Lake Cushman System 3
EPA ID: WA5303528 · 917 people served · 1 ZIP code
EPA monitoring data for Lake Cushman System 3 shows an unblemished five-year compliance history — no violations of any kind have been recorded for this utility, which supplies water to approximately 917 people, covering every reporting cycle without a single MCL exceedance or monitoring lapse.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Lake Cushman System 3 Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Lake Cushman System 3 serves a community with a median household income of $66,541 and an estimated 2,336 residents across its service area. Approximately 46% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
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?
Lake Cushman System 3'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
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 2 detections recorded.
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
Lake Cushman System 3 (EPA ID: WA5303528) is a community water system in Washington that serves approximately 917 people from groundwater sources.
This system serves ZIP code 98548 in Hoodsport.
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
- 98548 — Hoodsport
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Lake Cushman System 3 (WA5303528) on EPA.gov.
Frequently Asked Questions
Is Lake Cushman System 3 water safe to drink?
Based on EPA records, Lake Cushman System 3 has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Lake Cushman System 3 serve?
Lake Cushman System 3 serves approximately 917 people across 1 ZIP code in Washington.
Where does Lake Cushman System 3 get its water?
The primary water source is groundwater.