PG&E - The Gas Paper?

By 1914, PG&E had become the largest system on the West Coast and ranked among America's five large utilities. Building long pipelines from Texas to bring in natural gas was a new cleaner, cheaper way. To prevent rust from corroding, the cooling PG&E uses the corrosion inhibitor Chromium-6. chromium-6 is one of the cheapest and most efficient commercially available corrosive inhibitors.