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Community Water System · PWS OH8300412

Franklin Public Water System

Franklin, Ohio 45005 - drinking water served from groundwater sources to 17,175 people, tracked in EPA SDWIS and UCMR5.

17,175
People served
171
EPA violations
8
Health-based
1 PFAS
UCMR5 result

The verdict

EPA records 171 drinking-water violations at Franklin Public Water System, 5% of them health-based - above the Ohio per-system average, and UCMR5 testing detected 1 PFAS compound.

171
Total EPA violations on record
5%
Health-based (MCL / treatment failure)
17,175
People served by this system
1
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Franklin Public Water System

Franklin Public Water System is a private-owned community water system that delivers drinking water to 17,175 residents in Franklin, Ohio (Warren County) through 4,848 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 171 total violations for this system , of which 8 (5%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 161 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 8 violations (MCL, health-based). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 4.1 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

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%).

Franklin Public Water System's 171 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.

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
17,175
Total Violations
171
Health-Based Violations
8
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
4,848
County
Warren
School/Daycare
No
MCL Violations
8
Monitoring Violations
161
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 8 1992
Arsenic MR 7 2001
Beryllium, Total MR 7 2001
Mercury MR 7 2001
Fluoride MR 7 2001
Antimony, Total MR 7 2001
Nickel MR 7 2001
Cadmium MR 7 2001
Selenium MR 7 2001
Thallium, Total MR 7 2001
Barium MR 7 2001
Chromium MR 7 2001
Nitrate MR 6 1997
CYANIDE MR 4 1998
Lead and Copper Rule MR 4 2003
Revised Total Coliform Rule MON 4 2023
Gross Alpha, Excl. Radon and U MR 3 1998
Xylenes, Total MR 3 1998
CHLOROBENZENE MR 3 1998
Benzene MR 3 1998
DICHLOROMETHANE MR 3 1998
Vinyl chloride MR 3 1998
1,1-Dichloroethylene MR 3 1998
Carbon tetrachloride MR 3 1998
Trichloroethylene MR 3 1998
Toluene MR 3 1998
Styrene MR 3 1998
trans-1,2-Dichloroethylene MR 3 1998
1,1,2-Trichloroethane MR 3 1998
cis-1,2-Dichloroethylene MR 3 1998

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 1 of 58 samples detected PFAS.

