DRC-2011-007636 - 0901a0688029173b

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[njjjH^k Denison Mines (USA) Corp.
1050 17th Street, Suite 950
Denver, CO 80265
USA
INES '^^^ '• 628-7798
Fax:[phone]
www.deniisonmfnes.com
Sent VIA Federal Express
November 28, 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 3rd Quarter 2011 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
3rd Quarter of 2011 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.
D^sjDN IVIiNES (USA) CORP.
Jo Ann Tischler
Director, Compliance and Permitting
CC: Ron F. Hochstein
David C. Frydenlund
Harold R. Roberts
David E.Turk
Kathy Weinel
Central Files
OENISOJ)~~
MINES
Sent VIA Federal Express
November 28,2011
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.denisonmines.com
Re: Transmittal of 3rd Quarter 2011 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
3rd Quarter of 2011 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.
( D S\ NINES (USA) CORP.
~V'--'" Jo Ann Tischler
Director, Compliance and Permitting
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 of Violation and Groundwater Corrective Action Order UDEQ
Docket No. UGQ-20-01
3rd Quarter
(July through September)
2011
Prepared by:
Denison Mines (USA) Corp.
1050 17th Street, Suite 950
Denver CO 80265
November 28, 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 ............................................................................................................ 5
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 ..................................................................... 6
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 ............................................................................ 8
3.4.3 Receipt Temperature Evaluation ................................................................. 8
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 ................................................................................ 9
3.4.9 Other Laboratory QAlQC ......................................................................... 11
4.0 INTERPRETATION OF DATA ....................................................................... 12
4.1 Interpretation of Groundwater Levels, Gradients and Flow Directions ........... 12
4.1.1 Current Site Groundwater Contour Map ................................................... 12
4.1.2 Comparison of Current Groundwater Contour Maps to Groundwater
Contour Maps for Previous Quarter......................................................... 13
4.1.3 Hydrograpbs .............................................................................................. 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, MW-26, TW4-19, TW4-20, AND
TW 4-4 OPERATIONS REPORT ..................................................................... 17
5.1 Introduction ....................................................................................................... 17
5.2 Pump Test Data Collection ............................................................................... 17
5.3 Water Level Measurements .............................................................................. 18
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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 MW-26 ...................................................................................................... 19
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 Chloroform Levels ............................................................. 20
6.2 Assessment of Previous Quarter's Corrective Actions .......................................... 21
7.0 CONCLUSIONS AND RECOMMENDATIONS ............................................ 21
8.0 ELECTRONIC DATA FILES AND FORMAT .............................................. 23
9.0 SIGNATURE AND CERTIFICATION ........................................................... 24
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
1-1 Field Data QAJQC 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 QAJQC 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
Tab N Disinfection byproducts -Trihalomethanes
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1.0 INTRODUCTION
The presence of chloroform was initially identified in groundwater at the White Mesa
Mill (the "Mill") as a result of split sampling performed 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 R317-6-6.15(D).
The frequency of chloroform sampling, which was initially performed on a monthly
basis, was modified on November 8, 2003. Since that time all chloroform contaminant
investigation wells have been sampled on a quarterly basis.
This is the Quarterly Chloroform Monitoring Report for the third quarter of 2011 as
required under the NOV and CAO. This Report also includes the Operations Report for
the Long Term Pump Test at MW-4, TW4-19, MW-26 (previously referred to as TW4-
15), 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 chloroform contaminant investigation wells and temporary nitrate
investigation wells is attached under Tab A. Chloroform samples and measurements
taken during this reporting period (July through September), are discussed in the
remainder of this section.
2.1.1 Chloroform Monitoring
Quarterly sampling for chloroform 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 (formerly TW4-15)
MW-32 (formerly TW4-17)
TW4-26
Table 1 provides an overview of all wells sampled during the cunent 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 1.E.3 of the Groundwater Discharge Permit (the "GWDP"):
• The quarterly groundwater compliance monitoring wells.
• 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.
In addition, weekly and m0nthly depth to groundwater measurements were taken in MW-
4, MW-26, TW4-19, TW4-20, and TW4-4, as part of the long term pumping test for
MW-4.
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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 stmt 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 as described below. 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 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
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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.
Wells with dedicated pumps are sampled when the pump is in the pumping mode. If the
pump is not pumping at the time of sampling, it is manually switched on by the Mill
Personnel. The well is pumped for approximately 5 to 10 minutes prior to the collection
of the field parameters. Per the approved QAP, one set of parameters is collected.
Samples are collected following the measurement of one set of field parameters. The
pump is turned off and allowed to resume its timed schedule.
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.
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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.
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, 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. A copy of the kriged groundwater contour map
generated from the second quarter 2011 data is provided under Tab E.
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 third quarter chloroform contaminant
investigation are provided under Tab H of this Report. Also included under Tab Hare
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
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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")
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 QNQC are discussed in
Sections 3.4.4 through 3.4.9 below.
The analytical laboratory has provided summary reports of the analytical quality QNQC
measurements necessary to maintain conformance with National Environmental
Laboratory Accreditation Conference ("NELAC") certification and reporting protocol.
The Analytical Laboratory QNQC Summary Reports, including copies of the Mill's
Chain of Custody and Analytical Request Record forms for each set of Analytical
Results, follow the analytical results under Tab H. Results of review of the laboratory
QNQC 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 DIFB 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.
One trip blank was provided by Energy Laboratories and returned with the quarterly
chloroform monitoring samples.
Three 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 of these analyses are included with the routine analyses
under Tab H.
In addition, one DIFB, while not required by the Chloroform QAP, were collected and
analyzed for the same constituents as the well samples and rinsate blank samples.
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.
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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 prior to the
next quarter's sampling to determine the order for purging prior to sampling. Consistent
with the approved QAP, each quarterly event begins with purging of the wells from the
least affected to the most affected based on the previous quarter's data. Although purging
follows this order, the sampling order may deviate slightly from the generated list. This
practice does not affect the samples for these reasons: any wells sampled in slightly
different order had either dedicated pumps or were sampled via a disposable bailer. This
practice does not affect the quality or usability of the data as there is no cross-
contamination resulting from sampling order. DUSA intends to propose an amendment
to clarify this practice 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 1.
3.4.1 Field Data QA/QC 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
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, TW4-3, TW4-6,
TW4-7, TW4-10, TW4-11, TW4-13, TW4-14, and TW4-26. All of these wells were
pumped to dryness before two casing volumes were evacuated and as such the
requirement to purge two casing volumes does not apply. In each case, representative
samples of formation water were collected after the wells were allowed to recover.
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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 last 2 consecutive
measurements. During the third quarter 2011 sampling event, all field parameters were
stabilized within 10%.
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.
Sixteen turbidity measurements exceeded the QAP's 5 NTU goal. Of the sixteen wells,
seven wells were pumped to dryness. 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.
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 has completed
a monitoring well redevelopment program. The redevelopment report was submitted to
DRC on September 30, 2011. Redevelopment results will be discussed with DRC in an
effort to come to a consensus regarding turbidity considerations for the chloroform wells
at the Mill site.
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 I. 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 I. All samples were received within the required temperature limit.
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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 21 sets of sample results 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
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 for the sample/duplicate pairs were within the 20% RPD acceptance
limits. Results of the RPD test are provided in Tab 1.
3.4.8 Rinsate Sample Check
Rinsate blank sample checks are provided in Tab 1.
Chloroform
A review of the analytical results reported for rinsate blank samples indicated that one of
the rinsate blank samples contained chloroform. A DIFB was analyzed and was repOlted
as nondetect. A comparison of the rinsate blank sample concentration levels to the QAP
requirements -that rinsate sample concentrations be one order of magnitude lower than
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that of the actual well -indicated that the rinsate blank sample with a detection of
chloroform met this criterion.
This criterion however, is irrelevant and inappropriate for the rinsate blank sample data
collected during the chloroform 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.
Chloroform has been present in the rinsate blanks 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 blanks has been identified. It is known from EPA
studies that chloroform is frequently a byproduct of the chlorination process in potable
water supplies.
Based on the EPA documentation, DUSA believes the chloroform contamination in the
DI water is most likely the result of chlorination of the intake water used for the DI
system. Multiple sources cite the creation of chloroform as a byproduct of chlorination.
The following two sources have been attached, EPA -Basic Information about
Disinfection Byproducts in Drinking Water: Total Trihalomethanes, Haloacetic Acids,
Bromate and Chlorite; and Water Research Net -Disinfection By-Products
Trihalomethanes, in Tab N to this report. The chloroform is most likely the result of the
chlorination of the potable water at the Mill which is subsequently fed to the DI system.
The water is free of chloroform prior to chlorination, as it is tested by the Utah
Department of Health, Division of Epidemiology and Laboratory Services on a routine
basis. The chlorine added reacts with the naturally occurring organic and inorganic
materials in the water.
As discussed in the Second Quarter 2011 Chloroform report submitted on September 1,
2011, the low level chloroform contamination in the rinsate blank is due to the addition of
a second 55-gallon rinse with DI water added to the rinsate process to minimize nitrate
contamination in the nitrate and chloroform sampling programs. The addition of this step
eliminated nitrate contamination, but "stressed" the DI system due to increase in volume
of water required for the second rinse. The DI system is designed to remove the
chloroform. However, due to the stress on the system resulting from the large volume of
DI water processed through the system during the chloroform sampling events to
accommodate a second rinse, breakthrough appears to occur towards the end of the
sampling event. The one rinsate sample with chloroform contamination from the third
quarter 2011 was the last rinsate sample taken for this sampling event. This sample was
collected from water produced at the end of a DI filter run when the system was
"stressed", which caused the low level detection in the rinsate blank. Removal of
chloroform and other organics is accomplished by the "activated carbon" portion of the
DI system. The performance of this portion of the Dr 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 becomes "stressed" and performance decreases resulting in chloroform
"breakthrou gh".
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Corrective actions for this issue are described in Section 6.1.
3.4.9 Other Laboratory QAlQC
Section 9.2 of the QAP requires that the laboratory's QAJQC Manager check the
following items in developing data reports: (1) sample preparation information is correct
and complete, (2) analysis information is correct and complete, (3) appropriate analytical
laboratory procedures are followed, (4) analytical results are correct and complete, (5)
QC samples are within established control limits, (6) blanks are within QC limits, (7)
special sample preparation and analytical requirements have been met, and (8)
documentation is complete. In addition to other laboratory checks described above,
DUSA's QA Manager rechecks QC samples and blanks (items (5) and (6)) to confirm
that the percent recovery for spikes and the relative percent difference for spike
duplicates are within the method-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 QAJQC results met these specified acceptance limits except as noted below.
The QAP Section 8.1.2 requires that an MSIMSD (referred to as Duplicate Spike [Matrix
spike] in the QAP) pair be analyzed with each analytical batch. The QAP does not
specify acceptance limits for the MSIMSD pair, and the QAP does not specify that the
MS/MSD pair be prepared on DUSA samples only. Acceptance limits for MSIMSDs are
set by the laboratories. The review of the information provided by the laboratories in the
data packages verified that the QAP requirement to analyze 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
information only.
The information from the Laboratory QAJQC Summary Reports indicates that the
MSIMSDs recoveries and the associated RPDs for all quarterly chloroform samples are
within acceptable laboratory limits for all regulated compounds except as indicated in
Tab I. The recoveries, which are outside of the laboratory established acceptance limits,
do not affect the quality or usability of the data because the recoveries outside of the
acceptance limits are indicative of matrix interference. Furthermore, the nitrate sample
with MSIMSD recoveries outside of the laboratory established limit is not a Denison
sample and as such are not applicable to the Mill samples. The QAP requirement to
analyze a MSIMSD pair with each analytical batch was met and as such the data are
compliant with the QAP.
The QAP specifies that surrogate compounds shall be employed for all organic analyses,
but the QAP does not specify acceptance limits for surrogate recoveries. The analytical
data associated with the routine quarterly sampling met the requirement specified in the
QAP. The information from the Laboratory QAJQC Summary Reports indicates that the
surrogate recoveries for all quarterly chloroform samples were within acceptable
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laboratory limits for all surrogate compounds except as indicated in Tab I. Seventeen
surrogate recoveries were above the laboratory established acceptance limits or had a
high recovery, indicating 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. Furthermore, there are no QAP requirements
for surrogate recoveries.
The information 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 chloroform pumping wells are
located, in each case with hand-drawn stream tubes, depicting hydraulic capture from the
pumping.
The water level contour maps indicate that perched water flow at the site ranges from
generally southwesterly in the western portion of the site to generally southerly in the
eastern portion of the site. Perched water mounding associated with the wildlife ponds
locally changes the flow patterns. For example, northeast of the Mill site, mounding
associated with wildlife ponds results in locally northerly flow near MW-19. Flow
directions are also locally influenced by pumping at MW-4, MW-26, TW4-4, TW4-19,
and TW4-20. Significant cones of depression have formed in the vicinity of all pumping
wells except TW4-4, which began pumping in the first quarter of 2010.
Although pumping at TW4-4 has depressed the water table in the vicinity of TW4-4, the
well has apparently not been pumped long enough to have affected water levels at
adjacent wells sufficiently for a well-defined cone of depression to be evident. Changes
in water levels at wells immediately south of TW4-4 resulting from TW4-4 pumping are
likely muted because TW4-4 is located at a transition from relatively high to relatively
low permeability conditions south (downgradient) of TW4-4. The permeability of the
perched zone at TW4-6 and TW4-26 is approximately two orders of magnitude lower
than at TW4-4. Any draw down of water levels at wells immediately south of TW4-4
resulting from TW4-4 pumping is also difficult to determine because of a general, long-
term increase in water levels in this area. Water levels at TW 4-4 and TW 4-6 increased by
nearly 2.7 and 2.9 feet, respectively, between the fourth quarter of 2007 and the fourth
quarter of 2009 (just prior to TW4-4 pumping) at rates of approximately 1.2 feet/year and
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1.3 feet/year, respectively. However, the increase in water level at TW4-6 has been
reduced since the start of pumping at TW4-4 (first quarter of 2010) to approximately 0.3
feet/year suggesting that TW 4-6 is within the hydraulic influence of TW 4-4.
The lack of a well-defined cone of depression at TW4-4 is also influenced by the
persistent, apparently anomalously low water level at non-pumping well TW4-14, located
east of TW4-4 and TW4-6. For the current quarter, the water level at TW4-14 is
approximately 13 feet lower than the water level at TW4-6 and approximately 15 feet
lower than TW 4-4 even though TW 4-4 is pumping. The low water level at TW 4-14 is
considered anomalous because it appears to be downgradient of all three wells TW 4-4,
TW4-6, and TW4-26, yet there is no chloroform at TW4-14. Chloroform has apparently
migrated from TW4-4 to TW4-6 and from TW4-6 to TW4-26 which suggests that TW4-
26 is actually downgradient of TW 4-6, and TW 4-6 is actually downgradient of TW 4-4,
regardless of the flow direction implied by the low water level at TW4-14. The water
level at TW4-26 (5537.6 feet amsl) is, however, lower than water levels at adjacent wells
TW4-6 (5538.3 feet amsl), and TW4-23 (5541.9 feet amsl)
4.1.2 Comparison of Current Groundwater Contour Maps to Groundwater
Contour Maps for Previous Quarter
The groundwater contour maps for the Mill site for the second quarter of 2011, as
submitted with the Chloroform Monitoring Report for the second quarter of 2011, are
attached under Tab E.
A comparison of the water table contour maps for the third quarter of 2011 to the water
table contour maps for the previous quarter (second quarter of 2011) indicates similar
patterns of draw down related to pumping of MW-4, MW-26, 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. As discussed in Section 4.1.1, pumping
at TW4-4, which began in the first quarter of 2010, has depressed the water table near
TW 4-4, but does not yet appear to have affected water levels at adjacent wells
sufficiently for a well-defined cone of depression to be evident.
Reported increases in water levels of 6 feet occurred in new well MW-37 and of
approximately 14 feet occurred in pumping well MW-26. Reported decreases in water
levels of approximately 7 feet occurred in well TW4-3, of approximately 6 feet occurred
in pumping well MW-4, and of approximately 28 feet occurred in pumping well TW4-20.
The water level changes at the remaining pumping wells (TW 4-4 and TW 4-19) were less
than 5 feet.
Water level fluctuations at pumping wells MW-4, MW-26, 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 draw down) of approximately
28 feet occurred in well TW4-20 and the largest increase (decrease in drawdown), of
approximately 14 feet, occurred in well MW-26. The reported water level increase of 6
feet at new well MW-37 during the current quarter is likely due to recovery after
development during the previous quarter. The reported decrease in water level of
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approximately 7 feet at TW4-3 yields a water level that is similar to historic values
suggesting the previous reading (second quarter, 2011 reading) was erroneous.
4.1.3 Hydrographs
Attached under Tab Fare hydrographs 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, TW4-4, 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 down gradient 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 with the other
pumping wells, pumping TW 4-4 helps to reduce the rate of chloroform migration in
downgradient portions of the plume.
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-
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, TW4-19, and TW4-20 has
not changed significantly since the last quarter. As noted in Section 4.1.2, decreases in
water levels (increases in drawdown) of approximately 6 feet occurred at MW-4 and of
approximately 28 feet occurred at TW4-20, and an increase in water level (decrease in
drawdown) of approximately 14 feet occurred at MW-26. The increase in drawdown at
TW4-20 has increased the apparent capture zone of this well relative to other nearby
pumping wells. (The capture zone associated with TW4-20 last quarter was not
distinguishable from the larger capture zones of MW -26 and TW 4-19.) As discussed in
Section 4.1.1, TW4-4 has apparently not been pumped long enough for a well-defined
capture zone to become evident, and the draw down associated with TW 4-4 is likely less
apparent due to the low water level at TW4-14.
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Chloroform concentrations exceeding 70 !-lg/L have occurred in the past at some
locations downgradient of pumping wells (for example, at TW 4-6, located immediately
south 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 down gradient chloroform migration, and allowing natural attenuation
to be more effective, pumping at the productive, up gradient locations has a beneficial
effect on this downgradient chloroform. Pumping at TW 4-4 was implemented during the
first quarter of 2010 to improve capture in this downgradient area to the extent allowable
by the lower productivity conditions presumed to exist in this area. The beneficial effect
of pumping TW 4-4 is demonstrated by the decrease in chloroform concentrations at
TW4-6 from 1000 !-lg/L to 16 !-lg/L, and at TW4-26 from 13 !-lg/L to 2.8 !-lg/L since
pumping began at TW4-4. Concentrations at these wells have decreased substantially
even though they do not unambiguously appear to be within the hydraulic capture of
TW 4-4. As discussed in Section 4.1.1, however, the decrease in the long-term rate of
water level rise at TW 4-6 since pumping began at TW 4-4 does suggest that TW 4-6 is
within the hydraulic influence of TW4-4. Regardless of whether TW4-6 can be
demonstrated to be within hydraulic capture of TW4-4, pumping TW4-4 acts to cut off
the source of chloroform to TW4-6 and TW4-26 by the mechanisms discussed above.
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 quarter, as summarized in the
table included under Tab K, the following observations can be made:
Chloroform concentrations have increased by more than 20% in the following wells
compared to last quarter: MW-26, TW4-6, TW4-21, TW4-22, and TW4-24;
Chloroform concentrations have decreased by more than 20% in the following wells
compared to last quarter: TW4-1O, TW4-16, and TW4-19;
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Chloroform concentrations have remained within 20% in the following wells compared
to last quarter: MW-4, TW4-1, TW4-2, TW4-4, TW4-5, TW4-7, TW4-11, TW4-18,
TW4-20, and TW4-26; and
MW-32, TW4-3, TW4-8, TW4-9, TW4-12, TW4-13, TW4-14, TW4-23, and TW4-25
remained non-detect.
As indicated, chloroform concentrations at many of the wells with detected chloroform
were within 20% of the values reported for the wells during the previous quarter,
suggesting that variations are within the range typical for sampling and analytical error.
Wells MW-26, TW4-6, TW4-10, TW4-16, TW4-19, TW4-21, TW4-22, and TW4-24 had
changes in concentration greater than 20%. Of the latter, MW-26 and TW4-19 are
pumping wells. TW4-6 is located adjacent to pumping well TW4-4; TW4-1O and TW4-
16 are located adjacent to pumping well MW-26; TW4-21 is located adjacent to pumping
well TW4-19; and TW4-22 is located adjacent to pumping well TW4-20. Fluctuations in
concentrations at pumping wells and wells adjacent to pumping wells likely result in pari
from changes in pumping. Although the change in concentration at TW4-24 was greater
than 20%, the increase from 1.1 to 1.7 [!g/L is likely due to analytical error because the
concentrations are close to the detection limit.
Pumping well TW4-20 had the highest detected chloroform concentration. Since the last
quarter, the chloroform concentration in TW4-20 decreased from 8,100 [!glL to 6,800
""giL, the concentration in adjacent pumping well TW4-19 decreased substantially from
4,000 ""gIL to 970 ""giL, the concentration in nearby well TW4-21 increased from 290 to
460 ""giL, and the concentration in nearby well TW4-22 increased from 210 [!glL to 450
""gIL. Wells TW4-23 and TW4-25 remained non-detect for chloroform. TW4-24, located
west of TW4-22, and TW4-25, located north of TW4-21, bound the chloroform plume to
the west and north.
The chloroform concentration in TW4-16, located immediately downgradient of the
chloroform plume, decreased from 16 ""gIL to 9.2 ""gIL. Slight expansion and contraction
of the chloroform plume boundaries in response to changes in up gradient pumping are
expected to impact the concentrations at TW4-16. In addition, the southernmost boundary
of the plume remains between TW 4-4 and TW 4-6 (located just north of southernmost
temporary well TW4-26).
The chloroform concentration in TW4-6 increased from 9.6 [!g/L to 16 ""gIL. Although
the concentration increased, TW 4-6 remains outside the chloroform plume boundary.
Concentrations at TW4-6 have been on a generally downward trend since initiation of
pumping of TW4-4 in the first quarter of 2010, and have decreased from 1000 ""giL to 16
""gIL since that time. 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. TW4-6 remained
outside the chloroform plume between the second quarter of 2000 and the fourth quarter
of 2008. TW4-6 likely remained outside the chloroform plume during this time due to a
combination of 1) slow rates of downgradient chloroform migration in this area due to
low permeability conditions and the effects of upgradient chloroform removal by
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pumping, and 2) natural attenuation. Because TW4-6 is again outside the plume
boundary, TW4-6 and TW4-23 bound the chloroform plume to the south.
The slow rate of chloroform migration in the vicinity of TW4-6 is demonstrated by
comparing the rate of increase in chloroform at this well to the rate of increase in the
nearest up gradient well TW 4-4. Concentrations at TW 4-4 increased from non-detect to
more than 2,200 !!gIL within only 2 quarters whereas 16 quarters were required for
concentrations in TW4-6 to increase from non-detect to only 81 !!gIL. This behavior is
consistent with hydraulic tests performed at TW4-4, TW4-6, and TW4-26 during the
third quarter of 2010 that indicate a nearly two order of magnitude decrease in
permeability downgradient of TW 4-4. Chloroform migration rates in the vicinity of
recently installed well TW4-26 are also expected to be relatively low due to upgradient
pumping and low permeability conditions.
5.0 LONG TERM PUMP TEST AT MW-4, 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, 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 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 Chem, Inc. were on site to conduct the first phase of the pump test and collect
the initial two days of monitoring data for MW-4. 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, 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:
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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
Beginning August 16, 2003, the frequency of water level measurements from MW-4,
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, MW-26, TW4-19, TW4-20 and TW4-4 and the 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 September
are recorded in the Field Data Worksheets included under Tab D.
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 85,327 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
4.2 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.
5.4.2 TW 4-19
Approximately 141,542 gallons of water were pumped from TW4-19 during the quarter.
The average pumping rate from TW4-19, when the pump was pumping, was
approximately 13.9 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 TW4-19 was directly transferred to the Cell 1 evaporation pond
through a pipeline installed specifically for that purpose.
It was noted by Field Personnel on September 29, 2011 that the flow meter in TW4-19
was damaged during routine maintenence. The flow meter was replaced on September
29, 2011 within 24 hours. Field Personnel collected measurements the following week as
scheduled.
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5.4.3 MW-26
Approximately 65,618 gallons of water were pumped from MW-26 during the quarter.
The average flow rate from MW-26, when the pump was pumping, was approximately
6.3 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 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 72,311 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
9.6 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 97,535 gallons were pumped from TW4-4 during the quarter. The
average flow rate, when the pump was pumping, was 9.9 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.
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 580.6 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 Chloroform Levels
Identification and Definition of the Problem
Rinsate Chloroform Levels
Chloroform has been present in the rinsate blanks in previous quarters and was addressed
through a change in the decontamination procedures and rinsate blank frequency
suggested by UDEQ personnel. To address the nitrate contamination in the nitrate and
chloroform sampling programs, an additional rinse with 55-gallons of Dr water has been
added to the decontamination process. The added 55-gallons of Dr water per
decontamination of the portable pump has caused chloroform to reappear in the rinsate
blanks. DUSA believes that the potential source for the chloroform present in the rinsate
blanks appears to be related to the increasing volume of Dr water used in the rinsate
process due to the second 55-gallon rinse with Dr water. The chloroform present in the
rinsate blanks is most likely present in the Dr water and is not the result of inadequate
decontamination of the purging pump. The chloroform contamination in the Dr water is
most likely the result of chlorination of the intake water used for the Dr system.
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 Chloroform Levels
As discussed above, chloroform is most likely entering the rinsate blanks from the
chlorination of the potable water supply used as a feed to the Dr system. The Dr system is
showing signs of breakthrough at times of high usage. To address the issue, the QA
manager is working with mill staff evaluating the best approach to implement upgrades to
the Dr system to ensure its ability to support the high volume of Dr water needed for the
rinsate process.
20
N:IRequired RcporlslChlorofonn Quarlerly Moniloring RcpOltl2011 Q312011_Q3Chloroform_RcporuexLdoc
Determination of a Corrective Action to Eliminate the Problem
Rinsate Blank Sample Chloroform Levels
The chloroform contamination in the DI water is most likely the result of chlorination of
the intake water used for the DI system. Based on low level detections this quarter, the
additional of a second DI rinse in the process is "stressing" the system and causing
chloroform contamination. By upgrading the system, it will be able to support the high
volume of DI water being pumped through the system.
Assigning and Accepting Responsibility for Implementing the Corrective Action
Rinsate Blank Sample Chloroform 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 Chloroform Levels
Chloroform sources will be removed after the DI system is upgraded to support the high
volume of DI water in the system during the rinsate process. Analysis of the DI system
by DUSA is underway to determine the best design for the system upgrades. Data
collected after the completion of the system upgrades will determine if any fUlther action
is necessary to eliminate rinsate contamination.
Verifying That the Corrective Action Has Eliminated the Problem
Verification that chloroform contamination has been eliminated will occur upon
completion of the system upgrades and receipt of at least the two quarters of data. If
chloroform contamination persists then additional sources will be researched and the
investigation will continue.
6.2 Assessment of Previous Quarter's Corrective Actions
The second quarter 2011 report identified corrective actions for chloroform
contamination in the rinsate blank samples. Chloroform contamination was present in the
third quarter 2011 sampling event, confirming the source of the issue being the DI
system's inability to support the volume of DI water necessary for the rinsate process.
Evaluation and implementation of system upgrades are underway and will eliminate the
chloroform contamination once the upgrades are complete.
7.0 CONCLUSIONS AND RECOMMENDATIONS
The water level contour maps for the third quarter, 2011 indicate that effective capture of
water containing high chloroform concentrations is occurring in the vicinity of pumping
wells MW-4, MW-26, TW4-19, and TW4-20. TW4-4 has apparently not been pumped
long enough for a well-defined capture zone to become evident. Furthermore, the capture
21
N:IRequircd ReportslChloroform Quarterly Monitoring Reportl2011 Q312011_Q3Chloroform_Reporuext.doc
zone associated with TW 4-4 may be less apparent because of the low water level at
adjacent well TW4-14. However, the decrease in chloroform concentrations at TW4-6
(located down gradient of TW4-4)since the fourth quarter of 2009 is likely related to
TW 4-4 pumping.
Third quarter, 2011 chloroform concentrations at many of the wells with detected
chloroform were within 20% of the values reported during the previous qmuter,
suggesting that variations are within the range typical for sampling and analytical error.
Changes in concentration greater than 20% occurred in wells MW-26, TW4-6, TW4-1O,
TW4-16, TW4-19, TW4-21, TW4-22, and TW4-24; the concentration in well TW4-24
increased slightly from 1.1 !!g/L to 1.7 !!g/L.
Of the wells showing changes in concentration greater than 20%, MW-26, and TW4-19
are pumping wells. TW4-6 is located adjacent to pumping well TW4-4; TW4-1O and
TW4-16 are located adjacent to pumping well MW-26; TW4-21 is located adjacent to
pumping well TW4-19; and TW4-22 is located adjacent to pumping well TW4-20.
Although the change in concentration at TW4-24 was greater than 20%, the increase from
1.1 to 1.7 !!glL is likely due to analytical error because the concentrations are close to the
detection limit. Fluctuations in concentrations at pumping wells and wells adjacent to
pumping wells likely result in part from changes in pumping. Between the current and
previous quarters, the concentration in TW4-26, which is the most down gradient
temporary well, decreased slightly from 2.9 !!glL to 2.8 !!glL.
The highest chloroform concentration (6,800 !!glL) was detected at pumping well TW4-
20. Between the current and previous quarters, the chloroform concentration in TW4-20
decreased from 8,100 !!g/L to 6,800 !!glL, the concentration in adjacent pumping well
TW4-19 decreased from 4,000 !!glL to 970 !!g/L, the concentration in nearby well TW4-
21 increased from 290 to 460 !!glL, and the concentration in nearby well TW4-22
increased from 210 !!glL to 450 !!glL 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 TW4-20 and nearby wells. Regardless of these
measured fluctuations in chloroform concentrations, sampling of temporary wells TW 4-
24 (located west of TW4-22) 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 TW4-25, and was detected at a concentration of
1.7 !!g/L at TW4-24.
The chloroform concentration at well TW4-6 increased from 9.6 !!glL to 16 !!glL. This
well has been outside the chloroform plume boundary since the fourth quarter of 2010. In
the past, TW 4-6 has been both within and outside the plume. From the first quarter of
2009 through the fourth quarter of 2010, TW4-6 was within the plume. Prior to that time,
between the time of installation in the second quarter of 2000 and the fourth quarter of
2008, TW 4-6 was outside the plume. Although fluctuations in concentrations have
occurred, this well likely remained outside the plume between installation in 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 upgradient
chloroform removal by pumping, and 2) natural attenuation. The decreases in
22
N:IRequircd ReportslChloro[orm Quarterly Monitoring Rcportl20 II Q3120 Il_Q3Chloro[oml_RcporuexLdoc
concentrations at TW 4-6 since the fourth quarter of 2009 are likely the result of
up gradient pumping, in particular pumping at adjacent well TW4-4 (which commenced
in the first quarter of 2010). Chloroform remained non-detect at downgradient temporary
well TW4-23. TW4-23 and TW4-6 (with a chloroform concentration of 16 !!glL) bound
the chloroform plume to the south.
Continued pumping of MW-4, MW-26, TW4-19, and TW4-20 is recommended.
Pumping these wells, regardless of any short term fluctuations in concentrations detected
at the wells (such as at TW4-20), helps to reduce downgradient chloroform migration by
removing chloroform mass and reducing average hydraulic gradients, thereby allowing
natural attenuation to be more effective. 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. The general decrease in
chloroform concentrations at TW4-6 from 1000 !!glL to 16 !!glL since the first quarter of
2010 is likely related to pumping at TW4-4. The decrease in the long-term rate of water
level rise at TW4-6 since TW4-4 pumping began, which suggests that TW4-6 is within
the hydraulic influence of TW4-4, is consistent with the decrease in chloroform
concentrations at TW 4-6.
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.
23
N:IRcquircd RcportslChloroform Quarterly Monitoring RcpOltl20 II Q3120 II_Q3ChlorofomU~cporuexl.doc
9.0 SIGNATURE AND CERTIFICATION
This document was prepared by Denison Mines (USA) Corp. on November 28,2011.
DENISON MINES (USA) CORP.
Vice President, Regulatory Affairs and Counsel
24
N:IRcquircd RcportslChloroform Quarterly Monitoring Rcportl2011 Q312011_Q3Chloroforn'-'~eporuex(.doc
Certification:
I certify, under penalty of law, that this document and all attachments were
prepared under my direction or supervision in accordance with a system designed to
assure that qualified personnel properly gather and evaluate the information submitted.
Based on my inquiry of the person or persons who manage the system, or those persons
directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that there are
significant penalties for submitting false information, including the possibility of fine and
nt fo nowing violations.
Vice Presid nt, Regulatory Affairs and Counsel
Denison Mines (USA) Corp.
25
N:IReqllired ReportslChlorororm Quarterly Monitoring Reportl20 II Q3120 II_Q3Chlorororm_Rcporucxt.doc
Tables
Table 1: Summary of Well Sampling for the Period
, :~/I'~' 'i,' O,);!'..", . 'I" "t Y ". "! ,(. ,;,'1, .'. .,
';"
,
, 'D'att~ of IJal)(Rtj)~rt.'! ' .,. ,j " t· Sampl~ Date ' "'it t1I . ;,. ': ,i· Well . I' ",
MW-4 8117/2011 9/61201 1
TW4-1 8118/2011 9/612011
TW4-2 8117/2011 9/612011
TW4-3 811612011 9/612011
TW4-3R 811512011 9/6/2011
TW4-4 811712011 9/612011
TW4-5 811712011 9/612011
TW4-6 81171201 1 9/612011
TW4-7 8118/2011 9/612011
TW4-7R 811712011 9/6/2011
TW4-8 8116/2011 9/612011
TW4-9 811612011 9/612011
TW4-10 811712011 9/6/2011
TW4-11 811712011 9/612011
TW4-12 811612011 9/6/2011
TW4-13 8/16/2011 9/612011
TW4-14 8/16/2011 9/612011
TW4-15 (MW-26) #N/A 9/612011
TW4-16 8/17/2011 9/612011
MW-32 811612011 9/612011
TW4-18 811712011 9/612011
TW4-19 811712011 9/612011
TW4-20 8/17/2011 9/612011
TW4-21 8/1712011 9/612011
TW4-22 8/17/2011 9/6/2011
TW4-23 8116/2011 9/612011
TW4-24 8/17/2011 9/612011
TW4-24R 8116/2011 9/612011
TW4-25 8116/2011 9/612011
TW4-26 811712011 9/6/2011
TW4-60 811712011 9/612011
TW4-65 811612011 9/6/2011
TW4-70 8117/2011 9/612011
All sample locations were sampled for Chloroform, Carbon Tetrachloride, Chloromethane, Methylene ChlOlide, Chloride
and Nitrogen
"R" following a well number deisgnates a tinsate sample collected prior to purging of the well of that number.
TW4-60 is a DI Field Blank, TW4-65 is a duplicate of TW4-23, and TW4-70 is a duplicate ofTW4-l6,
Highlighted wells are continuously pumped,
Table 2 Chloroform Mass Removal Per Well Per Quarter
I ::f~:." . " " 'I iik, ,~\: " l'W4.:15 (MW.26) TW4·19 TW4·20 ' TW4·4, ,. ,"" I, " II ,.
J\:lW ~ll (lb,s:j; I.'e ", ~i,\(lbs\.) ,Ji' ' . ,(Ibs.), .' ". . I, (~bs.) I Quarter 'f otalS"(lbs.), I:JI¥\ I!, .," Quar~~r ' ,'" . if ,'\' )t'" ,"JIbs.) .,'Ct, ' tl I) 'I ' /£ ' I .j........ ,
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
Q12008 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
Q12011 l.1 0.2 12.9 9.6 1.1 24.9
Q22011 1.2 0.8 5.3 4.6 1.1 13.1
Q32011 1.2 1.0 4.7 4.9 1.4 13.2
Well Totals (pounds) 70.6 23.0 279.5 199.9 7.6 580.6
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
1-1 Field Data QAlQC 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 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 N Disinfection byproducts -Trihalomethanes
Tab A
Site Plan and Perched Well Locations White Mesa Site
..?-:;::::-
9 7
I!.lf III II
II
II ~I
II
I
II
II
II
II
II
II il
II
I
32
~ MVv-21
II ,I
\1
\\
~
PROPERTY
BOUNDARY
II
{(
II
II
II
II
II
II
II
'I
MW-01 •
MW-18 •
~S
~
~ TWN-18
TWN-7
~ TWN-3
~ TWN-S
~
TWN-8
~ TWN-1S
~
TWN-10
~
TWN-9
PIEZ-1 .,
MW-19 •
.,
~ ~ TWN-11 TWN-12
~
~ TWN-14
d -...;;:: M~27 /rWpJ) Tb~-4
MW-D2 •
Mw-bs
-¢-,
MW-2
CELL NO.1
CELL NO.2
MW~ h MW~3 __ Mll\f-34 M.\t!'-
-¢--¢--~ ."-t----M
MW-37
MW-03 •
MW-17 •
33
PIEZ-3 .,
lOTW4-1IbTW4-11 OTW4-13
TW4-7~~-8 M -32 OTW4-1 •
OTW4-40TW4_14
TW4-23 OTW4-S
°
PIEZ-4 .,
PI EZ-S .,
OTW4-2S
h~'::::=--=--6
7
--==--.=-.==:-'
/,~7
/'
T378
T38S
~ MW-20 ~ .
~ I ., \ j ~\ ~ i11'~ ~~.~~~~ ~~ 4~~~~~~4_~~~~~~~~~~~7!
"'--=-
N
1
L...:.--. _ ! MW-22 • II
//
// o
MW-20 • TW4-19
SCALE IN FEET
EXPLANATION
perched monitoring well
o temporary perched monitoring well
PIEZ-1
~
TWN-1 <>
MW-34
-9-
MW-36
~
perched piezometer
temporary perched nitrate
monitoring well
perched monitoring well installed
August/September, 2010
perched monitoring well
installed April, 2011
3000
wildlife pond
HYDRO
GEO
CHEM, INC. APPROVED
SJS
//
//
//
//
//
//
//
//
SITE PLAN
AND PERCHED WELL LOCATIONS
WHITE MESA SITE
DATE REFERENCE
H:/718000/nov11/welloc11.srf
~ ~ o
~
~
\.
(},
\
FIGURE
A-1
• >
.,
TabB
Order of Sampling and Field Data Worksheets
,
\---o
Order of Contamination for 3rd Qua~ter 2011 Chloroform Purging Event
Previous Quarter
CfilorofOi.·m---
Well Sampletirtle Levels Rinsate date/time
TW4 .. 3
TW4-1~ "J)-.
TW4;;;13
TW4-14
MW-32
TW4-23
TW4-25
TW4-8
TW4-9
TW4-24 $1 • .,/11
TW4-26
TW4-5
TW4-6
TW4-16
TW4.:.18
--TW4-22 .
TW4-1O
TW4-21
TW4-H
TW4-7 gjlriJI
TW4-1 r,/16/11
Oit:lS
oW.!>
0(;,'\5
Df-55
67 OS
072.1
01'35
07'-15
o1Sb
OM]
0b3.b
Of,,'-i7
:SR ND ~/IS/Ii' D(;."iS
ND
ND
ND
ND 'f.,!IUII lASS
ND
ND
ND
ND .2.'1 R
1.1 S/ib!1l D6.I..\O
2.9
9
9.6
16
26
210
280
290
930 7 iZ
1200 2S/jtIJ 1o 015~q
1200
MW4 ~1i1/il I?Oli 1700
TW4-4 lS/i11il 1':'>15 1700
TW4-15 :6(1"71 II 1&50 1800
TW4-2 I£/I~/'I Ob~7 3000
TW4-19 gil?/ /I jl.\OO 4000
TW4-20 "ih7! II \21..\0 8100
TW4-60 _D_.I_. B_la_n_k __ ..... /!,.u.1..L.11u.)..:..Jl!t.....-1I..t30
TW4-65 Duplicate -~------------TW 4-70 Duplicate tf,,/ l1111 010:::'
Comments: lie-
Water
level
Well
Depth
141
101.5
102.5
93
130.6 Bladder pump
114
134.8
125
120
112.5
86
120
97.5
142
137.5 Cont. Pumping
113.5
111
121
100
120
110
124 Cont. Pumping
112 Cont. Pumping
122.5 Cont. Pumping
120
125 Cont. Pumping
106 Cont. Pumping
Name: Date: --------------------------
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
OE~~~ONI).4~-1 WHITE A~~~~~~:~~ MILL
MINES ~ FIELD DATA WORKSHEET FOR GROUND WATER
Attachment 1
~ See instruction
Description of Sampling Event: I '3 rIA Q '-"6..d~(' G h I of I) 'to( fVI ;;l.O II
Location (well name):L-1 --'-M_w_-_Ll _________ --'
Sampler Name
and initials: I 1""o.n 'I u Rol1;J~/'fH
Date and Time for Purginm g) 11/~OII and Sampling (if different) ;vIA '--~~-----~
Well Purging Equip Used:@]pump o@ bailer
Sampling Event I Q~fM"+~r~ c..hlo<o1~(M I
pH Buffer 7.0 7.0
Specific ConductanceL,..I_Q..l..Q..;...1.L.-__ ---lIIJ.MHOS/ cm
Depth to Water Before purgind '7 \.O~
Conductance (avg)
Well Pump (if other than Bennet)
Prevo Well Sampled in Sampling Event L-1 _""r_W_L.\_-_,_S ____ .....I
pH Buffer 4.0 L\.D
Well Depth(O.Olft):
Casing Volume (V)
pH of Water (avg)
4" well:~ __ O_---1I(.653h)
3" Well:. 14.YY . (.367h)
6 .57
Well Water Temp. (avg) I IS.1~ Redox Potential (Eh) 1L.....-::J..,.;.;;.13"--_-' Turbidity ...... 1 _0 __ --'
Weather Condo Ext'l Amb. Temp. DC (prior sampling event)1 30~
Time I )3oL{ I Gal. Purged I I Time I I Gal. Purged I I
Conductance I :l.Ob(;, I pH I b.S7 I Conductance I I pH I I
Temp.oC I J5 .9g I Temp.oC I I
Redox Potential Eh (m V) I 2.13 I Redox Potential Eh (mV) I I
Turbidity (NTU) I 0 I Turbidity (NTU) I I
Time I I Gal. Purged I I Time I I Gal. Purged I I
Conductance I I pH I I Conductance I I pHI I
Temp.oC I I Temp.oC I I
Redox Potential Eh (mV) I I Redox Potential Eh (mV) I I
Turbidity (NTU) I I Turbidity (NTU) I I
White Mesa Mill
Field Data Worksheet for Grouridwater 1 of2
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged L-1 __ o ___ ...J
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = .... 1 _C_} ._, __ ---'
gallon(s)
Time to evacuate two casing volumes (2V)
T=2V/Q= 1 0 1
Number of casing volumes evacuated (if other than two) D
If well evacuated to dryness, number of gallons evacuated
Name of Certified Analytical Laboratory if Other Than Energy Lab~L-_jV_J_A ______ ----,
Sample Taken Sample Vol (indicate Filtered Preservative Preservative
Type of Sample if other than as Added
y N specified below) y N Type y N
VOCs D D 3x40 mI D ~ HCL ~ D
Nutrients 1]1 D 100mI D ~ H2SO4 &1 D
Heavy Metals D D 250mI D D HN03 D D
All Other Non Radiologics D D 250mI D D No Preserv. D D,.
Gross Alpha D D 1,000 mI D D HN03 D D
Other (specify) Ll D Sample volume D rn D aI
G h \o('i~e. If preservative is used, specify
Type and Quantity of
Preservative:
Comment
~ See instruction
A'((l\)e~ 0\"\ ';)i1-G Cl.J ,~S. --rl.nl'let' tN'IQ. &~(f;f\ P"'GSt'fI-t-+or' sa.Y'1jl);~ -e\)~Y1t. 1-l>oK ae.pth to
~o-.+e(, S~t'I\?\~.5' \NU~ l:O \lec.t.eJ. o.t l305. ~G\1e'( \}Jcc, CJe.CA{. I3t>)< is ~ll eJ'
M iu: I L-e..ft-s it~ 0..-1-13D7
L-_______ --IIDo not touch this cell (SheetName)
White Mesa Mill
Fipld Data Worksheetfor Groundwater " 2 of2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
ATTACHMENT 1 OENISONIlJJ WHITE MESA URANIUM MILL
Attachment 1
~ See instruction
MINES FIELD DATA WORKSHEET FOR GROUND WATER
Description of Sampling Event: ! '3 r til G "'-0,"'\=(.(" z:: h I oc 0='\":' (M 20 \ I
Location (well name):L-! _T_W_L_\ _-_, ________ ---1
Sampler Name
and initials: 11"';. n n~"'" ~ £) 11.'0\ o.~/T If
Date and Time for PurgingJ it) J i 7 ~ 0 ) ) and Sampling (if different) I ~/ 18/:1.-01 \
Well Purging Equip Used: [][] pump or@] bailer Well Pump (if other than Bennet)
Prevo Well Sampled in Sampling Event l-rv-J L\_I
pH Buffer 7.0 7.0 pH Buffer 4.0 L\.o
Specific Conductancel..-! -----'4.....;.~_4 __ ---I!f-tMHOS/ cm Well Depth(O.Olft): 110·00
Depth to Water Before PurgingJ f>l.\. L\ b Casing Volume (V) 4" well:1 ~9.77 1(·653h)
3" Well: () (.367h) '--__ --J
Conductance (avg) '-!_2....;...':1..;....Lj...;.;;g~ ____ --J pH of Water (avg) 6.05
Well Water Temp. (avg) ! 1S.2..L Redox Potential (Eh) !I..-~_g_q __ --, Turbidity 1..-1 g_o~-----,_--,
Weather Condo Ext'l Amb. Temp. O( (prior sampling event)1 !:I...!..j fI
Time ! Oq~ I Gal. Purged I ED I Time I OQ5b I Gal. Purged I bQ I
Conductance I ~S) I pH I 6.Cf1 I Conductance IoU.. Y-b I pH Ib'oS I
Temp.oC I is ·'3" 1 Temp.oC 1 [5·2:4 1
Redox Potential Eh (mV) 1 :51 \ 1 Redox Potential Eh (m V) I '3:& 7 1
Turbidity (NTU) 1 L.\O I 1 Turbidity (NTU) 1400 I
Time 1 ()~.5 7 1 Gal. Purged 1 11 1 Time 1 DqSg 1 Gal. Purged I " ff 1
Conductance I ~qg 1 pH 1 G·05 1 Conductance 1.2.2.47 1 pH 1 b.b3 1
Temp.oC 1 \5.::5 1 Temp.oC 1 1~·2.0 1
Redox Potential Eh (mV) I 3~1 1 Redox Potential Eh (mV) 1 :3 71 1
Turbidity (NTU) 1 y\!) 1 Turbidity (NTU) I Cll7 1
White Mesa Mill
Field Data Worksheet for Groundwater" 1 of 2
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged ..... 1 ....!::f>:....t::f!~ __ ---I
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = ..... 1 _'_I __ ----l
gallon(s)
Time to evacuate two casing volumes (2V)
T=2V/Q= 1 S.!..ll 1
Number of casing volumes evacuated (if other than two)
If well evacuated to dryness, number of gallons evacuated
Name of Certified Analytical Laboratory if Other Than Energy LablL.....;.,;v_/_~=--______ ......I
Sample Taken Sample Vol (indicate Filtered Preservati ve Preservative
Type of Sample if other than as Type Added
y N specified below) y N Y N
VOCs ~ 0 3x40 mI 0 ~ HCL ~ 0
Nutrients III 0 lOOmI 0 ~ H2SO4 I)g 0
Heavy Metals 0 0 250 mI 0 0 HN03 0 0
All Other Non Radiologics 0 0 250ml D · 0 No Preserv. 0 0
Gross Alpha 0 0 1,000 mI 0 0 HN03 0 0
Other (specify) 5!1 0 Sample volume 0 @ 0 ~
c::-h \ 0,', c\ ( If preservative is used, specify
Type and Quantity of
Preservati ve:
Comment
~ See instruction
A'(r;\lC::~ on si+~ o.:r OqL..\b.--ro.t'\f\d c...n~ G-o.«;f\ pa.s<=I'\t--to pv.r~'C -rwUj~I . f\J.<~t be~o.l'\
"J O'\5D. r W"~a \>.)<u for " +ot .. 1 C>f '6 I"li n",tes. v,) .. -h, W"S J.,A~
\,..)11-~ ~otr\(. ~;rt~ .?C'A/f)(:,I-c~. ?\A(~r €Y1Jeck ~-t bC!S.8'. D-cpt-h 1-D water \.0<0
\Ol.l~. Le·r\-SIte., etY i003. Arr;-Jed .. 01\ ~JT~&<..} Of,LJI. ~""<:r,.,,,4 o-CA.rr,il p,...e~",(a 1-0
(,.DlleG+ ~Mplc~. D1!pth to v.x...+er WtA~ bY.LJ! $oq~1p}t!> we('~ b",:I~&l Ai-Of.'1J. L08-$1+<' 1iI.-t Qb5D
'--_______ -'IDo not touch this cell (SheetName)
White Mesa Mill
Field Data Worksheet for Groundwater 20n
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
ATTACHMENT 1
WHITE MESA URANIUM MILL
Attachment 1
~ See instruction
FIELD DATA WORKSHEET FOR GROUND WATER
Description of Sampling Event:
Sampler Name
and initials: fi4.t1I1U j.OJo 11 ,()~ Location (well name):trL.._W_Y_-_:l.. _________ ---'
Date and Time for PurgingJL....:::g~J..;..17;..:/....::;~.;;:..O_I_' ____ -J and Sampling (if different) "6/lg/:;'OJ J
Well Purging Equip Used:OOpump o@ bailer Well Pump (if other than Bennet)
Sampling Event I GI\UA r1ed.i c:.h lo .... o-torrVl Prevo Well Sampled in Sampling Event L..I_TW __ \..._I-_I _____ --'
pH Buffer 7.0 7.0 pH Buffer 4.0 LI.O
Specific Conductance'-l_q.o...:~'_q ___ ___JIf-tMHOS/ cm Well Depth(O.Olft): I l~O.oo
Depth to Water Before Purgingj b 7 .1...\ ~ 4" well:l .3y,;z.Q 1(·653h)
3" Well: 0 (.367h) 1....-___ --'
Casing Volume (V)
Conductance (avg) pH of Water (avg)
Well Water Temp. (avg) \b.~O Redox Potential (Eh) I t..j 03 Turbidity 1I--:-ll:....;;D __ --,
Weather Condo Ext'l Amb. Temp. O( (prior sampling event)1 :l.,o
Time I IO'3g I Gal. Purged I ]7 I Time I I Gal. Purged I I
Conductance 1 30bg I pH I b.'-\D I Conductance I I pHI I
Temp. DC I 1C:.~o I Temp. DC I I
Redox Potential Eh (m V) I LJQ3 I Redox Potential Eh (mV) I I
Turbidity (NTU) I " D I Turbidity (NTU) I I
Time I I Gal. Purged I I Time I I Gal. Purged I I
Conductance I I pHI I Conductance I I pHI I
Temp. DC I I Temp. DC I I
Redox Potential Eh (m V) I I Redox Potential Eh (m V) I I
Turbidity (NTU) I I Turbidity (NTU) I I
White Mesa Mill
Field Data Worksheet for Groundwater .. 1 of2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged 1 '-_7_7 ___ ----'
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = ,-I _'_' __ ---'
gallon(s)
Time to evacuate two casing volumes (2V)
T=2V/Q= 1 ~.;(3 1
Number of casing volumes evacuated (if other than two)
If well evacuated to dryness, number of gallons evacuated 77
Name of Certified Analytical Laboratory if Other Than Energy Lab~L...~_'/4"'::"-______ -J
Sample Taken Sample Vol (indicate Filtered Preservative Preservative
Type of Sample if other than as Added
y N specified below) y N Type y
VOCs ~ 0 3x40 rnl 0 ~ HCL ~
Nutrients tB 0 100rnl 0 ~ H2SO4 ~
Heavy Metals 0 0 250 rnl 0 0 HN03 0
All Other Non Radiologies 0 0 250 rnl 0 0 No Preserv. 0
Gross Alpha 0 0 1,000 rnl 0 0 HN03 0
Other (specify) Ttl 0 Sample volume 0 ~ 0
G h \ bf' -I J e:-If preservative is used, specify
Type and Quantity of
Preservative:
Comment
~ See instruction
A(ri\le~ on site tA1-10.2.7. I~nner ~ntA 6-Mr~n ?re.seJ\f-+0 ?1..4~<" T~I...I-"<'. 'P"'I"~(.. bCj~1\ ~t
Pv,.r~c\ v:>e\\ ro(" r;... -Yo+~l of 7 (f)il'lv--res . P\J,.(~~{~ well ch~l. \.)o..+ct' Wc..~ <A:rtJ·
?v.r~<. e.n~eA f..1 1038. L~++ SI'1-! ~+ loL13· /'rr(:"J-e.~on s,,-\-,; CA.1-obSD. ~~I1-C"" ~ntif
&",(ri" ?rc.s.<..Y\t k ~ollt:(,i-.f,t..rVlpl~.>. Pcp1-~ to 'v0o-.1-C( IN~ b 7.5:2,.
SV-.W)p\e.) ~e('e.. k~'ecl Q\.t-ObS 7. Le.~.$ ;-rc li\.t 07 DO
'--________ ..... IDo not touch this cell (SheetName)
White Mesa Mill
Field Data Worksheet for Groundwater
1031
N
0
0
0
0
0
C!l
2 of
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
E~i~~~~ l ~'IELD DA~:~~::;~~~~f~R~~D WATER Attachment 1
~ See instruction
Description of Sampling Event: 13ril Q",().("1-c:r G)')o('ofO()'V"'
Location (well name): ..... I '_\J_1......:..1 _-::::::.3'--________ ---'
Sampler Name
and initials: I-r;:nne(" H6Jl,·d4.!1)rH
Date and Time for PurgingJ ~/'51;J..O J I
Well Purging Equip Used: IT!] pump or@] bailer
Sampling Event 1 Q \kIM ta ~ G ~ 10 (of'r>. fV\
pH Buffer 7.0 7.0
Specific Conductance ..... 1 _'I..:....qwq'--__ .....JI ""MHOS/ cm
Depth to Water Before PurgingJ '-\ q .':)2)
Conductance (avg) 1431
and Sampling (if different) 1 8; J (;'/.20 J I
Well Pump (if other than Bennet)
Prevo Well Sampled in Sampling Event I Tw Y -3 R
pH Buffer 4.0 LJ.O
Well Depth(O.Olft): 1 \l.j1.00
Casing Volume (V)
pH of Water (avg)
4" well:I .54 .zy 1(·653h)
3" Well: ..... , --"'0 __ --'. (.367h)
Well Water Temp. (avg) 1 \5.1 Y Redox Potential (Eh) ..... 1 _l..);....LI'-"\_---' Turbidity ..... 1 ~_J. ...;;.,5_----l
Weather Condo Ext" Amb. Temp. DC (prior sampling event)1 11i>
Time l o~oC\ I Gal. Purged I q4 I Time I I Gal. Purged I I
Conductance 1 1~31 I pH 16.'-\7 I Conductance I 1 pH I I
Temp.oC IIS.19 1 Temp.oC I I
Redox Potential Eh (mV) 1 ggl 1 Redox Potential Eh (mV) I I
Turbidity (NTU) 1 :;l.1·S 1 Turbidity (NTU) I I
Time I 1 Gal. Purged 1 I Time I I Gal. Purged I I
Conductance I 1 pH I I Conductance 1 I pH I I
Temp.oC I I Temp.oC 1 I
Redox Potential Eh (mV) I I Redox Potential Eh (mV) I I
Turbidity (NTU) I I Turbidity (NTU) 1 I
White Mesa Mill
Field Data Worksheet for Groundwater 1 of 2
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged 1L...-...l4wq ___ ----I
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = 10-1 _'....:....1 __ ---'
gallon(s)
Time to evacuate two casing volumes (2V)
T=2V/Q= 1 IO.gg 1
Number of casing volumes evacuated (if other than two) I I.bS
If well evacuated to dryness, number of gallons evacuated 141
Name of Certified Analytical Laboratory if Other Than Energy Lab~L......:.;..J~:I...L..'AL-_____ ----I
Sample Taken Sample Vol (indicate Filtered Preservative Preservati ve
Type of Sample if other than as Added
y N specified below) Y N Type y N
VOCs rn 0 3x40 ml 0 ~ HCL ~ 0
Nutrients ~ 0 100ml 0 ~ H2SO4 91 0
Heavy Metals 0 0 250ml 0 0 HN03 0 0
All Other Non Radiologies 0 [] 250ml 0 0 No Preserv. 0 0
Gross Alpha 0 0 1,000 ml 0 0 HN03 0 0
Other (specify) r:iI 0 Sample volume 0 [3' 0 []
;,
L-hlo(,'a t If preservative is used, specify
Type and Quantity of
Preservati ve:
See instruction
Comment
L-.-________ -IIDo not touch this cell (SheetName)
White Mesa Mill
HiM Data Workshp.p.t for Groundwater .' 2 of 2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
r:~iS;E~Ij~ 11 FIELD DA~~~F§l~~~~~~R~~~D WATER Attachment 1
~ See instruction
Description of Sampling Event: 13 riK Gv.o-rl-e(" Go\-! 101"0+01"1"1 ;tOil
Location (well name):L...1 T_W---=~~-...;:3:;.-R.~ ________ --I
Sampler Name
and initials: l~nf)G(" Holl;J~~.l-rH
Date and Time for Purgin~,-,g",J--,t;;:;...usJ 2=-0_11 ____ --' and Sampling (if different) AliA ~~~-~------'
Well Purging Equip Used:@Jpump o@ bailer
pH Buffer 7.0 7 .0
Specific Conductance .... 1 _'i...:..q..:...~-,--__ --,If.lMHOS/ cm
Depth to Water Before Purgin~L._O=---_----I
Conductance (avg) 3 .4
'----~-------'
Well Pump (if other than Bennet)
Prevo Well Sampled in Sampling Event .... I _~_:/,_;tt ______ ---,
pH Buffer 4.0 4 .0
Well Depth(O.Olft): IL-D ____ ...J
Casing Volume (V)
pH of Water (avg)
4" well:ll--o~_--I1 (.653h)
3" Well:. 0 .(.367h)
7.o}
Well Water Temp. (avg) \G\.) ~ Redox Potential (Eh) ...... 1 ....;;;..3=o-"'X_---' TurbiditYL.1 ..;;..0 __ ---'
Weather Condo Ext'l Amb. Temp. DC (prior sampling event)1 )7()
Time 1 b6'-l3 I Gal. Purged I I ~ 0 I Time 1 I Gal. Purged I I
Conductance 1 3.C1 I pHI 7 .01 I Conductance I I pH I I
Temp.oC 1\9 .1:t I Temp.oC I I
Redox Potential Eh (m V) I ~;Sg I Redox Potential Eh (mV) I I
Turbidity (NTU) I Q I Turbidity (NTU) I I
Time I I Gal. Purged I I Time I I Gal. Purged I I
Conductance I I pHI I Conductance I I pH I I
Temp.oC I I Temp.oC I I
Redox Potential Eh (mV) I I Redox Potential Eh (mV) I I
Turbidity (NTU) I I Turbidity (NTU) I I
White Mesa Mill
Field Data Worksheet"for Groundwater 1 of2
MiII-Groundwater Discharge Permit Date: 03/22/2010 Rev, 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged .... 1 ....,:2.:.;:.0_0-'--__ ---'
Pumping Rate Calculation
Flow Rate (Q), in gpm,
S/60 = 1,--,-1:.....1 __ --'
gallon(s)
Time to evacuate two casing volumes (2V)
T = 2V/Q = 1 () 1
Number of casing volumes evacuated (if other than two )1 .... _0 __ -----'
If well evacuated to dryness, number of gallons evacuated 0 L--___ ...J
Name of Certified Analytical Laboratory if Other Than Energy Lab!L..--.::;.D _______ ....J
Sample Taken Sample Vol (indicate Filtered Preservative Preservative
Type of Sample if other than as Added
y N specified below) Y N Type y
VOCs ~ 0 3x40 ml 0 0 HCL ~
Nutrients ~ 0 100ml o .'. rn H2SO4 ~
Heavy Metals 0 0 250ml 0 0 HN03 0
All Other Non Radiologics 0 0 250ml 0 0 No Preserv, 0
Gross Alpha 0 0 1,000 ml 0 0 HN03 0
Other (specify) ~ 0 Sample volume 0 Gi 0
L.h\or-; ~e If preservative is used, specify
Type and Quantity of
Preservati ve:
Comment
~ See instruction
Arr;ued on .si+~ G\t O~O. ,""rn1a o..,,~ 6-Gl;rl'f\ fr-c:s.en-t-+or ,<nSCI.+e. 'R:,,~£\h be~~17
-0:..+ Ob~. ?1,A,..~'Ca S,O Cn..ll ons of A";" wo,,+e., bQ G-,,)IoyU J.oo.f' wc..hr, /.Jo {y"JlonJ
or DI LU~+~r. R;I'\So..+<: Gflaea (""~ So..YV)plc:: GoJlec.+eJ. ~J-O~L..).s.
