RESERVING A CERTAIN PARCEL OF LAND OF THE PUBLIC DOMAIN AS OFFICE SITE FOR THE DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES (DENR), REGIONAL OFFICE NO. 1,   SITUATED IN BARANGAY SEVILLA, CITY OF SAN FERNANDO, PROVINCE OF LA UNION, ISLAND OF LUZON, AND GRANTING OWNERSHIP THEREOF IN FAVOR OF THE REPUBLIC OF THE PHILIPPINES – DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES (RP-DENR)