AECL issued the construction deal in 1969 for the initial BHWP device (BHWP A). Commissioning of BHWP A was done by Ontario Hydro from 1971 by 1973, Using the plant moving into service on 28 June 1973, and design creation capacity getting achieved in April 1974. A result of the accomplishment of BHWP A and the large quantity of major drinking water