7.2: Chapter Quiz
- Page ID
- 38913
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- Total coliforms are used as a(n) _______ of the possible presence of pathogens in drinking water. Total coliforms are used to determine the adequacy of water treatment and the integrity of the distribution system.
- indicator
- model
- log removal
- alternative
- The Revised Total Coliform Rule establishes _________for E. coli and uses E. coli and total coliforms to initiate a find and fix approach to address fecal contamination that could enter into the distribution system.
- a log removal
- a maximum contaminant level (MCL)
- a secondary maximum contaminant level (SMCL)
- a model
- Within 24 hours of learning of a Total Coliform positive routine sample result, at least ____ repeat samples must be collected and analyzed for total coliform.
- 1
- 2
- 3
- 4
- States are required to conduct __________ of all groundwater systems in order to identify significant deficiencies, including deficiencies which may make a system susceptible to microbial contamination.
- hydrologic studies
- microbial examinations
- a sanitary survey
- laboratory studies
- The Surface Water Treatment Rule requires water systems to ________ surface water sources.
- filter and disinfect
- conserve
- aerate
- disinfect
- In order not to be subject to triggered source water monitoring under the Groundwater Rule, a groundwater system can notify the state that it provides at least _______ treatment of viruses using virus inactivation, or removal, before or at the first customer.
- 2-log
- 3-log
- 4-log
- 6-log
- The Long-Term Surface Water Rule establishes risk-targeted treatment technique requirements to control _________ in PWSs using surface water or groundwater under the influence of surface water.
- E.coli
- Giardiasis lambdia
- Cryptosporidium
- Coliforms
- What is the maximum allowable turbidity in the combined filter effluent?
- 0.5 NTU
- 1.0 NTU
- 3.0 NTU
- 5.0 NTU
- EPA promulgated the Long-Term Surface Water Treatment Rule to reduce the public health risk associated with ________ in drinking water.
- Giardiasis lambdia
- Cryptosporidium
- Coliforms
- E. coli