Abstract: A grease interceptor for use with a wastewater treatment system comprises a tank which is divided by a baffle into a first chamber and a second chamber. Wastewater flows from an inflow pipe into a first chamber of the tank. The wastewater may then flow through openings in the baffle to a second chamber of the tank. The wastewater may then flow through an outlet pipe in the second chamber to exit the system. The inflow pipe may comprise a flow restrictor which may restrict the flow of wastewater within the inflow pipe.

Abstract: A multi-piece plastic tank is provided and includes a tank top section, wherein the tank top section defines a tank top opening surrounded by a top flange that extends along the length of the top flange, a tank bottom section having, wherein the tank bottom section defines a tank bottom opening surrounded by a bottom flange that extends along the length of the bottom flange, wherein the top flange and bottom flange are configured to be connected to form the multi-piece plastic tank.

Abstract: A drainage apparatus for fluid runoff comprising one or more grates and a frame having a top portion configured to accommodate the one or more grates. The frame includes a first plurality of plates located within the frame and positioned below the one or more grates. One or more cross members are connected to plates of the first plurality of plates, each of the one or more cross members extends between at least two plates of the first plurality of plates. Each of the one or more grates is secured to a cross member of the one or more cross members.

Abstract: A disclosed corrugated end cap includes a corrugated frame having one or more corrugations defined by one or more sets of alternating peaks and valleys. The end cap also includes one or more ribs disposed in one or more of the valleys and one or more valley reinforcements disposed in the valleys and running over a top surface of the corrugated frame. For example, the one or more ribs may be configured to increase a resistance of the frame to bending. Additionally or alternatively, the top surface, a front surface, and a rear of the corrugated frame surround a recess configured to receive latch ridges from a stormwater chamber.

Abstract: Stormwater management systems, methods, and apparatuses for containing and filtering runoff may be provided. In one implementation, a flared end ramp for managing flow of material into a stormwater chamber may be provided. The flared end ramp may include an inlet end configured for connection with a pipe, a side wall of the flared end ramp having a rounded profile at the inlet end; an outlet end configured for placement within the stormwater chamber; and an inclined surface extending between the inlet end and the outlet end of the flared end ramp and configured to deliver material from the pipe into the stormwater chamber. The outlet end of the flared end ramp may have a larger width than the inlet end of the flared end ramp such that the inclined surface is angled laterally outward from the inlet end toward the outlet end.

Abstract: Weir systems, methods, and apparatuses for containing and filtering runoff may be provided. In one implementation, a modular weir may be used to isolate suspended solids from a flow of water in a stormwater management crate array. The modular weir may include a plurality of weirs configured to isolate the flow of water from the stormwater management crate, a plurality of column grooves along the one or more weirs configured to extend around a plurality of columns in the stormwater management crate, an inlet located at a first end of the plurality of weirs configured to receive the flow of water within the stormwater management crate, and a cap located at a second end of the plurality of weirs configured to contain the flow of water within the modular weir.

Abstract: The embodiments of the present disclosure provide an in-line surface drain. The in-line surface drain may comprise a cylindrical frame and a plurality of concentric rings coupled to the cylindrical frame. The plurality of concentric rings may be configured to protrude outward from a bottom external surface of the cylindrical frame, and the diameters of the plurality of concentric rings may be different. At least one of the plurality of concentric rings may be configured to detachably accommodate a riser pipe.

Abstract: A kit, and an assembly formed with components of the kit, comprises a fitting for the top of a septic tank or water tank, one or more frusto-conical rings shaped to interconnect with an identical ring to form an undulating wall riser that extends upwardly from the tank top fitting, and a lid. The lid is shaped for multi-purpose use: closing off the opening of either the large end or the small end of a ring/riser—whichever is uppermost, or closing off the fitting when there is no riser. Joints between the rings of the riser, and between a ring/riser and the fitting of a tank, are held together by latching tabs and/or screws. A fitting may be integral with a tank top.

Abstract: A flared end ramp for managing and distributing fluid runoff. The flared end ramp may have an inlet end configured to connect to a pipe, a plurality of protrusions on the upper side of the inlet end, and an outlet end. An inclined surface may extend between the inlet end and the outlet end of the flared end ramp, the outlet end of the flared end ramp has a larger width than the inlet end of the flared end ramp such that the inclined surface is angled laterally outward from the inlet end toward the outlet end. The flared end ramp may include a tab positioned on an edge of the outlet end, the tab extending vertically relative to the outlet end. The flared end ramp may be placed inside a stormwater chamber, and the tab may be positioned outside of the stormwater chamber.

