Investigation and Remediation

Our experienced hydrogeologists, geologists, engineers and scientists are the best in the field and have the capabilities to deliver site Investigation and Remediation services for a variety of businesses, industrial facilities and municipalities. EnviroForensics engineers are specialized in providing innovative, risk-based approaches to cleaning up soil and groundwater contamination in order to bring site closure to those problems. Providing unsurpassed quality service, EnviroForensics quickly characterizes the extent of the problem and implements cost-effective corrective measures that minimize business disruption and facilitate property transfers and site closure. You can count on EnviroForensics to provide The Best Science and The Best Strategy™.

EnviroForensics provides full-service turnkey engineering and remediation services, which include evaluating and analyzing remedial alternatives, conducting bench scale and pilot scale tests, treatment system design, permitting and construction, and system operation and maintenance. Our engineers use the most current proven and demonstrated technologies: In situ biological and chemical remediation, as well as design and implementation of remote control and telemetry systems. EnviroForensics provides closure of environmental cases at industrial and commercial sites nationwide and is fully insured under Contractor’s Pollution Liability Insurance.

Primary Service Areas

Site Investigation

At EnviroForensics, our experience is vast. EnviroForensics has performed hundreds of site and remedial investigations throughout the United States. These projects involve Phase I and II Environmental Site Assessments to assess potential site environmental liabilities, as well as to develop project work plans, negotiate with regulatory agencies, and conduct comprehensive and legally defensible site characterizations. Methods of investigation involve drilling exploratory borings, drilling and installing monitoring wells, conducting geophysical logging, evaluating preferential migration pathways, collecting soil gas samples, conducting sanitary sewer investigations, performing aquifer pump tests, creating and running groundwater models, and conducting vapor intrusion assessments. 

EnviroForensics emphasizes establishing good working relationships with agency personnel from the start so that the planning effort can be efficient. A key element of success in performing remedial investigations is interpreting the local geology. Exploratory borings and detailed stratigraphy are used to delineate the vertical and horizontal extent of the contamination. Hydraulic conductivity testing is conducted to determine the transmissitivity of the water bearing units and to determine the potential for vertical migration of chemical contaminants. Technical reports are prepared both electronically and in hard copy to provide a comprehensive evaluation of the site conditions.

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Phase I Assessment

The purpose of a Phase I Environmental Site Assessment is to conduct “all appropriate inquiry” into the previous ownership and uses of a property consistent with good commercial and customary practice. A Phase I ESA is generally the initial review of a site to determine potential liabilities associated with the property. A properly conducted and professionally evaluated Phase I determines the presence or absence of recognized environmental conditions that may require further investigation. It principally encompasses a historical review of the site and surrounding area land use and environmental records, interviews of persons with knowledge of the property and locale, and a site reconnaissance performed by an environmental professional.

We conduct Phase I Environmental Site Assessments in conformance with the scope and limitations of the American Society for Testing and Materials’ (ASTM) E1527-05 “Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process”, and 40 CFR part 312 “Standards for Conducting All Appropriate Inquiries” developed by the Environmental Protection Agency to meet the due diligence requirements for the purpose of establishing defenses which may be available under the CERCLA. These defenses include the innocent landowner, bona fide prospective purchaser and contiguous property owner.

Phase II Assessment

If the results of the Phase I assessment indicates potential environmental contamination, a site-specific work plan is then developed for performing a Phase II Environmental Site Assessment.The Phase II investigation involves sampling and analysis of soil and/or groundwater associated with the potential areas of concern. Properly planned and executed sampling events should determine any contaminant impacts, delineate the contaminated area, and evaluate all affected media. If contaminants appear to have migrated from the subject property, off-site sampling may also need to be conducted.

We provide Phase II site characterizations following established standard operating procedures based on Environmental Protection Agency (EPA) and/or state guidelines. Our team thoroughly evaluates the specific area of concern in relation to applicable environmental rules and statutes. A sampling plan is then prepared to achieve meaningful data based on the proposed future use of the site.

Sampling and Analysis 

  • Hazardous waste analysis
  • Spill site analysis
  • Air quality analysis
  • Wastewater analysis
  • Compliance monitoring 

EnviroForensics performs the above sampling and analysis in strict adherence to state and federal regulations. Proper field and laboratory quality control, as well as quality assurance protocol for water, soil and air sampling (including a minimum of duplicates and field, trip, and method blanks), are employed for data accuracy.

