Tetra Tech’s sustainability metrics are used to report, evaluate, and track our performance. By evaluating our contributions to sustainability, we have the opportunity to improve management, make our operations more efficient, and provide better long-term solutions for our clients—solutions that address critical global issues, environmental challenges, and the values important to our stakeholders.

In compiling our Sustainability Report Card, we measure our sustainability progress in core areas of company operations. Each metric corresponds with one or more performance indicator from the Global Reporting Initiative (GRI), the internationally predominant sustainability reporting protocol for corporate sustainability plans. The indicators reported apply to our business in a meaningful way and represent ongoing activities related to Tetra Tech’s projects, business practices, and community engagement.

To track our progress and improvements, we established a current score or progress estimate for each target. Some metrics are tracked by fiscal year while others are tracked by calendar year, as specifically noted below. The scores are updated annually to reflect our sustainability progress and achievements.

Visit our Sustainability Performance Indicators page to learn more about how these metrics correspond to economic, environmental, and social responsibility.

Tetra Tech's Sustainability Report Card provides an overview of our sustainability performance, but cannot be inclusive of the full range of our employees' sustainability activities around the world. To see selected examples of sustainability initiatives across Tetra Tech, please visit our Sustainability Achievements page.

In 2016 Tetra Tech developed its goals for 2020. In several cases, we have added new metrics or updated methods for measuring our progress towards meeting our goals.

All metrics are for calendar year 2018 unless otherwise noted.

Improvement from 2017 2020 target achieved

Overarching Corporate Metrics

Measure Related GRI Performance Indicator 2018 Report Change from 2017 2020 Goal
Revenue Growth Economic > Economic Performance – EC1 $2.96 billion FY 2018 8% 15% average annual growth rate
Headcount Growth Labor Practices > Employment – G4-LA1 More than 17,000 1.5% 20,000
Carbon Emission Annual Reporting Environmental > Emissions, Effluents, and Waste – EN16, EN17, and EN18

1.84 metric tons CO2e per associate 2018

55% reduction since program inception*

-25.5% 50% reduction in GHG emissions from program inception
*Carbon Emission Annual Reporting: Composition of offices for which data was collected for 2018 was updated to be more reflective of Tetra Tech’s global presence and includes more Australian and Canadian offices than previous years.

Real Estate

Measure Related GRI Performance Indicator 2018 Report Change from 2017 2020 Goal
Footprint

Environmental > Energy – EN5

170 square feet per employee -8% Maximize space efficiency and reduce footprint per employee by approximately 10%
Sustainability of Office Space Environmental > Energy – EN7 42% of vendors received checklist 62% Sustainable Office Lease Considerations Checklist provided to 100% of vendors for corporate-negotiated leases each calendar year

Information Technology

Measure Related GRI Performance Indicator 2018 Report Change from 2017 2020 Goal
Percent of Enterprise Data Stored in the Cloud Environmental and Economic 46.4% -10% 80% of enterprise data resides on the cloud
Percent of Tetra Tech on Tetra Linx Environmental and Economic 87.8% -4.1% 100% of operating units on web-based administrative system
Number of Associates per IT System Servers Environmental > Energy – EN6

36.88 associates per server

13% 10% improvement year over year

Health & Safety*

Measure Related GRI Performance Indicator 2018 Report Change from 2017 2020 Goal
Occupational Health and Safety Awards and Recognition Labor Practices > Occupational Health and Safety – LA7 During 2018, 29 operating units in Tetra Tech qualified to receive the U.S. National Safety Council Perfect Record Award for 12 consecutive months without a Lost Workday Injury 32% 100% of U.S.-based Tetra Tech operations qualified to receive the U.S. National Safety Council Perfect Record Award for 12 consecutive months without a Lost Workday Injury
Executive Leadership and Oversight Labor Practices > Occupational Health and Safety – LA7

