Community Water System · PWSID TX0460017

Canyon Lake Estates Water Supply

Serves 171 peopleGroundwaterOwner: Local GovernmentCanyon Lake, Texas
1 open treatment violation.

Open for: Revised Total Coliform Rule. EPA counts treatment-technique violations as health-based: a required protective step was not done. It is not a measurement of contamination.

On record since 2019: 100 violations. 5 treatment lapses · 88 missed or late tests · 7 notices or reports. Most recent began 2025-05-15.

None of them is a measurement of contaminated water.

For this year's test results, ask the utility for its annual Consumer Confidence Report. Every community system must publish one.

0Over the limit
5Treatment lapse1 open
88Missed or late test
7Notice or report2 open

More violations on record than 96% of active water systems in Texas. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2005201020152019 · Missed or late test: 12020 · Missed or late test: 342020 · Missed or late test: 342020 · Missed or late test: 342020 · Missed or late test: 342020 · Missed or late test: 342020 · Missed or late test: 342020 · Missed or late test: 342020 · Missed or late test: 342020 · Missed or late test: 3420202021 · Treatment lapse: 32021 · Missed or late test: 62021 · Missed or late test: 62021 · Notice or report: 22022 · Missed or late test: 442022 · Missed or late test: 442022 · Missed or late test: 442022 · Missed or late test: 442022 · Missed or late test: 442022 · Missed or late test: 442022 · Missed or late test: 442022 · Missed or late test: 442022 · Missed or late test: 442022 · Missed or late test: 442022 · Missed or late test: 442022 · Notice or report: 12023 · Treatment lapse: 12023 · Missed or late test: 22023 · Notice or report: 12024 · Treatment lapse: 12024 · Missed or late test: 12024 · Notice or report: 22025 · Notice or report: 12025
One square ≈ 4 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
5% treatment lapse · 588% missed or late test · 887% notice or report · 7

Across Texas, 60% of violations are missed or late tests and 10% are water over a limit.

What you can do

  • Total Coliform Bacteria: If your water system has coliform violations, consider boiling water or using bottled water until the system confirms the issue is resolved. Contact your water provider for their latest test results and any boil-water advisories.

Lead & copper at the tap

Utilities sample taps in homes most likely to have lead pipes, and report the 90th-percentile result: 9 in 10 homes sampled came in at or below this number. Above the red line (the action level) the utility must act. The action level is not a safe level; EPA's health goal for lead is zero. EPA's file does not date these results, so they are shown highest first.

Lead, 90th percentile 5 results on file · action level 15 ppb

16 ppb
5 ppb
3 ppb
2.9 ppb
2 ppb

Open now (3)

  1. 2025-05-15Public NoticePN Violation for NPDWR ViolationOpen
  2. 2024-05-01Public NoticePN Violation for NPDWR ViolationOpen
  3. 2023-04-27Revised Total Coliform RuleTTOpen

