Before installing a septic leach field or drain field, a percolation test must be performed to determine whether the soil is suitable for the type of septic system being installed. This avoids soil saturation and ensures a properly functioning and long-lasting septic system.
What is a Percolation “Perc” Test?
A percolation test, often referred to as a “perc test,” determines the soil absorption rate before installing a septic system. Perc tests are essential for an efficient, long-lasting septic system, particularly for areas without municipal sewer systems. A professional septic company digs a test hole where the septic system will be installed and then fills it with water to saturate the surrounding soil. The percolation rate assesses soil absorption by measuring the water migration rate through the soil at regular intervals.
The final perc rate calculates between 1 and 60 minutes per inch, indicating how long it takes for the water to drop one inch. Perc tests gauge the type of septic system and tank size suitable for installation in the drain field or soil absorption area. If the soil percolates too slowly or too quickly, it may not be an appropriate site for a conventional septic system.
The Importance of Perc Tests for Long-Lasting Septic Systems
Before installing a septic system, a percolation test is crucial for ensuring that the leach field can adequately absorb and filter the wastewater. Percolation tests are not only required for public health and environmental safety but are also essential for ensuring your septic system remains efficient and functional in the long term. Percolation tests offer numerous benefits for septic systems, including:
- Ensures proper septic system design
- Prevents environmental contamination
- Reduces the risk of system failure
- Compliance with local regulations
- Increases property value
- Cost savings
- Long-term reliability and efficiency
The link between percolation tests and a long-lasting septic system is no secret, except that they provide sustainable wastewater management practices. Ensuring that your leach field aligns with regulatory standards and environmental requirements, you can significantly extend the lifespan of your septic system.
Soil Absorption Assessment
The soil absorption rate determines how quickly the soil absorbs and filters wastewater in the leach field. An unsuitable percolation rate can lead to septic system failure, groundwater contamination, and health and environmental hazards.
Septic System Design
The percolation test results help conclude the proper tank size and septic system type appropriate for the drain field. Professional septic companies will adequately match the septic system design to ensure efficient wastewater treatment and minimize septic maintenance issues.
Preventing System Overload
Proper percolation tests ensure that, once the septic system is installed, there will be no issues regarding wastewater overload in the leach field. If the soil absorption rate is not suitable, sludge and scum can accumulate in the drain field, causing septic system overload. This overload can result in untreated wastewater rising to the surface and potentially backing into the home.
Environmental Protection
Percolation tests are crucial to ensure an adequate septic system, protect human health, and safeguard the environment. When untreated sewage is released into the atmosphere, local surface water bodies and drinking water sources are at risk of contamination. Groundwater contamination from untreated sewage can contaminate local water sources with harmful pathogens, chemicals, and nutrients. These pathogens can include E. coli, as well as nutrients such as nitrogen and phosphorus discharges.
Untreated wastewater on someone’s property also poses a risk of waterborne diseases, including campylobacteriosis, cryptosporidiosis, Escherichia coli diarrhea, gastroenteritis (also known as stomach flu), and hepatitis A. A properly installed septic system with a perc test should not pose a threat to public health or environmental safety.
Avoiding Costly Repairs and Maintenance
A perc test ensures a septic system is suitable for the soil conditions, significantly reducing the likelihood of system problems and the need for costly repairs. While regular drain field and septic system maintenance are essential, systems that are adaptable to the environment typically require less upkeep and have fewer operational issues.
Compliance with Regulations
Percolation tests are a regulatory requirement before installing a septic system on your property, ensuring compliance with public health and environmental safety standards. Septic system failures and overloads can lead to the release of numerous disease-causing pathogens and contaminants into the environment. If your property passes a percolation test, the septic system designed for your property meets local health and building codes and will not cause any legal consequences or health hazards.
Ensuring Septic System Longevity
If the soil absorption rate is inadequate for the septic system, this can pose significant health hazards, environmental issues, and functional problems. Drain field problems can lead to septic tank blockages and potentially result in septic system overload and failure. A healthy-functioning soil absorption system reduces septic system problems, lowers maintenance costs, and prolongs the lifespan of your septic system.
Septic Tank Installation in Metro Atlanta, GA
Contact Central Septic today for septic tank installation in Lilburn, GA, and the metro Atlanta areas! Our team of professionals, with over 35 years of expertise, offers the lowest prices for septic tank installation in metro Atlanta. From septic tank pumping and cleaning to leach field maintenance and repair, Central Septic and Plumbing ensures 100% customer satisfaction.
Contact us today for a free estimate on septic tank installation in Atlanta!
References:
- United States Environmental Protection Agency, 1999. Decentralized Systems Technology Fact Sheet: Septic Tank – Soil Absorption Systems.
- United States Environmental Protection Agency, 2023. How Septic Systems Work.
- Indiana Department of Health. Diseases Involving Sewage.
- United States Environmental Protection Agency, 2023. Septic System Impacts on Water Sources.
- American Society for Microbiology, 2021. Pathogenic Escherichia coli Found in Sewage Treatment Plants and Environmental Waters.
