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i r <br /> Mulch (BMP C121) will also be used on the exposed soil as necessary to limit erosion. In <br /> addition, streets shall be cleaned as needed at the end of each work day or throughout the <br /> day if dirt and debris is tracked onto the paved surfaces. <br /> 5:. Stabilize Soils <br /> The "Construction Sequence" calls for the stabilization of soils that remain unworked for <br /> certain lengths of time based on the time of year. Bare/disturbed soils shall remain <br /> uncovered or un-stabilized for no more than 2 days from Oct. 1 -April 30 and no more than <br /> 7 days from May 1 -'Sept. 30. Stabilization techniques may include but not limited to <br /> mulching (BMP C121), plastic sheeting (BMP C123) or hydroseeding (BMP C120), notes <br /> have been added to the plan regarding protection for the stock pile area if necessary. A <br /> stockpile area has been identified on the SWPPP and is setback a minimum of 25-feet from <br /> any down slope property line. In addition, during dry periods soil should be covered or <br /> wetted (BMP C140)to reduce the production of dust. <br /> 6: Protect Slopes <br /> All disturbed slopes on site during construction are required to be protected with mulch(BMP <br /> C121) or other means as specified in the construction sequence like surface roughening <br /> (BMP C130). No concentrated runoff or significant amounts of sheet flow will be directed to <br /> new cut or fill slopes during construction (BMP C206). <br /> 7: Protect Drain Inlets <br /> Drain inlets will be protected by silt sock or other approved methods. <br /> 8: Stabilize Channels and Outlets <br /> • The outfall for the roof downspouts will be protected with splash"blocks. <br /> 9: Control Pollutants <br /> No outside chemicals are expected to be necessary for the construction of this project. <br /> Concrete truck chutes,pumps,internals and hand tools shall be washed out only into formed <br /> areas awaiting installation of concrete or asphalt. Unused concrete remaining in the truck <br /> and pump shall be returned to the originating batch plant for recycling. When no formed <br /> areas are available, washwater and leftover product shall be contained in a lined container <br /> and disposed'cif'in a manner'that does•nol violate Water quality"standards. All vehicles <br /> working on and around the site would need to meet the State requirements for emissions. <br /> A drip pan or other appropriate temporary containment device shall be placed at locations <br /> where leaks or spills may occur during the fueling or maintenance of machinery. <br /> 10: Control DeWatering <br /> DeWatering is not expected for this project. <br /> 11: Maintain BMPs <br /> Haack—Taylor Drive 19-1112 <br /> January 2020 <br /> 'Revised:'October2020 Page 7 <br />