New Replenishment System

IMEG provided structural engineering services for Orange County’s Groundwater Replenishment System, designed to produce 23.4 billion gallons of purified water for the county’s residents. 

Drinking water will be produced by taking highly treated sewer water, which is currently released into the ocean, and purifying it through microfiltration, reverse osmosis and ultraviolet light with hydrogen peroxide advanced oxidation treatment. The purified water will become a part of a seawater barrier and will be pumped through a 13-mile pipeline to percolation ponds in Anaheim, where it will seep into deep aquifers and blend with Orange County’s other sources of groundwater, following the same natural filtering path rainwater takes through the ground.  

IMEG provided structural design for the microfiltration process facility and control room, microfiltration break tank/reverse osmosis transfer pump station, microfiltration backwash waste equalization tank, and generator building.