Upon the application for a license to maintain a swimming pool, the department of health shall, within thirty (30) days from the time that the application is made, grant the application and issue a license to maintain a swimming pool if the department shall be satisfied that its rules and regulations relating to the condition, maintenance, and water of a swimming pool are complied with by the applicant, and the condition and method of maintaining the swimming pool will not be detrimental to the health and safety of its users, otherwise the department shall decline to issue a license until it is satisfied with the condition, maintenance, and water of the swimming pool. In case the department shall decline to issue a license, it shall, upon the written request of the applicant, make a further inspection of the swimming pool maintained by the applicant and upon the applicant’s written request shall also make a further analysis of the water of the swimming pool. If after further inspection and further analysis the department shall determine that the applicant is still not entitled to a license, it shall, before finally refusing to issue the license, give the applicant an opportunity to be heard in support of the application.