55 12/07/00 64.78 63.22
5,557.66 01114/01 64.67 63.11
5,557.78 02/09101 64.55 62.99
5,558.28 03/29101 64.05 62.49
5,558.23 04/30101 64.10 62.54
5,558.31 05/31/01 64.02 62.46
5,558.49 06122/01 63.84 62.28
5,558.66 07110101 63.67 62.11
5,559.01 08/20101 63.32 61.76
5,559.24 09/19101 63.09 61.53
5,559.26 10/02/01 63.07 61.51
5,559.27 11108/01 63.06 61.50
5,559.77 12/03/01 62.56 61.00
5,559.78 01/03/02 62.55 60.99
5,559.96 02/06/02 62.37 60.81
5,560.16 03/26/02 62 .17 60.61
5,560.28 04/09102 62.05 60.49
5,560.76 05/23/02 61.57 60.01
5,560.58 06/05/02 61.75 60.19
5,560.43 07/08/02 61.90 60.34
5,560.44 08/23/02 61.89 60.33
5,560.71 09111102 61.62 60.06
5,560.89 10/23/02 61.44 59.88
5,557.86 11/22/02 64.47 62.91
5,561.10 12/03/02 61.23 59.67
5,561.39 01109/03 60.94 59.38
5,561.41 02/12/03 60.92 59.36
5,561.93 03/26/03 60.40 58.84
5,561.85 04/02/03 60.48 58.92
5,536.62 05/01103 85.71 84.15
5,528.56 06/09/03 93.77 92.21
5,535.28 07/07/03 87.05 85.49
5,534.44 08/04/03 87.89 86.33
5,537.10 09111/03 85.23 83.67
5,539.96 10102/03 82.37 80.81
5,535.91 11107/03 86.42 84.86
Water Levels and Data over Time
White Mesa Mill -Well MW 4
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,620.77 5,622.33 1.56 123.6
5,550.70 12/03/03 71.63 70.07
5,557.58 01115/04 64.75 63.19
5,558.80 02110104 63.53 6l.97
5,560.08 03/28/04 62.25 60.69
5,560.55 04/12/04 61.78 60.22
5,561.06 05/13/04 6l.27 59.71
5,561.48 06/18/04 60.85 59.29
5,56l.86 07/28/04 60.47 58.91
5,529.l7 08/30104 93.16 91.60
5,536.55 09/16/04 85.78 84.22
5,529.00 10/11/04 93.33 91.77
5,54l.55 11116/04 80.78 79.22
5,541.l2 12/22/04 81.21 79.65
5,540.59 01118/05 81.74 80.18
5,542.85 02/28/05 79.48 77.92
5,537.91 03115/05 84.42 82.86
5,548.67 04/26/05 73.66 72.l0
5,549.53 05/24/05 72.80 71.24
5,544.36 06/30105 77.97 76.41
5,545.16 07/29/05 77.17 75.61
5,544.67 09/12/05 77.66 76.10
5,541.28 09/27/05 81.05 79.49
5,536.96 12/07/05 85.37 83.81
5,546.49 03/08/06 75.84 74.28
5,546.15 06/13/06 76.18 74.62
5,545.l5 07/18/06 77.18 75.62
5,545.91 11117/06 76.42 74.86
5,545.90 02/27/07 76.43 74.87
5,548.16 05/02/07 74.17 72.61
5,547.20 08113/07 75.13 73.57
5,547.20 10110107 75.13 73.57
5,547.79 03/26/08 74.54 72.98
5,545.09 06/25/08 77.24 75.68
5,550.36 08/26/08 71.97 70.41
5,550.39 10/14/08 7l.94 70.38
5,542.25 03/03/09 80.08 78.52
5,542.25 06/24/09 80.08 78.52
5,550.l9 09/10109 72.14 70.58
5,550.94 12/11/09 71.39 69.83
5,546.08 03/11/10 76.25 74.69
5,550.98 05/1111 0 71.35 69.79
5,548.33 09/29110 74.00 72.44
5,55l.01 12/21/10 71.32 69.76
Water Levels and Data over Time
White Mesa Mill -Well TW 4-1
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
z 5,620.77 5,622.33 1.02 1l1.04
5,540.98 11108/99 81.35 80.33
5,541.13 11109199 81.20 80.l8
5,541.23 01102/00 81.10 80.08
5,541.23 01110100 81.10 80.08
5,540.98 01117/00 81.35 80.33
5,541.03 01124/00 81.30 80.28
5,541.03 02/01100 81.30 80.28
5,540.93 02/07/00 81.40 80.38
5,541.23 02114/00 81.10 80.08
5,541.23 02/23/00 81.10 80.08
5,541.33 03/01100 81.00 79.98
5,541.43 03/08/00 80.90 79.88
5,541.73 03115/00 80.60 79.58
5,541.43 03/20100 80.90 79.88
5,541.43 03/29100 80.90 79.88
5,541.18 04/04/00 81.15 80.13
5,540.93 04/13/00 81.40 80.38
5,541.23 04/21100 81.10 80.08
5,541.43 04/28/00 80.90 79.88
5,541.33 05/01100 81.00 79.98
5,541.63 05111/00 80.70 79.68
5,541.33 05115/00 81.00 79.98
5,541.63 05/25/00 80.70 79.68
5,541.63 06/09100 80.70 79.68
5,541.65 06116/00 80.68 79.66
5,541.63 06126/00 80.70 79.68
5,541.85 07/06/00 80.48 79.46
5,541.79 07/13/00 80.54 79.52
5,541.91 07/18/00 80.42 79.40
5,542.17 07/27/00 80.l6 79.14
5,542.31 08/02/00 80.02 79.00
5,542.43 08/09100 79.90 78.88
5,542.41 08115/00 79.92 78.90
5,542.08 08/31100 80.25 79.23
5,542.93 09101100 79.40 78.38
5,542.87 09108/00 79.46 78.44
5,543.09 09/13/00 79.24 78.22
5,543.25 09/20100 79.08 78.06
5,543.44 10/05/00 78.89 77.87
5,544.08 11109/00 78.25 77.23
5,544.49 12/06/00 77.84 76.82
5,546.14 01114/01 76.19 75.17
5,547.44 02/02/01 74.89 73.87
Water Levels and Data over Time
White Mesa Mill-Well TW4-1
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
z 5,620.77 5,622.33 l.02 111.04
5,548.71 03129101 73.62 n.60
5,549.20 04/30101 73.13 n.11
5,549.64 05/31/01 72.69 7l.67
5,549.94 06/22/01 72.39 71.37
5,550.25 07110101 72.08 7l.06
5,550.93 08/10101 71.40 70.38
5,551.34 09/19101 70.99 69.97
5,551.59 10102/01 70.74 69.72
5,549.64 05/31/01 72.69 71.67
5,549.94 06121101 72.39 71.37
5,550.25 07/10/01 72.08 7l.06
5,550.93 08/20/01 71.40 70.38
5,551.34 09/19/01 70.99 69.97
5,551.59 10/02/01 70.74 69.72
5,551.87 11/08/01 70.46 69.44
5,552.40 12/03/01 69.93 68.91
5,552.62 01103/02 69.71 68.69
5,553.12 02/06/02 69.21 68.19
5,553.75 03/26/02 68.58 67.56
5,553.97 04/09/02 68.36 67.34
5,554.56 05/23/02 67.77 66.75
5,554.54 06/05/02 67.79 66.77
5,554.83 07/08/02 67.50 66.48
5,555.29 08/23/02 67.04 66.02
5,555.54 09/11102 66.79 65.77
5,555.94 10/23102 66.39 65.37
5,556.02 11/22/02 66.31 65.29
5,556.23 12/03/02 66.10 65.08
5,556.49 01109/03 65.84 64.82
5,556.67 02112/03 65.66 64.64
5,557.15 03/26/03 65.18 64.16
5,557.23 04/02/03 65.10 64.08
5,556.07 05/01/03 66.26 65.24
5,554.28 06/09/03 68.05 67.03
5,553.84 07/07/03 68.49 67.47
5,553.39 08/04/03 68.94 67.92
5,553.06 09111/03 69.27 68.25
5,553.33 10102/03 69.00 67.98
5,553.25 11107/03 69.08 68.06
5,553.82 12/03/03 68.51 67.49
5,555.61 01115/04 66.n 65.70
5,556.32 02/10104 66.01 64.99
5,557.38 03/28/04 64.95 63.93
Water Levels and Data over Time
White Mesa Mill -Well TW 4-1
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
z 5,620.77 5,622.33 1.02 111.04
5,557.79 04/12/04 64.54 63.52
5,558.35 05/13/04 63.98 62.96
5,560.03 06/18/04 62.30 61.28
5,560.36 07128/04 61.97 60.95
5,557.96 08/30104 64.37 63.35
5,557.24 09/16/04 65.09 64.07
5,556.28 10111/04 66.05 65.03
5,556.17 11116/04 66.16 65.14
5,556.21 12/22/04 66.12 65.10
5,555.82 01118/05 66.51 65.49
5,555.96 02128/05 66.37 65.35
5,556.01 03115/05 66.32 65.30
5,556.05 04/26/05 66.28 65.26
5,556.00 05/24/05 66.33 65.31
5,555.97 06/30105 66.36 65.34
5,555.90 07/29105 66.43 65.41
5,556.22 09112/05 66.11 65.09
5,556.25 12/07/05 66.08 65.06
5,556.71 03/08/06 65.62 64.60
5,556.98 06114/06 65.35 64.33
5,560.95 07118/06 61.38 60.36
5,557.07 11107/06 65.26 64.24
5,558.1 0 02/27/07 64.23 63.21
5,557.82 05/02/07 64.51 63.49
5,557.82 08114/07 64.51 63.49
5,557.63 10110107 64.70 63.68
5,559.48 03/26/08 62.85 61.83
5,560.35 06/24/08 61.98 60.96
5,560.58 08/26108 61.75 60.73
5,560.62 10114/08 61.71 60.69
5,560.65 03/10/09 61.68 60.66
5,560.66 06/24/09 61.67 60.65
5,560.36 09110109 61.97 60.95
5,560.53 12111109 61.8 60.78
5,560.50 03111110 61.83 60.81
5,559.94 05/11110 62.39 61.37
5,559.01 09/29110 63.32 62.30
5,558.41 12/21110 63.92 62.90
Water Levels and Data over Time
White Mesa Mill-Well TW4-2
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,623.10 5,625.00 1.90 121.125
5,548.85 11108/99 76.l5 74.25
5,548.85 11109/99 76.l5 74.25
5,548.60 01102/00 76.40 74.50
5,548.80 01llO/00 76.20 74.30
5,548.60 01117/00 76.40 74.50
5,549.00 01124/00 76.00 74.10
5,548.90 02/01100 76.10 74.20
5,548.90 02/07/00 76.lO 74.20
5,549.30 02/14/00 75.70 73.80
5,549.40 02/23/00 75.60 73.70
5,549.50 03/01/00 75.50 73.60
5,549.60 03/08/00 75.40 73.50
5,549.50 03/15/00 75.50 73.60
5,550.20 03/20100 74.80 72.90
5,550.00 03129/00 75.00 73.lO
5,549.70 04/04/00 75.30 73.40
5,549.80 04/13/00 75.20 73.30
5,550.00 04/21100 75.00 73.10
5,550.l0 04/28/00 74.90 73.00
5,550.lO 05/01/00 74.90 73.00
5,550.40 05/11/00 74.60 72.70
5,550.lO 05115/00 74.90 73.00
5,550.40 05/25/00 74.60 72.70
5,550.40 06/09/00 74.60 72.70
5,550.50 06116/00 74.50 72.60
5,550.35 06126/00 74.65 72.75
5,550.45 07/06/00 74.55 72.65
5,550.45 07/13/00 74.55 72.65
5,550.46 07/18/00 74.54 72.64
5,550.61 07/27/00 74.39 72.49
5,550.66 08/02/00 74.34 72.44
5,550.68 08/09/00 74.32 72.42
5,550.70 08115/00 74.30 72.40
5,550.82 08/31100 74.18 72.28
5,551.15 09/08/00 73.85 71.95
5,551.25 09113/00 73.75 71.85
5,551.32 09/20100 73.68 71.78
5,546.11 10105/00 78.89 76.99
5,546.75 11109/00 78.25 76.35
5,547.16 12/06/00 77.84 75.94
5,552.46 01/26/01 72.54 70.64
5,552.48 02/02/01 72.52 70.62
5,551.38 03/29/01 73.62 71.72
Water Levels and Data over Time
White Mesa Mill-Well TW4-2
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,623.10 5,625.00 l.90 121.125
5,551.87 04/30101 73.13 71.23
5,552.31 05/31/01 72.69 70.79
5,552.61 06/21101 72.39 70.49
5,552.92 07/10101 72.08 70.18
5,553.60 08120101 71.40 69.50
5,554.01 09/19/01 70.99 69.09
5,554.26 10102/01 70.74 68.84
5,554.42 11/08/01 70.58 68.68
5,555.07 12/03/01 69.93 68.03
5,555.02 01103/02 69.98 68.08
5,555.19 02/06/02 69.81 67.91
5,555.43 03/26/02 69.57 67.67
5,555.67 04/09/02 69.33 67.43
5,556.01 05123/02 68.99 67.09
5,556.07 06/05/02 68.93 67.03
5,556.19 07/08/02 68.81 66.91
5,556.32 08123/02 68.68 66.78
5,556.53 09/11102 68.47 66.57
5,557.00 10/23/02 68.00 66.10
5,556.70 11122/02 68.30 66.40
5,557.29 12/03/02 67.71 65.81
5,557.48 01109/03 67.52 65.62
5,557.63 02/12/03 67.37 65.47
5,558.11 03/26/03 66.89 64.99
5,558.15 04/02/03 66.85 64.95
5,553.99 05/01/03 71.01 69.11
5,549.26 06/09/03 75.74 73.84
5,548.42 07/07/03 76.58 74.68
5,548.03 08/04/03 76.97 75.07
5,547.50 09/11/03 77.50 75.60
5,547.96 10102/03 77.04 75.14
5,547.80 11/07/03 77.20 75.30
5,548.57 12/03/03 76.43 74.53
5,554.28 01115/04 70.72 68.82
5,555.74 02/10104 69.26 67.36
5,557.18 03/28/04 67.82 65.92
5,557.77 04/12/04 67.23 65.33
5,558.35 05/13/04 66.65 64.75
5,558.47 06/18/04 66.53 64.63
5,559.28 07128/04 65.72 63.82
5,554.54 08/30104 70.46 68.56
5,552.25 09/16/04 72.75 70.85
5,549.93 10/11104 75.07 73.17
Water Levels and Data over Time
White Mesa Mill -Well TW 4-2
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,623.10 5,625.00 1.90 121.125
5,550.17 11116/04 74.83 72.93
5,550.65 12/22/04 74.35 72.45
5,550.23 01118/05 74.77 72.87
5,550.37 02/28/05 74.63 72.73
5,550.41 03115/05 74.59 72.69
5,550.46 04/26/05 74.54 72.64
5,550.60 05/24/05 74.40 72.50
5,550.49 06/30105 74.51 72.61
5,550.39 07/29/05 74.61 72.71
5,550.61 09112/05 74.39 72.49
5,550.57 12/07/05 74.43 72.53
5,551.58 03/08/06 73.42 71.52
5,551.70 06114/06 73.3 71.40
5,550.80 07118/06 74.20 72.30
5550.80 11/07/06 74.20 72.30
5553.17 02/27/07 71.83 69.93
5,552.34 05/02/07 72.66 70.76
5,552.30 08114/07 72.7 70.80
5,552.48 10/10107 72.52 70.62
5,554.86 03/26/08 70.14 68.24
5,555.51 06/24/08 69.49 67.59
5,555.57 08/26/08 69.43 67.53
5,555.71 10/14/08 69.29 67.39
5,556.01 03110109 68.99 67.09
5,556.53 06/24/09 68.47 66.57
5,556.22 09/10109 68.78 66.88
5,556.81 12/11109 68.19 66.29
5,558.15 03111110 66.85 64.95
5,557.91 05111110 67.09 65.19
5,557.52 09/29110 67.48 65.58
5,557.28 12/21110 67.72 65.82
Water Levels and Data over Time
White Mesa Mill -Well TW 4-3
Total or
Measuring Measured Total
Water Land Point Depth to Depth to
Elevation Surface Elevation Length Of Date Of Water Water
(z) (LSD) eMP) Riser (L) Monitoring (blw.Ml) (bJw.LSD) Total Depth Of Well
5,631.21 5,632.23 1.02 141
5,565.78 11129/99 66.45 65.43
5,566.93 01/02/00 65.30 64.28
5,567.03 01/10100 65.20 64.18
5,566.83 01117/00 65.40 64.38
5,567.13 01124/00 65.10 64.08
5,567.33 02/01/00 64.90 63.88
5,567.13 02/07/00 65.10 64.08
5,567.43 02114/00 64.80 63.78
5,567.63 02/23/00 64.60 63.58
5,567.73 03/01/00 64.50 63.48
5,567.83 03/08/00 64.40 63.38
5,567.70 03115/00 64.53 63.51
5,568.03 03/20100 64.20 63.18
5,567.93 03/29/00 64.30 63.28
5,567.63 04/04/00 64.60 63.58
5,567.83 04113/00 64.40 63.38
5,568.03 04/21/00 64.20 63.18
5,568.23 04/28/00 64.00 62.98
5,568.13 05101100 64.10 63.08
5,568.53 05/11/00 63.70 62.68
5,568.23 05115100 64.00 62.98
5,568.53 05/25100 63.70 62.68
5,568.61 06/09/00 63.62 62.60
5,568.69 06/16/00 63.54 62.52
5,568.45 06/26/00 63.78 62.76
5,568.61 07/06/00 63.62 62.60
5,568.61 07/06/00 63.62 62.60
5,568.49 07113/00 63.74 62.72
5,568.55 07118/00 63.68 62.66
5,568.65 07127/00 63.58 62.56
5,568.73 08/02/00 63.50 62.48
5,568.77 08/09/00 63.46 62.44
5,568.76 08116/00 63.47 62.45
5,568.95 08/31100 63.28 62.26
5,568.49 09/08/00 63.74 62.72
5,568.67 09/13/00 63.56 62.54
5,568.96 09/20100 63.27 62.25
5,568.93 10105/00 63.3 62.28
5,569.34 11/09/00 62.89 61.87
5,568.79 12/06/00 63.44 62.42
5,569.11 01103/01 63.12 62.10
5,569.75 02/09/01 62.48 61.46
5,570.34 03/28/01 61.89 60.87
Water Levels and Data over Time
White Mesa Mill -Well TW 4-3
Total or
Measuring Measured Total
Water Land Point Depth to Depth to
Elevation Surface Elevation Length Of Date Of Water Water
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Total Depth Of Well
5,631.21 5,632.23 1.02 141
5,570.61 04/30101 61.62 60.60
5,570.70 05/31101 61.53 60.51
5,570.88 06/21101 6l.35 60.33
5,571.02 07/10101 61.21 60.19
5,571.70 08/20101 60.53 59.51
5,572.12 09/19101 60.11 59.09
5,572.08 10102/01 60.15 59.13
5,570.70 05/31101 61.53 60.51
5,570.88 06/21101 6l.35 60.33
5,571.02 07/10101 61.21 60.19
5,571.70 08/20101 60.53 59.51
5,572.12 09/19101 60.11 59.09
5,572.08 10102/01 60.15 59.13
5,572.78 11/08/01 59.45 58.43
5,573.27 12/03/01 58.96 57.94
5,573.47 01/03/02 58.76 57.74
5,573.93 02/06/02 58.30 57.28
5,574.75 03/26/02 57.48 56.46
5,574.26 04/09102 57.97 56.95
5,575.39 05/23/02 56.84 55.82
5,574.84 06/05102 57.39 56.37
5,575.33 07/08/02 56.90 55.88
5,575.79 08/23/02 56.44 55.42
5,576.08 09111102 56.15 55.13
5,576.30 10123/02 55.93 54.91
5,576.35 11122/02 55.88 54.86
5,576.54 12/03/02 55.69 54.67
5,576.96 01/09103 55.27 54.25
5,577.11 02112/03 55.12 54.10
5,577.61 03/26/03 54.62 53.60
5,572.80 04/02/03 59.43 58.41
5,577.89 05101/03 54.34 53.32
5,577.91 06/09103 54.32 53.30
5,577.53 07/07/03 54.70 53.68
5,577.50 08/04/03 54.73 53.71
5,577.71 09111103 54.52 53.50
5,577.31 10102/03 54.92 53.90
5,577.33 11107/03 54.90 53.88
5,577.34 12/03/03 54.89 53.87
5,578.24 01115104 53.99 52.97
5,578.38 02110104 53.85 52.83
5,578.69 03128104 53.54 52.52
5,579.15 04112/04 53.08 52.06
Water Levels and Data over Time
White Mesa Mill -Well TW 4-3
Total or
Measuring Measured Total
Water Land Point Depth to Depth to
Elevation Surface Elevation Length Of Date Of Water Water
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Total Depth Of Well
5,631.21 5,632.23 1.02 141
5,579.47 05/13/04 52.76 51.74
5,579.53 06118/04 52.70 51.68
5,580.17 07/28/04 52.06 51.04
5,580.20 08/30/04 52.03 51.01
5,580.26 09/16/04 51.97 50.95
5,580.12 10/11/04 52.11 51.09
5,579.93 11/16/04 52.30 51.28
5,580.07 12/22/04 52.16 51.14
5,579.80 01118/05 52.43 51.41
5,580.35 02/28/05 51.88 50.86
5,580.57 03/15/05 51.66 50.64
5,580.86 04/26/05 51.37 50.35
5,581.20 OS/24/05 51.03 50.01
5,581.51 06/30/05 50.72 49.70
5,581.55 07/29/05 50.68 49.66
5,581.68 09112/05 50.55 49.53
5,581.83 12/07/05 50.4 49.38
5,564.92 03/08/06 67.31 66.29
5,582.73 06/13/06 49.50 48.48
5,582.33 07/18/06 49.90 48.88
5,582.75 11/07/06 49.48 48.46
5583.35 02/27/07 48.88 47.86
5,559.57 05/02/07 72.66 71.64
5,583.29 08114/07 48.94 47.92
5,583.49 10/10/07 48.74 47.72
5,584.95 03/26/08 47.28 46.26
5,584.59 06/24/08 47.64 46.62
5,584.55 08/26/08 47.68 46.66
5,584.03 10/14/08 48.2 47.18
5,583.64 03/03/09 48.59 47.57
5,587.34 06/24/09 44.89 43.87
5,582.90 09/10/09 49.33 48.31
5,583.27 12/11/09 48.96 47.94
5,583.63 03111110 48.6 47.58
5,583.82 05111/10 48.41 47.39
5,583.51 09/29/10 48.72 47.70
5,582.86 12/21/10 49.37 48.35
Water Levels and Data over Time
White Mesa Mill -Well TW 4-4
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,612.301 5,613.485 1.184 114.5
5,512 .145 OS/25/00 101.34 100.16
5,518.985 06/09/00 94.50 93.32
5,512.145 06116/00 101.34 100.16
5,517.465 66/26/00 96.02 94.84
5,520.145 07/06/00 93.34 92.16
5,521.435 07/13/00 92.05 90.87
5,522.005 07/18/00 91.48 90.30
5,522.945 07/27/00 90.54 89.36
5,523.485 08/02/00 90.00 88 .8 2
5,523.845 08/09/00 89.64 88.46
5,523.885 08115/00 89.60 88.42
5,524.555 09/01100 88.93 87.75
5,513.235 09/08/00 100.25 99.07
5,516.665 09/13/00 96.82 95 .64
5,519.085 09/20/00 94.40 93 .22
5,522.165 10/05/00 91.32 90 .14
5,524.665 11 /09/00 88.82 87.64
5,518.545 12/06/00 94.94 93.76
5,527.695 01/03/01 85.79 84.61
5,529.085 02/09/01 84.40 83.22
5,529.535 03/27/01 83.95 82.77
5,530.235 04/30/01 83.25 82.07
5,530.265 05/31101 83.22 82.04
5,534.405 06/22/01 79.08 77.90
5,533.145 07/10/01 80.34 79.16
5,534.035 08/20/01 79.45 78.27
5,534.465 09119/01 79.02 77.84
5,533.285 10/02/01 80 .20 79.02
5,530.265 05/31 /01 83.22 82.04
5,534.405 06/21 /01 79.08 77.90
5,533.145 07110/01 80 .34 79.16
5,534.035 08/20/01 79.45 78.27
5,534.465 09119/01 79.02 77.84
5,533.285 10/02/01 80.20 79.02
5,533.865 11/08/01 79.62 78.44
5,534.275 12/03/01 79.21 78.03
5,534.715 01103/02 78.77 77.59
5,535.435 02/06/02 78.05 76 .87
5,536.445 03/26/02 77.04 75 .86
5,536.405 04/09/02 77.08 75.90
5,537.335 OS/23/02 76.15 74.97
5,537.325 06/05/02 76.16 74.98
5,537.975 07/08/02 75.51 74.33
Water Levels and Data over Time
White Mesa Mill -Well TW 4-4
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,612.301 5,613.485 1.184 114.5
5,538.825 08123/02 74.66 73.48
5,539.275 09 /11102 74.21 73.03
5,539.765 10123/02 73.72 72.54
5,540.205 11122/02 73.28 72.10
5,540.295 12/03/02 73.19 72.01
5,540.795 01109/03 72.69 71.51
5,540.985 02/12/03 72.50 71.32
5,541.675 03/26/03 71.81 70.63
5,541.765 04/02/03 71.72 70.54
5,541.885 05101 /03 71.60 70.42
5,542.025 06/09/03 71.46 70.28
5,541.925 07/07/03 71.56 70.38
5,541.885 08/04/03 71.60 70.42
5,541.825 09111103 71.66 70.48
5,541.885 10102/03 71.60 70.42
5,541.995 11/07/03 71.49 70.31
5,542.005 12/03/03 71.48 70.30
5,542.555 01115/04 70.93 69.75
5,542.705 02110104 70.78 69.60
5,543.225 03/28/04 70.26 69.08
5,543.555 04112/04 69.93 68.75
5,543.865 05/13/04 69.62 68.44
5,543.915 06118/04 69.57 68.39
5,544.655 07/28/04 68.83 67.65
5,544.795 08/30104 68.69 67 .51
5,544.845 09/16/04 68.64 67.46
5,544.705 10/11/04 68.78 67.60
5,544.525 11116/04 68.96 67.78
5,544.625 12/22 /04 68.86 67.68
5,544.305 01118/05 69.18 68.00
5,544.585 02128/05 68.90 67.72
5,544.685 03/15105 68 .80 67.62
5,544.675 04/26/05 68.81 67.63
5,544.785 05124/05 68.70 67.52
5,544.795 06/30105 68.69 67.51
5,544.775 07/29/05 68.71 67.53
5,545.005 09/12/05 68.48 67.30
5,545.225 12/07/05 68.26 67.08
5,545.735 03/08/06 67.75 66.57
5,545.785 06114/06 67.70 66.52
5,545.855 07/18/06 67.63 66.45
5,545.805 11107/06 67.68 66.50
5546.675 02127/07 66.81 65.63
Water Levels and Data over Time
White Mesa Mill-Well TW 4-4
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
elevation urface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.L D) Well
5612.301 5,613.485 1.184 114.5
5,546.535 05102/07 66.95 65.77
5 547.155 08/15/07 66.33 65.15
5547.215 10110/07 66.27 65.09
5548.305 03126/08 65.18 64 .00
5,548.865 06/24/08 64.62 63.44
5,549.235 08126/08 64.25 63.07
5,549.305 1.0/14/08 64.18 63 .00
5,549.725 03/03/09 63.76 62 .58
5,549.905 06/24/09 63.58 62.40
5549.695 09/10109 63.79 62.61
5549.865 1211 V09 63.62 62.44
5545.60 0311 1110 67.89 66.71
5,530.88 05111/10 82.61 81.43
5,545.24 09129/10 68.25 67.07
5533.66 12/21/10 79.83 78.65
Water Levels and Data over Time
White Mesa Mill -Well TW 4-5
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,638.75 5,640.70 1.95 121.75
5,579.30 01102/00 61.40 59.45
5,579.60 01110/00 61.10 59.15
5,579.35 01117/00 61.35 59.40
5,579.60 01124/00 61.10 59.15
5,579.50 02/01100 61.20 59.25
5,579.50 02/07/00 61.20 59.25
5,579.90 02/14/00 60.80 58.85
5,579.90 02/23/00 60.80 58 .85
5,580.20 03/01/00 60.50 58.55
5,580.00 03/08/00 60.70 58.75
5,580.04 03/15/00 60.66 58 .71
5,580.70 03/20/00 60.00 58.05
5,580.30 03/29/00 60.40 58.45
5,580.00 04/04/00 60.70 58.75
5,580.20 04/13/00 60.50 58.55
5,580.40 04/21100 60.30 58.35
5,580.50 04128/00 60.20 58.25
5,580.50 05/01100 60.20 58.25
5,580.90 05111/00 59.80 57.85
5,580.50 05115/00 60.20 58.25
5,580.75 OS/25/00 59.95 58.00
5,580.80 06/09/00 59.90 57.95
5,580.92 06116/00 59.78 57.83
5,580.80 06126/00 59.90 57.95
5,580.90 07/06/00 59.80 57.85
5,581.05 07/13/00 59.65 57.70
5,580.90 07/18/00 59.80 57.85
5,581.05 07/27/00 59.65 57.70
5,581.06 08/02/00 59.64 57.69
5,581.08 08/09/00 59.62 57.67
5,581.07 08/16/00 59.63 57.68
5,581.25 08/31100 59.45 57.50
5,581.32 09/08/00 59.38 57.43
5,581.34 09/13/00 59.36 57.41
5,581.41 09/20/00 59.29 57.34
5,581.37 10/05/00 59.33 57.38
5,581.66 11109/00 59.04 57.09
5,581.63 12/06/00 59.07 57.12
5,581.92 01 /03/01 58.78 56.83
5,582.20 02/09/01 58.50 56.55
5,582.54 03128/01 58.16 56.21
5,582.72 04/30101 57.98 56.03
5,582.72 05/31101 57.98 56.03
Water Levels and Data over Time
White Mesa Mill -Well TW 4-5
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) MOllitoring (bhv.MP) (blw.LSD) Well
5,638.75 5,640.70 1.95 121.75
5,582.81 06/22/01 57.89 55.94
5,582.92 07110101 57.78 55.83
5,583.17 08120101 57.53 55.58
5,583.28 09/19/01 57.42 55.47
5,583.36 10102/01 57.34 55.39
5,582.72 05/31/01 57.98 56.03
5,582.81 06/21101 57.89 55.94
5,582.92 07110101 57.78 55.83
5,583.17 08120101 57.53 55.58
5,583.28 09/19/01 57.42 55.47
5,583.36 10102/01 57.34 55.39
5,583.49 11/08/01 57.21 55.26
5,583.84 12/03/01 56.86 54.91
5,583.79 01/03/02 56.91 54.96
5,583.96 02/06/02 56.74 54.79
5,584.39 03/26/02 56.31 54.36
5,584.12 04/09/02 56.58 54.63
5,584.55 05/23/02 56 .15 54.20
5,584.42 06/05/02 56.28 54.33
5,583.65 07/08/02 57.05 55.10
5,584.90 08/23/02 55.80 53.85
5,585.02 09/11/02 55.68 53.73
5,585.20 10123/02 55 .50 53.55
5,585.15 11/22/02 55.55 53.60
5,585.42 12103/02 55.28 53.33
5,585.65 01/09/03 55.05 53.10
5,585.65 02/12/03 55.05 53.10
5,585.92 03/26/03 54.78 52.83
5,586.22 04/02/03 54.48 52.53
5,586.01 05101/03 54.69 52.74
5,584.81 06/09/03 55.89 53.94
5,584.34 07/07/03 56.36 54.41
5,584.40 08/04/03 56.30 54.35
5,583.88 09111103 56.82 54.87
5,583.57 10102/03 57.13 55.18
5,583.39 11/07/03 57.31 55.36
5,583.97 12/03/03 56.73 54.78
5,585.28 01115/04 55.42 53.47
5,585.50 02110104 55.20 53.25
5,585.87 03/28/04 54.83 52.88
5,586.20 04112/04 54.50 52.55
5,586.45 05/13/04 54.25 52.30
5,586.50 06/18/04 54.20 52.25
Water Levels and Data over Time
White Mesa Mill-Well TW4-5
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.L D) Well
5,638.75 5,640.70 1.95 121.75
5,587.13 07/28/04 53.57 51.62
5,586.22 08/30104 54.48 52.53
5,585.69 09/16/04 55.01 53.06
5,585.17 10/11104 55.53 53.58
5,584.64 11116/04 56.06 54.11
5,584.77 12/22/04 55.93 53.98
5,584.65 01118/05 56.05 54.10
5,584.98 02/28/05 55.72 53.77
5,585.15 03115/05 55.55 53.60
5,586.25 04/26/05 54.45 52.50
5,586.79 05/24/05 53.91 51.96
5,586.52 06/30105 54.18 52.23
5,586.03 07/29/05 54.67 52.72
5,586.05 09112/05 54.65 52.70
5,585.80 12/07/05 54.90 52.95
5,587.06 03/08/06 53.64 51.69
5,585.90 06/13/06 54.80 52.85
5,585.32 07/18/06 55.38 53.43
5,585.35 11107/06 55.35 53.40
5585.81 02/27/07 54.89 52.94
5,585.20 05/02/07 55.50 53.55
5,586.66 08114/07 54.04 52.09
5,586.80 10110107 53.90 51.95
5,588.48 03/26/08 52.22 50.27
5,586.51 06/24/08 54.19 52.24
5,586.45 08/26/08 54.25 52.30
5,585.40 10114/08 55.3 53.35
5,584.80 03/03/09 55.9 53 .95
5,584.73 06/24/09 55.97 54.02
5,584.36 09/10109 56.34 54.39
5,585.02 12/11109 55.68 53.73
5,585.66 03/11110 55.04 53.09
5,584.86 05111110 55.84 53.89
5,584.55 09129/10 56.15 54.20
5,584.17 12/2111 0 56.53 54.58
Water Levels and Data over Time
White Mesa Mill -Well TW 4-6
Total or
Measuring Measured Total Total
Water Land Point Depth to Depth to Depth Of
Elevation Surface Elevation Length Of Date Of Water Water Well
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) (blw.LSD)
5,607.33 5,608.78 1.450 98.55
5,522.28 OS/25100 86.50 85.05
5,521.51 06/09/00 87.27 85.82
5,522.35 06116/00 86.43 84.98
5,522.14 06/26/00 86.64 85.19
5,522.25 07/06/00 86.53 85.08
5,522.13 07113/00 86.65 85.20
5,522.17 07118/00 86.61 85.16
5,522.26 07/25100 86.52 85.07
5,522.31 08/02/00 86.47 85.02
5,522.33 08/09100 86.45 85.00
5,522.35 08/15100 86.43 84.98
5,522.40 08/31/00 86.38 84.93
5,522.40 09108/00 86.38 84.93
5,522.45 09113/00 86.33 84.88
5,522.53 09/20100 86.25 84.80
5,522.39 10105/00 86.39 84.94
5,522.42 11/09100 86.36 84.91
5,522.29 12/06/00 86.49 85.04
5,522.63 01/03/01 86.15 84.70
5,522.72 02/09101 86.06 84.61
5,522.90 03/26/01 85.88 84.43
5,522.70 04/30101 86.08 84.63
5,522.89 05/31/01 85.89 84.44
5,522.88 06/20/01 85.90 84.45
5,522.96 07/10101 85.82 84.37
5,523.10 08/20101 85.68 84.23
5,523.23 09119101 85.55 84.10
5,523.21 10102/01 85.57 84.12
5,522.89 05/31/01 85.89 84.44
5,522.88 06/21/01 85.90 84.45
5,522.96 07/10101 85.82 84.37
5,523.10 08/20101 85.68 84.23
5,523.23 09/19101 85.55 84.10
5,523.21 10102/01 85.57 84.12
5,523.25 11108/01 85.53 84.08
5,523.46 12/03/01 85.32 83.87
5,523.36 01103/02 85.42 83.97
5,523.50 02/06/02 85.28 83.83
5,523.94 03/26/02 84.84 83.39
5,523.75 04/09/02 85.03 83.58
5,524.23 05/23/02 84.55 83.10
5,523.98 06/05102 84.80 83.35
5,524.31 07/08/02 84.47 83.02
Water Levels and Data over Time
White Mesa Mill -Well TW 4-6
Total or
Measuring Measured Total Total
Water Land Point Depth to Depth to Depth Of
Elevation Surface Elevation Length Of Date Of Water Water Well
(z) (L D) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) (blw.L D)
5,607.33 5,608.78 1.450 98.55
5,524.36 08/23/02 84.42 82.97
5,524.49 09111/02 84.29 82.84
5,524.71 10/23/02 84.07 82.62
5,524.60 11122/02 84.18 82.73
5,524.94 12/03/02 83.84 82.39
5,525.10 01/09/03 83.68 82.23
5,525.15 02112/03 83.63 82.18
5,525.35 03/26/03 83.43 81.98
5,525.68 04/02/03 83.10 81.65
5,525.74 05101/03 83.04 81.59
5,525.98 06/09/03 82.80 81.35
5,526.04 07/07/03 82.74 81.29
5,526.07 08/04/03 82.71 81.26
5,526.42 09111103 82.36 80.91
5,526.30 10102/03 82.48 81.03
5,526.41 11107/03 82.37 80.92
5,526.46 12/03/03 82.32 80.87
5,526.83 01115104 81.95 80.50
5,526.81 02/10104 81.97 80.52
5,527.14 03/28/04 81.64 80.19
5,527.39 04/12/04 81.39 79.94
5,527.64 05/13/04 81.14 79.69
5,527.70 06118/04 81.08 79.63
