A94/100
HARLINGEN WATER WORKS SYSTEM — Water Quality Report 2026
Serving 85,900 people · Texas
Water Source
Surface Water
County
—
System ID
TX0310002
Violations
3
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
strontium | 1530.00 µg/L | — | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2020.
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 HARLINGEN WATER WORKS SYSTEM
Is HARLINGEN WATER WORKS SYSTEM water safe to drink?
HARLINGEN WATER WORKS SYSTEM 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 HARLINGEN WATER WORKS SYSTEM detected?
69 contaminants were tested in HARLINGEN WATER WORKS SYSTEM's water. Notable contaminants include strontium. No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does HARLINGEN WATER WORKS SYSTEM have any EPA violations?
Yes, HARLINGEN WATER WORKS SYSTEM has 3 EPA violation(s) on record, with the most recent in 2020. Violation types include MON, MR, Other.
How many people does HARLINGEN WATER WORKS SYSTEM serve?
HARLINGEN WATER WORKS SYSTEM serves approximately 85,900 people, Texas.
What type of water does HARLINGEN WATER WORKS SYSTEM provide?
HARLINGEN WATER WORKS SYSTEM 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 TX0310002.
How does HARLINGEN WATER WORKS SYSTEM compare to other utilities in Texas?
HARLINGEN WATER WORKS SYSTEM 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.