DRC-2010-004828 - 0901a06880361ab6

DENISO
MINES
010-00482 6 Denison Mines (USA) Corp.
1050 17th Street Suite 950
Denver, CO 80265
USA
Tel: [phone]
Fax:[phone]
www.denisonmines.coni
August 31, 2010
VIA FEDERAL EXPRESS
Mr. Rusty Lundberg
Executive Secretary,
Utah Radiation Control Board,
Utah Department of Environmental Quality,
Division of Radiation Control
195 North 1950 West
Salt Lake City, Utah 84114-4820
Dear Mr. Lundberg:
Re: State of Utah Radioactive Material License No. UT1900479
White Mesa MUl, Blanding, Utah
Semi-Annual Effluent Monitoring Report for Period
January 1, 2010 through June 30,2010
As required by Utah Administrative Code, R 313-24-4 (incorporating by reference 10 CFR 40.65
(subpartl)), and License Condition 11.3 A of State of Utah Radioactive Materials License No.
UTI900479, enclosed is the Semi-Annual Effluent Monitoring Report for the White Mesa Mill
for the period January 1, 2010 through June 30, 2010.
If you have any questions regarding this report, please contact the undersigned at (303) 389-
4132.
Yours very truly,
DENISON MINES (USA) CORP.
Jo Ann Tischler
Director, Compliance and Permitting
cc Ron F. Hochstein
Harold R. Roberts
David C. Frydeniund
David E. Turk
Katherine Weinel
OENISONI)~~
MINES
August 31,2010
VIA FEDERAL EXPRESS
Mr.Rusty Lundberg
Executive Secretary,
Utah Radiation Control Board,
Utah Department ofEnvironmental Quality,
Division ofRadiation Control
195 North 1950 West
Salt Lake City,Utah 84114-4820
Dear Mr.Lundberg:
Re:State of Utah Radioactive Material License No.UT1900479
White Mesa Mill,Blanding,Utah
Semi-Annual Effluent Monitoring Report for Period
January 1,2010 through June 30,2010
Denison Mints (USA)Corp.
1050 17th SltH~Sulto 950
Denver,CO 50215
USA
Til:303628·n95
FIX:303 389-4125
www.d.nllonmlnll.com
As required by Utah Administrative Code,R 313-24-4 (incorporating by reference 10 CFR 40.65
(subpartI»,and License Condition 11.3 A of State of Utah Radioactive Materials License No.
UTl900479,enclosed is the Semi-Annual Effluent Monitoring Report for the White Mesa Mill
for the period January 1,2010 through June 30,2010.
If you have any questions regarding this report,please contact the undersigned at (303)389-
4132.
Yours very truly,
DENISON MINES (USA)CORP.
Jo Ann Tischler
Director,Compliance and Permitting
cc Ron F.Hochstein
Harold R.Roberts
David C.Frydenlund
David E.Turk
Katherine Weinel

White Mesa Uranium Mill
Radioactive Materials License UT900479
Semi-Annual Effluent Monitoring Report
(January through June, 2010)

Prepared For:
Utah Department of Environmental Quality
Division of Radiation Control

Prepared by Denison Mines (USA) Corp.
1050 17th Street, Suite 950
Denver, CO 80265

August 31, 2010
i

TABLE OF CONTENTS

Section Page

1. Introduction………………………………………………………………… 1
2. Environmental Air Particulate Sampling
2.1 Program Overview……………………………………………………… 2
2.2 Sampling Protocol and Analytical Results……………………………… 2
2.3 General Observations…………………………………………………… 3
2.4 Site Specific Sampling Data…………………………………............... 4
2.5 Radon-222……………………………………………………………… 6
3. External Radiation (Direct Gamma)……………………………………..... 7
4. Vegetation Samples………………………………………………………... 7
5. Stack Sampling…………………………………………………………….. 8
6. Surface Water Monitoring…………………………………………………. 10
7. Soil Sampling………………………………………………………………. 10
8. Meteorological Monitoring………………………………………………… 10
9. Signature…………………………………………………………………… 10

ATTACHMENTS

Attachment Description
A……………………………………….. Sampling Station and Site Map
B………………………………………... Environmental Air Particulate Sampling
Tab 1…………………………………. BHV-1 Air Sampling Graphs and Data Table
Tab 2…………………………………. BHV-2 Air Sampling Graphs and Data Table
Tab 3…………………………………. BHV-3 Air Sampling Graphs and Data Table
Tab 4…………………………………. BHV-4 Air Sampling Graphs and Data Table
Tab 5…………………………………. BHV-5 Air Sampling Graphs and Data Table
Tab 6…………………………………. BHV-6 Air Sampling Graphs and Data Table
C……………………………………….. Air Particulate Laboratory Results and
QA/QC
D……………………………………….. Air Particulate Loading Graphs and
Supporting Data
E………………………………………... Environmental Gamma (TLD) Graphs and
Supporting Data
F………………………………………... Vegetation Graphs, Data Table, Laboratory
Results and QA/QC
G……………………………………….. Stack Sample Laboratory Results
H……………………………………….. Surface Water Graphs and Field Data Sheets
I………………………………………… Soil Sample Graphs, Data Table, Laboratory
Results and QA/QC

1
WHITE MESA URANIUM MILL
SEMI-ANNUAL EFFLUENT REPORT, JANUARY THROUGH JUNE, 2010

1. INTRODUCTION

The White Mesa Mill (the “Mill”) has established monitoring programs to evaluate
compliance with effluent limitations and to assess the potential for release of radioactive
material into the local environment. These monitoring programs were developed and
implemented at the time of Mill construction, operated with appropriate adaptation over
time, and are consistent with the Mill’s State of Utah Radioactive Materials License No.
UT1900479 (the “License”) and guidelines developed by the United States Nuclear
Regulatory Commission (“NRC”) (NRC Regulatory Guide 4.14, Radiological Effluent
and Environmental Monitoring at Uranium Mills-Rev. 1, ML003739941), 1980).

Under these programs, the Mill monitors the following environmental media and
conditions:

a) Airborne particulate radionuclide concentrations obtained from the following
sampling stations:

• North, east and south of the Mill Site: BHV-1 and BHV-2 (north), BHV-5
(east), and BHV-4 (south). BHV-1 serves as a surrogate for the nearest
resident (BHV-1 is approximately 1.2 miles north of the Mill, but
approximately 0.4 miles closer to the Mill than the nearest resident);
• A background location distant to and west of the Mill (BHV-3), which
was monitored for airborne particulate up until November, 1995, at which
time background was established, but is no longer monitored for air
particulate; and
• A station specifically requested by the White Mesa Ute Community south
of the Mill Site (BVH-6);

a) External (direct) gamma radiation measured at air monitoring stations BHV-1,
BHV-2, BHV-3, BHV-4, BHV-5 and BHV-6;

b) Vegetation at three site periphery locations, for uptake of radiation;

c) Stack release rates from the Mill’s air emissions sources;

d) Surface water at Cottonwood Creek and, when flowing, Westwater Creek, both
located west of the Mill;

e) Soil radionuclide activity obtained near the air particulate monitoring stations,
during the third quarter of each year; and

2
f) Ground water (up and down gradient) of the Mill facility.1

This semi-annual effluent report provides the results of the specific monitoring and
sampling activities that were undertaken during the subject reporting period.

2. ENVIRONMENTAL AIR PARTICULATE SAMPLING

2.1 Program Overview

The environmental airborne particulate monitoring program at the Mill utilizes five air
sampling stations. Four high-volume continuous air sampling stations (BHV-1, BHV-2,
BHV-4, and BHV-5) are required by the License. These sampling stations serve as
sentinels for airborne particulate which could potentially emanate from the Mill site. In
addition to its general site monitoring function, BHV-1 also serves as a conservative
surrogate for concentrations at the nearest resident, because it is located approximately
1.2 miles north of the Mill just south of the nearest resident but between the Mill and that
resident.

With regard to background monitoring, the Mill previously operated a continuous high-
volume air sampling station (BHV-3) which was located approximately 3.5 miles west of
the Mill site. With the approval of NRC, this station (BHV-3) was removed from the
active air monitoring program in November 1995. At that time, NRC determined that a
sufficient air monitoring data base had been compiled at BHV-3 to establish a
representative airborne radionuclide background for the Mill. It should be noted,
however, that while air sampling was discontinued at this location, gamma measurements
and soil sampling continue to be collected at BHV-3.

In addition to the environmental air sampling locations described above, a sixth station
(BHV-6) was installed at the request of the White Mesa Ute Community. This station
began operation in July of 1999 and provides airborne particulate information in the
southerly direction between the Mill and the White Mesa Ute Community

2.2 Sampling Protocol and Analytical Results

Airborne particulate monitors are operated continuously at each of the high-volume air
sampling stations referenced above. Particulate sample collection filters are gathered by
site technicians weekly in accordance with the Mill’s environmental air sampling
procedures and are composited on a quarterly basis for laboratory analyses. The
collected filters are analyzed for Unat activity, Th-230 activity, Ra-226 activity, and Pb-
210 activity. Fugitive dust standards for the facility are limited by the Mill’s State of
Utah Air Approval Order, which sets a 20% visual opacity standard. The specific
locations of the Mill’s airborne particulate monitoring stations are depicted on the figure
entitled High Volume Air Monitoring Stations included as Attachment A. Station BHV-
1 Ground water sampling is reported separately pursuant to the Mill’s State of Utah Ground Water
Discharge Permit No. UGW370004, and is not included with this report.
3
3, which is no longer sampled for air particulate is located approximately 3.5 miles west
of the Mill facility and is not indicated on that Figure.

The analytical results of radionuclide particulate sampling for each monitoring station
operated during this January through June, 2010 reporting period are provided in
Attachment B under separate sampling station attachment tabs (Tabs 1-6). Each Tab
contains graphical illustrations of the radionuclide concentrations in log-scale
presentation format. The graphs display reported data over time since the 1981 inception
of the Mill’s environmental air particulate monitoring program. The actual analytical
results (and associated QA/QC information) reported by the laboratory are provided
under Attachment C. In addition to the analyses for radionuclides, particulate loading is
determined for each filter and composited as a quarterly mass-loading estimate for review
purposes only. Graphs showing particulate loading at each station for the first half of
2010 and the underlying data are included as Attachment D.

It should be noted that for graphical illustration purposes, values reported at zero, values
reported at less than the prescribed detection limit (< 1 x 10-16 uCi/ml) and missing values
were plotted as 1 x 10-16 uCi/ml concentrations. Where other “less than” values were
indicated (i.e., where detection limits for the data varied from 1 x 10-16 uCi/ml), the
detection limit concentration was utilized for plotting the data point. This graphing
convention is not utilized to formulate station average information, nor is it intended as a
precedent for data treatment. Rather, the intent is to provide a conservative viewable
depiction of site airborne radionuclide information. This is considered to be a
conservative approach because the actual concentration below the detection limit cannot
be determined and, as a result, the plotted point will be at the same or a higher
concentration than the actual activity concentration of the collected sample.

2.3 General Observations

The results of environmental air monitoring for this semi-annual period indicate that for
all radionuclides at all monitoring stations airborne radionuclide particulate activity
concentrations were well below regulatory Effluent Concentration Limits (“ECL’s”) and
the Mill’s ALARA goals, which are set at 25% of the ECLs.

It is noteworthy and expected that Pb-210 concentrations are elevated when compared to
the other parent radionuclide concentrations (i.e. U-nat, Th-230 and Ra-226). This
phenomenon is due to the well-established controlling effect experienced worldwide as a
result of the ubiquitous presence of radon in the earth’s atmosphere. Accordingly,
elevated Pb-210 presence in disequilibrium with parent radionuclides measured here is
not associated with uranium milling operations. Radon-222 emanates as a decay-chain
progeny of the Ra-226 contained in the soil of the earth’s crust and is dispersed generally
throughout the earth’s atmosphere. The electrically charged short and long-lived decay
products of Radon-222 attach to ambient dust particles found naturally in the atmosphere
and are carried with the air. Pb-210 is the longest lived of these decay products and is the
decay product of the shorter-lived radon progeny. As such, it accumulates as an electrical
attachment on the natural ambient dust in the atmosphere and is generally measured at
4
elevated activity when compared to local decay-chain parent radionuclide activity,
regardless of uranium milling activity. At the Mill’s BHV air monitoring stations, all
dust (ambient natural and mill derived) is collected by the sample filter. Because of the
natural elevation of Pb-210 accumulated as an attachment to the naturally occurring
ambient dust particles collected by the air sampling equipment, Pb-210 is commonly
elevated and in disequilibrium when compared to parent radionuclide activity, regardless
of the Mill’s presence. By way of illustration, average ground-level concentrations have
been reported for selected States (NCRP Report 94, 1992) and are summarized in Table 1
below, demonstrating elevated Pb-210 activity where no uranium milling operations are
located nearby. Pb-210 activity concentrations can be expected to be even higher for
locations in the western U.S. where uranium ore bodies are commonly located. In April
1977, prior to Mill construction and Mill operations, air particulate Pb 210 was measured
at the Mill site to be 1.3E-14 uCi/ml (13.0E-3 pCi/m3)2

Table 1- NCRP Report 94-Global Pb-210 Concentration Example

State Pb-210 Concentration
uBq/M3 uCi/ml
California 600 1.6E-14
Illinois 1500 4.1E-14
Ohio 300 8.1E-15
Massachusetts 700 1.9E-14

2.4 Site Specific Sampling Data

The results of airborne particulate monitoring for the period (without background
subtraction) are provided by sampling station and radionuclide in Tables 2 through 5
below. Along with these data, the tables present comparative ECL’s and the ECL
percentage measured at each of the monitoring stations sampled during the period. A
review of these data supports the conclusion that airborne particulate is well controlled at
the Mill. In all cases, the measured activity concentrations were well within the ECL, as
well as the Mill’s ALARA goal (i.e. 25% of the ECL). It should also be noted that the
analytical laboratory maintained Lower Limits of Detection consistent with NRC
Regulatory Guide 4.14 for this reporting period.

In fact, the data obtained since program inception in 1981 indicates that only one
individual quarterly measurement (Th-230 at BHV-5 for the 2nd Quarter of 1996) has
ever exceeded the ECL at the Mill. With regard to that particular single measurement,
while it is important to consider and evaluate an individual measurement exceeding the
ECL, for public dose estimation purposes it is the average annual concentration that is of
primary significance. In that instance, the average annual concentration of Th-230 for
BHV-5 in 1996 was well below the ECL. Data obtained since program inception in 1981
also indicate that, with very few exceptions, the gross (background inclusive)
measurements do not exceed the site’s ALARA goal (i.e. only nine of the several
2 See the Environmental Report, White Mesa Uranium Project, San Juan County, Utah for Energy Fuels
Nuclear, Inc. prepared by Dames & Moore, January 30, 1978, Section 2.9.1.1
5
thousand total gross radionuclide determinations to date exceeded the Mill’s self-imposed
25% ALARA goal).

Table 2- Air Monitoring Station Results U-Nat (Comparison to Limits) 1st and 2nd
Quarters 2010

Monitoring
Station
1st Qtr.
Result
(uCi/ml)
2nd Qtr.
Result
(uCi/ml)
Effluent
Concentration
Limit (ECL)
(uCi/ml)
Average
Percent
ECL
BHV-1 1.97E-15 1.58E-15 9 E-14 1.97E+00
BHV-2 5.47E-16 3.58E-16 9 E-14 5.03E-01
BHV-4 6.01E-15 2.33E-15 9 E-14 4.65E+00
BHV-5 4.78E-15 4.35E-15 9 E-14 5.07E+00
BHV-6 9.63E-15 3.62E-15 9 E-14 7.36E+00

Table 3- Air Monitoring Station Results Th-230 (Comparison to Limits) 1st and 2nd
Quarters 2010

Monitoring
Station
1st Qtr.
Result
(uCi/ml)
2nd Qtr.
Result
(uCi/ml)
Effluent
Concentration
Limit (ECL)
(uCi/ml)
Average
Percent
ECL
BHV-1 2.15E-16 4.71E-16 2 E-14 1.72E+00
BHV-2 1.42E-17 6.64E-17 2 E-14 2.02E-01
BHV-4 1.26E-16 7.29E-16 2 E-14 2.14E+00
BHV-5 3.73E-16 7.84E-16 2 E-14 2.89E+00
BHV-6 1.82E-16 3.94E-16 2 E-14 1.44E+00

Table 4- Air Monitoring Station Results Ra-226 (Comparison to Limits) 1st and 2nd
Quarters 2010

Monitoring
Station
1st Qtr.
Result
(uCi/ml)
2nd Qtr.
Result
(uCi/ml)
Effluent
Concentration
Limit (ECL)
(uCi/ml)
Average
Percent
ECL
BHV-1 3.27E-16 7.7E-16 9 E-13 6.09E-02
BHV-2 4.66E-17 9.90E-16 9 E-13 5.76E-02
BHV-4 1.34E-16 2.66E-16 9 E-13 2.22E-02
BHV-5 4.19E-16 1.05E-15 9 E-13 8.16E-02
BHV-6 2.06E-16 4.89E-16 9 E-13 3.86E-02

6

Table 5- Air Monitoring Station Results Pb-210 (Comparison to Limits) 1st and 2nd
Quarters 2010

Monitoring
Station
1st Qtr.
Result
(uCi/ml)
2nd Qtr.
Result
(uCi/ml)
Effluent
Concentration
Limit (ECL)
(uCi/ml)
Average
Percent
ECL
BHV-1 1.00E-14 4.07E-15 6 E-13 1.17E+00
BHV-2 8.24E-15 2.01E-15 6 E-13 8.54E-01
BHV-4 1.19E-14 3.27E-15 6 E-13 1.26E+00
BHV-5 4.78E-15 4.35E-15 6 E-13 7.61E-01
BHV-6 1.34E-14 4.30E-15 6 E-13 1.48E+00

2.5 Radon-222

Due to the unavailability of monitoring equipment to detect the new 10 CFR Part 20
standard, and with the approval of NRC, Radon 222 monitoring at BHV stations was
discontinued in 1995. Instead, Denison demonstrates compliance with these limits and
the requirements of R313-15-301 by calculation, authorized by the NRC and as
contemplated by R313-15-302(2)(a). A copy of the Technical Evaluation Report
evidencing such approval was enclosed with correspondence to the Division on July 28,
2008.

This calculation is performed by use of the MILDOS code for estimating environmental
radiation doses for uranium recovery operations (Strenge and Bender 1981) and more
recently in 2003 by use of the updated MILDOS AREA code (Argonne 1998). The
analysis under both the MILDOS and MILDOS AREA codes assumes the Mill to be
processing high grade Arizona Strip ores at full capacity, and calculates the
concentrations of radioactive dust and radon at individual receptor locations around the
Mill.

The MILDOS and MILDOS AREA codes calculate the combined Total Effective Dose
Equivalent (“TEDE”) from all relevant pathways, including both air particulate and
radon, at a number of locations including the nearest residence (the individual likely to
receive the highest dose from the licensed operation), approximately 1.6 miles north of
the Mill. These calculations reveal projected doses to the individual likely to receive the
highest dose from the licensed operations to be well below the 100 mrem regulatory limit
in R313-15-301(1)(a) for all pathways, including air particulate and radon, and well
below the ALARA goal of 10 mrem/yr for air emissions excluding radon as set out in
R313-15-101(4). MILDOS AREA modeling was recently conducted in support of the
Mill’s 2007 License Renewal Application, utilizing the MILDOS-AREA code (Version
2.20β), to estimate the dose commitments at various receptor locations for processing of
Colorado Plateau ore (0.25% U3O8 and 1.5% V2O5) and Arizona Strip ore (0.637%
U3O8). The process rate was assumed to be at full capacity of 730,000 tons per year (an
average of 2,000 tons per day) with an average uranium recovery yield of 94%. That
7
modeling showed a TEDE of 2 mrem per year at the nearest resident (3 mrem per year at
the nearest potential residence, being the location of BHV-1 at the northern property
boundary of the Mill site), which included the dose from all radionuclide sources,
including radon. The modeled dose from radon itself was therefore a fraction of TEDE
and well within the regulatory limits.

3. EXTERNAL RADIATION (DIRECT GAMMA)

Gamma exposure rate estimates were measured for the 1st and 2nd quarters of 2010
utilizing passive integrating devices, thermoluminescent dosimeters (“TLD’s”). These
dosimeters were located at each of the Mill’s high-volume air sampling stations (BHV-1,
BHV-2, BHV-4, BHV-5 and BHV-6) and at the designated background monitoring
station (BHV-3). Measurements obtained from location BHV-3 have been designated as
background due to BHV-3’s remoteness from the Mill site (i.e. BHV-3 is located
approximately 3.5 miles west of the Mill site). The results of the environmental TLD
measurements and semi-annual cumulative above-background data are provided in Table
6 below. In addition, measurement data obtained at these locations are graphically
presented at Attachment E to this report.

Table 6- Environmental TLD Measurements (Gamma)

Monitoring
Station
1st Qtr
Result
(mrem)
2nd Qtr
Result
(mrem)
1st Qtr
Result Less
Background
(mrem)
2nd Qtr.
Result Less
Background
(mrem)
Cumulative
Semi-
Annual
Estimate*
(mrem)
BHV-1 27.5 36.4 1.9 3.7 5.6
BHV-2 25.5 33.0 -0.1 0.3 0.3
BHV-3 25.6 32.7 0 0 0
BHV-4 24.5 33.1 -1.1 0.4 0.4
BHV-5 26.3 35.4 0.7 2.7 3.4
BHV-6 22.0 31.3 -3.6 -1.4 0

*Negative values treated as zero for cumulative dose

The results for this period indicate that above background measurements for stations
BVH-1, BVH-2, BVH-4, BVH-5 and BHV-6 are within regulatory limits. BHV-1 is at
the location of the nearest potential residence. The nearest actual residence is
approximately 0.4 miles north of BHV-1. The annual individual member of the public
limit is 100 mrem/yr for combined internal and external exposure.

4. VEGETATION SAMPLES

Vegetation samples are collected at three locations around the Mill property. The
sampling locations are: 1) northeast, 2) northwest and 3) southwest of the Mill facility.
The vegetation samples are collected during early spring, late spring and fall (i.e., the
growing seasons). Graphical log-scale presentation of the vegetation sampling results for
8
this reporting period, together with the analytical results reported by the Mill’s contract
laboratory (including QA/QC information) are included at Attachment F of this report.
The 1st and 2nd quarter data results are within the variation of previous sampling episodes.
Regarding lower limits of detection, all analyses indicated detected concentrations.

5. STACK SAMPLING

Under Section 5.0 of Tab 1.4 of the Mill’s Environmental Protection Manual, Revision:
DUSA-1, 2/07 (the “Environmental Protection Manual”) gas stack samples are collected
at the Mill in accordance with the calendar year schedule shown below:

Table 7 – Stack Sampling Requirements

Frequency Feed Stack (Grizzly
Baghouse)
Stack for
Yellowcake Dryer
Packaging
(Yellowcake
Baghouse)

Quarterly None If operating, U-nat If operating, U-nat
Semi-annually If operating, U-nat,
Th-230
If operating, U-nat,
Th-230, Ra-226, Pb-
210
If operating, U-nat,
Th-230, Ra-226,
Pb-210

The yellowcake dryer, yellowcake baghouse and grizzly operated during the 1st Quarter
of 2010. The grizzly operated during the 2nd quarter of 2010.

The yellowcake drying and packaging areas operated only sporadically during the last
month (June) of 2010. Due to operational problems in the upstream parts of the Mill
process throughout most of the second quarter of 2010, the yellowcake thickener product
was not of sufficient quality to feed the drying and packaging operations until late May or
early June. Yellowcake drying and packaging operations did not resume until early June
and the yellowcake dryer and packaging area baghouses did not reach steady state as
required for stack sampling until mid-June, 2010. The Mill made an extra attempt to
develop stack data for the 2nd quarter by scheduling stack sampling on June 22 through
24. Samples were collected and shipped to the analytical laboratory by the stack
sampling contractor on those dates. Due to the operational circumstances that resulted in
samples being collected late in the quarter, the analytical laboratory was unable to deliver
analytical results at the time of this report. Analytical data and 2nd quarter 2010 results
for Table 8, below, will be provided in a separate addendum to this report after the Mill
receives the stack testing contractor’s report and analytical data.

The analytical results of stack sampling conducted for the 1st Quarter of 2010, as well as
for the 3rd and 4th Quarters of 2009, are provided in Table 8 below, indicating the uCi/cc
concentration in the stack emissions and the stack’s radionuclide release rate (uCi/sec) for
U-Nat, Th-230, Ra-226 and Pb-210 at each of the stacks sampled. The actual analytical
results reported by the laboratory for the 1st quarter of 2010 are provided in Attachment G
to this report.
9

It is also important to note that stack effluent concentrations are not comparable to
environmental air sampling station ECL’s for regulatory compliance purposes. The ECL
is a limit that applies to the receptor locations and is not applicable to effluents from mill
processes on the Mill site. These stack release data are more appropriately utilized for
dose modeling purposes, and dose modeling is not computed for semi-annual reporting
purposes.

Table 8- Stack Effluent Concentrations and Release Rates

U-Nat
u/Ci/cc
U-Nat.
uCi/sec
Th-230
uCi/cc
Th-230
uCi/sec
Ra-226
uCi/cc
Ra-226
uCi/sec
Pb-210
uCi/cc
Pb-210
uCi/sec
3rd Quarter 2009
North YC Dryer
Scrubber, Run 1 7.05E-09 3.60E-03 Not
required
Not
required
Not
required
Not
required
Not
required
Not
required
North YC Dryer
Scrubber, Run 2 1.72E-08 7.90E-03 Not
required
Not
required
Not
required
Not
required
Not
required
Not
required
Yellowcake Baghouse 3.24E-09 3.44E-03 Not
required
Not
required
Not
required
Not
required
Not
required
Not
required
4th Quarter 2009
North YC Dryer
Scrubber, Run 1 7.31E-09 3.59E-03 3.24E-11 1.59E-05 2.09E-12 1.02E-06 2.83E-13 1.17E-07
North YC Dryer
Scrubber, Run 2 9.94E-09 4.97E-03 1.34E-11 6.71E-06 2.17E-12 1.08E-06 1.98E-13 9.92E-08
Yellowcake Baghouse 3.74E-09 4.61E-03 2.01E-11 2.48E-05 1.34E-12 1.65E-06 4.22E-13 5.20E-07
1ST Qtr, 2010
North YC Dryer
Scrubber, Run 1 7.31E-9 4.14E-03 Not
required
Not
required
Not
required
Not
required
Not
required
Not
required
North YC Dryer
Scrubber, Run 2 9.94E-13 6.00E-03 Not
required
Not
required
Not
required
Not
required
Not
required
Not
required
Yellowcake Baghouse 1.02E-11 1.11E-05

Not
required
Not
required
Not
required
Not
required
Not
required
Not
required
2nd Qtr, 2010
North YC Dryer
Scrubber, Run 1
Analysis
in
progress
Analysis
in
progress
Analysis
in
progress
Analysis
in
progress
Analysis
in
progress
Analysis
in
progress
Analysis
in
progress
Analysis
in
progress
North YC Dryer
Scrubber, Run 2
Analysis
in
progress
Analysis
in
progress
Analysis
in
progress
Analysis
in
progress
Analysis
in
progress
Analysis
in
progress
Analysis
in
progress
Analysis
in
progress
Yellowcake Baghouse
Analysis
in
progress
Analysis
in
progress
Analysis
in
progress
Analysis
in
progress
Analysis
in
progress
Analysis
in
progress
Analysis
in
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Analysis
in
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Grizzly Baghouse
Analysis
in
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Analysis
in
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Analysis
in
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Analysis
in
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Analysis
in
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Analysis
in
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Analysis
in
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Analysis
in
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*Only one run was performed on the North Yellowcake Dryer Stack in the first quarter.

6.SURFACE WATER MONITORING
Under the License,and Part I of the Mill's Environmental Protection Manual,surface
water samples are required to be obtained annually from Westwater Canyon and qumterly
from Cottonwood Creek,using grab sampling.Cottonwood Creek is an intermittent
ephemeral drainage located southwest and down-gradient of the Mill complex.
Westwater Canyon is a drainage located west ofthe Mill facility,which is rarely flowing.
Surface water samples were collected from Cottonwood Creek during the 1st and 2nd
Quarters of 2010.Surface water samples were collected from Westwood Creek during
the Ist quarter or 2010.The field data sheets for the surface water sampling attempts,
along with graphs showing historic results are included as Attachment H.
7.SOIL SAMPLING
Annual soil samples are collected by the Mill staff during the third quarter of each year
and are,therefore,not reported for this period.
8.METEOROLOGICAL MONITORING
As in prior repOlting periods,an independent contractor has prepared the White Mesa
Mill Semi-annual Meteorological Monitoring Report for the period of January through
June,20 IO.This infOlmation is retained at the Mill site for agency review.
9.SIGNATURE
This RepOlt was prepared by Denison Mines (USA)Corp.on August 31,20 IO.
Denison Mines (USA)Corp.
By:
Dav Q .Fryd nlund
Vice President,Regulatory Affairs and Counsel
10

ATTACHMENT A

ATTACHMENT B

TAB 1
BHV-1 AIR SAMPLING GRAPHS AND DATA TABLE

Date EffluentConcentration limit =9E-14 uCi/ml BHV-lU Effluent Concentration limit =2E-14 uCi/ml BHV-lT EffluentConcentration limit=9E-13 uCi/ml BHV-1R EffluentConcentration limit =6E-13 uCi/ml BHV-IPB
ALARA Goal =2.25E-14 uCi/ml ALARAGoal=5E-13 uCi/ml ALARAGoal =2.25E-13 uCi/ml ALARA Goal =1.5E-13uCi/ml
Pre 1994 MPC limit=5E-12 uCi/ml Pre 1994MPC limit =8E-14 uCi/ml Pre 1994 MPC limit =2E-12 uCi/ml Pre 1994MPC limit=4E-12 uCi/ml
Pre 1994 ALARA GOAt =1.25E-12 uCi/ml Pre 1994AtARA GOAL=5E-13 uCi/ml Pre 1994 ALARA GOAL =1E-12uCi/ml
Cone EFC EFC A Cone EFC EFCA Cone EFC EFCA Cone EFC EFCA
9/28/1981 2.35£-15 5,00E·12 1.25E-12 7.82£-16 8.00£-14 2.00£-14 1.06E-15 2.00E-12 5.00£-13 2.57E-14 4.00£-12 1.00£-12
12/14/1981 1.56£-15 5.00£-12 1.25E-12 1.49£-15 8.00£-14 2.00£-14 1.93£-15 2.00£-12 5.00£-13 2.64E-14 4.00£-12 1.00£-12
3/29/1982 2.16£-15 5.00E-12 1.25£-12 2.93£-15 8.00£-14 2.00£-14 1.16£-15 2.00£-12 5.00£-13 2.09£-14 4.00E-12 1.00£-12
6/30/1982 4.69£-15 5.00E-12 1.25H2 3.46£-15 8.00E-14 2.00£-14 2.38E-15 2.00E-12 5.00£-13 2.14E-14 4.00£-12 1.00£-12
9/27/1982 4.45£-15 5.00£-12 1.25£-12 3.29£-15 8.00£-14 2.00£-14 3.23E-15 2.00£-12 5.00£-13 1.99E-14 4.00£-12 1.00£-12
1/3/1983 4.39E-15 5.00£-12 1.25£-12 5.9lE-16 8.00£-14 2.00E-14 9.14£-16 2.00£-12 5.00E-13 4.87E-14 4.00£-12 1.00£-12
4/4/1983 7.5lE-16 5.00£-12 1.25£-12 2.13E-16 8.00£-14 2.00E-14 3.20E-16 2.00£-12 5.00£-13 1.88E-14 4.00E-12 1.00£-12
6/30/1983 2.68£-16 5.00£-12 1.25E-12 6.92E-16 8.00£-14 2.00E-14 7.92E-16 2.00£-12 5.00£-13 2.00£-14 4.00£-12 1.00£-12
10/3/1983 5.00£-12 1.25H2 8.00£14 2.00E-14 0.00£+00 2.00£-12 5.00£-13 4.00E-12 1.00£-12
1/3/1984 2_87£-15 5.00£-12 1.25£12 1.14£-16 8.00£-14 2.00£-14 1.79£-16 2.00£-12 5.00£-13 1.06£-14 4.00£-12 1.00£-12
4/2/1984 1.59£-15 5.00£-12 1.25£-12 3.40E-16 8.00E-14 2.00£-14 3.71£-16 2.00E 12 5.00E-13 334E-14 4.00E-12 1.00£-12
7/2/1984 3.10E-15 5.00E-12 1.25£-12 1.00E-15 8.00E-14 2.00E-14 2.09£-15 2.00H2 5.00£-13 1.88E-14 4.00E-12 1.00£-12
10/1/1984 6.42£-16 5.00£-12 1.25£-12 1.39£-16 8.00£-14 2.00£-14 1.94£-16 2.00£-12 5.00£-13 1.85£14 4.00£-12 1.00£-12
1/2/1985 5.06E-16 5.00£-12 1.25£-12 4.56£-16 8.00£14 2.00£-14 3.49E-16 2.00£-12 5.00£-13 3.03£-14 4.00E-12 1.00E-12
4/1/1985 O.OOE+OO 5.00£-12 1.25£-12 1.23£-15 8.00£-14 2.00£-14 4.88£-16 2.00£-12 5.00£-13 8.06£-15 4.00£-12 1.00£-12
7/1/1985 7.17£-16 5.00£-12 1.25£-12 8.00E-14 2.00E-14 1.05£-15 2.00£-12 5.00£-13 2.15£-14 4.00E-12 1.00£-12
9/30/1985 6.13E-16 5.00£-12 1.25£-12 1.18£-16 8.00£-14 2.00£-14 3.71£-16 2.00£-12 5.00£-13 3.64£-15 4.00£-12 1.00£-12
1/2/1986 3A2£-15 5.00£-12 1.25£-12 4.74£-16 8.00E-14 2.00£-14 2.00£-12 5.00£-13 4.00£-12 1.00£-12
4/1/1986 3.98£-15 5.00£-12 1_25£-12 9.74£-16 8.00£-14 2.00£-14 1.50H5 2.00£-12 5.00£-13 lAl£-14 4.00£-12 1.00£-12
6/30/1986 5.51£-17 5.00£12 1.25£-12 3.52£-16 8.00£-14 2.00£-14 1.37£-15 2.00E-12 5.00£-13 1.23£-14 4.00£-12 1.00£-12
10/27/1986 1.99E-15 5.00£-12 1.25£-12 3.06£-16 8.00£-14 2.00£-14 1.25£-15 2.00£-12 5.00£-13 1.08£-14 4.00£-12 1.00£-12
12/15/1986 1.67£-15 5.00£-12 1.25£-12 1.16£-16 8.00£-14 2.00£-14 5.98£-16 2.00£-12 5.00£-13 1.37£-14 4.00£-12 1.00£-12
3/16/1987 2.33£-15 5.00£-12 1.25H2 4.30E-16 8.00£-14 2.00E-14 1.92£-16 2.00£-12 5.00£-13 5.59£.14 4.00£-12 1.00E-12
5/11/1987 2.36£-15 5.00E-12 1.25E-12 7.69E-16 8.00£-14 2.00£-14 8.76£-16 2.00£-12 5.00£-13 1.45E-14 4.00£-12 1.00E-12
9/9/1987 2.27E-15 5.00£-12 1.25£-12 2.44E-15 8.00E-14 2.00£-14 8.5lE-16 2.00£-12 5.00£-13 3.14£-14 4.00£-12 1.00E-12
11/2/1987 2.75E-15 5.00E-12 l.25£-12 2.46£-15 8.00£-14 2.00E-14 1.34£-15 2.00£-12 5.00£-13 2.79E-14 4.00E-12 1.00£-12
2/16/1988 1.07E-15 5.00£-12 1.25E-12 1.47E-16 8.00£-14 2.00E-14 4.44£-16 2.00H2 5.00£-13 4.01£-14 4.00£-12 1.00£-12
5/18/1988 1.98E-15 5.00E-12 1.25£-12 1.25E-15 8.00E-14 2.00E-14 6.40£-16 2.00£-12 5.00£-13 1.07E-14 4.00£-12 1.00£-12
8/15/1988 2.06E-15 5.00£-12 1.25E-12 3.4lE-15 8.00E-14 2.00£-14 5.08E-16 2.00£-12 5.00£-13 1.62E-14 4.00£-12 1.00£-12
11/14/1988 3.94£-15 5.00£-12 1.25£-12 2.12£-15 8.00£-14 2.00E-14 1.01E-15 2.00£-12 5.00£-13 2.47E-14 4.00£-12 1.00E-12
2/13/1989 1.99£-15 5.00£-12 1.25£-12 5.73E-16 8.00£-14 2.00£-14 5.99E-15 2.00£-12 5.00E-13 3.23E-14 4.00£-12 1.00£-12
5/15/1989 1.70£-15 5.00£-12 1.25E-12 6.32£-16 8.00£-14 2.00E-14 5.86£-16 2.00£-12 5.00E-13 6.16E-15 4.00£-12 1.00E-12
8/14/1989 2.3lE-15 5.00£-12 1.25£-12 2.31E-16 8.00£-14 2.00E-14 1.77£-16 2.00E-12 5_00£-13 7.65E-15 4.00E-12 1.00£-12
11/13/1989 4.72£-15 5.00£-12 l.25£-12 1.71£-15 8.00£-14 2.00E-14 1.52£-15 2.00£-12 5.00E-13 1.89£-14 4.00£-12 1.00E-12
2/12/1990 3.44E-16 5.00£-12 1_25£-12 8.39£-16 8.00£-14 2.00£-14 8.31E-16 2.00E-12 5.00E-13 2.57£-14 4.00E-12 1.00E-12
5/14/1990 3.03£-15 5.00£-12 1.25£-12 1.47£-15 8.00£-14 2_00£-14 1.04E-15 2.00£-12 5.00£-13 1.79£-14 4.00E-12 1.00£-12
8/13/1990 1.64£-15 5.00£-12 1.25E-12 1.49£-15 8.00£-14 2.00E-14 3.34£-16 2.00£-12 5.00£-13 8.27£-15 4.00£12 1.00£-12
11/12/1990 1.48£-15 5.00£-12 1.25£-12 7.50£-16 8.00£-14 2.00E-14 5.80£-16 2.00£-12 5.00£-13 2.16£-14 4.00£-12 1.00£-12
2/11/1991 1.90£-16 5.00£-12 1.25E-12 3.48E-17 8.00£-14 2.00£-14 7.9lE-17 2.00E-12 5.00£-13 3.79E-14 4.00£-12 1.00£-12
5/13/1991 3.42£-16 5.00£-12 1.25£-12 1.34£-15 8.00£-14 2:.00E-14 7.39£-16 2.00£-12 5.00£-13 1.46£-14 4.00£-12 1.00£-12
8/12/1991 2.77£-16 5.00£-12 1.25£-12 4.17£-17 8.00£-14 2.00£-14 1.45£-16 2.00E-12 5.00E-13 1.80£·14 4.00E-12 1.00£-12
11/11/1991 6.65£-17 5.00£-12 1.25£-12 9.13£-17 8.00£-14 2.00£-14 2.77£-17 2.00£-12 5.00£-13 1.06£-14 4.00£-12 1.00E-12:
2/10/1992 1.94£-16 5.00£-12 1.25E-12 4.28E-17 8.00£-14 2.00£-14 4,08£-17 2.00E-12 5.00£-13 3.51£-14 4.00£-12 1.00£-12
5/11/1992 2.54£-16 5.00£-12 1.25£-12 6.49E-16 KOO£-14 2.00E-14 6.86£-17 2.00£-12 5.00E-13 1.38£-14 4.00£-12 1.00£-12
8/10/1992 1.73£-16 5.00£-12 1.25£-12 1.55£-16 8.00£-14 2.00E-14 1.20E-15 2.00E-12 5.00£-13 1.53E-14 4.00£-12 1.00E-12
11/9/1992 1.55E-16 5.00£-12 1.25E-12 3.19E-17 8.00£-14 2.00£-14 4.90£-18 2.00£-12 5.00£-13 1.85E-14 4.00£-12 1.00£-12
2/9/1993 2.10£-16 5.00£-12:1.25£-12 8.00£-14 2.00£-14 3.89£-17 2.00£-12 5.00£-13 2.52£-14 4.00£-12 1.00£-12
5/10/1993 1.00E-16 5.00£-12 1.25£-12 4.11£-17 8.00£-14 2.00£-14 6.43£-17 2.00£-12 5.00£-13 1.26£-14 4.00E-12 1.00E-12
8/10/1993 2.30£-16 5.00£-12 l.25£-12 6.00E-17 8.00E-14 2.00£-14 6.43£-17 2.00£-12 5.00H3 1.60£-14 4.00£-12 1.00£-12
11/8/1993 5.00E-12 1.25E-12 8.00£-14 2.00E-14 0.00£+00 2.00£-12 5.00£-13 1.57£-14 4.00£-12 1.00£-12
2/7/1994 1.82E-16 5.00£-12 1.25E-12 5.00£-18 8.00E-14 2.00£-14 4.30E-17 2.00£-12 5.00£13 2.59£-14 4.00E-12 1.00£-12
5/9/1994 3.60£-16 5.00£-12 1.25E-12 2.70£-16 8.00£-14 2.00E-14 2.87£-16 2.00£-12 5.00£-13 1.60£-14 4.00£-12 1.00£-12
8/9/1994 4.04£-16 5.00E-12 l.25£-12 2.70£-16 8.00£·14 2.00£-14 2.94£-16 2.00E-12 5.00£-13 2.00£-15 4,00E-12 1.00£-12
11/7/1994 9.18£-17 5.00£-12 1.25£-12 3.60£-16 8.00E-14 2.00E-14 2.9lE-16 2.00£12 5.00£-13 2.00E-15 4.00E-12 1.00E-12
2/7/1995 1.77£-16 9.00E-14 2.25£-14 9.70£-17 2.00£-14 5.00£-15 9.70£-17 9.00£-13 2.25£-13 8.60E-15 6.00£-13 1.50£-13
5/9/1995 9.40E-17 9.00£-14 2.25£-14 5.36E-16 2.00E-14 5.00£-15 1.60£-15 9.00£-13 2.25£-13 3.84£-15 6.00£-13 1.50£-13
8/9/1995 2.70E-16 9.00£-14 2.25£-14 1.60E-16 2.00£-14 5.00£-15 2.76£-16 9.00£-13 2.25E-13 3.76£-15 6.00£-13 1.50E-13
Date Effluent Concentration limit =9E-14 uCi/ml BHV-lU EffluentConcentration Limit =2E-14 uCi/ml BHV-lT EffluentConcentration Limit =9E-13 uCi/ml BHV-1R Effluent Concentration Limit =6E-13 uCi/ml BHV-IPB
ALARA Goal=2.25E-14 uCi/ml ALARAGoal =5E·13uCi/ml ALARA Goal =2.25E-13 uCi/ml ALARAGoal =1.5E-13 uCijml
Pre 1994 MPC Limit =5E·l2 uCijml Pre 1994 MPC Limit =8E-14 uCijml Pre 1994 MPC Limit =2E-12 uCi/ml Pre1994 MPC limit=4E-12 uCijml
Pre 1994ALARA GOAL =1.25E-12 uCijml Pre 1994 ALARA GOAL =5E-13 uCijml Pre1994ALARA GOAL =1E-l2 uCijml
Cone EFC EFCA Cone EFC EFCA Cone EFC EFC A Cone EFC EFCA
3/31/Z010 1.97£-15 9.00E-14 2.25E-14 2.15£-16 2.00E-14 5.00£15 3.27£-16 9.00E-13 2.25£-13 1.00E-14 6.00£-13 1.50E-13
6/30/2010 1.58E-15 9.00E-14 2.25E-14 4.71£-16 2.00£.14 5,00£,15 7.70E-16 9.00E-13 2.25£-13 4.07E-15 6.00E-13 1.50E-13
~
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90-daS
90-daS
vo-das
£o-das
lij-daS 0
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~o-das "0ro'"-'
oo-das +66-daS CD
N
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"0ro0::
96-das
+96-daS
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06-daS ro~::J
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9S-daS
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£s-das
zs-das
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N '"....on CD "-OJ
~~~~~~~,,,,,,,w w w w w w w0000000~~~~~~0
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(ale:>s 601)
1.00E-11
Effluent Concentration Limit =9E-14 uCi/ml
ALARA Goal =2.25E-14 uCi/ml
Pre 1994 MPC Limit =5E-12uCi/ml
Pre 1994 ALARA Goal =1.25E-12 uCilml
BHV-1 Uranium-Natural Concentrations (uCi/ml)
1.00E-12
1.00E-13
w~(/)1.00E-14
Cld.
100E-15
1.00E-16
1..·H ...zr.J \J.
I¥~,.V ..I.,~,I--.-t--
1I'l •tIiA•I T V I~1\J ~~.L--...V·\l\J v \/J\/~I~
1.00E-17
~N '"co co co6.6.6-CD CD CD
(/) (/)(/)
~:2..a.a.CD CD
(/)(/)
(s:Jco6-CD
(/)
....co6-CD
(/)
coco6-CD
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Cl'\'a.CD
(/)
o~li}
(/)
~6-CD
(/)
N~a.CD
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'"6-CD
(/)
....~a.CD
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I{)
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(s:J
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(/)
....~a.CD
(/)
co~a.CD
(/)
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(/)
o
'%.
CD
(/)
~o6-CD
(/)
No6-CD
(/)
'"o6-CD
(/)
....o6-CD
(/)
I{)o6-CD
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(s:Jo6-CD
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....o6-CD
(/)
coo6-CD
(/)
'"o6-CD
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60-daS
ao-das
Lo-das
90-das
so-das
vO-daS
£O-daS
ZO-daS
~o-das
oo-das
66-das
a6-daS
L6-daS
96-daS
S6-daS
v6-das
£6-das
Z6-das
~6-das
06-das
6a-daS
aa-das
La-das
9a-das
sa-das
va-das
£a-das
za-das
~a-das
1.00E-11
Effluent Concentration Limit =9E-13 uCilml
ALARA Goal =2.25E-13 uCi/ml
Pre 1994 MPC Limit =2E-12uCilml
Pre 1994 ALARA Goal =5E-13 uCi/ml
BHV-1 Radium-226 Concentrations (uCi/ml)
1.00E-12
1.00E-13
_1.00E-14
Q)ro"en
Clo...J~1.00E-15
1.00E-16
1.00E-17
\
.1rv.\.....~t ~1
1 -"••.1
•••I ~J~..V ~'\!\..JJ ,,\.Ai~
•
1.00E-18
~co
6.Q)en
~
6.Q)en
Mco
6.Q)en
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6.Q)en
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6.Q)en
~
6.Q)en
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~
6.Q)en
C)a;>c.Q)en
a ~
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6.Q)en
C)
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6.Q)en
aa6.Q)en
~'7'c.Q)en
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9c.Q)en
LO'7'c.
Q)en
CD'7'c.Q)en
.....co C)a a aa.a.6-Q)Q)Q)en en en
1.00E-11
Effluent Concentration Limit =6E-13 uCi/ml
ALARA Goal =1.5E-13 uCi/ml
Pre 1994 MPC Limit =4E-12uCi/ml
Pre 1994 ALARA Goal =1E-12 uCi/ml
BHV-1 Lead-210 Concentrations (uCi/ml)
1.00E-12
1.00E-13
Q)
"iii<.>Ul1.00E-14
8'do
1.00E-15
1.00E-16
.........1 1\fI ~,A 1 ~~-...~•\j T \,~Vv+l J..•~t •I~•
1.00E-17
~co6.'"Ul
Nco6.'"Ul
'""i'Co'"Ul
i'"Ul
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coo6.'"Ul
OJo6.'"Ul

TAB 2
BHV-2 AIR SAMPLING GRAPHS AND DATA TABLE

Date Effluent Concentration limit=9E-14 uCi/ml BHV-2U Effluent Concentration limit=2E-14 uCi/ml BHV-2T Effluent Concentration Limit =9E-13 uCi/ml BHV-2R Effluent Concentration limit =6E-13 uCi/ml BHV-2PB
ALARAGoal=2.25E-14 uCi/ml ALARAGoaJ =5£-13 uCi/ml ALARA Goal =2.25E-13 uCi/mJ ALARA Goal =l.5E-13 uCi/ml
Pre 1994MPC Limit=5E-12 uCi/ml Pre 1994 MPC limit=8E-14 uCi/ml Pre 1994MPC limit=2E-12uCi/ml Pre 1994MPClimit =4E·12 uCi/ml
Pre 1994ALARA GOAL =1.25£-12uCi/ml Pre 1994 ALARA GOAL =5£-13 uCi/ml Pre 1994ALARA GOAL =1E-12 uCi/ml
Cone EFC EFCA Cone EFC EFCA Cone <FC EFCA Cone <FC EFCA
9/28/1981 1.39£-15 5.00E-12 1.25E-12 3.69£-16 8.00E-14 2.00£-14 5.92E-16 2.00£-12 5.00£-13 1.67E-14 4.00£-12 1.00E-12
12/14/1981 4.62£-16 5.00£-12 1.25E-12 8.03E-16 8.00E-14 2.00E-14 3.62E-16 2.00E-12 5.00E-13 1.33E-14 4.00E-12 1.00E-12
3/29/1982 7.07E-16 5.00E-12 1.25E-12 1.10E-15 8.00E-14 2.00E-14 7.27E-16 2.00E-12 5.00E-13 1.52E-14 4.00E-12 1.00E-12
6/30/1982 8.84E-16 5.00E-12 1.25E-12 7.73E-16 8-00E-14 2.00E-14 4.78E-16 2.00E-12 5.00E-13 1.98E-14 4.00E-12 1.00E-12
9/27/1982 1.23E-15 5.00E-12 1.25E-12 3.60E-16 8.00E-14 2.00E-14 8.73£-16 2.00E-12 5.00E-13 2.35£-14 4.00E-12 1.00£-12
1/3/1983 2.64E-15 5.00E-12 1.25E-12 2.55E-15 8.00E-14 2.00E-14 1.98E-16 2.00E-12 5.00E-13 2.85E-14 4.00£-12 1.00£-12
4/4/1983 2.14£-15 5.00E-12 1.25E-12 1.02£-15 8.00E-14 2.00E-14 1.57E-15 2.00£-12 5.00E-13 2.48£-14 4.00E-12 1.00E-12
5/30/1983 2.85E-16 5.00E-12 1.25E-12 2.05E-15 8.00E-14 2.00E-14 2.24E-16 2.00E-12 5.00E-13 1.79E-14 4.00E-12 1.00£-12
10/3/1983 2.70E-16 5.00E-12 1.25E-12 3.36E-15 8.00E-14 2.00E-14 4.37E-15 2.00E-12 5.00E-13 1.78E-14 4.00E-12 1.00E-12
1/3/1984 2.78£-15 5.00E-12 1.25E-12 1.20E-15 8.00E-14 2.00E-14 6.64E-17 2.00E-12 5.00E-13 9.14E-15 4.00E-12 1.00E-12
4/2/1984 4.28E-15 5.00E-12 1.25E-12 1.75E-16 8.00E-14 2.00E-14 4.57E-17 2.00E-12 5.00E-13 3.55E-14 4.00E-12 1.00£-12
7/2/1984 2.78E-15 5.00E-12 1.25E-12 8.12£-16 8.00E-14 2.00£-14 1.98E-16 2.00E-12 5.00E-13 1.68E-14 4.00£-12 1.00£-12
10/1/1984 2.69E-16 5.00E-12 1.25E-12 2.56E-17 8.00E-14 2.00E-14 O.OOE+OO 2.00£-12 5.00E-13 1.77E-14 4.00E+12 1.00E-12
1/2/1985 2.15E-15 5.00E-12 1.25E-12 7.55E-16 8.00E-14 2.00E-14 2.87E-15 2.00E-12 5.00E-13 3.19E-14 4.00E-12 1.00E-12
4/1/1985 1.00E-15 5.00E-12 1.25E-12 1.67£-15 8.00E-14 2.00E-14 6.75E-17 2.00E-12 5.00E-13 7.56E-15 4.00£-12 1.00E-12
7/1/1985 3.70E-17 5.00E-12 1.25E-12 9.00E-16 8.00E-14 2.00E-14 4.90E-17 2.00E-12 5.00E 13 1.31E-14 4.00E-12 1.00E-12
9/30/1985 9.32E-17 5.00E-12 1.25£-12 2.18E-15 8.00H4 2.00E-14 3.71E-16 2.00E-12 5.00E-13 3.54E-15 4.00E-12 1.00E-12
1/2/1986 1.00E-16 5.00E-12 1.25E-12 2.16E-16 8.00E-14 2.00E-14 2.15E-17 2.00E-12 5.00E-13 3.04E-16 4.00E-12 1.00E-12
4/1/1985 1.31E-15 5.00E-12 1.25E-12 1.50E-16 8.00£-14 2.00E-14 3.71E-15 2.00E-12 5.00E-13 2.90E-15 4.00£-12 1.00E-12
6/30/1986 2.23E-16 5.00E-12 1.25E-12 1.32E-15 8.00E-14 2.00E-14 7.09£-17 2.00E-12 5.00E-13 2.53E-14 4.00E-12 1.00E-12
10/27/1986 5.41E-16 5.00E-12 1.25£-12 1.74E-15 8.00E-14 2.00E-14 3.67E-16 2.00E-12 5.00E-13 1.04E-14 4.00E-12 1.00£-12
12/15/1986 3.55E-16 5.00E-12 1.25E-12 1.00E-16 8.00E-14 2.00£-14 1.05E-16 2.00E-12 5.00E-13 7.81E-15 4.00E-12 1.00E-12
3/15/1987 5.31E-16 5.00E-12 1.25£-12 1.30E-16 8.00E-14 2.00E-14 7.74E-17 2.00£-12 5.00E-13 3.80E-14 4.00£-12 1.00£-12
5/11/1987 4.06E-15 5.00E-12 1.25E-12 6.63E-17 8.00E-14 2.00E-14 1.34E-15 2.00£-12 5.00E-13 1.10E-14 4.00E-12 1.00E-12
9/9/1987 2.74£-15 5.00E-12 1.25£-12 2.38£-16 8.00E-14 2.00E-14 1.38£-16 2.00E-12 5.00£-13 1.04E-14 4.00E-12 1.00E-12
11/2/1987 3.73E-16 5.00E-12 1.25E-12 3.11E-16 8.00E-14 2.00E-14 1.83E-16 2.00E-12 5.00E-13 1.17E-14 4.00E-12 1.00E-12
2/16/1988 2.78E-15 5.00E-12 1.25£-12 2.31E-17 8.00E-14 2.00E-14 1.20E-16 2.00E-12 5.00E-13 3.55E-14 4.00E-12 1.00E-12
5/18/1988 4.63E-16 5.00E-12 1.25E-12 1.49E-16 8.00E-14 2.00E-14 2.30E-16 2.00E-12 5.00E-13 1.18E-14 4.00E-12 1.00E-12
8/15/1988 8.06E-16 5.00E-12 1.25E-12 8.69E-16 8.00£-14 2.00£-14 1.80E-15 2.00E-12 5.00E-13 1.42£-14 4.00£-12 1.00E-12
11/14/1988 4.34E-16 5.00E-12 1.25E-12 6.75E-16 8.00E-14 2.00E-14 1.57E-15 2.00E-12 5.00E-13 2.25E-14 4.00E-12 1.00E-12
2/13/1989 5.80E-16 5.00E-12 1.25E-12 2.85E·16 8.00E-14 2.00E-14 1.55E-16 2.00E-12 5.00£-13 2.80E-14 4.00E-12 1.00E-12
5/15/1989 5.06E-16 5.00E-12 1.25E-12 2.28£-16 8.00E-14 2.00E-14 1.63E-16 2.00E-12 5.00E-13 6.05£.15 4.00E-12 1.00E-12
8/14/1989 4.7lE-15 5.00£-12 1.25£-12 9.60£-16 8.00E-14 2.00E-14 1.26£-15 2.00E-12 5.00E-13 6.65E-15 4.00E-12 1.00E-12
11/13/1989 1.14E-15 5.00£-12 1.25£-12 4.08E-16 8.00E-14 2.00E-14 4.18£-16 2.00£-12 5.00E-13 1.59E-14 4.00E-12 1.00E-12
2/12/1990 1.09E-15 5.00£-12 1.25E-12 3.25E-16 8.00£-14 2.00E-14 3.74E-16 2.00E-12 5.00E-13 1.98£-14 4.00E-12 1.00£-12
5/14/1990 9.32E-16 5.00E-12 1.25E-12 5.27£-16 8.00E-14 2.00£-14 3.97E-16 2.00E-12 5.00E-13 1.59E-14 4.00E-12 1.00E-12
8/13/1990 1.66E-16 5.00£-12 1.25£-12 5.49E-16 8.00E-14 2.00E-14 4.75£-17 2.00E-12 5.00E-13 1.27E-15 4.00E-12 1.00E-12
11/12/1990 6.05E-16 5.00E-12 1.25E-12 2.64E-16 8.00£-14 2.00E-14 1.93E-16 2.00E-12 5.00E-13 2.25E-14 4.00E-12 1.00E-12
2/11/1991 8.72E-17 5.00E-12 1.25E-12 7.00E-18 8.00E-14 2.00E-14 3.33E-17 2.00E-12 5.00£-13 3.49E-14 4.00E-12 1.00E-12
5/13/1991 1.16E-15 5.00£-12 1.25E-12 3.85E-16 8.00E-14 2.00E-14 2.80£-16 2.00E-12 5.00E-13 1.50E-14 4.00E-12 1.00E-12
8/12/1991 9.02E-17 5.00E-12 1.25E-12 8.82E-17 8.00E-14 2.00E-14 7.65E-17 2.00E-12 5.00£-13 1.58E-14 4.00E-12 1.00E-12
11/11/1991 4.8lE-17 5.00E-12 1.25E-12 3.82E-17 8.00E-14 2.00E-14 2.54E-17 2.00E-12 5.00£-13 1.45E-14 4.00E-12 1.00E-12
2/10/1992 1.54E-16 5.00E-12 1.25E-12 5.82£-17 8.00E-14 2.00E-14 1.40E-17 2.00E-12 5.00£-13 3.41E-14 4.00E-12 1.00E-12
5/11/1992 2.38£-16 5.00E-12 1.25E-12 7.63E-17 8.00E-14 2.00E-14 3.07E-17 2.00E-12 5.00£-13 1.27E-14 4.00E-12 1.00E-12
8/10/1992 1.01E-15 5.00E-12 1.25E-12 7.07£-17 8.00E-14 2.00E-14 2.80E-17 2.00E-12 5.00E-13 1.41E-14 4.00E-12 1.00£-12
11/9/1992 5.20E-17 5.00E-12 1.25E-12 3.65£-17 8.00E-14 2.00E-14 1.78E-17 2.00E-12 5.00E-13 1.71£-14 4.00E-12 1.00E-12
2/9/1993 2.39£-16 5.00E-12 1.25£-12 2.97E-17 8.00E-14 2.00E-14 6.3lE-17 2.00E-12 5.00E-13 3.41E-14 4.00E-12 1.00E-12
5/10/1993 1.00E-16 5.00E-12 1.25E-12 7.11E-17 8.00E-14 2.00E-14 3.19£-17 2.00E-12 5.00E-13 1.34E-14 4.00E-12 1.00E-12
8/10/1993 1.90E-16 5.00£-12 1.25£-12 1.00E-16 8.00£-14 2.00E-14 1.00E-16 2.00E-12 5.00E-13 1.80E-14 4.00E-12 1.00E-12
11/8/1993 1.00E-16 5.00£-12 1.25£-12 1.00E-16 8.00E-14 2.00£-14 1.00£-16 2.00E-12 5.00E-13 1.49£-14 4.00£-12 1.00E-12
2/7/1994 2.23E-16 5.00£-12 1.25£-12 1.00E-15 8.00E-14 2.00E-14 1.84E-15 2.00£-12 5.00E-13 2.19E-14 4.00E-12 1.00E-12
5/9/1994 2.16E-16 5.00£.12 1.25E·12 7.20E-17 8.00E-14 2.00£-14 9.89E-17 2.00E-12 5.00E-13 1.37E-14 4.00E-12 1.00E-12
8/9/1994 9.29E-17 5.00E-12 1.25E-12 2.95E-16 8.00£-14 2.00E-14 3.04E-16 2.00E-12 5.00E-13 1.00E-16 4.00E-12 1.00£-12
11/7/1994 9.21£-17 5.00E-12 1.25E-12 2.35£-16 8.00£-14 2.00E-14 1.00E-16 2.00E 12 5.00£-13 1.00E-15 4.00E-12 1.00E-12
2/7/1995 1.18E-15 9.00E-14 2.25E-14 9.70E-17 2.00E-14 5.00E-15 9.70E-17 9.00£-13 2.25£-13 7.42E-15 5.00E-13 1.50£-13
5/9/1995 9.40£-17 9.00£-14 2.25£-14 1.20E-15 2.00E-14 5.00E-15 3.50E-16 9.00E-13 2.25E-13 3.90E-15 6.00E-13 1.50E-13
8/9/1995 8.90£-17 9.00E-14 2.25£-14 9.57E-17 2.00E-14 5.00E-15 1.35E-16 9.00£-13 2.25£-13 2.38E-16 6.00E-13 1.50E-13
Date EffluentConcentration Limit:::9E-14 uCi/ml BHV-2U Effluent Concentration limit =2E-14 uCi/ml BHV-2T Effluent ConcentrationLimit:::9E-13 uCi/ml BHV-2R EffluentConcentrationlimit:::6E-13 uCi/ml BHV-2PB
ALARAGoal =2.25E-14 uCi/ml ALARA Goal:::5E·13 uCi/ml AlARA Goal:::2.25E-13 uCi/ml ALARAGoal:::1.5E-13 uCi/ml
Pre 1994 MPC limit:::5E·12uCi/ml Pre 1994MPC limit:::8E-14uCi/ml Pre1994 MPC Limit:::2E·12 uCi/ml Pre1994 MPC limit:::4E-12uCi/ml
Pre 1994ALARA GOAL:::1.25E-12 uCi/ml Pre1994 ALARA GOAL =5E·13 uCI/ml Pre1994ALARA GOAL:::1E·12uCi/ml
Cone EFC EFCA Cone EFC EFCA Cone fFC EFCA Cone EFC EFCA
11/11/1995 2.83E-15 9.00E-14 2.25E·14 4.09£-16 2.00E-14 5.00E-15 5.23E-16 9.00E-13 2.25E-13 6.77E·15 6.00E-13 1.50E-13
2/5/1996 1.75E-15 9.00£-14 2.25£-14 8.66£-16 2.00£,14 5.00£-15 4.86£·16 9.00£-13 2.25£-13 3.50£-15 6.00E-13 1.50E·13
5/6/1996 1.40E-16 9.00E-14 2.25E-14 1.15E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 6.85E-15 6.00£.13 1.50E-13
8/5/1996 1.43E-16 9.00E-14 2.25E-14 2.78£.16 2.00E-14 5.00E·15 1.00E-15 9.00E-13 2.25f.13 5.83E-15 6.00E-13 1.50E-13
11/5/1996 1.45E-16 9.00E-14 2.25E·14 1.57E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 1.19E-14 6.00E-13 1.50E-13
2/6/1997 1.00E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 5.84E-16 6.00£-13 1.50E-13
5/5/1997 1.00E·16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 3.89E-15 5.00E-13 1.50E-13
8/11/1997 1.00E-16 9.00E-14 2.25E-14 1.09E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 5.69E-15 6.00E-13 1.50E-13
1/5/1998 2.55E-16 9.00E-14 2.25E-14 1.07E-16 2.00E-14 5.00E-15 5.00E-17 9.00E-13 2.25E-13 5.11E-15 6.00E-13 1.50E-13
4/28/1998 1.20E-16 9.00E-14 2.25E-14 1.71E-16 2.00E-14 5.00£.15 1.28E-16 9.00E-13 2.25E-13 6.40E-15 6.00E-13 1.50E-13
7/31/1998 1.47E-16 9.00E-14 2.25E-14 4.24E-16 2.00E-14 5.00E-15 3.39E-16 9.00E-13 2.25E-13 4.80E-15 6.00E-13 1.50£.13
9/28/1998 1.00E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.ooE-13 2.25E-13 4.26E-15 6.00E-13 1.50E-13
12/28/1998 2.54E-16 9.00E-14 2.25E-14 2.15E-16 2.00E-14 5.00E-15 1.38E-16 9.00E-13 2.25E-13 6.88E-15 6.00E-13 1.50E-13
3/29/1999 1.07E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 7.6lE-15 6.00E-13 1.50E-13
7/3/1999 2.46E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25£.13 6.95E-15 6.00£-13 1.50E-13
9/27/1999 2.81E-16 9.00£-14 2.25E-14 1.41E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 7.35E-15 6.00E-13 1.50E-13
12/28/1999 5.20E-16 9.00E-14 2.25E-14 2.60E-16 2.00E-14 5.00E-15 2.01E-16 9.00E-13 2.25E-13 7.00E-15 6.00E-13 1.50E-13
3/27/2000 1.00E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 7.12E-15 6.00E-13 1.50E-13
6/26/2000 1.10E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.16E-16 9.00E-13 2.25E-13 5.07E-15 6.00E-13 1.50E-13
9/26/2000 1.00E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 5.31£-15 6.00E-13 1.50E-13
12/26/2000 1.26E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25f.13 9,45E-15 6.00E-13 1.50E-13
3/26/2001 1.00E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 6.95E-15 6.00E-13 1.50E-13
7/2/2001 1.00E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00£-15 1.00E-16 9.00E-13 2.25E-13 6.56£-15 6.00£-13 1.50£-13
9/24/2001 1.00E-16 9.00£-14 2.25£-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 6.16E-15 6.00E-13 1.50£-13
12/31/2001 1.00E-16 9.00E-14 2.25E-14 1.00£-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 2.20E-15 6.00E-13 1.50E-13
4/1/2002 1.00E-16 9.00E-14 2.25E-14 1.00E-15 2.00E-14 5.00E-15 1.00£-16 9.00E-13 2.25E-13 9.95E-15 6.00E-13 1.50E-13
7/1/2002 1.25£-16 9.00E-14 2.25E-14 1,43E-16 2.00E-14 5.00£-15 1.00E-16 9.00E-13 2.25E-13 8.25E-15 6.00E·13 1.50E-13
9/30/2002 1.00E-16 9.00E-14 2.25E-14 1.00E·16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 3.69E-15 6.00E-13 1.50E-13
12/30/2002 1.00E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25£-13 6.91£-15 6.00£-13 1.50E-13
3/31/2003 1.00E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00£-15 1.00E-16 9.00E-13 2.25£-13 6.16E-15 6.00E-13 1.50E-13
6/30/2003 1.00E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25£-13 5.27£-15 6.00£-13 1.50E-13
9/29/2003 1.00E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00£-13 2.25£-13 7.23E-15 6.00£-13 1.50E-13
12/29/2003 1.00E-15 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25£-13 7.80E-15 6.00E-13 1.50E-13
3/29/2004 1.00E-16 9.00E-14 2.25£-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 2.04E-14 6.00E-13 1.50E-13
6/27/2004 1.00E-16 9.00E-14 2.25E 14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 3.09E-15 6.00E-13 1.50E-13
9/27/2004 1.00E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 1.73E-14 6.00E-13 1.50E-13
12/27/2004 1.00E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 1.30E-14 6.00E-13 1.50E-13
3/28/2005 1.00E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 8.88E-15 6.00E-13 1.50E-13
6/29/2005 1.00E-16 9.00E-14 2.25E-14 1.00E-16 2.00£·14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 8.85E-15 6.00E-13 1.50E-13
9/26/2005 1.00E-16 9.00£-14 2.25£-14 1.99E·16 2.00E-14 5.00E-15 1.44E-16 9.00E·13 2.25£-13 3.81E-14 6.00E-13 1.50E-13
1/3/2006 1.29E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 4.08E-16 9.00E-13 2.25E-13 6.58E-14 6.00E-13 1.50E-13
4/3/2006 1.02E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00£-13 2.25E-13 1.08E-14 6.00E-13 1.50E-13
7/3/2006 1.QOE-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 6.00E-13 1.50E-13
10/2/2006 1.30E-16 9.00£-14 2.25E-14 1.00£-16 2.00E-14 5.00E-15 1.00£-16 9.00E-13 2.25E-13 1.68E-14 6.00£-13 1.50£-13
1/1/2007 1.24E-16 9.00£-14 2.25E-14 1.00E-16 2.00E-14 5.00£-15 1.00E-16 9.00E-13 2.25E-13 1.38E-14 6.00E-13 1.50E-13
4/2/2007 1.40E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 1.63£-14 6.00E-13 1.50E-13
7/2/2007 1.04E-16 9.00E-14 2.25E·14 1.00E-16 2.00E-14 5.00E-15 1.00E-15 9.00E-13 2.25E-13 1.36E-14 6.00E-13 1.50£.13
9/30/2007 1.00E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 8.24E-15 6.00E-13 1.50E-13
12/31/2007 1.9lE-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 1.18E-14 6.00£-13 1.50E-13
3/30/2008 1.00E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 6,49E-15 6.00E-13 1.50E-13
6/30/2008 1.29E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 4.82E-15 6.00E-13 1.50E-13
9/30/2008 9.00E-14 2.25E-14 2.00E-14 5.00E-15 9.00E-13 2.25E-13 6.00E-13 1.50E-13
12/31/2008 9.00E-14 2.25E-14 2.00E-14 5.00E-15 9.00E-13 2.25E-13 6.00E-13 1.50E-13
3/15/2009 3.96E-16 9.00E-14 2.25E-14 1.38E-16 2.00E-14 5.00E-15 1.07E-16 9.00E-13 2.25E-13 4.81E-15 6.00E-13 1.50E-13
6/15/2009 1.24E-17 9.00E-14 2.25E-14 4.64E-17 2.00E-14 5.00E-15 5.11£.17 9.00E-13 2.25E-13 4.58E-15 6.00E-13 1.50E-13
9/15/2009 2.43E-16 9.00E-14 2.25E-14 5.28E-17 2.00E-14 5.00£-15 4.84E-17 9.00E-13 2.25E-13 1.19E-14 6.00E-13 1.50E-13
12/15/2009 5.72E-16 9.00E-14 2.25E-14 2.94E-17 2.00E-14 5.00E-15 2.57E-17 9.00£-13 2.25E-13 6.70f.15 6.00E-13 1.50E-13
Date EffluentConcentration Limit::9E-14uCi/ml BHV-2U EffluentConcentration limit::2E-14 uCifml BHV-2T EffluentConcentration Limit::9E-13 uCifml BHV-2R Effluent Concentration Limit::6E-13 uCi/ml BHV-2PB
ALARAGoal ::2.25E-14uCifml ALARA Goal::5E-13 uCi/ml ALARAGoal ::2.25E-13 uCifml ALARA Goal::1.5E-13 uCi/ml
Pre 1994 MPCLimit::5E-12 uCifml Pre 1994MPC Limit::8E-14 uCi/ml Pre 1994MPC Limit::2E-12 uCifml Pre 1994MPC Limit::4E-12 uCi/ml
Pre 1994ALARA GOAL ;:1_25E-12uCifml Pre 1994 ALARA GOAL '"5E-13 uCi/ml Pre 1994ALARA GOAL '"1E-12 uCifml
Cone EFC EFCA Cone EFC EFC A Cone EFC EFCA Cone EFC EFCA
3/31/2010 5.47E-16 9.00E-14 2.25E-14 1.42E-17 2.00E-14 5.00E-15 4.66E-17 9.00£-13 2.25E-13 8.24E-15 6.00E-13 1.50H3
6/30/2010 3.58£-16 9.00E·14 2.25f.l4 6.64E-17 2.00E-14 5.00E-15 9.90f.l7 9.00E-13 2.2SE-13 2.01£-15 6.00H3 1.50E-13
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so-das
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oo-das +66-das CDN
S6-daS N,
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l6-das f-
+~6-das
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~~~~~~~,,,,uJ ,,w w w w w w0000000
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~~~~~
(ale:JS 601)
1.00E-11
Effluent Concentration Limit =9E-14 uCllml
ALARA Goal =2.25E-14 uCi/ml
Pre 1994 MPC Limit =5E-12uCllml
Pre 1994ALARA Goal =1.25E-12 uCilml
BHV-2 Uranium-Natural Concentrations (uCi/ml)
1.00E-12
1.00E-13
Q)
~Ul1.00E-14
Cl.3
1.00E-15
1.00E-16
1.00E-17
~7 ...
1-1'.
)l't;;:••..t t'·
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-~--
~N M ~~~~~~a ~N M ~~w ~ro m 0 ~N M ~~ID ~ro mrororo00rororo00rommmmmmmmmmoo0 0 0 0 0 0 0 0I,,I ••••• ,I I I I I I I I ,I I •• I I I I I I~~n n n n n n n n n n n n n n n n n n n n n n n n n n nm~~w w w w w w w w w w w w w w w w w w w w w w w w w wUlUlUlUlUlUlUlUlUlUlUlUlUlUlUlUlUlUlUlUlUlUlUlUlUlUlUlUlUl
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60-das
so-das
LO-daS
90-daS
go-das
vO-daS
Eo-das
lo-das
~o-das
oo-das
66-daS
S6-daS
L6-daS
96-das
g6-das
v6-das
E6-daS
l6-daS
~6-das
06-daS
6S-daS
SS-daS
LS-daS
9S-daS
gs-das
vs-das
Es-das
ls-das
~s-das
1.00E-11
Effluent Concentration Limit =9E-13 uCi/ml
ALARA Goal =2.25E-13 uCilml
Pre 1994 MPC Limit =2E-12uCi/ml
Pre 1994 ALARA Goal =5E-13 uCilml
BHV-2 Radium-226 Concentrations (uCi/ml)
\
t 6 .."I....~~A lA 1\.j
~1"'\,..
~
1.00E-12
1.00E-13
.,
~U)1.00E-14
Clo:::!.
1.00E-15
1.00E-16
1.00E-17
~N ..,....".,
<0 co <Xl GO coa.a.a.a.6.Q)Q)Q) Q)Q)U)U)U)U)U)
<0co6.Q)U)
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coco6.Q)U)
Ol acoOl6..6-Q)Q)U)U)
~q>a.
J!
Nq>a.Q)en
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q>a.Q)en
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co Ol a~6.6-Q)Q)Q)U)en en
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..,
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".,a6.Q)U)
to ,....co C)a 0 0 0• ,• IC.C.0.0-m Q)Q)Q)U)U)U)U)
1.00E-11
Effluent Concentration Limit =6E-13 uCilml
ALARA Goal =1.5E-13 uCilml
Pre 1994 MPC Limll =4E-12uCilml
Pre 1994 ALARA Goal =1E-12 uCilml
BHV-2 Lead-210 Concentrations (uCi/ml)
1.00E-12
1.00E-13
Qlrien1.00E-14
Olo;::!.
1.00E-15
1.00E-16
I •.11
~.J 1\1\f·11 'A -I.~It......'-.J¥If "¥\J V~~J,.•,.r,•~It •
1.00E-17
"I""""N (f')"'>t I,()co co co co coc.a.a.a.a.Q>Q) Q) Q) Q)en en en en en
<0a:>6.Olen
....a:>a:>a:>,,c- c-Ol Olenen
Ola:>6.Olen
a ~Ol Ol6.6-Ol Olenen
N ""~'?c- c-Ol Olenen
~c-Olen
If)q>c-Olen
<0q>c-Olen
....q>c-Olen
iOlen
Ol
'%.Olen
a ~a aa.6.Ol Olenen
Na6.Olen
""a6.Olen
g
6.Olen
If)a6.Olen
<0a6.Olen
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a:>Ola a6.a.Ol Olenen

TAB 3
BHV-3 AIR SAMPLING GRAPHS AND DATA TABLE

Date EffluentConcentrationlimit:::9E-14 uCi/ml BHV-3U Effluent Concentration Limit:::2E-14 uCi/ml BHV-3T Effluent Concentration Limit:::9E-13 uCi/ml BHV-3R EffluentConcentration limit:::6E-13 uCi/ml BHV-3PB
ALARAGoal'"2.25E-14uCi/ml ALARA Goal:::5E-13 uCi/ml ALARA Goal:::2.25E-13 uCi/ml ALARAGoal :::1.5E-13 uCi/ml
Pre1994 MPC Limit:::5E·12 uCi/ml Pre 1994 MPC Limit:::8E-14uCi/ml Pre 1994MPC limit:::2E-12 uCi/ml Pre1994 MPC Limit::4E-12 uCi/ml
Pre1994ALARA GOAL :::1.25E-12uCi/ml Pre 1994ALARA GOAL:::5E-13uCi/ml Pre1994ALARA GOAL:::lE-12 uCi/ml
Cone EFC EFCA Cone EFC EFCA Cone EFC EFCA Cone EFC EFCA
9/28/1981 1.74E-15 5.00E-12 1.25E-12 9.02E-16 8.00E-14 2.00£-14 2.87E-16 2.00£-12 5.00E-13 1.54£-14 4.00E-12 1.00E-12
12/14/1981 1.59E-15 5.00E-12 1.25£-12 5.03E-16 8.00£-14 2.00E-14 1.30£-16 2.00£-12 5.00£-13 2.25£-14 4.00E-12 1.00E-12
3/29/1982 3.76E-16 5.00E-12 1.25E-12 5.25E-16 8.00£-14 2.00£-14 4.08E-16 2.00E-12 5.00E-13 1.96E-14 4.00£-12 1.00E-12
6/30/1982 3.83E-16 5.00E-12 1.25E-12-2.16E-16 8.00E-14 2.00£-14 1.4lE-15 2.00£-12 5.00E-13 2.40£-14 4.00E-12 1.00E-12
9/27/1982 5.95E-16 5.00£-12 1.25E-12 1.44£-15 8.00E-14 2.00£-14 5.36E-16 2.00E 12 5.00E-13 1.43E-14 4.00E-12 1.00E-12
1/3/1983 2.05E-16 5.00E-12 1.25E-12 1.23£-16 8.00E-14 2.00E-14 1.10£-16 2.00E-12 5.00E-13 3.01E-14 4.00E-12 1.00E-12
4/4/1983 1.00E-16 5.00E-12 1.25E-12 6.94E-17 8.00E-14 2.00£-14 6.11E-17 2.00E-12 5.00E-13 1.39E-14 4.00E-12 1.00E-12
6/30/1983 3.06E-16 5.00E-12 1.25E-12 9.59E-17 8.00E-14 2.00E-14 2.08E-16 2.00E-12 5.00E-13 1.70E-14 4.00E-12 1.00£-12
10/3/1983 1.91E-16 5.00E-12 1.25E-12 3.05E-15 8.00E-14 2.00E-14 2.79E-15 2.00E-12 5.00E-13 1.76f.14 4.00£-12 1.00£,12
1/3/1984 3.01E-16 5.00E-12 1.25E-12 9.51£-17 8.00E-14 2.00E-14 1.00E-16 2.00E-12 5.00E-13 9.17E-15 4.00£-12 1.00E-12
4/2/1984 8.22H6 5.00E-12 1.25E-12 7.52E-15 8.00E-14 2.00E-14 5.20E-17 2.00E-12 5.00E-13 3.47E-14 4.00E-12 1.00E-12
7/2/1984 5.29E-16 5.00E-12 1.25E-12 6.18E-16 8.00E-14 2.00E-14 1.40£-15 2.00E-12 5.00£-13 1.32E-14 4.00E 12 1.00E-12
10/1/1984 1.74£-16 5.00E-12 1.25E-12 7.10£-17 8.00E-14 2.00E-14 1.00E-15 2.00E-12 5.00£-13 1.08E-14 4.00E-12-1.00E-12
1/2/1985 1.00E-17 5.00E-12 1.25E-12 7.lOE-17 8.00E-14 2.00E-14 7.80E-17 2.00E-12 5.00E-13 2.73E-14 4.00E-12 1.00E-12
4/1/1985 1.00E-16 5.00E-12 1.25E-12 2.76E-16 8.00E-14 2.00E-14 4.10E-17 2.00E-12 5.00E-13 1.12E-14 4.00£-12 1.00E-12
7/1/1985 1.04E-16 5.00E-12 1.25E-12 1.00E-16 8.00E-14 2.00E-14 1.00£-15 2.00E-12 5.00E-13 1.64£-14 4.00E-12 1.00£-12
9/30/1985 1.00E-16 5.00E-12 1.25E-12 1.00E-15 8.00E-14 2.00E-14 1.00E-16 2.00E-12 5.00E-13 1-73E-14 4.00E-12 1.00E-12
1/2/1986 1.03E-15 5.00E-12 1.25E-12 3.17£-15 8.00E-14 2.00E-14 1.25E-16 2.00E-12 5.00E-13 1.21E-17 4.00E-12 1.00E-12
4/1/1986 8.04E-16 5.00E-12 1.25E-12 1.93E-17 8.00E-14 2.00E-14 1.54E-16 2.00E-12 5.00E-13 1.69E-14 4.00E-12 1.00£-12
6/30/1985 4.29E-16 5.00E-12 1.25E-12 1.77E-15 8.00E-14 2.00E-14 2.83£-15 2.00E-12 5.00E-13 1.97E-14 4.00E-12 1.00E-12
10/27/1986 6.45E-16 5.00E-12 1.25E-12 9.89E-17 8.00E-14 2.00E-14 4.15E-15 2.00E-12 5.00E-13 1.64E-14 4.00E-12 1.00E-12
12/15/1986 1.31E-16 5.00E-12 1.25£-12 O.OOE+OO 8.00E-14 2.00E-14 4.16E-17 2.00£-12 5.00E-13 4.60E-15 4.00£-12 1.00E-12
3/16/1987 2.01E-16 5.00E-12 1.25£-12 1.20E-16 8.00E-14 2.00E-14 5.73E-17 2.00E-12 5.00E-13 1.60E-14 4.00E-12 1.00E-12
5/11/1987 2.16E-16 5.00E-12 1.25E-12 1.96E-16 8.00E-14 2.00E-14 7.38E-17 2.00E-12 5.00£-13 1.59E-14 4.00£-12 1.00E-12
9/9/1987 2.4lE-16 5.00E-12 1.25£-12 2.18E-16 8.00E-14 2.00£-14 3.52E-17 2.00E-12 5.00E-13 1.46£-14 4.00E-12 1.00E-12
11/2/1987 2.44E-16 5.00E-12 1.25E-12 2.32E-16 8.00E-14 2_00E-14 2.37E-17 2.00E-12 5.00E-13 2.48E-14 4.00E 12 1.00E-12
2/16/1988 8.08E-16 5.00E-12 1.25E-12 2.55E-16 8.00E-14 2.00E-14 3.42E-16 2.00E-12 5.00E-13 5.51£-14 4.00E-12 1.00E-12
5/18/1988 1.14E-16 5.00E-12 1.25£-12 4.14E-17 8.00E-14 2.00E-14 1.00E-16 2.00E-12 5.00£-13 1.20E-14 4.00E-12 1.00E-12
8/15/1988 2.08£-15 5.00E-12 1.25E-12 3.05E-16 8.00E-14 2.00E-14 3.65E-17 2.00E-12 5.00E-13 1.36E-14 4.00E-12 1.00E-12
11/14/1988 4.21E-16 5.00E-12 1.25E-12 2.93E-16 8.00E-14 2.00E-14 1.09E-16 2.00E-12 5.00E-13 2.48E-14 4.00H2 1.00E-12
2/13/1989 4.45E-16 5.00E-12 1.25£-12 4.78E-17 8.00E-14 2.00E-14 2.47E-17 2.00E-12 5.00E-13 3.34E-14 4.00E-12 1.00E-12
5/15/1989 1.05E-15 5.00E-12 1.25£-12 1.00E-16 8.00E-14 2.00E-14 2.45E-17 2.00£-12 5.00E-13 6.56E-15 4.00E-12 1.00E-12
8/14/1989 1.3lE-16 5.00E-12 1.25£-12 5.85E-17 8.00E-14 2.00E-14 3.97E-17 2.00£-12 5.00£-13 6.75E-15 4.00£-12 1.00E-12
11/13/1989 1.67£-15 5.00E-12 1_25E-12 3.87E-17 8.00£-14 2.00E-14 8.03E-17 2.00E-12 5.00£-13 1.69E-14 4.00E-12 1.00£-12
2/12/1990 4.43E-16 5.00E-12 1.25E-12 1.00E-15 8.00E-14 2.00E-14 3.50E-17 2.00E-12 5.00E-13 2.37E-14 4.00E-12 1.00E-12
5/14/1990 3.84E-16 5.00E-12 1.25E-12 2.54£-16 8.00E-14 2.00E-14 1.02E-16 2.00E-12 5.00E-13 1.68E-14 4.00E-12 1.00E-12
8/13/1990 7.27E-17 5.00E-12 1.25E-12 2.87E-16 8.00E-14 2.00E-14 1.21E-17 2.00E-12 5.00E-13 7.86E-15 4.00E-12 1.00E-12
11/12/1990 1.84E-16 5.00E-12 1.25E-12 1.34£-16 8.00E-14 2.00E-14 8.53E-17 2.00E-12 5.00E-13 2.01E-14 4.00E-12 1.00E-12
2/11/1991 4.66£-17 5.00E-12 1.25£-12 8.48E-16 8.00E-14 2.00E-14 1.94E-17 2.00£-12 5.00E-13 3.69E-14 4.00E-12 1.00E-12
5/13/1991 5.05E-17 5.00E-12 1.25E-12 7.40E-17 8.00E-14 2.00E-14 7.00E-18 2.00E-12 5.00E-13 1.50E-14 4.00E-12 1.00E-12
8/12/1991 7.14E-17 5.00E-12 1-25E-12 6.22E-17 8.00E-14 2.00E-14 7.95£-17 2.00E-12 5.00E-13 1.77E-14 4.00£·12 1.00£-12
11/11/1991 1.4lE-17 5.00E-12 1.25E-12 2.19E-18 8.00E-14 2.00E-14 2.75E-17 2.00E-12 5.00E-13 1.18E-14 4.00E-12 1.00E-12
2/10/1992 8.12£-17 5.00E-12 1-25E-12 2.35E-17 8.00E-14 2.00E-14 2.76E-18 2.00E-12 5.00E-13 3.57E-14 4.00E-12 1.00E-12
5/11/1992 9.18E-17 5.00E-12 1.25E-12 5.80E-17 8.00E-14 2.00E-14 3.36E-17 2.00E-12 5.00E-13 1.28E-14 4.00£-12 1.00E-12
8/10/1992 2.00E-18 5.00E-12 1.25E-12 4.19E-17 8.00E-14 2.00E-14 2.00E-18 2.00E-12 5.00E-13 1.59£-14 4.00E-12 1.00E-12
11/9/1992 4.00E-17 5.00E-12 1.25E-12 2.68E-17 8.00E-14 2.00E-14 1.07E-17 2.00£-12 5.00E-13 1.81E-14 4.00E-12 1.00E-12
2/9/1993 7.94E-17 5.00E-12 1.25E-12 1.00E-16 8.00E-14 2.00E-14 1.09E-15 2.00£-12 5.00E-13 2.69E-14 4.00E-12 1.00E-12
5/10/1993 1.60E-17 5.00E-12 1.25£-12 5.07E-17 8.00E-14 2.00E-14 7.64E-17 2.00E-12 5.00£-13 1.25E-14 4.00E-12 1.00E-12
8/10/1993 6.00E-17 5.00E-12 1.25E-12 6.00E-18 8.00E-14 2.00E-14 1.00E-16 2.00E-12 5.00E-13 1.50E-14 4.00E-12 1.00£-12
11/8/1993 1.00E-16 5.00E-12 1.25E-12 1.00E-16 8.00E-14 2.00E-14 1.00E-16 2.00E-12 5.00E-13 2.lOE-14 4.00E-12 1.00E-12
2/7/1994 1.6lE-16 5.00E-12 1.25E-12 1.00£-16 8.00E-14 2.00E-14 2.22E-16 2.00E-12 5.00E-13 2.23E-14 4.00£-12 1.00E-12
5/9/1994 2.77E-16 5.00E-12 1.25E-12 2.80E-17 8.00E-14 2.00E-14 8.37E-18 2.00E-12 5.00E-13 1.40E-14 4.00E-12 1.00E-12
8/9/1994 7.39E-17 5.00£-12 1.25E-12 1.00£-16 8.00E-14 2.00E-14 1.14E-16 2.00E-12 5.00E-13 1.00E-15 4.00E-12 1.00E-12
11/7/1994 9.05E-17 5.00E-12 1.25£-12 1.00E-16 8.00E-14 2.00E-14 1.00E-15 2.00£-12 5.00E-13 1.00E-16 4.o0E-12 1.00E-12
2/7/1995 7.99E-17 9.00£-14 2.25E-14 9.60£-17 2.00E-14 5.00E-15 9.50E-17 9.00E-13 2.25E-13 9.05E-15 6.00E-13 1.50E-13
5/9/1995 9.40£-17 9.00E-14 2.25E-14 9.80E-17 2.00E-14 5.00E-15 8.60E·17 9.00£-13 2.25E-13 2.88E-15 5.00E-13 1.50E 13
8/9/1995 7.30£-17 9.00E-14 2.25E-14 9.20E-17 2.00E 14 5.00E-15 4.40E-17 9.00£-13 2.25E-13 1.96£-15 6.00£-13 1.50E-13
Date EffluentConcentration Limit=9E-14 uCijml BHV-3U Effluent Concentration Limit =2E-14 uCijml BHV-3T EffluentConcentrationLimit =9E·13 uCijml BHV-3R EffluentConcentration Limit =6£;-13 uCi/ml BHV-3PB
ALARA Goal =2.25E-14 uCi/ml ALARA Goal =5E-23 uCi/ml ALARAGoal =2.25E-13 uCi/ml ALARA Goal=1.5E-13 uCi/ml
Pre 1994 MPC Limit =5E-12 uCi/ml Pre 1994MPC Limit =8E-14 uCi/ml Pre1994MPC Limit =2E-12 uCi/ml Pre 1994MPC Limit=4E-12 uCi/ml
Pre 1994ALARA GOAL =1.25E·12 uCi/ml Pre 1994ALARA GOAL =5E-13 uCi/ml Pre 1994ALARA GOAL =lE-12uCi/ml
Cone EFC EFCA Cone EFC EFCA Cone EFC EFCA Cone EFC EFCA
11/11/1995 3.16£-16 9.00£-14 2.25E-14 1.31£-16 2.00£-14 5.00£-15 6.58£-17 9.00E-13 2.25£-13 1.9IE-14 6.00E-13 1.50£-13
2/5/1996 3.41£-16 9.00£-14 2.25£-14 2.26£-16 2.00E-14 5.00E-15 1.18£-16 9.00£-13 2.25£-13 2.69£-14 6.00£-13 1.50£-13
5/6/1996 1.31£-16 9.00£-14 2.25£-14 1.39£-16 2.00E-14 5.00E-15 1.82£-16 9.00E-13 2.25£-13 1.53E-14 6.00E-13 1.50E-13
8/5/1996 3.00E-16 9.00E-14 2.25£-14 3.43E-16 2.00E-14 5.00£-15 3.99E-16 9.00£.13 2.25E-13 1.31E-14 6.00E-13 1.50E-13
11/6/1996 3.16E-16 9.00E-14 2.25£-14 1.31E-16 2.00E-14 5.00E-15 6.58E-17 9.00£-13 2.25£-13 1.91£-14 6.00E-13 1.50E-13
2/6/1997 3.41E-16 9.00E-14 2.25£-14 2.26E-16 2.00E-14 5.00E-15 1.18E-16 9.00£-13 2.25E-13 2.69E-14 6.00E-13 1.50E-13
5/5/1997 1.31E-15 9.00E-14 2.25E-14 1.39E-15 2.00E-14 5.00E-15 1.82E-16 9.00£-13 2.25£-13 1.53E-14 6.0oE-13 1.50E-13
8/11/1997 3.00E-16 9.00E-14 2.25E-14 3.43E-16 2.00E-14 5.00E-15 3.99E-16 9.00£-13 2.25E-13 1.31£-14 6.00E-13 1.50E-13
1/5/1998 3.16E-16 9.00E-14 2.25£-14 1.31E-16 2.00E-14 5.00E-15 6.58E-17 9.00E-13 2.25£-13 1.91E-14 6.00E-13 1.50E-13
4/28/1998 3.41£-16 9.00E-14 2.25E-14 2.26£-16 2.00E-14 5.00E-15 1.18E-16 9.00E-13 2.25E-13 2.69E-14 6.00E-13 1.50E-13
7/31/1998 1.31E-16 9.00E-14 2.25E-14 1.39E-16 2.00E-14 5.00E-15 1.82E-16 9.00E-13 2.25E-13 1.53E-14 6.00E-13 1.50E-13
9/28/1998 3.00E-16 9.00E-14 2.25E-14 3.43E-16 2.00E-14 5.00£-15 3.99E-16 9.00£-13 2.25£-13 1.31£-14 6.00£-13 1.50£-13
12/28/1998 3.16E-16 9.00£-14 2.25E-14 1.31E-16 2.00E-14 5.00£+15 6.58E-17 9.00E-13 2.25E-13 1.91£-14 6.00£-13 1.50E-13
3/29/1999 3.41£-16 9.00E-14 2.25E-14 2.26E-16 2.00E-14 5.00£-15 1.18E-16 9.00E-13 2.25£-13 2.69E-14 6.00E-13 1.50£-13
7/3/1999 1.31£-16 9.00E-14 2.25E-14 1.39£-16 2.00E-14 5.00E-15 1.82E-16 9.00E-13 2.25£-13 1.53£-14 6.00£-13 1.50£-13
9/27/1999 3.00£-16 9.00E-14 2.25E-14 3.43£-16 2.00£-14 5.o0E-15 3.99E-16 9.00£-13 2.25£+13 1.31£-14 6.00E-13 1.50E-13
12/28/1999 3.16E-16 9.00E-14 2.25E-14 1.31E-16 2.00E-14 5.00E-15 6.58E-17 9.00£-13 2.25£-13 1.91E-14 6.00£-13 1.50£-13
3/28/2000 3.41£-16 9.00£-14 2.25£-14 2.26£-16 2.00E-14 5.00E-15 1.18£+16 9.00£-13 2.25E-13 2.69E-14 6.00E-13 1.50£~13
6/26/2000 1.31£-16 9.00£·14 2.25£-14 1.39E-16 2.00E-14 5.00£-15 1.82£-16 9.00E-13 2.25E-13 1.53£-14 6.00E-13 1.50£-13
9/26/2000 3.00£-16 9.00E-14 2.25E+14 3.43£-16 2.00£-14 5.00E-15 3.99E-16 9.00£-13 2.25E-13 1.31£-14 6.00E-13 1.50£-13
12/26/2000 3.16£-16 9.00E-14 2.25E-14 1.31£-16 2.00£-14 5.00E-15 6.58E-17 9.00E-13 2.25£-13 1.91E-14 6.00E-13 1.50H3
3/26/2001 3.41E-16 9.00E-14 2.25E-14 2.26£-16 2.00£-14 5.00E·15 1.18£-16 9.00E-13 2.25E-13 2.69£-14 6.00£-13 1.50E-13
7/2/2001 1.31E-16 9.00E-14 2.25£-14 1.39£-16 2.00£-14 5.00£-15 1.82£-16 9.00£-13 2.25£-13 1.53£-14 6.00£-13 1.50E-13
9/24/2001 3.00E-16 9.00£-14 2.25E-14 3.43E-16 2.00E-14 5.00E-15 3.99E-16 9.00E-13 2.25£-13 1.31£-14 6.00E-13 1.50E-13
12/31/2001 3.16E-16 9.00£-14 2.25E-14 1.31E-16 2.00E-14 5.00E-15 6.58E-17 9.00E-13 2.25£-13 1.91E-14 6.00£-13 1.50E-13
4/1/2002 3.41£-16 9.00£-14 2.25E-14 2.26E-16 2.00£-14 5.00£·15 1.18E-16 9.00E-13 2.25E-13 2.69£-14 6.00£-13 1.50£-13
7/1/2002 1.31£-16 9.00E+14 2.25£-14 1.39E~16 2.00£-14 5.00E-15 1.82E-16 9.00E-13 2.25E-13 1.53E-14 6.00£-13 1.50£-13
9/30/2002 3_00E-16 9.00E-14 2.25E-14 3.43E-16 2.00E-14 5.00E-15 3.99E-16 9.00£-13 2.25£-13 1.31£-14 6.00£-13 1.50E-13
12/30/2002 3.16E-16 9.00E-14 2.25£-14 1.31E-16 2.00£-14 5.00E-15 6.58E-17 9.00£-13 2.25£-13 1.91E-14 6.00E-13 1.50E-13
3/31/2003 3.41E-16 9.00E-14 2.25E-14 2.26£-16 2.00E-14 5.00£-15 1.18E 16 9.00E-13 2.25E-13 2.69£-14 6.00£-13 1.50£-13
6/30/2003 1.31£-16 9.00E-14 2.25E-14 1.39£-16 2.00E-14 5.00E-15 1.82£-16 9.00E-13 2.25E-13 1.53E-14 6.00E-13 1.50E-13
9/29/2003 3.00E-15 9.00E-14 2.25£-14 3.43£-16 2.00£-14 5.00E-15 3.99£-16 9.00E-13 2.25£-13 1.31E-14 6.00E-13 1.50£-13
12/29/2003 3.16£-16 9.00E-14 2.25E-14 1.31E-16 2.00E-14 5.00E-15 6.58E-17 9.00E-13 2.25E-13 1.91E+14 6.00£-13 1.50£-13
3/29/2004 3.41E-16 9.00E-14 2.25E-14 2.26E-16 2.00£-14 5.00£-15 1.18E-16 9.00E-13 2.25E-13 2.69E-14 6.00E-13 1.50E-13
5/27/2004 1.31£-16 9.00E-14 2.25E-14 1.39£-16 2.00E-14 5.00£-15 1.82E-16 9.00E-13 2.25E-13 1.53E-14 6.00£-13 1.50E-13
9/27/2004 3.00E-16 9.00E-14 2.25£+14 3.43E-16 2.00E-14 5.00£-15 3.99E-16 9.00E-13 2.25E-13 1.31E-14 6.00E-13 1.50E-13
12/27/2004 3.16£-16 9.00E-14 2.25E-14 1.31E-16 2.00E-14 5.00£-15 5.58£-17 9.00£-13 2.25£-13 1.91E-14 6.00E-13 1.50E-13
3/28/2005 3.41£-16 9.00E-14 2.25E-14 2.26E-16 2.00E-14 5.00E-15 1.18£-16 9.00E-13 2.25£-13 2.69£-14 6.00£-13 1.50E-13
6/29/2005 1.31£-16 9.00£-14 2.25E-14 1.39E-16 2.00E-14 5.00£-15 1.82E-16 9.00E-13 2.25E-13 1.53£-14 6.00E-13 1.50E-13
9/26/2005 3.00£-16 9.00E-14 2.25£-14 3.43£-16 2.00E-14 5.00£-15 3.99£-16 9.00E-13 2.25E-13 1.31£-14 6.00E-13 1.50E-13
1/3/2005 3.16£-16 9.00E-14 2.25£-14 1.31£-15 2.00£-14 5.00E-15 6.58E-17 9.00E-13 2.25E-13 1.91E-14 6.00£-13 1.50£-13
4/3/2006 3.41£-16 9.00E-14 2.25£-14 2.26E-16 2.00E-14 5.00£-15 1.18£-16 9.00E-13 2.25E-13 2.69E-14 6.00E-13 1.50E-13
7/3/2005 1.31E-16 9.00E-14 2.25E-14 1.39£-16 2.00E-14 5.00E-15 1.82.£-16 9.00£-13 2.25E-13 1.53E-14 6.00E-13 1.50£-13
10/2/2006 3.00£-16 9.00E-14 2.25E-14 3.43E-15 2.00£-14 5.00E-15 3.99£+16 9.00E-13 2.25E-13 1.31E-14 6.00E-13 1.50E-13
1/1/2006 3.16E-16 9.00E-14 2.25E-14 1.31£-16 2.00E-14 5.00£-15 6.58£-17 9.00£-13 2.25£-13 1.91E-14 6.00£-13 1.50£-13
4/2/2007 3.41£·16 9.00E-14 2.25£-14 2.26E-16 2.00£-14 5.00E-15 1.18E-16 9.00£-13 2.25E-13 2.69£-14 6.00E-13 1.50£-13
7/2/2007 1.31E-16 9.00£-14 2.25E-14 1.39E-16 2.00E-14 5.00£-15 1.82E-16 9.00£-13 2.25E-13 1.53£-14 6.00£-13 1.50E-13
9/30/2007 3.00E-16 9.00E-14 2.25£-14 3.43E-16 2.00E-14 5.00E-15 3.99E-16 9.00E-13 2.25£-13 1.31£-14 6.00£-13 1.50£-13
12/31/2007 3.16E-16 9.00E-14 2.25£-14 1.31£-16 2.00E-14 5.00£-15 6.58E-17 9.00E-13 2.25£-13 1.91£-14 6.00E-13 1.50£-13
3/31/2008 3.41£-16 9.00£-14 2.25E-14 2.26£-16 2.00E-14 5.00E-15 1.18E-16 9.00E-13 2.25£-13 2.69E+14 6.00E-13 1.50£-13
6/30/2008 1.31£-16 9.00E-14 2.25£-14 1.39£-16 2.00E-14 5.00£-15 1.82£-16 9.00£-13 2.25£-13 1.53E-14 6.00E-13 1.50E-13
9/30/2008 3.00E-16 9.00£-14 2.25£-14 3.43E-16 2.00£-14 5.00E-15 3.99£-16 9.00E-13 2.25E-13 1.31£-14 6.00E-13 1.50E-13
12/31/2008 3.16£-16 9.00£-14 2.25E-14 1.31E-16 2.00E-14 5.00E-15 6.58E-17 9.00E-13 2.25£-13 1.91£-14 6.00E-13 1.50E-13
3/15/2009 3.41E-16 9.00E-14 2.25E-14 2.26E-16 2.00E~14 5.00E-15 1.18E-16 9.00E-13 2.25E-13 2.59E-14 6.00£-13 1.50E-13
6/15/2009 1.31£-16 9.00E-14 2.25£-14 1.39H6 2.00E-14 5.00£-15 1.82£-16 9.00E-13 2.25E-13 1.53£-14 6.00£-13 1.50£-13
9/15/2009 3.00E-15 9.00£-14 2.25£-14 3.43£-16 2.00E-14 5.00£-15 3.99£-16 9.00£-13 2.25£~13 1.31£-14 6.00E-13 1.50£-13
12/15/2009 3.16E-16 9.00E-14 2.25E-14 1.31E-16 2.00E-14 5.00E-15 6.58E-17 9.00E-13 2.25£-13 1.91E-14 6.00E-13 1.50E-13
Date Effluent Concentration limit =9E-14 uCi/ml BHV-3U EffluentConcentrationlimit=2E-14 uCi/mJ BHV-3T EffluentConcentration limit =9E-13 uCi/ml BHV-3R EffluentConcentration limit=6E-13 uCi/ml BHV·3PB
ALARAGoal =2.25E-14uCi/ml ALARAGoal =5E-13 uCi/ml ALARAGoal =2.25E-13uCi/ml ALARAGoal =1.5E·13 uCi/ml
Pre1994 MPC limit=5E-12 uCi/ml Pre 1994 MPC limit=8E-14 uCi[ml Pre 1994MPC limit =2E-12 uCi/ml Pre 1994MPC limit=4E-12 uCi/ml
Pre1994ALARA GOAL =1.25E-12uCi/ml Pre 1994ALARA GOAL =5E-13 uCi/ml Pre 1994ALARA GOAL =lE-12uCi/ml
Conc ,Fe EFCA Conc ,Fe EFC A Cone EFC EFCA Conc EFC EFCA
3/31/2010 3.41E-16 9.00E-14 2.25E-14 2.26H6 2.00E-14 5.00E-15 1.18E-16 9.00E·13 2.25E-13 2.69E-14 6.00E-13 1.50E-13
6/30/2010 1.31E-16 9.00E-14 2.25E 14 1.39E-16 2.00E-14 5.00E·15 1.82E-16 9.00E-13 2.25E 13 1.53E-14 6.00£-13 1.50£-13
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Effluent Concentration Limit =9E-14 uCi/ml
ALARA Goal =2.25E-14 uCi/ml
Pre 1994 MPC Limit =5E-12uCi/ml
Pre 1994ALARA Goal =1.25E-12 uCi/ml
BHV-3 Uranium-Natural Concentrations (uCi/ml)
1.00E-12
1.00E-13
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Cl.3~1.00E-15
1.00E-16
1.00E-17
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1.00E-11
Effluent Concentration Limit =2E-14 uCi/ml
ALARA Goal =5E-13 uCi/ml
Pre 1994 MPC Limit =8E-14uCilml
BHV-3 Thorium-230 Concentrations (uCi/ml)
1.00E-12
1.00E-13
_1.00E-14CD~en
Clo...J~1.00E-15
1.00E-16
1.00E-17
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Effluent Concentration Limit =9E-13 uCl/ml
ALARA Goal =2.25E-13 uCl/ml
Pre 1994 MPC Limit =2E-12uCl/ml
Pre 1994ALARA Goal =5E-13 uCi/ml
BHV-3 Radium-226 Concentrations (uCi/ml)
1.00E-12
1.00E-13
_1.00E-14
Ol~(J)
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1.00E-16
1.00E-17
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1.00E-11
EffluentConcentration Limit =6E-13 uCilml
ALARA Goal =1.5E-13 uCilml
Pre 1994 MPC Limit=4E-12uCilml
Pre 1994ALARA Goal =1E-12 uCilml
BHV-3 Lead-210 Concentrations (uCi/ml)
1.00E-12
1.00E-13
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1.00E-15
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TAB 4
BHV-4 AIR SAMPLING GRAPHS AND DATA TABLE

Date EffluentConcentration limit=9E-14 uCi/ml BHV-4U Effluent Concentration Limit =2E-14 uCi/ml BHV·4T Effluent Concentration Limit =9E-13 uCi/ml BHV-4R EffluentConcentration Limit:::6E-13 llCi/ml BHV-4PB
ALARAGoal =2.25E-1411Ci/ml ALARA Goal =5E-13 uCi/ml ALARA Goal =2.25E-13 llCi/ml ALARA Goal =1.5E-13 uCi/ml
Pre 1994 MPC Limit =5E-12 llCi/ml Pre1994MPC limit =8E-14 uCi/ml Pre1994 MPC Limit=2E-1211Ci/ml Pre 1994 MPC Limit =4E-12 llCi/ml
Pre 1994 ALARA GOAL=1.25E-12 uCi/ml Pre1994ALARA GOAL =5E-13 uCi/ml Pre 1994 ALARA GOAL=1E-12 uCi/ml
Cone EFC EFCA Cone EFC EFCA Cone EFC EFCA Cone EFC EFCA
9/28/1981 5.20£-15 5.00£-12 125H2 2.93£-15 8.00£·14 2.00E-14 2.74£-15 2.00£-12 5.00E-13 1.84E-14 4.00£-12 1.00£-12
12/14/1981 4.53£-15 5.00E-12 1.25E-12 1.78E-15 8.00E-14 2.00£-14 2.29E·15 2.00£-12 5.00E-13 2.54£-14 4.00£-12 1.00E-12
3/29/1982 1.06E-15 5.00E-12 1.25E-12 1.42E-14 8.00£-14 2.00£-14 1.07E-15 2.00£-12 5.00£·13 2.31£-14 4.00£-12 1.00E-12
6/30/1982 6.03E-15 5.00£-12 1.25E-12 1.57E-14 8.00E-14 2.00£-14 2.62E-15 2.00E-12 5.00E-13 2.25E-14 4.00E-12 1.00£-12
9/27/1982 1.26E·14 5.00£-12 1.25£-12 7.58E-15 8.00E-14 2.00£-14 5.35E-15 2.00£-12 5.00£-13 2.58E-14 4.00E-12 1.00£-12
1/3/1983 4.33E-15 5.00E-12 1.25E-12 6.52E-16 8.00E-14 2.00£-14 6.04E-16 2.00E-12 5.00£-13 2.57£-14 4.00E-12 1.00£-12
4/4/1983 1.25E-15 5.00E-12 1.25E-12 7.17E-16 8.00£-14 2.00£-14 6.76E-16 2.00£-12 5.00E-13 2.00E-14 4.00E-12 1.00E-12
6/30/1983 3.73E-16 5.00E-12 1.25E-12 9.43E-16 8.00£-14 2.00E-14 4.13E-16 2.00E-12 5.00E-13 1.20E-14 4.00E-12 1.00E-12
10/3/1983 2.54E-16 5.00E-12 1.25£-12 1.51E-16 8.00E-14 2.00£-14 2.65E-16 2.00E-12 5.00E-13 2.50£-14 4.00E-12 1.00E-12
1/3/1984 2.76E-15 5.00£-12 1.25£-12 1.60£-16 8.00£-14 2.00£-14 1.05E-16 2.00E-12 5.00£-13 1.59E-16 4.00E-12 1.00E-12
4/2/1984 4.27E-16 5.00E-12 1.25£-12 2.33£-16 8.00E-14 2.00£-14 6.28E-16 2.00E-12 5.00£-13 3.67E-14 4.00E-12 1.00E-12
7/2/1984 2.57£-15 5.00£-12 1.25£-12 1.36£-16 8.00E-14 2.00£-14 1.11£-16 2.00£-12 5.00£-13 1.58E-14 4.00E-12 1.00£-12
10/1/1984 4.18E-16 5.00E-12 1.25E-12 3.54E-16 8.00E-14 2.00E-14 1.1OE-17 2.00£-12 5.00E-13 9.83£-15 4.00E-12 1.00£-12
1/2/1985 5.30E-17 5.00£-12 1.25£-12 3.55E-17 8.00E-14 2.00E-14 7.00E-18 2.00E-12 5.00E-13 2.57£14 4.00£-12 1.00E-12
4/1/1985 1.00E-16 5.00E-12 1.25E-12 6.00E-16 8.00E-14 2.00E-14 4.35E-17 2.00E-12 5.00E-13 5.02£-15 4.00E-12 1.00E-12
7/1/1985 9.36E-16 5.00E-12 1.25E-12 2.33E-16 8.00E-14 2.00£14 2.36E-16 2.00£-12 5_00£-13 7.48E-15 4.00E-12 1.00£-12
9/30/1985 1.46E-15 5.00E-12 1.25E-12 7,69E-16 8.00E-14 2.00£-14 5.38£-16 2.00£-12 5.00£-13 7.86£-15 4.00E-12 1.00E-12
1/2/1986 8.40E-15 5.00E-12 1.25E-12 7.60£-16 8.00£-14 2.00£-14 2.99E-16 2.00E-12 5.00E-13 2.12£-14 4.00£-12 1.00E-12
4/1/1986 5.79£-15 5.00£-12 1.25H2 5.80£-16 8.00E-14 2.00E-14 1.34£-15 2.00£-12 5.00£-13 1.33E-14 4.00E-12 1.00E-12
6/30/1986 5.19E-15 5.00E-12 1.25£-12 7.83E-16 8.00E-14 2.00E-14 2_20£-15 2.00E-12 5_00£-13 7.14E-16 4.00£-12 1.00E-12
10/27/1986 4.60£-15 5.00£-12 1.25E-12 4.67E-16 8.00E-14 2.00£-14 2.37E-15 2.00E-12 5.00E-13 1.13E-14 4.00£-12 1.00£-12
12/15/1986 2.75£-15 5.00£-12 1.25£-12 5.90E-16 8.00E-14 2.00H4 9.39£-16 2.00E-12 5.00£-13 1.20E-14 4.00E-12 1.00E-12
3/16/1987 4.64£-15 5.00E-12 1.25E-12 1.18E-15 8.00£-14 2.00E-14 4.97£-16 2.00E-12 5.00E-13 5.89£-14 4.00E-12 1.00E-12
5/11/1987 4.35E IS 5.00E-12 1.25E-12 1.23£-14 8.00E-14 2.00£-14 1.13E-15 2.00£-12 5.00E-13 2.21E-14 4.00E-12 1.00£-12
9/9/1987 6.39E-15 5.00£-12 1.25E-12 1_50£-14 8.00E-14 2.00£-14 2.26E-15 2.00£-12 5.00£-13 1.57£-14 4.00£-12 1.00E-12
11/2/1987 6.72E-15 5.00£-12 1.25£-12 4.53E-16 8.00E-14 2.00£-14 2.20E-15 2.00£-12 5.00£-13 2.55E-14 4.00£-12 1.00E-12
2/16/1988 1.9lE-15 5.00£-12 1.25E-12 1.35£-14 8.00£-14 2.00E-14 4.42£-16 2.00£-12 5.00E-13 4.44E-14 4.00£-12 1.00E-12
5/18/1988 1.78£-14 5.00£-12 1.25E-12 4.39E-14 8.00£-14 2.00E-14 4.92£-16 2.00£-12 5.00E-13 1.38E-14 4.00£-12 1.00£-12
8/15/1988 7.56£-15 5.00E-12 1.25E-12 3.3lE-14 8.00E-14 2.00£-14 1.5lE·15 2.00£-12 5.00E-13 1.97E-14 4.00£-12 1.00£-12
11/14/1988 1.47£-14 5.00E-12 1.25£-12 1.56£-15 8.00E-14 2.00£-14 2.57E-15 2.00E-12 5.00E-13 2.12E-14 4.00E-12 1.00E-12
2/13/1989 2.47E-15 5.00£-12 1.25£-12 3_14£-15 8.00E-14 2.00E-14 6.94£-16 2.00E-12 5.00£-13 2.12E-14 4.00£-12 1.00E-12
5/15/1989 2.50E-16 5.00£-12 1.25E-12 7.68E-15 8.00E-14 2.00E-14 9.03E-16 2.00E-12 5.00E-13 8.05E-15 4.00E-12 1.00E-12
8/14/1989 6.50E-15 5.00E 12 1.25E-12 4.72£-15 8.00E-14 2.00E-14 2.35£-15 2.00£-12 5.00E-13 9.95E-15 4.00E-12 1.00£-12
11/13/1989 9.63E-15 5.00£-12 1.25E 12 4.05£-15 8.00E-14 2.00E-14 4.03E-15 2.00£-12 5.00E-13 1.99£-14 4.00E-12 1.00E-12
2/12/1990 8.92E-15 5.00E-12 1.25£-12 3.56E-15 8.00E-14 2.00E-14 2.89E-15 2.00E-12 5.00E-13 2.69E-14 4.00E-12 1.00E-12
5/14/1990 8.90E-15 5.00£-12 1.25E-12 3.58E-15 8.00E-14 2.00E-14 2.33£-15 2.00E-12 5.00E-13 2.09£-14 4.00E-12 1.00£-12
8/13/1990 1.92E-15 5.00E-12 1.25£-12 1.87E-15 8.00E-14 2.00E-14 5.06£-16 2.00E-12 5.00E-13 8.86E-15 4.00£-12 1.00E-12
11/12/1990 2.9lE-15 5.00E-12 1.25E-12 2.25E,17 8.00E-14 2.00£-14 1.08£-15 2.00E-12 5.00E-13 2.19£-14 4.00£-12 1.00E-12
2/11/1991 1.67E-16 5.00£-12 1.25£-12 7.89E-16 8.00E-14 2.00£-14 6.38£-17 2.00£-12 5.00E-13 4.19E-14 4.00E-12 1.00E-12
5/13/1991 1,87E-16 5.00E-12 1.25£-12 2.GlE-15 8.00E-14 2.00E-14 3.54£-16 2.00E 12 5.00£-13 1.40£-14 4.00£-12 1.00£-12
8/12/1991 4.85E-16 5.00E-12 1.25£-12 4.38£-16 8.00£-14 2.00£-14 1.27E-16 2.00£-12 5.00£-13 2.20E-14 4.00£-12 1.00E-12
11/11/1991 1.77£-16 5.00£-12 1.25£-12 1.46E-16 8.00E-14 2.00£-14 3.76E-17 2.00£-12 5.00E-13 1.15E-14 4.00£-12 1.00E-12
2/10/1992 1.83£-16 5.00£-12 1.25£-12 1.95E-15 8.00£-14 2.00£-14 1.33£-16 2.00E-12 5.00E-13 3.35£-14 4.00E-12 1.00£-12
5/11/1992 4.40£-16 5.00£-12 1.25£-12 2.56£-16 8.00E·14 2.00E-14 4.04£-16 2.00£-12 5.00£-13 1.41£-14 4.00E-12 1.00£-12
8/10/1992 9.09£-17 5.00E-12 1.25E-12 1.15E-16 8.00£-14 2.00E-14 4.50£-17 2.00E-12 5.00E-13 1.57£-14 4.00E-12 1.00E-12
11/9/1992 2.07E-16 5.00£-12 1.25£-12 1.00E-16 8.00E-14 2.00E-14 3.62E-17 2.00E-12 5.00E-13 2_24E-14 4.00£-12 1.00E-12
2/9/1993 1.73E-16 5.00E-12 1.25£-12 2.76E-17 8.00E-14 2.00£-14 2.89£-17 2.00£-12 5.00E-13 3.08£-14 4.00E-12 1.00E-12
5/10/1993 2.70£-17 5.00£-12 1.25E-12 2.50E-17 8.00£-14 2.00E-14 8.74E-17 2.00£-12 5.00£-13 1.25£-14 4.00£-12 1.00£-12
8/10/1993 9,00E-17 5.00E-12 1.25E-12 1.76£-16 8.00£-14 2.00£-14 0.00£+00 2.00£-12 5.00E-13 1.50E-14 4.00E-12 1.00£-12
11/8/1993 1.00E-16 5.00E-12 1.25£-12 1.00£-16 8.00E-14 2.00£-14 6.00£-17 2.00£-12 5.00£-13 1.75£-14 4.00£-12 1.00£-12
2/7/1994 1.10£-16 5.00E-12 1.25£-12 3.38£-16 8.00E-14 2.00£-14 2.21E-16 2.00£-12 5.00£-13 3.08£-14 4.00E-12 1.00E-12
5/9/1994 3.80£-16 5.00£-12 1.25£-12 2.82E-16 8.00E-14 2.00£-14 3.46E-16 2.00E-12 5.00E-13 1.73E-14 4.00E-12 1.00£-12
8/9/1994 3.85£-16 5.00£-12 1.25£-12 3.53£-16 8.00£-14 2.00E-14 1.00E-16 2.00£-12 5.00E-13 1.00E-16 4.00E-12 1.00E-12
11/7/1994 6.2lE-17 5.00E-12 1.25£-12 9.70E-17 8.00E-14 2.00E-14 1.96E-16 2.00E-12 5.00£-13 1.00E-16 4.00E-12 1.00£-12
2/7/1995 3.70E-16 9.00£-14 2.25£-14 9.80E-17 2.00£-14 5.00E-15 9.70£-17 9.00£-13 2.25£-13 8.84£-15 6.00£-13 1.50E-13
5/9/1995 9.40E-17 9.00E-14 2.25E-14 2.86E-16 2.00£-14 5.00£-15 1.90£-16 9.00E-13 2.25E-13 2.90E-15 6.00£-13 1.50£-13
8/9/1995 1.45E-16 9.00£-14 2.25E-14 2.31E-15 2.00£-14 5.00£-15 7.10E-17 9.00E-13 2.25£-13 2.70E-15 6.00E-13 1.50E-13
Date Effluent Contentration Limit =9E-14 uCi/ml BHV-4U Effluent Contentration Limit =2E-14 uCi/ml 6HV-4T Effluent Contentration Limit =9E-13 uCi/ml BHV-4R EffluentContentrationLimit =6E-13 uCi/ml BHV-4PB
ALARAGoal =2.25E·14 uCi/ml ALARAGoal=5E-13 uCi/ml ALARA Goal =2_25E-13 uCi/ml ALARAGoal =1.5E-13 uCi/ml
