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ENVIRONMENTAL QUALITY STANDARDS FOR PRIORITY SUBSTANCES AND CERTAIN OTHER POLLUTANTS PART A: ENVIRONMENTAL QUALITY STANDARDS (EQS) AA : annual average. MAC : maximum allowable concentration. Unit : [μg/l] for columns (4) to (7) [μg/kg wet weight] for column (8) (1) (2) (3) (4) (5) (6) (7) (8) No Name of substance CAS number AA-EQS Inland surface waters AA-EQS Other surface waters MAC-EQS Inland surface waters MAC-EQS Other surface waters EQS Biota (1) Alachlor 15972-60-8 0,3 0,3 0,7 0,7 (2) Anthracene 120-12-7 0,1 0,1 0,1 0,1 (3) Atrazine 1912-24-9 0,6 0,6 2,0 2,0 (4) Benzene 71-43-2 10 8 50 50 (5) Brominated diphenylethers 32534-81-9 0,14 0,014 0,0085 (6) Cadmium and its compounds (depending on water hardness classes) 7440-43-9 ≤ 0,08 (Class 1) 0,08 (Class 2) 0,09 (Class 3) 0,15 (Class 4) 0,25 (Class 5) 0,2 ≤ 0,45 (Class 1) 0,45 (Class 2) 0,6 (Class 3) 0,9 (Class 4) 1,5 (Class 5) ≤ 0,45 (Class 1) 0,45 (Class 2) 0,6 (Class 3) 0,9 (Class 4) 1,5 (Class 5) (6a) Carbon-tetrachloride 56-23-5 12 12 not applicable not applicable (7) C10-13 Chloroalkanes 85535-84-8 0,4 0,4 1,4 1,4 (8) Chlorfenvinphos 470-90-6 0,1 0,1 0,3 0,3 (9)

Chlorpyrifos (Chlorpyrifos-ethyl) 2921-88-2 0,03 0,03 0,1 0,1 (9a) Cyclodiene pesticides: Aldrin Dieldrin Endrin Isodrin 309-00-2 60-57-1 72-20-8 465-73-6 Σ = 0,01 Σ = 0,005 not applicable not applicable (9b) DDT total , not applicable 0,025 0,025 not applicable not applicable para-para-DDT 50-29-3 0,01 0,01 not applicable not applicable (10) 1,2-Dichloroethane 107-06-2 10 10 not applicable not applicable (11) Dichloromethane 75-09-2 20 20 not applicable not applicable (12) Di(2-ethylhexyl)-phthalate (DEHP) 117-81-7 1,3 1,3 not applicable not applicable (13) Diuron 330-54-1 0,2 0,2 1,8 1,8 (14) Endosulfan 115-29-7 0,005 0,0005 0,01 0,004 (15) Fluoranthene 206-44-0 0,0063 0,0063 0,12 0,12 30 (16) Hexachloro-benzene 118-74-1 0,05 0,05 10 (17) Hexachloro-butadiene 87-68-3 0,6 0,6 55 (18) Hexachloro-cyclohexane 608-73-1 0,02 0,002 0,04 0,02 (19) Isoproturon 34123-59-6 0,3 0,3 1,0 1,0 (20) Lead and its compounds 7439-92-1 1,2 1,3 14 14 (21) Mercury and its compounds 7439-97-6 0,07 0,07 20 (22) Naphthalene 91-20-3 2 2 130 130 (23) Nickel and its compounds 7440-02-0 4 8,6 34 34 (24) Nonylphenols (4-Nonylphenol) 84852-15-3 0,3 0,3 2,0 2,0 (25) Octylphenols

