Bolsover Cruise Club, Barlborough

Transcription

Phase 1 Geo-Environmental Assessment Report
Bolsover Cruise
Club, Barlborough
for
Tour Construction Ltd
i
Contents
1
Introduction........................................................................................................1
1.1 Context and Scope of work .................................................................................................... 1
1.2 Limitations.............................................................................................................................. 1
2
The Site .............................................................................................................. 3
2.1 Location ................................................................................................................................. 3
2.2 Site Description ..................................................................................................................... 3
2.3 Proposed Development ......................................................................................................... 5
3
Historical Search................................................................................................ 6
3.1 Landmark Historical Map Database .................................................................................... 6
4
Geology & Mining ............................................................................................. 10
4.1 Geology................................................................................................................................. 10
4.2 Soil Chemistry ..................................................................................................................... 10
4.3 Mining ................................................................................................................................... 11
4.4 Radon ....................................................................................................................................12
5
Hydrogeology and Water Resources..................................................................13
5.1 Groundwater Vulnerability ..................................................................................................13
5.2 Surface Water Vulnerability ................................................................................................13
6
Environmental Database Review .......................................................................14
7
Regulatory Authority Enquiries and Responses ................................................16
7.1 Bolsover District Council .....................................................................................................16
7.2 Environment Agency............................................................................................................16
8
Preliminary Conceptual Site Model ................................................................... 17
8.1 Potential Sources of Contamination ................................................................................... 17
8.2 Receptors of Contamination and Migration Pathways ......................................................19
8.3 Potential Pollutant Linkages .............................................................................................. 20
9
Preliminary Environmental Assessment .......................................................... 22
10
Preliminary Geotechnical Considerations ........................................................ 24
10.1 Existing Features with Geotechnical Impacts ................................................................... 24
10.2 Foundations ......................................................................................................................... 25
10.3 Construction ........................................................................................................................ 25
10.4 Floor Slab Design ................................................................................................................ 25
10.5 Road/Car Park Pavements ................................................................................................. 25
10.6 Soakaways ............................................................................................................................ 26
K-NC567_LVN | August 2013
Opus International Consultants (UK) Ltd
ii
11
Ecology ............................................................................................................. 27
11.1 Desk Study ........................................................................................................................... 27
11.2 Preliminary Ecological Assessment ................................................................................... 29
12
Archaeology ......................................................................................................31
12.1 Archaeological Review .........................................................................................................31
12.2 Preliminary Archaeological Assessment.............................................................................31
13
Recommended Further Works ......................................................................... 32
Drawings
Site Location Plan
Plan of Existing Site Features
NC_K-NC567/400
Figure 1
Appendices
Appendix A
Appendix B
Appendix C
Appendix D
Appendix E
Appendix F
Plan of Proposed Development
Landmark Envirocheck Report, including Historical Maps
Coal Authority Report
Ecological Records
Statutory Sites of Nature Conservation Value Plan (MAGIC)
Enquiries to Local Authorities
1
1
Introduction
1.1
Context and Scope of work
1.1.1
This report describes a Phase 1 Geo-environmental Desk Study undertaken on behalf of
Tour Construction Ltd at property owned by Michael Wilson Properties and located to the
west of Lindrick Way, Barlborough. An instruction to carry out the works was received on
9th July 2013 via email.
1.1.2
This report refers to two plots of land separated by a plot of land between the two which is
owned by an external party. It is understood that Tour Construction Ltd has commissioned
this report to inform the feasibility of proposals for both sites. The proposal for the western
plot comprises a car park and light industrial units. The Bolsover Cruise Club is situated
towards the centre of the eastern plot and the proposals for this site are to construct a new
car park to the south of the Club buildings and also to construct an extension to the east of
the existing buildings.
1.1.3
Opus International Consultants (UK) Limited (Opus) has compiled an investigation brief in
conjunction with Tour Construction (The Client). This brief was formalised in an e-mail
dated 5th July 2013.
1.1.4
The objectives of the desk study were to make preliminary assessments of the likely
geotechnical, environmental, ecological and archaeological constraints which may be
encountered and affect the redevelopment of the site, on the basis of the historical and
current land use of the site and its environs.
1.1.5
The report is based upon archival research and an inspection of the site undertaken on 23rd
July 2013. It includes a historical search and assessment of likely ground conditions which
has been undertaken with reference to the Local Authority, Coal Authority, British
Geological Survey, the Environment Agency and a Landmark Envirocheck environmental
database report. In addition, a review of web-based information has been undertaken
which includes the Derbyshire Historic Environment Record and the Heritage Gateway
database in relation to archaeology and of records from the local Biological Records Centre
at Derbyshire Wildlife Trust, MAGIC and the National Biodiversity Network (NBN)
Gateway Database in relation to ecology.
1.1.6
Researches have also been undertaken to determine the environmental sensitivity of any
receptor which could be perceived to be at risk from migration of contaminants from the
site.
1.2
Limitations
1.2.1
This report has been produced on behalf of the Client, Tour Construction Ltd, and no
responsibility is accepted to any Third Party for all or any part. This report should not be
relied upon or transferred to any other parties without the express written authorisation of
Opus. If any unauthorised Third Party comes into possession of this report, they rely on it
at their own risk and the authors owe them no duty of care or skill. Opus disclaims any
responsibility to the Client and others in respect of any matters outside the scope of the
above Contract.
2
1.2.2
This report has been prepared by Opus with all reasonable skill and care within the terms of
the Contract with the Client, and taking account of the information made available by the
Client, as well as the manpower and resources devoted to it by agreement with the Client.
1.2.3
The findings and opinions conveyed via this report are based on information obtained from
a variety of sources as detailed within this report, which Opus believe are reliable.
Nevertheless, Opus cannot and does not guarantee the authenticity or reliability of the
information it has relied upon. The findings of this study should be regarded as preliminary
to be confirmed or otherwise by further surveys including intrusive site investigation works.
1.2.4
The plans enclosed in this report should not be used for scaling purposes.
3
2
The Site
2.1
Location
2.1.1
For the purpose of this report the site are divided into two separate parcels of land
(hereafter referred to as the Eastern and Western sub-sites) which together are
approximately 0.4 hectares in plan area and located to the west of Lindrick Way in
Barlborough, Chesterfield within a commercial estate. A site location plan is provided in
the Drawings section of this report presented as Drawing No. NC_K-NC567/400. The site
is centred on approximate Ordnance Survey Grid Reference 447860E 376240N.
2.1.2
At the time of the site reconnaissance, vehicular and pedestrian access could be gained via
Lindrick Way. The western sub-site was within a locked heras fenced compound. The
eastern sub-site, adjacent to the existing Bolsover Cruise Club building was open to the
public, the main access being from the existing club car park to the west of the Cruise Club
building.
2.2 Site Description
2.2.1
A site reconnaissance was carried out by an Engineering Geologist from Opus who was
initially accompanied by Jon Biggin of Tour Construction on 23rd July 2013. The reader is
referred to the site features plan (Figure 1) enclosed in the drawings section which indicates
the main site features. Selected photographs of the site are also enclosed as Plate Nos. P1 to
P12 inclusive. Each of the sub-sites will now be discussed in turn.
Eastern Sub-Site
2.2.2 The eastern sub-site can be defined as a rectangular band of grassed area extending across
the full width of the plot associated with the Bolsover Cruise Club and directly to the south
of the existing Cruise Club building. It then extends northwards across the southwestern
portion of the existing Cruise Club asphalt hardstanding car park immediately to the west of
the existing building. In total the eastern site is approximately 0.18ha in plan area.
2.2.3 The whole site and immediate surrounding area is relatively flat with a slight slope to the
north (<5 degrees). There was also a local shallow dip down towards the footpath adjacent
to the eastern site boundary. The site is bordered to the south by a hedge, beyond which is a
tarmacked car park and an electrical substation. To the east, the site is bound by a low
timber fence and low shrub/bush with a footpath and road beyond. The road is a low
volume local road serving the commercial estate. North of the site is the rear of the existing
two to three storey high brick Bolsover Cruise Club Building, with associated air
conditioning units. To the west, the site is bound by a low timber fence with low
shrub/bush, beyond which is an asphalt covered car park.
