I will add some information about who is in charge of each of these types and if I know, a word or two about why they exist.

AA\\ 
ACS\\
Admin\\
CCIC\\
CCP Outreach\\
COFHE\\
COFHE-2\\
CTW\\
Classroom Management\\
Continuing Studies Student\\
DSS\\
Dean\\
Employee\\
Faculty\\
FacultyTest\\
GLSP ALUM\\
GLSP Lecturer\\
GLSP Registrar\\
GLSP Student\\
General EP\\
Generic\\
Graduate Dept. Registrar\\
Graduate Student\\
Graduate Student ALUM\\
HOLDING do not assign\\
HS Scholar EP\\
HelpDesk\\
Public Safety\\
Registrar\\
ResLife\\
SRadmin\\
STC\\
Sample Custom Student\\
Sample Student\\
Stu Financial\\
Student\\
StudentTEST\\
Teaching\\
Telecom\\
Temp EP\\
WesCareer\\
WesCareerTest\\
WesNet\\
WesNetOld\\
WesNetTest\\