Community Water System · PWSID IL0375125

Cortland Corners MHP

Serves 250 peopleGroundwaterOwner: PrivateMalta, Illinois
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 2005: 119 violations. 1 treatment lapse · 85 missed or late tests · 33 notices or reports. Most recent began 2025-08-22.

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
1Treatment lapse1 open
85Missed or late test2 open
33Notice or report22 open

More violations on record than 98% 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

2005 · Notice or report: 12005201020152019 · Missed or late test: 22020 · Missed or late test: 220202021 · Missed or late test: 162021 · Missed or late test: 162021 · Missed or late test: 162021 · Missed or late test: 162021 · Notice or report: 22022 · Missed or late test: 62022 · Missed or late test: 62022 · Notice or report: 12023 · Missed or late test: 212023 · Missed or late test: 212023 · Missed or late test: 212023 · Missed or late test: 212023 · Missed or late test: 212023 · Missed or late test: 212023 · Notice or report: 12024 · Treatment lapse: 12024 · Missed or late test: 242024 · Missed or late test: 242024 · Missed or late test: 242024 · Missed or late test: 242024 · Missed or late test: 242024 · Missed or late test: 242024 · Notice or report: 172024 · Notice or report: 172024 · Notice or report: 172024 · Notice or report: 172024 · Notice or report: 172025 · Missed or late test: 142025 · Missed or late test: 142025 · Missed or late test: 142025 · Missed or late test: 142025 · Notice or report: 112025 · Notice or report: 112025 · Notice or report: 112025
One square ≈ 4 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
<1% treatment lapse · 171% missed or late test · 8528% notice or report · 33

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 4 results on file · action level 15 ppb

0 ppb
0 ppb
0 ppb
0 ppb

Open now (25)

  1. 2025-08-22Public NoticePN Violation for NPDWR ViolationOpen
  2. 2025-07-02Lead service line inventoryRPTOpen
  3. 2025-07-01Consumer Confidence RuleCCR Inadequate ReportingOpen
  4. 2025-01-26Public NoticePN Violation for NPDWR ViolationOpen
  5. 2025-01-16Public NoticePN Violation for NPDWR ViolationOpen
  6. 2025-01-11Public Notice ×2PN Violation for NPDWR ViolationOpen
  7. 2024-11-06Public NoticePN Violation for NPDWR ViolationOpen
  8. 2024-10-17Lead service line inventoryRPTOpen
  9. 2024-10-17Lead service line inventoryTTOpen
  10. 2024-10-16Public NoticePN Violation for NPDWR ViolationOpen
  11. 2024-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  12. 2024-08-28Public Notice ×2PN Violation for NPDWR ViolationOpen
  13. 2024-08-15Public NoticePN Violation for NPDWR ViolationOpen
  14. 2024-08-13Public NoticePN Violation for NPDWR ViolationOpen
  15. 2024-07-20Public Notice ×2PN Violation for NPDWR ViolationOpen
  16. 2024-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen
  17. 2024-04-14Public NoticePN Violation for NPDWR ViolationOpen
  18. 2024-03-29Public Notice ×2PN Violation for NPDWR ViolationOpen
  19. 2023-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  20. 2023-07-01Consumer Confidence RuleCCR Inadequate ReportingOpen
  21. 2022-07-01Consumer Confidence RuleCCR Inadequate ReportingOpen

