SFGTV2 September 11, 2013
And sources of Drinking Water. Far deeper than the subways. The second was the Safe Drinking Water act, built at the beginning of the 20th century, that provides federal standards to assure the safety they are concretelined and bored through solid rock. Of the water that we drink. Both acts have been amended since they were first adopted, they could last centuries. But the mechanical equipment within them will not. And theyre both cornerstones for the water issues engineers in the 1950s that we ...
Source: archive.org