Firefighters with the 27th Special Operations Civil Engineer Squadron test hose water pressure before an exercise Aug. 14, 2015, at Cannon Air Force Base, N.M. New Mexico environment officials previously cited the base for a spill of wastewater containing firefighting foam with PFAS which soaked into the aquifer after a retaining pond leaked. (U.S. Air Force photo/Staff Sgt. Alex Mercer)Discussions are progressing on how New Mexico environment o…