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JOHNSTOWN CITY PWS

PWS ID: OH4501512 · JOHNSTOWN, Ohio 43031

JOHNSTOWN CITY PWS serves 5,200 people in JOHNSTOWN, Ohio using Groundwater water sources. It has 103 recorded EPA violations, including 0 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).

Water Quality Snapshot: JOHNSTOWN CITY PWS

JOHNSTOWN CITY PWS is a local-owned community water system that delivers drinking water to 5,200 residents in JOHNSTOWN, Ohio (Licking County) through 2,200 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 103 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 98 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 7 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 18 ppt. 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. JOHNSTOWN CITY PWS's 103 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.

PFAS Detected

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

Population Served
5,200
Total Violations
103
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
2,200
County
Licking
School/Daycare
No
MCL Violations
0
Monitoring Violations
98
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 7 2015
Xylenes, Total MR 4 1995
1,1,1-Trichloroethane MR 4 1995
1,2-Dichloropropane MR 4 1995
CHLOROBENZENE MR 4 1995
Benzene MR 4 1995
1,2-Dichloroethane MR 4 1995
Tetrachloroethylene MR 4 1995
Trichloroethylene MR 4 1995
Toluene MR 4 1995
o-Dichlorobenzene MR 4 1995
1,1,2-Trichloroethane MR 4 1995
Revised Total Coliform Rule MON 4 2019
Ethylbenzene MR 4 1995
trans-1,2-Dichloroethylene MR 4 1995
1,2,4-Trichlorobenzene MR 4 1995
DICHLOROMETHANE MR 4 1995
1,1-Dichloroethylene MR 4 1995
p-Dichlorobenzene MR 4 1995
cis-1,2-Dichloroethylene MR 4 1995
Styrene MR 4 1995
Vinyl chloride MR 4 1995
Carbon tetrachloride MR 4 1995
Nitrate MR 3 1995
Consumer Confidence Rule Other 2 2011
Public Notice Other 2 2020

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 60 samples detected PFAS.

Contaminant Date Result MRL Status
lithium 5/13/2024 18.0000 µg/L 9 µg/L Detected
NFDHA 5/13/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 5/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 5/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 5/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 5/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 5/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 5/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 5/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 5/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 5/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 5/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 5/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 5/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 5/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpA 5/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 5/13/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 5/13/2024 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 5/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 5/13/2024 <0.006 µg/L 0.006 µg/L Not Detected
8:2 FTS 5/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 5/13/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 5/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 5/13/2024 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 5/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 5/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 5/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 5/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 5/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 5/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 11/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 11/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 11/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 11/13/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 11/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 11/13/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFBA 11/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFDoA 11/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 11/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 11/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 11/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 11/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 11/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 11/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 11/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 11/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 11/13/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFTrDA 11/13/2024 <0.007 µg/L 0.007 µg/L Not Detected
6:2 FTS 11/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
lithium 11/13/2024 18.0000 µg/L 9 µg/L 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 JOHNSTOWN CITY 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 OH4501512 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 JOHNSTOWN CITY 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 Public Notice Other 2 SDWIS / OH4501512 / 7500
2019 Revised Total Coliform Rule MON 4 SDWIS / OH4501512 / 8000
2015 Coliform (TCR) MR 7 SDWIS / OH4501512 / 3100
2011 Consumer Confidence Rule Other 2 SDWIS / OH4501512 / 7000
1995 Xylenes, Total MR 4 SDWIS / OH4501512 / 2955
1995 1,1,1-Trichloroethane MR 4 SDWIS / OH4501512 / 2981
1995 1,2-Dichloropropane MR 4 SDWIS / OH4501512 / 2983
1995 CHLOROBENZENE MR 4 SDWIS / OH4501512 / 2989
1995 Benzene MR 4 SDWIS / OH4501512 / 2990
1995 1,2-Dichloroethane MR 4 SDWIS / OH4501512 / 2980
1995 Tetrachloroethylene MR 4 SDWIS / OH4501512 / 2987
1995 Trichloroethylene MR 4 SDWIS / OH4501512 / 2984
1995 Toluene MR 4 SDWIS / OH4501512 / 2991
1995 o-Dichlorobenzene MR 4 SDWIS / OH4501512 / 2968
1995 1,1,2-Trichloroethane MR 4 SDWIS / OH4501512 / 2985

How JOHNSTOWN CITY PWS Compares

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

Metric JOHNSTOWN CITY PWS Ohio avg Federal benchmark
Total violations 103 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 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 5,200 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 JOHNSTOWN CITY PWS water safe to drink? ▼
JOHNSTOWN CITY PWS (PWS ID: OH4501512) has 103 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 5,200 people using Groundwater sources.
How many people does JOHNSTOWN CITY PWS serve? ▼
JOHNSTOWN CITY PWS serves 5,200 people in JOHNSTOWN, Ohio. It is a Local-owned system using Groundwater water sources with 2,200 service connections.
What type of violations does JOHNSTOWN CITY PWS have? ▼
JOHNSTOWN CITY PWS has 103 total violations: 0 health-based violations (MCL exceedances or treatment failures), 98 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in JOHNSTOWN CITY PWS water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in JOHNSTOWN CITY PWS's water supply: lithium. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does JOHNSTOWN CITY PWS use? ▼
JOHNSTOWN CITY 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. 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