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In 2001, W FC backfilled and graded 36.22 acres. W FC topsoiled 48.79 acres and permanently seeded <br />40.19 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 />Pond 008 did not discharge until December of the year, when W FG elected to pump `clear` pit water <br />thru the discharge structure. In essence, short circuiting the pond. W FC was concerned that water would <br />filter through the bottom of the freshly made pond bottom and reenter the active pit and cause mining <br />difficulties. That was the main reason for the decision to short circuit the pond in the first place. WFC <br />took the necessarygrab samples when waterwas being discharged out of Pond 008's structure and they <br />were satisfactory. WFC took a W ET test sample in late December and sent it off. The Ceriodauphnia <br />dubia test failed and CDPHE was immediately notified and an accelerated WET test program was <br />implemented. The first accelerated test of Ceriodauphnia dubia also failed. WFC then elected to stop <br />pumping to Pond 008 and directed the pit water to Pond 007, where the WET test (Ceriodauphnia dubia) <br />passed. WFC canonlyspeculatethattheCeriodauphniadubiadiedbecausetherewasn'tsufficienttime <br />for the water to stabilize before discharging. <br />Were changes made to your SWMP for 2001? Yes <br />Pit pumpage into Pond 008, or the process of short circuiting the water through the discharge structure <br />was discontinued after the December 2001 WET test failure. Pond 008 was left alone and has 100% <br />storage capacity. <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 />F:\data\~+pdata\storm\02swmprp.doc 2-3 <br />