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is considered practicable unless one or more of the following applies: <br />r-~?- <br />2.1 The practice is not technically feasible for the proposed use and physical <br />characteristics of the site; <br />2.2 The cost of implementing the practice would outweigh the benefits of <br />maintaining water quality. Costs are considered to outweigh benefits if they exceed $0.50 <br />per square foot of disturbed area. <br />Costs to be considered under subparagraph R-6.645-D.2.2 include permit fees, design preparation <br />(construction site management plan/template), construction of construction site management <br />measures, and monitoring by a professional. Costs do not include: maintenance of management <br />measures, actions taken to correct violations, and permanent landscape-and associated design fees. <br />3. When designing and implementing management measures to meet the above <br />outcomes, the applicant shall consider the seasonal variation of rainfall, temperature, and other <br />climatic factors relative to the timing of land disturbance activities. Management measures shall be <br />adjusted to meet increased stormwater runoff flows and velocities between November l and April <br />30 of the following calendar year. <br />4. No permit or other approval issued pursuant to these rules shall be deemed to <br />authorize any violation of the above prohibitions. <br />R-.6.645-E Designation of Sensitive Areas. <br />1. Criteria for Sensitive Area Designation. For the purposes of administering these <br />Rules; any construction site-that meets one or more of the following criteria shall be considered a <br />sensitive area for which an erosion prevention permit will be required: <br />1.1 -The slope of the parcel in the area of disturbance is greater than 10%; <br />1.2 The site contains highly erodible soils; or <br />1.3 The parcel or tax lot of record has the potential to directly drain into a water <br />feature or its designated buffer area. <br />2. Determination of Sensitive Area. To assist with the administration of these <br />provisions, the City has prepared a map indicating sites that appear to meet the above criteria. The <br />Public Work's Director, or designee, shall use this map to make a preliminary determination of a <br />site's sensitive area status. The map is on file at the City's Public Works. Engineering Department <br />.(858 Pearl Street) and Permit & Information Center (99 West 10th Avenue). <br />Proposed Erosion Prevention Administrative Rule R-6.645 - 8 12/4196 <br />