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What if a wastewater matrix causes interference with the analytical method (and therefore, the detection limit is higher than normal)?

April 26, 2017causes detection interference limit matrix method normal wastewater

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What if a wastewater matrix causes interference with the analytical method (and therefore, the detection limit is higher than normal)?

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The discharger must eliminate the interference using the procedures given in EPA’s Guidance on Evaluation, Resolution, and Documentation of Analytical Problems Associated with Compliance Monitoring (EPA 821-B-93-001) or other interference elimination procedures.