Community Water System · PWSID 090600121

Big Sandy Rancheria

Serves 408 peopleGroundwaterOwner: Native AmericanAuberry, California
Nothing open that measures the water, but 3 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 1996: 103 violations. 5 over the limit · 89 missed or late tests · 9 notices or reports. Most recent began 2025-01-01.

For this year's test results, ask the utility for its annual Consumer Confidence Report. Every community system must publish one.

5Over the limit
0Treatment lapse
89Missed or late test
9Notice or report3 open

More violations on record than 99% of active water systems in California. 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: 21999 · Missed or late test: 12000 · Notice or report: 120002001 · Notice or report: 12002 · Notice or report: 12004 · Notice or report: 12005 · Notice or report: 120052006 · Notice or report: 120102013 · Over the limit: 12013 · Missed or late test: 12014 · Missed or late test: 120152016 · Missed or late test: 22017 · Missed or late test: 712017 · Missed or late test: 712017 · Missed or late test: 712017 · Missed or late test: 712017 · Missed or late test: 712017 · Missed or late test: 712017 · Missed or late test: 712017 · Missed or late test: 712017 · Missed or late test: 712017 · Missed or late test: 712017 · Missed or late test: 712017 · Missed or late test: 712018 · Missed or late test: 120202021 · Missed or late test: 22022 · Missed or late test: 12023 · Missed or late test: 62024 · Over the limit: 32024 · Missed or late test: 12024 · Notice or report: 22025 · Over the limit: 12025 · Notice or report: 12025
One square ≈ 6 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
5% over the limit · 586% missed or late test · 899% notice or report · 9

Across California, 52% of violations are missed or late tests and 29% 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

10.5 ppb
below 5 ppb
below 5 ppb
below 5 ppb

Open now (3)

  1. 2025-01-01Public NoticePN Violation for NPDWR ViolationOpen
  2. 2024-10-01Public NoticePN Violation for NPDWR ViolationOpen
  3. 2024-04-01Public NoticePN Violation for NPDWR ViolationOpen

