Locus Technologies is the industry leader and pioneer in vapor intrusion studies. In 2005, Locus sponsored and co-chaired a Groundwater Resources Association (GRA) conference on the topic of Subsurface Intrusion to Indoor Air (www.grac.org).
Locus authored three presentations at the GRA conference, which are available at the following links:
- Using Converging Lines of Evidence to Evaluate Subsurface-to-Outdoor Air Pathway by Elie Haddad, P.E., Vice President, Locus Technologies, Melanie Edwards, Exponent, Inc., and Stan Smucker, U.S. Environmental Protection Agency
- Evaluating Vapor Intrusion at a Bay Area School by John Wesley Hawthorne, P.E., Project Manager, Locus Technologies
- Investigating and Mitigation of Vapor Instrusion at a Superfund Site: Case Study by Elie Haddad, P.E., and Jessica Ramirez, Locus Technologies
Locus' Philosophy: Optimized Solutions
The “study to death” syndrome plaguing many hazardous waste sites fails to recognize that uncertainty will always exist in the analysis of vapor intrusion. Because uncertainty can never be eliminated, Locus has adopted an observational approach that uses data quality objectives to optimize the data collection process by characterizing the most likely set of site conditions, as well as any reasonable deviations.
Vapor Intrusion: We Understand the Problem
Locus provides tools designed to investigate and assess vapor intrusion and evaluate risks that this pathway presents to human health. Locus implements risk-based corrective action and recognizes the reality that some sites pose a lesser risk to human health and the environment than pre-supposed by strict numeric standards or screening levels that are based on worst-case scenarios. Locus offers an experienced, multi-disciplinary professional staff to assist with vapor intrusion from investigation to remediation and monitoring. Our team of toxicologists, environmental and civil engineers, and risk assessors offer expertise in services, such as:
- Vapor intrusion investigation
- Quantitative health and environmental risk assessments
- Abatement and mitigation
- Public meetings
Litigation Support
Another challenge posed with addressing vapor intrusion is the participation of several interested parties that may provide input to the process. Locus has developed managerial approaches to streamline the often-conflicting objectives of these groups. In several cases, Locus has acted as the central recipient of information. While keeping close contact with the client and its representatives, this approach proved to reduce the client's overhead costs while, at the same time, arriving to a remedial solution acceptable to all parties involved.