Janesville Wastewater Utility
Tripp Road, Janesville, WI 53546 · Rock County · Publicly Owned Treatment Works
- Average flow
- 11.03 MGD
- Design flow
- 17.18 MGD
- NPDES permit
- WI0030350
- Expired
- Permit expires
- June 2025
- Population served
- 63,000
- CWNS 2022
Janesville Wastewater Utility is a publicly owned wastewater treatment works in Janesville, Rock County, Wisconsin treating an average of 11.03 million gallons per day against a permitted design capacity of 17.18 MGD, serving about 63,000 residents. It discharges under NPDES permit WI0030350 (expired), which expires in June 2025, with 0 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in January 2018.
Treatment technology
3 treatment structures and unit processes identified at Janesville Wastewater Utility.
Available with a free Klarifi account
See the full treatment train at Janesville Wastewater Utility: 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.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Janesville Wastewater Utility in EPA's ICIS system.
- Formal actions
- 1
- 0 since FY2020
- Compliance actions
- $25,000
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Jan 2018
CITY OF JANESVILLE WWTP
Administrative order · CWA, NPDES Permit Violations · Final Order No Penalty · Compliance actions $25,000
EPA's description of the case:
“AO to eliminate SSOs and basement backups”
Source: EPA ECHO, civil enforcement case 05-2011-0313.
Full case history with a free Klarifi account
Every action against Janesville Wastewater Utility with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
9 verified contacts for Janesville Wastewater Utility, with validated emails and direct phone numbers.
Unlock 9 verified contacts (6 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Janesville Wastewater Utility, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Wisconsin
Hanover · 4 mi away
0.02 MGD
Beloit · 5 mi away
0.58 MGD
Footville · 8 mi away
0.08 MGD
Beloit · 10 mi away
4.15 MGD
Clinton · 11 mi away
0.26 MGD
Milton · 12 mi away
0.33 MGD
Edgerton · 13 mi away
0.53 MGD
Evansville · 15 mi away
0.15 MGD
Janesville Wastewater Utility: 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 13, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Oxidation ditch · Anaerobic digester · all terms