PlainWater
StatesOhio

Community Water System · PWS OH8800511

Upper Sandusky City

Upper Sandusky, Ohio 43351-1394 - drinking water served from surface water sources to 6,698 people, tracked in EPA SDWIS and UCMR5.

6,698
People served
71
EPA violations
12
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 71 drinking-water violations at Upper Sandusky City, 17% of them health-based - above the Ohio per-system average.

71
Total EPA violations on record
17%
Health-based (MCL / treatment failure)
6,698
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Upper Sandusky City

Upper Sandusky City is a local-owned community water system that delivers drinking water to 6,698 residents in Upper Sandusky, Ohio (Wyandot County) through 2,935 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 71 total violations for this system , of which 12 (17%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 51 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 Simazine, recorded in 12 violations (MR). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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. Statewide, 204 of 346 UCMR5-tested systems have reported PFAS detections (59%).

Upper Sandusky City's 71 violations sit above the Ohio 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
6,698
Total Violations
71
Health-Based Violations
12
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
2,935
County
Wyandot
School/Daycare
No
MCL Violations
8
Monitoring Violations
51
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Simazine MR 12 2005
LASSO MR 12 2005
Atrazine MR 12 2005
Consumer Confidence Rule Other 8 2020
Surface Water Treatment Rule TT 4 2005
TTHM MCL 4 2004
Coliform (TCR) MCL 4 1993
Lead and Copper Rule MR 1 1995
Barium MR 1 1985
Cadmium MR 1 1985
Chromium MR 1 1985
Fluoride MR 1 1985
Nitrate MR 1 1985
Selenium MR 1 1985
Endrin MR 1 1988
Methoxychlor MR 1 1988
Toxaphene MR 1 1988
2,4-D MR 1 1988
2,4,5-TP MR 1 1988
Mercury MR 1 1985
BHC-GAMMA MR 1 1988
Arsenic MR 1 1985

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 87 samples detected PFAS.

Contaminant Date Result MRL Status
PFHxS 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
PFTrDA 9/23/2025 <7.00 ppt 7.00 ppt Not Detected
PFUnA 9/23/2025 <2.00 ppt 2.00 ppt Not Detected
PFPeS 9/23/2025 <4.00 ppt 4.00 ppt Not Detected
PFHpS 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
PFBS 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
PFHpA 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 9/23/2025 <5.00 ppt 5.00 ppt Not Detected
PFNA 9/23/2025 <4.00 ppt 4.00 ppt Not Detected
PFOS 9/23/2025 <4.00 ppt 4.00 ppt Not Detected
PFHxA 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
PFOA 9/23/2025 <4.00 ppt 4.00 ppt Not Detected
PFDA 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
PFDoA 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
NFDHA 9/23/2025 <20.00 ppt 20.00 ppt Not Detected
PFEESA 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
PFMBA 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
4:2 FTS 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
PFMPA 9/23/2025 <4.00 ppt 4.00 ppt Not Detected
NMeFOSAA 9/23/2025 <6.00 ppt 6.00 ppt Not Detected
NEtFOSAA 9/23/2025 <5.00 ppt 5.00 ppt Not Detected
PFTA 9/23/2025 <8.00 ppt 8.00 ppt Not Detected
6:2 FTS 9/23/2025 <5.00 ppt 5.00 ppt Not Detected
PFBA 9/23/2025 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 9/23/2025 <5.00 ppt 5.00 ppt Not Detected
ADONA 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 9/23/2025 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 9/23/2025 <5.00 ppt 5.00 ppt Not Detected
PFPeA 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
PFOA 7/16/2025 <4.00 ppt 4.00 ppt Not Detected
11Cl-PF3OUdS 7/16/2025 <5.00 ppt 5.00 ppt Not Detected
PFUnA 7/16/2025 <2.00 ppt 2.00 ppt Not Detected
PFHxA 7/16/2025 <3.00 ppt 3.00 ppt Not Detected
PFMPA 7/16/2025 <4.00 ppt 4.00 ppt Not Detected
PFDoA 7/16/2025 <3.00 ppt 3.00 ppt Not Detected
PFHxS 7/16/2025 <3.00 ppt 3.00 ppt Not Detected
PFBS 7/16/2025 <3.00 ppt 3.00 ppt Not Detected
PFDA 7/16/2025 <3.00 ppt 3.00 ppt Not Detected
PFHpA 7/16/2025 <3.00 ppt 3.00 ppt Not Detected
ADONA 7/16/2025 <3.00 ppt 3.00 ppt Not Detected
PFOS 7/16/2025 <4.00 ppt 4.00 ppt Not Detected
PFTA 7/16/2025 <8.00 ppt 8.00 ppt Not Detected
PFNA 7/16/2025 <4.00 ppt 4.00 ppt Not Detected
PFMBA 7/16/2025 <3.00 ppt 3.00 ppt Not Detected
NEtFOSAA 7/16/2025 <5.00 ppt 5.00 ppt Not Detected
PFHpS 7/16/2025 <3.00 ppt 3.00 ppt Not Detected
PFPeS 7/16/2025 <4.00 ppt 4.00 ppt Not Detected
PFPeA 7/16/2025 <3.00 ppt 3.00 ppt Not Detected
PFEESA 7/16/2025 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 7/16/2025 <2.00 ppt 2.00 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 Upper Sandusky City.

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 OH8800511 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 Upper Sandusky City 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 8 SDWIS / OH8800511 / 7000
2005 Simazine MR 12 SDWIS / OH8800511 / 2037
2005 LASSO MR 12 SDWIS / OH8800511 / 2051
2005 Atrazine MR 12 SDWIS / OH8800511 / 2050
2005 Surface Water Treatment Rule TT 4 SDWIS / OH8800511 / 0200
2004 TTHM MCL 4 SDWIS / OH8800511 / 2950
1995 Lead and Copper Rule MR 1 SDWIS / OH8800511 / 5000
1993 Coliform (TCR) MCL 4 SDWIS / OH8800511 / 3100
1988 Endrin MR 1 SDWIS / OH8800511 / 2005
1988 Methoxychlor MR 1 SDWIS / OH8800511 / 2015
1988 Toxaphene MR 1 SDWIS / OH8800511 / 2020
1988 2,4-D MR 1 SDWIS / OH8800511 / 2105
1988 2,4,5-TP MR 1 SDWIS / OH8800511 / 2110
1988 BHC-GAMMA MR 1 SDWIS / OH8800511 / 2010
1985 Barium MR 1 SDWIS / OH8800511 / 1010

How Upper Sandusky City Compares

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

Metric Upper Sandusky City Ohio avg Federal benchmark
Total violations 71 69 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 12 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 6,698 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 (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 Upper Sandusky City water safe to drink?
Upper Sandusky City (PWS ID: OH8800511) has 71 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 6,698 people using Surface Water sources.
How many people does Upper Sandusky City serve?
Upper Sandusky City serves 6,698 people in Upper Sandusky, Ohio. It is a Local-owned system using Surface Water water sources with 2,935 service connections.
What type of violations does Upper Sandusky City have?
Upper Sandusky City has 71 total violations: 12 health-based violations (MCL exceedances or treatment failures), 51 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Upper Sandusky City water?
No. Upper Sandusky City was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Upper Sandusky City use?
Upper Sandusky City uses Surface Water 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.
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.