Table 1.
Characteristics of failed wells studied in Araihazar
| Well ID | Latitude | Longitude | Union | Village | Installation year | Depth (m) | As (ug/L) Kit 1 |
As (ug/L) Kit 2 |
As (ug/L) ICPMS |
Depth (m) Δ salt |
Extra screens | No. joints | % clean | % glue | % drips | % oval |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 893G | 23.76321 | 90.64103 | Haizadi | Roynadi Kalagachhia | 2011 | 174 | 300 | 100 | 84.4 | - | 0 | 45 | 91 | 2 | 7 | 0 |
| 894G | 23.76340 | 90.64010 | Haizadi | Roynadi Kalagachhia | 2007 | 169 | 100 | 200 | 70.1 | - | 0 | 38 | 89 | 11 | 0 | 0 |
| 984G | 23.76276 | 90.63980 | Haizadi | Roynadi Kalagachhia | 2011 | 168 | 100 | 50 | 36.5 | - | 0 | 41 | 78 | 17 | 5 | 0 |
| 1017G | 23.75842 | 90.64135 | Haizadi | Roynadi | 2004 | 187 | 100 | 100 | 76.0 | - | 0 | 43 | 12 | 79 | 9 | 0 |
| 1371J | 23.75618 | 90.62712 | Haizadi | Sarapdi | 2007 | 140 | 500 | 300 | 192.6 | 20–120 | 0 | 31 | 77 | 13 | 10 | 0 |
| 2986G | 23.74907 | 90.69523 | Khagkanda | Lakhi Pura | 2004 | 109 | 100 | 50 | 26.4 | 40–100 | 1 | 26 | 65 | 27 | 4 | 4 |
| 1036E | 23.76947 | 90.60282 | Brahmandi | Laskardi | 2009 | 110 | 200 | 200 | 208.9 | 44–55 | 3 | 23 | 39 | 48 | 4 | 9 |
| 559I | 23.78800 | 90.67921 | Fathepur | Bagadi | 2000 | 188 | 100 | 100 | 51.0 | 70–90 | 0 | 45 | 44 | 31 | 24 | 0 |
| 3747G | 23.74741 | 90.68827 | Khagkanda | Sumbhupura | 2011 | 185 | 100 | 50 | 18.2 | 60–90 | 0 | 43 | 12 | 86 | 2 | 0 |