Dunno if it's relevant to us, but fly ash is generally not allowed on projects where concrete is left exposed because it's a known "carcinogen." Take from that what you will.
Obama EPA said it's cool!
New EPA Rule Regulates Disposal of Fly Ash As Nonhazardous; Allows Beneficial Use to Continue
December 23, 2014
https://www.agc.org/news/2014/12/23/new-epa-rule-regulates-disposal-fly-ash-nonhazardous-allows-beneficial-use-continue
Bonus: check out the Mason-esque logo for the AGC.
JFK?
Looking…he had a lot of dogs, but none quite like Benji, it seems.
https://parade.com/688208/ccopelan/photos-never-before-seen-pictures-of-jfks-pets/