May 18, 2020
Filter manufacturers may need to revisit their lead reduction formulations to assure adequate performance and optimal efficiency.
5 ppb lead effluent is not only the new failure level in the updated 2019 version of NSF Standard 53, it is also becoming a more common regulatory ceiling.
The downward trend to lower limits is evident.
New York (proposed)
North Carolina (proposed)
Washington, D.C. (passed)
New Hampshire (proposed)