Lead Service Line Inventory

ACWD Meets EPA’s Revised Lead and Copper Rule Requirements

Protecting the safety of our community and ensuring high-quality drinking water standards while meeting increasing regulations remains ACWD’s commitment to our customers. ACWD meets this commitment and the requirements of the U.S. Environmental Protection Agency (EPA’s) first major update to the Lead and Copper Rule (LCR) in nearly 30 years to better protect children and communities from the risks of lead exposure.

ACWD submitted the Water Service Line Inventory to the State of California Water Resource Control Board Division of Drinking Water (DDW) on October 16, 2024, in compliance with EPA’s Revised LCR.  

How ACWD Identified Water Service Line Materials

After an extensive review of historical records that included initial installation records, standard specifications, repair and replacement records, interviews with senior staff, and field investigations, staff determined that ACWD did not use lead connectors or leaded pipelines for water services in the past. The first Initial Lead Service Line Inventory, which included information only on the ACWD-owned portion of the service line, was submitted to DDW in 2018.  The inventory submitted in 2024 was updated to include information for the material types of the customer-owned portion of the service lines.

Use the Interactive Map to Look up Your Water Service Line Material

This easy-to-use ACWD Interactive Map allows customers to look up the material status of water service lines. Enter the service address and the information will be displayed in a pop-up window.

To learn more about how ACWD’s meets or surpasses all state and federal drinking water quality standards, and for more information about other LCR programs, visit acwd.org/WaterQuality.

What is a Water Service Line? 

The water service line is the pipe infrastructure that supplies water from ACWD’s water main to a home or business. This line begins at the main connection and connects to the building inlet. ACWD operates and maintains the pipe from the main up to and including the water meter. The customer's responsibility begins after the water meter and all the pipe downstream going toward the home or business. These water service lines can be made up of several materials such as galvanized steel, copper, polyethylene, polybutylene, or polyvinyl chloride (PVC).

In older homes and buildings, lead can leach from service lines, solder, and fixtures into tap water and become a significant source of lead exposure. The EPA requires all water utilities to inventory the water services, and identify and replace services that contain lead pipes, lead connections, or galvanized pipes that have at one time been downstream of a lead pipeline or connector.  

Health Effects of Lead Exposure

Exposure to lead in drinking water can cause serious health effects in all age groups. Infants and children can have decreases in IQ and attention span. Lead exposure can cause new learning and behavior problems or exacerbate existing learning and behavior problems. The children of women who are exposed to lead before or during pregnancy can have increased risk of these adverse health effects. Adults can have increased risks of heart disease, high blood pressure, kidney or nervous system problems.  

Please contact ACWD at (510) 668-6598 or visit acwd.org/WaterQuality for more information about other LCR programs.

Additional Resources

More information about the Lead  Service   Line Inventory can be  found by visiting the California Department of Public Health and/or the State Water Resources Control Board.

To learn more about sources of Lead in drinking water, please visit EPA’s website https://www.epa.gov/ground-water-and-drinking-water/sources-lead-drinking-water-text-only.