LegalizeThe Water Framework Directive (Classification, Priority Substances and Shellfish Waters) Regulations (Northern Ireland) 2015
| Good standards for rivers and freshwater lakes | Good standards for rivers and freshwater lakes | Good standards for transitional and coastal waters | Good standards for transitional and coastal waters |
|---|---|---|---|
| Column 1 | Column 2 | Column 3 | Column 4 |
| Annual mean (µg/l) | 95-percentile (µg/l) | Annual mean (µg/l) | 95-percentile (µg/l) |
| 18 | 187 | 18 | 187 |
| Good standards for rivers and freshwater lakes | Good standards for rivers and freshwater lakes | ||
| --- | --- | ||
| Column 1 | Column 2 | ||
| Annual mean (µg/l) | 95-percentile (µg/l) | ||
| 0.01 | 0.77 | ||
| Good standards for rivers and freshwater lakes | Good standards for rivers and freshwater lakes | ||
| --- | --- | ||
| Column 1 | Column 2 | ||
| Annual mean (µg/l) | 95-percentile (µg/l) | ||
| 0.3 | 0.58 | ||
| Good standard for rivers and freshwater lakes | Good standard for rivers and freshwater lakes | Good standard for transitional and coastal waters | Good standard for transitional and coastal waters |
| --- | --- | --- | --- |
| Column 1 | Column 2 | Column 3 | Column 4 |
| Annual mean (µg/l) | 95-percentile (µg/l) | Annual mean (µg/l) | 95-percentile (µg/l) |
| 0.001 | 0.01 | 0.0002 | 0.001 |
| Good standards for rivers and freshwater lakes | Good standards for rivers and freshwater lakes | Good standards for transitional and coastal waters | Good standards for transitional and coastal waters |
| --- | --- | --- | --- |
| Column 1 | Column 2 | Column 3 | Column 4 |
| Annual mean (µg/l) | 95-percentile (µg/l) | Annual mean (µg/l) | 95-percentile (µg/l) |
| 7.7 | 46 | 7.7 | 46 |
| Good standards for rivers and freshwater lakes | Good standards for rivers and freshwater lakes | ||
| --- | --- | ||
| Column 1 | Column 2 | ||
| Annual mean (µg/l) | 95-percentile (µg/l) | ||
| 140 | 1848 | ||
| Good standards for rivers and freshwater lakes | Good standards for rivers and freshwater lakes | Good standards for transitional and coastal waters | Good standards for transitional and coastal waters |
| --- | --- | --- | --- |
| Column 1 | Column 2 | Column 3 | Column 4 |
| Annual mean (µg/l) | 95-percentile (µg/l) | Annual mean (µg/l) | 95-percentile (µg/l) |
| 74 | 380 | 74 | 370 |
| Good standard for rivers and freshwater lakes | Good standard for rivers and freshwater lakes | Good standard for transitional and coastal waters | Good standard for transitional and coastal waters |
| --- | --- | --- | --- |
| Column 1 | Column 2 | Column 3 | Column 4 |
| Annual mean (µg/l) | 95-percentile (µg/l) | Annual mean (µg/l) | 95-percentile (µg/l) |
| 0.1 | 0.28 | 0.1 | 0.28 |
| Good standard for rivers and freshwater lakes | Good standard for transitional and coastal waters | ||
| --- | --- | ||
| Annual mean (µg/l) | Annual mean (µg/l) | ||
| Not applicable | 21 | ||
| Good standards for rivers and freshwater lakes | Good standards for transitional and coastal waters | ||
| --- | --- | ||
| (1) bioavailable means the fraction of the dissolved concentration of zinc likely to result in toxic effects as determined using the Metal Bioavailability Assessment Tool (also referred to as a PNEC Estimator) for zinc. | (1) bioavailable means the fraction of the dissolved concentration of zinc likely to result in toxic effects as determined using the Metal Bioavailability Assessment Tool (also referred to as a PNEC Estimator) for zinc. | ||
| (2) Ambient Background Concentration is an estimate of background levels of zinc based on a low percentile of monitoring data. A figure of 1 µg/l has been estimated for freshwaters in Northern Ireland. | (2) Ambient Background Concentration is an estimate of background levels of zinc based on a low percentile of monitoring data. A figure of 1 µg/l has been estimated for freshwaters in Northern Ireland. | ||
| Column 1 | Column 2 | ||
| Annual mean | Annual mean | ||
| 10.9 bioavailable[^f01026] plus Ambient Background Concentration[^f01027] (µg/l) dissolved | 6.8 dissolved plus Ambient Background Concentration (µg/l) | ||
| Column 1 | Column 2 | Column 3 | Column 4 |
| --- | --- | --- | --- |
| Number | Name of substance | Chemical Abstracts Service number | Date from which standards apply |
| Number | Name of substance | Chemical Abstracts Service number | Date from which standards apply |
| Number | Name of substance | Chemical Abstracts Service number | Date from which standards apply |
