Item6Appendix2HRA20200221DET
CAIRNGORMS NATIONAL PARK AUTHORITY Planning Committee Agenda Item 6 Appendix 2 10/12/2021
AGENDA ITEM 6
APPENDIX 2
2020/0221/DET
HABITATS REGULATIONS APPRAISAL
HABITATS REGULATIONS APPRAISAL
Planning reference and proposal information | 2020/0221/DET, Erection of bothy, installation of waste water treatment system and soakaway via perforated pipe, and formation of pedestrian/service access track, land next to River Tromie, approximately 400m south west of Killiehuntly Farmhouse, south of Kingussie |
Appraised by | Nina Caudrey, Planning Officer |
Date | 6 October 2021 |
Checked by | |
Date |
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INFORMATION
European site details | |
Name of European site(s) potentially affected | |
1. | River Spey SAC |
2. | River Spey – Insh Marshes SPA |
3. | River Spey – Insh Marshes Ramsar site |
Qualifying interest(s) | |
1. | River Spey SAC |
Atlantic salmon, fresh water pearl mussel, sea lamprey and otter | |
2. | River Spey – Insh Marshes SPA |
Breeding: osprey, spotted crake, wigeon and wood sandpiper; non-breeding: hen harrier, whooper swan | |
3. | River Spey – Insh Marshes Ramsar site |
Breeding bird assemblage (osprey, spotted crake, wood sandpiper, black headed gull); non-breeding whooper swan; mesotropic loch, flood plain fen, trophic range river/stream |
Conservation objectives for qualifying interests
- River Spey SAC:
Conservation Objective 2. To ensure that the integrity of the River Spey SAC is restored by meeting objectives 2a, 2b, 2c for each qualifying feature (and 2d for freshwater pearl mussel):
2b. Restore the distribution of freshwater pearl mussel throughout the site
2c. Restore the habitats supporting freshwater pearl mussel within the site and availability of food
2d. Restore the distribution and viability of freshwater pearl mussel host species and their supporting habitats
2a. Restore the population of freshwater pearl mussel as a viable component of the site
2b. Maintain the distribution of sea lamprey throughout the site
2c. Maintain the habitats supporting sea lamprey within the site and availability of food
2a. Maintain the population of sea lamprey as a viable component of the site
2b. Restore the distribution of Atlantic salmon throughout the site
2c. Restore the habitats supporting Atlantic salmon within the site and availability of food
2a. Restore the population of Atlantic salmon, including range of genetic types, as a viable component of the site
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2b. Maintain the distribution of otter throughout the site
2c. Maintain the habitats supporting otter within the site and availability of food
2a. Maintain the population of otter as a viable component of the site
Conservation Objective I. To ensure that the qualifying features of the River Spey SAC are in favourable condition and make an appropriate contribution to achieving favourable conservation status
- River Spey – Insh Marshes SPA
To avoid deterioration of the habitats of the qualifying species or significant disturbance to the qualifying species, thus ensuring that the integrity of the site is maintained; and
To ensure for the qualifying species that the following are maintained in the long term:
Population of the species as a viable component of the site
Distribution of the species within site
Distribution and extent of habitats supporting the species
Structure, function and supporting processes of habitats supporting the species
No significant disturbance of the species
- River Spey – Insh Marshes Ramsar site
There are no conservation objectives for Ramsar sites, however it is considered that by meeting the objectives for the overlapping SPA, then the integrity of the Ramsar site would also be conserved. Therefore the assessment of the SPA is deemed a surrogate for assessment of the Ramsar site.
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APPRAISAL | |
STAGE 1: | |
What is the plan or project? | |
Relevant summary details of proposal (including location, timing, methods, etc) | Erection of small residential (holiday let) cabin on a metal framework foundation holding it above the ground (so avoiding the need to dig foundations into the ground), installation of waste water treatment system and soakaway via perforated pipe discharging into the ground and ending at the River Tromie, formation of pedestrian/service access track (partially a surfaced track and partially a boardwalk), on land next to the River Tromie, approximately 400m south west of Killiehuntly Farmhouse, south of Kingussie. The River Tromie is part of the River Spey SAC. The River Tromie also flows into the River Spey – Insh Marshes SPA and Ramsar site. |
The cabin structure parts will be flown by helicopter from the farmhouse to the development site. A small multipurpose tracked vehicle (like a digger) with a Im tracked width will be used for excavations and other construction works. | |
STAGE 2: | |
Is the plan or project directly connected with or necessary for the management of the European site for nature conservation? | |
No. | |
STAGE 3: | |
Is the plan or project (either alone or in-combination with other plans or projects) likely to have a significant effect on the site(s)? | |
1. River Spey SAC | |
Due to the proximity of the construction site to the River Tromie, part of the River Spey SAC, there is potential for sediment exposed during construction works to reach the SAC. Such pollution could negatively affect water quality, reducing oxygen levels and smothering habitats relied on by the qualifying interests and/or their prey species. | |
Otter are a qualifying interest of the River Spey SAC and a mobile species known to be in the vicinity, so although no signs were found during survey work, they may be commuting/foraging along the river at other times of the year. So there is a risk that disturbance to SAC otter could occur during construction and operation of the bothy. | |
Therefore there is potential for a likely significant effect on all qualifying interests through sediment pollution during construction, and additionally through disturbance for otter during construction and operation of the bothy. Further consideration of these effects is therefore required. | |
The waste water treatment system will discharge into the ground via a perforated pipe soakaway, with the pipe ending at the river. Advice from NatureScot (Anne Elliott, email 18 March 2021) is |
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that phosphorous levels are not of concern at this general location. So long as the treatment system and soakaway comply with building regulations, NatureScot advice (Iain Sime, email 21 June 2021) is that such systems should not have a significant effect on freshwater qualifying interests. Therefore there would not be a likely significant effect on any of the qualifying interests from the waste water treatment system. This aspect is therefore not considered further in this assessment.
