Enacts new GS 143-350.1, setting out seven principles that constitute the state's water resources policy, which shall govern administrative and judicial determinations regarding water use in the state and any political subdivision. These relate to the protection of water resources, the use of both regulatory and voluntary programs, the encouragement of conservation and efficiency, increased storage capacity and reuse, recognition of the roles of landowners, and preservation of landowner water rights. Amends GS 143-215.22 to prohibit the state or a political subdivision from limiting a landowner's withdrawal and use of water, except as provided in Articles 21 and 38 of GS Chapter 143, Part 4 of Article 7 of GS Chapter 143B, and Article 10 of GS Chapter 130A, when the water is from (1) an impoundment constructed by or owned by the landowner; (2) wells constructed on the landowner's property; or (3) other natural sources of water on the landowner's property, such as captured stormwater, springs, and artesian wells. Amends GS 143-355.3, which deals with water shortage emergency powers, to provide that nothing in the section shall limit a landowner from withdrawing water from the sources listed above for use in agricultural activities (as defined in GS 106-581.1).