We re-encapsulated the crawlspace using a 16-mil liner, removed the moldy sub-floor insulation, remediated the organic growth, replaced with dry insulation, used spray polyurethane foam insulation on the rim joists to seal out moisture, installed Aprilaire 1850 and Aprilaire 1820 dehumidiers, installed a condensate pump to channel the dehumidifer water out of the crawlspace, and installed a sub-slab/sub-membrane radon mitigation system in the basement and crawlspace which brought the radon level down to 0.5 pCi/l. We also finished off the basement with a 16-mil FinishSheild Wall Liner to keep it dry.