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REP17383
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Entry Properties
Last modified
8/24/2016 11:46:28 PM
Creation date
11/27/2007 2:06:43 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981014
IBM Index Class Name
Report
Doc Date
4/7/2005
Doc Name
2004 Annual Hydrology Report
From
Northwest Colorado Consultants Inc
To
DMG
Annual Report Year
2004
Permit Index Doc Type
Hydrology Report
Media Type
D
Archive
No
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Energy Fuels Coal, Inc. Southfield Mine - 2004 Annual Hydrology Report Apri15, 2005 <br />than the historical average values; <br />A comparison of the up stream and the down stream historic average water quality monitoring <br />results was made for Oak Creek to determine potential impacts due to the mining activities. The <br />most significant differences between up stream and down stream monitoring stations are those <br />parameters that increase down stream, potentially due to mining activities. The parameters at the <br />down stream site that have possibly significantly higher historic averages than at the up stream site <br />include total suspended solids, aluminum, copper, iron, manganese, and zinc. Again, note that <br />occasional high values can bias the average making comparisons difficult without more <br />sophisticated statistical analysis. <br />TABLE 10 <br />NEWLIN CREEK (UP STREAM) WATER QUALITY DATA <br />Monitorin Polnt NC-2 <br /> <br />Parameter <br />Units 2004 Sample Date: <br />04/13/04 '12107104 2004 <br />Average 1997 - 2004 <br />Min. Ave. Max. <br />pH (field) units 8.6 No flow 8.6 7.5 7.9 8.6 <br />Conductivity (field) umhos/cm 190.6 190.6 73.0 146.8 321.0 <br />Temperature (feld) deg C 6.1 6.1 3.4 6.7 13.3 <br />Solids, total suspended mg/I 0.0 0.0 0.0 2.0 6.0 <br />Solids, total dissolved mgll 130.0 130.0 80.0 118.3 170.0 <br />Oil and Grease (visual) yes/no no no n/a n/a n/a <br />SAR in water mg/I 0.3 0.3 0.0 0.21 0.28 <br />Bicarbonate as CaCO3 mg/l 77.0 77.0 53.0 72.2 123.0 <br />Calcium, t rec mg/I 22.9 22.9 14.7 21.1 37.0 <br />Chloride mg/I 2.0 2.0 0.0 1.2 2.0 <br />Magnesium, t rec mg/I 6.5 6.5 4.1 5.7 8.5 <br />Nitrogen, nitrate/nitrite mg/I 0.04 0.04 0.00 0.04 0.13 <br />Selenium, t rec mg/I 0.000 0.000 0.000 0.000 0.000 <br />Phosphorus, ortho diss mg/I 0.03 0.03 0.01 0.03 0.08 <br />Sodium, t rec mg/I 5.6 5.6 3.7 4.9 6.8 <br />Sulfate mg/I 20.0 20.0 0.0 20.0 40.0 <br />Aluminum, t rec mg/I 0.09 0.09 O.OD 0.78 1.47 <br />Arsenic, t rec mg/I 0.0003 0.0003 0.0000 0.0006 0.0020 <br />Cadmium, t rec mg/I 0.00 0.00 0.000 0.000 0.000 <br />Copper, t rec mg/I 0.00 0.00 0.000 0.000 0.000 <br />Iron, t rec mg/I 0.12 0.12 0.120 0.790 1.190 <br />Lead, r rec mg/I 0.00 0.00 0.000 0.000 0.000 <br />Manganese, t rec mgll 0.00 0.00 0.000 0.059 0.320 <br />Mercury, t rec mg/I 0.00 0.00 0.000 0.000 0.000 <br />Molybdenum, t rec mg/I 0.00 0.00 0.000 0.000 0.000 <br />Zinc, r rec mg/I 0.01 0.01 0.000 0.010 0.300 <br />NOTES: <br />-Zero data values =parameter was analyzed for but not detected. <br />- Blank data felds = no data. - t rec =total recoverable <br />6417/2004 annualhydrpLdoc NWCC INC. Page 26 <br />
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