Srilanka-Places.com has listed approx 2 Water treatment plants in Rajanganaya. Some of the Top rated Water treatment plants in Rajanganaya are- Rajanganaya Reservoir Dam - රාජාංගනය ජලාශ වේල්ල & Rajanganaya Reservoir Dam - රාජාංගනය ජලාශ වේල්ල.