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On November 5, 1988, 1-300 gallon waste oil tank was removed from the property. Soil samples collected reported TPH at 4,000 ppm,benzene at 760 ppb,toluene at 1,290 ppb, ethylbenzene at 540 ppb,and xylene at 2,000 at ppb. No additional information was found in the file regarding follow-up work performed on the former waste oil tank. Togy School District. 315 East I Ith S=et This site is located approximately 0.4-mile east of the subject property on the northeast comer of East 11th Street and East Street. On September 16, 1987, 1-1,000 gallon gasoline fuel UST was removed from the site, and three soil borings were drilled in the vicinity of the former UST location(January 4, 1988), and converted to monitoring wells. Groundwater collected from the monitoring wells detected low levels of benzene (0.90710.532 ppm). Additional quarterly groundwater sampling has not detected petroleum hydrocarbon above the detection limits. On December 21, 1993, 1-1,000 gallon diesel UST was removed from the site. No soil samples were taken during the tank removal,and the excavation was lined with plastic sheeting(10 mil),backfilled,and capped with asphalt. SJCPHS has requested additional work be performed at the site. Additional soil borings were drilled and soil and groundwater samples were collected and analyzed for TPH-G,TPH-D,BTEX and,total lead. Analytical results reported high concentrations of TPH-G, and BTEX.Refer to Appendix C for analytical results. SJCPHS recommends that a comparative evaluation of the cost effectiveness and efficiency between the types of groundwater treatment alternatives proposed be performed.The proposed remediation for the site is scheduled for the summer of 1995.Refer to Appendix C for information on the types of remediation systems proposed. Beacgn Service West I 11h Street This site is located approximately 0.4-mile west of the subject property on the northwest comer of West 11th Street and Bessie Street. In 1988,three USTs were removed from the site. Soil and groundwater samples collected detected Hydrocarbon contamination.The soil was allowed to aerate for more than a year,and the tank excavation has not been backfilled. Groundwater monitoring wells were installed between 1988 and 1993, and have not been sampled on a quarterly basis.A quarterly monitoring program was initiated in February 1993.The most recent Quarterly GroundwaterMonito'rnng Report is presented in Appendix C.SJCPHS has requested a Problem Assessment Report be submitted after the extent of contamination has been defined beneath the site. Ed's Muffler Sbgp- 595 East I I th Street This site is located approximately 0.5-mile east from the subject property on the north side of East 11th Street between Franklin Avenue and East Street.In 1979, one UST was removed and replace due to an approximately 1,400 gallons of gasoline leaked into the soil and groundwater. In January 1990, 1-8,000 gallon fuel, 1-7,500 gallon fuel, 2-4,000 gallon fuel and, 1-500 gallon waste oil USTs were removed from the property. In March 1992,three groundwater monitoring wells were installed at the site.Groundwater samples collected from the monitoring wells reported high concentration of TPH-G and BTEX. 11