Plainfield City Of STP
101 1st Street, Plainfield, IA 50666 · Bremer County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 0.04 MGD
- NPDES permit
- IA0033693
- Effective
- Permit expires
- August 2028
- Population served
- 393
- CWNS 2022
Plainfield City Of STP is a publicly owned wastewater treatment works in Plainfield, Bremer County, Iowa, serving about 393 residents. It discharges under NPDES permit IA0033693 (effective), which expires in August 2028, with 0 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Plainfield City Of STP.
Available with a free Klarifi account
See the full treatment train at Plainfield City Of STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Plainfield City Of STP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Plainfield City Of STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Iowa
Nashua · 7 mi away
0.22 MGD
Waverly · 10 mi away
1.42 MGD
Shell Rock · 11 mi away
0.16 MGD
Frederika · 12 mi away
—
Greene · 13 mi away
0.09 MGD
Tripoli · 14 mi away
0.26 MGD
Janesville · 15 mi away
0.06 MGD
Allison · 15 mi away
0.31 MGD
Plainfield 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 September 27, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biosolids · Filter press · all terms