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South San Joaquin Irrigation District DRAFT Lead Assessment&Abatement Work Plan April 9, 2017 According to the ESC webpage, the ESC was established in 1947 and offers a variety of activities, including trap shooting. On February 1, 2017, the SJCEHD issued a Waste Discharge/Spill Response Notice ("Notice") to Abate to SSJID. Refer to Appendix A. The Notice states that lead from the ESC is polluting nearby orchards and the Canal and lists the following corrective actions: • Immediately contain, clean-up and dispose of waste at an authorized, permitted location. Ensure that cleanup personnel possess adequate training. • Investigate and abate contamination under the oversight of the appropriate lead agency • Submit copies of hazardous waste manifests/disposal records to the SJCEHD within 30 days. On February 27, 2017, representatives of SSJID and SJCEHD met to present a Draft Interim Lead Assessment and Abatement Workplan. Because of the need for its customers to receive irrigation water for the upcoming growing season, SSJID expressed the need to deliver water in the canal starting in March and ending in October. Once the irrigation season has ended, assessment and abatement of the lead would commence with the goal of completion prior to the beginning of the 2018 irrigation season. During the meeting, SJCEHD stated that SSJID can participate in the SJCEHD Voluntary Cleanup Program (VCP) to perform assessment and abatement. SJCED supplied the VCP and Service Request forms to SSJID and suggested that SSJID complete and submit the Service Request form so that SJCEHD can review a revised workplan. On March 15, 2017, SSJID sent the completed VCP and Service Request forms to SJCEHD to begin the assessment and abatement workplan review process. 2.0 Impact of Lead Pellets on Canal Water Quality In order to assess the potential impact to water quality as a result of lead pellets remaining in the canal during the irrigation season, the following analysis was done. The area of impacted canal site was divided into 3 sections: North Bank + Road, Canal Bottom, and South Bank + Road. Refer to Figures 3 and 4. Page 5 Blankinship & Associates , Inc .