Module 3 Water Quality Index

Stream Name: MCDONALD CREEK-WestV | Survey Date: February 19th, 2024
Chemical Test Result Q-value Weighting Index Value
Temperature Change: Temperature Not enough data 92.00 X 0.10 = 9.2
Oxygen Saturation: 90.00 98.00 x 0.17 = 16.66
pH (units): 7.20 90.00 x 0.11 = 9.9
Turbidity (cm): 0.00 80.00 x 0.08 = 6.4
Total = Water Quality Index (Compare this value to the Water Quality Chart below)
42.16
Water Quality Chart
Good 40-45 Acceptable 30-40 Marginal 20-30 Poor < 20

Survey Results

Stream Name: MCDONALD CREEK-WestV Survey Date: February 19th, 2024
Organization Name: West Vancouver Streamkeepers Society Project Name: Winter water quality
Data Entered by: John Wilcockson Survey ID: 1027

Step 1 Temperature

Time of Day Air Temp (0o) Water Temp (0o)
10:16:00 am 9.80 6.00
Not recorded pm Not recorded Not recorded
Difference in water temperature: Not enough data
Q Value:92.00
Site Air Temp(0o) Water Temp(0o)
Upstream: Not recorded Not recorded
Downstream: Not recorded Not recorded
Difference in water temperature: Not enough data
Q Value:0.00
Step 2 Dissolved Oxygen
Concentration
(mg/l): 		11.10
% Saturation: 90.00
Equipment (if not Hach): Oxyguard Polari
Step 3 pH
pH Reading: 7.20
Equipment: Hannah pen
Nitrites: 0.00
Conductivity: 101.00
Other one: 0.00
Step 4 Turbidity
Tubdity (JTU): 0.00
Tubdity (NTU): 0.00
Tubdity (cm): 0.00
Tubdity (cm) greater than (>): 60.00
Background Tubdity: 0.00
Tubdity increase over background: 0.00
Equipment Turbidity Tube
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