Another one bites the dust.
I met Gil when I lived in Charlottesville and he was a DC area titan (actually, his firm was in Rockville- right before moving to Beltsville, MD after 15 years). Dr. Gilbert Levin was one of the first civil engineers I ever met that actually understood water microbiology and waste treatment. (He did earn a PhD in environmental engineering from Johns Hopkins back in 1963.) He was the founder (and head) of Biospherics (eventually this metamorphosized into Spherix, Inc., during Gil’s tenure).