O.C.G.A. § 12-5-26: Entry on premises to investigate and inspect conditions and operating records; protection of trade secrets and confidential information.

Any duly appointed agent of the division may enter private or public property at reasonable times to inspect or investigate conditions relating to pollution and to inspect the operating records of any sewage system, waste treatment work, or sewage disposal plant, provided that no person shall be required to disclose any secret formula, process, or methods used in any manufacturing operations carried on by him or under his direction or any confidential information concerning business activities carried on by him or under his supervision.