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1 <br /> • Individual si solution could potentially destroy the continuity of natural resource systems <br /> SYSTEM (BASIN) SUITABILITY <br /> Management Guideline - Planning decisions should consider the general suitability of a <br /> drainage basin r implementing on -site stormwater controls, including: extent of existing <br /> development, unt and type of future development, stonnwater quality concerns, extent and <br /> location of exist hg stormwater infrastructure, physical characteristics, and hydrologic <br /> feasibility. <br /> I <br /> Advantages: <br /> Disadvantages: <br /> 1. <br /> • Could creat4 problem with peak discharge - delay in peak combining with another peak <br /> • Basin analy is of runoff would be difficult to model <br /> • Less ability o do systems approach for flood control <br /> • Most of wh t we can put into place will affect only new development, but may not be <br /> effective on a community wide basis because cannot apply to existing development <br /> • Most of de lopment pattern and public system is already in place, thus there will be less <br /> (fewer) savi gs in capital and maintenance <br /> SITE SUITABILITY <br /> Management Guideline - In addition to basin suitability, planning decisions should consider the <br /> physical conditions of a site for determining suitability for on -site controls, including size, soils, <br /> slope, and natural resources. <br /> Advantages: <br /> Disadvantages: <br /> • Expansive day soils in South Hills and other areas may limit the options <br /> • Some sites may not be developable if on -site controls required <br /> • Limited applicability to small sites to be developed <br /> • It will make some sites almost impossible to develop due to steep slopes, clay soils, etc. <br /> WATER QURLITY CONTROL STRATEGIES <br /> Management Guideline - Planning decisions should target pollutants of concern and give <br /> priority to controlling pollutants at their source. . <br /> Advantages: <br /> A -6 <br />