Distribution 1/2 Quiz 1

1

Chief operators never use past records to adjust treatment processes.

1

All water comes in the form of precipitation.

1

Many organisms that cause disease in humans originate with the fecal discharges of infected individuals.

1

Rain water is pure

1

Groundwater is high in dissolved oxygen

1

The impact of a contaminant on surface water depends on the receiving water’s ability to assimilate contaminant

1

An Oligotrophic lake has low nutrient content.

1

reatment plant operators do not need to keep informed of local, state and federal regulations.

1

Local conditions have an influence on methods of managing lakes and reservoirs used for domestic water supplies.

1

Precipitation is high in bacterial count.

1

Color in water is objectionable mainly from the standpoint of health.

1

The specific disease-producing organisms present in water are hard to identify

1

Temperature has no impact on the effectiveness of copper sulfate

1

Excessive Nitrate in drinking water can lead to cancer

1

The Interim Enhanced Surface Water Treatment Rule does not address Cryptosporidium.

1

Measuring biological oxygen demand can be used to indirectly measure the organic content of the water

1

The State’s regulatory program can be less stringent than the US EPA’s program.

1

Primary drinking water standards are not mandatory standards.

1

Stratification develops when a warm layer of water overlies a colder layer

1

Under the Total Coliform Rule the MCL is violated if 5% of the samples collected in a month are total coliform positive.

1

Porosity is the volume of space in a given amount of material.

1

Drawdown is the water level in a well when the pump is on moving water.

1

Suspended matter has little or no effect on copper sulfate treatment.

1

There is no minimum requirement for distribution chlorine residual under the SWTR.

1

The turbidity requirement under the Interim Enhanced Surface Water Treatment rule is <0.3 NTU

1

The ________ is the continuous exchange of water between the earth and the atmosphere.

1

What is the purpose of a water treatment plant?

1

What does the size of a water treatment plant depend upon?

1

All of the following factors influence the concentration of copper sulfate needed for effective control of algae blooms except?

1

What is the purpose of the chemical coagulation process?

1

Which constituent is not a chemical contaminant?

1

A water-bearing geological formation is referred to as a(n)?

1

A 4 log removal rate is equal to what percent?

1

Whenever a chemical algae control program is started, when should monitoring be performed?

1

Plants give off water vapor to the atmosphere through a process called?

1

Organic matter combined with chlorine can create?

1

Which of the following does not influence surface runoff?

1

Surface water runoff such as creeks and rivers collect water from an area of land towards one primary water course and is known as the?

1

When using a river or stream as a water supply, what is a major concern?

1

The area outward from the center of a well that is affected during pumping is called the?

1

The Surface Water Treatment Rule requires the and of Giardia

1

A direct filtration water treatment plant does not include?

1

What is the major type of problem caused by waste water contamination of a domestic water supply?

1

Why must operators constantly monitor raw water quality in a river?

1

What are the primary responsibilities of Water Treatment Operators?

1

Which is not a trophic state of a lake?

1

A disinfected water supply is one in which

1

Which of the following is not considered a point source discharge?

1

Which of the following is not a characteristic of Surface water?

1

What are the typical duties of Water treatment Operators?

1

Drinking water standards are usually categorized as being related to either _ or __.

1

Which is not a layer in a stratified lake?

1

The number of water samples that must be collected each month in a water distribution system is based on?

1

A system whose number of customers exceeds 25 and are full time residents would be categorized as a?

1

As a relate of algae blooms, what happens to organic matter within water supply reservoirs

1

In determining the purity of a water sample, it is usually tested for the presence of coliform bacteria because ____________.

1

What is an example of a non-transient non-community water system?

1

The EPA has imposed drinking water regulations that cover many contaminants including?

1

Water has its greatest density at?

1

Which is not a bacterium?

1

How do nutrients cause water quality problems in domestic water supply

1

Methemoglobinemia is caused by?

1

The "Total Coliform Rule" of the SDWA regulations requires the result of coliform testing to be given as?

1

The first time a distribution water sample is returned with a "positive" test result, one should?

1

Water shed protection does not include protective measures against?

1

The algae that causes most of the problems in Southern California's lakes is called?

1

Which is not a characteristic of an Oligotrophic lake?

1

Which activity is the US Environmental Protection Agency (USEPA) not responsible for?

1

What is a potential cause of objectionable tastes and odor in a domestic water supply

1

What is the primary purpose of vegetation removal in areas where new reservoirs are to be formed?

1

A water system must give a Tier 1 public notice for?

1

Which outcome is not a result of de-stratification and re-aeration?

1

The surface water treatment rule requires which removal rate for giardia?

1

The Interim Enhanced Surface Water Treatment Rule requires the maintenance of a minimum distribution chlorine residual of?

1

Which item did the 1974 Safe Drinking Water Act not establish?

1

If algae blooms are a problem the operating agency should develop capabilities for obtaining what types of information?

1

The effectiveness of copper sulfate treatment is affected by?

1

What problems may be created for operators by algae blooms in domestic water supply reservoirs?

1

Additional bacteriological monitoring must be conducted?

1

Algae blooms in lakes and reservoirs can be controlled by?

1

The area in a lake where there is sufficient light and nutrients to cause aquatic growth is called the?

1

The inactivation of pathogenic organisms is called?

1

A change in the pH in a reservoir between the daytime and the night time is cause by?

1

Which is not a major contributor of Nitrate contamination in groundwater?

1

Alkalinity can be defined as?

1

A treatment plant can be defined as?

1

State Drinking Water Regulations can be found in?

1

Turbidity is the measurement of?

1

Compliance sampling must be reported to state by?

1

The zone in a lake that is considered "open water" is the?

1

What is the volume in cubic feet of a circular clarifier 8 feet deep and 40 feet in diameter?

1

What is the volume in gallons of a rectangular settling basin 8 feet deep, 12 feet wide, 50 feet long?

1

How many pounds of copper sulfate will be needed to dose a reservoir with 0.6 mg/l copper? The reservoir volume is 20 million gallons. The copper sulfate is 25% copper. Assume the alkalinity of 40 mg/l.

1

A reservoir has an average length of 1196 ft and an average width of 961 ft, the alkalinity is 175 mg/l. How many pounds of CuSO4 is needed?

Created September 2018

Distribution 1/2 Quiz 1

Chief operators never use past records to adjust treatment processes.

All water comes in the form of precipitation.

Many organisms that cause disease in humans originate with the fecal discharges of infected individuals.

Rain water is pure

Groundwater is high in dissolved oxygen

The impact of a contaminant on surface water depends on the receiving water’s ability to assimilate contaminant

An Oligotrophic lake has low nutrient content.

reatment plant operators do not need to keep informed of local, state and federal regulations.

Local conditions have an influence on methods of managing lakes and reservoirs used for domestic water supplies.

Precipitation is high in bacterial count.

Color in water is objectionable mainly from the standpoint of health.

The specific disease-producing organisms present in water are hard to identify

Temperature has no impact on the effectiveness of copper sulfate

Excessive Nitrate in drinking water can lead to cancer

The Interim Enhanced Surface Water Treatment Rule does not address Cryptosporidium.

Measuring biological oxygen demand can be used to indirectly measure the organic content of the water

The State’s regulatory program can be less stringent than the US EPA’s program.

Primary drinking water standards are not mandatory standards.

Stratification develops when a warm layer of water overlies a colder layer

Under the Total Coliform Rule the MCL is violated if 5% of the samples collected in a month are total coliform positive.