Groundwater contamination in India exhibits a distinct spatial pattern driven by both geogenic and anthropogenic factors. Analyse the spatial variation in groundwater contamination across India and evaluate why this has remained a governance challenge despite being a public health emergency.

Groundwater contamination in India is not merely a water-quality issue but a manifestation of the interaction between geological conditions, developmental activities and weak environmental governance.

Spatial Variation in Groundwater Contamination Contaminant

Major Regions

Primary Cause

Arsenic

Gangetic Plains (West Bengal, Natural release from alluvial

Bihar, Uttar Pradesh, Assam) sediments under reducing of fluoride- conditions. Fluoride

Rajasthan, Gujarat, Telangana, Weathering

Andhra

Pradesh, Karnataka, bearing rocks aggravated by

Tamil Nadu

Nitrate over-extraction.

Punjab, Haryana, Western Uttar Excessive

Pradesh, Maharashtra fertiliser use, sewage leakage and livestock waste. Heavy Industrial Metals Maharashtra, Uranium belts of Gujarat, Mining, Tamil industries and Nadu, improper hazardous waste Jharkhand disposal.

Punjab, Haryana, Rajasthan

Naturally occurring uraniumbearing formations.

II. Why does it remain a governance challenge?

• Invisible crisis: Groundwater contamination is often detected only after health impacts become evident.
• Fragmented governance: Responsibilities are split among Jal Shakti

Ministry, CPCB, CGWB, State Groundwater Authorities and Urban Local Bodies, leading to weak coordination.

• Poor monitoring: Large parts of rural India lack regular groundwater quality surveillance despite programmes such as Jal Jeevan Mission.
• Weak pollution control: Inadequate enforcement of industrial effluent norms and groundwater extraction regulations.
• Agricultural practices: Fertiliser-intensive farming continues due to subsidy structures and limited promotion of sustainable agriculture.
• Over-extraction: Falling groundwater tables mobilise naturally occurring contaminants such as fluoride and arsenic.

This can lead to several diseases like, Arsenic contamination causes arsenicosis, Fluoride contamination leads to dental and skeletal fluorosis, Nitrate contamination is associated with Blue Baby Syndrome) and Lead contamination causes neurological disorders, developmental delays in children and anaemia, while mercury contamination results in neurological impairment and kidney damage.

Therefore, addressing groundwater contamination requires a shift from extraction-centric water management to aquifer-based governance, as recommended by the Mihir Shah Committee, through integrated regulation, scientific monitoring and community-led aquifer management.