Risk Assessment

Risk assessments establish the potential public health and environmental risks due to site contamination and are used to develop site-specific cleanup criteria to be used in remediation. EnviroForensics conducts risk assessments in accordance with applicable State and U.S. EPA guidelines, including its Superfund Public Health Evaluation Manual and Risk Assessment Methodology for Hazardous Waste Management. The potential exposure pathways, contaminant concentrations and potential receptors are determined to assess the degree of exposure. The physical, chemical ,and toxological properties of chemicals of concern are appropriately used to estimate the probability of human health impacts (ingestion, dermal contact and inhalation exposure routes). Chemical concentrations, which provide acceptable risk, are considered as site-specific cleanup objectives. Appropriate remediation systems are identified during the feasibility study for site clean-up.

Remedial Alternatives Analysis And Feasibility Study

The purpose of the remedial alternative analysis and feasibility study is to identify, develop and evaluate potential remedial action alternatives (including no action) for treatment, containment, or disposal of contaminated site media (soil, groundwater, sediment, waste, etc.) and to ultimately select the most cost effective alternative for the site which will be acceptable to regulatory agencies and the public. The objective is to identify remedial actions that are protective of human health and of the environment and that comply with any applicable or relevant and appropriate requirements and to meet or exceed the clean up objective in the most cost effective way.

Site Remediation

We understand business, and EnviroForensics specializes in providing quality, site remediation services that minimize business disruption and incorporate the state-of-the-art proven technologies to provide cost effective and rapid site clean-ups. EnviroForensics has been involved with projects that have successfully used in-situ injection of microbes, hydrogen release compounds, permanganate, and cheese whey, in addition to employing soil vapor extraction, UV-oxidation, air sparging, and hydraulic plume containment. EnviroForensics staff personnel have prepared operation and maintenance manuals for remedial systems and are currently engaged in providing operations and maintenance services for large superfund sites projects.

Operation and Maintenance

Highly qualified project teams are experienced in system design and operational controls that provides continuity throughout the design, construction and system oversight (functional, performance, and startup) for successful ongoing operation and maintenance programs of a variety of facilities including large remediation systems and wastewater treatment facilities.

Developing Operation and Maintenance Programs and Manuals

EnviroForensics staff members have extensive experience in the development of Operation and Maintenance Programs and associated program manuals. Working with equipment vendors and a client’s Operation and Maintenance staff, EnviroForensics develops a practical user-friendly program to keep the system in optimal performance while meeting strict regulatory guidelines. Manuals typically contain information on normal operations, abnormal conditions, special conditions and emergency response procedures.

Advisory and Training

Advisory and Training services are identified at the conception of each project and are implemented during the design and construction phases. On-going monitoring and auditing services continually evaluate the effectiveness of Operation and Maintenance programs. Monitoring can begin on a continuous basis then decrease to routine technical and management audit visits scheduled at agreed upon intervals for reporting requirements and system optimization. Staff members coordinate and conduct Training for client management and staff personnel. Training covers system maintenance activities and milestones so that personnel understand all system components and operational aspects of the program. Throughout the program implementation, EnviroForensics engineer work alongside client personnel in order to successfully achieve the program objectives and goals. Engineers also train client personnel in environmental and permitting requirements including health and safety measures, risk management planning, and emergency responses.

Management of Operation and Maintenance

Management of Operations and Maintenance by EnviroForensics provides the client with experienced professional staff that can undertake all or part of the daily operation of the treatment systems. Maintenance services may be contracted to EnviroForensics. EnviroForensics can also assume responsibility for the total operation of the treatment system maintenance. During the period of the contract, EnviroForensics employs all operating personnel, assumes full responsibility for the satisfactory performance of the system and associated liability, and has responsibility for the transfer back of the system in a satisfactory condition to the client. In addition to having professional Errors and Emissions liability insurance, EnviroForensics maintains Pollution Liability Insurance.

Long-term Stewardship

When assessing risk, it’s clear that regulatory closure should be viewed as an interim milestone. Maintaining short sighted viewed during remedial planning leads to favoring provisional savings over long-term costs. Viewing cleanup through the lens of a timeline extending into perpetuity, there’s an obvious need to balance present-day remedial efforts with proper long-term stewardship (LTS) and the associated costs of implementation, future liabilities and legal damages to third-parties. A well-informed balance between short-term and long-term expenditures will maximize potential savings.

EnviroForensics aggressively pushes for the most thorough remediation strategy to ensure that our clients won’t have to deal with any lingering liabilities or health hazards in the future, which provides you more options for redeveloping the property.

Contact us to see how we can help you with your environmental
investigation and remediation


Brad Lewis, CHMM
Principal Scientist
Email Brad