How We Work

The TriadES Approach to Site Characterization

We provide clients with the highest value for their site characterization budget. Using state of the art technology, TriadES provides clients with cost effective solutions to the most difficult site characterization challenges.

US EPA Triad Approach

The US EPA Triad Approach provides accurate characterization with significant cost and time savings.  This approach allows environmental decision uncertainty management with real-time data and on-site decision making.  By using the Triad Approach, the project manager is able to address the major uncertainty in environmental site characterization:  sample representativeness due to sub-surface heterogeneity.  

Dr. Davis, TriadES President, is an internationally recognized expert in the application of the Triad Approach including all phases of systematic planning, stake holder negotiation, work plan development, field execution, and final reporting.

TriadES Real-Time Data Collection

TriadES is the sole commercial vendor of Direct Sampling Ion Trap Mass Spectrometer (DSITMS) services, a real-time data acquisition system for volatile organic compounds (VOCs).   The DSITMS is ideal for the production of accurate, high density data sets with 3 minute sample analyses.

The DSITMS can be used as a compound specific detector for the GeoProbe Membrane Interface Probe (MIP).   The MIP is capable of producing very rapid, high density data set. The DSITMS combined with the MIP can quickly differentiate source areas from dissolved phase plumes.

In addition to VOCs, TriadES has developed a real-time DSITMS method for semi-volatile organic compounds (SVOCs) that is capable of detecting PAHs, chlorinated pesticides and PCBs.  Validation of this method is currently underway.

DSITMS Application to Dense Non-Aqueous Phase Liquid Investigation

TriadES is an industry leader in addressing complex sites, especially DNAPL source areas. TriadES succeeds where previous investigations have failed. Using the DSIMTS in combination with the GeoProbe MIP, TriadES has a proven ability to accurately mapping DNAPL sources and plumes that have often been under investigation for as long as decades.  Once the MIP and DSITMS have been used to map the source, discrete soil and GW sampling with on-site DSITMS analysis allows the TraidES team to accurately estimate the mass of DNAPL present in the subsurface.

Cost Effective Uncertainty Management for Site Decisions

The use of high resolution sampling and analysis allows TriadES investigators to address the largest uncertainty in environmental site characterization: sample representativeness due to sub-surface heterogeneity. Clients realize cost saving by completing site characterizations with a high degree of confidence in reduced mobilization cycles. Significant additional cost savings occur due to reduced life cycle costs for remediation based on TriadES characterizations.

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