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CITY OF EVERETT STORMWATER MANAGEMENT MANUAL <br /> Material Measure Quantity <br /> Clear Plastic, 6 mil 100 foot roll 1-2 <br /> Drainpipe, 6 or 8 inch diameter 25 foot section 4-6 <br /> Sandbags, filled each 25-50 <br /> Straw Bales for mulching approx. 50#each 10-20 <br /> Quarry Spalls ton 2-4 <br /> Washed Gravel cubic yard 2-4 <br /> Geotextile Fabric 100 foot roll 1-2 <br /> Catch Basin Inserts each 2-4 <br /> � Steel T-Posts each 12-24 <br /> - 3.2.18 BMP C151: Concrete Handling <br /> � Purpose <br /> Concrete work can generate process water and slurry that contain fine particles and high pH, both of <br /> which can violate water quality standards in the receiving water. This BMP is intended to minimize and <br /> eliminate concrete process water and slurry froin entering waters of the state. <br /> Conditions of Use <br /> For use any time concrete is used, these management practices shall be utilized. Concrete construction <br /> projects include, but are not limited to,the following: <br /> l. Curbs <br /> 2. Sidewalks <br /> 3. Roads <br /> 4. Bridges <br /> 5. Foundations <br /> 6. Floors <br /> 7. Runways. <br /> Design and/nstallafion Specifications <br /> " 1. Concrete truck chutes, pumps, and internals shall be washed out only into formed areas awaiting <br /> installation of concrete or asphalt. <br /> - 2. Unused concrete remaining in the truck and pump shall be returned to the originating batch plant <br /> for recycling, as feasible. <br /> 3. Hand tools including, but not limited to, screeds, shovels, rakes, floats, and trowels shall be <br /> washed off only into formed areas awaiting installation of concrete or asphalt. <br /> 4. Equipment that cannot be easily moved, such as concrete pavers, shall only be washed in areas <br /> that do not directly drain to natural or constructed stormwater conveyances. <br /> 5. Wash down from areas such as concrete aggregate driveways shall not drain directly to natural ar <br /> constructed stormwater conveyances. <br /> Volume 11— Construction Stormwater Pollution Prevention <br /> 3-30 <br />