DRC-2017-002490 - 0901a068806e19d1

State of Utah
GARY R HERBERT
Governor
SPENCERJ COX
Lieutenant Governor
Department of
Environmental Quality
Alan Matheson
Executive Director
DIVISION OF WASTE MANAGEMENT
AND RADIATION CONTROL
Scott T Anderson
Director
J
yzt'zon-oDZ^to
MEMORANDUM
TO:
FROM:
DATE:
Phil Goble
Dean Henderson
April 4,2016
L/,/<//
SUBJECT: Review of the November 17, 2016 Annual Seeps and Springs Sampling Report for Energy
Fuels Resources (USA), Inc. White Mesa Uranium Mill, near Blanding, Utah
On November 21, 2016 the Division of Waste Management and Radiation Control (“DWMRC”) received
the 2016 Annual Seep and Springs Sampling Report (“Report”) [eDocs: DRC-2016-011525] for the
Energy Fuels Resources (USA), Inc. (“EFR”) White Mesa Uranium Mill (“Mill”), near Blanding, Utah.
For the review of this Report the following regulatory enforcement documents will be used:
• White Mesa Uranium Mill Ground Water Quality Assurance Plan (“QAP”).
Revision 7.2, dated June 6, 2012.
• Groundwater Discharge Permit No. UGW370004 (“Permit”). Permit version that was signed on
August 24, 2012.
• Sampling Plan for Seeps and Springs In the Vicinity of the White Mesa Uranium Mill. Revision 0.
(“Plan”).
• Utah Department of Environmental Quality Division of Radiation Control Guidance for
Groundwater Split Sample Collection at Uranium Mill Operations. August 7, 2007.
Summary of Compliance
EFR informed the DWMRC in a letter dated May 20, 2016, that EFR would be sampling the seeps and
springs on June 16, 2016 (eDocs: DRC-2015-002622). This letter arrived at the DWMRC on May 24,
2016 providing a 15 day notice prior to sampling as required in Section 3 of the Plan (see Attachment 2).
The Plan requires the Report to be submitted to the DWMRC on or before December 1 of each year. The
Report was received by the DWMRC on November 21, 2016, which met the Plan requirement.
195 North 1950 West • Salt Lake City, UT
Mailing Address PO Box 144880 • Salt Lake City, UT 84114-4880
Telephone [phone] • Fax [phone] •TDD [phone]
7tmmnJeq.utiili.gov
Printed on 100% recycled paper
Page 2
The Report met all of the following reporting requirements in Section 6 of the Plan:
1) Document the sampling event by means of providing the field sheets recorded at the time of
sampling.
2) Copies of all field measurements and laboratory results.
3) Provide a water table contour map that includes a water table elevation of all groundwater
monitoring wells at the facility (3rd quarter 2016 water level measurements) and the elevations of
the phreatic surface observed at each of the seep and springs sampled.
4) Provide an evaluation and interpretation of the groundwater quality data collected.
The DWMRC staff also on June 16, 2016, observed the EFR staff sample Cottonwood Spring, Entrance
Spring, (see photographs in Figures 1-3). At that time Westwater Spring, Coral Canyon and Corral Seep
were found to be dry and therefore no sample could be collected. However, the EFR staff found there to be
enough water to sample the Westwater spring on October 24, 2016 and EFR collected a sample.
Based on DWMRC Staff (Dean Henderson) observing the EFR staff perform the sampling and monitoring
and after the DWMRC review of the Report, it appears that EFR appropriately followed the QAP and Plan.
Duplicate Sample Comparison
Historic DWMRC seeps and springs sample analytical results are summarized in Table 6 in Attachment 1
below. Comparisons of duplicate samples analytical results are summarized in Tables 7 and 8 in
Attachment 1 below. To determine if sample results between two samples from the same laboratory are
comparable, a relative percent difference (“RPD”) of 20% is acceptable (DRC 2007). To determine if
sample results between two samples from two different laboratories are comparable a RPD of 30% is
acceptable (DRC 2007). For radiologies, to determine if sample results between two samples or two
laboratories are comparable, a replicate error ratio (“RER”) of < 2 is acceptable (DRC 2007).
EFR Duplicate Sample Comparison
EFR collected a duplicate of Cottonwood Spring and identified it as “Back Spring”. The RER comparisons
for gross alpha < 2. The RPD comparisons between the analytical results were all below 20%. (see Table
8).
DWMRC Duplicate Sample Comparison
The DWMRC collected a split sample of Entrance Spring with EFR. The DWMRC also collected a
duplicate of this spring and identified it as “Spring 1”. The RER comparisons for gross alpha was < 2. The
RPD comparisons between the analytical results were found below 20% with the exception of the
analytical results for nickel, tin, acetone, and dichloromethane (or methylene chloride) [see table 7], The
analytical result for nickel for Entrance Spring and Spring 1 was 0.75 pg/1 and 0.56 pg/1 respectively having
a RPD of 29%. The analytical result for tin for Entrance Spring and Spring 1 was 0.22 pg/1 and 0.31 pg/1
respectively having a RPD of 34%. The analytical result for acetone for Entrance Spring and Spring 1 was
6.4 pg/1 and 8.3 pg/1 respectively having a RPD of 25.9%. Recommenced actions for detectable VOCs are
addressed below. The remainder of the analytical results are comparable.
DWMRC Sample Comparison To EFR
The RPD comparison between the analytical results found on Table 7 for the DWMRC Entrance Spring
and Spring 1 sample and EFR Entrance Spring sample were below 30% with the exception of the analytical
results for ammonia, arsenic, selenium, chloride, sulfate, and potassium (see table 7). The analytical result
for ammonia for DWMRC Entrance Spring and Spring 1 was 0.042 pg/1 and for EFR Entrance Spring was
0.0962 pg/1. The resulting RPDs was of 78.4%. The analytical result for arsenic for DWMRC Entrance
Page 3
Spring and Spring 1 was 2.2 pg/1 and for EFR Entrance Spring was 5.02 pg/1. The resulting RPDs was of
78.1%. The analytical result for selenium for DWMRC Entrance Spring and Spring 1 is 3.1 pg/l and 2.8
pg/1 respectively and for EFR Entrance Spring was 15.9 pg/1. The resulting RPDs was of 134.7 % and
140.1 % respectively. The analytical result for chloride for DWMRC Entrance Spring and Spring 1 was 75
mg/1 and for EFR Entrance Spring was 38 mg/1. The resulting RPDs was 65.5%. The analytical result for
sulfate for DWMRC Entrance Spring and Spring 1 was 240 mg/1 and 250 mg/1 respectively and for EFR
Entrance Spring was 573 mg/1. The resulting RPDs was of 81.9% and 78.5% respectively. The analytical
result for sodium for DWMRC Entrance Spring and Spring 1 was 95 mg/1 and 94 mg/1 respectively and for
EFR Entrance Spring was 185 mg/1. The resulting RPDs was of 64.3% and 65.2% respectively. The
remainder of the analytical results are comparable.
