In one aspect the present invention provides an adjustable head infiltration conduit configured to distribute water adjacent to the conduit and to convey water away from the conduit. This conduit includes a conveyance chamber defining a water flow path through the conduit, and at least one inlet port associated with one end of the water flow path defined by the conveyance chamber. Also provided is at least one outlet port associated with an end of the water flow path distal from said at least one inlet port, and an infiltration chamber in fluid communication with the conveyance chamber. This infiltration chamber includes at least one water permeable area configured to allow water out of the conduit. The infiltration chamber also includes at least one removable intermediate lateral baffle orientated substantially perpendicular to the water flow path defined by the conveyance chamber with the upper edge of said at least one removable intermediate lateral baffle defining the boundary of the infiltration chamber with the conveyance chamber. The removable intermediate lateral baffle or baffles forming at least two retention cells within the infiltration chamber arranged to temporarily store water before dispersal through at least one water permeable surface of the infiltration chamber.

Stormwater management systems, apparatus, and methods for containing and filtering runoff may be provided. In one implementation, a stormwater chamber may be provided. The stormwater chamber may be configured for use with an endcap for connecting a pipe to the stormwater chamber, and the stormwater chamber may include a first end with a scalloped edge portion. The end cap may include a sleeve with an interior projecting edge, an outward projecting edge, a bore shaped to receive a pipe, a first cutout portion at the upper half of the outward projecting edge of the sleeve, and a second cutout at the bottom half of the interior projecting edge of the sleeve. The stormwater chamber may also include a flared end ramp with an inlet end, an outlet end, and a protrusion on the outside of the inlet end that abuts the flared end ramp with the end cap.

An overlapping joint coupling system for septic chambers where the end of one chamber is designed to fit over the opposite end of an adjoining chamber of like construction, and where the overlapping end coupling section includes a retention pocket for receiving a flexible snap locking member formed in the underlying end coupling section, and the connection of the end coupling sections forms a joint which enables one chamber to pivot in a horizontal plane relative the other chamber of like construction.

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.

A modular assembly is provided for managing the flow of fluid beneath a ground surface. The assembly can feature a plurality of modules, each having a deck portion and opposing sidewalls extending downward therefrom. The opposing sidewalls can slope outward and away from one another as they extend downward from the deck portion. The modules further comprise a shoulder for supporting a link slab, and to support and separate modules that are stacked during transportation or storage. The sidewalls can define an interior fluid passageway having a flared configuration from top to bottom. The link slab and sidewalls of adjacent modules can define an exterior fluid passageway in fluid communication with a lateral fluid channel. A method is also provided for making a precast concrete module for use in the modular assembly.

Leaching chamber units have an elongated body with a length extending between a closed end and an open end. The closed end of the leaching chamber unit may define one or more fluid flow openings. The elongated body of the leaching chamber unit has an arcuate, arched or convex cross-sectional shape and includes strengthening ribs extending transverse to the length of the elongated body. The strengthening ribs are arranged in a regular, repeating pattern along the length of the elongated body. The repeating pattern and complementary shape of the strengthening ribs allow the disclosed leaching chamber units to be nested for storage and transport. The disclosed leaching chamber units can be mated with each other at a range of longitudinal positions to form leaching chamber assemblies of a desired interior volume and leaching capacity

An improved liquid run-off disposal system is described having an infiltration chamber 72 with first and second sidewalls 74. In cross-sectional view the first and second sidewalls 74 each include an inner surface 76 and outer surface 78, and each sidewall 74 includes a plurality of integrated louvre-shaped apertures 80. In cross-sectional view each louvre-shaped aperture 80 includes an upper surface 82 and a lower surface 84 which are angled upwards from the outer surface 78 and protrude inwards from the inner surface 76 into the interior of the infiltration chamber 72. The upper and lower surfaces 82, 84 comprise a plurality of angled sections, the angled sections being arranged so as to form a substantially vertical flow path through a portion of the aperture 80. The angled sections of the upper and lower surfaces 82, 84 are arranged at an angle and of a length so as to substantially overlap when viewed in a horizontal direction. The overlapping region “Y.sub.1” ensures that the apertures 80 will admit the exit of water but substantially inhibit the entry of soil wherein, in use, when liquid run-off is piped into the infiltration chamber 72 it can drain away through the apertures 80 and into the surrounding soil.

A floodwater redistribution assembly for redirecting flood waters to a predetermined location for irrigation and municipal water service includes a subterranean vault that is positioned adjacent to a body of water known for periodic flooding. An inlet pipe is integrated into the subterranean vault to direct the water from the body of water into the subterranean vault. An outlet pipe is integrated into the subterranean vault to direct the water outwardly to a predetermined location for the purposes of irrigation and municipal water service. A ball valve is positioned within the subterranean vault to facilitate the water to flow into the outlet pipe. A ball valve control unit is coupled to the ball valve. The ball valve control unit is in remote communication with a remote control source and the ball valve control unit actuates the ball valve between an open position and a closed position.

A wastewater leaching chamber having asymmetric corrugations running transversely along the length of the chamber, where each transverse corrugation has a wide section on one side and a narrow section on the opposed side of the chamber, such that the corrugation walls run at an angle to the longitudinal axis of the chamber. The widest corrugation side of the chamber has a large straight sidewall, and the corrugation forms an arch which curve across and downward from the top of the straight sidewall to the narrow side of the corrugation at the opposing base of the chamber. The asymmetric arch is comprised of a multi radius curve from the top of the straight side to the opposing base footer.

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.