Non-Transient Non-Community · PWSID CA2000920

San Joaquin Wine Company

Serves 90 peopleGroundwaterOwner: PrivateMadera, California
Nothing open right now.

On record since 2010: 66 violations. 6 over the limit · 58 missed or late tests · 2 notices or reports. Most recent began 2024-10-01.

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

6Over the limit
0Treatment lapse
58Missed or late test
2Notice or report

More violations on record than 98% 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

20052010 · Notice or report: 120102011 · Notice or report: 12015 · Missed or late test: 192015 · Missed or late test: 192015 · Missed or late test: 192015 · Missed or late test: 192015 · Missed or late test: 1920152016 · Missed or late test: 12017 · Missed or late test: 120202021 · Over the limit: 12022 · Over the limit: 32022 · Missed or late test: 342022 · Missed or late test: 342022 · Missed or late test: 342022 · Missed or late test: 342022 · Missed or late test: 342022 · Missed or late test: 342022 · Missed or late test: 342022 · Missed or late test: 342022 · Missed or late test: 342023 · Over the limit: 22023 · Missed or late test: 22024 · Missed or late test: 12025
One square ≈ 4 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
9% over the limit · 688% missed or late test · 583% notice or report · 2

Across California, 52% of violations are missed or late tests and 29% are water over a limit.

How far over the limit

at the limit2×5×10×100×+1, 2-Dibromo-3-Chloropropane2023-04-01 · 1, 2-Dibromo-3-Chloropropane: measured 0.8130 UG/L vs limit 0.2000 UG/L (4.1×)2023-01-01 · 1, 2-Dibromo-3-Chloropropane: measured 0.3115 UG/L vs limit 0.2000 UG/L (1.6×)2022-10-01 · 1, 2-Dibromo-3-Chloropropane: measured 0.000316 MG/L vs limit 0.000200 MG/L (1.6×)2022-07-01 · 1, 2-Dibromo-3-Chloropropane: measured 0.4900 UG/L vs limit 0.2000 UG/L (2.4×)2022-04-01 · 1, 2-Dibromo-3-Chloropropane: measured 0.4600 UG/L vs limit 0.2000 UG/L (2.3×)2021-04-01 · 1, 2-Dibromo-3-Chloropropane: measured 0.000229 MG/L vs limit 0.000200 MG/L (1.1×)
Each dot is one over-the-limit violation: the measured value divided by the limit it broke, on a log scale. Most legal limits for chemicals are running averages set for a lifetime of drinking, so “just over” and “ten times over” are very different news. Hover a dot for the numbers.

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 3 results on file · action level 15 ppb

