The commission may conduct tests and take samples of air and water contaminants, fuel, process materials, or other materials which affect or may affect emission or discharge of air or water pollution from any source and copy data maintained by the owner or operator of the premises relative to air or water pollution. Upon request of the commission, the person responsible for the source to be tested shall provide necessary holes in stacks, ducts, or pipes and such other safe and proper sampling and testing facilities, exclusive of instruments and sensing devices, as may be necessary for proper determination of the emission or discharge of air or water pollution. If an authorized employee of the commission, during the course of an inspection, obtains a sample of air or water contaminant, fuel, process material, or other material he shall give the owner, or operator of the equipment or fuel facility a receipt for the sample obtained.History: Env. Qual. Comm. Regs., eff prior to 1975, § 4.02.