Wastewater Geophysics Poorly productive aquifer Groundwater quality

It is estimated that 37% of land area of the Republic of Ireland falls within this category (Dr. Robert Meehan, Pers. comm), leaving groundwater at risk of contamination where OSWTS have been inappropriately sited in these areas. As Bales et al. (1995) demonstrated, the wider impacts of OSWTS effluent on groundwater will depend on contaminant migration rates, which in turn are a function of the geological and hydrogeological properties of aquifers.