Municipal and plant officials continue to look for the cause of the May 16 collapse of a 100-ft wall at the wastewater treatment plant serving Binghamton and Johnson City, N.Y. The event triggered a 580,000-gal spill of partially treated wastewater into a local creek and the nearby Susquehanna River.
Four of the plants 20 filtration cells were destroyed when the 15-ft tall, 18-in thick wall fell.