| (1) 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. | (1) 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. | (1) 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. | (1) 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. |
| (2) Inland surface waters encompass rivers and lakes and related artificial or heavily modified water bodies. | (2) Inland surface waters encompass rivers and lakes and related artificial or heavily modified water bodies. | (2) Inland surface waters encompass rivers and lakes and related artificial or heavily modified water bodies. | (2) Inland surface waters encompass rivers and lakes and related artificial or heavily modified water bodies. |
| (3) This parameter is the Environmental Quality Standard 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. | (3) This parameter is the Environmental Quality Standard 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. | (3) This parameter is the Environmental Quality Standard 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. | (3) This parameter is the Environmental Quality Standard 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. |
| (4) 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. | (4) 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. | (4) 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. | (4) 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. |
| (5) For cadmium and its compounds (No 6) the EQS values vary dependent upon the hardness of the water as specified in five class categories (class 1: <40mg CaCO₃/l, class 2: 40 to <50mg CaCO₃/l, class 3: 50 to <100mg CaCO₃/l, class 4: 100 to <200mg CaCO₃/l and class 5: ≥200mg CaCO₃/l). | (5) For cadmium and its compounds (No 6) the EQS values vary dependent upon the hardness of the water as specified in five class categories (class 1: <40mg CaCO₃/l, class 2: 40 to <50mg CaCO₃/l, class 3: 50 to <100mg CaCO₃/l, class 4: 100 to <200mg CaCO₃/l and class 5: ≥200mg CaCO₃/l). | (5) For cadmium and its compounds (No 6) the EQS values vary dependent upon the hardness of the water as specified in five class categories (class 1: <40mg CaCO₃/l, class 2: 40 to <50mg CaCO₃/l, class 3: 50 to <100mg CaCO₃/l, class 4: 100 to <200mg CaCO₃/l and class 5: ≥200mg CaCO₃/l). | (5) For cadmium and its compounds (No 6) the EQS values vary dependent upon the hardness of the water as specified in five class categories (class 1: <40mg CaCO₃/l, class 2: 40 to <50mg CaCO₃/l, class 3: 50 to <100mg CaCO₃/l, class 4: 100 to <200mg CaCO₃/l and class 5: ≥200mg CaCO₃/l). |
| (6) 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. | (6) 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. | (6) 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. | (6) 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. |
| (7) No indicative parameter is provided for this group of substances. The indicative parameter(s) must be defined through the analytical method. | (7) No indicative parameter is provided for this group of substances. The indicative parameter(s) must be defined through the analytical method. | (7) No indicative parameter is provided for this group of substances. The indicative parameter(s) must be defined through the analytical method. | (7) No indicative parameter is provided for this group of substances. The indicative parameter(s) must be defined through the analytical method. |
| (8) 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). | (8) 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). | (8) 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). | (8) 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). |
| (9) There is insufficient information available to set a MAC-EQS for these substances. | (9) There is insufficient information available to set a MAC-EQS for these substances. | (9) There is insufficient information available to set a MAC-EQS for these substances. | (9) There is insufficient information available to set a MAC-EQS for these substances. |
| (10) 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. | (10) 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. | (10) 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. | (10) 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. |
| (11) 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). | (11) 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). | (11) 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). | (11) 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). |
