Community Water System · PWSID 090400057

Second Mesa Day School - Bia

Serves 366 peopleGroundwaterOwner: FederalSecond Mesa, ArizonaServes a school or daycare
Nothing open that measures the water, but 1 open testing or paperwork violation.

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 2009: 70 violations. 11 over the limit · 51 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.

11Over the limit
0Treatment lapse
51Missed or late test
8Notice or report1 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

20052009 · Missed or late test: 120102011 · Missed or late test: 372011 · Missed or late test: 372011 · Missed or late test: 372011 · Missed or late test: 372011 · Missed or late test: 372011 · Missed or late test: 372011 · Missed or late test: 372011 · Missed or late test: 372011 · Missed or late test: 372011 · Missed or late test: 372013 · Notice or report: 22015 · Missed or late test: 220152016 · Over the limit: 12016 · Missed or late test: 32017 · Over the limit: 22018 · Missed or late test: 12019 · Over the limit: 42020 · Missed or late test: 120202021 · Missed or late test: 22022 · Notice or report: 12024 · Over the limit: 32024 · Missed or late test: 32024 · Notice or report: 42025 · Over the limit: 12025 · Missed or late test: 12025 · Notice or report: 12025
One square ≈ 4 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
16% over the limit · 1173% missed or late test · 5111% 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

below 5 ppb
below 5 ppb
below 5 ppb
below 1 ppb

Open now (1)

  1. 2022-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen

Every violation on record

  1. 2025-07-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  2. 2025-01-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  3. 2025-01-01ArsenicMCL, Averagemeasured 0.0102 MG/LPeriod ended · no return to compliance on file
  4. 2024-10-01ArsenicMCL, Averagemeasured 0.0112 MG/LPeriod ended · no return to compliance on file
  5. 2024-07-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  6. 2024-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  7. 2024-07-01ArsenicMCL, Averagemeasured 0.0109 MG/LBack in compliance
  8. 2024-06-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  9. 2024-06-01Revised Total Coliform RuleMONBack in compliance
  10. 2024-04-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  11. 2024-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  12. 2024-04-01ArsenicMCL, Averagemeasured 0.0104 MG/LBack in compliance
  13. 2024-01-01NitrateMonitoring, RegularPeriod ended · no return to compliance on file
  14. 2022-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen
  15. 2021-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  16. 2021-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  17. 2020-01-01ArsenicMonitoring, RegularBack in compliance
  18. 2019-10-01ArsenicMCL, Averagemeasured 0.0111 MG/LBack in compliance
  19. 2019-07-01ArsenicMCL, Averagemeasured 0.0117 MG/LBack in compliance
  20. 2019-04-01ArsenicMCL, Averagemeasured 0.0130 MG/LBack in compliance
  21. 2019-01-01ArsenicMCL, Averagemeasured 0.0112 MG/LBack in compliance
  22. 2018-07-01ArsenicMonitoring, RegularBack in compliance
  23. 2017-04-01ArsenicMCL, Averagemeasured 0.0136 MG/LBack in compliance
  24. 2017-01-01ArsenicMCL, Averagemeasured 0.0182 MG/LBack in compliance
  25. 2016-10-01ArsenicMCL, Averagemeasured 0.0134 MG/LBack in compliance
Show the other 45 entries
  1. 2016-08-01Revised Total Coliform RuleMONBack in compliance
  2. 2016-06-01Revised Total Coliform RuleMONBack in compliance
  3. 2016-04-01ArsenicMonitoring, RegularBack in compliance
  4. 2015-01-01Trihalomethanes (TTHM)Monitoring, Routine (IDSE)Back in compliance
  5. 2015-01-01Total Haloacetic Acids (HAA5)Monitoring, Routine (IDSE)Back in compliance
  6. 2013-07-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  7. 2013-04-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  8. 2011-01-01Ethylene DibromideMonitoring, RegularBack in compliance
  9. 2011-01-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularBack in compliance
  10. 2011-01-01PentachlorophenolMonitoring, RegularBack in compliance
  11. 2011-01-01Benzo(a)pyreneMonitoring, RegularBack in compliance
  12. 2011-01-01HexachlorobenzeneMonitoring, RegularBack in compliance
  13. 2011-01-012, 4, 5-TpMonitoring, RegularBack in compliance
  14. 2011-01-012, 4-DMonitoring, RegularBack in compliance
  15. 2011-01-01Heptachlor epoxideMonitoring, RegularBack in compliance
  16. 2011-01-01HeptachlorMonitoring, RegularBack in compliance
  17. 2011-01-012, 3, 7, 8-TcddMonitoring, RegularBack in compliance
  18. 2011-01-01LassoMonitoring, RegularBack in compliance
  19. 2011-01-01AtrazineMonitoring, RegularBack in compliance
  20. 2011-01-01CarbofuranMonitoring, RegularBack in compliance
  21. 2011-01-01HexachlorocyclopentadieneMonitoring, RegularBack in compliance
  22. 2011-01-01DinosebMonitoring, RegularBack in compliance
  23. 2011-01-01PicloramMonitoring, RegularBack in compliance
  24. 2011-01-01Di(2-ethylhexyl) phthalateMonitoring, RegularBack in compliance
  25. 2011-01-01SimazineMonitoring, RegularBack in compliance
  26. 2011-01-01OxamylMonitoring, RegularBack in compliance
  27. 2011-01-01Di(2-ethylhexyl) adipateMonitoring, RegularBack in compliance
  28. 2011-01-01GlyphosateMonitoring, RegularBack in compliance
  29. 2011-01-01EndothallMonitoring, RegularBack in compliance
  30. 2011-01-01DiquatMonitoring, RegularBack in compliance
  31. 2011-01-01DalaponMonitoring, RegularBack in compliance
  32. 2011-01-01MethoxychlorMonitoring, RegularBack in compliance
  33. 2011-01-01Bhc-GammaMonitoring, RegularBack in compliance
  34. 2011-01-01EndrinMonitoring, RegularBack in compliance
  35. 2011-01-01Thallium, TotalMonitoring, RegularBack in compliance
  36. 2011-01-01Beryllium, TotalMonitoring, RegularBack in compliance
  37. 2011-01-01Antimony, TotalMonitoring, RegularBack in compliance
  38. 2011-01-01SeleniumMonitoring, RegularBack in compliance
  39. 2011-01-01MercuryMonitoring, RegularBack in compliance
  40. 2011-01-01FluorideMonitoring, RegularBack in compliance
  41. 2011-01-01CyanideMonitoring, RegularBack in compliance
  42. 2011-01-01ChromiumMonitoring, RegularBack in compliance
  43. 2011-01-01CadmiumMonitoring, RegularBack in compliance
  44. 2011-01-01BariumMonitoring, RegularBack in compliance
  45. 2009-12-01E. ColiMonitoring, Source Water (GWR)Back in compliance

System details

Population served366
Service connections17
Water sourceGroundwater
System typeCommunity Water System
OwnerFederal
StatusActive
CitySecond Mesa
EPA ZIP on file86043

Areas served

    Reading this record

    Second Mesa Day School - Bia is a community water system that draws from groundwater and serves about 366 people in Second Mesa, 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.