GSI Environmental Marks 40 Years of Making Science Count
PRESS RELEASE [July 2026] GSI Environmental Marks 40 Years of Making Science Count Since 1986, GSI has helped clients solve complex environmental...
PRESS RELEASE [July 2026] GSI Environmental Marks 40 Years of Making Science Count Since 1986, GSI has helped clients solve complex environmental...
PRESS RELEASE
[July 2026]
GSI Environmental Marks 40 Years of Making Science Count
Since 1986, GSI has helped clients solve complex environmental challenges through science, innovation, and collaboration.
Houston, Texas — GSI Environmental Inc. is marking 40 years of solving complex environmental problems through rigorous science, leading-edge research, practical know-how, and thoughtful collaboration.
Since 1986, GSI has partnered with clients to solve environmental challenges that shape projects, industries, and communities. What began as a two-person company has grown into a multidisciplinary environmental engineering and science consulting firm with offices across the country and project work reaching nearly every continent and more than 40 countries around the globe.
For four decades, GSI has helped clients measure, analyze, and solve complex environmental problems across industrial operations, property development, toxicological analysis, chemical hazard management, water resources, environmental compliance, litigation support, sustainability, carbon management, and natural resource management. The firm’s work includes practical solutions for environmentally sound industrial operations and property development, sustainable development of water and other natural resources, and protection of aquifers, rivers, bays, and estuaries.
“Reaching 40 years is an important milestone, but what makes it meaningful is the work behind it,” said Travis McGuire, PE, President of GSI Environmental. “GSI was built by people who care deeply about the science, the client, and the outcome. Over the years, that commitment has allowed us to contribute to projects that matter, build trusted relationships, and continue growing without losing sight of why this company was started.”
Throughout its history, GSI has contributed to milestone and iconic projects that reflect the firm’s ability to bring clarity to complex environmental questions. Its diverse team of engineers and scientists includes recognized leaders in environmental engineering, applied science, risk management, toxicology, regulatory affairs, modeling, and water resources. GSI is also active in applied research on a broad range of environmental and natural resource issues and provides training for professionals throughout the industry on emerging challenges related to the protection of human health and the environment.
The anniversary also reflects the people and partnerships that have shaped GSI’s work. Clients, employees, and partners have played an essential role in the firm’s growth, contributing to a shared commitment to sound science, practical insight, and solutions designed to stand the test of time.
As part of this milestone year, GSI is also partnering with Engineers Without Borders USA to support a critical water project in Peru. The project will help improve water storage and reliability for the Q’ero Anexo Chua Chua community in the high Andes, where families depend on water for agriculture, livestock, and daily life. The initiative reflects GSI’s broader commitment to applying engineering and science in ways that create meaningful, lasting impact.
“Making science count has always been more than a tagline,” McGuire said. “It is how we approach our work. It means using science to answer difficult questions, support responsible decisions, and help solve problems that affect people, communities, and the environment. As we look ahead, that purpose remains at the center of who we are.”
As GSI enters its next chapter, the firm remains focused on the same purpose that started it all: delivering sound science, thoughtful collaboration, and practical solutions for environmental challenges that matter.
About GSI Environmental Inc.
GSI Environmental Inc. (GSI) is an engineering and environmental science consulting firm committed to investigating, analyzing, and solving complex environmental problems around the globe. Our work ranges from practical solutions for environmentally sound industrial operations and property development to toxicological analysis and management of chemical hazards, sustainable development of water and other natural resources, and protection of our rivers, bays, and estuaries. Our staff combines practical know-how with leading-edge research to deliver timely, innovative, and focused solutions to your environmental challenges.
Learn more at www.gsienv.com.

