نهر الزرقاء
The Zarqa River is severely polluted by industry, municipal wastewater and non-point sources. The King Talal Dam, Jordan's largest surface water reservoir, faces low water levels and pollution. However, water quality in the King Talal reservoir has improved as a result of the construction of the new As-Samra wastewater treatment plant. The National Water Strategy estimates total renewable freshwater resources at 575 million cubic metres/year plus 90 million cubic metres/year of treated wastewater, totaling 665 million cubic metres/year.