2023-10-31_HYDROLOGY - M2007044

• Permit No: M2007044
• IBM Index Class Name: Hydrology
• Doc Date: 10/31/2023
• Doc Name: Hydrology Report
• From: Energy Fuels Resources Inc
• To: DRMS
• Annual Report Year: 2023
• Report Quarter_Month: 3
• Email Name: ACY
• Email Name: THM
• Media Type: D
• Archive: No

Table 2 PR Spring
General Parameters Major Ions(mg/L) Metals(mg/L)(I)
Sample Information Flow TSS TDS pH Hard Alk Cond Na Ca Mg K CI F NO, P HCO, SO4 Al Sb As Ba Be
(gpm) (mg/L) (mg/L) (s.u.) (mg/L) (mg/L) (pS/cm)
PR Spring(aka. Pack Rat Spring,Lower Spring)-Salt Wash
Pack Rat Spring, Umetco, 3/21/1980 - 630 7.6 135 23.6 28.2 22 327 109
Packrat Sp, BLM, 7/7/93 6 830 7.8 258 328 980 138 47 34 6.6 9 0.49 1.39 0.03 397 195 0.210 0.06
DP-93-6, Peel, 9/9/93 - 552 7.87 158 36.5 22.5 6.2 28 292 162 0.281
Pack Rat Spring, Umetco, 6/26/96 9 0 795 600 0.42
PRSPRING,WWE, 7/15/97 6.3 <10 528 7.99 308 1 168 26 15.5 <5 23 08 1 308 125 1 <0.1 1 0.379 005 1 <0 05
PRSPRING,WWE, 10/26/97 79 <10 492 311 148 236 14 6 23 08 311 126 <0.05 0.411 003 <0.002
Pack Rat S rin ,Umetco 6/1/99 5.3 14 509 7.47 894 133 26.4 15 5 24 306 120 0.382
Pack Rat Spring,Umetco 5/24/00 - <10 460 8.24 310 160 26 15 <5 22 310 110 <0.05 0.46 0 033 <0 002
Lower Spring, EFRC, 10/24/06 - 538 8.20 312 163 24.8 15.9 55 21 06 0.4 110 <0.1 0.369 <0 1
LS Tank, EFRC, 1/17/07 - <1.0 500 8.36 126 315 1 847 160 246 1 15.6 55 22 0.4 0.4 <0.1 384 120 1 <0 1 <0.05 0.394 <0.1 <0 1
PS Spring , EFRC,4/27/07 4.3 <1 0 540 8.38 108 318 147 21.5 13.2 52 22 0.6 0.4 <0.1 379 116 <0.1 00007 0.357 <0.1 <0 01
PR Springs, EFRC, 3/10/08 425 <1 537 8.18 324 162 21.1 134 5.6 21 0.4 0.4 0.037 395 121 0.388 <0.1 <0.01
PR Springs, EFRC, 6/19/08 4.7 <1 553 8.25 300 762 172 24 15 6 25 0.4 0.4 0.02 366 122 0.413 <0.1 <0 01
PR Springs, EFRC, 9/8/08* 41 <1 534 8.36 303 883 173 23 15 5 23 04 05 0.02 370 125 0.510 <0 1 <0.01
PR Springs, EFRC, 12/15/08 45 8 572 831 311 790 171 24 15 5 20 0.4 04 001 359 123 0.394 <0.1 <0.01
PR Springs, EFRC, 2/10/09 4.5 <1 518 668 310 923 152 22 14 4 20 04 04 0.01 378 120 0.400 <0 1 <0.01
PR Springs, EFRC, 4/20/09 45 <4 542 8.24 325 898 150 22 14 5 18 0.5 <0.1 <0 01 387 122 0.384 <0.1 <0.01
PR Springs , EFRC, 6/2/10 23 <4 544 852 331 880 165 23 14 6 21 04 04 0.025 384 1 123 0.406 <0 1 <0.01
PR Springs, EFRC, 5/24/11 4.8 <4 523 860 322 858 166 25 14 6 22 04 0.4 0.025 393 116 1 0.425 <0 1 <0 01
PR Spring, EFRC, 5/30/12 45 <4 560 8.31 319 901 151 27 1 17 5 21 04 0.3 0.016 371 136 0.377 <0.1 <0.01
PR Spring, EFRC, 6/4/13 3.9 <10 535 8.19 326 844 164 25 15 6 20 0.4 0.3 0 011 394 109 0,367 <0.1 <0 01
PR Spring, EFRC, 6/17/14 2 <10 521 8.12 324 878 147 28 14 5 22 0.4 0.3 0.038 391 108 1 0.324 <0.1 <0.01
PR Spring, EFRI, 8/5/15 1 <10 539 7.61 327 922 155 27 14 5 21 0.4 02 0 010 386 110 0.373 <0 1 <0.01
PR Spring, EFRI, 6/1/16 06 <10 535 8.32 333 1 867 157 25 14 5 20 0.3 0.2 0.013 384 100 0.310 <0.1 <0.01
PR Spring, EFRI, 6/7/17 1 1 2 476 809 302 803 121 40 17 5 23 1 0.4 0.28 001 365 103 0.243 <0 1 <0.01
PR Spring, EFRI, 6/20/18 5 <1 520 8.10 307 613 142 33 1 16 5 22 04 0.28 0.016 375 101 0.313 <0.1 <0.01
PR Spring, EFRI, 6/25/19 6.5 <1 489 803 306 785 118 40 16 5 22 04 025 0.012 360 98 1 0.242 <0.1 <0 01
PR Spring, EFRI, 6/24/20 4.5 <1 506 8.15 314 754 128 34 15 5 20 04 0.26 1 0.015 382 100 0.306 <0.05 <0.001
PR Spring, EFRI, 7/13/21 5 <1 517 810 310 1 819 136 31 14 5 20 04 025 0.078 1 379 103 0.322 <0 05 <0 001
PR Spring, EFRI, 8/1/22 5 <1 525 8.20 317 827.6 147 29 14 5 19 04 0.25 0.021 387 102 0.359 <0.05 <0.001
PR Spring, EFRI, 11/16/22 413 <2 534 8.30 322 888.4 150 26 13 5 20 04 025 0.014 391 109 0.338 <0.05 <0.001
PR Spring, EFRI, 5/10/23 5.5 <2 501 8.20 308 490 120 42 17 5 22 0.4 022 0 011 376 97 0.230 <0.05 1 <0.001
PR Spring, EFRI, 7/25/23 55 <2 529 8.10 320 9899 151 33 15 5 19 0.4 0.25 0.011 390 99 0.327 <0 05 <0.001
Colorado Water Standards
Ground Water, Domestic 6.5 to 8 5 250 4.0 100 250 0 006 001 2.0 0.004
Ground Water,Agriculture 6.5 to 8 5 2 100 5 01 0.1
Surface Water, Stream e, 6.5 to 9 0 250 .0100 0.100
Surface Water, Domestic 5.0 to 9 0 250 20 10.0 250 0 1 1 0 0.004
Surface Water,Agriculture 100 0.1 0.1
EPA Water Standards h
Maximum 30 6.0 to 9.0
Average 20 6.0 to 9.0
Notes:
1.Water standards are provided for reference only. These standards do not apply to the spring water unless it is used for drinking water, irrigation, or other regulated uses.
2 Concentrations or activity levels above a state or federal standard are shaded for reference purposes Shading indicates that the measured level is elevated compared to cetain standards of water use
3 Metal and radionuclide levels are reported as total recoverable.
* Nitrate sample recollected on 9/18/08 due to hold time exceedance on 9/8/08 sample
Table 2 Water Quality Data
PR Spring
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