An officer or individual designated as an inspector of the work to be performed under a contract described in
section 3701 of this title, or to aid in the enforcement or fulfillment of the contract, on observation or after investigation immediately shall report to the proper officer of the Federal Government, a territory of the United States, or the District of Columbia all violations of this chapter occurring in the performance of the work, together with the name of each laborer or mechanic who was required or permitted to work in violation of this chapter and the day the violation occurred.