Environmental Technology, Inc. (EN TECH) provides our clients with quality site
remediations that are timely and cost-effective. Our staff of geologists and
engineers work closely together to design effective remediation systems that address
site-specific conditions and regulatory compliance objectives.
Contaminant Plume Analysis and Data Interpretation
The key to effective site remediation lies in a quality site characterization identifying
the vertical and lateral extent of soil contamination and the degree and extent of
groundwater impact. This information can be used for mass-balance calculations for
contained contaminants and provides the basis of the remedial action. The
characterization data guides the design of feasibility testing and contaminant migration
analysis necessary for choosing appropriate remedial actions. In addition, risk
assessment analyses provide information in the development of cleanup criteria and
evaluating response to threats of sensitive receptors, such as drinking water wells.
Once the parameters of the contaminant plume have been defined and sensitive receptors
have been identified, feasibility testing should be performed to develop an understanding
of the soil and/or groundwater characteristics. Data can be developed on the
response of contaminant vapors, groundwater flow or bacterial action by applying
perturbations to the subsurface soils and groundwater aquifer. The data collected
during feasibility testing can be used in modeling contaminant response to applied
remedial systems. This allows the remediation engineer to evaluate remedial
scenarios and perform cost-benefit analyses in choosing appropriate action.
This cost-benefit analysis incorporates the appropriate remedial actions evaluated through
feasibility testing with the client's goals and timeframe and the regulatory compliance
objectives to arrive at the most cost-effective and least burdensome remedial action for
Development of Corrective Action Plans and Remedial
EN TECH's staff has extensive experience in corrective action planning and remedial
design. A variety of techniques are available for contaminant remediation.
The corrective action plan (CAP) evaluates the technically available actions, their
feasibility for the contaminants of concern, contaminant concentrations and site-specific
factors to select appropriate and applicable actions. This is followed by a
cost-benefit analysis incorporating the relative costs of each selected action to the site
objectives of the client's timeframe and budget and the regulatory requirements to arrive
at an action of choice. The chosen action is developed into a conceptual design for
The CAP is submitted to ADEQ for review and approval. Once approved the CAP is
implemented by preparing a detailed system design specification. The specification
is sent for bids from system vendors and remedial construction contractors.