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Work Done Storage No. of Area No. of Avg. Avg. Depth Cap.(MCM) wells benefited Farmers Depth of of water in benefited (Ha.) benefited water in wells (m) wells (m) Before After Water Diversion by Underground Pipeline 4.67 180 900 180 14.63 2.44 The above arrangement also does not require any revenue expenditure on a perennial basis, except the checking and cleaning of the pipeline for any blockage. The schematic diagram of the arrangement and the photograph of the BARDA BHANDARA are given below. This project created an example of how the joint efforts of the community and NGO can make the positive difference. The adjoining farmers are now cultivating Rabi crops, which was distant dream for them previously. 02. Inter-linking of waterbodies through link water channels : Taking a cue from the traditional wisdom and the much hyped “inter-linking of rivers” project, ACF initiated an innovative project called “interlinking of local rivers through open canals.” The basic concept behind the scheme is diverting water from surplus area to water deficit/scarce area. In Kodinar taluka, a lot of water from the rivers flows every year into the sea. These rivers drain the local watershed area and most of the water is lost to the sea. ACF studied the problem and a plan was conceptualized and formulated to divert water from excess zone to deficit zones and thereby minimize the outflow to the sea. Due care was taken in the scheme to include the network of existing water harvesting structures and water bodies like tidal regulators, ponds etc. At the same time, it was planned to help the water to remain within the area for a much longer period than the past for facilitating maximum recharge of the local aquifers. Studying the watershed dynamics and excess capacity in the existing rivers during monsoons, the potential sinks (rivulets, ponds, percolation tanks etc.) and the shortest possible route to these sinks were identified with the help of villagers by ACF. The direction and route the overflowing water 420 acquires was taken up for inter-linking with the water bodies. The local know how was utilized to the maximum extent to ensure that the local farmers benefit maximum from the proposed network and least amount of water is lost through run-off. The following steps have been undertaken for interlinking: � Inter-linking of existing tidal regulators through pipelines. � Construction of radial canals from existing tidal regulators. � Construction of canals from river to village ponds. � Deepening of ponds and rivers to increase the water holding capacity. � Building of check dams, waste-weirs or percolation tanks to increase the water recharging capacity in the watershed. � Linking up of water bodies like percolation tanks and ponds by constructing link water channels. Case of village Mitiaz, Devli, Kadodara, Damli and Pipli The above inter-linking project was started in 1999-2000 involving above five adjacent villages to benefit from the excess water of river Goma. The village ponds in all these five villages were first deepened to increase the water holding capacity. An inter-linking canal was simultaneously constructed to connect these ponds. During monsoon, the Goma stream over flew and the water got collected in the Mitiaz pond. After the water level in this pond crossed the stipulated level, it automatically got diverted to the downstream village ponds one by one. The table below gives the details of the work done and their impacts:
Work Done Storage No. of Area No. of Avg. Depth Avg. Depth Cap. wells benefited Farmers of water in of water in (MCM)# benefited (Ha.) $ benefited wells (m) wells (m) Before After River widening & Pond deepening Pipli 0.06 40 140 40 12.20 6.70 Percolation Tank Mitiaz 0.07 132 462 121 16.75 2.40 Well Recharging Mitiaz Percolation Tank & — 20 64 20 8.80 2.75 Waste-weir Mitiaz 0.06 30 105 25 9.75 3.65 Percolation Tank Kadodara 0.06 18 63 18 11.60 3.35 Percolation Tank Damli 0.11 35 122 28 12.80 1.50 Checkdam Renovation Pipli 0.01 32 93 32 9.75 6.10 Percolation Tank Pipli 0.05 32 112 32 10.35 5.50 TOTAL 0.42 339 1161 316 # The figures represent the area benefited and not the increase of area under irrigation. $ The figures represent the storage capacity created. However, ground water recharge is more because of multiple filling of the structures, which further improves the water quality. During the year 2000-01 and 2002-03, deepening and widening of river Goma was undertaken in village Pipli. After the completion of the project, the salinity in the area has reduced, the ground water level has come up and the farmers benefit from three crops a year. Also due to reduction in the salinity, the farmers now require less quantity of seeds for sowing as compared with salinity-affected scenario. Panch Piplwa – Jantrakhadi Radial Canal The Government had constructed a tidal regulator near Panch Pipalwa village to act as a barrier between the agricultural land and salinity. During the good monsoon, excess water used to flow to the sea. To utilize this excess water, a 1.50 kms. long link canal was excavated through ACF in the year 2002 from Panch Pipalwa bhandara to Jantrakhadi village. The ponds at the village Pipalwa were also deepened in the year 2000-01and 2002-03. The benefits of the project are illustrated in table below : Work Done Storage No. of Area No. of Avg. Depth Avg. Depth Cap. wells benefited Farmers of water in of water in (MCM)# benefited (Ha.) $ benefited wells (m) wells (m) Before After Reverse Water Channel 0.05 30 105 30 8.84 4.27 Interlinking of Tidal regulators and Bhandaras (Water Bodice) Government of Gujarat has constructed Tidal Regulators and Bhandaras on fringe of coastline for preventing salinity ingress as well as create a fresh water buffer and fresh-saline water interface. Considering the positive impact of the interlinking of ponds described above, ACF planned and implemented a similar project to interlink three major rivers of Kodinar region by constructing spreading channel, parallel to seacoast. The details of the project are given below : 421
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National Seminar on Rainwater Harve
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once subsoil water starts draining
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The plantation process starts with
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DOLASANE , SANGAMNER RANGE I, SANGA
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Table 1. Present land use of waters
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the determination of specification
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Hydrological Parameters (mm) 140 12
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Drainage Engineering, 129(3): 184-1
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March to July, 2004 in the field si
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mm in 4 lph drip followed by 755.25
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Table 3 : Seasonal water use (mm) i
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pinnata) Aquatic plants are represe
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the base of the trench to assist dr
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SUDS (Sustainable Drainage Systems)
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Figure 3 : Cascade model of constru
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H eff = H R - H aq - H f ……..
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Page 45 and 46: Figure 1a. Schematic diagram of sol
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Page 51 and 52: Fig. 1 (a) - (d) : Water Level Soun
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Page 57 and 58: Geology of Area The area is a part
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Page 61 and 62: Table - 3 : Salient features of the
Page 69 and 70: eing 6.08, pH value of AB 3 and AB
Page 71 and 72: Table 2 : Tolerance limit for metal
Page 73 and 74: CASE STUDY The Salem Municipality i
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Page 77 and 78: 1. Ash Pond water recycling System
Page 79 and 80: Poly Electrolyte Dosing RAIN WATER
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Page 93 and 94: Conclusions The process of rainwate
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change waterness charge o Vakhsh m
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are following: a) Compound of const
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for subsequent use of water for irr
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years. These beels can also be conv
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ody through water conservation and
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contribute to increased fish produc
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Figure 1 : Map of Bangladesh showin
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end uses and the intentional manage
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INTRODUCTION Indian water sector is
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ut definitely they are not substitu
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having the height greater than 50m
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ain. There is no conducive evidence
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chase food self sufficiency as a go
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REPORTB OF WORLD COMMISION ON DAMS
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