The commission may, upon a hearing, investigate a single rate, classification, rule, contract, or practice, or any number thereof, or the entire schedule or schedules of rates, classifications, rules, contracts, and practices, or any thereof, of any public utility, and may establish new rates, classifications, rules, contracts, or practices or schedule or schedules in lieu thereof.
727
727.5
728
728.1
728.2
728.3
728.4
728.5
728.7
729
729.5
730
730.3
730.7
730.8
732
733
734
735
736
737
737.3
738
738.6
739
739.1
739.2
739.3
739.4
739.5
739.6
739.7
739.8
739.9
739.10
740
740.1
740.2
740.3
740.4
740.5
740.6
740.7
740.8
740.9
740.10
740.11
740.12
741
741.1
741.2
741.3
742
742.1
742.3
742.5
743
743.3
744
744.5
745
746
747
747.5
748.5
749
750
755
758
727.5
728
728.1
728.2
728.3
728.4
728.5
728.7
729
729.5
730
730.3
730.7
730.8
732
733
734
735
736
737
737.3
738
738.6
739
739.1
739.2
739.3
739.4
739.5
739.6
739.7
739.8
739.9
739.10
740
740.1
740.2
740.3
740.4
740.5
740.6
740.7
740.8
740.9
740.10
740.11
740.12
741
741.1
741.2
741.3
742
742.1
742.3
742.5
743
743.3
744
744.5
745
746
747
747.5
748.5
749
750
755
758