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(a) Applicability. The owner, agent, or other person in control of a building which has one or more water tanks as part of its drinking water supply system shall comply with the provisions of this section.
(b) Qualification. No person or entity shall engage or hold themselves out as engaging in the business of cleaning, painting or coating of a water tank of any kind that is part of a building's drinking water supply system without holding a valid permit issued by the Commissioner, unless:
(1) that person is a licensed master plumber, as defined in 24 RCNY Health Code § 141.01, or
(2) that entity is a corporation or partnership in which one of the officers or partners has the qualifications required by subdivision (b)(1) above.
(c) Cleaning, Painting or Coating Requirements. Water tanks that are a part of a building's drinking water supply system shall be cleaned, painted and coated in accordance with the applicable provisions of the Administrative Code of the City of New York, the State Sanitary Code Part 5-1 and applicable industry standards and recommendations including, but not limited to, AWWA, NSF/ANSI, or other national standards developed by ANSI-accredited organizations. All products related to work performed shall be certified by ANSI-accredited organizations. No paint containing lead in any form or in any amount shall be used on the inside of a water tank. When a tank is cleaned, painted or coated, the water supply connections to and from the tank shall be disconnected or effectively plugged to prevent foreign matter from entering the distribution piping.
(d) Disinfection. All water, dirt, and foreign material accumulated during the cleaning and/or painting process shall be discharged from the tank. The tank shall then be disinfected in accordance with the applicable provisions of the Administrative Code of the City of New York and industry standards and recommendations including, but not limited to, AWWA, NSF/ANSI, or other national standards developed by ANSI-accredited organizations. All products related to work performed shall be certified by ANSI-accredited organizations. The drinking water supply tank shall be completely drained and flushed with potable water before refilling for use.
(e) Sampling. After painting or treating the interior of the tank, a water sample will be taken to ensure volatile organic compounds are not found at levels greater than that allowed by Subpart 5-1 of the State Sanitary Code. Sample results shall be reported by a State certified laboratory equipped to analyze drinking water, in accordance with the latest edition of the Standard Methods for the Examination of Water and Wastewater, published jointly by the APHA, the AWWA and the WEF.
(f) Record Keeping. A record of the date, address and work performed including a list of the cleaning, paints, coating and disinfection products used shall be maintained by the owner, agent or other person in control of a building for at least 5 (five) years from the date of the completed work and such records shall be made available to the Department upon request within 5 (five) business days.