Due Diligence
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Phase I Environmental Site Assessment


RSB Environmental has successfully completed 1000+ Environmental Site Assessments in Houston, Texas and nationwide for our clients such as lender, commercial real estate agents, buyers and sellers. RSB staff has combined 30 plus years of industry experience. Phase I ESA, whether in Houston, Texas or in other cities across the nation. It is an important element of the due diligence as it can determine if there is a potential environmental condition at the property. We serve Houston, Dallas, San Antonio, Austin, Texas, and beyond! Contact us now for more info on Phase I ESA in Houston and beyond

Our Phase I Environmental Site Assessments whether done in Houston, other Texas cities or anywhere nationally are completed by experienced staff and all are directed by environmental professionals with a minimum of 10-years experience. Our projects are cost-effective because we are a mid-size employee-owned company and we do not have the large overhead and expenses of a large company. We have the available staff and experience to complete multi-site portfolios nationwide with very short due dates (7-10 business days). We take pride in the fact that we can provide quality Phase I ESA reports for less cost than our competition.

RSB Environmental is the national leader in Phase I Environmental Site Assessments by volume. All our reports are completed to meet the standards of ASTM E1527-13. RSB Environmental often customizes reports to meet individual client or agency lender’s (Fannie Mae, Freddie Mac) requirements while taking the widely varying geology and topography of  the region into consideration.

Phase I ESA Scope:

Site Visit

  • Inspection of the Site by an Experienced Inspector
  • Catalog the Presence of Hazardous Materials or Petroleum Products

Historical Research

  • Historical Aerial Photographs
  • Reverse Street Directories
  • Building Permits
  • Planning Records
  • Topographical Maps
  • Sanborn Fire Insurance Maps
  • Department of Oil and Gas Maps
  • Title Information

Geology and Hydrogeology

  • Soil Type
  • Geological Setting
  • Groundwater Depth

Regulatory Research

  • Fire Departments
  • State Environmental Agencies
  • Federal Environmental Agencies

Interviews and Document Review

  • Interview Tenants and Owners
  • Interview State and Local Regulators
  • Review Provided Reports

Why choose RSB Environmental for your due diligence needs?

Here are a few of the many reasons to choose RSB Environmental:

  • Lender approved and accepted
  • Licensed Engineering Firm
  • Fast Turnaround (7-10 business days)
  • Competitive Pricing
  • $1M Professional Liability Insurance
  • Completed thousands of Phase I, II ESAs

Our Service Areas

RSB has conducted Due Diligence projects nationwide. Please feel free to call us at 1-800-304-6517 or email at info@rsbenv.com to get a site specific price for your property.

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