Community Water System · PWSID 090400114

Scua Upper Seven Mile

Serves 8,478 peopleGroundwaterOwner: Native AmericanSan Carlos, Arizona
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 1996: 191 violations. 20 over the limit · 10 treatment lapses · 111 missed or late tests · 50 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.

20Over the limit
10Treatment lapse
111Missed or late test
50Notice or report1 open

More violations on record than 98% 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

1996 · Missed or late test: 220002001 · Notice or report: 12002 · Notice or report: 12004 · Notice or report: 120052006 · Notice or report: 12008 · Missed or late test: 12008 · Notice or report: 12009 · Notice or report: 12010 · Missed or late test: 12010 · Notice or report: 120102012 · Missed or late test: 22012 · Notice or report: 12013 · Over the limit: 42013 · Missed or late test: 32013 · Notice or report: 82013 · Notice or report: 82014 · Over the limit: 42014 · Notice or report: 32015 · Over the limit: 32015 · Notice or report: 520152016 · Over the limit: 32016 · Missed or late test: 42016 · Notice or report: 12017 · Treatment lapse: 12017 · Missed or late test: 12017 · Notice or report: 12018 · Over the limit: 22018 · Treatment lapse: 22018 · Missed or late test: 82018 · Missed or late test: 82018 · Notice or report: 82018 · Notice or report: 82019 · Missed or late test: 22019 · Notice or report: 22020 · Missed or late test: 320202021 · Over the limit: 12021 · Missed or late test: 52021 · Notice or report: 12022 · Missed or late test: 52022 · Notice or report: 22023 · Over the limit: 32023 · Treatment lapse: 72023 · Treatment lapse: 72023 · Missed or late test: 102023 · Missed or late test: 102023 · Notice or report: 82023 · Notice or report: 82024 · Missed or late test: 632024 · Missed or late test: 632024 · Missed or late test: 632024 · Missed or late test: 632024 · Missed or late test: 632024 · Missed or late test: 632024 · Missed or late test: 632024 · Missed or late test: 632024 · Missed or late test: 632024 · Missed or late test: 632024 · Missed or late test: 632024 · Notice or report: 32025 · Missed or late test: 12025
One square ≈ 6 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
10% over the limit · 205% treatment lapse · 1058% missed or late test · 11126% notice or report · 50

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
1 ppb

Open now (1)

