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~~~° TRAPPQI MINU~G INC. <br />SAID AND GIlAVEl. SIZE <br />Table D-1. Trapper Mining Inc. sand and gravel operation mining area description. <br />Sequential <br />Mining Overburden Sard acd Gravel Size of <br />Area Depth (ft) Tnickness (ft) Area (acres) <br />R~,~~.~~ <br />~~ <br />EsiilyFp bf C2 ~ ~~S <br />Overburden * Approximate DatesCi ~8/~8 ReSCg NQN <br />Type of Developnent ~~Cgg <br />Area 1 1-8 8-12 3.5 (1) 1985-1986 <br />Area 2 3-10 8-12 10.0 (1) 1986-1991 <br />Area 3 4-10 8-12 8.4 (1) 1991-1996 <br />Area 4 4-10 8-12 7.1 (1) 1996-2001 <br />Area 5 4-12 8-12 7.8 (1) 2001-2006 <br />Area 6 ~r12 8-12 8.6 (1) 2006-2014 <br />(1) Alluvial, flood plain deposits caLSisting of brain to dark brawn silt acd clay. <br />* Actual dates may vary depe,diig on customer gravel requirenents. <br />JM~1/ jb <br />12/16/85 <br />