Illicit Discharge Detection & Elimination

As a designated MS4 program and in accordance with § 152.041 of the York County Code of Ordinances, York County has developed a comprehensive, proactive Illicit Discharge Detection Elimination (IDDE) program for the purpose of detecting and eliminating illicit discharges into the York County MS4 system and receiving water.  An effective IDDE program is more than just a program to respond to complaints about illicit discharges or spills. York County is required to proactively seek out illicit discharges, or activities that could result in discharges, such as illegal connections to the storm sewer system, improper disposal of wastes, or dumping of used motor oil or other chemicals.

Illicit discharges and illegal dumping is a violation of § 152.041 of the York County Code of Ordinances and will be investigated. Violations are subject to corrective action requirements and civil penalties up to and including $1,000 per violation per day.  

The following are common sources of illicit discharges:

  • Sanitary sewer wastewater
  • Effluent from septic tanks
  • Car wash wastewaters
  • Improper oil disposal
  • Radiator flushing disposal
  • Laundry wastewaters/gray water
  • Spills from roadway accidents
  • Improper disposal of auto and household toxics
  • Carpet cleaning wastewaters
  • Concrete and paint washouts
  • Pet waste
  • Yard debris in street or drainage system
  • Litter
  • Cooking grease

Be a part of our team and report illicit discharges to our Stormwater Hotline at 803-909-7250

  1. Illicit Discharge Hot Line

    Phone: 803-909-7250