Report Illicit Storm Drain Discharge - Seattle Law

Utilities and Infrastructure Washington 3 Minutes Read ยท published February 07, 2026 Flag of Washington

Seattle, Washington residents and businesses must report any illicit discharge to storm drains to protect public health and local waterways. This guide explains who enforces city rules, what to report, how to file a complaint, likely enforcement outcomes, and practical next steps to ensure compliance in Seattle.

What is an illicit storm drain discharge

An illicit discharge is any non-stormwater flow to the public storm drain system, including sewage, vehicle washwater, industrial waste, concrete washout, and unauthorized chemical or petroleum releases. Reporting helps Seattle Public Utilities and other city departments respond quickly to stop pollution and mitigate harm.

Report visible discharges immediately and, if there is imminent danger, call emergency services.

How to report

Use the City of Seattle reporting channels to notify the appropriate authority. You can submit an online report or call the Seattle Public Utilities hotline to report illicit discharges, spills, or suspicious flows into storm drains. Report pollution or spills online or by phone[1]

Penalties & Enforcement

Enforcement for illicit discharges is carried out by Seattle Public Utilities (SPU) and may involve other city departments as applicable. Specific fine schedules, escalation, and detailed penalty amounts are not specified on the cited page; refer to the enforcing department for exact figures.[1]

  • Fines: not specified on the cited page; contact SPU for current civil penalties and schedules.
  • Escalation: first, repeat, and continuing offences are addressed by progressive enforcement actions, but ranges and thresholds are not specified on the cited page.
  • Non-monetary sanctions: corrective orders, required cleanup, restoration, administrative orders, and referral to legal action or court are possible.
  • Enforcer and complaint pathway: Seattle Public Utilities handles reports and investigations; use the SPU reporting portal or hotline to file complaints.[1]
  • Appeals and review: specific appeal procedures and time limits are not specified on the cited page; contact SPU for appeal steps and deadlines.
Keep photos, timestamps, and location details to support any enforcement action.

Applications & Forms

The primary tool to report an illicit discharge is the SPU online reporting portal or phone hotline; the cited page does not list a separate permit form for reporting enforcement actions. For permits or variances that authorize certain discharges, consult the enforcing department directly.

Action steps after you observe an illicit discharge

  • Document: take photos or video showing the flow, source (if safe), time, and location.
  • Report: submit the observation via the SPU reporting page or call the hotline immediately.[1]
  • Preserve evidence: do not disturb site evidence unless necessary for safety.
  • Follow up: request a case or incident number and note the investigator or staff contact for future reference.
Quick reporting speeds containment and reduces environmental harm.

FAQ

How do I report an illicit storm drain discharge?
Use the City of Seattle online reporting portal or call the Seattle Public Utilities hotline to report spills, discharges, or visible pollution into storm drains.
Will someone inspect after I report?
Yes. Seattle Public Utilities investigates reported discharges and may inspect the site, but specific inspection timelines are not specified on the cited page.
Are there fines for causing an illicit discharge?
Penalties may include fines and corrective orders; exact amounts and escalation details are not specified on the cited page.

How-To

  1. Identify and document the discharge location with photos, the nearest address or cross streets, time, and description.
  2. Report immediately using the SPU online reporting portal or hotline; request an incident number.
  3. Preserve evidence and avoid contact with contaminated water; warn others to stay away from the area.
  4. Follow up with SPU for investigation status and provide additional information if requested.
  5. If enforcement follows, review any orders or notices and, if needed, inquire about appeal options from the enforcing department.

Key Takeaways

  • Report any suspicious flow to Seattle Public Utilities promptly.
  • Document incidents with photos, location, and time to support enforcement.

Help and Support / Resources

  1. [1] City of Seattle - Report pollution or spill

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