Engineers Without Borders

Project Meeting Minutes, February 18, 2008

February 25, 2008 at 6:02 pm | In Meeting Minutes | Comments Off

Main Meeting Agenda

• News/ Announcements
• Update from PCV
• Group Breakout
  • Mapping/ Health: Kelly Kibbler
  • Design: Carl Moen
  • Presentation for Board: Aparna
  • Reply to PVC: Alfonso

• Progress Report From Groups

  

Project Meeting

PCV- Has gone on vacation for the week, and no answers have been received from him. Still waiting for answers from last week

 

Orifice- Dan Horner

• Depth of pipes minimum cover is 30 in. can be reduce to 24 in. for private These are Oregon Values. Good for 8in diameter.
• Dan’s father has information if more is needed.
• Depth for burial could be based upon frost
• Conduit considered for underneath the road.
• ¾ in. pipe being considered for pipe.

 

Pressure issues

• 55 gallon drum could be used to remove head. Could be used as pressure break. Open to air will depressurize system.
• Closest source is 70m above the outlet. Decreased pipe size will reduce head through friction

 

Carl created an idea for the tank by the village in solid works

• Possible changes
  • Raising the spigot above ground level
  • Needs to be 1.5 ft above the ground for water collection

 

Cost estimate

• Already established, expect modifications closer to implementation
• Use information from last trip, communication with PCV, and Home Depot her in Corvallis
• Carl is sending Kelly an email with cost estimates
• Rough estimate, cost is assumed to be similar compared to HD in Corvallis based upon pervious trips
• Possible trial in Corvallis

 

Wahaka pictures

• Similar topography, and climate
• Corn raised fro subsidence
• Dug a big hole
  • Dark grey soils, hydric soils means full saturated throughout the year

• Used PVC pipe to step down diameter of pipe
• Hole can be used to find the water table
• Horizontal wells were used
• Screen slots were used (PVC pipe with hack saw grates cut into)
• Course clean gravel and sand placed over the grated pvc pipe
  • Course sand on the bottom finer sand on top.
• Used a sifter to separate sand into fine and course
• ¾ in pipe was used, previous storage tank was used
• Collection pipes were not covered, water was left standing above
  • No issues with the water in this case
  • This water is being used mainly for drinking

           

           

Alfanso: PCV Communication

• Los plattios is not a problem to use
• Rotary information for San Salvador from Aparna
• Wants rain water catchment system for this trip
• Need paper filled out for Ministry of the Environment
• Springs look very dry