Laserfiche WebLink
Metadata
Document management portal powered by Laserfiche WebLink 9 © 1998-2015 Laserfiche. All rights reserved.
Quarterly Report - Third Quarter 2002 <br /> i Y P , <br /> WELDON CHURCH PROPERTY <br /> I104,West Beverly Place, Tracy, California <br /> I1.0'. INTRODUCTION <br /> At-the request of Mr. Weldon Church,Advanced GeoEnvironmental,.Inc.I(AGE) has prepared this <br /> quarterly ground water monitoring report'for the site at 104 West Beverly Place, Tracy, California <br /> (the site). The scope of work included monitoring and sampling eight wells and preparation of this <br /> report. The site setting is illustrated on Figure 1. Locations of structures, borings and monitoring <br /> wells related to the site are illustrated on Figure 2. <br /> Site history and findings from previous investigations and previous monitoring events at the site are <br /> detailed in Preliminary Investigation and Evaluation Report September 1996 (PIER), dated <br /> 10 September 1996, and Ground Water Monitoring Report-First Quarter 2000, dated 09 August <br /> 2000, both prepared by AGE. <br /> 2.0. PROCEDURES <br /> The September 2002 monitoring event was performed in accordance with Central Valley Regional <br /> .. Water Quality Control Board (CVRWQCB) and San Joaquin County Environmental Health <br /> Department (EHD) guidelines for investigation of underground storage tank (UST) sites'and for <br /> sampling ground water monitoring wells, respectively. <br /> 2.1. WELL MONITORING AND EVACUATION <br /> r <br /> On 24 September 2002, a Solmst water level meter was used to measure the depth p to ground water <br /> in,ground water monitoring wells MW-1 through MW-7 relative to the top ofthe well casing. After <br />' ground water depth measurements were collected,each measured monitoring well was purged using <br /> a new disposable plastic bailer. Between 3 and 9'gallons of water were evacuated from each <br /> monitoring well, a minimum of three casing-water volumes per well. <br /> Temperature, pH and conductivity were measured at 1- to 2-gallon intervals, as appropriate, using <br /> an Oakton water analyzer to monitor stabilization of these ground water parameters. Field data logs <br />' are included in Appendix A. Purged water was temporarily stored on-site in 55-gallon <br /> DOT-approved H-17 storage drums pending proper disposal. <br /> 2.2. COLLECTION AND ANALYSIS OF GROUND WATER SAMPLES <br />' Water samples were collected from monitoring wells MW-1 through MW-7 using new disposable' <br /> bailers, The samples were transferred into 40-m1 EPA-approved vials containing 0.5 .m1 18% <br /> I, Advanced GcoEnvironmental,Inc. <br />