The Water Resources Department will undertake a detailed groundwater mapping project using T-Tem, a Danish technology, on a pilot basis.
The transient electromagnetic system would investigate the shallow aquifer and its groundwater recharge potential. The geological mapping method is capable of imaging the sub-surface at a high resolution and generating 3D images. The technology would be used for investigating the aquifer in a chosen site, as a pilot project.
This was among the announcements made in the Assembly on Wednesday. Minister Duraimurugan said 400 water quality test kits would be procured at a cost of ₹1.40 crore to check water quality and pollution levels. This would help in on-site testing of samples taken from waterbodies.
A detailed project report would be prepared to supply reclaimed water from the Ukkadam sewage treatment plant, Coimbatore, for irrigation purpose in Sulur and Madukkarai. The pilot project would aid in conserving freshwater resources.
Alternative materials like coir and geotextiles would be used for strengthening the infrastructure in Theni and Thanjavur districts. While coir would be used to prevent soil erosion in Manjalar dam in Theni district at a cost of ₹2.20 crore, a sub-surface dyke would be constructed across the Cauvery in Echankudi in Thanjavur district with geotextiles.
New check dams will come up at 10 places in eight districts, including Coimbatore, Tiruchi and Vellore, at a cost of ₹70.95 crore. Projects worth ₹88 crore would be taken up to build dykes for groundwater recharge.
The Minister also made announcements on projects worth ₹200.22 crore for the repair, renovation and restoration of 200 waterbodies in 10 districts under the Pradhan Mantri Krishi Sinchayee Yojana, and the improvement of 50 small irrigation tanks in Sivaganga and Tiruppur districts at a cost of ₹33.43 crore.