5,528.16 07128/04 80.62 79.17
5,528.30 08/30104 80.48 79.03
5,528.52 09/16/04 80.26 78.81
5,528.71 10/11/04 80.07 78.62
5,528.74 11/16/04 80.04 78.59
5,529.20 12/22/04 79.58 78.13
5,528.92 01118/05 79.86 78.41
5,529.51 02/28/05 79.27 77.82
5,529.74 03/15105 79.04 77.59
5,529.96 04/26/05 78.82 77.37
5,530.15 05124/05 78.63 77.18
5,530.35 06/30105 78.43 76.98
5,530.47 07/29/05 78.31 76.86
5,530.95 09112/05 77.83 76.38
5,531.50 12/07/05 77.28 75.83
5,532.43 03/08/06 76.35 74.90
5,533.49 06113/06 75.29 73.84
5,532.58 07/18/06 76.20 74.75
5,532.88 11/07/06 75.90 74.45
5534.09 02/27/07 74.69 73.24
Water Levels and Data over Time
White Mesa Mill-Well TW 4-6
Total or
Measuring Measured Total Total
W~lter L and Point Depth to Deptb to Depth Of
Elevation urfnce Elevation Length Of Date Of Water Water Well
(z) (L D) (MP) Ri CI' (L) Monitoring (blw.MP) (blw.LSD) (blw.L D)
5,607.33 5,608.78 1.450 98.55
5,534.04 05/02/07 74.74 73.29
5534.43 08/14/07 74.35 72.90
5554.54 10/10/07 54.24 52.79
5535.40 03/26/08 73.38 71.93
5,535.55 06124/08 73 .23 71.78
5535.90 08126/08 72.88 71.43
5,535.87 10114/08 72.91 71.46
5536.42 03/) 0/09 72.36 70.91
5,536.7 1 06/24/09 72.07 70.62
5536.83 09/10/09 7 1.95 70.50
5 537.35 12/1 1/09 7 1.43 69.98
5537.93 03/11 /10 70.85 69.40
5,538.14 05/1 1/10 70.64 69.19
5,538.03 09/29/10 70.75 69.30
5538.04 12/2 1110 70.74 69.29
Water Levels and Data over Time
White Mesa Mill -Well TW 4-7
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total Depth
Elevation Surface Elevation Length Of Date Of Water Water Of Well
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) (blw.LSD)
5,619.87 5,621.07 1.20 119.8
5,552.37 11129/99 68.70 67.50
5,553.57 01/02/00 67.50 66.30
5,553.87 01110/00 67.20 66.00
5,553.72 01117/00 67.35 66.15
5,553.97 01124/00 67.10 65.90
5,553.87 02/01100 67.20 66.00
5,553.87 02/07/00 67.20 66.00
5,554.17 02/14/00 66.90 65.70
5,554.27 02/23/00 66.80 65.60
5,554.37 03/01/00 66.70 65.50
5,554.37 03/08/00 66.70 65.50
5,554.27 03115/00 66.80 65.60
5,554.77 03/20/00 66.30 65.10
5,554.57 03/29/00 66.50 65.30
5,554.27 04/04/00 66.80 65.60
5,554.57 04/13/00 66.50 65.30
5,554.77 04/21/00 66.30 65.10
5,554.87 04/28/00 66.20 65.00
5,554.87 05/01/00 66.20 65.00
5,555.27 05/11/00 65.80 64.60
5,554.97 05/15/00 66.10 64.90
5,555.27 OS/25/00 65.80 64.60
5,555.33 06/09/00 65.74 64.54
5,555.45 06/16/00 65.62 64.42
5,555.22 06/26/00 65.85 64.65
5,555.45 07/06/00 65.62 64.42
5,555.40 07/13/00 65.67 64.47
5,555.45 07/18/00 65.62 64.42
5,555.59 07/27/00 65.48 64.28
5,555.65 08/02/00 65.42 64.22
5,555.70 08/09/00 65.37 64.17
5,555.74 08/16/00 65.33 64.13
5,555.96 08/31100 65.11 63.91
5,555.87 09/08/00 65.20 64.00
5,555.95 09/13/00 65.12 63.92
5,556.05 09/20/00 65.02 63.82
5,556.06 10/05/00 65 .01 63 .81
5,556.17 10/12/00 64.90 63.70
5,556.20 10119/00 64.87 63.67
5,556.22 10/23/00 64.85 63.65
5,556.36 11109/00 64.71 63.51
5,556.42 11114/00 64.65 63.45
5,556.45 11/30/00 64.62 63.42
Water Levels and Data over Time
White Mesa Mill-Well TW4-7
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total Depth
Elevation Surface Elevation Length Of Date Of Water Water Of Well
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) (blw.LSD)
5,619.87 5,621.07 1.20 119.8
5,556.15 12/06/00 64.92 63.72
5,556.89 01114/01 64.18 62.98
5,557.07 02/09/01 64.00 62.80
5,557.62 03/29/01 63.45 62.25
5,557.51 04/30101 63.56 62.36
5,557.77 05/31/01 63.30 62.10
5,557.84 06/21/01 63.23 62.03
5,557.98 07110101 63.09 61.89
5,558.33 08/20101 62.74 61.54
5,558.57 09/19/01 62.50 61.30
5,558.53 10102/01 62.54 61.34
5,558.62 11108/01 62.45 61.25
5,559.03 12/03/01 62.04 60.84
5,559.08 01103/02 61.99 60.79
5,559.32 02/06/02 61.75 60.55
5,559.63 03/26/02 61.44 60.24
5,559.55 04/09/02 61.52 60.32
5,560.06 05123/02 61.01 59.81
5,559.91 06/05/02 61.16 59.96
5,560.09 07/08/02 60.98 59.78
5,560.01 08/23/02 61.06 59.86
5,560.23 09111/02 60.84 59.64
5,560.43 10123/02 60.64 59.44
5,560.39 11/22/02 60.68 59.48
5,560.61 12/03/02 60.46 59.26
5,560.89 01/09/03 60.18 58.98
5,560.94 02112/03 60.13 58.93
5,561.28 03/26/03 59.79 58.59
5,561.35 04/02/03 59.72 58.52
5,546.20 05/01/03 74.87 .73.67
5,539.47 06/09103 81.60 80.40
5,541.87 07/07/03 79.20 78.00
5,542.12 08/04/03 78 .95 77.75
5,541.91 09/11/03 79.16 77.96
5,544.62 10/02/03 76.45 75.25
5,542.67 11/07/03 78.40 77.20
5,549.96 12/03/03 71.11 69.91
5,557.17 01/15/04 63.90 62.70
5,558.65 02110104 62.42 61.22
5,559.90 03/28/04 61.17 59.97
5,560.36 04/12/04 60.71 59.51
5,560.87 05/13/04 60.20 59.00
5,560.95 06118/04 60.12 58.92
Water Levels and Data over Time
White Mesa Mill -Well TW 4-7
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total Depth
Elevation Surface Elevation Length Of Date Of Water Water Of Well
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) (blw.LSD)
5,619.87 5,621.07 1.20 119.8
5,561.64 07128/04 59.43 58.23
5,543.00 08/30104 78.07 76.87
5,541.91 09/16/04 79.16 77.96
5,540.08 10/11104 80.99 79.79
5,546.92 11/16/04 74.15 72.95
5,546.97 12122/04 74.10 72.90
5,546.51 01118/05 74.56 73.36
5,546.66 02/28/05 74.41 73.21
5,546.81 03/15/05 74.26 73.06
5,548.19 04126/05 72.88 71.68
5,547.11 05/24/05 73.96 72.76
5,546.98 06/30105 74.09 72.89
5,546.92 07129105 74.15 72.95
5,547.26 09112/05 73.81 72.61
5,547.26 12/07/05 73.81 72.61
5,548.86 03/08/06 72.21 71.01
5,548.62 06/13/06 72.45 71.25
5,550.04 07118/06 71.03 69.83
5,548.32 11107/06 72.75 71.55
5,550.44 02/27/07 70.63 69.43
5,549.69 05 /02 /07 71.38 70.18
5,549.97 08114/07 71.10 69.90
5,550.30 10/10107 70.77 69.57
5,551.92 03/26/08 69.15 67.95
5,552.94 06124/08 68.13 66.93
5,552.34 08/26/08 68 .73 67.53
5,552.61 10114/08 68.46 67.26
5,552.81 03/10109 68.26 67.06
5,553.11 06/24/09 67.96 66.76
5,552.55 09110109 68.52 67.32
5,553.06 12111109 68.01 66.81
5,554.64 03/11/10 66.43 65.23
5,554.20 05/11110 66.87 65.67
5,553.45 09129110 67.62 66.42
5,553.40 12/21110 67.67 66.47
Water Levels and Data over Time
White Mesa Mill -Well TW 4-8
Total or
Measuring Measured
Water Land Point Depth to Total Depth Total
Elevation Surface Elevation Length Of Date Of Water to Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,616.80 5,618.21 1.41 126.00
5,543.21 11/29/99 75.00 73.59
5,543.01 01/02/00 75.20 73.79
5,543.31 01110/00 74.90 73.49
5,543.11 01117/00 75.10 73.69
5,543.41 01/24/00 74.80 73.39
5,543.31 02/01/00 74.90 73.49
5,543.31 02/07/00 74.90 73.49
5,543.71 02/14/00 74.50 73.09
5,543.76 02/23/00 74.45 73.04
5,543.86 03/01100 74.35 72.94
5,543.86 03/08/00 74.35 72.94·
5,543.91 03115/00 74.30 72.89
5,544.31 03/20/00 73.90 72.49
5,544.21 03/29/00 74.00 72.59
5,544.01 04/04/00 74.20 72.79
5,544.21 04/13/00 74.00 72.59
5,544.41 04/21100 73 .80 72.39
5,544.51 04/28/00 73.70 72.29
5,544.51 05/01/00 73.70 72.29
5,544.81 05111100 73.40 71.99
5,544.51 05/15/00 73.70 72.29
5,544.71 OS/25/00 73.50 72.09
5,544.71 06/09/00 73 .50 72 .09
5,544.81 06/16/00 73.40 71.99
5,544.68 06/26/00 73 .53 72.12
5,544.76 07/06/00 73.45 72.04
5,544.77 07113/00 73.44 72.03
5,544.76 07/18/00 73.45 72.04
5,544.92 07/27/00 73.29 71.88
5,544.96 08/02/00 73.25 71.84
5,544.98 08/09/00 73.23 71.82
5,544.97 08115/00 73.24 71.83
5,545.21 08/31/00 73.00 71.59
5,545.31 09/08/00 72.90 71.49
5,545.43 09/13/00 72.78 71.37
5,545.56 09/20/00 72.65 71.24
5,545.57 10/05/00 72.64 71.23
5,545.81 11109/00 72.40 70.99
5,545.66 12/06/00 72.55 71.14
5,546.28 01/03/01 71.93 70.52
5,546.70 02/09/01 71.51 70.10
5,547.18 03/27/01 71.03 69.62
5,547.31 04/30101 70.90 69.49
Water Levels and Data over Time
White Mesa Mill -Well TW 4-8
Total or
Measuring Measured
Water Land Point Depth to Total Depth Total
Elevation Surface Elevation Length Of Date Of Water to Water Depth Of
(WL) (L D) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,616.80 5,618.21 1.41 126.00
5,547.49 05/31/01 70.72 69.31
5,547.49 06/20101 70.72 69.31
5,547.83 07110101 70.38 68.97
5,548.13 08/20101 70.08 68.67
5,548.30 09/19/01 69.91 68.50
5,548.45 10102/01 69.76 68.35
5,547.49 05/31/01 70.72 69.31
5,547.54 06121/01 70.67 69.26
5,547.83 07110101 70.38 68.97
5,548.13 08/20101 70.08 68.67
5,548.30 09119/01 69.91 68.50
5,548.45 10102/01 69.76 68.35
5,548.62 11/08/01 69.59 68.18
5,549.03 12/03/01 69.18 67.77
5,548.97 01/03/02 69.24 67.83
5,549.19 02/06/02 69.02 67.61
5,549.66 03/26/02 68.55 67.14
5,549.64 04/09/02 68.57 67.16
5,550.01 05/23/02 68.20 66.79
5,549.97 06/05102 68.24 66.83
5,550.13 07/08/02 68.08 66.67
5,550.30 08/23/02 67.91 66.50
5,550.50 09111/02 67.71 66.30
5,550.90 10123/02 67.31 65.90
5,550.83 11/22/02 67.38 65.97
5,551.04 12/03/02 67.17 65.76
5,551.24 01109/03 66.97 65.56
5,551.23 02112/03 66.98 65.57
5,551.52 03/26/03 66.69 65.28
5,551.64 04/02/03 66.57 65.16
5,549.02 05101/03 69.19 67.78
5,544.74 06/09/03 73.47 72.06
5,543.78 07/07/03 74.43 73.02
5,543.39 08/04/03 74.82 73.41
5,543.05 09111/03 75.16 73.75
5,543.19 10102/03 75.02 73.61
5,543.21 11/07/03 75.00 73.59
5,543.40 12/03/03 74.81 73.40
5,548.10 01/15104 70.11 68.70
5,549.50 02110104 68.71 67.30
5,550.87 03/28/04 67.34 65.93
5,551.33 04112/04 66.88 65.47
5,551.87 05113/04 66.34 64.93
Water Levels and Data over Time
White Mesa Mill-Well TW4-8
Total or
Measuring Measured
Water Land Point Depth to Total Depth Total
Elevation Surface Elevation Length Of Date Of Water to Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,616.80 5.618.21 1.41 126.00
5,551.92 06118/04 66.29 64.88
5,552.69 07/28/04 65.52 64.11
5,549.78 08/30104 68.43 67.02
5,547.46 09/16/04 70.75 69 .34
5,545.21 10/11104 73.00 71.59
5,545.09 11116/04 73.12 71.71
5,545.61 12/22/04 72.60 71.19
5,545.24 01118/05 72.97 71.56
5,545.42 02128/05 72.79 71.38
5,545.45 03115/05 72.76 71.35
5,545.46 04/26/05 72.75 71.34
5,545.66 05/24/05 72.55 71.14
5,545.54 06/30105 72.67 71.26
5,545.43 07129105 72.78 71.37
5,545.61 09112/05 72.60 71.19
5,545.52 12/07/05 72 .69 71.28
5,546.53 03/08/06 71.68 70.27
5,546.51 06113 /06 71 .70 70.29
5,546.51 07/18/06 71.70 70.29
5,546.46 11/07/06 71.75 70.34
5,547.92 02127/07 70.29 68.88
5,547.01 05/02/07 71.20 69.79
5,547.40 08114/07 70 .81 69.40
5,547.57 10/10107 70.64 69 .23
5,548.76 03/26/08 69.45 68.04
5,549.17 06/24/08 69.04 67.63
5,549.31 08/26/08 68 .9 67.49
5,549.37 10114/08 68.84 67.43
5,549.72 03/03/09 68.49 67.08
5,550.08 06/24/09 68.13 66.72
5,549.93 09/10109 68.28 66.87
5,550.44 12/11 /09 67.77 66.36
5,551.46 03 /11110 66.75 65.34
5,551.38 05 /11/10 66.83 65.42
5,551.15 09/29110 67.06 65.65
5,550.90 12/21110 67 .31 65.90
Water Levels and Data over Time
White Mesa Mill -Well TW 4-9
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,636.11 5,637.59 1.48 121.33
5,577.09 12/20/99 60.5 59.02
5,577.09 01102/00 60.5 59.02
5,577.29 01110/00 60.3 58.82
5,577.09 01117/00 60.5 59.02
5,577.39 01124/00 60.2 58.72
5,577.29 02/01/00 60.3 58.82
5,577.19 02/07/00 60.4 58.92
5,577.69 02114/00 59.9 58.42
5,577.69 02/23/00 59.9 58.42
5,577.79 03/01/00 59.8 58.32
5,577.79 03/08/00 59.8 58.32
5,577.89 03/15/00 59.7 58.22
5,568.49 03/20/00 69.1 67.62
5,578.14 03/29/00 59.45 57.97
5,577.84 04/04/00 59.75 58.27
5,578.04 04/13/00 59.55 58.07
5,578.24 04/21/00 59.35 57.87
5,578.39 04/28/00 59.2 57.72
5,578.39 05/01100 59.2 57.72
5,578.79 05111/00 58.8 57.32
5,578.39 05115/00 59.2 57.72
5,578.79 OS/25/00 58.8 57.32
5,578.81 06/09/00 58.78 57.30
5,578.89 06116/00 58.7 57.22
5,578.74 06/26/00 58.85 57.37
5,578.86 07/06/00 58.73 57.25
5,578.87 07/13/00 58.72 57.24
5,578.84 07118/00 58.75 57.27
5,579.03 07/27/00 58.56 57.08
5,579.03 08/02/00 58.56 57.08
5,579.05 08/09/00 58.54 57.06
5,579.04 08115/00 58.55 57.07
5,579.25 08/31100 58.34 56.86
5,579.35 09/08/00 58.24 56.76
5,579.40 09/13/00 58.19 56.71
5,579.46 09/20/00 58.13 56.65
5,579.44 10/05/00 58.15 56.67
5,579.79 11109/00 57.8 56.32
5,579.73 12/06/00 57.86 56.38
5,580.01 01/03/01 57.58 56.10
5,580.30 02/09/01 57.29 55.81
5,580.66 03/27/01 56.93 55.45
5,580.75 04/30/01 56.84 55.36
Water Levels and Data over Time
White Mesa Mill-Well TW4-9
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,636.11 5,637.59 1.48 121.33
5,581.04 05/31101 56.55 55.07
5,581.12 06/21101 56.47 54.99
5,581.15 07/10101 56.44 54.96
5,581.51 08/20101 56.08 54.60
5,581.70 09/19/01 55.89 54.41
5,581.61 10102/01 55.98 54.50
5,581.04 05/31101 56.55 55.07
5,581.12 06/21101 56.47 54.99
5,581.15 0711 010 1 56.44 54.96
5,581.51 08120101 56.08 54.60
5,581.70 09/19/01 55.89 54.41
5,581.61 10102/01 55.98 54.50
5,581.83 11108/01 55.76 54.28
5,582.17 12/03/01 55.42 53.94
5,582.21 01/03/02 55.38 53.90
5,582.57 02/06/02 55.02 53.54
5,583.12 03126/02 54.47 52.99
5,582.77 04/09/02 54.82 53.34
5,583.21 05/23/02 54.38 52.90
5,582.94 06/05102 54.65 53 .17
5,582.71 07/08/02 54.88 53.40
5,583.67 08/23/02 53.92 52.44
5,583.82 09111/02 53.77 52.29
5,584.01 10/23/02 53.58 52.10
5,583.88 11122/02 53.71 52.23
5,583.81 12/03/02 53.78 52.30
5,584.28 01/09/03 53.31 51.83
5,584.41 02112/03 53.18 5l.70
5,584.68 03/26/03 52.91 51.43
5,584.49 04/02/03 53 .10 51.62
5,584.51 05101/03 53.08 51.60
5,583.59 06/09/03 54.00 52.52
5,582.96 07/07/03 54.63 53.15
5,582.98 08/04/03 54.61 53.13
5,582.57 09/11/03 55.02 53.54
5,582.25 10/02/03 55.34 53.86
5,582.09 11/07/03 55.50 54.02
5,582.48 12/03/03 55.11 53.63
5,583.69 01115104 53.90 52.42
5,583.89 02110104 53.70 52.22
5,584.30 03/28/04 53.29 51.81
5,584.59 04112/04 53.00 51.52
5,584.87 05/13/04 52.72 51.24
Water Levels and Data over Time
White Mesa Mill -Well TW 4-9
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,636.11 5,637.59 1.48 121.33
5,584.96 06118/04 52.63 51.15
5,585.50 07/28/04 52.09 50.61
5,584.81 08/30104 52.78 51.30
5,584.40 09/16/04 53.19 51.71
5,583.91 10/11104 53.68 52.20
5,583.39 11116/04 54.20 52.72
5,583.54 12/22/04 54.05 52.57
5,583.34 01118/05 54.25 52.77
5,583.66 02128/05 53.93 52.45
5,583.87 03/15/05 53.72 52.24
5,584.74 04/26/05 52.85 51.37
5,585.26 05/24/05 52.33 50.85
5,585.06 06/30105 52.53 51.05
5,584.67 07129/05 52.92 51.44
5,584.75 09/12/05 52.84 51.36
5,584.51 12/07/05 53.08 51.60
5,585.74 03/08/06 51.85 50.37
5,584.74 06/13/06 52.85 51.37
5,584.26 07/18/06 53.33 51.85
5,584.21 11/07/06 53.38 51.90
5,584.67 02/27/07 52.92 51.44
5,584.06 05/02/07 53.53 52.05
5,585.33 08114/07 52 .26 50.78
5,585.42 10/10107 52.17 50.69
5,587.01 03/26/08 50.58 49.10
5,585.44 06/24/08 52.15 50.67
5,585.23 08/26/08 52.36 50.88
5,584.42 10/14/08 53.17 51.69
5,583.59 03/03/09 54 52.52
5,583.35 06/24/09 54.24 52.76
5,582.91 09110109 54.68 53.20
5,583.43 1211 1109 54.16 52.68
5,584.00 0311 1110 53 .59 52.11
5,583.27 05111110 54.32 52.84
5,582.92 09/29/10 54.67 53.19
5,583.08 12/21/10 54.51 53.03
Water Levels and Data over Time
White Mesa Mill-Well TW4-10
Total or
Measuring Measured
Water Land Point Depth to Total Depth Total
Elevation Surface Elevation Length Of Date Of Water to Water Depth Of
(WL) (L D) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD~ Well
5,631.99 5,634.24 2.25 121.33
5,576.75 01103/02 57.49 55.24
5,576.92 02/06/02 57.32 55.07
5,577.43 03/26/02 56.81 54.56
5,577.22 04/09/02 57.02 54.77
5,577.80 05/23/02 56.44 54.19
5,577.47 06/05/02 56.77 54.52
5,577.55 07/08/02 56.69 54.44
5,578.10 08/23/02 56.14 53.89
5,578.24 09/11/02 56.00 53.75
5,578.49 10/23/02 55.75 53.50
5,578.43 11122/02 55.81 53.56
5,578.43 12/03/02 55.81 53.56
5,578.66 01109/03 55.58 53.33
5,578.66 02/12/03 55.58 53.33
5,578.78 03/26/03 55.46 53.21
5,578.90 04/02/03 55.34 53.09
5,578.83 05/01103 55.41 53.16
5,578.05 06/09/03 56.19 53.94
5,577.38 07/07/03 56.86 54.61
5,577.15 08/04/03 57.09 54.84
5,576.76 09111103 57.48 55.23
5,576.36 10102/03 57.88 55.63
5,576.05 11/07/03 58.19 55.94
5,576.20 12/03/03 58.04 55.79
5,577.43 01115/04 56.81 54.56
5,577.81 02110104 56.43 54.18
5,578.47 03/28/04 55.77 53.52
5,578.69 04112/04 55.55 53.30
5,578.93 05113/04 55.31 53.06
5,578.99 06/18/04 55.25 53.00
5,579.18 07/28/04 55.06 52.81
5,579.06 08/30104 55.18 52.93
5,578.78 09116/04 55.46 53.21
5,577.80 10/11/04 56.44 54.19
5,577.13 11116/04 57.11 54.86
5,576.96 12122/04 57.28 55.03
5,576.63 01118/05 57.61 55.36
5,576.82 02/28/05 57.42 55.17
5,576.86 03115/05 57.38 55.13
5,577.52 04126/05 56.72 54.47
5,578.01 05124/05 56.23 53.98
5,578.15 06/30105 56.09 53.84
5,577.90 07129105 56.34 54.09
Water Levels and Data over Time
White Mesa Mill-Wen TW4-10
Total or
Measuring Meas"Q.red
Water L and Pomt Depth to Total Depth Total
Elevation u.-face Elevation Length Of Date Of Wate)" to Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,63 1.99 5,634.24 2.25 121.33
5578.02 09/12/05 56.22 53.97
5,577.56 12/07/05 56.68 54.43
5579.69 03/08/06 54.55 52.30
5,578.34 06113/06 55.90 53.65
5,577.94 07/L8 /06 56.30 54.05
5,578.01 11/07/06 56.23 53.98
5578.43 02/27/07 55.8 1 53.56
5577.84 05102/07 56.40 54.15
5578.74 08/14/07 55.50 53.25
5,579.04 10/10/07 55.20 52.95
5,580.69 03/26/08 53.55 51.30
5579.87 06/24/08 54.37 52.12
5579.47 08/26/08 54.77 52.52
5578.87 10/14/08 55.37 53.12
5,578.01 03/10109 56.23 53.98
5,577.85 06124/09 56.39 54.14
5,577.49 09/10109 56.75 54 .50
5577.98 12/11109 56.26 54.01
5578.38 0311 111 0 55 .86 53.61
5,578.16 05/11/10 56.08 53.83
5577.85 09129/10 56.39 54.L4
5,577.28 .12/2111 0 56.96 54 .71
Water Levels and Data over Time
White Mesa Mill -Well TW 4-11
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5621.92 5,623.62 1.70 12l.33
5,548.32 01/03/02 75.30 73.60
5,548.73 02/06/02 74.89 73.19
5,549.03 03/26/02 74.59 72.89
5,548.84 04/09/02 74.78 73.08
5,549.30 05/23/02 74.32 72.62
5,549.01 06/05102 74.61 72.91
5,549.22 07/08/02 74.40 72.70
5,549.44 08/23/02 74.18 72.48
5,549.57 09111102 74.05 72.35
5,549.64 10/23/02 73.98 72.28
5,549.58 11122/02 74.04 72.34
5,549.62 12/03/02 74.00 72.30
5,549.85 01109/03 73.77 72.07
5,549.91 02112/03 73.71 72.01
5,550.15 03/26/03 73.47 71.77
5,550.01 04/02/03 73.61 71.91
5,550.31 05101103 73.31 71.61
5,550.44 06/09103 73.18 71.48
5,550.33 07/07/03 73.29 71.59
5,550.35 08/04/03 73.27 71.57
5,550.44 09/11103 73.18 71.48
5,550.47 10102/03 73.15 71.45
5,550.60 11107/03 73.02 7l.32
5,550.60 12/03/03 73.02 71.32
5,550.94 01115/04 72.68 70.98
5,551.00 02110104 72.62 70.92
5,550.34 03/28/04 73.28 71.58
5,551.54 04/12/04 72.08 70.38
5,551.89 05/13/04 71.73 70.03
5,551 .94 06/18/04 71.68 69.98
5,552.49 07/28/04 71.13 69.43
5,552.74 08/30104 70.88 69.18
5,553.01 09/16/04 70.61 68.91
5,553.11 10/11/04 70.51 68.81
5,553.19 11116/04 70.43 68.73
5,553.53 12/22/04 70.09 68.39
5,553.31 01118/05 70.31 68.61
5,553.84 02/28/05 69.78 68.08
5,554.04 03115/05 69.58 67.88
5,554.23 04/26/05 69.39 67.69
5,553.87 OS/24/05 69.75 68.05
5,554.46 06/30105 69.16 67.46
5,554.57 07/29105 69.05 67.35
Water Levels and Data over Time
White Mesa Mill -Well TW 4-11
Total or
Measuring Measured Total
Water Land Point Depth to Depth tn Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (bhv.LSD) Well
5621.92 5623.62 1.70 121.33
5553.86 09/12105 69.76 68 .06
5555.30 12/07/05 68.32 66.62
5,556.20 03/08/06 67.42 65 .72
5,556.48 06/14/06 67.14 65.44
5,556.37 07/'\8/06 67.25 65 .55
5556.94 11107/06 66.68 64.98
5557.92 02/27/07 65.7 64
5,5 -7.84 05102107 65.78 64.08
5,558.02 08/15107 65 .60 63 .90
5,557.13 ) 0/10/07 66.49 64.79
5569.74 03/26/08 53.88 52.18
5,561.01 06/24/08 62.61 60.91
5,562.07 08/26/08 6 1.55 59.85
5562.47 10/14108 61.15 59.45
5,563.80 03110/09 59.82 58.12
5,564.27 06/24/09 59.35 51.65
5564.32 09/10/09 59.3 57.60
5,564.70 12/11 /09 58.92 57.22
5565.14 031l11l0 58.48 56.78
5,565.61 05111 /10 58.01 56.31
5565.67 09129110 57.95 56.25
5,565.62 12/21 /10 58 56.30
Water Levels and Data over Time
White Mesa Mill-Well TW4-12
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,622.38 5,624.03 1.65 121.33
5,580.71 08 /23/02 43 .32 41.67
5,581.34 09/11102 42.69 41.04
5,581.13 10/23/02 42.90 41.25
5,581.27 11122/02 42.76 41.11
5,581.35 12/03/02 42.68 41.03
5,582.38 01 /09103 41.65 40.00
5,582.27 02112/03 41.76 40 .11
5,582.51 03 /26/03 41.52 39.87
5,581.91 04/02/03 42.12 40.47
5,582.72 05/01103 41.31 39.66
5,582.93 06/09103 41.10 39.45
5,583.01 07/07/03 41.02 39.37
5,583.11 08/04/03 40.92 39.27
5,583.35 09111 /03 40.68 39.03
5,583.52 10102/03 40.51 38.86
5,583.57 11107/03 40.46 38.81
5,583.81 12/03/03 40.22 38.57
5,584.17 01115104 39.86 38.21
5,584.19 02/10104 39.84 38.19
5,584.31 03/28/04 39 .72 38.07
5,584.70 04112/04 39 .33 37.68
5,584.68 05/13/04 39 .35 37.70
5,584.73 06/18/04 39 .30 37.65
5,585.16 07/28/04 38 .87 37.22
5,585.18 08/30104 38 .85 37.20
5,585.29 09/16/04 38.74 37.09
5,585.65 10/11/04 38.38 36.73
5,585.71 11116/04 38.32 36.67
5,586.l5 12/22/04 37.88 36.23
5,585.94 01118/05 38.09 36.44
5,586.36 02/28 /05 37.67 36.02
5,586.75 03115/05 37.28 35.63
5,587.00 04/26/05 37.03 35.38
5,587.15 05/24/05 36.88 35.23
5,587.38 06/30105 36.65 35.00
5,587.38 07/29105 36.65 35.00
5,587.74 09/12/05 36.29 34.64
5,588.23 12/07/05 35.80 34.15
5,588.72 03/08/06 35.31 33.66
5,588.14 06/13/06 35.89 34.24
5,588.13 07118/06 35 .90 34.25
5,584.50 11 /07/06 39 .53 37.88
5588.65 02/27/07 35.38 33 .73
Water Levels and Data over Time
White Mesa Mill-Well TW4-12
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5622.38 5,624.03 1.65 12 133
5,588.33 05/02/07 35.70 34.05
5586.29 08/14/07 37.74 36.09
5,586.48 10/10/07 37.55 35.90
5,587.56 03126/08 36.47 34.82
5,587.39 06/24/0 8 36.64 34.99
5,587.15 08/26/08 36.88 35.23
5586.64 1.0/14/08 37.39 35.74
5,5 5.97 03/03/0 9 38.06 36.41
5,5 5.54 06/24/09 3 .49 36.84
5,585.34 09/10/09 38.69 37.04
5585.57 121 11109 38.46 36.81
5,585.6 03!] 1110 38.35 36.70
5,586.15 05/11/10 37.88 36.23
5,585.48 09/29/10 38.55 36.90
5584.89 12/21110 39.14 37.49
Water Levels and Data over Time
White Mesa Mill -Well TW 4-13
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,618.09 5,619.94 1.85 121.33
5,529.66 08/23/02 90.28 88.43
5,530.66 09111102 89.28 87.43
5,529.10 10/23/02 90.84 88.99
5,530.58 11122/02 89.36 87.51
5,530.61 12/03/02 89.33 87.48
5,529.74 01109103 90.20 88.35
5,531.03 02/12/03 88.91 87.06
5,531.82 03/26/03 88.12 86.27
5,524.63 04/02/03 95.31 93.46
5,531.54 05/01/03 88.40 86.55
5,538.46 06/09103 81.48 79.63
5,539.38 07/07/03 80.56 78.71
5,540.72 08/04/03 79.22 77.37
5,541.25 09/11/03 78.69 76.84
5,541.34 10102/03 78.60 76.75
5,541.69 11/07/03 78.25 76.40
5,54l.91 12/03/03 78.03 76.18
5,542.44 01115/04 77.50 75.65
5,542.47 02110104 77.47 75.62
5,542.84 03/28/04 77.10 75.25
5,543.08 04/12/04 76.86 75.01
5,543.34 05113/04 76.60 74.75
5,543.40 06/18/04 76.54 74.69
5,544.06 07/28/04 75.88 74.03
5,544.61 08/30104 75.33 73.48
5,545.23 09116/04 74.71 72.86
5,546.20 10/11104 73.74 7l.89
5,547.43 11116/04 72.51 70.66
5,548.96 12/22/04 70.98 69.13
5,549.02 01118/05 70.92 69.07
5,550.66 02/28/05 69.28 67.43
5,551.26 03115/05 68 .68 66.83
5,552.23 04126/05 67.71 65.86
5,552.87 05/24/05 67.07 65.22
5,553.42 06/30105 66.52 64.67
5,554.00 07/29/05 65.94 64.09
5,555.21 09/12/05 64.73 62.88
5,558.l3 12/07/05 61.81 59.96
5,562.93 03/08/06 57.01 55.16
5,564.39 06/13/06 55.55 53.70
5,562.09 07/18/06 57.85 56.00
5,565.49 11/07/06 54.45 52.60
557l.08 02/27/07 48.86 47.01
Water Levels and Data over Time
White Mesa Mill -Well TW 4-13
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
, Jevatioll urface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoriug (blw.MP) (blw.L D) Well
5 618.09 5619.94 1.85 121.33
5,570.63 05/02/07 49.31 47.46
5565.24 08114/07 54.7 52.85
5565.83 10/10/07 54.11 52.26
5,569.29 03/26/08 50.65 48.80
5570.00 06/24/08 49.94 48.09
5,570.41 08/26/08 49.53 47.68
5570.64 10/14/08 49.3 47.45
5,570.43 03/03/09 49.51 47.66
5,570.56 06/24/09 49.38 47.53
5,570.42 09/10109 49.52 47.67
5,57 J.t5 12/11 /09 48.79 46.94
5,572.0 1 03/11I10 47.93 46.08
5572.88 05111110 47.06 45.21
5,573.17 09/29/10 46.77 44.92
5,573.14 12 /21 /10 46.8 44.95
Water Levels and Data over Time
White Mesa Mill-Well TW4-14
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,610.92 5,612.77 1.85 121.33
5,518.90 08123/02 93.87 92.02
5,519.28 09111/02 93.49 91.64
5,519.95 10123/02 92.82 90.97
5,520.32 11122/02 92.45 90.60
5,520.42 12/03/02 92.35 90.50
5,520.70 01109/03 92.07 90.22
5,520.89 02112/03 91.88 90.03
5,521.12 03/26/03 91.65 89.80
5,521.12 04/02/03 91.65 89.80
5,521.24 05/01103 91.53 89.68
5,521.34 06/09103 91.43 89.58
5,521.36 07/07/03 91.41 89.56
5,521.35 08/04/03 91.42 89.57
5,521.30 09/11103 91.47 89.62
5,521.35 10/02/03 91.42 89.57
5,521.36 11/07/03 91.41 89.56
5,521.16 12/03/03 91.61 89.76
5,521.29 01115/04 91.48 89.63
5,521.36 02110/04 91.41 89.56
5,521.46 03128/04 91.31 89.46
5,521.54 04112/04 91.23 89.38
5,521.59 05113/04 91.18 89.33
5,521.69 06/18/04 91.08 89.23
5,521.71 07128/04 91.06 89.21
5,521.76 08/30/04 91.01 89.16
5,521.77 09116/04 91.00 89.15
5,521.79 10/11/04 90.98 89.13
5,521.80 11/16/04 90.97 89.12
5,521.82 12/22/04 90.95 89.10
5,521.82 01/18/05 90.95 89.10
5,521.86 02/28/05 90.91 89.06
5,521.85 03115/05 90.92 89.07
5,521.91 04126/05 90.86 89.01
5,521.93 05124105 90.84 88.99
5,521.94 06/30105 90.83 88.98
5,521.84 07/29105 90.93 89.08
5,521.99 09/12/05 90.78 88.93
5,522.04 12/07/05 90.73 88.88
5,522.05 03/08/06 90.72 88.87
5,522.27 06/13/06 90.50 88.65
5,521.92 07118/06 90.85 89.00
5,520.17 11/07/06 92.60 90.75
5522.24 02/27/07 90.53 88.68
Water Levels and Data over Time
White Mesa Mill-Well TW4-14
Total or
Measuring Measured Total
Water Land Point Depth to Depth to lotal
Elevation Sm'face Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MI') Riser (L) lVlonitoring (blw.MP) (blw.LSD) Well
5,610.92 5612.77 1.85 121.33
5,522.47 05102/07 90.30 88.45
5520.74 08114/07 92 .03 90.18
5,5 18.13 10/10107 94.64 92.79
5,522.85 03126/08 89.92 88.07
5,522.91 06124/08 89.86 88.01
5523.01 08/26/08 89.76 87.91
5522.96 10/14/08 89.81 87.96
5523.20 03/03/09 89.57 87.72
5523.33 06/24/09 89.44 87.59
5,523.47 09/\.0/09 89.3 87.45
5523.54 12/11 /09 89.23 87.38
5522.98 03/11110 89.79 87.94
