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REP13265
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REP13265
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Entry Properties
Last modified
8/24/2016 11:43:38 PM
Creation date
11/27/2007 1:09:49 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981044
IBM Index Class Name
Report
Doc Date
7/29/2002
Doc Name
2001 AHR Review Memo
From
TAK
To
JHB
Annual Report Year
2001
Permit Index Doc Type
Hydrology Report
Media Type
D
Archive
No
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Complied with? Comment <br /> (yes / no) <br /> The Eagle Mines are on Segment 13b of the Lower <br /> Yampa/Green River Sub-basin of the Lower <br /> Colorado River Basin. CWQCC lists numeric <br /> standards for Segment 13b in its regulation 3.7.0. <br /> The perminee monitors water in the Williams Fork <br /> River at a site upstream from Eagle's mining (WF- <br /> 1), and a site downstream from mining (WF-2). <br /> Data from the upstream site indicate the Williams <br /> Fork River naturally exceeds the iron numeric <br /> yes standard frequently, and the lead and manganese <br /> standards occasionally. Comparison of the <br /> upstream and downstream data indicate mining <br /> and reclamation operations at the Eagle Mines do <br /> not cause the numeric standards to be exceeded. <br /> NPDES monitoring of mine pumping at outfalls <br /> 024 and 003 shows the quality and quantity of the <br /> pumped water would not cause an exceedance of <br /> Williams Fork River instream standards. <br /> Eagle 5 and 9 aze not subject to the <br /> Antidegradation Rule because the receiving waters <br /> yes (Segment 13b of [he Lower Yampa/Green River <br /> Sub-basin of the Lower Colorado River Basin) are <br /> desi nated "Use-Protected". <br /> yes <br />~irouna warer 41.~.G6 <br />L. Sampling Exhibit 29 of <br /> <br />frequency at CDMG <br />Monitoring missed in 4'" quarter 2001 was <br />surface water mining no addressed in NOV CV2002-003. <br /> permit C-81- <br />monitoring sites 044 <br />M. Parameters to be Exhibit 29 of <br />sampled at CDMG <br />surface water mining yes <br /> permit C-81- <br />sites 044 <br />Prevention of <br />N Surface water features in the permit area are the <br />. <br />impacts to surface Williams Fork and Yampa Rivers. The postmining <br />water that CDMG land uses of rangeland/wildlife, pastureland, and <br />adversely impact regulation yes cropland can be expected to use water for watering <br />the postmining 4.05.1(2} of wildlife and livestock. Mining and reclamation <br />land use within operations at the Eagle Mines have not impaired <br />the permit area <br />surface water for these uses. <br />O. Sampling Exhibit 29 of <br />frequency of CDMG Frequency missed along with surface monitoring, <br />ground water mining no as noted in item L above. <br />monitoring wells Permit C-81- <br /> 044 <br />Page 2 <br />
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