Community Water System · PWSID CA1510001

Arvin Community Services Dist

Serves 19,669 peopleGroundwaterOwner: Local GovernmentArvin, California
1 open treatment violation.

Open for: Lead service line inventory. EPA counts treatment-technique violations as health-based: a required protective step was not done. It is not a measurement of contamination.

On record since 1997: 128 violations. 66 over the limit · 1 treatment lapse · 60 missed or late tests · 1 notice or report. Most recent began 2024-10-17.

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

66Over the limit
1Treatment lapse1 open
60Missed or late test
1Notice or report1 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

1997 · Over the limit: 11998 · Over the limit: 21999 · Over the limit: 21999 · Missed or late test: 12000 · Over the limit: 120002001 · Missed or late test: 12002 · Over the limit: 22002 · Missed or late test: 492002 · Missed or late test: 492002 · Missed or late test: 492002 · Missed or late test: 492002 · Missed or late test: 492002 · Missed or late test: 492002 · Missed or late test: 492002 · Missed or late test: 492002 · Missed or late test: 492002 · Missed or late test: 492003 · Over the limit: 32004 · Missed or late test: 120052006 · Over the limit: 32007 · Over the limit: 52007 · Missed or late test: 22008 · Over the limit: 32008 · Missed or late test: 32009 · Over the limit: 42010 · Over the limit: 520102011 · Over the limit: 52012 · Over the limit: 42012 · Missed or late test: 12013 · Over the limit: 42013 · Missed or late test: 12014 · Over the limit: 42015 · Over the limit: 420152016 · Over the limit: 42017 · Over the limit: 42018 · Over the limit: 42019 · Over the limit: 220202021 · Missed or late test: 12024 · Treatment lapse: 12024 · Notice or report: 12025
One square ≈ 5 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
52% over the limit · 66<1% treatment lapse · 147% missed or late test · 60<1% notice or report · 1

