National Water Supply and Drainage Board is the only national organization in the country with the decentralized laboratory system which is available throughout the country. There are 36 Laboratories included into this system. The Water Quality Monitoring System has covered all the parameters in SLS 614: 2013 for portable water, Gazette in 2019 for surface water and Gazette tolerance limits 2008 for wastewater. Users are provided updated water quality data online by this water quality Monitoring System.
