Why Does an Old Well Need to Be Sealed?
An unused well is a direct pathway from the surface into groundwater. If it's left open or capped with plywood and a rock, surface runoff, debris, insects, and rodents can travel straight down the casing into the aquifer. Properly abandoning a well means filling it with sealing material so it can no longer move water or contaminants between zones — it's not something a property owner should try to handle with a bag of concrete.
What Are the Signs an Old Well Should Be Abandoned?
A well is a candidate for abandonment, not repair, when it's been replaced by a new well, when the casing has collapsed or corroded beyond use, or when the well was drilled for a purpose the property no longer serves — an old irrigation well on land that's since been split into residential lots, for example. If the well still produces usable water and the casing is sound, rehabilitation is usually the better and cheaper path. Abandonment is for wells that are done, not wells that are struggling.
How Is a Well Actually Abandoned?
The general process looks like this:
- Remove the pump and equipment — submersible pump, drop pipe, wiring, and any pitless adapter or well cap hardware
- Assess the casing and depth — confirms how much material is needed and whether the casing needs to be perforated or removed in sections
- Fill the well — typically with cement grout or a bentonite-based sealant placed from the bottom up, so there are no gaps where water can still move
- Cut and cap the casing below grade, and restore the surface
The goal at every step is a permanent seal, not a plug that could settle or wash out over time. This is the same crew and equipment used for our other drilling and pump work, so the site work — access, staging, cleanup — is handled the same way.
Do You Have to Abandon a Well, or Can You Just Leave It?
An old well doesn't stop being a well because it's forgotten. A dry or unused well left open is a standing risk: it's a fall hazard if the opening is wide enough, and it's a route for contamination to reach water that a neighboring well or your own new well might draw from. On agricultural and rural residential parcels across Iron, Washington, Beaver, and the surrounding counties, it's common to find a well from a prior owner or an earlier drilling attempt that was never properly closed. If you're not sure whether a well on your property was ever sealed, that's worth checking before you drill a new one nearby or sell the land.
When Does Abandonment Come Up in a New Drilling Project?
A few situations where this comes up alongside other well work:
- Replacing a failing well with a new one in a different spot on the same property
- Buying land with an unmarked or unknown old well on it
- Consolidating multiple older wells into a single modern well and pump system
- Clearing a site before construction where an old well sits in the footprint
In each case, the old well needs to be closed out properly — it isn't optional groundskeeping, it's part of finishing the job correctly.
Where Does Langford Drilling Handle Well Abandonment?
We handle well abandonment throughout our regular service area — Cedar City, Iron County, and out to Washington, Beaver, Kane, Garfield, Piute, and Wayne counties, including the areas around St. George and Richfield. See our full locations list to check coverage near you. If you're dealing with an old well and aren't sure whether it needs to be sealed, rehabilitated, or left alone, that's a conversation worth having before you do anything else with the site. You can also see our credentials for background on who's doing the work.