DRC-2015-010266 - 0901a06880740008

State of Utah
GARY R. HERBERT
Governor
SPENCER J. COX
Lieutenant Governor
Department of
Environmental Quality
Alan Matheson
Executive Director
DIVISION OF WASTE MANAGEMENT
AND RADIATION CONTROL
Scott T Anderson
Director ___ ,___ __ _ ___DRC-2015- 0102G6
MEMORANDUM
TO:
FROM:
DATE:
Phil Goble pul?
Dean Henderson ^/' 0/*
September 10, 2015
SUBJECT: Review of the 2014 Annual Tailings Cells Wastewater Sampling Report
for the Energy Fuels Resources (USA), Inc
White Mesa Uranium Mill, near Blanding, Utah
This is a review of the 2014 Annual Tailings Cells Wastewater Sampling Report dated November 24,
2014 (“Report”) for the Energy Fuels Resources (USA), Inc. (“EFR”) White Mesa Uranium Mill, near
Blanding, Utah (“Mill”). For the review of the 2014 Report the following enforcement documents were
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.
• Utah Department of Environmental Quality Division of Radiation Control Guidance for
Groundwater Split Sample Collection at Uranium Mill Operations, August 7, 2007.
• Tailings and slimes Drain Sampling Program (hereafter “Plan”) Revision 2.1 dated July 30,
2012.
Summary of Compliance
EFR informed the Utah Division of Waste Management and Radiation Control (“DWMRC”) in a letter
dated June 27, 2014, that EFR would be sampling the tailings cell wastewater on August 19, 2014. The
letter from EFR provided notice prior to sampling as required in Part I.E. 10(d)(6) of the Permit. Part
I.E. 10(d) of the Permit requires EFR to annually sample the tailings cells wastewater in August each
year therefore the August 19, 2014 sampling date meets this requirement.
Section 6 of the Plan requires the Report to be submitted to DWMRC on or before December 1, of each
year. The Report was received by DWMRC on November 24, 2014, 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 [phone] • Fax [phone] • T.D.D. [phone]
umrw.deq.utah.gov
Printed on 100% recycled paper
Page 2
EFR collected tailing cell wastewater samples from Tailings Cells 1, 3, 4A, and 4B, and Tailings Cell 2
Slimes Drain, and Tailings Cells 4A and 4B Leak Detection Systems (“EDS”). The EDS for Tailings
Cells 1, 2, and 3 were dry and not sampled. DWMRC staff Dean Henderson collected a split sample of
Tailings Cell 2 Slimes Drain and also witnessed EFR staff sample all the other wastewater sample
locations. EFR sampled all available tailing cell wastewater sample locations as required in Part I.E.10
of the Permit.
The following meet the requirements in Part I.E.10 of the Permit:
• Approved analytical methods.
• Parameter holding times.
• Laboratory receipt Parameter Temperature.
• Certified Laboratory.
• Analyzed for parameters required in Part I.E. 10(d)( 1) of Permit.
• Collected duplicate sample.
The Report met all of the following reporting requirements in Section 6 of the Plan:
1) Description of sampling methodology, equipment and decontamination procedures
identify all quality assurance samples, e g trip blanks, equipment, blanks, duplicate
samples.
2) Analytical data interpretation for each tailing cell, slimes drain, and leak detection system
sample.
3) Written summary and conclusions of analytical results,
4) Table summarizing historic analytical results,
5) QA evaluation.
6) All field data sheets accompanying the sampling event.
7) Copies of the laboratory reports.
8) Tailings and Slime Drains System Sample Locations Map.
Duplicate Sample Comparison
Comparisons of duplicate samples analytical results are summarized in Table 6 Attachment 1 below. To
determine if samples results between two samples from the same laboratory are comparable a relative
percent difference (“RPD”) of 20% is acceptable (DRC 2007). To determine if samples results between
two samples from two different laboratories are comparable a RPD of 30% is acceptable (DRC 2007).
For radiologic duplicate sample a relative error ratio is calculated (“RER”). A RER <2 is acceptable
(DRC 2007).
The DWMRC collected a duplicate sample of Tailings Cell 2 Slimes Drain with EFR. The DWMRC
collected a duplicate of this location and identified it as “Cell 6”. The RPD comparisons between the
analytical results were below 20% with the exception of ammonia (137%), toluene (76.9%), xylenes
(28.6%) and fluoride (23.5%). Because the remainder analytical results comparisons between the two
samples had RPD <20%, and the RER for gross alpha was <2 DWMRC staff feels these RPD
exceedances are not a concern and the analytical results between the two samples are comparable.
Page 3
EFR collected a duplicate of Tailings Cell 4A and identified it as “Cell 65”. The RPD comparisons
between the analytical results were below 20% with the exception of uranium (24.7%) and zinc (20.9%).
The RER for gross alpha was exceeded (104). Because the remainder analytical results comparisons
between the two samples had RPD <20% DRC staff feels the two RPD the one RER exceedances is not
a concern and the analytical results between the two samples are comparable.
