Dave,
The area all around the pier is legal.
To locate the boundries:
*If you carry a GPS the most accurate is the coordinates listed in the CDFG regulations.
*Ecological Preserve Boundry Map & Rules:
http://scilib.ucsd.edu/sio/ocean/uwpk/page3.html
*A map is posted at the launch.
*The boundry is marked by bouys, (although the bouys move alot).
Thanks for your report and Good Luck!
Ed