Each of us is at least 60% water, and there are more of us every day. Yet our water supplies have not increased. Nowhere is this more apparent than in drought-plagued California, where half the nation’s fruits and vegetables are grown. But out of the deepest need, the most innovative ideas emerge. From potable and non-potable reuse to aquifer recharge, we’re working to help communities turn scarcity into sustainable, standard-raising solutions, for a more resilient, renewable supply of the stuff that makes us human.
Our Recycled Water expertise includes:
30-Inch Diameter, 6-Mile Long, Recycled Water Transmission Main, Otay Water District
LEE + RO was responsible for the alignment study, surveying, geotechnical evaluation, environmental and permitting services, right-of-way acquisition, preliminary design, final design and construction support services for a $17 million, 6-mile long, 30-inch diameter recycled water pipeline connecting the City of San Diego’s South Bay Water Reclamation Plant to the District’s 450-1 Recycled Water Reservoir. The construction employed a wide variety of techniques including horizontal directional drilling (HDD) to cross Interstate 805, Otay River, and State Route 905. This project was awarded “Water Reuse Project of the Year,” “ASCE Outstanding Project of the Year” and “CMAA Project Achievement Award.”
San Joaquin Reservoir Flow Control Facility, Irvine Ranch Water District
LEE + RO provided planning, design and construction support services for a $3 million, flow control and pumping facilities project. This project consisted of an 8,250 gpm pumping station (with three 75 hp, 4,125-gpm, VFD-driven pumps), a flow control facility, hypochlorite disinfection facility, and sub-surface water collection and pumping facility at the base of the reservoir dam. The District purchased the reservoir from the Metropolitan Water District and converted it into a reclaimed water storage reservoir, integrating it into their Zone B recycled water system.
Parker Canyon Recycled Water Reservoir and Bourdet Pumping Station Improvements, Walnut Valley Water District
LEE + RO provided engineering, design, and construction support services for a $4.5 million project consisting of a new 1.3 MG capacity recycled water reservoir, the addition of a new 750 gpm capacity vertical turbine pump as well as adding two stages to each of the two existing vertical turbine pumps at the Bourdet Booster Pump Station. A cast-in-place, two-celled concrete reservoir was ultimately designed after circular Type I + III pre-stressed concrete, rectangular concrete, and steel reservoirs were analyzed. Other improvements consisted of extensive grading, retaining walls, access roads and landscaping, electrical, controls and SCADA system improvements.
Turtle Rock Zone B+ Recycled Water and Zone 6A Potable Water Pump Stations Upgrading, Irvine Ranch Water District