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HYDRO23385
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HYDRO23385
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Last modified
8/24/2016 8:43:55 PM
Creation date
11/20/2007 3:47:49 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981008
IBM Index Class Name
Hydrology
Doc Date
6/23/2000
Doc Name
1999 STORMWATER ANNUAL REPORT
From
NEW HORIZON MINE
To
DMG
Permit Index Doc Type
OTHER SURFACE WATER
Media Type
D
Archive
No
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In 1999, WFC backfilled and graded 28.93 acres. WFC topsoiled 34.76 acres and permanently seeded <br />21.34 acres. This reclamation work will greatly reduce the runoff of sediment from disturbed land to our <br />sediment ponds. Ponds 002-006 were visually surveyed for adequate sediment and water storage <br />capacity for the 25yr - 24hr event. They appeared to have sufficient capacity. Ponds 001 and 007 were <br />also observed during the year and no signfficant sediment inflow was observed. Their sediment volume <br />should be adequate. <br />Were changes made to your SWMP for 1999? Yes <br />A new sediment pond, Pond 008, was constructed at the NHII area to assist in the SWMP plan. The <br />design for this sediment pond was submitted and approved by the DMG office. There was no discharge <br />from this pond in 1999 At the New Horizon II area, all culverts and ditches leading into Pond 007 were <br />capable of functioning as designed. There was no measurable flow ihru these ditches the entire year. <br />B. A SUMMARY OF EACH COMPREHENSIVE STORMWATER FACILITY INSPECTION <br />MADE.... <br />New Horizon Mine is small enough in land area that all active areas in the permit boundary are <br />inspected for SWMP compliance daily, Monday -Friday. This includes ditches, culverts, <br />sediment ponds, diversion ditches, petroleum storage facilities, and etc. Non-active areas, such <br />as established reclaimed areas awaiting reclamation bond release, are inspected weekly, with <br />detailed inspections monthly. Any deficiencies noted during any of the inspections were <br />corrected promptly. <br />In the New Horizon I area, no maintenance work was necessary. All ditches and culverts appeared to <br />be functioning properly. <br />C. RESULTS AND INTERPRETATION OF ANY STORMWATER MONITORING.. <br />Sediment Ponds 001 and 007 water discharges were tested weekly for the parameters listed in our <br />NPDES permit. All samples passed the water quality parameter set by our NPDES permit. Ponds 002 - <br />006 never discharged. <br />F:\data\wpdata\storm\99sumprp.doc 2-3 <br />
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