The RPD comparison between the analytical results for DWMRC Tailing Cell 2 Slimes Drain and its
duplicate Cell 6 sample and EFR Tailing Cell 2 Slimes Drain were below 30% with the exception of the
following shown in the table below:
Contaminant RPD For DWMRC Tailing
Cell 2 Slimes Drain
RPD For DWMRC Tailing
Cell 6 (duplicate sample of
Cell 2 Slimes Drain)
Ammonia 143.1%<30%
Nitrate 64.2% 59.3%
Beryllium <30%34.8%
Iron 34.8% 33.7%
Selenium 53.4% 51.9%
Thallium 35.8% 32.2%
Zinc 69.9% 79.6%
1 -Methylnaphalane 37% 30.8%
2-Methylnaphalane 30.8%<30%
Fluoride 177%171%
Calcium 35.3% 33.2%
In addition, the RER comparison of gross alpha for DWMRC Tailing Cell 2 Slimes Drain and its
duplicate Cell 6 sample to EFR Tailing Cell 2 Slimes Drain was exceeded (4.9 and 6.9 respectively).
The purpose for annual monitoring of the tailings cells wastewater at the Mill is to inventory the
contaminants and their concentrations. Therefore, even though duplicate sample shows in the table
above that 11 of the contaminants exceeded the RPD of 30% and the RER was exceeded the purpose for
annual monitoring the tailing cells wastewater was accomplished and no further action is recommended.
2014 Mill Operations Impact on the Wastewater in Tailings Cells
The analytical results for the 2014 Tailings Cells Wastewater Monitoring Event are summarized in
tables 1 through 6 in Attachment 1 below. Based on the tailings cells wastewater sampling analytical
results all concentrations for the 2014 tailing cell wastewater monitoring event appear to have relatively
similar concentrations to historic monitoring events. Therefore, the addition of wastewater to the
tailings cells in 2014 appears not to have impacted historic wastewater concentrations in the tailing cells.
Conclusion on Report
Based on DWMRC staff observation of EFR staff performing the sampling and monitoring on August
19, 2014 and after the DWMRC review of the Report, it appears that EFR appropriately followed the
requirements in the Permit, QAP and Plan and no further action is required of EFR.
Attachment 1
Tables 1-6
Table 1
Historic Analytical Data for Wastewater in Cell 1
Parameter GWQS Cell 1
1987 2003 2007 2008 2009 2010 |2011 | 2012 |2013 | 2014
Nutrients (ma/LI
Ammonia (as N)25 7800 3308 10628 5250 15,200 8,120 12,900 9,750 3,900 5,700
Nitrate & Nitrite (as N)10 <100 41 8 269 4 64 9 142 58 212 556 128 53
Heavy Metals (ug/L)
Arsenic 50 440,000 121,267 849,000 271,000 436,000 74,400 299,000 25,500 9,800 249,000
Beryllium 4 <2000 475 2,262 500 410 338 1,270 3,180 415 448
Cadmium 5 6,600 3,997 29,320 8,790 9,120 2,940 13,700 307,000 2,380 3,060
Chromium too 13,000 6,365 29,940 6,760 18,700 5,620 22,700 12,100 8,350 13,200
Cobalt 730 12,000 NA 88,240 23,500 97,500 16,200 56,000 53,100 25,500 56,500
Copper 1,300 740,000 196,667 881,000 360,000 168,000 125,000 483,000 885,000 544,000 3,420,000
Iron 11,000 3,400,000 2,420,000 1,348,000 3,280,000 2,390,000 3,400.000 8,940,000 840,000 1,420,000 2,520,000
Lead 15 <2000 3,289 27,420 11,200 10,600 9,240 23,600 17,000 2,810 13,500
Manganese 800 140,000 162,167 990,200 206,000 723,000 173,000 735,000 1,560,000 188,000 162,000
Mercury 2 NA NA ND ND 761 7 20 61 40 117 6 2 125
Molybdenum 40 240,000 5,055 415,600 106,000 142,000 35,300 235,000 434,000 16,800 68,800
Nickel 100 370,000 3,695 40,860 320,000 156,000 27,500 43,700 15,000 39,100 129,000
Selenium 50 <2000 2,028 15,420 13,000 14,800 5,220 11,600 8,090 2,690 3,970
Silver 100 <5000 NA 1,559 449 558 155 1,110 4,310 329 336
Thallium 2 450,000 NA 408 165 387 193 560 13 63 876
Tin 17,000 <5000 NA 6,512 1,240 2,290 263 1,500 <100 <0 1 <17
Uranium 30 105,000 134,517 788,600 416,000 578,000 159,000 838,000 1,450,000 140,000 137,000
