Every person the Department has reason to believe is generating, storing, transporting, disposing of, or treating waste shall, on request of the Department, furnish such plans, specifications, and information as the Department may require in the discharge of its duties under this chapter. Trade secret information included within any plans, specifications, or information submitted pursuant to this section shall be excluded from the provisions of the Virginia Freedom of Information Act as provided in subdivision 26 of § 2.2-3705.6. At all times, the Department may disclose such trade secret information to the appropriate officials of the Environmental Protection Agency pursuant to the requirements of the federal Solid Waste Disposal Act, 42 U.S.C. § 6901 et seq., or as otherwise required by law.