Item8Appendix2HRA20190215DET
CAIRNGORMS NATIONAL PARK AUTHORITY Planning Committee Agenda Item 8 Appendix 2 21/02/2020
AGENDA ITEM 8
APPENDIX 2
2019/0215/DET
HABITATS REGULATIONS ASSESSMENT
Habitats Regulations Assessment consultation Draft: 27/01/2020
Demolition of house, erection of 9 houses, formation of access track and path 2019/0215/DET and Erection of three houses (Phase 3) 2019/0245/DET at Boat of Garten
Introduction This is a record of the assessment under regulation 48 of the Conservation (Natural Habitats, &c.) Regulations 1994 (as amended) for the planning applications 2019/0215/DET and 2019/0245/DET made by Peter Smith, Roderick James Architects. The development is of 12 houses, covered by 2 planning applications “Demolition of house, erection of 9 houses, formation of access track and path” and “Erection of three houses (Phase 3)”
The proposal was consulted on in 2019, a re-consultation is now taking place.
An application for a path link has not yet been submitted, but indicative plans have been provided.
Background to the assessment The principal documents which have been taken into account for this assessment are:
• Documents — Proposed Masterplan BSW_3_002, 11/11/19 and Masterplan Phase 3 BSW_3_005, 11/11/19 • Document — Extended Phase I Survey Report, February 2019, John Gallacher, Tilhill Forestry Ltd. • Document — SNH Consultation Response to the initial consultation dated 7th August 2019 (CNS/DC/HI/B&S). • General Method Statement, For the construction of the proposed Boat of Garten Housing Development, Asher Associates, 01.11.19 • Drainage Layout, AA6178/EW/03, 23/1/19 • Environmental Protection Measures, AA6178/EW/04, 1/11/19 • Drainage Impact Assessment, AA6178/8.4/DIA, 30/10/19 • Typical Roadworks Details, AA6178/EW/07, 4/10/19 • SEPA Response Letter, PCS/169185, 24/12/19
Table 1. Stages of Assessment
Stages of Assessment Stage I Decide whether proposal is subject to HRA Stage 2 Identify Natura Sites that should be considered and gather information about the Natura Sites Stage 3 Consultation on the method and scope of the appraisal with SNH and others. Request additional information from applicant if required. Stage 4 Screening the proposal for likely significant effects on Natura sites including mitigation measures included within the proposal Stage 5 Screen for “in combination effects” with other plans or projects Stage 6 Appropriate Assessment to determine effect upon conservation objectives. Preliminary conclusion about adverse effect upon the integrity of any site. Stage 7 Consultation with SNH (and others if considered appropriate) Stage 8 Apply additional mitigation measures, if required, via conditions or agreements to ensure that there is no adverse effect on site integrity Stage 9 Conclusion on Integrity test Stage 10 Regulation 49 derogation procedures. This only applies if adverse effects remain and Competent Authority still wishes to approve the application
Stages 1 – 5 describing the Natura sites and Screening
Stage 1: Deciding whether the proposal is subject to a HRA
The proposed development is not wholly concerned with the necessary management of a European site for nature conservation and requires planning permission and so the plans must be subject to assessment under the terms of Directive 92/43/EEC.
Stages 2: Identification of Natura Sites and gathering their details
The list below is those sites that have been taken forward to screening for likely significant effects. See Appendix I for details on each site and its qualifying features.
Special Areas of Conservation (SAC):
- River Spey SAC (420m SE of the site)
Special Protection Areas (SPA): Boat of Garten woods has a known population of Capercaillie (approximately 2.0 km south of the site), Five Special Protection Areas (SPAs), are designated to safeguard the Strathspey meta- population of Capercaillie:
- Abernethy Forest SPA (1.6km SE of the site)
- Kinveachy Forest SPA (4.3km West)
- Craigmore Wood SPA (7km NE)
- Cairngorms SPA (10km South of the site)
- Anagach Woods SPA (12km NE of the site)
Stage 3: Discussions on the method and scope of the appraisal and requests for additional information A burn borders the site on the west and south, this burn flows into the Milton Loch and from there into the River Spey SAC. Qualifying features of the Spey SAC include: Otter, FWPM, Sea Lamprey, Atlantic Salmon.
