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Las Delicias , El Salvador Water Supply Project. Current Project Status, January 2010 Richard Cairncross & David Haussler. Presentation Outline. Overview of Las Delicias Community The Need for an Improved Water Supply System The EWB Process Preliminary Assessment Trip – July 2009
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Las Delicias, El SalvadorWater Supply Project Current Project Status, January 2010 Richard Cairncross & David Haussler
Presentation Outline • Overview of Las Delicias Community • The Need for an Improved Water Supply System • The EWB Process • Preliminary Assessment Trip – July 2009 • Design Options
Las Delicias, El Salvador Las Delicias
Las Delicias, El Salvador • Project History • Project FIAT has been active in Las Delicias for > 5 years • Initial Contact with Project FIAT • January 2009 • Application to EWB-USA • March2009 • Project Approved • May 2009 • Preliminary Assessment Visit • July 2009 • Assessment Trip • April 2010 • Community Facts • ~600 homes, 3000 residents • 15 miles NW of San Salvador • On Western Slopes of Volcan San Salvador • Homes Spread Out, but Las Delicias is Bordered by Several Similar Communities • Water Storage & Piping System installed 20 years ago With Water Delivery by Truck • Well and Pump Installed < 5 years ago • Residents are Poor (<$10/week income) • Community Well-Organized through Adesco and local NGO • Able to spend about $5 per household on water each month
The Problem: Water Supply in Las Delicias is: • Unreliable • Inequitable • Questionable Quality A Culture of Scarcity exists that leads to hoarding
A process to achieve a goal. • Goal: Provide clean potable water to everyone in the community of around 5000 people. • Identify Challenges & Evaluate Options to reach the goal. • Gather an appropriate team. • Evaluate design alternative and Develop an implementation plan.
Las Delicias Project History • Initial Contact with Project FIAT • January 2009 • Application to EWB-USA • March 2009 • Project Approved • May 2009 • Preliminary Assessment Visit • July 2009 • Assessment Trip • April 2010
Preliminary Assessment Trip to Las Delicias, July 2009 Las Delicias San Salvador Project FIAT Guest House
Las Delicias Community Map with Piping System • Pump Runs 6 Hours a day. • Pump puts out about 150 GPM. • Depending on the time of year pump will run a max. of 5 days
Flow test • Meter at well-head indicated about 150 GPM
Assessment Trip to Las DeliciasPlanned for Spring 2010 GOALS of Assessment Trip • Evaluate failure of well riser pipe to improve design and reduce frequency of replacements. • Evaluate spring source and supply lines between spring and storage tanks to determine potential for increasing yield. • Measure water quality indicators at several source points (well source, spring source) • Discuss design options with community such as point-of-use water treatment systems, water meters, automatic water shut-off valves on household pilas. • Initiate community health assessment. • Meet with engineers who installed well or water authorities to find well information. Determine local codes and identify regulatory agencies. • Measure elevations of critical distribution points in water system.
EWB impacts their lives • Provides professional resources to help resolve problems facing poor communities in developing countries. • EWB members dedicate their TIME and skills. • Have a genuine concern for their neighbors. • Have said yes to a call for help.
Las Delicias Pre-Assessment Summary • Pumps, piping, and storage systems are operational • Distribution of water to households is inequitable • Some houses receive water daily • Others receive water once per week • A culture of scarcity exists leading to hoarding water when it is available • Chlorine treatment occurs on effluent from storage tanks • Anecdotal evidence of pipe failures • Corrosion of pipes in well • Failure of unions in PVC at high flowrates • Old pipes are “brittle” • Community financial system is well established