River Spey – Insh Marshes SPA
River Spey – Insh Marshes Ramsar site
The boundary of the River Spey – Insh Marshes SPA (and Ramsar site) is approximately 3.3km downstream of the proposed development site. While there is physical connectivity via the watercourses, due to the distance providing sufficient dilution and filtering in the event of a very unlikely pollution event, there will not be a likely significant effect on any of the qualifying interests (either directly or on the habitats that they rely on) through pollution. The distance also means that there will be no disturbance of any of the qualifying species. Therefore the SPA and Ramsar site are not considered further in this assessment.
STAGE 4:
Undertake an Appropriate Assessment of the implications for the site(s) in view of the(ir) conservation objectives
Effects on conservation objectives for all qualifying interests due to pollution:
Without appropriate mitigation measures, due to the proximity of construction works to the River Tromie, there is a risk that sediment released during construction could reach the River Tromie, affecting the water quality and smothering the habitats relied upon by the qualifying interests and/or their prey species. For all the qualifying interests, this would cause all of the conservation objectives to be failed due to the potential effects of pollution. However, the implementation of the Construction Method Statement submitted on 6 October 2021 at 1322hrs would reduce the risk of pollution to a minimal level, so that the conservation objective could still be met.
Additional effects on otter during construction:
Disturbance during construction could have a temporary effect on the distribution of commuting/foraging otter, causing conservation objective 2a (maintain the population of otter as a viable component of the site) to fail temporarily. However, when combined with a pre- construction survey (see below) the implementation of the Construction Method Statement submitted on 6 October 2021 at 1322hrs would reduce the risk of disturbance during construction to a minimal level, so that the conservation objective could still be met.
Additional effects on otter during operation:
The footprint of development is small, with number of people using the bothy being limited to 2 guests. In addition, most human activity is likely to occur during daylight hours when otter are resting elsewhere. As a result, foraging otter are unlikely to be disturbed by occupation of the bothy to such an extent that conservation objectives 2a (maintain the population of otter as a
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viable component of the site) or 2b (maintain the distribution of otter throughout the site) would not be met due to operation of the bothy.
However, as otter are a mobile species so may change their use of the area over time, a pre- construction survey will be required to ensure that otter are not using the proposed development site and a 200m area around it for resting or breeding. If resting places or natal holts are found, a species protection plan setting out appropriate mitigation will be required to ensure that conservation objective 2a (maintain the population of otter as a viable component of the site) is not compromised.
In conclusion, subject to a pre-construction otter survey (and species protection plan setting out appropriate measures if necessary) and the implementation of the Construction Method Statement submitted on 6 October 2021 at 1322hrs, all the conservation objectives would be met.
STAGE 5:
Can it be ascertained that there will not be an adverse effect on site integrity?
Provided the following conditions are applied as conditions of planning, then there should not be an adverse effect on site integrity:
1) Condition: A pre-construction survey for otter of the proposed development site and a 200m buffer in line with NatureScot guidance https://www.nature.scot/species-planning- advice-otters is carried out, with the survey results used to inform a species protection plan setting out mitigation measures appropriate to the results, submitted in writing for approval by CNPA prior to any works starting on site.
Reason: to avoid disturbance to otter, a qualifying interest of the River Spey SAC and a European Protected Species.
2) Condition: The Construction Method Statement submitted to CNPA by Alastair Cassell on behalf of the applicant on 6 October 2021 at 1322hrs is implemented.
Reason: to reduce the risk of pollution affecting the River Spey SAC and connected watercourses to a minimal level and to avoid disturbance to otter during construction.
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