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ZG Provides Engineering Services to Upgrade 230 kV "S" Line

ZG was selected by Ferreira construction to provide permitting, project management and engineering design services for the upgrade to the 230 kV “S” line within Imperial County, CA. The 20-mile line interconnects to the Imperial Irrigation District (IID) El Centro and Imperial Valley substations. The project will increase the rating of the line from 370 MW to 800 MW, with estimated completion in 18 months. (

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