Ground water studies of chickballapur district karnataka

GROUND WATER STUDIES OF CHICKBALLAPUR DISTRICT - KARNATAKA AND ITS MAPPING USING GIS

GROUND WATER STUDIES OF CHICKBALLAPUR DISTRICT - KARNATAKA AND WATER LEVEL MAPPING USING GIS SAFARUDHEEN P.A2013255017ANNA UNIVERSITYCHENNAI

ABOUT THE TOTAL PROJECT

Recreating the old ecological conditions of Chikaballapur district of Karnataka. Multi task Social workers, Agricultural and other Engineers, Geologists, Hydro geologists..STAGES

SOCIAL MINGLING PUBLIC PARTICIPATIONPLANTATIONGEOLOGICAL STUDIESGEOPHYSICAL AND GEOCHEMICAL STUDIESHYDROGEOLOGICAL STUDIESMAPPINGPLANNING AND MANAGEMENT

Chikaballapur Project Area

Chikaballapur is a district in the state of Karnataka. Total area 4210 km,56km north of Bengaluru.

Topography of the area is almost plain with some undulations in south-west, west and north. Average elevation 903m, highest elevation 920m ( centre of Nandi hill), and lowest elevation 887m above MSL

Entire drainage flow is towards north-east from south and west of the area. Average annual rainfall 715mm ( June to October).

North Pinakani (North pennar river) originates from Nandi hills in Chikaballapur taluk and flows in Chikaballapur and Gowribidanur taluks for about 55 kms.

The local geology of the area falls under Dharwar Stratigraphy. The entire area sits on the Peninsular Gneissic complex as a basement which is overlain by sub recent lateritic material.

Chikaballapur - no water for Domestic and agricultural purposes. Polluted ground water.

Reasons Subsurface geological conditions, environmental and climatic conditions, the crops used in this area.

Hot Mantlegenerate magma (average > 40 km depth)CrustAtmosphereSCHEMATIC DIAGRAM FOR DYKE GENERATION7PUMPING TEST To estimate aquifer parameters like Transmissivity T, Storativity SUse water Level Indicator for identifying the water level changes and GPS for locating the well.

PROCEDURE OF WELL MEASUREMENTSOILROCK1ROCK2DEPTH OF SOILDEPTH OF WATER LEVELGPSMEASURING TAPE9PROCEDURETake GPS reading and measure the radius of the wellMeasure the static water level and start pumping the wellMeasure drawdown and recovery in the pumping well with time.Relation among discharge, drawdown and time help to determine aquifer parameters.

Data Collected From Pumping Test

Drawdown Recovery Graph

S1/S2 GraphEQUATIONS FOLLOWEDDischarge (Q) = 3.14 radius2 Drawdown/time(unit = m3 / day) Transmissivity (T) = 264 Q/Drawdown 1440 (unit = m2 / day)

Storativity (S) = 2.25 T t0 / (radius2 1440) For JangalappalliR= 0.095mts, T0= 3, Q=0.00820557 m3 /min, T=59.85 m2 /min, S=31.0855631

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PREPERATION OF WATER TABLE MAPGPS is used for locating well in the field and static water level indicator is for identifying the water level of the well.

Put the collected data into the GIS software

Readings of static water level18

Taken values are shown in the map19

20 20CONCLUSION

From pumping test dataStorativity of wells of the chikaballapur district may be high in central part of the district and it is increasing towards the eastern parts. The lowest storativity value can be seen in pathapalya area around 10.2839 which is the south west part of the Chikaballapur.The highest storativity value is seen in Cheemanagaripalli about 79.1798, which is the eastern part of the district.Towards the northern region of the district - Ayitmadika and jangalappalli - storativity is decreasing.Comparing with other areas transmissivity is low in Ayitamdika and others are almost same.Discharge is very low in Cheemanagaripalli, it is around 0.0012 meter cube/ min.Discharge is very high in jangalapalli, 0.0082 meter cube/ min.

21The amount of water is very high in the southern part of the Chikaballapur district.

In the singappagaripalli region the water table shows highest level as 715- 744 meters.

In the middle part and the eastern part of the map shows very lower level of water table.

Berigollapalli, Lakkasandra, Gopanavaripalli and Rachavaripalli villages shows water table between 599 and 628 meters.

22FROM THE MAPTHANK YOU...2323