Contaminant Data Display and Download Tool or CD3 is an innovative visualization tool for accessing water quality data for the San Francisco Bay-Delta and northern montane regions. It is the primary tool for accessing and downloading the San Francisco Bay Regional Monitoring Program’s (RMP) long-term dataset and other project data stored in SFEI's Regional Data Center (RDC). Data stored in SFEI’s RDC are comparable with the state’s data management business rules and are regularly exchanged with the California Environmental Data Exchange Network.
CD3 was redesigned in 2014 to leverage SFEI’s other interactive mapping efforts. It debuts impressive functionality, including enhanced spatial querying and dynamic statistical summaries. Other key benefits of the tool include:
- aggregating data from different projects and sampling events for an analyte
- accessing all data collected across multiple years for a project
- spatial querying by county, Water Board, hydrologic region, or user-defined area of interest
- generating surface model maps for RMP data
- selecting among several chart types for data analysis (e.g., mean and error; box and whiskers, histogram)
- downloading data as a tabular or spatially displayed dataset
- customizing and downloading charts for use in reports and presentations.
The tool is updated regularly with new datasets and has the flexibility to display all public data stored in SFEI’s Regional Data Center database.
The Contaminant Data Display and Download Tool (CD3) is a multifaceted data distribution and visualization system, available to all site visitors at no cost.
All Aboard for Water Quality Sampling
Hundreds of bottles of Bay water. Thousands of chemicals. Five dawn-to-dusk days all over San Francisco Bay. Every two years, the Regional Monitoring Program embarks on a mission to sample water from the surface of the Bay for water quality measurements and pollutants. Explore our 2025 efforts.
Russian River Watershed Atlas helps track and coordinate post-fire activities
Fire recovery in the Russian River Watershed will benefit from a common online platform for compiling, visualizing, and interpreting many kinds of environmental data available from diverse federal, state, regional, and local sources.
Help us improve CD3 to better meet your visualization and reporting needs by completing a brief survey. We're interested to learn which features you use and to read your suggestions on any desired, new functionality.
Other enhancements in this release include:
2014 RMP Sediment and Bivalve Data Now Available on CD3!
In 2014, the Regional Monitoring Program for Water Quality in San Francisco Bay (RMP) collected sediment and bivalve samples from San Francisco Bay as part of its long-term monitoring program.
This release of CD3 features an advanced download tool for accessing all data for a project and the ability to dynamically generate Sum of PCBs. Detailed instructions for using the tool's different features are provided in a pop-up box for easy reference.