Western Sub-Site
2.2.4 The western sub-site can be defined as roughly rectangular in shape, however its western
most boundary is a little curved. In total the western site is approximately 0.22ha in plan
area.
4
2.2.5 The top layer of ground towards the site boundaries has largely been scrapped towards the
boundaries to construct gypsy bunds. However there was a remaining grassed area in the
north of the site, becoming patchy grass further south until approximately midway along the
site. Amongst the patchy grass are pieces of brick and concrete.
2.2.6 At the time of the walkover there was a moderate sized portacabin towards the southern end
of the site with a concrete footpath around it on its southern, northern and eastern sides.
Jon Biggin noted that this portacabin is owned by Waystone who were reported as the
construction company that built many of the other buildings and car parks in the vicinity.
This portacabin likely served as Waystone’s construction site office. The cabin is connected
to mains electricity and therefore no generator was likely needed for the cabin itself. There
is also a foul water connection leading to the public sewer to the north west of the site.
2.2.7 As noted previously the site is bound by heras fencing. Immediately to the north, west and
south of the portacabin and where the surface material had not been scrapped off, the
surface comprised predominantly bitumen covered gravel, brick and concrete, underlain by
sheet cloth. This appears to be fairly shallow (<100mm thick) and overlain directly onto
natural soils/ bedrock material. The area west and south of the portacabin appears to have
been used for storage of scrap with numerous bits of metal, plastic, rubber, concrete, brick
and aggregate, tarmac, timber and shale scattered across the area. Some patches of tall
grass were present towards the south western corner of the site.
2.2.8 A bonfire site was located towards the western side boundary and opposite the portacabin.
Part of the bonfire site was surrounded by stacked breeze blocks. Within the charcoaled
material, pieces of paper, metal, concrete, plastic and timber were visible.
2.2.9 Against the southern boundary of the site were some stacked building supplies and scrap
pieces of wire, timber, plastic and rubber tubing. A piece insulation board (possible
asbestos) was noted in this area. Also against the southern and south eastern site boundary
the surface material had been scrapped towards the boundary and natural shale bedrock
with very thin sub horizontal bedding exposed adjacent to the southern site boundary. A
piece of possible asbestos cement was noted against the eastern site boundary.
2.2.10 Jon Biggin noted that he had dug a number of test pits across the site and encountered
bedrock between 1.0m and 1.2m below ground level.
2.2.11 Across the site are angular boulders of fine grained mudstone which Jon Biggin noted may
have been extracted from the ground works for the adjacent commercial estate buildings.
2.2.12 Immediately to the west of the site the ground slopes westwards by approximately 15
degrees to an elongated pond about 8m below the site. The whole area around the pond
comprises tall grass with scattered patches of mainly Hawthorne trees, gorse and
blackberry. To the west and immediately north of the site is a relatively level asphalt
covered car park associated with the adjacent ‘Carillion’ two storey brick office building. A
storm drain for the car park is present just beyond the northern boundary of the site. To the
south of the site the area is covered with tall grass and scattered patches of trees as noted
above. The ground here slopes gently (10 degrees) northwards towards the site boundary.
5
2.3 Proposed Development
2.3.1
A plan of the proposed development layout was provided by the Client. A copy of the
proposed layout plan is provided in Appendix A.
2.3.2 The proposals for development of the eastern sub-site comprises extending the area of
hardstanding southwards over an area which is currently grassed and constructing an
extension to the west of the existing Bolsover Cruise Club Building.
2.3.3 The proposals for development of the western sub-site comprises removing the existing
portacabin and constructing hardstanding and a number of light industrial units across the
site.
6
3
Historical Search
3.1
Landmark Historical Map Database
3.1.1
The history of the site is recorded over selected periods by the maps inspected, copies of
which are supplied in Appendix B
3.1.2
A summary of the site history is tabulated below. For ease of reference the search was
undertaken encompassing both sites within one search envelope. Therefore the central
portion of the envelope is not directly associated with the two sites under investigation. It
does not have any bearing on the information provided below.
Date
Features on the Site
Features Around the Site
• The site comprises of fields
mostly.
• The site is surrounded mostly by fields, with an
area of rough pasture and deciduous trees
indicated immediately to the west of the site.
• Two coal pits and a Brick and Tile yard are shown
approximately 250m east of the site, with a
further coal pit and old quarry shown just beyond
this.
• 450m to the south east of the site is ‘Barlborough
colliery’ with a lime kiln and a few old and active
quarries just beyond this.
• A railway line branch is shown running between
the Brick and Tile Yard and the Colliery. It then
joins on to a main east-west trending line
approximately 650m south of the site.
• A further Brick and Tile yard is shown 600m west
of the site, with Woodhouse Lane colliery beyond
this.
• The town of Barlbrough is shown from about
900m north west of the site.
• Wells are shown in the vicinity surrounding the
site, the closest being 200m north west of the site.
• A stream is shown running parallel to the western
site boundary about 50m west of the site.
• A small structure named the
‘Parsons Folly’ is shown
within the western part of
the site, towards the centre.
1882 –
1884
1875 – 1877
1:2,500
scale only
1898
1:2,500
scale only
1899
• Towards the western site
boundary and beyond, the
map shows an area of rough
pasture
with
some
deciduous woodland.
• The site has remained
unchanged
from
the
previous map.
unchanged
from
the
previous map, apart from
the trees and rough pasture
which are no longer being
shown within the site
boundary.
unchanged
from
the
previous map.
• An embankment is shown trending south east north west approximately 100m south west of the
site
• An old mine shaft is labelled 200m to the east of
the site.
• The site is still surrounded mostly by fields, with
an area of rough pasture indicated immediately to
the west of the site.
• There has been further development of
Barlbrough Colliery, including an extension of the
railway shown as being ‘in construction’ on the
map (this is the embankment noted from the
1898 map)
This extension runs from the
Barlborough colliery to the north west, through
the Brickworks situated 600m west of the site.
7
Date
• Further mine shafts are labelled to the east of the
site, the closest being 200m from the site as
noted in the 1898 map)..
• A new hamlet called ‘New Barlborough’ is shown
800m east of the site and to the north of Clowne.
1916 - 1923
1:2,500
scale only
1923
unchanged
from
the
previous map.
unchanged
from
the
previous map apart from the
folly structure not being
shown. The label for the
folly is still shown.
unchanged
from
the
previous map.
1938 - 1950
1947
(southern
west area
only)
unchanged
from
the
previous map.
unchanged
from
the
previous map.
1955 - 1956
1961 – 1962
• A path is shown passing
through the south western
corner of the site.
• The brickworks and associated buildings
previously 250m east of the site are no longer
marked. There is however still evidence of
workings in the area.
• The railway extension passing close by the site
now appears to be commissioned.
• A small orchard is now shown 180m south of the
site on the south side of the railway extension.
• The well previously 200m north west of the site is
no longer shown.
an area of rough pasture and deciduous trees
indicated immediately to the west of the site.
• The brickworks 600m west of the site is now
shown as ‘disused’.
• A sewage works is now shown 500m north of the
site.
• There is further development around New
Barlborough.
an area of rough pasture and deciduous trees
indicated immediately to the west of the site
(1938 map).
• The area surrounding the site has remained
largely unchanged since the previous map.
• Some further development of Barlborough is
shown, largely to the south of the town (1950
map).
Barlborough.
• The surrounding area has remained largely
unchanged from the previous map.
• The orchard previously 150m south of the site
now appears to be shown as a non-coniferous
woodland.
• The brickworks previously 600m west of the site
is no longer marked. There is however still
evidence of workings in the area.
• Barlborough Colliery is now marked as ‘disused’.
Barlborough.
• The former brickworks 250m east of the site is
now shown as a lake or pond.
8
Date
1:2,500
scale only
• Some trees are shown across
the western part of the site.
1967
• The site still comprises
fields. The folly is no longer
shown or labelled.
