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Kshipra Sub Basin - Asian Development Bank

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Support to the National Water Mission NAPCC<br />

Appendix 3 <strong>Kshipra</strong> <strong>Sub</strong> <strong>Basin</strong><br />

4. Institutional roles<br />

129. The institutional framework includes government institutions, local authorities, private sector,<br />

civil society organizations, farmers‘ organizations and other community-based organizations. Capacity<br />

building will be needed at each of these levels either through the development of existing water<br />

management arrangements or by forming new ones. Some particular issues requiring capacity<br />

building within this institutional framework include the following:<br />

(i) As identified above there is a need to link the current approach to groundwater resource<br />

assessment with more hydrogeologically sound approaches. A way forward could be to<br />

maintain the current practice of collecting water resources data at the smallest administrative<br />

units (e.g. block) but when aggregating these data use hydrological based divides<br />

(topographic divides and hydrogeologically connected aquifers units). A precursor to this<br />

approach would be an improved understanding of the hydrogeological system particularly<br />

concerning regional aquifer flows for shallow and deep aquifers and on the nature of<br />

groundwater-surface water interactions. This approach would also require relevant staff at<br />

district level to work together to develop these aggregated datasets supported by a wider state<br />

body or in the case of interstate water resources a central government agency.<br />

(ii) Different methodologies for quantifying groundwater recharge should be trialed in pilot areas<br />

to confirm and improve the current methodology for groundwater resource assessment (Water<br />

Level Fluctuation method). These improved methodologies could subsequently be applied to<br />

the new hydrogeologically sound areas of assessment discussed in the previous bullet. This<br />

catchment based assessment would help overcome the issue of unknown specific yield in the<br />

WLF method. Marechal et al. (2006) 22 provide such an approach for a fractured hard-rock<br />

aquifer in Andra Pradesh. Rangarajan and Athavale (2000) 23 estimate a mean annual natural<br />

recharge of 71mm for a Deccan Traps aquifer in Shahdol district in Madhya Pradesh using the<br />

injected tritium method.<br />

(iii) There is a need to separate water resources management functions (overall management of<br />

water resources as a whole) from service delivery functions (irrigation, hydropower, water<br />

supply and sewerage) to avoid conflicts of interest and encourage commercial autonomy.<br />

Capacity building will be needed to support effective water resources planning of surface<br />

water and groundwater. Such an arrangement is being proposed for Maharashtra 24 State,<br />

which is dominated by Deccan Trap aquifers.<br />

(iv) Effective and early public participation approaches will be required particularly with farmers‘<br />

organizations to ensure that they are involved in the planning and decision-making processes.<br />

Capacity building of WUAs and Panchayats will be particularly important to ensure take-up of<br />

new approaches to groundwater use and aquifer management.<br />

5. Management Instruments<br />

130. The major issue in the basin is diminishing surface and groundwater resources. The net annual<br />

groundwater draft for drinking and irrigated agriculture exceeds the annual recharging availability.<br />

Nitrate and fluoride was elevated in some groundwater areas. There are a number of remedial<br />

measures that are required to arrest the key issues of: (i) current over-exploitation of groundwater<br />

reserves in the <strong>Kshipra</strong> sub-basin; (ii) options for artificial recharge and increasing base flows in the<br />

<strong>Kshipra</strong> rivers and (iii) the issue of some naturally occurring hazards and other contaminants in<br />

localized areas. The management instruments needed to address these issues is outlined below.<br />

131. To address the over-exploitation of groundwater reserves both the supply and demand<br />

approaches need to be addressed. In supply terms this includes developing ways to enhance<br />

recharge to aquifers so that depleted aquifer storage can be replenished (through artificial recharge),<br />

or on the demand side through irrigation methods that result in groundwater resource savings or<br />

changes in cropping patterns, which are discussed below.<br />

22 Marechal, J.C. et al. (2006) Combined estimation of specific yield and natural recharge in a semi-arid<br />

groundwater basin with irrigated agriculture. Journal of Hydrology, 329, 281-293.<br />

23 Rangarajan, R. and Athavale, R.N. (2000) Annual replenishable groundwater potential of India—an estimate<br />

based on injected tritium studies. Journal of Hydrology, 234:38–53.<br />

24 Foster, S. et al. (2007) Confronting the Groundwater Management Challenge in the Deccan Traps Country of<br />

Maharashtra - India . GW-MATE Case Profile Collection Number 18. World <strong>Bank</strong>.<br />

64

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