A82/100
CITY OF COLUMBUS — Water Quality Report 2026
Serving 3,739 people · Texas
Water Source
Groundwater
County
—
System ID
TX0450001
Violations
11
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
4
Violations (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 5, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Disinfection byproduct treatment technique failure
When: March 21, 2022 – June 27, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2021 – October 31, 2021Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed to conduct Level 1 Assessment
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 22, 2021 – August 1, 2022Rule: Consumer Confidence 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 COLUMBUS
Is CITY OF COLUMBUS water safe to drink?
CITY OF COLUMBUS 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 CITY OF COLUMBUS detected?
31 contaminants were tested in CITY OF COLUMBUS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does CITY OF COLUMBUS have any EPA violations?
Yes, CITY OF COLUMBUS has 11 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, Other, MON. 1 are health-based violations.
How many people does CITY OF COLUMBUS serve?
CITY OF COLUMBUS serves approximately 3,739 people, Texas.
What type of water does CITY OF COLUMBUS provide?
CITY OF COLUMBUS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is TX0450001.
How does CITY OF COLUMBUS compare to other utilities in Texas?
CITY OF COLUMBUS 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.