Why a Perc Test Matters for a Septic System Installation

perc text, septic perc test, percolation testYour property may require a septic system installation if the home is not connected to a municipal sewer line. However, the land may not be suitable for accommodating such a system. The only way to find out is via a perc test.

What Is a Perc Test?

Technically known as a percolation test, a perc test examines the rate at which water drains through the soil. The test is quite simple. A small hole is drilled into the soil and water is poured into it to evaluate how quickly the water drains away.

Typically, soil with a high concentration of sand passes the perc test easily. Those with a heavy silt or clay composition are more prone to compaction and, thus, more likely to fail the test.

Why A Perc Test Matters

The soil the septic system is buried under acts as the drain field. When the septic tank breaks down the effluent, it distributes the black water into the soil. The soil and its aggregate act as a filter that traps harmful bacteria before releasing the water into the water table.

Failed a Perc Test?

If your land fails a percolation test, does that mean a septic tank is out of the question? Don’t give up just yet. It’s possible to appeal the results at your local health department. You can also perform a second test at a later time of year. The degree of soil compaction, which affects the drainage rate, is heavily dependent on the season.

We Perform Perc Tests

We conduct a perc test, though some homeowners opt to perform their own test beforehand. We can also examine soil quality as part of a septic system inspection or repair. Give Woodinville Septic Service a call to enquire about an installation. A perc test will determine your land’s eligibility.

Residential Septic System Installation

Serving Woodinville, Redmond, Kirkland, Bothell, Mountlake Terrace, Bellevue, Sammamish, Duvall, Issaquah, Snoqualmie and more