Milton Loch is renowned locally for its populations of invertebrates and birds. Any nutrients released from the site would likely become trapped within Milton Loch which is sensitive to any increases in nutrients.
Proposals for the foul water drainage and surface water drainage have been submitted along with a draft Construction Method Statement. An Extended Phase I Habitat Survey was carried out in February 2019. SEPA and SNH have been consulted. Advice as been sought from the Spey Fisheries Board.
An application for a path link has not yet been submitted, but indicative plans have been included within the masterplan docs.
Extended Phase I Habitat Survey (EPIHS): The EPIHS found no signs of otter but it is considered possible that these species may intermittently utilise the site for feeding and/or as a corridor.
Construction Method Statement (CMS): The measures to protect the burn satisfy the requirements of the CAR (Controlled Activities Regulations). (The measures include: silt fence, tree protection fencing which will also keep the works away from the burn, storage/laydown areas kept at least 20m away from the burn, extent of soil stripping minimised, sump trenches). Measures to safeguard otter are included in the CMS (daylight working and measures to reduce risk of entrapment.)
The CMS can be improved by adding in a mention of checks and additional exclusion fencing to the west of the site.
Surface Water drainage design: The design satisfies the requirements of the CAR.
Roof water will be conveyed into rain gardens with a proposed storage volume of 9.0 m³ (per property), in which infiltration will be encouraged. To allow for large storm events overflows will be installed to collect the rain gardens to the filter drain network. The modelling showed that even with a 200 yr storm event plus climate change factored in the discharge to the overflow system should will be 0.
Road water from the adopted section of road will be collected in road gullies and transferred into an adjacent filter drain in which the water will begin to be filtered and soakaway into the ground. During heavy rain fall the water will flow through the filter drain to the bottom of the site and be discharged into the local burn at a reduced discharge rate of 5.0 l/s.
The design proposals for the surface water drainage system can be improved by expanding the details on maintenance.
Foul Water drainage design: To be authorised by SEPA through a simple licence. This has not been issued yet. Septic tank and soakaway proposed, minimal maintenance details provided. For the purposes of this assessment we will take a worst case scenario approach, the design has not been confirmed to safeguard the water quality of the watercourse.
Masterplan docs/location plans: These indicate that the housing development would add 12 new homes to Boat with associated access track and path. The path would be a core path link to Boat of Garten. Trees adjacent to the road would be maintained as a buffer zone. Boat of Garten woods has a known population of Capercaillie (1.5km South of the site).
SEPA response: SEPA advise that ground water investigation monitoring is still required to help determine an acceptable solution to the foul water drainage.
SNH response: SNH have determined that the design of the waste water treatment needs to ensure that neither the water course, nor the River Spey SAC, would be negatively impacted by nutrients or other pollution arising from the septic tank or soakaway. Ideally it would be connected to the public waste water.
SNH have assessed the connectivity between this development site and Boat of Garten woods and concluded that recreational disturbance to capercaillie Boat of Garten Wood will not increase as a result of this proposal.
- The distance between the site and the woodland at Boat of Garten (Deshar Wood) is approximately 1.5km, and longer to get significantly into the wood where the capercaillie are.
- There are closer places to walk, for example the core path between Milton Farm and Drumullie, Milton Loch, and the riverside path.
- The development of 12 houses is small in terms of the overall population of Boat of Garten.
Stage 4: Screening the proposal for likely significant effects
The effects identified are discussed in Table 3.
