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Define point-source pollution.
Point-source pollution is pollution that comes from a single, clearly identifiable source, such as untreated sewage flowing out of a pipe into a river.

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What is the plume in point-source pollution?
The plume is the area where the pollution from a point source is strongest.
Define nonpoint-source pollution.
Nonpoint-source pollution is pollution from diffuse sources that are hard to pinpoint, or from many sources spread over a large area, such as pesticide spraying.
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Define point-source pollution.
Point-source pollution is pollution that comes from a single, clearly identifiable source, such as untreated sewage flowing out of a pipe into a river.
What is the plume in point-source pollution?
The plume is the area where the pollution from a point source is strongest.
Define nonpoint-source pollution.
Nonpoint-source pollution is pollution from diffuse sources that are hard to pinpoint, or from many sources spread over a large area, such as pesticide spraying.
True or False?
Point-source pollution is harder to monitor than nonpoint-source pollution.
False.
Point-source pollution is easy to monitor because the type and location of the pollutant are known, while nonpoint-source pollution needs many monitoring stations.
Nonpoint-source pollution that flows with water or enters water is called .
Nonpoint-source pollution that flows with water or enters water is called runoff.
Why is it easier to fine a point-source polluter than a nonpoint-source polluter?
A point-source polluter is easy to fine because the source is known, so regulators can act when it breaks the terms of its permit; nonpoint-source offenders are difficult to find.
What is the primary goal of the Clean Water Act (CWA)?
The primary goal of the Clean Water Act is to restore and maintain the chemical, physical, and biological integrity of the nation's waters.
The CWA controls point-source discharges through a permit system called the National Pollutant Discharge System (NPDES).
The CWA controls point-source discharges through a permit system called the National Pollutant Discharge Elimination System (NPDES).
True or False?
The Clean Water Act addresses only point-source pollution.
False.
The CWA's primary focus is point sources, but it also addresses nonpoint sources such as agricultural runoff and stormwater by recommending strategies like riparian buffer zones.
Which type of ecosystem does the CWA protect because of its role in water quality and flood control?
The CWA protects wetlands, which are important for water quality and flood control.
What does the Safe Drinking Water Act (SDWA) require the EPA to do?
The SDWA requires the EPA to set national drinking water standards, known as Maximum Contaminant Levels (MCLs), and oversee their enforcement by states and localities.
The SDWA applies to all public water systems, defined as systems that serve at least people or 15 connections.
The SDWA applies to all public water systems, defined as systems that serve at least 25 people or 15 connections.
True or False?
The Safe Drinking Water Act sets the standards for bottled water.
False.
The SDWA covers public water systems only; bottled water is regulated by the Food and Drug Administration (FDA).
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