Odessa STP
601 W Alice Ave, Odessa, WA 99159 · Lincoln County · Publicly Owned Treatment Works
- Average flow
- 0.04 MGD
- Design flow
- 1.38 MGD
- NPDES permit
- WA0045560
- Administratively continued
- Permit expires
- June 2015
- Population served
- 1,572
- CWNS 2022
Odessa STP is a publicly owned wastewater treatment works in Odessa, Lincoln County, Washington treating an average of 0.04 million gallons per day against a permitted design capacity of 1.38 MGD, serving about 1,572 residents. It discharges under NPDES permit WA0045560 (administratively continued), which expires in June 2015, with 37 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at Odessa STP.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 37
- Effluent violations
- 4
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Odessa STP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Washington
Wilbur · 30 mi away
—
Davenport · 35 mi away
0.16 MGD
Othello · 43 mi away
0.89 MGD
Grand Coulee · 44 mi away
0.2 MGD
Reardan · 45 mi away
0.06 MGD
Medical Lake · 51 mi away
0.38 MGD
Saint John · 55 mi away
0.07 MGD
Endicott · 55 mi away
0.08 MGD
Odessa STP: 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 May 29, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms