Water 4.0

Guest: David Sedlak, PhD, Professor of Environmental Engineering at the University of California Berkeley and Author of Water 4.0  You turn on the tap, and voila, water flows. Unless our rates go up or the government imposes restrictions about when we’re allowed to water our lawns, we don’t really give the system of water much thought.  How, exactly, does it get to our faucets and spigots? And where does it go when we flush it away?