Protecting Your Private Well on the Mississippi Gulf Coast

Protecting Your Private Well on the Mississippi Gulf Coast: A Homeowner's Guide

If your home runs on a private well, keeping that water safe is up to you. In Mississippi, private well owners are responsible for their own water quality, including how the well is built, how it's maintained, and how often the water is tested.

The good news is that most protection comes down to a few habits. This guide explains private well protection in plain terms, with examples that fit Gulf Coast properties from Bay St. Louis to Pascagoula.

What Is Wellhead Protection?

Wellhead protection means keeping contaminants away from the top of your well and the ground around it. The wellhead is the part you can see: the casing pipe, the cap, and the concrete pad at its base.

That area matters because it's the easiest path for surface water to reach your drinking water. Rain runoff, floodwater, fertilizer, fuel, and septic waste can all travel down a poorly sealed casing. A well that's sealed and capped correctly keeps that water out.

Good wellhead protection includes:

• A secure, vented well cap. The cap keeps out insects, small animals, and surface water. Check that it's in place and tight.
• A sound casing. Look for cracks or holes. If the casing moves when you push on it, have it checked.
• A concrete pad around the base. The pad helps shed water away from the casing.
• Ground that slopes away from the well. Water should drain away from the wellhead, not pool around it.
• A clean well area. Keep paint, fuel, pesticides, and other chemicals out of the well house and away from the well.
  

Protecting Your Private Well: Habits That Matter Most

Most of protecting your private well is everyday upkeep:

• Test your water at least once a year. At a minimum, test for bacteria and nitrates.
• Keep the septic system working well. A failing septic system is a common risk to nearby wells.
• Mix chemicals away from the well. Fill sprayers at the point of use, not at the wellhead.
• Prevent backflow. Never leave a hose sitting in a chemical tank, bucket, or pool. Backflow preventers on outdoor spigots help stop dirty water from being pulled back into your plumbing.
• Keep records. Save your well construction details, water test results, and service dates. They help a technician find problems faster.
  

Test more often if anyone in the home gets sick without a clear cause, if someone is pregnant, or if the water changes in taste, smell, color, or clarity.

Private Water Well Setback Distances

A setback distance is the minimum space between your well and something that could pollute it. Farther is always better.

The Mississippi State Department of Health requires a new well to be at least 50 feet from a septic tank and at least 100 feet from a septic drain field. MSU Extension also publishes a broader setback chart as a guide. Common examples from that chart:

Shallow wells may need even more space. Extension notes that a well with less than 50 feet of watertight casing, and no thick clay layer above the water, should be twice as far from these sources.

If your well was built decades ago, it may not meet today's standards. That doesn't make it illegal, but it's worth having it inspected.

Routine Well and Pump Maintenance

A well system includes more than the hole in the ground. Your pump, pressure tank, pressure switch, and wiring all wear over time. Routine maintenance may include:

• Checking the cap, casing, and pad for damage
• Testing pressure-tank air charge and pressure-switch settings
• Listening for unusual pump noises or rapid cycling
• Inspecting wiring and electrical connections
• Checking water flow and well performance
  

Older wells deserve extra attention. Extension notes that wells even 30 to 40 years old may have corroded casing, and very old wells are more likely to be shallow and close to pollution sources.

Warning Signs That May Call for Pump or Well Service

• Low, weak, or changing water pressure
• The pump turning on and off rapidly (short-cycling)
• Sputtering faucets or air in the lines
• No water at all
• Sand, sediment, or cloudy water
• A new taste, smell, or color
• An unexplained jump in your electric bill
• A positive bacteria test
  

Some problems aren't what they seem. Low pressure may come from a pressure tank or switch, not the pump itself. A good technician diagnoses before replacing parts.

Abandoned Wells Need to Be Sealed

Many older Gulf Coast properties have an old, unused well. An open or poorly sealed abandoned well gives surface water a direct path into the aquifer. It's also a safety hazard for children and pets.

Mississippi allows homeowners to seal a well themselves, but they must meet MDEQ requirements and file a report. Extension recommends hiring a licensed driller or pump installer, since proper sealing takes special equipment and know-how.

Where to Find Groundwater Permit Guidance and Licensed Water Well Drillers

The Mississippi Department of Environmental Quality's Office of Land and Water Resources licenses water well drillers and pump installers. MDEQ keeps a current list of licensed water well drillers on its Water Well Drillers page, along with forms and contact information.

For groundwater permit guidance, start with MDEQ or a licensed driller who works in your county. For water testing, MSU Extension points well owners to the Mississippi State Department of Health and the Mississippi Well Owner Network.

When to Call a Local Well Professional

Call a licensed local well service when:

• Your water test shows bacteria or high nitrates
• Floodwater has reached your wellhead
• You see any of the warning signs above
• Your well cap, casing, or pad is damaged
• You're buying a home with a private well
• You have an old or abandoned well to seal
• You're planning new water well drilling or adding irrigation
  

Coast Water Well Service, Inc. has provided water well drilling, pump service, and well inspections on the Mississippi Gulf Coast since 1962. We're a Mississippi DEQ Unlimited Licensed Contractor serving Jackson, Harrison, Hancock, George, and Stone Counties with in-house crews.

Frequently Asked Questions

Schedule Well Service or an Inspection

Protecting your private well is easier when someone local is keeping an eye on it. Call Coast Water Well Service at (228) 826-9275 or request a free consultation.

Sources: Protecting Your Private Well, MSU Extension (P1872); Wellhead Protection, MSU Extension (P1815); Private Water Well Setback Distances, MSU Extension (P3319); Water Well Drillers, MDEQ.