The RER comparison between the gross alpha analytical results found on Table 7 for the DWMRC
Entrance Spring and Spring 1 sample and EFR Entrance Spring sample were greater than 2. The analytical
result for gross alpha for DWMRC Entrance Spring and Spring 1 was 5.84±1.73 pCi/1 and 5.66±1.86 pCi.l
respectively and for EFR Entrance Spring was 1.46±0.294. The resulting RERs was of 2.5 and 2.2
respectively. Since all three concentration results are well below the GWQS for gross alpha (15 pCi/1) as
found in Table 2 of the Permit no actions are recommenced.
Mill Operations Impact on the Seeps and Springs.
The analytical results for the 2016 seeps and springs monitoring event are summarized in tables 1 through
5 in Attachment 1 below. Photographs in figures 1-3. As stated above Coral Canyon and Corral seeps
were found to ether dry or not enough moisture to collect a water sample.
Cottonwood Spring
The only metal detected was uranium and it did not exceed its GWQS. Also, the uranium concentration
was typical of historic concentrations. Gross alpha was below GWQS. No VOCs were detected in EFR
sample. A comparison of the 2009, 2010, 2011, 2012, 2013, 2014, 2015, and 2016 data shows that the
concentrations of most detected analytes remained approximately the same. Overall, the data reported for
Cottonwood Spring water appear to show no indication of Mill impact. Photograph in figure 2.
Entrance Spring
Some metals were detected and were below their GWQS [see Table 1]. No VOCs were detected in the
EFR sample. However, in both the DWMRC Entrance Spring and its duplicate Spring 1 sample had “J
flagged” (approximated value) detectible concentrations of dichloromethane (methylene chloride) and
acetone. Dichloromethane was detected at 0.65pg/L and 085pg/L respectively. And acetone was detected
at 6.4 pg/L and 8.3 pg/L respectively. Dichloromethane and acetone concentrations were below their
GWQS of 5pg/L and 1000 pg/L respectively. Concentrations of dichloromethane and acetone were not
detected in the EFR samples because the American West Laboratories detection limits for dichloromethane
is 1.0 pg/L and for acetone <20pg/l. The sampling location for Entrance Spring is approximately 400 feet
east of Highway 191 and is at a topographically low elevation with occasionally used dirt roads in between.
The sourse(s) of VOC may have come from leakage or spillage of petroleum products from motorized
vehicles traveling along these roadways washed down by storm water/surface water into the Entrance
spring drainage area. Therefore, at this time is difficult to determine if the Mill has impacted the Entrance
Spring. Should the 2015 sampling data show that VOC(s) continue to be detected the Division of Waste
Management and Radiation Control (“DWMRC”) may require an increase in sampling frequency or other
actions required by the DWMRC Director to determine possible sources that may have an impact on
Entrance Spring.
Page 4
Gross alpha was below GWQS. A comparison of the 2009, 2010, 2011, 2012, 2013, 2014, and 2015 data
to the 2016 data shows that the concentrations of most detected analytes remained approximately the same.
All other data reported for Entrance Spring water appear to show no indication of Mill impact. Photograph
in figure 1.
Ruin Spring
The only metals detected were Molybdenum, selenium, silver and uranium. None exceeded GWQS. No
VOC detected and gross alpha was below GWQS. Major ions were detected. A comparison of the 2009,
2010, 2011, 2012, 2013, 2014 and 2015 data to the 2016 data shows that the concentrations of most
detected analytes remained approximately the same. Overall, the data reported for Ruin Spring water
appear to indicate no indication of Mill impact. Photograph in figure 3.
Westwater Spring
The only metals detected were iron, manganese and uranium. None exceeded GWQS. No VOCs were
detected and gross alpha was below GWQS. Major ions were detected. It should be noted that the water
sample for Westwater Spring may be water from recent storm event (within the last 48 hours). Overall, the
data reported for Ruin Spring water appear to indicate no indication of Mill impact.
Conclusion on Report
Based on the review of the Report requirements appear to satisfy the Permit, QAP, and Plan requirements
and at this time no further action is required of EFR.
Page 5
References
Energy Fuels, White Mesa Uranium Mill Ground Water Quality Assurance Plan, Revision 7.2, June 6,
2012.
Energy Fuels, Letter Subject: White Mesa Uranium Mill Annual Seeps and Springs Sampling - Notice
Pursuant to Utah Groundwater Discharge Permit UGW370004, June 2, 2015. (eDocs: DRC-2013-002721)
Energy Fuels, White Mesa Uranium Mill 2016 Annual Seeps and Springs Sampling Report, November 17,
2011. (eDocs: DRC-2016-011525)
Utah Department of Environmental Quality, Groundwater Discharge Permit No. UGW370004 Permit
version that was signed on August 24, 2012.
Utah Department of Environmental Quality Division of Radiation Control Guidance for Groundwater Split
Sample Collection at Uranium Mill Operations, August 7, 2007.
Page 6
Figure 1. Sampling Entrance Spring on June 16, 2016.
Figure 2. Sampling Cottonwood Spring on June 16, 2016
Page 7
Figure 3. Sampling Ruin Spring on June 16, 2016.
Attachment 1
Tables 1 through 8
Table 1
Summary of Seeps and Springs Analytical Data 2016
Contaminant
Parameters Listed in Table 2
GWQS
(1)Cottonwood
Canyon Spring
,2,Entrance Spring Ruin Spring Westwater Seep
6/16/2016 6/16/2016 6/16/2016 10/24/2016
Nutrients (mg/L)
Ammonia (as N)25 <0.05 0.0962 <0.05 0.123
Nitrate + Nitrite (as N)10 <0.1 0.403 1.64 <01.............................
