We believe in the stewardship of the earth, and offer cost-effective, scientific, environmental solutions to our valued clients with a fair return.

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Work Philosophy

AGVIQ seeks scientific solutions for our clients that will allow for the most cost-effective, environmental compliant solutions. When our clients identify an environmental concern, they come to AGVIQ for our expertise of regulations and ability to provide sound technical solutions. We begin the process by identifying a scope of work that will define the process, project requirements and budgetary needs. We seek to build a partnership with our clients that will reinforce our understanding of their specific situation and the solution. Once we have approval from the client, our scientists work closely with regulators to develop an understanding of work plans, actions and specifics of a project. By bridging the relationship between the client and regulating agency, we negotiate a work plan with the regulators, so our clients do not find themselves in a difficult situation once the project begins. Health and safety, quality assurance, and quality control are very important to our company. We complete projects on time, on budget and have an outstanding record with long-standing clients.

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Technical Competence

AGVIQ personnel have ample experience in urban and rural environmental projects. Our personnel hold advanced post-secondary degrees in the environmental field combined with extensive hands-on work experience. We maintain a shareholder resource list of Haz-Mat trained personnel for use on an as-needed basis.

AGVIQ has the ability to quickly organize  remote sites under harsh and arctic conditions.  Our logistics team has vast experience and relationships with all major transport organizations, making us a leader in remote site project management.  We can rapidly respond to an increase in technical requirements and augment staff as the project dictates.  We have built a well-received reputation with state and federal regulatory personnel, and they maintain professional confidence in our firm.

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Project Experience

AGVIQ has proven experience in the following disciplines:

  • Asbestos and Lead Inspections
  • Endangered Species Surveys
  • Environmental and Ecological Assessments
  • Environmental Impact Statements
  • Environmental Project Management
  • Hazardous Material Characterization and Sampling
  • National Environmental Policy Act (NEPA)- Processes
  • Remediation Design and Implementation
  • Underground Storage Tank (UST) Assessments, Removals, and Closure
  • Wetlands Delineations
  • RCRA Closure
  • Long-term Monitoring and System Operation
  • HAVE (Hot Air Vapor Extraction)
  • Airplane Crash Emergency Response
  • Landfill Cap and Closures
  • Mangrove Restoration
  • Shoreline Stabilization

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Key Personnel

The following are overviews of key personnel of AGVIQ:

David Leadenham, General Manager
Mr. Leadenham has more than 35 years of experience in program and project management, including more than 1,500 completed projects ranging in value of up to $16 million, and a combined program and project management experience with restoration and remedial action projects regulated by CERCLA, RCRA, and TSCA. He also has 15 years of construction management and on-site supervision. Currently, Mr. Leadenham is the program manager in the administration of a five-year, $50 million contract with the Atlantic Division, Naval Facilities Engineering Command in Norfolk, Virginia. Prior to joining AGVIQ, Mr. Leadenham served as a regional manager for Parsons Corporation supporting the National Remediation Program Group. He also spent 20 years in project and program management with OHM/IT Corporation.

Craig Miller, Program Manager
Mr. Miller joined AGVIQ as a senior project manager in the Tidewater, Virginia area and shortly thereafter assumed the position of JVII program manager for the South Div. Contract with the Navy. In this capacity, he is responsible for the management of the program, and the dedication of project managers for various Task Orders and projects that come through the Joint Venture contract with the Southern Division, Naval Facilities Engineering Command, in Charleston, South Carolina. His 21 years of experience spans a variety of work in the commercial-nuclear, industrial, and residential sectors.  He also has 12 years of experience in construction management and on-site supervision at hazardous waste sites.

Thomas Cherrix, Business Development/Proposal Manager
Mr. Cherrix joined AGVIQ as a business development/proposal manager in our Northern Virginia satellite office. Mr. Cherrix has more than 22 years progressive management experience in fast paced environments, including construction/remediation site management, emergency response and hazardous waste management. His responsibilities under business development include the development of new client relations, and reviewing solicitations from government, state and private sector agencies related to Tikigaq Corporation’s (AGVIQ) business line.

Steve Matney, Project Manager
Mr. Matney joined AGVIQ as a project manager in the Tidewater, VA office. He is a Certified Environmental Manager and possesses other recognized certifications utilized for environmental investigation/remediation projects and industrial hygiene inspections. Prior to joining AGVIQ, Mr. Matney worked for two local environmental firms where he managed investigation and remediation projects for federal, municipal, commercial and industrial clients across the country. Mr. Matney has more than 16 years of project management experience in the environmental investigation and remediation field.

