Service Areas & Locations for Southern MD Septic Services

At Southern Maryland Septic Services, we are committed to providing reliable, professional, and efficient septic solutions to homeowners and businesses throughout the region. With our headquarters located in Owings, MD, we are strategically positioned to offer 24/7 emergency support and scheduled maintenance across the heart of Southern Maryland.

Counties We Serve

We proudly provide comprehensive septic and excavation services to the following counties:

  • Calvert County: From Dunkirk down to Solomons, we are your local experts for septic pumping and repairs.
  • Charles County: Serving Waldorf, La Plata, and surrounding communities with expert system installations.
  • St. Mary’s County: Providing Hollywood, Leonardtown, and Mechanicsville with top-tier maintenance and inspections.
  • Prince George’s County: Extended service for Southern PG residents, including Upper Marlboro and Brandywine.
  • Anne Arundel County: Specialized services available for Southern Anne Arundel coastal and rural properties.


southern md septic services map

Our Primary Office Locations

Headquarters & Showroom

Address: 230 Skipjack Rd, Owings, MD 20736

Hours: Monday – Saturday: 7:00 AM – 5:00 PM

Phone: 410-858-7982

Second Location

Address: Grovers Turn Rd, Owings, MD 20736

Please note: Our field technicians are dispatched from multiple points to ensure prompt arrival at your property.

Why Location Matters for Your Septic System in Southern MD

Southern Maryland’s unique geography—ranging from coastal lowlands to rural farmlands—requires a septic partner who understands local soil types, water tables, and environmental regulations.

Whether you are located near the Patuxent River or inland in Charles County, our team ensures your system is compliant with Maryland's environmental standards, including specialized Nitrogen Reduction (BAT) systems common in the Chesapeake Bay watershed.



  • How often should I have my septic tank pumped?

    For most households in Calvert, Charles, and St. Mary’s counties, we recommend pumping every 3 to 5 years. However, this depends on the size of your tank and the number of people living in your home. Regular pumping prevents solids from escaping into your drain field, which can cause total system failure.

  • How can I tell if my septic system is failing?

    Common warning signs include:


    • Slow-draining sinks, tubs, or toilets.
    • Gurgling sounds in the plumbing.
    • Sewage odors inside the home or in the yard.
    • Unusually lush, green grass or standing water over the drain field.

  • Can I use "septic additives" instead of pumping?

    We generally advise against relying on additives. While some products claim to break down solids, they cannot replace the physical removal of sludge and scum that occurs during a professional pump-out. In some cases, additives can actually stir up solids and push them into your drain field, causing clogs.

  • What should I do if my alarm goes off?

    If your septic alarm sounds (usually a red light and a buzzer), it means there is a high water level or a pump failure. Immediately reduce water usage—stop laundry, dishwashers, and long showers—and call us at 410-858-7982. We offer 24/7 emergency response for these exact situations.

  • What is safe to flush down the drain?

    The rule of thumb is: Only flush the "Three Ps" (Pee, Poop, and Paper). * NEVER flush: "Flushable" wipes (they don't actually break down), grease, feminine products, paper towels, or chemicals like bleach and paint thinner.


    Garbage Disposals: Use them sparingly. They increase the amount of solids in your tank by up to 50%, requiring more frequent pumping.

  • What is a BAT system and do I need one?

    A Best Available Technology (BAT) system is a specialized unit designed to reduce nitrogen discharge into the Chesapeake Bay watershed. If you are building a new home or replacing a failing system within the "Critical Area" (typically within 1,000 feet of tidal waters), Maryland law may require a BAT unit. We are certified to install and maintain these systems.

  • Can I drive or build over my septic tank?

    No. Driving vehicles or heavy equipment over your tank or drain field can crush pipes and compact the soil, ruining your system's ability to filter wastewater. Keep the area clear of structures, decks, and even deep-rooted trees.

24/7 Emergency Service


Septic issues don't follow a schedule. If you are experiencing a backup, foul odors, or a saturated drain field, our local crews are on standby.




Call 410-858-7982 immediately for emergency dispatch.