St Croix Falls Waterworks
EPA ID: WI6490343 · 2,079 people served · 3 ZIP codes
ZipCheckup's reading of EPA SDWIS for St Croix Falls Waterworks (WI6490343): 1 EPA violation in the last five years. EPA records: St Croix Falls Waterworks, 1 past violation, all resolved, 2,079 served.
Data: EPA SDWIS
Service Area Map
Coverage area for St Croix Falls Waterworks Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The St Croix Falls Waterworks serves a community with a median household income of $76,455 and an estimated 9,812 residents across its service area. Approximately 52% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
St Croix Falls 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
Detected Contaminants
How St Croix Falls Waterworks compares to EPA limits
What This Means For You
Stage 1 DBP Rule at 1 mg/L exceeds the EPA maximum of mg/L.
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
St Croix Falls Waterworks (EPA ID: WI6490343) is a community water system in Wisconsin that serves approximately 2,079 people from groundwater sources.
This system provides water to 3 ZIP codes across 3 communities.
Violation History
Status breakdown for accepted records with record years 2021-2026: 1 resolved, 0 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| January 1, 2024 | Stage 1 DBP Rule | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Stage 1 DBP Rule | Treatment Failure | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0047 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 St Croix Falls Waterworks (WI6490343) on EPA.gov.
Frequently Asked Questions
Is St Croix Falls Waterworks water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for St Croix Falls Waterworks; its 1 accepted 2021-2026 record are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does St Croix Falls Waterworks serve?
St Croix Falls Waterworks serves approximately 2,079 people across 3 ZIP codes in Wisconsin.
Where does St Croix Falls Waterworks get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). St Croix Falls Waterworks (WI): 1 EPA Violation. https://zipcheckup.com/water-system/wi6490343/
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title = {{St Croix Falls Waterworks (WI): 1 EPA Violation}},
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url = {https://zipcheckup.com/water-system/wi6490343/}
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What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
St Croix Falls Waterworks (EPA ID: WI6490343) - request the latest Consumer Confidence Report or ask about specific contaminants.