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San Joaquin Valley <br />um AIR POLLUTION CONTROL DISTRICT <br />JUL 2 4 2019 <br />HEALTHY AIR LIVING <br />Teddy Hernandez <br />County of San Joaquin <br />Community Development Department <br />1810 E. HazeIton Avenue <br />Stockton, CA, 95205 <br />Project: Early Consultation for Application No. PA-1900143 <br />District CEQA Reference No: 20190892 <br />Dear Mr. Hernandez: <br />The San Joaquin Valley Unified Air Pollution Control District (District) has reviewed the <br />project referenced above consisting of construction of an unmanned trailer parking and <br />storage facility for a maximum of 200 trailers which will include construction of a 80 square <br />foot bathroom (Project) located at 26901 South Hansen Road, in Tracy, CA. The District <br />offers the following comments: <br />District Comments <br />1) The District's initial review of the Project concludes that emissions resulting from <br />construction and/or operation of the Project may exceed the following thresholds of <br />significance: 100 tons per year of carbon monoxide (CO), 10 tons per year of oxides <br />of nitrogen (N0x), 10 tons per year of reactive organic gases (ROG), 27 tons per <br />year of oxides of sulfur (S0x), 15 tons per year of particulate matter of 10 microns <br />or less in size (PM10), or 15 tons per year of particulate matter of 2.5 microns or less <br />in size (PM2.5). The District recommends that a more detailed preliminary review <br />of the Project be conducted. The additional environmental review of the Project's <br />potential impact on air quality should consider the following: <br />1a)Project Emissions should be identified and quantified. <br />i) Construction Emissions: Construction emissions are short-term emissions <br />and should be evaluated separately from operational emissions. For <br />reference, the District's annual criteria thresholds of significance for <br />construction are: 100 tons per year of carbon monoxide (CO), 10 tons per <br />year of oxides of nitrogen (N0x), 10 tons per year of reactive organic gases <br />(ROG), 27 tons per year of oxides of sulfur (S0x), 15 tons per year of <br />Samir Sheikh <br />Executive DirectorlAir Pollution Control Officer <br />Northern Region <br />4800 Enterprise Way <br />Modesto, CA 95356-8718 <br />Tel: (209) 557-6400 FAX: (209) 557-6475 <br />Central Region (Main Office) <br />1990 E. Gettysburg Avenue <br />Fresno, CA 93726.0244 <br />Tel: (559) 230-6000 FAX: (559) 230-6061 <br />Southern Region <br />34946 Flyover Court <br />Bakersfield, CA 93308-9725 <br />Tel: 661-392-5500 FAX: 661-392.5585 <br />www.valleyair.org www.healthyairliving.com <br />led 0n retried palm. CO