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First Quarter 2007 Groundwater Treatment <br /> Facility Monitoring Report <br /> Forward Landfill WDR Order No. R5-2003-0080 <br /> 1.0 Summary <br /> This First Quarter 2007 Monitoring Report for the Forward Incorporated (Forward) Landfill <br /> Groundwater Treatment Facility (GTF)presents the monitoring results for influent and <br /> effluent.This report was prepared as stipulated by the Central Valley Regional Water <br /> Quality Control Board (CV Water Board) Waste Discharge Requirements (WDR) Order <br /> No. R5-2003-0080,which was adopted on April 25, 2001 <br /> Following review of the information presented in this document,the following conclusions <br /> have been made: <br /> ® The GTF operated for 2,189 hours between December 27,2006,and March 31,2007,at <br /> 96.4 percent uptime, and treated 25.378 million gallons of groundwater. During this <br /> period, the GTF removed approximately 3.1 pounds of volatile organic compounds <br /> 1 (VOC). <br /> • During first quarter 2007, effluent samples collected in January,February,and March <br /> met WDR Order No. R5-2003-0080 for VOCs. No VOCs were detected. <br /> • An apparent leak in the buried groundwater conveyance pipeline was repaired on <br /> January 9,2007. The leak was located approximately 400 to 450 feet east of Extraction <br /> Well (EW)-2. EW-2 was restarted on January 11,2007. <br /> • A leak occurred inside the pipe vault adjacent to EW-2 on March 21,2007.EW-2 was <br /> turned off and the pipeline between EW-1 and EW-2 was isolated on March 21,2007,to <br /> prevent further leaks.The leak was caused by a cracked check valve inside the vault. <br /> Repairs to the piping inside the vault are scheduled for the week of April 2,2007. <br /> 2.0 Operational Summary <br /> The GTF operated for 2,189 hours between December 27, 2006,and March 31, 2007, at <br /> 96.4 percent uptime, and treated 25.378 million gallons of groundwater at an average flow <br /> rate of 193 gallons per minute, or 0.278 million gallon per day. During this period,the GTF <br /> removed approximately 3.1 pounds of VOCs. Table 1 presents the monthly average effluent <br /> flow rates in gallons per day. <br /> i <br /> RDDl071060007(NLH3445.DOC) i <br />