Table 3. Screening for Housing development at Boat of Garten. River Spey SAC
Qualifying | Possible effect | Likely significant | Duration | Screening assessment | Screening outcome |
---|---|---|---|---|---|
Feature | of development | effect | |||
Affected | |||||
Otter | There is the potential | Reduced water quality | Potentially permanent | The impact of any enrichment would decrease further downstream as the dilution factor increased. Any impacts would be mostly felt in the burn itself and Milton loch. Otter use many food sources and would be likely to adapt if there were changes over time to the nature of the burn. The development could however change the foraging behaviour of otter which may affect their distribution. | Likely significant effect |
for increased nutrients | (increased nutrients such as | but intermittent | |||
to the watercourse in | phosphorous) in the long | ||||
the longer term from | term can impact the | ||||
the septic tank and | distribution and variety of | ||||
soakaway. This design | prey. Potential loss of | ||||
has not yet received a | foraging habitat. | ||||
simple licence from | |||||
SEPA. | |||||
Atlantic Salmon | Reduced water quality and | Reduced water quality and | Potentially permanent | Salmon were not found during 2017 SFB survey work between the burn d/s of the site and the Spey. Habitat in the burn is not suitable to support salmon (given width). The impact of any enrichment would not be likely to directly affect salmon in the Spey where the dilution factor is large and salmon are mobile. | No likely significant effect |
oxygen levels can negatively | oxygen levels can negatively | but intermittent | |||
impact egg survival | impact egg survival | ||||
rates, embryo health and hatching. | rates, embryo health and hatching. | ||||
The nature of the | The nature of the | ||||
watercourse can be changed | watercourse can be changed | ||||
with the addition of | with the addition of | ||||
nutrients in the long term, | nutrients in the long term, | ||||
reducing habitat quality and | reducing habitat quality and | ||||
suitability for salmon. | suitability for salmon. |
|Sea Lamprey|Reduced water quality and |Reduced water quality and|Potentially permanent|Sea lamprey are not known to use the burn. (Juvenile brook lamprey were found in 2017 between the burn d/s of the site and the Spey. The impact of any enrichment would not be likely to directly affect Sea lamprey in the Spey where the dilution factor is large and lamprey are mobile.|No likely significant effect| | |oxygen levels can negatively |oxygen levels can negatively |but intermittent | | | | |impact egg survival|impact egg survival| | | | | |rates/larvae. |rates/larvae. | | | | | |The nature of the|The nature of the| | | | | |watercourse can be changed |watercourse can be changed | | | | | |with the addition of |with the addition of | | | | | |nutrients in the long term, |nutrients in the long term, | | | | | |reducing habitat quality and|reducing habitat quality and| | | | | |suitability for lamprey.|suitability for lamprey.| | | | |Freshwater |FWPM require coarse sand |FWPM require coarse sand |Potentially permanent|The WQ in the Spey is not likely to decrease significantly as a direct result of the development, however there is a local population of FWPM in the vicinity and vulnerable to any incremental increase in nutrients. FWPM are not very mobile/cannot adapt quickly to changes in WQ. In a low flow scenario pollution entering the Spey may impact these.|Likely significant effect.| |Pearl Mussel|and fine gravel in clean, |and fine gravel in clean, |but intermittent | | | | |oligotrophic, fast-flowing |oligotrophic, fast-flowing| | | | | |and unpolluted rivers and |and unpolluted rivers and | | | | | |streams. |streams. | | | | | |The nature of the|The nature of the| | | | | |watercourse can be changed |watercourse can be changed | | | | | |with the addition of |with the addition of | | | | | |nutrients in the long term, |nutrients in the long term, | | | | | |reducing habitat quality and|reducing habitat quality and| | | | | |suitability for freshwater |suitability for freshwater| | | | | |pearl mussel.|pearl mussel.| | | | |Otter |Silt entering the burn|Suspended silt can impact|Temporary reduction |The burn is small, any sediment reaching this receptor is likely to have an impact on water visibility. However the effects from construction would be short term and otter are mobile and able to find better foraging if necessary. Sediment entering the burn is likely to settle out in Milton Loch. No additional sediment is|No likely significant effect.