Streamkeepers Database | Module 3 Water Quality Index

Module 3 Water Quality Index

Stream Name: LAWSON CREEK | Survey Date: April 11th, 2017
Chemical Test	Result	Q-value	Weighting	Index Value
Temperature Change: Temperature	0	90.00	X 0.10 =	9
Oxygen Saturation:	105.00	98.00	x 0.17 =	16.66
pH (units):	6.50	75.00	x 0.11 =	8.25
Turbidity (cm):	39.00	72.00	x 0.08 =	5.76
Total = Water Quality Index (Compare this value to the Water Quality Chart below)				39.67

Water Quality Chart

Good

40-45

Acceptable

30-40

Marginal

20-30

Poor

< 20

Survey Results

Stream Name: LAWSON CREEK	Survey Date: April 11th, 2017
Organization Name: West Vancouver Streamkeepers Society	Project Name: H2O study
Data Entered by: Leslie	Survey ID: 250

Step 1 Temperature

Time of Day	Air Temp (0^o)	Water Temp (0^o)
am	11.60	5.60
pm
Difference in water temperature:		0
Q Value:		90.00

Site	Air Temp(0^o)	Water Temp(0^o)
Upstream:
Downstream:
Difference in water temperature:		-5.6
Q Value:

Step 2 Dissolved Oxygen

Concentration (mg/l):	13.00
% Saturation:	105.00
Equipment (if not Hach):

Step 3 pH

pH Reading:	6.50
Equipment:	hach
Nitrites:
Conductivity:
Other one:

Step 4 Turbidity

Tubdity (JTU):
Tubdity (NTU):
Tubdity (cm):	39.00
Tubdity (cm) greater than (>):
Background Tubdity:
Tubdity increase over background:
Equipment