New National Standard Helps Protect Public Water
Published on by Water Network Research, Official research team of The Water Network in Government
New National Standard Helps Protect Public Water Supplies
Global public health organisation NSF International has published the first consensus-based American National Standard to evaluate the performance of municipal water filtration technologies in removing cryptosporidium from public drinking water supplies.
The new standard - NSF/ANSI 419: Public Drinking Water Equipment Performance - Filtration incorporates state and federal regulatory requirements, assisting state regulators in verifying compliance while reducing time and costs for manufacturers by streamlining the testing process.
Products from Dow Chemical Company, Hydranautics, Hyflux Limited, Inge GmbH and Qua Group LLC are the first to earn certification to NSF/ANSI 419. Several other water filtration technologies are currently undergoing the testing and certification process.
Municipal water treatment plants that use surface waters such as lakes, rivers and streams as a source of public drinking water are required to filter out microorganisms and bacteria such as Cryptosporidium unless exempted by the US Environmental Protection Agency (EPA).
To ensure cryptosporidium is effectively removed from public drinking water, the EPA created the Long Term 2 Enhanced Surface Water Treatment Rule (LT2), which applies to all public water systems that use surface or ground water that is under the direct influence of surface water.
The NSF/ANSI 419 standard incorporates the EPA LT2 Rule as well as other federal and state requirements such as certification to NSF/ANSI 61: Drinking Water System Components - Health Effects, which sets contaminant limits for components that come into contact with drinking water such as plumbing components and pipes. By incorporating all regulatory requirements into one standard, NSF International is able to streamline the testing and certification process for these technologies while simplifying the purchasing process for municipal water treatment facilities.
Source: Water-Technology
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