Delafield Hartland Pollution C
415 Butler Drive, Delafield, WI 53018 · Waukesha County · Publicly Owned Treatment Works
- Average flow
- 2.24 MGD
- Design flow
- 2.2 MGD
- NPDES permit
- WI0032026
- Expired
- Permit expires
- September 2025
- Population served
- 19,751
- CWNS 2022
Delafield Hartland Pollution C is a publicly owned wastewater treatment plant in Delafield, Waukesha County, Wisconsin treating an average of 2.24 million gallons per day against a permitted design capacity of 2.2 MGD, serving about 19,751 residents. It discharges under NPDES permit WI0032026 (expired), which expires in September 2025, with 1 recorded violation in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Delafield Hartland Pollution C.
Available with a free Klarifi account
See the full treatment train at Delafield Hartland Pollution C: structures, unit processes and planned upgrades, with exact unit counts.
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
3 verified contacts for Delafield Hartland Pollution C, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Delafield Hartland Pollution C, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Wisconsin
Dousman · 4 mi away
0.2 MGD
Oconomowoc · 6 mi away
—
Waukesha · 9 mi away
3.33 MGD
Sussex · 11 mi away
2.75 MGD
Ixonia · 11 mi away
—
Brookfield · 12 mi away
10.11 MGD
Ashippun · 12 mi away
0.15 MGD
Palmyra · 15 mi away
0.16 MGD
Delafield Hartland Pollution C: 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 May 29, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biosolids · Filter press · all terms