Community Water System · PWSID AZ0414014

Shepard Water Company

Serves 430 peopleGroundwaterOwner: PrivateYuma, 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 2002: 102 violations. 16 over the limit · 3 treatment lapses · 55 missed or late tests · 28 notices or reports. Most recent began 2025-08-01.

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

16Over the limit
3Treatment lapse
55Missed or late test1 open
28Notice or report

More violations on record than 95% 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

2002 · Notice or report: 12003 · Notice or report: 12004 · Missed or late test: 12004 · Notice or report: 12005 · Notice or report: 120052006 · Notice or report: 12007 · Missed or late test: 12007 · Notice or report: 12008 · Missed or late test: 12008 · Notice or report: 12009 · Missed or late test: 12009 · Notice or report: 120102011 · Notice or report: 22012 · Missed or late test: 12012 · Notice or report: 22015 · Over the limit: 32015 · Over the limit: 32015 · Missed or late test: 12015 · Notice or report: 220152016 · Over the limit: 22016 · Missed or late test: 62016 · Missed or late test: 62016 · Missed or late test: 62017 · Missed or late test: 42017 · Missed or late test: 42018 · Over the limit: 12018 · Missed or late test: 82018 · Missed or late test: 82018 · Missed or late test: 82018 · Missed or late test: 82018 · Notice or report: 12019 · Over the limit: 42019 · Over the limit: 42019 · Missed or late test: 102019 · Missed or late test: 102019 · Missed or late test: 102019 · Missed or late test: 102019 · Missed or late test: 102019 · Notice or report: 12020 · Over the limit: 42020 · Over the limit: 42020 · Missed or late test: 62020 · Missed or late test: 62020 · Missed or late test: 62020 · Notice or report: 102020 · Notice or report: 102020 · Notice or report: 102020 · Notice or report: 102020 · Notice or report: 1020202021 · Over the limit: 12021 · Treatment lapse: 22021 · Missed or late test: 42021 · Missed or late test: 42021 · Notice or report: 12022 · Over the limit: 12022 · Treatment lapse: 12022 · Missed or late test: 32022 · Missed or late test: 32022 · Notice or report: 12024 · Missed or late test: 12025 · Missed or late test: 72025 · Missed or late test: 72025 · Missed or late test: 72025 · Missed or late test: 72025
One square ≈ 2 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
16% over the limit · 163% treatment lapse · 354% missed or late test · 5527% notice or report · 28

Across Arizona, 65% of violations are missed or late tests and 5% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Arsenic2022-01-01 · Arsenic: measured 0.0110 MG/L vs limit 0.0100 MG/L (1.1×)2021-10-01 · Arsenic: measured 0.0110 MG/L vs limit 0.0100 MG/L (1.1×)2020-01-01 · Arsenic: measured 0.0130 MG/L vs limit 0.0100 MG/L (1.3×)2019-10-01 · Arsenic: measured 0.0130 MG/L vs limit 0.0100 MG/L (1.3×)2019-07-01 · Arsenic: measured 0.0130 MG/L vs limit 0.0100 MG/L (1.3×)2019-04-01 · Arsenic: measured 0.0120 MG/L vs limit 0.0100 MG/L (1.2×)2019-01-01 · Arsenic: measured 0.0120 MG/L vs limit 0.0100 MG/L (1.2×)2018-10-01 · Arsenic: measured 0.0120 MG/L vs limit 0.0100 MG/L (1.2×)2016-04-01 · Arsenic: measured 0.0110 MG/L vs limit 0.0100 MG/L (1.1×)2016-01-01 · Arsenic: measured 0.0140 MG/L vs limit 0.0100 MG/L (1.4×)2015-10-01 · Arsenic: measured 0.0170 MG/L vs limit 0.0100 MG/L (1.7×)2015-07-01 · Arsenic: measured 0.0160 MG/L vs limit 0.0100 MG/L (1.6×)2015-04-01 · Arsenic: measured 0.0140 MG/L vs limit 0.0100 MG/L (1.4×)
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 10 results on file · action level 15 ppb

25 ppb
14.9 ppb
11 ppb
9 ppb
9 ppb
7.9 ppb
6.5 ppb
6.4 ppb
6.2 ppb
5.3 ppb

Open now (1)

