Protecting Water

Of the water used for hydrostatic testing, we returned 100 per cent safely to the environment. We did not consume any water with our testing. COMPANY-WIDE FOCUS CAREFULLY CONSIDERED CROSSINGS Weare committed to responsible water use-whether we are using the water in our offices or facilities, or when we are hydrostatically testing pipelines. Weare committed to carefully planning pipeline routes to limitwater crossings. When water crossings are necessary, we use advanced techniquessuch as directional drilling and isolation valves, whichminimize environmental impact. We also time our activities to limit theimpacton wildlife. ENBRIDGE MONITORING AND LEAK DETECTION LEADING PRACTICES We invest heavilyininitiatives to ensure that our systems arefit for the job. In 2015, we invested more than $xx mllon in Wemonitor our pipelines 24/7/365 using advanced systemsandleak detection technologies. Ifwe spotaproblem, we shut downapipeline within minutes while mobllizing a safe and effective response. programs throughout our operations in Canada and theUS. Water: respecting every drop We recognize the ecological, cultural and social significance of water. This informs the way we engineer water crossings to the highest standards. While we do not use water to transport liquid hydrocarbons or natural gas, we do use water for vital hydrostatic testing of a pipeline's integrity.