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Brendan Kenny <br />Central Valley Regional Water Quality Control Board <br />October 15, 2025 <br />www.arcadis.com <br />Forward Landfill 3Q25 CAP Update <br />4/4 <br /> Flare FL-150 had a total runtime of 727.5 hours and a total downtime of 16.5 hours in July 2025, a total <br />runtime of 699.42 hours and downtime of 44.6 hours in August 2025, and a total run of 720 hours and no <br />down time in September 2025. Flare Fl-150 recorded a maximum adjusted flow rate of 2,727 scfm. <br />Geosyntec’s Third Quarter 2025 Corrective Action Program Update concluded that the data collected by SCS <br />during the reporting period met the CAO requirements for the operation and maintenance of the landfill GCCS. <br />Closing <br />Arcadis will continue to monitor the Site’s GWTS, the residential GWTSs, and the facility’s landfill GCCS. Program <br />updates will be submitted to the Water Board by the required due dates. <br />If you have any questions or need additional information, please contact Dalia Rumani at 626-991-7597. <br /> <br />Sincerely, <br />Arcadis U.S., Inc. <br /> <br /> <br /> <br /> <br /> <br /> <br />Dalia Rumani, William Semel, PE <br />Project Manager Principal Engineer <br />California Professional Engineer #C-82542 <br /> <br /> <br /> <br />CC. Osvaldo Cordero, Forward, Inc. <br /> <br />Enclosures: <br />Attachment 1 Groundwater Treatment System Monitoring Logs <br />Attachment 2 Quarterly Correction Action Program Update – Landfill Gas Collection and Control <br />System