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ENVIRONMENTAL
INTRODUCTION
SUSTAINABILITY OBJECTIVES AND STRATEGY
SOCIAL
POLICIES AND TRANSPARENT REPORTING
APPENDICES
We implement water efficiency strategies to support our water reduction goals and minimize our impact on the environment. Our water efficiency initiatives include a combination of fixture and equipment retrofits, submeters, software, and pilot technology along with advanced water quality monitoring and testing.
WATER
LOW-FLOW RETROFITS AND UPGRADES As part of our sustainability standards, we continue to implement ultra-low-flow fixtures that perform 40%–50% better than code and are EPA WaterSense labeled.
Our Water Management Policy and conservation initiatives include:
• Set baseline and track against performance goals • Include updated water data in ENERGY STAR Portfolio Manager • Research, pilot, and implement water and waste management technologies and strategies in base building and tenant spaces • Install new or retrofit existing fixtures for ultra-low-flow models where possible, and in every retrofit or renovation • Implemented water submetering and real- time monitoring, machine learning, and management software across the entire commercial and multifamily portfolio as of 2023 • Annual water quality testing and compliance • Proactively prevent, identify, and fix leaks
WATER SUBMETERS To monitor and measure water consumption by end use and identify areas for targeted reduction, we install water submeters for key water systems. We track progress attributable to water efficiency upgrades of fixtures and HVAC systems, diagnose leaks from specific systems, and identify opportunities to increase water efficiency.
ADVANCED SOFTWARE-BASED WATER USE MONITORING
We have implemented machine learning software to detect and notify property management of unnecessary water usage and potential leaks, monitor water use contemporaneously, and analyze water use trends for all major systems across our commercial and multifamily portfolio. This technology enables our property managers and engineers to expertly manage water consumption and make informed operational decisions in real time. As of 2023, 100% of our commercial and multifamily portfolio has implemented this smart technology.
EMPIRE STATE REALTY TRUST: 2023 SUSTAINABILITY REPORT
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