Washington / Reports /

Sanitary sewer overflow (SSO) reported — Stevenson STP, Aug 31, 2026

Ended (as reported) · Washington State Department of Ecology (sewage spill list, RCW 90.48.636)

Source: Washington State Department of Ecology (sewage spill list, RCW 90.48.636) via Washington Ecology Sewage Spills list (RCW 90.48.636 public website), record 9d9c9a48-e898-4b7d-8630-6b6000148a34, the source gives no report time, retrieved 2026-11-06 06:01 UTC · Read the original notice

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1. Reported wastewater outlet

Operator named in the record: Stevenson STP (federal wastewater discharge permit, NPDES, WA0020672). Outlet: “500 block of SW Rock Creek Dr.”. Location: not given in the report or in the outlet records.

Outfall: a pipe or outlet where wastewater enters a water body.

2. Waters named in the notice

The notice names no water. DirtyWaterWatch links this report to Columbia River, WA. Match basis: the operator's listed receiving water; the report itself does not name the water.

3. Estimated downstream stretch

No downstream estimate is available for this report.

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When it happened and when it was reported

Event and notice times use Eastern Time (EST or EDT). Retrieval times use Coordinated Universal Time (UTC).

Started

Aug 31, 2026, 3:00 AM EDT

Ended

Aug 31, 2026, 9:11 AM EDT

Detail provided by the source

Times known to the minute

Reported to the source

not given

Published

not given

Source last updated

not given

Last retrieved by DirtyWaterWatch

2026-11-06 06:01 UTC

What and how much

Type

Sanitary sewer overflow (SSO): sewage spills from a sewer meant to carry sewage separately from rainwater.

Status in the record

Ended (as reported)

Material

“None (Raw Sewage)”

Volume

700 gallons (not stated whether estimated or measured)

Volume as reported

“700 gallons”

Advice from Washington State Department of Ecology (sewage spill list, RCW 90.48.636)

This report includes no advice. Check current local health notices.

Advice period

This report does not state a period. See the rule DirtyWaterWatch applies and its source.

Basis

not stated

Status history from this report

• Discharge or advisory reported Columbia River: Discharge reported ongoing, Aug 31, 2026, 3:00 AM EDT to Aug 31, 2026, 9:11 AM EDT
• Caution Columbia River: Within the caution period after the reported end, Aug 31, 2026, 9:11 AM EDT to Sep 3, 2026, 9:11 AM EDT

Source: DirtyWaterWatch calculations using this report and the published status rules. Updated 2026-11-06 06:13 UTC.

Source and versions

Source

Washington Ecology Sewage Spills list (RCW 90.48.636 public website)

Source record number

9d9c9a48-e898-4b7d-8630-6b6000148a34

Original notice

Read the original notice

Earlier version

None: this is the first record

Later versions

None

{
  "row": {
    "objectid": 62,
    "globalid": "{9D9C9A48-E898-4B7D-8630-6B6000148A34}",
    "ecology_region": "Southwest",
    "start_date_and_time": 1788159600000,
    "permitee": "Stevenson STP",
    "location": "500 block of SW Rock Creek Dr.",
    "county": "Skamania",
    "initial_estimated_amount": "800 gallons",
    "level_of_treatment": "None (Raw Sewage)",
    "potentially_impacted_area": "Unknown/Not Reported",
    "end_event_timedate": 1788181860000,
    "final_event_duration_hours": "Unknown/Not Reported",
    "final_total_event_volume": "700 gallons",
    "link_to_5_day_report": null,
    "event_type": null,
    "event_type_other": null,
    "erts_number": "749616",
    "was_the_spill_continuous": "Unknown/not reported"
  },
  "potentially_impacted_area": "Unknown/Not Reported",
  "reached_water": null,
  "report_url": null,
  "erts_number": "749616",
  "county": "Skamania",
  "duration_text": "Unknown/Not Reported",
  "continuous": "Unknown/not reported"
}