City flooded with poor quality sand
An anonymous investigation revealed that illegal units have mushroomed across the city where poor quality sand is treated and marketed as river sand. Experts say such poor quality sand will affect the longevity and durability of structures built using it.
The illegal sand yards that were functioning on the fringes of the city have now shifted to Chennai. There are many such units at Perambur, Korattur and New Avadi Road. Earthmovers are used at these units to mix poor quality sand sourced from river beds on the outskirts of Chennai and from Andhra Pradesh, and, more worryingly, from land parcels close to the sea that typically have high salt content.
This is passed off as genuine river sand, which incidentally is mined only in a few government-run quarries. In fact, just 600 trucks of river sand a week is supplied by these quarries to the whole state.