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Site Characterization Soil Remediation Engineering Licensed (Certified Scientist)

Phase I Environmental Site Assessments

Property Transactions often require due diligence through implementation of a Phase I Environmental Site Assessment  to identify and evaluate the potential for recognized environmental conditions to exist at a subject property.  Our Phase I Environmental Site Assessments (ESAs)  are designed to meet or exceed the ASTM Standard Practice for ESAs and typically include examination of readily available geologic and hydrogeologic publications, archival aerial photographs, topographic and historical maps, and commercially available environmental databases. Our personnel have performed hundreds of Phase I ESAs throughout the United States.

Phase II Environmental Site Assessments

When a potentially hazardous environment condition is discovered during completion of a Phase I ESA, a subsequent Phase II ESA may be recommended in order to confirm or deny the presence of environmental hazards.  Phase II ESAs typically involve invasive sampling of building materials or soil and ground water media to determine whether or not adverse environmental impacts have occurred.  Depending on client requirements and site specific considerations, the scope of work for a Phase II ESA can vary significantly, from the collection of a few soil samples to an extensive subsurface investigation. Tecumseh professionals strive to minimize costs through prudent design and implementation of Phase II ESAs. Our personnel have performed over 60 Phase II investigations.

Initial Abatement/Emergency Response

Tecumseh personnel have performed initial abatement and emergency response activities at several chemical storage and distribution facilities.  Our trained professionals can arrive on-site within a matter of hours to initiate cleanup of petroleum hydrocarbon release and prevent further impacts.  We use state-of-the field instruments to evaluate the magnitude and extent of the release(s).  We also notify and interface with the appropriate regulatory agencies, direct cleanup and abatement activities, mitigate the potential for immediate human health or environmental threats, and prepare the appropriate reports for submittal to regulatory oversight agencies.

Subsurface Investigations

We design and implement cost-effective, comprehensive investigation strategies to accurately characterize subsurface lithology and evaluate the magnitude and distribution of environmental contaminants.  Activities typically include: site inspection and data review, advancement and sampling of soil-gas sampling point, soil borings and/or ground water monitor wells, field/laboratory analysis of samples, synthesis of collected data, and regulatory interface. Our personnel have conducted hydrogeologic contaminant site characterizations at over 150 petroleum and hazardous materials facilities across the country.

Remedial Design and Implementation

Tecumseh personnel have conducted site remediation activities at over thirty locations in New Mexico, California, Texas, Colorado, Massachusetts, and other states.  Many of these projects have reached post-remediation compliance monitoring or have been granted "no further action" status by state and federal regulatory oversight agencies.  We have successfully designed, implemented, and operated a wide range of cleanup technologies including:  excavation and disposal, vacuum extraction (VE), air sparging/vacuum extraction (AS/VE), thermally-enhanced VE, groundwater pump and treat, in-situ and ex-situ treatment methods, enhanced bioremediation, multi-phase vacuum extraction (MPVE), and monitored Natural Attenuation. Tecumseh's staff members are highly experienced and have conducted site characterization studies involving many different types of contaminants in diverse geologic settings.

UST Removal Oversight

Tecumseh has been involved in a wide-variety of Underground Storage Tank (UST) removal projects. All of our projects are completed utilizing strict health and safety procedures. Our services include: selection of contractors, and contractor oversight, inspection of excavated USTs for corrosion, pitting and/or holes, collection of LEL measurements,  utility clearances,  documentation of environmental conditions through soil and groundwater sampling, regulatory interface and report preparation, and health and safety monitoring and documentation. Our experience includes tasking at over 50 locations.

Feasibility Studies and Pilot Testing

Field Sampling and Air, Soil Groundwater Monitoring