Brock Environmental Center
... that with two 1,600-gallon (6,056-liter) cisterns and a filtering system, Brock Environmental Center is the first project in the US to receive a commercial permit to use rainwater as drinking water?
... that with two 1,600-gallon (6,056-liter) cisterns and a filtering system, <b id="mwCos"><a href="./Brock_Environmental_Center" id="mwCow" rel="mw:WikiLink" title="Brock Environmental Center">Brock Environmental Center</a></b> is the first project in the US to receive a commercial permit to use rainwater as drinking water?