Dear Anne,
I keep hearing that my lot needs a perc test. What is this and why is it even necessary?
-Puzzled in Potomac

A: Dear Puzzled,
A perc test is also known as a Percolation Test and is a very important aspect of the lot buying process. We would like to see a perc test done on every single lot before it is purchased. Essentially, the test determines the absorption rate of the soil for a "leach field" or septic drain field. The reason that this examination is so vital is because it reveals the lot's soil quality. All bacteria type organisms that enter the septic tank will eventually need to be removed from the house and stored in the leach fields. These fields will allow the materials to separate from the water so that the water can be relinquished into our environment. This test doesn't only improve the quality of life in your home, but it also allows the environment to extract the water and put it back into the natural cycle. So remember, never bypass this step, and always get a perc test before you close on buying a lot!
- Anne

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