| | |during construction. |the visibility of water, |in visibility during| | | | | |negatively impacting the |construction. | | | | | |ease with which otter can | | | | | | |forage. | | | | | | |Silt deposition on gravels|Smothered gravels | | | | | |may reduce the quality of|can have a longer | | | |Atlantic Salmon| |habitat for some prey.|term effect on prey. |Salmon were not found during 2017 SFB survey work between the burn d/s of the site and the Spey. Habitat in the burn is not suitable to support salmon (given width). Sediment entering the burn is likely to settle out in Milton Loch. No additional sediment is likely to enter the Spey SAC.|No likely significant effect| | | |Silted substrate is not |Long term impact.| | | | | |suitable for salmon| | | | | | |spawning, it cannot support | | | | | | |eggs or newly hatched| | | | | | |alevins which are dependant| | | | | | |on clean, well oxygenated | | | | | | |gravels. | | | | |Sea Lamprey||Silted substrate is not | |Sea lamprey are not known to use the burn. (Juvenile brook lamprey were found in 2017 between the burn d/s of the site and the Spey. Sediment entering the burn is likely to settle out in Milton Loch. No additional sediment is likely to enter the Spey SAC.|No likely significant effect| | | |suitable for lamprey| | | | | | |spawning, it cannot support | | | | | | |eggs or larvae which are| | | | | | |dependent on well | | | | | | |oxygenated gravels.| | | | |Freshwater | |Silted substrate is not| |FWPM are not known to use the burn. There is a local population of FWPM d/s of Milton Loch on the Spey. Sediment entering the burn is likely to settle out in Milton Loch. No additional sediment is likely to enter the Spey SAC.|No likely significant effect| |Pearl Mussel| |suitable for FWPM, it cannot | | | | | | |support adults or juveniles | | | | | | |which are dependant on | | | | | | |well oxygenated gravels.| | | | |Otter |Disturbance and/or |Disturbance to foraging due |Temporary, during |It is likely that otter use the burn for foraging/commuting. They may use the area adjacent to the burn for resting or foraging. The active construction site would pose a risk to otter that may venture onto the site.|Likely significant effect| | |physical harm during|to construction activity |construction only| | | | |construction|taking place and/or lighting | | | | | | |used at night time.|| | | | | |Trapping or injury. Should| | | | | | |pits, tunnels or piping be left| | | | | | |open overnight; otters that| | | | | | |wander onto the site could | | | |
| | |become trapped or injured.| |There could be increased recreational disturbance from, residents on the path and new foot bridge. This will be mainly during the day when otter are less active and will be low numbers. Path does not run adjacent to the river and so disturbance area is limited to bridging point.|No likely significant effect| | |Increased recreational |Disturbance leading to|Permanent||| | |disturbance |displacement | | | | |Abernethy Forest SPA|Qualifying |Possible effect|Likely significant|Duration|Screening assessment|Screening| ||Feature|of development|effect|||outcome| |Osprey|(Pandion |Nutrients from the|Reduced variety/abundance|Permanent|It is likely that Osprey find the neighbouring Spey River more appealing for hunting. Unlikely that there is a dependency on Milton Loch.|No Likely significant effect| |haliaetus) |development being|of food (fish) available in||| | |deposited in Milton|Milton Loch for osprey.||| | |Loch.|Osprey use the|||| | |general area and may|||| | |use Milton loch for|||| | |feeding.|||| | |No impacts to the|||| | |habitats at Abernethy|||| | |that support Osprey.|||| |Scottish | |The site does not|The proposal would have no|||| |crossbill (Loxia|provide suitable|effect, either direct or|||| |scotica)|habitat for Scottish|indirect.|||| | |crossbill and no impact|||| | |to the habitats at|||| | |Abernethy that|||| | |support Scottish|||| | |crossbill.|||| |Capercaillie|(Tetrao|The application is for|Strathspey metapopulation|Permanent.|The distance between the site and the woodland at Boat of Garten (Deshar Wood) is approximately (depending on the route taken) 1.5km, and longer to get significantly into the wood. There are closer places to walk, for example the core path between Milton Farm and Drumullie, Milton Loch, and the riverside path. The development of 12 houses is small in terms of the overall population of Boat of Garten. For these reasons it is concluded that this development at this location is not likely to lead to any meaningful additional disturbance of capercaillie over and above the existing use of the wood. There is no anticipated effect on capercaillie in the wood, so there would be no significant effect on the SPAs notified for capercaillie.