Public water system · TX0790230
ActiveFirst Colony MUD 9
At a glance
First Colony MUD 9 (PWSID TX0790230) is an active community water system in Fort Bend County, Texas. It reports serving 7,818 people through 2,606 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is not health-based, and the most recent began in May 2007.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
7,818
Service connections
2,606
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does First Colony MUD 9 compare with other water systems in Fort Bend County?
By EPA's size categories, First Colony MUD 9 is a medium system (3,301 to 10,000 people). Fort Bend County has 287 active public water systems. Its population served is about 148% above the county average of 3,155 people per system, and accounts for 0.9% of the 905,329 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 First Colony MUD 9 is about 17% above 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 First Colony MUD 9?
EPA lists First Colony MUD 9 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. 157 of the 287 active systems in Fort Bend County (55%) are also owned by a local government.
Does First Colony MUD 9 have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in May 2007. By type: 1 monitoring and reporting. The contaminant or rule involved is Total coliform bacteria (TCR). EPA lists 1 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 |
|---|---|---|---|---|
| 2007-05-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
The one violation in EPA's records.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.
First Colony MUD 9: frequently asked questions
Who runs First Colony MUD 9?
First Colony MUD 9 (PWSID TX0790230) is a community water system owned by a local government. It is regulated by the TX state drinking water program.
How many people does First Colony MUD 9 serve?
First Colony MUD 9 reports serving 7,818 people through 2,606 service connections in Fort Bend County, Texas.
Where does First Colony MUD 9 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 First Colony MUD 9 have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in May 2007. 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 First Colony MUD 9'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 one violation for this system; it is not health-based, and the most recent began in May 2007. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.
Where can I find First Colony MUD 9's water quality report?
As a community water system, First Colony MUD 9 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 Fort Bend County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Sugar Land | Fort Bend | 90,909 | Community | Surface water |
| Fort Bend County Wcid 2 | Fort Bend | 49,173 | Community | Surface water |
| City of Rosenberg | Fort Bend | 43,158 | Community | Purchased surface water |
| City of Fulshear | Fort Bend | 34,000 | Community | Groundwater |
| City of Richmond | Fort Bend | 25,326 | Community | Surface water |
| Fort Bend County MUD 30 | Fort Bend | 16,794 | 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, “First Colony MUD 9, PWSID TX0790230, Texas”, https://aquacensus.com/water-systems/texas/first-colony-mud-9-tx0790230 (data as of October 1, 2026).