Abstract: Stormwater management systems, methods, and apparatus for containing and filtering runoff may be provided. In one implementation, a stormwater management crate for managing stormwater runoff may be provided. The stormwater management crate may include a top plate having a first plurality of support column attachments and one or more support column assemblies located below the top plate; the one or more support column assemblies being affixed to the top plate at the support column attachments. The stormwater management crate may further include a bottom plate having a second plurality of support column attachments located below the support column assemblies. Stormwater management crates may be arranged into an array and include side panels of variable heights. The array of stormwater management crates may be further wrapped in sediment impervious material and serve to restrict stormwater flow as part of a stormwater management system.

Abstract: A corrugated pipe manufacturing cell is configured to produce multiple corrugated pipes in parallel. The manufacturing cell may comprise an extrusion system that is capable of providing multiple independently regulated flows of plastic piping material to multiple die heads. The multiple die heads may feed a set of mold blocks having dual cavities for forming he multiple corrugated pipes. The pipe manufacturing cell may be converted between a first mode for producing large diameter single corrugated pipes, and a second mode for producing smaller diameter, plural corrugated pipes.

Abstract: A sleeve adapter for installation over a corrugated pipe is provided. The sleeve adapter may comprise a tubular body, wherein the tubular body may have a smooth outer surface, a first monofilament wire connected by a first one-way clamp, wherein the first monofilament wire may extend around a first end of the tubular body, a second monofilament wire connected by a second one-way clamp, wherein the second monofilament wire may extend around a second end of the tubular body, a flexible elastomer hinge extending around the tubular body, and a plurality of sealing surface fins extending outwardly from an inner surface of the tubular body.

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: Fasteners for fastening at least two parts, comprising one or more pins and one or more tabs on a first part, one or more holes and one or more connectors on a second part, and wherein the one or more pins of the first part are inserted into the one or more holes of the second part and the one or more tabs of the first part are snapped onto the one or more connectors of the second part to form a manifold.

Abstract: A coupling configured to connect a first pipe to a plurality of pipes comprising a first end and a second end, wherein the second end is tapered and comprises a plurality of lateral ribs and a plurality of longitudinal ribs, wherein each of the plurality of longitudinal ribs comprises a pliable and wedge-like shape, and each of the plurality of longitudinal ribs tapers toward the second end.

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: Disclosed embodiments relate to a grease interceptor for treating wastewater by separating and retaining contaminants. In some embodiments, the grease interceptor may comprise a tank having a top wall, a bottom wall, opposing side walls, an upstream end wall, and a downstream end wall, a baffle extending transversely between the opposing side walls and dividing the tank lengthwise into a first chamber and a second chamber, wherein the baffle comprises, a hollow center compartment having an inflow opening for receiving a flow of wastewater and a slot opening for discharging the flow of wastewater into the first chamber, a first outer compartment and a second outer compartment located on opposing sides of the center compartment, wherein the first outer compartment and the second outer compartment each comprises an inlet opening for receiving the flow of wastewater from the first chamber and an outlet opening for discharging the flow of wastewater into the second 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: 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.