How Well Drilling Works and What to Expect in South Carolina

What a well drilling company does

A well drilling company drills into the ground to reach groundwater and install a system that brings it to your home or business. In South Carolina, where municipal water service doesn't reach every property, private wells serve rural homes, farms, and some suburban areas. The driller locates water, determines the depth needed, installs casing and a pump, and tests the water before you use it.

The process typically takes several days to a few weeks depending on how deep the water table sits in your area and whether the driller hits rock or other obstacles. Once the well is complete, you own and maintain it—the state doesn't run it, and you're responsible for testing and upkeep.

Key Takeaways

• Well drilling depth varies across South Carolina; coastal areas and the Lowcountry often need shallower wells, while the Piedmont and upstate may require drilling deeper.
• Before drilling begins, a well contractor should help you understand local groundwater conditions, setback requirements from septic systems, and whether your property has water rights.
• South Carolina requires well water testing for bacteria and nitrates before use, and homeowners must test periodically afterward to catch contamination early.
• The total cost depends on depth, rock conditions, pump type, and whether you need a pressure tank or filtration system installed alongside the well.
• Permits from your county health department are required before drilling starts, and inspections happen after completion to verify the well meets state standards.

How to find a licensed well driller in South Carolina

South Carolina requires well drillers to hold a license from the Department of Health and Environmental Control (DHEC). You can search for licensed contractors through DHEC's website or ask your county health department for a list of drillers who work in your area. Local recommendations from neighbors or your septic system installer are also reliable—well drilling and septic work often go hand in hand on rural properties.

When you contact a driller, ask whether they've worked on properties near yours and what depth they typically encounter. A driller familiar with your neighborhood's geology can give you a realistic estimate of cost and timeline. Get at least two quotes before deciding, and make sure each one includes the well itself, casing, pump installation, and initial testing.

Permits and inspections before drilling

Your county health department issues the permit that allows drilling to begin. You'll need to provide property information, the proposed well location, and details about any septic system or other water source on the land. The health department checks that the well location meets setback distances—typically at least 50 feet from a septic tank and 100 feet from a septic drain field, though distances vary by county.

After the well is drilled and the pump is installed, a health department inspector visits to verify the work meets state standards. The inspector checks the casing, the seal at the top of the well, the pump installation, and the overall construction. The well cannot be used for drinking water until the inspector approves it and water testing is complete.

Water testing requirements and what they check

Before you use the well, DHEC requires testing for total coliform bacteria and nitrates. You send a water sample to a state-certified lab, which costs between $25 and $75 depending on what tests you order. The lab results come back within a few days, and if bacteria or nitrates are present above safe levels, you'll need to disinfect the well or install treatment before drinking the water.

After the initial test passes, South Carolina recommends testing once a year, especially if you notice changes in water taste, smell, or appearance. If you have a septic system nearby, test more often—septic failure can contaminate groundwater. You can order tests through your county health department or directly from a certified lab.

Depth, geology, and what affects drilling cost

How deep a driller must go depends on where your property sits. In the Lowcountry and coastal areas, the water table is often shallow—20 to 40 feet down. In the Piedmont and upstate, water may be 100 to 300 feet deep or more. Rock formations also matter: sandy soil drills faster and cheaper than clay or bedrock, which requires more powerful equipment and time.

The driller will do a site assessment and may use geological maps or neighboring well records to predict depth before quoting a price. Most contractors charge by the foot once drilling starts, with a base fee for mobilization and equipment setup. If the driller hits unexpected rock or needs to go deeper than estimated, costs rise. Discuss what happens if depth exceeds the estimate before work begins.

Pump systems and water delivery to your home

Once the well reaches water, a pump brings it to the surface and into your home's plumbing. The most common type is a submersible pump, which sits inside the well casing and pushes water up. The pump connects to a pressure tank in your home or a nearby building, which stores water and maintains pressure so water flows when you turn on a tap.

The driller installs the pump, pressure tank, and any filtration or treatment equipment as part of the job. If your water has high iron, sulfur, or sediment, you may want a filter installed immediately. The contractor should explain how to maintain the pressure tank and when to have the pump serviced. Most pumps last 15 to 25 years with proper care.

Ongoing maintenance and when to call a contractor

After the well is installed, you maintain it. Check the pressure tank gauge monthly—it should read between 40 and 60 pounds per square inch. If pressure drops, the tank may need air added or repair. Have the pump serviced every few years, and keep the area around the well clear of debris and chemicals.

Call a well contractor if water pressure drops suddenly, water becomes cloudy or discolored, or you notice a change in taste or smell. These signs can mean the pump is failing, the pressure tank needs repair, or contamination has entered the well. Annual water testing catches many problems before you notice them in your tap water.

Frequently Asked Questions

How long does it take to drill a well?

A shallow well in sandy soil may take one to two days. Deeper wells or those that hit rock can take a week or longer. After drilling, the inspector must approve the work and water testing must pass before you can use it, adding another week or two to the total timeline.

What if my well runs dry?

Dry wells are rare in South Carolina but can happen during severe drought or if the water table drops. A driller can deepen an existing well or drill a new one nearby. Discuss this risk with your contractor before drilling, especially if your property is on a hilltop or in an area with known low water tables.

Can I drill a well myself?

No. South Carolina law requires a licensed driller to install a well. The permit process, inspection, and testing all depend on a licensed contractor doing the work. Unlicensed drilling can result in fines and a well that fails inspection.

What does well water cost compared to city water?

Initial drilling costs range widely based on depth and geology, but ongoing costs are low—mainly electricity to run the pump and occasional maintenance. You pay nothing for the water itself. City water includes a monthly bill but no drilling cost upfront.

Do I need a water softener or filter?

That depends on your water test results. If tests show high iron, hardness, or sediment, a filter or softener makes sense. Your driller or the testing lab can recommend treatment based on what's in your water. Some systems are installed during drilling; others are added later.