Jul 06, 2017

NSF Intl. Offers Drinking Water Resources for Schools

It is important for schools to meet EPA lead-free requirements

NSF Intl. materials help schools meet lead-free requirements

NSF Intl. shared its resources that help consumers and facility managers find drinking water treatment products, including plumbing supplies, that have been independently tested and certified to meet the requirements of the U.S. Safe Drinking Water Act (SDWA). Under SDWA, products that contact drinking water must contain less than a 0.25% weighted average lead content.

When assessing a school district’s plumbing systems and components, school facility managers and school administrators should be aware of the three main sources of lead contamination in plumbing systems:

  • Lead service lines connecting the building plumbing systems to the public water distribution system, typically in buildings constructed prior to 1950;
  • Lead solder used in copper piping systems installed prior to 1986; and
  • Lead-containing brass or galvanized pipe and fittings that are not certified to the NSF/ANSI 61: Drinking Water System Components – Health Effects standard, which includes many products manufactured prior to the mid-1990s.

NSF Intl. advises school facility managers and administrators to look for plumbing systems and parts that are certified to the SDWA requirements. Products certified to the NSF/ANSI drinking water standards (NSF/ANSI Standard 61: Drinking Water System Components – Health Effects and NSF/ANSI Standard 372: Drinking Water System Components – Lead Content) have been independently certified to meet federal lead regulations.

NSF/ANSI Standard 61: Drinking Water System Components – Health Effects establishes the minimum requirements for the control of potential adverse human health effects from products that come in contact with drinking water. NSF/ANSI Standard 372: Drinking Water System Components – Lead Content sets the methodology for product compliance with a maximum weighted average lead content requirement of 0.25% as set by SDWA in January 2014.

NSF Intl. has lists of NSF Certified lead-free products including faucets, drinking fountains and icemakers on its website.

The U.S. Environmental Protection Agency (EPA) defines “lead-free” under the SDWA Act as a weighted average of 0.25% lead calculated across the wetted surface of a pipe, pipe fitting, plumbing fitting and fixture and 0.2% lead for solder and flux.

The SDWA also prohibits “the use of any pipe, any pipe or plumbing fitting or fixture, any solder, or any flux, after June 1986, in the installation or repair of (i) any public water system; or (ii) any plumbing in a residential or non-residential facility providing water for human consumption, that is not lead free.”

The regulations also prohibit the sale of any pipe, plumbing fitting or fixture, solder or flux that is not lead-free, unless its use is for manufacturing or industrial purposes.

Schools can test their water for lead by first contacting the local regulatory authority to find out if the state or local jurisdiction has specific requirements. EPA outlined a method of testing for lead in drinking water for schools and daycare centers in the Lead Contamination Control Act (1988), which also banned lead-lined water coolers and provided guidance on sampling water from faucets and drinking fountains when testing for lead in schools and daycare centers.

To speak with an NSF Intl. water experts, contact Dave Purkiss, general manager, Plumbing Water Systems, at [email protected] or 734.827.6625.