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4.8 Hydrology and Water Quality ._ 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 (SWPPP).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 or control pollutants in runoff after construction is complete and identify a plan to inspect and maintain these facilities or project elements. Implementation of the plan starts with the commencement of construction and continues though the completion of the project. Upon completion of the project, the applicant must submit a Notice of Termination to the SWRCB to _ indicate that construction is completed. San Joaquin County General Plan The San Joaquin County General Plan includes the following relevant policies related to flooding and water quality: Flooding Policy 1 New residential, public,commercial,and industrial development shall be _ required to have protection from a 100-year flood. Water Quality Policy I Water quality shall meet the standards necessary for the uses to which the water resources are put. Policy 2 Surface water and groundwater quality shall be protected and improved when necessary. Policy 3 The use and disposal of toxic chemicals,the extraction of resources, and the disposal of wastes into injection wells shall be carefully controlled and monitored to protect water quality. Policy 5 Substantial groundwater recharge areas,as shown in Figure VI-6, shall be kept in open space. Policy 6 The replenishment of aquifers shall be supported to minimize the overdraft of groundwater. Policy 8 The County shall encourage water conservation. Policy 9 The County shall encourage wastewater reclamation efforts. Policy 15 The County shall encourage reduction of pavement area in project design and the use of permeable pavements where possible. RMC Pacific Vemalis Quarry Mining and Reclamation Project 4.8-17 ESA 1203015 Draft Environmental Impact Report May 2006