A study was done to examine student opinion of the social environment on the University of California Davis campus in Spring 1990 as a follow up to a similar study conducted in 1987. The study used the Student Opinion Survey and mailed it to a stratified random sample of 1,649 students. Of the surveys sent, 57.7 percent were returned. The following findings are reported: (1) students are, for the most part, satisfied with the campus' social environment; (2) they are more satisfied than their national peers; (3) satisfaction declined between 1987 and 1990; (4) as in the 1987 survey, satisfaction levels among ethnic groups varied considerably with Black students substantially less satisfied that undergraduates overall; (5) students were well satisfied with food, housing and campus-sponsored mass transit services, but dissatisfied with parking facilities and services; (6) students expressed mixed levels of satisfaction with social interactions on campus with concern about racial harmony; (7) undergraduates considered racial intolerance the most serious problem among the intolerance issues including in the survey; (8) students saw alcohol abuse as the most serious of the health issues; and (9) students were more concerned with personal security and safety issues on campus than in 1987. Included are 14 tables and an appendix detailing student responses. (Author/JB)