Community Water System · PWSID OR4100202

Colton Water District

Serves 1,500 peopleSurface WaterOwner: Local GovernmentColton, Oregon
Nothing open right now.

On record since 1994: 117 violations. 1 over the limit · 5 treatment lapses · 109 missed or late tests · 2 notices or reports. Most recent began 2024-10-01.

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

1Over the limit
5Treatment lapse
109Missed or late test
2Notice or report

More violations on record than 98% of active water systems in Oregon. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

1994 · Missed or late test: 11995200020052008 · Missed or late test: 32008 · Missed or late test: 320102011 · Missed or late test: 12015 · Missed or late test: 42015 · Missed or late test: 420152016 · Missed or late test: 122016 · Missed or late test: 122016 · Missed or late test: 122016 · Missed or late test: 122016 · Missed or late test: 122016 · Missed or late test: 122017 · Missed or late test: 72017 · Missed or late test: 72017 · Missed or late test: 72017 · Missed or late test: 72018 · Treatment lapse: 22018 · Missed or late test: 152018 · Missed or late test: 152018 · Missed or late test: 152018 · Missed or late test: 152018 · Missed or late test: 152018 · Missed or late test: 152018 · Missed or late test: 152018 · Missed or late test: 152018 · Notice or report: 12019 · Treatment lapse: 12019 · Missed or late test: 142019 · Missed or late test: 142019 · Missed or late test: 142019 · Missed or late test: 142019 · Missed or late test: 142019 · Missed or late test: 142019 · Missed or late test: 142020 · Treatment lapse: 12020 · Missed or late test: 82020 · Missed or late test: 82020 · Missed or late test: 82020 · Missed or late test: 820202021 · Missed or late test: 172021 · Missed or late test: 172021 · Missed or late test: 172021 · Missed or late test: 172021 · Missed or late test: 172021 · Missed or late test: 172021 · Missed or late test: 172021 · Missed or late test: 172021 · Missed or late test: 172022 · Missed or late test: 152022 · Missed or late test: 152022 · Missed or late test: 152022 · Missed or late test: 152022 · Missed or late test: 152022 · Missed or late test: 152022 · Missed or late test: 152022 · Missed or late test: 152023 · Missed or late test: 42023 · Missed or late test: 42024 · Over the limit: 12024 · Treatment lapse: 12024 · Missed or late test: 82024 · Missed or late test: 82024 · Missed or late test: 82024 · Missed or late test: 82024 · Notice or report: 12025
One square ≈ 2 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
<1% over the limit · 14% treatment lapse · 593% missed or late test · 1092% notice or report · 2

Across Oregon, 85% of violations are missed or late tests and 2% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Total Haloacetic Acids (HAA5)2024-01-01 · Total Haloacetic Acids (HAA5): measured 0.0807 MG/L vs limit 0.0600 MG/L (1.3×)
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 4 results on file · action level 15 ppb

8.3 ppb
5 ppb
1.6 ppb
0 ppb

Every violation on record

  1. 2024-10-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  2. 2024-10-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  3. 2024-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  4. 2024-04-01Surface water treatment (SWTR)Treatment Technique (SWTR and GWR)Back in compliance
  5. 2024-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  6. 2024-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  7. 2024-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0807 MG/L · limit 0.0600 MG/LBack in compliance
  8. 2024-01-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  9. 2024-01-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  10. 2023-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  11. 2023-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  12. 2023-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  13. 2023-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  14. 2022-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  15. 2022-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  16. 2022-08-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  17. 2022-08-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  18. 2022-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  19. 2022-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  20. 2022-06-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  21. 2022-06-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  22. 2022-03-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  23. 2022-03-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  24. 2022-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  25. 2022-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
Show the other 69 entries
  1. 2021-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  2. 2021-11-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  3. 2021-09-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  4. 2021-09-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  5. 2021-06-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  6. 2021-06-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  7. 2021-04-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  8. 2021-04-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  9. 2021-03-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  10. 2021-03-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  11. 2021-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  12. 2021-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  13. 2020-12-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  14. 2020-12-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  15. 2020-09-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Back in compliance
  16. 2020-04-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  17. 2020-04-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  18. 2020-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  19. 2020-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  20. 2019-12-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  21. 2019-12-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  22. 2019-10-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  23. 2019-10-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  24. 2019-07-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  25. 2019-07-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  26. 2019-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  27. 2019-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  28. 2019-02-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  29. 2019-02-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  30. 2019-02-01Surface water treatment (SWTR)Treatment Technique (SWTR and GWR)Back in compliance
  31. 2018-11-01Surface water treatment (SWTR)Treatment Technique (SWTR and GWR)Back in compliance
  32. 2018-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  33. 2018-11-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  34. 2018-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  35. 2018-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  36. 2018-07-29Public NoticePN Violation for NPDWR ViolationBack in compliance
  37. 2018-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  38. 2018-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  39. 2018-07-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  40. 2018-07-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  41. 2018-05-01Surface water treatment (SWTR)Treatment Technique (SWTR and GWR)Back in compliance
  42. 2018-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  43. 2018-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  44. 2018-01-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  45. 2018-01-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  46. 2017-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  47. 2017-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  48. 2017-03-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  49. 2017-03-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  50. 2017-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  51. 2017-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  52. 2016-08-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  53. 2016-08-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  54. 2016-07-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  55. 2016-07-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  56. 2016-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  57. 2016-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  58. 2016-03-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  59. 2016-03-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  60. 2016-01-01NitrateMonitoring, RegularBack in compliance
  61. 2015-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  62. 2015-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  63. 2015-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  64. 2015-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  65. 2011-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  66. 2008-01-01Gross Alpha, Excl. Radon and UMonitoring, RegularBack in compliance
  67. 2008-01-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  68. 2008-01-01Combined UraniumMonitoring, RegularBack in compliance
  69. 1994-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance

System details

Population served1,500
Service connections498
Water sourceSurface Water
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityColton
EPA ZIP on file97017

Areas served

  • Clackamas County

Reading this record

Colton Water District is a community water system that draws from surface water and serves about 1,500 people in Colton, Oregon. 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.