Pre 1994 MPC Limit =5E-12 uCijml Pre1994MPC Limit =8E-14 uCijml Pre1994 MPC Limit=2E-12 uCi/ml Pre1994 MPC Limit=4E-12 uCijml
Pre 1994ALARA GOAL =1.25E-12 uCi/ml Pre 1994 ALARA GOAL =5E-13 uCijml Pre 1994 ALARA GOAL =1E-12 uCijml
Cone EfC EFC A Cone EfC EFCA Cone EFC EFCA Cone EFC EFCA
lljll/1995 1.43£-14 9.00£-14 2.25£-14 5.70£-15 2.00£-14 5.00£-15 2.6IE-15 9.00£-13 2.25£-13 5.60£-15 6.00£-13 1.50£-13
2/5j1996 1.19£-14 9.00£-14 2.25£-14 3.80E-16 2.00£-14 5.00£-15 6.10£-15 9.00£-13 2.25£-13 5.48£-15 6.00£-13 1.50£-13
5/6/1996 4.55£.16 9.00£-14 2.25£-14 3.57£-15 2.00£-14 5.00£-15 2.84£-16 9.00£-13 2.25£-13 7.68E-15 6.00£-13 1.50E-13
8/5/1996 7.78E-16 9.00£-14 2.25£.14 3.5IE-15 2.00E-14 5.00E-15 1.69£-16 9.00£-13 2.25£-13 4.90E-15 6.00£.13 1.50£-13
11/6/1996 1.36£-15 9.00E-14 2.25E-14 1.00£-16 2.00£-14 5.00£-15 4.21E-16 9.00£-13 2.25£-13 1.10£-14 6.00£-13 1.50£-13
2/6/1997 1.00£-16 9.00E-14 2.25£.14 1.40£-16 2.00£·14 5.00£-15 1.03£-16 9.00£-13 2.25£-13 6.76E-15 6.00£-13 1.50£-13
5/5/1997 1.00£-16 9.00£-14 2.25£-14 4.00£-16 2.00£-14 5.00£-15 2.24£-16 9.00E-13 2.25H3 4.55£-15 6.00£-13 1.50£-13
8/11/1997 4.74£-16 9.00£-14 2.25£-14 9.07£-16 2.00£-14 5.00£-15 1.00£-16 9.00£-13 2.25£-13 5.55£-15 6.00£.13 1.50£-13
1/5/1998 8.31£-16 9.00£-14 2.25£-14 4.82£-16 2.00£-14 5.00£-15 1.77£16 9.00£-13 2.25£-13 5.28£-15 6.00£-13 1.50£-13
4/28/1998 3.32£-16 9.00£-14 2.25£-14 4.43£-15 2.00£-14 5.00£-15 1.21E-16 9.00£-13 2.25£-13 7.43£-15 6.00£-13 1.50£-13
7/31/1998 4.60£-16 9.00£-14 2.25E-14 9.02£-16 2.00E-14 5.00£-15 3.54E-16 9.00£-13 2.25£-13 6.91£-15 6.00£-13 1.50£-13
9/28/1998 4.08£-16 9.00£-14 2.25E-14 4.93£-16 2.00£-14 5.00£-15 2.53£-16 9.00£-13 2.25£-13 4.52£-15 6.00£-13 1.50£-13
12/28/1998 7.72£-16 9.00£-14 2.25£-14 3.75E-16 2.00£-14 5.00E-15 3.43£-16 9.00E-13 2.25£-13 6.73£-15 6.00£-13 1.50£-13
3/29/1999 5.11£-16 9.00£-14 2.25£-14 4.70E-16 2.00£-14 5.00E-15 3.70£-16 9.00E-13 2.25£.13 8.96£-15 6.00£-13 1.50£-13
7/3/1999 5.90£-16 9.00£-14 2.25£-14 9.89£-16 2.00£-14 5.00£-15 1.28£.16 9.00E-13 2.25E-13 6.40£-15 6.00£13 1.50£-13
9/27/1999 1.70£-15 9.00£-14 2.25£-14 7.50£-16 2.00£-14 5.00E-15 4.61£-16 9.00£-13 2.25£-13 7.86E-15 6.00£-13 1.50£-13
12/28/1999 1.03£-15 9.00E-14 2.25£-14 7.50E-16 2.00£-14 5.00£-15 2.43£-16 9.00£-13 2.25£-13 6.42E-15 6.00£-13 1.50£-13
3/27/2000 1.00£.16 9.00£-14 2.25£-14 2.13£-16 2.00£-14 5.00£-15 2.20£-16 9.00£-13 2.25£-13 5.61£-15 6.00£-13 1.50£-13
6/26/2000 1.75£-16 9.00£.14 2.25£-14 3.08£-16 2.00£-14 5.00£-15 1.11£-16 9.00£-13 2.25£-13 3.92£-15 6.00£-13 1.50£-13
9/26/2000 3.65£-16 9.00£14 2.25£-14 2.01£-16 2.00£-14 5.00£-15 2.24£-16 9.00£-13 2.25£-13 7.79£-15 6.00£-13 1.50E-13
12/26/2000 2.27E-16 9.00£-14 2.25£-14 1.00E-16 2.00£-14 5.00£.15 4.35£-16 9.00E-13 2.25£-13 8.45E-15 6.00E-13 1.50E-13
3/26/2001 1.45E-16 9.00E-14 2.25E-14 1.00E-16 2.00£-14 5.00E-15 1.00E-16 9.00£-13 2.25£-13 6.37£-15 6.00£-13 1.50£-13
7/2/2001 1.00E-16 9.00£-14 2.25£-14 1.05£-16 2.00£-14 5.00E-15 1.00£-16 9.00£-13 2.25£-13 6.99E-15 6.00E-13 1.50£-13
9/24/2001 1.91£-16 9.00£-14 2.25£-14 1.00£-16 2.00E-14 5.00£-15 2.01£-15 9.00£-13 2.25£-13 8.04£-15 6.00£-13 1.50£-13
12/31/2001 1.38£-16 9.00E-14 2.25£-14 2.05£-16 2.00£-14 5.00£-15 1.00£-16 9.00£-13 2.25£-13 1.83£-15 6.00£-13 1.50£-13
4/1/2002 2.20£-16 9.00E-14 2.25E-14 3.38£-16 2.00£-14 5.00£-15 1.26£-16 9.00E-13 2.25£-13 7.48£-15 6.00£-13 1.50£-13
7/1/2002 1.97£-16 9.00£-14 2.25£-14 4.10£-16 2.00£-14 5.00£-15 1.00E-16 9.00£-13 2.25H3 7.40£-15 6.00£-13 1.50£-13
9/30/2002 2.30£-16 9.00£-14 2.25E-14 2.42£-16 2.00£-14 5.00£-15 1.56£-16 9.00E·13 2.25£-13 4.21£-15 6.00£-13 1.50£-13
12/30/2002 1.00£-16 9.00£-14 2.25E-14 1.92£-16 2.00£-14 5.00£-15 1.00£-16 9.00£-13 2.25£-13 9.42£-15 6.00£-13 1.50£-13
3/31/2003 2.50£-16 9.00£-14 2.25£-14 1.59£-16 2.00£-14 5.00£-15 1.29£-15 9.00£-13 2.25£-13 4.55£-15 6.00£-13 1.50£-13
6/30/2003 1.00£-16 9.00£-14 2.25£-14 2.87E-16 2.00£-14 5.00£-15 1.00£-16 9.00£-13 2.25£.13 4.20£-15 5.00£-13 1.50£-13
9/29/2003 1.00£-16 9.00£-14 2.25E-14 8.53£-16 2.00£-14 5.00£-15 3.32£-16 9.00£-13 2.25£-13 8.59£-15 6.00£-13 1.50£-13
12/29/2003 1.02£-16 9.00£-14 2.25E-14 1.00£-16 2.00£-14 5.00£-15 1.49£-15 9.00£-13 2.25£-13 9.45£-15 6.00£-13 1.50£-13
3/29/2004 1.00E-16 9.00£-14 2.25E-14 1.26£-16 2.00£-14 5.00£-15 1.00£-16 9.00£-13 2.25£-13 2.00£-15 6.00E-13 1.50£-13
6/27/2004 1.00£-16 9.00£-14 2.25£-14 2.53£-16 2.00£-14 5.00£-15 1.00£-16 9.00£-13 2.25£-13 3.23£-15 6.00£-13 1.50E-13
9/27/2004 1.00£-16 9.00£-14 2.25£-14 1.15£-16 2.00£-14 5.00£-15 1.00E-16 9.00£-13 2.25£-13 9.68£-15 6.00£.13 1.50£-13
12/27/2004 1.00£-16 9.00£-14 2.25£-14 2.30£-16 2.00£-14 5.00£-15 1.00E-16 9.00E-13 2.25E-13 1.37£-14 6.00E-13 1.50£-13
3/28/2005 1.00£-16 9.00£-14 2.25£-14 2.66£-16 2.00£-14 5.00£-15 3.15£-16 9.00£-13 2.25£.13 9.22£-15 6.00E-13 1.50£-13
6/29/2005 1.47E-16 9.00£-14 2.25£-14 1.45£-15 2.00£-14 5.00£-15 1.42E-16 9.00£-13 2.25£-13 9.34£-15 6.00£-13 1.50E-13
9/26/2005 2.01£-16 9.00£-14 2.25£-14 2.06£-16 2.00£-14 5.00£-15 4.80£-16 9.00£-13 2.25£-13 2.12£-14 6.00£-13 1.50£-13
1/3/2006 4.54£-16 9.00£-14 2.25£-14 1.24£-16 2.00E-14 5.00£-15 1.00E-16 9.00£-13 2.25£-13 3.60£-14 6.00£-13 1.50£-13
4/3/2006 1.99£-16 9.00£-14 2.25E-14 1.32£-16 2.00£-14 5.00£-15 1.00£-16 9.00£-13 2.25£-13 8.36£-15 6.00£-13 1.50£-13
7/3/2006 2.76E-16 9.00£-14 2.25E-14 2.63£-16 2.00£-14 5.00£-15 1.00E-16 9.00E-13 2.25£-13 1.03£-14 6.00£-13 1.50£-13
10/2/2006 4.97£-16 9.00£-14 2.25£-14 2.37£-16 2.00£-14 5.00£-15 1.00£-16 9.00£-13 2.25£-13 1.60£-14 6.00£-13 1.50£-13
1/1/2007 6.46£-16 9.00£-14 2.25E-14 2.81£-16 2.00£-14 5.00£-15 1.00£-16 9.00£-13 2.25£-13 2.10£-14 6.00£-13 1.50£-13
4/2/2007 7.08£-16 9.00£-14 2.25£-14 3.20£-16 2.00£-14 5.00£-15 1.00£-16 9.00£-13 2.25£-13 1.54£-14 6.00£-13 1.50£-13
7/2/2007 9.41£-16 9.00£-14 2.25£-14 1.46£-16 2.00£-14 5.00£-15 1.99£-15 9.00£·13 2.25£-13 2.56£-14 6.00£-13 1.50£-13
9/30/2007 3.30£-16 9.00£-14 2.25£-14 5.50£-16 2.00£-14 5.00£-15 1.00£-16 9.00£-13 2.25£-13 7.57£-15 6.00£-13 1.50£-13
12/31/2007 1.42 £-15 9.00£-14 2.25£-14 1.00£-16 2.00£-14 5.00£-15 1.00£-16 9.00£-13 2.25£-13 9.93£-15 5.00£-13 1.50£-13
3/31/2008 1.25£-16 9.00E-14 2.25£-14 7.72E-16 2.00£-14 5.00E-15 1.00£-16 9.00£-13 2.25£-13 4.09£-15 6.00£-13 1.50£-13
6/30/2008 1.28£-15 9.00£-14 2.25£-14 1.00£-16 2.00£-14 5.00£-15 3.61£-16 9.00£-13 2.25£-13 1.18£-14 6.00£-13 1.50£-13
9/30/2008 9.00£-14 2.25£-14 2.00£-14 5.00E-15 9.00£-13 2.25£-13 6.00£-13 1.50£-13
12/31/2008 9.00£-14 2.25E-14 2.00£-14 5.00£-15 9.00£-13 2.25£-13 6.00£-13 1.50£-13
3/15/2009 1.56£-15 9.00£-14 2.25£-14 4.57E-16 2.00£-14 5.00£-15 2.99£-16 9.00£-13 2.25£-13 4.97£-15 6.00£-13 1.50£-13
6/15/2009 5.67£-17 9.00£-14 2.25£-14 2.17£-16 2.00£-14 5.00£-15 1.51£-16 9.00£-13 2.25£-13 4.47£-15 6.00£-13 1.50£-13
9/15/2009 4.05E-15 9.00£-14 2.25£-14 1.45£-15 2.00£-14 5.00£-15 2.52£-16 9.00£-13 2.25E-13 1.24£-14 6.00£-13 1.50E-13
12/15/2009 6.50£-15 9.00£-14 2.25£-14 3.48£-16 2.00£-14 5.00E-15 1.33£-16 9.00£-13 2.25£-13 7.60E-15 6.00£-13 1.50£-13
Date EffluentConcentration Limit =9E·14 uCi/ml BHV·4U EffluentConcentration Limit=2E·14 uCi/mJ BHV·4T Effluent Concentration Limit=9E·13 uCi/ml BHV·4R Effluent Concentration Limit=6E-13 uCi/ml BHV-4PB
ALARA Goal=2.25E·14 uCi/ml ALARA Goal =5E·13 uCi/ml ALARAGoal =2.25E-13 uCi/ml ALARAGoal =1.5E·13uCi/ml
Pre 1994MPC Limit=SE-12 uCi/ml Pre 1994 MPC Limit =8E-14 uCi/ml Pre 1994 MPC Limit=2E·12 uCi/ml Pre 1994MPC Limit=4E-12 uCi/ml
Pre 1994 ALARA GOAL =1.2SE-12 uCi/ml Pre 1994ALARA GOAL =5E·13 uCi/ml Pre 1994ALARA GOAL =1E-12 uCi/ml
Cone EFC EFCA Cone EFC EFCA Cone EFC EFCA Cone EFC EFCA
3/31/2010 6.01E·15 9.00E-14 2.25E-14 1.26E-16 2.00E-14 S.00E-15 1.34E-16 9.00E·13 2.2SE-13 1.19E-14 6.00E·13 1.S0E·13
6/30/2010 2.33HS 9.00E-14 2.2SE-14 7.29H6 2.00E-14 S.00E-15 2.66E·16 9.00E-13 2.2SE-13 3.27E 15 6.00E·13 1.50E·13
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1.00E-11
Effluent Concentration Limit =9E-14 uCi/ml
ALARA Goal =2.25E-14 uCi/ml
Pre 1994 MPC Limit =5E-12uCi/ml
Pre 1994 ALARA Goal =1.25E-12 uCilml
BHV-4 Uranium-Natural Concentrations (uCi/ml)
1.00E-12
1.00E-13
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1.00E-15
1.00E-16
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1.00E-11
Effluent Concentration Limit =9E-13 uCilml
ALARA Goal =2.25E-13 uCi/ml
Pre 1994 MPC Limit=2E-12uCilml
Pre 1994 ALARA Goal =5E-13 uCi/ml
BHV-4 Radium-226 Concentrations (uCi/ml)
1.00E-12
1.00E-13
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Olo...J~1.00E-15
1.00E-16
1.00E-17
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1.00E-11
Effluent Concentration Limit =6E-13 uCi/ml
ALARA Goal =1.5E-13 uCi/ml
Pre 1994 MPC Limit =4E-12uCi/ml
Pre 1994 ALARA Goal =1E-12 uCi/ml
BHV-4 Lead-210 Concentrations (uCi/ml)
1.00E-12
1.00E-13
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1.00E-15
1.00E-16
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TAB 5
BHV-5 AIR SAMPLING GRAPHS AND DATA TABLE

Date EffluentConcentration limit=9E-14 uCijml BHV-5U Effluent Concentration Limit =2E-14 uCi/ml BHV-5T Effluent Concentration Limit =9E-13 uCijml BHV-5R EffluentConcentration limit=6E-13 uCi/ml BHV·5PB
ALARAGoal=2.25E-14 uCi/ml ALARAGoal =5E-13 uCi/ml ALARA Goal =2.25E-13 uCi/ml ALARAGoal =1.5E-13 uCi/ml
Pre1994 MPC Limit =5E-12 uCi/ml Pre 1994MPC limit=8E-14uCijml Pre 1994MPC limit=2E-12 uCi/ml Pre1994MPC Limit =4E-12 uCi/ml
Pre1994ALARA GOAL =1.25E-12uCi/ml Pre 1994ALARAGOAL =5£-13uCi/ml Pre1994ALARA GOAL =1E-12 uCi/ml
Cone <Fe EFC A Cone <Fe EFCA Cone <Fe EFC A Cone <Fe EFCA
9/28/1981 2.44E-15 5.00£·12 1.25£-12 1.53E-15 8.00£-14 2.00E-14 7.54E·16 2.00E-12 5.00£-13 1.69£-14 4.00£-12 1.00£-12
12/14/1981 4.84£-15 5.00£-12 l.25£-12 2.78£-15 8.00£-14 2.00£-14 1.84H5 2.00£-12 5,00£-13 1.53£-14 4.00£-12 1.00£-12
3/29/1982 1.04£-15 5.00£-12 1.25£-12 2.62£-15 8.00£-14 2.00£-14 1.11£-15 2.00£-12 5.00£-13 2.98£-14 4.00£-12 1.00£-12
6/30/1982 3.61£-15 5.00£-12 1.25E-12 7.61£-15 8.00£-14 2.00£-14 1.39£15 2.00£-12 5.00E-13 1.80£-15 4.00E-12 1.00£-12
9/27/1982 1.71£-14 5.00E-12 1.25E-12 9.46£-15 8.00£-14 2.00£-14 3.80£-15 2.00£-12 5.00£-13 2.35£-14 4.00E-12 1.00£.12
1/3/1983 1.90£-14 5.00£-12 1.25£-12 5.77£-15 8.00£-14 2.00£-14 9.34£-17 2.00£-12 5.00£-13 4.32£-14 4.00£-12 1.00£-12
4/4/1983 5.00£-12 1.25£-12 2.33£-15 8.00£-14 2.00£-14 5.93£-16 2.00£-12 5.00£-13 3.01£-14 4.00£-12 1.00£-12
6/30/1983 7.62£-16 5.00£-12 1.25£-12 3.25£-15 8.00£-14 2.00£-14 6.28£-15 2.00£-12 5.00£-13 2.69£-14 4.00£-12 1.00£-12
10/3/1983 4.86£-16 5.00£-12 1.25£-12 1.10£-15 8.00£-14 2.00£-14 3.63£-16 2.00£-12 5.00£-13 2.08£-14 4.00£-12 1.00£-12
1/3/1984 6.96£-15 5.00£-12 1.25£-12 9.69£-16 8.00£-14 2.00£-14 9.60£-16 2.00£-12 5.00£-13 1.83£-14 4.00£-12 1.00£-12
4/2/1984 1.64£-15 5.00H2 1.25£-12 1.34£-15 8.00£-14 2.00E-14 3.88£-15 2.00£-12 5.00£-13 4.67£-14 4.00£-12 1.00E-12
7/2/1984 1.12E-15 5.00£-12 1.25£-12 1.92£-15 8.00£-14 2.00£-14 3.31£-15 2.00E-12 5.00£-13 2.21£-14 4.00£-12 1.00£-12
10/1/1984 1.11£-15 5.00£-12 1.25£-12 3.13£-16 8.00£-14 2.00£14 4.21£-16 2.00£-12 5.00£-13 1.57£-14 4.00£-12 1.00£-12
1/2/1985 7.32£-16 5.00£-12 1.25£-12 6.71£-16 8.00£-14 2.00£-14 4.94£-16 2.00£-12 5.00E-13 2.42E-14 4.00£-12 1.00£-12
4/1/1985 2.36E-16 5.00£-12 1.25£-12 5.43£-16 8.00E-14 2.00E-14 2.71£-16 2.00£-12 5.00£-13 1.25£-14 4.00£-12 1.00E-12
7/1/1985 7.58E-16 5.00£-12 1.25E-12 4.00£-16 8.00£-14 2.00E-14 6.90£-16 2.00E-12 5.00£-13 2.15£-14 4.00E-12 1.00£-12
9/30/1985 7.47£-15 5.00E-12 1.25£-12 1.16£-15 8.00E-14 2.00£-14 2.19£-15 2.00£-12 5.00£-13 9.20E-15 4.00£-12 1.00£-12
1/2/1986 1.75£-14 5.00£-12 1.25E-12 7.24£-15 8.00£-14 2.00£14 3.83£-15 2.00£-12 5.00E-13 1,13£-16 4.00£-12 1.00£-12
4/1/1986 2.99£-14 5.00£-12 1.25£-12 7.64£-15 8.00£-14 2.00£-14 1.51£-14 2.00E-12 5.00£-13 2.22E-14 4.00£-12 1.00£-12
6/30/1986 2.23£-14 5.00E-12 1.25£-12 5.19£-15 8.00£-14 2.00E-14 1.05£-14 2.00E-12 5.00E-13 2.16E-14 4.00E-12 1.00E-12
10/27/1986 2.33E-14 5.00E-12 1.25E-12 7.78E-15 8.00£-14 2.00E-14 1.60£-14 2.00E-12 5.00£-13 2.02£-14 4.00£-12 1.00£-12
12/15/1986 3.40£-14 5.00£-12 1.25E-12 5.35£-15 8.00E-14 2.00£-14 1.47E-14 2.00E-12 5.00E-13 2.82E-14 4.00£-12 1.00E-12
3/16/1987 2.06E-14 5.00£-12 1.25£-12 4.50E-15 8.00£-14 2.00£-14 6.74£-15 2.00£-12 5.00E-13 7.29E-14 4.00E-12 1.00E-12
5/11/1987 2.50£-14 5.00£-12 1.25E-12 8.54E-15 8.00E-14 2.00£-14 8.15£-15 2.00E-12 5.00£-13 3.28£-14 4.00£-12 1.00£-12
9/9/1987 2.65E-14 5.00£-12 1.25E-12 6.62E-15 8.00E-14 2.00£-14 9.34£-15 2.00E-12 5.00E-13 2.77£-14 4.00£-12 1.00E-12
11/2/1987 1.80E-14 5.00E-12 1.25E-12 7.09£-15 8.00E-14 2.00£-14 7.20E-15 2.00E-12 5.00E-13 1.77E-14 4.00£-12 1.00E-12
2/16/1988 1.01£-14 5.00£-12 1.25E-12 2.98E-15 8.00E-14 2.00E-14 3.93£-15 2.00E-12 5.00E-13 3.36£-14 4.00E-12 1.00E-12
5/18/1988 1.78£-14 5.00£-12 1.25E-12 8.14£-15 8.00E-14 2.00E-14 7.43E-15 2.00E-12 5.00E-13 2.12E-14 4.00E-12 1.00£-12
8/15/1988 1.79£-14 5.00E-12 1.25E-12 1.49£-14 8.00E-14 2.00E-14 5.34£-15 2.00E-12 5.00E-13 2.45£-14 4.00E-12 1.00E-12
11/14/1988 4.46E-14 5.00£-12 1.25£-12 1.39E-14 8.00E-14 2.00E-14 1.17£-14 2.00£-12 5.00£-13 3.43£-14 4.00£-12 1.00£-12
2/13/1989 1.67E-14 5.00E-12 1.25£-12 5.54E-15 8.00E-14 2.00£-14 7.20E-15 2.00E-12 5.00E-13 5.02E-14 4.00E-12 1.00E-12
5/15/1989 2.03E-14 5.00£-12 1.25E-12 7.05E-15 8.00E-14 2.00E-14 9.56E-16 2.00£-12 5.00E-13 1.43£-14 4.00£-12 1.00E-12
8/14/1989 2.81£-15 5.00£-12 1.25E-12 3.78£-15 8.00£-14 2.00£-14 9.26E-15 2.00E-12 5.00£-13 1.50£-14 4.00H2 1.00£-12
11/13/1989 5.38£-14 5.00E-12 1.25E-12 8.0lE-15 8.00E-14 2.00E-14 1.81£-14 2.00£-12 5.00£-13 4.09E 14 4.00£-12 1.00E-12
2/12/1990 4.48E-14 5.00E-12 1.25E-12 1.48E-14 8.00E-14 2.00E"14 1.28E-14 2.00E-12 5.00£-13 3.88£-14 4.00£-12 1.00E-12
5/14/1990 2.18£-14 5.00£-12 1.25£-12 1.70E-14 8.00E-14 2.00E-14 1.59E-14 2.00£-12 5.00£-13 3.49E-14 4.00£-12 1.00E-12
8/13/1990 9.53£-15 5.00£-12 1.25E-12 1.70E-14 8.00£-14 2.00E-14 3.27E-15 2.00£-12 5.00E-13 1.27E-14 4.00E-12 1.00E-12
11/12/1990 1.1lE-14 5.00E-12 1.25E-12 5.27£-15 8.00£-14 2.00E-14 5.38E-15 2.00£-12 5.00E-13 1.56E-14 4.00E-12.1.00£-12
2/11/1991 6.35E-16 5.00H2 1.25E-12 3.13£-16 8.00£-14 2.00E-14 2.31£-16 2.00E-12 5.00E-13 3.89£-14 4.00E-12 1.00E-12
5/13/1991 1.22£-15 5.00E-12 1.25£-12 6.14E-15 8.00E-14 2.00£-14 4.41E-15 2.00£-12 5.00E-13 2.50E-14 4.00E-12 1.00E-12
8/12/1991 7.84E-16 5.00£-12 1.25E-12 1.43£-15 8.00E-14 2.00£-14 4.47£-16 2.00E-12 5.00E-13 1.84£-14 4.00E-12 1.00E-12
11/11/1991 5.37E-16 5.00E-12 1.2.5E-12 4.20E-16 8.00E-14 2.00E-14 1.37E-16 2.00£-12 5.00E-13 1.27£-14 4.00E-12 1.00E-12
2/10/1992 3.54E-16 5.00£-12 1.25E-12 1.18E-16 8.00E-14 2.00E-14 4.08£-17 2.00E-12 5.00£-13 3.69E-14 4.00H2 1.00E-12
5/11/1992 4.71£-16 5.00E-12 1.25E-12 9.58£-16 8.00£-14 2.00£-14 8.31£-17 2.00£-12 5.00£-13 1.43E-14 4.00£-12 1.00H2
8/10/1992 5.32E-15 5,00E-12 1.25E-12 3.36£-16 8.00E-14 2.00E-14 1.65E-16 2.00£-12 5.00£-13 1.59£-14 4.00E-12 1.00£-12
11/9/1992 3.66£-16 5.00E-12 1.25E-12 2.25E-16 8.00E-14 2.00E-14 1.08£-16 2.00£-12 5.00E-13 2.24E-14 4.00£-12 1.00£-12
2/9/1993 2.05E 16 5.00£-12 1.25E-12 9.14£-17 8.00£-14 2.00E-14 6.31£-17 2.00E-12 5.00E-13 3.41£-14 4.00£-12 1.00£-12
5/10/1993 4.80£-16 5.00E-12 1.25£-12 8.25£-16 8.00£-14 2.00E-14 1.26E-15 2.00£-12 5.00£-13 1.83E-14 4.00E-12 1.00£-12
8/10/1993 8.30E-16 5.00£-12 1.25E-12 1.90E-16 8.00£-14 2.00£-14 2.10E-16 2.00E-12 5.00E-13 1.70E-14 4.00£-12 1.00E-12
11/8/1993 2.70£-16 5.00E-12 1.25E-12 8.00E-17 8.00E-14 2.00£-14 7.00£-17 2.00£-12 5.00£-13 2.34E-14 4.00E-12 1.00E-12
2/7/1994 3.18£-16 5.00£-12 1.25E-12 1.00E-16 8.00E-14 2.00E 14 5.18£-16 2.00E-12 5.00E-13 3.64E-14 4.00E-12 1.00E-12
5/9/1994 1.80E-15 5.00E-12 1.2.5E-12 9.78£-16 8.00E-14 2.00E-14 1.10E 15 2.00£-12 5.00E-}3 8.30E-15 4.00E-12 1.00£-12
8/9/1994 2.67£-15 5.00E-12 l.25E-12 1.11£-15 8.00E-14 2.00£-14 4.95E-16 2.00E-12 5.00E-13 1.00E-16 4.00E-12 1.00£-12
11/7/1994 9.21f.l7 5.00£-12 1.25£12 1.59E-15 8.00£-14 2.00E·14 1.66E-15 2.00£-12 5.00£-13 1.00E-16 4.00E-12 1.00E-12
2/7/1995 1.5lE"15 9.00£14 2.25E-14 9.50E-16 2.00£-14 5.00E-15 9.70E-17 9.00£-13 2.25E-13 9.35E-15 6.00E-13 1.50£-13
5/9/1995 2.21E-16 9.00E-14 2.25£-14 8.56E-16 2.00E-14 5.00E-15 3.06£-15 9.00E-13 2.25£-13 4.34£-15 6.00£-13 1.50E-13
8/9/1995 1.66E-16 9.00E-14 2.25£-14 1.67E-15 2.00E·14 5.00E-15 3.90E-15 9.00E-13 2.25E-}3 5.60£-15 6.00£-13 1.50E-13
Date Effluent Concentration limit =9E-14uCi/ml BHV-5U EffluentConcentration limit=2E·14 uCi/ml BHV·5T Effluent Concentrationlimit =9E-13 uCi/ml BHV-5R EffluentConcentration limit=6E-13 uCi/ml BHV-5Pa
ALARA Goal =2.25E-14 uCi/ml ALARAGoal =5£-13 uCi/ml ALARAGoal ::2.25£-13 uCi/ml ALARAGoal =1.5E-13 uCi/ml
Pre1994MPC limit::5E-12 uCi/ml Pre 1994 MPC limit::8£-14 uCi/ml Pre 1994 MPC limit =2£-12 uCi/ml Pre 1994 MPC limit::4E-12 uCi/ml
Pre 1994ALARA GOAL =l.25£-12 uCi/ml Pre 1994ALARA GOAL::5E-13 uCi/ml Pre 1994ALARA GOAL =1£·12 uCi/ml
Cone EFC EFCA Cone EFC EFCA Cone EFC EFCA Cone fFC EFCA
11/11/1995 2.04E-14 9.00E-14 2.25E-14 6.70E-15 2.00E-14 5.00E-15 7.65£-15 9.00E-13 2.25E-13 4.47E-15 6.00E-13 1.50E-13
2/5/1996 4.50E-14 9.00E-14 2.25£-1...3.58E-14 2.00E-14 5.00E-15 2.39E-14 9.00£-13 2.25E-13 7.30E-15 6.00E-13 1.50E-13
5/6/1996 1.76E-15 9.00E-14 2.25E-14 3.57E-15 2.00E-14 5.00E-15 9.55E-16 9.00E-13 2.25E-13 7.54E-15 6.00E-13 1.50E-13
8/5/1996 2.37E-15 9.00E-14 2.25E-14 8.18E-15 2.00E-14 5.00E-15 7.46E-16 9.00E-13 2.25E-13 5.75E-15 6.00E-13 1.50E-13
11/6/1996 3.53E-15 9.00E-14 2.25E-14 5.31E-15 2.00E-14 5.00E-15 9.39E-16 9.00E-13 2.25E-13 1.21E-14 6.00E-13 1.50E-13
2/6/1997 1.84E-16 9.00E-14 2.25E-14 2.01E-16 2.00E-14 5.00E-15 1.87£16 9.00E-13 2.25E-13 6.14E-15 6.00£-13 1.50E-13
5/5/1997 5.75E-16 9.00E-14 2.25E-14 7.24E-16 2.00E-14 5.00£-15 6.07E-16 9.00E-13 2.25E-13 4.75E-15 6.00E-13 1.50E-13
8/11/1997 1.2lE-15 9.00E-14 2.25E-14 7.39E-16 2.00E-14 5.00E-15 5.05E-16 9.00E-13 2.25E-13 4.92E-15 6.00E-13 1.50E-13
1/5/1998 9.89E-16 9.00E-14 2.25E-14 1.92E-15 2.00E-14 5.00E-15 6.2lE-16 9.00E-13 2.25E-13 4.68E-15 6.00E-13 1.50E-13
4/28/1998 2.84E-15 9.00E-14 2.25E-14 2.38E-15 2.00E-14 5.00E-15 1.72E-15 9.00E-13 2.25E-13 7.35E-15 6.00E-13 1.50E-13
7/31/1998 7.49E-16 9.00E-14 2.25E-14 1.49E-15 2.00E-14 5.00E-15 8.34E-16 9.00E-13 2.25E-13 7.01E-15 6.00E-13 1.50E-13
9/28/1998 1.07E-15 9.00E-14 2.25E-14 9.20E-16 2.00E-14 5.00E-15 6.32E-16 9.00E-13 2.25E-13 3.95E-15 6.00E-13 1.50E-13
12/28/1998 8.51E-15 9.00E-14 2.25E-14 4.58E-15 2.00E-14 5.00E-15 4.58E-15 9.00E-13 2.25E-13 lA3E-14 6.00E-13 1.50E-13
3/29/1999 3.75E-15 9.00E-14 2.25E-14 2.45E-15 2.00E-14 5.00E·15 2.39E-15 9.00E-13 2.25E-13 8A6E-15 6.00E-13 1.50E-13
7/3/1999 1.53E-15 9.00E-14 2.25E-14 8.65E-16 2.00E-14 5.00E-15 6.52E-16 9.00E-13 2.25E-13 7.20E-15 6.00E-13 1.50E-13
9/27/1999 5.83E-15 9.00E-14 2.25E-14 3.52E-15 2.00E-14 5.00E-15 2.55E-15 9.00E-13 2.25f.13 8.22E-15 6.00E-13 1.50E-13
12/28/1999 9A8E-15 9.00E-14 2.25E-14 6.20E-15 2.00E-14 5.00E-15 3.96E-15 9.00E-13 2.25E-13 7.56E-15 6.00E-13 1.50E-13
3/27/2000 2.06E-15 9.00E-14 2.25E-14 1.27E-15 2.00E-14 5.00E-15 1.09E-15 9.00E-13 2.25E-13 7.72E-15 6.00E-13 1.50E-13
6/26/2.000 1.50E-15 9.00E-14 2.25E-14 1.24E-15 2.00E-14 5.00E-15 1.01E 15 9.00E-13 2.25E-13 4.36E-15 6.00E-13 1.50E-13
9/26/2000 1.04E-15 9.00E-14 2.25E-14 5.45E-16 2.00E-14 5.00E-15 6.01E-16 9.00E-13 2.25E-13 7.67E-15 6.00E-13 1.50E-13
12/26/2000 1.48£-15 9.00E-14 2.25£-14 7.56E-16 2.00E-14 5.00E-15 6.84E-16 9.00E-13 2.25E-13 7.00E-15 6.00E-13 1.50E-13
3/26/2001 4.27E-16 9.00E-14 2.25E-14 2.19E-16 2.00E-14 5.00E 15 1.89E-16 9.00E-13 2.25E-13 6.13E-15 6.00E-13 1.50H3
7/2/2001 4.52E-16 9.00E-14 2.25E-14 4.02E-16 2.00E-14 5.00E-l5 1.00E-16 9.00E-13 2.25E-13 7.48E-15 6.00E-13 1.50E-13
9/24/2001 4.65E-16 9.00E-14 2.25E-14 2.06E-16 2.00E-14 5.00E-15 2.02E-16 9.00E-13 2.25E-13 6.98E-15 6.00E-13 1.50E-13
12/31/2001 7.40E-16 9.00E-14 2.25E-14 3.5lE-16 2.00E-14 5.00E-15 3.64E-16 9.00E-13 2.25E-13 4.72E-15 6.00E-13 1.50E-13
4/1/2002 1.26E-15 9.00E-14 2.25E-14 7.53E-16 2.00E-14 5.00E-15 7.19E-16 9.00E-13 2.25E-13 9.65E-15 6.00E-13 1.50E-13
7/1/2002 1.02E-15 9.00E-14 2.25E-14 1.03E-15 2.00E-14 5.00E-15 3.39E-16 9.00E-13 2.25E-13 7.20E-15 6.00E-13 1.50£-13
9/30/2002 5.82E-16 9.00E-14 2.25E-14 9.28E-16 2.00E-14 5.00E-15 3.14E-16 9.00E-13 2.25E-13 4.48E-15 6.00E-13 1.50E-13
12/30/2002 1.00£-16 9.00E-14 2.25E-14 7.67E-l6 2.00E-14 5.00E-15 3.48E-16 9.00E-13 2.25E-13 9.56E-15 6.00£-13 1.50E-13
3/31/2003 1.13E-15 9.00E-14 2.25E-14 7.41E-16 2.00E-14 5.00E-15 4.41E-16 9.00£-13 2.25E-13 6.68E-15 6.00E-13 1.50E-13
6/30/2003 4.35E-16 9.00E-14 2.25E-14 5.08E-16 2.00E-14 5.00E-15 2.51E-16 9.00E-13 2.25E-13 1.34E-15 6.00E-13 1.50E-13
9/29/2003 1.5lE-16 9.00E-14 2.25E-14 1.02E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25£-13 7.28E-15 6.00E-13 1.50E-13
12/29/2003 1.52E-16 9.00E-14 2.25E-14 1.54E-16 2.00E-14 5.00£-15 1.5lE-16 9.00E-13 2.25E-13 7.02E-15 6.00E-13 1.50E-13
3/29/2004 1.00E-16 9.00E-14 2.25E-14 1.12E-16 2.00E-14 5.00E-15 1.00E 16 9.00E-13 2.25E-13 8.82E-15 6.00E-13 1.50E-13
6/27/2004 1.18E-16 9.00E-14 2.25E-14 3.11E-16 2.00E-14 5.00E-15 1.25E-16 9.00E-13 2.25E-13 2.47E-15 6.00E-13 1.50E-13
9/27/2004 1.16E-16 9.00E-14 2.25E-14 1.72E-16 2.00E-14 5.00E-15 1.18E-16 9.00E-13 2.25E-13 1.10E-14 6.00E-13 1.50E-13
12/27/2004 1.14E-16 9.00£-14 2.25E-14 1.06E-16 2.00E-l4 5.00E-15 1.00E-16 9.00E-13 2.25E-13 1.59E-14 6.00E-13 1.50E-13
3/28/2005 1.00E-16 9.00E-14 2.25E-14 2.04E-16 2.00E-14 5.00E-15 1.83E-16 9.00E-13 2.25E-13 8.57E-15 6.00E-13 1.50E-13
6/29/2005 1.83E-16 9.00E-14 2.25E-14 3.8lE-16 2.00E-14 5.00E-15 3.09E-16 9.00E-13 2.25E-13 1.06E-14 6.00E-13 1.50E-l3
9/26/2005 2.87E-16 9.00E-14 2.25E-14 8.2lE-16 2.00E-14 5.00E-15 3.71E-14 9.00E-13 2.25E-13 6.28E 14 6.00E-13 1.50E-13
1/3/2006 8.74E-16 9.00E-14 2.25E-14 3.79E-16 2.00E-14 5.00E-15 1.3lE-16 9.00E-13 2.25E-13 4.32E-14 6.00E-13 1.50E-13
4/3/2006 5.22E-16 9.00E-14 2.25E-14 6.66E-16 2.00E-14 5.00E-15 1.11E-16 9.00E-13 2.25E-13 9.34E-15 6.00E-13 1.50E-13
7/3/2006 3.08E-16 9.00E-14 2.25E-14 1.10E-16 2.00E-14 5.00E-15 1.00E-16 9.00£-13 2.25E-13 1.25E-14 6.00E-13 1.50E-13
10/2/2006 9.14E-16 9.00E-14 2.25E-14 4.95E-16 2.00E-14 5.00E-15 1.86E-16 9.00E-13 2.25E-13 1.67E-14 6.00£-13 1.50E-13
1/1/2007 9.49E-16 9.00E-14 2.25E-14 6.8lE-16 2.00E-14 5.00E-15 2.02E-16 9.00E-13 2.25E-13 1.31E-14 6.00E-13 1.50E-13
4/2/2007 1.08E-15 9.00E-14 2.25E-14 8.22E-16 2.00E-14 5.00E-15 2.26E-16 9.00E-13 2.25E-13 1.64E-14 6.00E-13 1.50E-13
7/2/2007 1.54E-15 9.00E-14 2.25E-14 8.16E-16 2.00E-14 5.00E-15 4.76E-16 9.00E-13 2.25E-13 2.12E-14 6.00E-13 1.50E-13
9/30/2007 4.90E-16 9.00E-14 2.25E-14 2.37E-16 2.00E-14 5.00£-15 1.00E-16 9.00£-13 2.25E-13 6.65E-15 6.00E-13 1.50E-13
12/31/2007 1.46E-15 9.00E-14 2.25E-14 5.67£-16 2.00E-14 5.00£-15 1.00E-16 9.00E-13 2.25E-13 1.02E-14 6.00E-13 1.50E-13
3/31/2008 3.16E-16 9.00E-14 2.25E-14 6.17E-16 2.00E-14 5.00E-15 3.71E-16 9.00E-13 2.25E-13 4.82E-15 6.00E-13 1.50E-13
6/30/2008 3.13E-15 9.00E-14 2.25E-14 1.55E-15 2.00E-14 5.00E-15 9.27E-16 9.00E-13 2.25E-13 7.40E-15 6.00E-13 1.50E-13
9/30/2008 9.00E-14 2.25E-14 2.00E-14 5.00E-15 9.00E-13 2.25E-13 6.00E-13 1.50E-13
12/31/2008 9.00E-14 2.25E-14 2.00E-14 5.00E-15 9.00£-13 2.25E-13 6.00E-13 1.50E-13
3/15/2009 4.13E-15 9.00E-14 2.25E-14 1.39E-15 2.00E-14 5.00E-15 1.41E-15 9.00E-13 2.25£-13 4.66E-15 6.00E-13 1.50E-13
6/15/2009 2.3lE-16 9.00£-14 2.25E-14 7.79E-16 2.00E-14 5.00E-15 6.37E-16 9.00E-13 2.25E-13 4.18£-15 6.00E-13 1.50£-13
9/15/2009 3.10E-15 9.00E-14 2.25E-14 9.20E-16 2.00E-14 5.00E-15 6.36E-16 9.00E-13 2.25E-13 1.2lE-14 6.00E-13 1.50E-13
12/15/2009 5.77E-15 9.00E-14 2.25E-14 3.13E-16 2.00E-14 5.00E-15 1.92E-16 9.00E-13 2.25E-13 2.48E-15 6.00E-13 1.50£-13
Date Effluent Concentration Limit =9E-14 uCi/ml BHV·SU EffluentConcentration Limit=2E·14uCijml BHV-ST Effluent Concentration Limit =9E-13 uCi/ml BHV-5R Effluent Concentration Limit =6E-BuCi/ml BHV-5PB
ALARA Goal=2.25E·111 uCi/ml ALARA Goal =5E-13 uCijml ALARAGoal =2.25E-B uCi/ml ALARA Goal =1.5E·13uCi/ml
Pre1994 MPC Lim'lt:::5E-12 uCi/ml Pre 1994 MPC Lim'lt:::BE-ill uCi/ml Pre 1994MPC Limit =2E·l2 uCi/ml Pre1994MPC Limit:::4E-12 uCi/ml
Pre 1994 ALARA GOAL =1.25E-12 uCi/ml Pre1994ALARA GOAL =5E-13 uCijml Pre1994ALARA GOAL =lE-l2 uCi/ml
Cone EFC EFCA Cone EFC EFCA Cone EFC EFCA Cone EFC EFCA
3/31/2010 4.78E-1S 9.00E-14 2.25E-14 3.73E-16 2.00E-14 5.00E-1S 4.l9E·16 9.00E-13 2.2SE-13 1.30E-14 6.00H3 1.S0E-13
6/30/2010 4.35E-15 9.00E-14 2.2SE-14 7.84H6 2.00E-14 S.OOE-1S 1.OSE-IS 9.00E-13 2.2SE·13 4.40E-15 6.00f.13 l.50E-13
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ALARA Goal =2.25E-14 uCi/ml
Pre 1994 MPC Limit =5E-12uCi/ml
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BHV-5 Uranium-Natural Concentrations (uCi/ml)
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Effluent Concentration Limit =2E-14 uCi/ml
ALARA Goal =5E-13 uCi/ml
Pre 1994 MPC Limit =8E-14uCilml
BHV-5 Thorium-230 Concentrations (uCi/ml)
1.00E-12
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Effluent Concentration Limit =9E-13 uCl/ml
ALARA Goal =2.25E-13 uCi/ml
Pre 1994 MPC Limit =2E-12uCl/ml
Pre 1994 ALARA Goal =5E-13 uCi/ml
BHV-5 Radium-226 Concentrations (uCi/ml)
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co9c.0>en
....9c.0>en
co '"~~0>0>en en
1.00E-11
Effluent Concentration Limit=6E-13 uCi/ml
ALARA Goal =1.5E-13 uCi/ml
Pre 1994 MPC Limit =4E-12uCi/ml
Pre 1994ALARA Goal =1E-12 uCi/ml
BHV-5 Lead-210 Concentrations (uCi/ml)
1.00E-12
1.00E-13
a;-m()
en1.00E-14
Ol
d
1.00E-15
1.00E-16
'"~.T '(/VI '~,,\.
~•'¥¥•..V~""~J..IN•~
1.00E-17
~co6.0)en
C'\I M .....l()co CXJ co co6.6.6.6-Q,)Q)Q)Q)en en en en
~c-O)en
.....
"i'c-O)en
co
"i'c-
O)en
~c-
O)en
aq>c-
O)en
~q>c-
O)en
9c-
O)en
'"q>c-
O)en
g,
•c-
O)en
It)Ol•c-
O)en
toOl•c-
O)en
.....Ol6.
0)en
coOl6.
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OlOl6.
0)en
aa6.0)en
~a6.0)en
Na6.0)en
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..a6.0)en
It)
9c-O)en
to9c-O)en
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co Ola a..c- c-O)0)en en

TAB 6
BHV-6 AIR SAMPLING GRAPHS AND DATA TABLE

Date Effluent Concentration limit =9E-14uCi/ml BHV-6U EffluentConcentration limit=2E-14 uCi/ml BHV-6T EffluentConcentration Limit =9E-13 uCi/ml BHV-6R Effluent Concentrationlimit =6E-13 uCi/ml BHV-6PB
ALARA Goal =2.25E-14 uCi/ml ALARA Goal =5E-13 uCi/mJ AlARAGoal =2.25E-13 uCi/ml ALARAGoal =1.5E-13 uCi/ml
Pre 1994MPC limit=5E-12 uCi/ml Pre1994 MPC limit =8E-14 uCi/mJ Pre 1994 MPC Limit =2E-12 uCi/ml Pre 1994MPC limit=4E-12 uCi/ml
Pre 1994ALARAGOAL =1.25E-12 uCi/ml Pre 1994 ALARA GOAL =5E-13 uCi/ml Pre 1994ALARAGOAL =1E-12uCi/ml
Cone EFC EFCA Cone EFC EFCA Cone EFC EFCA Cone EFC EFCA
9/28/1981 5.00£-12 1.25£-12 8.00£-14 2_00£-14 2.00£-12 5.00£-13 4.00£-12 1.00£-12
12/14/1981 5.00£-12 l.25E-12 8.00E-14 2.00£-14 2.00£-12 5.00£-13 4.00£-12 1.00£-12
3/29/1982 5.00£-12 1.25E-12 8.00£-14 2.00£-14 2.00£-12 5.00£-13 4.00£-12 1.00£-12
6/30/1982 5.00£-12 1.25£-12 8.00£-14 2.00£-14 2.00£-12 5.00£-13 4.00£-12 1.00£-12
9/27/1982 5.00£-12 1.25E-12 8.00E-14 2.00£-14 2.00£-12 5.00E-13 4.00£-12 1.00£-12
1/3/1983 5.00£-12 1.25£-12 8.00E-14 2.00£-14 2.00£-12 5.00E-13 4.00£-12 1.00£-12
4/4/1983 5.00E-12 1.25£-12 8.00£-14 2.00£-14 2.00£-12 5.00£-13 4.00£-12 1.00£-12
6/30/1983 5.00£-12 1.25£-12 8.00£-14 2.00£-14 2.00£-12 5.00E-13 4.00£-12 1.00£-12
10/3/1983 5.00E-12 1.25£-12 8.00£-14 2.00E-14 2.00E-12 5_00£-13 4.00£-12 1.00E-12
1/3/1984 5.00£-12 1.25E-12 8.00£-14 2.00E-14 2.00E-12 5.00E-13 4.00E-12 1.00£-12
4/2/1984 5.00E-12 1.25E-12 8.00E-14 2.00£-14 2.00E-12 5.00£-13 4.00£-12 1.00E-12
7/2/1984 5.00E-12 1.25E-12 8.00E-14 2.00E-14 2.00E-12 5.00E-13 4.00E-12 1.00E-12
10/1/1984 5.00£-12 1.25E-12 8.00E-14 2.00E-14 2_00£-12 5.00£-13 4.00E-12 1.00E-12
1/2/1985 5.00£·12 1.25£-12 8.00E-14 2.00£-14 2.00£-12 5.00E-13 4.00£-12 1.00E-12
4/1/1985 5.00£-12 1.25E-12 8.00£-14 2.00£-14 2.00£-12 5.00E-13 4.00£-12 1.00£-12
7/1/1985 5.00E-12 1.25E-12 8.00£-14 2.00£-14 2.00£-12 5.00E-13 4.00£-12 1.00£-12
9/30/1985 5.00£-12 1.25£-12 8.00£-14 2.00£-14 2.00E-12 5.00E-13 4.00£-12 1.00£-12
1/2/1986 5.00£-12 1.25£-12 8.00£-14 2.00£-14 2.00E-12 5.00£-13 4.00£-12 1.00£-12
4/1/1986 5.00E-12 1.25£-12 8.00£-14 2.00£-14 2.00£-12 5.00E-13 4.00£-12 1.00£-12
6/30/1986 5.00£-12 1.25£-12 8.00E-14 2.00£-14 2.00E-12 5.00£-13 4.00£-12 1.00E-12
10/27/1986 5.00E-12 1.25E-12 8.00£-14 2.00E-14 2.00E-12 5.00£-13 4.00E-12 1.00£-12
12/15/1986 5.00E-12 1.25£-12 8.00E-14 2.00£-14 2.00£-12 5.00£-13 4.00£-12 1.00£-12
3/16/1987 5.00£-12 1.25E-12 8.00£-14 2.00E-14 2.00£-12 5.00E-13 4.00£-12 1.00£-12
5/11/1987 5.00£-12 1.25£-12 8.00E-14 2.00£-14 2.00E-12 5.00£-13 4.00£-12 1.00£-12
9/9/1987 5.00£-12 1.25£-12 8.00£-14 2.00£-14 2.00E-12 5.00£-13 4.00E-12 1.00£-12
11/2/1987 5.00E-12 1.25E-12 8.00£-14 2.00E-14 2.00£-12 5.00£-13 4.00£-12 1_00£-12
2/16/1988 5.00£-12 1.25£-12 8.00£-14 2.00E-14 2.00E-12 5.00£-13 4.00£-12 1.00£-12
5/18/1988 5.00£-12 1.25£-12 8.00£-14 2.00£-14 2.00£-12 5.00£-13 4.00£-12 1.00£-12
8/15/1988 5.00£-12 1_25£-12 8.00E-14 2.00£-14 2.00£12 5.00£-13 4.00£-12 1.00£-12
11/14/1988 5.00£-12 1.25£-12 8.00£-14 2.00E-14 2.00E-12 5.00£-13 4.00£-12 1.00£-12
2/13/1989 5.00£-12 1.25£-12 8.00£-14 2.00£-14 2.00E-12 5.00£-13 4.00£-12 1.00£-12
5/15/1989 5.00£-12 1.25£-12 8.00£-14 2.00E-14 2.00£-12 5.00£-13 4.00£-12 1.00£-12
8/14/1989 5.00£-12 1.25£-12 8.00£-14 2.00E-14 2.00£-12 5.00£-13 4.00£-12 1.00£-12
11/13/1989 5.00£-12 1.25£-12 8.00E-14 2.00£-14 2.00£-12 5.00£-13 4.00£-12 1.00£-12
2/12/1990 5.00£-12 1.25£-12 8.00E-14 2.00£-14 2.00£-12 5.00£-13 4.00£-12 1.00£-12
5/14/1990 5.00£-12 1.25£-12 8.00£-14 2.00£-14 2.00£-12 5.00£-13 4.00E-12 1.00£-12
8/13/1990 5.00£-12 1.25£-12 8.00£-14 2.00£-14 2.00E-12 5.00£-13 4.00E-12 1.00£-12
11/12/1990 5.00E-12 l.25£-12 8.00E-14 2.00£-14 2.00£-12 5.00E-13 4.00£-12 1.00E-12
2/11/1991 5.00£-12 l.25£-12 8.00£-14 2.00£-14 2.00£-12 5.00£-13 4.00E-12 1.00£-12
5/13/1991 5.00£-12 1.25£-12 8.00£-14 2.00£-14 2.00£-12 5.00£-13 4.00£-12 1.00£-12
8/12/1991 5.00£-12 1.25£·12 8.00E-14 2.00£-14 2.00E-12 5.00£-13 4.00£-12 1.00£-12
11/11/1991 5.00E-12 1.25£-12 8.00E-14 2.00£-14 2.00£-12 5.00£-13 4.00£-12 1.00£-12
2/10/1992 5.00£-12 1.25£-12 8.00£-14 2.00E-14 2.00E-12 5.00£-13 4.00£-12 1.00£-12
5/11/1992 5.00£·12 1.25£-12 8.00£-14 2.00E-14 2.00£-12 5.00E-13 4.00E-12 1.00£-12
8/10/1992 5.00E-12 1.25E-12 8.00£-14 2.00E-14 2.00E-12 5.00£-13 4.00E-12 1.00£-12
11/9/1992 5.00£-12 1.25E-12 8.00E-14 2.00E-14 2.00£-12 5.00£-13 4.00E-12 1.00£-12
2/9/1993 5.00£-12 1.25£-12 8.00E-14 2.00£-14 2.00£-12 5.00£-13 4.00£-12 1.00E-12
5/10/1993 5.00E-12 1.25E-12 8.00£-14 2.00£-14 2.00E-12 5.00£-13 4.00H2 1.00£-12
8/10/1993 5.00£-12 1.25£-12 8.00E-14 2.00£-14 2.00£-12 5.00E-13 4.00£-12 1.00£-12
11/8/1993 5.00£-12 1.25E-12 8.00E-14 2.00E-14 2.00E-12 5.00E-13 4.00£-12 1.00E-12
2/7/1994 5.00£-12 1.25£-12 8.00£-14 2.00£-14 2.00E-12 5.00E-13 4.00E-12 1.00E-12
5/9/1994 5.00E-12 1.25E-12 8.00E-14 2.00E-14 2.00£.12 5.00E-13 4.00£-12 1.00E-12
8/9/1994 5.00E-12 1.25£-12 8.00E-14 2.00£-14 2.00£-12 5.00£-13 4.00£-12 1.00£-12
11/7/1994 5.00£-12 1.25E-12 8.00£-14 2.00E-14 2.00£-12 5.00E-13 4.00£-12 1.00£-12
2/7/1995 9.00E-14 2.25£-14 2.00£-14 5.00E-15 9.00E-13 2.25£-13 6.00£-13 1.50£-13
5/9/1995 9.00E-14 2.25£-14 2.00E-14 5.00E-15 9.00£-13 2.25£-13 6.00£-13 1.50£-13
8/9/1995 9.00E-14 2.25£-14 2.00E-14 5.00£-15 9.00E-13 2.25£-13 6.00E-13 1.50£-13
11/11/1995 9.00E-14 2.25£-14 2.00E-14 5.00£-15 9.00£-13 2.25E·13 6.00E-13 1.50£-13
2/5/1996 9.00E-14 2.25E-14 2.00E-14 5.00E-15 9.00£-13 2.25E-13 6.00E-13 1.50E-13
5/6/1996 9.00E-14 2.25E-14 2.00E-14 5.00£-15 9.00E-13 2.25E-13 6.00E-13 1.50E-13
8/5/1996 9.00E-14 2.25E-14 2.00E-14 5.00E-15 9.00E-13 2.25E-13 6.00£.13 1.50E-13
11/5/1995 9.00E-14 2.25E-14 2.00E-14 5.00E-15 9.00E-13 2.25£-13 5.00E-13 1.50E-13
2/5/1997 9.00E-14 2.25E-14 2.00E-14 5.00E-15 9.00£-13 2.25£-13 5.00E-13 1.50£-13
5/5/1997 9.00E-14 2.25E-14 2.00E-14 5.00E-15 9.00E-13 2.25E-13 5.00E-13 1.50E-13
8/11/1997 9.00E-14 2,25E-14 2.00E-14 5.00E-15 9.00E-13 2.25E-13 6.00E-13 1.50E-13
1/5/1998 9.00E-14 2.25E-14 2.00E-14 5.00E-15 9.00£-13 2.25E-13 5.00E-13 1.50E-13
4/28/1998 9.00E-14 2.25E-14 2.00E-14 5.00E-15 9.00E-13 2.25E-13 5.00E-13 1.50E-13
7/31/1998 9.00E-14 2.25E-14 2.00E-14 5.00E-15 9.00E-13 2.25E-13 6.00E-13 1.50E-13
9/28/1998 9.00E-14 2.25E-14 2.00E-14 5.00E-15 9.00E-13 2.25E-13 6.00E-13 1.50E-13
12/28/1998 9.00E-14 2.25E-14 2.00E-14 5.00E-15 9.00E-13 2.25E-13 6.00E-13 1.50E-13
3/29/1999 9.00E-14 2.25E-14 2.00E-14 5.00E-15 9.00E-13 2.25E-13 6.00E-13 1.50E-13
7/3/1999 9.00E-14 2.25E-14 2.00E-14 5.00E-15 9.00E-13 2.25E-13 6.00E-13 1.50E-13
9/27/1999 3.03E-15 9.00E-14 2.25E-14 1.37E-15 2.00E-14 5.00E-15 8.72E-16 9.00E-13 2.25E-13 7.55E-15 5.00E-13 1.50E-13
12/28/1999 5.01£-15 9.00E-14 2.25E-14 2.89E-15 2.00E-14 5,00E-15 1.31E-15 9.00E-13 2.25£-13 8.10E-15 6.00E-13 1.50E-13
3/30/2000 7.45E-16 9.00E-14 2.25E-14 5.25E-16 2.00E-14 5.00E-15 3.00E-16 9.00E-13 2.25E-13 7.83E-15 6.00E-13 1.50E-13
5/2.5/2000 5.40E-16 9.00E-14 2.25E-14 3.53E-15 2.00E-14 5.00E-15 6.11E-16 9.00E-13 2.25E-13 4.83E-15 6.00E-13 1.50E-13
9/25/2000 3,75E-15 9.00E-14 2,25E-14 2.23E-16 2.00E-14 5.00E-15 1.91E-15 9.00E-13 2.25E-13 6.41£-15 6.00E-13 1.50E-13
12/26/2000 5.21E-16 9.00E-14 2.25E-14 3.39E-16 2.00E-14 5.00E-15 3.28E-17 9.00E-13 2.25E-13 8.57E-15 6.00E-13 1.50E-13
3/26/2.001 1.42E-16 9.00E-14 2.25E-14 1.00£.16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 6.15E-15 5.00E-13 1.50E-13
7/2/2001 1.81E-16 9.00E-14 2.25E-14 1.66E-15 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 6.95E-15 6.00E-13 1.50E-13
9/24/2001 3.08E-15 9.00E-14 2.25E-14 1.01E-16 2.00E-14 5.00E-15 1.77E-16 9.00E-13 2.25E-13 8.59E-15 6.00E-13 1.50E-13
12/31/2001 3.31E-15 9.00E-14 2.25E-14 1.25E-16 2.00E-14 5.00E-15 1.09E-16 9.00E-13 2.25E-13 3.14E-15 5.00E-13 1.50H3
4/1/2002 4.77E-15 9.00E-14 2.25E-14 2.94E-16 2.00E-14 5.00E-15 1.96E-15 9.00E-13 2.25E-13 8.61E-15 5.00E-13 1.50E-13
7/1/2002 3.68E-15 9.00E-14 2.25E-14 4.41E-15 2.00E-14 5.00E-15 1.75E·15 9.00E-13 2.25E-13 8.20E-15 5.00E-13 1.50E-13
9/30/2002 3.67E-15 9.00E-14 2.25E-14 5.60E-15 2.00E-14 5.00E-15 1.80E-16 9.00E-13 2.25E-13 5.55E-15 5.00E-13 1.50E-13
12/30/2002 1.00£-16 9.00E-14 2.25E-14 3.43E-15 2.00E-14 5.00E-15 1.67E-16 9.00E-13 2.25E-13 1.35E-14 6.00E-13 1.50E-13
3/31/2003 1.98E-15 9,00E-14 2.25E-14 1.58E-16 2.00E-14 5.00E-15 1.00E-15 9.00E-13 2.25E-13 7.77E-15 5.00E-13 1.50£-13
6/30/2003 1.18E-15 9.00E-14 2.25E-14 1.15E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 5.92E-15 6.00E-13 1.50E-13
9/29/2003 1.00E-16 9.00£.14 2.25E-14 1.00E-16 2.00E-14 5.00£-15 1.00E-16 9.00E-13 2.25E-13 8.30E-15 6.00£-13 1.50E-13
12/29/2003 1.00E-15 9.00E-14 2.25E-14 1.36E-15 2.00E-14 5.00£-15 1.00E-16 9.00E-13 2.25E-13 6.66E-15 5.00E-13 1.50E-13
3/29/2004 1.00E-15 9.00£-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-15 9.00£-13 2.25£-13 8.17E-15 6.00E-13 1.50E-13
5/27/2004 1.00E-16 9.00E-14 2.25E-14 1.00£.15 2.00E-14 5.00E-15 1.00E-15 9.00E-13 2.25E-13 3.55E-15 6.00E-13 1.50E-13
9/27/2004 1.00E-16 9.00E-14 2.25E-14 1.38E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 1.22E-14 5.00E-13 1.50E-13
12/27/2004 1.05E-16 9.00E-14 2.25E-14 1.72E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 1.52E-14 6.00E-13 1.50E-13
3/28/2005 1.00E-16 9.00E-14 2.25E-14 1.00E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 9.34E-15 6.00E-13 1.50E-13
6/29/2005 1.28E-16 9.00E-14 2.25E-14 1.0IE-15 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 9.85E-15 6.00E-13 1.50£-13
9/25/2005 1.98E-16 9.00E-14 2.25E-14 5.98E-15 2.00E-14 5.00E-15 3.55E-15 9.00E-13 2.25E-13 1.71E-14 6.00E-13 1.50E-13
1/3/2005 7.57£.16 9.00E-14 2.25E-14 2.88E-15 2.00E-14 5.00E-15 3.50E-15 9.00E-13 2.25E-13 4.85E-14 6.00E-13 1.50E-13
4/3/2006 2.92E-16 9.00E-14 2.25E-14 2.00E+16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 1.11E-14 6.00E·13 1.50E-13
7/3/2005 3.25E-15 9.00E-14 2.25E-14 2.36E 16 2.00E-14 5.00E-15 1.08E-16 9.00E-13 2.25E-13 l.lOE-14 5.00E-13 1.50E-13
10/2/2005 5.03E-16 9.00E-14 2.25E-14 1.49E-15 2.00E-14 5.00E-15 1.19E-16 9.00E-13 2.25E-13 2.13E-15 5.00E-13 1.50E-13
1/1/2007 8.31E-16 9.00E-14 2.25E-14 2.49E-16 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 1.70E-14 6.00E-13 1.50E-13
4/2/2007 5.35E-16 9.00E-14 2.25E-14 3.15E-15 2.00E-14 5.00E-15 1.00E-16 9.00E-13 2.25E-13 1.43E-14 5.00E-13 1.50E-13
7/2/2007 1.08E-15 9.00£-14 2.25E-14 2.18E-16 2.00E·14 5.00E-15 1.54£-15 9.00£-13 2.25E-13 2.04E-14 5.00E-13 1.50E-13
9/30/2007 3.92E-15 9.00E-14 2.25E-14 1.02E-16 2.00E-14 5.o0E-15 1.00E-16 9.00E-13 2.25E-13 6.38E-15 5.00E-13 1.50E-13
12/31/2007 2.92E-15 9.00E-14 2.25E-14 1.55E-15 2.00E-14 5.00E-15 3.16E-16 9.00E-13 2.25E-13 9.19E-15 6.00E-13 1.50E-13
3/31/2008 4.34E-15 9.00E-14 2.25E-14 3.51E-16 2.00E-14 5.00E-15 1.00E-15 9.00E-13 2.25E-13 5.99E-15 6.00E-13 1.50E-13
6/3102008 1.88E-15 9.00E-14 2.25E-14 9.00E-15 2.00E-14 5.00E-15 4.04E-15 9.00E-13 2.25£-13 7.41E-15 6.00E-13 1.50E-13
9/30/2008 9.00E-14 2.25E-14 2.00£-14 5.00E-15 9.00E-13 2.25E-13 6.00E-13 1.50£-13
12/31/2008 9.00E-14 2.25E-14 2.00E-14 5.00E-15 9.00E-13 2.25E-13 6.00E-13 1.50E-13
3/15/2009 2.77E-15 9.00E-14 2.25E-14 1.01E-15 2.00E-14 5.00E-15 7.82E-16 9.00£-13 2.25£-13 6.45E-15 5.00E-13 1.50E-13
6/15/2009 1.4IE·16 9.00E-14 2.25E-14 2.67E-15 2.00E-14 5.00E-15 lo8IE-15 9.00E-13 2.25E-13 5.76E-15 5.00E-13 1.50E-13
9/15/2009 4.87E-15 9.00E-14 2.25E-14 4.32E-16 2.00E-14 5.00E-15 2.23E-15 9.00£-13 2.25E-13 8.98E-15 5.00E-13 1.50E-13
12/15/2009 9.24E-15 9.00E-14 2.25E-14 2.26E-16 2.00E-14 5.00£-15 1.15E-16 9.00E-13 2.25E-13 5.44E-15 6.00E-13 1.50E-13
3/31/2010 9.63E-15 9.00E-14 2.25E-14 1.82E 16 2.00E-14 5.00E-15 2.06E-15 9.00£-13 2.2510-13 137E-14 6.00E-13 1.50E-13
5/30/2010 3.62E-15 9.00E-14 2.25E-14 3.94E-16 2.00E-14 5.00E-15 4.89E-16 9.00E-13 2.25E-13 4.30E-15 6.00E-13 1.50E-13
III
Co;:
~-C
Ql(,J
CoU
Ql
'0
(,J
:::lc
.2
'0<IIc:::
(Q:>:I:III
N
~,
W
~
..,~--.
I
~~~-.....,
...J .iI;:;.~
~~..;
..::-'~
~......
...
~,
W
co
~,
W
gOOlIO£/6
SOOll9l16
olOOlIO£/~,uill--J
+666~/W%
N~E
.2u~
966~/S/g +
oM~
E£66~/O"9EoJ::
I-
+
066~/£"g~::>10Z
E::>.1"
Lg6~/6/6 ~
+
~g6~/glI6
1.00E-11
Effluent Concentration Limit=9E-14 uCi/ml
ALARA Goal =2.25E-14 uCi/ml
Pre 1994 MPC Limit =5E-12uCl/ml
Pre 1994 ALARA Goal =1.25E-12 uCi/ml
BHV-6 Uranium-Natural Concentrations (uCi/ml)
1.00E-12
1.00E-13
.,
~CIl1.00E-14
Cl
d.
1.00E-15
1.00E-16
1.00E-17
•
--
(
!I'If\.-'
,,
~~....0 M <0 Ol N It)cococoOlOlOlOl000
Ol Ol Ol Ol Ol Ol Ol 0 0 0
~~~~~~~N ia ~ii3 -0;M 25 - - -~It)....0 0N-0;~~-N M N ~0;0 -ii3 co 0;--~co Ol Ol
1.00E-11
Effluent Concentration Limit =2E-14 uCi/ml
ALARA Goal =5E-13 uCi/ml
Pre 1994 MPC limit =8E-14uCi/ml
BHV-6 Thorium-230 Concentrations (uCi/ml)
1.00E-12
1.00E-13
Q;'
~cn1.00E-14
8'2.
1.00E-15
1.00E-16
~•
'>l T \,.*>......,
IN \AA ¥\•
1.00E-17
~;;l;,...acoco0)
0)0)0)0)
~~~~--~Mco~N 0 ~a;~OS
'"0>0)
~o
~OS
CD0)
0)
~~
0)
0)
0)
~;:::
~
aa~a;
aa~~
aa~~
1.00E-11
Effluent Concentration Limit =9E-13 uCi/ml
ALARA Goal =2.25E-13 uCi/ml
Pre 1994 MPC Limit =2E-12uCi/ml
Pre 1994 ALARA Goal =5E-13 uCi/ml
BHV-6 Radium-226 Concentrations (uCi/ml)
1.00E-12
1.00E-13
Q)
1iiCJl1.00E-14
OJo<:!.
1.00E-15
1.00E-16
1.00E-17
\
~
n I.
N\l.-...N ·V
" ", ,,"" "
~ci'i ....0 (")CD '"N '"IX)
IX)IX)'"'"'"'"0 0 0'"'"'"'"'"'"'"0 0 0
~>::~~~~~~~25co~en M 0 i:O ;:::0~--~~co N ~a;(")0 '"co co en en'"~
1.00E-11
Effluent Concentration Limit =6E-13 uCi/ml
ALARA Goal =1.5E-13 uCi/ml
Pre 1994 MPC Limit =4E-12uCi/ml
Pre 1994 ALARA Goal =1E-12 uCi/ml
BHV-6 Lead-210 Concentrations (uCilml)
1.00E-12
1.00E-13
Q)
~Ul1.00E-14
Clo-=!.
1.00E-15
1.00E-16
1.00E-17
~/\!..r-\t
.Il.
~;;lj ,...0 '"<0 en N '"cococoenenenen000enenenenenenen000
~~~~~~~~~~--S2!M ---co ~0 '",...0 0
N <5 ~~-N '"al '"-en <0 -co --a;en ~co en en

ATTACHMENT C

ENERGYLABORATORIES,INC.~2393 SailCreek Highway (82601)•P.D.Box 3258 •Casper,WY82602TOll.Free 888.235.0515 •3J 5.0515 •Fax [phone] •casper@energyla".,•www.energylab.com
ANALYTICAL SUMMARY REPORT
May 09.2010
Denison Mines USA Corp
6425 S Hwy 191
Blanding,UT 84511
Workorder No.:C10040255
Project Name:BHV Air Samples 1st Quarter 2010
Energy Laboratories,Inc.received the following 6 samples for Denison Mines USA Corp on 41712010 for analysis.----
Sample 10 Client Sample ID Collect Date Receive Date Matrix Test
C10040255-001 BHV-1 04/05/1000:00 04/07/10 Filter Composite oftwo or more samples
Metals,Total
Digestion,Total Metals
Lead 210
Radium 226
Thorium,Isotopic
C10040255-002 BHV-2 04/05/1000:00 04/07/10 Filter Same As Above
C10040255-003 BHV-4 04/05/1000:00 04/07/10 Filter Same As Above
C10040255-004 BHV-5 04/05/1000:00 04/07/10 Filter Same As Above
C10040255-005 BHV-6 04/05/1000:00 04/07/10 Filter Same As Above
C10040255-006 Blank 04/0511000:00 04/07/10 Filter Same As Above----.....-...._-_.-----,-----
Any exceptions or problems with the analyses are noted in the Laboratory Analytical Report,the QAlQC Summary
Report,or the Case Narrative.
The results as reported relate only to the item(s)submitted for testing.
If you have any questions regarding these test results,please call.
ReportApproved By:~f~teven E.Carlston
Technical Director
ENERGYLABORATORIES,INC.·2393SaHCreekHighway (82601)•.p.oo Box 3258 •Casper,WY82602
701I.Free888.235.0515·3 "5.0515·Fax [phone] •casper@energyla '_•www.energylab.com
CLIENT:Denison Mines USA Corp
Project:BHV Air Samples 1st Quarter 2010
Sample Delivery Group:C10040255
ORIGINAL SAMPLE SUBMITTAL(S)
All original sample submittals have been returned with the data package.
Report Date:05/09/10
CASE NARRATIVE
SAMPLE TEMPERATURE COMPLIANCE:4"C (±2.0C)
Temperature ofsamples received may not be considered properly preserved by accepted standards_Samples that are hand
delivered immediately after collection shall be considered acceptable ifthere 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 ofexposure to
beginning ofcounting should not exceed 8 days.
SOIUSOLID SAMPLES
All samples reported on an as received basis unless otherwise indicated.
ATRAZINE,SIMAZINE AND PCB ANALYSIS
Data for PCBs,Atrazine and Simazine are reported from EPA 525.2.PCB data reported by ELI reflects the results for seven
individual Aroclors.When the results for all seven are NO (not detected),the sample meets EPA compliance criteria for
PCB monitoring.
SUBCONTRACTING ANALYSIS
Subcontracting of sample analyses to an outside laboratory may be required.If so,ENERGY LABORATORIES will utilize its
branch laboratories or qualified contract laboratories for this service.Any such laboratories will be indicated within the
Laboratory Analytical Report.
BRANCH LABORATORY LOCATIONS
eli-b -Energy Laboratories,Inc.-Billings,MT
eli-g -Energy Laboratories,Inc.-Gillette,Wi
eli-h -Energy Laboratories,Inc.-Helena,MT
eli-r -Energy Laboratories,Inc.-Rapid City,SO
eli-t -Energy Laboratories,Inc.-College Station,TX
CERTIFICATIONS:
USEPA:Wi00002,Radiochemical WY00937;FL-DOH NELAC:E87641,Radiochemical E871017;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 oforigin.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.
IIJiIN ENERGYLABORATORIES.INC.•2393Sail CreekHighway (82601)~P.O.Bo~3258 •Casper,WY82602
"".ToI/,Free 888.235.0515 ~3015.0515 •Fax [phone] •casper@energylt •www.energy/ab.com
.D
IIIGn VOLUME AIR SAMPLING REPORT
CLIENT:Denison Mines USA Corp
REPORT DATE:May 9,2010
PROJECT:BHV AirSamples lst Quarter2010
SAMPLE 10:BHV-]
Quarter/Date Sampled Concentration Counting L.L.D:Emuent Cone.·%Emuent
Air Volume Radionuclide JlCi/mL..Precision MDC JlCi/mL JlCilmL I.lCilmL..ConcentrationJlCilmL
C 10040255-00I n'IU 1.97E-15 N/A N/A 1.00E-16 9.00E·14 2.18E+00
First Qual1er 2010 ~2.15E-16 2.75E-17 4.62E-18 1.00E-16 300E·14 7.17E·01
Air Volume in mLs nfiRa 3.27E-16 8.8IE-18 2.12E·18 1.00E·16 9.00E·13 3.63E-02
1.36E+11 ~loPb 1.00E-14 8.93E-17 5.27E-17 2.00E·15 6.00E-13 1.67E+OO
+LLD's are from Reg.Guide 4.14
•Effluent Concentration from the NEW 10 CFR Pal1 20-Appendix B -Table 2
Year for Natural Uramum
Year for Thorium-230
Week for Radium-226
Day for Lead-210
ENERGYLABORATORIES,INC••2393SaN Creek Highway(82601)'p.o.Sox 3258 •Casper,WY82602
TOIlFree 888.235.0515 .::~'35.0515·Fax [phone] •casper@energyli yn'www.energylab.com
J
LABORATORY ANALYTICAL REPORT
Client:
Project:
LablD:
Client Sample ID:
Denison Mines USA Corp
BHV Air Samples 1st Quarter 2010
C10040255-001
BHV-1
Report Date:05/09/10
Collection Date:04/05/10
DateReceived:04/07/10
Matrix:Filter
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis DateI By
TRACE METALS
Uranium 0.395 mgffilter 0.0003 SW6020 04/15/10 19:041 ts
Uranium,Activity 268 pCi/Filter 0.2 SW6020 04/15/10 19:041 ts
RADIONUCLIDES -TOTAL
Lead 210 1360 pCi/Filter E909.0M 05/02/10 01 :43 1dm
Lead 210 precision (±)12 pCi/Filter E909.0M 05/02/10 01 :431 dm
Lead 210 MDC 7.2 pCi/Filter E909.0M 05/02/10 01:431 dm
Radium 226 44.4 pCi/Filter E903.0 04/23/10 18:49/jah
Radium 226 preCIsion (±)1.2 pCilFilter E903.0 04/23/10 18:491 jah
Radium 226 MOC 0.3 pCi/Filter E903.0 04/23/10 18:49/jah
Thorium 230 29 pCi/Filter E907.0 04/17/10 11:17 /dmf
Thorium 230 precision (±)3.7 pCi/Filter E907.0 04/17/1011:17/dmf
Thorium 230 MOC 0.63 pCilFilter E907.0 04/17/10 11:17 1dmf
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
MDC -Minimum detectable concentration
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
ENERGY LABORATORIES,INC.·2393Sah Creek Highway (82601)'Po.Bo)(3258 •Casper,WY82602
Toll Free 888.235.0515 •;.,'5.0515'Fax [phone] •casper@energyh '/71.www.energy/ab.com
HIGH VOLlII\1E AIR SAMPLING REPORT
CLIENT:Denison Mines USA Corp
REPORT DATE:May 9.2010
PROJECT:BIIV AirSamples 1st Quarter 20JO
SAMPLE 10:BIIV-2
QuarterlDateSampled Concentration Counting L.L.D:EffluentCone.·%EfOuent
Air Volume Radionuclide ",Ci/mL Prec:ision MOC ",Ci/mL IlCi/mL IlCi/mL Concentration",Ci/mL
C10040255-002 ....U 5.47E-16 N/A N/A 1.00E-16 9,00E-14 6.07E-01
First Quarter 2010 ~3o.y-h 1.42E-17 9.74E-18 5.02E-18 1.00E-16 3.00E-14 4.72E-02
Air Volume in mL 1~6Ra 4.66E-17 3.6IE-18 2.2IE-18 1.00E-16 9.00E-13 5.18E-03
1.36E+11 1lOPb 8.24E-15 8.22E-17 5.27E-17 2.00E-15 6.00E-13 1.37E+00
+LLD's are from Reg,Guide 4 14
*Effiuent Concentration from the NEW 10 CFR Part 20 -Appendix B -Table 2
Year for Natural Uranium
Year for Thorium·230
Week for Radium·226
Day for Lead-210
ENERGYLABORATORIES,INC••2393SahCreekHighway (82601)'p.o.Box 3258 •Casper,WY82602
7011Free 888.235.0515 ~3r .0515 •Fax [phone] •casper@energyla~....•www.energylab.com
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab ID:
Client Sample ID:
Denison Mines USA Corp
BHV Air Samples 1st Quarter 2010
C10040255-002
BHV-2
Report Date:05/09/10
Collection Date:04/05/10
DateReceived:04/07/10
Matrix:Filter
Analyses Result Units Qualifiers RL
MCU
QCL Method Analysis Date I By
TRACE METALS
Uranium
Uranium,Activity
0.110
74.3
mg/filter
pCi/FiIler
0.0003
0.2
SW6020
SW6020
04/15/10 19:09/ts
04/15/10 19:09/ts
RADIONUCLlDES·TOTAL
Lead 210
Lead 210 precision (±)
Lead 210 MDC
Radium 226
Radium 226 precision (±)
Radium 226 MDC
Thorium 230
Thorium 230 precision (±)
Thorium 230 MDC
1120 pCI/Filter
11 pCi/Filter
7.2 pCi/Filter
6.3 pCilFilter
0.5 pCilFilter
0.3 pCilFilter
1.9 pCilFilter
1.3 pCi/Filter
0.68 pCi/FiIler
E909.0M
E909.0M
E909.0M
E903.0
E903.0
E903.0
E907.0
E907.0
E907.0
05/02/10 01 :43/dm
05/02110 01:43 I dm
05102110 01:43 I dm
04/23/10 18:49 I jah
04123/10 18:49/Jah
04/23/10 18:49 I jah
04123/1009:24 I dmf
04123/1009:24 I dmf
04/23/10 09;24 I dmf
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
MDC -Minimum detectable concentration
MCl •Maximum contaminant level.
NO ~Not detected at the reporting limit.
ENERGYLABORATORIE.9,INC••2393SaltCreek Highway(82600'P.O.Sox 1258 r Casper;WY82602
TollFree 888.235.0515 •3f:'p.0515 ~Fax [phone] •casper@energylai J •www.energylab.com
mGn VOLUMEAIRSAMPLING REPORT
CLIENT:Denison Mines USA Corp
REPORT DATE:May 9,2010
PROJECT:BHV Air Samples lst Quarter 2010
SAMPLE 10:BHV-4
Quarter/DateSampled Concentration Counting L.L.D:Effluent Cone.*%EffluentRadionuclidePrecisionMDC~Ci/mLAirVolume~Ci/mL ~CilmL ,.Ci/mL I1Ci/mL Concentralion
CI0040255·003 n"'U 6.0IE-15 N/A NfA 1.00E·16 900E·14 6.67E+OO
First Quarter 2010 230Th 1.26E-16 1.76E-17 4.46E-18 1.00E·16 3.00E-14 4.19E-01
Air Volume in mLs 226Ra 1.34E·16 5.88E-18 2.23E-18 1.00E-16 9.00E·13 1.49E-02
L36E+11 210Pb 1.J9E-14 9.65E·17 5.27E·17 2,OOE·15 6.00E·13 1.99E+OO
+LLD's are from Reg.Guide 4.14
*Effiuent Concentration from the NEW 10 CFR Part 20-Appendix B -Table 2
Year for Natural Uranium
Year forThoTlum-230
Week for Radium·226
Day for Lead-210
,..~ENERGYLABORATORIE5.t INC.·2393Salt CreekHighway (82601)•P.O.80x.1258 •Casper,WY82602
701IFree888.235.0515 •3('.0515·Fax[phone]·casper@energylal •www.energylab.com
----------------
LABORATORY ANALYTICAL REPORT
Client:
Project:
lab 10:
Client Sample 10:
Denison Mines USA Corp
BHV Air Samples 1st Quarter 2010
C10040255-003
BHV-4
Report Date:05/09/10
Collection Date:04/05/10
DateReceived:04/07/10
Matrix:Filter
MCU
Analyses Resurt Units Qualifiers RL QCL Method Analysis Date /By
TRACE METALS
Uranium 1.21 mglfilter 0.0003 SW6020 04/15/10 19:29 I ts
Uranium,Activity 817 pCi/Filter 0.2 SW6020 04/15/10 19:29 I ts
RADIONUCUDES •TOTAL
Lead 210 1620 pCilFilter E909.0M 05/02/1001:43 I dm
Lead 210 precision (±)13 pCi/Filter E909.0M 05/02/1001:43 I dm
Lead 210 MOC 7.2 pCi/Filter E909.0M 05/02/10 01 :431 dm
Radium 226 182 pCi/Filter E903.0 04/24/10 01 :06 I jah
Radium 226 precision (±)0.8 pCi/Filler E903.0 04/24/10 01 :06 I jah
Radium 226 MOC 0.3 pCVFilter E903.0 04/24/1001:061 jah
Thorium 230 17 pCilFilter E907.0 04/19/10 19:48 I dmf
Thorium 230 precision (*)2.4 pCi/Filter E907.0 04/19/10 19:48 I dmf
Thorium 230 MDC 0,61 pCi/Filter E907.0 04/19/1019:481 dmf
Report
Definitions:
RL -Analyte reporting limit.
QCl -Quality control limit.
MDC •Minimum detectable concentration
MCl -Maximum contaminant level,
NO •Not detected at the reporting limit.
ENERGYLABORATORI£.':.INC.•2393 Salt Creek Highway (82601)'p.D.Bo)'.:?258 •Casper;WY82602TOil~ree 888.235.0515 •3C .0515 •Fax [phone] •casper@energylat •www.energylab.com
HIGH VOLUME AIRSAMPLING REPORT
CLIENT:Denison Mines USA Corp
REPORT DATE:May 9,2010
PROJECT:BHV Air Samples 1st Quarter2010
SAMPLE10:BHV-5
Quarter/Date Sampled Concentration Counting L.L.D:Emuent Conc.*%Emuent
Air Volume Radionuclide JlCilmL Precision MDC JlCi/mL JlCilmL JlCi/mL ConcentrationJlCilmL
C10040255-004 ·"v 4.78E-15 NlA N/A 1.00E-16 9.00E-14 5.3IE+00
First Quarter 2010 no.rh 3.73E-16 4.IOE~17 580E-18 1.00E-16 3.00E-14 1.24E+00
Air Volume in mLl ~~Ra 4.19E-16 1.02E·17 2.23E-18 1.00E-16 9.00E-13 4.66E-02
1.36E+II ~1~Pb 1.30E-14 1.00E-16 5.26E-17 2.00E-15 6.00E-13 2.17E+00
+LLD's are from Reg.Guide 4.14
"Effiuent Concentration from the NEW 10 CFR Part 20·Appendix B -Table 2
Year for Natural Uranium
Year for Thorium-230
Week for Radium-226
Day for Lead-21 0
ENERGYLABORATORIES,INC.•2393Salt Creek Highway (82601)•p.oo Box3258 •Casper,WY82602
TOilFree 888.235.0515 ~30 ;0515 •Fax [phone] ~casper@energylat'•www.energylab.com
LABORATORY ANALYTICAL REPORT
Client:
Project:
LablD:
Client Sample 10:
Denison Mines USA Corp
BHV Air Samples 1st Quarter 2010
C10040255·004
BHV·5
Report Date:05/09/10
Collection Date:04/05110
DateReceived:04/07/10
Matrix:Filter
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date 1By
TRACE METALS
Uranium 0.960 mglfilter 0.0003 SW6020 04/15/10 19:331 ts
Uranium,Activity 650 pCilFilter 0.2 $W6020 04/15/10 19:331 ts
RADIONUCLlDES·TOTAL
Lead 210 1770 pCilFilter E909.0M 05/02/1 0 01 :43 1dm
Lead 210 precision (:1:)14 pCi/FiIler E909.0M 05/02/10 01 :43 1dm
lead 210 MOC 7.2 pCilFilter E9090M 05/02/10 01.43 1dm
Radium 226 57.0 pCilFiller E903.0 04/24/10 01 :06 1jah
Radium 226 precision (:1:)1.4 pCilFilter E903.0 04/24/1 0 01 :06 1jah
Radium 226 MDC 0.3 pCilFilter E903.0 04/24/10 01 :061 jah
Thorium 230 51 pCilFilter E907.0 04/19/10 19:481 dmf
Thorium 230 precision (:1:)5.6 pCilFiller E907.0 04/19/10 19:481 dmf
Thorium 230 MOC 0.79 pCilFilter E907.0 04/19/10 19:481 dmf
Report
Definitions:
RL •Analyte reporting limit.
QCL -Quality control limit.
MDC •Minimum detectable concentration
MCl •Maximum contaminant level.
NO -Not detected at the reporting limit.
1IJlIi7.~.ENERGYLABORATORIES,INC.•2393SaltCreek Highway (82601)•P.O.BoJf.?258 •Casper,WY826027011Free888.235.0515 •3{.0515 •Fax [phone] •casper@energylai •www.energylab.com..
I-IIGH VOLUME AIR SAMPLING REPORT
CLIENT:Denison Mines USA Corp
REPORT DATE:May 9,2010
PROJECT:BHV AirSamples lst Quarter 2010
SAMPLE 10:BHV-6
Quarter/DateSampled Concentration Counting L.L.D.+Emuent Cone.*%EmuentRadionudidePrecisionMDCIlCi/mLAirVolumeIlCi/mL IlCilmL IlCi/mL IlCilmL Concentration
CI0040255-005 """V 9,63E-15 N/A NrA 1.00£-16 9.00E-14 1.07E+01
First Quarter 2010 no.rh 1.82E-16 2.26E-17 4,03E-18 1.00E-16 3.00E-14 6.07E-01
Air Volume in mL 226Ra 2.06E-16 7.14E-18 2.18E-18 1.00E-16 9.00E-13 2.29E-02
1.36E+11 210Pb 1.37E-14 1.03E-16 5.26E-17 2.00E-15 6.00E-13 2.29E+00
+LLD's are from Reg.Guide 4.14
*Emuent Concentration from the NEW 10 CFR Part 20 -Appendix B -Table 2
Year for Natural Uranium
Year for Thorium-230
Week for Radium-226
Day for Lead-210
ENERGYLABORATOR,ES,INC.•2393San CreekHighway (826Of)•P.O Bnx..3258 •Casper,WY82602
ToUFree 888.235.0515 •035.0515 •Fax [phone] •casper@energy!.m'www.energylab.com
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
BHV Air Samples 1st Quarter 2010
C10040255-005
BHV-6
Report Date:05/09/10
Collection Date:04/05/10
DateReceived:04/07/10
Matrix:Filter
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date/By
TRACE METALS
Uranium 1.94 mg/filter 0.0003 SW6020 04/15/10 19:371ts
Uranium,Activity 1310 pCilFilter 0.2 SW6020 04/15/10 19:371 ts
RAOIONUCLIOES -TOTAL
Lead 210 1870 pCilFilter E909.0M 05/02/10 01:43 1dm
Lead 210 precIsion (±)14 pCI/Filter E909.0M 05/02/10 01 :43 1dm
lead 210 MOC 7.2 pCi/Filter E909.0M 05/02/1001 :431 dm
Radium 226 28.0 pCi/Filter E903.0 0412411001 :061 jah
Radium 226 precision (±)1 pCi/Filter E903.0 04124/1001 :061 jah
Radium 226 MOC 0.3 pCi/FiIler E903.0 04124/1001 :061 jah
Thorium 230 25 pCi/Filter E907.0 04/19/10 19:48 1dmf
