Amboy Clark Public Utilities
EPA ID: WA5304625 · 991 people served · 14 ZIP codes
Amboy Clark Public Utilities carries zero EPA violations in five years — a spotless record for a utility serving 991 residents.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Amboy Clark Public Utilities Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Amboy Clark Public Utilities serves a community with a median household income of $84,590 and an estimated 356,538 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.
💧 Where Does Your Water Come From?
Amboy Clark Public Utilities'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 Clark County, Washington 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. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 72 detections recorded. 24 exceed federal EPA limits (4 ppt for PFOA/PFOS). 12 exceed state limits.
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
Amboy Clark Public Utilities (EPA ID: WA5304625) is a community water system in Washington that serves approximately 991 people from groundwater sources.
This system provides water to 14 ZIP codes across 1 community.
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
- 98660 — Vancouver
- 98661 — Vancouver
- 98662 — Vancouver
- 98663 — Vancouver
- 98664 — Vancouver
- 98665 — Vancouver
- 98666 — Vancouver
- 98668 — Vancouver
- 98682 — Vancouver
- 98683 — Vancouver
- 98684 — Vancouver
- 98685 — Vancouver
- 98686 — Vancouver
- 98687 — Vancouver
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Amboy Clark Public Utilities (WA5304625) on EPA.gov.
Frequently Asked Questions
Is Amboy Clark Public Utilities water safe to drink?
Based on EPA records, Amboy Clark Public Utilities has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Amboy Clark Public Utilities serve?
Amboy Clark Public Utilities serves approximately 991 people across 14 ZIP codes in Washington.
Where does Amboy Clark Public Utilities get its water?
The primary water source is groundwater.
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.