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<br /> <br /> <br /> <br /> <br />9999 S. Austin Road <br />Manteca, CA 95336 <br />P: (209) 982-4298 <br />F: (209) 982-1009 <br /> <br />DOMESTIC WELL SAMPLING PROGRAM <br />FORWARD LANDFILL <br />SAN JOAQUIN COUNTY, CALIFORNIA <br /> <br />SUBMITTED TO: <br />Ms. Bonnie Pilcher <br />6562 Santa Ana Way <br />Stockton, CA 95215 <br /> <br />SUBJECT: <br />Results of Well Monitoring <br /> <br />DATE: <br />October 31, 2023 <br /> <br />INTRODUCTION <br /> <br />Arcadis U.S. Inc. (AUS) prepared this letter report on behalf of Forward, Incorporated (Forward) to <br />summarize water quality monitoring results for samples collected from the well used to supply <br />groundwater for the property located at 6562 Santa Ana Way, Stockton, CA 95215 (Figure 1). The <br />samples were collected as part of the domestic well sampling program being performed under the <br />direction of the Central Valley Regional Water Quality Control Board (CVRWQCB) of the State Water <br />Resources Control Board to better understand the groundwater quality in the area and help <br />evaluate the progress of an on-going groundwater investigation for the Forward Landfill. <br /> <br />As you may know, Forward acquired the City of Stockton’s landfill in 2000. As a condition of that <br />acquisition, Forward agreed to address existing and potential groundwater contamination caused by <br />the City’s landfill operations, which go back to 1954. Since that acquisition, Forward has been <br />working cooperatively with the CVRWQCB on groundwater investigations and to control and reduce <br />identified volatile organic compounds associated with the landfill. Together, Forward and the <br />CVRWQCB continue to proactively monitor and sample groundwater wells at several residential <br />properties located near the landfill. <br /> <br />SAMPLING AND ANALYSIS <br /> <br />On September 18, 2023, a representative of Forward visited the property at the address identified <br />above and received permission from you to participate in the domestic well sampling program. After <br />receiving permission, a groundwater sample was collected from the sample port next to the well. <br />The well sampling data sheet and laboratory report are attached. <br /> <br />Approximately 70 gallons of water were discharged from the sample point prior to collecting the <br />groundwater sample. Before collecting the sample, the temperature, pH, and conductivity of the <br />groundwater were measured and recorded on the well sampling data sheet. After these parameters <br />were measured, a sample was collected for laboratory analysis to test whether volatile organic