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I MOUNTAIN HOUSE NEIGHBORHOODS KAND L INITIAL STUDY 5.ENVIRONMENTAL CHECKLIST T HAZARDS 1 r; state and local regulations for proximity to gas and petroleum lines. No residential development is planned over these pipelines. All school facilities in Mountain House are sited to conform to school regulations and setbacks for safety with respect to fuel-related pipelines.A buffer zone of ! 1,500 feet from natural gas pipelines is required for all new schools.The j proposed schools are well over 1,500 feet from existing gas pipelines.The i Master Plan requires that a Pipeline Safety Plan encompassing new neighborhoods as they are developed be incorporated into the Incident Action Plan (also known as the Emergency Response Plan)for the Mountain House Fi community as a condition of project approval. r^ Asbestos and Lead in Structures. Because no structures(other than the treated t effluent storage reservoirs)are present on the Neighborhoods K and L sites, potentially hazardous materials such as lead-based paint and/or asbestos- containing building materials would not be encountered during project construction. Although not relevant to Neighborhoods K and L because no structures remain on these sites,the Master Plan requires that the applicant test all existing structures in the project area for lead-based paint and asbestos-containing building materials prior to demolition. If it is found that painted surfaces contain lead-based paint andlor the structures contain asbestos materials,the applicant i would prepare a Demolition Plan for the safe demolition of all site structures. Master Plan Provisions. Issues regarding the accidental release or upset of hazardous materials were addressed in the following Master Plan Sections:6.5 (Implementation Measures [a]and [b])(Emergency Preparedness);6.7 (Implementation Measure [e]) (Waste Management);6.8.4(Implementation Measure[b]) (Other Potential Hazards); and 6.10(Implementation Measures[a] and [b])(Asbestos). Mitigation Measures Mitigation Measure HAZARDS-1: Protocols for Petroleum Hydrocarbons in Soil. If indications ofpetroleum hydrocarbon Ficontamination in site soil, such as staining and odors, are observed during excavation or grading activities adjacent to Byron Road, the contractor shall stop work and notify the Chevron Environmental Management Company and �< the RWQCB in accordance with the procedures specified in the Soil and Groundwater Management Plans for Chevron Mountain House Sites Nos. 1, Z and 3. The contractor shall ensure that any contaminated soil and groundwater encountered during project construction is handled in a safe and lawful manner. c) Would the project emit hazardous emissions or handle hazardous or acutely hazardous materials, substances, or waste within one-quarter mile of an existing or proposed school? F cant+ l 5-99 R