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Delta Watermaster group walks users through Cal Waters rollout, flags SB 88 timelines for 2027
Summary
Office of the Delta Watermaster and partners demoed Cal Waters, the Division of Water Rights’ new reporting platform, and reviewed revisions to SB 88 measurement regulations that shift key implementation dates to water year 2027 and clarify large‑diverter requirements.
The Office of the Delta Watermaster and members of the Delta Measurement Experimental Consortium on Tuesday demonstrated Cal Waters — the Division of Water Rights’ new water‑rights and reporting database — and outlined revised SB 88 measurement regulations that will take effect for water year 2027.
Cal Waters demonstration and migration context: Why it matters
Alex Burke of the Delta Watermaster office showed participants the Cal Waters test environment, navigating to the “My annual reports” page, explaining how OpenET‑derived monthly and annual evapotranspiration (ET) totals display, and how reporters may accept OpenET values or submit measured data. “This is the Cal Waters home page. This is what you see when you first sign in,” Burke said during the demo, adding that the test environment will not submit official data.
The Offi…
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