No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting April 2023.
Serves about 3,706 people (1,372 connections) with groundwater from its own wells.
From EPA's record for WI1140142. PurityMap is independent of Waupun Correctional Inst.
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6 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From April 2023 | Combined radium-226/228 | 5.65 pCi/L | 5 pCi/L | Archived |
| From October 2020 | Combined radium-226/228 | 5.52 pCi/L | 5 pCi/L | Archived |
| From July 2020 | Combined radium-226/228 | 5.52 pCi/L | 5 pCi/L | Archived |
| From April 2020 | Combined radium-226/228 | 5.92 pCi/L | 5 pCi/L | Archived |
| From January 2020 | Combined radium-226/228 | 5.9 pCi/L | 5 pCi/L | Archived |
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From October 2019 | Combined radium-226/228 | 5.9225 pCi/L | 5 pCi/L | Archived |
EPA required this system to test for 30 unregulated and emerging contaminants, from April 2023 to October 2023.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| Lithium | < 9 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| Perfluorobutanesulfonic acid (PFBS) | < 3 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-17 to 2023-10-11 | UCMR5 Analytical Results: WAUPUN CORRECTIONAL INST (WI1140142) |
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
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Screening: quick check, not lab-grade
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
Turnaround: 5 minutes
What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
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Follow this water →According to EPA's record, Waupun Correctional Inst uses groundwater from its own wells.
EPA's record shows 6 health-based violations for Waupun Correctional Inst in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. The latest legal-limit breach on record was in the period starting April 2023. EPA also lists 4 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Waupun Correctional Inst's latest lead and copper round, which ended in June 2025, was 0.87 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Waupun Correctional Inst. Its mailing address on EPA record is 3099 E WASHINGTON AVE, MADISON, WI 53704. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.