Every violation on record

  1. 2025-08-22Public NoticePN Violation for NPDWR ViolationOpen
  2. 2025-07-02Lead service line inventoryRPTOpen
  3. 2025-07-01Consumer Confidence RuleCCR Inadequate ReportingOpen
  4. 2025-07-01NitriteMonitoring, RegularPeriod ended · no return to compliance on file
  5. 2025-07-01NitrateMonitoring, RegularPeriod ended · no return to compliance on file
  6. 2025-07-01Combined Radium (-226 and -228)Monitoring, RegularPeriod ended · no return to compliance on file
  7. 2025-07-01Gross Alpha Particle ActivityMonitoring, RegularPeriod ended · no return to compliance on file
  8. 2025-04-19Public NoticePN Violation for NPDWR ViolationBack in compliance
  9. 2025-04-01Combined Radium (-226 and -228)Monitoring, RegularPeriod ended · no return to compliance on file
  10. 2025-04-01Gross Alpha Particle ActivityMonitoring, RegularPeriod ended · no return to compliance on file
  11. 2025-03-26Public NoticePN Violation for NPDWR ViolationBack in compliance
  12. 2025-03-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  13. 2025-03-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  14. 2025-02-21Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  15. 2025-02-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  16. 2025-02-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  17. 2025-01-26Public NoticePN Violation for NPDWR ViolationOpen
  18. 2025-01-16Public NoticePN Violation for NPDWR ViolationOpen
  19. 2025-01-11Public Notice ×2PN Violation for NPDWR ViolationOpen
  20. 2025-01-01Combined Radium (-226 and -228)Monitoring, RegularPeriod ended · no return to compliance on file
  21. 2025-01-01Gross Alpha Particle ActivityMonitoring, RegularPeriod ended · no return to compliance on file
  22. 2025-01-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  23. 2025-01-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  24. 2024-12-18Public NoticePN Violation for NPDWR ViolationBack in compliance
  25. 2024-12-07Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
Show the other 85 entries
  1. 2024-12-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  2. 2024-12-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  3. 2024-11-06Public NoticePN Violation for NPDWR ViolationOpen
  4. 2024-11-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  5. 2024-11-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  6. 2024-10-17Lead service line inventoryRPTOpen
  7. 2024-10-17Lead service line inventoryTTOpen
  8. 2024-10-16Public NoticePN Violation for NPDWR ViolationOpen
  9. 2024-10-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  10. 2024-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  11. 2024-10-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  12. 2024-10-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  13. 2024-09-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  14. 2024-08-28Public Notice ×2PN Violation for NPDWR ViolationOpen
  15. 2024-08-15Public NoticePN Violation for NPDWR ViolationOpen
  16. 2024-08-13Public NoticePN Violation for NPDWR ViolationOpen
  17. 2024-08-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  18. 2024-07-20Public Notice ×2PN Violation for NPDWR ViolationOpen
  19. 2024-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen
  20. 2024-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  21. 2024-07-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  22. 2024-06-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  23. 2024-05-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  24. 2024-04-14Public NoticePN Violation for NPDWR ViolationOpen
  25. 2024-04-01Chlorine ×2Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  26. 2024-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  27. 2024-04-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  28. 2024-03-29Public Notice ×2PN Violation for NPDWR ViolationOpen
  29. 2024-03-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  30. 2024-02-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  31. 2024-01-01NitrateMonitoring, RegularPeriod ended · no return to compliance on file
  32. 2024-01-01Combined Radium (-226 and -228)Monitoring, RegularPeriod ended · no return to compliance on file
  33. 2024-01-01Gross Alpha Particle ActivityMonitoring, RegularPeriod ended · no return to compliance on file
  34. 2024-01-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  35. 2024-01-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  36. 2023-12-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  37. 2023-11-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  38. 2023-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  39. 2023-10-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  40. 2023-10-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  41. 2023-09-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  42. 2023-08-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  43. 2023-07-01Consumer Confidence RuleCCR Inadequate ReportingOpen
  44. 2023-07-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  45. 2023-07-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  46. 2023-06-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  47. 2023-05-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  48. 2023-04-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  49. 2023-04-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  50. 2023-03-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  51. 2023-02-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  52. 2023-01-01NitrateMonitoring, RegularPeriod ended · no return to compliance on file
  53. 2023-01-01Gross Alpha Particle ActivityMonitoring, RegularPeriod ended · no return to compliance on file
  54. 2023-01-01Combined Radium (-226 and -228)Monitoring, RegularPeriod ended · no return to compliance on file
  55. 2023-01-01Chlorine ×2Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  56. 2023-01-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  57. 2022-08-01Revised Total Coliform RuleMONBack in compliance
  58. 2022-07-01Consumer Confidence RuleCCR Inadequate ReportingOpen
  59. 2022-07-01Gross Alpha Particle ActivityMonitoring, RegularBack in compliance
  60. 2022-07-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  61. 2022-07-01Combined UraniumMonitoring, RegularBack in compliance
  62. 2022-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  63. 2022-07-01Revised Total Coliform RuleMONBack in compliance
  64. 2021-12-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  65. 2021-11-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  66. 2021-10-01Gross Alpha Particle ActivityMonitoring, RegularBack in compliance
  67. 2021-10-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  68. 2021-10-01Combined UraniumMonitoring, RegularBack in compliance
  69. 2021-10-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  70. 2021-10-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  71. 2021-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  72. 2021-09-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  73. 2021-08-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  74. 2021-07-01Gross Alpha Particle ActivityMonitoring, RegularBack in compliance
  75. 2021-07-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  76. 2021-07-01Combined UraniumMonitoring, RegularBack in compliance
  77. 2021-07-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  78. 2021-07-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  79. 2021-03-12Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  80. 2021-01-01NitrateMonitoring, RegularPeriod ended · no return to compliance on file
  81. 2020-02-01Revised Total Coliform RuleMONBack in compliance
  82. 2020-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  83. 2019-11-01Revised Total Coliform RuleMONBack in compliance
  84. 2019-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  85. 2005-06-22Public NoticePN Violation for NPDWR ViolationBack in compliance

System details

Population served250
Service connections82
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityMalta
EPA ZIP on file60150

Areas served

  • Dekalb County

Reading this record

Cortland Corners MHP is a community water system that draws from groundwater and serves about 250 people in Malta, 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.