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<br />REVISED DRAFT MARCH 23, 2012 <br />for those drainageways where agreements may not already exist and for <br />which are of critical importance to the City. These agreements would <br />establish minimal acceptable levels of maintenance, where the City has <br />permission, under appropriate limitations and constraints, to perform <br />such maintenance for an agreed upon compensation or other <br />considerations. <br />4)Coordinate with HCFCD to jointly fund and develop mutually beneficial <br /> <br />flood control projects within the City. <br />5)Eliminate or minimize exceptions that allow development to occur within <br /> <br />the floodplain. Development exceptions should meet the specifications <br />identified in the Citywide Drainage Study. <br />6)Consider enclosing certain segments of the drainage ditches for use as a <br /> <br />recreational amenity, such as trail space, greenways, and landscaping. <br />7)Evaluate the requirements and standards for on-site detention including <br /> <br />a minimum site threshold, exemptions for sustainable practices, and the <br />placement, design, and function of basins and other improvements. <br />8)Consider modifying the Public Improvement Criteria Manual (PICM) for <br /> <br />stormwater design to <br />playgrounds, ballfields, miniparks, required green spaces, etc. <br />9)Facilitate the joint use of regional detention whereby there can be a <br /> <br />cost-share arrangement and agreement among multiple properties and <br />owners. <br />10)Pursue loan or grant funding from the Texas Water Development Board, <br /> <br />to implement flood <br />control improvement projects within the City. <br />11)Revise the standards and specifications for drainage features to <br /> <br />correspond with development character expressed by this plan. For <br />instance, suburban development requires a high percentage of open <br />space (either by way of larger lots or larger common areas), which allows <br />for on-site collection, infiltration, and positive surface (natural) drainage. <br />This contrasts with a more densely developed urban character that <br />requires an underground stormwater drainage system. <br />12)Require riparian buffers along stream and drainage ways to increase <br /> <br />filtration and improve water runoff quality. <br />13)Encourage adequate design of new developments to maintain <br /> <br /> using development types with open <br />space preservationsuch as cluster developments. This provides <br />necessary density for developers in exchange for conserving site <br />resources and preserving sufficient land for stormwater collection and <br />detention/retention. <br />14)Periodically update the Citywide Drainage Study to reflect changing <br /> <br />conditions. <br />3.6 <br /> <br /> <br />Chapter 3 <br /> <br />