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r yy <br /> San Joaquin County PHS/EHD <br /> March 29, 1990 <br /> Page 2 <br /> levels of gasoline and diesel were found in the water. The <br /> laboratories results of the water sample GW-1 were as follows: <br /> Ethyl Total <br /> Sample Gasoline Diesel Benzene Toluene Benzene Xylenes <br /> I.D. (mg/L) (mA/L) _(ug/L) (ug/L)__ _(uq/L) (ug/L) <br /> GW-1 17 40 7.2 1.9 2.8 4.7 <br /> Refer to Attachment 1 for the location of all soil and water <br /> samples, chain of custody, laboratory test data, and photovac <br /> results. <br /> i IIT. Conclusion: <br /> Laboratory results confirm that all of the contaminated soil <br /> has been removed from the ground. This soil was placed on <br /> plastic sheeting and covered and remains at the site. The <br /> i total estimated amount of contaminated sc�l removed is <br /> approximately,sixteen,yards. s/a ; 37 yd' i�>t�Y 12.s <br /> The ground water sample GW-1 taken, during the soil <br /> excavation, indicates that detectable levels of contamination_ {; <br /> exist in the water at this location. Further investigation <br /> was required and will be addressed in the Ground Water <br /> Contaminatio t-m-Asaassmenl=.Report which will be ' <br /> submitted tothe San Joaquin County PHS/EHD following this { <br /> report. ���/,�,r�y Kep!34T F <br /> IV. Proposed Soil Remediation: <br /> Because of the ever diminishing land fill space and the <br /> E <br /> potential risks of hauling this soil several hundred miles - <br /> south to Kettleman hills, just to be buried in the ground <br /> elsewhere, American Transit Mix Co. requests a variance from <br /> the local implementing agency, the San Joaquin County PHS/EHD, <br /> to o=c <br /> BlvAQ,, approximately five <br /> ca miles south of the 651 South Mac Arthur site where the soil <br /> € will be blended with our aggregate base rock and used as road <br /> base material. IraitiaLgampling- shall:-b� takerom�the, <br /> _� _ _ pi:.lei.before...ttte<7mater"kal= is ,etcldes]�:..ta�the...ruasi:x^ :oma <br /> -- --_-- discrete; $am�pl:es, to ensure-that-the-contamination-levels-of - - - -- - -- - <br /> the soil are below the 100 ppm state action levels. <br /> A detailed work plan for the transportation, storing, and <br /> sampling of this material will be submitted to the San Joaquin <br /> _ County PHS/EHD upon approval of this proposed plan. <br /> ,E <br /> b <br />