Boyden City Of STP
609 Webb St, Boyden, IA 51234 · Sioux County · Publicly Owned Treatment Works
- Average flow
- 0.15 MGD
- Design flow
- 0.45 MGD
- NPDES permit
- IA0042838
- Effective
- Permit expires
- March 2031
- Population served
- 701
- CWNS 2022
Boyden City Of STP is a publicly owned wastewater treatment works in Boyden, Sioux County, Iowa treating an average of 0.15 million gallons per day against a permitted design capacity of 0.45 MGD, serving about 701 residents. It discharges under NPDES permit IA0042838 (effective), which expires in March 2031, with 33 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Boyden City Of STP.
Available with a free Klarifi account
See the full treatment train at Boyden City Of STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 33
- Effluent violations
- 31
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Boyden 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 Boyden City Of STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Iowa
Hull · 5 mi away
0.21 MGD
Sheldon · 8 mi away
0.9 MGD
George · 10 mi away
0.08 MGD
Sioux Center · 10 mi away
0.97 MGD
Hospers · 10 mi away
0.24 MGD
Doon · 12 mi away
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Orange City · 13 mi away
0.85 MGD
Ashton · 14 mi away
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Boyden 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 August 18, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Equalization tank · Centrate · all terms