S. No. |
Name of State |
No. of schemes for which impact assessment done |
Artificial Recharge Structures |
Impact assessment |
1. |
Andhra Pradesh |
6 |
Percolation Tanks
| 4500-5900 Cubic meter runoff water recharged in one year |
|
|
3 |
Check dams
| 1000-1250 Cubic meter runoff water recharged in one year |
|
|
1 |
Combination of recharge pits and lateral shafts |
370 Cubic meter runoff recharged in one year |
2 |
Arunachal Pradesh |
1 |
Roof Top Rain Water Harvesting |
7000 cubic meter runoff water harvested in one year |
3.
|
Assam |
1 |
Roof Top Rain Water Harvesting |
5500 Cubic meter runoff water harvested in one year
|
4. |
Bihar |
1 |
Roof Top Rain Water Harvesting |
4700 cubic meter runoff water recharged in one year |
5.
|
Chandigarh |
6 |
Roof Top Rain Water Harvesting |
1440-13,000 Cubic meter runoff water recharged in one year |
|
|
1 |
Rain Water Harvesting through Roof Top & Pavement catchments 34.50 lakhs cubic meter runoff water recharged in one year |
|
|
|
1 |
Recharge Trenches |
9.50 lakh cubic meter rainwater runoff recharged in one year |
6. |
Gujarat |
3 |
Rain Water Harvesting through Roof Top & Pavement catchments |
11000-45000 runoff water recharged in one year |
7. |
Haryana |
1 |
Roof Top Rain Water Harvesting |
2350 Cubic meter runoff water recharged in one year |
|
|
1 |
Combination of Recharge shafts and injection wells |
3.50 lakh cubic meter runoff water recharged in one year. Declining rate reduced from 1.175 m/yr to 0.25 m/yr. |
8. |
Himachal Pradesh |
3 |
Check dams |
1.20-21.00 lakhs cubic meter runoff water recharged in one year. |
9. |
Jammu and Kashmir |
2 |
Roof Top Rain Water Harvesting |
300-1200 Cubic meter runoff water harvested in one year |
10. |
Jharkhand |
1 |
Roof Top Rain Water Harvesting |
4500 cubic meter runoff water recharged in one year. |
11. |
Karnataka |
1 |
Combination of Percolation Tanks, Watershed Structures, Recharge wells, Roof Top Rain Water Harvesting 2-3.5 m. rise in water levels and 9-16 ha area benefited from percolation tanks 8.60 lakh cubic meter water recharged through recharge well. 3-5 m rise in ground water levels through watershed structures. 530 cubic meter recharged from Roof Top Rain Water Harvesting.
| |
12. |
Kerala |
1 |
Sub-surface Dyke |
Augmented 5000 Cubic meter of ground water in upstream side with 2 m rise in groundwater levels. |
|
|
1 |
Recharge wells |
2800 Cubic meter runoff water recharged in one year |
|
|
3 |
Percolation tanks |
2000-15000 Cubic meter runoff water recharged in one year |
|
|
1 |
Tidal regulator |
4000 Cubic meter runoff water conserved and a difference of 1.5 m was observed in upstream and downstream water level. |
|
|
1 |
Check Dam |
30,000 Cubic meter runoff water recharged in one year |
13. |
Lakshdweep |
1 |
Roof Top Rain Water Harvesting |
300 Cubic meter rainwater harvested in one year |
14. |
Madhya Pradesh |
4 |
Sub-surface Dykes |
Rise in water level in dug wells in the range of 0.80-3.80 m and 6-12 m in hand pumps have been observed. |
|
|
1 |
Percolation Tank |
Rise in ground water levels by 1-4 m. in command areas downstream of tanks has been observed. |
|
|
1 |
Roof Top Rain Water Harvesting (1000 houses) |
More than 2 lakh cubic meter runoff water recharged in one year. |
|
|
1 |
Combination of sub-surface dykes and check dam |
Rise in water levels in existing tubewells in upstream area by 0.30 m to 2.00 m has been observed. |
15. |
Maharashtra |
2 |
Roof Top Rain Water Harvesting System |
196-280 cubic meter runoff water recharged in one year |
|
|
1 |
Combination of Percolation Tanks and Check Dams. |
Benefited area About 60 to 120 ha. per Percolation Tank,
3 to 15 hectare per Check Dam
Water level rise Upto 1.5 m. |
|
|
1 |
Percolation tanks, Recharge Shaft, Dugwell Recharge.
|
Benefited area 400-500 hectare around the scheme. |
16. |
Meghalaya |
1 |
Roof Top Rain Water Harvesting |
6800 cubic meter runoff water harvested in one year |
17. |
Mizoram |
1 |
Roof Top Rain Water Harvesting |
50,000 cubic meter runoff water harvested in one year |
18. |
Nagaland |
2 |
Roof Top Rain Water Harvesting |
3700 12,800 cubic meter runoff water harvested in one year |
19. |
NCT Delhi |
2 |
Check dams |
Water levels have risen upto 2.55 m in the vicinity of Check Dams and area benefited is upto 30 hectare from each check dam in JNU & IIT.
1.30-lakh cubic meter of rainwater was recharged in one year in Kushak Nala. |
|
|
7 |
Roof Top Rain Water Harvesting |
800 5000 Cubic meter runoff water recharged in one year |
|
|
8 |
Rain water harvesting through Roof Top & Pavement catchments |
8500 20,000 cubic meter runoff water recharged in one year |
20. |
Orissa |
1 |
Rain water harvesting through Roof Top & Pavement catchments |
19,000 cubic meter runoff water recharged in one year |
21.
|
Punjab |
1 |
Roof Top Rain Water Harvesting |
500 cubic meter runoff water recharged in one year |
|
|
3 |
Recharge wells |
9 15.50 lakhs cubic meter runoff water recharged in one year. |
|
|
1 |
Trenches |
Average rise in water level to 0.32-0.70 m has been observed. |
|
|
2 |
Combination of vertical shafts, injection wells & recharge trenches |
Recharge of 1.70 lakh cubic meter runoff water caused average rise of 0.25 m. in ground water levels around the scheme area. |
|
|
1 |
Combination of recharge shafts and injection wells |
14,400 Cubic meter runoff water recharged in one year. |
22. |
Rajasthan |
Check dams
88,000 Cubic meter runoff water recharged in one year. Water level rise - 0.65 m.
1
|
|
|
12 |
Roof Top Rain Water Harvesting |
350-2800 Cubic meter runoff water recharged in one year. |
|
|
3 |
Sub-surface Barriers |
2000-11500 Cubic meter runoff water recharged in one year.
Water level rise from 0.25 to 0.60 m. |
23. |
Tamil Nadu |
1 |
Sub-surface Dyke |
39.25 ha. area benefited. |
|
|
7 |
Percolation Tanks |
10,000-2,25,000 runoff water recharged in one year. |
|
|
1 |
Roof Top Rain Water Harvesting |
3700 cubic meter runoff water recharged in one year |
24. |
Uttar Pradesh |
5 |
Roof Top Rain Water Harvesting |
350-1100 cubic meter runoff water recharged in one year |
25. |
West Bengal |
1 |
Combination of Farm Ponds, Nala Bunds, Sub-surface Dykes |
Water level rise of 0.15 m. observed. |
|
|
1 |
Sub-surface Dykes |
Rise in water levels by 0.45 m. observed |
Ministry
of Water Resources