  1. 2004-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuOpen

Every violation on record

  1. 2025-08-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  2. 2025-08-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  3. 2025-04-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  4. 2025-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  5. 2025-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  6. 2025-01-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  7. 2025-01-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  8. 2024-12-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  9. 2022-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  10. 2022-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  11. 2022-07-01Lead and Copper RuleOCCT/SOWT Study/RecommendationBack in compliance
  12. 2022-02-13Public NoticePN Violation for NPDWR ViolationBack in compliance
  13. 2022-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  14. 2022-01-01ArsenicMCL, Averagemeasured 0.0110 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  15. 2021-11-16Lead and Copper RuleLead Consumer NoticeBack in compliance
  16. 2021-11-01Revised Total Coliform RuleRPTBack in compliance
  17. 2021-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  18. 2021-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  19. 2021-10-01ArsenicMCL, Averagemeasured 0.0110 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  20. 2021-04-09Groundwater RuleFailure To Address DeficiencyBack in compliance
  21. 2021-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  22. 2021-03-25Groundwater RuleFailure To Address DeficiencyBack in compliance
  23. 2020-12-01Revised Total Coliform RuleRPTBack in compliance
  24. 2020-11-27Public NoticePN Violation for NPDWR ViolationBack in compliance
  25. 2020-11-18Public NoticePN Violation for NPDWR ViolationBack in compliance
Show the other 77 entries
  1. 2020-11-01Revised Total Coliform RuleRPTBack in compliance
  2. 2020-10-02Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  3. 2020-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  4. 2020-10-01ArsenicMCL, Averagemeasured 0.0110 MG/LBack in compliance
  5. 2020-08-27Public NoticePN Violation for NPDWR ViolationBack in compliance
  6. 2020-08-05Public NoticePN Violation for NPDWR ViolationBack in compliance
  7. 2020-08-01Revised Total Coliform RuleRPTBack in compliance
  8. 2020-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  9. 2020-07-01ArsenicMCL, Averagemeasured 0.0130 MG/LBack in compliance
  10. 2020-05-09Public NoticePN Violation for NPDWR ViolationBack in compliance
  11. 2020-04-01ArsenicMCL, Averagemeasured 0.0130 MG/LBack in compliance
  12. 2020-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  13. 2020-04-01Revised Total Coliform RuleMONBack in compliance
  14. 2020-02-14Public NoticePN Violation for NPDWR ViolationBack in compliance
  15. 2020-02-01Revised Total Coliform RuleMONBack in compliance
  16. 2020-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  17. 2020-01-01ArsenicMCL, Averagemeasured 0.0130 MG/L · limit 0.0100 MG/LBack in compliance
  18. 2019-10-02Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  19. 2019-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  20. 2019-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  21. 2019-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  22. 2019-10-01ArsenicMCL, Averagemeasured 0.0130 MG/L · limit 0.0100 MG/LBack in compliance
  23. 2019-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  24. 2019-07-01ArsenicMCL, Averagemeasured 0.0130 MG/L · limit 0.0100 MG/LBack in compliance
  25. 2019-07-01Revised Total Coliform RuleMONBack in compliance
  26. 2019-04-01ArsenicMonitoring, RegularBack in compliance
  27. 2019-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  28. 2019-04-01ArsenicMCL, Averagemeasured 0.0120 MG/L · limit 0.0100 MG/LBack in compliance
  29. 2019-01-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  30. 2019-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  31. 2019-01-01ArsenicMCL, Averagemeasured 0.0120 MG/L · limit 0.0100 MG/LBack in compliance
  32. 2019-01-01ArsenicMonitoring, RegularBack in compliance
  33. 2018-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  34. 2018-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  35. 2018-10-01ArsenicMCL, Averagemeasured 0.0120 MG/L · limit 0.0100 MG/LBack in compliance
  36. 2018-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  37. 2018-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  38. 2018-09-01Revised Total Coliform RuleRPTBack in compliance
  39. 2018-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  40. 2018-05-01Revised Total Coliform RuleMONBack in compliance
  41. 2018-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  42. 2018-01-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  43. 2017-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  44. 2017-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  45. 2017-04-01ArsenicMonitoring, RegularBack in compliance
  46. 2017-01-01ArsenicMonitoring, RegularBack in compliance
  47. 2016-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  48. 2016-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  49. 2016-10-01ArsenicMonitoring, RegularBack in compliance
  50. 2016-04-01ArsenicMCL, Averagemeasured 0.0110 MG/L · limit 0.0100 MG/LBack in compliance
  51. 2016-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  52. 2016-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  53. 2016-01-01ArsenicMonitoring, RegularBack in compliance
  54. 2016-01-01ArsenicMCL, Averagemeasured 0.0140 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  55. 2015-10-01ArsenicMCL, Averagemeasured 0.0170 MG/L · limit 0.0100 MG/LBack in compliance
  56. 2015-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  57. 2015-07-01ArsenicMCL, Averagemeasured 0.0160 MG/L · limit 0.0100 MG/LBack in compliance
  58. 2015-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  59. 2015-04-01ArsenicMCL, Averagemeasured 0.0140 MG/L · limit 0.0100 MG/LBack in compliance
  60. 2015-01-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  61. 2012-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  62. 2012-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  63. 2012-01-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  64. 2011-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  65. 2011-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  66. 2009-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  67. 2009-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  68. 2008-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  69. 2008-01-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance
  70. 2007-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance
  71. 2007-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  72. 2006-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  73. 2005-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  74. 2004-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuOpen
  75. 2004-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  76. 2003-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  77. 2002-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served430
Service connections163
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityYuma
EPA ZIP on file85365

Areas served

  • Martinez Lake, Yuma County

Reading this record

Shepard Water Company is a community water system that draws from groundwater and serves about 430 people in Yuma, 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.