Vanadium 60 280,000 348,000 2,208,200 1,200,000 773,000 752,000 2,500,000 1,940,000 98,000 485,000
Zinc 5,000 13,000,000 NA 642,940 476,000 229,000 171,000 398,000 811.000 228,000 229.000
Volatile Organic Compounds (ug/L)
Acetone 700 35 NA 66 5 110 710 260 80 310 41 1 >700
Benzene 5 <5 NA ND ND <1 <1 <1 <1 <1 <5
2-Butanone (MEK)4,000 NA NA ND ND 120 65 <20 200 <20 <4,000
Carbon Tetrachloride 5 <5 NA ND ND <1 <1 <1 <1 <1 <5
Chloroform 70 8 NA 67 66 16 49 13 19 76 <70
Chloromethane 30 NA NA ND 94 11 44 36 4 <1 <30
Dichlormethane
(Methylene Chloride)5 11 0 NA ND ND 2 <1 <1 2 5 <5
Naphthalene 100 <10000 NA <10 ND 1 1 54 20 30 <1 <100
Tetrahydrofuran 46 NA NA 150 0 <20 <100 <10
<500 ’<10 <1 <46
Toluene 1,000 <5 NA ND ND <l”<1 <1 <1 <1 <1,000
Xylenes (total) 10.000 <5 NA ND ND <1 <1 <1 <1 <1 <10.000
Radiologies (pCi/L)
Gross Alpha I isIna 1 |2i365,667I i2i29,380I (2)21.900l 16.500±60I 11.300+/-82 I 3.610+/-14 4I 12.600+/-73 2 I 32.700+/-386I 331.000+/-710
|1>Semi Volatile Organic Compounds (uq/L)
Benzidine NS NA <10 <10 <10 <10 <10 41
Bis(2-etvlhexvl)phthatate NS <10 27 <10 <10 <10 <10
Diethyl phthalate NS 170 <10 <10 <10 <10 <10
Pyridine NS <10 <10 <10 <10 <10 32
Others
Lab pH (S U )6 5-8 5 07 1 88 08 1 53 1 15 2 73 2 23 1 9 2 74 1 3
IDS (mg/L)NS 120,000 62,000 357,400 131,000 140,000 130,000 216,000 342,000 149,000 159,000
Anions (meq/L)NA 5,430 2,450 4,750 5,550 2,370 2,910
Cations (meq/L)NA 5,660 2,360 4,720 5,840 1.270 1,220
General Inorganics (mg/L)
Carbonate as C03 NS <5 <1 ND ND <1 <1 <1 <1 <1 <1
Bicarbonate as HC03 NS <5 NA ND ND <1 <1 <1 <1 <1 <1
Calcium NS 630 307 " 484 604 635 711 577 426 768 404
Chloride NS 8,000 6,728 37,340 9,830 20,700 7,440 33,800 78,000 9,900 11,600
Fluoride (mg/L)4 0 3,008 32 0 0 28 69 63 4,130 2,380
Magnesium NS 7,900 5,988 21,220 6,550 16,200 5,410 14,300 16,000 4,470 5,530
Potassium NS NA 647 5,698 1,880 4,140 1,840 4,510 9,750 6,580 3,010
Sodium NS 10,000 8,638 62,600 13,200 39,000 16,700 29,500 41,700 15,900 12,200
Sulfate NS 190,000 63,667 287,600 118,000 232,000 107,000 182,000 158,000 100,000 124.000
1 Only histone detectable Semi Volatile Organic Compound(s) concentrations listed
2 No error term provieded
Shaded where labontory detection limit above GWOS
NA = Not analyzed
NO = Below laboratory detection limit Note, the report did not include the detection limit
NS = No Groundwater Quality Standard
Table 2
Historic Analytical Data for Wasterwater in Cell 2 Slimes Drain
Parameter GWQS Cell 2 LDS Slimes C2
2009 L 2010 2007___I 2008 I 2009 I! 2010 II 2011 II 2012 I 2013 I 2014
Nutrients (mq/U
Ammonia (as N)25 33 07 4,020 3,620 3,240 3,620 2,940 3,540 1,880 3,500
Nitrate & Nitnte (as U)10 3 2 30 9 20.3 I 38 ____ 126 38 27 L 47 35
Heavy Metals (uq/L)
Arsenic 50 <5 <5 26,900 19,300 14,200 23,500 17,800 19,400 21,000 19,800
Beryllium 4 <0 5 <0.5 298 245 271 267 231 251 262 197
Cadmium 5 33 1.1 5,500 5,840 5,510 6,370 5,580 5,290 5,780 6,480
Chromium 100 <25 <25 2,750 2,450 2,230 2,510 2,380 2,350 2,290 1,630
Cobalt 730 314 <10 46,500 43,800 38,700 48,200 42,500 48,700 44,900 46,700
Copper 1,300 59 120 106,000 154,000 170,000 148,000 132,000 138,000 137,000 126,000
Iron 11,000 208 37 0 2,770,000 3.310,000 3,230,000 2,720,000 2,960,000 2,850,000 2,810,000 2,180,000
Lead 15 <1.0 <1.0 566 528 403 586 501 629 515 638
Manganese 800 1,810 395.0 117,000 130,000 160,000 144,000 123,000 141,000 122,000 98,000
Mercury 2 <0.5 0.5 ND ND <5 <4 11 1 1 9 <0.5 <2
Molybdenum 40 21 13.0 4,080 3,190 2,250 4,630 3,510 3,810 3,650 4,250
Nickel 100 948 <20 123,000 122,000 108,000 126,000 111,000 125,000 108,000 127,000
Selenium 50 7.9 9.4 422.0 647 0 726 844 714 711 678 1,020
Sliver 100 <10 <10 ND ND <10 <10 <10 <10 <10 <100
Thallium 2 0.9 <0 5 361 703 358 470 371 338 278 402
