LegalizeThe Water Framework Directive (Priority Substances and Classification) Regulations (Northern Ireland) 2011
| Name of substance | Chemical Abstracts Service number | All rivers and lakes | All rivers and lakes | All transitional and coastal waters | All transitional and coastal waters |
|---|---|---|---|---|---|
| Name of substance | Chemical Abstracts Service number | Good | Good | Good | Good |
| Name of substance | Chemical Abstracts Service number | Annual mean[^f01020] (AA-EQS) (µg/l) | Maximum allowable concentration[^f01021] (MAC-EQS) (µg/l) | Annual mean[^f01020] (AA-EQS) (µg/l) | Maximum allowable concentration[^f01021] (MAC-EQS) (µg/l) |
| (i)This parameter is the Environmental Quality Standard expressed as an annual average value (AA-EQS). Unless otherwise specified, it applies to the total concentrations of all isomers of the pollutant concerned. | (i)This parameter is the Environmental Quality Standard expressed as an annual average value (AA-EQS). Unless otherwise specified, it applies to the total concentrations of all isomers of the pollutant concerned. | (i)This parameter is the Environmental Quality Standard expressed as an annual average value (AA-EQS). Unless otherwise specified, it applies to the total concentrations of all isomers of the pollutant concerned. | (i)This parameter is the Environmental Quality Standard expressed as an annual average value (AA-EQS). Unless otherwise specified, it applies to the total concentrations of all isomers of the pollutant concerned. | (i)This parameter is the Environmental Quality Standard expressed as an annual average value (AA-EQS). Unless otherwise specified, it applies to the total concentrations of all isomers of the pollutant concerned. | (i)This parameter is the Environmental Quality Standard expressed as an annual average value (AA-EQS). Unless otherwise specified, it applies to the total concentrations of all isomers of the pollutant concerned. |
| (ii)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. | (ii)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. | (ii)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. | (ii)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. | (ii)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. | (ii)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. |
| (iii)For the group of priority substances covered by brominated diphenylethers listed in Decision 2455/2001/EC, an EQS is established only for congener numbers 28, 47, 99, 100, 153 and 154. | (iii)For the group of priority substances covered by brominated diphenylethers listed in Decision 2455/2001/EC, an EQS is established only for congener numbers 28, 47, 99, 100, 153 and 154. | (iii)For the group of priority substances covered by brominated diphenylethers listed in Decision 2455/2001/EC, an EQS is established only for congener numbers 28, 47, 99, 100, 153 and 154. | (iii)For the group of priority substances covered by brominated diphenylethers listed in Decision 2455/2001/EC, an EQS is established only for congener numbers 28, 47, 99, 100, 153 and 154. | (iii)For the group of priority substances covered by brominated diphenylethers listed in Decision 2455/2001/EC, an EQS is established only for congener numbers 28, 47, 99, 100, 153 and 154. | (iii)For the group of priority substances covered by brominated diphenylethers listed in Decision 2455/2001/EC, an EQS is established only for congener numbers 28, 47, 99, 100, 153 and 154. |
| (iv)For cadmium and its compounds 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). | (iv)For cadmium and its compounds 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). | (iv)For cadmium and its compounds 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). | (iv)For cadmium and its compounds 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). | (iv)For cadmium and its compounds 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). | (iv)For cadmium and its compounds 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). |
| (v)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). | (v)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). | (v)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). | (v)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). | (v)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). | (v)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). |
| (vi)If the Department does not apply standards for biota it shall introduce stricter standards for water in order to achieve the same level of protection as the standards for biota set out in regulation 4. The Department shall notify the European Commission of the reasons and basis for using this approach, the alternative standards used, the data and the methodology by which the alternative standards were derived and the categories of surface water to which they would apply. | (vi)If the Department does not apply standards for biota it shall introduce stricter standards for water in order to achieve the same level of protection as the standards for biota set out in regulation 4. The Department shall notify the European Commission of the reasons and basis for using this approach, the alternative standards used, the data