• Contact Us|
  • Terms & Conditions|
  • Team Members
  • Products
    • Product Catalog
    • Ductile Iron Pipe
    • Request Product Information
    MJ Mechanical Joint

    View the different joints and sizes we offer for ductile iron pipe.

  • Learning Center
    • Specifications
    • Submittal Sheets
    • Installation Guides
    • Downloadable Tip Sheets
    • Iron Strong Blog
    • Training Opportunities
    • Archived Catalogs
    • Frequently Asked Questions
    • Videos
    • Pocket Engineer
    DIP Production

    We provide all the necessary product-related information to our customers.

  • Sales & Support
    • Sales Team
    • Distributors
    • Treatment Plant Sales
    • Customer Service
    • Sales Operations
    DIP MJ Joint

    Our sales team strives to exceed customer expectations every day.

  • Corporate Responsibility
    • Code of Conduct
    • Environment
    • Health & Safety
    • Community
    • Awards

    A clear vision from our leaders, places environment, health and safety at the core of our business.

  • About Us
    • Company History
    • Executive Team
    • Locations
    • Associations
    • Contact Us
    McWane Ductile Iron Pipe

    We are a proud and experienced manufacturer of ductile iron pipe products.

  • Communications
    • Publications
    • McWane News Articles
    • Press Releases
    • Media Contacts
    Ductile Iron Pipe

    We strive to keep our team members, customers, and vendors informed of all happenings at the company.

  • Careers
  • Home
  • Learning Center
  • Iron Strong Blog
  • Do You Have an Iron Deficiency? Considering Health Effects in Pipe Material Selection
Back to Blog

Do You Have an Iron Deficiency? Considering Health Effects in Pipe Material Selection

By Roy Mundy, P.E., ENV SP, Assoc. DBIA   08/13/2020  In Environmental & Safety Products

We in the United States are most fortunate, for the most part, to have access to safe, clean drinking water. Even when traveling, we are not hesitant to draw water from a hotel faucet to brush our teeth or even fill a glass to drink. This privilege is no accident.

 Throughout the years, drinking water standards have continually gotten more stringent as technology, with applied science, has allowed for the identification of more possible contaminants at microscopic levels that could not be obtained in the past. Consequently, drinking water professionals have followed suit, educating themselves, and implementing a more sophisticated methodology to maintain these standards for their customers' safety.

 However, even though much focus has been placed on treatment processes, many times, little focus is placed upon the drinking water system infrastructure that delivers the drinking water to the customer's residence, whether it be the water system transmission and distribution pipelines or the service line from the meter to the house.

Unfortunately, this came to light in Flint, Michigan, when it was found that a change in water treatment specifically affected existing lead service lines extending from the meter to the residence, creating higher than acceptable lead levels in the drinking water. Similarly, utilities have ceased to use asbestos cement pipe wherein a similar circumstance could occur if proper inhibitors are not utilized to prevent internal leaching of the product.

Therefore, should we consider the health effects of the pipeline materials delivering our drinking water? The answer is, of course, a resounding YES!

Enjoying a glass of clean, safe drinking water. Photo source: iStock

What We May Not Know – Now, Or in The Future

Pipelines that carry our safe drinking water traverse our communities underground in an environment that often is somewhat unknown or in surroundings that can change over time. Toxic substances in the ground, such as Volatile Organic Compounds (VOCs) or related chemicals can PERMEATE through the walls of certain plastic-based pipeline materials such as PVC (polyvinyl chloride), allowing these toxic chemicals to infiltrate the drinking water being transmitted.

This permeation CAN NOT OCCUR when utilizing Ductile iron pipe (DI pipe), now or in the future. This level of protection is a factor of safety that makes water professionals sleep better at night. For more on protecting water quality from permeation due to contaminated soils, see this Iron Strong Blog by my colleague, John Johnson.

Toxic substances in the ground, such as VOCs or related chemicals can PERMEATE through the walls of certain plastic-based pipeline materials such as PVC.

Another unknown factor concerning drinking water infrastructure health effects can emanate from natural disasters such as wildfires. Studies have shown that toxic fumes are released from plastic-based waterline materials during wildfires, which in many cases, inhibit firefighters from entering an area to subdue the fire. The longer-lasting effects on water quality occur when these pipelines that have been subjected to such intense heat are placed back in service.

Long-lasting effects on water quality occur when plastic pipelines are subjected to intense heat from fires and placed back in service.

