Please use this identifier to cite or link to this item: http://hdl.handle.net/10125/61964

Time domain electromagnetic surveys for assisting in determining the groundwater resources on property located in the South Kona district, below Kealakekua, Hawaii

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Item Summary

Title:Time domain electromagnetic surveys for assisting in determining the groundwater resources on property located in the South Kona district, below Kealakekua, Hawaii
Authors:Nance, Tom
Keywords:groundwater
TDEM
Kealakekua
Kona
Kohala
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Hawaii
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LC Subject Headings:Geology--Hawaii
Groundwater--Hawaii
Water-supply--Hawaii
Geology
Groundwater
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Date Issued:Oct 2014
Publisher:Blackhawk Geosciences, Inc.
Tom Nance Water Resource Engineering
Abstract:"This report contains the procedures and results of a surface Time Domain Electromagnetic (TDEM) geophysical survey performed for groundwater resource evaluation on property located in the South Kona District west of the town of Kealakekua, Hawaii. The project site included property located between the Mamalahoa Bypass Road and the Clarence Lum Won Park. Zapata Incorporated (ZAPATA) performed the survey for 1250 Oceanside, LLC (OSLLC) and Tom Nance Water Resource Engineering (TNWRE) on October 14 and 15, 2014.
The main objective of the TDEM survey was to determine if basal or high-level groundwater underlies a proposed well site on the property. The survey was conducted at one TDEM sounding site to help determine the location for a future groundwater well.
TDEM is a geophysical method that determines from TDEM is a geophysical method that determines from the surface the geoelectric section (resistivity layering) of the subsurface. From the geoelectric section, information about geology and water quality can be inferred. This is possible because the electrical resistivity of the earth depends on lithology, porosity, degree of saturation, and concentration of dissolved solids in the groundwater. Geophysical surveys, combined with other hydrogeologic information, are used to provide optimum locations for water well placement and well completion depths."
Pages/Duration:50 pages
URI:http://hdl.handle.net/10125/61964
Appears in Collections: Big Island
Tom Nance Water Resource Engineering


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