Gradient

Senior Scientists

Meghna H. Swamy, M.S.
Email VCard Bio

Education

M.S., Environmental Engineering & Science, Clemson University

B.S., Microbiology, Bangalore University, India

Expertise

  • Contaminant Fate & Transport
  • NAPL Transport
  • Remedial Investigation & Design
  • Risk-based Remediation

Meghna H. Swamy, M.S.

Senior Environmental Engineer

Email VCard Bio

Ms. Swamy is a senior environmental engineer, with over 12 years of experience specializing in contaminant fate and transport, NAPL transport, remedial investigation and design, and risk-based corrective action.  She has provided technical expertise, litigation support, and oversight on numerous multidisciplinary projects at pharmaceutical facilities, manufacturing plants, MGP sites, and Superfund sites based both in the US and abroad.  In particular, she has extensive experience leading investigations, risk assessments and remedial actions at  hazardous waste sites in South America and the Asia-Pacific region.  In her previous consulting positions, Ms. Swamy specialized in research, development, and application of innovative remedial technologies at hazardous waste sites contaminated with petroleum hydrocarbons, chlorinated solvents, and explosive compounds.

Education

M.S., Environmental Engineering & Science, Clemson University

B.S., Microbiology, Bangalore University, India

Expertise

  • Contaminant Fate & Transport
  • NAPL Transport
  • Remedial Investigation & Design
  • Risk-based Remediation

Services

Representative Projects

Contaminant Fate and Transport:  Evaluated the fate and transport of pine tar DNAPL and creosote DNAPL in an interbedded unconsolidated deposit aquifer system at a Superfund site in Florida.  Managed the remedial investigation and design efforts to address the pine tar contamination in groundwater, surface water, and sediments.

Contaminant Fate and Transport:  Evaluated distribution and transport of DNAPL in stream sediments and floodplains at a Superfund site to determine whether DNAPL observed in a previously remediated area was the result of residual contamination or an ongoing release from a failed source control measure.  Performed an assessment of the source remedy and developed an alternate remedial approach to address the source contamination.

Risk-Based Remediation, India:  Developed risk-based cleanup goals and a remedial strategy to address petroleum feedstock impacted soil and groundwater at a former manufacturing facility in India.  Managed remedy implementation and site closure efforts.

Remedy Design and Optimization, Argentina:  Developed the conceptual design of a dual-phase extraction system focused on the remediation of volatile organic compounds  in soil and groundwater at a site in Argentina.  Provided remedy implementation and performance assessment oversight.

Remedy Design and Optimization, Brazil:  Managed conceptual design, full-scale operation, and performance assessment of multiple remedial systems, including a soil vapor extraction system, dual-phase extraction, and a pump and treat system, at chemical plants in Brazil.  Compounds of concern included petroleum hydrocarbons and chlorinated solvents.

Vapor Intrusion Modeling:  Performed site-specific vapor intrusion modeling using the Johnson-Ettinger model as part of a risk assessment for a former industrial facility contaminated with VOCs, petroleum hydrocarbons, and metals. 

Remedy Cost Estimation:  Critiqued environmental liability costs associated with a US EPA-led time critical removal action for a former MGP site.  Proposed an alternate approach for the site and developed a range of cost estimates for the proposed remedial actions.

Selected Publications

Swamy, M.  2014. "Developing cleanup criteria in the absence of regulations." Gradient Trends - Risk Science & Application 59 : 3,5.

Swamy, M.  2013. "Risk-Based Remediation and Closure of a Petroleum Feedstock Affected Site in India." Presented at the Battelle Symposium on Bioremediation and Sustainable Environmental Technologies, 19p.

Freedman, DL; Swamy, M; Bell, NC; Verce, MF.  2004. "Biodegradation of chloromethane by Pseudomonas aeruginosa strain NB1 under nitrate- reducing and aerobic conditions." Appl. Environ. Microbiol. 70 : 4629-4634.