1969 – 1971
1:2,500
scale only
unchanged
from
the
previous map.
unchanged
from
the
previous map.
1973
1977
1:2,500
scale only
1983
1990 – 1991
1:2,500
scale only
1993
1:2,500
scale only
1994
1:2,500
scale only
1995
1:2,500
unchanged
from
the
previous map.
• A main road (motorway) running roughly northsouth is now shown about 850m west of the site.
• The refuse heap 500m south east of the site is
shown as disused.
• The remaining former Barlborough colliery
buildings are now shown as ‘Works’
unchanged
from
the
previous map.
• Open cast workings are shown 220m south east
of the site immediately north of the east west
dismantled railway line.
unchanged
from
the
previous map.
• New roading is indicated to be in the process of
development approximately 160m west of the
site.
• The opencast workings previously labelled 200m
north of the site are no longer shown.
• The area of roading approximately 160m west of
the site has developed further.
• The western part of the dismantled railway is now
not shown approximately 100m south west of the
site.
• The town of Barlborough has extended to the
south, the main residential area now being 150m
north of the site at its closest point. Between the
site and the residential area some other buildings
are shown.
• A golf course is shown directly to the south east of
the site.
• A lake or pond is shown 30m to the west of the
site where the stream previously passed.
• A large depot is shown 200m south west of the
site and a factory is shown west of this.
unchanged
from
the
previous map.
• A building is now shown
against the eastern site
boundary, likely to be the
current Bolsover Cruise Club
building.
• The trees previously near the western site
boundary are no longer shown.
• The former Barlborough Colliery is now shown as
a refuse or slag heap.
• Further development in the southern part of
Barlborough along Chesterfield road is shown.
• The railway extension that passed 100m to the
south west of the site is now shown as
dismantled.
unchanged
from
the
previous map.
• The path previously through
the site is no longer shown.
scale only
2006
• Open cast workings are labelled 200m north of
the site.
9
Date
• Two further structures are
now shown within the
western site area.
2013
• The dismantled railway extension previously
passing 100m south west of the site is now largely
not shown. The closest part of the line is now
shown approximately 650m from the site.
• The east-west trending railway 650m south of the
site is now marked as disused.
• The sewage works previously 500m north of the
site is no longer shown.
• New Barlborough has developed further north
west of the site.
• The disused refuse heap previously 500m south
east of the site is no longer shown.
• The building immediately north of the site is now
shown as a hospital.
• Further buildings are shown immediately to the
south and south east of the site and between the
eastern and western sub-sites.
• The buildings 400m west of the site, previously
marked as a factory are now shown as a Business
Park.
10
4
Geology & Mining
4.1
Geology
4.1.1
Reference to the 1:50,000 scale geological maps enclosed within the Landmark Envirocheck
Report in Appendix B and the British Geological Survey (BGS) website indicates that the site
is likely to be directly underlain by the solid geology of the Pennine Middle Coal Measures
Formation (Mudstone, Siltstone and Sandstone). A linear feature (coal seam) running
parallel to and along the eastern site boundary is shown on the Envirocheck map.
4.1.2
Due to the proximity of the coal seam shown on the Envirocheck report we have also
reviewed a more detailed 1:10,000 scale geological map of the area. This map shows that
the coal seam named ‘Clowne’ is located between the eastern and western sites and trends
(strikes) in a north - south direction.
4.1.3
The Pennine Middle Coal Measures Formation is described as typically comprising grey
mudstone or siltstone interbedded with pale grey sandstone and coal seams. The thickness
of the coal seams can vary between <0.25 and 2.5m thick. Some marine fossil-bearing
mudstones are present at intervals.
4.1.4
No significant drift deposits (>2m thick) are indicated on the Envirocheck report and the
1:50,000 scale BGS map. References related to artificial deposits are noted below. No
significant quantity of drift deposits are located within 200m of the site.
4.1.5
No areas of Made Ground or artificial deposits are indicated on the Envirocheck Report
within the site boundary however the 1:10,000 scale map shows the site is within an area of
Infilled Ground described as ‘Partly or wholly backfilled opencast workings for coal’.
4.1.6 A fault is shown on the 1:10,000 scale map and in part in the Envirocheck Report. The
1:10,000 scale map shows the fault is present very close to the eastern site boundary and
downthrown to the northeast.
4.2 Soil Chemistry
4.2.1
The Landmark Envirocheck report contains details of the British Geological Survey (BGS)
estimated soil chemistry for the site and surrounding area. The BGS holds substantial
datasets for arsenic, cadmium, chromium, nickel, and lead in soil samples for parts of the
UK and stream sediments for most of the UK. These geochemical data have been used to
derive geospatial data sets that identify the estimated concentrations of As, Cd, Cr, Ni and
Pb (mg kg-1) in soils.
11
4.2.2 According to the Landmark Envirocheck report the following concentrations of metals are
estimated to be present in the soils in the general vicinity of the site:
Determinand
Estimated Concentration (mg/kg)
Arsenic (As)
<15
Cadmium (Cd)
<1.8
Chromium (Cr)
60 – 90
Lead (Pb)
<150
Nickel (Ni)
15 - 30
4.3 Mining
4.3.1
Barlborough, Chesterfield is listed in The Coal Authority Coal Mining and Brine Subsidence
Claims Gazetteer for England and Wales as requiring a Coal Mining Report. A report has
been obtained and is attached as Appendix C. The salient points are summarised below:
•
•
•
•
•
•
•
•
•
•
•
•
The site is in the likely zone of influence from past underground coal workings. The
report indicates there were 4 seams of coal which had coal workings at 110m and 450m
below ground level and these were last mined in 1988. The report notes that all
settlement associated with these mines should have ceased at the time of writing this
report;
In addition the report indicates that coal may be at shallow depth below the ground
surface and therefore this coal may have been worked in the past;
The site is not in the likely zone of influence of any present underground coal workings;
The site is not in an area for which the Coal Authority is determining whether to grant a
licence or where a licence has been granted to remove coal using underground methods;
The site is not in an area that is likely to be affected at the surface from any planned
future workings. However reserves of coal exist in the local area which could be worked
at some time in the future;
There are no known coal mine entries within 20 meters of the boundary of the site;
The Authority is not aware of any evidence of damage arising due to geological faults or
lines of weakness that have been affected by coal mining;
The property is within the boundary of an open cast site from which coal has been
removed by opencast methods;
The site is not within the boundary or within 200 meters of a site where coal is currently
being removed by opencast methods;
The Authority has not received a damage notice or claim for the subject property within
50m of the site since 31st October 1994;
There is no record of a mine gas emission requiring action by the Coal Authority within
the boundary of the site;
The report states at the end that ‘a prudent developer would seek appropriate technical
advice before any works are undertaken’ and this likely refers to the residual risk of
unrecorded shallow mine workings.
12
4.3.2 A review of the separate Coal Mining Risk Areas and Coal Mining Legacy Plans accessible
through the Coal Authority Website has also been made and shows the site is within a
‘Referral Area’ and an area of past and current shallow coal mine workings. A referral area
is defined as ‘an area with the potential for instability or a degree of risk from the legacy of
coal mining operations’.
4.3.3 The Envirocheck Report references a H J Banks and Co Ltd within the contemporary trade
directory which is classified as ‘Coal Mining’ and is 34m north east of the site and noted as
being inactive.
4.4 Radon
4.4.1
According to the Envirocheck Report and the Building Research Establishment (BRE)
Report BR211 entitled ‘Radon: Guidance on protective measures for new buildings’, 2007,
the site is just on the boundary between an area where no radon protection measures and
where basic radon protection measures are required within new properties and extensions
at this site. It is recommended that the requirement be confirmed with a site specific radon
report which can be obtained from the British Geological Survey.
13
5
Hydrogeology and Water Resources
5.1
Groundwater Vulnerability
5.1.1
Reference to the Envirocheck Report (included in Appendix B) indicates that the site is
underlain by a Secondary A Aquifer (formerly known as a Minor Aquifer) assumed to be
associated with the solid geology of the Pennine Middle Coal Measures Formation.
