Sterility issue w/ sterile surgical pack.Hair found on "bandage, esmark 6"x12' lat free" contained within sterile surgical supply pack.Discovered by scrub person while finishing sterile set-up of one-of-three table.Outcome was two of the three sterile set-ups had to be replaced, 5 sterile instrument trays, and sterile supplies contained on two of the three sterile tables.Contamination discovered and contained prior to patient use.