Lake Limerick Water
EPA ID: WA5344150 · 2,148 people served · 4 ZIP codes
Zero violations in five consecutive years of EPA monitoring — Lake Limerick Water 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 2,148 residents.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Lake Limerick Water Source: EPA SDWIS service area boundaries.
Service area boundary — Grade A
Service Area Demographics
The Lake Limerick Water serves a community with a median household income of $91,268 and an estimated 56,388 residents across its service area. Approximately 48% 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 Limerick Water'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
Lake Limerick Water (EPA ID: WA5344150) is a community water system in Washington that serves approximately 2,148 people from groundwater sources.
This system provides water to 4 ZIP codes across 4 communities.
Average Home Safety Score: A (95/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 98546 | 0.0025 mg/L | No | N/A |
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.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Lake Limerick Water (WA5344150) on EPA.gov.
Frequently Asked Questions
Is Lake Limerick Water water safe to drink?
Based on EPA records, Lake Limerick Water has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Lake Limerick Water serve?
Lake Limerick Water serves approximately 2,148 people across 4 ZIP codes in Washington.
Where does Lake Limerick Water get its water?
The primary water source is groundwater.