Dunkerton City Of STP
Highway 281, Dunkerton, IA 50626 · Black Hawk County · Publicly Owned Treatment Works
- Average flow
- 0.16 MGD
- Design flow
- —
- NPDES permit
- IA0042790
- Effective
- Permit expires
- June 2028
- Population served
- 842
- CWNS 2022
Dunkerton City Of STP is a publicly owned wastewater treatment works in Dunkerton, Black Hawk County, Iowa treating an average of 0.16 million gallons per day, serving about 842 residents. It discharges under NPDES permit IA0042790 (effective), which expires in June 2028, with 17 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Dunkerton City Of STP.
Available with a free Klarifi account
See the full treatment train at Dunkerton City Of STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 17
- Effluent violations
- 17
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for Dunkerton City Of STP, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Dunkerton City Of STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Iowa
Dewar · 5 mi away
—
Fairbank · 7 mi away
0.15 MGD
Jesup · 9 mi away
0.2 MGD
Readlyn · 9 mi away
0.12 MGD
Oran · 9 mi away
—
Denver · 11 mi away
0.28 MGD
Evansdale · 11 mi away
—
Gilbertville · 12 mi away
0.11 MGD
Dunkerton City Of 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 February 10, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · FOG · Equalization tank · all terms