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WELL AP 7.11.2020 > Water Concept > Flashcards

Flashcards in Water Concept Deck (35)
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1
Q

How much water should women and men drink?

A

W - 2.7 L

Men - 3.7 L

2
Q

How many deaths annually attributed to unsafe water?

A

2 million

3
Q

30 - Fundamental Water Quality - What are the two major indicators for the presence of other contaminants? What are their limits?

A

Turbidity (<1.0 NTU)

Total Coliforms (0)

4
Q

31 - Inorganic Water Cotaminants/Dissolved Metals (6) & Filter

A

CLAMAN: Copper Lead Arsenic Mercury Antimony Nickel

Reverse Osmosis or KDF

5
Q

32 - Organic Pollutants/Water Contaminants (8), Filter and Health Impacts (3)

A

SBEV TXT PCB

Styrene Benzene Ethylbenzene Vinyl

Toluene Xylenes TCE

PCBs

Activated carbon filter

cancer immune deficiencies nervous system damage

6
Q

33 - Ag contaminants: what % of surface streams and groundwater contaminated in the ’90s

A

all streams in ag/urban/mixed use areas; 30-60% of groundwater

7
Q

33 - Ag contaminants - water must meet limits for what 4 chemicals and which fertilizer?

A

Atrazine

Simazine

Glyphosate

2,4-D

Nitrates less than 10 mg/L

8
Q

34 - Public Water Additives: Two disinfectants?

A

chlorine

chloramine

9
Q

34 - Public Water Additives: Two disinfectant byproducts (cancer & kidney damage)

A

trihalomethanes (THM)

halocetic acids (HAAs)

10
Q

34 - Public Water Additives: what are the limits for flouride?

A

less than 4.0 mg/L

11
Q

35 - Periodic Drinking Water Quality Testing: how often is testing done and reports submitted? what tested for (4)?

A

tested quarterly reports submitted annually, kept for 3 years

CLAM: Copper, Lead, Arsenic, Mercury

12
Q

36 - Water Treatment - What are the 4 types of contaminants and removal technique for each?

A

organic compounds / activated carbon

sediments / filter suspended solids

microbial / UVGI or NSF filter

Legionella / hazard analysis

13
Q

37 - Drinking Water Promotion - what affect taste of water? (8)

A

SMAZICS -TDS

Sodium Manganese Aluminum Zinc Iron Chloride Sulfate

Total Dissolved Solids

14
Q

37 - Drinking water Promotion - Where should water dispensers be located?

A

100 ft of all parts of regularly occupied space

15
Q

How often are water dispenser parts cleaned?

A

daily - mouthpieces, protective guards, basins

quarterly - outlet screens and aerators

16
Q

Coliform

A

A microorganism, including bacteria such as E. coli, naturally found in soil, vegetation, and in the intestinal tract of mammals.

17
Q

Kinetic degradation fluxion (KDF)

A

Water filter that contains flakes or granules of a copper-and-zinc alloy.

18
Q

2,4-Dichlorophenoxyacetic acid (2,4-D)

A

Herbicide that is likely to run off into ground and surface water sources

19
Q

Part 3: Fluoride of Feature 34, Public Water Additives, requires that the amount of fluoride in a water supply be limited to less than ___ mg/L.

A

4.0

20
Q

Reverse-osmosis (RO) filtration system

A

Water filtration system that uses a semipermeable membrane to filter water

21
Q

Legionella

A

A bacterium that is found in freshwater and can cause a serious form of pneumonia called Legionnaires’ disease.

22
Q

Granular activated carbon (GAC) filtration system

A

Uses oxygen-treated carbon to chemically bond with the organic contaminants in water.

23
Q

Microbial cyst

A

A microorganism in its dormant state that is resistant to typical disinfection methods.

24
Q

Organic contaminant

A

A human-made compound or chemical containing carbon atoms that has leached into ground and surface water from industrial activities, such as the production of plastics.

25
Q

Ultraviolet germicidal irradiation (UVGI)

A

A sterilization method that uses UV light to break down microorganisms by destroying their DNA.

26
Q

Simazine

A

herbicide

27
Q

Glyphosate

A

herbicide

kidney and reproductive problems

drift, residues on food crops, and runoff into drinking water sources

28
Q

Water that is used for cooling towers, boilers, and industrial processes.

A

Process water

29
Q

A highly irritating, greenish-yellow gaseous halogen that can be introduced into a water supply as a gas, sodium hypochlorite solution, or calcium hypochlorite solid.

A

Chlorine

30
Q

An infectious biological agent such as a bacterium, virus, or fungus that is capable of causing disease in its host.

A

Pathogen

31
Q

Atrazine

A

pesticide

endocrine disruptor and cardiovascular

32
Q

Inorganic contaminant

A

An element or compound that may be found in a water supply, occurring from natural sources such as the geology of a location, resulting from human activities such as mining and industry, or leaching into a water supply through outdated or malfunctioning water supply infrastructure.

33
Q

List techniques used to maintain water quality (3)

A

carbon filters

sediment filters

UV sanitation

34
Q

The rate at which inorganic metals leach into drinking water is affected by: (3)

A

temperature

PH

weather

35
Q

37 - Drinking Water Promotion documentation (4)

A

PLOS

Performance test

LOA Architect

Operations Schedule

Spot Check