When assessing LID options on
your site, identifying pollution threats is an important part of
P2 is about anticipating and preventing pollution instead of
reacting to it after a spill or release has occurred. It is part of
an ongoing pollution management approach
that is comprised
of prevention, control and clean-up.
changing raw materials or staff routines can result in pollution
The ways in which P2 is achieved varies from one sector to
another, but typically there are nine common opportunities:
Dumpsters can be a major
source of pollution that can affect water quality. When
dumpster lids are left open rainwater is able to mix withthe trash, resulting in a leaking fluid, or “dumpster juice”
that can contain toxic organic and inorganic materials. If
not treated, this dumpster juice can enter the storm drain
system, contributing to poor water quality.
Restaurants produce grease
and other wastes as a by-product of normal food
properly dispose of used waste.
==Parking lot maintenance==
have the potential to pollute stormwater runoff if sensible
P2 practices are not employed. This is particularly true
of power washing, which can deliver sediment, nutrients,
, and other pollutants to the storm drain
Some building maintenance
practices produce polluted wash water that can directly
enter the storm drain system during dry weather,
whereas others deposit fine particles or liquids that can
wash away into stormsewers during wet weather.
==Landscaping and grounds care == Landscaping
services are generally performed by a lawn care/
landscaping contractor or an in-house maintenance
pollution, particularly in urban areas where soils are
The risk of stormwater pollution
is greatest for operations that store large quantities of
the storm drain system. Protecting outdoor storage areas
is a simple and effective P2 practice.
==Vehicle maintenance and repair == Often, vehicles
that are wrecked or awaiting repair can be a concern if
leaking fluids are exposed to stormwater runoff. Vehicle