Olney-walluski Water Assn
EPA ID: OR4100057 · 575 people served · 1 ZIP code
Compared to the national average for mid-size utilities, Olney-walluski Water Assn sits well above the baseline — five years of EPA monitoring show no violations, no MCL exceedances, and no enforcement actions for the full service territory of 575 people.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Olney-walluski Water Assn Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Olney-walluski Water Assn serves a community with a median household income of $75,080 and an estimated 17,738 residents across its service area. Approximately 76% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Olney-walluski Water Assn's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
About 2% of homes in Clatsop County, Oregon 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.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Oregon
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
Olney-walluski Water Assn (EPA ID: OR4100057) is a community water system in Oregon that serves approximately 575 people from surface water sources.
This system serves ZIP code 97103 in Astoria.
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
- 97103 — Astoria
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Olney-walluski Water Assn (OR4100057) on EPA.gov.
Frequently Asked Questions
Is Olney-walluski Water Assn water safe to drink?
Based on EPA records, Olney-walluski Water Assn has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Olney-walluski Water Assn serve?
Olney-walluski Water Assn serves approximately 575 people across 1 ZIP code in Oregon.
Where does Olney-walluski Water Assn get its water?
The primary water source is surface water.
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.