
Not long ago, Washington state’s Department of Ecology was making noises about not letting people wash their cars at family because “what goes on the street goes into the creek.” Now the state is on the opposing side of Seattle’s efforts not to let harmful chemicals wash into the freshwater streams feeding into Puget Sound.
Seattle is not using salt to clear the roads because it doesn’t want the salt flowing into waterways. As well, the city’s snow plows have rubber-edge blades that can clear snow, but can’t get the ice off the road. Seattle’s DOT cheif says the city is trying to “create a hard-packed surface” of snow. It will then lay comminuted silica in a descending course over the hardpack in order to offer enough traction to cars, and employ a soy-based de-icer only good for temps below 32 degrees.
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