Uno Mas Final Presentationdwatkins/idesign09/2012/Uno Mas...Microsoft PowerPoint - Uno Mas Final...
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1/11/2013 1 Water for Honey Hill: Supplying Water to the Community of Cerro Miel Brittany Allen – CE, Elizabeth Jefferson – ENVE, Manda Schierbeek – ENVE, Merete Sørum – ENVE Outline • Background • Data Collection • Data Analysis • Design Recommendations • Cost Analysis and Construction Schedule • Conclusion Water tap in community Photo by Manda Schierbeek
Transcript of Uno Mas Final Presentationdwatkins/idesign09/2012/Uno Mas...Microsoft PowerPoint - Uno Mas Final...
1/11/2013
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Water for Honey Hill:
Supplying Water to the Communityof Cerro Miel
Brittany Allen – CE, Elizabeth Jefferson – ENVE, Manda Schierbeek – ENVE, Merete Sørum – ENVE
Outline
• Background
• Data Collection
• Data Analysis
• Design Recommendations
• Cost Analysis and Construction Schedule
• Conclusion
Water tap in communityPhoto by Manda Schierbeek
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Assessment Trip to Panama
paradisehunter.com
Community Background
• Located in a mountainous region
• Ngöbe People
• 300‐400 People in Community
• Subsistence Farming
• Learn Spanish in School
Ngöbe girls in traditional dressesPhoto by Brittany Allen
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Project Objectives and Background
• Primary Objective– Design a sustainable way to provide theDesign a sustainable way to provide the
community with clean water
• Existing Systems– Old System
– New System
• Project Objectives– Improve Existing SystemImprove Existing System
– Expand System
– Educate People on
Use and Maintenance Storage tank for the new system in Cerro MielPhoto by Merete Sørum
Data Collection
• Survey and GPS
• Water Quality
• Water Availability
Photo by Manda Schierbeek
Team members doing water quality testing
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Data Analysis
• Google Earth Mapping
• Water Availability Analysis
• EPANET Modeling
Peña Blanca, near Cerro MielPhoto by Elizabeth Jefferson
Google Maps by Elizabeth JeffersonTotal Length of Pipe: 16 milesPipe in Community: 7 miles
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1000 ft
13 Existing Taps48 Proposed Taps9 Taps for Unbuilt Houses70 Total Taps
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Water Availability and Quality
• Old system
– Flow rate: 4 8 gal/minFlow rate: 4.8 gal/min
– Spring source
– Good quality
• New system:
– Flow rate: 50.7 gal/min
– River source
– Low quality
Photo by Elizabeth Jefferson
Stream in Cerro Miel
Water Treatment
• Slow Sand Filter
• Inline Chlorination
• Located in Tugri
• Suggested move to Cerro Miel
Photo by Elizabeth Jefferson
Slow sand filter in Tugri
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Water Usage
• Christopher Kingsley’s Survey
• Ministry of Health Estimation• Ministry of Health Estimation
• Distributed over the day
• 240 gal/day
min
)U
sage
(ga
l/m
EPANET Model
Model by Merete Sørum
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2000 ft
Figure by Elizabeth Jefferson and Merete Sørum
250 ft
Figure by Elizabeth Jefferson and Merete Sørum
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Pressure Release
• High elevation changes cause high pressures in
• Two options considered
– Mason‐Break Pressure
pipes Tanks
– HDP Pressure Tanks
goinsurancerates.com
Mason‐Break Pressure Tanks
• 3 Tanks Total
• Located within Cerro Miel
• Most Durable Option
Barefooteconomics.com
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Mason‐Break Pressure Tank
Drawing by Brittany Allen
HDP Pressure Tank
• Located by storage tank in Tugri
Drawing by Brittany Allen
Drawing by Brittany Allen
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Air Block
www.aplv.org
Air Release Design
Air Release Valve
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Air Release Valves
plastomatic.com asahi‐america.com
Air Release Locations
3550
3650
3150
3250
3350
3450
Elevation (ft)
Air Release LocationsLine 1
Line 2
Line 3
2850
2950
3050
0 2000 4000 6000 8000 10000 12000
Approximate Distance (ft)
Line 4
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Water Hammer
• Pressure increases from rapidly closing valve
Addi i l i b k• Additional pressure may cause pipe to break
maplesoft.com
Gully Crossings
Photo by Elizabeth Jefferson
Break in pipe between Tugri and Cerro Miel
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Suspension Bridges
Length of SpanLength of Span
Sag
Drawing by Manda Schierbeek
UV Protection
d d C i• UV Rays degrade PVC pipe
• Best Option:
Burying the pipe
• Alternative:
Painting the pipe g p p
drain‐experts.ca
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Cost Estimating
• Key Assumptions:• No Labor Cost
• Material Data• Bajo Salitre Cost
• No Equipment CostBajo Salitre Cost Estimate
• Online Quotes
Coinquest.com
Final Cost Estimate
Item Cost
Pi li Fitti V l 4350Pipeline, Fittings, Valves 4350
Pressure Release 535
Air Release 215
Gully Crossing Supports 1380
UV P i 440UV Protection 440
Transportation of Materials 930
Total: $7,850
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Construction Schedule
• Total time to construct: 105 Daysconstruct: 105 Days
• Key Assumptions
– Crew of 17 workers each day
– 0.5 mi of pipe can be laid per day
– RS Means Data Valid
Ngöbe women in traditional dressesPhoto by Elizabeth Jefferson
Conclusions• Met the community’s needs• Designed a sustainable, reliable, and
economical project S• Supplied tools to help community maintain their system
Photo by Mike Drewyor
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Acknowledgments
Christopher KingsleyChet Hopp
Dr. Dave Watkins Mike Drewyor (PE)
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Questions
Team in front of the Panama Canal Expansion SitePhoto by Rebecca Bender
