Public water system · OH2501812

Active

Timberlake Water System

At a glance

Timberlake Water System (PWSID OH2501812) is an active community water system in Franklin County, Ohio. It reports serving 1,600 people through 350 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in December 2025.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

1,600

Service connections

350

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDOH2501812

System typeCommunity water system

Activity statusActive

Population served1,600

Service connections350

Primary water sourceGroundwater

Owner typePrivate

Primacy agencyOH state drinking water program

City served—

StateOhio

ZIP—

CountyFranklin County

How does Timberlake Water System compare with other water systems in Franklin County?

By EPA's size categories, Timberlake Water System is a small system (501 to 3,300 people). Franklin County has 90 active public water systems. Its population served is well below the county average of 16,670 people per system, and accounts for 0.1% of the 1,500,285 people reported by systems filed under the county. Across Ohio, the 3,854 active systems average 2,767 people each. Nationally, the average active community water system reports serving 6,703 people, so Timberlake Water System is well below that figure.

What does “community water system” mean?

A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Ohio has 1,028 active community water systems, 27% of the state's 3,854 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 3,446 Ohio systems (89%) list groundwater as their primary source.

Who owns and regulates Timberlake Water System?

EPA lists Timberlake Water System as privately owned. The OH state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 71 of the 90 active systems in Franklin County (79%) are also privately owned.

Does Timberlake Water System have drinking water violations?

Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in December 2025. The violations listed here began between January 1997 and December 2025. By type: 4 public notice, recordkeeping or other, 4 monitoring and reporting, 2 reporting, 1 required treatment not met and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Consumer Confidence Rule (4 of them). EPA lists 7 as resolved, 4 as unaddressed and 1 as addressed. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. Addressed means the violation is not resolved or archived and is covered by formal enforcement.

Began	Violation	Contaminant or rule	Health-based	Status
2025-12-10	Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72	Consumer Confidence Rulecode 7000	No	Unaddressed
2025-07-02	ReportingNotification, Known or Potential LSL · code 4H	Lead and Copper Rule Revisionscode 5200	No	Addressed
2024-10-17	Required treatment not metLSL Inventory · code 2E	Lead and Copper Rule Revisionscode 5200	Yes	Resolved
2024-10-17	ReportingLSL Reporting · code 4G	Lead and Copper Rule Revisionscode 5200	No	Resolved
2020-02-06	Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72	Consumer Confidence Rulecode 7000	No	Unaddressed
2018-12-13	Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72	Consumer Confidence Rulecode 7000	No	Unaddressed
2014-09-13	Monitoring and reportingMonitoring, Source Water (GWR) · code 34	E. colicode 3014	No	Resolved
2012-06-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2011-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Unaddressed
2007-10-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
1998-01-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
1997-01-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved

The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.

Timberlake Water System: frequently asked questions

Who runs Timberlake Water System?

Timberlake Water System (PWSID OH2501812) is a community water system privately owned. It is regulated by the OH state drinking water program.

How many people does Timberlake Water System serve?

Timberlake Water System reports serving 1,600 people through 350 service connections in Franklin County, Ohio.

Where does Timberlake Water System get its water?

EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.

Does Timberlake Water System have any drinking water violations?

Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in December 2025. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.

Is Timberlake Water System's water safe to drink?

AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in December 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the OH state drinking water program.

Where can I find Timberlake Water System's water quality report?

As a community water system, Timberlake Water System must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.

Other water systems in Franklin County

Water system	County	Population served	Type	Source
Columbus Public Water System	Franklin	1,305,946	Community	Surface water
Westerville City Pws	Franklin	39,000	Community	Surface water
Reynoldsburg City Pws	Franklin	37,847	Community	Purchased surface water
Gahanna City Pws	Franklin	33,258	Community	Purchased surface water
Bexley City Pws	Franklin	14,250	Community	Purchased surface water
Jefferson Water and Sewer District Pws	Franklin	11,294	Community	Groundwater

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About this data

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.

Cite as: AquaCensus, “Timberlake Water System, PWSID OH2501812, Ohio”, https://aquacensus.com/water-systems/ohio/timberlake-water-system-oh2501812 (data as of October 1, 2026).