Ambient Water Quality Monitoring

There is no regular monitoring of surface and underground water quality except the monitoring of water intake quality conducted by the National Water Supply and Drainage Board. The CEA conducted ambient water quality monitoring projects for different river basins such as the Mahaweli River, Kandy Lake and Kelani River. Under the Pavithra Ganga Project, water quality has been monitored since 2001.

Effluent Water Quality Monitoring

In principle, effluent quality should be self monitored by discharging industries. However, significant number of industries do not monitor effluent quality of their discharging effluent. The CEA occasionally monitors effluents discharged from industries/activities which are suspected of noncompliance with effluent standards. It also checks effluent quality based on complaints received from the general public.