Example Projects

Example Projects – United States

Contaminant State Services
Lead MN Provided reagents to reduce TCLP-lead concentrations in soil at a skeet firing range.
Lead IL Performed a treatability study to evaluate multiple reagents for TCLP-lead reduction at a shooting range with and without removal of shot.
Lead MD Turnkey implementation of remedy to reduce leachable lead concentrations.  Soil remained in place after treatment.  Treatability study determined appropriate chemistry and remedy design for site soil prior to mobilization.
Arsenic MN Performed a treatability study to evaluate multiple reagents for arsenic reduction in both the TCLP and SPLP at a former pesticide manufacturing facility.
Arsenic NJ Performed a treatability study to evaluate multiple reagents for arsenic reduction in both the TCLP and SPLP at a former fertilizer manufacturing facility.
Arsenic and Lead SC Provided treatability study services and implementation support to render arsenic and lead non-hazardous.  Reagents were added in situ, and performance was measured on-site.
Antimony TX Evaluated reuse options of slag material during a treatability study.
Chromium IN Provided treatability study, remedy design, and implementation of hexavalent chromium stabilization in soil and groundwater.
Zinc DE Provided treatability study, remedial design, and implementation support for installation of a permeable reactive barrier to reduce zinc concentrations in order to achieve surface water discharge criteria.
Multiple Metals NJ Provided treatability study at bench and pilot scale, and remedial design support for a permeable reactive barrier to reduce groundwater concentrations below site-specific discharge limits.  Metals included:  Antimony, Arsenic, Cadmium, Copper, Lead, Nickel, Selenium, and Zinc.
Petroleum hydrocarbons NY Assumed liability for closure of two gas station facilities.  Completed remedial design and implemented a remedial action plan.  Achieved site closure.
Chlorinated Ethenes WI Evaluated in situ chemical oxidation and biological reduction of chlorinated ethenes in bench and pilot treatability studies.
TCE WI Provided remedial design and implementation support for chemical oxidation of TCE in soil.
Lead, Ethyl Benzene, Naphthalene, Xylenes TN Provided treatability study, remedial design, and implementation support for metals stabilization and destruction of organic contaminants.  Waste included clay soil, glass, and paint waste from multiple manufacturing operations.
Lead, TCE, PCE IL Provided treatability study, remedial design, and implementation support of a 2-step treatment process to stabilize lead and oxidize TCE and PCE.  Material was disposed as a non-hazardous TSCA waste due to the presence of PCBs.
Manganese PA Evaluated a variety of reagents in a treatability study to reduce manganese concentrations in baghouse dust.
Lead MD Evaluated reductions in leachable lead concentrations in manhole sludges during a treatability study.
Chromium and PCP WI Completed treatability study and provided design support for reductions of hexavalent chromium and PCP concentrations.
TCE IN Provided pilot testing, remedial design, and turnkey remediation by chemical oxidation of a large TCE plume beneath an existing manufacturing operation.  Also provided turnkey installation of a biologically active permeable reactive barrier to address off-site migration.
Mercury MI Provided treatability study services to evaluate multiple technologies for reduction of leachable mercury concentrations.
Mercury NJ Provided treatability study services to evaluate multiple technologies for reduction of leachable mercury concentrations.  Technology required a treatment level in the part per trillion range.
Cobalt NC Provided treatability study and remedial design support for reduction of cobalt concentrations in soil and groundwater.
Chromium IN Performed a treatability study to determine an appropriate remedy for reductions of hexavalent chromium.  Implementation support provided to site investigation by measuring hexavalent chromium in the field to define the extent of contamination.  Completed remedial design for inclusion in Remediation Work Plan.
BTEX MI Evaluated remediation technologies to reduce BTEX concentrations during a treatability study.
PCP MI Evaluated remediation technologies to reduce PCP concentrations during a treatability studyRemedial design support was also provided.
Lead PA Evaluated reductions in leachable lead concentrations in manhole sludges during a treatability study.
Lead AZ Evaluated remediation technologies in a treatability study to reduce TCLP-lead concentrations in soil at an active shooting range.
Arsenic and Lead PA Evaluated remediation technologies in a treatability study to reduce TCLP and SPLP lead and arsenic concentrations in soil at a shooting range.
Lead PA Provided implementation support to screen lead concentrations during an active remediation.
TCE KS Performed remedial design and workplan preparation for remediation of a solvent plume.
Chlorinated ethenes TX Provided remedial design support for remediation of a solvent plume.
Lead IN Performed a treatability study to evaluate remedial options for TCLP-lead reductions in a large waste pile with various materials and lime waste.
Lead TN Provided treatability study, remedial design, and implementation support for remediation of lead at a military firing range.
Petroleum hydrocarbons MI Provided treatability study and remedial design support for activated sodium persulfate injections in a residential neighborhood.
Lead IL Provided treatability study and remedial design assistance for remediation of lead at a former manufacturing facility.
Vinyl Chloride NC Evaluated vinyl chloride reductions using potassium permanganate during a treatability study.
Mixed waste OK Provided remedial design support for management of radioactive mixed waste.
Selenium MI Completed treatability study and evaluated multiple remediation technologies for the reduction of Selenium.
Multiple metals MI Performed treatability study and remedial design services to satisfy leaching delisting limits for multiple heavy metals in K061.
Cadmium FL Demonstrated reductions in TCLP-cadmium concentrations in soil at a former manufacturing facility during a treatability study.
Lead FL Performed treatability study testing and in-field implementation support for remediation of lead in firing range soil.
Arsenic, Cadmium, and Lead Performed treatability study evaluations to reduce leachable concentrations of multiple metals at a former ceramic manufacturing facility.
Petroleum hydrocarbons IL Provided remedial design support for treatment system and monitoring.
Arsenic, Cadmium, and Lead MN Performed treatability study testing to reduce TCLP lead concentrations for a large site impacted with slag.
Arsenic FL Provided treatability study and remedial design support to reduce TCLP and SPLP arsenic concentrations to below site remediation goals.
Petroleum hydrocarbons PA Provided treatability study, remedial design, and implementation support for application of activated persulfate at a gas station facility.
Lead FL Performed treatability study testing to reduce lead concentrations in groundwater.
Chromium, copper, nickel and zinc NY Performed treatability study testing to reduce multiple metals concentrations subjected to an SPLP for in situ stabilization.
Arsenic and lead NY Performed treatability study testing to reduce arsenic and lead concentrations in soil.
Cadmium and lead NC Performed treatability study testing to reduce cadmium and lead concentrations for in situ stabilization.
Cadmium, lead, zinc GA Performed treatability study testing to reduce multiple metals concentrations for in situ stabilization.
Arsenic FL Evaluated multiple reagents in a column test as part of a treatability study to evaluate remedial options.
Lead SC Provided treatability study, remedial design, and implementation support of a large lead remediation project.
Arsenic and lead MA Performed treatability study and pilot test evaluations of remediation chemistries to reduce arsenic and lead concentrations in soil and groundwater.
Petroleum Hydrocarbons IA Completed treatability studies for BTEX oxidation.

