Non-Transient Non-Community · PWSID IL3008342

Harding Grade School

Serves 250 peopleGroundwaterOwner: Local GovernmentEarlville, IllinoisServes a school or daycare
Nothing open that measures the water, but 2 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 2011: 85 violations. 1 treatment lapse · 79 missed or late tests · 5 notices or reports. Most recent began 2025-07-01.

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 lapse
79Missed or late test
5Notice or report2 open

More violations on record than 97% 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

200520102011 · Missed or late test: 92011 · Missed or late test: 92011 · Missed or late test: 92013 · Missed or late test: 12014 · Missed or late test: 120152016 · Missed or late test: 222016 · Missed or late test: 222016 · Missed or late test: 222016 · Missed or late test: 222016 · Missed or late test: 222016 · Missed or late test: 222016 · Missed or late test: 222016 · Missed or late test: 222017 · Missed or late test: 22019 · Missed or late test: 32020 · Missed or late test: 220202021 · Missed or late test: 32022 · Missed or late test: 292022 · Missed or late test: 292022 · Missed or late test: 292022 · Missed or late test: 292022 · Missed or late test: 292022 · Missed or late test: 292022 · Missed or late test: 292022 · Missed or late test: 292022 · Missed or late test: 292022 · Missed or late test: 292022 · Notice or report: 12023 · Missed or late test: 42023 · Missed or late test: 42023 · Notice or report: 22024 · Treatment lapse: 12024 · Missed or late test: 12024 · Notice or report: 22025 · Missed or late test: 22025
One square ≈ 3 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
1% treatment lapse · 193% missed or late test · 796% notice or report · 5

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 10 results on file · action level 15 ppb

51.3 ppb
35.3 ppb
16.1 ppb
6.1 ppb
5.4 ppb
4.2 ppb
3.7 ppb
3.4 ppb
1.1 ppb
0 ppb

Copper, 90th percentile 3 results on file · action level 1.3 mg/L

1.6 mg/L
1.5 mg/L
1.4 mg/L

Open now (2)

  1. 2024-05-24Public NoticePN Violation for NPDWR ViolationOpen
  2. 2023-02-24Public NoticePN Violation for NPDWR ViolationOpen

Every violation on record

  1. 2025-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  2. 2025-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  3. 2024-10-17Lead service line inventoryTTBack in compliance
  4. 2024-10-17Lead service line inventoryRPTBack in compliance
  5. 2024-05-24Public NoticePN Violation for NPDWR ViolationOpen
  6. 2024-01-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  7. 2023-08-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  8. 2023-06-20Lead and Copper RuleLead Consumer NoticeBack in compliance
  9. 2023-02-24Public NoticePN Violation for NPDWR ViolationOpen
  10. 2023-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  11. 2023-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  12. 2023-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  13. 2022-10-05Lead and Copper RuleLead Consumer NoticeBack in compliance
  14. 2022-05-18Public NoticePN Violation for NPDWR ViolationBack in compliance
  15. 2022-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  16. 2022-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  17. 2022-04-01Di(2-ethylhexyl) phthalateMonitoring, RegularBack in compliance
  18. 2022-01-01StyreneMonitoring, RegularBack in compliance
  19. 2022-01-01EthylbenzeneMonitoring, RegularBack in compliance
  20. 2022-01-01TolueneMonitoring, RegularBack in compliance
  21. 2022-01-01BenzeneMonitoring, RegularBack in compliance
  22. 2022-01-01ChlorobenzeneMonitoring, RegularBack in compliance
  23. 2022-01-01TetrachloroethyleneMonitoring, RegularBack in compliance
  24. 2022-01-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  25. 2022-01-01TrichloroethyleneMonitoring, RegularBack in compliance
Show the other 60 entries
  1. 2022-01-011,2-DichloropropaneMonitoring, RegularBack in compliance
  2. 2022-01-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  3. 2022-01-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  4. 2022-01-011,2-DichloroethaneMonitoring, RegularBack in compliance
  5. 2022-01-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  6. 2022-01-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  7. 2022-01-01Vinyl chlorideMonitoring, RegularBack in compliance
  8. 2022-01-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  9. 2022-01-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  10. 2022-01-01DichloromethaneMonitoring, RegularBack in compliance
  11. 2022-01-01Xylenes, TotalMonitoring, RegularBack in compliance
  12. 2022-01-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  13. 2022-01-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  14. 2022-01-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  15. 2022-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  16. 2022-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  17. 2022-01-01Di(2-ethylhexyl) phthalateMonitoring, RegularBack in compliance
  18. 2021-10-01Di(2-ethylhexyl) phthalateMonitoring, RegularBack in compliance
  19. 2021-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  20. 2021-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  21. 2020-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  22. 2020-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  23. 2019-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  24. 2019-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  25. 2019-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  26. 2017-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  27. 2017-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  28. 2016-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  29. 2016-01-01StyreneMonitoring, RegularBack in compliance
  30. 2016-01-01EthylbenzeneMonitoring, RegularBack in compliance
  31. 2016-01-01TolueneMonitoring, RegularBack in compliance
  32. 2016-01-01BenzeneMonitoring, RegularBack in compliance
  33. 2016-01-01ChlorobenzeneMonitoring, RegularBack in compliance
  34. 2016-01-01TetrachloroethyleneMonitoring, RegularBack in compliance
  35. 2016-01-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  36. 2016-01-01TrichloroethyleneMonitoring, RegularBack in compliance
  37. 2016-01-011,2-DichloropropaneMonitoring, RegularBack in compliance
  38. 2016-01-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  39. 2016-01-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  40. 2016-01-011,2-DichloroethaneMonitoring, RegularBack in compliance
  41. 2016-01-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  42. 2016-01-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  43. 2016-01-01Vinyl chlorideMonitoring, RegularBack in compliance
  44. 2016-01-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  45. 2016-01-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  46. 2016-01-01DichloromethaneMonitoring, RegularBack in compliance
  47. 2016-01-01Xylenes, TotalMonitoring, RegularBack in compliance
  48. 2016-01-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  49. 2016-01-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  50. 2014-01-01ArsenicMonitoring, RegularBack in compliance
  51. 2013-07-05E. ColiMonitoring, Source Water (GWR)Back in compliance
  52. 2011-01-01SeleniumMonitoring, RegularPeriod ended · no return to compliance on file
  53. 2011-01-01Thallium, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  54. 2011-01-01Beryllium, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  55. 2011-01-01Antimony, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  56. 2011-01-01MercuryMonitoring, RegularPeriod ended · no return to compliance on file
  57. 2011-01-01CyanideMonitoring, RegularPeriod ended · no return to compliance on file
  58. 2011-01-01ChromiumMonitoring, RegularPeriod ended · no return to compliance on file
  59. 2011-01-01CadmiumMonitoring, RegularPeriod ended · no return to compliance on file
  60. 2011-01-01BariumMonitoring, RegularPeriod ended · no return to compliance on file

System details

Population served250
Service connections1
Water sourceGroundwater
System typeNon-Transient Non-Community
OwnerLocal Government
StatusActive
CityEarlville
EPA ZIP on file60518

Areas served

  • Lasalle County

Reading this record

Harding Grade School is a non-transient non-community that draws from groundwater and serves about 250 people in Earlville, 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.