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HomeMy WebLinkAboutDRC-2018-000567 - 0901a068807a3a7dDepartment of Environmental Quality Alan Matheson Executive Director State of Utah V^C-M-OPO^l GARY R. HERBERT Governor DIVISION OF WASTE MANAGEMENT AND RADIATION CONTROL Scott T. Anderson Director SPENCER J. COX Lieutenant Governor MEMORANDUM TO: FROM: Dean Henderson DATE: January 9, 2018 SUBJECT: Review of the November 28, 2017 Annual Seeps and Springs Sampling Report for Energy Fuels Resources (USA), Inc. White Mesa Uranium Mill, near Blanding, Utah On November 28, 2016 the Division of Waste Management and Radiation Control (“DWMRC”) received the 2017 Annual Seep and Springs Sampling Report (“Report”) [eDocs: DRC-2017-009585] 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 2. July 8, 2016 (“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 9, 2017, that EFR would be sampling the seeps and springs on June 6, 2017. This letter arrived via email to DWMRC on May 9, 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 29, 2017, which met the Plan requirement. 195 North 1950 West • Salt Lake City, UT Mailing Address P.O Box 144880 • Salt Lake City, UT 84114-4880 Telephone (801) 536-0200 • Fax (801) 536-0222 • T.D D. (801) 536-4414 iuiuzu.deq.utuh.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 2017 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. On June 6, 2017 DWMRC staff (Dean Henderson) observed the EFR staff sample Cottonwood Spring, Entrance Spring, and Ruin 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 27, 2017 and they collected a sample. Based on DWMRC staff 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 Ruin 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%. Therefore, the analytical results are comparable (see Table 8). DWMRC Duplicate Sample Comparison The DWMRC collected a split sample of Ruin 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%. Therefore, the analytical results are comparable (see Table 8). . DWMRC Sample Comparison To EFR The RPD comparison between the analytical results found on Table 7 for the DWMRC Ruin Spring and Spring 1 sample and EFR Ruin Spring sample and their duplicate (Back Spring) were below 30%. Therefore, the analytical results are comparable. The RER comparison between the gross alpha analytical results found on Table 7 for the DWMRC Ruin Spring and Spring 1 sample and EFR Ruin Spring sample their duplicate (Back Spring) was < 2. Therefore, the analytical results are comparable. Page 3 Mill Operations Impact on the Seeps and Springs. The analytical results for the 2017 seeps and springs monitoring event are summarized in tables 1 through 5 in Attachment 1 below. Photographs are 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 (9.17pg/L) 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 historic data since 2009 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 1 below. Entrance Spring The only metals detected were arsenic, iron, manganese, and uranium. Manganese was the only metal exceeding its GWQS (800 pg/L) with a concentration of 914pg/L (see Table 1). Historic concentrations starting at 2009 to 2016 have ranged from <10 to 367 pg/L and appears to have an increasing trend starting in 2012. Back ground manganese concentrations exceeding GWQS have