5,524.0 1 05/11110 88.76 86.9 1
5,524,37 09/29110 88.40 6.55
5,524.62 12/21110 88.15 86.30
Water Levels and Data over Time
White Mesa Mill-Well TW4-1S (MW-26)
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,624.15 5,625.45 1.30 121.33
5,574.75 08/23/02 50.70 49.40
5,574.97 09111102 50.48 49.18
5,575.10 10/23/02 50.35 49.05
5,574.99 11122/02 50.46 49.l6
5,575.28 12/03/02 50.17 48.87
5,575.41 01109103 50.04 48.74
5,575.43 02112/03 50.02 48.72
5,575.63 03/26/03 49.82 48.52
5,575.91 04/02/03 49.54 48.24
5,575.81 05/01103 49.64 48.34
5,572.36 06/09103 53.09 51.79
5,570.70 07/07/03 54.75 53.45
5,570.29 08/04/03 55.16 53.86
5,560.94 09111103 64.51 63.21
5,560.63 10102/03 64.82 63.52
5,560.56 11/07/03 64.89 63.59
5,564.77 12/03/03 60.68 59.38
5,570.89 01115104 54.56 53.26
5,572.55 02110104 52.90 51.60
5,574.25 03/28/04 51.20 49.90
5,574.77 04/12/04 50.68 49.38
5,575.53 05113/04 49.92 48.62
5,575.59 06/18/04 49.86 48.56
5,576.82 07128/04 48.63 47.33
5,527.47 09116/04 97.98 96.68
5,553.97 11116/04 71.48 70.18
5,562.33 12/22/04 63.12 61.82
5,550.00 01118/05 75.45 74.15
5,560.02 04126/05 65.43 64.13
5,546.11 05/24/05 79.34 78.04
5,556.71 06/30105 68.74 67.44
5,554.95 07/29105 70.50 69.20
5,555.48 09/12/05 69.97 68.67
5,55l.09 12/07/05 74.36 73.06
5,552.85 03/08/06 72.60 71.30
5,554.30 06/13/06 71.15 69.85
5,554.87 07/18/06 70.58 69.28
5,550.88 11/07/06 74.57 73.27
5558.77 02/27/07 66.68 65.38
5,548.54 05/02/07 76.91 75.61
5,551.33 10/10107 74.12 72.82
5,545.56 03/26/08 79.89 78.59
5,545.56 06/25/08 79.89 78.59
Water Levels and Data over Time
White Mesa Mill-Well TW4-15 (MW-26)
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation urfaee Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (M P) Riser (L) Monitoring (bhv.MP) (bhv.LSD) Well
5,624.15 5625.45 1.30 12 L.33
5,545.82 08/26/08 79.63 78.33
5545.64 JOl14/08 79.8 1 78.51
5544.45 03/03/09 81.00 79.70
5,545.32 06/24/09 SO.13 78 .83
5,544.61 09110109 80.84 79.54
5,549.33 12/11 /09 76.12 74.S2
5543.78 03/11 /10 81.67 80.37
5545.61 05/1111 0 79.S4 78.54
5 547.43 09/29/LO 7 .02 76.72
5,544.14 121211 10 8 1.31 80.01
Water Levels and Data over Time
White Mesa Mill-Well TW4-16
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,622.19 5,624.02 1.83 121.33
5,562.91 08/23/02 61.11 59.28
5,563.45 09/11102 60.57 58.74
5,563.75 10/23/02 60.27 58.44
5,563.68 11122/02 60.34 58.51
5,563.68 12/03/02 60.34 58.51
5,564.16 01/09/03 59.86 58.03
5,564.25 02112/03 59.77 57.94
5,564.53 03/26/03 59.49 57.66
5,564.46 04/02/03 59.56 57.73
5,564.79 05101103 59.23 57.40
5,564.31 06/09/03 59.71 57.88
5,563.29 07/07/03 60.73 58.90
5,562.76 08/04/03 61.26 59.43
5,561.73 09111/03 62.29 60.46
5,561.04 10102/03 62.98 61.15
5,560.39 11107/03 63.63 61.80
5,559.79 12/03/03 64.23 62.40
5,561.02 01115104 63 61.17
5,561.75 02/10104 62.27 60.44
5,562.98 03/28/04 61.04 59.21
5,563.29 04/12/04 60.73 58.90
5,564.03 05113/04 59.99 58.16
5,564.09 06118/04 59.93 58.10
5,565.08 07/28/04 58.94 57.11
5,564.56 08/30104 59.46 57.63
5,563.55 09/16/04 60.47 58.64
5,561.79 10111104 62.23 60.40
5,560.38 11/16/04 63.64 61.81
5,559.71 12/22/04 64.31 62.48
5,559.14 01/18/05 64.88 63.05
5,558.65 02/28/05 65.37 63.54
5,558.54 03/15105 65.48 63.65
5,558.22 04/26/05 65.8 63.97
5,558.54 05124/05 65.48 63.65
5,559.24 06/30105 64.78 62.95
5,559.38 07/29/05 64.64 62.81
5,559.23 09112/05 64.79 62.96
5,557.67 12/07/05 66.35 64.52
5,557.92 03/08/06 66.10 64.27
5,558.47 06113/06 65.55 63.72
5,558.42 07118/06 65.60 63.77
5,558.09 11107/06 65.93 64.10
5557.34 02/27/07 66.68 64.85
Water Levels and Data over Time
White Mesa Mill-Well TW4-16
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Ul"f~ICC Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,622.19 5,624.02 1.83 121.33
5,547.1 1 05102107 76.91 75.08
5,558.52 08/14/07 65.5 63.67
5559.02 10110/07 65.00 63.17
5,561.04 03126/08 62.98 61..15
5,560.06 06124/08 63.96 62.13
5559.32 0'8126/08 64.7 62.87
5,558.89 10/]4/08 65.13 63.30
5,558.40 03/03 /09 65.62 63.79
5,558.32 06/24/09 65.7 63.87
5558.03 09/10109 65.99 64.16
555 .81 121l1l09 65.21 63.38
5,559.80 03/11110 64.22 62.39
5,559.85 05/11110 64.17 62.34
5,560.54 09129/10 63.48 61.65
5,55 .65 12121110 65.37 63.54
Water Levels and Data over Time
White Mesa Mill-Well TW4-17 (MW-32)
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,623.41 5,625.24 1.83 121.33
5,542.17 08/23/02 83.07 81.24
5,542.39 09111102 82.85 81.02
5,542.61 10123/02 82.63 80.80
5,542.49 11122/02 82.75 80.92
5,542.82 12/03/02 82.42 80.59
5,543.03 01109/03 82.21 80.38
5,543.04 02112/03 82.20 80.37
5,543.41 03126/03 81.83 80.00
5,543.69 04/02/03 81.55 79.72
5,543.77 05/01103 81.47 79.64
5,544.01 06/09/03 81.23 79.40
5,544.05 07/07/03 81.19 79.36
5,543.99 08/04/03 81.25 79.42
5,544.17 09/11/03 81.07 79.24
5,544.06 10/02/03 81.18 79.35
5,544.03 11/07/03 81.21 79.38
5,543 .94 12/03/03 81.30 79.47
5,543.98 01/15104 81.26 79.43
5,543.85 02/10104 81.39 79.56
5,544.05 03128/04 81.19 79.36
5,544.33 04/12/04 80.91 79.08
5,544.55 05/13/04 80.69 78.86
5,544.59 06118/04 80.65 78.82
5,545.08 07128/04 80.16 78.33
5,545.26 08/30104 79.98 78.15
5,545.48 09116/04 79.76 77.93
5,545.61 10111104 79.63 77.80
5,545.46 11/16/04 79.78 77.95
5,545.66 12/22/04 79.58 77.75
5,545.33 01118/05 79.91 78.08
5,545.51 02/28/05 79.73 77.90
5,545.57 03/15105 79.67 77.84
5,545.46 04/26/05 79.78 77.95
5,545.45 05/24/05 79.79 77.96
5,545.33 06/30105 79.91 78.08
5,545.16 07129/05 80.08 78.25
5,545.54 09112/05 79.70 77.87
5,545.77 12/07/05 79.47 77.64
5,546.09 03/08/06 79.15 77.32
5,545.94 06113/06 79.30 77.47
5,545.94 07/18/06 79.30 77.47
5,546.24 11107/06 79.00 77.17
5546.81 02127/07 78.43 76.6
Water Levels and Data over Time
White Mesa Mill-Well TW4-17 (MW-32)
Total or
Measuring Measured Total
Waler Land Point Depth to Depth to Total
Elevation urface Elevation Length Of Date Of Water Water Depth Of
(WL) (L D) (MP) Riser (L) Monitoring (blw.MP) (blw.L D) WeU
5,623.41 5,625.24 \.83 121.33
5546.56 05102/07 78.68 76.85
5546.81 08/15107 78.43 76.6
5546.96 101\ 0/07 78.28 76.45
5547.9 03126/08 77.34 75.51
554B.08 · 06125/08 77.16 75.33
5548.42 OB/26/08 76.B2 74.99
5548.05 10/14/08 77.19 75.36
5548.29 03/03/09 76.95 75.l2
5548.09 06/24/09 77.15 75.32
5547.79 09/10/09 77.45 75.62
5548.09 12/11/09 77.15 75.32
5548.50 03/11110 76.74 74.9 1
5 548. 9 05/11/10 76.35 74.52
5,548.83 09/291l0 76.41 74.58
5,548.97 12 /21 /10 76.27 74.44
Water Levels and Data over Time
White Mesa Mill-Well TW4-18
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,639.l3 5,641.28 2.15 121.33
5,585.l3 08/23/02 56.15 54.00
5,585.41 09111102 55.87 53.72
5,585.47 10/23/02 55.81 53.66
5,585.40 11/22/02 55.88 53.73
5,585.68 12/03/02 55.60 53.45
5,585.90 01109103 55.38 53.23
5,590.79 02112/03 50.49 48.34
5,586.18 03/26/03 55.10 52.95
5,586.36 04/02/03 54.92 52.77
5,586.24 05101/03 55.04 52.89
5,584.93 06/09103 56.35 54.20
5,584.46 07/07/03 56 .82 54.67
5,584.55 08/04/03 56.73 54.58
5,584.01 09111103 57.27 55.l2
5,583.67 10102/03 57.61 55.46
5,583.50 11/07/03 57.78 55.63
5,584.08 12/03/03 57 .20 55.05
5,585.45 01115104 55 .83 53.68
5,585.66 02110104 55.62 53.47
5,586.l3 03/28/04 55.15 53.00
5,586.39 04/12/04 54.89 52.74
5,586.66 05/13/04 54.62 52.47
5,586.77 06118/04 54.51 52.36
5,587.35 07/28/04 53.93 51.78
5,586.34 08/30104 54.94 52.79
5,585.85 09116/04 55.43 53.28
5,585.22 10/11/04 56.06 53.91
5,584.70 11116/04 56.58 54.43
5,584.81 12/22/04 56.47 54.32
5,584.68 01118/05 56.60 54.45
5,585.02 02/28/05 56.26 54.11
5,585.25 03115 /05 56.03 53.88
5,586.31 04126/05 54.97 52.82
5,586.97 05124/05 54.31 52.l6
5,586.58 06/30105 54.70 52.55
5,586.10 07/29105 55.18 53.03
5,586.05 09/12/05 55.23 53.08
5,585.86 12/07/05 55.42 53.27
5,587.l3 03/08/06 54.15 52.00
5,585.93 06/13/06 55.35 53.20
5,585.40 07/18/06 55.88 53.73
5,585.38 11/07/06 55.90 53.75
5585.83 02127/07 55.45 53.30
Water Levels and Data over Time
White Mesa Mill-Well TW4-18
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation urface Elevation Length Of Date Of Water Water Depth Of
(WL) (L D) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,639.13 5,641.28 2.15 121.33
5585.15 05/02/07 56.13 53.98
5586.47 06124/08 54.81 52.66
5586.3 08126/08 54.98 52.83
5585.21 10/14/08 56.07 53.92
5584.47 03/03/09 56.81 54.66
5584.35 06124/09 56.93 54.78
5583.88 0911 0/09 57.4 55 .25
5584.43 1211 1/09 56.85 54.70
5585.26 03 /11/10 56.02 53.87
5584.17 05/111 10 57.11 54.96
5 583 .61 09129/10 57.67 55.52
5,604.29 12/21.110 36.99 34.84
Water Levels and Data over Time
White Mesa Mill -Well TW 4-19
Total or
Measuring Measured
Water Land Point Depth to Total Depth
Elevation Surface Elevation Length Of Date Of Water to Water Total Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,629.53 5,631.39 1.86 121.33
5,581.88 08/23/02 49.51 47.65
5,582.14 09/11102 49.25 47.39
5,582.06 10/23/02 49.33 47.47
5,582.07 11/22/02 49.32 47.46
5,582.16 12/03/02 49.23 47.37
5,582.28 01/09/03 49.11 47.25
5,582.29 02121/03 49.10 47.24
5,582.74 03/26/03 48.65 46.79
5,582.82 04/02/03 48.57 46.71
5,548.47 05/01103 82.92 81.06
5,564.76 06/09/03 66.63 64.77
5,562.53 07/07/03 68.86 67.00
5,564.10 08/04/03 67.29 65.43
5,566.01 08/30104 65.38 63.52
5,555.16 09/16/04 76.23 74.37
5,549.80 10111104 81.59 79.73
5,546.04 11116/04 85.35 83.49
5,547.34 12/22/04 84.05 82.19
5,548.77 01118/05 82.62 80.76
5,551.18 02128/05 80.21 78.35
5,556.81 03115/05 74.58 72.72
5,562.63 04/26/05 68.76 66.90
5,573.42 05/24/05 57.97 56.11
5,552.94 07129/05 78.45 76.59
5,554.00 09/12/05 77.39 75.53
5,555.98 12/07/05 75.41 73.55
5,552.00 03/08/06 79.39 77.53
5,545.74 06/13/06 85.65 83.79
5,544.06 07/18/06 87.33 85.47
5,548.81 11107/06 82.58 80.72
5543.59 02127/07 87.8 85.94
5544.55 05/02/07 86.84 84.98
5558.97 08/15/07 72.42 70.56
5559.73 10110107 71.66 69.8
5569.26 03/26/08 62.13 60.27
5535.47 06/25/08 95.92 94.06
5541.41 08/26/08 89.98 88.12
5558.45 10114/08 72.94 71.08
5536.9 03/03/09 94.49 92.63
5547.76 06/24/09 83.63 81.77
5561.48 09110109 69.91 68.05
5548.14 12111/09 83.25 81.39
5,570.58 03111/10 60.81 58.95
Water Land
Elevation Surface
(WL) (LSD)
5 629.53
5,561.35
5,535.26
5,568.40
Water Levels and Data over Time
White Mesa Mill -Well TW4-19
Total or
Measuring Measured
Point Depth to
Elevation Length Of Date Of Wllter
(MP) Riser (L) Monitoring (blw.MP)
5,631.39 1.86
0511 1110 70.04
09/29/)0 96.13
12/21110 62 .99
Total Depth
to Watel' Total Depth Of
(blw.LSD) Well
121.33
68.18
94.27
6 1.1 3
Water Levels and Data over Time
White Mesa Mill-Well TW4-20
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,628.52 5,629.53 1.01 106.0
5,565.70 07/29105 63.83 62.82
5,546.53 08/30105 83.00 81.99
5,540.29 09112/05 89.24 88.23
5,541.17 12/07/05 88.36 87.35
5,540.33 03/08/06 89.20 88.l9
5,530.43 06/13/06 99.10 98.09
5,569.l3 07118/06 60.40 59.39
5,547.95 11107/06 81.58 80.57
5,549.25 02/27/07 80.28 79.27
5,550.58 05/02/07 78.95 77.94
5,563.60 08114/07 65.93 64.92
5,555.85 10110107 73.68 72.67
5,569.l0 03/26/08 60.43 59.42
5,560.00 06/25/08 69.53 68.52
5,539.64 08/26/08 89.89 88.88
5,539.51 10/14/08 90.02 89.01
5,553.00 03/03/09 76.53 75.52
5,534.l8 06124/09 95.35 94.34
5,558.39 09/10109 71.14 70.13
5,560.99 12/11/09 68.54 67.53
5,564.09 03/11110 65.44 64.43
5,564.22 05111/10 65.31 64.30
5,560.33 09/29/10 69.20 68.19
5,561.35 12/21110 68.18 67.17
Water Levels and Data over Time
White Mesa Mill-Well TW4-21
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,638.20 5,639.35 1.15 120.92
5,582.9 07/29/05 56.37 55.22
5,583.43 08 /30105 55.92 54.77
5581 .87 09112/05 57.48 56.33
5580.50 12/07/05 58.85 57.70
5,583.64 03/08/06 55.7 1 54.56
5,580.55 06113/06 58.80 57.65
5,578.95 07/18/06 60.40 59.25
5,578.47 11 /07/06 .60.88 59.73
5,579.53 02127/07 59.82 58.67
5,578.07 05102/07 61.28 60.13
5,583.41 08115107 55.94 54.79
5,583.45 10/10/07 55.9 54.75
5586.47 03/26/08 52.88 51.73
5,579.16 06/24/08 60.19 59.04
5,579.92 08126/08 59.43 58.28
5577.37 10114/08 61.98 60.83
5578.00 03/10/09 61.35 60.20
5,580.14 06/24/09 59.2 1 58.06
5,578.72 09110/09 60.63 59.48
5,579.99 12/1 Ll09 59.36 58.21
5582.81 03111 /10 56.54 55.39
5,582.23 0511 1/10 57 .12 55.97
5,576.60 09129110 62.75 61.60
5,581.14 )2/2111 0 58.21 57.06
Water Levels and Data over Time
White Mesa Mill -Well TW 4-22
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,627 .83 5,629.00 1.17 113.5
5,571.89 07 /29105 57.11 55.94
5,572.20 08/30105 56.80 55.63
5,572.08 09/12/05 56.92 55.75
5,571.61 12/07/05 57.39 56.22
5,571.85 03/08106 57.15 55.98
5,571.62 06/13/06 57.38 56.21
5,571.42 07118/06 57 .58 56.41
5,571.02 11107/06 57.98 56.81
5571.24 02127/07 57.76 56.59
5,570.75 06/29107 58 .25 57.08
5,571.82 08 /14/07 57.18 56.01
5,571.99 10/10107 57.01 55.84
5,573.05 03/26/08 55.95 54.78
5,573.04 06124/08 55.96 54.79
5,573.04 08126/08 55.96 54.79
5,573.02 10114/08 55.98 54.81
5,573.19 03110109 55.81 54.64
5,573.32 06/24/09 55.68 54.51
5,573.17 09110109 55.83 54.66
5,573.52 12111/09 55.48 54.31
5,573.88 03111110 55.12 53.95
5,574.29 05/11110 54.71 53.54
5,574.88 09/29/10 54.12 52.95
5,574.44 12/21110 54.56 53.39
Water Levels and Data over Time
White Mesa Mill -Well TW 4-23
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,627.83 5,629.00 1.17 113.5
5,560.52 09/13/07 68.48 67.31
5,560.43 10/10107 68.57 67.40
5,560.88 11130107 68.12 66.95
5,561.12 12/11107 67.88 66.71
5,560.82 01108/08 68.18 67.01
5,561.07 02118/08 67.93 66.76
5,561.17 03/26/08 67.83 66.66
5,561.34 04/23/08 67.66 66.49
5561.11 05/30108 67.89 66.72
5,561.16 06/24/08 67.84 66.67
5,561.07 07/16/08 67.93 66.76
5,561.31 08/26/08 67.69 66.52
5,562.81 09/10108 66.19 65.02
5,561.20 10/14/08 67.8 66.63
5,560.92 11126/08 68.08 66.91
5,561.18 12/29108 67.82 66.65
5,561.78 01126/09 67.22 66.05
5,561.37 02/24/09 67.63 66.46
5,561.49 03/06/09 67.51 66.34
5,561.35 04/07/09 67.65 66.48
5,561.47 05/29109 67.53 66.36
5,561.75 06/30109 67.25 66.08
5,561.75 07/31/09 67.25 66.08
5,561.90 08/31109 67.1 65.93
5,561.76 09/10109 67.24 66.07
5,562.27 12/11109 66.73 65.56
5,562.78 03/11110 66.22 65.05
5,563.24 05/11/10 65.76 64.59
5,563.10 09/29/10 65.90 64.73
5,563.17 12/21110 65.83 64.66
Water Levels and Data over Time
White Mesa Mill -Well TW 4-24
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,627.83 5,625.70 -2.13 113.5
5,568.48 09113/07 57.22 59.35
5,568.40 10110107 57.30 59.43
5,569.03 11130/07 56.67 58.80
5,569.17 12111107 56.53 58.66
5,568.90 01/08/08 56.80 58.93
5,569.09 02118/08 56.61 58.74
5,569.30 03126/08 56.40 58.53
5,569.55 04/23/08 56.15 58.28
5569.39 05/30108 56.31 58.44
5,569.21 06/24/08 56.49 58.62
5,569.15 07/16/08 56.55 58.68
5,569.21 08/26/08 56.49 58.62
5,569.10 09/10108 56.60 58.73
5,568.99 10114/08 56.71 58.84
5,568.82 11126/08 56.88 59.01
5,568.79 12/29108 56.91 59.04
5,569.52 01126/09 56.18 58.31
5,569.18 02124/09 56.52 58.65
5,569.24 03/06/09 56.46 58.59
5,569.08 04/07/09 56.62 58.75
5,569.10 05/29109 56.60 58.73
5,569.29 06/30109 56.41 58.54
5,569.25 07/31109 56.45 58.58
5,569.35 08/31109 56.35 58.48
5,569.15 09/10109 56.55 58.68
5,569.51 12111109 56.19 58.32
5,569.73 03 /11/10 55.97 58.10
5,569.78 05111110 55 .92 58.05
5,570.05 09/29/10 55 .65 57.78
5,569.73 12/2111 0 55.97 58.10
Water Levels and Data over Time
White Mesa Mill-Well TW4-2S
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,627.83 5,644.91 17.08 113.5
5,601.86 09/13/07 43.05 25 .97
5,601.89 10110107 43.02 25.94
5,602.57 11 /30107 42.34 25.26
5,602.82 12111107 42.09 25.01
5,601.94 01/08/08 42.97 25.89
5,599.13 02118/08 45.78 28.70
5,597.11 03/26/08 47.80 30.72
5,595.51 04/23/08 49.40 32.32
5594.42 05/30108 50.49 33.41
5,594.26 06/24/08 50 .65 33.57
5,586.67 07 /16/08 58.24 41.16
5,594.17 08/26/08 50.74 33.66
5,594.23 09110108 50.68 33.60
5,594.12 10114/08 50.79 33.71
5,594.06 11/26/08 50.85 33.77
5,594.87 12/29108 50.04 32.96
5,595.89 01126/09 49.02 31.94
5,596.27 02/24/09 48.64 31.56
5,596.47 03 /06/09 48.44 31.36
5,596.74 04/07/09 48.17 31.09
5,597.55 05/29109 47.36 30.28
5,598.11 06/30109 46.8 29.72
5,598.22 07/31109 46.69 29.61
5,598.52 08/31 /09 46.39 29.31
5,598.49 09110109 46.42 29.34
5,599.48 12111109 45.43 28.35
5,599.75 03/11110 45.16 28.08
5,599.63 05111110 45.28 28.20
5,598.68 09129/10 46.23 29.15
5,598.66 12/21 110 46.25 29.17
Water Levels and Data over Time
White Mesa Mill-Well TW4-26
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,599.98 5,601.68 1.70 86
5,536.90 06114110 64.78 63.08
5,536.95 09129/10 64.73 63.03
5537.17 12/2111 0 64.51 62.81
TabH
Laboratory Analytical Reports
EN:RGY
,~~ '1-/\1(-;: ,'_-
www.energylab.com
~w.n.-SItIu 1m
Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Caspar, WY 888-235-0515
GlIIatte, WY 86&-68&-1175 • Rapid City, so 888-&12-1225 • Collage Slatlon, lX 8BB-690-mS
LABORATORY ANALYTICAL REPORT
Client:
Project:
LabID:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00654-01 0
Client Sample ID: MW-4
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-0ichlorobenzene-d4
Surr: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
41
4.9
1.4
1500
NO
NO
105
113
98.0
104
D -Rl increased due to sample matrix.
Units
mg/l
mg/l
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
ReportDate: 11/11/10
Collection Date: 1 0/11/1 0 13 :05
DateReceived: 10/15/10
Matrix: Aqueous
MCll
Qualifiers RL QCl Method Analysis Date 1 By
1 A4500-CIB 10/26/10 11 :23/1r
D 0.5 E353.2 10/26/10 14:041 dc
1.0 SW8260B 10/22110 05:01 1 jlr
D 100 SW8260B 10/22110 01 :561 jlr
1.0 SW8260B 10/22110 05:01 1 jlr
1.0 SW8260B 10/22110 05:01 1 jlr
BO-120 SWB260B 10/2211005:011 jlr
70-130 SWB260B 10/22110 05:01 1 jlr
80-120 SW8260B 10/22110 05:01 1 jlr
BO-120 SWB260B 10/2211005:011 jlr
MCl -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 12 of 32
EN:RGY
I /\h t'..!h ',-I n-I)' S
www.energylab.com
~UuIIIMIstllU 1152
Helena, MY 877-472-0111 • Billings, MY 800-735-4489 • Casper, WY 888-235-0515
Gillatte, WY 81&.&88-7175 • Rapid City, SD 888-&72-1225 • College Station, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00654-009
Client Sample 10: TW4-1
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: l,2-Dichlorobenzene-d4
Surr: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
40
6.6
ND
1500
ND
ND
105
120
105
105
0-Rl increased due to sample matrix.
Units
mg/l
mg/l
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
Report Date: 11/11/10
Collection Date: 10/14/10 06:28
DateRecelved: 10/15/10
Matrix: Aqueous
MCL!
Qualifiers RL QCl Method Analysis Date I By
1 A4500-CI B 10/26/10 11 :21 Ilr
D 0.5 E353.2 10/26/1014:011 dc
1.0 SW8260B 10/23/10 05:06 I jlr
o 100 SW8260B 10/22110 16:41 I jlr
1.0 SW8260B 10/23/1005:06/ jlr
1.0 SW8260B 10/23/10 05:06 I jlr
80-120 SW8260B 10/23/10 05:061 jlr
70-130 SW8260B 10/23/10 05:061 jlr
80-120 SW8260B 10/23/10 05:06 I jlr
80-120 SW8260B 10/23/10 05:06 I jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 11 of 32
EN:RGY
LAU On;'ICHI:_'""
IWIW.enllfgyjab.com
AIII/ttkII EXc.IlwwISInc. lSU
Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515
GlllattB, WY 81&-686-7175 • Rapid City, SD 888-112-1225 • Collaga station, TX 888-&90-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab ID:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00654-019
Client Sample 10: TW4-1 R
Analyses
MAJOR IONS
Chloride
Nitrogen, Nltrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: l,2-0ichlorobenzene-d4
Surr: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-dB
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
NO
0.2
NO
NO
NO
NO
105
112
114
107
Units
mg/l
mg/l
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
Qualifiers RL
0.1
1.0
1.0
1.0
1.0
BO-120
70-130
BO-120
BO·120
Report Date: 11/11/10
Collection Date: 10/13/10 12:46
DateRecelved: 10/15/10
Matrix: Aqueous
MClI
QCL Method Analysis Date 1 By
A4500-CI B 10/26/10 12:021 Ir
E353.2 10/26/1014:41 Ide
SWB260B 10/25/10 1 B:27 1 jlr
SWB260B 10/25/10 18:271 jlr
SWB260B 10/25/10 1 B:27 1 jlr
SWB260B 10/25/10 1 B:27 1 jlr
SW8260B 10/25/10 1 B:27 1 jlr
SW8260B 10/25/10 18:271 jlr
SWB260B 10/25/10 1 B:27 1 jlr
SWB260B 10/25/10 1 B:27 1 jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 21 of 32
EI\ERGY
I_I.':.. _11 ,. 1(: ,~----;
www.energylab.com
A/l1/yIkM £xuIIwIct J/nu "52
Helena, lIT 877-472-0711 • Billings, MT 80D-735-4489 • Casper, WY 888-235-0515
Gillette, WY 8&&-&86-7175 • Rapid City, SD 888-&72-1225 • College StatlDn, TX 818-&90-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
LabID:
Denison Mines USA Corp
4th Quarter Chloroform 2010
Cl 01 00654-014
Client Sample 10: TW4-2
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-0ichlorobenzene-d4
Surr: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
Result
41
6.5
2.1
3000
NO
NO
110
127
107
104
o -RL increased due to sample matrix.
Units
mg/L
mg/L
ug/L
ug/L
ug/L
uglL
%REC
%REC
%REC
%REC
Report Date: 11/11/10
Collection Date: 10/14/10 06:45
DateReceived: 10/15/10
Matrix: Aqueous
MCll
Qualifiers RL QCl Method Analysis Date 1 By
A4500-CI B 10/26/10 11 :52/1r
o 0.5 E353.2 10/26/1014:21/dc
1.0 SW8260B 10/23/10 05:40 1 ilr
o 100 SW8260B 10/2211017:161 ilr
1.0 SW8260B 10/23/10 05:401 ilr
1.0 SW8260B 10/23/1005:401 ilr
80-120 SW8260B 10/23/10 05:40 1 ilr
70-130 SW8260B 10/23/10 05:40 1 ilr
80-120 SW8260B 10/23/10 05 :401 ilr
80-120 SW8260B 10/23/10 05:401 ilr
MCL -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 16 of 32
EI\ERGY
~ /".~ lO n;,\, Of.lH !..;
www.energylab.com
AH/yIaI EIa:IIIIKI smc. 1152
Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515
Gillette, WY 8&6-&86-7175 • Rapid City, SD 888-&72-1225 • College Slalion,1X 888-S90-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C 1 01 00403-001
Client Sample 10: TW4-3
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chlorolorm
Chloromethane
Methylene chloride
Surr: 1,2-Dichlorobenzene-d4
Surr: Dibromolluoromethane
Surr: p-Bromolluorobenzene
Surr: Toluene-dB
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
26
3.3
ND
ND
ND
ND
104
104
110
113
D -Rl increased due to sample matrix.
Units
mgll
mg/l
ug/l
ug/l
ug/l
ugll
%REC
%REC
%REC
%REC
Report Date: 10/27/10
Collection Date: 10/05/10 07:50
DateReceived: 10/08/10
Matrix: Aqueous
MClI
Qualifier Rl QCl Method Analysis Date 1 By
A4500-CI B 10120/10 14:44/1r
D 0.2 E353.2 10/21/10 12:571dc
1.0 SW8260B 10/14/10 15:591 mil
1.0 SW8260B 10/14/10 15:591 mil
1.0 SW8260B 10/14/10 15:591 mil
1.0 SW8260B 10/14/10 15:591 mil
80-120 SW8260B 10/14/10 15:591 mil
70-130 SW8260B 10/14/10 15:591 mil
80-120 SW8260B 10/14/10 15:591 mil
80-120 SWB260B 10/14/10 15:591 mil
MCl -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 3 of 26
EN:RGY
, l\jlOI<J\I OI/I ~'3
www.energylab.com
AllIITtkI/ ExulJNC4 S/nc. 1152
Helena, MY 871-472-0711 • Billings, MT 800-135-4419 . Casper, WY .11-235-0515
Gillette, WY 11&-188-7175 . Rapid City, SD 888·172·1225 . CollegeStatiDn,1X 888·680·2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
LablD:
Denison Mines USA Corp
4th Quarter Chloroform 2010
Cl 01 00403-013
Client Sample ID: TW4-3R
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: l,2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-dB
Report
Definitions:
Rl -Analy1e reporting limit.
QCl -Quality control limit.
Result
NO
0.1
NO
NO
NO
NO
104
104
100
101
Units
mgfl
mg/l
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
Qualifier Rl
0.1
1.0
1.0
1.0
1.0
80-120
70-130
BO-120
80-120
Report Date: 10/27/10
Collection Date: 10/04/10 08:45
DateReceived: 10/08/10
Matrix: Aqueous
MClf
QCl Method Analysis Date f By
A4500-CI B 10/20/10 15:14/1r
E353.2 10/21/10 13:391 dc
SW8260B 10/18/10 16:47 I jlr
SW8260B 1011 B/l 0 16:47 I jlr
SWB260B 1011 B/l 0 16:47 I jlr
SW8260B 10/18/1016:471 jlr
SW8260B 10/18/10 16:47 I jlr
SW8260B 1011 B/l 0 16:47 I jlr
SW8260B 10/18/10 16:47 I jlr
SWB260B 10/18/10 16:47 I jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 15 of 26
EN:RGY
l r\t!01:,\lGJ~Ii: S
www.energylab.com
MIIJIfaI~smr:. 1m
Helena, MT 871-412-0711 • Billings, MT 800-135-4489 • Casper, WY 888-235-0515
GiIIBita, WY 81&-18&-7115 • Rapid City, SD 888-&12-1225 • Collage SlatiDn, TX 888-&90-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00654-012
Client Sample 10: TW4-4
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
Result
38
7.1
1.3
1700
ND
ND
105
114
104
107
D -RL increased due to sample matrix.
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
%REC
%REC
%REC
%REC
Report Date: 11111/10
Collection Date: 10/11/1013:20
DateRecelved: 10/15/10
Matrix: Aqueous
MCL!
Qualifiers RL QCL Method Analysis Date 1 By
A4500-CI B 10/26/10 11 :27 Ilr
D 0.5 E353.2 10/26/1014:161 dc
1.0 SW8260B 10/22110 06: 141 jlr
D 100 SW8260B 10/22110 03:09/ jlr
1.0 SWB260B 10/2211006:141 jlr
1.0 SW8260B 10/22110 06:141 jlr
80-120 SW8260B 10/22110 06:141 jlr
70-130 SW8260B 10/2211006:141 jlr
80-120 SW8260B 10/22110 06: 141 jlr
BO-120 SWB260B 10122110 06: 141 jlr
MCl -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 14 of 32
mJ" EN:RGY
I , l· .. i l /\"10 :'1. ~
www.energylab.com
AH/yIkII EIuIIIilt:tI smc. 1152
Helena, MT 877·472·0711 • Billings, MT 800·735·4489 • Casper, WY 888·235·0515
Glllatte, WY 816-686·7175 • Rapid City, so 888·&12·1225 . Collogo Station, TX 888·&90·2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
LabID:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C 1 01 00654-001
Client Sample ID: TW4-5
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-0ichlorobenzene-d4
Surr: Olbromofiuoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-dB
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
Result
41
7.2
NO
11
ND
ND
104
102
114
10B
o -RL Increased due to sample matrix.
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
%REC
%REC
%REC
%REC
Report Date: 11/11/10
Collection Date: 10/13/10 09:15
DateRecelved: 10/15/10
Matrix: Aqueous
MCL!