  1. 2024-11-16Lead service line inventoryRPTOpen

Every violation on record

  1. 2025-07-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  2. 2024-11-16Lead service line inventoryRPTOpen
  3. 2024-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  4. 2024-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  5. 2024-04-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  6. 2024-04-01Combined UraniumMonitoring, RegularBack in compliance
  7. 2024-04-01Gross Alpha, Excl. Radon and UMonitoring, RegularBack in compliance
  8. 2024-03-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  9. 2024-03-01Revised Total Coliform RuleMONBack in compliance
  10. 2024-01-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  11. 2024-01-01Revised Total Coliform RuleMONBack in compliance
  12. 2024-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  13. 2024-01-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  14. 2024-01-01Combined UraniumMonitoring, RegularBack in compliance
  15. 2024-01-01Gross Alpha, Excl. Radon and UMonitoring, RegularBack in compliance
  16. 2024-01-01StyreneMonitoring, RegularBack in compliance
  17. 2024-01-01EthylbenzeneMonitoring, RegularBack in compliance
  18. 2024-01-01TolueneMonitoring, RegularBack in compliance
  19. 2024-01-01BenzeneMonitoring, RegularBack in compliance
  20. 2024-01-01ChlorobenzeneMonitoring, RegularBack in compliance
  21. 2024-01-01TetrachloroethyleneMonitoring, RegularBack in compliance
  22. 2024-01-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  23. 2024-01-01TrichloroethyleneMonitoring, RegularBack in compliance
  24. 2024-01-011,2-DichloropropaneMonitoring, RegularBack in compliance
  25. 2024-01-01Carbon tetrachlorideMonitoring, RegularBack in compliance
Show the other 154 entries
  1. 2024-01-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  2. 2024-01-011,2-DichloroethaneMonitoring, RegularBack in compliance
  3. 2024-01-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  4. 2024-01-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  5. 2024-01-01Vinyl chlorideMonitoring, RegularBack in compliance
  6. 2024-01-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  7. 2024-01-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  8. 2024-01-01DichloromethaneMonitoring, RegularBack in compliance
  9. 2024-01-01ChlordaneMonitoring, RegularBack in compliance
  10. 2024-01-01Xylenes, TotalMonitoring, RegularBack in compliance
  11. 2024-01-01Ethylene DibromideMonitoring, RegularBack in compliance
  12. 2024-01-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularBack in compliance
  13. 2024-01-01Total Polychlorinated Biphenyls (PCB)Monitoring, RegularBack in compliance
  14. 2024-01-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  15. 2024-01-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  16. 2024-01-01PentachlorophenolMonitoring, RegularBack in compliance
  17. 2024-01-01Benzo(a)pyreneMonitoring, RegularBack in compliance
  18. 2024-01-01HexachlorobenzeneMonitoring, RegularBack in compliance
  19. 2024-01-012, 4, 5-TpMonitoring, RegularBack in compliance
  20. 2024-01-012, 4-DMonitoring, RegularBack in compliance
  21. 2024-01-01Heptachlor epoxideMonitoring, RegularBack in compliance
  22. 2024-01-01HeptachlorMonitoring, RegularBack in compliance
  23. 2024-01-012, 3, 7, 8-TcddMonitoring, RegularBack in compliance
  24. 2024-01-01LassoMonitoring, RegularBack in compliance
  25. 2024-01-01AtrazineMonitoring, RegularBack in compliance
  26. 2024-01-01CarbofuranMonitoring, RegularBack in compliance
  27. 2024-01-01HexachlorocyclopentadieneMonitoring, RegularBack in compliance
  28. 2024-01-01DinosebMonitoring, RegularBack in compliance
  29. 2024-01-01PicloramMonitoring, RegularBack in compliance
  30. 2024-01-01Di(2-ethylhexyl) phthalateMonitoring, RegularBack in compliance
  31. 2024-01-01SimazineMonitoring, RegularBack in compliance
  32. 2024-01-01OxamylMonitoring, RegularBack in compliance
  33. 2024-01-01Di(2-ethylhexyl) adipateMonitoring, RegularBack in compliance
  34. 2024-01-01GlyphosateMonitoring, RegularBack in compliance
  35. 2024-01-01EndothallMonitoring, RegularBack in compliance
  36. 2024-01-01DiquatMonitoring, RegularBack in compliance
  37. 2024-01-01DalaponMonitoring, RegularBack in compliance
  38. 2024-01-01ToxapheneMonitoring, RegularBack in compliance
  39. 2024-01-01MethoxychlorMonitoring, RegularBack in compliance
  40. 2024-01-01Bhc-GammaMonitoring, RegularBack in compliance
  41. 2024-01-01EndrinMonitoring, RegularBack in compliance
  42. 2024-01-01ArsenicMonitoring, RegularBack in compliance
  43. 2023-10-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  44. 2023-07-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  45. 2023-07-01Revised Total Coliform RuleMCLBack in compliance
  46. 2023-06-01Revised Total Coliform RuleMCLPeriod ended · no return to compliance on file
  47. 2023-05-13Revised Total Coliform RuleTTBack in compliance
  48. 2023-05-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  49. 2023-05-01Revised Total Coliform RuleMCLPeriod ended · no return to compliance on file
  50. 2023-04-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  51. 2023-04-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  52. 2023-04-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  53. 2023-03-04Public Notice ×6PN Violation for NPDWR ViolationBack in compliance
  54. 2023-03-04Groundwater Rule ×6Failure To Address DeficiencyBack in compliance
  55. 2023-02-01Revised Total Coliform RuleRPTBack in compliance
  56. 2023-01-01Trihalomethanes (TTHM)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
  57. 2023-01-01Total Haloacetic Acids (HAA5)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
  58. 2023-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  59. 2023-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  60. 2023-01-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  61. 2022-12-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  62. 2022-10-01Revised Total Coliform RuleMONBack in compliance
  63. 2022-08-01Revised Total Coliform RuleRPTBack in compliance
  64. 2022-07-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  65. 2022-07-01ArsenicMonitoring, RegularBack in compliance
