I first read about it over at Capital Beat; the Winston-Salem Journal reports:

The state’s water quality division is revoking a key certificate for Alcoa Power Generating Inc., saying the company shielded information from regulators who were reviewing the certificate application.

This “intentional omission” came to light during a continuing licensing hearing, when company e-mails were entered into evidence, according to a statement this afternoon from the N.C. Division of Water Quality.

“The company intentionally withheld information on the project’s ability to meet the state’s water quality standards for dissolved oxygen,” the division said in the statement.

Prepare for a lengthy court battle.