COLUMBIA -- South Carolina's environmental board has agreed to hold a hearing on air quality permits for a coal-fired plant planned in rural Florence County. The decision Thursday by the Department of Health and Environmental Control's board comes a day after environmental groups criticized Santee Cooper's plan to build a 600-megawatt facility for more than $1 billion. Business groups support the plant. Santee Cooper had won initial approval from state regulators to build the plant it says it needs to meet growing electricity demand. DHEC's board decided to reconsider the permits approved by staff. The hearing will be conducted at the board's meeting next month.