Heavy Metals (pg/L)
Arsenic 50 <5 5.02 <5 <5
Beryllium 4 <0.5 <0.5 <0.5 <0 5
Cadmium 5 <0.5 <0.5 <0.5 <0.5
Chromium 100 <25 <25 <25 <25
Cobalt 730 <10 <10...............<10 <10
Copper 1,300 <10 <10 <10 <10
Iron 11,000 <30 94 <30 40
Lead 15 <1 <1 <1 <1
Manganese 800 <10 210 <10 55.5
Mercury 2 <0.5 <0 5 <0.5 <0.5
Molybdenum 40 <10 <10 ..........................17.8 <10
Nickel 100 <20 <20 <20 <20
Selenium 50 <5 159 10 <5
Silver 100 <10 <10 <10 <10
Thallium 2 <0.5 <0.5 <0.5 <0.5
Tin 17,000 <100 <100 <100 <100
Uranium 30 8.84 22.0 8.38 19
Vanadium 60 <15 <15 <15 <15
Zinc 5,000 <10 <10 <10 <10
Radiologies (pCi/L)
Gross Alpha I 15|0.149+/-0.167 I1.46+/-0.294 |0 273+/-0.165 I0.00612+/-0.193
<O o jg/y
Acetone 700 <20 <20 <20 <20
Benzene 5 <1.0 <1.0 <1.0 <1.0
2-Butanone (MEK)4,000 <20 <20 <20 <20
Carbon Tetrachloride 5 <1 0 <1.0 <1.0 <1.0
Chloroform 70 <1.0 <1.0.........................<1.0 <1.0
Chloromethane 30 <1.0 <1.0 <i.O <1.0
Diehl o ro metha ne 5 <1 0 <1.0 <1.6 <1.0
Naphthalene 100 <1.6 <1.0 <1.0 ..........77”....’<1.6
'Tetrahydrofuran (THE)46 <1.0 <1.0 <1.0 <1.0
Toluene 1,000 <1.0 <1.0 <1.0 <1 0
Xylenes (total)10.000 <1 6 <1.6 <1.0 <1 0
Others
Field pH (S.U.).............................6.5-8.5 7.3 6 57 7.27 7.24
Fluoride (mq/L)4 0.466 0.668 0.541 0 618
Chloride (mg/L)NG 138 75 24 4 38
Sulfate (mg/L)NG 443 245 490 573
TDS (mq/L)NG.................1,070 828 916 1,060
General Inorganics Listed in Part I.E.1.(c)(2)(ii)
Carbonate (mg/L)NG <1.0 <1.0 <1 <1
Bicarbonate (mg/L)........................NG 256 340 193 399
Sodium (mg/L)NG....................221 90 8 105 185
Potassium (mg/L)NG 6 11 1 62 3.18 2 32
Magnesium (mg/L)NG 29.5 38.6 31.1 .............................47.3
Calcium (mg/L)NG 102 131 138 176
Total anions (meq/L)NG.......................................18.2 14.0 148 21.0
Total cations (meq/L)NG 17.3 137 14 1 20.8
1 EFR duplicate sample was also collected and is identified a Back Spring See anaylitical results in Table 7.
2 DWMRC duplicate sample was also collected and is identified a Spring 1
NG •• No GWCL
Shadedji'excef&ed GWCL; .
Table 2
Historic Cottonwood Spring Concentrations
Contaminant
Parameters Listed in
Table 2
GWQS Samplmq Event
' 7/25/1977 '11/10/1977 7/9/2009 7/7/10 5/31/2011 7/13/2011 6/20/2012 7/16/2013 6/17/2014 6/16/2015 m6/16/2016
Nutrients (mq/L)
Ammonia (as N)25 0 13 <0 1 <0 05 <0 05 <0 05 I <0 05 <0 05 <0 05 <0 05 0 0512 <0 05
Nitrate + Nitnte (as N)10 006 0 26 _ 01 <01 Oil<0 1 <01 <0 1 <01 <0 1 <0 1
Heavt Metals (uq/L)
Arsenic 50 T<10 NA <0 05 <5 <5 <5 <5 <5 <5 <5 <5
Beryllium 4 NA NA 01 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5
Cadmium 5 t4 t2 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5
Chromium 100 t20 T<10 <25 <25 <25 <25 <25 <25 <25 <25 <25
Cobalt 730 NA NA <10 <10 <10 <10 <10 <10 <10 <10 <10
Copper 1,300 t5 t<5 <10 <10 <10 <10 <10 <10 <10 <10 <10
iron 11,000 3,200 110 <30 <30 53 <30 <30 <30 <30 <30 <30
Lead 15 t30 t<50 <1 <1 <1 <1 <1 <1 <1 <1 <1
Manganese 800 1100 60 <10 <10 <10 <10 <10 <10 <10 <10 <10
Mercury 2 t2 ti <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5
Molybdenum 40 <10 NA <10 <10 <10 <10 <10 <10 <10 <10 <10
Nickel 100 NA NA <20 <20 <20 <20 <20 <20 <20 <20 <20
Selenium 50 140 NA <5 <5 <5 <5 <5 <5 <5 <5 <5
Silver 100 4 NA <10 <10 <10 <10 <10 <10 <10 <10 <10
Thallium 2 NA NA <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5
Tin 17.000 NA NA <100 <100 <100 <100 <100 <100 <100 <100 <100
Uranium 30 4 NA 8 42 8 24 7 87 8 68 817 8 95 9 62 912 884
Vanadium 60 6 <10 <15 <15 <15 <15 <15 <15 <15 <15 <15
Zinc 5 000 60 150 <10 <10 <10 <10 <10 <10 <10 <10 <10
Radlolooics (pCi/Ll
Gross Aloha 1I 15l 10 2±3 1 |NA 1I0 3+/-0 5 I0 5+/-0 4 0 1+/-0 2 l-O 1+/-0 4 1-0 2 +/-0 2 l<1 0 l<1 0 lo 0198-t-z-o 112 lo 149+/-0 167
voc (pg/L)
Acetone 700 NA NA <20 <20 <20 <20 <20 <20 <20 <20 <20
Benzene 5 NA NA <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0
2-Butanone (MEK) 4,000 NA NA <20 <20 <20 <20 <20 <20 <20 <20 <20
Carbon Tetrachlonde 5 NA NA <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0
Chloroform 70 NA NA <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0
Chloromethane 30 NA NA <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0
Dichloromethane 5 NA NA <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0
Naphthalene 100 NA NA <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0
Tetrahydrofuran (THF)46 NA NA <1 0 2<1 0 <1 0 <1 0 <1 0 <1 0 <1 0 -<1 0 <1 0