Example Projects – Superfund Liability Support

Contaminant State Services
Solvents IN Lead Scientist/Engineer for mitigation of large TCE and degradation products plume.  Remedy in progress.
Solvents KS Served as Project Manager and Technical Resource to the company that assumed environmental liability associated with former manufacturing operations.
Petroleum Hydrocarbons IL Provide technical support in contaminant fate and transport for BTEX plume entering residential areas.
Petroleum Hydrocarbons IA Completed treatability studies for BTEX oxidation.
Non-contaminants WI Provided technical support for the hydrogeologic evaluation of a landfill permit in central Wisconsin.
Non-contaminants WI Provided technical support for the hydrogeologic evaluation of a landfill permit in southeastern Wisconsin.
Multiple metals, PCBs and Dioxins OH Provided technical support to the removal of waste and contaminated soil for off-site disposal.

Example Projects – International

Contaminant Country Services
Solvents Czech Republic Provided remedial design and implementation support for chemical oxidation of TCE in groundwater.
Solvents South Africa Provided remedial design and implementation support for remediation of TCE and its degradation products in a solvent plume from historical manufacturing operations.
Solvents Italy Remedial design support for management of a TCE and degradation products plume from historical manufacturing operations.
Chromium Australia Assisted with remedial design for management of a chromium plume.  Column studies and implementation in progress.
Multiple Australia Developed remedial options through treatability study evaluations for treatment of stockpiled material with heavy metals, herbicides, and pesticides.