SCHEDULE 1
Articles 3(2) and 4(3) and (4)
Part A
Criteria for identifying the types of river, loch or transitional water to which the environmental standards specified in Part B of this Schedule apply
1. Subject to paragraph 2 below, to determine the ammonia, the dissolved oxygen and biochemical oxygen demand standards applicable to a river or any part thereof, SEPA shall classify the river or part as being of the Type specified in Table 1 below which corresponds with the applicable site altitude specified in column 1 and the applicable alkalinity range specified in column 2, 3, 4, 5 or 6 of that Table.
2. SEPA shall classify any river designated as a salmonid water for the purposes of Directive 2006/44/EC( a) as being of the Type "salmonid" for the purpose of determining which of the standards for dissolved oxygen and biochemical oxygen demand specified in Tables 1 and 2 in Part B of this Schedule, respectively, apply.
3. To determine the soluble reactive phosphorus standards applicable to a river or any part thereof, SEPA shall classify the river or part as being of the Type specified in Table 2 below which corresponds with the applicable site altitude specified in column 1 of that Table and the applicable alkalinity range specified in column 2 or 3 of that Table.
4. To determine the dissolved oxygen standards applicable to a freshwater loch or any part thereof, SEPA shall classify the loch or part as being of the Type specified in column 1 of Table 3 below which corresponds with the applicable description specified in column 2 of that Table.
5. Subject to paragraph 8 below, to determine the river flow standards applicable to a river or part thereof, SEPA shall classify the river or part as being of the Type specified in column 1 of Table 4 below which corresponds to the applicable macrophyte community specified in column 2 of that Table.
6. SEPA shall identify the macrophyte communities specified in column 2 of Table 4 below in accordance with Table 5 and paragraph 7 below.
7. To identify the macrophyte community associated with a river or part thereof for the purposes of paragraph 6 above-
(a) SEPA shall, subject to sub-paragraph (c) below, assign a score of -1 for every record of a species specified in column 2 of Table 5 below with a "(-)" sign recorded against it in column 3 of that Table;
(b) SEPA shall, subject to sub-paragraph (c) below, assign a score +1 for every record of a species specified in column 2 of Table 5 below with a "(+)" sign recorded against it in column 3 of that Table;
(c) where the name of a species specified in column 2 of Table 5 below is followed by a "(3)", SEPA shall only assign a score for a record of that species if the percentage of the channel area covered by the species is greater than 5%;
(d) SEPA shall calculate the total score for an identification step listed in column 1 of Table 5 below by summing the scores for records of those macrophyte species listed in column 2 of that Table which correspond to that identification step; and SEPA shall begin the identification procedure at identification step number 1;
(e) after having calculated the total score for an identification step, SEPA shall determine within which of the two possible ranges of total score specified for that step in column 4 of Table 5 below the calculated total score falls; and
(f) SEPA shall then-
(i) proceed to the identification step number given in column 5 of Table 5 below which corresponds to the range of total score within which the calculated total score falls; or
(ii) classify the macrophyte community associated with the river or part as being of the macrophyte community specified in column 5 of Table 5 below which corresponds to the range of total score within which the calculated total score falls.
8. Where there are insufficient macrophyte data to enable SEPA to identify macrophyte communities in accordance with Table 5 below and paragraph 7, SEPA shall classify the river or part thereof as being of the Type specified in column 1 of Table 6 below which corresponds to the applicable descriptions specified in columns 2, 3 and 4 of that Table.
9. In order to determine the appropriate environmental standard to apply to a freshwater or brackish loch or any part thereof, in accordance with paragraphs 18 to 21 of Part B of this Schedule, SEPA shall classify-
(a) the physical characteristics of the loch or part specified in column 1 of Table 7 below into the categories specified in column 3 of that Table which correspond to the applicable measurements specified in column 3; and
(b) the geological characteristics of the loch or part as being of the category specified in column 1 of Table 8 below which corresponds to the applicable descriptions or measurements specified in columns 2, 3, 4 and 5 of that Table.
Table 1: Criteria for identifying the types of river to which the dissolved oxygen(i), biochemical oxygen demand(ii)and ammonia(iii)standards for rivers apply
Column 1 | Column 2 | Column 3 | Column 4 | Column 5 | Column 6 |
|---|
site altitude | Alkalinity (as mg/l CaCO 3) |
|---|
= 10 | > 10 and = 50 | > 50 and = 100 | > 100 and = 200 | > 200 |
|---|
= 80 metres above mean sea level | Type 1 | Type 2 | Type 3 | Type 5 | Type 7 |
|---|
> 80 metres above mean sea level | Type 4 | Type 6 |
|---|
Notes to Table 1 :
(i) The environmental standards for dissolved oxygen are specified in Table 1 in Part B of this Schedule.