Tin 17,000 <100 <100 ND ND <100 <100 <100 <100 <100 <17,000
Uranium 30 83 8 79 6 23,000 0 29,200,0 29,900 30,600 27,100 33,400 22,800 26,400
Vanadium 60 22 <15 409,000 463,000 536,000 469,000 454,000 475,000 452,000 497,000
Zinc 5.000 4.220 78.0 767.000 750.000 582.000 652.000 574.000 639.000 631.000 405,000
Volatile Organic Compounds (uq/L)
Acetone 700 <20 <20 550 410 570 460 690 600 384 >700
Benzene 5 <1 <1 ND ND <1 <1 <1 <1 <1 <5
2-Butanone (MEK)4,000 <20 <20 NO ND 100 83 130i 100 95 5 <4,000
Carbon Tetrachlonde 5 <1 <1 ND ND <1 <1 <1 <1 <1 <5
Chloroform 70 <1 <1 20 17 16 15 20 16 21.4 <70
Chloromethane 30 <1 <1 1.8 ND 22 2.3 2 3 20 <30
Dichlormethane
(Methylene Chloride)5 <1 <1 ND ND <1 <1 <1 <1 <1 <5
Naphthalene 100 <1 <1 14 75 16 17 13 12 168 <100
Tetrahydrofuran 46 <100 6.13 15 ND <100 <10 <10 3.2 40 <46
Toluene 1,000 <1 <1 1 7 ND 2.6 26 3 2 3.2 <1,000
Xvlenes (total)10,000 <1 <1 1 5 ND <1 2.2 <1.0 20 60 <10,000
Radiologies (pCi/L)
Gross Alpha _____________15 13.5+1 8 I7 3+/-2.6 11.290 M.570 11580±18 6 1 1000+/-24 611230+/-8 4 I1370+/-22.4 I2270+/-101 [6J)90+/-98 1
(1)Semi Volatile Organic Compounds (pg/L)
1-Methylnaphthalene NA NA NA i| NA <10 <10 <10 <10 <10 11
2-Methylnaphthalene NA NA NA NA <10 <10 <10 <10 <10 11
Phenol NA NA NA NA <10 10.7 <10 <10 <10 <10
Others
Field pH (S U.)6 5-8.5 66 7 36 3 18 3.24 3 11 3.39 3 18 3 3 02 3.1
TDS (mg/L)NS 6,750 5,210 84,300 74,600 84,100 79,900 80,200 83,800 92,200 74,900
Anions (meq/L)109 80 9 NA NA 1,580 1,430 1,430 1,320 1,830 1,400
Cations (meo/L)105 82 3 NA NA 1.430 1.370 1.380 1.470 485 511
General Inorganics (me|/L)
Carbonate as C03 NS <1 <1 ND ND <1 <1 <1 <1 <1 <1
Bicarbonate as HC03 NS 168 324 ND ND <1 <1 <1 <1 <1 <1
Calcium NS 711 615 572 528 508 496 474 462 465 322
Chlonde NS 1,750 1,360 3,700 3,860 2,750 3,510 3,110 3,830 3,270 3,720
Fluonde 4 <0.1 04 33 ND <0 1 24 2.1 1 32 161 130
Magnesium NS 596 454 4,100 4,030 3,750 3,790 3,640 3,760 3,320 2,780
Potassium NS 22 13 636 560 689 620 636 611 622 489
Sodium NS 412 318 4,050 4,600 4,410 4,770 4,590 4,380 3,980 3,130
Sulfate NS 2.700 1.780 60,600 74.000 72.200 63.700 64,200 58,300 83.700 62,200
1 Only detectable Semi Volatile Organic Compound(s) concentrations listed
2 No error term provieded.
NA = Not analyzed
ND = Below laboratory detection limit Note, the report did not include the detection limit
NS » No Groundwater Quality Standard
Table 3
Historic Analytical Data for Wastewater in Cell 3
Parameter GWQS Cell 3
1987 2009 || 2010 || 2011 2012 || 2013 | 2014
Nutrients (mg/L)
Ammonia (as N)25 139 21,600 2,650 6,470 6,840 100 3,030
Nitrate & Nitrite (as N)10 <100 142 26 261 64 277 59.5
Heavy Metals (pg/L)
Arsenic 50 163,000 <5 52,900 263,000 4,340 66,000 2,920
Beryllium 4 540 905 206 1,570 678 ..............2,570 222
Cadmium 5 2,600 <0.5 1,960 12,200 3,460 24,000 2,550
Chromium 100 120,000 <25 3,360 22,800 10,900 30,600 2,380
Cobalt 730 480,000 <10 13,000 76,000 76,100 99,700 20,800
Copper 1,300 360,000 <10 89,000 768,000 ........379,000 954,000 139,000
Iron 11,000 2,100,000 5,970,000 1,460,000 10,200,000 3,400,000 9,700,000 688,000
Lead 15 NA <1.0 17,200 16,700 ..............1,860 14,400 1,900
Manganese 800 820,000 <10 ..........101,000 587,000 3,110,000 2,470,000 214,000
Mercury 2 ND <0.5 <4 30.9 9.6 21 2.4
Molybdenum 40 52,000 14 21,300 96,200 790 56,100 2,930
Nickel 100 17,000 <20 23,800 75,800 150,000 122,000 44,900
Selenium 50 <2000 <5 3,080 6,900 2,460 7,060 .............. 1,370
Silver 100 <2500 <10 101 792 1,850 3,308 329
Thallium 2 NA <0.5 190 518 1,080 694 290
Tin 17,000 NA <100 155 325 <100 <100 <17,000
Uranium 30 118,000 3,590 180,000 458,000 835,000 1,200,000 134,000
Vanadium 60 210,000 <15 692,000 2,370,000 836,000 3,220,000 454,000
