...distribution of water in the saiù cities of Panama and Colon, which, in the discretion of the United States may be necessary and convenient for the construction,...operation, sanitation and protection of the said Canal and railroad. All such works of sanitation, collection and disposition of sewage and distribution of...

...further grants to the nited States in perpetuity the use, occupation and control of any other lands id waters outside of the zone above described which may be necessary and invenient for the construction, maintenance, operation, sanitation and protecon of the said Canal or...

...protection of said Canal,” but further “the use, occupation and control of any other lands and waters outside of the zone above described which may be necessary and convenient” to accomplish those same tasks. In other words, the US government could effectively assume control...

...further grants to the United States in perpetuity the use, occupation, and control of any other lands and waters outside of the zone above described which may...and convenient for the construction, maintenance, sanitation, and protection of the said canal or of any auxiliary canals or other works necessary and...