A. The Department of Environmental Quality shall accept reports or laboratory analyses performed by accredited laboratories but may reject analyses that were not performed in compliance with the Department's rules or the laboratory's accreditation. The Department may require that reports or laboratory analyses which are submitted pursuant to this Code, rules promulgated or permits and orders issued pursuant thereto shall be performed by laboratories accredited by the Department if the submission of reports or laboratory analyses performed by an accredited laboratory is specifically required or authorized by this Code, rules promulgated thereto or federal law or federal regulations.

B. The Department shall accept laboratory reports and analyses prepared and performed by Department-certified laboratory operators for operational testing of municipal wastewater treatment systems and water supply systems provided that the analyses were performed in compliance with the Department's rules or the terms of the laboratory operator's certification.

C. Acceptance of such reports or analyses shall not preclude the Department from declining for cause to rely on such results or from requiring additional laboratory analyses or reports from the person submitting such analyses or reports.