- Ground Water Quality Status by Location in Chennai District of Tamil Nadu (2022) - Part I
- Ground Water Quality Status by Location in Chennai District of Tamil Nadu (2022) - Part II
- Ground Water Quality Status by Location in Chennai District of Tamil Nadu (2021) - Part I
- Ground Water Quality Status by Location in Chennai District of Tamil Nadu (2021) - Part II
- Ground Water Quality Status by Location in Chennai District of Tamil Nadu (2020) - Part I
- Ground Water Quality Status by Location in Chennai District of Tamil Nadu (2020) - Part II
- Locations having Ground Water with Electrical Conductivity > 3000 µS/cm in Chennai District of Tamil Nadu (As on March 2015)
- Location having Ground Water with Nitrate >45 mg/litre in Chennai District of Tamil Nadu (As on March 2008)