| (12) These EQS refer to bioavailable concentrations of the substances. | (12) These EQS refer to bioavailable concentrations of the substances. | (12) These EQS refer to bioavailable concentrations of the substances. | (12) These EQS refer to bioavailable concentrations of the substances. |
| (13) 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. | (13) 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. | (13) 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. | (13) 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. |
| Good standards for rivers and freshwater lakes | Good standards for rivers and freshwater lakes | Good standards for transitional and coastal waters | Good standards for transitional and coastal waters |
|---|---|---|---|
| Application of the standards set out in Table 47 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 a standard must be in accordance with implementing acts adopting technical specifications for chemical monitoring and quality of analytical results, in accordance with the Water Framework Directive. 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 the Water Framework Directive, the Department 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 the Department introduces statistical methods, such methods must apply with rules laid down in accordance with the examination procedure referred to in Article 9(2) of Directive 2008/105/EC. With the exception of cadmium, lead, mercury and nickel (hereinafter “metals”) the standards set out in Table 47 are expressed as total concentrations in the whole water sample. In the case of metals the standards 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. The Department may, when assessing the monitoring results against the standards, take into account: natural background concentrations for metals and their compounds, if they prevent compliance with the standard; and 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. | Application of the standards set out in Table 47 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 a standard must be in accordance with implementing acts adopting technical specifications for chemical monitoring and quality of analytical results, in accordance with the Water Framework Directive. 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 the Water Framework Directive, the Department 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 the Department introduces statistical methods, such methods must apply with rules laid down in accordance with the examination procedure referred to in Article 9(2) of Directive 2008/105/EC. With the exception of cadmium, lead, mercury and nickel (hereinafter “metals”) the standards set out in Table 47 are expressed as total concentrations in the whole water sample. In the case of metals the standards 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. The Department may, when assessing the monitoring results against the standards, take into account: natural background concentrations for metals and their compounds, if they prevent compliance with the standard; and 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. | Application of the standards set out in Table 47 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 a standard must be in accordance with implementing acts adopting technical specifications for chemical monitoring and quality of analytical results, in accordance with the Water Framework Directive. 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 the Water Framework Directive, the Department 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 the Department introduces statistical methods, such methods must apply with rules laid down in accordance with the examination procedure referred to in Article 9(2) of Directive 2008/105/EC. With the exception of cadmium, lead, mercury and nickel (hereinafter “metals”) the standards set out in Table 47 are expressed as total concentrations in the whole water sample. In the case of metals the standards 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. The Department may, when assessing the monitoring results against the standards, take into account: natural background concentrations for metals and their compounds, if they prevent compliance with the standard; and 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. | Application of the standards set out in Table 47 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 a standard must be in accordance with implementing acts adopting technical specifications for chemical monitoring and quality of analytical results, in accordance with the Water Framework Directive. 