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.. <br />State Reg. <br /> <br />C 4.2 Future Sampling <br />Spoil sampling will be concentrated in the Wolf Creek <br />reclamation area. Spoil will be sampled on a 300-foot grid and <br />analyzed for pH, manganese, and acid-base potential. A <br />selectively handled suitable spoil to pdressing or lime <br />application will be made where acid strata (pH <5 and ABP< -5) <br />is encountered. <br />Sampling will also focus on the high clay areas near Core Hole <br />2034 E. The spoil will be deeply ripped or chiseled plowed <br />where clay strata exist on the spoil surface. <br />Regraded spoil from the Lennox highwall reduction area (in the <br />immediate vicinity of Drill Hole Site 2614E) will be sampled on <br />a 300-foot grid and tested for sodium. Exposed sodic strata <br />will either be buried in the final pit or covered with two to <br />r three feet of suitable spoil. <br />Postmine spoil water quality will continue to be monitored for <br />N03-N at Sites BP-0001 and DA-0004. Spoil samples will also <br />continue to be collected and analyzed for N03- and NH4-N from <br />representative vegetation transect locations in the 'lodge <br />mining area. <br />6-164 Revised 10/1/86 <br />