Drinking Water Treatment Units Must Now Meet Stricter Requirements for NSF/ANSI Lead Reduction Certification
ANN ARBOR, Mich. — The joint committee governing the American National Standards for drinking water treatment units recently lowered the maximum allowable concentration of lead in treated drinking water to 5 parts per billion.
Standards 53 and 58 now require drinking water treatment units to reduce the lead in drinking water to 5 ppb or less — a 50% drop from the previous 10 ppb — and a threshold that matches Health Canada’s new maximum allowable concentration level of 5 ppb.