Community Water System · PWSID 090400088

Fort Mcdowell Community

Serves 7,260 peopleGroundwaterOwner: Native AmericanFountain Hills, Arizona
Nothing open right now.

On record since 2010: 33 violations. 15 over the limit · 10 missed or late tests · 8 notices or reports. 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.

15Over the limit
0Treatment lapse
10Missed or late test
8Notice or report

More violations on record than 79% 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

20052010 · Missed or late test: 1201020152017 · Missed or late test: 72017 · Missed or late test: 72017 · Missed or late test: 72017 · Missed or late test: 72017 · Missed or late test: 72017 · Missed or late test: 72017 · Missed or late test: 72019 · Over the limit: 32019 · Over the limit: 32019 · Over the limit: 32020 · Over the limit: 22020 · Over the limit: 220202021 · Over the limit: 32021 · Over the limit: 32021 · Over the limit: 32022 · Over the limit: 22022 · Over the limit: 22022 · Notice or report: 22022 · Notice or report: 22023 · Over the limit: 32023 · Over the limit: 32023 · Over the limit: 32023 · Notice or report: 52023 · Notice or report: 52023 · Notice or report: 52023 · Notice or report: 52023 · Notice or report: 52024 · Over the limit: 12024 · Notice or report: 12025 · Over the limit: 12025 · Missed or late test: 22025 · Missed or late test: 22025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
45% over the limit · 1530% missed or late test · 1024% notice or report · 8

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 4 results on file · action level 15 ppb

3.9 ppb
2.6 ppb
1.6 ppb
1.5 ppb

Every violation on record

  1. 2025-07-01NitrateMonitoring, RegularPeriod ended · no return to compliance on file
  2. 2025-07-01ArsenicMonitoring, RegularPeriod ended · no return to compliance on file
  3. 2025-01-01ArsenicMCL, Averagemeasured 0.0105 MG/LPeriod ended · no return to compliance on file
  4. 2024-10-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  5. 2024-10-01ArsenicMCL, Averagemeasured 0.0105 MG/LPeriod ended · no return to compliance on file
  6. 2023-07-01ArsenicMCL, Averagemeasured 0.0101 MG/LPeriod ended · no return to compliance on file
  7. 2023-04-01Public Notice ×4PN Violation for NPDWR ViolationBack in compliance
  8. 2023-04-01ArsenicMCL, Averagemeasured 0.0104 MG/LPeriod ended · no return to compliance on file
  9. 2023-01-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  10. 2023-01-01ArsenicMCL, Averagemeasured 0.0104 MG/LPeriod ended · no return to compliance on file
  11. 2022-10-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  12. 2022-10-01ArsenicMCL, Averagemeasured 0.0103 MG/LPeriod ended · no return to compliance on file
  13. 2022-07-01ArsenicMCL, Averagemeasured 0.0107 MG/LPeriod ended · no return to compliance on file
  14. 2022-01-01Revised Total Coliform RuleRPTBack in compliance
  15. 2021-10-01ArsenicMCL, Averagemeasured 0.0102 MG/LPeriod ended · no return to compliance on file
  16. 2021-04-01ArsenicMCL, Averagemeasured 0.0102 MG/LPeriod ended · no return to compliance on file
  17. 2021-01-01ArsenicMCL, Averagemeasured 0.0101 MG/LPeriod ended · no return to compliance on file
  18. 2020-10-01ArsenicMCL, Averagemeasured 0.0102 MG/LPeriod ended · no return to compliance on file
  19. 2020-01-01ArsenicMCL, Averagemeasured 0.0101 MG/LBack in compliance
  20. 2019-10-01ArsenicMCL, Averagemeasured 0.0102 MG/LBack in compliance
  21. 2019-07-01ArsenicMCL, Averagemeasured 0.0102 MG/LBack in compliance
  22. 2019-04-01ArsenicMCL, Averagemeasured 0.0102 MG/LBack in compliance
  23. 2017-01-01Ethylene DibromideMonitoring, RegularBack in compliance
  24. 2017-01-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularBack in compliance
  25. 2017-01-01CarbofuranMonitoring, RegularBack in compliance
Show the other 5 entries
  1. 2017-01-01OxamylMonitoring, RegularBack in compliance
  2. 2017-01-01GlyphosateMonitoring, RegularBack in compliance
  3. 2017-01-01EndothallMonitoring, RegularBack in compliance
  4. 2017-01-01DiquatMonitoring, RegularBack in compliance
  5. 2010-09-01E. ColiMonitoring, Source Water (GWR)Back in compliance

System details

Population served7,260
Service connections399
Water sourceGroundwater
System typeCommunity Water System
OwnerNative American
StatusActive
CityFountain Hills
EPA ZIP on file85269-7779

Areas served

    Reading this record

    Fort Mcdowell Community is a community water system that draws from groundwater and serves about 7,260 people in Fountain Hills, 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.