Sheldon Water Utility
Published drinking-water records and contacts for Sheldon Water Utility. System WI8550278. Review sources and dates; not a real-time water assessment.
- System ID
- WI8550278
- State or territory
- WI
- Published population served
- 265
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 28 — 1993-07-01 – 2023-09-30
- Wisconsin DNR public-system PFAS records: 108 — 2023-07-10 – 2026-05-06
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) | 0.00285 mg/L | 2023-06-01 – 2023-09-30 | 2026Q3 |
| Lead (PB90) | 0.0017 mg/L | 2020-07-01 – 2020-10-31 | 2026Q3 |
| Lead (PB90) | 0.003 mg/L | 2017-06-01 – 2017-09-30 | 2026Q3 |
| Lead (PB90) | 0.005 mg/L | 2014-06-01 – 2014-09-30 | 2026Q3 |
| Lead (PB90) | 0.004 mg/L | 2011-06-01 – 2011-09-30 | 2026Q3 |
| Lead (PB90) | 0.0025 mg/L | 2009-01-01 – 2009-12-31 | 2026Q3 |
| Lead (PB90) | 0.003 mg/L | 2008-01-01 – 2008-12-31 | 2026Q3 |
| Lead (PB90) | 0.002 mg/L | 2007-07-01 – 2007-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| PFDOA | < 0.64 ng/L | 2026-05-06 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFHPA | < 0.55 ng/L | 2026-05-06 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFHXA | 0.58 Between LOD and LOQ ng/L | 2026-05-06 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFHXS | 9.9 ng/L | 2026-05-06 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFNA | < 0.53 ng/L | 2026-05-06 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFOA | < 0.48 ng/L | 2026-05-06 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFOS | < 0.49 ng/L | 2026-05-06 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFTA | < 0.55 ng/L | 2026-05-06 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFTrDA | < 0.55 ng/L | 2026-05-06 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFUNA | < 0.53 ng/L | 2026-05-06 | Entry Point / Wisconsin DNR public-system PFAS records |
| 11CL-PF3OUDS | < 0.31 ng/L | 2026-05-06 | Entry Point / Wisconsin DNR public-system PFAS records |
| 9CL-PF3ONS | < 0.48 ng/L | 2026-05-06 | 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
76 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 |
|---|---|---|---|---|
| Ground Water Rule / Failure To Address Deficiency | 2026-06-02 – — | Resolved | Yes | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2025-09-01 – 2025-09-30 | Resolved | No | 2026Q3 |
| Ground Water Rule / Failure To Address Deficiency | 2025-07-02 – — | Resolved | Yes | 2026Q3 |
| Public Notice Rule and Revised PN Rule / Public Notification Violation for NPDWR Violation | 2025-07-02 – — | Resolved | No | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2025-05-01 – 2025-05-31 | Resolved | No | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2025-01-01 – 2025-03-31 | Resolved | No | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2025-01-01 – 2025-03-31 | Resolved | No | 2026Q3 |
| Revised Total Coliform Rule / Treatment Technique, Level 1 Assessment (RTCR) | 2024-09-21 – — | Resolved | Yes | 2026Q3 |
| Revised Total Coliform Rule / Reporting, Assessment Forms (RTCR) | 2024-09-21 – — | Resolved | No | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2024-07-01 – 2024-09-30 | Resolved | No | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2024-07-01 – 2024-09-30 | Resolved | No | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2024-06-01 – 2024-06-30 | Resolved | No | 2026Q3 |
| Public Notice Rule and Revised PN Rule / Public Notification Violation without NPDWR Violation | 2024-03-21 – — | Resolved | No | 2026Q3 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule / Treatment Technique No Certif. Operator | 2023-11-02 – — | Resolved | Yes | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2023-10-01 – 2023-12-31 | Resolved | No | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2023-10-01 – 2023-12-31 | Resolved | No | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2023-07-01 – 2023-09-30 | Resolved | No | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2023-07-01 – 2023-09-30 | Resolved | No | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2023-07-01 – 2023-07-31 | Resolved | No | 2026Q3 |
| Nitrate Rule / Monitoring, Regular | 2023-04-01 – 2023-06-30 | Resolved | 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
- 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.