A99/100
HARRIS COUNTY MUD 531 — Water Quality Report 2026
Serving 2,421 people · Texas
Water Source
Groundwater
County
—
System ID
TX1013531
Violations
1
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2016.
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 HARRIS COUNTY MUD 531
Is HARRIS COUNTY MUD 531 water safe to drink?
HARRIS COUNTY MUD 531 water receives a grade of A (99/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has HARRIS COUNTY MUD 531 detected?
1 contaminants were tested in HARRIS COUNTY MUD 531's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does HARRIS COUNTY MUD 531 have any EPA violations?
Yes, HARRIS COUNTY MUD 531 has 1 EPA violation(s) on record, with the most recent in 2016. Violation types include MR.
How many people does HARRIS COUNTY MUD 531 serve?
HARRIS COUNTY MUD 531 serves approximately 2,421 people, Texas.
What type of water does HARRIS COUNTY MUD 531 provide?
HARRIS COUNTY MUD 531 sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is TX1013531.
How does HARRIS COUNTY MUD 531 compare to other utilities in Texas?
HARRIS COUNTY MUD 531 scores 99/100 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.