A Special Town Meeting is being held in Bethel tonight about the proposed 500,000 gallon Chestnut Ridge water tank.  It would be partially buried in a lot in the woods between Long Meadow Lane and Briar Cliff Manor.  The project is eligible for a grant and low-interest financing from the state.  The rest would be paid for from customers’ water rates.  Bethel officials say the $2.24 million project is needed to further reduce the need for reservoir water and to increase pressure to the eastern side of town.  Officials added that well water is cleaner than the reservoir.  The Special Town Meeting is at 6:30pm in Meeting Room A of the municipal center.  Residents are asked to send the project to a referendum on March 10th.