What is a perc test and why do I need it?

A percolation test, or perc test, is a procedure performed to review water drainage in different soils. It is important for many uses, such as when designing a leach field for a septic system, planning a building design, or considering agricultural use of the land. If the water cannot drain properly, a swamp of sewer water will result. This is a foul-smelling health hazard that could cost you thousands of dollars to correct, or ruin your house or farm entirely.