 Introduced in 2010, the Water Efficiency Management Plan (WEMP) is an initiative introduced by PUB to aid businesses in the efficient management of water usage.It primarily serves to provide a clear breakdown of water usage, identify potential areas for improvement and draft a strategy to improve business operational processes.From 2015, bulk consumers of water, with businesses using more than 60000 cubic metres of water, will be required to install water meters to monitor water usage.