Suramula
The Suramula () is a river in Khashuri Municipality, and a right tributary of the Ptsa, itself a tributary of the Kura. It starts at the left slope of Likhi Range, above sea level, and runs a length of . The basin is . This river is nourished by rain, snow, and groundwater. It is known to flood in the spring and in autumn, but it lacks water in winter. This river is polluted with substances like nitrite nitrogen. It once was polluted with excessive amounts of iron, although this problem has since been fixed.