ARCHIVED REPORTS_XR0010152 - Laserfiche WebLink

Home Browse Search

I • Ground Water Monitoring Report - Fourth Quarter 2001 Former Fisco Warehouse (Howard Lenz Property) 1648 Shaw Road, Stockton, California 10. INTRODUCTION At the request of Mr Peter Lenz of Innovative Beverage Brokers,Advanced GeoEnvironmental,Inc (AGE) has prepared this quarterly report for the property located at 1648 Shaw Road, Stockton, California The site and the surrounding area are illustrated in Figure 1 Structures, boring and well Ilocations are illustrated on Figure 2 Background information is summarized in Preliminary Site Investigation Report, dated 30 December 1997, prepared by AGE 2.0. PROCEDURES IField work was performed in accordance with San. Joaquin County Public Health Services - Environmental Health Division's (PHS-EHD) guidelines for the sampling of ground water monitoring wells and Regional Water Quality Control Board(RWQCB)guidelines for investigation of underground storage tank (UST) sites 10 2 1 WELL MONITORING AND EVACUATION Ground water sampling of MW4 through MW7 was conducted on 06 November 2001 Monitoring wells MW 1, MW2 and MW3 could not be purged or sampled due to the absence of standing water in the well casings A Solinst water level meter was used to measure the depth to ground water in the four wells relative to the tops of the well casings The ground water elevations and gradient were determined from these data (Table 1) fAfter recording water level measurements, disposable plastic bailers were used to purge monitoring wells MW4 through MW7 of standing water Approximately 133 to 2 50 gallons of water(minimum of 3 casing-water volumes) were removed from MW4 through MW7 Ground water temperature, pH and conductivity were measured at regular intervals during purging using an ICM water analyzer Field sheets and data are included in Appendix A Purged water was stored on-site in labeled, I55-gallon DOT-approved drums 22 COLLECTION OF GROUND WATER SAMPLES Water samples were collected from each purged well using new disposable plastic bailers Each Iwater sample was transferred into three 40-m1 VOA vials containing 0 5 rnl 18%hydrochloric acid • as a sample preservative and into one 1-liter amber bottle without added preservative After collection, the samples were properly labeled, placed in a chilled container and transported under I Advanced GeoEnveronmental,inL