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Toxicity Identification Evaluations

Toxicity Identification Evaluations (TIE) are toxicity studies that attempt to characterize and then identify and confirm the cause of observed effluent toxicity.  The US EPA has developed specific, multi-phase guidelines for these studies, which progress the effluent through a series of treatments, testing, and analysis.  Toxicity may be transient and complicated by co-factors and by background toxicity sources. However, these studies allow the discharger to focus its resources on the toxicants and developing a treatment program to reduce the toxicity and come into compliance with NPDES permit requirements.

For 17 years, Marinco Bioassay Laboratory has been performing freshwater and saltwater TIEs to address acute and chronic toxicity issues for NPDES-permitted industrial and municipal wastewater dischargers.  Our range of knowledge regarding toxicants, toxicity observations, and treatment enable us to provide an intelligent approach to toxicity identification.

Please please call (800-889-0384) or email Jason Weeks to discuss your wastewater toxicity issues.

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