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Which acts to protect rivers and lakes, and sources of Drinking Water. The second was the Safe Drinking Water act, that provides federal standards to assure the safety of the water that we drink. Both acts have been amended since they were first adopted, and theyre both cornerstones for the water issues that we face in america today. Allbee the clean water act set a floor and basically said, everybodys whos discharging is going to have to have a permit, and to achieve this defined performance level. Narrator the clean water act regulates the discharge of pollutants into surface waters across t...

They could last centuries. But the mechanical equipment within them will not. Engineers in the 1950s discovered rust on the tunnels valves. There were concerns that if they closed the valves for tunnel inspections, they may never open again, leaving new york city without water. So they chose to keep them open. As a result, there has not been significant inspection, maintenance, or repair of the tunnels in decades. No one knows their current condition. Hurwitz currently, city tunnel 1 and city Tunnel Number 2 would be feeding each half of the city. So youd lose half the city if you didnt have a...

They could last centuries. But the mechanical equipment within them will not. Engineers in the 1950s discovered rust on the tunnels valves. There were concerns that if they closed the valves for tunnel inspections, they may never open again, leaving new york city without water. So they chose to keep them open. As a result, there has not been significant inspection, maintenance, or repair of the tunnels in decades. No one knows their current condition. Hurwitz currently, city tunnel 1 and city Tunnel Number 2 would be feeding each half of the city. So youd lose half the city if you didnt have a...

That making any accommodation to shut it down, to do something to it, is very difficult. Narrator two Massive Underground tunnels, called simply tunnel 1 and tunnel 2, provide most of the citys water supply. They run hundreds of feet below manhattan, far deeper than the subways. Built at the beginning of the 20th century, they are concretelined and bored through solid rock. They could last centuries. But the mechanical equipment within them will not. Engineers in the 1950s discovered rust on the tunnels valves. There were concerns that if they closed the valves for tunnel inspections, they may...

That is one of the main reasons why we have to close the beaches after heavy rain. Narrator but even when its not raining, water still enters the stormwater system, carrying pollutants. Here on the west coast, a lot of our storm drain systems are separate from the sanitary sewer system, so if you dump something in the storm drain, it goes right to the ocean untreated. Alamillo we havent had a major rainstorm in the last year or so yet theres a lot of water in this creek here. I would say 20 of it is natural and the other 80 is runoff. Shapiro the purpose of the smurrf is to treat dry weather r...