Let’s Look at The Inside-In

Many drinking water facilities throughout the country, including water tanks, water treatment plant basins, channels, etc. have been and are continuing to be constructed with innocuous Portland cement. The use of Portland cement has proven to be a very safe material when coming into contact with drinking water. This same material provides the lining for DI pipe, preventing build-up of mineral deposits as well as internal corrosion to the pipe wall. For more on tuberculation, see this helpful Iron Strong Blog by my colleague, Terry Lynch.

This tried-and-true internal lining system has been proven for more than a century, with NO substantiated report of resultant contamination from it or its components. This cement lining system has continued to maintain the integrity of the pipeline and the water quality of the drinking water distributed through it, even when needed water treatment oxidants are present. Unfortunately, this is not the case concerning some other plastic-based pipeline materials.

Documented cases throughout the country have shown that water treatment oxidants such as Chlorine Dioxide have significantly affected HDPE's service life through a process known as Oxidative Degradation. Additionally, the Centers for Disease Control and Prevention (CDC) has identified phthalates as affecting the reproductive system of laboratory animals. Although human health effects of exposure are unknown at this time, phthalates are widely used in polyvinyl chloride plastics.

Also of note is information in the book TROUBLED WATER—What's Wrong with What We Drink, authored by Seth M. Seigel. In his book, Mr. Seigel states: "One of the plastic pipes commonly used is polyvinyl chloride or PVC. PVC is derived from the chemical vinyl chloride.

During the PVC manufacturing process, it is common for some of the vinyl chlorides to fail when converted into plastic. The unconverted vinyl chloride remains embedded in the PVC. When the PVC comes into contact with water flowing through the pipe, some embedded vinyl chloride leaches into the water. When ingested, vinyl chloride can affect the central nervous system with symptoms including dizziness, headache, fatigue, and even loss of consciousness.”

Ductile Iron Vs PVC Pipe Comparison

The Forgotten City

Although up to 85 percent of the investment in a water utility's infrastructure is contained in the underground piping system, we often disregard this Forgotten City when it comes to strategic material selection due to its being "out of sight, out of mind." Many important factors should be reviewed when considering a pipeline project:

  • Does the material I select provide hydraulic efficiency due to larger inside diameters?
  • What is the estimated service-life of the material?
  • What are the internal and external loading capabilities of the pipeline material?
  • How easy is it to construct?
  • Is there an extraneous cost when additional materials such as select bedding is required?
We often disregard water infrastructure when it comes to strategic material selection due to it being "out of sight, out of mind."

These factors and more clearly illustrate the superiority of using DI pipe. However, installing pipeline material that protects the integrity of the drinking water being transmitted with NO POTENTIAL OF NEGATIVELY AFFECTING THAT WATER QUALITY is priceless to the water utility professional.

Having been personally involved in catastrophic events during my career wherein the water quality of the drinking water of the system I managed could be effected, I fully appreciate the use of pipeline material such as Ductile iron pipe that has served the industry well over a century, leaving NO QUESTIONS to be asked regarding its effect on water quality.

Safety, Resiliency, Durability, and Sustainability make Ductile iron pipe the superior choice to protect drinking water integrity.

We’re Here to Assist

For more detail on how these factors affect your pipeline design and considerations, contact your local McWane Ductile's Representative. We also have team members who have managed small and large water utility systems, served in engineering consulting firms, and bring decades of experience in solving field issues involving pipeline construction and operation. From design to submittal, to installation, we strive to provide education and assistance to water professionals throughout the water and wastewater industry.

Check Out All Our Digital Offerings

  • More articles and videos from our Iron Strong Blog
  • The McWane Pocket Engineer
  • Engage with us on LinkedIn
  • Follow us on Facebook
  • Follow us on Twitter

Subscribe to the Iron Strong Blog

Sources:

  • Seigel, Seth M., TROUBLED WATER—What's Wrong with What We Drink. New York: Thomas Dunne Books, 2019
  • Toxicity of Building Materials, Pacheco-Torgal, Jalali, and Fucic
  • Permeation of Organic Chemicals Through Plastic Water‐Supply Pipes, F. Goodfellow BEng, MRes, EngD (Graduate), S. K. Ouki Dlng, MSc, Ph.D., V. Murray MSc, FFOM, FRCP, FRCPath
  • Ductile Iron Pipe Research Association - https://www.dipra.org/ductile-iron-pipe-resources/technical-publications/
  • American Water Works Association (AWWA), Buried No Longer: Confronting America’s Water Infrastructure Challenge, 2015
  • Design of Water Supply Pipe Networks, Swamee, and Sharma
  • A Framework to Evaluate the Life Cycle Costs and Environmental Impacts of Water Pipelines, Thomas, Mantha, and Carol C. Menassa, University of Michigan