Thorium 230 precision (±)3.1 pCi/Filter E907.0 04119/10 19:481 dmf
Thorium 230 MOC 0.55 pCi/Filter E907.0 04/19/10 19:481 dmf
Report
Definitions:
RL -Analyte reporting limit.
QCl-Qual y control limit.
MOC -Minimum detectable concentration
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
1IIiIlI..ENERGYLABORATORIES,INC••2393SaltCreek Highway(8261..'01)•po...Box.1258 •Casper,WY82602••..TollF.ree 888.235.0515 •30 -,0515'Fax [phone] •casper@energylat •www.energylab.com
HIGH VOLUME AIRSAMPLING REPORT
CLIENT:Denison Mines USA Corp
REPORT DATE:May 9,2010
PROJECT:BUV Air Samples 1st Quarter 2010
SAMPLE 10:Blank
Quarter/DateSampled Concentration Counting L.L.D.+Emuent Conc.*%EmuentRadionuclidePrecisionMDCJlCilmLAirVolumeJlCilmLJlCilmLI1CilmLIlCi/mL Concentration
C10040255-006 n31U 1.67E-17 N/A N/A 1.00E-16 900E-14 1,86E-02
First Quarter 2010 BOTh -3.03E-18 3.83E-18 4.80E-18 1.00E-16 3.00E-14 -1.0IE-02
Air Volume in mL 226Ra 1.48E-18 1.43E-18 2.2IE-18 1.00E-16 9.00E-13 1.64E-04
1.36E+11 210Pb 3.50E-17 3.18E-17 5.27E-17 2.00E-15 6.00E-13 5.83E-03
Note:This sample uses 136,000,000 L ofair volume for comparison purposes.
+LLD's are from Reg.Guide 4.14
•Effluent Concentration from the NEW 10 eFR Part 20-Appendix B -Table 2
Year for Natural Uranium
Year for Thorium-230
Week for Radium-226
Day for Lead-210
ENERGYLABORATORIE."INC••2393 Salt Creek Highway (82601)•P.O.Box .11?58 •Casper,WY82602
TollRee 888.235.0515 •30i 0515 •Fax [phone] •casperrgenergylab..f www.energylab.com
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
BHV Air Samples 1st Quarter 2010
C10040255-006
Blank
Report Date:05/09/10
Collection Date:04/05/10
DateReceived:04/07/10
Matrix:Filler
Analyses Result Units Qualifiers RL
MCU
QCl Method Analysis Date1By
TRACE METALS
Uranium
Uranium,Activity
00034
2.3
mg/filler
pCi/Filter
B 0.0003
0.2
SW6020
SW6020
04/15/1019:421 ts
04/15/10 19:42 1ts
RADIONUCLIDES •TOTAL
lead 210
lead 210 precision (:1:)
lead 210 MDC
Radium 226
Radium 226 precision (:I:)
Radium 226 MOC
Thorium 230
Thorium 230 precision (:1:)
Thorium 230 MOC
4.8 pCi/Filter
4.3 pCi/Filler
7.2 pCi/Filter
0.2 pCilFilter
0.2 pCilFilter
0.3 pCi/Filter
-0.4 pCi/Filter
0.52 pCi/Filter
0.65 pCi/Filter
U
u
u
E909.0M
E909.0M
E909.0M
E903.0
E903.0
E903.0
E907.0
E907.0
E907.0
05/02/10 01:431 dm
05/02/1001:431 dm
05/02110 01:43 1dm
04/24/10 01 :06 1jah
04/24/10 01 :06 1jah
04124/1001 :061 jah
04/19/10 19:48 1dmf
04/19/10 19:48/dmf
04/19/10 19:48/dmf
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality conlrollimit.
MDC -Minimum detectable concentration
U -Not detected at minimum detectable concentration
MCl -Maximum contaminant level.
NO -Not detecled at Ihe reporting limit.
B -The analyte was detected in the method blank.
ENERGYLABORATORIE.S,INC.~2393SanCreekHighway(82601)·P.o.8".-.3258 •Casper,WY82602
ToU Free 888.235.0515 •.''35.0515 •Fax [phone] •casper@energyl.~m'www.energylab.com
QA/QC Summary Report
Client:Denison Mines USA Corp
Project:BHV Air Samples 1st Quarter 2010
Report Date:05/09/10
Work Order:C10040255
Analyte Count Result Units RL %REC LowLimit High Limit RPO RPOLimit Qual 1
Method:E903.0
Sample 10:C09100369·002FMS
Radium 226
Sample Matrix Spike
7.56 pCilFilter 112
Run:BERTHOLD 770-1_100416A
70 130
Batch:R131934
04/23/10 18:49
Sample 10:C09100369-o02FMSO
Radium 226
Sample 10:LCS·25805
Radium 226
Sample 10:MB-25805
Radium 226
Radium 226 precision (±)
Radium 226 MDC
Sample Matrix Spike Duplicate
7.56 pCi/FiJter
Laboratory Control Sample
17.7 pCi/Filter
~Method Blank
-0.2 pCi/Filter
0.10 pCi/Filter
0.2 pCi/Filter
Run:BERTHOLD 770-1_100416A
113-70 130 0.1
Run:BERTHOLD 770-1_100416A
119 70 130
Run:BERTHOLD 770-1_100416A
04/23/10 18:49
16.9
04/24/1001:06
04/24/10 01:06
U
Qualifiers:
RL -Analyte reporting limit.
MOC -Minimum detectable concentration
NO -Not detected at the reporting limit.
U -Not detected at minimum detectable concentration
ENERGYLABORATORIEt:INC.~2393SahCreekHighway(82601)·p.a Box3758 •Casper,WY82602
Toll Flee 888.235.0515 •307.;0515'Fax [phone] •casper@energylab.l www.energylab.com
QA/QC Summary Report
Client:Denison Mines USA Corp
Project:BHV Air Samples 1st Quarter 2010
Report Date:05/09/10
Work Order:C10040255
rAnalyte Count Result Units Rl %REC low Umit High limit RPO RPOLimit Qual
Method:E907.0 Batch:25805
Sample 10:C10040255·002AMS Sample Matrix Spike Run:EGG-ORTEC_100415A 04/17/10 11:17
Thorium 230 52.2 pCi/Filter 102 70 130
Sample 10:C10040255-002AMSO Sample Matrix Spike Duplicate Run:EGG-ORTEC_100415A 04/17/10 11 :17
Thorium 230 60.3 pCi/Filter 117 70 130 15 33.6
Sample 10:lCS·25805 Laboratory Control Sample Run:EGG-ORTEC_100415A 04/19/10 19.48
Thorium 230 6.05 pCi/Filter 127 70 130
Sample 10:MB·25805 ~Method Blank Run:EGG-ORTEC_100415A 04/19/10 19:48
Thorium 230 -0.1 pCi/Filter U
Thorium 230 precision (±)0.1 pCi/Filter
Thorium 230 MOC 0.2 pCi/Filter
Method:E907.0 Batch:R131977
Sample10:C10040412-Q01AMS Sample Matrix Spike Run:EGG-ORTEC_100421A 04/23/1009:24
Thorium 230 26.1 pCilFilter 108 70 130
Sample 10:C10040412·001AMSO Sample Matrix Spike Duplicate Run:EGG-ORTEC_100421A 04/23/1009:24
Thorium 230 26.1 pCilFilter 113 70 130 0.1 35.1
Sample 10:lCS·25861 Laboratory Control Sample Run:EGG-ORTEC_100421A 04/23/10 09:24
Thorium 230 5.27 pCi/Filter 107 70 130
Sample 10:MB-25861 ~Method Blank Run:EGG-ORTEC_100421A 04/23/1009:24
Thorium 230 -0.09 pCI/Filter U
Thorium 230 precision (:t)0.1 pCI/Filter
Thorium 230 MDC 0.2 pCilFilter
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
NO -Not detected at the reporting limit.
U -Not detected at minimum detectable concentration
ENERGYLABORATORIES,INC.•2393SahCreek Highway (82601)•P.O.ro.3258·Casper,WY82602
Toll Free 888.235.0515 -0235.0515 -Fax [phone] •casper@energ}:om •www.energylab.com
QA/QC Summary Report
Client:Denison Mines USA Corp
Project:BHVAir Samples 1st Quarter 2010
Report Date:05/0911 0
Work Order:C10040255
Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual I
Method:E909.0M
Sample 10:C09100227-006AMS
Lead 210
Sample Matrix Spike
1110 pCi/Filter 99
Run:BECKMAN 6100TA_100423B
70 130
Batch:PB-21 0-0691
05/02110 01:43
Sample 10:C09100227-006AMSO
Lead 210
Sample 10:MB-25805
Lead 210
Lead 210 precision (±)
Lead 210 MOe
Sample 10:LCS-25805
Lead 210
Sample Matrix Spike Duplicate
1240 pCVFilter
~Method Blank
4 pCi/Futer
3 pCi/Filter
5 pCi/Filter
Laboratory Control Sample
522 pCVFilter
Run:BECKMAN 6100TA_100423B
112 70 130 11
Run:BECKMAN 6100TA_100423B
Run:BECKMAN 6100TA_100423B
99 70 130
05/02/1001 :43
16.1
05/02110 01 :43
U
05/02/10 01 :43
Qualifiers:
RL -Analyte reporting limit.
MOC -Minimum detectable concentration
NO -Not detected at the reporting limit.
U -Not detected at minimum detectable concentration
ENERGYLABORATORIE.t:''NC••2393 Salt Creek Highway (82601)'P.O.Box,'J!'58 •Casper,WY82602
TollFree 888.235.0515 •307..~0515'Fax [phone] •casper@energylab.(,)www.energy/ab.com
QA/QC Summary Report
Client:Denison Mines USA Corp
Project:BHV Air Samples 1st Quarter 2010
Report Date:05/09/10
Work Order:C10040255
rAnalyte Count Result Units RL %REC Low Limit High Limit RPO RPDLimit Qual
Method:SW6020 Batch:25805
Sample 10:MB-25805 Method Blank Run:ICPMS2-C_100415A 04/15/10 18:36
Uranium 0.004 mglfilter 6E-C5
Sample 10:LCS2-25805 Laboratory Control Sample Run:ICPMS2-C_100415A 04/15/1018:40
Uranium 0.112 mglfifter 0.00030 108 85 115
Sample 10:C10040255·006AMS Sample Matrix Spike Run:ICPMS2-C_100415A 04/15/1019:46
Uranium 0.0612 mglfilter 0.00030 116 75 125
Sample 10:C10040255·006AMSO Sample Matrix Spike Duplicate Run:ICPMS2-C_100415A 04/15/10 19:50
Uranium 0.0626 mglfilter 0.00030 118 75 125 2.3 20
Qualifiers:
RL •Analyte reporting limit.
MOC -Minimum detectable concentration
NO -Not detected atthe reporting limit.
o
Energy Laboratories Inc
Workorder Receipt Checklist
Denison Mines USA Corp
Login completed by:Halley Ackerman
Reviewed by:
Reviewed Date:
o
IIIIIIIIIIII~IIIIIIIIIIIIIIIII~IIIII~IIIIIII~I
C10040255
Date Received:4/7/2010
Received by:ckw
Carrier name:Next Day Air
Shipping container/cooler in good condition?
Custody seals intact on shipping container/cooler?
Custody seals intact on sample bottles?
Chain ofcustody present?
Chain ofcustody 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?
Containerrremp 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
·C
Yes D
Yes D
N°D
N°D
N°D
N°D
No 0
No 0
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
§Bi&
"'1 ......I.B__
Chain of Custody and Analytical Request Record Page _1_of --.L'
-%Or •,.ml_-C·"T-PLEASE PRINT ,IProvide as much information as Dossible.\
Company Name:0 .M~n~Project Name,PWS,Permit,Etc.Sample Origin EPA/State Compliance:
U\1.$On 2>HV A1:~~AMfL~IST'~,..,,0'0 State:C,,\-t Yes 0 No 0
Report Mail Address:Po Bo)(gO'\Contact Name:Phone/Fax:Email:Sampler:(Please Print)
1\,\001\pJ mer 4~5 fc7g :;Q.~\"""CC""oJ\;o\t>.'k .Bl~~nC\u.\-84~11
InvoiceAddress:U InVOice Contact &Phone:Purchase Order:Quote/Bottle Order:"
S"'M<:..
..
ScUnt
Special Report/Formats:&rm&r1.'l7@O®[fJ@:@(!JJ§®'U'@:@)..Contact ELI prior to ::ihippe<l by:
~l \l)~(:l.O c;NO~a <ii RUSH sample submittal
~otJ)£~for charges and C'oolerID(s):
~co;gOI <ii 0 R scheduling -See ~}-.->0 >'n;W t:.Instruction PageDDWDEDD/EDT(ElectronicData)~(/)~1Jl~Io~=~0)-0 ReceiptTempDPOTWIWWTPFormat:u 0ot:()c Comments:"-«(/)1i:ii1:.i2 ::l U N/'A-DCDState:D LEVEL IV o ....t:«e~Qj$f::';::I-co~~I~'?~c vCtt]D Other:D NELAC ....Onlee:::l
::l <1>.=Q)~~~~~5ZCi.«I~c 9 w "0 Custody seal....E >1 W co On Bottle V N~Ci q en "0 On Cooler ~:;c~~.J:J ]I H Intact(/)
SAMPLE IDENTIFICATION Collection Collection MATRIX 0-Signature G)N(Name,Location,Interval,etc.)Date Time Mateh
1 BH\I ..i '-4-10 N/A 13 ..A I~
2 al-\V";t I~C\C1J~()1.5 S"
3 BI~V -4 1\9Innn
4 BH\J-5 ~I~
5 BI~V -b 1=~
6 ~1 AA.lk L\-~-tO NfA 1~-A ~-07~~
8 ~0
9 noI~
10 It:::::!
Custody l-r~n~~:;dU:f\~.L l.\-b-IOlTii030 :::J~~:~g;ture1J.JJ.'k"1
Received by (print):OalefTime:Signature:
Record RelinqUished by(print):0 DatefTime:Signature:V Received by(print):DatefTime:Signature:
MUST be
Signed T~"e;,ra~a~ualeJl une:~I,.~lgnalUre:
Sample Disposal:Return to Client:Lab Disposal:4·...,.'~J
In certain circumstances,samples submitted to Energy Laboratories,Inc.may be subcontracted to ot~er Qertified laboratories in order to complete the analysis requested.
This serves as notice ofthis possibility.All sub-contract data will be cle~notated on your analytical report.
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Period:Jl!nuary 1,2010 through April 5,2.2.10 (1stQuarter 2010)
BHV-1 on stream %.98.6%0 BHV-1 To.....Volume:4.81E+06
Page 1
Loading,Per CentTotalTotalStartStopStop
o
Startot
Week Filler
#N beumr ae ate Gross Tare Net Time Time Time Liters ma/m3 On Stream SCFM
I 8t54794 4-Jan-10 II-Jan-IO 4.6931 4.4972 0.1959 17941.0 17n3.3 10063.2 10,400,970 0.0188 99.8%36.5
2 8154788 II-Jan-IO 18-Jan-IO 4.6601 4.5100 0.1501 18105.4 17941.0 9865.8 10,336,629 0.0145 97.9"10 37.0
3 8154782 18-Jan-IO 25-Jan-10 4.5058 4.4725 0.0333 18278.2 18105.4 10366.2 10,860,910 0.0031 102.8%37.0
4 8154776 25-Jan-IO I-Feb-IO 4.5724 4.5039 0.0685 18443.5 18278.2 9917.4 10,390,691 0.0066 98.4%37.0
5 8154770 Ol-feb-IO 8-Feb-10 4.5479 4.4666 0.0813 18610.3 18443.5 10005.6 10,483,101 0.0078 99.3%37.0
6 8154764 08-Feb-10 15-Feb-10 4.5239 4.4565 0.0674 18781.5 18610.3 10275.6 10.765,986 0.0063 101.9"/.37.0
7 8154758 15-Feb-1O 23-Feb·1O 4.5752 4.4583 0.1169 18969.2 18781.5 11263.8 11,769,451 0.0099 97.8%36.9
8 8154752 22-Feb-10 I-Mar.IO 4.5719 4.4931 0.0788 19117.1 18969.2 8871.6 9.269.861 0.0085 88.0"10 36.9
9 8154745 Ol-Mar-IO 8-Mar·10 4.6105 4.5100 0.1005 19284.3 19117.1 10030.2 10,480,472 0.0096 99.5%36.9
10 8154739 08·Mar-10 15-Mar-IO 4.5425 4.4832 0.0593 19448.9 19284.3 9876.0 10.235,453 0.0058 98.0"10 36.6
II 8154733 15-Mar-10 23-Mar·10 4.5829 4.4770 0.1059 19620.5 19448.9 10298.4 10.614,903 0.0100 89.4%36.4
12 8154727 23-Mar-10 29-Mar-10 4.6189 4.4967 0.1222 19785.5 19620.5 9897.6 10.201,785 0.0120 114.6%36.4
13 8154721 29-Mar-10 5-ADr-10 4.8693 4.5031 0.3662 19951.4 19785.5 9954.0 10,259,919 0.0357 98.7%36.4
Totals 91 2184.0 4.605723 4.4867n 0.1189 130685.4 136.010.130 0.0114 98.9%36.8
BHV-2 on stream %98.6%BHV-2 Total Volume:4.80E+06
loading,Per centTotalTotalStartStopStopStartFilterWeek
#Number Date Date Gross Tare Net Time Time Time Liters maJm3 On Stream SCFM
1 8154193 04-Jan-10 11-Jan-10 4.6408 4.4824 0.1584 28131.1 21963.5 10057.2 10,394,769 0.0152 99.8%36.5
2 8154787 ll-Jan-10 18-Jan-l0 4.6289 4.4863 0.1426 28294.8 28131.1 9821.4 10.290,110 0.0139 97.4%37.0
3 8154781 lB-Jan-10 25-Jan-l0 4.4805 4.4518 0.0287 28467.4 28294.8 10351.2 10,845,194 0.0026 102.7%31.0
4 8154775 25-Jan-10 01-Feb-l0 4.4823 4.4821 0.0002 28633.2 28467.4 9948.0 10,422,752 0.0000 98.7%37.0
5 8154769 01-Feb-l0 08-Feb-l0 4.5414 4.4780 0.0634 28800.8 28633.2 10060.2 10,540,306 0.0060 99.8%37.0
6 8154763 08-Feb-10 15-Feb-l0 4.5541 4.4755 0.0786 28970.6 28800.8 10188.6 10,674,834 0.0074 101.1%37.0
7 8154757 15-Feb-l0 23-Feb-l0 4.6289 4.5064 0.1225 29158.4 28970.6 11266.2 11,771,958 0.0104 97.8%36.9
8 8154751 22-Feb-l0 01-Mar-l0 4.5827 4.5030 0.0797 29305.7 29158.4 8836.2 9,232,872 0.0086 87.7%36.9
9 8154744 01-Mar-10 08-Mar-10 4.6843 4.4852 0.1991 29471.5 29305.7 9952.2 10,398,971 0.0191 98.7%36.9
10 8154738 08-Mar-10 15-Mar-l0 4.5772 4.4882 0.0890 29638.1 29471.5 9991.8 10,355,468 0.0086 99.1%36.6
11 8154732 15-Mar-l0 23-Mar-l0 4.6247 4.5010 0.1237 29809.2 29638.1 10269.6 10,585,218 0.0117 89.1%36.4
12 8154726 23-Mar-10 29-Mar-l0 4.6801 4.4962 0.1839 29974.6 29809.2 9921.0 10,225,904 0.0180 114.8%36.4
13 8154720 29-Mar-10 05-Apr-l0 4.8856 4.4819 0.4037 30140.6 29974.6 9961.2 10,267,340 0.0393 98.8%36.4
Totals 91 2184.0 4.614731 4.486 0.1287 130624.8 136,005,696 0.0124 98.9%36.8
BHV-4 on stream %98.7%BHV'".
Total Volume:4.81E+06
Week Filler Start Stop Stop Start Total Total Loading,PerCent
#Number Date Date Gross Tare Net Time Time Time Liters ma/m3 On Stream SCFM
1 8154792 04-Jan-10 11-Jan-l0 4.7153 4.4862 0.2291 3803.0 3635.8 10030.2 10,366,863 0.0221 99.5%36.5
2 8154786 11-Jan-10 18-Jan-10 4.7469 4.4823 0.2646 3968.0 3803.0 9899.4 10,371,832 0.0255 98.2%37.0
3 8154780 18-Jan-10 25-Jan-10 4.4917 4.4573 0.0344 4141.3 3968.0 10397.4 10,893,599 0.0032 103.1%37.0
4 8154774 25.Jan-l0 01-Feb-l0 4.5494 4.4506 0.0988 4308.2 4141.3 10014.0 10,491,902 0.0094 99.3%37.0
5 8154768 01-Feb-l0 08-Feb-l0 4.5564 4.4735 0.0829 4474.9 4308.2 10004.4 10,481,843 0.0079 99.3%37.0
6 8154762 0B-Feb-10 15-Feb-10 4.6078 4.4809 0.1269 4644.2 4474.9 10158.6 10,643,402 0.0119 100.8%37.0
7 8154756 15-Feb-10 23-Feb-10 4.7136 4.4943 0.2193 4829.9 4644.2 11139.0 11,639,048 0.0188 96.7%36.9
8 8154750 22-Feb-l0 01-Mar-10 4.5985 4.4915 0.1070 4980.2 4829.9 9018.0 9,422.833 0.0114 89.5%36.9
9 8154743 01-Mar-l0 0B-Mar-l0 4.5942 4.4728 0.1214 5147.8 4980.2 10051.2 10,508,684 0.0116 99.8%36.9
10 8154737 08-Mar-l0 15-Mar-l0 4.5565 4.4718 0.0847 5309.8 5147.8 9718.8 10,072,531 0.0084 96.4%36.6
11 8154731 15-Mar-10 23-Mar-l0 4.6777 4.5138 0.1639 5482.5 5309.8 10362.0 10,680,458 0.0153 89.9%36.4
12 8154725 23-Mar-10 29-Mar-l0 4.6879 4.5236 0.1643 5647.7 5482.5 9913.2 10,217,865 0.0161 114.7%36.4
13 8154719 29-Mar-l0 05-Apr-l0 4.8728 4.5071 0.3657 5814.4 5647.7 10006.2 10,313,723 0.0355 99.3%36.4
Totals 91 2184.0 4.643746 4.485054 0.1587 130718.4 136,104,583 0.0152 99.0%36.8
BHV-5 on stream %98.7%BHV·5 Total Volume:4.81E+06
Loading,Per CentTotalTotalStartStopStopStartWeekFilter
#Number Date Date Gross Tare Net Time Time Time Liters maJm3 On Stream SCFM
1 8154791 O4.Jan-10 11-Jan-10 4.6906 4.5100 0.1806 28100.0 27932.3 10058.4 10,396,009 0.0174 99.8%36.5
2 8154785 11.Jan-l0 18-Jan-10 4.8111 4.4903 0.3208 28264.6 28100.0 9878.4 10,349,830 0.0310 98.0%37.0
3 8154779 1B-Jan-l0 25-Jan-10 4.5468 4.4810 0.0658 28437.6 28264.6 10381.2 10,876,626 0.0060 103.0%37.0
4 8154773 25-Jan-10 01·Feb-l0 4.5761 4.4737 0.1024 28604.1 28437.6 9991.2 10,468,013 0.0098 99.1%37.0
5 8154767 01-Feb-10 08-Feb-l0 4.5853 4.4669 0.1184 28771.1 28604.1 100t4.6 10,492,530 0.0113 99.4%37.0
6 8154761 0B-Feb-l0 15-Feb-10 4.5728 4.4739 0.0989 28940.6 28771.1 10114.2 10,659,747 0.0093 100.9%37.0
7 8154755 15-Feb-l0 23-Feb-10 4.5638 4.4863 0.0775 29126.6 28940.6 11159.4 11,860,364 0.0066 96.9%36.9
8 8154749 22-Feb-l0 01-Mar-10 4.5929 4.4885 0.1044 29276.1 29126.6 8970.0 9,372,678 0.0111 89.0%36.9
9 8154742 01-Mar-10 08-Mar-10 4.6171 4.4986 0.1185 29443.3 29276.1 10032.6 10,482,980 0.0113 99.5%36.9
10 8154736 08-Mar-10 15-Mar-10 4.5694 4.4969 0.0725 29607.2 29443.3 9829.8 10,187,571 0.0071 97.5%36.6
11 8154730 15-Mar-l0 23-Mar-10 4.6075 4.4633 0.1442 29779.8 29607.2 10360.2 10,678,602 0.0135 89.9%36.4
12 8154724 23-Mar-l0 29-Mar-10 4.6723 4.5095 0.1628 29944.5 29779.8 9880.8 10,184,469 0.0160 114.4%36.4
13 8154718 29-Mar-l0 05-ADr-10 4.8546 4.5308 0.3238 30111.0 29944.5 9988.8 10,295,788 0.0314 99.1%36.4
Totals 91 2184.0 4.635408 4.489977 0.1454 130719.6 136,105,208 0.0140 99.0%36.8
Period:January 1,2010 through AprilS.2".oJ (1stQuarter 2010)o Page 2
BHV-8 on stream %98.7%BHV-6 Total Volume:4.81E+06
Week Filter Start Stop Stop Start Total Total Loading,PerCent
#Number Date Date Gross Tare Net Time Time Time Liters moIm3 On Stream SCFM
1 8154790 04-Jan-l0 11.Jan-10 4.6659 4.4893 0.1766 5152.1 4985.5 9995.4 10,330,895 0.0171 99.2%36.S
2 8154784 11-Jan·l0 18.Jan-l0 4.6717 4.4846 0.1871 5318.2 5152.1 9966.6 10,442,239 0.0179 98.9%37.0
3 8154778 18·Jan·10 25-Jan-10 4.4954 4.4554 0.0400 5490.0 5318.2 10309.8 10,801,818 0.0037 102.3%37.0
4 8154772 25-Jan·10 01-Feb-10 4.5634 4.4804 0.0830 5656.1 5490.0 9966.6 10,442,239 0.0079 98.9%37.0
5 8154766 01·Feb-10 08-Feb-10 4.5918 4.4783 0.1135 5823.1 5656.1 10021.8 10,500,074 0.0108 99.4%37.0
6 8154760 08-Feb-10 15-Feb·10 4.5619 4.4683 0.0936 5993.0 5823.1 10189.8 10,676,091 0.0088 101.1%37.0
7 8154754 15-Feb-10 23-Feb·10 4.6187 4.5059 0.1128 6178.9 5993.0 II158.2 11,659,110 0.0097 96.9%36.9
8 8154748 22-Feb-10 01-Mar-l0 4.5937 4.5010 0.0927 6328.5 6178.9 8976.6 9,379,574 0.0099 89.1%36.9
9 8154741 01·Mar·l0 08-Mar-10 4.5886 4.4864 0.1022 6496.0 6328.5 10046.4 10,497,400 0.0097 99.7%36.9
10 8154735 08·Mar·l0 15-Mar-l0 4.5581 4.4945 0.0636 6659.2 6495.7 9811.8 10,168,916 0.0063 97.3%36.6
11 8154729 15·Mar-l0 23-Mar-l0 4.6264 4.5110 0.1154 6831.9 6659.2 10363.8 10,682,313 0.0108 90.0%36.4
12 8154723 23-Mar-l0 29·Mar-l0 4.6634 4.5195 0.1439 6996.8 6831.9 9893.4 10,197,456 0.0141 114.5%36.4
13 8154717 29-Mar-l0 05·Apr·l0 4.8809 4.4961 0.3848 7163.5 6996.8 9997.2 10,304,446 0.0373 99.2%36.4
Totals 91 2184.0 4.621531 4.490054 0.1315 130697.4 136,082,572 0.0126 98.9%36.8
AlL BHY on stream %98.6%
Week
#Blanks
Start
Date
Stop
Date Net
1 8154789 04-Jan-l0 11.Jan-l0 4.4938
2 8154783 ll-Jan-l0 18·Jan-l0 4.4665
3 8154777 18·Jan·l0 25-Jan-l0 4.4578
4 8154771 25-Jan-10 01-Feb·l0 4.4685
5 8154765 01·Feb-l0 06-Feb-l0 4.4745
6 8154759 08-Feb-l0 15-Feb-l0 4.4781
7 8154747 15-Feb-l0 23-Feb-l0 4.4987
8 8154746 22·Feb-10 01-Mar-10 4.4765
9 8154740 01-Mar-10 08-Mar-l0 4.4795
10 8154734 08-Mar-l0 15-Mar-10 4.4751
11 8154728 15-Mar-l0 23-Mar-l0 4.5155
12 8154722 23-Mar-10 29·Mar-10 4.5079
13 8154716 29-Mar·10 05-Apr-10 4.4815
Totals 91 2184.0 4.4826
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Analytical Excellence f
Helena.MT 877-472-0711 Billings,MT 800-735-4489 •Casper,WY 888-235-0515
Gillette,WY 866-686-7175.Rapid C 888-612-1225 •College Station.TX 888-690-2218
ANALYTICAL SUMMARY REPORT
August08,2010
Denison Mines USA Corp
6425 S Hwy 191
Blanding,UT 84511
Workorder No.:C10070338
Project Name:2nd Quarter BHV Air
Energy Laboratories.Inc.received the following 6 samples for Denison Mines USA Corp on 719/2010 for analysis.
Sample 10 Client Sample 10 Collect Date Receive Date Matrix Test
C10070338-001 BHV-1
C10070338-002 BHV-2
C10070338-003 BHV-4
C10070338-004 BHV-5
C10070338-005 BHV-6
C10070338-006 Blank
07/05/1000:00 07/09/10
07/05/1000:00 07/09/10
07/05/1000:00 07/09/10
07/05/1000:0007/09/10
07/05/1000:00 07/09/10
07/05/1000:00 07/09/10
Filter
Filter
Filter
Filter
Filter
Filter
Composite of two or more samples
Metals,Total
Digestion,Total Metals
Lead 210
Radium 226
Thorium,Isotopic
Same As Above
Same As Above
Same As Above
Same As Above
Same As Above
This report was prepared by Energy Laboratories,Inc.,2393 Salt Creek Hwy.,Casper.W(82601.Any exceptions
or problems with the analyses are noted in the Laboratory Analytical Report.the QNQC Summary Report,or the
Case Narrative.
The results as reported relate only to the item(s)submitted for testing.
If you have any questions regarding these test results,please call.
Report Approved By'~~
Steve.,E.Carlston
Technical DirectQr
~www.energylab.com
~AnalyticalExcellence S'
Helena,MT 877-472-0711 •Billings,MT 800-735-4489.Casper,Wy 888-235-0515
Gillette,WY 866-686-7175 •Rapid C 888-672-1225 •College Station,IX 888-690-2218
CLIENT:Denison Mines USA Corp
Project:2nd Quarter BHVAir
Sample Delivery Group:C10070338
Report Date:08/08/10
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 ofsamples received may not be considered properly preserved by accepted standards.Samples that are hand
delivered immediately after collection shall be considered acceptable ifthere 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 forlowTDS 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 ofexposure to
beginning of counting should not exceed 8 days.
SOIUSOLID SAMPLES
All samples reported on an as received basis unless otherwise indicated.
ATRAZINE,SIMAZINE AND PCB ANALYSIS
Data for PCBs,Atrazine and Simazine are reported from EPA 525.2.PCB data reported by ELI reflects the results for seven
individual Aroclors.When the results for all seven are NO (not detected),the sample meets EPA compliance criteria for
PCB monitoring.
SUBCONTRACTING ANALYSIS
Subcontracting of sample analyses to an outside laboratory may be required.Ifso,ENERGY LABORATORIES will utilize its
branch laboratories or qualified contract laboratories for this service.Any such laboratories will be indicated within the
Laboratory Analytical Report.
BRANCH LABORATORY LOCATIONS
eli-b -Energy Laboratories,Inc.-Billings,MT
eli-g -Energy Laboratories,Inc.-Gillette,WY
eli-h·Energy Laboratories,Inc.-Helena,MT
eli-r -Energy Laboratories,Inc.•Rapid City,SO
eli-t -Energy Laboratories,Inc.-College Station,TX
CERTIFICATIONS:
USEPA:WY00002,Radiochemical WY00937;FL-DOH NELAC:E87641 ,Radiochemical E871017;California:02118CA;
Oregon:WY200001;Utah:3072350515;Virginia:00057;Washington:C1903
ISO 17025 DISCLAIMER:
The results ofthis 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 oforigin.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.
EN:RGY
_I\H()Hf\.r Uh'IL::5
Helena,MJ 171-t1200711 Bil.MJ I8D·731-44n .,Casper,WY .....235-0515
Gillette.WY .......·7175.Rapid City,SD .....72-1225.COU..stltlon,1X111-II11-2211
HIGH VOLUME AIR SAMPLINGREPORT
CUENT:Denison MinesUSA Corp
REPORT DATE:August 8,2010
PROJECT:2ndQuarter BHV Air
SAMPLE 10:BHV·l
QuarterlDate Sampled Concentration Counting L.L.D.+EmuentCone.*%Emuent
Air Volume Radlonuclide pCifmL Precision MDCpCilmL pCilmL pCilmL ConcentrationpCifmL
CI0040255-OO1 n;o,U 1.97E-15 N/A N/A IE-16 9.ooE-14 2.18E+OO
Firsl Quarter 2010 2lOorh 2.15E-16 2.75E-17 5E·18 IE-l6 3.ooE-14 7.l7E-01
Air Volume in mLs 2~a 3.27E-16 B.BIE-IS 2E-18 IE-16 9.ooE-13 3.63E-02
1.36E+II 210Pb l.ooE-14 B.93E-17 5E-17 2E-15 6.ooE-13 1.67E+OO
QuarterlDateSampled Concentration Counling L.L.D:Emuent Cone.*%Emuent
AirVolume Radlonuelide pCifmL Precision MDC"CilmL pCilmL pCilmL ConcentrationpCilmL
CI0070338-00I ...u 1.58E-15 N/A N/A lE-16 9.ooE-14 1.76E+OO
Second Quarter2010 2JO.rh 4.7IE-16 4.73E-17 5E-18 lE-16 3.00E-14 1.57E+00
Air Volume in mL.s 2:!6Ra 7.70E-16 3.18E-17 6E-IB IE-16 9.00E-13 8.56E-{)2
1.36E+11 210Pb 4.07E-15 6.43E-17 6E-17 2E-l5 6.00E-13 6.78E-{)I
+U'o's are from Reg.Guide4.14
*Ernuenl Concenlralion from the NEW 10CFR Parl20- Appendix B -Table2
Year for Nalural Uranium
Year forThorium-230
Week for Radium-226
Day for L.ead-210
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AnafyticalExcellence r Helena,MT 877-472-0711 •Billings,MT 800-735-4489.Casper,WY 888-235-0515
Gillette,WY 866-686-7175.Rapid C 888-672-1225.College Station,TX 888-690-2218
Client:
Project:
Lab 10:
Client Sample 10:
LABORATORY ANALYTICAL REPORT
Denison Mines USA Corp
2nd Quarter BHV Air
C10070338-001
BHV-1
Report Date:08/08/10
Collection Date:07/05/10
DateReceived:07/09/10
Matrix:Filter
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date I By
TRACE METALS
Uranium,Activity 216 pCi/Filter 0.2 SW6020 08/0211021:131ts
RADIONUCLlDES·TOTAL
lead 210 555 pCi/Filter E909.0M 07120/1020:241 jgc
lead 210 precision (±)8.8 pCi/Filter E909.0M 07120/1020:241 jgc
lead 210 MOC 7.6 pCi/Filter E909.0M 07120/1020:241 jgc
Radium 226 105 pCi/Filter E903.0 07126/10 17:001ep
Radium 226 precision (±)4.3 pCi/Filler E903.0 07126/10 17:001ep
Radium 226 MOC 0.8 pCi/Filler E903.0 07126110 17:001ep
Thorium 230 64 pCi/Filter E907.0 07120/1014:371 dmf
Thorium 230 precision (±)6.4 pCi/Filter E907.0 07120/1014:371 dmf
Thorium 230 MOC 0.70 pCi/Filter E907.0 07120/10 14:371 dmf
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
MOC - Minimum delectable concentration
MCl -Maximum contaminant level.
NO -Not detected at the reporting lim'•
EN:RGY
LAI::H..;H/\I Cf"IES
Hellnl,lIT 177-412.0711 •8h.)lIT ...735-4481 •CliPII',W'(....235-051S
G1111tt8,W'(.......-1115 •Rlpld City,SO UI-112·1225 •CoIII1P stltion,lX 811-&11-2211
HIGH VOLUME AIR SAMPLING REPORT
CLIENT:Denison Mines USA Corp
REPORTDATE:August8,2010
PROJECT:2ndQuarter BHV Air
SAMPLEID:BHV.2
QuarterlDateSampled Concentration Counting L.L.D.+EmuentCone.*%Emuent
Air Volume Radionuclide IICilmL Precision MDCIIClImL IICilmL "CilmL Concentration"CilmL
C10040255-002 ""'u 5.47E-16 N/A N/A lE-16 9.00E-14 6.07E-01
Firsl Quarter2010 ':J<Th 1.42E-17 9.74E-18 5E-18 IE-16 3.00E-14 4.72E-02
Air Volume in mls ~~Ra 4.66E-17 3.6IE-18 2E-18 IE-16 9.00E-13 5.186-03
1.36E+II 210Pb 8.24E-15 8.22E-11 5E-17 2E-15 6.00E-13 1.376+00
QuarterlDateSampled Concentration Counting L.L.D.'EmuentCone.*%EmuentRadionuclidePrecisionMDCIiCilmLAirVolumeIICilmLpCilmLIICilmLIICilmLConcentration
CJ0070338-002 "'V 3.58E-16 N/A N/A 1E-16 9.00E-14 3.976-01
Second Quaner2010 1JOrh 6.64E-17 1.20E-17 5E·18 1E-16 3.00E-14 2.21E-ol
Air Volume in mls ~~6Ra 9.90E-17 1.18E-17 6E-18 IE-16 9.00E-13 1.10E-02
1.36E+11 110Pb 2.01E-15 5.11 E-17 6E-17 2E-15 6.006-13 3.35E-01
+LLD's are from Reg.Guide 4.14
·Effluent Concentration from the NEW 10 CFR Pan 20-Appendix B -Table 2
Year for Natural Uranium
Year for Thorium-230
Week for Radium-226
Day for Lead-210
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Analytical[xc,l/,ac,$'
Helena,MT 871-412-0711 •Billings,MT 800-735-4489 •Casper,WY 888-235-0515
Gillette,WY 866-686-7175.Rapid C 888-612-1225.College Station,TX 888-690-2218
Client:
Project:
LabID:
Client Sample to:
LABORATORY ANALYTICAL REPORT
Denison Mines USA Corp
2nd Quarter BHV Air
C10070338-002
BHV-2
Report Date:08/08/10
Collection Date:07/05/10
DateReceived:07/09/10
Matrix:Filter
MCU
Analyses Result Units Qualifiers RL QCL Method Anatysls Date I By
TRACE METALS
Uranium,Activity 48.8 pCilFilter 0.2 SW6020 08/02110 21:18/ts
RAOIONUCLlDES·TOTAL
lead 210 275 pCi/Filler E909.oM 07120/10 22:25 1jgc
lead 210 precision (±)7.0 pCi/Filler E909.0M 07120/1022:251jgc
lead 210 MOC 7.6 pCi/Filter E909.oM 0712011022:251 jgc
Radium 226 13.5 pCi/Filter E903.o 0712611017:001 ep
Radium 226 precision (±)1.6 pCi/Filter E903.o 07/26/1017:001 ep
Radium 226 MOC 0.8 pCi/Filter E903.o 07126/1017:001 ep
Thorium 230 9.1 pCilFilter E907.o 07120/10 14:371 dmf
Thorium 230 precision (±)1.6 pCilFilter E907.0 07120/10 14:371 dmf
Thorium 230 MOC 0.65 pCilFiller E907.0 07/20/10 14:371 dmf
Report
Definitions:
Rl -Analyte reporting limit.
OCL -Quality control limit.
MDC -Minimum delectable concentration
MCl -Maximum contaminanllevel.
NO -Not detected allhe reporting limit.
EN:RGY
/".~Il..J I.,I ( I J I •
HIIIIlI,III171-412-0111 •Bill.)IIT n1-135-441t •CISpill',W'(811-235-0111
Gill.W'(014"-71J5 •Rapid City,SO .....12-1225 •Coli...Slltion,IX .1~1D-221'
HIGH VOLUME AIR SAMPLING REPORT
CLIENT:Denison Mines USA Corp
REPORT DATE:August8.2010
PROJECT:2ndQuarter BHV Air
SAMPLE10:BHV-4
QuarterlDate Sampled Concentration Counting L.L.D.+EmuentConc.*%Emuent
Air Volume Radionuelide IlCilmL Precision MDCIlCi/mL )lCifmL )lCilmL Concentration
IlCilmL
Cl00402SS-003 ••..U 6.0IE·15 N/A N/A IE-16 9.00E-14 6.67E+OO
Fi~tQUal1er2010 !JOrh 1.26E·16 1.76E-17 4E-IS IE-16 3.00E-14 4.19E.Ql
Air Volume in mLs :"~Ra 1.34E·16 S.88E-IS 2E-18 IE·16 9.00E-13 1.49E.Q2
1.36E+ll ~loPb 1.19E-14 9.6SE-17 SE·17 2E·1S 6.00E·13 1.99E+OO
QuarterlDateSampled Concentration Counting L.L.D.+EmuentCone.*%Emuent
AirVolume Radlonudide
IlCllmL Predsion MDC)lCilmL IlCl/mL IlCifmL ConcentrationIlCilmL
Cl007033S-003 "'u 2.33E-IS N/A N/A lE-16 9.00E-14 2.59E+OO
Second Quarter 20I0 !JOrh 7.29E-16 6.99E-17 SE·18 lE-16 3.00E-14 2.43E+OO
Air Volume in mLs !:!6Ra 2.66E-16 1.95E-17 6E·18 IE-16 9.00E-13 2.96E-02
1.35E+ll 210Pb 3.27E-IS 5.99E-17 6E·17 2E-15 6.00E-13 5.4SE-Ol
+LLD's are rrom Reg.Guide4.14
-Effluent Concentration rrom the NEW 10 CFR Part 20 -Appendil(B-Table 2
Year ror Natural Uranium
Year rorThorium-230
Week ror Radium-226
Day rOT Lead-210
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AnalyticalExcellence s·-
Helena,MT 877-472-0711.Billings,MT 800-735-4489.Casper,WY 888-235-0515
Gillette,WY 866-686-7175 •Rapid C 'p 888-672-1225 •College Station,TX 888-690-2218
Client:
Project:
Lab 10:
Client Sample 10:
LABORATORY ANALYTICAL REPORT
Denison Mines USA Corp
2nd Quarter BHVAir
C10070338-003
BHV-4
Report Date:08/08/10
Collection Date:07/05/10
DateReceived:07/09110
Matrix:Filter
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date 1By
TRACE METALS
Uranium.Activity 316 pCI/Filter 0.2 SW6020 08/02/1021:23/ts
RADIONUCLIDES -TOTAL
lead 210 443 pCI/Filter E909.0M 0712111000:271jgc
lead 210 precision (±)8.1 pCI/Filter E909.0M 07121110 00:271jgc
lead 210 MOC 7.6 pCI/Filter E909.0M 07/21/10 00:271jgc
Radium 226 36.1 pCi/Filter E903.0 07126/1017:001 ep
Radium 226 precision (±)2.6 pCi/Filter E903.0 07126/10 17:00/ep
Radium 226 MOC 0.9 pCI/Filter E903.0 07126/10 17:00/ep
Thorium 230 99 pCI/Filter E907.0 07120/1014:371 dmf
Thorium 230 precision (±)9.5 pCi/Filter E907.0 07120/1014:371 dmf
Thorium 230 MDC 0.65 pCI/Filter E907.0 07120/10 14:371 dmf
Report
Definitions:
Rl -Analyte reporting limit
QCL -Quality control limit.
MDC •Minimum detectable concentration
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
Helena".I17-412-o111 •811 )MT ....735-44"•Casper,WY 1...235-051S
Glleaa,WY nl-l~-lnS •Rapid City,SO aI-I12-1225 •CoiItIa Statioll,IX111-&11-2211
HIGH VOLUME AIR SAMPLING REPORT
CLIENT:Denison Mines USA Corp
REPORTDATE:A",gust 8,2010
PROJECT:2nd Quartel"BHV Ail"
SAMPLE10:BHV·S
Quartel"lDateSampled Concentrntion Counting L.L.D.+Effluent Cone.·%Emuent
AirVolume Radionuclide IICilmL Precision MDCItCilmL IICilmL ItCilmL ConcentrationItCilmL
C10040255-004 ·"U 4.78E-15 N/A N/A IE-16 9.00E·14 5.3IE+OO
First Quarter20I0 ~J<Th 3.73E-16 4.IOE-17 6E·18 lE-16 3.00E-14 1.24E+OO
Air Volume in mLs 2~6Ra 4.19E·16 1.02E-17 2E·18 lE-16 9.00E-13 4.66E-02
1.36E+11 ~loPb l.30E·14 I.00E-16 5E-17 2E·IS 6.00E-13 2.17E+OO
QuarterlDateSampled Concentration Counting L.L.D.+Effluent Cone.·%Effluent
Ail"Volume Radionuclide
IICilmL Precision MDCItCilmL ItCilmL IICilmL ConcentrationIICilmL
CI0070338-004 "'LU 4.3SE·1S N/A N/A lE-16 9.ooE-14 4.83E+00
Second Quarter 2010 1J<Th 7.84E·16 7.13E-17 7E·18 lE-16 3.00E-14 2.61E+OO
Air Volume in mLs ~l6Ra l.OSE-15 3.68E-17 6E-18 lE-16 9.ooE·13 1.16E.()I
l.36E+11 ~loPb 4.40E-15 6.6SE-17 6E-17 2E·IS 6.ooE·13 733E.()1
+LLD's are from Reg.Guide 4.14
·Effluent Concentration from the NEW 10 CFR Part 20 •Appendix B-Table 2
Year for Natural Uranium
Year for Thorium-230
Week for Radium-226
Day for Lead-210
www.energylab.com
AUlyticalExcellence!'fJSZ
Helena,MT 877-472-0711 •Billings,MT 800-735-4489.Casper,WY 988·235·0515
Gillette,WY 866-686-7175.Rapid r '988-&72-1225·College Station,IX 888-690-2218
Client:
Project:
LablD:
Client Sample 10:
LABORATORY ANALYTICAL REPORT
Denison Mines USA Corp
2nd Quarter BHV Air
C10070338-004
BHV-5
Report Date:08/08/10
Collection Date:07/05/10
DateReceived:07/09/10
Matrix:Filter
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date /By
TRACE METALS
Uranium,Activity 589 pCi/Filter 0.2 SW6020 08/02/1021 :281 ts
RADIONUCLIOES -TOTAL
Lead 210 596 pCi/Filter E909.0M 07/21/1002:281 jgc
Lead 210 precision (±)9.0 pCi/Filter E909.0M 07121/1002:281 jgc
Lead 210 MOC 7.6 pCilFilter E909.0M 07121/1002:281 jgc
Radium 226 142 pCi/Filter E903.0 07126110 17:001 ep
Radium 226 precision (±)5.0 pCi/Filter E903.0 07126/10 17:001 ep
Radium 226 MOC 0.8 pCi/Filter E903.0 07126/10 17:001 ep
Thorium 230 106 pCi/Filter E907.0 07120/1014:371 dmf
Thorium 230 precision (±)9.7 pCi/Filter E907.0 07120/1014:371 dmf
Thorium 230 MDC 0.97 pCi/Filter E907.0 07120/1014:371 dmf
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
MOC -Minimum detectable concentration
MCL -Maximum contaminant level.
NO -Not detected at the reporting limit.
Helen.,.I71-41Z-Gl11 •Bil,}••"135-4411 .Cllpll'.WYI~235-8515
GIIlettI,~.......·1115 •Rapid City,SD ....112-1225 •CoIl...Stltlon,IX111-II1-2211
HIGH VOLUMEAIRSAMPLING REPORT
CLIENT:Denison Mines USACorp
REPORT DATE:August8,2010
PROJECT:2ndQuarterBHV Air
SAMPLE ID:BHV-6
QuarterJDate Sampled Concentration Counting L.L.D.+EmuentCone:."%Emuent
Air Volume Radionuc:lide pCilmL Precision MDC"CilmL pCilmL pCilmL Concentration"CilmL
Cl0040255..()05 ....U 9.63E-15 N/A N/A IE-16 9.00E-14 1.07E+OI
First Quarter20I0 ~JOorh 1.82E-16 2.26E-17 4E-18 lE-16 3.00E-14 6.07E..()I
Air Volume in mLs ::!J>Ra 2.06E-16 7.14E-18 2E-18 IE-16 9.00E-13 2.29E"()2
1.36E+11 :IOPb 1.37E-14 1.03E-16 5E-17 2E-15 6.00E-13 2.29E+OO
QuarterJDateSampled Concentration Counting L.L.D:Emuent Cone:."%EmuentRadionudldePrecisionMOC"CilmLAirVolumepCilmLpCilmL pCilmL pCilmL Concentration
C IOO70338..()05 ....U 3.62E-15 N/A N/A IE-16 9.00E-14 4.02E+OO
SecondQuarter20I0 ~JOorh 3.94E-16 3.84E-17 5E-18 IE-16 3.00E-14 I.3IE+OO
Air Volume in mLs ::!J>Ra 4.89E-16 2.4IE-17 5E-18 IE-16 9.00E-13 5.43E-02
1.35E+11 :IOPb 4.30E-15 6.60E-17 6E-17 2E-15 6.00E-13 7.17E-Ol
+LLD's are from Reg.Guide 4.14
'"EfiluentConcenltauon from the NEW 10 CFR Part 20 -Appendix B -Table 2
Yearfor Natural Uranium
Yearfor Thorium-230
Week for Radium-226
Day for Lead-210
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Analytical Exc~lIenc~r
Helena,MT 877-472-D711 •Billings,MT 8DO-735-4489 •Casper,WY 888-235-0515
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Project:
Lab 10:
Client Sample 10:
LABORATORY ANALYTICAL REPORT
Denison Mines USA Corp
2nd Quarter BHV Air
C10070338-005
BHV-6
ReportDate:08/08/10
Collection Date:07/05/10
DateReceived:07/09/10
Matrix:Filter
MCV
Analyses Result Units Qualifiers RL QCL Method Analysis Date I By
TRACE METALS
Uranium,Activity 490 pCi/Filter 0.2 SW6020 08/02/10 21 :33 I ts
RADIONUCLIDES -TOTAL
lead 210 583 pCilFilter E909.0M 07121/1004:30 I jgc
lead 210 precision (±)8.9 pCilFilter E909.0M 07121/1004:30 I jgc
lead 210 MOC 7.6 pCi/Filter E909.0M 0712111004:30 I jgc
Radium 226 66.2 pCilFilter E903.0 07126/10 17:00 I ep
Radium 226 precision (±)3.3 pCilFilter E903.0 07126/10 17:00 I ep
Radium 226 MOC 0.7 pCi/Filter E903.0 0712611017:00 I ep
Thorium 230 53 pCi/Filter E907.0 07120/10 14:37I dmf
Thorium 230 precision (±)5.2 pCi/Filter E907.0 07120/10 14:37/dmf
Thorium 230 MOC 0.72 pCi/Filter E907.0 07120/1014:37 I dmf
Report
Definitions:
Rl -Analyte reporting limit.
QCl-Quality control limit.
MDC -Minimum detectable concentration
MCl-Maximum contaminant level.
NO -Not detected at the reporting limit.
Helen.,lIT 117-412.0711 •Bi~2lIT 100-13$-4481 •Cuper,W'(H8-235-0515
GIllIIta,W'f .1..1..-J115 R.pld City,SD 11..112-1225 a Col....St.t1on,lX811-&1..2211
HIGH VOLUME AIRSAMPLING REPORT
CLIENT:Denison Mines USA Corp
REPORTDATE:August8,2010
PROJECT:2ndQuarter BHY Air
SAMPLEID:Blank
QuarterlDate Sampled Concentration Counting L.L.D.+EmuentCone.·%Emuent
Air Volume Radionuellde IICilmL Precision MDCIiCi/mL IICilmL IICilmL Concentration)lCilmL
Cl0040255·006 ...,u 1.67E·17 N/A N/A IE-16 9.00E-14 1.86E.Q2
First Quarter 2010 ~h -3.03E-18 3.83E-18 5E-18 IE-16 3.00E·14 •1.01 E·02
Air Volume in mls ~6Ra 1.48E·18 1.43E-18 2E-18 IE·16 9.00E·13 1.64E.Q4
1.36E+ll !IDpb 3.50E-17 3.18E-17 5E-17 2E-15 6.00E·13 5.83E-03
Note'ThIS sample uses 136000 000 L orair volume ror compansonpurposes, ,
QuarterlDateSampled Concentration Counting L.L.D.+Emuent Cone.·%Emuent
AirVolume Radionuclide
IICilmL Precision MDCIiCilmL )lCVmL IICilmL Concentration)lCilmL
C10070338-006 -U 2.71E·17 N/A N/A IE-16 9.00E·14 3.02E-Q2
Second Quarter2010 !JO.rh -2.63E-19 4.5IE-18 6E-18 IE-16 3.00E-14 -8.75E-04
Air Volume in mLs ':-~6Ra 9.74E·18 4.43E·18 5E-18 IE·16 9.00E-13 l.08E-03
1.36E+II !tOPb 7.47E·18 3.35E·17 6E-17 2E-15 6.00E-13 l.24E-03
Note:Thissampleuses 136,000,000 L orair volume ror comparison purposes.
+LLO's are from Reg.Guide 4.14
·EffluentConcentration from the NEW 10 CFR Part20 -Appendix B -Table 2
Year for Natural Uranium
Year for Thorium-230
Week for Radium-226
Oay for Lead-210
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Helena,MT 877-472-0711.Billings,MT 800-735-4489.Casper,WY 888-235-0515
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Client:
Project:
Lab 10:
Client Sample 10:
LABORATORY ANALYTICAL REPORT
Denison Mines USA Corp
2nd Quarter BHV Air
C10070338-006
Blank
Report Date:08/08/10
Collection Date:07/05110
OateReceived:07/0911 0
Matrix:Filter
Analyses Result Units Qualifiers RL
MCU
QCL Method Analysis Date 1By
TRACE METALS
Uranium,Activity
RADIONUCllOES -TOTAL
lead 210
Lead 210 precision (:t)
Lead 210 MOC
Radium 226
Radium 226 precision (:t)
Radium 226 MOC
Thorium 230
Thorium 230 precision (:t)
Thorium 230 MOC
3.7
1.0
4.6
7.6
1.3
0.6
0.7
-0.04
0.61
0.79
pCilFiJ er
pCVFilter
pCVFilter
pCVFilter
pCVFilter
pCilFilter
pCilFilter
pCilFilter
pCi/Filter
pCi/Filter
U
U
0.2 SW6020 08102/1021 :38 /Is
E909.0M 07121/1006:321 jgc
E909.0M 0712111006:321 jgc
E909.0M 07121110 06:321 jgc
E903.0 07126/1017:001 ep
E903.0 07/26/1017:001 ep
E903.0 07/26/1017:001 ep
E907.0 07120110 14:371 dmf
E907.0 07120/10 14:371 dmf
E907.0 07120110 14:371 dmf
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
MOC -Minimum detectable concentration
MCL -Maximum contaminant level.
NO -Not detected at the reporting limit.
U -Not detected at minimum detectable concentration
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Helena,MT 877-472-0711.Billings.MT 800-735-4489·Casper,WY 888-235-0515
Gillette,WY 866-686-7175.Rapid C 888-672-1225.College Station,TX 888-690-2218
QA/QC Summary Report
Client:Denison Mines USA Corp
Project:2nd Quarter SHV Air
Report Date:08/08/10
Work Order:C10070338
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimlt Qual
Method:E90J.O
Sample 10:C10060946-o01AMS
Radium 226
Sample Matrix Spike
52 pCi/g-dry
Run:G542M_100716A
98 70 130
Batch:R135391
07126/1017:00
07126/10 17:00Run:G542M_100716A
70 130111
Sample 10:C10060946-001AMSO Sample Matrix Spike Duplicate Run:G542M_100716A 07126/1017:00
Radium 226 55 pCi/g-dry 149 70 130 7 14.6 S
-Sample response is much largerthan spike amount,therefore small variances in the sample adversely affected the recovery.The lCSand the RPD of the MSIMSD pair
meets acceptance criteria;this batch is approved.
Sample 10:LCS-26647 Laboratory Control Sample
Radium 226 16.6 pCi/Filter
Sample 10:MB-26647
Radium 226
Radium 226 precision (±)
Radium 226 MOe
3 Method Blank
-0.1 pCi/Filter
0.1 pCilFilter
0.3 pCilFilter
Run:G542M_100716A 07126/1017;00
U
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
U -Not detected at minimum detectable concentration
NO -Not detected at the reporting limit.
S -Spike recovery outside of advisory limits.
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Helena,MT 877-472-0711 •Billings,MT 800-735-4489 •Casper,WY 888-235-0515
Gillette,WY 866-686-7175 •Rapid C )888-672-1225 •College Station,TX 888-690-2218
QA/QC Summary Report
Client:Denison Mines USA Corp
Project:2nd Quarter BHV Air
ReportDate:08/08/10
Work Order:C10070338
Analyte Count Result Units RL %REC LowLimit High Limit RPO RPDLimit Qual
Method:E907.0
Sample 10:C10070338-006AMS
Thorium 230
Sample 10:C10070338-006AMSO
Thorium 230
Sample 10:LCS·26647
Thorium 230
Sample 10:MB-26647
Thorium 230
Thorium 230 precision (±)
Thorium 230 MDC
Sample Matrix Spike
48.5 pCilFilter
Sample Matrix Spike Duplicate
54.0 pCilFilter
Laboratory Control Sample
5.05 pCilFilter
3 Method Blank
-0.1 pCilFilter
0.1 pCilFilter
0.2 pCi/Filter
Run:EGG-ORTEC_100716A
103 70 130
Run:EGG-ORTEC_100716A
111 70 130 11
Run:EGG-ORTEC_100716A
105 70 130
Run:EGG-ORTEC_100716A
Batch:26647
07/20/10 14:37
07/20/1014:37
35.1
07/20/1014:37
07120/1014:37
U
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
NO -Not detected at the reporting limit.
U -Not detected at minimum detectable concentration
~..-
~
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A"alytical fICelle"ce r
Helena,MT 871-472-0711 •Billings,MT 800-735-4489.Casper,WY 888-235-0515
r_""'--G_iIIe_tt...;e,_WY_86_6_-6_8_6-7175.Rapid r }888-672-1225.College Station,TX 888-690-2218
QA/QC Summary Report
Client:Denison Mines USA Corp
Project:2nd Quarter SHV Air
ReportDate:08/08/10
Work Order:C10070338
I Analyte Count Result Units RL %REC Low Limit High limit RPO RPOLimit Qual
Method:E909.0M
Sample 10:MB-26647
Lead 210
Lead 210 precision (±)
Lead 210 MOC
Sample 10:TAP WATER-MS
Lead 210
Sample 10:TAP WATER-MSD
Lead 210
3 Method Blank
2 pCilFilter
3 pCilFilter
5 pCilFilter
Sample Matrix Spike
370 pCilL
Sample Matrix Spike Duplicate
390 pCi/L
Run:BECKMAN 6100TA_100715A
Run:BECKMAN 6100TA_100715A
101 70 130
Run:BECKMAN 6100TA_100715A
100 ro 1~~5
Batch:R135187
07120/1016:21
U
07121/1010:35
07121/1012:36
16.9
Sample 10:LCS-26647 Laboratory Control Sample Run:BECKMAN 6100TA_100715A
Lead 210 48.4 pCilFilter 26 70 130
•LCS response is outside ofthe acceptance range for this analysis.Since the MB,MS,and MSD are acceptable the batch is approved.
07/2111014:38
S
Qualifiers:
RL -Analyte reporting limit
MDC -Minimum detectable concentration
U -Not detected at minimum detectable concentration
NO -Not detected at the reporting limit
S •Spike recovery outside of advisory limits.
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Helena,MT 877-472-0711 •Billings,MT 800-735-4489.Casper,WY 888-235·0515
Gillette,WY 866-686-1175 •Rapid C 888-672-1225 •College Station,TX 888-690-2218
QA/QC Summary Report
Client:Denison Mines USA Corp Report Date:08/08/10
Project:2nd Quarter SHV Air Work Order:C10070338
Analyte Count Result Units RL "IeREC Low Limit High Limit RPO RPOUmit Qual
Method:SW6020 Batch:26647
Sample10:MB-26647 Method Blank Run:ICPMS2-C_100802A 08/0211 0 20:31
Uranium 0.03 mglfilter 6E-05
Sample 10:LCS2·26647 Laboratory Control Sample Run:ICPMS2-C_100802A 08/02/1020:57
Uranium 0.0857 mglfilter 0.00030 86 85 115
Sample10:C10070338-006AMS Sample Matrix Spike Run:ICPMS2-C_100S02A OS/02/1022:05
Uranium 0.0559 mglfilter 0.00030 101 75 125
Sample10:C10070338-006AMSD Sample Matrix Spike Duplicate Run:ICPMS2-C_100802A OS/02l10 22:10
Uranium 0.0552 mglfilter 0.00030 99 75 125 1.3 20
Qualifiers:
RL -Analyte reporting limit.
MOC -Minimum detectable concentration
NO -Not detected at the reporting limit.
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Helena,MT 811-412-0711 •.Billings.MT 800-735-4489 •Casper.WY 888-235-0515
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Energy Laboratories Inc
Workorder Receipt Checklist
Denison Mines USA Corp
Login completed by:Edith McPike
Reviewed by:
Reviewed Date:
1I~lllllillllll~ll"m~111 ~III'
C10070338
Date Received:7/9/2010
Received by:em
Carrier name:2Day
Shipping container/cooler ingood condition?Yes Ii:]
Custodyseals intact on shipping container/cooler?Yes Ii:]
Custody seals intact on sample bottles?Yes 0
Chain ofcustody present?Yes Ii:]
Chain ofcustody signed when relinquished and received?Yes 0
Chain of custody agrees with sample labels?Yes Ii:]
Samples in propercontainer/bottle?Yes Ii:]
Samplecontainers intact?Yes Ii:]
Sufficient samplevolume for indicated test?Yes Ii:]
All samples received within holding time?Yes iii
ConlainerlTemp Blanktemperature:~C NA
Water -VOA vials have zero headspace?Yes 0
Water-pH acceptable upon receipt?Yes 0
Contact and CorrectiveAction Comments:
None
N°D
N°D
NoD
No 0
No 0
No 0
N°D
N°D
NoD
NoD
No 0
No 0
Not Present 0
Not Present 0
Not Present iii
No VOA vials submitted iii
Not Applicable iii
pageLJ_'Chain of Custody and Analytical Request Record/6BiIi7
LABORATORIES PLEASE PRINT (Provide as much information as Dossible.)_
Company Name:proje~""PWS,Permit,Etc.Sample Origin EPA/State Compliance:_n~I~",J 1V1:.~<.JZ (.lIA~A'H!!4 611-v'J4.~tl State:IA""Yes if No 0 +
Report M~~rre~01 Contact Name:Phone/Fax:Email:Sampler:(Please Print)~~~Ji=u~lt4fS'1/J2~N 1!+/~t'bTYZeZ!J4~jJ~~
Invoice Address:I .Invoice Contact &Phone:Purchase Order:Quottl/Bott~Order:
"--'\.A ....J SA """""--
Special ReporUFormats::5:&Jm&l1'W@O@ rnl§@01J~rn@)..Contact ELI prior to .Shl~:vl
o ....RUSH sample submittal ---=-"lb""!---:::.::-:-:------t~0 If}~~for charges and Cooler 10(s):~co;g 01 $Cl ~R scheduling -See /J
O DW 0 EDD/EDT .~;;;~~~W!::-Instruction Page (I/II;;J~
(Electronic Data)0::>-If}0>:r:'0 R IT.CO:>'0 CIl ....C C t ecel~t empPOTWIWWTPFormat:~«~I~I~~e u ommen s:M /A 0DState'D LEVEL IV ....Qj 2 Co 'oc I-ro P C•llS 0..<0._I-EDOther:0 NELAC §~I~~r-......s:..~«~5 On Ice:y C
z a.«I g>o \'.......N ........,;W "E Custody Seal!ij >1 ~tv'~~W ~OnBottle '!'g)
CJ)~e-...),,(j)f6 OnCooler CJ.
1---------------.--------,----1--------.4 <:..t"'C!en H Intact y
SAMPLE IDENTIFICATION Collection Collection MATRIX 1"""""::"1::~I~Signature .(Name,Location,lnterval,etc.)Date Time -.::),Match N
Ew-1 1./,5'10 1tJtJ..13 ../..IX)(~X I~
2RIfV-2 1 1/3~t ~)(X X I~
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8 ~~/111176:~
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10 <:::::!....~Custody ~ishedby Wint)~elTime:IIfO LSign~ure:I /./Received by (print):DatelTime:Signature:
l/uA l'iJ I....~.7.//)If,~J/,/f:~~~r~e ReJinqfJished by (pnnt):DatelTime:I'7natuT '---Received by (print):DatelTime:Signature:
.V r<ecelvea DY LaD02lf"~/1,ualeillme:///J /_/1 .3'tgnalure:Signed Samole DisDosal:Return to Client:LfbDisposal:\....AJ r Ie p/rr //'~///J "7 1..J..1
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(lPeriod:April 5,2010 through July 5,2010 (2nd Quarter 2010)Page 1
SIN-fon slteam %100.()%BHV·l .ill Volume:4.82E+06
Week Filter Start Stop Stop Start Total Tolal Loading,Per Cent
#Number Dale Date Gross Tare Net Time Time Time Liters mglm3 On Stream SCFM
I 8154715 5-Apr-10 12-Apr-1O 4.7746 4.5032 0.2714 20121.4 1995\.4 10203.0 10,545.463 0.0257 101.2%36.5
2 8154709 12-Apr-1O 19-Apr-1O 4.8974 4.5074 0.3900 20293.1 20121.4 10299.0 10.790.503 0.0361 102.2%37.0
3 8154703 19-Apr-10 26-Apr-1O 4.7332 4.4874 0.2458 20459.4 20293.1 9978.0 10.454.183 0.0235 99.0%37.0
4 8155097 26-Apr-1O 5-May-10 4.9691 4.5292 0.4399 20671.3 20459.4 12718.2 13.325.155 0.0330 98.1%37.0
5 8155092 05-May-10 100May-1O 4.8287 4.5208 0.3079 20795.4 20671.3 7444.8 7.800.091 0.0395 103.4%37.0
6 8155085 IO-May-IO I7-May-1O 4.7540 4.5214 0.2326 20958,4 20795.4 9777.6 10.244.220 0.0227 97,0%37.0
7 8155079 17-May-10 24-May-l0 5,4734 4.5205 0.9529 21132.5 20958.4 10447.2 10.916.192 0.0873 103.6%36.9
8 8155073 24-May-10 31-May-1O 4.8842 4.5127 0.3715 21323.1 21132.5 11435.4 11.948.754 0.0311 113.4%36.9
9 8155067 3J-May-10 7-Jun-10 4.6824 4.5312 0.1512 21469.5 21323.1 8782.2 9.176.447 0.0165 87.1%36.9
10 8155061 07·Jun-10 I4-Jun-1O 4.8084 4.5635 0.2449 21636.1 21469.5 9999.0 10.362,930 0.0236 99.2%36.6
11 8155055 14-Jun-10 21-Jun-1O 4.8062 4.5462 0.2600 21802.5 21636.1 9981.0 10.287.748 0.0253 99.0%36.4
12 8155049 21·Jun-10 28-Jun'lO 4.7518 4.5105 0.2413 21970.9 21802.5 10108.2 10.418.858 0.0232 100.3%36.4
13 8155043 28·Jun-10 5-Jul-1O 4.6389 4.4615 0.1774 22135.0 21970.9 9842.4 10,144,889 0.0175 97.6%36.4
To1315 91 2184.0 4.8463308 4.5165769 0,3298 131016 136.415,432 0.0312 100.1%36.8
BHV-2 on stream %100.0%BHV-2 Total Volume:4.82E+06
Week Filter Start Stop Slap Start Total Total Loading,PerCent
#Number Date Date Gross Tare Net Time Time Time Liters mg/m3 On Stream SCFM
1 8154714 05-Apr-l0 12-Apr-10 4.8713 4.4746 0,3967 30310.5 30140.6 10195.2 10,537,401 0,0376 101.1%36.5
2 8154708 12-Apr-10 19-Apr-10 5.0556 4.5019 0,5537 30481.8 30310.5 10275.0 10.765,357 0,0514 101.9%37.0
3 8154702 19-Apr-l0 26-Apr-l0 4.8131 4,5002 0,3129 30648,0 30481,8 9975.0 10,451,040 0,0299 99.0%37,0
4 8155096 26-Apr-l0 05-May-l0 4,9748 4.5284 0.4464 30860.1 30648.0 12722.4 13,329,555 0.0335 98.2%37.0
5 8155091 05-May-l0 10-MaY-l0 4.9488 4,5172 0,4316 30984.5 30860.1 7465.8 7,822,093 0.0552 103.7%37.0
6 8155084 10-MaY-l0 17-May-l0 4.7773 4.5319 0.2454 31147,4 30984.5 9776.4 10.242.962 0,0240 97.0%37.0
7 8155078 17-May-l0 24-May-l0 5.5284 4.5061 1.0223 31321.5 31147.4 10446.6 10.915.565 0.0937 103.6%36.9
8 8155072 24-May·l0 31-MaY-l0 5.1894 4,5150 0,6744 31511.6 31321.5 11401.8 11.913,646 0.0566 113.1%36,9
9 8155066 31-May-l0 07-Jun-l0 4,7504 4.5137 0.2367 31658.1 31511.6 8790,0 9,184,598 0.0258 87.2%36.9
10 8155060 07.Jun-l0 14-Jun-l0 4.9865 4.5292 0.4573 31824.7 31658,1 9995.4 10,359,199 0.0441 99.2%36.6
11 8155054 14-Jun-l0 21-Jun-l0 5.0013 4,5362 0.4651 31991.4 31824.7 10006.8 10,314,341 0.0451 99.3%36.4
12 8155048 21-Jun-l0 28-Jun-l0 4,8900 4.4641 0.4259 32160.0 31991.4 10113.0 10,423,805 0.0409 100.3%36.4
13 8155042 28-Jun-l0 05-Jul-l0 4.8446 4.4967 0,3479 32324.2 32160,0 9850.2 10,152,928 0.0343 97.7%36.4
Totals 91 2184.0 4,97165 4.50886 0.4628 131013,6 136,412,491 0,0440 100.1%36.8
BHV-4 on stream%99.3%BHV·4 Total Volume:4.78E+06
Week Filter Start Stop Stop Start Total Total Loading,PerCent
#Number Date Date Gross Tare Net Time Time Time Liters mg/m3 On Stream SCFM
1 8154713 05·Apr-10 12-Apr-l0 4.7241 4.4932 0.2309 5982.7 5814.4 10094.4 10,433,218 0,0221 100.1%36.5
2 8154707 12-Apr-10 19-Apr-l0 4.8091 4.5000 0.3091 6155.0 5982.7 10338.6 10,831,993 0.0285 102.6%37.0
3 8154701 19-Apr-l0 26-Apr-l0 4.8567 4.5058 0,3509 6321.1 6155.0 9968,4 10,444,125 0.0336 98.9%37.0
4 8155095 26-Apr-10 05-May-l0 5,0976 4.5144 0.5832 6532.4 6321.1 12677,4 13,282,408 0.0439 97.8%37.0
5 8155090 05-May-l0 1O-May-l0 4.9670 4.5348 0.4322 6657.6 6532.4 7512.6 7,871,126 0.0549 104.3%37.0
6 8155083 10·May·l0 17·May-10 4.7900 4,5410 0.2490 6821.2 6657.6 9814,2 10,282,566 0.0242 97.40/0 37.0
7 8155077 H-May-l0 24·May-10 5.7193 4.5205 1.1988 6994.6 6821.2 10404,0 10,871,053 0.1103 103.2%36.9
8 8155071 24-May·l0 31-May-l0 4.9876 4.5309 0.4567 7185.5 6994.6 11452.2 11,966,308 0,0382 113.6%36.9
9 8155065 31-May·l0 07-Jun-l0 4.6787 4.5308 0.1479 7331.2 7185.5 8740,8 9,133,189 0,0162 86,7%36.9
10 8155059 07-Jun-l0 14-Jun-l0 4.7889 4.5331 0.2558 7497.8 7331.2 9997.2 10,361,064 0,0247 99.2%36.6
11 8155053 14.Jun-l0 21-Jun-l0 4.8454 4.5160 0.3294 7664.7 7497.8 10014.6 10,322,381 0,0319 99.4%36.4
12 8155047 21-Jun-10 28-Jun-l0 4.6316 4.4352 0.1964 7833.1 7664.7 10107.6 10,418,239 0.0189 100.3%36.4
13 8155041 28·Jun-l0 05-Jul-l0 4.5659 4.4760 0.0899 7982,8 7833.1 8979.6 9,255,572 0.0097 89.1%36.4
Totals 91 2184.0 4.88168 4.51013 0.3716 130101.6 135,473,243 0,0352 99.4%36.8
SHV-5 on stream %99.3%BHV-5 Total Volume:4.79E+06
Week Filler Start Stop Stop Start Total Total Loading,PerCent
#Number Date Date Gross Tare Net Time Time Time Liters mofm3 On Stream SCFM
1 8154712 05-Apr-l0 12-Apr-l0 4.8754 4.5021 0.3733 30279.5 30111.0 10111.2 10,450,582 0.0357 100.3%36.5
2 8154706 12-Apr·l0 19-Apr-l0 4.9273 4.4817 0.4456 30452.2 30279.5 10362.6 10,857,138 0.0410 102.8''10 37.0
3 8155100 19-Apr-l0 26·Apr·l0 4.8311 4.5319 0.2992 30618,4 30452.2 9973.8 10,449,783 0.0286 98.9%37.0
4 8155094 26-Apr-l0 05-MaY-l0 5.0922 4,5275 0.5647 30829,8 30618.4 12679,8 13,284,922 0.0425 97,8%37,0
5 8155089 05-May-10 1O·May-l0 4,8781 4.5276 0.3505 30954,5 30829.3 7510.8 7,869,240 0.0445 104.3%37.0
6 8155082 10·May-l0 17-MaY-l0 4.8515 4.5269 0.3246 31118.0 30954.5 9814.8 10,283,195 0.0316 97,4%37.0
7 8155076 17-May-l0 24-MaY-l0 5.7346 4.5310 1.2036 31291.5 31118.0 10405.8 10,872,934 0,1107 103.2%36.9
8 8155070 24-May-l0 31-MaY-l0 5.0523 4.5213 0.5310 31482.9 31291.5 11483,4 11,998,909 0.0443 113.9%36.9
9 8155064 31-MaY-l0 07-Jun-l0 4,7405 4.5285 0.2120 31628.5 31482.9 8740.2 9,132,562 0.0232 86.7%36.9
10 8155058 07.Jun-l0 14.Jun-l0 4.8242 4.5423 0.2819 31795.2 31628.5 9997.8 10,361,686 0.0272 99,2%36.6
11 8155052 14-Jun-l0 21-Jun-l0 4.8071 4,5188 0.2883 31961.5 31795.2 9979.2 10,285,893 0.0280 99.0%36,4
12 8155046 21-Jun-l0 28-Jun-10 4,7877 4.4732 0.3145 32130.0 31961.5 10112.4 10,423,187 0.0302 100.3%36.4
13 8155040 28.Jun-10 05·Jul-10 4.6522 4.4618 0.1904 32279.5 32130.0 8968.8 9,244,440 0.0206 89,0%36.4
Totals 91 2184.0 4.92725 4.51343 0.4138 7797800 130140,6 135,514,471 0.0391 99,5%36,8
r"P~rlo'd:r AprilS,2010 through July 5,2<'{2nd Quarter 2010)o Page 2
BHV·6 onstream %99.3%BHV·6 Total Volume:4.78E+06
Week Filter Start Stop Stop Start Total Total Loading,Per Cent
#Number Date Date Gross Tare Net Time Time Time Liters mg!m3 On Stream SCFM
1 8154711 05·Apr·10 12·Apr·l0 4.8079 4.4871 0.3208 7331.9 7163.5 10105.2 10,444,380 0.0307 100.3%36.5
2 8154705 12-Apr-l0 19-Apr-l0 4.8486 4.4930 0.3556 7504.2 7331.9 10340.4 10.833,878 0.0328 102.6%37.0
3 8155099 19-Apr-l0 26-Apr-l0 4.7658 4.5004 0.2654 7670.6 7504.2 9982.8 10.459,213 0.0254 99.0%37.0
4 8155093 26·Apr·l0 0S-May-l0 5.0063 4.5554 0.4509 7881.4 7670.6 12646.2 13.249,719 0.0340 97.6%37.0
5 8155088 0S-May-l0 10·May·10 4.8114 4.4950 0.3164 8006.8 7881.4 7527.0 7.886,214 0.0401 104.5%37.0
6 8155081 lO-May-l0 17·May-l0 4.7545 4.5147 0.2398 8170.4 8006.8 9814.8 10,283,195 0.0233 97.4%37.0