and the methodology by which the alternative standards were derived and the categories of surface water to which they would apply. | (vi)If the Department does not apply standards for biota it shall introduce stricter standards for water in order to achieve the same level of protection as the standards for biota set out in regulation 4. The Department shall notify the European Commission of the reasons and basis for using this approach, the alternative standards used, the data and the methodology by which the alternative standards were derived and the categories of surface water to which they would apply. | (vi)If the Department does not apply standards for biota it shall introduce stricter standards for water in order to achieve the same level of protection as the standards for biota set out in regulation 4. The Department shall notify the European Commission of the reasons and basis for using this approach, the alternative standards used, the data and the methodology by which the alternative standards were derived and the categories of surface water to which they would apply. | (vi)If the Department does not apply standards for biota it shall introduce stricter standards for water in order to achieve the same level of protection as the standards for biota set out in regulation 4. The Department shall notify the European Commission of the reasons and basis for using this approach, the alternative standards used, the data and the methodology by which the alternative standards were derived and the categories of surface water to which they would apply. | (vi)If the Department does not apply standards for biota it shall introduce stricter standards for water in order to achieve the same level of protection as the standards for biota set out in regulation 4. The Department shall notify the European Commission of the reasons and basis for using this approach, the alternative standards used, the data and the methodology by which the alternative standards were derived and the categories of surface water to which they would apply. |
| Application of the standards set out in Table 37For 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.With the exception of cadmium, lead, mercury and nickel (hereinafter “metals”) the standards set out in Table 37 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.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; andhardness, pH or other water quality parameters that affect the bioavailability of metals. | Application of the standards set out in Table 37For 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.With the exception of cadmium, lead, mercury and nickel (hereinafter “metals”) the standards set out in Table 37 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.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; andhardness, pH or other water quality parameters that affect the bioavailability of metals. | Application of the standards set out in Table 37For 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.With the exception of cadmium, lead, mercury and nickel (hereinafter “metals”) the standards set out in Table 37 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.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; andhardness, pH or other water quality parameters that affect the bioavailability of metals. | Application of the standards set out in Table 37For 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.With the exception of cadmium, lead, mercury and nickel (hereinafter “metals”) the standards set out in Table 37 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.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; andhardness, pH or other water quality parameters that affect the bioavailability of metals. | Application of the standards set out in Table 37For 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.With the exception of cadmium, lead, mercury and nickel (hereinafter “metals”) the standards set out in Table 37 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.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; andhardness, pH or other water quality parameters that affect the bioavailability of metals. | Application of the standards set out in Table 37For 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.With the exception of cadmium, lead, mercury and nickel (hereinafter “metals”) the standards set out in Table 37 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.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; andhardness, pH or other water quality parameters that affect the bioavailability of metals. |
| Alachlor | 15972-60-8 | 0.3 | 0.7 | 0.3 | 0.7 |
| Anthracene | 120-12-7 | 0.1 | 0.4 | 0.1 | 0.4 |
| Atrazine | 1912-24-9 | 0.6 | 2.0 | 0.6 | 2.0 |
| Benzene | 71-43-2 | 10 | 50 | 8 | 50 |
| Brominated diphenylether[^f01022] | 32534-81-9 | 0.0005 | not applicable | 0.0002 | not applicable |
| Cadmium and its compounds (depending on water hardness classes)[^f01023] | 7440-43-9 | ≤ 0.08(class 1)0.08(class 2)0.09(class 3)0.15(class 4)0.25(class 5) | ≤ 0.45(class 1)0.45(class 2)0.6(class 3)0.9(class 4)1.5(class 5) | 0.2 | ≤ 0.45(class 1)0.45(class 2)0.6(class 3)0.9(class 4)1.5(class 5) |
| Carbon-tetrachloride | 56-23-5 | 12 | not applicable | 12 | not applicable |
