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Amount of water produced by month and by source and the water delivered by type of use and by month for every Public Water System (PWS) reporting. Public Water Systems submit their annual...
Search relevance: 89.15 | Views last month: 0 | Catalog Last Checked: July 28, 2025 at 09:01 PM -
Public Water Systems (PWS) submit their annual reports with rate information using the Electronic Annual Report (EAR) submission process on the Drinking Water Information Clearinghouse (DRINC)...
Search relevance: 87.15 | Views last month: 2 | Catalog Last Checked: July 29, 2025 at 02:33 AM -
The is a curated dataset of information for all public water systems (PWS) in California, including the name, location and some general informaiton for each PWS. The source of the data...
Search relevance: 85.33 | Views last month: 25 | Catalog Last Checked: July 28, 2025 at 09:52 PM -
Water Budget Calculator tools to discern the maximum applied water allowance.
Search relevance: 85.26 | Views last month: 0 | Catalog Last Checked: July 29, 2025 at 01:50 AM -
**NOTE: This dataset is no longer being updated. For current water supply and conservation data, please use this dataset: [Urban Retail Water Supplier - Water Conservation, Supply, and Demand...
Search relevance: 85.21 | Views last month: 4 | Catalog Last Checked: December 28, 2025 at 07:19 PM -
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...
Search relevance: 84.14 | Views last month: 3 | Catalog Last Checked: July 29, 2025 at 02:33 AM -
The Division of Drinking Water (DDW), in collaboration with the California Department of Education, has taken the initiative to begin testing for lead in drinking water at all public K-12 schools....
Search relevance: 83.49 | Views last month: 0 | Catalog Last Checked: July 28, 2025 at 09:15 PM -
This is the landing page for navigating to all of the water shortage vulnerability datasets provided by California Department of Water Resources. Please click on a dataset to be taken to the...
Search relevance: 83.09 | Views last month: 4 | Catalog Last Checked: March 28, 2026 at 07:38 PM -
September 2025 Note: This original 2019 data is superseded by a more recent data which captures newer submissions and resubmissions of older data reports. Link to new CNRA dataset that may change...
Search relevance: 82.74 | Views last month: 0 | Catalog Last Checked: November 28, 2025 at 07:18 PM -
The SSWP Water Quality and Temperature Study is one of many relicensing documents for the South SWP (SSWP) Hydropower Project Number 2426. The California Department of Water Resources and the Los...
Search relevance: 81.65 | Views last month: 0 | Catalog Last Checked: July 29, 2025 at 02:08 AM -
The DCP Water Quality and Temperature Study is one of many relicensing documents for the Devil Canyon Project (DCP) Hydropower Project Number 14797. The California Department of Water Resources...
Search relevance: 81.46 | Views last month: 0 | Catalog Last Checked: July 29, 2025 at 02:11 AM -
These documents present the 2023 and 2024 updates to the Water Shortage Vulnerability scoring for both (and separately) rural communities as domestic wells and state small water systems and...
Search relevance: 80.40 | Views last month: 0 | Catalog Last Checked: July 28, 2025 at 08:39 PM -
Surface water toxicity data from the [California Environmental Data Exchange Network](https://ceden.waterboards.ca.gov) (CEDEN). CEDEN is the California State Water Board's data system for surface...
Search relevance: 80.35 | Views last month: 6 | Catalog Last Checked: June 26, 2026 at 08:25 PM -
This page is meant to act as an archival repository for previous Water Shortage Vulnerability analyses, which includes the Water Shortage Vulnerability Sections, Water Shortage Vulnerability for...
Search relevance: 80.28 | Views last month: 2 | Catalog Last Checked: June 26, 2026 at 08:25 PM -
This data provides results from the [California Environmental Data Exchange Network](https://ceden.waterboards.ca.gov) (CEDEN) for field and lab chemistry analyses. The data set contains two...
Search relevance: 80.23 | Views last month: 18 | Catalog Last Checked: June 26, 2026 at 08:25 PM -
URL: https://data.cnra.ca.gov/dataset/8f7c9792-652a-4f5e-95ad-707961dfc3f5/resource/da64051a-7751-48e1-ab59-39c73a3ea52d/download/cdec-water-year-type-nov-2023.xlsx Chronological Reconstructed...
Search relevance: 80.20 | Views last month: 0 | Catalog Last Checked: July 28, 2025 at 06:19 PM -
The California State Water Project (SWP) is one of the nation’s largest water conveyance projects. Its geographic extent stretches from Sierra Nevada lakes north of Lake Tahoe, down the Central...
Search relevance: 79.97 | Views last month: 29 | Catalog Last Checked: May 27, 2026 at 07:53 PM -
Excel Application Tool for Agricultural Water Use Data 2011 - 2015 Department of water resources, Water Use Efficiency Branch, Water Use Unit program, has developed an Excel application tool,...
Search relevance: 79.49 | Views last month: 1 | Catalog Last Checked: July 28, 2025 at 09:54 PM -
This data set lists active and historical enforcement actions records that are stored in the [California Integrated Water Quality System](https://www.waterboards.ca.gov/ciwqs) (CIWQS). Enforcement...
Search relevance: 78.68 | Views last month: 2 | Catalog Last Checked: May 27, 2026 at 07:53 PM -
This data package aims to pilot an approach for providing usable data for analyses related to drought planning and management for urban water suppliers--ultimately contributing to improvements in...
Search relevance: 78.29 | Views last month: 0 | Catalog Last Checked: November 28, 2025 at 07:19 PM
