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<br /> KEI-J91-0202.R3
<br /> April 9, 1991
<br /> Page 2
<br /> Soil samples were analyzed to determine concentrations of total
<br /> petroleum hydrocarbons (TPH) as gasoline using EPA method 5030ain
<br /> conjunction with modified 8015, and benzene, toluene, xylenes
<br /> ethylbenzene using EPA method 8020. In addition, at the request of
<br /> the San Joaquin Local Health District, samples Comp B, P
<br /> mp
<br /> G and Comp J were analyzed for toxicity using the and istatic
<br /> t ac acute
<br /> hazardous waste bioassay; reactivity, corrosivity g
<br /> and inorganic persistent and bioaccumulative toxic Com taAnc ComTTDC
<br /> metals) . Analytical results of the soil samples (Comp F.... ,
<br /> Comp F, Comp H and Comp L through Comp V) indicate levels of TPH ?�
<br /> gasolirie ranging: fxom 4.0 ppm ;to 93 .pplo, However, analytics
<br /> results of' the soil samples (Comp B, -Comp C, Comp E, Comp G, Comp
<br /> J, Comp K, Comp W,. Comp X, Comp 1, Comp 21 Comp .AA, and Comp BB)
<br /> indicate levels of'TPH.,as..ga`soline,ranc}iing .from J0Q.ppni_ to 710._P:
<br /> Results of the soil analyses are summarized in Table 1. Copies of
<br /> the laboratory analyses, and the Chain of Custody documentation are
<br /> attached to this report.
<br /> Based on the analytical results of the soil samples, approximately
<br /> 750 cubic yards of stockpiled soil represented by samples Comp A,
<br /> Comp D, Comp F, Camp H and Comp, L through Comp V was disposed of at
<br /> BFI Waste Systems in Livermore, California, an approved Class III
<br /> disposal site, by Dillard Trucking. However; prior to loading and
<br /> off-hauling of the stockpiled soil, KEI recommended than when
<br /> obvious isolated high contamination is detected within the
<br /> stockpiled soil, that portion of the soil be separately stockpiled
<br /> for further treatment and sampling.
<br /> Approximately 500 cubic yards of stockpiled soil re.presenn and by
<br /> Comp B, Comp C, COMP Z, ComF p , comp G,
<br /> andmComp BBmshould remain on-site
<br /> Comp X, Comp Y, p
<br /> for treatment and further sampling.
<br /> DISTRIBUTION
<br /> A copy of this 'report should be sent to Mr. Steve Schneider of the
<br /> San Joaquin Local Health District, and to the Regional Water
<br /> Quality Control Board, Central Valley Region.
<br />
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