Leon Water Supply
Published drinking-water records and contacts for Leon Water Supply. System IA2742076. Review sources and dates; not a real-time water assessment.
- System ID
- IA2742076
- State or territory
- IA
- Published population served
- 1830
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 15 — 1993-07-01 – 2024-12-31
- Iowa DNR published PFAS sampling: 6 — 2026-08-05 – 2026-08-05
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) | 0.003 mg/L | 2022-01-01 – 2024-12-31 | 2026Q3 |
| Lead (PB90) | 0.011 mg/L | 2019-01-01 – 2021-12-31 | 2026Q3 |
| Lead (PB90) | 0.005 mg/L | 2016-01-01 – 2018-12-31 | 2026Q3 |
| Lead (PB90) | 0.007 mg/L | 2013-01-01 – 2015-12-31 | 2026Q3 |
| Lead (PB90) | 0.009 mg/L | 2010-01-01 – 2012-12-31 | 2026Q3 |
| Lead (PB90) | 0.011 mg/L | 2007-01-01 – 2009-12-31 | 2026Q3 |
| Lead (PB90) | 0.013 mg/L | 2004-01-01 – 2006-12-31 | 2026Q3 |
| Lead (PB90) | 0.006 mg/L | 2001-01-01 – 2003-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| HFPO-DA | < 2.0 ng/L | 2026-08-05 | FRM LITTLE RIVER AFTR TRMNT (FINISHED DRINKING WATER) / Iowa DNR published PFAS sampling |
| PFBS | < 2.0 ng/L | 2026-08-05 | FRM LITTLE RIVER AFTR TRMNT (FINISHED DRINKING WATER) / Iowa DNR published PFAS sampling |
| PFHxS | < 2.0 ng/L | 2026-08-05 | FRM LITTLE RIVER AFTR TRMNT (FINISHED DRINKING WATER) / Iowa DNR published PFAS sampling |
| PFNA | < 2.0 ng/L | 2026-08-05 | FRM LITTLE RIVER AFTR TRMNT (FINISHED DRINKING WATER) / Iowa DNR published PFAS sampling |
| PFOA | < 2.0 ng/L | 2026-08-05 | FRM LITTLE RIVER AFTR TRMNT (FINISHED DRINKING WATER) / Iowa DNR published PFAS sampling |
| PFOS | < 2.0 ng/L | 2026-08-05 | FRM LITTLE RIVER AFTR TRMNT (FINISHED DRINKING WATER) / Iowa DNR published PFAS sampling |
State sampling points can include untreated water. Publisher qualifiers and units are retained; consult the full source notes before interpreting a record.
Download state records with source notes (CSV)
Published compliance history
18 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 |
|---|---|---|---|---|
| Surface Water Treatment Rule / Treatment Technique (SWTR and GWR) | 2023-07-01 – 2023-07-31 | Resolved | Yes | 2026Q3 |
| Surface Water Treatment Rule / Treatment Technique (SWTR and GWR) | 2022-09-01 – 2022-09-30 | Resolved | Yes | 2026Q3 |
| Surface Water Treatment Rule / Treatment Technique (SWTR and GWR) | 2022-08-01 – 2022-08-31 | Resolved | Yes | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2022-02-01 – 2022-02-28 | Resolved | No | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2022-02-01 – 2022-02-28 | Resolved | No | 2026Q3 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2018-07-01 – 2018-09-30 | Resolved | No | 2026Q3 |
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Average | 1985-10-01 – 1986-09-30 | Archived | Yes | 2026Q3 |
| Inorganic Chemicals / Maximum Contaminant Level Violation, Single Sample | 1984-10-01 – 1985-09-30 | Archived | Yes | 2026Q3 |
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Average | 1984-10-01 – 1985-09-30 | Archived | Yes | 2026Q3 |
| Inorganic Chemicals / Maximum Contaminant Level Violation, Single Sample | 1983-10-01 – 1984-09-30 | Archived | Yes | 2026Q3 |
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Single Sample | 1983-10-01 – 1984-09-30 | Archived | Yes | 2026Q3 |
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Single Sample | 1983-10-01 – 1984-09-30 | Archived | Yes | 2026Q3 |
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Average | 1979-11-09 – 1980-11-08 | Archived | Yes | 2026Q3 |
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Average | 1979-11-09 – 1980-11-08 | Archived | Yes | 2026Q3 |
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Average | 1979-11-09 – 1980-10-08 | Archived | Yes | 2026Q3 |
| Inorganic Chemicals / Maximum Contaminant Level Violation, Average | 1979-01-22 – 1980-10-21 | Archived | Yes | 2026Q3 |
| Inorganic Chemicals / Maximum Contaminant Level Violation, Average | 1978-10-23 – 1979-10-22 | Archived | Yes | 2026Q3 |
| Inorganic Chemicals / Maximum Contaminant Level Violation, Average | 1978-10-23 – 1979-10-22 | Archived | Yes | 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
- Iowa DNR published PFAS sampling — last successful check: 2026-10-14
Administrative contact (EPA filing)
Leon Water Supply: 641-446-6221
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.