Environmental / Services

Phase II & III ESA

If a site is considered contaminated based on a Phase I ESA report, a Phase II environmental site assessment may be conducted, ASTM test E1903, a more detailed investigation involving chemical analysis for hazardous substances and/or petroleum hydrocarbons.

Phase II & III ESAs are performed in general to identify and delineate the extant of the contamination.

Phase II ESAs include sampling of surface as well as sub-surface soils, ground water samples, or building materials. The most frequently tested substances are petroleum hydrocarbons, heavy metals, pesticides, solvents, asbestos, and mold. Phase III ESAs involve investigation involving remediation of the site.

Frequently Asked Questions

What are typical Phase II & III ESA tasks?
  • Sampling of soils, ground water, or building materials
  • Analytical testing
  • Identification of the contaminant(s)
  • Extant of the contamination (surface and depth)
What is not included in Phase II & III ESA?


How long does it take?

Varies with the analytical test turnaround time. The samples are tested at a local testing laboratory in San Antonio.

How much does it cost?

Varies with the scope of the project. Please contact us to discuss.