Strict Quality Control For Better Environmental Outcomes
Reliable environmental decisions begin with reliable data. Unitek Environmental Guam provides professional soil and water sampling for environmental investigations, regulatory compliance, remediation, waste characterization, and permit requirements. Our personnel are trained in proper sample collection, labeling, preservation, chain-of-custody, and quality-control procedures in accordance with applicable USEPA requirements and approved sampling protocols.
Unitek supports NPDES and Underground Injection Control permits, soil and groundwater investigations, spill assessments, and other environmental compliance programs. Samples are carefully managed and transported to qualified laboratories, including EPA-recognized and U.S. Department of Defense-approved laboratories when required. Our environmental professionals review analytical results, evaluate data against applicable regulatory criteria, and provide clients with clear interpretation and practical recommendations for next steps.
Site Remediation & Restoration
Since 1988, Unitek Environmental Guam has provided environmental remediation and restoration services throughout Guam and the Western Pacific. Our experience includes petroleum releases, contaminated soil and groundwater, PFAS- and PCB-impacted materials, hazardous and regulated wastes, and sites affected by decades of military, commercial, and industrial activity.
Unitek provides integrated remediation services from site investigation and characterization through excavation, containment, treatment, transportation, disposal, verification sampling, and site restoration. Our combination of experienced environmental professionals, trained field personnel, specialized equipment, and established disposal networks allows us to manage complex remediation projects from initial response through regulatory closeout.
Significant remediation actions performed by Unitek include the following:
Home Depot Diesel Release Remediation - Guam
Unitek performed remediation following a diesel release at the Home Depot facility in Tamuning, Guam. Work included clearing approximately 114 cubic yards of vegetation and green waste, excavation of petroleum-impacted soil, packaging of contaminated material into 104 one-cubic-yard bulk bags, and containerization and off-island transportation for proper disposal. Post-remediation confirmation sampling demonstrated diesel-range organics below applicable Pacific Basin Environmental Screening Levels, documenting successful cleanup of the affected area.
North Aircraft Parking Ramp Andersen Air Force Base, Guam
Unitek's environmental scope for the North Aircraft Parking Ramp project includes management of approximately 28,641 cubic yards of PFAS-impacted soil associated with major airfield construction activities. Services include contaminated-soil management planning, excavation and controlled relocation of impacted material, hazardous-material management, and PCB removal and disposal planning. The project demonstrates Unitek's ability to integrate environmental compliance and contaminated-material management into large-scale military construction.
DLA/NAVFAC Fuel Farm Remediation – Guam
Unitek was contracted for the project planning, removal, containerization, transportation, and disposal of 1,200 cubic yards of contaminated soil at the former US Army Maintenance Depot, Toto, Guam. The site is now located at the Ibanez family compound in a residential area of Guam following the turnover of the property to the original landowners. Performance of site remediation activities at this site required extensive community outreach efforts by Unitek to minimize impacts on quality of life conditions for the Ibanez family during the remediation efforts. The site was used as a post-WWII vehicle maintenance area with an adjacent pit used for dumping various waste. As a result, soils in the landfill were impacted with low-level PCBs, heavy metals, and petroleum. Unitek personnel performed clearing of vegetation at the site, excavation, packaging, and transportation to the US mainland for disposal of 1,200 cubic yards of contaminated soil.
Orote Power Plant Remediation - Guam
Unitek managed remediation activities involving approximately 7,500 cubic yards of petroleum-impacted soil at the Orote Power Plant. Remedial activities included excavation, soil management, aeration and treatment, material handling, environmental monitoring, and disposal as required. The project demonstrates Unitek's experience managing large volumes of contaminated material while implementing remedial methods appropriate to site conditions and regulatory requirements.