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~ United States Soil <br />~As.~, Department of ConseRation <br />~q~`-;~ <br />~N Agnculture Service <br />• <br />August 12, 1981 <br />Ferguson Engineering <br />1911 'lain Avenue - Suite #223 <br />Durango, Colorado 81301 <br />Dear Sirs: <br />701 Camino del Rio <br />Durango, CO 81301 <br />The soils information for the '4ayday mine sites is listed below. The soils <br />at Sites #1 and #2 are loamy-skeletal, mixed Typic Paleboralfs. Site #3 is in <br />sliderock with a small amount of soil material between the rocks. <br />• <br />• <br />Playday #1 <br />Normal soil adjacent to the site: <br />Ph: 7.2 <br />Conductivity .05 mmhos/cm <br />P".ine Tailings: <br />Ph: 8.2 <br />Conductivity: .15 mmhosicm <br />Mayday #2 <br />Normal soil adjacent to the site: <br />Ph: 7.2 <br />Conductivity: .05 mm;tos/cm <br />Piine Tailings: <br />Ph: 8.2 <br />Conductivity: .2 mmhos/cm <br />tlayday #3 <br />Normal soil adjace <br />Ph: <br />Conductivity: <br />f°ine Tailings: <br />Ph: <br />Co~~~!uctivi t;•: <br />O ine So' Consnrcan~n Sewce <br />is a~ agency of Ine <br />D eo3~tmen~ ~, Agnc .4 ~•e <br />nt to the site: <br />6.4 <br />.05 mmhos/cm <br />7.6 <br />.15 mmhos/cm <br /> <br />SCS-AS-1 <br />t0-79 <br />