7 8155075 17-May-l0 24-May-l0 5.4705 4.5007 0.9698 8343.8 8170.4 10404.6 10.871,680 0.0892 103.2%36.9
8 8155069 24·May-10 31·May·l0 4.8936 4.5044 0.3892 8534.5 8343.8 11442.6 11,956,277 0.0326 113.5%36.9
9 8155063 31·May-l0 07-Jun-l0 4.7083 4.5359 0.1724 8680.6 8534.5 8766.6 9.160,147 0.0188 87.0%36.9
10 8155057 07-Jun-l0 14-Jun-l0 4.7908 4.5293 0.2615 8847.2 868Q.6 9997.2 10,361,064 0.0252 99.2"1.36.6
11 8155051 14-Jun-l0 21·Jun-l0 4.8387 4.5333 0.3054 9013.8 8847.2 9991.8 10,298,880 0.0297 99.1%36.4
12 8155045 21-Jun-l0 28-Jun-l0 4.7833 4.4903 0.2930 9182.3 9013.8 10110.0 10,420.713 0.0281 100.3%36.4
13 8155039 28-Jun-l0 05-Jul-10 4.6408 4.4793 0.1615 9332.0 9182.3 8981.4 9.257,427 0.0174 89.1%36.4
Totals 91 2184.0 4.85542 4.50914 0.3463 130110.6 135,482,788 0.0329 99.4%36.8
ALL SHV on stream %99.6%
Week
#Blanks
Start
Date
Stop
Date Net
1 8154710 0S-Apr-l0 12-Apr-l0 4.4822
2 8154704 12-Apr-l0 19-Apr-l0 4.5062
3 8155098 19-Apr-l0 26-Apr-l0 4.5189
4 8155087 26-Apr-l0 05-May-l0 4.5496
S 8155086 OS-May-l0 1O-May-l 0 4.5377
6 8155080 1O-May-l 0 17-May-l0 4.5307
7 8155074 17-May-l0 24-May-l0 4.5225
8 8155068 24-May-l0 31-May-l0 4.5319
9 8155062 31·May-l0 07·Jun-l0 4.5170
10 8155056 07-Jun-l0 14·Jun-l0 4.5106
11 8155050 14-Jun-l0 21·Jun-l0 4.5144
12 8155044 21-Jun-l0 28-Jun-10 4.4413
13 8155033 28-Jun-10 05·Jul·l0 4.5182
Totals 91 2184.0 4.5139

ATTACHMENT D

1.0000
Air Station Particulate Loading (mg/m3)
0.1000
0.0100
0.0010
0.0001
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
010
010
010
010
010
010
010
010
010
010
010
010
010
010
1/
5
/
2
0
1/
1
9
/
2
0
2/
2
/
2
0
2/
1
6
/
2
0
3/
2
/
2
0
3/
1
6
/
2
0
3/
3
0
/
2
0
4/
1
3
/
2
0
4/
2
7
/
2
0
5/
1
1
/
2
0
5/
2
5
/
2
0
6/
8
/
2
0
6/
2
2
/
2
0
7/
6
/
2
0
7/
2
0
/
2
0
8/
3
/
2
0
8/
1
7
/
2
0
8/
3
1
/
2
0
9/
1
4
/
2
0
9/
2
8
/
2
0
10
/
1
2
/
2
0
10
/
2
6
/
2
0
11
/
9
/
2
0
11
/
2
3
/
2
0
12
/
7
/
2
0
12
/
2
1
/
2
0
1/
4
/
2
0
1/
1
8
/
2
0
2/
1
/
2
0
2/
1
5
/
2
0
3/
1
/
2
0
3/
1
5
/
2
0
3/
2
9
/
2
0
4/
1
2
/
2
0
4/
2
6
/
2
0
5/
1
0
/
2
0
5/
2
4
/
2
0
6/
7
/
2
0
6/
2
1
/
2
0
7/
5
/
2
0
BHV‐1 BHV‐2 BHV‐4 BHV‐5 BHV‐6
1.0000
BHV‐1 Particulate Loading (mg/m3)
0.1000
0 01000.0100
0.0010
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
010
010
010
010
010
010
010
010
010
010
010
010
010
010
1/
5
/
2
0
1/
1
9
/
2
0
2/
2
/
2
0
2/
1
6
/
2
0
3/
2
/
2
0
3/
1
6
/
2
0
3/
3
0
/
2
0
4/
1
3
/
2
0
4/
2
7
/
2
0
5/
1
1
/
2
0
5/
2
5
/
2
0
6/
8
/
2
0
6/
2
2
/
2
0
7/
6
/
2
0
7/
2
0
/
2
0
8/
3
/
2
0
8/
1
7
/
2
0
8/
3
1
/
2
0
9/
1
4
/
2
0
9/
2
8
/
2
0
10
/
1
2
/
2
0
10
/
2
6
/
2
0
11
/
9
/
2
0
11
/
2
3
/
2
0
12
/
7
/
2
0
12
/
2
1
/
2
0
1/
4
/
2
0
1/
1
8
/
2
0
2/
1
/
2
0
2/
1
5
/
2
0
3/
1
/
2
0
3/
1
5
/
2
0
3/
2
9
/
2
0
4/
1
2
/
2
0
4/
2
6
/
2
0
5/
1
0
/
2
0
5/
2
4
/
2
0
6/
7
/
2
0
6/
2
1
/
2
0
7/
5
/
2
0
BHV‐1
1.0000
BHV‐2 Particulate Loading (mg/m3)
0.1000
0 01000.0100
0.0010
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
010
010
010
010
010
010
010
010
010
010
010
010
010
010
1/
5
/
2
0
1/
1
9
/
2
0
2/
2
/
2
0
2/
1
6
/
2
0
3/
2
/
2
0
3/
1
6
/
2
0
3/
3
0
/
2
0
4/
1
3
/
2
0
4/
2
7
/
2
0
5/
1
1
/
2
0
5/
2
5
/
2
0
6/
8
/
2
0
6/
2
2
/
2
0
7/
6
/
2
0
7/
2
0
/
2
0
8/
3
/
2
0
8/
1
7
/
2
0
8/
3
1
/
2
0
9/
1
4
/
2
0
9/
2
8
/
2
0
10
/
1
2
/
2
0
10
/
2
6
/
2
0
11
/
9
/
2
0
11
/
2
3
/
2
0
12
/
7
/
2
0
12
/
2
1
/
2
0
1/
4
/
2
0
1/
1
8
/
2
0
2/
1
/
2
0
2/
1
5
/
2
0
3/
1
/
2
0
3/
1
5
/
2
0
3/
2
9
/
2
0
4/
1
2
/
2
0
4/
2
6
/
2
0
5/
1
0
/
2
0
5/
2
4
/
2
0
6/
7
/
2
0
6/
2
1
/
2
0
7/
5
/
2
0
BHV‐2
1.0000
BHV‐4 Particulate Loading (mg/m3)
0.1000
0.0100
0.0010
0.0001
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
010
010
010
010
010
010
010
010
010
010
010
010
010
010
1/
5
/
2
0
1/
1
9
/
2
0
2/
2
/
2
0
2/
1
6
/
2
0
3/
2
/
2
0
3/
1
6
/
2
0
3/
3
0
/
2
0
4/
1
3
/
2
0
4/
2
7
/
2
0
5/
1
1
/
2
0
5/
2
5
/
2
0
6/
8
/
2
0
6/
2
2
/
2
0
7/
6
/
2
0
7/
2
0
/
2
0
8/
3
/
2
0
8/
1
7
/
2
0
8/
3
1
/
2
0
9/
1
4
/
2
0
9/
2
8
/
2
0
10
/
1
2
/
2
0
10
/
2
6
/
2
0
11
/
9
/
2
0
11
/
2
3
/
2
0
12
/
7
/
2
0
12
/
2
1
/
2
0
1/
4
/
2
0
1/
1
8
/
2
0
2/
1
/
2
0
2/
1
5
/
2
0
3/
1
/
2
0
3/
1
5
/
2
0
3/
2
9
/
2
0
4/
1
2
/
2
0
4/
2
6
/
2
0
5/
1
0
/
2
0
5/
2
4
/
2
0
6/
7
/
2
0
6/
2
1
/
2
0
7/
5
/
2
0
BHV‐4
1.0000
BHV‐5 Particulate Loading (mg/m3)
0.1000
0 01000.0100
0.0010
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
010
010
010
010
010
010
010
010
010
010
010
010
010
010
1/
5
/
2
0
1/
1
9
/
2
0
2/
2
/
2
0
2/
1
6
/
2
0
3/
2
/
2
0
3/
1
6
/
2
0
3/
3
0
/
2
0
4/
1
3
/
2
0
4/
2
7
/
2
0
5/
1
1
/
2
0
5/
2
5
/
2
0
6/
8
/
2
0
6/
2
2
/
2
0
7/
6
/
2
0
7/
2
0
/
2
0
8/
3
/
2
0
8/
1
7
/
2
0
8/
3
1
/
2
0
9/
1
4
/
2
0
9/
2
8
/
2
0
10
/
1
2
/
2
0
10
/
2
6
/
2
0
11
/
9
/
2
0
11
/
2
3
/
2
0
12
/
7
/
2
0
12
/
2
1
/
2
0
1/
4
/
2
0
1/
1
8
/
2
0
2/
1
/
2
0
2/
1
5
/
2
0
3/
1
/
2
0
3/
1
5
/
2
0
3/
2
9
/
2
0
4/
1
2
/
2
0
4/
2
6
/
2
0
5/
1
0
/
2
0
5/
2
4
/
2
0
6/
7
/
2
0
6/
2
1
/
2
0
7/
5
/
2
0
BHV‐5
1.0000
BHV‐6 Particulate Loading (mg/m3)
0.1000
0 01000.0100
0.0010
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
009
010
010
010
010
010
010
010
010
010
010
010
010
010
010
1/
5
/
2
0
1/
1
9
/
2
0
2/
2
/
2
0
2/
1
6
/
2
0
3/
2
/
2
0
3/
1
6
/
2
0
3/
3
0
/
2
0
4/
1
3
/
2
0
4/
2
7
/
2
0
5/
1
1
/
2
0
5/
2
5
/
2
0
6/
8
/
2
0
6/
2
2
/
2
0
7/
6
/
2
0
7/
2
0
/
2
0
8/
3
/
2
0
8/
1
7
/
2
0
8/
3
1
/
2
0
9/
1
4
/
2
0
9/
2
8
/
2
0
10
/
1
2
/
2
0
10
/
2
6
/
2
0
11
/
9
/
2
0
11
/
2
3
/
2
0
12
/
7
/
2
0
12
/
2
1
/
2
0
1/
4
/
2
0
1/
1
8
/
2
0
2/
1
/
2
0
2/
1
5
/
2
0
3/
1
/
2
0
3/
1
5
/
2
0
3/
2
9
/
2
0
4/
1
2
/
2
0
4/
2
6
/
2
0
5/
1
0
/
2
0
5/
2
4
/
2
0
6/
7
/
2
0
6/
2
1
/
2
0
7/
5
/
2
0
BHV‐6
Period:January 1,2010 through April 010 (1st Quarter 2010)
BHV-1 on stream %98.6%BHV.1 01 Volume:4.81E+06
Page 1
Week filler Start Stop Stop Start Total Total Loading,PerCent
#Number Date Date Gross Tare Net Time Time Time Liters molm3 On Stream SCfM
1 8154194 4-Jan-10 II-Jan-IO 4.6931 4.4912 0.1959 17941.0 11113.3 10063.2 10,400,910 0.0188 99.8%36.5
2 8154188 II-Jan-IO 18-Jan-IO 4.6601 4.5100 0.1501 18105.4 17941.0 9865.8 10,336,629 0.0145 91.9"A.31.0
3 8154182 18-Jan-10 25-Jan-IO 4.5058 4.4125 0.0333 18278.2 18105.4 10366.2 10,860,910 0.0031 102.8%31.0
4 8154776 25-Jan-10 I-Feb-1O 4.5724 4.5039 0.0685 18443.5 18218.2 9917.4 10,390,691 0.0066 98.4%31.0
5 8154770 Ol-feb-IO 8-Feb-1O 4.5419 4.4666 0.0813 18610.3 18443.5 10005.6 10,483,101 0.0078 99.3%31.0
6 8154764 08-feb-10 15-Feb-10 4.5239 4.4565 0.0614 I818 I.S 18610.3 10215.6 10,165,986 0.0063 101.9"A.37.0
1 8154758 15-feb-10 23-Feb-10 4.5752 4.4583 0.1169 18969.2 18181.5 11263.8 11,769,451 0.0099 97.8%36.9
8 8154752 22-feb-1O I-Mar-IO 4.5719 4.4931 0.0788 19117.1 18969.2 8871.6 9,269,861 0.0085 88.00/0 36.9
9 8154745 Ol-Mar-IO 8-Mar-10 4.6105 4.5100 0.1005 19284.3 19117.1 10030.2 10,480,472 0.0096 99.5%36.9
10 8154739 08-Mar-10 15-Mar-IO 4.5425 4.4832 0.0593 19448.9 19284.3 9876.0 10,235,453 0.0058 98.0%36.6
II 8154733 15-Mar-10 23-Mar-IO 4.5829 4.4770 0.1059 19620.5 19448.9 10298.4 10,614,903 0.0100 89.4%36.4
12 8154127 23-Mar-10 29-Mar-10 4.6189 4.4967 0.1222 19785.5 19620.5 9897.6 10,201,785 0.0120 114.6%36.4
13 8154121 29-Mar-1O 5-Apr-10 4.8693 4.5031 0.3662 19951.4 19185.5 9954.0 10,259,919 0.0357 98.7%36.4
TOlals 91 2184.0 4.605123 4.486177 0.1 189 130685.4 ,36,070,130 0.0114 98.9%36.8
BHV-2 on stream %98.6%BHV.2 Total Volume:4.80E+06
SCfM
Loading,Per Cent
'3 0 S
Total
Lit
TolalrStartrStoprNTG
SlOpoSlartoWeekfiller
#N beumr ate ate ross are et Ime Ime Ime ers mOlm n tream
1 8154793 04-Jan-10 11-Jan-10 4.6408 4.4824 0.1584 28131.1 27963.5 10057.2 10,394,769 0.0152 99.8%36.5
2 8154787 11-Jan-10 18.Jan·10 4.6289 4.4863 0.1426 28294.8 28131.1 9821.4 10,290,110 0.0139 97.4%31.0
3 8154781 18-Jan-10 25.Jan-10 4.4805 4.4518 0.0287 28467.4 28294.8 10351.2 10,845,194 0.0026 102.7%37.0
4 8154175 25-Jan-10 01-feb-10 4.4823 4.4821 0.0002 28633.2 28467.4 9948.0 10,422,752 0.0000 98.7%37.0
5 8154769 01-feb-10 08-feb-10 4.5414 4.4780 0.0634 28800.8 28633.2 10060.2 10,540,306 0.0060 99.8%31.0
6 8154763 OS-feb-10 15-feb-10 4.5541 4.4755 0.0786 28970.6 28800.8 10188.6 10,674,834 0.0074 101.1%31.0
7 8154757 15-feb-10 23-feb-10 4.6289 4.5064 0.1225 29158.4 28970.6 11266.2 11,171,958 0.0104 97.8%36.9
8 8154751 22-feb-10 01-Mar-10 4.5827 4.5030 0.0797 29305.7 29158.4 8836.2 9,232,872 0.0086 87.7%36.9
9 8154744 01-Mar-10 OS-Mar-10 4.6843 4.4852 0.1991 29471.5 29305.7 9952.2 10,398,971 0.0191 98.7%36.9
10 8154738 08-Mar-10 15-Mar-10 4.5172 4.4882 0.0890 29638.1 29471.5 9991.8 10,355,468 0.0086 99.1%36.6
11 8154732 15-Mar-10 23-Mar-10 4.6247 4.5010 0.1237 29809.2 29638.1 10269.6 10,585,218 0.0117 89.1%36.4
12 8154726 23-Mar-10 29-Mar-l0 4.6801 4.4962 0.1839 29974.6 29809.2 9921.0 10,225,904 0.0180 114.8%36.4
13 8154720 29-Mar-10 05-Apr-10 4.8856 4.4819 0.4037 30140.6 29974.6 9961.2 10,267,340 0.0393 98.8%36.4
Totals 91 2184.0 4.614731 4.486 0.1287 130624.8 136,005,696 0.0124 98.9%36.8
BHV-4onstream %98.7%BHV""Total Volume:4.81E+06
Week filter Start Stop Stop Start Total Total Loading,PerCent
#Number Date Dale Gross Tare Net Time Time Time Lilers molm3 On Stream SCfM
1 8154792 04-Jan-10 11-Jan-10 4.7153 4.4862 0.2291 3803.0 3635.8 10030.2 10,366,863 0.0221 99.5%36.5
2 8154786 11-Jan-10 18-Jan-10 4.7469 4.4823 0.2646 3968.0 3803.0 9899.4 10,371,832 0.0255 98.2%37.0
3 8154780 18-Jan-10 25.Jan-10 4.4917 4.4573 0.0344 4141.3 3968.0 10397.4 10,893,599 0.0032 103.1%370
4 8154174 25-Jan-10 01-feb-10 4.5494 4.4506 0.0988 4308.2 4141.3 10014.0 10,491,902 0.0094 99.3%37.0
5 8154768 01-feb-10 08-feb-10 4.5564 4.4735 0.0829 4474.9 4308.2 10004.4 10,481,843 0.0079 99.3%37.0
6 8154762 08-feb-10 15-feb-10 4.6078 4.4809 0.1269 4644.2 4474.9 10158.6 10,643,402 0.0119 100.8%37.0
7 8154756 15-Feb-10 23-Feb-10 4.7136 4.4943 0.2193 4829.9 4644.2 11139.0 11,639,048 0.0188 96.7%36.9
8 8154750 22-Feb-10 01-Mar-10 4.5985 4.4915 0.1070 4980.2 4829.9 9018.0 9,422,833 0.0114 89.5%36.9
9 8154743 01-Mar-10 08-Mar-10 4.5942 4.4728 0.1214 5147.8 4980.2 10057.2 10,508,684 0.0116 99.8%36.9
10 8154737 08-Mar-10 15-Mar-10 4.5565 4.4718 0.0847 5309.8 5147.8 9718.8 10,072,531 0.0084 96.4%36.6
11 8154731 15-Mar-10 23-Mar-10 4.6777 4.5138 0.1639 5482.5 5309.8 10362.0 10,680,458 0.0153 89.9%36.4
12 8154725 23-Mar-10 29-Mar-10 4.6879 4.5236 0.1643 5647.7 5482.5 9913.2 10,217,865 0.0161 114.7%36.4
13 8154719 29-Mar-10 05-Apr-10 4.8728 4.5071 0.3657 5814.4 5647.7 10006.2 10,313,723 0.0355 99.3%36.4
Totals 91 2184.0 4.643746 4.485054 0.1587 130718.4 136,104.583 0.0152 99.0%36.8
BHV-5on stream %98.7%BHV-5 Total Volume:4.81E+06
Week Filter Start Stop Stop Start Total Total Loading,PerCent
#Number Date Date Gross Tare Net Time Time Time Liters ma/m3 On Stream SCFM
1 8154791 04-Jao-10 11-Jan-10 4.6906 4.5100 0.1806 28100.0 27932.3 10058.4 10,396,009 0.0174 99.8%36.5
2 8154785 11-Jan-10 18-Jan-10 4.8111 4.4903 0.3208 28264.6 28100.0 9878.4 10,349,830 0.0310 98.0%37.0
3 8154779 18.Jan-10 25-Jan-10 4.5468 4.4810 0.0658 28437.6 28264.6 10381.2 10,876,626 0.0060 103.0%37.0
4 8154773 25.Jan-10 01-feb-10 4.5761 4.4737 0.1024 28604.1 28437.6 9991.2 10,468,013 0.0098 99.1%37.0
5 8154767 01-Feb-10 08-feb-10 4.5853 4.4669 0.1184 28771.1 28604.1 10014.6 10,492,530 0.0113 99.4%37.0
6 8154761 08-Feb-10 15-Feb-10 4.5728 4.4739 0.0989 28940.6 28771.1 10174.2 10,659.747 0.0093 100.9%37.0
7 8154755 15-Feb-10 23-feb-10 4.5638 4.4863 0.0775 29126.6 28940.6 11159.4 11,660,364 0.0066 96.9%36.9
8 8154749 22-Feb-10 01-Mar-10 4.5929 4.4885 0.1044 29276.1 29126.6 8970.0 9,372,678 0.0111 89.0%36.9
9 8154742 01-Mar-10 08-Mar-10 4.6171 4.4986 0.1185 29443.3 29276.1 10032.6 10,482,980 0.0113 99.5%36.9
10 8154736 08-Mar-l0 15-Mar-10 4.5694 4.4969 0.0725 29607.2 29443.3 9829.8 10,187,571 0.0071 97.5%36.6
11 8154730 15-Mar-10 23-Mar-10 4.6075 4.4633 0.1442 29779.8 29607.2 10360.2 10,678,602 0.0135 89.9%36.4
12 8154724 23-Mar-10 29-Mar-10 4.6723 4.5095 0.1628 29944.5 29779.8 9880.8 10,184,469 0.0160 114.4%36.4
13 8154718 29-Mar-10 05-Apr-10 4.8546 4.5308 0.3238 30111.0 29944.5 9988.8 10,295,788 0.0314 99.1%36.4
Totals 91 2184.0 4.635408 4.489977 0.1454 130719.6 136,105,208 0.0140 99.0%36.8
Period:January 1,2010 through AprilS,2010 (1st Quarter2010)o Page 2
8HV-6 on stream %98.7%BHV-6 Total Volume:4.81E+06
SCFM
Loading.Per Cent
o S
Total
L'
Total
T"
Start
T"
Stop
T"NTG
Stop
D t
Start
D t
Week Filter
#N beumr ae ae ross are et Ime Ime Ime Iters mafm3 n \ream
1 8154790 04-Jan-10 11-Jan-10 4.6659 4.4893 0.1766 5152.1 4985.5 9995.4 10.330.895 0.0171 99.2%36.5
2 8154784 11-Jan-10 18-Jan-10 4.6717 4.4846 0.1871 5318.2 5152.1 9966.6 10.442.239 0.0179 98.9%37.0
3 8154778 18-Jan-10 25-Jan-10 4.4954 4.4554 0.0400 5490.0 5318.2 10309.8 10.801.818 0.0037 102.3%37.0
4 8154772 25-Jan-10 01-Feb-10 4.5634 4.4804 0.0830 5656.1 5490.0 9966.6 10.442.239 0.0079 98.9%37.0
5 8154766 01-Feb-10 08-Feb-10 4.5918 4.4783 0.1135 5823.1 5656.1 10021.8 10.500.074 0.0108 99.4%37.0
6 8154760 08-Feb-10 15-Feb-10 4.5619 4.4683 0.0936 5993.0 5823.1 10189.8 10.676,091 0.0088 101.1%37.0
7 8154754 15-Feb-10 23-Feb-10 4.6187 4.5059 0.1128 6178.9 5993.0 11158.2 11.659.110 0.0097 96.9%36.9
8 8154748 22-Feb-10 01-Mar-10 4.5937 4.5010 0.0927 6328.5 6178.9 8976.6 9,379.574 0.0099 89.1%36.9
9 8154741 01-Mar-10 08-Mar-10 4.5886 4.4864 0.1022 6496.0 6328.5 10046.4 10.497.400 0.0097 99.7%36.9
10 8154735 08-Mar-10 15-Mar-10 4.5581 4.4945 0.0636 6659.2 6495.7 9811.8 10.168.916 0.0063 97.3%36.6
11 8154729 15-Mar-10 23-Mar-10 4.6264 4.5110 0.1154 6831.9 6659.2 10363.8 10.682.313 0.Q108 90.0%36.4
12 8154723 23-Mar-10 29-Mar-10 4.6634 4.5195 0.1439 6996.8 6831.9 9893.4 10.197.456 0.0141 114.5%36.4
13 8154717 29-Mar-10 05-Apr-10 4.8809 4.4961 0.3848 7163.5 6996.8 9997.2 10,304.448 0.0373 99.2%36.4
Totals 91 2184.0 4.621531 4.490054 0.1315 130697.4 136.062.572 0.0126 98.9%36.8
ALL SHVonstream %98.6%
Week
#Blanks
Start
Date
Stop
Date Net
1 8154789 04-Jan-10 11-Jan-10 4.4938
2 8154783 11-Jan-10 16-Jan-10 4.4665
3 8154777 16-Jan-10 25-Jan-10 4.4578
4 8154771 25-Jan-10 01-Feb-10 4.4665
5 8154765 01-Feb-10 08-Feb-10 4.4745
6 8154759 08·Feb-10 15-Feb-10 4.4781
7 8154747 15-Feb-10 23-Feb-10 4.4967
6 8154746 22-Feb-10 01-Mar-10 4.4765
9 8154740 01-Mar-10 08-Mar-10 4.4795
10 8154734 08-Mar-10 15-Mar-10 4.4751
11 8154726 15-Mar-10 23-Mar-10 4.5155
12 8154722 23-Mar-10 29-Mar-10 4.5079
13 8154716 29-Mar-10 05-Aor-10 4.4615
Totals 91 2184.0 4.4826
eerlod:AprilS,2010 through July 5,2010 (2nd Quarter 2010)Page 1
BHV-l on stream %100.0%BHV·1 .,Volume:4.82E+06
Week Filter Start Stop Stop Start Total Total Loading.Per Cent
#Number Date Date Gross Tare Net Time Time Time Liters mglm3 On Stream SCFM
I 8154715 5-Apr-\0 12-Apr-1O 4.7746 4.5032 0.2714 20121.4 19951.4 10203.0 10,545,463 0.0257 101.2%36.5
2 8154709 12-Apr-l0 19-Apr-10 4.8974 4,5074 0.3900 20293.1 20121.4 10299.0 10.790.503 0.0361 102.2%37.0
3 8154703 19-Apr-1O 26-Apr-10 4.7332 4,4874 0.2458 20459.4 20293.1 9978.0 10,454,183 0.0235 99.0%37.0
4 8155097 26-Apr-1O 5-May-1O 4,9691 4.5292 0,4399 20671.3 20459,4 12718.2 13.325.155 0.0330 98.1%37.0
5 8155092 05-May-10 10-May-10 4.8287 4.5208 0.3079 20795.4 20671.3 7444.8 7,800,091 0.0395 103,4%37.0
6 8155085 lO-May-IO 17-May-10 4.7540 4,5214 0.2326 20958.4 20795,4 9777.6 10.244.220 0.0227 97.0%37.0
7 8155079 17-May-10 24-May-10 5.4734 4.5205 0.9529 21132.5 20958,4 10447.2 10,9\6,192 0.0873 103.6%36.9
8 8155073 24-May-10 31-May-10 4.8842 4.5127 0.3715 21323.1 21132.5 11435,4 11.948.754 0.0311 113.4%36.9
9 8155067 31-May-10 7-Jun-IO 4.6824 4.5312 0.1512 21469.5 21323.1 8782.2 9,176.447 0.0165 87.1%36.9
10 8155061 07-Jun-1O 14-Jun-10 4.8084 4.5635 0.2449 21636.1 21469.5 9999.0 10.362.930 0.0236 99.2%36.6
II 8155055 14-Jun-10 21-Jun-10 4.8062 4.5462 0.2600 21802.5 21636.1 9981.0 10.287.748 0.0253 99.0%36,4
12 8155049 21-Jun-10 28-Jun-10 4.7518 4.5105 0.2413 21970.9 21802.5 10108.2 10,418,858 0.0232 100.3%36.4
13 8155043 28-Jun-1O 5-Jul-10 4.6389 4,4615 0.\774 22135.0 21970.9 9842,4 10.144.889 0.0175 97.6%36.4
TOlals 9\2184.0 4.8463308 4.5165769 0.3298 131016 136.415,432 0.0312 100.1%36.8
BHV-2 on stream %100.0%BHV-2 Total Volume:4.82E+06
Week Filter Start Stop Stop Start Total Total Loading.Per Cent
#Number Date Date Gross Tare Net Time Time Time Liters malm3 On Stream SCFM
1 8154714 05-Apr-l0 12-Apr-l0 4.8713 4.4746 0.3967 30310.5 30140.6 10195.2 10.537,401 0.0376 101.1%36.5
2 8154708 12-Apr-l0 19-Apr-l0 5.0556 4.5019 0.5537 30481.8 30310.5 10275.0 10.765.357 0.0514 101.9%37.0
3 8154702 19-Apr-l0 26-Apr-10 4.8131 4.5002 0.3129 30648.0 30481.8 9975.0 10.451,040 0.0299 99.0%37.0
4 8155096 26-Apr-l0 05-May-l0 4.9748 4.5284 0.4464 30860.1 30648.0 12122.4 13.329,555 0.0335 98.2%37.0
5 8155091 05-May-l0 10·May-l0 4.9488 4.5172 0.4316 30984.5 30860.1 7465.8 7.822,093 0.0552 103.7%37.0
6 8155084 1O-May-l0 17-May-l0 4.7773 4.5319 0.2454 31147.4 30984.5 9776,4 10.242.962 0.0240 97.0%37.0
7 8155078 H-May-l0 24-May-l0 5.5284 4.5061 1.0223 31321.5 31147.4 10446.6 10.915,565 0.0937 103.6%36.9
8 8155072 24-May-l0 31-May-l0 5.1894 4.5150 0.6744 31511.6 31321.5 11401.8 11.913.646 0.0566 113.1%36.9
9 8155066 31-May-l0 07-.Jun-l0 4.7504 4.5137 0.2367 31658.1 31511.6 8790.0 9.184,598 0.0258 87.2%36.9
10 8155060 07-.Jun-l0 14-Jun-l0 4.9865 4.5292 0.4573 31824.7 31658.1 9995,4 10.359.199 0.0441 99.2%36.6
11 8155054 14-Jun-10 21-Jun-l0 5.0013 4.5362 0.4651 31991.4 31824.7 10006.8 10,314.341 0.0451 99.3"10 36.4
12 8155048 21-Jun-l0 28-Jun-l0 4.8900 4.4641 0.4259 32160.0 31991.4 10113.0 10.423,805 0.0409 100.3%36.4
13 8155042 28-Jun-l0 05-Jul-l0 4.8446 4.4967 0.3479 32324.2 32160.0 9850.2 10.152.928 0.0343 97.7%36.4
Totals 91 2184.0 4.97165 4.50886 0.4628 131013.6 136,412.491 0.0440 100.1%36.8
BHV-4 on stream %99.3%BHV-4 Total Volume:4.78E+06
Week Filter Start Stop Stop Start Total Total Loading,Per Cent
#Number Date Date Gross Tare Net Time Time Time Liters ma/m3 On Stream SCFM
1 8154713 OS·Apr-l0 12-Apr-10 4.7241 4.4932 0.2309 5982.7 5814.4 10094.4 10,433.218 0.0221 100.1%36.5
2 8154707 12-Apr-10 19-Apr-l0 4.8091 4.5000 0.3091 6155.0 5982.7 10338.6 10.831.993 0.0285 102.6%37.0
3 8154701 19·Apr-l0 26-Apr-l0 4.8567 4.5058 0.3509 6321.1 6155.0 9968.4 10,444.125 0.0336 98.9%37.0
4 8155095 26-Apr-l0 05-May-l0 5.0976 4.5144 0.5832 6532.4 6321.1 12677.4 13,282.408 0.0439 97.8%31.0
5 8155090 05-May-l0 10-May-l0 4.9670 4.5348 0.4322 6657.6 6532.4 7512.6 7.871.126 0.0549 104.3%31.0
6 8155083 10-May-l0 17-May-l0 4.7900 4.5410 0.2490 6821.2 6657.6 9814.2 10.282.566 0.0242 97.4%37.0
7 8155077 H-May-l0 24-May-l0 5.7193 4.5205 1.1988 6994.6 6821.2 10404.0 10,871.053 0.1103 103.2%36.9
8 8155071 24-May-l0 31-May-l0 4.9876 4.5309 0.4567 7185.5 6994.6 11452.2 11,966.308 0.0382 113.6%36.9
9 8155065 31-May-l0 07-.Jun-l0 4.6787 4.5308 0.1479 7331.2 7185.5 8740.8 9.133.189 0.0162 86.7%36.9
10 8155059 07-Jun-l0 14-Jun-l0 4.7889 4.5331 0.2558 7497.8 7331.2 9991.2 10,361.064 0.0247 99.2%36.6
11 8155053 14-Jun-l0 21.Jun-l0 4.8454 4.5160 0.3294 7664.7 7497.8 10014.6 10,322.381 0.0319 99.4%36.4
12 8155047 21-Jun-l0 28.Jun-l0 4.6316 4.4352 0.1964 7833.1 7664.7 10107.6 10,418.239 0.0189 100.3%36.4
13 8155041 28-Jun-l0 05-.Jul-l0 4.5659 4.4760 0.0899 7982.8 7833.1 8919.6 9.255.572 0.0097 89.1%36.4
Totals 91 2184.0 4.88168 4.51013 0.3716 130101.6 135,473.243 0.0352 99,4%36.8
BHV-5 on stream %99.3%BHV-5 Total Volume:4.79E+06
Week Filter Start Stop Stop Start Total Total Loading.Per Cent
#Number Date Date Gross Tare Net Time Time Time Liters mg/m3 On Stream SCFM
1 8154712 05-Apr-l0 12-Apr-l0 4.8754 4.5021 0.3733 30279.5 30111.0 10111.2 10,450.582 0.0357 100.3%36.5
2 8154706 12-Apr-l0 19-Apr-l0 4.9273 4.4817 0.4456 30452.2 30279.5 10362.6 10,857.138 0.0410 102.8%37.0
3 8155100 19-Apr-l0 26-Apr·l0 4.8311 4.5319 0.2992 30618.4 30452.2 9973.8 10,449.783 0.0286 98.9%37.0
4 8155094 26-Apr-l0 05-May-l0 5.0922 4.5275 0.5647 30829.8 30618.4 12619.8 13.284.922 0.0425 97.8%37.0
5 8155089 05-May-l0 1O-May-l0 4.8781 4.5276 0.3505 30954.5 30829.3 7510.8 7,869.240 0.0445 104.3%37.0
6 8155082 10-May-l0 H-May-l0 4.8515 4.5269 0.3246 31118.0 30954.5 9814.8 10.283.195 0.0316 97.4%37.0
7 8155076 17-May-l0 24-May-l0 5.7346 4.5310 1.2036 31291.5 31118.0 10405.8 10.872.934 0.1107 103.2%36.9
8 8155070 24-May-l0 31-May-l0 5.0523 4.5213 0.5310 31482.9 31291.5 11483.4 11.998.909 0.0443 113.9%36.9
9 8155064 31-May-l0 07-Jun-l0 4.7405 4.5285 0.2120 31628.5 31482.9 8140.2 9.132.562 0.0232 86.7%36.9
10 8155058 07.Jun-l0 14-.Jun-l0 4.8242 4.5423 0.2819 31795.2 31628.5 9997.8 10.361.686 0.0272 99.2%36.6
11 8155052 14-Jun-l0 21-Jun-l0 4.8071 4.5188 0.2883 31961.5 31795.2 9979.2 10.285,893 0.0280 99.0%36.4
12 8155046 21-Jun-l0 28-Jun-l0 4.7877 4.4732 0.3145 32130.0 31961.5 10112.4 10.423.187 0.0302 100.3%36.4
13 8155040 28-Jun-l0 05-Jul-l0 4.6522 4.4618 0.1904 32279.5 32130.0 8968.8 9.244,440 0.0206 89.0%36.4
Totals 91 2184.0 4.92725 4.51343 0.4138 7797800 130140.6 135,514,471 0.0391 99.5%36.8
Period:April 5,2010 through July 5,20 ..1nd Quarter 2010)Page 2
BHV·6 on stream %99.3%SHV·6 Total Volume:4.78E+06
Week Filter Start Stop Stop Start Total Total Loading,Per Cent
#Number Date Date Gross Tare Net Time Time Time Uters matm3 On Stream SCFM
1 8154711 05-Apr-l0 12·Apr-l0 4.8079 4.4871 0.3208 7331.9 7163.5 10105.2 10.444,380 0.0307 100.3%36.5
2 8154705 12·Apr-l0 19-Apr-l0 4.8486 4.4930 0.3556 7504.2 7331.9 10340.4 10.833,878 0.0328 102.6%31.0
3 8155099 19-Apr-l0 26·Apr-l0 4.7658 4.5004 0.2654 7670.6 7504.2 9982.8 10.459,213 0.0254 99.0%37.0
4 8155093 26-Apr-10 05-May-10 5.0063 4.5554 0.4509 7881.4 7670.6 12646.2 13.249,719 0.0340 97.6%37.0
5 8155088 05-May·l0 10-May-l0 4.8114 4.4950 0.3164 8006.8 7881.4 7527.0 7.886,214 0.0401 104.5%37.0
6 8155081 10-May-10 17-May-10 4.7545 4.5147 0.2398 8170.4 8006.8 9814.8 10.283,195 0.0233 97.4%37.0
7 8155075 17-May-l0 24-May-10 5.4705 4.5007 0.9698 8343.8 8170.4 10404.6 10.871,680 0.0892 103.2%36.9
8 8155069 24-May-l0 31-May-10 4.8936 4.5044 0.3892 8534.5 8343.8 11442.6 11.956,277 0.0326 113.5%36.9
9 8155063 31·May-l0 07·Jun-l0 4.7083 4.5359 0.1724 8680.6 8534.5 8766.6 9,160,147 0.0188 87.0%36.9
10 8155057 07-Jun-l0 14·Jun-l0 4.7908 4.5293 0.2615 8847.2 8680.6 9997.2 10.361,064 0.0252 99.2%36.6
11 8155051 14-Jun-10 21-Jun-l0 4.8387 4.5333 0.3054 9013.8 8847.2 9991.8 10.298,880 0.0297 99.1%36.4
12 8155045 21-Jun·l0 28-Jun-l0 4.7833 4.4903 0.2930 9182.3 9013.8 10110.0 10,420,713 0.0281 100.3%36.4
13 8155039 28-Jun-l0 05-Jul-l0 4.6408 4.4793 0.1615 9332.0 9182.3 8981.4 9.257,427 0.0174 89.1%36.4
Tolals 91 2184.0 4.85542 4.50914 0.3463 130110.6 135,482.786 0.0329 99.4%36.8
ALL BHV on stream %99.6%
Week
#Blanks
Start
Date
Stop
Date Net
1 8154710 05·Apr-l0 12·Apr·l0 4.4822
2 8154704 12-Apr-l0 19·Apr·l0 4.5062
3 8155098 19·Apr-l0 26·Apr-l0 4.5189
4 8155087 26·Apr-10 05·May-l0 4.5496
5 6155086 05-May·l0 10·May-10 4.5377
6 6155080 1O-May·l0 17-May-l0 4.5307
7 6155074 17-May·10 24-May-l0 4.5225
8 6155066 24-May·10 31-May·l0 4.5319
9 8155062 31-May-10 07-Jun-l0 4.5170
10 8155056 07-Jun-10 14-Jun-l0 4.5106
11 8155050 14-Jun-10 21-Jun-l0 4.5144
12 8155044 21·Jun-10 28-Jun-l0 4.4413
13 8155033 28-Jun-10 05-Jul-10 4.5182
Totals 91 2184.0 4.5139

ATTACHMENT E

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White Mesa Mill Ambient Gamma Levels Over Time
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Background (BHV-3) subtracted from BHV-1, BHV-2, BHV-4, BHV-5, and BHV--6
White Mesa Mill Ambient Gamma Levels Over Time
BHV-1 BHV-2 BHV-3 BHV-4 BHV-5 BHV-6
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Background (BHV-3) subtracted from BHV-1, BHV-2, BHV-4, BHV-5, and BHV--6
White Mesa Mill Ambient Gamma Levels Over Time
BHV-1 BHV-2 BHV-3 BHV-4 BHV-5 BHV-6
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White Mesa Mill Ambient Gamma Levels Over Time BHV-1
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Background (BHV-3) Subtracted from BHV-1
White Mesa Mill Ambient Gamma Levels Over Time BHV-1
BHV-1
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Background (BHV-3) Subtracted from BHV-1
White Mesa Mill Ambient Gamma Levels Over Time BHV-1
BHV-1
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White Mesa Mill Ambient Gamma Levels Over Time BHV-2
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Background (BHV-3) Subtracted from BHV-2
White Mesa Mill Ambient Gamma Levels Over Time BHV-2
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Background (BHV-3) Subtracted from BHV-2
White Mesa Mill Ambient Gamma Levels Over Time BHV-2
BHV-2
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White Mesa Mill Ambient Gamma Levels Over Time BHV-3
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Background (BHV-3)
White Mesa Mill Ambient Gamma Levels Over Time BHV-3
BHV-3
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White Mesa Mill Ambient Gamma Levels Over Time BHV-4
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Background (BHV-3) Subtracted from BHV-4
White Mesa Mill Ambient Gamma Levels Over Time BHV-4
BHV-4
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White Mesa Mill Ambient Gamma Levels Over Time BHV-5
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Background (BHV-3) Subtracted from BHV- 5
White Mesa Mill Ambient Gamma Levels Over Time BHV-5
BHV-5
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White Mesa Mill Ambient Gamma Levels Over Time BHV-6
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Background (BHV-3) Subtracted from BHV- 6
White Mesa Mill Ambient Gamma Levels Over Time BHV-6
BHV-6
Badge
Number
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
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19
20
21
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23
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46
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Front Gate
Alternate Feed circuit - Barrel Dump Station
Alternate Feed Circuit - Start/Stop Switch Sump Pump Southwest
Alternate Feed Circuit - Start/Stop Switch Sump Pump Impurity Removal Tanks
Mill Lunch Room - Located on Projection Screen on West Wall
South SX - Located on Column #10
Electrical Foreman's Office - Located on North Wall
Ore Feed Grizzly - Located on North Wall at Power Distribution Boxes
Scalehouse - Located in Office at Northeast Corner
OBS (Sample Plant) - Located on South Side of Southwest Entrance Door
North SX - Located on Regen. Pump Start/Stop Switch
Administration Building - Located on Main Bulletin Board
In Tree By Picnic Bench Outside Administration Building
Yellowcake Packaging - Hung on Wall outside Door
North Yellowcake Dryer Area 2nd Level on N. Dryer Temp. Ctrl. Box
Bucking Room - Located on East Wall Behind Crusher
BHV-3
BHV-4
BHV-5
SAG Mill - Located Outside SAG Mill Control Room Door (North Side)
Tails - Located on Cell 2 at the Power Distribution Center
CCD - Located Outside MCC On North Wall on Breaker Box
Ore Pad - Decontamination Pad
Barrel Dump Station - Located at Operator's Panel
Metallurgical Laboratory - Hanging From Ceiling
Filter Press Room - Located on North Wall
BHV-1
BHV-2
Vanadium Precipitation - Located on Agitator Start Stop Button
Yellowcake Drying Area - Located on North Yellowcake Dryer Alarm
Leach Area - Located at #2 Leach Tank Eyewash Station
Derrick Screens - northeast corner
Yellowcake Precip. - Located on S. Wall by Yellowcake Acid Redissolve Tank
Central Control Room - Located on Shifter's Bulletin Board
Location of Spherical Environmental Monitors 1st Quarter 2010
Location of Monitors
Administration Building - Vault (Control)
Vanadium Control Room - Located on South Wall
BHV-6
Ore Storage - Cameco Barrel Storage Area
Badge
Number Location Date Issued Date Returned
Total Days
Badge at
WMM
Mean
Ambient
Dose
Equivalent
mRem /
hour mRem / Day
mRem /
Week
Control Administration Vault 1/12/2010 3/31/2010 78 31.9 0.02 0.409 2.86
1 V2O5 Control Room 1/12/2010 3/31/2010 78 44.3 0.02 0.568 3.98
2 BHV-6 1/12/2010 3/31/2010 78 22 0.01 0.282 1.97
3 Ore Stor. - Molycorp Area 1/12/2010 3/31/2010 78 1378.7 0.74 17.676 123.73
4 Vanadium Precip.Area 1/12/2010 3/31/2010 78 48 0.03 0.615 4.31
5 Yellocake Drying Area 1/12/2010 3/31/2010 78 147.2 0.08 1.887 13.21
6 Leach 1/12/2010 3/31/2010 78 245.3 0.13 3.145 22.01
7 SAG Mill Control Room 1/12/2010 3/31/2010 78 151.9 0.08 1.947 13.63
8 Yellowcake Precip. 1/12/2010 3/31/2010 78 126.6 0.07 1.623 11.36
9 Central Control Room 1/12/2010 3/31/2010 78 69.7 0.04 0.894 6.26
10 Trommel Screen (ore pad) 1/12/2010 3/31/2010 78 188.6 0.10 2.418 16.93
11 Barrel Dumping Station 1/12/2010 3/31/2010 78 330.9 0.18 4.242 29.70
12 Met. Lab 1/12/2010 3/31/2010 78 63.7 0.03 0.817 5.72
13 Filter Press Room 1/12/2010 3/31/2010 78 127.1 0.07 1.629 11.41
14 BHV-1 1/12/2010 3/31/2010 78 27.5 0.01 0.353 2.47
15 BHV-2 1/12/2010 3/31/2010 78 25.5 0.01 0.327 2.29
16 BHV-3 1/12/2010 3/31/2010 78 25.6 0.01 0.328 2.30
17 BHV-4 1/12/2010 3/31/2010 78 24.5 0.01 0.314 2.20
18 BHV-5 1/12/2010 3/31/2010 78 26.3 0.01 0.337 2.36
19 SAG Mill 1/12/2010 3/31/2010 78 187 0.10 2.397 16.78
20 Tails 1/12/2010 3/31/2010 78 89.2 0.05 1.144 8.01
21 CCD 1/12/2010 3/31/2010 78 71.1 0.04 0.912 6.38
22 North SX 1/12/2010 3/31/2010 78 73.6 0.04 0.944 6.61
23 Administration Building 1/12/2010 3/31/2010 78 34.6 0.02 0.444 3.11
24 Admin Parking Lot 1/12/2010 3/31/2010 78 71.3 0.04 0.914 6.40
25 Yellowcake Packaging 1/12/2010 3/31/2010 78 413.4 0.22 5.300 37.10
26 Yellowcake Storage 1/12/2010 3/31/2010 78 319 0.17 4.090 28.63
27 Bucking Room 1/12/2010 3/31/2010 78 136.3 0.07 1.747 12.23
28 Mill Lunch Room 1/12/2010 3/31/2010 78 53.3 0.03 0.683 4.78
29 South SX 1/12/2010 3/31/2010 78 185.5 0.10 2.378 16.65
30 Mtce. Super.'s Office 1/12/2010 3/31/2010 78 42.8 0.02 0.549 3.84
31 Ore Feed Grizzly 1/12/2010 3/31/2010 78 168.4 0.09 2.159 15.11
32 Scalehouse 1/12/2010 3/31/2010 78 199.7 0.11 2.560 17.92
33 Sample Plant (OBS) 1/12/2010 3/31/2010 78 178.8 0.10 2.292 16.05
34 Front Gate 1/12/2010 3/31/2010 78 139.8 0.07 1.792 12.55
White Mesa Mill First Quarter 2010 Environmental Spherical Gamma Monitor Results
35 Arizona 1 Travel Way 1/12/2010 3/31/2010 78 33.8 0.02 0.433 3.03
36 Arizona 1 Travel Way 1/12/2010 3/31/2010 78 34.3 0.02 0.440 3.08
37 Arizona 1 Travel Way 1/12/2010 3/31/2010 78 29.4 0.02 0.377 2.64
38 Arizona 1 Travel Way 1/12/2010 3/31/2010 78 33.5 0.02 0.429 3.01
39 Arizona 1 Travel Way 1/12/2010 3/31/2010 78 35.7 0.02 0.458 3.20
40 Arizona 1 Travel Way 1/12/2010 3/31/2010 78 34.9 0.02 0.447 3.13
41 Arizona 1 Travel Way 1/12/2010 3/31/2010 78 36.6 0.02 0.469 3.28
42 Arizona 1 Travel Way 1/12/2010 3/31/2010 78 40.5 0.02 0.519 3.63
43 Arizona 1 Travel Way 1/12/2010 3/31/2010 78 29.1 0.02 0.373 2.61
44 Arizona 1 Travel Way 1/12/2010 3/31/2010 78 31.4 0.02 0.403 2.82
45 AF - Barrel Dump Station 1/12/2010 3/31/2010 78 82.1 0.04 1.053 7.37
46 AF - South Side 1/12/2010 3/31/2010 78 53.7 0.03 0.688 4.82
47 AF - North Side 1/12/2010 3/31/2010 78 227.1 0.12 2.912 20.38
Control Front Gate 1/12/2010 3/31/2010 78 31.9 0.02 0.409 2.86
14 BHV-1 1/12/2010 3/31/2010 78 27.5 0.01 0.353 2.47
15 BHV-2 1/12/2010 3/31/2010 78 25.5 0.01 0.327 2.29
16 BHV-3 1/12/2010 3/31/2010 78 25.6 0.01 0.328 2.30
17 BHV-4 1/12/2010 3/31/2010 78 24.5 0.01 0.314 2.20
18 BHV-5 1/12/2010 3/31/2010 78 26.3 0.01 0.337 2.36
19 SAG Mill 1/12/2010 3/31/2010 78 187 0.10 2.397 16.78
6 Leach 1/12/2010 3/31/2010 78 245.3 0.13 3.145 22.01
21 CCD 1/12/2010 3/31/2010 78 71.1 0.04 0.912 6.38
22 North SX 1/12/2010 3/31/2010 78 73.6 0.04 0.944 6.61
29 South SX 1/12/2010 3/31/2010 78 185.5 0.10 2.378 16.65
8 Yellowcake Precip. 1/12/2010 3/31/2010 78 126.6 0.07 1.623 11.36
25 Yellowcake Packaging 1/12/2010 3/31/2010 78 413.4 0.22 5.300 37.10
26 Yellowcake Storage 1/12/2010 3/31/2010 78 319 0.17 4.090 28.63
27 Bucking Room 1/12/2010 3/31/2010 78 136.3 0.07 1.747 12.23
28 Mill Lunch Room 1/12/2010 3/31/2010 78 53.3 0.03 0.683 4.78
31 Ore Feed Grizzly 1/12/2010 3/31/2010 78 168.4 0.09 2.159 15.11
33 Sample Plant (OBS) 1/12/2010 3/31/2010 78 178.8 0.10 2.292 16.05
23 Administration Building 1/12/2010 3/31/2010 78 34.6 0.02 0.444 3.11
24 Admin Power Pole 1/12/2010 3/31/2010 78 71.3 0.04 0.914 6.40
1 V2O5 Control Room 1/12/2010 3/31/2010 78 44.3 0.02 0.568 3.98
2 BHV-6 1/12/2010 3/31/2010 78 22 0.01 0.282 1.97
4 Vanadium Precip.Area 1/12/2010 3/31/2010 78 48 0.03 0.615 4.31
32 Scalehouse 1/12/2010 3/31/2010 78 199.7 0.11 2.560 17.92
20 Tails 1/12/2010 3/31/2010 78 89.2 0.05 1.144 8.01
13 Filter Press Room 1/12/2010 3/31/2010 78 127.1 0.07 1.629 11.41
12 Met. Lab 1/12/2010 3/31/2010 78 63.7 0.03 0.817 5.72
Badge
Number
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
45
46
47
Front Gate
Alternate Feed circuit - Barrel Dump Station
Alternate Feed Circuit - Start/Stop Switch Sump Pump Southwest
Alternate Feed Circuit - Start/Stop Switch Sump Pump Impurity Removal Tanks
Mill Lunch Room - Located on Projection Screen on West Wall
South SX - Located on Column #10
Electrical Foreman's Office - Located on North Wall
Ore Feed Grizzly - Located on North Wall at Power Distribution Boxes
Scalehouse - Located in Office at Northeast Corner
OBS (Sample Plant) - Located on South Side of Southwest Entrance Door
North SX - Located on Regen. Pump Start/Stop Switch
Administration Building - Located on Main Bulletin Board
In Tree By Picnic Bench Outside Administration Building
Yellowcake Packaging - Hung on Wall outside Door
North Yellowcake Dryer Area 2nd Level on N. Dryer Temp. Ctrl. Box
Bucking Room - Located on East Wall Behind Crusher
BHV-3
BHV-4
BHV-5
SAG Mill - Located Outside SAG Mill Control Room Door (North Side)
Tails - Located on Cell 2 at the Power Distribution Center
CCD - Located Outside MCC On North Wall on Breaker Box
Ore Pad - Decontamination Pad
Barrel Dump Station - Located at Operator's Panel
Metallurgical Laboratory - Hanging From Ceiling
Filter Press Room - Located on North Wall
BHV-1
BHV-2
Vanadium Precipitation - Located on Agitator Start Stop Button
Yellowcake Drying Area - Located on North Yellowcake Dryer Alarm
Leach Area - Located at #2 Leach Tank Eyewash Station
Derrick Screens - northeast corner
Yellowcake Precip. - Located on S. Wall by Yellowcake Acid Redissolve Tank
Central Control Room - Located on Shifter's Bulletin Board
Location of Spherical Environmental Monitors 2nd Quarter 2010
Location of Monitors
Administration Building - Vault (Control)
Vanadium Control Room - Located on South Wall
BHV-6
Ore Storage - Cameco Barrel Storage Area
Badge
Number Location Date Issued Date Returned
Total Days
Badge at
WMM
Mean
Ambient
Dose
Equivalent
mRem /
hour mRem / Day
mRem /
Week
Control Administration Vault 3/31/2010 7/6/2010 97 35.6 0.02 0.367 2.57
1 V2O5 Control Room 3/31/2010 7/6/2010 97 56 0.02 0.577 4.04
2 BHV-6 3/31/2010 7/6/2010 97 31.3 0.01 0.323 2.26
3 Ore Stor. - Molycorp Area 3/31/2010 7/6/2010 97 1895 0.81 19.536 136.75
4 Vanadium Precip.Area 3/31/2010 7/6/2010 97 91.2 0.04 0.940 6.58
5 Yellocake Drying Area 3/31/2010 7/6/2010 97 168.2 0.07 1.734 12.14
6 Leach 3/31/2010 7/6/2010 97 204.1 0.09 2.104 14.73
7 SAG Mill Control Room 3/31/2010 7/6/2010 97 0 0.00 0.000 0.00
8 Yellowcake Precip. 3/31/2010 7/6/2010 97 116.6 0.05 1.202 8.41
9 Central Control Room 3/31/2010 7/6/2010 97 88.4 0.04 0.911 6.38
10 Trommel Screen (ore pad) 3/31/2010 7/6/2010 97 267.9 0.12 2.762 19.33
11 Barrel Dumping Station 3/31/2010 7/6/2010 97 561.5 0.24 5.789 40.52
12 Met. Lab 3/31/2010 7/6/2010 97 75.7 0.03 0.780 5.46
13 Filter Press Room 3/31/2010 7/6/2010 97 159.4 0.07 1.643 11.50
14 BHV-1 3/31/2010 7/6/2010 97 36.4 0.02 0.375 2.63
15 BHV-2 3/31/2010 7/6/2010 97 33 0.01 0.340 2.38
16 BHV-3 3/31/2010 7/6/2010 97 32.7 0.01 0.337 2.36
17 BHV-4 3/31/2010 7/6/2010 97 33.1 0.01 0.341 2.39
18 BHV-5 3/31/2010 7/6/2010 97 35.4 0.02 0.365 2.55
19 SAG Mill 3/31/2010 7/6/2010 97 269.5 0.12 2.778 19.45
20 Tails 3/31/2010 7/6/2010 97 145.9 0.06 1.504 10.53
21 CCD 3/31/2010 7/6/2010 97 86.4 0.04 0.891 6.24
22 North SX 3/31/2010 7/6/2010 97 94.1 0.04 0.970 6.79
23 Administration Building 3/31/2010 7/6/2010 97 43.4 0.02 0.447 3.13
24 Admin Parking Lot 3/31/2010 7/6/2010 97 109.1 0.05 1.125 7.87
25 Yellowcake Packaging 3/31/2010 7/6/2010 97 547.5 0.24 5.644 39.51
26 Yellowcake Storage 3/31/2010 7/6/2010 97 411.1 0.18 4.238 29.67
27 Bucking Room 3/31/2010 7/6/2010 97 108.2 0.05 1.115 7.81
28 Mill Lunch Room 3/31/2010 7/6/2010 97 68 0.03 0.701 4.91
29 South SX 3/31/2010 7/6/2010 97 158.6 0.07 1.635 11.45
30 Mtce. Super.'s Office 3/31/2010 7/6/2010 97 51.1 0.02 0.527 3.69
31 Ore Feed Grizzly 3/31/2010 7/6/2010 97 360.7 0.15 3.719 26.03
32 Scalehouse 3/31/2010 7/6/2010 97 267.3 0.11 2.756 19.29
33 Sample Plant (OBS) 3/31/2010 7/6/2010 97 294 0.13 3.031 21.22
34 Front Gate 3/31/2010 7/6/2010 97 223.2 0.10 2.301 16.11
White Mesa Mill Second Quarter 2010 Environmental Spherical Gamma Monitor Results
35 Arizona 1 Travel Way 3/31/2010 7/6/2010 97 37.9 0.02 0.391 2.74
36 Arizona 1 Travel Way 3/31/2010 7/6/2010 97 35.5 0.02 0.366 2.56
37 Arizona 1 Travel Way 3/31/2010 7/6/2010 97 38.5 0.02 0.397 2.78
38 Arizona 1 Travel Way 3/31/2010 7/6/2010 97 39.9 0.02 0.411 2.88
39 Arizona 1 Travel Way 3/31/2010 7/6/2010 97 85.7 0.04 0.884 6.18
40 Arizona 1 Travel Way 3/31/2010 7/6/2010 97 38.5 0.02 0.397 2.78
41 Arizona 1 Travel Way 3/31/2010 7/6/2010 97 37.5 0.02 0.387 2.71
42 Arizona 1 Travel Way 3/31/2010 7/6/2010 97 42.8 0.02 0.441 3.09
43 Arizona 1 Travel Way 3/31/2010 7/6/2010 97 33.7 0.01 0.347 2.43
44 Arizona 1 Travel Way 3/31/2010 7/6/2010 97 34.7 0.01 0.358 2.50
45 AF - Barrel Dump Station 3/31/2010 7/6/2010 97 165.3 0.07 1.704 11.93
46 AF - South Side 3/31/2010 7/6/2010 97 91.7 0.04 0.945 6.62
47 AF - North Side 3/31/2010 7/6/2010 97 163.4 0.07 1.685 11.79
Control Front Gate 3/31/2010 7/6/2010 97 35.6 0.02 0.367 2.57
14 BHV-1 3/31/2010 7/6/2010 97 36.4 0.02 0.375 2.63
15 BHV-2 3/31/2010 7/6/2010 97 33 0.01 0.340 2.38
16 BHV-3 3/31/2010 7/6/2010 97 32.7 0.01 0.337 2.36
17 BHV-4 3/31/2010 7/6/2010 97 33.1 0.01 0.341 2.39
18 BHV-5 3/31/2010 7/6/2010 97 35.4 0.02 0.365 2.55
19 SAG Mill 3/31/2010 7/6/2010 97 269.5 0.12 2.778 19.45
6 Leach 3/31/2010 7/6/2010 97 204.1 0.09 2.104 14.73
21 CCD 3/31/2010 7/6/2010 97 86.4 0.04 0.891 6.24
22 North SX 3/31/2010 7/6/2010 97 94.1 0.04 0.970 6.79
29 South SX 3/31/2010 7/6/2010 97 158.6 0.07 1.635 11.45
8 Yellowcake Precip. 3/31/2010 7/6/2010 97 116.6 0.05 1.202 8.41
25 Yellowcake Packaging 3/31/2010 7/6/2010 97 547.5 0.24 5.644 39.51
26 Yellowcake Storage 3/31/2010 7/6/2010 97 411.1 0.18 4.238 29.67
27 Bucking Room 3/31/2010 7/6/2010 97 108.2 0.05 1.115 7.81
28 Mill Lunch Room 3/31/2010 7/6/2010 97 68 0.03 0.701 4.91
31 Ore Feed Grizzly 3/31/2010 7/6/2010 97 360.7 0.15 3.719 26.03
33 Sample Plant (OBS) 3/31/2010 7/6/2010 97 294 0.13 3.031 21.22
23 Administration Building 3/31/2010 7/6/2010 97 43.4 0.02 0.447 3.13
24 Admin Power Pole 3/31/2010 7/6/2010 97 109.1 0.05 1.125 7.87
1 V2O5 Control Room 3/31/2010 7/6/2010 97 56 0.02 0.577 4.04
2 BHV-6 3/31/2010 7/6/2010 97 31.3 0.01 0.323 2.26
4 Vanadium Precip.Area 3/31/2010 7/6/2010 97 91.2 0.04 0.940 6.58
32 Scalehouse 3/31/2010 7/6/2010 97 267.3 0.11 2.756 19.29
20 Tails 3/31/2010 7/6/2010 97 145.9 0.06 1.504 10.53
13 Filter Press Room 3/31/2010 7/6/2010 97 159.4 0.07 1.643 11.50
12 Met. Lab 3/31/2010 7/6/2010 97 75.7 0.03 0.780 5.46

ATTACHMENT F

1.00E-02
Ra-226 Concentrations in Vegetation (uCi/Kg)
1.00E-03
1 00E 05
1.00E-04
le)
1.00E-06
1.00E-05
(L
o
g

S
c
a
l
1.00E-07
1.00E-08
27/
1
9
8
1
27/
1
9
8
2
27/
1
9
8
3
27/
1
9
8
4
27/
1
9
8
5
27/
1
9
8
6
27/
1
9
8
7
27/
1
9
8
8
27/
1
9
8
9
27/
1
9
9
0
27/
1
9
9
1
27/
1
9
9
2
27/
1
9
9
3
27/
1
9
9
4
27/
1
9
9
5
27/
1
9
9
6
27/
1
9
9
7
27/
1
9
9
8
27/
1
9
9
9
27/
2
0
0
0
27/
2
0
0
1
27/
2
0
0
2
27/
2
0
0
3
27/
2
0
0
4
27/
2
0
0
5
27/
2
0
0
6
27/
2
0
0
7
27/
2
0
0
8
27/
2
0
0
9
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
NE NW SW
1.00E-02
Pb-210 Concentrations In Vegetation (uCi/Kg)
1.00E-03
1 00E 05
1.00E-04
le)
1.00E-06
1.00E-05
(L
o
g

S
c
a
l
1.00E-07
1.00E-08
27/
1
9
8
1
27/
1
9
8
2
27/
1
9
8
3
27/
1
9
8
4
27/
1
9
8
5
27/
1
9
8
6
27/
1
9
8
7
27/
1
9
8
8
27/
1
9
8
9
27/
1
9
9
0
27/
1
9
9
1
27/
1
9
9
2
27/
1
9
9
3
27/
1
9
9
4
27/
1
9
9
5
27/
1
9
9
6
27/
1
9
9
7
27/
1
9
9
8
27/
1
9
9
9
27/
2
0
0
0
27/
2
0
0
1
27/
2
0
0
2
27/
2
0
0
3
27/
2
0
0
4
27/
2
0
0
5
27/
2
0
0
6
27/
2
0
0
7
27/
2
0
0
8
27/
2
0
0
9
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
8/
2
NE NW SW
1.00E-02
WHITE MESA MILL - NORTHEAST OF MILL Ra-226 and Pb-210 Concentrations in Vegetation
(uCi/Kg)
1.00E-03
1 00E-05
1.00E-04
le
)
1.00E-06
1.00E 05
(L
o
g

S
c
a
1.00E-07
1.00E-08
1-J
a
n
-
8
1

1-J
a
n
-
8
2

1-J
a
n
-
8
3

1-J
a
n
-
8
4

1-J
a
n
-
8
5

1-J
a
n
-
8
6

1-J
a
n
-
8
7

1-J
a
n
-
8
8

1-J
a
n
-
8
9

1-J
a
n
-
9
0

1-J
a
n
-
9
1

1-J
a
n
-
9
2

1-J
a
n
-
9
3

1-J
a
n
-
9
4

1-J
a
n
-
9
5

1-J
a
n
-
9
6

1-J
a
n
-
9
7

1-J
a
n
-
9
8

1-J
a
n
-
9
9

1-J
a
n
-
0
0

1-J
a
n
-
0
1

1-J
a
n
-
0
2

1-J
a
n
-
0
3

1-J
a
n
-
0
4

1-J
a
n
-
0
5

1-J
a
n
-
0
6

1-J
a
n
-
0
7

1-J
a
n
-
0
8

1-J
a
n
-
0
9

1-J
a
n
-
1
0

01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01
Ra-226 Pb-210
1.00E-02
WHITE MESA MILL - NORTHWEST OF MILL Ra-226 and Pb-210 Concentrations in Vegetation
(uCi/Kg)
1.00E-03
1.00E-04
le
)
1.00E-06
1.00E-05
(L
o
g

S
c
a
1.00E-07
1.00E-08
Ja
n
-
8
1

Ja
n
-
8
2

Ja
n
-
8
3

Ja
n
-
8
4

Ja
n
-
8
5

Ja
n
-
8
6

Ja
n
-
8
7

Ja
n
-
8
8

Ja
n
-
8
9

Ja
n
-
9
0

Ja
n
-
9
1

Ja
n
-
9
2

Ja
n
-
9
3

Ja
n
-
9
4

Ja
n
-
9
5

Ja
n
-
9
6

Ja
n
-
9
7

Ja
n
-
9
8

Ja
n
-
9
9

Ja
n
-
0
0

Ja
n
-
0
1

Ja
n
-
0
2

Ja
n
-
0
3

Ja
n
-
0
4

Ja
n
-
0
5

Ja
n
-
0
6

Ja
n
-
0
7

Ja
n
-
0
8

Ja
n
-
0
9

Ja
n
-
1
0

01
-
01
-
01
-
01
-
01
-
01
-
01
-
01
-
01
-
01
-
01
-
01
-
01
-
01
-
01
-
01
-
01
-
01
-
01
-
01
-
01
-
01
-
01
-
01
-
01
-
01
-
01
-
01
-
01
-
01
-
Ra-226 Pb-210
1.00E+00
WHITE MESA MILL - SOUTHWEST OF MILL Ra-226 and Pb-210 Concentrations in Vegetation
(uCi/Kg)
1.00E-02
1.00E-01
1.00E-04
1.00E-03
le
)
1.00E-05
1.00E 04
(L
o
g

S
c
a
1.00E-07
1.00E-06
1.00E-08
1-J
a
n
-
8
1

1-J
a
n
-
8
2

1-J
a
n
-
8
3

1-J
a
n
-
8
4

1-J
a
n
-
8
5

1-J
a
n
-
8
6

1-J
a
n
-
8
7

1-J
a
n
-
8
8

1-J
a
n
-
8
9

1-J
a
n
-
9
0

1-J
a
n
-
9
1

1-J
a
n
-
9
2

1-J
a
n
-
9
3

1-J
a
n
-
9
4

1-J
a
n
-
9
5

1-J
a
n
-
9
6

1-J
a
n
-
9
7

1-J
a
n
-
9
8

1-J
a
n
-
9
9

1-J
a
n
-
0
0

1-J
a
n
-
0
1

1-J
a
n
-
0
2

1-J
a
n
-
0
3

1-J
a
n
-
0
4

1-J
a
n
-
0
5

1-J
a
n
-
0
6

1-J
a
n
-
0
7

1-J
a
n
-
0
8

1-J
a
n
-
0
9

1-J
a
n
-
1
0

01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01
Ra-226 Pb-210
WHITE MESA MILL
FORAGE RADIONUCLIDE DATA
NORTHEAST OF MILL
SAMPLED QTR. SAMPLED DATE Ra‐226 Ra‐226 LLD Pb‐210 Pb‐210 LLD
VALUE (uCi/Kg) ERROR (uCi/Kg) uCi/Kg (5.0E‐08) VALUE (uCi/Kg) ERROR (uCi/Kg) uCi/Kg (1.0E‐06)
3rd '81 27‐Aug‐81 3.90E‐04 1.0E‐05 5.0E‐08 1.10E‐03 1.0E‐04 1.0E‐06
4th '81 20‐Oct‐81 1.40E‐04 1.0E‐05 5.0E‐08 6.80E‐04 8.0E‐05 1.0E‐06
2nd '82 15‐Apr‐82 1.31E‐04 1.3E‐05 1.0E‐06 4.90E‐04 7.0E‐05 8.0E‐05
3rd '82 01‐Jul‐82 1.60E‐04 1.0E‐05 5.0E‐08 8.00E‐04 1.7E‐04 1.0E‐07
4th '82 30‐Nov‐82 2.67E‐06 1.1E‐06 1.0E‐06 1.08E‐04 9.0E‐06 1.0E‐05
2nd '83 13‐Apr‐83 9.36E‐05 6.2E‐06 8.0E‐09 4.97E‐04 9.3E‐05 1.0E‐04
3rd '83 01‐Jul‐83 1.12E‐04 1.2E‐05 6.0E‐06 1.84E‐04 1.2E‐05 1.0E‐06
4th '83 30‐Jan‐84 1.09E‐04 8.0E‐06 4.0E‐06 7.80E‐04 6.2E‐05 6.0E‐05
2nd '84 28‐Jun‐84 3.47E‐04 1.2E‐05 2.0E‐09 3.75E‐03 1.6E‐04 4.0E‐08
4th '84 14‐Nov‐84 5.61E‐04 2.0E‐04 2.0E‐07 7.82E‐03 3.3E‐04 7.0E‐08
2nd '85 27‐Mar‐85 1.05E‐03 3.0E‐05 2.0E‐06 3.22E‐03 1.4E‐04 2.0E‐05
3rd '85 15‐Jul‐85 8.20E‐05 7.0E‐06 3.0E‐06 7.70E‐04 1.3E‐04 2.0E‐04
4th '85 09‐Oct‐85 1.15E‐04 1.0E‐05 3.0E‐06 5.10E‐04 3.0E‐05 2.0E‐05
2nd '86 24‐Mar‐86 5.72E‐04 2.1E‐05 4.0E‐06 2.49E‐03 1.0E‐04 1.0E‐05
3rd '86 10‐Jul‐86 5.01E‐04 1.3E‐05 3.0E‐06 1.57E‐03 1.7E‐03 2.0E‐04
4th '86 18‐Dec‐86 8.70E‐04 5.0E‐05 3.0E‐06 6.80E‐04 3.0E‐05 3.0E‐06
2nd '87 20‐Apr‐87 5.90E‐04 7.0E‐05 5.0E‐08 1.50E‐03 1.0E‐04 1.0E‐06
3rd '87 05‐Jun‐87 1.60E‐04 3.0E‐05 5.0E‐08 9.50E‐04 4.0E‐05 1.0E‐06
4th '87 22‐Dec‐87 2.10E‐04 4.0E‐05 5.0E‐08 1.70E‐03 1.0E‐04 1.0E‐06
2nd '88 19‐Apr‐88 4.50E‐04 7.0E‐05 5.0E‐08 1.40E‐03 1.0E‐04 1.0E‐06
3rd '88 28‐Jul‐88 3.20E‐05 2.2E‐05 5.0E‐08 1.50E‐04 4.4E‐04 1.0E‐06
 2nd '89 07‐Apr‐89 5.60E‐04 4.0E‐05 *** 1.10E‐03 1.0E‐01 ***
 3rd '89 06‐Jun‐89 1.50E‐04 2.0E‐05 *** 2.30E‐04 2.0E‐05 ***
 4th '89 07‐Nov‐89 6.00E‐04 5.0E‐05 7.0E‐06 2.04E‐03 7.0E‐05 1.4E‐05
 1st '90 17‐Apr‐90 2.60E‐04 3.0E‐05 4.0E‐06 3.30E‐04 2.0E‐05 2.2E‐05
 2nd '90 20‐Jun‐90 1.80E‐04 2.0E‐05 5.0E‐08 3.20E‐04 2.0E‐05 1.0E‐06
 3rd '90 17‐Oct‐90 1.60E‐04 2.0E‐05 5.0E‐08 3.30E‐04 2.0E‐05 1.0E‐06
 1st '91 10‐Apr‐91 1.20E‐04 2.0E‐05 5.0E‐06 3.00E‐04 2.0E‐05 1.0E‐06
 2nd '91 11‐Jun‐91 9.10E‐05 1.6E‐05 2.0E‐07 1.90E‐04 2.0E‐05 2.0E‐07
 3rd '91 20‐Nov‐91 4.50E‐04 4.0E‐05 5.0E‐08 1.09E‐03 5.0E‐05 1.0E‐06
 1st '92 22‐Apr‐92 3.60E‐05 1.0E‐05 2.0E‐06 1.50E‐04 2.0E‐05 1.0E‐05
 2nd '92 10‐Jun‐92 1.00E‐05 7.0E‐06 2.0E‐07 7.50E‐05 2.0E‐05 1.0E‐06
 3rd '92 10‐Jun‐92 7.90E‐05 3.5E‐05 3.0E‐06 7.10E‐04 7.0E‐05 2.0E‐05
 1st '93 13‐Apr‐93 3.70E‐05 2.2E‐05 3.0E‐06 2.80E‐04 3.0E‐05 2.0E‐05
 2nd '93 26‐Jun‐93 3.00E‐05 1.5E‐05 3.0E‐06 4.30E‐05 3.5E‐05 2.0E‐05
 3rd '93 12‐Oct‐93 6.60E‐05 2.7E‐05 3.0E‐06 5.30E‐04 6.0E‐05 2.0E‐05
 1st '94 11‐May‐94 1.80E‐04 4.0E‐05 3.0E‐05 4.40E‐04 6.0E‐05 2.0E‐04
 2nd '94 19‐Jul‐94 1.71E‐05 1.2E‐06 9.0E‐08 3.00E‐05 6.1E‐06 4.5E‐06
 3rd '94 28‐Nov‐94 2.40E‐04 1.5E‐05 1.7E‐07 1.70E‐04 1.1E‐05 8.3E‐07
 1st '95 11‐Apr‐95 6.70E‐05 5.4E‐06 1.6E‐07 1.40E‐04 1.3E‐05 7.9E‐07
 2nd '95 06‐Jul‐95 1.50E‐05 1.5E‐06 1.5E‐07 5.10E‐05 4.5E‐06 7.6E‐07
3rd  '95 15‐Nov‐95 5.50E‐05 5.0E‐06 1.8E‐07 6.70E‐05 1.0E‐05 8.8E‐07
1st  '96 23‐Apr‐96 5.20E‐05 2.5E‐06 1.5E‐07 3.20E‐05 4.5E‐06 1.8E‐07
2nd '96 *31‐Jul‐96
3rd '96 14‐Nov‐96 3.00E‐05 2.5E‐06 1.8E‐07 1.40E‐04 7.1E‐06 9.3E‐07
1st '97 21‐Apr‐97 1.10E‐05 4.7E‐07 1.2E‐07 4.10E‐05 3.6E‐06 6.1E‐07
3rd '97 05‐Sep‐97 1.10E‐05 4.3E‐07 1.3E‐07 2.10E‐05 7.3E‐07 6.7E‐07
4th '97 20‐Nov‐97 8.00E‐06 1.2E‐06 5.6E‐07 1.40E‐04 4.6E‐06 1.1E‐07
1st '98 23‐Mar‐98 <9.10E‐05 9.1E‐05 9.1E‐05 <4.50E‐04 4.5E‐04 4.5E‐04
2nd '98 16‐Jun‐98 1.80E‐05 1.2E‐06 6.3E‐08 4.00E‐05 1.8E‐06 3.2E‐07
4th '98 05‐Nov‐98 5.70E‐05 1.0E‐06 8.2E‐08 8.70E‐05 5.0E‐06 4.1E‐07
2nd '99 15‐Apr‐99 2.00E‐04 3.0E‐06 1.2E‐07 3.00E‐04 1.0E‐05 6.0E‐05
3rd '99 07‐Jul‐99 6.03E‐05 1.4E‐06 8.3E‐08 1.40E‐04 4.7E‐06 4.2E‐07
4th '99 02‐Dec‐99 2.30E‐05 1.0E‐06 2.3E‐07 2.10E‐05 1.0E‐06 1.1E‐06
2nd '00 21‐Apr‐00 1.50E‐04 3.0E‐06 1.2E‐07 1.60E‐04 8.0E‐06 5.9E‐07
2nd '00 22‐Jun‐00 1.20E‐06 1.0E‐07 2.8E‐07 1.60E‐04 1.0E‐05 1.4E‐06
4th '00 21‐Dec‐00 1.60E‐06 1.1E‐06 3.7E‐07 5.10E‐05 5.0E‐06 1.9E‐06
1st '01 30‐Apr‐01 1.00E‐06 1.0E‐07 2.4E‐07 <1.2E‐06 1.0E‐07 2.4E‐07
2nd '01 14‐Jun‐01 2.30E‐06 2.0E‐07 9.9E‐08 3.80E‐06 2.0E‐07 5.0E‐07
4th '01 17‐Dec‐01 9.10E‐06 2.4E‐06 1.2E‐07 3.57E‐05 3.0E‐06 6.0E‐07
1st '02 07‐May‐02 3.30E‐05 1.8E‐06 7.6E‐07 4.50E‐05 2.6E‐06 1.0E‐05
2nd '02 07‐Jul‐02 5.55E‐05 2.8E‐06 7.6E‐07 5.31E‐05 3.9E‐06 1.0E‐05
4th '02 15‐Dec‐02 7.75E‐05 3.6E‐06 7.6E‐07 1.29E‐04 6.2E‐06 1.0E‐05
1st '03 21‐Mar‐03 9.10E‐06 1.3E‐06 3.6E‐07 1.13E‐05 1.6E‐06 3.4E‐06
2nd '03 10‐Jun‐03 2.50E‐05 1.3E‐06 3.6E‐07 3.26E‐06 2.0E‐06 7.4E‐08
4th '03 20‐Nov‐03 5.70E‐05 3.5E‐06 1.5E‐07 4.05E‐05 5.8E‐06 8.3E‐07
1st '04 08‐Apr‐04 9.38E‐05 3.7E‐06 1.1E‐07 5.88E‐05 3.0E‐06 5.5E‐07
2nd '04 12‐Jun‐04 5.63E‐05 3.4E‐06 1.8E‐07 6.42E‐05 5.9E‐06 9.0E‐07
4th '04 30‐Nov‐04 8.41E‐05 5.50E‐06 2.00E‐08 2.48E‐04 1.40E‐05 3.00E‐07
1st '05 21‐Apr‐05 5.60E‐05 3.00E‐06 1.40E‐07 5.80E‐05 4.00E‐06 6.90E‐07
2nd '05 13‐Jun‐05 9.10E‐06 1.50E‐06 1.80E‐07 1.10E‐05 1.20E‐05 9.00E‐07
4th '05 10‐Nov‐05 6.00E‐05 3.00E‐06 1.10E‐10 1.70E‐06 6.40E‐07 5.50E‐10
1st '06 03‐Apr‐06 8.00E‐05 5.00E‐06 5.00E‐08 3.40E‐04 1.20E‐05 1.00E‐06
2nd '06 16‐Jun‐06 4.10E‐05 3.10E‐06 5.00E‐08 1.16E‐04 6.10E‐06 1.00E‐06
4th '06 28‐Nov‐06 1.17E‐04 4.60E‐06 1.90E‐07 3.28E‐04 9.50E‐06 9.50E‐07
1st '07 30‐Mar‐07 9.70E‐05 4.40E‐06 1.90E‐07 3.40E‐04 8.70E‐06 8.4‐07
2nd '07 1‐Jun‐07 1.30E‐05 1.60E‐06 1.90E‐07 1.20E‐04 6.60E‐06 9.70E‐07
4th '07 23‐Nov‐07 7.00E‐05 8.20E‐06 2.00E‐07 5.00E‐04 2.00E‐05 1.20E‐06
1st '08 22‐Apr‐08 3.6E‐06 3.00E‐06 5.20E‐07 2.3E‐04 1.40E‐05 1.00E‐06
2nd '08 18‐Jun‐08 3.2E‐05 3.20E‐06 1.80E‐06 6.9E‐05 3.50E‐05 5.50E‐05
4th '08 12‐Dec‐08
1st '09 28‐Apr‐09 5.9E‐04 1.35E‐05 1.50E‐06 3.4E‐04 1.30E‐05 1.50E‐06
2nd '09 17‐Jun‐09 1.9E‐05 1.45E‐06 4.90E‐07 3.6E‐05 1.10E‐05 1.80E‐05
4th '09 18‐Dec‐09 1.7E‐04 5.90E‐06 4.8E‐04 1.20E‐05
1st '10 13‐May‐10 2.2E‐04 7.20E‐06 1.10E‐06 1.9E‐04 1.90E‐05 2.90E‐05
2nd '10 18‐Jun‐10 6.5E‐05 3.40E‐06 7.60E‐07 1.4E‐04 1.90E‐05 2.90E‐05
  *2nd quarter of 1996 San Juan County, Utah, was declared a disaster area due to drought, no samples were  collected during this period
WHITE MESA MILL
FORAGE RADIONUCLIDE DATA
NORTHWEST OF MILL
SAMPLED QTR. SAMPLED DATE Ra‐226 Ra‐226 LLD Pb‐210 Pb‐210 LLD
VALUE (uCi/Kg) ERROR (uCi/Kg) uCi/Kg (5.0E‐08) VALUE (uCi/Kg) ERROR (uCi/Kg) uCi/Kg (1.0E‐06)
3rd '81 27‐Aug‐81 2.73E‐03 5.0E‐05 5.0E‐08 7.10E‐03 3.0E‐04 1.0E‐06
4th '81 20‐Oct‐81 2.00E‐04 1.0E‐05 5.0E‐08 8.30E‐04 5.0E‐05 1.0E‐06
2nd '82 15‐Apr‐82 1.04E‐04 9.0E‐06 7.0E‐06 6.40E‐04 5.0E‐05 4.0E‐05
3rd '82 01‐Jul‐82 2.00E‐05 1.0E‐05 5.0E‐08 2.20E‐04 9.0E‐05 1.0E‐07
4th '82 30‐Nov‐82 2.36E‐06 9.5E‐07 1.0E‐06 8.00E‐05 1.0E‐05 1.0E‐05
2nd '83 13‐Apr‐83 8.58E‐05 1.4E‐05 2.0E‐08 3.53E‐04 1.9E‐05 1.0E‐05
3rd '83 01‐Jul‐83 1.19E‐04 1.1E‐05 5.0E‐06 1.58E‐04 1.3E‐05 1.0E‐05
4th '83 30‐Jan‐84 9.78E‐05 7.0E‐06 2.0E‐06 2.16E‐03 3.4E‐04 3.0E‐04
2nd '84 28‐Jun‐84 2.08E‐04 1.0E‐05 3.0E‐09 1.60E‐03 7.0E‐05 3.0E‐08
4th '84 14‐Nov‐84 6.05E‐04 1.6E‐04 2.0E‐07 2.58E‐03 1.1E‐04 3.0E‐08
2nd '85 27‐Mar‐85 1.10E‐04 8.0E‐06 3.0E‐06 8.63E‐04 4.2E‐05 3.0E‐05
3rd '85 15‐Jul‐85 6.10E‐05 6.0E‐06 2.0E‐06 5.40E‐04 5.0E‐05 5.0E‐05
4th '85 09‐Oct‐85 1.07E‐04 6.0E‐06 2.0E‐06 3.80E‐04 3.0E‐05 2.0E‐05
2nd '86 24‐Mar‐86 8.86E‐04 1.8E‐05 2.0E‐06 4.40E‐03 1.9E‐04 3.0E‐05
3rd '86 10‐Jul‐86 6.66E‐04 1.8E‐05 3.0E‐06 4.78E‐03 2.1E‐04 6.0E‐05
4th '86 18‐Dec‐86 5.20E‐04 1.0E‐04 3.0E‐06 1.70E‐03 1.0E‐04 6.0E‐05
2nd '87 20‐Apr‐87 4.10E‐04 1.0E‐04 5.0E‐08 1.60E‐03 1.0E‐04 1.0E‐06
3rd '87 05‐Jun‐87 1.60E‐04 3.0E‐05 5.0E‐08 5.50E‐04 4.0E‐05 1.0E‐06
4th '87 22‐Dec‐87 3.60E‐04 5.0E‐05 5.0E‐08 1.80E‐03 1.0E‐04 1.0E‐06
2nd '88 19‐Apr‐88 2.60E‐04 5.0E‐05 5.0E‐08 1.90E‐03 1.0E‐04 1.0E‐06
3rd '88 28‐Jul‐88 3.10E‐05 1.9E‐05 5.0E‐08 1.60E‐04 4.0E‐05 1.0E‐06
 2nd '89 07‐Apr‐89 6.20E‐04 5.0E‐05 *** 1.70E‐03 1.0E‐04 ***
 3rd '89 06‐Jun‐89 3.40E‐04 3.0E‐05 *** 7.40E‐04 3.0E‐05 ***
 4th '89 07‐Nov‐89 5.10E‐04 6.0E‐05 7.0E‐06 1.00E‐03 7.0E‐05 1.4E‐05
 1st '90 17‐Apr‐90 3.60E‐04 3.0E‐05 4.0E‐06 4.80E‐04 2.0E‐05 2.2E‐05
 2nd '90 20‐Jun‐90 1.70E‐04 2.0E‐05 5.0E‐08 3.20E‐04 2.0E‐05 1.0E‐06
 3rd '90 17‐Oct‐90 8.80E‐05 1.6E‐05 5.0E‐08 2.90E‐04 2.0E‐05 1.0E‐06
 1st '91 10‐Apr‐91 3.00E‐04 3.0E‐05 5.0E‐06 4.10E‐04 2.0E‐05 1.0E‐06
 2nd '91 11‐Jun‐91 3.10E‐04 3.0E‐05 2.0E‐07 4.70E‐04 2.0E‐05 2.0E‐07
 3rd '91 20‐Nov‐91 5.00E‐04 4.0E‐05 5.0E‐08 1.50E‐03 1.0E‐04 1.0E‐06
 1st '92 22‐Apr‐92 2.00E‐05 8.0E‐06 2.0E‐06 9.60E‐05 1.4E‐05 1.0E‐05
 2nd '92 10‐Jun‐92 6.50E‐06 6.0E‐06 2.0E‐06 1.20E‐04 2.0E‐05 1.0E‐06
 3rd '92 10‐Jun‐92 1.20E‐04 4.0E‐05 3.0E‐06 1.21E‐03 8.0E‐05 2.0E‐05
 1st '93 13‐Apr‐93 1.80E‐05 1.7E‐05 3.0E‐06 2.10E‐04 3.0E‐05 2.0E‐05
 2nd '93 26‐Jun‐93 5.20E‐05 1.9E‐05 3.0E‐06 1.70E‐05 3.6E‐05 2.0E‐05
 3rd '93 12‐Oct‐93 5.10E‐05 2.3E‐05 3.0E‐06 7.10E‐04 6.0E‐05 2.0E‐05
 1st '94 11‐May‐94 1.20E‐04 1.0E‐05 3.0E‐05 9.80E‐04 1.6E‐04 2.0E‐04
 2nd '94 19‐Jul‐94 3.73E‐05 1.6E‐06 8.4E‐08 7.80E‐05 7.1E‐06 4.2E‐07
 3rd '94 28‐Nov‐94 2.40E‐04 1.5E‐05 1.7E‐07 2.60E‐04 1.3E‐05 8.3E‐07
 1st '95 11‐Apr‐95 8.40E‐05 6.1E‐06 1.5E‐07 1.20E‐04 1.1E‐05 7.5E‐05
 2nd '95 06‐Jul‐95 1.90E‐05 1.5E‐06 1.4E‐07 4.50E‐05 4.3E‐06 7.2E‐07
3rd  '95 15‐Nov‐95 1.20E‐04 6.8E‐06 1.4E‐07 1.00E‐05 5.8E‐06 7.1E‐07
1st  '96 23‐Apr‐96 8.30E‐05 3.3E‐06 1.9E‐07 6.80E‐05 6.3E‐06 1.8E‐07
2nd '96 *31‐Jul‐96
3rd '96 14‐Nov‐96 3.60E‐05 2.5E‐06 1.6E‐07 8.50E‐05 5.6E‐06 8.4E‐07
1st '97 21‐Apr‐97 3.30E‐05 2.3E‐06 1.7E‐07 4.40E‐05 4.8E‐06 8.4E‐07
3rd '97 05‐Sep‐97 5.40E‐06 3.5E‐07 1.6E‐07 3.20E‐05 9.0E‐07 7.8E‐07
4th '97 20‐Nov‐97 8.90E‐06 7.2E‐07 5.4E‐07 3.40E‐04 6.7E‐06 1.1E‐07
1st '98 23‐Mar‐98 <9.20E‐05 9.2E‐05 9.2E‐05 <4.60E‐04 4.6E‐04 4.6E‐04
2nd '98 16‐Jun‐98 < 6.50E‐08 6.5E‐08 6.5E‐08 <3.20E‐07 3.2E‐07 3.2E‐07
4th '98 05‐Nov‐98 4.20E‐05 1.0E‐06 1.1E‐07 1.70E‐04 1.0E‐05 5.5E‐07
2nd '99 15‐Apr‐99 6.20E‐05 1.0E‐06 1.0E‐07 1.40E‐04 7.0E‐06 1.0E‐07
3rd '99 07‐Jul‐99 5.45E‐05 1.4E‐06 8.3E‐08 9.20E‐05 4.0E‐06 4.2E‐07
4th '99 02‐Dec‐99 1.10E‐04 3.0E‐06 2.2E‐07 2.80E‐05 1.0E‐06 1.1E‐06
2nd '00 21‐Apr‐00 3.70E‐05 1.0E‐06 2.4E‐07 2.70E‐04 1.0E‐05 1.2E‐06
2nd '00 22‐Jun‐00 2.90E‐05 1.0E‐06 3.3E‐07 2.80E‐04 2.0E‐05 1.7E‐06
4th '00 21‐Dec‐00 2.30E‐06 1.4E‐06 3.7E‐07 3.30E‐04 5.0E‐05 1.9E‐06
1st '01 30‐Apr‐01 2.10E‐05 1.0E‐06 1.5E‐07 <7.6E‐07 N/A 7.6E‐07
2nd '01 14‐Jun‐01 1.30E‐06 4.0E‐08 1.2E‐07 1.80E‐06 3.0E‐08 5.9E‐07
4th '01 17‐Dec‐01 3.70E‐05 7.67E‐07 8.30E‐08 6.72E‐05 2.62E‐06 6.00E‐07
1st '02 07‐May‐02 4.90E‐05 2.40E‐06 7.60E‐07 1.28E‐04 5.61E‐06 1.00E‐05
2nd '02 07‐Jul‐02 8.88E‐05 4.32E‐06 7.60E‐07 8.33E‐05 4.32E‐06 1.00E‐05
4th '02 15‐Dec‐02 1.50E‐04 6.2E‐06 7.60E‐07 3.16E‐04 1.07E‐05 1.0E‐05
1st '03 21‐Mar‐03 5.00E‐05 3.4E‐06 2.71E‐06 <4.2e‐6 4.20E‐06
2nd '03 10‐Jun‐03 5.60E‐05 2.0E‐06 4.10E‐07 1.88E‐04 5.14E‐06 8.2E‐08
4th '03 20‐Nov‐03 3.20E‐04 8.2E‐06 1.70E‐07 4.89E‐04 1.25E‐05 8.3E‐07
1st '04 08‐Apr‐04 6.29E‐05 4.1E‐06 2.00E‐07 1.94E‐05 4.00E‐06 1.0E‐06
2nd '04 12‐Jun‐04 6.51E‐05 3.4E‐06 1.30E‐07 1.87E‐05 3.90E‐06 6.5E‐07
4th '04 30‐Nov‐04 7.50E‐05 4.6E‐06 2.0E‐08 4.45E‐04 1.40E‐05 3.0E‐07
1st '05 21‐Apr‐05 4.90E‐05 2.70E‐06 1.30E‐07 1.27E‐04 4.80E‐06 6.50E‐07
2nd '05 13‐Jun‐05 2.30E‐05 2.10E‐06 1.50E‐07 4.70E‐05 5.10E‐06 7.60E‐07
4th '05 10‐Nov‐05 7.40E‐05 3.50E‐06 1.20E‐10 2.40E‐06 8.10E‐08 5.80E‐10
1st '06 03‐Apr‐06 1.00E‐04 6.00E‐06 5.00E‐08 6.54E‐04 1.50E‐05 1.00E‐06
2nd '06 16‐Jun‐06 9.50E‐05 5.90E‐06 5.00E‐08 4.48E‐04 1.40E‐05 1.00E‐06
