Port Orchard WWTP
Port Orchard, WA · Kitsap County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- —
- NPDES permit
- WAG994523
- Effective
- Permit expires
- December 2026
- Population served
- 13,095
- CWNS 2022
Port Orchard WWTP is a publicly owned wastewater treatment works in Port Orchard, Kitsap County, Washington, serving about 13,095 residents. Treatment on site includes clarifiers, biogas balloons. It discharges under NPDES permit WAG994523 (effective), which expires in December 2026, with 4 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
- 4
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Port Orchard WWTP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Port Orchard WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Washington
Port Orchard · 3 mi away
—
Bainbridge Island · 8 mi away
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Seattle · 12 mi away
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Seattle · 12 mi away
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Suquamish · 13 mi away
0.16 MGD
Kingston · 17 mi away
—
Renton · 18 mi away
—
Shelton · 23 mi away
0.000000013 MGD
Port Orchard 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 July 3, 2025.