Building relief model…
Native — Water quality index based on Govt. Central Ground Water Board report Native — Water quality index based on Govt. Central Ground Water Board report
How each state is rated
GoodEvery sample within BIS safe limits
PoorAny one contaminant over its BIS limit
SevereCGWB-severe, with a contaminant over 15% on 100+ samples
No dataNo samples in the CGWB report
Bureau of Indian Standards limits · CGWB 2024
—
—
Water quality
—
—ppm
—ppm
with Native
Average input TDS based on the readings from Native devices in this state.
—
Nationwide · CGWB 2024

India's groundwater

—
Water Quality Index
—
Exceed one or more limits
—
Samples analysed
—
Contamination hotspots
All states · worst first