Toluene 1,000 NA NA <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0
Xvlenes (total) 10.000 NA NA <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0
Others
Field pH (S U )65-85 70 81 73 7 47 7 55 804 7 53 7 25 718 73 73
Fluonde (mg/L)4 1 05 04 0 38 034 0 38 0 38 0417 <1 0318 0 466
Chlonde (mg/L)NG 1 71 124 112 113 134 149 118 128 133 138
Sulfate (mg/L)NG 333 243 383 389 394 389 356 403 417 442 443
TPS (mq/U_____________NG 1270 780 1.010 900 1030 978 1.040 1.020 968 1.020 1.070
Genera1 Inorganics Listed m Part I.E.1.(c>2Mii)
Carbonate (mg/L)NG 0 0 <1 <1 <1 0 6 <1 <1 0 <1 0 <1 <1 0
Bicarbonate (mg/L)NG NA NA 316 340 330 316 326 280 251 200 256
Sodium (mg/L)NG 400 115 205 214 229 227 247 217 227 126 221
Potassium (mg/L)NG 66 43 57 5 77 6 59 62 5 53 6 18 3 14 6 11
Magnesium (mg/L)NG 19 28 25 24 8 25 2 25 2 27 7 23 6 29 31 8 29 5
Calcium (mg/L)NG 58 133 90 3 92 2 95 4 94 2 101 87 9 99 7 162 102
Total anions (meq/L)NG NA NA 167 22 3 168 173 17 173 173 158 182
Total cations (meq/L)NG NA NA 156 21 8 17 168 182 159 159 163 173
1 Dames and Moore January 30,1978, Environmental Report White Mesa Uraium Project San Juan County. Utah, Energy Fuels, Inc
2 THF sampled on November 3. 2010
3 A duplicate sample was also collected and is identified a Back Spring See anaylibcal results in Table 7
NG = No GWCL
T = indicates metals analyzed as totals
Table 3
Historic Entrance Spring Concentrations
Contaminant
Parameters Listed in
Table 2
GWQS Monitoring Events
7/9/2009 7/6/2010 5/31/2011 7/13/2011 6/20/2012 7/16/2013 6/17/2014 (2,6/16/2015 6/16/2016
Nutrients (mq/L)
Ammonia (as N)25 0.28 <0.05 <0.05 0.32 <0.05 <0.05 <0.05 0.202 0.0962
Nitrate + Nitrite (as N)10 1.4 1 1.4 6.5 2.8 2.06 3.65 <0.1 0.403
Heavy Metals (gq/L)
Arsenic 50 <5 <5 <5 <5 <5 <5 <5 5.02 5.02
Beryllium 4 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
Cadmium 5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
Chromium 100 <25 <25 <25 <25 <25 <25 <25 <25 <25
Cobalt 730 <10 <10 <10 <10 <10 <10 <10 <10 <10
Copper 1,300 <10 <10 <10 <10 <10 <10 <10 <10 <10
Iron 11,000 <30 <30 37 55 34 162 37 295 94
Lead 15 <1 <1 <1 <1 <1 <1 <1 <1 <1
Manganese 800 54 11 47 84 <10 259 16.1 367 210
Mercury 2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
Molybdenum 40 <10 <10 <10 <10 <10 <10 <10 <10 <10
Nickel 100 <20 <20 <20 <20 <20 <20 <20 <20 <20
Selenium 50 12.1 9.2 13.1 5.5 13.2 11.2 15.9 15.9 15.9
Silver 100 <10 <10 <10 <10 <10 <10 <10 <10 <10
Thallium 2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
Tin 17,000 <100 <100 <100 <100 <100 <100 <100 <100 <100
Uranium 30 15.2 17.8 18.8 15.3 21.1 38.8 23.2 36.0 22.0
Vanadium 60 <15 <15 <15 <15 <15 <15 <15 <15 <15
Zinc 5.000 <10 <10 <10 <10 <10 <10 <10 <10 <10
Radioloqics (pCi/L)
Gross Alpha 15I0.9+/-0.6 I.5+/-0.4 I1.5+/-0.3 1.6+/-0.7 10.5+/-0.4 iI2.3+/-0.3 l<1.0 I3.05+/-0.358 11.46+/-0.294
VOC(ug/L)
Acetone 700 <20 <20 <20 <20 <20 <20 <20 <20 <20
Benzene 5 <1.0 <1.0 <1.0 <1.0 <1.0 <1.6 <1.0 <10 <1.0
2-Butanone (MEK)4,000 <20 <20 <20 <20 <20 <20 <20 <20 <20
Carbon Tetrachloride 5 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0
Chloroform 70 <1.6 <10 <1.0 <1.0 <1.0 <1.6 <1.0 <1.0 <1.0
Chloromethane 30 <1.0 <1.0 <1.0 <1.0 <1.0 <ii.6 <1.0 <10 <1.6
Dichloromethane 5 <1.0 <1.0 <1.0 <1.6 <1.0 <1.6 <1.0 <1.0 <1.0
Naphthalene 100 <1.0 <1.0 <1.0..............<1.0 <1.0 <1.6......<1.0 <1.0 <1.0
Tetrahydrofuran (THF)46 <1.0 ’<1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0
Toluene 1,000 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 1.32 <1.0 <1.0
Xylenes (total)10.000 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1 0 <1.0
Others
Field pH (S.U.)6.5-8.5 7.64 7.56 7.96 8.17 7.5 6.41 6.16 6.57 7.24
Fluoride (mg/L)................4 0.7 0.73 0.58 0.58 0.64 071 <1 0.606 0.618
Chloride (mg/L)NG 60 63 49 64 78 139 76 8 75.6 38
Sulfate (mg/L)NG 178 179 166 171 171 394 219 210 573
TDS (mq/L)NG 605 661 571 582 660 1,010 688 680 1.060
General Inorganics Listed in Part I.E.1.(c)(2)(ii)
Carbonate (mg/L)NG <1 <1 <1 7 <1.0 <1.0 <1.0 <1.0 <1
Bicarbonate (mg/L)NG 292 332 270 299 298 208 247 324 399
Sodium (mg/L)NG 61.4 62.7 62.5 68.6 77.4 118 78.9 93.1 185
Potassium (mg/L)NG 2.4 2.74 2.6 2.9 2 3.46 1.56 1.62 2.32
Magnesium (mg/L)NG 26.6 28.9 26.4 28.4 32.7 32.1 34.9 33.3 473Calcium (mg/L)NG 90.8 96.5 88.8 96.6 105 149 103 131 176Total anions (meq/L)NG 10.3 10.3 9.4 10.5 10.9 16.4 18 13.0 21 0Total cations fmeq/L)NG 9.47 9.47 9.39 10.2 11.3 15.3 15.2 13.4 20.8II
