Heart Of The Valley Metro Sewage District
Kaukauna, WI · Outagamie County · Publicly Owned Treatment Works
- Average flow
- 2.21 MGD
- Design flow
- 5.5 MGD
- NPDES permit
- WI0031232
- Expired
- Permit expires
- December 2023
- Population served
- 49,948
- CWNS 2022
Heart Of The Valley Metro Sewage District is a publicly owned wastewater treatment works in Kaukauna, Outagamie County, Wisconsin treating an average of 2.21 million gallons per day against a permitted design capacity of 5.5 MGD, serving about 49,948 residents. Treatment on site includes clarifiers, biogas silos, biogas balloons, cooling towers. It discharges under NPDES permit WI0031232 (expired), which expires in December 2023, with 1 recorded violation in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Biogas silos
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Biogas balloons
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Cooling towers
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Compliance snapshot (last 3 years)
- Total violations
- 1
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for Heart Of The Valley Metro Sewage District, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Heart Of The Valley Metro Sewage District, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Wisconsin
Holland · 5 mi away
0.25 MGD
Wrightstown · 6 mi away
—
Appleton · 6 mi away
9.25 MGD
Greenleaf · 7 mi away
0.09 MGD
Woodville · 8 mi away
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Kaukauna · 8 mi away
0.28 MGD
Brillion · 8 mi away
—
Hilbert · 11 mi away
0.2 MGD
Heart Of The Valley Metro Sewage District: 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 September 11, 2026; facility record last updated April 13, 2025.