New Property Environmental Phase I Site Assessment

Site AssessmentReal estate transaction screens and Environmental Phase I Site Assessments are routinely needed for due diligence in purchasing commercial property. An Environmental Phase I Site Assessment can be provided to anyone wishing to learn more about the environmental history of a particular property as an initial screening process. HERServices, Inc. also has the experience in conducting environmental site investigations, including: soil sampling, historical document review, waste disposition, and waste determinations. Our professional back ground experience includes: regulatory document preparation, ground water monitoring well installations, ground water sampling and aquifer permeability testing. We have the credentials to provide these services as Certified Environmental Managers in Nevada. A credential that is required to preforming Environmental Phase I Site Assessments in the State of NV.

HERServices, Inc. recently completed ASTM E1527-13 training which sets the standard for conducting the preliminary environmental site assessment investigation. Before you purchase a new property, especially within an industrial area, call HERServices, Inc. for more information.

Offering full real estate due diligence services with a team of registered and certified environmental professionals, HERServices has been completing Phase I and II Environmental Site Assessments (ESA) to future property owners throughout the United States since 1995. Specializing in multi-family residential housing, commercial real estate and land assessment evaluations. HERServices follows the ASTM Standards and Fannie Mae and Freddie Mac guidelines and has the ability to customize reports to the specific needs of the client.

We offer both Phase I & II site assessments and property condition documentation for your property oversight reviews throughout the western United States. Call us to discuss your current needs and to schedule a site visit.

Phase I Site Assessment

Need a little help defining the scope of work to properly document the property condition? Our advice to all individuals or corporations, worldwide, is that negotiations for real estate transactions should not proceed without, at a minimum, a properly executed Phase I Environmental Site Assessment. HERServices’ Phase I Environmental Site Assessments are modeled after, and incorporate, ASTM Standard E-1527-13. HERServices professionals conducting all Phase I and II ESAs shall be Nevada Certified Environmental Managers and have completed Company approved EPA and DOT training. Our professionals have worked on contaminated land clean up projects and understand EPA's requirements to identify negative site conditions and remove the sources of contamination.


A complete Environmental Site Assessment can involve three Phases, depending upon the size, type, construction and location of the property; the past and present intended use(s) of the property; and availability and access to complete historical site records and the use of hazardous chemicals at the site. A summary of what each report may contain is outlined below.


A Phase I ESA determines, for a parcel of real estate, the "recognized environmental conditions." That is, the presence or likely presence of any hazardous substances or petroleum products on a property under conditions that indicate an existing release, a past release, or a material threat of a release of the substance(s) into structures on the property, or into the ground, groundwater, or surface water of the property. It does this by accomplishing due diligence in:

  1. A visual inspection of the property, including walking over the entire site, ideally with the owner/manager/user present to answer questions.
  2. A comprehensive photographic log.
  3. Interviews with the owner/manager/user of all adjacent properties.
  4. A thorough review of all "practically reviewable" records pertaining to the property and surrounding properties within ASTM radii.
  5. A comprehensive written report.


Based on a properly executed Phase I report advising a Phase II report, a Phase II shall consist of:

  1. The physical sampling of the site, using the recommendations of the Phase I report as a minimum guideline.
  2. A comprehensive written report detailing the rationale for the sampling that took place, the sampling protocols and procedures employed, an explanation of the analytical results, and, if necessary, a description of the recommended remedial action needed to restore the site to the appropriate condition for its intended use.


The scope of an environmental site assessment includes research on the history of the site, prior business practices, and hazardous chemicals storage and usage, and any documentation on past environmental issues and site contamination. The report may include documentation of the current or past site clean up activities or the ongoing investigations by the local or state regulatory authorities for the site and its surrounding neighbors. The report is designed to help support the owner’s ability to qualify for the CERCLA innocent landowner defense, and reduce their clean up liability for the site, should additional soil or water contamination from historical site usage or spills be discovered. As such, sufficient documentation of all sources, records, and resources utilized in conducting the inquiry required by this practice must be provided in the written report.

NOTE: This practice does not purport to address any of the safety concerns, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices.

The degree to which an ESA is conducted will vary for each client according to the environmental concerns identified for each property and the local, state and federal regulations in which the site is located. The selection of the ESA scope shall be comprehensive enough to identify the environmental risks associated with the property so they may be properly considered before a business decision involving the real estate transaction is executed.

Phase I Site Assessment Phase I Site Assessment