North Fork Watershed Association
Friday, September 22, 2017

NF 18

 
 North Fork Below Richardsville Bridge
 
 

DATE

Field pH

Lab pH

ANC

Conductivity
(µmhos/cm)
 
Aluminum
(mg/L)
Temp
°C

6-26-04

7.3

6.75

 

56.6

.106

18

7/31/04

7.0

5.94

197

55.4

.034

17

9/11/04

6.6

6.43

72.7

42.9

.09

14

10/16/04

7.1

6.15

349

65.3

.005

---

11/20/04

7.5

----

254

----

----

10

1/15/05

6.3

5.86

17

40.5

.185

2

2/18/05

7.0

6.28

45

50

.075

1

4/8/05

6.8

7.08

59.4

46

.07

10

5/20/05

7.3

6.41

254

62.3

.02

12

7/8/05

7.5

6.25

 

80.5

.04

20

8/20/05

7.2

6.8

802

104.8

.020

21

4/21/06

Acidity

6.11

 

 

.115

12

8/04/06

3

6.4

 

60.8

.04

22

11/10/06

4

5.81

 

 

.0446

8

3/30/07

6

6.41

 

44.9

.154

6

6/16/07

4

6.9

 

61.2

.0503

19

8-31-07 

6.99 

 

106.6 

 .0453

 24

 
 North Fork Below Richardsville Bridge
 
 
DATE pH ANC
Alkalinity
(mg/L)
Acidity
Aluminum
(mg/L)
Conductivity
(µmhos/cm)
Temp
°C
 3-30-08  5.98     2  .190    5.5 
9-23-08 7.3    44  < .01  130  13 
9-11-09  7.38    26  .0899  84.4  13.5 
3-27-10  6.45    13  < 1  .125   
9-20-10   7.24    41  < 1  .0756 110.7  12.5
4-2-11  6.42    13  .0810  57 
9-10-11 6.75    31  < 1  .0417  108  17.5 
3-28-12 6.75    14  .0646  52.5  5.5 
 9-15-12  7.31     42  < 1   .0128  118.7  14 
3-27-13 6.64   15 < 1 .0785 86.9  2.5
9-10-13 6.75    25 < 1  .0484  61.1 14
3-29-14 6.18    10   2 .0404  50.5     3 
9-13-14 6.86    31  < 1 .0284  69.6   13
4-1-15  6.53   < 1   0.101 53.5  2.5
9-17-15   7.04   31 < 1  0.0317  102  14
DATE pH  ANC
Alkalinity
(mg/L)
Acidity
Aluminum
(mg/L)
Conductivity
(µmhos/cm)
Temp
°C
3-22-16  6.71   8   < 1   0.0296 53.5   2
9-20-16 7.3   37  16   0.0311 110.1 15
3-28-17  6.42    15  1.5  0.0772   49.9  7