3214 BROADWAY BROADWAY KINECT APARTMENTS 2021-08-11

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