A95/100
DALLAS WATER UTILITY — Water Quality Report 2026
Serving 1,356,479 people · Texas
Water Source
Surface Water
County
—
System ID
TX0570004
Violations
2
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
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 2008.
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 DALLAS WATER UTILITY
Is DALLAS WATER UTILITY water safe to drink?
DALLAS WATER UTILITY water receives a grade of A (95/100), which is considered excellent. Out of 76 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has DALLAS WATER UTILITY detected?
76 contaminants were tested in DALLAS WATER UTILITY's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does DALLAS WATER UTILITY have any EPA violations?
Yes, DALLAS WATER UTILITY has 2 EPA violation(s) on record, with the most recent in 2008. Violation types include Other, MR.
How many people does DALLAS WATER UTILITY serve?
DALLAS WATER UTILITY serves approximately 1,356,479 people, Texas.
What type of water does DALLAS WATER UTILITY provide?
DALLAS WATER UTILITY 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 TX0570004.
How does DALLAS WATER UTILITY compare to other utilities in Texas?
DALLAS WATER UTILITY scores 95/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Texas state page for a full comparison of water systems.