Cowlitz Indian Tribe - Lewis County WWTF
Jackson Hwy And Buckley Rd, Toledo, WA 98591 · Lewis County · Publicly Owned Treatment Works
- Average flow
- 0.002 MGD
- Design flow
- 0.01 MGD
- NPDES permit
- WA0040258
- Effective
- Permit expires
- January 2031
- Population served
- —
- CWNS 2022
Cowlitz Indian Tribe - Lewis County WWTF is a publicly owned wastewater treatment works in Toledo, Lewis County, Washington treating an average of 0.002 million gallons per day against a permitted design capacity of 0.01 MGD. It discharges under NPDES permit WA0040258 (effective), which expires in January 2031, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at Cowlitz Indian Tribe - Lewis County WWTF.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Cowlitz Indian Tribe - Lewis County WWTF.
No verified contacts on file yet
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Nearby wastewater treatment plants in Washington
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Toutle · 11 mi away
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Mossyrock · 12 mi away
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Ryderwood · 13 mi away
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Castle Rock · 15 mi away
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Pe Ell · 24 mi away
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Cowlitz Indian Tribe - Lewis County WWTF: frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed October 26, 2026; facility record last updated January 29, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biosolids · Filter press · all terms