Pollutant Sources

Swimming PoolSources

Pollution sources potentially come from all Exempted or Conditionally Exempted Non-Stormwater Discharges.

Conditionally Exempted Discharges

  • Pumped groundwater, foundation drains, and water from crawl space pumps and footing drains
  • Air conditioning condensate
  • Emergency discharges of potable water
  • Individual residential car washing
  • Swimming pool, hot tub, spa, and fountain water discharges
  • Irrigation water, landscape irrigation, and lawn or garden watering

Exempted Discharges

The following non-stormwater discharges are exempted discharges unless they are identified by the municipality as sources of pollutants to receiving waters:

  • Flows from riparian habitats or wetlands
  • Diverted stream flows
  • Flows from natural spring
  • Rising ground waters
  • Uncontaminated and unpolluted groundwater infiltrations
  • Single family homes' pumped groundwater, foundation drains, and water from crawl space pumps and footing drains
  • Pumped groundwater from drinking water aquifers (excludes well development)
  • NPDES permitted discharges (individual or general permits)