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Ozone Injection Pilot Study Work Plan <br /> GEWEKE PROPERTY <br /> 16 South Cherokee Lane, Lodi, California <br /> 1.0. INTRODUCTION <br /> At the request of Mr -Dale Gillespie of G-REM, Advanced GeoEnvironmental, Inc (AGE) has <br /> prepared this Ozone Infection Pilot Study Work Plan for the property located at 16 South Cherokee <br /> Lane, Lodi, California (site) and the surrounding area The location of the site is illustrated on <br /> Figure 1 A site plan is illustrated on Figure 2 <br /> In a letter dated 30 October 2003, the Central Valley Regional Water Quality Control Board <br /> (CVRWQCB) concurred with AGE's recommendations for implementation of an ozone infection <br /> well pilot study for the area of the highest concentrations of dissolved hydrocarbons-near the former <br /> dispenser island and monitoring well MW-14 This work plan details the scope of work for ozone <br /> infection well installation, system installation and system monitoring for up to six months <br /> This work plan is prepared in accordance with Cleanup and Abatement (C&A) Order No 93-701 <br /> and is in accordance with Central Valley Regional Water Quality Control Board (CVRWQCB) <br /> guidelines for the investigation of underground storage tanks (UST) sites <br /> 2.0. BACKGROUND <br /> In 1985,two 10,000-gallon,one 6,000-gallon and one 1,000-gallon underground storage tank(UST) <br /> were removed from the site No samples were collected from the tank excavation In October 1985, <br /> San Joaquin County required G-REM to conduct a site investigation of suspected leakage from the <br /> 1,000-gallon waste oil tank <br /> Between 1986 and 2002, thirty-two soil borings, seven vapor extraction wells, one ground water <br /> extraction well and nineteen ground water monitoring wells were installed on and near the site <br /> Ground water monitoring was conducted at the site by Kleinfelder in 1985, Brown and Caldwell <br /> from February 1986 to July 1990,PES Environmental Inc and Blaine Tech Services,Inc from May <br /> 1991 to September 1991,Sun Tech Environmental Inc from December 1991 to July 1993,Geologic <br /> Audit Services, Inc (GeoAudit) from September 1993 to September 1994 and AGE from March <br /> 1995 to the present <br /> A Problem Assessment Report(PAR)was prepared by PES Environmental Inc and submitted to the <br /> CVRWQCB in July 1991 A Final Remediation PIan (FRP) was prepared by GeoAudit and <br /> submitted to the CVRWQCB in July 1993 <br /> In December 1993,a low pressure blower was installed and connected to the seven vapor wells and <br /> four monitoring wells to introduce an oxygen source (air) in preparation to innoculate wells with <br /> hydrocarbon-consuming bacteria In August 1994, in-situ bioremediation began at the site by <br /> AdvancedGeoEnvironmental,Inc <br />