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Annual Groundwater Quality Report 2025
January 17 , 2026
4 hrs 0 min
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- The Central Ground Water Board (CGWB) has released the Annual Groundwater Quality Report 2025.
- 71.7% of India’s groundwater meets BIS (Bureau of Indian Standards) limits, while 28.3% of samples exceed one or more quality parameters.
- Nitrate is the most widespread pollutant, with about 20% of samples crossing the safe limit of 45 mg/L, mainly due to fertilizers, sewage and animal waste.
- Uranium contamination above the safe limit of 30 ppb (parts per billion) was found in 6.71% (pre-monsoon) and 7.91% (post-monsoon) samples, with Punjab reporting the highest levels.
- Fluoride contamination (8.05% samples) is mainly geogenic (naturally occurring).
- Rajasthan recorded the highest fluoride levels, while Delhi showed high lead contamination.
- About 94.30% of groundwater samples are excellent for irrigation use, showing overall suitability for agriculture.
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