Royalton
Published drinking-water records and contacts for Royalton. System IL0555030. Review sources and dates; not a real-time water assessment.
- System ID
- IL0555030
- State or territory
- IL
- Published population served
- 1118
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 15 — 1993-04-01 – 2026-06-30
Missing records here do not mean the provider did not test. Published records are not a real-time assessment of your tap water.
Published testing results
Selected recent records are shown below. Different sampling locations and dates are not interchangeable. These excerpts are not a complete testing history.
“<” means below the stated reporting limit, not zero. A reported measurement alone is not a safety verdict. Read an example
Lead and copper: 90th-percentile summaries
These describe a monitoring period across sampled locations, not the result at your home. How to read the 90th percentile
| Substance | Published 90th percentile | Monitoring period | Source quarter |
|---|---|---|---|
| Lead (PB90) | 0 mg/L | 2026-01-01 – 2026-06-30 | 2026Q3 |
| Lead (PB90) | 0.0026 mg/L | 2025-07-01 – 2025-12-31 | 2026Q3 |
| Lead (PB90) | 0.00219 mg/L | 2019-01-01 – 2021-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2016-01-01 – 2018-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2013-01-01 – 2015-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2010-01-01 – 2012-12-31 | 2026Q3 |
| Lead (PB90) | 0.0109 mg/L | 2008-01-01 – 2010-12-31 | 2026Q3 |
| Lead (PB90) | 0.000649 mg/L | 2005-01-01 – 2007-12-31 | 2026Q3 |
Published compliance history
26 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.
| Rule / record | Period | Recorded status | Health-based (EPA classification) | Source quarter |
|---|---|---|---|---|
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2026-04-01 – 2026-06-30 | Archived | No | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2026-04-01 – 2026-06-30 | Archived | No | 2026Q3 |
| Lead and Copper Rule / Follow-up Or Routine LCR Tap M/R | 2026-01-01 – — | Resolved | No | 2026Q3 |
| Lead and Copper Rule Revisions / Notification, Known or Potential LSL | 2025-07-02 – — | Resolved | No | 2026Q3 |
| Lead and Copper Rule / Follow-up Or Routine LCR Tap M/R | 2025-07-01 – — | Resolved | No | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2025-07-01 – 2025-09-30 | Resolved | No | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2025-07-01 – 2025-09-30 | Resolved | No | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2025-05-01 – 2025-05-31 | Resolved | No | 2026Q3 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2025-05-01 – 2025-05-31 | Resolved | No | 2026Q3 |
| Lead and Copper Rule / Follow-up Or Routine LCR Tap M/R | 2024-10-01 – — | Resolved | No | 2026Q3 |
| Public Notice Rule and Revised PN Rule / Public Notification Violation for NPDWR Violation | 2024-07-11 – — | Resolved | No | 2026Q3 |
| Public Notice Rule and Revised PN Rule / Public Notification Violation for NPDWR Violation | 2024-07-11 – — | Resolved | No | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2023-04-01 – 2023-06-30 | Resolved | No | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2023-04-01 – 2023-06-30 | Resolved | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Minor (TCR) | 1996-06-01 – 1996-06-30 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Minor (TCR) | 1992-07-01 – 1992-07-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Minor (TCR) | 1991-05-01 – 1991-05-31 | Archived | No | 2026Q3 |
| Arsenic Rule / Monitoring, Regular | 1979-06-25 – 1980-06-24 | Archived | No | 2026Q3 |
| Inorganic Chemicals / Monitoring, Regular | 1979-06-25 – 1980-06-24 | Archived | No | 2026Q3 |
| Inorganic Chemicals / Monitoring, Regular | 1979-06-25 – 1980-06-24 | Archived | No | 2026Q3 |
Source dates and refresh checks
A refresh check is not a sample date. Publication periods, sample dates and checks are shown separately.
- EPA SDWIS lead/copper summaries and service areas — source period: — – —; last checked: 2026-10-17
- EPA SDWIS contacts and compliance records — source period: — – —; last checked: 2026-10-17
- EPA UCMR 5 sample results — source period: 2023-01-03 – 2026-06-17; last checked: 2026-10-17
Administrative contact (EPA filing)
Young, Lisa: 618-984-4493
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.