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395070 - Home Made Well Siting Meter: alpha testing lessons and next steps, cheap wells for the majority world

Monday, June 4
10:30 AM - 12:00 PM
Location: Lake Superior B
Co-Authors: Eugene Lendzemo, Cameroon – AUCAM SARL

Groundwater extraction borehole wells are often the best choice for water supply in the majority world, but are usually too expensive for families, farmers and small organizations to dig. Powerful geophysical instruments are available, but the cost for these meters can range from $6,000 to $40,000, not including additional thousands in training, making them unavailable to many local technicians and small Non-Governmental Organizations (NGOs) who work to provide water for low-income clients. The problem of an increasing demand for groundwater, coupled with the excessive cost of geophysical technology creates a need for an open-source, inexpensive geophysical meter that can be widely distributed to trained personnel in developing countries. To this end, our group is working to develop a simple resistivity, seismic and induced polarization meter for less than $1000 that accurately pictures the geophysical environment, and to provide free online instructions for building and using the meter, such that local technicians and organizations can replicate and advance our work. The ultimate impact will be to make successful well drilling for water supply more affordable for all. This paper summarizes the work to date and steps forward to construct and use this open source well siting meter. Version 1, an analog resistivity meter, has been built three times and tested in Colorado, Texas, Illinois and Kenya, with several lessons learned as we begin our development of Version 2.

Joshua Nathanial Knight, PhD PE

Program engineer
Global Hope Network International

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