Our Water Quality Program aims to prevent pollution from entering surface waters. We do not discharge waste water into the environment; instead, we send all waste water to a sewage treatment facility. We have a robust monitoring system, we strategically use oil-water separators and de-icing pads and we educate the Sea Island community about water quality.
We set clear targets for reducing impacts to water quality, including a 2020 target that strives for zero water samples with glycol concentration above the Canadian Glycol Guideline level of 100mg/L. In 2017, we tested 437 water samples from airport stormwater runoff for glycol. Six of these samples had glycol at concentration levels above the guideline.
While YVR did not achieve our target of zero water samples above the glycol guideline, we recognize that 2017 was another challenging year for snow operations—resulting in our glycol overage. In February 2017, we had eight days of snowfall and another significant cold-weather period. During winter operations throughout the year, we applied 3,582,501 litres of deicing fluid, 227 per cent more than in 2016. We will strive for our target in 2018 and beyond.
Glycol Sampling Data (Samples above 100mg/L)