Qualifiers RL QCL Method Analysis Date 1 By
A4500-CI B 10/26/10 11 :02/1r
0 0.5 E353.2 10/26110 13:01 1 dc
1.0 SWB260B 10/22110 11 :59 1 Jlr
1.0 SWB260B 1 0/22110 11 :59 1 jlr
1.0 SW8260B 10/22110 11 :591 jlr
1.0 SWB260B 10/22110 11 :59 1 jlr
BO-120 SWB260B 10/22110 11 :59 1 jlr
70-130 SWB260B 1 0/2211 0 11 :59 1 jlr
BO-120 SWB260B 1 0/2211 0 11 :59 / jlr
BO-120 SWB260B 1 0/22110 11 :59 / jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 3 of 32
EN:RGY
I_/'''~'_ll , IC ',I::-'---::
www.energyiab.CDm
AnIIytJaI ClC.fIII!Cf SI/TC. 1152
Helena, MT 877-412-0711 • Billings, MT 800-735-4419 • Caspar, WV 888-235-0515
Gillette, WY 8&8-888-7175 • Rapid City, SO 888·&72·1225 • Collage Station, TX 888·&90·2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab ID:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00654-018
Client Sample ID: TW4-5R
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-Dlchlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
RL -Analy1e reporting limit.
QCL -Quality control limit.
Result
NO
NO
NO
NO
NO
NO
103
97.0
110
106
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
%REC
%REC
%REC
%REC
Qualifiers Rl
0.1
1.0
1.0
1.0
1.0
80-120
70-130
80-120
80-120
Report Date: 11/11/10
Collection Date: 10/12/1008:15
DateRecelved: 10/15/10
Matrix: Aqueous
MCll
QCl Method Analysis Date 1 By
A4500-CI B 10/26/10 12:00 Ilr
E353.2 10/26/10 14:39 1 dc
SW8260B 10/22110 10:48 1 jlr
SW8260B 10/22110 10:481 jlr
SW8260B 10/22110 10:481 jlr
SW8260B 10/22110 10:48 1 jlr
SW8260B 10/22110 10:48 1 jlr
SW8260B 10/22110 10:481 jlr
SW8260B 10/22110 10:481 jlr
SW8260B 10/2211010:481 jlr
Mel -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 20 of 32
EN:RGY
I • E 1;,':.,.,· ..... -'
www.energyjab.com
AIIIfTtkM ~ smc. 1m
Helena, MT 877-472-0111 • Billings, MT 800·735·4489 • Casper, WY 888-235-0515
GiIIBtte, WY 816-&86-7175 · Rapid City, SD 888-&72-1225 • CollegeStation,1X 888-690·2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab ID:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00654-006
Client Sample ID: TW4-6
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-dB
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
41
4.3
ND
420
ND
ND
10B
114
104
102
D -Rl increased due to sample matrix.
Units
mg/l
mg/l
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
Report Date: 11/11/10
Collection Date: 10/13/10 10:15
DateReceived: 10/15/10
Matrix: Aqueous
MCl!
Qualifiers Rl QCl Method Analysis Date 1 By
1 A4500-CIB 10/26/10 11:15/1r
D 0.5 E353.2 10/26/10 13:18/dc
1.0 SWB260B 10/23/10 03:191 jlr
D 100 SWB260B 10/22110 14:551 jlr
1.0 SW8260B 10/23/10 03:191 jlr
1.0 SW8260B 10/23/10 03:191 jlr
BO-120 SW8260B 10/23/1003:191 jlr
70-130 SW8260B 10123/1003:191 jlr
80-120 SW8260B 10123/10 03:191 jlr
80-120 SW8260B 10/23/10 03:191 jlr
MCl -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 8 of 32
EI\ERGY
_ 'l' _), ,/11 I r~; I !,
www.energylab.com
.,..'ElUlllm:d/IlA 1m
Helene, PIT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515
Gillatte, WY 818-68&-7175 • Rapid City, SD 888-&72-1225 • CDllege SlallDn, 1X 888-690-221 B
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab ID:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C 1 01 00654-008
Client Sample ID: TW4-7
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: l,2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
RL -Analy1e reporting limit.
QCL -Quality control limit.
Result
38
4.0
ND
1100
ND
ND
108
104
108
105
D -RL increased due to sample matrix.
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
%REC
%REC
%REC
%REC
Report Date: 11/11/10
Collection Date: 10/13/10 10:35
DateReceived: 10/15/10
Matrix: Aqueous
MCll
Qualifiers Rl QCL Method Analysis Date I By
A4500-CI B 10/26/10 11 :20 / Ir
D 0.2 E353.2 10/26/10 13:591 dc
1.0 SW8260B 10/23/10 04:31 / jlr
D 100 SW8260B 10/2211016:05/ jlr
1.0 SW8260B 10/23/10 04:31 / jlr
1.0 SW8260B 10/23/10 04:31 / jlr
80-120 SWB260B 10/23/10 04:31 / jlr
70-130 SWB260B 10/23/1004:31/ jlr
BO-120 SWB260B 10/23/10 04:31 / jlr
BO-120 SWB260B 10/23/1004:31/ jlr
MCL -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 10 of 32
EN:RGY
• { l (\1-'/ I C :-',l J
www.energylab.com
AIII/ftIaI EzuIINA smu In2
Helena, MT 877-472·0111 • Billings, MT 801-735-4489 • Caspar, WY 888-235-0515
Gillette, WY 816-&88-7175 • Rapid City, SD 188-172-1225 . College StatlDn, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00403-008
Client Sample 10: TW4-8
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-0ichlorobenzene-d4
Surr: Dibromof/uoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analyte reporling limit.
QCl -Quality control limit.
Result
46
0.1
NO
NO
NO
NO
102
108
102
106
Units
mg/l
mg/l
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
Qualifier Rl
1
0.1
1.0
1.0
1.0
1.0
80-120
70-130
80-120
80-120
Report Date: 10/27/10
Collection Date: 10/05/10 08:05
DateRecelved: 10/08/10
Matrix: Aqueous
MCll
QCl Method Analysis Date I By
A4500-CI B 1 0/20/1 0 15 :04 fir
E353.2 10/21/10 13:19/dc
SW8260B 10/18/1016:101 jlr
SW8260B 1 011 8/1 0 16: 10 I jlr
SW8260B 10/18/1016:10 I jlr
SW8260B 10/18/1016:10 I jlr
SW8260B 10/18/1016:101 jlr
SW8260B 10/18/1016:10 I jlr
SW8260B 10/18/10 16:10 I jlr
SW8260B 10/18/1016:10 I jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 10 of 26
EN:RGY
L;:"( \OFfA' CHll ~;
www.8l1er[flab.com
AMI1tIRI ~ SIIIct 1112
Helena, tofT 871-412-0711 • Billings, tofT 8OD·135·4419 • Casper, W'( 888·235·0515
Gillatte, WY laa-m· 1115 • Rapid City, SD 888·172·1225 • College Station, lX 888·180·2218
lABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00403-009
Client Sample 10: TW4-9
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-0ichlorobenzene-d4
Surr: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analy1e reporting limit.
QCl -Quality control limit.
Result
34
1.8
NO
NO
NO
NO
109
112
96.0
102
Units
mg/l
mg/l
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
Qualifier Rl
1
0.1
1.0
1.0
1.0
1.0
80-120
70-130
80-120
80-120
Report Date: 10/27/10
Collection Date: 10/06/10 08:20
DateReceived: 10/08/10
Matrix: Aqueous
MCL!
QCl Method Analysis Date 1 By
A4500-CI B 10/20/10 15:06/ Ir
E353.2 10/21/10 13:29/ dc
SW8260B 1 0/18/1 0 23 :29 / ilr
SW8260B 10/18/10 23:291 ilr
SW8260B 10/18/10 23:29 1 jlr
SW8260B 10/18/10 23:291 jlr
SW8260B 10/1 8/10 23 :29 1 jlr
SW8260B 10/18/10 23:291 jlr
SW8260B 1 0/18/1 0 23 :29 / jlr
SW8260B 10/18/10 23 :29 1 jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 11 of 26
EN:RGY
LI\HOrU""O'nt ~
www.energylab.com
W/yIII:I/ ExufIInDI S/nu 'lSI
Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Gasper, WV888-235-0515
Gillatts, WY 888-&86-7175 • Rapid City, so 888-672-1225 • Collage station, TX 888-&90-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C 1 01 00654-003
Client Sample 10: TW4-10
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1.2-Dichlorobenzene-d4
Surr: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
52
11
ND
1100
NO
ND
104
109
113
108
D -RL increased due to sample matrix.
Units
mglL
mglL
ug/L
ug/L
ug/L
ug/L
%REC
%REC
%REC
%REC
Report Date: 11/11/10
Collection Date: 10/13/10 09:40
DateRecelved: 1 0/1 5/1 0
Matrix: Aqueous
MCLI
Qualifiers RL QCL Method Analysis Date I By
A4500-CI B 11/02/1010:20/Ir
0 E353.2 11/03/1012:031 dc
1.0 SW8260B 10/25/10 19:03 I jlr
0 100 SWB260B 10/25/10 16:06 I jlr
1.0 SWB260B 10/25/10 19:031 jlr
1.0 SW8260B 10/25/10 19:031 jlr
BO-120 SWB260B 10/25/10 19:031 jlr
70-130 SWB260B 10/25/10 19:031 jlr
BO-120 SWB260B 10/25/10 19:03 I jlr
BO-120 SW8260B 10/25/10 19:031 jlr
MCL -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 5 of 32
EN:RGY
t I~:.;or;/\ r r.r III <...:
www.etlergylab.com
AM/JIbI~S1Jru 1m
Helena, MT 877-472-0711 • Billings, MT 800-735-4489 . Casper, WY 888-235-0515
Gillatte, WY 8&&-&8&-7175 • Rapid City, SD 888-&72-1225 • College Station, TX 888-&90-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
LabID:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00654-007
Client Sample ID: TW4-11
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality conlrollimil.
Result
49
6.4
ND
720
ND
ND
104
109
106
103
D -Rl Increased due 10 sample matrix.
Units
mg/l
mg/l
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
Report Date: 11/11/10
Collection Date: 10/13/10 10:25
DateReceived: 10/15/10
Matrix: Aqueous
MCll
Qualifiers Rl QCl Method Analysis Date 1 By
1 A4500-CI B 10/26/10 11: 18 Ilr
D 0.5 E353.2 10/26/10 13:56 1 dc
1.0 SW8260B 10/23/10 03:551 jlr
D 100 SW8260B 10/22110 15:30 1 jlr
1.0 SW8260B 10/23/10 03:551 jlr
1.0 SW8260B 10/23/10 03:551 jlr
80-120 SW8260B 10/23/10 03:551 jlr
70-130 SW8260B 10/23/10 03:551 jlr
80-120 SWB260B 10/23/10 03:55 1 jlr
80-120 SW8260B 10/23/10 03:55 1 jlr
MCl -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 9 of 32
EN:RGY
I I' .. f lonAl C'r'o/Ii: r;
www.energylab.com
AI/II1fIDI bu#IIa SInA 1m
Helena, MT 817-472-0711 • Billings, MT 800-135-4489 • Casper, WY 888-235-0515
Gillatte, WY 816-686-7175 • Rapid City, SD 888-672-1225 • College StatiDn, 1X 888-&80-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00403-002
Client Sample 10: TW4-12
Analyses
MAJOR IONS
Chloride
Nitrogen. Nltrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-Dlchlorobenzene-d4
Surr: Dibromotluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
31
8
ND
ND
ND
ND
107
111
114
107
D -Rl increased due to sample matrix.
Units
mg/l
mgll
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
Report Date: 10/27/10
Collection Date: 10/05/10 09:05
DateRecelved: 10108/10
Matrix: Aqueous
MCll
Qualifier Rl QCl Method Analysis Date I By
A4500-CI B 10/20/10 14:46 Ilr
D E353.2 10/21/10 12:591 dc
1.0 SW8260B 10/14/10 16:341 mlf
1.0 SW8260B 10/14/10 16:341 mlf
1.0 SW8260B 10/14/1016:341 mit
1.0 SW8260B 10/14/10 16:341 mit
80-120 SW8260B 10/14/10 16:341 mit
70-130 SW8260B 10/14/10 16:341 mit
80-120 SW8260B 10/14/10 16:341 mit
80-120 SW8260B 10/14/10 16:341 mit
MCl -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 4 of26
EN:RGY
• I" !.h G'/l'")"-t.t ~I
www.energylab.com
AM/ftJ3J ExulllllclSIIu 1112
Helena, lIlT 877-472-0711 • Billings, MT 800-135·4489 • Casper, WY 888-235-0515
Gillette, WY 81&-686-7175 • Rapid City, SIl888-172-1225 • College Stalion, "IX 888-680-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
LablD:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00403-003
Client Sample ID: TW4-13
Analyses
MAJOR IONS
Chloride
Nitrogen, Nltrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromotluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
55
5.8
ND
NO
NO
ND
103
120
118
104
D -Rl increased due to sample matrix.
Units
mg/l
mg/l
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
Report Date: 10/27/10
Collection Date: 10/05/10 08:50
DateReceived: 10/08/10
Matrix: Aqueous
MCL!
Qualifier Rl QCl Method Analysis Date I By
A4500-CI B 10/20/10 14:48 I Ir
D 0.5 E353.2 10/21/10 13:021 dc
1.0 SW8260B 10/14/10 17:091 mit
1.0 SWB260B 10/14/10 17:091 mil
1.0 SWB260B 10/14/10 17:091 mil
1.0 SW8260B 10/14/10 17:09 1 mlf
80-120 SW8260B 10/14/10 17:091 mil
70-130 SWB260B 10/14/10 17:091 mit
BO-120 SWB260B 10/14/1017:091 mit
80-120 SW8260B 10/14/10 17:091 mit
MCl -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 5 of 26
EN:RGY
l', ...... ( • J\ I ~-:::.. ~ ~.
www.energylab.com
AN/fIIa/ EzuIJtIq ShJu 1152
Helen., MT 811-472-0111 • Billings, MT 800-735·4489 • Casper, WY 188-235-0515
Gillette, WY 118·186·7175 • Rapid City, SD 888·&72·1225 • College SlatiDn, TX 888·690·2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C 1 01 00403-004
Client Sample 10: TW4-14
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-0ichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
29
2.9
NO
ND
ND
NO
107
11B
10B
100
D -Rl Increased due to sample matrix.
Units
mg/l
mg/l
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
Report Date: 10/27/10
Collection Date: 10106/10 14:00
DateRecelved: 10/08/10
Matrix: Aqueous
MCll
Qualifier Rl QCl Method Analysis Date 1 By
1 A4500-CI B 10/20/10 14:49 1 Ir
D 0.2 E353.2 10/21/1013:091 dc
1.0 SWB260B 10/14/10 17:441 mlf
1.0 SWB260B 10/14/10 17:441 mlf
1.0 SWB260B 10/14/10 17:441 mlf
1.0 SWB260B 10/14/10 17:44 1 mlf
BO-120 SW8260B 10/14/10 17:441 mlf
70-130 SWB260B 10/14/10 17:44 1 mlf
80-120 SWB260B 10/14/10 17:44 1 mlf
80-120 SW82608 10/14/10 17:44 1 mlf
MCl -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 6 of 26
EN:RGY
• f.U ..... H -;/,J nl~p ~
www.energylab.com
AMItbI~ .. 1152
Helena, MT 871-412-0711 • Billings, MT 800-7J5·4489 • Casper, WY 888-235·0515
Gillette, WY 188·681·1175 • Rapid City, SD 888·172·1225 • College Station, TX 888·890·2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00403-014
Client Sample 10: TW4-14R
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
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
0.1
NO
NO
NO
NO
106
103
95.0
106
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
%REC
%REC
%REC
%REC
Qualifier RL
0.1
1.0
1.0
1.0
1.0
80-120
70-130
80-120
BO-120
Report Date: 10/27/10
Collection Date: 10/05/10 09:35
DateRecelved: 10/08/10
Matrix: Aqueous
MCL!
QCL Method Analysis Date 1 By
A4500-CI B 1 0/20/1 0 15: 16 1 Ir
E353.2 10/21/1013:491 dc
SW8260B 10/19/10 00:06/ jlr
SWB260B 10/19/10 00:06/ jlr
SWB260B 10/19/10 00:06/ jlr
SWB260B 1 0/19/1 0 00 :06 / jlr
SWB260B 10/19/10 00:06/ jlr
SW8260B 10/19/10 00:06/ jlr
SWB260B 10/19/10 00:06/ jlr
SWB260B 10/19/10 00:06/ jlr
MCL -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 16 of 26
EI\ERGY
t \I ' J ',/' j r " I -=
www.enereYIab.com
AM/ytkM~stnc. IHI
Helena, MT 877-472-0711 • Billings, MT 800-135-4489 • Casper, WY 888-235-0515
Gilletta, WY 8&&-&8&-7175 • Rapid City, SD 888-172-1225 • College Station, 1X 888-&90-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab ID:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00654-013
Client Sample ID: TW4-15
Analyses
MAJOR IONS
Chloride
Nitrogen. Nltrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-Dichlorobenzene-d4
Surr: Dibromotluoromethane
Surr: p-Bromotluorobenzene
Surr: Toluene-dB
Report
Definitions:
RL -Analy1e reporting limit.
QCL -Quality control limit.
Result
65
0.7
ND
970
ND
6.5
100
110
98.0
106
D -RL increased due to sample matrix.
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
%REC
%REC
%REC
%REC
Report Date: 11/11/10
Collection Date: 10/11/1012:10
DateReceived: 10/15/10
Matrix: Aqueous
MCLI
Qualifiers RL QCl Method Analysis Date I By
A4500-CI B 10/26/1011 :50 Ilr
0.1 E353.2 10/26/10 14:19/dc
1.0 SWB260B 10/22/10 06:50 I jlr
D 100 SWB260B 10/22110 03:461 jlr
1.0 SWB260B 10/2211 0 06 :50 I jlr
1.0 SWB260B 10/22110 06:50 I jlr
BO-120 SWB260B 10/22110 06:50 I jlr
70-130 SWB260B 10/22110 06:50 I jlr
BO-120 SWB260B 10/22110 06:50 I jlr
BO-120 SWB260B 10/22110 06:50 I jlr
MCL -Maximum contaminantleve/.
ND -Not detected at the reporting limit.
Page 15 of 32
EN:RGY
lr.li'}(·/\fClnl 'J
www.energylab.com
AM/yIIaI EIuIMI:I stnu '152
Helena, MT 871-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515
GIIIRlta, WY 8&6-&86-7175 • Rapid City, SD 818-172-1225 • College Station, TX 188-&90-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C10100403-011
Client Sample 10: TW4-16
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-0ichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
72
3.3
NO
3.0
NO
NO
106
114
107
104
o -RL Increased due to sample matrix.
Units
mg/l
mg/L
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
Report Date: 10/27/10
Collection Date: 10106/10 08:05
DateReceived: 10108/10
Matrix: Aqueous
MCL!
Qualifier RL QCL Method Analysis Date I By
A4500-CI B 10/27/10 13:08 Ilr
0 0.2 E353.2 10/21/10 13:341 dc
1.0 SW8260B 10/18/10 17:591 jlr
1.0 SW8260B 10/18/10 17:59/ jlr
1.0 SW8260B 10/18/10 17:59 / jlr
1.0 SW8260B 10/18/10 17:59 I jlr
80-120 SW8260B 10/18/10 17:59 / jlr
70-130 SW8260B 10/18/10 17:591 jlr
80-120 SW8260B 10/18/10 17:59 I jlr
80-120 SW8260B 10/18/10 17:59 / jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 13 of 26
EN:RGY
. Al,Onl\Tcnn "J
www.energyiab.com
"'~5Ia'Hl
Helena, MT 877472·0711 • Billings, MT 800·735·4489 • Casper, WY 888·235·0515
Glilatte, 'NY 816-186·7175 • Rapid City, SD 888·172·1225 • College Station, IX 888-S80·2218
lABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C 10100403-005
Client Sample ID: TW4-17
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chlorolorm
Chloromethane
Methylene chloride
Surr: 1,2-0ichlorobenzene-d4
Surr: Oibromolluoromethane
Surr: p-Bromolluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
24
NO
NO
NO
NO
NO
106
120
113
105
Units
mg/l
mg/l
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
Qualifier RL
0.1
1.0
1.0
1.0
1.0
80-120
70-130
80-120
80-120
Report Date: 10/27/10
Collection Date: 10106/10 14:35
DateRecelved: 10108/10
Matrix: Aqueous
MCL!
QCL Method Analysis Date I By
A4500-CI B 10/20/10 14:52 1 Ir
E353.2 10/21/10 13:12/dc
SW8260B 10/14/10 18:201 mil
SW8260B 10/14/10 18:201 mil
SW8260B 10/14/10 18:201 mil
SW8260B 10/14/10 18:201 mil
SW8260B 1 0/14/1 0 18 :20 1 mil
SW8260B 10/14/10 18:201 mil
SW8260B 10/14/10 18:201 mit
SW8260B 10/14/10 18:201 mit
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 7of26
EI\ERGY
I i"'I,-""I,'.AT'· 1~~:;
www.energylab.com
~ EIruIIInu SInu 1151
Helena, MT 871-412-0111 • Billings, MT 800-135-4489 • Casper, WY 888-235-0515
Gillotte, WV 816-18&-1115 • Rapid City, SD 888-&12-1225 • College StaliDn, 1X 888-&90-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
LabID:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00654-002
Client Sample ID: TW4-18
Analyses
MAJOR IONS
Chloride
Nitrogen, Nltrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-0ichlorobenzene-d4
Surr: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-dB
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
Result
50
10
NO
30
NO
NO
110
104
116
109
o -RL increased due to sample matrix.
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
%REC
%REC
%REC
%REC
Report Date: 11/11/10
Collection Date: 10/13/10 09:28
DateRecelved: 10/15/10
Matrix: Aqueous
MCLI
Qualifiers RL QCL Method Analysis Date 1 By
A4500-CI B 11/02110 10:lB Ilr
0 E353.2 10/26/10 13:031 dc
1.0 SWB260B 10/22110 12:341 jlr
1.0 SWB260B 10/22110 12:341 jlr
1.0 SWB260B 10/22110 12:341 jlr
1.0 SWB260B 10/22110 12:34 1 jlr
BO-120 SWB260B 10/22110 12:341 jlr
70-130 SW8260B 1 0/22110 12:341 jlr
80-120 SWB260B 10/22110 12:341 jlr
BO-120 SWB260B 10/22110 12:341 jlr
MeL -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 4 of 32
EN:RGY
L /\'~OJ •• ' I en!' ~
www.energylab.com
AtlII1fkI/&uIIIM:ISha 1m
Helens, MT 877-472-0711 • Billings, MT 800-735-4419 • Casper, YN 888-235-0515
GIllIittB, WY 8&&-&86-7175 • Rapid City, SD 888-&72-1225 • Collage Slation, TX 888-&90-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00654-011
Client Sample 10: TW4-19
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: l ,2-0ichlorobenzene-d4
Surr: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-dB
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
146
2.7
1.3
1200
NO
NO
102
114
99.0
101
D -Rl increased due to sample matrix.
Units
mg/l
mgll
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
Report Date: 11/11/10
Collection Date: 10/11/1014:10
DateRecelved: 10/15/10
Matrix: Aqueous
MCll
Qualifiers Rl QCl Method Analysis Date 1 By
A4500-CI B 11/02l1010:23/1r
D 0.2 E353.2 10/26/10 14:06 1 dc
1.0 SW8260B 10/22/10 05:37 1 jlr
D 100 SWB260B 10/22110 02:33 1 jlr
1.0 SW8260B 10/22110 05:371 jlr
1.0 SWB260B 10/22110 05:371 jlr
BO-120 SWB260B 10/22110 05:37 1 jlr
70-130 SWB260B 10/22110 05:371 jlr
BO-120 SWB260B 10/22110 05:37 1 jlr
BO-120 SWB260B 10/22110 05:371 jlr
MCl -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 13 of 32
EI\ERGY
t.ld·--JOH~\l (:IJt[ ':..
www.energylab.com
AtlI(JtIQI Ex&",,", Sinu 1152
Helena, MT 877-472-D711 • Billings, MT 800-735-4419 • Caspar, WY 888-235-0515
Gillatta, WY 886-686-7175 • Rapid City, SO 888-&12-1225 • College Station, 1]( 888-&90-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00654-015
Client Sample 10: TW4-20
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-dB
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
203
4.6
20
24000
ND
5.5
107
140
107
103
D -RL increased due to sample matrix.
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
%REC
%REC
%REC
%REC
Report Date: 11/11/10
Collection Date: 10/11/10 11 :55
DateReceived: 10/15/10
Matrix: Aqueous
MCU
Qualifiers RL QCL Method Analysis Date 1 By
1 A4500-CI B 1 0/26/1 0 11 :54/1r
D 0.5 E353.2 10/26/10 14:241 dc
1.0 SWB260B 10/22110 07:27 1 ilr
o 1000 SWB260B 10/2211004:231 ilr
1.0 SWB260B 10/22110 07:271 ilr
1.0 SWB260B 10/22110 07:271 ilr
BO-120 SWB260B 10/22110 07:271 jlr
S 70-130 SWB260B 10/22110 07:27 1 jlr
80-120 SWB260B 10/22110 07:271 jlr
BO-120 SWB260B 10/22110 07:271 jlr
Mel -Maximum contaminant level.
ND -Not detected at the reporting limit.
S -Spike recovery outside of advisory limits.
Page 17 of 32
EN:RGY
t ,\HOr t/,,"cr tit ~j
www.energylab.com
AHIYIbI EIuIIwa SIncI 1152
Helens, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515
Gillatte, WY 8&&-888-7175 • Rapid City, SD 888-672-1225 • College StatiDn, 1X 888-&90-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab ID:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00654-004
Client Sample ID: TW4-21
Analyses
MAJOR IONS
Chloride
Nitrogen, Nltrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-Dichlorobenzene-d4
Surr: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-dB
Report
Definitions:
Rl -Analyte reporting limit.
aCl -Quality control limit.
Result
210
7.0
1.2
200
NO
NO
107
110
117
lOB
o -Rl increased due to sample matrix.
Units
mg/l
mg/l
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
Report Date: 11/11/10
Collection Date: 10/13/10 09:55
DateRecelved: 10/15/10
Matrix: Aqueous
MCll
Qualifiers RL QCL Method Analysis Date I By
A4500-CI B 10/26/10 11:12/1r
o 0.5 E353.2 10/26/10 13:13/dc
1.0 SWB260B 10/25/10 19:391 jlr
o 100 SW8260B 10/25/10 16:41 1 jlr
1.0 SWB260B 10/25/10 19:39 I jlr
1.0 SWB260B 10/25/10 19:391 jlr
BO-120 SWB260B 10/25/10 19:391 jlr
70-130 SW8260B 10/25/10 19:391 jlr
BO-120 SWB260B 10/25/10 19:39 I jlr
BO-120 SWB260B 10/25/10 19 :39 I jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 6 of32
EN:RGY
I ' 11 " .... 1 _ of ~
www.energylab.com
AMI1tIa/~SIDA lISt
Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515
GiliBtte, WY 8&&-&86-7175 • Rapid City, SD 888-&72-1225 • College station, 1X 888-69D-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
LabID:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00654-005
Client Sample ID: TW4-22
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-dB
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
134
16
ND
340
ND
NO
108
104
101
103
o -RL increased due to sample matrix.
Units
mg/L
mg/l
ug/l
ug/l
ug/L
ug/L
%REC
%REC
%REC
%REC
ReportDate: 11/11/10
Collection Date: 10/13/10 10:05
DateRecelved: 10/15/10
Matrix: Aqueous
MCL!
Qualifiers RL QCL Method Analysis Date 1 By
A4500-CI B 10/26/1011 :14/1r
D E353.2 10/26/1013:161 dc
1.0 SW8260B 10/23/10 02:441 jlr
D 100 SW8260B 10/22/10 14:201 jlr
1.0 SW8260B 10/23/10 02:441 jlr
1.0 SW8260B 10/23/10 02 :44 1 jlr
80-120 SW8260B 10/23/10 02 :44 1 jlr
70-130 SW8260B 10/23/1002:441 jlr
80-120 SW8260B 10/23/10 02:441 jlr
80-120 SW8260B 10/23/10 02:441 jlr
MCl -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 7 of 32
EN:RGY
t /l,;-.,on~'\1 Cr.-II S
www.energylab.com
AlM/yliaIElulltllu .. Ign
Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515
Gillette, WY 1&6-&86-7175 • Rapid City, SD &88-&72-1225 • College Station, 1X 888-690-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab ID:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00403-006
Client Sample ID: TW4-23
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-0ichlorobenzene-d4
Surr: Oibromolluoromethane
Surr: p-Bromolluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analyte reporting limit.
QCL -Quality control limit.
Result
34
NO
NO
NO
NO
NO
105
112
118
99.0
Units
mgll
mg/l
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
Qualifier Rl
1
0.1
1.0
1.0
1.0
1.0
80-120
70-130
80-120
80-120
Report Date: 10/27/10
Collection Date: 10/05/10 08:25
DateReceived: 10/08/10
Matrix: Aqueous
MClI
QCl Method Analysis Date 1 By
A4500-CI B 10120110 14:55 1 Ir
E353.2 10/21/10 13:14/dc
SW8260B 10/14/10 18:55 1 mlf
SW8260B 10/14/10 18:55 1 mil
SW8260B 10/14/10 18:551 mil
SW8260B 10/14/10 18:551 mil
SW8260B 10/14/10 18:551 mil
SW8260B 10/14/10 18:551 mlf
SW8260B 10/14/10 18:55 1 mil
SW8260B 10/14/10 18:55 1 mlf
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 8 of 26
EN:RGY
I ,,\11(.1./'<.1 ' i t~
Helene, MT 877-412-0111 • Billings, MT 801-735·448. • Casper, WY 888-235-0515
Gillette, WY 8&&-&86-7175 • Rapid City, SD 888-112-1225 • College Station, TX 888-680-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab ID:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00403-01 0
Client Sample ID: TW4-24
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-0ichlorobenzene-d4
Surr: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-dB
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
522
31
NO
1.4
NO
NO
104
112
102
102
o -Rl increased due to sample matrix.
Units
mg/l
mg/l
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
Report Date: 10/27/10
Collection Date: 10/06/10 08:40
DateRecelved: 10/08/10
Matrix: Aqueous
MCL!
Qualifier RL QCL Method Analysis Date I By
1 A4500-CI B 1 0/20/1 0 15 :09 /ir
0 2 E353.2 10/21/1013:321 dc
1.0 SW8260B 10/18/10 17:23 I ilr
1.0 SW8260B 10/18/10 17:23 1 jlr
1.0 SW8260B 1 011 8/1 0 17 :23 I ilr
1.0 SW8260B 10/1811 0 17:231 jlr
80-120 SW8260B 10/18/10 17:231 ilr
70-130 SW8260B 10/18/10 17:231 ilr
80-120 SW8260B 10/18/1017:231 jlr
BO-120 SW8260B 10/18/10 17:23 I ilr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 12 of 26
EN:RGY
1 I\Cl0 n,. .. rOl-.tIl-G
www.energylab.com
AM/yfaI El1:tIItiIII Stnu /112
Helena, MY 877-472-0711 • Billings, MY 800-735-4489 • Casper, WY 888-235-0515
Gillette, WY 818-686-7175 • Rapid City, SD 888-812-1225 . College Station, 1X 888-890-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab ID:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00403-007
Client Sample ID: TW4-25
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
Result
312
15
ND
ND
ND
ND
105
111
102
106
D -RL increased due to sample matrix.
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
%REC
%REC
%REC
%REC
Report Date: 10/27/10
Collection Date: 10/05/10 07:25
DateReceived: 10/08/10
Matrix: Aqueous
MCL!
Qualifier RL QCL Method Analysis Date 1 By
A4500-CI B 10/20/10 15:031 Ir
D E353.2 10/21/1013:171 dc
1.0 SW8260B 10/18/10 15:33 1 jlr
1.0 SW8260B 10/18/10 15:33 1 jlr
1.0 SW8260B 10/18/10 15:331 jlr
1.0 SW8260B 10/18/10 15:331 jlr
80-120 SW8260B 10/18/10 15:331 jlr
70-130 SW8260B 10/18/10 15:331 jlr
80-120 SW8260B 10/18/10 15:331 jlr
80-120 SW8260B 10/18/10 15:33 1 jlr
MCL -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 9 of 26
EN:RGY
l f~:: .n",. ... l Ci1'Il-:J
.' , m:t" www.energylab.com
AtII/fIlI:I/ ~SInCI rm Helena, MT 877-472-0711 • Billings, MT BOO-m-"8! • Casper, WY 888-235-0515
Gillette, WY 81&-&88-7175 • Rapid City, SD 888-&72-1225 • CollegeSlatlon, TX 888-680-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00403-012
Client Sample 10: TW4-26
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-Dichlorobenzene-d4
Surr: Dlbromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
Result
22
9.6
ND
5.4
ND
ND
112
114
101
99.0
D -RL increased due to sample matrix.
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
%REC
%REC
%REC
%REC
Report Date: 10/27/10
Collection Date: 10/06/1007:45
DateReceived: 10/08/10
Matrix: Aqueous
MCll
Qualifier Rl QCl Method Analysis Date I By
A4500-CI B 10/20/10 15:13 fir
0 0.5 E353.2 10/21110 13:371dc
1.0 SW8260B 10/18/10 22:53 / jlr
1.0 SW8260B 10/18/10 22:53 I jlr
1.0 SW8260B 10/18/10 22:53/ jlr
1.0 SW8260B 10/1 8/1 0 22 :53 I jlr
80-120 SW8260B 1 0/1 8/1 0 22 :53 I jlr
70-130 SW8260B 1 0/1 8/1 0 22 :53 / jlr
80-120 SW8260B 10/18/10 22:53/ jlr
80-120 SW8260B 10/18/10 22:53/ jlr
MCL -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 14 of 26
EN:RGY
LI\l)onAl CHIt: ~
~.
~ www.energylab.com
AHIyIIaI ExuIIMu $Inu /152
Helena, MT 877-472-0711 • Billings, MTBOD-735-4489 • Caspar, WY 888-235-0515
Gillatta, WY 888-688-7175 • Rapid City, SD 888-872-1225 • Col/ago Stalion, TX 888-&90-221B
LABORATORY ANALYTICAL REPORT
Client:
Project:
LablD:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00654-016
Client Sample ID: TW4-60
Analyses
MAJOR IONS
Chloride
Nitrogen, Nltrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analy1e reporting limit.
QCL -Quality control limit.
Result
NO
NO
NO
NO
NO
NO
111
127
119
109
Units
mgll
mgll
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
Qualifiers Rl
0.1
1.0
1.0
1.0
1.0
80-120
70-130
80-120
80-120
Report Date: 11/11/10
Collection Date: 10/14/10 07:00
DateRecelved: 10/15/10
Matrix: Aqueous
MCll
QCl Method Analysis Date 1 By
A4500-CI B 10/26/10 11 :57 Ilr
E353.2 10/26/10 14:26 1 dc
SW8260B 10/25/10 17:52/ ilr
SW8260B 10/25/10 17:52/ i'r
SW8260B 10/25/10 17:52/ ilr
SW8260B 10/25/10 17:52/ ilr
SW8260B 10/25/10 17:52 / ilr
SW8260B 10/25/10 17:52/ i'r
SW8260B 10/25/10 17:52 / ilr
SW8260B 10/25/10 17:52/ ilr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 18 of 32
EI\ERGY
I I,UOr~:d or.Jl~ ....
www.energylab.com
AM/ftIaI EIRItAw SIIIU 'lIZ
Helena, MT 871-412-0111 • Billings, MT 80D-135-4489 • Casper, WY 888-235-0515
Gillette, WY 818-186-7175 • Rapid City, SD 888-812-1225 • College Station, 1X 888-&80-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00403-016
Client Sample 10: TW4-65
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-dB
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
Result
34
1.B
ND
ND
ND
ND
105
10B
102
101
D -RL increased due to sample matrix.
