Fraction

DOC (%)

Cefni

Conwy

Oct 2010†

Oct 2011‡

Oct 2010†

Oct 2011‡

Hydrophobic Acid

39.7

38.6

38.5

41.5

Hydrophobic Base

1.5

0.3

0.4

0.1

Hydrophilic Acid

22.2

25.5

27.1

23.7

Hydrophilic Base

1.1

0.2

0.4

0.1

Non- retained Neutrals

28.6

29.6

28.4

30.0

% Recovery

93.1

94.2

94.9

95.1