There are limited feasible or practicable short-term alternatives available to continuing the present treatment and discharge processes. The most feasible short-term option (which includes the membrane upgrade of the wastewater treatment plant) would take up to three years to be designed, constructed and commissioned. This is a longer period than we anticipate for the identification and confirmation of the long-term option, which may not require a membrane upgrade as part of the overall solution. A membrane upgrade remains as part of the options we are looking at for the long-term solution.