The City of Sonoma is gathering information about service line material while installing new water meters as part of the in-progress Advanced Metering Infrastructure (AMI) project.
A map showing up-to-date identification of all water services is located on the Lead Service Line Inventory webpage.
In addition to field inspections, data from existing records, utility maps, historical ordinances/construction requirements, statistical analysis, and other approved methods to determine the type of materials in the water service lines from the main line to the meter box and from the meter box to the building inlet are used to create a comprehensive inventory.