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ANNEX 15 SURFACE WATER RESOURCES STANDARDS - ADDITIONS TO THE 2007 DIRECTIONS
Additions to Table 11 of Part B of Schedule 1 to the 2007 Directions
Table 11(a): Environmental standards for moderate river flows
Column 1 | Column 2 | Column 3 | Column 4 | Column 5 |
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| permitted abstraction per day as a proportion of natural flow |
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| Moderate |
River type | Maximum volume of water removed per day at daily flows = Qn 60 | Maximum volume of water removed per day at daily flows < Qn 60 and = Qn 70 | Maximum volume of water removed per day at daily flows < Qn 70 and = Qn 95 | Maximum volume of water removed per day at daily flows < Qn 95 |
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A1 | 60 % of daily Q n | 55 % of daily Q n | 50 % of daily Q n | 45 % of Q n95 |
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A2 (downstream), B1, B2, C1, D1 | 55 % of daily Q n | 50 % of daily Q n | 45 % of daily Q n | 40 % of Q n95 |
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A2 (headwaters), C2, D2 | 50 % of daily Q n | 45 % of daily Q n | 40 % of daily Q n | 35 % of Q n95 |
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Table 11(b): Environmental standards for poor river flows
Column 1 | Column 2 | Column 3 | Column 4 | Column 5 |
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| permitted abstraction per day as a proportion of natural flow |
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| Poor |
River type | Maximum volume of water removed per day at daily flows = Qn 60 | Maximum volume of water removed per day at daily flows < Qn 60 and = Qn 70 | Maximum volume of water removed per day at daily flows < Qn 70 and = Qn 95 | Maximum volume of water removed per day at daily flows < Qn 95 |
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A1 | 85 % of daily Q n | 80 % of daily Q n | 75 % of daily Q n | 70 % of Q n95 |
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A2 (downstream), B1, B2, C1, D1 | 80 % of daily Q n | 75 % of daily Q n | 70 % of daily Q n | 65 % of Q n95 |
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A2 (headwaters), C2, D2 | 75 % of daily Q n | 70 % of daily Q n | 65 % of daily Q n | 60 % of Q n95 |
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Additions to Table 15 of Part B of Schedule 1 to the 2007 Directions
Table 15(a): Environmental standards for inland loch water levels
permitted percentage change in any day to the loch's total natural daily outflow volume (i) |
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Moderate |
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Column 1 | Column 2 | col 3 | col 4 | col 5 | col 6 | col 7 | col 8 | col 9 | col 10 | col 11 | col 12 | col 13 | col 14 |
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Geology | Altitude | Low | Mid | High |
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Size | Small | Large | Small | Large | Small | Large |
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Basin form | L | V | L | V | L | V | L | V | L | V | L | V |
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Depth 11 | |
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Peat | Shallow or deep | 40 | 40 | 40 | 35 | 40 | 40 | 40 | 35 | 40 | 40 | 40 | 35 |
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Very shallow | 40 | 35 | 35 | 35 | 40 | 35 | 35 | 35 | 40 | 35 | 35 | 35 |
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Low Alkalinity | Shallow or deep | 55 | 50 | 50 | 50 | 55 | 50 | 50 | 50 | 55 | 50 | 50 | 50 |
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Very shallow | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
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Medium Alkalinity | Shallow or deep | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 |
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Very shallow | 45 | 45 | 45 | 40 | 45 | 45 | 45 | 40 | 45 | 45 | 45 | 40 |
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High Alkalinity, Marl | Shallow or deep | 55 | 50 | 50 | 50 | 55 | 50 | 50 | 50 | 55 | 50 | 50 | 50 |
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Very shallow | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
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Brackish | Shallow or deep | 55 | 50 | 50 | 50 | 55 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
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Very shallow | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
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Note to Table 15(a):
- On days where the natural outflow volume is < Q n95, the standards refer to a percentage of the Q n95 outflow volume.
Additions to Table 15 of Part B of Schedule 1 to the 2007 Directions
Table 15(b): Environmental standards for inland loch water levels
permitted percentage change in any day to the loch's total natural daily outflow volume (i) |
|---|
Poor |
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Column 1 | Column 2 | col 3 | col 4 | col 5 | col 6 | col 7 | col 8 | col 9 | col 10 | col 11 | col 12 | col 13 | col 14 |
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Geology | Altitude | Low | Mid | High |
|---|
Size | Small | Large | Small | Large | Small | Large |
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Basin form | L | V | L | V | L | V | L | V | L | V | L | V |
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Depth 12 | |
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Peat | Shallow or deep | 65 | 65 | 65 | 60 | 65 | 65 | 65 | 60 | 65 | 65 | 65 | 60 |
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Very shallow | 65 | 60 | 60 | 60 | 65 | 60 | 60 | 60 | 65 | 60 | 60 | 60 |
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Low Alkalinity | Shallow or deep | 80 | 75 | 75 | 75 | 80 | 75 | 75 | 75 | 80 | 75 | 75 | 75 |
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Very shallow | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 |
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Medium Alkalinity | Shallow or deep | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 |
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Very shallow | 70 | 70 | 70 | 65 | 70 | 70 | 70 | 65 | 70 | 70 | 70 | 65 |
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High Alkalinity, Marl | Shallow or deep | 80 | 75 | 75 | 75 | 80 | 75 | 75 | 75 | 80 | 75 | 75 | 75 |
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Very shallow | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 |
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Brackish | Shallow or deep | 80 | 75 | 75 | 75 | 80 | 75 | 75 | 75 | 75 | 75 | 75 | 75 |
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Very shallow | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 |
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Note to Table 15(b):
- On days where the natural outflow volume is < Q n95, the standards refer to a percentage of the Q n95 outflow volume.
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