Changes

Please see below a profile view of an infiltration chamber installed below a parking lot in a shopping centre development in Brampton, Ontario. The stormwater chamber system receives roof, road and parking lot runoff from a large drainage area that then drains to a receiving waterbody. The system was designed to provide temporary storage and controlled release of runoff from storms to minimize impacts to the receiving waterbody (elevated water temperatures, higher velocity flows, potential for elevated flood conditions, etc.). A 0.3m deep gravel bed with no outlet below a portion of the chamber area provides additional water storage in the event of a large or prolonged storm/rainfall event to provide better retention of sediment and the means to evaluate whether or not substantial infiltration occurs. Orifice flow restricting plates mounted on the outlets of each manhole cause stormwater to back up into the chambers and contributing storm sewers so that when flow into the manhole exceeds the maximum flow rate of the orifice plate, stormwater backs up into the chambers safely.

Please see below a profile view of an infiltration chamber installed below a parking lot in a shopping centre development in Brampton, Ontario. The stormwater chamber system receives roof, road and parking lot runoff from a large drainage area that then drains to a receiving waterbody. The system was designed to provide temporary storage and controlled release of runoff from storms to minimize impacts to the receiving waterbody (elevated water temperatures, higher velocity flows, potential for elevated flood conditions, etc.). A 0.3m deep gravel bed with no outlet below a portion of the chamber area provides additional water storage in the event of a large or prolonged storm/rainfall event to provide better retention of sediment and the means to evaluate whether or not substantial infiltration occurs. Orifice flow restricting plates mounted on the outlets of each manhole cause stormwater to back up into the chambers and contributing storm sewers so that when flow into the manhole exceeds the maximum flow rate of the orifice plate, stormwater backs up into the chambers safely.

Drawings are from STEP's, [https://sustainabletechnologies.ca/app/uploads/2015/04/UndergroundInfiltrationSystems_TechBrief_April2015.pdf Technical Brief - Evaluation of Underground Stormwater Infiltration Systems]. The drawing was adapted from Counterpoint Engineering - Bramport Commercial Development, City of Brampton, Airport Road and Bovaird Drive – Site Servicing Plan Drawing No. SW-S1. Project No. 04160. May 7, 2007. Vaughan, ON. <ref>https://sustainabletechnologies.ca/app/uploads/2015/04/UndergroundInfiltrationSystems_TechBrief_April2015.pdf </ref> document. For further details about this cross section drawing please visit the link.

Drawings are from STEP's, [https://sustainabletechnologies.ca/app/uploads/2015/04/UndergroundInfiltrationSystems_TechBrief_April2015.pdf Technical Brief - Evaluation of Underground Stormwater Infiltration Systems document]. The drawing was adapted from Counterpoint Engineering - Bramport Commercial Development, City of Brampton, Airport Road and Bovaird Drive – Site Servicing Plan Drawing No. SW-S1. Project No. 04160. May 7, 2007. Vaughan, ON.  

<ref>https://sustainabletechnologies.ca/app/uploads/2015/04/UndergroundInfiltrationSystems_TechBrief_April2015.pdf </ref>. For further details about this cross section drawing please visit the link.

[[File:Infiltration chamber profile.PNG|1100px]]

[[File:Infiltration chamber profile.PNG|1100px]]

Please see below a profile and plan view of a soakaway (also known as a dry well) installed on a residential property connected to the home's downspout. The drawing depicts how the installation can be installed with a typical downspout disconnection (or bypass), and fitted with an overflow that connects to the home's stormwater lateral that then enters the municipal system. This configuration of a soakway allows for full infiltration and includes an inspection port for monitoring purposes.

Please see below a profile and plan view of a soakaway (also known as a dry well) installed on a residential property connected to the home's downspout. The drawing depicts how the installation can be installed with a typical downspout disconnection (or bypass), and fitted with an overflow that connects to the home's stormwater lateral that then enters the municipal system. This configuration of a soakway allows for full infiltration and includes an inspection port for monitoring purposes.

Drawings are from the New Jersey Department of Environmental Protection's [https://www.njstormwater.org/bmp_manual2.htm NJ Stormwater Best Management Practices Manual]. <ref>https://www.njstormwater.org/bmp_manual2.htm</ref> document. For further details about this cross section drawing and other LID BMPs please visit the link.

Drawings are from the New Jersey Department of Environmental Protection's [https://www.njstormwater.org/bmp_manual2.htm NJ Stormwater Best Management Practices Manual]. <ref>https://www.njstormwater.org/bmp_manual2.htm</ref>. For further details about this cross section drawing and other LID BMPs please visit the link.

[[File:Residential soakaway profile.PNG|1000px]]

[[File:Residential soakaway profile.PNG|1000px]]