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×+ArsenicTetrachloroethylene2019-04-01 · Arsenic: measured 0.0250 MG/L vs limit 0.0100 MG/L (2.5×)2019-01-01 · Arsenic: measured 0.0210 MG/L vs limit 0.0100 MG/L (2.1×)2018-10-01 · Arsenic: measured 0.0350 MG/L vs limit 0.0100 MG/L (3.5×)2018-07-01 · Arsenic: measured 0.0380 MG/L vs limit 0.0100 MG/L (3.8×)2018-04-01 · Arsenic: measured 0.0450 MG/L vs limit 0.0100 MG/L (4.5×)2018-01-01 · Arsenic: measured 0.0440 MG/L vs limit 0.0100 MG/L (4.4×)2017-10-01 · Arsenic: measured 0.0410 MG/L vs limit 0.0100 MG/L (4.1×)2017-07-01 · Arsenic: measured 0.0400 MG/L vs limit 0.0100 MG/L (4.0×)2017-04-01 · Arsenic: measured 0.0400 MG/L vs limit 0.0100 MG/L (4.0×)2017-01-01 · Arsenic: measured 0.0400 MG/L vs limit 0.0100 MG/L (4.0×)2016-10-01 · Arsenic: measured 0.0330 MG/L vs limit 0.0100 MG/L (3.3×)2016-07-01 · Arsenic: measured 0.0310 MG/L vs limit 0.0100 MG/L (3.1×)2016-04-01 · Arsenic: measured 0.0310 MG/L vs limit 0.0100 MG/L (3.1×)2016-01-01 · Arsenic: measured 0.0310 MG/L vs limit 0.0100 MG/L (3.1×)2015-10-01 · Arsenic: measured 0.0300 MG/L vs limit 0.0100 MG/L (3.0×)2015-07-01 · Arsenic: measured 0.0300 MG/L vs limit 0.0100 MG/L (3.0×)2015-04-01 · Arsenic: measured 0.0310 MG/L vs limit 0.0100 MG/L (3.1×)2015-01-01 · Arsenic: measured 0.0300 MG/L vs limit 0.0100 MG/L (3.0×)2014-10-01 · Arsenic: measured 0.0300 MG/L vs limit 0.0100 MG/L (3.0×)2014-07-01 · Arsenic: measured 0.0330 MG/L vs limit 0.0100 MG/L (3.3×)2014-04-01 · Arsenic: measured 0.0320 MG/L vs limit 0.0100 MG/L (3.2×)2014-01-01 · Arsenic: measured 0.0330 MG/L vs limit 0.0100 MG/L (3.3×)2013-10-01 · Arsenic: measured 0.0330 MG/L vs limit 0.0100 MG/L (3.3×)2013-07-01 · Arsenic: measured 0.0340 MG/L vs limit 0.0100 MG/L (3.4×)2013-04-01 · Arsenic: measured 0.0330 MG/L vs limit 0.0100 MG/L (3.3×)2013-01-01 · Arsenic: measured 0.0330 MG/L vs limit 0.0100 MG/L (3.3×)2012-10-01 · Arsenic: measured 0.0310 MG/L vs limit 0.0100 MG/L (3.1×)2012-07-01 · Arsenic: measured 0.0300 MG/L vs limit 0.0100 MG/L (3.0×)2012-04-01 · Arsenic: measured 0.0317 MG/L vs limit 0.0100 MG/L (3.2×)2012-01-01 · Arsenic: measured 0.0320 MG/L vs limit 0.0100 MG/L (3.2×)2011-10-01 · Arsenic: measured 0.0330 MG/L vs limit 0.0100 MG/L (3.3×)2011-07-01 · Arsenic: measured 0.0333 MG/L vs limit 0.0100 MG/L (3.3×)2011-04-01 · Arsenic: measured 0.0345 MG/L vs limit 0.0100 MG/L (3.5×)2011-01-01 · Arsenic: measured 0.0358 MG/L vs limit 0.0100 MG/L (3.6×)2010-10-01 · Arsenic: measured 0.0368 MG/L vs limit 0.0100 MG/L (3.7×)2010-07-01 · Arsenic: measured 0.0368 MG/L vs limit 0.0100 MG/L (3.7×)2010-04-01 · Arsenic: measured 0.0360 MG/L vs limit 0.0100 MG/L (3.6×)2010-01-01 · Arsenic: measured 0.0353 MG/L vs limit 0.0100 MG/L (3.5×)2009-10-01 · Arsenic: measured 0.0350 MG/L vs limit 0.0100 MG/L (3.5×)2009-07-01 · Arsenic: measured 0.0249 MG/L vs limit 0.0100 MG/L (2.5×)2009-04-01 · Arsenic: measured 0.0360 MG/L vs limit 0.0100 MG/L (3.6×)2009-01-01 · Arsenic: measured 0.0358 MG/L vs limit 0.0100 MG/L (3.6×)2008-10-01 · Arsenic: measured 0.0353 MG/L vs limit 0.0100 MG/L (3.5×)2008-07-01 · Arsenic: measured 0.0377 MG/L vs limit 0.0100 MG/L (3.8×)2008-04-01 · Arsenic: measured 0.0437 MG/L vs limit 0.0100 MG/L (4.4×)2007-10-01 · Arsenic: measured 0.0480 MG/L vs limit 0.0100 MG/L (4.8×)2007-07-01 · Arsenic: measured 0.0433 MG/L vs limit 0.0100 MG/L (4.3×)2007-04-01 · Arsenic: measured 0.0418 MG/L vs limit 0.0100 MG/L (4.2×)2007-01-01 · Arsenic: measured 0.0453 MG/L vs limit 0.0100 MG/L (4.5×)2006-10-01 · Arsenic: measured 0.0403 MG/L vs limit 0.0100 MG/L (4.0×)2006-07-01 · Arsenic: measured 0.0325 MG/L vs limit 0.0100 MG/L (3.2×)2006-04-01 · Arsenic: measured 0.0328 MG/L vs limit 0.0100 MG/L (3.3×)2000-01-11 · Tetrachloroethylene: measured 0.006300 MG/L vs limit 0.005000 MG/L (1.3×)1999-06-24 · Tetrachloroethylene: measured 0.006600 MG/L vs limit 0.005000 MG/L (1.3×)
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

7 ppb
1 ppb
0 ppb

Open now (2)

