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 lakh 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. 

2

Check Dam

5,100  - 30,000 Cubic meter runoff water recharged in one year

13.

Lakshadweep

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 dugwells in the range of 0.80-3.80 m and 6-12 m in hand pumps has been observed.  

1

Percolation Tank

Rise in ground water levels by 1-4 m. in command area downstream of tank 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

3

Roof Top Rain Water Harvesting

2,480 – 14,065 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

1,200 cubic meter runoff water recharged in one year

1

Renovation of creeks & sub - creeks, Construction of Control Sluices and recharge bore wells

Quantity of fresh water impounded in 798119 cubic metres and irrigation potential is 11000 has in a 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 upto 0.32-0.70 m has been observed.

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

1

Check dams

88,000 Cubic meter runoff water recharged in one year. Water level rise - 0.65 m.

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

7

Roof Top Rain Water Harvesting

350-23033 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