Every violation on record

  1. 2025-05-15Public NoticePN Violation for NPDWR ViolationOpen
  2. 2024-10-17Lead service line inventoryRPTBack in compliance
  3. 2024-10-17Lead service line inventoryTTBack in compliance
  4. 2024-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  5. 2024-05-01Public NoticePN Violation for NPDWR ViolationOpen
  6. 2023-07-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  7. 2023-04-27Revised Total Coliform RuleTTOpen
  8. 2023-04-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  9. 2023-04-01Revised Total Coliform RuleMONBack in compliance
  10. 2022-10-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  11. 2022-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  12. 2022-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  13. 2022-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  14. 2022-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  15. 2022-04-01Revised Total Coliform RuleMONBack in compliance
  16. 2022-04-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  17. 2022-01-01ChlordaneMonitoring, RegularBack in compliance
  18. 2022-01-01PentachlorophenolMonitoring, RegularBack in compliance
  19. 2022-01-01Benzo(a)pyreneMonitoring, RegularBack in compliance
  20. 2022-01-01HexachlorobenzeneMonitoring, RegularBack in compliance
  21. 2022-01-01Heptachlor epoxideMonitoring, RegularBack in compliance
  22. 2022-01-01HeptachlorMonitoring, RegularBack in compliance
  23. 2022-01-01LassoMonitoring, RegularBack in compliance
  24. 2022-01-01AtrazineMonitoring, RegularBack in compliance
  25. 2022-01-01HexachlorocyclopentadieneMonitoring, RegularBack in compliance
Show the other 75 entries
  1. 2022-01-01Di(2-ethylhexyl) phthalateMonitoring, RegularBack in compliance
  2. 2022-01-01SimazineMonitoring, RegularBack in compliance
  3. 2022-01-01Di(2-ethylhexyl) adipateMonitoring, RegularBack in compliance
  4. 2022-01-01ToxapheneMonitoring, RegularBack in compliance
  5. 2022-01-01MethoxychlorMonitoring, RegularBack in compliance
  6. 2022-01-01Bhc-GammaMonitoring, RegularBack in compliance
  7. 2022-01-01EndrinMonitoring, RegularBack in compliance
  8. 2022-01-01StyreneMonitoring, RegularBack in compliance
  9. 2022-01-01EthylbenzeneMonitoring, RegularBack in compliance
  10. 2022-01-01TolueneMonitoring, RegularBack in compliance
  11. 2022-01-01BenzeneMonitoring, RegularBack in compliance
  12. 2022-01-01ChlorobenzeneMonitoring, RegularBack in compliance
  13. 2022-01-01TetrachloroethyleneMonitoring, RegularBack in compliance
  14. 2022-01-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  15. 2022-01-01TrichloroethyleneMonitoring, RegularBack in compliance
  16. 2022-01-011,2-DichloropropaneMonitoring, RegularBack in compliance
  17. 2022-01-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  18. 2022-01-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  19. 2022-01-011,2-DichloroethaneMonitoring, RegularBack in compliance
  20. 2022-01-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  21. 2022-01-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  22. 2022-01-01Vinyl chlorideMonitoring, RegularBack in compliance
  23. 2022-01-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  24. 2022-01-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  25. 2022-01-01DichloromethaneMonitoring, RegularBack in compliance
  26. 2022-01-01Xylenes, TotalMonitoring, RegularBack in compliance
  27. 2022-01-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  28. 2022-01-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  29. 2022-01-01NitrateMonitoring, RegularBack in compliance
  30. 2021-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  31. 2021-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  32. 2021-09-05Public NoticePN Violation for NPDWR ViolationBack in compliance
  33. 2021-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  34. 2021-07-01Revised Total Coliform RuleMONBack in compliance
  35. 2021-07-01Lead and Copper RuleWater Quality Parameter M/RPeriod ended · no return to compliance on file
  36. 2021-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  37. 2021-07-01Lead and Copper RuleOCCT/SOWT Study/RecommendationBack in compliance
  38. 2021-06-30Lead and Copper RuleOCCT/SOWT Study/RecommendationBack in compliance
  39. 2021-03-03Groundwater RuleFailure To Address ContaminationBack in compliance
  40. 2021-01-01Lead and Copper RuleWater Quality Parameter M/RBack in compliance
  41. 2020-01-01Combined UraniumMonitoring, RegularPeriod ended · no return to compliance on file
  42. 2020-01-01Gross Alpha, Excl. Radon and UMonitoring, RegularPeriod ended · no return to compliance on file
  43. 2020-01-01TdsMonitoring, RegularBack in compliance
  44. 2020-01-01SulfateMonitoring, RegularBack in compliance
  45. 2020-01-01FluorideMonitoring, RegularBack in compliance
  46. 2020-01-01ChlorideMonitoring, RegularBack in compliance
  47. 2020-01-01SeleniumMonitoring, RegularBack in compliance
  48. 2020-01-01ZincMonitoring, RegularBack in compliance
  49. 2020-01-01Thallium, TotalMonitoring, RegularBack in compliance
  50. 2020-01-01Beryllium, TotalMonitoring, RegularBack in compliance
  51. 2020-01-01Antimony, TotalMonitoring, RegularBack in compliance
  52. 2020-01-01SilverMonitoring, RegularBack in compliance
  53. 2020-01-01MercuryMonitoring, RegularBack in compliance
  54. 2020-01-01ManganeseMonitoring, RegularBack in compliance
  55. 2020-01-01IronMonitoring, RegularBack in compliance
  56. 2020-01-01ChromiumMonitoring, RegularBack in compliance
  57. 2020-01-01CadmiumMonitoring, RegularBack in compliance
  58. 2020-01-01BariumMonitoring, RegularBack in compliance
  59. 2020-01-01ArsenicMonitoring, RegularBack in compliance
  60. 2020-01-01AluminumMonitoring, RegularBack in compliance
  61. 2020-01-01CyanideMonitoring, RegularBack in compliance
  62. 2020-01-01Ethylene DibromideMonitoring, RegularBack in compliance
  63. 2020-01-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularBack in compliance
  64. 2020-01-01AldicarbMonitoring, RegularBack in compliance
  65. 2020-01-01CarbofuranMonitoring, RegularBack in compliance
  66. 2020-01-01Aldicarb sulfoneMonitoring, RegularBack in compliance
  67. 2020-01-01Aldicarb sulfoxideMonitoring, RegularBack in compliance
  68. 2020-01-01OxamylMonitoring, RegularBack in compliance
  69. 2020-01-012, 4, 5-TpMonitoring, RegularBack in compliance
  70. 2020-01-012, 4-DMonitoring, RegularBack in compliance
  71. 2020-01-01DinosebMonitoring, RegularBack in compliance
  72. 2020-01-01PicloramMonitoring, RegularBack in compliance
  73. 2020-01-01DalaponMonitoring, RegularBack in compliance
  74. 2020-01-01Combined Radium (-226 and -228)Monitoring, RegularPeriod ended · no return to compliance on file
  75. 2019-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance

System details

Population served171
Service connections57
Water sourceGroundwater
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityCanyon Lake
EPA ZIP on file78133-0032

Areas served

  • Comal County

Reading this record

Canyon Lake Estates Water Supply is a community water system that draws from groundwater and serves about 171 people in Canyon Lake, Texas. Everything above comes from the EPA's Safe Drinking Water Information System (SDWIS), where states report every violation by every public water system.

Four kinds of violation. Only one is a measurement of the water: over the limit means a test came back above a legal maximum (an MCL). A treatment lapse means a required protective step was not done, such as disinfection, filtration, fixing a defect an inspector found, or filing a lead-pipe inventory. A missed or late test means a required test was skipped or never reported. That is the most common kind, and the most misread: it does not mean the water was bad, and it does not mean the water was fine. Notices and reports covers public notices and the annual Consumer Confidence Report.

Status. “Back in compliance” means the state recorded a return to compliance. “Period ended” means the violation's compliance period is over but no return to compliance was ever filed, which is common in older records. EPA's federal copy lags state records by months, so call the utility for anything current.