5.1.2
Secondary A Aquifers are described as formations of variable permeability which seldom
produce large quantities of water for abstraction; however, they remain important for both
local supply and providing base flow to rivers.
5.1.3
According to the Envirocheck Report, the site is not indicated to be located within a
Groundwater Source Protection Zone.
5.1.4
There are no recorded licensed groundwater abstractions located within 500m of the site.
There are three licenses located 584m east of the site where the operator, Golfco Leisure
Limited and Waystone Limited, are licenced to abstract groundwater for spray irrigation.
There are a further two licenses located 799m east of the site where the operator is
Waystone Limited for the same purpose.
5.2 Surface Water Vulnerability
5.2.1
According to the Envirocheck Report, the nearest surface water feature to the site is located
19m north west of the site which appears to relate to a pond as shown on the 2013 1:10,000
map enclosed with the Envirocheck Report.
5.2.2 The Envirocheck Report indicates that there is a river quality record for Barlborough Brook
33m NW of the site. This seems to coincide with the location of the pond noted above which
is shown to be fed by a watercourse from the north (watercourse appears to be culverted
beneath the residential area for 200m) and drains to a watercourse to the south. This
record was from 2000 and records the river as being River Quality Grade C (Fairly Good).
The same Brook has another river quality record related to it, 437m south of the site. This
record is also from 2000 and the River Quality Grade is C.
5.2.3 There are no recorded licensed surface water abstractions within 1km of the site.
5.2.4 The site is not indicated to be situated within an Environment Agency indicative flood plain.
14
6
Environmental Database Review
6.1
Specific details relating to the environmental setting of the site are presented within the
Landmark Envirocheck Report included as Appendix B. The Envirocheck Report comprises
a database of information obtained from a variety of sources including the Environment
Agency, BGS and the Centre for Ecology and Hydrology. The salient issues which relate to
the site are summarised as follows, unless covered in previous sections of this report.
6.2
There is one historical landfill and one registered landfill recorded within 1km of the site as
summarised in the following table;
Type
Licence Holder
Location
Historical Landfill Site
Hargreaves Clearwaste
Ltd
(Closed 1990)
&
Distance
Direction
&
Specified Waste
224m west
Inert, industrial, commercial and
household waste
645m west
Various includes construction,
domestic, commercial, paint
waste, slag etc
Chesterfield Road,
Barlborough
Registered Landfill Site
Biffa
(Closed)
Chesterfield Road,
Barlborough
6.3
There are no licenced waste management facilities, registered waste transfer sites or
registered waste treatment or disposal sites within 1km of the site.
6.4
There are two recorded discharge consents located within 250m of the site, at 69m south
west of the site and 238m north west. The former relates to the discharge of trade
discharges (contaminated surface water – non waste sites) by Waystone Limited to the
Barlborough Brook. The latter relates to the discharge of trade Discharge (treated effluent)
by British Coal Opencast to a tributary of Barlborough Brook.
6.5
There are no recorded pollution incidents to controlled waters recorded within 500m of the
site. The closest relates to an incident in 1998 at A616 Island Junction 30, M1
approximately 776m north west of the site which involved sulphuric acid and was classified
as a Category 3 - minor incident.
6.6
There are no Local Authority Pollution Prevention and Controls within 250m of the site.
The closest authorisation is located approximately 493m west of the site and relates to
Arnold Swift Levick Magnets Ltd which is closed. There are no Integrated Pollution
Controls, Integrated Pollution Prevention and Controls or Local Authority Integrated
Pollution Prevention and Control enforcements within 1km of the site.
6.7
There are no prosecutions relating to the pollution of controlled waters or authorised
processes within 1km of the site.
6.8
There are no recorded explosive sites located within 1km of the site.
6.9
There are seven contemporary trade directory entries within 250m of the site, as
summarised in the following table;
15
Name
Classification
Status
Distance
Direction
H J Banks & Co
Coal Mining
Inactive
34m NE
Quadro
Screen process printers
Active
116m SE
C D E (Ireland)
Plant engineering
Inactive
123m W
Ptc Alliance UK
Steel Manufacturers
Active
142m W
Allan Scott
Pest and Vermin Control
Active
166m NE
Corilla Plastics Ltd
Plastic Product Manufacturers
Inactive
183m W
Georges Speciality
Chutneys
Food Product Manufacturers
Active
230m NE
&
6.10
There are no fuel station entries located within 1km of the site.
6.11
There are no environmentally sensitive areas such as Local or National Nature Reserves,
Sites of Special Scientific Interest or Special Protection Areas or Special Conservation Areas
recorded within 1km of the site.
16
7
Regulatory Authority Enquiries and Responses
7.1
Bolsover District Council
7.1.1
Enquiries were made to the Environmental Health and Planning Departments of Bolsover
District Council and to BCN Consultancy Building Control to ascertain the environmental
sensitivity of the site. A copy of one of the enquiry letters and the responses received to date
are included in Appendix F of this report. The main points are summarised below;
•
•
•
•
•
•
The Building Control Consultancy have declined to provide any information regarding
the site for commercial reasons. Should a Building Regulations application for the
relevant works be submitted to Building Control they have noted they will then make
available any relevant information they have in regards to the site;
The Planning Department has indicated that prior to the development of the site for
‘employment uses’ the area was part of an opencast mine. It indicates that ‘the land was
restored with a view to the [current] development’. The letter also recommends
contacting the Coal Authority as the site falls within a ‘Coal Mining Referral Area’;
The Planning Department states that there are no Tree Preservation Orders (TPOs) at
the site nor are any currently proposed;
The Planning Department indicates that the site is within a ‘key employment site’. The
land to the west of the site is shown as ‘an important open area’;
The Environmental Health Department states that they are ‘unaware of any significant
pollution issues from the site’ at present and as such has not classified any site or any
areas of land on or adjacent to the site as ‘contaminated land’ under the provision of
Part IIA of the Environmental Protection Act 1990, as no determinations have been
made yet. However the department have indicated that these registers are still under
development;
The Environmental Health Department states the site is within a former coal mining
area and about 245m from an old coal pit. No other specific information is provided in
regards to coal mining; however they have indicated the possibility of landfilling and
colliery spoil in the vicinity of redundant collieries in general.
7.2
Environment Agency
7.2.1
An enquiry was made to the Environment Agency to ascertain the environmental sensitivity
of the site. A copy of the enquiry letter is provided in Appendix F. A response had not been
received at the time of issuing this report. A summary of the response will be provided as an
addendum to this report as soon as it is received.
17
8
Preliminary Conceptual Site Model
8.1
Potential Sources of Contamination
8.1.1
The following potential on site sources of ground contamination have been identified:
Eastern Sub-Site
•
•
•
•
Importation of Made Ground to the site from a contaminated source in order to raise
site levels or backfill areas of possible opencast mining including metals, polynuclear
aromatic hydrocarbons (PAHs), petroleum hydrocarbons and asbestos;
Potential contamination associated within any waste construction materials placed at
the site from nearby developments such as asphalt;
Ground gases generated by any biodegradable organic material (if present) within the
natural ground beneath the site or from any organic deposits or organic materials within
any buried waste or Made Ground used within earthworks across the site. Potential
ground gases include methane (flammable and asphyxiant) and carbon dioxide
(asphyxiant);
Ground gases generated by coal at shallow depth beneath the site. Potential ground
gases include methane (flammable and asphyxiant), carbon dioxide (asphyxiant) and
carbon monoxide.
Western Sub- Site
•
•
•
•
•
•
Importation of Made Ground to the site from a contaminated source in order to raise
site levels or backfill areas of possible opencast mining including metals, PAHs,
petroleum hydrocarbons and asbestos;
Potential contamination associated within any waste construction materials placed at
the site from nearby developments such as asphalt;
Contamination associated with the demolition of any former structures present on the
site as evidenced by metal pads which may have formed footings to a previous building,
(if done in an uncontrolled manner), including metals, PAHs and asbestos;
Potential contamination from the area used as a bonfire observed in south western
corner of the site including PAHs from ash and clinker materials;
Ground gases generated by any biodegradable organic material (if present) within the
natural ground beneath the site or from any organic deposits or organic materials within
any buried waste or Made Ground used within earthworks across the site. Potential
ground gases include methane (flammable and asphyxiant) and carbon dioxide
(asphyxiant);
Ground gases generated by coal at shallow depth beneath the site. Potential ground
gases include methane (flammable and asphyxiant), carbon dioxide (asphyxiant) and
carbon monoxide.
