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Safe Drinking Water Foundation Test Results

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Watson Lake Secondary School

Watson Lake, Yukon Y0A 1C0

Submitted Apr 5, 2018

High School

Alkalinity Results

Alkalinity Sample #1
Untreated water well #1

Result: 9.0 ml / 180 ppm


Alkalinity Sample #2
Untreated water well #2

Result: 10.5 ml / 210 ppm


Alkalinity Sample #3
Untreated water well #3

Result: 6.0 ml / 120 ppm


Alkalinity Sample #4
Watson Lake Tap water

Result: 8.5 ml / 170 ppm


Alkalinity Sample #5
Alkalinity Low Limit Sample= 50 mg/L

Result: 2.5 ml / 50 ppm

Ammonia Results

Ammonia Sample #1
Untreated water well #1

Result: 0.2 mg/L/ppm


Ammonia Sample #2
Untreated water well #2

Result: 0.3 mg/L/ppm


Ammonia Sample #3
Untreated water well #3

Result: 0.3 mg/L/ppm


Ammonia Sample #4
Watson Lake Tap water

Result: 0.3 mg/L/ppm


Ammonia Sample #5
Ammonia European Union Limit Sample= 0.5 mg / L

Result: 0.5 mg/L/ppm


Arsenic Results

Arsenic Sample #1
Untreated water well #1

Result: 5 ug/L


Arsenic Sample #2
Untreated water well #2

Result: 5 ug/L


Arsenic Sample #3
Untreated water well #3

Result: 5 ug/L


Arsenic Sample #4
Watson Lake Tap water

Result: 5 ug/L


Arsenic Sample #5
Arsenic Proposed Canadian Guideline Limit Sample= 10 ug/L

Result: 10 ug/L

Colour Results

Colour Sample #1
Untreated water well #1

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


Colour Sample #2
Untreated water well #2

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


Colour Sample #3
Untreated water well #3

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


Colour Sample #4
Watson Lake Tap water

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


Colour Sample #5
Colour Canadian Guideline Limit Sample= normal

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


Copper Results

Copper Sample #1
Untreated water well #1

Result: 0.1 mg/L/ppm


Copper Sample #2
Untreated water well #2

Result: 0.05 mg/L/ppm


Copper Sample #3
Untreated water well #3

Result: 0.1 mg/L/ppm


Copper Sample #4
Watson Lake Tap water

Result: 0.1 mg/L/ppm


Copper Sample #5
Copper Canadian Guideline Limit Sample= 1 mg/L

Result: 1.0 mg/L/ppm

Iron Results

Iron Sample #1
Untreated water well #1

Result: Darker than the Canadian Guideline (FAIL)
0.6 mg/L/ppm


Iron Sample #2
Untreated water well #2

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


Iron Sample #3
Untreated water well #3

Result: Darker than the Canadian Guideline (FAIL)
0.6 mg/L/ppm


Iron Sample #4
Watson Lake Tap water

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


Iron Sample #5
Iron Canadian Guideline Limit Sample= 0.3 mg/ L

Result: The same as the Canadian Guideline (PASS)
0.3 mg/L/ppm


Manganese Results

Manganese Sample #1
Untreated water well #1

Result: 0.4 mg/L/ppm


Manganese Sample #2
Untreated water well #2

Result: 1 mg/L/ppm


Manganese Sample #3
Untreated water well #3

Result: 0.4 mg/L/ppm


Manganese Sample #4
Watson Lake Tap water

Result: 1 mg/L/ppm


Manganese Sample #5
Manganese Canadian Guideline Limit Sample= 0.4 mg/L

Result: 0.4 mg/L/ppm

Nitrate Results

Nitrate Sample #1
Untreated water well #1

Result: 20 mg/L/ppm


Nitrate Sample #2
Untreated water well #2

Result: 20 mg/L/ppm


Nitrate Sample #3
Untreated water well #3

Result: 30 mg/L/ppm


Nitrate Sample #4
Watson Lake Tap water

Result: 40 mg/L/ppm


Nitrate Sample #5
Nitrate Canadian Guideline Limit Sample= 45 mg/ L

Result: 40 mg/L/ppm


pH Results

pH Sample #1
Untreated water well #1

Result: 8.0 pH


pH Sample #2
Untreated water well #2

Result: 8.0 pH


pH Sample #3
Untreated water well #3

Result: 8.0 pH


pH Sample #4
Watson Lake Tap water

Result: 7.5 pH


pH Sample #5
pH Buffer 7

Result: 7.0 pH

Sulphate Results

Sulphate Sample #1
Untreated water well #1

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


Sulphate Sample #2
Untreated water well #2

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


Sulphate Sample #3
Untreated water well #3

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


Sulphate Sample #4
Watson Lake Tap water

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


Sulphate Sample #5
Sulphate Canadian Guideline Limit Sample= 500 mg/L

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


Total Chlorine Results

Chlorine Sample #1
Watson Lake Tap water

Result: 0.8 mg/L/ppm


Chlorine Sample #2
Total Chlorine MRDLG= 4 mg/L

Result: 4.0 mg/L/ppm

Total Hardness Results

Total Hardness Sample #1
Untreated water well #1

Result: 425 mg/L/ppm


Total Hardness Sample #2
Untreated water well #2

Result: 350 mg/L/ppm


Total Hardness Sample #3
Untreated water well #3

Result: 180 mg/L/ppm


Total Hardness Sample #4
Alkalinity Low Limit Sample= 50 mg/L

Result: 120 mg/L/ppm


Total Hardness Sample #5
Total Hardness Saskatchewan Guideline Limit Sample= 4 mg/L

Result: 120 mg/L/ppm

Submitted Dec 13, 2018

High School