Basics
Underground Perf Pipe, Sediment Can and Swale
A series of distributed inline trenches that contain underground perforated pipe in a matrix of drain rock that captures and treats stormwater flow from adjacent roadways.
Applicable Observation Types
Material Accumulation using Stadia Rod Discrete Value Observation - - 35% -
Wetland and Upland Species Vegetative Cover Percent-based Observation 0% 10% 15% -
Conveyance - Inlet Condition Pass/Fail Observation n/a n/a pass/fail -
Conveyance - Outlet Condition Pass/Fail Observation n/a n/a pass/fail -
Infiltration - CASQA Drawdown Method Pass/Fail Observation n/a n/a 50% Runoff as Pass/Fail
Treatment BMPs
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