A: For a true percolation test, often done during construction or installation of a septic system, a hole approximately 1 foot in width and depth is dug. Once filled with water, if it drains at a rate ...
Leonardtown, MD – The St. Mary’s County Health Department (SMCHD) will suspend wet season perc testing effective May 9, 2025, due to declining groundwater levels observed in the county’s network of ...