Fairview Creek at its Headwaters, 2002-03

Quality Control Data 2002-03

The following data represent a comparison of student data versus lab data determined at a quality control lab. The comparison of student to quality control data allows the student to assess the relative accuracy of the tests shown below. The data from 10/23/01 and 4/15/02 compare the student data collected in the field to QC data from the field. The comparison of data on 4/10/02 represents student data determined after school on that date compared to a known standard.

To learn how to calculate student data accuracy, click here!
Fairview Creek (Site FRV007 - Headwaters Site)

Test

10/23/01

(QC mean)

10/23/01

(student mean)

4/10/02

(QC mean)

4/10/02

(student mean)

4/15/02

(QC mean)

4/15/02

(student mean)

10//02

(QC mean)

10/ /02

(student mean)

4/23/03

(QC mean)

4/23/03

(student mean)

 

QCL Nitrate

(mg/L N)
-

-

0.171

0.07
-

-
1.45
0.16
< 0.1
0.03
  

QCH

Nitrate

(mg/L N)

1.05

0.4

0.853

0.47

1.60

3.68
-
-
-
-
  

QCL

Ammonia

0.19

0.18

0.197

0.07

0.08

0.072
0.02
0.03
0.045
0.02
  

QCH Ammonia
-
-

0.39

0.60

-
-
-
-
-
  

Turbidity

1.48

1.72

-
-

1.67

1.61
84.65
4.89
2.74
19.1
  

Alkalinity (mg/L CaCO3)

60

63

-
-

50

63.25
50
71
-
-
  

pH
-
-

-
-

7.4

7.17
-
6.90
6.78
6.87
  
Dissolved Oxygen (mg/L)
            
-
5.5
3.58
5.5
  

Dissolved Oxygen (mg/L)

            
-
52
33.6
52
  

Phosphorus

mg/L P)

            
0.08
0.10
0.03
0.07
  
E. coli Bacteria (CFU/100 mL)
            
15
-
10
-
  

 

Slichter