36 States Face Perchlorate Contamination (AP)

AP - Like dozens of other towns nationwide, this working-class suburb is facing an emerging threat of uncertain dimensions — a chemical used in rocket fuel and defense manufacturing that has befouled nearly half its drinking water supply. Concern spread along with the underground plume of water that carries the chemical from barren land that once housed World War II munitions, Cold War weapons-makers and, now, fireworks warehouses and a dump.

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