Pomeroy City Of STP
1001 E. Harrison Street, Pomeroy, IA 50575 · Calhoun County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 0.09 MGD
- NPDES permit
- IA0032824
- Effective
- Permit expires
- July 2028
- Population served
- 692
- CWNS 2022
Pomeroy City Of STP is a publicly owned wastewater treatment works in Pomeroy, Calhoun County, Iowa, serving about 692 residents. It discharges under NPDES permit IA0032824 (effective), which expires in July 2028, with 4 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Pomeroy City Of STP.
Available with a free Klarifi account
See the full treatment train at Pomeroy City Of STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 4
- Effluent violations
- 4
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Pomeroy City Of STP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Pomeroy City Of STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Iowa
Rockwell City · 6 mi away
—
Palmer · 6 mi away
—
Manson · 8 mi away
0.08 MGD
Fonda · 8 mi away
0.06 MGD
Rockwell City · 10 mi away
0.32 MGD
Pocahontas · 13 mi away
0.28 MGD
Lytton · 13 mi away
0.17 MGD
Barnum · 15 mi away
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Pomeroy 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 April 23, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · WWTP · Biosolids · all terms