ARCHIVED REPORTS_XR0003570 - Laserfiche WebLink

Home Browse Search

Site Characterization Report ABF Freight System,Inc Manteca California Pae 3 . TABLE 1 Former Soil Sample Analytical Results Sample Date TPH-D Benzene Toluene Ethylbenzene Xylenes Identification Sampled (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) T1-NW-10'4" 3/20/98 <0 5 <0 005 <0 005 <0 005 <0010 T1-SE-10'4"#2 3/20/98 <0 5 <0 005 <0 005 <0 005 <0010 D1-4' 3/20/98 <05 <0 005 <0 005 <0 005 <0010 SP1-S 3/20/98 220 <0 005 <0 005 <0 005 1 <0010 SPI-N 3/20/98 35 <0 005 <0 005 <0 005 <0010 mg/kg=milligrams per kilogram TPH-D=Total Petroleum Hydrocarbons as Diesel TABLE 2 Former Groundwater Sample Analytical Results Sample Date TPH-D Benzene Toluene Ethylbenzene Xylenes Identification Sampled (mg/L) (n/L) (pg/L) (pg/]L) (n/L) Excavation 11' 3/18/98 53 <2 5 <2 5 <2 5 <5 0 Pit Water 3/20/98 41 <0 005 2 2 27 mg/L=milligrams per Liter µg1L=micrograms per Liter TPH-D=Total Petroleum Hydrocarbons as Diesel A 6,000-gallon UST containing gasoline was previously removed from the site in 1986 According to phone interviews with Mr Robert McClellon of the PHS/EHD no soil or . groundwater contamination was found during the 6,000 gallon UST removal 1.5 Lead Agency Requirements CAL INC contacted the San Joaquin PHS/EHD to evaluate regulatory agency requirements for the project Based on CAL INC's review, San Joaquin County is the primary contact for he initial soil and groundwater sampling phase The California Regional Water Quality Control Board (RWQCB) becomes the lead agency in the event that soil contamination is encountered near the water table surface, or contamination is detected in the groundwater San Joaquin PHS/EHD will be responsible for direct project oversight, including the permits for the drilling and well construction activities Ms Lon Duncan of the San Joaquin PHS/EHD was the County oversight person for the site characterization work A copy of the San Joaquin PHS/EHD approved drilling permit is located in Appendix 4 1.6 Deviations from Work Plan Activities described in the approved work plan provided in Appendix 2 were generally followed during the field investigation However, the following minor deviations occurred during the fieldwork After MWI. was completed and soil samples were field screened, Ms Duncan determined that • the extent of contamination was likely to be minor to nonexistent Therefore, at the suggestion of Ms Duncan, it was decided to eliminate the southwest most monitoring well (based on the 11SERVF-RI1C-DRIVEIPROJECTSl32721P1ans and ReportslABF Freight Site Charactenzanon Closure Report doe 11/17/98