What is an illicit discharge?
An illicit discharge is a discharge into the storm sewer system that is not entirely composed of stormwater. According to State College Borough Code of Ordinances Ch. XIV Sec. 211.m., non-stormwater discharges which may be allowed to the Borough's separate storm sewer system include:
  1. Discharges from firefighting activities;
  2. Potable water sources including dechlorinated water line and fire hydrant flushing.
  3. Irrigation drainage;
  4. Routing external building wash-down (which does not use detergents or other compounds);
  5. Air conditioning condensate;
  6. Water from individual residential car washing;
  7. Springs;
  8. Water from crawl space pumps;
  9. Uncontaminated water from a foundation or from footing drains;
  10. Flows from riparian habitats and wetlands;
  11. Lawn watering;
  12. Pavement wash waters where spills or leaks of toxic or hazardous materials have not occurred (unless all spilled material has been removed) and where detergents have not been used;
  13. Dechlorinated swimming pool discharges;
  14. Uncontaminated groundwater.
  15. Diverted stream flow;
  16. Uncontaminated pumped groundwater.

Show All Answers

1. Why does stormwater matter to me?
2. What is an illicit discharge?
3. What is Stormwater?