DISCONTINUED - California Water Rights Measurement Devices (Reported in Annual Report)
Published by California State Water Resources Control Board
About this dataset
This dataset hasn't been updated since July 2025, and it no longer matches the State Water Board's current water rights records. This dataset will be removed in the near future to reduce confusion. We're replacing these older files with new datasets from CalWATRS, our current water rights system. We'll publish them one at a time as each one is built and checked for quality, so not every topic is available yet. The new datasets are organized differently, so you won't find a one-to-one replacement for this file. To see what's available so far, search data.ca.gov for "CalWATRS". This list includes detail information about the measurement devices and measurement methods associated with the diversion and storage of water as reported annually for water rights as stored in the State Water Resources Control Board's "Electronic Water Rights Information Management System" (EWRIMS) database. All water right holders are required to submit an annual report including information related to the measurement devices and measurement methods associated with the diversion or storage of water. Each row correspond with a unique annual report-water right id-and measurement device ID combination and its associated data. This file is in flat file format and may not include all information associated to a water right such all uses and seasons or the amounts reported used for every month. Other information may be available in the associated flat files for each category. Examples of annual reports templates are provided as supporting information.