SITE INFORMATION AND CORRESPONDENCE FILE 1

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CALIFORNIA GEOPHYSICAL GROUP, INC . P . O . Box 691 , Poway , CA 92074 Tel : (619) 486- 1323 Maroh 29 , 1993 FAX: (619) 6 Public Health Services San Joaquin County P . O . Box 2009 � r Stockton , Ca 95307 RE : Activity Report Darpetro Service Station ✓f/r�� , '� r 749 E . Charter Way Stockton , Ca . Site # 1060 On March 24 , 1993 , we measured and pumped well BM-5 . This well had been reported to have floating free product . The sampler had bailed the well and had attempted to remove all of the free product . This work was to remove as much of the free product as possible around the well . Activity : The depth to water was measured at 53 . 20 feet and we were able to identify a sheen on the surface of the well water . No measurable floating product was present . The odor of gasoline was present . A bladder pump was lowered into the well water 4 inches . The pump inlet is located in the bottom 2 inched of the pump , therefore , the pump was removing the surface water where the floating product is located . The water was pumped into an open 5 gallon bucket and the surface of the water was observed . In the first bucket we noted a slight sheen on the water , however , all of the next 10 buckets did not contain any sheen or product . The water had an odor of stale water but not of gasoline . The pumped water was placed in a 55 gallon drum and left on site . It will be removed by a hazardous waste hauler in the future . Since we were unable to remove any significant product , we decided to discontinue trying to remove product from this well . Yours tru C�j 9V eyv �) s NO 01979 I� TA John Cussen f Reg . Environmental Assessor # 1979 Expires: a p q) 11 F 04qt Of CALIF U"O