Hillsboro North WWTF
Route 21 And Hayden Road, Hillsboro, MO 63050 · Jefferson County · Publicly Owned Treatment Works
- Average flow
- 0.09 MGD
- Design flow
- —
- NPDES permit
- MO0129046
- Effective
- Permit expires
- March 2028
- Population served
- 500
- CWNS 2022
Hillsboro North WWTF is a publicly owned wastewater treatment works in Hillsboro, Jefferson County, Missouri treating an average of 0.09 million gallons per day, serving about 500 residents. It discharges under NPDES permit MO0129046 (effective), which expires in March 2028, with 18 recorded violations in the last three years.
Treatment technology
3 treatment structures and unit processes identified at Hillsboro North WWTF.
Available with a free Klarifi account
See the full treatment train at Hillsboro North WWTF: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 18
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Hillsboro North WWTF.
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Nearby wastewater treatment plants in Missouri
Hillsboro · 2 mi away
0.22 MGD
Hillsboro · 3 mi away
0.36 MGD
Hillsboro · 3 mi away
0.0037 MGD
Hillsboro · 4 mi away
0.01 MGD
Hillsboro · 5 mi away
0.0037 MGD
Hillsboro · 5 mi away
0.0087 MGD
Hillsboro · 5 mi away
0.03 MGD
Pevely · 5 mi away
0.0043 MGD
Hillsboro North WWTF: 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 September 3, 2024.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms