Yes, in nearly every part of the United States you need a permit to dig a private well before any drilling begins. The federal Safe Drinking Water Act does not regulate private household wells, so the permit comes from your state environmental agency, your county or local health department, or a regional water management district, depending on where your property sits.1Office of the Law Revision Counsel. 42 USC 300f – Definitions2Centers for Disease Control and Prevention. Guidelines for Testing Well Water
Who Issues the Permit
There is no national well permit. The federal Safe Drinking Water Act only reaches “public water systems” serving at least 15 connections or 25 people, which leaves private wells entirely outside EPA authority.1Office of the Law Revision Counsel. 42 USC 300f – Definitions The EPA cannot regulate, monitor, or test private well water.2Centers for Disease Control and Prevention. Guidelines for Testing Well Water
States fill that gap. Some handle well permits through a centralized environmental protection department. Others delegate the work to county health offices. A few require both. Before you talk to a driller, call your county health department or check your state environmental agency’s website to find out which office actually issues the permit where your property sits.
A Drilling Permit Is Not a Water Right
This trips people up, especially in the western states. A well construction permit lets you drill the hole. A water right lets you pump and use the groundwater. In most western states, which follow the prior appropriation doctrine, these are two separate legal requirements handled by two different agencies. Having a drilling permit does not mean you are allowed to withdraw water.
Many western states carve out an exemption for small domestic wells, usually allowing household use without a formal water right as long as you stay under a daily withdrawal limit. The limits vary and are often tied to lot size, the number of households served, or the aquifer. In eastern states operating under riparian rights, this distinction matters less for a residential well, because landowners generally have the right to use groundwater beneath their property. Either way, check whether your state also requires a water appropriation permit before you break ground.
When an Exemption Might Apply
A few jurisdictions exempt certain wells from the full permitting process. The common ones cover hand-dug wells below a specified depth, wells used only for livestock or irrigation on large agricultural parcels, temporary dewatering wells for construction, and emergency wells drilled during declared water crises. Some states exempt domestic wells on parcels above a minimum acreage that produce below a daily gallon threshold.
Exempt rarely means paperwork-free. You may still have to register the well, file a completion report, or follow the construction code. The exemption almost never waives setback distances from septic systems or property lines. Confirm the details with your local permitting office before assuming you qualify.
What the Application Requires
A well permit application generally asks for three things: property details, well specifications, and the driller’s credentials.
On the property side, you will need your parcel number, street address, and a site plan drawn to scale showing where the well will go in relation to property lines, buildings, septic systems, and potential contamination sources like fuel tanks, animal enclosures, or waste disposal areas.
For the well itself, the application asks about proposed depth, casing diameter, pumping capacity, and intended use. A well supplying a single household is treated differently than one serving irrigation or a small commercial operation, so the use category matters. You also have to name the licensed driller who will do the work. Forty-nine states require well drillers to be licensed, and the permit will not issue without a licensed professional attached to it. Application forms are available through your state environmental agency’s website or your county health department.
Fees and Processing Time
Application fees for a standard residential well permit generally run $100 to $600. Some jurisdictions charge more for potable wells than non-potable, and urban areas tend to cost more than rural counties. Fees are almost always non-refundable, so a denied application still costs you money.
You can usually submit online, by mail, or in person. Processing ranges from a few days in rural counties with streamlined electronic systems to several months where a site inspection or environmental review is required. Expect a longer review if your property sits near a sensitive aquifer, a flood zone, or a known contamination plume. Drilling without an issued permit is illegal in virtually every state, and “the application is pending” is not a defense.
Construction Standards the Permit Enforces
Once the permit is approved, your driller has to follow your state’s well construction code. These standards exist to keep surface contaminants out of the aquifer, and they focus on three areas:
- Setback distances. Every jurisdiction sets minimum horizontal distances between the well and potential contamination sources. A common benchmark is at least 50 feet from a septic tank and 100 feet from a septic drain field, though your local code may require more. Setbacks also apply to property lines, fuel storage, livestock areas, and known contamination sites.
- Casing. The well must be lined with durable, non-corrosive casing, typically steel or thermoplastic (PVC) meeting ASTM standards. Casing keeps the borehole from collapsing and prevents surface water from seeping in. Most states require it to extend at least one foot above ground level.
- Grouting. The gap between the casing and the borehole wall, called the annular space, has to be sealed with cement grout or bentonite in a single continuous application. This seal is the well’s main defense against contamination moving down from the surface. Minimum grouting depths vary but commonly run at least 20 feet.
Your driller handles the execution, but you are the permit holder and ultimately responsible for compliance. If an inspector finds a violation, the enforcement action lands on you. Ask your driller to walk you through how they plan to meet each standard before work begins.
Testing and Filings After the Well Is Drilled
Most jurisdictions require water quality testing before you use the well. The driller or an independent lab tests for bacteria (total coliforms), nitrates, and sometimes lead. The CDC and EPA recommend testing annually for total coliforms, nitrates, total dissolved solids, and pH, plus any contaminants of local concern.2Centers for Disease Control and Prevention. Guidelines for Testing Well Water No government agency monitors private well water for you, so testing is the only way to know whether what you are drinking is safe.3United States Environmental Protection Agency. Protect Your Homes Water
Many states also require the driller to file a well completion report, sometimes called a well log or well record, documenting final depth, geology encountered, casing specifications, and water yield. That report goes into a statewide well database and is often required before the permit is officially closed. Some jurisdictions require separate well registration on top of that. Keep copies of everything. You will need them if you sell the property, apply for a mortgage, or modify the well.
What Happens if You Skip the Permit
Drilling without a permit is not a gray area. Fines run from a few hundred dollars to $5,000 or more per violation, depending on the jurisdiction and the severity. The permitting agency can also order you to decommission the well at your own expense, meaning fill and seal the borehole, which can cost thousands on top of what you already spent drilling.
The downstream consequences are usually worse than the fine. An unpermitted well can contaminate neighboring properties or shared aquifers and expose you to civil liability. It complicates or kills property sales, because buyers’ lenders will not finance a home with an unpermitted water supply. Title insurance does not cover losses stemming from unpermitted construction. And because unpermitted wells bypass the setback, casing, and grouting rules, they carry a meaningfully higher risk of delivering unsafe water.
If you have already drilled without a permit, contact your local permitting office. Many jurisdictions have a path to bring an existing well into compliance through after-the-fact inspection and permitting. It is more expensive and less certain than doing it right the first time, but it is usually possible.
Shared Wells and Selling a Home
If two or more properties draw from a single well, the arrangement needs a written shared well agreement recorded with the county, covering ownership, cost sharing, usage limits, repairs, and what happens when a property changes hands. The agreement should run with the land so it binds future buyers.
Selling a home served by a private well brings the permit status back into play. Most states require sellers to disclose the presence of a well and any known defects, and lenders often go further. An unpermitted well is frequently a deal-killer because lenders and title companies flag it as a compliance risk. If your property also has an old, unused well, most states require proper decommissioning, which means filling and sealing it so it does not become a contamination pathway. Failing to disclose or decommission an abandoned well can create liability long after closing.