The 905 domestic wells on file within 5 miles of Greenville, from the state’s drilling logs: your neighbors’ wells, and the best guide to this ground.
Source: PaGWIS (PA DCNR), domestic wells within 5 miles, retrieved 2026-09-30; older paper-record locations are approximate.
Deep Holes in Shallow Rock Near Greenville
A new well near Greenville tends to go deep. By median depth, local wells rank 3rd deepest among 15 Mercer County towns. Rock, though, starts close to the surface. Of the 479 logs within 5 miles that note bedrock, half reached it by 18 feet, and the middle half fell between 12 and 35.
For a new well that usually means casing through the soil down to rock, with open hole below it. With rock that shallow, most of a typical hole here is drilled in it. The bedrock mapped under the town belongs to the Cuyahoga Group, Mississippian layers of siltstone, shale and sandstone. Footage in rock is one of the main things behind what a new well costs, and our page on drilling for homes explains how a hole is planned.
Greenville Yields and Sizing the Pump
Locally, 751 logs record a yield. Their median is 25 gallons a minute, and a quarter reported 40 or more. A well near that upper end can usually give more than a house draws at once, so the submersible pump is chosen for the household rather than held back by the well. Near the lower quartile, 15, the margin is smaller, and your own flow test settles the pump size.
A matched pressure tank keeps the pump from starting every time a tap opens, and a constant-pressure upgrade holds the shower steady while the washer fills. Homes on the Aqua PA Greenville system get Shenango River water instead; the borough’s treatment page covers that supply.
