Janesville City Of STP
0.6 Mi SE Of Taylor Rd & Marquis Rd W Intersection, Janesville, IA 50647 · Bremer County · Publicly Owned Treatment Works
- Average flow
- 0.06 MGD
- Design flow
- 0.17 MGD
- NPDES permit
- IA0026506
- Effective
- Permit expires
- August 2031
- Population served
- 1,034
- CWNS 2022
Janesville City Of STP is a publicly owned wastewater treatment works in Janesville, Bremer County, Iowa treating an average of 0.06 million gallons per day against a permitted design capacity of 0.17 MGD, serving about 1,034 residents. It discharges under NPDES permit IA0026506 (effective), which expires in August 2031, with 1 recorded violation in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Janesville City Of STP.
Available with a free Klarifi account
See the full treatment train at Janesville 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 Janesville City Of STP.
No verified contacts on file yet
Klarifi verifies plant and municipal decision-makers continuously. Start a free trial to browse contacts at nearby plants and flag this one for verification.
Nearby wastewater treatment plants in Iowa
Waverly · 5 mi away
1.42 MGD
Shell Rock · 7 mi away
0.16 MGD
Denver · 7 mi away
0.28 MGD
Cedar Falls · 7 mi away
4.83 MGD
Readlyn · 13 mi away
0.12 MGD
Dike · 14 mi away
—
Dike · 14 mi away
0.18 MGD
Evansdale · 15 mi away
—
Janesville 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 March 28, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Equalization tank · Centrate · all terms