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Drinking Water - Laboratory Water Quality Results

Published by California State Water Resources Control Board | State of California | Metadata Last Checked: July 09, 2025 | Last Modified: 2019-10-29T16:08:32.544888
The Division of Drinking Water requires laboratories to submit water quality data directly. The data is received, and published twice monthly on the Division's water quality portal. The resource here now is just a data dictionary for the laboratory analysis data available from that portal, and in the near future we plan to add curated data resources that include laboratory water quality results.

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