Worthington WWTP
4th St & 2nd Ave SW, Worthington, IA 52078 · Dubuque County · Publicly Owned Treatment Works
- Average flow
- 0.09 MGD
- Design flow
- 0.21 MGD
- NPDES permit
- IA0058548
- Effective
- Permit expires
- August 2027
- Population served
- 382
- CWNS 2022
Worthington WWTP is a publicly owned wastewater treatment works in Worthington, Dubuque County, Iowa treating an average of 0.09 million gallons per day against a permitted design capacity of 0.21 MGD, serving about 382 residents. It discharges under NPDES permit IA0058548 (effective), which expires in August 2027, with 21 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at Worthington WWTP.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 21
- Effluent violations
- 21
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Worthington WWTP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Worthington WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Iowa
Dyersville · 5 mi away
0.55 MGD
Farley · 7 mi away
0.24 MGD
Hopkinton · 7 mi away
0.05 MGD
Cascade · 9 mi away
0.19 MGD
Earlville · 10 mi away
0.08 MGD
New Vienna · 10 mi away
0.02 MGD
Delhi · 10 mi away
—
Monticello · 11 mi away
0.5 MGD
Worthington WWTP: 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 28, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Equalization tank · Centrate · all terms