See [[Phosphorus]] page for more information about phosphorus. See [[Additives]] page for guidance on [[Bioretention: Filter media| filter media]] additives to enhance retention of phosphorus and other types of pollutants in [[Bioretention]], [[Bioswale]], [[Stormwater Planter]] and [[Stormwater Tree Trenches| Stormwater Tree Trench]] facilities. | See [[Phosphorus]] page for more information about phosphorus. See [[Additives]] page for guidance on [[Bioretention: Filter media| filter media]] additives to enhance retention of phosphorus and other types of pollutants in [[Bioretention]], [[Bioswale]], [[Stormwater Planter]] and [[Stormwater Tree Trenches| Stormwater Tree Trench]] facilities. |