Canyon Lake Water Quality
Texas
According to EPA SDWIS, Canyon Lake, Texas is served by 17 community water systems covering about 94,476 people. The same extract lists 37 health-based violation records, most recently coded 2950 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Canyon Lake, Texas is delivered through 17 EPA-regulated community water systems serving an estimated 94,476 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 37 violation records across the 17 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 6 distinct EPA contaminant codes: TTHM, Interim Enhanced Surface Water Treatment Rule, LEAD AND COPPER RULE REVISIONS, Revised Total Coliform Rule, Lead and Copper Rule and 1 others.
A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the Texas drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| CLWSC CANYON LAKE SHORES | 44,196 | 7 | Health |
| SJWTX TRIPLE PEAK PLANT | 32,973 | 6 | Health |
| KENDALL WEST UTILITY | 5,136 | 0 | Clean |
| SJWTX GLENWOOD SUBDIVISION | 2,985 | 3 | Health |
| DEER CREEK WATER | 2,757 | 0 | Clean |
| ROCKIN J RANCH SUBDIVISION | 1,839 | 6 | Health |
| ROCKWALL RANCH SUBDIVISION | 1,773 | 0 | Clean |
| BRIDLEGATE SUBDIVISION | 882 | 0 | Clean |
| RUST RANCH WATER SUPPLY | 564 | 0 | Clean |
| TEXAS COUNTRY WATER | 321 | 2 | Health |
| SUMMIT RIDGE | 252 | 2 | Health |
| KINGS POINT WSC | 174 | 1 | Health |
| CANYON LAKE ESTATES WATER SUPPLY | 171 | 10 | Health |
| WESTHAVEN WSC | 171 | 0 | Clean |
| LATIGO RANCH SUBDIVISION | 126 | 0 | Clean |
| SJWTX NORTH POINT SUBDIVISION | 93 | 0 | Clean |
| ELM RIDGE WATER | 63 | 0 | Clean |
Does this city have health-based water violations?
These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.
| Water system | Contaminant | Begin Date |
|---|---|---|
| SJWTX GLENWOOD SUBDIVISION | TTHM | 2025-10-01 |
| CLWSC CANYON LAKE SHORES | TTHM | 2025-10-01 |
| SJWTX GLENWOOD SUBDIVISION | TTHM | 2025-07-01 |
| SJWTX GLENWOOD SUBDIVISION | TTHM | 2025-07-01 |
| CLWSC CANYON LAKE SHORES | TTHM | 2025-07-01 |
| CLWSC CANYON LAKE SHORES | TTHM | 2025-07-01 |
| CLWSC CANYON LAKE SHORES | Interim Enhanced Surface Water Treatment Rule | 2025-07-01 |
| CLWSC CANYON LAKE SHORES | Interim Enhanced Surface Water Treatment Rule | 2025-07-01 |
| CLWSC CANYON LAKE SHORES | Interim Enhanced Surface Water Treatment Rule | 2025-07-01 |
| CLWSC CANYON LAKE SHORES | Interim Enhanced Surface Water Treatment Rule | 2025-07-01 |
| SUMMIT RIDGE | TTHM | 2025-04-01 |
| SUMMIT RIDGE | TTHM | 2025-04-01 |
| KINGS POINT WSC | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| CANYON LAKE ESTATES WATER SUPPLY | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| CANYON LAKE ESTATES WATER SUPPLY | Revised Total Coliform Rule | 2023-04-27 |
| ROCKIN J RANCH SUBDIVISION | Lead and Copper Rule | 2021-10-01 |
| ROCKIN J RANCH SUBDIVISION | Lead and Copper Rule | 2021-10-01 |
| CANYON LAKE ESTATES WATER SUPPLY | Lead and Copper Rule | 2021-07-01 |
| CANYON LAKE ESTATES WATER SUPPLY | Lead and Copper Rule | 2021-07-01 |
| CANYON LAKE ESTATES WATER SUPPLY | Lead and Copper Rule | 2021-06-30 |
| CANYON LAKE ESTATES WATER SUPPLY | Lead and Copper Rule | 2021-06-30 |
| ROCKIN J RANCH SUBDIVISION | Lead and Copper Rule | 2021-04-01 |
| ROCKIN J RANCH SUBDIVISION | Lead and Copper Rule | 2021-04-01 |
| ROCKIN J RANCH SUBDIVISION | Lead and Copper Rule | 2021-03-31 |
| ROCKIN J RANCH SUBDIVISION | Lead and Copper Rule | 2021-03-31 |
| CANYON LAKE ESTATES WATER SUPPLY | Groundwater Rule | 2021-03-03 |
| CANYON LAKE ESTATES WATER SUPPLY | Groundwater Rule | 2021-03-03 |
| CANYON LAKE ESTATES WATER SUPPLY | Groundwater Rule | 2021-03-03 |
| CANYON LAKE ESTATES WATER SUPPLY | Groundwater Rule | 2021-03-03 |
| TEXAS COUNTRY WATER | Revised Total Coliform Rule | 2019-02-24 |
| TEXAS COUNTRY WATER | Revised Total Coliform Rule | 2019-02-24 |
| SJWTX TRIPLE PEAK PLANT | TTHM | 2016-04-01 |
| SJWTX TRIPLE PEAK PLANT | TTHM | 2016-04-01 |
| SJWTX TRIPLE PEAK PLANT | TTHM | 2016-04-01 |
| SJWTX TRIPLE PEAK PLANT | TTHM | 2016-01-01 |
| SJWTX TRIPLE PEAK PLANT | TTHM | 2016-01-01 |
| SJWTX TRIPLE PEAK PLANT | TTHM | 2016-01-01 |
What are Canyon Lake's health-based records for?
Canyon Lake's health-based violation records carry 6 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Tthm | 14 | 4 |
| Lead and Copper Rule | 10 | 2 |
| Interim Enhanced Surface Water Treatment Rule | 4 | 1 |
| Groundwater Rule | 4 | 1 |
| Revised Total Coliform Rule | 3 | 2 |
| Lead and Copper Rule Revisions | 2 | 2 |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Canyon Lake, Texas? ▼
How many water violations does Canyon Lake have in this EPA extract? ▼
What contaminants were found in Canyon Lake water? ▼
How many water systems serve Canyon Lake? ▼
Where does Canyon Lake get its drinking water? ▼
How does Canyon Lake compare in Texas?
Of the 1,232 Texas places with at least one community water system on file, Canyon Lake ranks #19 by number of systems (17).
Either side of it: San Antonio (19), Keene (18), Spring (17), Collinsville (16)
About This Data
Figures here are the current EPA SDWIS extract joined to the 17 community water systems whose service area lists Canyon Lake, ranked against the 1,232 Texas places with at least one system on file. Data current as of 2026-08-25.
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.