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NARRATIVE DISCUSSION Environmental Setting The State of California maintains two hazardous material site databases: the EnviroStor database, maintained by the Department of Toxic Substances Control; and the GeoTracker database, maintained by the SWRCB. Neither database had a record of any active hazardous material cases on or within one-half mile of the project site (DTSC 2021, SWRCB 2021). The EnviroStor database recorded a school investigation in 2001 for a proposed Pock Lane Community School on 2520 Pock Lane. A preliminary environmental assessment detected no contamination on the site, and no further action was deemed necessary (DTSC 2021). A list of solid waste disposal sites identified by SWRCB with waste constituents above hazardous waste levels outside the waste management unit did not show any locations in the County (CaIEPA 2021a). Likewise, a list by SWRCB containing sites under Cease and Desist Orders and Cleanup and Abatement Orders showed no locations on or near the project site (CaIEPA 2021b). The nearest public use airport to the project site is Stockton Metropolitan Airport, approximately 2.25 miles to the south. Unlike other airports in San Joaquin County, Stockton Metropolitan Airport offers scheduled passenger air service, though not as frequently as airports in Sacramento and the San Francisco Bay Area. An Airport Land Use Compatibility Plan (ALUCP) for Stockton Metropolitan Airport was adopted by the County in 2016 (Coffinan Associates 2016). The ALUCP delineated safety zones surrounding the airport and identified compatible land use for each safety zone. It also identified an Airport Influence Area, which identifies an area within which development projects are subject to review by the County Airport Land Use Commission. SJCOG functions as the County Airport Land Use Commission. Wildfires are a potential hazard in many parts of San Joaquin County. High hazard areas in the County for wildland fires are the grass-covered areas in the east and the southwest foothills (San Joaquin County 2016a). The project site is not within these areas. Section 3.20, Wildfire, discusses wildfire issues in more detail. Environmental Impacts and Mitigation Measures a) Hazardous Materials Transportation, Use and Disposal. The project proposes development of single-family residential subdivisions. Hazardous materials that are likely to be used and stored on the project site would include cleaning products, and pesticides, herbicides, and fertilizers for private yards. None of these hazardous materials would be stored or used in large quantities. Facilities that store significant amounts of hazardous materials are required to prepare a Hazardous Material Business Plan that would be submitted to the County Environmental Pock Lane Public Review Draft IS/MND 3-39 May 2022