Public water system · TX0160041
ActiveTrinity Oaks Preserve at Round Mountain
At a glance
Trinity Oaks Preserve at Round Mountain (PWSID TX0160041) is an active community water system in Blanco County, Texas. It reports serving 171 people through 18 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list one violation for this system; it is not health-based, and the most recent began in December 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
171
Service connections
18
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Trinity Oaks Preserve at Round Mountain compare with other water systems in Blanco County?
By EPA's size categories, Trinity Oaks Preserve at Round Mountain is a very small system (500 people or fewer). Blanco County has 26 active public water systems. Its population served is about 59% below the county average of 415 people per system, and accounts for 1.6% of the 10,782 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 Trinity Oaks Preserve at Round Mountain 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 Trinity Oaks Preserve at Round Mountain?
EPA lists Trinity Oaks Preserve at Round Mountain 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. 23 of the 26 active systems in Blanco County (88%) are also privately owned.
Does Trinity Oaks Preserve at Round Mountain have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in December 2023. By type: 1 monitoring. The contaminant or rule involved is Revised Total Coliform Rule. 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 |
|---|---|---|---|---|
| 2023-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | 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.
Trinity Oaks Preserve at Round Mountain: frequently asked questions
Who runs Trinity Oaks Preserve at Round Mountain?
Trinity Oaks Preserve at Round Mountain (PWSID TX0160041) is a community water system privately owned. It is regulated by the TX state drinking water program.
How many people does Trinity Oaks Preserve at Round Mountain serve?
Trinity Oaks Preserve at Round Mountain reports serving 171 people through 18 service connections in Blanco County, Texas.
Where does Trinity Oaks Preserve at Round Mountain 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 Trinity Oaks Preserve at Round Mountain 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 December 2023. 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 Trinity Oaks Preserve at Round Mountain'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 December 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.
Where can I find Trinity Oaks Preserve at Round Mountain's water quality report?
As a community water system, Trinity Oaks Preserve at Round Mountain 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 Blanco County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Blanco | Blanco | 3,192 | Community | Surface water |
| City of Johnson City | Blanco | 2,097 | Community | Groundwater |
| Rockin J Ranch Subdivision | Blanco | 1,839 | Community | Groundwater |
| Tpwd Pedernales Falls State Park | Blanco | 690 | Transient non-community | Surface water |
| Rust Ranch Water Supply | Blanco | 564 | Community | Groundwater |
| Bigs Convenience Store | Blanco | 354 | Transient non-community | Groundwater |
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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, “Trinity Oaks Preserve at Round Mountain, PWSID TX0160041, Texas”, https://aquacensus.com/water-systems/texas/trinity-oaks-preserve-at-round-mountain-tx0160041 (data as of October 1, 2026).