2021 CORPORATE RESPONSIBILITY REPORT I 66 • At the Las Vegas facility, a 310 linear-foot planter was removed to reduce water used to maintain plants, which we estimate will save 164,250 gallons of water • At Cleveland HeartLab, all toilets are now fitted with water-saving flushers • In the Dallas lab facility, all urinals were replaced with flushless units Occupational health and safety The Quest Diagnostics EHS team believes our critical business objectives include workplace safety; the health of our em ployees, contractors, and others working in our facilities; and the protection of the environment. We are committed to proactively managing workplace safety to eliminate risks and hazards as well as ensure regulatory compliance. In 2021, we invested in safety data management software which will allow us to improve performance, gain insight, and drive compliance. Our safety management system aligns with ISO 45001 and ANSI Z10 elements by: • Creating regional/business unit strategic plans that review current metrics, evaluate and develop EHS programs, identify opportunities to reduce workplace injuries, address trends, mitigate risks, generate action plans for identified risks and professional development of our EHS professionals • Periodically conducting internal audits at all facilities • Encouraging employee engagement in safety committees • Requiring employees to review and acknowledge job hazard analyses • Providing monthly job-specific safety training to employees through the company’s learning management system Waste reduction Quest works with suppliers to find products and processes that can minimize waste across our operations. In 2021, several of our facilities completed new waste management projects which we believe reduced hazardous waste or landfill waste, such as: • Our Las Vegas facility eliminated pH wastewater disposal, thus reducing hazardous waste generation by 285,000 lbs • At our West Hills, CA and Sacramento, CA labs, all paperwork was required to be recycled, reducing our future annual landfill waste by 210,000 lbs • Cleveland HeartLab ™ began recycling and reusing Styrofoam shipping containers • Specimen cup and stool container redesigns, among other changes, reduced Quest’s plastic waste by 105 tons in 2021, for a total of 407 tons saved since the project initiated in 2018 • Reduced the amount of paper waste in our PSCs by an additional 270 tons in 2021, for a total of 546 tons saved since the project initiated in 2018 Environmental s ustainability drives operational excellence (continued) Table 5: Waste by Type (Metric tons per 1M test requisitions) Measure 2021 General Waste 89.7 Biohazardous Waste 49.8 Chemical Waste 5.2 Recycling 45.8 Water reduction Our facilities continue to look for creative ways to reduce water consumption. Overall, in 2021, we reduced our water consumption by 16%. • In California, several of our logistics hubs transitioned to waterless fleet vehicle washing, which we estimate will save 32,490 gallons of water per year Table 6: Water Consumption (1,000 m3 ) per 1M test requisitions Measure 2021 Water Consumption 3.28 TABLE OF CONTENTS 2021 OVERVIEW COVID-19 RESPONSE PROMOTING A HEALTHIER WORLD CREATING AN INSPIRING WORKPLACE BUILDING VALUE REFERENCES