Who is responsible for determining Prevailing Wage rates in South Carolina and what is it based on?

In South Carolina, the federal government’s Department of Labor determines the Prevailing Wage rates. 

The prevailing wage rate is based on the hourly paid rate of puiblic works projects to workers of a certain type of work, trade or classification.  The rate is also based on workers who are located within the nearest labor market area or lacality.  If for instance, there is no single rate paid to a majority, then the single (or modal) rate being paid to the GREATEST number of workers becaomes the Prevailing Wage Determination for the South Carolina project.