Island Estates
EPA ID: WI6320638 · 50 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Island Estates (WI6320638): 2 unresolved EPA violations on record. Tallying the federal enforcement file for Island Estates yields 2 open violations that have not been formally closed - each finding sits in the EPA database while the utility continues to deliver water to approximately 50 residents and works through the required corrective action process.
Data: EPA SDWIS
Service Area Map
Coverage area for Island Estates Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Island Estates serves a community with a median household income of $49,693 and an estimated 14,181 residents across its service area. Approximately 78% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Island Estates'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 Island Estates compares to EPA limits
What This Means For You
Surface Water Treatment Rule at 7 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. 7 detections recorded. 2 exceed federal EPA limits (4 ppt for PFOA/PFOS).
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
Island Estates (EPA ID: WI6320638) is a community water system in Wisconsin that serves approximately 50 people from groundwater sources.
This system serves ZIP code 54603 in La Crosse.
Violation History
Status breakdown for accepted records with record years 2021-2026: 7 resolved, 0 archived, 0 addressed, and 2 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 30, 2025 | Surface Water Treatment Rule | Non-health-based | Resolved |
| July 1, 2025 | Surface Water Treatment Rule | Non-health-based | Resolved |
| July 1, 2025 | Surface Water Treatment Rule | Non-health-based | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Unaddressed (current) |
| October 17, 2024 | Lead and Copper Rule | Non-health-based | Unaddressed (current) |
| July 1, 2024 | Surface Water Treatment Rule | Non-health-based | Resolved |
| July 1, 2024 | Surface Water Treatment Rule | Non-health-based | Resolved |
| July 1, 2023 | Surface Water Treatment Rule | Non-health-based | Resolved |
| July 1, 2023 | Surface Water Treatment 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 |
|---|---|---|---|
| Surface Water Treatment Rule | Treatment Failure | 7 | 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 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.
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.
- 54603 - La Crosse
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Island Estates (WI6320638) on EPA.gov.
Frequently Asked Questions
Is Island Estates water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 1 current health-based noncompliance record for Island Estates. Review the utility's current notices and EPA record. This system-level compliance history cannot determine conditions at a specific tap.
How many people does Island Estates serve?
Island Estates serves approximately 50 people across 1 ZIP code in Wisconsin.
Where does Island Estates get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Island Estates (WI): 1 Health Violation. https://zipcheckup.com/water-system/wi6320638/
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author = {{ZipCheckup}},
title = {{Island Estates (WI): 1 Health Violation}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/wi6320638/}
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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
Island Estates (EPA ID: WI6320638) - request the latest Consumer Confidence Report or ask about specific contaminants.