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Line 1: − {{Clickable button|[[File:TTT.png|400 px|link=http://www.sustainabletechnologies.ca/wp/low-impact-development-treatment-train-tool/]]}}+ − [[File:Storage TTT.png|thumb|[[Dry ponds]] are found in storage element in the LID TTT.]] + − Dry ponds are a storage element in the Treatment Train Tool.+ + + + − + + + + + + + − !colspan = "2" style="background: darkcyan; color: white; align = center"|Stage Storage+ − + − + − + + + − + − + − + − + − +
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[[File:Storage TTT.png|300px|thumb|[[Dry ponds]] are found in storage element in the LID TTT]]
[[File:Pond curves.png|300px|thumb|The largest area is at the top, level 0 m; each subsequent lower depth has a smaller area]]
The Low Impact Development Treatment Train Tool can analyze annual and event-based runoff volumes and pollutant load removal for dry ponds.
{{Clickable button|[[File:TTT.png|350 px|link=https://sustainabletechnologies.ca/lid-ttt/]]}}
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{|class="wikitable"
|+A [[rainwater harvesting]] cistern as a storage element (key parameters)
|+A [[Dry ponds|dry pond]] as a storage element (key parameters) in the Treatment Train Tool.
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!colspan = "2"|Stage Storage
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|Name||Important to have a unique name, to connect it with the catchment area
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|Storage type||Dry detention ponds
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|Bottom elevation (m)||This is important to correspond with other components, <br>e.g. when the overflow is coupled to another BMP within a treatment train
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|Name||Important to have a unique name, to associate with the subcatchment (harvesting area)
|Maximum depth (m)||
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|Storage type||No removal
|Lined/unlined||Unlined (ideally)
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|Bottom elevation (m)||This will be 0 for installations at ground level, but will often be underground. This is of greater importance when the overflow is coupled to another component within a treatment train
|Underlying soil||Choose from five; sandy soils drain more quickly.
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|Evaporation factor||?
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|Maximum depth (m)||Height of the RWH cistern
|Suction head (mm)||?
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|Lined/unlined||Lined
|Saturated conductivity (mm/hr)||?
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|Evaporation factor||0
|Initial soil moisture deficit (fraction)||?
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!colspan = "2" style="background: darkcyan; color: white; align = center"|Curves
!colspan = "2" align = center"|Curves
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|colspan = 2|The Curves table is designed to accommodate ponds of roughly conical dimensions. Rainwater cistern are usually cuboid or cylindrical in shape, so that the area (m<sup>2</sup>) will remain the same throughout the depth. The top and bottom dimensions can be placed within the first two rows of the table.
|colspan = 2|The Curves table is designed to accommodate the side slopes. The top line begins at 0 m, with subsequent depths in the following lines.
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