Living Next to a Well: Water, Setbacks, and Zoning

A drilling permit near your property does not leave you without rights. Pennsylvania law sets minimum distances between a well and your home, presumes the operator responsible if your water goes bad, and lets your township say where wells can go. Here is how those protections work and the one step to take before the rig arrives.

How Close a Well Can Be to Your House or Water Well

For an unconventional (Marcellus shale) well, 58 Pa.C.S. § 3215 sets the well bore back at least 500 feet from a building or a private water well and 1,000 feet from a public water supply. There are also buffers from streams, springs, and larger wetlands. Conventional wells use a shorter 200-foot distance.

Two cautions. First, courts struck several subsections of § 3215 in the Robinson Township litigation, so the DEP's old power to shrink some of these buffers is not live law; the core distances above are what stand. Second, and this matters most, the setback can be waived by written consent, and that consent is often buried in the oil and gas lease a prior owner signed. If your chain of title includes a lease, read the surface and setback terms before you assume the 500 feet is guaranteed.

The Presumption That the Operator Is Responsible If Your Water Goes Bad

Pennsylvania does not make you prove the science on your own. Under 58 Pa.C.S. § 3218, if your water supply is polluted, the operator is presumed responsible when the supply sits within 2,500 feet of an unconventional vertical well bore and the problem shows up within 12 months of drilling. For conventional wells the presumption runs to 1,000 feet and 6 months.

The presumption is rebuttable. The operator can defeat it with specific statutory defenses, and the most common one is a pre-drilling water test showing your water was already bad. That is exactly why your own baseline test is the fight worth having.

The One Thing to Do Before Drilling Starts: A Baseline Water Test

The operator is required to run a pre-drilling survey of nearby water supplies under 25 Pa. Code § 78a.52. That survey is the operator's evidence, gathered by the operator's contractor. Get your own.

Hire an independent, certified lab to sample your well with a documented chain of custody before any drilling. A clean baseline result is the single fact that turns the § 3218 presumption from a talking point into a claim. Without it, the operator points to its own survey and you are arguing from memory. One test, taken early, is the cheapest insurance you will buy in this whole process.

What the Operator Must Do If It Contaminates Your Water

Section 3218 does not just assign blame. If an operator pollutes or diminishes your water supply, it must restore or replace that supply. The DEP rules require the replacement to meet Safe Drinking Water Act standards or the quality you had before, whichever is better, and that can mean a new well, a treatment system, or a permanent connection to a public line. The statutory remedy does not cancel your common-law claims. In the Dimock litigation, a federal court let negligence and nuisance claims proceed alongside the statute, so ordinary property-damage theories can run in parallel. (The later jury verdict in that case was set aside, so treat it as an illustration of what survives, not a payout to count on.)

Whether the Township Can Still Use Zoning

Yes. Act 13 once tried to impose a single statewide rule that stripped municipalities of the power to zone for wells. In the Robinson Township decisions, the Pennsylvania Supreme Court struck that preemption scheme down and restored local zoning authority. The Court's reasoning under the Environmental Rights Amendment was a plurality, but the result that invalidated the statewide override controls. In plain terms, your township can put oil and gas operations in some zoning districts and not others, the same way it treats any other heavy industrial use. Local ordinances are worth checking before you assume a well can go anywhere.

Whether a Neighbor's Fracking Can Drain Your Gas

Often, yes, and lawfully. Pennsylvania follows the rule of capture. Gas migrates, so an operator who drills and fracks entirely on a neighboring tract is generally not liable just because gas flows toward its well from under your land. That rule traces back more than a century and the Supreme Court confirmed it applies to modern hydraulic fracturing in the Briggs case. The classic answer is to lease and drill your own tract rather than sue.

When You Can Sue for a Well Crossing Under Your Land

The rule of capture has a limit. If the operator's fractures, fluid, or proppant physically cross the boundary and intrude into your property, that can be a trespass you can sue on. The line is drainage by migration (allowed) versus a provable physical invasion under your land (actionable). Two related points come up here. A severed gas owner may hold an implied right to use the surface to reach the gas, so surface access alone is not always a trespass. And a pipeline company holding a PUC certificate for intrastate service can take a right-of-way by eminent domain, which is condemnation, not a trespass claim. Which doctrine applies turns on the facts, and the mapping of the well bore and fractures usually decides it.

Whether You Get Anything From the Impact Fee

Pennsylvania charges an unconventional gas well impact fee under 58 Pa.C.S. §§ 2301-2318, and it raises real money. It does not come to you. The fee is paid to state and local governments, host counties, and municipalities, not to the landowner as a royalty. Your payment for the gas comes from your lease, not the impact fee. Do not let an operator suggest the fee is your compensation.

How I Help

I represent Pennsylvania landowners who live near drilling or are about to. I read the lease and the chain of title to see what setbacks and surface rights were already given away, I make sure you get an independent baseline water test on the record before the rig arrives, and I hold operators to the § 3218 restore-or-replace duty when a supply goes bad. If a fracture or a pipeline has crossed onto your land, I sort out whether you have a trespass claim, a condemnation fight, or a lease problem.

Legal Authorities

The Pennsylvania statutes and cases behind this page:

• 58 Pa.C.S. § 3215 (well location restrictions); § 3218 (protection of water supplies); § 3225 (bonding).
• 25 Pa. Code chs. 78, 78a (DEP oil and gas well regulations).
• Robinson Township v. Commonwealth, 83 A.3d 901 (Pa. 2013); Robinson Township v. Commonwealth, 147 A.3d 536 (Pa. 2016).
• Briggs v. Southwestern Energy Production Co., 657 Pa. 38, 224 A.3d 334 (2020).
• Barnard v. Monongahela Natural Gas Co., 216 Pa. 362, 65 A. 801 (1907).
• Belden & Blake Corp. v. Commonwealth, DCNR, 600 Pa. 559, 969 A.2d 528 (2009).
• Pennesi v. DL Resources, Inc., 2026 PA Super 139 (Pa. Super. 2026).
• In re Condemnation by Sunoco Pipeline, L.P., 143 A.3d 1000 (Pa. Cmwlth. 2016).
• Ely v. Cabot Oil & Gas Corp., 38 F. Supp. 3d 518 (M.D. Pa. 2014).
• Unconventional gas well impact fee, 58 Pa.C.S. §§ 2301–2318.

This page is general information about Pennsylvania law, not legal advice, and laws change. For advice on your specific property and lease, speak with a lawyer.

Statutory content on this page was last verified against Pennsylvania statutes (20 Pa.C.S.; 72 P.S. Art. XXI): Jul. 2026. If you are reading this significantly after that date, confirm key provisions with current statute text or contact our office.