N.Y. Comp. Codes R. & Regs. tit. 10, § 5-6.15
(d) Bulk transport and transfer procedures shall, at a minimum, meet the following requirements:
(7) Water quality in the tank, after 20-30 gallons have been delivered into the tank, shall be checked as follows:
(g) Records shall, at a minimum:
All bulk water sources and facilities must be approved and maintained for sanitary quality at all times.