Non-Transient Non-Community · PWSID IL3156836

Jw Marriot Hotel

Serves 700 peopleSurface Water PurchasedOwner: PrivateChicago, 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 2014: 49 violations. 2 treatment lapses · 39 missed or late tests · 8 notices or reports. Most recent began 2025-08-30.

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
2Treatment lapse1 open
39Missed or late test2 open
8Notice or report8 open

More violations on record than 95% 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

200520102014 · Missed or late test: 12015 · Missed or late test: 22015 · Missed or late test: 220152017 · Missed or late test: 32017 · Missed or late test: 32017 · Missed or late test: 32018 · Missed or late test: 22018 · Missed or late test: 22019 · Missed or late test: 22019 · Missed or late test: 22020 · Missed or late test: 32020 · Missed or late test: 32020 · Missed or late test: 320202021 · Missed or late test: 32021 · Missed or late test: 32021 · Missed or late test: 32022 · Treatment lapse: 12022 · Missed or late test: 32022 · Missed or late test: 32022 · Missed or late test: 32023 · Missed or late test: 62023 · Missed or late test: 62023 · Missed or late test: 62023 · Missed or late test: 62023 · Missed or late test: 62023 · Missed or late test: 62023 · Notice or report: 12024 · Treatment lapse: 12024 · Missed or late test: 82024 · Missed or late test: 82024 · Missed or late test: 82024 · Missed or late test: 82024 · Missed or late test: 82024 · Missed or late test: 82024 · Missed or late test: 82024 · Missed or late test: 82024 · Notice or report: 22024 · Notice or report: 22025 · Missed or late test: 62025 · Missed or late test: 62025 · Missed or late test: 62025 · Missed or late test: 62025 · Missed or late test: 62025 · Missed or late test: 62025 · Notice or report: 52025 · Notice or report: 52025 · Notice or report: 52025 · Notice or report: 52025 · Notice or report: 52025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
4% treatment lapse · 280% missed or late test · 3916% notice or report · 8

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 3 results on file · action level 15 ppb

0 ppb
0 ppb
0 ppb

Open now (11)

  1. 2025-08-30Public NoticePN Violation for NPDWR ViolationOpen
  2. 2025-05-31Public NoticePN Violation for NPDWR ViolationOpen
  3. 2025-04-05Public NoticePN Violation for NPDWR ViolationOpen
  4. 2025-03-01Public Notice ×2PN Violation for NPDWR ViolationOpen
  5. 2024-10-17Lead service line inventoryTTOpen
  6. 2024-10-17Lead service line inventoryRPTOpen
  7. 2024-08-15Public NoticePN Violation for NPDWR ViolationOpen
  8. 2023-11-28Lead and Copper RuleLead Consumer NoticeOpen
  9. 2023-02-24Public NoticePN Violation for NPDWR ViolationOpen
  10. 2023-02-15Lead and Copper RuleLead Consumer NoticeOpen

Every violation on record

  1. 2025-08-30Public NoticePN Violation for NPDWR ViolationOpen
  2. 2025-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  3. 2025-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  4. 2025-05-31Public NoticePN Violation for NPDWR ViolationOpen
  5. 2025-04-05Public NoticePN Violation for NPDWR ViolationOpen
  6. 2025-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  7. 2025-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  8. 2025-03-01Public Notice ×2PN Violation for NPDWR ViolationOpen
  9. 2025-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  10. 2025-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  11. 2024-10-17Lead service line inventoryTTOpen
  12. 2024-10-17Lead service line inventoryRPTOpen
  13. 2024-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  14. 2024-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  15. 2024-08-15Public NoticePN Violation for NPDWR ViolationOpen
  16. 2024-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  17. 2024-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  18. 2024-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  19. 2024-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  20. 2024-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  21. 2024-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  22. 2023-11-28Lead and Copper RuleLead Consumer NoticeOpen
  23. 2023-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  24. 2023-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  25. 2023-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
Show the other 23 entries
  1. 2023-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  2. 2023-02-24Public NoticePN Violation for NPDWR ViolationOpen
  3. 2023-02-15Lead and Copper RuleLead Consumer NoticeOpen
  4. 2022-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  5. 2022-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  6. 2022-01-01Revised Total Coliform RuleMONBack in compliance
  7. 2022-01-01DBP Stage 1Treatment Technique No Certif. OperatorBack in compliance
  8. 2021-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  9. 2021-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  10. 2021-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  11. 2020-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  12. 2020-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  13. 2020-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  14. 2019-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  15. 2019-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  16. 2018-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  17. 2018-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  18. 2017-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  19. 2017-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  20. 2017-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  21. 2015-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  22. 2015-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  23. 2014-01-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance

System details

Population served700
Service connections1
Water sourceSurface Water Purchased
System typeNon-Transient Non-Community
OwnerPrivate
StatusActive
CityChicago
EPA ZIP on file60604

Areas served

  • Cook County

Reading this record

Jw Marriot Hotel is a non-transient non-community that draws from surface water purchased and serves about 700 people in Chicago, 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.