HALFF ASSOCIATES, INC.

HALFF ASSOCIATES, INC. specializes in environmental remediation and engineering services for defense and federal infrastructure sites, with deep expertise in per- and polyfluoroalkyl substances (PFAS) investigation, hazardous material remediation design, and military facility closure activities. The firm delivers comprehensive Phase I and remedial investigations, remedial design, and regulatory compliance services for contaminated former military installations, including soil and groundwater assessments, contaminant source identification, and site-specific cleanup strategies. Their technical proficiency extends to explosives demolition design, zinc remediation, and Department of Defense regulatory code reviews, demonstrating strong command of CERCLA, RCRA, and BRAC compliance frameworks. A key differentiator is their focused execution on complex, high-stakes DoD environmental projects requiring interdisciplinary coordination between environmental science, civil engineering, and regulatory affairs. The contractor maintains a consistent and exclusive relationship with the Department of Defense, delivering engineering and environmental services across multiple military installations, including army ammunition plants, air force bases, and former defense depots. Their work supports base realignment and closure initiatives, hazardous waste management, and infrastructure decommissioning, indicating a trusted role in DoD’s long-term environmental stewardship and installation sustainability programs. Primary technical focus is on NAICS 541330—Engineering Services—where they provide applied environmental and civil engineering solutions tailored to federal land use transitions. Their market positioning centers on defense environmental remediation, particularly in PFAS characterization and remedial design, placing them at the forefront of DoD’s priority initiatives to address emerging contaminants. HALFF ASSOCIATES, INC. is a privately held firm headquartered in Richardson, Texas, with no federal certifications on record. Their geographic presence is aligned with DoD’s operational footprint, enabling rapid mobilization to remote or restricted military sites across the continental United States. They operate as a specialized engineering provider with a reputation for technical rigor in high-regulatory environments.