Over the last few months after recording considerable increase, the groundwater level in Chennai Metro City has started to come down, with 10 of the 15 Corporation zones recording a dip!
According to the Data furnished by the Chennai Metropolitan Water Supply and Sewerage Board (Metro Water) (CMWSSB), the groundwater table in city in August decreased by 0.16 m when compared with the level in July.
Statistics:
- In July, the average groundwater level was at 5.22 m from the surface, which went down to 5.38 m in August. It was 6.68 m in June, which was more than a metre lower than the water level in August.
- Among the 15 zones in the city, only Anna Nagar (0.11 m), Valasaravakkam (0.07 m), Alandur (0.06 m), Adyar (0.17 m) and Sholinganallur (0.32 m) has recorded an increase in the water level.
- The level in Kodambakkam zone went deeper by 0.45 m when compared to the July number. Incidentally, the zone had registered the biggest improvement of 2.57 m in July. The level in July was 4.95 m, which went down to 5.40 m in August.
- Ambattur zone that hosts a large number of industries has the worst groundwater level at 7.42 meters followed by Royapuram (6.79 meters).
Interaction
When interacting with a CMWSSB official, he said the groundwater level had improved in July due to unexpected rain. “Now, the levels are coming down as there was no significant rainfall in August and an increase in usage of groundwater by the residents.”
Storage level at Chennai Metro City’s major reservoirs
Meanwhile, the storage level at Chembarambakkam, Red Hills, Cholavaram and Poondi, the four lakes that supply drinking water to the city are substantially higher than what they had on the same day in 2019. On Thursday, the lakes had combined storage of 4,015 mcft as against last year’s storage of 15 mcft.