Engineered Mound Septic System Design in Alabama
What is an Engineered Mound Septic System?
Mound septic systems are engineered to treat and dispose of wastewater when traditional septic systems are not suitable due to site conditions such as high groundwater, shallow bedrock, or inadequate soil absorption.
How Does an Engineered Mound Septic System Work?
The basic design of a mound septic system involves creating a raised bed or “mound” of sand or other suitable fill material over the native soil. The mound is typically about three to four feet high and covers an area that is larger than the footprint of the house or building being served.
The system begins with the collection of wastewater from the building, which flows into a septic tank. In the septic tank, solids settle to the bottom and are broken down by bacteria. The liquid effluent then flows into a distribution box that distributes the effluent evenly over the surface of the mound.
As the effluent percolates through the sand or other fill material in the mound, it is filtered and treated by microorganisms that live in the soil. The treated effluent then passes through a layer of gravel or other suitable material, which acts as a final filter, before it is discharged into the native soil or an approved disposal area.
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Mound Septic System Maintenance
Mound septic systems require regular maintenance, including periodic pumping of the septic tank and inspection of the distribution system and mound. Proper maintenance is important to ensure that the system continues to function effectively and prevent any environmental or health hazards.
State & Local Regulations
It’s important to note that perc test requirements can vary by state and local regulations, so it’s important to consult with a licensed professional to ensure that the test is conducted in compliance with all relevant codes and standards.
Looking for more information on Alabama Regulations and Percolation Test? Here’s a good article from Alabama Public Health.
Local Regulatory Authority Approval
It’s important to note that the design of an engineered septic system must be approved by the local regulatory authority to ensure that it meets all the relevant codes and standards. Mid-South Testing’s experienced professionals can properly design and an engineered mound septic system for your specific site conditions and provide you with a list of local licensed professionals for installation.