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Stephani Gisi <br /> Central Valley Regional Water Quality Control Board <br /> July 7, 2023 <br /> events have been conducted and the domestic wells at all 47 residences have no detections of volatile organic <br /> compounds (VOCs) above the practical quantitation limit, not including suspected lab contaminants. <br /> Additionally, Forward has installed and continues to sample monitoring wells located between the landfill and the <br /> domestic wells that have not been impacted by VOCs. The monitoring wells provide an early detection system for <br /> the domestic wells to protect against the potential of plume migration in the future. For example, monitoring wells <br /> AMW-36 and AMW-36S are located between Forward and the residential wells on Sunny Road, while AMW-33 <br /> and AMW-33S provide protection for the residential wells on Arch Road and CA-99, and AMW-35 and AMW-35S <br /> for the residential wells on Santa Ana Way, Mariposa Road, Kaiser Road, and Jack Tone Road. <br /> There are 16 wells located on Austin Road and Newcastle Road that should remain in the Domestic Well <br /> Sampling and Analysis Program. All these residents have been provided residential groundwater treatments <br /> systems (constructed in 2019)or city water connections in addition to bottled water service. Sampling of these <br /> wells would continue to be conducted on a first quarter/third quarter semi-annual schedule and reported semi- <br /> annually, as directed by CAO R5-2017-0703. If these wells are to be incorporated into the WDR, Forward <br /> requests the same monitoring requirements be carried over from the CAO, which includes semi-annual sampling <br /> and the preparation of individual domestic sampling reports on a semi-annual bases (due dates of April 30 and <br /> October 30). <br /> If you have questions or comments regarding the above information, please contact me at (650) 713-3632. Our <br /> team is available for a virtual meeting next week if you'd like to discuss the comments presented in Table 1. <br /> Kindest regards, <br /> r <br /> Ben Wade <br /> Area Environmental Manager <br /> West Area <br /> CC. Brad Shelton, CVRWQCB <br /> Drew Feucht, Arcadis <br /> Aaron Hook, Arcadis <br /> Sangeeta Lewis, Lewis Engineering <br /> Enclosures: <br /> Tables 1 and 2 <br /> Figures 1 and 2 <br /> 2/2 <br />