Seems like there are already two CSU admissions (Chico and Sacramento).
For UCs and CSUs, the recalculated GPA by the method given in GPA Calculator for the University of California – RogerHub is most relevant. There are three versions – unweighted, weighted-capped (found on most UC web sites), and fully weighted. CSU uses weighted-capped, except that if college courses were taken in high school, they count double. CPSLO is an exception among CSUs in calculating with 9th as well as 10th-11th grade.