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THE J <br /> May 30, 1991 SOUTHLAND <br /> CORPORATION <br /> San Joaquin County Dept. <br /> of Environmental Services <br /> c/o Ms. Laurie X. Cotulla <br /> P.O. Box 2009Xft <br /> Stockton, Ca 95201 REUEV' 'k <br /> Re: Southland property #20304 JUN 3' 1991 <br /> 455 W Grantline- Road ENVIRONMENTAL HEALTH <br /> Tracy, Ca PLRkM1-i/-SERVICES <br /> Dear Ms. .Cotulla: <br /> I am writing in response to your letter dated May 3 , 1991. <br /> You will find the following discussion responds to six (6) of <br /> your seven (7) comments. You will find that a letter re- <br /> sponse from the project consultant, Harding Lawson, is en- <br /> closed in response to item number seven (7) . <br /> f <br /> Item #1 tank information discrepancies- <br /> All of your comments outlined in item number <br /> one (1) are correct and there-are no discrepancies. <br /> Prior to October 30, 1986, this location operated <br /> with the following tank assignment: <br /> Regular leaded gasoline (north of three) <br /> f Premium unleaded gasoline (center of three) <br /> Unleaded gasoline (south of three) <br /> i <br /> Precision tank testing which was actually complete , <br /> on October 28, 1986 revealed that the regular (north) <br /> and premium (center). tanks were in compliance. The <br /> no lead (south) tank did not meet N.F.P,.A. <br /> specifications. <br /> On October 30, 1986 the south tank which at- that time <br /> contained unleaded fuel` was emptied of its contents and <br /> no longer remained in service. In 1986 unleaded fuel <br /> made up 60% of this location' s overall. gasoline sales <br /> volume. Because premium unleaded gasoline only made up <br /> approximately 14% of the gasoline sales volume, it was a <br /> logical choice to re-grade the center tank -as unleaded <br />` gasoline. This change occurred simultaneously with the <br /> unleaded pump out. <br /> Southland Envirinmental Services 1 Location 2981 i 5470 Stunctidge Mall Roa-1!Suite 3101 P.O. Box 404 1 Pleasanton, %A 94589 <br /> 415-463-2711 1 FAX 415-463-3378 <br /> w - - - AW <br />