Part 5 Drinking Water Supplies

The provisions of sections 5-1.10 through 5-1.15 of this Subpart shall apply, throughout the State of New York, to all existing and proposed sources of water supply.

(a) Whenever the supplier of water determines or is advised by the State that one or more of the MCLs set forth in this Subpart are or may be exceeded; or that effectiveness of treatment processes diminishes to the extent that a violation of the treatment techniques or MCLs set f…

The supplier of water shall collect raw water samples at a frequency prescribed by the State and analyze such samples for contaminants using an approved method, with method exceptions as listed in the tables in section 5-1.52 of this Subpart, and by an approved laboratory as desc…

Before the approval of a source of water supply for public water system purposes, a report shall be submitted to the State. Such report shall include, but may not be limited to, all of the following: (a) a summary of available raw water quality data for at least 10 years before t…

If the information required is already available for the same source of water supply or if an emergency exists which requires the development of an emergency source, the requirements of section 5-1.14 of this Subpart shall not apply.

The provisions of sections 5-1.20 through 5-1.33 of this Subpart shall apply to all public water systems, provided the systems serve 15 or more service connections or serve 25 or more persons.

Before a person shall enter a financial commitment for or initiate construction of a public water system, such person shall notify the State and, to the extent practicable, avoid locating part or all of the public water system at a site which: (a) is subject to a significant risk…

(a) No supplier of water shall make, install or construct, or allow to be made, installed or constructed, a public water system or any addition or deletion to or modification of a public water system until the plans and specifications have been submitted to and approved by the St…

(a) The supplier of water shall not take, use, or cause to be taken for use water from any emergency source or stop or alter disinfection or other treatment processes without first having notified by telephone or telegram, and received the approval of, the State. On receipt of su…

Fluorine compounds shall not be added to a public water system until a written application has been submitted to, and written approval is granted by, the State.

(a) No spring basin, collecting basin, well, infiltration gallery, water main, pumping station, standpipe or reservoir shall be placed in service following cleaning or repairs until it has been disinfected in a manner approved by the State. (b) For each operational period, before…

No repair to the public water system shall be made until the trench has been dewatered to a point below the mains, valves or other structures. Every effort shall be made to prevent the entrance of foreign material and seepage into the public water system.

The public water system shall be maintained and operated by the supplier of water to assure a minimum working pressure of 20 pounds per square inch at ground level at all points in the distribution system. Measurement of pressure may be obtained from representative points of use.

All blowoff drains or discharge pipes connected to the public water system should be terminated at points where these structures will not be subject to flooding or otherwise subject to contamination.

Pumping equipment of a public water system, for water which is not subject to later treatment, shall be installed and operated to prevent contamination of the public water system. Whenever priming is necessary, such pump shall be primed with water meeting the requirements of sect…

The supplier of water shall provide such treatment as necessary to deliver to the consumer a water conforming to the requirements of this section and determined using an approved method, with method modifications as listed in the tables in section 5-1.52 of this Subpart, and by a…

(a) The supplier of water shall implement a service protection program (also known as containment) which includes the following: (1) requiring a protective device commensurate with the degree of hazard posed by any service connection; (2) requiring the user of such connections to…

Finished water storage facilities which deliver water to the user without later treatment shall be covered, or the water from an uncovered finished water storage facility shall be continuously treated to achieve inactivation or removal of at least 99.99 percent virus, 99.9 percen…

(a) All community water systems that supply drinking water to more than 3,300 people shall submit a water supply emergency plan to the State. The plan shall identify and outline the steps necessary to ensure that potable water is available during all phases of a water supply emer…

The requirements of sections 5-1.40 through 5-1.48 of this Subpart shall apply to all community water systems and nontransient, noncommunity water systems serving 15 or more service connections or serving 25 or more persons. (1) AnalyteAction Level1,2 Lead0.015 mg/L Copper1.3 mg/…

(a) Each system shall complete the applicable corrosion control treatment requirements found in subdivision (c) of this section unless it is deemed to have optimized corrosion control as provided under subdivision (b) of this section. A system is deemed to have optimized corrosio…