8.1.2 The following potential off site sources of ground contamination have been identified:
•
PCB’s, PAH’s and TPH’s from electrical substation immediately against the southern
boundary of the eastern site. This electrical substation is likely to have been installed at
the time of the industrial estate construction and therefore PCB’s are unlikely to be
associated with this substation;
18
•
•
Potential migration of mobile contaminants such as hydrocarbons, together with other
chemicals such as pesticides and herbicides from the railway formerly located
approximately 100m south west of the sites;
Potential migration of ground gases generated by biodegradable material within the
potentially infilled ponds located approximately 30m west of the sites. In addition there
is the potential for the migration of ground gases from any organic deposits or organic
materials within any buried waste or Made Ground used during the historic earthworks
associated with the former brickworks 250m east and 600m west of the sites and from
the disused refuse heap 500m south east of the site. Potential ground gases include
methane (flammable and asphyxiant) and carbon dioxide (asphyxiant).
8.1.3
The site was developed prior to the introduction (and implementation) of the Control of
Pollution Act 1974. This legislation introduced a requirement for land to be licensed for the
disposal of waste, prior to which there were limited controls on the placement of waste
materials on land. Consequently, the potential exists for soil imported to site to raise
ground levels to have originated from a contaminated source. Potential contaminants may
therefore include heavy metals, PAHs, petroleum hydrocarbons and asbestos.
8.1.4
Reference to DoE ‘Industry Profile for Railway Land’ indicates that railway land is a
potentially contaminative land use. In some areas, ash ballast possibly containing metals,
phenols, sulphates and PAHs may be found in siding complexes or embankments. Fuel oils,
lubricating oils, grease and PCBs may have caused localised contamination where
locomotives have been stood, for example at siding and track and immediate trackside
margins may be subject to the accumulation of herbicides. There may also be
contamination in sidings resulting from spillages of the cargoes and general contamination
of the site may occur through wind dispersal of airborne contaminants such as coal dust
from open wagons. Asbestos may also be present on railway land from discarded insulation
on locomotives, etc.
8.1.5
Made Ground can under certain conditions where organic material is present, give rise to
the production of flammable and noxious gases caused by the biological decomposition of
organic material. Where waste material has been deposited on land, this gas is often
referred to as landfill gas. Landfill gas from actively decomposing waste disposal sites
typically comprises approximately two-thirds methane and one-third carbon dioxide.
Methane is flammable in air at concentrations of between 5% and 15% by volume. Carbon
dioxide and methane are both asphyxiants. These gases present a hazard to a development
if allowed to enter and accumulate in unventilated areas of buildings such as commercial
properties or garages.
8.1.6 During transformation of organic substances to become coal, methane and carbon dioxide
are created. These can be stored within cracks, crevices and pores. When the coal is mined
or disturbed, the gases can be released. If a coal mine is disused the gas may continue to be
emitted due to the drop in gas pressure.
19
8.2 Receptors of Contamination and Migration Pathways
8.2.1 Receptors are defined as human beings, ecological systems, property or controlled waters
that have the potential to experience adverse effects from direct or indirect exposure to
contaminated material.
8.2.2 Migration pathways are defined as the courses chemicals take from a source to an exposed
organism or receptor. The exposure pathway can be direct (i.e. stays within the same
exposure media) or indirect transport from one medium to another takes place.
8.2.3 The following potential human health, property and environmental receptors have been
identified assuming the proposed future redevelopment for use as commercial premises and
car park:
•
•
•
•
•
•
Future end users (occupants and visitors of the new commercial units);
Plants grown in soft landscaped areas of offices or plants.
Site construction and maintenance workers;
Groundwater associated with the underlying Secondary A Aquifer;
Surface water associated with the ponded water 19m west of the site;
Building materials.
Commercial End Use
8.2.4 The following potential migration pathways have been identified assuming the proposed
future use as commercial premises with soft landscaped areas:
Inhalation
Human health can potentially be at risk from breathing dust and vapours from
contaminated soil in the outdoor air and also the inhalation of fugitive dust inside buildings.
Vapours from contaminated soil and groundwater can also migrate into buildings and be
inhaled by the occupants.
Ingestion
Human health can potentially be at risk from eating and swallowing of contaminated soil.
Ingestion can also occur by deliberately eating contaminated soil or indirectly by eating or
smoking with dirty hands etc., or by ingestion of fugitive dust;
Dermal Contact
Human health can be potentially at risk from direct skin contact with contaminated soil and
groundwater causing skin conditions such as dermatitis etc. and also dermal contact with
fugitive dust inside buildings. Certain contaminants can be absorbed into the body through
the skin or enter directly through open cuts and abrasions;
Uptake by Plants
Some contaminants may be toxic to plants (phytotoxic) but not necessarily to human health
at the same concentrations. Plant growth can also be adversely affected by ground gases;
20
Leaching
Infiltration of water through soil can leach out soluble contaminants resulting in
groundwater pollution;
Migration of Contaminated Water
Depending on the permeability of ground conditions and any other man-made voids or
preferential pathways, contaminated groundwater can potentially migrate laterally or
vertically impacting adjacent surface and groundwater;
Migration of Ground Gas
Ground gases or volatile hydrocarbon vapours may migrate laterally or vertically through
permeable or voided ground and accumulate within unprotected buildings.
Aggressive Attack
Some buildings and materials can be damaged by direct contact with aggressive ground
condition, for example sulphate attack on concrete and hydrocarbon attack on plastics.
8.3 Potential Pollutant Linkages
Commercial End Use
8.3.1
The following potential pollutant linkages have been identified, assuming the proposed
future end use of the site as commercial end use with soft landscaped areas:
Source
Contaminated soil
Pathway
Receptor
Ingestion
Future occupants
Dermal contact
Construction workers
Inhalation (outdoor air)
Contaminated soil
Inhalation (indoor air)
Future occupants
Contaminated soil
Root uptake
Plants in soft landscaped areas
Contaminated soil
Leaching
Groundwater – Secondary B
Aquifer
Contaminated soil
Aggressive attack
Building materials
Plastic water mains
Contaminated groundwater
Ingestion
Dermal contact
Inhalation (outdoor air)
21
Source
Pathway
Receptor
Inhalation (indoor air)
Future occupants
Lateral and vertical migration
Groundwater – Secondary B
Aquifer
Surface water –ponded water
approximately 30m west of the site
Aggressive attack
Building materials
Plastic water mains
Ground gases
8.3.2
Generation, migration,
accumulation inside properties
Future occupants
Exposure during earthwork
The term potential pollutant linkage as used above is defined as one that has the
potential to represent unacceptable risks to human health or the environment but has not
been identified through risk assessment. Where a potential pollutant linkage has been
identified above, further investigation and risk assessment may be required to establish
whether a relevant pollutant linkage exists.
22
9
Preliminary Environmental Assessment
9.1
The western sub-site currently comprises a roughly rectangular area of land with a patchy
grass and gravel surface. A portacabin is present in the southern end of the site and a
former bonfire site was identified towards the western site boundary. Evidence of other
temporary structures having previously been on the site in the form of metal pads/footings
were also present. Immediately to the west of the site, the ground slopes westwards by
approximately 15 degrees to a large pond. Around the pond are some patches of Hawthorn
trees, gorse and blackberry.
9.2
The eastern sub-site currently comprises a tarmacked car park and a relatively flat grassed
area adjacent to the Bolsover Cruise Club building.
9.3
The proposed development of the western sub-site comprises a car park and light industrial
units. The proposed development for the eastern sub-site is an extension of the Bolsover
Cruise Club building and associated car park.
