In this episode Dawn Nall from the Southwest Environmental Finance Center interviews Sarah Diefendorf and Elaine McCarty from the EFC West, or soon to be Capacity Collaborative, on the impact unknowns have on septic systems and the communities they influence. Septic systems are an important tool used to meet the wastewater needs of many communities and individuals that can't access centralized wastewater treatment, but due to their nature as private systems officials and even the owners themselves often don't know the full extent of their functionality. Sarah and Elaine discuss strategies for addressing these knowledge gaps and the importance in protecting public and environmental health from septic issues.