Laserfiche WebLink
MW-3A (Directly Down-Gradient <br /> Concentrations of all the parameters analyzed were within established concentration limits where <br /> limits could be determined this semester (Table 1). <br /> No VOCs were detected during the second semester 2013 sampling event conducted on August <br /> 21, 2013. <br /> MW-4A <br /> Concentrations of all the parameters analyzed were within established concentration limits where <br /> limits could be determined this semester(Table 1). <br /> Two VOCs (PCE and Trans-1,2-Dichloroethene) were detected in MW-4A during the second <br /> semester 2013 sampling event conducted on August 21, 2013. <br /> 21 ppb trans-1,2-Dichloroethene was reported in this well this semester. However, this <br /> compound had not been reported previously at any concentration. This reported concentration is <br /> obviously an anomaly, not representing the concentration in the groundwater. <br /> MW-5 <br /> Concentrations of all the parameters analyzed were within established concentration limits where <br /> limits could be determined this semester (Table 1). <br /> A trace concentration of PCE and above trace concentration of CFC-12below 1.0 ppb were <br /> reported in MW-5 during the second semester 2013 sampling event. <br /> MW-5 was installed between the sewage treatment ponds of the migrant labor camp and the <br /> "Secondary Landfill" portion of the site. The purpose of this well is to determine if the treatment <br /> ponds were contributing constituents to groundwater. MW-5 is upgradient of the "Landfill 2 <br /> (commonly called the "Secondary Site)and represents background water quality conditions. <br /> MW-6 <br /> No general water quality parameter concentration limits were exceeded during the second <br /> semester 2013 sampling event. <br /> No VOCs were detected in MW-6 during the second semester 2013 sampling event. <br /> MW-6 was installed upgradient of the treatment ponds to serve as a background well for the site, <br /> especially to address RWQCB staff concerns regarding increased alkalinity due to landfill gas. <br /> MW-6, like MW-1 is upgradient of the landfill. <br /> Hamey Lane Sanitary Landfill 7 Department of Public Works/Solid Waste <br /> 2n'Semester and Annual 2013 Groundwater Monitoring Report County of San Joaquin—January 31,2014 <br />