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San Joaquin Vdilay ` <br /> AIR POLLUTION CONTROL DISTRICT HEALTHY AIR LIVING <br /> March 24, 2011 <br /> ,�ounty of San Joaquin <br /> Community Development Department <br /> 1810 E. Hazelton Avenue <br /> Stockton, California 95205 <br /> Project: Tracy Materials Recovery, Inc. <br /> District CEQ A Reference No: 20/00341 <br /> Dear Mr. Swanson: <br /> The San Joaquin Valley Unified Air Pollution Control District (District) has reviewed the <br /> Mitigated Negative Declaration (MND) for the project referenced above. The project is to <br /> allow for a 12.5 acre expansion to an existing solid waste processing and recycling <br /> facility located at 30703 S. MacArthur Drive in Tracy, California. <br /> 1. The Districts Guidelines for Assessing and Mitigating Air Quality Impacts (GAMAQI) <br /> does not specifically identify a threshold of significance for PM10 emissions. <br /> However, the District recommends use of a 15 tons per year threshold as set by the <br /> New Source Review (NSR) Offset Requirements. Therefore the District recommends <br /> amending the MND and emissions assessments to reflect a 15 tons per year <br /> threshold of significance for PM10. Thresholds of significance for Reactive Organic <br /> Gas (ROG) and Oxides of Nitrogen (NOx) are also set in accordance with the NSR <br /> Offset Requirements. <br /> 2. Currently the District is in the preliminary stages of developing a new draft rule (Draft <br /> Rule 4566) for Composting and Related Operations. The MRF/TS Compost <br /> r <br /> t.7)iiSSJl7 LSIi:7ial Cs a5SE3SSil ienuri!eihUdvKigy may r'r82d 10 be revised t_ra5cu vn c:It <br /> outcome of the rule development process. <br /> 3. The project includes an expansion of 29,400 square feet to an existing 47,200 <br /> square foot building, and an additional 10,500 square foot expansion to an existing <br /> maintenance/administration building. The MND doesn't quantify or characterize the <br /> expansions construction related emissions. The District recommends quantifying <br /> construction related emissions and assessing the projects potential impacts on air <br /> quality. <br /> Seyed Sadredin <br /> Executive OirectorlAir Pollution Control Officer <br /> Northern Region Central Region(Main Office) Southern Region <br /> 4800 Enterprise Way 1990 E.Gettysburg Avenue 34946 Flyover Court <br /> Modesto,CA 95356-8718 Fresno,CA 93726 0244 Bakersfield,CA 933089725 <br /> Tel 12091 557 6400 FAX:(209)5576475 Tel:(5591 2306000 FAX:(559)2306061 Tel 561-392.5500 FAX:651-3925585 <br /> www.vaileyair.org www.healthyairliving.com <br />