| Statement
of Qualifications |
| Grant G. Gikas, the founding member of NSIS has a B.S. in Petroleum
Engineering. His experience includes: 20 years of geosciences work and
education; the use and interpretation of geophysical logging tools; 11
years of environmental geo-technical engineering assessment and remediation
experience, including 6 years of residential environmental remediation
oversight and adjustment for homeowner insurance carriers. He is a certified
subsurface evaluator with certifications in utility locating and operating
ground penetrating radar. |
| How
do the tools work? |
| The geophysical tools used measure the earth’s electrical properties,
magnetic properties and responses to radio frequency waves. When buried
objects have electrical properties different than the surrounding ground,
they can be located. |
| What
are the advantages of using non-destructive subsurface imaging tools? |
|
The non-destructive and real-time nature of the
equipment used can save both time and money. Within a relatively short
period of time, areas of concern, targets for further assessment and buried
obstacles can be found without digging. The tools can quickly be mobilized
to your site where the real-time information obtained allows you to make
immediate informed decisions.
|
| How deep
do the tools see? |
|
The maximum depth subsurface imaging tools can locate
depends on the type of tool used and the composition of the ground. NSIS
uses a GPR with a 500 KHz antenna. In general, objects and conditions up
to 3 to 6 feet deep can be assessed.
|
| What can
subsurface imaging tools do? |
|
The subsurface imaging tools sees through dirt,
rock, concrete, asphalt or wood to locate metallic or non-metallic:
-
tanks, drums, pits, wells
-
septic systems
-
foundations
-
grave sites
-
landfills
-
environmental areas of concern
-
drilling and sampling locations
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utilities, pipes, cables, conduit
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vaults, bunkers, tunnels
-
caches of contraband, artifacts
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concrete re-enforcing steel rebar, wire mesh and tension cables
-
rocks, boulders and other buried or hidden objects
The tools assess unseen conditions under the earth
-- roads, parking lots, runways, and concrete slabs. It will find:
-
voids, washouts, sinkholes
-
thickness and integrity of concrete
-
thickness of over burden soil
-
depth to shallow ground water
-
depth to shallow bedrock
-
location of disturbed soil or fill
-
geologic faults and fractures
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| Back to top |
| Who
might need subsurface imaging services? |
Potential clients and other interested parties include:
-
real estate buyers of residential and commercial properties as well as
their real estate agents and attorneys
-
environmental consultants, geologists and environmental remediation contractors
-
clients of attorneys involved with real estate, environmental or litigation
cases
-
civil, geological and structural engineers, construction companies
-
scientific research institutes, archeologists, cemeteries
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law enforcement, fire and rescue officials
-
insurance companies, banks and
-
treasure hunters
|
How much
does it cost to have a subsurface survey completed?
The cost of an NSIS inspection depends on the level of service, the
scope of the summary report and the amount of time spent at the job site.
The price includes our travel time to and from the site.
A normal residential subsurface inspection (up to 1/4 acre) using state-of-the-art
metal detection and ground penetrating radar equipment will cost $375 on
the day of service. A full report is available within 1 to 3 days of inspection.
The costs for contractors of commercial projects are based on the time
and materials needed to complete the project objectives. Contact NSIS for
Schedule of commercial pricing at E-mail
or call Grant at 888-800-NSIS to discuss your job requirements and receive
a written cost estimate proposal.
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