If you call the DEC they can tell you that all the permits will be approved at once. They already have a draft air permit that allows them to operate the one processor now, the newer air permit will allow them to operate several processors at one site. As Johnik has already posted:
The DEC, not surprisingly, issued a "negative" SEQR declaration, which means that "the Lead Agency [i.e., the DEC] has determined that the project will not have a significant impact on the environment."
It has a lot to do with the stack test completed by CRA that was supervised by the DEC and found that the emissions from the stack are the same as you would get from an ordinary heating furnace. No problems at all.