Phase 2 Environmental Site Assessment 4

Phase 2 Environmental Site Assessment

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A Phase 2 Environmental Site Assessment is a subsurface investigation that includes soil and groundwater testing for contamination. Phase 2 Reports generally include site maps of existing or significant historical land features, as well as information from geophysical surveys.

Phase 2 ESA Objective

The objective of a Phase 2 Environmental Site Assessment is to investigate whether contamination exists underlying a property.  Phase 2 Testing is based on the Phase 1 Site Assessment Report.

Phase 2 Environmental Site Assessments Include Drilling for Soil Samples

Phase 2 Environmental Drilling

The Phase 2 Environmental Site Assessment Seekers

A property will generally undergo the testing of a Phase 2 Environmental Site Assessment based on the conclusions and recommendations of a recent Phase 1 Site Assessment Report.  However often times at high risk properties, parties directly request a Phase 2 Subsurface Investigation along with a Phase 1 ESA, for a comprehensive understanding of contamination risk.

The Phase 2 Investigation Requirements

Geo Forward Phase 2 Environmental Reports are budget and scope optimized. All scopes of work are prepared by a licensed geologist or engineer, per the ASTM.

A Phase 2 Environmental Site Assessment can Additionally Include the Analysis of Soil-Gas and Groundwater

Phase 2 Environmental Investigation Drilling

The Phase 2 ESA Process

Scopes vary from site to site.  A Phase 2 Environmental Site Assessment Report includes testing of subsurface materials by drilling. Some Phase II projects will also require a geophysical survey.  Using ground penetrating radar, our team can identify the precise location of underground tanks, utility lines, pipelines, and more.

Clients can also request to customize reporting formats for a Phase 2 Subsurface Investigation.

Geo Forward, Inc.

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4 thoughts on “Phase 2 Environmental Site Assessment

  • Amy Medina

    Great! Finally some clarity about how a phase 2 environmental site assessment is actually the same as a phase 2 subsurface investigation! I guess every property is different and needs different kinds of testing and drilling. Thanks for the information!

    • Azad A. Kaligi, PG Post author

      Hi Raj,

      An environmental subsurface investigation requires testing soil and soil gas samples from variable depths. Modern day drilling rigs are the best tools we can use to collect undisturbed soil samples in such a short amount of time (and for a lower overall cost).

      Alternatively, one could use a hand-auger to advance borings (hand-drilling). This method isn’t practical because: it is slow; labor intensive; produces environmental waste; and depths are limited. Additionally, some kinds of soils cannot be drilled using a hand-auger. Lastly,hand-augering is not advised for environmental testing, because it is known to disturb to chemical quality of the soil. This results to improper soil and soil gas lab results.

      The ASTM and EPA advised methods of subsurface soil sampling for environmental phase 2 investigations include drilling. Furthermore, it is usually determined to be the most practical and cost-efficient way to do the job.


      Azad A. Kaligi, PG