Lead in Drinking Water: Identifying Galvanized Services Lines Requiring Replacement

We’ve co-authored a white paper with BlueConduit discussing best practices for identifying galvanized services lines that require replacement under the Lead and Copper Rule Revisions (LCRR).


The Lead and Copper Rule Revisions require water systems in the U.S. to inventory their service line materials and develop replacement plans to prevent lead contamination of drinking water.

Replacement requirements cover two categories of service lines: lead service lines and “galvanized requirement replacement”. The latter category refers to galvanized steel lines that are, or ever were, downstream of a lead service line. If a water system is unable to demonstrate that a galvanized line was never downstream of a lead service line, then it’s also categorized as galvanized requirement replacement.

To help water systems with the process of identifying galvanized service lines that require replacement, we’ve worked with water analytics company BlueConduit to develop a white paper that discusses best practices and methodologies.

Topics discussed in the paper include:

  • Federal and State agency guidance.
  • Historical records review.
  • Visual inspection of service line materials.
  • Water quality sampling.
  • Predictive modeling.
  • Creating digital records.
  • Leveraging existing funding options.

Download the white paper

Best Practices for Identifying Galvanized Service Lines Requiring Replacement

Explore best practices for identifying galvanized services lines that require replacement under the LCRR.

external Download the paper (6.3 MB)

About the authors

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For more than 30 years, Jacobs has been responsible for planning and implementing Lead and Copper Rule-related strategies which protect millions of people in the U.S. and Canada. Our work includes enhanced water quality monitoring strategies, sampling plan development, harvested pipe-scale analysis, lead service line inventories and replacement plans, corrosion control studies and the incorporation of equity and environmental justice considerations into compliance programs.

BlueConduit is an Ann Arbor-based water infrastructure analytics company specializing in predictive analytics for lead service line identification and replacement and utilizes intelligent data insights and predictive machine learning methods to support cities and their engineering partners to inventory and replace lead service lines.

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