Drinking Water Contaminants and SDWA

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Questions and Answers

What is the concentration range of pharmaceutically active compounds detected in the Santa Ana River?

  • mg/L
  • ng/L
  • µg/L (correct)
  • pg/L

What is the primary source of water for the State Water Project, which serves 22 million people?

  • Santa Ana River
  • Sacramento River (correct)
  • Chino Creek
  • San Tomoteo Creek

What is the main focus of the sampling sites selected for the National Reconnaissance study by Kolpin et al. in 2002?

  • Areas susceptible to contamination from human, industrial, and agricultural wastewater (correct)
  • Areas with low levels of water pollution
  • Areas with high levels of biodiversity
  • Areas with low human population density

What is the trend observed in the history of detection limits over the years?

<p>Decreasing detection limits (A)</p> Signup and view all the answers

What is the main purpose of the Contaminant Candidate List (CCL) maintained by the EPA?

<p>To identify new drinking water contaminants (D)</p> Signup and view all the answers

What is the purpose of the wastewater treatment plant (WWTP) in the San Tomoteo Creek watershed?

<p>To treat wastewater before discharge into the San Tomoteo Creek (A)</p> Signup and view all the answers

What type of contaminants are being referred to in the context of ' Constituents of Emerging Concern'?

<p>Pharmaceutically active compounds and trace organic compounds (C)</p> Signup and view all the answers

What is the primary connection between water and disease, according to the text?

<p>Presence of pathogens and microorganisms (A)</p> Signup and view all the answers

Which of the following organizations has evaluated CECs?

<p>All of the above (D)</p> Signup and view all the answers

What is the primary focus of the NATIONAL WATER QUALITY MANAGEMENT STRATEGY?

<p>Managing health and environmental risks (B)</p> Signup and view all the answers

What is the term used to describe compounds that interfere with one or more of the estrogen, androgen, thyroid, or adrenal systems?

<p>Endocrine Disrupting Compounds (EDCs) (B)</p> Signup and view all the answers

What is the timeframe for the evaluation of CECs, according to the text?

<p>2000-2025 (C)</p> Signup and view all the answers

What percentage of feminization was observed in fish at the Boulder Creek, CO treatment level?

<p>Up to 77% (C)</p> Signup and view all the answers

What type of compounds are PFAS, Nitrosamines, and unregulated DBPs examples of?

<p>Unregulated Contaminants (D)</p> Signup and view all the answers

What is the primary goal of wastewater treatment in relation to disease prevention?

<p>To disinfect wastewater to prevent the spread of disease (A)</p> Signup and view all the answers

What is the term used to describe the process by which chemicals are removed from wastewater?

<p>Filtration (C)</p> Signup and view all the answers

What is the term used to describe the compounds that are used in personal care products and are also found in wastewater?

<p>Pharmaceuticals and Personal Care Products (PPCPs) (D)</p> Signup and view all the answers

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