Risk Assessment and Due Diligence
- AAI Phase I Site Assessments
- Phase II Site Assessments
- Case Documents Reviews
- Remediation System Reviews
An All Appropriate Inquiry (AAI) Phase I is frequently required prior to transfer of property ownership or leasing of an industrial property. AAI Phase I protocol is defined by ASTM E1527. In the event that additional investigation is requested following the preparation of an AAI Phase I, a Phase II Environmental Site Assessment (ESA) is conducted, as defined by ASTM E1903. Phase II ESAs frequently include surface soil sample collection, and may require subsurface sampling of both soil and groundwater to determine the presence or absence of constituents of concern. Constituents of concern vary from site to site, and may include heavy metals (lead, arsenic, antimony, mercury), petroleum hydrocarbons (oil, gas, grease, diesel), volatile organic compounds (benzene, toluene, MTBE), and polynuclear aromatic hydrocarbons (PAHs).
GeoScience personnel’s AAI Phase I and Phase II Environmental Site Assessment experience includes both formal and informal assessments of commercial, residential, and industrial sites. Investigated sites have included multi-unit residential complexes, current and former retail fuel stations, undeveloped land, industrial properties, individual and multi-unit commercial establishments, and resource development properties.
Reviews of case documents prepared by State, Local, and Federal agencies can be conducted for due diligence reasons as well. Examples of such documentation could include regulatory compliance letters, closed cases, abandoned cases, and inactive cases.
With GeoScience’s extensive experience in the soil and groundwater remediation and mitigation industry, we are well qualified to review existing remediation systems on a cost effectiveness and return on investment basis. Recommendations following such a review may include proposing modifications to the existing remediation system(s) or alternatives to active remediation to facilitate timely and affordable closure of the case.
GeoScience understands that site assessments often must be conducted in a discreet and time sensitive manner. As such, our personnel are available to conduct assessments on a short turn around basis during non-business hours, if required. Our relationship with licensed and registered drilling contractors allows timely conduct of subsurface investigations when required.