The water supply and wastewater treatment plan of a utility must include a preferred plan that sets forth the utility's selection of its preferred options for meeting the demand for water and requirements for wastewater treatment for the term of the resource plan. The preferred plan must include an explanation of the criteria that the utility used to select its preferred options. The explanation must include sufficient detail to enable the Commission to determine whether the utility's selection is justified.
Nev. Admin. Code § 704.5674
NRS 703.025, 704.210, 704.661