L-e~T ~;h .. ",1 oli5>
L--_______ ----lIDo not touch this cell (SheetName)
White Mesa Mill
Field Data Worksheet for Groundwater
N
0
0
0
0
0
t:]
2 of 2
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan {QAP}
OENISOJ)J~ [;-.-~-ATTACHMENT 1
WHITE MESA URANIUM MILL
Attachment 1
~ See instruction
MINES FIELD DATA WORKSHEET FOR GROUND WATER
Description of Sampling Event: 3("iA C;h~o.l'"ter Ch\oro+~(1"'\ ;2.01\
Location (well name):L..1 T_W_L.\_-~-'--________ -'
Sampler Name
and initials: 1-rt.\/II1u· Ai> 1I,'J~JTlf
Date and Time for PurgingjL..~_I_I_I_I_:A_o_I_J ____ --I and Sampling (if different) .IV/A L..-_______ ~
Well Purging Equip Used:I'tJ Ipump o@ bailer Well Pump (if other than Bennet)
Sampling Event IQu.CA.,k 8 c.\-'lo("o::to(W) I fJlW_L/ Prevo Well Sampled in Sampling Event 1-..-_______ ---1
pH Buffer 7.0 pH Buffer 4.0
Specific ConductanceL.1 ---.:..~q_~ ___ ----II f-tMHOS/ ern Well Depth(O.Olft): 1 11.2. .00
Depth to Water Before Purginm 6'1. 9 I 4" well:1 2 7.L18 1(·653h)
3" Well: <' (.367h) L...-___ --I
Casing Volume (V)
Conductance (avg) 2..1...\'17 pH of Water (avg)
Well Water Temp. (avg) 1 17.'31 Redox Potential (Eh) 1 ~$b Turbidity .... 1 _0 __ ----..11
Weather Condo Ext 'j Amb. Temp. O( (prior sampling event)l '30'
Time 1 lJ1q 1 Gal. Purged 1 1 Time 1 1 Gal. Purged 1 1
Conductance 1 ~:l9:Z 1 pH 1 6.32 1 Conductance 1 1 pH 1 1
Temp. DC I 17-31 I Temp. DC I I
Redox Potential Eh (m V) I :256 I Redox Potential Eh (mV) I I
Turbidity (NTU) I 0 I Turbidity (NTU) I I
Time I I Gal. Purged I I Time I I Gal. Purged I I
Conductance I I pH I I Conductance I I pH I I
Temp. DC I I Temp. DC I I
Redox Potential Eh (mV) I I Redox Potential Eh (mV) I I
Turbidity (NTU) I I Turbidity (NTU) I I
White Mesa Mill
Field Data Worksheet for Groundwater 1 of 2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged L..I __ O ___ ----'
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = 1-1 _8_"_0 __ --'
gallon(s)
Time to evacuate two casing volumes (2V)
T=2V/Q= 1 0 1
Number of casing volumes evacuated (if other than two) o
If well evacuated to dryness, number of gallons evacuated o
Name of Certified Analytical Laboratory if Other Than Energy LablL.._N_IIt ______ ----'
Sample Taken Sample Vol (indieate Filtered Preservative Preservative
Type of Sample if other than as Added
y N specified below) y N Type y
VOCs ~ D 3x40 ml D [29 HCL IZI
Nutrients rn D 100ml D ~ H2SO4 ~
Heavy Metals D D 250ml D D HN03 D
All Other Non Radiologies D D 250ml D D No Preserv. D
Gross Alpha D D 1,000 rn1 D P HN03 D
Other (specify) m D Sample volume D ~ El
Ch\c>r;~~ If preservative is used, specify
Type and Quantity of
Preservati ve:
See instruction
Comment
ihr;"e.ck on si+c:.. 0..1 1308 . -r;;nl'l~T M~ G-c;..fri'l f'r'e'scn+ ~(" SQmpJ.~ e.venf.
}oo~ ~t:f+h +0 \.Uqicr} SctW}PJc.) we('( (.ol)ec.~~ ~+ J55, wo..+cr WCAS c...leo.r .
le.f\-~i1-~ Cl\T-1318
'--________ ....IIDo not touch this cell (SheetName)
White Mesa M.ill
Field Data "Worksheet for Groundwater
N
D
D
D
D
D
~
20f 2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
ATTACHMENT 1 r:-NISON~, ~--~-~ f~.~~E~~ FIELD DATA WORKSHEET FOR GROUND WATER
WHITE MESA URANIUM MILL
Attachment 1
~ See instruction
Description of Sampling Event: 13 r 3\ Q\ACA.('+~r Ch lorl>~6('M Q.o II
Sampler Name
and initials: lj;rlYle,(' HoJhJ~/JJ} .. Location (well name):1 'VJt..\-5 ~~--~----------------~
Date and Time for Purgin~ ~ II G./:J..CJ) I and Sampling (if different) .... 1 :::..g/:.....;1..:..7~/_l}.._D,..;....II ______ --1
Well Purging Equip Used: 00 pump or@] bailer
pH Buffer 7.0
Specific Conductance .... I --!.~...:..q ...... 1 ______ --1If!MHOS/ cm
Depth to Water Before Purginm 2b. DS 1
Conductance (avg) I L.14
Well Pump (if other than Bennet) 1 6-,...v.ndJ'o.s
Prevo Well Sampled in Sampling Event I J1A .. )i1 .... ~
pH Buffer 4.0 1...).0
Well Depth(O.Olft): 1;2,.0. dc)
Casing Volume (V)
pH of Water (avg)
4" well:I ' Y 1.. 75 1(·653h)
3" Well: ...... _0 __ --'. (.367h)
Well Water Temp. (avg) 1 15.:l?.. Redox Potential (Eh) L-I 3;;;;..g;;;;..7 __ --1 TurbiditYL-1 .....,;;15;;..,.9...!..-_--1
Weather Condo Ext'l Amb. Temp. O( (prior sampling event) I '1 /)
Time 10335 I Gal. Purged I f,,, I Time I Og3~ I Gal. Purged I "1 '"1 I
Conductance I 1:b?.L} I pH I C; .;2.1 I Conductance I lb)g I pH I (;.,,1'3 I
Temp. DC I IS.;l..~ I Temp. DC I lS.~ I
Redox Potential Eh (mV) I 3QIO I Redox Potential Eh (m V) 1 38~ I
Turbidity (NTU) I 15~.1 I Turbidity (NTU) 1 1~~ .. o I
Time I O&yo I Gal. Purged I ~& I Time l og41 I Gal. Purged 111 I
Conductance 1 161~ I pH 110.<23 I Conductance I )1.;0:3 I pH It.R) I
Temp. DC I '5.~ I Temp. DC I lS.~ I
Redox Potential Eh (mV) I :!>33 I Redox Potential Eh (m V) 132> I I
Turbidity (NTU) I I~o.1 I Turbidity (NTU) I 1 Co'3·1 I
White Mesa Mill
"Field Data Worksheet for Groundwatei ,. 1 of 2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged L..I _94..:....L.. ___ ---I
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = 1-1 _..:....!..l) __ --I
gallon(s)
Time to evacuate two casing volumes (2V)
T = 2V /Q = 1 I. 54 1
Number of casing volumes evacuated (if other than two)
If well evacuated to dryness, number of gallons evacuated
Name of Certified Analytical Laboratory if Other Than Energy Lab~L.....;..jtI_/ __ ~=--_____ ---J
Sample Taken Sample Vol (indicate Filtered Preservati ve Preservative
Type of Sample if other than as Added
y N specified below) Y N Type y N
VOCs []. 0 3x40 rnl 0 [£ HCL ~ 0
Nutrients [) 0 100 rnl 0 [] H2SO4 ~ 0
Heavy Metals 0 0 250 rnl 0 0 HN03 0 0
All Other Non Radiologies 0 0 250ml 0 0 No Preserv. 0 []
Gross Alpha 0 0 1,000 rnl 0 0 RN03 0 0
Other (specify) CiI 0 Sample volume 0 I:S 0 6)
Ch\o(';c\(. If preservative is used, specify
Type and Quantity of
Preserv ati ve:
Comment
~ See instruction
A(li\l~6." ()(I.s\t~ 0..1-03:;"7. -r;...nnec q()~ &~(("fl pt"~ent +0 'F"'f'j<-"""fWy .... s. P\A(,~~ btJ~n g..1-
og3;2.. fv..(~-e;o. \).)dl-tor 0\ )-oto.l ~ "t l'Vl itllAte.S, ~t\+er stlA.rte~ O\A.to-.. M;/ku.. wb.;+c. huI+-
cleMe'q. ?\Ar~c.. ~l1de~ c?.t 08111. D<p+-~ 10 Wodc.r ~fhr p\A~~ ~o..~ 5(,..YI.'-J Lf!-tt .5lfe 0.-1-O&'~
Arr;'Jd, on ~I+C. 01.+ ObllO. I~"n<.r CA"tA. c;.."I(r :" ? rc~"Cn} +1> <:o)Jed-.s1A;vJp)-e~. O~ p+h 17> W&l."hr
S&\Mpk.s vJ~(~ bG\;l<~ O\t ObY.5. Le+-t ..sih·~-:t Ob.50.
L...-________ ..... IDo not touch this cell (SheetName)
White Mesa Mill
Field Data Workshe'et for Groundwater 2 6f2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
ATTACHMENT 1 5ENISOJ)~~ WHITE MESA URANIUM MILL
Attachment 1
~ See instruction
MINES FIELD DATA WORKSHEET FOR GROUND WATER , . .' --..-...
Description of Sampling Event: 1 '3 rb\ Q \.lo..da to: h I or D'f'D( fI') ;;;2.0 II
Location (well name):
..... -r_W_'-l_-_.b _________ ----'
Sampler Name
and initials: I-ro.nner HO II,GJI~ITII
Date and Time for Purgin~ ...... ~:;..;./_I_~..:.../;;.._C_)I ____ ......J and Sampling (if different) 1 &1)7/ /).() I}
Well Purging Equip Used: I][J pump or@] bailer Well Pump (if other than Bennet) 1 GrlAl'lc.l:fOs
Sampling Event 1 Qv.(.t.rh.r1.!:! G), 'o("~orlV"\ Prevo Well Sampled in Sampling Event ..... 1_T_W_I1_-_S ____ ---'
pH Buffer 7.0 1.0
Specific Conductance ..... I.....:9_q....;..~ ___ __'I!-lMHOS/ cm
Depth to Water Before Purgingj 70.3'1
Conductance (avg) LJ 173 '--~~~ ____ ......J
pH Buffer 4.0 t4.D
Well Depth(O.Olft): ...... 1 q.:.....'_. ~_O __ ----'
Casing Volume (V)
pH of Water (avg)
4" well:l 17 .73 1(·653h)
3 " Well:...... _D __ ----'J367h)
Well Water Temp. (avg) IS. b~ Redox Potential (Eh) 1-1 ..::3~(;;.;..~ __ ....J Turbidity I ...... Y..;...:2_0 __ ......J
Weather Condo Ext'l Amb . Temp. DC (prior sampling event)1 :;;lOo
Time 1 0'12.'1 I Gal. Purged I :l.7 I Time I I Gal. Purged I I
Conductance I L\l]t> I pHI b-l..b I Conductance I I pHI I
Temp.oC 1 15·62> I Temp.oC I I
Redox Potential Eh (m V) I Jb~ I Redox Potential Eh (mV) I I
Turbidity (NTU) I \..l~o I Turbidity (NTU) I )
Time I I Gal. Purged I I Time I I Gal. Purged I I
Conductance I I pH I I Conductance I I pHI I
Temp.oC I I Temp.oC I I
Redox Potential Eh (m V) I I Redox Potential Eh (mV) I I
Turbidity (NTU) I I Turbidity (NTU) I I
White Mesa Mill
Field Data Worksheet forGroundwater 1 of 2
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged I ;;).7 . ..5
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = L...I _ll!.....-_----I
gallon(s)
Time to evacuate two casing volumes (2V)
T = 2V/Q = I 3.2.2. I
Number of casing volumes evacuated (if other than two) I ).55
If well evacuated to dryness, number of gallons evacuated 1 ~/.5
Name of Certified Analytical Laboratory if Other Than Energy LablL-.tJ._'IA'--______ --'
Sample Taken Sample Vol (indicate Filtered Preservative Preservati ve
Type of Sample if other than as Added
y N specified below) y N Type y N
VOCs ~ 0 3x40 ml [j M HCL , -f1 0
Nutrients ID 0 lOOml 0 ~ H2SO4 ~ 0
Heavy Metals 0 0 250ml 0 0 HN03 0 0
All Other Non Radiologics 0 0 250ml 0 0 No Preserv. 0 0
Gross Alpha 0 0 1,000 ml 0 0 HN03 0 0
Other (specify) IN 0 Sample volume 0 15 0 ~
L:'-' \O(,J e If preservative is used, specify
Type and Quantity of
Preservative:
Comment
~ See instruction
'--________ ...JIDo not touch this cell (SheetName)
White Mesa Mill
.' Field Data Worksheet for Groundwater 2 of 2
PROPERTY
BOUNDARY
\\
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//
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//
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/1
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--.::::--
MW-01 •
~5
~ TWN-7
MW-18 •
~ TWN-18
~ TWN-3
~
TWN-6
~ TWN-8
~
TWN-15
~
TWN-10
~ TWN-9
PIEZ-1
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MW-19 •
PIEZ-2
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TWN-11
~ TWN-14
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SCALE IN FEET
EXPLANATION
MW-20 • perched monitoring well
TW4-19
0 temporary perched monitoring well
PIEZ-1 perched piezometer I;l
·TWN-1 temporary perched nitrate ~ monitoring well
MW-34 perched monitoring well installed -¢-August/September, 2010
MW-36
~ perched monitoring well
I _II_-l I\ ..... "'il ?()11
CELL NO.1
MW-2
TW4-25
MILL §ITE~
'=~==;; TWN-o 4-21
N-4 .,
PIEZ-3
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MW-02 • ~===:F===JIl======-~O~TTi:WJ,4t._2~2~ OTW4-5
MW-B5
-¢-,
MW-~
MW~3
-¢--
MW-03 •
MW-20 •
3000
.,
CELL NO.2
wildlife pond
HYDRO
GEO
CHEM, INC.
MW-17 •
33
APPROVED
SJS
M -26 TW4_1!PTW4-9
• 0 OTW4-3 OTW4-12
OTW4-1IbTW4_11 OTW4-13
TW4-7~~i.8
OTW4-1
OTW4-40TW4_14
TW4-23 OTW4-6 o
OTW4-26
PIEZ-4
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1£------=-..=-.7 ----
#
PIEZ-5
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T378
T38S
MW-22 • II
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SITE PLAN
AND PERCHED WELL LOCATIONS
WHITE MESA SITE
DATE REFERENCE
H :/718000/nov11 Iwelloc11 .srf
(
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FIGURE
A--
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
ATTACHMENT 1 ~~N:~NI)~~ L MINES FIELD DATA WORKSHEET FOR GROUND WATER
WHITE MESA URANIUM MILL
Attachment 1
~ See instruction
Description of Sampling Event: 1 ?/o.. Qv,(Arh.r Gl1loroforM .20 II
Location (well name):L-I,_Ul_L1_-_7 _________ ---I
Sampler Name
and initials: 1 ~l!l)e.-He II ,(Ja.~/T d
Date and Time for PurgingJ ..... 8_I_J_7_1_.::2._0_'_1 ___ ---'
Well Purging Equip Used: [![]pump o@ bailer
Sampling Event 1G>v..Q.r+~("h1 d\\o('o"toc"1'n
pH Buffer 7.0 7.0
Specific ConductanceL..I_Q_9_9...L.-__ ----'1 [.tMHOS/ cm
Depth to Water Before Purginm b 7, b:S
Conductance (avg)
and Sampling (if different) 1 lS/lg /~OJ J
Well Pump (if other than Bennet) l6-rv.ndfoS
Prevo Well Sampled in Sampling Event l-rw (..{ -7 R,
pH Buffer 4.0 q.O
Well Depth(O.Olft): 1 1;2.0. DO
Casing Volume (V)
pH of Water (avg)
4" well:1 3'1.18 1(.653h)
3" Well: ..... , _O __ --',(.367h)
C;.'67
Well Water Temp. (avg) 1 IS·2iS Redox Potential (Eh) 1-1.2_6_7 __ -1 Turbidity 1 17. 9
Weather Condo Ext'l Amb. Temp. °C (prior sampling event)1 ~I·
Time 109QI 1 Gal. Purged 1 11 f C· 1 Time 1 1 Gal. Purged 1 1
Conductance 1 1 b'i b 1 pH 1 c, . .s1f 1 Conductance 1 1 pH 1 1
Temp. DC I p;.;Xg I Temp. DC I I
Redox Potential Eh (mV) I ?-.bJ I Redox Potential Eh (mV) I I
Turbidity (NTU) I 17.Q I Turbidity (NTU) I I
Time I I Gal. Purged I I Time I I Gal. Purged I I
Conductance I I pH I I Conductance I I pH I I
Temp. DC I I Temp. DC I I
Redox Potential Eh (mV) I I Redox Potential Eh (mV) I I
Turbidity (NTU) I I Turbidity (NTU) I I
White Mesa Mill
Field bata Worksheet for Groundwater 1 of 2
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged ..... 1 ----'-7....;;;;:3'--__ ---'
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = ...... 1 _'_1 __ ---'
gallon(s)
Time to evacuate two casing volumes (2V)
T=2V/Q= 1 10 .2 ' 1
Number of casing volumes evacuated (if other than two)
If well evacuated to dryness, number of gallons evacuated 73
Name of Certified Analytical Laboratory if Other Than Energy Lab~L..tJ_/_A _______ ....I
Sample Taken Sample Vol (indicate Filtered Preservative Preservati ve
Type of Sample if other than as Added
y N specified below) y N Type y
VOCs [gf 0 3x40 rnl 0 ~ HCL 'g]
Nutrients ~ 0 100rnl 0 ~ H2SO4 '[]
Heavy Metals 0 0 250 rnl 0 0 HN03 0
All Other Non Radiologics 0 0 250 rnl 0 0 No Preserv. 0
Gross Alpha 0 0 1,000 rnl 0 0 HN03 0
Other (specify) ~ 0 Sample volume 0 ~ 0
, ..
L h \or-;Je If preservative is used, specify
Type and Quantity of
Preservative:
Comment
~ See instruction
Arri\lea 0(\ ,Sit<~} DZSSb.-r;.nner Mtk G-I)((it'l prc~ef1+-+0 plM".j<:: jWLl-7, ?\A~C!. b't)Afl 0.1-
biSSGf. ?~(~c:~ well .\0(' 6... +ot~\ of " M;t)v..tLS ~t1tA 1-15 :S~cond.s. t\.,r~;~~ well Jt'V\ I.
~ lJ.:tc(' \"J~ \'Y10S~ c.\~o.( ~ Pv..('~~ ~rtde~ o-t O~ Of,. L. -e+-t $ n ( 0.. t c~ I D. \j
Ar("\\Je~ on ~ji~ A.t Ob3-!. -r;;:n"cr ~flJ.. b--~((; r. p,..e~er1} +c> coiled sc.J'YlfJes-Dep+h +~ V-)p..-tu
Lo\)o..s. ~8'·YS . .s~lY1plc,) were:, Goll~G+Ctl G\.}-Ob3b. LefT-~/~+(, "".if-Ob:sf5
L..-_______ ---IIDo not touch this cell (SheetName)
White Mesa Mill
Field Data Worksheet for'Groundwater
N
0
0
0
0
0
~
2 of2
Mill· Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
ATTACHMENT 1 I~ENI50~l)j j l iJ!..NES FIELD DATA WORKSHEET FOR GROUND WATER
WHITE MESA URANIUM MILL
Attachment 1
~ See instruction
Description of Sampling Event: 1 '3 .. 0; Q V\()..rh.(' L. \·d 0 ro;::-O(yY'\ 2,.0 \ \
Location (well name):L..1 I-'-W_4-=--.....;I_R ________ ---I
Sampler Name
and initials: I=rMI'\~(, HolluJ\~/,t-t
Date and Time for PurgingjL.._~_1_17_/_::z._0_J ' ____ .....1 and Sampling (if different) L...-_N._y_A-______ ....I
Well Purging Equip Used: [!!]pump or@] bailer
Sampling Event 1 Q'v\().(+-erh\ Lh lorofo('W)
pH Buffer 7.0
Specific Conductance 1-1 _q_1'--'l ___ ---I1 I-tMHOS/ cm
Depth to Water Before Purgingj'I-_D __ ---'
Conductance (avg) 2..g
Well Pump (if other than Bennet)
I -r~'1-( J Prevo Well Sampled in Sampling Event '-________ ....1
pH Buffer 4.0 q.O
Well Depth(O.Olft): L-I _0 ____ -'
Casing Volume (V)
pH of Water (avg)
4" Well:~(.653h)
3" Well:~(.367h)
Well Water Temp. (avg) 1,;2..5. L\'1 . Redox Potential (Eh)1 '3,~~ TurbiditYL-1 _0 __ ----1
Weather Condo Ext'l Amb. Temp. DC (prior sampling event)1 ~I 0
Time 1 OS t1S I Gal. Purged I I 8' () I Time I I Gal. Purged I I
Conductance I ~.6. I pH I 7.~D I Conductance I I pH I I
Temp.oC I :;2.5. LJ q I Temp.oC I I
Redox Potential Eh (mV) I 3~ I Redox Potential Eh (m V) I I
Turbidity (NTU) I Q I Turbidity (NTU) I I
Time I I Gal. Purged I I Time I I Gal. Purged I I
Conductance I I pHI I Conductance I I pHI I
Temp.oC I I Temp.oC I I
Redox Potential Eh (mV) I I Redox Potential Eh (m V) I I
Turbidity (NTU) I I Turbidity (NTU) I I
White Mesa Mill
Field Data Worksheet for Groundwater 1 of 2 .
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged L..I_;L._O_O ___ --I
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = L-I __ 11 __ --'
gallon(s)
Time to evacuate two casing volumes (2V)
T=2V/Q= I N/A I
Number of casing volumes evacuated (if other than two) D
If well evacuated to dryness, number of gallons evacuated b
Name of Certified Analytical Laboratory if Other Than Energy LabIL.._~_~A'"""'----______ ---'
Sample Taken Sample Vol (indicate Filtered Preservative Preservati ve
Type of Sample if other than as Added
y N specified below) y N Type y
VOCs rn 0 3x40 ml 0 09 HCL ~
Nutrients rn 0 100ml .D C!9 H2SO4 ~
Heavy Metals 0 0 250ml 0 0 HN03 0
All Other Non Radiologics 0 0 250ml 0 0 No Preserv. D ·
Gross Alpha 0 0 1,000 ml 0 0 HN03 0
Other (specify) ,~ 0 Sample volume 0 ~ , 0
G h lor~a-c If preservative is used, specify
Type and Quantity of
Preservative:
Comment
~ See instruction
Arr'I'Je~ 01"1 s..;te &\.1' ct.;).!:" """",""'Cf'" o..n"'-6-~('r:" rres.e.I1t--to, 6()~t:.\-t<::. Kin's4..te be;)!)." o,.f-
o ~'30, 'f\"l" ~~~ f,O G-~lIoYls of fh.; J. lN~t-u-; SO &(l.llon.s of ~oo. P (.Jo,.1-Cf') \00 {,-O\llotJ.s
of DT W!A..1-er . R; .,..so . .t~ en t\eJ. "'} b8SO, s,I?\I'flP le,S \Nef"e. (c> ll<c.+ed. ,J 0 g'11
-Left-si-te.~} Ogs:S
'---________ --'IDo not touch this cell (SheetName)
White Mesa Mill
Field Data Worksheet for Groundwater
N
0
0
0
0
0 "
~
2 of 2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
[OENIS~Ni)~~ ATTACHMENT 1 Attachment 1
~ See instruction WHITE MESA URANIUM MILL
MINES FIELD DATA WORKSHEET FOR GROUND WATER b ._.
Description of Sampling Event: 13" '" Q\Ao..rte.r Gh lorJorr>1 .:to II
Location (well name): .... 1 'i-,--w_l._\_~ _8 _________ --'
Sampler Name .
and initials: r-I-r;--:(),:-n-n-e.-r~:nrto-;J'-J ,-jJ'-~-/T-:--R=-------'
Date and Time for Purginm ~/l-5/.;2.0J I and Sampling (if different) 1 .... :::;,CJ/:-I:...::'L.;!2..=-D ..... JI ____ --'
Well Purging Equip Used:rn=!pump o@ bailer Well Pump (if other than Bennet) l6-r U\lJ ({-P()..S
Sampling Event 1 Q\k~l'h(" 1~ Co ~ I o rotor M Prevo Well Sampled in Sampling Event IL-I_W_y_--1S _____ --'
pH Buffer 7.0 7 .0 pH Buffer 4.0 Y.O
Specific Conductance IL-----L~~q '"'--__ -11 ""MHOS/ cm Well Depth(O.Olft): 1 125.00
Depth to Water Before Purgingj fob. b I 4" well:I 38.1;2. 1(.653h)
3" Well: D (.367h)
'---------'
Casing Volume (V)
Conductance (avg) pH of Water (avg)
Well Water Temp. (avg) 15 .07 Redox Potential (Eh)IL.....;....)Y_' __ -I Turbidity 1 ,Q.C1 . )~
Weather Condo Ext'l Amb. Temp. O( (prior sampling event)1 ~1°
Time I 13Y3 I Gal. Purged I 5:> I Time I )3yQ I Gal. Purged I 66 I
Conductance 133&5 I pH I b.YS I Conductance 1:33Ja I pH 1 6 .l.d.5 I
Temp.oC I )5:.11 I Temp.oC I IS.o 7 I
Redox Potential Eh (mV) I P15 I Redox Potential Eh (mV) 11Y:1: I
Turbidity (NTU) I ;,.tZ.1 I Turbidity (NTU) 1 ~1.;> I
Time 1!)t{5 I Gal. Purged I 77 I Time 113cH) I Gal. Purged I &F I
Conductance 133gj I pHI G.% I Conductance I 3.:5~ 1 I pH I t::.cp I
Temp.oC 115.oQ I Temp.oC 115.Ob I
Redox Potential Eh (m V) I )1:11 I Redox Potential Eh (mV) I Itto I
Turbidity (NTU) I .2..Q .l I Turbidity (NTU) 13lJ.O I
White Mesa Mill
.. Field Data Worksheet for Groundwater 1 of 2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged .... 1 ~g.>::::g ___ ----,
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = ...... 1 _1 ........ 1 __ ---'
gallon(s)
Time to evacuate two casing volumes (2V)
T=2V/Q= 1 b.'t3 1
Number of casing volumes evacuated (if other than two)
If well evacuated to dryness, number of gallons evacuated
Name of Certified Analytical Laboratory if Other Than Energy Labf .... _M----:.'IA""--_____ ----'
Sample Taken Sample Vol (indicate Filtered Preservative Preservati ve
Type of Sample if other than as Added
y N specified below) y N Type y
VOCs ~ D 3x40 rnl D ~ HCL l'B
Nutrients B D 100 rnl D L1I H2SO4 [2
Heavy Metals D D 250 rnl D D HN03 D
All Other Non Radiologics D D 250 rnl D D No Preserv. D
Gross Alpha D D 1,000 rnl D D HN03 D
Other (specify) Il" D Sample volume D B D
L\, \ or·\~(. If preservative is used, specify
Type and Quantity of
Preservati ve:
Comment
~ See instruction
A(r "\Je~ on sit~ 0.1 1333. J:11T'lt:( b-rl'" &o.rr Or) ?('esc:nt +0 f\J\(je -r\A)L.:J-~. r V\( ~ be!l~~ "'\ 13%.? "":3eA I»eli -tor ... +ohl of g l"lin",+<.S. ?~, <-enJe~ "t )'34~ ~~+C( ~ l'V10~J!j deo.r throujhov,t +he p\A(~e. D~p+h t6 ~o..~r' o..~( Dv.r~-l ~4~ I). ~3.
Lt:+t ~I i-!.. CA.t Y35Q., } -J 'R~o." Po.\(VI1::1' on si+<... to c.oll~(.t .so.T'lpks. Depth 1-0 l.)c(t-cr lJCtj f,7.JD
SlXrY\f'\G~ wer(, b.~1t'J. ~f>d-Lolkctc:A (;\1" 11..\.50.
'--_______ ----'IDo not touch this cell (SheetName)
White Mesa Mill
~i"lrl n~t~ wnrksheet for Groundwater
N
D
D
D
D
D
~
-2 of 2"
Mill -Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan (QAP)
Date: 03/22/2010 Rev. 6
Attachment 1
~ See instruction
Location (well name):IL.. _'"T_\N_y_-q~ ________ -J
Sampler Name
and initials: 1'jlA.nn~(' Ao/J,'J't!;/-rH
Date and Time for Purgingjl-g_J_IS_I :2_0 _11 ____ --' and Sampling (if different) $!Ib/:;"O\ I '-=~~-----~
Well Purging Equip Used: [J!]pump o@ bailer Well Pump (if other than Bennet) I Grv.nll(c,,S
Sampling Event p",o.r+ed~ c.h lo("of~( YI1 Prevo Well Sampled in Sampling Event 11....,_I,..)_'-1_-_g ____ --'
pH Buffer 7.0 /.0 pH Buffer 4.0 g.o
Specific ConductanceL...1 '}_~--,i'---__ ----II/-tMHOS/ cm Well Depth(O.Olft):
Depth to Water Before Purgind S3. tto Casing Volume (V) 4" well:1 Lt3.1G 1(·653h)
3" Well: 0 (.367h) L....-__ --'
Conductance (avg) pH of Water (avg)
Well Water Temp. (avg) I 15,3Lf Redox Potential (Eh)IL...:h_g_1 _--' TurbidityI 1;2..Y .55
Weather Condo
Time IIY33 I Gal. Purged I 77
Conductance 1 ~47L\ I pH I i: .?-;!.,.
Temp.oC 1 \5·~ I
Redox Potential Eh (mV) I :;L!:Ii I I
Turbidity (NTU) I ~1.5 I
Time 11t.135 I Gal. Purged I 1(1
Conductance I ~L..\ l' I pH I C) .;r:z:
Temp.oC I \5 .'3"3 I
Redox Potential Eh (mV) 12.77 I
Turbidity (NTU) I tH.,} I
White Mesa Mill
Field Data Worksheet for Grounowater
I
I
I
I
Ext'l Amb. Temp. O( (prior sampling event)1 3 0 6
Time I....I'_Lj3_Y~_...J Gal. Purged IL.:~~~~_----I
Conductance 1L...:2_q_7_4_----' pH I b.~~
Temp.oC I IS .~
Redox Potential Eh (mV) 1'-2 .;.....6.....;9 __ ......
Turbidity (NTU)
Time I /c13'
Conductance l!Zq 78'
Temp.oC 115.31
1 ).;2L1 . J I
Gal. Purged ..... 1/ ...... 1 d"--_--'
pH Ib.!W\
Redox Potential Eh (mV) 1....12_7..::::3~_--I
Turbidity (NTU) I l~7.0
1 of 2
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged 1...1 -I.lJ~()~ ___ ...J
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = IL..--.....:..l.!...l __ --'
gallon(s)
Time to evacuate two casing volumes (2V)
T=2V/Q= 1 7.f54 1
Number of casing volumes evacuated (if other than two)
If well evacuated to dryness, number of gallons evacuated
Name of Certified Analytical Laboratory if Other Than Energy Lab~L..:M,--,-,'//t-,--______ ----,
Sample Taken Sample Vol (indicate Filtered Preservative Preservati ve
Type of Sample if other than as Type Added
y N specified below) y N y N
VOCs ~ 0 3x40 ml 0 qI HCL 1$ 0
Nutrients I'll 0 100ml 0 01 H2SO4 lSI 0
Heavy Metals 0 0 250ml 0 0 RN03 0 ,0
All Other Non Radiologics 0 0 250ml 0 0 No Preserv. 0 0
Gross Alpha 0 0 1,000 ml 0 0 RN03 0 0
Other (specify) 11J 0 Sample volume 0 ~ 0 6J
G\'\o~,A( If preservative is used, specify
Type and Quantity of
Preservative:
Comment
~ See instruction
A1"("i~'C:o. on s."tc 01.1-'~. T"rlncr' D.IltA ~ii1((:1"\ fr~5efrr+O pu.r\)< TW!_~. Pur c b~'I.1l 0..+ lLj~~. '?\),r~(~ \pod \ +0(, /1... +oh.J c.f )0 M,1)IA+t'~. \V6.:h:r hc..~ "-j:+}!c ~ . .s~6Jar t~ it.
?LAr~e el'\d(a '" r 143'. O-ep1-h 10 (At<:r 11-.~~1 f>"'ej"C \»C\~ -7). ~5. Let} S;+e iA.t 14YL/.
'Rj/l"r\ Pl1\1~er pre~Cf)} to colle.ct-SQYl'Iple$. p~pt~ +0 Wetter vJ4~ 5~.~.
~(1,Mp\e~ \,)<rc' l::n;, i 1('~ <At J Y.?.1.
L...-________ ....... IDo not touch this cell (SheetName)
White Mesa Mill
Field Data Worksheetlor Groundwater .' 2 of 2
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
ATTACHMENT 1 I :E~:~J)iil ,.>\).l~~IN~S ~_J FIELD DATA WORKSHEET FOR GROUND WATER
WHITE MESA URANIUM MILL
Attachment 1
~~ See instruction
Description of Sampling Event: 13r d\ Q\Ao..rfe r ch loro-forM ~ 0 II
Location (well name ):1-1 _'T_W_Ll_-_IO ______ ---'-__ ----I
Sampler Name
and initials: I I~nrlu ~o'\:JfA.:1/'-1i
Date and Time for PurgingjL..:~::;..;....I _1 (,.....:./...:~_\_I ____ -..I and Sampling (if different) 1L...;~;::;.:./....:..I7...:...;/.;...;;:;..._D_I;..:..I ___ ----1
Well Purging Equip Used: [IDpump o@ bailer Well Pump (if other than Bennet)
I -rWL\-;;u. Prevo Well Sampled in Sampling Event 1-________ --'
pH Buffer 7.0 1L.....-7_._D ___ ....J pH Buffer 4.0 Lto
Specific Conductance .... 1 q_~_·~"'--___ -'lftMHOS/ cm Well Depth(O.Olft): ..... 1 \_'_"_0_0 __ --'
Depth to Water Before Purging/ E.b ,0 \ . 4" well:1 ~.9() 1(·653h)
3" Well: 0 (.367h) '--------'
Casing Volume (V)
Conductance (avg) 7)D.~ pH of Water (avg) '.15
Well Water Temp. (avg) 1 16·\·(5 Redox Potential (Eh) 1 .... 3_I..'_<X __ --' Turbidity ..... 1 _)3_Zl __ --'
Weather Condo Ext'l Amb. Temp. °C (prior sampling event}IJ..'1 D
Time I llY) I Gal. Purged I I::,f} I Time I I Gal. Purged I CC · I
c"b
Conductance 111O.q I pH I ". \5 I Conductance I I pHI I
Temp.oC I ((;.Y3 I Temp.oC I I
Redox Potential Eh (m V) I 3 cIl I Redox Potential Eh (mV) I I
Turbidity (NTU) I 1'3.b I Turbidity (NTU) I I
Time I I Gal. Purged I I Time I I Gal. Purged I I
Conductance I I pH I I Conductance I I pHI I
Temp.oC I I Temp.oC I I
Redox Potential Eh (mV) I I Redox Potential Eh (m V) I I
Turbidity (NTU) I I Turbidity (NTU) I I
White Mesa Mill
, Field Data Worksheet for Grouridwater 1 of 2"
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged .... 1 ---.;;;<;;....,, ___ ---1
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = ,--I _,_, __ ---'
gallon(s)
Time to evacuate two casing volumes (2V)
T=2V/Q= 1 (,.s? 1
Number of casing volumes evacuated (if other than two) 1 \.S3
If well evacuated to dryness, number of gallons evacuated
Name of Certified Analytical Laboratory if Other Than Energy Labl .... N.-'v:...;A...:..-______ .......I
Sample Taken Sample Vol (indicate Filtered Preservati ve Preservative
Type of Sample if other than as Type Added
y N specified below) y N y
VOCs 1tl 0 3x40 ml 0 ~ HCL lSI
Nutrients fl] 0 100ml 0 rll H2SO4 ~
Heavy Metals 0 0 250ml 0 0 HN03 0
All Other Non Radiologics 0 0 250ml 0 0 NoPreserv. 0
Gross Alpha 0 0 1,000 ml 0 0 HN03 0
Other (specify) rfl 0 Sample volume 0 ~ []
Ch \De; ~e. If preservative is used, specify
Type and Quantity of
Preservative:
~ See instruction
Comment
A«';\leo.. on !.i-te. ~.1-'~L -r;."fJe.f" M\d.. G-a...rr:{1 f>f'ese tlt h pv..r~e J'W~~I{), Pv.'{'~c:. bejo.n ~+ '~~7.
?lJ\r~e~ \Nell +or a... +o-k,1 of G:. 'Mi(l""t~~. fv.r~~~ Well <kfj '. l.A)o.-ter W~~ c.le.o... ~ 1'\,f,r~e. -e"h4
0-.'" 1~Y.3. Ld+ ~A<. A.~ U l.\S.
A(fi\lt~ on ~i-tc: 0-+ 0131£. "'-;'l1ll~(~f\t.I.. (ru..r(;,., preHI"l+ +0 ,,+Hd~J (olla1-.s{'(fI1pJ('~ . .Dept~ 1-0
\Nctto'" W"~ 5'-.3.5 Sl.Il"\p\t'..) wert c.oll-ec:tc& pJ 01'15. L~-F'} .s;r(' ,,+ 07Y1.
L..-.. ________ -JIDo not touch this cell (SheetName)
White Mesa Mill
Field'Data Worksheet for Groundwater
N
0
0
0
0
0
1&1
2 of 2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
ATTACHMENT 1 1::.soJ)---.n1 L~INES _~ FIELD DATA WORKSHEET FOR GROUND WATER
WHITE MESA URANIUM MILL
Attachment 1
~ See instruction
Description of Sampling Event: ::, r3: Q",,,,-,..t<,.. Gh Ie:) re:)\i)rrv1 .20 1\
Location (well name) :L-I-r-.:...-w-=---y.:....-_l_l ________ ---I
Sampler Name
and initials: I"-;nner Ho 11/'J~/-r}t
Date and Time for Purging/J.-_g_1_1 b_/._.9-._0_1_' ___ -----'
Well Purging Equip Used: [!!]pump or@] bailer
pH Buffer 7.0 7.0
Specific Conductancel ..... _Q ..... 49...L...-__ -JIt-tMHOS/ cm
Depth to Water Before Purgin~ 57.55
Conductance (avg) lb~J
and Sampling (if different) gj 17 /;;.. 0 1\
Well Pump (if other than Bennet) I Cr-rV"-n,,{F'o.S
Prevo Well Sampled in Sampling Event I ,W LJ -~I
pH Buffer 4.0
Well Depth(O.Olft): I \00.00
Casing Volume (V)
pH of Water (avg)
4" well:1 :;2.7:1 J 1(·653h)
3" Well:L-. .....;~~_---I. (.367h)
b .37
Well Water Temp. (avg) I 15 .~l..{ Redox Potential (Eh) ..... 13=o::;..Q-'--_--' Turbidity ..... 1 .....;;lg;..;,..;,....1 _---'
Weather Condo Ext'l Amb. Temp. O( (prior sampling event)L-13_I_o_...J
Time 1 1L\~ I Gal. Purged I 77 I Time I I Gal. Purged I I
Conductance I I f/-\l I pH I ro .37 I Conductance I I pH 16' I
Temp.oC I \S.',29 I Temp.oC I I
Redox Potential Eh (mV) I ~S4 I Redox Potential Eh (mV) I I
Turbidity (NTU) I )2$.\ I Turbidity (NTU) I I
Time I I Gal. Purged I I Time I I Gal. Purged I I
Conductance I I pH I I Conductance I I pH I I
Temp.oC I I Temp.oC I I
Redox Potential Eh (mV) I I Redox Potential Eh (mV) I I
Turbidity (NTU) I I Turbidity (NTU) I I
White Mesa Mill
Field Data Worksheet for Groundwater 1 of2
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged 1-1 _7~7.L....-___ -'
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = 1..-1 -..:...11:.....-_----'
gallon(s)
Time to evacuate two casing volumes (2V)
T = 2V /Q = 1 5. 03 1
Number of casing volumes evacuated (if other than two)
If well evacuated to dryness, number of gallons evacuated .... 1 ...:..7 ...... 7"-_---'
Name of Certified Analytical Laboratory if Other Than Energy Labl'-_Al_'/_A"--_____ ---'
Sample Taken Sample Vol (indicate Filtered Preservative Preservative
Type of Sample if other than as Added
y N specified below) y N Type y
VOCs ~ 0 3x40 mI 0 r:i HCL IE
Nutrients ~ 0 100mI 0 [] H2SO4 I]-
Heavy Metals 0 0 250 mI 0 0 HN03 0
All Other Non Radiologics 0 -0 250 mI 0 0 No Preserv. 0
Gross Alpha 0 0 1,000 mI 0 0 HN03 I, 0
Other (specify) Qf 0 Sample volume 0 ~ 0
If preservative is used, specify
Type and Quantity of
Preservative:
Comment
~ See instruction
Arr;\le~ on ~;h 0-+ 141~. """I'II1e.r "n~ G-Q.r";n pre.scfl~ +ll pv.\""~~ TWLj-)J. Pv.'~r: bej<:ln ~t
lY2..1. P\A.('5etA ",,(:\1 J'c:.r ~ .f-o·h..l of' 7 t>'1ir1v...+es . wo..+a WG\...S cleo.r -f-hrot.tjho\A.J.-
t-h~ ?v.r~<. Pur~tc.l ~ell J.rj I. P",r~-e ended G\t !Y2X. It'ft ,s,+! 0..-1-}Y33.
A(("·\)·d.ol\ Si1-t:. "'+ o~o.~l...-r(AM-e.~o-(\A 6-"o.r6f1 ?('.e~e.(lt +0 c.oll..e.d-~~rV)ple~. ):::>ept~ to \.UC\.t<<'
\NQ..::, Sg .7;(. So.t'1pk~ V-l~(c 60\.le~ At-o go;. \...e.-R-.s;h 0..-)--08'ID
'--_______ ---lIDo not touch this cell (SheetName)
White Mesa Mill
Field D;i'ta Worksheet for Groundwater
N
0
0
0
0
0
r:8
2 of;
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
ATTACHMENT 1 1:~~~jll L.iJtNES . FIELD DATA WORKSHEET FOR GROUND WATER
WHITE MESA URANIUM MILL
Attachment 1
~ See instruction
Description of Sampling Event: 13 ra Q",o..("h( CJ\)orc)Of~(r¥l .:2,01/
Location (well name) : ... 1 _T_\t.l_'-l_-..:....12.. ________ ----'
Sampler Name
and initials: l -r;,n'flG .... ~c')I1;Ad In!
Date and Time for Purgingj'-'~::;..:/_I.;....5_J_~_O_I_J ___ ----' and Sampling (if different) I &/1,(,/..2.01)
Well Purging Equip Used: [![jpump or@] bailer Well Pump (if other than Bennet)
Prevo Well Sampled in Sampling Event 1Io-..1_W_L1_-_.J ____ ----'
pH Buffer 7.0 pH Buffer 4.0 L).O
Specific ConductanceL.-1 4..L.Q....;.,4..l.....-__ ----'I/-tMHOS/ cm Well Depth(O.Olft): Ilbl-5 D
Depth to Water Before Purgingj 34.7() Casing Volume (V) 4" well:1 QO.55 1(·653h)
3" Well: c> (.367h)
'---------'
Conductance (avg) 1L--,q..::.~=B_.~_C> ____ ---, pH of Water (avg) b./l
Well Water Temp. (avg) I ILI.K() Redox Potential (Eh)L.-1 L\~lql--_......I Turbidity I y .07
Weather Condo Ext') Amb. Temp. O( (prior sampling eventll 14 b
Time 1090.? I Gal. Purged I 5S I Time 1 090) I Gal. Purged I bb I
Conductance I q~·o I pH I fo.70 I Conductance I 42>$·7 I pH I {;,.72 I
Temp. DC I 1'i .3 () I Temp. DC 114 ·z1 I
Redox Potential Eh (m V) I L'30 I Redox Potential Eh (mV) I :l~A. I
Turbidity (NTU) I q.l'5 I Turbidity (NTU) 1 1..1 .0 1
Time I o1oy I Gal. Purged I 72 I Time I D9{)5 I Gal. Purged 11ft I
Conductance I 93q.J I pHI b ·n I Conductance I '137.25 I pH I b.73 I
Temp. DC 11Y .ZO I Temp. DC I 'Iq ·31 I
Redox Potential Eh (mV) I c\lq I Redox Potential Eh (mV) I 91D I
Turbidity (NTU) I eLl I Turbidity (NTU) I ~!~ I
White Mesa Mill
Field Data Worksheet for Grou'ndwater 1 of 2
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged ..... 1 ...... g ..... f<..<.....-___ ..... gallon(s)
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = 1'----'11'---_----'
Time to evacuate two casing volumes (2V)
T=2V/Q= 17.33 1
Number of casing volumes evacuated (if other than two) ,-,I..v.-,'I.~A;;I..-_---'
If well evacuated to dryness, number of gallons evacuated L.;..I ,N._:1,...;..ft~_---,
Name of Certified Analytical Laboratory if Other Than Energy LablL.....:.."v-l.i....l./...:..\ ______ --I
Sample Taken Sample Vol (indicate Filtered Preservati ve Type of Sample if other than as
y N specified below) y N Type
VOCs ~ 0 3x40 rnl 0 ~ HCL
Nutrients _\til 0 100 rnl D ~ H2SO4
Heavy Metals 0 0 250 rnl 0 0 HN03
All Other Non Radiologics 0 0 250 rnl 0 0 No Preserv.
Gross Alpha 0 0 1,000 rnl 0 0 HN03
Other (specify) ~ 0 Sample volume 0 m
Preservative
Added
y N
"Kl 0
1tI 0
0 0
, 0 D
0 0
0 ~
Ghlo("'J~e If preservative is used, specify
Type and Quantity of
Preservati ve:
Comment
~ See instruction
A((;\leJ on s;tc o:J Ogs3.~t'll1u· (}..(1rA (;-M(;n preSt:rrY+b plA~e IWI..J-l~. ?v.r~G be~4n 0..+ 0857
P",,~e~ '" ell k-,,+or.1 '* 8 ",' "",tes, 1il .. +.C \')", G \e"~ +},'D~O'" t-+h. F'''S''
1" .... ,':'f en~.~ .. :r o~ () s. Del" t~ -l-o \,:> '" 1-<-C .. J).G( F.W"~ e "''''' '1 Z. 71 L J)-$ ;r t-,,1" "9/0.
R:j1i\1\ H,..\m-((" prl!~C(l+-1-~ <:.ollt'c,-\-5e:.mp)cS. Pcy+-l-1 -to \.0o..1-c:r lI)4S 3Q .2.0 .
.s"""y>\-c> ~c:n .. b",;\clk (}.r'ltA cD\kc.rcd. t'-1-13LJ~
'--_______ ---IIDo not touch this cell (SheetName)
White Mesa Mill .
Field Data Worksheet for Groundwater 2 of 2
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
ATTACHMENT 1 ~ENISOt!)~~ WHITE MESA URANIUM MILL
Attachment 1
~ See instruction
MINES FIELD DATA WORKSHEET FOR GROUND WATER ...........--.-
Description of Sampling Event: 13 fJl Q"'CAr+Gr C.h lor O-tO('M .2..0 I J
Location (well name): ..... 1 T...:...-w_L..:....I ---=-1.J&...--________ ---I
Sampler Name
and initials: 1~Y1Ylu Qo I J/J't1/n~
Date and Time for PurgingJ'-'~ ... /_'}=~..:.../_:A._O.....;.lJ ____ __' and Sampling (if different) ...... 1 g=/;....:}.....;.'''''-)_~_D....;..' _, ___ ----'
Well Purging Equip Used:@]pump or@] bailer
Sampling Event 1 Q"'CArh.(').::1 (..hlorbforf"'l
pH Buffer 7.0 7.0
Specific ConductanceI-I _4 ..... 1....,~ ___ ~h.tMHOS/ cm
Depth to Water Before Purginm '1 b .3'
Conductance (avg) Ib33 L...-~~~ ____ ~
Well Pump (if other than Bennet) 1 &rW1d+o,S
Prevo Well Sampled in Sampling Event ..... 1 -r_w_L.\_-_J_~ ____ ......J
pH Buffer 4.0 LI. 0
Well Depth(O.Olft): 1 101 . .50
Casing Volume (V)
pH of Water (avg)
4" well:/ ~b. b'1 /(.653h)
3" Well:l-. _D~_~.(.367h)
7057
Well Water Temp. (avg) 1:S.~~ Redox Potential (Eh)1 t..j2D Turbidity ...... 1 ~...:.-.J-,r __ --,
Weather Condo Ext'l Amb. Temp. O( (prior sampling event)1 ~C>&
Time 1 OQSLj -I Gal. Purged 1 ,-\ '1 . I Time I IY"l5.:5 Gal. Purged ...... 1 ;5_>'5 __ ---'
09.5.,5 1:b35 .55
Conductance 1 1 pH 1 ro .57 I pH ,-I __ ---' Conductance
Temp.oC I 15,;;2.4 I Temp.oC
Redox Potential Eh (m V) I LU~ I Redox Potential Eh (mV) 1-1 ___ __'
Turbidity (NTU) I ~.9 I Turbidity (NTU) I J
Time I 0':\5(;, -I Gal. Purged I 6'5 ~ I Time Gal. Purged .... 1 ___ __'
Conductance I I pHI I Conductance pHI-I ___ -I
Temp.oC I I Temp.oC
Redox Potential Eh (m V) I I Redox Potential Eh (mV) 1...1 ___ ---1
Turbidity (NTU) I I Turbidity (NTU)
White Mesa Mill
Field Data Worksheet for Groundwater ·1 of,
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged ..... I_b....;;' ___ -' gallon(s)
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = ..... 1 _, \'---_----'
Time to evacuate two casing volumes (2V)
T=2V/Q= I 6.0 I
Number of casing volumes evacuated (if other than two) I I.bb
If well evacuated to dryness, number of gallons evacuated bl
Name of Certified Analytical Laboratory if Other Than Energy Lab~ ..... _tV_/_/} ______ .......
Sample Taken Sample Vol (indicate Filtered Preservative Preservati ve
Type of Sample if other than as Added
y N specified below) y N Type y N
VOCs I:l-0 3x40 ml 0 Ij. HCL SI 0
Nutrients CB 0 100ml 0 ~ H2SO4 ~ 0
Heavy Metals 0 0 250ml 0 0 HN03 0 0
All Other Non Radiologics 0 0 250ml 0 0 No Preserv. 0 0
Gross Alpha 0 0 1,000 ml 0 0 HN03 0 0
Other (specify) BI 0 Sample volume 0 tlI 0 Cj
ch \o{";ae If preservative is used, specify
Type and Quantity of
Preservative:
Comment
~ See instruction
'--_______ -'IDo not touch this cell (SheetName)
White Mesa Mill
Field Data Worksheet for Groundwater 2 of 2
Mill -Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance plan (QAP)
Sampler Name
Date: 03/22/2010 Rev. 6
Attachment 1
L"~ See instruction
Location (well name):1-1 T_w_L.\_~_l _~ ________ ----, and initials: lr:r:;:nMr f} 0 I LJ",~ /nt
Date and Time for PurgingJl-_g..:..../..;;...1.5....:,/_9-_0_1_1 ___ ---'
Well Purging Equip Used:~pump or@] bailer
Sampling Event IQv'.o..c'+u8 GhlofO}O(rr)
pH Buffer 7.0
Specific ConductanceL-1 q_~..:....1 ___ ---'I!lMHOS/ cm
Depth to Water Before Purgin~ K1-30
Conductance (avg) 0, ,
and Sampling (if different) 1L-&~/:....:I.(,;L...7:J.......:.....o..:....)J ___ ----'
Well Pump (if other than Bennet) IGTIAr'l(}\~oS
Prevo Well Sampled in Sampling Event 11--n_W_L:_\_-_I~ ____ ---'
pH Buffer 4.0 Lj.O
Well Depth(O.Olft): I ~3. 00
Casing Volume (V)
pH of Water (avg)
4" well:1 3.J~ 1(·653h)
3" Well:L-. _O __ -J.(.367h)
Well Water Temp. (avg) ':l...S.~ Redox Potential (Eh) I 3gb TurbiditYL-1 ..:..;)....=;0 __ --1
Weather Condo Ext'l Amb. Temp. DC (prior sampling event)1 ~I b
Time I )()t; J I Gal. Purged I S.S I Time I I Gal. Purged I I
Conductance I 0.1 I pH Is.en I Conductance I I pH I I
Temp.oC 1 t95:~b I Temp.oC I I
Redox Potential Eh (mV) I 5ZlO I Redox Potential Eh (m V) I I
Turbidity (NTU) I l.O I Turbidity (NTU) I I
Time I I Gal. Purged I I Time I I Gal. Purged I I
Conductance I I pH I I Conductance I I pH I I
Temp.oC I I Temp.oC I I
Redox Potential Eh (mV) I I Redox Potential Eh (mV) I I
Turbidity (NTU) I I Turbidity (NTU) I I
White Mesa Mill
Field Data"Worksheet for Groundwater . 1 of 2
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged L..I ....:5~ . .s=--__ ---I gallon(s)
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = IL---'-=-I __ ---I
Time to evacuate two casing volumes (2V)
T=2V/Q= I .b7C:, I
Number of casing volumes evacuated (if other than two) II.Y1
If well evacuated to dryness, number of gallons evacuated .5_5
Name of Certified Analytical Laboratory if Other Than Energy Lab~L.._~_1....:..A-,--_____ ----,
Sample Taken Sample Vol (indicate Filtered Preservative Type of Sample if other than as
y N specified below) y N Type
VOCs 129 0 3x40 mI 0 ~ HCL
Nutrients .~ 0 100mI 0 ~ H2SO4
Heavy Metals 0 0 250 mI 0 0 HN03
Preservative
Added
y N
'[I 0
1tJ 0
0 0
All Other Non Radiologies 0 0 250 mI 0 0 No Preserv. 0 D .
Gross Alpha [J D 1,000 mI 0 0 HN03 0
Other (specify) lEI 0 Sample volume 0 lEI 0
ch 10(';~L If preservative is used, specify
Type and Quantity of
Preservative:
Comment
~ See instruction
Arri-Jeo.. 0(1 .site "'1 \O:3b. ~/'1"~"" ~1"Id. &Mf:" pre~crrt-+o P'-'("~e.. l~\.l ~ 14. Y"'(je b~~yAn 0..+ JOL.JJ
l' W'~-e~ well -rOI v.. ·b+t..\ ~ 3D ~<:('c71Ch P -,. "ell 1 r-J.) 0 -v..r~eo. V'-' O\~. 1 v.r~t:. enat't\ I>,:t lOt.{ I. Wah, ~ ~J.C:G\r +hro~~ovJ-?u.r~e. Left sa·" ",t 10 LI.S .
'R~I1.r'\ ?v..\rv\~(, ?1~Se.(\+ tD c.oned-5~/'l'1FJe.~. 1:J~pt~ 1-0 w~+e( W6.S 27.~;(.
SIAt¥'\p\e~ we((' bt\;\<J. (}.(\rA (...o\led-.!:J.. 0..1--P103.
