I think you can legally make a left turn here. For example from Marin to Clayton. Or Clayton to D st.
https://bonnicilawgroup.com/can-you-turn-left-over-double-yellow-lines-in-california/#:~:text=When%20it%20comes%20to%20solid,movement%20(Vehicle%20Code%2022107).

I am suggesting the yellow double be extended from marin onto the corner at E, heading east. It is totally faded and this is where cars cross over the double yellow line.

Thank you for your request. We have reviewed the request and have begun working to resolve it.

Is this going to be repainted?

Yes it will. It's on our list to do. We've had other maintenance issues we've been tending to this week. But once the weather dries up, we'll get out there. Sorry for the delay.

We are writing to let you know the issue you reported has been resolved. Thank you for your patience. If you wish to follow up on this request, please submit a new request ticket and reference this request ID # for staff's reference.

Thank you!!