Zinc 5,000 590,000 <10 134.000 726,000 652,000 1.430,000 155.000
Volatile Organic Compounds (pg/L)
Acetone 700 28 67 37 330 64 159 >700
Benzene ....................................5 <5 <1 <1 <1 <1 <1 <5
2-Butanone (MEK)4,000 NA <20 <20 67 <20 24.5 <4,000
Carbon Tetrachloride 5 <5 <1 <1 <i <1 <1 <5
Chloroform 70 6 42 2.6 31 2 21 <70
Chloromethane 30 NA 1.4 1.8 3.5 1 2.6 <30
Dichlormethane (Methylene 5 10 <1 <1 7.4 <1...................<1
Chloride)..................................<5
Naphthalene 100 <10000 <i 2.1 1.2 <1.................. <1.....................<100
Tetrahydrofuran 46 NA <100 <10 <io <1 <1....................<46
Toluene 1,000 <5 <1 <1 <1 <1 <1 <1,000
Xylenes (total)10,000 <5 <1 <1 <1 <1 <1 <10,000
Radiologies (pCi/L)
Gross Alpha ____15|I NA 17000±60.9 4030+/-48.7 11100+/-29.1 1530+/-14.4 81900+/-122( 19700+/-168
(1|Semi Volatile Organic Compounds (pg/L)
l|Bis(2-etvlhexyl)phthalate 1 I l<10 I10.6 <10 <10 <10 |<10
llOthers
IlLabpH (S.U.)6..5-8.5 0.82 1.4 2.18 1.27 2.4 1.05 2.2
TDS (mg/L) NS 189,000 243,000 56,200 296,000 120,000 410,000 51,200
Anions (meq/L)NA 4,950 944 5,270 2,040 10,200 974
IlCations (meq/L)NA 5,730 1,050 6,280 ____1,890 _____2,840 377
General Inorganics (mg/L)
Carbonate as C03 NS NA <1 <1 <1 <1 <1 <1 II
Bicarbonate as HC03 NS <5 <1 <1 <1 <1 <1 <1
Calcium NS ...............................300 ............... 628 560 200 591 586 ...................294
Chloride NS NA 17,200 3,470 40,400 8,880 38,400 7,200
Fluoride (mg/L)4 <100 0.6 54.8 64.1 2,300 12,400 1,330
Magnesium NS 5,400 17,100 2,500 22,100 5,680 15,400 1,910
Potassium NS NA 3,820 782 2,590 1,190 2,110 386
Sodium NS......5,900 28,600 ...........5,620 ...........47,900 6,660 34,400 3,630IlSulfateNS180.000 214,000 40,400 197,000 80,000 440.000 37.000
1 Only detectable Semi Volatile Organic Compound(s) concentrations listed
2 No error term provieded
Shaded = laboratory detection limit exceeds the GWQS
NA = Not analyzed
ND = Below laboratory detection limit Note, the report did not include the detection limit
NS = No Groundwater Quality Standard
Table 4
Histone Analytical Data for Wastewater in Cell 4A
Parameter GWQS Cell 4A Cell 4A LDS
2009 2010 2011 2012 1 2013 1 2014 2009 11 2010____II 2011 ]1___ 2012 1I 2013 I 2014
Nutrients (mg/L)___
Ammonia (as N)25 3,140 5,230 4,930 1,540 1,340 2,730 4,480 2,290 3,480 1,320 1,010 2,920
Nitrate & Nitntefas N)10 28 52 44 27 38 2 39 5 69 183 94 15 29 39
Heavy Metals (ug/L)
Arsenic 50 62,600 109,000 86,600 60,500 73,700 70,000 133,000 54,000 74,700 44,100 35,700 51,200
Beryllium 4 296 215 323 167 247 190 536 295 367 180 188 185
Cadmium 5 1,920 3,670 2,190 844 1,450 1,780 4,010 2.650 3.160 921 1,170 4.720
Chromium 100 3,220 7,500 5,900 5,990 5,220 46,200 9,140 3.890 5,940 3,930 2,630 2,780
Cobalt 730 9,440 26,500 22,500 22,900 22,900 27,500 37,300 15,200 21,700 22,300 44,300 41,200
Copper 1,300 99,200 168,000 181,000 433,000 540,000 556,000 222,000 116,000 150,000 481,000 754.000 439,000
Iron 11 000 2.360,000 2.920,000 3,390.000 3.190,000 2,620,000 2,280,000 3,940,000 1.420.000 2.530.000 2.460.000 1,370.000 1.850,000
Lead 15 5,360 11.800 11,000 5,270 11,500 14,800 5,270 3.400 4.520 2.300 165 991
Manganese 800 178,000 209,000 131,000 112,000 143,000 120,000 389,000 157.000 207,000 95,200 86,300 98,600
Mercury 2 1 19 <4 152 24 08 25 266 62 14 7 07 <0 5 <0 002
Molybdenum 40 24,300 43,800 24,200 58,200 25,500 40,600 49,200 23,900 29,300 10,200 1,200 3,970
Nickel 100 17,100 40,900 43.500 41,300 43,300 54,100 43,900 23.900 29,600 35.000 54,600 99,300
Selenium 50 4,620 5,810 4,460 1,310 2,080 2,000 5,250 2,820 3,780 1,260 1,020 2,170
Silver 100 78 193 216 127 144 197 204 62 127 44 25 <100
Thallium 2 162 350 410 250 256 376 252 194 290 332 171 522
Tin 17.000 257 378 319 169 118 <17.000 504 180 119 <100 <100 <17,000
