Laserfiche WebLink
Former Beacon Station 494 - - - August 8, 1995 <br /> Stmktnn Ca3if=ja AcePgcmPnt RCpW <br /> x <br /> in the soil samples and depths that would characterize the soil The selected soil samples were <br /> analyzed for total petroleum hydrocarbons as gasoline (TPHg), and benzene, toluene, <br /> ethylbenzene, and total xylenes(BTEX) by modified Environmental Protection Agency(EPA) <br /> Methods 5030/8015/8020 In addition,the four soil samples collected from the stockpile of drill <br /> cuttings were composited in the laboratory and analyzed for TPHg and BTEX using the same <br /> modified EPA methods mentioned above <br /> Gasoline hydrocarbons were not present (nondetectable) above the Iaboratory reporting limits <br /> in any of the soil samples analyzed from borings CB-3 and CB4 Benzene and toluene were not <br /> present above the laboratory reporting limits in any of the soil samples analyzed from the bongs <br /> Concentrations of gasoline hydrocarbons in borings CB-I and CB-2 ranged from nondetectable <br /> to 320 parts per million (ppm) of TPHg, and nondetectable to 0 46 ppm for the remaining EX <br /> constituents Gasoline hydrocarbons were not present above the laboratory reporting limits in <br /> any of the last two consecutive soil samples collected and analyzed from bonngs CB-1 and CB-2 <br /> Laboratory results are summarized in Table I and laboratory analytical reports including COC <br /> forms are included in Appendix D <br /> CONCLUSIONS <br /> Based on the data collected during this investigation Horizon concludes the following <br /> • Low levels of TPHg are present in the soil beneath the site Two soil samples from CB2 <br /> contained TPHg at 160 ppm and 320 ppm <br /> • Hydrocarbons appear to be vertically and laterally defined in the soil in the vicinity of the <br /> former UST's and immediately west of the former UST's <br /> 1494 11-RPT 5 HORIZON ENVIRONMENTAL INC. <br />