Great Plains Analytical Services, Inc or G.A.S is a family owned and operated environmental leader in the natural gas industry. We have been in business since 1999, providing quality emission testing and expert service that meets all of our customers needs.

Our streamlined approach and top of the line equipment allows us the scheduling flexibility required in the emissions testing field.  We have decades of experience and nationwide capabilities. We are always available to discuss our services and how we can best serve your emission testing needs.

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