GSI is honored to be ranked #9 on Zweig Group’s 2026 Hot Firm List, earning a spot among the top 10 fastest-growing AEC...
GSI is honored to be ranked #9 on Zweig Group’s 2026 Hot Firm List, earning a spot among the top 10 fastest-growing AEC firms in the U.S. and Canada.
This marks GSI’s third consecutive year on the list, moving up 16 spots from last year. Reaching the top 10 is an exciting milestone and a reflection of the incredible work of our team, the trust of our clients, and the continued momentum we are building together.
The Hot Firm List ranks firms based on a combined score of percentage and dollar revenue growth over a three-year period, recognizing firms that are setting the pace through strategic growth, operational excellence, and innovation.
View the full list here: https://zweiglist.com/hot-firm/

Congratulations to Dr. Gino Bianchi Mosquera, PG, BCES, on the publication of "Facilitated Transport of Organic Contaminants in a High Concentration, Multicomponent Plume," in...
Congratulations to Dr. Gino Bianchi Mosquera, PG, BCES, on the publication of “Facilitated Transport of Organic Contaminants in a High Concentration, Multicomponent Plume,” in Groundwater Monitoring & Remediation.
This open access article, co-authored with D. M. Mackay, B. Myller, B. D. Honeyman, M. Schirmer, R. M. Allen-King, W. P. Ball and R. L. Stollar, presents findings from a field experiment at the Rocky Mountain Arsenal evaluating organic contaminant transport within a complex plume. The study provides new insight into why contaminants may migrate with little to no sorptive retardation in situ and identifies the need for additional laboratory research to better understand the plume components that influence sorption and mobility.
Read the full open access article here: https://ngwa.onlinelibrary.wiley.com/doi/10.1111/gwmr.70028

Big News for Texas Carbon Capture and Storage (CCS) Projects: The EPA has officially granted the Railroad Commission of Texas (RRC) UIC...
Big News for Texas Carbon Capture and Storage (CCS) Projects:
The EPA has officially granted the Railroad Commission of Texas (RRC) UIC Class VI primacy, giving the state primary authority over Class VI CO₂ injection wells starting December 15, 2025.
Why this Matters:
Texas CCS developers can expect more streamlined UIC Class VI permitting and effective stakeholder and agency engagement. With 18 applications already under review, and many more coming, this shift is a major step toward accelerating commercial-scale CO₂ storage projects across the state.
Combined with enhanced federal IRS 45Q tax credits, suitable geology, and existing infrastructure, Texas is now positioned as one of the most competitive jurisdictions in the U.S. for CCS development.
GSI has supported UIC Class VI projects nationwide with:
✔ Site screening and geologic/hydrogeologic characterization
✔ Class VI permit preparation and regulator-ready submittals
✔ Multi-phase reservoir modeling
✔ Practical and cost-effective testing and monitoring plan design and implementation
✔ Stakeholder and agency engagement
✔ Detailed artificial penetration review and Corrective Action Plan design
✔ Water resource assessments
✔ Alignment with IRS 45Q, LCFS, and EPA GHG reporting requirements
We support clients with strong, regulator-ready applications that keep projects moving efficiently from feasibility through permitting and operation. Reach out to learn how GSI can support your Class VI project.
Curious how each state stacks up across the U.S.? Check out GSI’s free RegReady Map Tool, which scores all 50 states across 14 CCS-related regulatory factors—including UIC Class VI Primacy. https://www.gsienv.com/software/other-models-and-tools/regready-map-tool/
For questions, please contact Danny Kingham at dbkingham@gsienv.com.

Lisa Molofsky, PhD, PG has co-authored a new article titled "A combined 228Ra/226Ra and 87Sr/86Sr approach to identify the production of out-of-zone formation...
Lisa Molofsky, PhD, PG has co-authored a new article titled “A combined 228Ra/226Ra and 87Sr/86Sr approach to identify the production of out-of-zone formation fluid from Marcellus shale gas wells,” published in Applied Geochemistry.
This article, co-authored with M.A. Engle, T.W. Wagner, A.S. Wylie, and D.P. Fernandez, presents a geochemical method that combines radium and strontium isotope ratios to determine the origin of high-salinity fluids produced from Marcellus shale gas wells. The study provides valuable insights into identifying out-of-zone water production and offers a framework that could be applied to other oil and gas basins.
Read the full paper here: https://www.sciencedirect.com/science/article/pii/S0883292725002938?dgcid=author