Public water system · TX1300034
ActiveWalnut Hills
At a glance
Walnut Hills (PWSID TX1300034) is an active community water system in Kendall County, Texas. It reports serving 579 people through 193 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 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
579
Service connections
193
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Walnut Hills compare with other water systems in Kendall County?
By EPA's size categories, Walnut Hills is a small system (501 to 3,300 people). Kendall County has 46 active public water systems. Its population served is about 41% below the county average of 974 people per system, and accounts for 1.3% of the 44,783 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 Walnut 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 Walnut Hills?
EPA lists Walnut 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. 37 of the 46 active systems in Kendall County (80%) are also privately owned.
Does Walnut Hills 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 2022. 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 |
|---|---|---|---|---|
| 2022-12-01 | 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.
Walnut Hills: frequently asked questions
Who runs Walnut Hills?
Walnut Hills (PWSID TX1300034) is a community water system privately owned. It is regulated by the TX state drinking water program.
How many people does Walnut Hills serve?
Walnut Hills reports serving 579 people through 193 service connections in Kendall County, Texas.
Where does Walnut 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 Walnut Hills 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 2022. 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 Walnut 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 records list one violation for this system; it is not health-based, and the most recent began in December 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.
Where can I find Walnut Hills' water quality report?
As a community water system, Walnut 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 Kendall County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Boerne | Kendall | 24,769 | Community | Surface water |
| Kendall West Utility | Kendall | 5,136 | Community | Purchased surface water |
| Kendall County Wcid 1 | Kendall | 3,579 | Community | Groundwater |
| Tpwd Guadalupe River State Park | Kendall | 2,165 | Transient non-community | Surface water |
| Gbra Cordillera Ranch | Kendall | 1,707 | Community | Purchased surface water |
| Geneva School of Boerne | Kendall | 750 | Non-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, “Walnut Hills, PWSID TX1300034, Texas”, https://aquacensus.com/water-systems/texas/walnut-hills-tx1300034 (data as of October 1, 2026).