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Finding: Mitigation Measure N0I-2 would reduce the project -related impacts related to noise levels in the project vicinity as a result of construction activities to a less - than -significant level. Facts in SUPDort of Finding: This mitigation measure appropriately identifies measures consistent with best management practice to reduce ambient noise levels in the project vicinity during construction to acceptable levels established by the City. HAZARDS AND HAZARDOUS MATERIALS Impact HAZA: Construction of the proposed project and the project variant could result in accidental releases of hazardous materials and/or the disturbance and reuse of soil potentially impacted with hazardous materials that could result in impacts to construction workers, the public, and/or the environment. Mitigation HAZ-1: A Response Plan shall be prepared by a qualified environmental professional to protect construction workers, the public, and the environment from hazardous materials, including potential unknown contamination in the subsurface of the project site. The Response Plan shall be submitted to and approved by the Regional Water Board prior to the start of construction activities, and shall include, but not be limited to, the following: 1. Procedures for evaluating, handling, storing, testing and disposing of soil and groundwater generated during project excavation and grading activities. Materials generated from excavation and grading activities on the project site shall be tested for potential contaminants prior to re -use as engineered fill on-site. 2. A project -specific Health and Safety Plan that identifies hazardous materials to be used at the project site (e.g., oils, fuels, paints, solvents, and adhesives) and hazardous materials identified in soil, groundwater, and soil vapor through sampling; describes required health and safety provisions and training for all workers potentially exposed to hazardous materials in accordance with State and federal worker safety regulations; and designates the personnel responsible for Health and Safety Plan implementation. 3. A contingency plan that shall be implemented if previously unidentified potentially contaminated material or regulated features (e.g., USTs) are encountered during construction activities. The contingency plan shall include provisions that require notification of the City, Regional Water Board, or any other regulatory agencies with jurisdiction, when potentially contaminated material is encountered. Physical signs of potentially contaminated materials include staining/discoloration, oily sheen or free phase products, odors, the presence of rubble/debris/refuse, or the presence of buried features that may contain hazardous materials (e.g., drums, buckets, sumps, vaults, or pipelines). The contingency plan shall include guidelines for the collection of soil and/or groundwater samples by a qualified environmental professional prior to further work in the newly discovered affected area. The samples shall be submitted for laboratory analysis by a State -certified laboratory under chain -of -custody procedures. The analytical methods shall be selected by the environmental professional. The analytical results of the sampling shall be reviewed by the qualified environmental professional and submitted to the appropriate regulatory agency, if appropriate. The environmental professional shall provide recommendations, as applicable, regarding soil/waste management, worker health and safety training, and ATTY/RESO.0035/CC RESO CERTIFYING FINAL EIR-1548 MAPLE REV: 04-30-18 PR Page 15 of 49 RESO. NO. 15661 MUFF NO. 601