Community Water System · PWSID OK2000908

Canadian Co Rwd # 1

Serves 750 peopleGroundwaterOwner: Local GovernmentCalumet, Oklahoma
Nothing open right now.

On record since 1979: 133 violations. 64 over the limit · 69 missed or late tests. Most recent began 2025-07-01.

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

64Over the limit
0Treatment lapse
69Missed or late test
0Notice or report

More violations on record than 90% of active water systems in Oklahoma. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

1979 · Missed or late test: 31979 · Missed or late test: 31979 · Missed or late test: 31980 · Over the limit: 11980 · Missed or late test: 91980 · Missed or late test: 91980 · Missed or late test: 91980 · Missed or late test: 91980 · Missed or late test: 91980 · Missed or late test: 91980 · Missed or late test: 91980 · Missed or late test: 91980 · Missed or late test: 919801981 · Missed or late test: 101981 · Missed or late test: 101981 · Missed or late test: 101981 · Missed or late test: 101981 · Missed or late test: 101981 · Missed or late test: 101981 · Missed or late test: 101981 · Missed or late test: 101981 · Missed or late test: 101981 · Missed or late test: 101982 · Over the limit: 21982 · Over the limit: 21982 · Missed or late test: 81982 · Missed or late test: 81982 · Missed or late test: 81982 · Missed or late test: 81982 · Missed or late test: 81982 · Missed or late test: 81982 · Missed or late test: 81982 · Missed or late test: 81983 · Missed or late test: 61983 · Missed or late test: 61983 · Missed or late test: 61983 · Missed or late test: 61983 · Missed or late test: 61983 · Missed or late test: 61985 · Missed or late test: 21985 · Missed or late test: 219851986 · Over the limit: 11986 · Missed or late test: 81986 · Missed or late test: 81986 · Missed or late test: 81986 · Missed or late test: 81986 · Missed or late test: 81986 · Missed or late test: 81986 · Missed or late test: 81986 · Missed or late test: 81987 · Missed or late test: 41987 · Missed or late test: 41987 · Missed or late test: 41987 · Missed or late test: 41988 · Over the limit: 11988 · Missed or late test: 11989 · Over the limit: 119901991 · Missed or late test: 11992 · Over the limit: 31992 · Over the limit: 31992 · Over the limit: 31992 · Missed or late test: 11994 · Over the limit: 11994 · Missed or late test: 21994 · Missed or late test: 21995 · Over the limit: 11995 · Missed or late test: 119951996 · Missed or late test: 11997 · Missed or late test: 11999 · Missed or late test: 120002001 · Over the limit: 22001 · Over the limit: 22002 · Over the limit: 12003 · Over the limit: 32003 · Over the limit: 32003 · Over the limit: 32004 · Over the limit: 32004 · Over the limit: 32004 · Over the limit: 32005 · Over the limit: 42005 · Over the limit: 42005 · Over the limit: 42005 · Over the limit: 42005 · Missed or late test: 120052006 · Over the limit: 22006 · Over the limit: 22009 · Missed or late test: 120102013 · Missed or late test: 12014 · Missed or late test: 12015 · Missed or late test: 22015 · Missed or late test: 220152016 · Over the limit: 42016 · Over the limit: 42016 · Over the limit: 42016 · Over the limit: 42017 · Over the limit: 42017 · Over the limit: 42017 · Over the limit: 42017 · Over the limit: 42017 · Missed or late test: 22017 · Missed or late test: 22018 · Over the limit: 42018 · Over the limit: 42018 · Over the limit: 42018 · Over the limit: 42019 · Over the limit: 42019 · Over the limit: 42019 · Over the limit: 42019 · Over the limit: 42020 · Over the limit: 32020 · Over the limit: 32020 · Over the limit: 320202021 · Over the limit: 42021 · Over the limit: 42021 · Over the limit: 42021 · Over the limit: 42022 · Over the limit: 42022 · Over the limit: 42022 · Over the limit: 42022 · Over the limit: 42023 · Over the limit: 42023 · Over the limit: 42023 · Over the limit: 42023 · Over the limit: 42024 · Over the limit: 42024 · Over the limit: 42024 · Over the limit: 42024 · Over the limit: 42024 · Missed or late test: 22024 · Missed or late test: 22025 · Over the limit: 32025 · Over the limit: 32025 · Over the limit: 32025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
48% over the limit · 6452% missed or late test · 69

