The “perk” test method for POWTS suitability has been replaced, since 1994, with a more accurate means of soil and site evaluation. Today, the soil testing procedure is done by means of a morphological evaluation.
After the soil and site evaluations have been conducted by the soil tester, the results of that soil and site evaluation are to be sent to the county reviewing authority. Once reviewed by the county reviewing authority and the soil and site evaluations are found to be acceptable for completeness, they are then filed for use with a future sanitary permit for the property tested.
The soil and site evaluations (soil tests) are good for as long as the administrative rule that governs them remains in effect. If there is a significant rule change that affects the evaluation process or results of previously completed tests, a new test may have to be done.