3214 BROADWAY BROADWAY KINECT APARTMENTS 2021-08-11

• CITY OF EVERETT STORMWATER MANAGEMENT MANUAL ID lb 6. When no formed areas are available,washwater and leftover product shall be contained in a lined • container or a hole dug on site. Contained concrete shall be disposed of in a manner that does not violate groundwater or surface water quality standards. Maintenance Standards • Containers shall be checked for holes in the liner daily during concrete pours and repaired the same day. 3.2.19 BMP C152: Saw-cutting and Surfacing Pollution Prevention = Purpose - Sawcutting and surfacing operations generate slurry and process water that contains fine particles and • high pH(concrete cutting),both of which can violate the water quality standards in the receiving water. • This BMP is intended to minimize and eliminate process water and slurry from entering waters of the state. • Conditions of Use Anytime saw-cutting or surfacing operations take place,these management practices shall be utilized. • Sawcutting and surfacing operations include,but are not limited to,the following: - 1. Sawing1111 2. Coring • 3. Grinding • 4. Roughening • 5. Hydro-demolition • 6. Bridge and road surfacing. • Design and Installation Specifications 1. Slurry and cuttings shall be vacuumed during cutting and surfacing operations. 2. Slurry and cuttings shall not remain on permanent concrete or asphalt pavement overnight. 3. Slurry and cuttings shall not drain to any natural or constructed drainage conveyance. S 4. Collected slurry and cuttings shall be disposed of in a manner that does not violate groundwater • or surface water quality standards. • 5. Process water that is generated during hydro-demolition, surface roughening or similar operations • shall not drain to any natural or constructed drainage conveyance and shall be disposed of in a - manner that does not violate groundwater or surface water quality standards. 6. Cleaning waste material and demolition debris shall be handled and disposed of in a manner that - does not cause contamination of water. If the area is swept with a pick-up sweeper,the material 411 must be hauled out of the area to an appropriate site. • Maintenance Standards • Continually monitor operations to determine whether slurry, cuttings, or process water could enter waters • of the state. If inspections show that a violation of water quality standards could occur,stop operations and immediately implement preventive measures such as berms,barriers, secondary containment,and vacuum trucks. • • lb Volume II—Construction Stormwater Pollution Prevention 3-31 •