Fairview Creek at the Salish Ponds, 2001-02

Dissolved Oxygen

The 2 tables below show raw data for dissolved oxygen using 2 different collection methods. The first, the YSI meter should if calibrated properly, be more accurate than the second method, which uses the Hach Chemical Dissolved Oxygen kit.

Raw Data: Dissoloved Oxygen (Using the Digital YSI Meter)

Date (mo/day/yr)

9/24/2001

10/23/2001

11/27/2001

12/17/2001

1/24/2002

2/26/2002

3/18/2001

4/15/2002

5/23/2002

Dissolved Oxygen (mg/L) (YSI Meter)

Sample 1

4.67

5.03

7.16

12.05

10.6

14

Used Hach Kit

10.45

9.05

  

Dissolved Oxygen (mg/L) (YSI Meter)

Sample 2

5.04

4.93

7.11

11.96

10.41

13.5

Used Hach Kit

10.87

8.85

  

Dissolved Oxygen (mg/L) (YSI Meter)

Sample 3

5.53

4.56

7.10

11.89

10.41

14

Used Hach Kit

10.87

8.96

  

Dissolved Oxygen (mg/L) (YSI Meter)

Sample 4

4.76

5.4

7.13

11.86

10.36

-

10.76

9.0

  

Dissolved Oxygen (mg/L) (YSI Meter)

Sample 5

4.56

5.34

7.11

11.80

10.27

-

-

9.06

  

Average Dissolved Oxygen (mg/L)

(YSI Meter)

4.91

5.052

4.12

11.912

10.41

13.8

Used Hach Kit

10.74

8.98

  

Average Dissolved Oxygen (% Saturation)

(YSI Meter)

54.7

48.3

61.1

101.06

83.4

112.9

Used Hach Kit

90.40

84.88

  

Raw Data: Dissolved Oxygen (Using the Hach Kit)

Date (mo/day/yr)

9/24/2001

10/23/2001

11/27/2001

12/17/2001

1/24/2002

2/26/2002

3/18/2001

4/15/2002

5/23/2002

Dissolved Oxygen (mg/L) (Hach)

Sample 1

8

10

8

9.5
-

14

11

10

  

Dissolved Oxygen (mg/L) (Hach)

Sample 2

12

9

7

9.0
-

13.5

11

9.5

  

Dissolved Oxygen (mg/L) (Hach)

Sample 3

5

9

8

9.5
-

14

11

9

  

Dissolved Oxygen (mg/L) (Hach)

Sample 4

5

8

8

9.5
-

-

11

10.5

  

Dissolved Oxygen (mg/L) (Hach)

Sample 5

-

-

7

9.5
-

-

-

9.5

  

Average Dissolved Oxygen (mg/L)

(Hach Kit)

7.5

9

7.6

9.4
-

13.8

11

9.9

  

Average % Saturation of Dissolved Oxygen (%)

(Hach Kit)

      
-

112.9

92

 

  

 

Date (mo/day/yr)

9/24/2001

10/23/2001

11/27/2001

12/17/2001

1/24/2002

2/26/2002

3/18/2001

4/15/2001

5/23/2002

Avg. Dissolved Oxygen (mg/L) (Hach Kit)

% Saturation (%) (Hach Kit)

 

Slichter