2.8 ppb
0 ppb
0 ppb

Every violation on record

  1. 2024-10-01Chromium, HexMonitoring, RegularBack in compliance
  2. 2023-10-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularBack in compliance
  3. 2023-10-011,2,3-TrichloropropaneMonitoring, RegularBack in compliance
  4. 2023-04-011, 2-Dibromo-3-ChloropropaneMCL, Averagemeasured 0.8130 UG/L · limit 0.2000 UG/LPeriod ended · no return to compliance on file
  5. 2023-01-011, 2-Dibromo-3-ChloropropaneMCL, Averagemeasured 0.3115 UG/L · limit 0.2000 UG/LPeriod ended · no return to compliance on file
  6. 2022-10-011, 2-Dibromo-3-ChloropropaneMCL, Averagemeasured 0.000316 MG/L · limit 0.000200 MG/LPeriod ended · no return to compliance on file
  7. 2022-07-011, 2-Dibromo-3-ChloropropaneMCL, Averagemeasured 0.4900 UG/L · limit 0.2000 UG/LPeriod ended · no return to compliance on file
  8. 2022-04-011, 2-Dibromo-3-ChloropropaneMCL, Averagemeasured 0.4600 UG/L · limit 0.2000 UG/LPeriod ended · no return to compliance on file
  9. 2022-01-01Thiobencarb (Bolero)Monitoring, RegularPeriod ended · no return to compliance on file
  10. 2022-01-01MolinateMonitoring, RegularPeriod ended · no return to compliance on file
  11. 2022-01-01BentazonMonitoring, RegularPeriod ended · no return to compliance on file
  12. 2022-01-01ChlordaneMonitoring, RegularPeriod ended · no return to compliance on file
  13. 2022-01-01Ethylene DibromideMonitoring, RegularPeriod ended · no return to compliance on file
  14. 2022-01-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
  15. 2022-01-01Total Polychlorinated Biphenyls (PCB)Monitoring, RegularPeriod ended · no return to compliance on file
  16. 2022-01-01PentachlorophenolMonitoring, RegularPeriod ended · no return to compliance on file
  17. 2022-01-01Benzo(a)pyreneMonitoring, RegularPeriod ended · no return to compliance on file
  18. 2022-01-01HexachlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  19. 2022-01-012, 4, 5-TpMonitoring, RegularPeriod ended · no return to compliance on file
  20. 2022-01-012, 4-DMonitoring, RegularPeriod ended · no return to compliance on file
  21. 2022-01-01Heptachlor epoxideMonitoring, RegularPeriod ended · no return to compliance on file
  22. 2022-01-01HeptachlorMonitoring, RegularPeriod ended · no return to compliance on file
  23. 2022-01-012, 3, 7, 8-TcddMonitoring, RegularPeriod ended · no return to compliance on file
  24. 2022-01-01LassoMonitoring, RegularPeriod ended · no return to compliance on file
  25. 2022-01-01AtrazineMonitoring, RegularPeriod ended · no return to compliance on file
Show the other 41 entries
  1. 2022-01-01CarbofuranMonitoring, RegularPeriod ended · no return to compliance on file
  2. 2022-01-01HexachlorocyclopentadieneMonitoring, RegularPeriod ended · no return to compliance on file
  3. 2022-01-01DinosebMonitoring, RegularPeriod ended · no return to compliance on file
  4. 2022-01-01PicloramMonitoring, RegularPeriod ended · no return to compliance on file
  5. 2022-01-01Di(2-ethylhexyl) phthalateMonitoring, RegularPeriod ended · no return to compliance on file
  6. 2022-01-01SimazineMonitoring, RegularPeriod ended · no return to compliance on file
  7. 2022-01-01OxamylMonitoring, RegularPeriod ended · no return to compliance on file
  8. 2022-01-01Di(2-ethylhexyl) adipateMonitoring, RegularPeriod ended · no return to compliance on file
  9. 2022-01-01GlyphosateMonitoring, RegularPeriod ended · no return to compliance on file
  10. 2022-01-01EndothallMonitoring, RegularPeriod ended · no return to compliance on file
  11. 2022-01-01DiquatMonitoring, RegularPeriod ended · no return to compliance on file
  12. 2022-01-01DalaponMonitoring, RegularPeriod ended · no return to compliance on file
  13. 2022-01-01ToxapheneMonitoring, RegularPeriod ended · no return to compliance on file
  14. 2022-01-01MethoxychlorMonitoring, RegularPeriod ended · no return to compliance on file
  15. 2022-01-01Bhc-GammaMonitoring, RegularPeriod ended · no return to compliance on file
  16. 2022-01-01EndrinMonitoring, RegularPeriod ended · no return to compliance on file
  17. 2022-01-01NitriteMonitoring, RegularBack in compliance
  18. 2021-04-011, 2-Dibromo-3-ChloropropaneMCL, Averagemeasured 0.000229 MG/L · limit 0.000200 MG/LPeriod ended · no return to compliance on file
  19. 2017-01-01Nitrate-NitriteMonitoring, RegularBack in compliance
  20. 2016-01-01Gross Alpha Particle ActivityMonitoring, RegularPeriod ended · no return to compliance on file
  21. 2015-01-01AsbestosMonitoring, RegularBack in compliance
  22. 2015-01-01Ethylene DibromideMonitoring, RegularBack in compliance
  23. 2015-01-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularBack in compliance
  24. 2015-01-01SimazineMonitoring, RegularBack in compliance
  25. 2015-01-01AtrazineMonitoring, RegularBack in compliance
  26. 2015-01-01LassoMonitoring, RegularBack in compliance
  27. 2015-01-01Thallium, TotalMonitoring, RegularBack in compliance
  28. 2015-01-01SeleniumMonitoring, RegularBack in compliance
  29. 2015-01-01MercuryMonitoring, RegularBack in compliance
  30. 2015-01-01FluorideMonitoring, RegularBack in compliance
  31. 2015-01-01ChromiumMonitoring, RegularBack in compliance
  32. 2015-01-01CadmiumMonitoring, RegularBack in compliance
  33. 2015-01-01Beryllium, TotalMonitoring, RegularBack in compliance
  34. 2015-01-01BariumMonitoring, RegularBack in compliance
  35. 2015-01-01ArsenicMonitoring, RegularBack in compliance
  36. 2015-01-01Antimony, TotalMonitoring, RegularBack in compliance
  37. 2015-01-01AluminumMonitoring, RegularPeriod ended · no return to compliance on file
  38. 2015-01-01PerchlorateMonitoring, RegularPeriod ended · no return to compliance on file
  39. 2015-01-01NitriteMonitoring, RegularBack in compliance
  40. 2011-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  41. 2010-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served90
Service connections5
Water sourceGroundwater
System typeNon-Transient Non-Community
OwnerPrivate
StatusActive
CityMadera
EPA ZIP on file93637

Areas served

  • Madera County

Reading this record

San Joaquin Wine Company is a non-transient non-community that draws from groundwater and serves about 90 people in Madera, 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.