It is the purpose of this section and §§ 49-34-18 to 49-34-20, inclusive, to provide additional remedies to avoid the wrongful use of the facilities of utilities; and nothing in this section and §§ 49-34-18 to 49-34-20, inclusive, abridges or alters those rights of action or remedies existing prior to July 1, 1985.
SDCL 49-34-21