Non-Transient Non-Community · PWSID IL3142018

River Ridge School

Serves 30 peopleGroundwaterOwner: Local GovernmentHanover, IllinoisServes a school or daycare
Nothing open right now.

On record since 2006: 62 violations. 1 treatment lapse · 59 missed or late tests · 2 notices or reports. Most recent began 2025-04-12.

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
59Missed or late test
2Notice or report

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

20052006 · Missed or late test: 220102012 · Missed or late test: 120152017 · Missed or late test: 312017 · Missed or late test: 312017 · Missed or late test: 312017 · Missed or late test: 312017 · Missed or late test: 312017 · Missed or late test: 312017 · Missed or late test: 312017 · Missed or late test: 312017 · Missed or late test: 312017 · Missed or late test: 312017 · Missed or late test: 3120202021 · Missed or late test: 12022 · Missed or late test: 12024 · Treatment lapse: 12024 · Missed or late test: 222024 · Missed or late test: 222024 · Missed or late test: 222024 · Missed or late test: 222024 · Missed or late test: 222024 · Missed or late test: 222024 · Missed or late test: 222024 · Missed or late test: 222024 · Notice or report: 12025 · Missed or late test: 12025 · Notice or report: 12025
One square ≈ 3 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
2% treatment lapse · 195% missed or late test · 593% notice or report · 2

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

1.9 ppb
1.2 ppb
0.8 ppb
0 ppb

Every violation on record

  1. 2025-04-12Lead and Copper RuleLead Consumer NoticeBack in compliance
  2. 2025-04-05Public NoticePN Violation for NPDWR ViolationBack in compliance
  3. 2024-10-17Lead service line inventoryTTBack in compliance
  4. 2024-10-17Lead service line inventoryRPTBack in compliance
  5. 2024-01-01StyreneMonitoring, RegularPeriod ended · no return to compliance on file
  6. 2024-01-01EthylbenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  7. 2024-01-01TolueneMonitoring, RegularPeriod ended · no return to compliance on file
  8. 2024-01-01BenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  9. 2024-01-01ChlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  10. 2024-01-01TetrachloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  11. 2024-01-011,1,2-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  12. 2024-01-01TrichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  13. 2024-01-011,2-DichloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
  14. 2024-01-01Carbon tetrachlorideMonitoring, RegularPeriod ended · no return to compliance on file
  15. 2024-01-011,1,1-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  16. 2024-01-011,2-DichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  17. 2024-01-01trans-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  18. 2024-01-011,1-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  19. 2024-01-01Vinyl chlorideMonitoring, RegularPeriod ended · no return to compliance on file
  20. 2024-01-01p-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  21. 2024-01-01o-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  22. 2024-01-01DichloromethaneMonitoring, RegularPeriod ended · no return to compliance on file
  23. 2024-01-01Xylenes, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  24. 2024-01-01cis-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  25. 2024-01-011,2,4-TrichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
Show the other 37 entries
  1. 2024-01-01NitrateMonitoring, RegularPeriod ended · no return to compliance on file
  2. 2022-04-01HeptachlorMonitoring, RegularBack in compliance
  3. 2021-07-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  4. 2017-01-01ArsenicMonitoring, RegularPeriod ended · no return to compliance on file
  5. 2017-01-01SeleniumMonitoring, RegularPeriod ended · no return to compliance on file
  6. 2017-01-01Thallium, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  7. 2017-01-01Beryllium, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  8. 2017-01-01Antimony, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  9. 2017-01-01MercuryMonitoring, RegularPeriod ended · no return to compliance on file
  10. 2017-01-01CyanideMonitoring, RegularPeriod ended · no return to compliance on file
  11. 2017-01-01ChromiumMonitoring, RegularPeriod ended · no return to compliance on file
  12. 2017-01-01CadmiumMonitoring, RegularPeriod ended · no return to compliance on file
  13. 2017-01-01BariumMonitoring, RegularPeriod ended · no return to compliance on file
  14. 2017-01-01StyreneMonitoring, RegularBack in compliance
  15. 2017-01-01EthylbenzeneMonitoring, RegularBack in compliance
  16. 2017-01-01TolueneMonitoring, RegularBack in compliance
  17. 2017-01-01BenzeneMonitoring, RegularBack in compliance
  18. 2017-01-01ChlorobenzeneMonitoring, RegularBack in compliance
  19. 2017-01-01TetrachloroethyleneMonitoring, RegularBack in compliance
  20. 2017-01-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  21. 2017-01-01TrichloroethyleneMonitoring, RegularBack in compliance
  22. 2017-01-011,2-DichloropropaneMonitoring, RegularBack in compliance
  23. 2017-01-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  24. 2017-01-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  25. 2017-01-011,2-DichloroethaneMonitoring, RegularBack in compliance
  26. 2017-01-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  27. 2017-01-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  28. 2017-01-01Vinyl chlorideMonitoring, RegularBack in compliance
  29. 2017-01-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  30. 2017-01-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  31. 2017-01-01DichloromethaneMonitoring, RegularBack in compliance
  32. 2017-01-01Xylenes, TotalMonitoring, RegularBack in compliance
  33. 2017-01-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  34. 2017-01-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  35. 2012-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  36. 2006-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  37. 2006-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance

System details

Population served30
Service connections1
Water sourceGroundwater
System typeNon-Transient Non-Community
OwnerLocal Government
StatusActive
CityHanover
EPA ZIP on file61041

Areas served

  • Jo Daviess County

Reading this record

River Ridge School is a non-transient non-community that draws from groundwater and serves about 30 people in Hanover, 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.