As groundwater flows through the ground, metals such as iron and manganese are dissolved and may later be found in high concentrations in the water. Industrial discharges, urban activities, agriculture, ground-water pumpage, and disposal of waste all can affect ground-water quality.
Cost-benefit analysis is a relatively straightforward tool for deciding whether to pursue a project. To use the tool, first list all the anticipated costs associated with the project, and then estimate the benefits that you'll receive from it.
1 Cost-benefit analysis should normally be undertaken for any project which involves policy development, capital expenditure, use of assets or setting of standards. 2  Depending on the nature of the issue, it will sometimes be very quick and easy.