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San Joaquin County Community Environmental Setting,Impacts,and Mitigation Measures <br /> Development Department Hazards and Hazardous Materials <br /> 3.1 Hazards and Hazardous Materials <br /> Introduction <br /> This section describes existing hazardous materials in the project area;presents <br /> the federal, state, and local policies and regulations that determine mitigation <br /> requirements; and identifies impacts associated with implementation of the <br /> proposed Project. Potential impacts of project alternatives on hazardous <br /> materials are described and analyzed in Chapter 4, "Alternatives Analysis." <br /> Im The key sources of data and information used in the preparation of this section <br /> are listed below. <br /> ■ The San Joaquin County General Plan(1992). <br /> ■ Department of Toxic Substances Control(DTSC)Hazardous Waste and <br /> Substances Site List(Cortese List). Available: <br /> www.dtsc.ca.gov/database/Calsites/. <br /> ■ U.S. EPA Region 9 Superfund web site. Available: www.epa.gov/ <br /> region09/waste/sfund/indcx.html. <br /> ■ San Joaquin County West Nile Virus Task Force Fact Sheet. Available: <br /> www.sjgov.org/EDH/docs/pdf/WNV%20Fact%2OSheet.pdf(WNVTF Fact <br /> Sheet 2005). <br /> Environmental Setting <br /> Regional and County <br /> Hazardous materials, including agricultural chemicals,natural gas and petroleum, <br /> explosives,and various commercial chemical substances,are used, stored,or <br /> produced in San Joaquin County. Many miles of natural gas and petroleum <br /> pipelines traverse the county, carrying natural gas,crude oil,and other petroleum <br /> products. An underground PG&E natural gas pipeline crosses the southern <br /> portion of the site. A hazard associated with these types of pipelines is accidental <br /> release of natural gas or petroleum products into the environment in the event of <br /> a pipeline break,which would create a hazardous condition for people living in <br /> the area and the environment. <br /> Given the historic agricultural use of the site, soils in the project area are likely to <br /> .. have been subject to previous application of various agricultural chemicals, <br /> including pesticides,fertilizers, and herbicides. The types of pesticides used and <br /> methods of application depend on factors such as time of year,crop type, <br /> weather, and pest population. More recently developed and approved pesticides <br /> tend to bond tightly to soils, limiting the degree to which the chemicals are able <br /> DeSilva Gates Quarry Project <br /> Draft Environmental Impact Report 3.1-1 <br /> J8S 05105.05 <br />