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
%REC
%REC
%REC
%REC
Report Date: 10/27/10
Collection Date: 10/06/10 08:20
DateReceived: 10/08/10
Matrix: Aqueous
MCll
Qualifier Rl QCl Method Analysis Date 1 By
A4500-CI B 10/20/10 15:18 fir
D 0.2 E353.2 10/21/10 13:541 dc
1.0 SWB260B 10/19/10 07:23 1 Jlr
1.0 SWB260B 10/19/10 07:23 1 jlr
1.0 SWB260B 10/19/10 07:231 jlr
1.0 SWB260B 10/19/10 07:23 1 jlr
BO-120 SWB260B 10/19/10 07:23 1 jlr
70-130 SWB260B 10/19/10 07:23 1 jlr
BO-120 SWB260B 10/19/10 07:23 1 jlr
BO-120 SWB260B 10/19/10 07:23 1 jlr
MCl -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 18 of 26
EN:RGY
l AIl0r:~i.T(JUn ~
www.energyiab.com
AnIlTfkl/ Ezc.II~.sIIK. 1152
Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515
Gillette, WY 816-&86-7175 • Rapid City, SD 888-872-1225 • Collage Station, 1X 888-&90-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00654-017
Client Sample 10: TW4-70
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-0ichlorobenzene-d4
Surr: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
40
6.5
NO
740
NO
NO
107
110
118
107
D -Rl increased due to sample matrix.
Units
mg/l
mg/l
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
Report Date: 11/11/10
Collection Date: 10/14/10 06:28
DateReceived: 1 0/15/1 0
Matrix: Aqueous
MCll
Qualifiers Rl QCl Method Analysis Date 1 By
1 A4500-CI B 10/26/10 11 :58/ Ir
o 0.5 E353.2 10/26/10 14:36 1 dc
1.0 SW8260B 10/25/10 20:151 jlr
o 100 SW8260B 10/26/10 16:431 jlr
1.0 SW8260B 10/25/10 20:151 jlr
1.0 SW8260B 10/25/10 20:151 jlr
80-120 SW8260B 10/25/10 20:151 jlr
70-130 SW8260B 10/25/1020:151 jlr
80-120 SW8260B 10/25/10 20:151 jlr
80-120 SW8260B 10/25/1020:151 jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 19 of 32
EN:RGY
~ i.d":)I-U\ICfjl[~,;>
www.eneriflab.com
~ElullKllSIIJq IIIZ
Helena, MT 871-472-0111 • Billings, MT 800-131-4489 • Casper, WY 888-235-0515
Gillette, WV 11&-888-7175 • Rapid City, SD 888-172-1225 • College Station, TX 818-&80-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab ID:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00403-017
Client Sample 10: Temp Blank
Analyses
PHYSICAL PROPERTIES
Temperature
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result Units
2.0
Qualifier RL
Report Date: 10/27/10
Collection Date: 10/06/10
DateRecelved: 10/08/10
Matrix: Aqueous
MCL!
QCL Method Analysis Date 1 By
E170.1 10/08/10 09 :00 1 kbh
MCl -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 19 of 26
EI\ERGY
L/,i)OnAJC!.t1t s
www.energyiab.com
AIIIIyIiaI ~ fIIIU '152
Helens, MT 871-412-0111 • Billings, MT 800-135-4489 • Casper, WY 888-235-0515
Gillette, WY 88&-&8&-7175 • Rapid City, SO 888-&12-1225 • Colloge Station, lX 888-690-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C 1 01 00654-021
Client Sample 10: Temp Blank
Analyses
PHYSICAL PROPERTIES
Temperature
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result Units
3.0
Qualifiers Rl
Report Date: 11/11/10
Collection Date: 10/14/10
DateReceived: 10/15/10
Matrix: Aqueous
MCLI
QCl Method Analysis Date / By
E170.1 10/15/10 09:15/ kbh
MCl -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 23 of32
EN:RGY
l i~!. .(Jr.,A~ I C t l ~
, .. Helena, r.tT 871-412-0711 • Billings, r.tT 808-735-4419 . Casper, WY 888-235-0515
Gillatte, WY 816-886-7175 • Rapid City, SIl 888-172-1225 • College Sialion, TX 888-&80-2218
LABORATORY ANAL VTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00403-015
Client Sample 10: Trip Blank
Analyses
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
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
105
111
96.0
103
Units
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
Qualifier Rl
1.0
1.0
1.0
1.0
80-120
70-130
80-120
80-120
Report Date: 10/27/10
Collection Date: 10/05/10
DateReceived: 10/08/10
Matrix: Aqueous
MCL!
QCl Method Analysis Date 1 By
SW8260B 10/1911 0 00 :42 1 jlr
SW8260B 10/19/10 00:421 jlr
SW8260B 10/19/10 00:421 jlr
SW8260B 1 0/19/1 0 00 :42 1 jlr
SW8260B 10/19/10 00:421 jlr
SW8260B 10/19/10 00:42 1 jlr
SW8260B 10/19/10 00:42 1 jlr
SW8260B 10/19/10 00:42 1 jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 17 of 26
EN:RGY
'.,.!:~~):fl\l(j:-·1 ~
www.energylab.com
AIII/ftItII EzuIIIm:I SInu "52
Helena, MT 817-472-0711 • Billings, MT 800-135-4489 • Casper, WY 888-235-0515
Glllatte, WY 8&&-68&-7115 • Rapid City, SD 888-&12-1225 · CollegeSlatlDn, TX 888-&90-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Denison Mines USA Corp
4th Quarter Chloroform 2010
C1 01 00654-020
Client Sample 10: Trip Blank
Analyses
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-0ichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-dB
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
NO
NO
NO
NO
102
96.0
109
10B
Units
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
Qualifiers Rl
1.0
1.0
1.0
1.0
BO-120
70-130
BO-120
BO-120
Report Date: 11/11/1 0
Collection Date: 10/11/10
DateReceived: 10/15/10
Matrix: Aqueous
MCL!
QCl Method Analysis Date 1 By
SWB260B 10/22/10 11 :23 1 jlr
SWB260B 10/22110 11 :231 jlr
SWB260B 10/22110 11 :23 1 jlr
SWB260B 10/22110 11 :23 1 jlr
SWB260B 10/22/10 11 :23 1 jlr
SWB260B 10/22110 11 :23 1 jlr
SWB260B 10/22110 11 :23 1 jlr
SWB260B 10/22110 11 :23 1 jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 22 of 32
EI'tERGY
• I\.I~ ( )h /\ I C:~. j <. '-~
www.energyfab.com
ANIy/II:II~"'f1!2
Helena, MT 877-472-0711 • Billings, MT 80D-735-4489 • Casper, ¥IV 888-235-0515
Gilletti, WY 8&6-888-7175 • Rapid City, SD 888-172-1225 • College SlaliDn, TX 888-&90-2218
ANAL VTICAL SUMMARY REPORT
October 27,2010
Denison Mines USA Corp
6425 S Hwy 191
Blanding, UT 84511
Workorder No.: C10100403 Quote ID: C2975 -Chloroform Sampling
Project Name: 4th Quarter Chloroform 2010
Energy Laboratories, Inc. received the following 17 samples for Denison Mines USA Corp on 10/8/2010 for analysis.
Sample 10 Client Sample 10 Collect Date Receive Date Matrix Test
C 1 01 00403-001 TW4-3 10105/10 07:50 10108/10 Aqueous Chloride
Nitrogen, Nitrate + Nitrite
SW8260B VOCs, Standard List
C 10100403-002 TW4-12 10105/10 09 :05 10108/10 Aqueous Same As Above
C 10100403-003 TW4-13 10/05/10 08:50 10108/10 Aqueous Same As Above
C1 01 00403-004 TW4-14 10/06/10 14:00 10/08/10 Aqueous Same As Above
C 10100403-005 TW4-17 10/06/10 14:35 10/08/10 Aqueous Same As Above
C1 01 00403-006 TW4-23 10/05/10 08:25 10/08/10 Aqueous Same As Above
C 10100403-007 TW4-25 10/05/10 07:25 10108/10 Aqueous Same As Above
C1 01 00403-00B TW4-8 10/05/10 08 :05 10108/10 Aqueous Same As Above
C1 01 00403-009 TW4-9 10/06/10 OB :20 10108/10 Aqueous Same As Above
C1 01 00403-01 0 TW4-24 10106/10 08:40 10108/10 Aqueous Same As Above
C1 01 00403-011 TW4-16 10/06/10 08:05 10108/10 Aqueous Same As Above
C1 01 00403-012 TW4-26 1 0/06/1 0 07:45 1 0108/1 0 Aqueous Same As Above
C1 01 00403-013 TW4-3R 10/04/10 OB :45 10/08/10 Aqueous Same As Above
C1 01 00403-014 TW4-14R 10105/10 09 :35 10108/10 Aqueous Same As Above
C1 01 00403-015 Trip Blank 10/05/10 00 :00 10/08/10 Aqueous SWB260B VOCs, Standard List
C1 01 00403-016 TW4-65 10/06/10 OB :20 10108/10 Aqueous Chloride
Nitrogen, Nitrate + Nitrite
SWB260B VOCs, Standard List
C1 01 00403-017 Temp Blank 10/06/10 00 :00 10108/10 Aqueous Temperature
This report was prepared by Energy Laboratories, Inc., 2393 Salt Creek Hwy., Casper, WY 82601. Any exceptions
or problems with the analyses are noted in the Laboratory Analytical Report, the QAlQC Summary Report, or the
Case Narrative.
The results as reported relate only to the item(s) submitted for testing.
If you have any questions regarding these test results, please call.
Report Approved By: ~~.D tJ~~
Reporting Supervisor
Digitally signed by
Stephanie Waldrop
Date: 2010.10.27 14:58:20 -06:00
Page 1 of 26
www.energylab.com
AM/ytkI/~st.u ,m Helena, MT 877-472-D711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515
Gillette WY 1&6-686-7175 . Ra fd C' SO 888-672-1225 . Co11e e Station TX 88B-690-2218
CLIENT: Denison Mines USA Corp
Project: 4th Quarter Chloroform 2010 Report Date: 10/27/10
Sample Delivery Group: C 10100403 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 ND (not detected), the sample meets EPA compliance criteria for
PCB monitoring.
SUBCONTRACTING ANALYSIS
Subcontracting of sample analyses to an outside laboratory may be required. If so, ENERGY LABORATORIES will utilize its
branch laboratories or qualified contract laboratories for this service. Any such laboratories will be indicated within the
Laboratory Analytical Report.
BRANCH LABORATORY LOCATIONS
eli-b -Energy Laboratories, Inc. -Billings, MT
eli-g -Energy Laboratories, Inc. -Gillette, WY
eli-h -Energy Laboratories, Inc. -Helena, MT
eli-r -Energy Laboratories, Inc. -Rapid City, SD
eli-t -Energy Laboratories, Inc. -College Station, TX
CERTIFICATIONS:
USEPA: WY00002, Radiochemical WY00937; FL-DOH NELAC: E87641, Radiochemical E871 017; California: 02118CA;
Oregon: WY200001; Utah: 3072350515; Virginia: 00057; Washington: C1903
ISO 17025 DISCLAIMER:
The results of this Analytical Report relate only to the items submitted for analysis.
ENERGY LABORATORIES, INC. -CASPER,WY certifies that ce~ain method selections contained in this report meet
requirements as set forth by the above accrediting authorities. Some results requested by the client may not be covered
under these certifications. All analysis data to be submitted for regulatory enforcement should be certified in the sample
state of origin. Please verify ELI's certification coverage by visiting www.energylab.com
ELI appreciates the opportunity to provide you with this analytical service. For additional information and services visit our
web page www.energylab.com.
Page 2 of 26
EN:RGY
_1\tJO.~/\l CHit :;
tEl" www.energyfab.com Helena,lff 871-412-0111 • Billings, MT 801-135-4489 • Casper, WY 888-235-0515
~I EIuIIwa .. ,IU GillBtlB, WY 11&-188-7115 • Rapid City, SD 888-112-1225 • College Station, TX 888-690-2218 ==----------------~--------~----------~~~------------~--~---------
OA/oe Summary Report
Client: Denison Mines USA Corp
Project: 4th Quarter Chloroform 2010
Report Date: 10/27/10
Work Order: C10100403
Analyte
Method: A4500-CI B
Sample 10: MBLK9-101020
Chloride
Sample 10: C10100403'()06AMS
Chloride
Sample 10: C10100403-006AMSO
Chloride
Sample 10: C10100403-016AMS
Chloride
Sample 10: C10100403-016AMSO
Chloride
Sample 10: LCS35-101020
Chloride
Method: A4500-CI B
Sample 10: ICV10-101027
Chloride
Method: A4500-CI B
Sample 10: MBLK9-101027
Chloride
Sample 10: LCS35·101027
Chloride
Qualifiers:
RL -Analyte reporting limit.
Count Result Units RL %REC Low Limit High Limit RPO RPOLImit Qual
Method Blank
ND mg/L 0.5
Sample Matrix Spike
213 mg/L 1.0
Sample Matrix Spike Duplicate
215 mg/L 1.0
Sample Matrix Spike
69.9 mg/L 1.0
Sample Matrix Spike Duplicate
70.2 mg/L 1.0
Laboratory Control Sample
3580 mg/L 1.0
Initial Calibration Verification Standard
3550 mg/L 1.0
Method Blank
ND mg/L 0.5
Laboratory Control Sample
3510 mg/L 1.0
Batch: 101020-CL-TTR-W
Run : TITRATION_101020A 10/20/1014:34
Run : TITRATION_101020A 10/20/1014:57
101 90 110
102
101
102
101
100
Run: TITRATlON_101020A
90 110
Run: TITRATION_101020A
90 110
Run: TITRATION_101020A
90 110
Run: TITRATION_101020A
90 110
0.8
0.5
10/20/1 0 14 :59
10
10/20/10 15:19
10/20/10 15:21
10
10/20/1 0 15 :23
Analytical Run: TITRATION_101027B
10/27/10 13:03
90 110
Run: TITRATlON_101027B
Run: TITRATION_101027B
Batch: 101027-CL-TTR-W
10/27/1013:01
10/27/1013:14
99 90 110
ND -Not detected at the reporting limit.
Page 20 of 26
EN:RGY
_,·,B0 -'/\1'_1 'l ~
Client: Denison Mines USA Corp
Helena, MT 877-472-0711 • Billings, MT 801·735·4489 • Casper, WY 888-235-0515
Gillette, WY 88&-886-7175 • liapld City, SD 888·&72·1225 • College Station, IX 888-&90-2218
QA/QC Summary Report
Report Date: 10/27/10
Project: 4th Quarter Chloroform 2010 Work Order: C10100403
Analyte Count Result Units RL O/OREC Low Limit High Limit RPO RPOLlmlt Qual
Method: E353.2 Batch: R138839
Sample 10: MBLK·1 Method Blank Run : TECHNICON_101021A 10/21/1012:27
Nitrogen, Nitrate+Nitrite as N ND mglL 0.04
Sample 10: LCS·2 Laboratory Control Sample Run : TECHNICON_l0l021A 10/21/1012:29
Nitrogen, Nitrate+Nitrite as N 2.53 mglL 0.10 101 90 110
Sample 10: C10100332·0030MS Sample Matrix Spike Run: TECHNICON_l01021A 10/21/1012:44
Nitrogen, Nitrate+Nitrite as N 1.94 mg/L 0.10 97 90 110
Sample 10: C10100332·0030MSO Sample Matrix Spike Duplicate Run: TECHNICON_l 01 021 A 10/21/1012:47
Nitrogen, Nitrate+Nitrite as N 2.0B mg/L 0.10 103 90 110 B 10
Sample 10: C10100403·008BMS Sample Matrix Spike Run: TECHNICON_l01021A 10/21/1013:22
Nitrogen, Nitrate+Nitrite as N 2.30 mg/L 0.10 108 90 110
Sample 10: C10100403·008BMSO Sample Matrix Spike Duplicate Run: TECHNICON_101021A 10/21/1013:24
Nitrogen, Nitrate+Nitrite as N 2.24 mg/l 0.10 lOB 90 110 2.B 10
Sample 10: C10100407·003CMS Sample Matrix Spike Run: TECHNICON_l0l021A 10/21 /1014:04
Nitrogen, Nitrate+Nitrite as N 2.12 mg/L 0.10 10B 90 110
Sample 10: C10100407·003CMSO Sample Matrix Spike Duplicate Run: TECHNICON_1 01 021 A 10/21 II 0 14:07
Nitrogen, Nitrate+Nitrite as N 2.15 mg/l 0.10 107 90 110 1.4 10
Qualifiers:
Rl -Analyte reporting limit. ND -Not detected at the reporting limit.
Page 21 of 26
EN:RGY
l/'~OP;~lOI~1I :.,
www.energylab.com
AII/ttiI:M buIIIDI:w .. 1m
Helene, Mr 871-412-0711 • Billings, Mr 800-135-4419 • Casper, WY 888-235-0515
GillBl:l:e, WY 81&-688-7175 • Rapid City, SI) 888-172-1225 • College Station, TX 888-890-2218
QA/QC Summary Report
Client: Denison Mines USA Corp Report Date: 10/27/10
Project: 4th Quarter Chloroform 2010 Work Order: C10100403
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLlmlt Qual
Method: SW8260B Batch: R138772
Sample 10: 101810_LCS_4 8 Laboratory Control Sample Run: SATURNCA_l0l018B 10/18/10 12:17
Carbon tetrachloride 10 ug/L 1.0 101 70 130
Chloroform 10 ug/L 1.0 103 70 130
Chloromethane 9.0 ug/L 1.0 90 70 130
Methylene chloride 9.3 ug/L 1.0 93 70 130
Surr: 1,2-0ichlorobenzene-d4 1.0 106 BO 120
Surr: Oibromofluoromethane 1.0 113 70 130
Surr: p-Bromofluorobenzene 1.0 112 BO 130
Surr: Toluene-dB 1.0 101 80 120
Sample 10: 101810_MBLK_6 8 Method Blank Run: SATURNCA_l0l018B 10/18/1013:29
Carbon tetrachloride NO ug/L 1.0
Chloroform NO ug/L 1.0
Chloromethane NO ug/L 1.0
Methylene chloride NO ug/L 1.0
Surr: 1,2-0ichlorobenzene-d4 1.0 107 BO 120
Surr: Oibromofluoromethane 1.0 lOB 70 130
Surr: p-Bromofluorobenzene 1.0 lOB BO 120
Surr: Toluene-d8 1.0 101 BO 120
Sample 10: C10100486-007AMS B Sample Matrix Spike Run: SATURNCA_l 01 018B 1011 Bll 0 19:49
Carbon tetrachloride 110 ug/L 10 109 70 130
Chloroform 120 ug/L 10 117 70 130
Chloromethane 100 ug/L 10 101 70 130
Methylene chloride 100 ug/L 10 102 70 130
Surr: 1,2-0ichlorobenzene-d4 1.0 109 BO 120
Surr: Dibromofluoromelhane 1.0 117 70 130
Surr: p-Bromofluorobenzene 1.0 112 BO 120
Surr: Toluene-dB 1.0 99 BO 120
Sample 10: C10100486-007AMSD B Sample Matrix Spike Duplicate Run: SATURNCA_l0l018B 1011 Bll 0 20:26
Carbon tetrachloride 110 ug/L 10 107 70 130 1.9 20
Chloroform 110 ug/L 10 113 70 130 3.5 20
Chloromethane 100 ug/L 10 100 70 130 1.2 20
Methylene chloride 100 ug/L 10 100 70 130 2.B 20
Surr: 1,2-0ichlorobenzene-d4 1.0 114 BO 120 0 10
Surr: Dibromofluoromethane 1.0 112 70 130 0 10
Surr: p-Bromofluorobenzene 1.0 lOB BO 120 0 10
Surr: Toluene-dB 1.0 100 BO 120 0 10
Qualifiers:
RL -Analyle reporting limit. ND -Not detected at the reporting limit.
Page 22 of 26
EI\ERGY
A BOn/dCPn: s
www.enerKYi~b.com
AIIIIytIaI ~ SIIIu 1m
Helena, NT 877-412-0711 • Billings, MT 800-735·4489 • Casper, WY 888-235·0515
Gillette, WY 81&-688-1115 • Rapid City, SD 888·672·1225 • College Station, TX 888·690·2218
QA/QC Summary Report
Client: Denison Mines USA Corp Report Date: 10/27/10
Project: 4th Quarter Chloroform 2010 Work Order: C10100403
Analyte Count Result Units RL %REC Low Limit High LImit RPO RPOLimit Qual
Method: SW8260B Batch: R138776
Sample 10: 14-0ct-10_ICV_3 8 Laboratory Control Sample Run: GCMS2_101014A 10/14/10 12:33
Carbon tetrachloride 11 ug/L 1.0 114 70 130
Chloroform 10 ug/L 1.0 101 70 130
Chloromethane 9.3 ug/L 1.0 93 70 130
Methylene chloride 9.9 ug/L 1.0 99 70 130
Surr: 1,2-Dichlorobenzene-d4 1.0 105 80 120
Surr: Dibromofluoromethane 1.0 100 70 130
Surr: p-Bromofluorobenzene 1.0 105 80 130
Surr: Toluene-d8 1.0 106 80 120
Sample 10: 14-0ct-10_MBLK_6 B Method Blank Run: GCMS2_101014A 10/14/10 14:1B
Carbon tetrachloride ND uglL 1.0
Chloroform NO uglL 1.0
Chloromethane ND ug/L 1.0
Methylene chloride NO uglL 1.0
Surr: 1,2-Dichlorobenzene-d4 1.0 9B BO 120
Surr: Dibromofluoromethane 1.0 96 70 130
Surr: p-Bromofluorobenzene 1.0 107 BO 120
Surr: Toluene-dB 1.0 100 BO 120
Sample 10: C10100408-001GMS B Sample Matrix Spike Run: GCMS2_101014A 10/14/1020:41
Carbon tetrachloride 290 ug/L 20 145 70 130 S
Chloroform 250 ug/L 20 125 70 130
Chloromethane 260 ug/L 20 129 70 130
Methylene chloride 240 ug/L 20 119 70 130
Surr: 1,2-Dichlorobenzene-d4 1.0 106 BO 120
Surr: Dibromofluoromethane 1.0 115 70 130
Surr: p-Bromofluorobenzene 1.0 104 80 120
Surr: Toluene-dB 1.0 10B BO 120
Sample 10: C10100408-001GMSO 8 Sample Matrix Spike Duplicate Run: GCMS2_101014A 10/14/1021 :17
Carbon tetrachloride 270 ug/L 20 133 70 130 B.3 20 S
Chloroform 230 ug/L 20 116 70 130 7.7 20
Chloromethane 250 ug/L 20 124 70 130 3.B 20
Methylene chloride 200 ug/L 20 102 70 130 15 20
Surr: 1,2-Dichlorobenzene-d4 1.0 106 80 120 0 10
Surr: Dibromofluoromethane 1.0 10B 70 130 0 10
Surr: p-Bromofluorobenzene 1.0 10B 80 120 0 10
Surr: Toluene-d8 1.0 100 80 120 0 10
Qualifiers:
RL -Analyte reporting limit. ND -Not detected at the reporting limit.
S -Spike recovery outside of advisory limits.
Page 23 of 26
EN:RGY
1 .. ·~t)I~/ .. I C·fJl l·.'
~-www.energylab.com
~ AulylJl:MEJUIIMcI~ 1m
Helena, MT 877-472-0711 • BIllings, MT 800-735-4489 • Casper, WY 888-235-0515
Gillette, WY 1&6-686-7175 • Rapid City, SD 888-672-1225 . College Station, 1X 888-690-2218
Workorder Receipt Checklist
Denison Mines USA Corp
1111111 ~IIIIIIIIIIII IIIIIIII~ IIIIII~~ IIIII jllill
C10100403
Login completed by: Tabitha Edwards
Reviewed by: BL2000\scarlston
Reviewed Date: 10/18/2010
Shipping container/cooler in good condition?
Custody seals intact on shipping container/cooler?
Custody seals intact on sample bottles?
Chain of custody present?
Chain of custody signed when relinquished and received?
Chain of custody agrees with sample labels?
Samples in proper container/bottle?
Sample containers intact?
Sufficient sample volume for indicated test?
All samples received within holding time?
ContainerfTemp Blank temperature:
Water -VOA vials have zero headspace?
Water -pH acceptable upon receipt?
Contact and Corrective Action Comments:
None
Yes 0"
Yes 0"
Yes 0
Yes 0"
Yes 0"
Yes 0"
Yes 0"
Yes 0"
Yes 0"
Yes 0"
2'C On Ice
Yes 0"
Yes 0"
Date Received: 10/8/2010
Received by: smd
Carrier name: Fed Ex
NoO
No 0
No 0
NoO
No 0
No 0
No 0
No 0
No 0
No 0
Not Present 0
Not Present 0
Not Present 0"
No 0
No 0
No VOA vials submitted 0
Not Applicable 0
Page 24 of 26
"'tl Dl co C1l
N CJ1 a -N 0)
Chain of Custody and Analytical Request Record Page_\_of~ "'Bl.aV
•• rfllliaRtH« ... PLEASE PRINT (Provide as much information as DosslbleJ
Company Name: Project Name, PWS, Permit, Etc. Sample Origin EPA/State Compliance: ~;~f'I M~"e~ 4Th Q~r Chlor"'().Q,r1l') State: lA' Yes ~ No 0
Report Mail Address: PO ef})( gO,\ Contact Name: Phone/Fax: Email: Sampler: (Please Print)
B)on~,n~ I 0.'-8Ll5' I R~o.J\ ?o..\m~ ~b~~\ J;'",,41.r ~t>JI:clr..,*
Invoice Address: Invoice Contact & Phone: Purchase Order: Quote/Bottle Order: '"
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Cl G> RUSH sample submittal
for charges and CooierlD(.j; ~o <1):6 ~ R ~1:O;gol G> 0 scheduling -See
(1/t"" I-
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53:= ~ 0> t2 I "C ReceiptT_p D POTWfWWTP Format: u 0 c:: () c Comments: '5<c~ImI~ ~ ::J U ~ « a DC o State: D LEVEL IV "':!fii a;§ I-m " c D Other: D NELAC ~~I1ii ' ~ :; On Ice: (:jN
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«I C;) H Intact V N
SAMPLE IDENTIFICATION Collection Collection MATRIX Slgnatul1I '; N (Name, Location, Interval, etc.) Date Time Match
1 ..x I I~ J{)lirJ.Jo:'2: Th,)4-~ \C· Er;7D\O 0"7-50 S-w
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R.e<:elY9d by (prinl): atelTime: Slgl"lSiure:
\'"D-t\(\U Holl:aAA\. )o·7-"~IO \130 .... Record Relinquished by (print): U Date{1"me: Signature; V Recelv9d by (print): Oale/Time: s~nai1) J ff MUST be
Signed K .... MHI I)Y LaDOraIOry. D81efT~ /t~p 1_,tt .7%P{ Sample Dlsoosal: Return to Client: Lab Disposal:
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. J.--
""C Ql co CD
I\J 0> a -.
I\J 0>
Chain of Custody and Analytical Request Record Page~of~ .tI!IItIIlml' PLEASE PRINT (Provide as much information as possible.)
Company Name: Project Name, PWS, Permit, Etc. Sample Origin EPA/State Compliance: D~~n M,f16 qn, Qu.o..rt~r Lhl()fOforf""\ ~OIO State: u..'1 Yes ~ No 0
Report Mail Address: Contact Name: Phone/Fax: Email: Sampler: (Please Print) p ~ i30'f ~O'\ R~o.1' ?,,-\~(,r 4~ f,78~' "'-:t\t'U' HI> lI;J~~ B1M~~(14 \AT ~~.511
I rwoice Address: IJ Invoice Contact & Phone: Purchase Order: Quote/Bottle Order: I 5)~M<" ~tlI.m-c
Special ReporVFormats: ~W~® OO§@IJD~§@) .. Contact Ell prior to "7/ilY
. 3: RUSH sample submittal ")/ tV 0 ~
"'0 on G) [ for charges and CiKMr lOis): ' ~ID~~ Q; 0 R scheduling -See (i/lv~/t ._> 0 >-ro w Instruction Page DDW D EDDJEDT(Electronic Data) j!l(/)~ m 3: 63;= tQ C) '-L) I "0 R.'tT ..... P o POTWfWWTP U e: Comments: Format: Uc(~I~~ e U 't5 .... Ie: t'" ~ °C D State: D LEVEL IV 10.. Q.i oS c: "t:; lJ"" co ~ c..curB Cl C1 e: {;YN D Other: D NELAC .... On Ice: ~(U , '-.l « :J .... -3: I-::I~<IQ) 5 z a. aro "ll w "E Custody Seal W !ij >1 W (\] ~-) ..i. en "0 On Cooler N en e:
~ 3 H Intact Y N en SAMPLE IDENTIFICATION Collection Collection MATRIX 0 Slgn.ture () N {Name, Location, Interval, etc.} Date Time Match
1 b~' Df ~4{J~ iW\{-,to I~·b-~(O ~KO~ 5-W I....,..
2 1W~-J.b t>7~ -S-vJ 1-~ I ID·b·~O\O
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rftUllICr ~n:A.w \(:>·7-;>.010 II'JD /f Record Relinquished by (prilfl: OBtalTmII: slgJ\8lure: V Recetve<l by (print): 0s1OlT1me! SlgOOlUj1 / /f MUST be
Signed t<0I:e \lea D)I ..... DOra1l>ry: Ua.leJ '7 011 !Jh 1 'IY\ ':7-6/L---Sample Disposal: Return to Client: Lab Disposal:
I I I
pies suomrtteo to t::nergy LaOOratones, Inc. may
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.
EN:RGY
I ~'\1 Inn/ .. n~r~p "
www.energylab.com
AIII/yfIaI ~SIna ,B2
Helena, MT 877-472-0711 • Billings, MT 800-135-4489 • Casper, WY 888-235-0515
Gillette, WV 816-&86-7175 • Rapid City, SD 888-&72-1225 • College Station, 1X 888-890-2218
ANAL VTICAL SUMMARY REPORT
November 11, 2010
Denison Mines USA Corp
6425 S Hwy 191
Blanding, UT 84511
Workorder No.: C10100654 Quote ID: C2975 -Chloroform Sampling
Project Name: 4th Quarter Chloroform 2010
Energy Laboratories, Inc. received the following 21 samples for Denison Mines USA Corp on 10/15/2010 for analysis.
Sample 10 Client Sample 10 Collect Date Receive Date Matrix Test
C 1 01 00654-001 TW4-5 10/13/10 09:15 10/15/10 Aqueous Chloride
Nitrogen, Nitrate + Nitrite
SW8260B VQCs, Standard List
C1 01 00654-002 TW4-18 10/13/10 09 :28 10/15/10 Aqueous Same As Above
C1 01 00654-003 TW4-10 10/13/10 09 :40 10/15/10 Aqueous Same As Above
C 1 01 00654-004 TW4-21 10/13/10 09:55 10/15/10 Aqueous Same As Above
C1 01 00654-005 TW4-22 10/13/10 10:05 10/15/10 Aqueous Same As Above
C 1 01 00654-006 TW4-6 10/13/10 10:15 10/15/10 Aqueous Same As Above
C1 01 00654-007 TW4-11 10/13/10 10:25 10/15/10 Aqueous Same As Above
C 1 01 00654-008 TW4-7 10/13/10 10:35 10/15/10 Aqueous Same As Above
C 10100654-009 TW4-1 10/14/10 06:28 10/15/10 Aqueous Same As Above
C1 01 00654-01 0 MW-4 10/11/10 13 :05 10/15/10 Aqueous Same As Above
C1 01 00654-011 TW4-19 10/11/10 14:10 10/15/10 Aqueous Same As Above
C1 01 00654-012 TW4-4 10/11/10 13:20 10/15/10 Aqueous Same As Above
C1 01 00654-013 TW4-15 10/11/1012:10 10/15/10 Aqueous Same As Above
C1 01 00654-014 TW4-2 10/14/10 06:45 10/15/10 Aqueous Same As Above
C1 01 00654-015 TW4-20 10/11/10 11 :55 10/15/10 Aqueous Same As Above
C1 01 00654-016 TW4-60 10/14/10 07 :00 10/15/10 Aqueous Same As Above
C1 01 00654-017 TW4-70 10/14/10 06:28 10/15/10 Aqueous Same As Above
C1 01 00654-018 TW4-5R 10/12/10 08:15 10/15/10 Aqueous Same As Above
C10100654-019 TW4-1 R 10/13/10 12:46 10/15/10 Aqueous Same As Above
C 1 01 00654-020 Trip Blank 10/11/10 00:00 10/15/10 Aqueous SW8260B VQCs, Standard List
C1 01 00654-021 Temp Blank 10/14/10 00:00 10/15/10 Aqueous Temperature
This report was prepared by Energy Laboratories, Inc., 2393 Salt Creek Hwy., Casper, WY 82601. Any exceptions
or problems with the analyses are noted in the Laboratory Analytical Report, the QA/QC Summary Report, or the
Case Narrative.
The results as reported relate only to the item(s) submitted for testing.
If you have any questions regarding these test results, please call.
Report Approved By: cS¥~ V uJtJ.~
Reporting Supervisor
Digitally signed by
Stephanie Waldrop
Date: 2010.11.11 15:31 :30 -07:00
Page 1 of 32
www.energylab.com
AuIyIIaI~smc. 1m
Helena, MT 877-412-0111 • Billings, MT 801-135-4489 • Casper, WY 888-235-0515
CLIENT: Denison Mines USA Corp
Project: 4th Quarter Chloroform 2010 Report Date: 11 III 11 0
Sample Delivery Group: C10100654 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 ND (not detected), the sample meets EPA compliance criteria for
PCB monitoring.
SUBCONTRACTING ANALYSIS
Subcontracting of sample analyses to an outside laboratory may be required. If so, ENERGY LABORATORIES will utilize its
branch laboratories or qualified contract laboratories for this service. Any such laboratories will be indicated within the
Laboratory Analytical Report.
BRANCH LABORATORY LOCATIONS
eli-b -Energy Laboratories, Inc. -Billings, MT
eli-g -Energy Laboratories, Inc. -Gillette, WY
eli-h -Energy Laboratories, Inc. -Helena, MT
eli-r -Energy Laboratories, Inc. -Rapid City, SD
eli-t -Energy Laboratories, Inc. -College Station, TX
CERTIFICATIONS:
USEPA: WY00002, Radiochemical WY00937; FL-DOH NELAC: E87641, Radiochemical E871 017; California: 02118CA;
Oregon: WY200001; Utah: 3072350515; Virginia: 00057; Washington: C1903
ISO 17025 DISCLAIMER:
The results of this Analytical Report relate only to the items submitted for analysiS.
ENERGY LABORATORIES, INC. -CASPER,WY certifies that certain method selections contained in this report meet
requirements as set forth by the above accrediting authorities. Some results requested by the client may not be covered
under these certifications. All analysiS data to be submitted for regulatory enforcement should be certified in the sample
state of origin. Please verify ELI's certification coverage by visiting www.energylab.com
ELI appreciates the opportunity to provide you with this analytical service. For additional information and services visit our
web page www.energylab.com.
Page 2 of 32
EI\ERGY
1 /,,, r~/'rC.,~I -..J
www.energylab.com
MI/yII&II~C.stllU ll1!2
Helena, MT 877-412-0711 • Billings, MTBOD-735-4489 • Casper, WY 888-235-0515
Gillette, WY 8&8-&86-1115 • Rapid City, SD 888-&72-1225 • College Station, TX 888-&90-2218
QA/Qe Summary Report
Client: Denison Mines USA Corp Report Date: 11/11/10
Project: 4th Quarter Chloroform 2010 Work Order: C10100654
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimlt Qual
Method: A4500-CI B Batch: 101 026-CL-TTR-W
Sample 10: MBLK9-101026 Method Blank Run: TITRATION_101026A 10/26/1 0 10:43
Chloride ND mg/L 0.5
Sample 10: C10100654-002AMS Sample Matrix Spike Run: TITRATION_101026A 1 0/26/1 0 11 :06
Chloride 225 mg/L 1.0 99 90 110
Sample 10: C10100654-002AMSO Sample Matrix Spike Duplicate Run: TITRATION_101 026A 10/26/10 11 :07
Chloride 227 mg/L 1.0 100 90 110 O.B 10
Sample 10: C10100654-012AMS Sample Matrix Spike Run: TITRATION_101026A 10/26/1 0 11 :28
Chloride 215 mg/L 1.0 100 90 110
Sample 10: C10100654-012AMSO Sample Matrix Spike Duplicate Run: TITRATION_101026A 1 0/26/1 0 11 :32
Chloride 217 mg/L 1.0 101 90 110 O.B 10
Sample 10: LCS35-101026 Laboratory Control Sample Run: TITRATION_101026A 10/26/1 0 11 :34
Chloride 3550 mg/L 1.0 100 90 110
Method: A4500-CI B Batch: 101102-CL-TTR-W
Sample 10: MBLK9-101102 Method Blank Run: TITRATION_1011 02A 11/02/1010:13
Chloride ND mg/L 0.5
Sample 10: C10100654-011A Sample Matrix Spike Run : TITRATlON_101102A 11/02/10 10:27
Chloride 320 mg/L 1.0 98 90 110
Sample 10: C10100654-011A Sample Matrix Spike Duplicate Run : TITRATION_101102A 11/02110 10:29
Chloride 322 mg/L 1.0 99 90 110 0.5 10
Sample 10: LCS35-101102 Laboratory Control Sample Run: TITRATION_1 011 02A 11/02/10 10:30
Chloride 3550 mg/L 1.0 100 90 110
Qualifiers:
RL -Analyte reporting limit. ND -Not detected at the reporting limit.