9.4
From the review of historical maps, it appears that the site remained largely unchanged
from the earliest map until the 2006 map, comprising of an open fielded area. A folly was
indicated on the western sub-site until the 1967 map. From the 2006 map a building was
shown against the eastern site boundary, likely the existing ‘Bolsover Cruise Club’. A
further two buildings were shown from the 2013 map towards the south of the western site.
9.5
The review of the historical maps showed that previously the surrounding area comprised
open fields with coal pits and brick yards in the vicinity, the closest being approximately
250m east of the site and Barlborough Colliery approximately 500m south east of the site.
These were all largely disused by the 1956 map, and shown as either ponds or infilled areas
after this time. The former Barlborough Colliery was shown as a refuse or slag heap from
the 1967 map and became disused by the 1973 map. A railway to service this industry was
shown from the earliest map until the 1973 map and at its closest point was 100m away
from the site. A stream running parallel to the western site boundary was shown from the
1875 map along which the existing pond was formed in 2006 and is present to date
approximately 40m west of the site. The town of Barlborough to the north west and Clowne
to the south east have grown over time, with New Barlborough appearing from the 1898
map. Opencast workings are shown approximately 200m north of the site between the 1991
and 1994 maps. Overburden from opencast workings would likely not have been put back
in the location it came from and may have been deposited elsewhere in the area. By the
2006 map the residential area of Barlborough extended to become 150m north of the site at
its closest point with other commercial buildings shown around the site.
9.6
The published geology indicates that the site is likely to be directly underlain by the solid
geology of the Pennine Middle Coal Measures Formation. No drift deposits were indicated
to overlie the site. The site is indicated to be classified by the Environment Agency as a
Secondary A Aquifer (formally known as a Minor Aquifer) associated with the Pennine
Middle Coal Measures Formation. The site is not located in a Groundwater Source
Protection Zone and there are no licensed groundwater abstractions within 500m of the
site, the closest being for spray irrigation 584m from the site. The closest surface water
feature is recorded as being 19m north west of the site which seems to correspond with a
pond. There are no surface water abstractions within 1km of the site.
23
9.7
Given the Secondary A Aquifer status of the underlying groundwater and the proximity to
environmental receptors and licensed abstractions, the environmental sensitivity of the site
is therefore considered to be moderate.
9.8
Potential on-site sources of ground contamination for both sites include importation of
made ground to the site from a potentially contaminated source to raise levels, storage of
waste construction materials from nearby developments, ground gases from biodegradable
organic material within the natural ground beneath the site or organic materials within
buried waste, ground gases generated by coal at shallow depth. Potential contaminants at
both sites therefore include metals, polynuclear aromatic hydrocarbons (PAHs), petroleum
hydrocarbons, asbestos, plus methane, carbon monoxide and carbon dioxide ground gas
9.9
Additional potential sources of on-site contamination in the western site include
contamination from demolition of former structures on the site and contamination from the
bonfire site observed on the western sub-site. The potential contaminants from these
sources are the same however, to those noted in section 9.8. Suspected asbestos was also
encountered on the western sub-site.
9.10
On site sources of contamination are likely to be more significant than off site sources.
Potentially the most significant off-site sources of contamination for both sites are
considered to be from nearby disposal of overburden from the open cast mining. The
electrical substation is unlikely to be significant given the recent installation of the station
which suggests no PCBs will be present and the station should be in relatively good
condition. The railway which was previously 100m from the site is likely too far from the
site to be a significant source of contamination. The landfill previously 200m west of the
site may be a source of contamination, however the topography between the site and the
landfill i.e. a valley, makes it unlikely that contaminants would migrate to the be within the
site boundary.
9.11
Given the proposed commercial development of the site, the main potential human
receptors of ground contamination therefore include future occupants of the new
commercial premises and construction workers. Other receptors include plants grown
within soft landscaped areas, together with building materials and controlled waters.
Potential exposure pathways include ingestion and direct contact with contaminated soil in
any proposed soft landscaped areas and the inhalation of particulates in outdoor air. The
potential also exists for the ingress of methane, carbon monoxide and carbon dioxide
ground gases and accumulation in unventilated areas of the properties, if potentially
biodegradable organic material is encountered within any Made Ground beneath the site
and also associated with the coal that could be at shallow depth below the site. No radon
protection measures are required at the site.
9.12
Potential environmental receptors of ground contamination include the ponded water to
the west of the site and to a limited extent the underlying groundwater which is classified as
a Secondary A Aquifer (formerly known as a Minor Aquifer).
9.13
Given that potential sources of chemical contamination have been identified, together with
plausible migration pathways and receptors, it is recommended that a Phase 2 intrusive
investigation is carried out to identify whether relevant pollutant linkages exist.
24
10 Preliminary Geotechnical Considerations
10.1 Existing Features with Geotechnical Impacts
10.1.1 From review of the coal mining data sets and geological information available for this desk
study there is some significant risk posed by the potential presence of historical shallow
mine workings or infilled opencast mine workings in the area. The Coal Authority’s Risk
Map indicates that the site is within a referral area. Taking this into account, it is likely that
a Coal Mining Risk Assessment will be required to be undertaken for this site and it is highly
recommended that the Coal Authority be consulted in regards to the intended development
of the site. It is also recommended that a targeted Phase 2 intrusive investigation of the site
be conducted to investigate the possibility of any voids or made ground associated with coal
mining being present beneath the site.
10.1.2 With regards to the above, the details of the ‘restoration’ of the previous open cast coal
mine, which is indicated at the site, for employment as noted in the response from the
Planning Department of the Bolsover District Council should be sought to determine if it
has adequately addressed the significant risk identified.
10.1.3 Both sites were relatively flat. However immediately to the west of the western sub-site, the
ground slopes down towards the west by approximately 15 degrees until it levels out around
a pond approximately 8m below the site. No signs of significant instability were observed.
The slope is likely to be natural as the earliest historical maps show an area or rough pasture
across the sloped area and a stream is shown running at the base of the slope, where the
pond is located currently. Due to the proximity of this 8m high slope to the proposed
development it is recommended that a preliminary analysis of the slope be undertaken
during a Phase 2 intrusive investigation of the site to review the implications of the
development on the stability of the slope.
10.1.4 Weather conditions during the site walkover were dry and overcast. The preceding days and
weeks had seen hot and dry conditions and therefore conditions on site in wetter months
may vary in regards to surface water and groundwater levels.
10.1.5 It is anticipated, subject to an intrusive investigation, that the site will be underlain by Made
Ground materials and siltstone, sandstone and mudstone of the Pennine Middle Coal
Measures Formation. The following discussion is therefore provisional and subject to
confirmation by a Phase 2 intrusive ground investigation.
10.1.6 BGS borehole information from the vicinity of the site, obtained from the BGS website, has
been reviewed and indicates the geology is as follows: 1.0m to 2.6m clay over Highly
Weathered to Moderately Weathered Mudstone.
10.1.7 As discussed in the Site Description, Jon Biggin noted that he had dug a number of test pits
across the site and encountered bedrock between 1.0m and 1.2m below ground level. In
addition, during the site walkover, where the surface material had again been scrapped
towards the southern site boundary natural shale bedrock was exposed with very thin sub
horizontal bedding. This appears to tie in with the information from BGS.
25
10.2 Foundations
10.2.1 Based on the anticipated ground conditions and assuming the absence of shallow mine
workings or unrecorded mine entries, it is considered that traditional strip / trench fill
foundations may be a viable option, cast within the undisturbed underlying sandstone,
siltstone and mudstone of the Pennine Middle Coal Measures Formation at a minimum
depth of 0.3m into the mudstones.
10.2.2 An allowable bearing capacity of the order of 250KN/m2 is deemed appropriate for
preliminary foundation design purposes based on the very weak mudstone strata; however,
this should to be confirmed by the Phase 2 investigation works.
10.2.3 The high likelihood of pyritic rich lenses or patches within the Pennine Middle Coal
Measures Formation should be taken into account in regards to the Sulphate Classification
of the soil and the implications on concrete works within these soils.
