Community Water System · PWSID AZ0405002

Graham County Utilities - Pima

Serves 3,799 peopleGroundwaterOwner: PrivatePima, Arizona
Nothing open that measures the water, but 2 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 2005: 43 violations. 5 treatment lapses · 22 missed or late tests · 16 notices or reports. Most recent began 2025-07-01.

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
5Treatment lapse
22Missed or late test1 open
16Notice or report1 open

More violations on record than 84% 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

2005 · Notice or report: 120052008 · Notice or report: 120102011 · Notice or report: 22011 · Notice or report: 22012 · Notice or report: 12014 · Notice or report: 12015 · Missed or late test: 120152016 · Missed or late test: 82016 · Missed or late test: 82016 · Missed or late test: 82016 · Missed or late test: 82016 · Missed or late test: 82016 · Missed or late test: 82016 · Missed or late test: 82016 · Missed or late test: 82019 · Missed or late test: 22019 · Missed or late test: 22019 · Notice or report: 22019 · Notice or report: 22020 · Missed or late test: 42020 · Missed or late test: 42020 · Missed or late test: 42020 · Missed or late test: 42020 · Notice or report: 120202021 · Missed or late test: 62021 · Missed or late test: 62021 · Missed or late test: 62021 · Missed or late test: 62021 · Missed or late test: 62021 · Missed or late test: 62021 · Notice or report: 42021 · Notice or report: 42021 · Notice or report: 42021 · Notice or report: 42022 · Treatment lapse: 42022 · Treatment lapse: 42022 · Treatment lapse: 42022 · Treatment lapse: 42022 · Missed or late test: 12022 · Notice or report: 12023 · Notice or report: 12025 · Treatment lapse: 12025 · Notice or report: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
12% treatment lapse · 551% missed or late test · 2237% notice or report · 16

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 7 results on file · action level 15 ppb

0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb

Open now (2)

  1. 2025-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen
  2. 2021-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen

Every violation on record

  1. 2025-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen
  2. 2025-02-23Groundwater RuleFailure To Address DeficiencyBack in compliance
  3. 2023-04-02Public NoticePN Violation for NPDWR ViolationBack in compliance
  4. 2022-07-01Groundwater Rule ×2Failure To Address DeficiencyBack in compliance
  5. 2022-06-01Groundwater RuleFailure To Address DeficiencyBack in compliance
  6. 2022-03-17Groundwater RuleFailure To Address DeficiencyBack in compliance
  7. 2022-02-13Public NoticePN Violation for NPDWR ViolationBack in compliance
  8. 2022-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  9. 2021-11-25Public NoticePN Violation for NPDWR ViolationBack in compliance
  10. 2021-10-02Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  11. 2021-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  12. 2021-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  13. 2021-08-01Revised Total Coliform RuleRPTBack in compliance
  14. 2021-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  15. 2021-07-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  16. 2021-06-01Revised Total Coliform RuleMONBack in compliance
  17. 2021-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  18. 2021-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  19. 2020-10-02Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  20. 2020-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  21. 2020-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  22. 2020-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  23. 2020-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  24. 2019-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  25. 2019-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
Show the other 17 entries
  1. 2019-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  2. 2019-02-01Revised Total Coliform RuleRPTBack in compliance
  3. 2016-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  4. 2016-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  5. 2016-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  6. 2016-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  7. 2016-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  8. 2016-02-01Coliform (TCR)Monitoring, Routine Minor (TCR)Back in compliance
  9. 2016-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  10. 2016-01-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  11. 2015-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  12. 2014-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  13. 2012-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  14. 2011-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  15. 2011-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  16. 2008-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  17. 2005-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served3,799
Service connections1,632
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityPima
EPA ZIP on file85543

Areas served

  • Pima, Graham County

Reading this record

Graham County Utilities - Pima is a community water system that draws from groundwater and serves about 3,799 people in Pima, 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.