Public water system · TX0460019
ActiveClwsc Canyon Lake Shores
At a glance
Clwsc Canyon Lake Shores (PWSID TX0460019) is an active community water system in Comal County, Texas. It reports serving 44,196 people through 14,732 service connections. Its primary water source is surface water, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in March 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
44,196
Service connections
14,732
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Clwsc Canyon Lake Shores compare with other water systems in Comal County?
By EPA's size categories, Clwsc Canyon Lake Shores is a large system (10,001 to 100,000 people). Comal County has 94 active public water systems, and Clwsc Canyon Lake Shores is the 2nd-largest of them by population served. Its population served is about 18 times the county average of 2,473 people per system, and accounts for 19% of the 232,493 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 Clwsc Canyon Lake Shores is about 6.6 times 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 Clwsc Canyon Lake Shores?
EPA lists Clwsc Canyon Lake Shores 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. 80 of the 94 active systems in Comal County (85%) are also privately owned.
Does Clwsc Canyon Lake Shores have drinking water violations?
Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in March 2026. The violations listed here began between January 2021 and March 2026. By type: 3 contaminant level above the legal limit, 3 monitoring and reporting, 2 public notice, recordkeeping or other, 2 required treatment not met and 2 monitoring. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (4 of them). EPA lists 9 as resolved and 3 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-03-04 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2026-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2025-12-16 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2025-07-01 | Required treatment not metSingle Turbidity Exceed (Enhanced SWTR) · code 43 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2025-07-01 | Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2025-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2025-02-04 | Monitoring and reportingFailure Submit IDSE/Subpart V Plan Rpt · code 35 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2024-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-02-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Aldicarb sulfoxidecode 2043 | 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.
Clwsc Canyon Lake Shores: frequently asked questions
Who runs Clwsc Canyon Lake Shores?
Clwsc Canyon Lake Shores (PWSID TX0460019) is a community water system privately owned. It is regulated by the TX state drinking water program.
How many people does Clwsc Canyon Lake Shores serve?
Clwsc Canyon Lake Shores reports serving 44,196 people through 14,732 service connections in Comal County, Texas.
Where does Clwsc Canyon Lake Shores 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 Clwsc Canyon Lake Shores have any drinking water violations?
Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in March 2026. 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 Clwsc Canyon Lake Shores' 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, 5 are health-based, and the most recent began in March 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.
Where can I find Clwsc Canyon Lake Shores' water quality report?
As a community water system, Clwsc Canyon Lake Shores 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 Comal County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| New Braunfels Utilities | Comal | 116,477 | Community | Surface water |
| Sjwtx Triple Peak Plant | Comal | 32,973 | Community | Surface water |
| City of Garden Ridge | Comal | 5,100 | Community | Groundwater |
| Sjwtx Glenwood Subdivision | Comal | 2,985 | Community | Purchased surface water |
| Gbra Johnson Ranch Subdivision | Comal | 2,322 | Community | Purchased surface water |
| Canyon Lake Mobile Home Estates | Comal | 2,202 | Community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Clwsc Canyon Lake Shores, PWSID TX0460019, Texas”, https://aquacensus.com/water-systems/texas/clwsc-canyon-lake-shores-tx0460019 (data as of October 1, 2026).