(ii)The environmental standards for biochemical oxygen demand are specified in Table 2 in Part B of this Schedule.
(iii) The environmental standards for ammonia are specified in Table 3 in Part B of this Schedule.
Table 2: Criteria for identifying types of river to which the soluble reactive phosphorus(i)standards for rivers apply
Column 1 | Column 2 | Column 3 |
|---|
site altitude | Alkalinity (as mg/l CaCO 3) |
|---|
< 50 | = 50 |
|---|
= 80 metres above mean sea level | Type 1n | Type 3n |
|---|
> 80 metres above mean sea level | Type 2n | Type 4n |
|---|
Note to Table 2 :
(i) The environmental standards for soluble reactive phosphorus are specified in Table 5 in Part B of this Schedule.
Table 3: Criteria for identifying types of loch to which the dissolved oxygen standards for freshwater lochs(i)apply
Column 1 | Column 2 |
Type | Description |
Salmonid | Freshwater lochs which would naturally support populations of salmonid fish |
Cyprinid | Freshwater lochs in which populations of salmonid fish do not naturally occur |
Note to Table 3:
(i) The environmental standards for dissolved oxygen in freshwater lochs are specified in Table 6 in Part B of this Schedule.
Table 4: Criteria for identifying types of river to which the environmental standards for river flows(i)apply where sufficient macrophyte data are available to identify macrophyte communities in accordance with Table 5 below
Column 1 | Column 2 |
|---|
Type | Macrophyte community (ii) |
|---|
A1 | I |
|---|
II |
A2 | III |
|---|
B1 | V |
|---|
B2 | VI |
|---|
C1 | VII |
|---|
C2 | VIII |
|---|
D1 | IX |
|---|
D2 | X |
|---|
Note to Table 4 :
(i) The environmental standards for river flows are specified in Tables 11 to 14 in Part B of this Schedule.
Table 5: Identification of macrophyte communities further to Table 4 above
Column 1 | Column 2 | Column 3 | Column 4 | Column 5 |
|---|
Identification step number | Macrophyte species | Score for presence | Total score | Go to step number as indicated and macrophyte communities |
|---|
1 | Cladophora glomerata agg.(i)
Epilobium hirsutum
Pellia epiphylla
Racomitrium aciculare
Ranunculus flammula
Solanum dulcamara
Sparganium erectum | (-)
(-)
(+)
(+)
(+)
(-)
(-) | -1 or less | 2 |
|---|
0 or more | 3 |
2 | Amblystegium fluviatile
Apium nodiflorum
Carex riparia
Conocephalum conicum
Glyceria maxima
Rhynchostegium riparoides
Verrucaria species | (+)
(-)
(-)
(+)
(-)
(+)
(+) | 0 or less | 4 |
|---|
1 or more | 5 |
3 | Juncus bulbosus (3)
Phalaris arundinacea
Polytrichum commune
Potentilla erecta
Rhynchostegium riparoides
Sphagnum species
Verrucaria species | (+).
(-)
(+)
(+)
(-)
(+)
(-) | -1 or less | 6 |
|---|
0 or more | 7 |
4 | Enteromorpha species
Nuphar lutea
Potamogeton pectinatus
Rorippa amphibia
Sagittaria sagittifolia | (-)
(-)
(-)
(-)
(-) | -2 or less | 8 |
|---|
-1 or more | 9 |
5 | Elodea canadensis
Eleocharis palustris
Mimulus guttatus agg .(i)
Myosotis scorpiodes (3)
Oenanthe crocata (3)
Polygonum amphibium | (+)
(+)
(+)
(+)
(-)
(+) | 1 or less | Community V |
|---|
2 or more | Community VI |
6 | Chiloscyphus polyanthos
Glyceria fluitans (3)
Hygrohypnum ochraceum
Lemanea fluviatilis
Thamnobryum alopecurum
Verrucaria species | (+)
(-)
(+)
(+)
(+)
(+) | 0 or less | Community VII |
|---|
1 or more | Community VIII |
7 | Eleocharis palustris
Equisetum fluviatile (3)
Glyceria fluitans (3)
Hyocomium armoricum
Nardus stricta
Scapania undulata | (-)
(-)
(-)
(+)
(+)
(+) | -1 or less | Community IX |
|---|
0 or more | Community X |
8 | Berula erecta
Carex riparia
Eupatorium cannabinum
Glyceria maxima (3)
Iris pseudocorus
Phragmites australis
Rorippa nasturtium-aquaticum/microphylla agg.(3) (i) | (-)
(-)
(-)
(-)
(-)
(-)
(-) | -4 or less | Community I |
|---|
-3 or more | Community II |
9 | Berula erecta
Callitriche obtusangula
Carex acutiformis
Glyceria maxima
Iris pseudocorus
Ranunculus calcareus | (-)
(-)
(-)
(-)
(-) | -4 or less | Community III |
|---|
-3 or more | Community IV |
| (penicillatus sub-species | | | |
|---|
| pseudofluitans) (3) | (-) | | |
|---|
| Veronica anagallis-aquatica | (-) | | |
|---|
Note to Table 5 :
(i) "Agg" in column 2 of this Table means "aggregations".
