Wyoming Statute 18-5-306(a) (xi) provides for the disposition of any water rights appurtenant to the lands involved in a proposed subdivision development prior to its approval by the county officials. If there are no water rights found appurtenant to the lands to be subdivided, the developer should obtain a statement confirming this fact from the office of the State Engineer for submittal to the county officials.
The disposition of each subject water right must be in accordance with one or more of the four (4) procedures outlined below:
a. The subdivider may submit the documentation necessary to relinquish all or part of the water rights as follows:
b. The subdivider may petition for change in place of use of all or part of the water rights to new lands, or change all or part of the water rights to new uses, and thereby provide for the continued beneficial use of the water. A petition and accompanying map certified by a professional engineer or professional land surveyor licensed to practice in Wyoming will be required (see Section 11, this chapter entitled Authorizing Statutes and Part I, Chapter VIII, of the State Engineer's Regulations and Instructions on the preparation of maps).
c. In addition to disposing of the water rights under proposed roadways and other areas no longer to be irrigated, the subdivider may leave all or part of the water rights on the land and develop a plan for distribution within the subdivision. This plan will be evaluated so it does not introduce or perpetuate errors in the records of the State Engineer's Office.
The developer shall submit a plan, certified by a Professional Engineer or Professional Land Surveyor, to the State Engineer, and a copy to the local irrigation district board, association, or remaining appropriators in the case of an unorganized ditch or pipeline system for distribution of the water right(s) within and through the subdivision.
The Water Distribution Plan must show or satisfy that:
- (1) All existing water rights which will remain attached to the lands proposed to be subdivided.
- (2) How each water right is to be conveyed from the source to and beyond the lands proposed to be subdivided.
- (3) How the water is delivered to the various lots within the proposed subdivision.
- (4) How much acreage of each water right is to remain appurtenant to each lot within the proposed subdivision.
- (5) The water right items to be shown on the water distribution plan map for each proposed subdivision lot should include:
- (a) Permit number, proof and certificate record (if adjudicated), court decree priority (if applicable, and stream name, name of supply facility, priority date, and source of the water right(s).
- (b) Numbers of acres permitted or adjudicated and currently being actively irrigated.
- (c) The facility which conveys water from the source stream to the proposed subdivision, should be shown in its entirety, on the location map.
- (d) The means of conveyance of the water shall be shown to each lot entitled to water delivery. In addition, culverts to convey the delivery under driveways and streets within the subdivision should be shown.
- (e) Contour lines, direction of slopes or other means of showing direction of water flow should be included, if necessary, to assist in the evaluation of the means of delivery and application of water to the lots within the proposed subdivision.
- (f) Because property owners are responsible for the drainage of their waste water, depict how waste water is to be managed to insure that it does not damage any adjoining lands nor alter historic return flow patterns. To prevent property damage from irrigation or waste water to properties down-gradient within or below the proposed subdivision it may be necessary to design and show waste ditches or drains to capture waste water or return flow from the upper lots.
- (6) Since Wyoming law does not recognize any riparian water rights, lot owners have no right to water flowing past or through the proposed subdivision other than for permitted use(s) specifically appropriated or adjudicated to their lot via the State Engineer's Office or the State Board of Control. A statement to this effect shall be added to the plan.
- (7) Final approval by the State Engineer of the plan to deliver water to the proposed subdivision shall be sent to the appropriate county for notification pursuant to W.S. W.S. W.S. 18-5-301 through 18-5-318. Copies of the State Engineer's approval along with the map will also be sent to the subdivider, the water division superintendent, and the hydrographer/water commissioner.
- (8) Upon final approval of the subdivision by the appropriate county's Board of County Commissioners, a reproducible map of the subdivision plat shall be provided by the county to the State Engineer's Office for incorporation into its records. The approved water distribution plan should be available for inspection through the appropriate county agency.
- (9) The subdivider should allow at least ninety (90) days from the time the water distribution plan is submitted to the State Engineer's Office for final approval by the State Engineer. If the Water Distribution Plan is associated with a Petition or Authorization to Detach Water Rights, it is possible that the plan approval by the State Engineer will be delayed until the Board of Control has taken final action on the associated Petition or Authorization to Detach Water Rights at its quarterly meeting.
d. Authorization to Detach Water Rights
037-5 Wyo. Code R. § 5-6