Laserfiche WebLink
BMP C152: Sawcutting and Surfacing Pollution Prevention <br />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 />Design and <br />Installatdon <br />Specifications <br />Maintenance <br />Standards <br />4-44 <br />• Sawing <br />• Coring <br />• Grinding <br />• Roughening <br />• Hydro-demolition <br />• Bridge and road surfacing <br />• Slurry and cuttings shall be vacuumed during cutting and surfacing <br />operations. <br />• 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 />Continually monitor operations to determine whether slurry, cuttings, or <br />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 />Volume 11— Construction Stormwater Pollution Prevention February 2005 <br />