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Safe Drinking Water Foundation Test Results

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Cobourg Collegiate Institute

Cobourg, Ontario K9A 1M2

Submitted May 29, 2018

High School

Alkalinity Results

Alkalinity Sample #1
Urban Treated (Peterborough)

Result: 1.5 ml / 30 ppm

Alkalinity Sample #2
Cobourg Treated (CCI)

Result: 1.5 ml / 30 ppm

Alkalinity Sample #3
Rural Treated (Teacher's well water)

Result: 12.5 ml / 250 ppm

Alkalinity Sample #4
Raw Rural Untreated (Pond water)

Result: 12.5 ml / 250 ppm

Alkalinity Sample #5
Deionized Water received with kit

Result: 2.5 ml / 50 ppm

Ammonia Results

Ammonia Sample #1
Urban Treated (Peterborough)

Result: 0.2 mg/L/ppm

Ammonia Sample #2
Cobourg Treated (CCI)

Result: 0.0 mg/L/ppm

Ammonia Sample #3
Rural Treated (Teacher's well water)

Result: 1.0 mg/L/ppm

Ammonia Sample #4
Raw Rural Untreated (Pond water)

Result: 1.0 mg/L/ppm

Ammonia Sample #5
Deionized Water received with kit

Result: 0.0 mg/L/ppm

Arsenic Results

Arsenic Sample #1
Urban Treated (Peterborough)

Result: 0 ug/L

Arsenic Sample #2
Cobourg Treated (CCI)

Result: 0 ug/L

Arsenic Sample #3
Rural Treated (Teacher's well water)

Result: 0 ug/L

Arsenic Sample #4
Raw Rural Untreated (Pond water)

Result: 30 ug/L

Arsenic Sample #5
Deionized Water received with kit

Result: 5 ug/L

Colour Results

Colour Sample #1
Urban Treated (Peterborough)

Result: Lighter than the Canadian Guideline (PASS)
0 TCU

Colour Sample #2
Cobourg Treated (CCI)

Result: Lighter than the Canadian Guideline (PASS)
0 TCU

Colour Sample #3
Rural Treated (Teacher's well water)

Result: Lighter than the Canadian Guideline (PASS)
0 TCU

Colour Sample #4
Raw Rural Untreated (Pond water)

Result: Lighter than the Canadian Guideline (PASS)
0 TCU

Colour Sample #5
Deionized Water received with kit

Result: Lighter than the Canadian Guideline (PASS)
0 TCU

Copper Results

Copper Sample #1
Urban Treated (Peterborough)

Result: 0.0 mg/L/ppm

Copper Sample #2
Cobourg Treated (CCI)

Result: 0.0 mg/L/ppm

Copper Sample #3
Rural Treated (Teacher's well water)

Result: 0.0 mg/L/ppm

Copper Sample #4
Raw Rural Untreated (Pond water)

Result: 0.0 mg/L/ppm

Iron Results

Iron Sample #1
Urban Treated (Peterborough)

Result: Lighter than the Canadian Guideline (PASS)
0 mg/L/ppm

Iron Sample #2
Cobourg Treated (CCI)

Result: Lighter than the Canadian Guideline (PASS)
0 mg/L/ppm

Iron Sample #3
Rural Treated (Teacher's well water)

Result: Lighter than the Canadian Guideline (PASS)
0 mg/L/ppm

Iron Sample #4
Raw Rural Untreated (Pond water)

Result: Lighter than the Canadian Guideline (PASS)
0.7 mg/L/ppm

Iron Sample #5
Deionized Water received with kit

Result: Lighter than the Canadian Guideline (PASS)
0.2 mg/L/ppm

Manganese Results

Manganese Sample #1
Urban Treated (Peterborough)

Result: 2 mg/L/ppm

Manganese Sample #2
Cobourg Treated (CCI)

Result: 0.2 mg/L/ppm

Manganese Sample #3
Rural Treated (Teacher's well water)

Result: 0.1 mg/L/ppm

Manganese Sample #4
Raw Rural Untreated (Pond water)

Result: 0.1 mg/L/ppm

Nitrate Results

Nitrate Sample #1
Urban Treated (Peterborough)

Result: 0 mg/L/ppm

Nitrate Sample #2
Cobourg Treated (CCI)

Result: 0 mg/L/ppm

Nitrate Sample #3
Rural Treated (Teacher's well water)

Result: 0 mg/L/ppm

Nitrate Sample #4
Raw Rural Untreated (Pond water)

Result: 0 mg/L/ppm

pH Results

pH Sample #1
Urban Treated (Peterborough)

Result: 7.0 pH

pH Sample #2
Cobourg Treated (CCI)

Result: 7.0 pH

pH Sample #3
Rural Treated (Teacher's well water)

Result: 8.0 pH

pH Sample #4
Raw Rural Untreated (Pond water)

Result: 8.0 pH

Sulphate Results

Sulphate Sample #1
Urban Treated (Peterborough)

Result: Less cloudy than the CGLS cup (PASS)
0 mg/L

Sulphate Sample #2
Cobourg Treated (CCI)

Result: More cloudy than the CGLS cup (FAIL)
0 mg/L

Sulphate Sample #3
Rural Treated (Teacher's well water)

Result: Less cloudy than the CGLS cup (PASS)
0 mg/L

Sulphate Sample #4
Raw Rural Untreated (Pond water)

Result: Less cloudy than the CGLS cup (PASS)
0 mg/L

Sulphate Sample #5
Deionized Water received with kit

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

Total Chlorine Results

Chlorine Sample #1
Urban Treated (Peterborough)

Result: 0.5 mg/L/ppm

Chlorine Sample #2
Cobourg Treated (CCI)

Result: 0.5 mg/L/ppm

Chlorine Sample #3
Rural Treated (Teacher's well water)

Result: 0.2 mg/L/ppm

Chlorine Sample #4
Raw Rural Untreated (Pond water)

Result: 0.8 mg/L/ppm

Chlorine Sample #5
Deionized Water received with kit

Result: 0.2 mg/L/ppm

Total Hardness Results

Total Hardness Sample #1
Urban Treated (Peterborough)

Result: 120 mg/L/ppm

Total Hardness Sample #2
Cobourg Treated (CCI)

Result: 120 mg/L/ppm

Total Hardness Sample #3
Rural Treated (Teacher's well water)

Result: 250 mg/L/ppm

Total Hardness Sample #4
Raw Rural Untreated (Pond water)

Result: 250 mg/L/ppm

Total Hardness Sample #5
Deionized Water received with kit

Result: 0 mg/L/ppm

Submitted Jun 26, 2019

High School

Submitted Jun 20, 2022

High School