ground water studies of chickballapur district karnataka

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GROUND WATER STUDIES OF CHICKBALLAPUR DISTRICT - KARNATAKA AND WATER LEVEL MAPPING USING GIS SAFARUDHEEN P.A 2013255017 ANNA UNIVERSITY CHENNAI

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GROUND WATER STUDIES OF

CHICKBALLAPUR DISTRICT -

KARNATAKA AND WATER

LEVEL MAPPING USING GIS

SAFARUDHEEN P.A

2013255017

ANNA UNIVERSITY

CHENNAI

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 PARTICIPATION

PLANTATION

GEOLOGICAL STUDIES

GEOPHYSICAL AND GEOCHEMICAL STUDIES

HYDROGEOLOGICAL STUDIES

MAPPING

PLANNING AND MANAGEMENT

Chikaballapur Project Area

Chikaballapur is a district in the state of Karnataka.

Total area 4210 km²,56 km 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 Mantle—generate magma (average > 40 km depth)

Crust

Atmosphere

SCHEMATIC DIAGRAM FOR DYKE GENERATION

PUMPING TEST

To estimate aquifer parameters like Transmissivity T, Storativity S

Use water Level Indicator for identifying the water level changes and GPS for locating the well.

PROCEDURE OF WELL MEASUREMENT

SOIL

ROCK1

ROCK2

DEPTH OF SOIL

DEPTH OF WATER LEVEL

GPSMEASURING TAPE

PROCEDURE

Take GPS reading and

measure the radius of

the well

Measure the static

water level and start

pumping the well

Measure 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 Graph

0

20

40

60

80

100

120

140

160

180

200

1 10

Tim

e (

min

ute

)

S1/S2

S1/S2 Graph of Jangalapalli Pump Test

EQUATIONS FOLLOWED

Discharge (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 Jangalappalli

R= 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

MAP

GPS 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

map

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× × ×

CONCLUSION

From pumping test data

Storativity 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.

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The 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.

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FROM THE MAP

THANK YOU...

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