Pennsylvania county well guide

Well Water in Warren County, PA: Testing, Contractors and Rules

About 8,352 households in Warren County, 52% of the county, rely on a private well. Nobody tests that water unless the owner does.

Labs within 40 milesLicensed contractors
52%of households on a private well
Share on wells, county vs state
Warren County52%
Pennsylvania average27%
75licensed contractors serve the county
31 mito the nearest certified lab, Chautauqua County Health
Nostatewide test required when a home is sold

In Warren County, roughly 52% of households, about 8,352 homes, draw their water from a private well. Nobody tests it, treats it or inspects it unless the owner does.

Local rules for wells in Warren County

There is no state well code in Pennsylvania. Warren County townships may have their own well ordinances, and lenders usually require a water test at sale even where the township does not. The cards below show what the state itself requires and recommends.

At a glance

Water test for a new wellNot required statewide

Pennsylvania has no statewide private well construction standards or mandatory testing. DCNR licenses drillers but states that licensure does not require demonstrated knowledge of proper drilling. Some counties and townships (for example Chester County) have local well ordinances.

Water test when a home is soldNot required statewide

No statewide requirement. FHA, VA and USDA loans typically require a water test; some townships require testing at transfer.

What the state recommends

DEP recommends testing every year for total coliform bacteria, nitrate, total dissolved solids and pH, plus additional tests for any suspected contaminant. Penn State Extension recommends a broader panel every 3 years (metals, hardness, chloride, sulfate) and testing after flooding, repairs or a change in taste, odor or color.

Free or low-cost testingAvailable

DEP regional offices sell low-cost bacteria test kits. Penn State Agricultural Analytical Services Lab offers mail-in drinking water kits at cost.

Getting your water tested near Warren County

Warren County has no certified lab within 40 miles, so most owners here test by mail. Order bottles from a certified lab, sample from the cold tap before any treatment, and ship the same day with an ice pack.

1 certified labs within 40 miles

Licensed well contractors serving Warren County

Licensed help in Warren County includes Ameridrill, Inc. and Benner Geoservices Inc. and 35 others. Every listing was matched to the Pennsylvania license list; the “verify” link on each profile opens the state lookup.

Well depth and water chemistry

Well depth and water chemistry in Warren County follow the rock underneath it. Depth varies across the county; the state well record search shows logs for nearby wells.

Typical well depth

Varies by location. Check the state well record search for logs of nearby wells.

Contaminants to test for
  • Coliform bacteria
  • Nitrate
  • Iron
  • Manganese
  • Hardness
  • Low pH
  • Radon
  • Arsenic (some regions)
  • Methane (gas regions)

Neighboring counties: Forest County, McKean County, Venango County, Elk County.

What well work costs in Warren County

Basic bacteria and nitrate test$25 to $75lab fee, homeowner sample
Full panel lab test$150 to $400metals, VOCs, radiologicals
Well inspection$250 to $550flow, pressure, visual, water test
Submersible pump replacement$1,200 to $4,500parts and labor
Pressure tank replacement$400 to $1,200installed
Whole-house treatment system$800 to $6,000softener, iron filter, UV, RO
New well drilled$5,500 to $25,000about $25 to $65 per foot
Shock chlorination$80 to $300or about $20 as a DIY job

National ranges from published 2025 to 2026 contractor pricing. Local quotes vary with depth, access and materials.

Questions Warren County well owners ask

How many homes in Warren County are on a well?

About 8,352, or 52% of households, based on Census housing data and state well surveys. The share is highest outside the towns with public water.

Where is the closest certified lab to Warren County?

There is no certified lab within 40 miles. Use a mail-in kit from a Pennsylvania certified lab, or the county health department if it collects samples.

Do I need a permit to drill a well in Warren County?

Pennsylvania has no statewide permit, but some townships and counties require one. Ask the township office before work starts.

What does a well test cost near Warren County?

A bacteria and nitrate test runs $25 to $75 at most certified labs; a full panel with metals is $150 to $400. Mail-in kits cost about the same as walking in.