The Indiana Water Pollution Council has delayed voting on water rules brought by the state's chief environmental agency because of a letter received from two state legislators who sponsored the Ground Water Protection Act of 1989. State Representative Mark Kruzan and state Senator Vi Simpson, who wrote the Ground Water Protection Act, sent a list of questions to the Indiana Department of Environmental Management. They are concerned the proposed rule may allow coal mines to contaminate ground water, impacting properties beyond their boundaries. Representative Kruzan and Senator Simpson asked to delay final action on the proposed rule until questions and concerns can be answered.