9.2: Chapter Quiz
- Page ID
- 38926
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- In the Code of Federal Regulations, 40CFR 141.2, a sanitary survey should be conducted every ______.
- one per year
- every two years
- every five years
- every six years
- EPA uses the __________ to collect data for contaminants suspected to be present in drinking water, although they do not have health-based standards set under the Safe Drinking Water Act.
- Maximum Contaminant Level
- Maximum Contaminant Level Goal
- Unregulated Contaminant Monitoring
- Secondary Maximum Contaminant Level
- Which of the primary contaminants has an action level rather than an MCL?
- THMs and HAA5s
- Arsenic
- Mercury
- Lead and Copper
- In the Code of Federal Regulations Reference: 40 CFR 141.62, the amounts of cadmium that are found in natural waters in the United States is small. Waste discharges from the electroplating, photography, insecticide, and metallurgy industries can increase cadmium levels. The most common source of cadmium in drinking water is from galvanized pipes and fixtures. What is the MCL and MCLG for Cadmium?
- 5 ppb
- 50 ppb
- 5 ppm
- 50 ppm