UKTAG first published guidance on the classification of ecological potential in 2008. This guidance included lists of mitigation measures relevant to the range of adverse impacts on the water environment that the different water uses can have. For impoundments for the purposes of water storage and supply, 12 mitigation measures were identified. These recommendations supersede the existing guidance on assessing whether a measure is in place and adequate for 3 of these 12 mitigation measures, and have been determined following consultation and a stakeholder workshop throughout 2013.
A technical report on proposals for a first set of standards and conditions was published for review in 2006. The revised report was issued in August 2006 in the form of a recommendation to the UK governments. The UKTAG updated the report in November 2007.