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Impact of Post-Construction Support on Drinking Water Safety in El Salvador

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[object Object],[object Object],[object Object],Georgia Kayser William Moomaw, Jeff Griffiths, Julie Schaffner, Beatrice Rogers The Fletcher School, Tufts University
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Failures in Improved Systems
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Collaborating Organizations 1. ASSA – Asociacion Salvadoreña de Servicios de Agua 2. IRWA – International Rural Water Association
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Variable Control Circuit Rider Private HH connection 91% 89% Source water = ground water 56% 57% Source water = spring 38% 32% Pump used to access/distribute water 78% 82% Average # HHs served 300 272 NGO constructed system 65% 75% Average age of system 13 years 12 years Distance from nearest paved road .68 km 1 km
Results: Water Contamination is More Common in Control Communities Statistically significant results, p < .05 TC = Total Choliform EC = E.coli
* = statistically significant p < .05 * *
* * * = statistically significant p < .05 ñ * *
[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],TC = Total Choliform EC = E. coli
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Thank You Contact: georgia.kayser@tufts.edu

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Impact of Post-Construction Support on Drinking Water Safety in El Salvador

  • 1.
  • 2.
  • 3.
  • 4.
  • 5.
  • 6. Variable Control Circuit Rider Private HH connection 91% 89% Source water = ground water 56% 57% Source water = spring 38% 32% Pump used to access/distribute water 78% 82% Average # HHs served 300 272 NGO constructed system 65% 75% Average age of system 13 years 12 years Distance from nearest paved road .68 km 1 km
  • 7. Results: Water Contamination is More Common in Control Communities Statistically significant results, p < .05 TC = Total Choliform EC = E.coli
  • 8. * = statistically significant p < .05 * *
  • 9. * * * = statistically significant p < .05 ñ * *
  • 10.
  • 11.
  • 12.