1998 - Abandoned Mine Land Inventory System available to the public on the Internet, and $5.6 million available for Clean Stream projects.

1999 - Director determines "Approximate Original Contour" requirement does not apply to valley fills, and final rules on "Valid Existing Rights" published.

2000 - New Oversight Initiative on coal mine impoundment concerns in the Appalachian region issued.

2001 - Acid Mine Drainage Prediction Technical Manual distributed. The manual contains technical guidelines and methods used to predict, prior to mining, the water quality that will result from surface coal mining and reclamation operations.