| C10-13 Chloroalkanes | 85535-84-8 | 0.4 | 1.4 | 0.4 | 1.4 |
| Chlorfenvinphos | 470-90-6 | 0.1 | 0.3 | 0.1 | 0.3 |
| Chlorpyrifos (Chlorpyrifos-ethyl) | 2921-88-2 | 0.03 | 0.1 | 0.03 | 0.1 |
| Cyclodiene pesticides: | |||||
| Aldrin | 309-00-2 | Σ=0.01 | not applicable | Σ=0.005 | not applicable |
| Dieldrin | 60-57-1 | Σ=0.01 | not applicable | Σ=0.005 | not applicable |
| Endrin | 72-20-8 | Σ=0.01 | not applicable | Σ=0.005 | not applicable |
| Isodrin | 465-73-6 | Σ=0.01 | not applicable | Σ=0.005 | not applicable |
| DDT total[^f01024] | not applicable | 0.025 | not applicable | 0.025 | not applicable |
| Para-para-DDT | 50-29-3 | 0.01 | not applicable | 0.01 | not applicable |
| 1,2-Dichloroethane | 107-06-2 | 10 | not applicable | 10 | not applicable |
| Dichloromethane | 75-09-2 | 20 | not applicable | 20 | not applicable |
| Di(2-ethylhexyl)-phthalate (DEHP) | 117-81-7 | 1.3 | not applicable | 1.3 | not applicable |
| Diuron | 330-54-1 | 0.2 | 1.8 | 0.2 | 1.8 |
| Endosulfan | 115-29-7 | 0.005 | 0.01 | 0.0005 | 0.004 |
| Fluoranthene | 206-44-0 | 0.1 | 1 | 0.1 | 1 |
| Hexachloro-benzene | 118-74-1 | 0.01[^f01025] | 0.05 | 0.01[^f01025] | 0.05 |
| Hexachloro-butadiene | 87-68-3 | 0.1[^f01025] | 0.6 | 0.1[^f01025] | 0.6 |
| Hexachloro-cyclohexane | 608-73-1 | 0.02 | 0.04 | 0.002 | 0.02 |
| Isoproturon | 34123-59-6 | 0.3 | 1.0 | 0.3 | 1.0 |
| Lead and its compounds | 7439-92-1 | 7.2 | not applicable | 7.2 | not applicable |
| Mercury and its compounds | 7439-97-6 | 0.05[^f01025] | 0.07 | 0.05[^f01025] | 0.07 |
| Naphthalene | 91-20-3 | 2.4 | not applicable | 1.2 | not applicable |
| Nickel and its compounds | 7440-02-0 | 20 | not applicable | 20 | not applicable |
| Nonylphenol (4-Nonylphenol) | 104-40-5 | 0.3 | 2.0 | 0.3 | 2.0 |
| Octylphenol ((4-(1,1’,3,3’-tetramethylbutyl)-phenol)) | 140-66-9 | 0.1 | not applicable | 0.01 | not applicable |
| Pentachloro-benzene | 608-93-5 | 0.007 | not applicable | 0.0007 | not applicable |
| Pentachloro-phenol | 87-86-5 | 0.4 | 1 | 0.4 | 1 |
| Benzo(a)pyrene | 50-32-8 | 0.05 | 0.1 | 0.05 | 0.1 |
| Benzo(b)fluor-anthene | 205-99-2 | Σ=0.03 | not applicable | Σ=0.03 | not applicable |
| Benzo(k)fluor-anthene | 207-08-9 | Σ=0.03 | not applicable | Σ=0.03 | not applicable |
| Benzo(g,h,i)-perylene | 191-24-2 | Σ=0.002 | not applicable | Σ=0.002 | not applicable |
| Indeno(1,2,3-cd)-pyrene | 193-39-5 | Σ=0.002 | not applicable | Σ=0.002 | not applicable |
| Simazine | 122-34-9 | 1 | 4 | 1 | 4 |
| Tetrachloro-ethylene | 127-18-4 | 10 | not applicable | 10 | not applicable |
| Trichloro-ethylene | 79-01-6 | 10 | not applicable | 10 | not applicable |
| Tributyltin compounds (Tributhyltin-cation) | 36643-28-4 | 0.0002 | 0.0015 | 0.0002 | 0.0015 |
| Trichloro-benzenes | 12002-48-1 | 0.4 | not applicable | 0.4 | not applicable |
| Trichloro-methane | 67-66-3 | 2.5 | not applicable | 2.5 | not applicable |
| Trifluralin | 1582-09-8 | 0.03 | not applicable | 0.03 | not applicable |
| Name of Substance | Chemical Abstracts Service Number | All Rivers and LakesAnnual Mean Concentration(µg/l) | All transitional, coastal and relevant territorial waters[^f01026]Annual Mean Concentration(µg/l) | ||
| --- | --- | --- | --- | ||
| Name of Substance | Chemical Abstracts Service Number | Good | Good | ||
| (1)“relevant territorial waters” means the waters which extend seaward for 3 miles from the baselines from which the breadth of the territorial sea adjacent to Northern Ireland is measured. | (1)“relevant territorial waters” means the waters which extend seaward for 3 miles from the baselines from which the breadth of the territorial sea adjacent to Northern Ireland is measured. | (1)“relevant territorial waters” means the waters which extend seaward for 3 miles from the baselines from which the breadth of the territorial sea adjacent to Northern Ireland is measured. | (1)“relevant territorial waters” means the waters which extend seaward for 3 miles from the baselines from which the breadth of the territorial sea adjacent to Northern Ireland is measured. | ||
| (2)The reference method of measurement shall be gas chromatography with electron capture detection after extraction by means of an appropriate solvent, or an alternative method that is at least as reliable. The limit of detection is 0.1 µg/litre. The accuracy and precision of the method shall be plus or minus 50% at a concentration which represents twice the value of the limit of determination. | (2)The reference method of measurement shall be gas chromatography with electron capture detection after extraction by means of an appropriate solvent, or an alternative method that is at least as reliable. The limit of detection is 0.1 µg/litre. The accuracy and precision of the method shall be plus or minus 50% at a concentration which represents twice the value of the limit of determination. | (2)The reference method of measurement shall be gas chromatography with electron capture detection after extraction by means of an appropriate solvent, or an alternative method that is at least as reliable. The limit of detection is 0.1 µg/litre. The accuracy and precision of the method shall be plus or minus 50% at a concentration which represents twice the value of the limit of determination. | (2)The reference method of measurement shall be gas chromatography with electron capture detection after extraction by means of an appropriate solvent, or an alternative method that is at least as reliable. The limit of detection is 0.1 µg/litre. The accuracy and precision of the method shall be plus or minus 50% at a concentration which represents twice the value of the limit of determination. | ||
