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PUD•93-02-09M 2001 Ruby Hill Boulevard Discussion a-b) During construction potentially hazardous liquid materials such as oil, diesel fuel, gasoline, and hydraulic fluid would be used at the site. If spilled, these substances could pose a risk to the environment and to human health. In the event of a spill, the Livermore-Pleasanton Fire Department is responsible for responding to non-emergency hazardous materials reports. The use, handling, and storage of hazardous materials is highly regulated by both the Federal Occupational Safety and Health Administration (Fed/OSHA) and the California Occupational Safety and Health Administration (CallOSHA). The City has in place an Emergency Response Plan to meet the needs should a spills or a hazardous event take place. Routine transport, use and disposal of hazardous materials are already regulated by federal, state and local regulations. This project will require disclosure of any hazardous materials, the amounts anticipated and where those materials will be stored or used. Therefore, this would be aless-than-significant-impact. c) Uses allowed in residential development are not associated with substantial use, storage, or transportation of hazardous substances. These substances would not pose a risk to any existing or proposed schools proximate to this project. Therefore, this would be categorized as no- impact. d) The project area is not included on the list of hazardous materials sites compiled pursuant to Government Code 65962.5 (Cortese List). Therefore, this would be categorized as no-impact. e-h) The project area is located approximately 4.4 miles from the Livermore Airport and is not likely to result in a safety hazard for residents, worker and patrons of the restaurant. The proposed development will not result in interference with an emergency plan or evacuation plan. Wildlands do not exist within or adjacent to the subject area. Therefore, this would be aless-than-significant-impact. 8. HYDROLOGY AND WATER QUALITY Environmental Setting The National Pollutant Discharge Elimination System (NPDES) was established in the Clean Water Act to regulate municipal and industrial discharges to surface waters of the U.S. Non-point sourced diffuse and originate over a wide area rather than from a definable point. Two types of non-point source discharges are controlled by the NPDES program; discharges caused by general construction activities and general quality of storm water in municipal stormwater systems. Standards of Significance For purposes of this environmental document, an impact is considered significant if the proposed project would: Result in substantially degrading water quality or violate any water quality objectives set by the State Water Resources Control Board due to increased sediments or other contaminants generated by consumption and/or operation activities; Result in exposing people or property to the risk of injury and damage in the event of a 100 year flood. 17