Ohio Rev. Code § 1513.24
After a plan of reclamation is approved by the director of natural resources, the chief of the division of mineral resources management, from any moneys appropriated for the reclamation of strip mined lands, shall proceed to carry out the plan.
With the approval of the director, the chief may carry out any such plan or any part of such plan with the employees and equipment of any division of the department of natural resources or the chief may carry out any such plan, or any part of such plan by contracting therefor, provided that the chief shall not enter into any contract, agreement, or understanding unless the same is approved by the director.
Any such contract shall be entered into by the chief, with the approval of the director, with persons who agree therein to furnish any of the materials, equipment, or labor. Each such contract shall be awarded by the chief to the lowest responsive and responsible bidder, in accordance with section 9.312 of the Revised Code, after sealed bids therefor are received, opened, and published at the time and place fixed by the chief, and notice of the time and place at which the sealed bids will be received, opened, and published, has been published by the chief at least once at least ten days before the opening of the bids in a newspaper of general circulation in the county in which the area of land to be reclaimed under the contract is located, provided that if, after so advertising for bids for the contract, no bids therefor are received by the chief at the time and place fixed for receiving them, the chief may advertise again for such bids, but the chief is not required to do so, and the chief may, if the chief considers the public interest will be best served thereby, enter into a contract for the reclamation of the land or tract without further advertisement for bids. The chief may reject any or all bids received and fix and publish again notice of the time and place at which bids for such contracts will be received, opened, and published.
The chief shall require every contractor performing reclamation work under this section to pay workers at the greater of their rate of pay, as established by contract, agreement, or prior custom or practice, or the average wage rate paid in this state for the same or similar work as determined by the chief under section 1513.02 of the Revised Code.
R.C. §1513.24