4th '06 28‐Nov‐06 8.13E‐05 4.10E‐06 2.20E‐07 3.25E‐04 1.12E‐06 1.00E‐05
1st '07 30‐Mar‐07 4.30E‐05 2.60E‐06 1.70E‐07 2.64E‐04 7.20E‐06 8.60E‐07
2nd '07 1‐Jun‐07 5.10E‐05 3.20E‐06 2.30E‐07 5.30E‐04 1.40E‐06 1.20E‐06
4th '07 23‐Nov‐07 7.30E‐05 6.6E‐06 5.0E‐08 7.00E‐04 2.20E‐05 1.10E‐06
1st '08 22‐Apr‐08 2.8E‐06 2.8E‐06 7.20E‐07 4.40E‐04 2.0E‐05 1.0E‐06
2nd '08 18‐Jun‐08 3.2E‐06 3.3E‐06 1.80E‐06 1.40E‐04 3.3E‐05 5.5E‐05
4th '08 12‐Dec‐08 7.3E‐05 3.2E‐06 7.40E‐07 4.40E‐04 2.5E‐05 3.2E‐05
1st '09 28‐Apr‐09 5.3E‐05 3.6E‐06 1.10E‐06 1.90E‐04 1.5E‐05 2.2E‐05
2nd '09 17‐Jun‐09 2.3E‐05 1.6E‐05 5.2E‐07 4.30E‐05 1.00E‐05 1.7E‐05
4th '09 18‐Dec‐09 5.50E‐05 3.50E‐06 3.0E‐04 1.10E‐05
1st '10 13‐May‐10 1.9E‐04 6.10E‐06 9.40E‐07 5.1E‐04 2.40E‐05 3.10E‐05
2nd '10 18‐Jun‐10 2.3E‐05 2.00E‐06 7.70E‐07 8.3E‐05 1.80E‐05 2.90E‐05
  *2nd quarter of 1996 San Juan County, Utah, was declared a disaster area due to drought, no samples were  collected during this period
WHITE MESA MILL
FORAGE RADIONUCLIDE DATA
NORTHEAST OF MILL
SAMPLED QTR. SAMPLED DATE Ra‐226 Ra‐226 LLD Pb‐210 Pb‐210 LLD
VALUE (uCi/Kg) ERROR (uCi/Kg) uCi/Kg (5.0E‐08) VALUE (uCi/Kg) ERROR (uCi/Kg) uCi/Kg (1.0E‐06)
3rd '81 27‐Aug‐81 3.90E‐04 1.0E‐05 5.0E‐08 1.10E‐03 1.0E‐04 1.0E‐06
4th '81 20‐Oct‐81 1.40E‐04 1.0E‐05 5.0E‐08 6.80E‐04 8.0E‐05 1.0E‐06
2nd '82 15‐Apr‐82 1.31E‐04 1.3E‐05 1.0E‐06 4.90E‐04 7.0E‐05 8.0E‐05
3rd '82 01‐Jul‐82 1.60E‐04 1.0E‐05 5.0E‐08 8.00E‐04 1.7E‐04 1.0E‐07
4th '82 30‐Nov‐82 2.67E‐06 1.1E‐06 1.0E‐06 1.08E‐04 9.0E‐06 1.0E‐05
2nd '83 13‐Apr‐83 9.36E‐05 6.2E‐06 8.0E‐09 4.97E‐04 9.3E‐05 1.0E‐04
3rd '83 01‐Jul‐83 1.12E‐04 1.2E‐05 6.0E‐06 1.84E‐04 1.2E‐05 1.0E‐06
4th '83 30‐Jan‐84 1.09E‐04 8.0E‐06 4.0E‐06 7.80E‐04 6.2E‐05 6.0E‐05
2nd '84 28‐Jun‐84 3.47E‐04 1.2E‐05 2.0E‐09 3.75E‐03 1.6E‐04 4.0E‐08
4th '84 14‐Nov‐84 5.61E‐04 2.0E‐04 2.0E‐07 7.82E‐03 3.3E‐04 7.0E‐08
2nd '85 27‐Mar‐85 1.05E‐03 3.0E‐05 2.0E‐06 3.22E‐03 1.4E‐04 2.0E‐05
3rd '85 15‐Jul‐85 8.20E‐05 7.0E‐06 3.0E‐06 7.70E‐04 1.3E‐04 2.0E‐04
4th '85 09‐Oct‐85 1.15E‐04 1.0E‐05 3.0E‐06 5.10E‐04 3.0E‐05 2.0E‐05
2nd '86 24‐Mar‐86 5.72E‐04 2.1E‐05 4.0E‐06 2.49E‐03 1.0E‐04 1.0E‐05
3rd '86 10‐Jul‐86 5.01E‐04 1.3E‐05 3.0E‐06 1.57E‐03 1.7E‐03 2.0E‐04
4th '86 18‐Dec‐86 8.70E‐04 5.0E‐05 3.0E‐06 6.80E‐04 3.0E‐05 3.0E‐06
2nd '87 20‐Apr‐87 5.90E‐04 7.0E‐05 5.0E‐08 1.50E‐03 1.0E‐04 1.0E‐06
3rd '87 05‐Jun‐87 1.60E‐04 3.0E‐05 5.0E‐08 9.50E‐04 4.0E‐05 1.0E‐06
4th '87 22‐Dec‐87 2.10E‐04 4.0E‐05 5.0E‐08 1.70E‐03 1.0E‐04 1.0E‐06
2nd '88 19‐Apr‐88 4.50E‐04 7.0E‐05 5.0E‐08 1.40E‐03 1.0E‐04 1.0E‐06
3rd '88 28‐Jul‐88 3.20E‐05 2.2E‐05 5.0E‐08 1.50E‐04 4.4E‐04 1.0E‐06
 2nd '89 07‐Apr‐89 5.60E‐04 4.0E‐05 *** 1.10E‐03 1.0E‐01 ***
 3rd '89 06‐Jun‐89 1.50E‐04 2.0E‐05 *** 2.30E‐04 2.0E‐05 ***
 4th '89 07‐Nov‐89 6.00E‐04 5.0E‐05 7.0E‐06 2.04E‐03 7.0E‐05 1.4E‐05
 1st '90 17‐Apr‐90 2.60E‐04 3.0E‐05 4.0E‐06 3.30E‐04 2.0E‐05 2.2E‐05
 2nd '90 20‐Jun‐90 1.80E‐04 2.0E‐05 5.0E‐08 3.20E‐04 2.0E‐05 1.0E‐06
 3rd '90 17‐Oct‐90 1.60E‐04 2.0E‐05 5.0E‐08 3.30E‐04 2.0E‐05 1.0E‐06
 1st '91 10‐Apr‐91 1.20E‐04 2.0E‐05 5.0E‐06 3.00E‐04 2.0E‐05 1.0E‐06
 2nd '91 11‐Jun‐91 9.10E‐05 1.6E‐05 2.0E‐07 1.90E‐04 2.0E‐05 2.0E‐07
 3rd '91 20‐Nov‐91 4.50E‐04 4.0E‐05 5.0E‐08 1.09E‐03 5.0E‐05 1.0E‐06
 1st '92 22‐Apr‐92 3.60E‐05 1.0E‐05 2.0E‐06 1.50E‐04 2.0E‐05 1.0E‐05
 2nd '92 10‐Jun‐92 1.00E‐05 7.0E‐06 2.0E‐07 7.50E‐05 2.0E‐05 1.0E‐06
 3rd '92 10‐Jun‐92 7.90E‐05 3.5E‐05 3.0E‐06 7.10E‐04 7.0E‐05 2.0E‐05
 1st '93 13‐Apr‐93 3.70E‐05 2.2E‐05 3.0E‐06 2.80E‐04 3.0E‐05 2.0E‐05
 2nd '93 26‐Jun‐93 3.00E‐05 1.5E‐05 3.0E‐06 4.30E‐05 3.5E‐05 2.0E‐05
 3rd '93 12‐Oct‐93 6.60E‐05 2.7E‐05 3.0E‐06 5.30E‐04 6.0E‐05 2.0E‐05
 1st '94 11‐May‐94 1.80E‐04 4.0E‐05 3.0E‐05 4.40E‐04 6.0E‐05 2.0E‐04
 2nd '94 19‐Jul‐94 1.71E‐05 1.2E‐06 9.0E‐08 3.00E‐05 6.1E‐06 4.5E‐06
 3rd '94 28‐Nov‐94 2.40E‐04 1.5E‐05 1.7E‐07 1.70E‐04 1.1E‐05 8.3E‐07
 1st '95 11‐Apr‐95 6.70E‐05 5.4E‐06 1.6E‐07 1.40E‐04 1.3E‐05 7.9E‐07
 2nd '95 06‐Jul‐95 1.50E‐05 1.5E‐06 1.5E‐07 5.10E‐05 4.5E‐06 7.6E‐07
3rd  '95 15‐Nov‐95 5.50E‐05 5.0E‐06 1.8E‐07 6.70E‐05 1.0E‐05 8.8E‐07
1st  '96 23‐Apr‐96 5.20E‐05 2.5E‐06 1.5E‐07 3.20E‐05 4.5E‐06 1.8E‐07
2nd '96 *31‐Jul‐96
3rd '96 14‐Nov‐96 3.00E‐05 2.5E‐06 1.8E‐07 1.40E‐04 7.1E‐06 9.3E‐07
1st '97 21‐Apr‐97 1.10E‐05 4.7E‐07 1.2E‐07 4.10E‐05 3.6E‐06 6.1E‐07
3rd '97 05‐Sep‐97 1.10E‐05 4.3E‐07 1.3E‐07 2.10E‐05 7.3E‐07 6.7E‐07
4th '97 20‐Nov‐97 8.00E‐06 1.2E‐06 5.6E‐07 1.40E‐04 4.6E‐06 1.1E‐07
1st '98 23‐Mar‐98 <9.10E‐05 9.1E‐05 9.1E‐05 <4.50E‐04 4.5E‐04 4.5E‐04
2nd '98 16‐Jun‐98 1.80E‐05 1.2E‐06 6.3E‐08 4.00E‐05 1.8E‐06 3.2E‐07
4th '98 05‐Nov‐98 5.70E‐05 1.0E‐06 8.2E‐08 8.70E‐05 5.0E‐06 4.1E‐07
2nd '99 15‐Apr‐99 2.00E‐04 3.0E‐06 1.2E‐07 3.00E‐04 1.0E‐05 6.0E‐05
3rd '99 07‐Jul‐99 6.03E‐05 1.4E‐06 8.3E‐08 1.40E‐04 4.7E‐06 4.2E‐07
4th '99 02‐Dec‐99 2.30E‐05 1.0E‐06 2.3E‐07 2.10E‐05 1.0E‐06 1.1E‐06
2nd '00 21‐Apr‐00 1.50E‐04 3.0E‐06 1.2E‐07 1.60E‐04 8.0E‐06 5.9E‐07
2nd '00 22‐Jun‐00 1.20E‐06 1.0E‐07 2.8E‐07 1.60E‐04 1.0E‐05 1.4E‐06
4th '00 21‐Dec‐00 1.60E‐06 1.1E‐06 3.7E‐07 5.10E‐05 5.0E‐06 1.9E‐06
1st '01 30‐Apr‐01 1.00E‐06 1.0E‐07 2.4E‐07 <1.2E‐06 1.0E‐07 2.4E‐07
2nd '01 14‐Jun‐01 2.30E‐06 2.0E‐07 9.9E‐08 3.80E‐06 2.0E‐07 5.0E‐07
4th '01 17‐Dec‐01 9.10E‐06 2.4E‐06 1.2E‐07 3.57E‐05 3.0E‐06 6.0E‐07
1st '02 07‐May‐02 3.30E‐05 1.8E‐06 7.6E‐07 4.50E‐05 2.6E‐06 1.0E‐05
2nd '02 07‐Jul‐02 5.55E‐05 2.8E‐06 7.6E‐07 5.31E‐05 3.9E‐06 1.0E‐05
4th '02 15‐Dec‐02 7.75E‐05 3.6E‐06 7.6E‐07 1.29E‐04 6.2E‐06 1.0E‐05
1st '03 21‐Mar‐03 9.10E‐06 1.3E‐06 3.6E‐07 1.13E‐05 1.6E‐06 3.4E‐06
2nd '03 10‐Jun‐03 2.50E‐05 1.3E‐06 3.6E‐07 3.26E‐06 2.0E‐06 7.4E‐08
4th '03 20‐Nov‐03 5.70E‐05 3.5E‐06 1.5E‐07 4.05E‐05 5.8E‐06 8.3E‐07
1st '04 08‐Apr‐04 9.38E‐05 3.7E‐06 1.1E‐07 5.88E‐05 3.0E‐06 5.5E‐07
2nd '04 12‐Jun‐04 5.63E‐05 3.4E‐06 1.8E‐07 6.42E‐05 5.9E‐06 9.0E‐07
4th '04 30‐Nov‐04 8.41E‐05 5.50E‐06 2.00E‐08 2.48E‐04 1.40E‐05 3.00E‐07
1st '05 21‐Apr‐05 5.60E‐05 3.00E‐06 1.40E‐07 5.80E‐05 4.00E‐06 6.90E‐07
2nd '05 13‐Jun‐05 9.10E‐06 1.50E‐06 1.80E‐07 1.10E‐05 1.20E‐05 9.00E‐07
4th '05 10‐Nov‐05 6.00E‐05 3.00E‐06 1.10E‐10 1.70E‐06 6.40E‐07 5.50E‐10
1st '06 03‐Apr‐06 8.00E‐05 5.00E‐06 5.00E‐08 3.40E‐04 1.20E‐05 1.00E‐06
2nd '06 16‐Jun‐06 4.10E‐05 3.10E‐06 5.00E‐08 1.16E‐04 6.10E‐06 1.00E‐06
4th '06 28‐Nov‐06 1.17E‐04 4.60E‐06 1.90E‐07 3.28E‐04 9.50E‐06 9.50E‐07
1st '07 30‐Mar‐07 9.70E‐05 4.40E‐06 1.90E‐07 3.40E‐04 8.70E‐06 8.4‐07
2nd '07 1‐Jun‐07 1.30E‐05 1.60E‐06 1.90E‐07 1.20E‐04 6.60E‐06 9.70E‐07
4th '07 23‐Nov‐07 7.00E‐05 8.20E‐06 2.00E‐07 5.00E‐04 2.00E‐05 1.20E‐06
1st '08 22‐Apr‐08 3.6E‐06 3.00E‐06 5.20E‐07 2.3E‐04 1.40E‐05 1.00E‐06
2nd '08 18‐Jun‐08 3.2E‐05 3.20E‐06 1.80E‐06 6.9E‐05 3.50E‐05 5.50E‐05
4th '08 12‐Dec‐08
1st '09 28‐Apr‐09 5.9E‐04 1.35E‐05 1.50E‐06 3.4E‐04 1.30E‐05 1.50E‐06
2nd '09 17‐Jun‐09 1.9E‐05 1.45E‐06 4.90E‐07 3.6E‐05 1.10E‐05 1.80E‐05
4th '09 18‐Dec‐09 1.7E‐04 5.90E‐06 4.8E‐04 1.20E‐05
1st '10 13‐May‐10 2.2E‐04 7.20E‐06 1.10E‐06 1.9E‐04 1.90E‐05 2.90E‐05
2nd '10 18‐Jun‐10 6.5E‐05 3.40E‐06 7.60E‐07 1.4E‐04 1.90E‐05 2.90E‐05
  *2nd quarter of 1996 San Juan County, Utah, was declared a disaster area due to drought, no samples were  collected during this period
WHITE MESA MILL
FORAGE RADIONUCLIDE DATA
NORTHWEST OF MILL
SAMPLED QTR. SAMPLED DATE Ra‐226 Ra‐226 LLD Pb‐210 Pb‐210 LLD
VALUE (uCi/Kg) ERROR (uCi/Kg) uCi/Kg (5.0E‐08) VALUE (uCi/Kg) ERROR (uCi/Kg) uCi/Kg (1.0E‐06)
3rd '81 27‐Aug‐81 2.73E‐03 5.0E‐05 5.0E‐08 7.10E‐03 3.0E‐04 1.0E‐06
4th '81 20‐Oct‐81 2.00E‐04 1.0E‐05 5.0E‐08 8.30E‐04 5.0E‐05 1.0E‐06
2nd '82 15‐Apr‐82 1.04E‐04 9.0E‐06 7.0E‐06 6.40E‐04 5.0E‐05 4.0E‐05
3rd '82 01‐Jul‐82 2.00E‐05 1.0E‐05 5.0E‐08 2.20E‐04 9.0E‐05 1.0E‐07
4th '82 30‐Nov‐82 2.36E‐06 9.5E‐07 1.0E‐06 8.00E‐05 1.0E‐05 1.0E‐05
2nd '83 13‐Apr‐83 8.58E‐05 1.4E‐05 2.0E‐08 3.53E‐04 1.9E‐05 1.0E‐05
3rd '83 01‐Jul‐83 1.19E‐04 1.1E‐05 5.0E‐06 1.58E‐04 1.3E‐05 1.0E‐05
4th '83 30‐Jan‐84 9.78E‐05 7.0E‐06 2.0E‐06 2.16E‐03 3.4E‐04 3.0E‐04
2nd '84 28‐Jun‐84 2.08E‐04 1.0E‐05 3.0E‐09 1.60E‐03 7.0E‐05 3.0E‐08
4th '84 14‐Nov‐84 6.05E‐04 1.6E‐04 2.0E‐07 2.58E‐03 1.1E‐04 3.0E‐08
2nd '85 27‐Mar‐85 1.10E‐04 8.0E‐06 3.0E‐06 8.63E‐04 4.2E‐05 3.0E‐05
3rd '85 15‐Jul‐85 6.10E‐05 6.0E‐06 2.0E‐06 5.40E‐04 5.0E‐05 5.0E‐05
4th '85 09‐Oct‐85 1.07E‐04 6.0E‐06 2.0E‐06 3.80E‐04 3.0E‐05 2.0E‐05
2nd '86 24‐Mar‐86 8.86E‐04 1.8E‐05 2.0E‐06 4.40E‐03 1.9E‐04 3.0E‐05
3rd '86 10‐Jul‐86 6.66E‐04 1.8E‐05 3.0E‐06 4.78E‐03 2.1E‐04 6.0E‐05
4th '86 18‐Dec‐86 5.20E‐04 1.0E‐04 3.0E‐06 1.70E‐03 1.0E‐04 6.0E‐05
2nd '87 20‐Apr‐87 4.10E‐04 1.0E‐04 5.0E‐08 1.60E‐03 1.0E‐04 1.0E‐06
3rd '87 05‐Jun‐87 1.60E‐04 3.0E‐05 5.0E‐08 5.50E‐04 4.0E‐05 1.0E‐06
4th '87 22‐Dec‐87 3.60E‐04 5.0E‐05 5.0E‐08 1.80E‐03 1.0E‐04 1.0E‐06
2nd '88 19‐Apr‐88 2.60E‐04 5.0E‐05 5.0E‐08 1.90E‐03 1.0E‐04 1.0E‐06
3rd '88 28‐Jul‐88 3.10E‐05 1.9E‐05 5.0E‐08 1.60E‐04 4.0E‐05 1.0E‐06
 2nd '89 07‐Apr‐89 6.20E‐04 5.0E‐05 *** 1.70E‐03 1.0E‐04 ***
 3rd '89 06‐Jun‐89 3.40E‐04 3.0E‐05 *** 7.40E‐04 3.0E‐05 ***
 4th '89 07‐Nov‐89 5.10E‐04 6.0E‐05 7.0E‐06 1.00E‐03 7.0E‐05 1.4E‐05
 1st '90 17‐Apr‐90 3.60E‐04 3.0E‐05 4.0E‐06 4.80E‐04 2.0E‐05 2.2E‐05
 2nd '90 20‐Jun‐90 1.70E‐04 2.0E‐05 5.0E‐08 3.20E‐04 2.0E‐05 1.0E‐06
 3rd '90 17‐Oct‐90 8.80E‐05 1.6E‐05 5.0E‐08 2.90E‐04 2.0E‐05 1.0E‐06
 1st '91 10‐Apr‐91 3.00E‐04 3.0E‐05 5.0E‐06 4.10E‐04 2.0E‐05 1.0E‐06
 2nd '91 11‐Jun‐91 3.10E‐04 3.0E‐05 2.0E‐07 4.70E‐04 2.0E‐05 2.0E‐07
 3rd '91 20‐Nov‐91 5.00E‐04 4.0E‐05 5.0E‐08 1.50E‐03 1.0E‐04 1.0E‐06
 1st '92 22‐Apr‐92 2.00E‐05 8.0E‐06 2.0E‐06 9.60E‐05 1.4E‐05 1.0E‐05
 2nd '92 10‐Jun‐92 6.50E‐06 6.0E‐06 2.0E‐06 1.20E‐04 2.0E‐05 1.0E‐06
 3rd '92 10‐Jun‐92 1.20E‐04 4.0E‐05 3.0E‐06 1.21E‐03 8.0E‐05 2.0E‐05
 1st '93 13‐Apr‐93 1.80E‐05 1.7E‐05 3.0E‐06 2.10E‐04 3.0E‐05 2.0E‐05
 2nd '93 26‐Jun‐93 5.20E‐05 1.9E‐05 3.0E‐06 1.70E‐05 3.6E‐05 2.0E‐05
 3rd '93 12‐Oct‐93 5.10E‐05 2.3E‐05 3.0E‐06 7.10E‐04 6.0E‐05 2.0E‐05
 1st '94 11‐May‐94 1.20E‐04 1.0E‐05 3.0E‐05 9.80E‐04 1.6E‐04 2.0E‐04
 2nd '94 19‐Jul‐94 3.73E‐05 1.6E‐06 8.4E‐08 7.80E‐05 7.1E‐06 4.2E‐07
 3rd '94 28‐Nov‐94 2.40E‐04 1.5E‐05 1.7E‐07 2.60E‐04 1.3E‐05 8.3E‐07
 1st '95 11‐Apr‐95 8.40E‐05 6.1E‐06 1.5E‐07 1.20E‐04 1.1E‐05 7.5E‐05
 2nd '95 06‐Jul‐95 1.90E‐05 1.5E‐06 1.4E‐07 4.50E‐05 4.3E‐06 7.2E‐07
3rd  '95 15‐Nov‐95 1.20E‐04 6.8E‐06 1.4E‐07 1.00E‐05 5.8E‐06 7.1E‐07
1st  '96 23‐Apr‐96 8.30E‐05 3.3E‐06 1.9E‐07 6.80E‐05 6.3E‐06 1.8E‐07
2nd '96 *31‐Jul‐96
3rd '96 14‐Nov‐96 3.60E‐05 2.5E‐06 1.6E‐07 8.50E‐05 5.6E‐06 8.4E‐07
1st '97 21‐Apr‐97 3.30E‐05 2.3E‐06 1.7E‐07 4.40E‐05 4.8E‐06 8.4E‐07
3rd '97 05‐Sep‐97 5.40E‐06 3.5E‐07 1.6E‐07 3.20E‐05 9.0E‐07 7.8E‐07
4th '97 20‐Nov‐97 8.90E‐06 7.2E‐07 5.4E‐07 3.40E‐04 6.7E‐06 1.1E‐07
1st '98 23‐Mar‐98 <9.20E‐05 9.2E‐05 9.2E‐05 <4.60E‐04 4.6E‐04 4.6E‐04
2nd '98 16‐Jun‐98 < 6.50E‐08 6.5E‐08 6.5E‐08 <3.20E‐07 3.2E‐07 3.2E‐07
4th '98 05‐Nov‐98 4.20E‐05 1.0E‐06 1.1E‐07 1.70E‐04 1.0E‐05 5.5E‐07
2nd '99 15‐Apr‐99 6.20E‐05 1.0E‐06 1.0E‐07 1.40E‐04 7.0E‐06 1.0E‐07
3rd '99 07‐Jul‐99 5.45E‐05 1.4E‐06 8.3E‐08 9.20E‐05 4.0E‐06 4.2E‐07
4th '99 02‐Dec‐99 1.10E‐04 3.0E‐06 2.2E‐07 2.80E‐05 1.0E‐06 1.1E‐06
2nd '00 21‐Apr‐00 3.70E‐05 1.0E‐06 2.4E‐07 2.70E‐04 1.0E‐05 1.2E‐06
2nd '00 22‐Jun‐00 2.90E‐05 1.0E‐06 3.3E‐07 2.80E‐04 2.0E‐05 1.7E‐06
4th '00 21‐Dec‐00 2.30E‐06 1.4E‐06 3.7E‐07 3.30E‐04 5.0E‐05 1.9E‐06
1st '01 30‐Apr‐01 2.10E‐05 1.0E‐06 1.5E‐07 <7.6E‐07 N/A 7.6E‐07
2nd '01 14‐Jun‐01 1.30E‐06 4.0E‐08 1.2E‐07 1.80E‐06 3.0E‐08 5.9E‐07
4th '01 17‐Dec‐01 3.70E‐05 7.67E‐07 8.30E‐08 6.72E‐05 2.62E‐06 6.00E‐07
1st '02 07‐May‐02 4.90E‐05 2.40E‐06 7.60E‐07 1.28E‐04 5.61E‐06 1.00E‐05
2nd '02 07‐Jul‐02 8.88E‐05 4.32E‐06 7.60E‐07 8.33E‐05 4.32E‐06 1.00E‐05
4th '02 15‐Dec‐02 1.50E‐04 6.2E‐06 7.60E‐07 3.16E‐04 1.07E‐05 1.0E‐05
1st '03 21‐Mar‐03 5.00E‐05 3.4E‐06 2.71E‐06 <4.2e‐6 4.20E‐06
2nd '03 10‐Jun‐03 5.60E‐05 2.0E‐06 4.10E‐07 1.88E‐04 5.14E‐06 8.2E‐08
4th '03 20‐Nov‐03 3.20E‐04 8.2E‐06 1.70E‐07 4.89E‐04 1.25E‐05 8.3E‐07
1st '04 08‐Apr‐04 6.29E‐05 4.1E‐06 2.00E‐07 1.94E‐05 4.00E‐06 1.0E‐06
2nd '04 12‐Jun‐04 6.51E‐05 3.4E‐06 1.30E‐07 1.87E‐05 3.90E‐06 6.5E‐07
4th '04 30‐Nov‐04 7.50E‐05 4.6E‐06 2.0E‐08 4.45E‐04 1.40E‐05 3.0E‐07
1st '05 21‐Apr‐05 4.90E‐05 2.70E‐06 1.30E‐07 1.27E‐04 4.80E‐06 6.50E‐07
2nd '05 13‐Jun‐05 2.30E‐05 2.10E‐06 1.50E‐07 4.70E‐05 5.10E‐06 7.60E‐07
4th '05 10‐Nov‐05 7.40E‐05 3.50E‐06 1.20E‐10 2.40E‐06 8.10E‐08 5.80E‐10
1st '06 03‐Apr‐06 1.00E‐04 6.00E‐06 5.00E‐08 6.54E‐04 1.50E‐05 1.00E‐06
2nd '06 16‐Jun‐06 9.50E‐05 5.90E‐06 5.00E‐08 4.48E‐04 1.40E‐05 1.00E‐06
4th '06 28‐Nov‐06 8.13E‐05 4.10E‐06 2.20E‐07 3.25E‐04 1.12E‐06 1.00E‐05
1st '07 30‐Mar‐07 4.30E‐05 2.60E‐06 1.70E‐07 2.64E‐04 7.20E‐06 8.60E‐07
2nd '07 1‐Jun‐07 5.10E‐05 3.20E‐06 2.30E‐07 5.30E‐04 1.40E‐06 1.20E‐06
4th '07 23‐Nov‐07 7.30E‐05 6.6E‐06 5.0E‐08 7.00E‐04 2.20E‐05 1.10E‐06
1st '08 22‐Apr‐08 2.8E‐06 2.8E‐06 7.20E‐07 4.40E‐04 2.0E‐05 1.0E‐06
2nd '08 18‐Jun‐08 3.2E‐06 3.3E‐06 1.80E‐06 1.40E‐04 3.3E‐05 5.5E‐05
4th '08 12‐Dec‐08 7.3E‐05 3.2E‐06 7.40E‐07 4.40E‐04 2.5E‐05 3.2E‐05
1st '09 28‐Apr‐09 5.3E‐05 3.6E‐06 1.10E‐06 1.90E‐04 1.5E‐05 2.2E‐05
2nd '09 17‐Jun‐09 2.3E‐05 1.6E‐05 5.2E‐07 4.30E‐05 1.00E‐05 1.7E‐05
4th '09 18‐Dec‐09 5.50E‐05 3.50E‐06 3.0E‐04 1.10E‐05
1st '10 13‐May‐10 1.9E‐04 6.10E‐06 9.40E‐07 5.1E‐04 2.40E‐05 3.10E‐05
2nd '10 18‐Jun‐10 2.3E‐05 2.00E‐06 7.70E‐07 8.3E‐05 1.80E‐05 2.90E‐05
  *2nd quarter of 1996 San Juan County, Utah, was declared a disaster area due to drought, no samples were  collected during this period
WHITE MESA MILL
FORAGE RADIONUCLIDE DATA
SOUTHWEST OF MILL
SAMPLED QTR. SAMPLED DATE Ra‐226 Ra‐226 LLD Pb‐210 Pb‐210 LLD
VALUE (uCi/Kg) ERROR (uCi/Kg) uCi/Kg (5.0E‐08) VALUE (uCi/Kg) ERROR (uCi/Kg) uCi/Kg (1.0E‐06)
3rd '81 27‐Aug‐81 9.50E‐04 2.0E‐05 5.0E‐08 1.50E‐04 1.0E‐05 1.0E‐06
4th '81 20‐Oct‐81 3.00E‐05 3.0E‐06 5.0E‐08 1.50E‐04 2.0E‐05 1.0E‐06
2nd '82 15‐Apr‐82 1.37E‐05 3.0E‐06 3.0E‐06 3.80E‐04 4.0E‐05 4.0E‐05
3rd '82 01‐Jul‐82 3.40E‐04 2.0E‐05 5.0E‐08 3.68E‐03 2.7E‐04 1.0E‐07
4th '82 30‐Nov‐82 1.75E‐05 3.0E‐06 2.0E‐06 7.92E‐04 4.0E‐06 2.0E‐05
2nd '83 13‐Apr‐83 7.13E‐04 7.3E‐05 9.0E‐08 2.51E‐03 3.0E‐04 3.0E‐04
3rd '83 01‐Jul‐83 5.39E‐05 4.5E‐06 2.0E‐06 6.88E‐04 4.3E‐05 4.0E‐05
4th '83 30‐Jan‐84 6.40E‐05 7.0E‐06 4.0E‐06 1.20E‐03 1.0E‐04 4.0E‐05
2nd '84 28‐Jun‐84 8.27E‐05 6.3E‐06 3.0E‐09 1.80E‐03 1.0E‐04 9.0E‐08
4th '84 14‐Nov‐84 2.72E‐04 1.5E‐04 2.0E‐07 4.70E‐03 7.2E‐04 3.0E‐07
2nd '85 27‐Mar‐85 4.73E‐04 1.6E‐07 3.0E‐06 7.07E‐04 3.6E‐05 3.0E‐05
3rd '85 15‐Jul‐85 6.60E‐05 7.0E‐06 4.0E‐06 4.90E‐04 3.0E‐05 3.0E‐05
4th '85 09‐Oct‐85 2.83E‐04 2.0E‐05 7.0E‐06 1.50E‐03 1.0E‐04 7.0E‐05
2nd '86 24‐Mar‐86 1.57E‐04 1.0E‐05 4.0E‐06 4.14E‐03 1.8E‐04 3.0E‐05
3rd '86 10‐Jul‐86 3.78E‐04 1.0E‐05 2.0E‐06 1.65E‐02 7.0E‐04 1.0E‐04
4th '86 18‐Dec‐86 2.60E‐04 2.0E‐05 2.0E‐06 1.70E‐03 1.0E‐04 1.0E‐04
2nd '87 20‐Apr‐87 4.10E‐04 7.0E‐05 5.0E‐08 2.20E‐03 1.0E‐04 1.0E‐06
3rd '87 05‐Jun‐87 2.90E‐04 4.0E‐05 5.0E‐08 7.50E‐04 5.0E‐05 1.0E‐06
4th '87 22‐Dec‐87 1.80E‐04 3.0E‐05 5.0E‐08 2.40E‐03 1.0E‐04 1.0E‐06
2nd '88 19‐Apr‐88 2.30E‐04 5.0E‐05 5.0E‐08 2.90E‐03 1.0E‐04 1.0E‐06
3rd '88 28‐Jul‐88 1.50E‐04 3.0E‐05 5.0E‐08 4.30E‐03 2.0E‐04 1.0E‐06
 2nd '89 07‐Apr‐89 3.10E‐04 4.0E‐05 *** 4.20E‐03 1.0E‐04 ***
 3rd '89 06‐Jun‐89 1.30E‐04 2.0E‐05 *** 1.50E‐03 1.0E‐04 ***
 4th '89 07‐Nov‐89 4.30E‐04 5.0E‐05 1.4E‐05 3.50E‐03 1.4E‐04 2.7E‐05
 1st '90 17‐Apr‐90 2.50E‐04 3.0E‐05 5.0E‐06 2.39E‐03 5.0E‐05 2.5E‐05
 2nd '90 20‐Jun‐90 1.10E‐04 2.0E‐05 5.0E‐08 6.60E‐04 3.0E‐05 1.0E‐06
 3rd '90 17‐Oct‐90 6.10E‐05 1.4E‐05 5.0E‐08 6.10E‐04 3.0E‐05 1.0E‐06
 1st '91 10‐Apr‐91 3.40E‐05 1.1E‐05 5.0E‐06 2.20E‐04 1.0E‐05 1.0E‐06
 2nd '91 11‐Jun‐91 8.00E‐05 6.0E‐06 2.0E‐07 1.20E‐04 1.0E‐05 2.0E‐07
 3rd '91 20‐Nov‐91 6.50E‐05 1.4E‐05 5.0E‐08 9.10E‐04 5.0E‐05 1.0E‐06
 1st '92 22‐Apr‐92 1.60E‐05 7.0E‐06 2.0E‐06 3.20E‐04 2.0E‐05 1.0E‐05
 2nd '92 10‐Jun‐92 1.90E‐05 1.0E‐05 2.0E‐07 2.20E‐04 2.0E‐05 1.0E‐06
 3rd '92 10‐Jun‐92 1.60E‐05 1.8E‐05 3.0E‐06 7.60E‐04 6.0E‐05 2.0E‐05
 1st '93 13‐Apr‐93 2.60E‐05 2.0E‐05 3.0E‐06 3.40E‐04 3.0E‐05 2.0E‐05
 2nd '93 26‐Jun‐93 3.00E‐05 1.4E‐05 3.0E‐06 0.00E+00 3.0E‐05 2.0E‐05
 3rd '93 12‐Oct‐93 3.10E‐05 1.6E‐05 3.0E‐06 4.20E‐04 6.0E‐05 2.0E‐05
 1st '94 11‐May‐94 2.00E‐05 5.0E‐06 3.0E‐05 3.90E‐04 8.0E‐05 2.0E‐04
 2nd '94 19‐Jul‐94 1.75E‐05 1.7E‐06 7.6E‐08 1.30E‐04 7.8E‐06 3.8E‐07
 3rd '94 28‐Nov‐94 1.00E‐04 9.0E‐06 1.5E‐07 2.60E‐04 1.2E‐05 7.4E‐07
 1st '95 11‐Apr‐95 1.70E‐05 1.5E‐06 1.6E‐07 1.60E‐04 1.5E‐05 8.1E‐07
 2nd '95 06‐Jul‐95 6.40E‐06 6.0E‐07 1.4E‐07 4.40E‐05 4.2E‐06 7.0E‐07
3rd  '95 15‐Nov‐95 2.30E‐05 2.2E‐06 1.7E‐07 6.60E‐05 9.6E‐06 8.3E‐07
1st  '96 23‐Apr‐96 4.20E‐05 2.2E‐06 1.7E‐07 1.00E‐04 6.7E‐06 1.8E‐07
2nd '96 *31‐Jul‐96
3rd '96 14‐Nov‐96 2.10E‐05 2.0E‐06 1.6E‐07 1.90E‐04 7.3E‐06 8.2E‐07
1st '97 21‐Apr‐97 5.50E‐06 4.2E‐07 1.4E‐07 3.30E‐05 3.9E‐06 7.0E‐07
3rd '97 05‐Sep‐97 5.30E‐06 3.2E‐07 1.3E‐07 1.90E‐05 6.9E‐07 6.3E‐07
4th '97 20‐Nov‐97 2.50E‐05 9.5E‐07 5.9E‐07 1.30E‐04 4.7E‐06 1.2E‐07
1st '98 23‐Mar‐98 <7.90E‐05 7.9E‐05 7.9E‐05 <3.90E‐04 3.9E‐04 3.9E‐04
2nd '98 16‐Jun‐98 3.60E‐07 1.4E‐07 3.3E‐08 <1.7E‐07 1.7E‐07 1.7E‐07
4th '98 05‐Nov‐98 4.30E‐05 1.0E‐06 7.6E‐08 2.50E‐04 1.0E‐05 3.8E‐07
2nd '99 15‐Apr‐99 2.40E‐05 1.0E‐06 1.2E‐07 1.70E‐04 8.0E‐06 6.2E‐07
3rd '99 07‐Jul‐99 2.23E‐05 8.6E‐07 1.2E‐07 2.30E‐04 7.0E‐06 5.9E‐07
4th '99 02‐Dec‐99 1.50E‐04 3.0E‐06 2.0E‐07 1.70E‐05 1.0E‐06 1.0E‐06
2nd '00 21‐Apr‐00 1.00E‐04 2.0E‐06 1.2E‐07 1.10E‐04 7.0E‐06 6.1E‐07
2nd '00 22‐Jun‐00 1.30E‐06 1.0E‐07 2.4E‐07 2.00E‐04 1.0E‐05 1.2E‐06
4th '00 21‐Dec‐00 1.20E‐06 9.0E‐07 2.4E‐07 1.20E‐04 3.0E‐05 1.2E‐06
1st '01 30‐Apr‐01 1.80E‐06 1.0E‐07 1.7E‐07 <8.3E‐07 N/A 8.3E‐07
2nd '01 14‐Jun‐01 2.60E‐06 2.0E‐07 9.9E‐08 1.10E‐06 2.0E‐08 5.0E‐07
4th '01 17‐Dec‐01 2.63E‐06 4.6E‐05 1.2E‐07 9.40E‐05 3.7E‐06 6.0E‐07
1st '02 07‐May‐02 3.50E‐05 2.2E‐06 7.6E‐07 1.36E‐04 5.6E‐06 1.0E‐05
2nd '02 07‐Jul‐02 4.02E‐05 2.3E‐06 7.6E‐07 7.04E‐05 4.1E‐06 1.0E‐05
4th '02 15‐Dec‐02 8.10E‐05 3.9E‐06 7.6E‐07 2.87E‐04 8.5E‐06 1.0E‐05
1st '03 21‐Mar‐03 3.70E‐05 2.6E‐06 2.4E‐06 2.69E‐05 2.0E‐06 3.7E‐06
2nd '03 10‐Jun‐03 1.30E‐05 1.0E‐06 5.2E‐07 <1.00E‐07 1.0E‐07
4th '03 20‐Nov‐03 1.60E‐04 1.3E‐05 1.2E‐07 1.42E‐04 6.4E‐06 5.9E‐07
1st '04 08‐Apr‐04 1.40E‐04 7.7E‐06 1.1E‐07 6.10E‐06 2.7E‐06 5.5E‐07
2nd '04 12‐Jun‐04 6.51E‐05 3.2E‐06 1.5E‐07 5.27E‐05 4.9E‐06 7.6E‐07
4th '04 30‐Nov‐04 8.40E‐05 5.7E‐06 3.0E‐08 3.39E‐04 1.6E‐05 3.0E‐07
1st '05 21‐Apr‐05 1.70E‐05 1.6E‐06 1.3E‐07 4.50E‐05 3.5E‐06 6.5E‐07
2nd '05 13‐Jun‐05 1.50E‐05 1.6E‐06 1.4E‐07 7.00E‐05 5.1E‐06 6.9E‐07
4th '05 10‐Nov‐05 3.80E‐05 2.1E‐06 8.6E‐10 1.20E‐06 4.8E‐08 4.3E‐10
1st '06 03‐Apr‐06 1.00E‐04 6.0E‐06 5.0E‐08 3.30E‐04 1.1E‐05 1.0E‐06
2nd '06 16‐Jun‐06 3.40E‐05 2.5E‐06 5.0E‐08 1.37E‐04 6.0E‐06 1.0E‐06
4th '06 28‐Nov‐06 7.31E‐05 3.20E‐06 1.60E‐07 2.98E‐04 8.50E‐06 8.20E‐07
1st '07 30‐Mar‐07 3.00E‐05 2.20E‐06 1.70E‐07 3.20E‐04 7.90E‐06 8.40E‐07
2nd '07 1‐Jun‐07 1.10E‐04 4.60E‐06 2.3‐07 3.20E‐04 1.10E‐05 1.10E‐06
4th '07 23‐Nov‐07 5.60E‐05 5.20E‐06 5.00E‐08 6.40E‐04 1.90E‐05 1.00E‐06
1st '08 22‐Apr‐08 3.20E‐05 2.30E‐06 7.20E‐07 2.30E‐04 1.50E‐05 1.00E‐06
2nd '08 18‐Jun‐08 1.25E‐05 2.20E‐06 1.80E‐06 5.00E‐05 3.00E‐05 4.80E‐03
4th '08 12‐Dec‐08
1st '09 28‐Apr‐09 2.60E‐05 2.90E‐06 1.40E‐06 3.70E‐05 1.50E‐06 2.50E‐05
2nd '09 17‐Jun‐09 2.40E‐05 1.40E‐06 3.90E‐07 3.50E‐05 7.90E‐06 1.30E‐05
4th '09 18‐Dec‐09 3.1E‐05 2.30E‐06 2.1E‐04 8.40E‐06
1st '10 13‐May‐10 2.0E‐05 2.10E‐06 9.40E‐07 5.6E‐05 1.50E‐05 2.40E‐05
2nd '10 18‐Jun‐10 1.1E‐05 1.30E‐06 6.60E‐07 7.8E‐05 1.60E‐05 2.50E‐05
  *2nd quarter of 1996 San Juan County, Utah, was declared a disaster area due to drought, no samples were  collected during this period
www.energylab.com
Analytical Excellence:
Helena,MT 877·472·0711 •Billings.MT 800-735-4489 •Casper,WY 888-235-0515
Gillette,WY 866-686-7175 •Rapid C 888-672-1225.College Station,TX 888-690-2218
ANALYTICAL SUMMARY REPORT
June 29,2010
Denison Mines USA Corp
6425 S Hwy 191
Blanding,UT 84511
Workorder No.:C10050543
Project Name:Early Spring Vegetation
Energy Laboratories,Inc.received the following 3 samples for Denison Mines USA Corp on 5/1812010 for analysis.
Sample 10 Client Sample 10 Collect Date Receive Date Matrix Test
C10050543-001 North East
C10050543-002 North West
C10050543-003 South West
05/13/1013:30 05118110 Vegetation Digestion,Radiochemistry
Lead 210
Radium 226
05113/1014:05 05118/10 Vegetation Same As Above
05/13/1014:4505/18110 Vegetation Same As Above
This report was prepared by Energy Laboratories,Inc.,2393 Salt Creek Hwy.,Casper,WY 82601.Any exceptions
or problems with the analyses are noted in the Laboratory Analytical Report.the QAlQC Summary Report,or the
Case Narrative.
The results as reported relate only to the item(s)submitted for testing.
If you have any questions regarding these test results,please call.
Report Approved By:~~~.~Stephanie~aldrop "
Reporting Supervisor
www.energylab.com
Analyticill Excellence r Helena,MT871-472-0711 •Billings,MY 800-735-4489·Casper,WY 888-235-0515
Gillette,WY 866-686-7175 •Rapid C Y888-672-1225 •College Station,TX 888-690-2218
'-'
CLIENT:Denison Mines USA Corp
Project:Early Spring Vegetation
Sample Delivery Group:C10050543
Report Date:06/29/10
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 ofsamples received may not be considered properly preserved by accepted standards.Samples that are hand
delivered immediately after collection shall be considered acceptable ifthere 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 TOS 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 ofexposure to
beginning of counting should not exceed 8 days.
SOIUSOLlD SAMPLES
All samples reported on an as received basis unless otherwise indicated.
ATRAZINE,SIMAZINE AND PCB ANALYSIS
Data for PCBs,Atrazine and Simazine are reported from EPA 525.2.PCB data reported by ELI reflects the results for seven
individual Aroclors.When the results for all seven are NO (not detected),the sample meets EPA compliance criteria for
PCB monitoring.
SUBCONTRACTING ANALYSIS
Subcontracting of sample analyses to an outside laboratory may be required.Ifso,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,WV
eli-h -Energy Laboratories,Inc.-Helena,MT
eli-r -Energy Laboratories,Inc.-Rapid City,SO
eli-t -Energy Laboratories,Inc.-College Station,TX
CERTIFICATIONS:
USEPA:WY00002,Radiochemical WV00937;FL-DOH NELAC:E87641.Radiochemical E871017;California:02118CA;
Oregon:WY200001;Utah:3072350515;Virginia:00057;Washington:C1903
ISO 17025 DISCLAIMER:
The results ofthis 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.
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AnalyticalExcellence!
Helena,MT 871-412-0711 •Billings,MT 800-735-4489 •Casper,WY 888-235-0515
Gillette,WY 866-686-7175 •Rapid C 888-672-1225 •College Station,TX 888-690-2218
Client:
Project:
Lab 10:
ClientSample 10:
LASORATORY ANALYTICAL REPORT
Denison Mines USA Corp
Early Spring Vegetation
C10050543-001
North East
Report Date:06129/10
Collection Date:05/13/1013:30
DateReceived:05/18/10
Matrix:Vegetation
MCW
Analyses Result Units Qualifiers RL QCL Method Analysis Date 1By
RADIONUCLlDES·TOTAL
lead 210 1.9E·04 uCilkg E909.0M 06/14/1023:461 dm
lead 210 prec'sion (:t)1.9E-05 uCilkg E909.0M 06/14/10 23:46 1dm
lead 210 MOC 2.9E-05 uCilkg E909.0M 06/14/10 23:46/dm
lead 210 altu 191 pCi/kg E909.0M 06/14/10 23:46 1dm
lead 210 precision (:t)altu 19.0 pCilkg E909.0M 06/14/10 23:46 1dm
lead 210 MOC altu 28.6 pCi/kg E909.0M 06/14/1023:461 dm
Radium 226 2.2E-04 uCilkg E903.0 06/09/10 14:32 1trs
Radium 226 precision (:t)7.2E-06 uCilkg E903.0 06/09/10 14:32/trs
Radium 226 MDC 1.1E-06 uCi/kg E903.0 06/09/10 14:32 1trs
Radium 226 altu 221 pCi/kg E903.0 06/09/10 14:32 1trs
Radium 226 altu precision (:t)7.2 pCi/kg E903.0 06/09/10 14:32 1trs
Radium 226 altu MOC 1.1 pCi/kg E903.0 06/09/10 14:32 /trs
Report
Definitions:
Rl •Analyte reporting limit.
QCl -Quality control limit.
MOC -Minimum detectable concentration
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
1
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Malyiical [xCll/ence !
Helena,MT 871-472-0711 "Billings,MT 800-735-4489 •Casper,WY 888-235-0515
Gillette,WY 886-686-7175"Rapid C 888-872-1225"College Station,TX 888-690-2218L-_L.-~_
Client:
Project:
Lab 10:
Client Sample 10:
LABORATORY ANALYTICAL REPORT
Denison Mines USA Corp
Early Spring Vegetation
C10050543-002
North West
Report Date:06/29/10
Collection Date:05/13/1014:05
DateReceived:05/18/10
Matrix:Vegetation
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date 1By
RADIONUCLIDES -TOTAL
lead 210 5.1E-04 uCilkg E909.0M 06/15/1005:511 dm
lead 210 precision (:1:)2.4E-05 uCilkg E909.0M 06115/1005:51 1dm
lead 210 MDC 3.1E-05 uCilkg E909.0M 06/15/10 05:51 1dm
lead 210 altu 512 pCilkg E909.0M 06115/1005:51/dm
lead 210 precision (:1:)altu 23.6 pCilkg E909.0M 06/15/1005:51/dm
Lead 210 MOC altu 31.4 pCilkg E909.0M 06/15/1005:51 1dm
Radium 226 1.9E-04 uCilkg E903.0 06/09/10 14:321 trs
Radium 226 precision (:1:)6.1E-06 uCilkg E903.0 06/09/10 14:321 trs
Radium 226 MDC 9.4E-07 uCilkg E903.0 06/09/10 14:32/1rs
Radium 226 altu 191 pCilkg E903.0 06/09/10 14:32 /Irs
Radium 226 altu precision (:1:)6.1 pCilkg E903.0 06/09/10 14:32/1rs
Radium 226 altu MDC 0.94 pCilkg E903.0 06/09/10 14:32/1rs
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
MDC -Minimum detectable concentration
MCl -Maximum contaminant level.
NO •Not detected at the reporting limit.
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AnalyticillExcellenclI S~
Helena,MT 877-472-0711 •Billings,MT 800-735-4489 •Casper,WY 888-235-0515
Gillette,WY 866-686-7175 •Rapid Ci 888-672-1225 •College Station,TX 888-690-2218
Client:
Project:
LablD:
Client Sample 10:
LABORATORY ANALYTICAL REPORT
Denison Mines USA Corp
Early Spring Vegetation
C10050543-003
South West
Report Date:06129/10
Collection Date:05/13/10 14:45
DateReceived:05/18/1 0
Matrix:Vegetation
MCU
Analyses Result Units Qualifiers RL QCL Method Analysis Date 1By
RADIONUCLIDES -TOTAL
lead 210 5.6E·05 uCilkg E909.0M 06115/1007:521 dm
lead 210 precision (1:)1.5E-05 uCilkg E909.0M 06/15/1007:521 dm
lead 210 MDC 2.4E-05 uCilkg E909.0M 06/15/10 07:521 dm
lead 210 altu 55.6 pCilkg E909.0M 06/15/1007:521dm
lead 210 precision (1:)altu 14.9 pCilkg E909.0M 06/15/10 07:52 1dm
lead 210 MOC altu 24.0 pCilkg E909.0M 06/15/10 07:52 1dm
Radium 226 2.0E-OS uCi/kg E903.0 06109/10 14:321trs
Radium 226 precision (1:)2.1E-06 uCi/kg E903.0 06/09/10 14:32 1trs
Radium 226 MDC 9.4E-07 uCilkg E903.0 06/09/10 14:32 1trs
Radium 226 altu 20.4 pCilkg E903.0 06/09/1014:321trs
Radium 226 allu precision (1:)2.1 pCilkg E903.0 06/09/1014:321trs
Radium 226 altu MOC 0.94 pCilkg E903.0 06/09/10 14:32/lrs
Report
Definitions:
Rl -Analyte reporting limit.
QCL -Quality control limit.
MOC -Minimum delectable concentration
MCl ~Maximum contaminant level.
NO -Not detected atlhe reporting limit.
www.energylab.com
AnalyticalExc,lI/mcI •,gs2,Helena,MT 877-472-0711 •Billings.MT 800-735-4489 •Casper,WY 888-235-0515
Gillette,WY 866-686-7175 •Rapid :SD 888-672-1225 •College Station.IX 888-690-2218
Client:Denison Mines USA Corp
Project:Early Spring Vegetation
QA/QC Summary Report
Report Date:06129/10
Work Order:C10050543
IAnalyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual 1
Method:E903.0
Sample 10:C10050543.Q02AMS
Radium 226
Sample ID:C10050543.Q02AMSO
Radium 226
Sample ID:LCS-26253
Radium 226
Sample Matrix Spike
0.00029 uCi/kg
Sample Matrix Spike Duplicate
0.00029 uCi/kg
Laboratory Control Sample
1.7E-05 pCilL
Run:BERTHOLD 770-1_1006038
116 70 130
Run:BERTHOLD 770-1 1006038
118 70 130 0.1
Run:BERTHOLD 770-1_1006038
114 70 130
Batch:26253
06/09/10 14:32
06/09/10 14:32
18.1
06/09/10 14:32
Sample 10:MB·26253
Radium 226
Radium 226 precision (:t)
Radium 226 MDC
3 Method Blank
3E-D7
2E-07
4E-07
pCilL
pCi/L
pCi/L
Run:BERTHOLD 770-1_1006038 06/09/1014:32
U
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
ND -Not detected at the reporting limit.
U -Not detected at minimum detectable concentrabon
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Anafytiul Ellcellence Sf .'1
Helena.MT 877-472-0711 •Bjllings,MT 800-735-4489 •Casper,WY 888-235-0515
Gillette,WY 866-686-7175 •Rapid Ci )888-672-1225 •College Station,TX 888-690-2218......
Client:,Denison Mines USA Corp
Project:Early Spring Vegetation
QAlQC Summary Report
Report Date:06/29110
Work Order:C10050543
IAnalyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual I
Method:E909.0M
Sample 10:C10050543-001AMS
Lead 210
Sample 10:C10050543-001AMSD
Lead 210
Sample Matrix Spike
0,0013 uCilkg
Sample Matrix Spike Duplicate
0,0014 uCilkg
Run:BECKMAN 6100TA_100610A
103 70 130
Run:BECKMAN 6100TA_10061OA
112 70 130 7.5
Batch:PB-210-0716
06/15/1001 :48
06/15/10 03:49
17
Sample 10:MB-26253
Lead 210
Lead 210 precision (:1:)
Lead 210 MOC
3 Method Blank
4E-Q7
2E-05
3E-05
pCi/L
pCi/L
pCilL
Run:SECKMAN 6100TA_100610A 06/15/1009:54
U
Sample 10:LCS-26253
Lead 210
Laboratory Control Sample
0.00051 pCilL
Run:BECKMAN 6100TA_10061OA
93 70 130
06/15/1013:57
Qualifiers:
RL -Analyte reporting limit.
MOC -Minimum detectable concentration
NO -Not detected at the reporting limit.
U -Not detected at minimum detectable concentration
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AnalyticalexcellenceS·
Helena,MT 877·472·0711 •Billings,MT 800·735·4489 •Casper,WY 888·235·0515
Gillette,WY 866-686-7175 •Rapid C·~888-672-1225 •College Station,TX 888-690-2218,
Energy Laboratories Inc
Workorder Receipt Checklist
Denison Mines USA Corp
Login completed by:Corinne Wagner
Reviewed by:BL2000\kschroeder
Reviewed Date:5/21/2010
111~~I~mlllll ~IIIIIIIIIIII~11111111111
C10050543
Date Received:5/18/2010
Received by:ha
Carrier name:2Day
Shipping container/cooler in good condition?
Custody seals intact on shipping container/cooler?
Custody seals intact on sample bottles?
Chain of custodypresent?
Chain ofcustodysigned when relinquished and received?
Chain of custodyagrees with sample labels?
Samplesin propercontainerlbottle?
Samplecontainers intact?
Sufficientsample volume for indicated test?
All samples received within holding time?
ContainerfTemp Bla nk temperature:
Water·VOA vials have zero headspace?
Water -pH acceptable upon receipt?
Contactand CorrectiveAction Comments:
None
Yes iii
Yes 0
Yes 0
Yes iii
Yes iii
Yes iii
Yes iii
Yes iii
Yes 0
Yes 0
·C
Yes 0
Yes 0
No 0
No 0
No 0
No 0
No 0
No 0
No 0
NoD
No 0
NoD
No 0
No 0
Not Present 0
Not Present 0
Not Present 0
No VOA vials submitted iii
Not Applicable 0
Page --L of-f..-.-Chain of Custody and Analytical Request RecordI6Bil§7
•••>.,».'_i_D"_"%sF •fC SI'-flTI--PLEASE PRINT (Provide as much information as Dossible.l
Company Name:Project Name,PWS,Permit,Etc.Sample Origin EPA/State Compliance:
I (f)/~/A.A~S;>J'.:....1i,L;(/......,..Jd~State:IJ..-r'Yes 0 No 0 .;,I~'.""J r'-vt::<.
Reportzr~$V'f -cOd,~a~~k~Ph6ne/Fax:Email:Sampler:(Please Print)
·0·#<i2~4N R/~.JU,J -JA1"5?'1SIJ '155"~rk..1.221 ~
Invoice Address;..../Invoice Contact &Phone:Purchase Order:Quofe/Bottle Order:
AA~<::;..---Special Report/Formats:-..Contact ELI prior to Shipped by:
$:~&11W®O®~@:®QD§®V@:@):ll\A>0 (i)RUSH sample submittal
""0 V)J::.[for charges and CoolerID(s):
~CD;gOI (i)0 R scheduling -See ~o'(.->0 >-10DowoEOO/EDT(Electronic Data)19 enen «l $:w Instruction Pagec<Is (J)Io$:=~C)"0 ReceiptTempoPOTWIVVWTP()c:Comments:Format:~<{~I.Q~::J U (I/ADState:o LEVEL IV °....COI c::«e °C~<Li~c:'C I-Cll~Q.(\1,,go CoOther:o NELAC E~(\1 •-......s ~~On Ice:Y{N)::J~:a:IQ)$:~I"S:~sZQ.lir0 w "E Custody Seal ~!ij >1 ~W Cll ~..~~Nen"0enc:On Cc!alel
",'t
~H Intact N~(J)
SAMPLE IDENTIFICATION Collection Collection MATRIX :v Signature N
(Name,Location,Interval,etc.)Date Time .-Match
1 )~VA/IJ'DTH j /1.'i-r 3~q:z&.f5 '13-/0 133r)I~
Aln4htf"JA/".!"'~K?~l6-13-,t)141J'5 }-\I .~
~(}IJT*-IAln1'""''It.q;,'15-H -JI)Itll{C;-I-V g
'nnn
4 /m
5 1'-'"~
6 ~C
7 ~rJ(LF:Z~1
8 ~0
9 croI~
10 Io::::!
Custody ~iShedb71Z):DatelTime:JI/J()Si7:L IU Received by (print):DalelTime:Signature:
",~tA...,,J::)·Jq'llJRecordRelincIJlshedb'J'(print):DateJnrMl:si~re:,Received by (print):DatelTime:Signature:
MUST be
Signed Sample Disposal:Return to Client:Lab Disposal:K1!WL\t~lelllm:S-/fyir(")q:3n;~e:
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 ofthis 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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Analytical Excellence S
Helena,MT 871·412-0111 •Rillings,MT 800-735-4489 •Casper,WY 888-235-0515
Gillette,WY 866-686-7175 •Rapid C.888-672-1225 •College Station,TX 888·690-2218
ANALYTICAL SUMMARY REPORT
August 06,2010
Denison Mines USA Corp
6425 S Hwy 191
Blanding,UT 84511
Workorder No.:C10060894
Project Name:Late Spring Vegetation
06/18/1013:4006/23/10 Vegetation Digestion,Radiochemistry
Lead 210
Radium 226
06/18/1012:55 06/23/10 Vegetation Same As Above
06/18/1012:05 06/23/10 Vegetation Same As Above
C10060894-002 North West
C10060894-003 North East
Energy Laboratories,Inc.received the following 3 samples for Denison Mines USA Corp on 612312010 for analysis.
Sample 10 Client Sample 10 Collect Date Receive Date Matrix Test-----:=====----...:::=
C10060894-001 South West
This report was prepared by Energy Laboratories,Inc.,2393 Salt Creek Hwy.,Casper,VVY 82601.Any exceptions
or problems with the analyses are noted in the Laboratory Analytical Report,the QNQC Summary Report,or the
Case Narrative.
The results as reported relate only to the item(s)submitted for testing.
II you have any questions ~he~i::ease call.
Report Approved BY~----yen E.Carlston
Technical Director
www.energylab.com
AlI6lyt;~1 Excellence S
Helena,MT 877-412-0111 •Rillings,MT 800-135-4489 •Casper,WY 888-235-0515
Gillette,WY 866-686-1115 •Rapid C 888-612-1225 •College Stalion,TX 888-690-2218
CLIENT:Denison Mines USA Corp
Project:Late Spring Vegetation
Sample Delivery Group:C10060894
Report Date:08/06/10
CASE NARRATIVE
ORIGINAL SAMPLE SUBMITTAL(S)
All original sample submittals have been returned with the data package.
SAMPLE TEMPERATURE COMPLIANCE:4°C (±20C)
Temperature ofsamples received may not be considered properly preserved by accepted standards.Samples that are hand
delivered immediately after collection shall be considered acceptable ifthere 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 lowTDS 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 ofexposure to
beginning ofcounting should not exceed 8 days.
SOIUSOLID SAMPLES
All samples reported on an as received basis unless otherwise indicated.
ATRAZINE,SIMAZINE AND PCB ANALYSIS
Data for PCBs,Atrazine and Simazine are reported from EPA 525.2.PCB data reported by ELI reflects the results for seven
individual Aroclors.When the results for all seven are ND (not detected),the sample meets EPA compliance criteria for
PCB monitoring.
SUBCONTRACTING ANALYSIS
Subcontracting of sample analyses to an outside laboratory may be required.If so,ENERGY LABORATORIES will utilize its
branch laboratories or qualified contract laboratories for this service.Any such laboratories will be indicated within the
Laboratory Analytical Report.
BRANCH LABORATORY LOCATIONS
eli-b -Energy Laboratories,Inc.-Billings,MT
eli-g -Energy Laboratories,Inc.-Gillette,WY
eli-h -Energy Laboratories,Inc.-Helena,MT
eli-r -Energy Laboratories,Inc.-Rapid City,SD
eli-t -Energy Laboratories,Inc.-College Station,TX
CERTIFICATIONS:
USEPA:WY00002,Radiochemical WY00937;FL-DOH NELAC:E87641,Radiochemical E871017;California:02118CA;
Oregon:WY200001;Utah:3072350515;Virginia:00057;Washington:C1903
ISO 17025 DISCLAIMER:
The results ofthis 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
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Helena,MT 877-412-0711 -~iIIings,MT 800-735-4489 •Casper,WY 888-235-0515
Gillette,WY 866-686-7175·Rapid,10888-612-1225.College Station,TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
LablD:
Client Sample 10:
Denison Mines USA Corp
Late Spring Vegetation
C10060894-001
South West
Report Date:
Collection Date:
OateReceived:
Matrix:
08106/10
06118/1013:40
06123/10
Vegetation
MCL!
Analyses Result Units Qualifier RL QCL Method Analysis Date 1By
RADIONUCLIDES -TOTAL
lead 210 7.8E-05 uCi/kg E909.0M 07/22/1018:351 dm
lead 210 precision (±)1.6E-05 uCi/kg E909.0M 07/2211018:351 dm
lead 210 MOC 2.5E-05 uCI/kg E909.0M 07/2211018:35/dm
lead 210 altu 78.3 pCilkg E909.0M 07/22/10 18:351 dm
lead 210 precision (±)altu 15.6 pCi/kg E909.0M 07/22/1018:35/dm
lead 210 MOC altu 24.8 pCi/kg E909.0M 07/22/10 18:35 /dm
Radium 226 1.1E-05 uCi/kg E903.0 07/19/10 17:24/trs
Radium 226 precision (±)1.3E-<l6 uCi/kg E903.0 07/19/10 17:24 /trs
Radium 226 MOC 6.6E-07 uCilkg E903.0 07/19/10 17:24 /trs
Radium 226 altu 11.0 pCilkg E903.0 07/19/1017:24/trs
Radium 226 altu precision (±)1.3 pCilkg E903.0 07/19/10 17:24/trs
Radium 226 altu MOC 0.66 pCi/kg E903.0 07/19/1017:24/trs
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
MDC -Minimum detectable concentration
MCl -Maximum contaminant level.
NO -Not detected at the reporting mit.
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Helena,MT 871-472-0711 ~q'Uings,MT 800-735-4489 •Casper,WY 888-235-0515
Gillette,WY 866-686-7175 •Rapid L ~D 888-672-1225 College Station,TX 888-690-2218
LABORATORY ANALYTICAL REPORT
Client:
Project:
lab 10:
Client Sample 10:
Denison Mines USA Corp
Late Spring Vegetation
C10060894-002
North West
Report Date:
Collection Date:
DateReceived:
Matrix:
08/06/10
06/18/1012:55
06/23/10
Vegetation
MCU
Analyses Result Units Qualifier RL QCL Method Analysis Date 1By
RADIONUCLIDES -TOTAL
Lead 210 8.3E-05 uCilkg E909.0M 07/22/1020:361 dm
Lead 210 precision (±)1.8E-05 uCilkg E909.0M 07/2211020:361 dm
Lead 210 MOe 2.9E-05 uCilkg E909.0M 07/2211020:361 dm
Lead 210 a tu 82.9 pCilkg E909.0M 07/22110 20:36 1dm
Lead 210 precision (±)altu 18.4 pCilkg E909.0M 07/22/1020:361 dm
Lead 210 MOC altu 29.4 pCi/kg E909.0M 07/22/1020:361 dm
Radium 226 2.3E-05 uCi/kg E903.0 07/19/10 17:241trs
Radium 226 precision (t)2.0E-06 uCi/kg E903.0 07/19/10 17:241 trs
Radium 226 MOC 7.7E-07 uCi/kg E903.0 07/19/10 17:241 trs
Radium 226 altu 22.6 pCi/kg E903.0 07/19/10 17:24 1trs
Radium 226 altu precision (±)2.0 pCi/kg E903.0 07/19/10 17:24 1trs
Radium 226 altu MDC 0.77 pCilkg E903.0 07/19/10 17:24 1trs
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
MOC -Minimum detectable concentration
MCL -Maximum contaminant level.
ND -Notdetected at the reporting limit.
teJE;.www.energylab.como
AnalyticalExcellence rll52
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
ClientSample 10:
Denison Mines USA Corp
Late Spring Vegetation
C10060894-003
North East
Report Date:08/06/10
Collection Date:06/18/1012:05
DateReceived:06/23/10
Matrix:Vegetation
MCU
Analyses Result Units Qualifier RL QCL Method Analysis Date I By
RADIONUCLIDES -TOTAL
Lead 210 1.4E-04 uCill<g E909.0M 07/22/1022:381 dm
Lead 210 precision (±)1.9E-05 uCilKg E909,OM 07/22/1022:381 dm
Lead 210 MOC 2.9E-05 uCi/kg E909.0M 07/2211022:381 dm
Lead 210 altu 137 pCilkg E909,OM 07/2211022:381 dm
Lead 210 precision (±)altu 18.8 pCilkg E909.0M 07/2211022:381 dm
Lead 210 MOC altu 29.1 pCilkg E909.0M 07/22/1022:381 dm
Radium 226 6.5E-05 uCi/kg E903.0 07/19/1017:24/trs
Radium 226 precision (±)3.4E-Q6 uCi/kg E903.0 07/19/1017:24/trs
Radium 226 MOC 7.6E-Q7 uCi/kg E903.0 07/19/1017:24/trs
Radium 226 altu 64.9 pCi/kg E903.0 07/19/10 17:24/trs
Radium 226 altu precision (±)3.4 pCi/kg E903,0 07/19/10 17:24/trs
Radium 226 altu MOC 0.76 pCi/kg E903.0 07/19/10 17:241 trs
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
MOC -Minimum detectable concentration
MCL -Maximum contaminant level.
NO -Not detected at the reporting limit.
www energylab.cQm
AnalyticalExcellence!
Helena,MT 877-472-0711 •D;llings,MT 800-735-4489.Casper,WY 888-235-0515
Gillette,WY 866-686-7175.Rapid C.888-672-1225 •College Station.TX 888-690-2218
QA/QC Summary Report
Client:Denison Mines USA Corp
Project:Late Spring Vegetation
Report Date:08/06/10
Work Order:C10060894
Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Method:E903.0
Sample 10:C10060894-001AOUP
Radium 226
Radium 226 precision (1)
Radium 226 MDC
Sample 10:C10060894-003AMS
Radium 226
Sample 10:LCS·26563
Radium 226
3 Sample Duplicate
1.2E-05 uCilkg
1.3E-06 uCVkg
6.5E-07 uCi/kg
Sample Matrix Spike
9.8E-05 uCilkg
Laboratory Control Sample
1.5E-QS uCilkg
Run:BERTHOLD 770-1_100709A
5.5
Run:BERTHOLD 770-1_100709A
73 70 130
Run:BERTHOLD 770-1_100709A
94 70 130
Batch:RA226-4646
07/19/10 17;24
33.7
07/19/1017;24
07/19/1017:24
Sample 10:MB-26563
Radium 226
Radium 226 precision (1)
Radium 226 MDC
3 Method Blank
2E-Q7
1E-Q7
3E-07
uCilkg
uCilkg
uCilkg
Run:BERTHOLD 77D-1_100709A 07/19/10 17:24
U
Qualifiers:
RL •Analyte reporting limit.
MDC -Minimum detectable concentration
NO -Not detected at the reporting limit.
U -Not detected at minimum detectable concentration
www.energylab.com
AnalyticalElcellence~
Helena,MY 877-472-0711 •Billings,MY 800-735-4489.Casper,WY 888-235-0515
Gillette,WY 866-686-7175.Rapid C )888-672-1225.College Station,IX 888-690-2218
QA/QC Summary Report
Client:Denison Mines USA Corp
Project:Late Spring Vegetation
Report Date:08/06/1 0
Work Order:C10060894
Analyte Count Result Units RL "IoREC Low Limit High Limit RPO RPOLimit Qual
Method:E909.0M
Sample 10:C10060894.o03AMS
Lead 210
Sample Matrix Spike
0.0017 uCilkg
Run:BECKMAN 6100TA_100706B
114 70 130
Batch:PB-21 0-0730
07123/1000:39
Sample 10:C10060894-003AMSO Sample Matrix Spike Duplicate Run:BECKMAN 6100TA_100706B 07/23/1002:41
Lead 210 0.0014 uCi/kg 89 70 130 23 16.2 R
-The RPO for the MSD is high.The individual spike recoveries are within range,the MB is acceptable,and the lCS is within range,therefore the batch is approved
Sample 10:MB-26554
Lead 210
Lead 210 precision (±)
Lead 210 MOC
Sample 10:LCS-26554
Lead 210
3 Method Blank
NO pCilg-dry
0.02 pCi/g-dry
0.03 pCi/g-dry
Laboratory Control Sample
57.3 pCi/g-dry
Run:BECKMAN 6100TA_100706B
Run:BECKMAN 6100TA_100706B
110 70 130
07/23/1004:42
U
07/23/1008:46
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
U -Not detected at minimum detectable concentration
NO -Not detected atthe reporting limit.
R-RPD exceeds advisory limit.
www.energylab.com
AnalyticalExcellence [
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Gillette,WY 866-686-7175.Rapid C 888-672-1225 College Station,TX 888-690-2218
Energy Laboratories Inc
Workorder Receipt Checklist
Denison Mines USA Corp
Login completed by:Halley Ackerman
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Reviewed Date:6/23/2010
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C10060894
Date Received:6/23/2010
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Chain of Custody and Analytical Request Record
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ATTACHMENT G

FIRST QUARTER
RADIONUCLIDE EMISSIONS TEST
CONDUCTED AT
DENISON MINES CORPORATION
NORTH YELLOW CAKE SCRUBBER
YELLOW CAKE DRYER BAGHOUSE
BLANDING, UTAH
February 17-18, 2010
by:
TETCO
391 East 620 South
American Fork, UT 84003
Phone [phone]
Fax [phone] fax
Prepared for:
Denison Mines Corporation
6425 S Hwy 91
Blanding, Utah 84511
Date of Report:
April 20, 2010
CERTIFICATION OF REPORT INTEGRITY
Technical Emissions Testing Company (TETCO)certifies that this report represents the truth as
well as can be derived by the methods employed.Every effort was made to obtain accurate and
representative data and to comply with procedures set forth in the Federal Register.
Mike McNamara
Reviewer:----------------
Date:---"-'-----'---'-_
Dean A.Kitchen
II
iii
TABLE OF CONTENTS
PAGE
Introduction
Test Purpose............................................................1
Test Location and Type of Process ..........................................1
Test Dates .............................................................1
Pollutants Tested and Methods Applied ......................................1
Test Participants.........................................................2
Deviations From EPA Methods .............................................2
Quality Assurance .......................................................2
Summary of Results
Emission Results ........................................................3
Process Data............................................................3
Description of Collected Samples ...........................................3
Discussion of Errors or Irregularities .........................................3
Percent Isokinetics.......................................................4
Source Operation
Process Control Devices Operation..........................................5
Process Representativeness ................................................5
Sampling and Analysis Procedures
Sampling Port Location...................................................6
Sampling Point Location ..................................................6
Sampling Train Description................................................6
Sampling and Analytical Procedures.........................................7
Quality Assurance .......................................................7
Appendices
A: Complete Results and Sample Calculations
B: Raw Field Data
C: Laboratory Data and Chain of Custody
D: Raw Production Data
E: Calibration Procedures and Results
F: Related Correspondence
iv
LIST OF TABLES
PAGE
Table
I Measured Radionuclide Emissions ..........................................3
II Percent Isokinetics.......................................................4
III Sampling Point Location ..................................................6
IV Complete Results, North Yellow Cake Scrubber ......................Appendix A
V Complete Results, Yellow Cake Dryer Baghouse ......................Appendix A
LIST OF FIGURES
Figure
1 Facility Schematic Representation North Yellow Cake Scrubber ..........Appendix D
2 Facility Schematic Representation Yellow Cake Dryer Baghouse .........Appendix D
3 Schematic of Method 5/114 Sampling Train ..........................Appendix E
1
INTRODUCTION
Test Purpose
This test project was conducted to determine the total radionuclide emissions from the North
Yellow Cake Scrubber and the Yellow Cake Dryer Baghouse exhausts in terms of Curies per dry
standard cubic foot (Ci/dscf).
These tests were for U-Nat only.
Test Location and Type of Process
Denison Mines (USA) Corporation is located about 5 miles south of Blanding, Utah. Uranium
ore is processed into yellow cake, which is shipped to other facilities for additional processing.
There are two yellow cake dryers with individual scrubbers. Both dryer enclosures discharge
into the Dryer Baghouse. The Packaging enclosure also discharges into the Dryer Baghouse.
The North Yellow Cake (NYC) dryer was the only operating dryer at the time of the test. The
South Yellow Cake Dryer is currently not operational. The Grizzly Baghouse serve as the main
dust control device for the raw ore unloading and conveying to the processing building.
Stack schematics are shown as Figures 1 and 2 in Appendix D.
Test Dates
One test run was completed on the NYC Dryer February 17, 2010 and one run on February 18th.
One run was completed on the Dryer Baghouse February 17, 2010.
Pollutants Tested and Methods Applied
The tests were a determination of radionuclide emissions in accordance with EPA Method 5/114.
Test run filters and front wash residues were sent to Test America located in Richland,
Washington for radionuclide analysis.
2
Test Participants
Test Facility Ryan Palmer
State Agency None
TETCO Dean Kitchen Doug Olsen
Joseph Kitchen
Deviations From EPA Methods
None
Quality Assurance
Testing procedures and sample recovery techniques were according to those outlined in the
Federal Register and the Quality Assurance Handbook for Air Pollution Measurement Systems.
3
SUMMARY OF RESULTS
Emission Results
Table I presents the findings of the test in Curies per dry standard cubic foot. Tables IV-VI in
Appendix A have more detailed information.
Table I. Measured Radionuclide Emissions
Run #
North Yellow Cake
Scrubber
Yellow Cake Dryer
Baghouse
pCi/dscf pCi/hr pCi/dscf pCi/hr
1 4.080E-01 2.938E +04 2.881E-01 4.007E+04
2 3.856E+02 2.973E+07
AVE 1.930E+02 1.488E+07 2.881E-01 4.007E+04
Process Data
The process was operated according to standard procedures. All pertinent process data was
available for recording by agency personnel. Scrubber water flow, pressure drop readings (Δp)
were recorded and are found in Appendix D. The Dryer Baghouse pressure drop readings (Δp)
were recorded and are found on the test run sheets. Production data will be submitted by Denison
Mines.
Description of Collected Samples
The test filters for the North Yellow Cake Scrubber were heavily covered with a white or pinkish
white colored particulate. The front washes were clear in appearance.
The test filters for the Yellow Cake Dryer Baghouse were lightly colored with a tan colored
particulate. The front wash was clear in appearance.
Discussion of Errors or Irregularities
None
4
Percent Isokinetic Sampling
Each of the tests were isokinetic within the ±10% of 100% criterion specified in the Federal
Register. They also meet the Utah State Department of Environmental Quality, Division of Air
Quality specification of isokinetic sampling point by point. Isokinetic values for each test run are
presented in Table II.
Table II. Percent Isokinetic Sampling
Run #
North Yellow Cake
Scrubber
Yellow Cake Dryer
Baghouse
1 103 99
2 100
5
SOURCE OPERATION
Process Control Devices Operation
All process control devices were operated normally. Recorded scrubber water flow, pressure and
baghouse Δp readings were recorded and are found on the test run sheets or in Appendix D.
Process Representativeness
The facility was operated normally. Production data was retained by Denison Mines.
6
SAMPLING AND ANALYSIS PROCEDURES
Sampling Port Location
The inside diameter of the North Yellow Cake Scrubber stack is 18.0 inches. The two, four-inch
diameter sample port are located 6.3 diameters (9.5 feet) downstream from the last disturbance
and 6.3 diameters (9.5 feet) upstream from the next disturbance. Figure 1 in Appendix D is a
schematic of the stack.
The inside diameter of the Yellow Cake Dryer Baghouse stack is 16.0 inches. The two, four-inch
diameter sample ports are located 28.38 diameters (454 inches) downstream from the last
disturbance and 3.56 diameters (57 inches) upstream from the next disturbance. The sample port
locations are depicted in Figure 2 in Appendix D.
Sampling Point Location
Table III shows the distance of each sampling point from the inside wall according to EPA
Method 1. Each point is marked and identified with a wrapping of glass tape and numbered.
These points are determined by measuring the distance from the inside wall.
Table III. Sampling Point Location
Sample Point
Distance (inches) from Inside Wall
NYC Scrubber Dryer Baghouse
1 0.58 0.70
2 1.89 2.34
3 3.49 4.74
4 5.81 11.26
5 12.19 13.66
6 14.51 15.30
7 16.11
8 17.42
Sampling Train Description
To determine the actual emission rates for this stack, 40 CFR 60, Appendix A, Methods 1-5/114
were followed.
All sampling trains were made of inert materials, (Teflon, stainless steel and glass) to prevent
interference of the sampled gas and particulate.
7
The stack analyzers used to conduct Methods 1-5/114 are constructed to meet the specifications
outlined in the CFR. The temperature sensors are K-type thermocouples. Heater, vacuum and
pitot line connections have been designed to be interchangeable with all units used by the tester.
A 316 stainless steel probe liner was used for the tests. Figure 4 in Appendix E is a sketch of the
Methods 5/114 sampling train.
Sample boxes were prepared for testing by following the prescribed procedures outlined in
Methods 5/114.
Sampling and Analytical Procedures
All sampling and analytical test procedures were as specified in 40 CFR 60, Appendix A,
Methods 5/114.
Quality Assurance
All equipment set-up, sampling procedures, sample recovery and equipment calibrations were
carried out according to the procedures specified in 40 CFR 60 and the Quality Assurance
Handbook for Air Pollution Measurement Systems.
8
APPENDIX
A: Complete Results and Sample Calculations
B: Raw Field Data
C: Laboratory Data and Chain of Custody
D: Raw Production Data
E: Calibration Procedures and Results
F: Related Correspondence
A
APPENDIX A
Table IV Complete Results, North Yellow Cake Scrubber
Table V Complete Results, Yellow Cake Dryer Baghouse
Nomenclature
Sample Equations
NYC Scrubber feb feb 2010
Symbol Description Dimensions Run #1 Run #2
Date 2/17/10 2/18/10
Filter #s 5492 5494
5493 5496
5495 5497
Begin Time Test Began 9:06 7:50
End Time Test Ended 18:12 16:06
Pbm Meter Barometric Pressure In. Hg. Abs 24.55 24.40
ΔH Orifice Pressure Drop In. H2O 1.186 1.283
Y Meter Calibration Y Factor dimensionless 1.004 1.004
Vm Volume Gas Sampled--Meter Conditions cf 356.948 372.019
Tm Avg Meter Temperature oF 92.8 91.7
√ΔP Sq Root Velocity Head Root In. H2O 0.2510 0.2775
Wtwc Weight Water Collected Grams 978.0 809.5
Tt Duration of Test Minutes 480 480
Cp Pitot Tube Coefficient Dimensionless 0.84 0.84
Dn Nozzle Diameter Inches 0.3920 0.3920
CO2 Volume % Carbon Dioxide Percent 3.10 3.20
O2 Volume % Oxygen Percent 16.40 16.20
N2 & CO Volume % Nitrogen and Carbon Monoxide Percent 80.50 80.60
Vmstd Volume Gas Sampled (Standard) dscf 281.861 292.641
Vw Volume Water Vapor scf 46.113 38.168
Bws (measured)Fraction H2O in Stack Gas (Measured)Fraction 0.141 0.115
Bws (saturated)Fraction H2O in Stack Gas (Saturated)Fraction 0.093 0.124
Bws Fraction H2O in Stack Gas *Fraction 0.093 0.115
Xd Fraction of Dry Gas Fraction 0.907 0.885
Md Molecular Wt. Dry Gas lb/lbmol 29.15 29.16
Ms Molecular Wt. Stack Gas lb/lbmol 28.11 27.87
%I Percent Isokinetic Percent 103.2 100.0 AVG
Ts Avg Stack Temperature oF 105.6 115.4 110.5
As Stack Cross Sectional Area Sq. Ft.1.767 1.767
PG Stack Static Pressure In. H2O 0.150 0.150
Pbp Sample Port Barometric Pressure In. Hg. Abs 24.48 24.33
Ps Stack Pressure In. Hg. Abs 24.491 24.341
