- Ground Water Quality Status by Location in Arwal District of Bihar (2022) - Part I
- Ground Water Quality Status by Location in Arwal District of Bihar (2022) - Part II
- Ground Water Quality Status by Location in Arwal District of Bihar (2021) - Part I
- Ground Water Quality Status by Location in Arwal District of Bihar (2021) - Part II
- Ground Water Quality Status by Location in Arwal District of Bihar (2020) - Part I
- Ground Water Quality Status by Location in Arwal District of Bihar (2020) - Part II
- Location having Ground Water with Nitrate > 45 mg/litre in Arwal District of Bihar (As on March 2015)