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I <br /> SECOND QUARTERLY MONITORING REPORT <br /> Babka Distributing <br /> 1149 West Weber Street <br />' Stockton, California <br />' BACKGROUND <br /> The site is located in a flat industrial area in the Port of <br /> Stockton (Figure 1) . There is a large warehouse, a small metal <br />' storage unit, a large asphalt-paved parking area, and a rail spur <br /> on the property. The property was the site of Babka Distributing, <br /> a beer distributorship, until 1989 . The property has been vacant <br /> since 1989 . <br /> One 10, 000 gallon gasoline and one 3 , 000 gallon diesel tank were <br /> installed at the site in 1972 . The tanks were used to fuel the <br />' delivery trucks. <br /> Both underground storage tanks were removed from the site by Jim <br /> Thorpe Oil Company in April 1991. Diesel and gasoline contamination <br /> ' were detected in soil samples collected beneath the tanks. The Bank <br /> of Stockton was directed by San Joaquin County Public Health <br /> Services - Environmental Health Division (PHS/EHD) to perform an <br /> assessment of the lateral and vertical extent of the contamination. <br /> Falcon Energy Associates, Inc. was retained to excavate' Ince contaminated soil, and Geological Audit Services (GeoAudit) , <br /> was contracted to supervise the excavation and collect soil <br /> samples. A Site Contamination Workplan to excavate the contaminated <br /> soil and install groundwater monitoring wells was submitted in <br /> ' December 1991, and excavation began in January 1992 . Monitoring <br /> wells were installed in May 1992 . The first quarterly monitoring <br /> event was performed in early September. <br /> PROCEDURES <br /> ' The standing water was purged and water samples were collected from <br /> monitoring wells MW-2 and MW-3 on 15 December 1992. MW-1 could not <br /> be accessed, because the owner of the well, Union Ice Co. , had <br /> authorized WHY Environmental to change the lock on the well cover. <br /> ' MW-1 was subsequently accessed and sampled on 18 December. <br /> Samples were obtained after 7 to 8 gallons (approximately four wand <br /> ell <br /> volumes) of water had been removed and temperature, p <br /> conductivity of the ground water had stabilized (Appendix A) . These <br /> parameters were measured at one gallon intervals using a Hydac <br /> water analyzer. The water was placed in a DOT approved 30-gallon <br /> ' drum and stored on-site. <br /> Water samples were collected using a disposable plastic bailer. Two <br /> 40 ml EPA vials and one 1-liter bottle of water were collected from <br /> each well and transmitted in a chilled container to WEST <br /> Laboratories in Davis. Each sample was analyzed for total petroleum <br /> 1 <br />