Page 24 of 32
EN:RGY
L I ·~-)ni\rC .... £..:.5
-rm-www.energylab.com f
AMIft/I;II ~ SInu '152
Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, 'NY 888-235-0515
Gillette, WY 88&-688-7175 . Rapid City, sU8B-672-1225 • College Station, TX 8B8-&90-2218
QA/QC Summary Report
Client: Denison Mines USA Corp Report Date: 11/11/10
Project: 4th Quarter Chloroform 2010 Work Order: C10100654
Analyte Count Result Units RL %REC Low Limit High LImit RPO RPOLlmlt Qual
Method: E353.2 Batch: R139031
Sample 10: MBLK-1 Method Blank Run: TECHNICON_1 01 026A 10/26/10 12:28
Nitrogen, Nltrate+Nitrite as N NO mg/L 0.04
Sample 10: LCS-2 Laboratory Control Sample Run: TECHNICON_1 01 026A 10/26/1012:31
Nitrogen, Nitrate+Nitrite as N 2.42 mg/L 0.10 97 90 110
Sample 10: C10100654-016BMS Sample Matrix Spike Run: TECHNICON_1 01 026A 10/26/1014:29
Nitrogen, Nitrate+Nitrite as N 2.00 mg/L 0.10 100 90 110
Sample 10: C10100654-016BMSO Sample Matrix Spike Duplicate Run: TECHNICON_1 01 026A 10/26/1014:31
Nitrogen, Nitrate+Nitrite as N 1.97 mg/L 0.10 99 90 110 1.5 10
Method: E353.2 Batch: R139419
Sample 10: MBLK-1 Method Blank Run: TECHNICON_101103A 11/03/10 11 :58
Nitrogen, Nitrate+Nitrite as N NO mg/L 0.04
Sample 10: LCS-2 Laboratory Control Sample Run: TECHNICON_101103A 11/03/1012:01
Nitrogen, Nitrate+Nitrite as N 2.40 mg/L 0.10 96 90 110
Sample 10: C10100706-0060MS Sample Matrix Spike Run: TECHNICON_1 011 03A 11/03/10 12:53
Nitrogen, Nitrate+Nitrite as N 2.03 mg/L 0.10 101 90 110
Sample 10: C10100706-0060MSO Sample Matrix Spike Duplicate Run: TECHNICON_1 011 03A 11/03/10 12:56
Nitrogen, Nitrate+Nitrite as N 2.02 mg/L 0.10 101 90 110 0.5 10
Qualifiers:
RL -Analyte reporting limit. NO -Not detected at the reporting limit.
Page 25 of 32
EN:RGY
1_ \t· ,I I' 1/ ___ t .
www.energylab.com
MIITtIaI~stuu 1m
Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Caspar, WY 888-235-0515
Gillette, WY 8&&-188-7175 • Rapid City, SD 888-&72-1225 . College Slatlon, TX 888-690-2218
QA/Qe Summary Report
Client: Denison Mines USA Corp Report Date: 11/11110
Project: 4th Quarter Chloroform 2010 Work Order: C10100654
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLlmlt Qual
Method: SW8260B Balch: R138B48
Sample 10: 102110_LCS_4 8 Laboratory Control Sample Run: SATURNCA_101021B 10/21/10 13:21
Carbon tetrachloride 11 ug/L 1.0 112 70 130
Chloroform 11 ug/L 1.0 113 70 130
Chloromethane 11 ug/L 1.0 10B 70 130
Methylene chloride 10 ug/L 1.0 103 70 130
Surr: 1,2-Dichlorobenzene-d4 1.0 112 80 120
Surr: Dibromofluoromethane 1.0 121 70 130
Surr: p-Bromofluorobenzene 1.0 119 80 130
Surr: Toluene-d8 1.0 103 80 120
Sample 10: 102110_MBLK_6 8 Method Blank Run: SATURNCA_1 01 021 B 10/21/1014:34
Carbon tetrachloride NO ug/L 1.0
Chloroform NO ug/L 1.0
Chloromethane NO ug/L 1.0
Methylene chloride NO ug/L 1.0
Surr: 1,2-0ichlorobenzene-d4 1.0 102 80 120
Surr: Dibromofluoromethane 1.0 112 70 130
Surr: p-8romofluorobenzene 1.0 101 80 120
Surr: Toluene-d8 1.0 102 80 120
Sample 10: C10100586-007AMS 6 Sample Matrix Spike Run: SATURNCA_1 01 021 B 10/22/10 08 :04
Carbon tetrachloride 110 ug/L 10 109 70 130
Chloroform 250 ug/L 10 252 70 130 S
Surr: 1,2-Dichlorobenzene-d4 1.0 114 80 120
Surr: Oibromofluoromethane 1.0 116 70 130
Surr: p-Bromofluorobenzene 1.0 110 80 120
Surr: Toluene-dB 1.0 100 80 120
Sample 10: C10100586-007AMSO 6 Sample Matrix Spike Duplicate Run: SATURNCA_1010218 10/22/10 08:40
Carbon tetrachloride 110 ug/L 10 107 70 130 2.2 20
Chloroform 150 ug/L 10 153 70 130 49 20 SR
Surr: 1,2-0ichlorobenzene-d4 1.0 113 80 120 0 10
Surr: Oibromofluoromethane 1.0 119 70 130 0 10
Surr: p-Bromofluorobenzene 1.0 110 80 120 0 10
Surr: Toluene-d8 1.0 99 80 120 0 10
Qualifiers:
RL -Analyte reporting limit. NO -Not detected at the reporting limit.
R -RPO exceeds advisory limit. S -Spike recovery outside of advisory limits.
Page 26 of 32
EN:RGY
I ,.', .... LI/?, .. T(,",'lt!....:
www.energylab.CDm
Anllytful EXlfilM~ SItJc. 1152
Helena, MT 877-472-0711 • Billings, MT BOo-735-4489 • Casper, WY 888-235-0515
Gillette, WY 81&-&86-7175 • Rapid City, SO 888-&72-1225 • CDllage Station, 1X 888-690-2218
QA/QC Summary Report
Client: Denison Mines USA Corp Report Date: 11/11/10
Project: 4th Quarter Chloroform 2010 Work Order: Cl0100654
Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLlmlt Qual
Method: SW8260B Batch: R13B950
Sample ID: 22-0ct-10_LCS_ 4 8 Laboratory Control Sample Run: GCMS2_101022A 10/22/1009:02
Carbon tetrachloride 10 uglL 1.0 104 70 130
Chloroform 9.5 ug/L 1.0 95 70 130
Chloromethane 10.0 ug/L 1.0 100 70 130
Methylene chloride 9.3 ug/L 1.0 93 70 130
Surr: 1,2-Dichlorobenzene-d4 1.0 103 80 120
Surr: Dibromofluoromethane 1.0 91 70 130
Surr: p-Bromofluorobenzene 1.0 104 80 130
Surr: Toluene-d8 1.0 10B 80 120
Sample ID: 22-0ct-10_MBLK_6 8 Method Blank Run: GCMS2_1 01 022A 10/22/10 10:13
Carbon tetrachloride NO ug/L 1.0
Chloroform NO ug/L 1.0
Chloromethane NO uglL 1.0
Methylene chloride NO ug/L 1.0
Surr: 1,2-Dichlorobenzene-d4 1.0 106 80 120
Surr: Dibromotfuoromethane 1.0 95 70 130
Surr: p-Bromotfuorobenzene 1.0 110 80 120
Surr: Toluene-d8 1.0 10B 80 120
Sample ID: C10100654-014CMS 8 Sample Matrix Spike Run: GCMS2_101022A 10/2211017:51
Carbon tetrachloride 1300 ug/L 100 128 70 130
Chloroform 4600 ug/L 100 157 70 130 S
Chloromethane 1100 uglL 100 113 70 130
Methylene chloride 1100 ug/L 100 115 70 130
Surr: 1,2-Dichlorobenzene-d4 1.0 110 80 120
Surr: Dibromofluoromethane 1.0 112 70 130
Surr: p-Bromofluorobenzene 1.0 106 80 120
Surr: Toluene-d8 1.0 112 80 120
Sample ID: C10100654-014CMSD 8 Sample Matrix Spike Duplicate Run : GCMS2_101022A 1 0/22/1 0 18 :26
Carbon tetrachloride 1200 uglL 100 123 70 130 4.1 20
Chloroform 4300 ug/L 100 129 70 130 6.3 20
Chloromethane 1100 ug/L 100 114 70 130 0.7 20
Methylene chloride 1100 ug/L 100 110 70 130 4.6 20
Surr: 1,2-Dichlorobenzene-d4 1.0 107 80 120 0 10
Surr: Dibromotfuoromethane 1.0 106 70 130 0 10
Surr: p-Bromofluorobenzene 1.0 105 80 120 0 10
Surr: Toluene-d8 1.0 112 80 120 0 10
Qualifiers:
RL -Analyte reporting limit. NO -Not detected at the reporting limit.
S -Spike recovery outside of advisory limits.
Page 27 of 32
EN:RGY
L /I,llon ,\'0i:nr:s
www.energylab.com
All.r/JtlaI~SiIru 1m Helena, MT 871-472-0711 • Billings, MT 800-735-4489 • Caspar, WY 888-235-0515
Gillette, WY 88&.886-7175 • Rapid City, SD 888-&72-1225 . College Station, TX 888-690-2218
QA/QC Summary Report
Client: Denison Mines USA Corp Report Date: 11/11/10
Project: 4th Quarter Chloroform 2010 Work Order: C10100654
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLlmlt Qual
Method: SW8260B Batch: R138995
Sample 10: 25-0ct-10_MBLK_7 e Method Blank Run: GCMS2_101025B 10/25/10 14:20
Carbon tetrachloride NO ug/L 1.0
Chloroform NO ug/L 1.0
Chloromethane NO ug/L 1.0
Methylene chloride NO ug/L 1.0
Surr: 1,2-Dichlorobenzene-d4 1.0 105 80 120
Surr: Dibromofluoromethane 1.0 100 70 130
Surr: p-Bromofluorobenzene 1.0 107 80 120
Surr: Toluene-dB 1.0 106 80 120
Sample 10: C10100653-0030MS 8 Sample Matrix Spike Run: GCMS2_101025B 10/25/1022:37
Carbon tetrachloride 69 ug/L 5.0 137 70 130 S
Chloroform 120 ug/L 5.0 236 70 130 S
Chloromethane 55 ug/L 5.0 109 70 130
Methylene chloride 57 ug/L 5.0 114 70 130
Surr: 1,2-Dichlorobenzene-d4 1.0 109 80 120
Surr: Dibromofluoromethane 1.0 109 70 130
Surr: p-Bromofluorobenzene 1.0 104 80 120
Surr: Toluene-d8 1.0 116 80 120
Sample 10: C10100653-0030MSO 8 Sample Matrix Spike Duplicate Run: GCMS2_101025B 10/25/1023:13
Carbon tetrachloride 68 ug/L 5.0 135 70 130 1.5 20 S
Chloroform 120 ug/L 5.0 239 70 130 1.3 20 S
Chloromethane 58 ug/L 5.0 116 70 130 5.7 20
Methylene chloride 56 ug/L 5.0 112 70 130 1.4 20
Surr: 1,2-Dichlorobenzene-d4 1.0 107 80 120 0 10
Surr: Dibromofluoromethane 1.0 110 70 130 0 10
Surr: p-Bromofluorobenzene 1.0 104 80 120 0 10
Surr: Toluene-d8 1.0 112 80 120 0 10
Sample 10: 25-0ct-10_LCS_4 B Laboratory Control Sample Run: GCMS2_101025B 10/25/10 12:21
Carbon tetrachloride 10 ug/L 1.0 104 70 130
Chloroform 10 ug/L 1.0 101 70 130
Chloromethane 9.B ug/L 1.0 98 70 130
Methylene chloride 9.9 ug/L 1.0 99 70 130
Surr: 1,2-Dichlorobenzene-d4 1.0 106 80 120
Surr: Oibromofluoromethane 1.0 98 70 130
Surr: p-Bromofluorobenzene 1.0 104 80 130
Surr: Toluene-d8 1.0 110 80 120
Qualifiers:
RL -Analyte reporting limit. NO -Not detected at the reporting limit.
S -Spike recovery outside of advisory limits.
Page 28 of 32
EI\ERGY
LI\H:....>Hf .. rCnl[ "..J
www.energylab.com
AtIIIytIaI EJlAIIwIcI SIIra 1m
Helena, MT 871-412-0711 • Billings, MT 8OD-13~-4489 • Casper, WY 888-235-0515
GiIIBtte, WY 816-&88-7175 • Rapid City, S(J 888-&12-1225 • College Station, TX 888-690-2218
QA/QC Summary Report
Client: Denison Mines USA Corp
Project: 4th Quarter Chloroform 2010
Analyte
Method: SW8260B
Sample 10: 26-0ct-10_LCS_ 4
Chloroform
Surr: 1,2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Sample 10: 26-0ct-10_MBLK_6
Chloroform
Surr: 1,2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Qualifiers:
RL -Analyte reporting limit.
Count Result Units
5 Laboratory Control Sample
12 ug/L
5 Method Blank
ND ug/L
Report Date: 11/11/10
Work Order: C 10100654
RL %REC Low Limit High Limit RPO RPOLlmlt Qual
Run: GCMS2_101026A
1.0 116 70 130
1.0 106 80 120
1.0 105 70 130
1.0 112 80 130
1.0 108 80 120
Run: GCMS2_101026A
1.0
1.0 106 80 120
1.0 98 70 130
1.0 116 80 120
1.0 106 80 120
ND -Not detected at the reporting limit.
Batch: R139068
10/26/10 11 :57
1 0/26/1 0 13 :08
Page 29 of 32
EN:RGY
1\ ~(>H ... '\ If ;J.lI' oJ
www.energylab.com
AH/JfIaI~" 1151
Helena, MY 817·472-0711 • Billings, MY 800·735·4489 • Casper, WY 888-235·0515
Gillette, WY 868·&86-7175 • Rapid City, SD 888·&72·1225 • College Station,"IX 888-690·2218
Workorder Receipt Checklist
Denison Mines USA Corp
I11111111111 illll~11 ~IIIIIIIIII~ ~III ~IIIIIIIIIII
C10100654
Login completed by: Edith McPike
Reviewed by: BL2000\kschroeder
Reviewed Date: 10/18/2010
Shipping container/cooler in good condition?
Custody seals intact on shipping container/cooler?
Custody seals intact on sample bottles?
Chain of custody present?
Chain of custody signed when relinquished and received?
Chain of custody agrees with sample labels?
Samples in proper container/bottle?
Sample containers intact?
Sufficient sample volume for indicated test?
All samples received within holding time?
ContainerlTemp Blank temperature:
Water· VOA vials have zero headspace?
Water -pH acceptable upon receipt?
Contact and Corrective Action Comments:
None
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
3°C On Ice
Yes 0
Yes 0
Date Received: 10/15/2010
Received by: ha
No 0
No 0
No 0
No 0
No 0
NoO
No 0
No 0
No 0
No 0
No 0
No 0
Carrier name: FedEx
Not Present 0
Not Present 0
Not Present 0
No VOA vials submitted 0
Not Applicable 0
Page 30 of 32
/lHt,ey Chain of Custody and Analytical Request Record Page \ of ~ '_WIII.UYI,
Company Name: De.(\·\~..... M :t\CSo
Report Mail Address: 'PO BO)( gOC\
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Special Report/Formats:
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Format. ____ _ o LEVEL IV o NELAC
PLEASE PRINT (Provide as much Information as PossibleJ ----
Project Name, PWS, Permit, Etc. I Sample Origin
\-{i'h ~~r-\-~ Ghlo1'~ ;to 10 State: ~.,... EPNState Compliance:
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for charges and
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(Name, Location, Interval, etc.)
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CO ~ Custody ~ Record ~~~~~ __ ~~~U£nL~~~~~~
~ MUSTbe~------------------------------~=m~~~~~~~~--~~~-----4 N S· ed a ra8ure: Igo Sample Disposal: Return to Client: Lab Disposal: 7 ,'/ r
In certain circumstances. samples submitted to Energy Laboratories, Inc. may be subcontracted to other certified faboratories 'o~d& 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.
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Chain of Custody and Analytical Request Record Page~of~ L A BOf?A TORICS . -.. --......... -.. _ ... _---... __ .. , .... _ ... ,_ ... _ .. --~~--.-.... ,
Company Name: Project Name, PWS, Permit, Etc. Sample Origin EPNState Compliance:
DGO'ljOn M:o~ 4Th ~r c.\' \oro.\o","" 2010 State: lXT'" Yes 5J No 0
Report Mail Address: PO B())( 'is'D'\, Contact Name: Phone/Fa~: Email: Sampler: (Please Print)
I3\o.nJ.\"o. \).T ~11f:,1l R~ Polrna-y:3fl fo78 ~\ ~nnc.r ~lIn:~~
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h-':l.IInt'!r' "'",II:.L. 1O-14-:l.D1i'I \1:31.'\ -l ... ".,.. J.I. . .¥I. './ • .-4 Record Rellnqulst.ed by (print, Oatef1ime: SignatureV' Received by (prort): OaleITime: signature:
MUST be I • H~'f~~er~ry: USI'" Im'1f.J II r-fA (\ J ~ »IgnalUfe: Signed Sample Disposal: Return to Client: Lab Disposal: ....... ~" -X .~' / -II J //(J '/,<'/.J
pies suDmm:ea to ~nergy LaDoratones, Inc. may De SUDContracteo to orner certlnea laooratones In oraer to comp'ete me analy
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.
Tab I
Quality Assurance and Data Validation Tables
I-I : Field QAIQC Evaluation
2x Casing Volume 2x Casing Volume Volume
Location Volume Pumped Volume Pumped Check Conductivity RPD pH RPD Teml! RPD Redox Potential RPD Turbidity RPD
Continuously
MW-4 NA pumped well -1985 1980 0.25 6.83 6.84 0.15 15.41 15.43 0.13 347 350 0.86 0.0 0.0 0.00
TW4-1 60.58 70.00 61 70 OK 2162 2173 0.51 6.08 6.09 0.16 14.9 14.89 0.07 305 302 0.99 8.4 8.6 2.35
TW4-2 68.08 64 .00 68 64 Insufficient 2842 3137 9.87 6.59 6.57 0.30 14.92 14.91 0.07 248 245 1.22 50.3 48.3 4.06
TW4-3 62.80 90.00 63 90 OK 1712 1718 0.35 6.63 6.65 0.30 14.61 14.63 0.14 491 492 0.20 12.3 12.7 3.20
Continuously
TW4-4 NA pumped well --2503 2469 1.37 6.64 6.59 0.76 14.91 14.88 0.20 342 337 1.47 2.6 2.5 3.92
TW4-5 82.72 90.00 83 90 OK 1762 1750 0.68 6.76 6.77 0.15 15.09 15 .07 0.13 451 451 0.00 30.1 29.2 3.04
TW4-6 31.84 40.00 32 40 OK 3573 3542 0.87 7.04 7.04 0.00 15.06 15 .03 0.20 406 405 0.25 86.3 294.1 109.25
TW4-7 67.96 62.00 68 62 Insufficient 1660 1682 1.32 6.97 6.98 0.14 14.82 14.82 0.00 316 318 0.63 26.6 67.2 86.57
TW4-8 75.52 80.00 76 80 OK 3320 3311 0.27 6.90 6.90 0.00 14.90 14.91 0.07 296 295 0.34 34.0 33.6 1.18
TW4-9 84.98 90.00 85 90 OK 2505 2509 0.16 6.53 6.53 0.00 14.9 14.9 0.00 444 444 0.00 104.9 113.1 7.52
TW4-10 73.26 63 .00 73 63 In sufficient 2615 2682 2.53 5.81 5.87 1.03 14.93 14.89 0.27 448 448 0.00 19.3 20.2 4.56
TW4-11 54.80 70.00 55 70 OK 1692 1687 0.30 6.88 6.85 0.44 14.54 14.51 0.21 398 398 0.00 6.9 7.4 6.99
TW4-12 82.12 90.00 82 90 OK 956.2 959.6 0.35 6.92 6.93 0.14 14.63 14.64 0.07 491 490 0.20 4.3 4.5 4.55
TW4-13 72.62 90.00 73 90 OK 1528 1546 1.17 6.91 6.96 0.72 14.99 14.99 0.00 470 469 0.21 21.9 21.7 0.92
TW4-14 5.98 9.00 6 9 OK 4830 4861 0.64 7.06 6.96 1.43 17.98 15.71 13.48 407 423 3.86 23.6 13.2 56.52
Continuously
TW4-15 NA pumped well -3544 3545 0.03 6.6 6.6 0.00 15.72 15 .69 0.19 343 343 0.00 0.00 0.00 0.00
TW4-16 102.28 110.00 102 110 OK 3690 3684 0.16 6.57 6.57 0.00 14.73 14.72 0.07 428 427 0.23 128.3 123.4 3.89
TW4-17 69.62 70.52 70 71 OK 4038 4038 0.00 6.32 6.31 0.16 14.38 14.41 0.21 188 187 0.53 9.2 9.3 1.08
TW4-18 103.52 110.00 104 110 OK 1420 1416 0.28 6.64 6.64 0.00 15.18 15.18 0.00 438 438 0.00 311.4 300.1 3.70
Continuously
TW4-19 NA pumped well --2977 3041 2.13 6.69 6.66 0.45 15.32 15.31 0.07 397 395 0.51 0.6 0.5 18.18
Continuously
TW4-20 NA pumped well --4436 4427 0.20 6.08 6.07 0.16 18.2 18.17 0.16 390 387 0.77 0.00 0.00 0.00
TW4-21 74.20 80.00 74 80 OK 3227 3235 0.25 6.86 6.86 0.00 16.08 16.07 0.06 446 446 0.00 5.1 4.9 4.00
TW4-22 77 .38 80.00 77 80 OK 5389 5334 1.03 6.68 6.69 0.15 15.45 15.44 0.06 424 424 0.00 15.6 15.4 1.29
TW4-23 62.76 70 .00 63 70 OK 3710 3706 0.11 6.32 6.32 0.00 14.44 14.43 0.07 383 383 0.00 42.1 43 2.12
TW4-24 74.14 80.00 74 80 OK 9023 9013 0.11 6.54 6.55 0.15 15.11 15.10 0.07 461 461 0.00 1.1 1.2 8.70
TW4-25 115.44 120.00 115 120 OK 2947 2929 0.61 6.99 7.00 0.14 15.21 15.20 0.07 378 379 0.26 137.2 144.1 4.91
TW4-26 27.9 32 28 32 OK 6331 6332 0.02 4.03 4.38 8.32 15.11 14.97 0.93 414 418 0.96 38.3 141.8 114.94
MW-4, TW4-4, TW4-15, TW4-19, and TW4-20 are continually pumped wells.
TW4-2, TW4-6, TW4-7, TW4-10, TW4-14, and TW4-26 were pumped dry and sampled after recovery.
1-2: Holding Time Evaluation
Holding Time
Location Constituent Holding Time Allowed Holding Time Check
MW-4 Chloroform 11.00 days 14 days OK
MW-4 Chloromethane 11.00 days 14 days OK
MW-4 Methylene chloride 11.00 days 14 days OK
MW-4 Carbon Tetrachloride 11.00 days 14 days OK
MW-4 Nitrogen 15.00 days 28 days OK
MW-4 Chloride 15.00 days 28 days OK
TW4-1 Chloroform 8.00 days 14 days OK
TW4-1 Chloromethane 9.00 days 14 days OK
TW4-J Methylene chloride 9.00 days 14 days OK
TW4-1 Carbon Tetrachloride 9.00 days 14 days OK
TW4-J Nitrogen 12.00 days 28 days OK
TW4-1 Chloride 12.00 days 28 days OK
TW4-2 Chloroform 8.00 days 14 days OK
TW4-2 Chloromethane 9.00 da~ 14 days OK
TW4-2 Methylene chloride 9.00 days 14 days OK
TW4-2 Carbon Tetrachloride 9.00 days 14 days OK
TW4-2 Nitrogen 12.00 days 28 days OK
TW4-2 Chloride 12.00 days 28 days OK
TW4-3 Chloroform 9.00 days 14 days OK
TW4-3 Chloromethane 9.00 days 14 days OK
TW4-3 Methylene chloride 9.00 days 14 days OK
TW4-3 Carbon Tetrachloride 9.00 days 14 day_s OK
TW4-3 Nitrogen 16.00 days 28 days OK
TW4-3 Chloride 15.00 days 28 days OK
TW4-4 Chloroform 11.00 days 14 days OK
TW4-4 Chloromethane 11.00 days 14 days OK
TW4-4 Methylene chloride 11.00 days 14 days OK
TW4-4 Carbon Tetrachloride 11.00 days 14 days OK
TW4-4 Nitrogen 15.00 days 28 days OK
TW4-4 Chloride 15.00 days 28 days OK
TW4-5 Chloroform 9.00 days 14 days OK
TW4-5 Chloromethane 9.00 days 14 days OK
TW4-5 Methylene chloride 9.00 days 14 days OK
TW4-5 Carbon Tetrachloride 9.00 days 14 days OK
TW4-5 Nitrogen 13.00 days 28 days OK
TW4-5 Chloride 13.00 days 28 days OK
TW4-6 Chloroform 9.00 days 14 days OK
TW4-6 Chloromethane 10.00 days 14 days OK
TW4-6 Methylene chloride 10.00 days 14 days OK
TW4-6 Carbon Tetrachloride 10.00 days 14 days OK
TW4-6 Nitrogen 13.00 days 28 days OK
TW4-6 Chloride 13.00 days 28 days OK
TW4-7 Chloroform 9.00 days 14 days OK
TW4-7 Chloromethane 10.00 days 14 days OK
TW4-7 Methylene chloride 10.00 days 14 days OK
TW4-7 Carbon Tetrachloride 10.00 days 14 days OK
TW4-7 Nitrogen 13.00 days 28 days OK
1-2: Holding Time Evaluation
Holding Time
Location Constituent Holding Time Allowed Holding Time Check
TW4-7 Chloride 13.00 days 28 days OK
TW4-8 Chloroform 13.00 days 14 days OK
TW4-8 Chloromethane 13.00 days 14 days OK
TW4-8 Methylene chloride 13.00 days 14 dllys OK
TW4-8 Carbon Tetrachloride 13.00 days 14 days OK
TW4-8 Nitrogen 16.00 days 28 days OK
TW4-8 Chloride 15.00 days 28 days OK
TW4-9 Chloroform 12.00 days 14 days OK
TW4-9 Chloromethane 12.00 days 14 days OK
TW4-9 Methylene chloride 12.00 days 14 days OK
TW4-9 Carbon Tetrachloride 12.00 days 14 days OK
TW4-9 Nitrogen 15.00 days 28 days OK
TW4-9 Chloride 14.00 days 28 days OK
TW4-10 Chloroform 12.00 days 14 days OK
TW4-10 Chloromethane 12.00 days 14 days OK
TW4-I0 Methylene chloride 12.00 days 14 days OK
TW4-10 Carbon Tetrachloride 12.00 days 14 days OK
TW4-I0 Nitrogen 21.00 days 28 days OK
TW4-10 Chloride 20.00 days 28 days OK
TW4-ll Chloroform 9.00 days 14 days OK
TW4-l1 Chloromethane 10.00 days 14 days OK
TW4-ll Methylene chloride 10.00 days 14 days OK
TW4-l1 Carbon Tetrachloride 10.00 days 14 days OK
TW4-ll Nitrogen 13.00 days 28 days OK
TW4-l1 Chloride 13.00 days 28 days OK
TW4-12 Chloroform 9.00 days 14 days OK
TW4-12 Chloromethane 9.00 days 14 daYJ> OK
TW4-12 Methylene chloride 9.00 days 14 days OK
TW4-12 Carbon Tetrachloride 9.00 days 14 days OK
TW4-12 Nitrogen 16.00 days 28 days OK
TW4-12 Chloride 15.00 days 28 days OK
TW4-13 Chloroform 9.00 days 14 days OK
TW4-13 Chloromethane 9.00 days 14 days OK
TW4-13 Methylene chloride 9.00 days 14 days OK
TW4-13 Carbon Tetrachloride 9.00 days 14 days OK
TW4-13 Nitrogen 16.00 days 28 days OK
TW4-13 Chloride 15.00 days 28 days OK
TW4-14 Chloroform 8.00 days 14 days OK
TW4-14 Chloromethane 8.00 days 14 days OK
TW4-14 Methylene chloride 8.00 days 14 days OK
TW4-14 Carbon Tetrachloride 8.00 days 14 days OK
TW4-14 Nitrogen 15.00 days 28 days OK
TW4-14 Chloride 14.00 days 28 days OK
TW4-15 Chloroform 11.00 days 14 days OK
TW4-15 Chloromethane 11.00 days 14 days OK
TW4-15 Methylene chloride 11.00 days 14 days OK
TW4-15 Carbon Tetrachloride 11.00 days 14 days OK
TW4-15 Nitrogen 15.00 days 28 days OK
1-2: Holding Time Evaluation
Holding Time
Location Constituent Holding Time Allowed Holding Time Check
TW4-15 Chloride 15.00 days 28 days OK
TW4-16 Chloroform 12.00 days 14 days OK
TW4-16 Chloromethane 12.00 days 14 days OK
TW4-16 Methylene chloride 12.00 days 14 days OK
TW4-16 Carbon Tetrachloride 12.00 days 14 days OK
TW4-l6 Nitrogen 15.00 days 28 days OK
TW4-16 Chloride 21.00 days 28 days OK
TW4-17 Chloroform 8.00 days 14 days OK
TW4-17 Chloromethane 8.00 days 14 days OK
TW4-17 Methylene chloride 8.00 days 14 days OK
TW4-l7 Carbon Tetrachloride 8.00 days 14 days OK
TW4-17 Nitrogen 15.00 days 28 days OK
TW4-17 Chloride 14.00 days 28 days OK
TW4-18 Chloroform 9.00 days 14 days OK
TW4-18 Chloromethane 9.00 days 14 days OK
TW4-18 Methylene chloride 9.00 days 14 days OK
TW4-18 Carbon Tetrachloride 9.00 days 14 days OK
TW4-18 Nitrogen 13.00 days 28 days OK
TW4-18 Chloride 20.00 days 28 days OK
TW4-l9 Chloroform 11.00 days 14 days OK
TW4-19 Chloromethane 11.00 days 14 days OK
TW4-19 Methylene chloride 11.00 days 14 days OK
TW4-19 Carbon Tetrachloride 11.00 days 14 days OK
TW4-19 Nitrogen 15.00 days 28 days OK
TW4-19 Chloride 22.00 days 28 days OK
TW4-20 Chloroform 11.00 days 14 days OK
TW4-20 Chloromethane 11.00 days 14 days OK
TW4-20 Methylene chloride 11.00 days 14 days OK
TW4-20 Carbon Tetrachloride 11.00 days 14 days OK
TW4-20 Nitrogen 15.00 days 28 days OK
TW4-20 Chloride 15.00 days 28 days OK
TW4-21 Chloroform 12.00 days 14 days OK
TW4-21 Chloromethane 12.00 days 14 days OK
TW4-21 Methylene chloride 12.00 days 14 days OK
TW4-21 Carbon Tetrachloride 12.00 days 14 days OK
TW4-21 Nitrogen 13.00 days 28 days OK
TW4-21 Chloride 13.00 days 28 days OK
TW4-22 Chloroform 9.00 days 14 days OK
TW4-22 Chloromethane 10.00 days 14 days OK
TW4-22 Methylene chloride 10.00 days 14 days OK
TW4-22 Carbon Tetrachloride 10.00 days 14 days OK
TW4-22 Nitrogen 13.00 days 28 days OK
TW4-22 Chloride 13.00 daYJ 28 days OK
TW4-23 Chloroform 9.00 days 14 days OK
TW4-23 Chloromethane 9.00 days 14 days OK
TW4-23 MethyJene chloride 9.00 days 14 days OK
TW4-23 Carbon Tetrachloride 9.00 days 14 days OK
TW4-23 Nitrogen 16.00 days 28 days OK
1-2: Holding Time Evaluation
Holding Time
Location Constituent Holding Time Allowed Holding Time Check
TW4-23 Chloride 15.00 days 28 days OK
TW4-24 Chloroform 12.00 days 14 days OK
TW4-24 Chloromethane 12.00 days 14 days OK
TW4-24 Methylene chloride 12.00 days 14 days OK
TW4-24 Carbon Tetrachloride 12.00 days 14 days OK
TW4-24 Nitrogen 15.00 days 28 days OK
TW4-24 Chloride 14.00 days 28 days OK
TW4-25 Chloroform 13 .00 days 14 days OK
TW4-25 Chloromethane 13.00 days 14 days OK
TW4-25 Methylene chloride 13.00 days 14 days OK
TW4-25 Carbon Tetrachloride 13.00 days 14 days OK
TW4-25 Nitrogen 16.00 days 28 days OK
TW4-25 Chloride 15.00 days 28 days OK
TW4-26 Chloroform 12.00 days 14 days OK
TW4-26 Chloromethane 12.00 days 14 days OK
TW4-26 Methylene chloride 12.00 days 14 days OK
TW4-26 Carbon Tetrachloride 12.00 days 14 days OK
TW4-26 Nitrogen 15.00 days 28 days OK
TW4-26 Chloride 14.00 days 28 days OK
TW4-60 Chloroform 11.00 days 14 days OK
TW4-60 Chloromethane 11.00 days 14 days OK
TW4-60 Methylene chloride 11.00 days 14 days OK
TW4-60 Carbon Tetrachloride 11.00 days 14 days OK
TW4-60 Nitrogen 12.00 days 28 days OK
TW4-60 Chloride 12.00 days 28 days OK
TW4-65 Chloroform 13 .00 days 14 days OK
TW4-65 Chloromethane 13.00 days 14 days OK
TW4-65 Methylene chloride 13.00 days 14 days OK
TW4-65 Carbon Tetrachloride 13.00 days 14 days OK
TW4-65 Nitrogen 15.00 days 28 days OK
TW4-65 Chloride 14.00 days 28 days OK
TW4-70 Chloroform 12.00 days 14 days OK
TW4-70 Chloromethane 11.00 days 14 days OK
TW4-70 Methylene chloride 11.00 days 14 days OK
TW4-70 Carbon Tetrachloride 11.00 days 14 days OK
TW4-70 Nitrogen 12.00 days 28 days OK
TW4-70 Chloride 12.00 days 28 days OK
Table 1-3 Recipt Temperature Check
Sample Batch Wells in Batch Temperature
CIOIOO6S4 MW-4, TW4-1, TW4-IR, TW4-2, TW4-4, TW4-S, TW4-3 °C
SR, TW4-6, TW4-7, TW4-10, TW4-11, TW4-15, TW4-IS,
TW4-19, TW4-20, TW4-21, TW4-22, TW4-60, TW4-70,
Trip Blank
CIOiOO403 TW4-3 TW4-3R, TW4-8, TW4-9, TW4-12, TW4-13, 2°C
T W4-14, TW4-14R TW4-16, TW4-17 TW4-23 TW4-24,
TW4-2S, TW4-26, TW4-65, Trip Blank
l-4 Analytical Method Check
