Question: After the water purification plant at the Croton Watershed is built, how much more water will be added to the city's supply each day?
Sentence: The Croton Watershed north of the city is undergoing construction of a US$3.2 billion water purification plant to augment New York City's water supply by an estimated 290 million gallons daily, representing a greater than 20% addition to the city's current availability of water.
Answer in sentence: yes