Community Water System · PWSID AZ0411005

Silverbell Irrigation & Drainage Dist

Serves 375 peopleGroundwaterOwner: Public/PrivateArizona City, Arizona
Nothing open right now.

On record since 2002: 67 violations. 2 over the limit · 37 missed or late tests · 28 notices or reports. Most recent began 2025-05-01.

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

2Over the limit
0Treatment lapse
37Missed or late test
28Notice or report

More violations on record than 91% 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: 12005 · Notice or report: 120052006 · Missed or late test: 12006 · Notice or report: 12007 · Missed or late test: 12007 · Notice or report: 12009 · Missed or late test: 12009 · Notice or report: 120102011 · Notice or report: 12012 · Missed or late test: 12012 · Notice or report: 12013 · Missed or late test: 12013 · Notice or report: 22013 · Notice or report: 22015 · Missed or late test: 22015 · Missed or late test: 22015 · Notice or report: 22015 · Notice or report: 220152016 · Missed or late test: 52016 · Missed or late test: 52016 · Missed or late test: 52016 · Missed or late test: 52016 · Missed or late test: 52017 · Missed or late test: 22017 · Missed or late test: 22017 · Notice or report: 32017 · Notice or report: 32017 · Notice or report: 32019 · Over the limit: 12019 · Missed or late test: 22019 · Missed or late test: 22019 · Notice or report: 12020 · Missed or late test: 52020 · Missed or late test: 52020 · Missed or late test: 52020 · Missed or late test: 52020 · Missed or late test: 52020 · Notice or report: 32020 · Notice or report: 32020 · Notice or report: 320202021 · Missed or late test: 42021 · Missed or late test: 42021 · Missed or late test: 42021 · Missed or late test: 42021 · Notice or report: 12022 · Missed or late test: 22022 · Missed or late test: 22022 · Notice or report: 42022 · Notice or report: 42022 · Notice or report: 42022 · Notice or report: 42023 · Missed or late test: 72023 · Missed or late test: 72023 · Missed or late test: 72023 · Missed or late test: 72023 · Missed or late test: 72023 · Missed or late test: 72023 · Missed or late test: 72023 · Notice or report: 42023 · Notice or report: 42023 · Notice or report: 42023 · Notice or report: 42025 · Over the limit: 12025 · Missed or late test: 22025 · Missed or late test: 22025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
3% over the limit · 255% missed or late test · 3742% 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×+NitrateArsenic2025-01-01 · Nitrate: measured 33.00 MG/L vs limit 10.00 MG/L (3.3×)2019-01-01 · Arsenic: measured 12.90 UG/L vs limit 10.00 UG/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 7 results on file · action level 15 ppb

13 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb

Every violation on record

  1. 2025-05-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  2. 2025-01-01NitrateMCL, Single Samplemeasured 33.00 MG/L · limit 10.00 MG/LPeriod ended · no return to compliance on file
  3. 2025-01-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  4. 2023-10-02Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  5. 2023-10-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  6. 2023-08-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  7. 2023-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  8. 2023-07-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  9. 2023-06-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  10. 2023-04-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  11. 2023-03-01Revised Total Coliform RuleRPTBack in compliance
  12. 2023-02-01Revised Total Coliform RuleRPTBack in compliance
  13. 2023-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  14. 2023-01-01Revised Total Coliform RuleMONBack in compliance
  15. 2022-12-01Revised Total Coliform RuleRPTBack in compliance
  16. 2022-11-01Revised Total Coliform RuleRPTBack in compliance
  17. 2022-10-02Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  18. 2022-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  19. 2022-10-01Revised Total Coliform RuleRPTBack in compliance
  20. 2022-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  21. 2021-09-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  22. 2021-09-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  23. 2021-05-15Public NoticePN Violation for NPDWR ViolationBack in compliance
  24. 2021-04-01ArsenicMonitoring, RegularBack in compliance
  25. 2021-01-01ArsenicMonitoring, RegularBack in compliance
Show the other 42 entries
  1. 2020-09-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  2. 2020-09-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  3. 2020-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  4. 2020-07-01ArsenicMonitoring, RegularBack in compliance
  5. 2020-04-01Revised Total Coliform RuleRPTBack in compliance
  6. 2020-02-01Revised Total Coliform RuleRPTBack in compliance
  7. 2020-01-01ArsenicMonitoring, RegularBack in compliance
  8. 2020-01-01Revised Total Coliform RuleRPTBack in compliance
  9. 2019-09-01Revised Total Coliform RuleRPTBack in compliance
  10. 2019-01-01ArsenicMCL, Averagemeasured 12.90 UG/L · limit 10.00 UG/LBack in compliance
  11. 2019-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  12. 2019-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  13. 2017-11-03Lead and Copper RuleLead Consumer NoticeBack in compliance
  14. 2017-07-01Revised Total Coliform RuleRPTBack in compliance
  15. 2017-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  16. 2017-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  17. 2017-01-01Revised Total Coliform RuleRPTBack in compliance
  18. 2016-11-01Revised Total Coliform RuleMONBack in compliance
  19. 2016-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  20. 2016-09-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  21. 2016-09-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  22. 2016-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  23. 2015-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  24. 2015-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  25. 2015-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  26. 2015-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  27. 2013-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  28. 2013-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  29. 2013-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  30. 2012-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  31. 2012-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  32. 2011-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  33. 2009-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  34. 2009-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  35. 2007-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  36. 2007-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  37. 2006-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  38. 2006-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  39. 2005-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  40. 2004-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  41. 2003-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  42. 2002-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served375
Service connections150
Water sourceGroundwater
System typeCommunity Water System
OwnerPublic/Private
StatusActive
CityArizona City
EPA ZIP on file85123

Areas served

  • Eloy, Pinal County

Reading this record

Silverbell Irrigation & Drainage Dist is a community water system that draws from groundwater and serves about 375 people in Arizona City, 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.