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|'''[[Stormwater Tree Trenches]]'''
|'''[[Stormwater Tree Trenches]]'''
|1
|1
|5:1 to 15:1||[[Underdrain]] recommended<br>if < 15 mm/hr||1 to 1.5||5 to 10||0 to 2||No||4m- Building Foundation<br>Underground Utilities, <br>Drinking Water Wellhead<br>Protection Areas||No||2 yr}
|5:1 to 15:1||[[Underdrain]] recommended<br>if < 15 mm/hr||1 to 1.6||5 to 10||0 to 2||No||4m- Building Foundation<br>Underground Utilities, <br>Drinking Water Wellhead<br>Protection Areas||No||2 yr}