Pacific Beach STP
3194 Ocean Beach Rd, Pacific Beach, WA 98571 · Grays Harbor County · Publicly Owned Treatment Works
- Average flow
- 0.16 MGD
- Design flow
- 0.77 MGD
- NPDES permit
- WA0037095
- Effective
- Permit expires
- August 2030
- Population served
- 2,003
- CWNS 2022
Pacific Beach STP is a publicly owned wastewater treatment works in Pacific Beach, Grays Harbor County, Washington treating an average of 0.16 million gallons per day against a permitted design capacity of 0.77 MGD, serving about 2,003 residents. It discharges under NPDES permit WA0037095 (effective), which expires in August 2030, with 36 recorded violations in the last three years.
Treatment technology
3 treatment structures and unit processes identified at Pacific Beach STP.
Available with a free Klarifi account
See the full treatment train at Pacific Beach STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 36
- Effluent violations
- 35
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Pacific Beach STP.
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Nearby wastewater treatment plants in Washington
Moclips · 3 mi away
0.02 MGD
Hoquiam · 21 mi away
1.19 MGD
Montesano · 32 mi away
0.27 MGD
Forks · 35 mi away
0.13 MGD
Raymond · 42 mi away
1.01 MGD
Littlerock · 54 mi away
0.05 MGD
Olympia · 60 mi away
0.03 MGD
Shelton · 60 mi away
0.000000032 MGD
Pacific Beach 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 November 20, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Centrate · Ozonation · all terms