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i CHRONOLOGY <br /> 8750 S. ELDORADO <br /> LOP SITE CODE: 1843 <br /> CVRWQCB LUSTIS CASE: 390332 <br /> APN: 193-140-01 <br /> 08/29/89 Five USTs were removed under EHD permit and inspection. The USTs were <br /> installed in 1963 and taken out of service in 1985. The tanks stored gasoline, <br /> diesel and waste oil. Soil samples were collected for analyses from beneath the <br /> tanks and under the removed product lines and dispensers. <br /> 09/19/89 The laboratory report results for the soil samples analyzed evidenced low <br /> concentrations of TEPH{Diesel) and Toluene; the highest concentrations <br /> were 76 ppm and .005 ppm respectively. <br /> 09/28/89 Due to the positive results for diesel,EHD completed and filed an <br /> Unauthorized Release Report. <br /> 06/19/96 EHD placed the site in the L:O.P. requiring further site assessment. <br /> 07/18/01 After several meetings with Philip Lehrman,EHD sent a letter to him <br /> requiring additional site assessment and MTBE analysis. <br /> 09/20/01 EHD received a Work Plan (WP)prepared by AGE for additional site <br /> assessment. <br /> 10/11/01 EHD completed WP review and issued a permit for GeoProbe soil and x <br /> groundwater sampling. <br /> 03/05/02 AGE performed soil and groundwater sampling under EHD inspection. <br /> 04/23/02 AGE submitted a PIER which included laboratory results for soil and <br /> groundwater samples collected on 03/05/02. <br /> �h <br /> 05/07/02 EHD completed the PIER review. ,All soil and groundwater samples were <br /> ND for all diesel and gasoline constituents including MTBE. <br /> 05/08/02 The Case Closure Summary and the site`chrotiology were completed. The <br /> site was referred to CVRWQCB for closure concurrence. <br /> HVchronalliance <br /> 1 <br /> i <br />