(1) Sample site location. (i) Each water system shall complete a materials evaluation of its distribution system in order to identify a pool of targeted sampling sites that meets the requirements of this section, and which is sufficiently large to ensure that the water system can…

All systems serving over 50,000 persons and systems that exceed the lead or copper action level shall monitor water quality parameters in addition to lead and copper in tap water in accordance with this section. (1) Sample collection method. (i) Distribution system (tap) samples …

A water system that exceeds the lead or copper action level based on first draw tap water samples collected in accordance with section 5-1.42 of this Subpart shall collect lead and copper source water samples in accordance with the following requirements: (1) Water systems shall …

A water system that exceeds the lead or copper action level based on first draw tap water samples collected in accordance with section 5-1.42 of this Subpart shall complete the applicable source water monitoring and treatment requirements and operate appropriate treatment to main…

(a) Water systems that fail to meet the lead action level in tap samples collected after installing corrosion control treatment and/or source water treatment (whichever occurs later) shall replace lead service lines in accordance with the requirements of this section. Water syste…

All water systems shall provide notice of the individual tap results from lead tap water monitoring carried out under the requirements of section 5-1.42 of this Subpart to the persons served by the water system at the specific sampling site from which the sample was taken (i.e., …

(1) Unless the State has specified a more frequent reporting requirement, a water system shall report the following information for all tap water samples specified in section 5-1.42 of this Subpart and for all water quality parameter samples specified in section 5-1.43 of this Su…

The provisions of this section and sections 5-1.51—5-1.52 of this Subpart shall apply to all public water systems. The supplier of water of a public water system is responsible for completion of the monitoring requirements set forth in such sections and for performing all analyse…

(a) The maximum contaminant levels, maximum residual disinfectant levels and treatment technique requirements are listed in section 5-1.52 tables 1 through 7 of this Subpart. In the case where an MCL, MRDL or treatment technique requirement is exceeded, notwithstanding anything t…

GT - Greater Than LT - Less Than 1 If a system is not vulnerable to asbestos contamination, either at its source or due to corrosion of asbestos cement pipe, it is not required to monitor if granted a waiver by the State. The waiver must be renewed by the State every nine years. …

Surface water systems or systems using ground water under the direct influence of surface water that are community or nontransient noncommunity water systems, serve 15 or more service connections or serve 25 or more persons, and use conventional filtration treatment shall operate…

Monitoring for Disinfection byproduct precursors shall be in accordance with the following table.

Systems may use one of the following alternative compliance criteria instead of enhanced coagulation. Systems using the alternative compliance criteria shall still comply with the monitoring requirements stated in section 5-1.61 of this Subpart.

Systems must achieve the percent reduction of TOC specified in subdivision (a) of this section (Step 1) between the source water and the combined filter effluent, unless the State approves a system's request for alternate minimum TOC removal (Step 2) requirements, which are provi…

(a) If a system exceeds the operational evaluation level at any monitoring location when the sum of the two previous quarters’ TTHM results plus twice the current quarter’s TTHM result, divided by 4 to determine the average, exceeds 0.080 mg/L, or when the sum of the two previous…

The following is a table of the best available technology, treatment techniques, or other means available for achieving compliance with the maximum contaminant levels for Bromate, Chlorite, TTHM and HAA5, for public water systems that disinfect their source water.

Sections 5-1.70 through 5-1.79 of this Subpart shall be applicable to all public water systems, provided the systems serve 15 or more service connections or serve 25 or more persons. Sections 5-1.71(c) and (d), 5-1.72(c), and 5-1.78(a)(4) of this Part apply to all public water sy…

(a) The supplier of water and the person or persons operating a public water system shall exercise due care and diligence in the maintenance and supervision of all sources of the public water systems to prevent, so far as possible, their pollution and depletion. (b) The supplier …

(a) The supplier of water and the person or persons in charge of the operation of a public water system shall operate and maintain the public water system in such a manner to meet the requirements of this Subpart. (b) The person or persons in charge of operation of a public water…

Every supplier of water shall provide, or have available environmental laboratory facilities approved by the New York State Environmental Laboratory Approval Program (ELAP). Tests for the control of the operation of such public water system shall be made daily or more frequently …