Public water system · TX0200610
ActiveBrazoria County MUD 21
At a glance
Brazoria County MUD 21 (PWSID TX0200610) is an active community water system in Brazoria County, Texas. It reports serving 4,833 people through 1,612 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 2 violations for this system; none is health-based, and the most recent began in May 2003.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
4,833
Service connections
1,612
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Brazoria County MUD 21 compare with other water systems in Brazoria County?
By EPA's size categories, Brazoria County MUD 21 is a medium system (3,301 to 10,000 people). Brazoria County has 309 active public water systems. Its population served is about 3.8 times the county average of 1,277 people per system, and accounts for 1.2% of the 394,490 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 Brazoria County MUD 21 is about 28% 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 Brazoria County MUD 21?
EPA lists Brazoria County MUD 21 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. 54 of the 309 active systems in Brazoria County (17%) are also owned by a local government.
Does Brazoria County MUD 21 have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in May 2003. The violations listed here began between January 2003 and May 2003. By type: 1 public notice, recordkeeping or other and 1 monitoring and reporting. The contaminants or rules involved are Public Notice and Total coliform bacteria (TCR). EPA lists 2 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 |
|---|---|---|---|---|
| 2003-05-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2003-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 2 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.
Brazoria County MUD 21: frequently asked questions
Who runs Brazoria County MUD 21?
Brazoria County MUD 21 (PWSID TX0200610) is a community water system owned by a local government. It is regulated by the TX state drinking water program.
How many people does Brazoria County MUD 21 serve?
Brazoria County MUD 21 reports serving 4,833 people through 1,612 service connections in Brazoria County, Texas.
Where does Brazoria County MUD 21 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 Brazoria County MUD 21 have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in May 2003. 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 Brazoria County MUD 21'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 2 violations for this system; none is health-based, and the most recent began in May 2003. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.
Where can I find Brazoria County MUD 21's water quality report?
As a community water system, Brazoria County MUD 21 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 Brazoria County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Pearland | Brazoria | 125,828 | Community | Surface water |
| City of Lake Jackson | Brazoria | 27,314 | Community | Purchased surface water |
| City of Alvin | Brazoria | 26,244 | Community | Groundwater |
| City of Angleton | Brazoria | 19,429 | Community | Purchased surface water |
| City of Clute | Brazoria | 10,604 | Community | Purchased surface water |
| City of Freeport | Brazoria | 10,594 | Community | Purchased surface water |
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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, “Brazoria County MUD 21, PWSID TX0200610, Texas”, https://aquacensus.com/water-systems/texas/brazoria-county-mud-21-tx0200610 (data as of October 1, 2026).