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4. ENVIRONMENTAL ANALYSIS r 4.8 HYDROLOGY AND WATER QUALITY activity that could affect the bank or bed of any stream that has value to fish and wildlife. If any changes were proposed along a creek or waterway within their jurisdiction,a Streambed Alteration Agreement would be required under the Department of Fish and Game Code r Sections 1601 and 1603. Any local or jurisdictional water quality programs must also be addressed when constructing in areas that influence the quality of surface and ground water. Regional Water Quality Control Board Regulations, Goals, and Policies The RWQCB is responsible for the protection of beneficial uses of water resources within the San ` Joaquin River Basin. The RWQCB uses planning,permitting,and enforcement authorities to meet this responsibility, and adopted the Central Valley Region Water Quality Control Plan (Basin Plan)to implement plans,policies,and provision for water quality management. Beneficial uses of surface waters are described in the Basin Plan and are designated for major surface waters and their tributaries. In addition to identification of beneficial uses,the Basin Plan also contains water quality objectives that are intended to protect the beneficial uses of the Basin. Table 4.8-3 defines the beneficial uses(CVRWQCB's Basin Plan)of surface water resources identified in the project area. v TABLE 4.8-3 DEFINITIONS OF BENEFICIAL USES OF SURFACE WATERS FOR THE PROJECT AREA Beneficial Use Description Freshwater Replenishment(FRSH) Uses of water for natural or artificial maintenance of surface t. water quantity or quality. Wildlife Habitat(WILD) Uses of waters that support wildlife habitats,including r preservation of vegetation,prey species,and water quality. SOURCE: Central Valley Region Basin Water Quality Control Plan,June 1994 .. Construction Activity Permitting The CVRWQCB administers the National Pollution Discharge Elimination System(NPDES) storm water permitting program in the Central Valley region. Construction activities of five acres or more are subject to the permitting requirements of the NPDES General Permit for Discharges of Storm Water Runoff Associated with Construction Activity (General Construction Permit). The project applicant must submit a Notice of Intent(NOI)to the SWRCB to be covered by the General Permit prior to the beginning of construction. The General Construction Permit requires the preparation and implementation of a Storm Water Pollution Prevention Plan (SV,/PPP). The SWPPP must be prepared before construction begins. The plan would include specifications for Best Management Practices (BMPs) that would be implemented during project construction to control contamination of surface flows through measures to prevent the potential discharge of pollutants from the construction area. Additionally,the plan would describe measures to prevent RMC Pacific Vemalis Quarry Mining and Reclamation Project 4.8-17 PSA/203015 Administrative Dmtt EIR March 2054