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HYDRO20394
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HYDRO20394
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Entry Properties
Last modified
8/24/2016 8:41:43 PM
Creation date
11/20/2007 1:32:05 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981008
IBM Index Class Name
Hydrology
Doc Date
2/10/1999
Doc Name
1998 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 1998, WFC backfilled and graded 19.56 acres. WFC topsoiled 22.28 acres and permanently seeded <br />31.41 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 significant sediment inflow was observed. Their sediment volume <br />should be adequate. <br />Were changes made to your SWMP? Yes <br />At the New Horizon II area, a new perimeter ditch was constructed along the south-western portion of <br />the permit to contain any runoff from newly disturbed ground. This ditch discharges into the existing <br />Pond 007. There was no measurable flow through this ditch for 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 band 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 />D: \da [a\wpda to \storm\96sumprp. doc 2-3 <br />
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