Fox Island Mutual Water Assoc
EPA ID: WA5326300 · 3,255 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Fox Island Mutual Water Assoc (WA5326300): no EPA violations recorded in the last five years. In the most recent five-year monitoring window, Fox Island Mutual Water Assoc posted zero EPA violations serving 3,255 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Fox Island Mutual Water Assoc Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Fox Island Mutual Water Assoc serves a community with a median household income of $172,917 and an estimated 3,365 residents across its service area. Approximately 40% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Fox Island Mutual Water Assoc'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.
Superfund Proximity Note: This service area ranks in the 80th 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 Washington
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
Fox Island Mutual Water Assoc (EPA ID: WA5326300) is a community water system in Washington that serves approximately 3,255 people from groundwater sources.
This system serves ZIP code 98333 in Fox Island.
Violation History
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.
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 3 (Low Risk)
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 WA or modeled from parcel and building-footprint data.
- 98333 - Fox Island
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Fox Island Mutual Water Assoc (WA5326300) on EPA.gov.
Frequently Asked Questions
Is Fox Island Mutual Water Assoc water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Fox Island Mutual Water Assoc 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 Fox Island Mutual Water Assoc serve?
Fox Island Mutual Water Assoc serves approximately 3,255 people across 1 ZIP code in Washington.
Where does Fox Island Mutual Water Assoc get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Fox Island Mutual Water Assoc Water Quality Report, WA. https://zipcheckup.com/water-system/wa5326300/
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title = {{Fox Island Mutual Water Assoc Water Quality Report, WA}},
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url = {https://zipcheckup.com/water-system/wa5326300/}
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