James has practical experience designing and implementing in situ remedies for chlorinated solvent DNAPL sites, investigating manufactured gas plant DNAPL sites, and providing support for legacy sediment sites. He has provided critical technical and management support for complex, multiparty investigations, with a focus on the Portland Harbor Superfund site over the last two decades. His work on environmental forensics has expanded his practice to supporting cost allocation and environmental litigation.
To advance the state of the practice, James identifies and implements developing and innovative technologies to improve the effectiveness and efficiency of soil, groundwater, and sediment remediation. He served as project director and principal hydrogeologist for the design and implementation of the largest zero-valent iron-enhanced bioremediation of TCE DNAPL in the Pacific Northwest. At that site, he also integrated a large-scale data set combining chlorinated solvent concentrations and polymerase chain reaction (PCR) data to characterize changes in subsurface microbial communities over a nine-year monitoring period. Over 4,000 unique species were suggested by the data, and dehalogenation activity by previously-unidentified bacteria was correlated with population changes. James has also evaluated data and promoted the development of enhanced broad-spectrum photo-oxidation of contaminated waters. Mr. Peale is recognized as a regional expert in chlorinated site characterization and remediation and is regularly invited to present at national and international conferences.