Illicit Discharge

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Illicit Discharge Detection and Elimination

What is an illicit discharge? Empty paint buckets left outside
An illicit discharge is any discharge to the storm drain system that is not composed entirely of stormwater.  Only rain water and snowmelt can go down the stormdrains.

Is washing my car at home prohibited?
No, you can continue to wash your car at home just wash your car sensibly so the soapy water does not get into the storm drains.  If possible wash your car on grass or a gravel area so the wash water can filter into the ground.  Use a hose with a shut-off nozzle to reduce the amount of water used.  Pour your soapy water out in a sink or an area where it can filter into the ground instead of down the storm drain.  For more information: Frequently Asked Questions About Vehicle Washing (pdf)

Can I still drain my pool or hot tub into the road?
Yes, as long as the following conditions are met:

  1. The chlorine must be reduced to a level below 0.1 milligrams per liter (mg/L)
  2. The water must be pH adjusted and re-oxygenated if necessary
  3. The volume and velocity must be controlled to prevent re-suspension of sediment in the street and storm drain system.

    For more information: Swimming Pool Discharge Requirements

When did the program start?
The four jurisdictions each adopted an Illicit Discharge Detection and Elimination (IDDE) Ordinance by late summer of 2009. All of the ordinances prohibit non-stormwater discharges and with a few exceptions allow similar enforcement action.

IDDE Response Procedures
The IDDE program is Appendix C in the Wenatchee Valley Stormwater Program.  

Dumpster leaking into a stormdrain For more information regarding IDDE:

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