Born too soon Soon after Cordero’s return, two engineers appeared at his door. One, Ingrid Y. Padilla, was a slight, wry hydrologist from a west-coast campus of the university; the other, Akram N. Alshawabkeh, an expert in groundwater remediation, came from Northeastern University. They told Cordero that Puerto Rico has one of the nation’s highest concentrations of Superfund […]