Code Enforcement Division assigned this issue to Christina E., Community Services Section (CSS)

Thank you for reporting! The Police Department's Community Service Section (CSS) has opened a case for this issue. CSS has one part-time and three full-time employees who are responsible for addressing all quality of life concerns, supporting Neighborhood Watch groups, and working with the Neighborhood Law Program and Code Enforcement to address distressed and dangerous properties. We work hard to investigate each report in a timely manner, and will investigate this report as soon as we possibly can. Please keep in mind there is a lengthy process to remove illegal encampments. If you have any questions, please call our office at (707) 553-7218.

If you witness any suspicious or criminal activity that requires an immediate response, please call 9-1-1.

I'm not sure I understand why this would take a long time to remove.
Their make-shift treehouse/home could end up costing the city money if for instance someone were to fall out of it, the floor gives out, etc.
Then these squatters will be suing......

It is also very unfair to the nearby neighbors and degrades our neighborhoods.

Hello Lisa. This encampment is located on private property. Our Police Officers have cleared the encampment out numerous times however it is up to the property owner to clean the encampment up. Legally the City does not have authority to remove this encampment until the property owner works with the Police Department to remove it.

Oh I see, thank you for your reply!