Contech Plant|Redding, CA|660 GPM - 24.3' TDH

jweddell500gpm - 1,000gpm, Pacific, Parking Lot Drainage, Stormwater, Stormwater Collection, Stormwater Runoff, Stormwater Treatment

Contech Engineered Solutions needed this pump station to pump medium flows of clean water from a Contech filtration system to a nearby treatment pond. This system was designed with 5 hp Ebara pumps in a duplex configuration. A precast concrete wet well includes a pedestrian rated hatch and safety grate for reliable fall protection. Valve “cans” were included in the design and supply of this system for an economical control valve option. The control panel was a UL listed device in an outdoor enclosure, including a pressure transducer control device for redundancy.

City of Oakland Municipal Wastewater

The City of Oakland|Oakland, CA|1,339 GPM - 21.9' TDH

jweddell1,000gpm - 5,000gpm, Municipal Collection, Municipal Lift Station Replacement, Pacific, Replacements & Retrofits, Wastewater

This municipal water district replaced an existing lift station with this packaged lift station designed for the high sewage flow requirements. 15 hp submersible sewage pumps discharges to a below grade valve assembly, which includes valves, actuators, indicators, and access ports. The outdoor control panel utilizes a pressure transducer for primary liquid level sensing and float controls for backup. The panel also includes soft starters to reduce the inrush current, which can sap the onsite generator during pump starts.

Shea Center | Huntington Beach, CA | 1800 GPM - 28.19' TDH

jweddell1,000gpm - 5,000gpm, 100-Year Storm, First Flush, Mixed Use Development, Pacific, Stormwater, Stormwater Collection, Stormwater Runoff

A new 144,000 square feet, two building industrial center needed a large stormwater pump station to handle the runoff from the site. This triplex system includes a fourth, “jockey” pump to handle low flow dry-season runoff. The three large pumps are 20 hp Ebara submersible pumps designed for redundant pumping during high flow events. A pressure transducer serves as the primary level-sensing device and operates inside of a perforated stilling well designed to prevent solids from interfering with the sensor. The electrical controls are configured with a logic relay, intrinsically safe circuits, and communications.

City of San Mateo Seal

Bay Meadows | San Mateo, CA | 1218 GPM - 96' TDH

jweddell1,000gpm - 5,000gpm, Apartment Complexes, Commercial Development Sewer, Design and Engineering, Meter Vaults, Mixed Use Development, Municipal Collection, Now & Future Expansions, Odor Control, Pacific, Residential Development, Urban Growth, Wastewater

After the historic Bay Meadows racetrack closed down, a large residential development began that required this large wastewater lift station. A triplex configuration of 30 hp Flygt pumps handles the high flow rates of this system. A blower system was provided as part of the lift station odor control specified by the City. The lift station electrical controls comprised a PLC, float control level-sensors, and a backup generator. The panel includes an Arc Armor® enclosure that provides safe access to low-voltage controls and separate access for high-voltage circuits.