Ely WWTP
47 Chandler Rd N, Ely, MN 55731 · St. Louis County · Publicly Owned Treatment Works
- Average flow
- 0.61 MGD
- Design flow
- 1.5 MGD
- NPDES permit
- MN0020508
- Effective
- Permit expires
- May 2031
- Population served
- 3,661
- CWNS 2022
Ely WWTP is a publicly owned wastewater treatment works in Ely, St. Louis County, Minnesota treating an average of 0.61 million gallons per day against a permitted design capacity of 1.5 MGD, serving about 3,661 residents. It discharges under NPDES permit MN0020508 (effective), which expires in May 2031, with 9 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Ely WWTP.
Available with a free Klarifi account
See the full treatment train at Ely WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 9
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Ely WWTP.
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Winton · 3 mi away
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Babbitt · 15 mi away
0.2 MGD
Soudan · 19 mi away
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Tower · 23 mi away
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Hoyt Lakes · 31 mi away
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Aurora · 32 mi away
0.24 MGD
Biwabik · 35 mi away
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Mckinley · 37 mi away
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Ely 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 March 6, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms