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)
(Click on this link to download an Excel workbook from WQA for more details).