Water Well Drilling Contractors in Pennsylvania

Geology & Depth

Pennsylvania's Ridge and Valley province has folded and faulted Paleozoic limestone, sandstone, and shale, while the Piedmont in the southeast has metamorphic and igneous crystalline bedrock. The glaciated north has drift deposits, and the Appalachian Plateau in the west has gently dipping sandstone and coal-bearing formations.

Most residential wells in Pennsylvania are drilled to 250 feet, with a typical range of 75–600 feet. Water table depth: 50-150 feet in limestone valleys; 100-400 feet in the Piedmont bedrock; 75-300 feet on the Appalachian Plateau.

Permits & Licensing

Pennsylvania does not require a state driller's license, which is unusual among eastern states. However, all wells must be constructed to meet DEP's well construction standards, and drillers must file completion reports.

Permit authority: Pennsylvania Department of Environmental Protection (DEP); no state-level well permit is required for domestic wells, but well drillers must file completion reports with the PA Geological Survey. Expect $0-$100 (some municipalities require local permits) in permit fees.

Primary Aquifer

Appalachian Carbonate Aquifers / Glacial Drift Aquifers / Piedmont Crystalline Rock Aquifers. About 20% of Pennsylvania households use private wells, with the highest rates in the rural northern tier and Appalachian Plateau regions.

Best drilling months: March through November; deep frost in the northern mountains limits winter access.

Common Water Quality Concerns

Pennsylvania well water commonly contains: radon, arsenic, iron, manganese, hardness, coliform bacteria, methane near Marcellus Shale gas operations. A comprehensive water test after drilling (typically $150–$500) will identify which treatments, if any, your well needs.