Site Investigation
Electric Power Generating Station, Hawai’i — Program manager for investigation and source control of PCBs in an upland facility adjacent to Pearl Harbor Superfund Site. Work involves identification and source control mitigation of PCB sediment accumulation areas to prevent recontamination of adjacent harbor sediments.
School Campuses, Island of Hawaii — Program manager for assessment and risk evaluation of building-exterior soils at multiple school campuses. Identified elevated levels of arsenic, lead, and chlordane believed to be from spalling lead-based paint and historical termiticide treatments. Developed statewide framework for assessing and remediating soil impacts.
Former Pesticide Storage and Mixing Area, Island of Hawaii — Project manager for site investigation and cleanup of former pesticide-handling area with arsenic and dioxin impacts to soils. Site was within a residential development parcel, and was remediated to unrestricted land use levels. Worked with public land owner and State regulators to complete project on time and within budget, allowing continued residential development of the property.
Former Sugarcane Properties, Island of Hawaii — Project manager for multiple environmental site assessments of former sugarcane plantation lands on the Island of Hawaii, where soils have been impacted by arsenic and other pesticide chemicals. Sites were evaluated for organochlorine pesticides, dioxins, and total and bioaccessible arsenic. Determined remedial costs when warranted. Innovative use of field-portable x-ray fluorescence to screen site soils led to reduced investigation cost. Incremental sampling techniques were applied. Field pilots of iron amendments to reduce bioaccessible arsenic in soils are being conducted, and considered for full-scale implementation at several sites.
Avtex Fibers Superfund Site, Front Royal, Virginia — Managed the Avtex Fibers Superfund site. High-profile site was initial pilot project in the EPA Redeveloping Superfund Sites Initiative, with total remediation cost in excess of $100 million. Former rayon manufacturing plant on the bank of the Shenandoah River underwent building decontamination and hazardous materials abatement, 120 acres of waste impoundment closures, soil stabilization and treatment, fractured bedrock aquifer remediation, and various waste treatment alternatives. Significant public visibility and community involvement.
Countywide Brownfields Assessment Programs, Hawaii — Project manager for brownfields assessment projects for the islands of Kauai, Hawaii, and Oahu, under EPA brownfields grants. Prepared inventories of potential brownfields sites, ranked sites for redevelopment potential, and performed site investigations of select sites targeted for redevelopment.
Former Agricultural Chemical Formulating Facility, Fresno, California — Project manager for a complex soil and groundwater remediation project at a former pesticide formulating facility. Offsite groundwater plume of pesticide compounds was comingled with chlorinated solvent/metals plume from an adjacent site. The groundwater remediation project was complicated by friction between the adjacent PRPs, which required strategic support. Offsite groundwater extraction system was designed and implemented.
Closed Sugar Mill Facilities, Hawaii — Project manager for hazardous materials assessment and abatement projects for the closed Lihue and Kekaha sugar mills on the island of Kauai, on behalf of the property owner. These closed mills are classic brownfields sites with abandoned buildings and soil impacts from historic operations. Work included planning for integrated cleanup and site redevelopment.
Former Chemical Manufacturing Plant, South Charleston, West Virginia — Technical advisor for an innovative in situ chemical oxidation pilot test using sodium persulfate to treat carbon tetrachloride in soils and groundwater. Portions of site contaminated with VOCs and metals were cleaned up, sold, and redeveloped by automotive dealerships.
Open Dump Cleanup in Public Park, Lansing, Michigan — Project manager for cleanup of the Ralph Crego Park in Lansing, Michigan, where industrial waste dumping impacted 40 acres of recreational park and wetlands. Utilized mineral speciation and in vitro bioaccessibility studies to formulate a final cleanup standard for arsenic in collaboration with Integral staff. Removed in excess of 200,000 yd3 of impacted soils and waste material, and restored Crego Park for unrestricted public use.
Former Chromium Processing Facility, Columbus, Montana — Managed a $20 million remediation of hexavalent chromium at a site along the banks of Yellowstone River as part of the Mouat Industries Superfund site. EPA selected a costly ex situ soil stabilization/solidification remedy against recommendation of a PRP. Led a team that convinced EPA Superfund staff to change the remedy mid-course from onsite soil treatment to offsite soil disposal, saving the PRP substantial remedy costs and providing the community with a usable site. Demonstrated and negotiated a natural attenuation remedy for the hexavalent chromium groundwater plume. Integral staff performed ecological and human health risk assessments to guide reasonable remedy outcomes.
Former Pesticide Formulating Facility, Harlingen, Texas — Developed remediation strategies for the cleanup of lead arsenate and organochlorine pesticide soil impacts at a former agricultural chemical formulating plant in Harlingen, Texas. Final remedies accounted for limited arsenic bioaccessibility and natural attenuation of pesticides in groundwater.
Former Military Manufacturing Facilities, San Jose, California — Provided program management of San Jose area remediation work during the closure of military tracked vehicle manufacturing facilities. The projects totaled $60 million and were conducted under RCRA corrective action orders with California Department of Toxic Substances Control for sites impacted by chlorinated solvents and heavy metals. Soil and groundwater remediation systems were designed and installed (dual-phase extraction and bioaugmentation), all remediation was completed, and the property was successfully divested to the city.
Smelting Coke Manufacturing Facility, RCRA Corrective Action Projects, Wyoming — Project manager for a joint state and EPA RCRA corrective action project involving site investigation and remediation of waste management units, and soil and groundwater impacts by phenol and PAHs. Developed a monitored natural attenuation remedy to address the phenol groundwater plume. The ecological risk assessments led to limited removal remedies for PAHs in soil.
Lithium Manufacturing Facility, North Carolina — Conducted investigation and remediation at an operating lithium manufacturing facility. Challenges included identification and removal of more than 1,000 buried drums containing chlorinated solvents (PCE, TCE) beneath processed waste tailings landfills. Significant groundwater issues related to chlorinated solvents, including dense, nonaqueous-phase liquids. Designed and installed an innovative “passive” soil vapor extraction system, using wind turbines to move air since electrical power was not locally available.
Former Machine Manufacturing Facility, Jonesboro, Arkansas — Managed the design, installation, and closure of two sites impacted by PCE/TCE and diesel fuel. Utilized multilevel air sparge and soil vapor extraction technology to achieve clean closure results in less than 3 months of system operations.
Active Petrochemical Feedstock Terminal, Bay City, Michigan — Conducted investigation of a 40 acre petrochemical feedstock terminal using cone penetrometer, downhole and surface geophysics, and mobile lab. Supported design and installation of groundwater interceptor system for light, nonaqueous-phase liquid (free-phase benzene) and impacted groundwater.
Natural Gas Compressor Station, Kalkaska, Michigan — Conducted technology pilot testing for light, nonaqueous-phase liquid (natural gas liquids) source removal at a gas compressor station in conjunction with corporate research and development scientists. Technologies focused on bioaugmentation via air sparging and nutrient amendments.
Former Petrochemical Terminal, Bay City, Michigan — Designed and supported field investigations of groundwater impacts at a discontinued chemical tank farm along the banks of the Saginaw River. Installed a pump and treat system for containment and remediation of chlorinated solvent groundwater contamination. Developed a cost-effective hydraulic monitoring program to ensure protection of adjacent surface waters.
Brine Chemicals Manufacturing Complex, Ludington, Michigan — Conducted investigations and supported remedial design and remedial action on numerous known or suspected brine spill sites. Significant surface and downhole geophysical work and cone penetrometer testing aided identification of brine plumes. Used numerical groundwater modeling to support the design of brine spill recovery systems.