Michael Mitchell has been involved in the plumbing trade since 1973. He is the senior plumbing inspector for the City and County of San Francisco, a post he’s held since 2000. Altogether, he’s been a plumbing inspector with the city and county for 17 years. Besides his various certifications in plumbing and plumbing inspections, he also holds a Doctorate of Jurisprudence, specializing in Civil Procedure. Mike is an assistant professor at the College of San Mateo, Calif., where he leads the Inspection of Plumbing course. He also teaches at UA Local 467 in Trade Related Math and the Plumbing Code, and was a Plumbing Code instructor for the PHCC.