Please note: This is a Sole Source Notification. The Washington State Department of Natural Resources (DNR), contemplates awarding a sole source contract to Kenmore Air Harbor Inc. (Kenmore Air) to provide removal and recycling of approximately 600 used tires from three Kenmore Air owned seaplane floats located in South Lake Union, specifically within Kenmore & Roche Harbor. Kenmore air will also replace the tires with a black rubber fendering system. DNR received an appropriation in the FY24 legislative supplemental budget to fund the removal of tires from docks serving floatplanes in salmon-bearing waterways. These tires contain an antidegradant called 6PPD. 6PPD stands for the chemical N-(1,3-dimethylbutyl)-N’-phenyl-pphenlenediamine. This chemical prevents automotive tires from breaking down and helps them last longer.