been established at monitor wells MW-14, MW-24, MW-25, MW-26, MW-28, MW-29 and MW-32. Also, the former two northern wildlife ponds located approximately half mile west to north-west cross to upgradient of Entrance Spring stopped receiving water in March 2012. Therefore, manganese maybe increasing to exceed its GWQS because the natural concentration of manganese is no longer being diluted by water recharging the aquifer in this area with water from the former two northern wildlife ponds. Therefore, at this time is difficult to determine if the Mill has impacted the Entrance Spring. Should the 2018 sampling data show that manganese concentrations continues to be above GWQS the 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. Toluene was the only VOC concentration detected at 13.1 pg/L witch is below its GWQS of 1000 pg/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 2018 sampling data show that VOC(s) continue to be detected the 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. Gross alpha was below GWQS. A comparison of the historic data since 2009 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 potential indication of Mill impact. Photograph in figure 2. Ruin Spring The only metals detected were Molybdenum, selenium, and uranium. None exceeded GWQS. No VOC detected and gross alpha was below GWQS. Major ions were detected. A comparison of the historic data since 2009 shows that the concentrations of most detected analytes remained approximately the same. Page 4 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. Acetone was the only VOC concentration detected at 23.1 pg/L witch is below its GWQS of 700pg/L. EFR explanation for the detection of acetone in the Report was ’’The acetone is likely the result of laboratory contamination”. At this time DWMRC feels this explanation is reasonable. However, should the 2018 sampling data show that acetone continue to be detected the 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 Westwater Spring. Gross alpha was below GWQS. Major ions were detected. Overall, the data reported for Westwater Spring 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. Sampling Plan for Seeps and Springs In the Vicinity of the White Mesa Uranium Mill. Revision 2. July 8, 2016. Energy Fuels, Letter Subject: White Mesa Uranium Mill Annual Seeps and Springs Sampling - Notice Pursuant to Utah Groundwater Discharge Permit UGW370004, May 9, 2017. Energy Fuels, White Mesa Uranium Mill 2017 Annual Seeps and Springs Sampling Report, November 28, ' 2017. (eDocs: DRC-2017-009585) 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 2. Sampling Entrance Spring on June 6, 2017 Page 7 Figure 3. Sampling Ruin Spring on June 6, 2017. Attachment 1 Tables 1 through 8 Table 1 Summary of Seeps and Springs Analytical Data 2017 Contaminant Parameters Listed in Table 2 GWQS Cottonwood Canyon Spring Entrance Spring (1)Ruin Spring Westwater Seep 6/6/2017 6/6/2017 6/6/2017 10/27/2017 Nutrients (mg/L) Ammonia (as N)25 <0.05 0.247 <0.05 <0.05 Nitrate + Nitrite (as N)10 0.124 >0.1 1.55 <0.1 Heavy Metals (pg/L) Arsenic 50 <5 9.16 <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 <30 371 <30 181 Lead 15 <1 <1 <1 <1 Manganese 800 <10 913 <10 144 Mercury 2 <0.5 <0.5 <0.5 <0.5 Molybdenum 40 <10 <10 17.2 <10 Nickel 100 <20 <20 <20 <20 Selenium 50 <5 <5 10.5 <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 9.17 14.6 8.49 5.17 Vanadium 60 <15 <15 <15 <15 Zinc 5,000 <10 <10 <10 <10 Radiologies (pCi/L) Gross Alpha 15I2.53+/-0.515 1.46+/-0.294 I0.273+/-0.165 I0.810+/-0.254 oo jg'L) Acetone 700 <20 <20 <20 23.1 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 <1.0 <1.0 Dichloromethane 5 <1.0 <1.0 <1.0 <1.0 Naphthalene 100 <1.0 <1.0 <1.0 <1.0 'Tetrahydrofuran (THE)46 <1.0 <1.0 <1.0 <1.0 Toluene 1,000 <1.0 13.1 <1.0 <1.0 Xylenes (total)10,000 <1.0 <1.0 <1.0 <1.0 Others Field pH (S.U.)6.5-8.5 6.59 6.8 6.98 6.87 Fluoride (mg/L)4 0.344 0.615 0.5 0.574 Chloride (mg/L)NG 129 84.6 27.4 27.5 Sulfate (mg/L)NG 409 187 476 318 TPS (mg/L)NG 1,080 752 972 820 General Inorganics Listed in Part I.E.1.(c)(2)(ii) Carbonate (mg/L)NG <1.0 <1 <1 <1 Bicarbonate (mg/L)NG 280 402 208 369 Sodium (mg/L)NG 213 90.3 113 133 Potassium (mg/L)NG 5.72 3.88 3.07 2.33 Magnesium (mg/L) NG 27.1 36.4 30.2 31.7 Calcium (mg/L)NG 99.6 129 145 125 Total anions (meq/L)NG 17.8 14.3 14.9 14.8 Total cations (meq/L)NG 16.6 13.5 14.7 14.7 1 EFR and Utah DWMRC collected dupicate sample and is identified a Back Spring and Spring 1 respectively. See anaylitical results in Table 4 and 7. NG = No GWCL Shaded = exceeded GWCL Table 2 Historic Cottonwood Spring Concentrations Contaminant Parameters Listed in Table 2 GWQS Sampling Event 1 7/25/1977 111/10/1977 7/9/2009 7/7/10 5/31/2011 7/13/2011 6/20/2012 7/16/2013 6/17/2014 6/16/2015 (3,6/16/2016 6/6/2017 Nutrients (mq/L) Ammonia (as N)25 0 13 <0 1 <0.05 <0 05 <0 05 <0 05 <0 05 <0 05 <0 05 0 0512 <0 05 <0 05 Nitrate + Nitrite (as N)10 0 06 0 26 0 1 <0 1 0 1 <0 1 <0 1 <0.1 <0 1 <0 1 <0 1 0 124 Heavy Metals (ug/L) Arsenic 50 T<10 NA <0,05 <5 <5 <5 <5 <5 <5 <5 <5 <5 Beryllium 4 NA NA 0 1 <0 5 <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 <0.5 Chromium 100 t20 T<10 <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 Cobaft 730 NA NA <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 Copper 1,300 t5 t<5 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 Iron 11,000 3,200 110 <30 <30 53 <30 <30 <30 <30 <30 <30 <30 Lead 15 t30 t<50 <1 <i <1 <1 <1 <1 <1 <1 <1 <1 Manganese 800 1100 60 <10 <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 <0 5 Molybdenum 40 <10 NA <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 Nickel 100 NA NA <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 Selenium 50 140 NA <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 Silver 100 4 NA <10 <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 <0 5 Tin 17,000 NA NA <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 Uranium 30 4 NA 8 42 8 24 7 87 8 68 8 17 8 95 9 62 9.12 8 84 917 Vanadium 60 6 <10 <15 <15 <15 <15 <15 <15 <15 <15 <15 <15 Zinc 5,000 60 150 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 Radiologies (pCi/L Gross Aloha I 15 L 10 2±3 11|NA 110 3+/-0 5 10 5+/-0.4 |0 1+/-0 2 l-O 1+/-0 4 -0 2 +/-0 2 1510______I151Q_____1 0 0198 +1-0 112 10 149+/-0 167 lo 648+/-0 945 voc (pg/L) Acetone 700 NA NA <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 Benzene 5 NA NA <1 0 <1.0 <1 0 <1 0 <10 <1 0 <1 0 <1 0 <10 <1 0 2-Butanone (MEK)4,000 NA NA <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 Carbon Tetrachlonde 5 NA NA <1 0 <1.0 <1.0 <1 0 <10 <1 0 <1 