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San Joaquin Valley <br /> Unified Air Pollution Control District <br /> err - , �, � <br /> December 28, 1993 �I <br /> Richard Larrouy <br /> San Joaquin County 3 1994 <br /> Community Development Department al)Y(V)U(YI/ ; V[YC1 lry(L), <br /> 1810 East Hazelton Avenue ilLANN1NGD1!/!S10N iJtN1. <br /> Stockton, CA 95205 <br /> SUBJECT: A GRADING EXCAVATION APPLICATION TO REMOVE 178,400 CUBIC <br /> YARDS OF SOIL. (GX-93-4) <br /> The San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD) has <br /> reviewed the project referenced above and offers the following comments: <br /> San Joaquin Valley's air quality has been designated non-attainment by the EPA and <br /> the California Air Resources Board for the following pollutants, PM10 (fine particulate <br /> matter, dust) and 03 (ozone), The California Clean Air Act (AB2595), requires areas <br /> that are designated as non-attainment to reduce emissions 5% annually until <br /> standards are met. <br /> The nature of this project creates the potential for substantial amounts of PM10 to be <br /> entrained into the ambient air. From the description of the project it appears that <br /> SJVUAPCD Rule 8020 will apply. In addition to the requirements of the <br /> aforementioned rule it is suggested that the project applicant take all feasible <br /> measures to reduce the amount of dust and other pollutants that will result from the <br /> excavation process. Specifically, the District suggests that the following Mitigation <br /> Measures be included as part of project approval: <br /> 1 . All material excavated or graded should be sufficiently watered to prevent <br /> excessive amounts of dust. Watering should occur at least twice daily with <br /> complete coverage, preferably in the late morning and after work is done for <br /> the day. <br /> 2. All clearing, grading, earth moving, or excavation activities should cease when <br /> wind speeds are equal to or greater than 20 mph. <br /> 3. On-site vehicle speed should be limited to 15 mph. <br /> David L Crow <br /> Executive Director/Air Pollution Control Qp4cer <br /> 19W Tudumne Snee1.Suite 200•Fresno.CA 93721•(209)a9T t OW•FAX(209)2332051 <br /> Northern Region Central Region Southern Region <br /> A230 Kiernan A u..Sue.130•MW .CA 95356 1999 Tudumne Street Suite 200•Freso ,CA 93721 27W M Street Sade 275•BaF ttwt.CA 93301 <br /> (209)5x5 2000•F.120915 x58652 (209)69]1000•Fax(MI)233 2057 (805)861-3682•Fa.(805)8612W0 <br />