Public water system · TX1500015
ActiveCity of Horseshoe Bay
At a glance
City of Horseshoe Bay (PWSID TX1500015) is an active community water system in Llano County, Texas. It reports serving 12,729 people through 3,456 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
12,729
Service connections
3,456
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does City of Horseshoe Bay compare with other water systems in Llano County?
By EPA's size categories, City of Horseshoe Bay is a large system (10,001 to 100,000 people). Llano County has 22 active public water systems, and City of Horseshoe Bay is the 2nd-largest of them by population served. Its population served is about 7.3 times the county average of 1,755 people per system, and accounts for 33% of the 38,598 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 City of Horseshoe Bay is about 90% 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 328 Texas systems (4.6%) list surface water as their primary source.
Who owns and regulates City of Horseshoe Bay?
EPA lists City of Horseshoe Bay 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. 9 of the 22 active systems in Llano County (41%) are also owned by a local government.
Does City of Horseshoe Bay have drinking water violations?
Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in October 2024. The violations listed here began between March 2019 and October 2024. By type: 6 public notice, recordkeeping or other, 3 contaminant level above the legal limit, 1 monitoring and reporting, 1 required treatment not met and 1 monitoring. The contaminant or rule involved most often is Public Notice (6 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2024-10-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2024-07-16 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2024-06-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Long Term 2 Enhanced Surface Water Treatment Rulecode 0800 | Yes | Resolved |
| 2021-11-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2021-10-29 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2021-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2021-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2020-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-09-23 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2019-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2019-03-10 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2019-03-10 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
The 12 most recent violations in EPA's records, newest first. 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.
City of Horseshoe Bay: frequently asked questions
Who runs City of Horseshoe Bay?
City of Horseshoe Bay (PWSID TX1500015) is a community water system owned by a local government. It is regulated by the TX state drinking water program.
How many people does City of Horseshoe Bay serve?
City of Horseshoe Bay reports serving 12,729 people through 3,456 service connections in Llano County, Texas.
Where does City of Horseshoe Bay get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does City of Horseshoe Bay have any drinking water violations?
Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in October 2024. 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 City of Horseshoe Bay'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. Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in October 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.
Where can I find City of Horseshoe Bay's water quality report?
As a community water system, City of Horseshoe Bay 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 Llano County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Kingsland WSC | Llano | 12,975 | Community | Surface water |
| City of Llano | Llano | 3,352 | Community | Surface water |
| Lake Buchanan | Llano | 2,484 | Community | Surface water |
| Tpwd Enchanted Rock Sna | Llano | 885 | Transient non-community | Groundwater |
| Camp Longhorn Main Camp | Llano | 800 | Transient non-community | Surface water |
| City of Sunrise Beach Village | Llano | 791 | 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, “City of Horseshoe Bay, PWSID TX1500015, Texas”, https://aquacensus.com/water-systems/texas/city-of-horseshoe-bay-tx1500015 (data as of October 1, 2026).