1. THF sampled on November 3, 2010.
2. A duplicate sample was also collected and is identified a Back Spring. See anaylitical results in Table 7.
NG = No GWCL
Shaded = exceeded GWCL
Table 4
Historic Ruin Spring Concentrations
Contaminant
Parameters Listed in
Table 2 GWQS
Monitoring Events
'7/25/1977 3/28/2003 6/5/2003 8/29/2003 11/11/2003 3/15/2004 4/20/2004 8/13/2004 9/27/2004 7/9/2009 7/7/2010 5/31/2011 7/13/2011 6/20/2012 7/16/2013 6/17/2014 6/16/2015 6/16/2016
Nutrients (mq/L)
Ammonia (as N)25 <0 1 <0 05 1 5 <0 05 <0 05 <0 05 06 <0 05 0 06 0 09 <0 05 <0 05 <0 05 <0 05 <0 05 <0 05 <0 05 <0 05
Nitrate + Nitrite (as N)10 2 77 1 6 <0 05 1 4 1 4 1 7 1 8 1 34 1 7 1.4 1 7 1.7 1 6 1 6 1 56 1 54 1 31 1 64
Heavy Metals (US/L)
Arsenic 50 NA 1 <1 <1 1 <1 <1 <1 <1 <5 <5 <5 <5 <5 <5 <5 <5 <5
Beryllium 4 NA <10 <10 <10 <10 <10 <10 <10 <10 <0.5 <0.5 <0 5 <0 5 <0 5 <0.5 <0.5 <0 5 <0 5
Cadmium 5 t4 <5 <5 <5 <5 <5 <5 <5 <5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5
Chromium 100 T100 <50 <50 <50 <50 <50 <50 <50 <50 <25 <25 <25 <25 <25 <25 <25 <25 <25
Cobalt 730 NA NA NA NA NA NA NA NA NA <10 <10 <10 <10 <10 <10 <10 <10 <10
Copper 1,300 t<5 <10 <10 82 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10
Iron 11,000 20 <50 <50 <50 <50 <50 <50 <50 <50 <30 <30 <30 <30 <30 <30 <30 <30 <30
Lead 15 <50 <50 <50 <50 <50 <50 <50 <50 <50 <1 <1 <1 <1 <1 <1 <1 <1 <1
Manganese 800 <5 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10
Mercury 2 t<5 <1 <1 <1 <1 <1 <1 <1 <1 <0.5 <0.5 <0 5 <0 5 <0 5 <0.5 <0 5 <0 5 <0 5
Molybdenum 40 NA <100 <100 <100 <100 <100 <100 <100 <100 17 17 16 17 16 <0.5 16 0 18 3 17 8
Nickel 100 NA <50 <50 <50 <50 <50 <50 <50 <50 <20 <20 <20 <20 <20 <20 <20 <20 <20
Selenium 50 NA 13 12 12 12 12 12 12 12 12.2 10 11 8 10 2 10 8 16 1 12 10 10
Silver 100 NA <1 <1 <1 <1 <1 <1 <1 <1 <10 <10 <10 <10 <10 0.01 0 01 <10 <10
Thallium 2 NA <i <1 <1 <1 <1 <1 <1 <1 <0.5 <0 5 <0 5 <0 5 <0 5 <0.5 <0.5 <0 5 <0 5
Tin 17,000 NA NA NA NA NA NA NA NA NA <100 <100 <100 <100 <100 <100 <100 <100 <100
Uranium 30 NA 9 11 10 10 11 11 9 10 9.11 8 47 9.35 8 63 8 68 9 1 9 61 9 03 8 38
Vanadium 60 <10 <100 <100 <100 <100 <100 <100 <100 <100 <15 <15 <15 <15 <15 <15 <15 <15 <15
Zinc 5,000 15 14 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 <10 <10 <10 <10 <10 <10
Radiologies (pCi/L)
Gross Alpha I 15|NA |NA |NA NA |<1 0 I<10 I|<1 0 I 1 4 <1 0 I 02+/-0 5 I 02+/-0 3 I-0.03+/-0 11-0 05+-0 5 |-0 09 +/-0 1<1 0 |<1 0 |0 273+/-0 1i|0 273+/-0 165
VOCjug/y
Acetone 700 NA NA NA NA NA NA NA NA NA <20 <20 <20 <20 <20 <20 <20 <20 <20
Benzene 5 NA NA NA NA NA NA NA NA NA <1.0 <1.0 <1 0 <1 0 <1.0 <1 0 <1.0 <1 0 <1 0
2-Butanone (MEK)4,000 NA NA NA NA NA NA NA NA NA <20 <20 <20 <20 <20 <20 <20 <20 <20
Carbon Tetrachloride 5 NA NA NA NA NA NA NA NA NA <1.0 <1 0 <1 0 <1 0 <1.0 <1 0 <1.0 <1 0 <1 0
Chloroform 70 NA NA NA NA NA NA NA NA NA <1.0 <1 0 <1.0 <1 0 <1.0 <1 0 <1.0 <1.0 <1.0
Chloromethane 30 NA NA NA NA NA NA NA NA NA <1.0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0
Dichloromethane 5 NA NA NA NA NA NA NA NA NA <1 0 <1 0 <1 0 <1 0 <1.0 <1 0 <1 0 <1 0 <1 0
Naphthalene 100 NA NA NA NA NA NA NA NA NA <1.0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0
Tetrahydrofuran (THF)46 NA NA NA NA NA NA NA NA NA <1.0 2<1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0
Toluene 1,000 NA NA NA NA NA NA NA NA NA <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0
Xylenes (total)10,000 NA NA NA NA NA NA NA NA NA <1 0 <1 0 <1 0.<1.0 <1 0 <1 0 <1 0 <1.0 <1 0
Others
Field pH (S U )65-85 7 8 NA NA 7 91 7 98 NA NA NA NA 7 45 7 51 7 66 8 14 7 53 7 36 7 08 7 27 7 27
Fluoride (mg/L)4 0 6 NA NA 06 05 0 5 06 06 06 05 0 53 0.45 0 5 0 52 0 538 <1 0 445 0 541
Chloride (mg/L)NG 25 28 1 21 5 27 4 28 29 3 28 5 26 25 28 23 25 44 28 26 3 27 1 27 5 24 4
Sulfate (mg/L)NG 472 503 501 495 506 539 468 544 613 528 447 486 484 464 553 553 528 490
TDS (mq/L)NG 975 NA NA 1040 1000 1050 1110 1050 1070 1,010 1,010 942 905 1,000 1,010 984 1,000 916
General Inorganics Listed in Part I.E.1 (c)(2)(ii)
Carbonate (mg/L)NG 0 NA <1 <1 <1 <1 <1 <1 <1 <1 <1 1 <1 <1 <1 <1 <1
Bicarbonate (mg/L)NG NA NA NA 239 241 235 232 238 223 233 254 241 239 237 208 204 200 193
Sodium (mg/L)NG 200 110 105 103 113 104 110 113 116 104 93 4 110 111 115 118 119 126 105
Potassium (mg/L)NG 28 2 6 3 3 3 3 3 9 34 3 6 4 3.7 3 3 3.07 3 2 3 3 35 3.46 3 24 3 14 3 18
Magnesium (mg/L)NG 265 34 8 34 2 31 7 34 2 35 8 35.1 37.1 38 6 32 3 29 7 30 6 31 1 31 9 32 1 35 4 31 8 31.1