0 <1 0 <10 <1 0 Chloroform 70 NA NA <1 0 <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 <10 <1 0 <1.0 <1 0 <10 <1 0 Dichloromethane 5 NA NA <1 0 <1 0 <1 0 <1 0 <10 <1 0 <1 0 <1 0 <10 <1 0 Naphthalene 100 NA NA <1 0 <1.0 <1 0 <1 0 <1.0 <1 0 <1 0 <1 0 <10 <1.0 Tetrahydrofuran (THF)46 NA NA <1 0 2<1 0 <1 0 <1 0 <10 <1 0 <1 0 <1 0 <10 <1 0 Toluene 1,000 NA NA <1 0 <1 0 <1 0 <1.0 <10 <1 0 <1.0 <1 0 <10 <1.0 Xylenes (total)10,000 NA NA <1 0 <1 0 <1.0 <1 0 <1.0 <1 0 <1 0 <1 0 <10 <1 0 Others Field pH (S U )65-85 7.0 8 1 73 7 47 7.55 8 04 7 53 7.25 7.18 73 7.3 6 59 Fluoride (mg/L)4 1 05 0.4 0 38 0 34!0 38 0 38 0417 <1 0 318 0 466 0 344 Chlonde (mg/L).NG 1 71 124 112 113 134 149 118 128 133 138 129 Sulfate (mg/L)NG 333 243 383 389 394 389 356 403 417 442 443 409 TDS (mg/L)NG 1270 780 1.010 900 1030 978 1.040 1.020 968 1.020 1.070 1.080 General Inorganics Listed in Part I.E.1.(c)(2ii!) Carbonate (mg/L)NG 0 0 <1 <1 <1.0 6 <1 <1 0 <1.0 <1 <1 0 <1 0 Bicarbonate (mg/L)NG NA NA 316 340 330 316 326 280 251 200 256 280 Sodium (mg/L)NG 400 115 205 214 229 227 247 217 227 126 221 213 Potassium (mg/L)NG 66 4.3 5.7 5 77 6 59 62 5 53 6.18 3 14 6.11 5 72 Magnesium (mg/L)NG 19 28 25 24.8 25.2 25.2 27 7 23 6 29 31 8 29.5 27.1 Calcium (mg/L) NG 58 133 90.3 92.2 95 4 94 2 101 87 9 99 7 162 102 99 6 Total anions (meq/L)NG NA NA 16.7 22.3 168 173 17 173 17.3 158 18.2 178 Total cations (meq/L)NG NA NA 15.6 21 8 17 168 182 15 9 159 163 173 16.6 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 Spnng See anayhtical 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 6/6/2017 Nutrients (mg/L) Ammonia (as N)25 0.28 <0.05 <0.05 0.32 <0.05 <0.05 <0.05 0.202 0.0962 0.247 Nitrate + Nitrite (as N)10 1.4 1 1.4 0.5 2.8 2.06 3.65 <0.1 0.403 >0.1 Heavy Metals (ug/L) Arsenic 50 <5 <5 <5 <5 <5 <5 <5 5.02 5.02 9.16 Beryllium 4 <0.5 <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 <0.5 Chromium 100 <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 Cobalt 730 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 Copper 1,300 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 Iron 11,000 <30 <30 37 55 34 162 37 295 94 371 Lead 15 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 Manganese 800 54 11 47 84 <10 259 16.1 367 210 913 Mercury 2 <0.5 <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 <10 Nickel 100 <20 <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 <5 Silver 100 <10 <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 <0.5 Tin 17,000 <100 <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 14.6 Vanadium 60 <15 <15 <15 <15 <15 <15 <15 <15 <15 <15 Zinc _5,000 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 Radiologies (pCi/L) Gross Alpha 15I0.9+/-0.6 I.5+/-0.4 I1.5+/-0.3 I1.6+/-0.7 |0.5 +/-0.4 I2.3+/-0.3 FTc)I3.05+/-0.358 11.46+/-0.294 I2.53+/-0.515 oo ig/y Acetone 700 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 Benzene 5 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 2-Butanone (MEK)4,000 <20 <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 <1.0 <1.0 <1.0 Chloroform 70 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 Chloromethane 30 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 Dichloromethane 5 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 Naphthalene 100 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 