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i • Quarterly Report - First Quarter 2003 FERNANDO'S PLACE i f 1201 South Center Street, Stockton, California ' x 10 INTRODUCTION I , 1 v `At the request of Mr Roger Huck>ns,Advanced GeoEnvironmental, Inc (AGE) has prepared this 1 ri quarterly ground water monitoring report for the property located at 1201 South Center Street, Stockton,California(site) The scope ofwork included monitoring and sampling the nine monitonng Iwells on and off-site and preparation of this report The location of the site is illustrated in Figure 1 Locations of structures;borings and monitoring wells related to the site are illustrated in Figure 2 Site background information is provided in Appendix A 2.0. PROCEDURES 1 " r The February 2003 rnomtoring event was performed in accordance with Central Valley Regional Water Quality Control Board (CVRWQCB) and San Joaquin County Environmental Health ' Department (EHD) guidelines for investigation of underground storage tank (UST) sites and for sampling ground water monitoring wells, respectively 3 21 WELL MONITORING AND EVACUATION On 17 and 18 February 2003, ground water monitoring and sampling was performed at 31 ground ' water monitoring wells (MW-1 throughA coordinated effort was made with Arc Pump MW-9D) and Welding(1211 Turnpike Road)to conduct ground water monitoring activit>es concurrently,the ' Arc Pump and Welding depth to water results are included iii Table 1 On 17 February 2003, a Solinst water level meter was used tomeasurethe depth to water in all the + ' wells to the nearest 0 01 foot, relative to the top of the well casing Between 17 and 18'February 2003, approximately 6 5 to 45 gallons of ground water(a minimum of three casing-water volumes' ' a per,,well)were evacuated (purged) from single-level wells MW-1,MW-2A, MW-2B, MW-,3A and ' MW-3B utilizing disposable polyethylene bailers or a two-stage pump Multi-level monitoring wells MW-4 through MW-9 'were;purged,utilizing a Watera inertial pump !Approximately 0 40 to 6 ' gallons of ground water(a minimum of three casing-water volumes per well)were purged from the ` multi-level monitoring wells ' Temperature,pH and conductivity were measured for stabilization at regular purge-volume intervals from each well using an Oakton water analyzer Field data and`logs are provided in Appendix B Purged water was temporarily stored on-site,in 55-gallon DOT-approved'H=17 storage drums ' pending proper disposal - 1 i1 I II Advanced GeoEnvironmental,Inc I 1 II ,' ( I I