Calcium (mg/L)NG 375 153 156 149 158 158 162 176 186 151 136 145 148 147 149 150 162 138
Total anions (meq/L)NG NA NA NA NA NA NA NA NA NA 15 7 15 7 14 9 154 14 5 164 16.4 15 8 14 8
Total cations (meq/L)NG NA NA NA NA NA NA NA NA NA 14 8 148 14 6 14 9 15 1 15 3 15 3 16 3 14 1
1 Dames and Moore January 30, 1978, Environmental Report White Mesa Uraium Project San Juan County, Utah, Energy Fuels, Inc
2 THF sampled on November 3, 2010
NA = Not analyzed
NG = No GWCL
T = indicates the metal analyzed as total
Table 5
Historic Westwater Seep Concentrations
Contaminant
Parameters Listed in Table 2
GWQS Monitoring Event
11/18/2009 7/8/2010 5/31/2011 |2) 6/16/2015 10/24/2016
Nutrients (mg/L)
Ammonia (as N)25 <0.05 0.05 0.06 0.123 0.123
Nitrate + Nitrite (as N)10 0.8 <0.1 <0.1 <0.1 <0.1
Heavy Metals (ug/L)
Arsenic 50 <5 <5 12.3 <5 <5
Beryllium 4 <0.5 <0.5 0.91 <0.5 <0.5
Cadmium 5 <0.5 <0.5 0.9 <0.5 <0.5
Chromium 100 <25 <25 <25 <25 <25
Cobalt 730 <10 <10 <10 <10
<10
Copper 1,300 <10 <10 16 <10 <10
Iron 11,000 <30 56 4,540 <30 40
Lead 15 <1 <1
41.4 <1 <1
Manganese 800 37 87 268 171 55.5
Mercury 2 <0.5 <0.5 <0.5 <0.5 <0.5
Molybdenum 40 <10 29 <10 <10 <10
Nickel 100 <20 <20 29 <20 <20
Selenium 50 <5 <5 <5 <5 <5
Silver 100 <10 <10 <10
<10 <10
Thallium 2 <0.5 <0.5.............<0.5 <6.5 <0.5
Tin 17,000 <100 <100 <100 <100 <100
Uranium_____________________30 15.1 46.6 6.64 2.1 19
Vanadium 60 <15 <15 34 <15 <15
Zinc 5,000 <10 <10 26 <10 <10
Radiologies (pCi/L)
Gross Alpha 15|0.3+/-0.2 0.3+/-0.3 I0.5+/-0.2 I-0.0116+/-0.126 10.00612+/-0.193
voc jjg/y
Acetone 700 <20 <20 <20 <20 <20
Benzene 5 <1.0 <1.0 <1.0 <1.0 <1.0
2-Butanone (MEK)4,000 <20 <20 <20 <20 <20
Carbon Tetrachloride 5 <1.0 <1.0 <1.0 <1.0 <1.6
Chloroform 70 <1.0 <1.0 <1.0 <1.0 <1.0
Chloromethane 30 <1.0 <1.0 <1.0 <1.0 <1.0bichloromethane5<1.0 <1.0 <1.0 <1.0 <1.0
Naphthalene 100 <1.0 <1.0 <1,0...............<1,0........................<1.0.....................
Tetrahydrofuran (THF)46 <1.0 ^i.o <1.0 <1.0 <1.0
Toluene 1,000 <1.0 <1.0 <1.0 <1.0 <1.0
Xylenes (total)10,000 <1.0 <1.0 <1.0 <1.0 <1.0
Others
Field pH (S.U.)6.5-85 8.01 7.38 7.2 7.24 7.24
Fluoride (mg/L)..............................4 0.7 0.6 0.54 0.424 0.618
Chloride (mg/L)NG 41 40 21 32.6 38
Sulfate (mg/L)NG 646 607 354 392 573ItDS (mg/L)NG 1,370 1,270 853 896 1,060
General Inorganics Listed in Part I.E.1.(c)(2)(ii)
Carbonate (mg/L)NG <5 <1 <1 <1 <1
Bicarbonate (mg/L)NG 465 450 371 359 399
Sodium (mg/L)NG 195 160 112 139 185
Potassium (mg/L)NG 2.4 6.57 3.9 1.98 2.32
Magnesium (mg/L)........................NG 26.6 44.7 34.7 34 47.3
Calcium (mg/L)NG 191 179 247 150 176|
Total anions (meq/L)NG 22.3 ...22.3 ...14.1 16.3 21.0
Total cations (meg/L)NG 21.8 21.8 20.1 16.4 20.8
1. THF sampled on Novembers, 2010.
2. Water samples collected are most likely due to surface water from recent (within 48 hours) rain from storms.
NG = No GWQS
Shaded = exceeded GWCL
Table 6
Summary of DWMRC Historic Seeps and Springs Duplicate Analytical Data
Contaminant
Parameters Listed in Table 2
GWCL July 7, 2009 July 6, 2010 July 13, 2011 June 20, 2012 July 23, 2013 June 17, 2014 June 16, 2015 June 16, 2016
Ruin Spring Cottonwood
Spring
Enterance
Spring
Cottonwood
Spring
"Spring 1" Dup.
of Cottonwood
Spring
Ruin Spring "Spring 1" Dup.
of Ruin Spring
Entrance
Spring
"Spring 1" Dup.
of Entrance
Spring
Cottonwood
Spring
"Spring 1" Dup.
of Cottonwood
Spring
Entrance
Spring
"Spring 1" Dup.
of Entrance
Spring
Nutrients (mq/L)
Ammonia (as N) 25 0 05 <010 NS 0 06 0 05 <0 1 <0 1 NA 0 023 <0 022 <0 022 0 042 0 042
Nitrate + Nitrite (as N)10 1 0 08 NS <0 05 <0 05 1 5 1 5 NA 3 1 0 059 0 052 0 39 04
Heavv Metals (uq/L)
Arsenic 50 <2 5 <5 NS <5 <5 <5 <5 0 99 0 98 1 7 1 7 22 22
Beryllium 4 <0 2 <0 5 NS <0 5 <0 5 <0 5 <0 5 <0 15 <0 15 <0 15 <0 15 <0 15 <0 15
Cadmium 5 <0 2 <0 2 NS <0 5 <0 5 <0 5 <0 5 <0 04 0 058 <0 04 <0 04 <0 04 <0 04
Chromium 100 <3 <5 NS <2 <2 <2 <2 <0 88 <0 88 <0 88 <0 88 <0 88 <0 88
Cobalt 730 <1 <5 NS <1 <1 0 089 0 1 0 099 0 099 <0 05 <0 05 0 89 081
Copper 1,300 <3 <5 NS <5 <5 <5 <5 0 46 24 <20 <20 <20 <20
Iron 11,000 <50 <25 NS <30 <30 <30 <30 <22 45 <22 <22 98 110
Lead 15 <1 1 33 NS <1 <1 <1 <1 <01 <0 1 <0 1 <0 1 <0 1 <0 1
Manganese 800 <5 24 4 NS <2 2 66 <2 <0 2 72 74 49 52 210 220
Mercury 2 <0 2 <0 2 NS <0 2 <0 2 <0 2 <0 2 <0 027 <0 027 <0 027 <0 027 <0 027 <0 027
Molybdenum 40 172 <5 NS <2 3 31 16 15 39 38 1 7 1 4 28 26
Nickel 100 <3 <5 NS <2 <2 <2 <2 0 36 0 42 <0 28 <0 28 0 75 0 56