Taylor Sword, Project Manager
Mr. Sword joined AGVIQ as a senior project manager in the Virginia Beach office. Mr. Sword is a Certified Professional Geologist with both domestic and international experience, and more than 24 years of experience in the environmental industry, involving program/project management, construction, geo-science investigation, resource development and environmental activities such as site assessments, remediation investigation, design, construction, wetlands construction, operation and maintenance (O&M), remedial investigation/feasibility study (RI/FS), O&M optimization, pilot testing and organizational operations. He has over 14 years of management experience working on restoration/remedial action projects. Prior to joining AGVIQ,  Mr. Sword served as a senior project manager supporting the Naval Facilities Engineering Command Remedial Action Contract, Atlantic Division.

Ed Dullaghan, Project Manager
Mr. Dullaghan has over 22 years experience and is a Certified Professional Geologist. He currently provides managerial, technical direction and senior staff support in design and implementation of environmental remedial action projects at numerous U.S. Naval facilities under AGVIQ’s SBRAC contract.  Mr. Dullaghan provides significant expertise in  hazardous waste management, preparation and review of site, risk and remediation assessments, corrective action plans, remediation system design, design and implementation of hydro-geologic tests, in-situ remediation pilot tests, groundwater flow and fate-and-transport modeling, geologic mapping, geo-statistical evaluation of soil and groundwater information, materials testing and regulatory compliance.  Mr. Dullaghan’s state and municipal experience includes diverse work such as providing fast track due diligence services for large real estate transactions, site investigation, remediation, permitting for leaking UST/AST facilities, and environmental site assessments for public use facilities and major transportation infrastructure projects such the Norfolk Light Rail Transit Project for the Hampton Roads Transit Authority. An indication of his effective service and client focus, Mr. Dullaghan received letters of commendation from the USACE Omaha District and the USCG ISC Portsmouth, VA, as well as a Joint Certificate of Excellence from the DOD, USEPA, and NC DENR for providing environmental support for a complex, multi-year effort at Pope AFB, NC.

Robert Brown, Project Manager
Mr. Brown joined AGVIQ in March 2008 as a senior project manager in the Virginia Beach, Virginia office. He is a Certified Professional Geologist with 24 years of domestic and international experience in the environmental industry involving program/project management, construction, geo-science investigation, and environmental activities such as site assessments, remediation investigation, design, construction, operation and maintenance (O&M), remedial investigation/feasibility study (RI/FS), O&M optimization, pilot testing and organizational operations. His environmental regulatory experience has been with Resource Conservation and Recovery Act (RCRA), Comprehensive Environmental Resource Compensation and Liability Act (CERCLA), Superfund Amendments and Reauthorization Act (SARA), Clean Air Act (CAA), Clean Water Act (CWA) and various specific state and international regulations. He has over 18 years of management experience working on restoration/remedial action projects.  Mr. Brown also has international experience working at facilities in Japan, Panama and St. Croix, U.S. Virgin Islands.

Jesse Cox, Site Manager
Mr. Cox has more than 12 years of experience in the construction industry. He has been a site manager for government projects for the past four years. His experience includes industrial, civil and remediation/restoration work. Mr. Cox is a qualified Site Safety Officer with additional training in the environmental field.  His supervisory experience includes wetlands restoration, landfill closures, hazardous and non-hazardous waste removal, UST/AST removal and installation, bio-retention areas, demolition and site work.

Jason Chebetar, Sr. Environmental Engineer
Mr. Chebetar has more than 12 years of professional experience in the field of environmental services including geology, biology, environmental law (RCRA, CERCLA, and FIFRA), ecological management, plant physiology, geochemistry and organic chemistry. Mr. Chebetar assists in obtaining soil, sediment, surface, and ground water samples from various mediums and field locations. He collects and compiles field data, documents technical data for management review and assists in technical report writing. He is also responsible for coordinating and observing subcontractors performing field investigation services such as drilling and well installation.  He has served as a foreman on various construction sites as well as a field team leader on environmental assessments.

Mark Friar, Site Manager
Mr. Friar has been employed in the environmental/remediation/construction industry for more than 27 years.  He has served as a response manager, site manager, and construction project manager on various government projects over the past 17 years, including design, government procurement, site management, field work, record keeping and reporting. Mr. Friar has extensive experience managing multi-disciplinary remediation projects for a wide variety of clients, including intimate knowledge in all aspects of construction management, site safety/control, equipment use, labor, estimating management, scheduling and budgeting. Mr. Friar has been responsible for development of work plans, scopes of work, subcontractor RFQs, subcontractor review/bid evaluation, and award including subcontractor oversight upon award.


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Contact: David Leadenham

2809 S Lynnhaven Rd

Virginia Beach, VA 23452

Phone: (757) 318-9420

Fax: (757) 318-9421

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