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t <br /> BMP C152: Sawcuttingand SurfacingPollution Prevention <br /> 1 Purpose Sawcutting and surfacing operations generate slurry and process water <br /> that contains fine particles and high pH (concrete cutting),both of which <br /> can violate the water quality standards in the receiving water. This BMP <br /> is intended to minimize and eliminate process water and slurry from <br /> entering waters of the State. <br /> Conditions of Use Anytime sawcutting or surfacing operations take place, these <br /> management practices shall be utilized. Sawcutting and surfacing <br /> operations include, but are not limited to, the following: <br /> i • Sawing <br /> • Coring <br /> • Grinding <br /> • Roughening <br /> • Hydro-demolition <br /> • Bridge and road surfacing <br /> Design.and • Slurry and cuttings shall be vacuumed during cutting and surfacing <br /> Installation operations. <br /> Specifications • Slurry and cuttings shall not remain on permanent concrete or asphalt <br /> pavement overnight. <br /> • Slurry and cuttings shall not drain to any natural or constructed <br /> drainage conveyance. <br /> • Collected slurry and cuttings shall be disposed of in a manner that does <br /> not violate groundwater or surface water quality standards. <br /> • Process water that is generated during hydro-demolition, surface <br /> ' roughening or similar operations shall not drain to any natural or <br /> constructed drainage conveyance and shall be disposed of in a manner <br /> that does not violate groundwater or surface water quality standards. <br /> ' • Cleaning waste material and demolition debris shall be handled and <br /> disposed of in a manner that does not cause contamination of water. If <br /> the area is swept with a pick-up sweeper, the material must be hauled <br /> out of the area to an appropriate disposal site. <br /> Maintenance Continually monitor operations to determine whether slurry, cuttings, or <br /> Standards process water could enter waters of the state. If inspections show that a <br /> violation of water quality standards could occur, stop operations and <br /> immediately implement preventive measures such as berms,barriers, <br /> secondary containment, and vacuum trucks. <br /> i <br /> ' 4-44 Volume ll—Construction Stormwater Pollution Prevention February 2005 <br />