New York Codes, Rules and Regulations › Title 10 - DEPARTMENT OF HEALTH › Chapter I - State Sanitary Code › Part 5 - Drinking Water Supplies › Subpart 5-1 - Public Water Systems › Control of Copper and Lead in Drinking Water › Section 5-1.42 - Monitoring requirements for lead and copper in tap water

Current through Register Vol. 46, No. 28, July 10, 2024
(a)
Sample requirements.
(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 collect the number of
					 lead and copper tap samples required in paragraph (3) of this subdivision. All
					 sites from which first draw samples are collected shall be selected from this
					 pool of targeted sampling sites. Sampling sites may not include faucets that
					 have point-of-use or point-of-entry treatment devices designed to remove
					 inorganic contaminants.
(ii) The
					 public water system shall review sources of information listed below in order
					 to identify a sufficient number of sampling sites. In addition, the system
					 shall seek to collect such information, where possible, in the course of its
					 normal operations (
e.g.
, checking service line material when
					 reading water meters or performing maintenance activities):
(a) all plumbing codes, permits, and records
					 in the files of the building department(s) which indicate the plumbing
					 materials that are installed within publicly and privately owned structures
					 connected to the distribution system;
(b) all inspections and records of the
					 distribution system that indicate the material composition of the service
					 connections that connect a structure to the distribution system; and
(c) all existing water quality information
					 which includes the results of all prior analyses of the system or individual
					 structures connected to the system indicating locations that may be
					 particularly susceptible to high lead or copper concentrations.
(iii) The pool of targeted
					 sampling sites for community water systems shall consist of:
(a) structures containing lead pipes, copper
					 pipes with lead solder installed after 1982; and/or served by a lead service
					 line. Sampling sites shall be selected from the following building types, in
					 this order, until each building type is exhausted before moving to the next
					 building type:
(1) residential single family
					 (Tier 1 sample sites);
(2)
					 multiple-family residence where at least 20 percent of the structures served by
					 the water system are multiple-family residences (Tier 1 sample
					 sites);
(3) any community water
					 system with insufficient Tier 1 sampling sites shall complete its sampling pool
					 with Tier 2 sampling sites, consisting of buildings, including multiple-family
					 residences that contain copper pipes with lead solder installed after 1982 or
					 lead pipes; and/or served by a lead service line: (Tier 2 sample
					 sites);
(b) where
					 insufficient sites are available meeting the criteria of clause
					 (
a
) of this subparagraph, the sampling pool shall be completed
					 using single family residences that contain copper pipes with lead solder
					 installed before 1983 (Tier 3 samples sites);
(c) where insufficient sampling sites are
					 available meeting the criteria of clauses (
a
) and
					 (
b
) of this subparagraph, the sampling pool shall be completed
					 using representative sites that contain plumbing materials commonly found
					 throughout the water system"TMs distribution system;
(d) any water system whose distribution
					 system contains lead service lines shall draw 50 percent of the samples it
					 collects during each monitoring period from sites that contain lead pipes, or
					 copper pipes with lead solder, and 50 percent of the samples from sites served
					 by a lead service line. A water system that cannot identify a sufficient number
					 of sampling sites served by a lead service line shall collect first-draw
					 samples from all of the sites identified as being served by such lines.
(iv) The pool of
					 targeted sampling sites for a nontransient noncommunity water system shall
					 consist of structures that:
(a) contain copper
					 pipes and leaded solder joints installed after 1982 or contain lead pipes;
					 and/or
(b) are served by a lead
					 service line.
(v) A
					 nontransient noncommunity water system with insufficient Tier 1 sampling sites
					 shall complete its sampling pool with sampling sites having copper pipes with
					 lead solder joints installed before 1983. If additional sites are needed to
					 complete the sampling pool, the nontransient noncommunity water system shall
					 use representative sites throughout the distribution system.