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Site Investigation & Assessment

site investigation

Site Investigation & Assessment


The first step in determining the type and extent of soil contamination is site investigation & assessment. The purpose of the study is to determine whether a soil and groundwater investigation followed by remediation is necessary or not. The assessment is done in the following three phases.


Phase I: Conceptual model and desk study


First, a conceptual model of the site and surrounding area is created. The purpose of which is to identify any potential sources of contamination (e.g., an underground oil tank), potential receptors (those affected by contamination, such as humans and environment), and the pathways that link the two (e.g., drinking water). A conceptual model is made of up pictures, diagrams, and descriptions.


The next step is a desk study. This research will identify whether the site has a history of contaminative uses, such as industrial and manufacturing activities, as well as the identification of receptors and pathways. The investigation includes the following: site history (previous and current uses); geology, hydrology, and hydrogeology of the site; records obtained from the owner and regulatory bodies; and a site walk over.


Phase 2: Intrusive investigation


This phase may consist of two investigations: exploratory investigation and main investigation. First, an exploratory study is conducted to see whether the conceptual model is correct. It may involve some sampling and analysis of the soil, soil gas, surface water, and groundwater. This is followed by the main investigation, which involves the more extensive collection and analysis of soil and water. Its purpose is to obtain all the information necessary for the assessment of human and environmental risks.


Phase 3: Remediation strategy


Remediation is the process of the decontamination of the soil and water. This phase involves the formulation of a strategy for the removal of polluted soil, control of contamination, and treatment of contaminated soil and water using physical, chemical and biological processes. A remediation report is prepared and submitted to the regulatory authorities before work can commence. The report details the objectives, methodology, and procedures of the proposed remedial works. At the end of the remediation works, a validation report is prepared to demonstrate what remedial actions were taken and whether they achieved the stated targets.


Why should you hire us for site investigation and assessment?


We specialize in site investigation and assessment and have many years of experience. But the real reasons you should hire us are:

  • Custom solutions: Every site is different and needs a custom solution. We specialize in creating site-specific solutions
  • Cutting-edge technology: We use the latest cutting-edge technology and equipment, which ensures accuracy and precision
  • Fewer days and lower costs: We strive to complete each project in the shortest time possible so as to minimize the costs to our customers
  • Environmentally-friendly: We are committed to protecting the environment and take pains to make sure that our solutions are environmentally-friendly
  • Regulatory requirements: We have the expertise and experience in addressing regulatory requirements for site investigation assessment.


Call us today for a professional site investigation assessment


If you need a site investigation & assessment to be done on your property, get in touch with us. You can trust us to provide the highest-quality, environmentally friendly and economical service. Give us a call or send us an email. One of our knowledgeable and friendly site investigative and assessment representatives will be happy to assist you.

The counties we serve are Hudson, Mercer, Middlesex, Monmouth, Ocean, Morris, Bergen, Passaic, Union, Essex, Sussex, Warren, Hunterdon, and Somerset.

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