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Page 3 of 7 <br />B. If down gradient treatment system is overloaded additional up gradient sediment <br />control practices must be installed to eliminate overloading. The SWPPP must <br />be amended to identify the additional practices. <br />C. There shall be no unbroken slope length greater than 75 feet with a grade of 3:1 <br />or steeper. <br />D. All storm drain inlets must be protected by approved BMP’s in accordance with <br />standard detail ERO-4A, ERO-4B, ERO-4C, or ERO-4D, during construction <br />until all potential sources for discharge have been stabilized. These devices <br />must be maintained until final stabilization is achieved. <br />E. Temporary stockpiles must have silt fence or other effective sediment controls <br />on the down gradient side of the stockpile and shall not be placed at least twenty <br />five (25) feet from any road, wetland, protected water, drainage channel, or <br />storm water inlets. Stockpile left for more than fourteen (14) days must be <br />stabilized with mulch, vegetation, tarps or other approved means. <br />F. Vehicle tracking of sediment from project shall be minimized by approved <br />BMP‘s in accordance with standard detail ERO-6 or approved equal. These <br />shall be installed and maintained at the City approved entrances. Individual lots <br />shall each be required to install and maintained entrances throughout the <br />construction building until a paved driveway is install. <br />G. Sediment that has washed or tracked from site by motor vehicles or equipment <br />shall be cleaned from paved surfaces throughout the duration of construction. <br />H. Silt fence in accordance with standard detail ERO-1A, ERO-1B or ERO-1C or <br />other approved sediment control devices must be installed in all areas as shown <br />on the SWPPP. <br />I. Silt fence or other approved sediment control devices shall be required along the <br />entire curb line, except for approved opening where construction entrance will <br />be installed or drainage flows away from curb. This device must be maintained <br />until final stabilization is achieved. <br />J. Ditch checks in accordance with standard detail ERO-5A, ERO-5B, ERO-5C, <br />ERO-5D, or ERO-5E, shall be required in ditch bottoms. Spacing for the check <br />must be as followed: <br />[Height in feet (of the sediment device used)] X 100 / Slope Gradient <br />K. Dust control measures, such as application of water must be performed <br />periodically due to weather, construction activity, and/or as directed by the City. <br />L. Flows from diversion channels or pipes (temporary or permanent) must be <br />routed to sedimentation basins or appropriate energy dissipaters to prevent the <br />transport of sediment to outflow or lateral conveyors and to prevent erosion and <br />sediment buildup when runoff flows into the conveyors. <br />M. Concrete washout shall be installed on projects that require the use of concrete. <br />No concrete waste water shall leave washout area <br />N. All sediment control measures shall be used and maintained for the duration of <br />the project until final stabilization has been achieved accordance with Part 7. If <br />construction operations or natural events damage or interfere with any erosion <br />control measures, they must be restored to serve their intended function. <br />O. Additional sediment control measures shall be added as necessary to effectively <br />protect the natural resources of the City. The temporary and permanent erosion