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<br /> <br />THE DISTRICT <br />Once planners understand how to use the ele- <br />ments in both plans, they should look to the <br />district. For watersheds this may be a subwa- <br />tershed or drainage basin, while in land use it <br />may be a neighborhood, brownfield, planned <br />unit development, or subdivision. This critical <br />level of analysis is often overlooked in water <br />planning for three reasons: <br />1. The early discussions of watershed-friendly <br />development techniques took place without <br />questioning the impact of highly separated <br />land uses. <br /> <br />2. District planning for compact form and devel- <br />opment intensity runs counter to traditional <br />stormwater engineering approaches and per- <br />formance standards. which are established <br />at the site or project level rather than the dis- <br />trict or sub-basin level. Calculating perform- <br />ance for, a pond on an individual site is eas- <br />ier than assessing the benefits of <br />redevelopment for a watershed. <br /> <br />3. Like many aspects of infrastructure, the <br />responsibility for stormwater control is <br />increasingly delegated to the developer. As <br />such, site design tends to be inwardly <br /> <br />focused to meet the needs of the site <br />rather than to take advantage of an effi- <br />cient, natural system for the entire basin. <br /> <br />To help improve assessments for dis- <br />tricts or sub-basins, planners should work <br />with stormwater and watershed departments. <br />For watersheds, engineers can look at a rede- <br />velopment project to measure the amount of <br />impervious surface avoided, or identify <br />drainage basins for redevelopment in an older <br />downtown. Engage economic development <br />departments to see where the municipality's <br /> <br /> <br />46 <br /> <br />ZONINGPRACTICE 11.06 <br />AMERICAN PLANNING ASSOCIATION I page 4 <br />