N.Y. Comp. Codes R. & Regs. tit. 20, § 528.3
(c) Water sold as ice or in any other form is taxable.
Example 1:
A person purchases three gallons of bottled spring water at a supermarket. The bottled spring water is taxable.
Example 2:
A person contracts with a firm to furnish 20,000 gallons of water to fill a swimming pool. The water is delivered by a tank truck and is taxable.
Cross-reference:
For exempt purchases of water and ice when purchased with food stamps see section 528.27 of this Part.
Tax Law, § 1115(a)(2)