Winchester School
Published drinking-water records and contacts for Winchester School. System WI4710611. Review sources and dates; not a real-time water assessment.
- System ID
- WI4710611
- State or territory
- WI
- Published population served
- 35
- System type (source code)
- NTNCWS
Published records and dates
- Lead and copper monitoring summaries: 21 — 1993-07-01 – 2025-09-30
- Wisconsin DNR public-system PFAS records: 36 — 2026-04-15 – 2026-09-23
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) | 0.00675 mg/L | 2025-09-01 – 2025-09-30 | 2026Q3 |
| Lead (PB90) | 0.004 mg/L | 2022-09-01 – 2022-09-30 | 2026Q3 |
| Lead (PB90) | 0.0054 mg/L | 2021-09-01 – 2021-09-30 | 2026Q3 |
| Lead (PB90) | 0.00655 mg/L | 2020-07-01 – 2020-12-31 | 2026Q3 |
| Lead (PB90) | 0.00675 mg/L | 2020-01-01 – 2020-06-30 | 2026Q3 |
| Lead (PB90) | 0.02035 mg/L | 2019-09-01 – 2019-09-30 | 2026Q3 |
| Lead (PB90) | 0.01005 mg/L | 2016-09-01 – 2016-09-30 | 2026Q3 |
| Lead (PB90) | 0.00205 mg/L | 2010-01-01 – 2010-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| 9CL-PF3ONS | < 0.27 ng/L | 2026-09-23 | Entry Point / Wisconsin DNR public-system PFAS records |
| 11CL-PF3OUDS | < 0.31 ng/L | 2026-09-23 | Entry Point / Wisconsin DNR public-system PFAS records |
| ADONA | < 0.47 ng/L | 2026-09-23 | Entry Point / Wisconsin DNR public-system PFAS records |
| HFPO-DA | < 0.00029 µg/L | 2026-09-23 | Entry Point / Wisconsin DNR public-system PFAS records |
| NETFOSAA | < 0.63 ng/L | 2026-09-23 | Entry Point / Wisconsin DNR public-system PFAS records |
| NMEFOSAA | < 0.21 ng/L | 2026-09-23 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFOA | < 0.24 ng/L | 2026-09-23 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFOS | 1.2 Between LOD and LOQ ng/L | 2026-09-23 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFTrDA | < 0.58 ng/L | 2026-09-23 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFTA | < 0.63 ng/L | 2026-09-23 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFBS | 1.3 Between LOD and LOQ ng/L | 2026-09-23 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFHXS | 0.52 Between LOD and LOQ ng/L | 2026-09-23 | Entry Point / Wisconsin DNR public-system PFAS records |
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
0 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.
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
- Wisconsin DNR public-system PFAS records — last successful check: 2026-10-10
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.