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Cascade Energy Storage, LLC Battery Storage Project California Stormwater Quality Association's Construction Best Management Practice Handbook. Outdoor electrical equipment, cooling fans, and HVAC systems would generate low levels of noise during routine operations. The closest sensitive receptors is the residence located north of the site. The facility would be designed to comply with the local noise standards. Solid and Nonhazardous Waste The project would produce a small amount of waste associated with maintenance activities, which could include broken and rusted metal, defective or malfunctioning modules, electrical materials, empty containers, and other miscellaneous solid waste, including the typical refuse generated by workers. Most of these materials would be collected and delivered back to the manufacturer or to recyclers. Non- recyclable waste would be placed in covered dumpsters and removed on a regular basis by a certified waste-handling contractor for disposal at a Class III landfill. Hazardous Materials Limited amounts of hazardous materials would be stored or used on the site during operations, including diesel fuel,gasoline and motor oil for vehicles, mineral oil to be sealed within the transformers, and lead- acid-based and/or lithium-ion batteries for emergency backup. Appropriate spill containment and cleanup kits would be maintained during operation of the project. If the quantity of oil products is above the threshold, a Spill Prevention Control and Countermeasures (SPCC) plan will be developed for site operations. Hazardous Waste Hazardous waste, if generated during operations, would be disposed of according to applicable state and federal requirements. As the individual battery's useful life diminishes, they will be removed from site and either recycled or disposed in an appropriate manner, then new batteries will be brought onsite as replacements. Security and Lighting The project will be fenced to prevent access by the public. A gate will be installed at the roads entering the project site. Limiting access to the project site will be necessary both to ensure the safety of the public and to protect the equipment from potential theft and vandalism. While there is potential for fire hazards in the areas surrounding the project site, the project site itself is not mapped as a very high fire hazard area by San Joaquin County. Vegetation is sparse, with little potential for vegetative fuel buildup. The project's lighting system would provide 0&M personnel with illumination for both normal and emergency conditions. Lighting would be designed to provide the minimum illumination needed to achieve safety and security objectives. Additionally, lighting would be directed downward and shielded to focus illumination on the desired areas only and to minimize light trespass. Page 13