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TABLE 2 ANALYTICAL RESULTS- GROUND WATER Carmen Punla Property - Stockton (Fig/1) 011& sample- sampling TRPH-d TPH g Grease Benzene Toluene Ethyl- 7Cylenes well Number Daae (mgll) Benzene MWA 10/01/93 ND NA ND ND ND ND ND 02/06/95 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 MW-3 10/01/93 ND NA NA ND ND ND ND 02/06/95 ND ND NA ND ND ND ND Reporting Linut 10/01/93 50 50 5,000 03 03 03 0 3 02/06/95 50 1 5,000 0 3 0 3 0 3 0 3 ND Not detected above the laboratory reporting hunt NA Not Analyzed MCLS in pg1P benzene=l toluene=100,ethylbenzene=680 total xylenes=1750 SUMMARY Monitoring wells MW-1, MW-2, and MW-3 were sounded and sampled on February 6, 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 36 03 feet bsg This represents an increase in elevation averaging 2 99 feet since they were first sampled on October 1, 1993 Using the three-point method, the calculated local direction of ground-water flow on February 6, 1995 was approximately N83°E along a gradient of 0 004 foot/foot The flow direction has remained essentially unchanged since the October 1, 1993 soundings of the ground--water monitoring wells by Roger Foote Associates (RFA) of West Sacramento It should be noted that Ithe RFA summarial opinion of flow direction in 1993 was erroneous (flow direction ESE) Ground-water samples were collected from the three wells, refrigerated, and received at Sherwood Labs on February 8, 1995 The samples were analyzed for oil & grease, diesel, gasoline, and BTEX constituents The report of analytical results revealed wholly nondetectable concentrations of all constituents The next scheduled sampling event for this site 1s May 5, 1995 WW Irian Inc Project No 33236 00 March 1995 5