D39/100
CITY OF ALAMO HEIGHTS — Water Quality Report 2026
Serving 7,357 people · Texas
Water Source
Groundwater
County
—
System ID
TX0150039
Violations
38
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.003 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 1, 2025 – August 4, 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 15, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Treatment technique violation
When: October 17, 2024 – April 15, 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 CITY OF ALAMO HEIGHTS
Is CITY OF ALAMO HEIGHTS water safe to drink?
CITY OF ALAMO HEIGHTS water receives a grade of D (39/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 38 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has CITY OF ALAMO HEIGHTS detected?
66 contaminants were tested in CITY OF ALAMO HEIGHTS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does CITY OF ALAMO HEIGHTS have any EPA violations?
Yes, CITY OF ALAMO HEIGHTS has 38 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, RPT, TT. 5 are health-based violations.
How many people does CITY OF ALAMO HEIGHTS serve?
CITY OF ALAMO HEIGHTS serves approximately 7,357 people, Texas.
What type of water does CITY OF ALAMO HEIGHTS provide?
CITY OF ALAMO HEIGHTS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is TX0150039.
How does CITY OF ALAMO HEIGHTS compare to other utilities in Texas?
CITY OF ALAMO HEIGHTS scores 39/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Texas state page for a full comparison of water systems.