The undertakers shall, at all times after the expiration of six months from the date on which the special Act was passed or made, keep at their principal office a copy thereof printed by the Queen’s printer, F1or the Queen’s Printer for Scotland and shall also within the said six months deposit such a copy with the sheriff clerk of every sheriff court district and with the F2local authority for every area within which they supply, or propose to supply, water or have or propose to construct any waterworks.