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Line 65: + + + + + + + + + + + + − + − SWAMP, 2005 Infiltration trench Two years Clay to clay silt till over silty sand till Appox: 7:1 0.65 m >90% − SWAMP, 2002 Infiltration trench Two years Silty sand with clayey silt deposits Approx: 4:1 1 m 89% − CVC, 2016 Permeable pavement + bioretention Four years Clayey silt on silt till Approx: 6:1 ? 80% − CVC, 2016 bioretention Four years Silty clay Approx.: 10:1 ? 92% − CVC, 2016 bioretention Four years Silty clay fill over clay till 30:1 ? 72% − CVC, 2016 Permeable pavement Four years Silty clay fill over clay till 1:1 ? ? − 1. Represents depth of sump below underdrain or outflow pipe. In some cases, a flow control device was installed to slow outflow rates and enhance infiltration
→Performance studies on fine textured soils
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|Infiltration trench||Two years||Clayey silt||155:1||2 m||16%
|Infiltration trench||Two years||Clayey silt||155:1||2 m||16%
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|Infiltration trench||Two years||Clay to clay silt till over silty sand till||Approx: 7:1||0.65 m||>90%
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|Infiltration trench||Two years||Silty sand with clayey silt deposits||Approx: 4:1||1 m||89%
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|Permeable pavement + bioretention||Four years||Clayey silt on silt till||Approx: 6:1||?||80%
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|Bioretention||Four years||Silty clay||Approx.: 10:1||?||92%
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|Bioretention||Four years||Silty clay fill over clay till||30:1||?||72%
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|Permeable pavement||Four years||Silty clay fill over clay till||1:1||?||?
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|*Represents depth of sump below underdrain or outflow pipe. In some cases, a flow control device was installed to slow outflow rates and enhance infiltration
2. Also known as the Etobicoke Exfiltration system
2. Also known as the Etobicoke Exfiltration system