Mayfield Rv Park
EPA ID: WA5311154 · 165 people served · 2 ZIP codes
Over five tracked years, Mayfield Rv Park has stayed completely violation-free for its 165 residents.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Mayfield Rv Park Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Mayfield Rv Park serves a community with a median household income of $242,007 and an estimated 56,081 residents across its service area.
💧 Where Does Your Water Come From?
Mayfield Rv 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 2% of homes in King County, Washington rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Superfund Proximity Note: This service area ranks in the 70th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 12 detections recorded. 4 exceed federal EPA limits (4 ppt for PFOA/PFOS).
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
Mayfield Rv Park (EPA ID: WA5311154) is a community water system in Washington that serves approximately 165 people from groundwater sources.
This system provides water to 2 ZIP codes across 1 community.
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
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Mayfield Rv Park (WA5311154) on EPA.gov.
Frequently Asked Questions
Is Mayfield Rv Park water safe to drink?
Based on EPA records, Mayfield Rv Park has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Mayfield Rv Park serve?
Mayfield Rv Park serves approximately 165 people across 2 ZIP codes in Washington.
Where does Mayfield Rv Park get its water?
The primary water source is groundwater.