L--_______ ----lIDo not touch this cell (SheetName)
White Mesa Mill
Field Data Worksheet for Groundwater
0
1f;J
2 of2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
ATTACHMENT 1 '-:::,-~50J)n ~INES ~ FIELD DATA WORKSHEET FOR GROUND WATER
WHITE MESA URANIUM MILL
Attachment 1
~ See instruction
Descripti'; ~f ~~~pling Event: 13(/11 Q\Aarftl" c..h \o(o:tof'm 0...011
Location (well name ): ..... 1 __ ""\\J.l....:......;._'4....;.....--..:;l5~ ______ ----I
Sampler Name
and initials: 1-r411nt.1" 110 II; J~ ;J"H
Date and Time for Purginm 'if 17/a..oll and Sampling (if different) ..... 1 N.;.....:....'IA-'--_____ --'
Well Purging Equip Used: [!!]pump o@ bailer
Sampling Event 1 Q",&\(t-er8 c.h lor o+o( M 1
pH Buffer 7.0
Specific Conductance ..... 1 ---'4 ...... j ...:..1 ___ .... II-tMHOS/ cm
Depth to Water Before Purginm 7 b, I J
Conductance (avg)
Well Pump (if other than Bennet) 1 C.O(l+ifhAOIAS
Prevo Well Sampled in Sampling Event IIWl.J -:;;"0
pH Buffer 4.0
Well Depth(O.Olft): 1 12-0.50
Casing Volume (V)
pH of Water (avg)
4" well:1 3 0 .2.4 1(.653h)
3" Well:L-. _b;;;......-._-J. (.367h)
Well Water Temp. (avg) 1 1 '·"'1 Redox Potential (Eh) .... 1 _~_5_~_---, Turbidity 1 .... _0 __ ---'
Weather Condo Ext'l Amb. Temp. O( (prior sampling event)1 '30"
Time I l~l.\q I Gal. Purged I I Time I I Gal. Purged I I
Conductance I ~~D7 I pH I C::, .~'1 I Conductance I I pH I I
Temp.oC I I~·X~ I Temp.oC I I
Redox Potential Eh (mV) I {)57 I Redox Potential Eh (m V) I I
Turbidity (NTU) I () I Turbidity (NTU) I I
Time I I Gal. Purged I I Time I I Gal. Purged I I
Conductance I I pHI I Conductance I I pHI I
Temp.oC I I Temp.oC I I
Redox Potential Eh (mV) I I Redox Potential Eh (mV) I I
Turbidity (NTU) I I Turbidity (NTU) I I
White Mesa Mill
Field Data Worksheet for Groundwater 1 of 2
Mill -Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged .... 1_0 ____ ....... gallon(s)
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = 1-1 .::::;..5.;.:.'3:.......-_----1
Time to evacuate two casing volumes (2V)
T=2V/Q= 1 0 1
Number of casing volumes evacuated (if other than two) o
If well evacuated to dryness, number of gallons evacuated D
Name of Certified Analytical Laboratory if Other Than Energy LabIL..._pJ-...:...'/4..:....-_____ ~
Sample Taken Sample Vol (indicate Filtered Preservative Type of Sample if other than as
y N specified below) y N Type
VOCs ~ 0 3x40 mI 0 lB HCL
Nutrients 1B t1 lOOmI [j ~ H2SO4
Heavy Metals 0 0 250mI 0 0 HN03
All Other Non Radiologics 0 0 250mI 0 0 No Preserv.
Gross Alpha 0 0 1,000 mI 0 0 HN03
Other (specify) m 0 Sample volume 0 ~
Date: 03/22/2010 Rev. 6
Preservative
Added
y N
lSI 0
"EI 0
0 LI
0 0
0 0
0 2J
Ch \O'·lae. If preservative is used, specify
Type and Quantity of
Preservative:
Comment
~ See instruction
Aff';-.jr:.~ 01'\ S~+e.. 0--+ };l..YY. lo..Mer a.r1~ G-C4.rr;n f("d~n+ -h,(" ~ClMp1j e.venf.
100v,, oepth +0 ~1-cr lMd-.s~W\pl~s ~(~ cDlled~ot ~+ J.;2..50. LUli\.1-c:r WC0;.
C't:::&\(, L-e-t} s.; r~ {i:..11~SS .
L-________ ..... IDo not touch this cell (SheetName)
White Mesa Mill.
Field Data Worksheet for Groundwater . 2 of 2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
ATTACHMENT 1 I~E~'SON"Ji L MINES ~ FIELD DATA WORKSHEET FOR GROUNDWATER
WHITE MESA URANIUM MILL
Attachment 1
~ See instruction
Description of Sampling Event: I '3,.a Q",c..c-tu Gh lcr()t)rl"1 !Loll
Location (well name):L..I_,_w_'-'_-_,_4. ________ -'
Sampler Name
and initials: 15 ~nn<.r 'flol\:ao..::1)-rA-
Date and Time for PurgingJ1-~_/_I_{"_/ !2_D......;I1 ____ --1 and Sampling (if different) I Sj 111~o II
Well Purging Equip Used:@]pump o@ bailer Well Pump (if other than Bennet) I &rlAntHO.s.
Sampling Event l'?l Quc.,.hrl~ Gk \o("o+orm I Prevo Well Sampled in Sampling Event L..11'_·_W_'i_-_b ____ -'
pH Buffer 7.0 7_0
Specific ConductanceL-1 .....;.q...;..~1.!--___ ....II!J.MHOS/ cm
Depth to Water Before Purgingj ~. gS
Conductance (avg)
pH Buffer 4.0 y.o
Well Depth(O.Olft): l 1LtQ.O()
Casing Volume (V)
pH of Water (avg)
4" well:1 S\, (,g 1(·653h)
3" W ell:L-_ _0-'---_----'_ (.367h)
Well Water Temp. (avg) I \l...j. 8~ Redox Potential (Eh)'-I.!4...;...b_I __ --' Turb idity 1'----'t.J .... LI'---_--'
Weather Condo Ext'l Amb. Temp. O( (prior sampling event)1 ').30
Time 11C 13 I Gal. Purged I ,,'\ I Time I 101"1 I Gal. Purged I lJO I
Conductance I '3~9k I pH I {,.;2.1 I Conductance 1 3b6 1 I pH 1(,.;)..$ I
Temp.oC I lq ·$~ I Temp.oC 1)4 ·8'> I
Redox Potential Eh (mV) I 'r)..7g I Redox Potential Eh (m V) I .?.7~ I
Turbidity (NTU) I ~S.b I Turbidity (NTU) I Yl./.l I
Time I lD\S I Gal. Purged I 12.1 I Time 1101"" I Gal. Purged I 1 :32 I
Conductance I ~.(.D5 I pH I ".~ I Conductance I 'Jft>l I pH I f>5J' I
Temp.oC I IQ.go I Temp.oC I ) Y .]~ I
Redox Potential Eh (mV) I ').."bd.. I Redox Potential Eh (mV) I ~51 I
Turbidity (NTU) I LPlD I Turbidity (NTU) 11.];6.1 I
White Mesa Mill
Field Data Worksheet for Groundwater ." 1 of2
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged 11-1_3..;:2""'"---__ ---'
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = ,--I _1_' __ -'
gallon(s)
Time to evacuate two casing volumes (2V)
T = 2V /Q = 1 g .3'i 1
Number of casing volumes evacuated (if other than two)
If well evacuated to dryness, number of gallons evacuated
Name of Certified Analytical Laboratory if Other Than Energy LablL-tJ_/A _______ .....J
Sample Taken Sample Vol (indicate Filtered Preservative Preservati ve
Type of Sample if other than as Added
y N specified below) y N Type y N
VOCs ~ 0 3x40 ml 0 ~ HCL 19 .,. 0
Nutrients rB 0 100 ml 0 ~ H2SO4 EI 0
Heavy Metals 0 0 250ml 0 0 HN03 0 0
All Other Non Radiologics 0 0 250ml 0 0 No Preserv. 0 0
Gross Alpha 0 0 1,000 ml 0 0 HN03 0 0
Other (specify) ltl 0 Sample volume 0 ~ 0 m
L.h )of'i d.e If preservative is used, specify
Type and Quantity of
Preservative:
See instruction
Comment
L...-________ ....JIDo not touch this cell (SheetName)
White Mesa Mill
Field Data Worksheet for Groundwater 2 of 2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
:-EN-IS~J)-~"~~ ATTACHMENT 1
WHITE MESA URANIUM MILL
Attachment 1
~ See instruction
MINES FIELD DATA WORKSHEET FOR GROUND WATER <-----..:.,...--..,..
Description of Sampling Event: 3 r-d' Q",{).rtcr' c..J'" lorofo rM !to II
Location (well name): .... 1 _N_W_-_3_d.. _________ ---'
Sampler Name
and initials: 1 ~"'lt'r }"}o 11IJa.j /111
Date and Time for Purgingj fS / I b 7 ~o \ I and Sampling (if different) '/\//1\ '---------~
Well Purging Equip Used: [![] pump o@ bailer Well Pump (if other than Bennet) 1 L.. Q_)_~_O ____ --,
Sampling Event IQv.,a.Aerl~ Gh \orbto()N' l-nV '-l-;l.4 R Prevo Well Sampled in Sampling Event L.. _______ --....I
pH Buffer 7.0 7 .0 pH Buffer 4.0 1...\.0
Specific ConductanceL..I..:..~_9~ ____ ...J"lMHOS/ cm Well Depth(O.Olft): 1,-\3_~_._b_O __ --,
Depth to Water Before PurgingJ -, b . 0 ~ Casing Volume (V) 4" well:1 3b, gb 1(·653h)
3" Well: 0 (.367h) 1.-__ ----1
Conductance (avg) pH of Water (avg) 5,'11 .
Well Water Temp. (avg) 1 2...0:11...{ Redox Potential (Eh) .... 1 2._09 __ --' Turbidity IL.......:;:O"-_---'
Weather Condo
Time I\~So
Conductance 1 'J:> b )5
Temp.oC
Gal. Purged 1 7 S . "lS
pH 1 $.q1
Redox Potential Eh (mV) 1 Q....'01...
Turbidity (NTU) ()
Time 1 120Sd.. Gal. Purged 11 b :3>Z
Conductance 1 ,)lSg 5 pH 1 (,.00
Temp.oC 1 Q...6.7'»
Redox Potential Eh (mV) 1 ~IO
Turbidity (NTU) o
White Mesa Mill
Field Data Worksheet for Grej'undwater
Ext'l Amb. Temp. O( (prior sampling event)I '7 0 . 1
Time 1 t? .. 51 1 Gal. Purged 116 .J-6 1
Conductance 1 35~:S 1 pH 1 S.,,~ 1
Temp.oC 1 M.7D 1
Redox Potential Eh (mV) 1 ~I 0 1
Turbidity (NTU) I () J
Time 1 1;:2.53 1 Gal. Purged 1 76. (, () 1
Conductance 1 3k~() 1 pH 1 b .OO 1
Temp.oC 1 ~.c).51 1
Redox Potential Eh (mV) 1:;"'07 1
Turbidity (NTU) 1 () 1
1 of 2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged 1 77.03
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = 11.-"_2._17 __ ----1
gallon(s)
Time to evacuate two casing volumes (2V)
T=2V/Q= 1 33G!.gO 1
Number of casing volumes evacuated (if other than two)
If well evacuated to dryness, number of gallons evacuated
Name of Certified Analytical Laboratory if Other Than Energy LablL..;;V._v...:.;"'--______ --'
Sample Taken Sample Vol (indicate Filtered Preservative Preservati ve
Type of Sample if other than as Added
y N specified below) Y N Type y
VOCs !1;1 0 3x40 ml 0 f)j] HCL ~
Nutrients $I 0 lOOml 0 I). H2SO4 00
Heavy Metals 0 0 250 ml 0 0 .. HN03 0
All Other Non Radiologics 0 0 250ml 0 0 No Preserv. 0
Gross Alpha 0 0 1,000 ml 0 0 HN03 0
Other (specify) ;·lhl 0 Sample volume 0 r.a D
C h \ori at If preservative is used, specify
Type and Quantity of
Preservati ve:
Comment
~ See instruction
Arr;\ld, on .s;+t: a..t Ob5.(.. ~ntla o,YlJ G-Q,rr;Yl rre..se.n+ .for r\\r~'( o-ntA ,Stimp1;"j cV~f)f .
P"'I'~tt b~~IJ,T\ 0-+ 070D. r\A.(,~<c\ we.l\ ~(' ~ +0-\-&0.\ o~ 3SS M;fl""te-S" l.Uo..+cr lU~
I"t\O~~'0 L1C:tAr' +~ro",----,\~oVvt-~G. pur~<, ?\Ar~c d1(;!eA 0."", So,M?}C~ wer<. Lolled-edt
(I-..r-1.2.52). D-cpfh}-o V-Jo..,-t~ wt\,~ ~ 1./1. I.-~.t}-S;-1-c. Pi;}-130 I.
'--________ -'IDo not touch this cell (SheetName)
White Mesa Mill
Field Data Worksheet for Groundwater
N
0
0
0
0
0
'0
2 of 2
Mill· Groundwater Discharge Permit Date: 03/22/2010 Rev, 6
Groundwater Monitoring Quality Assurance Plan (QAP)
~O.-~~IS;;~rj~ i WHITE ~!~~~~~I~~ MILL
MINES FIELD DATA WORKSHEET FOR GROUND WATER .... ~-------
Attachment 1
~ See instruction
Description of Sampling Event: I '3 r6' G \)..C(,-t e.r Gh 10"-0 +0 '{' M :J.-o II
Location (well name):IL-'_W_I...\~-..:..I&~ ________ --I
Sampler Name
and initials: tEllllCr l}o I )iJA~JTI-t
Date and Time for Purgind 8,/ 16/;t 0 I) and Sampling (if different) 1-1 ..::.~,,--J_n....:./_a._O_I_1 ___ ----'
Well Purging Equip Used: []I] pump o@ bailer
Sampling Event IQ\A~rkd.., Co)., lo(o~o("'"
pH Buffer 7.0 1 .0
Specific ConductanceI-I -,,~...;..q'l-,--___ ..... If.tMHOS/ cm
Depth to Water Before Purginm S b . bO
Conductance (avg)
Well Pump (if other than Bennet) 16-1"I.Andtos
Prevo Well Sampled in Sampling Event L-I ~ __ L.\_-_I_' ____ ---l
pH Buffer 4.0 4,0
Well Depth(O.Olft): I 137, SO
Casing Volume (V)
pH of Water (avg)
4" well:1 S2l.36 1(·653h)
3" Well:L-. ---=.0 __ .....1. (.367h)
Well Water Temp. (avg) l IS . b~ Redox Potential (Eh) I L..\?-j Turbidity ..... 1 ~_~...;....{, __ .......
Weather Condo Ext'l Amb. Temp. DC (prior sampling eventll J.5°
Time 1110.3 1 Gal. Purged 1 ~g 1 Time 1110'-) 1 Gal. Purged 1 q9 1
Conductance 1 ~()ll 1 pH 15."lD 1 Conductance 1 ~o73 1 pH 15.81 1
Temp.oC I )5,lq I Temp.oC I \'S.73 I
Redox Potential Eh (mV) I ~~I I Redox Potential Eh (mV) I '138 I
Turbidity (NTU) I ?~O I Turbidity (NTU) 12'13 1
Time I \lOS I Gal. Purged II 10 I Time 1110b I Gal. Purged I );l:j I
Conductance I :;),.D.5~ I pH 15.'10 I Conductance I Q...o37 I pH Is.G)! I
Temp.oC I )S. bO I Temp.oC I \5152> I
Redox Potential Eh (mV) I L\~\ I Redox Potential Eh (mV) I ~J~ I
Turbidity (NTU) I :30D I Turbidity (NTU) I ~~ I
White Mesa Mill
Field Data WorKsheet for Groundwater "1 of 2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged 1-1 .......;;\~;;....!..1 ___ .....
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = 1-.1 -..:..:..11 __ --'
gallon(s)
Time to evacuate two casing volumes (2V)
T = 2V /Q = 1 ~. bO 1
Number of casing volumes evacuated (if other than two)
If well evacuated to dryness, number of gallons evacuated
Name of Certified Analytical Laboratory if Other Than Energy Lab~ ..... ....;.#_-,I.~ ______ ----,
Sample Taken Sample Vol (indicate Filtered Preservative Preservati ve
Type of Sample if other than as Added
y N specified below) Y N Type y
VOCs EJ 0 3x40 ml 0 C)l HCL ~
Nutrients ql 0 100mI 0 ijI H2SO4 IZi
Heavy Metals 0 0 250ml 0 0 HN03 0
All Other Non Radiologics 0 0 250 mI 0 0 No Preserv. 0
Gross Alpha 0 0 1,000 ml 0 0 HN03 0
Other (specify) 54 · 0 Sample volume 0 ~ 0
C h\o('; c\c If preservative is used, specify
Type and Quantity of
Preservative:
Comment
~ See instruction
A('c<-JecA lin ~I't~ ~-t 1050. '""I4..nnt:1'" MJ. G-Glrr;V\ pre.sent' -+'0< ?\Ar~e. p",(~e. b~Gln ~t lOSS
Pv..(~ec}.. U)ell to( c;... -tohl of 1\ 1\-1:f\lAte.5. IJJ6.·-ftr h(i,,~ ~ brown <.olor -ro :+-. 'Pv..(~e4 '<:P"et7 cnd<:d
\ If..~ naC:" De~ +0 wo..-tu o-..f.ta fW~e \,!)c;..~ S7.3S.. L~.r+ 5 11<:. 0.1-1'310
Arr"i\le~ on site 1\.1-0717. JlllnllC'r to.f\cA &CJ.('(':'1 prd-c-Yl.}--h coll~d -SCll"'lplt'..). DeptI-. +v w~+(("
\.Jf.0 !:.b.b9. S"'rvlf>16 \t.)((~ bO\:)cA (AT-07.:z.1 . L<f't-~i+~ ~-t-07:;1.5.
L-________ ...JIDo not touch this cell (SheetName)
White Mesa Mill
Field Data Worksheet for Groundwater
N
0
D ·
q
0
0
~
2 of 2
Mill -Groundwater Discha rge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
ATTACHMENT 1 EiEN"~ONI)~~-~.-· WHITE MESA URANIUM MILL
Attachment 1 l:& See instruction
MINES FIELD DATA WORKSHEET FOR GROUND WATER
, ~ ..... -
Description of Sampling Event: 13 f h; Q",(A(tcr-c:.hlorOfo(P'1 ~Ol'
Location (well name ): .... I'_\JJ_"1_-_'4"'--________ ---1
Sampler Name
and initials: I --r;l1fler Rol],a~~/""1J
Date and Time for Purgingj g)) 71 ::LOI I and Sampling (if different) ;VIA
~-------~
Well Purging Equip Used:OOpump or@] bailer
pH Buffer 7.0 7·0
Specific ConductanceL...1 q.l...,;~:.....!1 ___ --IIfA.MHOS/ cm
Depth to Water Before PurgingJ 6 \ . 05
Conductance (avg)
Well Pump (if other than Bennet)
I -rWL)-'Y Prevo Well Sampled in Sampling Event 1....-_______ ---1
pH Buffer 4.0 11 ·D
Well Depth(O.Olft): 1 1~5_00
Casing Volume (V)
pH of Water (avg)
4" well:1 Y \. -zs 1(·653h)
3" Well:L.... _o __ --I.(.367h)
Well Water Temp. (avg) I lb. '3.2-Redox Potential (Eh) I ..... ~--,-t.t_g_---, TurbiditY ..... 1 _0 __ ---'
Weather Condo
Time I l~S~ I Gal. Purged I
Conductance I ?-734 I pHI 6·;;;z...~
Temp. DC I lb. '3::r: 1
Redox Potential Eh (mV) 1 ;tQg 1
Turbidity (NTU) 1 0 1
Time 1 1 Gal. Purged 1
Conductance 1 1 pH 1
Temp. DC 1 1
Redox Potential Eh (mV) 1 1
Turbidity (NTU) 1 1
White Mesa Mill
.. Field Data Worksheet for Groundwater
I
I
1
1
Ext" Amb. Temp. O( (prior sampling eventll 3J 6
Time Gal. Purged L...I ___ -I
Conductance pH 1'--__ --'
Temp. DC
Redox Potential Eh (m V) .... 1 ___ --I
Turbidity (NTU) I I
Time Gal. Purged .... 1 ___ --I
Conductance pHL....I ___ --I
Temp. DC
Redox Potential Eh (mV) IL--__ ----I
Turbidity (NTU)
1 of 2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged 1 I-_6 ____ ---' gallon(s)
Pumping Rate Calculation
Flow Rate (Q), in gpm. Time to evacuate two casing volumes (2V)
S/60 = 1 14.0 T=2V/Q= 1 c 1
Number of casing volumes evacuated (if other than two) 1-1 _0 ___ --'
If well evacuated to dryness, number of gallons evacuated 1-1 _0 ___ --'
Name of Certified Analytical Laboratory if Other Than Energy Lab~L.._#_/ A ______ ----I
Sample Taken Sample Vol (indicate Filtered Preservative Preservative
Type of Sample if other than as Added
y N specified below) y N Type y
VOCs 19 , 0 3x40 ml 0 m HCL EJ '
Nutrients ~ 0 .100ml 0 ~ H2SO4 ~
Heavy Metals ,0 0 250ml 0 0 HN03 0 ,.
All Other Non Radiologics 0 0 250ml 0 0 No Preserv. 0
Gross Alpha 0 0 1,000 ml 0 0 HN03 0
Other (specify) "E 0 Sample volume 0 ~ 0
L. hlor',ac.. If preservative is used, specify
Type and Quantity of
Preservative:
Comment
~ See instruction
Arr;\Jed. ell s,··h: 6..1-1353. 16..Mer 6..nJ &(A,(f:fl pr~seflt +0(" ~a..Il1F);~ e\Jent.
+OD~ dey>th +D \.0~tcr (AnA c.o)lectca .so.~'Plc:'S ",,-t-1'-100, wC\.Tc, WCU cl~(".
L.c+t s Jc. A1-140 LJ .
L--________ ....IIDo not touch this cell (SheetName)
White Mesa Mill
Field Data Workstieet for Groundwater
N
0
0
0
0
0
~
2'of.2
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
ATTACHMENT 1 1::.soJ)U ~INES ~j FIELD DATA WORKSHEET FOR GROUND WATER
Description of Sampii~g Event: 1 ~ (dj Q\N.'-.('+eo. cJ:; I orD+--;'r I'V) !:(o II
WHITE MESA URANIUM MILL
Attachment 1
~ See instruction
Location (well name): .... 1 T_\N_~.;....-_:2_0 ________ --J
Sampler Name
and initials: 1 ==r';Y1l1er fiD/ /.Jl4)lflj)~
Date and Time for Purging/ «/17/:J...D)) and Sampling (if different)
Well Purging Equip Used:~pump o@ bailer Well Pump (if other than Bennet) IGon1/l7l.ADV\~
Sampling Event IQv..Cl.r-h::('11 CJ1)Drat~(f1'\ Prevo Well Sampled in Sampling Event I 'T'WL\ -;2.
pH Buffer 7.0 /.0 pH Buffer 4.0 q-o
Specific ConductanceI-I _~_q_q ___ ....JII-lMHOS/ cm Well Depth(O.Olft): 1 ) Db.CO
Depth to Water Before Purging/ bg.L} }
Conductance (avg)
Well Water Temp. (avg) I Ib·~7
Weather Condo
Time /1;2.3'1 1 Gal. Purged 1
Conductance 1 3C.Lj:;,l.. 1 pH 1
Temp.oC I 1(,:;2.7 1
Redox Potential Eh (m V) 1 ~$$ () 1
Turbidity (NTU) 1 D 1
Time 1 1 Gal. Purged 1
Conductance 1 1 pH 1
Temp.oC 1 1
Redox Potential Eh (mV) 1 1
Turbidity (NTU) 1 1
White Mesa Mill
Casing Volume (V)
pH of Water (avg)
4" well:1 ~Y.5y 1(·653h)
3" Well:l-. _0 __ ....J. (.367h)
~·81
Redox Potential (Eh) 1 .!2..go Turbidity 1-1 _0 __ ----'
Ext'l Amb. Temp. O( (prior sampling event)1 '30·
1 Time Gal. Purged 1-1 ___ ....J
5·ZI 1 Conductance pH L-I __ ----I
Temp.oC
Redox Potential Eh (m V) 11--__ ---'
Turbidity (NTU) 1 1
1 Time Gal. Purged 1'-___ --'
1 Conductance pH 11--__ ----1
Temp.oC
Redox Potential Eh (mV) 1-1 ___ --I
Turbidity (NTU)
1
Field Data Worksheet for Groundwater 1 of 2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged 1 ..... __ 0 ___ --' gallon(s)
Pumping Rate Calculation
Flow Rate (Q), in gpm. Time to evacuate two casing volumes (2V)
S/60 = I -10 T=2V/Q= 1 0 1
Number of casing volumes evacuated (if other than two) o
If well evacuated to dryness, number of gallons evacuated
Name of Certified Analytical Laboratory if Other Than Energy LablL.-.M_V4-=--______ ....J
Sample Taken Sample Vol (indicate Filtered Preservative Preservative
Type of Sample if other than as Added
y N specified below) y N Type y N
VOCs ~ 0 3x40 ml 0 rn HCL 19 0
Nutrients lE ' 0 100ml 0 1ZJ H2SO4 ~ 0
Heavy Metals 0 0 250ml 0 0 HN03 0 0
All Other Non Radiologics 0 0 250ml 0 0 No Preserv. 0 0
Gross Alpha 0 0 1,000 ml 0 0 HN03 0 tJ ·
Other (specify) ~ 0 Sample volume 0 lEI 0 ill
c::. h \or ~ J~ If preservative is used, specify
Type and Quantity of
Preservative:
Comment
~ See instruction
A((i.Jt:J.. on .sit~~'} 1~3. -ro.l1n-cf" Mil &--<A((,i" prt:scn1' +or SdI""" plJ -e..Jcnt.
+ooK Dep1"-'-' -to wGl.1-~r o.nO-.sG\.T'1 pic;. wert:.. colled·cd ~+ 12.\.10 # l.0~+~i Wli.S
C }~o.( . L-e.-t1-s;t <, 60.+ 1:2. Y3
'--________ --'IDo not touch this cell (SheetName)
White Mesa Mill
Field Data Worksheet for Groundwater 2 of 2 .-
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
~OENISOn~'~ ATTACHMENT 1
WHITE MESA URANIUM MILL
Attachment 1
~ See instruction
MINES FIELD DATA WORKSHEET FOR GROUND WATER .... _t . '_
Description of Sampling Event: ';iDl Gv-arfu Chloro+ofM ;;ZOOil
Location (well name):l iW\..I-;J,,) ~--~------------------~
Sampler Name
and initials: l 4"o..t1 t1c.r Uol/.·J~JTIl
Date and Time for PurgingJ,-_g_J_lb_I._~_O_I _1 ___ ----' and Sampling (if different) I r.tJ 1'1/;2.01 \
Well Purging Equip Used: ~pump o@ bailer Well Pump (if other than Bennet)
Prey. Well Sampled in Sampling Event L..I T_W_Y_-_IO ______ ----J
pH Buffer 7.0 7.0 pH Buffer 4.0 q.o
Specific ConductanceL-1 _q_C\9 ___ ----'I""MHOS/ cm Well Depth(O.Olft): I l~I.OO
Depth to Water Before PurgingJ SL\ .7Y 4" well:I43.::2.C:, 1(·653h)
3" Well: 0 (.367h) L....-. __ ---I
Casing Volume (V)
Conductance (avg) pH of Water (avg) I
Well Water Temp. (avg) I 1 ~ .1{) Redox Potential (Eh) IL-§_O __ --' TurbiditYL-1 -=5=.( ..... )_--'
Weather Condo Ext'l Amb. Temp. O( (prior sampling event)I 30b
Time 113'i-b 1 Gal. Purged 1 "''' 1 Time 1)3'17 1 Gal. Purged 1 77 1
Conductance 1 3~b~ 1 pH 1 (·Q7
1 Conductance 134 /) 1 pH 1 b.LJ9 1
Temp. DC I IC · 7]" 1 Temp. DC 11G·7QO 1
Redox Potential Eh (m V) 1 3b9 1 Redox Potential Eh (mV) 1 '3S 6 1
Turbidity (NTU) 1 ~.\ 1 Turbidity (NTU) 15.0 J
Time 11'3 q is 1 Gal. Purged 1 ~~ 1 Time 113qq 1 Gal. Purged 1 1r 1
Conductance 1 '1,'179 1 pH 16·9g 1 Conductance 1 39sR 1 pH 1 b.Y$' 1
Temp. DC 116.(>7 1 Temp. DC 1 1". :bS 1
Redox Potential Eh (m V) 1 343 1 Redox Potential Eh (mV) 1 3LJb 1
Turbidity (NTU) 1 ~.Q 1 Turbidity (NTU) 1 5 Q 1
VVhite Mesa Mill
'Field'Data Worksheet for Groundw'ater 1 of 2
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged 1'--4 ..... 4..J.--___ --'
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = 1.-1 _11 __ -,
gallon(s)
Time to evacuate two casing volumes (2V)
T=2V/Q= 1 7.8'-1
Number of casing volumes evacuated (if other than two)
If well evacuated to dryness, number of gallons evacuated
Name of Certified Analytical Laboratory if Other Than Energy Lab~,-_;.J_/_A ______ ---,
Sample Taken Sample Vol (indicate Filtered Preservati ve Preservative
Type of Sample if other than as Added
y N specified below) y N Type y
VOCs D§ 0 3x40 rnl til I2J. HCL ~
Nutrients rn 0 . 100 rnl 0 121 H2SO4 ~
Heavy Metals 0 0 250 rnl 0 0 HN03 0
All Other Non Radiologies 0 0 250 rnl 0 0 No Preserv. 0
Gross Alpha 0 0 1,000rnl 0 0 HN03 0
Other (specify) rlJ 0 Sample volume 0 ~ 0
Ch\oc,~-( If preservative is used, specify
Type and Quantity of
Preservati ve:
Comment
~ See instruction
A{r·I\J(.~ on s;tc <'1.1 13~. ';::nl1~r 0..(10-(,..I).(,..;n pre.sc:n.t +0 pv.f'~e. IWLJ-;U. Pl..\~e. bt)o..l1 a..t
}3~ O. 'P1.\(~e.a \N<:.1I ~, 0... 1-ot'" \ ot ~ Mi n lAte.s . w~+a 1.0c:t.$ cl.ea.(" th,..o~'h()"'t-p\;\rje.
P~(5-!. e."d~.c\ "'-1 13Ll ~\ D~p1-'" h \,)l\..·h~:(' we,...) '-1.1.3 L~+~ 51+< ~+ l'3:JY.
Aff,-.)ea. 0(\ ~\i-~ ()...t 01.50. '''''I1.e.r tIVI~ 6-r>.rri(l pr~~eni-+0 '-oiled S"MF)~~' De.p-\-h 1-0 \N(}..h( w(A~
SI..\·c:,O >~fY\pl~~ We.re. b(h~l-lt\ 111.+ D'155 . Lef.}-,S,'+c... ",t 0751:$
L-... ________ .....IIDo not touch this cell (SheetName)
White Mesa Mill
Field Data Worksheet for Groundwater
N
0
0
0
0
0
[j
2of2
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
ATTACHMENT 1 OENI~:J)~ ~l WHITE MESA URANIUM MILL
Attachment 1
~ See instruction
. MINES . FIELD DATA WORKSHEET FOR GROUND WATER
Description of Sampling Event: 1 3("~ QuC\r+er CJ'llor-o-to('fI"'I :l.OI}
Location (well name):L-I_I_VJ_y_-_;l.;t ________ ---J
Sampler Name
and initials: I i'"~nnu no}].J~/TH
Date and Time for Purging/L-g.:::..J_l_~_J :;._0_11 ____ ---' and Sampling (if different) 1 ~J II I J;LD 1/
Well Purging Equip Used: [][]pump or@] bailer Well Pump (if other than Bennet) 1 &t"l.AfI J+b..s
Sampling Event 1 Qv.o.l"'+crb cJ, lorC5Qrrv) Prevo Well Sampled in Sampling Event 1L....-,_W_L\_-_18 ____ ---J
pH Buffer 7.0 ..... 1 _1_.0 ___ ---'
Specific Conductance L-I q_9_4-=--__ ---'1 fA,MHOS/ cm
Depth to Water Before PurgingJ 51..\.0 D
Conductance (avg) ..... I -"'.s=~"-=o........; ____ ---'
pH Buffer 4.0 L\.O
Well Depth(O.Olft): 1 \ )3. 50
Casing Volume (V)
pH of Water (avg)
4" well:/38.6.5 /(.653h)
3" Well:L-. _o __ .....1.(.367h)
b.3D
Well Water Temp. (avg) 1 1 Co .S~ Redox Potential (Eh) 1 2, 'n TurbiditYL-1 q...:..-__ .......
Weather Condo Ext'l Amb. Temp. O( (prior sampling event)1 :lO8°
Time 1 ,~C>\ I Gal. Purged I SS I Time p;2.0~ I Gal. Purged I bb I
Conductance I SYL\~ I pH I b .'3:;1.. I Conductance I ~X>.\ I pH I ~.30 I
Temp.oC I lb.gC;; I Temp.oC I n;·6S I
Redox Potential Eh (mV) I q 1'1 I Redox Potential Eh (mV) I qOO?: I
Turbidity (NTU) I q,l I Turbidity (NTU) 1'1,0 I
Time I l~03 I Gal. Purged I 77 I Time I );tog I Gal. Purged I g6 I
Conductance 151 g;,z.. I pHI ".')0 I Conductance l E:I b3 I pH I ~.~7 I
Temp.oC 11(0;.59 I Temp.oC I t b. ""5 I
Redox Potential Eh (mV) I .391 I Redox Potential Eh(mV) I 3;G,? I
Turbidity (NTU) I 9.1 I Turbidity (NTU) I 9·) I
White Mesa Mill
Field Data Worksheet for Groundwater 1 of 2 .
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged L-I ...lc$S'-=-___ --I
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = 11--_1_' __ ----I
gallon(s)
Time to evacuate two casing volumes (2V)
T = 2V/Q = 1 7.0.{, 1
Number of casing volumes evacuated (if other than two)
If well evacuated to dryness, number of gallons evacuated
Name of Certified Analytical Laboratory if Other Than Energy LablL-_.M._'I_A _______ --'
Sample Taken Sample Vol (indicate Filtered Preservative Preservative
Type of Sample if other than as Added
y N specified below) y N Type y N
VOCs "Ill D 3x40 ml D Il!J HCL !J D
Nutrients ~ D 100ml D ~ H2SO4 ~ D
Heavy Metals D D 250ml D D HN03 D D
All Other Non Radiologics D D 250ml D D No Preserv. D D
Gross Alpha D D 1,000 ml D D HN03 D D
Other (specify) rn D Sample volume D W D ~
Ch' ori d< If preservative is used, specify
Type and Quantity of
Preservative:
Comment
~ See instruction
Afr-;\leo.. 0(\ 5,ih c..1-\ 15~. lAI'ln<.(' iAntA CrOl.(r-:", ?rc.s-en-t to P"''j~ 1\)..)"1-Z2.. Pu.~~~ bejM 0..+ 1)5,.
P\>..("~-e~ ~c'l ~O( fA. +0+,,1 of' 8 M;nLA-t~. \A)o..1-u w~ clear thrl)~~o\},.1--tht' ru..'(1-e.,
. Pv..'(~t:. ~(\c\-e.~ (.>J '~04 . O~?-rh 1-0 'W¢..-1-« ~+t~( P"'~ e Wo.~ "''-'13. L ~·H" sitt: b.1"' 1;;2.0
Arr,IJ!cJ.., Dn Sli-~ ~t 072'1 . IA-Me( "'-11A. &r;.(r:f\ p .... -e.~el'\.}--..for ~"'f"'I pl:~ -e~"t. i~ept~ +0 w",t-("r wt
S3.q~ . .s"'fVlp1e!:. w~c-~ b,..:l~~ ~1-073's. L~~ s,l+c.. "'+ 0737
'--_______ -----'IDo not touch this cell (SheetName)
White Mesa Mill
Field Data Worksheet for Groundwater 2 of 2
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
ATTACHMENT 1 -OE~~s~J)J~l.
MINES ~ FIELD DATA WORKSHEET FOR GROUND WATER
WHITE MESA URANIUM MILL
Attachment 1
~ See instruction
Description of Sampling Event: 13 rli Q\Aa.rfc(' c);lol'"o+oryV\ ;L()II
Location (well name):L-1 _T_W_L...:.\ _-_:;l,_3 ________ --'
Sampler Name
and initials: tT~nnu Holl;l~..:1ln.j-
Date and Time for Purginm g 11.5 7 ~o J 1 and Sampling (if different) 1 ..... [S"""/-+) ..... 6<-=.h=--D;..:..1/ ___ ---'
Well Purging Equip Used:~pump o@ bailer Well Pump (if other than Bennet)
Sampling Event IQv.(i.(+uG C.~\O("Of()(M Prevo Well Sampled in Sampling Event [ Iv...> L\ -)L.(
pH Buffer 7.0 7.D pH Buffer 4.0
Specific ConductanceL-1 -J4L...;Q.-;.1 ___ ...... I!!MHOS/ cm Well Depth(O.Olft): L-II_lq_._D_D __ --I
Depth to Water Before Purgingj GS . q 0 4" well:1 3 \.7;3 1(·653h)
3" Well: C> (.367h)
'--------'
Casing Volume (V)
Conductance (avg) 11-..:3 ...:.7-=.'1 .... 9 _____ __' pH of Water (avg) L-I "'-S--=.g;....;~'___ ____ __'
Well Water Temp. (avg) 1 lY.lS4 Redox Potential (Eh)IL-....;..\q...:...q..:.....-_ ...... TurbiditYL-1 (%);t ___ --I
Weather Condo Ext'l Amb. Temp. °C (prior sampling event)l~b b
Time 1 \~11 I Gal. Purged I qy I Time I l~l~ I Gal. Purged 1.55 I
Conductance I 3"11i3 I pH 15.$'1 I Conductance I :37~3 I pH Is.qo I
Temp. DC 11l1·Q7 1 Temp. DC 114 ·10 1
Redox Potential Eh (mV) 1 2-,0d-. 1 Redox Potential Eh (mV) 1200 1
Turbidity (NTU) l ~lb.1 1 Turbidity (NTU) I ;;;;'0_0 I
Time 1 1~1~ 1 Gal. Purged 1 b~ 1 Time 11d.-IY 1 Gal. Purged 1 77 1
Conductance 1 :379 q 1 pH 1.5 .qi5 1 Conductance 1 3RIL 1 pH 1 S·~2 1
Temp. DC 1 Itt .~:5 1 Temp. DC 1 J9.SQ 1
Redox Potential Eh (mV) 1 19~ 1 Redox Potential Eh (mV) 1 197 1
Turbidity (NTU) l,Xlq .1 1 Turbidity (NTU) 1.;>.30-1 1
White Mesa Mill
Field Data Worksheet for Groundwater 1 of 2
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged 1-1 .....,;7....:7:.....-___ ....J
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = L-I _,_\ __ --'
gallon(s)
Time to evacuate two casing volumes (2V)
T = 2V/Q = 1 E>.77 1
Number of casing volumes evacuated (if other than two)
If well evacuated to dryness, number of gallons evacuated
Name of Certified Analytical Laboratory if Other Than Energy LablL...-;v_II'+ _______ ....J
Sample Taken Sample Vol (indicate Filtered Preservati ve Preservative
Type of Sample if other than as Type Added
y N specified below) y N y
VOCs III 0 3x40 ml 0 rB . HCL ~
Nutrients tl 0 100ml 0 rpJ H2SO4 ~
Heavy Metals 0 0 250ml 0 0 HN03 0
All Other Non Radiologics 0 0 250ml 0 0 No Preserv. 0
Gross Alpha 0 0 1,000 ml '0 0 HN03 0
Other (specify) rn 0 Sample volume 0 KI 0
Ch\o(;~( If preservative is used, specify
Type and Quantity of
Preservative:
Comment
~ See instruction
A((';\Je~ on ~;tc.. lA.\ l:lO.;z . ~t1f\-t'''' 0\Y1b\ &0.((;/'1 ?(e..se.rrt--+0 J~e--)wL I .... .:l.3. Pv.~e b~h
lA~ J2.07 , P\A.(')e~ lN~J\ foc tA. +o}AI of' Seuen WJ;nV\+~~. ?",r£\~ ended ttt 'J:2.14.
"0CA..-t-a I.J.J(;U J.' + 'th b <J
I( ~ WI "\ rO\J:lr') c.olor. \::kp.J-h 1'1> \"JiA-1 <:r' '-c-~ 71, g~. /..~Jt-slfe-tA..)-1::2./0/.,
'R~"'I'\ PGI.'rY)c(' on ~itc. to c.oI1e& 5~yv\p)eS. Dcpf!l +D \,)Q:ter-w~ 65.3'.
~(/'M pk~ ~ef~ bG\:\-eq o.n~ (o)lec.t~J t'i~ 131.5.
L-.. _______ --->IDo not touch this cell (SheetName)
White Mesa Mill
Field Data Worksheet for Groundwater
N
0
0
0
0
0
,; lSI
2 of 2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
ATTACHMENT 1 l~:,som~l UINES :::J FIELD DATA WORKSHEET FOR GROUND WATER
WHITE MESA URANIUM MILL
Attachment 1
~ See instruction
Description of Sampling Event: 13 0 :)\ Q",o.f+Gf" Gh I orof'orrn ~o II
Location (well name):L-1 _J_W_Y_-_2._L_I ________ ----I
Sampler Name
and initials: l-ro..nner l-lo) /,'CX"'-!:/IJ'H-
Date and Time for Purgingj1-8~/:.....;.)....;..b:....;/~:.....;.O_ll ____ ___I
Well Purging Equip Used: 1m pump or@] bailer
Sampling Event IQ"""ri--uk1 c.h\O(o.fofM
pH Buffer 7.0 L-1_7_._0 ___ ....J
Specific Conductancei-I ....;4_q....;~ ___ ....... If.tMHOS/ cm
Depth to Water Before Purgin~ S b . L\ ~
Conductance (avg)
and Sampling (if different) 1 fS / /1 } ~O, I
Well Pump (if other than Bennet) 1 &nM10\+OS
Prev. Well Sampled in Sampling Event l-rw y .. .;2. Y R
pH Buffer 4.0 '1.0
Well Depth(O.Olft): 1 \ 1~ . .50
Casing Volume (V)
pH of Water (avg)
4" well:13b. ('.3 1(.653h)
3" Well: 0 (.367h) L.....-~_----I
Well Water Temp. (avg) 1 J lL q~ Redox Potential (Eh) L-I ~....;.....O..;...I _----I TurbiditYL-1 _0..;......._----1
Weather Condo Ext'l Amb. Temp. O( (prior sampling eventll 11°
Time 101 17 I Gal. Purged I bb I Time I071g I Gal. Purged I 77 I
Conductance I GlbOc{ I pH I C;·~ I Conductance I qb6\ I pHl b .~ I
Temp. DC 11S.DO I Temp. DC 1'4.91 I
Redox Potential Eh (m V) I qlD I Redox Potential Eh (mV) I Qo3 I
Turbidity (NTU) I 0 I Turbidity (NTU) I 0 I
Time 10/\9 I Gal. Purged I lSg I Time I 07~6 I Gal. Purged I 44 I
Conductance 1 9h~O I pHI (;.23 I Conductance 19b89 I pH IG.X3 I
Temp. DC I 1s.00 I Temp. DC I IS.LiZ) I
Redox Potential Eh (m V) I 3~7 I Redox Potential Eh (mV) I 3'iC I
Turbidity (NTU) I 0 I Turbidity (NTU) I 0 I
White Mesa Mill
Field Data Worksheet for Groundwater 1 of 2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged .... 1 _Gl....;,Cj ......... __ ---'
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = 1...-1 _'=--1 __ --'
gallon(s)
Time to evacuate two casing volumes (2V)
T = 2V/Q = 1 ~"(;O 1 (;.bb
Number of casing volumes evacuated (if other than two)
If well evacuated to dryness, number of gallons evacuated
Name of Certified Analytical Laboratory if Other Than Energy Lab~,---;.J_/_A ______ -l
Sample Taken Sample Vol (indicate Filtered Preservative Preservati ve
Type of Sample if other than as Added
y N specified below) y N Type y N
VOCs -m . 0 3x40 ml 0 ~ HCL ~ 0
Nutrients !pi 0 100 ml 0 ~ H2SO4 '29 -D
Heavy Metals 0 0 250ml 0 0 HN03 0 0
All Other Non Radiologies 0 0 250ml 0 0 No Preserv. 0 0
Gross Alpha 0 0 1,000 ml 0 0 HN03 0 0
Other (specify) fiJ 0 Sample volume 0 ~ 0 ~
C h \ ()("', ~( If preservati ve is used, specify
Type and Quantity of
Preservative:
Comment
~ See instruction
A,,;'\l~~ On ~;+~ o...t 070f:,. \o.M-e.r o.ntA &o.r('\n prG,S<.nt +0 f\J\('~'C TwLj -~~. ?'A~<" b~~(l 0.1' 0711
PV\r~-e.~ ~)I .tor 0.... ·toi-o.) of '\ tyl;Y1lA tes.. VJCA.tcr ~tr..rtG~ {)o.. 'iHle m:J!j bV\+ GJ-e.o..('~.
f' V\.r~~ el'lckt>., (/J 07 ".,t). L-eft ~~Te ~t 07:1.:5 , Pep'" +1:) \).),,~.r w",s, 11.L)O
A('(';~e~ On s;1e ,,} O~)q . }(;"I'II\< .... p..ntk G-Mr;" p(,G~e.Y\+-1-0 c,~ \I-e.c.t-~Af'lpl~5>. D ~p1-~ -to wcrh:r
\NQ-.. Sc",Sb . ~"",""pl~!:. W~("c-bo.;)-(,a 0.1-o hAS. Let} ~It~ 0..1-OG,;;J..7
'---_______ ---'IDo not touch this cell (SheetName)
White Mesa Mill
Field Data Worksheet for Groundwater 2 of 2
Mill · Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
ATTACHMENT 1 1:~~~~~Ni)]ll l~.~ .. M~E~ FIELD DATA WORKSHEET FOR GROUND WATER
WHITE MESA URANIUM MILL
Attachment 1
~ See instruction
Description ; Sampling Event: 13f"b' Qv.,,(".h:( Ghlorof'ocTVI 2.0\1
Location (well name) : .... 1 ----'T'-w_y-'--~ ..;;;).._Y...l,....!..JR"--______ ---'
Sampler Name
and initials: fGnt1~'" Ho lJ;J"'~/nt
Date and Time for Purginm ~ /1.6 I;;, 0 I , and Sampling (if different) .... 1 ::.,..N.,.;..'I.:....:.A ______ ---I
Well Purging Equip Used:@]pump or@] bailer
pH Buffer 7.0 7.0
Specific Conductance .... 1 _q...!.q..:...~.:.....-__ --II/!MHOS/ cm
Depth to Water Before Purging/~_() __ ---'
Conductance (avg)
Well Pump (if other than Bennet) 1 b(\AI'uHoS
Prevo Well Sampled in Sampling Event 1 .... '_W_4_-_~ _____ ____'
pH Buffer 4.0 l4.D
Well Depth(O.Olft): .... 1 _0 ___ --1
Casing Volume (V)
pH of Water (avg)
4" well:~_o __ -fI(.653h)
3" Well:. 0 . (.367h)
5,\s
Well Water Temp. (avg) 1~·1S Redox Potential (Eh)1 366 TurbiditYL...1 _O __ ....J
Weather Condo Ext" Amb. Temp. °C (prior sampling event)1 15°
Time 1 0('38 I Gal. Purged I ) 2S 0 I Time I I Gal. Purged I I
Conductance I J.g I pHl s.IS I Conductance I I pH I I
Temp.oC 1d$,75 I Temp.oC I I
Redox Potential Eh (mV) I '3 kg I Redox Potential Eh (mV) I I
Turbidity (NTU) I Q I Turbidity (NTU) I I
Time I I Gal. Purged I I Time I I Gal. Purged I I
Conductance I I pH I I Conductance I I pH I I
Temp.oC I I Temp.oC I I
Redox Potential Eh (mV) I I Redox Potential Eh (mV) I I
Turbidity (NTU) I I Turbidity (NTU) I I
White MesaMili
Field Data Worksheet for Groundwater 1 of 2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged 1-1 ---=~...;.D,;,...O~ __ ....I
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = L-I --!..l' Il.-_-----I
gallon(s)
Time to evacuate two casing volumes (2V)
T=2V/Q= 1 0 I
Number of casing volumes evacuated (if other than two) 1-1 ",,;u:::"""" __ ...J
If well evacuated to dryness, number of gallons evacuated () '----_ .....
Name of Certified Analytical Laboratory if Other Than Energy Lab!I-#;.......<...I..:....ft'--______ ....I
Sample Taken Sample Vol (indicate Filtered Preservative Preservative
Type of Sample if other than as Added
y N specified below) Y N Type y N
VOCs lSI 0 3x40 ml 0 ISJ HCL §g 0
Nutrients E2I 0 100ml 0 [)-H2SO4 rn 0
Heavy Metals 0 0 250ml 0 0 HN03 0 0
All Other Non Radiologics 0 0 250 rnl 0 0 No Preserv. 0 0
Gross Alpha 0 0 1,000 rnl 0 0 HN03 0 0
Other (specify) I Sample volume .~ 0 0 rn 0 00
Ch\o,ia( If preservative is used, specify
Type and Quantity of
Preservative:
Comment
~ See instruction
A-rr;\le.d on ~;+e ",t 0"15. )~I'\r'\cr o.n~ ('-fA{rir) ?u>ef\t -to rerfotl'Y\ '(';t)..$G\-t-e. R,'n5"'+c b~JGlI) o,t
Ob~. t\.\I""l?e~ SD (""l1orls of Ac:a \0c...tu1 SO &",I/OY/.5 o.f .sD~? w"'·h .. ,.... "nd }DO ~c..l/on~ of
DJ. Qo-.+c:.r. Ri(l"so...1-G cnde~ c..fl~ .s6i.f'V)ple~ lNerc (.olJ~GtcJ ~t' Of-YO. Lc-f+ Sift £\1-O'{'lJ3.
'-________ ..... IDo not touch this cell (SheetName)
White Mesa Mill
Field Data Worksheet for Groundwater 2 of2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
OENISONI)J ~ ATTACHMENT 1 Attachment 1
WHITE MESA URANIUM MILL ~ See instruction
MINES FIELD DATA WORKSHEET FOR GROUND WATER
Description oi ;~mpling Event: 13i" (J\ Q\JI.",r+c:r CO h lOt"o{bfM ~ol\
Location (well name): ...... 1 T_W_l.._I _-_;l.S _________ ---I
Sampler Name
and initials: 11"nnu 'Ao)},J41r7TlJ
Date and Time for PurgingJ g / \ ~ / J)...D II and Sampling (if different) &/]'/.:2.611 ~~------~
Well Purging Equip Used: 00 pump or@] bailer
pH Buffer 7.0 7.0
Specific ConductanceL-I---'4....;.99-'--__ ---'I~MHOS/ cm
Depth to Water Before PurgingJ~J3t 1./ 0
55. Y.(,
Conductance (avg) 3125
Well Pump (if other than Bennet) lG-flAndfo.s
Prevo Well Sampled in Sampling Event I -rWLJ '-cX3
pH Buffer 4.0 q.o
Well Depth(O.Olft): 1 }3y.~a
Casing Volume (V)
pH of Water (avg)
4" well:1 1l5 .:X,7 . 1(.653h) 51. gO
3" Well: ....... _O __ ......1.(.367h)
Well Water Temp. (avg) 1 1.5.35 Redox Potential (Eh) I,-~_L\_b""","--_""" Turbidity I ~ l-.:J
Weather Condo
Time 1 1300 I Gal. Purged I 77
Conductance I )If)..Y I pH I ~.b'd...
Temp. DC I 1'5.";)1 I
Redox Potential Eh (mV) I ~~C:. I <
Turbidity (NTU) I :20. I I
Time I I~O;l.". I Gal. Purged I 49
Conductance I 31?-,5 I pH I 6 .(;').
Temp. DC I 15 .~q I
Redox Potential Eh (mV) I ~'Y'i I
Turbidity (NTU) I ;2.?. .1 I
White Mesa Mill
Field Data Worksheet for Groundwater
I
I
I
I
Ext'l Amb. Temp. °C (prior sampling event)1 :;J.,Jo
Time Gal. Purged L-I Z_g __ ----'
Conductance pH I b.b'
Temp. DC
Redox Potential Eh (mV) I 35t.1
Turbidity (NTU)
Time I I~03
Conductance I 3)~J
I~J·u I
Gal. Purged ...... 11_'_0 __ ---'
pHI b.'1
Temp. DC I 15 .3~
Redox Potential Eh (mV) L-13"""o~7:--_......I
Turbidity (NTU) 1X4 ·6
1 of 2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged L..I ....;,J..;...10 ____ ....
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = 1L----..:.11 __ ----J
gallon(s)
Time to evacuate two casing volumes (2V)
T = 2V /Q = I zL:r.~ -I q . L\ 1
Number of casing volumes evacuated (if other than two)
If well evacuated to dryness, number of gallons evacuated
Name of Certified Analytical Laboratory if Other Than Energy Lab!L.._,v,_'/_A ______ --'
Sample Taken Sample Vol (indicate Filtered Preservative Preservative
Type of Sample if other than as Added
y N specified below) y N Type y N
VOCs llJ 0 3x40 rnl 0 19 HCL KI 0
Nutrients fi] 0 100 rnl 0 tJ ' H2SO4 r9 0
Heavy Metals 0 0 250 rnl 0 0 HN03 0 0
All Other Non Radiologies 0 0 250 rnl 0 0 No Preserv. D. 0
Gross Alpha 0 0 1,000 rnl 0 0 HN03 0 0
Other (specify) 1:8 0 Sample volume 0 ~ 0. ill
C\'lor; J( If preservative is used, specify
Type and Quantity of
Preservative:
Comment
~ See instruction
'--_______ --IIDo not touch this cell (SheetName)
White Mesa Mill
Field Data Worksheet for Groundwater . 2 of 2
Mill -Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan (QAP)
Date: 03/22/2010 Rev. 6
Attachment 1
L~ See instruction
Location (well name ):L..I _1_1.,.)_4.:..--_2_" ________ ---'
Sampler Name
and initials:
Date and Time for Purgingj g / I{;' ):;"0 I J and Sampling (if different) lL..::g::..:.J_l1--:....;Ig..~O_1\ ___ ____I
Well Purging Equip Used:~pump or@] bailer Well Pump (if other than Bennet) 1 &rv.n ~.f()~
Sampling Event IQ"'CA.(te.r \~ C h I Qro1Onv) ! 'TwLl -2L \ Prevo Well Sampled in Sampling Event 1....-_______ ---'
pH Buffer 7.0 1'---'-7 ...;...0 ___ ---' pH Buffer 4.0 y,o
Specific Conductance ..... 1 q...;..4 ..... 4 ___ --->1 !!MHOS/ cm Well Depth(O.Olft): 1 .8".00
Depth to Water Before Purginm b'-\,O.3 4" well:! J t1.34 !(.653h)
3" Well: 0 (.367h) 1....---=-_----1
Casing Volume (V)
Conductance (avg) pH of Water (avg) 1-1 __ 3_, 3~3 __ ~_.....J
Well Water Temp. (avg) 1 )S.f,Z> Redox Potential (Eh) 1 q l\3 Turbidity ..... 1 _:;J.._,_l _---..I
Weather Condo Ext'J Amb. Temp. DC (prior sampling event)1 ISO
Time 1 O"15~ 1 Gal. Purged 1 '" 1 Time 1 1 Gal. Purged 1 1
Conductance 1 f,5~~ 1 pH 1'3.83 1 Conductance 1 1 pH 1 1
Temp.oC I l5.SJ$ I Temp.oC I I
Redox Potential Eh (mV) I '1'-\':> I Redox Potential Eh (mV) I I
Turbidity (NTU) I 2. \ I Turbidity (NTU) I I
Time I I Gal. Purged I I Time I I Gal. Purged I I
Conductance I I pH I I Conductance I I pHI I
Temp.oC I I Temp.oC I I
Redox Potential Eh (mV) I I Redox Potential Eh (mV) I I
Turbidity (NTU) I I Turbidity (NTU) I I
White Mesa Mill
Field Data Worksheet for Groundwater 1 of 2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged I If:>..50
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = 1.-1 ----'.1_1 __ --'
gallon(s)
Time to evacuate two casing volumes (2V)
T=2V/Q= I ~.b6 I
Number of casing volumes evacuated (if other than two) I LlS
If well evacuated to dryness, number of gallons evacuated 1 1f),f,()
Name of Certified Analytical Laboratory if Other Than Energy Labl .... _.tI,_'/~ _______ -'
Sample Taken Sample Vol (indicate Filtered Preservati ve Preservative
Type of Sample if other than as Added
y N specified below) Y N Type y N
VOCs ~ 0 3x40 ml 0 ~ HCL &I 0
Nutrients D1 0 100ml 0 rn H2SO4 ~ 0
Heavy Metals 0 0 250ml 0 0 HN03 0 0
All Other Non Radiologies 0 0 250ml 0 0 No Preserv. 0 0
Gross Alpha 0 0 1,000 ml 0 0 HN03 0 0
Other (specify) ~ 0 Sample volume 0 Ci§ 0 D§
chIO'l'd( If preservative is used, specify
Type and Quantity of
Preservative:
Comment
~ See instruction
L-_______ ---IIDo not touch this cell (SheetName)
White Mesa Mill
Field Data Worksheet for Groundwater 2 of 2
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
ATTACHMENT 1 ~~::~j)~~ WHITE MESA URANIUM MILL
Attachment 1
~ See instruction
MINES FIELD DATA WORKSHEET FOR GROUND WATER
Description of Sampling Event: 1 '::/'" a"",o.rt~(" C'hlorl):f'orM ;toll
Location (well name): .... 1 _,'-w_I4'--....;:b;....O ________ -'
Sampler Name .
and initials: I'''''-;=-''' n-n-e-:(';-;~t+o"""I;-\ ,""ia-:-IA. .... ~-:/i'z::;:o't:Ff~----,
Date and Time for Purging/ .... ..;:..g ..:..../l~1'-!..1=-~..:....()....;.II ____ ....J
Well Purging Equip Used:OOpump o@ bailer
Sampling Event 1 QIl\o.f'fe(~ z: h I orof'o(1Y)
pH Buffer 7.0 7 .0
Specific Conductance lL....-q_11 ___ --'1 t-tMHOS/ cm
Depth to Water Before Purging/ .... _() __ -,
Conductance (avg)
and Sampling (if different)
Well Pump (if other than Bennet)
I '}w4--iT Prevo Well Sampled in Sampling Event L..-_______ ----'
pH Buffer 4.0 q .o
Well Depth(O.Olft): D
Casing Volume (V)
pH of Water (avg)
4" W ell:~..,.D.----_-;1 (. 653h)
3" Well:. 0 . (.367h)
7. \ I
Well Water Temp. (avg) 1.2.4.SLl Redox Potential (Eh) 1 '2.(;,7 Turbidity .... I _O __ ....J
Weather Condo Ext'l Amb. Temp. °C (prior sampl ing event)1 CX5D
Time 11 4~9 I Gal. Purged I I Time I I Gal. Purged I I
Conductance 1 2,<=\ I pHI (.11 I Conductance I I pHI I
Temp. DC I £[(\,54 I Temp. DC I I
Redox Potential Eh (mV) !2;{,7 I Redox Potential Eh (m V) I I
Turbidity (NTU) I 0 I Turbidity (NTU) I I
Time I I Gal. Purged I I Time I I Gal. Purged I I
Conductance I I pH I I Conductance I I pH I I
Temp. DC I I Temp. DC I I
Redox Potential Eh (m V) I I Redox Potential Eh (mV) I I
Turbidity (NTU) I I Turbidity (NTU) I I
White Mesa Mill
Field Data Worksheet for Groundwater 1 of 2
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged 1'---_0 ___ ---' gallon(s)
Pumping Rate Calculation
Flow Rate (Q), in gpm. Time to evacuate two casing volumes (2V)
S/60 = 1 0 T=2V/Q= 1 25 1
Number of casing volumes evacuated (if other than two) o
If well evacuated to dryness, number of gallons evacuated o
Name of Certified Analytical Laboratory if Other Than Energy Lab~,---,/J._V:_rt ______ ---,
Sample Taken Sample Vol (indicate Filtered Preservative Preservative
Type of Sample if other than as Added
y N specified below) y N Type y N
VOCs ~ 0 3x40 rnl 0 ~ HCL ~ 0
Nutrients Ttl 0 100 rnl 0 ~ H2SO4 ~ 0
Heavy Metals 0 0 250 rnl 0 0 HN03 0 0
All Other Non Radiologics 0 0 " 250 rnl 0 0 No Preserv. 0 0
Gross Alpha 0 0 1,000 rnl 0 0 HN03 0 0
Other (specify) ~ 0 Sample volume '0 ~ 0 ,ll
Ch\or-idc. If preservative is used, specify
Type and Quantity of
Preservati ve:
Comment
~ See instruction
Ac(';\Je.J.. )() }cJ:, ad 14;2.S, ~nl"l-C'r ~nJ. G-c:.rr:1'] fres~n+---tD L:01\cct-'"
TDD~ \ Sc:1--eX' ?()(o.rv1 eta.s tNll1 c.Dlle'-+~J. ..$GtMr1es 5-..+ 1'-130.
