I'm curious if there is a standard range for what are considered to be low, moderate, and high CEC values. If I were to guess, I'd wager (approximately) the following. Does this seem reasonable?

Very low : < 5 Low: 5-10 Moderately low: 10 plus-15 Moderate: 15 plus-25 High:25 plus-50 Very high: 50-300 plus

AmyMays (talk)22:58, 26 April 2020

There are ranges of CEC that are considered low, moderate, and high but those ranges are affected by numerous soil properties and there is not one universal set of CEC ranges that will be applicable for all soil types. We stayed away from this explanation on purpose, since it goes beyond the scope of this course

MajaKrzic (talk)23:25, 26 April 2020