| (3)Where samples are taken from more than one sampling point in relation to the waters in question, the standard shall be satisfied in relation to the samples from each sampling point. | (3)Where samples are taken from more than one sampling point in relation to the waters in question, the standard shall be satisfied in relation to the samples from each sampling point. | (3)Where samples are taken from more than one sampling point in relation to the waters in question, the standard shall be satisfied in relation to the samples from each sampling point. | (3)Where samples are taken from more than one sampling point in relation to the waters in question, the standard shall be satisfied in relation to the samples from each sampling point. | ||
| (4)Maximum Allowable Concentration | (4)Maximum Allowable Concentration | (4)Maximum Allowable Concentration | (4)Maximum Allowable Concentration | ||
| Sampling and analysis of the substances set out in Table 38Samples shall be taken at a frequency sufficient to show any changes in the aquatic environment, having regard in particular to natural variations in hydrological conditions.Where a discharge containing any substance listed is made to any river, lake or transitional, coastal or territorial water, samples shall be taken at a point sufficiently close to the discharge point to be representative of the quality of the aquatic environment in the area affected by the discharge. | Sampling and analysis of the substances set out in Table 38Samples shall be taken at a frequency sufficient to show any changes in the aquatic environment, having regard in particular to natural variations in hydrological conditions.Where a discharge containing any substance listed is made to any river, lake or transitional, coastal or territorial water, samples shall be taken at a point sufficiently close to the discharge point to be representative of the quality of the aquatic environment in the area affected by the discharge. | Sampling and analysis of the substances set out in Table 38Samples shall be taken at a frequency sufficient to show any changes in the aquatic environment, having regard in particular to natural variations in hydrological conditions.Where a discharge containing any substance listed is made to any river, lake or transitional, coastal or territorial water, samples shall be taken at a point sufficiently close to the discharge point to be representative of the quality of the aquatic environment in the area affected by the discharge. | |||
| Perchloroethylene[^f01027] | 127-18-4 | 10 | 10 | ||
| Azinphos-methyl[^f01028] | 86-50-0 | 0.01 | 0.01 | ||
| Demeton[^f01028] | 8065-48-3 | 0.5 | 0.5 | ||
| Omethoate[^f01028] | 1113-02-6 | 0.01 | Not determined | ||
| Triazophos[^f01028] | 24017-47-8 | 0.005 | 0.005 | ||
| 4-chloro-3-methyl-phenol[^f01028] | 59-50-7 | 40 | 40 | ||
| Bentazone[^f01028] | 25057-89-0 | 500 | 500 | ||
| Fenitrothion[^f01028] | 122-14-5 | 0.01 | 0.01 | ||
| 2-chlorophenol[^f01028] | 95-57-8 | 50 | 50 | ||
| Biphenyl[^f01028] | 92-52-4 | 25 | 25 | ||
| Malathion[^f01028] | 121-75-5 | 0.01 | 0.02 | ||
| 1,1,1-trichloroethane[^f01028] | 71-55-6 | 100 | 100 | ||
| Chloronitrotoluenes[^f01028] | 89-60-1 | 10 | 10 | ||
| Triphenyltin and its derivatives[^f01028] | 379-52-2 | 0.02[^f01029] | 0.008[^f01029] | ||
| 1,1,2-trichloroethane[^f01028] | 79-00-5 | 400 | 300 | ||
| Dichlorvos[^f01028] | 95828-55-0 | 0.001 | 0.040.6[^f01029] | ||
| Xylene[^f01028] | 1330-20-7 | 30 | 30 |
PART 3 — Boundary values for biological quality elements
Boundary values for aquatic plants and animals in rivers
1
The Department shall 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 Table 1 and 2 below.
2
The Department shall 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 shall 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.
Boundary values for aquatic plants and animals in lakes
4
The Department shall 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, 6, 7 and 8 of Table 5 and columns 2, 3 and 4 of Table 6 respectively.
5
The Department shall apply, as applicable, to any lake or part thereof, the “high”, “good”, “moderate”, “poor” or “bad” phytobenthos boundary value for lakes specified in Table 7 below.
6
The Department shall 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 8 below.
Boundary values for aquatic plants and animals in transitional and coastal waters
7
The Department shall 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 9 and 10 below.
8
The Department shall 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 11 below.
9
The Department shall 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 12 below.
10
The Department shall 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 13 and 14 below.
