• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month
Page
  1. 1
    1
  2. 2
    2
  3. 3
    3
  4. 4
    4
  5. 5
    5
  6. 6
    6
  7. 7
    7
  8. 8
    8
  9. 9
    9
  10. 10
    10
  11. 11
    11

La Mesa Watershed

Extracts from this document...

Introduction

Michael Diamond February 27, 2009 Block F Mr. Cheatle The Current State of Water Supply to Metro Manila from La Mesa Watershed A) The Physiological, Hydrological, Ecological and Management Issues at La Mesa Watershed Reservation 1. Introduction La Mesa Dam (Figure 1.0) is located in the Novaliches Watershed. The Novaliches Watershed is a drainage basin that covers land in Quezon City, Caloocan City and the Rizal Province. The drainage basin surrounding the La Mesa reservoir covers 2700 hectares, of which 2000 hectares is forest cover. It supplies around 4 billion liters of water per day. Ninety seven percent of Metro Manila's water supply comes from this source. Therefore, careful management is needed for this area, because of its vital importance to the health and life of the 12 million people in Metro Manila. This report will showcase the physiographic features and vegetation of La Mesa. It will also explain the hydrological system of La Mesa, the water supply, the way the water is treated and made safe for drinking. Finally, it will also include ideas as well as the pros and cons for new water sources. Figure 1.0 2. The Setting: Physiographic Features, Vegetation, Soils and Rocks Figure 1.1 The main physiographic features include: a gently undulating landscape, many small narrow streams, some streams are so small that they aren't seen since they are passing through rock. The highest elevation is 118 meters (387 feet.) The height of the reservoir (at lake level) is 78-80 meters above sea level. The main river system in La Mesa is the Calumpit River. ...read more.

Middle

Figure 1.9 Figure 2.0 When raw water enters La Mesa Dam it carries a lot of dust, germs, sediment and other minerals, so when it enters the filtration plant (Figure 1.9) it is given a pre-chlorine treatment to kill the germs in the water. After this step, coagulants (Alum and Polymer) are added into the water to make the dust, sediment and other dissolved minerals coagulate and group together. When they group together they attain the appearance of yellow soap bubble "lumps" (Figure 2.0). These lumps float to the surface or sink to the bottom. Then the water passes through the flocculators, where the "lumps" which float on the surface are removed. Then the water passes through the sedimentation basin where the "lumps" that sink to the bottom are removed. After passing through the flocculators and sedimentation basin, the water is injected with chlorine again. Afterwards the water passes through filtration beds, these filtration beds act as strainers; each one is smaller than the next, to remove microscopic impurities in the water. After passing through the filtration beds the water is given a final treatment of chlorine to kill any germs or microbes that was left over from the previous chlorine treatments. Then, after undergoing the final chlorine treatment the water is pumped to the taps in Metro Manila. D) Ideas for increasing the Water Supply 7. Providing for Growing Water Needs: Developing new water sources In 2007 Greenpeace released a study,4 which reported that the quality of fresh water in the country was declining; and the quantity of water was declining as well. ...read more.

Conclusion

P.S. RES. NO.35. Republic of the Philippines. 22 Feb 2009 <http://www.jambymadrigal.com/resolutions_2007/res_35_La%20Mesa%20Resolution.pdf>. 4 Burgonio, TJ . "MWSS to tap Laiban Dam as new source of Metro Manila water." Haribon. 15/Oct/2007. Haribon Foundation. 22 Feb 2009 <http://www.haribon.org.ph/?q=node/view/496>. 5 Burgonio, TJ . "MWSS to tap Laiban Dam as new source of Metro Manila water." Haribon. 15/Oct/2007. Haribon Foundation. 22 Feb 2009 <http://www.haribon.org.ph/?q=node/view/496>. 6 Burgonio, TJ . "MWSS to tap Laiban Dam as new source of Metro Manila water." Haribon. 15/Oct/2007. Haribon Foundation. 22 Feb 2009 <http://www.haribon.org.ph/?q=node/view/496>. 7 Burgonio, TJ . "MWSS to tap Laiban Dam as new source of Metro Manila water." Haribon. 15/Oct/2007. Haribon Foundation. 22 Feb 2009 <http://www.haribon.org.ph/?q=node/view/496>. 8 Burgonio, TJ . "MWSS to tap Laiban Dam as new source of Metro Manila water." Haribon. 15/Oct/2007. Haribon Foundation. 22 Feb 2009 <http://www.haribon.org.ph/?q=node/view/496>. 9 Burgonio, TJ . "MWSS to tap Laiban Dam as new source of Metro Manila water." Haribon. 15/Oct/2007. Haribon Foundation. 22 Feb 2009 <http://www.haribon.org.ph/?q=node/view/496>. 10 MWSS, "Laiban Project." Metropolitan Waterworks and Sewerage System. MWSS. 22 Feb 2009 <http://mwss.gov.ph/projects.php?id=11>. 11 MWSS, "Laiban Project." Metropolitan Waterworks and Sewerage System. MWSS. 22 Feb 2009 <http://mwss.gov.ph/projects.php?id=11>. 12 Burgonio, TJ . "MWSS to tap Laiban Dam as new source of Metro Manila water." Haribon. 15/Oct/2007. Haribon Foundation. 22 Feb 2009 <http://www.haribon.org.ph/?q=node/view/496>. 13 MWSS, " Angat Water Utilization and Aqueduct Improvement Project (AWUAIP)." Metropolitan Waterworks and Sewerage System. MWSS. 22 Feb 2009 <http://mwss.gov.ph/projects.php?id=10>. 14 MWSS, " Angat Water Utilization and Aqueduct Improvement Project (AWUAIP)." Metropolitan Waterworks and Sewerage System. MWSS. 22 Feb 2009 <http://mwss.gov.ph/projects.php?id=10>. 15 MWSS, " Angat Water Utilization and Aqueduct Improvement Project (AWUAIP)." Metropolitan Waterworks and Sewerage System. MWSS. 22 Feb 2009 <http://mwss.gov.ph/projects.php?id=10>. ?? ?? ?? ?? ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Physical Geography section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Physical Geography essays

  1. Epping Forest

    The site with the most soil erosion will tell me which site has got more soil compaction. Push the penetrometer into the soil until it reaches the red bit. Then check what number the soil compaction is to. Pentrometer The soil was very hard, so it was hard to put the pentromet-er in.

  2. Free essay

    Exploitation and management of resources

    8 A way of managing our freshwater reserves is by, instead of abstracting more freshwater and groundwater to be used in agriculture/the household/industry, we re-use our wastewater (brown water). This method is being used in the Tel Aviv Conurbation, Israel; Case Study; At least half a million hectares in 15 countries are being irrigated with treated urban wastewater.

  1. Is There a Relationship Between Desirability and Quality of Life at Ward Level in ...

    When taking the reading we cupped our hands around the sides of the decibel meter so that the wind blowing across the top of the meter would not distort the result, this was particularly essential next to main roads where there was a lot of wind generated by the traffic

  2. Wildboarclough Field Trip

    They had a spare copy of the Land use map. They had to mark on two things. 1. Changes in land use e.g. Housing, farming land. 2. Evidence of human activity e.g. buildings, draining systems. The only trouble with this kind of data is that it's based on individual observation

  1. Dominican Republic

    It can cause severe injuries or maybe even death. The drainage systems are extremely inefficient! Since these countries are next to the equator (this means they have two main seasons, the rainy season and the dry season)

  2. Geography- Whistable Coast Project

    Further more, the teachers took along with them first aid kits in case someone gets hurt. It contains plasters, bandages and a 25 meter throw line which is fluorescent and can float on water, as well as the staff are first aid trained - all these things are a legal, health and safety necessity.

  1. An Investigation Into Kingston Area Shopping Centres and Their Patterns of Use

    shops and services' sheet and as we counted the number of shops, we ticked it off on the sheet. This was done as a group to make sure we decided the right classification number to each shop. To know what type of shops there are in the areas being studied

  2. Geography - Ivestigation of the River Colne, Buckinghamshire

    soft rock and so is easily eroded, so the river will expend more energy eroding the chalk than in moving, in kinetic energy. Also, because the river is no longer in the Chiltern Hills, so its gradient is probably getting shallower all along the section I studied.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work