Ollie, City Of STP
31931 270th Ave., Ollie, IA 52576 · Keokuk County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 0.02 MGD
- NPDES permit
- IA0083801
- Administratively continued
- Permit expires
- February 2020
- Population served
- —
- CWNS 2022
Ollie, City Of STP is a publicly owned wastewater treatment works in Ollie, Keokuk County, Iowa. It discharges under NPDES permit IA0083801 (administratively continued), which expires in February 2020, with 1 recorded violation in the last three years.
Treatment technology
One treatment structure or unit process identified at Ollie, City Of STP.
Available with a free Klarifi account
See the full treatment train at Ollie, City Of STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 1
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Ollie, City Of STP.
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Nearby wastewater treatment plants in Iowa
Packwood · 4 mi away
—
Richland · 6 mi away
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Martinsburg · 9 mi away
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Fairfield · 11 mi away
0.01 MGD
Harper · 11 mi away
—
Sigourney · 12 mi away
0.21 MGD
Hedrick · 13 mi away
0.11 MGD
Brighton · 13 mi away
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Ollie, 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 April 23, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Activated sludge · Oxidation ditch · all terms