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FORWARD Man S.Austin Road Manteca,CA 95336 Landfill P:(209)982-4298 F:(209)982-10091009 Brendan Kenny Engineering Geologist Central Valley Regional Water Quality Control Board 11020 Sun Center Drive,Suite 200 Rancho Cordova,CA 95670 May 1, 2026 RE: Quarterly Monitoring Report—First Quarter 2026 Forward Landfill,9999 South Austin Road,San Joaquin County,California Dear Brendan: Forward, Inc. (Forward) is pleased to submit this Quarterly Monitoring Report—First Quarter 2026 for the Forward Landfill, in accordance with the Monitoring and Reporting Program (MRP) specified in the Forward Landfill Waste Discharge Requirements set forth in the Central Valley Regional Water Quality Control Board (RWQCB) Order No. R5-2024-0002 (Order). During the first quarter 2026 monitoring period, the Forward Landfill Operations Manager reported that standard observations were conducted weekly and no surface water was discharged from the facility.Surface water samples were collected from two(ASW-1 and ASW-2)surface water monitoring stations. For the unsaturated-zone monitoring stations, two suction lysimeters (LY-A and LY-Pond-N) contained sufficient liquid to collect a sample for analysis of volatile organic compounds (VOCs), and one suction lysimeter (LY-A) had sufficient volume to analyze for 1,2,3-trichloropropane. VOCs were detected at concentrations exceeding the applicable method detection limits (MDLs) or practical quantitation limits at one instance (LY-A). The remaining unsaturated zone monitoring stations were either dry or had insufficient water for sample collection. No Notice of Violations(NOVs)were issued by the RWQCB during first quarter 2026. No NOVs were issued by the San Joaquin County Environmental Health Department (SJCEHD) during first quarter 2026.Three site inspections were conducted by the SJCEHD in first quarter 2026: • During the January 23,2026 inspection, no NOVs or areas of concern were noted. • During the February 12, 2026 inspection, no NOVs or areas of concern were noted. • During the March 23, 2026 inspection, no NOVs were noted.SJCEHD noted one area of concern regarding erosion channels observed on WMU-08 and surrounding area. Corrective actions were completed and noted in the inspection report. In addition to the NOVs issued by the SJCEHD,any non-statistical exceedances(VOC detections above MDLs)as well as exceedances of the concentration limits are considered violations of the Order.Forward submitted an Exceedance of Concentration Limits letter on April 30,2026,to document and address any exceedances at the Forward Landfill. In first quarter 2026,a total of 66 wells reported one or more VOCs exceeding their respective practical quantitation limits, with well 7833-MW-03 exhibiting the highest detection of any single VOC concentration, and CDCR-EW-04 exhibiting the highest total VOC concentrations. Non-statistical exceedances did occur at one program detection or upgradient well, MW-13A (MRP Table 1), meaning VOCs were detected above their respective MDLs at MW-13A. There was one exceedance above the concentration limits for inorganic parameters at detection and upgradient program monitoring well MW-26. (209)601-2274(o) ocordero@republicservices.com