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FOSTORIA CITY

PWS ID: OH7400411 · FOSTORIA, Ohio 44830

FOSTORIA CITY serves 13,441 people in FOSTORIA, Ohio using Surface Water water sources. It has 43 recorded EPA violations, including 23 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: FOSTORIA CITY

FOSTORIA CITY is a local-owned community water system that delivers drinking water to 13,441 residents in FOSTORIA, Ohio (Seneca County) through 5,061 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 43 total violations for this system , of which 23 (53%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 16 monitoring and reporting violations are on file. The most recent violation on record dates to 2010.

The most frequently cited contaminant at this system is Surface Water Treatment Rule, recorded in 12 violations (TT, health-based). 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. FOSTORIA CITY's 43 violations sit below 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
13,441
Total Violations
43
Health-Based Violations
23
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
5,061
County
Seneca
School/Daycare
No
MCL Violations
0
Monitoring Violations
16
Treatment Tech Violations
23

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule TT 12 2002
Interim Enhanced Surface Water Treatment Rule TT 11 2010
Consumer Confidence Rule Other 4 2005
Simazine MR 4 1999
LASSO MR 4 1999
Atrazine MR 4 1999
Total Haloacetic Acids (HAA5) MR 4 2005

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFHpA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 8/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 8/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
lithium 8/7/2023 <9 µg/L 9 µg/L Not Detected
ADONA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 8/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 8/7/2023 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 8/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 8/7/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 8/7/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFHpS 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 8/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 8/7/2023 <0.02 µg/L 0.02 µg/L Not Detected
11Cl-PF3OUdS 8/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFMBA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 8/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 8/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 8/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 8/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 8/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 8/7/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFUnA 8/7/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFEESA 8/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 6/12/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 6/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 6/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 6/12/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFBA 6/12/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHxS 6/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 6/12/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 6/12/2024 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 6/12/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 6/12/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFMBA 6/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 6/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 6/12/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFDA 6/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 6/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 6/12/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 6/12/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpA 6/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 6/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 6/12/2024 <0.003 µg/L 0.003 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 FOSTORIA 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 OH7400411 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 FOSTORIA 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
2010 Interim Enhanced Surface Water Treatment Rule TT 11 SDWIS / OH7400411 / 0300
2005 Consumer Confidence Rule Other 4 SDWIS / OH7400411 / 7000
2005 Total Haloacetic Acids (HAA5) MR 4 SDWIS / OH7400411 / 2456
2002 Surface Water Treatment Rule TT 12 SDWIS / OH7400411 / 0200
1999 Simazine MR 4 SDWIS / OH7400411 / 2037
1999 LASSO MR 4 SDWIS / OH7400411 / 2051
1999 Atrazine MR 4 SDWIS / OH7400411 / 2050

How FOSTORIA CITY Compares

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

Metric FOSTORIA CITY Ohio avg Federal benchmark
Total violations 43 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 23 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 13,441 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 FOSTORIA CITY water safe to drink? ▼
FOSTORIA CITY (PWS ID: OH7400411) has 43 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 13,441 people using Surface Water sources.
How many people does FOSTORIA CITY serve? ▼
FOSTORIA CITY serves 13,441 people in FOSTORIA, Ohio. It is a Local-owned system using Surface Water water sources with 5,061 service connections.
What type of violations does FOSTORIA CITY have? ▼
FOSTORIA CITY has 43 total violations: 23 health-based violations (MCL exceedances or treatment failures), 16 monitoring/reporting violations, and 23 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in FOSTORIA CITY water? ▼
No. FOSTORIA CITY was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does FOSTORIA CITY use? ▼
FOSTORIA 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.

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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.

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 Kiznis Studio Editorial