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PAR No 58100-06-18 i June 21, 1995 TABLE II SUMMARY OF SOIL SAMPLE ANALYSES CALTRANS SHOP 10 1603 SOUTH B STREET, STOCKTON, CA PAGE 7 OF 7 Boring Sample Depth TPHg TPHd B T E x Sample No Sample Date (feet bgs) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) Sampled by SB-22 10/2O/93 1 5 ND --- ND ND NO ND EA SB-22 10/20/93 5 ND --- ND ND ND ND SB-22 10/20/93 10 ND --- ND ND ND ND SB-22 10/20/93 15 ND --- ND ND ND ND SB-22 10/20/93 20 ND --- ND ND ND ND SB-22 10/20/93 25 ND --- ND ND ND ND SB-22 10/20/93 30 ND - ND ND ND ND SB-22 10/20/93 35 ND --- ND ND ND ND SB-22 10/20/93 40 --- --- --- -- --- SB-22 10/20/93 45 --- --- --- --- --- --- SS-22 10/20/93 50 --- --- --- --- --- --- SB-22 10/20/93 55 --- --- --- --- --- --- SB-22 10/20/93 60 --- --- --- --- --- --- SB-22 10/20/93 65 --- --- --- --- --- SB-22 10/20/93 70 --- - --- --- --- SB-22 10/20/93 75 --- - --- --- --- MW-24 10/20/93 1 5 0 088 -- 0 016 0 0012 0 0012 0 0088 EA MW-24 10/20/93 5 ND --- 0 0009 ND ND 0 0041 MW-24 10/20/93 10 ND --- 0 0008 0 0016 0 0008 0 0052 MW-24 10/20/93 15 ND --- ND ND ND ND MW-24 10/20/93 20 ND --- ND ND ND ND MW-24 10/20/93 25 ND --- ND ND ND ND MW-24 10/20/93 30 ND --- ND ND ND ND MW-24 10/20/93 35 ND --- 0 0044 ND 0 0015 0 0056 MW-24 10/20/93 40 ND --- ND ND ND ND MW-24 10/20/93 45 ND --- ND ND 0 OD09 0 0016 MW-24 10/20/93 50 ND --- ND ND ND 0 0015 MW-24 10/20/93 55 ND --- ND ND ND ND MW-24 10/20/93 60 ND --- ND ND ND ND MW-24 10/20/93 65 ND --- ND ND ND ND MW-24 10/20/93 70 ND --- ND ND ND ND W-24 10/20/93 75 --- --- --- --- --- --- Notes mg/kg = milligrams per kilogram (ppm) TPH9 = total petroleum hydrocarbon as gasoline BTEX = benzene, toluene, ethylbenzene and total xylenes < = below detection limit for analytical methods used WCC = Woodward Clyde Consultants ALTON = Alton Geoscience EA = Environmental Assessors, Inc WCC = Woodward Clyde Consultants