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2021-02-01_REPORT - C1982057
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2021-02-01_REPORT - C1982057
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Last modified
5/7/2021 6:03:44 AM
Creation date
5/7/2021 5:53:07 AM
Metadata
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Template:
DRMS Permit Index
Permit No
C1982057
IBM Index Class Name
Report
Doc Date
2/1/2021
Doc Name Note
2020 Annual Hydrology Report
Doc Name
Annual Hydrology Report
From
Seneca Coal Company
To
DRMS
Annual Report Year
2020
Permit Index Doc Type
Hydrology Report
Email Name
RAR
JLE
Media Type
D
Archive
No
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collect a representative sample from diffuse flow without disturbing, and <br /> inadvertently collecting, sediments and organic matter that can produce false <br /> positive metal results. Water from non-flowing, pooled spring water, should also not <br /> be collected as stagnant water is often heavily influenced by bacteria and low oxygen <br /> conditions that alter the water chemistry. In 2020 none of the native springs had a <br /> measured flow above 5 gpm however water quality samples were inadvertently <br /> collected from all four locations. Although these results should be considered <br /> unrepresentative, all the spring samples were compared to the Agricultural Use water <br /> quality standards for discussion purposes. None of the Agricultural Use surface water <br /> quality standards were exceeded at the springs. The 0.2 mg/L Manganese Agricultural <br /> Use Standard is only applicable when irrigation water is applied to acidic soils (<6.0 <br /> pH). For alkaline soils, as are found in the SIIW area, a more appropriate standard <br /> would be 10 mg/L (EPA, 1976). Therefore, none of the manganese results above 0.2 <br /> mg/L were considered exceedances of the standard. <br /> Page 16 of 17 <br />
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