Hexavalent chromium must be removed from the wastestream before metal precipitation can be done for this reason:

Study for the Colorado Wastewater (WW) Operator D Test. Enhance your skills with flashcards and multiple-choice questions, each offering hints and explanations. Prepare for success!

Multiple Choice

Hexavalent chromium must be removed from the wastestream before metal precipitation can be done for this reason:

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