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CAM B R ! A MS Michelle Le
<br /> • June 3 2005
<br /> alcohol [TBA], di-isopropyl ether, ethyl tert-butyl ether, tert-amyl methyl ether, and methyl
<br /> tertiary butyl ether)by EPA Method 8260B Sample TP-10 was also analyzed for total petroleum
<br /> hydrocarbons as diesel (TPHd) by EPA Method 8015 (Modified), polychlorinated biphenyls
<br /> (PCBs) by EPA Method 8082, chlorinated hydrocarbons by EPA Method 826013, and CAM 17
<br /> Metals by EPA Methods 6010B and 7471A Samples were analyzed by State-certified Kiff
<br /> Analytical, LLC, of Davis, California or Severn Trent Laboratories, Inc of Pleasanton,
<br /> California The laboratory reports are included as Attachment B
<br /> Pea Gravel Re-use All pea gravel removed during UST, product piping, and dispenser removal
<br /> activities was stockpiled and stored on site On March 25, 2005, under the direction of Michele
<br /> Le of the SJCEHD, Cambna field staff sampled approximately 500 cubic yards of pea gravel
<br /> (SP-2-1, SP-2-2, SP-2-3, SP-24, and SP-2-5) The samples were analyzed for TPHg, BTEX, and
<br /> lead Based on the analytical results, the pea gravel was re-used by Paradiso The certified
<br /> analytical laboratory report is included in Attachment B
<br /> Soil Disposal Approximately 333 tons of soil were generated during field activities, temporanly
<br /> stored on site, and covered with plastic sheeting The soil stockpile was sampled and profiled for
<br /> disposal The laboratory report is included in Attachment B On April 11, 2005, Manley and
<br /> Sons Trucking, Inc of Sacramento, California transported the soil to Allied Waste Industries'
<br /> Forward Landfill in Manteca, California for disposal as non-hazardous waste Disposal
<br /> confirmation is included as Attachment C
<br /> ANALYTICAL RESULTS
<br /> Cambria summarizes soil analytical results in Tables 1 and 2 The laboratory analytical reports
<br /> are included in Attachment B A summary of these data is presented below
<br /> Four samples collected from the UST excavation contained TBA at concentrations ranging from
<br /> 0,0051 to 0 12 parts per million (ppm) No TPHg, BTEX, or fuel oxygenates other than TBA
<br /> were detected in any samples collected from the UST excavation Over-excavation samples did
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<br /> not contain any petroleum hydrocarbons or fuel oxygenates
<br /> The soil sample collected from beneath the waste oil UST contained 0 751 ppm arsenic, 20 9 ppm
<br /> barium, 3 93 ppm chromium, 1 65 ppm cobalt, 7 68 ppm copper, 2 31 ppm lead, 170 ppm nickel,
<br /> 8 91 ppm vanadium, and 19 9 ppm zinc No TPHd, TPHg, BTEX, fuel oxygenates, PCBs, or
<br /> chlorinated hydrocarbons were detected in soil beneath`the waste oil UST
<br /> No petroleum hydrocarbons or fuel oxygenates were detected beneath the dispenser or piping
<br /> areas
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