Included principles of Safety Leadership in the Tetra Tech Leadership Academy

Operational Leadership endorsed International Services Duty of Care Standards

Select Tetra Tech operations passed an external audit for continuing OHSAS 18001 Health and Safety Management Certification

N/A Demonstrate executive commitment to Tetra Tech's Health & Safety Program
Safe Work Performance by Employees Labor Practices > Occupational Health and Safety – LA7 Biennial effort (updated in 2017) N/A 100% of employees acknowledge their responsibility for safe work performance year over year
Lost Workday Incident Rate (LWDIR) and Total Recordable Incident Rate (TRIR) Labor Practices > Occupational Health and Safety – LA7
Maintained the 2018 enterprise LWDIR year over year (2017, 2018)
(33% better than the industry average)
Reduced the enterprise TRIR by 2% compared to 2017 (32% better than the industry average)
No change
-2%
Demonstrate continual improvement toward achieving and maintaining a zero LWDIR and a TRIR better than the industry average**
**NAICS Code 54 Professional Scientific and Technical Services, BLS Data 2016

*Health & Safety metrics are based on operational entities as defined for incident tracking.

Human Resources

Measure Related GRI Performance Indicator 2018 Report Change from 2017 2020 Goal
Document Automation Environmental > Materials – EN1 100% automation of onboarding, new hire, and related employee documentation 12% 100% automation of onboarding, new hire, and related employee documentation
Recruitment Activities Focused on Increasing Diversity Labor Practices > Diversity and Equal Opportunity – LA13 86% of Tetra Tech operations participate in outreach activities focused on increasing diversity in the workplace 1.2% 100% of Tetra Tech operations participate in outreach activities focused on increasing diversity in the workplace (including events, advertisements, and partnerships)
Leadership Training Labor Practices > Training and Education – LA11 178 employees participated in corporate-sponsored leadership training since program inception 20% Maintain strong career development program within the company

Shared Services

Measure Related GRI Performance Indicator 2018 Report Change from 2017 2020 Goal
Use of Recycled Office Supply Products Environmental > Materials – EN2 24% of consumable office supplies made from recycled material -11% 50% of consumable office supplies made from recycled material
Number of Overnight Courier Shipments per Associate Environmental > Transport – EN29 6 overnight deliveries per capita 20% < 6 overnight deliveries per capita

Corporate Communications

Measure Related GRI Performance Indicator 2018 Report Change from 2017 2020 Goal
Use of Electronic Marketing Materials Instead of Print Media Environmental > Materials – EN2 78% items delivered electronically 4% 75% of corporate marketing materials delivered electronically
Sustainability of Printed Media Environmental > Materials – EN2 99% recycled 1% 100% of paper used in corporate marketing materials recycled
99% FSC-certified -1% 100% of paper used in corporate marketing materials is FSC-certified
Sustainability of Events and Conferences Environmental > Materials – EN2 26.1% of corporate-sponsored event vendors received checklist -40% Sustainable Event Checklist submitted to 100% of venues for corporate-sponsored events

20% of events implemented green practices based on the Sustainable Event Checklist
15% events implemented green practices based on the checklist 20%

Corporate Social Responsibility

Measure Related GRI Performance Indicator 2018 Report Change from 2017 2020 Goal
Science, Technology, Engineering, and Mathematics (STEM) Program Society > Local Community – SO1

6,594 people reached in 2018

20,474 people reached since program inception

-15% 20,000 people reached through Tetra Tech-run or sponsored STEM activities or events since program inception
Employee Bike to Work Week (BTWW) Challenge Environmental > Energy – EN7 56 teams 47% 20% increase in number of teams participating in BTWW Challenge
Employee Involvement in Financial and In-kind Giving Society > Local Community – SO1 65% of offices reporting engage in charitable giving 7% Recognize employee engagement in community giving
Employee Involvement in Volunteering Society > Local Community – SO1 1.67 volunteer hours per employee 36% Recognize employee engagement in volunteer activities