1. For purposes of developing or assisting in the development of any regulation or enforcing the provisions of this title, any person who generates, stores, treats, transports, disposes of, or otherwise handles hazardous wastes shall, upon oral or written request of any officer or employee of the department, when properly identified and duly designated by the commissioner, furnish or permit such officer or employee at all reasonable times to have access to, and to copy all records relating to such wastes. For the purposes of developing or assisting in the development of any regulation or enforcing the provisions of this title, such officers or employees are authorized after proper notification and identification:

a. To enter at reasonable times any establishment or other place maintained by any person where hazardous wastes are generated, stored, treated, or disposed of;

b. To inspect and obtain samples from any person of any such wastes and samples of any containers or labeling for such wastes.

Each such inspection shall be commenced and completed with reasonable promptness. If the officer or employee obtains any samples, prior to his leaving the premises, he shall give to the owner, operator, or agent in charge a receipt describing the sample obtained and if requested a portion of each such sample equal in volume or weight to the portion retained. If any analysis is made of such samples, a copy of the results of such analysis shall be furnished promptly to the owner, operator, or agent in charge.