Public water system · TX1011410
ActiveCimarron MUD
At a glance
Cimarron MUD (PWSID TX1011410) is an active community water system in Harris County, Texas. It reports serving 19,338 people through 6,461 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 September 1991.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
19,338
Service connections
6,461
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Cimarron MUD compare with other water systems in Harris County?
By EPA's size categories, Cimarron MUD is a large system (10,001 to 100,000 people). Harris County has 1,246 active public water systems. Its population served is about 4 times the county average of 4,849 people per system, and accounts for 0.3% of the 6,041,784 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 Cimarron MUD is about 189% 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 Cimarron MUD?
EPA lists Cimarron MUD 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. 508 of the 1,246 active systems in Harris County (41%) are also owned by a local government.
Does Cimarron MUD have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in September 1991. By type: 1 monitoring and reporting. The contaminant or rule involved is Total coliform bacteria (TCR). EPA lists 1 as archived. 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 |
|---|---|---|---|---|
| 1991-09-01 | Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26 | Total coliform bacteria (TCR)code 3100 | No | Archived |
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.
Cimarron MUD: frequently asked questions
Who runs Cimarron MUD?
Cimarron MUD (PWSID TX1011410) is a community water system owned by a local government. It is regulated by the TX state drinking water program.
How many people does Cimarron MUD serve?
Cimarron MUD reports serving 19,338 people through 6,461 service connections in Harris County, Texas.
Where does Cimarron MUD 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 Cimarron MUD 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 September 1991. 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 Cimarron MUD'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 September 1991. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.
Where can I find Cimarron MUD's water quality report?
As a community water system, Cimarron MUD 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 Harris County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Houston | Harris | 2,970,543 | Community | Surface water |
| City of Pasadena | Harris | 152,000 | Community | Purchased surface water |
| Clear Lake City Water Authority | Harris | 89,702 | Community | Purchased surface water |
| City of Baytown | Harris | 86,004 | Community | Purchased surface water |
| City of Houston Ud 5 - Kingwood | Harris | 80,073 | Community | Groundwater |
| Harris County MUD 165 | Harris | 40,503 | 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, “Cimarron MUD, PWSID TX1011410, Texas”, https://aquacensus.com/water-systems/texas/cimarron-mud-tx1011410 (data as of October 1, 2026).