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X" <br /> PUBLIC HEALTH SERN110ES <br /> �AN JOAQt 1N Q)1-'N1-Y <br /> .10(71 K14ANNA A1),M,P 14 <br /> Hf'3� Iil Officer <br /> RO, fk)x 2009 10)1 East Hazelton Avenue) *Stockton,California 95201 <br /> (209)468-3400 <br /> 7\ <br /> SS JET CENTER <br /> 4800 SOUTH AIRPORT WAY <br /> j <br /> ST N` CA 95206 MAR 17 1992 <br /> RE: Stockton Airport REFER TO SITE CODE.* 1845 <br /> 5000 S. Airport Way <br /> Stockton, CA 95206 <br /> San Joaquin county Public Health Services, Environmental Health <br /> Division (PHS/EHD) has recently reviewed the analytical results <br /> of the soil samples taken from beneath the underground storage <br /> tanks that were removed from this site from 1987-1990. <br /> Current standards, laboratory detection li'mits, and/ your site <br /> specific characteristics (i.e. depth to seasonal high <br /> groundwater, nearby wells, septic systems) make it impossible for <br /> PHS/Eo evaluate your site for closure. <br /> If site closure certification is necessary, PHS/EHD would not be <br /> able to provide it without further site investigation. As listed <br /> below, 14 underground storage to removal sites require further <br /> remediation according to the Leaking Underground Fuel Tank (LUFT) <br /> field manual. <br /> Tanks #It #2t #31 #41 #S, and #6 <br /> Six - 25, 000 gallon fuel tanks removed February 15, 1990 <br /> thru February 28, 1990, removed from the Airport Tank Farm <br /> next to Aero Nastalgia Hanger on Dixon Road. Xylene levels <br /> in this pit were as high as 400 ppm. Total petroleum <br /> hydrocarbon (TPH) levels were as high as 2300 ppm. <br /> Tanks #at #91 #10, #11, and #12 <br /> Five - 25, 000 gallon fuel tanks removed February 22, 1988 <br /> thru February 26,, 1988, removed from the Airport Tank Farm <br /> on Dixon Road. Toluene levels in this pit were as high as <br /> 1100 ppm. TPH levels were as high as 2700 ppm. <br /> Tanks #21, #22 and #23 <br /> Three - 550 gallon tanks removed on March 8, 1990 from the <br /> 144w, Airport Tank Farm. Xylene levels in this pit were as high <br /> as 350 ppm. TPH levels were as high as 13,000 ppm. <br /> A NvWion of San joaqwn County HcAtti cam services <br />