Selenium 50 12 1 5 74 NS <5 <5 99 95 14 14 1 2 1 3 3 1 28
Silver 100 <2 5 <5 NS <2 <2 <2 <2 <0 02 <0 02 <0 02 <0 02 0 03 0 026
Thallium 2 <1 <1 NS <1 <1 <1 <1 <0 066 <0 066 <0 066 <0 066 <0 066 <0 066
Tin 17,000 <5 <25 NS <2 <2 <2 <2 <0 16 <016 <0 16 0 19 0 22 0 31
Uranium 30 <25 <10 NS 127 14 9 79 77 23 23 83 85 22 22
Vanadium 60 22 2 11 3 NS 5 37 5 38 <5 <5 1 8 1 9 <1 1 <1 1 33 35
Zinc 5,000 <5 <10 NS <10 <10 29 27 <2 0 2 <2 0 <2 0 22 2
Radiologies (pCI/L)
Gross Alpha I 15|NS I212+/-7 01 *118 8+/-3 2 |0 198+/-5 75 |0 127+/-5 02 1|0 102+/-3 65 |0 107+/-394 |0 102+/-3 6^0 107+/-394 _____I14 59+/-1 98 II04 27+/-2 10 I15 84+/-1 73 I5 66+/-1 86
VOC fua/U
Acetone 700 <5 <5 NS <5 <5 <5 <5 <1 9 <1 9 4 3 1 64 83
Benzene 5 <1 <1 NS <1 <1 <1 <1 <2 0 <2 0 <2 0 <2 0 <2 0 <2 0
2-Butanone (MEK) 4,000 <1 <1 NS <5 <5 <5 <5 <0 16 <0 16 <0 16 <0 16 <0 16 <0 16
Carbon Tetrachloride 5 <1 <1 NS <1 <1 <1 <1 <0 19 <0 19 <0 19 <0 19 <0 19 <0 19
Chloroform 70 <1 <1 NS <1 <1 <1 <1 <0 16 <0 16 <0 16 <0 16 <0 16 <0 16
Chloromethane 30 <1 <1 NS <5 <5 <5 <5 <0 30 <0 30 <0 30 <0 30 <0 30 <0 30
Dichloromethane 5 <1 1 92 NS <1 <1 <1 <1 0 46 0 43 29 1 6 0 65 0 85
Naphthalene 100 <1 <1 NS <1 <1 <1 <1 <0 22 <0 22 <0 22 <0 22 <0 22 <0 22
1Tetrahydrofuran (THF)46 <1 <1 NS <1 <1 <1 <1 <2 <2 <2 <2 <2 <2
Toluene 1,000 <1 <1 NS <1 <1 <1 <1 <0 17 <017 <0 17 <0 17 <0 17 <0 17
Xvlenes (total)10.000 <1 <1 NS <1 <1 <1 <1 <0 19 <0 19 <0 19 <0 19 <0 19 <0 19
Others
Field pH (S U )65-85 7 56 7 34 NS 7 71 7 63 NA NA NA NA 7 83 7 86 7 83 7 78
Fluoride (mg/L)4 0 57 0 35 NS 0 34 0 34 05 0 48 0 56 0 56 0 37 0 37 0 62 0 62
Chloride (mg/L)NG 25 2 109 NS 112 113 27 27 79 79 130 130 75 75
Sulfate (mg/L)NG 476 386 NS 374 374 570 570 93 92 410 410 240 250
TDS (ma/U NG 1000 1080 NS 1030 1040 1000 1000 720 710 1100 1100 830 820
General Inorganics Listed in Part I.E.1.(c)(2)(ii)
Carbonate (mg/L)NG <2 <2 NS <0 5 <0 5 <0 5 <0 5 <1 1 <1 1 <1 1 <1 1 <1 1 <1 1
Bicarbonate (mg/L)NG 197 197 NS 252 254 180 170 230 230 260 250 830 360
Sodium (mg/L)NG 113 221 NS 198 194 120 120 90 90 230 250 95 94
Potassium (mg/L)NG 3 28 3 28 NS 59 6 1 34 36 1 8 1 9 57 6 1 22 2 1
Magnesium (mg/L)NG 32 9 32 9 NS 29 9 24 7 32 34 33 33 24 26 40 40
Calcium (ma/L)NG 152 90 8 NS 89 9 89 9 140 150 110 110 92 100 140 140
NG = No GWCL
NS^ Not sampled
Shaded .^exceed'eddWCL^^;^^^
Table 7
DWMRC Duplicate QA/QC Samples To EFR Sample
Contaminant
Parameters Listed in Table 2
GWQS
DRC's sample of
Entrance Spring
Spring 1 (DRC
duplicate sample
of Entrance
Spring)RPD EFR Entrance
Spring Sample
RPD for
DRCSample of
Entrance
Spring
RPD for
DRCSample
of Spring 1
June 16, 2016
Nutrients (mg/L)
Ammonia (as N)25 0.042 0.042
ool; 0.0962 -78.4 -78,4
Nitrate + Nitrite (as N)10 0.39 0.4
_____-M| 0.403 -3.3 -0.7
Heavy Metals (ug/L)
Arsenic 50 2.2 2.2 0.0 5.02 -78.1 -78.1
Beryllium 4 <0.15 <0.15 NC <0.5 NC NC
Cadmium 5 <0.04 <0.04 NC <0.5 NC NC
Chromium 100 <0.88 <0.88 NC <25 NC NC
Cobalt 730 0.89 0.81 9.4 <10 NC NC
Copper 1,300 <20 <20 NC <10 NC NC
Iron 11,000 98 110 -11.5 94 3.7 15.3
Lead 15 <0.1 <0.1 NC <1 NC NC
Manganese 800 210 220 -4.7 210 0.0 4.7
Mercury 2 <0.027 <0.027 NC <0.5 NC NC
Molybdenum 40 2.8 2.6 7.4 <10 NC NC
Nickel 100 0.75 0.56 29.0 <20 NC NC
Selenium 50 3.1 2.8 10.2 15.9 -134.7 -140.1
Silver 100 0.03 0.026 14.3 <10 NC NC
Thallium 2 <0.066 <0.066 NC <0.5 NC NC
Tin 17,000 0.22 0.31 -34.0 <100 NC NC
Uranium 30 22 22 0.0 22.0 0.0 0.0
Vanadium 60 3.3 3.5 -5.9 <15 NC NC
Zinc 5,000 2.2 2 9.5 <10 NC NC
Radiologies (pCi/L)
•’’Gross Alpha 15I5.84+/-1.73 [5.66+/-1.86 0.07|l .46+/-0.294 2.5 2.23
VOC (pg/L)
Acetone 700 6.4 8.3 -25.9 <20 NC NC
Benzene 5 <2.0 <2.0 NC <1.0 NC NC
2-Butanone (MEK)4,000 <0.16 <0.16 NC <20 NC NC
Carbon Tetrachloride 5 <0.19 <0.19 NC <1.0 NC NC
Chloroform 70 <0.16 <0.16 NC <1.0 NC NC
Chloromethane 30 <0.30 <0.30 NC <1.0 NC NC
Dichloromethane 5 0.65 0.85 -26,7 <1.0 NC NC
Naphthalene 100 <0.22 <0.22 NC <1.0 NC NC
Tetrahydrofuran (THF)46 <2 <2
NC <1.0 NC NC
Toluene 1,000 <0.17 <0.17 NC <1.0 NC NC
Xylenes (total)10,000 <0.19 <0.19 NC <1.0 NC NC
Others
Field pH (S.U.)6.5-85 7.83 7.78 0,6 7.24 7.8 7.2
Fluoride (mg/L)4 0.62 0.62 0.0 0.618 0.3 0.3
Chloride (mg/L)NG 75 75 0.0 38 65.5 65.5
Sulfate (mg/L)NG 240 250 -4.1 573 -81.9 -78.5
TDS (mg/L)NG 830 820 1.2 1,060 -243 -25.5
General Inorganics Listed in Part .E.1.(c)(2)(ii)
Carbonate (mg/L)NG <1.1 <1.1 NC <1 Inc NC
Bicarbonate (mg/L)NG 350 360 -2.8 399 -13.08 -10.28
