An underground charging pile for new energy vehicle has a green plant, a buried pit, and a charging pile. The buried pit has a water storage device having two water storage tanks, each tank is communicated with the buried pit, a group of propulsion springs are fixed to the two water storage tanks, the two propulsion springs are fixedly provided with a pushing, an upper end of the charging pile is fixedly provided with a cover plate, a bottom of the charging pile is fixedly provided with a supporting plate, a lifting rod is fixed between a lower of the supporting plate and a lower of the buried pit, a water spraying device is arranged to two side walls of the buried pit.

A system and method for an underground stormwater storage system which may comprise a pit, a structure, and a liner. The structure may be disposed within the center of the pit and surround by the porous backfill and wherein outlets are disposed on the crown of the structure. A liner may form the outer layer of the pit. A method for releasing stormwater may comprise capturing stormwater from a surface, containing the stormwater within a structure, releasing a volume of the stormwater from the structure and draining an additional volume of the stormwater from the crown of the structure from an outlet when the structure is capturing more stormwater than it is releasing.

The instant application pertains to a pressure relief door for a waste water treatment system. The pressure relief door comprises a pressure relief door frame configured to be attached to a baffle wall or a tank floor or a tank cover. A pressure relief door cover is attached to the pressure relief door frame with a hinge and axle. At least one torsion spring is attached to the pressure relief door cover so that the pressure relief door is allowed to open only when the pressure on the pressure relief door cover exceeds a predetermined pressure.

A flood control system for remotely and automatically controlling flooding and water storage on reservoirs. The flood control system generally includes a central computer that controls the water level by controlling or communicating with flow control gates positioned near a number of culverts, wherein each flow control gate typically includes: (a) a control unit communicatively coupled to the central computer, the control unit capable of sending local condition data to the central computer via a wireless connection and further capable of receiving control commands from the central computer; (b) an input/output interface capable of receiving signals or data regarding physical conditions proximate the flow control gate, the input/output interface coupled to the control unit; and (c) a water shutoff valve controllable by the control unit and positioned to selectively allow or block the flow of water through each culvert, wherein each control unit controls each water shutoff valve.

A modular home includes a first housing portion including a first floor, a ceiling, at least three walls, a first vertical edge of a first wall, a second vertical edge of a second wall, and an opening between a horizontal edge of the first floor, a first horizontal edge of the first ceiling, and the first and second vertical edges. The modular home further includes a second housing portion including a second floor, a ceiling, at least three walls, a third vertical edge of a third wall, a fourth vertical edge of a fourth wall, and an opening between a horizontal edge of the second floor, a second horizontal edge of the second ceiling, and the third and fourth vertical edges. The first vertical edge is coupled to the third vertical edge by a hinge, and the second vertical edge is configured to be coupled to the fourth vertical edge.

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.

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.

Systems, devices, and methods for providing nutrient removals in an up flow filtration storm water system for treating water to very high clean levels using filtration media. A filtration media can be supported by a screen above a floor in a vault allows for incoming storm water to pass into a void space above the floor into the screen and filtration media and then out an outlet to the vault. The filtration media can include recyclable and/or natural particles. A top screen can be placed on top of the filtration media. Layers of river rocks can be placed on top of and below the filtration media. The captured debris can drop to the floor. The long lasting filtration media can be cleaned by being backwashed.

A stormwater collection, treatment, and aquifer replenishment installation includes a stormwater drain for receiving surface stormwater, a dry well downwardly extending underground to an outlet proximate to a water table over an aquifer, a tank structure at least partially disposed underground and coupled with the stormwater drain and the dry well in stormwater communication, a stormwater treatment system enclosed within the tank structure between the stormwater drain and the dry well for converting surface stormwater into treated stormwater, the tank structure for conducting surface stormwater to the stormwater treatment system between the stormwater drain and the dry well, and the dry well for receiving and gravity feeding treated stormwater from stormwater treatment system to the outlet.

A device for emptying a sewer well that comprises a lower relatively heavy fraction and an upper relatively light fraction, the device comprising a lower suction nozzle with a lower suction opening for removing the lower fraction, said lower suction nozzle being connected to a pump, characterized in that at a position remote from the lower suction nozzle the device comprises an upper suction nozzle for removing the upper fraction.