A85/100
NORTHWEST HARRIS COUNTY MUD 19 — Water Quality Report 2026
Serving 5,535 people · Texas
Water Source
Groundwater
County
—
System ID
TX1011927
Violations
8
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.004 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: June 1, 2023 – June 30, 2023Rule: Total Coliform 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 NORTHWEST HARRIS COUNTY MUD 19
Is NORTHWEST HARRIS COUNTY MUD 19 water safe to drink?
NORTHWEST HARRIS COUNTY MUD 19 water receives a grade of A (85/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has NORTHWEST HARRIS COUNTY MUD 19 detected?
1 contaminants were tested in NORTHWEST HARRIS COUNTY MUD 19's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does NORTHWEST HARRIS COUNTY MUD 19 have any EPA violations?
Yes, NORTHWEST HARRIS COUNTY MUD 19 has 8 EPA violation(s) on record, with the most recent in 2023. Violation types include MON, MR, Other. 1 are health-based violations.
How many people does NORTHWEST HARRIS COUNTY MUD 19 serve?
NORTHWEST HARRIS COUNTY MUD 19 serves approximately 5,535 people, Texas.
What type of water does NORTHWEST HARRIS COUNTY MUD 19 provide?
NORTHWEST HARRIS COUNTY MUD 19 sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is TX1011927.
How does NORTHWEST HARRIS COUNTY MUD 19 compare to other utilities in Texas?
NORTHWEST HARRIS COUNTY MUD 19 scores 85/100 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.