  1. 2024-10-17Lead service line inventoryRPTOpen
  2. 2024-10-17Lead service line inventoryTTOpen

Every violation on record

  1. 2024-10-17Lead service line inventoryRPTOpen
  2. 2024-10-17Lead service line inventoryTTOpen
  3. 2021-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  4. 2019-04-01ArsenicMCL, Averagemeasured 0.0250 MG/L · limit 0.0100 MG/LBack in compliance
  5. 2019-01-01ArsenicMCL, Averagemeasured 0.0210 MG/L · limit 0.0100 MG/LBack in compliance
  6. 2018-10-01ArsenicMCL, Averagemeasured 0.0350 MG/L · limit 0.0100 MG/LBack in compliance
  7. 2018-07-01ArsenicMCL, Averagemeasured 0.0380 MG/L · limit 0.0100 MG/LBack in compliance
  8. 2018-04-01ArsenicMCL, Averagemeasured 0.0450 MG/L · limit 0.0100 MG/LBack in compliance
  9. 2018-01-01ArsenicMCL, Averagemeasured 0.0440 MG/L · limit 0.0100 MG/LBack in compliance
  10. 2017-10-01ArsenicMCL, Averagemeasured 0.0410 MG/L · limit 0.0100 MG/LBack in compliance
  11. 2017-07-01ArsenicMCL, Averagemeasured 0.0400 MG/L · limit 0.0100 MG/LBack in compliance
  12. 2017-04-01ArsenicMCL, Averagemeasured 0.0400 MG/L · limit 0.0100 MG/LBack in compliance
  13. 2017-01-01ArsenicMCL, Averagemeasured 0.0400 MG/L · limit 0.0100 MG/LBack in compliance
  14. 2016-10-01ArsenicMCL, Averagemeasured 0.0330 MG/L · limit 0.0100 MG/LBack in compliance
  15. 2016-07-01ArsenicMCL, Averagemeasured 0.0310 MG/L · limit 0.0100 MG/LBack in compliance
  16. 2016-04-01ArsenicMCL, Averagemeasured 0.0310 MG/L · limit 0.0100 MG/LBack in compliance
  17. 2016-01-01ArsenicMCL, Averagemeasured 0.0310 MG/L · limit 0.0100 MG/LBack in compliance
  18. 2015-10-01ArsenicMCL, Averagemeasured 0.0300 MG/L · limit 0.0100 MG/LBack in compliance
  19. 2015-07-01ArsenicMCL, Averagemeasured 0.0300 MG/L · limit 0.0100 MG/LBack in compliance
  20. 2015-04-01ArsenicMCL, Averagemeasured 0.0310 MG/L · limit 0.0100 MG/LBack in compliance
  21. 2015-01-01ArsenicMCL, Averagemeasured 0.0300 MG/L · limit 0.0100 MG/LBack in compliance
  22. 2014-10-01ArsenicMCL, Averagemeasured 0.0300 MG/L · limit 0.0100 MG/LBack in compliance
  23. 2014-07-01ArsenicMCL, Averagemeasured 0.0330 MG/L · limit 0.0100 MG/LBack in compliance
  24. 2014-04-01ArsenicMCL, Averagemeasured 0.0320 MG/L · limit 0.0100 MG/LBack in compliance
  25. 2014-01-01ArsenicMCL, Averagemeasured 0.0330 MG/L · limit 0.0100 MG/LBack in compliance
Show the other 103 entries
  1. 2013-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  2. 2013-10-01ArsenicMCL, Averagemeasured 0.0330 MG/L · limit 0.0100 MG/LBack in compliance
  3. 2013-07-01ArsenicMCL, Averagemeasured 0.0340 MG/L · limit 0.0100 MG/LBack in compliance
  4. 2013-04-01ArsenicMCL, Averagemeasured 0.0330 MG/L · limit 0.0100 MG/LBack in compliance
  5. 2013-01-01ArsenicMCL, Averagemeasured 0.0330 MG/L · limit 0.0100 MG/LBack in compliance
  6. 2012-10-01ArsenicMCL, Averagemeasured 0.0310 MG/L · limit 0.0100 MG/LBack in compliance
  7. 2012-07-01ArsenicMCL, Averagemeasured 0.0300 MG/L · limit 0.0100 MG/LBack in compliance
  8. 2012-04-01ArsenicMCL, Averagemeasured 0.0317 MG/L · limit 0.0100 MG/LBack in compliance
  9. 2012-01-01NitrateMonitoring, RegularBack in compliance
  10. 2012-01-01ArsenicMCL, Averagemeasured 0.0320 MG/L · limit 0.0100 MG/LBack in compliance
  11. 2011-10-01ArsenicMCL, Averagemeasured 0.0330 MG/L · limit 0.0100 MG/LBack in compliance
  12. 2011-07-01ArsenicMCL, Averagemeasured 0.0333 MG/L · limit 0.0100 MG/LBack in compliance
  13. 2011-04-01ArsenicMCL, Averagemeasured 0.0345 MG/L · limit 0.0100 MG/LBack in compliance
