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2. After Drainageway 7 -1 crosses Highway 42, daylight flows into an open channel to the extent <br />possible without negatively impacting the existing community garden and market farm areas. At <br />the western edge of this area, design a conduit to convey flows to the east where flows will once <br />again daylight into an open channel. <br />3. Design an open channel for Drainageway 7 -1 east of the existing community garden and market <br />farm areas to convey a 10 -year storm until it combines with Drainageway 7 -2. <br />4. Determine the horizontal alignment of Drainageway 7 -1 so that disruption to the existing <br />irrigation system is minimized (i.e. do not deviate from the current flow path). Also, do not <br />include a hardened surface road for maintenance access along Drainageway 7 -1 within the Open <br />Space. <br />5. Design Drainageway A in such a way as to preserve as much mature vegetation as possible, <br />primarily by shifting the horizontal alignment of the channel to protect trees. <br />6. Include on all drawings the location of all preserved historic landmarked areas. <br />7. Design the open channel for Drainageway A -2 east of the proposed soccer complex area and <br />Drainageway A to convey a 10 -year storm until Drainageway A combines with Drainageway 7. <br />Also show and describe all recommended facilities, costs and actions on a reach -by -reach basis of <br />the drainageway. In general, the Final Report shall provide, show, and recommend the following: <br />1. Under a section in the Final Report titled "General Recommendations ", recommend: <br />a) That the controlling jurisdictions take steps to stabilize all major waterways when their <br />watershed urbanizes, rehabilitate existing degraded reaches of the waterways and their <br />tributaries, and aggressively control erosion and sediment transport during construction <br />activities. <br />b) That Sponsors and any other jurisdiction having land use control powers in this watershed <br />require new land development and significant redevelopment and publicly funded projects to <br />provide to the maximum extent practicable runoff volume control practices (i.e., minimize <br />directly connected impervious areas and employ infiltrating BMPs) whenever site conditions <br />permit. <br />c) That the controlling jurisdictions take steps to require that all BMPs for all new <br />development, redevelopment, and publicly funded projects provide to the maximum extent <br />practicable a Water Quality Capture Volume (WQCV) as recommended in the Urban Storm <br />Drainage Criteria Manual — Volume 3, after accounting for volume reductions achieved <br />using volume control practices as recommended under Item 1.b above. <br />d) That all jurisdiction having land use control powers in this watershed continue to implement <br />their floodplain management regulations, including regulation of the 100 -year floodway and <br />floodplain. <br />Recommend that these jurisdictions adopt a policy, if not already done so, of preserving the <br />defined floodplains as open spaces to the maximum extent possible and that at least 1 -foot <br />freeboard be provided for the lowest floor above the 100 -year flood elevation shown on the <br />latest flood hazard area delineation or FIRM maps for all human occupied structures built <br />adjacent to, or within, the defined 100 -year floodplains. <br />Selected Plan: Lafayette- Louisville Boundary OSP <br />2 <br />41 <br />