Community Water System · PWSID IL1135150

Cropsey Mutual Water Association

Serves 65 peopleGroundwaterOwner: PrivateLincoln, Illinois
Nothing open that measures the water, but 10 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: 64 violations. 4 treatment lapses · 43 missed or late tests · 17 notices or reports. Most recent began 2025-08-20.

None of them is a measurement of contaminated water.

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

0Over the limit
4Treatment lapse
43Missed or late test5 open
17Notice or report5 open

More violations on record than 96% of active water systems in Illinois. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

1996 · Treatment lapse: 220002001 · Notice or report: 12002 · Notice or report: 22005 · Notice or report: 2200520102015 · Missed or late test: 220152016 · Missed or late test: 22016 · Notice or report: 12017 · Notice or report: 12018 · Notice or report: 32018 · Notice or report: 32019 · Treatment lapse: 12019 · Missed or late test: 12020 · Treatment lapse: 12020 · Missed or late test: 12020 · Notice or report: 120202021 · Missed or late test: 32021 · Missed or late test: 32021 · Notice or report: 12022 · Missed or late test: 12023 · Missed or late test: 22024 · Missed or late test: 192024 · Missed or late test: 192024 · Missed or late test: 192024 · Missed or late test: 192024 · Missed or late test: 192024 · Missed or late test: 192024 · Missed or late test: 192024 · Missed or late test: 192024 · Missed or late test: 192024 · Missed or late test: 192024 · Notice or report: 32024 · Notice or report: 32025 · Missed or late test: 122025 · Missed or late test: 122025 · Missed or late test: 122025 · Missed or late test: 122025 · Missed or late test: 122025 · Missed or late test: 122025 · Notice or report: 22025
One square ≈ 2 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
6% treatment lapse · 467% missed or late test · 4327% notice or report · 17

Across Illinois, 81% of violations are missed or late tests and 3% 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 7 results on file · action level 15 ppb

82 ppb
13 ppb
10 ppb
6.3 ppb
5 ppb
4 ppb
3 ppb

Open now (10)

  1. 2025-08-20Public Notice ×2PN Violation for NPDWR ViolationOpen
  2. 2025-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  3. 2024-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  4. 2024-08-15Public Notice ×2PN Violation for NPDWR ViolationOpen
  5. 2022-09-29Lead and Copper RuleLead Consumer NoticeOpen
  6. 2020-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  7. 2020-05-11Public NoticePN Violation for NPDWR ViolationOpen
  8. 2019-12-30Lead and Copper RuleLead Consumer NoticeOpen

Every violation on record

  1. 2025-08-20Public Notice ×2PN Violation for NPDWR ViolationOpen
  2. 2025-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  3. 2025-07-01NitrateMonitoring, RegularPeriod ended · no return to compliance on file
  4. 2025-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  5. 2025-07-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  6. 2025-06-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  7. 2025-06-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  8. 2025-02-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  9. 2025-02-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  10. 2025-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  11. 2025-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  12. 2025-01-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  13. 2025-01-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  14. 2024-12-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  15. 2024-12-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  16. 2024-11-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  17. 2024-11-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  18. 2024-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  19. 2024-10-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  20. 2024-10-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  21. 2024-09-01Revised Total Coliform RuleMONBack in compliance
  22. 2024-08-15Public Notice ×2PN Violation for NPDWR ViolationOpen
  23. 2024-08-01Revised Total Coliform RuleMONBack in compliance
  24. 2024-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  25. 2024-07-01Revised Total Coliform RuleMONBack in compliance
Show the other 35 entries
  1. 2024-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  2. 2024-06-01Revised Total Coliform RuleMONBack in compliance
  3. 2024-05-01Revised Total Coliform RuleMONBack in compliance
  4. 2024-04-01NitriteMonitoring, RegularPeriod ended · no return to compliance on file
  5. 2024-04-01Chlorine ×2Monitoring and Reporting (DBP)Back in compliance
  6. 2024-01-01NitrateMonitoring, RegularPeriod ended · no return to compliance on file
  7. 2024-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  8. 2024-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  9. 2023-06-01Revised Total Coliform RuleMONBack in compliance
  10. 2023-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  11. 2022-09-29Lead and Copper RuleLead Consumer NoticeOpen
  12. 2021-09-29Lead and Copper RuleLead Consumer NoticeBack in compliance
  13. 2021-07-14Public NoticePN Violation for NPDWR ViolationBack in compliance
  14. 2021-04-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  15. 2021-01-01NitrateMonitoring, RegularBack in compliance
  16. 2020-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  17. 2020-05-11Public NoticePN Violation for NPDWR ViolationOpen
  18. 2020-04-01Lead and Copper RuleOCCT/SOWT Study/RecommendationBack in compliance
  19. 2019-12-30Lead and Copper RuleLead Consumer NoticeOpen
  20. 2019-12-01Lead and Copper RulePublic EducationBack in compliance
  21. 2018-10-13Public NoticePN Violation for NPDWR ViolationBack in compliance
  22. 2018-01-13Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  23. 2017-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  24. 2016-12-01Revised Total Coliform RuleMONBack in compliance
  25. 2016-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  26. 2016-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  27. 2015-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  28. 2015-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  29. 2005-02-10Public NoticePN Violation without NPDWR ViolationBack in compliance
  30. 2005-02-10Public NoticePN Violation for NPDWR ViolationBack in compliance
  31. 2002-07-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  32. 2002-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  33. 2001-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  34. 1996-08-01Lead and Copper RuleOCCT/SOWT Study/RecommendationBack in compliance
  35. 1996-01-26Lead and Copper RuleOCCT/SOWT Study/RecommendationBack in compliance

System details

Population served65
Service connections30
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityLincoln
EPA ZIP on file62656

Areas served

  • Mclean County

Reading this record

Cropsey Mutual Water Association is a community water system that draws from groundwater and serves about 65 people in Lincoln, Illinois. 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.