There is pretty good, but circumstantial, evidence that yearlong salmonids from south of the Narrows survive at piss-poor rates. I recall that yearling White River Chinook, released in Minter Creek, survived at the same rate as fingerlings released from the Muckleshoot hatchery on the White.

But, the cutthroat, which are resident, are doing well in deep SS. So it really appears to be something on the migration route. Or the cuties are eating all the salmon and steelhead.

The article of the wastewater pollutants seemed skewed to sewage treatment plant effluent. Just where do you think all the effluent from septic tanks goes, and what drugs it contains? Or, is it just the urban dwellers that take all those drugs and pass them on?