10.2.4 Trees and shrubs can extend the depth affected by seasonal moisture variation and advice
on this is given in the National House Building Council (NHBC) Standards Chapter 4.2,
“Building near trees”. It is unlikely that existing trees on site will be deemed close enough to
this site to require deepening of foundations however it should be considered as part of the
final foundation designs. Properties constructed within the influencing distance of trees
and shrubs in cohesive soils may require the deepening of foundations, potentially in excess
of 2.50m.
10.3 Construction
10.3.1 It is anticipated that the short term stability of excavations within cohesive natural strata
should be reasonable. However, it is likely that shallow bedrock will be encountered
throughout the site. The material is likely to be weak and highly fractured however some
stronger bands of siltstone, mudstone or sandstone may also be encountered. The near
horizontal nature of the beds may also make excavation difficult and therefore ripping may
be required. It should therefore be anticipated that excavation for underground facilities etc
may be difficult. All trench excavations should be carried out in accordance with CIRIA
Report 97 ‘Trenching Practice’.
10.4 Floor Slab Design
10.4.1 From a geotechnical perspective, it is recommended that suspended floor slabs be used due
to the possibility of depths of Made Ground greater than 600mm. The findings from any gas
monitoring at the site undertaken during a Phase 2 ground investigation could also
potentially dictate that suspended floor slabs and a passively ventilated sub-floor void may
be necessary.
10.5 Road/Car Park Pavements
10.5.1 An anticipated CBR value of the order of 3% can be assumed for the design of roads and
hard standings founded on weathered clays, with higher values exceeding 5% where
sandstone, siltstone and mudstone are encountered. The actual CBRs should be confirmed
by in-situ testing at road formation level.
26
10.5.2 The sub-grade maybe frost susceptible within the superficial clays, therefore the minimum
construction depth of the road construction should be 0.45m.
10.6 Soakaways
10.6.1 Based on the expected geology, it is anticipated that soakaways are unlikely to be a feasible
method of drainage over the majority of the site due to the predicted low permeability of any
clays and the shallow level of the bedrock. Should it be required, the viability of soakaways
should be confirmed by in situ soakaway testing in accordance with BRE Digest 365
‘Soakaway Design’.
27
11 Ecology
11.1 Desk Study
11.1.1 Information available on the baseline ecology of the site and its surroundings has been
obtained from the local Biological Records Centre at Derbyshire Wildlife Trust and the
National Biodiversity Network (NBN) Gateway viewed online and presented in Appendix D.
Recent records held from 1990 to date have been reviewed.
11.1.2 Positions of species identified in the data received from the Derbyshire Wildlife Trust must
be treated as strictly confidential. ‘This information must only be made available to parties
with a bona fide interest in it’.
11.1.3 Habitat classification data has been downloaded from the Multi-Agency Geographic
Information Centre (MAGIC) and is included within Appendix E.
11.1.4 The above data sources have been reviewed and the character and nature conservation value
of habitats and species at and in the vicinity of the site assessed. The aims of this appraisal
of information are:
•
•
•
To characterise the existing available information regarding habitats and species that
may be present at the site and provide up to date information about the ecological
characteristics of the site area;
To identify any habitats potentially present of nature conservation value in terms of
local, regional and national context and within the context of local, regional and
national policy;
To identify any areas of ecological interest in order to identify the need for further
survey work and the scope of these works.
11.1.5 The data obtained from MAGIC indicates that there are no Statutory Sites or sites of local
ecological significance lying on or within 1km of the site. The closest site of nature
conservation concern is shown to be located approximately 2.4km northeast of the site,
namely Crab Tree Wood, a Site of Special Scientific Interest (SSSI). The data obtained from
the local Biological Records Centre, however, indicates that there is a Local Wildlife Site
named Balborough Railway located approximately 20m west of the site which is described
as a habitat mosaic and contains Biodiversity Action Plan (BAP) habitat including reedbed.
11.1.6 Further Local Wildlife Sites and potential Local Wildlife Sites are located approximately
650m southeast and 830m west of the site associated with a dismantled railway and a
disused quarry. A Local Wildlife Site which is described as Ancient Semi-natural Woodland
is located approximately 920m southwest and a further potential Local Wildlife site is
situated approximately 890m northeast of the site. Areas described as ‘Other Recorded
Sites of Interest’ are shown to be located at Broughton Washland and Clowne Spoil Marsh
which are located approximately 190m and 220m southeast of the site respectively. Clowne
Cemetery, an additional ‘Other Recorded Site of Interest’, is located approximately 470m
east of the site.
28
11.1.7 The data viewed from the local Biological Records Centre indicates that there are two
records attributed to the immediate site area which relate to reptiles i.e. grass snake (Natrix
natrix) and UK BAP Species of bird, however, these records are dated before 2000 and the
site appears to have been developed since this date as inferred from historic aerial
photographs viewed online. In addition, the location of this record is described as
Balborough Links and the grid reference is only given as 8 digits indicating a 10m x 10m
area and therefore these records could relate to an area which is not necessarily specifically
attributed to the site under consideration.
11.1.8 The data from the local Biological Records Centre shows that there are records for water
vole (Arvicola amphibius), great crested newt (Triturus cristatus), reptiles namely grass
snake and UK BAP bird species and habitats including reedbed in the vicinity of the site.
These records appear to be associated with the Local Wildlife Site located to the immediate
west of the site. The site under consideration is situated approximately 490m from a pond
where great crested newt have been recorded.
11.1.9 There is one record for bats i.e. Pipistrellus spp. located 800m northwest of the site. There
are four records for UK BAP butterfly species located within 1km of the site, however, the
closest is associated with Broughton Washland approximately 190m south of the site. There
is also a record for reptiles namely grass snake at this location. In addition, there are recent
records for Nationally Threatened, Nationally Scare and Locally Scarce or Declining Plant
Species within the 1km of the site and these relate to records for Common Cudweed (Filago
vulgaris), Jacob’s-ladder (Polemonium caeruleum), Dyer’s Greenweed (Genista anglica)
and Green Hellebore (Helleborus viridis).
11.1.10 NBN indicates that there are recent records of protected species within the vicinity of the
site including great crested newt, grass snake and water vole as previously highlighted from
the information obtained from the Biological Records Centre.
11.1.11 The NBN Gateway also shows that there are recent records for white clawed crayfish
(Austropotamobius pallipes), otter (Lutra lutra), bats (Chiroptera) including Pipistrellus
spp., Whiskered bat (Myotis mystacinus) and Daubenton’s bat (Myotis Daubentonii) and
reptiles namely common lizard (Zootoca vivipara) and adder (Vipera berus) in the region
(10km square). There are no records for badger (Meles meles) within the 10km square that
the site is situated in.
11.1.12 Reference to Bolsover District Council’s website indicates that the Balborough Conservation
Area is situated approximately 885m north of the site. The Local Authority has stated that
there are no Tree Preservation Orders (TPOs) associated with the site.
29
11.2 Preliminary Ecological Assessment
11.2.1 The site is situated in a developed area and is predominately surrounded by an industrial
estate. There are no recent records of protected species attributed to the site under
consideration i.e. since the site has been developed. There are no high priority habitats on
site or within the immediate vicinity, however, a Local Wildlife Site is situated
approximately 20m west of the site which extends to the south and has links to the wider
countryside. A large pond and associated stream are located in the Local Wildlife Site
approximately 30m from the site under consideration at its closest point although this is
likely to fluctuate depending on water levels in the pond. There are records of protected
species which relate to this Local Wildlife Site including grass snake and water vole which
are protected under the Wildlife and Countryside Act, 1981 (as amended) and great crested
newt, protected under Conservation of Habitats and Species Regulations, 2010 making this
a European Protected Species.
