Jim Anderson, Ph.D., is an emeritus professor at the University of Minnesota Department of Soil, Water and Climate and recipient of the pumping industry’s Ralph Macchio Lifetime Achievement Award. Email Jim questions about septic system maintenance and operation at editor@pumper.com.
“How were the separation distances from the bottom of the sewage treatment trench or bed to limiting soil layer determined?” This is a question I receive often, and one primary reason why is the variation in state and local code requirements for separation distances.
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