CORYDON WATER WORKS

Q: Is CORYDON WATER WORKS water safe to drink?

CORYDON WATER WORKS (PWS ID: IN5231001) has 21 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 5,716 people using Groundwater sources.

Q: How many people does CORYDON WATER WORKS serve?

CORYDON WATER WORKS serves 5,716 people in CORYDON, Indiana. It is a Local-owned system using Groundwater water sources with 2,300 service connections.

Q: What type of violations does CORYDON WATER WORKS have?

CORYDON WATER WORKS has 21 total violations: 0 health-based violations (MCL exceedances or treatment failures), 18 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Q: Has PFAS been detected in CORYDON WATER WORKS water?

No. CORYDON WATER WORKS was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.

Q: What water source does CORYDON WATER WORKS use?

CORYDON WATER WORKS uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.

Q: 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.

Reviewed byPlainWater Editorial, Drinking Water Quality Editorial Team · June 4, 2026

PWS ID: IN5231001 · CORYDON, Indiana 47112

CORYDON WATER WORKS serves 5,716 people in CORYDON, Indiana using Groundwater water sources. It has 21 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: CORYDON WATER WORKS

CORYDON WATER WORKS is a local-owned community water system that delivers drinking water to 5,716 residents in CORYDON, Indiana (Harrison County) through 2,300 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 21 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 18 monitoring and reporting violations are on file. The most recent violation on record dates to 2000.

The most frequently cited contaminant at this system is Consumer Confidence Rule, recorded in 3 violations (Other). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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. CORYDON WATER WORKS's 21 violations sit below the Indiana average. Statewide, 93 of 229 UCMR5-tested systems have reported PFAS detections (40.6%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served

5,716

Total Violations

Health-Based Violations

Water Source

Groundwater

System Details

System Type: Community
Owner Type: Local
Connections: 2,300
County: Harrison
School/Daycare: No
MCL Violations: 0
Monitoring Violations: 18
Treatment Tech Violations: 0

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
Consumer Confidence Rule	Other	3	2000
Cadmium	MR	2	1981
Barium	MR	2	1981
Arsenic	MR	2	1981
Selenium	MR	2	1981
Mercury	MR	2	1981
Fluoride	MR	2	1981
Chromium	MR	2	1981
Coliform (TCR)	MR	2	1991
Nitrate	MR	2	1981

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 60 samples detected PFAS.

