Editing Permeable paving (section)

=== Pollutant load ===
Runoff across some land uses may become contaminated, where pollutant concentrations exceed those typically found in stormwater. These "hot spots" include commercial [[Plant nursery|plant nurseries]], [[recycling]] facilities, [[Filling station|fueling stations]], industrial storage, [[marina]]s, some outdoor [[Loading dock|loading facilities]], public works yards, hazardous materials generators (if containers are exposed to rainfall), vehicle service, washing, and maintenance areas, and steam cleaning facilities. Since porous pavement is an infiltration practice, it should not be applied at stormwater hot spots due to the potential for groundwater contamination. All contaminated runoff should be prevented from entering municipal storm drain systems by using [[Best management practice for water pollution|best management practices]] (BMPs) for the specific industry or activity.<ref>{{Cite web|date=2007
| author= Capital Regional District, British Columbia 
|title=Regulating Stormwater Discharges
|url=https://www.crd.bc.ca/watersheds/regulations.htm|access-date=2023-01-29|website=www.crd.bc.ca| archive-url= https://web.archive.org/web/20070712104515/https://www.crd.bc.ca/watersheds/regulations.htm 
| archive-date= 2007-07-12 
|language=en}}</ref>