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 the Water Framework Directive, the Department 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 the Department introduces statistical methods, such methods must apply with rules laid down in accordance with the examination procedure referred to in Article 9(2) of Directive 2008/105/EC. With the exception of cadmium, lead, mercury and nickel (hereinafter “metals”) the standards set out in Table 47 are expressed as total concentrations in the whole water sample. In the case of metals the standards 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. The Department may, when assessing the monitoring results against the standards, take into account: natural background concentrations for metals and their compounds, if they prevent compliance with the standard; and 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. |
| 1 | Alachlor | 15972-60-8 | |
| 2 | Anthracene | 120-12-7 | 14/09/15-21/12/15 |
| 22/12/15 onwards | |||
| 3 | Atrazine | 1912-24-9 | |
| 4 | Benzene | 71-43-2 | |
| 5 | Brominated diphenylethers[^f01031] | 32534-81-9 | 14/09/15-21/12/15 |
| 22/12/15 onwards | |||
| 6 | Cadmium and its compounds (depending on water hardness classes)[^f01032] | 7440-43-9 | |
| 6a | Carbon-tetrachloride[^f01033] | 56-23-5 | |
| 7 | C10-13 Chloroalkanes[^f01034] | 85535-84-8 | |
| 8 | Chlorfenvinphos | 470-90-6 | |
| 9 | Chlorpyrifos (Chlorpyrifos-ethyl) | 2921-88-2 | |
| 9a | Cyclodiene pesticides: | ||
| Aldrin[^f01033] | 309-00-2 | ||
| Dieldrin[^f01033] | 60-57-1 | ||
| Endrin[^f01033] | 72-20-8 | ||
| Isodrin[^f01033] | 465-73-6 | ||
| 9b | DDT total[^f01033] [^f01035] | not applicable | |
| Para-para-DDT[^f01033] | 50-29-3 | ||
| 10 | 1,2-Dichloroethane | 107-06-2 | |
| 11 | Dichloro-methane | 75-09-2 | |
| 12 | Di(2-ethylhexyl)-phthalate (DEHP) | 117-81-7 | |
| 13 | Diuron | 330-54-1 | |
| 14 | Endosulfan | 115-29-7 | |
| 15 | Fluoranthene | 206-44-0 | 14/09/15-21/12/15 |
| 22/12/15 onwards | |||
| 16 | Hexachlorobenzene | 118-74-1 | |
| 17 | Hexachlorobutadiene | 87-68-3 | |
| 18 | Hexachloro-cyclohexane | 608-73-1 | |
| 19 | Isoproturon | 34123-59-6 | |
| 20 | Lead and its compounds | 7439-92-1 | 14/09/15-21/12/15 |
| 22/12/15 onwards | |||
| 21 | Mercury and its compounds | 7439-97-6 | |
| 22 | Naphthalene | 91-20-3 | 14/09/15-21/12/15 |
| 22/12/15 onwards | |||
| 23 | Nickel and its compounds | 7440-02-0 | 14/09/15-21/12/15 |
| 22/12/15 onwards | |||
| 24 | Nonylphenol (4-Nonylphenol) | 104-40-5 | |
| 25 | Octylphenol ((4-(1,1’,3,3’-tetramethylbutyl)-phenol)) | 140-66-9 | |
| 26 | Pentachlorobenzene | 608-93-5 | |
| 27 | Pentachlorophenol | 87-86-5 | |
| 28 | Polyaromatic hydrocarbons (PAH)[^f01037] | - | |
| Benzo(a)pyrene | 50-32-8 | 14/09/15-21/12/15 | |
| 22/12/15 onwards | |||
| Benzo(b)fluor-anthene | 205-99-2 | 14/09/15-21/12/15 | |
| 22/12/15 onwards | |||
| Benzo(k)fluor-anthene | 207-08-9 | 14/09/15-21/12/15 | |
| 22/12/15 onwards | |||
| Benzo(g,h,i)-perylene | 191-24-2 | 14/09/15-21/12/15 | |
| 22/12/15 onwards | |||
| Indeno(1,2,3-cd)-pyrene | 193-39-5 | 14/09/15-21/12/15 | |
| 22/12/15 onwards | |||
| 29 | Simazine | 122-34-9 | |
| 29a | Tetrachloroethylene[^f01033] | 127-18-4 | |
| 29b | Trichloroethylene[^f01033] | 79-01-6 | |
| 30 | Tributyltin compounds (Tributhyltin-cation) | 36643-28-4 | |
| 31 | Trichlorobenzenes | 12002-48-1 | |
| 32 | Trichloromethane | 67-66-3 | |
| 33 | Trifluralin | 1582-09-8 | |
| 34 | Dicofol | 115-32-2 | 22/12/18 onwards |
| 35 | Perfluorooctane sulfonic acid and its derivatives (PFOS) | 1763-23-1 | 22/12/18 onwards |
| 36 | Quinoxyfen | 124495-18-7 | 22/12/18 onwards |
| 37 | Dioxins and dioxin-like compounds | See footnote 9 in Annex X to Directive 2000/60/EC | 22/12/18 onwards |
| 38 | Aclonifen | 74070-46-5 | 22/12/18 onwards |
| 39 | Bifenox | 42576-02-3 | 22/12/18 onwards |
| 40 | Cybutryne | 28159-98-0 | 22/12/18 onwards |
| 41 | Cypermethrin | 52315-07-8 | 22/12/18 onwards |
| 42 | Dichlorvos | 62-73-7 | 22/12/18 onwards |
| 43 | Hexabromo-cyclododecane (HBCDD) | See footnote 11 in Annex X to Directive 2000/60/EC | 22/12/18 onwards |
| 44 | Heptachlor and heptachlor epoxide | 76-44-8 /1024-57-3 | 22/12/18 onwards |
| 45 | Terbutryn | 886-50-0 | 22/12/18 onwards |
PART 3 — Boundary values for biological quality elements
Boundary values for aquatic plants and animals in rivers
1
The Department must apply, as applicable, to any river or part thereof, the “high”, “good”, “moderate”, “poor” or “bad” benthic invertebrate fauna boundary value for rivers specified in Tables 1 and 2 below.
