Eugene, Oregon (corporate)

Portland, Oregon

Seattle, Washington

Medford, Oregon

Las Vegas, Nevada

Eugene, Oregon (corporate): 541-345-1075
Portland, Oregon: 541-255-8780
Seattle, Washington: 541-228-6851
Medford, Oregon: 541-228-6851
Las Vegas, Nevada: 702-240-3046

geological investigation

Geological Investigation

On December 3rd, torrential rains and an inadequate stormwater system combined to undermine the pavement on a portion of Bethel Avenue and an adjacent parking lot. The result was a sinkhole about 50 feet long, 20 feet wide and 30 feet deep. Fortunately, no one was injured when the hole opened. – Kitsap Sun online editorial

GPR Data Inc. was called in to investigate this sinkhole in December 2007, but what we discovered was not what anyone expected. The sinkhole had been completely attributed to raw volume of water traveling through a drainage pipe. However, upon geological investigation with ground penetrating radar, we determined that three underground storage tanks had been buried and forgotten, in close poximity to the sinkhole. At least one of the tank walls had been destroyed by electrolysis, creating an open void which allowed sub-surface evacuation of the subgrade structure.

GPR Data’s geological investigation discovered additional contributing factors to this incident, helping to resolve the existing situation and prevent future occurances which otherwise would have been overlooked.

GPR Data Inc. provides antennas ranging from 100 to 1000 MHz to cover all of your geological investigation needs. With this line-up we can provide high-precision data at any depth from a few feet to 30 meters in most conditions. Our ultra low frequency 100 MHz high-power antenna is unique among GPR service providers. Coupled with our unparalleled experience at operating and analyzing data, we do the jobs that others can’t.

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