Laserfiche WebLink
l <br />Geo -Logi <br />c <br />A S S O C I AT E S <br />Geologists, Hydrogeologists and Engineers <br />October 12, 2017 <br />JN: 5017.1030 <br />Mr. Brendan Kenny <br />Central Valley Regional Water Quality Control Board <br />11020 Sun Center Drive, Suite 200 <br />Rancho Cordova, CA 95670-6114 <br />GROUNDWATER TREATMENT FACILITY MONITORING REPORT <br />THIRD QUARTER 2017 <br />FORWARD LANDFILL <br />SAN JOAQUIN, CALIFORNIA <br />INTRODUCTION <br />On behalf of Forward Inc. (Forward), Geo -Logic Associates (GLA) is submitting this summary <br />report for the Forward Landfill groundwater treatment facility (GTF) to fulfill the <br />requirements established by Waste Discharge Requirements (WDRs) Order No. R5-2003- <br />0080. <br />The Forward Landfill is an active facility located at 9999 South Austin Road in Manteca, <br />California. Following detection of volatile organic compounds (VOCs) in groundwater, a <br />Corrective Action Program (CAP) was implemented at the site in 1994, which currently <br />includes five groundwater extraction wells (EW -1, EW -2, EW -3, EW -3R, and EW -4) that <br />pump groundwater through an air stripper treatment system to remove VOCs. Treated <br />groundwater is discharged to an infiltration pond north of the Austin Road Unit of the <br />Forward Landfill. Due to limited recharge in extraction well EW -3, the well was taken offline <br />and replaced with extraction well EW -3R. To increase the volume of groundwater <br />recovered in this area, well EW -3R was installed adjacent to and deeper than well EW -3. <br />Included herein is a summary of the water quality monitoring results for the GTF at the <br />Forward Landfill for the third quarter 2017. <br />CAP MONITORING PROGRAM RESULTS <br />Under WDR Order No. 115-2003-0080, effluent monitoring consists of monthly analysis of <br />pH, specific conductance (EC), and VOCs; quarterly analysis for total dissolved solids (TDS); <br />and annual analysis of 24 metals. In addition, influent is monitored semiannually for pH, EC, <br />turbidity, and VOCs. Del -Tech Geotechnical Support Services (Del -Tech) performs the <br />operation and maintenance (O&M) duties and performs bimonthly inspections for the <br />Forward Landfill GTF. The results of the bimonthly inspections are presented below and <br />summarized in Table 1. The field monitoring logs and laboratory results are attached. <br />11415 W. Bernardo Court, Suite 200, San Diego, California • T 858.451.1136 • F 858.451.1087 • www.geo-logic.com <br />l <br />