Banswara, Rajasthan
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DISTRICT GROUNDWATER BROCHURE GOVERNMENT OF INDIA MINISTRY OF WATER RESOURCES CENTRAL GROUND WATER BOARD Western Region Jaipur 2013 DISTRICT AT A GLANCE – BANSWARA, RAJASTHAN S No Item Statistics 1 GENERAL INFORMATION (i) Geographical area (sq km) 5037 (ii) Administrative Division Number of Tehsils 5 Number of Blocks 8 Number of Villages 1518 (iii) Population (As per 2011 Census) 17,97,485 (iv) Average Annual Rainfall (1971-2010) in mm 935.5 2 GEOMORPHOLOGY Major Physiographic Units Valley fills, Piedmont zone, Pediplains, Burried Pediplains and Plateau. Major Drainage Mahi and its tributaries Anas, Haran and Chap. 3 LAND USE (Ha.) (a) Forest Area 91247 (b) Cultivable Waste Land 50239 (c) Uncultivable Land 122391 (b) Gross Sown Area 332192 4 MAJOR SOIL TYPE Black and Red Soil 5 AREA UNDER PRINCIPAL CROPS (As on 2011) Crops Area in ha Kharif 225019 Rabi 109419 Rabi Jayad 2304 6 IRRIGATION BY DIFFERENT SOURCES Source No. of Area in ha structure Dug wells 22744 15393 Tube wells/Bore wells 1043 3940 Tanks/Ponds 691 3556 Canals Mahi Bajaj 59031 Sagar Project Other Sources 18758 Net Irrigated Area (ha) 102158 Gross Irrigated Area (ha) 336742 7 NUMBER OF GROUND WATER MONITORING WELLS OF CGWB (As on 31.03.2012) Number of Dug wells 24 Number of Piezometers 17 8 PREDOMINANT GEOLOGICAL FORMATIONS Granites, Gneisses and Schists of Bhilwara Super group, Phyllites, Schists and Quartzit es of Aravalli Super group and S No Item Statistics Deccan traps. 9 HYDROGEOLOGY Major Water bearing formation Basalt, Limestone, Quartzite, Phyllite & Schist and Granite Gneiss. Depth to water level (Pre-monsoon, 2012) (mbgl) 3.27-10.22 Depth to water level (Post-monsoon, 2012) (mbgl) 1.00-6.05 Long term declining water level trend (1998-2012) No in m/yr 10 GROUNDWATER EXPLORATION BY CGWB (As on 31.3.2012) Number of wells drilled (EW, OW, Total) EW-43 OW-4 Total-47 Depth Range (m) 45 -154 Discharge (liter per minute) 50 - 871 Transmissivity (m 2/day) Few - 753 11 GROUND WATER QUALITY Presence of chemical constituents more than TDS - Nil permissible limit (TDS >2000ppm, F>1.5 mg/l, F – >12 % Nitrate>45.0mg/l) Nitrate– 35 % Type of water Alkaline 12 DYNAMIC GROUND WATER RESOURCES (31.03.2009) in mcm Annual Ground Water Resource 233.73 Net Annual Ground Water Availability 213.18 Gross Annual Ground Water Draft 108.07 Stage of Ground Water Development 50.70% Category Safe 13 MAJOR GROUND WATER PROBLEMS AND Quality problems in some ISSUES areas and water scarcity in hilly and non command area. ii Ground Water Information Banswara District Contents 1.0 Introduction ..............................................................................................1 2.0 Rainfall & Climate ...................................................................................2 3.0 Geomorphology, Drainage, Soils & Irrigation Practices......................2 3.1 Drainage ....................................................................................................................... 2 3.2 Soils............................................................................................................................... 3 3.3 Irrigation ...................................................................................................................... 3 4.0 Groundwater Scenario.............................................................................3 4.1 Geological Framework................................................................................................ 3 4.2 Hydrogeology............................................................................................................... 4 4.3 Deep Aquifer System: ................................................................................................. 5 4.4 Groundwater Flow ...................................................................................................... 5 4.5 Depth to Water Level (Pre Monsoon 2011)............................................................... 5 4.6 Depth to Water Level (Post Monsoon 2011) ............................................................. 6 4.7 Water Level Fluctuation............................................................................................. 7 5.0 Groundwater Resources ..........................................................................8 6.0 Groundwater Quality...............................................................................9 6.1 Water Quality in Shallow Aquifer............................................................................. 9 6.2 Water quality in Deeper Aquifer ............................................................................. 11 7.0 Status of Groundwater Development ................................................... 