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Moriarty our goal with Surfrider Foundation is essentially to have the city understand that the water is, in fact, dirty, and then work with the infrastructure and the various issues to change that. Narrator but building more systems and more plants cant work alone as a sustainable solution. And, as in pittsburgh, as in new york, part of the answer lies in protecting the watershed. Nelsen we need to reduce the amount of impervious surfaces in our watershed, which are surfaces that dont let the water soak in and then create more pervious surface, whether its by having driveways that allow water...

We started on this project in 1969. Im a sandhog. Ive been a sandhog for 37 years. Narrator sandhogs are the men of local 147, who work deep below the city. They began building the infrastructure of new york in 1872. From the subways to the sewers, the water tunnels to the highway tunnels, new york city thrives because of their work. Ryan you got one little hole in the ground, and nobody knows were here. See the empire state building, right. Thats 1,000 feet. So you figure, you go down 1,000. How high that is thats how far we go down. Narrator stretching more than 60 miles under the city, tunn...

In the 70s, we lost a man a mile basically. Here, maybe weve had two or three deaths in the last 20 years, which is too much anyway, but its cut down a lot. Hurwitz city Tunnel Number 3 will be an opportunity to take city tunnel 1 out of operation and rehabilitate it. City Tunnel Number 1 had one valve to shut off the whole tunnel. City tunnel 2 had two parallel valves. City tunnel 3 has 32, so theres much more redundancy. Lloyd were targeting a completion date of 2012 for tunnel 3. And we already are starting to prepare to take tunnel 1 offline. Narrator the construction of tunnel 3 is vital ...

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...

Ends up in catch basins, storm drains, into our storm drain system, and for some of the city, parts of the city, it ends up here at smurrf. 350,000 gallons come here on a daily basis, producing recycled water, and that can be reused for landscape irrigation and indoor toilet flushing. The pumps can only handle so much water, which is generally when its not rain, the dryweather runoff, so if you get a storm of a decent size, the pumps will shut down automatically and the water will just continue to flow out into the ocean and it carries a lot of bacteria and people can get sick when theyre swim...