Environmental Technical and Remediation Services

Technical services

Environmental Technical and Remediation Services

JJ&A engineers and scientists have successfully designed and implemented site characterization and remediation strategies at sites throughout the western United States. We have broad experience in developing and applying characterization and remedial approaches for sites with a wide range of contaminants including: metals, chlorinated volatile organic compounds (CVOCs), petroleum compounds, polynuclear aromatic hydrocarbons (PAHs), pesticides/herbicides, polychlorinated biphenyls (PCBs) and salts. Our strong technical knowledge of both traditional and innovative remedial technologies and knowledge of federal and state regulations allows us to develop successful environmental solutions.

We support our clients in cost effectively achieving regulatory compliance by forming goal driven project teams, based on the regulatory framework applicable to the project and the site specific technical challenges.  We develop technical and regulatory team consensus by using conceptual site models to identify data gaps and develop technical strategies within the context of the project’s regulatory framework. JJ&A’s focus on understanding site conditions within the regulatory framework simplifies the data collection phases for characterization and feasibility studies.

JJ&A’s site characterization philosophy reflects a weight of evidence approach and is considerate of the triad process. Field programs are designed with an emphasis on real-time data collection and agency approved logic based decision frameworks. We have used this method successfully to minimize costs and schedule impacts and to develop technically sound data to support risk evaluations and remedial technology evaluation and selection.

JJ&A staff have experience with characterizing environmental settings and the nature and extent of impacts, including expertise in surface water, ground water, soil, sediment and air sampling and analysis techniques.  JJ&A’s characterization services address the various aspects of site characterization, including:

  • ecological settings, including sensitive habitats and species;
  • hydrogeologic settings;
  • background conditions;
  • nature and extent of contamination including delineation of source and attenuation zones;
  • soil vapor/indoor air conditions;
  • contaminant fate and transport processes including contaminant migration and natural attenuation; and
  • groundwater age dating (CFCs, SF6).

JJ&A’s remediation focus is on sustainable options integrated with the project’s environmental setting. As such, our focus is on evaluating options for in situ remedies that meet future land use goals, provide a beneficial reuse of the site and minimize environmental impacts during remedy implementation. This approach is grounded within our regulatory framework based style and JJ&A has demonstrated success at effectively facilitating remedy implementation with the regulatory agencies and local communities. JJ&A staff have experience with the following sustainable remedial technologies which are most frequently applied as one aspect of an integrated remediation approach:

  • In situ and ex situ soil stabilization;
  • Ex situ soil bioremediation with on-site or off-site reuse;
  • In situ soil and groundwater treatment including oxidants and reductants;
  • In situ groundwater enhanced natural bioremediation;
  • In situ soil vapor extraction;
  • In situ dual phase extraction;
  • Monitored natural attenuation for both organic (chlorinates) and inorganic compounds (heavy metals and salts) in groundwater; and
  • Monitored natural recovery for organic and inorganic compounds  in sediments.

Customer Quotes

"The report describes the results of an extensive investigation, which was primarily conducted for real estate transfer purposes, that assessed potential environmental concerns with the approximately 135-acre site… The report summarized the findings of a very thorough assessment and presented a large amount of data that was collected over many years of work at the site. The report was well written and organized in which the data were interpreted and conclusions and recommendations were clearly presented. [Agency] Staff has no specific comments other than to concur with the conclusions and recommendations as presented in the report."

"...to the project team that best exemplifies our vision and values...with excellent execution, in a way that enhances the community and creates value." ER Department Award of Excellence

"Communication with JJ&A continues be he first rate, even after the company has grown to include several new project managers and support personnel."

"I have no doubt that JJ&A's management of the project will result in successful completion of the planned scope."

"JJ&A has excelled in managing safe projects, making safety the number one priority for its employees and all subcontractors."

"...the outstanding job you have done in taking steps to look for saving opportunities, within and outside of your organization...resulted in avoided costs of $136K. It is this continued outstanding behavior which will set an example for some of our other suppliers...to drive unnecessary costs and inefficiency out of our projects."


Representative Projects