Tetrahydrofuran (THF)46 <1.0 1<1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 Toluene 1,000 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 1.32 <1.0 <1.0 13.1 Xylenes (total)10,000 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 Others Field pH (S.U.)6.5-85 7.64 7.56 7.96 8.17 7.5 6.41 6.16 6.57 7.24 6.8 Fluoride (mg/L)4 0.7 0.73 0.58 0.58 0.64 0.71 <1 0.606 0.618 0.615 Chloride (mg/L)NG 60 63 49 64 78 139 76.8 75.6 38 84.6 Sulfate (mg/L)NG 178 179 166 171 171 394 219 210 573 187 TPS (mq/L)NG 605 661 571 582 660 1,010 688 680 1,060 752 General Inertpanics 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 <1 Bicarbonate (mg/L)NG 292 332 270 299 298 208 247 324 399 402 Sodium (mg/L)NG 61 4 62.7 62.5 68.6 77.4 118 78.9 93.1 185 90.3 Potassium (mg/L)NG 2.4 2.74 2.6 2.9 2 3.46 1.56 1.62 2.32 3.88 Magnesium (mg/L)NG 26.6 28.9 26.4 28.4 32.7 32.1 34.9 33.3 47.3 36.4 Calcium (mg/L)NG 90.8 96.5 88.8 96.6 105 149 103 131 176 129 Total anions (meq/L)NG 10.3 10.3 9.4 10.5 10.9 16.4 18 13.0 21.0 14.3 Total cations (meq/L)NG 9.47 9.47 9.39 10.2 11.3 15.3 15.2 13.4 20.8 13.5 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 17/25/1977 3/28/2003 7/13/2011 6/20/2012 7/16/2013 6/17/2014 6/16/2015 6/16/2016 6/6/2017 Nutrients (mg/L) Ammonia (as N)25 <0.1 <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 1.6 1.6 1.56 1 54 1 31 1.64 1.55 Heavy Metals Mg/L) Arsenic 50 NA 1 <5 <5 <5 <5 <5 <5 <5 Beryllium 4 NA <10 <0 5 <0 5 <0.5 <0.5 <0 5 <0 5 <0.5 Cadmium 5 t4 <5 <0 5 <0.5 <0 5 <0 5 <0 5 <0.5 <0 5 Ichromium 100 T100 <50 <25 <25 <25 <25 <25 <25 <25 Cobalt 730 NA NA <10 <10 <10 <10 <10 <10 <10 Copper 1,300 t<5 <10 <10 <10 <10 <10 <10 <10 <10 Iron 11,000 20 <50 <30 <30 <30 <30 <30 <30 <30 Lead 15 <50 <50 <1 <1 <1 <1 <1 <i <1 Manganese 800 <5 <10 <10 <10 <10 <10 <10 <10 <10 Mercury 2 t<5 <1 <0 5 <0 5 <0.5 <0.5 <0.5 <0 5 <0.5 Molybdenum 40 NA <100 17 16 <0.5 16 0 183 17.8 17.2 Nickel 100 NA <50 <20 <20 <20 <20 <20 <20 <20 Selenium 50 NA 13 10.2 10.8 16.1 12 10 10 10.5 Silver 100 NA <1 <10 <10 0 01 0.01 <10 <10 <10 Thallium 2 NA <1 <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 Uranium 30 NA 9 8.63 8.68 9 1 9 61 9 03 8.38 8 49 Vanadium 60 <10 <100 <15 <15 <15 <15 <15 <15 <15 Zinc 5,000 15 14 <10 <10 <10 <10 <10 <10 <10 Radiologies (pCi/L) Gross Alpha I 15|NA 1|NA___I-0.05+-0 5 6 b CD .+b A b l<1 0 |0 273+/-0.165 I0.273+/-0 165 I0.273+/-0.165 VOC (ug/L) Acetone 700 NA NA <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 2-Butanone (MEK)4,000 NA NA <20 <20 <20 <20 <20 <20 <20 Carbon Tetrachloride 5 NA NA <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 Chloromethane 30 NA NA <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 Naphthalene 100 NA NA <1 0 <1 0 <1 0 <1 0 <1.0 <1.0 <1.0 Tetrahydrofuran (THE)46 NA NA <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 Xylenes (total)10,000 NA NA <1 0 <1.0-<1.0 <1.0 <1.0 <1 0 <1.0 Others Field pH (S.U.)65-8.5 7.8 NA 8 14 7 53 7.36 7 08 7.27 7.27 6 98 Fluoride (mg/L)4 0.6 NA 05 0.52 0.538 <1 0 445 0.541 0.5 Chloride (mg/L)NG 25 28.1 44 28 26.3 27.1 27 5 24.4 27.4 Sulfate (mg/L)NG 472 503 484 464 553 553 528 490 476 TPS (mg/L)NG 975 NA 905,1,000 1,010 984 1,000 916 972 General Inorganics Listed in Part I.E.1.c)(2)(ii) Carbonate (mg/L)NG 0 1 <1 <1 <1 <1 <1 <1 Bicarbonate (mg/L)NG NA NA 239 237 208 204 200 193 208 Sodium (mg/L)NG 200 110 111 115 118 119 126 105 113 Potassium (mg/L)NG 28 26 3.3 35 3.46 3.24 3 14 3.18 3 07 Magnesium (mg/L)NG 265 34 8 31.1 31 9 32 1 35 4 31 8 31.1 30 2 Calcium (mg/L)NG 375 . 