Qs Stack Gas Volumetric Flow Rate (Std) dscfm 1.20E+03 1.28E+03 1.24E+03
Qa Stack Gas Volumetric Flow Rate (Actual) cfm 1.73E+03 1.95E+03 1.84E+03
Vs Velocity of Stack Gas fpm 9.80E+02 1.10E+03 1.04E+03
Curies Radionuclides per sample pCi 115.0 112840.0
Crad Concentration of Radionuclides pCi/dscf 0.408 385.592 193.000
ERrad Emission Rate of Radionuclides pCi/hr 2.938E+04 2.973E+07 1.488E+07
*If the measured moisture content is greater than the saturated moisture level (supersaturated),
the saturated moisture value will be used in all calculations (40 CFR 60, Method 4, Section 12.1.7).
TABLE IV
COMPLETE RESULTS
DENISON MINES CORPORATION, BLANDING, UTAH
NORTH YELLOWCAKE SCRUBBER EXHAUST
Dryer Baghouse feb 2010
TABLE V
COMPLETE RESULTS, PM
DENISON MINES CORPORATION
YELLOW CAKE DRYER BAGHOUSE
Symbol Description Dimensions Run #1
Date Date 2/17/10
Filter # 5491
Begin Time Test Began 10:59
End Time Test Ended 13:01
Pbm Meter Barometric Pressure In. Hg. Abs 24.55
ΔH Orifice Pressure Drop In. H2O 1.668
Y Meter Calibration Y Factor dimensionless 1.000
Vm Volume Gas Sampled--Meter Conditions cf 101.277
Tm Avg Meter Temperature oF 89.9
√ΔP Sq Root Velocity Head Root In. H2O 0.5492
Wtwc Weight Water Collected Grams 13.8
Tt Duration of Test Minutes 120
Cp Pitot Tube Coefficient Dimensionless 0.84
Dn Nozzle Diameter Inches 0.2730
CO2 Volume % Carbon Dioxide Percent 0.00
O2 Volume % Oxygen Percent 20.90
N2 & CO Volume % Nitrogen and Carbon Monoxide Percent 79.10
Vmstd Volume Gas Sampled (Standard) dscf 80.189
Vw Volume Water Vapor scf 0.651
Bws Fraction H2O in Stack Gas Fraction 0.008
Xd Fraction of Dry Gas Fraction 0.992
Md Molecular Wt. Dry Gas lb/lbmol 28.84
Ms Molecular Wt. Stack Gas lb/lbmol 28.75
%I Percent Isokinetic Percent 99.0
Ts Avg Stack Temperature oF 69.3
As Stack Cross Sectional Area Sq. Ft.1.396
PG Stack Static Pressure In. H2O -0.27
Pbp Sample Port Barometric Pressure In. Hg. Abs 24.48
Ps Stack Pressure In. Hg. Abs 24.460
Qs Stack Gas Volumetric Flow Rate (Std) dscfm 2.32E+03
Qa Stack Gas Volumetric Flow Rate (Actual) cfm 2.87E+03
Vs Velocity of Stack Gas fpm 2.05E+03
Curies Radionuclides per sample pCi 23.1
Crad Concentration of Radionuclides pCi/dscf 0.2881
ERrad Emission Rate of Radionuclides pCi/hr 4.007E+04
M5 Nomenclature
%I = percent isokinetic, percent
As = stack cross-sectional area (ft3)
ASΔP = see √ΔP
Btu = unit heat value (British thermal unit)
Bws = fraction of water in stack gas
CB = concentration of particulate matter, back half (gr/dscf,lb/dscf, etc.)
Cf = concentration of particulate matter, front half (gr/dscf,lb/dscf, etc.)
Cmetal = concentration of metals (ppm, μg/ft3, etc.) atomic symbol replaces "metal"
CO2 = percent carbon dioxide in the stack gas
Cp = pitot tube coefficient (0.84)
CX (avg) = species symbol replaces x .
CX (corr) = actual gas concentration corrected to required percent O2
ΔH = orifice pressure drop (inches H2O)
ΔH@ = orifice pressure (inches H2O)
ΔP = stack flow pressure differential (inches H2O)
Ds = diameter of the stack (feet)
Dn = nozzle diameter (inches)
EA = percent excess air
ERB = emission rate of back half particulate (lb/hr)
ERF = emission rate of front half particulate (lb/hr)
ERmmBtu = emission rate per mmBtu or ton of fuel etc.
ERX = emission rate of compound which replaces x
k-fact = multiplier of test point ΔP to determine test point ΔH
L = length of rectangular stack (inches)
mBtu = thousand Btu
Md = molecular weight of stack gas, dry basis (lb/lb-mol)
MF = mass of particulate on filter (mg)
MFP = mass of particulate matter on filter and probe (mg)
mmBtu = million Btu
MP = mass of particulate matter in probe (mg)
Ms = molecular weight of stack gas, wet basis (g/gmol)
N2 = percent nitrogen in the stack gas
O2 = percent oxygen in the stack gas
√ΔP = average of the square roots of ΔP (may also be referred to as ASΔP)
Pbm = absolute barometric pressure at the dry gas meter (inches Hg)
Pbp = absolute barometric pressure at the sample location (inches Hg)
PG = stack static pressure (inches H2O)
Ps = absolute stack pressure (inches Hg)
Pstd = absolute pressure at standard conditions (29.92 inches Hg.)
θ = time of test (minutes)
Qa = stack gas volumetric flow rate (acfm)
Qs = stack gas volumetric flow rate (dscfm)
QW = wet stack gas std. volumetric flow (ft3/min, wscfm)
Ts = stack temperature (oF)
Tstd = absolute temperature at standard conditions (528oR)
M5 Nomenclature
Tt = see θ
um = mean molecular speed (cm/s)
Vm = sample volume (ft3) at meter conditions
Vmstd = volume standard (dscf), sample volume adjusted to 68oF and 29.92 inches Hg.
Vs = velocity of stack gas (fpm)
Vwc = volume water vapor (scf) at 68oF and 29.92 inches Hg.
W =Width of rectangular stack (inches)
Wtwc = weight of the condensed water collected (grams)
Xd = fraction of dry gas
Y = meter calibration Y-factor (dimensionless)
Method 5
%I =Vmstd • (Ts + 460) • 1039 / (θ • Vs • Ps • Xd • Dn2)
As =(Ds2 / 4) • π
Bws =Vw / (Vmstd +Vw)
CB =MB • 0.01543 / Vmstd
Cf =Mfp • 0.01543 / Vmstd
CX (corr) =CX (avg) • (20.9 - desired %O2) / (20.9 - actual %O2)
Deq =2 • L • W / (L + W)
Dn des =√{0.0269 • (Pbm + 0.0735) / [(Tm + 460) • Cp • Xd • √[(Ts + 460) • Ms) / (Ps • ΔP)]}
EA =(%O2 - 0.5 %CO) / [0.264 %N2 - (%O2 - 0.5 %CO)]
ERB =CB • Qs • 0.00857
ERF =Cf • Qs • 0.00857
ERmmBtu =ERX / (mmBtu / hr)
K-fact =846.72 • Dn4 • ΔH@ • Cp
2 • Xd
2 • Md • Ps • (Tm + 460) / [Ms • (Ts + 460) • (Pbm + ΔH / 13.6)]
Md =CO2 • 0.44 + O2 • 0.32 + N2 •0.28
Ms =(Md • Xd) + (18 • Bws)
Ps =Pbp + (PG / 13.6)
Qa =Vs • As
Qs =Qa • Xd • Ps • Tstd / [(Ts + 460) • Pstd]
QW =Qs / Xd
Vmstd =Vm • Y • Tstd • (Pbm + ΔH / 13.6) / [Pstd • (Tm + 460)]
Vs =85.49 • 60 • Cp • √ΔP • √ [(Ts + 460) / (Ps • Ms)]
Vwc =Wtwc • 0.04715
Xd =1 - Bws
B
APPENDIX B
North Yellow Cake Scrubber
Preliminary Velocity Traverse and Sampling Point Location Data
Particulate Field Data
Yellow Cake Dryer Baghouse
Preliminary Velocity Traverse and Sampling Point Location Data
Particulate Field Data
North Yellow Cake Dryer Scrubber
Prelim 8 pts blank
Facility Denison Mines
Stack Identification North Yellow Cak<~Scrubber
Date
1 Barometl'ic Pressure
Pb""in I-Ig Pbp in I-Ig
N Static Pressure (PeJ inHp
B Estimated Moisture (Bw,)%
Sample Height from Ground feet
A
Comments:
Stal'k Din 18 Referellce:0
Ports are 9.5'Upstream from next disturbance
Ports are 9.5'Downstream fr0111 last disturbance
Traverse Percent Distance From:Ports
Point Diameter II)Reference A B C D I!:F
1 3.2 0.58 0.58
2 10.5 1.89 1.89
3 19.4 3.49 3.49
4 32.3 5.81 5.81
5 67.7 t2.19 12.19
6 80.6 14.51 14.51
7 89.5 16.1\16.11
8 96.8 17.42 17.42
Averages:
Ts----
fiP ----
L Flow
L F10wl
t.P
Traverse Timc DGM L\P t.\H IJnH;p)Vacuum Temperatures (F)DGM Temp (T",)
Point Clock Min (0)(fi')(mill»Desired Actual (I'lll~)Stack (T,)Probe ProbeOut Filter Effluent Out In
1:1 1 flob 0 J2.Y;)-J I ;;:f(?(;0 ,~O ')J/t?2{~:;C~;,cr ./b (;;t..&2-
,.1 /J-!J<{;-})tJ iClf(j ,flZ ,fj).v II '/J-EC,]-7!'J.C I ;Y (;p 69,
2 )0 /L/;).JGCi I'lV/",7);73 if //7 J:F(y n l .J--G 7 /-7 72 '"7'7~./
2 l(.r Ih.U7?t/tt./'7/17;;l{;/j Jr.I ;"7 tJ zet)r-7'76 ;;",/
3 (pO lbO,9'.Jr"?,0/0 ·88 ,fj8 t;I t?'t'1;--.f8 u;9 p./7 u-r 79 !fr
3 7./J70,.T~O I (lfl .9t!,yr b !f r J.Ger z.~7-:rV '2-1;/2 J"?
4 ro 17'19'vi?,P/l).f'l ,Xr!/It7 /J.-72 UCf ).,J7 G</ElY Y7
4 Itf'F 1F}9.J;;f ,(J/(J ~/!.yr.,l 7 Iv'C-/7..{;,f z..lj cr v/f 6%tJ.r 9/'"/"'f
5 IZ-O J'1/%:J-O 1.t1{r 1,)-1.-/'}-]..q (t/(i U;U Z-G "3 rfC "y 77 92
5 i)f :tOr.7PO 1058 liJO /'X>r It/O :?6J,2.CY 1 GF 67 o/l Y'J
6 fJ{i ZJ!J/O dJ6->Id7 /./7 q ?7'Lt'O Jp'f ?-J-c.f (;,7 c;q /t/&
6 /6.f-12,)2 ZCO ,If';>I,(3 /./)IV 9'j'/2-62,Iler 1.0-rE7 1'7 lve;f!
7 //0 !2c.(},.,0/r ,PCl IJ))J'J /0 '17':t-&;I:;G 7 J..-J')C{;f'B t tAl
7 I/f/''?-JY<?7tJ j}/6),,1cf JJe{!I lv'/']-C7 :?cr1.7..rb G7 (po'I vC;/
8 ~/{)2GJ;JC/!/dJ£O ./J 1(/)!I IV';>1-cc-Ibb)"IZ-J?,(7 ICi i pc,
8 ??-...r 'J.,7&.!.(co .C{o tl]I,D 1/'It?~G7 >or;17,>~)b(It(;)Iv)
riO >~J,670
Barometric Pressures
~Upstream from next disturbance
9.5'Downstream from last disturbance
Pb",~'-I,.IT:in Hg
Pbp H'Cf /inHg
Po 1-,(r inH,O
Cp~
4-13 %
Port Reference 0.0"
A
"0
Page--Lof----L Run
N
i
Nozzle Calibration,-1..1L .)9.2 ,)tf;1.~
AvgDo I ?9XJ inches
GasBag 13 -OJ
Console----L
Y-Factor I,OV'jl
L\H@ 1'/71=in H20
Assumed Moisture
Probe J.7--(;
Portsare
Portsare
Stack Diameter 18"__
TETCO
Filter....~2 Sample BO~&=
)if<?"2 J:it7'.
/
Location:North Yellowcake Dryer Scrubber
Operator:__a/I?>Ie ,6 ~""
Plant:Denison Mines
Date z..~I 7 -/:0
(!&-/Field Data Sheet
Leak Check:Pre
fr'/nlll1 i (J1(.."r-
vacmHg ?t:0
Post
I (iviJ
/),r 0
PilotRate O(
InH10
eYe
r).0
Water Collcctcd g
TimcSampled min
Total _______..J _
Review
K=@Tm
Average ..j K=@TIll
Filter,Impinger.or Extra leak Check Information
Pre DGM Vac ("Hg)Rate (fe/min)Post DGM Vac ("Hg)Rate (fe/min)
e C V/'J "C
to t>
c,
Ifq Field Data Sheet
TETCO
Filter->W Sample Box ,1
/,7 LV"J
Page----"'=--v.~_Run
~("
Plant:Denison Mines Location:North Yellowcake Dryer Scrubber iDate:}-.~/7-1()Operator:#,/~/~:£tf'!.;,·0;p
N
Traverse Time DGM ~P .1H (In HlO)Vacuum Temperatures (1'1 DGM Temp (T..,)
Point Clock Min (0)(fl"')fmH1O)Desired Actual {mllp:)Stack (T,)Probe Probe Out Filter Emuent Out In A~1 l.J/7 MO ;;.P7Yorr ,0'(,0 It'/7 Id;J'<.f 10 '}lJ[/.>;J C;PJ/"67 Yb yJ-
1 J'/r-;.titr ~u:r Irt?~/'},J.2./<'>2-y-IPFW7 )-).F /-'J 9 CtJ;qr:;y~Stack Diameter -18"-PortReference -0.0"-
2 J-TO )/a e.g (),06.r I 'J-).1/'/-.2 r !C;Jq INC!,..'t7'h>7 ~7 '?~ICO Ports are 9.5'Upstream from next disturbance
2 //./-7"fiZ..zco ?(}6./'1,.'?--7 /r,l-l-"F un 12.6B ~;7 )-c";/67 9q V.P"Ports are 9.5'Downstream from last disturbance
3 )1/'0 J"lJ,7.r--1tJ'6Q /,.k/J.~7 'Ib;)');70 Uc }U;Cj IF'9&7 101 Assumed Moisture 4-13 %
3 J,/r .7i(.f;p[;O (1168 /rJ(7 lyCJ 7 fPO Y7 lz,t"if 2.h?to/"77 1;-:7'J Probe )7--'Cp 0.84
4 ']J{;~:J.r7r ;J6C ,&117 I/r;7>O l.JO 7 ;t/O Ib'/It c./'-;y...T1 .£./"-/ee:Ie/-Nozzle Calibration
4 J'ff J',59.-17.,,1"-0 (}6G /rj!.?/r;t-Y 'r /t:::-?>'/-J J.-?O .)£0 ;i/9?I?'.~r21J.,)9J-~~
5 ;Pi-~760 ~,t1fjO !,)-t'5 I-Jfj G Itlh lIf.>l.2e>ZcP '7 d-'-C Jr7 AvgDn •-'3 9'Pinches
5 )7.f-fY..2,'?79 JJ~'r /01..1 /rGli 7 /vt:;1,.,;-1 2--il 12,,,;"7 (,5'-qf 96 Gas Bag e -O:J
7ft"I.{Pl.l?.r 'Ii jr(;C )~6'6 Y /i/tt ftr {tJJ
,..
6 ,C/t JA/Z ZCC J-J7 fit(Console /
6 ypr Lf/9.C1'C/V t?,rr It O'er l,vE?t?IIC,?)All J.-70 ,tcr C'I <:;/1&Y-Factor I,OOV
7 ';I~o Y7').J;7r (1J7.f j,fr I~Y IV~?'-(&~),'1 b 67 rr It:;~H@ / ../~in li20
7 YJJ"1/t{J:'{;Iv ,t77CJ }r,!/,I~Y/"9'(/2 P'-f)j],er ~n (/y.r I t/"L,Barometric Pressures
8 If/O vJ1i.,17.r ,070 j,Yf /r'AY q,IIZ.bYCf ilft }./"/c(.I1 f.r-,/t/'."Pbm.J.~-inHg
8 'It/-i.f7I'J:-t::f .J't)·V "A..?/'/~;;f /0 li/fb J.::j7 jc;y '»7 57 CfF I p./Pb">IfI C-/£in Hg,IJ'()
1.1//2 lifO VtJJ,J-O ~f-'//-in H2OPu
Leak Check:Prc fi.:/'1 Post
ft.l/mint~r ,OC:Y
vacmHg /J;O I},O
>
PilotRate t:?<:V (/r 0
In H,G ,),,-0 ,M
r7~C;gWaterCollected
Time Samplccl j@O min
@Tm
@Tm
//.e h v"'JC r~
K=
K=
ReVIew./7VZ.
.,f/
L--~)J,i'tJ;;7~9r
,j
)Jt.f/y 8 j,j ;;O~J0
Filter.Impinger.or Extra leak Check Information-
Pre DGM Vac ("Hg)Rate (felmin)Post DGM Vac("Hg)Rate (felmin)
•J lf1r 0 Clo ,OC,2 )7./7cP:r 12.17 ClOb
Total
Average
A
Port Reference _0.0"
sQ
Page---I-0r--2..Run #--l=-
N
i
!2
/
Location:North Yellowcake Dryer Scrubber,..,/
Operator:P.If!;Lv~<'a
f
DGM t1H I,n H,O)Vacuum If-__r-----,_T_e_m,..:-pe_r_a_tu_re_s-r('_,,__-.-u -.-"'-'--"'-
(ll')
Stack Diamctcr 18"
Ports are 9.5'Upstrcam from next disturbance
Ports arc 9.5'Downstream from last disturbance
Plant:Denison Mines
Date:7 -I[-11/:>
Traverse
i/'!Field Data Sheet
I Xv"1 (P '7r,f-.JtJ
5 II 1/';7)O/l!t II II'1 ll;-t9?1 '-/b'/I
5 II In.J"1IJ7&'.5Voll,!t'vII1.601 II III;J I '11 ?-cur 9-1"-(61/I
6 II I iJO IlfYr,7/011 ,fV'?jll '11/,&'111 111?'12 61h I 118tfl
0,84Cp
4-13 %
Barometric Pressures
Pbm ).'1,'l c;/in Hg
Pb")-~atin Hg ;."I,).J
Po /-,1J-inH,o
Assumed Moisture
---Probe )7-L>
Nozzle Calibration
2.X.L .)y';',)f~~~
Avg D",)OClinches
Gas Bag /'''''--{/5'1'
Console ;-
Y.Factor;;tit?'r
~H@ Ink in H20
4 II I ICF0(1I,t7J'J17,)6 J/,)6'11 </I .L.?-t:;I tiel II I
4 II I 1l>7V,)'/fIj,[.!7J-il 701 IIF II't?-JrtJA"l2.i'71 'II I
8 II I }-YJ II ~f ~bdLt1e'Jf/'C(&/I /I.~I 9!II I r
i--1~I ~11-f:--'-~--¥""7L---fL-~::F---'~-JL-:~
Leak Check'Pre Post
a'/mm I cJ/-'
"').J.,..JvacinHg~
./1 /1PuotRate~
[nH,O ',2rr)
Water Collectcd g
Time Sampled min
Total ______-.J-__Review
K~@Tm
Average ,j K=(cl;Tl1l
Filter,Impinger,or Extra Leak Check Information
F/ifrr C/"7'
PreDGM Vac ("Hg)Rate (fe/min)Post DGM Vac ("Hg)Rate (ft3/min)
p-~IIlf].I),V t:!,t/VI to I;>,f(j 6;]..1'10 0,otlJ-
0.84Cp
4-13 %
A
Port Reference _0.0"
'0
Page )-.of 2 Run #L
?-7-C
N
i
Probe
Assumed Moisture
Location:North Yellowcake Dryer Scrubber
Operator:12,){(ore-?if!'/7
TETCO
Filter)'9'91 Sample Box---.;-~
DGM ~H (inHPl Vacuum If--.--__T..:.em-r-pe_r_at_u_re_sT'·...:.'.,__--.__---jI--=-.=..:.c:....:...:;.:.:.:E.-'-'-''''-
Stack Diameter 18"__
9.5'Upstream from nextdisturbance
9.5'Downstream from last disturbance
iff-II 11/'211//7116Jf;..-Crb!)Cu!3119'71
Date:).-1 L-I 12
3
Plant:Denison Mines
Point
Traverse
ff----.1
1
2
2
3
fL!i Field Data Sheet
If,{rIIYtfc!9'(C71Lt77t:f/~/ti 1('/'111 II
Nozzle Calibration
3 ?(,;:>Y?~~~
Avg Dn ,;J 7)IC:iinches
Gas Bag I:::_Cn:/
Console r
Y-Factor---r;;JC/(
~H@ ~inH,o
4
4
5
5
6
6
7
7
8
8
IJNbf'¢IJJOII II t97Jf/,))·J7,mWlI lit,rJ-./8'1J-.6;.IYOI ~rgll'9c/I''1C/
.J!4/"117.>3..0 7 711 I/rn-f F II I I2-/'&1 71 71 ~f?,II q~/1 9 f:;;
-.,~r:,.L/7 II --no,I II.,II I '"i II /I ¥
Barometric Pressures
Pbm )t-'I,Ct'Ci
Pbr .;JAj,..J J
Pc;f-,f'£:
in Hg
inHg
in H,o
,I.
vac In Hg _
Leak Check'
ft}/min
Pre Post
tOO")
17(.0
Pilot Rate _
InH,O _
{/,O
?"~,-.[,/
~q
Y{J9,<~g
'"iSv min
Total
Average
)lJ.,o/Q,-J -'Lf/'t/'C v Y8'G6
Water Collected
TimeSampled
Review ~~
K=
K=
@Tm
@Tm
Filter,Impinger,or Extra Leak Check Information
Pre DGM Vac ("Hg)Rate (fe/min)Post DGM Vac (UHg)Rate (fe/min)
7eIIJ(O{I [(to ,(J II 71).,r;/f 1FtC),0,'J..C0C::;0,?
Yellow Cake Dryer Bagholise
Prelim 6pts blank
Facility Denison Mines
Stack Identification North Yellow Cake Dryer Baghouse
Date
r Barometric Pressure
B Pbm in Hg Pbp in Hg
N Static Pressure (PG)in H2O
A Estimated Moistnre (Bws)1 %)
Sample Height from Ground feet
Comments:
Stack Dia.16 Reference:0
Ports are 57"Upstream from next disturbance
Ports are 468"D(wmstream from last disturbance
Traverse Percent Distance From:Ports
Point Diameter ID Reference A B C D E F
1 4.4 0.70 0.70
2 14.6 2.34 2.34
3 29.6 4.74 4.74
4 70.4 1].26 11.26
5 85.4 13.66 13.66
6 95.6 15.30 15.30
Averages:
Ts----
AP ----
LFlow
-JAP ----
KEY =>1L.'T_·S__-=A.:....P_L_F_IO_wl
____Field Data Sheet
TETCO
Filter6 ¥5(SampleBox~Run
I6"_~PortReference 0,0"
~Upstream from next disturbance
468"Downstream from lastdisturbance
Gas Bag Ambient Air
Console .>
Y.Factor"'T0 cD
i1H@ ~inH,O
I'7l <'I~"IPorts are-3r:-:'--1---=-:;;-p;-f---':'--'if"""7A"t-7f7"l"'\"t-::T-:;:-:---j~
Stack (T,)I Probe I Probe Out I Filter I Effluent II Out I In
0,84Cp
.t::j.:t .t1-5
inches
BAO
~
i
N
Probe
Nozzle Calibration
.z::}5 .f-f3
AvgDn '2..~:5
AssumedMoisture
Stack Diameter
Ports are
DGM Temp (Tm)Temperatures (Fl
Location'No Yellowcake Dryer Baghollse
Operator'--f<"'--'==--t
(Pori W511.l'\'-\11A1I J:i'rq 1,-1 qv{
(p<j(1'7111 2t{412§'f1~~II~I I <;;-~
-:("7 I[~~I ~~/LI 'l7"514''1 II £jlP I q1'~j J 1J{-tlt/50.lib'1J t51!II q~101-
Plant'Denison Mines{
I !Date 1--I I 1--Ito,F
Traverse I DGM
Pomt
~
U(.,2,1-:17)
17,:0 \
Barometric Pressures
Pb Z ..(,55'""Pb~1.-vt'l.(¥
Po -,1-1'
inHg
inHg
inH,O
Leak Check Pre '::::I-
ft"!mIn ().00 I
va,InHg 1.:>
Post ,J
()·OOl
IftJ
PltotRate 0 ~D
InHeO li
0.0
~
~
gWaterCollectedi2.a
TimeSampled (Z ()mIn
Review --4[""~~-\-----
\
K~
K=@Tm
1\s-B J .J
'-6'1.1 1/
s
~)z...,/
&11.0
15'1
/
'LO .0\
.~
III II /
I').1t~
[.1.')
W
10\.1,-rr 1_,5107_____,JLV V
,J ,t;t\'1v
Average
Total
Comments
C
APPENDIX C
North Yellow Cake Scrubber
Sample Recovery
Gas Analysis Data (ORSAT)
Yellow Cake Dryer Baghouse
Sample Recovery
Gas Analysis Data (Ambient)
Chain of Custody
Lab Analysis
Nortll Yellow Cake Dryer Scrubber
Method 5 6 imp
Facility:Denison Mine
Stack Identification:NYC Scrubber..::.....::.....:-~c....:...:_
Date:--------
lmpinger Number
2 I .l I 4 1-__-=-5-6
/Sample Box:AI JRun:
Initial Volume ofliquid (HzO)in impingers,(ml)
-d:-ro-p-o-u-t-.-----1 100 I 100 I:..-:....:.-:..-:.--,.-sl-·lie-a-G-el-
I
Final (g)-!:..Ll...L4~-+-!::;~"--t--+~":..,.p....JL..-f-L'':::-=---!.-:._l-.~~~=--H'i~~~
Initial (g)-=-':::"--=--+-=-:::'--~-+__.L--+---'_"_-+-_':--'---+-==---~~
Net (g)=====:::::::i:::::~~~~:!::£:!:::f:::===~====!:::=o~~========~
IMPINGERS
Filter Number
Total (g)===::::::::=====
Impinger Number
.l.......L I 3 I 4 1--::5,----.---6.,..--
Run:)..Sample Box:13/H
Initial Volume ofliquid (H20)in impingers,(ml)
--:d:-ro-p-o-u-t-.-----1 100 I 100 I--'------.--si-lie-a-G-el--,
Final (g)-~"':-'"..£.f-+-=---;':-L--+--=-':-=--.l..L.-+-~:....o::..~-+-~7-+u.:::.-+-:~-4-':,-+-­
In itia\(g)--'-----f---:::-",---+--'-<-:::...I..::::--+----,.:::....:::O---+---'---"'---f----
Net (g)==~================~="=::=======:::::!!========6::=====~b
IMPINGERS
Filter Number
Total (g)==~======
IMPINGERS
Run:Sample Box:
Filter Number
1--Impinger Number
...L 1 .l I ...1...=,--::,j",,=----.--6=---
drop out
I
Initial Volume ofliquid (H20)in impingers,(ml)
100 I 100 I SilieaGel
Final (g)
Initial (g)
Net (g)===:::!::======================
Total (g)========
IMPINGERS
Run:Sample Box:
Impinger Number
2 I 3 l 4 1--=-5-6
Filter Number
drop out
I
Initial Volume ofliquid (H20)in impingers,(ml)
I 00 I 100 I...:.-...:.----r-Si-lie-a-G-el-
Final (g)I IIn~:~~:~-----t----+-----+------------
Total (g)==========_..
Plant ()e":.5.-(}",,~
Analytical Method ORSAT
Dote 2+/'0
Test No._
Gas Bag No.£-0 ~
Ambient Temp ~o
Operator --l.~-+__
Gas
Oz (Net is Actual O2
Reading Minus Actual
CO2 Reading).
Nz(Net is 100 Minus
Actual O2 Reading).
Aetual
Reading
Location_._~~.S......_
RUN
2 3 Average
Net Actual Net ActUl11 Net Net
Reading Reading Volume
).\1·!TI ).\3./5.I
I &·~I I'1·5~J~''1 {').:r-IG.vl I~'{
fc)··')[So.
RUN
2 3 Average
Actual Net Actual Net Actual Net Net
Gas Reading Reading R"ading Volume
COz ).J.),::2-}).Jj.).2-)r)-.),,/0
Date "2 J'lr )I ()
Test No.__7.--=-__
Gas Bag No.F -PC/!
Ambient Temp (.L
Operator 7:£K
Date-----Test No._
Gas Bag No.-----Ambient Temp _
Operator _
Oz (Net is Actual O2
Reading Minus Actual
CO2 Reading).
Nz(Net is 100 Minus
Actual O2 Reading).
Gas
Oz (Net is Actual O2
Reading Minus Actual
CO2 Reading).
Nz(Net is 100 Minus
Actual O2 Reading).
/9.'//~<)
Actual
Reading
RUN
2
Actual
R"ading
Net Actnal
Iknding
Net
Average
Net
Volume
t02 was ddermined using a gas analyzer
CO is not measured,as it has the same molecular weight as N2
Yellow Cake Dryer Baghouse
Method 5
Facility:Denison Mine
Stack Identification:.,;..N.-,;Y:....;C:....B=-a;;,:,g02:..:h..:..Ol:....;ts.,.:.e _
IMPINGERS
Run:I Sample Box:,
Date:-------"'~'-"--"1/
I:~::~;~£t1;:2 tffl W~r------
Total (g)I J./~
Filter Number ImpingeI'Number
..L ..l..I 3 I ...!.I 5
Initial Volume ofliquid (Hi))in impingers,(ml)
100 I 100 I I Silica Gel I
J 2 J 4
6===
Run:Sample Box:
Filter Number ImpingeI'Number
--.,L:-----r---=2-....'~==="'::-3~1 4 I ..L 6
]00
Initial Volume ofliquid (H20)iu impingers,(ml)
lOO I I Silica G:iJr---'-'--'---.----
IMPINGERS
Final (g)I I =1In~:~~:~===========_::=====
====:!::======================
Run:----Sample Box:
Filter Number
I---
100
ImpingeI'Number
..l..I .l-I 4 :=]r-----::-5-
Initial Volume ofliquid (H20)in impingers,(ml)
100 I I Silica GCi]
4
6
Final (g)I I ~Initial (g)__----1-
Nct(g)..._====:!::======================
Total (g)========
IMPINGERS
Filter Number
Run:
I==-
100
Sample Box:
ImpingeI'Number
..l..I .l-I 4 I ..L
Initial Volumeofliquid (HlJ)in impil1gers,(ml)
100 I I Silica Gel I
6
Final (g)I I
Initial (g)===:==:==:==::===__
Net (g)..===::!::=:==='==========!::===::!:====
Total (g)=======
'hain of
Custody Record
Temperature onReceipt ---
Drinking Vlater?Yes 0 No 0
o CO
THE LEADER IN ENVIRONMEN1AL TESTING
Time1.ReceiVedBy
QC Rcquirement!;($PiiI-:ify)
2.Received By
o 14 Days 0 21 Days
TAL-4124 (1007'
Client PrOjsctManaqer Date Cf?8tl1 ofCusliJdv Number
Tetco Dean Kitchen 2/2212010-....-...."...."............_.._....-
TeJephcne Number (Area Coae)/FIiIXNumber Lab NumberAddress I ofL391East620South801-492-9106 Page
fState IZiP Code
-_._.-.......•.Site Contact LabContaet Analysis (Attach listIfOilyAmericanFork:Ut 84003 ScottChristensen,RyanPalmer more space isneeded),.....
Proiec:t Name andLOC8.1iorriStare)CarJier;Waybl71 Number
Denison Mine 2010 1st Quarter ,
Spec/a/lnstruotions!Conlror;t/purcflasoOrder/Quote No.Containers 8<
<DI ~Conditions ofReoeiptMatrixPreservatives01;;""~I z---_...__..y""'___'~""'~_'
i '51 !"z '":'Sampfe I.D.No.andDescription §i a ~5 ::r •III~~III .,Date Time l 2 ...'"....(Comairlers foreach sample maybe comblfledon onelJne)~~(~t ¥~~~
5491 R1 Baghouse filter and beaker 2/17/2010 .11:00
,
'Xx'XXX
I I ._,,-,.f-····;........_.
5492,5493,5495 R1 NYC filters and beaker 2/17/2010 9:00 Ix X X X X
5494,5496,5497 R2 NYC filters and beaker 2/18/2010 7:50 X I i X X Ixix
.._'-"-~----i
i :..w."•••••••
I I !
.._.........,_......-1---:
Ij!
.....f·-i--.....-
J
!
I !,i :._...-.~"""------'-"'-...__._.._-:
iI
i i Ii!Sa7lple Disposal
_......_-'-"-POss/PIe HazardIdoot/fiealion fA fee maybeassessedifssmpfesare retainedfJ2l-:~on'Hazard 0 Ffammable o Skin Irritent o PoisonD o Unknown 0 Rli'.uunIo Cflent ~sPosal ByLab o ArchiveFer ___Monlhs longer than 1month}
.,..___"'__•__..J."l"'-'-_.f"'>__.A__-i
Comments
When Complete Email to:[e-mail]
liilitRIBUTION:WHiTe -Re!umed10Clienl with Report;CANARY..Stays withtile Sample;PINK..R$lrJ Copy
Analytical Data Package Prepared For
Radiochemical Analysis By
Denison Mines (USA) Corp.
DENISON MINES 2010 1st QTR
TestAmerica
2800 G.W. Way, Richland Wa, 99354, (509)-375-3131.
Data Package Contains ______ Pages
Assigned Laboratory Code:
Client Sample ID (List Order) Lot-Sa No. Work OrderSDG No.
Report No.: 43577
Order No.Report DB ID Batch No.
Results in this report relate only to the sample(s) analyzed.
5491 R1 BAGHOUSE
FILTER AND BE
9LV37T1041032 J0B250555-1 LV37T1AA 0061152
5492,5493,5495,R1 NYC
FILTERS
9LV4C810J0B250555-2 LV4C81AA 0061152
5494,5496,5497,R2 NYC
FILTERS
9LV4DJ20J0B250555-3 LV4DJ2AA 0082145
TestAmerica
rptSTLRchTitle v3.73
TestAmerica Laboratories, Inc.1

Certificate of Analysis

March 31, 2010

Denison Mines (USA) Corp
1050 17th Street, Suite 950
Denver, CO 80265

Attention: Steve Landau

Date Received at Lab : February 25, 2010
Project Name : Denison Mines 1st Qtr
Sample Type : Three (3) Stack Filter Samples
SDG Number : 41032

CASE NARRATIVE
I. Introduction

On February 25, 2010, three stack filter samples were received at TestAmerica’s Richland laboratory for
radiochemical analysis. Upon receipt, the samples were assigned the TestAmerica identification numbers
as described on the cover page of the Analytical Data Package report form. The samples were assigned to
Lot Numbers J0B250555.

II. Sample Receipt

The samples were received in good condition and no anomalies were noted during check-in.

III. Analytical Results/Methodology

The analytical results for this report are presented by laboratory sample ID. Each set of data includes
sample identification information; analytical results and the appropriate associated statistical
uncertainties.

The analysis requested was:
Alpha Spectroscopy
Uranium-234, -235, -238 by method RL-ALP-004 (RICH-RC-5067)*

* SOP ID’s changed effective 7-01-2008. Attached is a cross reference until ID’s are changed over in all systems.

TestAmerica Laboratories, Inc.2

Denison Mines (USA) Corp
March 31, 2010

IV. Quality Control

The analytical result for each analysis performed includes a minimum of one laboratory control sample
(LCS), and one reagent blank sample analysis. Any exceptions have been noted in the “Comments”
section.

V. Comments

Alpha Spectroscopy
Uranium-234, 235, 238
Sample R2 NYC Filters and Beaker was reanalyzed due a smeared spectra due to the samples elevated
activity. The sample was reanalyzed in batch #0082145, results are within acceptance limits. The
achieved MDA of the samples exceeds the detection limit. However, the sample activity exceeds the
MDA and detection limit; therefore the data can be accepted. Except as noted, the LCS, batch blank,
sample and sample duplicate results are within acceptance limits.

I certify that this Certificate of Analysis is in compliance with the SOW, both technically and for
completeness, for other than the conditions detailed above. The Laboratory Manager or a designee, as
verified by the following signature has authorized release of the data contained in this hard copy data
package.

Reviewed and approved:

________________________
Erika Jordan
Customer Service Manager
TestAmerica Laboratories, Inc.3
Isotope
Richland
SOP #
Old Richland
SOP #Method Reference Title
Asbestos RL-ASB-001 N/A NIOSH 7400 Fiber Counting by Phase Contrast Microscopy based on NIOSH 7400
Asbestos RL-ASB-002 N/A NIOSH 9002 Sample Prep and Analysis for Asbestos (bulk) by Polarized Light Microsopy based on NIOSH 9002
Alpha - Gross ARCHIVED RICH-RB-5035
Liquid Scintillation Anal/
Packard DETERMINATION OF GROSS ALPHA IN NASAL SMEARS BY LIQUID SCINTILLATION COUNTING
Alpha - Gross RL-GPC-001 RICH-RC-5014
9310 / EPA SW846
900.0 / EPA 600 DETERMINATION OF GROSS ALPHA AND GROSS BETA IN WATER BY METHOD 9310
Alpha - Gross RL-GPC-007 RICH-RC-5020
SM 7110B
EPA 680 DETERMINATION OF GROSS ALPHA AND GROSS BETA IN SOIL, SHORELINE SOIL, FOOD AND VEGETATION
Alpha - Gross RL-GPC-002 RICH-RC-5021 00-02 EPA 520 DETERMINATION OF GROSS ALPHA ACTIVITY IN WATER BY COPRECIPITATION
Alpha - Gross RL-GPC-008 RICH-RC-5036 ER100 / LANL PREPARATION OF AIR FILTERS FOR GROSS ALPHA/BETA AND COMPOSITING AIR FILTERS
Am RL-ALP-003 RICH-RC-5072
Mod RP 725 / DOE0089T EXT
Chromatography SEPARATION OF AMERICIUM, CURIUM, AND URANIUM BY EXTRACTION CHROMATOGRAPHY
Am RL-ALP-010 RICH-RC-5080
Am03/Pu11HASL 300
NAS-NS-3006 SEQUENTIAL SEPARATION OF PLUTONIUM AND AMERICIUM
Beta - Gross RL-GPC-001 RICH-RC-5014
9310 / EPA SW846
900.0 / EPA 600 DETERMINATION OF GROSS ALPHA AND GROSS BETA IN WATER BY METHOD 9310
Beta - Gross RL-GPC-007 RICH-RC-5020
SM 7110B
EPA 680 DETERMINATION OF GROSS ALPHA AND GROSS BETA IN SOIL, SHORELINE SOIL, FOOD AND VEGETATION
Beta - Gross RL-GPC-008 RICH-RC-5036 ER100 / LANL PREPARATION OF AIR FILTERS FOR GROSS ALPHA/BETA AND COMPOSITING AIR FILTERS
C14 RL-LSC-001 RICH-RB-5013 Mod H-02 / EPA 520 TRITIUM, CARBON-14, NICKEL-63 OR PHOSPHORUS-32 ANALYSIS IN URINE
C14 RL-LSC-008 RICH-RC-5022 EPA C-01 / EPA 520 CARBON 14 BY DIGESTION METHOD
C14 RL-LSC-009 RICH-RC-5040 Mod C14 / EPA 680 DETERMINATION OF CARBON-14 BY BENZENE SYNTHESIS
C14 RL-LSC-010 RICH-RC-5046 EPA C-01 / EPA 520 DETERMINATION OF CARBON-14 IN GRAPHITE AND SOIL
C14 RL-LSC-011 RICH-RC-5047 Mod H-02 / EPA 520 DETERMINATION OF CARBON-14 IN WATER BY DIRECT COUNTING
Cm RL-ALP-003 RICH-RC-5072
Mod RP 725 / DOE0089T EXT
Chromatography SEPARATION OF AMERICIUM, CURIUM, AND URANIUM BY EXTRACTION CHROMATOGRAPHY
Coliform RL-WC-001 RICH-WC-5001 9222B DETERMINATION OF TOTAL COLIFORM: MULTIPLE TUBE FERMENTATION TECHNIQUE
Coliform RL-WC-002 RICH-WC-5002 9131 TOTAL COLIFORMS BY MEMBRANE FILTRATION
Coliform RL-WC-005 RICH-WC-5007 9223 TOTAL COLIFORM BY THE COLILERT METHOD
Cr6+RL-WC-003 RICH-WC-5003 7196A, SW846 DETERMINATION OF HEXAVALENT CHROMIUM [Cr(VI)] IN WATER, SOIL, AND SIMILAR MATRICES
Cr6+RL-WC-004 RICH-WC-5005 3060 / SW846 DETERMINATION OF HEXAVALENT CHROMIUM (CrVI) IN SOLID MATRICES WITH ALKALINE DIGESTION
Fe RL-LSC-015 RICH-RC-5074
EXT Chromatography
ModFe55/PNL-ALO-435 SEPARATION OF IRON AND NICKEL BY EXTRACTION CHROMATOGRAPHY
Fe55 RL-LSC-016 RICH-RC-5023
R4-73-014 / EPA
HASL 300 DETERMINATION OF IRON-55 AND IRON-59 IN WATER
Fe59 RL-LSC-016 RICH-RC-5023
R4-73-014 / EPA
HASL 300 DETERMINATION OF IRON-55 AND IRON-59 IN WATER
Gamma RL-GAM-001 RICH-RC-5017
901.0 / HASL 300
ASTM D3649 PREPARATION OF ALL MATRICES FOR ANALYSIS BY GAMMA SPECTROSCOPY
H3 RL-LSC-001 RICH-RB-5013 Mod H-02 / EPA 520 TRITIUM, CARBON-14, NICKEL-63 OR PHOSPHORUS-32 ANALYSIS IN URINE
H3 RL-LSC-003 RICH-RB-5034 7500-3 / SM DETERMINATION OF TRITIUM IN URINE BY DISTILLATION
H3 RL-LSC-004 RICH-RC-5004 H3 / EPA LV539 DETERMINATION OF TRITIUM IN AIR
H3 RL-LSC-005 RICH-RC-5007 Mod '906.0 / EPA 600 SEPARATION OF TRITIUM IN WATER AND AQUEOUS COMPONENT OF WINE
H3 RL-LSC-007 RICH-RC-5024
H-3 by EE EPA LV539 /
HASL 300 DETERMINATION OF LOW LEVEL TRITIUM IN WATER BY ELECTROLYTIC ENRICHMENT
H3 RL-LSC-002 RICH-RC-5037
H-3 in Water/Tissue /
LV 539 DETERMINATION OF TRITIUM BY CRYOGENIC DISTILLATION
Update 7/01/08 1
TestAmerica Laboratories, Inc.4
Isotope
Richland
SOP #
Old Richland
SOP #Method Reference Title
H3 RL-LSC-006 RICH-RC-5048
H-3 in Water/Tissue /
LV 539 TRITIUM PREPARATION IN MILK SAMPLES
I129 RL-GAM-002 RICH-RC-5025
R4-73-014I/EPA ASTM
D2334 (Discontinued)DETERMINATION OF IODINE-131 AND 129 IN WATER BY SOLVENT EXTRACTION METHOD
I131 RL-GAM-002 RICH-RC-5025
R4-73-014I/EPA ASTM
D2334 (Discontinued)DETERMINATION OF IODINE-131 AND 129 IN WATER BY SOLVENT EXTRACTION METHOD
I131 ARCHIVED RICH-RC-5049 HASL 300 (1983)DETERMINATION OF IODINE-131 IN MILK BY BATCH ION-EXCHANGE
Metals ARCHIVED BHI-MT-0001 6010 ICP-AE SPECTROSCOPY, SPECTROMETRIC METHOD FOR TRACE ELEMENT ANALYSIS, METHOD 6010A FOR Bechtel
Metals RL-MT-001 RICH-MT-0001 6010B ICP-AES for TRACE ELEMENT ANALYSIS, METHOD 6010B
Metals RL-MT-002 RICH-MT-0002 SW486 3050B ACID DIGESTION FOR ICP ANALYSIS
Metals RL-MT-003 RICH-MT-0003 NIOSH 7300 DIGESTION PREP based on METHOD NIOSH 7300
Ni RL-LSC-015 RICH-RC-5074
EXT Chromatography
ModFe55/PNL-ALO-435 SEPARATION OF IRON AND NICKEL BY EXTRACTION CHROMATOGRAPHY
Ni63 RL-LSC-001 RICH-RB-5013 Mod H-02 / EPA 520 TRITIUM, CARBON-14, NICKEL-63 OR PHOSPHORUS-32 ANALYSIS IN URINE
Ni63 RL-LSC-017 RICH-RC-5069
EXT Chromatography
Mod RP300 / DOE0089T SEPARATION OF Ni-63 BY EXTRACTION CHROMATOGRAPHY
Np RL-ALP-013 RICH-RC-5009 NAS-NS-3060 DETERMINATION OF NEPTUNIUM-237 BY LIQUID-LIQUID EXTRACTION IN ALL MATRICES
Np RL-ALP-006 RICH-RC-5064 EXT Chromatography SEPARATION OF NEPTUNIUM BY EXTRACTION CHROMATOGRAPHY
P32 RL-LSC-001 RICH-RB-5013 Mod H-02 / EPA 520 TRITIUM, CARBON-14, NICKEL-63 OR PHOSPHORUS-32 ANALYSIS IN URINE
Pb RL-ALP-011 RICH-RC-5076 EXT Chromatography DETERMINATION OF LEAD-210 BY EXTRACTION CHROMATOGRAPHY
Po RL-ALP-007 RICH-RB-5001
NAS-NS-3037
HASL 300 DETERMINATION OF POLONIUM-210 IN URINE
Po RL-ALP-012 RICH-RC-5012
Po-01 / HASL 300
Mod U01 HASL 300 SEPARATION OF ISOTOPIC URANIUM AND POLONIUM-210 IN WATER, SOIL AND FILTERS
Prep - Bioassay ARCHIVED RICH-RB-0001 PREPARATION FOR RAPID BIOASSAY ANALYSES
Prep - Bioassay RL-PRP-001 RICH-RB-5002 Mod Pu06 / HASL 300 PREPARATION OF URINE AND BLOOD SAMPLES
Prep - Bioassay ARCHIVED RICH-RB-5004 ASTM D1429-95 DETERMINATION OF SPECIFIC GRAVITY OF URINE
Prep - Bioassay RL-RPL-002 RICH-RB-5036 Pub 6490,6601 / PNL PREPARATION OF SYNTHETIC URINE AND FECES USING RECIPES FROM HPS N13.30 PREFORMANCE TESTING
Prep - Bioassay RL-PRP-002 RICH-RB-5037
LA-10300-M R200
ASTM D3865 PREPARATION OF FECAL SAMPLES USING HYDROFLUORIC ACID DIGESTION
Prep - Bioassay RL-RPL-003 RICH-RC-5028 ICRP Publication 23 PREPARATION OF SYNTHETIC URINE AND FECES
Prep - Count RL-ALP-016 RICH-RC-5003 G-03 / HASL 300 COPRECIPITATION OF SOME ACTINIDES ON NEODYMIUM FLUORIDE FOR ALPHA-PARTICLE SPECTROMETRY
Prep - Count RL-ALP-015 RICH-RC-5039
G-03 / HASL 300
Anal Chem 1972 ELECTRODEPOSITION OF ACTINIDES
Prep - Count RL-ALP-014 RICH-RC-5085
Morrison & Freiser
NAS-NS-3050 ANHYDROUS ETHER EXTRACTION OF URANIUM
Prep - Env RL-KPA-001 RICH-RC-5015 ASTM / D5174-97 ENVIRONMENTAL SAMPLE PREPARATION FOR URANIUM BY LASER-INDUCED PHOSPHORESCENCE
Prep - Env RL-PRP-004 RICH-RC-5016 Sr02 / HASL 300 PREPARATION OF ENVIRONMENTAL MATRICES
Prep - Env RL-PRP-007 RICH-RC-5045 Mod Pu02 / HASL 300 PREPARATION OF MIXED BED RESINS AND PRE-FILTERS
Prep - Env RL-PRP-008 RICH-RC-5068 Mod ER100 / LA10300 PREPARATION OF SOIL, VEGETATION AND AIR FILTERS BY MIXED STRONG ACID LEACHING
Prep - Resin RL-ALP-017 RICH-RC-5018 Mod Pu11 / Mod 300 ION-EXCHANGE PREPARATION
Prep - Soil RL-PRP-003 RICH-RC-5013 Pu02A / HASL 300 PREPARATION OF SOIL SAMPLES
Prep - Soil RL-PRP-005 RICH-RC-5019
D5259 / ASTM
SW 846/3015/3051/3052 PREPARATION AND DISSOLUTION OF SEDIMENTS AND SOIL BY MICROWAVE BOMB DIGESTION
Update 7/01/08 2
TestAmerica Laboratories, Inc.5
Isotope
Richland
SOP #
Old Richland
SOP #Method Reference Title
Prep - Soil RL-PRP-006 RICH-RC-5032 Pu02A / HASL 300 COMPLETE DISSOLUTION BY MIXED ACIDS IN A TEFLON BEAKER
Prep - Soil RL-PRP-009 RICH-RC-5077 Mod ER100 / LA10300 PREPARATION OF SMALL SOIL SAMPLES FOR GAMMA SPEC AND/OR RADIOCHEM ANAL BY ACID DIGESTION
Prep - Urine RL-PRP-010 RICH-RC-5086
AnalyticaChemActa1992
RP800 / DOE00089T URINE AND WATER SAMPLE PREPARATION BY CALCIUM PHOSPHATE PRECIPITATION
Prep - Water RL-PRP-010 RICH-RC-5086
AnalyticaChemActa1992
RP800 / DOE00089T URINE AND WATER SAMPLE PREPARATION BY CALCIUM PHOSPHATE PRECIPITATION
Pu ARCHIVED RICH-RB-5015 Pu11 / HASL 300 RAPID DETERMINATION OF PLUTONIUM IN FECES
Pu RL-ALP-002 RICH-RC-5010 Pu11 / HASL 300 DETERMINATION OF ISOTOPIC PLUTONIUM IN ALL MATRICES
Pu RL-ALP-010 RICH-RC-5080
Am03 HASL 300
Pu11 / HASL 300 SEQUENTIAL SEPARATION OF PLUTONIUM AND AMERICIUM
Pu RL-ALP-001 RICH-RC-5087
AnalyticaChemActa1992
RP800 / DOE00089T DETERMINATION OF PLUTONIUM BY EXTRACTION CHROMATOGRAPHY
Ra RL-RA-001 RICH-RC-5005 903.1 / EPA 600 RADIUM-226 AND RADIUM-228 SEPARATION IN RADIOCHEMICAL MATRICES - ADAPTED FROM EPA 903.1 AND 904.0
Ra RL-RA-001 RICH-RC-5005 904.0 / EPA 600 RADIUM-226 AND RADIUM-228 SEPARATION IN RADIOCHEMICAL MATRICES - ADAPTED FROM EPA 903.1 AND 904.0
Ra RL-RA-002 RICH-RC-5027
Mod D2460/ ASTM
903.0 / EPA 600 DETERMINATION OF TOTAL RADIUM
Rn RL-LSC-019 RICH-RC-5082 913.0 / EPA DETERMINATION OF RADON-222 - ADAPTED FROM METHOD 913.0
S35 ARCHIVED RICH-RB-5020
Hillebrand, Lundeell, Bright,
Hoffman 1953 DETERMINATION OF SULFUR-35 IN URINE
Se79 RL-LSC-012 RICH-RC-5043 Selenium / NAS-NS-3030 RADIOCHEMICAL DETERMINATION OF SELENIUM-79
Solubility ARCHIVED RICH-RC-5035 Kalfward&Thomas PNL3716 DETERMINATION OF SOLUBILITY OF RADIOACTIVE PARTICLE CONSTITUENTS
Sr RL-GPC-005 RICH-RB-5007
Mod Sr02 / HASL 300 Mod
905.0 / EPA 600 DETERMINATION OF TOTAL STRONTIUM IN URINE
Sr RL-GPC-006 RICH-RB-5021
Mod Sr02 / HASL300 Mod
905.0 / EPA 600 DETERMINATION OF STRONTIUM IN FECES
Sr ARCHIVED RICH-RB-5022
Mod Sr02 / HASL300 Mod
905.0 / EPA 600 DETERMINATION OF TOTAL STRONTIUM IN URINE FOR RAPID ANALYSIS
Sr ARCHIVED RICH-RB-5031
Mod Sr02 / HASL300 Mod
905.0 / EPA 600 RAPID DETERMINATION OF TOTAL STRONTIUM IN FECES
Sr RL-GPC-003 RICH-RC-5006
Mod Sr02 / HASL300 Mod
905.0 / EPA 600 STRONTIUM SEPARATION IN ENVIROMENTAL MATRICES
Sr - Yt RL-GPC-004 RICH-RC-5071
Mod Sr02 / HASL300 Mod
905.0 / EPA 600 YTTRIUM-90 SEPARATION FOR STRONTIUM-90 DETERMINATION IN ALL MATRICES
Tc RL-LSC-014 RICH-RC-5065
EXT Chromatography Mod
RP550 / DOE0089T DETERMINATION OF TECHNETIUM-99 BY EXTRACTION CHROMATOGRAPHY
Tc RL-LSC-013 RICH-RC-5078 Tc01 / HASL 300 SEPARATION OF TECHNETIUM-99 IN ALL MATRICES
Th RL-ALP-008 RICH-RB-5006 Mod Th01 / HASL 300 SEPARATION OF THORIUM FROM URINE AND FECAL SAMPLES
Th RL-ALP-005 RICH-RC-5084
Mod Th01 / HASL 300 Anal
Chim Acta 1982 DETERMINATION OF THORIUM ISOTOPIC IN ENVIRONMENTAL MATRICES
U RL-ALP-012 RICH-RC-5012
Po-01 / HASL 300
Mod U01 / HASL 300 SEPARATION OF ISOTOPIC URANIUM AND POLONIUM-210 IN WATER, SOIL AND FILTERS
U RL-KPA-002 RICH-RC-5031 Mod U01 / HASL 300 SEPARATION OF TOTAL URANIUM IN WATER AND URINE
U RL-KPA-003 RICH-RC-5058 D5174 / ASTM DETERMINATION OF URANIUM BY PHOSPHORESCENCE ANALYSIS
U RL-ALP-004 RICH-RC-5067
EXT Chromatography Mod
RP725 / DOE0089T SEPARATION OF URANIUM BY EXTRACTION CHROMATOGRAPHY
U RL-ALP-003 RICH-RC-5072
EXT Chrom Mod RP725 & 800
/ DOE0089T SEPARATION OF AMERICIUM, CURIUM, AND URANIUM BY EXTRACTION CHROMATOGRAPHY
U RL-ALP-009 RICH-RC-5079
EXT Chromatography Mod
RP725 / DOE0089T DETERMINATION OF ISOTOPIC URANIUM IN ALL MATRICES
Update 7/01/08 3
TestAmerica Laboratories, Inc.6
DRINKING WATER ASTM METHOD CROSS REFERENCES
Referenced Method Isotope(s)TestAmerica Richland's SOP No.
EPA 901.1 Cs-134, I-131 RL-GAM-001
EPA 900.0 Alpha & Beta RL-GPC-001
EPA 00-02 Gross Alpha (Coprecipitation) RL-GPC-002
EPA 903.0 Total Alpha Radium (Ra-226) RL-RA-002
EPA 903.1 Ra-226 RL-RA-001
EPA 904.0 Ra-228 RL-RA-001
EPA 905.0 Sr-89/90 RL-GPC-003
ASTM D5174 Uranium RL-KPA-003
EPA 906.0 Tritium RL-LSC-005
TestAmerica Richland has adopted the internationally accepted approach to estimating
uncertainties described in “NIST Technical Note 1297, 1994 Edition”. The approach, "Law of Propagation
of Errors", involves the identification of all variables in an analytical method which are used to derive a
result. These variables are related to the analytical result (R) by some functional relationship, R = constants
* f(x,y,z,...). The components (x,y,z) are evaluated to determine their contribution to the overall method
uncertainty. The individual component uncertainties (ui) are then combined using a statistical model that
provides the most probable overall uncertainty value. All component uncertainties are categorized as type
A, evaluated by statistical methods, or type B, evaluated by other means. Uncertainties not included in the
components, such as sample homogeneity, are combined with the component uncertainty as the square root
of the sum-of-the-squares of the individual uncertainties. The uncertainty associated with the derived result
is the combined uncertainty (uc) multiplied by the coverage factor (1,2, or 3).

When three or more sample replicates are used to derive the analytical result, the type A
uncertainty is the standard deviation of the mean value (S/?n), where S is the standard deviation of the
derived results. The type B uncertainties are all other random or non-random components that are not
included in the standard deviation.

The derivation of the general "Law of Propagation of Errors" equations and specific example are
available on request.
Uncertainty Estimation
Drinking Water Method Cross References
Results in this report relate only to the sample(s) analyzed.
rptGeneralInfo v3.72
TestAmerica
TestAmerica Laboratories, Inc.7
Action Lev An agreed upon activity level used to trigger some action when the final result is greater than or equal to the Action
Level. Often the Action Level is related to the Decision Limit.

Batch The QC preparation batch number that relates laboratory samples to QC samples that were prepared and analyzed
together.

Bias Defined by the equation (Result/Expected)-1 as defined by ANSI N13.30.

COC No Chain of Custody Number assigned by the Client or TestAmerica.

Count Error (#s) Poisson counting statistics of the gross sample count and background. The uncertainty is absolute and in the same
units as the result. For Liquid Scintillation Counting (LSC) the batch blank count is the background.

Total Uncert (#s)
uc – Combined
Uncertainty.
All known uncertainties associated with the preparation and analysis of the sample are propagated to give a measure
of the uncertainty associated with the result, uc the combined uncertainty. The uncertainty is absolute and in the
same units as the result.

(#s), Coverage
Factor
The coverage factor defines the width of the confidence interval, 1, 2 or 3 standard deviations.

CRDL (RL) Contractual Required Detection Limit as defined in the Client’s Statement Of Work or TestAmerica “default”
nominal detection limit. Often referred to the reporting level (RL)

Lc Decision Level based on instrument background or blank, adjusted by the Efficiency, Chemical Yield, and Volume
associated with the sample. The Type I error probability is approximately 5%. Lc=(1.645 *
Sqrt(2*(BkgrndCnt/BkgrndCntMin)/SCntMin)) * (ConvFct/(Eff*Yld*Abn*Vol) * IngrFct). For LSC methods the
batch blank is used as a measure of the background variability. Lc cannot be calculated when the background count
is zero.

Lot-Sample No The number assigned by the LIMS software to track samples received on the same day for a given client. The
sample number is a sequential number assigned to each sample in the Lot.

MDC|MDA Detection Level based on instrument background or blank, adjusted by the Efficiency, Chemical Yield, and Volume
with a Type I and II error probability of approximately 5%. MDC = (4.65 *
Sqrt((BkgrndCnt/BkgrndCntMin)/SCntMin) + 2.71/SCntMin) * (ConvFct/(Eff * Yld * Abn * Vol) * IngrFct). For
LSC methods the batch blank is used as a measure of the background variability.

Primary Detector The instrument identifier associated with the analysis of the sample aliquot.

Ratio U-234/U-238 The U-234 result divided by the U-238 result. The U-234/U-238 ratio for natural uranium in NIST SRM 4321C is
1.038.

Rst/MDC Ratio of the Result to the MDC. A value greater than 1 may indicate activity above background at a high level of
confidence. Caution should be used when applying this factor and it should be used in concert with the qualifiers
associated with the result.

Rst/TotUcert Ratio of the Result to the Total Uncertainty. If the uncertainty has a coverage factor of 2 a value greater than 1 may
indicate activity above background at approximately the 95% level of confidence assuming a two-sided confidence
interval. Caution should be used when applying this factor and it should be used in concert with the qualifiers
associated with the result.

Report DB No Sample Identifier used by the report system. The number is based upon the first five digits of the Work Order
Number.

RER The equation Replicate Error Ratio = (S-D)/[sqrt(TPUs2 + TPUd2)] as defined by ICPT BOA where S is the original
sample result, D is the result of the duplicate, TPUs is the total uncertainty of the original sample and TPUd is the
total uncertainty of the duplicate sample.

SDG Sample Delivery Group Number assigned by the Client or assigned by TestAmerica upon sample receipt.

Sum Rpt Alpha
Spec Rst(s)

The sum of the reported alpha spec results for tests derived from the same sample excluding duplicate result where
the results are in the same units.
Work Order The LIMS software assign test specific identifier.

Yield The recovery of the tracer added to the sample such as Pu-242 used to trace a Pu-239/40 method.

Report Definitions
rptGeneralInfo v3.72
TestAmerica
TestAmerica Laboratories, Inc.8
16-Apr-10Date:
Parameter
MDC or
MDAUnits
Client Id
Work Order
Report No. :43577
Result +- Uncertainty ( s)
Tracer
Yield
41032SDG No:
TestAmerica
Qual
Sample Results Summary
Ordered by Method, Batch No., Client Sample ID.
2 RER2CRDLBatch
0061152 E2SS
5491 R1 BAGHOUSE FILTER AND
BE
3.10E-08U-234 UCI/SALV37T1AA 1.11E-05 89% +- 3.5E-04
3.10E-08U-235 UCI/SA4.20E-07 89% +- 1.3E-05
3.10E-08U-238 UCI/SA1.16E-05 89% +- 3.7E-04
5492,5493,5495,R1 NYC FILTERS
3.25E-08U-234 UCI/SALV4C81AA5.58E-05 85% +- 9.4E-06
3.25E-08U-235 UCI/SA3.18E-06 85% +- 6.1E-07
4.99E-08U-238 UCI/SA5.60E-05 85% +- 9.4E-06
0082145 E2SS
5494,5496,5497,R2 NYC FILTERS
2.29E-04U-234 UCI/SALV4DJ2AA 5.30E-02 92% +- 9.3E-03
1.54E-04U-235 UCI/SA2.84E-03 92% +- 7.5E-04
2.29E-04U-238 UCI/SA5.70E-02 92% +- 1.0E-02
9No. of Results:
TestAmerica RER2 - Replicate Error Ratio = (S-D)/[sqrt(sq(TPUs)+sq(TPUd))] as defined by ICPT BOA.
rptSTLRchSaSum
mary2 V5.2.5
A2002
TestAmerica Laboratories, Inc.9
16-Apr-10Date:
Parameter MDC|MDAUnits
Batch
Work Order
Report No. :43577
Result +- Uncertainty ( s)
Tracer
Yield
41032SDG No.:
TestAmerica
Qual
QC Results Summary
LCS
Recovery Bias
Ordered by Method, Batch No, QC Type,.
2
E2SS
0061152 BLANK QC,
4.01E-08U-234 UCI/SALV7C41AA 95%U 3.62E-08 +- 3.2E-08
2.79E-08U-235 UCI/SA 95%U -1.17E-09 +- 1.2E-08
3.29E-08U-238 UCI/SA 95%U 2.68E-08 +- 2.7E-08
0061152 LCS,
4.52E-08U-234 UCI/SALV7C41AC 75% 105% 0.13.42E-06 +- 9.6E-07
5.50E-08U-238 UCI/SA 75% 103% 0.03.51E-06 +- 9.8E-07
E2SS
0082145 BLANK QC,
1.39E-06U-234 UCI/SALW01G1AA 91%U 6.40E-07 +- 8.6E-07
1.23E-06U-235 UCI/SA 91%U -5.91E-08 +- 5.0E-07
9.91E-07U-238 UCI/SA 91%U 4.73E-07 +- 7.0E-07
0082145 LCS,
7.28E-07U-234 UCI/SALW01G1AC 88% 104% 0.06.78E-05 +- 1.3E-05
7.28E-07U-238 UCI/SA 88% 103% 0.07.05E-05 +- 1.4E-05
10No. of Results:
TestAmerica
U Qual - Analyzed for but not detected above limiting criteria. Limit criteria is less than the Mdc/Mda or Total Uncert or not identified by
gamma scan software.
Bias - (Result/Expected)-1 as defined by ANSI N13.30.
rptSTLRchQcSum
mary V5.2.5 A2002
TestAmerica Laboratories, Inc.10
Lot-Sample No.:
SDG:
5491 R1 BAGHOUSE FILTER AND BE
41032
Matrix:FILTER
Received Date:2/25/2010 10:30:00 AM
Lab Name:
Client Sample ID:
Parameter
Result Count
Error ( s)
Total
Uncert( s)
Yield
CRDL(RL)
MDC|MDA,
Action Lev
Rpt Unit,
Lc
Report No. :
Analysis,
Prep Date
Aliquot
Size
Primary
Detector
Collection Date:2/17/2010 11:00:00 AM
43577
Rst/MDC,
Rst/TotUcert22
TestAmerica
J0B250555-1
Total Sa
SizeQual
COC No. :
DENISON MINES 2010 1st QTR Ordered by Client Sample ID, Batch No.
SAMPLE RESULTS
16-Apr-10Date:FORM I
0061152Batch:LV37T1AAWork Order:9LV37T10Report DB ID:E2SS
1.11E-05 3.5E-04 3.10E-08 89%U-234 UCI/SA 3/18/10 03:24 p 0.00111 ALP8
G
(359.7)
0.06
0.0011
G

6.73E-09
4.20E-07 1.3E-05 3.10E-08 89%U-235 UCI/SA 3/18/10 03:24 p 0.00111 ALP8
G
(13.6)
0.06
0.0011
G

6.73E-09
1.16E-05 3.7E-04 3.10E-08 89%U-238 UCI/SA 3/18/10 03:24 p 0.00111 ALP8
G
(376.)
0.06
0.0011
G

6.73E-09
Ratio U-234/238 = 1.0
3No. of Results: Comments:
TestAmerica
U Qual - Analyzed for but not detected above limiting criteria. Limit criteria is less than the Mdc/Mda or Total Uncert or not identified by gamma scan software.
MDC|MDA,Lc - Detection, Decision Level based on instrument background or blank, adjusted by the sample Efficiency, Yield, and Volume.
rptSTLRchSample
V5.2.5 A2002
TestAmerica Laboratories, Inc.11
Lot-Sample No.:
SDG:
5492,5493,5495,R1 NYC FILTERS
41032
Matrix:FILTER
Received Date:2/25/2010 10:30:00 AM
Lab Name:
Client Sample ID:
Parameter
Result Count
Error ( s)
Total
Uncert( s)
Yield
CRDL(RL)
MDC|MDA,
Action Lev
Rpt Unit,
Lc
Report No. :
Analysis,
Prep Date
Aliquot
Size
Primary
Detector
Collection Date:2/17/2010 9:00:00 AM
43577
Rst/MDC,
Rst/TotUcert22
TestAmerica
J0B250555-2
Total Sa
SizeQual
COC No. :
DENISON MINES 2010 1st QTR Ordered by Client Sample ID, Batch No.
SAMPLE RESULTS
16-Apr-10Date:FORM I
0061152Batch:LV4C81AAWork Order:9LV4C810Report DB ID:E2SS
5.58E-05 9.4E-06 3.25E-08 85%U-234 UCI/SA 3/18/10 03:24 p 0.00098 ALP9
G
(1717.4)
(11.9)
0.001
G

7.05E-09
3.18E-06 6.1E-07 3.25E-08 85%U-235 UCI/SA 3/18/10 03:24 p 0.00098 ALP9
G
(98.1)
(10.5)
0.001
G

7.05E-09
5.60E-05 9.4E-06 4.99E-08 85%U-238 UCI/SA 3/18/10 03:24 p 0.00098 ALP9
G
(1123.5)
(11.9)
0.001
G

1.58E-08
Ratio U-234/238 = 1.0
3No. of Results: Comments:
TestAmerica
U Qual - Analyzed for but not detected above limiting criteria. Limit criteria is less than the Mdc/Mda or Total Uncert or not identified by gamma scan software.
MDC|MDA,Lc - Detection, Decision Level based on instrument background or blank, adjusted by the sample Efficiency, Yield, and Volume.
rptSTLRchSample
V5.2.5 A2002
TestAmerica Laboratories, Inc.12
Lot-Sample No.:
SDG:
5494,5496,5497,R2 NYC FILTERS
41032
Matrix:FILTER
Received Date:2/25/2010 10:30:00 AM
Lab Name:
Client Sample ID:
Parameter
Result Count
Error ( s)
Total
Uncert( s)
Yield
CRDL(RL)
MDC|MDA,
Action Lev
Rpt Unit,
Lc
Report No. :
Analysis,
Prep Date
Aliquot
Size
Primary
Detector
Collection Date:2/18/2010 7:50:00 AM
43577
Rst/MDC,
Rst/TotUcert22
TestAmerica
J0B250555-3
Total Sa
SizeQual
COC No. :
DENISON MINES 2010 1st QTR Ordered by Client Sample ID, Batch No.
SAMPLE RESULTS
16-Apr-10Date:FORM I
0082145Batch:LV4DJ2AAWork Order:9LV4DJ20Report DB ID:E2SS
5.30E-02 9.3E-03 2.29E-04 92%U-234 UCI/SA 3/30/10 12:35 a 0.00026 ALP84
Sample
(230.9)
(11.4)
1.0
Sample

7.57E-05
2.84E-03 7.5E-04 1.54E-04 92%U-235 UCI/SA 3/30/10 12:35 a 0.00026 ALP84
Sample
(18.5)
(7.6)
1.0
Sample

3.79E-05
5.70E-02 1.0E-02 2.29E-04 92%U-238 UCI/SA 3/30/10 12:35 a 0.00026 ALP84
Sample
(248.6)
(11.4)
1.0
Sample

7.57E-05
Ratio U-234/238 = 0.9
3No. of Results: Comments:
TestAmerica
U Qual - Analyzed for but not detected above limiting criteria. Limit criteria is less than the Mdc/Mda or Total Uncert or not identified by gamma scan software.
MDC|MDA,Lc - Detection, Decision Level based on instrument background or blank, adjusted by the sample Efficiency, Yield, and Volume.
rptSTLRchSample
V5.2.5 A2002
TestAmerica Laboratories, Inc.13
BLANK RESULTS
16-Apr-10Date:FORM II
SDG:41032
Matrix:FILTER
Lab Name:
Parameter Result
Count
Error ( s)
Total
Uncert( s)Yield
MDC|MDA,
Lc
Rpt Unit,
CRDL
Report No. :
Analysis,
Prep Date
Aliquot
Size
Primary
Detector
43577
Rst/MDC,
Rst/TotUcert22
TestAmerica
Total Sa
SizeQual
0061152Batch:LV7C41AAWork Order:LV7C41ABReport DB ID:E2SS
3.62E-08 3.2E-08 4.01E-08 95%U-234 UCI/SA 3/18/10 03:25 p 0.15 ALP11
G
0.9
(2.3)
0.15
G
U
1.21E-08
-1.17E-09 1.2E-08 2.79E-08 95%U-235 UCI/SA 3/18/10 03:25 p 0.15 ALP11
G
-0.04
-0.2
0.15
G
U
6.07E-09
2.68E-08 2.7E-08 3.29E-08 95%U-238 UCI/SA 3/18/10 03:25 p 0.15 ALP11
G
0.81
(2.)
0.15
G
U
8.58E-09
Ratio U-234/238 = 1.3
0082145Batch:LW01G1AAWork Order:LW01G1ABReport DB ID:E2SS
6.40E-07 8.6E-07 1.39E-06 91%U-234 UCI/SA 3/29/10 09:13 p 0.04 ALP85
Sample
0.46
(1.5)
1.0
Sample
U
3.62E-07
-5.91E-08 5.0E-07 1.23E-06 91%U-235 UCI/SA 3/29/10 09:13 p 0.04 ALP85
Sample
-0.05
-0.24
1.0
Sample
U
2.81E-07
4.73E-07 7.0E-07 9.91E-07 91%U-238 UCI/SA 3/29/10 09:13 p 0.04 ALP85
Sample
0.48
(1.3)
1.0
Sample
U
1.62E-07
Ratio U-234/238 = 1.4
6No. of Results: Comments:
TestAmerica
U Qual - Analyzed for but not detected above limiting criteria. Limit criteria is less than the Mdc/Mda or Total Uncert or not identified by gamma scan software.
MDC|MDA,Lc - Detection, Decision Level based on instrument background or blank, adjusted by the sample Efficiency, Yield, and Volume.
rptSTLRchBlank
V5.2.5 A2002
TestAmerica Laboratories, Inc.14
LCS RESULTS
16-Apr-10Date:FORM II
SDG:41032
Matrix:FILTER
Lab Name:
Parameter

Result
Count
Error ( s)
Total
Uncert( s)YieldMDC|MDA
Report
Unit
Report No. :
Analysis,
Prep Date
Aliquot
Size
Primary
Detector
43577
2 2
TestAmerica
Qual Expected
Expected
Uncert
Recovery,
Bias
0061152Batch:LV7C41ACWork Order:LV7C41CSReport DB ID:E2SS
3.42E-06 9.6E-07 4.52E-08 75%U-234 UCI/SA 3/18/10 03:25 p 0.17 ALP12
G

3.25E-06 105%1.92E-08
0.1Rec Limits:70 130
3.51E-06 9.8E-07 5.50E-08 75%U-238 UCI/SA 3/18/10 03:25 p 0.17 ALP12
G

3.40E-06 103%2.01E-08
0.0Rec Limits:70 130
0082145Batch:LW01G1ACWork Order:LW01G1CSReport DB ID:E2SS
6.78E-05 1.3E-05 7.28E-07 88%U-234 UCI/SA 3/29/10 09:13 p 0.05 ALP88
Sample

6.51E-05 104%3.85E-07
0.0Rec Limits:70 130
7.05E-05 1.4E-05 7.28E-07 88%U-238 UCI/SA 3/29/10 09:13 p 0.05 ALP88
Sample

6.82E-05 103%4.03E-07
0.0Rec Limits:70 130
4No. of Results: Comments:
TestAmerica Bias - (Result/Expected)-1 as defined by ANSI N13.30.
rptSTLRchLcs
V5.2.5 A2002
TestAmerica Laboratories, Inc.15
Te
s
t
A
m
e
r
i
c
a

La
b
o
r
a
t
o
r
i
e
s
,

In
c
.
16
Chain of
Custody Record
Temperature on Receipt _
Drinking Water?Yes 0 No0
TestAmerica ~~~~11~~1\1l\1
THE LEADER IN ENVIRONMENTAL TESTING
TAL-4124 (1007)
C!7a1i1ofCuskJdvNumberDate
1!
Tetco
GHent
5494,5496,5497 R2 NYCfilters and beaker
5492,5493,5495 R1 NYCfilters and beaker
ProjectManager
Dean KitchenAddress:..._..,......,...:"::.:"-"",:."...--::"...,........::....-.TeJephone Number {Area Code)IFaxNumber
391 East 620 South .801::492-9106
City .----siteconia"-:et~~~~~-'-'r':-La'-:b-C=-on~ta"'-Cl'---"'~---"-'--'--''-=-~r--:::::a::~---=--+--:-~:--:;:--;''"--:-::;---_.....L:'';::'~-=~==:..-.::.:-.:=::=:::=
Arnefica n Fork ScottChristensen,Ryan Palmer
ProiectName andLocation (State)CarlierJWaybJ7JNumber
Denison Mine 2010 ~s.tQuc:lrt~r
ContraetiPurchase Order/Quote No...Containers &
Matrix Preservatfves
Sampfe 1.0.No.andDescription j ~g 8 _~~6
(Containers for eachsamplemaybecombinedon one/ine)'~__~..._!~~~~i-=--r-=--=t-----r=c-t~~~t_tTT-r~-:;j;o~~..---r--7""'z_---~
5491 Rl Baghouse filter and beaker :
i
i X SS~
32-
G---------------+1 ----!r-----l!----j-----t!-·,.·-·---j··-···t·-,+,--+--1-;-+-1---tl--!!-+-I-+I--t-lr--t--!-r----tl--ili---t--t-+--t--t---------;
..+.......t.....-l--l····..l
ii
PO:;;;i1;JJeHazardIdentification Sample Dispos8J fWd:(A fee maybe ass(')S3edifs8I71pfesare retained
naNon-Hazard 0 Flammable 0 Skin l(filM!0 Poison8 0 Unknown 0 Retum To CHent lV DisposafByLab 0 Archive For Months fongsr than 1month)
Turn AroundTime Required I Q~Rcquirements (Specify)
o 24 Hour.:C)0 48
~"'_l
......._..~"'_..._="'{Date ITimeIDateITime3.ReceivedBy IDate ITime
Comments
When Complete Email to:[e-mail]
jjisfRIBUTION:WHITE··Re'iwwdto Clienl wiih Report;CANARY-Stays with the Sample;PINK-Field Copy
TestAmerica Laboratories, Inc.17
TestAmerica
EollIllllll/lIIUlllbII1II1IIal
250555
THE LEADE~IN ENVIRONMENTAL TESTING
Sample Check-in List
.r--lO j ~~~/h(,'
Date/Time Received:L~2.),1030 OM Screen Results (out)0 r L (in)Sl>~-/oot]cfYhInitials [1"15J
Client:'Tf1=<:cO SDO #:~tQ32 "NA [ ]SAP #:tJ'19-NA [ ]
Work Order Number:era 6'2.S(')SSSChaill of Custody #~---J./~vA=~--~-~-
Shipping Container ill:NA ~irBill #~__----:-NA [ ]
Item 1through'S for shipping container only.Initial appropriate response.
1.C~stody Seals on shipping container intact?Yes [No[No Custody Seal [<z'l
2.
3.
Custody Seals dated and signed?
Chain ofCustody record present?
Yes [ ]No [No Custody Seal [f~
yes [~J5 ]No [1.-]AI ~#-
4.Cooler temperature:__~NA [iB]5.Venniculite/packing materials is NA [ ]Wet [ ]Dry [eJ,9
Item 6 through 10 for samples.Initial appropriate response.
]Yes [NA[Sample holding times exceeded?
Number of samples in shipping container (Each sample may contain multiple bottles):__3""---_
]No [(~.
6.
7.
8.San:m}es have:
-Urtape
__custody seals
__hazard label::;,
___appropriate sample labels
(
