Public water system · TX1010116
ActiveColonial Hills
At a glance
Colonial Hills (PWSID TX1010116) is an active community water system in Harris County, Texas. It reports serving 942 people through 314 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
942
Service connections
314
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Colonial Hills compare with other water systems in Harris County?
By EPA's size categories, Colonial Hills is a small system (501 to 3,300 people). Harris County has 1,246 active public water systems. Its population served is well 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 Colonial Hills is well 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 Colonial Hills?
EPA lists Colonial Hills as privately owned. 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. 732 of the 1,246 active systems in Harris County (59%) are also privately owned.
Does Colonial Hills 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 Colonial Hills. For the latest compliance status, check EPA ECHO for current compliance history.
Colonial Hills: frequently asked questions
Who runs Colonial Hills?
Colonial Hills (PWSID TX1010116) is a community water system privately owned. It is regulated by the TX state drinking water program.
How many people does Colonial Hills serve?
Colonial Hills reports serving 942 people through 314 service connections in Harris County, Texas.
Where does Colonial Hills 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 Colonial Hills have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Colonial Hills' 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 Colonial Hills' water quality report?
As a community water system, Colonial Hills 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, “Colonial Hills, PWSID TX1010116, Texas”, https://aquacensus.com/water-systems/texas/colonial-hills-tx1010116 (data as of October 1, 2026).