PA · 67 COUNTIES

Well Water & Real Estate — Pennsylvania

Guidance for homebuyers, sellers, and real estate professionals dealing with private well properties in Pennsylvania.

County Risk Distribution

67counties
High Risk — 69% Moderate Risk — 28% Low / Info — 3%

Free County Water Quality Reports

Every county in Pennsylvania has a free downloadable water quality report covering contaminant data, detection rates, and risk context — useful for buyers, sellers, and agents alike.

Find Your County Report →

For Homebuyers

Before purchasing a property with a private well in Pennsylvania, commission an independent water test. Sellers are not always required to disclose water quality issues, and visual inspection of the water tells you nothing about dissolved contaminants.

Key steps before closing

Lender requirements

FHA and VA loans require a well water test before closing if the property uses a private well. The test must be performed by a state-certified lab and must meet EPA drinking water standards for coliform bacteria and nitrate at minimum. Some lenders require a broader panel. Build testing time into your closing timeline.

Find a Testing Lab in Pennsylvania

Higher-Risk Counties in Pennsylvania

The following counties have elevated contaminant detection rates based on available groundwater data. Buyers purchasing in these areas should prioritize comprehensive testing and budget for potential treatment.

Adams County PFOS, PFOA High Allegheny County Chloride, Sulfate High Beaver County Chloride, Sulfate High Bedford County Sodium, Chloride High Berks County PFOA, PFOS High Blair County Chloride, Sodium High Bucks County PFOA, PFOS High Butler County Chloride, Sodium High Centre County Sulfate, Sodium High Chester County PFOA, PFOS High Clarion County Sodium, Sulfate High Clearfield County Sulfate, Sodium High Clinton County Sulfate, Sodium High Cumberland County Chloride, Sulfate High Dauphin County Sodium, PFOS High Delaware County Sodium, Sulfate High Elk County Sulfate, Sodium High Erie County Chloride, Sodium High Fayette County Sodium, Sulfate High Fulton County Iron, Sulfate High Huntingdon County Sodium, Lead High Indiana County Sodium, Sulfate High Jefferson County Iron, Sulfate High Lackawanna County Sulfate, Sodium High Lancaster County PFOA, PFBS High Lawrence County Chloride, Sulfate High Lehigh County PFOA, PFBS High Lycoming County Sodium, Chloride High Mercer County Chloride, Sodium High Mifflin County Sulfate, Chloride High Montgomery County PFOA, PFOS High Northampton County PFOA, PFOS High Northumberland County Sulfate, Sodium High Perry County Sodium, Sulfate High Philadelphia County Sulfate, Chloride High Potter County Manganese, Chloride High Schuylkill County Sulfate, PFOA High Snyder County Manganese, Sulfate High Somerset County Sulfate, Chloride High Sullivan County Chloride, Sodium High Susquehanna County Manganese, Iron High Tioga County Sulfate, Chloride High Union County Iron, Chloride High Warren County Chloride, Sodium High Westmoreland County Sulfate, Sodium High York County PFOA, PFBS High

For Sellers

Having a current water test in hand before listing removes a common source of buyer anxiety and can prevent deals from falling through during inspection. It also demonstrates good faith transparency.

Get your well tested before listing →

For Real Estate Professionals

Every county in Pennsylvania has a free one-page water quality factsheet available as a PDF — useful for buyer consultations, disclosures, and due diligence packets. These reports cover detected contaminants, sample counts, risk context, and recommended testing for private well properties.

Browse County Reports →

County-by-County Risk Context

Water quality varies significantly across Pennsylvania. Browse by county to understand the specific contaminants detected and their risk levels.

Adams County High Allegheny County High Armstrong County Moderate Beaver County High Bedford County High Berks County High Blair County High Bradford County Moderate Bucks County High Butler County High Cambria County Moderate Cameron County Moderate Carbon County Moderate Centre County High Chester County High Clarion County High Clearfield County High Clinton County High Columbia County Moderate Crawford County Moderate

View all 67 counties →