2
The Department must apply, as applicable, to any river or part thereof, the “high”, “good”, “moderate”, “poor” or “bad” phytobenthos boundary value for rivers specified in Table 3 below.
3
The Department must apply, as applicable, to any river or part thereof, the “high”, “good”, “moderate”, “poor” or “bad” aquatic macrophyte boundary value for rivers specified in Table 4 below.
4
The Department must apply, as applicable, to any river or part thereof, the “high”, “good”, “poor” or “bad” freshwater fish boundary value for rivers specified in Table 5 below.
Boundary values for aquatic plants and animals in lakes
5
To determine the phytoplankton and phytobenthos boundaries to apply to a lake or any part thereof, the Department must assign to that lake or any part thereof, the appropriate geological category, depth category and colour category specified in Schedule 1 Part 1, Tables 5, 6 and 7 respectively.
6
The Department must apply, as applicable, to any lake or part thereof, the “high”, “good”, “moderate”, “poor” or “bad” phytoplankton boundary values for lakes specified in columns 2, 3, 4, 5 and 6 of Table 6 below and columns 2, 3, 4, 5 and 6 of Table 7 below and columns 2 and 3 of Table 8 below respectively.
7
The Department must apply, as applicable, to any lake or part thereof, the “high”, “good”, “moderate”, “poor” or “bad” phytobenthos boundary value for lakes specified in Table 9 below.
8
The Department must apply, as applicable, to any lake or part thereof, the “high”, “good”, “moderate”, “poor” or “bad” aquatic macrophyte boundary value for lakes specified in Table 10 below.
9
The Department must apply, as applicable, to any lake or part thereof, the “high”, “good”, “moderate”, “poor” or “bad” freshwater fish boundary value for lakes specified in Table 11 below.
Boundary values for aquatic plants and animals in transitional and coastal waters
10
The Department must apply, as applicable, to any transitional water, coastal water or part thereof, the “high”, “good”, “moderate”, “poor” or “bad” benthic invertebrate fauna boundary values for transitional and coastal waters specified in Tables 12 and 13 below.
11
The Department must apply, as applicable, to any transitional water, coastal water or part thereof, the “high”, “good”, “moderate”, “poor” or “bad” aquatic angiosperm boundary value for transitional and coastal waters specified in Table 14 below.
12
The Department must apply, as applicable, to any transitional water, coastal water or part thereof, the “high”, “good”, “moderate”, “poor” or “bad” phytoplankton boundary value for transitional and coastal waters specified in Table 15 below.
13
The Department must apply, as applicable, to any transitional water, coastal water or part thereof, the “high”, “good”, “moderate”, “poor” or “bad” aquatic macroalgae boundary values for transitional and coastal waters specified in Tables 16 and 17 below.
14
The Department must apply, as applicable, to any transitional water or part thereof, the “high”, “good”, “moderate”, “poor” or “bad” fish boundary value for transitional waters specified in Table 18 below.
PART 4 — Intermittent Discharge Standards
Reading this document does not replace reading the official text published on legislation.gov.uk. Contains public sector information licensed under the Open Government Licence v3.0. We assume no responsibility for any inaccuracies arising from the conversion of the original CLML XML to this format.
This text is published under legislation.gov.uk's own terms of reuse, not a Legalize or public-domain licence.
legislation.gov.uk
Open Government Licence v3.0 (attribution required)
© Crown and database right. Derived from content available under the Open Government Licence v3.0 from legislation.gov.uk.