Skykomish Water Department
EPA ID: WA5380100 · 324 people served · 1 ZIP code
Federal water data for Skykomish Water Department logs 1 historical violation — all addressed and cleared, leaving the utility in current compliance for 324 people.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Skykomish Water Department Source: EPA SDWIS service area boundaries.
Service area boundary — Grade A
Service Area Demographics
The Skykomish Water Department serves a community with a median household income of $59,583 and an estimated 201 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?
Skykomish Water Department'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 King 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
Detected Contaminants
How Skykomish Water Department compares to EPA limits
What This Means For You
Surface Water Treatment Rule at 1 mg/L exceeds the EPA maximum of mg/L.
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
Skykomish Water Department (EPA ID: WA5380100) is a community water system in Washington that serves approximately 324 people from groundwater sources.
This system serves ZIP code 98288 in Skykomish.
Average Home Safety Score: A (85/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Surface Water Treatment Rule | Treatment Failure | 1 | No |
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 98288 | 0.0009 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
- 98288 — Skykomish
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Skykomish Water Department (WA5380100) on EPA.gov.
Frequently Asked Questions
Is Skykomish Water Department water safe to drink?
Skykomish Water Department has only monitoring/reporting violations, which are procedural in nature. The system meets federal health-based standards.
How many people does Skykomish Water Department serve?
Skykomish Water Department serves approximately 324 people across 1 ZIP code in Washington.
Where does Skykomish Water Department 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:
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.
Frequently Asked Questions
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Skykomish Water Department (EPA ID: WA5380100) — request the latest Consumer Confidence Report or ask about specific contaminants.