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San Joaquin Valley <br />AIR POLLUTION CONTROL DISTRICT <br />June 4, 2007 <br />Antonio Salcedo <br />San Joaquin County <br />Community Development Department <br />1810 East Hazelton Avenue <br />Stockton, CA 95205 <br />Project: PA -0700113 (AE); Greg & Angelina Kamper <br />RECIEVE® <br />JUN - 7 2007 <br />Community Development Dept. <br />Subject: CEQA comments regarding the proposed removal of 29,200 cubic yards of <br />topsoil at 19523 S. Williams Way, Ripon (APN 245-130-38) <br />District Reference No: 200700805 <br />Dear Mr. Salcedo: <br />The San Joaquin Valley Unified Air Pollution Control District (District) has reviewed the <br />project referenced above and offers the following comments: <br />The San Joaquin Valley Air Basin is currently designated as serious non -attainment for <br />Ozone and non -attainment (no classification) for PM2.5. On October 30, 2006, the US <br />EPA found that the San Joaquin Valley had attained the PM10 standard. The US EPA <br />based its determination upon monitoring data demonstrating that the ambient air quality <br />had met the requirements for attainment. The US EPA's finding does not change the <br />District's classification as a serious PM10 non -attainment to attainment area. However, <br />re -designation from serious non -attainment to attainment requires additional <br />documentaticn and will occur at some future date. <br />Findinqs of Siqnificance <br />This project would contribute to the overall decline in air quality due to construction <br />activities in preparation of the site, and ongoing traffic and other operational emissions. <br />Based on the information provided, the District expects that the project would not exceed <br />the District's Thresholds of Significance for ozone precursors of 10 tons per year of <br />reactive organic gases (ROG) and oxides of nitrogen (NOx). However, the increase in <br />emissions from this project, and others like it, cumulatively reduce the air quality in the <br />Northern Region <br />4800 Enterprise Way <br />Modesto, CA 95356-8718 <br />TeL (209) 557-6400 FAX: (209) 557-6475 <br />Seyed Sadredin <br />Executive Director/Air Pollution Control Officer <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 />www.valleyair.org <br />Southern Region <br />2700 M Street. Suite 275 <br />Bakersfield, CA 93301-2373 <br />Tel: (661) 326-6900 FAX:1661) 326-6985 <br />Primed.n recycled paper Li <br />