11
The Department shall 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 15 below.
| Boundary values for the degree to which the annual mean sensitivity to disturbance of the observed taxa differs from the annual mean sensitivity of the taxa expected under reference conditions | Boundary values for the degree to which the annual mean sensitivity to disturbance of the observed taxa differs from the annual mean sensitivity of the taxa expected under reference conditions |
|---|---|
| Ecological quality ratio | |
| High | 0.97 |
| Good | 0.86 |
| Moderate | 0.75 |
| Poor | 0.63 |
| Bad | < 0.63 |
| Boundary values for the degree to which the annual mean number of disturbance-sensitive taxa differs from the annual mean number of taxa expected under reference conditions | Boundary values for the degree to which the annual mean number of disturbance-sensitive taxa differs from the annual mean number of taxa expected under reference conditions |
| --- | --- |
| Ecological quality ratio | |
| High | 0.85 |
| Good | 0.71 |
| Moderate | 0.57 |
| Poor | 0.47 |
| Bad | < 0.47 |
| Boundary values for the degree to which the relative annual mean abundances of nutrient-sensitive and nutrient-tolerant groups of diatom taxa differ from the relative annual mean abundances of these groups of taxa expected under reference conditions | Boundary values for the degree to which the relative annual mean abundances of nutrient-sensitive and nutrient-tolerant groups of diatom taxa differ from the relative annual mean abundances of these groups of taxa expected under reference conditions |
| --- | --- |
| Ecological quality ratio | |
| High | 0.93 |
| Good | 0.78 |
| Moderate | 0.52 |
| Poor | 0.26 |
| Bad | < 0.26 |
| Boundary values for the degree to which the annual mean abundances of disturbance-sensitive and disturbance-tolerant macrophyte taxa differ from the annual mean abundances of those taxa under reference conditions | Boundary values for the degree to which the annual mean abundances of disturbance-sensitive and disturbance-tolerant macrophyte taxa differ from the annual mean abundances of those taxa under reference conditions |
| --- | --- |
| Ecological quality ratio | |
| High | 0.80 |
| Good | 0.60 |
| Moderate | 0.40 |
| Poor | 0.20 |
| Bad | < 0.20 |
| (1)The term phytoplankton refers to solitary and colonial unicellular algae and cyanobacteria that live in the water column, at least for part of their lifecycle. | (1)The term phytoplankton refers to solitary and colonial unicellular algae and cyanobacteria that live in the water column, at least for part of their lifecycle. |
| --- | --- |
| (2)“mid altitude” means ≥ 200 – 800 metres above sea level. | (2)“mid altitude” means ≥ 200 – 800 metres above sea level. |
| (3)“low altitude” means < 200 metres above mean sea level. | (3)“low altitude” means < 200 metres above mean sea level. |
| Boundary values for the degree to which the biomass of phytoplankton[^f01030]taxa (as represented by the annual mean chlorophyll a concentration) differ from the biomass of those phytoplankton taxa (annual mean chlorophyll a concentration) expected under reference conditions | Boundary values for the degree to which the biomass of phytoplankton[^f01030]taxa (as represented by the annual mean chlorophyll a concentration) differ from the biomass of those phytoplankton taxa (annual mean chlorophyll a concentration) expected under reference conditions |
| Ecological quality ratio | |
| Col 1 | Col 2 |
| Lake charac-teristics (ii) | Marl, shallow; andhigh alkalinity, shallow. |
| High | 0.55 |
| Good | 0.32 |
| Moderate | 0.16 |
| Poor | 0.05 |
| Bad | < 0.05 |
| Boundary values for the degree to which the annual mean percentage of cyanobacteria differ from the annual mean percentage of cyanobacteria expected under reference conditions | Boundary values for the degree to which the annual mean percentage of cyanobacteria differ from the annual mean percentage of cyanobacteria expected under reference conditions |
| --- | --- |
| Ecological quality ratio | Ecological quality ratio |
| Column 1 | Column 2 |
| Geological characteristics | High alkalinity |
| High | 0.97 |
| Good | 0.82 |
| Moderate | 0.61 |
| Poor | 0.15 |
| Bad | < 0.15 |
| Boundary values for the degree to which the relative annual mean abundances of nutrient-sensitive and nutrient-tolerant groups of diatom taxa differ from the relative annual mean abundances of these groups of taxa expected under reference conditions | Boundary values for the degree to which the relative annual mean abundances of nutrient-sensitive and nutrient-tolerant groups of diatom taxa differ from the relative annual mean abundances of these groups of taxa expected under reference conditions |
| --- | --- |
| Ecological quality ratio | |
| Column 1 | Column 2 |
| Low alkalinity lakes | |
| High | 0.90 |
| Good | 0.63 |
| Moderate | 0.44 |
| Poor | 0.22 |
| Bad | < 0.22 |
| Boundary values for the degree to which the annual mean abundance of disturbance-sensitive macrophyte[^f01033] taxa differ from the annual mean abundance of those taxa expected under reference conditions | Boundary values for the degree to which the annual mean abundance of disturbance-sensitive macrophyte[^f01033] taxa differ from the annual mean abundance of those taxa expected under reference conditions |
| --- | --- |
