Changes

*[[Bioswales]] (surface)

*[[Bioswales]] (surface)

*[[Trees| Soil cells]] (surface)

*[[Trees| Soil cells]] (surface)

*[[Permeable paving| Permeable pavements]] (surface)

*[[Permeable pavements| Permeable pavements]] (surface)

*[[Dry ponds]] or infiltration basins (surface)

*[[Dry ponds]] or infiltration basins (surface)

}}

}}

#contaminated soils or sites with high risk of contamination from on-site activities (i.e. pollution hot spots),

#contaminated soils or sites with high risk of contamination from on-site activities (i.e. pollution hot spots),

#in areas of known or implied karst topography,

#in areas of known or implied karst topography,

#on unstable or steep slopes (15 to 20%),

#on unstable or steep slopes (>15%),

# to treat construction site runoff,

# to treat construction site runoff,

#to treat combined sewer overflows,   

#to treat combined sewer overflows,   

#where prohibitions and/or restrictions exist per approved Drinking Water Source Protection Plans (e.g. should not be used to treat pavement runoff within 2 year time of travel wellhead protection areas; see MOECC guidance).

#where prohibitions and/or restrictions exist per approved Drinking Water Source Protection Plans (e.g. should not be used to treat pavement runoff within 2 year time of travel wellhead protection areas; see MOECC guidance).

<br>

<br>

Infiltration facilities should be designed with drainage modifications where:  

Infiltration facilities should be designed with modifications where:  

#the underlying bedrock is within 1 m below the bottom of the proposed BMP, or

#the underlying bedrock is within 1 m below the bottom of the proposed BMP, or

#the seasonal high groundwater level (i.e. water table) comes within 1 m below the bottom of the proposed BMP.

#the seasonal high groundwater level (i.e. water table) comes within 1 m below the bottom of the proposed BMP.

==Planning==

==Planning==

===Hydrogeology===

===Hydrogeology===

The Conservation Authorities Geoscience Group has prepared a guidance document which attempts to standardize the hydrogeological study requirements for development applications made to Conservation Authorities. It is a helpful guide for all low impact development applications which include infiltration. It is provided with the caveat that not all sections or content are necessary or appropriate for every case. Pre-consultation with your Conservation Authority and municipality is strongly recommended in all cases.  

The Conservation Authorities Geoscience Group has prepared a guidance document which attempts to standardize the hydrogeological study requirements for development applications made to Conservation Authorities. It is a helpful guide for all low impact development applications which include infiltration. It is provided with the caveat that not all sections or content are necessary or appropriate for every case. Pre-consultation with your local conservation authority and municipality is strongly recommended in all cases.  

'''[http://www.lsrca.on.ca/Shared%20Documents/permits/hydrogeological%20_guidelines.pdf?pdf=Hydrogeological-Guidelines Hydrogeological Assessment Submissions Conservation Authority Guidelines for Development Applications]'''

'''[http://www.lsrca.on.ca/Shared%20Documents/permits/hydrogeological%20_guidelines.pdf?pdf=Hydrogeological-Guidelines Hydrogeological Assessment Submissions Conservation Authority Guidelines for Development Applications]'''

==Beginning a BMP design?==

==Beginning an infiltration BMP design?==

See [[Design infiltration rates]]

See [[Design infiltration rates]]

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==See also==

==See also==

*[[Groundwater]]

*[[Groundwater]]

[[category:Infiltration]]

[[category:Infiltration]]