Changes

*Tight urban spaces where no landscaped practices can be squeezed in, and there is a low risk tolerance for flooding.}}

*Tight urban spaces where no landscaped practices can be squeezed in, and there is a low risk tolerance for flooding.}}

'''The fundamental components of an exfiltration system are:'''

'''The fundamental components of an exfiltration system are:'''

*perforated [[pipes]] connected to manholes and catchabasins,

*a gently sloping granular [[reservoir aggregate| reservoir]].  

*perforated [[pipes]] connected to maintenance holes and catch basins,

'''An additional components is:'''

*a gently sloping granular [[reservoir aggregate| storage reservoir]] below the perforated pipe.  

'''Optional components include:'''

*[[Geotextile]] to prevent migration of fines into the reservoir.  

*[[Geotextile]] to prevent migration of fines into the reservoir.