  14. 2011-03-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  15. 2011-01-01ArsenicMCL, Averagemeasured 0.0358 MG/L · limit 0.0100 MG/LBack in compliance
  16. 2010-10-01ArsenicMCL, Averagemeasured 0.0368 MG/L · limit 0.0100 MG/LBack in compliance
  17. 2010-07-01ArsenicMCL, Averagemeasured 0.0368 MG/L · limit 0.0100 MG/LBack in compliance
  18. 2010-04-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  19. 2010-04-01ArsenicMCL, Averagemeasured 0.0360 MG/L · limit 0.0100 MG/LBack in compliance
  20. 2010-01-01ArsenicMCL, Averagemeasured 0.0353 MG/L · limit 0.0100 MG/LBack in compliance
  21. 2009-10-01ArsenicMCL, Averagemeasured 0.0350 MG/L · limit 0.0100 MG/LBack in compliance
  22. 2009-07-01ArsenicMCL, Averagemeasured 0.0249 MG/L · limit 0.0100 MG/LBack in compliance
  23. 2009-04-01ArsenicMCL, Averagemeasured 0.0360 MG/L · limit 0.0100 MG/LBack in compliance
  24. 2009-01-01ArsenicMCL, Averagemeasured 0.0358 MG/L · limit 0.0100 MG/LBack in compliance
  25. 2008-10-01ArsenicMCL, Averagemeasured 0.0353 MG/L · limit 0.0100 MG/LBack in compliance
  26. 2008-07-01ArsenicMCL, Averagemeasured 0.0377 MG/L · limit 0.0100 MG/LBack in compliance
  27. 2008-04-01ArsenicMCL, Averagemeasured 0.0437 MG/L · limit 0.0100 MG/LBack in compliance
  28. 2008-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  29. 2008-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  30. 2008-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  31. 2007-10-01ArsenicMCL, Averagemeasured 0.0480 MG/L · limit 0.0100 MG/LBack in compliance
  32. 2007-07-01ArsenicMCL, Averagemeasured 0.0433 MG/L · limit 0.0100 MG/LBack in compliance
  33. 2007-04-01ArsenicMCL, Averagemeasured 0.0418 MG/L · limit 0.0100 MG/LBack in compliance
  34. 2007-03-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  35. 2007-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  36. 2007-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  37. 2007-01-01ArsenicMCL, Averagemeasured 0.0453 MG/L · limit 0.0100 MG/LBack in compliance
  38. 2006-10-01ArsenicMCL, Averagemeasured 0.0403 MG/L · limit 0.0100 MG/LBack in compliance
  39. 2006-07-01ArsenicMCL, Averagemeasured 0.0325 MG/L · limit 0.0100 MG/LBack in compliance
  40. 2006-04-01ArsenicMCL, Averagemeasured 0.0328 MG/L · limit 0.0100 MG/LBack in compliance
  41. 2004-01-01NitrateMonitoring, RegularBack in compliance
  42. 2003-07-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  43. 2003-04-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  44. 2003-02-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  45. 2002-10-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  46. 2002-05-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  47. 2002-01-01TrichlorotrifluoroethaneMonitoring, RegularBack in compliance
  48. 2002-01-01Xylenes, TotalMonitoring, RegularBack in compliance
  49. 2002-01-01Ethylene DibromideMonitoring, RegularBack in compliance
  50. 2002-01-01TurbidityMonitoring, RegularBack in compliance
  51. 2002-01-01StyreneMonitoring, RegularBack in compliance
  52. 2002-01-01MercuryMonitoring, RegularBack in compliance
  53. 2002-01-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  54. 2002-01-01TrichloroethyleneMonitoring, RegularBack in compliance
  55. 2002-01-01Hydroxide as Calcium CarbonateMonitoring, RegularBack in compliance
  56. 2002-01-01Vinyl chlorideMonitoring, RegularBack in compliance
  57. 2002-01-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularBack in compliance
