No health-based violations on EPA record since 2016.
Serves about 3,865 people (1,546 connections) with groundwater bought from Madison Water Department and Jennings Water, Inc..
From EPA's record for IN5240004. PurityMap is independent of Dupont Water Company.
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No health-based violations in the last 10 years, from EPA's SDWIS compliance database.
EPA required this system to test for 30 unregulated and emerging contaminants, in June 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorobutanesulfonic acid (PFBS) | 4.5 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Within the referenced health-based guidance value | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| 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 | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| 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 | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| 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 | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| 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 | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| 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 | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| 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 | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-04 | UCMR5 Analytical Results: DUPONT WATER COMPANY (IN5240004) |
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.
Get PurityMap updates about this water system.
Follow this water →Dupont Water Company's phone number on EPA record is 812-592-7957. Its mailing address is 8975 West 1000 North, COMMISKEY, IN 47227.
According to EPA's record, Dupont Water Company uses groundwater bought from Madison Water Department and Jennings Water, Inc..
No health-based violations on EPA record since 2016. EPA also lists 14 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Dupont Water Company's latest lead and copper round, which ended in December 2025, was 3.26 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Dupont Water Company. Its phone number on EPA record is 812-592-7957. Its mailing address on EPA record is 8975 West 1000 North, COMMISKEY, IN 47227. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.