B66/100
MARYSVILLE UTILITIES — Water Quality Report 2026
Serving 88,589 people · Washington
Water Source
Purchased Surface Water
County
—
System ID
WA5351900
Violations
15
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2025 – August 25, 2025Enforcement: Resolving — corrective action underway
TIER 3Resolved
Failed to complete routine monitoring
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2022 – July 31, 2022Rule: Surface Water Treatment RuleEnforcement: 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 MARYSVILLE UTILITIES
Is MARYSVILLE UTILITIES water safe to drink?
MARYSVILLE UTILITIES water receives a grade of B (66/100), which is considered good. Out of 69 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has MARYSVILLE UTILITIES detected?
69 contaminants were tested in MARYSVILLE UTILITIES's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does MARYSVILLE UTILITIES have any EPA violations?
Yes, MARYSVILLE UTILITIES has 15 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR, TT. 4 are health-based violations.
How many people does MARYSVILLE UTILITIES serve?
MARYSVILLE UTILITIES serves approximately 88,589 people, Washington.
What type of water does MARYSVILLE UTILITIES provide?
MARYSVILLE UTILITIES sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is WA5351900.
How does MARYSVILLE UTILITIES compare to other utilities in Washington?
MARYSVILLE UTILITIES scores 66/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Washington state page for a full comparison of water systems.