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Community Water System · PWS IN5240004

Dupont Water Company

Commiskey, Indiana 47227 - drinking water served from groundwater sources to 3,865 people, tracked in EPA SDWIS and UCMR5.

3,865
People served
115
EPA violations
0
Health-based
1 PFAS
UCMR5 result

The verdict

EPA records 115 drinking-water violations at Dupont Water Company - above the Indiana per-system average, and UCMR5 testing detected 1 PFAS compound.

115
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
3,865
People served by this system
1
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Dupont Water Company

Dupont Water Company is a local-owned community water system that delivers drinking water to 3,865 residents in Commiskey, Indiana (Jennings County) through 1,546 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 115 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 46 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Consumer Confidence Rule, recorded in 66 violations (Other). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 4.5 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across Indiana, EPA tracks 3,967 public water systems serving 5,774,616 people, with 352,710 cumulative violations and 35,932 health-based violations on record. About 96% of systems in the state carry at least one violation, and state-wide the average per system is 88.9 violations. Statewide, 93 of 229 UCMR5-tested systems have reported PFAS detections (40.6%).

Dupont Water Company's 115 violations sit above the Indiana average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
3,865
Total Violations
115
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,546
County
Jennings
School/Daycare
No
MCL Violations
0
Monitoring Violations
46
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Consumer Confidence Rule Other 66 2023
TTHM MR 14 2017
Total Haloacetic Acids (HAA5) MR 13 2017
Lead and Copper Rule MR 10 2023
Coliform (TCR) MR 6 2016
Revised Total Coliform Rule RPT 3 2017
Revised Total Coliform Rule MON 3 2018

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 1 of 29 samples detected PFAS.

Contaminant Date Result MRL Status
NMeFOSAA 6/4/2025 <6.00 ppt 6.00 ppt Not Detected
PFOS 6/4/2025 <4.00 ppt 4.00 ppt Not Detected
PFNA 6/4/2025 <4.00 ppt 4.00 ppt Not Detected
PFMPA 6/4/2025 <4.00 ppt 4.00 ppt Not Detected
PFHpA 6/4/2025 <3.00 ppt 3.00 ppt Not Detected
PFEESA 6/4/2025 <3.00 ppt 3.00 ppt Not Detected
PFOA 6/4/2025 <4.00 ppt 4.00 ppt Not Detected
PFPeA 6/4/2025 <3.00 ppt 3.00 ppt Not Detected
PFHxS 6/4/2025 <3.00 ppt 3.00 ppt Not Detected
PFBS 6/4/2025 4.50 ppt 3.00 ppt Detected
PFDA 6/4/2025 <3.00 ppt 3.00 ppt Not Detected
4:2 FTS 6/4/2025 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 6/4/2025 <5.00 ppt 5.00 ppt Not Detected
PFMBA 6/4/2025 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 6/4/2025 <2.00 ppt 2.00 ppt Not Detected
6:2 FTS 6/4/2025 <5.00 ppt 5.00 ppt Not Detected
NFDHA 6/4/2025 <20.00 ppt 20.00 ppt Not Detected
PFPeS 6/4/2025 <4.00 ppt 4.00 ppt Not Detected
PFHpS 6/4/2025 <3.00 ppt 3.00 ppt Not Detected
PFTA 6/4/2025 <8.00 ppt 8.00 ppt Not Detected
PFTrDA 6/4/2025 <7.00 ppt 7.00 ppt Not Detected
ADONA 6/4/2025 <3.00 ppt 3.00 ppt Not Detected
PFBA 6/4/2025 <5.00 ppt 5.00 ppt Not Detected
NEtFOSAA 6/4/2025 <5.00 ppt 5.00 ppt Not Detected
11Cl-PF3OUdS 6/4/2025 <5.00 ppt 5.00 ppt Not Detected
PFUnA 6/4/2025 <2.00 ppt 2.00 ppt Not Detected
PFHxA 6/4/2025 <3.00 ppt 3.00 ppt Not Detected
PFDoA 6/4/2025 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 6/4/2025 <5.00 ppt 5.00 ppt Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Dupont Water Company.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID IN5240004 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Indiana Drinking Water Authority

Indiana Department of Environmental Management, Drinking Water Branch is the primacy agency that licenses and inspects Dupont Water Company under EPA-delegated authority.

Open IN regulator portal

Source: Indiana Department of Environmental Management, Drinking Water Branch

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2023 Consumer Confidence Rule Other 66 SDWIS / IN5240004 / 7000
2023 Lead and Copper Rule MR 10 SDWIS / IN5240004 / 5000
2018 Revised Total Coliform Rule MON 3 SDWIS / IN5240004 / 8000
2017 TTHM MR 14 SDWIS / IN5240004 / 2950
2017 Total Haloacetic Acids (HAA5) MR 13 SDWIS / IN5240004 / 2456
2017 Revised Total Coliform Rule RPT 3 SDWIS / IN5240004 / 8000
2016 Coliform (TCR) MR 6 SDWIS / IN5240004 / 3100

How Dupont Water Company Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Dupont Water Company Indiana avg Federal benchmark
Total violations 115 88.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 9.1 Indicates a contaminant exceeded a federal MCL
PFAS detection 1 compound 40.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 3,865 1,456 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 3,967 regulated public water systems in Indiana.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Dupont Water Company water safe to drink? ▼
Dupont Water Company (PWS ID: IN5240004) has 115 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 3,865 people using Groundwater sources.
How many people does Dupont Water Company serve? ▼
Dupont Water Company serves 3,865 people in Commiskey, Indiana. It is a Local-owned system using Groundwater water sources with 1,546 service connections.
What type of violations does Dupont Water Company have? ▼
Dupont Water Company has 115 total violations: 0 health-based violations (MCL exceedances or treatment failures), 46 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Dupont Water Company water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in Dupont Water Company's water supply: PFBS. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does Dupont Water Company use? ▼
Dupont Water Company uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.