SAN FERNANDO GROUNDWATER BASIN REMEDIATION PROJECT SAN FERNANDO GROUNDWATER BASIN REMEDIATION PROJECT SAN FERNANDO GROUNDWATER BASIN REMEDIATION PROJECT SAN FERNANDO GROUNDWATER BASIN REMEDIATION PROJECT SAN FERNANDO GROUNDWATER BASIN REMEDIATION PROJECT

SAN FERNANDO GROUNDWATER BASIN REMEDIATION PROJECT

Los Angeles, California

Mass. Electric Construction Co. (MEC) managed all electrical installation for two new facilities as part of this progressive design-build project for Los Angeles Department of Water and Power (LADWP).

The North Hollywood Central and Tujunga Well Field Response Action Treatment Facilities were built to extract water from two sets of existing, non-producing groundwater wells as part of LADWP’s comprehensive, long-term plan to replenish and store contaminated groundwater at sites across the 175-square-mile San Fernando Groundwater Basin.

These new plants will treat 50 million gallons per day of groundwater in Tujunga and 25 million gallons per day in North Hollywood. The combined sites included 6,500 feet of raw-water pipelines, construction of ultraviolet (UV) buildings and the addition of several pumps. The facilities also contain purge systems, pre-treatment separators, 10 ultraviolet advanced oxidation process reactors, three liquid phase granular advanced carbon (GAC) systems with 54 new GAC vessels, and post-treatment systems that provide chlorination, ammonization and fluoridation.

MEC’s scope also included the installation of two, 5,000A main switchboards, 700,000 linear feet of wire, and the installation of 2,300 UV lamps for six UV reactors all centralized in the UV building.