Le~ W cA} )q-SL\.
Dr
'---_______ ---'IDo not touch this cell (SheetName)
White Mesa Mill
Field Data Worksheet for Groundwater 2 of 2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
OENISONI)~~ l·----------------~-------ATTACHMENT 1
WHITE MESA URANIUM MILL
Attachment 1
~ See instruction
MINES FIELD DATA WORKSHEET FOR GROUND WATER _~_~_,.;f",
Description of Sampling Event: I '3" 1\ d\J.wter ell )0(0 f'oflY) =:lOll
Sampler Name
Location (well name):L-1 _I...:.....-W_Y....:...--...;:b_S ________ --I and initials: I :J3.hY) er 8(1)J,. J11 ITI';
Date and Time for Purgingj '6 /1 sJ ~D J I and Sampling (if different) ~ I /(,/20 IJ
Well Purging Equip Used: [1[]pump or@] bailer Well Pump (if other than Bennet) I &-rlAt\~tc0
Sampling Event I Q"'(A.(h:.(\~ Ghlo,..o+o('", Prevo Well Sampled in Sampling Event I TW1.\ -I L/
pH Buffer 7.0
Specific ConductanceI-I --,-9_~~..:....-__ --,I~MHOS/ cm
Depth to Water Before Purging] 6S. t.\ 0
Conductance (avg)
pH Buffer 4.0 1..\.0
Well Depth(O.Olft): \jY. DO
Casing Volume (V)
pH of Water (avg)
4" well:1 ~ 1. 7'.:> 1(·653h)
3" Well:I-. __ D _----I. (.367h)
Well Water Temp. (avg) I ,,;.(4 Redox Potential (Eh) I 194 Turbidity I :;.2?...
Weather Condo Ext'l Amb . Temp. O( (prior sampling event)1 :;....r:/'
Time I I Gal. Purged I I Time I I Gal. Purged I I
Conductance I I pH I I Conductance I I pH I I
Temp.oC I I Temp.oC I I
Redox Potential Eh (m V) I I Redox Potential Eh (mY) I I
Turbidity (NTU) I I Turbidity (NTU) I I
Time I I Gal. Purged I I Time I I Gal. Purged I I
Conductance I I pH I I Conductance I I pH I I
Temp.oC I I Temp.oC I I
Redox Potential Eh (mV) I I Redox Potential Eh (mY) I I
Turbidity (NTU) I I Turbidity (NTU) I I
White Mesa Mill
Field Data Worksheet-for Groundwater 1 'of 2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged ..... 1 _7 .......... 1'--__ .....
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = ...... 1 --->.1_1 __ ---'
gallon(s)
Time to evacuate two casing volumes (2V)
T=2V/Q= 1 5.77 1
Number of casing volumes evacuated (if other than two)
If well evacuated to dryness, number of gallons evacuated
Name of Certified Analytical Laboratory if Other Than Energy Labl ......... tI_I.:../l,'--______ --'
Sample Taken Sample Vol (indicate Filtered Preservative Preservative
Type of Sample if other than as Added
y N specified below) y N Type y N
VOCs 51 0 3x40 ml D C)I HCL ~ 0
Nutrients [J 0 100ml 0 51 H2SO4 III 0
Heavy Metals 0 0 250 ml 0 0 HN03 0 0
All Other Non Radiologics 0 0 ·250 ml 0 0 No Preserv. 0 0
Gross Alpha 0 0 1,000 ml 0 Q HN03 0 0
Other (specify) L5J 0 Sample volume 0 ~ 0 ~
c h \Of\Je If preservative is used, specify
Type and Quantity of
Preservative:
Comment
~ See instruction
'--________ ..... IDo not touch this cell (SheetName)
White Mesa Mill
J'ield Data Worksheet for Groundwater 2 of 2
Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
ATTACHMENT 1 ~~15~J:)~~
LMINES. FIELD DATA WORKSHEET FOR GROUND WATER
WHITE MESA URANIUM MILL
Attachment 1
~ See instruction
Description of Sampling Event: 13("JI Q",o.r:te(, c.hlorb+O(fI'I ;2..01\
Location (well name): ..... 1 _T_w_Y_-_7_D ________ ----'
Sampler Name
and initials: I~nfle(' H () 11, J~/,..}J
Date and Time for Purgin~1_~-'/:...../_b_I_~_Jl ____ _' and Sampling (if different) «/ J7/:::z..0 I }
Well Purging Equip Used: [!D pump or@] bailer Well Pump (if other than Bennet) 1 {f(\IIr'! {ffD~
Sampling Event 1 Qv...~('+e-d.~ L,}-, loro+o(rV) Prevo Well Sampled in Sampling Event I -r-v-lY--'
pH Buffer 7.0 1-1 _1_,.....;;(J'---_----' pH Buffer 4.0 ~.O
Specific Conductance ..... I.....j4_Q_Q ___ ---JI""MHOS/ cm Well Depth(O.Olft): \Li;2..00
Depth to Water Before Purgingj b~. k5 Casing Volume (V) 4" well:1 S \. b~ 1(·653h)
3" Well: C _ (.367h)
'-------'
Conductance (avg) 1 pH of Water (avg)
Well Water Temp. (avg) 11L\· f(;L Redox Potential (Eh) ..... 1 '-_b 7 __ _, Turbidity 11-'-1....:.-4 __ --,
Weather Condo Ext'l Amb. Temp. DC (prior sampling event)1 ;l-3°
Time 1 I Gal. Purged I I Time I I Gal. Purged I I
Conductance I I pH I I Conductance I I pH I I
Temp.oC I I Temp.oC I I
Redox Potential Eh (mV) I I Redox Potential Eh (mV) I I
Turbidity (NTU) I I Turbidity (NTU) I I
Time I I Gal. Purged I I Time I I Gal. Purged I I
Conductance I I pH I I Conductance I I pH I I
Temp.oC I I Temp.oC I I
Redox Potential Eh (m V) I I Redox Potential Eh (mV) I I
Turbidity (NTU) I I Turbidity (NTU) I I
White Mesa Mill
Field Data Worksheet for Groundwater 1 of 2
Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6
Groundwater Monitoring Quality Assurance Plan (QAP)
Volume of Water Purged 1 I '3~
Pumping Rate Calculation
Flow Rate (Q), in gpm.
S/60 = ..... 1 _1_1 __ .--I
gallon(s)
Time to evacuate two casing volumes (2V)
T=2V/Q= 1 Ci.31 1
Number of casing volumes evacuated (if other than two)
If well evacuated to dryness, number of gallons evacuated
Name of Certified Analytical Laboratory if Other Than Energy LablL..;tI:...:....;../fo~ ______ --1
Sample Taken Sample Vol (indicate Filtered Preservative Preservati ve
Type of Sample if other than as Added
y N specified below) y N Type y N
VOCs 1$J 0 3x40 ml 0 129 HCL fj 0
Nutrients IB 0 100 ml 0 ~ H2SO4 f9 0
Heavy Metals 0 0 250ml 0 0 HN03 0 0
All Other Non Radiologies 0 0 250ml 0 0 No Preserv. 0 0
Gross Alpha ·0 0 1,000 ml 0 0 HN03 0 0
Other (specify) [£] 0 Sample volume 0 ~ 0 ~
L-h lor; J( If preservati ve is used, specify
Type and Quantity of
Preservative:
Comment
~ See instruction
'--________ ..... IDo not touch this cell (SheetName)
White Mesa Mill
~ield Dafa Worksheet for Groundwater 2 of 2
TabC
Weekly and Monthly Depth to Water Data
Depth to Water
Ime WII e D th ep' c t ommen s
Jell g MW-4 7 1:zo Flow I.{.t bPA
Meter 51'l!1'd..<6 ,5S'
.,
Jo ~S MW-26 75, ,'/ Flow l -'-.2-tIN I'·
Meter 5~5 7J·S<i
ID/'1 TW4-19 '3.~(, Flow 1;)..1/ 1?(J,4 .
Meter //:; tt6Lf 75.21
/n 1/1) TW4-20 ~I1A A.~"J iii r Flow 10 6P;t1 o , 't~.2 I Meter ~(j 7 hSg.9 h
jD~5 TW4-4 b'J.5l Flow g .--'i 6 P fo1
Meter 431,165.1
Water: 66t.J (, ~ ~ o
...
Depth to Water
o Date i-I( -c70 It
Time Well DeDth Comments
ID ~7 MW-4 7 /) 7r. Flow 1./ G, f i't
Meter I}z!Jb1l5., h
10 ",0 MW~26 /7.0 1 Flow G.f MM
Meter b31 66 1 <i"_
/oSo TW4-19 6 1.45 Flow I/. l.j 6f' /1
Meter · /70' S 't~, JL.J
I/)'" n TW4-20 b3.1 ~ Flow q .. z. C9f>,A1
Meter .i?525 8t:J.,,~
o .. Ilo~D TW4-4 70 .,/3 Flow I O.~ ~Pft/
Meter '11 ~7 ~5 . b
Water: bO'tO"i O
.. --" I L~)
C) Depth to Water
Date 71ft ! ~o \I Name ~onif Me I I.'.
Ime WII e D th eD' c t ommen s
'Oc..:~, MW-4 "1J.05 Flow ~~ G-P.at\
Meter .s~15 7~.~O
0';1$ MW-26 '11.'" Flow ~.o ""PM
Meter G, ~ ~"b.E'i
l'i ~ TW4-1 9 13.&.1.5 Flow I '1.~ 6-PM.
Meter /7 ( &5 '1 8 .~t.f
o "X1. TW4-20 '8.bl Flow 10.\of &opM
Q Meter :tSKOX1.~1..(
oC:,~~ TW4-4 ~f5Ji3 Flow J l.~ (,.p~
Meter ~%:l.q ,.' .
Water: ~l bOlg
~ ,
it; ~ ~."II
"""\'11' -:\ '-C> Co ('.0
o Depth to Water
Date 7/xsl:Jl>11
T" Ime WII e D th eD' c t ommen s
0"11 MW-4 71.:lD Flow Lt. L{ ("PPl
Meter 5381S'1.b8
b 'l ~ MW-26 43·1 ~ Flow b.c:t c,.P M
Meter '342.'LO I
06Lf5 TW4-19 Sg.30 Flow 1729,"1'14.'10
Meter 1'1..3 6_P A
0'"011\ TW4-20 73.ctS Flow IO.!t c,.PM
o Meter 2~ 31 <II. 4"1
O~\ TW4-4 b8.tt5 Flow 10 .f< (rf>~
Meter ~S'1115 .5
Water: f,)'7q~o
o
C)
o
o
Date ct /1 120 t (
Time Well
}O '5 A MW-4
IO .1h MW-26
121~ TW4-19
iD 2 ?--TW4-20
10 ~7 TW4-4
Water:
Depth to Water
DeDth Comments
70~ 7l Flow L.-\ /, (., (J #\
Meter .s ~g 6'1 . Y ~
7/,15 Flow h,;S 6P~
Meter 7gf)()3o!;, 7
7 ·7.15 Flow l~.q ~PM
Meter \ 7 L{ \ I~ \ . q ::2
\ \
h s .06 Flow 10 Sa £P~
Meter .2696/ Z q'-l .
6 1.g7 Flow 13 '0. (;) !';Pj1J\
Mete r L.J6 ;2.3 15J f ) S
t§3Lf;)S 7
Depth to Water
Date SJ tJ2-Dl( ~ , Name be. era'l\ -e I vVler
Time Well DeDth Comments
ILJDl MW-4 7q no Flow Li .3 cPA
Meter 5 512LiY AS
141\ MW-26 7 1.IIJ Flow 6.6
Meter g'LJ26Q 71
I L-{ Jt; TW4-19 61 v 2C1 Flow ~_/Yt>:2-b~
Meter ~ ..:">. -T_..I~,.-r).. ~ -:A
J L1JA TW4-20 h i ~5 Flow 6L&'C; ID~3 ~f)/l
C) -Meter 'J-7 ~ ~5Y _ 3'-i
IYOY TW4-4 7o~ 12--Flow q,< GP~
Meter Y70~7 7 'l
Water: A ~q3>3
o
~ o
()
Date 55 //5/)jj 1/ I J ~
Time Well
IS!/ MW-4
IS-a L/ MW-2 6
I,~JO TW4-19
/iJ.5:2 TW4-20
() g:~() ~ Vitia II
)5.20 TW4-4
Water:
Depth to Water
Name XI ,WfI1E(i,
DeDth omments
b 7, Os Flow 'l '7 I,PfV\
Meter 6383h2,. r
tf(, %/ Flow 6, g &rJfVl
Meter '61'~ 7¥'. ~
51. 1 .. 5 Flow I If .. ;2 (""11111
Meter I?i 'ihh;l. .. It I
I
ilarl4 'l.t? fJ, IkrINL Flow!J,uA-hlc .)f tt J a-~ ff'j It
f5! ()# / 2:7. c,~ \ Meter 2 f; /()t, -:f-" S-
19-/J~/?~/1 ) Lff/6lfl!. ~ ,? ) It /2(}t/
'l}' c<;l Flow jj, ij?;M
Meter tfl1rfJ6, 'I
;; L/5&51
I
()
Date r/2Ut( ,
Depth to Water
... ~ame . 6vt';tAy .&.~(t.-
Time Well Depth Comments
JJ~2 MW-4 7t~1 Flow 3.1 6 r~
Meter 5,~o.s6.hJ
r 2CJ~ MW-2 6 b Cf. -,s, Flow 6. > 6 P.,v\
Meter QY8'3tJ'"-:S~
1')15 TW4-19 ~J1..qD Flow 14.0 C;P".v\
Meter t::z2Sh 13 . 7'
ULtc. TW4-20 '=J 2.4 0 Flow 'to q GP/"\
o Meter Ui54 £/. qy
\l ~-l TW4-4 ,(q ~l Flow iO. l ~f".v\ -Meter l.f BY." I I tJ
Water: 6 l1 'l IYO
()
o
o
o
Date g/).q / tl
Time Well
lL.l/')( MW-4
\357 MW-26
1 3.2~ TW4-19
1.353 TW4-20
111 C> L.\ TW4-4
Water:
Dep th to Water
Name ~r:V\-e tt4<\e..v-
Depth Comments
7 £.52-Flow y .:> 6 P~
Meter S 7 J 7 .... 2J ~ :st
7 1 ~ /~ Flow b ,g" GP,N<.
Meter \0£23 ]15 l..--12
~·2. 80 Flow '~ ... I AP'p\
Meter 17874()L{ q;Z
6 (.60 Flow 10.5 hPA
Meter :2 92 1~'. 3S
8't..L ~£1 Flow t . h i9PJVl-
Meter !--1q:z ~q 5-:2S
66J~;20 .
o Depth to Water
Date al i 1J.01 f Name :Unocr H.ll,;J~, fn",.n ft.',.",
T-W II Ime e D th ep' C t ommen s
osS! MW-4 7 r b Flow 2.5 ~PM
Meter ~15~&.fi
010~ MW-26 "K.5' Flow !..~ G.PI"1
Meter f 0., O~i . ~
0·130 TW4-19 61. 2?-Flow Il-/. ~ 6P~
Meter I X'D 270D
0111 TW4-20 g 10, Flow 10 .0 {rPM o --Meter :t~<f!2a7_0'
0&58 TW4-4 78 .!>'1 Flow g .0 ("'PM
Meter _.;o~.7
.,
Water: 6b q_L1 ~O o
o Depth to Water
Date q -! ?. -2-0 II Name 6 4 ("'(':.A-ftA-lMe,C
TO Ime WII e o th ep' c t ommen s
I~I MW-4 71 Lq Flow 4 .5 bPM
Meter .5 ~J?Y 1. 3 7
IDSS MW-26 72.4 0 Flow 7. 6 6 1' ..f/\
Meter J1 0 !i L9~~
10'25 TW4-19 1-10.S '1 Flow 1 L1 5 G f.;V\
Meter J g'loO IO.SF
II7L;n TW4-20 AI.gD Flow 9 . 6 (-,/J ~
o Meter 3 D 3 .2 ;;2.Q.Sq
I2.D4 TW4-4 7 1,5 0 Flow II. () 6 PA
Meter ~o 73 qc,. '1 1
Water: A 7~LJ 1O o
Date .9... , q" r f
Depth to Water
Name {)o..,,; "'-fl l v0-v
Ime WII e D th eD! c t ommen s
1.2. L5 MW-4 71 .3 0 Flow ~ b.~ &'PM
Meter 5~ IS 30. 0 4
t2.o ~ MW-26 b't .go Flow (,3 rrPM
Meter 11 b3 ;tb.;l..R
()qLfO TW4-19 5cr.;.::~ Flow \4,6 AP8
Meter IK2 1 LJ 3 5_ \0
v.:tc> 1..\ TW4-20 1S,~~ Flow /0 .' C-PI'1
o Mete r 10 Z1;2. '-f .].h
\.lJil JaoIO', TW4-4 7 5 ·15 Flow 10·7 &P M
\2~o Meter .51Y Q gg .7
Water: £8136'7 o
C) Depth to Water
Date _ q. ~ 6· ! [ N /' /} l -~ ame Up:cr-j.c.. ~ vv\.eJ ') r A. .... ~ }-k.u :.
Time Well nl--.LI. .leal" Comments
120Ll MW-4 ,I r3 Flow _3 t') GP~
Meter .5 q .$;'2 20.<'h
J 202 MW-26 J:7 Cf'-l FloW Ah ~-V~
Meter 1 ~1 7 8'tt L-\ \
192c.. TW4-19 60.IS Flow ILLS
Meter ~1 ~3.3f?l? q
l ~O(') TW4-20 7g.~c; Flow to.2 liP/i1
Meter "3, ILlI!, S J t'J S?
.-I ZIO TW4-4 7c>. L{""3: Flow 10 .0
Meter 5 2':J...t; / h. tt I
/
Water: h ~3-Yil
J; G~ d. +I()~ ~ Mt..+e..r 01"-t\..Jt..l~ICl.F.oI\.~\ i""e..,.).; Wtl.,.S
-J'l\e.te..r \,Jfi..} c..~~ be.l.CW 5<:'" i +-LJA...,S
tke.-\I\.c$e... ()tf\. ".~~-1l ~ OqOO.
19
,64
o
o
0
~ 1(
lb . J
Date ~-r, -s; ,;2(///
Time Well
f\l~ ~ MW-4
()17q MW-26
~/~/n TW4-19
(\ '1 2 () TW4-20
11J11./£., TW4-4
W ater:
3tO?l-/1
2&' 'I ~fvO
Dep th to Wate r
Name 1?r dlr ,&
DeDth Comments
70. ":;2 Flow 5"~ t &/Jff\.
Meter h () 1./ "7rll# ;],
60~ & (., Flow 7,·L t,lfYl
Meter 12'11'11. ~ 1/-
to. 17 Flow It!. if L-1'lh1 / Jtt~1 L~ t4J
('
Meter "72S 7 ,[c() \ () ~ J ('II.(n l lIN
Ig~55011,,'1'¥ ~ ~ C/.7f Flow LO. 2 0~rVl
Meter :~/'1qll1r1 J.-
~ g~ 15' Flow 1 II ltPtv1.
Meter 6' :2ilL1~1
/'~xt g9
CI, ()
t.Z--0
C3-{;
7 tI q'lll, 'f5 .st';~$
TabD
Kriged Current Quarter Groundwater Contour Map, Details Map, and Depth to Water Summary
Static
Quarterly Depth to Water
NAME: Tanner Holliday, Garrin Palmer
DATE: 9/20/2011
TIME WELL level TIME WELL
Static
Level TIME WELL
829 MW-l 64.64 1213 MW-4 71.19 844 PIEZ-l
1246 MW-2 109.74 1209 TW4-1 64.45 840 PIEZ-2
1256 MW-3 83.33 1215 TW4-2 67.26 1156 PIEZ-3
1257 MW-3A 85.45 1204 TW4-3 49.53 1230 PIEZ-4
1322 MW-5 106.15 1220 TW4-4 73.01 1234 PIEZ-5
1326 MW-11 88.65 1200 TW4-5 56.08
1319 MW-12 108.40 1223 TW4-6 70.41 1210 TWN-l
1330 MW-14 103.72 1211 TW4-7 67.61 1400 TWN-2
1333 MW-15 106.35 1207 TW4-8 66.77 1214 TWN-3
1252 MW-17 75.51 1202 TW4-9 54.07 1152 TWN-4
836 MW-18 70.25 1158 TW4-10 56.00 830 TWN-5
842 MW-19 51.84 1217 TW4-11 57.59 824 TWN-6
951 MW-20 87.29 1240 TW4-12 39.91 832 TWN-7
944 MW-22 67.20 1242 TW4-13 46.31 822 TWN-8
1251 MW-23 114.26 1245 TW4-14 87.32 847 TWN-9
1226 MW-24 114.45 1156 TW4-15 73.99 818 TWN-l0
1340 MW-25 74.56 1326 TW4-16 62.50 812 TWN-11
1156 MW-26 73.99 1328 TW4-17 76.05 810 TWN-12
1221 MW-27 51.11 1207 TW4-18 56.57 848 TWN-13
1235 MW-28 76.88 1405 TW4-19 63.55 851 TWN-14
1242 MW-29 102.22 1154 TW4-20 81.03 816 TWN-15
1239 MW-30 76.35 1204 TW4-21 54.55 856 TWN-16
1333 MW-31 68.75 1152 TW4-22 53.94 855 TWN-17
1328 MW-32 76.05 1224 TW4-23 65.47 1148 TWN-18
1302 MW-33 dry 1150 TW4-24 55.64 807 TWN-19
1304 MW-34 107.80 1202 TW4-25 46.83
1255 MW-35 112.20 1227 TW4-26 64.09
1258 MW-36 110.30
1308 MW-37 109.24
Comments:
Static
Level
61.74
17.79
40.96
48.42
43.21
50.77
16.90
32.10
39.05
69.67
74.59
88.80
61.66
63.41
81.06
69.57
31.80
46.29
62.80
92.12
47.96
34.15
57.80
52.19
TIME
737
740
815
750
747
744
800
803
806
733
755
730
718
715
707
710
725
WELL Static Level
DR-l ABANDON
DR-2 ABANDON
DR-3 MW-36
DR-4 MW-37
DR-5 83.23
DR-6 94.41
DR-7 92.15
DR-8 51.11
DR-9 86.63
DR-l0 78.00
DR-11 98.34
DR-12 87.19
DR-13 70.12
DR-14 76.49
DR-15 93.01
DR-16 ABANDON
DR-17 64.85
DR-18 ABANDON
DR-19 63.35
DR-20 55.91
DR-21 101.65
DR-22 DRY
DR-23 70.78
DR-24 43.88
DR-25 ABANDON
PROPERTY
BOUNDARY
\\
\\
\\
MW·01 .5583
MW-18 .5587
~5586
TWN-10
TWN-11 TWN.12/ T ~561~ ~56~6/
'6'07,(;)
~558 TWN-14
~5584 TWN-9
PIEZ-1i----.....L-l-
~5594
f' L "-/ "-I \
( PI~ 11 J ~
o
MW-22
.5450
TW4-1
0 5554
PIEZ-l
. " 5594
·TWN-4
~ 5603
MW-34
-¢-5492
MW-36
~5493
MW·02 .5503
~5~ N-4
/
./
MW.B5 -¢-r 94
MW.36 CELL NO. 48 $6: $93
N
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
perched monitoring well installed
August/September, 2010
showing elevation in feet amsl
perched monitoring well installed April,
2011 showing elevation in feet amsl
MW-03 .5471
3000
;? ;?
j¥.:::::::=====
___ -----552
\
~ ij/ -=--=. -::::. -=--=--=--=--=--=--=-- --=--=--=--=--=-
"-~-,:::::.-~ $<16'0
HYDRO
GEO
CHEM, INC.
MW.22 ~ II
.5450 "" // //
//
//
//
//
//
//
//
//
NOTE: MW-4, MW-26, TW4-4, TW4-19 and TW4-20 are pumping wells
KRIGED 3rd QUARTER, 2011 WATER LEVELS
WHITE MESA SITE
APPROVED DATE REFERENCE FIGURE
SJS H:/718000/nov11 /wI0911.srf D-l
. ,',
N
MW-02 8 5503
PROPERTY
BOUNDARY
MW-03 8 5471
MW-20 8 5453
\\
\\
\\
MW-01 8 5583
MW-18
8 5587
TWN-11 TWN-12/ T ~561~ ~56T6/
~o1-ru
~5586
TWN-10
~5584 TWN-9
PIEZ-1~---_.l.-!­
.. 5594
1 ij" -=--=--:::::.. -=--=--=--=--=--=--=-. -=~.-=-4 L:-v"Sf6'O
~! ___ ~~~~§iIii ___ !
o 3000
MW-22
.5450
TW4-1
0 5554
PIEZ-1
'" 5594
TwN-4
~5603
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
perched monitoring well installed
August/September, 2010
showing elevation in feet amsl
""" " " ,'," estimated capture zone
" " ,'," boundary stream tubes
I I I , resulting from pumping
HYDRO
GEO
CHEM, INC.
MW-22 "" II
85450 '" // //
//
//
//
//
//
//
//
//
NOTE: MW-4, MW-26, TW4-4, TW4-19 and TW4-20 are pumping wells
KRIGED 3rd QUARTER, 2011 WATER LEVELS
AND ESTIMATED CAPTURE ZONES
WHITE MESA SITE
APPROVED DATE REFERENCE FIGURE
(
MW-34
-<r 5492
MW-36
~5493 perched monitoring well installed April,
2011 showing elevation in feet amsl SJS H:/718000/nov11/wI0911cz2.srf 0-2
7
EXPLANATION
" ,--,----" " " ", estimated capture zone
" " ,',' boundary stream tubes
I I I I resulting from pumping
<> TWN-1 temporary perched nitrate monitoring
. 5597 well showing elevation in feet amsl
o TW4-1 temporary perched monitoring well
5554 showing elevation in feet amsl
• MW-32 perched monitoring well showing
5549 elevation in feet amsl
N
t T
! !
o 150 300
SCALE IN FEET
NOTE: MW-4, MW-26, TW4-4, TW4-19, and TW4-20 are pumping wells
HYDRO
GEO
CHEM, INC .
SJS
KRIGED 3rd QUARTER, 2011 WATER LEVELS
AND ESTIMATED CAPTURE ZONES
WHITE MESA SITE
(detail map)
REFERENCE
H:/718000/nov11/wI0911 cz.srf
FIGURE
0-3
TabE
Kriged Previous Quarter Groundwater Contour Map
PROPERTY
BOUNDARY
\\
\\
\\
II
II
II
II
II
II
II
'/
MW-01 eND
MW-18
eND
~~
<>NS TWN-15
<>NS TWN-10
<>NS
TWN-11
<>NS TWN-14
<>NS
TWN-9 <>NS TWN-6 PIEZ-1 <INS
<>NS MW-19 TWN-8 eND
<>NS
TWN-12
f' <>NS
II <>NS TWN-18
TWN-7
II <>NS
/L « TWN-3 PIEZ-2 ( ~ <INS
o
MW-4
.1700
TW4-1
0 1200
PIEZ-1
Q NS
.TWN-4
. ~ NS
MW-34
-9-ND
MW-36
~ NS
N
SCALE IN FEET
EXPLANATION
perched monitoring well showing
concentration in uG/1
temporary perched monitoring well
showing concentration in uG/1
MW-2
MW-02 eND
MW-03 e ND
MW-20 eND
3000
perched piezometer (not sampled)
temporary perched nitrate monitoring well
(not sampled)
perched monitoring well installed
August/September, 2010
showing concentration in uG/1
perched monitoring well installed April,
2011 (not sampled)
MWoffo .w
ONS r-~ cf
M1tt2~TE
<>N PIEZ-3
CELL NO.1 TWN-<INS
0
CELL NO.2
MW-17
e ND
33
ND 0
00 m g-14
4-6
o TW4-23 TW~326
PIEZ-4 <INS
#
PIEZ-5 <INS
T37S
T38S
II ~~ ~~=====4============l
"'--===-
HYDRO
GEO
CHEM, INC.
MW-22 eNS
II
//
//
//
//
//
//
//
//
// ~
// ~
NOTE: MW-4, MW-26, TW4-4, TW4-19 and TW4-20 are pumping wells
KRIGED 2nd QUARTER, 2011 CHLOROFORM (uG/L)
WHITE MESA SITE
APPROVED DATE REFERENCE FIGURE
SJS H:/718000/aug11 /chI0611.srf E-1
. ,',
TabF
Hydrographs of Groundwater Elevations Over Time for Chloroform Monitoring Wells
Depth Below Measuring Point (ft.)
0
09/25179
02/06/81
06/21182
11103/83
03/17/85
07/30/86
12/12/87
04/25/89 ~
09/07/90 ~
~
01120192 ~ f""I" ~ 06103/93 ~
~
10/16/94 ~ ~ ;.
02128/96 0 < ~ 07/12197 ~
~ ....
11124/98 = ~ -..
04/07/00 ~
r:'
08/20101 -= ~
01102103 '-"
05/16104
09/28/05
02/10107
06/24/08
11106109
03/21111
08/02/12
12/15113
Depth Below Measuring Point (ft.)
VI VI
VI 0
11108/99
04/06/00
09/03/00
01131/01
06/30/01
11127/01
04/26/02
09/23/02
02/20/03 t-3
07/20/03 ~
"'" 12/17/03 I
~
05/15/04 ~
'""" 10/12/04 ~ '"'l
03/11105 ~ ~ ~ 08/08/05 '""" =-
01105/06 0 -<
06/04/06 ~ '"'l
t-3 11101106 .... !3
03/31107 ~ --
08/28/07 ~
r::J" -01125/08 !3 ~
06/23/08 '-"
11120/08
04/19/09
09/16/09
02/13/10
07/13/10
12/10/10
05/09/11
10/06/11
03/04/12
08/01112
Depth Below Measuring Point (ft.)
VI
0
11108/99
04/06/00
09/03/00
01131101
06/30101
11127/01
04/26/02
09/23102
02/20103 l-3
07/20103 ~ .a;.
12117/03 I N
05/15/04 ~ f""I" 10112/04 ('D
"1
03/11105 ~
('D
"0 08/08/05 :;.
01105106 0 ~
06/04/06
('D
"1
l-3 11101106 .....
9
03/31107 ('D --08/28/07 ?
0--01125108 9 "0
06/23/08 '-'
11120108
04119/09
09/16/09
02/13110
07/13/10
12/10/10
05/09/11
10106111
03/04112
08/01112
Depth Below Measuring Point (ft.)
.j::..
0
11/29/99
04/27100
09124/00
02/21101
07/21101
12118/01
05117/02
10114102
03113/03 ~
08/10103 ~ ~ 01107104 I ~
06105/04 ~ .....
11102104 ~ "1
04/01105 ~ ~ ~ 08/29/05 ~
01126106 0 -<
06125/06 ~ "1
~
11/22/06 .... a
04/21107 ~ --
09118/07 ?
r::::r -02115/08 a ~
07114/08 '-..-'
12111108
05110109
10107/09
03/06/10
08/03110
12/31110
05/30111
10127111
03125112
08/22112
Depth Below Measuring Point (ft.)
Vl 0
05/25/00
09102/00
12111100
03/21101
06/29101
10107101
01115/02
04/25/02
08/03102
11111102
02119/03
05/30103
09107/03 t-3
12116103 ~ ~
03/25/04 I ~
07/03/04 ~ 10111104 f""Io.
01119105 t'D ~
04129105 ~
08/07/05 t'D "'Cl f""Io. 11115105 =-02/23/06 0
06/03/06 -< t'D
09111106 ~
t-3
12/20106 .....
9 03/30107 t'D
07/08/07 ,-.,
~ 10116/07 r::r
01124/08 -9 05/03/08 "'Cl '-" 08111108
11119108
02/27/09
06/07/09
09115109
12/24/09
04/03110
07112110
10/20110
01128111
05/08/11
08116111
11124/11
03/03112
06/11112
Depth Below Measuring Point (ft.)
U\ 0
01102/00
04111100
07/20100
10/28/00
02/05/01
05116101
08/24/01
12/02/01
03112102
06/20102
09/28/02
01106103
04116/03 ~
07/25/03 ~ 11102103 ~ I
02110104 Ul
05/20104 ~ 08/28/04 """ ~
12/06/04 ~
03/16/05 ~ ~
06/24/05 "0 """ 10102/05 =-
01110/06 0 <
04120106 ~ ~
07/29106 ~ ....
11/06/06 :3
02114107 ~
~
05/25/07 ~
09/02/07 r: -12/11107 :3
03120108 "0 "-'
06/28/08
10106/08
01114/09
04124/09
08/02/09
11110/09
02118110
05/29/10
09/06110
12/15/10
03/25111
07/03/11
10111111
01119112
04/28112
., 00
VI
,
~.
4
~
00 o
Depth Below Measuring Point (ft.)
t
\
~
~
-J o
l..----
~
0\ o
-----
VI VI
~
VI o
-
OS/25/00
09/02/00
12111100
03/21101
06/29/01
10107101
01115/02
04/25/02
08/03/02
11111102
02/19/03
05/30103
09/07/03
12116103
03/25/04
07/03/04
10111104
01119/05
04/29/05
08/07/05
11115105
02/23/06
06/03/06
09111106
12/20106
03/30107
07/08/07
10/16/07
01124108
05/03/08
08111108
11119/08
02/27/09
06/07/09
09115109
12/24/09
04/03/10
07112110
10/20110
01/28111
05/08/11
08116111
11124/11
03/03112
06/11112
~ ~ ,&;;;..
I
0"1
~
""'" ~ '"'l
~ ~ "0 ""'" =-0 -< ~ '"'l
~ 1-/.
S ~ --?
0--S "0 '-'
Depth Below Measuring Point (ft.)
VI 0
11/29199
03/08/00
06116/00
09/24/00
01/02/01
04/12/01
07/21101
10129101
02/06/02
05117102
08/25102
12/03/02
03113103 ~ 06/21103 ~ 09/29103 .&;;;..
01107/04 I ......:J
04116/04 ~ 07/25104 ~
11102104 ('D
"'1
02110105 ~
05/21/05 ('D
"0
08/29105 ~ =-12/07/05 0
03117106 ~ ('D
06/25106 "'1
10/03106 ~ ....
01111107 9 ('D
04/21107 -..
07/30107 ?
11107107 r::J" -02115108 9 "0 OS/25108 '-"
09102/08
12/11108
03/21109
06/29109
10107109
01115110
04/25/10
08/03110
11111110
02/19/11
05/30111
09107111
12/16/11
03/25/12
07/03112
Depth Below Measuring Point (ft.)
0\ 0
11129/99
03/08/00
06116/00
09/24/00
01102101
04112/01
07/21101
10129/01
02/06/02
05117102
08/25/02
12/03/02
03113103 1-3 06/21103 ~ 09129/03 ,&;;..
01107/04 I
00
04116/04 ~ 07125/04 .....
11102/04 ~ "1
02110/05 ~
05121105 ~ ~
08/29/05 ;.
12/07/05 0
03117106 < ~
06/25/06 "1
10/03/06 1-3 ...
01111107 9 ~
04121107 -..
07/30/07 ?
11107107 ~ -02115/08 9 ~ 05/25/08 '-'
09/02/08
12111108
03121/09
06/29/09
10/07/09
01115110
04/25110
08/03/10
11111110
02119111
05/30111
09/07111
12116111
03/25112
07/03112
Depth Below Measuring Point (ft.)
-..l 0\ 0\ 0\ 0\ 0\ Vl Vl Vl Vl Vl
0 00 0\ +>-N 0 00 0\ +>-N 0
12120/99
03129/00
07/07/00
10/15/00
01123101
05/03/01
08/11101
11119101
02127/02
06/07/02
09115102
12124/02
04/03/03 ~ 07112103 ~ 10/20103 ~
01128104 I \0
05/07/04 ~ 08115104 f""I"
11123/04 ~ "1
03/03/05 ~
06111105 ~ "0
09119/05 f""I" =-12128/05 0
04/07/06 ~ ~
07116106 "1
10124/06 ~ ....
02/01107 9 ~
05112/07 --08/20107 ?
11128/07 0" -03/07/08 9 "0 06115108 '-"
09/23/08
01101109
04111109
07/20109
10/28/09
02/05110
05116110
08/24110
12/02110
03112111
06120111
09/28111
01106112
04115112
07124112
Depth Below Measuring Point (ft.)
VI VI VI VI VI VI VI
\0 00 -..] 0\ VI .j::>. (,;)
01103/02
04113/02
07/22/02
10/30102
02/07/03
05118103
08/26/03
12/04/03
03113104
06/21104
09/29/04 ~
01107/05 ~ .I:;. 04117/05 I
~
07/26/05 ~
11103/05 ~ f"'Ioo
02/11106 ('I>
"'1
05/22/06 0 ('I>
08/30106 "t:!
12/08/06 e-
O 03/18/07 -< ('I>
06/26/07 "'1
10104/07 ~ .... = 01112108 ('I> -..
04/21108 ?
07/30108 0--11107/08 = "t:!
02/15/09 '-'
05/26/09
09/03/09
12/12/09
03/22/10
06/30110
10108/10
01116111
04/26/11
08/04/11
11112111
02/20/12
05/30/12
Depth Below Measuring Point (ft.)
00 -J -J 0\ 0\ Vl Vl
0 Vl 0 Vl 0 Vl 0
01103/02
04/13/02
07/22/02
10/30/02
02/07/03
05/18/03
08/26/03
12/04/03
03/13/04
06/21104
09/29/04 ~
01107/05 ~ .&;;..
04/17/05 I ~
07/26/05 ~
~ 11103/05
f""I"
02/11106 t'e ""t
OS/22/06 ~ t'e
08/30/06 "0
12/08/06 ;.
0 03/18/07 ~ t'e
06/26/07 ""t
~ 10104/07 ....
9
01112108 t'e --04/21108 ?
07/30/08 r:r -11107/08 9 "0
02/15/09 '"-'
OS/26/09
09/03/09
12/12109
03/22/10
06/30/10
10/08/10
01/16/11
04/26/11
08/04/11
11112/11
02/20/12
--05/30/12
Depth Below Measuring Point (ft.)
VJ .j::.
08/23/02
12/01/02
03111/03
06/19103
09/27/03
01/05104
04/14/04
07/23/04
10131/04
02/08/05 1-3
05119105 ~
08127/05 .a;.
I I--'
12/05/05 N
~ 03115106 f""Io.
06/23/06 ~ "'1
10101/06 0 ~
01/09107 "'0 f""Io. =-04119107 0 -< 07128/07 ~ "'1
11/05/07 1-3 ...
02113108 :3 ~
05/23/08 ,-...
~
08/31/08 0--12/09108 :3 "'0
03/19109 '-'
06/27/09
10105/09
01/13110
04/23110
08/01110
11/09110
02117111
05/28111
09105111
12114111
l.....-__ -'--_--l.. __ --'L..-_..J __ --I-.__ _ __ -l.-_--l.._---I_. 03/23112
Depth Below Measuring Point (ft.)
.......
0 \0 00 --.l 0\ VI .j::.
0 0 0 0 0 0 0
08/23/02
12/01/02
03/11/03
06/19/03
09/27/03
01/0S/04
04/14/04
07/23/04
10/31/04
02/08/0S ~
OS/19/0S ~ "'" 08/27/0S I ~ (.H
12/0S/0S ~ 03/1S/06 ~ ('tI
06/23/06 "'1
10/01/06 ~ ('tI
"0
01/09/07 ~ =-
04/19/07 0 -<
07/28/07 ('tI
"'1
11/0S/07 ~ ....
02/13/08 9 ('tI --OS/23/08 ?
08/31/08 "a" -12/09/08 9 "0 '-' 03/19/09
06/27/09
10/0S/09
01/13/10
04/23/10
08/01/10
11/09/10
02/1 7/11
OS/28/11
09/0S/11
12/14/11
03/23/12
Depth Below Measuring Point (ft.)
00 0\
08/23/02
12/01102
03/11103
06/19/03
09127/03
01105/04
04/14/04
07/23/04
10131104
02/08/05 1-3
05/19105 ~
08/27/05 ~
I I--"
12/05/05 ~
~ 03115106 ~
06/23/06 ~ "1
10101/06 ~ ~
01109107 "'0 ~ =-04119/07 0 < 07/28/07 ~ "1
11105107 1-3 ....
02113/08 a ~
05/23/08 --?
08/31108 r::::r -12/09/08 a "'0
03119109 '-'
06/27/09
10105/09
01/13110
04/23/10
08/01110
11109110
02/17111
05/28/11
09/05111
12114111
03/23112
.......
8 1.0 o
Depth Below Measuring Point (ft.)
00 o 0\ o VI 0
.j::..
0
08/23/02
12/01102
03111103
06119/03
09127/03
01/05/04
04114104
07/23/04
10131104
02/08/05 ~
05119105 ~ I
08/27/05 N 0'\
12/05/05 ~ 03115/06 """" ~
06123/06 "1
~
10101106 ~ "C
"""" 01109/07 =-
04/19/07 0 -< ~ 07128107 "1
11105/07 ~ ... 9
02113/08 ~ -..
05123/08 ~
08/31/08 0'" -
12/09/08 9
"C '-'
03119109
06/27/09
10105/09
01113110
04123110
08/01/10
11109110
02117/11
05128111
09/05111
12114111
-03123112
Depth Below Measuring Point (ft.)
00 -..l -..l 0\ 0\ VI VI
0 VI 0 VI 0 VI 0
L-,---_ .. 08/23/02 I 12/01102
03111/03
06/19103
09/27/03
01l0S/04
04114/04
07/23/04
10/31104
02/08/0S ~
OSI1910S ~
08/27/oS ,&;:..
I
~
12/0S/OS 0\
~ 0311S/06
'""" 06/23/06 ~ '"1
10101106 ~ ~
01109107 "Q
'""" =-04/19107 0 < 07/28/07 ~ '"1
11/0S/07 ~ ~.
02113/08 9 ~
05/23/08 ---?
08/31108 0" -12/09108 9 "Q
03119/09 '-'
06/27/09
1010S/09
01113110
04123110
08/01110
11/09110
02117111
OS/28/11
09105111
12114111
-------_. 03/23/12
Depth Below Measuring Point (ft.)
-..) -..)
0\ V\
08/23/02
12/01/02
03/11/03
06/19/03
09/27/03
01/05/04
04/14/04
07/23/04
10131104
02/08/05 ~ 05/19105 ~ 08/27/05 I ~
12/05/05 N
~ 03/15/06
~
06/23/06 ~ "1
10101/06 ~ ~
01/09107 "0 ~ =-04/19107 0 -< 07/28/07 ~
"1
11/05/07 ~ ....
02/13/08 = ~
05/23/08 --?
08/31/08 0--12/09108 = "0
03/19109 '--'
06127/09
10105/09
01/13110
04/23/10
08/01/10
11109/10
02/17/11
OS/28/11
09105/11
12/14/11
03/23/12
Depth Below Measuring Point (ft.)
0
08/23/02
12/01102
03/11/03
06/19103
09/27/03
01105104
04/14/04
07123104
10/31104
02/08/05 1-3
05/19105 ~
08/27/05 .&;.
I ~
12/05/05 QO
~ 03/15106
""'" 06/23/06 ('tI
--S
10101106 ~ ('tI
01109/07 ~
""'" =-04/19/07 0 < 07128/07 ('tI
--S
11105/07 1-3 ....
02113/08 9 ('tI
05/23/08 ~ ?
08/31108 r:;" -12/09/08 9 ~
03/19109 '-"
06/27/09
10105/09
01/13/10
04/23110
08/01110
11109110
02/17111
05/28/11
09/05/11
12/14/11
03/23/12
Depth Below Measuring Point (ft.)
-J::.. 0
08/23/02
12/01/02
03111103
06119/03
09/27/03
01105104
04114/04
07/23/04
10/31104
02/08/05 1-3
05/19/05 ~ ~
08/27/05 I ~ 'I.e
12/05/05 ~ 03115106 f""I" ('t
06/23/06 ""1
10101106 ~ ('t
"0
01109/07 f""I" =-
04/19/07 0 -<
07/28/07 ('t
""1
11105107 1-3 ...
02113/08 a ('t -.. 05/23/08 ??
08/31108 0-
12/09/08 !3 "0 '-' 03/19/09
06/27109
10105/09
01113/10
04/23110
08/01110
1110911 0
02117111
OS/28/11
09/05/11
12/14111
03/23112
Depth Below Measuring Point (ft.)
......
0 1.0 00 -....l 0-U) ~
0 0 0 0 0 0 0
07/29/05
09/17/05
11106105
12/26/05
02/14/06
04/05/06
05/25/06
07/14106
09/02/06
10/22/06
12/11106
01130107
03121107 ~ 05/10107 ~ 06/29/07 ~
08/18107 I N
10/07/07 ~
11126/07 ~ 01115/08 @"+
03/05/08 ('D
"1
04/24/08 0
06/13108 ('D
~
08/02/08 @"+ =-09/21108 0
11110108 -< ('D
12/30108 "1
02118109 ~ ...
04/09/09 9
05/29/09 ('D ---07118109 ?
09/06/09 0--10/26/09 9
12115109 ~ '-" 02/03/10
03/25110
05114110
07/03/10
08/22/10
10/11/10
11130110
01119/11
03/10/11
04/29111
06118111
08/07111
09/26111
11/15111
01104112
02/23112
Depth Below Measuring Point (ft.)
VI tv
07/29/05
09/17/05
11/06105
12/26/05
02/14106
04/05/06
OS/25106
07/14/06
09/02/06
10/22106
12/11/06
01130107
03/21107
05/10107 1-3
06/29/07 ~
08/18107 ~ I
10107/07 N
""""" 11/26/07 ~ 01/15108 ~
03/05/08 ~ ""'i
04/24/08 ~
06/13/08 ~ ~ 08/02/08 ~ =-09/21108 0 11/10108 -<
12/30108 ~ ""'i
02/18109 1-3 ....
04/09/09 9
05/29/09 ~ --07/18/09 ?
09/06/09 "a"
10/26109 -9 12/15/09 ~ ---02/03/10
03125/10
05/14/10
07/03/10
08/22/10
10/11/10
11130/10
01/19/11
03/10/11
04/29/11
06/18/11
08/07/11
09/26/11
11115/11
01104/12
02/23/12
Depth Below Measuring Point (ft.)
VI 00 VI
00
L r---1\
~
~
VI 0\
~ ~
VI VI VI VI
~
'" [> ,
~
07/29/05
09117105
11106/05
12/26/05
02114/06
04/05/06
OS/25106
07114/06
09/02/06
10/22/06
12111/06
01130107
03/21107
05110107 ~
06/29/07 ~
08118107 ~ I
10107/07 N N
11126107 ~ 01115/08 ""'" 03/05/08 ~ ""1
04/24/08 ~
06/13108 ~ "'C 08/02/08 ""'" =-09/21/08 0 11110108 -<
12130108 ~ ""1
02/18/09 ~ ...
04/09/09 9
05/29/09 ~ -..
07/18/09 ?
09/06/09 "a"
10/26/09 -9 12/15/09 "'C '-" 02/03110
03125/10
05114110
07/03110
08/22/10
10111110
11130110
01119111
03110111
04/29111
06118/11
I~ 08/07111
09/26/11
11115/11
01/04/12
02/23/12
Depth Below Measuring Point (ft.)
0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\ 0\
\0 \0 00 00 -..) -..) 0\ 0\ VI
09/13/07
11102/07
12/22/07
02/10108
03/31108
OS/20108
07/09/08
08/28108
10/17108 ~
12106/08 ~ ~
01125109 I N ~
03/16/09 ~ 05/05/09 ..... t'tI "1
06/24/09 0
t'tI
08/1 3/09 "C ..... =-10102/09 0 -< 11/21109 t'tI "1
01110/10 ~ ....
9
03/01/10 t'tI -..
04/20/10 ?
0-
06/09/10 -9
07/29/10 "C "-"
09/17/10
11106/10
12/26/10
02/14/11
04/05/11
05/25/11
07/14111
09/02/11
10/22/11
12/11111
Depth Below Measuring Point (ft.)
VI VI
0
09/13/07
11102107
12122/07
02110108
03/31108
05/20108
07/09/08
08/28/08
10117108 1-3
12/06/08 ~ ,&;;;..
01125109 I N ,&;;;..
03116/09 ~ 05/05/09 f""I" ~ "1
06/24/09 ~ ~
08113109 "0 f""I" =-10102/09 0 -< 11121109 ~ "1
01110110 1-3 ....
S 03/01110 ~ ,,-.,
04120110 ~
r:::J"
06/09110 -S
07129110 "0 '-"
09117110
11106110
12126110
02114111
04/05111
05/25111
07114111
09/02111
10122111
12111111
Depth Below Measuring Point (ft.)
VI o
~ • / <
I,
•
•
~
VJ o N o ....... o 0
09/13/07
11102/07
12/22/07
02/10108
03/31108
05/20108
07/09/08
08/28/08
10/17/08 ~
12/06/08 ~ ~
01125109 I N VI
03/16/09 ~ 05/05/09 f"'I" t'D ""'i
06/24109 ~ t'D
08113/09 "0 f"'I" =-10102/09 0 -< 11121109 t'D ""'i
01/10110 ~ ....
9
03/01110 t'D --04/20110 ?
r::r
06/09110 -9
07/29/10 "0 '-"
09/17110
11/06110
12/26110
02/14111
04/05111
OS/25111
07114111
09/02111
10122/11
12111111
----Q.;
= -.c
~ '-'
~
= .... ~ ;.. ~ ;;.
0
.d ... Q.;
~ ~
;..
~ ... ~
\0 N I ~ ~ ~
111£ZIZ1
111171160
11190/90
1119Z1ZO
01181111
01101180
01lZO/~0
o o ."t \0
~
~ ~ ~ ~ r-.
