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Flashcards in Chapter 9 Water Management And Control Deck (32)
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1

What factors contribute to water quality?

Water quality is first depending on the source of supply to the buildings or site and then on the conditions of subsequent infrastructure and components: piping, valves, meters, backflow preventer’s, sanitary another fixtures, pumps, water tanks, and storage vessels.

2

Describe the managers responsibility for treating process waste water.

The manager’s responsibility would be to ensure that the waste water is treated prior to disposal.

For small quantities it is often more cost-effective for the generator of the west to collect and store it for later removal treatment by an off site contractor in waste management.

3

What are some of the conservation and sustainability measures that can be taken regarding potable water?

Low flow fixtures

Recycle/reuse of gray water

Low-water-demand landscaping or xeriscaping

Drip irrigation and soaker hoses

Adherence to LEED exterior maintenance requirements

A documented plan to maintain and service detention and retention ponds

4

Defined the term gray water.

Gray water – wastewater generated from domestic activities such as dishwashing, laundry, and bathing. Great water can compromise 50 to 80% of residential waste water generated from all of the houses sanitation equipment except for the toilets.

5

Which compounds should not be discharged to directly into the sanitary sewer system?

Phosphates
Refined oils, petroleum, and gasoline organics (grease trap or oil-water separator requires)
Fertilizers
Pool/spa Treatment chemicals
Paints/sealants
Biohazard wastes, blood, pathogenic lab waste

6

When should oil water separators be used?

Environmental regulations require the use of oil – water separators in areas where there is a risk of petroleum product leakage, such as at gas stations, will refineries, take farms, and fuel – oil delivery services.

They may also be installed were stormwater discharges into environmentally sensitive areas such as fish or waterfall breeding grounds.

Separators are typically located below ground level and are considered confined spaces requiring special training to personal entry for inspection, service, or cleaning

7

A new suburban community is being developed, and construction is underway on a small neighborhood of single-family homes. In the center of the homes a detention pond was placed for stormwater runoff. How does the detention pond meet regulations for Stormwater management?

A. Allows the pond to temporarily flood, subsequently emptying out any controlled rate to a natural body of water
B. Allows an increased volume of run off to enter the pond while limiting the amount of water leaving the pond to a constant rate
C. Directs stormwater to ground water through permeable soils
D. Redirects stormwater from building foundations to prevent damage

B. Allows an increased volume of runoff to enter the pond while limiting the amount of water leaving the Pond to a constant rate

8

Due to problems with the pump stations, the municipal sewer system is unable to treat a medical centers waste water. What is the managers responsibility for treating the waste water?

A. To pretreat, filter, treat, and raise the effluent quality of the water for discharge to the receiving environment
B. To engage in a two step aerobic process to remove nitrogen and disinfect the water
C. To undertake treatment of process waste water on site prior to discharge to the sewer system
D. To assume primary and secondary treatment for Eventual disposal or reuse

A. To undertake treatment of process waste water on site prior to discharge to the sewer system

9

What type of water pollution occurs when rain flows off your property, Downey Street, and into a stream?

A. non point
B. Point source
C. Processed waste water
D. Indirect

A. Nonpoint

10

What are the sources of water pollution?

Process wastewater-water used in manufacturing process and then disposed of

Stormwater-runoff generates when precipitation from rain or melting snow flows over surfaces and does not percolate on the ground

Point source-discharged at end of pipe

Non point-stormwater flows across surface and into stream or natural body of water

Direct-stormwater or wastewater discharged from facility directly to a natural body of water.

Indirect-stormwater or wastewater discharged from facility indirectly to a natural body of water.

11

What is the policy and process for detention ponds?

Detention ponds are man-made ponds with an outlet structure designed to let out only a certain amount of water over a given period.

During a storm, the runoff is discharged to a retention pond, which allows an increased volume of water or runoff to enter the pond while limiting the amount of water leaving the pond to a constant rate

12

A medical office building has doctors offices as well as a physical therapy clinic with hot tubs. Which two compounds will they most likely have to prevent from being discharged into the sanitary sewer system?

A. Refined oil’s, petroleum and paints/sealants
B. Biohazard waste and pool/spa treatment chemicals
C. Phosphates and pool/Spa Treatment chemicals
D. Pesticides and fertilizers

B. Biohazard waste into pool/spa treatment chemicals

13

Stormwater runoff from a shopping mall roof is collected through a series of gutters and piped into a nearby pond. This is an example of what the stormwater discharge process?

A. Inverse discharge
B. Ancillary discharge
C. Non-Point source discharge
D. Direct point source discharge

D. Direct point source discharge

14

Wastewater discharge falls into which categories?

