Streamkeepers Database | Module 3 Water Quality Index

Module 3 Water Quality Index

Stream Name: BEAR CREEK | Survey Date: August 28th, 2001
Chemical Test	Result	Q-value	Weighting	Index Value
Temperature Change: Temperature	2	91.00	X 0.10 =	9.1
Oxygen Saturation:	32.00	36.00	x 0.17 =	6.12
pH (units):	7.40	90.00	x 0.11 =	9.9
Turbidity - JTU:	3.00	94.00	x 0.08 =	7.52
Total = Water Quality Index (Compare this value to the Water Quality Chart below)				32.64

Water Quality Chart

Good

40-45

Acceptable

30-40

Marginal

20-30

Poor

< 20

Survey Results

Stream Name: BEAR CREEK	Survey Date: August 28th, 2001
Organization Name: Katim	Project Name:
Data Entered by:	Survey ID: 3

Step 1 Temperature

Time of Day	Air Temp (0^o)	Water Temp (0^o)
09:00:00 am	21.00	15.00
11:10:00 pm	23.00	17.00
Difference in water temperature:		2
Q Value:		91.00

Site	Air Temp(0^o)	Water Temp(0^o)
Upstream:
Downstream:
Difference in water temperature:		2
Q Value:

Step 2 Dissolved Oxygen

Concentration (mg/l):	3.00
% Saturation:	32.00
Equipment (if not Hach):	hach

Step 3 pH

pH Reading:	7.40
Equipment:	hach
Nitrites:
Conductivity:
Other one:

Step 4 Turbidity

Tubdity (JTU):	3.00
Tubdity (NTU):
Tubdity (cm):
Tubdity (cm) greater than (>):
Background Tubdity:
Tubdity increase over background:
Equipment	0