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storage area. The area is designated a small area exemption <br />but includes BTCA practices. The site is graveled, and <br />includes a berm. The berm is equipped with a rock Lined <br />outlet. The area was generally in good repair at the time of <br />the inspection. <br />*The inspection continued with observations of both the east <br />and west ponds. Both were in good repair at the time of the <br />inspection. The east pond includes two spillways. A primary <br />spillway which is a 30 inch corrugated metal pipe (CMP) and an <br />open channel emergency spillway. Sediment that was removed <br />from the pond has been stockpiled immediately upstream. It is <br />waiting the results of testing to determine if it is a <br />suitable plant growth medium. A small amount of the material <br />was placed on the top of the embankment of the pond because a <br />recent survey disclosed some low spots. An approximate six <br />inch lift was placed over an estimated 25 to 30 feet of the <br />top of the embankment. There were not any signs of erosion of <br />the material from the top of the embankment. I cautioned the <br />DMG representative that testing of the material should occur <br />before any further use and if the testing reveals that it is <br />not suitable the material that has been placed on the <br />embankment should be removed. The material was placed on the <br />pond embankment with the approval of DMG. The west pond was <br />also in good repair. It includes two spillways with the same <br />configuration as the east pond. <br />The culverts we inspected were generally in good repair. The <br />location of each culvert is depicted on the Mine Surface <br />Drainage Map, Map C-4. AFO's copy of the mining and <br />reclamation plan (MRP) is not current so the most recent Map <br />C-4 that we have is dated 1/12/90. There is a 30 inch CMP <br />immediately upstream of the west pond, the outlet of which <br />discharges to a diversion. There was evidence that sediment <br />had been recently removed from the outlet and ice was <br />obstructing part of the culvert. The ice was located inside <br />the cmp. The cmp was not completely plugged and the <br />permittee's representative indicated that rather than attempt <br />to remove the ice they will wait for it to melt. The <br />inspection of the culverts also indicated that most do not <br />include any head walls. The culverts were apparently sized to <br />accept the design flow without head walls, according to the <br />DMG representative. An 18 inch cmp in the diversion on the <br />southwest corner of the disturbed area includes a 24 inch head <br />wall. <br />There is a diversion on the west side of the disturbed area <br />near the fan, that routes runoff to the pad where it is <br />contained within the watershed of the west pond. We noted <br />that coal waste, from snow removal operations was partially <br />obstructing the diversion. The permittee removed the material <br />during the inspection. We also noted a low spot in the <br />diversion on the southeast corner of the disturbed area. The <br />low spot was located in an area where a sediment basin had <br />been constructed. The diversion discharges "undisturbed" <br />4 <br />