Across Oklahoma, 73% of violations are missed or late tests and 19% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Nitrate-NitriteNitrate2025-07-01 · Nitrate-Nitrite: measured 15.00 MG/L vs limit 10.00 MG/L (1.5×)2025-04-01 · Nitrate-Nitrite: measured 14.00 MG/L vs limit 10.00 MG/L (1.4×)2025-01-01 · Nitrate-Nitrite: measured 14.00 MG/L vs limit 10.00 MG/L (1.4×)2024-10-01 · Nitrate-Nitrite: measured 13.00 MG/L vs limit 10.00 MG/L (1.3×)2024-07-01 · Nitrate-Nitrite: measured 13.00 MG/L vs limit 10.00 MG/L (1.3×)2024-04-01 · Nitrate-Nitrite: measured 13.00 MG/L vs limit 10.00 MG/L (1.3×)2024-01-01 · Nitrate-Nitrite: measured 14.00 MG/L vs limit 10.00 MG/L (1.4×)2023-10-01 · Nitrate-Nitrite: measured 14.00 MG/L vs limit 10.00 MG/L (1.4×)2023-07-01 · Nitrate-Nitrite: measured 14.00 MG/L vs limit 10.00 MG/L (1.4×)2023-04-01 · Nitrate-Nitrite: measured 14.00 MG/L vs limit 10.00 MG/L (1.4×)2023-01-01 · Nitrate-Nitrite: measured 13.00 MG/L vs limit 10.00 MG/L (1.3×)2022-10-01 · Nitrate-Nitrite: measured 14.00 MG/L vs limit 10.00 MG/L (1.4×)2022-07-01 · Nitrate-Nitrite: measured 14.00 MG/L vs limit 10.00 MG/L (1.4×)2022-04-01 · Nitrate-Nitrite: measured 15.00 MG/L vs limit 10.00 MG/L (1.5×)2022-01-01 · Nitrate-Nitrite: measured 13.00 MG/L vs limit 10.00 MG/L (1.3×)2021-10-01 · Nitrate-Nitrite: measured 14.00 MG/L vs limit 10.00 MG/L (1.4×)2021-07-01 · Nitrate-Nitrite: measured 14.00 MG/L vs limit 10.00 MG/L (1.4×)2021-01-01 · Nitrate-Nitrite: measured 15.00 MG/L vs limit 10.00 MG/L (1.5×)2020-10-01 · Nitrate-Nitrite: measured 15.00 MG/L vs limit 10.00 MG/L (1.5×)2020-07-01 · Nitrate-Nitrite: measured 15.00 MG/L vs limit 10.00 MG/L (1.5×)2020-01-01 · Nitrate-Nitrite: measured 15.00 MG/L vs limit 10.00 MG/L (1.5×)2019-10-01 · Nitrate-Nitrite: measured 14.00 MG/L vs limit 10.00 MG/L (1.4×)2019-07-01 · Nitrate-Nitrite: measured 15.00 MG/L vs limit 10.00 MG/L (1.5×)2019-04-01 · Nitrate-Nitrite: measured 15.00 MG/L vs limit 10.00 MG/L (1.5×)2019-01-01 · Nitrate-Nitrite: measured 15.00 MG/L vs limit 10.00 MG/L (1.5×)2018-10-01 · Nitrate-Nitrite: measured 15.00 MG/L vs limit 10.00 MG/L (1.5×)2018-07-01 · Nitrate-Nitrite: measured 14.00 MG/L vs limit 10.00 MG/L (1.4×)2018-04-01 · Nitrate-Nitrite: measured 15.00 MG/L vs limit 10.00 MG/L (1.5×)2018-01-01 · Nitrate-Nitrite: measured 14.00 MG/L vs limit 10.00 MG/L (1.4×)2017-10-01 · Nitrate-Nitrite: measured 15.00 MG/L vs limit 10.00 MG/L (1.5×)2017-07-01 · Nitrate-Nitrite: measured 15.00 MG/L vs limit 10.00 MG/L (1.5×)2017-04-01 · Nitrate-Nitrite: measured 14.00 MG/L vs limit 10.00 MG/L (1.4×)2017-01-01 · Nitrate-Nitrite: measured 14.00 MG/L vs limit 10.00 MG/L (1.4×)2016-10-01 · Nitrate-Nitrite: measured 14.00 MG/L vs limit 10.00 MG/L (1.4×)2016-07-01 · Nitrate-Nitrite: measured 14.00 MG/L vs limit 10.00 MG/L (1.4×)2016-04-01 · Nitrate-Nitrite: measured 14.00 MG/L vs limit 10.00 MG/L (1.4×)2016-01-01 · Nitrate-Nitrite: measured 14.00 MG/L vs limit 10.00 MG/L (1.4×)2006-04-01 · Nitrate-Nitrite: measured 13.00 MG/L vs limit 10.00 MG/L (1.3×)2006-01-01 · Nitrate-Nitrite: measured 13.00 MG/L vs limit 10.00 MG/L (1.3×)2005-10-01 · Nitrate-Nitrite: measured 14.00 vs limit 10.00 (1.4×)2005-07-01 · Nitrate-Nitrite: measured 13.00 MG/L vs limit 10.00 MG/L (1.3×)2005-04-01 · Nitrate-Nitrite: measured 12.00 vs limit 10.00 (1.2×)2004-10-01 · Nitrate-Nitrite: measured 12.00 vs limit 10.00 (1.2×)2003-07-01 · Nitrate-Nitrite: measured 12.30 vs limit 10.00 (1.2×)2001-10-01 · Nitrate: measured 11.50 vs limit 10.00 (1.1×)2001-07-01 · Nitrate: measured 11.50 vs limit 10.00 (1.1×)1994-10-01 · Nitrate: measured 10.56 vs limit 10.00 (1.1×)1982-03-19 · Nitrate: measured 11.00 vs limit 10.00 (1.1×)1982-03-01 · Nitrate: measured 1.10 vs limit 1.00 (1.1×)
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 18 results on file · action level 15 ppb