Uranium 30 118,000 217,000 153,000 91,000 112,000 159,000 284,000 145.000 168,000 90,200 75,000 8.200
Vanadium 60 918,000 1,090,000 730,000 237,000 461,000 535,000 1,150,000 518.000 770,000 240,000 157,000 510,000
Zinc 5.000 142.000 _____224,000 286,000 200.000 183 000 ________169,000 298,000 152.000 _____204000 181,000 163,000 306,000
Volatile Oraanic Compounds (gq/U
Acetone 700 60 55 100 25 28 4 >700 240 130 120 55 57 >700
Benzene 5 <1 <1 <1 <1 <1 <5 <1 <1 <1 <1 <1 <5
2-Butanone (MEK)4,000 <20 <20 <20 <20 <20 <4,000 78 50 82 36 <20 <4,000
Carbon Tetrachlonde 5 <1 <1 <1 <1 <1 <5 <1 <1 <1 <1 <1 <5
Chloroform 70 4 85 10 <1 <1 <70 23 52 26 42 110 95
Chloromethane 30 34 55 7 9 <1 <1 <30 79 13 38 6 99 <30
Dichlormethane (Methylene
Chlonde)5 <1 <1 <1 <1 <1 <5 <1 <1 <1 <1 <1 <5
Naphthalene 100 1 8 <1 <1 <1 <1 <100 <1 <1 <1 <1 24 <100
Tetrahydrofuran 46 <100 <10 <10 1 36 <1 <46 140 158 102 117 39 1 <48
Toluene 1,000 <1 <1 <1 <1 <1 <1,000 <1 <1 <1 <1 <1 <1,000
Xvlenes ftntah 10.000 <1 <1 <1 <1 <1 <10.000 <1 <1 <1 <1 <1 <10.000
Radiologies (pCi/L)
Gross Alpha I 15l8910±44 13400+/-45 II8290+/-25 2 I16300+/-66 8I15500+/-279 I240.000+/-577 1 7020±39 113230+/-43 1 I7440+/-23 8 I7440+/-23 8 I6930+/-172 161800+/-289
‘^Semi Volatile Organic Compounds (gq/U
Phenol <10 <10 <10 <10 <10 <10 33 23 5 <10 <10 <10 <10
Bisf2-etvlhexvl)Dhthalate <10 196 <10 <10 <10 <10 <10 549 <10 166 <10 <10
Others
Lab pH (S U )6 5-8 5 1 4 1 99 1 73 1 2 1 47 1 7 1 98 2 53 2 32 2 10 2 32 2 40
TDS (mg/L)NS 81,400 107,000 108,000 76,000 90,000 78,300 117,000 56,900 93,800 55,400 49,700 69,700
Anions (meq/L)1,540 2,030 5,730 1,490 1,860 1,520 2,140 1,020 1,790 904 709 1,280
Cations (meq/L)_____________1.490 2,030 2,010 1.350 653 722 2,180 1,060 1,740 934 297 530
General Inoraamcs (mq/U
Carbonate as C03 NS <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1
Bicarbonate as HC03 NS <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1
Calcium NS 627 598 598 591 668 445 558 474 470 453 429 336
Chlonde NS 4,650 7,350 5,870 4,980 4,530 5,900 7,570 4,670 6,040 2,710 1,910 4,200
Fluonde (mg/L)4 03 21 6 30 6 43 1,130 1,290 07 39 46 27 1,970 1,320
Magnesium NS 3,250 4,940 4,720 2,230 3,660 2,990 6,390 3,240 5,100 2,070 1,710 2,690
Potassium NS 980 1,440 1,450 558 773 724 1,960 934 1,500 503 305 415
Sodium NS 5,980 11,300 11,400 7,130 6,860 7,190 12,600 6,700 11,000 3,500 2,930 4,190
Sulfate NS 67,600 87.100 267,000 64,900 83.300 64.900 92,400 41.700 77,400 39.600 31,400 56,000
1 Only detectable Semi Volatile Organic Compound(s) concentrations listed
NA = Not analyzed
ND = Below laboratory detection limit Note, the report did not include the detection limit
Table 5
Historic Analytical Data for Wastewater in Cell 4B
Parameter GWQS Cell 4B Cell 4B LDS
2011 2012 2013 |2014 2011 |2012 || 2013 | 2014
Nutrients (mq/L)
Ammonia (as N)25 5,220 5,580 2,060 5,580 4,260 4,090 1,010 4,240
Nitrate & Nitrite (as N)10 39 42 51 4 47.0 30 31 28 9 43 0
Heavy Metals (ug/L)
Arsenic 50 67,400 80,000 65,400 70,400 54,200 41,200 35,700 67,800
Beryllium 4 311 356 334 275 274 271 188 282
Cadmium 5 1,990 2,540 4,900 2,290 1,670 ' ' 1,740 1,170 2,290
Chromium 100 6,860 8,280 6,390 6,940 6,250 5,930 2,630 6,160
Cobalt 730 17,800 29,300 21,300 24,600 15,600 19,000 44,300 23,300
Copper 1,300 193,000 340,000 340,000 368,000 176,000 181,000 ' 754,000 308,000
Iron 11,000 2,960,000 3,580,000 2,830,000 2,480,000 2,450,000 2,120,000 1,370,000 2,590,000
Lead 15 9,960 11,600 9,820 10,900 6,060 4,420
................165 4,120
Manganese 800 128,000 148,000 154,000 129,000 118,000 162,000 86,300 144,000
Mercury 2 13 7 26 1 5 <2 12.3 30 <0.5 <2
Molybdenum 40 21,400 27,600 26,100 29,000 16,700 15,000 1,200 24,300
