Torrent Resources began to install drainage systems within California starting in Los Angeles County in 1989, but construction of the MaxWell® in the City of Los Angeles did not get underway until 2008. Under the auspices of the Watershed Protection Division of the Bureau of Sanitation, Torrent was selected for a pilot program to be conducted in an area which suffered from long-standing water following rainfall events. (READ MORE) The site that was eventually selected by the City of L.A. for officially monitoring the performance of our designs became known as the Glen Oaks Project, located in Sun Valley at the intersection of Glen Oaks and Sunland Boulevards.
Success on this venture has resulted in numerous referrals for participation on other projects in Southern California.
For years, stormwater from the hillside above had been conveyed to the intersection of two heavily traveled roadways below. The flooded condition that resulted was further exacerbated by the large amount of suspended solids in the runoff. To alleviate these problems, the MaxWell® Plus Systems were installed to pre-treat and recharge the runoff. The systems receive inflow via curb inlets discharging into junction structures, which are in turn interconnected to the Primary Settling Chambers of the MaxWell Plus Systems. Both drywell chambers of the systems are located immediately off the streets in the sidewalks for easy cleaning access.
As part of the study, the City wished to track the amount of water being pre-treated and recharged. Torrent was able to provide a means of measuring the volume of processed water by making a modification to their standard dual-chambered drywell design. A separate containment structure installed between the chambers housed a connecting pipe configured with a propeller meter and a register extension. This addition allowed City personnel to accurately read and assess exactly how much water has been re-inserted into the subgrade.