HomeMy WebLinkAboutElement 9 BMP-C152BMP C152: Sawcutting 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 sawcutting or surfacing operations take place, these
management practices shall be utilized. Sawcutting and surfacing
operations include, but are not limited to, the following:
x Sawing
x Coring
x Grinding
x Roughening
x Hydro-demolition
x Bridge and road surfacing
Design and
Installation
Specifications
x Slurry and cuttings shall be vacuumed during cutting and surfacing
operations.
x Slurry and cuttings shall not remain on permanent concrete or asphalt
pavement overnight.
x Slurry and cuttings shall not drain to any natural or constructed
drainage conveyance.
x Collected slurry and cuttings shall be disposed of in a manner that does
not violate groundwater or surface water quality standards.
x 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.
x 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 must be hauled
out of the area to an appropriate disposal 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.
4-44 Volume II – Construction Stormwater Pollution Prevention February 2005