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. TABLE 2 ANALYTICAL RESULTS GROUND WATER Carmen Punla Property-Stockton Results reported In Ag/e except as noted OR& Well Number Sampling TRPH-d TPH-g Grease Benzene Toluene Ethyl- Xylenes Date (Ingle) benzene MW-1 10/01/93 ND NA ND ND NO ND ND 02/06/95 ND ND ND ND ND ND ND 05/09/95 ND ND ND ND ND ND ND 08/11/95 ND ND ND ND ND ND ND 11/30/95 ND ND ND ND ND ND ND MW-2 10/01/93 ND NA NA ND ND ND ND 02/06/95 ND ND NA ND ND ND ND 05/09/95 ND ND NA ND ND ND ND 08/11/95 ND ND NA ND ND ND ND 11/30/95 ND ND NA ND ND ND ND MW-3 10/01/93 ND NA NA ND ND ND ND 02/06/95 ND ND NA ND ND ND ND 05/09/95 ND ND NA ND 03 ND ND 08/11/95 ND ND NA ND 04 ND ND 11/30/95 ND ND NA ND ND ND NO Reporting 10/01/93 50 50 5 mg1F 0 3 03 03 03 Linut 02/06/95 50 1 5 mg/f 03 03 03 03 inµgIf 05/09/95 50 50 5 mg/1 0 3 03 0 3 03 08/14/95 50 50 5 mg/P 0 3 03 0 3 03 12/01/95 50 50 1 mglt 03 03 0 3 03 ND Not detected above the laboratory reporting limit NA Not analyzed MCLstnug/P benzene=1,toluene=150,ethylbenzene=700,total xylenes=1750 SUMMARY Monitoring wells MW-1, MW-2, and MW-3 were again sounded and sampled on November 30, 1995 Utilizing a Keck® interface probe, the W W Irwin, Inc staff geologist intercepted the piezometric surface In the wells at an average depth of 31 60 feet, indicating that the water table has risen 0 22-foot in the 31h month period since August 11 when the average depth-to-water in the wells was 31 82 feet bsg The water table has risen an average of 4 43 feet since the wells were sounded on February 6, 1995 iUsing the three-point method, the calculated local direction of ground-water flow on November 30, 1995 was approximately N87°E along a gradient of 0 004 foot/foot The flow direction has shifted just 4° to the north since August 11, 1995 when it was S89°E The gradient has exhibited little change, having remained virtually flat during the period W W Irwin, Inc Project No 33236 00 January 1996 6