Ideas for Social Organizations at Berkeley that are substance-free?

My daughter is having an issue finding a social organization that doesn’t have members who regularly party and/or smoke weed. She looked into the Christian sorority, but found out they have been disenfranchised (not sure the actual term) by the Greek system at Berkeley because of an issue with discrimation against two gay girls, so that is a non-starter for my daughter. Any help is appreciated.