Changes

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!Wood chip

!Wood chip

|Doesn't leach phosphorus<br>Promotes nitrogen removal from water||-

|Doesn't leach phosphorus<br>Promotes nitrogen removal from water||

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!Peat Moss

!Peat Moss

|Doesn't leach phosphorus||Must be extracted from natural wetlands

|Doesn't leach phosphorus||Must be extracted from natural wetlands

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!Shredded paper <ref>Urban Drainage and Flood Control District. (2010). “Bioretention.” <http://udfcd.org/criteria-manual/volume-3/t-03-bioretention/> (Mar. 15, 2018).</ref> (see: Pittmoss)

!Shredded paper (e.g., Pittmoss)

|Doesn't leach phosphorus<br>Promotes denitrification

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