153 148 147 149 150 162 138 145 Total anions (meq/L)NG NA NA 154 14.5 164 164 158 14.8 14.9 IITotal cations (mea/L)NG NA NA 14 9 15.1 153 153 16.3 14 1 14.7 1 Dames and Moore January 30, 1978, Environmental Report White Mesa Uraium Project San Juan County, Utah, Energy Fuels, Inc 2 THE sampled on November 3, 2010 NA = Not analyzed NG = No GWCL X = 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 10/27/2017 Nutrients (m< Ammonia (as N)25 <0.05 0.05 0.06 0.123 0.123 <0.05 Nitrate + Nitrite (as N)10 0.8 <0.1 <0.1 <0.1 <0.1 <0.1 Heavy Metals (pg/L) Arsenic 50 <5 <5 12.3 <5 <5 <5 Beryllium 4 <0.5 <0.5 0.91 <0.5 <0.5 <0.5 Cadmium 5 <0.5 <0.5 0.9 <0.5 <0.5 <0.5 Chromium 100 <25 <25 <25 <25 <25 <25 Cobalt 730 <10 <10 <10 <10 <10 <10 Copper 1,300 <10 <10 16 <10 <10 <10 Iron 11,000 <30 56 4,540 <30 40 181 Lead 15 <1 <1 41.4 <1 <1 <1 Manganese 800 37 87 268 171 55.5 144 Mercury 2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 Molybdenum 40 <10 29 <10 <10 <10 <10 Nickel 100 <20 <20 29 <20 <20 <20 Selenium 50 <5 <5 <5 <5 <5 <5 Silver 100 <10 <10 <10 <10 <10 <10 Thallium 2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 Tin 17,000 <100 <100 <100 <100 <100 <100 Uranium 30 15.1 46.6 6.64 2.1 19 5.17 Vanadium 60 <15 <15 34 <15 <15 <15 Zinc 5,000 <10 <10 26 <10 <10 <10 Radiologies (pCi/L) Gross Alpha 15l0.3-*7-0.2 I0.3+/-0.3 0.5+/-0.2 1-0.0116+/-0.126 I0.00612+/-0.193 I0.810+/-0.254 VOC (ug/L Acetone 700 <20 <20 <20 <20 <20 23.1 Benzene 5 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 2-Butanone (MEK)4,000 <20 <20 <20 <20 <20 <20 Carbon Tetrachloride 5 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 Chloroform 70 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 Chloromethane 30 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 Dichloromethane 5 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 Naphthalene 100 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 Tetrahydrofuran (THF)46 <1.0 1<1.0 <1.0 <1.0 <1.0 <1.0 Toluene 1,000 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 Xylenes (total)10,000 <1.0 <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 6.87 Fluoride (mg/L)4 0.7 0.6 0.54 0.424 0.618 0.574 Chloride (mg/L)NG 41 40 21 32.6 38 27.5 Sulfate (mg/L)NG 646 607 354 392 573 318 TPS (mg/L)NG 1,370 1,270 853 896 1,060 820 General Inorganics Listed in Part I.E.1.(c)2)(ii) Carbonate (mg/L)NG <5 <1 <1 <1 <1 <1 Bicarbonate (mg/L)NG 465 450 371 359 399 369 Sodium (mg/L)NG 195 160 112 139 185 133 Potassium (mg/L) NG 2.4 6.57 3.9 1.98 2.32 2.33 Magnesium (mg/L)NG 26.6 44.7 34.7 34 47.3 31.7 Calcium (mg/L)NG 191 179 247 150 176 125 Total anions (meq/L)NG 22.3 22.3 14.1 16.3 21.0 14.8 Total cations (meq/L)NG 21.8 21.8 20.1 16.4 20.8 14.7 1. THF sampled on November 3, 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 Ta b l e 6 Su m m a r y of DW M R C Hi s t o r i c Se e p s an d Sp r i n g s Du p l i c a t e An a l y t i c a l Da t a NG = No GW C L NS = No t sa m p l e d Sh a d e d = ex c e e d e d GW C L Table 7 RPD and RPR for DWMRC Duplicate QA/QC Samples and Comparing to EFR Duplicate Samples Sample Date June 6, 2017 Contaminant Parameters Listed in Table 2 GWQS Ruin Spring Spring 1 (duplicate sample of Ruin Spring) RPD EFR Ruin Spring PDR for DRCSample of Ruin Spring RPD for DRCSample of Spring 1 EFR Back Spring PDR for DRCSample of Ruin Spring RPD for DRCSample of Spring 1 Nutrients (mq/L) Ammonia (as N)25 <0.1 <0.1 NC |<0.05 NC NC <0.05 NC NC Nitrate + Nitrite (as N)10 1.5 1.4 6.9 155 -3.3 -10.2! 