Laboratory & Analysis

Whole Effluent Toxicity Testing (WET)

The Bioassay Laboratory at EnviroScience, Inc. provides comprehensive environmental testing, specializing in National Pollution Discharge Elimination System (NPDES) evaluations and compliance. Our experience in biomonitoring extends from bioassay testing to full-scale permit investigations, including Toxicity Identification Evaluations and Toxicity Reduction Evaluations (TIE/TRE) and NPDES permit requirements. All methods IMG_2479used in the performance of these services are in accordance with EPA methods.

EnviroScience provides high-quality environmental services to hundreds of satisfied municipal, industrial, and private sector clients throughout the Midwest and Northeast. We have clients in Ohio, Pennsylvania, West Virginia, Illinois, New York, Michigan, Indiana, Tennessee, and many other states. Our company has an excellent reputation with regulatory agencies on both the state and federal levels. Our confidence in our methodology and the professionalism of our experienced biologists allow us to guarantee that our procedures and reported data will meet all acceptance criteria.

Our Toxicity Testing Services include:

Operational seven days a week, the EnviroScience Bioassay Laboratory provides flexible scheduling, comprehensive sampling, expert consultation, and timely reporting. Quality assurance within the laboratory is achieved through strict adherence to guidelines established by state and federal regulatory agencies, in-house culturing, and a dedicated staff.

Aquatic toxicity tests, also known as bioassays or Whole Effluent Toxicity (WET) Tests, are used to monitor the toxicity of discharge waters. Bioassays are a cost-effective evaluation of potential environmental impacts and provide a measure of the interaction between constituents in a wastewater discharge and the body of water into which it discharges. Aquatic test organisms are subjected to varying concentrations of wastewater under controlled laboratory conditions. Toxicity levels are determined by statistical analysis.

In Action

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Need help with your project?

Our experts are here to discuss your needs and how we can help you move your project forward. Fill out the form below for more information on our services or to request a quote, and we’ll get back to you within 24 hours. If you need a response within an hour or less, please call us at 888-866-8540.

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    Which services are you interested in?

    Wetland Delineation & Permitting
    Environmental Sampling
    Aquatic Threatened/Endangered Species Surveys
    Terrestrial Threatened/Endangered Species Surveys
    Stream/Wetland Restoration
    Bioassay & Sediment Toxicity
    Environmental Inspection (Erosion & Sediment)
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    Few environmental firms in the country retain EnviroScience’s degree of scientific know-how, talent, and capability under one roof. The diverse backgrounds of our biologists, environmental engineers, scientists, and divers enable us to provide comprehensive in-house services and an integrated approach to solving environmental challenges—saving clients time, reducing costs, and ensuring high-quality results.

    Our client guarantee is to provide “Excellence in Any Environment,” meaning no matter what we do, we will deliver on our Core Values of respect, client advocacy, quality work, accountability, teamwork, and safety. EnviroScience was created with the concept that we could solve complex problems by empowering great people. This concept still holds true today as our scientists explore the latest environmental legislation and regulations and incorporate the most up-to-date technology to gather and report data.

    EnviroScience expertise includes but is not limited to aquatic surveys (including macroinvertebrate surveys and biological assessments); ecological restoration; ecological services (including impact assessments, invasive species control, and water quality monitoring); emergency response; engineering and compliance services; endangered mussel surveys; laboratory and analysis; stormwater management; threatened and endangered species; and wetlands and streams (including delineation and mitigation). Further, EnviroScience is one of the few biological firms in the country that is a general member of the Association of Diving Contractors International (ADCI) and offers full-service commercial diving services.