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2023-02-17_HYDROLOGY - M2007044
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2023-02-17_HYDROLOGY - M2007044
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Last modified
2/21/2023 8:36:56 PM
Creation date
2/21/2023 8:39:56 AM
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Template:
DRMS Permit Index
Permit No
M2007044
IBM Index Class Name
Hydrology
Doc Date
2/17/2023
Doc Name
Water Monitoring - Groundwater
From
Energy Fuels Resources Inc.
To
DRMS
Email Name
ACY
THM
Media Type
D
Archive
No
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Whirlwind Mine Groundwater Characterization Report <br /> exceeded 5 pCi/L in seven of nine samples and the combined Radium-226/Radium-228 <br /> standard was exceeded in four of five results. <br /> The data from 2009 to present, as collected by EFR, shows similar exceedances of <br /> groundwater standards. EFR has collected samples annually at Rajah 49; a total of 13 samples <br /> have been collected and analyzed from 2009 through 2021. The arsenic domestic use standard <br /> (0.01 mg/L)was exceeded for all samples with concentrations ranging from 1.39 to 2.54 mg/L. <br /> The selenium agricultural use standard (0.02 mg/L)was exceeded for all samples with <br /> concentrations ranging from 0.142 to 0.266 mg/L. The uranium domestic use standard <br /> (0.03 mg/L)was exceeded for all samples with concentrations ranging from 1.68 to 2.43 mg/L. <br /> The vanadium agriculture use standard (0.1 mg/L)was exceeded for all samples with <br /> concentrations ranging from 0.30 to 0.50 mg/L. The radium-226 concentration for all samples <br /> was greater than 5 pCi/L and therefore the combined radium-226/radium-228 activities <br /> exceeded the 5 pCi/L domestic standard. <br /> 5.2.4 Other Water Types <br /> There are several water samples shown in Figure 8 that exhibit unique chemistry. These include <br /> samples BM00-1 (1), Willow Spring, Lumsden Spring, and Lumsden Canyon Mouth. The <br /> BM00-1 (1) and Willow Spring sources have water chemistries that generally fall between those <br /> of the Burro Canyon and Brushy Basin source waters. <br /> Willow Spring, which is located southeast of Beaver Mesa in John Brown Canyon, has similar <br /> ion chemistry to the Cherokee Wells and appears to originate from the lower Burro Canyon and <br /> Upper Brushy Basin contact zone. The analytical results for Willow Spring do not show any <br /> exceedances of state water quality standards. <br /> Samples collected by EFR showed that one sample collected in 2007 at"Lumsden Spring" <br /> (formed by DP Spring water entering the channel) exceeded selenium and uranium domestic <br /> groundwater standards. This sample has been plotted on Figure 8 which indicates a calcium- <br /> magnesium bicarbonate-sulfate type water. Selenium concentrations exceeded the agricultural <br /> standard of 0.02 mg/L with a concentration of 0.086 mg/L. The uranium concentration was <br /> 0.216 mg/L, greater than the standard of 0.03 mg/L. <br /> Western Water& Land, Inc. 33 <br />
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