Public water system · TX0490050
ActiveCallisburg Isd
At a glance
Callisburg Isd (PWSID TX0490050) is an active non-transient non-community water system in Cooke County, Texas. It reports serving 675 people through 4 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 6 violations for this system; none is health-based, and the most recent began in December 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
675
Service connections
4
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Callisburg Isd compare with other water systems in Cooke County?
By EPA's size categories, Callisburg Isd is a small system (501 to 3,300 people). Cooke County has 25 active public water systems. Its population served is about 62% below the county average of 1,791 people per system, and accounts for 1.5% of the 44,772 people reported by systems filed under the county. Across Texas, the 7,078 active systems average 4,789 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Callisburg Isd is about 57% above that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Texas has 862 active non-transient non-community water systems, 12% 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 Callisburg Isd?
EPA lists Callisburg Isd 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. 14 of the 25 active systems in Cooke County (56%) are also owned by a local government.
Does Callisburg Isd have drinking water violations?
EPA's records list 6 violations for this system; none is health-based, and the most recent began in December 2025. The violations listed here began between October 2008 and December 2025. By type: 6 monitoring and reporting. The contaminant or rule involved most often is Lead and Copper Rule (4 of them). EPA lists 5 as resolved and 1 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2019-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2016-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2013-09-29 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2009-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2008-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Archived |
All 6 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.
Callisburg Isd: frequently asked questions
Who runs Callisburg Isd?
Callisburg Isd (PWSID TX0490050) is a non-transient non-community water system owned by a local government. It is regulated by the TX state drinking water program.
How many people does Callisburg Isd serve?
Callisburg Isd reports serving 675 people through 4 service connections in Cooke County, Texas.
Where does Callisburg Isd 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 Callisburg Isd have any drinking water violations?
EPA's records list 6 violations for this system; none is health-based, and the most recent began in December 2025. 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 Callisburg Isd's 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 6 violations for this system; none is health-based, and the most recent began in December 2025. For current results, consult EPA ECHO, or the TX state drinking water program.
Where can I find Callisburg Isd's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Callisburg Isd is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Cooke County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Gainesville | Cooke | 18,107 | Community | Surface water |
| Woodbine Special Utility District | Cooke | 7,689 | Community | Groundwater |
| Mountain Springs WSC | Cooke | 3,756 | Community | Groundwater |
| Lake Kiowa Sud | Cooke | 2,848 | Community | Groundwater |
| City of Callisburg | Cooke | 2,277 | Community | Groundwater |
| City of Muenster | Cooke | 1,771 | Community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Callisburg Isd, PWSID TX0490050, Texas”, https://aquacensus.com/water-systems/texas/callisburg-isd-tx0490050 (data as of October 1, 2026).