Share on social media

  • Print this Article

Roy Mundy, P.E., ENV SP, Assoc. DBIA

Roy Mundy, P.E., ENV SP, Assoc. DBIA, currently serves as Senior Regional Engineer for McWane Ductile, assisting utilities and engineering firms with value engineering of pipeline projects, education in pipeline material selection, and providing assistance with specification development and updating. Roy has a BS in Civil Engineering from West Virginia Institute of Technology; MS in Engineering Management West Virginia University College of Graduate Studies; and is a Registered Professional Engineer in six states; ENVISION Sustainability Professional. Prior to McWane Ductile, Roy served as Lead Executive with the American Water System, retiring as President/CEO of Kentucky-American Water Co. Roy has served as Section Chair and is on several national committees of AWWA, Board of Directors and national committees of NAWC, Chair of ORSANCO, member of Kentucky Infrastructure Authority. He is currently serving on AWWA – Business Practices Standards Committee, the KY/TN Section Management Committee, and the Water/Wastewater and Legislative Committees of DBIA. Roy is a member of AWWA, NSPE, KSPE, ASCE, DBIA, and KYRWA.

"I joined McWane Ductile 5 years ago after spending most of my career in the water industry in the private water utility sector," said Mundy. "I enjoy the opportunity to work with engineering firms and utilities in assisting with value engineering projects and providing education on aspects of our products. I enjoy restoring classic cars, but foremost enjoy time with my family traveling and working around our small farm in Kentucky."

roy.mundy@mcwaneductile.com

https://www.linkedin.com/in/roy-mundy-7b42417/

  • Learning Center
  • Specifications
  • Submittal Sheets
  • Installation Guides
  • Downloadable Tip Sheets
  • Iron Strong Blog
  • Training Opportunities
  • Archived Catalogs
  • Frequently Asked Questions
  • Videos
  • Pocket Engineer
  • Blog
  • Categories
  • Environmental & Safety
  • Installation
  • Our Company
  • Products
  • Services
  • Technical

Careers

Apply or view job opportunities

Search Careers

McWane Pocket Engineer

McWane Pocket Engineer

The one tool you never want to be without

Learn More

Buy American

Your trusted provider of guaranteed American-made waterworks products.

Learn More

Recognized as a proud member

  • ISI Member
  • DIPRA Logo
  • American Water Works Association
  • Water and Sewer Distributors of American WASDA
  • National Association of Water Companies
  • Water Environment Federation WEF
  • Products|
  • Learning Center|
  • Sales & Support|
  • Corporate Responsibility|
  • About Us|
  • Communications|
  • Careers

McWane Corporate

  • About|
  • Our Businesses|
  • Responsibility|
  • Environment|
  • Safe Operations|
  • Communications|
  • Careers|
  • Multimedia Library
Learn about McWane’s Environmental Focus

© 2021 McWane Ductile. All rights reserved

Privacy Policy | California Privacy Notice | Terms & Conditions | California Transparency in Supply Chain Disclosure | Sitemap | Contact Us

  • Products
  • Product Catalog
  • Ductile Iron Pipe
  • Request Product Information
  • Learning Center
  • Specifications
  • Submittal Sheets
  • Installation Guides
  • Downloadable Tip Sheets
  • Iron Strong Blog
  • Training Opportunities
  • Archived Catalogs
  • Frequently Asked Questions
  • Videos
  • Pocket Engineer
  • Sales & Support
  • Sales Team
  • Distributors
  • Treatment Plant Sales
  • Customer Service
  • Sales Operations
  • Corporate Responsibility
  • Code of Conduct
  • Environment
    • Protecting the Environment
      • Our Environmental Legacy
      • Investments
      • Environmental Management System
      • ISO & State Certifications
      • Environmental Excellence
      • Pollution Prevention Challenge
    • Sustainability for Generations
      • Sustainable Products
      • Sustainable Operations
  • Health & Safety
    • Culture of Safety
    • EHS Policy
    • McWane EHS Program
    • Ergo Cup
    • ISN & Contractor Safety
    • EHS Awards
  • Community
    • McWane Commitment
    • Partnerships
    • Community Advisory Panel
    • Charitable Giving Guidelines
  • Awards
  • About Us
  • Company History
  • Executive Team
  • Locations
  • Associations
  • Publications
  • Contact Us
  • Communications
  • McWane News Articles
  • Press Releases
  • Media Contacts
  • Careers
  • Team Members