(b) Discontinuance for nonpayment of bills rendered for water service of residential services can only take place between Monday and Thursday between the hours of eight a.m. and six p.m., and Fridays before twelve noon.

(c) The term public holiday refers to those holidays enumerated in the general construction law. 3-c. It shall be unlawful for any water-works corporation to discontinue the supply of water to any person or entity receiving public assistance, for nonpayment of bills rendered for service, if the payment for such service is to be paid directly by the office of temporary and disability assistance or the social services official in such locality. 4. Nothing in this chapter shall be taken to prohibit a water-works corporation from establishing a sliding scale for a fixed period for the automatic adjustment of charges for water, or any service rendered or to be rendered and the dividends to be paid to stockholders of such corporation, provided the sliding scale shall first have been filed with and approved by the commission; but nothing in this subdivision shall operate to prevent the commission after the expiration of such fixed period from fixing proper, just and reasonable rates and charges to be made for service as authorized in this article. 5. Nothing in this chapter shall be taken to prohibit a water-works corporation from establishing classifications of service based upon the quantity of water used, times when used, purpose for which used, duration of use, or upon any other reasonable consideration, and providing schedules of just and reasonable graduated rates applicable thereto. No such classification, schedule, rate or charge shall be lawful unless it shall be filed with and approved by the commission, and every such classification, rate or charge shall be subject to change, alteration and modification by the commission. 6. No water works corporation shall sell or offer for sale any list of names of its customers. However, upon request by a municipality, a water works corporation shall provide water usage data by property address to such municipality where: (a) such municipality is within the service territory of such water works corporation; (b) such data shall only be used for municipal purposes related to the financing of clean, storm or drinking water infrastructure projects and service; and (c) the provision of such data shall be pursuant to a written agreement between the water works corporation and the municipality which adequately provides for customer privacy safeguards and is approved by the commission. The water works corporation may provide for reimbursement of any nominal administrative costs which result from this provision of data in the written agreement. Property water usage data shall be used solely for the calculation of assessments or bills for municipal services for which water usage is a relevant indicator of the cost of such municipal services and such data information shall not be sold or shared with any other person or corporation. If a private vendor is used by the municipality in association with such municipal purposes, the restrictions related to municipalities on sale or sharing of water usage data shall apply to such private vendor. Upon request by a municipality, the commission may commence a proceeding to: (a) establish a written agreement between the municipality and a water works corporation; or (b) review any written agreement entered into between the municipality and a water works corporation, and make any modifications to such agreement as would be in the public interest. Any agency, as defined under section eighty-six of the public officers law, shall not disclose any personally identifiable information contained within such water usage data to the public. For purposes of this subdivision, "municipality" shall only include the cities of New Rochelle and Rye; the towns of Eastchester, Greenburgh, and Mount Pleasant; and the villages of Ardsley, Bronxville, Dobbs Ferry, Hastings-on-Hudson, Pelham, Pelham Manor, Port Chester, Rye Brook, and Tuckahoe. 7. Every water-works corporation providing service to the residents of a county with a population of one million two hundred fifty thousand or more which is not wholly contained within a city shall meter service to its customers within two years of the effective date of this subdivision.