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7.2: Chapter Quiz

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    38913
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    Chapter Quiz

    1. 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.
    1. indicator
    2. model
    3. log removal
    4. alternative
    1. 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.
    1. a log removal
    2. a maximum contaminant level (MCL)
    3. a secondary maximum contaminant level (SMCL)
    4. a model
    1. 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. 1
    2. 2
    3. 3
    4. 4
    1. 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.
    1. hydrologic studies
    2. microbial examinations
    3. a sanitary survey
    4. laboratory studies
    1. The Surface Water Treatment Rule requires water systems to ________ surface water sources.
    1. filter and disinfect
    2. conserve
    3. aerate
    4. disinfect
    1. 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.
    1. 2-log
    2. 3-log
    3. 4-log
    4. 6-log
    1. 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.
    1. E.coli
    2. Giardiasis lambdia
    3. Cryptosporidium
    4. Coliforms
    1. What is the maximum allowable turbidity in the combined filter effluent?
    1. 0.5 NTU
    2. 1.0 NTU
    3. 3.0 NTU
    4. 5.0 NTU
    1. EPA promulgated the Long-Term Surface Water Treatment Rule to reduce the public health risk associated with ________ in drinking water.
    1. Giardiasis lambdia
    2. Cryptosporidium
    3. Coliforms
    4. E. coli

    7.2: Chapter Quiz is shared under a not declared license and was authored, remixed, and/or curated by LibreTexts.

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