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The proposed project is not a heavy industrial,power plant,W NTP,or other project where large amounts of hazardous materials would be used, stored,handled,or transported,and thus the potential for upset and accident conditions at the project site involving hazardous materials is minimal.Furthermore,the use, handling and transport of the small quantities of chemicals,cleaning solutions, fuels, and other hazardous _ materials typically associated with the types of uses proposed under the College Park project would be of a small scale and are highly regulated.Therefore, a less-than-significant impact would occur. The project would include grading,excavation, and other earth moving activities in close proximity to the four existing natural gas pipelines and one existing crude oil pipeline identified in Figure 4.9-3 and would occur in close proximity to one petroleum and two natural gas pipelines crossing under Grant Line Road just east of the Alameda-San Joaquin County line.Project construction activities could potentially damage,puncture,or sever these pipelines,resulting in the potential release of natural gas or crude oil, contamination of soil or surface water, and human exposure.However, the MHMP Section 6.8.1 and Delta College Mitigation Measure 4.9-1 require that appropriate plans, operating procedures,and - safeguards be undertaken to reduce the potential for safety hazards in the area of the pipelines,that a Pipeline Safety Plan be prepared,and that construction activities within 500 feet of the pipelines be coordinated with PG&E and Chevron. Compliance with these requirements would avoid significant upset and accident conditions.A less-than-significant impact would occur. Mitigation Measure 4.9-2: Public Health and Safety-Expose People to Hazardous Materials Associated with Upset and Accident Conditions. No mitigation is required. IMPACT Public Health and Safety-Emit Hazardous Emissions or Handle Hazardous Materials within one- 4.9.3 quarter Mile of a School. The proposed project would be located in on-quarter mile of planned/proposed schools,but would not generate hazardous emissions or handle large quantities of hazardous materials. A iess•than•significant impact would occur. The proposed project would include residential, limited industrial,office,neighborhood commercial, and park uses within one-quarter mile of two K-8 schools proposed as part of the College Park project. However,the proposed project would not accommodate heavy industrial uses,power plants,W Vi Ps, or other uses that could generate hazardous emissions or include the handling of large quantities of - hazardous materials. A site assessment would be conducted for the proposed school sites. The assessment and appropriate analysis would be conducted in accordance with the CDE requirements and would be under separate CEQA documentation.Therefore,a less-than-significant impact would occur. - Mitigation Measure 4.9.3: Public Health and Safety-Emit Hazardous Emissions or Handle Hazardous Materials within One-Quarter Mile of a School. No mitigation is required. IMPACT Public Health and Safety-Locate a School Site in an Area of Potential Hazards. One of the two 4.9.4 proposed K-8 school sites would be located in an area of potential hazardous conditions as defined by CEQA (Section 21151). The school would be located less than one-quarter mile from a potential source of hazardous emissions and a fixation where large amounts of hazardous materials may potentially be used and stored.A significant impact would occur. One of the two proposed K-8 school sites would be located on a current or former hazardous materials waste or solid waste disposal facility site, a listed hazardous materials site,the site of buried pipelines that EDAW College Park at Mountain House Specific Plan III Draft OR Public Health and Safety 4.9-32 San Joaquin County