In land development and real estate, various tests play pivotal roles in determining a property’s usability and potential uses. Among these, the “Perc Test” stands out as a critical evaluation, specifically for properties seeking septic system installation. But what exactly is a “Perc Test”, and why is it essential? In LandBriefs first guide, we’ll dive into the complexities of Perc Tests, their significance, and the process involved.
What is a Perc Test?
A “Perc Test”, short for percolation test, is a way to determine the amount of water absorbed by the soil in a designated area. The short definition of percolate is to filter gradually through a porous surface. This test is crucial in determining a site’s ability to support a septic system. It is always a good idea to get a soil engineer to the property you intend to buy. A couple hundred dollar investment could potentially save you thousands.
Importance of Perc Tests:
- Determining Feasibility for Septic Systems: Perc Tests help landowners and developers discover whether a property can support the installation of a septic system for wastewater disposal. Typically found in areas not close to or connected to a city sewer system.
- Protecting Environmental Health: Ensuring that septic systems are installed on suitable soils helps prevent environmental contamination. A failed septic system due to inadequate soil absorption can lead to groundwater pollution, posing risks to public health and natural ecosystems.
- Compliance with Regulations: Many local regulations mandate Perc Tests as part of the build process, especially for properties reliant on septic systems. Compliance with these regulations is crucial for obtaining necessary permits and approvals for construction projects.
- Preserving Property Value: Conducting a Perc Test early in the due diligence process can prevent costly setbacks later on. Discovering soil inefficiencies can save you thousands of dollars, and a big headache down the line. As sometimes, it directly affects the property value.
The Perc Test Process:
- Site Preparation: The dig sites will be cleared of all vegetation down to the surface of the ground.
- Test Hole Digging: The test holes are typically 6-12 inches in diameter, and 18-36 inches deep. With multiple test sites in the general area of the build site.
- Water Saturation: The test holes are filled with water, allowing them to saturate overnight or for a specified period.
- Percolation Measurement: Once saturated, the water level in the test holes is measured, and then a specific amount of water is added. The time it takes for the water to percolate into the soil is recorded.
- Calculating Percolation Rate: The percolation rate, often expressed in minutes per inch, is calculated based on the time taken for the water to drop a certain distance in the test holes.
Understanding Perc Test Results:
- Fast Percolation: A rapid percolation rate indicates well-draining soil, which is favorable for septic system installation.
- Slow Percolation: Slow percolation rates suggest poorly draining soil, posing challenges for septic system installation. Additional measures may be necessary, such as alternative septic system designs or site modifications.
- Regulatory Compliance: Perc Test results must meet local regulatory requirements for septic system installation. Failure to meet these standards may necessitate further assessments or design adjustments.
Conclusion:
In conclusion, a Perc Test serves as a fundamental assessment in land development, particularly for properties requiring septic system installation. By evaluating soil permeability, Perc Tests help determine the feasibility of septic systems, ensure environmental protection, and facilitate regulatory compliance. Understanding the Perc Test process and interpreting its results accurately are crucial steps in land evaluation and development, safeguarding both public health and property investments.
Authors Note:
If you are looking to purchase a property to build your dream home, please order a perc test as part of your due diligence process. I have seen many landowners, and even land investors skip over this crucial aspect of land development. By evaluating the soil, you will know which septic system you will need installed for your property. The value of your land may also be affected if you decide to not build. Finding a soil scientist is usually fairly easy as well.