ARSD 74:51:01:53. Criteria for irrigation waters

The criteria of parameters for irrigation waters and the allowable variations that are not included under § 74:51:01:55 or Appendix B of this chapter, unless set under § 74:51:01:24, are as found in the following table: Parameter Criteria Unit of Measure Special Conditions Conductivity at 25C < 2,500 micromhos/cm 30-day average < 4,375 micromhos/cm daily maximum Sodium adsorption ratio < 10 see definition The criteria set forth in this section are applicable from April first through October thirty-first.