Every violation on record

  1. 2025-01-01Public NoticePN Violation for NPDWR ViolationOpen
  2. 2025-01-01Combined UraniumMCL, Averagemeasured 0.1353 MG/LPeriod ended · no return to compliance on file
  3. 2024-10-01Public NoticePN Violation for NPDWR ViolationOpen
  4. 2024-10-01Combined UraniumMCL, Averagemeasured 0.0928 MG/LPeriod ended · no return to compliance on file
  5. 2024-07-01Combined UraniumMCL, Averagemeasured 0.1353 MG/LBack in compliance
  6. 2024-04-01Public NoticePN Violation for NPDWR ViolationOpen
  7. 2024-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  8. 2024-04-01Combined UraniumMCL, Averagemeasured 0.1353 MG/LPeriod ended · no return to compliance on file
  9. 2023-10-01Combined UraniumMonitoring, RegularBack in compliance
  10. 2023-03-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  11. 2023-02-01Revised Total Coliform RuleMONBack in compliance
  12. 2023-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  13. 2023-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  14. 2023-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  15. 2022-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  16. 2021-01-01Trihalomethanes (TTHM)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
  17. 2021-01-01Total Haloacetic Acids (HAA5)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
  18. 2018-01-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  19. 2017-10-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  20. 2017-10-01Gross Alpha, Excl. Radon and UMonitoring, RegularBack in compliance
  21. 2017-10-01StyreneMonitoring, RegularBack in compliance
  22. 2017-10-01EthylbenzeneMonitoring, RegularBack in compliance
  23. 2017-10-01TolueneMonitoring, RegularBack in compliance
  24. 2017-10-01BenzeneMonitoring, RegularBack in compliance
  25. 2017-10-01ChlorobenzeneMonitoring, RegularBack in compliance
Show the other 78 entries
  1. 2017-10-01TetrachloroethyleneMonitoring, RegularBack in compliance
  2. 2017-10-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  3. 2017-10-01TrichloroethyleneMonitoring, RegularBack in compliance
  4. 2017-10-011,2-DichloropropaneMonitoring, RegularBack in compliance
  5. 2017-10-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  6. 2017-10-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  7. 2017-10-011,2-DichloroethaneMonitoring, RegularBack in compliance
  8. 2017-10-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  9. 2017-10-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  10. 2017-10-01Vinyl chlorideMonitoring, RegularBack in compliance
  11. 2017-10-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  12. 2017-10-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  13. 2017-10-01DichloromethaneMonitoring, RegularBack in compliance
  14. 2017-10-01ChlordaneMonitoring, RegularBack in compliance
  15. 2017-10-01Xylenes, TotalMonitoring, RegularBack in compliance
  16. 2017-10-01Ethylene DibromideMonitoring, RegularBack in compliance
  17. 2017-10-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularBack in compliance
  18. 2017-10-01Total Polychlorinated Biphenyls (PCB)Monitoring, RegularBack in compliance
  19. 2017-10-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  20. 2017-10-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  21. 2017-10-01PentachlorophenolMonitoring, RegularBack in compliance
  22. 2017-10-01Benzo(a)pyreneMonitoring, RegularBack in compliance
  23. 2017-10-01HexachlorobenzeneMonitoring, RegularBack in compliance
  24. 2017-10-012, 4, 5-TpMonitoring, RegularBack in compliance
  25. 2017-10-012, 4-DMonitoring, RegularBack in compliance
  26. 2017-10-01Heptachlor epoxideMonitoring, RegularBack in compliance
  27. 2017-10-01HeptachlorMonitoring, RegularBack in compliance
  28. 2017-10-012, 3, 7, 8-TcddMonitoring, RegularBack in compliance
  29. 2017-10-01LassoMonitoring, RegularBack in compliance
  30. 2017-10-01AtrazineMonitoring, RegularBack in compliance
  31. 2017-10-01CarbofuranMonitoring, RegularBack in compliance
  32. 2017-10-01HexachlorocyclopentadieneMonitoring, RegularBack in compliance
  33. 2017-10-01DinosebMonitoring, RegularBack in compliance
  34. 2017-10-01PicloramMonitoring, RegularBack in compliance
  35. 2017-10-01Di(2-ethylhexyl) phthalateMonitoring, RegularBack in compliance
  36. 2017-10-01SimazineMonitoring, RegularBack in compliance
  37. 2017-10-01OxamylMonitoring, RegularBack in compliance
  38. 2017-10-01Di(2-ethylhexyl) adipateMonitoring, RegularBack in compliance
  39. 2017-10-01GlyphosateMonitoring, RegularBack in compliance
  40. 2017-10-01EndothallMonitoring, RegularBack in compliance
  41. 2017-10-01DiquatMonitoring, RegularBack in compliance
  42. 2017-10-01DalaponMonitoring, RegularBack in compliance
  43. 2017-10-01ToxapheneMonitoring, RegularBack in compliance
  44. 2017-10-01MethoxychlorMonitoring, RegularBack in compliance
  45. 2017-10-01Bhc-GammaMonitoring, RegularBack in compliance
  46. 2017-10-01EndrinMonitoring, RegularBack in compliance
  47. 2017-10-01Thallium, TotalMonitoring, RegularBack in compliance
  48. 2017-10-01Beryllium, TotalMonitoring, RegularBack in compliance
  49. 2017-10-01Antimony, TotalMonitoring, RegularBack in compliance
  50. 2017-10-01SeleniumMonitoring, RegularBack in compliance
  51. 2017-10-01NitriteMonitoring, RegularBack in compliance
  52. 2017-10-01NitrateMonitoring, RegularBack in compliance
  53. 2017-10-01MercuryMonitoring, RegularBack in compliance
  54. 2017-10-01FluorideMonitoring, RegularBack in compliance
  55. 2017-10-01CyanideMonitoring, RegularBack in compliance
  56. 2017-10-01ChromiumMonitoring, RegularBack in compliance
  57. 2017-10-01CadmiumMonitoring, RegularBack in compliance
  58. 2017-10-01BariumMonitoring, RegularBack in compliance
  59. 2017-10-01ArsenicMonitoring, RegularBack in compliance
  60. 2017-07-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  61. 2017-07-01Gross Alpha, Excl. Radon and UMonitoring, RegularBack in compliance
  62. 2017-07-01LassoMonitoring, RegularBack in compliance
  63. 2017-07-01NitriteMonitoring, RegularBack in compliance
  64. 2017-07-01MercuryMonitoring, RegularBack in compliance
  65. 2016-10-01Combined UraniumMonitoring, RegularBack in compliance
  66. 2016-06-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  67. 2014-01-01Coliform (TCR)Monitoring, Routine Minor (TCR)Back in compliance
  68. 2013-10-01Coliform (TCR)Monitoring, Routine Minor (TCR)Back in compliance
  69. 2013-07-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  70. 2006-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  71. 2005-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  72. 2004-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  73. 2002-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  74. 2001-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  75. 2000-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  76. 1999-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  77. 1996-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance
  78. 1996-01-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance

System details

Population served408
Service connections62
Water sourceGroundwater
System typeCommunity Water System
OwnerNative American
StatusActive
CityAuberry
EPA ZIP on file93602

Areas served

  • Big Sandy Rancheria

Reading this record

Big Sandy Rancheria is a community water system that draws from groundwater and serves about 408 people in Auberry, California. 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.