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r I ' Quarterly Report - Third Quarter 2000 MOORE TRUCK'LINES 3400 Newton Road Stockton, California I , 1..0. INTRODUCTION ' At the request of Mr Weilburg of Moore Truck Lines,Advanced GeoEnvironmental, Inc (AGE)has prepared this quarterly report for the site at 3400 Newton Road, Stockton, California The scope of ' work included monitoring and sampling ground water monitoring well (MW-1) and sampling one domestic well (DW-1) for the petroleum hydrocarbons and fuel oxygenates Monitoring well MW-1 was utilized for monitoring petroleum hydrocarbon-impact and MTBF-impact to ground water' ' associated with an unauthorized release of petroleum hydrocarbons from USTs formerly located near the truck maintenance and repair shop building Domestic well DW-1 is utilized for on-site water and is the closest potential sensitive receptor, located approximately 145 feet away from the farmer ' under ground storage tank (UST) area DW-1 has been located down- to cross-gradient from the former UST area during the last three morntoring events The preparation of this report was required ' by the San Joaquin County Public Health Services-Environmental Health Division (PHS-EHD) to document and update site status The site setting is illustrated on Figure 1 Locations of structures, borings, domestic wells, and the monitoring well on the site are illustrated on Figure 2 Locations of structures and monitoring wells on adjacent sites are illustrated on Figure 3 Site history and findings from previous investigations at the site are detailed in the AGE-prepared ' Preliminary Investigation and Evaluation Report(PIER), dated 15 September 1999 ' 2.0. PROCEDURES The work was performed in accordance with San Joaquin County PHS-EHD and Central Valley ' Regional Water Quality Control Board guidelines for investigation of underground storage tank (UST) sites ' 2 1 MONITORING WELL PURGE PROCEDURES On 27 September 2000, a Sohnst water level meter was used to measure the depth to ground water to monitoring well MW-1 relative to the top of the well casing (well head) After the ground water I depth measurement was collected, monitoring well MW-1 was purged using a polyvinylchlonde (PVC)bailer The well was purged dry prior to sampling Approximately 2 5 gallons of water were evacuated from the monitoring well, equivalent to more than three casing water volumes Temperature, pH and conductivity were measured at 1-gallon intervals using a Hydac water analyzer to monitor stabilization of these ground water parameters The field data are tabulated and are included in Appendix A Purged water is temporarily being stored on-site in 55-gallon drums Advanced GeoEnvironmentai,[nc I