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REP18808
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Entry Properties
Last modified
8/24/2016 11:47:38 PM
Creation date
11/27/2007 2:29:18 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981020
IBM Index Class Name
Report
Doc Date
2/1/1993
Doc Name
1992 ANNUAL HYDROLOGIC REPORT MUNGER & MCCLANE CANYON MINES
Annual Report Year
1992
Permit Index Doc Type
HYDROLOGY REPORT
Media Type
D
Archive
No
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SCI, T CREEK IYII,~Il~i u COIYIP~NY" <br />P.O. Box 70 - " <br />Loma. Colorado 81.200-0 <br />• (303) 858-3608 <br />July 20, 1992' <br />CDCn - Srat~, wu.,i. Control Di-~ison <br />Parmits and Enforceme-` Section <br />?~~G E3St 11~I3 ~JenLL~ <br />Re: Permit CO C0383~3 <br />Dea_ }Ss. Thlenfeidt; <br />' Cn tae night of Jul°: 1=, 199? there was an intease storm at Salt <br />Creek's McClane Canyon Miae. The storm started at about S: 00 Fy, <br />13sted about one half hour and deposited about 2.5 inches of rain. <br />The 10 year 2~k hour storm for this area is about 1.4 inches. This <br />storm approximated -the 100 year 2,4 hour storm_ event, 2.4 'inches.. <br />_ i <br />The sediment ~ <br />p~nd at the mine was completely filled with sv.ater end. <br />-_sediment. Thi poad is designed to.retaia the volume of si;~ l0 year <br />• - 24 hour events: Prior .to the storm there was approximately volume <br />_- - of one 10- y~ar~event stored in th,e.pond. Bn unkaown quantity of •- <br />water and sediment-bypassed the pond through the emergency spillway <br />and overflowed .t he embankment after the pond was filled. - <br />On July 13, 1992, Mr. John %ubic of your office was informed of the <br />storm and the need for Salt Creek to discharge the water in the pcnd <br />to regain the capacity of the pond for the ^ext stores. do exemption <br />for the large storm was also requested. blr. Rubic explained that <br />the normal'procedure was to discharge the water and sample the <br />discharge. Rz explained that these results should be submitted vita <br />tae nest D,~iR for Point 001. <br />It was ag-eed that norTal samolin~ procedures and repo:lino would be <br />followed. Soli Creek also committed to send you this letter new to <br />ex?lain the circumstances of the discharge. I will also resubmit <br />this letter and the sampling results with the DbIR for tail quarter. <br />Pl~asz call. if there are questions or if I can be cf assistance. <br />Sincerei, <br />~- <br />- „7 ~ ~ <br />~~~~ <br />I John M. Walters <br />Manager of Mine Services <br /> <br />~~ _ it <br />r: -r <br />
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