What question do you have about waste disposal? Primarily the pigments
in inks are inert materials (non-haz), unless formulated with heavy
metals to produce specific colors or metallic inks.
I have also read reports that vegetable based inks emit lower VOC's than
petroleum based. But, I thought the remaining environmental problem was
the pigment, especially in black ink. Is waste ink disposal in question
for Boulder or just emissions?