Fecal coliform from a failed septic system on Purdy Spit, Wash., threatened a potable well and a commercial oyster farm a mile away in Puget Sound.George Waun, environmental health specialist II at the Tacoma-Pierce County Health Department, knew no ordinary solution would meet code based on designs he had approved for neighboring systems. He worked with Andrew Gunia, owner of A Advanced Septic Services, a company in Puyallup, Wash.Gunia had recently installed the first BioBarrier membrane bioreactor from Bio-Microbics in the state. “We were confident the technology would protect the sensitive waters,” he says. The unit is NSF/ANSI certified to
