In best practices such as: n Using heavy construction and remediation equipment meeting Tier 3 and Tier 4 federal emission standards, reflecting the highest standards in the industry n Using standard construction and remediation equipment augmented to further minimize emissions n Using alternative fuels and renewable sources of energy for equipment and vehicles n	 Maximizing recycling, onsite reuse of materials and reductions in liquid and soil wastes generated during remediation Through these efforts, PG&E reduced cumulative greenhouse gas emissions by as much as 11,000 metric tons, reduced liquid wastes by an estimated 5.5 million gallons and added more than $12 million to the local economies near our remediation projects.