ARCHIVED REPORTS_XR0005078 - Laserfiche WebLink

Home Browse Search

TABLE 4 Comparison to SFBRWQCB's ESLs BOB'S MUFFLER 466 Moffat Boulevard, Manteca, Califomia 5h toVa'.o_ �DeeP Soil (m (k r. ;' , W � <.. ater(,ugll) bnstituent 152? R�§id`ent�aJMQRCR� a tdenfi' omni waltiaonce i' x S . ,. = E c nce trate ri S 7conceh "a ii9nnric n ins c cen ai�ons Benzene 85,000 290,000 <0.5 0.044 0.044 <0.005 1.0 <0.5 46.0 <0.5 Toluene 63,000,000 180,000,000 <0.5 2.9 2.9 0.11 40 0.85 130 0.85 Ethyl-benzene 420,000,000 1,200,000,000 <0.5 3.3 3.3 10 30 111 290 111 Xylenes 150,000,000 410,000,000 <1 2.3 2.3 13 20 57.3 100 57.3 TP14-14 26,000,000 72,000,000 <50 200 200 670 200 1,986 500 1,986 TBA 2,600,000 8,700,000 NA 0.073 0.073 <0.25 12 <10 1,800 <10 MTBE 9,400,000 31,000,000 <0.5 0.023 0.023 <3.0 5 <1 1,800 <1 1,2-DCA 120,000 390,000 NA 0.0045 0.0045 <0.05 0.5 <0.5 200 <0.5 EDB 34,000 110,000 1 NA 0.00033 0.00033 <0.05 0.05 <0.5 1 150 <0.5 Notes: ESL: San Francisco Bay Regional Water Quality Control Board's Environmental Screening Levels Note 1: Data collected from soil vapor extraction pilot test sampling of five soil-vapor samples from vapor extraction well VW-1 on 09-16-2005 Note 2: Data collected from site investigation:maximum levels reported. Note 3: Data collected from site investigation:average last 8 quarters from three impacted ground water monitoring wells MW-2,MW-3 and MW-5. Note 4: Residential and Commercial ESL from Table E (Indoor Air and Soil Gas)of SFBRWQCB ESLs Note 5: Residential and Commercial ESL from Table C (Deep Soils)of SFBRWQCI3 ESLs where ground water is a current or potential source of Drinking Water Note 6: Residential and Commercial ESL from Table D (Deep Soils)of SFBRWQC13 ESLs where ground water is NOT a current or potential source of Drinking Water *: Deep Soil defined as greater than 3 meters below grade surface. mg/kg: milligrams per kilogram ug/l: micrograms per liter TPH-g: Total Petroleum Hydrocarbons quantified as gasoline MTBE Methyl tertiary-butyl ether TBA: Tertiary butanol 1,2-DCA: 1,2-dichloroethane EDB: 1,2-dibromoethane <: Indicates constituents were not detected at a concentration greater than the reporting limit shown. Advanced GeoEnvironmental, Inc.