Nickel 100 33,900 50,500 35,100 42,000 30,700 33,700 54,600 40,100
Selenium 50 4,670 4,470 3,900 5,010 3,710 2,880 1,020 4,080
Silver 100 137 169 137 142 111 117 24.8 119
Thallium 2 237 368 243 258 179 175 171 336
Tin 17,000 196 215 163 <17,000 332 <100 <100 <17,000
Uranium 30 133,000 171,000 110,000 133,000 111,000 132,000 75,000 143,000
Vanadium 60 660,000 783,000 163,000 666,000 518,000 428,000 157,000 671,000
Zinc 5.000 191.000 270.000 184.000 144,000 172.000 182,000 163,000 I44.OO6
Volatile Organic Compounds (pq/L)
Acetone 700 130 94 43.5 >700 390 370 57 >700
Benzene 5 <1 <1 <1 <5 <1 <1 <1 <5
2-Butanone (MEK) , .4,000 <20 <20 <20 <4,000 240 180 <20 <4,000
Carbon Tetrachlonde 5 <1 <1 <1 <5 <1 <1 <1 <5
Chloroform 70 94 4 8.1 <70 20 19 110 <70
Chloromethane 30 85 8 7.1 <30 11 11 99 <30
Dichlormethane (Methylene
Chlonde)5 <1 <1 <1 <5 <1 <1 <1 <5
Naphthalene 100 <1 <1 <1 <100 <1 <1 2.4 <100
Tetrahydrofuran 46 <10 11.1 <1 ’<46 198 322 39.1 75 6
Toluene 1,000 <1 <1 <1 <1,000 <1 <1 <1 <1,000
Xylenes (total)10.000 <1 <1 <1 <10.000 <1 <1 <1 <10,000
Radiologies (pCi/L)
Gross Alpha I 15l 8.590+/-25.6h3.600+/-73.8ll4.600+/-290l 148.000+/-446I6.000+/-21.4 I7.500+/-55.5 I6.930+/-172 |l81,000+/-499
|1,Semi Volatile Organic Compounds (pg/L)
Benzidine <10 <10 <10 26 <10 <10 <10 <10
Bis(2-etylhexyl)phthalate <10 19 <10 <10 <10 <10 <10 27
Pyndme <10 <10 <10 15 <10 <10 <10 <10
Others
Lab pH (S U.)6. 5-8.5 1.87 1 5 1.65 1 6 2 23 2.40 1.28 2.20
TDS (mg/L)NS 93,800 128,000 108,000 113,000 85,800 90,200 49,700 103,000
Anions (rr.eq/L)3,020 2,700 2,170 2,110 1,350 2,260 709 1,910
Cations (meo/L)1,810 2.280 491 758 1,500 1,520 297 760
General Inorganics (mq/L)
Carbonate as C03 NS......................<1 <1 <1 <1 <1 <1 <1 <1
Bicarbonate as HC03 NS <1 <1 <1
<1..................<1 <1 <1 <1
Calcium _______________NS ....................570 580 '"662 336 486 456 429 ..........................308
Chlonde_____________NS 8,290 8,170 4,570 7,300 3,630 6,850 1,910 6,900
Fluonde (mg/L)4 26 7 23 3 1050 1150 28 4 22.6 1,970 976
Magnesium. .....................NS 3,910 4,500 3,560 3,310 3,230 3,360 1,710 3,466
Potassium___NS 1,370 1,650 i,iio 989 i.iso 1,060 .......305 952
Sodium NS 9,050 11,700 ' '3/150 7,100 8,240 8,080 2,930 6,920
Sulfate NS 134,000 119,000 98,100 91,566 '59.966 99,l66 31,400 82,300
1 Only detectable Semi Volatile Organic Compound(s) concentrations listed.
Shaded = laboratory detection limit exceeds the GWQS
NA = Not analyzed
NO = Below laboratory detection limit. Note, the report did not include the detection limit.
Table 6
Duplicate QA/QC Samples
Contaminant
Parameters Listed in Table 2
GWCL
DWMRC Duplicate Sample Result Comparison
of Cell 2 Slimes Drain
DWMRC and EFR Split Sample Comparison of Cell
2 Simes Drain
EFR Duplicate Sample Result
Comparison of Tailing Cell 4A
Cell 2 Slimes
Drain
Cell 6 DWMRC
duplicate
sample of Cell
2 Slimes Drain
RPD EFR Cell 2
Simes
RPD comparing
DWMRC Cell 2
Slimes and EFR
Cell 2 Slimes
Drain
RPD comparing
DWMRC Cell 6 and
EFR Cell 2 Slimes
Drain
Cell 4A
Cell 65
duplicate
sample of Cell
4A
RPD
August 19, 2014 August 19, 2014
Ammonia (as N) (mg/L]25 5801 3,100 -137.0 3,500 -143.l|2,920 2780 4.9
Nitrate + Nitrite (as N) [mg/Ll 10 18,19 -5.4 35
-64.2I
__________________-JM_____________39 42.5 -8.6
Heavy Metals (pg/L)
Arsenic 50 20,000 21,000 -4.9 19,800 1.0 5.9 70,000 66,900 4.5
Beryllium 4 260 280 -7.4 197 27.6 34.8 190 188 1.1
Cadmium 5 5,500 5,900 -7.0 6,480 ___-16.4 -94 1,780 1,630 8.8
Chromium 100 2,100 2,100 0.0 1,630 25.2 25,2 4,620 4,420 4.4
Cobalt 730 44,000 47,000 -6.6 46,700 ’ -6.0 0.6 27,500 23,400 16.1
Copper 1,300 120,000 120,000 0.0 126,000 -4.9 -4.9 556,000 491,000 12.4
11,000 3,100,000 3,000,000 3.3 2,180,000 348 31.7 2,280,000 2,280,000 0.0
