Streamkeepers Database | Module 3 Water Quality Index

Module 3 Water Quality Index

Stream Name: LAWSON CREEK | Survey Date: July 24th, 2013
Chemical Test	Result	Q-value	Weighting	Index Value
Temperature Change: Temperature		90.00	X 0.10 =	9
Oxygen Saturation:	120.00	86.00	x 0.17 =	14.62
pH (units):	7.20	90.00	x 0.11 =	9.9
Turbidity (cm):	50.00	60.00	x 0.08 =	4.8
Total = Water Quality Index (Compare this value to the Water Quality Chart below)				38.32

Water Quality Chart

Good

40-45

Acceptable

30-40

Marginal

20-30

Poor

< 20

Survey Results

Stream Name: LAWSON CREEK	Survey Date: July 24th, 2013
Organization Name: West Vancouver Streamkeepers Society	Project Name:
Data Entered by: Celia	Survey ID: 37

Step 1 Temperature

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

Site	Air Temp(0^o)	Water Temp(0^o)
Upstream:	18.00
Downstream:
Difference in water temperature:		0
Q Value:

Step 2 Dissolved Oxygen

Concentration (mg/l):	12.00
% Saturation:	120.00
Equipment (if not Hach):

Step 3 pH

pH Reading:	7.20
Equipment:	Hach
Nitrites:
Conductivity:
Other one:

Step 4 Turbidity

Tubdity (JTU):
Tubdity (NTU):
Tubdity (cm):	50.00
Tubdity (cm) greater than (>):
Background Tubdity:
Tubdity increase over background:
Equipment