~ ~
0 0 0 0 0 ~ ~ ~ \0 ~
."t ."t ."t ."t ."t \0 \0 \0 \0 \0
ClJ) lU!Od iJupnSB;:WoJ: MOPS: qldga
o 00 ~
TabG
Depths to Groundwater and Elevations Over Time for Chloroform Monitoring Wells
Water Levels and Data over Time
White Mesa Mill-Well MW4
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 01/10/80 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 09/15/80 94.30 92.74
5,527.93 10/08/80 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 02/01/85 94.20 92.64
5,528.33 06/01/85 94.00 92.44
5,528.93 09/01/85 93.40 91.84
5,528.93 10/01/85 93.40 91.84
5,528.93 11101/85 93.40 91.84
5,528.83 12/01/85 93.50 91.94
5,512.33 03/01/86 110.00 108.44
5,528.91 06/19/86 93.42 91.86
5,528.83 09/01186 93.50 91.94
5,529.16 12/01/86 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 08/14/87 93.25 91.69
5,529.00 11/20/87 93.33 91.77
5,528.75 01126/88 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 11/02/88 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 11/13/90 92.80 91.24
5,529.86 02/27/91 92.47 90.91
5,529.91 OS/21/91 92.42 90.86
5,529.77 08/27/91 92.56 91.00
5,529.79 12/03/91 92.54 90.98
5,530.13 03/17/92 92.20 90.64
5,529.85 06/11/92 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 12/14/93 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 06127/95 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 03120/97 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 05111100 66.30 64.74
5,555.73 05/15/00 66.60 65.04
5,555.98 05125/00 66.35 64.79
5,556.05 06/09/00 66.28 64.72
5,556.18 06/16/00 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 07118/00 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 09113/00 65.60 64.04
5,556.82 09120/00 65.51 63.95
5,556.84 09129100 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
Measuriug Measured Total
Water Land Poiut Depth to Depth to Total
Elevation Surface Elevation Leugth 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 10/12/00 65.44 63.88
5,556.98 10/19/00 65.35 63.79
5,557.01 10/23/00 65.32 63.76
5,557.14 11/09/00 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 02/09/01 64.55 62.99
5,558.28 03/29/01 64.05 62.49
5,558.23 04/30101 64.10 62.54
5,558.31 05/31101 64.02 62.46
5,558.49 06/22/01 63.84 62.28
5,558.66 07110101 63.67 62.11
5,559.01 08/20101 63.32 61.76
5,559.24 09/19/01 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 01103/02 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 04/09/02 62.05 60.49
5,560.76 OS/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 09/11102 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 01/09/03 60.94 59.38
5,561.41 02112/03 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 09/11/03 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 . 61.97
5,560.08 03128/04 62.25 60.69
5,560.55 04112/04 61.78 60.22
5,561.06 05/13/04 61.27 59.71
5,561.48 06118/04 60.85 59.29
5,561.86 07/28/04 60.47 58.91
5,529.17 08 /30104 93.16 91.60
5,536.55 09116/04 85 .78 84.22
5,529.00 10111104 93.33 91.77
5,541.55 11/16/04 80.78 79.22
5,541.12 12122/04 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 72.10
5,549.53 05124/05 72.80 71.24
5,544.36 06/30105 77.97 76.41
5,545.16 07129/05 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 06113/06 76.18 74.62
5,545.15 07/18/06 77.18 75.62
5,545.91 11117/06 76.42 74.86
5,545.90 02127/07 76.43 · 74.87
5,548.16 05/02/07 74.17 72.61
5,547.20 08/13/07 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 06125/08 77.24 75.68
5,550.36 08126/08 71.97 70.41
5,550.39 10/14/08 71.94 70.38
5,542.25 03/03 /09 80.08 78.52
5,542.25 06/24/09 80.08 78.52
5,550.19 09110109 72.14 70.58
5,550.94 12/11109 71.39 69.83
5,546.08 03/11110 76.25 74.69
5,550.98 05111110 71.35 69.79
5,548.33 09129/10 74.00 72.44
5,551.01 12/21110 71.32 69 .76
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
5,547.00 02128/11 75.33 73.77
5,557.54 06/21111 64.79 63.23
5,551.14 09/20/11 71.19 69.63
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 5,618.58 1.02 111.04
5,537.23 11108/99 81.35 80.33
5,537.38 11109/99 81.20 80.18
5,537.48 01102/00 81.10 80.08
5,537.48 01110/00 81.10 80.08
5,537.23 01117/00 81.35 80.33
5,537.28 01124/00 81.30 80.28
5,537.28 02/01100 81.30 80.28
5,537.18 02/07/00 81.40 80.38
5,537.48 02/14/00 81.10 80.08
5,537.48 02123/00 81.10 80.08
5,537.58 03/01/00 81.00 79.98
5,537.68 03/08/00 80.90 79.88
5,537.98 03/15/00 80.60 79.58
5,537.68 03120/00 80.90 79.88
5,537.68 03129/00 80.90 79.88
5,537.43 04/04/00 81.15 80.13
5,537.18 04/13/00 81.40 80.38
5,537.48 04121/00 81.10 80.08
5,537.68 04128/00 80.90 79.88
5,537.58 05/01100 81.00 79.98
5,537.88 05/11100 80.70 79.68
5,537.58 05/15/00 81.00 79.98
5,537.88 OS/25/00 80.70 79.68
5,537.88 06/09/00 80.70 79.68
5,537.90 06/16/00 80.68 79.66
5,537.88 06126/00 80.70 79.68
5,538.10 07/06/00 80.48 79.46
5,538.04 07/13/00 80.54 79.52
5,538.16 07/18/00 80.42 79.40
5,538.42 07127/00 80.16 79.14
5,538.56 08/02/00 80.02 79.00
5,538.68 08/09/00 79.90 78.88
5,538.66 08/15/00 79.92 78.90
5,538.33 08/31100 80.25 79.23
5,539.18 09/01100 79.40 78.38
5,539.12 09/08/00 79.46 78.44
5,539.34 09/13/00 79.24 78.22
5,539.50 09/20/00 79.08 78.06
5,539.69 10/05/00 78.89 77.87
5,540.33 11109/00 78.25 77.23
5,540.74 12/06/00 77.84 76.82
5,542.39 01/14/01 76.19 75.17
5,543.69 02/02/01 74.89 73.87
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 5,618.58 1.02 111.04
5,544.96 03/29/01 73.62 72.60
5,545.45 04/30/01 73.13 72.1 1
5,545.89 05/31101 72.69 71.67
5,546.19 06121101 72.39 71.37
5,546.50 07/10/01 72.08 71.06
5,547.18 08/20/01 71.40 70.38
5,547.59 09/19/01 70.99 69.97
5,547.84 10/02/01 70.74 69.72
5,548.12 11108/01 70.46 69.44
5,548.65 12/03/01 69.93 68.91
5,548.87 01103/02 69.71 68.69
5,549.37 02/06/02 69.21 68.19
5,550.00 03126/02 68.58 67 .56
5,550.22 04/09/02 68.36 67.34
5,550.81 OS/23/02 67.77 66.75
5,550.79 06/05/02 67.79 66.77
5,551.08 07/08/02 67.50 66.48
5,551.54 08/23/02 67.04 66.02
5,551.79 09/11102 66.79 65.77
5,552.19 10/23/02 66.39 65.37
5,552.27 11122/02 66.3 1 65.29
5,552.48 12/03/02 66.10 65.08
5,552.74 01/09/03 65 .84 64.82
5,552.92 02/12/03 65.66 64.64
5,553.40 03126/03 65.18 64.16
5,553.48 04/02/03 65.10 64.08
5,552.32 05/01103 66.26 65.24
5,550.53 06/09/03 68.05 67.03
5,550.09 07/07/03 68.49 67.47
5,549.64 08/04/03 68.94 67.92
5,549.31 09/11103 69.27 68.25
5,549.58 10/02/03 69.00 67.98
5,549.50 11107/03 69.08 68.06
5,550.07 12/03/03 68.51 67.49
5,551.86 01/15/04 66.72 65.70
5,552.57 02/10/04 66.01 64.99
5,553.63 03/28/04 64.95 63.93
5,554.04 04/12/04 64.54 63.52
5,554.60 05/13/04 63.98 62.96
5,556.28 06/18/04 62.30 61.28
5,556.61 07128/04 61.97 60.95
5,554.21 08/30/04 64.37 63.35
5,553.49 09/16/04 65.09 64.07
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 5,618.58 1.02 111.04
5,552.53 10111104 66.05 65.03
5,552.42 11116/04 66.16 65.14
5,552.46 12/22/04 66.12 65.10
5,552.07 01118/05 66.51 65.49
5,552.21 02128/05 66.37 65.35
5,552.26 03/15/05 66.32 65.30
5,552.30 04/26/05 66.28 65.26
5,552.25 05/24/05 66.33 65.31
5,552.22 06/30105 66.36 65.34
5,552.15 07129/05 66.43 65.41
5,552.47 09112/05 66.11 65 .09
5,552.50 12/07/05 66.08 65 .06
5,552.96 03/08/06 65.62 64.60
5,553.23 06/14/06 65.35 64.33
5,557.20 07118/06 61.38 60.36
5,553.32 11/07/06 65.26 64.24
5,554.35 02/27/07 64.23 63.21
5,554.07 05/02/07 64.51 63.49
5,554.07 08/14/07 64.51 63.49
5,553.88 10/10/07 64.70 63.68
5,555.73 03/26/08 62.85 61.83
5,556.60 06/24/08 61.98 60.96
5,556.83 08126/08 61.75 60.73
5,556.87 10/14/08 61.71 60.69
5,556.90 03/10/09 61.68 60.66
5,556.91 06/24/09 61.67 60.65
5,556.61 09110109 61.97 60.95
5,556.78 12/11109 61.8 60.78
5,556.75 03/11110 61 .83 60.81
5,556.19 05/11110 62.39 61.37
5,555.26 09/29110 63.32 62.30
5,554.66 12121110 63.92 62.90
5,554.74 02128111 63.84 62.82
5,554.57 06/21111 64.01 62.99
5,554.l3 09120111 64.45 63.43
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 5,624.72 1.62 121.125
5,548.57 11108/99 76.15 74.53
5,548.57 11109/99 76.15 74.53
5,548.32 01102/00 76.40 74.78
5,548.52 01110/00 76.20 74.58
5,548.32 01117/00 76.40 74.78
5,548.72 01124/00 76.00 74.38
5,548.62 02/01100 76.10 74.48
5,548.62 02/07/00 76.10 74.48
5,549.02 02/14/00 75.70 74.08
5,549.12 02/23/00 75.60 73.98
5,549.22 03/01/00 75.50 73.88
5,549.32 03/08/00 75.40 73.78
5,549.22 03/15/00 75.50 73.88
5,549.92 03/20/00 74.80 73.18
5,549.72 03/29/00 75.00 73.38
5,549.42 04/04/00 75.30 73.68
5,549.52 04/13/00 75.20 73.58
5,549.72 04/21100 75.00 73.38
5,549.82 04/28/00 74.90 73.28
5,549.82 05/01100 74.90 73.28
5,550.12 05111100 74.60 72.98
5,549.82 05/15/00 74.90 73.28
5,550.12 OS/25/00 74.60 72.98
5,550.12 06/09/00 74.60 72.98
5,550.22 06/16/00 74.50 72.88
5,550.07 06/26/00 74.65 73.03
5,550.17 07/06/00 74.55 72.93
5,550.17 07/13/00 74.55 72.93
5,550.18 07/18/00 74.54 72.92
5,550.33 07/27/00 74.39 72.77
5,550.38 08/02/00 74.34 72.72
5,550.40 08/09/00 74.32 72.70
5,550.42 08/15/00 74.30 72.68
5,550.54 08/31/00 74.18 72.56
5,550.87 09/08/00 73.85 72.23
5,550.97 09/13/00 73.75 72.13
5,551.04 09/20/00 73.68 72.06
5,545.83 10/05/00 78.89 77.27
5,546.47 11109/00 78.25 76.63
5,546.88 12/06/00 77.84 76.22
5,552.18 01126/01 72.54 70.92
5,552.20 02/02/01 72.52 70.90
5,551.10 03/29/01 73.62 72.00
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 5,624.72 1.62 121.125
5,551.59 04/30101 73.13 71.51
5,552.03 05/31/01 72.69 71.07
5,552.33 06/21/01 72.39 70.77
5,552.64 07110101 72.08 70.46
5,553.32 08/20101 71.40 69.78
5,553.73 09/19/01 70.99 69.37
5,553.98 10/02/01 70.74 69.12
5,554.14 11/08/01 70.58 68.96
5,554.79 12/03/01 69.93 68.31
5,554.74 01/03/02 69.98 68.36
5,554.91 02/06/02 69.81 68 .19
5,555.15 03/26/02 69.57 67.95
5,555.39 04/09/02 69.33 67 .71
5,555.73 OS/23/02 68.99 67 .37
5,555.79 06/05102 68.93 67.31
5,555.91 07/08/02 68.81 67.19
5,556.04 08/23/02 68.68 67.06
5,556.25 09/11102 68.47 66.85
5,556.72 10/23/02 68.00 66.38
5,556.42 11/22/02 68.30 66.68
5,557.01 12/03/02 67.71 66.09
5,557.20 01/09/03 67.52 65.90
5,557.35 02/12/03 67.37 65.75
5,557.83 03/26/03 66.89 65.27
5,557.87 04/02/03 66.85 65.23
5,553.71 05/01103 71.01 69.39
5,548.98 06/09/03 75.74 74.12
5,548.14 07/07/03 76.58 74.96
5,547.75 08/04/03 76.97 75.35
5,547.22 09/11103 77.50 75.88
5,547.68 10102/03 77.04 75.42
5,547.52 11107/03 77.20 75.58
5,548.29 12/03/03 76.43 74.81
5,554.00 01115104 70.72 69.10
5,555.46 02110104 69.26 67.64
5,556.90 03/28/04 67.82 66.20
5,557.49 04112/04 67.23 65.61
5,558.07 05/13/04 66.65 65.03
5,558.19 06/18/04 66.53 64.91
5,559.00 07/28/04 65.72 64.10
5,554.26 08/30104 70.46 68.84
5,551.97 09/16/04 72.75 71.13
5,549.65 10/11/04 75.07 73.45
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 5,624.72 1.62 121.125
5,549.89 11116/04 74.83 73.21
5,550.37 12/22/04 74.35 72.73
5,549.95 01118/05 74.77 · 73.15
5,550.09 02/28/05 74.63 73.01
5,550.13 03115/05 74.59 72.97
5,550.18 04/26/05 74.54 72.92
5,550.32 OS/24/05 74.40 72.78
5,550.21 06/30/05 74.51 72.89
5,550.11 07/29/05 74.61 72.99
5,550.33 09112/05 74.39 72.77
5,550.29 12/07/05 74.43 72.81
5,551.30 03/08/06 73.42 71.80
5,551.42 06/14/06 73.3 71.68
5,550.52 07118/06 74.20 72.58
5550.52 11107/06 74.20 72.58
5552.89 02/27/07 71.83 70.21
5,552.06 05/02/07 72.66 71.04
5,552.02 08114/07 72.7 71.08
5,552.20 10110/07 72.52 70.90
5,554.58 03/26/08 70.14 68.52
5,555.23 06/24/08 69.49 67.87
5,555.29 08/26/08 69.43 67.81
5,555.43 10/14/08 69.29 67.67
5,555.73 03/10/09 68.99 67.37
5,556.25 06/24/09 68.47 66.85
5,555.94 09/10/09 68.78 67.l6
5,556.53 12/11109 68.19 66.57
5,557.87 03/11110 66.85 65 .23
5,557.63 05/11110 67.09 65.47
5,557.24 09/29110 67.48 65.86
5,557.00 12/21110 67.72 66.l0
5,557.61 02/28111 67.11 65.49
5,557.58 06/21111 67.14 65.52
5,557.46 09/20111 67.26 65.64
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
5,63l.21 5,632.23 l.02 141
5,565.78 11/29/99 66.45 65.43
5,566.93 01/02/00 65.30 64.28
5,567.03 01/10/00 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 03/15/00 64.53 63.51
5,568.03 03/20/00 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 04/13/00 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 05/01/00 64.10 63.08
5,568.53 05/11/00 63.70 62.68
5,568.23 05/15/00 64.00 62.98
5,568.53 OS/25/00 63.70 62.68
5,568.61 06/09/00 63.62 62.60
5,568.69 06116/00 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 07/13/00 63 .74 62.72
5,568.55 07118/00 63.68 62.66
5,568.65 07/27/00 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 08/31/00 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 09/20/00 63.27 62.25
5,568.93 10/05/00 63.3 62.28
5,569.34 11/09/00 62.89 6l.87
5,568.79 12/06/00 63.44 62.42
5,569.11 01/03/01 63.12 62.10
5,569.75 02/09/01 62.48 61.46
5,570.34 03/28/01 6l.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 04/30/01 61.62 60.60
5,570.70 05/31101 61 .53 60.51
5,570.88 06/21101 61.35 60.33
5,571.02 07/10/01 61.21 60.19
5,571.70 08/20/01 60.53 59.51
5,572.12 09/19/01 60.11 59.09
5,572.08 10/02/01 60.15 59.13
5,572.78 11108/01 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 04/09/02 57.97 56.95
5,575.39 OS/23/02 56.84 55.82
5,574.84 06/05/02 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 09/11102 56.15 55.13
5,576.30 10/23/02 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 01/09/03 55.27 54.25
5,577.11 02/12/03 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 05/01103 54.34 53.32
5,577.91 06/09/03 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 09/11103 54.52 53 .50
5,577.31 10/02/03 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 01115/04 53.99 52.97
5,578.38 02/10/04 53.85 52.83
5,578.69 03/28/04 53 .54 52.52
5,579.15 04/12/04 53.08 52.06
5,579.47 05/13/04 52.76 51.74
5,579.53 06/18/04 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 10/11104 52.11 51.09
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
5,579.93 11/16/04 52.30 51.28
5,580.07 12122/04 52.16 51.14
5,579.80 01/18/05 52.43 51.41
5,580.35 02128/05 51.88 50.86
5,580.57 03/15/05 51.66 50.64
5,580.86 04126/05 51.37 50.35
5,581.20 05124/05 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 09/12/05 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 08/14/07 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 08126/08 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 06124/09 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 03/11/10 48.6 47.58
5,583.82 05/11/10 48.41 47.39
5,583.51 09/29/10 48.72 47.70
5,582.86 12121/10 49.37 48.35
5,582.60 02128/11 49.63 48.61
5,590.00 06121/11 42.23 41.21
5,582.70 09/20/11 49.53 48.51
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 05125/00 101.34 100.16
5,518.985 06/09/00 94.50 93.32
5,512.145 06/16/00 101.34 100.16
5,517.465 06126/00 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 88.82
5,523.845 08/09/00 89.64 88.46
5,523.885 08/15/00 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 09120/00 94.40 93.22
5,522.165 10/05/00 91.32 90.14
5,524.665 11109/00 88.82 87.64
5,518.545 12/06/00 94.94 93.76
5,527.695 01103/01 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 06122/01 79.08 77.90
5,533.145 07/10/01 80.34 79.16
5,534.035 08120/01 79.45 78.27
5,534.465 09/19/01 79.02 77.84
5,533.285 10/02/01 80.20 79.02
5,533.865 11108/01 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
5,538.825 08123/02 74.66 73.48
5,539.275 09/11102 74.21 73.03
5,539.765 10/23/02 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
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
5,540.985 02112/03 72.50 71.32
5,541.675 03126/03 71.81 70.63
5,541.765 04/02/03 71.72 70.54
5,541.885 05/01103 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 09/11103 71.66 70.48
5,541.885 10/02/03 71.60 70.42
5,541.995 11107/03 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 02/10/04 70.78 69.60
5,543.225 03128/04 70.26 69.08
5,543.555 04/12/04 69.93 68.75
5,543.865 05/13/04 69.62 68.44
5,543.915 06/18/04 69.57 68.39
5,544.655 07128/04 68.83 67.65
5,544.795 08/30/04 68.69 67.51
5,544.845 09/16/04 68.64 67.46
5,544.705 10/11104 68.78 67.60
5,544.525 11116/04 68.96 67.78
5,544.625 12122/04 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 03/15/05 68.80 67.62
5,544.675 04126/05 68.81 67.63
5,544.785 05124/05 68.70 67.52
5,544.795 06/30/05 68.69 67.51
5,544.775 07129/05 68.71 67.53
5,545.005 09112/05 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 07118/06 67.63 66.45
5,545.805 11107/06 67.68 66.50
5546.675 02127/07 66.81 65.63
5,546.535 05/02/07 66.95 65.77
5,547.155 08/15/07 66.33 65.15
5,547.215 10/10/07 66.27 65.09
5,548.305 03126/08 65.18 64.00
5,548.865 06124/08 64.62 63.44
5,549.235 08126/08 64.25 63.07
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
5,549.305 10/14/08 64.18 63.00
5,549.725 03/03/09 63.76 62.58
5,549.905 06/24/09 63.58 62.40
5,549.695 09110/09 63.79 62.61
5,549.865 12/11109 63.62 62.44
5,545.60 03/11110 67.89 66.71
5,530.88 05/11110 82.61 81.43
5,545.24 09/29110 68.25 67.07
5,533.66 12/21110 79.83 78.65
5,544.44 02/28/11 69.05 67.87
5,543.73 06/21/11 69.76 68.58
5,540.48 09/20/11 73.01 71.83
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 Snrface 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 01/02/00 61.40 59.45
5,579.60 01/10/00 61.10 59.15
5,579.35 01/17/00 61.35 59.40
5,579.60 01/24/00 61.10 59.15
5,579.50 02/01/00 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 04/21/00 60.30 58.35
5,580.50 04/28/00 60.20 58.25
5,580.50 05/01/00 60.20 58.25
5,580.90 05/11/00 59.80 57.85
5,580.50 05/15/00 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 06/16/00 59.78 57.83
5,580.80 06/26/00 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 08/31/00 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 11/09/00 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 03/28/01 58.16 56.21
5,582.72 04/30/01 57.98 56.03
5,582.72 05/31/01 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) Monitoring (blw.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 07/10101 57.78 55.83
5,583.17 08/20101 57.53 55.58
5,583.28 09/19101 57.42 55.47
5,583.36 10/02/01 57.34 55.39
5,583.49 11108/01 57.21 55.26
5,583.84 12/03/01 56.86 54.91
5,583.79 01103/02 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 04/09102 56.58 54.63
5,584.55 OS/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.l0
5,584.90 08/23/02 55.80 53.85
5,585.02 09/11102 55.68 53.73
5,585.20 10/23/02 55.50 53.55
5,585.15 11122/02 55.55 53.60
5,585.42 12/03/02 55.28 53.33
5,585.65 01109/03 55.05 53.10
5,585.65 02/12/03 55.05 53.l0
5,585.92 03/26/03 54.78 52.83
5,586.22 04/02/03 54.48 52.53
5,586.01 05/01103 54.69 52.74
5,584.81 06/09103 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 09/11/03 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 01/15/04 55.42 53.47
5,585.50 02/10/04 55.20 53.25
5,585.87 03/28/04 54.83 52.88
5,586.20 04/12/04 54.50 52.55
5,586.45 05/13/04 54.25 52.30
5,586.50 06/18/04 54.20 52.25
5,587.l3 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 10/11/04 55.53 53.58
5,584.64 11116/04 56.06 54.11
5,584.77 12/22/04 55.93 53.98
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
5,584.65 01/18/05 56.05 54.10
5,584.98 02128/05 55.72 53.77
5,585.15 03/15/05 55.55 53.60
5,586.25 04126/05 54.45 52.50
5,586.79 05124/05 53.91 51.96
5,586.52 06/30105 54.18 52.23
5,586.03 07129/05 54.67 52.72
5,586.05 09/12/05 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 02127/07 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 10/10/07 53.90 51.95
5,588.48 03126/08 52.22 50.27
5,586.51 06124/08 54.19 52.24
5,586.45 08126/08 54.25 52.30
5,585.40 10/14/08 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 03111110 55.04 53.09
5,584.86 05/11/10 55.84 53.89
5,584.55 09129/10 56.15 54.20
5,584.17 12121110 56.53 54.58
5,583.55 02128/11 57.15 55.20
5,584.72 06/21111 55.98 54.03
5,584.62 09120/11 56.08 54.13
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/25/00 86.50 85.05
5,521.51 06/09/00 87.27 85.82
5,522.35 06/16/00 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 07/13/00 86.65 85.20
5,522.17 07/18/00 86.61 85.16
5,522.26 07/25/00 86.52 85.07
5,522.31 08/02/00 86.47 85.02
5,522.33 08/09/00 86.45 85.00
5,522.35 08/15/00 86.43 84.98
5,522.40 08/31/00 86.38 84.93
5,522.40 09/08/00 86.38 84.93
5,522.45 09/13/00 86.33 84.88
5,522.53 09/20/00 86.25 84.80
5,522.39 10/05/00 86.39 84.94
5,522.42 11/09/00 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 02/09/01 86.06 84.61
5,522.90 03/26/01 85.88 84.43
5,522.70 04/30/01 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 07/10/01 85.82 84.37
5,523.10 08/20/01 85.68 84.23
5,523.23 09/19/01 85.55 84.10
5,523.21 10/02/01 85.57 84.12
5,523.25 11/08/01 85.53 84.08
5,523.46 12/03/01 85.32 83.87
5,523.36 01/03/02 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 OS/23/02 84.55 83.10
5,523.98 06/05/02 84.80 83.35
5,524.31 07/08/02 84.47 83.02
5,524.36 08/23/02 84.42 82.97
5,524.49 09/11/02 84.29 82.84
5,524.71 10/23/02 84.07 82.62
5,524.60 11/22/02 84.18 82.73
5,524.94 12/03/02 83.84 82.39
5,525.10 01/09/03 83.68 82.23
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
5,525.15 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 05/01103 83.04 81.59
5,525.98 06/09103 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 09/11103 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 01115/04 81.95 80.50
5,526.81 02110104 81.97 80.52
5,527.14 03/28/04 81.64 80.19
5,527.39 04112/04 81.39 79.94
5,527.64 05/13/04 81.14 79.69
5,527.70 06/18/04 81.08 79.63
5,528.16 07/28/04 80.62 79.17
5,528.30 08/30104 80.48 79.03
5,528.52 09116/04 80.26 78.81
5,528.71 10/11104 80.07 78.62
5,528.74 11116/04 80.04 78.59
5,529.20 12/22/04 79.58 78.13
5,528.92 01/18/05 79.86 78.41
5,529.51 02/28/05 79.27 77.82
5,529.74 03115/05 79.04 77.59
5,529.96 04/26/05 78.82 77.37
5,530.15 OS/24/05 78.63 77.18
5,530.35 06/30105 78.43 76.98
5,530.47 07/29105 78.31 76.86
5,530.95 09/12/05 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 06/13/06 75.29 73.84
5,532.58 07118/06 76.20 74.75
5,532.88 11/07/06 75.90 74.45
5534.09 02/27/07 74.69 73.24
5,534.04 05/02/07 74.74 73.29
5,534.43 08114/07 74.35 72.90
5,554.54 10/10/07 54.24 52.79
5,535.40 03/26/08 73.38 71.93
5,535.55 06/24/08 73.23 71.78
5,535.90 08/26/08 72.88 71.43
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
5,535.87 10114/08 72.91 71.46
5,536.42 03110/09 72.36 70.91
5,536.71 06124/09 72.07 70.62
5,536.83 09/10/09 71.95 70.50
5,537.35 12111109 71.43 69.98
5,537.93 03111110 70.85 69.40
5,538.14 05111/10 70.64 69.19
5,538.03 09129/10 70.75 69.30
5,538.04 12121110 70.74 69.29
5,537.98 02128111 70.8 69.35
5,538.46 06121111 70.32 68.87
5,538.37 09120111 70.41 68.96
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 01/10/00 67.20 66 .00
5,553.72 01/17/00 67.35 66.15
5,553.97 01/24/00 67.10 65 .90
5,553.87 02/01/00 67.20 66.00
5,553.87 02/07/00 67.20 66.00
5,554.17 021l4/00 66.90 65.70
5,554.27 02123 /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 03/15/00 66.80 65.60
5,554.77 03/20/00 66.30 65.10
5,554.57 03129/00 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 04128/00 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 06126/00 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 08/31/00 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 10123/00 64.85 63.65
5,556.36 11/09/00 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 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
5,556.15 12/06/00 64.92 63.72
5,556.89 01/14/01 64.18 62.98
5,557.07 02/09101 64.00 62.80
5,557.62 03129101 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 06/21101 63.23 62.03
5,557.98 07110101 63.09 61.89
5,558.33 08120101 62.74 61.54
5,558.57 09/19101 62.50 61.30
5,558.53 10/02/01 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 04/09102 61.52 60.32
5,560.06 05123/02 61.01 59.81
5,559.91 06/05102 61.16 59.96
5,560.09 07/08/02 60.98 59.78
5,560.01 08123/02 61.06 59.86
5,560.23 09/11/02 60.84 59.64
5,560.43 10/23/02 60.64 59.44
5,560.39 11122/02 60.68 59.48
5,560.61 12/03/02 60.46 59.26
5,560.89 01109103 60.18 58.98
5,560.94 02/12/03 60.13 58.93
5,561.28 03126/03 59.79 58.59
5,561.35 04/02/03 59.72 58.52
5,546.20 05101103 74.87 73 .67
5,539.47 06/09/03 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 09111/03 79.16 77 .96
5,544.62 10102/03 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 01/15104 63.90 62.70
5,558.65 02/10/04 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 06/18/04 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 07/28/04 59.43 58.23
5,543.00 08/30104 78.07 76.87
5,541.91 09/16104 79.16 77.96
5,540.08 10/11104 80.99 79.79
5,546.92 11116/04 74.15 72.95
5,546.97 12/22/04 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 03/15105 74.26 73.06
5,548.19 04126105 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 07/29105 74.15 72.95
5,547.26 09/12/05 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 07/18/06 71.03 69.83
5,548.32 11107/06 72.75 71.55
5,550.44 02127/07 70.63 69.43
5,549.69 05102/07 71.38 70.18
5,549.97 08/14/07 71.10 69.90
5,550.30 10/10/07 70.77 69.57
5,551.92 03126108 69.15 67.95
5,552.94 06124/08 68.13 66.93
5,552.34 08/26108 68.73 67.53
5,552.61 10/14/08 68.46 67.26
5,552.81 03/10/09 68.26 67.06
5,553.11 06124/09 67.96 66.76
5,552.55 09/10109 68.52 67.32
5,553.06 12/11109 68.01 66.81
5,554.64 03/11110 66.43 65.23
5,554.20 05111110 66.87 65.67
5,553.45 09/29110 67 .62 66.42
5,553.40 12/21/10 67 .67 66.47
5,553.93 02/28111 67 .14 65.94
5,553.67 06/21111 67.4 66.20
5,553.46 09120/11 67.61 66.41
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 5,621.40 4.60 126.00
5,546.40 11129/99 75.00 70.40
5,546.20 01/02/00 75.20 70.60
5,546.50 01/10/00 74.90 70.30
5,546.30 01/17/00 75.10 70.50
5,546.60 01/24/00 74.80 70.20
5,546.50 02/01/00 74.90 70.30
5,546.50 02/07/00 74.90 70.30
5,546.90 02/14/00 74.50 69.90
5,546.95 02123/00 74.45 69.85
5,547.05 03/01/00 74.35 69.75
5,547.05 03/08/00 74.35 69.75
5,547.10 03/15/00 74.30 69.70
5,547.50 03/20/00 73.90 69.30
5,547.40 03/29/00 74.00 69.40
5,547.20 04/04/00 74.20 69.60
5,547.40 04/13/00 74.00 69.40
5,547.60 04/21/00 73.80 69.20
5,547.70 04/28/00 73.70 69.10
5,547.70 05/01/00 73.70 69.10
5,548.00 05/11/00 73.40 68.80
5,547.70 05/15/00 73.70 69.10
5,547.90 05125/00 73.50 68.90
5,547.90 06/09/00 73.50 68.90
5,548.00 06/16/00 73.40 68.80
5,547.87 06126/00 73.53 68.93
5,547.95 07/06/00 73.45 68.85
5,547.96 07/13/00 73.44 68.84
5,547.95 07/18/00 73.45 68.85
5,548.11 07127/00 73.29 68.69
5,548.15 08/02/00 73.25 68.65
5,548.17 08/09/00 73.23 68.63
5,548.16 08/15/00 73.24 68.64
5,548.40 08/31/00 73.00 68.40
5,548.50 09/08/00 72.90 68.30
5,548.62 09/13/00 72.78 68.18
5,548.75 09120/00 72.65 68.05
5,548.76 10/05/00 72.64 68.04
5,549.00 11/09/00 72.40 67.80
5,548.85 12/06/00 72.55 67.95
5,549.47 01/03/01 71.93 67.33
5,549.89 02/09/01 71.51 66.91
5,550.37 03/27/01 71.03 66.43
5,550.50 04/30/01 70.90 66.30
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 5,621.40 4.60 126.00
5,550.68 05/31/01 70.72 66.12
5,550.68 06/20101 70.72 66.12
5,551.02 07/10101 70.38 65.78
5,551.32 08/20101 70.08 65.48
5,551.49 09/19101 69.91 65.31
5,551.64 10/02/01 69.76 65.16
5,551.81 11/08/01 69.59 64.99
5,552.22 12/03/01 69.18 64.58
5,552.16 01103/02 69.24 64.64
5,552.38 02/06102 69.02 64.42
5,552.85 03/26102 68.55 63.95
5,552.83 04/09102 68.57 63.97
5,553.20 OS/23/02 68.20 63.60
5,553.16 06105/02 68.24 63.64
5,553.32 07 /08/02 68.08 63.48
5,553.49 08 /23/02 67.91 63.31
5,553.69 09/11/02 67.71 63.11
5,554.09 10/23/02 67 .31 62.71
5,554.02 11/22/02 67.38 62.78
5,554.23 12/03/02 67 .17 62.57
5,554.43 01109103 66.97 62.37
5,554.42 02/12/03 66.98 62.38
5,554.71 03126103 66.69 62.09
5,554.83 04/02/03 66.57 61.97
5,552.21 05/01/03 69.19 64.59
5,547.93 06109103 73.47 68.87
5,546.97 07/07/03 74.43 69.83
5,546.58 08/04/03 74.82 70.22
5,546.24 09/11/03 75.16 70.56
5,546.38 10/02/03 75.02 70.42
5,546.40 11107/03 75 .00 70.40
5,546.59 12/03/03 74.81 70.21
5,551.29 01115/04 70.11 65.51
5,552.69 02110104 68.71 64.11
5,554.06 03128/04 67.34 62.74
5,554.52 04/12/04 66.88 62.28
5,555.06 05/13/04 66.34 61.74
5,555.11 06/18/04 66.29 61.69
5,555.88 07/28/04 65.52 60.92
5,552.97 08/30104 68.43 63.83
5,550.65 09116104 70.75 66.15
5,548.40 10/11104 73.00 68.40
5,548.28 11116104 73.12 68.52
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 5,621.40 4.60 126.00
5,548.80 12/22/04 72.60 68.00
5,548.43 01118/05 72.97 68.37
5,548.61 02128/05 72.79 68.19
5,548.64 03/15/05 72.76 68.16
5,548.65 04126/05 72.75 68.15
5,548.85 05/24/05 72.55 67.95
5,548.73 06/30105 72.67 68.07
5,548.62 07129/05 72.78 68 .18
5,548.80 09/12/05 72.60 68.00
5,548.71 12/07/05 72.69 68.09
5,549.72 03/08/06 71.68 67 .08
5,549.70 06113/06 71.70 67.10
5,549.70 07/18/06 71.70 67.10
5,549.65 11107/06 71.75 67.15
5,551.11 02/27/07 70.29 65.69
5,550.20 05/02/07 7l.20 66.60
5,550.59 08/14/07 70.81 66.21
5,550.76 10/10/07 70.64 66.04
5,55l.95 03126/08 69.45 64.85
5,552.36 06/24/08 69.04 64.44
5,552.50 08126/08 68.9 64.30
5,552.56 10/14/08 68.84 64.24
5,552.91 03/03/09 68.49 63.89
5,553.27 06124/09 68.13 63.53
5,553.12 09110109 68.28 63.68
5,553.63 12/11109 67.77 63.17
5,554.65 03111110 66.75 62.15
5,554.57 05/11110 66.83 62.23
5,554.34 09/29/10 67.06 62.46
5,554.09 12121/10 67.31 62.71
5,554.50 02128/11 66.9 62.30
5,554.79 06/21111 66.61 62.01
5,554.63 09/20111 66.77 62.17
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 12120/99 60.5 59.02
5,577.09 01102/00 60.5 59.02
5,577.29 01/10/00 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 02/01100 60.3 58.82
5,577.19 02/07/00 60.4 58.92
5,577.69 02/14/00 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 03120/00 69.1 67.62
5,578.14 03129/00 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 04128/00 59.2 57.72
5,578.39 05/01/00 59.2 57.72
5,578.79 05/11/00 58.8 57.32
5,578.39 05/15/00 59.2 57.72
5,578.79 05125/00 58.8 57.32
5,578.81 06/09/00 58.78 57.30
5,578.89 06/16/00 58.7 57.22
5,578.74 06126/00 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 07/18/00 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 08/15/00 58.55 57.07
5,579.25 08/31/00 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 09120/00 58.13 56.65
5,579.44 10/05/00 58.15 56.67
5,579.79 11/09/00 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 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
5,581.04 05/31101 56.55 55.07
5,581.12 06121/01 56.47 54.99
5,581.15 07/10/01 56.44 54.96
5,581.51 08120101 56.08 54.60
5,581.70 09/19101 55.89 54.41
5,581.61 10/02/01 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 01103/02 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 04/09102 54.82 53.34
5,583.21 05123/02 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 08123/02 53.92 52.44
5,583.82 09/11102 53.77 52.29
5,584.01 10123/02 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 01109103 53.31 51.83
5,584.41 02/12/03 53.18 51.70
5,584.68 03126/03 52.91 51.43
5,584.49 04/02/03 53.10 51.62
5,584.51 05101103 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 09/11103 55.02 53.54
5,582.25 10102/03 55.34 53.86
5,582.09 11107/03 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 02/10104 53.70 52.22
5,584.30 03128/04 53.29 51.81
5,584.59 04/12/04 53.00 51.52
5,584.87 05/13/04 52.72 51.24
5,584.96 06/18/04 52.63 51.15
5,585.50 07128/04 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
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
5,583.54 12122/04 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 03/15105 53.72 52.24
5,584.74 04126/05 52.85 51.37
5,585.26 05124/05 52.33 50.85
5,585.06 06/30105 52.53 51.05
5,584.67 07/29/05 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 06113/06 52.85 51.37
5,584.26 07118/06 53.33 51.85
5,584.21 11107/06 53.38 51.90
5,584.67 02/27/07 52.92 51.44
5,584.06 05102/07 53 .53 52.05
5,585.33 08114/07 52.26 50.78
5,585.42 10110107 52.17 50.69
5,587.01 03126/08 50.58 49.10
5,585.44 06124/08 52.15 50.67
5,585.23 08126/08 52.36 50.88
5,584.42 10114/08 53.17 51.69
5,583.59 03 /03/09 54 52.52
5,583.35 06124/09 54.24 52.76
5,582.91 09/10/09 54.68 53.20
5,583.43 12/11109 54.16 52.68
5,584.00 03111110 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 12121110 54.51 53.03
5,582.63 02128/11 54.96 53.48
5,583.62 06121111 53.97 52.49
5,583.52 09120/11 54.07 52.59
Water Levels and Data over Time
White Mesa MiII-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) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,631.99 5,634.24 2.25 111
5,576.75 01103/02 57.49 55.24
5,576.92 02/06/02 57.32 55 .07
5,577.43 03126/02 56.81 54.56
5,577.22 04/09/02 57.02 54.77
5,577.80 05123/02 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 53.3 3
5,578.66 02/12/03 55.58 53.33
5,578.78 03126/03 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 10/02/03 57.88 55.63
5,576.05 11107/03 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 02110/04 56.43 54.18
5,578.47 03128/04 55.77 53.52
5,578.69 04/12/04 55.55 53.30
5,578.93 05/13/04 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 08/30/04 55.18 52.93
5,578.78 09116/04 55.46 53.21
5,577.80 10111104 56.44 54.19
5,577.13 11/16/04 57.11 54.86
5,576.96 12/22/04 57.28 55 .03
5,576.63 01118/05 57.61 55.36
5,576.82 02128/05 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 OS/24/05 56.23 53.98
5,578.15 06/30/05 56.09 53.84
5,577.90 07129/05 56.34 54.09
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) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,631.99 5,634.24 2.25 III
5,578.02 09/12/05 56.22 53.97
5,577.56 12/07/05 56.68 54.43
5,579.69 03/08/06 54.55 52.30
5,578.34 06/13/06 55.90 53.65
5,577.94 07/18/06 56.30 54.05
5,578.01 11/07/06 56.23 53.98
5578.43 02/27/07 55.81 53.56
5,577.84 05/02/07 56.40 54.15
5,578.74 08/14/07 55.50 53.25
5,579.04 10/10107 55.20 52.95
5,580.69 03/26/08 53.55 51.30
5,579.87 06/24/08 54.37 52.12
5,579.47 08/26/08 54.77 52.52
5,578.87 10/14/08 55.37 53.12
5,578.01 03/10109 56.23 53.98
5,577.85 06/24/09 56.39 54.14
5,577.49 09/10109 56.75 54.50
5,577.98 12/11/09 56.26 54.01
5,578.38 03/11/10 55.86 53.61
5,578.16 05/11/10 56.08 53.83
5,577.85 09129/10 56.39 54.14
5,577.28 12/21/10 56.96 54.71
5,577.14 02/28/11 57.1 54.85
5,578.09 06/21/11 56.15 53.90
5,578.24 09120111 56 53.75
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
5,621.92 5,623.62 1.70 100
5,548.32 01103/02 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 04/09102 74.78 73.08
5,549.30 OS/23/02 74.32 72.62
5,549.01 06/05/02 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 09/11102 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 05/01103 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 09111103 73.18 71.48
5,550.47 10102/03 73.15 71.45
5,550.60 11/07/03 73.02 71.32
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 06118/04 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 10111/04 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 05/24/05 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 to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,621.92 5,623.62 1.70 100
5,553.86 09/12/05 69.76 68.06
5,555.30 12/07/05 68.32 66.62
5,556.20 03/08/06 67.42 65 .72
5,556.48 06114/06 67.14 65.44
5,556.37 07118/06 67.25 65.55
5,556.94 11 /07/06 66.68 64.98
5557.92 02/27/07 65.7 64
5,557 .84 05/02/07 65.78 64.08
5,558.02 08115/07 65.60 63.90
5,557.13 10/10/07 66.49 64.79
5,569.74 03/26/08 53 .88 52.18
5,561.01 06/24/08 62.61 60.91
5,562.07 08/26/08 61 .55 59.85
5,562.47 10/14/08 61.15 59.45
5,563.80 03110109 59.82 58 .12
5,564.27 06/24/09 59.35 57.65
5,564.32 09/10/09 59.3 57.60
5,564.70 12/11109 58.92 57.22
5,565.14 03/11110 58.48 56.78
5,565.61 05111110 58.Q1 56.31
5,565.67 09/29110 57.95 56.25
5,565.62 12/21110 58 56.30
5,565.42 02/28/11 58.2 56.50
5,566.01 06/21111 57.61 55.91
5,566.03 09/20/11 57.59 55.89
Water Levels and Data over Time
White Mesa Mill -Well TW 4-12
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 5,624.23 1.85 101.5
5,580.91 08/23/02 43.32 41.47
5,581.54 09/11102 42.69 40.84
5,581.33 10/23/02 42.90 41.05
5,581.47 11122/02 42.76 40.91
5,581.55 12/03/02 42.68 40.83
5,582.58 01109/03 41.65 39.80
5,582.47 02112/03 41.76 39.91
5,582.71 03/26/03 41.52 39.67
5,582.11 04/02/03 42.12 40.27
5,582.92 05/0ll03 41.31 39.46
5,583.13 06/09/03 41.10 39.25
5,583.21 07/07/03 41.02 39.17
5,583.31 08/04/03 40.92 39.07
5,583.55 09/1l103 40.68 38.83
5,583.72 10/02/03 40.51 38.66
5,583.77 11107/03 40.46 38.61
5,584.01 12/03/03 40.22 38.37
5,584.37 01115/04 39.86 38.01
5,584.39 02/10/04 39.84 37.99
5,584.51 03/28/04 39.72 37.87
5,584.90 04/12/04 39.33 37.48
5,584.88 05/13/04 39.35 37.50
5,584.93 06/18/04 39.30 37.45
5,585.36 07/28/04 38.87 37.02
5,585.38 08/30/04 38.85 37.00
5,585.49 09/16/04 38.74 36.89
5,585.85 1O/1l104 38.38 36.53
5,585.91 11/16/04 38.32 36.47
5,586.35 12/22/04 37.88 36.03
5,586.14 01118/05 38.09 36.24
5,586.56 02/28/05 37.67 35.82
5,586.95 03/15/05 37.28 35.43
5,587.20 04/26/05 37.03 35.18
5,587.35 OS/24/05 36.88 35.03
5,587.58 06/30/05 36.65 34.80
5,587.58 07/29/05 36.65 34.80
5,587.94 09/12/05 36.29 34.44
5,588.43 12/07/05 35.80 33.95
5,588.92 03/08/06 35.31 33.46
5,588.34 06/13/06 35.89 34.04
5,588.33 07/18/06 35.90 34.05
5,584.70 11107/06 39.53 37.68
5588.85 02/27/07 35.38 33.53
Water Levels and Data over Time
White Mesa Mill -Well TW 4-12
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 5,624.23 1.85 101.5
5,588.53 05102/07 35.70 33.85
5,586.49 08/14/07 37.74 35.89
5,586.68 10110107 37.55 35.70
5,587.76 03126/08 36.47 34.62
5,587.59 06124/08 36.64 34.79
5,587.35 08/26/08 36.88 35.03
5,586.84 10/14/08 37.39 35.54
5,586.17 03/03/09 38.06 36.21
5,585.74 06124/09 38.49 36.64
5,585.54 09/10/09 38.69 36.84
5,585.77 12111/09 38.46 36.61
5,585.88 03/11110 38.35 36.50
5,586.35 05111110 37.88 36.03
5,585.68 09129/10 38.55 36.70
5,585.09 12121110 39.14 37.29
5,584.65 02128111 39.58 37.73
5,584.76 06121111 39.47 37.62
5,584.32 09120111 39.91 38.06
Water Levels and Data over Time
White Mesa Mill-Well TW4-13
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 1.85 102.5
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 01109/03 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 05/01103 88.40 86.55
5,538.46 06/09/03 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 09/11103 78.69 76.84
5,541.34 10102/03 78.60 76.75
5,541.69 11107/03 78.25 76.40
5,541.91 12/03/03 78.03 76.18
5,542.44 01115/04 77.50 75.65
5,542.47 02/10/04 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 05/13/04 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 09/16/04 74.71 72.86
5,546.20 10/11104 73.74 71.89
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 03/15/05 68.68 66.83
5,552.23 04/26/05 67.71 65.86
5,552.87 OS/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
5,558.13 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
5571.08 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
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 1.85 102.5
5,570.63 05/02/07 49.31 47.46
5,565.24 08/14/07 54.7 52.85
5,565.83 10110107 54.11 52.26
5,569.29 03126/08 50.65 48.80
5,570.00 06124/08 49.94 48.09
5,570.41 08/26/08 49.53 47.68
5,570.64 10114/08 49.3 47.45
5,570.43 03/03/09 49.51 47.66
5,570.56 06124/09 49.38 47.53
5,570.42 09110109 49.52 47 .67
5,571.15 12111109 48.79 46.94
5,572.01 03111110 47.93 46.08
5,572.88 05111110 47.06 45 .21
5,573.17 09129110 46.77 44.92
5,573.14 12121110 46.8 44.95
5,573.10 02128111 46.84 44.99
5,573.75 06/21/11 46.19 44 .34
5,573.63 09120111 46.31 44.46
Water Levels and Data over Time
White Mesa Mill -Well TW 4-14
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 93
5,518.90 08123/02 93.87 92.02
5,519.28 09/11102 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 05101103 91.53 89.68
5,521.34 06/09/03 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 09111/03 91.47 89.62
5,521.35 10102/03 91.42 89.57
5,521.36 11107/03 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 02/10/04 91.41 89.56
5,521.46 03/28/04 91.31 89.46
5,521.54 04/12/04 91.23 89.38
5,521.59 05/13/04 91.18 89.33
5,521.69 06/18/04 91.08 89.23
5,521.71 07/28/04 91.06 89.21
5,521.76 08/30104 91.01 89.16
5,521.77 09/16/04 91.00 89.15
5,521.79 10/11104 90.98 89.13
5,521.80 11/16/04 90.97 89.12
5,521.82 12122/04 90.95 89.10
5,521.82 01/18/05 90.95 89.10
5,521.86 02128/05 90.91 89.06
5,521.85 03/15/05 90.92 89.07
5,521.91 04126/05 90.86 89.01
5,521.93 05124/05 90.84 88.99
5,521.94 06/30105 90.83 88.98
5,521.84 07129105 90.93 89.08
5,521.99 09112/05 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 07/18/06 90.85 89.00
5,520.17 11107/06 92.60 90.75
5522.24 02127/07 90.53 88.68
Water Levels and Data over Time
White Mesa Mill -Well TW 4-14
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 93
5,522.47 05/02/07 90.30 88.45
5,520.74 08114/07 92.03 90.18
5,518.13 10110/07 94.64 92.79
5,522.85 03126/08 89.92 88.07
5,522.91 06124/08 89.86 88.01
5,523.01 08126/08 89.76 87.91
5,522.96 10/14/08 89.81 87.96
5,523.20 03/03/09 89.57 87.72
5,523.33 06124/09 89.44 87.59
5,523.47 09/10/09 89.3 87.45
5,523.54 12111/09 89.23 87.38
5,522.98 03111/10 89.79 87.94
5,524.01 05111110 88.76 86.91
5,524.37 09129110 88.40 86.55
5,524.62 12121110 88.15 86.30
5,524.78 02128/11 87.99 86.14
5,525.23 06/21/11 87.54 85.69
5,525.45 09120/11 87.32 85.47
Water Levels and Data over Time
White Mesa Mill-Well 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 09/11102 50.48 49.18
5,575.10 10123/02 50~35 49.05
5,574.99 11122/02 50.46 49.16
5,575.28 12/03/02 50.17 48.87
5,575.41 01109/03 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 05101103 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 09/11103 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 03128/04 51.20 49.90
5,574.77 04/12/04 50.68 49.38
5,575.53 05/13/04 49.92 48.62
5,575.59 06/18/04 49.86 48.56
5,576.82 07/28/04 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 04/26/05 65.43 64.13
5,546.11 OS/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 09112/05 69.97 68.67
5,551.09 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 07118/06 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 05102/07 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 06/25108 79.89 78 .59
Water Levels and Data over Time
White Mesa Mill -Well 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
5,545.82 08/26/08 79.63 78.33
5,545.64 10/14/08 79.81 78.51
5,544.45 03/03/09 81.00 79.70
5,545.32 06/24/09 80.13 78.83
5,544.61 09/10/09 80.84 79.54
5,549.33 12/11109 76.12 74.82
5,543.78 03/11/10 81.67 80.37
5,545.61 05/11/10 79.84 78.54
5,547.43 09/29/10 78.02 76.72
5,544.14 12/21110 81.31 80.01
5,546.77 02/28/11 78.68 77.38
5,537.60 06/21/11 87.85 86.55
5,551.46 09/20/11 73.99 72.69
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 1.83 142
5,562.91 08123/02 61.11 59.28
5,563.45 09111102 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 02/12/03 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 05/01103 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 09111103 62.29 60.46
5,561.04 10102/03 62.98 61.15
5,560.39 11/07/03 63.63 61.80
5,559.79 12/03/03 64.23 62.40
5,561.02 01115/04 63 61.17
5,561.75 02110104 62.27 60.44
5,562.98 03128/04 61.04 59.21
5,563.29 04/12/04 60.73 58.90
5,564.03 05/13/04 59.99 58.16
5,564.09 06118/04 59.93 58.10
5,565.08 07128/04 58.94 57 .11
5,564.56 08/30104 59.46 57.63
5,563.55 09116/04 60.47 58.64
5,561.79 10/11104 62.23 60.40
5,560.38 11116/04 63.64 61.81
5,559.71 12/22/04 64.31 62.48
5,559.14 01118/05 64.88 63.05
5,558.65 02128/05 65.37 63.54
5,558.54 03115/05 65.48 63.65
5,558.22 04126/05 65.8 63.97
5,558.54 05/24/05 65.48 63.65
5,559.24 06/30105 64.78 62.95
5,559.38 07129/05 64.64 62.81
5,559.23 09/12/05 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 06/13/06 65.55 63.72
5,558.42 07/18/06 65.60 63.77
5,558.09 11/07/06 65.93 64.10
5557.34 02127/07 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 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 1.83 142
5,547.11 05/02/07 76.91 75.08
5,558.52 08/14/07 65.5 63.67
5,559.02 10110107 65.00 63.17
5,561.04 03126/08 62.98 61.15
5,560.06 06124/08 63.96 62.13
5,559.32 08126/08 64.7 62.87
5,558.89 10114/08 65.13 63.30
5,558.40 03/03/09 65.62 63 .79
5,558.32 06124/09 65.7 63.87
5,558.03 09/10/09 65.99 64.16
5,558.81 12111109 65.21 63 .38
5,559.80 03111110 64.22 62.39
5,559.85 05111110 64.17 62.34
5,560.54 09129/10 63.48 61.65
5,558.65 12121110 65.37 63.54
5,559.26 02128/11 64.76 62.93
5,560.48 06121111 63.54 61.71
5,561.52 09120/11 62.5 60.67
Water Levels and Data over Time
White Mesa Mill -Well 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 1.83 130.6
5,542.17 08/23/02 83.07 81.24
5,542.39 09/11/02 82.85 81.02
5,542.61 10/23/02 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 01/09/03 82.21 80.38
5,543.04 02/12/03 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 05101/03 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 10102/03 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 06/18/04 80.65 78.82
5,545.08 07/28/04 80.16 78.33
5,545.26 08/30104 79.98 78.15
5,545.48 09/16/04 79.76 77.93
5,545.61 10/11/04 79.63 77.80
5,545.46 11/16/04 79.78 77.95
5,545.66 12122/04 79.58 77.75
5,545.33 01/18/05 79.91 78.08
5,545.51 02128/05 79.73 77.90
5,545.57 03/15105 79.67 77.84
5,545.46 04126/05 79.78 77.95
5,545.45 05124/05 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 06/13/06 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 02/27/07 78.43 76.6
Water Levels and Data over Time
White Mesa Mill -Well 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 1.83 130.6
5546.56 05/02/07 78.68 76.85
5546.81 08/15/07 78.43 76.6
5546.96 10/10107 78.28 76.45
5547.9 03126/08 77.34 75.51
5548.08 06125/08 77.16 75.33
5548.42 08126/08 76.82 74.99
5548.05 10/14/08 77.19 75.36
5548.29 03/03/09 76.95 75.12
5548.09 06/24/09 77.15 75.32
5547.79 09/10/09 77.45 75.62
5548.09 12/11109 77.15 75.32
5,548.50 03/11110 76.74 74.91
5,548.89 05/11110 76.35 74.52
5,548.83 09129/10 76.41 74.58
5,548.97 12121110 76.27 74.44
5,548.68 02128/11 76.56 74.73
5,549.33 06/21111 75.91 74.08
5,549.19 09/20/11 76.05 74.22
Water Levels and Data over Time
White Mesa Mill -Well TW 4-18
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
5,639.13 5,641 .28 2.15 137.5
5,585.13 08/23/02 56.15 54.00
5,585.41 09/11102 55.87 53.72
5,585.47 10123/02 55.81 53.66
5,585.40 11122/02 55.88 53.73
5,585.68 12/03/02 55.60 53.45
5,585.90 01109/03 55.38 53.23
5,590.79 02/12/03 50.49 48.34
5,586.18 03126/03 55.10 52.95
5,586.36 04/02/03 54.92 52.77
5,586.24 05/01103 55.04 52.89
5,584.93 06/09/03 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 09/11103 57.27 55.12
5,583.67 10/02/03 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 01/15/04 55 .83 53.68
5,585.66 02/10/04 55.62 53.47
5,586.13 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 06/18/04 54.51 52.36
5,587.35 07128/04 53 .93 51.78
5,586.34 08/30/04 54.94 52.79
5,585 .85 09/16/04 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 12122/04 56.47 54.32
5,584.68 01118/05 56.60 54.45
5,585.02 02128/05 56.26 54.11
5,585.25 03/15/05 56.03 53.88
5,586.31 04126/05 54.97 52.82
5,586.97 05124/05 54.31 52.16
5,586.58 06/30/05 54.70 52.55
5,586.10 07129/05 55.18 53 .03
5,586.05 09/12/05 55.23 53 .08
5,585.86 12/07/05 55.42 53.27
5,587.13 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 11107/06 55.90 53 .75
5585.83 02127/07 55.45 53 .30
Water Levels and Data over Time
White Mesa Mill -Well TW 4-18
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
5,639.13 5,641.28 2.15 137.5
5585.15 05102/07 56.13 53.98
5586.47 06/24/08 54.81 52.66
5586.3 08/26/08 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 09/10/09 57.4 55.25
5584.43 12/11/09 56.85 54.70
5,585.26 03/11/10 56.02 53.87
5,584.17 05111/10 57.11 54.96
5,583.61 09/29/10 57.67 55 .52
5,604.29 12121110 36.99 34.84
5,583.56 02/28/11 57.72 55.57
5,584.73 06/21111 56.55 54.40
5,584.71 09120/11 56.57 54.42
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 09111102 49.25 47.39
5,582.06 10/23/02 49.33 47.47
5,582.07 11122/02 49.32 47.46
5,582.16 12/03/02 49.23 47.37
5,582.28 01109/03 49.11 47.25
5,582.29 02/21/03 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 08/30/04 65.38 63.52
5,555.16 09116/04 76.23 74.37
5,549.80 10111104 81.59 79.73
5,546.04 11/16/04 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 02/28/05 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 OS/24/05 57.97 56.11
5,552.94 07/29/05 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 02/27/07 87.8 85.94
5544.55 05/02/07 86.84 84.98
5558.97 08/15/07 72.42 70.56
5559.73 10/10/07 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 10/14/08 72.94 71.08
5536.9 03/03/09 94.49 92.63
5547.76 06/24/09 83.63 81.77
5561.48 09110/09 69.91 68.05
5548.14 12111/09 83.25 81.39
5,570.58 03111110 60.81 58.95
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
5,561.35 05/11110 70.04 68.18
5,535.26 09/29/10 96.13 94.27
5,568.40 12/21110 62.99 61.13
5,550.36 02/28/11 81.03 79.17
5,570.41 06/21/11 60.98 59.12
5,567.84 09/20111 63.55 61.69
Water Levels and Data over Time
White Mesa Mill -Well TW 4-20
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 07/29/05 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 88.19
5,530.43 06/13/06 99.10 98.09
5,569.13 07/18/06 60.40 59.39
5,547.95 11107/06 81.58 80.57
5,549.25 02127/07 80.28 79.27
5,550.58 05/02/07 78.95 77.94
5,563.60 08/14/07 65.93 64.92
5,555.85 10/10/07 73.68 72.67
5,569.10 03/26/08 60.43 59.42
5,560.00 06125/08 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
5,534.18 06124/09 95.35 94.34
5,558.39 09/10/09 71.14 70.l3
5,560.99 12/11109 68.54 67.53
5,564.09 03/11110 65.44 64.43
5,564.22 05111110 65.31 64.30
5,560.33 09129/10 69.20 68.19
5,561.35 12/21110 68.18 67.17
5,560.18 02128111 69.35 68.34
5,576.23 06/21111 53 .3 52.29
Water Levels and Data over Time
White Mesa MiII-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
5,582.98 07129/05 56.37 55.22
5,583.43 08/30105 55 .92 54.77
5,581.87 09112/05 57.48 56.33
5,580.50 12/07/05 58.85 57 .70
5,583.64 03/08/06 55.71 54.56
5,580.55 06113/06 58.80 57.65
5,578.95 07/18/06 60.40 59.25
5,578.47 11107/06 60.88 59.73
5,579.53 02127/07 59.82 58.67
5,578.07 05/02/07 61.28 60.13
5,583.41 08115/07 55.94 54.79
5,583.45 10110107 55.9 54.75
5,586.47 03/26108 52.88 51.73
5,579.16 06124/08 60.19 59.04
5,579.92 08126108 59.43 58.28
5,577.37 10/14/08 61.98 60.83
5,578.00 03110109 61.35 60.20
5,580.14 06124/09 59.21 58.06
5,578.72 09/10/09 60.63 59.48
5,579.99 12111109 59.36 58.21
5,582.81 03111110 56.54 55.39
5,582.23 05111110 57.12 55.97
5,576.60 09/29110 62.75 61.60
5,581.14 12121110 58.21 57.06
5,579.53 02/28/11 59.82 58.67
5,584.17 06121111 55.18 54.03
5,584.80 09120/11 54.55 53.40
Water Levels and Data over Time
White Mesa Mill-Well TW4-22
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,627.83 5,629.00 1.17 113.5
5,571.89 07/29/05 57.11 55.94
5,572.20 08/30/05 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 03/08/06 57.15 55.98
5,571.62 06/13/06 57.38 56.21
5,57 1.42 07118/06 57.58 56.41
5,571.02 11/07/06 57.98 56.81
5571.24 02/27/07 57.76 56.59
5,570.75 06/29/07 58.25 57.08
5,571.82 08114/07 57.18 56.01
5,571.99 10/10/07 57.01 55.84
5,573.05 03/26/08 55.95 54.78
5,573.04 06/24/08 55.96 54.79
5,573.04 08/26/08 55.96 54.79
5,573.02 10114/08 55.98 54.81
5,573.19 03/10/09 55.81 54.64
5,573.32 06/24/09 55.68 54.51
5,573.17 09/10/09 55.83 54.66
5,513.52 12/11/09 55.48 54.31
5,573.88 03/11/10 55.12 53.95
5,574.29 05/11/10 54.71 53.54
5,574.88 09/29/10 54.12 52.95
5,574.44 12/21/10 54.56 53.39
5,574.49 02/28/11 54.51 53.34
5,574.97 06/21111 54.03 52.86
5,575.06 09/20/11 53.94 52.77
Water Levels and Data over Time
White Mesa Mill-Well TW4-23
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
5,605.77 5,607.37 1.60 113.5
5,538.89 09/13/07 68.48 66.88
5,538.80 10/10107 68.57 66.97
5,539.25 11/30107 68.12 66.52
5,539.49 12111/07 67 .88 66.28
5,539.19 01/08/08 68.18 66.58
5,539.44 02118/08 67.93 66.33
5,539.54 03/26/08 67.83 66.23
5,539.71 04/23/08 67 .66 66.06
5539.48 05/30108 67.89 66.29
5,539.53 06/24/08 67.84 66.24
5,539.44 07116/08 67.93 66.33
5,539.68 08/26/08 67.69 66.09
5,541.18 09110108 66.19 64 .59
5,539.57 10/14108 67.8 66.20
5,539.29 11/26/08 68 .08 66.48
5,539.55 12/29/08 67.82 66.22
5,540.15 01/26/09 67.22 65.62
5,539.74 02/24/09 67.63 66.03
5,539.86 03/06/09 67 .51 65.91
5,539.72 04/07/09 67.65 66.05
5,539.84 05/29/09 67.53 65.93
5,540.12 06/30109 67.25 65.65
5,540.12 07/31/09 67.25 65.65
5,540.27 08/31/09 67.1 65.50
5,540.13 09110109 67.24 65.64
5,540.64 12/11/09 66.73 65.13
5,541.15 03/11110 66.22 64.62
5,541.61 05/11110 65.76 64.16
5,541.47 09/29/10 65.90 64.30
5,541.54 12/21 /10 65.83 64.23
5,541.54 02/28111 65.83 64.23
5,541.98 06/21111 65.39 63.79
5,541.90 09/20/11 65.47 63.87
Water Levels and Data over Time
White Mesa MiII-Well TW4-24
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
5,625.70 5,627.83 2.13 113.5
5,570.61 09/13/07 57.22 55.09
5,570.53 10/10107 57.30 55.17
5,571.16 11/30107 56.67 54.54
5,571.30 1211 1/07 56.53 54.40
5,571.03 01/08/08 56.80 54.67
5,571.22 02118/08 56.61 54.48
5,571.43 03/26/08 56.40 54.27
5,571.68 04123/08 56.15 54.02
5571.52 05/30108 56.31 54.18
5,571.34 06124/08 56.49 54.36
5,571.28 07/16/08 56.55 54.42
5,571.34 08126/08 56.49 54.36
5,571.23 09/10/08 56.60 54.47
5,57 1.12 10/14/08 56.71 54.58
5,570.95 11126/08 56.88 54.75
5,570.92 12/29/08 56.91 54.78
5,571.65 01126/09 56.18 54.05
5,571.31 02124/09 56.52 54.39
5,571.37 03/06/09 56.46 54.33
5,571.21 04/07/09 56.62 54.49
5,571.23 05/29/09 56.60 54.47
5,571.42 06/30109 56.41 54.28
5,571.38 07/31109 56.45 54.32
5,571.48 08/31/09 56.35 54.22
5,571.28 09110109 56.55 54.42
5,571.64 1211 1/09 56.19 54.06
5,571.86 03/1 1110 55.97 53.84
5,571.91 05 /11/10 55.92 53.79
5,572.18 09129/10 55.65 53.52
5,571.86 12121110 55 .97 53.84
5,571.78 02128/11 56.05 53.92
5,572.40 06/21111 55.43 53.30
5,572.19 09/20/11 55.64 53.51
Water Levels and Data over Time
White Mesa Mill -Well TW 4-25
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 17.08 134.8
5,601.86 09/13/07 43.05 25.97
5,601.89 10/10/07 43.02 25.94
5,602.57 11/30/07 42.34 25.26
5,602.82 12/11/07 42.09 25.01
5,601.94 01/08/08 42.97 25.89
5,599.13 02/18/08 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 05/30/08 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 09/10/08 50.68 33.60
5,594.12 10/14/08 50.79 33.71
5,594.06 11/26/08 50.85 33.77
5,594.87 12/29/08 50.04 32.96
5,595.89 01/26/09 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 OS/29/09 47.36 30.28
5,598.11 06/30/09 46.8 29.72
5,598.22 07/31/09 46.69 29.61
5,598.52 08/31/09 46.39 29.31
5,598.49 09/10/09 46.42 29.34
5,599.48 12/11/09 45.43 28.35
5,599.75 03/11/10 45.16 28.08
5,599.63 05/11/10 45.28 28.20
5,598.68 09/29/10 46.23 29.15
5,598.66 12/21/10 46.25 29.17
5,598.18 02/28/11 46.73 29.65
5,598.61 06/21/11 46.30 29.22
5,598.08 09/20/11 46.83 29.75
Water Levels and Data over Time
White Mesa MiII-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 06/14/10 64.78 63.08
5,536.95 09129/10 64.73 63.03
5,537.17 12121110 64.51 62.81
5,537.16 02128/11 64.52 62.82
5,537.57 06121111 64.11 62.41
5,537.59 09120/11 64.09 62.39
TabH
Laboratory Analytical Reports
EN:RGY
LI\B ORATORI ES
&I. ,. www.energylab.com fr .r;\ ·H~lenQ, '~rB7H72-P711 • Billings, MT 800-135-44B9 • Casper, WY B88-23~-0515 ~I&\i An,lytIcslExc,lIsnc,Slnc, '952 )~JllMtte, ~Y86&~&B6-7i75 • R.apid City, SO 88H72-1225 • College Station, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab ID:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C11080835-026
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-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
41
4.9
1.1
1700
ND
ND
98.0
105
92.0
87.0
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: 09/06/11
Collection Date: 08/17/11 13:05
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
Qualifier RL QCL Method Analysis Date 1 By
1 A4500-CI B 08/25/11 16 :24 1 wc
D 0.5 E353.2 08/22111 15:131 dc
1.0 SW8260B 08/27/1 1 04:281 ilr
D 100 SW8260B 08/25/11 18:521 ilr
1.0 SW8260B 08/27/11 04:281 ilr
1.0 SW8260B 08/27/11 04:281 ilr
80-120 SW8260B 08/27/11 04:281 ilr
70-130 SW8260B 08/27/11 04:281 ilr
80-120 SW8260B 08/27/11 04:281 ilr
80-120 SW8260B 08/27/11 04:281 ilr
MCl -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 29 of 51
EN:RGY
LABORAT ORI ES
www.energylab.com
An.fytlcal £XCII/snc, Sines '952
Heiena,·MT'817·472~0711 • Billings, MT BOO·735·4489 • Casper, WY 88B~23~-0515
'. 'Gillette, WV 8Ga-68~~7f75 . Rapid City, SO 888-672-1225 • College Station, IX 888-690-2218 ~R"" •• , ,. , .
