Any water company which mortgages or gives a security interest in class I or II land or any essential part of its plant equipment or other property necessary or useful in the performance of its duty to the public shall immediately notify the Commissioner of Public Health in writing that such mortgage or security interest has been given and shall provide the commissioner with the name and address of the mortgagee or the holder of the security interest, a description of the land, equipment or property affected, and any other information that the commissioner may require. Any water company having land, equipment or property subject to a mortgage or security interest on July 1, 1995, shall, by September 1, 1995, notify the commissioner in writing of the name and address of the holder of that mortgage or security interest and shall provide a description of the land, equipment or property affected and any other information the commissioner may require.