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22. Best Management Practices: A. To control erosion and sedimentation during project construction and operation, the developer shall comply with MHMP policies, MHMP mitigation measures, and Phase I and II NPDES permit requirements, including the preparation and implementation of a SWPPP that outlines BMPs to be followed to minimize erosion and sedimentation during project construction and operation. B. All non-residential (Le. Office, Industrial, Commercial, Neighborhood Commercial etc), uses must perform a pretreatment of all storm flows before the flows enter a public storm system. The design shall be in accordance with the Storm Water Master Plan Update and NPDES requirements. The MHCSD shall review and approve the plans and the specifications for the storm pretreatment prior to issuance of the building permit. C. The applicant shall construct catch basin filters and/or other source control Best Management Practices (BMPs) for urban runoff from Tract 3481 as determined by the MHCSD. D. Construction -Related Erosion: The applicant and/or contractor shall comply with applicable NPDES General Construction Activities Storm Water Permit requirements established by the Clean Water Act. Pursuant to the NPDES Storm Water Program, an application for coverage under the statewide General Construction Activities Storm Water Permit (General Permit) shall be obtained for project development prior to the issuance of grading permits. The applicant and/or contractor shall obtain coverage under the General Permit by filing a Notice of Intent with the State Water Resource Control Board's (SWRCB) Division of Water Quality. The filing shall describe erosion control and storm water treatment measures to be implemented during and following construction and provide a schedule for monitoring performance. MHCSD approved BMPs shall serve to control point and non -point source pollutants in storm water and shall constitute the project's storm water pollution prevention program (SWPPP) for construction activities. Timing: All applicable permits shall be obtained prior to the issuance of grading permits for Tract 3481. 23. Storm Drains: A. The developer shall fund, design and construct the required storm drainage system in accordance with the requirements of the Storm Water Master Plan Update and the MHCSD's Standards and Specifications to serve Tract 3481 unless otherwise required or approved by the General Manager of the MHCSD. B. The developer shall build the required drainage system and water quality basins and improve the creek as required by MHCSD to accommodate runoff from the project. The developers shall expand WQB1 as required by MHCSD to accommodate runoff from the project before development of those portions are to be served by the DeAnza Boulevard and Mountain House Parkway storm -drain systems. The basin shall be expanded to a capacity necessary to serve Tract No. 3481. The configuration shall be as per the Storm Water Master Plan Update. The Water Quality Basin shall be dedicated to MHCSD. 24. Water Quality Basins Mosquito Abatement: Plans for the implementation and maintenance of the water quality basins and any other storm drainage facilities involving open bodies of water shall be reviewed and approved by the MHCSD and if required by the MHCSD, reviewed by the mosquito Abatement District. Condition shall be met before approval of first Final Map. 22