A percolation test (or "perc test") measures the rate at which water drains through the soil. In Andover, as in the rest of Massachusetts, this test is mandatory for the design, repair, or replacement of a . The results determine the size of the leaching field required to safely treat wastewater before it re-enters the groundwater.

As a homeowner or builder in Andover, Massachusetts, it's essential to understand the importance of percolation tests in ensuring the proper functioning of septic systems. A percolation test, also known as a perk test, is a crucial evaluation that determines the soil's ability to absorb and filter wastewater. In this article, we'll delve into the world of percolation tests in Andover, exploring their significance, the testing process, and what to expect.