11 7.1 Urban and Rural Water supply:.............................................................................. 12 8.0 Ground Water Development Strategy..................................................13 8.1 Ground Water Development .................................................................................... 13 8.2 Water Conservation and Artificial Recharge......................................................... 13 9.0 Ground Water Related Issues & Problems..........................................14 9.1 Groundwater Depletion Hazard .............................................................................. 14 9.2 Water Quality Hazard .............................................................................................. 14 9.3 Occurrence of Drought ............................................................................................. 14 10.0 Recommendations ..................................................................................14 List of Figures 1. Administrative Divisions 2. Hydrogeology 3. Depth to water level - May 2011 4. Depth to water level - November 2011 5. Seasonal water level fluctuation – 2011 6. Decadal pre-monsoon water level trend 7. Distribution of EC in ground water 8. Distribution Fluoride in ground water 9. Distribution Nitrate in ground water 10. Distribution iron in ground water List of Tables 1. Scientific studies undertaken by Central Ground Water Board 2. Geomorphological units 3. Tehsil wise distribution of Mahi basin area 4. Source wise area irrigated 5. Block wise deranges of water levels during May, 2011(Pre- monsoon) and November, 2011 (Post-monsoon). 6. Block wise ground water resource potential (as on 2009) 7. Block wise details of feasible groundwater abstraction structures 8. Details of urban water supply (as on 2012) 9. Status of rural water supply ii GROUND WATER BROUCHER DISTRICT - BANSWARA, RAJASTHAN 1.0 Introduction Banswara district is located between 23 o 11 ’ and 23 o 56 ’ latitude and 73 o 58 ’ and 74 o 49 ’ longitude covering an area of 5037 sq.km. The district is part of Udaipur Division and is divided into 3 sub-divisions namely Banswara, Ghatol, Kushalgarh, Administratively the district is divided into 5 tehsils viz. Ghatol, Garhi, Banswara, Bagidora and Kushalgarh and 8 development blocks viz. Ghatol, Garhi, Talwara, Chhoti Sarwan, Anandpuri, Bagidora, Sajjangarh and Kushalgarh. Total number of villages in the district is 1516 and it also has 2 urban towns. Rural and Urban population of the district is 16.70 lakh and 1.27 lakh respectively. Index map of the district is given in Fig. 1. Fig. 1: Administrative Divisions Central Ground Water Board has taken up various scientific studies in the district. A list of studies carried out in the district is given in Table 1. Table 1: Scientific studies undertaken by Central Ground Water Board S.No. Officer/ Project AAP Type of Study 1. R.K. Nagpal 1973-74 Systematic Hydrogeological Survey 2. R.K. Nagpal 1978-79 Systematic Hydrogeological Survey 3. M.S.Jethra 1985-86 Reappraisal Hydrogeological Survey 4. R.P. Mathur 1985-86 Reappraisal Hydrogeological Survey 5. 2006-07 Reappraisal Hydrogeological Survey Under ground Water Exploration Programme, 32 Exploratory (EW)N and 2 Observation wells (OW) were constructed in Aravalli and Bhilwara super groups of rock and 8 EW & 1 OW have been constructed in Deccan traps. During the recent National Aquifer mapping Project (2012-13) 3 EW and 1 OW have been constructed in the district. Since 1973, monitoring of water level is being carried out four times a year from 41 National Hydrograph Network Stations. 2.0 Rainfall & Climate Average annual rainfall (1971-2010) of the district is 935.5 mm. However normal rainfall for the period 1901 to 1970 is 870 mm. The annual rainfall gradually decreases from southern part to northern part. The maximum average rainfall is 1118 mm at Dhanpur and minimum average rainfall is 790 mm at Loharia. The climate of the district is dry except S-W monsoon season. The cold season is from December to February and is followed by summer from March to June. From mid of September to end of November constitutes post monsoon season. The district experiences either mild or normal drought once in two years. Severe type of drought has been recorded very rarely. Most severe type of drought has never occurred in the district. 3.0 Geomorphology, Drainage, Soils & Irrigation Practices The district is characterized by undulating topography. The eastern part is the extension of Malwa plateau comprising of high hills with intervening long and narrow valleys. In central part of the district, undulating to rolling topography prevails. While in western part plain and rolling topography prevails. The general slope of the area is from east to west. Geomorphologically the district is divided into four