| (1)The term “macrophyte” refers to larger plants, typically including flowering plants, mosses and larger algae, but not including single-celled phytoplankton or diatoms. | (1)The term “macrophyte” refers to larger plants, typically including flowering plants, mosses and larger algae, but not including single-celled phytoplankton or diatoms. |
| Ecological quality ratio | |
| Column 1 | Column 2 |
| High | 0.90 |
| Good | 0.68 |
| Moderate | 0.42 |
| Poor | 0.33 |
| Bad | < 0.33 |
| Boundary values for the degree to which the annual mean occurrence and degree of tributyl tin (TBT) -induced imposex in the common dog whelk, Nucella lapillus, differs from the annual mean occurrence and degree of imposex expected under reference conditions using the Vas Deferens Stage Index (VDSI) (UKTAG Method ISBN 978-1-906934-16-3) | Boundary values for the degree to which the annual mean occurrence and degree of tributyl tin (TBT) -induced imposex in the common dog whelk, Nucella lapillus, differs from the annual mean occurrence and degree of imposex expected under reference conditions using the Vas Deferens Stage Index (VDSI) (UKTAG Method ISBN 978-1-906934-16-3) |
| --- | --- |
| Ecological quality ratio | |
| High | 0.95 |
| Good | 0.33 |
| Moderate | 0.17 |
| Boundary values relating to the degree to which the annual mean number of benthic invertebrate taxa in soft sediments, the diversity of taxa, and the ratio of disturbance-sensitive and disturbance-tolerant taxa differ from that expected under reference conditions (UKTAG Method ISBN 978-1-906934-13-2) | Boundary values relating to the degree to which the annual mean number of benthic invertebrate taxa in soft sediments, the diversity of taxa, and the ratio of disturbance-sensitive and disturbance-tolerant taxa differ from that expected under reference conditions (UKTAG Method ISBN 978-1-906934-13-2) |
| --- | --- |
| Ecological quality ratio | |
| High | 0.75 |
| Good | 0.64 |
| Moderate | 0.44 |
| Poor | 0.24 |
| Bad | < 0.24 |
| Aquatic Angiosperm[^f01034] Boundary values relating to the degree to which the annual mean shoot density, and spatial extent of sea grass beds, differ that expected under reference conditions (UKTAG Method ISBN 978-1-906934-14-9) | Aquatic Angiosperm[^f01034] Boundary values relating to the degree to which the annual mean shoot density, and spatial extent of sea grass beds, differ that expected under reference conditions (UKTAG Method ISBN 978-1-906934-14-9) |
| --- | --- |
| (1)The term “angiosperm” refers to flowering plants. In transitional waters and coastal waters, angiosperms include sea grasses and the flowering plants found in salt marshes, salt marsh tools have not yet been developed. | (1)The term “angiosperm” refers to flowering plants. In transitional waters and coastal waters, angiosperms include sea grasses and the flowering plants found in salt marshes, salt marsh tools have not yet been developed. |
| Ecological quality ratio | |
| High | 0.8 |
| Good | 0.6 |
| Moderate | 0.4 |
| Poor | 0.2 |
| Bad | < 0.2 |
| Boundary values relating to the degree to which biomass, taxonomic composition, bloom frequency and bloom intensity for phytoplankton[^f01035] differ from that expected under reference conditions (UKTAG Method ISBN 978-1-906934-12-5) | Boundary values relating to the degree to which biomass, taxonomic composition, bloom frequency and bloom intensity for phytoplankton[^f01035] differ from that expected under reference conditions (UKTAG Method ISBN 978-1-906934-12-5) |
| --- | --- |
| (1)The term “phytoplankton” refers to solitary and colonial unicellular algae and cyanobacteria that live in the water column, at least for part of their lifecycle. | (1)The term “phytoplankton” refers to solitary and colonial unicellular algae and cyanobacteria that live in the water column, at least for part of their lifecycle. |
| Ecological quality ratio | |
| High | 0.8 |
| Good | 0.6 |
| Moderate | 0.4 |
| Poor | 0.2 |
| Bad | < 0.2 |
| Boundary values relating to the degree to which mean species richness, proportion of red, green and opportunist seaweeds and ecological status group ratio on rocky intertidal areas differ from that expected under reference conditions (UKTAG Method ISBN 978-1-906934-17-0) | Boundary values relating to the degree to which mean species richness, proportion of red, green and opportunist seaweeds and ecological status group ratio on rocky intertidal areas differ from that expected under reference conditions (UKTAG Method ISBN 978-1-906934-17-0) |
| --- | --- |
| Ecological quality ratio | |
| High | 0.8 |
| Good | 0.6 |
| Moderate | 0.4 |
| Poor | 0.2 |
| Bad | < 0.2 |
| Boundary values relating to the degree to which opportunistic macroalgal[^f01036] extent, biomass and entrainment differ from that expected under reference conditions (UKTAG Method ISBN978-1-906934-15-6) | Boundary values relating to the degree to which opportunistic macroalgal[^f01036] extent, biomass and entrainment differ from that expected under reference conditions (UKTAG Method ISBN978-1-906934-15-6) |
| --- | --- |
| (1)The term “macroalgae” refers to multicellular algae such as seaweeds and filamentous algae. | (1)The term “macroalgae” refers to multicellular algae such as seaweeds and filamentous algae. |
| Ecological quality ratio | |
| High | 0.8 |
| Good | 0.6 |
| Moderate | 0.4 |
| Poor | 0.2 |
| Bad | < 0.2 |
