The Croton Watershed is located 40 miles North of New York. It contains a lot of water that is used by New Yorkers in their every day lives.
A watershed is defined as the region draining into a river, river system, or other body of water.
The Croton watershed is crucial to New York City's water system because it is one of the main watersheds that provide water for the city's homes and businesses.
If people didn't pollute our water systems with unnatural substances (e.g. plastic bottles, cans, and chips bags) it would help the flow of naturally clean water to our homes.
Resources"What is a Watershed" video