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Concrete Casting News from the Hill and Griffith Company

2017 NSF/ANSI Water Treatment and Component Standards

Posted by Hill and Griffith Company on Aug 26, 2018 11:02:29 AM

A new informative Annex H: Water quality criteria considerations for piping materials in contact with drinking water has been added.

Water is, of course, the liquid molecule that we need to sustain life. Any kind of contaminant in water can be detrimental not only to granting this basic need, but it can wickedly and unnecessarily introduce new health problems and even deter individuals from consuming it. Therefore, it is crucial that public water supplies remain clean while supporting a system by which most people in modern society live. (From the American National Standards institute site.)

Drinking Water System Components

NSF/ANSI 61-2017: Drinking Water System Components – Health Effects

This American National Standard sets health effects criteria for water system components, specifically the materials or products that come into contact with drinking water, drinking water treatment chemical, or both and can potentially impart chemical contaminants and impurities. System components covered include protective barrier materials (cements, paints, coatings), joining and sealing materials (gaskets, adhesives, lubricants), mechanical devices (water meters, valves), pipes, plumbing devices, and process media. Most governmental agencies in North America require compliance with NSF/ANSI 61 for water treatment and distribution products.

NSF/ANSI 61-2017 contains the following revisions: exposure and normalization criteria specific to concrete aggregate have been added, a new informative Annex H: Water quality criteria considerations for piping materials in contact with drinking water has been added, language regarding tank covers has been incorporated, allowable volumes of test assemblies have been updated, updated terminology on control samples has been included, lead content requirements have been updated, and updates have been made to several pass/fail values in Annex D on Drinking Water Criteria.

(Warning from  to manufacturers that don't comply with the standard when required. Their blog page.)


ENGINEERS, CONTRACTORS and OWNERS, BEWARE! There are manufacturers out there who continue to try to game the system, but their irresponsibility can easily become YOUR LOSS! Here is an excerpt from the EPA in a summary statement made about the SDWA Section 1417.

Since 1986, the Safe Drinking Water Act (“SDWA” or “the Act”) has prohibited the use of certain items that are not lead free and since 1996 the Act has made it unlawful for anyone to introduce into commerce items that are not lead free.

ANY MANUFACTURER WHO IS MISLEADING THEIR CUSTOMERS INTO BELIEVING THAT THEIR SYSTEM IS CERTIFIED TO THE STANDARD IS VIOLATING FEDERAL LAW AS OF JANUARY 4, 2014! There is no nice way to say this! Unfortunately, this irresponsible behavior has become commonplace within the industry as there have been many manufacturers who have put off certification believing the enforcement would be low.

I spoke with our third party lab regarding the testing of components and systems and this is what they said:

Manufacturers can request the testing and certification of either a component or system. If a client chooses to only certify a component, then only the component can be labeled and advertised as certified.

To clarify, standard NSF/ANSI 61 addresses several different types of potential contaminants, but not specifically lead content. Low lead requirements are defined separately in three different requirements:

• Federal lead law: “Reduction of Lead in Drinking Water Act” – Effective January 4, 2014
• California lead law: “The California health & Safety Code 116875”
• NSF/ANSI 372: Standard, not a law, providing test methods.
It is important to note that having compliance to NSF/ANSI 372 does not substitute certification to either the Federal or CA State lead laws.

If a manufacturer has a SYSTEM certification, this will be obvious to the user if they look at the certification document provided by the test laboratory. The QuantumFlo Certification is, without question, perfectly clear.

72-inch diameter Bar-Wrapped Concrete Cylinder Pipe.

Ameron supplied this 72-inch diameter Bar-Wrapped Concrete Cylinder Pipe. Bar-Wrapped Concrete Cylinder Pipe (CCP) consists of a steel cylinder lined with concrete or cement mortar, then helically wrapped with a mild steel bar and coated with dense cement mortar. CCP is designed and manufactured in accordance with the American Water Works Association (AWWA) Standard C303 and AWWA Manual M9, and is normally supplied in standard diameters of 18 to 72 inches for operating pressures up to 400 psi. Pipe has been manufactured in larger sizes and for higher pressures based on the concepts of this standard.

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