F0/100
WESTPORT WATER DEPARTMENT — Water Quality Report 2026
Serving 5,346 people · Washington
Water Source
Groundwater
County
—
System ID
WA5395300
Violations
174
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
5
Violations (last 5yr)
4
Unresolved
4
Health-Related
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (single sample)
When: April 1, 2025 – June 30, 2025Verify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (single sample)
When: January 1, 2025 – March 31, 2025Verify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (single sample)
When: October 1, 2024 – December 31, 2024Verify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (single sample)
When: July 1, 2024 – September 30, 2024Enforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved
Exceeded the MCL for disinfection byproducts
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2023 – March 31, 2023Enforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About WESTPORT WATER DEPARTMENT
Is WESTPORT WATER DEPARTMENT water safe to drink?
WESTPORT WATER DEPARTMENT water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 174 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has WESTPORT WATER DEPARTMENT detected?
51 contaminants were tested in WESTPORT WATER DEPARTMENT's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does WESTPORT WATER DEPARTMENT have any EPA violations?
Yes, WESTPORT WATER DEPARTMENT has 174 EPA violation(s) on record, with the most recent in 2025. Violation types include MCL, MR, MON. 4 are health-based violations.
How many people does WESTPORT WATER DEPARTMENT serve?
WESTPORT WATER DEPARTMENT serves approximately 5,346 people, Washington.
What type of water does WESTPORT WATER DEPARTMENT provide?
WESTPORT WATER DEPARTMENT sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WA5395300.
How does WESTPORT WATER DEPARTMENT compare to other utilities in Washington?
WESTPORT WATER DEPARTMENT scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Washington state page for a full comparison of water systems.