About 

• The Namami Gange Programme was launched in 2014 for a period up to 31st March, 2021 to rejuvenate River Ganga and its tributaries. The programme was subsequently extended up to 31st March, 2026. 
• The main objective of the river rejuvenation programme is to meet the primary water quality criteria notified by the Ministry of Environment, Forest & Climate Change (MoEF&CC).
• Surface water, including that of rivers; is required to undergo necessary treatment/purification for making it potable or fit for human consumption.

Why in News?

• Under the Namami Gange Programme, Central Pollution Control Board (CPCB) is carrying out water quality assessment of the River Ganga at 97 locations in 5 main stem States through the respective State Pollution Control Boards (SPCBs). 
• As per CPCB data, the observed water quality of river Ganga indicates that Dissolved Oxygen (DO), which is an indicator of river health has been found to be within acceptable limits of notified primary bathing water quality criteria and is satisfactory to support the ecosystem of the river for almost the entire stretch of the river Ganga. 
• As a result of multi sectoral interventions, as per comparison of median data of water quality parameters viz., DO, Biochemical Oxygen Demand (BOD) and Faecal Coliforms (FC) of year 2014 and 2022; DO (Median) has improved at 33 locations; BOD at 41 locations and FC at 28 locations, respectively.

https://pib.gov.in/PressReleasePage.aspx?PRID=1896675