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extent possible. The design measures must also <br /> provide for protection of and any necessary <br /> improvements to existing culverts and stream <br /> crossings within the drainage system. The use of <br /> pervious pavements must be incorporated into the <br /> design of parking and pedestrian areas to increase <br /> infiltration of storm water runoff . The design and <br /> maintenance plan must present specific channel <br /> maintenance procedures and schedules to be <br /> implemented by the Community Services District to <br /> protect the channel and associated structures during <br /> and after the development of the Project . The <br /> channel design and maintenance plan must be reviewed <br /> and be subject to the approval of the San Joaquin <br /> Flood Control Engineer . <br /> • See FEIR, Section 4 . 7 . <br /> 0-3 . Potentially Significant Impact • Increased Sedimentation <br /> [Impact 4 . 7-31 <br /> Increased sedimentation in the proposed wetland area at <br /> the terminus of Mountain House Creek and within Old River <br /> would be caused by runoff from Mountain House Creek and <br /> operation of the proposed marina . <br /> Finding : Changes or alterations have been required in, <br /> or incorporated into, the Project which avoid or <br /> substantially lessen the significant environmental effect <br /> as identified in the FEIR to a non-significant level . <br /> These mitigation measures are listed below. <br /> Statement of Fact : The impact will be mitigated by the <br /> following : <br /> • Sediment discharge to Mountain House Creek will be <br /> controlled through appropriate control of erosion <br /> within the Project area, which would contribute to <br /> the sediment load. The discharge of sediment to Old <br /> River must also be minimized by causing sediment <br /> deposition to occur in areas within the Mountain <br /> House Creek channel . The Mountain House Creek <br /> channel must be enlarged upstream of the wetlands <br /> area to reduce flow velocities and cause sediment <br /> deposition. An appropriate channel design must be <br /> required as part of the Specific Plan and subject to <br /> review and approval by the San Joaquin Flood Control <br /> Engineer . <br /> • As part of the Specific Plan, a dredging plan must be <br /> developed for removal of accumulated sediment from <br /> C2-37 <br /> 0189r/0202r <br />