1.52 -1.3 ______ -8.2 Heavy Metals (uq/L) Arsenic 50 <5 <5 NC <5 NC NC <0.5 NC NC Beryllium 4 <i <1 NC <0.5 NC NC <0.5 NC NC Cadmium 5 <1 <i NC <0.5 NC NC <0.5 NC NC Chromium 100 <3 <3 NC <25 NC NC <25 NC NC Cobalt 730 <1 <1 NC <10 NC NC <10 NC NC Copper 1,300 <2 <2 NC <10 NC NC <10 NC NC Iron 11,000 <1 <1 NC <30 NC NC <30 NC NC Lead 15 <1 <1 NC <1 NC NC <1 NC NC Manganese 800 <2 <2 NC <10 NC NC <10 NC NC Mercury 2 <0.2 <0.2 NC <0.5 NC NC <0.5 NC NC Molybdenum 40 16 16 0.0 17.2 -7.2 -7.2| 17.0 -6.1 -6.1 Nickel 100 <2 <2 NC <20 NC NC <20 NC NC Selenium 50 11 10 9.5 10.5 4.7 -4.9 10.8 1.8 -7.7 Silver 100 <1 <1 NC <10 NC NC <10 NC NC Thallium 2 <1 <1 NC <0.5 NC NC <0.5 NC NC Tin 17,000 <10 <10 NC <100 NC NC <100 NC NC Uranium 30 8.0 8.3 -3.7 8.49 -5.9 -2.3 8.36 -4.4 -0.7 Vanadium 60 <5 <5 NC <15 NC NC <15 NC NC Zinc 5,000 <10 <10 NC <10 NC NC <10 NC NC Radiologies (pCi/L) (1> PER for Gross Alpha 15lo.879+/-5.84 I7.36+/-4.49 0.88l0.273+/-0.165 0.1]1.58|0.117+/-0.250 0.11 1.58 VOC (ug/L) Acetone 700 <10 <10 NC <20 NC NC <20 NC NC Benzene 5 <1 <1 NC <1.0 NC NC <10 NC NC 2-Butanone (MEK)4,000 <6 <6 NC <20 NC NC <20 NC NC Carbon Tetrachloride 5 <1 <1 NC <1.0 NC NC <1.0 NC NC Chloroform 70 <1 <1 NC <1.0 NC NC <1.0 NC NC Chloromethane 30 <2 <2 NC <1.0 NC NC <1.0 NC NC Dichloromethane 5 <2 <2 NC <1.0 NC NC <1.0 NC NC Naphthalene 100 <1 <1 NC <1.0 NC NC <1.0 NC NC Tetrahydrofuran (THE)46 <7 <7 NC <1.0 NC NC <1.0 NC NC Toluene 1,000 <1 <1 NC <1.0 NC NC <1.0 NC NC Xylenes (total)10,000 <2 <2 NC <1.0 NC NC <1.0 NC NC Others Field pH (S.U.)6.5-85 8.1 8.0 12 6.98 14.9 13.6 6.57 20.9 19.6 Fluoride (mg/L)4 0.51 0.52 -1.9 0.5 2.0 3.9 0.499 2.2 4.1 Chloride (mg/L)NG 28 28 0.0 27.4 2.2 2.2 26.6 5.1 5.1 Sulfate (mg/L)NG 530 530 0.0 476 10.7 10.7 517 2.5 2.5 TPS (mq/L)NG 1000 1100 -9.5 972 2.8 12.4 996 0.4 9.9 General Inorqanics Listed in Part I.E.1.(c)(2HH) Carbonate (mg/L)NG <1.1 <1.1 NC <1 NC NC <1.0 NC NC Bicarbonate (mg/L)NG 190 190 0.0 208 -9.05 -9.05 201 -5.6 -5.6 Sodium (mg/L)NG 120 120 00 113 6.01 6.01 112 6.9 6.9 Potassium (mg/L)NG 3.8 3.6 5.4 3.07 21.25 15.89 3.05 21.9 16.5 Magnesium (mg/L)NG 31 31 0.0 30.2 2.61 2.61 30.0 3.3 3.3 Calcium (mq/L)NG 150 150 0.0 145 3.39 3.39 144 4.1 4.1 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 Ruin Spring Back Spring (duplicate sample of Ruin Spring)RPD June 16,2016 Nutrients (mg/L) Ammonia (as N)25 <0.05 <0.05 NC Nitrate + Nitrite (as N)10 1.55 1.52 1.95 Heavy Metals (Mg/L) Arsenic 50 <5 <0.5 NC Beryllium 4 <0.5 <0.5 NC Cadmium 5 <0.5 <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 <10 NC Mercury 2 <0.5 <0.5 NC Molybdenum 40 17.2 17.0 1.17 Nickel 100 <20 <20 NC Selenium 50 10.5 10.8 -2.82 Silver 100 <10 <10 NC Thallium 2 <0.5 <0.5 NC Tin 17,000 <100 <100 NC Uranium 30 8.49 8.36 1.54 Vanadium 60 <15 <15 NC Zinc 5,000 <10 <10 NC Radiologies (pCi/L) Gross Alpha 15I0.273+/-0.165 0.117+/-0.250 