Complete Stormwater Pump Station

International-Matex Tank Terminals|Richmond, CA|770 GPM - 35' TDH

jweddell500gpm - 1,000gpm, Corrosive/ Caustic Pumping, Inlet Outlet Structures, Oil/Water Separators, Pacific, Stormwater, Stormwater Runoff

An IMTT industrial storage facility needed this stormwater pump station to collect runoff and pump it to treatment onsite. The duplex submersible pumps were engineered to handle the expected medium flows of stormwater. The pumps also needed to handle water that could potentially carry oil or other industrial chemicals stored on the site. An above-grade valve assembly used ball valves and check valves that were vertically integrated for easy access. The pump station electrical controls were located on an existing wall in the water treatment area.

Solyndra Commercial Complex

Solyndra|Fremont, CA|450 GPM - 35' TDH

jweddell300gpm - 500gpm, Pacific, Stormwater, Stormwater Runoff

This new commercial complex required two new stormwater pump stations designed to meet low flows of runoff. The manholes and hatches were designed at grade to integrate seamlessly with the brick patio and walkway. Submersible centrifugal pumps in a duplex configuration discharge to below grade valve assemblies accessible by valves cans. The UL listed control panels are contained by stainless steel NEMA enclosures and include intrinsically safe barriers. Both lift stations were designed with the same primary components for site standardization.

Los Angeles Trade and Technical College

Los Angeles Trade and Tech College|Los Angeles, CA|600 GPM - 26.2' TDH

jweddell500gpm - 1,000gpm, Pacific, Schools, Stormwater, Stormwater Runoff

The expansion of a college campus required this stormwater pump station to handle medium flows of stormwater runoff. To meet the required pumping rate, 7.5 hp Ebara submersible centrifugal pumps were designed in a duplex configuration. This pumping system was designed with dual force mains and check valves integrated in the discharge piping to simplify the engineering for the system. Romtec Utilities provided the complete electrical engineering plans for the UL listed control panel. Floats for primary and backup liquid level-sensing were supplied to give the system added redundancy.

Walmart in Gardnerville, Nevada

Walmart|Gardnerville, NV|1,300 GPM - 23.4' TDH

jweddell1,000gpm - 5,000gpm, Detention Ponds, Pacific, Parking Lot Drainage, Stormwater, Stormwater Runoff

A new Walmart Supercenter required this package stormwater pump station to handle runoff from its large impervious parking lot. A good sized detention basin collects the runoff water during a storm event, including from surrounding properties. Ebara submersible pumps then empty the detention pond at a high flow rate through just 45’ of force main into a gravity line that flows to treatment. An outdoor UL listed control panel includes float controls for primary and backup liquid level-sensing and a basic alarm for communications.

The Marke Luxury Apartments

The Marke Luxury Apartments|Santa Ana, CA|3,591 GPM - 24.8' TDH

jweddell1,000gpm - 5,000gpm, 100-Year Storm, Mixed Use, Pacific, Stormwater, Stormwater Featured, Stormwater Runoff

This stormwater pump station was designed to handle variable flows of stormwater runoff. The typical stormwater expectations called for low flow pumping, but this pump station needed to handle high flows as well. Two different sizes of submersible centrifugal pumps were used; a 7.5 hp pump and a 25 hp pump. The pumps required differently sized discharge piping and valves for each pump. A PLC control panel handles all lift station functions including starting and stopping on level, SCADA options, an autodialer for communications, and a soft starter for the large pump.