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State of California Open Data

Data Collection FAQ

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Published by:
California Department of Water Resources
Last updated:
December 18, 2025
File details:
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Description:

This FAQ explains what information is collected through the program, how it is used, and how it benefits your community.

API endpoint

Dataset Name

Use the query web API to retrieve data with a set of basic parameters. Copy the API endpoint you need to start.

Usage documentation