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Existinj4 Environmental Conditions(Baseline) <br /> UST <br /> In an October 7, 1997 Saint-Gobain Corporation Interoffice Memo, it was noted that a <br /> June 13, 1996 Phase I Environmental Site Assessment was prepared by ENVIRON <br /> Corporation for Apache Plastics.The report stated that in 1988 a 1,000-gallon UST was <br /> removed that may have contained a flammable liquid and was located in the"east yard <br /> area".It further stated that a bottom sample detected a total petroleum hydrocarbon <br /> (TPH)of 1.4 part per million (ppm).The report also stated that a database search <br /> identified a registered 550-gallon gasoline tank and not the 1,000-gallon tank. <br /> Sage Recommendations <br /> Sage proposes to collect two(2) soil samples from the location of the former UST. These <br /> soil samples will be analyzed for benzene,toluene, ethylbenzene and xylene(BTEX), <br /> Total Petroleum Hydrocarbons—Gasoline and Diesel Range Organics (TPI -GRO/DRO), <br /> which are used to indicate fuel impact. <br /> Storage Pad <br /> The Memo further discussed a"Phase II Sampling survey performed in the area near the <br /> free standing building that contained the two(2)ASTs.Results from the sampling <br /> indicated no detections of BTEX although there was a question as to why they only <br /> analyzed for BTEX. <br /> A January 14, 1998 Phase II was conducted by Environmental Liability Management, <br /> Inc.for Saint-Gobain Corporation at apparently the same location as the above sampling. <br /> This sampling event was conducted"based on the results of previous Phase I <br /> Environmental Assessments(Golder, 1993;Environ, 1996)which identified the storage <br /> pad as the only area of potential environmental concern, and on a limited Phase II <br /> Investigation of the soil quality at the former storage pad (Upgradient, 1996)."The <br /> storage pad appears to have been located in the Outdoor PVC Storage area, south of the <br /> Manufacturing Plant. <br /> The Phase II included collecting soil samples from immediately below the concrete <br /> pavement and underlaying bedding stone and from a depth of ten feet below grade in six <br /> borings around the former pad.The samples were analyzed for VOCs using Method <br /> 8240,base-neutral extractables(BNAs)using Method 8270, lead and cobalt.Results of <br /> the analysis did not detect any VOCs,BNAs, lead or cobalt. <br /> Sage Recommendations <br /> Although it appears that many samples have been collected and analyzed from this <br /> location with no adverse results, Sage recommends two additional samples using a newer <br /> and more specific analytical method to ensure that there is no residual impact. Sage <br /> proposes to collect two(2) soil samples from the location of the former Storage Pad. <br /> These soil samples will be analyzed for VOCs using Method 8260B. <br /> Westlake Chemical Corporation Lodi-Due Diligence Assessment <br /> 4 <br />