The following site-specific criterion for irrigation waters is established for the Belle Fourche River from the Wyoming-South Dakota border to its confluence with the Cheyenne River:

Sodium adsorption ratio

< 6

See definition

Source: 31 SDR 29, effective September 13, 2004.

General Authority: SDCL 34A-2-11 , 34A-2-93.

Law Implemented: SDCL 34A-2-10 , 34A-2-11.