1. GIS-attributed Data Collection and
SpatialAnalysis for Improved
Community Sanitation
Presentation by:
Janeen Kim Cayetano, GIS Specialist | jdcayetano@gmail.com
CRS Palo Integrated Shelter/WASH Recovery Program

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Typhoon Haiyan/TyphoonYolanda Overview

3. 3
Typhoon Haiyan/TyphoonYolanda Overview

4. 4
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

8. 8
What is anAnaerobic 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 anABR?

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Process of clustering households for possibleABR:
Gathering GPS information + other needed data

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Process of clustering households for possibleABR:
Inputting of data in iForm

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Process of clustering households for possibleABR:
Plot GPS points of HH

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Process of clustering households for possibleABR:
Buffer  Dissolve  Join Output

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Process of clustering households for possibleABR:
Clustered Households Map

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Process of clustering households for possibleABR:
Clustered Households Map  proposedABR site

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Process of clustering households for possibleABR:
ABR site verification

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Process of clustering households for possibleABR:
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
NEXTSTEPS

21. GIS-attributed Data Collection and
SpatialAnalysis for Improved
Community Sanitation
Thanks to:
Anna Hrybyk, Program Manager | anna.hrybyk@crs.org
CRS Palo Integrated Shelter/WASH Recovery Program
Ian Carlo Zuniga, GIS Specialist | ictz21@gmail.com
CRS Samar Integrated Shelter/WASH Recovery Program