D36/100
TACOMA WATER DIVISION CITY OF — Water Quality Report 2026
Serving 448,771 people · Washington
Water Source
Surface Water
County
—
System ID
WA5386800
Violations
17
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.57 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2015.
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 TACOMA WATER DIVISION CITY OF
Is TACOMA WATER DIVISION CITY OF water safe to drink?
TACOMA WATER DIVISION CITY OF water receives a grade of D (36/100), which is considered poor. 1 contaminant(s) exceed EPA legal limits and 17 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has TACOMA WATER DIVISION CITY OF detected?
77 contaminants were tested in TACOMA WATER DIVISION CITY OF's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does TACOMA WATER DIVISION CITY OF have any EPA violations?
Yes, TACOMA WATER DIVISION CITY OF has 17 EPA violation(s) on record, with the most recent in 2015. Violation types include Other, TT, MR. 9 are health-based violations.
How many people does TACOMA WATER DIVISION CITY OF serve?
TACOMA WATER DIVISION CITY OF serves approximately 448,771 people, Washington.
What type of water does TACOMA WATER DIVISION CITY OF provide?
TACOMA WATER DIVISION CITY OF sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is WA5386800.
How does TACOMA WATER DIVISION CITY OF compare to other utilities in Washington?
TACOMA WATER DIVISION CITY OF scores 36/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Washington state page for a full comparison of water systems.