Thor City Of STP
Thor, IA 50591 · Humboldt County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- —
- NPDES permit
- IA0058581
- Effective
- Permit expires
- December 2026
- Population served
- 181
- CWNS 2022
Thor City Of STP is a publicly owned wastewater treatment works in Thor, Humboldt County, Iowa, serving about 181 residents. It discharges under NPDES permit IA0058581 (effective), which expires in December 2026, with 0 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Thor City Of STP.
Available with a free Klarifi account
See the full treatment train at Thor 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 Thor 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 Thor City Of STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Iowa
Goldfield · 6 mi away
0.09 MGD
Vincent · 7 mi away
—
Eagle Grove · 7 mi away
1.93 MGD
Badger · 8 mi away
—
Dakota City · 8 mi away
0.1 MGD
Humboldt · 9 mi away
0.72 MGD
Renwick · 10 mi away
0.04 MGD
Rutland · 13 mi away
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Thor 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 26, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · WWTP · Biosolids · all terms