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 3Ps: projects, procurement, and processes. These metrics were chosen as repeatable and effective measures of our performance and progress.

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 Highlights page.

Tetra Tech’s initial sustainability targets cover the five-year period between 2010 and 2015. This is the last year of reporting on those initial goals.

Overarching Corporate Metrics

Reportable Metric Related GRI Performance Indicator Metric Target 2015 Status Improvement from 2014 Improvement from Baseline
Revenue Growth Economic > Economic Performance – EC1 15% average annual growth rate through 2015 $2.3 billion -7% 4%
Headcount Growth Labor Practices > Employment - G4-LA1 15% average annual growth rate through 2015 13,000 0% 24%
Carbon Emission Annual Reporting Environmental > Emissions, Effluents and Waste – EN16, EN17 & EN18

Reduce GHG emissions by 20% per associate by 2015

2.56 metric tons CO2e per associate CY 2015

23%

38%

Real Estate

Reportable Metric Related GRI Performance Indicator Metric Target 2015 Status Improvement from 2014 Improvement from Baseline
Footprint Environmental > Energy – EN5 Maximize space efficiency and reduce footprint 267.83 square feet per associate -11% -10%

Information Technology

Reportable Metric Related GRI Performance Indicator Metric Target 2015 Status Improvement from 2014 Improvement from Baseline
Percent of Computers Less than 5 Years Old Environmental and Economic Maximize use of new energy efficient computers 95% 1% 7%
Percent of Tetra Tech on Tetra Linx Environmental and Economic 100% of operating units on web-based administrative system 93.7% by revenue 3% 9.7%
Number of Associates per IT System Servers Environmental > Energy – EN6

Increase

25.4 associates per server

11%

168%

Health and Safety

Reportable Metric Related GRI Performance Indicator Metric Target 2015 Status Improvement from 2014 Improvement from Baseline
Improving Health and Safety Performance Tracking Labor Practices > Occupational Health and Safety – LA7 Recognize health and safety efforts and raise company awareness through occupational health and safety awards and recognition Received multiple national and client recognitions for our safety performance (view) N/A N/A
    Demonstrate executive leadership and oversight Now accredited in every Canadian province where Tetra Tech works through the Certificate of Recognition (COR™) for a fully implemented health and safety program that meets Canadian national standards N/A N/A
    Increase percent of employees who acknowledge their responsibility for safe work performance

In 2015 93% of employees completed the acknowledgement of responsibility for safe work performance

N/A (biannual) 28%
    Increase number of project managers who receive advanced project management training addressing health and safety

185 employees received PM Level 2 training.

-14% 23%
    Demonstrate continual improvement toward achieving and maintaining a zero Lost Workday Incident Rate (LWDIR) and Total Recordable Incident Rate (TRIR) better than the industry average

Enterprise-wide TRIR and LWDIR outperformed others in our industry by 34% and 50%, respectively

40 operating units completed 2015 without a lost work day injury or illness, more than 17 million hours collectively

N/A N/A

Human Resources

Reportable Metric Related GRI Performance Indicator Metric Target 2015 Status Improvement from 2014 Improvement from Baseline
Certifications per Associate Labor Practices > Training and Education – LA11 Increase year over year 0.62 certifications per associate -2% 130%

Shared Services

Reportable Metric Related GRI Performance Indicator Metric Target 2015 Status Improvement from 2014 Improvement from Baseline
Office Supply Costs per Associate Environmental > Energy – EN6 Reduce use of consumable office supplies $487 per full time employee 5% 1%
Number of Courier Shipments per Associate Environmental > Transport – EN29 Reduce 4% increase in courier shipments per associate -4% 7%

Corporate Business Development Support/Communications

Reportable Metric Related GRI Performance Indicator Metric Target 2015 Status Improvement from 2014 Improvement from Baseline
Use of Electronic Marketing Instead of Print Media as Measured by Printing Costs Environmental > Materials – EN2 Increase number of materials delivered electronically 41,418 electronic conference invitations, holiday cards, and magazines delivered 49% 409%
    Increase paper avoidance 6,860.11 pounds of paper avoided by electronic invitations, cards, and magazines 85% 1598%
    Increase cost savings

$45,370.07 production and mailing cost avoided by electronic invitations, cards, and magazines

99% 348%
    Increase number of visitors to the marketing Intranet website 1,341 unique visitors per month 24% 371%
    Improve the sustainability of paper materials used 100% of paper is FSC-certified Target met in 2011 and maintained 100%
      87.2% of paper is FSC-certified and recycled -4% 42%

*Metrics updated to reflect improved methodology: Carbon Emission Annual Reporting (baseline normalized per square foot), Courier Shipments per Associate (per-associate calculation updated), and Use of Electronic Marketing (paper weight and printing volume measures updated).