- Ground Water Quality Status by Location in Thiruvananthapuram District of Kerala (2022) - Part I
- Ground Water Quality Status by Location in Thiruvananthapuram District of Kerala (2022) - Part II
- Ground Water Quality Status by Location in Thiruvananthapuram District of Kerala (2021) - Part I
- Ground Water Quality Status by Location in Thiruvananthapuram District of Kerala (2021) - Part II
- Location having Ground Water with Nitrate > 45 mg/litre in Thiruvananthapuram District of Kerala (As on March 2015)
- Location having Ground Water with Nitrate >45 mg/litre in Thiruvananthapuram District of Kerala (As on March 2008)
- Locations having Ground Water with Iron > 1.0 mg/litre in Thiruvananthapuram District of Kerala (As on March 2008)