Sodium (mg/L)NG 95 94 1.1 185 -64.29 -65.23
Potassium (mg/L)NG 2.2 2.1 4.7 2.32 -5 31 -9.95
Magnesium (mg/L)NG 40 40 0.0 47.3 -16.72 -16.72
Calcium (mg/L)NG 140 140 0.0 i7e|-22 78 -22.78
NA = Not Analyzed
NC = RPD not calculated because one or both of the concentration were below laboratory detiction limits
NG = No GWCL
RER = Replicate error ratio
RPD = Relative Percent Difference
RPD exceeding 20% for ES their duplicate samples
RPD exceeding 30% for DRC comparing their duplicate sample with ES sample
1. Non-comformance exists when the RER > 2
Table 8
Duplicate QA/QC Samples
Contaminant
Parameters Listed in Table 2 GWQS
Cottonwood
Spring
Back Spring
(duplicate sample of
Cottonwood Spring)RPD
June 16,2016
Nutrients (mg/L)
Ammonia (as N)25 <0.05 <0.05 NC
Nitrate + Nitrite (as N)10 <0.1 <0.1 NC
Heavy Metals (pg/L)
Arsenic 50 <5 5.02 NC
Beryllium 4 <0.5..................<6.5 NC
Cadmium 5 <6.5..................<0.5 NC
Chromium 100 <25 <25 NC
Cobalt 730 <10 <10 NC
Copper 1,300 <10 <10 NC
Iron 11,000 <30 <30 NC
Lead 15 <1...............<1.............NC
Manganese 800 <10 <16..............NC
Mercury 2 <6.5“.................<6.5 NC
Molybdenum 40 <10 <10 NC
Nickel 100 <20 <20 NC
Selenium 50 <5 <5 NC
Silver 100 <10 <10 NC
Thallium 2 <6.5 <0.5 NC
Tin 17,000 <166 <100 NC
Uranium 30 8.84 8.88 -0.45
Vanadium__________________60 <15 <15 NC
Zinc 5,000 <10 <10 NC
Radiologies (pCi/L)
Gross Alpha 15 0.149+/-0.167 ||0.126+/-0.193 0.09
VOC (pg/L)
Acetone 700 <20 <20 NC
Benzene .............5 <1.6................... <1.6 NC
2-Butanone (MEK)4,000 <20....................<20 NC
Carbon Tetrachloride 5 <1.6 <1.6 NC
Chloroform 70 <1.0 <1.6 NC
Chloromethane 30 <1.0 <1.6 NC
Dichloromethane 5 <1.0 <1.0 NC
Naphthalene ...100 <1.0 <1.0 NC
Tetrahydrofuran (THE)46 <1.0 <1.6 NC
Toluene 1,000 <1.0 <i.6 NC
Xylenes (total) 10,000 <1.0 <1.0 NC
Others
Field pH (S.U.)6.5-8.5 7.3 6.57 10.53
Fluoride (mg/L)............................. 4
.................0.466 0.446 4.39
Chloride (mg/L)NG..............................138 133 3.69
Sulfate (mg/L)NG 443 428 3.44
TDS (mg/L)NG 1,070 1,070 0.00
General Inorganics Listed in Part I.E.1.(c (2)(ii)
Carbonate (mg/L)NG <1.0 <1.0 NC_____
Bicarbonate (mg/L)NG..........256 261 -1.93
Sodium (mg/L)NG ....................221 222 -0.45
Potassium (mg/L)NG ....... Q1;j 6.15 -0.65
Magnesium (mg/L)NG 29.5 29.8 -1.01
Calcium (mq/L)NG 102 106 -3.85
NA = Not Analyzed
NC = RPD no calculated because one or more of the concentration were below laboratory detiction limits
NG = No GWCL
RPD = Relative Percent Difference
RPD exceeding 20% for ES their duplicate samples
RER = Replicate Error Ratio
1. Non-comformance exists when the RER > 2
Attachment 2
Energy Fuels Resources (USA) Inc.
225 Union Blvd. Suite 600
Lakewood, CO, US, 80228
303 974 2140
www.energyfuels.com
VIA E-MAIL AND EXPRESS DELIVERY
May 20, 2016
Mr. Scott Anderson
Director of Waste Management and Radiation Control
State of Utah Department of Environmental Quality
195 North 1950 West
Salt Lake City, UT 84114-4880
Dlv of Waste Management
and Radiation Control
MAY 2 ‘I 2016
Re: White Mesa Mill Annual Seeps and Springs Sampling -
Notice Pursuant to Utah Groundwater Discharge Permit UGW370004.
Dear Mr. Anderson:
Energy Fuels Resources (USA) Inc. (“EFRI”) is providing this letter to notify the Division of Waste
Management and Radiation Control (“DWMRC”) of the White Mesa Mill’s (the “Mill’s”) annual seeps and
springs sampling event as required by Utah Groundwater Discharge Permit (the “GWDP”) UGW370004. The
Mill plans to begin the sampling event on Thursday, June 16, 2016.
The Mill staff will attempt to sample the following locations: Coral Canyon Seep, Corral Seep, Ruin Springs,
Cottonwood Seep, Westwater Seep, and Entrance Seep, consistent with the GWDP and the Sampling Plan for
Seeps and Springs (the “Sampling Plan”). As described in the Sampling Plan, several of these locations have
historically been too dry for sampling. Per the Sampling Plan, beginning Thursday, June 16, 2016 the Mill staff
will make three attempts at sampling each location and will document during each attempt whether or not
conditions permit development and sampling.
If you have any questions or require further assistance, please contact Tanner Holliday or Garrin Palmer at
[phone].
Yours very truly,
Energy Fuels Resources (USA) Inc.
Kathy Weinel
Quality Assurance Manager
CC: David Turk
Logan Shumway
Garrin Palmer
Tanner Holliday
David C. Frydenlund
Harold R. Roberts