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36 <br />ATTACHMENT A: <br /> page of 40 <br /> <br />(2) The amendments are consistent with applicable provisions of the Metro Plan and applicable <br />adopted refinement plans. <br /> <br /> <br />The proposed code amendments add regulations to the Land Use Code with the intent of protecting <br />life and property from flood and drainage hazards, reducing the impacts that urbanization is having on <br />the City’s water quality, protecting waterways in the headwater areas from erosive effects of increases <br />in stormwater runoff, protecting the City’s stormwater system from oil and grease from stormwater <br />runoff , and preventing stormwater pollution by eliminating pathways that may introduce pollutants <br />into stormwater. Generally, the stormwater development standards fall into the following five <br />categories: <br /> <br />1. EC 9.6790, Stormwater Destination <br />, applies to all new development and redevelopment and is <br />intended to protect life and property from flood and drainage hazards by maintaining the capacity of <br />the City’s stormwater conveyance system through the establishment of destination regulations for <br />stormwater runoff from development. This provision requires applicants proposing new development <br />to submit documentation showing the stormwater destination into which the development will be <br />disposed. The documentation must establish that the existing stormwater drainage facilities into <br />which the stormwater from the proposed development will dispose has the capacity to handle the <br />stormwater runoff that will be generated by the proposed new development for the flood control <br />design storm. If the applicant cannot establish that existing stormwater drainage facilities have such <br />capacity, the applicant must construct new storm drainage facilities to accommodate the stormwater <br />draining from the proposed development. <br /> <br />2. EC 9.6791, Stormwater Pollution Reduction <br />, applies to land use applicants requesting approval <br />of a cluster subdivision, a conditional use, a partition, a planned used development, site review, or a <br />subdivision tentative plan and is intended to reduce the impacts that urbanization is having on the <br />City’s water quality by providing standards for the capture and treatment of stormwater runoff from <br />development. This provision requires that applicants include pollution reduction facilities selected <br />from the Stormwater Management Manual that treat all of the stormwater runoff from the <br />development site that will result from the water quality design storm. The pollution reduction <br />facilities must be sited, designed and constructed according to the Manual and must be designed using <br />one of the three methodologies outlined in the Manual. <br /> <br />3. EC 9.6792, Stormwater Flow Control <br />, applies to all land use applications for development sites <br />in the headwaters area requesting approval of a cluster subdivision, a conditional use, a partition, a <br />planned used development, site review, or a subdivision tentative plan and is intended to protect <br />waterways in the headwaters area from the erosive effects of increases in stormwater runoff peak flow <br />rates and volumes resulting from development. The provision requires that applicants demonstrate, <br />using methodology in the Stormwater Management Manual, that peak rates of flow delivered to an <br />existing open waterway at a point above 500 feet in elevation will not increase during storms larger <br />than the water quality design storm and smaller than the flood control design storm as a result of the <br /> <br /> <br />Exhibit A to Ordinance No. ___ <br />Findings of Consistency <br /> <br />