SERVICES

VERTEX has Experts that Talk the Talk and Walk the Walk.

Unlike others, VERTEX provides forensic consulting alongside traditional AEC services which allows for a 360 degree view of your project.

VERTEX Services

Experts

Need an expert for your case?

Our forensics experts work alongside AEC specialists which enhances our skills and bolsters the credibility of our expert consultants.

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Portfolio

VERTEX delivers innovative solutions on complex projects globally.

Since 1995, VERTEX has completed over 90,000 projects.

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INSIGHTS

VERTEX believes in a Lifetime of Learning philosophy.

Stay current with our industry experts as they share their insights and knowledge on the built environment.

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VERTEX is looking for talented individuals to join a highly technical team of forensic consultants, design engineers, construction managers, and environmental scientists.

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Contact Us

Have a question or want to speak with a technical professional?

VERTEX is a multi-discipline firm with global coverage. Our international network of resources enables us to provide multi-national clients with the most qualified local professionals who understand the culture, language, and regulatory framework.

Call Us: 888.298.5162

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Call us at 888.298.5162.

Retail Gas Station Remedial Investigation/FeasibilityStudy and In-Situ Site Remediation

VERTEX conducted a Remedial Investigation/Feasibility Study (RI/FS) at the Site in 2018 – 2019 under a Pollution Liability Insurance Agency (PLIA) grant. The purpose of the RI was to characterize the extent of soil and groundwater contamination identified in a 2017 environmental site assessment. The RI characterized soil, groundwater, and soil vapor. The Site’s contaminants of concern (COCs) included gasoline range petroleum hydrocarbons (GRO), benzene, toluene, ethylbenzene, and xylenes (BTEX), and naphthalenes.

The Site was enrolled in the Technical Assistance Program (TAP), PLIA’s voluntary cleanup program. Following its review of the RI/FS, PLIA issued an opinion letter on January 6, 2020, that noted 1) a cleanup action of soil and groundwater was necessary to achieve regulatory compliance, and 2) the downgradient extent of the groundwater contaminant plume was not defined towards the west-southwest in the City of Kelso’s right-of-way (ROW). VERTEX subsequently completed a supplemental soil, soil gas, and groundwater investigation in the winter of 2022. Based on this data,

VERTEX evaluated remedial options and selected in-situ chemical oxidation (ISCO) and plume stabilization reagents to clean up soil and groundwater contamination at the site. VERTEX implemented the in-situ cleanup as an interim action on behalf of the Client that included baseline groundwater sampling, oversight of four (4) injection events, and performance groundwater sampling after the final ISCO treatment. VERTEX prepared an interim action report that provided a narrative description of the cleanup, and soil and groundwater data. In addition, the interim action report included an evaluation of the performance monitoring data and recommendations for future actions. The interim action report documented that the in-situ cleanup action significantly reduced contaminant concentrations in soil and succeeded in meeting groundwater cleanup criteria.

To learn more about VERTEX’s Environmental services or to speak with an Expert, call 888.298.5162 or submit an inquiry.

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