  66. 2022-05-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  67. 2022-04-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  68. 2021-12-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  69. 2021-11-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  70. 2021-10-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  71. 2021-09-01Revised Total Coliform RuleMONBack in compliance
  72. 2021-07-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  73. 2021-07-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  74. 2021-07-01Revised Total Coliform RuleMCLBack in compliance
  75. 2020-10-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  76. 2020-08-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  77. 2020-01-01SodiumMonitoring, RegularPeriod ended · no return to compliance on file
  78. 2019-08-01Revised Total Coliform RuleRPTBack in compliance
  79. 2019-01-01Revised Total Coliform RuleRPTBack in compliance
  80. 2019-01-01NitrateMonitoring, RegularBack in compliance
  81. 2019-01-01ArsenicMonitoring, RegularBack in compliance
  82. 2018-12-01Revised Total Coliform RuleRPTBack in compliance
  83. 2018-11-01Revised Total Coliform RuleMONBack in compliance
  84. 2018-10-01Revised Total Coliform RuleRPTBack in compliance
  85. 2018-10-01ArsenicMonitoring, RegularBack in compliance
  86. 2018-09-30Public NoticePN Violation for NPDWR ViolationBack in compliance
  87. 2018-09-30Revised Total Coliform RuleTTBack in compliance
  88. 2018-09-28Revised Total Coliform RuleRPTBack in compliance
  89. 2018-09-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  90. 2018-09-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  91. 2018-09-01Revised Total Coliform RuleMCLBack in compliance
  92. 2018-08-30Public NoticePN Violation for NPDWR ViolationBack in compliance
  93. 2018-08-30Revised Total Coliform RuleTTBack in compliance
  94. 2018-08-03Public NoticePN Violation for NPDWR ViolationBack in compliance
  95. 2018-08-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  96. 2018-07-31Revised Total Coliform RuleRPTBack in compliance
  97. 2018-07-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  98. 2018-07-01Revised Total Coliform RuleMCLBack in compliance
  99. 2018-07-01ArsenicMonitoring, RegularBack in compliance
  100. 2018-04-01ArsenicMonitoring, RegularBack in compliance
  101. 2018-01-01NitrateMonitoring, RegularBack in compliance
  102. 2017-10-01ArsenicMonitoring, RegularBack in compliance
  103. 2017-08-01Revised Total Coliform RuleTTBack in compliance
  104. 2017-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  105. 2016-04-01ArsenicMCL, Averagemeasured 0.007300 MG/LBack in compliance
  106. 2016-03-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  107. 2016-03-01Coliform (TCR)Monitoring, Repeat Major (TCR)Back in compliance
  108. 2016-03-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  109. 2016-01-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  110. 2016-01-01Trihalomethanes (TTHM)Monitoring, Routine (IDSE)Back in compliance
  111. 2016-01-01Total Haloacetic Acids (HAA5)Monitoring, Routine (IDSE)Back in compliance
  112. 2016-01-01ArsenicMCL, Averagemeasured 0.0176 MG/LBack in compliance
  113. 2015-08-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  114. 2015-07-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  115. 2015-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  116. 2015-07-01ArsenicMCL, Averagemeasured 0.0102 MG/LBack in compliance
  117. 2015-04-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  118. 2015-04-01ArsenicMCL, Averagemeasured 0.0102 MG/LBack in compliance
  119. 2015-01-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  120. 2015-01-01ArsenicMCL, Averagemeasured 0.0102 MG/LBack in compliance
  121. 2014-12-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  122. 2014-10-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  123. 2014-10-01ArsenicMCL, Averagemeasured 0.0102 MG/LBack in compliance
  124. 2014-07-01ArsenicMCL, Averagemeasured 0.0137 MG/LBack in compliance
  125. 2014-04-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  126. 2014-04-01ArsenicMCL, Averagemeasured 0.0223 MG/LBack in compliance
  127. 2014-01-01ArsenicMCL, Averagemeasured 0.0223 MG/LBack in compliance
  128. 2013-10-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  129. 2013-10-01ArsenicMCL, Averagemeasured 0.0202 MG/LBack in compliance
  130. 2013-08-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  131. 2013-07-01Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  132. 2013-07-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  133. 2013-07-01ArsenicMCL, Averagemeasured 0.0197 MG/LBack in compliance
  134. 2013-05-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  135. 2013-04-01Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  136. 2013-04-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  137. 2013-04-01ArsenicMCL, Averagemeasured 0.0197 MG/LBack in compliance
  138. 2013-03-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  139. 2013-01-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  140. 2013-01-01ArsenicMCL, Averagemeasured 0.0223 MG/LBack in compliance
  141. 2012-10-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  142. 2012-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  143. 2012-07-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  144. 2010-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  145. 2010-06-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  146. 2009-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  147. 2008-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  148. 2008-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  149. 2006-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  150. 2004-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  151. 2002-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  152. 2001-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  153. 1996-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance
  154. 1996-01-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance

System details

Population served8,478
Service connections1,776
Water sourceGroundwater
System typeCommunity Water System
OwnerNative American
StatusActive
CitySan Carlos
EPA ZIP on file85550

Areas served

    Reading this record

    Scua Upper Seven Mile is a community water system that draws from groundwater and serves about 8,478 people in San Carlos, 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.