10.2190/273D-PGGM-0K6P-B8DA 273DPGGM0K6PB8DA 3 Aquifer Ground Water Quality and Flow in the Yarmouk River Basin of Northern Jordan 265 287 20020509 20020509 20020509 20020509 273DPGGM0K6PB8DA.pdf http://baywood.metapress.com/link.asp?target=contribution&id=273DPGGM0K6PB8DA 3 A. Jawad Ali Saeb A. Al Shereideh Y. Abu Rukah Kh. Al-Qudah Yarmouk University, Jordan Nitrate was used as an indicator of ground water pollution caused by contaminated water dumped into the A1 Ekader landfill. the build-up of nitrate in the aquifers of the northeastern part of the Yarmouk Basin in Jordan is a cumulative result of Ekader sewage landfill practices. Historical monitoring data of nitrate concentrations in downgradient wells around the Ekader landfill show a gradual increase in concentration subsequent to the establishment of the landfill site in 1981. During the period 1981 to 1985, the increase in nitrate was limited. After 1985, nitrate concentrations rose dramatically, doubling more than ten times in ten years. This indicates that the previously unsaturated zone had become saturated with polluted water. N. N. Hantzsche and E. J. Finnemore, Predicting Groundwater Nitrate-Nitrogen Impacts, <i>Ground Water, 30</i>:4, pp. 250-267, 1992. Friedrich Ebert Stiftung Geothe-Institute Amman and Water Research and Study Center, University of Jordan (1991). <i>Water Pollution in Jordan: Causes and Effects. Proceedings of the 2nd Environmental Pollution Symposium</i>, p. 76, September 29, 1990. C. E. C. Consult and LG Mouchel & Partners, <i>Al-Ekader WasteWater Treatment Plant, Technical Report</i>, Amman-Jordan, 1993. A. M. Quennell, Tectonics of the Dead Sea Rift, <i>Proceedings of the 20th International Geology Conference</i>, Resumenes de las trabjos presntados. Mexico, pp. 385-403, 1959. F. Bender, <i>Geology of Jordan, Contribution to the Regional Geology of the Earth</i>, Supplementary Edition of Volume 7, Berlin-Stuttgart, 1974. Khawaj et al., <i>Water Analysis Manual</i>, Water Research and Study Center Newsletter, University of Jordan Press, 1985. O. Joudeh, <i>Water Resources of the Yarmouk River Basin</i>, Water Authority, Amman-Jordan, 1985. R. J. Otis et al., the Performance of Household Wastewater Treatment Units Under Field Conditions, <i>Proceedings of the National Home Sewage Disposal Symposium</i>, American Society of Agricultural Engineers, pp. 191-201, 1975. U. S. Environmental Protection Agency (EPA), <i>Design Manual: On-Site Waste Water Treatment and Disposal Systems</i>, Report No. EPA-625/1-77-008, 1980. Water Authority of Jordan, <i>Yarmouk Basin. Internal Technical Report</i>, Water Authority-Amman, p. 160, 1989. Water Authority of Jordan and Federal Institute for Geosciences and Natural Resources, <i>Ground Water Resources of Northern Jordan</i>, Internal Technical Report. Project No. 89.2105.8, p. 94, 1989.