Water Treatment Exam Preparation Grade 2: Questions & Answers: Latest Updated

____ and/or _________ in a water supply can discolor laundry, cause a bad taste in the water, and cause taste problems in beverages such as coffee and tea. (Ans- Iron and/or Manganese Water systems that collect less than _____ coliform samples each month can have 1 positive sample and remain in compliance. (Ans- 40 The maximum contaminant level for bromate is _____ mg/L. (Ans- 0.010 mg/L Water systems must provide at least _____ removal or inactivation of Giardia lamblia cysts between a point where the raw water is not subject to recontamination by surface water runoff and a point downstream before or at the first customer. (Ans- 3-log ____ _______ is the best available technology for removing radium-226 and radium-228 from a water supply. (Ans- Lime softening Color gives the water an unappealing appearance and indicates that _______ _______ may be prese