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Safe Drinking Water Foundation Test Results

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Sir William Osler Elementary School

Vancouver, British Columbia V6M 2Y8

Submitted Jun 26, 2023

Elementary School

Alkalinity Results

Alkalinity Sample #1
water from the filtered drinking fountain by the library

Result: 7.0 ml / 140 ppm

Alkalinity Sample #2
Deionized water

Result: 5.8 ml / 116 ppm

Ammonia Results

Ammonia Sample #1
water from the filtered drinking fountain by the library

Result: 0.5 mg/L/ppm

Ammonia Sample #2
Deionized water

Result: 1.0 mg/L/ppm

Colour Results

Colour Sample #1
water from the filtered drinking fountain by the library

Result: The same as the Canadian Guideline (PASS)
0 TCU

Colour Sample #2
Deionized water

Result: The same as the Canadian Guideline (PASS)
0 TCU

Copper Results

Copper Sample #1
water from the filtered drinking fountain by the library

Result: 0.1 mg/L/ppm

Copper Sample #2
Deionized water

Result: 0.2 mg/L/ppm

pH Results

pH Sample #1
water from the filtered drinking fountain by the library

Result: 7.0 pH

pH Sample #2
Deionized water

Result: 7.0 pH

Sulphate Results

Sulphate Sample #1
water from the filtered drinking fountain by the library

Result: Equal in cloudiness to the CGLS cup (PASS)
500 mg/L

Sulphate Sample #2
Deionized water

Result: Equal in cloudiness to the CGLS cup (PASS)
500 mg/L

Total Chlorine Results

Chlorine Sample #1
water from the filtered drinking fountain by the library

Result: 0.1 mg/L/ppm

Chlorine Sample #2
water from the sink in the classroom

Result: 0.1 mg/L/ppm

Total Hardness Results

Total Hardness Sample #1
water from the filtered drinking fountain by the library

Result: 50 mg/L/ppm

Total Hardness Sample #2
Deionized water

Result: 450 mg/L/ppm

Submitted Jan 9, 2024

Elementary School