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- i SAN JOAQUIN COUNTY ".� ENVIRONMENTAL HEALTH DEPARTMENT 1868 East Hazelton Street, Stockton, CA 95205 FaRN Telephone (209)468-3420 Fax(209)464-0138 �r-�&K ate). December 22, 2016 �5wt To: San Joaquin County Community Development Department Attention: Megan Aguirre From: Ted Tasiopoulos; (209) 953-7698 Senior Registered Environmental Health Specialis RE: PA-1600212 (UP), 2nd Revision, S00011068 920 W. Frewert Rd., Lathrop The San Joaquin County Development Title Requirements listed below have been identified as pertinent to this project. Other requirements may also apply. These requirements cannot be modified. A. Solid Waste Facility Permit, Report of Compost Site Information (RCSI), and Odor Impact Management Plan (GIMP) will require revision to account for changes in operation including tonnage, accepted wastes, vehicle counts, and facility size. B. Track-out and drag-out has been an issue at this facility. To address this issue, all interior roads will need to be constructed of asphalt or concrete except in active composting areas with tumble strips near the exit of the facility. As an alternative to this requirement, facility may provide an engineered, commercially constructed wheel wash near the exit of the facility. C. The proposed changes include the addition of digestate. The term digestate can be used to describe digested sewage sludge. The San Joaquin County Ordinance Code has a prohibition of the land spreading of sewage sludge, composted or other. Digestate containing sewage sludge or bio-solids is prohibited. D. If in the future the facility decides to accept commercial food waste and or food digestate, odor control measures must be implemented. The proposed control measures shall be submitted to the EHD, for review and approval prior to implementation. If the proposed control measures are not effective then additional control measures must be implemented or the receipt of food shall be discontinued until such time effective controls measure can be developed. E. If acceptance of commercial food waste occurs at the site, the operator shall conduct a comprehensive odor study to determine to odor impacts and propose alternative control measures based on the studies recommendations. The odor study will need to include meteorological conditions, inversion layers, and nearby receptors. The study should utilize discrete sampling and an odor panel to determine the odor units created by the addition of food waste and digestate to the compost.