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* For use as planting soil for a vegetated stormwater practice , the topsoil must contain a minimum of 5% organic matter by dry weight or be amended so, through addition of an organic soil conditioner;
* For use as planting soil for a vegetated stormwater practice , the topsoil must contain a minimum of 5% organic matter by dry weight or be amended so, through addition of an organic soil conditioner;
* For use in producing bioretention filter media Blend B (water quality treatment priority), the topsoil must contain at least 9%, and not greater than 36% clay-sized particles and at least 2% organic matter by dry weight.
* For use in producing bioretention filter media Blend B (water quality treatment priority), the topsoil must contain at least 9%, and not greater than 36% clay-sized particles and at least 2% organic matter by dry weight.
* Must have a pH of between 6.0 and 7.8;
* Must have a pH of between 6.0 and 8.0;
* Must have a sodium absorption ratio less than 15;
* Must have a sodium absorption ratio less than 15;
* Must have a cationic exchange capacity greater than 10 milliequivalents per 100 grams (meq/100 g).
* Must have a cationic exchange capacity greater than 10 milliequivalents per 100 grams (meq/100 g).