is considered practicable unless one or more of the following applies: <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 1 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 /> <br /> provisions, the City has prepared a map indicating sites that appear to meet the above criteria. The <br /> <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 /> <br /> Proposed Erosion Prevention Administrative Rule R-6.645 - 8 12/4/96 <br /> <br />