Community Water System · PWSID TX0940015

Crystal Clear Sud

Serves 20,766 peopleSurface Water PurchasedOwner: Local GovernmentSan Marcos, Texas
Nothing open right now.

On record since 2012: 143 violations. 6 over the limit · 40 treatment lapses · 96 missed or late tests · 1 notice or report. Most recent began 2019-12-30.

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

6Over the limit
40Treatment lapse
96Missed or late test
1Notice or report

More violations on record than 97% 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

200520102012 · Treatment lapse: 102012 · Treatment lapse: 102012 · Missed or late test: 92012 · Missed or late test: 92013 · Treatment lapse: 122013 · Treatment lapse: 122013 · Missed or late test: 122013 · Missed or late test: 122014 · Treatment lapse: 122014 · Treatment lapse: 122014 · Missed or late test: 122014 · Missed or late test: 122015 · Treatment lapse: 62015 · Missed or late test: 520152017 · Missed or late test: 22019 · Over the limit: 62019 · Missed or late test: 562019 · Missed or late test: 562019 · Missed or late test: 562019 · Missed or late test: 562019 · Missed or late test: 562019 · Missed or late test: 562019 · Missed or late test: 562019 · Missed or late test: 562019 · Missed or late test: 562019 · Missed or late test: 562019 · Notice or report: 120202025
One square ≈ 6 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
4% over the limit · 628% treatment lapse · 4067% missed or late test · 96<1% notice or report · 1

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

How far over the limit

at the limit2×5×10×100×+Total Haloacetic Acids (HAA5)Trihalomethanes (TTHM)2019-07-01 · Total Haloacetic Acids (HAA5): measured 0.0670 MG/L vs limit 0.0600 MG/L (1.1×)2019-07-01 · Trihalomethanes (TTHM): measured 0.0920 MG/L vs limit 0.0800 MG/L (1.1×)2019-04-01 · Total Haloacetic Acids (HAA5): measured 0.0660 MG/L vs limit 0.0600 MG/L (1.1×)2019-04-01 · Trihalomethanes (TTHM): measured 0.0900 MG/L vs limit 0.0800 MG/L (1.1×)2019-01-01 · Total Haloacetic Acids (HAA5): measured 0.0620 MG/L vs limit 0.0600 MG/L (1.0×)2019-01-01 · Trihalomethanes (TTHM): measured 0.0940 MG/L vs limit 0.0800 MG/L (1.2×)
Each dot is one over-the-limit violation: the measured value divided by the limit it broke, on a log scale. Most legal limits for chemicals are running averages set for a lifetime of drinking, so “just over” and “ten times over” are very different news. Hover a dot for the numbers.

