COMPLIANCE INFO_2023 CVRWQCB WASTER DISCHARGE REQUIREMENTS

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DRAFT [TENTATIVE] WASTE DISCHARGE REQUIREMENTS ORDER R5-2023-00XX 20 FORWARD, INC. FORWARD LANDFILL SAN JOAQUIN COUNTY c.Implementation of a groundwater artificial recharge system using treated water; d.Additional groundwater monitoring wells to monitor the effectiveness of the corrective action and determination of the need for modifications; and e.Install an interim cover on Austin Road Landfill Unit 1. 57.In 2008, chlorinated solvents including tetrachloroethylene and trichloroethylene were detected in water supply wells at the California Department of Corrections and Rehabilitation (CDCR) facility, located north of the Facility. On 8 December 2008, the Executive Officer issued Cleanup and Abatement Order (CAO) R5- 2008-0714 (2008 CAO). The 2008 CAO required the Discharger to define the lateral and vertical extent of groundwater impacts downgradient of the landfill, provide an alternate source of drinking water to any landowner with a municipal or domestic well that had a confirmed detection of VOCs, implement source control to prevent VOCs from migrating past the landfill point of compliance, enhance the Facility’s landfill gas and groundwater monitoring programs, and submit quarterly progress reports. 58.The Discharger began its efforts to comply with the 2008 CAO by addressing the requirement to provide replacement water for the CDCR facility. This was done by extending the City of Stockton’s drinking water supply line to the facility. The Discharger also began supplying replacement water to two households near the landfill. The Discharger implemented an evaluation monitoring program in which numerous wells were installed; however, none of the wells were at the downgradient edge of the plume, nor did the Discharger continuously monitor these wells. With regard to source control and remedial actions, the Discharger installed an additional groundwater extraction well and multiple LFG extraction wells between 2008 and 2011. 59.On 10 April 2017, CAO R5-2008-0714 was rescinded, except for enforcement purposes, and replaced by CAO R5-2017-0703, which requires the Discharger to conduct additional investigations to delineate the vertical and lateral extent of the VOC release from the landfill, install corrective action systems to control and capture the migration of contaminants, enhance the groundwater treatment system, and address violations associated with over-loading of nitrogen in the cannery waste LAA (see Finding 98 for additional information). Compliance with CAO R5-2017-0703 is ongoing. The Discharger has yet to implement the interim and final corrective action measures required by the CAO. To protect the community with domestic wells in or near the current defined limit of the plume, the Discharger is required to sample residential domestic supply wells for VOCs. See Table 3 and Attachment H for residential domestic wells included in the sampling program.