Hawley-Treatment Plant #1
County Road 31, Hawley, MN 56549 · Clay County · Publicly Owned Treatment Works
- Average flow
- 0.17 MGD
- Design flow
- 0.33 MGD
- NPDES permit
- MN0020338
- Effective
- Permit expires
- December 2029
- Population served
- 2,261
- CWNS 2022
Hawley-Treatment Plant #1 is a publicly owned wastewater treatment works in Hawley, Clay County, Minnesota treating an average of 0.17 million gallons per day against a permitted design capacity of 0.33 MGD, serving about 2,261 residents. It discharges under NPDES permit MN0020338 (effective), which expires in December 2029, with 16 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Hawley-Treatment Plant #1.
Available with a free Klarifi account
See the full treatment train at Hawley-Treatment Plant #1: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 16
- Effluent violations
- 9
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
3 verified contacts for Hawley-Treatment Plant #1, with validated emails and direct phone numbers.
Unlock 3 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Hawley-Treatment Plant #1, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Minnesota
Hitterdal · 8 mi away
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Lake Park · 10 mi away
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Glyndon · 11 mi away
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Audubon · 15 mi away
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Barnesville · 16 mi away
1.26 MGD
Ulen Township · 16 mi away
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Felton Township · 18 mi away
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Sabin · 18 mi away
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Hawley-Treatment Plant #1: 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 10, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms