A chemical survey of Dawesley Creek in the Brukunga Mine area has concluded that seepages from the southern mine waste dumps located alongside the creek contribute the greater proportion of pollutants (acidity, iron, aluminium, manganese, zinc, cadmium, nickel, cobalt and copper) entering it. The survey has also shown that it would not be feasible to collect the seepages entering the creek from either the northern or southern waste dumps, as the seepages are not single-point discharges but continuous seepages over a considerable length of the creek in the mine property. Hence, it will be necessary for Dawesley Creek to be diverted and the present creek bed to be used for seepage collection, then ponding downstream of the mine, prior to neutralization treatment. Analysis of floodplain soil samples from the Langhorne Creek area has tentatively shown that in recent times there have been some introduced concentrations of heavy metal contaminants which probably originated from pollution of the upstream creek waters at Brukunga. A suggested low cost treatment method of blowing quicklime into a holding pond of acid mine drainage water was shown to be ineffective in neutralizing the water's acidity (the tests showed that approximately three times the theoretical quantity of quicklime is required). The results are consistent with overseas experience which indicates that efficient agitation is necessary to keep the solids in suspension and give high lime utilisation). Soluble extract studies of minesite soils showed that no soil sample provided a suitable base for revegetation growth trials aimed at restricting water passage through the tailings dam and waste dumps (pH, conductivity and heavy metal concentrations were generally excessive). On a selected number of soil samples, liming was found to be a satisfactory method of reducing the soluble heavy metal content of the soil and bringing the pH up to the range suitable for plant growth. However, fairly heavy dose-rates would be required, especially in areas of high sulphide content. Examination of the tailings dam seepages indicated that nearly all of them emanate from the dam at its lowest level (or through the starter dam). Seepage is not confined to any one region of the dam, but is fairly continuous along its base. There does not appear to be any easy method of reducing the seepage rate apart from draining the tailings held in the dam.