A94/100
CITY OF ALLEN — Water Quality Report 2026
Serving 104,870 people · Texas
Water Source
Purchased Surface Water
County
—
System ID
TX0430025
Violations
3
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 1300.00 µg/L | — | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2013.
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 ALLEN
Is CITY OF ALLEN water safe to drink?
CITY OF ALLEN water receives a grade of A (94/100), which is considered excellent. 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 CITY OF ALLEN detected?
69 contaminants were tested in CITY OF ALLEN's water. Notable contaminants include chlorate. No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does CITY OF ALLEN have any EPA violations?
Yes, CITY OF ALLEN has 3 EPA violation(s) on record, with the most recent in 2013. Violation types include MR, Other.
How many people does CITY OF ALLEN serve?
CITY OF ALLEN serves approximately 104,870 people, Texas.
What type of water does CITY OF ALLEN provide?
CITY OF ALLEN 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 TX0430025.
How does CITY OF ALLEN compare to other utilities in Texas?
CITY OF ALLEN scores 94/100 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.