Contaminant Date Result MRL Status
PFHpA 9/19/2023 <3.00 ppt 3.00 ppt Not Detected
ADONA 9/19/2023 <3.00 ppt 3.00 ppt Not Detected
11Cl-PF3OUdS 9/19/2023 <5.00 ppt 5.00 ppt Not Detected
PFHxA 9/19/2023 <3.00 ppt 3.00 ppt Not Detected
PFDoA 9/19/2023 <3.00 ppt 3.00 ppt Not Detected
PFDA 9/19/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 9/19/2023 <4.00 ppt 4.00 ppt Not Detected
PFOS 9/19/2023 4.10 ppt 4.00 ppt Detected
PFHxS 9/19/2023 <3.00 ppt 3.00 ppt Not Detected
PFBS 9/19/2023 <3.00 ppt 3.00 ppt Not Detected
NFDHA 9/19/2023 <20.00 ppt 20.00 ppt Not Detected
9Cl-PF3ONS 9/19/2023 <2.00 ppt 2.00 ppt Not Detected
PFNA 9/19/2023 <4.00 ppt 4.00 ppt Not Detected
PFHpS 9/19/2023 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 9/19/2023 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 9/19/2023 <6.00 ppt 6.00 ppt Not Detected
NEtFOSAA 9/19/2023 <5.00 ppt 5.00 ppt Not Detected
PFTA 9/19/2023 <8.00 ppt 8.00 ppt Not Detected
PFPeS 9/19/2023 <4.00 ppt 4.00 ppt Not Detected
PFEESA 9/19/2023 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 9/19/2023 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 9/19/2023 <7.00 ppt 7.00 ppt Not Detected
PFBA 9/19/2023 <5.00 ppt 5.00 ppt Not Detected
PFMBA 9/19/2023 <3.00 ppt 3.00 ppt Not Detected
4:2 FTS 9/19/2023 <3.00 ppt 3.00 ppt Not Detected
PFUnA 9/19/2023 <2.00 ppt 2.00 ppt Not Detected
8:2 FTS 9/19/2023 <5.00 ppt 5.00 ppt Not Detected
PFMPA 9/19/2023 <4.00 ppt 4.00 ppt Not Detected
PFPeA 9/19/2023 <3.00 ppt 3.00 ppt Not Detected
PFTrDA 3/22/2023 <7.00 ppt 7.00 ppt Not Detected
PFDA 3/22/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 3/22/2023 <4.00 ppt 4.00 ppt Not Detected
PFOS 3/22/2023 <4.00 ppt 4.00 ppt Not Detected
PFNA 3/22/2023 <4.00 ppt 4.00 ppt Not Detected
PFHxS 3/22/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpA 3/22/2023 <3.00 ppt 3.00 ppt Not Detected
PFBS 3/22/2023 <3.00 ppt 3.00 ppt Not Detected
NEtFOSAA 3/22/2023 <5.00 ppt 5.00 ppt Not Detected
PFTA 3/22/2023 <8.00 ppt 8.00 ppt Not Detected
PFDoA 3/22/2023 <3.00 ppt 3.00 ppt Not Detected
11Cl-PF3OUdS 3/22/2023 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 3/22/2023 <6.00 ppt 6.00 ppt Not Detected
PFEESA 3/22/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpS 3/22/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxA 3/22/2023 <3.00 ppt 3.00 ppt Not Detected
NFDHA 3/22/2023 <20.00 ppt 20.00 ppt Not Detected
PFUnA 3/22/2023 <2.00 ppt 2.00 ppt Not Detected
PFMBA 3/22/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeA 3/22/2023 <3.00 ppt 3.00 ppt Not Detected
PFMPA 3/22/2023 <4.00 ppt 4.00 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 Franklin Public Water System.

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 OH8300412 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 Franklin Public Water System 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
2024 Consumer Confidence Rule Other 2 SDWIS / OH8300412 / 7000
2023 Revised Total Coliform Rule MON 4 SDWIS / OH8300412 / 8000
2003 Lead and Copper Rule MR 4 SDWIS / OH8300412 / 5000
2001 Arsenic MR 7 SDWIS / OH8300412 / 1005
2001 Beryllium, Total MR 7 SDWIS / OH8300412 / 1075
2001 Mercury MR 7 SDWIS / OH8300412 / 1035
2001 Fluoride MR 7 SDWIS / OH8300412 / 1025
2001 Antimony, Total MR 7 SDWIS / OH8300412 / 1074
2001 Nickel MR 7 SDWIS / OH8300412 / 1036
2001 Cadmium MR 7 SDWIS / OH8300412 / 1015
2001 Selenium MR 7 SDWIS / OH8300412 / 1045
2001 Thallium, Total MR 7 SDWIS / OH8300412 / 1085
2001 Barium MR 7 SDWIS / OH8300412 / 1010
2001 Chromium MR 7 SDWIS / OH8300412 / 1020
1998 CYANIDE MR 4 SDWIS / OH8300412 / 1024

How Franklin Public Water System Compares

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

Metric Franklin Public Water System Ohio avg Federal benchmark
Total violations 171 69 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 8 12.5 Indicates a contaminant exceeded a federal MCL
PFAS detection 1 compound 59% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 17,175 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 Franklin Public Water System water safe to drink? ▼
Franklin Public Water System (PWS ID: OH8300412) has 171 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 17,175 people using Groundwater sources.
How many people does Franklin Public Water System serve? ▼
Franklin Public Water System serves 17,175 people in Franklin, Ohio. It is a Private-owned system using Groundwater water sources with 4,848 service connections.
What type of violations does Franklin Public Water System have? ▼
Franklin Public Water System has 171 total violations: 8 health-based violations (MCL exceedances or treatment failures), 161 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Franklin Public Water System water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in Franklin Public Water System's water supply: PFOS. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does Franklin Public Water System use? ▼
Franklin Public Water System 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. 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.

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.