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2020-01-30_REPORT - C1982056
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2020-01-30_REPORT - C1982056
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Last modified
12/27/2024 5:00:43 PM
Creation date
2/3/2020 10:01:24 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1982056
IBM Index Class Name
Report
Doc Date
1/30/2020
Doc Name
Annual Hydrology Report Adequacy Review
From
DRMS
To
Twentymile Coal, LLC
Annual Report Year
2018
Email Name
TNL
JDM
Media Type
D
Archive
No
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Site 7 <br /> • Site was reported to have not discharged during the 1" <br /> and 211 quarter. <br /> 303 spring series <br /> • Reported to be dry in 2018 <br /> Mine Discharge <br /> Site 109 did not discharge in 2018. <br /> Site 115 discharged in May and June 2018 <br /> Each surface water monitoring site was evaluated to determine if <br /> the required parameters were sampled in accordance with the <br /> water monitoring plan from Exhibit 14 of the permit. Each <br /> parameter measurement reported was compared to the range <br /> (maximum,minimum and average)of parameters listed for each <br /> monitoring site. The parameters measured were also compared to <br /> the instream numeric standards for the Yampa River Basin (Region <br /> 12)discussed in item no. 9 above. If a measurement was outside <br /> of its normal range or above a numeric standard it is discussed <br /> below. <br /> Foidel Creek <br /> Site 800: reported max value of Sulfates(2530 mg/L) 8/15/2019. <br /> Field Conductivity appears to be trending up at this site. <br /> Site 8: reported the maximum Field Conductivity(5350 umhos/cm) <br /> Field Conductivity appears to be trending up at this site. <br /> 12. Parameters to be Exhibit 14 ofCDRMS mining Site 900: In March Iron(Trec) exceeded the Water Quality <br /> sampled at surface water permit C-1982-056 Standards for Segment 13b of the Yampa River Basin (3270 ug/L). <br /> sites However,Site 14, upstream of the mine reported iron level in <br /> exceedance of the standard in March of 2018. <br /> Fish Creek <br /> Site 16A: Iron(Trec)was above the table standard in March 2018 <br /> (1760 ug/L). The level is below the maximum level recorded at the <br /> site. Upstream of Fish Creek Borehole. <br /> Site 27A: Iron(Trec)was above the table standard from the March <br /> and April (1350 and 7770 ug/L). The level is below the maximum <br /> level recorded at the site. Upstream of Fish Creek discharge. <br /> Site 1003: Iron(Trec)was above the table standard in April 2018 <br /> (8340 ug/L). The level is below the maximum level recorded at the <br /> site. Downstream of discharge. <br /> Middle Creek <br /> Site 29: Iron(Trec)was above the table standard in April (3050 <br /> ug/L)and September(1320 ug/L)2018. <br /> 5 <br />
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