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1& 0 0 AFF M6 J L ANALYTICAL SERVICES, . ul 217 Primo Way • P.O.Box 576185 • Modesto,California 95357 Office(209)538-8111 . FAX(209)538-3966 27 July 1995 POSDEF Power Co, LP ATTN: Ed Stockton 2526 W. Washington St. Stockton CA 95203 Dear Sir, The following is a report on the activities performed by a representative of JL Analytical Services, Inc. over a period of 9 days starting with 17 July 1995, in relation to the Sulfuric Acid spill. The morning of Monday 17 July 1995, Mark Jacobs of JL Analytical was contacted by Ed Stockton of P.O.S.D.E.F. Mr. Stockton indicated there had been a spill of Sulfuric Acid onto an area of soil. He indicated that Ericson Environmental was already on site and had begun removing soil presumed to be contaminated. Ed explained the role of JL Analytical would he to determine the extent of the contamination and to direct the efforts of Ericson personnel to ensure they removed the contaminated soil. Upon arrival to the site, Mr. Jacobs was provided with appropriate safety gear and resources with which to perform the testing for pH. An Orion model SA 250 pH meter with an Innovative Sensors, Inc., SOTA pH electrode was utilized to perform the analyses. The meter was calibrated by standard procedures. The first step was to determine the background pH level of the soil. The soil was sampled at a depth of one foot below the surface at the cooling towers, the air dryers, and by the auxiliary steam generator. The pH values at those sites were 7.2, 6.8, and 7.3 respectively. See attachment number eight for the site map. The next step was to sample the soil in the area of the Sulfuric Acid tank to determine where more soil should he removed. The soil was sampled at seven locations. Please reference attachment number one. The data for the sites is referenced on attachment