This from Sheldon Coad on the Cal Sailing Forum:

If you come across something floating in the Bay, these are the folks who actually pick the stuff up on a routine basis. Handy to have the number in your cell phone and be sure to give them the coordinates if you can.

FYI – I Contacted
The person who answered the phone was interested and helpful and said they would check it out. A good number to have on your phone.

YOU CAN HELP
The hazard removal program is concerned primarily with commercial navigation, but pleasure boaters share the benefits of a hazard-free bay.
Report floating hazards when you see them, by calling us with the following information:
Your Name
Phone Number
Exact Location and Type of Debris Hazard
Time-of-Day When the Hazard Was Sighted
Direction of Movement of the Hazard
Operations
(415) 289-3000
Debris Removal Vessels
(415) 699-1482 M/V Raccoon
(415) 553-0794 M/V Dillard

http://www.spn.usace.army.mil/Missio...emoval-SF-Bay/