A87/100
HARRIS COUNTY MUD 46 — Water Quality Report 2026
Serving 5,418 people · Texas
Water Source
Groundwater
County
—
System ID
TX1010903
Violations
6
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
3
Violations (last 5yr)
0
Unresolved
1
Health-Related
TIER 3Resolved
Disinfection byproduct treatment technique failure
When: May 15, 2025 – July 23, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Reporting violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 17, 2024 – April 22, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Treatment technique violation
When: October 17, 2024 – April 22, 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 HARRIS COUNTY MUD 46
Is HARRIS COUNTY MUD 46 water safe to drink?
HARRIS COUNTY MUD 46 water receives a grade of A (87/100), 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 HARRIS COUNTY MUD 46 detected?
31 contaminants were tested in HARRIS COUNTY MUD 46's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does HARRIS COUNTY MUD 46 have any EPA violations?
Yes, HARRIS COUNTY MUD 46 has 6 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, RPT, TT. 1 are health-based violations.
How many people does HARRIS COUNTY MUD 46 serve?
HARRIS COUNTY MUD 46 serves approximately 5,418 people, Texas.
What type of water does HARRIS COUNTY MUD 46 provide?
HARRIS COUNTY MUD 46 sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is TX1010903.
How does HARRIS COUNTY MUD 46 compare to other utilities in Texas?
HARRIS COUNTY MUD 46 scores 87/100 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.