CSUMB is a non-impacted campus with no impacted majors. It should be a safety for applicants meeting baseline CSU admission standards (2.50 recalculated GPA for California residents, 3.00 recalculated GPA for non-California residents; see Freshman: Admission Requirements | CSU ).
SDSU is impacted with all majors impacted (competitive admission for space available). Unfortunately, it does not give information about historical admission thresholds for prior years like some CSU campuses.
Note that CSUs with impacted majors may have college GPA requirements to change into impacted majors.
CPP publishes part of its admission index calculation and historical thresholds by major at https://www.cpp.edu/admissions/freshmen/freshman-student-profile.shtml . The main part is the recalculated GPA * 1000 + 450, although various bonus points are not specified.