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CHRONOLOGY <br /> EAST BAY MUNICIPAL UTILITY DISTRICT <br /> STOCKTON SERVICE CENTER <br /> 1804 WEST MAIN STREET <br /> SITE CODE: 1169 <br /> APN: 145-050-27 <br /> 7-97 <br /> Two 1000 gallon UST's were removed from the site. One diesel, one regular fuel. Contaminants as TPH- <br /> Gas and BTX were confirmed as a result of soil sampling in the Regular UST pit. The Diesel UST pit was <br /> clean. <br /> j <br /> 5-97 <br /> Kleinfelder Consulting submits a soil and groundwater assessment workplan to PHS/EHD. Kleinfelder <br /> install three groundwater monitoring wells. { <br /> 9-89 <br /> Two additional 1000 gallon UST's were removed from the site. One diesel, one regular fuel. i <br /> Contaminants as TPH-Gas and BTX were confirmed as a result of soil sampling in the regular fuel UST i <br /> pit. The diesel fuel UST pit was clean. Preliminary site assessment performed by Kleinfelder. <br /> 2-91 <br /> Weston performs quarterly groundwater monitoring event activities(QME)and installs four additional <br /> wells. <br /> 7-92 <br /> Weston conducts 2"d quarter 1992 QME. <br /> 10-92 <br /> Weston conducts 3`d quarter 1992 QME. <br /> 3-93 1 <br /> Weston conducts I"quarter 1993 QME. <br /> 5-93 <br /> Weston conducts 2"d quarter 1993 QME. <br /> i <br /> 9-93 <br /> Black&Veatch conducts additional asssessment activities,installs two wells and collects seven <br /> HydroPunch 11 groundwater samples. <br /> 9-93 <br /> I <br /> Black&Veatch conducts 3 quarter 1993 QME. J <br /> i <br /> 12-93 <br /> Black&Veatch conducts 4d'quarter 1993 QME. <br /> 2-94 <br /> Black&Veatch conducts I" quarter 1994 QME. <br /> 5/6-94 <br /> Black&Veatch conducts 2"d quarter 1994 QME. <br /> i <br />