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March 9, 1992 <br /> SEACOR . <br /> MAR 10 1992 <br /> Mr. Stephen Schneider ,,t„E-.; ; <br /> ENV RONM <br /> San Joaquin County Public Health Services FERN 1_S <br /> 1601 East Hazelton Avenue <br /> Stockton, California 95201 <br /> QUARTERLY STATUS REPORT, MARVAL FOOII STORES, 429 WEST LOCKEFORD STREET, 4 <br /> LODI, CALIFORNIA, SITE # 1354 , <br /> Dear Mr. Schneider: <br /> On behalf of Mr. Mardee Kidd, SEACOR is submitting this report summarizing site activities <br /> conducted at the above referenced site between December 1991 and February 1992. During this <br /> time, SEACOR performed quarterly groundwater sampling and obtained an authority to construct . <br /> a soil remediation system from the San Joaquin Valley Unified Air Pollution Control District j7z: <br /> (SJVUAPD). The details of each activity are provided below. <br /> QUARTERLY GROUNDWATER MONITORING <br /> On February 13, 1992, SEACOR collected a groundwater sample from the existing groundwater <br /> monitoring well MW-1A. Prior to sampling of the well, SEACOR measured the depth to j <br /> groundwater in the well using an electronic water level indicator. Groundwater was measured at a <br /> depth of 45.53 feet below ground surface. Groundwater sampling was conducted in accordance with <br /> the procedures described in SEACOR's technical report elated June 11, 1991. <br /> The groundwater sample, identified as MW-1-0292, was submitted to GTEL Environmental <br /> Laboratory (GTEL) of Concord, Calirornia fr)r analysis of total petroleum hydrocarbons as gasoline <br /> (TPHg), benzene, toluene, ethylbenzene, and xylenes (BTEX) in accordance with EPA Methods <br /> 5030, Modified 8015, and 8020 and ethylene dibromide (EDB) in accordance with EPA Method 504. <br /> The results of the chemical testing are presented below. Complete laboratory data sheets and chain- �z <br /> of-custody records are included as an attachment. <br /> Chemical 'Testing Results for Well MW-1A <br /> February 1992 <br /> TPH gasoline 67 ' <br /> Benzene <0.3 <br /> Toluene <0.3 <br /> Ethylbenzene <0.3 ~ <br /> Xylenes (total) 0.6 <br /> EDB <0.02f <br /> tJ <br /> J- <br /> (all results reported in parts per billion or pph) 100 Pine Street � <br /> #2025 <br /> San Francisco <br /> CA 941.11 <br /> 415.296.78774 <br /> 415.677.9694 FAX <br />