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Toronto Hydro CR Report 2016

OUR ENVIRONMENT EFFLUENTS AND WASTE G4-DMA Management approach to effluents and waste and compliance Corresponds with Toronto Hydro’s Material Issue: Hazardous Waste and Spills Management; Waste, By-products and Recycling G4-EN23 Toronto Hydro has made a commitment to consider the environment in business practices. This commitment is core to the Environmental Policy at Toronto Hydro and requires the effective management of all environmental aspects of the organization. For example, Toronto Hydro undertakes a number of activities to prevent spills including the replacement of aging assets, completion of scheduled maintenance and inspections, and employee training and awareness. The generation and disposal of effluents and waste could have negative environmental impacts if managed improperly. To address and effectively manage this potential risk, policies, programs and procedures are in place. Plans for additional system-wide measures to improve environmental management and reduce the chance of spills occurring in the future have also been developed. These measures include: 1. Conducting more frequent condition-based inspections (i.e. more than once every three years) on transformers that are deteriorating (see the System Maintenance Program section for more details). 2. Revising standard inspection forms to include additional information regarding transformer condition, including detailed information related to oil leaks. 3. Appointing a single group to conduct all submersible transformer inspections to improve consistency in reporting. 4. Documenting all transformer defects, including oil leaks, with pictures. Toronto Hydro reviews the list of significant environmental aspects annually. When activities, products or services of the business are identified as a significant environmental aspect, programs and procedures are created and monitored to reduce or eliminate the risk to the environment. The programs and procedures are reviewed on an annual basis to ensure they continue to meet the needs of the EHSMS as well as to identify opportunities for continual improvement. Three significant environmental aspects have been identified for effluents and waste: • Handling and disposal of liquid hazardous waste • Handling and disposal of solid hazardous waste • Oil spills containing PCBs with a concentration of greater than two parts per million (ppm) Waste is generated at Toronto Hydro through operations and in the office environment. This includes both hazardous and non-hazardous waste. The handling and disposal of hazardous waste is strictly legislated. All hazardous waste is transferred and disposed of using provincially registered waste shipping and disposal companies. These companies use the appropriate disposal techniques based on the type of waste to minimize the impact on the environment. 80 TORONTO HYDRO I 2016 CORPORATE RESPONSIBILITY REPORT


Toronto Hydro CR Report 2016
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