In the cases provided for in 2° of article R. 1321-32, articles R. 1321-33 and R. 1321-34, the Prefect will ensure that the person responsible for the distribution of water informs the population concerned promptly and appropriately of the derogation and the conditions attached to it and ensures that the advice drawn up by the Director General of the Regional Health Agency is given to the specific population groups for whom the derogation could present a particular risk.