hurwitz: the city bought up land around the reservoirs to prevent it from development. it provides assistance to local residents to see that there's no pollution of the reservoirs. it's much more cost effective to prevent pollution and to protect a source of water than to remove it at the drinking water treatment plant. lloyd: what epa said to us was, "you can have an exemption from filtration "if you keep this undeveloped, "and if you can manage the wastewater so that it does not pollute your water supply." and we feel that we've reached the point where we can really keep it clean enough to drink unfiltered for the indefinite future. and new york city is in a small club of cities that actually have that filtration avoidance waiver. narrator: while municipalities are responsible for maintaining systems and source supply, the standards that protect water are established at the federal level. there are two important pieces of federal legislation that were both enacted in the early to mid-1970s. the first was the clean water act, which acts to protect rivers and lakes, and

is chief opponent was tom hurwitz. is equal in intellectual precocity and love of a good fight, the impromptu discussions often ended in shouting matches between the two. a hot topic was cuba and fidel castro who had come to power in 1959. most students are him as a romantic revolutionary bringing economic and social justice to his people. elliott saw him as another standard issue communist dictator. angela davis was in the class of 1961. that class included robert deniro for untimely. they lived in the village and kathy levine who later became involved in the 1981 -- took part in the brinks robbery in which a guard and two police men were killed and served many years in prison for that. angela davis lived in birmingham, alabama at the height of jim crow and escape from the wretched segregated school system, she entered e. i. in edging a scholarship from the service committee. i will read a short passage about her. when she entered the school although angela braced herself for outright hostility she had not foreseen he

hurwitz: currently, city tunnel 1 and city tunnel number 2 would be feeding each half of the city. so you'd lose half the city if you didn't have a replacement. narrator: without half of its water supply, the city would shut down. for nearly 40 years, new york has been in the process of constructing a solution.

he debated with his classmates in the basement cafeteria his chief opponent was tom hurwitz.is equal and intellectual and their love of a good fight. the impromptu discussions often ended in shouting matches between the two. a hot topic in those lunchroom debates with cuba and fidel castro would come to power in 1959. most of the students are cast as a romantic revolutionary who would bring economic and social justice to its people. angela davis, the third antagonist. that class included robert de niro for a time. and kathy, later became involved in the 1981, she took part in the 1981 brings robert in which a guard and two policemen were killed, and certain years in prison for that. angela grew up in birmingham, alabama, at the height of jim crow, and to escape from the wretched segregated school system, she entered the i in her junior year on scholarship from the americans friends committee. and i will just read a short passage about her. when she ended the school, although angela graced itself, she had not foreseen for tennessee to be over solicitous of the few black acquai