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3 <br /> <br /> ~ t <br /> processes; <br /> 1.2 No degradation of water features due to removal of streambank vegetation <br /> from construction sites in excess of those that occur through natural processes; <br /> 1.3 No deposit of mud, soil, sediment, concrete washout, trash, or other similar <br /> construction related material exceeding one-half cubic foot in volume for every 1,000 square <br /> feet of lot size onto public rights of way and private streets, and into the City's stormwater <br /> system and related natural resources, either by direct deposit, dropping, discharge, erosion, <br /> or tracking by construction vehicles, in excess of those that occur through natural processes. <br /> Any such dischazge shall be cleaned-up at the end of the current work shift in which the <br /> deposit occurred, or at the end of the current work day, whichever comes first. <br /> 1.4 No exposure of soils and stockpile areas to stormwater runoff without <br /> secondary containment and treatment measures. <br /> i <br /> j 1.5 No earth slides, mudflows, earth sloughing, or other earth movement which <br /> j may leave the property, in excess of those that occur through natural processes; <br /> 1.6 No discharge of runoff containing construction related contaminants into the <br /> I City' s stormwater system or related natural resources; and <br /> i <br /> 1.7 No release onto the site of hazardous substances, such as paints, thinners, <br /> i <br /> fuels and other chemicals. <br /> 2. Maximum extent practicable. Implementation of a stormwater management practice <br /> is considered practicable unless one or more of the following applies: <br /> 1, 2.1 The ractice is not technicall feasible for the ro sed use and h sical <br /> P Y P Po P Y <br /> characteristics of the site; <br /> I <br /> 2.2 The cost of implementing the practice would outweigh the benefits of <br /> I~, maintaining water quality. Costs are considered to outweigh benefits if they exceed $0.50 <br /> ~ per squaze foot of disturbed area. <br /> Costs to be considered under subparagraph R-6.645-D.2.2 include permit fees, design preparation <br /> i (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 /> Erosion Prevention Administrative Rule R-6.645 - 13 <br /> <br />