SDCL § 46A-3A-7: West River Water Development District.

The West River Water Development District is established. The district is comprised of:

(1) Haakon, Jones, and Mellette counties;

(2) That portion of Jackson County north of the White River, except Interior township and the unorganized Cedar township;

(3) That portion of Pennington County east of the Cheyenne River, except Castle Butte, Conata, Crooked Creek, Flat Butte, Imlay, and Scenic townships;

(4) The unorganized territory of the Badlands;

(5) That portion of the unorganized territory of east central Pennington County east of the Cheyenne River; and

(6) That portion of Lyman County north of the White River.

Source: SL 1984 (SS), ch 1, § 12; SL 1985, ch 357; SL 1990, ch 362, § 2; SL 2025, ch 186, § 8.