This document discusses the distribution, sources, and uses of water on Earth. It outlines surface water sources like rivers, lakes, and reservoirs, as well as groundwater sources from infiltration and wells. Water is used consumptively, partially consumptively, and non-consumptively, and overuse of water leads to the need for conservation methods like rainwater harvesting and water treatment before distribution.

1. WATER
ABS SEMIII WATERSUPPLY 1

2. DISTRIBUTION OF WATER ON EARTH

3. SOURCES OF WATER
SURFACE WATER
GROUND WATER

4. SURFACE WATER
POND
RIVER
STREMS
LAKE
STORAGE RESERVOIR

5. GROUND WATER
INFILTRATION
ARTESIAN WELL
OPEN WELL TUBE WELL SPRINGS

6. USES OF WATER
• CONSUMPTIVE USE • PARTIAL CONSUMPTIVE USE • NON CONSUMPTIVE USE
OVER USE OF WATER
CONSERVATION OF WATER
RAIN WATER HARVESTING

7. WATER TREATMENT
SCREANING
AREATION
SEDIMENTATION
COAGULATION
FILTERATION
DISINFECTION

8. WATER DISTRIBUTION SYSTEM

9. WATER SUPPLY SYSTEM
DIRECT WATER SUPPLY INDIRECT WATER SUPPLY