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Community Water System · PWS IN5217008

Corunna Water Utility

Corunna, Indiana 46730 - drinking water served from groundwater sources to 255 people, tracked in EPA SDWIS and UCMR5.

255
People served
148
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 148 drinking-water violations at Corunna Water Utility - above the Indiana per-system average.

148
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
255
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Corunna Water Utility

Corunna Water Utility is a local-owned community water system that delivers drinking water to 255 residents in Corunna, Indiana (DeKalb County) through 98 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 148 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 133 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 32 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

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%).

Corunna Water Utility's 148 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.

Population Served
255
Total Violations
148
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
98
County
DeKalb
School/Daycare
No
MCL Violations
0
Monitoring Violations
133
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 32 2012
Consumer Confidence Rule Other 15 2001
Di(2-ethylhexyl) adipate MR 4 1999
Lead and Copper Rule MR 3 2024
Tetrachloroethylene MR 2 1994
Styrene MR 2 1994
Di(2-ethylhexyl) phthalate MR 2 1995
DICHLOROMETHANE MR 2 1994
Dinoseb MR 2 1995
trans-1,2-Dichloroethylene MR 2 1994
Hexachlorocyclopentadiene MR 2 1995
cis-1,2-Dichloroethylene MR 2 1994
Carbofuran MR 2 1995
1,1-Dichloroethylene MR 2 1994
Atrazine MR 2 1995
Heptachlor MR 2 1995
o-Dichlorobenzene MR 2 1994
Carbon tetrachloride MR 2 1994
2,4,5-TP MR 2 1995
Pentachlorophenol MR 2 1995
1,2-DIBROMO-3-CHLOROPROPANE MR 2 1995
Chlordane MR 2 1995
BHC-GAMMA MR 2 1995
Vinyl chloride MR 2 1994
Dalapon MR 2 1995
1,2,4-Trichlorobenzene MR 2 1994
Glyphosate MR 2 1995
ETHYLENE DIBROMIDE MR 2 1995
HEXACHLOROBENZENE MR 2 1995
1,2-Dichloropropane MR 2 1994

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 Corunna Water Utility.

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 IN5217008 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 Corunna Water Utility 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
2024 Lead and Copper Rule MR 3 SDWIS / IN5217008 / 5000
2012 Coliform (TCR) MR 32 SDWIS / IN5217008 / 3100
2001 Consumer Confidence Rule Other 15 SDWIS / IN5217008 / 7000
1999 Di(2-ethylhexyl) adipate MR 4 SDWIS / IN5217008 / 2035
1995 Di(2-ethylhexyl) phthalate MR 2 SDWIS / IN5217008 / 2039
1995 Dinoseb MR 2 SDWIS / IN5217008 / 2041
1995 Hexachlorocyclopentadiene MR 2 SDWIS / IN5217008 / 2042
1995 Carbofuran MR 2 SDWIS / IN5217008 / 2046
1995 Atrazine MR 2 SDWIS / IN5217008 / 2050
1995 Heptachlor MR 2 SDWIS / IN5217008 / 2065
1995 2,4,5-TP MR 2 SDWIS / IN5217008 / 2110
1995 Pentachlorophenol MR 2 SDWIS / IN5217008 / 2326
1995 1,2-DIBROMO-3-CHLOROPROPANE MR 2 SDWIS / IN5217008 / 2931
1995 Chlordane MR 2 SDWIS / IN5217008 / 2959
1995 BHC-GAMMA MR 2 SDWIS / IN5217008 / 2010

How Corunna Water Utility Compares

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

Metric Corunna Water Utility Indiana avg Federal benchmark
Total violations 148 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 255 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 Corunna Water Utility water safe to drink? ▼
Corunna Water Utility (PWS ID: IN5217008) has 148 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 255 people using Groundwater sources.
How many people does Corunna Water Utility serve? ▼
Corunna Water Utility serves 255 people in Corunna, Indiana. It is a Local-owned system using Groundwater water sources with 98 service connections.
What type of violations does Corunna Water Utility have? ▼
Corunna Water Utility has 148 total violations: 0 health-based violations (MCL exceedances or treatment failures), 133 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Corunna Water Utility water? ▼
No PFAS testing data is available for Corunna Water Utility under the EPA's UCMR5 monitoring program.
What water source does Corunna Water Utility use? ▼
Corunna Water Utility 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. 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.