Sample Locati.on,Sample Collector Listed?*
*For documentation only.No corrective action needed.
__leaking
___have air bubbles
(Only for,samples requiring head space)
9.
10.'\
11.
San:~les are:~ill good condition
_~broken
,\-tet'"5<f'l
Sample pH taken?NA ['£"6]pH<2 [J..pH>.2 []pH>9 [Amount ofHN03 Added-----
Yes [m No [
12.Were any anomalies identified in sample receipt?Yes [ ]No ~J>J
13.Description ofanomalies (include sample numbers):NA ~-.::.._
see other side for additional commentssam~~~ili~:_~~~,.~__'_/~,~~~(~~~~~,~~~D~:_2='_-_2_~_~~/~O~~!~O~,~?O~'~__~~_
Client Informed on by Person contacted.~__-,--~
.~No :ction necessary;,process~s."'l'.\
Project Manager Cj ili ,~lji ~te-=..=2:..:..,."':-r.-''-~....\l_.=3~~---I1 ~-rD~-.bib aY'J~,,7i>LS-023,Rev.10,10/09 '
D
APPENDIX D
North Yellow Cake Scrubber
Figure 1. Facility Schematic Representation
Yellow Cake Dryer Baghouse
Figure 2. Facility Schematic Representation
Process Data
(Retained by Denison Mines)
Facility:
Stack Identification:
∅
Denison Mines
8-15%
100-120
1,100
North Yellow Cake Scrubber
9.5'
9.5'
α: Distance upstream from next disturbance, feet
β: Distance downstream from last disturbance, feet
65'γ: Distance of Sample Level to Ground, feet
Yellow Cake ProcessingType:
Number of Ports
Process
Type:
Control Unit
2
Estimated Temperature, oF
Estimated Velocity, fpm
18"
Scrubber
∅: Stack Inside Diameter, inches
Estimated Moisture, percent
α
γ
β
Figure 1. Facility Schematic Representation
Facility:
Stack Identification:
∅
Estimated Temperature, oF
Estimated Velocity, fpm
16"
Baghouse
∅: Stack Inside Diameter, inches
Estimated Moisture, percent
Yellow Cake ProcessingType:
Number of Ports
Process
Type:
Control Unit
2
α: Distance upstream from next disturbance, inches
β: Distance downstream from last disturbance, inches
65'γ: Distance of Sample Level to Ground, feet
Denison Mines
0-2%
125
1,400
Baghouse
57"
454"
α
γ
β
Figure 2. Facility Schematic Representation
Facility Denison Mines,Blanding,Utah
Location North Yellow Cake Scrubber
Date r:e,~II (Z 0 10
Scrubber Flow (gpm)AP
\
Run#Time #1 #2 "H2O
I CJ:ofo '1,9 :I,I $.s
~C(30 q,'1 }-0 $·s·
10',0 ()111,""\t'1)-;.c.(
{ 0 :;u 1'T (;(1 ~.~
I rj:()D ct.0/7,0 )IA
{(:3D c ~1·6 )·z
"(2;00 C;;C;7,0 ;J ,I
IZ.'3 U it &'7,C }(O
IF:00 '1,,,\':J,o ;z,cr
/3 :so 1;f 70 ;;.,9
Iy :00 1,9,7,C::>),f5
14 :)0 0'1 '-=t.O 2·1-
I):00 ~'i -:;'u ~2'-f
,>:3b ~--.._---,--.~_.-=-_.
/&,0 D e,.}g;-.C:,3·S-
111 '3 q.e-;:5:'0 -3>..3-0
JI 11-()v '1r j/J";C ),7-
I /1:5D Cl·y <.~1-<1
I~'·()O q-~s·l?1,.'1
[¥:)()
Notes:
Denison Mine Process Data
Source:North Yellow Cake Date:}----1/-/tJ
Scrubber Flow GPM
Time #1 #2 1'1P
7,'((//f"(,7 J.Y
i~o f·;/&('/),7
JI:)t:1 ;/./~/3 Jt:.
Cf /t/v 1:1'r;I :J .).{
r.')t:J ({.7 h'),J.,r
I tJ.r00 /r c..j &,L )l.)-
flY,')tJ ff'1J-.e,y J.~-
1/:t:JO fJ;r j,e,'),J.tj
II.')(}0-0 c.l)..).L/
I).:c/o ;l,J-C,);),cj
/).')t:J C(.7-Lt·~'3.!>
I):O{/7.1-,(;r I ).)
I)I')()£(7-.e,l ::;,.2
I 'f,'C()51.7_C;,h ;J..l.,
/9,')()Y'J (;rJ.-).1,,
!J"'.l t?()y,~~I 2~)1/
If;)0 Y J c.?),0
(C.rVO ii,)IS,}~.t?
"
E
APPENDIX E
Calibration of the console dry gas meter(s), pitot tubes, nozzles diameters, and temperature
sensors were carried out in accordance with the procedures outlined in the Quality Assurance
Handbook. The appropriate calibration data are presented in the following pages. The nozzle
calibrations are recorded on the first page of the field data sheets.
Figure 3 Schematic of Method 5/114 Sampling Train
Meter Box Calibration Data and Calculations Forms
Post-test Dry Gas Meter Calibration Data Forms
Type S Pitot Tube Inspection Data
Sample Box Temperature Sensor Calibration
Figure 3
Schematic of Method 5/114 Sampling Train
Vacuum
Line
Check Valve
Vacuum
\'V>Guage
ImpingerF==",=~}--L..,
Box
Heated
Filter
Box~
Support
Chain
Support Track
~='============~~~f~~~~~Thermometer
~®
Duct
wall
Thennocuple
\\
\
Heated \.Sampling Probe
:~;r.~~······r~.1Ie::-_.....J:e-U
Sealed Flange /Manometer
~I Main')Valve
'.,By-pass/~~~-'"Valve
c1
lAir Tight
Pump I
t 'IMetering IIConsoleI
•Exit
~"\;
Facility New Calibration 2010
FINAL AVGIPb.,)
I 25.45 I 25.45 IF YVARIATION EXCEEDS2.000;.
ORIFICE SHOULDBE RECALIBRATED
ELAPSED I 1
::l ITIMEelMINl
AVG
72.75 6.50 2.90 5.8717 5.8376 0.994 1.720
74.25 6.75 2.90 6.1147 6.0621 0.991 ~
77.75 5.00 2.90 ~~0.995 1.704
AVG'0.994 ::l1.26
80.50 4.3708 4.4014 1.007 1.635
81.25 4.7045 4.6948 0.998 1.632
82.00 4.3878 4.4014 1.003 .hlli
AVG-1.003 0.29
81.25 12.00 §4.3876 4.3841 ~:LID
82.00 12.00 0.44 4.3632 4.3841 1.005 1.539
B2.50 12.00 0.44 4.3609 4.3841 1.005 1.537
AVG -1.003 0.33
EQUIPMENTID#:
72 65 68 79 79
72 68 69 79 81
72 70 75 81 85
72 80 80 80 82
72 80 81 82 82
72 81 82 82 83
71 80 81 82 82
71 B1 82 82 83
71 82 82 83 83
7.212
6.906
5.358
5.241
5.649
5.276
5.258
5.280
5.260
151.813 158.719
162.258 169.470
169.470 174.828
184.048 189.289
189.289 194.938
194.938 200.214
200.502 205.782
205.782 211.040
211.040 216.30
METERSERIAL #'1 '.££.00 I
CRITICAL ORIFICE SETSERIAL #:14535
linHg)
0.8137 13
0.8137 13
0.8137 13
0.5317 13
0.5317 13
0.5317 13
0.3307 13
0.3307 13
0.3307 13
RUN#I IAVG)
1)Selectthree critical orifices to calibrate the dry gas meterwhich bracket the expected operating range.
2)Record barometric pressure before and after calibration procedure.
3)Run attestedvacuum (fromOrifice Calibration Report),fora period oftime
necessary to achieve a minimum total volume of5 cubicfeet.
4)Record dataand information in the cells,YELLOW cells are calculated.
METHOD 5 DRY GAS METER CALIBRATION USING CRITICAL ORIFICES
K'I TESTED
.-------,------11 FACTOR IVACUUM
G
G
G
USINGTHECRITICAL ORIFICES AS CALIBRATION STANDARDS:
The following equations are used to calculate the standard volumes of air passed through the OGM.Vm(std).and the critical orifice.
V"(std),and the OGM calibration factor.Y.These equations are automatically calculated in the spreadsheet above.AVERAGE DRY GAS METER CALIBRATION FACTOR,Y =I 1.000 I
Vm'."d!=K,.Vm*Ph(/r+(~1l36)
Trn
AVERAGE aH@ =1 1.628 I
Temperature Sensors (4.2a-Oa)
Reference In Out
OF OF OF
(1)
(2)
(3)
Pbar *0
Vcrl.,M!=K"Jramb
=Net volume ofgas sample passed through DGM.corrected to standard conditions
K1=17.64 °Rlin.Hg (Engltsh),0.3658°KlmmHg (Metric)
Tm::;-Absolute DGMavg.temperature (OR -English.OK -Metric)
•Volume ofgas sample passed through the critical orifice,corrected to standard conditions
T3rrk<=Absolute ambient temperature ("R -English.QK -Metric)
K'::Average K'factor from Ciltical Orifice Calibration
-DGM calibration factor
aH@=2
(0.75Ii)!>H (Vm(std,\
V,,(std)Vm I
Vnl',Hd;34
73
125
36
73
124
35
74
125
Pre Calibration 2008
METHOD 5 DRY GAS METER CALIBRATION USING CRITICAL ORIFICES
1)Selectthreecritical orifices to calibrate the dry gas meterwhich bracket the expected operating range.
2)Record barometric pressure before andafter calibration procedure.
3)Run attested vacuum (from Orifice Calibration Report).for a periodoftime
necessaryto achieve a minimum total volume of 5 cubic feet.
4)Record data and informationIn the cells,YELLOW cells are calculated.
2010 Pre-Calibration
1.55~
1.544
1.540
1.562
1..lli.
1.570
Mil
1.451
1.444
1.07
-1.04
-0.03
IFY VARIATION EXCEEDS2.00%,
ORIFICESHOULD BERECAllBRATED
1
6.8034 6.7198 0.988
4.9540 4.5278 0.995
4.9317 4.9278 0.999
AVG=0.994
4.3998 4.3826 0.996
4.640 4.6748 1.007
5.2162 5.2591 1.008
AVG=~
5.0146 5.0834 1.014
4.2914 4.~572 1.015
4.2889 4.3572 1.016
AVG =1.015
FINAL AVG(Pb,,1
I 25.27 I 25.27
ELAPSED
DGM TIME (MIN)
AVG e
68.25 7.50 2.65
71.75 5.50 2.65
74.25 5.50 2.65
71.50 7.50 1.12
74.75 8.00 1.12
76.25 9.00 1.12
76.00 14.00 0.41
78.50 12.00 0.41
81.00 12.00 0.41
EQUIPMENT10 #:
67 65 68 67 73
67 68 70 73 76
67 70 72 76 79
69 68 73 70 75
69 73 73 75 78
69 73 75 78 79
70 72 75 79 78
70 75 78 79 82
70 78 81 82 83
5.861
7.996
5.862
5.226
5.545
6.251
5.175
5.196
6.019
693.153 701.149
701.149 707.010
707.010 712.872
726.302 731.528
731.528 737.073
737.073 743.324
713.0010 719.020
743.501 748.676
748.676 753.872
CRITICALORIFICE SETSERIAL#:,.____!
(inHg)
TESTEDK'
0.8137 11
0.8137 11
0.8137 11
0.5317 13
0.5317 13
0.5317 13
0.3307 13
0.3307 13
0.3307 13
2
2
RUN#I (AVG)
,i I FACTOR IVACUUM
G
G
G
USINGTHE CRITICALORIFICESAS CALIBRATION STANDARDS:
The foliowing equations are usedto calculate thestandardvoiumes ofair passedthrough the DGM,Vm(std),andthe critical orifice.
V"(std).and theDGM calibrationfactor,Y.These equationsare automaticalty calculated in the spreadsheetabove.AVERAGE DRYGAS METER CALIBRATiONFACTOR,Y =I 1.004 I
Vm"M}=K ,•Vm'Phar+eM/13.6)
Tm
(1)
(2)
(3)
Pbal"(3
Vcr,,,,,=K'·.JTamb
y=
=Net volume ofgas sample passed through DGM,corrected to standard conditions
K.=17.64'R/in.Hg (English),0.3858'Klmm Hg (Metnc)
T'T'=Absolute DGM avg.temperature ('R-English."K-Metric)
=Volume ofgassample passedthrough the criticalorifice,corrected to standard conditions
Tarne;:;:Absolute ambienttemperature('R -English,cK -Metric)
K';:;:Average K'factorfrom Critical Orifice Calibration
=DGM calibration factor
AVERAGE ~H@ =[1.522 I
z~H@ =(0.75 e)~H (Vm(std)
V,,(std)vm
Temperature Sensors
Reference In Out
OF OF OF
Vnl'.<idJ 32
72
120
31
72
120
32
73
119
o
PRE Console #5 Calibration 2010
AVG=
IF Y VARIATION EXCEEDS2.00%,
ORIFICE SHOULDBERECALIBRATED
1
4.38 1.027 1.57
5.11 1.028 1.56
4.38 1.025 1.54
AVG;1.027 0.00
0.00
0.00
0.00
Facility Dennison Mines---
FINAL AVG (P"",)
I 25.40 I 25.40
ELAPSED
::l TIME (MIN)
AVG e
82 §~4.263
88.5 8.75 1.15 4.97
94 7.50 1.15 4.276
75 70 75 89 94
75 75 83 94 102
75 83 86 102 105
§§
rn=t=R::§§
.0
.0
,0
.0
.0
.0
5.137
5.266
6.061
701.899
690.572
696.633690.572
696.633
685.4350
METER SERIAL1I:c=J
CRITICAL ORIFICE SET SERIAL II:~EQUIPMENT ID II:
(in Hg)
TESTEDK'
0.5317 14
0.5317 14
0.5317 14
1)Selectthree critical orifices to calibrate the dry gas meter which bracket the expected operating range.
2)Record barometricpressure before and after calibration procedure.
3)Run attested vacuum (from Onflce Calibration Report).fora period oftime
necessary toachieve a minimum totalvolume of5 cubicfeet.
4)Record data and information in the GREEN cells,YELLOW cells are calculated.
RUN II I (AVG)
METHOD 5 DRY GAS METER CALIBRATION USING CRITICAL ORIFICES
I f IFACTOR I VACUUM
G:
D:rnEE
D:rnEE
AVG=
USING THE CRITICALORIFICES AS CALIBRATION STANDARDS:
The following equationsareused to calculatethe standardvolumesofairpassed through the DGM,Vm(std),and the cntical onfice,
Vcr(std).and theDGM calibration factor,Y,These equationsare automatically calculated in the spreadsheet above,AVERAGE DRY GAS METERCALIBRATION FACTOR,Y =11.027 I
(1)
(2)
Vm,"d =K,*Vm *Pbar +(!JJf /13.6)
Tm
Pbar *0
=K'*-JTamb
=Net volume of gas sample passed through DGM.corrected to standard conditions
K,;1764 oR/In Hg (English).0 3858 'Klmm Hg (Metnc)
Tm;Absolute DGM avg temperature (OR·English,oK·Metnc)
=Volumeofgas sample passed through the critical orifice,corrected to standard conditions
Tamb =Absolute ambIent temperature (OR -English OK-MetriC)
AVERAGE AH@ =11.5561
2
AH@=(0.75a)AH (Vm(std))
Ve,(std)Vm
(3)VCl(nJ}y=-VmlSldj
K';Average K'factor f'om Cntlcal Onflce Calibration
=DGM calibration factor
postcalibration 2010 #3
METHOD 5 DRY GAS METER CALIBRATION USING CRITICAL ORiFICES
1)Selectthreecntlcal orifices tocalibrate the dry gas meterwhich bracket the expected operating range.
2)Record barometric pressure before and after calibration procedure.
3)Run at tested vacuum (from OrificeCalibration Report).fora period oftime
necessaryto achievea minimum total volumeof5 cubicfeet.
4)Record data and information 111 theGREEN cells,YELLOWcells are calculated
Facility Denison Mines
IFY VARIATION EXCEEDS 2.00%,
ORIFICE SHOULD BE RECAllBRATED
1
25.4
AVG(P..,)FINALI25.4 IMETERSERIAL#:1 ------I
CRITICAL ORIFICE SET SERIAL #:14535
K'TESTED TEMPERATURES OF ELAPSED
FACTOR VACUUM I DGM READINGS (FT')I AMBIENTI DGM INLET IDGM OUTLETI DGM TIME(MIN)IDGM ~H II (1)I (2),(3)IVARIA~ON (%)~I ORIFICE#IRUN #(AVG)(inHg)I INITIAL I FINAL I NET(Vm)I INITIAL FINAL INITIAL FINAL AVG e (in H20)Vm(STD)V",(STD)Y
73.75 6.50 1.90 4.8967 4.8746 ~1.605
80.25 5.75 1.90 4.2929 4.3121 ~1.586
84.75 5.75 1.90 4.3220 4.3121 0.998 1.573
AVG=0.999 0,09
82.25 7.50 1.15 4.3442 4.3804 1.008 1.57
84.75 7.25 1.15 4.2772 4.2344 0.990 1.57
88.50 10.00 1.15 5.8774 5.8405 0.994 1.56
AVG=0.997 :2M
72 66 72 74 83
72 72 77 83 89
72 77 81 89 92
75 81 82 82 84
75 82 84 84 89
75 84 88 89 93
E§±§::§§.0
.0
.0
5.237
5.798
5.145
5.223
5.180
7.167
875.672 881,470
881.470 886.615
885.615 891.838
892.056 897.293
897.293 902.473
902.473 909.640
0.6808 11
0.6808 11
0.6808 11
0.5317 14
0.5317 14
0.5317 14
G:
G:
D:~g
AVG=
USING THE CRITICALORIFICESASCALIBRATIONSTANDARDS:
The following equations are used to calculate the standard volumes of air passed through the DGM.Vm(std).and the cntJcalonflce.Vcr
(std).and the DGMcalibration factor,Y.These equations are automaticallycalculated In the spreadsheet above AVERAGE DRY GAS METER CALIBRATION FACTOR,¥=I0.9981
=K,*Vm*Pbar+(1'1H /136)
Tm(1)
(2)
(3)
Pbar *0
Vcr"""=K'*JTamb
Vcrrstd)y=--
VmrudJ
=Netvolume of gassample passedthrough DGM.correctedto standard condrtions
K,;1764'Rlin Hg (English).03858'KlmmHg (Metne)
Tm =Al:>solute DGM avg temperature ('R -English OK-Metne)
::Volume ofgas sample passed through the criticalOrifice,correctedto standard conditions
Tamb =AbSOlute ambient temperature (OR -English ':lK-MetriC)
K'=AverageK'factor from Cntlcal Onf,ce Calloratlon
=DGM calibration factor
AVERAGEll.H@=11.57SI
26H@::(0.75 e)t\H (Vm(Stdl)
Vc,(stdl Vm
POST Console #5 Calibration 2010
Type SPitot Tube Inspection Data
Date:_1_Y:-:./..:..-'.1I...::..0-.:l.'\_
Ot
Pitot Tube Identification:••'_
Technician:N__\_,--.:.M_..:f::..N=-.:::.'.:::tJM.:.....:::W~=--_
Is PA ""PB
Is 1.05 • Dt ~Dt ~1.50·Dt
-000-.Z =-'U:::........_in.
W=-00 B in.
W=(p in.
Z=~118 in.
13,<5°13,=I
132 <5°132 =I
Z S0.125 in.
W S0.03125 in.
PA=•L(zf(J in.
Pa =I '1{11 in.,
at <10·Cl.1=0
0.2 <10°Cl.2=I
(PA
t P8
z
II+='",:y:;,:3 inches
I
y =__3-..Lo/tt-+-_in.
The pitot tube meets the specifications for a calibration tactor ofO.84?_
Type S Pitot Tube Inspection Data
Date:-'--"-__Pitot Tube Identification:_-=---.:.._--=_
Dt Technician:...!..l:~~::ll~~::::::......~_
/
Z =__'_O_...:l_')in.
IUl=_
U2 =__..1.2..._
W =__,_O_I__in.
Z"0.125in.
W"003125 in.
Dt=in.
.:P-'!A_=.:.=:-in.
:3W=__....:...:.in.
Z=in.
.......-.-y ~3 inches ~1J,J
y '"---Ll.!:+~~--in.
The pitot tube meets the specifications for a calibration factor ofO.84?
Probe
Stack
AIR
ICE WATER
OlLWATER
ILICONEOIL
TETCO
Sample Box Temperature Sensor Calibration
Date:1/13/2010 Calibrator: Mike McNamara Reference:Omega CL3512A
Unit ID Thermocouple
Location
Temperature Temperature Temp. Diff.
Source Reference Sensor or Result
(Medium)(oF)(oF)(oF), P/F
A
Oven Water 33 32 1
Water 203 204 1
Probe Out Water 33 32 1
Water 203 203 -
Impinger Out Water 33 32 1
WaterWater 203 202 1
B
Oven Water 33 32 1
Water 203 204 1
Probe Out Water 33 32 1
Water 203 203 -
Impinger Out Water 33 34 1
WaterWate 203 202 1
C
Oven Water 33 33 -
Water 203 203 -
Probe Out Water 33 31 -
Water 203 202 1
Impinger Out Water 33 34 1
WaterWate 203 202 1
D
Oven Water 33 32 1
Water 203 203 -
Probe Out Water 33 32 1
Water 203 203 -
Impinger Out Water 33 34 1
WaterWate 203 202 1
E
Oven Water 33 33 -
Water 203 204 1
Probe Out Water 33 33 -
Water 203 203 -
Impinger Out Water 33 34 1
WaterWate 203 201 2
F
Oven Water 33 33 -
Water 203 204 1
Probe Out Water 33 32 1
Water 203 203 -
Impinger Out Water 33 33 -
WaterWate 203 202 1
Impinger Out G Water 33 34 1
Water 203 201 2
Impinger Out H Water 33 34 1
Water 203 202 1
Impinger Out I Water 33 33 -
Water 203 203 -
Impinger Out J Water 33 33 -
Water 203 202 1
APPENDIX F
The testing followed the same procedures as outlined in previous protocols and tests at this
facility.

ATTACHMENT H

1.00E-09
1.00E-08
1.00E-07
1.00E-06
1.00E-05
(L
o
g

S
c
a
l
e
)
Cottonwood Creek Dissolved Radionuclide Concentrations
(uCi/ml)
1.00E-11
1.00E-10
U-Nat.Th-230 Ra-226
1.00E-10
1.00E-09
1.00E-08
1.00E-07
1.00E-06
(L
o
g

S
c
a
l
e
)
Cottonwood Creek Suspended Radionuclide Concentrations (uCi/ml)
1.00E-12
1.00E-11
U-Nat.Th-230 Ra-226
1E-09
1E-08
0.0000001
0.000001
0.00001
(L
o
g

S
c
a
l
e
)
Westwater Creek Dissolved Radionuclide Concentrations
(uCi/ml)
1E-11
1E-10
U-Nat.Th-230 Ra-226
1E-08
0.0000001
0.000001
(L
o
g

S
c
a
l
e
)
Westwater Creek Suspended Radionuclide Concentrations (uCi/ml)
1E-10
1E-09
U-Nat Th 230 Ra-226
ENERGYLABORATORIES,INC.•2393Salt Creek Highway (82601)•Po.Box 3258 •Casper,WY 82602
TollFree 8882350515 •0350515 •Fax [phone] •[e-mail]
ANALYTICAL SUMMARY REPORT
April 14,2010
Denison Mines USA Corp
6425 S Hwy 191
Blanding.UT 84511
Workorder No.:C10030678
Project Name:1st Quarter Surface Water
Energy Laboratories,Inc.received the following 3 samples for Denison Mines USA Corp on 3/1912010 for analysis.
Sample 10 ClientSample JD Collect Date Receive Date Matrix Test
C10030678-001 Cottonwood
C10030678-002 Westwater
C10030678-003 Temp Blank
03/16/1008:08 03/19/10
03/16/1007:45 03/19/10
03/19/10
Aqueous Sample Filtering
Uranium,Dissolved
Uranium,Suspended
.Digestion,Total Metals
Gross Alpha minus Rn222 and Uranium
Radium 226,Dissolved
Radium 226,Suspended
Thorium,Isotopic
Thorium,Suspended Isotopic
Solids,Total Dissolved
Solids,Total Suspended
Aqueous Same As Above
Aqueous Temperature
Any exceptions or problems with the analyses are noted in the Laboratory Analytical Report,the QAlQC Summary
Report,orthe Case Narrative.
The results as reported relate only to the item(s)submitted for testing.
Ifyou have anyquestions regarding these test results,please call.
Report Approved By:sar~wSd~Fi-f)--
Reporting Supervisor
·..
ENERGYLABORATORIES-INC.·2393Salt Creek Highway (82601),PO Box 3258 •Casper,WY82602
TOIfFree 888.235.0515 •f '35.0515 •Fax [phone] •[e-mail]
CLIENT:Denison Mines USA Corp
Project:1st Quarter Surface Water
Sample Delivery Group:C10030678
ORIGINAL SAMPLE SUBMITIAL(S)
All original sample submittals have been returned with the data package.
Report Date:04/14/10
CASE NARRATIVE
SAMPLE TEMPERATURE COMPLIANCE:4°C (±20C)
Temperature ofsamples received may not be considered properly preserved by accepted standards.Samples that are hand
delivered immediately aftercollection shall be considered acceptable ifthere is evidence that the chilling process has begun.
GROSS ALPHA ANALYSIS
Method 900.0 for gross alpha and gross beta is intended as a drinking water method for low TDS waters.Data provided by
this method for non potable waters should be viewed as inconsistent.
RADON IN AIR ANALYSIS
The desired exposure time is 48 hours (2 days).The time delay in returning the canister to the laboratory for processing
should be as short as possible to avoid excessive decay.Maximum recommended delay between end of exposure to
beginning of counting should not exceed 8 days.
SOIUSOLlD SAMPLES
All samples reported on an as received basis unless otherwise indicated.
ATRAZINE,SIMAZINE AND PCB ANALYSIS
Data for PCBs,Atrazine and Simazine are reported from EPA 525.2.PCB data reported by ELI reflects the results for seven
individual Aroclors.VVhen 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.Ifso,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 E871017;California:02118CA;
Oregon:WY200001;Utah:3072350515;Virginia:00057;Washington:C1903
ISO 17025 DISCLAIMER:
The results ofthis 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.
~ENERGYLABORATORIES,INC••2393Salt CreekHighway(82601)•Po.Box3258 •Casper,WY82602~(tIf¥ToqFree888.2350515·f '350515·Fax307.234.f639 ~[e-mail]
'et:-1.k&f@fU'Y \..J
LABORATORY ANALYTICAL REPORT
Client:
Project:
LabID:
ClientSample 10:
Denison Mines USA Corp
1st Quarter Surface Water
C10030678-001
Cottonwood
Report Date:04/14/10
Collection Date:03/16/1008:08
DateReceived:03/19/10
Matrix:Aqueous
MCW
Analyses Result Units Qualifiers RL QCL Method Analysis Date 1By
PHYSICAL PROPERTIES
Solids,Total Dissolved TDS @ 180 C 331 mg/L 10 A2540C 03/22110 15:49/1r
Solids,Total Suspended TSS @ 105 C 494 mg/L 4 A2540 D 03/2211010:471 kre
METALS -DISSOLVED
Uranium 0.0060 mg/L 0.0003 E200.8 03125/10 01:44 I sml
METALS·SUSPENDED
Uranium 0.0014 mglL 0.0003 E200.8 03125/1000:35/sml
RADIONUCLIDES •DISSOLVED
Gross Alpha minus Rn &U 0.4 pCilL U E900.1 04/05/10 15:15 /cgr
GrossAlpha minus Rn &U Precision (:I:)0.4 pCi/L E900.1 04/05/10 15:15 /cgr
Gross Alpha minus Rn &U MDC 0.5 pCi/L E900.1 04/05/1015:151 cgr
Radium 226 0.09 pCilL U E903.0 03129/1023:42/jah
Radium 226 precision (t)0.08 pCilL E903.0 03129/1023:42/jah
Radium 226 MDC 0.11 pCi/L E903.0 03129/1023:42/jah
Thorium 230 0.05 pCilL U E907.0 03124/1008:53/dmf
Thorium 230 precision (:t)0.09 pCilL E907.0 03124/1008:53/dmf
Thorium 230 MDC 0.2 pCilL E907.0 03124/1008:531 dmf
RADIONUCLIDES -SUSPENDED
Radium 226 1.3 pCilL E903.0 03/30/10 11:26 I trs
Radium 226 precision (:I:)0.3 pCilL E903.0 03130/10 11:26 I trs
Radium 226 MDC 0.3 pCi/L E903.0 03/30/10 11:26/trs
Thorium 230 0.7 pCi/L E907.0 03/25/1016:31/dmf
Thorium 230 precision (:I:)0.2 pCi/L E907.0 03/25/10 16:31 1dmf
Thorium 230 MDC 0.2 pCi/L E907.0 03/25/1016:31 I dmf
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control limit.
MDe -Minimum detectable concentration
MCL •Maximum contaminant level.
ND -Not detected at the reporting limit.
U -Not detected at minimum detectable concentration
ENERGYLABORATORIES,INC.·2393Salt Creek Highway (82601)'PO Box 3258 •Casper,WY82602
70It Free 888.2350515 •('350515 •Fax [phone] •[e-mail]
LABORATORY ANALYTICAL REPORT
Client:
Project:
Lab 10:
Client Sample 10:
Denison Mines USA Corp
1st Quarter Surface Water
C10030678-002
Westwater
Report Date:04/14/10
Collection Date:03/16/1007:45
DateReceived:03/19/10
Matrix:Aqueous
Analyses Result Units Qualifiers RL
MCU
QCl Method Analysis DateI By
0.0057 mg/L
0.0005 mg/L
1140 mg/L
13 mg/L
PHYSICAL PROPERTIES
Solids,Total Dissolved TDS @ 180 C
Solids,Total Suspended TSS@ 105 C
METALS -DISSOLVED
Uranium
METALS-SUSPENDED
Uranium
RADIONUCLIDES -DISSOLVED
GrossAlpha minus Rn & U
GrossAlpha minus Rn & U Precision (±)
GrossAlpha minus Rn & U MDC
Radium 226
Radium 226 precision (±)
Radium 226 MDC
Thorium 230
Thorium 230 precision (:I:)
Thorium 230 MDC
RADIONUCLIDES -SUSPENDED
Radium 226
Radium 226 precision (:I:)
Radium 226 MDC
Thorium 230
Thorium 230 precision (±)
Thorium 230 MDC
0.3
0.3
0.5
0.18
0.1
0.11
-0.02
0.07
0.2
4.3
0.4
0.2
0.2
0.1
0.1
pCi/L
pCi/l
pCi/l
pCilL
pCiIL
pCi/l
pCill
pCill
pCill
pCi/L
pCiIL
pCiIL
pCilL
pCill
pCill
U
u
10 A2540 C 03122/1015:49 I Ir
4 A2540D 03122/10 10:471 kre
0.0003 E200.8 03125/1001:51 /sml
0.0003 E200.8 03/25/10 01 :10 1sml
E900.1 04/05/1015:15 I cgr
E900.1 04/05/10 15:15I cgr
E900.1 04/05/1015:15/cgr
E903.0 03129110 23:42/jah
E903.0 03129/10 23:42/jah
E903.0 03129/10 23:421 jah
E907.0 03124/1008:531 dmf
E907.0 03124/1008:53/dmf
E907.0 03124/1008:53 I dmf
E903.0 03/30/10 11:26 I trs
E903.0 03130/10 11:26 I trs
E903.0 03130/10 11:26/trs
E907.0 03125/1016:31/dmf
E907.0 03125/1016:31/dmf
E907.0 03125/1016:31/dmf
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
MDC -Minimum detectable concentration
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
U •Not detected at minimum detectable concentration
IiIIJYIiij ENERG YLASORATORIES,INC.•2393Salt CreekHighway (82601)•P.0 Box 3258 •Casper,WY82802~{"7 To~Free888.2350515·::~,,?350515'Fax[phone]·casper@energyl'•m'www.energylab.com
'et&I.Tr&".tfl/i'U
LABORATORY ANALYTICAL REPORT
Client:Denison Mines USA Corp
Project:1st Quarter Surface Water
Lab 10:C10030678-003
Client Sample 10:Temp Blank
Report Date:04/14/10
Collection Date:Not Provided
DateReceived:03119/10
Matrix:Aqueous
Analyses
PHYSICAL PROPERTIES
Temperature
Result Units
2.0 ·C
Qualifiers RL
Mew
QCL Method
E170.1
Analysis Date I By
03/19/1009:201 al
Report
Definitions:
Rl-Analyte reporting limit.
QCl •Quality control limit.
Mel·Maximum contaminant level.
NO •Not detected at the reporting limit.
ENERGYLABORATORIES,INC.·2393Salt Creek Highway (82601)•P.O.Box 3258 •Casper,WY82602
ToltFree 888.235.0515 •r '35.0515 •Fax [phone] •[e-mail]
QA/QC Summary Report
Client:Denison Mines USA Corp
Project:1st Quarter Surface Water
Report Date:04/14/10
Work Order:C10030678
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLlmlt Qual I
Method:A2540 C
Sample 10:MBLK1_100322
Solids,Total Dissolved TOS @ 180 C
Method Blank
NO mg/L
Run:BAL.1_100322B
10
Batch:100322_1_SLOS-TDS-W
03122/10 15:49
Sample 10:LCS1_100322 Laboratory Control Sample Run:BAL.1_100322B 03/22/10 15:49
Solids,Total Dissolved TOS@ 180 C 1010 mg/L 10 101 90 110
Sample 10:C10030693·001AMS Sample Matrix Spike Run:BAL-1_100322B 03/22/1015:50
Solids,Total Dissolved TDS @ 180 C 3900 mgll 10 104 90 110
Sample 10:C10030693·001AMSO Sample Matrix Spike Duplicate Run:BAL-1_100322B 03/22/1015:51
Solids,Total Dissolved TDS@ 180C 3890 mg/L 10 103 90 110 0.3 10
Qualifiers:
RL •Analyte reporting limit.
MDC -Minimum detectable concentration
NO •Not detected at the reporting limit.
LASORATORIES
ENERGYLABORATORIES,INC.•2393Salt CreekHighway (82601)'p.o.Box 3258 •Casper,WY82602
7O~Free888.235.0515·:''5.0515'Fax[phone]·casper@energyl,m-www.energylab.com
QA/QC Summary Report
Client:Denison Mines USA Corp
Project:1st Quarter Surface Water
Analyte Count Result Units
Method:A2540 0
Sample 10:MBLK1_100322A Method Blank
Solids.Total Suspended TSS@ 105 C NO mg/L
Report Date:04114/10
Work Order:C10030678
RL %REC Low Limit High Limit RPO RPOLimit Qual
Batch:100322A·SLOS-TSS-W
Run:BAL-1_100322A 03/22/1010:46
0.7
Sample 10:LCS1_100322A
Solids.Total Suspended TSS @ 105 C
Sample 10:C10030678·001AOUP
Solids,Total SuspendedTSS @ 105 C
Laboratory Control Sample
126 mg/L
Sample Duplicate
490 mg/L
4.0
4.0
63
Run:BAL-1_100322A
60 110
Run:BAL-1_100322A
0.8
03/22/1010:46
03/22110 10:46
25
Qualifiers:
Rl-Analyte reporting limit.
MOC •Minimum detectable concentration
NO •Not detected at the reporting limit.
ENERGYLABORATORIES,INC••2393 Salt CreekHighway (82601)'Po.Box3258 •Casper,WY82602
TollFree 888.235.0515 •:--'5.0515 •Fax [phone] •casper@energylr m'www.energylab.com
QA/QC Summary Report
Client:Denison Mines USA Corp Report Date:04/14/10
Project:1st Quarter Surface Water Work Order:C10030678
Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLlmit Qual
Method:E200.8 Batch:25619
Sample 10:MB·25619 Method Blank Run:ICPMS4-C_100324A 03125/1000:15
Uranium 0.00010 mg/L 7E-05
Sample 10:LCS2·25619 Laboratory Control Sample Run:ICPMS4-e_100324A 03/25/10 00:22
Uranium 0.105 mg/l 0.00030 105 85 115
Sample 10:C10030678·0020MS Sample Matrix Spike Run:ICPMS4-C_100324A 03/25/1001 :17
Uranium 0.0145 mg/l 0.00030 104 70 130
Sample 10:C10030678..o020MSO Sample Matrix Spike Duplicate Run:ICPMS4-C_100324A 03/25/10 01:23
Uranium 0.0145 mg/L 0.00030 104 70 130 0.2 20
Method:E200.8 Batch:R130953A
Sample10:C10030678-002BMS Sample Matrix Spike Run:ICPMS4-C_100324A 03125/1001:58
Uranium 0.0619 mg/l 0.00030 112 70 130
Sample10:C10030678-002BMSO Sample Matrix Spike Duplicate Run:ICPMS4-C_100324A 03125/10 02:04
Uranium 0.0620 mg/L 0.00030 113 70 130 0.2 20
Sample 10:LRB Method Blank Run:ICPMS4-C_100324A 03/24/1012:44
Uranium NO mg/L 8E-06
Sample 10:LFB laboratory Fortified Blank Run:ICPMS4-C_100324A 03124/1012:51
Uranium 0.0531 mg/L 0.00030 106 85 115
Qualifiers:
Rl -Analyte reporting limit.
MDC -Minimum detectable concentration
NO -Not detected at the reporting limit.
ENERGYLABORATORIES,INC.•2393 Salt CreekHighway (82601)'PO.Box 3258 •Casper,WY82602
w!IFree888.235.0515 •ryS.0515.Fax [phone]·[e-mail]
QA/QC Summary Report
Client:Denison Mines USA Corp
Project:1st Quarter Surface Water
Report Date:04/14110
Work Order:C10030678
IAnalyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual
Batch:GA-0311
04/05/1015:15
U
Run:G5000W_100402A
pCilL
pCi/L
pCi/L
~Method Blank
0.2
0.3
0.5
Method:E900.1
Sample 10:MB·GA-G311
Gross Alpha minus Rn &U
Gross Alpha minus Rn &U Precision (:t)
Gross Alpha minus Rn &U MOC
Sample 10:LCS·GA·0311 Laboratory Control Sample Run:G5000W_100402A 04/05/10 15:15
Gross Alpha minus Rn &U 28.1pCi/L 106 70 130
Sample10:C10030951-001JMS Sample Matrix Spike Run:G5000W_100402A 04/05/1015:15
Gross Alpha minus Rn &U 26.5pCilL 95 70 130
Sample10:C10030951·001JMSO Sample Matrix Spike Duplicate Run:G5000W_100402A 04/05/10 15:15
Gross Alpha minus Rn &U 28.0pCilL 101 70 130 5.8 23.6
Qualifiers:
RL •Analyte reporting limit.
MOC -Minimum detectable concentration
NO -Not detected at the reporting limit.
U -Not detected at minimum detectable concentration
ENERGYLABORATORIES,INC••2393 Salt Creek Highway (82601)'PO.Box3258 •Casper,WY82602
TO(IFree 888.235.0515 •:''5.0515 •Fax [phone] •casper@energyl''m'www.energylab.com
QA/QC Summary Report
Client:Denison Mines USA Corp
Project:1st Quarter Surface Water
Report Date:04/14/1 0
Work Order:C10030678
CountAnalyte
Method:E903.0
Sample10:C10030704-0010MS
Radium 226
Sample10:C10030704·0010MSO
Radium 226
Sample10:MB-RA226-4431
Radium 226
Radium 226 precision (:t)
Radium 226 MDC
Result Units
Sample Matrix Spike
15.8pCilL
Sample Matrix Spike Duplicate
16.0pCilL
~Method Blank
0.1 pCi/L
0.10pCilL
0.1 pCi/L
RL %REC Low Limit High Limit RPD RPOLlmlt Qual
Batch:RA226-4431
Run:G542M_100323A 03/29/10 23;42
99 70 130
Run:G542M_100323A 03/29/10 23:42
101 70 130 1.6 22.7
Run:G542M_100323A 03/30/10 01 :36
U
Sample Matrix Spike
22 pCilL
Laboratory Control Sample
13 pCilL
laboratory Control Sample
7.5 pCi/L
Sample Matrix Spike Duplicate
20 pCilL
Run:G542M_100323A 03/30/10 01 :36
93 70 130
Batch:25619
Run:G542M_100324A 03/30/10 11:26
90 70 130
Run:G542M_100324A 03/30/10 11:26
80 70 130 11 22.6
Run:G542M_100324A 03/30/10 11:26
94 70 130
Run:G542M_100324A 03/30/10 11:26
UpCi/L
pCi/L
pCi/L
~Method Blank
-0.5
0.7
1
Sample 10:LCS·RA226-4431
Radium 226
Method:E903.0
Sample 10:C10030678-0020MS
Radium 226
Sample 10:C10030678·0020MSO
Radium 226
Sample 10:LCS·25619
Radium 226
Sample 10:MB·25619
Radium 226
Radium 226 precision (:t)
Radium 226 MDC
Qualifiers:
Rl -Analyte reporting limit.
MDC •Minimum detectable concentration
NO -Not detected at the reporting limit.
U -Not detected at minimum detectable concentration
ENERGYLABORATORIES,INC.•2393 SaltCreek Highway (82601)'Po.Box 3258 •Casper,WY82602
TO!!Free 888.235.0515 •,':.'-'35.0515 •Fax [phone] •[e-mail]
QAlQC Summary Report
Client:Denison Mines USA Corp
Project:1st Quarter Surface Water
Report Date:04/14/10
Work Order:C10030678
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimlt Qual
Method:E907.0
Sample 10:LCS-RA·TH·ISO·1129
Thorium 230
Sample 10:C10030672-001CMS
Thorium 230
Laboratory Control Sample
4.94pCi/L
Sample Matrix Spike
13.1pCi/L
Run:EGG·ORTEC_100322A
93 70 130
Run:EGG-ORTEC_100322A
91 70 130
Batch:RA-TH-ISO-1129
03/24/1008:53
03/24110 08:53
Sample10:C10030672·001CMSO
Thorium 230
Sample 10:MB-RA·TH·ISO·1129
Thorium 230
Thorium 230 precision (±)
Thorium 230 MOC
Sample Matrix Spike Duplicate
10.7pCi1L
~Method Blank
0.01pCifL
0.09pCiIL
0.2 pCifL
Run:EGG-ORTEC_100322A
79 70 130 20
Run:EGG-ORTEC_100322A
03/24/10 08:53
38.9
03/24/1008:53
U
Method:E907.0
Sample 10:C10030678-0010MS
Thorium 230
Sample 10:C10030678-0010MSO
Thorium 230
Sample 10:LCS·25619
Thorium 230
Sample 10:MB·25619
Thorium 230
Thorium 230 precision (±)
Thorium 230 MOC
Sample Matrix Spike
12 pCilL
Sample Matrix Spike Duplicate
12 pCi/L
Laboratory Control Sample
4.9 pCilL
A Method Blank
-0.2 pCilL
0.10pCilL
0.2 pCilL
Batch:25619
Run:EGG-ORTEC_100324A 0312511016:31
112 70 130
Run:EGG-ORTEC_100324A 03125110 16:31
108 70 130 1 33.4
Run:EGG-CRTEC_100324A 03125/1016:31
104 70 130
Run:EGG-ORTEC_100324A 03/25/1016:31
U
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
NO -Not detected at the reporting limit.
U -Not detected at minimum detectable concentration
Energy Laboratories Inc
Workorder Receipt Checklist
Denison Mines USA Corp
login completed by:Diane Downing
Reviewed by:
Reviewed Date:
o
11111111111 ~IIIIIIIIIIIII ~111111111111111111111111
C10030678
Date Received:3/19/2010
Received by:al
Carrier name:FedEx
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 CorrectiveAction Comments:
None
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0"
Yes 0
Yes 0
Yes 0
Yes 0
Yes 0
2°C On Ice
Yes 0
Yes 0"
NoD
NoD
NoD
NoD
NoD
No D
No D
No D
No D
No D
No D
NoD
Not Present 0
Not Present 0
Not Present 0"
No VOA vials submitted 0
Not Applicable 0
Chain of Custody and Analytical Request Record
PLEASE PRINT (Provide as much information as possible.)
JiliiIiN
,«;tNetrltleli"4'
compa~ame:.
_ \~,,,{1(./'II\J
Report Ma~Address:.1l IV ~t)r~D.v>AI"
1iJ/Jlv-L1M IAI ir'-I~II
pro,~r;():~~;tl E:3hrltUL W~
Contact Name:Phone/Fax:~a~PeJ~/k1tt'2121
Sample Origin
State:l,AL~
Email:
page __)ofL
EPNState Compliance:
Yes XI No 0
Sampler:(Please Print)•
{1/fW iVmet:...
~r;;~v
Cooler Ib(s):
R~Temp 0C C
On lee:ON
Custody Seal f
On Bollie ~on Cooler
Intact y
Signature N
Match
~f'''fJJ-
Quote/Bottle Order:
Contact ELI prior to
RUSH sample submittal
for cnarges and
scheduling -See
Instruction Page
Comments:
5
u
H
Purchase Order:..
RQ~w t:..:r:'0()§
4:eJ-roJ-E4:.=
UJ 'EUJroCf)-g
g
(J)
Invoice Contact &.Phone:
~w.L-
D EOO/EOT(Electronic Data)
Format:._
D LEVEL IV
D NELAC
~~&[1,W@O@ [;d~@QD~~1IDo....~o (f)~~co;gOI ~._>0 >-1ii~oo~~~~3~'6l:3 g>(V'....«001.-~No....COI c:,~....Qj~§·o;:;is a.~._~E~I~''r-~~«·-IQ)~Z a.0>0!5 ~l
00
SAMPLE IDENTIFICATION Collection
(~ame,Location,Interval,etc.)Date
Special ReporUFormats:
Invoice Address:I
{S~m.'e
Dow
D POTWIWWTP
D State:o Other:----
7h!IMIwad 1:~~/6·/{)1 ~%6gr~.·~W Ixlxlxl xl xix
2/Alb;n-JAkr l"3 -If,-tD 1/)145 I~-w Ix 1XIXI K1)(1)('
3
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~
4 I~
5 1=I~
6 ~'--'
7 I~
8 19.'S'a
9 I~
10 It::d
Custody Received by (print):~mme:Signature:
Record Received by (print):DalelTime:Signature:
MUST bel----------------'Il..------------P!I!!l!!!!!!!'!"!!'!'P"!'!!!!!l~-~I!!!'JlIII!!!!!~---~!!'!!I!'!!!!!.....,.--......
S·d ~I~r_;;;e:~---Igne Sample Disposal:Return to Client:Lab Disposal:~//'
In certain circumstances,samples submitted to Energy Laboratories.Inc.may be subcontracted to other certified laboratories in order to complete the an~l~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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AnalyticalExcellencf
Helena,MT 877-472-0711 •Billings,MT 800-735-4489 •Casper,WY 888-235-0515
Gillette,WY 866-686-7175 •Rapid ,50 888-672-1225 •College Station,TX 888-690-2218~---""'----------
ANALYTICAL SUMMARY REPORT
June 22,2010
Denison Mines USA Corp
6425 S Hwy 191
Blanding,UT 84511
Workorder No.:C10050471
Project Name:Semi Annual Surface Water
Energy Laboratories,Inc.received the following 2 samples for Denison Mines USA Corp on 5/15/2010 for analysis.
The results as reported relate only to the item(s)submitted for testing.
If you have any questions regarding these test results,please call.
Report Approved By:s{!~.~I~-----
Reporting Supervisor
www.energylab.com
AnalyticalExcellence
Helena,MT 877-472-0711 •Billings,MT 800-735-4489.Casper,WY 888-235-0515
Gillette,WY 866-686-7175 .,Rapid pO 888-672-1225 •College Station,TX 888-690-2218
CLIENT:Denison Mines USA Corp
Project:Semi Annual Surface Water
Sample Delivery Group:C10050471
Report Date:06/22/10
CASE NARRAliVE
ORIGINAL SAMPLE SUBMITIAL(S)
All original sample submittals have been returned with the data package.
SAMPLE TEMPERATURE COMPLIANCE:4°C (±20C)
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 ifthere 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 lowTDS 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 ofexposure to
beginning ofcounting should not exceed 8 days.
SOIUSOLID SAMPLES
All samples reported on an as received basis unless otherwise indicated.
ATRAZINE,SIMAZINE AND PCB ANALYSIS
Data for PCBs,Atrazine and Simazine are reported from EPA 525.2.PCB data reported by ELI reflects the results for seven
individual Aroclors.When the results for all seven are NO (not detected),the sample meets EPA compliance criteria for
PCB monitoring.
SUBCONTRACTING ANALYSIS
Subcontracting ofsample analyses to an outside laboratory may be required.Ifso,ENERGY LABORATORIES will utilize its
branch laboratories or qualified contract laboratories for this service.Any such laboratories will be indicated within the
Laboratory Analytical Report.
BRANCH LABORATORY LOCATIONS
eli-b -Energy Laboratories,Inc.-Billings,MT
eli-g -Energy Laboratories,Inc.•Gillette,WY
eli-h -Energy Laboratories,Inc.-Helena,MT
eli-r -Energy Laboratories,Inc.-Rapid City,SO
eli-t -Energy Laboratories,Inc.-College Station,TX
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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 WVvW.energylab.com
ELI appreciates the opportunity to provide you with this analytical service.For additional information and services visit our
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AnalyticalExcellence'
Helena,MT 877-472-0711 •Billings,MT 800-735-4489 •Casper,WY 888-235-0515
Gillette,WY 866-686-7175 •Rapid (iD 888-672-1225 •College Station,TX 888-690-2218
Client:
Project:
LablD:
Client Sample 10:
LABORATORY ANALYTICAL REPORT
Denison Mines USA Corp
Semi Annual Surface Water
C10050471-001
Cottonwood
Report Date:06/22/10
Collection Date:05/14/1007:52
DateReceived:05/15/10
Matrix:Aqueous
Qualifier RLAnalysesResultUnits
PHYSICAL PROPERTIES
Solids,Total Dissolved TOS @ 180 C 409 mg/L
Solids,Total Suspended TSS @ 105 C 19 mg/L
METALS -DISSOLVED
Uranium 0.0116 mg/L
METALS-SUSPENDED
Uranium NO mg/L
RADIONUCLIDES -DISSOLVED
Gross Alpha minus Rn & U 0.3 pCilL
Gross Alpha minus Rn & U Precision (±)0.3 pCilL
Gross Alpha minus Rn & U MOC 0.5 pCilL
Radium 226 0.26 pCilL
Radium 226 precision (±)0.05 pCi/L
Radium 226 MDC 0.05 pCi/L
Thorium 230 0.03 pCi/L
Thorium 230 precision (±)0.07 pCi/L
Thorium 230 MOC 0.2 pCi/L
RADIONUCLIDES -SUSPENDED
Radium 226 0.12 pCi/L
Radium 226 precision (±)0.13 pCi/L
Radium 226 MOC 0.19 pCi/L
Thorium 230 0.004 pCi/L
Thorium 230 precision (±)0.1 pCifL
Thorium 230 MOC 0.2 pCi/L
u
U
u
u
MCU
QCL Method
10 A2540 C
4 A25400
0.0003 E200.8
0.0003 E200.8
E900.1
E900.1
E900.1
E903.0
E903.0
E903.0
E907.0
E907.0
E907.0
E903.0
E903.0
E903.0
E9070
E907.0
E907.0
Analysis Date1By
05/17/1015:261 kre
05/18/10 10:461kre
06/01/1015:091 ts
05/24/10 19:58/ts
05/25/10 17:01 1cgr
05/25/10 17:01 1cgr
05/25/1017:01 1cgr
05/24/10 20:54 1trs
05/24/10 20:54 1trs
05/24/1020:541 trs
05/24/1009:021 dmf
05/24/1009:021 dmf
05/24/1009:021 dmf
06/01/10 17.541 ep
06/01/1017:541 ep
06/0111017:541 ep
05/25/1019:21 1dmf
05/25/1019:21 1dmf
05/25/1019:21 1dmf
Report
Definitions:
RL -Analyte reporting limit.
QCL -Quality control I'm'.
MOC -Minimum detectable concentration
MCL -Maximum contaminant level.
NO -Not detected at the reporting limit.
U -Not detected at minimum detectable concentration
www.energylab.com
AnalyticalExcellence'
Helena,MT 877-472-0711 •Billings,MT 800-735-4489 •Casper,WY 888-235-0515
Gillette,WY 866-686-7175 •Rapid (,0 888-672-1225 •College Station,TX 888-690-2218
./
Client:
Project:
lab 10:
Client Sample 10:
LABORATORY ANALYTICAL REPORT
Denison Mines USA Corp
Semi Annual Surface Water
C10050471-002
Temp Blank
Report Date:06/22/10
Collection Date:05/14/10
DateReceived:05/15/10
Matrix:Aqueous
Analyses Result Units Qualifier RL
MCU
QCL Method Analysis DateI By
PHYSICAL PROPERTIES
Temperature 2.0 E170.1 05114110 10:00 I kbh
Report
Definitions:
Rl -Analyte reporting limit.
QCl -Quality control limit.
MCl -Maximum contaminant level.
NO -Not detected at the reporting limit.
www.energylab.com
Analytical Excellence Si
Helena,MT 877-472-0711 •Billings,MT 800-735-4489 •Casper,WY 888-235-0515
Gillette.WY 866-686-7175.Rapid Ci )888-672-1225.College Station,TX 888-690-2218
Client:Denison Mines USA Corp
Project:Semi Annual Surface Water
QA/QC Summary Report
Report Date:06/22/10
Work Order:C10050471
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLlmlt Qual
Method:A2540 C
Sample 10:MBLK1_100517
Solids,Total Dissolved TDS@ 180 C
Method Blank
NO mg/L
Run:BAL-1_100517A
10
Batch:100517_1_SLOS-TOS-W
05/17/10 15:24
Sample 10:LCS1_100517
Solids.Total Dissolved TDS @ 180 C
Sample 10:C10050464-002BMS
Solids.Total Dissolved TDS @ 180 C
Sample 10:C10050464-002BMSD
Solids,TotaIDissolved TDS @ 180 C
Laboratory Control Samp e
1000 mg/L
Sample Matrix Spike
8440 mg/L
Sample Matrix Spike Duplicate
8290 mg/L
Run:BAL-1_100517A 05/17/1015:24
10 100 90 110
Run:BAL-1-100517A 05/17/1015:25
16 95 90 110
Run:BAL-1-100517A 05/17/1015:25
16 94 90 110 1.7 10
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
NO -Not detected at the reporting limit.
Helena,MT 811-412-0711 •Billings.MT 800-735-4489 •Casper.WV 888-235-0515
Gillette,W'f 866-686-7175 •Rapid f 'P 888-612-1225 •College Station.IX 888-690-2218
www.energylab.com
AnalyticalExcellence'yw [
QA/QC Summary Report
Client:Denison Mines USA Corp
Project:Semi Annual Surface Water
Report Date:06/22/10
Work Order:C10050471
Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual
Sample Duplicate
170 mg/L
Laboratory Control Sample
178 mg/L
Run:BAL-1_100518A
Batch:100518A-SLDS-TSS-W
05/18/10 10:43
05/18/10 10:44
25
05/18/10 10:44
8.2
Run:BAL-1_10051BA
Run:BAL-1_10051BA
60 11089
4.0
4.0
0.7mg/L
Method Blank
NO
Method:A2540 0
Sample 10:MBLK1_100518A
Solids.Total Suspended TSS @ 105 C
Sample 10:LCS1_100518A
Solids.Total Suspended TSS@ 105 C
Sample 10:C10050417-o10AOUP
Solids.Total Suspended TSS@ 105 C
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
NO -Not detected at the reporting limit.
www.energylab.com
AnalyticalExc,lI,nce Si
Helena,MT 877-412-0711 •Billings,MT 800-735-4489 •Casper,WY 888-235-0515
Gillette,WY 866-686-7175.Rapid Ci )888-672-1225.College Station,IX 888-690·2218
QA/QC Summary Report
Client:Denison Mines USA Corp
Project:Semi Annual Surface Water
Report Date:06/22/10
Work Order:C10050471
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPDLimit Qual
Method:E200.8
Sample 10:LRB
Uranium
Method Blank
NO mg/L
Run:ICPMS2·C_100601A
8E-06
Batch:R133358
06/0111012:13
Sample10:LFB
Uranium
Sample10:C10050396-004BM$4
Uranium
Laboratory Fortified Blank
0.0503 mg/L
Sample Matrix Spike
105 mg/L
0.00030
0.00030
Run:ICPMS2-C_100601A
101 85 115
Run:ICPMS2-C_100601A
70 130
06/01/10 12:18
06/02/1002:43
A
Sample 10:C10050396-004BM$0
Uranium
Sample Matrix Spike Duplicate
104 mg/L 0.00030
Run:ICPMS2-C_100601A
70 130 1.1
06/02/1002:49
20 A
Qualifiers:
RL -Analyte reporting limit.
NO •Not detected at the reporting limit.
A -The analyte level was greater than four times the spike level.In
accordance with the method %recovery is not calculated.
MOC •Minimum detectable concentration
www.energylab.com
A"alytical Excelle"ce S(
Helena.MY 877-472-0711 •Billings.MY 800-735-4489"Casper,WY 888-235-0515
Gillette,WY 866-686-7175"Rapid Ci )888-672-1225.College Station,IX 888-690-2218
QA/QC Summary Report
Client:Denison Mines USA Corp
Project:Semi Annual Surface Water
Report Date:06122110
Work Order:C10050471
Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual
Batch:GA·0323
05/25/10 17:01Run:G5000W_100521B
pCi/L
pCilL
pCilL
3 Method Blank
0.6
0.4
0.5
Method:E900.1
Sample 10:MB-GA-0323
Gross Alpha minus Rn &U
Gross Alpha minus Rn &U Precision <±l
Gross Alpha minus Rn &U MOC
Sample 10:LCS-GA-0323
Gross Alpha minus Rn &U
Sample 10:C10050372·003CMS
Gross Alpha minus Rn &U
Sample 10:C10050372·003CMSO
Gross Alpha minus Rn &U
Laboratory Control Sample
29.8pCi/L
Sample Matrix Spike
28.9pCi/L
Sample Matrix Spike Oup cate
28.0pCifL
Run:G5000W_100521B 05/25/10 17:01
111 70 130
Run:G5000W_100521B 05/25/10 17:01
107 70 130
Run:G5000W_100521B 05/25/10 17:01
104 70 130 3 23.1
Qualifiers:
RL -Analyte reporting limit.
MOC -Minimum detectable concentration
NO -Not detected at the reporting limit.
www.energylab.com
A",lytical£xc,tt,"ce $1
Helena,MT 877-472-0711 •Billings,MT 800-735-4489 •Casper,WY 888-235-0515
Gillette,WY 866-686-7175 •Rapid Ci 888-672-1225 •College Station,TX 888-690-2218
QAlQC Summary Report
Client:Denison Mines USA Corp
Project:Semi Annual Surface Water
Report Date:06/22/10
Work Order:C10050471
05/24/1020:54
17.1 S4.7
Run:TENNELEC-3_100518B
70 13058
Sample Matrix Spike Duplicate
11.9pCi/L
IAnalyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual
Method:E903.0 Batch:RA226-4533
Sample 10:C10050346·001EMS Sample Matrix Spike Run:TENNELEC-3_100518B 05/24/1020;54
Radium 226 12.5pCi/L 62 70 130 S
•Spike response is outside ofthe acceptance range forthis analysis.Since the LeS and the RPD for the MS MSD pair are acceptable.the response is considered to be
matrix related.The batch is approved
Sample 10:C1 0050346-001 EMSO
Radium 226
Run:TENNElEC-3_100518B 05/24/1020:54
98 70 130
Batch:26135
Run:TENNElEC-3_100524A 06/01/10 17~54
102 70 130
Run:TENNElEC-3_100524A 06/01/10 17:54
97 70 130 4.4 22.4
Run:TENNELEC-3_100524A 06/01/1017:54
101 70 130
Run:TENNELEC-3_100524A 06/01/1017:54
Sample 10:MB-RA226-4533 3 Method Blank
Radium 226 0.2 pCilL
Radium 226 precision (±)0.05pCi/L
Radium 226 MOe 0.06pCi/L
Sample 10:LCS·RA226-4533 laboratory Control Sample
Radium 226 7.8 pCilL
Method:E903.0
Sample 10:C10050471-0010MS Sample Matrix Spike
Radium 226 25 pCi/L
Sample 10:C10050471-0010MSO Sample Matrix Spike Duplicate
Radium 226 24 pCi/l
Sample 10:LCS-26135 Laboratory Control Sample
Radium 226 25.8 pCilFilter
Sample 10:MB-26135 3 Method Blank
Radium 226 0.6 pCilFilter
Radium 226 precision (:t)0.4 pCilFilter
Radium 226 MOC 0.4 pCi/Filter
Run:TENNElEC-3_1005186 05/24/1020:54
Qualifiers:
RL -Analyte reporting limit.
MOC -Minimum detectable concentration
NO -Not detected at the reporting limit.
S •Spike recovery outside of advisory limits.
www.energylalJ.com
AnalyticalExcellence S'
Helena,MT 871-412-0711 •Billings,MT 800-735-4489 •Casper,WY 888-235-0515
Gillette,W'f 866-686-7175·Rapid Ci )888-672-1225.College Station,TX 888-690-2218
'-"
Client:Denison Mines USA Corp
Project:Semi Annual Surface Water
QA/QC Summary Report
Report Date:06/22/10
Work Order:C10050471
r Analyte Count Result Units RL %REC Low limit High Limit RPO RPOLimit Qual
Method:E907.0
Sample 10:LCS-RA-TH-ISO-1174
Tho 'um 230
Sample 10:C1005043S-G060MS
Thorium 230
Laboratory Control Sample
4.9 pCilL
Sample Matrix Spike
11 pCilL
Run:EGG-ORTEC_100520A
93 70 130
Run:EGG-ORTEC_100520A
75 70 130
Batch:RA-TH-ISO-1174
05/24/1009:02
05/24/1 0 09:02
Sample 10:C1005043S-G060MSO
Thorium 230
Sample 10:MB-RA-TH-ISO-1174
Thorium 230
Thorium 230 precision (±)
Thorium 230 MDC
Sample Matrix Spike Duplicate
13 pCi/L
3 Method Blank
0.05pCilL
0.07pCilL
0.1 pCi/L
Run:EGG-ORTEC_100520A
86 70 130 13
Run:EGG-ORTEC_100520A
05/24/1009:02
38.7
OS/24/1009:02
U
Method:E907.0
Sample 10:C100S0471-G010MS
Thorium 230
Sample 10:C10050471-G010MSO
Thorium 230
Sample 10:LCS-26135
Thorium 230
Sample 10:MB-26135
Thorium 230
Thorium 230 precision (:I:)
Thorium 230 MDC
Sample Matrix Spike
15 pCi/L
Sample Matrix Spike Duplicate
16 pCi/L
Laboratory Control Sample
5.51 pCi/Filter
3 Method Blank
0.02 pCi/Filter
0.1 pCi/Filter
0.09 pCi/Filter
Batch:26135
Run:EGG-ORTEC_100521A 05125/10 19:21
107 70 130
Run:EGG-ORTEC_100521A 05/25/10 19:21
101 70 130 6 36
Run:EGG-ORTEC_100521A 05125/10 19:21
112 70 130
Run:EGG-ORTEC_100521A 05/25/10 19:21
U
Qualifiers:
RL -Analyte reporting limit.
MDC •Minimum detectable concentration
NO -Not detected at the reporting limit.
U •Not detected at minimum detectable concentration
www.energylab.com
AnalyticalExcellence Si
Helena,MT 877-472-0711 •Billings,MT 800-735-4489 •Casper,WY 888-235-0515
Gillette,WY 866-686·7175.Rapid Ci )888-672-1225.College Station,TX 888-690-2218
QA/QC Summary Report
Client:Denison Mines USA Corp Report Date:06122/10
Project:Semi Annual Surface Water Work Order:C10050471
•t Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual
t
Method:SW6020 Batch:26135
Sample 10:MB·26135 Method Blank Run:ICPMS2-C_100524A 05/24/10 19:50
Uranium 8E-OS mglfilter 6E-05
Sample 10:LCS2·26135 Laboratory Control Sample Run:ICPMS2-C_100524A 05/24/10 19:54
Uranium 0.0964 mglfilter 0.00030 96 85 115
Sample 10:C10050503-Q04AMS Sample Matrix Spike Run:ICPMS2-C_100524A 05/24/10 20:23
Uranium 0.0477 mglfilter 0.00030 95 75 125
Sample 10:C10050503-Q04AMSO Sample Matrix Spike Duplicate Run:ICPMS2-C_100524A 05/24/1 0 20:44
Uranium 0.0471 mglfilter 0.00030 94 75 125 1.3 20
Qualifiers:
RL -Analyte reporting limit.
MDC -Minimum detectable concentration
NO -Not detected at the reporting limit.
www.energylab.com
AnalyticalExcel/ence!
Helena,MT 871-472-0711 •Billings,MT 800-735-4489.Casper,WY 888-235-0515
Gillette,WY 866-686-7175 •Rapid C 888-672-1225 •College Station,TX 888-690-2218
Energy Laboratories Inc
Workorder Receipt Checklist
Denison Mines USA Corp
Login completed by:CorinneWagner
Reviewed by:BL2000\kschroeder
Reviewed Date:5/17/2010
1I111111111111111~1~IIIIIIIII ~1111~11 II
C10050471
Date Received:5/15/2010
Received by:dd
Carrier name:FedEx
Shipping container/cooler ingood condition?
Custodyseals intacton shipping container/cooler?
Custodyseals intact on sample bottles?
Chain ofcustody present?
Chain ofcustodysigned whenrelinquished and received?
Chain ofcustody agrees with samplelabeCs?
Samples in propercontainerlbottle?
Samplecontainers intact?
Sufficient sample volume for indicatedtest?
All samples received within holding time?
ContainerfTempBlanktemperature:
Water-VOAvials have zero headspace?
Water-pH acceptable upon receipt?
Contact and Corrective Action Comments:
None
Yes iii
Yes iii
Yes 0
Yes iii
Yes 0
Yes iii
Yes iii
Yes iii
Yes iii
Yes 0
2'C
Yes 0
Yes iii
NoD
N°D
NoD
N°D
No 0
No 0
NoD
NoD
N°D
NoD
No 0
NoD
NotPresent 0
NotPresent 0
Not Present iii
NoVOAvials submitted iii
Not Applicable 0
pageLOf~Chain of Custody and Analytical Request RecordIIBi1B
LAHORATORIES ..-.._....... .-_.---...__......_...._--_..--------comp~e:.Project Name,PWS,Permit,Etc.Sample Origin EPA/State Compliance:
M.~s.~'(IIM1"~~~fA L1.."·
'eAll~ON State:fA'"Yes 0 No 0
Report Mail ~~~s:6~[>07 QclName:Phone/Fax:Email:Sampler:(Please Print)·
12-PJ~r •
jLjuvldlrlLl 1"1"~qSI/QLw '1~h1K 2221
Invoice Address:I Invoick Contact &Phone:Purchase Order:Quo'te/Boltle Order:
,-
_..--=--5 A--<._
Special Report/Formats::s:;&lm&l1W®O®rn3§®(!JJ~'U'~@)..Contact ELI prior to ~dAClQ)RUSH sample submittal
~o w-C.~i="for charges and CoMer lOIs):
~CD;g51 Q)~~Cl ~R scheduling -See ~tlJ/~~._>0 >.(5 UJ Instruction PageoOW0EOO/EOT(Electronic Data)aenen('O:s:;~c::Us (I)J:0:s:;=~Ol """~'0 ReceiptTemp "'o POlWlWWTP Format:-0 c::Comments:u<t:~I.Q~::l U ;L °c '"~t «0oState:0 LEVEL IV '0 ...COI c:'j ~...••(I,)c:'-.....I-('01:~-a;~0 c::o Other:0 NELAC ~~.I-...On Ice:(Y)NE~I('O ,«::l
::l (1).!::Q):S:;....;.;""VI l-Sza.<t:I~Cl .~~I~w 12 CustodySeal 5'~>1 W ('0 OnBotlle ~v .....Cf)'0 On Cooler Y.en .......:::.....c::~~~~~I"-~-s H Intact ~N.:~~(/)
SAMPLE IDENTIFICATION Collection Collection MATRIX .......;Signature Y N
(Name,Location,Interval,etc.)Date Time rJ V)Match
Y~Jt,JN1,l S·,q·/D If7-52 /-IAJ XIV X X 'i X ~
2~D\<.~t S/iqho I'1/~
3 ~-p[~~~\Q)
nnn
4 ~~~
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6 ~tJ(lR').4~,,-
7 ~~
8 ~0)
9
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10 I<:::!J'I
Custody iZ:hedrttt
):Datemme:tWo -lGtuV~Received by (print):Datemme:Signature:
v .~.A ,,,,\·J4·IIJRecordRelil1quisheoby(print):DatelTime:/ignat~e:Received by (print):Datemme:Signature:
MUST be A
Signed
,7m:L;ora;~A A ~a.:::me5~.s-)'h //>.Onlure
:Sample Disposal:Return to Client:Lab Disposal:
~I
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.
White Mesa Mill -Standard Operating Procedures
Book #11:Environmental Protection Manual,Section 2.1
Attachment A
o
Date:2/07 Revision:DUSA-l
PageS qf5
FIELD WATER ANALYSIS SURFACE WATER
WHITE MESA MILL
LOCATION (Circle one),ottonwood Cr .
DATE:O·/i.J·;<d/O
pH BUFFER 7.0 _----=-7_·_()__
estwater Can on Other (describe)_
BY:B~'"III..v g ~
(Sampler's mitials)
pH BUFFER 4.0 __~_._L)__
SPECIFIC CONDUCTIVITY __'1-l-..(.'Z..I.t't...-~"M~H~O~s
STEAM DEPTH:
pH ofWATER _
01 lfl OND "mhos ~22~Y
pH Units 1"./2
Temp °c 1.11J
O'1 1ftOND ~mhos ?22..S-
pH units ~.2.1
Temp °c <:t.10
TEMP _
o~1fJOND J1mhos ~21..3
pH units 8'.l z...
Temp °c 1.7-0
o158oND ~mhos 6,({.~
pH units ~.lJ
Temp °c 1...!I
&ItwNfNd
5-1l('Z()/~
St~I1M~
.iRlt(;J~.
o·o
White Mesa Mill -Standard Operating Procedures
Book #J J:Environmental Protection Manual,Section 2.1
Date:2/07 Revision:DUSA-l
Page 5 of5
Attachment A
FIELD WATER ANALYSIS SURFACE WATER
WHITE MESA MILL
pH BUFFER 4.0 _----:..Lf_.=.()__
BY:k&1I!t1 i 4n ,Lk/
(Sampler's initials)
DATE:3 ·/6 '/0
LOCATION (Circle one .Cottonwood Creek,Westwater Can on Other (describe)_
pH BUFFER 7.0 __7_,_0 _
SPECIFIC CONDUCTIVITY __":.-.1---'f --=UM~Ho.::.;O=s
STEAM DEPTH:---'o.o'[{_-+t.u..'d_1
_'_
pH ofWATER ¥'~1(,
-r!-\..b;~:.\t '-:';:l.b(.'\
COND umhos 5 Q ,,\
(7
TEMP :5./1 c
,.
COND ).lmhos 5 il.Q
pH Units _--=<is...:....:...\~..L..'_pH units ----"'f(:..,...,;..;17_
Temp °c '3.~,J._()
COND ).l=mh=0=s'--_....:5=--L=3:;..:.."t--=..COND ).lmhos !>,3.$
pH units __---"'~~,.;....;ib,,-_
Temp °c =~_I....:"~
pH units __~~.;...,;,.7 _
Temp °c __'3...:..~_lq,,--__
Comments:
~&tWl ~,i~kJ7ke/d4A~1
I 0/aaR]l;t Su.:r~~fAJdct'20I {;aIbN Mod ~./6 -;Z()I{)
o o
o
White Mesa Mill -Standard Operating Procedures
Book #11:Environmental Protection Manual,Section 2.1
Attachment A
o
Date:2/07 Revision:DUSA-I
Page 5 of5
pH BUFFER 7.0 __L'--·.......(J~_
FIELD WATER ANALYSIS SURFACE WATER
WHITE MESA MILL
LOCATION (Circle one):Cottonwood creek~can~er(describe)_
/sr &<S<1 "',.&k5"4 ~'7 ~4W .d....(LVIS
DATE::r it-/0 BY:1Z~N J,~"i IM,w /;/~4(Sam~s initials)/
pH BUFFER 4.0__~.L...•..........;,...tJ__
TEMP -,12.5
COND ~mhos If 1S
pH units T It
TempoC -..CJ J
COND~mboo 1{~r5­
pH units If.'?
TempoC -..()J
SPECIFIC CONDUCTIVITY _-----J1'--.:-~~(f'~__IJ1t=M=H~O=S
/_2 I'STEAM DEPTH:_
pH of WATER _---"-'a'--ZZ-.1/'--t~_
-N~;J.'7 =5>:L
COND limbos Ii '11
pH Units 8"./?
TempOC -...0]
COND ~os Ih '!?I
o."/rpHunits_---=o.....:.......-_~__
TempoC -z {};>
..
J'jf OllAtJltCc£ar<N,;;t;..2tJ/O 0
Nt»N~:3·/6·;t.{}/tJ

ATTACHMENT I

Soil samples were not required during this reporting period.