Hudson Waterworks
EPA ID: WI6560087 · 18,558 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Hudson Waterworks (WI6560087): 1 unresolved EPA violation on record. Tallying the federal enforcement file for Hudson Waterworks yields 1 open violation that has not been formally closed - each finding sits in the EPA database while the utility continues to deliver water to approximately 18,558 residents and works through the required corrective action process.
Data: EPA SDWIS
Service Area Map
Coverage area for Hudson Waterworks Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Hudson Waterworks serves a community with a median household income of $111,402 and an estimated 33,784 residents across its service area.
💧 Where Does Your Water Come From?
Hudson 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 Hudson 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.
Stage 2 DBP Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Lead and Copper Rule at 1 mg/L exceeds the EPA maximum of mg/L.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 1 detection recorded.
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
Hudson Waterworks (EPA ID: WI6560087) is a community water system in Wisconsin that serves approximately 18,558 people from groundwater sources.
This system serves ZIP code 54016 in Hudson.
Violation History
Status breakdown for accepted records with record years 2021-2026: 2 resolved, 0 archived, 0 addressed, and 1 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 |
|---|---|---|---|
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Resolved |
| October 17, 2024 | Lead and Copper Rule | Non-health-based | Unaddressed (current) |
| 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 |
| Stage 2 DBP Rule | Treatment Failure | 1 | Yes |
| Lead and Copper 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 |
|---|---|---|
| 0.0061 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 1 (High 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.
- 54016 - Hudson
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Hudson Waterworks (WI6560087) on EPA.gov.
Frequently Asked Questions
Is Hudson Waterworks water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 1 current noncompliance record and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.
How many people does Hudson Waterworks serve?
Hudson Waterworks serves approximately 18,558 people across 1 ZIP code in Wisconsin.
Where does Hudson Waterworks get its water?
The primary water source is groundwater.
Federal UCMR5 PFAS Monitoring: Detected
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). PFAS compounds were detected below the current state-enforceable MCL.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
How Water Systems Appear in Rankings
Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.
- #18 / 50 Highest Exposure Burden (Wisconsin)
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Hudson Waterworks (WI): 1 Health Violation. https://zipcheckup.com/water-system/wi6560087/
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author = {{ZipCheckup}},
title = {{Hudson Waterworks (WI): 1 Health Violation}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/wi6560087/}
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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
Hudson Waterworks (EPA ID: WI6560087) - request the latest Consumer Confidence Report or ask about specific contaminants.