Parameter Method Method Used by Lab
Carbon Tetrachloride SW8260B SW8260B
Chloride A4500-CI B A4500-CI B
Chloroform SW8260B SW8260B
Chloromethane SW8260B SW8260B
Methylene chloride SW8260B SW8260B
Nitrogen £353.2 £353.2
AJI parameters were analyzed llsing the reporting method specificied in the QAP
I-5 Reporting Limit Evaluation
Rqd'
Reporting Qualifier
Location Constituent Lab Reporting Limit Limit Qualifier Check
MW-4 Chloroform 100ug/L 1.0 ug/L D OK
MW-4 Chloromethane 1 ug/'L 1.0ug/L U OK
MW-4 Methylene chloride 1 ug/L 1.0ug/L U OK
MW-4 Carbon Tetrachloride 1 ug/L 1.0ug/L OK
MW-4 Nitrogen 0.5 mg/L 0.1 mg/L D OK
MW-4 Chloride 1 mg/L 1 mg/L OK
TW4-1 Chloroform 100 ug/L 1.0ug/L D OK
TW4-1 Chloromethane 1 ug/L 1.0ug/L U OK
TW4-1 Methylene chloride 1 ug/L 1.0 ug/l U OK
TW4-1 Carbon Tetrachloride 1 ug/L 1.0 ug/L U OK
TW4-1 Nitrogen 0.5 mg/L O.l mg/L D OK
TW4-1 Chloride 1 mg/L 1 mg/L OK
TW4-2 Chloromethane 1 ug/L 1.0ug/L U OK
TW4-2 Methylene chloride 1 ug/L 1.0 ug/L U OK
TW4-2 Carbon Tetrachloride 1 ug/L 1.0ug/L OK
TW4-2 Nitrogen 0.5 mg/L 0.1 mg/L D OK
TW4-2 Chloride 1 mg/L 1 mg/L OK
TW4-3 Chloroform 1 ug/L 1.0ug/L U OK
TW4-3 Chloromethane 1 ug/L 1.0 ug/L U OK
TW4-3 Methylene chloride 1 ug/L 1.0 ug/L U OK
TW4-3 Carbon Tetrachloride lug/L 1.0ug/L U OK
TW4-3 Nitrogen 0.2 mg/L O.l mg/L D OK
TW4-3 Chloride 1 mg/L 1 mg/L OK
TW4-4 Chloroform 100 ug/L 1.0 ugIL D OK
TW4-4 Chloromethane 1 ug/L 1.0 ugIL U OK
TW4-4 Methylene chloride 1 ug/L 1.0 ug/L U OK
TW4-4 Carbon Tetrachloride 1 ug/L 1.0ug/L OK
TW4-4 Nitrogen 0.5 mg/L O.l Il!~ D OK
TW4-4 Chloride 1 mg/L 1 mgIL OK
TW4-5 Chloroform 1 ug/L 1.0 ug/L OK
TW4-5 Chloromethane lug/L 1.0ug/L U OK
TW4-5 Methylene chloride 1 ug/L 1.0ug/L U OK
TW4-5 Carbon Tetrachloride 1 ugLL 1.0ug/L U OK
TW4-5 Nitrogen 0.5 mgIL 0.1 mg/L D OK
TW4-5 Chloride 1 mg/L 1 mg/L OK
TW4-6 Chloroform lOOug/L 1.0ug/L D OK
TW4-6 Chloromethane 1 ug/L l.OugIL U OK
TW4-6 Methylene chloride 1 ugIL 1.0ug/L U OK
TW4-6 Carbon Tetrachloride 1 ugIL 1.0 ug/L U OK
TW4-6 Nitrogen 0.5 mg/L 0.1 mg/L D OK
TW4-6 Chloride 1 mg/L 1 mg/L OK
TW4-7 Chloroform 100 ug/L 1.0ug/L D OK
TW4-7 Chloromethane 1 ug/L 1.0ug/L U OK
TW4-7 Methylene chloride 1 ug/L 1.0ug/L U OK
TW4-7 Carbon Tetrachloride 1 ug/L 1.0 ug/l U OK
TW4-7 Nitrogen 0.2 mg/L 0.1 mgIL D OK
TW4-7 Chloride 1 mg/L 1 mg/L OK
1-5 Reporting Limit Evaluation
Rqd'
Reporting Qualifier
Location Constituent Lab R~_orting Limit Limit Qualifier Check
TW4-8 Chlorofonn lug/L 1.0ug/L U OK
TW4-8 Chloromethane 1 ug/L 1.0ug/L U OK
TW4-8 Methylene chloride 1 ug/L 1.0ug/L U OK
TW4-8 Carbon Tetrachloride 1 ug/L 1.0ug/L U OK
TW4-8 Nitrogen 0.1 mg/L 0.1 mg/L OK
TW4-8 Chloride 1 mg/L 1 mg/L OK
TW4-9 Chloromethane 1 ug/L 1.0ug/L U OK
TW4-9 Methylene chloride 1 ug/L 1.0ug/L U OK
TW4-9 Carbon Tetrachloride 1 ug/L 1.0ug/L U OK
TW4-9 Nitrogen 0.1 mg/L 0.1 mg/L OK
TW4-9 Chloride 1 mg/L 1 mg/L OK
TW4-1O Chlorofonn 100 ug/L 1.0ug/L D OK
TW4-10 Chloromethane 1 ug/L 1.0ug/L U OK
TW4-10 Methylene chloride 1 ug/L 1.0ug/L U OK
TW4-1O Carbon Tetrachloride 1 ug/L 1.0 ug/L U OK
TW4-10 Nitrogen 1 mg/L 0.1 mg/L D OK
TW4-10 Chloride 1 mg/L I mg/L OK
TW4-11 Chlorofonn 100 ug/L 1.0ug/L D OK
TW4-11 Chloromethane 1 ug/L 1.0 ug/L U OK
TW4-11 Methylene chloride I ug/_L 1.0ug/L U OK
TW4-11 Carbon Tetrachloride I ug/L 1.0ug/L U OK
TW4-11 Nitrogen 0.5 mg/L 0.1 mg/L D OK
TW4-11 Chloride I mg/L I mg/L OK
TW4-12 Chlorofonn I ug/L 1.0ug/L U OK
TW4-12 Chloromethane I ug/L 1.0ug/L U OK
TW4-12 Methylene chloride I ug/L 1.0ug/L U OK
TW4-12 Carbon Tetrachloride 1 ug/L 1.0ug/L U OK
TW4-12 Nitrogen 1 mg/L O.lm~ D OK
TW4-12 Chloride 1 mg/L I mg/L OK
TW4-13 Chlorofonn 1 ug/L 1.0ug/L U OK
TW4-13 Chloromethane 1 ug/L 1.0ug/L U OK
TW4-13 Methylene chloride I ug& 1.0ug/L U OK
TW4-13 Carbon Tetrachloride I ug/L 1.0 ug/L U OK
TW4-13 Nitrogen 0.5 mg/L 0.1 mg/L D OK
TW4-13 Chloride 1 mg/L 1 mg/L OK
TW4-14 Chlorofonn I ug/L 1.0 ug/L U OK
TW4-14 Chloromethane I ug/L 1.0uglL U OK
TW4-14 Methylene chloride I ug/L 1.0 ug/L U OK
TW4-14 Carbon Tetrachloride I ug/L 1.0ug/L U OK
TW4-14 Nitrogen 0.2 mg/L 0.1 mg/L D OK
TW4-14 Chloride I mg/L I mg/L OK
TW4-15 Chlorofonn 100 ug/L 1.0ug/L D OK
TW4-15 Chloromethane I ug/L 1.0ug/L U OK
TW4-15 Methylene chloride I ug/L 1.0ug/L OK
TW4-l5 Carbon Tetrachloride I ugi1, 1.0 ug/L U OK
TW4-15 Nitrogen 0.1 mg/L 0.1 mg/L OK
TW4-15 Chloride I mg/L I mg/L OK
TW4-l6 Chlorofonn I ug/L 1.0ug/L OK
1-5 Reporting Limit Evaluation
Rqd'
Reporting Qualifier
Location Constituent Lab Reporting Limit Limit Qualifier Check
TW4-16 Chloromethane 1 ug/L 1.0ug/L U OK
TW4-l6 Methylene chloride 1 ug/L 1.0ug/L U OK
TW4-16 Carbon Tetrachloride 1 ug/L 1.0ug/L U OK
TW4-16 Nitrogen 0.2 mg/L 0.1 mg/L 0 OK
TW4-16 Chloride 1 mg/L 1 mg/L OK
TW4-17 Chloroform 1 ug/L 1.0ug/L U OK
TW4-17 Chloromethane 1 ug/L 1.0 ug/L U OK
TW4-17 Meth~ene chloride I ugjL 1.0 ug/L U OK
TW4-17 Carbon Tetrachloride I ug/L 1.0ugiL U OK
TW4-17 Nitrogen 0.1 mg/L 0.1 mg/L U OK
TW4-17 Chloride 1 mg/L 1 mg/L OK
TW4-1S Chloroform 1 ug/L 1.0 ug/L OK
TW4-1S Chloromethane I ug/L 1.0ugiL U OK
TW4-1S Methylene chloride 1 ug/L 1.0 ug/L U OK
TW4-1S Carbon Tetrachloride 1 ug/L 1.0ug/L U OK
TW4-1S Nitrogen 1 mg/L 0.1 mg/L 0 OK
TW4-1S Chloride 1 mg/L 1 mg/L OK
TW4-19 Chloroform 100 ug/L 1.0ug/L 0 OK
TW4-19 Chloromethane 1 ug/L 1.0ug/L U OK
TW4-19 Methylene chloride 1 \!gLL 1.0ug/L U OK
TW4-19 Carbon Tetrachloride 1 ug/L 1.0ug/L OK
TW4-19 Nitrogen 0.2 mg/L 0.1 mg/L 0 OK
TW4-19 Chloride 1 mg/L 1 mg/L OK
TW4-20 Chloroform 1000 ug/L 1.0ug/L 0 OK
TW4-20 Chloromethane 1 ug/L 1.0ug/L U OK
TW4-20 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-20 Carbon Tetrachloride 1 ug/L 1.0ug/L OK
TW4-20 Nitrogen 0.5 mglL 0.1 mglL 0 OK
TW4-20 Chloride 1 mg/L 1 mg/L OK
TW4-21 Chloroform 100 ug/L 1.0 ug/L 0 OK
TW4-21 Chloromethane 1 ug/L 1.0ug/L U OK
TW4-21 Methylene chloride 1 ugjL 1.0ug/L U OK
TW4-21 Carbon Tetrachloride 1 ug/L 1.0ug/L OK
TW4-21 Nitrogen 0.5 mg/L 0.1 mg/L 0 OK
TW4-21 Chloride 1 mg/L 1 mg/L OK
TW4-22 Chloroform 100 ug/L 1.0ug/L 0 OK
TW4-22 Chloromethane lug/L 1.0ugiL U OK
TW4-22 Methylene chloride lug/L 1.0ug/L U OK
TW4-22 Carbon Tetrachloride 1 ug/L 1.0ug/L U OK
TW4-22 Nitrogen 1 mg/L 0.1 mg/L 0 OK
TW4-22 Chloride 1 mg/L 1 mg/L OK
TW4-23 Chloroform I ug/L 1.0ug/L U OK
TW4-23 Chloromethane 1 ug/L 1.0 ug/L U OK
TW4-23 Methylene chloride 1 ug/L 1.0ug/L U OK
TW4-23 Carbon Tetrachloride 1 ugLL 1.0ug/L U OK
TW4-23 Nitrogen 0.1 mg/L 0.1 mg/L U OK
TW4-23 Chloride 1 mg/L 1 mg/L OK
TW4-24 Chloroform 1 ug/L 1.0ug/L OK
1-5 Reporting Limit Evaluation
Rqd'
Reporting Qualifier
Location Constituent Lab Reporting Limit Limit Qualifier Check
TW4-24 Chloromethane 1 ug/L 1.0 ug/L U OK
TW4-24 Methylene chloride 1 ug/L 1.0ug/L U OK
TW4-24 Carbon Tetrachloride 1 ugIL 1.0ug/L U OK
TW4-24 Nitrogen 2 mg/L 0.1 mg/L D OK
TW4-24 Chloride 1 mg/L 1 mg/L OK
TW4-25 Chloroform 1 ug/L 1.0 ug/L U OK
TW4-25 Chloromethane I ug/L 1.0ug/L U OK
TW4-25 Methylene chloride lug/L 1.0ug/L U OK
TW4-25 Carbon Tetrachloride 1 ug/L 1.0 ug/L U OK
TW4-25 Nitrogen 1 mg/L 0.1 mg/L D OK
TW4-25 Chloride 1 mg/L I mgIL OK
TW4-26 Chloroform 1 ug/L 1.0ugiL OK
TW4-26 Chloromethane 1 ug/L 1.0ug/L U OK
TW4-26 Methylene chloride 1 ug/L 1.0 ug/L U OK
TW4-26 Carbon Tetrachloride 1 ug/L 1.0 ug/L U OK
TW4-26 Nitrogen 0.5 mg/L 0.1 mg/L D OK
TW4-26 Chloride 1 mg/L I mg/L OK
TW4-60 Chloroform 1 uglJ-1.0ug/L U OK
TW4-60 Chloromethane 1 ug/L 1.0ug/L U OK
TW4-60 Methylene chloride 1 ug/L 1.0ug/L U OK
TW4-60 Carbon Tetrachloride 1 ug/L 1.0ug/L U OK
TW4-60 Nitrogen 0.1 mglL 0.1 mglL U OK
TW4-60 Chloride 1 mg/L I mg/L U OK
TW4-65 Chloroform 100 ug/L 1.0ug/L D OK
TW4-65 Chloromethane I ug/L 1.0ug/L U OK
TW4-65 Methylene chloride I ug/L 1.0ug/L OK
TW4-65 Carbon Tetrachloride 1 ug/L 1.0 ug/L U OK
TW4-65 Nitrogen 0.2 mg/L 0.1 mg/L D OK
TW4-65 Chloride 1 mg/L I mg/L OK
TW4-70 Chloroform 100 ug/L 1.0ug/L D OK
TW4-70 Chloromethane I ug/L 1.0ug/L U OK
TW4-70 Methylene chloride I ugIL 1.0ug/L U OK
TW4-70 Carbon Tetrachloride 1 ug/L 1.0ug/L U OK
TW4-70 Nitrogen 0.5 mg/L 0.1 mg/L D OK
TW4-70 Chloride 1 mglL I mgIL OK
1-6 Trip Blank Evaluation
Lab Report Constituent Result
C1OIOO654 Carbon tetracllloride NO ug/L
Chloroform NO uglL
Chloromethane NO uglL
Methylene chloride NO uglL
CI01OO403 Carbon tetrachloride ND ug/L
Chloroform NO ug/L
Ch IOJ'omethane ND ug/L
Methylene chlori,de ND ugiL
£-7 QA/QC Evaluation for Sample Duplicates
Constituent TW4-9 TW4-65 %RPD
Carbon Tetrachloride ND ND NC
Chloride 34 34 0
Chloroform ND ND NC
Chloromethane ND ND NC
Methylene Chloride ND ND NC
Nitrate 1.8 1.8 0
Constituent TW4-1 TW4-70 %RPD
Carbon Tetrachloride ND ND NC
Chloride 40 40 0
Chloroform 1500 740 68
Chloromethane ND ND NC
Methylene Chloride ND ND NC
Nitrate 6.6 6.5 2
ND = Not detected
NC = Not calculated
1-8 QC Control Limits for Analysis and Blanks
Matrix Spike % Recovery Comparison
MS MSD REC
Lab Report Lab Sample ID Well Analyte %REC %REC Range RPD
ClOlO0654 ClO100586-007 Not a Denison Sample Chloroform 252 153 70 -130 49
C10100654 C I 0 1 00654-014 TW4-2 Chloroform 157 129 70 -130 6.3
CI0100654 ClOI00653-003 Not a Denison Sample Carbon Tetrachloride 137 135 70 -130 l.5
CIOlO0654 CIOI00653-003 Not a Denison Sample Chloroform 236 239 70 -130 1.3
CIOI00403 C 1 0 1 00408-00 1 Not a Denison Sample Carbon Tetrachloride 145 133 70 -130 8.3 -
Surrogate % Recovery
Lab
Specified QAP
REC Required
Lab Report WelVSample Analyte Surrogate %REC Range Range
CI0100654 TW4-20 Dibromofluoromethane 140 70 -130 None
1-9 Rinsate Evaluation
Result for
Previous Well Previous Well
Rinsate Sample Parameter Rinsate Result Sampled Sampled
TW4-lR Nitrogen 0.2 mg/L TW4-7 4 mg/L
None -rinsate collected
at the beginning ofthe
TW4-3R Nitrogen 0.1 mg/L program NA mg/L
TW4-14R Nitrogen 0.1 mg/L TW4-8 0.1 mg/L
PrevIOus well sampled IS the well that the pump was used to purge pnor to the nnsate sample.
D = Reporting limit raised due to dilution/sample matrix.
Rinsate
Reporting
Qualifier Limit
D 0.1 mg/L
0.1 mg/L
0.1 mglL
TabJ
Kriged Current Quarter Chloroform Isoconcentration Map
r
0
MW-4
.1500
0 1500
PIEZ-1
Q NS
IWN-1 ~NS
1W4-26 ~5
MW-34
~NS
t"" ~-'\..J
Q-::::-#~ ~r
#' II
II
I' I ~I
II
II
[I
II
II
ll 32
II
II
II
II
[I
II
II
,I
II
PROPERTY
BOUNDARY
II
II
II
II
II
n VI II
II
'l
1 II
((
-...::::
MW-Gl
eND
~~
ONS TWN-7
CELL NO.1
MW-D2 e ND
MW~3 __ MW-34 MY!"~ ~ry -9M) -e N
MW-03 e ND
CELL NO.2
MW-17 e ND
33
MW-18
e ND
ONS
TWN-18
ONS TWN-3
"
ONS
TWN-15
ONS
TWN-l0
ONS
TWN-11
ONS
TWN-14
ONS TWN-9 ONS TWN-6 PIEZ-l
oNS
ONS MW-19 TWN-8 e ND
PIEZ-2 oNS
ONS
N-4
PIEZ-3 oNS
OND
QND ~
ONS TWN-12
f~
PIEZ-4 ..l-.:::::--=--=::;:-=-
"NS /
PIEZ-5
oNS
/ ~ ;:f
T37S
\
\
~ ~
D
(
\
• MW-21
II
II
T38S ~
N
II
\\
~ ~ ~ ~ ~ ~
MW-20 eND
~ ~ ~-----"'~-----"" ..,.====_ 4 1/ ~ ~ --~~~~---, ----=-7/ '-0;..-:;:'-- ---=--- -II
3000
SCALE IN FEET
EXPLANATION
perched monitoring well showing
concentration in uG/1
temporary perched monitoring well
showing concentration in uGIl
perched piezometer (not sampled)
temporary perched nitrate
monitoring well (not sampled)
temporary perched monitoring well installed
May, 2010 showing concentration in uG/1
perched monitoring well installed
August/September, 2010
MW-22 o
1/
#
#
#
#
#
#
#
#
#
#
NOTES: ND = not detected, NS = not samoled
HYDRO
GEO
CHEM, INC.
KRIGED 4th QUARTER, 2010 CHLOROFORM (uG/L)
WHITE MESA SITE
APPROVED DATE REFERENCE FIGURE
SJS H:1718000/feb11/chI1210.srf
'"
TabK
Analyte Concentrations Over Time
Chloroform Carbon Chloromethane Methylene Nitrate Chloride MW-4 Tetrachloride (ug/l) (uWl) (ug/l) Chloride (ug/l) (mg/l) (mg/l)
28-Sep-99 6200
28-Sep-99 5820
28-Sep-99 6020
15-Mar-00 5520
15-Mar-00 5430
2-Sep-00 5420 9.63
30-Nov-00 6470 9.37
29-Mar-Ol 4360 8.77
22-Jun-Ol 6300 9.02
20-Sep-01 5300 9.45
8-Nov-01 5200 8
26-Mar-02 4700 8.19
22-May-02 4300 8.21
12-Sep-02 6000 8.45
24-Nov-02 2500 8.1
28-Mar-03 2000 8.3
30-Apr-03 3300 NA
30-May-03 3400 8.2
23-Jun-03 4300 8.2
30-JuI-03 3600 8.1
29-Aug-03 4100 8.4
12-Sep-03 3500 8.5
15-0ct-03 3800 8.1
8-Nov-03 3800 8
29-Mar-04 NA NA
22-Jun-04 NA NA
17-Sep-04 3300 6.71
17-Nov-04 4300 7.5
16-Mar-05 2900 6.3
25-May-05 3170 NA NA NA 7.1 NA
31-Aug-05 3500 <10 <10 <10 7.0 NA
1-Dec-05 3000 <50 <50 <50 7.0 NA
9-Mar-06 3100 <50 <50 50 6 49
14-Jun-06 3000 <50 <50 50 6 49
20-JuI-06 2820 <50 <50 <50 1.2 48
9-Nov-06 2830 2.1 1.4 <1 6.4 50
28-Feb-07 2300 1.6 <1 <1 6.3 47
27-Jun-07 2000 1.8 <1 <1 7 45
15-Aug-07 2600 1.9 <1 <1 6.2 47
1O-0ct-07 2300 1.7 <1 <1 6.2 45
26-Mar-08 2400 1.7 <1 <1 5.8 42
25-Jun-08 2500 1.6 <1 <1 6.09 42
10-Sep-08 1800 1.8 <1 <1 6.36 35
15-0ct-08 2100 1.7 <1 <1 5.86 45
4-Mar-09 2200 1.5 <1 <1 5.7 37
Chloroform Oarbon Chloromethane Methylene NitJrate Chloride MW:-4 Tetrachloride (ug/l) (u2/1) (ug/l) Chloride (ug/l) (Jng/I) (mg/l)
23-Jun-09 1800 1.3 <1 <I 5.2 34
14-Sep-09 2000 1.4 <1 <1 5.3 43
14-Dec-09 1800 1.6 ND ND 5.8 44
17-Feb-IO 1600 1.2 ND ND 4 45
14-Jun-l0 2100 1.2 ND ND 5.1 41
I 6-Aug-1 0 1900 1.5 ND ND 4.8 38
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-1 (ugll) Tetrachloride (ugll) Chloride (mgll) (mgll) (ugll) (ugll) I'
28-Jun-99 1700 7.2
10-Nov-99 5.8
15-Mar-00 1100
10-Apr-00 1490
6-Jun-00 1530
2-Sep-00 2320 5.58
30-Nov-00 3440 7.79
29-Mar-Ol 2340 7.15
22-Jun-01 6000 8.81
20-Sep-Ol 12.8
8-Nov-Ol 3200 12.4
26-Mar-02 3200 13.1
22-May-02 2800 12.7
12-Sep-02 3300 12.8
24-Nov-02 3500 13.6
28-Mar-03 3000 12.4
23-Jun-03 3600 12.5
12-Sep-03 2700 12.5
8-Nov-03 3400 11.8
29-Mar-04 3200 11
22-Jun-04 3100 8.78
17-Sep-04 2800 10.8
17-Nov-04 3000 11.1
16-Mar-05 2700 9.1
25-May-05 3080 NA NA NA 10.6 NA
31-Aug-05 2900 <10 <10 <10 9.8 NA
I-Dee-OS 2400 <50 <50 <50 9.7 NA
9-Mar-06 2700 <50 <50 <50 9.4 49
14-Jun-06 2200 <50 <50 <50 9.8 48
20-Jul-06 2840 <50 <50 <50 9.7 51
8-Nov-06 2260 1.4 <1 <1 9.4 47
28-Feb-07 1900 1.2 <I <1 8.9 47
27-Jun-07 1900 1.4 <1 <1 9 45
15-Aug-07 2300 1.3 <1 <1 8.4 43
10-0et-07 2000 1.3 <1 <1 7.8 43
26-Mar-08 2000 1.3 <1 <1 7.6 39
25-Jun-08 1900 1.1 <1 <1 8.68 39
10-Sep-08 1700 1.3 <1 <1 8.15 35
15-0et-08 1700 1.3 <1 <1 9.3 41
C~JlDl'ofoll'm CCar.b:on Clltol"omethsu'e l\iethylene Ni1lrate ChloJi'i4e TW4-1 (ttg/t) TotJrachtt)l'ide (ug(l) CJtlerid'e ~mgll) ~mgfl~ (<<gil) (llgll:)
I1-Mar-09 1700 1.1 <1 <1 7.5 37
24-Jun-09 1500 1 <1 <1 6.9 37
15-Sep-09 1700 <1 <1 <1 7.3 36
29-Dec-09 1400 <1 <1 <1 6.8 41
3-Mar-IO 1300 <1 <1 <1 7.1 35
15-Jun-1O 1600 1.2 <1 <1 6.8 40
24-Aug-l0 1500 <1 <1 <1 6.8 35
14-0ct-10 1500 <1 <1 <1 6.6 40
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-2 Tetrachloride Chloride (ugll) (uWl) (ug/I) tu~/l) (mg/I) (mg/I)
10-Nov-99 2510
2-Sep-00 5220
28-Nov-00 4220 10.7
29-Mar-Ol 3890 10.2
22-Jun-Ol 5500 9.67
20-Sep-Ol 4900 11.4
8-Nov-Ol 5300 10.1
26-Mar-02 5100 9.98
23-May-02 4700 9.78
12-Sep-02 6000 9.44
24-Nov-02 5400 10.4
28-Mar-03 4700 9.5
23-Jun-03 5100 9.6
12-Sep-03 3200 8.6
8-Nov-03 4700 9.7
29-Mar-04 4200 9.14
22-Jun-04 4300 8.22
17-Sep-04 4100 8.4
I7-Nov-04 4500 8.6
16-Mar-05 3700 7.7
25-May-05 3750 8.6
31-Aug-05 3900 <10 <10 <10 8 NA
I-Dee-05 3500 <50 <50 <50 7.8 NA
9-Mar-06 3800 <50 <50 <50 7.5 56
14-Jun-06 3200 <50 <50 <50 7.1 56
20-Jul-06 4120 <50 <50 <50 7.4 54
8-Nov-06 3420 2.3 <1 <1 7.6 55
28-Feb-07 2900 1.8 <1 <1 7.3 54
27-Jun-07 3000 2.5 <1 <1 7.8 50
15-Aug-07 340 2.2 <1 <1 7.3 49
1O-Oet-07 3200 2.1 <1 <1 6.9 51
26-Mar-08 3300 2.3 <1 <1 6.9 48
25-Jun-08 3100 2.2 <1 <1 7.44 46
10-Sep-08 2800 2.4 <1 <1 7.1 42
I5-0et-08 3200 2.4 <2 <2 7.99 47
I1-Mar-09 3100 2.2 <1 <I 6.5 46
24-Jun-09 2800 2 <1 <I 6.4 44
15-Sep-09 3000 2 <1 <1 6.6 43
29-Dee-09 1600 2 <1 <1 6.4 46
CbJ'o¥flfo:rm (CWJ;J)on Cbrloromethane M.eIlylene N ";gte ChlDride TW+-2 Tctraehtm'ide C hl orhle {ugl1) ('ltg/I) (u:glt) l ag/rID (Ul,g'R) (rug/I)
3-Mar-1O 2600 2 <1 <1 6.8 42
lS-Jun-IO 3300 2.6 <1 <1 6.7 43
16-Aug-I O 3300 2.5 <1 <1 6.6 43
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-3 (ugll) Tetrachloride (ugll) Chloride (mgll) (mgll) (u2/1) (uWl)
28-Jun-99 3S00 7.6
29-Nov-99 702
IS-Mar-OO 834
2-Sep-00 836 1.S6
29-Nov-00 836 1.97
27-Mar-Ol 347 1.8S
21-Jun-Ol 390 2.61
20-Sep-OI 300 3.06
7-Nov-OI 170 3.6
26-Mar-02 11 3.87
21 -May-02 204 4.34
12-Sep-02 203 4.32
24-Nov-02 102 4.9
28-Mar-03 0 4.6
23-Jun-03 0 4.8
12-Sep-03 0 4.3
8-Nov-03 0 4.8
29-Mar-04 0 4.48
22-Jun-04 0 3.68
17-Sep-04 0 3.88
17-Nov-04 0 4.1
16-Mar-OS 0 3.S
2S-May-OS <1 NA NA NA 3.7 NA
31-Aug-OS <1 <1 6.4 <1 3.S NA
I-Dee-OS <1 <1 2.3 <1 3.3 NA
9-Mar-06 <1 <1 2.2 <1 3.3 26
14-Jun-06 <1 <1 <1 <1 3.2 26
20-Jul-06 <1 <1 1.6 <1 2.9 26
8-Nov-06 <1 <1 <1 <1 1.S 23
28-Peb-07 <1 <1 <1 <1 3.1 22
27-Jun-07 <1 <1 <1 <1 3.3 23
lS-Aug-07 <1 <1 <1 <1 3.1 24
10-0et-07 <1 <1 <1 <1 2.8 27
26-Mar-08 <1 <1 <1 <1 2.8 21
2S-Jun-OS <1 <1 <1 <1 2.SS 19
IO-Sep-OS <1 <1 <1 <1 2.66 19
IS-Oct-OS <1 <1 <1 <1 2.63 22
4-Mar-09 <1 <1 <1 <1 2.S 21
24-Jun-09 <1 <1 <1 <I 2.9 20
€h'ltl:r@fQ!fm Carb-.m €tlltQ1tometilianc, I Metbyl'One Niml'f~ C1'rl'o.FMe TW4-3 'f 6lrn'l'!htO:l'itll'e I Chloride (Ilgfl)., ~,~g/~) ~~gf,J~ ~ugll) ~nlg'm I (1ilgtJ) ,
15-Sep-09 <1 <1 <1 <1 2.8 21
16-Dec-09 <1 <1 <1 <1 2.5 22
23-Feb-10 <1 <1 <1 <1 2.8 23
8-Jun-10 <1 <1 <1 <1 3 24
lO-Aug-lO <1 <1 <1 <1 3.1 22
5-0 ct-lO <1 <1 <1 <1 3.3 26
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-4 (ugll) Tetrachloride (ugll) Chloride (mgll) (mgll) (ugll) (U~)
6-Jun-00 0
2-Sep-00 0
28-Nov-00 3.9
28-Mar-Ol 2260 1.02
20-Jun-01 3100 14.5
20-Sep-Ol 3200 14
8-Nov-01 2900 14.8
26-Mar-02 3400 15
22-May-02 3200 13.2
12-Sep-02 4000 13.4
24-Nov-02 3800 12.6
28-Mar-03 J300 13.4
23-Jun-03 3600 12.8
12-Sep-03 2900 12.3
8-Nov-03 3500 12.3
29-Mar-04 3200 12.2
22-Jun-04 3500 12.l
17-Sep-04 3100 11.1
17-Nov-04 3600 10.8
16-Mar-05 3100 11.6
25-May-05 2400 NA NA NA 11.3 NA
31-Aug-05 3200 <10 <10 <10 9.9 NA
I-Dec-05 2800 <50 <50 <50 10.2 NA
9-Mar-06 2900 <50 <50 <50 9.5 51
14-Jun-06 2600 <50 <50 <50 8.6 48
20-Jul-06 2850 <50 <50 <50 9.7 50
8-Nov-06 2670 1.7 <1 <1 10.1 49
28-Peb-07 2200 1.5 <1 <1 9 49
27-Jun-07 2400 1.7 <1 <1 9.4 47
15-Aug-07 2700 1.5 <1 <1 9.5 45
10-Oct-07 2500 1.5 <1 <1 9.5 47
26-Mar-08 2800 1.6 <1 <1 9.2 43
25-Jun-08 2500 1.5 <1 <1 10.8 42
10-Sep-08 2200 1.4 <1 <1 8.83 39
15-0ct-08 2500 2 <2 <2 10.1 44
4-Mar-09 2200 1.2 <1 <1 10.2 37
24-Jun-09 1800 1.2 <1 <1 8.2 34
15-Sep-09 2000 1.1 <1 <1 8.4 39
29-0ec-09 950 1.1 <1 <1 7.6 41
e ltlUJl4lfVJ'Dl ~a'li'bt'>n CblUl1'OlUutihBne ~~letut NlD.Jt1u t-11101"id~ ,",4.4 CIl¥Al) 'F0tr8dd'~)JlIid.'e (.) Cbll@rif!i'e ,mgB~ ~ta ,€~,.) (u;~l)
17-Feb-l 0 1700 1 <1 <1 6.6 48
1 O-Jun-l 0 2000 1.2 <1 <1 7.6 35
16-Aug-1O 2100 1.3 <1 <1 7.3 36
11-0ct-J 0 1700 1.3 <1 <1 7.1 38
II Carbon Methylene Chloroform Chloromethane Nitrate Chloride TW4-5 (ugll) Tetrachloride (ugll) Chloride (mgll) (mgll)
[I (ug/l) (uWl)
20-Dec-99 29.5
15-Mar-OO 49.0
2-Sep-OO 124
29-Nov-00 255
28-Mar-Ol 236
20-Jun-Ol 240
20-Sep-Ol 240
7-Nov-OI 260
26-Mar-02 260
22-May-02 300
12-Sep-02 330
24-Nov-02 260
28-Mar-03 240
23-Jun-03 290
12-Sep-03 200
8-Nov-03 240
29-Mar-04 210
22-Jun-04 200
17-Sep-04 150
17-Nov-04 180
16-Mar-05 120
25-May-05 113 NA NA NA 3.7 NA
31-Aug-05 82.0 <2.5 5.8 <2.5 6 NA
I-Dec-05 63.0 <2.5 2.5 <2.5 6 NA
9-Mar-06 66.0 <2.5 3.1 <2.5 6 52
14-Jun-06 51.0 <1 <2.5 <2.5 5.9 51
20-Jul-06 53.7 <1 <1 <1 6.7 54
8-Nov-06 47.1 <1 <I <1 2.9 55
28-Feb-07 33.0 <1 <I <1 7.8 57
27-Jun-07 26.0 <1 <I <1 7 45
15-Aug-07 9.2 <1 <I <1 7.7 38
IO-Oct-07 9.4 <1 <I <1 8.2 39
26-Mar-08 11.0 <1 <I <1 7.4 36
25-Jun-08 9.3 <1 <I <1 8.7 37
10-Sep-08 11.0 <1 <I <1 7.91 34
I5-0ct-08 10.0 <1 <I <1 9.3 37
4-Mar-09 12.0 <1 <1 <1 7.9 34
24-Jun-09 13.0 <1 <1 <1 7.5 37
15-Sep-09 12.0 <1 <1 <1 8.3 48
ChlOl'oform (2arbon ChlQrometb;ane Me~hfL \ne Niitl'ste Chiol'ide 1'W4 .. S 'l'etrae.hIoride ChtoEldc (ugtl) {("~l) ~1lg/~) ,fU:1!ft): ~Dtg/l~ ~mglt)
22-Dec-09 8.5 <1 <1 <1 7.5 41
25-Feb-l0 13.0 <1 <1 <1 6.8 43
9-J 1I11-1 0 12.0 <1 <1 <1 7.1 28
ll-Aug-l0 12.0 <1 <1 <1 7 38
13-0ct-IO 11.0 <1 <1 <1 7.2 41
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-6 Tetrachloride Chloride (ugll) (ugll) (ugll) (ugll) (mgll) (mgll)
6-Jun-00 0
2-Sep-00 0
28-Nov-00 0 ND
26-Mar-01 0 0.13
20-Jun-Ol 0 ND
20-Sep-OI 4 ND
7-Nov-Ol 1 ND
26-Mar-02 0 ND
21-May-02 0 ND
12-Sep-02 0 ND
24-Nov-02 0 ND
28-Mar-03 0 0.1
23-Jun-03 0 ND
12-Sep-03 0 ND
8-Nov-03 0 ND
29-Mar-04 0 ND
22-Jun-04 0 ND
17-Sep-04 0 ND
17-Nov-04 0 ND
16-Mar-05 0 0.2
25-May-05 2.5 NA NA NA 0.4 NA
3I-Aug-05 10.0 <1 2.8 <1 0.8 NA
I-Dec-05 17.0 <1 1.3 <1 0.9 NA
9-Mar-06 31.0 <1 <1 <1 1.2 31
14-Jun-06 19.0 <1 <1 <1 1 30
20-Jul-06 11.0 <1 <1 <1 0.6 37
8-Nov-06 42.8 <1 <1 <1 1.4 65
28-Feb-07 46.0 <1 <1 <1 1.5 32
27-Jun-07 11.0 <1 <1 <1 0.6 38
I5-Aug-07 18.0 <1 <1 <I 0.7 36
1O-Oct-07 18.0 <1 <1 <1 0.8 38
26-Mar-08 52.0 <1 <1 <1 1.1 33
25-Jun-08 24.0 <1 <1 <1 0.9 35
10-Sep-08 39.0 <1 <1 <1 1.14 35
I5-0ct-08 37.0 <1 <1 <1 1.01 33
I I -Mar-09 81.0 <1 <1 <1 2.2 35
24-Jun-09 120 <1 <1 <1 2.7 37
I5-Sep-09 280 <1 <1 <1 5.0 37
22-Dec-09 250 <1 <1 <1 6.1 41
25-Feb-10 1000 <1 <1 <1 1.6 45
lO-Jun-lO 590 <1 <1 <1 2.5 33
12-Aug-1O 630 <1 <1 <1 3.9 31
I3-0ct-IO 420 <1 <1 <1 4.3 41
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-7 (ugll) Tetrachloride (ugll) ChlorJde (mg/l) (mg(l) (uwl) (p-Wl)
29-Nov-99 256
15-Mar-00 616
2-Sep-00 698
29-Nov-00 684 l.99
28-Mar-Ol 747 2.46
20-Jun-Ol 1100 2.65
20-Sep-Ol 1200 3.38
8-Nov-Ol 1100 2.5
26-Mar-02 1500 3.76
23-May-02 1600 3.89
12-Sep-02 1500 3.18
24-Nov-02 2300 4.6
28-Mar-03 1800 4.8
23-Jun-03 5200 7.6
12-Sep-03 3600 7.6
8-Nov-03 4500 7.1
29-Mar-04 2500 4.63
22-Jun-04 2900 4.83
17-Sep-04 3100 5.59
17-Nov-04 3800 6
16-Mar-05 3100 5.2
25-May-05 2700 NA NA NA 5.4 NA
31-Aug-05 3100 <10 <10 <10 5.2 NA
I-Dec-05 2500 <50 <50 <50 5.3 NA
9-Mar-06 1900 <50 <50 <50 1 48
14-Jun-06 2200 <50 <50 <50 4.5 47
20-Jul-06 2140 <50 <50 <50 4.7 51
8-Nov-06 2160 1.5 <1 <1 4.6 49
28-Feb-07 1800 l.1 <1 <I 5 47
27-Jun-07 2600 1.5 <1 <1 5.1 45
l4-Aug-07 2300 1.4 <1 <I 4.7 44
1O-Oct-07 1900 1.2 <1 <I 4.7 45
26-Mar-08 2200 l.3 <1 <1 4.2 43
25-Jun-08 1800 l.3 <1 <I 4.8 43
10-Sep-08 1600 l.4 <1 <1 4.16 35
15-0ct-08 1900 <2 <2 <2 4.01 40
ll-Mar-09 1800 l.2 <1 <1 3.7 35
24-Jun-09 1400 <1 <1 <1 3.8 37
15-Sep-09 1500 1.0 <1 <1 4.1 37
(;1\]:'hOl) I M.0tbybmc
4-7 CJrloTGlol'm TetFachJul'id'e Cbforolttetlntne CJ~DFiclt! Ni~-ute Cld(lr.id_e
(ug/l) 6tq{/f)' (ug/I) (lIwl) (~gt~) (ntgfL)
29-Dec-09 1300 <1 <1 <1 4.2 37
3-Mar-l0 1200 <1 <1 <I 3.8 36
10-Jun-10 1100 <1 <1 <1 3.9 31
18-Aug-1O 1500 1.1 <1 <1 3.9 36
13-0ct-l0 1100 1.1 <1 <1 4 38
II Carbon Methylene Chloroform Chloromethane Nitrate Chloride
II TW4-8 (ug/l) Tetrachloride (ugll) Chloride (mg/l) (mg/l) (uWl) (ullin
29-Nov-99 0
15-Mar-00 21.8
2-Sep-00 102
29-Nov-00 107 ND
26-Mar-OI 116 ND
20-Jun-Ol 180 ND
20-Sep-Ol 180 0.35
7-Nov-OI 180 ND
26-Mar-02 190 0.62
22-May-02 210 0.77
12-Sep-02 300 ND
24-Nov-02 450 ND
28-Mar-03 320 0.8
23-Jun-03 420 ND
12-Sep-03 66.0 ND
8-Nov-03 21.0 0.1
29-Mar-04 24.0 0.65
22-Jun-04 110 0.52
17-Sep-04 120 ND
17-Nov-04 120 ND
16-Mar-05 10.0 ND
25-May-05 <1 NA NA NA 0.2 NA
3I-Aug-05 1.1 <1 1.7 <1 <0.1 NA
30-Nov-05 <1 <1 <1 <1 <0.1 NA
9-Mar-06 1.3 <1 2.1 <1 0.3 39
14-Jun-06 1.0 <1 1.8 <1 <0.1 37
20-Jul-06 <1 <1 <1 <1 0.1 39
8-Nov-06 <1 <1 <1 <1 <0.1 40
28-Peb-07 2.5 <1 <1 <1 0.7 39
27-Jun-07 2.5 <1 <1 <1 0.2 42
15-Aug-07 1.5 <1 <1 <1 <0.1 42
IO-Oct-07 3.5 <1 <1 <1 0.5 43
26-Mar-08 <1 <1 <1 <1 0.1 46
25-Jun-08 <1 <1 <1 <1 <0.05 45
IO-Sep-08 <1 <1 <1 <1 <0.05 39
15-0ct-08 <1 <1 <1 <1 <0.05 44
4-Mar-09 <1 <1 <1 <1 <0.1 42
24-Jun-09 <1 <1 <1 <1 <0.1 44
15-Sep-09 <1 <1 <1 <1 <1 44
Chloroform Carbon Chloromethane Methylene Nitrate €hlol'ide TW4-8 Tetrachloride Chloride (ug/l) (ugllJ (ug/l) (uetl) (mg/I) (lng/I)
17-Dec-09 <1 <1 <1 <1 <0.1 51
24-Feb-1O <1 <1 <1 <1 <0.1 57
9-Juo-IO <1 <1 <1 <1 <0.1 42
ll-Aug-IO <1 <1 <1 <1 <0.1 45
5-0ct-1O <1 <1 <1 <1 <0.1 46
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-9 (ugll) Tetrachloride (ugll) Chloride (mgll) (mgll) (ugll) (ug/l)
20-Dec-99 4.2
15-Mar-00 1.9
2-Sep-00 14.2
29-Nov-00 39.4 ND
27-Mar-Ol 43.6 NO
20-Jun-Ol 59.0 0.15
20-Sep-Ol 19.0 0.4
7-Nov-Ol 49.0 0.1
26-Mar-02 41.0 0.5
22-May-02 38.0 0.65
12-Sep-02 49.0 0.2
24-Nov-02 51.0 0.6
28-Mar-03 34.0 0.6
23-Jun-03 33.0 0.8
12-Sep-03 32.0 1.1
8-Nov-03 46.0 1.1
29-Mar-04 48.0 0.82
22-Jun-04 48.0 0.75
I7-Sep-04 39.0 0.81
I7-Nov-04 26.0 1.2
I6-Mar-05 3.8 1.3
25-May-05 1.2 NA NA NA 1.3 NA
3I-Aug-05 <1 <1 2.9 <1 1.3 NA
I-Dee-05 <1 <1 <1 <1 1.3 NA
9-Mar-06 <1 <1 2.6 <1 1.5 38
14-Jun-06 <1 <1 2.7 <1 1.5 39
20-Ju1-06 <1 <1 <1 <1 0.9 41
8-Nov-06 <1 <1 <1 <1 0.7 44
28-Feb-07 <1 <1 <1 <1 0.6 44
27-Jun-07 21 <1 <1 <1 1.3 42
I5-Aug-07 9.5 <I <1 <1 1.8 38
IO-Oet-07 8.7 <1 <1 <I 2 40
26-Mar-08 1.3 <1 <I <1 2.1 35
25-Jun-08 1.0 <1 <1 <1 2.3 35
10-Sep-08 <I <1 <1 <1 2.79 28
I5-0ct-08 <1 <1 <1 <1 1.99 58
4-Mar-09 <1 <1 <1 <1 2.5 30
24-Jun-09 <1 <1 <1 <1 2.3 30
I5-Sep-09 <1 <1 <1 <I 2.5 30
Chloroform Carbon ehioJronlidla'lle N~en~' Nitra_ Chloli'iCle.
1'W4' .. ' (ug/l) Tetrachlor:ide qug}J~} Cllfpride (mgtl!); (Plgt .. ) (ugLJ) (IUg1.J~
17-Dec~09 <1 <1 <1 <1 1.7 37
23-Feb-lO <1 <1 <1 <1 1.7 47
9-Jun-l0 <1 <I <1 <1 1.5 33
ll-Aug-IO <1 <1 <1 <1 1.2 40
6-0ct-IO <1 <1 <1 <1 1.8 34
;
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-10 (ugll) Tetrachloride (ugll) Chloride (mgll) (mgtl) (ugll) (u2ll)
21-Jan-02 14
26-Mar-02 16 0.14
21-May-02 17 0.11
12-Sep-02 6 ND
24-Nov-02 14 ND
28-Mar-03 29 0.2
23-Jun-03 110 0.4
12-Sep-03 74 0.4
8-Nov-03 75 0.3
29-Mar-04 22 0.1
22-Jun-04 32 ND
17-Sep-04 63 0.46
17-Nov-04 120 0.4
16-Mar-05 140 1.6
25-May-05 62.4 NA NA NA 0.8 NA
31-Aug-OS 110 <2.S 6.2 <2.5 1.1 NA
I-Dec-05 300 <2.5 <2.S <2.5 3.3 NA
9-Mar-06 190 <S <50 <50 2.4 SO
14-Jun-06 300 <5 <50 <50 3.5 54
20-Jul-06 504 <5 <50 <50 6.8 61
8-Nov-06 452 <1 1.6 1 5.7 58
28-Feb-07 500 <1 <1 1 7.6 62
27-Jun-07 3S0 <1 <1 1 S.1 S4
lS-Aug-07 660 <1 <1 1 7.3 59
10-0ct-07 470 <1 <1 1 6.7 59
26-Mar-08 620 <1 <1 1 7.3 55
2S-Jun-08 720 <1 <1 1 9.91 58
10-Sep-08 680 <1 <1 1 9.23 51
IS-0ct-08 1200 <2 <2 2 10.5 61
11-Mar-09 1100 <1 <1 1 11.6 64
24-Jun-09 1200 <1 <1 1 9.8 62
IS-Sep-09 910 <1 <1 1 8.1 51
22-Dec-09 300 <1 <1 <1 3.5 S1
3-Mar-10 460 <1 <1 <1 S 49
10-Jun-10 220 <1 <1 <1 1.6 42
12-Aug-10 100 <1 <1 <1 0.8 38
13-0ct-l0 1100 <1 <1 <1 11 52
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-11 Tetrachloride (ugll) (ugll) (ugll) Chloride (ugll) (mgll) (mgll)
21-Jan-02 4700
26-Mar-02 4900 9.6
22-May-02 5200 9.07
12-Sep-02 6200 8.84
24-Nov-02 5800 9.7
28-Mar-03 5100 9.7
23-Jun-03 5700 9.4
12-Sep-03 4600 9.9
8-Nov-03 5200 9.3
29-Mar-04 5300 9.07
22-Jun-04 5700 8.74
17-Sep-04 4800 8.75
17-Nov-04 5800 9.7
16-Mar-05 4400 8.7
25-May-05 3590 NA NA NA 10.3 NA
31-Aug-05 4400 <10 <10 <10 9.4 NA
I-Dee-05 4400 <100 <100 <100 9.4 NA
9-Mar-06 4400 <50 <50 <50 9.2 56
l4-Jun-06 4300 <50 <50 <50 10 56
20-Jul-06 4080 <50 <50 <50 10 55
8-Nov-06 3660 1.7 2.7 1.3 10· 55
28-Feb-07 3500 1.3 <1 1.6 10.1 54
27-Jun-07 3800 1.6 <1 1.1 10.6 53
15-Aug-07 4500 1.7 <1 1.1 10.2 53
10-0et-07 4400 l.6 <1 1.2 9.8 53
26-Mar-08 340 <1 <1 <1 7.7 63
25-Jun-08 640 <1 <1 <1 7.28 46
10-Sep-08 900 <1 <1 <1 7.93 42
I5-0ct-08 1000 <2 <2 <2 9.46 47
ll-Mar-09 1100 <1 <1 <1 7.3 49
24-Jun-09 980 <1 <1 <1 6.8 44
15-Sep-09 1000 <1 <1 <1 7 49
29-Dec-09 860 <1 <1 <1 6.6 46
3-Mar-10 820 <1 <1 <1 6.8 42
10-Jun-l0 820 <1 <1 <1 6.9 40
12-Aug-1O 800 <1 <1 <1 6.7 43
13-0ct-1O 720 <1 <1 <1 6.4 49
Chloroform Carbon Chlorom~th8ne Metbylene Nitrate Cbloride TW4 .. U (ugll) l'e~achloride (ugll) CbloJ.'lide (mg/I) (mgll) (ugl.) Jugtl)
12-Sep-02 2 2.54
24-Nov-02 0 2.2
28-Mar-03 0 1.9
23-Jun-03 0 1.8
12-Sep-03 0 1.8
9-Nov-03 0 1.6
29-Mar-04 0 1.58
22-Jun-04 0 1.4
17-Sep-04 0 1.24
17-Nov-04 0 l.5
16-Mar-05 0 1.4
25-May-05 <1 NA NA NA 1.6 NA
31-Aug-05 <1 <1 5.8 <1 l.5 NA
I-Dec-05 <1 <1 1.9 <2 1.4 NA
9-Mar-06 <1 <1 2.6 <1 l.3 19
14-Jun-06 <1 <1 1.4 <1 l.4 16
20-JuJ-06 <1 <1 <1 <1 1.4 16
8-Nov-06 <1 <1 <1 <1 1.4 16
28-Peb-07 <1 <1 <1 <1 1.5 16
27-Jun-07 <1 <1 <1 <1 1,5 18
15-Aug-07 <1 <1 <1 <1 1.4 29
10-0ct-07 <1 <1 <1 <1 1.4 16
26-Mar-08 <1 <1 <1 <1 l.6 16
25-Jun-08 <1 <1 <1 <1 2.69 19
10-Sep-08 <1 <1 <1 <1 2.65 18
15-0ct-08 <1 <1 <1 <1 2.47 22
4-Mar-09 <1 <1 <1 <1 2.4 23
24-Jun-09 <1 <1 <1 <1 3.8 22
15-Sep-09 <1 <1 <1 <1 5.1 22
16-Dec-09 <1 <1 <1 <1 3.6 23
23-Feb-l0 <1 <1 <1 <1 4 22
8-Jun-l0 <1 <1 <1 <1 11 29
lO-Aug-lO <1 <1 <1 <1 9 35
5-0ct-l0 <1 <1 <1 <1 8 31
Carbon Chlorom Methylen
TW4-13 Chloroform Tetrachlo ethane e Nitrate Chloride
(ugll) ride (ugll) ehloride (mgll) (mgll)
(uwl) (u21l,)
12-Sep-02 ND ND
24-Nov-02 ND ND
28-Mar-03 ND 0.2
23-Jun-03 ND 0.2
12-Sep-03 ND ND
9-Nov-03 ND 0.9
29-Mar-04 ND 0.12
22-Jun-04 ND 0.17
17-Sep-04 ND 4.43
17-Nov-04 ND 4.7
16-Mar-05 ND 4.2
25-May-05 <1 NA NA NA 4.3 NA
3I-Aug-05 <1 <1 3.1 <1 4.6 NA
I-Dee-05 <1 <1 <1 <1 4.3 NA
9-Mar-06 <1 <1 1.7 <1 4.2 67
14-Jun-06 <1 <1 1.4 <1 4.9 66
20-Jul-06 <1 <1 <1 <1 4.3 65
8-Nov-06 <1 <1 <1 <1 0.8 33
28-Feb-07 <1 <1 <1 <1 4 59
27-Jun-07 <1 <1 <1 <1 4.6 59
15-Aug-07 <1 <1 <1 <1 4.4 58
1O-Oct-07 <1 <1 <1 <1 4 .1 58
26-Mar-08 <1 <1 <1 <1 3.8 54
25-Jun-08 <1 <1 <1 <1 4.24 58
1O-Sep-08 <1 <1 <1 <1 4.26 50
15-0ct-08 <1 <1 <1 <1 4.63 58
4-Mar-09 <1 <1 <1 <1 3.7 58
24-Jun-09 <1 <1 <1 <1 1.2 57
15-Sep-09 <1 <1 <1 <1 4.7 63
16-Dec-09 <1 <1 <1 <1 4.1 60
24-Feb-10 <1 <1 <1 <1 4.3 53
8-Jun-10 <1 <1 <1 <1 5.2 52
10-Aug-10 <1 <1 <1 <1 5.6 55
5-0ct-10 <1 <1 <1 <1 5.8 55
TW4-14
15-Sep-09 <1
Carbon
Tetrachloride
<1
Chloromethane
(ug/O
<1
<1
TW4-1S Chloroform Carbon Chloromethane Methylene Nitrate Chloride
(MW-26) (ugll) Tetrachloride (ugll) Chloride (mgll) (mgll) (ugll) (ugll)
12-Sep-02 3 ND
24-Nov-02 0 ND
28-Mar-03 0 0.1
23-Jun-03 7800 14.5
15-Aug-03 7400 16.8
12-Sep-03 2500 2.7
25-Sep-03 2600 2.5
29-0ct-03 3100 3.1
8-Nov-03 3000 2.8
29-Mar-04 NA NA
22-Jun-04 NA NA
I7-Sep-04 1400 0.53
17-Nov-04 300 0.2
16-Mar-05 310 0.3
30-Mar-05 230 0.2
25-May-05 442 NA NA NA 0.2 NA
31-Aug-05 960 <5 5.4 <5 0.2 NA
I-Dec-05 1000 <50 <50 <50 0.3 NA
9-Mar-06 1100 <50 <50 <50 0.2 52
14-Jun-06 830 <50 <50 <50 0.2 52
20-Jul-06 2170 <50 <50 <50 1.4 65
8-Nov-06 282 <1 <1 2.8 0.3 54
28-Feb-07 570 <1 <1 5.5 0.5 56
27-Jun-07 300 <1 <1 13 0.4 49
15-Aug-07 1400 <1 <1 36 1 57
10-0ct-07 2000 <1 <1 14 0.6 57
26-Mar-08 930 <1 <1 40 O.l 49
25-Jun-08 1300 <1 <1 53 0.56 57
IO-Sep-08 630 <1 <1 24 0.24 44
I5-0ct-08 1700 <1 <1 100 0.65 64
4-Mar-09 950 <1 <I 51 0.4 49
24-Jun-09 410 <1 <1 12 0.2 48
15-Sep-09 850 <1 <1 30 0.1 46
14-Dec-09 1100 <1 <I 40 2.3 60
17-Feb-IO 780 <1 <1 19 0.2 57
9-Jun-IO 1900 <1 <1 28 1.1 58
16-Aug-l0 2200 <1 <1 21 0.6 49
11-0ct-l0 970 <1 <1 6.5 0.7 65
€hloroform C'arbon Chloromethane Methylene Nitrate Chloride TW4-16 (ugll) Tetrachloride (ugll) Chloride (mgll) (mg/I) 1(1.1211) (ul!ll)
12-Sep-02 140 ND
24-Nov-02 200 ND
28-Mar-03 260 ND
23-Jun-03 370 ND
12-Sep-03 350 ND
8-Nov-03 400 ND
29-Mar-04 430 ND
22-Jun-04 530 ND
17-Sep-04 400 ND
17-Nov-04 350 ND
16-Mar-05 240 ND
25-May-05 212 NA NA NA <0.1 NA
3I-Aug-05 85 <1 3.2 43 <O.l NA
I-Dee-05 14 <2.5 2.6 5.9 1.4 NA
9-Mar-06 39.0 <1 1.1 21 3 60
14-Jun-06 13.0 <1 2.4 8.9 1.9 55
20-Jul-06 5.2 <1 <1 2.7 2.7 60
8-Nov-06 13.6 <1 <1 9.2 5.6 62
28-Feb-07 8.7 <1 <1 6.5 12.3 79
27-Jun-07 2.6 <1 <1 1.8 9.9 75
I5-Aug-07 7.1 <1 <1 5.l 5.4 66
10-Oet-07 1.4 <1 <1 <1 4.4 69
26-Mar-08 11.0 <1 <1 26 ND 52
25-Jun-08 <I <I <1 <1 1.46 58
10-Sep-08 10 <1 <1 14 10.5 71
I5-0ct-08 3.9 <1 <1 6.6 9.82 89
4-Mar-09 <1 <1 <1 <1 9.6 78
24-Jun-09 <1 <1 <1 <1 8.9 76
15-Sep-09 <1 <1 <1 <1 8.8 79
17-Dec-09 <1 <1 <I <1 5.2 76
24-Feb-IO <1 <1 <1 <1 4.2 77
9-Jun-10 2.1 <1 <1 <1 4.7 64
24-Aug-1O 4.3 <1 <1 <1 4.6 72
6-0ct-l0 3.0 <1 <1 <1 3.3 72
TW4-17 Chloroform Carbon Chloromethane Methylene Nitrate Chloride
(MW-32) (ugll) Tetrachloride (ugll) Chloride (mgll) (mg/!) (ug/I) (ug/l)
12-Sep-02 1.6 ND
24-Nov-02 ND ND
28-Mar-03 ND ND
23-Jun-03 ND ND
12-Sep-03 ND ND
8-Nov-03 ND ND
29-Mar-04 NO ND
22-Jun-04 ND ND
17-Sep-04 ND ND
17-Nov-04 ND ND
16-Mar-OS NO ND
30-Mar-OS ND ND
2S-May-OS <1 NA NA NA <0.1 NA
31-Aug-05 <1 <1 3.2 <1 <0.1 NA
I-Dec-OS <1 <1 <1 <1 <0.1 NA
9-Mar-06 <1 <1 <1 <1 <0.1 32
14-Jun-06 <1 <1 3.S <1 <0.1 30
20-Jul-06 <1 <1 1.8 <1 <0.1 32
8-Nov-06 <1 <1 I.S <1 <0.1 31
28-Feb-07 <1 <1 <1 <1 <0.1 32
27-Jun-07 <1 <1 <1 <1 <0.1 32
15-Aug-07 <1 <1 <1 <1 <0.1 31
10-0ct-07 <I <I <1 <1 <0.1 32
26-Mar-08 <I <1 <I <1 <0.1 31
2S-Jun-08 <1 <1 <1 <1 <0.05 29
10-Sep-08 <1 <1 <1 <1 <0.05 30
IS-Oct-08 <1 <1 <1 <1 <0.05 26
4-Mar-09 <1 <1 <1 <1 <0.1 30
24-Jun-09 <1 <1 <1 <1 <0.1 31
15-Sep-09 <1 <1 <1 <I <0.1 33
I6-Dec-09 <1 <1 <1 <1 <0.1 34
17-Feb-1O <I <1 <1 <I <0.1 38
14-Jun-IO <1 <1 <1 <1 <0.1 32
16-Aug-1O <1 <1 <1 <I <0.1 28
6-0ct-IO <1 <1 <1 <I <0.1 24
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-18 (ug/l) Tetrachloride (ug/l) Chloride (mgll) (mgll) (uwl) (ug/l)
12-Sep-02 440 1.49
24-Nov-02 240 13.3
28-Mar-03 160 13.1
23-Jun-03 110 19
12-Sep-03 68.0 19.9
9-Nov-03 84.0 20.7
29-Mar-04 90.0 14
22-Jun-04 82.0 12.2
17-Sep-04 38.0 14.5
17-Nov-04 51.0 17.3
16-Mar-05 38.0 14.1
25-May-05 29.8 NA NA NA 12.9 NA
31-Aug-05 39 <1 2.8 <1 13.3 NA
I-Dec-05 14 <1 1.1 <1 7.3 NA
9-Mar-06 12.0 <1 1.1 <1 5.9 5.9
14-Jun-06 12.0 <1 1.6 <1 4.7 35
20-Jul-06 10.8 <1 2.7 <1 6.1 35
8-Nov-06 139 <1 <1 <1 8.7 34
28-Feb-07 9.2 <1 <1 <1 5.1 30
27-Jun-07 8.0 <1 <1 <1 4.9 28
15-Aug-07 8.9 <1 <1 <1 5 32
10-0ct-07 7.4 <1 <1 <1 4.4 27
26-Mar-08 6.4 <1 <1 <1 0.7 23
25-Jun-08 5.7 <1 <1 <1 4.55 23
10-Sep-08 8.0 <1 <1 <1 4.68 26
I5-0ct-08 9.4 <1 <1 <1 5,15 30
4-Mar-09 11.0 <1 <1 <1 5.2 29
24-Jun-09 16.0 <1 <1 <1 6.2 30
15-Sep-09 13.0 <1 <1 <1 5.9 26
22-Dec-09 8.2 <1 <1 <1 5.4 30
24-Feb-10 69.0 <1 <1 <1 5.1 41
9-Jun-10 29.0 <1 <1 <1 9 35
12-Aug-10 29.0 <1 <1 <1 9 37
13-0ct-10 30.0 <1 <1 <1 10 50
Chloroform Carbon Chloromethane MethYlene ~
'l'W4-19 (ugll) Tetrachloride (ugll) Chloride
(U2'/1) (uwl) "i
1 ?-Sep-02 7700
24-Nov-02 5400 42
28-Mar-03 4200 61.4
15-May-03 4700 NA
23-J L-03 4500 11.4
I5-JuI-03 2400 6.8
15·Aug-03 2600 4
12-Sep-03 2500 5.7
25-S~p-03 4600 9.2
29-0d-03 4600 7.7
9-Nov-03 2600 4.8
29-Mar-04 NA NA
22-Jun-04 NA NA
16-Aug-04 7100 9.91
17S~ep-()d 2600 4.5
17-Nov-04 1800 3.6
16-Mar-05 2200 5.3
25-May-05 1200 5,7
31-A1lg-OS 1400 <5 <5 <5 4.6 NA
I-Dee-OS 2800 <50 <50 <50 <0.1 NA
9-Mar-06 1200 <50 <50 <50 4 86
14-Jun-06 1100 <50 <50 <50 5.2 116
20-Jul-06 1120 <50 <50 <50 4.3 123
8-Nov-06 1050 1.6 2.6 :1 4.6 134
28-Feb-07 1200 1.3 <1 :1 4 133
27-Jun-07 1800 2.3
15-Aug-07 1100 1.9 <1 <1 4.1 129
IO-Oet-07 1100 1.9 <1 <1 4 132
26-Mar-08 1800 2.9 <1 <1 2.2 131
25-Jun-08 1000 1 <1 <1 2.81 128
IO-Sep-08 3600 8.6 <1 <1 36.2 113
1S-0d-O~ 4200 12 <1 <1 47.8 124
4-Mar-09 1100 1.2 <1 <1 3.2 127
24-Jun-09 990 1.2 <1 <1 2.4 132
15-Sep-09 6600 15 <1 <1 0.1 43
Id·Dee-09 4700 16 <1 <1 26 . .7 124
I7-Feb-1O 940 1.3 <1 <1 2 144
9-Jun-IO 1800 4.2 <1 <1 4.4 132
Chlorofor:m Carbon Chloromethane Methylene Nitrate Chloride TW4~ZO Tetrachloride Chloride (ug/l) '(Ug/I.) (ug/I) (U2/1) (mg/I) (mg/I)
25-May-05 39000 NA NA NA 10.1 NA
31-Aug-05 3800 <10 <10 <10 2.9 NA
I-Dec-05 19000 <250 <250 <250 1.8 NA
9-Mar-06 9200 <500 <500 <500 3.8 120
14-Jun-06 61000 <500 <500 <500 9.4 235
20-Jul-06 5300 <1000 <1000 <1000 2.9 134
8-Nov-06 11000 7.1 1.9 2.2 3.5 124
28-Feb-07 4400 3.1 <1 1.1 4.2 124
27-Jun-07 1800 2.2 <1 <1 2.3 112
15-Aug-07 5200 3.5 <1 1.8 2.1 117
10-Oct-07 9000 6.8 <1 1.9 5.6 170
26-Mar-08 13000 9 <1 1.5 0.9 132
25-Jun-08 30000 13 <1 1.2 7.96 191
10-Sep-08 21000 15 <1 3.7 4.44 156
15-0ct-08 NA NA NA NA 5.51 166
4-Mar-09 8200 5.7 <1 5.2 5.1 164
24-Jun-09 6800 4.9 <2 4.2 2.9 164
15-Sep-09 13000 8.4 <2 4.4 3.3 153
14-Dec-09 15000 14 <I 3 5.3 187
17-Feb-lO 3500 2.7 <1 3.2 2 179
1 4-Jun-l 0 18000 11 <1 3.7 5.6 200
16-Aug-IO 15000 12 <1 2.2 5.3 196
11-0ct-1O 24000 20 <1 5.5 4.6 203
Chloroform c:arbon 'Chloromethane Metpylene Nitrate Chloride TW~-21 Tetrachloride Chloride (ugfl) (ug/I) (ug/l) ( ... g/l). (mg/l) (mg/l)
2S-May-05 192 NA NA NA 14.6 NA
31-Aug-OS 78 <S <5 <S 10.1 NA
I-Dec-OS 86 <1 1.0 <1 9.6 NA
9-Mar-06 120 <2.5 <2.5 <2.5 8.S 347
14-Jun-06 130 <2.5 <2.S <2.5 10.2 318
20-Jul-06 106 <2.S <2.5 <2.5 8.9 3S7
8-Nov-06 139 2 <1 <1 8.7 296
28-Peb-07 160 1.8 <1 <1 8.7 306
27-Jun-07 300 5.8 <1 <1 8.6 327
IS-Aug-07 140 <1 <1 <1 8.6 300
10-0ct-07 120 <1 <1 <1 8.3 288
26-Mar-08 380 7 <1 <1 14.3 331
25-Jun-08 160 1.7 <1 <1 8.81 271
10-Sep-08 120 1.6 <1 <1 7.S7 244
I5-0ct-08 170 2 <1 <2 8.00 284
II-Mar-09 180 <1 <1 <1 8.3 279
24-Jun-09 200 <I <1 <1 8.1 291
IS-Sep-09 140 <1 <1 <1 9.2 281
22-Dec-09 160 <1 <1 <1 8.4 256
2S-Feb-l0 170 <1 <1 <1 8.4 228
10-Jun-l0 210 1.2 <1 <1 12 266
12-Aug-10 390 9.2 <1 <1 14 278
13-0ct-10 200 1.2 <1 <1 7 210
I' Carbon Methylene Chloroform Chloromethane Nitrate Chloride TW4-22 (ugll) Tetrachloride (ug/l) Chloride (mgll) (mgll) (ug/l) (ug/l)
25-May-05 340 NA NA NA 18.2 NA
31-Aug-05 290 <5 <5 <5 15.7 NA
I-Dec-05 320 <5 <5 <5 15.1 NA
9-Mar-06 390 <10 <10 <10 15.3 236
14-Jun-06 280 <10 <10 <10 14.3 221
20-Jul-06 864 <10 <10 <10 14.5 221
8-Nov-06 350 <1 1.6 <1 15.9 236
28-Feb-07 440 <1 <1 <1 20.9 347
27-Jun-07 740 <1 <1 <1 19.3 273
15-Aug-07 530 <1 <1 <1 19.3 259
10-0ct-07 440 <1 <1 <1 18.8 238
26-Mar-08 1400 <1 <1 <1 39.l 519
25-Jun-08 1200 <1 <1 <1 41.9 271
10-Sep-08 6300 1.3 <1 <1 38.7 524
IS-0ct-08 630 <2 <2 <2 36.3 539
II-Mar-09 390 <1 <1 <1 20.7 177
24-Jun-09 730 <1 <1 <1 20.6 177
IS-Sep-09 2300 <1 <1 <1 40.3 391
29-Dec-09 380 <1 <1 <1 17.8 175
3-Mar-l0 2200 <1 <1 <1 36.6 427
15-Jun-l0 540 <1 <1 <1 19 134
24-Aug-l0 340 <1 <1 <1 15 130
13-0ct-10 340 <1 <1 <1 16 134
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-23 (ugll) Tetrachloride (ug/l) Chloride (mg/l) (mg/I) (ug/I) (ue/I)
27-Jun-07 <1 <1 <1 <1 <0.1 47
15-Aug-07 <1 <1 <1 <1 <0.1 46
IO-Oct-07 <1 <1 <1 <1 <0.1 43
26-Mar-08 <1 <1 <1 <1 <0.1 41
25-Jun-08 <1 <1 <1 <1 <0.05 41
10-Sep-08 <1 <1 <1 <1 <0.05 35
I5-0ct-08 <2 <2 <2 <2 <0.05 51
4-Mar-09 <1 <1 <1 <1 <0.1 41
24-Jun-09 <1 <1 <1 <1 <0.1 43
I5-Sep-09 <1 <1 <1 <1 <0.1 43
I6-Dec-09 <1 <1 <1 <1 <0.1 37
24-Feb-IO <1 <I <1 <1 <0.1 45
8-Jun-1O <1 <1 <1 <1 <0.1 40
IO-Aug-l0 <1 <1 <1 <1 <0.1 40
5-0ct-l0 <1 <1 <1 <1 <0.1 34
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-24 (ug/l) Tetrachloride (ug/I) Chloride (mg/I) (mgll) (uwl) (uWl)
27-Jun-07 2.6 <1 <1 <1 26.1 770
15-Aug-07 2.2 <1 <1 <1 29 791
IO-Oct-07 1.5 <1 <1 <1 24.7 692
26-Mar-08 1.5 <1 <1 <1 24.4 740
25-Jun-08 1.4 <1 <1 <1 45.3 834
10-Sep-08 2.9 <1 <1 <1 38.4 1180
15-0ct-08 <2 <2 <2 <2 44.6 1130
4-Mar-09 1.4 <1 <1 <1 30.5 1010
24-Jun-09 1.5 <1 <1 <1 30.4 759
IS-Sep-09 1.4 <1 <1 <1 30.7 618
17-Dec-09 1.2 <1 <1 <1 28.3 1080
25-Feb-l0 1.3 <1 <1 <1 33.1 896
9-Jun-l0 1.7 <1 <1 <1 30 639
24-Aug-IO 1.8 <1 <1 <1 31 587
6-0ct-1O 1.4 <1 <1 <1 31 522
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-25 (uglI) Tetrachloride (ug/l) Chloride (mglI) (mglI) (ug/I) (uglI)
27-Jun-07 <1 <1 <1 <1 17.1 39S
IS-Aug-07 <1 <1 <1 <1 16.7 382
10-Oct-07 <1 <1 <1 <1 17 3S6
26-Mar-OE <1 <1 <1 <1 18.7 374
2S-Jun-08 <1 <1 <1 <1 22.1 344
IO-Sep-08 <1 <1 <1 <1 18.8 333
IS-Oct-08 <2 <2 <2 <2 2l.3 366
4-Mar-09 <1 <1 <1 <1 IS.3 332
24-Jun-09 <1 <1 <1 <1 IS.3 328
IS-Sep-09 <1 <1 <1 <1 3.3 328
16-Dec-09 <1 <1 <1 <1 14.2 371
23-Feb-1O <1 <1 <1 <1 14.4 296
8-Jun-l0 <1 <1 <1 <1 16 306
10-Aug-l0 <1 <1 <1 <1 14 250
S-Oct-lO <1 <1 <1 <1 IS 312
C.hJ'orofo¥D1 Carbon ChI'aromei llane N'f.etbylerre Nitrate £Mtwhte 1'W41-aD (lUg/I) Tetra&lrloricle (u;gl~) Chhuid:e (mgtl) (mgll) ('tl1!/I~J (I(WI~
lS-Jun-1O 13 <1 <I <1 7.9 33
ll-Aug-lO 5 <1 <1 <1 9 17
6-0ct-IO 5.4 <1 <1 <1 9.6 22
TabL
Chloroform Concentration Trend Graphs
o
~ o o o
~ o o o
(ug/L)
w o o o
~ o o o
tTl o o o
CJ) o o o
Sep-99 I » ....
Dec-99 j
Mar-OO
Jun-OO
Sep-OO
Dec-OO -
Mar-01
Jun-01
Sep-01
Dec-01 -
Mar-02
Jun-02
Sep-02 -
Dec-02 ..
Mar-03 •
Jun-03 -
Sep-03
Dec-03 i I 7
Mar-04
Jun-04 r I .j
Sep-04
Dec-04
Mar-OS
Jun-OS
Sep-OS
Dec-OS
Mar-06
Jun-06
Sep-06
Dec-06
Mar-O?
Jun-O?
Sep-O?
Dec-O?
Mar-OB
Jun-OB -
Sep-OB
Dec-OB
Mar-09
Jun-09
Sep-09
Dec-09
Mar-10
Jun-10
Sep-10 -1 « ......
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a
TW4-2 Chloroform Values
7000
6000
5000
4000
:i' -Cl ::::s
-3000
2000
Data point represented corresponds
1000 -I I to laboratory results. The value is
likely underestimated due to
laboratory error not considering the
dilution factor of 10.
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TabM
CSV Transmittal Letter
Kathy Weinel
From:
Sent:
To:
Cc:
Subject:
Attachments:
Dear Mr. Lundberg,
Kathy Weinel
Monday, January 31 J 2011 1 :53 PM
[e-mail]
Jo Ann Tischler; David Frydenlund
Transmittal of CSV Files White Mesa Mill 2010 Q4 Chloroform Monitoring
C1 01 00403.csv; C1 01 00654.csv
Attached to this e-mail are electronic copies of laboratory results for chloroform monitoring conducted at the White
Mesa Mill during the fourth quarter of 2010, in Comma Separated Value (CSV) format.
Please contact me at 303-389-4134 if you have any questions on this transmittal.
Yours Truly
Kathy Weinel
Denison Mines (USA) Corp.
Quality Assurance Manager
1