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3 <br />All parcels except one which Greg checked had average depths of <br />more than the required 12 inches. Parcel E-A-84 had only 9.75", <br />based on two holes (10 and 9.5"). Greg's results on parcels where <br />Trapper supplied "field data" were more variable than on any other <br />plots. If anyone feels there is a need to do more field <br />verification on range land, I recommend .it be done on parcels where <br />Trapper has "field data". <br />On five of the six parcels, Greg's results indicate more topsoil <br />than Trapper had estimated. On one of the six parcels, Greg's <br />results indicate less topsoil than Trapper had estimated (9.75" vs <br />12"). <br />Based on Greg's result's, I think DMG should rely on Trapper's <br />"field data" estimates from past years for parcels where DMG has <br />not independently verified replacement depths. If problems with <br />revegetation are evident on any parcels where topsoil depths have <br />not been independently verified, DMG should investigate that parcel <br />more closely. Otherwise, we should find that Trapper replaced <br />topsoil on these parcels as required by their permit. DMG should <br />attempt to independently verify replaced depths on all parcels <br />during each year in the future. <br />No Data <br />Greg dug 42 holes in 14 parcels representing 357.9 acres where <br />Trapper had no available data. These were all of the parcels where <br />no data was available. <br />Avg Depth 15.3" (9.5" to 24.75") <br />Std Dev 4.8" <br />Range 7.0" to 31" <br />13 of the 14 parcels had more than the required 12 " of topsoil. <br />One parcel (E-A-96) had only 9.75" of topsoil, based on two holes <br />(9.5" and 10"). This parcel only contains 12.2 acres. <br />Based on Greg's results, I recommend we find that Trapper has <br />replaced topsoil on these parcels, as required by their permit. <br />cc: Greg Bacon <br />David Berry <br />C:\wp51\072596 <br />