Environmental

Environmental Remediation

Tidewater provides comprehensive Environmental Remediation services under CERCLA, RCRA, and State/Local UST regulatory frameworks.  Our professional staff includes professional engineers (PE), professional geologists (PG), Project Management Professionals (PMP), chemists, and environmental scientists. Services include remedial design, removal/remedial action, remediation system operation and maintenance (O&M), long-term monitoring (LTM), and site closeout. Tidewater has experience with cleanup of regulated chemicals and emerging chemicals (e.g., PFAS, 1,2,3-trichloropropane, 1,4-dioxane, etc.) in soil and groundwater. We have served our clients environmental remediation needs for over 25 years. Our primary clients are the Federal government including USACE, NAVFAC, NASA, Air Force, and the Department of Interior.

For more information, contact Keith Fields, PE, PMP.

• CERCLA/RCRA/UST Remedial Action Design, Implementation, O&M, LTM, and Site Closure
• Experience with Regulated and Emerging Contaminants (including PFAS)
• Remedial Action and Treatment system implementation for Soil, Groundwater, and Soil Vapor
• 6 PEs, 4 PGs, 5 PMPs, and over 30 environmental scientists, chemists, and environmental technicians
• Clients include Federal Government (USACE, NAVFAC, NASA, AF, and DOI)

Drilling and Field Support Services

Tidewater: has experienced and certified drillers (MD, NY, PA and DE); owns and operates three direct push technology (DPT) Geoprobe® Rigs (7800, 6622, and 54LT); and maintains a range of tooling (e.g., hollow-stem augers, macro-cores, dual tube and spilt-spoon) for sampling soil, installing temporary and permanent groundwater monitoring wells (from 1-inch to 4-inch diameter), collecting soil gas and vapor (PRT), injecting ChemOx and Enhanced Bioremediation Compounds, and conducting high resolution surveys involving SCP, MIP, and LIF Probes to define lithologic units and presence of VOC and petroleum in subsurface.  Our field crews also provide range of services from site preparation (clearing, grubbing, installing silt fence), excavation, demolition, and site restoration (grading and seeding.).

Our drillers and field technicians have significant health and safety training including OSHA 40 Hour HAZWOPER, OSHA 8 Hour HAZWOPER Refresher, OSHA 30 Hour Construction Supervisor, Radiologic Worker Training, and CPR and are able to drill and work on the most difficult and demanding cleanup sites.

For more information, contact Keith Fields, PE, PMP.

• Provided drilling services (soil sampling and well installation) for CERCLA SI/RI for the investigation of radiological contamination at three National Park Sites in New York.
• Conducted High Resolution Survey using SCP, MIP and LIF Probes to delineate chlorinated hydrocarbon plume from a dry cleaner located in Maryland.
• Installed 30 injection points, constructed pump and tank system, and injected compounds to address solvent contamination at a former waste storage area.
• Conducted demolition, removal, and restoration of over 30 underground storage tank sites. This includes conduct confined space entry to clean USTs as well as
• Conduct Hydraulic Lift Removal Including the cleaning and removal of reservoir and associated piping and hydraulic cylinder.

Environmental Investigation

Tidewater  also provides comprehensive Environmental Investigation services under CERCLA, RCRA, and State/Local UST regulatory frameworks.  Our professional staff includes professional engineers (PE), professional geologists (PG), Project Management Professionals (PMP), chemists, and environmental scientists. Services include preparing/conducting Phase I/II Services, Preliminary Assessment (PA), Site Inspection (SI), Remedial Investigation (RI), Feasibility Study (FS), Proposed Plan (PP), and Record of Decision (ROD). Tidewater has experience with comprehensive investigation of regulated chemicals and emerging chemicals (e.g., PFAS, 1,2,3-trichloropropane, 1,4-dioxane, etc.) in soil, groundwater, surface water, sediment, and soil vapor. We have served our clients environmental investigation needs for over 25 years. Our primary clients are the Federal government including USACE, NAVFAC, NASA, Air Force, and the Department of Interior.

For more information, contact Keith Fields, PE, PMP.

