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Toronto Hydro 2014 CR Report_FINAL

EFFLUENTS AND WASTE We’ve made a commitment to conduct our business in a manner that minimizes impacts on the environment. This commitment is core to the environmental policy at Toronto Hydro and requires the effective management of all environmental aspects of our organization. Management approach to effluents and waste and compliance Corresponds with Toronto Hydro’s Material Aspect: Hazardous Waste and Spills Management; Waste, By-products and Recycling G4-EN23 We strive to prevent environmental spills through 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. 2. Revising our 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. We also work with various internal stakeholders within Toronto Hydro to identify what ISO 14001 defines as significant environmental aspects — that is, elements of our activities, products or services that may interact with the environment. When we have identified an area of our business as a significant environmental aspect, we create programs and procedures to reduce or eliminate its risk to the environment. The programs and procedures are reviewed on an annual basis to monitor progress. 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 polychlorinated biphenyls (PCBs) 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 ensure any impact on the environment is mitigated. 60 TORONTO HYDRO 2014 CORPORATE RESPONSIBILITY REPORT


Toronto Hydro 2014 CR Report_FINAL
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