Non-Transient Non-Community · PWSID CO0108420

Monarch Mountain Lodge

Serves 247 peopleGroundwater Under InfluenceOwner: PrivateKaty, Texas
1 open treatment violation.

Open for: Lead service line inventory. 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 2003: 170 violations. 7 treatment lapses · 148 missed or late tests · 15 notices or reports. Most recent began 2025-10-18.

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
7Treatment lapse1 open
148Missed or late test3 open
15Notice or report3 open

More violations on record than 98% 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

2003 · Notice or report: 120052010 · Missed or late test: 120102011 · Notice or report: 12013 · Treatment lapse: 12014 · Treatment lapse: 12015 · Missed or late test: 120152016 · Treatment lapse: 12016 · Missed or late test: 22017 · Missed or late test: 32019 · Missed or late test: 82019 · Missed or late test: 82020 · Treatment lapse: 12020 · Missed or late test: 462020 · Missed or late test: 462020 · Missed or late test: 462020 · Missed or late test: 462020 · Missed or late test: 462020 · Missed or late test: 462020 · Missed or late test: 462020 · Missed or late test: 462020 · Missed or late test: 462020 · Missed or late test: 4620202021 · Treatment lapse: 12021 · Missed or late test: 12021 · Notice or report: 12022 · Missed or late test: 12023 · Missed or late test: 182023 · Missed or late test: 182023 · Missed or late test: 182023 · Missed or late test: 182024 · Treatment lapse: 22024 · Missed or late test: 492024 · Missed or late test: 492024 · Missed or late test: 492024 · Missed or late test: 492024 · Missed or late test: 492024 · Missed or late test: 492024 · Missed or late test: 492024 · Missed or late test: 492024 · Missed or late test: 492024 · Missed or late test: 492024 · Notice or report: 62024 · Notice or report: 62025 · Missed or late test: 182025 · Missed or late test: 182025 · Missed or late test: 182025 · Missed or late test: 182025 · Notice or report: 62025 · Notice or report: 62025
One square ≈ 5 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
4% treatment lapse · 787% missed or late test · 1489% notice or report · 15

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

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 8 results on file · action level 15 ppb

6.5 ppb
6 ppb
4.5 ppb
4 ppb
2.5 ppb
2 ppb
0 ppb
0 ppb

Open now (7)

  1. 2025-10-18Public NoticePN Violation without NPDWR ViolationOpen
  2. 2025-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  3. 2024-10-17Lead service line inventoryRPTOpen
  4. 2024-10-17Lead service line inventoryTTOpen
  5. 2024-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  6. 2024-06-28Revised Total Coliform RuleOtherOpen
  7. 2023-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen

Every violation on record

  1. 2025-10-18Public NoticePN Violation without NPDWR ViolationOpen
  2. 2025-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  3. 2025-09-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  4. 2025-09-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  5. 2025-07-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  6. 2025-07-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  7. 2025-07-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  8. 2025-06-08Public NoticePN Violation for NPDWR ViolationBack in compliance
  9. 2025-06-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  10. 2025-06-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  11. 2025-05-05Public NoticePN Violation for NPDWR ViolationBack in compliance
  12. 2025-05-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  13. 2025-05-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  14. 2025-04-29Public NoticePN Violation without NPDWR ViolationBack in compliance
  15. 2025-04-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  16. 2025-04-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  17. 2025-04-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  18. 2025-03-08Public NoticePN Violation for NPDWR ViolationBack in compliance
  19. 2025-03-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  20. 2025-03-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  21. 2025-02-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  22. 2025-02-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  23. 2025-01-29Public NoticePN Violation without NPDWR ViolationBack in compliance
  24. 2025-01-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  25. 2024-12-08Public NoticePN Violation for NPDWR ViolationBack in compliance
Show the other 145 entries
  1. 2024-12-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  2. 2024-12-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  3. 2024-11-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  4. 2024-11-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  5. 2024-10-29Public NoticePN Violation without NPDWR ViolationBack in compliance
  6. 2024-10-17Lead service line inventoryRPTOpen
  7. 2024-10-17Lead service line inventoryTTOpen
  8. 2024-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  9. 2024-10-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  10. 2024-08-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  11. 2024-08-01Revised Total Coliform RuleMONBack in compliance
  12. 2024-07-29Public NoticePN Violation without NPDWR ViolationBack in compliance
  13. 2024-07-13Public NoticePN Violation for NPDWR ViolationBack in compliance
  14. 2024-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  15. 2024-06-28Revised Total Coliform RuleOtherOpen
  16. 2024-05-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Back in compliance
  17. 2024-04-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  18. 2024-02-01E. ColiMonitoring, Source Water (LT2)Back in compliance
  19. 2024-01-01StyreneMonitoring, RegularPeriod ended · no return to compliance on file
  20. 2024-01-01EthylbenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  21. 2024-01-01TolueneMonitoring, RegularPeriod ended · no return to compliance on file
  22. 2024-01-01BenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  23. 2024-01-01ChlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  24. 2024-01-01TetrachloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  25. 2024-01-011,1,2-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  26. 2024-01-01TrichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  27. 2024-01-011,2-DichloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
  28. 2024-01-01Carbon tetrachlorideMonitoring, RegularPeriod ended · no return to compliance on file
  29. 2024-01-011,1,1-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  30. 2024-01-011,2-DichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  31. 2024-01-01trans-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  32. 2024-01-011,1-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  33. 2024-01-01Vinyl chlorideMonitoring, RegularPeriod ended · no return to compliance on file
  34. 2024-01-01p-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  35. 2024-01-01o-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  36. 2024-01-01DichloromethaneMonitoring, RegularPeriod ended · no return to compliance on file
  37. 2024-01-01Xylenes, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  38. 2024-01-01cis-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  39. 2024-01-011,2,4-TrichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  40. 2024-01-01NitrateMonitoring, RegularPeriod ended · no return to compliance on file
  41. 2024-01-01SeleniumMonitoring, RegularPeriod ended · no return to compliance on file
  42. 2024-01-01Thallium, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  43. 2024-01-01Beryllium, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  44. 2024-01-01Antimony, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  45. 2024-01-01SodiumMonitoring, RegularPeriod ended · no return to compliance on file
  46. 2024-01-01NickelMonitoring, RegularPeriod ended · no return to compliance on file
  47. 2024-01-01MercuryMonitoring, RegularPeriod ended · no return to compliance on file
  48. 2024-01-01ChromiumMonitoring, RegularPeriod ended · no return to compliance on file
  49. 2024-01-01CadmiumMonitoring, RegularPeriod ended · no return to compliance on file
  50. 2024-01-01BariumMonitoring, RegularPeriod ended · no return to compliance on file
  51. 2024-01-01ArsenicMonitoring, RegularPeriod ended · no return to compliance on file
  52. 2024-01-01FluorideMonitoring, RegularPeriod ended · no return to compliance on file
  53. 2024-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  54. 2024-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  55. 2024-01-01E. ColiMonitoring, Source Water (LT2)Back in compliance
  56. 2024-01-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  57. 2023-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  58. 2023-10-01E. ColiMonitoring, Source Water (LT2)Back in compliance
  59. 2023-09-01E. ColiMonitoring, Source Water (LT2)Back in compliance
