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Cascade Energy Storage, LLC Battery Storage Project All applicable local, state, and federal requirements and best management practices (BMPs) would be incorporated into the construction activities for the project site. Beginning work on the project site would involve preparing the land for installation of the BESS related infrastructure,access driveways,and temporary construction staging areas. The construction contractor would be required to incorporate BMPs consistent with the City zoning ordinance and with guidelines provided in the California Storm Water Quality Association's Construction Best Management Practice Handbook, and a soil erosion and sedimentation control plan to reduce potential impacts related to construction of the proposed project. Prior to initial construction mobilization, pre-construction surveys would be performed and sediment and erosion controls would be installed in accordance with City and State guidelines. Stabilized construction entrances and exits would be installed at driveways to reduce tracking of sediment onto adjacent public roadways. Site preparation would be consistent with County BMPs and District rules for dust control. Site preparation would involve the removal of existing biomass fuel residue that would unduly interfere with project construction or the health and safety of on-site personnel. Dust-minimizing techniques would be employed, such as application of water and/or application of dust suppressants. Earthworks scrapers, excavators, dozers, water trucks, paddlewheels, haul vehicles, and graders may all be used to perform grading. Trenching would be required for placement of underground electrical and communication lines, and may include the use of trenchers, backhoes, excavators, haul vehicles, compaction equipment, and water trucks. After preparation of the site, the foundations, equipment enclosures, and equipment vaults would be prepared per geotechnical engineer recommendations. The switchyard areas would have a grounding grid installed and would be covered with aggregate surfacing for safe operation. Collection and transmission structures from the BESS to the PG&E would require drilling for foundation support, and the soils removed would be spread across the project site. During this work, there would be multiple crews working on the site with various equipment and vehicles, including special vehicles for transporting the batteries and other equipment. As the BESS facility is constructed, the electrical collection and communication systems would be installed. The wiring would connect to the appropriate electrical and communication terminations and the circuits would be checked and commissioned prior to operation. It is estimated that site grading and preparation would require the following equipment: Equipment Type Quantity Bulldozer (e.g., CAT D7) 1-2 Grader (e.g., CAT D7) 1-2 Scraper(15-30 CY) 2 Water Truck(3,000—5,000 gal) 1-2 Self-Propelled Compactor 1-2 Dump Truck 2-3 Tractor/Loader/Backhoe (e.g., Case 590) 2-3 kidsteer Tractor (Bobcat) 1-2 Trash Dumpster (10-40 CY) 1-2 Concrete Pump 1-2 Concrete Truck 2-3 Pickup Truck 3-4 Page 10