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Purolite's Purofine® PFA694E Resin Reduces PFNA to Non-Detect levels helping New Jersey municipalities meet regulations

New Jersey legislators in Trenton make history as the first to establish a firm regulatory maximum contaminant level (MCL) for PFAS in drinking water. At the session on Tuesday September 4, 2018, the Safe Drinking Water Rules N.J.A.C. 7:10 were amended to allow regulation of perfluorononanoic acid (PFNA) at a MCL of 13 ppt (0.013 µg/L). PFNA is believed to cause damage to kidney, liver, immune and reproductive systems, as well as delays in fetal and infant development.

Considered emerging contaminants, this is a game-changer for municipal water authorities who previously were not required to test for any PFAS compounds.

As state guidelines change, and new regulatory levels are introduced for the various compounds, water treatment professionals will need to put systems in place for managing contamination levels.

Joe Klimek, Purolite's Northeast Regional Sales Manager notes, "As a New Jersey resident, I appreciate that state lawmakers are looking out for the health and safety of residents—and fully expect that other states and even federal authorities will soon follow course." 

Francis Boodoo, Purolite's Director of Applied Technologies adds, "We have been working with various private, state and federal authorities for years regarding PFAS contamination. PFAS is being found in more water systems across the globe. Consumers are showing increasing awareness and interest in its potential impact on their health. A few years ago, we saw this problem getting bigger and bigger. Since then, we developed and field tested treatment solutions that are well suited to meet and exceed the new MCL."

If levels are detected in water, there are treatment options available, including ion exchange resin and granular activated carbon. Resin, however, offers some important advantages over carbon for treating short-and long-chain PFAS compounds—including PFNA. Some advantages include longer typical run times of around two years (time water will stay within compliance levels), fewer resin change-outs, potential to reduce analytical costs, and simple system design with a smaller footprint.

Purolite's Purofine® PFA694E PFAS-selective ion exchange resin removes PFNA from contaminated water to well below New Jersey's legislated MCL, taking levels of the contaminant to non-detect—while keeping levels in compliance for much longer than treatment with granular activated carbon. If there are other PFAS compounds in the water, those will also be removed with the same treatment.

According to a state representative attending a mid-August meeting between Purolite and the N.J. Department of Environmental Protection, it is advisable for municipal water authorities to target levels well below the MCL to ensure compliance, recommending a practical control target of half the MCL, or 6.5 ppt (0.0065 µg/L).

Under the ruling, all community water systems using a groundwater source or sources serving a population of 10,000 people or less and public non-transient, non-community water systems will begin monitoring within the first quarter of 2019. Community water systems using a surface water as a source and all public community water systems serving a population over 10,000 will begin monitoring within the first quarter of 2020. Quarterly monitoring will go into effect if PFNA is detected at a level exceeding 2 ppt (0.002 µg/L), otherwise the monitoring will be performed once every three years according to the federal schedule on water system type.

Purolite's Purofine® PFA694E resin is fully compliant with 21 CFR § 173.25 and NSF ANSI 61.

For more information on PFNA and other PFAS compounds in drinking water, contact your local Purolite technical sales representative.