Table 6: Criteria for the identification of types of river which the environmental standards for river flows(i)apply in the absence of the macrophyte data necessary to identify macrophyte communities in accordance with Table 5
Column 1 | Column 2 | Column 3 | Column 4 |
|---|
Type | Standard Average Annual Rainfall mm (period 1961-1990(ii) | Base Flow Index ( BFI)(iii) | Catchment area (km 2) |
|---|
A1 | < 810.5 | < 0.715 | Any |
|---|
= 0.715 | = 251.8 |
A2 | < 810.5 | = 0.715 | < 251.8 | = 100 (A2 headwaters)
> 100 (A2 downstream) |
|---|
= 810.5 and < 1413 | = 0.7495 | Any | = 100 (A2 headwaters)
> 100 (A2 downstream) |
B1 | = 810.5 and < 1155 | = 0.3615 and < 0.7495 | < 267.4 |
|---|
B2 | = 810.5 and < 1413 | = 0.3615 and < 0.7495 | = 267.4 |
|---|
C2 | = 1155 and < 1413 | = 0.3615 and < 0.7495 | < 267.4 |
|---|
= 1413 | = 0.3615 | = 32.33 |
D2 | = 1413 | = 0.3615 | < 32.33 |
|---|
= 810.5 | < 0.3615 | Any |
Notes to Table 6 :
(i) The environmental standards for river flows are specified in Tables 11 to 14 in Part B of this Schedule.
(ii) The period is 1st January 1961 to 31st December 1990.
(ii) "Base flow" is the volume of flow in a river resulting from groundwater inputs rather than direct water run-off. "Base flow index ( BFI)" is an expression of the volume of base flow in a river as a fraction of the total flow.
Table 7: Physical characteristics used to identify loch types to which the environmental standards for freshwater and brackish loch levels(i)apply
Column 1 | Column 2 | Column 3 |
|---|
Characteristic | Units | Categories |
|---|
Mean depth | metres | Shallow
< 3 | Deep
= 3 |
|---|
Altitude | metres | Low
< 200 | Mid
= 200 but < 800 | High
= 800 |
|---|
Size
(loch area) | hectares | Small
< 50 | Large
= 50 |
|---|
Basin form | V d = 3D mean/D max, where 'D' = depth of loch in metres (ii) | V
V d < 0.67 | L
V d = 0.67 |
|---|
Notes to Table 7 :
(i) The environmental standards for freshwater and brackish loch levels are specified in Tables 15 to 17 in Part B of this Schedule.
(ii) "D mean" means the mean depth. "D max" means the maximum depth.
Table 8: Geological characteristics used to identify loch types to which the environmental standards for freshwater and brackish loch levels (i) apply
Column 1 | Column 2 | Column 3 | Column 4 | Column 5 |
|---|
Categories | Solid geology of catchment | Alkalinity | Conductivity | Colour |
|---|
| % of catchment | Micro-equivalents per litre | Calcium carbonate (mg/l) | Micro Siemens per centimetre | Platinum (mg/l) |
|---|
Peat | > 75 % peat | n/a | n/a | n/a | > 30 |
|---|
Low alkalinity | > 90 % siliceous | < 200 | < 10 | = 70 | = 30 |
|---|
Moderate alkalinity | > 50 % siliceous and = 90 % siliceous | 200 - 1000 | 10 - 50 | > 70 and = 250 |
|---|
High alkalinity | > 50 % calcareous | > 1000 | > 50 | > 250 and = 1000 |
|---|
Marl | > 65 % limestone |
|---|
Brackish | Any | n/a | n/a | > 1000 |
|---|
(i) The environmental standards for freshwater and brackish loch levels are specified in Tables 15 to 17 in Part B of this Schedule.