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OSSIAN MUNICIPAL WATER DEPARTMENT

PWS ID: IN5290002 · OSSIAN, Indiana 46777

OSSIAN MUNICIPAL WATER DEPARTMENT serves 3,289 people in OSSIAN, Indiana using Groundwater water sources. It has 170 recorded EPA violations, including 1 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: OSSIAN MUNICIPAL WATER DEPARTMENT

OSSIAN MUNICIPAL WATER DEPARTMENT is a local-owned community water system that delivers drinking water to 3,289 residents in OSSIAN, Indiana (Wells County) through 1,305 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 170 total violations for this system , of which 1 (1%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 167 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 Nitrate, recorded in 20 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. OSSIAN MUNICIPAL WATER DEPARTMENT's 170 violations sit above 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
3,289
Total Violations
170
Health-Based Violations
1
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,305
County
Wells
School/Daycare
No
MCL Violations
1
Monitoring Violations
167
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MR 20 2013
Nickel MR 12 2002
Antimony, Total MR 12 2002
Beryllium, Total MR 12 2002
Selenium MR 12 2002
Barium MR 12 2002
Cadmium MR 12 2002
CYANIDE MR 12 2002
Thallium, Total MR 12 2002
Fluoride MR 12 2002
Mercury MR 12 2002
Arsenic MR 12 2002
Chromium MR 12 2002
Lead and Copper Rule MR 2 2024
Gross Alpha, Excl. Radon and U MR 1 1980
Selenium MCL 1 1983

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 OSSIAN MUNICIPAL WATER DEPARTMENT.

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 IN5290002 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 OSSIAN MUNICIPAL WATER DEPARTMENT 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 2 SDWIS / IN5290002 / 5000
2013 Nitrate MR 20 SDWIS / IN5290002 / 1040
2002 Nickel MR 12 SDWIS / IN5290002 / 1036
2002 Antimony, Total MR 12 SDWIS / IN5290002 / 1074
2002 Beryllium, Total MR 12 SDWIS / IN5290002 / 1075
2002 Selenium MR 12 SDWIS / IN5290002 / 1045
2002 Barium MR 12 SDWIS / IN5290002 / 1010
2002 Cadmium MR 12 SDWIS / IN5290002 / 1015
2002 CYANIDE MR 12 SDWIS / IN5290002 / 1024
2002 Thallium, Total MR 12 SDWIS / IN5290002 / 1085
2002 Fluoride MR 12 SDWIS / IN5290002 / 1025
2002 Mercury MR 12 SDWIS / IN5290002 / 1035
2002 Arsenic MR 12 SDWIS / IN5290002 / 1005
2002 Chromium MR 12 SDWIS / IN5290002 / 1020
1983 Selenium MCL 1 SDWIS / IN5290002 / 1045

How OSSIAN MUNICIPAL WATER DEPARTMENT Compares

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

Metric OSSIAN MUNICIPAL WATER DEPARTMENT Indiana avg Federal benchmark
Total violations 170 88.9 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 1 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 3,289 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 OSSIAN MUNICIPAL WATER DEPARTMENT water safe to drink? ▼
OSSIAN MUNICIPAL WATER DEPARTMENT (PWS ID: IN5290002) has 170 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 3,289 people using Groundwater sources.
How many people does OSSIAN MUNICIPAL WATER DEPARTMENT serve? ▼
OSSIAN MUNICIPAL WATER DEPARTMENT serves 3,289 people in OSSIAN, Indiana. It is a Local-owned system using Groundwater water sources with 1,305 service connections.
What type of violations does OSSIAN MUNICIPAL WATER DEPARTMENT have? ▼
OSSIAN MUNICIPAL WATER DEPARTMENT has 170 total violations: 1 health-based violations (MCL exceedances or treatment failures), 167 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in OSSIAN MUNICIPAL WATER DEPARTMENT water? ▼
No PFAS testing data is available for OSSIAN MUNICIPAL WATER DEPARTMENT under the EPA's UCMR5 monitoring program.
What water source does OSSIAN MUNICIPAL WATER DEPARTMENT use? ▼
OSSIAN MUNICIPAL WATER DEPARTMENT 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. This data is provided for informational purposes only.

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

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