xmlns:atom="http://www.w3.org/2005/Atom"

regulation 3(6)

SCHEDULE 6Criteria for Classification DS6

1.  Subject to paragraph 2, the criteria for the classification DS6 are that—

(a)the annual mean concentration of each substance listed in column (1) of Table 8 in samples taken from the sampling point for the waters in question in accordance with regulation 4 does not exceed the relevant concentration specified in column (2) of that Table; and

(b)the concentration of mevinphos in each sample so taken does not exceed 0.02 microgrammes per litre.

2.  Where samples are taken in accordance with regulation 4 from more than one sampling point in relation to the waters in question, the criterion in paragraph 1(a) shall be satisfied in relation to the samples from each sampling point.

TABLE 8

(1)(2)
SubstanceAnnual mean concentration in microgrammes per litre
4-Chloro-3-methyl-phenol40
2-Chlorophenol50
2,4-Dichlorophenol20
2,4-D (ester)1
(non-ester)40
1,1,1-Trichloroethane100
1,1,2-Trichloroethane400
Bentazone500
Benzene30
Biphenyl25
Chloronitrotoluenes10
Demeton0.5
Dimethoate1
Linuron2
Mecoprop20
Naphthalene10
Omethoate0.01
Toluene50
Triazaphos0.005
Xylene30