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab ID:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C11080835-025
Client Sample ID: TW4-1
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
36
6.8
ND
1300
ND
ND
98.0
103
90.0
88.0
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: 09/06/11
Collection Date: 08/18/11 06:47
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
Qualifier RL QCL Method Analysis Date 1 By
1 A4500-CI B 08/25/11 16:21 1 wc
D 0.5 E353.2 08/22/11 15:10 1 dc
1.0 SW8260B 08/26/11 03:20 1 jlr
D 100 SW8260B 08/25/11 18 :15 1 jlr
1.0 SW8260B 08/26/11 03:20 1 jlr
1.0 SW8260B 08/26/11 03:201 jlr
80-120 SW8260B 08/26/11 03 :20 1 jlr
70-130 SW8260B 08/26/11 03:20 1 jlr
80-120 SW8260B 08/26/11 03 :20 1 jlr
80-120 SW8260B 08/26/11 03 :20 1 jlr
MCl -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 28 of 51
EN:RGY
LAB ORATORIES
www.energylab.com
AnB/ytfCIII Excs//sncs Slncs '952
Helena, MT 8~H127071i • Billings, MT 800· 735·4489 . Casper, WY 888·235·0515 ~ . ,,"01~d~, WtQ6l·6,86:717~ • Rapid City, S0888~672·1225 • College Station, TX 888·690·2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
LablD:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C11080835-029
Client Sample ID: 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
48
6.0
1.6
2400
NO
NO
113
114
120
92.0
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: 09/06/11
Collection Date: 08/17/11 06:57
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
Qualifier RL QCL Method Analysis Date 1 By
1 A4500-CI B 08/25/11 16 :431 wc
o 0.5 E353.2 08/22111 15:301 dc
1.0 SW8260B 08/26/11 17: 13 1 jlr
o 100 SW8260B 08/26/11 14:20 1 jlr
1.0 SW8260B 08/26/11 17:131 jlr
1.0 SW8260B 08/26/11 17:13 1 jlr
80-120 SW8260B 08/26/11 17:13 1 jlr
70-130 SW8260B 08/26/11 17:13 1 jlr
80-120 SW8260B 08/26/11 17:131 jlr
80-120 SW8260B 08/26/11 17:13 1 jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 32 of 51
EN:RGY
LAB ORATORIES
W'MY.energylab.com
Analytfcal ExCS/lsnC9 Slnc9 1152
1 -Billings, MT 800-735-4489 -Casper, WY 888-235-0515
• RapidCitYiSD.888~~72-1225 . ColiegeStalian, TX 880-6.0-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
LablD:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C 11080835-004
Client Sample ID: TW4-3
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
23
4.0
ND
ND
ND
ND
113
108
125
91.0
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: 09/06/11
Collection Date: 08/16/11 14:40
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
Qualifier RL QCL Method Analysis Date 1 By
A4500-CI B 08/22/11 12:151 wc
D 0.2 E353.2 08/22111 13:501 dc
1.0 SW8260B 08/23/11 17:351 ilr
1.0 SW8260B 08/23/11 17:35 1 ilr
1.0 SW8260B 08/23/11 17:35 1 ilr
1.0 SW8260B 08/23/11 17:351 ilr
80-120 SW8260B 08/23/11 17:351 ilr
70-130 SW8260B 08/23/11 17:351 ilr
S 80-120 SW8260B 08/23/11 17:351 ilr
80-120 SW8260B 08/23/11 17:351 ilr
MCl -Maximum contaminant level.
ND -Not detected at the reporting limit.
S -Spike recovery outside of advisory limits.
Page 7 of 51
EN:RGY
LAB OIl:Al ORI ES
www.energylab.com
AnB/ytfcal Excsl/encs Sincs 1952
n'. 'i ,.';!.'He,I~~.a.':Mr'81l-4t2~0711 . Billings, MT 800-735-4489 -Casper, WY 888-235-0515
~~ ,Jljll~~§;,~U~6::~86-m5, • Rapid City, SO 888~'72-1225 • College Station, IX 888-6~0-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab ID:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C11080835-001
Client Sample ID: TW4-3R
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
NO
NO
NO
NO
NO
115
104
124
90.0
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
%REC
%REC
%REC
%REC
S -Spike recovery outside of advisory limits.
Report Date: 09/06/11
Collection Date: 08/15/11 06:45
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
Qualifier Rl QCl Method Analysis Date 1 By
A4500-CI B 08/22111 12:061 wc
0.1 E353.2 08/22111 13:431 dc
1.0 SW8260B 08/23/11 21 :38 1 jlr
1.0 SW8260B 08/23/11 21 :381 jlr
1.0 SW8260B 08/23/11 21 :38 1 jlr
1.0 SW8260B 08/23/11 21 :38 1 jlr
80-120 SW8260B 08/23/11 21 :38 1 jlr
70-130 SW8260B 08/23/11 21 :38 1 jlr
S 80-120 SW8260B 08/231.11 21 :38 1 jlr
80-120 SW8260B 08/23/11 21 :38 1 jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 4 of 51
EN:RGY
LA B OI1ATORI ES
www.energylab.com
Ma/yt/csl Excsl/,nc; Sinc, '952
~. i;~' " 'c:~.el~.na:·' .. n ~17-412-07t 1 • Billings, MT 800-135-4489 • Casper, WY 888-235-0515 )~:~l1ll.dl' .§~,ite:~ 8667l86-7i75 • Rapi!! City, SD .88B~672-1225 • College Station, lJ( 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab 10:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C11080835-027
Client Sample 10: TW4-4
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-0ichlorobenzene-d4
Surr: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
40
6.6
NO
1500
NO
NO
100
104
93.0
86.0
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: 09/06/11
Collection Date: 08/17/11 13:15
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
Qualifier Rl QCl Method Analysis Date 1 By
A4500-CI B 08/25/11 16:271 wc
o 0.5 E353.2 08/22/11 15:251 dc
1.0 SW8260B 08/27/11 05:051 jlr
o 100 SW8260B 08/27/11 03:521 jlr
1.0 SW8260B 08/27/11 05:051 jlr
1.0 SW8260B 08/27/11 05:051 jlr
80-120 SW8260B 08/27/11 05:05 1 jlr
70-130 SW8260B 08/27/11 05:051 jlr
80-120 SW8260B 08/27/11 05:051 jlr
80-120 SW8260B 08/27/11 05 :05 1 jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 30 of 51
www.energylab.com
Ans/ylf/lll/ hell/Inc, Slnc, 1952 EI\ERGY
LAB ORATORIES
• .' 'Helena, M{S77-412-0711 • Billings, MT BOO-735-44B9 · Casper, WY BB8-235-0515
"i '1 "",.,. '. ..' .. . , .. ~~!t~~!Wy~6.S~JB6·7175 • Rapid City, SDBBB~672-1225 • ColI~ge Station, IX 888-6~0-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab 10:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C11080835-016
Client Sample 10: TW4-5
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-d8
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
37
7.5
NO
10
NO
NO
100
117
91 ,0
94.0
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: 09/06/11
Collection Date: 08/17/11 06:45
DateReceived: 08/19/11
Matrix: Aqueous
MCll
Qualifier Rl QCl Method Analysis Date 1 By
A4500-CI B 08/25/11 14:37 1 wc
0 0.5 E353.2 08/22/11 14:351 dc
1.0 SW8260B 08/25/11 03:23 1 ilr
1.0 SW8260B 08/25/11 03:23/ ilr
1.0 SW8260B 08/25/11 03:23/ ilr
1.0 SW8260B 08/25/11 03:23 / ilr
80-120 SW8260B 08/25/11 03:23 / ilr
70-130 SW8260B 08/25/11 03 :23 / ilr
80-120 SW8260B 08/25/11 03:23/ ilr
80-120 SW8260B 08/25/11 03:23 / ilr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 19 of 51
EN:RGY
LABORAT ORIES
www.energylab.com
Analytical Excal/snc. Sinc.1952
" ' .~,~i~n.~2M(87H12-0711 • Billings, MT 800-735·4489 . Casper, WY 888-23~-0515
. I " • ~~,(!Y 8'SH86-7n5 . Rapid City, sil 88B~672·1225 • College Station, TX 888-6eO-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab ID:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C11080835-017
Client Sample ID: TW4-6
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-0ichlorobenzene-d4
Surr: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
39
0.3
NO
16
NO
NO
101
113
88.0
88.0
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: 09/06/11
Collection Date: 08/17/11 06:55
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
QCL Method Analysis Date 1 By
A4500-CI B 08/25/11 14 :48 / wc
E353.2 08/22111 14 :50 1 dc
SW8260B 08/25/11 04:00 1 ilr
SW8260B 08/25/11 04:00 1 ilr
SW8260B 08/25/11 04:00 1 ilr
SW8260B 08/25/11 04:00 / ilr
SW8260B 08/25/11 04:00 / ilr
SW8260B 08/25/11 04 :00 1 ilr
SW8260B 08/25/11 04:00/ ilr
SW8260B 08/25/11 04:001 ilr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 20 of 51
E~RGY
LABORATORIES
www.energylab.com
Ana/yffcsl Exc8/11111e8 Sines 1951
! ·H~je~a, Ml'·877·472-0711 • Billings, MT 800-735-4489 . Casper, WY 888-235-0515 .,~Q!II~t!Q, Wi 8tQ~686-1175·. Rapi!! City, SO 88B-~72-1225 • College Station, TJ( 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
LablD:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C 11080835-024
Client Sample 10: TW4-7
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
37
4.1
NO
1200
NO
NO
98.0
107
91.0
87.0
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: 09/06/11
Collection Date: 08/18/11 06:36
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
Qualifier RL QCL Method Analysis Date 1 By
A4500-CI B 08/25/11 16:191 wc
o 0.2 E353.2 08/22111 15:08 1 dc
1.0 SW8260B 08/26/11 02:44 1 jlr
o 100 SW8260B 08/25/11 17 :39 1 jlr
1.0 SW8260B 08/26/11 02:441 jlr
1.0 SW8260B 08/26/11 02:441 jlr
80-120 SW8260B 08/26/11 02:441 jlr
70-130 SW8260B 08/26/11 02:44 1 jlr
80-120 SW8260B 08/26/11 02:44 1 jlr
80-120 SW8260B 08/26/11 02:441 jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 27 of 51
EN:RGY
L I\B ORAT ORIES
www.energylab.com
Analytfcal Exell/snc, Sines 1952
Heilina, MT&77·472-0711 • Billings, MT 800·735·4489 . Casper, WV 888·235·0515 ". /" . 'r'" \.~ -.... '; <. Jlll.I~tt~ wy 86Q'f.@86·711~. Rapid City, SD.888~672-1225 • CollegeStalion, 1)( 888·6~O-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab ID:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C11080835-003
Client Sample ID: TW4-7R
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
NO
NO
2.8
NO
NO
114
107
132
90.0
Units
mg/l
mg/l
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
S -Spike recovery outside of advisory limits.
Report Date: 09/06/11
Collection Date: 08/17/11 08:49
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
Qualifier Rl QCl Method Analysis Date 1 By
A4500-CI B 08/22/11 12:11 1 wc
0.1 E353.2 08/22/11 13 :48 1 dc
1.0 SW8260B 08/23/11 17:00 1 jlr
1.0 SW8260B 08/23/11 17:00 1 jlr
1.0 SW8260B 08/23/11 17:001 jlr
1.0 SW8260B 08/23/11 17:001 jlr
80-120 SW8260B 08/23/11 17:00 1 jlr
70-130 SW8260B 08/23/11 17:00 1 jlr
S 80-120 SW8260B 08/23/11 17:00 1 jlr
80-120 SW8260B 08/23/11 17:00 1 jlr
MCl - Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 6 of 51
EN:RGY
LA B ORAT ORIES
www.energylab.com
Ans/ytfr:al Exc.l/.nc, Slncs 1952
. ' . ·Heje.n~, M(877.;472-0711 • Billings, MY 800-735-4489 • Casper, WY 888-235-0515
. '!lfu~DL ]llIlttte; W,i·.86~';'$B·6-7,17~ • Rapi!! Cijy, SO 8b8~672-1225 • College Station, TX 888-6~O-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab 10:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C11080835-011
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: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
46
0.1
NO
NO
NO
NO
114
122
124
89.0
Units
mg/l
mg/l
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
S -Spike recovery outside of advisory limits.
Report Date: 09/06/11
Collection Date: 08/16/11 14:50
DateReceived: 08/19/11
Matrix: Aqueous
MCll
Qualifier Rl QCl Method Analysis Date 1 By
A4500-CI B 08/25/11 13:56 1 wc
0.1 E353.2 08/22/11 14:181 dc
1.0 SW8260B 08/24/11 01 :421 jlr
1.0 SW8260B 08/24/11 01 :42 1 jlr
1.0 SW8260B 08/24/11 01 :42 1 jlr
1.0 SW8260B 08/24/11 01:421 jlr
80-120 SW8260B 08/24/11 01 :42 1 jlr
70-130 SW8260B 08/24/11 01 :42 1 jlr
S 80-120 SW8260B 08/24/11 01 :42 1 jlr
80-120 SW8260B 08/24/11 01 :421 jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 14 of 51
EN:RGY
LAB ORATORIES
www.energylab.com
AnalytlClI £Xcsl/enc; Sincs 1952
'14 " . '.; ijei~na~ 'MT&17-41.2-o711 • Billings, MT 800-135-4489 . Casper, WY 888-235-0515 ~~'(.~ I'; :~J,I~tt~;:WY s6i~86-711~ • Rapid City, SD888~~72-1225 • College Station, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: 3rd Quarter Chloroform 2011
Lab 10: C11080835-012
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 -Analyte reporting limit.
QCl -Quality control limit.
Result
21
4.0
NO
NO
NO
NO
118
129
130
92.0
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: 09/06/11
Collection Date: 08/16/11 14:21
DateReceived: 08/19/1 1
Matrix: Aqueous
MCL!
Qualifier Rl QCl Method Analysis Date 1 By
A4500-CIB 08/25/11 14:21 1 wc
0 0.2 E353.2 08/22/11 14 :20 1 dc
1.0 SW8260B 08/24/11 02:171 jlr
1.0 SW8260B 08/24/11 02:171 jlr
1.0 SW8260B 08/24/11 02: 171 jlr
1.0 SW8260B 08/24/11 02 :171 jlr
80-120 SW8260B 08/24/11 02:171 jlr
70-130 SW8260B 08/24/11 02: 171 jlr
S 80-120 SW8260B 08/24/11 02: 171 jlr
80-120 SW8260B 08/24/11 02:17/ jlr
MCl - Maximum contaminant level.
NO -Not detected at the reporting limit.
S -Spike recovery outside of advisory limits.
Page 15 of 51 .
EI\ERGY
LABORATORIES
W'MY.energylab.com
Analytical Excsl/snc' Sincs 1952
i • Billings,·Mt 800-735-44B9 · Casper, WY 88B-23~-D515
'SO 8QP~612" 1225 • College Station, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab 10:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C11080835-021
Client Sample 10: TW4-10
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-0ichlorobenzene-d4
Surr: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
41
1.9
NO
180
NO
NO
98.0
104
90.0
86.0
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: 09/06/11
Collection Date: 08/17/11 07:45
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
Qualifier Rl QCl Method Analysis Date 1 By
A4500-CI B 08/25/1116:13/wc
0.1 E353.2 08/22/11 15 :00 1 dc
1.0 SW8260B 08/26/11 00:54/ jlr
0 10 SW8260B 08/25/11 15:50/ jlr
1,0 SW8260B 08/26/11 00:54/ jlr
1.0 SW8260B 08/26/11 00:54/ jlr
80-120 SW8260B 08/26/11 00:54/ jlr
70-130 SW8260B 08/26/11 00:54/ jlr
80-120 SW8260B 08/26/11 00:541 jlr
80-120 SW8260B 08/26/11 00:54/ jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 24 of 51
, . . Heien~, MTS77-412-0711 • Billings, MT 800-735-4489 . Casper, WY 888·235-0515
... ·:]"._.1 '. ,(1':.1 -.:. • • • . ' ,'.~.1..:~!I!~n~, WY, 8~~\ .• 86·717~ • Rapid City, SD.888~~72-1225 • College Station, TX 888-6~0-2218 EN:RGY
L A B ORAT ORIES
www.energylab.com
Mafytfcsl £XClI/BneB SineB 1952
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab 10:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C11080835-023
Client Sample 10: TW4-11
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
48
7.1
NO
820
NO
NO
100
108
89.0
89.0
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: 09/06/11
Collection Date: 08/17/11 08:07
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
Qualifier RL QCL Method Analysis Date 1 By
A4500-CI B 08/25/11 16:161 wc
o 0.5 E353.2 08/22/11 15 :05 1 dc
1.0 SW8260B 08/26/11 02:071 jlr
o 100 SW8260B 08/25/11 17:031 jlr
1.0 SW8260B 08/26/11 02:07 1 jlr
1.0 SW8260B 08/26/11 02:07 1 jlr
80-120 SW8260B 08/26/11 02:071 jlr
70-130 SW8260B 08/26/11 02:071 jlr
80-120 SW8260B 08/26/11 02:07 1 jlr
80-120 SW8260B 08/26/11 02:071 jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 26 of 51
EI\ERGY
LI\B ORI\TORIE S
www.energylab.com
Analytical Excsllsnes Sines Ig52
!.. 1l~1~nJl,'MT8i1-472-0111 -Sillings, MT 800-135-4489 -Casper, WV 888-235-0515 , ... ~ . ..~ .. '-. ,".. ' . -. . ". . '"~GII!ette! ~i 8~.6-6B6-7175 -Rapid City, So 88B-612-1 225 • College Station, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab ID:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C 11080835-005
Client Sample ID: TW4-12
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
31
6.8
NO
NO
NO
NO
121
119
134
90.0
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: 09/06/11
Collection Date: 08/16/11 13:45
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
Qualifier RL QCL Method Analysis Date 1 By
A4500-CI B 08/22/11 12:18 1 wc
o 0.5 E353.2 08/22/11 13:531 dc
1.0 SW8260B 08/23/11 18:10 1 jlr
1.0 SW8260B 08/23/11 18 :101 jlr
1.0 SW8260B 08/23/11 18:101 jlr
1.0 SW8260B 08/23/11 18:101 jlr
S 80-120 SW8260B 08/23/11 18:10 1 jlr
70-130 SW8260B 08/23/11 18:101 jlr
S 80-120 SW8260B 08/23/11 18:101 jlr
80-120 SW8260B 08/23/11 18:101 jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
S -Spike recovery outside of advisory limits.
Page 8 of 51
EN:RGY
LAB ORAT OR IES
www.energylab.com
Ans!ytlClI ExeBl/enes Sine, 1952
:~eJe.~~,MrBlH12-0711 • aillings, MT 800·735-4489 . Casper, WY 888-235·0515
_~~",j;ll!e.*, WY'8t&~686.1175 • Rapid City, SD.888~672-1225 • College Station, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab 10:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C 11080835-006
Client Sample 10: TW4-13
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
60
5.2
ND
ND
ND
ND
117
112
133
90.0
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: 09/06/11
Collection Date: 08/16/11 13:51
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
Qualifier RL QCL Method Analysis Date 1 By
A4500-CI B 08/22111 12 :20 1 wc
D 0.5 E353.2 08/22111 13:551 dc
1.0 SW8260B 08/23/11 18:451 jlr
1.0 SW8260B 08/23/11 18 :45 1 jlr
1.0 SW8260B 08/23/11 18:451 jlr
1.0 SW8260B 08/23/11 18:451 jlr
80-120 SW8260B 08/23/11 18:45 1 jlr
70-130 SW8260B 08/23/11 18:45 1 jlr
S 80-120 SW8260B 08/23/11 18:451 jlr
80-120 SW8260B 08/23/11 18:451 jlr
MCL -Maximum contaminant level.
ND -Not detected at the reporting limit.
S -Spike recovery outside of advisory limits.
Page 9 of 51
EN:RGY
LABORAT ORIES
www.energylab.com
Analytical £XCIl/sncB Slnc, 1952
..Helena,M(877-472-0711 • Billings, MT 800-735-4489 . Casper, WY 888-235-0515 ~,~ " :~jll~e;~X:~Gc(Q86-7i7~ • RaplpCity"SD888~G72-1225 • CollegeStation,lX 888-6$0-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab ID:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C 11080835-007
Client Sample ID: 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: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
33
2.6
NO
NO
NO
NO
100
111
96.0
93.0
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: 09/06/11
Collection Date: 08/16/11 14:03
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
QCl Method Analysis Date 1 By
A4500-CI B 08/22/11 12:231 wc
E353.2 08/22111 13:581 dc
SW8260B 08/25/11 02 :07 1 jlr
SW8260B 08/25/11 02:071 jlr
SW8260B 08/25/11 02:07 1 jlr
SW8260B 08/25/11 02:071 jlr
SW8260B 08/25/11 02:071 jlr
SW8260B 08/25/11 02:071 jlr
SW8260B 08/25/11 02:071 jlr
SW8260B 08/25/11 02:071 jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 10 of 51
EI\ERGY
LABORAT ORIES
www.energylab.com
Analytfcsl [xCII/snC' Sine, '952
;~ . Heiena;;MT877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 {!: 1'. I' .. ,,,);~. ~ !",;,;·cl , .' . - . . ~JGille~e, WY8Sn,8S-n 75 • Rapid City, SD. 888-672-1225 • College Station, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab 10:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C11080835-028
Client Sample 10: TW4-15
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
58
0.9
ND
720
ND
7.2
112
114
116
92.0
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: 09/06/11
Collection Date: 08/17/11 12:50
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
Qualifier RL QCL Method Analysis Date 1 By
A4500-CI B 08/25/11 16 :28 1 wc
0.1 E353.2 08/22111 15 :28 1 dc
1.0 SW8260B 08/26/11 16:39 1 ilr
D 100 SW8260B 08/26/11 13:451 ilr
1.0 SW8260B 08/26/11 16:391 ilr
1.0 SW8260B 08/26/11 16:391 ilr
80-120 SW8260B 08/26/11 16 :39 1 ilr
70-130 SW8260B 08/26/11 16:391 ilr
80-120 SW8260B 08/26/11 16:391 ilr
80-120 SW8260B 08/26/11 16:391 ilr
MCl -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 31 of 51
EN:RGY
L.AB ORAT ORIES
www.energylab.com
An,lytIcal ExcIl/encB Since 1952
'Helega, MT 877 -412-0711 • Billings, MT 800-135-4489 • Casper, WY 888-235-0515
U~i!qi~Y .6$~J~6-m.5 . Rapid City, SD.88S-672-1225 · College,Station,1X 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab 10:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C11080835-018
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: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
Result
63
1.7
NO
9.2
NO
NO
103
118
88.0
86.0
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: 09/06/11
Collection Date: 08/17/11 07:05
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
QCl Method Analysis Date 1 By
A4500-CI B 08/25/11 15:14 1 wc
E353.2 08/22/11 14:53 1 dc
SW8260B 08/25/11 04:38 1 ilr
SW8260B 08/25/11 04:38 1 ilr
SW8260B 08/25/11 04:38 1 jlr
SW8260B 08/25/11 04:38 1 jlr
SW8260B 08/25/11 04:38 1 jlr
SW8260B 08/25/11 04:38 1 jlr
SW8260B 08/25/1 1 04:381 ilr
SW8260B 08/25/11 04:38 1 jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 21 of 51
www.energylab.com EN:RGY
LAB ORATORIES Analytical £XcIl/enes Sines 1952
• .' ' •. 1. Ifele,na,M(817.472-071i • Billings, MT 800·735·4489 · Casper, WY 888-235-0515 C!~c..'Ii~tG!!I~ne!~~8'J~$~6-7i 75 • Ralli~ City,SD .888~672-1225 • College,Station, 1)( 888-6~0-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab ID:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C 11080835-008
Client Sample ID: MW-32
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-dS
Report
Definitions:
Rl -Analyte reporting limit,
QCl -Quality control limit.
Result
33
NO
NO
NO
NO
NO
9S.0
12S
SS.O
91.0
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
SO-120
70-130
SO-120
SO-120
Report Date: 09/06/11
Collection Date: 08/16/11 12:55
DateReceived: 08/19/11
Matrix: Aqueous
MCll
QCl Method Analysis Date 1 By
A4500-CI B OS/22/11 12 :26 1 wc
E353.2 OS/22111 14:00 1 dc
SWS260B OS/25/11 02:451 jlr
SWS260B OS/25/11 02:45 1 jlr
SWS260B OS/25/11 02:45 1 jlr
SWS260B OS/25/11 02:45 1 jlr
SWS260B OS/25/11 02:45 1 jlr
SWS260B OS/25/11 02:451 jlr
SWS260B OS/25/11 02:45 1 jlr
SWS260B OS/25/11 02:45 1 jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 11 of 51
EN:RGY
LI\BOJ~ATORI ES
www.energylab.com
An./yIfca/ Exes//lncB SincB 1952
'. .'" '. ,~ej~n~ Mr817·4~2~0711 • Billings,MT 800·735·4489 • Casper, WV 888·235·0515 ~~,t ... ",->Q!I,I~!!i!J·Wy'~QlJ86.71j5 . Rapi~ City, SO 888~672·1225 • College Station, TX 888·6~0-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
LablD:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C11080835-019
Client Sample ID: TW4-18
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
23
4.6
NO
29
NO
NO
120
129
127
91 .0
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: 09/06/11
Collection Date: 08/17/11 07:21
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
Qualifier RL QCl Method Analysis Date 1 By
A4500-CI B 08/25/11 15:56 1 wc
o 0.5 E353.2 08/22/11 14:55 1 dc
1.0 SW8260B 08/24/11 06:201 jlr
1.0 SW8260B 08/24/11 06:20 1 jlr
1.0 SW8260B 08/24/11 06:20 1 jlr
1.0 SW8260B 08/24/11 06:20 1 jlr
80-120 SW8260B 08/24/11 06:20 1 jlr
70-130 SW8260B 08/24/11 06:201 jlr
S 80-120 SW8260B 08/24/11 06:201 jlr
80-120 SW8260B 08/24/11 06:201 jlr
MCL -Maximum contaminant level.
NO -Not detected at the reporting limit.
S -Spike recovery outside of advisory limits.
P~ge 22 of 51
EI\ERGY
l-AB ORATORIES
www.energylab.com
An8lytical ExCIl/sncB Sinc. 1952
.. Heleqa, Mt 877-472-0711 • Billings, MT 800-735-4489 · Casper, WY 888-235-0515 ,Giliette:WY'.866~6B6-7175 • Rapid City, SO 888-672-1225 • College Station, 1)( 888-690-2218 .v...... .i1.>:,·.li. ". • ~'., ,'.:.,' . .,' '. . " , ."' •
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab ID:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C 11080835-030
Client Sample ID: TW4-19
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
148
3.0
2.1
970
ND
ND
111
115
119
92.0
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: 09/06/11
Collection Date: 08/17/11 14:00
DateReceived: 08/19/11
Matrix: Aqueous
MCll
Qualifier Rl QCl Method Analysis Date 1 By
A4500-CI B 08/25/11 16:471 wc
D 0.2 E353.2 08/22/11 15 :33 1 dc
1.0 SW8260B 08/26/11 17 :481 jlr
D 100 SW8260B 08/26/11 14:55 1 jlr
1.0 SW8260B 08/26/11 17:48 1 jlr
1.0 SW8260B 08/26/11 17:481 jlr
80-120 SW8260B 08/26/11 17:481 jlr
70-130 SW8260B 08/26/11 17:48 1 jlr
80-120 SW8260B 08/26/11 17:48 1 jlr
80-120 SW8260B 08/26/11 17:48 1 jlr
MCl -Maximum contaminant level.
ND -Not detected at the reporting limit.
Page 33 of 51
EN:RGY
L.A B ORATORIE S
WIWI.energylab.com
Analytical Excsllsncs SInes 1952
·ilel~qa,Mh17·412-0711 • Billings, MT 800·735·4489 . Casper, WY 888-235-0515
",p' }.~,~~. it'!!iII~tt~,:'wf~'66~~86-7175 • Rapid Clty,S988B~672·1225 • College.Station, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab 10:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C 11080835-031
Client Sample 10: TW4-20
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-0ichlorobenzene-d4
Surr: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
207
6.5
7.3
6800
NO
3.1
98.0
101
97.0
96.0
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: 09/06/11
Collection Date: 08/17/11 12:40
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
Qualifier RL QCL Method Analysis Date 1 By
A4500-CI B 08/25/11 16:49 1 wc
o 0.5 E353.2 08/22/11 15:351 dc
1.0 SW8260B 08/27/11 18:471 ilr
o 1000 SW8260B 08/26/11 15 :29 1 ilr
1.0 SW8260B 08/27/11 18:47 1 ilr
1.0 SW8260B 08/27/11 18:471 ilr
80-120 SW8260B 08/27/11 18:47 1 ilr
70-130 SW8260B 08/27/11 18:471 ilr
80-120 SW8260B 08/27/11 18:47 1 ilr
80-120 SW8260B 08/27/11 18:47 1 ilr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 34 of 51 .
EN:RGY
LABORATORIES
,( 'tleieqa, MTS1H72-D711 • Billings, MT 800-735-4489 . Casper, WY 888-235-0515 :1li\l~,\t~"W:Y'86$~&86':;71 75 • Rapid City, so 888~672-'1225 • College Station, 1X 888-690-2218
www.energylab.com
Analytfcal Excellsnce Slncs '952
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab 10:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C11080835-022
Client Sample 10: TW4-21
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
287
14
6.3
460
NO
NO
103
107
94.0
88.0
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: 09/06/11
Collection Date: 08/17/11 07:55
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
Qualifier Rl QCl Method Analysis Date 1 By
A4500-CI B 08/25/1116:15 /wc
0 E353.2 08/22/11 15:03 1 de
1.0 SW8260B 08/27/11 05:41 1 jlr
0 10 SW8260B 08/25/11 16:26 1 jlr
1.0 SW8260B 08/27/11 05:41 1 jlr
1.0 SW8260B 08/27/11 05:41 1 jlr
80-120 SW8260B 08/27/11 05:41 1 jlr
70-130 SW8260B 08/27/11 05:41 1 jlr
80-120 SW8260B 08/27/11 05:41 1 jlr
80-120 SW8260B 08/27/11 05:41 1 jlr
MCl - Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 25 of 51
EN:RGY
LAB ORATORIES
www.energylab.com
An./ytIcal £XcII/snell Sines 1952
, . :He!ena, MT 877-412-0711 • Billings, MT 800-135-4489 • Casper, WY 888-235-0515 ""e_~ .:.,GiII,~!t~e,'W.Y 8'Q6~$86-7175 ~ Rapip City, SD.88B~672-1225 • College Station, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
LablD:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C11080835-020
Client Sample ID: TW4-22
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1.2-Dichlorobenzene-d4
Surr: Dibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
120
15
NO
450
NO
NO
119
122
125
90.0
o -Rl increased due to sample matrix.
Units
mg/L
mg/l
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
Report Date: 09/06/11
Collection Date: 08/17/11 07:35
DateReceived: 08/19/11
Matrix: Aqueous
MCll
Qualifier Rl QCl Method AnalysiS Date 1 By
A4500-CI B 08/25/11 15:571 wc
o E353.2 08/22/11 14:58 1 dc
1.0 SW8260B 08/24/11 06:551 jlr
o 100 SW8260B 08/25/11 05 :16 1 jlr
1.0 SW8260B 08/24/11 06:551 jlr
1.0 SW8260B 08/24/11 06:55 1 jlr
80-120 SW8260B 08/24/1 1 06:551 jlr
70-130 SW8260B 08/24/11 06:551 jlr
S 80-120 SW8260B 08/24/11 06:55 1 jlr
80-120 SW8260B 08/24/11 06:55 1 jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
S -Spike recovery outside of advisory limits.
Page 23 of 51
EN:RGY
LI\BORA-( ORIES
www.energylab.com
An./ytfcs/ [xcII/.ncs Since 1952
., I ~el(toa, 'MT ·B1l~472-0111 • Billings, MT 800-735-448~ • Casper, WY 888-235-0515
IDJ~_' ,"].!!ie,~~!y:!y 8~$-~86-7f15 • Rapid City, SO .88H72-1225 • College Station, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab 10:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C 11080835-009
Client Sample 10: 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: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
41
NO
NO
NO
NO
NO
122
117
135
91.0
Units
mg/l
mg/l
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
S -Spike recovery outside of advisory limits.
Report Date: 09/06/11
Collection Date: 08/16/11 13: 15
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
Qualifier RL QCL Method Analysis Date 1 By
A4500-CI B 08/25/11 13:501 wc
0.1 E353.2 08/22/1114:13 /dc
1.0 SW8260B 08/23/11 20 :29 1 ilr
1.0 SW8260B 08/23/11 20:291 ilr
1.0 SW8260B 08/23/11 20:29 1 ilr
1.0 SW8260B 08/23/11 20:291 ilr
S 80-120 SW8260B 08/23/11 20:29 1 ilr
70-130 SW8260B 08/23/11 20:29 1 ilr
S 80-120 SW8260B 08/23/11 20:29 1 ilr
80-120 SW8260B 08/23/11 20:29 1 jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 12 of 51
EI\ERGY
LABORATORIES
www.energylab.com
Analytfca' Excsl/enes Sincs /952
'1" Helenl!,MT Q17~412-0711 • Billings, MT 800-735-4489 · Casper, WY 888-235-0515 ~~ .\ I.l';'~'\~, ,'" -.,-;', .. ' ~; ~Bittte,.~Y'e&6-~"86-7175 . Rapid City, 5D.888-672-1225 • College5tation, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab 10:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C11080835-014
Client Sample 10: TW4-24
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
967
34
ND
1.7
ND
ND
121
124
124
92.0
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: 09/06/11
Collection Date: 08/17/11 06:25
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
Qualifier Rl QCl Method Analysis Date 1 By
A4500-CI B 08/25/11 14:31 1 wc
D E353.2 08/22/11 14:30 1 dc
1.0 SW8260B 08/24/11 03:261 jlr
1.0 SW8260B 08/24/11 03:26 1 jlr
1.0 SW8260B 08/24/11 03:26 1 jlr
1.0 SW8260B 08/24/11 03:261 jlr
S 80-120 SW8260B 08/24/11 03:26 1 jlr
70-130 SW8260B 08/24/1 1 03 :26 1 jlr
S 80-120 SW8260B 08/24/11 03:26 1 jlr
80-120 SW8260B 08/24/11 03 :26 1 jlr
MCl -Maximum contaminant level.
ND -Not detected at the reporting limit.
S -Spike recovery outside of advisory limits.
Page 17 of 51
EN:RGY
LAB ORATORIES
www.energylab.com
An.IytfClI Excsl/sncs Sines 1952
Helena, MT 877-472-0111 • Billings, MT 800-735-4489 . Casper, WY 888-235-0515
, 9iil~.ttq,;kV)Y 8&.~-&86-7175 • Rapid City, SO 888-&72-1225 • College Station, TX 888-&90-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab 10:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C11080835-002
Client Sample 10: TW4-24R
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
NO
NO
NO
NO
NO
97.0
100
92.0
88.0
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: 09/06/11
Collection Date: 08/16/11 06:40
DateReceived: 08/19/11
Matrix: Aqueous
MCll
QCl Method Analysis Date 1 By
A4500-CI B 08/22111 12:09 1 wc
E353.2 08/22111 13:451 dc
SW8260B 08/25/11 01 :30 1 jlr
SW8260B 08/25/11 01 :30 1 jlr
SW8260B 08/25/11 01 :30 1 jlr
SW8260B 08/25/11 01 :30 1 jlr
SW8260B 08/25/11 01 :30 1 jlr
SW8260B 08/25/11 01 :30 1 jlr
SW8260B 08/25/11 01 :30 1 jlr
SW8260B 08/25/11 01 :30 1 jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 5 of 51
EN:RGY
LABORI\TORIES
www.energylab.com
An.lytlcal £XcallBnes Slnes /952
" '\ .. H~!~ri~,Mt 817-472-071 j -Billings, MY 800-135-4489 . Caspar, WY 888-235-0515
,&C".!ill'~!1e; W(~~~~~8~~ 711~ -. Rapid City,SO 888~672-1225 • Collage Station, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab 10:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C11 080835-01 0
Client Sample 10: TW4-25
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
276
16
NO
NO
ND
NO
117
117
128
90.0
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: 09/06/11
Collection Date: 08/16/11 12:58
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
Qualifier Rl QCl Method Analysis Date 1 By
A4500-CI B 08/25/11 13:531 wc
0 E353.2 08/22/11 14:151 dc
1.0 SW8260B 08/24/11 01 :07 / jlr
1.0 SW8260B 08/24/11 01 :07 / jlr
1.0 SW8260B 08/24/11 01 :07 / jlr
1.0 SW8260B 08/24/11 01 :07 1 jlr
80-120 SW8260B 08/24/11 01 :07 1 jlr
70-130 SW8260B 08/24/11 01 :07 / jlr
S 80-120 SW8260B 08/24/11 01 :07 1 jlr
80-120 SW8260B 08/24/11 01 :07 / jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
S -Spike recovery outside of advisory limits.
Page 13 of 51
EN:RGY
LABORAT ORIES
www.energylab.com
Analytfca' !xcIl/enc' SinclIlB52
; IMf';'" ,;~~eie~a;;'Mra1?-472"0711 . Billings, MT 800-735-4489 · Casper, WY 888"23~-D515
.J!m~tteiY,lY 869".686-7175 • Rapid City, SD88P~672-1225 • ColiegeStation, TX 888-6~D-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab 10:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C11080835-015
Client Sample 10: TW4-26
Analyses
MAJOR IONS
Chloride
Nitrogen, Nitrate+Nitrite as N
VOLATILE ORGANIC COMPOUNDS
Carbon tetrachloride
Chloroform
Chloromethane
Methylene chloride
Surr: 1,2-0ichlorobenzene-d4
Surr: Oibromofluoromethane
Surr: p-Bromofluorobenzene
Surr: Toluene-d8
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result
19
11
NO
2.8
NO
NO
120
125
127
91.0
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: 09/06/11
Collection Date: 08/17/11 06:35
DateReceived: 08/1 9/11
Matrix: Aqueous
MCL!
Qualifier RL QCL Method Analysis Date 1 By
A4500-CI B 08/25/11 14:34 1 wc
0 E353.2 08/22/11 14 :33 1 dc
1.0 SW8260B 08/24/11 04:01 / jlr
1.0 SW8260B 08/24/11 04:01 1 jlr
1.0 SW8260B 08/24/11 04:01 / jlr
1.0 SW8260B 08/24/11 04:01 1 jlr
80-120 SW8260B 08/24/11 04:01 1 jlr
70-130 SW8260B 08/24/11 04 :01 1 jlr
S 80-120 SW8260B 08/24/11 04:01 1 jlr
80-120 SW8260B 08/24/11 04:01 / jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
S -Spike recovery outside of advisory limits.
Page 18 of 51
EI\ERGY
L A B ORATORI ES
lWIW.energylab.com
AnB/ytfcal Excel/ence Since 1952
Heiena,MTQ77-412-0711 • Billings, MT 800-735-4489 · Casper, WY 888-235-0515
.J .M'~~~i ,:WY 86~JB6~ 7175 • Rapi~ City, SO 888~672-1225 • College Station, TX 888-6~O-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab ID:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C11080835-032
Client Sample ID: TW4-60
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
17
NO
NO
NO
NO
NO
110
99.0
112
91.0
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: 09/06/11
Collection Date: 08/17/11 14:30
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
QCl Method AnalysIs Date 1 By
A4500-CI B 08/25/11 16:521 wc
E353.2 08/22111 15 :38 1 dc
SW8260B 08/26/11 13:11 1 jlr
SW8260B 08/26/11 13:11 / jlr
SW8260B 08/26/11 13:11/ jlr
SW8260B 08/26/11 13:11 / jlr
SW8260B 08/26/11 13:11 / jlr
SW8260B 08/26/11 13:11 / jlr
SW8260B 08/26/11 13:11 / jlr
SW8260B 08/26/11 13:11/ jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 35 of 51
EN:RGY
LABORATORIES
www.energylab.com
An.lytfCIII Excsllsncli SInes 1952
II~~'X'.·' -n111 • Billings, MTBOO-735-44B9 • Casper, W'i 888-235-0515
• R~pi~ City, so 888~672-1225 • Collegl),Stat[on, 1)( 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab ID:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C 11080835-013
Client Sample ID: TW4-65
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
45
NO
NO
NO
NO
NO
119
124
130
93.0
Units
mg/l
mg/l
ug/l
ug/l
ug/l
ug/l
%REC
%REC
%REC
%REC
S -Spike recovery outside of advisory limits.
Report Date: 09/06/11
Collection Date: 08/16/11 13: 15
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
Qualifier Rl QCl Method Analysis Date 1 By
1 A4500-CI B 08/25/11 14:23 1 wc
0.1 E353.2 08/22/11 14:23 1 dc
1.0 SW8260B 08/24/11 02:521 jlr
1.0 SW8260B 08/24/11 02:521 jlr
1.0 SW8260B 08/24/11 02:521 jlr
1.0 SW8260B 08/24/11 02:52 1 jlr
80-120 SW8260B 08/24/11 02:52 1 jlr
70-130 SW8260B 08/24/11 02:52 1 jlr
S 80-120 SW8260B 08/24/11 02:521 jlr
80-120 SW8260B 08/24/11 02:521 jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 16 of 51
EN:RGY
LABORATORIES
www.energylab.com
Ans/yflCIII £Xcsl/sncs Slncs 1952
"\ "<, . "Helena,Mr'81'7-472-0711 . Billings, MT 800-735-4489 . Casper, WY 888-235-0515
l'';!iji ~'.&!!i~~~i·WY ~~&7686.7i 7~ • Rapid City, SD.B88~672-1225 • ColiegeStation, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab ID:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C11080835-033
Client Sample ID: 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
62
1.7
NO
8.1
NO
1.3
112
102
116
92.0
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: 09/06/11
Collection Date: 08/17/11 07:05
DateReceived: 08/19/11
Matrix: Aqueous
MCL!
QCL Method Analysis Date 1 By
A4500-CI B 08/25/11 16:56 1 wc
E353.2 08/22/11 15:401 dc
SW8260B 08/26/11 18:231 jlr
SW8260B 08/26/11 18:231 jlr
SW8260B 08/26/11 18:231 jlr
SW8260B 08/26/11 18:231 jlr
SW8260B 08/26/11 18:231 jlr
SW8260B 08/26/11 18:231 jlr
SW8260B 08/26/11 18:231 jlr
SW8260B 08/26/11 18 :23 1 jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 36 of 51
EN:RGY
l.ABORAT ORIES
www.energylab.com
Anslylfcsl £XcII/.nc. Sines '952
". .'. ',Hei~na, ~i"811-472-07t 1 • Billings, MT 800-135-4489 · Casper, WY 888-235-0515
~~"" ;.QW!tte; Wy 866~.~86-m5 • Rapid City, SO 8BB~612-1225 • College Station, TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab ID:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C11080835-034
Client Sample ID: Trip Blank 6092
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
96.0
106
90.0
85.0
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: 09/06/11
Collection Date: 08/15/11
DateReceived: 08/19/11
Matrix: Aqueous
MCl!
QCl Method Analysis Date! By
SW8260B 08/27/11 03:161 jlr
SW8260B 08/27/11 03:161 jlr
SW8260B 08/27/11 03:161 jlr
SW8260B 08/27/11 03:161 jlr
SW8260B 08/27/11 03 :161 jlr
SW8260B 08/27/11 03:161 jlr
SW8260B 08/27/11 03 :161 jlr
SW8260B 08/27/11 03 :161 jlr
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 37 of 51
EI\ERGY
L.AB ORATORIES
1 • Billings, MT 800-135-4489 -Casper, WY 888-235-0515
I City; SD888~672-1225 • College Station, TX 8
www.energylab.com
Analytical Excel/BncSS/nCB Ili52
LABORATORY ANALYTICAL REPORT
Prepared by Casper, WY Branch
Client:
Project:
Lab ID:
Denison Mines USA Corp
3rd Quarter Chloroform 2011
C 11080835-035
Client Sample ID: Temp Blank
Analyses
PHYSICAL PROPERTIES
Temperature
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
Result Units
2.8
Qualifier Rl
Report Date: 09/06/11
Collection Date: 08/18/11
DateReceived: 08/19/11
Matrix: Aqueous
MClI
QCl Method Analysis Date 1 By
E170.1 08/19/11 09 :20 1 kbh
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Page 38 of 51
----.::;==-= EI\ERGY
LAB ORATORIES
www.energylab.~om
An,lyt/I:6/ Exc.IIB11csSliIc. /952
....... -..... -... 1' -Billings. MT 800·735·4489 · Casper. WY 888-235-0515
CitY. SD .888-672"1225 -College Station. TX 888-690-2218
QA/Qe Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp
Project: 3rd Quarter Chloroform 2011
Analyte Count Result Units
Method: A4500-CI B
Sample 10: MBLK9-11/08/22
Chloride
Sample 10: C11080835-008AMS
Chloride
Sample 10: C11080835-008AMSO
Chloride
Sample 10: LCS35-11/08/22
Chloride
Method: A4500-CI B
Sample 10: MBLK9-110825
Chloride
Sample 10: C11080835-009AMS
Chloride
Sample 10: C11080835-009AMSO
Chloride
Sample 10: C11080835-028AMS
Chloride
Sample 10: C11080835-028AMSO
Chloride
Sample 10: LCS35-110825
Chloride
Qualifiers:
RL -Analyte reporting limit.
Method Blank
ND mg/L
Sample Matrix Spike
68.3 mg/L
Sample Matrix Spike Duplicate
68.3 mg/L
Laboratory Control Sample
3560 mg/L
Method Blank
ND mg/L
Sample Matrix Spike
221 mg/L
Sample Matrix Spike Duplicate
221 mg/L
Sample Matrix Spike
180 mg/L
Sample Matrix Spike Duplicate
175 mg/L
Laboratory Control Sample
3520 mg/L
Report Date: 09/06/11
Work Order: C11080835
RL %REC Low Limit High Limit RPO RPOLimit Qual
Batch: 11/08/22-CL-TTR-W
Run: TITRATION_110822A 08/22/11 11 :10
0.5
Run: TITRATION_11 0822A 08/22/11 12:30
1.0 100 90 110
Run: TITRATION 110822A 08/22/11 12:32
1.0 100 90 110 0.0 10
Run: TITRATION_11 0822A 08/22/11 12 :35
1.0 100 90 110
Batch: 110825-CL-TTR-W
Run: TITRATION_11 0825A 08/25/11 13:44
0.4
Run: TITRATION_11 0825A 08/25/11 15:30
1.0 101 90 110
Run: TITRATION_11 0825A 08/25/11 15:33
1.0 101 90 110 0.0 10
Run: TITRATION_11 0825A 08/25/11 16 :32
1.0 103 90 110
Run: TITRATION_11 0825A 08/25/11 16:34
1.0 99 90 110 2.6 10
Run: TITRATION 110825A 08/25/11 16:39 -
1.0 99 90 110
ND -Not detected at the reporting limit.
Page 39 of 51
EN:RGY
LABORATORIES
www.energylab.~om
Anllyt/CII/ Exes//snes Sine. 1952
IIUU··/3~1·44I,1S . Casper,WY 888·235·0515
225 • ColiegeSlalion, TX 888·690·2218
QA/Qe Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp Report Date: 09/06/11
Project: 3rd Quarter Chloroform 2011 Work Order: C11080835
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual
Method: E353.2 Batch: R149648
Sample 10: MBLK·1 Method Blank Run: TECHNICON_110822A 08/22/11 12:18
Nitrogen, Nitrate+Nitrite as N ND mg/L 0.06
Sample 10: LCS·2 Laboratory Control Sample Run: TECHNICON_11 0822A 08/22/11 12:20
Nitrogen, Nitrate+Nitrite as N 2.49 mg/L 0.10 100 90 110
Sample 10: LFB·3 Laboratory Fortified Blank Run: TECHNICON_11 0822A 08/22/11 12 :23
Nitrogen, Nitrate+Nitrite as N 1.99 mg/L 0.10 102 90 110
Sample 10: C11080813·009EMS Sample Matrix Spike Run: TECHNICON_110822A 08/22/11 12:50
Nitrogen, Nitrate+Nitrite as N 2.03 mg/L 0.10 104 90 110
Sample 10: C11080813·009EMSO Sample Matrix Spike Duplicate Run: TECHNICON_11 0822A 08/22/11 12:53
Nitrogen, Nitrate+Nitrite as N 2.06 mg/L 0.10 105 90 110 1.5 10
Sample 10: C11080821·002FMS Sample Matrix Spike Run: TECHNICON_11 0822A 08/22/11 13:25
Nitrogen, Nitrate+Nitrite as N 2.10 mg/L 0.10 107 90 110
Sample 10: C11080821·002FMSO Sample Matrix Spike Duplicate Run: TECHNICON_11 0822A 08/22/11 13:28
Nitrogen, Nitrate+Nitrite as N 2.18 mg/L 0.10 111 90 110 3.7 10 S
Qualifiers:
RL -Analyte reporting limit. ND -Not detected at the reporting limit.
S -Spike recovery outside of advisory limits.
Page 40 of 51
EI\ERGY
LAB ORATORIES
www.energylab.com
An.lylfc.l be,/I,nc, Sinel 1952
Heiena; Mf 877-412-0111 • Billings, MT 800-135-4489 · Casper, WY 888-235-0515
'l ,.~iI.ie~q,·WV :a66-686~1175 • Rapid City, SD 888-612-1225 • College Station, IX 888-690-2218
QA/Qe Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp Report Date: 09/06/11
Project: 3rd Quarter Chloroform 2011 Work Order: C11080835
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual
Method: SW8260B Batch: R149732
Sample 10: 23-Aug-11_LCS_9 8 Laboratory Control Sample Run : GCMS2_11 0823A 08/23/11 14:41
Carbon tetrachloride 9.0 ug/L 1.0 90 70 130
Chloroform 8.9 ug/L 1.0 89 70 130
Chloromethane 8.9 ug/L 1.0 89 70 130
Methylene chloride 8.9 ug/L 1.0 89 70 130
Surr: 1,2-Dichlorobenzene-d4 1.0 96 80 120
Surr: Dibromofluoromethane 1.0 96 70 130
Surr: p-Bromofluorobenzene 1.0 111 80 130
Surr: Toluene-d8 1.0 93 80 120
Sample 10: 23-Aug-11_MBLK_11 8 Method Blank Run: GCMS2_11 0823A 08/23/11 15 :51
Carbon tetrachloride ND ug/L 1.0
Chloroform ND ug/L 1.0
Chloromethane ND ug/L 1.0
Methylene chloride ND ug/L 1.0
Surr: 1,2-Dichlorobenzene-d4 1.0 106 80 120
Surr: Dibromofluoromethane 1.0 95 70 130
Surr: p-Bromofluorobenzene 1.0 120 80 120
Surr: Toluene-d8 1.0 89 80 120
Sample 10: C11080835-001CMS 8 Sample Matrix Spike Run: GCMS2_11 0823A 08/23/11 22:13
Carbon tetrachloride 200 ug/L 10 102 70 130
Chloroform 200 ug/L 10 102 70 130
Chloromethane 180 ug/L 10 91 70 130
Methylene chloride 200 ug/L 10 98 70 130
Surr: 1,2-Dichlorobenzene-d4 1.0 92 80 120
Surr: Dibromofluoromethane 1.0 111 70 130
Surr: p-Bromofluorobenzene 1.0 107 80 120
Surr: Toluene-d8 1.0 92 80 120
Sample 10: C11080835-001CMSO 8 Sample Matrix Spike Duplicate Run: GCMS2_11 0823A 08/23/11 22:48
Carbon tetrachloride 190 ug/L 10 97 70 130 5.6 20
Chloroform 200 ug/L 10 98 70 130 4.8 20
Chloromethane 190 ug/L 10 94 70 130 2.6 20
Methylene chloride 190 ug/L 10 96 70 130 2.5 20
Surr: 1,2-Dichlorobenzene-d4 1.0 94 80 120 0.0 10
Surr: Dibromofluoromethane 1.0 105 70 130 0.0 10
Surr: p-Bromofluorobenzene 1.0 106 80 120 0.0 10
Surr: Toluene-d8 1.0 91 80 120 0.0 10
Qualifiers:
RL -Analyte reporting limit. ND -Not detected at the reporting limit.
Page 41 of 51
www.energylab.com
An.lytful ExCSl/lnCl Sinc1I1952
,j.:!,,,.. I "' • .' , -', , ' .. • , i;Hel~~~; ~T 871-472-0711 • Billings, MT 800-735-4489 · Casper, WY 888-235-0515
, j f~~e,'wYB66'~$86-~J 75 • Rapid City, SO 888-672-1225 • College Station, TX 888-6~D-221 8 EN:RGY
LABORAT ORIES
QA/Qe Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp Report Date: 09/06/11
Project: 3rd Quarter Chloroform 2011 Work Order: C11080835
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual
Method: SW8260B Batch: R149789
Sample 10: 082411_LCS_3 8 Laboratory Control Sample Run: SATURNCA_11 0824B 08/24/11 11 :31
Carbon tetrachloride 10 ug/L 1.0 104 70 130
Chloroform 11 ug/L 1.0 106 70 130
Chloromethane 10 ug/L 1.0 101 70 130
Methylene chloride 9.9 ug/L 1.0 99 70 130
Surr: 1,2-Dichlorobenzene-d4 1.0 100 80 120
Surr: Dibromofluoromethane 1.0 98 70 130
Surr: p-Bromofluorobenzene 1.0 95 80 130
Surr: Toluene-d8 1.0 86 80 120
Sample 10: 082411_MBLK_5 8 Method Blank Run: SATURNCA_11 0824B 08/24/11 12:45
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 96 80 120
Surr: Dibromofluoromethane 1.0 100 70 130
Surr: p-Bromofluorobenzene 1.0 90 80 120
Surr: Toluene-d8 1.0 88 80 120
Sample 10: C11080571-011GMS 8 Sample Matrix Spike Run: SATURNCA_ 110824B 08/24/11 19 :26
Carbon tetrachloride 230 ug/L 10 116 70 130
Chloroform 230 ug/L 10 116 70 130
Chloromethane 220 ug/L 10 108 70 130
Methylene chloride 230 ug/L 10 114 70 130
Surr: 1,2-Dichlorobenzene-d4 1.0 103 80 120
Surr: Dibromofluoromethane 1.0 104 70 130
Surr: p-Bromofluorobenzene 1.0 104 80 120
Surr: Toluene-d8 1.0 95 80 120
Sample 10: C11080571-011GMSO 8 Sample Matrix Spike Duplicate Run : SATURNCA_ 110824B 08/24/11 20:02
Carbon tetrachloride 240 ug/L 10 118 70 130 1.4 20
Chloroform 240 ug/L 10 118 70 130 2.1 20
Chloromethane 230 ug/L 10 113 70 130 4.7 20
Methylene chloride 230 ug/L 10 116 70 130 2.4 20
Surr: 1,2-Dichlorobenzene-d4 1.0 100 80 120 0.0 10
Surr: Dibromofluoromethane 1.0 102 70 130 0.0 10
Surr: p-Bromofluorobenzene 1.0 100 80 120 0.0 10
Surr: Toluene-d8 1.0 92 80 120 0.0 10
Qualifiers:
RL -Analyte reporting limit. NO -Not detected at the reporting limit.
