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Non-Transient Non-Community Water System · PWS OH7639412

North Nimishillen Elementary

Louisville, Ohio 44641 - drinking water served from groundwater sources to 446 people, tracked in EPA SDWIS and UCMR5.

446
People served
242
EPA violations
10
Health-based
Untested
UCMR5 result

The verdict

EPA records 242 drinking-water violations at North Nimishillen Elementary, 4% of them health-based - above the Ohio per-system average.

242
Total EPA violations on record
4%
Health-based (MCL / treatment failure)
446
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: North Nimishillen Elementary

North Nimishillen Elementary is a local-owned non-transient non-community water system that delivers drinking water to 446 residents in Louisville, Ohio (Stark County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 242 total violations for this system , of which 10 (4%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 227 monitoring and reporting violations are on file. The most recent violation on record dates to 2017.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 11 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. Statewide, 204 of 346 UCMR5-tested systems have reported PFAS detections (59%).

North Nimishillen Elementary's 242 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
446
Total Violations
242
Health-Based Violations
10
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Local
Connections
1
County
Stark
School/Daycare
Yes
MCL Violations
10
Monitoring Violations
227
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 11 1995
Coliform (TCR) MCL 10 1996
cis-1,2-Dichloroethylene MR 10 2016
DICHLOROMETHANE MR 10 2016
p-Dichlorobenzene MR 10 2016
1,2-Dichloroethane MR 10 2016
1,1,1-Trichloroethane MR 10 2016
Carbon tetrachloride MR 10 2016
Trichloroethylene MR 10 2016
1,1,2-Trichloroethane MR 10 2016
Tetrachloroethylene MR 10 2016
Benzene MR 10 2016
Ethylbenzene MR 10 2016
Styrene MR 10 2016
1,2,4-Trichlorobenzene MR 10 2016
trans-1,2-Dichloroethylene MR 10 2016
1,2-Dichloropropane MR 10 2016
Toluene MR 10 2016
o-Dichlorobenzene MR 10 2016
Vinyl chloride MR 10 2016
1,1-Dichloroethylene MR 10 2016
CHLOROBENZENE MR 10 2016
Xylenes, Total MR 10 2016
TTHM MR 3 2007
Total Haloacetic Acids (HAA5) MR 3 2007
Public Notice Other 1 2017

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 North Nimishillen Elementary.

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 OH7639412 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 North Nimishillen Elementary 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
2017 Public Notice Other 1 SDWIS / OH7639412 / 7500
2016 cis-1,2-Dichloroethylene MR 10 SDWIS / OH7639412 / 2380
2016 DICHLOROMETHANE MR 10 SDWIS / OH7639412 / 2964
2016 p-Dichlorobenzene MR 10 SDWIS / OH7639412 / 2969
2016 1,2-Dichloroethane MR 10 SDWIS / OH7639412 / 2980
2016 1,1,1-Trichloroethane MR 10 SDWIS / OH7639412 / 2981
2016 Carbon tetrachloride MR 10 SDWIS / OH7639412 / 2982
2016 Trichloroethylene MR 10 SDWIS / OH7639412 / 2984
2016 1,1,2-Trichloroethane MR 10 SDWIS / OH7639412 / 2985
2016 Tetrachloroethylene MR 10 SDWIS / OH7639412 / 2987
2016 Benzene MR 10 SDWIS / OH7639412 / 2990
2016 Ethylbenzene MR 10 SDWIS / OH7639412 / 2992
2016 Styrene MR 10 SDWIS / OH7639412 / 2996
2016 1,2,4-Trichlorobenzene MR 10 SDWIS / OH7639412 / 2378
2016 trans-1,2-Dichloroethylene MR 10 SDWIS / OH7639412 / 2979

How North Nimishillen Elementary Compares

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

Metric North Nimishillen Elementary Ohio avg Federal benchmark
Total violations 242 69 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 10 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 446 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 North Nimishillen Elementary water safe to drink? ▼
North Nimishillen Elementary (PWS ID: OH7639412) has 242 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 446 people using Groundwater sources.
How many people does North Nimishillen Elementary serve? ▼
North Nimishillen Elementary serves 446 people in Louisville, Ohio. It is a Local-owned system using Groundwater water sources with 1 service connections.
What type of violations does North Nimishillen Elementary have? ▼
North Nimishillen Elementary has 242 total violations: 10 health-based violations (MCL exceedances or treatment failures), 227 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in North Nimishillen Elementary water? ▼
No PFAS testing data is available for North Nimishillen Elementary under the EPA's UCMR5 monitoring program.
What water source does North Nimishillen Elementary use? ▼
North Nimishillen Elementary uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
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. 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.