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GIS-attributed Data Collection and
Spatial Analysis for Improved
Community Sanitation
Presentation by:
Janeen Kim Cayetano, GIS Specialist | [email protected]
CRS Palo Integrated Shelter/WASH Recovery Program
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Typhoon Haiyan/Typhoon Yolanda Overview
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Typhoon Haiyan/Typhoon Yolanda Overview
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Palo was one of the
hardest hit municipalities
in Eastern Leyte. The
entire municipality was
severely devastated by the
super typhoon.
CRS is supporting 10,000
households whose
shelters and latrines were
affected
CRS Integrated Shelter/WASH Recovery Program
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CRS Integrated Shelter/WASH Recovery Program
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CRS Integrated Shelter/WASH Recovery Program
Detailed assessment of more than 10,000 households to
provide sustainable sanitation facilities that do not
contaminate the groundwater despite challenging
environmental conditions.
Water Table Depth
Soil Type
Flooding conditions
Area of land available
Total no. of users
GPS location of the
proposed latrines
Proximity to water
sources
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Area Conditions
Urban and
Dense
HH tightly spaced
together
Limited space
available
Extremely High Water
Table
Communal Septic Tank
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What is an Anaerobic Baffled Reactor (ABR)?
An extended septic tank for multiple households with a series of
4-6 chambers with baffles that aids in the digestion of sludge using
gravity and improved water quality of the effluent leaving the
chambers. This technology does not pollute the groundwater and
can save space.
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Advantages
• Cost is cheaper than individual septic tank $4100 ABR
for 8 HH
– $500 per HH vs $650-$700 per HH (individual septic tank)
• Can be shared minimum of 3 or more households or 64
users
– 40-60 liters/person/day ABR capacity: 3 cu.m/day
• High-tech design using premium composite materials
and quality management result in product lifetime of +/-
15 years.
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Pilot Site ABR for multiple households
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How do we determine which
households should be
equipped with an ABR?
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Process of clustering households for possible ABR:
Gathering GPS information + other needed data
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Process of clustering households for possible ABR:
Inputting of data in iForm
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Process of clustering households for possible ABR:
Plot GPS points of HH
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Process of clustering households for possible ABR:
Buffer Dissolve Join Output
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Process of clustering households for possible ABR:
Clustered Households Map
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Process of clustering households for possible ABR:
Clustered Households Map proposed ABR site
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Process of clustering households for possible ABR:
ABR site verification
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Process of clustering households for possible ABR:
ABR Final Proposed Sites
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• Manufacture of ABRs made from Fiber Reinforced
Plastic (water tight)
• Procurement of plastic septic tanks and other
construction materials
• Hygiene Promotion on how to use and maintain
properly
NEXT STEPS
GIS-attributed Data Collection and
Spatial Analysis for Improved
Community Sanitation
Thanks to:
Anna Hrybyk, Program Manager | [email protected]
CRS Palo Integrated Shelter/WASH Recovery Program
Ian Carlo Zuniga, GIS Specialist | [email protected]
CRS Samar Integrated Shelter/WASH Recovery Program
