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WARSAW PWS

PWS ID: OH1600612 · WARSAW, Ohio 43844

WARSAW PWS serves 782 people in WARSAW, Ohio using Groundwater water sources. It has 214 recorded EPA violations, including 4 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: WARSAW PWS

WARSAW PWS is a private-owned community water system that delivers drinking water to 782 residents in WARSAW, Ohio (Coshocton County) through 320 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 214 total violations for this system , of which 4 (2%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 203 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 13 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 Ohio, EPA tracks 4,181 public water systems serving 11,085,226 people, with 288,388 cumulative violations and 52,412 health-based violations on record. About 90% of systems in the state carry at least one violation, and state-wide the average per system is 69 violations. WARSAW PWS's 214 violations sit above the Ohio average. Statewide, 204 of 346 UCMR5-tested systems have reported PFAS detections (59%). 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
782
Total Violations
214
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
320
County
Coshocton
School/Daycare
No
MCL Violations
4
Monitoring Violations
203
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 13 2012
Xylenes, Total MR 7 2002
1,1,1-Trichloroethane MR 7 2002
1,2-Dichloropropane MR 7 2002
CHLOROBENZENE MR 7 2002
Benzene MR 7 2002
DICHLOROMETHANE MR 7 2002
Vinyl chloride MR 7 2002
Tetrachloroethylene MR 7 2002
Ethylbenzene MR 7 2002
Carbon tetrachloride MR 7 2002
Trichloroethylene MR 7 2002
Styrene MR 7 2002
p-Dichlorobenzene MR 7 2002
1,1,2-Trichloroethane MR 7 2002
1,2,4-Trichlorobenzene MR 7 2002
1,1-Dichloroethylene MR 7 2002
Toluene MR 7 2002
o-Dichlorobenzene MR 7 2002
Nitrate MR 7 1997
cis-1,2-Dichloroethylene MR 7 2002
trans-1,2-Dichloroethylene MR 7 2002
1,2-Dichloroethane MR 7 2002
Coliform (TCR) MCL 4 2010
Revised Total Coliform Rule MON 4 2018
Arsenic MR 4 1986
Chromium MR 4 1986
Fluoride MR 4 1986
Selenium MR 4 1986
Barium MR 4 1986

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 WARSAW PWS.

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 OH1600612 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Ohio Drinking Water Authority

Ohio EPA — Division of Drinking and Ground Waters is the primacy agency that licenses and inspects WARSAW PWS under EPA-delegated authority.

Open OH regulator portal

Source: Ohio EPA — Division of Drinking and Ground Waters

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
2020 Consumer Confidence Rule Other 2 SDWIS / OH1600612 / 7000
2019 Public Notice Other 2 SDWIS / OH1600612 / 7500
2018 Revised Total Coliform Rule MON 4 SDWIS / OH1600612 / 8000
2012 Coliform (TCR) MR 13 SDWIS / OH1600612 / 3100
2010 Coliform (TCR) MCL 4 SDWIS / OH1600612 / 3100
2008 Total Haloacetic Acids (HAA5) MR 3 SDWIS / OH1600612 / 2456
2002 Xylenes, Total MR 7 SDWIS / OH1600612 / 2955
2002 1,1,1-Trichloroethane MR 7 SDWIS / OH1600612 / 2981
2002 1,2-Dichloropropane MR 7 SDWIS / OH1600612 / 2983
2002 CHLOROBENZENE MR 7 SDWIS / OH1600612 / 2989
2002 Benzene MR 7 SDWIS / OH1600612 / 2990
2002 DICHLOROMETHANE MR 7 SDWIS / OH1600612 / 2964
2002 Vinyl chloride MR 7 SDWIS / OH1600612 / 2976
2002 Tetrachloroethylene MR 7 SDWIS / OH1600612 / 2987
2002 Ethylbenzene MR 7 SDWIS / OH1600612 / 2992

How WARSAW PWS Compares

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

Metric WARSAW PWS Ohio avg Federal benchmark
Total violations 214 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 4 12.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 59% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 782 2,651 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 4,181 regulated public water systems in Ohio.

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 WARSAW PWS water safe to drink? ▼
WARSAW PWS (PWS ID: OH1600612) has 214 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 782 people using Groundwater sources.
How many people does WARSAW PWS serve? ▼
WARSAW PWS serves 782 people in WARSAW, Ohio. It is a Private-owned system using Groundwater water sources with 320 service connections.
What type of violations does WARSAW PWS have? ▼
WARSAW PWS has 214 total violations: 4 health-based violations (MCL exceedances or treatment failures), 203 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in WARSAW PWS water? ▼
No PFAS testing data is available for WARSAW PWS under the EPA's UCMR5 monitoring program.
What water source does WARSAW PWS use? ▼
WARSAW PWS 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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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial