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07/21/85 FI 14:19 FAX 12094973539 POSEF POWER 003 <br /> Response stud Cleanup of Sulfuric Acid Spill <br /> POSIDEF Power Company,L.P. <br /> 2526 W.Wasbhk&tom St <br /> Stocklon,CA.95203 <br /> Page 2 of 5 <br /> co—CC Qf Evenin <br /> Sunday. July 16, 1995,3;30 a.m.,we discovered a relatively small leak fromour acid <br /> transfer system. we investigated a problem we discovered that acid may have been <br /> slowly leaking as early as 12:30 p.m.,after an acid delivery,on Friday,Juiy 14, 1995, <br /> from a Mmsfer pipe to the gravel surrounding id bermed area. Immediately er <br /> discovery POSDEF ok steps to prevent release of acid and to notify the <br /> appropriate public agenciesEricson Environmental C'Ericson7)was simultaneously <br /> engaged to help in our containment and cleanup efforts of the acid and affected soil. At <br /> or about 6:00 a.m. and in s o to our notification,Stockton Fire and the Port of <br /> Stockton Police ved to assess'the situation. After observing efforts g <br /> their own notifications St kion Fire extracted a grab sample from the sulfuric acid <br /> system for their records. Within a short time Stockton Fire decided that we had the <br /> situation under control and decided to leave. By am.the spill was contained <br /> efforts to minimize a spreading of acid to groundwere in ess. POSDEF <br /> repairs to the system after Ericson drained acidm our storage tank into Ericson's <br /> track.tanker After repairs,the acid was returned to our sulfuricid storage tank. <br /> Ericson remained on site throughout the day helping site assessment and general <br /> cleanup of any free liquid acid. All free liquid ve . <br /> MmdayjubL17,1995,POSDEF engaged c Services C J-:)to undertake <br /> independent sampling on site and direct Ericsonin soil removal. Any soil in e spill area <br /> with a pH less than 6 was then removed to an Ericson hazardous waste roll off bin for <br /> temporary storage,before removal to an authorized i landfill. Ericson and <br /> JL worked through the day until the majority of the contaminated soil was removed. <br /> Harlinoll, E. .S. of San Joaquin n ' en visited the plant to oversee <br /> e <br />