Changes

===Designing within constraints===

===Designing within constraints===

{{textbox|Infiltration can still be optimized on low permeability soils with infiltration rates ≤ 15 mm/hr:

{{textbox|Infiltration facilities can be effective on low permeability soils with infiltration rates ≤ 15 mm/hr:

*See [[Underdrains| underdrains]] for [[Bioretention| bioretention]] and [[Stormwater Tree Trences|stormwater tree trenches]], and  

*See [[Underdrains| underdrains]] and  

*Results from STEP studies of infiltration practices on [[low permeability soils]]

*Results from STEP studies of infiltration practices on [[low permeability soils]]

Infiltration facilities should be designed with modifications where:  

Infiltration facilities should be designed with modifications where: