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Commentary

Flint and our water infrastructure challenges

Flint and our water infrastructure challenges

Ductile Iron Pipe Research Association president Jon Runge explains how to mitigate hazards in water piping.
  • Written by American City & County Administrator
  • 7th June 2016

By Jon Runge

The word, “Flint” is nearly synonymous with water issues. The Michigan community’s name is tied to fears about “what’s in the water,” as lead in Flint’s water jeopardized the health of residents.

In America, we trust that our water is safe. We trust that those who manage water utilities know what they’re doing. We trust that our officials protect our well-being. But Flint’s predicament came as a surprise. And then the collective wonder, “What’s in my water?”

From the experience of Flint, however, there is a healthy national conversation. The good news is that there are calls at federal, state and local levels to remove lead pipes, and update aging infrastructure. The bad news is that there are special interests promoting product regardless of hazard, including lead components.

With critical infrastructure decisions on the cusp, we need to select pipe materials based on known attributes and composition. What’s not generally known, however, is that the pipes with lead composition are not just lead pipes themselves – but also polyvinyl chloride (PVC) pipes made in the U.S. before the 1970s, and afterwards in China and India.  

Lessons from Flint 

The experience of Flint has galvanized citizens and officials nationwide to join in the conversation about what to do to safeguard our drinking water – from lead and other contaminants. Among the lessons we’ve learned are that people can make bad decisions for what they thought were good reasons (cut costs). We’ve also learned not to gamble on known hazards – remove lead pipes from water infrastructure and as a component in any pipeline material. Similarly, do not select pipes made with other known toxic components, like PVC. 

Where’s the Lead in Pipelines? 

To shed light on what makes up various pipeline materials, let’s take a look at the components.

  • Concrete: Cement, Aggregate, Steel Reinforcement.

  • Asbestos Cement: Cement, Aggregate, Asbestos, Steel Reinforcement.

  • Ductile Iron Pipe: Iron, Carbon, Silicon, Magnesium, Copper, Chromium.

  • Steel: Low Carbon, Iron.

  • Galvanized Steel: Steel, Zinc. 

  • Polyethylene Copper: Lead solder in joints.

  • Polybutylene

  • Lead

  • Polyvinyl chloride (PVC): Vinyl Chloride Monomer, stablizers including cadmium and organotins. 90% of PVC pipe manufactured in China and India uses lead as of 2013, while U.S.-made PVC pipe used lead until the late 1970s.

PVC: Source of lead and other contaminants

What was not known about lead in the past has given us the hazards that created crises, such as in Flint. Similarly, what is known today about pipe materials such as PVC, could be the health disaster equivalent tomorrow. Concerns about PVC include:

  • PVC pipe is made from vinyl chloride monomer (VCM), a category “A” carcinogen that also has reproductive and developmental toxicity.

  • Domestic PVC industry uses organotins, compounds that pose health risks such as cancer, reproductive and immune systems risks and neurotoxic effects.

  • Hydrocarbons and other contaminants in soils can permeate through PVC pipe into drinking water.

So what pipe is safe? Iron pipe has been used in cities across the America, beginning with cast iron pipe and then modern ductile iron pipe. Over time, innovations have led to improvements such as cement-mortar linings, polyethylene encasement and V-Bio polyethylene encasement.  And ductile iron pipe is lead-free, toxin-free and made up of more than 90% recycled content.

But there are those who prey on the fears from Flint, seeking to equate all metallic pipe with lead. Their facts are wrong, and mislead our decision-makers. 

Join the conversation

So we ask you to join us in spreading the good news to replace aging infrastructure, with a pipeline material that has been proven to be safe and sustainable. Talk to your elected officials and utility managers, to warn of potential hazards with pipes made with any component of lead or other toxins. Let your neighbors know to ask what’s in their water, and to demand that hazardous components are outlawed.

We are, in short, asking that you join in this national conversation, too. 

Jon R. Runge, CAE is the president of the Ductile Iron Pipe Research Association. He has more than 25 years of experience in association management, marketing, and sales for numerous corporations and nonprofit organizations. He has held senior-level marketing positions at MillerCoors and American Water Works Association.  He can be contacted at [email protected].

 

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