Abstract: A multi-piece plastic tank is provided and includes a tank top section, wherein the tank top section defines a tank top opening surrounded by a top flange that extends along the length of the top flange, a tank bottom section having, wherein the tank bottom section defines a tank bottom opening surrounded by a bottom flange that extends along the length of the bottom flange, wherein the top flange and bottom flange are configured to be connected to form the multi-piece plastic tank.

Abstract: This disclosure relates generally to corrugated pipe, and more particularly to corrugated pipe with an outer wrap. In one embodiment, a pipe includes an axially extended bore defined by a corrugated outer wall having axially adjacent, outwardly-extending corrugation crests, separated by corrugation valleys. The pipe also includes an outer wrap applied to the outer wall. The outer wrap may include fibers and plastic. The outer wrap may span the corrugation crests producing a smooth outer surface.

Abstract: An in-line surface drain may comprise a cylindrical frame and a plurality of concentric rings coupled to the cylindrical frame. The plurality of concentric rings may be configured to protrude outward from a bottom external surface of the cylindrical frame, and the diameters of the plurality of concentric rings may be different. At least one of the plurality of concentric rings may be configured to detachably accommodate a riser pipe.

Abstract: Fluid runoff systems, methods, and apparatus for processing fluid runoff are provided. In one implementation, a base plate for receiving an inlet casting at a drain basin may be provided. The base plate may include a flat surface with an aperture and an outside edge surrounding the flat surface; a raised lip may surround the outside edge and a flange may extend in a horizontal direction away from the raised lip. The flange may define a flat surface for an inlet casting. The base plate may further include one or more sets of tabs located on the underside of the plate. In another implementation, a fluid runoff system may comprise an inlet casting, a base plate, a drain basin, and a pipe. The base plate may include one or more sets of tabs for connecting with the drain basin.

Abstract: This disclosure relates generally to corrugated pipe, and more particularly to corrugated pipe with an outer wrap. In one embodiment, a pipe includes an axially extended bore defined by a corrugated outer wall having axially adjacent, outwardly-extending corrugation crests, separated by corrugation valleys. The pipe also includes an outer wrap applied to the outer wall. The outer wrap may include fibers and plastic. The outer wrap may span the corrugation crests producing a smooth outer surface.

Abstract: A rectanguloid shape six-walled thermoplastic box for receiving and dispersing stormwater, when part of an array of like boxes that is buried in media, has interior bracing in the form of an irregular polyhedron structure comprised of up to six hollow pyramids. The truncated apexes of the pyramids meet near the center of the box. The base of each hollow pyramid is contact with, attached to, or integral with a wall at the location of an opening within which is a grate. A box may be injection molded as a single piece molding with living hinges. Alternatively, the pyramidal polyhedron structure may be formed as a separate element and placed within the walls of a box.

Abstract: A flared end ramp for managing and distributing fluid runoff. The flared end ramp may have an inlet end configured to connect to a pipe, a plurality of protrusions on the upper side of the inlet end, and an outlet end. An inclined surface may extend between the inlet end and the outlet end of the flared end ramp, the outlet end of the flared end ramp has a larger width than the inlet end of the flared end ramp such that the inclined surface is angled laterally outward from the inlet end toward the outlet end. The flared end ramp may include a tab positioned on an edge of the outlet end, the tab extending vertically relative to the outlet end. The flared end ramp may be placed inside a stormwater chamber, and the tab may be positioned outside of the stormwater chamber.

Abstract: A fluid management system including an inlet configured to receive pre-processed fluid is provided. The system includes a filtering apparatus configured to remove contaminants from the pre-processed fluid. The filtering apparatus includes a plate having a first opening. A first manifold pipe is disposed on the plate and includes one or more perforations and a second opening at least partially aligned with the first opening. A second manifold pipe is disposed on the plate and includes one or more perforations. Filter media is disposed between the first manifold pipe and the second manifold pipe and is configured to separate the contaminants from the pre-processed fluid. The system also includes an outlet coupled to the second manifold pipe to receive processed fluid from the filtering apparatus.