⟁ Pennsylvania Well Records field records · 2026 survey

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Terra Testing, Inc.

Recorded as the driller on 4,532 water wells across 37Pennsylvaniacounties in the Pennsylvania Groundwater Information System (PaGWIS), published by the PA Department of Conservation and Natural Resources, most in Allegheny County. Well-log records span 2005–2025.

4,532wells on record
140since 2022
37counties served
26 ftmedian depth

Counties served

Wells drilled by Terra Testing, Inc., by county, across the full record.

CountyWells drilled
Allegheny County1,256
Washington County809
Beaver County418
Westmoreland County409
Greene County280
Indiana County210
Fayette County146
Butler County111
Dauphin County104
Armstrong County95
Mercer County80
Erie County67
Show all 37counties
Lawrence County61
Cambria County60
Crawford County52
Clearfield County50
Mckean County48
Blair County43
Potter County41
Bedford County38
Somerset County22
Jefferson County18
Lycoming County17
Venango County16
Clarion County14
Warren County12
Forest County10
Centre County9
Pike County7
Elk County7
Lebanon County6
Delaware County4
Luzerne County3
Tioga County3
Berks County2
Perry County2
Huntingdon County2

Well characteristics

Across the wells Terra Testing, Inc. has drilled, the median depth is 26 ft (middle half 17 ft–40 ft), median tested yield 9 gpm, and median static water level 15 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.

Original drilling logs

Recent well logs filed by Terra Testing, Inc., straight from the public DCNR record:

"Records span 2005–2025" refers to the earliest and latest well logs attributed to this company in the DCNR database — the state digitized older paper logs, so the first date is the oldest record on file, not necessarily the company's founding year.

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