Non-Transient Non-Community · PWSID IL3109009

Deer Park School

Serves 155 peopleGroundwaterOwner: Public/PrivateOttawa, IllinoisServes a school or daycare
Nothing open right now.

On record since 2009: 70 violations. 70 missed or late tests. Most recent began 2023-03-12.

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
0Treatment lapse
70Missed or late test
0Notice or report

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

20052009 · Missed or late test: 12010 · Missed or late test: 120102011 · Missed or late test: 112011 · Missed or late test: 112011 · Missed or late test: 112012 · Missed or late test: 12014 · Missed or late test: 12015 · Missed or late test: 120152016 · Missed or late test: 12017 · Missed or late test: 12018 · Missed or late test: 12019 · Missed or late test: 12020 · Missed or late test: 482020 · Missed or late test: 482020 · Missed or late test: 482020 · Missed or late test: 482020 · Missed or late test: 482020 · Missed or late test: 482020 · Missed or late test: 482020 · Missed or late test: 482020 · Missed or late test: 482020 · Missed or late test: 482020 · Missed or late test: 482020 · Missed or late test: 4820202022 · Missed or late test: 12023 · Missed or late test: 12025
One square ≈ 4 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
100% missed or late test · 70

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

14.5 ppb
12.4 ppb
12.4 ppb
9.9 ppb
5.9 ppb
5.9 ppb
3.5 ppb

Every violation on record

  1. 2023-03-12Lead and Copper RuleLead Consumer NoticeBack in compliance
  2. 2022-03-27Lead and Copper RuleLead Consumer NoticeBack in compliance
  3. 2020-07-01StyreneMonitoring, RegularBack in compliance
  4. 2020-07-01EthylbenzeneMonitoring, RegularBack in compliance
  5. 2020-07-01TolueneMonitoring, RegularBack in compliance
  6. 2020-07-01BenzeneMonitoring, RegularBack in compliance
  7. 2020-07-01ChlorobenzeneMonitoring, RegularBack in compliance
  8. 2020-07-01TetrachloroethyleneMonitoring, RegularBack in compliance
  9. 2020-07-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  10. 2020-07-01TrichloroethyleneMonitoring, RegularBack in compliance
  11. 2020-07-011,2-DichloropropaneMonitoring, RegularBack in compliance
  12. 2020-07-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  13. 2020-07-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  14. 2020-07-011,2-DichloroethaneMonitoring, RegularBack in compliance
  15. 2020-07-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  16. 2020-07-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  17. 2020-07-01Vinyl chlorideMonitoring, RegularBack in compliance
  18. 2020-07-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  19. 2020-07-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  20. 2020-07-01DichloromethaneMonitoring, RegularBack in compliance
  21. 2020-07-01Xylenes, TotalMonitoring, RegularBack in compliance
  22. 2020-07-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  23. 2020-07-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  24. 2020-04-01StyreneMonitoring, RegularBack in compliance
  25. 2020-04-01EthylbenzeneMonitoring, RegularBack in compliance
Show the other 45 entries
  1. 2020-04-01TolueneMonitoring, RegularBack in compliance
  2. 2020-04-01BenzeneMonitoring, RegularBack in compliance
  3. 2020-04-01ChlorobenzeneMonitoring, RegularBack in compliance
  4. 2020-04-01TetrachloroethyleneMonitoring, RegularBack in compliance
  5. 2020-04-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  6. 2020-04-01TrichloroethyleneMonitoring, RegularBack in compliance
  7. 2020-04-011,2-DichloropropaneMonitoring, RegularBack in compliance
  8. 2020-04-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  9. 2020-04-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  10. 2020-04-011,2-DichloroethaneMonitoring, RegularBack in compliance
  11. 2020-04-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  12. 2020-04-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  13. 2020-04-01Vinyl chlorideMonitoring, RegularBack in compliance
  14. 2020-04-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  15. 2020-04-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  16. 2020-04-01DichloromethaneMonitoring, RegularBack in compliance
  17. 2020-04-01Xylenes, TotalMonitoring, RegularBack in compliance
  18. 2020-04-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  19. 2020-04-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  20. 2020-01-012, 4, 5-TpMonitoring, RegularBack in compliance
  21. 2020-01-01PentachlorophenolMonitoring, RegularBack in compliance
  22. 2020-01-01CarbofuranMonitoring, RegularBack in compliance
  23. 2020-01-01PicloramMonitoring, RegularBack in compliance
  24. 2020-01-01OxamylMonitoring, RegularBack in compliance
  25. 2020-01-012, 4-DMonitoring, RegularBack in compliance
  26. 2019-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  27. 2018-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  28. 2017-01-01ArsenicMonitoring, RegularBack in compliance
  29. 2016-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  30. 2015-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  31. 2014-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  32. 2012-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  33. 2011-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  34. 2011-01-01SeleniumMonitoring, RegularBack in compliance
  35. 2011-01-01Thallium, TotalMonitoring, RegularBack in compliance
  36. 2011-01-01Beryllium, TotalMonitoring, RegularBack in compliance
  37. 2011-01-01Antimony, TotalMonitoring, RegularBack in compliance
  38. 2011-01-01MercuryMonitoring, RegularBack in compliance
  39. 2011-01-01CyanideMonitoring, RegularBack in compliance
  40. 2011-01-01ChromiumMonitoring, RegularBack in compliance
  41. 2011-01-01CadmiumMonitoring, RegularBack in compliance
  42. 2011-01-01BariumMonitoring, RegularBack in compliance
  43. 2011-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  44. 2010-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  45. 2009-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance

System details

Population served155
Service connections1
Water sourceGroundwater
System typeNon-Transient Non-Community
OwnerPublic/Private
StatusActive
CityOttawa
EPA ZIP on file61350

Areas served

  • Lasalle County

Reading this record

Deer Park School is a non-transient non-community that draws from groundwater and serves about 155 people in Ottawa, 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.