((4-(1,1′,3,3′-tetramethylbutyl)-phenol)) 140-66-9 0,1 0,01 not applicable not applicable (26) Pentachloro-benzene 608-93-5 0,007 0,0007 not applicable not applicable (27) Pentachloro-phenol 87-86-5 0,4 0,4 1 1 (28) Polyaromatic hydrocarbons (PAH) not applicable not applicable not applicable not applicable not applicable Benzo(a)pyrene 50-32-8 1,7 × 10–4 1,7 × 10–4 0,27 0,027 5 Benzo(b)fluor-anthene 205-99-2 see footnote 11 see footnote 11 0,017 0,017 see footnote 11 Benzo(k)fluor-anthene 207-08-9 see footnote 11 see footnote 11 0,017 0,017 see footnote 11 Benzo(g,h,i)-perylene 191-24-2 see footnote 11 see footnote 11 8,2 × 10–3 8,2 × 10–4 see footnote 11 Indeno(1,2,3-cd)-pyrene 193-39-5 see footnote 11 see footnote 11 not applicable not applicable see footnote 11 (29) Simazine 122-34-9 1 1 4 4 (29a) Tetrachloro-ethylene 127-18-4 10 10 not applicable not applicable (29b) Trichloro-ethylene 79-01-6 10 10 not applicable not applicable (30) Tributyltin compounds (Tributyltin-cation) 36643-28-4 0,0002 0,0002 0,0015 0,0015 (31) Trichloro-benzenes 12002-48-1 0,4 0,4 not applicable not applicable (32) Trichloro-methane 67-66-3 2,5

2,5 not applicable not applicable (33) Trifluralin 1582-09-8 0,03 0,03 not applicable not applicable (34) Dicofol 115-32-2 1,3 × 10–3 3,2 × 10–5 not applicable not applicable 33 (35) Perfluorooctane sulfonic acid and its derivatives (PFOS) 1763-23-1 6,5 × 10–4 1,3 × 10–4 36 7,2 9,1 (36) Quinoxyfen 124495-18-7 0,15 0,015 2,7 0,54 (37) Dioxins and dioxin-like compounds See footnote 10 in Annex X to Directive 2000/60/EC not applicable not applicable Sum of PCDD+PCDF+PCB-DL 0,0065 μg.kg–1 TEQ (38) Aclonifen 74070-46-5 0,12 0,012 0,12 0,012 (39) Bifenox 42576-02-3 0,012 0,0012 0,04 0,004 (40) Cybutryne 28159-98-0 0,0025 0,0025 0,016 0,016 (41) Cypermethrin 52315-07-8 8 × 10–5 8 × 10–6 6 × 10–4 6 × 10–5 (42) Dichlorvos 62-73-7 6 × 10–4 6 × 10–5 7 × 10–4 7 × 10–5 (43) Hexabromocyclododecane (HBCDD) See footnote 12 in Annex X to Directive 2000/60/EC 0,0016 0,0008 0,5 0,05 167 (44) Heptachlor and heptachlor epoxide 76-44-8/1024-57-3 2 × 10–7 1 × 10–8 3 × 10–4 3 × 10–5 6,7 × 10–3 (45) Terbutryn 886-50-0 0,065 0,0065 0,34 0,034 CAS: Chemical Abstracts Service.

This parameter is the EQS expressed as an annual average value (AA-EQS). Unless otherwise specified, it applies to the total concentration of all isomers. Inland surface waters encompass rivers and lakes and related artificial or heavily modified water bodies. This parameter is the EQS expressed as a maximum allowable concentration (MAC-EQS). Where the MAC-EQS are marked as ‘not applicable’, the AA-EQS values are considered protective against short-term pollution peaks in continuous discharges since they are significantly lower than the values derived on the basis of acute toxicity. For the group of priority substances covered by brominated diphenylethers (No 5), the EQS refers to the sum of the concentrations of congener numbers 28, 47, 99, 100, 153 and 154. For Cadmium and its compounds (No 6) the EQS values vary depending on the hardness of the water as specified in five class categories (Class 1: < 40 mg CaCO3/l, Class 2: 40 to < 50 mg CaCO3/l, Class 3: 50 to < 100 mg CaCO3/l, Class 4: 100 to < 200 mg CaCO3/l and Class 5: ≥ 200 mg CaCO3/l).

