Cross Plains Waterworks
1000 Main Street, Cross Plains, WI 53528 · Dane County · Publicly Owned Treatment Works
- Average flow
- 0.35 MGD
- Design flow
- 0.45 MGD
- NPDES permit
- WI0020788
- Expired
- Permit expires
- December 2025
- Population served
- 3,460
- CWNS 2022
Cross Plains Waterworks is a publicly owned wastewater treatment plant in Cross Plains, Dane County, Wisconsin treating an average of 0.35 million gallons per day against a permitted design capacity of 0.45 MGD, serving about 3,460 residents. It discharges under NPDES permit WI0020788 (expired), which expires in December 2025, with 0 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Cross Plains Waterworks.
Available with a free Klarifi account
See the full treatment train at Cross Plains Waterworks: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Cross Plains
Cross Plains's capital improvement plan lists 1 water, sewer and wastewater line items worth $3M starting 2027–2027. The largest budgeted items are shown here.
| Project | Budget | Years |
|---|---|---|
| Wastewater Treatment Facility updates | $2,700,000 | 2027–2027 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
Decision-makers at Cross Plains Waterworks.
No verified contacts on file yet
Klarifi verifies plant and municipal decision-makers continuously. Start a free trial to browse contacts at nearby plants and flag this one for verification.
Nearby wastewater treatment plants in Wisconsin
Mazomanie · 9 mi away
0.34 MGD
Mount Horeb · 10 mi away
—
Sauk City · 10 mi away
0.02 MGD
Blue Mounds · 11 mi away
0.04 MGD
Lodi · 16 mi away
0.33 MGD
Madison · 16 mi away
39.37 MGD
Ridgeway · 18 mi away
0.04 MGD
Belleville · 19 mi away
0.18 MGD
Cross Plains Waterworks: 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 February 27, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms