A82/100
SONTERRA MUD — Water Quality Report 2026
Serving 16,614 people · Texas
Water Source
Purchased Surface Water
County
—
System ID
TX2460157
Violations
7
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
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: December 30, 2024 – February 11, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
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 SONTERRA MUD
Is SONTERRA MUD water safe to drink?
SONTERRA MUD water receives a grade of A (82/100), which is considered excellent. Out of 31 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has SONTERRA MUD detected?
31 contaminants were tested in SONTERRA MUD's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does SONTERRA MUD have any EPA violations?
Yes, SONTERRA MUD has 7 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, MCL. 2 are health-based violations.
How many people does SONTERRA MUD serve?
SONTERRA MUD serves approximately 16,614 people, Texas.
What type of water does SONTERRA MUD provide?
SONTERRA MUD 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 TX2460157.
How does SONTERRA MUD compare to other utilities in Texas?
SONTERRA MUD scores 82/100 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.