Water Concept

Question 1

How much water should women and men drink?

Answer 1

W - 2.7 L

Men - 3.7 L

Question 2

How many deaths annually attributed to unsafe water?

Answer 2

2 million

Question 3

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

Answer 3

Turbidity (<1.0 NTU)

Total Coliforms (0)

Question 4

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

Answer 4

CLAMAN: Copper Lead Arsenic Mercury Antimony Nickel

Reverse Osmosis or KDF

Question 5

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

Answer 5

SBEV TXT PCB

Styrene Benzene Ethylbenzene Vinyl

Toluene Xylenes TCE

PCBs

Activated carbon filter

cancer immune deficiencies nervous system damage

Question 6

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

Answer 6

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

Question 7

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

Answer 7

Atrazine

Simazine

Glyphosate

2,4-D

Nitrates less than 10 mg/L

Question 8

34 - Public Water Additives: Two disinfectants?

Answer 8

chlorine

chloramine

Question 9

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

Answer 9

trihalomethanes (THM)

halocetic acids (HAAs)

Question 10

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

Answer 10

less than 4.0 mg/L

Question 11

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

Answer 11

tested quarterly reports submitted annually, kept for 3 years

CLAM: Copper, Lead, Arsenic, Mercury

Question 12

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

Answer 12

organic compounds / activated carbon

sediments / filter suspended solids

microbial / UVGI or NSF filter

Legionella / hazard analysis

Question 13

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

Answer 13

SMAZICS -TDS

Sodium Manganese Aluminum Zinc Iron Chloride Sulfate

Total Dissolved Solids

Question 14

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

Answer 14

100 ft of all parts of regularly occupied space

Question 15

How often are water dispenser parts cleaned?

Answer 15

daily - mouthpieces, protective guards, basins

quarterly - outlet screens and aerators

Question 16

Coliform

Answer 16

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

Question 17

Kinetic degradation fluxion (KDF)

Answer 17

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

Question 18

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

Answer 18

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

Question 19

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.

Answer 19

4.0

Question 20

Reverse-osmosis (RO) filtration system

Answer 20

Water filtration system that uses a semipermeable membrane to filter water

Question 21

Legionella

Answer 21

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

Question 22

Granular activated carbon (GAC) filtration system

Answer 22

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

Question 23

Microbial cyst

Answer 23

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

Question 24

Organic contaminant

Answer 24

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.

Question 25

Ultraviolet germicidal irradiation (UVGI)

Answer 25

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

Question 26

Simazine

Answer 26

herbicide

Question 27

Glyphosate

Answer 27

herbicide kidney and reproductive problems drift, residues on food crops, and runoff into drinking water sources

Question 28

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

Answer 28

Process water

Question 29

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.

Answer 29

Chlorine

Question 30

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

Answer 30

Pathogen

Question 31

Atrazine

Answer 31

pesticide endocrine disruptor and cardiovascular

Question 32

Inorganic contaminant

Answer 32

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.

Question 33

List techniques used to maintain water quality (3)

Answer 33

carbon filters sediment filters UV sanitation

Question 34

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

Answer 34

temperature PH weather

Question 35

37 - Drinking Water Promotion documentation (4)

Answer 35

PLOS Performance test LOA Architect Operations Schedule Spot Check