Milltown Waterworks
EPA ID: WI6490339 · 915 people served · 4 ZIP codes
ZipCheckup's reading of EPA SDWIS for Milltown Waterworks (WI6490339): no EPA violations recorded in the last five years. Milltown Waterworks earns a clean bill from EPA monitoring - no violations in five years across a service area of 915 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Milltown Waterworks Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Milltown Waterworks serves a community with a median household income of $66,646 and an estimated 10,131 residents across its service area. Approximately 60% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Milltown Waterworks's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Wisconsin
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Milltown Waterworks (EPA ID: WI6490339) is a community water system in Wisconsin that serves approximately 915 people from groundwater sources.
This system provides water to 4 ZIP codes across 4 communities.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.003 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by WI or modeled from parcel and building-footprint data.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Milltown Waterworks (WI6490339) on EPA.gov.
Frequently Asked Questions
Is Milltown Waterworks water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Milltown Waterworks in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Milltown Waterworks serve?
Milltown Waterworks serves approximately 915 people across 4 ZIP codes in Wisconsin.
Where does Milltown Waterworks get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Milltown Waterworks Water Quality Report, WI. https://zipcheckup.com/water-system/wi6490339/
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title = {{Milltown Waterworks Water Quality Report, WI}},
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