CGWB to digitise groundwater monitoring system; identifies nearly 33% assessment units in the State as over-exploited

The Central Ground Water Board (CGWB), southbound eastbound coastal region, has projected to instal further sensors and digitise its groundwater monitoring strategy successful Tamil Nadu implicit the adjacent 2 years.

In 2024-25, the CGWB identified 395 of the full 1,202 appraisal units successful the State arsenic over-exploited blocks wherever groundwater extraction exceeds yearly groundwater recharge. Assessment units successful Chennai, Vellore, Salem, Krishnagiri, Cuddalore, Tiruchi and Namakkal person been identified arsenic over-exploited zones. While 482 units person been assessed arsenic harmless groundwater zones, 34, including Vedaranyam and Nagapattinam, arsenic units with saline groundwater.

In a stakeholders’ gathering connected dissemination of groundwater information and groundwater absorption program held successful the metropolis connected Friday, officials of CGWB discussed details connected unfastened entree to groundwater information being generated and however the database tin beryllium utilized to hole groundwater regulatory and recharge plans.

According to CGWB, Tamil Nadu’s signifier of groundwater extraction stands astatine 73.50%, indicating that astir three-fourths of the State’s yearly extractable groundwater is already being used.

M. Sivakumar, Regional Director, CGWB, southbound eastbound coastal region, said sensors to grounds h2o level and prime person been installed successful 1,000 monitoring wells truthful far. “We get six-hourly groundwater information from these wells. We program to adhd sensors successful 1,500 much monitoring wells to get real-time data,” helium said.

On the nonsubjective of the stakeholders’ meeting, helium said the Board falling nether the Ministry of Jal Shakti wanted to stock groundwater information connected over-exploited and captious blocks successful the State that request projects for amended management. Representatives from assorted authorities agencies, voluntary organisations and backstage assemblage were enlightened astir the information disposable done the information portal of www.gwdata.cgwb.gov.in. There are plans to clasp meetings for territory collectors successful the State.