Portage Lake Authority WWTP
100 Princess Pt Dr Box 36Z, Houghton, MI 49931 · Houghton County · Publicly Owned Treatment Works
- Average flow
- 2.04 MGD
- Design flow
- —
- NPDES permit
- MI0020061
- Effective
- Permit expires
- October 2027
- Population served
- 12,175
- CWNS 2022
Portage Lake Authority WWTP is a publicly owned wastewater treatment works in Houghton, Houghton County, Michigan treating an average of 2.04 million gallons per day, serving about 12,175 residents. It discharges under NPDES permit MI0020061 (effective), which expires in October 2027, with 9 recorded violations in the last three years.
Treatment technology
3 treatment structures and unit processes identified at Portage Lake Authority WWTP.
Available with a free Klarifi account
See the full treatment train at Portage Lake Authority 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
1 verified contact for Portage Lake Authority WWTP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Portage Lake Authority WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Michigan
Atlantic Mine · 6 mi away
1.26 MGD
South Range · 6 mi away
1 MGD
Chassell · 7 mi away
—
Painesdale · 8 mi away
1.98 MGD
Baraga · 24 mi away
2.91 MGD
Mohawk · 25 mi away
—
Mass City · 36 mi away
1.7 MGD
Copper Harbor · 39 mi away
0.03 MGD
Portage Lake Authority 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 19, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biosolids · Filter press · all terms