D34/100
CITY OF PRESIDIO — Water Quality Report 2026
Serving 5,514 people · Texas
Water Source
Groundwater
County
—
System ID
TX1890002
Violations
34
Contaminant Test Results
EPA Violation History
5
Violations (last 5yr)
1
Unresolved
1
Health-Related
TIER 3Resolved
Disinfection byproduct treatment technique failure
When: May 15, 2025 – July 2, 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
TIER 3Unresolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: December 30, 2023Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved
Failed to issue ongoing public notification
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2023 – June 27, 2024Rule: 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 PRESIDIO
Is CITY OF PRESIDIO water safe to drink?
CITY OF PRESIDIO water receives a grade of D (34/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 34 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has CITY OF PRESIDIO detected?
51 contaminants were tested in CITY OF PRESIDIO's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does CITY OF PRESIDIO have any EPA violations?
Yes, CITY OF PRESIDIO has 34 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, RPT, TT. 8 are health-based violations.
How many people does CITY OF PRESIDIO serve?
CITY OF PRESIDIO serves approximately 5,514 people, Texas.
What type of water does CITY OF PRESIDIO provide?
CITY OF PRESIDIO sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is TX1890002.
How does CITY OF PRESIDIO compare to other utilities in Texas?
CITY OF PRESIDIO scores 34/100 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.