Skip to content
AquaCensus

Public water system · PA6430079

Active

Liberty Township

At a glance

Liberty Township (PWSID PA6430079) is an active community water system in Mercer County, Pennsylvania. It reports serving 138 people through 41 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list 2 violations for this system; none is health-based, and the most recent began in September 2021.

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

Population served

138

Service connections

41

Primary source

GWP

Purchased groundwater

System type

CWS

Community water system

System record

PWSIDPA6430079
System typeCommunity water system
Activity statusActive
Population served138
Service connections41
Primary water sourcePurchased groundwater
Owner typeLocal government
Primacy agencyPA state drinking water program
City served—
StatePennsylvania
ZIP—
CountyMercer County

How does Liberty Township compare with other water systems in Mercer County?

By EPA's size categories, Liberty Township is a very small system (500 people or fewer). Mercer County has 124 active public water systems. Its population served is well below the county average of 769 people per system, and accounts for 0.1% of the 95,322 people reported by systems filed under the county. Across Pennsylvania, the 7,217 active systems average 1,741 people each. Nationally, the average active community water system reports serving 6,703 people, so Liberty Township 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. Pennsylvania has 1,762 active community water systems, 24% of the state's 7,217 active systems. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 54 Pennsylvania systems (0.7%) list purchased groundwater as their primary source.

Who owns and regulates Liberty Township?

EPA lists Liberty Township as owned by a local government. The PA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 14 of the 124 active systems in Mercer County (11%) are also owned by a local government.

Does Liberty Township have drinking water violations?

EPA's records list 2 violations for this system; none is health-based, and the most recent began in September 2021. The violations listed here began between July 2011 and September 2021. By type: 1 monitoring and 1 monitoring and reporting. The contaminants or rules involved are Revised Total Coliform Rule and Lead and Copper Rule. EPA lists 2 as resolved. 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.

BeganViolationContaminant or ruleHealth-basedStatus
2021-09-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2011-07-01Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51Lead and Copper Rulecode 5000NoResolved

All 2 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.

Liberty Township: frequently asked questions

Who runs Liberty Township?

Liberty Township (PWSID PA6430079) is a community water system owned by a local government. It is regulated by the PA state drinking water program.

How many people does Liberty Township serve?

Liberty Township reports serving 138 people through 41 service connections in Mercer County, Pennsylvania.

Where does Liberty Township get its water?

EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.

Does Liberty Township have any drinking water violations?

EPA's records list 2 violations for this system; none is health-based, and the most recent began in September 2021. 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 Liberty Township'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. EPA's records list 2 violations for this system; none is health-based, and the most recent began in September 2021. For current results, consult the system's annual water quality report, EPA ECHO, or the PA state drinking water program.

Where can I find Liberty Township's water quality report?

As a community water system, Liberty Township 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 Mercer County

Water systemCountyPopulation servedTypeSource
Aqua Pa Shenango Valley WTPMercer48,000CommunitySurface water
Aqua Pa GreenvilleMercer8,600CommunitySurface water
Grove City Boro Water DeptMercer7,871CommunityGroundwater
Sharpsville Boro Water CoMercer5,029CommunityPurchased surface water
Pine Twp Water Distr SystemMercer3,082CommunityPurchased groundwater
Reynolds Water CompanyMercer2,370CommunitySurface water

Related pages

Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.

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, “Liberty Township, PWSID PA6430079, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/liberty-township-pa6430079 (data as of October 1, 2026).