|No likely significant effect| |urogallus)|12 houses and includes|would be adversely affected|||| | |a proposal to create a|if the population in Boat|||| | |path between the|Woods experiences an|||| | |development and the|increase in disturbance from|||| | |village, bringing more|recreation due to|||| | |people within closer|population increase at Boat|||| | |range of an existing|of Garten village.|||| | |population in Boat|||| | |Woods. Capercaillie|||| | |(red conservation|||| | |status) are highly|||| | |vulnerable.|||| |Kinveachy Forest SPA|Qualifying|Possible effect|Likely significant|Duration|Screening assessment|Screening| ||Feature|of development|effect|||outcome| | |Affected|||||| |Capercaillie|(Tetrao|The application is for|Strathspey metapopulation|Permanent.|The distance between the site and the woodland at Boat of Garten (Deshar Wood) is approximately (depending on the route taken) 1.5km, and longer to get significantly into the wood. There are closer places to walk, for example the core path between Milton Farm and Drumullie, Milton Loch, and the riverside path. The development of 12 houses is small in terms of the overall population of Boat of Garten. For these reasons it is concluded that this development at this location is not likely to lead to any meaningful additional disturbance of capercaillie over and above the existing use of the wood. There is no anticipated effect on capercaillie in the wood, so there would be no significant effect on the SPAs notified for capercaillie.|No likely significant effect.| |urogallus)|12 houses and includes|would be adversely affected|||| | |a proposal to create a|if the population in Boat|||| | |path between the|Woods experiences an|||| | |development and the|increase in disturbance from|||| | |village, bringing more|recreation due to|||| | |people within closer|population increase at Boat|||| | |range of an existing|of Garten village.|||| | |population in Boat|||| | |Woods. Capercaillie|||| | |(red conservation|||| | |status) are highly|||| | |vulnerable.|||| |Scottish | |The site does not|The proposal would have no|||| |crossbill (Loxia|provide suitable|effect, either direct or|||| |scotica)|habitat for Scottish|indirect.|||| | |crossbill and no impact|||| | |to the habitats at|||| | |Kinveachy that|||| | |support Scottish|||| | |crossbill.||||
Craigmore Wood SPA|Qualifying|Possible effect|Likely significant|Duration|Screening assessment|Screening| ||Feature|of development|effect|||outcome| | |Affected|||||| |Capercaillie|(Tetrao|The application is for|Strathspey metapopulation|Permanent.|The distance between the site and the woodland at Boat of Garten (Deshar Wood) is approximately (depending on the route taken) 1.5km, and longer to get significantly into the wood. There are closer places to walk, for example the core path between Milton Farm and Drumullie, Milton Loch, and the riverside path. The development of 12 houses is small in terms of the overall population of Boat of Garten. For these reasons it is concluded that this development at this location is not likely to lead to any meaningful additional disturbance of capercaillie over and above the existing use of the wood. There is no anticipated effect on capercaillie in the wood, so there would be no significant effect on the SPAs notified for capercaillie.|No likely significant effect.| |urogallus)|12 houses and includes|adversely affected if the|||| | |a proposal to create a|population in Boat Woods|||| | |path between the|experiences an increase in|||| | |development and the|disturbance from recreation|||| | |village, bringing more|due to population increase|||| | |people within closer|at Boat of Garten village.|||| | |range of an existing|||| | |population in Boat|||| | |Woods. Capercaillie|||| | |(red conservation|||| | |status) are highly|||| | |vulnerable.||||
Cairngorms SPA|Qualifying|Possible effect|Likely significant|Duration|Screening assessment|Screening| ||Feature|of development|effect|||outcome| ||Affected|||||| |Scottish | |The site does not|The proposal would have no|||| |crossbill (Loxia|provide suitable|effect, either direct or|||| |scotica)|habitat for Scottish|indirect.|||| | |crossbill and no impact|||| | |to the habitats in|||| | |Cairngorms SPA.|||| |Dotterel|(Charadrius|The site does not|The proposal would have no|||| |morinellus)|provide suitable|effect, either direct or|||| | |habitat for Dotteral|indirect.|||| | |and the development|||| | |will not impact|||| | |habitats in Cairngorms|||| | |SPA.|||| |Golden eagle|(Aquila|The site does not|The proposal would have no|||| |chrysaetos)|provide suitable|effect, either direct or|||| | |habitat for Golden|indirect.|||| | |Eagle and the|||| | |development will not|||| | |impact habitats in|||| | |Cairngorms SPA.|||| |Peregrine|(Falco|The site does not|The proposal would have no|||| |peregrinus)|provide suitable|effect, either direct or|||| | |habitat for peregrine.|indirect.|||| | |The development will|||| | |not impact habitats in|||| | |Cairngorms SPA.|||| |Osprey|(Pandion|Nutrients from the|Reduced variety/abundance|Permanent|It is likely that Osprey find the neighbouring Spey River more appealing for hunting. Unlikely that there is a dependency on Milton Loch. |No Likely significant effect| |haliaetus)|development being|of food (fish) available in|||| | |deposited in Milton|Milton Loch for osprey.|||| | |Loch.|Osprey use the|||| | |general area and may|||| | |use Milton loch for|||| | |feeding.|||| | |No impacts to the|||| | |habitats at Cairngorms|||| | |SPA that support|||| | |Osprey.|||| |Merlin (Falco|Red conservation|The proposal would have no|||| |columbarius)|status. Merlin may use|effect, either direct or|||| | |the Boat area in||||
| |summer.|indirect.|||| | |The development will|||| | |not impact breeding|||| | |birds (potential prey).|||| | |The development will|||| | |not impact habitats in|||| | |Cairngorms SPA.|||| |Capercaillie|(Tetrao|The application is for|Strathspey metapopulation|Permanent|The distance between the site and the woodland at Boat of Garten (Deshar Wood) is approximately (depending on the route taken) 1.5km, and longer to get significantly into the wood. There are closer places to walk, for example the core path between Milton Farm and Drumullie, Milton Loch, and the riverside path. The development of 12 houses is small in terms of the overall population of Boat of Garten. For these reasons it is concluded that this development at this location is not likely to lead to any meaningful additional disturbance of capercaillie over and above the existing use of the wood. There is no anticipated effect on capercaillie in the wood, so there would be no significant effect on the SPAs notified for capercaillie.|No likely significant effect.| |urogallus)|12 houses and includes|adversely affected if the||| | |a proposal to create a|population in Boat Woods|||| | |path between the|experiences an increase in|||| | |development and the|disturbance from recreation|||| | |village, bringing more|due to population increase|||| | |people within closer|at Boat of Garten village.|||| | |range of an existing|||| | |population in Boat|||| | |Woods. Capercaillie|||| | |(red conservation|||| | |status) are highly|||| | |vulnerable.||||
Anagach Woods SPA|Qualifying|Possible effect|Likely significant|Duration|Screening assessment|Screening| ||Feature|of development|effect|||outcome| ||Affected|||||| |Capercaillie|(Tetrao|The application is for|Strathspey metapopulation|Permanent.|The distance between the site and the woodland at Boat of Garten (Deshar Wood) is approximately (depending on the route taken) 1.5km, and longer to get significantly into the wood. There are closer places to walk, for example the core path between Milton Farm and Drumullie, Milton Loch, and the riverside path. The development of 12 houses is small in terms of the overall population of Boat of Garten. For these reasons it is concluded that this development at this location is not likely to lead to any meaningful additional disturbance of capercaillie over and above the existing use of the wood. There is no anticipated effect on capercaillie in the wood, so there would be no significant effect on the SPAs notified for capercaillie.|No likely significant effect.| |urogallus)|12 houses and includes|adversely affected if the||| | |a proposal to create a|population in Boat Woods|||| | |path between the|experiences an increase in|||| | |development and the|disturbance from recreation|||| | |village, bringing more|due to population increase|||| | |people within closer|at Boat of Garten village.|||| | |range of an existing|||| | |population in Boat|||| | |Woods.||||
Stage 5: In-combination effects
There is a risk of an incremental reduction of WQ in the Spey over time due to diffuse pollution if developments with insufficient foul water drainage arrangements are built in the Spey Catchment but we are not aware at this time of any other developments in the area with the potential to increase the nutrient load of the Spey.
(The waste water treatment works at Boat of Garten have upgraded capacity in the last few years, the water quality of the Spey is thought to have improved in this time.)
There are no Minor Residual Effects (Likely Insignificant Effects) identified during screening or through the Appropriate Assessment therefore there will be no in combination effects.
Stages 6 – 10 Assessment and Conclusions
Stage 6: Appropriate Assessment
The proposals have been screened in Stages 4 and 5. It was found that for one Natura site there were likely significant effects upon the qualifying interests. Consequently the following appropriate