According to Benjamin H. Grumbles, EPA's assistant administrator for Water, "The public must have confidence in the safety of their tap water, which is, ounce-for-ounce, one of America's greatest and most affordable assets. EPA's targeted improvements will clarify requirements for utilities, and provide more timely and useful information for the public."
A copy of the rule and more information on lead in drinking water can be found here: http://www.epa.gov/safewater/lcrmr/index.html