Abstract: A primer composition that resists peeling and cracking is provided that includes an acrylic copolymer having a Tg of between ?15 and ?35° C.

Abstract: The invention provides a bioretention system comprising one or more chambers and a high flow bypass system with top and bottom weirs for water filtration and storm water flow management. The invention also provides methods that are useful for managing storm water flow and inhibiting the flow of pollutants, debris, and other contaminants into drainage systems.

Abstract: A catch basin configured to filter water by way of a matrix filter and a filter pouch. If the matrix filter should become clogged, a bypass weir provides means of bypassing the matrix filter to prevent the catch basin from clogging.

Abstract: The invention provides a bioretention system comprising one or more chambers and a high flow bypass system with top and bottom weirs for water filtration and storm water flow management. The invention also provides methods that are useful for managing storm water flow and inhibiting the flow of pollutants, debris, and other contaminants into drainage systems.

Abstract: A catch basin configured to filter water by way of a matrix filter and a filter pouch. If the matrix filter should become clogged, a bypass weir provides means of bypassing the matrix filter to prevent the catch basin from clogging.

Abstract: An improved trench drain filter and modular system therefor for intercepting and treating run off water in a trench drain before discharge into a drainage system. The filter elements include a perforated pipe covered with one or more layers of geotextile material, which is, in turn, covered with a permeable fabric membrane. In a preferred embodiment a pouch containing an absorbent agent is disposed within the pipe upstream of the discharge point, and in another embodiment a multi-filter modular unit is provided, the unit including a plurality of filter elements disposed in an enclosure having fluid flow control baffles to direct fluid to and through the filter elements.

Abstract: An erosion control roll including an elongate core member defining an interior space, being open at both ends, and having openings along its length, a pervious filter member open at both ends and surrounding the elongate core member; and, an apron disposed on the upstream side of the pervious filter member, said apron running the length of said filter member, and extending a predetermined distance therefrom.

Abstract: An improved trench drain filter and modular system therefor for intercepting and treating run off water in a trench drain before discharge into a drainage system. The filter elements include a perforated pipe covered with one or more layers of geotextile material, which is, in turn, covered with a permeable fabric membrane. In a preferred embodiment a pouch containing an absorbent agent is disposed within the pipe upstream of the discharge point, and in another embodiment a multi-filter modular unit is provided, the unit including a plurality of filter elements disposed in an enclosure having fluid flow control baffles to direct fluid to and through the filter elements.

Abstract: A stormwater treatment device for removing floatables, solids and suspended particles and the like from stormwater run off, whereby a removable assembly is provided for installation into a manhole basin, the assembly including a pass-through member which receives stormwater from an incoming drainage system, and diverts low flows to at least one or more vortex separators, while allowing for high flows to bypass the separators and flow through the assembly untreated to exit the basin without diversion.

Abstract: An apparatus and method for use in conjunction with grassy swales and sidewalk cross drains to collect and filter or otherwise treat dirty or polluted storm water runoff or other fluid is disclosed. One or more prefilters are installed at one or more inlets to a grassy swale or a sidewalk cross drain, such that at least a portion of any storm water runoff or other passing fluids are at least partially filtered or otherwise treated to some extent before entering the grassy swale. The prefilters comprise an inlet adapted to deliver fluid therethrough; an outlet adapted to deliver fluid therethrough, one or more structural elements connecting to inlet to the outlet, and one or more filtration elements attached to at least one of the structural elements.

Abstract: An apparatus and method for reducing the amount of silt, sedimentation and pollution in storm water runoff as it passes across and through roofs, gutters, downspouts and other building components is disclosed. This is accomplished by placing a downspout filter comprising one or more water filtration or treatment elements directly into the flow of the fluid to be filtered or otherwise treated. Direct insertion of the downspout filter into a downspout at some point between the downspout inlet and outlet is preferable, such that all fluid passing through the downspout is forced to encounter this downspout filter. Such insertion may involve the cutting or separation of the downspout itself. This downspout filter also comprises one or more high flow bypasses to minimize the possibility of obstructions or backups, and, in addition to one or more filtration elements, may also comprises one or more additional water treatment elements, such as chitosan.

Abstract: An apparatus and method for use in conjunction with grassy swales and sidewalk cross drains to collect and filter or otherwise treat dirty or polluted storm water runoff or other fluid is disclosed. One or more prefilters are installed at one or more inlets to a grassy swale or a sidewalk cross drain, such that at least a portion of any storm water runoff or other passing fluids are at least partially filtered or otherwise treated to some extent before entering the grassy swale. The prefilters comprise an inlet adapted to deliver fluid therethrough; an outlet adapted to deliver fluid therethrough, one or more structural elements connecting to inlet to the outlet, and one or more filtration elements attached to at least one of the structural elements.

Abstract: A catch basin filtration system is disclosed. A filter body is dimensioned to fit within an drain inlet forming a trough obstructing at least a portion of the inlet. The filter body is supported by a filter body support dimensioned to cooperatively engage with the interior walls of the inlet and with the filter body to substantially maintain said filter body in a pre-selected shape and position within the inlet. One or more connectors removably connect the filter body to the filter body support.