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

3.2 ppb
1.6 ppb
1 ppb
0 ppb
0 ppb

Every violation on record

  1. 2019-12-30Lead and Copper RuleLead Consumer NoticeBack in compliance
  2. 2019-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0670 MG/L · limit 0.0600 MG/LBack in compliance
  3. 2019-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0920 MG/L · limit 0.0800 MG/LBack in compliance
  4. 2019-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0660 MG/L · limit 0.0600 MG/LBack in compliance
  5. 2019-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0900 MG/L · limit 0.0800 MG/LBack in compliance
  6. 2019-03-15Public NoticePN Violation for NPDWR ViolationBack in compliance
  7. 2019-01-01StyreneMonitoring, RegularPeriod ended · no return to compliance on file
  8. 2019-01-01EthylbenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  9. 2019-01-01TolueneMonitoring, RegularPeriod ended · no return to compliance on file
  10. 2019-01-01BenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  11. 2019-01-01ChlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  12. 2019-01-01TetrachloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  13. 2019-01-011,1,2-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  14. 2019-01-01TrichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  15. 2019-01-011,2-DichloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
  16. 2019-01-01Carbon tetrachlorideMonitoring, RegularPeriod ended · no return to compliance on file
  17. 2019-01-011,1,1-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  18. 2019-01-011,2-DichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  19. 2019-01-01trans-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  20. 2019-01-011,1-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  21. 2019-01-01Vinyl chlorideMonitoring, RegularPeriod ended · no return to compliance on file
  22. 2019-01-01p-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  23. 2019-01-01o-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  24. 2019-01-01DichloromethaneMonitoring, RegularPeriod ended · no return to compliance on file
  25. 2019-01-01Xylenes, TotalMonitoring, RegularPeriod ended · no return to compliance on file
Show the other 118 entries
  1. 2019-01-01cis-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  2. 2019-01-011,2,4-TrichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  3. 2019-01-01ChlordaneMonitoring, RegularPeriod ended · no return to compliance on file
  4. 2019-01-01PentachlorophenolMonitoring, RegularPeriod ended · no return to compliance on file
  5. 2019-01-01Benzo(a)pyreneMonitoring, RegularPeriod ended · no return to compliance on file
  6. 2019-01-01HexachlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  7. 2019-01-01Heptachlor epoxideMonitoring, RegularPeriod ended · no return to compliance on file
  8. 2019-01-01HeptachlorMonitoring, RegularPeriod ended · no return to compliance on file
  9. 2019-01-01LassoMonitoring, RegularPeriod ended · no return to compliance on file
  10. 2019-01-01AtrazineMonitoring, RegularPeriod ended · no return to compliance on file
  11. 2019-01-01HexachlorocyclopentadieneMonitoring, RegularPeriod ended · no return to compliance on file
  12. 2019-01-01Di(2-ethylhexyl) phthalateMonitoring, RegularPeriod ended · no return to compliance on file
  13. 2019-01-01SimazineMonitoring, RegularPeriod ended · no return to compliance on file
  14. 2019-01-01Di(2-ethylhexyl) adipateMonitoring, RegularPeriod ended · no return to compliance on file
  15. 2019-01-01ToxapheneMonitoring, RegularPeriod ended · no return to compliance on file
  16. 2019-01-01MethoxychlorMonitoring, RegularPeriod ended · no return to compliance on file
  17. 2019-01-01Bhc-GammaMonitoring, RegularPeriod ended · no return to compliance on file
  18. 2019-01-01EndrinMonitoring, RegularPeriod ended · no return to compliance on file
  19. 2019-01-01TdsMonitoring, RegularPeriod ended · no return to compliance on file
  20. 2019-01-01SulfateMonitoring, RegularPeriod ended · no return to compliance on file
  21. 2019-01-01FluorideMonitoring, RegularPeriod ended · no return to compliance on file
  22. 2019-01-01ChlorideMonitoring, RegularPeriod ended · no return to compliance on file
  23. 2019-01-01SeleniumMonitoring, RegularPeriod ended · no return to compliance on file
  24. 2019-01-01ZincMonitoring, RegularPeriod ended · no return to compliance on file
  25. 2019-01-01Thallium, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  26. 2019-01-01Beryllium, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  27. 2019-01-01Antimony, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  28. 2019-01-01SilverMonitoring, RegularPeriod ended · no return to compliance on file
  29. 2019-01-01MercuryMonitoring, RegularPeriod ended · no return to compliance on file
  30. 2019-01-01ManganeseMonitoring, RegularPeriod ended · no return to compliance on file
  31. 2019-01-01IronMonitoring, RegularPeriod ended · no return to compliance on file
  32. 2019-01-01ChromiumMonitoring, RegularPeriod ended · no return to compliance on file
  33. 2019-01-01CadmiumMonitoring, RegularPeriod ended · no return to compliance on file
  34. 2019-01-01BariumMonitoring, RegularPeriod ended · no return to compliance on file
  35. 2019-01-01ArsenicMonitoring, RegularPeriod ended · no return to compliance on file
  36. 2019-01-01AluminumMonitoring, RegularPeriod ended · no return to compliance on file
  37. 2019-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0620 MG/L · limit 0.0600 MG/LBack in compliance
  38. 2019-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0940 MG/L · limit 0.0800 MG/LBack in compliance
  39. 2017-08-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  40. 2017-07-01Revised Total Coliform RuleMONBack in compliance
  41. 2015-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  42. 2015-06-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  43. 2015-05-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  44. 2015-04-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  45. 2015-04-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  46. 2015-03-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  47. 2015-03-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  48. 2015-02-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  49. 2015-02-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  50. 2015-01-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  51. 2015-01-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  52. 2014-12-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  53. 2014-12-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  54. 2014-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  55. 2014-11-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  56. 2014-10-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  57. 2014-10-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  58. 2014-09-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  59. 2014-09-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  60. 2014-08-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  61. 2014-08-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  62. 2014-07-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  63. 2014-07-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  64. 2014-06-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  65. 2014-06-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  66. 2014-05-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  67. 2014-05-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  68. 2014-04-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  69. 2014-04-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  70. 2014-03-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  71. 2014-03-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  72. 2014-02-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  73. 2014-02-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  74. 2014-01-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  75. 2014-01-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  76. 2013-12-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  77. 2013-12-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  78. 2013-11-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  79. 2013-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  80. 2013-10-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  81. 2013-10-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  82. 2013-09-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  83. 2013-09-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  84. 2013-08-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  85. 2013-08-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  86. 2013-07-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  87. 2013-07-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  88. 2013-06-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  89. 2013-06-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  90. 2013-05-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  91. 2013-05-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  92. 2013-04-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  93. 2013-04-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  94. 2013-03-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  95. 2013-03-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  96. 2013-02-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  97. 2013-02-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  98. 2013-01-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  99. 2013-01-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  100. 2012-12-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  101. 2012-12-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  102. 2012-11-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  103. 2012-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  104. 2012-10-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  105. 2012-10-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  106. 2012-09-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  107. 2012-09-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  108. 2012-08-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  109. 2012-08-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  110. 2012-07-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  111. 2012-07-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  112. 2012-06-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  113. 2012-06-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  114. 2012-05-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  115. 2012-05-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  116. 2012-04-01Surface water treatment (SWTR)Failure to Filter (SWTR)Back in compliance
  117. 2012-04-01Surface water treatment (LT2)Treatment Technique (SWTR and GWR)Back in compliance
  118. 2012-04-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance

System details

Population served20,766
Service connections6,922
Water sourceSurface Water Purchased
System typeCommunity Water System
OwnerLocal Government
StatusActive
CitySan Marcos
EPA ZIP on file78666-2100

Areas served

  • Guadalupe County

Reading this record

Crystal Clear Sud is a community water system that draws from surface water purchased and serves about 20,766 people in San Marcos, 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.