Galvanized Requiring Replacement (GRR) Whitepaper

Jacobs co-authored a whitepaper with BlueConduit on best practices for identifying galvanized service lines requiring replacement. Galvanized iron or steel service lines are part of many communities’ drinking water distribution systems. Galvanized lines are to be included service line materials inventories, due October 16, 2024. According to the Lead and Copper Rule Revision (LCRR), water utilities must plan to replace any galvanized lines that are, were, or may have been downstream of a lead service line.

A few highlights from the Galvanized Requiring Replacement Whitepaper

GRRs have been a particular concern because galvanized steel lines are dipped in a protective zinc coating containing lead that can leach into drinking water when corroded after decades of water exposure (Clark, Masters & Edwards, 2015). They also can capture lead from upstream lead sources and release lead if water quality changes or pipes are disturbed.

In the absence of complete information, robust statistical modeling can be used to help fill in the gaps.

From Best Practices for Identifying Galvanized Service Lines Requiring Replacement (download)

Get the full whitepaper from the Jacobs website.


About Ian Robinson

Ian Robinson is the President and Chief Operating Officer of BlueConduit. He manages day-to-day operations and strategic decision-making. He co-authored a white paper on data science for LSL replacement with ASDWA and is the vice chair for AWWA’s Lead in Water Subcommittee. He graduated from the University of Michigan’s Ross School of Business and School of Natural Resources and Environment with an MBA/MS. He excels at human-centered design, stakeholder engagement, and business strategy. He has extensive experience working with community-based initiatives. He served as a Peace Corps Volunteer in Ecuador from 2009-2012.

A photo of Sheela Lal

About Sheela Lal

Sheela Lal is BlueConduit’s Delivery Projects Manager. Sheela comes to BlueConduit from a long and varied career working to empower community development. She worked in the Missouri political ecosystem for 4 years, built DEI strategy for the US branch of the world’s largest IT services company, conducted research in Sri Lanka on a Fulbright Fellowship, and developed an external relations strategy for a Kolkata-based social enterprise. Sheela holds a BS in Statistics and BA in International Studies from the University of Missouri and an MBA from the University of Michigan.