Public water system · TX1010471
ActiveEl Dorado Utility District
At a glance
El Dorado Utility District (PWSID TX1010471) is an active community water system in Harris County, Texas. It reports serving 3,591 people through 1,198 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,591
Service connections
1,198
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does El Dorado Utility District compare with other water systems in Harris County?
By EPA's size categories, El Dorado Utility District is a medium system (3,301 to 10,000 people). Harris County has 1,246 active public water systems. Its population served is about 26% below the county average of 4,849 people per system, and accounts for less than 0.1% 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 El Dorado Utility District is about half of 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 El Dorado Utility District?
EPA lists El Dorado Utility District 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 El Dorado Utility District have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for El Dorado Utility District. For the latest compliance status, check EPA ECHO for current compliance history.
El Dorado Utility District: frequently asked questions
Who runs El Dorado Utility District?
El Dorado Utility District (PWSID TX1010471) is a community water system owned by a local government. It is regulated by the TX state drinking water program.
How many people does El Dorado Utility District serve?
El Dorado Utility District reports serving 3,591 people through 1,198 service connections in Harris County, Texas.
Where does El Dorado Utility District 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 El Dorado Utility District have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is El Dorado Utility District'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 Safe Drinking Water Act records list no violations for this system. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.
Where can I find El Dorado Utility District's water quality report?
As a community water system, El Dorado Utility District 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, “El Dorado Utility District, PWSID TX1010471, Texas”, https://aquacensus.com/water-systems/texas/el-dorado-utility-district-tx1010471 (data as of October 1, 2026).