Community Water System · PWSID AK2261444

Chignik Lagoon Water System

Serves 273 peopleGroundwaterOwner: Native AmericanChignik Lagoon, Alaska
Nothing open that measures the water, but 3 open testing or paperwork violations.

A missed test is not evidence of bad water. It also is not evidence of good water: for that period nobody checked.

On record since 1992: 79 violations. 8 treatment lapses · 69 missed or late tests · 2 notices or reports. Most recent began 2025-09-01.

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
8Treatment lapse
69Missed or late test3 open
2Notice or report

More violations on record than 87% of active water systems in Alaska. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

1992 · Treatment lapse: 1199520002001 · Missed or late test: 12003 · Missed or late test: 12003 · Notice or report: 12004 · Missed or late test: 12005 · Missed or late test: 1200520102015 · Missed or late test: 120152016 · Missed or late test: 22017 · Treatment lapse: 12017 · Missed or late test: 52017 · Missed or late test: 52018 · Missed or late test: 32019 · Treatment lapse: 12019 · Missed or late test: 32020 · Treatment lapse: 52020 · Treatment lapse: 52020 · Missed or late test: 212020 · Missed or late test: 212020 · Missed or late test: 212020 · Missed or late test: 212020 · Missed or late test: 212020 · Missed or late test: 212020 · Missed or late test: 2120202021 · Missed or late test: 52021 · Missed or late test: 52021 · Notice or report: 12022 · Missed or late test: 92022 · Missed or late test: 92022 · Missed or late test: 92023 · Missed or late test: 72023 · Missed or late test: 72023 · Missed or late test: 72024 · Missed or late test: 62024 · Missed or late test: 62025 · Missed or late test: 32025
One square ≈ 3 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
10% treatment lapse · 887% missed or late test · 693% notice or report · 2

Across Alaska, 88% of violations are missed or late tests and 2% 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 7 results on file · action level 15 ppb

11.8 ppb
5.8 ppb
3.3 ppb
3 ppb
2.7 ppb
2.5 ppb
2.2 ppb

Copper, 90th percentile 7 results on file · action level 1.3 mg/L

5 mg/L
3.8 mg/L
3.5 mg/L
3.4 mg/L
2.8 mg/L
2.4 mg/L
1.8 mg/L

Open now (3)

  1. 2025-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  2. 2004-01-01Lead and Copper RuleInitial Tap Sampling for Pb and CuOpen
  3. 2003-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuOpen

Every violation on record

  1. 2025-09-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  2. 2025-09-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  3. 2025-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  4. 2024-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  5. 2024-08-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  6. 2024-08-01Revised Total Coliform RuleMONBack in compliance
  7. 2024-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  8. 2024-07-01Revised Total Coliform RuleMONBack in compliance
  9. 2024-06-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  10. 2023-08-01Revised Total Coliform RuleMONBack in compliance
  11. 2023-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  12. 2023-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  13. 2023-04-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  14. 2023-01-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  15. 2023-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  16. 2023-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  17. 2022-12-01Revised Total Coliform RuleMONBack in compliance
  18. 2022-11-03Lead and Copper RuleLead Consumer NoticeBack in compliance
  19. 2022-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  20. 2022-09-01Revised Total Coliform RuleMONBack in compliance
  21. 2022-08-01Revised Total Coliform RuleMONBack in compliance
  22. 2022-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  23. 2022-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  24. 2022-07-01Revised Total Coliform RuleMONBack in compliance
  25. 2022-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
Show the other 50 entries
  1. 2021-12-01Revised Total Coliform RuleMONBack in compliance
  2. 2021-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  3. 2021-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  4. 2021-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  5. 2021-06-01Revised Total Coliform RuleMONBack in compliance
  6. 2021-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  7. 2020-05-09Groundwater Rule ×5Failure To Address DeficiencyBack in compliance
  8. 2020-01-01StyreneMonitoring, RegularPeriod ended · no return to compliance on file
  9. 2020-01-01EthylbenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  10. 2020-01-01TolueneMonitoring, RegularPeriod ended · no return to compliance on file
  11. 2020-01-01BenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  12. 2020-01-01ChlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  13. 2020-01-01TetrachloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  14. 2020-01-011,1,2-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  15. 2020-01-01TrichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  16. 2020-01-011,2-DichloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
  17. 2020-01-01Carbon tetrachlorideMonitoring, RegularPeriod ended · no return to compliance on file
  18. 2020-01-011,1,1-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  19. 2020-01-011,2-DichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  20. 2020-01-01trans-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  21. 2020-01-011,1-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  22. 2020-01-01Vinyl chlorideMonitoring, RegularPeriod ended · no return to compliance on file
  23. 2020-01-01p-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  24. 2020-01-01o-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  25. 2020-01-01DichloromethaneMonitoring, RegularPeriod ended · no return to compliance on file
  26. 2020-01-01Xylenes, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  27. 2020-01-01cis-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  28. 2020-01-011,2,4-TrichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  29. 2019-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  30. 2019-10-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  31. 2019-09-27Revised Total Coliform RuleTTBack in compliance
  32. 2019-05-23E. ColiMonitoring, Source Water (GWR)Back in compliance
  33. 2018-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  34. 2018-02-01Revised Total Coliform RuleMONBack in compliance
  35. 2018-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  36. 2017-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  37. 2017-09-01Revised Total Coliform RuleMONBack in compliance
  38. 2017-08-31Groundwater RuleFailure To Address DeficiencyBack in compliance
  39. 2017-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  40. 2017-05-01Revised Total Coliform RuleMONBack in compliance
  41. 2017-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  42. 2016-11-01Revised Total Coliform RuleMONBack in compliance
  43. 2016-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  44. 2015-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  45. 2005-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  46. 2004-01-01Lead and Copper RuleInitial Tap Sampling for Pb and CuOpen
  47. 2003-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuOpen
  48. 2003-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  49. 2001-01-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance
  50. 1992-01-01Surface water treatment (SWTR)Failure to Filter (SWTR)Back in compliance

System details

Population served273
Service connections83
Water sourceGroundwater
System typeCommunity Water System
OwnerNative American
StatusActive
CityChignik Lagoon
EPA ZIP on file99565

Areas served

  • Chignik Lagoon, Lake and Peninsula Borough

Reading this record

Chignik Lagoon Water System is a community water system that draws from groundwater and serves about 273 people in Chignik Lagoon, Alaska. 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.