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t <br /> PUBLIC HEALTH SERVICES �oj6o,,� <br /> SAN JOAQUIN COUNTY � ;1,JOG] ;HANNA M.D..M.P.H.Health Officer <br /> P.O. Box 2009 • (1601 Fast Hazelton Avenue) Stockton, CaUfomia 95201 e4�l <br /> (209) 468-3400 <br /> DAVID CHAVIER <br /> BANK OF STOCKTON <br /> P O BOX 1110 ��� 12 199 <br /> STOCKTON CA 95201 <br /> RE: Babka/San Joaquin Beverage Company SITE CODE: 2000 <br /> 1149 West Weber <br /> Stockton, CA 95201 <br /> San Joaquin County Public Health Services,Environmental Health Division (PHS/EHD) has <br /> prepared a summary of the meeting held on September 12, 1993, which was attended by <br /> PHS/EHD representatives, Mary Meays and Diane Hinson and by your consultants, Vic <br /> Cherven of Geological Audit and Jeff Patton of Ned Pepper. The meeting was held in order <br /> to discuss the additional investigation which PHS/EHD requested in correspondence dated <br /> September 28, 1993. <br /> Background <br /> Two underground storage tanks were removed April 4, 1991. Soil samples collected <br /> at 13 feet beneath the 3,000 gallon diesel tank evidenced contamination up to 720 <br /> ppm TPH-diesel, 32 ppb benzene (B), 52 ppb toluene (T) 210 ppb ethylbenzene <br /> (EB) and 150 ppb xylene (X). The highest contamination associated with the diesel <br /> tank was documented from samples collected from the west side of the former tank <br /> location. Soil samples collected at 15' from beneath the 10,000 gallon gasoline tank <br /> evidenced contamination up to 33 ppm TPH-gas, 26 ppb B, 22 ppb T, 25 ppb EB, <br /> and 42 ppb X. The highest contamination associated with the gasoline tank was <br /> documented from samples collected from the east end of the former tank location. <br /> An excavation was initiated on January 16, 1992 and soil and "grab water" samples <br /> were collected on February 3, 1992. The soil samples were collected from the <br /> sidewalls at depths of 8.5 to 12 feet below ground surface (bgs). Groundwater had <br /> seeped into the excavation and was subsequently pumped and improperly disposed <br /> of by Falcon Energy. No contamination was detected in the sidewall samples <br /> collected from the excavation; however, groundwater contamination was evidenced <br /> up to 590 ppm TPH-diesel. The excavation was subsequently backfilled with pea <br /> gravel on April 28, 1992. <br /> A Division of San)oagwn County Health Care Serncca �> <br />