Survey
Map the pond's full original area, its inlets and its catchment, and record encroachments and sewage outfalls.
Ponds and lakes in Upper Subansiri
31ponds, out of 31 water bodies
The 1st Census of Water Bodies counted 31 ponds, tanks, lakes and other water bodies in Upper Subansiri district. 0 of them (0%) were not in use and 0 had been encroached upon. Upper Subansiri has the 4th most ponds of the 7 districts in Arunachal Pradesh the census counted.
Every water body the census counted in Upper Subansiri
0 of 31 water bodies (0%) are not in use: dried up, silted, built over or polluted. Bringing them back is one of the cheapest ways to recharge groundwater.
Loading the map of water bodies in Upper Subansiri…
- Ponds31
Source: 1st Census of Water Bodies, Ministry of Jal Shakti (counted in 2018-19, published 2023).
Why Upper Subansiri's ponds matter for its groundwater
0.2%Safe
Upper Subansiri pumps out 0.2% of the groundwater that can safely be taken out each year (2023, Central Ground Water Board), which the board rates safe. Working ponds are a large part of what keeps it there, by letting rain soak back into the ground.
Bringing a pond in Upper Subansiri back
Most ponds that are not in use can be revived. The work is the same in a village or a city sector:
Desilt
Dig out the silt that has sealed the bed, so water soaks into the ground again instead of evaporating.
Reconnect
Clear and line the channels that bring rain in, with a silt trap before the pond; divert sewage away from it.
Recharge
Add recharge shafts or wells in the bed where the soil is tight, so water reaches the aquifer faster.
Protect
Fence or plant the banks, mark the boundary and hand upkeep to the panchayat or residents' body.
Frequently asked questions
How many ponds are there in Upper Subansiri?
The 1st Census of Water Bodies (Ministry of Jal Shakti, counted in 2018-19, published 2023) counted 31 ponds in Upper Subansiri district, out of 31 water bodies in all. That is the 4th most ponds of 7 districts in Arunachal Pradesh counted by the census.
How many lakes are there in Upper Subansiri?
The 1st Census of Water Bodies recorded no lakes or reservoirs in Upper Subansiri district; its 31 water bodies are mostly ponds.
How many water bodies in Upper Subansiri are not in use?
0 of the 31 water bodies (0%) were not in use when counted: dried up, silted, cut off from their catchment, polluted or built over. 0 had been encroached upon.
How do ponds help groundwater in Upper Subansiri?
A working pond holds rain long enough for it to soak into the ground and refill wells and borewells nearby. A silted or encroached pond sends that rain down the drain instead. Desilting, reopening inlets and adding recharge shafts in the pond bed are among the cheapest ways to recharge groundwater.
Is groundwater in Upper Subansiri running out?
In the 2023 Central Ground Water Board assessment, Upper Subansiri district pumped out 0% of the groundwater that can safely be taken out each year ("safe").
Ponds in other districts of Arunachal Pradesh
Districts ranked by number of ponds in the 1st Census of Water Bodies.