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Status: The water tool is functioning normally.

Water Boundary Tool

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California Environmental Health Tracking Program

850 Marina Bay Pkwy, P-3
Richmond, CA 94804

(510) 620-3038
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Last Edited: 2/18/2013

How This Works

For any given public water system, the process for entering a service area boundary follows these steps:


Step 1: Create a boundary file

  • The tool enables you to use a number of methods to create the boundary
    • Draw the boundary using the tool's editing functions
    • Upload a table of addresses to be geocoded and then converted into a boundary
    • Upload a table of coordinates for conversion into a boundary
    • Upload a zipped shapefile or a KML file
    • Import boundaries for multiple water systems from one shapefile
    • Define a boundary from individual properties (visually or by Assessor Parcel Number)
  • Because a boundary may change over time, you will be asked to indicate the time period for which the boundary is valid
  • In some cases, multiple boundary files may already exist for your water system, which you should edit or delete as needed to ensure accuracy
  • After the boundary file is created, you can edit the boundary immediately or at a later time
  • If no editing is necessary, mark boundary as completed (Step 3)

Step 2: Edit the boundary

  • Once a file is created, the boundary can be edited using one or more methods, as listed above
  • A boundary file may be edited by multiple users, as long as they are approved for that water system

Step 3: Mark boundary as completed

  • Once you are certain that the boundary is accurate and needs no further editing, mark the boundary file as "completed'
  • A completed boundary file indicates that the boundary is ready to be verified
  • Only water system staff can mark boundary files as completed

Step 4: Verify boundary

  • Completed boundaries are verified by their corresponding district engineers or local primacy agencies
  • Verification offers an additional level of quality assurance by regulators

Step 5: Repeat as needed to document past and future changes to your service area boundary

  • Create a new file to capture changes to your water system's boundary (indicate the time period for which the boundary is valid)
  • You can create a new boundary file by modifying an existing file

See Instructions and Tutorials for more detailed guidance on creating and editing a boundary.  Begin using the water tool now.