Page 42 of 51
EN:RGY
LAB ORAT ORIES
www.energylab.com
An,lytlClI £XCll/snC. SIne, 1952
ii" :«~I~"a .. MT &17-472-0711 • Billings, MT 800-735-4489 . Casper, WY 888-23$-0515 IU •. .\,', , ,.' . .,' .
11, Jlilletle, Wv q~6:686-717~ • Rapid City, SD,888-672-1225 • College Station, TX 888-690-2218
QA/QC Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp Report Date: 09/06/11
Project: 3rd Quarter Chloroform 2011 Work Order: C11080835
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual
Method: SW8260B Batch: R149846
Sample 10: 082511_LCS_3 8 Laboratory Control Sample Run: SATURNCA_110825B 08/25/11 13:17
Carbon tetrachloride 11 ug/L 1.0 106 70 130
Chloroform 11 ug/L 1.0 112 70 130
Chloromethane 9.0 ug/L 1.0 90 70 130
Methylene chloride 11 ug/L 1.0 112 70 130
Surr: 1,2-Dichlorobenzene-d4 1.0 102 80 120
Surr: Dibromofluoromethane 1.0 105 70 130
Surr: p-Bromofluorobenzene 1.0 97 80 130
Surr: Toluene-d8 1.0 91 80 120
Sample 10: 082511_MBLK_5 8 Method Blank Run: SATURNCA_ 110825B 08/25/11 14:32
Carbon tetrachloride ND ug/L 1.0
Chloroform ND ug/L 1.0
Chloromethane ND ug/L 1.0
Methylene chloride ND ug/L 1.0
Surr: 1,2-Dichlorobenzene-d4 1.0 102 80 120
Surr: Dibromofluoromethane 1.0 101 70 130
Surr: p-Bromofluorobenzene 1.0 93 80 120
Surr: Toluene-d8 1.0 90 80 120
Sample 10: C11080813-010JMS 8 Sample Matrix Spike Run: SATURNCA_ 110825B 08/25/11 21 :17
Carbon tetrachloride 240 ug/L 10 121 70 130
Chloroform 250 ug/L 10 127 70 130
Chloromethane 230 ug/L 10 117 70 130
Methylene chloride 240 ug/L 10 121 70 130
Surr: 1,2-Dichlorobenzene-d4 1.0 102 80 120
Surr: Dibromofluoromethane 1.0 110 70 130
Surr: p-Bromofluorobenzene 1.0 103 80 120
Surr: Toluene-d8 1.0 91 80 120
Sample 10: C11080813-010JMSO 8 Sample Matrix Spike Duplicate Run : SATURNCA_11 0825B 08/25/11 21 :53
Carbon tetrachloride 250 ug/L 10 123 70 130 2.0 20
Chloroform 250 ug/L 10 124 70 130 2.2 20
Chloromethane 240 ug/L 10 119 70 130 1.7 20
Methylene chloride 250 ug/L 10 124 70 130 2.3 20
Surr: 1,2-Dichlorobenzene-d4 1.0 100 80 120 0.0 10
Surr: Dibromofluoromethane 1.0 110 70 130 0.0 10
Surr: p-Bromofluorobenzene 1.0 100 80 120 0.0 10
Surr: Toluene-d8 1.0 88 80 120 0.0 10
Qualifiers:
RL -Analyte reporting limit. ND -Not detected at the reporting limit.
Page 43 of 51
EI\ERGY
LAB ORAT ORIES
wWw.energylab.~om
An'~1 Exeel/ene. Sine. 1852
.~ , ;Ilef~na; MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515
J;iII~iie,.WY 8&6-686-7175 • Rapid City, 51) 888-672-1225 • College Station, TX 888-690-2218
QA/QC Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp Report Date: 09/06/11
Project: 3rd Quarter Chloroform 2011 Work Order: C11080835
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual
Method: SW8260B Batch: R149885
Sample 10: 26-Aug-11_LCS_3 8 Laboratory Control Sample Run: GCMS2_110826A 08/26/11 11 :27
Carbon tetrachloride 10 ug/L 1.0 103 70 130
Chloroform 10 ug/L 1.0 100 70 130
Chloromethane 9.8 ug/L 1.0 98 70 130
Methylene chloride 11 ug/L 1.0 106 70 130
Surr: 1,2-0ichlorobenzene-d4 1.0 93 80 120
Surr: Oibromofluoromethane 1.0 101 70 130
Surr: p-Bromofluorobenzene 1.0 102 80 130
Surr: Toluene-d8 1.0 92 80 120
Sample 10: 26-Aug-11_MBLK_5 8 Method Blank Run: GCMS2_11 0826A 08/26/11 12:36
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 1.0 104 80 120
Surr: Dibromofluoromethane 1.0 94 70 130
Surr: p-Bromofluorobenzene 1.0 109 80 120
Surr: Toluene-d8 1.0 90 80 120
Sample 10: C11080835-028CMS 8 Sample Matrix Spike Run: GCMS2_110826A 08/26/11 18:57
Carbon tetrachloride 1900 ug/L 100 94 70 130
Chloroform 2800 ug/L 100 102 70 130
Chloromethane 1800 ug/L 100 91 70 130
Methylene chloride 2200 ug/L 100 110 70 130
Surr: 1,2-Dichlorobenzene-d4 1.0 92 80 120
Surr: Oibromofluoromethane 1.0 111 70 130
Surr: p-Bromofluorobenzene 1.0 96 80 120
Surr: Toluene-d8 1.0 95 80 120
Sample 10: C11080835-028CMSO 8 Sample Matrix Spike Duplicate Run: GCMS2_ 110826A 08/26/11 19:32
Carbon tetrachloride 1700 ug/L 100 84 70 130 11 20
Chloroform 2500 ug/L 100 87 70 130 11 20
Chloromethane 1800 ug/L 100 88 70 130 3.1 20
Methylene chloride 1900 ug/L 100 95 70 130 14 20
Surr: 1,2-Dichlorobenzene-d4 1.0 92 80 120 0.0 10
Surr: Dibromofluoromethane 1.0 98 70 130 0.0 10
Surr: p-Bromofluorobenzene 1.0 94 80 120 0.0 10
Surr: Toluene-d8 1.0 94 80 120 0.0 10
Qualifiers:
RL -Analyte reporting limit. NO -Not detected at the reporting limit.
Page 44 of 51
EI\ERGY
LAB ORATORIE S
www.energylab.~om
An./ytlclf ExCIl/snC' Sine, IgS2
. ' . .' ,Heiima,.MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515
;.1 ,!iiIlMkwv ·~B&768~-7115' .. Rap'ld City, SD.8Q8-672-1225 .. College Station, IX 888-690-2218
QA/Qe Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp Report Date: 09/06/11
Project: 3rd Quarter Chloroform 2011 Work Order: C11080835
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimlt Qual
Method: SW8260B Batch: R149888
Sample 10: 082611_LCS_ 4 8 Laboratory Control Sample Run: SATURNCA_110826C 08/26/11 12:10
Carbon tetrachloride 9.4 ug/L 1.0 94 70 130
Chloroform 9.0 ug/L 1.0 90 70 130
Chloromethane 8.3 ug/L 1.0 83 70 130
Methylene chloride 8.4 ug/L 1.0 84 70 130
Surr: 1,2-Dichlorobenzene-d4 1.0 97 80 120
Surr: Dibromofluoromethane 1.0 94 70 130
Surr: p-Bromofluorobenzene 1.0 98 80 130
Surr: Toluene-d8 1.0 95 80 120
Sample 10: 082611_MBLK_6 8 Method Blank Run: SATURNCA_110826C 08/26/11 13:22
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 99 80 120
Surr: Dibromofluoromethane 1.0 101 70 130
Surr: p-Bromofluorobenzene 1.0 92 80 120
Surr: Toluene-d8 1.0 86 80 120
Sample 10: C11080835-027CMS 8 Sample Matrix Spike Run: SATURNCA_11 0826C 08/27/11 06:18
Carbon tetrachloride 2100 ug/L 100 104 70 130
Chloroform 3700 ug/L 100 112 70 130
Chloromethane 1800 ug/L 100 90 70 130
Methylene chloride 2000 ug/L 100 100 70 130
Surr: 1,2-Dichlorobenzene-d4 1.0 96 80 120
Surr: Dibromofluoromethane 1.0 103 70 130
Surr: p-Bromofluorobenzene 1.0 93 80 120
Surr: Toluene-d8 1.0 87 80 120
Sample 10: C11080835-027CMSO 8 Sample Matrix Spike Duplicate Run: SATURNCA_ 110826C 08/27/11 06 :54
Carbon tetrachloride 2000 ug/L 100 102 70 130 2.3 20
Chloroform 3500 ug/L 100 100 70 130 6.5 20
Chloromethane 1700 ug/L 100 85 70 130 5.5 20
Methylene chloride 1900 ug/L 100 94 70 130 7.0 20
Surr: 1,2-Dichlorobenzene-d4 1.0 98 80 120 0.0 10
Surr: Dibromofluoromethane 1.0 102 70 130 0.0 10
Surr: p-Bromofluorobenzene 1.0 93 80 120 0.0 10
Surr: Toluene-d8 1.0 86 80 120 0.0 10
Qualifiers:
RL -Analyte reporting limit. NO -Not detected at the reporting limit.
Page 45 of 51
EN:RGY
LAB ORATORIES
www.energylab.com
An.lytlllll ExcIl/lnc, Slnel 7152
<.We~a, M,TB77-4i2-Q711 • Billings, MT 800-735-4489 · Casper, WY 888-235-0515 ~~ __ ~1),1ette,iWXJi6-$B6-7115 . Rapid City, SD 888-672-1225 . ColiegeStalion, TX 888-690-2218
QA/Qe Summary Report
Prepared by Casper, WY Branch
Client: Denison Mines USA Corp Report Date: 09/06/11
Project: 3rd Quarter Chloroform 2011 Work Order: C11080835
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual
Method: SWB260B Batch: R149911
Sample 10: OB2711_LCS_ 4 7 Laboratory Control Sample Run: SATURNCA_11 0827C 08/27/11 13:57
Carbon tetrachloride 11 ug/L 1.0 105 70 130
Chloromethane 8.9 ug/L 1.0 89 70 130
Methylene chloride 9.6 ug/L 1.0 96 70 130
Surr: 1,2-Dichlorobenzene-d4 1.0 101 80 120
Surr: Dibromofluoromethane 1.0 98 70 130
Surr: p-Bromofluorobenzene 1.0 101 80 130
Surr: Toluene-d8 1.0 93 80 120
Sample 10: OB2711_MBLK_6 7 Method Blank Run: SATURNCA_11 0827C 08/27/11 15 :09
Carbon tetrachloride 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 98 80 120
Surr: Dibromofluoromethane 1.0 99 70 130
Surr: p-Bromofluorobenzene 1.0 94 80 120
Surr: Toluene-d8 1.0 90 80 120
Sample 10: C110BOB35-031CMS 7 Sample Matrix Spike Run: SATURNCA_ 110827C 08/27/1121:12
Carbon tetrachloride 22000 ug/L 1000 108 70 130
Chloromethane 18000 ug/L 1000 90 70 130
Methylene chloride 20000 ug/L 1000 102 70 130
Surr: 1,2-Dichlorobenzene-d4 1.0 94 80 120
Surr: Dibromofluoromethane 1.0 100 70 130
Surr: p-Bromofluorobenzene 1.0 96 80 120
Surr: Toluene-d8 1.0 89 80 120
Sample 10: C110BOB35-031CMSO 7 Sample Matrix Spike Duplicate Run: SATURNCA_ 110827C 08/27/11 21 :48
Carbon tetrachloride 21000 ug/L 1000 105 70 130 2.3 20
Chloromethane 17000 ug/L 1000 87 70 130 3.6 20
Methylene chloride 19000 ug/L 1000 97 70 130 5.2 20
Surr: 1,2-Dichlorobenzene-d4 1.0 100 80 120 0.0 10
Surr: Dibromofluoromethane 1.0 97 70 130 0.0 10
Surr: p-Bromofluorobenzene 1.0 98 80 120 0.0 10
Surr: T oluene-d8 1.0 90 80 120 0.0 10
Qualifiers:
RL -Analyte reporting limit. NO -Not detected at the reporting limit.
Page 46 of 51
:Helena, M(877.472-p711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 :'. • :' •. j" •
.• ~1II~~8, WY'8~67686~m5 · Rapid City, SO.888-672-1225 • College Station, 1X 888-6~0-221 8
www.energylab.com
Anllytftml £Xcsl/BllCI Sines 1852 EN:RGY
LABOF~Al Or~1 ES
Workorder Receipt Checklist
Denison Mines USA Corp
111111111111111111111111111111111111111111111111111111I
C11080835
Login completed by: Debra Williams
Reviewed by: BL2000\kschroeder
Reviewed Date: 8/19/2011
Shipping container/cooler in good condition?
Custody seals intact on shipping container/cooler?
Custody seals intact on sample bottles?
Chain of custody present?
Chain of custody signed when relinquished and received?
Chain of custody agrees with sample labels?
Samples in proper container/bottle?
Sample containers intact?
Sufficient sample volume for indicated test?
All samples received within holding time?
ContainerfTemp Blank temperature:
Water -VOA vials have zero headspace?
Water -pH acceptable upon receipt?
Contact and Corrective Action Comments :
None
Yes 0
Yes 0
Yes D
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
2.8"(; On Ice
Yes 0
Yes 0
Date Received: 8/19/2011
Received by: kg
Carrier FedEx
name:
No 0
No 0
No 0
No 0
No 0
NoD
No 0
No 0
No 0
No 0
No 0
No 0
Not Present 0
Not Present 0
Not Present 0
No VOA vials submitted 0
Not Applicable 0
Page 47 of 51
Chain of Custody and Analytical Request Record Page-.Lof~ LA BORA TORIES PLEASE PRINT (Provide as much information as possible.)
Company Name: Project Name, PWS, Permit, Etc. Sample Origin EPNState Compliance: D .u'I;~C(\ Mh,~ :~tcA Qu.o.rW c. h lo(ot¢rl"'l ;to It State: lAT Yes I)J No 0
Report Mail Address: p Contact Name: PhonefFax: Email: Sampler: (Please Print) o BO)< goq ~nner ij~iI;JAtt ~j Q,n a; I"IJ;.\ \AT ~45\1 R,,\o.t\ Po,J 1'¥Ie.(" \.13~ ('78 .:o.:l..\
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$: RUSH sample submittal FE-Ext' ° ID ~Otl)= t=' R for charges and Cooler lO(s): ~
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SAMPLE IDENTIFICATION Collection Collection MATRIX a Signature @ N (Name, Location, Interval, etc.) Date TIme Match
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qt~ ;:r.a ure:
Sample Disposal: Return to Client: Lab Disposal: f, ',:j C.Sf"z "1-)ti!{~ Lf .:;......L.-
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.
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.. Chain of Custody and Analytical Request Record Page~of --.!:L PLEASE PRINT (Provide as much information as possible.)
Company Name: M~f\e.~ Project Name, PWS, Permit, Etc. Sample Origin EPA/State Compliance:
De.tlI~C(\ :r~ ~U!>.J1-d"" Chi oratolrYl .:t~ t, State: \.AT Yes ~ No 0
Report Mail Address: Po Bel( 80'1 Contact Name: Phone/Fax: Email: Sampler: (Please Print)
B L"na 'I tI G\ v.T gt-!'S\! Rt\A.r\ PaJrnu-11~ b78~1 '1:'.nner Jto}/,d"t'
Invoice Address~ Invoice Contact & Phone: Purchase Order: QuotelBottle Order: ~O\t\'\C ..s"m~
Special Report/Formats: ~&[1 W@O® [M@:®QD~@ .. Contact ELI prior to ffdbY: ~ ~ RUSH sample submittal -6t 0 :v ~om= ~ for charges and Cooler 10(5):
[g III ;g 01 :v l-l1 0 « R scheduling -See [li~J ._> 0 >-Ci5 W t:. Instruction Page Dow o EDO/EDT(Electronic Data) ~U)U) ro s: r-c: Us en I o~= gj OJ ct "0 Receipt Temp D POTWIWWTP Format: u 0 o.~ 0 c Comments: .... <::U)liill~ :J U ,-"8 o State: o LEVEL IV o ... c -..) ~ e °c ..... Qj oS J::-1:: ca ~~l~~ ~ t: o Other: o NELAC ~ ... On Ice: ~N « :J
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MUST be
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In certain circumstances, samples submitted to Energy Laboratories, Inc. may be subcontracted to other certrried 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.
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IIIIiII Chain of Custody and Analytical Request Record Page~of~
PLEASE PRINT (Provide as much information as possible.)
Company Name: Project Name, PWS, Permit, Etc. Sample Origin EPA/State Compliance:
DenlsO(\ "A',(\~S ?{~ Qv...o..'~(, Ghloro,fciM ~Oll State: ucr Yes Il:l No 0
Report Mail Address: fO Bo'')( gD~ Contact Name: Phone/Fax: Email: Sampler: (Please Print)
BIW\J..~1\\ \.C\ )5'1t)l\ "R ~ AA 1',:\.\ 1\"1 ~(" l1~!) b7~ .:z;Q\ ~nner ~cj/;J",*"
Invoice Address: Invoice Contact & Phone: Purchase Order: Quote/Bottle Order:
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Special Report/Formats: &[Wl\[1 Yi'@O@ ~@:®@~m@) • Contact ELI prior to ~nipped by: :;: RUSH sample submittal LE-£.o 0 Q; "'0 <f)oC. ~ for charges and Cooler !D(s}: I ~co;gOI Q; ...c'l 0 « R scheduling -See C!·~J ._> 0 >.~ W t:.. Instruction Page Dow D EDD/EOT(Electronic Data) j!lCl,)CI,) ctI:;: C ~<f) r I 0:;:= ~ OJ '0 Receipt Temp D POTWMlWTP a-U e Comments: Format: u<c~I.Q~ C'{ :J U ;)/j '0 .... COI c: « 0 °C D State: o LEVEL IV '-Gi$ ~.~ <J I-m ~ o..ctI.QD l-e o Other: o NELAC ~Iro ' ... On Ice: (!)N « :J
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~ S H Intact ~N 0 CJ)
SAMPLE IDENTIFICATION Collection Collection MATRIX Signature G H (Name, Location, Interval, etc.) Date Time Match
1
tWI-\ -lO ~/11111 Oil..\S -S ... W "i. ~
2 T'Ni..\-2..\ ~/\i/1l CiS!) ~-W '{. I~
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Sample Disposal: Return to Client: Lab Disposal: Jt:5 ~.5x_ '(-i~-I( x.~
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.
IIlIIII Chain of Custody and Analytical Request Record Pagel of$-
PLEASE PRINT (Provide as much information as possible.)
Company Name: , M:t\6 Project Name, PWS, Permit, Etc. Sample Origin EPA/State Compliance: D~nl~on 1:rd. Qv .. c~rh:r Chl or~f'()r1t'l G..Ol\ State: Yes ~ No 0
Report Mail Address: PC) Bey.. g'D<\ Contact Name: Phone/Fax: Email: Sampler: (Please Print)
f.:> "tC"'(It'\"\. \,\\ 8't45)1 R .... "\~1'l 1/ oJ yYl-er L.t35 bif1 ~l -re::nner ~o 11 ,-J4Y
Invoice Address: -Invoice Contact & Phone: Purchase Order: Quote/Bottle Order: .
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SAMPLE IDENTIFICATION Collection Collection MATRIX Signature G)N (Name, Location, Interval. etc.) Date Time Match
1
"f vJ 1..\ -;;to g/r111~ \;t4D ~-w ). ~
2 Tw~-be gIn/a \~\~O S-w '" ~
3 IW i..\-70 g/l1/11 0705 l;-W X g
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4 trio Bto..nk. roof;! 81\~/t\ ~
5 1 ~
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9 I~
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Custody --r;~S:;'b"~\tr:!tl~ 8';'K/:;~~l 1130 :::JaJl :~g:tu1t,~I.;/--A Received by (print): DatelTime: Signature:
Record Relinquished by (print):...,J DatefTime: Signatu\'e: J Received by (print): Date/Time: Signature:
MUST be
Signed r<;JJ'¥ved Dy LaD!'ralOg: Uatel~lme: lIdo %;::e:LL Sample Disposal: Return to Client: LabDi~sal: r.:c. 6·5 ( ~_If~ II -
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 sutH:ontract 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.
www.energylab.com E~RGY
LAB ORATORIES An.lytfcsl £XcII/Inc. Slnc. 11i52
'~'~,,,,',; ":,~ei~na,,MT 817-472-0711 • Billings, MT 800-735-4489 . Casper, WY 888-235-0515
:Grll~~e/WY:8l6~$8~·m5 • Rap.id Ci~, SO 888-672-1225 • College,Station, TX 888-690-2218
September 06,2011
Denison Mines USA Corp
6425 S Hwy 191
Blanding, UT 84511
Workorder No.: C11080835
ANAL VTICAL SUMMARY REPORT
Quote 10: C2975 -Chloroform Sampling
Project Name: 3rd Quarter Chloroform 2011
Energy Laboratories, Inc. Casper WY received the following 35 samples for Denison Mines USA Corp on 8/19/2011 for
analysis.
Sample 10 Client Sample 10 Collect Date Receive Date Matrix Test
C11080835-001 TW4-3R 08/15/11 6:45 08/19/11 Aqueous Chloride
Nitrogen, Nitrate + Nitrite
SW8260B VOCs, Standard List
C 11080835-002 TW4-24R 08/16/11 6:40 08/19/11 Aqueous Same As Above
C11080835-003 TW4-7R 08/17/11 8:49 08/19/11 Aqueous Same As Above
C11080835-004 TW4-3 08/16/11 14:40 08/19/11 Aqueous Same As Above
C11080835-005 TW4-12 08/16/11 13 :45 08/19/11 Aqueous Same As Above
C11080835-006 TW4-13 08/16/11 13 :51 08/19/11 Aqueous Same As Above
C11080835-007 TW4-14 08/16/11 14:03 08/19/11 Aqueous Same As Above
C11080835-008 MW-32 08/16/11 12:55 08/19/11 Aqueous Same As Above
C11080835-009 TW4-23 08/16/11 13:15 08/19/11 Aqueous Same As Above
C11 080835-01 0 TW4-25 08/16/11 12:58 08/19/11 Aqueous Same As Above
C11080835-011 TW4-8 08/16/11 14:50 08/19/11 Aqueous Same As Above
C11080835-012 TW4-9 08/16/11 14:21 08/19/11 Aqueous Same As Above
C11080835-013 TW4-65 08/16/11 13:15 08/19/11 Aqueous Same As Above
C11080835-014 TW4-24 08/17/11 6:25 08/19/11 Aqueous Same As Above
C 11 080835-01 5 TW4-26 08/17/11 6:35 08/19/11 Aqueous Same As Above
C11080835-016 TW4-5 08/17/11 6:45 08/19/11 Aqueous Same As Above
C 11 080835-01 7 TW4-6 08/17/11 6:55 08/19/11 Aqueous Same As Above
C 11 080835-01 8 TW4-16 08/17/11 7:05 08/19/11 Aqueous Same As Above
C 11 080835-01 9 TW4-18 08/17/117:21 08/19/11 Aqueous Same As Above
C11080835-020 TW4-22 08/17/11 7:35 08/19/11 Aqueous Same As Above
C11080835-021 TW4-10 08/17/11 7:45 08/19/11 Aqueous Same As Above
C11080835-022 TW4-21 08/17/11 7:55 08/19/11 Aqueous Same As Above
C11080835-023 TW4-11 08/17/11 8:07 08/19/11 Aqueous Same As Above
C11080835-024 TW4-7 08/18/11 6 :36 08/19/11 Aqueous Same As Above
C11080835-025 TW4-1 08/18/11 6:47 08/19/11 Aqueous Same As Above
C11080835-026 MW-4 08/17/11 13:05 08/19/11 Aqueous Same As Above
C11080835-027 TW4-4 08/17/11 13:1508/19/11 Aqueous Same As Above
Page 1 of 51
EN:RGY
LABORATO,~I ES
C11080835-028
C11080835-029
C11080835-030
C11080835-031
C11080835-032
C11080835-033
C11080835-034
C11080835-035
wWw.energylab.com
An.lytfcal £XciiI/Inc, Slncs Ig52
. 'L,> tHel~na/Mt8j7-412-0711 • Billings, MT 800-735-4489 . Casper, W'f 888-235-0515 AiIlBtl~;Wt ~8$~\G.86'-7J J~'. Rapid City, SO ,886-672-1225 • College Station, lX 888·6~O-2218
ANALYTICAL SUMMARY REPORT
TW4-15 08/17/11 12 :50 08/19/11 Aqueous Same As Above
TW4-2 08/17/11 6:57 08/19/11 Aqueous Same As Above
TW4-19 08/17/11 14:00 08/19/11 Aqueous Same As Above
TW4-20 08/17/11 12:40 08/19/11 Aqueous Same As Above
TW4-60 08/17/11 14 :30 08/19/11 Aqueous Same As Above
TW4-70 08/17/11 7:05 08/19/11 Aqueous Same As Above
Trip Blank 6092 08/15/11 0:00 08/19/11 Aqueous SW8260B VOCs, Standard List
Temp Blank 08/18/11 0:00 08/1 9/11 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. All samples are reported on an as received
basis unless otherwise indicated. Samples corrected for dry weight indicate units that have -dry appended.
If you have any questions regarding these test results, please call.
Report Approved By:
cS¥~ D LJcJ.~
Reporting Supervisor
Digitally signed by
Stephanie Waldrop
Date: 2011 .09.06 11 :23:35 ·06:00
Page 2 of 51
www.energyJab.com
Ans/ytfClI ExCill/lncs SlnCil 1952
'hei~na .. MJB1J.472·0711 • Billings, MT 800·735-4489 · Casper, WY 88~·23~-D515
Gillette WY86S-'686-7fi5 • Raid Ci ,SO 888-672-1225 • Colle e station IX 888-690-2218
CLIENT: Denison Mines USA Corp
Project: 3rd Quarter Chloroform 2011 Report Date: 09/06/11
Sample Delivery Group: C11080835 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.
SOIL/SOLID 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 3 of 51
Tab I
Quality Assurance and Data Validation Tables
I-I: Field QA/QC Evaluation
2x Casing Volume 2x Casing Volume
Location Volume Pumped Volume Pumped Volume Check Conductivity RPD
Continuously
MW-4 NA pumped well --2066 NIA
TW4-1 59.54 88.00 60 88 OK 2248 2247 0.04
TW4-2 68.58 77.00 69 77 Pumped Dry 3068 NIA
TW4-3 119.68 99.00 120 99 Pumped Dry 1937 NIA
Continuously
TW4-4 NA pumped well --2497 NIA
TW4-5 83.50 99.00 84 99 OK 1612 1603 0.56
TW4-6 35.46 27.50 .35 28 Pumped Dry 4178 NIA
TW4-7 68.36 73.00 68 73 Pumped Dry 1690 NIA
TW4-8 76.24 88.00 76 88 OK 3381 3381 0.00
TW4-9 86.32 110.00 86 110 OK 2479 2478 0.04
TW4-1O 71.80 66.00 72 66 Pumped Dry 710.9 NIA
TW4-11 55.42 77.00 , 55 77 Pumped Dry 1691 NIA
TW4-12 80.70 88.00 81 88 OK 989.1 987 0.21
TW4-l3 73.38 61.00 73 61 Pumped Dry 1633 N/A
TW4-14 7.44 5.50 ·7 6 Pumped Dry 0.1 N/A
TW4-15 (MW Continuously
26) NA pumped well --3607 N/A
TW4-16 103.36 l32.00 103 132 OK 3600 3601 0.03
TW4-17 73.72 77.03 :74 77 OK 3685 3680 0.14
TW4-18 105.64 121.00 106 121 OK 2058 2037 1.03
Continuously
TW4-19 NA pumped well --2789 NIA
Continuously
TW4-20 NA pumped well .--3642 NIA
TW4-21 86.52 99.00 87 99 OK 3479 3488 0.26
TW4-22 77.70 88.00 78 88 OK 5182 5163 0.37
TW4-23 63.46 77.00 63 77 OK 3794 3816 0.58
TW4-24 73.26 99.00 73 99 OK 9680 9684 0.04
TW4-25 103.60 110.00 104 110 OK 3125 3131 0.19
TW4-26 28.68 16.5 29 17 Pumped Dry 6582 NIA
Ii -- ---MW 4, TW4 4, TW4 15, TW4 19, and TW4 20 are contmually pumped wells.
TW4-2,TW4-3, TW4-6, TW4-7, TW4-1O, TW4-11, TW4-13, TW4-14, and TW4-26 were pumped dry and sampled after recovery.
RPD > than 10%
pH
6.57
15.25 15.2
6.4
6.47
6.38
6.23 6.23
6.16
6.57
6.46 6.47
6.22 6.22
6.15
6.37
6.71 6.73
6.57
5.97
6.27
6.28 6.28
6 6
5.9 5.91
6.26
5.81
6.48 6.48
6.3 6.31
5.9 5.89
6.23 6.23
6.62 6.61
3.83
RPD Temp RPD Redox Potential RPD Turbi<iity RPD
I
NIA 15.98 NIA 213 NIA 0.0 NIA
0.33 15.25 15.2 0.33 381 379 0.53 415 I~ 4!!lVi 0.48
NIA 16.2 NIA 403 NIA 110 NIA
NIA 15.14 NIA 441 NIA I~ 21.5 .. NIA
NIA 17.31 NIA 256 NIA 0 NIA
0.00 15.22 15.22 0.00 383 381 0.52 160.l [~6i3iJ~ , 1.86
NIA 15.68 NIA 363 NIA 420:. NIA
NIA 15.28 NIA 267 NIA .. h~.4! ..... NIA
0.15 15.04 15.06 0.13 141 140 0.71 29.1 3'0'1:1 3.05
0.00 15.33 15.39 0.39 277 273 1.45 126.1 1.27 0.71
NIA 16.43 NIA 342 NIA 1I3.~~ NIA
NIA 15.34 NIA 359 NIA '1l8.l! , NIA
0.30 14.8 14.81 0.07 414 410 0.97 4.1 4.2 2.41
NIA 15.29 NIA 420 NIA .. '" 19.9 N/A
NIA 25.36 NIA 386 NIA 1.00 N/A
NIA 16.29 NIA 257 NIA 0.00 NIA
0.00 14.8 14.79 0.07 262 257 1.93 44 46.t 4.66
0.00 20.73 20.81 0.39 210 207 1.44 0 0 0.00
0.17 15.6 15.58 0.l3 421 419 0.48 421 Ill' 4['9 " 0.48
NIA 16.32 N/A 248 N/A 0 N/A
NIA 16.27 NIA 280 N/A ,0.00 NIA
0.00 16.67 16.65 0.12 348 340 2.33 5 5 0.00
0.16 16.59 16.63 0.24 391 383 2.07 9.1 9.~ 0.00
0.17 14.85 14.84 0.07 198 197 0.51 224.1 23(U 2.64
0.00 15 15.00 0.00 397 396 0.25 0 0 0.00
0.15 15.34 15.33 0.07 339 337 0.59 22.1 22 0.45
NIA 15.68 NIA 493 NIA 2.1 NIA
1-2: Holding Time Evaluation
Sample Holding
Collection Lab Analysis Allowed Time
Location Constituent Date Date Holding Time Holding Time Check
MW-4 Chloroform 8117/2011 8/25/2011 8.00 days 14 days OK
MW-4 Chloromethane 8117/2011 8/27/2011 10.00 days 14 days OK
MW-4 Methylene chloride 8/17/2011 8/27/2011 10.00 days 14 days OK
MW-4 Carbon Tetrachloride 8117/2011 8/27/2011 10.00 days 14 days OK
MW-4 Nitrogen 8117/2011 8/22/2011 5.00 days 28 days OK
MW-4 Chloride 8/17/2011 8/25/2011 8.00 days 28 days OK
TW4-1 Chloroform 8118/2011 8/25/2011 7.00 days 14 days OK
TW4-1 Chloromethane 8118/2011 8/26/2011 8.00 days 14 days OK
TW4-1 Methylene chloride 8/18/2011 8/26/2011 8.00 days 14 days OK
TW4-1 Carbon Tetrachloride 8118/2011 8/26/2011 8.00 days 14 days OK
TW4-1 Nitrogen 8118/2011 8/22/2011 4.00 days 28 days OK
TW4-1 Chloride 8/18/2011 8/25/2011 7.00 days 28 days OK
TW4-2 Chloroform 8117/2011 8/26/2011 9.00 days 14 days OK
TW4-2 Chloromethane 8117/2011 8/26/2011 9.00 days 14 days OK
TW4-2 Methylene chloride 8117/2011 8/26/2011 9.00 days 14 days OK
TW4-2 Carbon Tetrachloride 8/17/2011 8/26/2011 9.00 days 14 days OK
TW4-2 Nitrogen 8/17/2011 8/22/2011 5.00 days 28 days OK
TW4-2 Chloride 8117/2011 8/25/2011 8.00 days 28 days OK
TW4-3 Chloroform 8/16/2011 8/23/2011 7.00 days 14 days OK
TW4-3 Chloromethane 8/16/2011 8/23/2011 7.00 days 14 days OK
TW4-3 Methylene chloride 8/16/2011 8/23/2011 7.00 days 14 days OK
TW4-3 Carbon Tetrachloride 8/16/2011 8/23/2011 7.00 days 14 days OK
TW4-3 Nitrogen 8/16/2011 8/22/2011 6.00 days 28 days OK
TW4-3 Chloride 8116/2011 8/22/2011 6.00 days 28 days OK
TW4-4 Chloroform 8117/2011 8/27/2011 10.00 days 14 days OK
TW4-4 Chloromethane 8/17/2011 8/27/2011 10.00 days 14 days OK
TW4-4 Methylene chloride 8117/2011 8/27/2011 10.00 days 14 days OK
TW4-4 Carbon Tetrachloride 8/17/2011 8/27/2011 10.00 days 14 days OK
TW4-4 Nitrogen 8/17/2011 8/22/2011 5.00 days 28 days OK
TW4-4 Chloride 8/17/2011 8/25/2011 8.00 days 28 days OK
TW4-5 Chloroform 8/17/2011 8/25/2011 8.00 days 14 days OK
TW4-5 Chloromethane 8/17/2011 8/25/2011 8.00 days 14 days OK
TW4-5 Methylene chloride 8/17/2011 8/25/2011 8.00 days 14 days OK
TW4-5 Carbon Tetrachloride 8/17/2011 8/25/2011 8.00 days 14 days OK
TW4-5 Nitrogen 8117/2011 8/22/2011 5.00 days 28 days OK
TW4-5 Chloride 8/17/2011 8/25/2011 8.00 days 28 days OK
TW4-6 Chloroform 8/17/2011 8/25/2011 8.00 days 14 days OK
TW4-6 Chloromethane 8117/2011 8/25/2011 8.00 days 14 days OK
TW4-6 Methylene chloride 8117/2011 8/25/2011 8.00 days 14 days OK
TW4-6 Carbon Tetrachloride 8117/2011 8/25/2011 8.00 days 14 days OK
TW4-6 Nitrogen 8117/2011 8/22/2011 5.00 days 28 days OK
TW4-6 Chloride 8117/2011 8/25/2011 8.00 days 28 days OK
TW4-7 Chloroform 8/18/2011 8/25/2011 7.00 days 14 days OK
TW4-7 Chloromethane 8/18/2011 8/26/2011 8.00 days 14 days OK
TW4-7 Methylene chloride 8/18/2011 8/26/2011 8.00 days 14 days OK
TW4-7 Carbon Tetrachloride 8/18/2011 8/26/2011 8.00 days 14 days OK
TW4-7 Nitrogen 8/18/2011 8/22/2011 4.00 days 28 days OK
1-2: Holding Time Evaluation
Sample Holding
Collection Lab Analysis Allowed Time
Location Constituent Date Date Holding Time Holding Time Check
TW4-7 Chloride 8/1812011 8/2512011 7.00 days 28 days OK
TW4-8 Chloroform 811612011 8/2412011 8.00 days 14 days OK
TW4-8 Chloromethane 8/1612011 8/2412011 8.00 days 14 days OK
TW4-8 Methylene chloride 8/16/2011 8/24/2011 8.00 days 14 days OK
TW4-8 Carbon Tetrachloride 8/1612011 812412011 8.00 days 14 days OK
TW4-8 Nitrogen 8/1612011 812212011 6.00 days 28 days OK
TW4-8 Chloride 8/1612011 8/25/2011 9.00 days 28 days OK
TW4-9 Chloroform 8/1612011 8/2412011 8.00 days 14 days OK
TW4-9 Chloromethane 8/1612011 8/2412011 8.00 days 14 days OK
TW4-9 Methylene chloride 8/1612011 8/2412011 8.00 days 14 days OK
TW4-9 Carbon Tetrachloride 8/1612011 812412011 8.00 days 14 days OK
TW4-9 Nitrogen 8/16/2011 812212011 6.00 days 28 days OK
TW4-9 Chloride 8/16/2011 812512011 9.00 days 28 days OK
TW4-10 Chloroform 8/1712011 8/2512011 8.00 days 14 days OK
TW4-10 Chloromethane 8/1712011 8126/2011 9.00 days 14 days OK
TW4-10 Methylene chloride 8/17/2011 812612011 9.00 days 14 days OK
TW4-10 Carbon Tetrachloride 8/1712011 8/2612011 9.00 days 14 days OK
TW4-10 Nitrogen 8117/2011 8/2212011 5.00 days 28 days OK
TW4-10 Chloride 811712011 8/2512011 8.00 days 28 days OK
TW4-11 Chloroform 8/17/2011 8/2512011 8.00 days 14 days OK
TW4-11 Chloromethane 8117/2011 8/2612011 9.00 days 14 days OK
TW4-11 Methylene chloride 8117/2011 8/26/2011 9.00 days 14 days OK
TW4-11 Carbon Tetrachloride 8117/2011 8/26/2011 9.00 days 14 days OK
TW4-11 Nitrogen 8/1712011 8122/2011 5.00 days 28 days OK
TW4-11 Chloride 811712011 8125/2011 8.00 days 28 days OK
TW4-12 Chloroform 8/1612011 8/2312011 7.00 days 14 days OK
TW4-12 Chloromethane 8/1612011 8/2312011 7.00 days 14 days OK
TW4-12 Methylene chloride 8/1612011 8/23/2011 7.00 days 14 days OK
TW4-12 Carbon Tetrachloride 8/1612011 8/2312011 7.00 days 14 days OK
TW4-12 Nitrogen 8/1612011 8/2212011 6.00 days 28 days OK
TW4-12 Chloride 8/1612011 812212011 6.00 days 28 days OK
TW4-13 Chloroform 8/1612011 812312011 7.00 days 14 days OK
TW4-13 Chloromethane 8/16/2011 812312011 7.00 days 14 days OK
TW4-13 Methylene chloride -8/16/2011 8/23/2011 7.00 days 14 days OK
TW4-13 Carbon Tetrachloride 8/1612011 812312011 7.00 days 14 days OK
TW4-13 Nitrogen 8/1612011 8/2212011 6.00 days 28 days OK
TW4-13 Chloride 8/1612011 8/2212011 6.00 days 28 days OK
TW4-14 Chloroform 8116/2011 812512011 9.00 days 14 days OK
TW4-14 Chloromethane 8/1612011 812512011 9.00 da,)'s 14 days OK
TW4-14 Methylene chloride 8/1612011 812512011 9.00 days 14 days OK
TW4-14 Carbon Tetrachloride 811612011 8/2512011 9.00 days 14 days OK
TW4-14 Nitrogen 811612011 8/2212011 6.00 days 28 days OK
TW4-14 Chloride 8/16/2011 8/2212011 6.00 days 28 days OK
TW4-15 Chloroform 811712011 8/2612011 9.00 days 14 days OK
TW4-15 Chloromethane 8/1712011 8/26/2011 9.00 days 14 days OK
TW4-15 Methylene chloride 8/1712011 8/2612011 9.00 days 14 days OK
TW4-15 Carbon Tetrachloride 8117/2011 8/2612011 9.00 days 14 days OK
TW4-15 Nitrogen 8/1712011 812212011 5.00 days 28 days OK
1-2: Holding Time Evaluation
Sample Holding
Collection Lab Analysis Allowed Time
Location Constituent Date Date Holding Time Holding Time Check
TW4-15 Chloride 811712011 812512011 8.00 days 28 days OK
TW4-16 Chloroform 8117/2011 8/2512011 8.00 days 14 days OK
TW4-16 Chloromethane 811712011 8125/2011 8.00 days 14 days OK
TW4-16 Methylene chloride 8/1712011 8125/2011 8.00 days 14 days OK
TW4-16 Carbon Tetrachloride 811712011 8/25/2011 8.00 days 14 days OK
TW4-16 Nitrogen 811712011 8/22/2011 5.00 days 28 days OK
TW4-16 Chloride 8117/2011 8125/2011 8.00 days 28 days OK
MW-32 Chloroform 8116/2011 8125/2011 9.00 days 14 days OK
MW-32 Chloromethane 8116/2011 8125/2011 9.00 days 14 days OK
MW-32 Methylene chloride 8116/2011 8125/2011 9.00 days 14 days OK
MW-32 Carbon Tetrachloride 8116/2011 8/25/2011 9.00 days 14 days OK
MW-32 Nitrogen 8116/2011 8122/2011 6.00 days 28 days OK
MW-32 Chloride 8116/2011 8/22/2011 6.00 days 28 days OK
TW4-18 Chloroform 811712011 8/24/2011 7.00 days 14 days OK
TW4-18 Chloromethane 811712011 8124/2011 7.00 days 14 days OK
TW4-18 Methylene chloride 811712011 8124/2011 7.00 days 14 days OK
TW4-18 Carbon Tetrachloride 8117/2011 812412011 7.00 days 14 days OK
TW4-18 Nitrogen 811712011 812212011 5.00 days 28 days OK
TW4-18 Chloride 811712011 8125/2011 8.00 days 28 days OK
TW4-19 Chloroform 811712011 812612011 9.00 days 14 days OK
TW4-19 Chloromethane 811712011 812612011 9.00 days 14 days OK
TW4-19 Methylene chloride 8117/2011 8/2612011 9.00 days 14 days OK
TW4-19 Carbon Tetrachloride 8117/2011 8/2612011 9.00 days 14 days OK
TW4-19 Nitrogen 8/17/2011 8/22/2011 5.00 days 28 days OK
TW4-19 Chloride 8/1712011 8/25/2011 8.00 days 28 days OK
TW4-20 Chloroform 811712011 8/2612011 9.00 days 14 days OK
TW4-20 Chloromethane 8/17/2011 812712011 10.00 days 14 days OK
TW4-20 Methylene chloride 8/1712011 812712011 10.00 days 14 days OK
TW4-20 Carbon Tetrachloride 8/17/2011 812712011 10.00 days 14 days OK
TW4-20 Nitrogen 8/17/2011 812212011 5.00 days 28 days OK
TW4-20 Chloride 8117/2011 8/2512011 8.00 days 28 days OK
TW4-21 Chloroform 8117/2011 8/2512011 8.00 days 14 days OK
TW4-21 Chloromethane 811712011 8/2712011 10.00 days 14 days OK
TW4-21 Methylene chloride 8117/2011 8/2712011 10.00 days 14 days OK
TW4-21 Carbon Tetrachloride 811712011 8/2712011 10.00 days 14 days OK
TW4-21 Nitrogen 811712011 812212011 5.00 days 28 days OK
TW4-21 Chloride 8/17/2011 8/25/2011 8.00 days 28 days OK
TW4-22 Chloroform 8/1712011 8/2512011 8.00 days 14 days OK
TW4-22 Chloromethane 8/1712011 8/2412011 7.00 days 14 days OK
TW4-22 Methylene chloride 8/17/2011 8/2412011 7.00 days 14 days OK
TW4-22 Carbon Tetrachloride 811712011 8/2412011 7.00 days 14 days OK
TW4-22 Nitrogen 811712011 8/2212011 5.00 days 28 days OK
TW4-22 Chloride 8117/2011 812512011 8.00 days 28 days OK
TW4-23 Chloroform 8116/2011 8/2312011 7.00 days 14 days OK
TW4-23 Chloromethane 811612011 8/2312011 7.00 days 14 days OK
TW4-23 Methylene chloride 811612011 8123/2011 7.00 days 14 days OK
TW4-23 Carbon Tetrachloride 8116/2011 8/2312011 7.00 days 14 days OK
TW4-23 Nitrogen 811612011 8/2212011 6.00 days 28 days OK
1-2: Holding Time Evaluation
Sample Holding
Collection Lab Analysis Allowed Time
Location Constituent Date Date Holding Time Holding Time Check
TW4-23 Chloride 8116/2011 8125/2011 9.00 days 28 days OK
TW4-24 Chloroform 8117/2011 8/2412011 7.00 days 14 days OK
TW4-24 Chloromethane 8117/2011 8/2412011 7.00 days 14 days OK
TW4-24 Methylene chloride 8117/2011 8/24/2011 7.00 days 14 days OK
TW4-24 Carbon Tetrachloride 8117/2011 8/2412011 7.00 days 14 days OK
TW4-24 Nitrogen 811712011 812212011 5.00 days 28 days OK
TW4-24 Chloride 8/1712011 8/25/2011 8.00 days 28 days OK
TW4-25 Chloroform 8116/2011 8124/2011 8.00 days 14 days OK
TW4-25 Chloromethane 8116/2011 8124/2011 8.00 days 14 days OK
TW4-25 Methylene chloride 8/16/2011 8/24/2011 8.00 days 14 days OK
TW4-25 Carbon Tetrachloride 8116/2011 812412011 8.00 days 14 days OK
TW4-25 Nitrogen 8116/2011 8/22/2011 6.00 days 28 days OK
TW4-25 Chloride 8116/2011 8/25/2011 9.00 days 28 days OK
TW4-26 Chloroform 8/1712011 8/2412011 7.00 days 14 days OK
TW4-26 Chloromethane 8/1712011 812412011 7.00 days 14 days OK
TW4-26 Methylene chloride 8/17/2011 8/2412011 7.00 days 14 days OK
TW4-26 Carbon Tetrachloride 8/17/2011 812412011 7.00 days 14 days OK
TW4-26 Nitrogen 8117/2011 8122/2011 5.00 days 28 days OK
TW4-26 Chloride 8/17/2011 8125/2011 8.00 days 28 days OK
TW4-60 Chloroform 8/1712011 812612011 9.00 days 14 days OK
TW4-60 Chloromethane 811712011 812612011 9.00 days 14 days OK
TW4-60 Met~ene chloride 811712011 8/26/2011 9.00 days 14 days OK
TW4-60 Carbon Tetrachloride 8/17/2011 8126/2011 9.00 days 14 days OK
TW4-60 Nitrogen 8/17/2011 8/22/2011 5.00 days 28 days OK
TW4-60 Chloride 8/1712011 8/25/2011 8.00 days 28 days OK
TW4-65 Chloroform 8/1612011 812412011 8.00 days 14 days OK
TW4-65 Chloromethane 8/1612011 812412011 8.00 days 14 days OK
TW4-65 Methylene chloride 8/1612011 812412011 8.00 days 14 days OK
TW4-65 Carbon Tetrachloride 8/16/2011 812412011 8.00 days 14 days OK
TW4-65 Nitrogen 8/1612011 812212011 6.00 days 28 days OK
TW4-65 Chloride 8/1612011 8/2512011 9.00 days 28 days OK
TW4-70 Chloroform 8/17/2011 8/26/2011 9.00 days 14 days OK
TW4-70 Chloromethane 8117/2011 812612011 9.00 days 14 days OK
TW4-70 Methylene chloride 8117/2011 8126/2011 9.00 days 14 days OK
TW4-70 Carbon Tetrachloride 811712011 8/26/2011 9.00 days 14 days OK
TW4-70 Nitrogen 811712011 8/2212011 5.00 days 28 days OK
TW4-70 Chloride 811712011 812512011 8.00 days 28 days OK
Table 1-3 Recipt Temperature Check
Sample Batch Wells in Batch Temperature
C11050927 MW-4, TW4-1, TW4-2, TW4-3, TW4-3R, TW4-4, TW4-5, 2.8 °C
TW4-6, TW4-7, TW4-7R, TW4-8, TW4-9, TW4-1O, TW4-
11, TW4-12, TW4-13, TW4-14, TW4-15 (MW-26), TW4-
16, MW-32, TW4-18, TW4-19, TW4-20, TW4-21, TW4-
22, TW4-23, TW4-24,TW4-24R, TW4-25, TW4-26, TW4-
60, TW4-65, TW4-70, Trip Blank
1-4 Analytical Method Check
Parameter Method Method Used by Lab
Carbon Tetrachloride SW8260B SW8260B
Chloride A4500-Cl B A4500-Cl B
Chloroform SW8260B SW8260B
Chloromethane SW8260B SW8260B
Methylene chloride SW8260B SW8260B
Nitrogen E353.2 E353.2
All parameters were analyzed using the reporting method specificied in the QAP
1-5 Reporting Limit Evaluation
Rqd'
Lab Reporting Reporting Qualifier
Location Constituent Limit Limit Check
MW-4 Chloroform 100 ug/L 1.0 ug/L OK
MW-4 Chloromethane 1 ug/L 1.0 ug/L OK
MW-4 Methylene chloride 1 ug/L 1.0 ug/L OK
MW-4 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
MW-4 Nitrogen 0.5 mg/L 0.1 mg/L OK
MW-4 Chloride 1 mg/L 1 mg/L OK
TW4-1 Chloroform 100 ug/L 1.0 ug/L OK
TW4-1 Chloromethane 1 ug/L 1.0 ug/L OK
TW4-1 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-1 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-1 Nitrogen 0.5 mg/L 0.1 mg/L OK
TW4-1 Chloride 1 mg/L 1 mg/L OK
TW4-2 Chloromethane 1 ug/L 1.0 ug/L OK
TW4-2 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-2 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-2 Nitrogen 0.5 mg/L 0.1 mg/L OK
TW4-2 Chloride 1 mg/L 1 mg/L OK
TW4-3 Chloroform 1 ug/L 1.0 ug/L OK
TW4-3 Chloromethane 1 ug/L 1.0 ug/L OK
TW4-3 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-3 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-3 Nitrogen 0.2 mg/L 0.1 mg/L OK
TW4-3 Chloride 1 mg/L 1 mg/L OK
TW4-4 Chloroform 100 ug/L 1.0 ug/L OK
TW4-4 Chloromethane 1 ug/L 1.0 ug/L OK
TW4-4 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-4 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-4 Nitrogen 0.5 mg/L 0.1 mg/L OK
TW4-4 Chloride 1 mg/L 1 mg/L OK
TW4-5 Chloroform 1 ug/L 1.0 ug/L OK
TW4-5 Chloromethane 1 ug/L 1.0 ug/L OK
TW4-5 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-5 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-5 Nitrogen 0.5 mg/L 0.1 mg/L OK
TW4-5 Chloride 1 mg/L 1 mg/L OK
TW4-6 Chloroform 1 ug/L 1.0 ug/L OK
TW4-6 Chloromethane 1 ug/L 1.0 ug/L OK
TW4-6 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-6 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-6 Nitrogen 0.1 mg/L 0.1 mg/L OK
TW4-6 Chloride 1 mg/L 1 mg/L OK
TW4-7 Chloroform 100 ug/L 1.0 ug/L OK
TW4-7 Chloromethane 1 ug/L 1.0 ug/L OK
TW4-7 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-7 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-7 Nitrogen 0.2 mg/L 0.1 mg/L OK
TW4-7 Chloride 1 mg/L 1 mg/L OK
1-5 Reporting Limit Evaluation
Rqd'
Lab Reporting Reporting Qualifier
Location Constituent Limit Limit Check
TW4-8 Chloroform 1 ug/L 1.0 ug/L OK
TW4-8 Chloromethane 1 ug/L 1.0 ug/L OK
TW4-8 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-8 Carbon Tetrachloride 1 ug/L 1.0 ug/L 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 1.0 ug/L OK
TW4-9 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-9 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-9 Nitrogen 0.2 mg/L 0.1 mg/L OK
TW4-9 Chloride 1 mg/L 1 mg/L OK
TW4-1O Chloroform 10 ug/L 1.0 u~/L OK
TW4-1O Chloromethane 1 ug/L 1.0 ug/L OK
TW4-10 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-1O Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-1O Nitrogen 0.1 mg/L 0.1 m~/L OK
TW4-1O Chloride 1 mg/L 1 mg/L OK
TW4-11 Chloroform 100 ug/L 1.0 ug/L OK
TW4-11 Chloromethane 1 ug/L 1.0 ug/L OK
TW4-11 Methylene chloride 1 ug/L 1.0 tJg/L OK
TW4-11 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-11 Nitrogen 0.5 mg/L 0.1 mg/L OK
TW4-11 Chloride 1 mg/L 1 mg/L OK
TW4-12 Chloroform 1 ug/L 1.0 ug/L OK
TW4-12 Chloromethane 1 ug/L 1.0 ug/L OK
TW4-12 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-12 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-12 Nitrogen 0.5 mg/L 0.1 mg/L OK
TW4-12 Chloride 1 mg/L 1 mg/L OK
TW4-13 Chloroform 1 ug/L 1.0 ug/L OK
TW4-13 Chloromethane 1 ug/L 1.0 u~/L OK
TW4-13 Methylene chloride 1 ug/L 1.0 u_~/L OK
TW4-13 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-13 Nitrogen 0.5 mg/L 0.1 mg/L OK
TW4-13 Chloride 1 mg/L 1 mg/L OK
TW4-14 Chloroform 1 ug/L 1.0 u~/L OK
TW4-14 Chloromethane 1 ug/L 1.0 ug/L OK
TW4-14 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-14 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-14 Nitrogen 0.1 mg/L 0.1 m~/L OK
TW4-14 Chloride 1 mg/L 1 mg/L OK
TW4-15 Chloroform 100 ug/L 1.0 ug/L OK
TW4-15 Chloromethane 1 ug/L 1.0 ug/L OK
TW4-15 Methylene chloride 1 ug/L 1.0 tJg/L OK
TW4-15 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-15 Nitrogen 0.1 mg/L 0.1 mg/L OK
TW4-15 Chloride 1 mg/L 1 mg/L OK
TW4-16 Chloroform 1 ug/L 1.0 ug/L OK
1-5 Reporting Limit Evaluation
Rqd'
Lab Reporting Reporting Qualifier
Location Constituent Limit Limit Check
TW4-16 Chloromethane 1 ug/L 1.0 ug/L OK
TW4-16 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-16 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-16 Nitrogen 0.1 mg/L 0.1 mg/L OK
TW4-16 Chloride 1 mg/L 1 mg/L OK
MW-32 Chloroform 1 ug/L 1.0 ug/L OK
MW-32 Chloromethane 1 ug/L 1.0 ug/L OK
MW-32 Methylene chloride 1 ug/L 1.0 ug/L OK
MW-32 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
MW-32 Nitrogen 0.1 mg/L 0.1 mg/L OK
MW-32 Chloride 1 mg/L 1 mg/L OK
TW4-18 Chloroform 1 ug/L 1.0 ug/L OK
TW4-18 Chloromethane 1 ug/L 1.0 ug/L OK
TW4-18 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-18 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-18 Nitrogen 0.5 mg/L 0.1 mg/L OK
TW4-18 Chloride 1 mg/L 1 mg/L OK
TW4-19 Chloroform 100 ug/L 1.0 ug/L OK
TW4-19 Chloromethane 1 ug/L 1.0 ug/L OK
TW4-19 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-19 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-19 Nitrogen 0.2 mg/L 0.1 mg/L OK
TW4-19 Chloride 1 mg/L 1 mg/L OK
TW4-20 Chloroform 1000 ug/L 1.0 ug/L OK
TW4-20 Chloromethane 1 ug/L 1.0 ug/L OK
TW4-20 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-20 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-20 Nitrogen 0.5 mg/L 0.1 mg/L OK
TW4-20 Chloride 1 mg/L 1 mg/L OK
TW4-21 Chloroform 10 ug/L 1.0 ug/L OK
TW4-21 Chloromethane 1 ug/L 1.0 ug/L OK
TW4-21 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-21 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-21 Nitrogen 1 mg/L 0.1 mg/L OK
TW4-21 Chloride 1 mg/L 1 mg/L OK
TW4-22 Chloroform 100 ug/L 1.0 ug/L OK
TW4-22 Chloromethane 1 ug/L 1.0 ug/L OK
TW4-22 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-22 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-22 Nitrogen 1 mg/L 0.1 mg/L OK
TW4-22 Chloride 1 mg/L 1 mg/L OK
TW4-23 Chloroform 1 ug/L 1.0 ug/L OK
TW4-23 Chloromethane 1 ug/L 1.0 ug/L OK
TW4-23 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-23 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-23 Nitrogen 0.1 mg/L 0.1 mg/L OK
TW4-23 Chloride 1 mg/L 1 mg/L OK
TW4-24 Chloroform 1 ug/L 1.0 ug/L OK
1-5 Reporting Limit Evaluation
Rqd'
Lab Reporting Reporting Qualifier
Location Constituent Limit Limit Check
TW4-24 Chloromethane 1 ug/L 1.0 ug/L OK
TW4-24 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-24 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-24 Nitrogen 1 mg/L 0.1 mg/L OK
TW4-24 Chloride 1 mg/L 1 mg/L OK
TW4-25 Chloroform 1 ug/L 1.0 ug/L OK
TW4-25 Chloromethane 1 ug/L 1.0 ug/L OK
TW4-25 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-25 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-25 Nitrogen 1 mg/L 0.1 mg/L OK
TW4-25 Chloride 1 mg/L I mg/L OK
TW4-26 Chloroform 1 ugIL 1.0 ug/L OK
TW4-26 Chloromethane 1 ugIL 1.0 ug/L OK
TW4-26 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-26 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-26 Nitrogen 1 mg/L 0.1 mg/L OK
TW4-26 Chloride 1 mg/L 1 mg/L OK
TW4-60 Chloroform 1 ug/L 1.0 ug/L OK
TW4-60 Chloromethane 1 ug/L 1.0 ug/L OK
TW4-60 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-60 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-60 Nitrogen 0.1 mg/L 0.1 mg/L OK
TW4-60 Chloride 1 mg/L 1 mg/L OK
TW4-65 Chloroform 100 ug/L 1.0 ug/L OK
TW4-65 Chloromethane 1 ug/L 1.0 ug/L OK
TW4-65 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-65 Carbon Tetrachloride 1 ug/L 1.0 ugIL OK
TW4-65 Nitrogen 0.1 mg/L 0.1 mg/L OK
TW4-65 Chloride 1 mg/L 1 mg/L OK
TW4-70 Chloroform 1 ug/L 1.0 ug/L OK
TW4-70 Chloromethane 1 ugIL 1.0 ug/L OK
TW4-70 Methylene chloride 1 ug/L 1.0 ug/L OK
TW4-70 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK
TW4-70 Nitrogen 0.1 mg/L 0.1 mg/L OK
TW4-70 Chloride 1 mg/L 1 mg/L OK
U = Analyte was not detected at the RL
D = RL was increased due to sample matrix or required dilution due to the sample concentration. In all
1-6 Trip Blank Evaluation
-Lab Report Constituent Result
CII080835 Carbon tetrachloride ND ug/L
Chloroform ND ug/L
Chloromethane ND ug/L
Methylene chloride ND ug/L
1-7 QAJQC Evaluation for Sample Duplicates
Constituent , TW4-23 TW4-65 %RPD "
Chloride (mg/L) 41 45 9
Nitrate + Nitrite (as N) ND ND NC
Carbon Tetrachloride ND ND NC
Chloroform ND ND NC
Chloromethane ND ND NC
Dichloromethane (Methylene Chloride) ND ND NC
Constituent i" TW4-16 TW4-70 %RPD " Chloride (mg/L) 63 62 1.60
Nitrate + Nitrite (as N) 1.7 1.7 0.00
Carbon Tetrachloride ND ND NC
Chloroform 9.2 8.1 12.72
Chloromethane ND ND NC
Dichloromethane (Methylene Chloride) ND 1.3 NC
1-8 QC Control Limits for Analysis and Blanks
Matrix Spike % Recovery Comparison
Lab Report Lab Sample ID Well
Cll080835 CII080821-002 NA
NA -Not a Denison sample
Surrogate % Recovery
.,
Lab Report Well/Sample Analyte
Cll080835 TW4-3 Bromofluorobenezene
Cll080835 TW4-3R Bromofluorobenezene
Cll080835 TW4-7R Bromofluorobenezene
Cll080835 TW4-8 Bromofluorobenezene
Cll080835 TW4-9 Bromofluorobenezene
Cll080835 TW4-12 Dichlorobenzene-d4
Cll080835 TW4-12 Bromofluorobenezene
Cll080835 TW4-13 Bromofluorobenezene
Cll080835 TW4-18 Bromofluorobenezene
Cll080835 TW4-22 Bromofluorobenezene
Cll080835 TW4-23 Dichlorobenzene-d4
Cll080835 TW4-23 Bromofluorobenezene
Cll080835 TW4-24 Dichlorobenzene-d4
Cll080835 TW4-24 Bromofluorobenezene
Cll080835 TW4-25 Bromofluorobenezene
Cll080835 TW4-26 Bromofluorobenezene
Cll080835 TW4-65 Bromofluorobenezene
Nitrogen 107 111
I ' " "" ,f'i,~';;'~;~~' I ,,:'f'" , , '" ',,',';: " ',' "~" ' Lab "~~, 1"1f . ''''':;',g,
~.' ~ . .;.. ~·i:~ , Q~P:,
" ,'~~:", : ~,i' ;;,:"fli: 13;~,pe~~e~:' . Req~!i'r.,ed"
Surrogat(!' %l{E'{:'y RE(:-.Raiig~ ~"~Range ..
125 80-120 None
124 80-120 None
132 80-120 None
124 80-120 None
130 80-120 None
121 80-120 None
134 80-120 None
133 80-120 None
127 80-120 None
125 80-120 None
122 80-120 None
135 80-120 None
121 80-120 None
124 80-120 None
128 80-120 None
127 80-120 None
130 80-120 None
.REC
Rlinge
90-110
RPI) ,
3.7
1-9 Rinsate Evaluation
Result for
Previous Well Previous Well
Rinsate Sample Parameter Rinsate Result Sampled Sampled
TW4-7R Chloroform 2.8 I ugiL TW4-11 820 I ugiL
Previous well sampled is the well that the pump was used to purge prior to the rinsate sample.
D = Reporting limit raised due to dilution/sample matrix.
** Only rinsates with detections are listed. TW4-3R and TW4-24R results were ND
Rinsate
Reporting
Qualifier Limit
D 1.0ugiL
TabJ
Kriged Current Quarter Chloroform Isoconcentration Map
~
f'
PROPERTY
BOUNDARY
II
II « -...:::--
MW-2
II MW-01 eNS II
II
II
II
II ~g II
'/
~NS TWN-7
CELL NO.1
MW-18 eNS
~NS TWN-18
~NS
TWN-3
NO
~NS TWN-15
~NS
~NS TWN-11
~NS
TWN-14
TWN-10
~NS
~NS TWN-9
TWN-6 PIEZ-1
"NS
~NS MW-19 TWN-8 eNS
PIEZ-2
"NS
~NS
Mltt2~ITE
N4 f
~N PIEZ-3 TWN-"NS 0
~NS TWN-12
(
CELL NO.2
o
MW-4
.1700
TW4-1
0 1300
PIEZ-1
Q NS
TWN-4
,~ NS
MW-35 . -</-ND
MW-36
~ ND
MW-03 eNS
N
MW-20 eNS
SCALE IN FEET
EXPLANATION
perched monitoring well showing
concentration in uG/1
temporary perched monitoring well
showing concentration in uG/1
perched piezometer (not sampled)
temporary perched nitrate monitoring well
(not sampled)
perched monitoring well installed
August/September, 2010
showing concentration in uG/1
perched monitoring well installed April,
2011 showing concentration in uG/L
3000
HYDRO
GEO
CHEM, INC.
MW-17
e NS
33
l'M~1 500 6Wg-14
4-6 NO 0 1 o TW4-23 TW~326
PIEZ4 "NS
* PIEZ-5
"NS
T37S
T38S
MW-22 e NS
II
//
//
//
//
//
//
//
//
//
//
NOTE: MW-4, MW-26, TW4-4, TW4-19 and TW4-20 are pumping wells
)
>
'7
KRIGED 3rd QUARTER, 2011 CHLOROFORM (uG/L)
WHITE MESA SITE
APPROVED DATE REFERENCE FIGURE
SJS H:/718000/nov11/chI0911.srf J-1
TabK
Analyte Concentrations Over Time
1~:':~~~~~'!J~~11~~f~~~ ~,~ : "nil! ' , ' lti 1 '~'t '. ~ . ' , I e ' a ' etli . C':lil e IMW . metr:a~llIodde . .: .!l; . .
, ':~\l.iI(' ' .. !I;\! ii~~ ~~!~Ug{.l~~~. h:IOlnde ~ " I~ tID )~. "" . -{;c' '" '" _, .-(~U I, iJ;.. r~ ',,,: '.li\ ',' . I~'
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-01 4360 8.77
22-Jun-01 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-Jul-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
I-Dec-OS 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-Jul-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
2000 <1 <1 5.3 43
14-0ec-09 1800 1.6 NO NO 5.8 44
17-Feb-1O 1600 1.2 NO NO 4 45
14-Jun-1O 2100 1.2 NO NO 5.1 41
16-Aug-1O 1900 1.5 NO NO 4.8 38
11-0ct-l0 1500 1.4 NO NO 4.9 41
23-Feb-ll 1700 1.5 NO NO 4.6 40
I-Jun-ll 1700 1.4 NO NO 4.9 35
17-Aug-ll 1700 1.1 NO NO 4.9 41
24-Jun-09 1500 1 <1 <1 37
15-Sep-09 1700 <1 <1 <1 7.3 36
29-Dec-09 1400 <1 <1 <1 6.8 41
3-Mar-1O 1300 <1 <1 <1 7.1 35
15-Jun-1O 1600 1.2 <1 <1 6.8 40
24-Aug-1O 1500 <1 <1 <1 6.8 35
14-0ct-1O 1500 <1 <1 <1 6.6 40
24-Feb-ll 1300 ND ND ND 6.6 41
I-Jun-ll 1200 ND ND ND 7 35
18-Aug-ll 1300 ND ND ND 6.8 36
~i' 'TW4-' ~hlo .,., ,~>: 'I t ., .IlI'de;,1 C ~etl1:a~e 1:/ eltl' 'd~~~ If",Nltl7<ater lil·fE6IoFld~ , "'~ "~"". "ifloi>1 "j ..da'ibon" .'~ ":H Melh~te"M .;,'.t <'" l ' .• ~,
~-. ' I~' " '~l'!:-e ,rae OFI e. 'Ii " ; ~ :~;~ on e~,.li~ I !t~: IU~ '\",' it~~r~j~ 1~~1i ",~~~~~,,'i "";~·i:tA~·~;tt.'.~ :,j i~i'::ffli' .,~J ,£ ,:,,~~ 1~,,1(lllktI~):; I~~!~~~~.~~l !~.,w.~P.,)~
1O-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
17-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-Peb-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-0ct-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
15-0ct-08 3200 2,4 <2 <2 7.99 47
ll-Mar-09 3100 2.2 <1 <1 6.5 46
24-Jun-09 2800 2 <1 <1 6,4 44
15-Sep-09 3000 2 <1 <1 6.6 43
29-Dec-09 1600 2 <1 <1 6,4 46
3300 <1 <1 6.7 43
3300 2.5 <1 <1 6.6 43
14-0ct-10 3000 2.1 <1 <1 6.5 41
24-Feb-11 3100 2.4 ND ND 7 46
2-Jun-ll 3000 2.2 ND ND 6.8 42
17-Aug-ll 2400 1.6 ND ND 6 48
~,::~\,)};:t~: i"~f!l""'Il+~J'_ B iF .. ' 011Om.! iii .' ,Nlbat 10 .. 00 ! i. :,~ ':,;:, I .: I OF. r
~li' II , ~' I iUgll ). II,: .' ,~~ ;~li ,1f ,/), 'i,,' ,
28-Jun-99 3S00 7.6
29-Nov-99 702
lS-Mar-OO 834
2-Sep-00 836 1.S6
29-Nov-00 836 1.97
27-Mar-01 347 1.8S
21-Jun-01 390 2.61
20-Sep-Ol 300 3.06
7-Nov-01 170 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-Dec-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-Feb-07 <1 <1 <1 <1 3.1 22
27-Jun-07 <1 <1 <1 <1 3.3 23
IS-Aug-07 <1 <1 <1 <1 3.1 24
10-0ct-07 <1 <1 <1 <1 2.8 27
26-Mar-08 <1 <1 <1 <1 2.8 21
2S-Jun-08 <1 <1 <1 <1 2.8S 19
10-Sep-08 <1 <1 <1 <1 2.66 19
IS-0ct-08 <1 <1 <1 <1 2.63 22
4-Mar-09 <1 <1 <1 <1 2.S 21
24-Jun-09 <1 <1 <1 <1 2.9 20
16-Dec-09 <1 <1 <1 <1 2.5 22
23-Feb-1O <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
5-0ct-1O <1 <1 <1 <1 3.3 26
15-Feb-11 ND ND ND ND 3.5 23
25-May-11 ND ND ND ND 3.7 23
16-Aug-ll ND ND ND ND 4 23
. '.' . FofoF~W; I~I ' • I~ U etliane 1,1< .' ,j ,ra ~. ;~~~~'¥I~'@O~~'~~:~~~:r\~/N:'len~ W~ . Ill , ry . . cl l~lFetIr~chlolll,(I~K~'. . ') t, Chlorn'le. Zi, '1 (m '
I':,. :.r.'~;.h'." ,,~, . '~l,;.\1.~;;'1!'I~il ,~r~tiilIJ)r4P :~:~. ,M'~i' ;'\It,~~" ,,/!(t~~~'1 ;fl\7 ,~;,' ,'Iii Ii" '.
6-Jun-00 0
2-Sep-00 0
28-Nov-00 3,9
28-Mar-01 2260 1.02
20-Jun-01 3100 14,S
20-Sep-01 3200 14
8-Nov-01 2900 14,8
26-Mar-02 3400 IS
22-May-02 3200 13,2
12-Sep-02 4000 13.4
24-Nov-02 3800 12,6
28-Mar-03 3300 13.4
23-Jun-03 3600 12,8
12-Sep-03 2900 12,3
8-Nov-03 3S00 12,3
29-Mar-04 3200 12.2
22-Jun-04 3S00 12,1
17-Sep-04 3100 11,1
17-Nov-04 3600 10,8
16-Mar-OS 3100 11.6
2S-May-OS 2400 NA NA NA 11.3 NA
31-Aug-OS 3200 <10 <10 <10 9,9 NA
I-Dee-OS 2800 <SO <SO <SO 10.2 NA
9-Mar-06 2900 <SO <SO <SO 9.S Sl
14-Jun-06 2600 <SO <SO <SO 8.6 48
20-Jul-06 28S0 <SO <SO <SO 9.7 SO
8-Nov-06 2670 1.7 <1 <1 10.1 49
28-Feb-07 2200 1.S <1 <1 9 49
27-Jun-07 2400 1.7 <1 <1 9.4 47
lS-Aug-07 2700 1.S <1 <1 9.S 4S
1O-Oet-07 2S00 1.S <1 <1 9.S 47
26-Mar-08 2800 1.6 <1 <1 9.2 43
2S-Jun-08 2S00 1.S <1 <1 10.8 42
10-Sep-08 2200 1.4 <1 <1 8.83 39
lS-0et-08 2S00 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
lS-Sep-09 2000 1.1 <1 <1 8.4 39
29-Dee-09 9S0 1.1 <1 <1 7,6 41
I~~i~~~'/" ~ ~.m~o~"'~'tl. ~~ty_ ''ifW4 5 -.11,11',((;; ,0fOFnl::r . "IiI • d 100comethane hI· o~ld~
'I • ~ Ii', ~~ 't!' etrac 01'1 e ti Olu ., 'm' \' I' .,
. rf . ,!Ql~ lit, I ,,;~ ,~;\\\:imt(\;~~~~f~lf . g,,~~jfi' I I " I/~~~f~ .
20-Dec-99 29.5
15-Mar-00 49.0
2-Sep-00 124
29-Nov-00 255
28-Mar-Ol 236
20-Jun-Ol 240
20-Sep-Ol 240
7-Nov-Ol 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 <1 <1 2.9 55
28-Feb-07 33.0 <1 <1 <1 7.8 57
27-Jun-07 26.0 <1 <1 <1 7 45
15-Aug-07 9.2 <1 <1 <1 7.7 38
10-0ct-07 9.4 <1 <1 <1 8.2 39
26-Mar-08 11.0 <1 <1 <1 7.4 36
25-Jun-08 9.3 <1 <1 <1 8.7 37
10-Sep-08 11.0 <1 <1 <1 7.91 34
15-0ct-08 10.0 <1 <1 <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
13.0 <1 <1 <1 6.8 43
9-Jun-1O 12.0 <1 <1 <1 7.1 28
ll-Aug-lO 12.0 <1 <1 <1 7 38
13-0ct-1O 11.0 <1 <1 <1 7.2 41
22-Feb-ll 10.0 ND ND ND 7 34
26-May-11 9.0 ND ND ND 7.2 35
17-Aug-ll 10.0 ND ND ND 7.5 37
~~'" ~l "'.1: ~,! ' !I ,,' €~t;I;on I;,
... ;~~~'.. ~~~;"~ '}!',-:;', ~,,, , . y. eth~lene T;W4'~ t!. (8h~:o,f.~l1~ ,~ " Il i,;i&\~~~ethane I ' 'a ,ate 1~:OftlbrJde\~ Tetl1 r,i(le I "I
I' ';~1:! 0111 e .' , Ill , ( glD'
!) "",iI' !Ij ,~I:~ (\tM"G ,:~~~'~.'j ~,.j~, • ,~, , I~~,'~,,~~ :', U~9;~'i[' , ~~tisIl, "dW~
6-Jun-00 0
2-Sep-00 0
28-Nov-00 0 ND
26-Mar-Ol 0 0,13
20-Jun-Ol 0 ND
20-Sep-Ol 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
31-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-Ju1-06 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
15-Aug-07 18.0 <1 <1 <1 0.7 36
1O-0ct-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
15-0ct-08 37.0 <1 <1 <1 1.01 33
I1-Mar-09 81.0 <1 <1 <1 2.2 35
24-Jun-09 120 <1 <1 <1 2.7 37
15-Sep-09 280 <1 <1 <1 5.0 37
22-Dec-09 250 <1 <1 <1 6.1 41
25-Feb-1O 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
13-0ct-1O 420 <1 <1 <1 4.3 41
23-Feb-ll 47 ND ND ND 0.7 40
~!ii';' . tJhlorofol'm !" j' m'eth'ane ." «;Iil ' lor1di: ' e ' 01' ",
• ' .1i \, " ~?I , ~ i',,~~~~,: , . ' g~&~! I
29-Nov-99 256
15-Mar-00 616
2-Sep-00 698
29-Nov-00 684 1.99
28-Mar-01 747 2.46
20-Jun-01 1100 2.65
20-Sep-01 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 1.1 <1 <1 5 47
27-Jun-07 2600 1.5 <1 <1 5.1 45
14-Aug-07 2300 1.4 <1 <1 4.7 44
10-0ct-07 1900 1.2 <1 <1 4.7 45
26-Mar-08 2200 1.3 <1 <1 4.2 43
25-Jun-08 1800 1.3 <1 <1 4.8 43
10-Sep-08 1600 1.4 <1 <1 4.16 35
15-0ct-08 1900 <2 <2 <2 4.01 40
ll-Mar-09 1800 1.2 <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
~"~J:;~r~M~~ W4 ' lor ·d 0 3 'C " , -I II e' . e · , ,~ugll) " ,~ . . ·'.l, !J , gn9 mgtJ~ ·.il "' ., "q~' "~l,." 0/), 1",:\i~/'(\uWI~, -1l®! ,.;~ ~ ')rt1i';J 11\. (lll;gZi~jj. "I ;'),'ir ~,pf'~t?~
29-Nov-99 0
15-Mar-00 21.8
2-Sep-00 102
29-Nov-00 107 ND
26-Mar-01 116 ND
20-Jun-01 180 ND
20-Sep-01 180 0.35
7-Nov-01 180 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-Noy-04 120 ND
16-Mar-05 10.0 ND
25-May-05 <1 NA NA NA 0.2 NA
31-Aug-05 1.1 <1 1.7 <1 <0.1 NA
30-Noy-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-Noy-06 <1 <1 <1 <1 <0.1 40
28-Feb-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
1O-0ct-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
10-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
<1 <1 <1 <0.1 57
9-Jun-1O <1 <1 <1 <1 <0.1 42
ll-Aug-lO <1 <1 <1 <1 <0.1 45
5-0ct-1O <1 <1 <1 <1 <0.1 46
16-Feb-ll ND ND ND ND ND 52
25-May-ll ND ND ND ND 0.1 45
16-Aug-ll ND ND ND ND 0.1 46
~,~~r:~~~I~~d rlttt~i60~;'.'.>">" lWeifi'-. Im'~~1!4!~
:filii .. .. 0\10:;J~~ '''If iii' 'a IIOmel& Ii' Jj!il~~ .; .' ., e1!r,ae OPl e· ,. "I~ ( " @.~¥j , .. i U ',iii." U ~ m , ~uiffl,)· ';~;"r{ jljj< 1\ Ll!;I,Y;j,~§i'~qgil'~ii',r"Jtl . ~j~.~ '~U " ,~~\;;;, ",''.i "', \\ll";~
20-Dee-99 4.2
15-Mar-00 1.9
2-Sep-00 14.2
29-Nov-00 39.4 ND
27-Mar-Ol 43.6 ND
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
17-Sep-04 39.0 0.81
17-Nov-04 26.0 1.2
16-Mar-05 3.8 1.3
25-May-05 1.2 NA NA NA 1.3 NA
31 -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-Jul-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
15-Aug-07 9.5 <1 <1 <1 1.8 38
10-0et-07 8.7 <1 <1 <1 2 40
26-Mar-08 1.3 <1 <1 <1 2.1 35
25-Jun-08 1.0 <1 <1 <1 2.3 35
10-Sep-08 <1 <1 <1 <1 2.79 28
15-0et-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
15-Sep-09 <1 <1 <1 <1 2.5 30
lilt· ' u, '1r~" • '. "';~.ilI\oJl\' ~ ,',' ~~ M.~~~!' ,,; '\<i,' .~C' fP, 1rW4' ~O N C1110 . ,ffi" 'r.r ' '&llll ,it I 'lhrometllane-Pl1ill'G:lk Nittlate:" lClllovide.'
". " , . ~1i,g7,!! I" I • '~ug/.l) '~'~ 1 ~mg4", ~m~1) , ~\'i" ,,-:~i"'fi! ~ ,*', eti,ac om e "" 0 ,v. ''.;~i: ,.ill: fJr~~".if~Ii' " ;,~ k'; .. ,f.t:~~i;" ~!~b: 1~~'",~:tIYi\( U:gtt~!.'I!!, ' :I~~t " ',1~, "~iJ, ;J';, ' -t~1 , ,"ii'" ~'~.illf><I""" '!;II',; ,,.;.1
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-05 110 <2.5 6.2 <2.5 1.1 NA
1-Dec-05 300 <2.5 <2.5 <2.5 3.3 NA
9-Mar-06 190 <5 <50 <50 2.4 50
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-07 350 <1 <1 1 5.1 54
15-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
25-Jun-08 720 <1 <1 1 9.91 58
10-Sep-08 680 <1 <1 1 9.23 51
15-0ct-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
15-Sep-09 910 <1 <1 1 8.1 51
22-Dec-09 300 <1 <1 <1 3.5 51
3-Mar-1O 460 <1 <1 <1 5 49
lO-Jun-lO 220 <1 <1 <1 1.6 42
12-Aug-1O 100 <1 <1 <1 0.8 38
13-0ct-l0 1100 <1 <1 <1 11 52
23-Feb-11 620 ND ND ND 9 62
I-Jun-11 280 ND ND ND 3.3 42
17-Aug-ll 180 ND ND ND 1.9 41
17-Aug-ll 820 ND ND ND 7.1 48
f~ ~;~~ ~,,~~>,),~.~a~6o~]lr'~·'·-~r~e1~11r tff '" , 1'W4 ' j ,p hlollOf ... n\\ "iI1 i 'hi ' "d romelh Dhl I IIf1lr2ijj [l810nl\' . , " . e raG OF) e I .I . . . *
, . I €uwH;~~~ , ~~,~ lw~ i'~ugtl9 I '/ ~Ii1~~' g!tl~ rt11 1.;41,,', .'i1l};t :!, .~;}·fJ;: .1,.~'~l" ;", ~u: " ~i~~ i I ,,; . I '" w' . ~u 1, . '!l'\;~~~ij .. . ., fit " ,I
12-Sep-02 2 2,S4
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.S8
22-Jun-04 0 1.4
17-Sep-04 0 1.24
17-Nov-04 0 1.S
16-Mar-OS 0 1.4
2S-May-OS <1 NA NA NA 1.6 NA
31-Aug-OS <1 <1 S.8 <1 1.S NA
I-Dee-OS <1 <1 1.9 <2 1.4 NA
9-Mar-06 <1 <1 2.6 <1 1.3 19
14-Jun-06 <1 <1 1.4 <1 1.4 16
20-Jul-06 <1 <1 <1 <1 1.4 16
8-Nov-06 <1 <1 <1 <1 1.4 16
28-Feb-07 <1 <1 <1 <1 1.S 16
27-Jun-07 <1 <1 <1 <1 I,S 18
IS-Aug-07 <1 <1 <1 <1 1.4 29
1O-Oet-07 <1 <1 <1 <1 1.4 16
26-Mar-08 <1 <1 <1 <1 1.6 16
2S-Jun-08 <1 <1 <1 <1 2.69 19
10-Sep-08 <1 <1 <1 <1 2.6S 18
IS-0et-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
IS-Sep-09 <1 <1 <1 <1 S.1 22
16-Dee-09 <1 <1 <I <I 3.6 23
23-Feb-1O <I <1 <1 <1 4 22
8-Jun-1O <I <1 <1 <I 11 29
lO-Aug-lO <I <1 <1 <I 9 3S
S-Oet-lO <1 <1 <1 <I 8 31
IS-Feb-II ND ND ND ND 6.S 31
2S-May-l1 ND ND ND ND 7 32
16-Aug-11 ND ND ND ND 6.8 31
1~~~Vlilrfif,'r,,~ ",~~1'~,,~> I~NI~ifelt. ~'. ~ •. , 'W oof. . hi • d '~ (. CliIorom~!;~e "~~~i' Ie €hlomde . , -ac OFl e ' . , • ' . 1:1 m e' If' ", ~ifAif' .', J :W' ~/ • ,~UgtIl :,,~ , il):' . 9 "·I~'1lQm~~ .,,, .. ,11, ,O'!N~ '4f I ~~~. . 1I11 ,'\ ff,.' ,,'r.,Iii;~J~I»;:
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
17-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 0.1 49
25-Jun-08 1300 <1 <1 53 0.56 57
10-Sep-08 630 <1 <1 24 0.24 44
15-0ct-08 1700 <1 <1 100 0.65 64
4-Mar-09 950 <1 <1 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 <1 40 2.3 60
17-Feb-1O 780 <1 <1 19 0.2 57
9-Jun-1O 1900 <1 <1 28 1.1 58
16-Aug-1O 2200 <1 <1 21 0.6 49
ll-Oct-lO 970 <1 <1 6.5 0.7 65
23-Feb-11 450 ND ND 3.6 0.5 57
31-May-ll 1800 ND ND 1.3 0.4 88
17-Aug-ll 720 ND ND 7.2 0.9 58
I'~~'_~t ~';'~' r Me~,) y " 'met . <31110 . 1l:W tli3€lllovide H II) lilo ( I'~t" !,u ' ')li!~;\!\V~[\ g , '~~ m ,,'~if";~,,'" "),~~ , ',~, !'iil' ':\ 1~,lif!: ' llU, Ill " ,,.~~ ,
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
31-Aug-05 85 <1 3.2 43 <0.1 NA
I-Dec-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
15-Aug-07 7.1 <1 <1 5.1 5.4 66
10-0ct-07 1.4 <1 <1 <1 4.4 69
26-Mar-08 11.0 <1 <1 26 ND 52
25-Jun-08 <1 <1 <1 <1 1.46 58
10-Sep-08 10 <1 <1 14 10.5 71
15-0ct-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 <1 <1 5.2 76
24-Feb-1O <1 <1 <1 <1 4.2 77
9-Jun-1O 2.1 <1 <1 <1 4.7 64
24-Aug-1O 4.3 <1 <1 <1 4.6 72
6-0ct-1O 3.0 <1 <1 <1 3.3 72
22-Feb-11 15.0 ND ND ND 7 86
26-May-ll 16.0 ND ND ND 5 81
17-Aug-ll 9.2 ND ND ND 1.7 63
I~l , ~i~~ '1~1j ,~f'~~n .,''' r ,:,' j\'f ,:"~; rMell\y.i;nef~ ~i'l~t·,' I TIW4 (21110 if t hi "(I hloFome~~ane",' om "(I ;~l 'NI ' ~mo
,-'c' lyi:F e raG 0111 e ~ gf,l,~ 'i~' d~~ e I j ~ ( ~~~ , t " ' , U ! ' ',,' lIn , 'm, ~ I/!'{;:~,j: ";'~'!r t~~,}, ",j";1!!,~;~iQ1Jl!m!~i~~ , .. 'k 1,1t~~",,.,,~1 ::\oA ,~1,~,,~1 .. ~,'n'; ~~~'~'~: .. ,
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
15-0ct-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-1O 69.0 <1 <1 <1 5.1 41
9-Jun-l0 29.0 <1 <1 <1 9 35
12-Aug-1O 29.0 <1 <1 <1 9 37
13-0ct-1O 30.0 <1 <1 <1 10 50
22-Feb-11 39.0 ND ND ND 10 52
26-May-l1 26.0 ND ND ND 9 36
17-Aug-11 29.0 ND ND ND 4.6 23
ll-Oct-lO 1200 1.3 <1 <1 2.7 146
17-Feb-ll 3400 17 ND ND 17 135
7-Jun-ll 4000 8.3 ND ND 12 148
17-Aug-ll 970 2.1 ND ND 3 148
I~U 1 ~'f\ ,,;~,,~, ,:~ I~()~I~~~;~~ i~i. ~ta~bon' " ,roW:';/m, I ':I,' ~ ,"", , 1;)~~etli~leqe~'~1 '~r ~ 1-,,' ~,~;l!t~th.n:., 11~~itp 'Ollioliide I';, lFW4-2Q fJ 1 .. ;Tetra~hlori<Ie\~ , 0h1OlriGe :":~~ I I;i!~mgtl);~ :s,,~;{, flJ' ~ .'~ Ir~~1 ,~U~~, ,:,~ Ii ~ ug(l~ I , 11(c~ "I!'\~u~n~!c'~ lV.' , " 'ilf Z~f~'i ~~'!,WI!((\.rgtIi5):i ~"!i:'il II~~} "' ,k11 :~~k:,'~11 i~~~ " ")ri.i'I' ,i"
25-May-05 39000 NA NA NA 10.1 NA
31-Aug-05 3800 <10 <10 <10 2.9 NA
I-Dee-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
1O-0et-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
15-0et-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-Dee-09 15000 14 <1 3 5.3 187
17-Feb-1O 3500 2.7 <1 3.2 2 179
14-Jun-1O 18000 11 <1 3.7 5.6 200
16-Aug-1O 15000 12 <1 2.2 5.3 196
11-0et-1O 24000 20 <1 5.5 4.6 203
23-Feb-l1 31000 27 ND 19 4.4 220
I-Jun-11 8100 10 ND 2.1 4.8 177
17-Aug-11 6800 7.3 ND 3.1 6.5 207
~,*'.trb~n~·I ·II'·~; M"~~~.~~ , e y: e . ' I ; .,'
, M" FoE . 'l t'r. 'hi . d J:Tomet ~(Jhlor,i l(.Q~ldm(;J~:
( " e ~~!M~rI, ~j ~ • 1). ~ \ll , . .' , "H., ~m~~~~ ,I.., '. I." ~~;",.{il ' , ) . j!):.1" ',." , . ' )t~Jl "I' .' " f,YI/ ; -ii'i.~~\'i: I ,
25-May-05 192 NA NA NA 14.6 NA
31-Aug-05 78 <5 <5 <5 10.1 NA
I-Dec-05 86 <1 1.0 <1 9.6 NA
9-Mar-06 120 <2.5 <2.5 <2.5 8.5 347
14-Juo-06 130 <2.5 <2.5 <2.5 10.2 318
20-Jul-06 106 <2.5 <2.5 <2.5 8.9 357
8-Nov-06 139 2 <1 <1 8.7 296
28-Feb-07 160 1.8 <1 <1 8.7 306
27-Juo-07 300 5.8 <1 <1 8.6 327
15-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-Juo-08 160 1.7 <1 <1 8.81 271
10-Sep-08 120 1.6 <1 <1 7.57 244
15-0ct-08 170 2 <1 <2 8.00 284
I1-Mar-09 180 <1 <1 <1 8.3 279
24-Juo-09 200 <1 <1 <1 8.1 291
15-Sep-09 140 <1 <1 <1 9.2 281
22-Dec-09 160 <1 <1 <1 8.4 256
25-Feb-1D 170 <1 <1 <1 8.4 228
lD-Juo-lD 210 1.2 <1 <1 12 266
12-Aug-1D 390 9.2 <1 <1 14 278
13-0ct-1D 200 1.2 <1 <1 7 210
22-Feb-11 230 1.2 ND ND 9 303
28-Juo-l1 290 4.8 ND ND 12 290
17-Aug-l1 460 6.3 ND ND 14 287
~~'~j'.M:~' ... "J .... rVhtJi".'''' • ~"i 'f~~~J . " ,'. . ," , , "e ~ ene I;:~~' '~hloFofpFml ", ChlOJ1Ometb '. , . I 'd i l:ll~Nitnlte" ,. I
111 ' lt~~~~~~ '. QIi' e ?,
4t 1j ,l,
-~l\~';;: . ,,~ I.~t' ~ '~~I1~IJl\~~i,~1 :~;¥ ~.1
I i ~ f ; , (1 P ~~ , I;': :~i! \ J .T" '.
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 39.1 519
25-Jun-08 1200 <1 <1 <1 41.9 271
10-Sep-08 6300 1.3 <1 <1 38.7 524
15-0ct-08 630 <2 <2 <2 36.3 539
11-Mar-09 390 <1 <1 <1 20.7 177
24-Jun-09 730 <1 <1 <1 20.6 177
15-Sep-09 2300 <1 <1 <1 40.3 391
29-Dec-09 380 <1 <1 <1 17 .8 175
3-Mar-1O 2200 <1 <1 <1 36.6 427
15-Jun-1O 540 <1 <1 <1 19 134
24-Aug-1O 340 <1 <1 <1 15 130
13-0ct-1O 340 <1 <1 <1 16 134
23-Feb-11 1300 ND ND ND 18 114
1-Jun-ll 210 ND ND ND 17 138
17-Aug-11 450 ND ND ND 15 120
, ~~;~~~'i "':~1 ~ EhI . ,,,niJ.:' . r ethllenfJ ." . ,on ,. ~.. ~I:~rm,. l~ 1 V' ~ • ..• ~ . oForne . a . 1 • f I:~~l I ,~I.Oli~~tf 1:~:;fHl:' ~ ga~ hIOV~~I\'1 . 'i,~;")~' ! '~~llWJ9 ~' I~~~~ ~ , ~~~~ii~
27-Jun-07 <1 <1 <1 <1 <0.1 47
15-Aug-07 <1 <1 <1 <1 <0.1 46
10-0ct-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
15-0ct-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
15-Sep-09 <1 <1 <1 <1 <0.1 43
16-Dec-09 <1 <1 <1 <1 <0.1 37
24-Feb-1O <1 <1 <1 <1 <0.1 45
8-Jun-1O <1 <1 <1 <1 <0.1 40
lO-Aug-lO <1 <1 <1 <1 <0.1 40
5-0ct-1O <1 <1 <1 <1 <0.1 34
16-Feb-ll ND ND ND ND ND 44
25-May-11 ND ND ND ND ND 44
16-Aug-ll ND ND ND ND ND 41
2.2 <1 <1 29 791
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
15-Sep-09 1.4 <1 <1 <1 30.7 618
17-Dec-09 1.2 <1 <1 <1 28.3 1080
25-Feb-1O 1.3 <1 <1 <1 33.1 896
9-Jun-1O 1.7 <1 <1 <1 30 639
24-Aug-1O 1.8 <1 <1 <1 31 587
6-0ct-1O 1.4 <1 <1 <1 31 522
17-Feb-ll 1.8 ND ND ND 31 1100
26-May-ll 1.1 ND ND ND 35 1110
17-Aug-ll 1.7 ND ND ND 34 967
TabL
Chloroform Concentration Trend Graphs
(ug/L)
o o o
I\.) o o o
.j:>. o o o
-..J o o o
CJ1 o o o
m o o o
w o o o o
Sep-99 +-----~----~------+-----~----~~--~~~--~
Dec-99
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 l __ -+_--t---t-~7
Mar-04
Jun-04 r--t----j~-_!-...~ Sep-04
Dec-04
Mar-05
Jun-05
Sep-05
Dec-05
Mar-06
Jun-06
Sep-06
Dec-06
Mar-O?
Jun-O?
Sep-O?
Dec-O?
Mar-08
Jun-08
Sep-08
Dec-08
Mar-09
Jun-09
Sep-09
Dec-09
Mar-10
Jun-10
Sep-10
Dec-10
Mar-11
Jun-11
~
:E .J::>. I o ~
o
""'" o ....... o
""'" 3
~
c
CD CJ)
tn Q)
::::J
CU >
E 10.. 0 -0 10.. .2
J: () ,....
I o::t 3: I-
o ~-/\ON-8 ~
6o-lnr-9
80-qe.::l-cc
90-l00-0~
90-fi"eV\l-8c
vo-uer-v~
co-des-~
66-0eO-9
f---+----I---+----+---+----+----+ 86-lnr-vc
o o o f'-.
o o o <.0
o o o l!)
o o o
"""
o o o C')
o o o
(\J
o o o
o
TW4-2 Chloroform Values
7000 ~-------------------------------------------------------------------------------------------,
6000 +---------------------------.---------------------------------------------------------------~
5000 +--------=~~~--_r~--~r_--r_~------------------------------------------------------~
4000 +---------~~--~r_------------~1_--=-~~--~----~----------------------------------~
-....I a,
:::I
-3000 +-______ ~~--------------------------------------------~~~--~~~~~~~L-~~~--~
2000 +------------------------------------------------------------4~------------~HL------------~
Data point represented corresponds
1000 to laboratory results. The value is
likely underestimated due to
laboratory error not considering the
dilution factor of 10.
0 co (j) .,.... C\I oo;;t l!) <D co (j) 0 C\I (j) (j) 9 0 0 0 9 0 ~ .,.... .,.... , (, 6. C :>, .D > ,
"5 0.. t5 '-
Cll Cll ctS ctS Cll ::J 0 0.. -, <t: 0 -, 4= .,;. 0 CJ? -, ~ LL I Z OJ I 6 <D C\I <b .,.... oo;;t ro N ro
C\I C\I
UI Q)
::l
CU >
E 10. 0 0 -0 10.
.2
J: 0
M I "=t I ~ I-
(1/6n)
In Q)
::::J
as >
E 10.
0 -0 10.
..2 .r:.
0
o::t I o::t
== I-
o ~-AoN-8~
60-lnr-9
80-Q8.:1-GG
90-PO-O~
so-keLl\l-8G
VO-U1:W-V~
GO-d8S-~
66-880-9
1---+---+--+---+---1----+---+--+----1-86-lnr-vG
o o L{)
"""
o o o
"""
o o L{)
CI)
o o o CI)
o o L{)
C\J
o o o C\J
o o L{)
o o o
o o L{)
o
U)
CI> :::l
co >
E "-0 -0 "-0
.c: 0
Lt)
I o::t 3= I-
...------.,...---,-----"T""----,..---'----.,...---,..-----r G ~ -JdV-~
0~-AON-8 ~
60-lnr-9
80-q8.::1-GG
90-l00-0 ~
90-k81/\1-8G
VO-UBr-V~
GO-d8S-~
66-080-9
I-----l----I---+----f----f----I----+ 86-lnr-vG
o
LO C<)
o o C<)
o
LO C\J
o o C\J
o LO o o o LO
o
o
I\) o o
~ o o
(ug/L)
(j) o o
co o o
o o o
-'-
I\) o o
07124/98 +I----I-----j-----j-----t----+-----j
12/06/99
04/19/01
09/01/02 +
01/14/04 l \
05/28/05 " \
~ \
10/10106
02/22/08
07/06/09
11/18/10
04/01/12 .L ___ -..I. ____ '"-___ ....i-___ --'---:--__ --', ___ ----'
-t :E ,J::Io I en
0 :::r
0' .,
0 -0 .,
3
< Q)
I: CD en
en G> ::::s ca >
E J..
0 -0 J..
.2
J: 0 ..... I 'I:t
== I-
O~-I\ON-8~
60-lnr-9
80-q8::1-GG
90-PO-O~
90-AB l/IJ-8G
VO-UBr-V~
GO-d8S-~
66-:::>80-9
1------+-----1-----+-----1-----+-----+ 86-lnr-vG
o o o (0
o o o L{)
o o o '<t
o o o C')
o o o C\I
o o o
o
tn Q)
::::J
C'CS >
E ...
0 -0 ...
.£!
J:
()
CX)
I 'II:t 3: I-
. ....,....--,.--:....-..-.,.---.r-----,.--....,---,.....---,..----.-G ~ -JdV-l
o ~ -l\oN-8 ~
60-lnr-9
80-Q8.:l-GG
90-PO-O~
90-keV\l-8G
VO-UBr-V~
GO-d8S-~
66-:::J80-9
I---+--+---I----I---\----!----I---+--+---+ 86-lnr-vG
o o L()
o L()
"<t
o o "<t
o L()
C')
o o C')
o L()
C\J
o o C\J
(1/6n)
o L() o o o L() o
f/)
Q) ::s
ii >
E "-0 -0 "-.Q
J: 0
C')
I o::t
== t-
,...-----,------,----..,.--'--,-----,.------,-----..-c ~ -JdV-~
O~-AON-8 ~
60-lnr-g
80-q8,:1-CG
9O-PO-O~
so-liell\l-8(
170-uer-17 ~
CO-d8S-~
66-080-g
1----+----+----I----+----f-----+----1--86-lnr-17c
o <.0 o Li)
(1/6n)
o CI) o C\J o o
UJ Q)
::l
C'CS >
E lo. 0 -0 lo. .2
J:
0
0 ,....
I o::t 3= t-
r-----r---.-----r----..,.-:---,-------r--'-G ~-Jd'v'-~
60-lnr-g
80-qa.:l-GG
9O-PO-O~
so-kell\l-8G
Go-das-~
1-----+----1-----1----1-----+-----1----+ ~O-Jd'v'-6 ~
o o '<t
o o C\J
o o o
o o CO
o o c.o
o o '<t
o o C\J
o
In Q)
:::J ca >
E lo.
0 -0 lo.
..2 J:
(.) ,.... ,....
I o::t 3: I-
o ~-AoN-8 ~
60-lnr-g
80-qa::l-GG
9O-lOO-O~
so-keVIJ-8G
vo-uer-v~
GO-das-~
\-----4----+----+---+----+----+----+ ~O-Jd'V-6 ~
o o o I"-
o o o (!)
o o o U")
o o o '<t
o o o C')
(1/6n)
o o o C\I
o o o
o
If) cu :::s m >
E 10. o -o 10. o
J: ()
C\I ,...
I ~ I-
o
C\J
LO c:i
~
.~
.~
o c:i
o ~-l\oN-8 ~
60-lnr-9
80-qa.::l-GG
90-PO-O~
so-kell\l-8G
VO-Ul:W-V~
Go-da8-~
~O-Jd'v'-6 ~
Sep-02
Dec-02
Mar-03
Jun-03
Sep-03
Dec-03
Mar-04
Jun-04
Sep-04
Dec-04
Mar-05
Jun-05
Sep-05
Dec-05
Mar-06
Jun-06
Sep-06
Dec-06
Mar-07
Jun-07
Sep-07
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CSV Transmittal Letter
Kathy Weinel
From:
Sent:
To:
Cc:
Subject:
Attachments:
Dear Mr. Lundberg,
Kathy Weinel
Wednesday, October 19, 2011 12:29 PM
'[e-mail]'
Jo Ann Tischler; David Frydenlund; Jaime Massey
Transmittal of CSV Files White Mesa Mill 2011 03 Chloroform Monitoring
C11080835.CSV
Attached to this e-mail is an electronic copy of laboratory results for chloroform monitoring conducted at the White
Mesa Mill during the third quarter of 2011, 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
TabN
Disinfection Byproducts -Trihalmethanes
'-~.-------------------0-----
&m\e-"=--
Basic Information about Regulated Drinking Water Contaminants
You are here: Water "Orinking Water" Drinking lI'iater Contaminants -Basic Information about Regulate<! Drinking Water Contaminants" Basic Information aCOlltOisinfeclion
Byproducts in Drinking Water: Total Tn'halomeltt.ane5, HaloaceticAcids, Bromate, and Chlorite
Basic Information about Disinfection Byproducts in Drinking Water: Total
Trihalomethanes, Haloacetic Acids, Bromate, and Chlorite
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To protect drinking walerfrom disease--causing organisms, or pathogens, water suppliers often add a disinfectant. such as chlorine, to drinking water. However, GlSinfection
practices can he ccmpffca!ecl because certain microbial pa!l:ogens, suc.~ as Cryptosporidium. are highly resis'.ant to Iladilional disinfection practices. Also, disinfectants
themselves can react with naturaJ{y-oc.."tJrring materials In the water to form byprocucts, which may pose heglth risks.
A major challell{le fOrwater suppliers is how to control and nrni! the risks from pathogens and alSinfeclion byprcdW.s. It is important to provide protection from pathogens 'liMe
simultaneously minimizing health risks to !he popu/alion from disinfection byproducts. For more infcrmaGcn. see fact sheets on Pathogens and Indicators and Disinfectants.
• 'J1J118f m.7infhd!oiJ I{vproolld, d'oe..~ EPA (~!lurare. hoVi 2r~ !hpv furmecf and wh?1 ,,!re h!!ir health ,.,{f2fti; in f!rtJL~JlO-'IIf!ter at ~-e:3 above 'hi! maximum ccnrnminanJ /evel?
• 'Attlrlt.3t-""-EPN.:l drInHrio w:a!er fOOuintTcnll {er dmfr.fedion hyc~u~
• How willi know if disinfection bvorcducts are in my drinking waler?
HoVl will disinfection byproducts be removed &urn mv drinking water?
• How do I !earn more aboyt my drinl<jng waler?
What disinfection byproducts does EPA regulate, how are they fanned, and what are their health effects in drinking WOlter at levels allove the maximum
contaminant level?
Disinfection Bypraduct (Chemical Abstract
Service Registrl Number)
Total Trihalomethanes
Bromodichforomelhane (75-27-4)
Bromofolm (l5-2$2j
Dibromochloromethane (124-48-1)
Chloroform (07-68-3j
Haloac .. tic acids:
Dich/oTOacelic acid (79-4U)
Tricl1/oroace!ic acid (78-03-9)
Chlorcacetic acid (l9-11-8j
8romoacelic acid(79..fJ8-3)
Dibromoace/ic acid (IJ31-64-1j
Bromate (1554145-4.
Chlorite (7T51l-19-Z)
How Is it ronne<i7
T n1tafomethanes occur when nawraily-occurring
organic and inorganic materials in the water react
wifil the disinfectants, chlorine and chloramine.
Haloacetic acids occur when naturaJ~J-C"..curr",g
organic and morganic materials in the waler react
with tlte disinfectants, chlorine and chloramine.
Bromate occurs when bromide in the water reacts
wi'" the QlSinfectant. ozone.
Health Effects
Some people who drink water conlaining lotaillihaiomethanes in
excess of !he Mel over many years could experience iiver, kidney,
or central nervous system problems and increased risk of cancer.
Some people wllo drink water containing haloacelic acids in excess
of the MCl over many years may ha.e an increased risk of gelling
cancer~
Some peopl .. who drink water containing bromate in excess of file
Mel over many years may have an increased risk of getting cancer.
Some infants and yOUllg children who drink water containing chlorite
in excess of tile MCL could experience n .... rous system .ifeels..
Chlon1e occurs when chlorine dioxide breaks down.. Sirru1ar effects may occur in fetuses of pregnant women '/Vho drink
water containing chlorite in excess of me MeL Sollie people may
experience anemia.
This health effects language is not intended to catalog aU possible ileaJth effects for disinfection byproducts. Rather, it is inlended to inform consumers of some of the pOS!l1Die
heallh effed3 associar..d with disinfectiOll byproducts in dIinking water when the rule was ffnaflZed.
What are EPA's drinking water regulations for disinrection byproducts?
In 1974, Congress passed the Safe Drinking Water Act This Jaw requires EPA to determine the level of contaminants in drinking water at which no adverse health effects are
Ilkely 10 occur. These non-enforceable health goals, llased solely on possible health risks and exposure over a lifefime, with an adequate margin of safety. are caUed maximum
contaminant level goals (MelG). Contaminants are any physical. chemical, biological or radiological substances or mailer in water. EPA sets MClGs llased on the best
available $Oie.nee to prevent potential healll1 problems..
Based on the MelG, EPA sets an enforceable regulation called a maximum contaminant fevet {Mel}. MeLs are set as close [0 the health goals as possible, considering cost.
benefits and the abmty of pubfic water systems to detect and remove contaminants using suitable treatmenl tectlnologies. Mels fer disinfection byproducts are set at the
foRewing levels:
http://water.epa.gov/drink/contaminantsibasicinforrnationldisinfectionbyproducts.cfin 10115/2010
Disinfection Byproduct
Total Trihalomethanes
Bromodichlorometilane Zero
Bromoform Zero
DibromochkJrometilane 0.06 mgll ()f 60 pph
Chloroform 0.07 mgll or 70 pph
Ha!oacetic acids
Dichloroacelic acid Zero
Trichloroacetic acid 0.02 mg/L or 20 pph
Monochloroacetic ·acid 0.07 mgll or 70 ppb
Bromoacetic acid Re-aulaled with ihis group but has no MetG
Dibromoacetic acid Regulated with tilis group but has no MClG
Bromate Zero
Chlorite 0.80 mg/L or aeo ppb
0.080 mgll ()f 80 pph
(Sum of the coocentralioos of all live frihalomethanes) as an annual average
0.060 mgll or 60 pph
(Sum of the concentrations of all live haloace1ic acids) as an annual average
0.010 milJigta'llS per filer (mgll) or 10 parts per binlon (ppb) as an annual average
1.0 mgll or 1 part per million (ppm)
MCls are set as close to the health goals as possible, considering cost, benefits and the abilify of public Vlater systems to detect and remove conlaminants using suitable
lrea!rnent technologies. States rray set more stringent drinking water MCLGs and MCls for disinfection byproducts than EPA.
nle following drinking water regulations apply 10 disinfectaots and disinfection byproducts:
Slime ' Dim l\'!e!?!lls "rltl Dlsfnfe¢.f'''' Syc,d.:it:ct& Rule ISla"e t DBPHDecember 16, 1998}
The Stage 1 Disinfec!anls and Disinfection Byproducls Rule reduces exposure to disinfection I;yproducts·for cuslomers of community waler systems and norr lransient
non·communify systems, including those serving fewer than 10,000 Pflople, that add a disinfectant 10 tile drinking water duP.'lg any part of the Irealment precess.
Stage 2 Disinfecrants and Disinfection Byproducts Rule /SIage 2 PBP} (December 15, 2005)
Slage 2 PSP rule builds upon "artier rules that addressed disinfeclion byproducts 10 improve your drinking water quailly and provide additional public health protection
frcm disinfactlon IP;prcd!Jcts.
The Safe Drinking water ... oct requires EPA to periodicaJly review the national primar/ drinking water regulation for each contaminant and revise the regulation, rr appropriate,
based on new scientific dala. EPA Vim include the Disinfectants and Disinfection Byproduc'<s rules in a future review cycle.
• More information an the Sbc Year R-e:vlew ot Drinkfna W-a:ter Standarr.s
How wlll I know if disinfection byproducls are in my drinking water?
When routine monitoring ,ndicaies that disinfection byproduct !evels are above the MCl, your water supplier must take steps to reduce lIle amount of disinfection byproductsso
that they are below that level. Waler suppliers must nOliff their cuslamers as soon as practical, but no taler than 30 days after the system learns of the violation. Additional
actions, suoh as providing alternative drinking water suppHes, may be required to prevent serious risks to public health_
See EPA"s public notification requirements for DubHe water svstems_
How will disinfection byproducts be removed from my drinking water?
Water systems tilat use surface water or ground water under the direcl influence of surface water and use conventional fiIlratfon treatment are required to remove specified
percentages of organic materials that may raact with disinfectants to form disinfecfion byprcducts, priOT to disinfection. Other CO<ltrol strategies include mcdffication of disinfection
practices in a manner that still provides adequale protection against pathogens.
How do I learn mont about my drinking water?
EPA strongly encourages people to learn more about their drinking water, and to support local efforts to protect the supply of safe dcinkir.g water and upgrade tlte communiP!
water system. Your water bm or telephone bOok's government listings are a good slartir.g point for local information,
Contact your weter utiliiy_ EPA requires all cammuniiy water systems to prepare and deWier an annual consumer confidence report (CCR) (sometimes called a water quaITty
report) for their cuslomers by July 1 of each year. If your water provider is not a community water system, or if you have a private water supply, request a copy from " nearby
community water system.
The CCR summmjz"'" intonnarfon ffimlrding sOl/S'S used fl.e. rivgm, fakes, reservot!':>, or aqlliferst, dB!el:ted· contaminants. rompliaru;e <lnd edlJCa!io<!al ~n.
• Some water suppliers have posted !heir annual reports on EPA's Web Sile.
other EPA Web sites
• Find an answer or ask a question about drinking water contaminants on EPA's Qlleslion and Answer web site or call EPA's Safe Drinking ,,"Valer HoDine at (800) 426-
4791
EPA's Microbials and Disinfec!!on B'(prodw;!s Web site
Stage 2 DisinfectanllOjsinfectjpn Bvoroduc!s Rule
Slace 1 OisinfectanliDisinfeciion Byproducts Rule
http://water.epa.gov/drink/contaminants/basicinforn;tationldisinfectionbyproducts.cfm 10115/2010
• EPA'" Enyjrofac!s IGR Well stte
• OIsinfectioo Byproduct Information
• Disinfection Byproduc!J: A Reference Re!IOIlfCe
• Dl3infed!jjn BYDroduCl$ Heallb E[eeIs
EPA's Guidance Manyal Anern"ljye Q/!!jnfectanls and Oxjdants PDF
• EPA's Integrated Risk Information System
• EPA I1lS1ory 01 Drinking WaletTrealment PDF
• EPA OJjn!!jnq Waler Trea!met1! fact Sheet POf
Oth9r Federal Departments and Agencies
• Bromate
• (&nw" !or Ql!i1!as2 & Prg.ent{on C9/llrol'$ Natlo",,! In5lllu!e Iv< Og;uoational Safe" and f-i ... "Uh InlematioroJI Ch .... njg!! &'Vl"( Card fJ?r S<>dImn 8rrmlo
Chlorite
• ;'!genco, for Toxic $ubSl2nces lind OIsease Re<?ls!ry ToxFAO~_ Chlarfnt' Qimride and Chforile
Agency ~ot Toxic SUGt.lanr.{!!l1fm1 Qi.!'t.~s2 R?c""~N Toxfcoroofl.;.lJ Profile Chthrina tHqxm-eand Chlorite
las! updated oo/Aonday. Jur. ... 14. 2CJ10.
--0-----
http://water.epa.gov/drinklcontaminants/basicinformationldisinfectionbyproducts.cfin 10/15/2010
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Disinfection By-Products
Trihalomethanes
.--~
------------.--------------------_ .. _------------------.-------_._--_._------... -.
Trihalomethanes (THM) are a group of four chemicals that are formed along with other disinfection by
products when chlorine or other disinfectants used to control microbial contaminants in drinking water
react with naturally occurring organic and inorganic matter in water. The trihalomethanes are
chloroform, bromodichloromethane, dibromochloromethane, and bromoform. EPA has published the
Stage 1 Disinfectants and Disinfection Bvproducts Rule to regulate total trihalomethanes (TTHM) at a
maximmn allowable annual average level of 80 parts per billion.
The four trihalomethanes (THM's) listed below:
Trichloromethane I CHCl3 I (chloroform)
I Dibromochloromethane IIcHCIDr2 1
I Bromodichloromethane II CHC1zBr l
I TribromoDlethane 16] (bromoform)
are all by-products of chlorination. They are Cancer Group B carcinogens (shown to cause cancer in
laboratory animals). Trichloromethane (chloroform.) is by far the most conhnon in most water systems.
Dibromochloromethane is the most serious cancer risk, (0.6 ~g!l to cause a 10-6 cancer risk increase)
followed in order by Bromoform (4 ugIl), and Chloroform (6 ug/l). Current regulations limit the
concentration of these 4 chemicals added together (total trihalomethane or TTHM levels) to 100 ug/l.
Treatment
THM levels tend to increase with pH, temperature, time, and the level of "precursors" present.
Precursors are organic material which reacts with chlorine to form THtVI's. One way to decrease TIfM's
is to eliminate or reduce chlorination before the filters and to reduce precursors.. There are more
http://www.wa.ter-research.netitrihalom.e~anes.htm 10/15/2010
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precursors present before filtration, so we want to reduce or eliminate the time chlorine is in contact with
this water. If some oxidation before filtration is required, an alternative disinfectant like potaSsimn
permanganate or peroxide could be considered. Note that this may not be an option ifprechlorination is
necessary to achieve required CT values.
The EPA has indicated that the best available technology for THM control at treatment plants is removal
of precursors through "enhanced coagulation". Enhanced coagulation refers to the process 0 f optimizing
the filtration process to maximize removal of precursors. Removal is improved by decreasing pH (to
levels as low as 4 or 5), increasing the feed rate of co~aulants, and possibly using ferric coagulants
instead of alum.
For point of use systems at homes, activated carbon filters are the most effective treatment. Reverse
osmosis units will also eliminate trihalomethanes.
Upcoming Regulations
The EPA is considering extensive revisions to the regulations covering disinfection by-products
(DBP's). The limit for TIRM's would be lowered to 80 ugJI, and three additional categories ofDBP's .
This standard will replace the current standard of a maximum allowable annual average level of 100
parts per billion in December 2001 for large surface water public water systems. The standard will
become effective for the first time in December 2003 for small surface water and all ground water
systems
Halo acetic acids (monobromoacetic acid, dibromoacetic acid, monocbloroacetic acid, dichloroacetic
acid, and trichloroacetic acid) are byproducts of chlorination similar to THM's. An MCL for total
haloacetic acids of 60 ugll is expected. Excessive levels can cause nervous system and liver effects.
Chlorite is to be regulated with an MCL set at 1 mg/l. Excessive levels can cause hemolytic anemia.
Bromate, the other newly regulated DBP 1 is a concern only for systems using ozone. An MCL of IO
ug/l is expected. Excessive Levels causes gastrointestinal, kidney, and hearing effects.
Stage 1 Disinfectants and Disinfection Byproducts Rule
More Comprehensive Information on Trihalomethanes
University of Florida
http://www.agen.ut1.edul'''''Wq/thm/
Canadian Website
http://www.watermilLcom.aulchlorine.htm
Water Qualitv Help Guides
Glossary of Water Temrinology
Note: ugll is used as an abbreviation for microgramslliter or parts per billion.
Note: THM's are not a major concern for treating groundwater wells with low organic matter content.
TH.iYf's fonn through the partial oxidation of organic material, therefore it is a more important concern to
http://www.water-research.netltrihalomethanes.htm 1011512010