[Aria]

I thought I'd read it somewhere in one of the sourcebooks but a flick back through Seattle 2072 didn't have it (and that seemed the likeliest place)... anyone 'know' how thick the ash is meant to be across parts of Puyallup?  It says 'tons of ash' but is that a meter, 5 meters?  I get that it will vary according to distance from Mt St Helens etc but as I said, I thought there was a passage somewhere...

Will ask on Reddit too 

[FastJack]

There's a passage in Emerald City that the Orting Ash Wastes are buried by three meters of ash slurry, if that's what you're looking for.

[Aria]

Ah hah!  Perfect, thank you, knew I'd seen something somewhere!!