selection of source for water supply system

1. Sources of water for water
supply system
Submitted to Engr. Beenish akbar khan
Submitted by Hayat khan
B-tech civil 4th semester
ID 11664

2. Content…
 selection of water source.
 Sources of water.
 ground and surface water.
 Quality.
 quantity.
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3. Source selection of water
Factors effecting selection of water source:
 Cost
 Location
 Elevation
 Quantity of water
 Quality of water
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4. Source selection of water
 Cost:-
the source should be such that the overall cost of the
water supply project is brought down to the minimum.
 Elevation:-
it should be at higher level to supply
water by gravity flow only
 Location:
the source should be near to the town or city
such location require less lengths of pipes which
contribute in making project economical.
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5. Source selection of water
 Quality of water:
The source should contain water which is free from
pollution or other undesirable impurities and capable
of being easily and cheaply treated.
 Quantity:-
The source should be able to supply enough quantity of
water to meet the present and future demands of town or
city for various purposes like domestic, industrial, fire
etc.
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6. Sources of water…
Water sources
Surface water
Ponds,
Lakes, Streams
Rivers, Storage
reservoir
Ground water
springs,
Infiltration galleries
wells
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7. Surface water
 Lake:
A natural large sized depression formed on the surface of
the earth, when gets filled up with water is known as a
lake.
 Pond:
A pond is a man-made body of standing water smaller
than a lake. It consist of small quantity of water.
 Stream:
A body of water flowing in a channel or watercourse,
having more water in rainy season but become less and
less in dry season.
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8. lake
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9. pond
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10. stream
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11. Surface water
 River:
A river is natural watercourse, usually freshwater, flowing
toward an ocean, a lake, or another river.
 Storage reservoirs:
An artificial lake formed by the construction of dam across
a valley. Its basic function is the storage of water
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12. River
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13. Storage reservoir
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14. Ground water
 Spring:
The spring is formed when subsoil water is exposed to the
ground surface.
 Infiltration galleries:
It is a horizontal or nearly horizontal tunnel which is
constructed through water bearing strata. Also called
horizontal well.
 Well:
A well in defined as an artificial hole made in the ground for
the purpose of tapping water.
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15. Spring
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16. Infiltration gallery
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17. Well
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18. References
• Fundamentals of Water supply and
sanitary engineering. By rangwala 22nd
edition.
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