PHOENIX - Phoenix will begin testing for trace amounts of pharmaceuticals in its drinking water supply in the wake of an Associated Press investigation that found contamination in many of the nation's major cities.
City officials had said they would wait for the federal Environmental Protection Agency to develop standards for testing for prescription and over-the-counter drugs in the nation's waters.
But Mayor Phil Gordon told The Arizona Republic in a story posted on the paper's Web site Thursday that the city will go ahead immediately.
The AP reported drug residues were found in Lake Mead, a source of some of the city's water.
