Public water system · TX0450001

Active

City of Columbus

At a glance

City of Columbus (PWSID TX0450001) is an active community water system in Colorado County, Texas. It reports serving 3,739 people through 1,806 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in December 2024.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

3,739

Service connections

1,806

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDTX0450001

System typeCommunity water system

Activity statusActive

Population served3,739

Service connections1,806

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyTX state drinking water program

City served—

StateTexas

ZIP—

CountyColorado County

How does City of Columbus compare with other water systems in Colorado County?

By EPA's size categories, City of Columbus is a medium system (3,301 to 10,000 people). Colorado County has 43 active public water systems, and City of Columbus is the 2nd-largest of them by population served. Its population served is about 9 times the county average of 416 people per system, and accounts for 21% of the 17,897 people reported by systems filed under the county. Across Texas, the 7,078 active systems average 4,789 people each. Nationally, the average active community water system reports serving 6,703 people, so City of Columbus is about 44% below that figure.

What does “community water system” mean?

A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Texas has 4,594 active community water systems, 65% of the state's 7,078 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 5,215 Texas systems (74%) list groundwater as their primary source.

Who owns and regulates City of Columbus?

EPA lists City of Columbus as owned by a local government. The TX state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 10 of the 43 active systems in Colorado County (23%) are also owned by a local government.

Does City of Columbus have drinking water violations?

EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in December 2024. The violations listed here began between July 1992 and December 2024. By type: 7 monitoring and reporting, 2 public notice, recordkeeping or other, 1 monitoring and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Lead and Copper Rule (4 of them). EPA lists 11 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.

Began	Violation	Contaminant or rule	Health-based	Status
2024-12-30	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2022-03-21	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2021-10-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2021-07-22	Monitoring and reportingMonitoring, Source Water (GWR) · code 34	E. colicode 3014	No	Resolved
2021-01-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2020-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2016-12-30	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2015-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2008-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2005-09-01	Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25	Total coliform bacteria (TCR)code 3100	No	Resolved
1992-07-01	Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51	Lead and Copper Rulecode 5000	No	Resolved

All 11 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.

City of Columbus: frequently asked questions

Who runs City of Columbus?

City of Columbus (PWSID TX0450001) is a community water system owned by a local government. It is regulated by the TX state drinking water program.

How many people does City of Columbus serve?

City of Columbus reports serving 3,739 people through 1,806 service connections in Colorado County, Texas.

Where does City of Columbus get its water?

EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.

Does City of Columbus have any drinking water violations?

EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in December 2024. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.

Is City of Columbus' water safe to drink?

AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in December 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.

Where can I find City of Columbus' water quality report?

As a community water system, City of Columbus must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.

Other water systems in Colorado County

Water system	County	Population served	Type	Source
City of Eagle Lake	Colorado	3,837	Community	Groundwater
City of Weimar	Colorado	2,226	Community	Groundwater
Glidden Fwsd 1	Colorado	855	Community	Groundwater
Txdot Colorado County Sra	Colorado	750	Transient non-community	Purchased groundwater
Lake Sheridan Estates	Colorado	750	Community	Groundwater
Colorado County Wcid 2	Colorado	654	Community	Groundwater

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About this data

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.

Cite as: AquaCensus, “City of Columbus, PWSID TX0450001, Texas”, https://aquacensus.com/water-systems/texas/city-of-columbus-tx0450001 (data as of October 1, 2026).