A89/100
CITY OF ROWLETT — Water Quality Report 2026
Serving 66,212 people · Texas
Water Source
Purchased Surface Water
County
—
System ID
TX0570056
Violations
5
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 631.00 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 CITY OF ROWLETT
Is CITY OF ROWLETT water safe to drink?
CITY OF ROWLETT water receives a grade of A (89/100), which is considered excellent. Out of 69 contaminants tested, none exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has CITY OF ROWLETT detected?
69 contaminants were tested in CITY OF ROWLETT's water. Notable contaminants include Lead (90th percentile), chlorate. No contaminants exceed EPA legal limits. 2 exceed EPA health goals (MCLGs).
Does CITY OF ROWLETT have any EPA violations?
Yes, CITY OF ROWLETT has 5 EPA violation(s) on record, with the most recent in 2017. Violation types include MON, MR, Other.
How many people does CITY OF ROWLETT serve?
CITY OF ROWLETT serves approximately 66,212 people, Texas.
What type of water does CITY OF ROWLETT provide?
CITY OF ROWLETT 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 TX0570056.
How does CITY OF ROWLETT compare to other utilities in Texas?
CITY OF ROWLETT scores 89/100 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.