Black water-Waste water associated with human waste discharge from fixtures such as toilet, urinals, and be days.

Gray water – wastewater generated from domestic activities such as dishwashing, laundry, and bathing. Great water can compromise 50 to 80% of residential waste water generated from all of the houses sanitation equipment except for the toilets.

15

Waste water from sinks, dishwashers, and garbage disposals is called:

A. Black water
B. Brown water
C. Gray water.
D. White water

C. Gray water

16

Most POTABLE water that enters a building discharges as waste water. All of the following or types of waste water EXCEPT:

A. Black water
B. Gray water.
C. Spring water
D. Stormwater

C. Spring water

17

Waste water associated with human waste discharge from fixtures like toilets is referred to as:

A. Black water.
B. Gray water.
C. Whitewater.
D. Sullage

A.. Black water.

18

Speedy’s quick lube service station uses petroleum products on a daily basis. Environmental regulations require them to use oil water separator‘s due to the risk of leakage. Under what other circumstances are oil water separator is required?

A. Stormwater discharges into environmentally sensitive areas
B. Wastewater discharges into residential areas
C. Chemically polluted water discharges into septic systems
D. Biological waste discharges into groundwater

A.. Stormwater discharges into environmentally sensitive areas

19

Describe the storm water discharge process.

Most warm water discharge from a facility and site is considered a direct point source discharge

Direct-coming from the site directly to a natural body of water

Point source-comes from pipes, sewers, ditches, or anything confining

20

The built environment requires, at a minimum, what to water management systems?

A. Process waste water and stormwater
B. Potable and non-potable water
C. Potable and process water
D. Non-potable and stormwater

B. POTABLE and NONPOTABLE

21

By what criteria can water be deemed polluted?

Waste water is determined to be polluted when the water quality is compromised by effects, processes, or materials that are derived from human activities, as opposed to those occurring in bio physical environment without human influence.

Water is also considered polluted when it is no longer appropriate for human consumption or no longer retains the ability or characteristics necessary to support marine fauna or flora

22

What types of dangers can lead to water purity concerns?

Lead
Taste
Odor
Turbidity
Copper
Iron
pH
Biological
Backflow

23

Mike notices the tapwater at work is slightly discolored in the lurch the maintenance staff of the issue. In thinking about a solution, the maintenance staff knows that water quality is dependent on what two factors?

A. The source of supply to the building in the condition of the infrastructure
B. The chemical characteristics of the water and it’s ALKALINITY
C. The pH measurement of the water and the buildings waste management system
D. Water filter ration and purification

A.. The source of supply to the building in the condition of the infrastructure

24

All of the following are criteria for polluted water EXCEPT:

A. The water quality is compromised by affects, processes, or materials derived from human activity.
B. It is no longer appropriate for human consumption
C. It no longer retains the ability or characteristics necessary to support marine flora and fauna
D. An elevated temperature resulting in oxygen depletion, affecting fish and other animal populations

D. An elevated temperature resulting in oxygen depletion, affecting fish and other animal populations

25

What is black water?

Black water-Waste water associated with human waste discharge from fixtures such as toilet, urinals, and be days.

26

To water purity concerns that are subjective and open to interpretation are:

A. Turbitity and pH
B. Taste and odor
C. Biological and turbidity
D. Odor and biological

B. Taste and odor

27

All of the following are goals of the clean water act EXCEPT:

A. Eliminating releases of large amounts of toxic substances into the water

B. Eliminating additional water pollution by 1985

C. Ensuring that water reaches healthy oxygen levels to serve as a safer habitat for a terrestrial and aquatic life by 1984

D. Ensuring that surface waters would meet standards necessary for human sports and recreation by 1983.

C. Ensuring that water reaches healthy oxygen levels to serve as a safer habitat for a terrestrial and aquatic life by 1984

28

To reduce the use of POTABLE water in his office building, Louis installs a sand filter ration system to reuse low contaminant waste water for flushing toilets and irrigation. What conservation and sustainability measure did Louis implemented?

A. Low flow fixtures
B. Low water demand landscaping
C. Drip irrigation
D. Recycling of gray water

D. Recycling of gray water

29

Which goals was the clean water act created to achieve

Illuminating releases of large amounts of toxic substances into the water

Illuminating additional water pollution by 1985

Ensuring that surface waters would meet standards necessary for human sports and recreation by 1983

30

What are four types of water management systems?

POTABLE water systems – delivery, management, distribution, storage, and treatment, if required

NONPOTABLE wastewater systems – removal of sanitary waste from the facility and treatment, if required

Process waste water systems – collection, storage, treatment, and discharge of liquid waste from operations other than sanitary waste

Storm water systems – dispersal, detention/retention, and treatment, if needed