Yes it does flow next to Boeing in kent, The chum fishing I've done on the green has usually been much higher on the river; Auburn or above, just like to warm up for steelheading. I have fished this river for years and have never seen what I would call a big showing of chum. Some years better than others just like everywhere else. I have checked the whole lower river up to Metz. this week and have not seen anything worth mentioning. I would have been in hog heaven to have seen a pod of steelhead. It needs a good shot of rain to move them up. Probably should have went after summerruns above palmer/headworks? :0