Contaminant	Date	Result	MRL	Status
PFUnA	9/11/2023	<0.002 µg/L	0.002 µg/L	Not Detected
PFHxA	9/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFDoA	9/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFDA	9/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFOA	9/11/2023	<0.004 µg/L	0.004 µg/L	Not Detected
PFOS	9/11/2023	<0.004 µg/L	0.004 µg/L	Not Detected
PFHxS	9/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFHpA	9/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFBS	9/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
11Cl-PF3OUdS	9/11/2023	<0.005 µg/L	0.005 µg/L	Not Detected
NMeFOSAA	9/11/2023	<0.006 µg/L	0.006 µg/L	Not Detected
lithium	9/11/2023	<9 µg/L	9 µg/L	Not Detected
PFNA	9/11/2023	<0.004 µg/L	0.004 µg/L	Not Detected
9Cl-PF3ONS	9/11/2023	<0.002 µg/L	0.002 µg/L	Not Detected
ADONA	9/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
HFPO-DA	9/11/2023	<0.005 µg/L	0.005 µg/L	Not Detected
PFBA	9/11/2023	<0.005 µg/L	0.005 µg/L	Not Detected
6:2 FTS	9/11/2023	<0.005 µg/L	0.005 µg/L	Not Detected
4:2 FTS	9/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFMBA	9/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFEESA	9/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
NFDHA	9/11/2023	<0.02 µg/L	0.02 µg/L	Not Detected
PFPeS	9/11/2023	<0.004 µg/L	0.004 µg/L	Not Detected
PFHpS	9/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
NEtFOSAA	9/11/2023	<0.005 µg/L	0.005 µg/L	Not Detected
8:2 FTS	9/11/2023	<0.005 µg/L	0.005 µg/L	Not Detected
PFMPA	9/11/2023	<0.004 µg/L	0.004 µg/L	Not Detected
PFTrDA	9/11/2023	<0.007 µg/L	0.007 µg/L	Not Detected
PFTA	9/11/2023	<0.008 µg/L	0.008 µg/L	Not Detected
PFPeA	9/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
9Cl-PF3ONS	3/6/2023	<0.002 µg/L	0.002 µg/L	Not Detected
PFHpS	3/6/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFMPA	3/6/2023	<0.004 µg/L	0.004 µg/L	Not Detected
PFBA	3/6/2023	<0.005 µg/L	0.005 µg/L	Not Detected
4:2 FTS	3/6/2023	<0.003 µg/L	0.003 µg/L	Not Detected
8:2 FTS	3/6/2023	<0.005 µg/L	0.005 µg/L	Not Detected
ADONA	3/6/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFPeA	3/6/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFMBA	3/6/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFEESA	3/6/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFPeS	3/6/2023	<0.004 µg/L	0.004 µg/L	Not Detected
11Cl-PF3OUdS	3/6/2023	<0.005 µg/L	0.005 µg/L	Not Detected
HFPO-DA	3/6/2023	<0.005 µg/L	0.005 µg/L	Not Detected
NFDHA	3/6/2023	<0.02 µg/L	0.02 µg/L	Not Detected
PFTA	3/6/2023	<0.008 µg/L	0.008 µg/L	Not Detected
6:2 FTS	3/6/2023	<0.005 µg/L	0.005 µg/L	Not Detected
PFUnA	3/6/2023	<0.002 µg/L	0.002 µg/L	Not Detected
PFTrDA	3/6/2023	<0.007 µg/L	0.007 µg/L	Not Detected
NMeFOSAA	3/6/2023	<0.006 µg/L	0.006 µg/L	Not Detected
lithium	3/6/2023	<9 µg/L	9 µg/L	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 CORYDON WATER WORKS.

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 IN5231001 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 CORYDON WATER WORKS 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
2000	Consumer Confidence Rule	Other	3	SDWIS / IN5231001 / 7000
1991	Coliform (TCR)	MR	2	SDWIS / IN5231001 / 3100
1981	Cadmium	MR	2	SDWIS / IN5231001 / 1015
1981	Barium	MR	2	SDWIS / IN5231001 / 1010
1981	Arsenic	MR	2	SDWIS / IN5231001 / 1005
1981	Selenium	MR	2	SDWIS / IN5231001 / 1045
1981	Mercury	MR	2	SDWIS / IN5231001 / 1035
1981	Fluoride	MR	2	SDWIS / IN5231001 / 1025
1981	Chromium	MR	2	SDWIS / IN5231001 / 1020
1981	Nitrate	MR	2	SDWIS / IN5231001 / 1040

How CORYDON WATER WORKS Compares

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

Metric	CORYDON WATER WORKS	Indiana avg	Federal benchmark
Total violations	21	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	None	40.6%	EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served	5,716	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
Nitrate (as N)	10 mg/L	Acute health risk for infants

Frequently Asked Questions

Is CORYDON WATER WORKS water safe to drink? ▼

CORYDON WATER WORKS (PWS ID: IN5231001) has 21 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 5,716 people using Groundwater sources.

How many people does CORYDON WATER WORKS serve? ▼

CORYDON WATER WORKS serves 5,716 people in CORYDON, Indiana. It is a Local-owned system using Groundwater water sources with 2,300 service connections.

What type of violations does CORYDON WATER WORKS have? ▼

CORYDON WATER WORKS has 21 total violations: 0 health-based violations (MCL exceedances or treatment failures), 18 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in CORYDON WATER WORKS water? ▼

No. CORYDON WATER WORKS was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.

What water source does CORYDON WATER WORKS use? ▼

CORYDON WATER WORKS 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.

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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.

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial