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Review of Case Materials
Reviews records, documents, testimony, data, and other relevant materials and consults with counsel regarding technical issues related to the matter.
Provide Expert Analysis
Applies specialized knowledge and experience to evaluate the technical or professional issues involved.
Form Expert Opinions
Develops independent, supportable opinions based on the available evidence and relevant standards.
Prepare Expert Reports
Prepares clear, well-supported expert reports outlining methodology, analysis, findings, and opinions.
Provide Deposition Testimony
Explains findings and opinions under oath and responds to questioning during deposition testimony.
Testify in Court
Presents specialized findings and opinions clearly to judges, juries, arbitrators, or other decision-makers.
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An activated carbon expert witness can examine the carbon media itself along with supplier specifications, laboratory testing, contaminant concentrations, system configuration, operating conditions, and replacement or regeneration history. The investigation may focus on whether the selected carbon had appropriate adsorption characteristics for the target substance and whether actual operating conditions were consistent with the expected performance of the media.
Breakthrough occurs when a contaminant begins appearing downstream of the carbon bed at a level indicating that the media is no longer providing the intended removal. An expert may examine contaminant loading, available adsorption capacity, flow and contact conditions, competing substances, temperature, moisture, and the age or condition of the carbon to investigate why breakthrough occurred when it did.
Granular activated carbon is commonly used as a bed through which a liquid or gas passes, making bed depth, flow, contact time, pressure conditions, and replacement or regeneration relevant to performance. Powdered activated carbon is introduced differently and can raise questions about dosage, mixing, contact time, separation, and the characteristics of the carbon selected for a particular contaminant.
Useful evidence may include inlet and outlet contaminant measurements, carbon loading and replacement records, regeneration history, flow rates, bed temperatures, pressure differential, moisture conditions, sampling data, equipment specifications, and carbon supplier documentation. Trends across those records can show whether performance deteriorated gradually, changed after an operating event, or differed from the assumptions used to select or size the carbon system.
