Koppal District, Karnataka
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GOVERNMENT OF INDIA MINISTRY OF WATER RESOURCES CENTRAL GROUND WATER BOARD GROUND WATER INFORMATION BOOKLET KOPPAL DISTRICT, KARNATAKA SOUTH WESTERN REGION BANGALORE FEBRUARY 2013 FOREWORD Groundwater is an essential component of the environment and economy. It sustains the flow in our rivers and plays an important role in maintaining the fragile ecosystems. The groundwater dependence of agrarian states like Karnataka is high. Recent studies indicate that 26 percent of the area of Karnataka State is under over exploited category and number of blocks is under critical category. In view of the growing concerns of sustainability of ground water sources, immediate attention is required to augment groundwater resources in stressed areas. Irrigated agriculture in the state is putting additional stress on the groundwater system and needs proper management of the resources. Central Ground Water Board is providing all technical input for effective management of ground water resources in the state. The groundwater scenario compiled on administrative divisions gives a better perspective for planning various ground water management measures by local administrative bodies. With this objective, Central Ground Water Board is publishing the revised groundwater information booklet for all the districts of the state. I do appreciate the efforts of Dr. K.Md.Najeeb, Regional Director and his fleet of dedicated Scientists of South Western Region, Bangalore for bringing out this booklet. I am sure these brochures will provide a portrait of the groundwater resources in each district for planning effective management measures by the administrators, planners and the stake holders. Sushil Gupta 2 CHAIRMAN PREFACE Ground water contributes to about eighty percent of the drinking water requirements in the rural areas, fifty percent of the urban water requirements and more than fifty percent of the irrigation requirements of the nation. Central Ground Water Board has decided to bring out district level ground water information booklets highlighting the ground water scenario, its resource potential, quality aspects, recharge – discharge relationship, etc., for all the districts of the country. As part of this, Central Ground Water Board, South Western Region, Bangalore, is preparing such booklets for all the 30 districts of Karnataka state, of which six of the districts fall under farmers’ distress category. The Yadgir district Ground Water Information Booklet has been prepared based on the information available and data collected from various state and central government organisations by several hydro-scientists of Central Ground Water Board with utmost care and dedication. This booklet has been prepared by Sri.N. Nagaraja, Scientist ‘D’, Central Ground Water Board, South Western Region, Bangalore. The figures were prepared by Sri. J.Sivaramakrishnan, Assistant Hydrogeologist. The efforts of Report processing section in finalizing and bringing out the report in this format are commendable. I take this opportunity to congratulate them for the diligent and careful compilation and observation in the form of this booklet, which will certainly serve as a guiding document for further work and help the planners, administrators, hydrogeologists and engineers to plan the water resources management in a better way in the district. (Dr. K.Md. Najeeb) Regional Director 3 KOPPAL DISTRICT AT A GLANCE 1 GENERAL INFORMATIOM STATISTICS i) Geographical Area 5559 sq.km. ii) No. Of Taluks 4, Koppal, Kushtagi. Gangavati and Yelaburga. No of Hoblis/villages 20/628 iii) Population (as on 2011 census) 1391292 iv) Average Annual Rainfall 572 mm 2 GEOMORPHOLOGY Major Physiographic Units 2 Major Drainages 3 3 LAND USE a) Forest Area (sq.km) 294.51 b) Net Area Sown (sq.km) 3807.00 4 MAJOR SOIL TYPES 1. Black Cotton Soil 2. Red Soil 3. Red Sandy Soil 5 Main crops grown in the district during 2009-10 (cropped area in hectares) Total pulses 74581 Mulberry 173.80 4 Cotton 17514 Sugarcane 945 Sunflower 83434 Groundnut 48093 Total oil seeds 150090 total vegetables 8785 Wheat 11267 Maize 41056 Bajara 56210 Total friuts 9113 6 Area irrigated in hectares by different source (2009-10) Dug wells 0 Bore wells 562 Tanks 174 Canals 37568 Other Sources 240 Lift Irrigation 1309 Gross Area Irrigated 96019 5 No .of Ground Water structures Domestic BW 4985 Piped water supply 299 7 Number of ground water monitoring wells of cgwb (as on 31.03.2011) Dug wells 30 Piezometers 7 10 Predominant geological formations Peninsular gneissic complex consisting of Granites, Gneisses and Dharwar group consisting of schist’s 11 Hydrogeology Major Water Bearing Formations Weathered and fractured Granites, Gneisses and schists, Premonsoon Depth to Water Level (2011) 1.910 to 12.200 mbgl Postmonsoon Depth to Water Level (2006) 1.320 to 1355 mbgl Long Term Water Level Trend (1997-2006)( in Premonsoon 3.009m in m per year) mean2001- ganagavathi taluk 2010 minimum to10.706m asa maximum in waterwaterlve koppal taluk water vel recorded levels is