Mediapolis City Of STP
510 Main Street, Mediapolis, IA 52637 · Des Moines County · Publicly Owned Treatment Works
- Average flow
- 0.17 MGD
- Design flow
- 0.85 MGD
- NPDES permit
- IA0025917
- Effective
- Permit expires
- July 2030
- Population served
- 1,688
- CWNS 2022
Mediapolis City Of STP is a publicly owned wastewater treatment works in Mediapolis, Des Moines County, Iowa treating an average of 0.17 million gallons per day against a permitted design capacity of 0.85 MGD, serving about 1,688 residents. It discharges under NPDES permit IA0025917 (effective), which expires in July 2030, with 66 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Mediapolis City Of STP.
Available with a free Klarifi account
See the full treatment train at Mediapolis City Of STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 66
- Effluent violations
- 45
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Mediapolis 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 Mediapolis City Of STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Iowa
Oakville · 8 mi away
—
Morning Sun · 9 mi away
0.12 MGD
Wapello · 11 mi away
0.25 MGD
Mount Union · 14 mi away
0.0038 MGD
Middletown · 14 mi away
0.04 MGD
Danville · 14 mi away
0.1 MGD
Burlington · 15 mi away
5.79 MGD
New London · 15 mi away
0.26 MGD
Mediapolis 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 October 8, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biological nutrient removal · Tertiary treatment · all terms