Community Water System · PWSID NN0403060

Chinle Usd 24 Administration Center

Serves 220 peopleGroundwaterOwner: Local GovernmentChinle, Arizona
Nothing open that measures the water, but 4 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 2004: 65 violations. 29 missed or late tests · 36 notices or reports. Most recent began 2025-08-01.

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
0Treatment lapse
29Missed or late test
36Notice or report4 open

More violations on record than 91% of active water systems in Arizona. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2004 · Notice or report: 120052006 · Notice or report: 12008 · Missed or late test: 12008 · Notice or report: 12009 · Notice or report: 12010 · Notice or report: 120102011 · Notice or report: 12013 · Notice or report: 12015 · Missed or late test: 22015 · Missed or late test: 220152016 · Missed or late test: 22016 · Missed or late test: 22016 · Notice or report: 12017 · Notice or report: 12018 · Missed or late test: 12019 · Missed or late test: 42019 · Missed or late test: 42019 · Missed or late test: 42019 · Missed or late test: 42019 · Notice or report: 52019 · Notice or report: 52019 · Notice or report: 52019 · Notice or report: 52019 · Notice or report: 52020 · Notice or report: 92020 · Notice or report: 92020 · Notice or report: 92020 · Notice or report: 92020 · Notice or report: 92020 · Notice or report: 92020 · Notice or report: 92020 · Notice or report: 92020 · Notice or report: 920202021 · Missed or late test: 42021 · Missed or late test: 42021 · Missed or late test: 42021 · Missed or late test: 42021 · Notice or report: 22021 · Notice or report: 22022 · Missed or late test: 42022 · Missed or late test: 42022 · Missed or late test: 42022 · Missed or late test: 42022 · Notice or report: 42022 · Notice or report: 42022 · Notice or report: 42022 · Notice or report: 42023 · Missed or late test: 32023 · Missed or late test: 32023 · Missed or late test: 32023 · Notice or report: 32023 · Notice or report: 32023 · Notice or report: 32024 · Missed or late test: 52024 · Missed or late test: 52024 · Missed or late test: 52024 · Missed or late test: 52024 · Missed or late test: 52024 · Notice or report: 32024 · Notice or report: 32024 · Notice or report: 32025 · Missed or late test: 32025 · Missed or late test: 32025 · Missed or late test: 32025 · Notice or report: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
45% missed or late test · 2955% notice or report · 36

Across Arizona, 65% of violations are missed or late tests and 5% 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 2 results on file · action level 15 ppb

15.5 ppb
below 5 ppb

Open now (4)

  1. 2025-08-01Revised Total Coliform RuleRPTOpen
  2. 2024-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen
  3. 2023-07-01Public NoticePN Violation for NPDWR ViolationOpen
  4. 2023-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen

Every violation on record

  1. 2025-08-01Revised Total Coliform RuleRPTOpen
  2. 2025-03-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  3. 2025-02-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  4. 2025-01-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  5. 2024-12-01Revised Total Coliform RuleRPTBack in compliance
  6. 2024-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  7. 2024-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen
  8. 2024-04-01Revised Total Coliform RuleRPTBack in compliance
  9. 2024-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  10. 2024-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  11. 2024-01-01NitriteMonitoring, RegularPeriod ended · no return to compliance on file
  12. 2024-01-01NitrateMonitoring, RegularPeriod ended · no return to compliance on file
  13. 2023-10-01Revised Total Coliform RuleRPTBack in compliance
  14. 2023-07-01Public NoticePN Violation for NPDWR ViolationOpen
  15. 2023-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen
  16. 2023-07-01Revised Total Coliform RuleMONBack in compliance
  17. 2023-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  18. 2023-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  19. 2022-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  20. 2022-09-01Revised Total Coliform RuleRPTBack in compliance
  21. 2022-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  22. 2022-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  23. 2022-05-01Revised Total Coliform RuleRPTBack in compliance
  24. 2022-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  25. 2022-03-01Revised Total Coliform RuleRPTBack in compliance
Show the other 40 entries
  1. 2022-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  2. 2021-12-01Revised Total Coliform RuleMONBack in compliance
  3. 2021-08-01Revised Total Coliform RuleMONBack in compliance
  4. 2021-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  5. 2021-06-01Revised Total Coliform RuleRPTBack in compliance
  6. 2021-01-01NitriteMonitoring, RegularBack in compliance
  7. 2021-01-01NitrateMonitoring, RegularBack in compliance
  8. 2020-08-01Revised Total Coliform RuleRPTBack in compliance
  9. 2020-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  10. 2020-07-01Revised Total Coliform RuleRPTBack in compliance
  11. 2020-06-01Revised Total Coliform RuleRPTBack in compliance
  12. 2020-05-01Revised Total Coliform RuleRPTBack in compliance
  13. 2020-04-01Revised Total Coliform RuleRPTBack in compliance
  14. 2020-03-01Revised Total Coliform RuleRPTBack in compliance
  15. 2020-02-01Revised Total Coliform RuleRPTBack in compliance
  16. 2020-01-01Revised Total Coliform RuleRPTBack in compliance
  17. 2019-12-01Revised Total Coliform RuleRPTBack in compliance
  18. 2019-11-01Revised Total Coliform RuleRPTBack in compliance
  19. 2019-10-01Revised Total Coliform RuleRPTBack in compliance
  20. 2019-09-01Revised Total Coliform RuleMONBack in compliance
  21. 2019-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  22. 2019-07-01Revised Total Coliform RuleMONBack in compliance
  23. 2019-03-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  24. 2019-03-01Revised Total Coliform RuleMONBack in compliance
  25. 2019-01-01SodiumMonitoring, RegularBack in compliance
  26. 2018-07-01Revised Total Coliform RuleMONBack in compliance
  27. 2017-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  28. 2016-11-01Revised Total Coliform RuleMONBack in compliance
  29. 2016-04-01Revised Total Coliform RuleOtherBack in compliance
  30. 2016-03-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  31. 2015-01-01NitriteMonitoring, RegularBack in compliance
  32. 2015-01-01NitrateMonitoring, RegularBack in compliance
  33. 2013-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  34. 2011-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  35. 2010-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  36. 2009-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  37. 2008-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  38. 2008-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  39. 2006-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  40. 2004-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served220
Service connections57
Water sourceGroundwater
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityChinle
EPA ZIP on file86503

Areas served

  • Chinle

Reading this record

Chinle Usd 24 Administration Center is a community water system that draws from groundwater and serves about 220 people in Chinle, Arizona. 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.