  58. 2002-01-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  59. 2002-01-01SeleniumMonitoring, RegularBack in compliance
  60. 2002-01-011, 3-DichloropropeneMonitoring, RegularBack in compliance
  61. 2002-01-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  62. 2002-01-01Antimony, TotalMonitoring, RegularBack in compliance
  63. 2002-01-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  64. 2002-01-011,2-DichloropropaneMonitoring, RegularBack in compliance
  65. 2002-01-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  66. 2002-01-01NickelMonitoring, RegularBack in compliance
  67. 2002-01-01Thallium, TotalMonitoring, RegularBack in compliance
  68. 2002-01-011,2-DichloroethaneMonitoring, RegularBack in compliance
  69. 2002-01-011,1,2,2-TetrachloroethaneMonitoring, RegularBack in compliance
  70. 2002-01-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  71. 2002-01-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  72. 2002-01-01ChromiumMonitoring, RegularBack in compliance
  73. 2002-01-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  74. 2002-01-01CadmiumMonitoring, RegularBack in compliance
  75. 2002-01-011,1-DichloroethaneMonitoring, RegularBack in compliance
  76. 2002-01-01Beryllium, TotalMonitoring, RegularBack in compliance
  77. 2002-01-01TrichlorofluoromethaneMonitoring, RegularBack in compliance
  78. 2002-01-01BariumMonitoring, RegularBack in compliance
  79. 2002-01-01FluorideMonitoring, RegularBack in compliance
  80. 2002-01-01TetrachloroethyleneMonitoring, RegularBack in compliance
  81. 2002-01-01DichloromethaneMonitoring, RegularBack in compliance
  82. 2002-01-01EthylbenzeneMonitoring, RegularBack in compliance
  83. 2002-01-01SodiumMonitoring, RegularBack in compliance
  84. 2002-01-01ChlorobenzeneMonitoring, RegularBack in compliance
  85. 2002-01-01MagnesiumMonitoring, RegularBack in compliance
  86. 2002-01-01BenzeneMonitoring, RegularBack in compliance
  87. 2002-01-01CalciumMonitoring, RegularBack in compliance
  88. 2002-01-01TolueneMonitoring, RegularBack in compliance
  89. 2002-01-01Hardness, Total (as CaC03)Monitoring, RegularBack in compliance
  90. 2002-01-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  91. 2002-01-01NitriteMonitoring, RegularBack in compliance
  92. 2002-01-01Alkalinity, CarbonateMonitoring, RegularBack in compliance
  93. 2002-01-01Alkalinity, BicarbonateMonitoring, RegularBack in compliance
  94. 2002-01-01pHMonitoring, RegularBack in compliance
  95. 2002-01-01NitrateMonitoring, RegularBack in compliance
  96. 2001-01-01NitrateMonitoring, RegularBack in compliance
  97. 2000-01-11TetrachloroethyleneMCL, Averagemeasured 0.006300 MG/L · limit 0.005000 MG/LBack in compliance
  98. 1999-06-24TetrachloroethyleneMCL, Averagemeasured 0.006600 MG/L · limit 0.005000 MG/LBack in compliance
  99. 1999-02-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  100. 1999-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  101. 1998-08-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  102. 1998-07-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  103. 1997-11-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance

System details

Population served19,669
Service connections4,349
Water sourceGroundwater
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityArvin
EPA ZIP on file93203

Areas served

  • Kern County

Reading this record

Arvin Community Services Dist is a community water system that draws from groundwater and serves about 19,669 people in Arvin, 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.