Laserfiche WebLink
w� <br /> 1`,INNPMW�11 M, <br /> SO <br /> Z.—WmE <br /> •ter- <br /> January 23, 1987 <br /> AGS Job #86Q6-2 <br /> Page 2 <br /> Samples were analyzed by Applied GeoSystems' laboratory, which is <br /> certified by the state- of California for the analyses performed. <br /> Samples were analyzed for total volatile hydrocarbons (TVH) and <br /> gasoline constituents (BTEX - Benzene, Toluene, Ethylbenzene, <br /> Xylene) . <br /> We interpret the available chemical data to indicate that soil <br /> contamination has been effectively mitigated to the north and <br /> west of the tank cavity. Samples S-16-1 and S-18-3 were <br /> contaminated at higher levels, and were beyond the reach of the <br /> 'equipment used. In our opinion, further excavation to the south <br /> would undermine the loading dock of the Creamery, and further <br /> excavation to the east would require widening of the tank cavity. <br /> on the basis of our field observations of the decrease or <br /> attenuation in levels of contamination with distance from the <br /> central part of the tank cavity, we consider it most likely that <br /> contamination levels above 100 pt:m are restricted to an area less <br /> than five feet from the. currently exposed south and east walls of <br /> the tank cavity. <br /> A copy of this letter should be forwarded to Ms. Laurie Cotulla, <br /> of the San Joaquin Local Health District, and to Mr. Gordon <br /> Boggs, of the California Regional Water Quality Control Board. <br /> If you have any questions regarding the information presented <br /> here, please do not hesitate to call. <br /> Sincerely, <br /> Applied GeoSystems <br /> Andrew P. Lus <br /> Project G ist <br /> Mich e1 N. Clark <br /> C.E.G. 1269 <br /> Attachments: Table 1 Laboratory Results <br /> Plate P--1 Site vicinity Map <br /> Plate P-2 Generalized Site Plan <br /> Laboratory Report of Analyses <br />