Have you noticed an increased demand in lead and copper testing? One factor contributing to this demand may be continued changes to the U.S Environmental Protection Agency’s (EPA) Lead and Copper Rule (LCR).

The Lead and Copper Rule has undergone several revisions since it was first introduced in 1991. Most recently, the EPA finalized the Lead and Copper Rule Improvements (LCRI) in 2024. The final rule requires systems to identify and replace lead pipes within 10 years, conduct more rigorous drinking water testing, and act at a lower threshold to reduce lead exposure.

Lead in Drinking Water

Lead enters drinking water through plumbing materials, particularly aging lead pipes. Exposure to lead can harm the neurological, cardiovascular, immune, and developmental systems, with children and pregnant women being especially vulnerable. The EPA states that there is no safe level of lead exposure.

To help prevent lead exposure, the Environmental Protection Agency (EPA) established the Lead and Copper Rule (LCR) in 1991. The LCR requires public water systems to monitor lead and copper levels in drinking water and take action to reduce exposure when levels exceed established limits.

What’s Changed with the LCRI

In 2024, the EPA introduced the Lead and Copper Rule Improvements (LCRI), which further strengthened requirements by:

These updates place a stronger focus on earlier detection, increased testing, lead pipe replacement and public transparency.

LCRI’s Impact on Utilities & Laboratories

More Rigorous Drinking Water Testing

For utilities and environmental laboratories, more rigorous testing translates into additional samples that need to be collected, prepared, analysed, and reported. Laboratories supporting public water systems should be prepared for increased workloads as utilities work toward meeting the changed requirements.

Lead Pipe Identification and Replacement

A key requirement of the LCRI is for drinking water systems to identify and replace lead pipes within 10 years. Meeting this requirement will need coordination between water systems, communities, and supporting laboratories. As replacement programs move forward, efficient lab workflows will be essential to manage increased testing demand while maintaining reliable results.

Lower Threshold for Action

As the LCRI lowered the action threshold, this requires communities to respond sooner to reduce lead exposure in drinking water. This increases the importance of monitoring, reliable testing, and efficient sample processing so utilities have the data needed to make informed decisions.

Improved Public Communication

The LCRI strengthens public communication requirements around lead risks, service line materials, and replacement efforts. As water systems provide clearer, more timely updates to communities, reliable testing and accurate reporting become even more important. Laboratories support this transparency by providing the data utilities need to communicate results, track progress, and guide lead service line replacement decisions.

Preparing Laboratories for Increased Testing Demand

As utilities work to meet the requirements of the LCRI, laboratories may experience increased demand for lead and copper analysis. More rigorous testing, ongoing monitoring, and lead service line replacement programs can all contribute to higher sample volumes and greater pressure on laboratory workflows. Preparing for this demand means ensuring laboratories have efficient processes in place for sample preparation, analysis, quality control, and reporting. Reliable instrumentation and streamlined workflows can help laboratories manage increased sample volumes while continuing to provide accurate, consistent results.

MANTECH’s Metal Digestion Screening Solutions

Metal digestion screening is an analysis that measures both pH & turbidity. If the screening results indicate ≥1 NTU the sample will need to be digested.  MANTECH offers automated metal digestion screening solutions designed to help laboratories manage increased lead and copper testing demands efficiently. Systems enable analysis with 15ml of sample and continuous autosampler loading, allowing laboratories to keep workflows moving without being limited to a fixed sample capacity

The AM500 series autosamplers further automate the process by transferring samples to digestion tubes and/or racks for metal analysis, with logic-based decision making based on screening results. Configuration options and hardware add-ons are also available to support faster throughput and adapt the system to different laboratory needs.

Compare MANTECH Options: