Other water quality devices - system design information

Other water quality devices - system design information
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Device	Drainage area	Entrance/exit velocity	Dimensions	Materials	Layout Recommendations (physical location, off-line placement)	Enhancement opportunity	Sizing calculations
SNOUT	Same as catch basin	Same as catch basin	Variety of sizes and shapes fit most rectangular and round manholes [1]		Existing manholes and sumped catch basins (sump depth must be >36 inches or 2.5 x outlet pipe diameter	Yes	See Layout
Prinsco Preserver Skimmer	Same as catch basin	Same as catch basin	Several size options, all adjustable to fit rectangular and round structures. Minimum 4' structure dia.	Stainless steel & HDPE	Existing & new manholes and sumped catch basins. Sump depth must be 1.5x outlet pipe diameter or greater.	Yes. All parts retrofittable through a 24" opening.	Part size determined via associated pipe diameter. See standard detail.
Eliminator	Same as catch basin	Up to 2 cfs if Elimo-Filter used [2]	8, 10, 12, 15, and 18-inch sizes	High Density Polyethylene	Existing manholes and sumped catch basins	Yes	Generally larger than pipe diameter
Floatable boom			Float height = 2-8 inches, Skirt/curtain = 8-16 ft, Section length 25-100 ft	Blocks of expanded polystyrene, PVC	Calm to medium current water bodies downstream of nearshore construction zones, dredging, demolition	NO	NA
Hood	Same as catch basin						Generally larger than pipe diameter