| Boundary values relating to the degree to which the annual mean composition and abundance of disturbance-sensitive fish taxa differ from the annual mean composition and abundance of disturbance-sensitive fish taxa expected under reference conditions | Boundary values relating to the degree to which the annual mean composition and abundance of disturbance-sensitive fish taxa differ from the annual mean composition and abundance of disturbance-sensitive fish taxa expected under reference conditions |
| --- | --- |
| Ecological quality ratio | |
| High | 0.8 |
| Good | 0.6 |
| Moderate | 0.4 |
| Poor | 0.2 |
| Bad | < 0.2 |
SCHEDULE2
PART 1 — Determining Ecological Status of Surface Waters that are not designated Heavily Modified or Artificial
1
The Department shall classify the ecological status of surface water bodies that are not designated as heavily modified or artificial in accordance with the following steps:
- (a) Estimate representative values of appropriate indicators of the condition of the relevant biological, physiochemical and hydromorphological quality elements from monitoring or modelling results. The appropriate indicators shall include:
- (i) indicators of biological and other quality elements expected to be most sensitive to the pressures to which the water body is subject;
- (ii) the values for physicochemical quality elements at risk of being so altered as to be failing a physicochemical standard ;
- (iii) the concentrations of those specific pollutants likely to be in the water body in quantities that could cause a failure of a specific pollutant; and
- (iv) the criteria for hydromorphological elements relevant to high status.
- (b) Compare the values of the appropriate indicators estimated from monitoring or modelling with the applicable standards and biological boundary values in Schedule 1 of these Regulations.
- (c) Classify the ecological status of the water body as “high” if the values of all the appropriate indicators of the biological, physicochemical and hydrological quality elements comply with the highest corresponding standards given in Schedule 1; the assessment of morphological condition carried out in accordance with Part 4 Table 1of this Schedule reflects totally or nearly totally undisturbed conditions; and there is no evidence that a high impact alien species has become established and is having an ecological effect on the water body.
- (d) Where a surface water body is not classified as “high” ecological status in accordance with paragraph 1(c), the Department shall classify the ecological status of the surface water body according to the lowest classed biological or physicochemical quality element. If the lowest classed quality element is a specific pollutant or other physicochemical quality element, the class assigned shall be no lower than “moderate” ecological status.
2
In this part, “high impact alien species” means a non-native species of plant or animal that has a detrimental effect on the aquatic ecology or environment.
PART 2 — Determining Chemical Status of Surface Waters
1
The Department shall classify the chemical status of surface water bodies in accordance with the following steps:
- (a) Estimate from monitoring or modelling results the concentrations in the surface water body of appropriate priority substances and other dangerous substances listed in Schedule 1 of these Regulations. The appropriate substances shall include those likely to be in the surface water body in quantities that could cause a failure of the corresponding environmental quality standard.
- (b) Compare the values of the appropriate substances estimated from monitoring or modelling with the applicable standards in Schedule 1.
- (c) Classify the chemical status of the surface water body as good unless the standard for one or more priority substances or other dangerous substances is failed. If one or more is failed, classify as failing to achieve good chemical status.
PART 3 — Determining Ecological Potential of Heavily Modified and Artificial Water Bodies
1
The Department shall classify a surface water body designated as heavily modified or artificial as—
- (a) “good or maximum ecological potential” if the following conditions are met:
- (i) all applicable mitigation measures have been taken; and
- (ii) the values of all the indicators of the quality elements not sensitive to hydromorphological pressures related to the heavily modified or artificial water body designation, including biology, specific pollutants and other physicochemical quality elements achieve the standards for “high” or “good”.
- (b) “moderate ecological potential” if the following conditions are met:
- (i) not all applicable mitigation measures have been taken and the values of one or more of the indicators of the quality elements not sensitive to hydromorphological pressures directly related to the heavily modified or artificial water body designation, including biology, specific pollutants and other physicochemical quality elements achieve the standards for “high”, “good” or “moderate”; or
- (ii) all applicable mitigation measures have been taken and the values of one or more of the indicators of the quality elements not sensitive to hydromorphological pressures directly related to the heavily modified or artificial water body designation, including biology, specific pollutants and other physicochemical quality elements achieve the standards for “moderate”.
- (c) “poor ecological potential” if the values of one or more of the indicators of the biological quality elements not sensitive to hydromorphological pressures directly related to the heavily modified or artificial water body designation achieve the standards for “poor”.
