Abstract
An evaluation of Environmental Stewardship had recently been carried out by CSL. As part of this project, a modelling process was developed which attempted to estimate the impact of ELS on a range of indicators. The process adopted depended on expert scores for the effectiveness of each option, and estimates of the optimal area required to achieve targets. However, the process was not as successful as intended for resource protection because the impact of many options on water quality depends on their location. This proposal therefore aims to develop an alternative method of estimating the impact of ELS uptake on water quality.