Sustainability Report

The report presents Tetra Tech's 2021 sustainability baseline, including 411 million lives improved, 328,000 ML/year of water treated, saved, or reused, 16,800 MW/year of renewable energy identified, planned, or generated, and 20.6 million CO2e MT/year avoided or captured. It expands operational GHG reporting to Scope 1, 2, and 3, with 44,743 MT CO2e of total emissions and a 20% reduction target by 2025 from the 2021 baseline. The company also reports 21,000 associates and $426,805 in community contributions, alongside employee wellness, DEI, and volunteering initiatives.