GSI Environmental designs and operates NAPL recovery systems; integrates NAPL management into RBCA and natural attenuation approaches to prevent unneeded NAPL recovery. GSI Environmental understands and communicates how NAPL affects corrective action processes at RCRA, CERCLA, UST, and Voluntary corrective action sites.

Representative Experience:

NAPL Recovery: Designed, installed, and operated DNAPL and LNAPL recovery systems at a variety of sites using downhole pumps, bioslurping systems, combined fluids, and other recovery technologies.

NAPL Pollcies: Worked with TCEQ to help develop NAPL remediation policies in current Texas Risk Reduction Program.

U.S. EPA Publications: Served as lead author of two key USEPA NAPL publications: The Potential for DNAPL Occurrence Fact Sheet, and LNAPL Issue Paper.

U.S. EPA Seminars: Selected by USEPA to present DNAPL remediation technologies as part of USEPA's 10-city DNAPL seminar series.

Short Courses: Conceived, developed and presented Gulf Coast Hazardous Research Center (HSRC) short course on NAPL management.

Books: Selected to write NAPL/source chapters for two groundwater textbooks

Software: Now developing Source Lifetime Estimation software dealing wtih NAPL dissolution for U.S. Air Force.

GSI knows theory, regulations, engineering, and management of NAPL at hazardous waste sites.