Newport WWTP
Newport, WA · Pend Oreille County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 4 MGD
- NPDES permit
- WA0022322
- Administratively continued
- Permit expires
- April 2013
- Population served
- 2,803
- CWNS 2022
Newport WWTP is a publicly owned wastewater treatment works in Newport, Pend Oreille County, Washington, serving about 2,803 residents. Treatment on site includes clarifiers, carrousels / oxidation ditches. It discharges under NPDES permit WA0022322 (administratively continued), which expires in April 2013, with 21 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 21
- Effluent violations
- 21
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Newport WWTP.
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Nearby wastewater treatment plants in Washington
Chewelah · 33 mi away
0.19 MGD
Spokane · 40 mi away
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Ione · 42 mi away
—
Metaline Falls · 46 mi away
0.001 MGD
Colville · 47 mi away
0.62 MGD
Metaline · 49 mi away
0.02 MGD
Rockford · 51 mi away
0.00029 MGD
Medical Lake · 51 mi away
0.27 MGD
Newport WWTP: 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 September 11, 2026; facility record last updated May 29, 2025.