4.07.02 Infrastructure: Water

Tue, 11/20/2007 - 12:51

Note: This is a first attempt to provide guidance in preparing the information product needed for the CLUP and is intended to be used hand-in-hand with Volumes 1 and 2. As more knowledge is gathered, the IP will be updated. Likewise, updates may be required due to new or changing land-use policies. Furthermore, data will continuously be prepared by the custodians, which may require updates.
For the latest update, please check HLURB Homepage: http://www.hlurb.gov.ph/ or contact HLURB, telephone +632 927 2698.

   
  Step 1: Provide a Background and Identify the Objectives of the GIS Analysis  
  Water is one of the great necessities of human life, which is often taken for granted. A supply of clean water is absolutely necessary for life and health, yet many people lack access to adequate water supply or can only obtain it at high prices. In many municipalities/cities, households in informal settlements are rarely connected to the network and can only rely on water from vendors at a high cost compared the tap water price. Improving access to safe water implies less burden on people, mostly women, to collect water from available sources. It also means reducing the burden of water related diseases.

This analysis monitors access to improved water sources based on the assumption that improved sources are likely to provide safe water.

 
  The Objective is to efficiently distribute potable water to the various barangays within the city/municipality (taken from Volume IV of the old guidelines).  
  Step 2: Identify the Indicators to Evaluate Objective Fulfillment  
  Define Planning Standards for accessibility, service provision/consumer ratio, consumer/housed service, physical condition of buildings and plot, etc. (refer to volume 2).
  1. Proportion of the urban barangay population with sustainable access to an improved water source. This is the percentage of the urban population who use any of the following types of water supply for drinking: piped water, public tap, borehole or pump, protected well, protected spring or rainwater.
  2. The water should be affordable and at a sufficient quantity that is available without excessive physical effort and time.
  3. Improved water sources do not include vendor-provided waters, bottled water, tanker trucks or unprotected wells and springs.
  4. This indicator requires planning standards as follows:
  5. Affordable: water should not take an undue proportion of the household income, i.e. less than 10 (?)%;
  6. Sufficient quantity: water should be available at a quantity of at least 20 (?) liters per person per day.
  7. Without excessive efforts and time, obtaining water for the households should not take an undue proportion of the household’s time (less than one hour a day for the minimum sufficient quantity of at least 20 (?) liters per person per day).

PD 856 (Code of Sanitation)
Sec. 13 Provision for the protection of Drinking Water
b. No artesian, deep or shallow well shall be constructed within 25 m. from any source of pollution

 
  Water Supply Typical Model System

Level Features Population Served Remarks Distance From Water Outlet To Farthest House
I Point Source system
-Shallow Well
- Deep Well
  For areas where houses are few and scattered 250 m
II Communal Faucet
development point source
electrically driven pumps
storage tanks
piped distribution network with public faucets
200 households per system with 5.7 households per faucet For rural areas where houses are closely clustered 25 m
III Individual house connection
development point source
electrically driven pump
storage tank
piped distribution network with house faucets
1000 households and more Densely populated urban areas Within houses

Source: LWUA

Source: Water Supply of Volume IV – Infrastructure and Utilities of HLURB Guidelines

  Water Standard Requirements

Residential Level I
60 lcpd
Level II
100-110 lcpd (individual connection)
30 lcpd (public faucet)
Commercial/Industrial Communal Faucet individual connection
Institutional 1.0 – 2.0 cumd/ connection
3.0 cumd/ connection
individual connection

Source: Annex V of Volume V – Land Use of HLURB Guidelines

  Step 3: Create the Database  
  Attributes  
  There are 6 tables of Infrastructure Information to prepare for Step 4. Those in bold are used in the example below:

IS10 Water Sources 
IS11 Water Distribution Line by Diameter and Material Used 
IS12 Pumps 
IS13 Communal Faucet 
IS14 Current and Projected Needs by Barangay Population. 
IS15 (Operating) Irrigation System

 
  The Custodians of sector data are the LGU and the Local Water Districts.  
  Spatial  
  The object will be different types of (sector): ………… for which a specific symbol is needed. A public (sector) will have a red and a private (Sector) will have a blue color coding.  
  The feature type will be a point/polylines/polygon. The location will be traced by a GPS/primary survey/secondary source. SYMBOL for the (service)
  Photo showing the spot for GPS reading (if needed)  
  Water source (point)
  Water pipe line (polylines)  
  Barangay served (polygon)  
  Water Level  
  Level I
  Level II
  Level III
  Step 4: Analyze the Data  
  The following Analyses layers can be prepared based on the Baseline Information:  
  Barangay with sufficient provision of water  
  Barangay with insufficient provision of water.
Maybe also ‘critical insufficient provision of water’ is needed as an indicator
 
  Barangay where the projected population year ???? will not have sufficient provision with water  
  Critical. The water source/pump/pipe line is not functional  
  Poor: poorly maintained/very old and has temporary breakdowns and there is a great risk for a total breakdown within the planning period  
  Fair: The water source/pump/pipe line is in (good) working condition.  
  Relate the Water Source with the population  
  Highly populated barangay
  Level I water Source
  Critical. Highly Populated Barangays with poor water source (Level I)
  Step 5: Present the Data  
  The water analysis layers will be put on top of the Base Map as the example below shows the water level for each barangay:  
   
  Show the location of water sources  
   
  Show the Highly Populated Barangays with poor water source (Level I).  

Ver 1.0


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