Johnston, James W
EPA ID: WA5319001 · 28 people served · 1 ZIP code
EPA monitoring data for Johnston, James W shows an unblemished five-year compliance history — no violations of any kind have been recorded for this utility, which supplies water to approximately 28 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 Johnston, James W Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Johnston, James W serves a community with a median household income of $93,553 and an estimated 3,353 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.
💧 Where Does Your Water Come From?
Johnston, James W'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 Skamania 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
Johnston, James W (EPA ID: WA5319001) is a community water system in Washington that serves approximately 28 people from groundwater sources.
This system serves ZIP code 98648 in Stevenson.
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
- 98648 — Stevenson
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Johnston, James W (WA5319001) on EPA.gov.
Frequently Asked Questions
Is Johnston, James W water safe to drink?
Based on EPA records, Johnston, James W has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Johnston, James W serve?
Johnston, James W serves approximately 28 people across 1 ZIP code in Washington.
Where does Johnston, James W get its water?
The primary water source is groundwater.