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' r DISCUSSION OF RMTAL EVALUATION <br />Weaver Industries Inc., proposes the establishment of a green waste <br />composting operation as part of their already existing vermicomposting <br />facility. The green waste composting operation would occupy approximately <br />20 acres of the 80 acre site. Approximately 150 tons of green material <br />(unprocessed green wastes, untreated wood wastes, natural fiber wastes, <br />other plant wastes, and manure) will be received daily. The green <br />material will undergo a screening and grinding process, then composted via <br />a windrow system. Composted material will be used to produce earthworm <br />castings, thermophilically composted components of potting soil and soil <br />amendments, peat moss substitutes, mulches and soil conditioners, blended <br />professional planting soils, humus and live earthworm, and cogeneration <br />fuels. <br />The material is delivered to the site, inspected and mixed to ensure that <br />materials high in nitrogen are mixed with materials higher in carbon <br />content. The process helps odor control and fire suppression. The <br />material is then ground and deposited into windrows, water added and the <br />windrows turned frequently to maintain the compost in aerobic <br />decomposition. Total project time from receiving the green wastes to <br />shipping final products out of the facility is expected not to exceed 120 <br />days, in average. <br />Noise producing equipment, such as the grinder, will be located between <br />the two long buildings and be electrically powered. <br />The property is located at 2403 W. Louise Avenue (San Joaquin county <br />Assessor Parcel No. 198-110-02). <br />II POTENTIAL IMPACTS (numbers correspond to sections in Initial <br />Study with questions marked "yes" or "maybe") <br />Air <br />a, b. The project could potentially result in are emissions or <br />deterioration of ambient air quality and potentially create <br />objectionable odors. <br />6. Noise <br />a, b. The project will increase existing noise levels and could <br />potentially result in exposure of people to severe noise levels. <br />III MITIGATION OF POTENTIAL IMPACTS <br />2. A i r <br />a. Mitigation to a less than significant level for potential <br />deterioration of ambient air quality shall be through implementation of <br />the following: <br />1. All material excavated, graded or otherwise disturbed should be <br />sufficiently watered or otherwise treated to prevent excessive <br />amounts of dust entrainment. <br />2. Un -site vehicle speed on unpaved surfaces shall be limited to 15 <br />mph. <br />3. Unpaved surfaces utilized by vehicles in the production operation <br />shall be sufficiently watered or otherwise treated to prevent <br />excessive amounts of dust entrainment. <br />4. All internal combustion engine driven equipment shall be properly <br />maintained and tuned according to manufacturer's specifications. <br />5. Idling of all internal combustion equipment shall be limited to <br />ten minutes at any given time. <br />6. Project proponent, when applicable, shall obtain a permit to <br />operate from the San Joaquin Valley Unified Air Pollution Control <br />District and any other appropriate State agency. Applicant shall <br />comply with the terms and conditions of said entitlements. <br />b. Mitigation to a less than significant level for potential creation <br />of objectionable odors shall be through implementation of the following: <br />1_ Limiting the incoming material to the receiving area. Incoming <br />material shall be allowed to accumulate on-site but shall be handled <br />in a timely manner. <br />UPN-gb-11 and SPC -9b- 5, Page_,�of �,� <br />