- (d) “bad ecological potential” if the values of one or more of the indicators of biological quality elements not sensitive to hydromorphological pressures directly related to the heavily modified or artificial water body designation achieve the standards for “bad”.
2
In order to determine how to classify surface water bodies designated as heavily modified or artificial in accordance with paragraph 1, the Department shall—
- (a) determine whether or not all practicable mitigation has been taken to improve the modified or artificial hydromorphological characteristics of the surface water body other than that which would have a significant adverse impact on:
- (i) the use served by the modified or artificial characteristics; or
- (ii) the wider environment.
- (b) estimate representative values of indicators of the condition of the relevant biological and physicochemical quality elements from monitoring or modelling results. The indicators shall include:
- (i) indicators of the biological quality elements which are not sensitive to the artificial or heavily modified characteristics of the water body;
- (ii) the concentrations of those specific pollutants likely to be in the surface water body in quantities that could cause a failure of a specific pollutant standard; and
- (iii) the values for those other physicochemical quality elements at risk of being so altered as to be failing a physicochemical standard.
- (c) compare the values of the indicators estimated from monitoring or modelling with the applicable standards in Schedule 1 of these Regulations.
3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PART 4 — Determining High Status for Morphological Elements
1
The Department shall undertake detailed screening of morphological conditions to confirm that high status conditions are present within relevant water bodies.
- (a) Once the Department has, in accordance with paragraph 4 of Part 1 of Schedule 1, assigned a type to a river or part thereof, the Department shall consider both direct and indirect pressures on the physical character of rivers at local scale, water body scale and catchment scale. The physical character of a river includes the condition of the channel bed, banks and riparian zone, channel pattern and river continuity.
- (b) To assess the morphological condition of lake water bodies, the Department shall assign a type in accordance with paragraph 8(c) of Part 1 of Schedule 1. The morphological condition of High Status lakes must not be altered by more than 5%.
- (c) To assess the morphological condition of transitional and coastal water bodies, the Department shall consider both direct and indirect pressures on the physical character of transitional and coastal waters at local scale, water body scale and catchment scale.
2
High Status morphological condition must not be assigned to
- (a) Any water body that has been identified as being at risk of failing to achieve good ecological status due to the extent of morphological pressures; or
- (b) Any artificial or heavily modified water body.
PART 5 — Determining Overall Status of Surface Water Bodies
1
The Department shall determine the overall status of a surface water body, other than those designated as heavily modified or artificial, by combining the classification of ecological status and chemical status in one of the following and alternative ways:
- (a) where the ecological and hydromorphological status of a surface water body is high and the chemical status of the surface water body is good, then the overall status of the surface water body is “high”.
- (b) where the ecological status is good and the chemical status is good, then the overall status is “good”.
- (c) where the ecological status is high, good or moderate, and the chemical status is failing to achieve good, then the overall status is “moderate”.
- (d) where the ecological status is moderate and irrespective of chemical status, then the overall status is “moderate”.
- (e) where the ecological status is poor or bad and irrespective of the chemical status, the overall status shall be the same classification as the ecological status, that is “poor” or “bad”.
SCHEDULE3 — Determining Quantitative status of Groundwater
1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SCHEDULE 4 — Presentation of monitoring results and classification
| Ecological status classification | Colour code |
|---|---|
| High | Blue |
| Good | Green |
| Moderate | Yellow |
| Poor | Orange |
| Bad | Red |
| Ecological potential classification | Colour code |
| --- | --- |
| Ecological potential classification | Artificial water bodies |
| Good and above | Equal green and light grey stripes |
| Moderate | Equal yellow and light grey stripes |
| Poor | Equal orange and light grey stripes |
| Bad | Equal red and light grey stripes |
| Chemical status classification | Colour code |
| --- | --- |
| Good | Blue |
| Failing to achieve good | Red |
| Groundwater chemical status | Colour code |
| --- | --- |
| Good | Green |
| Poor | Red |
| Groundwater quantitative status | Colour code |
| --- | --- |
| Good | Green |
| Poor | Red |
Signed
Sealed with the Official Seal of the Department of the Environment on 21 January 2011.
Denis McMahon — A senior officer of the Department of the Environment
Explanatory note
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Footnotes
[^f00001]: S.I. 2008/301
[^f00002]: 1972 c.68
[^f00004]: S.R. 2003 No. 544
[^f00005]: O.J. No. L348, 16.12.2008, p.84
[^f00006]: O.J. No. L237, 22.12.2000, p.1; amended by Decision 2455/2001/EC of the European Parliament and of the Council of 20 November 2001establishing the list of priority substances in the field of water policy and amending Directive 2000/60/EC (O.J. No. L331, 15.12.2001, p.1)
[^f00007]: 1954 c.33 (N.I.)
[^f00008]: S.R. 2009 No. 254
[^f00009]: OJ No L 230 19.8.1991 concerning the placing of plant protection products on the market
[^f00010]: S.R. 1998 No. 397
Editorial notes
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