  60. 2023-08-01E. ColiMonitoring, Source Water (LT2)Back in compliance
  61. 2023-07-01E. ColiMonitoring, Source Water (LT2)Back in compliance
  62. 2023-05-01E. ColiMonitoring, Source Water (LT2)Back in compliance
  63. 2023-01-01SeleniumMonitoring, RegularBack in compliance
  64. 2023-01-01Thallium, TotalMonitoring, RegularBack in compliance
  65. 2023-01-01Beryllium, TotalMonitoring, RegularBack in compliance
  66. 2023-01-01Antimony, TotalMonitoring, RegularBack in compliance
  67. 2023-01-01SodiumMonitoring, RegularBack in compliance
  68. 2023-01-01NickelMonitoring, RegularBack in compliance
  69. 2023-01-01MercuryMonitoring, RegularBack in compliance
  70. 2023-01-01ChromiumMonitoring, RegularBack in compliance
  71. 2023-01-01CadmiumMonitoring, RegularBack in compliance
  72. 2023-01-01BariumMonitoring, RegularBack in compliance
  73. 2023-01-01ArsenicMonitoring, RegularBack in compliance
  74. 2023-01-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  75. 2022-01-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  76. 2021-12-10Public NoticePN Violation for NPDWR ViolationBack in compliance
  77. 2021-11-01DBP Stage 1Treatment Technique No Certif. OperatorBack in compliance
  78. 2021-01-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  79. 2020-12-01Revised Total Coliform RuleMONBack in compliance
  80. 2020-12-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  81. 2020-12-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  82. 2020-10-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  83. 2020-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  84. 2020-10-01Revised Total Coliform RuleMONBack in compliance
  85. 2020-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  86. 2020-05-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Back in compliance
  87. 2020-03-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  88. 2020-03-01Revised Total Coliform RuleMONBack in compliance
  89. 2020-01-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  90. 2020-01-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  91. 2020-01-011,2-DichloroethaneMonitoring, RegularBack in compliance
  92. 2020-01-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  93. 2020-01-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  94. 2020-01-01Vinyl chlorideMonitoring, RegularBack in compliance
  95. 2020-01-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  96. 2020-01-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  97. 2020-01-01DichloromethaneMonitoring, RegularBack in compliance
  98. 2020-01-01Xylenes, TotalMonitoring, RegularBack in compliance
  99. 2020-01-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  100. 2020-01-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  101. 2020-01-01NitrateMonitoring, RegularBack in compliance
  102. 2020-01-01SeleniumMonitoring, RegularBack in compliance
  103. 2020-01-01Thallium, TotalMonitoring, RegularBack in compliance
  104. 2020-01-01Beryllium, TotalMonitoring, RegularBack in compliance
  105. 2020-01-01Antimony, TotalMonitoring, RegularBack in compliance
  106. 2020-01-01SodiumMonitoring, RegularBack in compliance
  107. 2020-01-01NickelMonitoring, RegularBack in compliance
  108. 2020-01-01MercuryMonitoring, RegularBack in compliance
  109. 2020-01-01ChromiumMonitoring, RegularBack in compliance
  110. 2020-01-01CadmiumMonitoring, RegularBack in compliance
  111. 2020-01-01BariumMonitoring, RegularBack in compliance
  112. 2020-01-01ArsenicMonitoring, RegularBack in compliance
  113. 2020-01-01FluorideMonitoring, RegularBack in compliance
  114. 2020-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  115. 2020-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  116. 2020-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  117. 2020-01-01StyreneMonitoring, RegularBack in compliance
  118. 2020-01-01EthylbenzeneMonitoring, RegularBack in compliance
  119. 2020-01-01TolueneMonitoring, RegularBack in compliance
  120. 2020-01-01BenzeneMonitoring, RegularBack in compliance
  121. 2020-01-01ChlorobenzeneMonitoring, RegularBack in compliance
  122. 2020-01-01TetrachloroethyleneMonitoring, RegularBack in compliance
  123. 2020-01-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  124. 2020-01-01TrichloroethyleneMonitoring, RegularBack in compliance
  125. 2020-01-011,2-DichloropropaneMonitoring, RegularBack in compliance
  126. 2019-12-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  127. 2019-12-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  128. 2019-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  129. 2019-09-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  130. 2019-09-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  131. 2019-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  132. 2019-07-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  133. 2019-07-01Revised Total Coliform RuleMONBack in compliance
  134. 2017-09-01Revised Total Coliform RuleMONBack in compliance
  135. 2017-09-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  136. 2017-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  137. 2016-10-27Dbp Stage 2Failure Submit IDSE/Subpart V Plan RptBack in compliance
  138. 2016-04-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  139. 2016-04-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Back in compliance
  140. 2015-01-01NitrateMonitoring, RegularBack in compliance
  141. 2014-11-07Surface water treatment (SWTR)Failure to Filter (SWTR)Back in compliance
  142. 2013-12-01Surface water treatment (SWTR)Failure to Filter (SWTR)Back in compliance
  143. 2011-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  144. 2010-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  145. 2003-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served247
Service connections32
Water sourceGroundwater Under Influence
System typeNon-Transient Non-Community
OwnerPrivate
StatusActive
CityKaty
EPA ZIP on file77449

Areas served

  • Chaffee County

Reading this record

Monarch Mountain Lodge is a non-transient non-community that draws from groundwater under influence and serves about 247 people in Katy, 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.