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Gabriel Environment Blog

Phase I Environmental Site Assessment Spotlight: Soil Conditions

May 16th, 2018

Vent stack and fill port for a former fuel oil tank where the building has been converted to natural gas for its heat.

During the course of a Phase I Environmental Site Assessment (ASTM E1527-13), Gabriel attempts to document soil conditions through visual observations, regulatory database review, and historic document review.

Visual observations may include:

  • Above-ground storage tanks
  • Evidence of underground storage tanks (eg: vent stacks or fill ports)
  • Drums
  • Staining or corrosion
  • Stressed vegetation
  • Pools of liquid
  • Hazardous materials
  • Wells
  • Septic systems or cesspools
  • Geological/topographical observations

Regulatory database and historic document review may include:

  • Underground Storage Tank (UST) installation or removal records
  • Leaking USTs
  • Past uses of property
  • Records of hazardous materials usage and/or violations
  • Environmental remediation/clean up
  • Fire insurance maps

If a Recognized Environmental Condition (REC) impacting the site’s soil is discovered either through visual observation or a review of regulatory databases or historic documents during a Phase I, Gabriel may recommend soil borings to investigate if there is analytical data showing hazardous substances or petroleum products in, on, or at the property.

Contact Natalie Neuman, Group Leader Assessment Services, at nneuman[at]gabenv.com or 773-486-2123 with any questions about how Gabriel assesses soil conditions during a Phase I.

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