San Jose Water Service Line Inventory Program

What is a Service Line Inventory?

In accordance with new guidance and regulation revisions from the Environmental Protection Agency (EPA), water utilities across the country are working to prepare and maintain an inventory of service line materials. This publicly available inventory must be complete by October 2024 and will provide water systems with essential information to comply with updated EPA regulations regarding lead and copper materials in water systems.

What is a Service Line?

A service line is the pipe that runs underground from the water main in the street directly to your home. San Jose Water owns and maintains all water main and related infrastructure up to about your property line. From there, the homeowner owns and is responsible for the pipes between the home and the property line, and inside the home. Learn more here.

Coming soon! Address lookup

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Coming soon! Report Service Line Material

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What are the sources of lead?

While water can be one source of lead, it can also be found in dust, paint, and soil in and around homes. For more information on all sources of lead visit: 

Lead can enter drinking water when plumbing materials that contain lead corrode, especially where the water has high acidity or low mineral content that corrodes pipes and fixtures. San Jose Water has a high mineral content in the water which helps to protect the water from interacting with any potential lead sources. While San Jose Water does not have any lead service lines in the distribution system, there are some homes that potentially have a lead gooseneck (see graphic below).

What does this mean for customers?

  • We'll be gathering information from a variety of sources including public records, our own records and your feedback, to create the service line inventory. As the inventory is compiled, it will be available on this website. 
  • If we don't already have information regarding the materials used in the service line at your property, we might reach out to you with a few questions to help us determine more about your service line.
  • From now through October 2024, we'll update this site regularly with information about our service line inventory process and additional information from the EPA.