• 6 PEs, 4 PGs, 5 PMPs, and over 30 environmental scientists, chemists, and environmental technicians
• Multi-Media Investigation of Soil, Groundwater, Sediment, Surface Water, and Soil Vapor
• Experience with Regulated and Emerging Contaminants (including PFAS)
• CERCLA PA, SI, RI, FS, PP, ROD, and RCRA/UST equivalent services

Radiological Services

Tidewater’s Radiological Services Division provides radiological site survey and modeling, decommissioning, MARSSIM closures, radiological remediation and operations, licensing and audit support, and radiation safety services throughout the world. In combination with Tidewater’s Environmental, Construction, and Industrial Hygiene Divisions Tidewater provides clients with a single source for turnkey remediation or MARSSIM closure of radiological sites. The major clients include colleges and universities, the Department of Energy, US Army Corps of Engineers, US Air Force, and Nuclear Regulatory Commission license holders.

Tidewater holds four (4) nationwide reciprocal radioactive materials licenses including with the Nuclear Regulatory Commissiong and maintains a complete inventory of calibrated, field-ready health physics instruments including portable gamma spectroscopy systems, large area gas flow proportional counters, low‐energy gamma detectors, in-situ gamma spectroscopy, and a variety of hand‐held detection instruments for alpha, beta, and gamma, detection. The licenses permit Tidewater to perform radiological characterizations, remediation, waste packing and preparation for shipment, scoping and final status surveys.

For more information, contact Keith Fields, PE, PMP.

• MARSSIM Closure Planning, Implementation, and Reports
• In-Situ Gamma Spectroscopy
• GPS Oriented Gamma Walkover and Drive Over Surveys
• Data Processing and Mapping for Walkover and Drive Over Surveys
• MARSSIM Certification Training
• Qualified Radiological Control Field Teams
• Radiological CERCLA Remediation Planning, Implementation & Reporting
• Radiological Program & License Compliance Audits
• Radiological Professional Staff Augmentation
• Decommissioning Services

Industrial Hygiene Services

Tidewater provides quality, cost-effective solutions for industrial hygiene and occupational safety and health in the DC Metro Area and throughout the U.S. Tidewater’s IH professional staff includes Certified Industrial Hygienists (CIH), Certified Safety Professionals (CSP), Certified Hazardous Materials Managers (CHMM), EPA-accredited and state-licensed Asbestos Inspectors, Project Managers, Designers, Abatement Supervisors, Lead Inspectors, and Lead Risk Assessors. Tidewater has over 20 years of experience performing hazardous materials inspections and assessments, abatement specification design, abatement monitoring, indoor air quality investigations, water damage/mold assessments, and managing EPA/OSHA regulatory compliance issues. We perform these services in sensitive, high-profile, time-sensitive situations for a wide variety of Federal, State, industrial and commercial clients.

For more information, contact Keith Fields, PE, PMP.

• Hazardous Materials Inspections and Assessments
• Abatement Specification Design and Monitoring
• Indoor Air Quality Investigations
• 3 CIHs, 3 CSPs, 4 CHMMs, 9 Hazardous Materials Inspectors/Indoor Air Quality Professionals
• Clients include Federal Government, AE Firms, Construction Companies, State Government, and Local Government

Environmental Compliance

Tidewater multi-disciplinary team of professional engineers, geologists, industrial hygienists, and regulatory specialists provide comprehensive environmental compliance services under all the major environmental statutory programs including RCRA (e.g., management of waste and USTs), Superfund (e.g., Investigation, Cleanup and Recovery), Clean Water/Stormwater (e.g., Permitting, Monitoring, and Reporting) and Emergency Planning and Community Right-to-Know Act (e.g., Tier II and TRI). Our professionals routinely consult and apply the current statutes, regulations, policy, and guidance to assist clients address their compliance needs from record keeping, reporting, monitoring, and permitting.

For more information, contact Keith Fields, PE, PMP.

• Provide DoD client total waste management solution involving inventorying, profiling, labelling, transporting and disposing of diverse waste streams including lab-packs, aerosols, paint, electronic waste, oil, solvents, and pharmaceuticals.
• Provide environmental consultant client stormwater management and erosion and sediment control plan for Non-Time Critical Removal Action involving over 900 tons of PAH contaminated soil.
• Provide State governmental agency client stormwater compliance services from preparing stormwater pollution prevention plans, conducting quarterly and annual monitoring, reporting, training and conducting annual and biannual maintenance of green infrastructure (BMPs) and gray water infrastructure
• Provide Local County client comprehensive UST/AST inspection, compliance, release and monitoring services, and preclosure assessments, closure and post closure care.