Lead 15 530 560 -5.5 638 -18 5 -13.0 14,800 12,300 18 5
Manganese 800 130,000 130,000 0.0 98,000 28.1 28.1 120,000 115,000 4.3
Mercury 2 <0.027 <0.027 NC <2 NC NC 2.5 <2 NC
Molybdenum 40 3,300 3,500 -5.9 4,250 -25.2 -19.4 40,600 34,800 15.4
Nickel 100 120,000 120,000 0.0 127,000 -5.7 -5.7 54,100 48,200 11 5
Selenium 50 590 600 -1.7 1,020 -53 4 -51.9 2,000 2,240 -11.3
Silver 100 6.9 7 -2.9 <100 NC NC 197 222.0 NC
Thallium 2 280 290 -3.5 402 -35.8 -32.4 376 377 -0.3
Tin 17,000 <0.80 <.80 NC <17,000 NC NC <17,000 <17,000 NC
Uranium 30 23,000 24,000 -4.3 26,400 -13.8 -9.5 159,000 124,000 24 7
Vanadium 60 520,000 580,000 -109 497,000 4.5 15.4 535,000 491,000 8.6
Zinc 5,000 840,000 940,000 -11.2 405,000 69.9 796 169,000 137,000 20.9
Radiologies (pCi/L)
'Gross Alpha 15I8390+/-289 19230+/-327 1.9I6.890+/-98.1 I 4.9:6.9I240.000+/-577 I166,000+/-421 104
Semi Volatile Organic Compounds (only detected concentrations listed)
1,4-Dioxane 41 36 13.0 NA NC NC All Semi Volatiles below detection limits
1 -Methylnaphthalane 16 15 6.5 11 37.0 308
2-Methylnaphthalene 15 14 69 11 30.8 24.0
Acenaphthene 1.3 <0.26 NC <10 NC NC
Benzoic acid 110 99 10.5 NA NC NC
Bis(2-ethylhexyl) phthalate___2.0 2.4 -182 <10 NC NC
Diethyl phthalate 22 <0.2 NC <10 NC NC
Dimethyl phthalate <0.2 1.8 NC <10 NC NC
Phenol 3.3 3.1 6.2 <10 NC NC
1-r-Biphenyl 2.8 2.6 7.4 NA NC NC
VOC (ug/L)
Acetone 700 460 510 -10.3 >700 NC NC >700 >700 NC
Benzene 5 <0.64 <0.64 NC <5 NC NC <5 <5 NC
2-Butanone (MEK)4,000 79 87 -9.6 <4,000 NC NC <4,000 <4,000 NC
Carbon Tetrachloride 5 <0.76 <0.76 NC <5 NC NC <5 <5 NC
Chloroform 70 16 16 0.0 <70 NC NC 95 <70 NC
Chloromethane 30 1.8 2.0 -10.5 <30 NC NC <30 <30 NC
Dichloromethane (Methylene Chloride)5 3.6 4.1 -13.0 <5 NC NC <5 <5 NC
Naphthalene 100 11 13 -16.7 <100 NC NC <100 <100 NC
Tetrahydrofuran (THF)46 <8.1 <801 NC <46 NC NC <46 <46 NC
Toluene 1,000 8.1 3.6 769 <1,000 NC NC <1,000 <1,000 NC
Xylenes (total)10,000 1.6 1.2 28.6 <10,000 NC NC <10,000 <10,000 NC
Others
Field pH (S.U.)6.5-85 3.08 3.04 1.31 3.1 -0.6 -23)1.7 1.7 0.0
Fluoride (mg/L)4 7.9 10 -23.5 130 -177.1 -171.4 1.290 1,290 0.0
Chloride (mg/L)NG 4,000 4,100 -2.5 3,720 7.3 9.7 5,900 5,800 1.7
Sulfate (mg/L)NG 60,000 59,000 1.7 62,200 -3.6 -5.3 64,900 65,300 -0.6
IDS (mg/L)NG 92,000 92,000 0.0 74,900 20.5 20.5 78,300 83,700 -6.7
General Inorganics Listed in Part I.E.1.c)(2)(ii)
Sodium (mg/L)NG 4,100 4,000 2.5 3,130 26.8 24.4 7,190 6,380 11.9
Potassium (mg/L)NG 620 610 1.6 489 23.6 22.0 724 644 11.7
Magnesium (mg/L)NG 3,400 3,300 3.0 2,780 20.1 17.1 2,990 2,890 3.4
NG 450 2.2 322 35.3 332l 445 406 9.2
NA = Not Analyzed RPD exceeding 20% for ES their duplicate samples
NG = No GWCL RPD exceeding 30% for DRC comparing their duplicate sample with ES sample
RPD = Relative Percent Difference 1. Non-comformance exists when the RER 2: 2
NC = RPD no calculated because one or more of the concentration were below laboratory detiction limits
Radiologies Comparison for Gross Alpha (pCi/L)
Sample Result Arror Term "'RER
Cell 2 slimes drain 8390 289 1.92
Cell 6 9230 327
Cell 4a 240,000 577 103.6
cell 65 166,000 421
Cell 2 slimes drain 8390 289 4.9
EFR Cell slimes drain 6,890 98
Cell 6 9230 327 6.9
EFR Cell slimes drain 6,890 98
* Duplicate sample of C4A
1. Non-comformance exists when the RER 2 2
RER = Replicate error ratio
Note: the formula in section 9.1.4(a) of the QAP to calculate RER is the following: |A-B|/(sa2+sb2)%
A = the origional sample
B = the duplicate sample
sa = arror term of the origional sample
sb = arror term of the duplicate sample
|A-B|sa2 sb2 (sa2+sb2)SQRT(sa2+sb2)IA-B |/SQ RT (sa2+sb2)
840 83521 106929 190,450 436 41 1.92
74000 332929 177241 510,170.00 714.26 103.60
1500 83521 9623.61 93,144.61 305.20 4.91
2340 106929 9623.61 116,552.61 341.40 6.85