If TL-3 is not resinded two things should happen.

First all TL-3 products should go through recertification in VA with units that are less than a year old. There have been many changes to the original products that 'passed' before. Geotextiles have changed, legs added, media from a different source etc. The state also needs to survey the testing participants (homeowners) to make sure nothing special was done before sampling day. The state should also monitor at least one cycle.

Second. If TL-3 is not resinded, or made not generally approved, there should be a choice, closer to the water table or restrictive with UV OR smaller footprint, never both.