0.52 VOC (pg/L) Acetone 700 <20 <20 NC Benzene 5 <1.0 <1.0 NC 2-Butanone (MEK)4,000 <20 <20 NC Carbon Tetrachloride 5 <1.0 <1.0 NC Chloroform 70 <1.0 <1.0 NC Chloromethane 30 <1.0 <1.0 NC Dichloromethane 5 <1.0 <1.0 NC Naphthalene 100 <1.0 <1.0 NC Tetrahydrofuran (THF)46 <1.0 <1.0 NC Toluene 1,000 <1.0 <1.0 NC Xylenes (total)10,000 <1.0 <1.0 NC Others Field pH (S.U.)6.5-8.5 6.98 6.57 6.05 Fluoride (mg/L)4 0.5 0.499 0.20 Chloride (mg/L)NG 27.4 26.6 2.96 Sulfate (mg/L)NG 476 517 -8.26 TDS (mq/L)NG 972 996 -2.44 General Inorganics Listed in Part I.E.1.(c)(2)(ii) Carbonate (mg/L)NG <1 <1.0 NC Bicarbonate (mg/L)NG 208 201 3.42 Sodium (mg/L)NG 113 112 0.89 Potassium (mg/L)NG 3.07 3.05 0.65 Magnesium (mg/L)NG 30.2 30.0 0.66 Calcium (mq/L)NG 145 144 0.69 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 a 2 Attachment 2 EFR Seeps and Springs Sampling Notice 1/5/2018 State of Utah Mail - Notice Pursuant to Utah Groundwater Discharge Permit UGW370004 - White Mesa Mill Annual Seeps and Springs Sampling Dean Henderson <dhenderson@utah.gov> Notice Pursuant to Utah Groundwater Discharge Permit UGW370004 - White Mesa Mill Annual Seeps and Springs Sampling 2 messages Kathy Weinel <KWeinel@energyfuels.com> Tue, May 9, 2017 at 12:55 PM To: "standerson@utah.gov" <standerson@utah.gov> Co: Phillip Goble <pgoble@utah.gov>, Dean Henderson <dhenderson@utah.gov>, Mark Chalmers <mchalmers@energyfuels.com>, David Frydenlund <DFrydenlund@energyfuels.com>, David Turk <DTurk@energyfuels.com>, "N. Tanner Holliday" <tholliday@energyfuels.com>, Garrin Palmer <GPalmer@energyfuels.com>, Scott Bakken <SBakken@energyfuels.com>, Logan Shumway <LoShumway@energyfuels.com> Mr. Anderson, Attached please find a Notice Pursuant to Utah Groundwater Discharge Permit UGW370004 for the White Mesa Mill Annual Seeps and Springs Sampling. A hardcopy has been sent for your convenience. Please contact me if you have any questions on this submittal. Kathy Weinel 2017 Seeps and Springs Sampling Notice.pdf“ 51K Scott Anderson <standerson@utah.gov> Tue, May 9, 2017 at 1:35 PM To: Kathy Weinel <KWeinel@energyfuels.com> Cc: Phillip Goble <pgoble@utah.gov>, Dean Henderson <dhenderson@utah.gov>, Mark Chalmers <mchalmers@energyfuels.com>, David Frydenlund <DFrydenlund@energyfuels.com>, David Turk <DTurk@energyfuels.com>, "N. Tanner Holliday" <tholliday@energyfuels.com>, Garrin Palmer <GPalmer@energyfuels.com>, Scott Bakken <SBakken@energyfuels.com>, Logan Shumway <LoShumway@energyfuels.com> Thank you. [Quoted text hidden] Scott T. Anderson I Director 0203 UTAH DLPAqiv-Exs" of fcNVIftON v tN ' A'- <JU/Uliv WASTE MANAGEMENT S RADIATION CONTROL https://mail.google.com/mail/u/0/,?ui=2&ik=50c70a6199&jsver=1QCYKmliAi4.en.&view=pt&cat=Energy%20Fuels%20Resourses%2Fsprings%20sampli... 1/1 Energy Fuels Resources (USA) Inc. 225 Union Blvd. Suite 600 Lakewood, CO, US, 80228 303 974 2140 www.energy fuels.com VIA E-MAIL AND EXPRESS DELIVERY May 9,2017 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 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 Tuesday, June 6,2017. 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”). If you have any questions or require further assistance, please contact Tanner Holliday or Garrin Palmer at (435) 678-4115. 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 Mark S. Chalmers