This substance is not a priority substance but one of the other pollutants for which the EQS are identical to those laid down in the legislation that applied prior to 13 January 2009. No indicative parameter is provided for this group of substances. The indicative parameter(s) must be defined through the analytical method. DDT total comprises the sum of the isomers 1,1,1-trichloro-2,2 bis (p-chlorophenyl) ethane (CAS number 50-29-3; EU number 200-024-3); 1,1,1-trichloro-2 (o-chlorophenyl)-2-(p-chlorophenyl) ethane (CAS number 789-02-6; EU Number 212-332-5); 1,1-dichloro-2,2 bis (p-chlorophenyl) ethylene (CAS number 72-55-9; EU Number 200-784-6); and 1,1-dichloro-2,2 bis (p-chlorophenyl) ethane (CAS number 72-54-8; EU Number 200-783-0). There is insufficient information available to set a MAC-EQS for these substances.

For the group of priority substances of polyaromatic hydrocarbons (PAH) (No 28), the biota EQS and corresponding AA-EQS in water refer to the concentration of benzo(a)pyrene, on the toxicity of which they are based. Benzo(a)pyrene can be considered as a marker for the other PAHs, hence only benzo(a)pyrene needs to be monitored for comparison with the biota EQS or the corresponding AA-EQS in water. Unless otherwise indicated, the biota EQS relate to fish. An alternative biota taxon, or another matrix, may be monitored instead, as long as the EQS applied provides an equivalent level of protection. For substances numbered 15 (Fluoranthene) and 28 (PAHs), the biota EQS refers to crustaceans and molluscs. For the purpose of assessing chemical status, monitoring of Fluoranthene and PAHs in fish is not appropriate. For substance number 37 (Dioxins and dioxin-like compounds), the biota EQS relates to fish, crustaceans and molluscs, in line with section 5.3 of the Annex to Commission Regulation (EU) No 1259/2011 of 2 December 2011 amending Regulation (EC) No 1881/2006 as regards maximum levels for dioxins, dioxin-like PCBs and non-dioxin-like PCBs in foodstuffs (OJ L 320, 3.12.2011, p. 18).

These EQS refer to bioavailable concentrations of the substances. PCDD: polychlorinated dibenzo-p-dioxins; PCDF: polychlorinated dibenzofurans; PCB-DL: dioxin-like polychlorinated biphenyls; TEQ: toxic equivalents according to the World Health Organisation 2005 Toxic Equivalence Factors. PART B: APPLICATION OF THE EQS SET OUT IN PART A 1. Columns 4 and 5 of the table: For any given surface water body, applying the AA-EQS means that, for each representative monitoring point within the water body, the arithmetic mean of the concentrations measured at different times during the year does not exceed the standard. The calculation of the arithmetic mean, the analytical method used and, where there is no appropriate analytical method meeting the minimum performance criteria, the method of applying an EQS must be in accordance with implementing acts adopting technical specifications for chemical monitoring and quality of analytical results, in accordance with Directive 2000/60/EC. 2.

Columns 6 and 7 of the table: for any given surface water body, applying the MAC-EQS means that the measured concentration at any representative monitoring point within the water body does not exceed the standard. However, in accordance with Section 1.3.4 of Annex V to Directive 2000/60/EC, Member States may introduce statistical methods, such as a percentile calculation, to ensure an acceptable level of confidence and precision for determining compliance with the MAC-EQS. Where Member States do so, such statistical methods shall comply with detailed rules laid down in accordance with the examination procedure referred to in Article 9(2) of this Directive.

3. The water EQS laid down in this Annex are expressed as total concentrations in the whole water sample. By way of derogation from the first subparagraph, in the case of cadmium, lead, mercury and nickel (hereinafter ‘metals’), the water EQS refer to the dissolved concentration, i.e. the dissolved phase of a water sample obtained by filtration through a 0,45 μm filter or any equivalent pre-treatment, or, where specifically indicated, to the bioavailable concentration.

Member States may, when assessing the monitoring results against the relevant EQS, take into account:

(a) natural background concentrations for metals and their compounds where such concentrations prevent compliance with the relevant EQS;

(b) hardness, pH, dissolved organic carbon or other water quality parameters that affect the bioavailability of metals, the bioavailable concentrations being determined using appropriate bioavailability modelling.

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