IDDE Hotline

Illicit Discharge Detection and Elimination (IDDE) Hotline

An illicit discharge is defined as any discharge to the storm sewer system that is not composed entirely of stormwater. These non-stormwater discharges occur due to illegal connections, dumping, and improper disposal into the storm drain system from business or commercial establishments.   There are some exceptions for discharges allowed under a NPDES permit or waters used for firefighting operations.  The Borough of Denver’s illicit discharge detection and elimination program is designed to prevent contamination of groundwater supplies and surface waters by monitoring, inspection and removal of these illegal non-stormwater discharges.

Prohibited non-stormwater discharges include, but are not limited to, sanitary wastewater, car wash wastewater, radiator flushing disposal, spills from roadway accidents, carpet cleaning wastewater, effluent from septic tanks, improper oil disposal, laundry wastewater/gray water, or improper disposal of auto and household toxics.  

If you notice an illicit discharge and pollution into the Borough’s stormwater system, please report these concerns such as spills, illegal dumping, flooding, washouts, or standing water by either contacting Michael Hession, Borough Manager, at 717-336-2831, or by emailing the Borough’s Illicit Discharge Detection and Elimination Hotline.