More people bring more waste. And when BMSC was first established 50 years ago, it treated its human waste by installing an aeration-type sewage plant purchased second-hand from the Franklin River logging camp. “It worked really well,” says Brad Anholt, who was BMSC’s director from 2009 to 2017[LEO1] . Consultants had periodically checked on it, and despite its rusty framework, the system continued to work for decades. Nearly fifty years on, however, “it was on its very last legs,” says Anholt.