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<br />- The background surface and ground water in the area of the mine is relatively <br />saline. Following are the results of some of Peabody"s surface and ground water <br />self-monitoring for Specific Conductance: <br />Upstream from the NPDES <br />discharge pt. - site #70 <br />6/13/91-1020 umhos/cm <br />64 gpm <br />7/11/91- 990 umhos/cm <br />1200 umhos/cm <br />@ 119 gpm <br />1300 umhos/cm <br />Mine pond discharge <br />site #006 <br />no discharge <br />1020 umhos/cm <br />Samples from alluvial well # WB0100 have shown Specific Conductivity as follows: <br />11/04/87 - 1730 umhos/cm <br />05/31/88 - 2480 <br />08/16/88 - 2410 " <br />08/23/90 - 2630 <br />06/11/91 - 1860 umhos/cm from lab. test, 1720 umhos/cm field test. Some of the <br />earlier samples were not temperature corrrected to 258C. <br />The specific conductance of the ground water wells and the discharges from the <br />mine should continue to be monitored by the MLRD for long term trends. <br />Field Inspection <br />The inspection started on the Tie Across Haul Road (TAH) with review of the <br />culverts, bar ditches, side slopes, etc. The following culverts were blocked or <br />partially blacked and were cleaned during the inspection: TAHC-10 b 18, and the <br />oil well access road. Bar ditch q TAHD-9 had eroded to 1"deev x 3'wide x 75' rn <br />length, and was repaired and rip-rapped during the inspection. <br />The inspection of the mine site included a review of the entire perimeter of the <br />disturbed area on toot and in vehicles. The above noted participants also viewed <br />the undisturbed permit area. Problems noted on the mine site included 2 topsoil <br />protection issues. <br />(7) The fuel oil tank berm was constructed of what looked to he topsoil. <br />(2) The explosives pad berm was graded over topsoil that had not yet been <br />removed. <br />In both cases the topsoil resource was salvaged during the inspection. <br />Also, a drainage was blocked with approximately 4' of soil on the north side of <br />the active pit. Again, the permittee corrected the problem before the end of the <br />day. <br />Downstream ftom the NPDES <br />discharge pt. - site #66 <br />No entorcement actions were taken by OSM or MLRD. <br />