Dredging projects include sediment sampling information that allows the DMMO to determine the suitability of that material for disposal or reuse at one of the managed dredged material placement sites in and around San Francisco Bay.  The information collected for any project may include physical, chemical, and/or biological testing data.  Available testing data for all Bay Area dredging projects has been compiled in a database that is available to search here.  (The database currently includes testing data from approximately 2000 - 2010.)

NOTE: The DMMO database accepts data submitted by testing labs without change or filtering. Macros built into the DMMO Excel Templates check to ensure that the data are in an acceptable format for submission to the DMMO database, but they do not evaluate data quality or accuracy. This means that users are responsible for screening whether any data they view are appropriate for their intended uses.

You may view or download existing data either by building your own Custom Queries here or by using the Automated Data Queries provided below.  (The ability to select data spatially from a map will be coming in a future update.)

Testing laboratories with approved passwords may submit new testing data via the Meeting Area.  (Lab data are uploaded via standardized Excel Templates. The DMMO Excel Templates, an example data file, and a Template User Manual are available here.)

Data Last Updated: August 2022