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OCT-10-36 THU 09:00 2723, FAX NO. 20J45 '8652 P. 02/05 � <br /> San Joaquin Valley , <br /> Unified Air Pollution Conti-ol District <br /> October 9, 1996 _ <br /> Tom Gau <br /> San Joaquin County <br /> Community Development Department <br /> Development Services Division <br /> 1810 East Hazelton Avenue <br /> Stockton, CA 95205 <br /> SUBJECT: QUARRY EXCAVATION (QX-96-1) TO REMOVE APPROXIMATELY <br /> 29,750,000 TONS OF AGGREGATE OVER 56 YEARS <br /> Dear Mr. Gau: 1. <br /> The San Joaquin Valley Unified Air Pollution Control District has reviewed the <br /> proposed project and was unable to determine from the information provided whether <br /> the project would have a significant impact on the ambient air quality. Based on this <br /> project's large size and the anticipated increase in truck traffic, it appears likely that this <br /> operation would exceed the District's interim threshold for significant impact for oxides � <br /> of nitrogen (NOx) and possibly other pollutants. The District recommends that an air ; <br /> quality impact analysis be required to more accurately.quantify all sources of emissions <br /> from the project and to identify feasible mitigation measL res to reduce impacts. For the <br /> purposes of this analysis, emissions generated by direct sources (plant operation) and <br /> indirect sources (project related traffic) can be reported i;eparately. The District will <br /> take into consideration the source of emissions and any mitigating factors when <br /> determining the significance of emissions generated by this facility. The District is <br /> available to provide emission factors and other informatian needed to prepare a <br /> complete impact analysis. <br /> Projects of this type can generate emission from the movement of soil, use of <br /> construction equipment, bulk materials handling, asphalt. paving and other related <br /> activities. <br /> This project is subject to District Regulation VIII (Fugitives Dust Prohibitions). The <br /> purpose of Regulation Vlll is to reduce the amount of fins particulate matter (PM-10) <br /> entrained into the ambient air from man-made sources. Specifically, the Rules within <br /> Regulation Vill that apply to this project are: Rule 8010 (Administrative Requirements), r <br /> and Rule 8020 (Construction, Demolition, Excavation, and Extraction Activities), <br /> naviA I- Crnw <br /> Zwcuave Director/Air Poaudart C mml Qrfrorr LL1 <br /> 1900 TW.Auenne Ltreec,xam 200-MSO,CA 033137-13061 431.1000-PAX[2091-`31 JW f <br /> Northern Region Central Region Southern Region ## <br /> 4230 K1 ro on Avenue.Saito 130-Abd=o.CA 95356 1999 Tuofumne Stan Stare 200-Fresno,CA 93%, 2700 U Stma Sunt Z75.9sxo—.Wd.CA 3 301 <br /> 13091 50-7000-FAX 1¢09)54-86:2 (2091497.1[100-FJK{209)=-2057 (30.11862.5=0-f3r(3051 W24207 <br />