CGRS began in 1987 as an environmental consulting company, providing industry- and regulatory-compliance expertise and services to owners and operators in the upstream and downstream petroleum industry. Over time we have diversified to meet the ever-changing customer needs by becoming experts in the markets of Environmental Services, Liquid and CNG Fueling, Oil & Gas, and Water and Wastewater.

As an environmental consulting company, our expertise is multifaceted: we have subject matter experts in diverse yet synergistic areas, and are truly a one-stop shop for our customers.

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Construction Report

CGRS provides a wide array of construction services including design-build services for compressed natural gas stations (CNG), renewable natural gas (RNG) facilities, and water and wastewater treatment facilities, as well as installation of bulk refined fuel facilities at airports, truck stops, convenience stores and gas stations.

Cng Report

CGRS designs and builds as well as provides service/maintenance to compressed natural gas (CNG) facilities and stations for the private and public sectors throughout the Rocky Mountain region and beyond. We are also a respected CNG leader and a Registered Service Agent for certifying CNG dispensers under the Colorado Division of Oil and Public Safety (OPS) Weights and Measures Office.

Design-Build Report

Collaboration between designer/engineer, contractor, and owner results in the best value and has the highest success rate for any construction project. CGRS's highly experienced team of engineers and construction project managers collaborate with our customers to bring projects to fruition from concept to finished product.

Refined Fuel Report

CGRS provides a variety of design-build services for the refined-fuel industry including installation of bulk-fuel facilities at airports, truck stops, convenience stores and gas stations as well as compressed natural gas (CNG) stations. If you're an entrepreneur starting from the ground up or seeking to expand your current locations, you've come to the right place. When you hire CGRS, you get experts who understand the specialized and increasingly regulated process of fuel system design and construction.

Mary Williams

Dec 16, 2021

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Employees with this company smoking weed and driving construction equipment at a construction site near my house.

George Kosidowski

Jan 30, 2021

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Critical: Professionalism, Quality Worst experience with a contractor in all my years in this industry. Employees were unprofessional and the work that they performed was poor quality. This company is very expensive to work with and does not perform. Save yourself some money and look elsewhere.

Mark Ward

Nov 30, 2020

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CGRS is a safe and honest company that delivers high quality service offerings.

Sandra Ingrassia

Dec 31, 2019

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Terrific group of people with extensive knowledge. Any one of them will drop what they're doing to answer questions. They provided UST A/B training to me. I learned a ton of new stuff!

Brannan Davis

Dec 09, 2019

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The best consulting/construction company this side of the Mississippi!