recorded 6 Postmonsoon 1.272m ingangavati mean2001- taluk as a minimum 2010waterlev to9.539m maximum elrecorded water levels is recordedin yelburgataluk 12 GROUND WATER EXPLORATION BY CGWB AS ON MARCH 2007 EW (Depth Range /Discharge range) 19 Depth – 40- 80m Discharge –0.1-7.6 lps OW(Depth Range /Discharge range) 17 Depth - 11- 80 m Transmissitivity (m2/day) 0.2 to 900 Storitivity (S) 3.2 X 10-4 to 5.84 X 10-4 13 Ground water quality Presence of chemical constituents more than Fluoride. Nitrates and TDS in few permissible limits packets. Type of water Potable to Brakish 14 Dynamic ground water resources (2004) in ham Annual replenishable ground water resource 701.49 Net annual ground draft 337.80 Projected demand for Domestic and Industrial 60.48 use up to 2025 Stage of ground water Development (%) 48.12 7 15 Water management training programmes On 13th and 14th November2003 organized WMTP programmewas onducted on “Artificial Recharge to GroundWater techniques” at Koppal town. There were about 120 participants. 16 Efforts of artificial recharge and rainwater - harvesting 17 Ground water control and regulation Not Notified No of OE Blocks 3 (part) No of Critical Blocks 1 (part) 18 Major ground water problems and issues Rainfall is erratic, irregular and deficit, Application of traditional farming and irrigation methods, unscientific development of groundwater, Brackishness salinity of groundwater along the major river courses and command area’s ,and nitrate, fluoride problems. 8 1.0 INTRODUCTION The Koppal district came to existence on 1st April1998 by carving out of erst-while Raichur district of Karnataka with a geographical area of 5559 sq km, located in the northern part of the state with four taluks namely, Koppal, Yelburga Gangavati,and Kustagi. It lies between north latitudes 15°09’ and 16° 01’ and east longitudes 75° 46’ and 76° 48’. It is one of the backward districts in the northern part of the state and situated in the old Hyderabad- Karnataka region. The district has 588 inhabited and 40 uninhabited villages with a total population of 1391292, as per 2011 census. The area falls in the Tugabhadra sub-basin of the Krishna basin. Tugabhadra river flows in the southern boundary of the districct in north –easterly direction. Koppal district is bordered by Bagalkot district in the north, Raichur in the east, Bellary in the south and Gadag district in the West. 1.1Administrative set-up There are 594 inhabited villages and 4 town municipalites in the district. The administrative map of the district is presented in Fig-1 and the details are given in table 1.1 The district has been divided in to 4 taluks , namely Gangavathi, Koppal, Kustagi and Yelaburga. These four taluks are divided in to 20 hoblies consisting of 594 inhabited villages and 35 uninhabited villages thus making a total of total 629 revenue villages and 134 united grampachayaths. The details of the administrative divisions are shown in table1.1. Koppal district falls in North Dry Zone (Zone – III of Agro climatic Zones of Karnataka). The total geographical area of the district is 5, 52,495 ha of which 3, 80,721 ha is cultivable area. The district has a total of 2, 08,478 farm families of which the number of small & marginal farmer is 1, 28,404 which accounts to 62% of farm families. The district has an average annual rainfall of 572 mm. Soils are well drained red sandy loam to medium deep black soils. Total literacy percentage of the district is 55.02 with male literacy 69% and female literacy 40%.The district has two major irrigation projects namely, Tungabhadra & Hire hall Projects which irrigates 46,000 & 48,460 ha respectively. The district has 76% of the cultivable land under rain fed condition and 24% under irrigated condition. 36% of the net area are sown more than once which Leads to high cropping intensity of 137% (both rain-fed & irrigation).The Koppal District has 11,615 ha of land under horticulture crops which is 3% of the district area and 0.76% of the state. In the scenario of industry promotion the district has 3020 small and marginal industrial units of which 399 (13.00%) are based on agriculture are allied units. The district has 106 rice mills with a capacity of 34000 m.t. and provides employment to 1060 similarly 160 flour mills with capacity of 16 m.t. provides employment for 320,26 decorticators with a capacity of 32 m.t. provide employment to 80 people. There are 16 regulated markets; five in Yelburga taluk, 4 each in Gangavati & Koppal, 3 in Kustagi taluk. There are two cattle markets, one at Ginigera and another at Sriramnagar of 9 Gangavati taluk. The sheep market at Kukampalli in Koppal taluk assist agriculturists for their cattle and animal trading. Table 1.1 showing administrative setup 2009-10 Taluk Hoblies Grampam Inhabited Un Revenue inhabited chayaths villages villages villages Gangavathi 8 38 148 9 157 Koppal 4 35 144 7 151 Kushtagi 4 38 164 13 177 Yelburga 4 33 138 6 144 Total 20 134 594 35 629 Source: web koppalnic.in 1.2 Communication:- The district is having a good network of roads connecting neighboring taluks and districts.