Usace Illia Residential Area
EPA ID: WA5348704 · 46 people served · 1 ZIP code
Water monitoring history at Usace Illia Residential Area shows a clean slate — EPA tracking over the past five years turned up no violations, and 46 residents continue to receive fully compliant service.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Usace Illia Residential Area Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Usace Illia Residential Area serves a community with a median household income of $61,741 and an estimated 2,467 residents across its service area. Approximately 78% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Usace Illia Residential Area'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 0% of homes in Garfield 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
Usace Illia Residential Area (EPA ID: WA5348704) is a community water system in Washington that serves approximately 46 people from groundwater sources.
This system serves ZIP code 99347 in Pomeroy.
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
- 99347 — Pomeroy
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Usace Illia Residential Area (WA5348704) on EPA.gov.
Frequently Asked Questions
Is Usace Illia Residential Area water safe to drink?
Based on EPA records, Usace Illia Residential Area has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Usace Illia Residential Area serve?
Usace Illia Residential Area serves approximately 46 people across 1 ZIP code in Washington.
Where does Usace Illia Residential Area get its water?
The primary water source is groundwater.