6.1 ppb
6.1 ppb
5.6 ppb
5.5 ppb
5.5 ppb
5.3 ppb
5.3 ppb
5.1 ppb
5.1 ppb
1.2 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb

Every violation on record

  1. 2025-07-01Nitrate-NitriteMCL, Single Samplemeasured 15.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  2. 2025-04-01Nitrate-NitriteMCL, Single Samplemeasured 14.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  3. 2025-01-01Nitrate-NitriteMCL, Single Samplemeasured 14.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  4. 2024-10-01Nitrate-NitriteMCL, Single Samplemeasured 13.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  5. 2024-08-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  6. 2024-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  7. 2024-07-01Nitrate-NitriteMCL, Single Samplemeasured 13.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  8. 2024-04-01Nitrate-NitriteMCL, Single Samplemeasured 13.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  9. 2024-01-01Nitrate-NitriteMCL, Single Samplemeasured 14.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  10. 2023-10-01Nitrate-NitriteMCL, Single Samplemeasured 14.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  11. 2023-07-01Nitrate-NitriteMCL, Single Samplemeasured 14.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  12. 2023-04-01Nitrate-NitriteMCL, Single Samplemeasured 14.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  13. 2023-01-01Nitrate-NitriteMCL, Single Samplemeasured 13.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  14. 2022-10-01Nitrate-NitriteMCL, Single Samplemeasured 14.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  15. 2022-07-01Nitrate-NitriteMCL, Single Samplemeasured 14.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  16. 2022-04-01Nitrate-NitriteMCL, Single Samplemeasured 15.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  17. 2022-01-01Nitrate-NitriteMCL, Single Samplemeasured 13.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  18. 2021-10-01Nitrate-NitriteMCL, Single Samplemeasured 14.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  19. 2021-07-01Nitrate-NitriteMCL, Single Samplemeasured 14.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  20. 2021-04-01Nitrate-NitriteMCL, Single Samplemeasured 16.00 MG/LPeriod ended · no return to compliance on file
  21. 2021-01-01Nitrate-NitriteMCL, Single Samplemeasured 15.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  22. 2020-10-01Nitrate-NitriteMCL, Single Samplemeasured 15.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  23. 2020-07-01Nitrate-NitriteMCL, Single Samplemeasured 15.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  24. 2020-01-01Nitrate-NitriteMCL, Single Samplemeasured 15.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  25. 2019-10-01Nitrate-NitriteMCL, Single Samplemeasured 14.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
Show the other 108 entries
  1. 2019-07-01Nitrate-NitriteMCL, Single Samplemeasured 15.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  2. 2019-04-01Nitrate-NitriteMCL, Single Samplemeasured 15.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  3. 2019-01-01Nitrate-NitriteMCL, Single Samplemeasured 15.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  4. 2018-10-01Nitrate-NitriteMCL, Single Samplemeasured 15.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  5. 2018-07-01Nitrate-NitriteMCL, Single Samplemeasured 14.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  6. 2018-04-01Nitrate-NitriteMCL, Single Samplemeasured 15.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  7. 2018-01-01Nitrate-NitriteMCL, Single Samplemeasured 14.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  8. 2017-10-01Nitrate-NitriteMCL, Single Samplemeasured 15.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  9. 2017-07-01Nitrate-NitriteMCL, Single Samplemeasured 15.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  10. 2017-05-01Revised Total Coliform RuleMONBack in compliance
  11. 2017-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  12. 2017-04-01Nitrate-NitriteMCL, Single Samplemeasured 14.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  13. 2017-01-01Nitrate-NitriteMCL, Single Samplemeasured 14.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  14. 2016-10-01Nitrate-NitriteMCL, Single Samplemeasured 14.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  15. 2016-07-01Nitrate-NitriteMCL, Single Samplemeasured 14.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  16. 2016-04-01Nitrate-NitriteMCL, Single Samplemeasured 14.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  17. 2016-01-01Nitrate-NitriteMCL, Single Samplemeasured 14.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  18. 2015-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  19. 2015-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  20. 2014-05-13E. ColiMonitoring, Source Water (GWR)Back in compliance
  21. 2013-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  22. 2009-10-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance
  23. 2006-04-01Nitrate-NitriteMCL, Single Samplemeasured 13.00 MG/L · limit 10.00 MG/LBack in compliance
  24. 2006-01-01Nitrate-NitriteMCL, Single Samplemeasured 13.00 MG/L · limit 10.00 MG/LBack in compliance
  25. 2005-10-01Nitrate-NitriteMCL, Single Samplemeasured 14.00 · limit 10.00 Back in compliance
  26. 2005-07-01Nitrate-NitriteMCL, Single Samplemeasured 13.00 MG/L · limit 10.00 MG/LBack in compliance
  27. 2005-04-01Nitrate-NitriteMCL, Averagemeasured 12.00 · limit 10.00 Back in compliance
  28. 2005-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  29. 2005-01-01Nitrate-NitriteMCL, Single Samplemeasured 11.90 Back in compliance
  30. 2004-10-01Nitrate-NitriteMCL, Single Samplemeasured 12.00 · limit 10.00 Back in compliance
  31. 2004-04-01Nitrate-NitriteMCL, Single Samplemeasured 11.90 Back in compliance
