Peninsula Mobile Park
EPA ID: WA5366914 · 92 people served · 1 ZIP code
Zero violations in five consecutive years of EPA monitoring — Peninsula Mobile Park has held a clean track record across every reporting cycle in that span, with no enforcement activity of any kind on file for the full service population of 92 residents.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Peninsula Mobile Park Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Peninsula Mobile Park serves a community with a median household income of $108,526 and an estimated 4,585 residents across its service area.
Environmental Justice Note: 36% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. 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?
Peninsula Mobile Park'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.
About 1% of homes in Mason County, Washington rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
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
Peninsula Mobile Park (EPA ID: WA5366914) is a community water system in Washington that serves approximately 92 people from groundwater sources.
This system serves ZIP code 98524 in Allyn.
Violation History
Lead & Copper
No Lead and Copper Rule sampling data available for this water system.
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
- 98524 — Allyn
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Peninsula Mobile Park (WA5366914) on EPA.gov.
Frequently Asked Questions
Is Peninsula Mobile Park water safe to drink?
Based on EPA records, Peninsula Mobile Park has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Peninsula Mobile Park serve?
Peninsula Mobile Park serves approximately 92 people across 1 ZIP code in Washington.
Where does Peninsula Mobile Park get its water?
The primary water source is groundwater.