Clontarf WWTP
Highway 9, Clontarf Township, MN 56226 · Swift County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 0.02 MGD
- NPDES permit
- MNG585108
- Effective
- Permit expires
- November 2028
- Population served
- —
- CWNS 2022
Clontarf WWTP is a publicly owned wastewater treatment works in Clontarf Township, Swift County, Minnesota. It discharges under NPDES permit MNG585108 (effective), which expires in November 2028, with 8 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Clontarf WWTP.
Available with a free Klarifi account
See the full treatment train at Clontarf WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 8
- Effluent violations
- 8
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Clontarf WWTP.
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Nearby wastewater treatment plants in Minnesota
Benson · 4 mi away
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Danvers · 8 mi away
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Hancock · 10 mi away
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De Graff · 13 mi away
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Murdock · 16 mi away
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Morris · 17 mi away
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Starbuck · 18 mi away
0.18 MGD
Sunburg · 21 mi away
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Clontarf 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 27, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Centrate · Ozonation · all terms