1.   McBee conceded that the commission does not have a study that shows specific evidence of water-quality degradation as a result of development in the contributing zone.

2.   Officials at the Texas Natural Resource Conservation Commission say they developed the proposal in response to calls for limiting development over the contributing zone.

3.   That decision has drawn heat from environmentalists who want the entire contributing zone regulated.

4.   The proposal leaves out thousands of acres of the contributing zone in Lampasas, Burnet and Mills counties and more counties west of San Antonio.