11.2.2 The western sub-site is predominately covered in gravel and hardstanding and the majority
of the soft landscaped areas appear to have been scrapped to form soil bunds along some of
the site boundaries leaving bare ground or sparsely vegetated ground cover. A small area of
grassland is present in the northern part of the western sub-site comprising rough grassland
and is approximately 20m x 30m. There is also grassland in the southern part of the eastern
sub-site comprising short mown amenity grassland. These grassland areas are considered
to offer limited cover and foraging to fauna such as reptiles or great crested newt and the
site does not provide any significant vegetated features which could act as migration
corridors to other potential wildlife sites.
11.2.3 The significant lighting and evening disturbance associated with industrial estates is not
ideal for certain species, particularly larger mammals such as badger and it anticipated that
these species are unlikely to utilise the site.
11.2.4 The vegetation and water features associated with the Local Wildlife Site to the west provide
potential foraging for smaller mammals such as bats. Bat species are known to be present
within the locality and could therefore potentially be present in the existing buildings at the
site. It is therefore recommended that further works are undertaken with respect to bats
including an assessment of the building, which is to be extended, and portacabin, which is to
be removed, for bat roost potential.
11.2.5 The vegetation present on site offer little opportunity for nesting birds and ground nesting
birds will suffer regular disturbance and predation from the nearby domestic cat population.
Birds which nest in scrub or trees may use this vegetation, where present on site or on the
boundaries of the site. It is anticipated that vegetation forming the southern boundary of
the site will not be affected by the works, however, if this is not the case then this report may
require some amendment. Should vegetation clearance be required at the site, it is
recommended that this is undertaken outside of bird breeding season (i.e. not between
March and September). If this is not possible, then an inspection of the vegetation to be
cleared should be undertaken by an experienced ecologist immediately prior to the
vegetation being cleared.
11.2.6 It is considered highly unlikely that dormice are present in or adjacent to the works area
given the lack of records, the geographic location and the vegetation present at the site.
30
11.2.7 There are no water features located on the site, however, there are water features associated
with the Local Wildlife Site which is located to the immediate west of the site under
consideration. There are recent records of otter and white clawed crayfish being present
within the region, therefore, these species may be present within the vicinity of the site. The
adjacent watercourse may contain white clawed crayfish but this species will be confined to
the watercourse. Otter may utilise the Local Wildlife Site, however, it is considered unlikely
that these species would utilise the site under consideration significantly. Water voles have
been recorded in this area, however, it is considered highly unlikely that water vole would be
present in the development area given that their life cycle would be predominately
completed in close proximity to the water body.
11.2.8 It is therefore considered unlikely that the site would be used significantly by protected
species with the possible exception of bats.
11.2.9 Given the proximity of the site to a Local Wildlife Site and water features which could
potentially support protected species, it is considered that further assessment would be
required in order to assess the likely impact of the proposed development and construction
works on the Local Wildlife Site which is located to the immediate west of the site. This
should include an assessment of the potential ecological impacts which may arise from the
proposed works including the construction and developed phases such as increased
sediment run-off, disturbance, dust, noise and light pollution, together with increased
shading to the Local Wildlife Site from any proposed tree planting etc.
11.2.10 Based on the above, it is recommended that further ecological assessment works are
undertaken for the site. It is recommended that a Preliminary Ecological Appraisal
including an extended Phase 1 Habitat Survey and assessment for protected species is
undertaken giving particular attention to bats and the likely impact of the proposed
development and construction works to the adjacent Local Wildlife Site. The works should
include an inspection of the buildings to be removed, demolished or extended by a licenced
Bat Worker to determine the bat roost potential of these features and to look for evidence of
bats. It is considered that the extended Phase 1 Habitat Survey can be undertaken at any
time of year (given the urban location of the site) and buildings can also be assessed for bat
roost potential at any time of year. It should be noted however that if the potential does
exist for bats (or other protected species) then further surveys including bat emergence and
/ or activity surveys may be recommended which should be undertaken between May and
September. It is therefore recommended that these works are undertaken as soon as
possible in order to avoid delays to the project.
31
12 Archaeology
12.1 Archaeological Review
12.1.1 Opus has undertaken a review of a number of online resources in relation to the
archaeological potential of the site. The online resources reviewed included the following:
•
•
•
•
National Heritage List for England;
English Heritage PastScape database, based on the National Record of the Historic
Environment;
National Monuments Record Excavation Index and;
Derbyshire Historic Environment Record.
12.1.2 The above resources were accessed via the Heritage Gateway, with a search carried out
centred on Grid Reference 447860, 376240. This search identified 14 Grade II and 1 Grade
II* Listed Buildings within 1km of the site. All of the listed buildings were present at a
distance greater than 500m from the site.
12.1.3 English Heritage PastScape identified 3 records in relation to archaeology and buildings all
of which were between 500m and 1km from site.
12.1.4 The Derbyshire Historic Environment Record identified 20 features within 1km of the site
with 6 present within 500m and 2 within 250m. The features present within 500m of the
site are detailed as follows: Earthworks and Folly (site of), Slaley Farm, Barlborough Brick
and Tile Works (site of),
Barlborough Former Limestone quarry, Clowne Road,
Barlborough Ridge and Furrow (site of), Slaley Farm, Barlborough, Barlborough Colliery
(site of), Clowne, Raised Earthern Platform, Barlborough
12.1.5 The two features identified within 250m of the site are the Ridge and Furrow and the
Earthworks and Folly, located at Slaley Farm. The Ridge and Furrow was noted to be visible
in 1986 and is believed to be of Medieval date (1066 AD to 1539 AD). However it is now
noted that the area has subsequently been developed. The enclosure and folly are believed to
be Post Medieval (1540 AD to 1900 AD).
12.1.6 There are no Scheduled Ancient Monuments shown to be present within 1km of the site.
12.2 Preliminary Archaeological Assessment
12.2.1 Based on the information reviewed to date as detailed above, it is considered that the
potential for the site to be underlain by archaeological remains are low and therefore no
specific precautions are recommended in relation to archaeology for this site. This should
however be confirmed with the Local Authority Heritage Officer prior to any irrevocable
action being undertaken.
32
13 Recommended Further Works
13.1
Based on the information obtained to date, it is recommended that the following further
assessment works are undertaken with a view to redevelopment of the site for a commercial
development:
•
•
•
•
•
•
Undertake a utility survey in order to determine the location of existing private services
such as electricity, gas, water mains, sewers and drainage, communication cables etc.
present within the site boundary in order to inform the Phase 2 investigation and future
development design and construction works;
Undertake further ecological assessment of the site by undertaking a Preliminary
Ecological Assessment including an extended Phase 1 Habitat Survey with particular
reference to bats and consideration of the impact of the proposed development and
construction works on the adjacent Local Wildlife Site. It recommended that this is
undertaken as soon as possible i.e. before the end of September (weather permitting). It
should be noted that any further recommended ecological surveys may be seasonal and
could therefore result in significant delays;
Undertake a Coal Mining Risk Assessment to address the significant risk of possible
historical shallow mine workings underlying the site in addition to unrecorded
underground mine workings. A review of historical aerial photographs may provide
further information about the extent of the open cast workings. In addition, the details
of the ‘restoration’ of the land for employment as noted in the response from the
Planning Department of the Bolsover District Council should be sought to determine if
it has adequately addressed the significant risk identified.
Carry out an intrusive Phase 2 Contaminated Land and Geotechnical investigation to
allow an assessment of soil, groundwater and ground gas contamination and to provide
recommendations for foundation engineering including confirmation of the depth of
any Made Ground and bedrock across the site;
Undertake preliminary soakaway testing at the site in order to assess the viability of
soakaways for surface water drainage dependant on the ground conditions encountered
in the Phase 2 intrusive investigation;
Liaison with the Local Authority and Environment Agency to seek their approval of the
findings contained within this Phase 1 report and the proposed recommended further
works.
DRAWINGS
Area of
Patchy Grass
Approx. 15
degree slope
westwards
Western Site
Air
Conditioning
Units
Eastern Site
Grassed Area
Bonfire site
Figure 1: Plan of Site Features
Former location of temporary
units. Not present at time of
walkover
Site Boundary
Base plan provided by Tour Construction
Ltd. Modified by Opus.

Bolsover Cruise Club, Barlborough

Transcription

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