C58/100
SHELTON CITY OF — Water Quality Report 2026
Serving 17,575 people · Washington
Water Source
Groundwater
County
—
System ID
WA5378170
Violations
28
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 300.00 µg/L | — | Above Goal |
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2017.
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 SHELTON CITY OF
Is SHELTON CITY OF water safe to drink?
SHELTON CITY OF water receives a grade of C (58/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 28 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has SHELTON CITY OF detected?
73 contaminants were tested in SHELTON CITY OF's water. Notable contaminants include Lead (90th percentile), chlorate. No contaminants exceed EPA legal limits. 2 exceed EPA health goals (MCLGs).
Does SHELTON CITY OF have any EPA violations?
Yes, SHELTON CITY OF has 28 EPA violation(s) on record, with the most recent in 2017. Violation types include Other, MR, MCL. 2 are health-based violations.
How many people does SHELTON CITY OF serve?
SHELTON CITY OF serves approximately 17,575 people, Washington.
What type of water does SHELTON CITY OF provide?
SHELTON CITY OF sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WA5378170.
How does SHELTON CITY OF compare to other utilities in Washington?
SHELTON CITY OF scores 58/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Washington state page for a full comparison of water systems.