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ARSENIC CONTAMINATION IN GROUNDWATER

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ARSENIC CONTAMINATION IN GROUNDWATER

The innovative method for construction of Arsenic-free wells using cement-sealing technology developed by the Central Ground Water Board (CGWB) has been extensively shared by CGWB with state line departments of various Arsenic affected states for replication and scaling up. Necessary technical support for execution is also being provided wherever requested for. Borrowing from the successful implementation of this Model, UP Jal Nigam, the department responsible for drinking water supply in the state, is extensively using cement Sealing Technique. It is informed that the State Govt. has constructed 204 wells using cement sealing technology in 9 Districts.

CGWB is also taking proactive steps to further promote this technique, especially in Arsenic affected areas, by sharing the design and methodology with various government officials, NGOs and local communities during its various training and capacity building sessions and public interaction programmes.

Central Ground Water Board (CGWB) generates ground water quality data of the entire country on a regional scale as part of its ground water quality monitoring program and various scientific studies. Varying number of samples are tested for different water quality parameters and degree of contamination varies depending upon source region and parameter being tested. Overall, the data on ground water quality indicates that the ground water in the country remains largely potable. However, localized occurrence of certain contaminants, including Arsenic, Fluoride, Heavy metals, Nitrates etc, beyond the prescribed limits for drinking water use has been reported in some isolated pockets of some States/UTs.

Further, it may be noted that Water is a state subject and the responsibility of taking initiatives to mitigate ground water contamination and to provide safe drinking water to citizens lies primarily with the state governments. Nonetheless, to complement the efforts of the state governments, several steps have been taken by the Central Government to address these issues across the country. Some of the important ones are mentioned below: –

This information was provided by THE MINISTER OF STATE FOR TEXTILES SHRI RAJ BHUSHAN CHOUDHARY in a written reply to a question in Rajya Sabha today.       

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  1. The ground water quality data generated by CGWB is regularly disseminated through Annual Reports, Half-yearly Bulletins and Fortnightly Alerts for quick action by the stakeholders.
  2. In order to enhance monitoring efficiency, a new Standard Operating Procedure (SoP) for Groundwater Quality Monitoring has been adopted by CGWB, which stipulates more frequent and denser sampling, particularly in vulnerable areas, to ensure a more comprehensive assessment of groundwater quality.
  3. Government of India is implementing Jal Jeevan Mission (JJM) – Har Ghar Jal, in partnership with states, for providing contamination free potable tap water to every rural household of the country in adequate quantity, of prescribed quality and on regular & long-term basis. Following measures have been taken under JJM to facilitate action on water quality aspects at state level:-