Oakton Beach
EPA ID: WI2681086 · 144 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Oakton Beach (WI2681086): 2 violations on record since 2021. Over the period covered by EPA data, Oakton Beach recorded 2 violations, each listed as resolved; the utility serves 144 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Oakton Beach Source: EPA SDWIS service area boundaries.
Service area boundary - average Home Safety grade of mapped ZIPs: B
Demographics of ZIP Codes Served
The ZIP codes associated with Oakton Beach have a median household income of $86,806 and about 7,647 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 81% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 49% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
Oakton Beach's water is classified in EPA records as a groundwater source. 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.
Superfund Proximity Note: This service area ranks in the 60th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Wisconsin
System Overview
Oakton Beach (EPA ID: WI2681086) is a community water system in Wisconsin that serves approximately 144 people from groundwater sources.
This system serves ZIP code 53130 in Hales Corners.
ZIP-Area Home Safety Context: B (83/100)
This is the average Home Safety Score for 1 of 1 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.
Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.
Violation History
Status breakdown for accepted records with record years 2021-2026: 0 resolved, 2 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, 2023 | TTHM | Non-health-based | Archived |
| January 1, 2023 | Total Haloacetic Acids (HAA5) | Non-health-based | Archived |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Total Haloacetic Acids (HAA5) | Monitoring & Reporting | 1 | No |
| TTHM | Monitoring & Reporting | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0016 mg/L | No | 2024-09-30 |
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
1 of 1 ZIP records with known zones is in EPA Radon Zone 2.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
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.
- 53130 - Hales Corners
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Oakton Beach (WI2681086) on EPA.gov.
Frequently Asked Questions
Is Oakton Beach water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Oakton Beach; its 2 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Oakton Beach serve?
Oakton Beach serves approximately 144 people across 1 ZIP code in Wisconsin.
Where does Oakton Beach get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Oakton Beach (WI): 2 EPA Violations. https://zipcheckup.com/water-system/wi2681086/
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author = {{ZipCheckup}},
title = {{Oakton Beach (WI): 2 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/wi2681086/}
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What You Can Do
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Contact your utility
Oakton Beach (EPA ID: WI2681086) - request the latest Consumer Confidence Report or ask about specific contaminants.