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REP42038
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Entry Properties
Last modified
8/25/2016 12:43:51 AM
Creation date
11/27/2007 9:11:00 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980006
IBM Index Class Name
Report
Doc Date
1/11/1993
Doc Name
1992 ANNUAL HYDROLOGY REPORT 1 OF 2 COLO PN C-08-006
Annual Report Year
1992
Permit Index Doc Type
HYDROLOGY REPORT
Media Type
D
Archive
No
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<br />A /aruuny 1993 Km Caa! Company • 1992 Annual Hydrology Report • 11 <br />' 6.0 MINE AREA SURFACE WATER <br />There was a moderate amount of runoff generated by snowmelt and/or rainfall at the Kerr Mine <br />during the 1992 Water Year. Three Surface Water Discharge Points, site 304 (Pond D), site 305 <br />(Pond E) and site 321 (Pond F) experienced dischazge during the spring of 1992. Sampling wu <br />performed weekly and all samples collected were analyud for the constituents required by <br />CDPS Permit No. G850021 and the approved Monitoring Plan. Table 6, 1992 Surface Water <br />Statistic -Sediment Ponds, presents a summary of the data. <br />' As shown on Table 6, 1992 Surface Water Statistic -Sediment Ponds, sites 304, 305 and 321 <br />experienced TSS values that exceed CDPS Permit No: COG850021 limits. Kerr Coal Company <br />hu been investigating the situation but hu not determined cause of the exceedences. <br />' Correspondence between Kerr, the Colorado Department of Health and the Mined land <br />Reclamation Division is attached in Exhibit G, CDPS Permit No: COG850021 Correspondence. <br />' Surface Water Monitoring Sta[ions 300, 306, and 327 experienced flow during the spring runoff <br />from snowmelt u shown on Table 7, 1992 Surface Water Sta[istics -Selected Surface Sites. Some <br />water was collected in ntmps in Pit 1 (site 328) during the 1992 Water Year. The majority of <br />the water was a result of snowmel[ and precipitation. The surface water sites were sampled on <br />a weekly basis during Mazch through June and monthly thereafter. All samples were analyud <br />for constituents outlined in the Monitoring Plan. <br />The field data collected are presented in Exhibit A, 1992 Field Data and the results of the <br />laboratory analyses are presented in Exhibit F, 1992 Mine Area Surface Water Quality Analyses. <br />' Seasonal variations in flow and water chemistry for sites 300, 306, and 327 are illustrated in <br />Exhibit H, 1992 Mine Area Surface Water Hydrographs. As in previous years, the hydrographs <br />show that several water quality parameters are flow dependent; that is, as flow increases, pH and <br />TDS generally decreue while total suspended solids (TSS) increues. Please note that flow data <br />points shown as uro on the hydrographs, represent either no flow or a trace of flow. For <br />quality parameters, uro indicates that the value was below laboratory detection limits. Please <br />' refer to the tables for actual values. <br /> <br /> <br /> <br /> <br /> <br />~~oucu+wucertrtv9rtrtrn.xrr <br />iovn ~P,,, ACZ Int. • P.O. &u 7710/8 • Snambaat Springs Colorado 80177 • f303J 87%160 <br />
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