REP24413

• Permit No: C1981023
• IBM Index Class Name: Report
• Doc Date: 12/11/2001
• Doc Name: ANNUAL HYDROLOGIC MONITORING REPORT 1994
• Permit Index Doc Type: HYDROLOGY REPORT
• Media Type: D
• Archive: No

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Quarterly Pond inspection Report
Annual Certification
Operator.
FacWty:
Date of Inspectloo:
Weather.
Kaiser Resources, Inc.
Chimney Rock Mine, C-81-073
7 November 1994
Variable, overcast to clear, warm, calm.
Pood Identltlcatlon:
t Type of Pond:
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Pond Number 002
Sedimentation
Gluarterly Inspection
Approximate Water Level: 92.5' elevation [datum =top of embankment = 100'(Sedimentation Pond As-
Built, 7-7-91, Rev. 1, Exhibit 7, Permit), water estimated [o be lrh feet deep near
south end].
Sediment Level (9o total storage): 91.5' [lrh fee[ below water a[ south end, 3 feet above water at the inlet
(apex of delta)] = 0.6 acre feet (Sedimentation Pond As-Built, 7-7-91,
Rev. 1, F~dtibit 7). Sediment capacity = 0.5 acre feet (Greystone letter,
July 31, 1990, Re: Adequacy Review -Surface Water Control Plan,
Chimney Rock Mine (Permit No. G81-023). Approximately 23% of
pond storage to the primary spillway (Sedimentation Pond As-Built, 7-7-
91, Rev. 1, Exhibit 7, Permit).
Outflow [cubic feet per serond (cfs)]: 0
Operational Status At Time Of Inspection
FEATURES PROBLEM COMMENTS
Erosional
Rills & Gullies on No Small rivulets previously
Embankmeut observed have been obliterated
by animal (deer) tracks.
Inadequate Vegetation Yes Vegetation is sparse on the
upstream slope, some bare areas
on the downstream slope.
Outlet Channel Erosion No
Chimney Rock Mine Pond #002 Inspection Report & Certification, 18 November 1994, Page 1 of 6