2023-04-26_HYDROLOGY - M2007044

• Permit No: M2007044
• IBM Index Class Name: Hydrology
• Doc Date: 4/26/2023
• Doc Name: Hydrology Report
• From: Energy Fuels Resources Inc
• To: DRMS
• Annual Report Year: 2023
• Report Quarter_Month: 1
• Email Name: ACY
• Email Name: THM
• Media Type: D
• Archive: No

Table 2 PR Spring
' Metals(mg/L)(1)(continued) Radionuclides(pCi/L)(i)
Sample Information ■ Cd Cr Cu Fe Pb Mn Hg Mo Ni Se Ag TI U V Zn U Gross Gross Ra 226 Ra-228 Ra-228
alpha Beta Ra-228
PR Spring(aka. Pack Rat Spring,
Lower Spring)-Salt Wash
Pack Rat Spring, Umetco, 3/21/1980 0.23 152
' Packrat Sp., BLM, 7/7/93 018 00004 0.001 <0 001 0.10 <0.001 0 005 <0 00001 0 120 <0.001 <0 0001 1.80 <0 001 1220 237 210 7.4
DP-93-6, Peel, 9/9/93 <0 005 <0.01 <0 01 <0.02 <0.01 <0.0002 0.309 1.68 <0 005 1140 54
Pack Rat Spring, Umetco, 6/26/96 1.70 <0 025 1200 37 <0.1 <3.8
PRSPRING,WWE, 7/15/97 0.1 0.003 <0 05 <0.01 <0 10 <0 002 <0.05 <0.0002 <0.05 0 193 <0.05 1.60 0.34 <0.025 1100 11660 353 3 08 3.8
PRSPRING,WWE, 10/26/97 <0.1 <0 005 <0 01 <0.01 <0.055 <0 0045 <0 005 <0 0002 <0.04 0 217 <0.01 1.60 ; 0.34 <0 01 1100 1,290 206 3 0.3 3.3
Pack Rat Spring,Umetco 6/1/99 0 187 1.40 <0.025 950 3.3 03 36
Pack Rat Spring,Umetco 5/24/00 0.12 <0 001 <0.01 <0.01 111 <0.01 <0.05 0.0078 <0 0002 <0.04 0.21 <0.01 1.50 0.32 0.030 1000 1,300 180 40 <0 025 40
Lower Spring, EFRC, 10/24/06 <0.01 <0.01 <0.03 <0.05 <0.01 0.10 10.05 0 160 1.61 0.30 0.01 1090 1 3.6
LS Tank, EFRC, 1/17/07 0.1 <0 01 <0 05 <0.01 <0.03 <0 05 <0.01 <0 001 0.10 <0.05 0202 <0.01 <0.1 1.15 0.30 <0.01 779 869 219 3.9 1.7 5.6
PS Spring , EFRC,4/27/07 01 <0 01 <0 05 <0.01 <0.03 <0 05 <0.01 <0.001 0.10 <0.05 0 168 <0.01 I <0 001 1.40 0.30 <0 01 948 804 9.2 <1.0 <10.2
PR Springs, EFRC, 3/10/08 0.1 <0 01 <0 05 <0 05 <0 01 0.10 <0.05 0 183 1.50 0.30 <0 01 1020 3.5 I <1.6 <5.1
PR Springs, EFRC, 6/19/08 0.1 <0 01 <0 05 <0 05 <0 01 0.10 <0.05 0203 1.53 0.30 <0 01 1040 34 <1.2 <4 6
PR Springs, EFRC, 9/8/08* 0.2 <0.01 <0.05 <0.05 <0.01 0.10 <0.05 0.243 1.26 0.40 <0 01 853 2.8 <1.3 <4 1
PR Springs, EFRC, 12/15/08 0.1 <0 01 <0 05 <0 05 <0 01 010 <0.05 0 184 1.50 0.30 <0.01 1020 3.8 2.2 6
PR Springs, EFRC, 2/10/09 <0 1 <0.01 <0.05 <0 05 <0.01 0.10 <0.05 0 189 1.58 0.40 <0.01 1070 3.6 <0.3 <4 9
PR Springs, EFRC,4/20/09 <0 1 <0 01 <0 05 <0.05 <0 01 010 <0.05 0.186 1.45 0.30 <0 01 982 3.9 <1.1 <5
PR Springs , EFRC, 6/2/10 0.1 <0.01 <0.05 <0.05 <0.01 0,10 <0.05 0.175 1.50 0.40 <0.01 1020 37 <1.2 <4 9
PR Springs, EFRC, 5/24/11 <0 1 <0 01 <0 05 <0 05 <0.01 0.10 <0.05 0.179 1.38 0.30 <0 01 934 43 <1.4 <5.7
PR Spring, EFRC, 5/30/12 <0.1 <0.01 <0.05 <0 05 <0.01 0.10 <0.05 0 178 1.42 0.30 <0.01 961 3.8 <.73 <4.5
PR Spring, EFRC, 6/4/13 0.1 <0 01 <0.05 <0.05 <0 01 <0.1 <0.05 0.156 1.42 0.30 <0 01 961 1 4.2 <0.77 <4 97
PR Spring, EFRC, 6/17/14 0.1 <0.01 <0.05 <0.05 <0.01 <0.1 <0.05 0.156 i 1.26 0.30 <0.01 853 4.3 <0.1 <4.4
PR Spring, EFRI, 8/5/15 0.1 <0 01 <0.05 <0 05 <0 01 0.10 <0.05 0 162 1.32 0.30 <0 01 894 3.4 1.3 4.7
PR Spring, EFRI, 6/1/16 01 <0 01 <0.05 <0 05 <0 01 0.10 <0.05 0 172 1.22 1 0.30 <0.01 826 4.4 <1.6 <6.0
PR Spring, EFRI, 6/7/17 <0.1 <0 01 <0.05 <0.05 <0.01 <0.1 <0.05 0.128 1.06 i 0.20 <0.01 718 4.2 0 5 4.7
PR Spring, EFRI,6/20/18 0.1 <0 01 <0.05 <0.05 <0 01 <0.1 <0 05 0.133 0.94 0.20 <0.01 636 4.2 <1.5 <5.7
PR Spring, EFRI,6/25/19 0.1 <0 01 <0.05 <0.05 <0.01 <0.1 <0.05 0.117 1.07 0.20 <0.01 724 j 5.20 1 9 7
PR Spring, EFRI, 6/24/20 0.1 <0.001 <0.005 <0.001 <0.001 0.088 <0 005 0 124 1.01 0.23 <0 01 684 3.0 <0.7 <3.7
PR Spring, EFRI, 7/13/21 0.1 <0.001 <0.005 <0.001 <0.001 0.091 <0.005 0.131 1.06 0.24 <0.01 718 4.0 <1.1 <5 1
PR Spring, EFRI, 8/1/22 0.11 <0.001 <0.005 <0.001 <0.001 1 0.091 <0.005 0.14 1.13 0.28 <0 01 765 7.1 <2.1 <9.2
PR Spring, EFRI, 11/16/22 0.11 <0.001 <0.005 <0.001 <0.001 0 103 <0 005 0 128 1.00 0.27 <0 01 677 35 <1 <4.5
Colorado Water Standards
Ground Water, Domestic 0.005 0.1 1 0.3 0.05 0.05 0.002 0 035 0.1 0.05 0.05 0.002 0.03 5 20 15 a 5 c 5 c 5
Ground Water,Agriculture 075 0.01 0.1 0.2 5 01 02 0.01 0.2 0.02 01 2 b
Surface Water, Stream e, 0.75 dis 0.010 0.100 0.200 0 3 dis 0.100 0.200 0200 0.200 d 2 5 c 5 c 5
Surface Water, Domestic 0.005 0.05 1.0 0.3 0.05 0.05 0.002 0.1 0.05 0.1 0.0005 0.03 5 20 5(c) 5 c 5
Surface Water,Agriculture 0.75 0.01 0.1 02 01 0.2 02 002 2
EPA Water Standards(h)
Maximum 4 10 10 dis,
30 tot
Average 2 05 3 dis,
10 tot
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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