COMPLIANCE INFO_1996-2002 - Laserfiche WebLink

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C Fj C C n 0 0 11 C Ci u Mr. Michael Walton Walton Engineering December 20, 1996 the contaminant was not present at concentrations greater than the reporting limit (0.080 parts per million) of the laboratory method. Total lead was not detected at concentrations greater than 10 parts per million in any of the soil samples selected for total lead analysis (Table 1). The laboratory analytical report of the soil sample composites collected from the soil stockpile at the site indicated that elevated concentrations of TPHg, TPHd, and BTEX compounds (excluding benzene) were detected in all three of the soil sample composites (Table 2). Total lead was not detected at concentrations greater than the reporting limit of the laboratory method in any of the three soil sample composites (Table 2). F-1TffkRSff1M The soil stockpile at the site has been dispositioned for onsite soil aeration during the coming Spring and Summer months. Because concentrations of TPHg and BTEX in the sandy stockpiled material were relatively low, the San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD) has indicated that uncontrolled soil aeration may be permitted at the designated location. Authority to construct a soil aeration cell will be received in writing from SJVUAPCD, prior to commencement of soil aeration work. GRAYLAND ENVIRONMENTAL Grayland 022-130.trr 4 TABLE 1 LABORATORY RESULTS OF SOIL SAMPLES FUEL STORAGE TANKS/DISPENSERS 5611 EAST WATERLOO ROAD Tank Excavation S-14-T1n <1.0 <0.005 <0.005 <0.005 <0.010 na <10 S-16-T1m <1.0 <0.005 <0.005 <0.005 <0.010 na <10 S -21 -T1s <1.0 <0.005 <0.005 <0.005 <0.010 na <10 5-14-T2n <1.0 <0.005 <0.005 <0.005 <0.010 <1.0 na 5 -19 -T2s <1.0 <0.005 <0.005 <0.005 <0.010 <1.0 na 5-13-T3n <1.0 <0.005 <0.005 <0.005 <0.010 na na S-19-T3s <1.0 <0.005 <0.005 <0.005 <0.010 na na Fuel Dispensers S-4-FDe <1 <0.005 <0.005 <0.005 <0.010 <1.0 na S-4-FDw <1 <0.005 <0.005 <0.005 <0.010 <1.0 na Laboratory results of the soil samples are reported in milligrams/kilogram (parts per million) TPHg = Total Petroleum Hydrocarbons in the range of gasoline TPHd = Total Petroleum Hydrocarbons in the range of diesel fuel <0.005 = Less than the laboratory method reporting limits na = not analyzed The laboratory analytical report of the soil sample composites collected from the soil stockpile at the site indicated that elevated concentrations of TPHg, TPHd, and BTEX compounds (excluding benzene) were detected in all three of the soil sample composites (Table 2). Total lead was not detected at concentrations greater than the reporting limit of the laboratory method in any of the three soil sample composites (Table 2). F-1TffkRSff1M The soil stockpile at the site has been dispositioned for onsite soil aeration during the coming Spring and Summer months. Because concentrations of TPHg and BTEX in the sandy stockpiled material were relatively low, the San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD) has indicated that uncontrolled soil aeration may be permitted at the designated location. Authority to construct a soil aeration cell will be received in writing from SJVUAPCD, prior to commencement of soil aeration work. GRAYLAND ENVIRONMENTAL Grayland 022-130.trr 4