An illicit discharge is defined as any release into the drainage system (MS4) of contaminated water, or any non-stormwater discharge that contributes pollutants to receiving waters.
Public Works carries out regular inspections of stormwater outfalls citywide to ensure ongoing adherence to our Phase II permit requirements. According to a city by-law (Article V, Section 26 (PDF), specific enforcement and penalty protocols are in place for any unauthorized discharges detected within the city's MS4 system. Any discharge posing risks to public safety, public health, or the environment is considered a violation of this by-law and may result in a removal directive and/or fines imposed by the Conservation Commission, Board of Health, or Inspectional Services.
Examples of Illicit Discharges
- Bagged pet waste
- Direct septic connections into the storm drain system
- Improper disposal of automobile and household products
- Laundry wastewater
- Leaves and other debris dumped into open drainage and stream channels
- Overflow from septic tanks, car wash wastewater
- Sanitary wastewater from crushed or collapsed pipes or surcharges
Exceptions (not considered illicit discharges)
- Dechlorinated swimming pool discharges
- Diverted stream flows
- Foundation drains
- Landscape irrigation
- Potable water source discharges
- Rising or out-breaking groundwater
- Stormwater runoff from streets and sidewalks
- Water line flushing
For more information regarding the Phase II Stormwater Management Program, email stormwater management or call 508-532-6010.