Pacific WWTP
Pacific, MO · Franklin County · Publicly Owned Treatment Works
- Average flow
- 0.85 MGD
- Design flow
- —
- NPDES permit
- MO0041131
- Administratively continued
- Permit expires
- September 2022
- Population served
- 6,780
- CWNS 2022
Pacific WWTP is a publicly owned wastewater treatment works in Pacific, Franklin County, Missouri treating an average of 0.85 million gallons per day, serving about 6,780 residents. Treatment on site includes aerated lagoons, covered lagoons, uncovered lagoons, attached growth, aerobic, disinfection, uv and other unit processes. It discharges under NPDES permit MO0041131 (administratively continued), which expires in September 2022, with 57 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Aerated lagoons
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Covered lagoons
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Uncovered lagoons
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Attached Growth, Aerobic
unit processDisinfection, UV
unit processLagoon, Aerobic
unit processScreening
unit processUnlock exact unit counts →
Compliance snapshot (last 3 years)
- Total violations
- 57
- Effluent violations
- 39
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Pacific WWTP.
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Nearby wastewater treatment plants in Missouri
Pacific · 2 mi away
0.0085 MGD
Catawissa · 3 mi away
0.03 MGD
Pacific · 3 mi away
0.01 MGD
Gray Summit · 4 mi away
0.02 MGD
Robertsville · 4 mi away
0.003 MGD
Gray Summit · 4 mi away
0.007 MGD
Gray Summit · 4 mi away
0.1 MGD
Pacific · 5 mi away
0.008 MGD
Pacific 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 April 24, 2025.