  32. 2004-01-01Nitrate-NitriteMCL, Single Samplemeasured 13.50 Back in compliance
  33. 2003-10-01Nitrate-NitriteMCL, Averagemeasured 12.30 Back in compliance
  34. 2003-07-01Nitrate-NitriteMCL, Averagemeasured 12.30 · limit 10.00 Back in compliance
  35. 2003-04-01NitrateMCL, Averagemeasured 10.55 Back in compliance
  36. 2002-01-01NitrateMCL, Averagemeasured 10.85 Back in compliance
  37. 2001-10-01NitrateMCL, Averagemeasured 11.50 · limit 10.00 Back in compliance
  38. 2001-07-01NitrateMCL, Averagemeasured 11.50 · limit 10.00 Back in compliance
  39. 1999-03-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  40. 1997-12-01Coliform (TCR)Monitoring, Routine Minor (TCR)Back in compliance
  41. 1996-11-01Coliform (TCR)Monitoring, Routine Minor (TCR)Back in compliance
  42. 1995-11-01Coliform (TCR)Monitoring, Routine Minor (TCR)Back in compliance
  43. 1995-10-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  44. 1994-10-01NitrateMCL, Averagemeasured 10.56 · limit 10.00 Back in compliance
  45. 1994-02-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  46. 1994-01-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance
  47. 1992-11-01Coliform (TCR)Monitoring, Routine Minor (TCR)Back in compliance
  48. 1992-10-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  49. 1992-09-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  50. 1992-03-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  51. 1991-02-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  52. 1989-06-01Coliform (Pre-TCR)MCL, Averagemeasured 2.00 Back in compliance
  53. 1988-09-01Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  54. 1988-08-01Coliform (Pre-TCR)MCL, Averagemeasured 10.00 Back in compliance
  55. 1987-12-01Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  56. 1987-09-01Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  57. 1987-05-01Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  58. 1987-04-01Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  59. 1986-12-01Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  60. 1986-10-01Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  61. 1986-09-01Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  62. 1986-08-01Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  63. 1986-07-01Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  64. 1986-06-01Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  65. 1986-05-01Coliform (Pre-TCR)MCL, Averagemeasured 5.00 Back in compliance
  66. 1986-04-01Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  67. 1986-03-01Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  68. 1985-12-01Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  69. 1985-11-01Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  70. 1983-12-01Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  71. 1983-09-30Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  72. 1983-08-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  73. 1983-06-30Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  74. 1983-05-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  75. 1983-04-30Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  76. 1982-11-30Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  77. 1982-10-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  78. 1982-09-30Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  79. 1982-06-30Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  80. 1982-05-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  81. 1982-04-30Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  82. 1982-03-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  83. 1982-03-19NitrateMCL, Averagemeasured 11.00 · limit 10.00 Back in compliance
  84. 1982-03-01NitrateMCL, Averagemeasured 1.10 · limit 1.00 Back in compliance
  85. 1982-01-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  86. 1981-12-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  87. 1981-11-30Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  88. 1981-10-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  89. 1981-09-30Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  90. 1981-08-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  91. 1981-07-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  92. 1981-06-30Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  93. 1981-05-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  94. 1981-04-30Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  95. 1981-01-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  96. 1980-12-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  97. 1980-11-30Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  98. 1980-10-31Coliform (Pre-TCR)Monitoring, Check/Repeat/ConfirmationBack in compliance
  99. 1980-10-31Coliform (Pre-TCR)MCL, Averagemeasured 26.00 · limit 1.00 Back in compliance
  100. 1980-08-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  101. 1980-07-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  102. 1980-06-30Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  103. 1980-04-30Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  104. 1980-02-29Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  105. 1980-01-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  106. 1979-12-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  107. 1979-11-30Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  108. 1979-10-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance

System details

Population served750
Service connections453
Water sourceGroundwater
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityCalumet
EPA ZIP on file73014

Areas served

  • Canadian County

Reading this record

Canadian Co Rwd # 1 is a community water system that draws from groundwater and serves about 750 people in Calumet, Oklahoma. 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.