Water Resource, Management and Operations of DCWD PPT Flashcards
Ice cores in Greenland
provide a record of water
storage over
100,000 years.
Ocean water percentage
97%
Fresh water percentage
3%
Glaciers percentage
70% of freshwater
Underground sources percentage
29% of freshwater
Rivers n lakes percentage
<1%
Basins in Davao City
- Davao Bunawan Lasang Basin
- Talomo Lipadas Sibulan Basin
Water Balance Eq
P = Q + E +∆S
P : precipitation
Q : run off
E : Evapotranpiration
∆S : Storage Change
Average PH rainfall
2400 mm/year
Number of PH rivers and Lakes
421 (20 major); 79
Surface Water Phil
125.8 Bcu.m.
Groundwater Phil
20.2 Bcu.m.
Water Supply and Consumption
146.0; 40.9 bcu.m.
Consumption Ratio
28%
Water use of:
Agricultural
Industrial
Domestic
— 74% (21.10 Bcu.m)
— 9% (2.57 Bcu.m)
— 17% (4.85 Bcu.m)
National coordinating and
regulating agency on water
resources management and
development
NWRB
NWRB meaning
National Water Resources Board
Level 1 Water Supply
Point Source
Level 2 Water Supply
Communal Faucet System or Stand Post
Level 3 Water Supply
Waterworks System
Farthest user in a level 1 source
250
Farthest user in a level 2 source
25
- Waterworks system or individual house connections
– A system with a source, a reservoir, a piped distribution network and household taps.
Level 3