You can check the Final status thread from last year to see if any accepted/waitlisted or rejected applicants posted their stats and/or MCA points. http://talk.collegeconfidential.com/cal-poly-san-luis-obispo/2128373-cal-poly-slo-2019-final-status.html
Since the major is found in the College of Agricultue and Environmental Sciences below are the average admitted stats:
SLO GPA: 3.98 ACT: 28 SAT: 1316
Projected acceptance rate for the major in 2019 was just above 70%.