Water Testing *For this Assignment you must have the water test kit (Basic price
ID: 297915 • Letter: W
Question
Water Testing *For this Assignment you must have the water test kit (Basic price $9.99) Begin with a brief introduction to the importance of water and the hydrologic cycle and tell why water testing is important. Before Testing -- Observe Water Characteristics: Color & Smell & Taste Test your home water supply by using the testing supplies in the kit. Test Water with the reagents provided in the kit and Record Results in a Table -In your conclusion report on the testing results and then compare your water quality to that of bottled water. Check out NRDC (http://www.nrdc.org/water/drinking/bw/bwinx.asp): Bottle Water Report to see results from a four-year study of the bottle water industry, including bacterial and chemical contamination problems. Tell us if you drink tap water or bottled water and then research the internet to see which is recommended as the best source of drinking water and why. Also review the video at 20/20 (https://www.youtube.com/watch?v=9e5CaIkrqWU) and report on there testing results. How do their test compare to your research?
Explanation / Answer
After Oxygen, water is second most important consumed item in human life. We need water not only for drinking, but bathing, washing, gardening and for crops. We need clean and healthy water for drinking purposes. So now days bottled mineral water available in the market considered to be more safer than tap water. But study indicates the tap water is also as safe as bottled water.
The Water is a nature’s gift comes as rain from the clouds. Clouds are formed evaporation of sea water. The rain water infiltrates into the soil and forms ground water. Remaining water flows in streams and rivers collected in lakes and in Oceans. Groundwater and water in dams or lakes are important sources to supply water for our consumption.
But before consuming water we should test the water to know that it is a safe water to drink. Water kits are used to test the water available in wells, taps and lakes. Water should be tested for colour, smell, hardness, pH, chemicals, bacterial contamination etc. There are prescribed norms on water quality for drinking purpose. So we should test it and confirm that water we are consuming is safe and without any contaminants. Test results from water kits serve the purpose to know that water is good for health and drinkable.
WATER KIT TEST RESULTS
PARAMETERS
LIMITS(WHO)
BOTTLE 1
TAP WATER
BOTTLE 2
TEMPERATURE
30°C
31
29
30
ODOUR
ODERLESS
-do-
-do-
-do-
PH
6.5 – 8.5
6.4
6.6
6.5
HARDNESS
500 mg/l
499
501
500
TDS
1500 mg/l
1498
1501
1498
TURBIDITY
5 NUT
5
5.2
4.9
CONDUCTIVITY
120 YS/cm³
119
121
118
CHLORIDE ION
25O mg/l
250
252
149
ALKALINITY
100 mg/l
101
102
99
COLOUR
15 TCU
15
15.2
14.9
APPEARANCE
CLEAR
Clear
Clear
clear
BACTERIOLOGICAL
COLIFORM
NIL/100 ml
nil
nil
nil
E. COIL
NIL/100 ml
nil
nil
nil
The test results of bottle water and tap water shows they have same quality. Rather tap water has more minerals than bottled water. So we should avoid using bottled water as they are expensive. Tap water drinking which is equally safe save lot of money. So encourage people to use tap water by showing the test results.
PARAMETERS
LIMITS(WHO)
BOTTLE 1
TAP WATER
BOTTLE 2
TEMPERATURE
30°C
31
29
30
ODOUR
ODERLESS
-do-
-do-
-do-
PH
6.5 – 8.5
6.4
6.6
6.5
HARDNESS
500 mg/l
499
501
500
TDS
1500 mg/l
1498
1501
1498
TURBIDITY
5 NUT
5
5.2
4.9
CONDUCTIVITY
120 YS/cm³
119
121
118
CHLORIDE ION
25O mg/l
250
252
149
ALKALINITY
100 mg/l
101
102
99
COLOUR
15 TCU
15
15.2
14.9
APPEARANCE
CLEAR
Clear
Clear
clear
BACTERIOLOGICAL
COLIFORM
NIL/100 ml
nil
nil
nil
E. COIL
NIL/100 ml
nil
nil
nil
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