Released under the Official Information Act 1982
AUCKLAND COUNCIL
Notification Determination and Resource Consent Decision Report
Restricted Discretionary Activity
SUBJECT:
To undertake approximately 22 ha of earthworks associated with the
upgrade and altering of the runway and taxiway at the Whenuapai
Airfield, pursuant to sections 9, of the Resource Management Act 1991.
Specifically the work involves the upgrade of Runway 03-21, the
removal of a taxiway, the construction of a new taxiway and the
associated construction of a new stormwater system. The discharge of
stormwater and management of land contamination will be authorised
by separate consents.
FROM:
Mike Martindale, Compliance Officer, Stormwater
TO:
Roger Bannister, Manager Sediment and Contaminated Land
DATE:
22 November 2010
SECTION 1 – DESCRIPTION OF APPLICATION
1.1
APPLICATION DETAILS
Applicant’s Name:
New Zealand Defence Force
Consent Number:
38623
File Numbers:
22193
Date Application Received:
18 October 2010
Date Application Accepted:
18 October 2010
Site Address/Location:
Brigham Creek Road, Whenuapai, Waitakere City
Released under the Official Information Act 1982
PERMIT NO: 38623
Date of Site Visit:
Various previous visits undertaken
Approximate Map Reference
5927426N - 1745670E
(NZTM):
Site and Earthworks Area:
311 hectares with 22 hectares of earthworks proposed
Legal Description:
Various
Further Information Required:
No
Significant/Cultural Heritage
Not identified
features:
Tangata Whenua Significant
No specific tangata whenua issues have been identified
Site:
through the consent
There are no significant natural heritage areas identified
within the property that will be subject to works associated
Significant Natural Heritage
with this proposal. Two art-deco buildings within the
Areas and Value Site:
airfield will remain outside the area of works.
Auckland Council (AC)
Relevant Territorial Authority:
Waitakere Area
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1.2
LOCATION MAP
Approximate Site Location
1.3
APPLICATION DOCUMENTS (PLANS AND REFERENCE DOCUMENTS)
A summary of the plans and reference documents associated with the application can
be found in Appendix A of the application report.
1.4
DESCRIPTION OF PROPOSAL
The applicant proposes to upgrade Runway 03-21, remove Taxiway G and potentially
Taxiway E, extend Taxiway A, the construction of a new taxiway and associated
stormwater system.
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Earthworks
The proposed works will cover an area of approximately 22 ha with the applicant
noting that the earthworks will be undertaken in stages, of less than 5 ha to minimise
the area exposed at any one time. The existing runway is currently an inverted crown
and it is proposed to upgrade the runway surface to a crown to assist with long term
stormwater drainage. To allow the airfield to remain operational during the upgrade
works (focused on Runway 03-21), Taxiway A will be extended to allow access to
Runway 08-26. In addition the majority of taxiway G and potentially taxiway E which
are no longer required will b e removed and reinstated with topsoil and grass.
The applicant has developed an Erosion and Sediment Control Plan (ESCP) which
outlines that works will be undertaken in three main stages as outlined below. From
an erosion and sediment control perspective the site works are divided into 4 work
areas. Area 1 includes the taxiway G works, stockpiling activity and construction of a
sediment retention pond. Area 2 is associated primarily with taxiway works and
areas 3 and 4 are primarily related to the stormwater management and the upgrade
works.
The applicant proposes to use a number of erosion and sediment control practices
including silt fences, bunds, staging swales, clean water diversions and sediment
retention ponds for all stages with these shown on Plan Numbers 4243897 – CK –
030 – Revision A and 4243897 – CK – 031 – Revision A. All erosion and sediment
control measures will be installed and maintained in accordance with ARC TP90.
After the erosion and sediment control measures have been installed the work will
start. The work can be described in the following discrete work areas as detailed
below. .
Swale construction
Drainage pipes
Taxiway G/H pavement removal and concrete crushing
Taxiway A construction
Ducting for airfield ground lighting
Crushed concrete stockpile
Stormwater attenuation pond
Sediment retention pond
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The above work areas are described in the application. Further the ESCP
accompanying the application details the construction sequence for the earthworks
referred to as Stage 1, Stage 2a and Stage 2b. For each of these stages a clear
methodology, erosion and sediment control sequence and erosion and sediment
control details is provided
The applicant has indicated that the earthworks will take 13 months to complete.
Work will start in January 2011 and cease over the winter period and resume in
October 2011 with an expected earthworks conclusion in April 2012.
1.5
REASON FOR APPLICATION
Consent is required under the provisions and rules of the following Regional Plan:
Earthworks
Auckland Regional Plan: Sediment Control (ARP:SC) - Rule: 5.4.3.1
The applicant proposes to undertake approximately 22ha of earthworks. The activity
is considered to be a restricted discretionary activity under Rule 5.4.3.1 of the
ARP:SC as the total area of earthworks exceeds 5ha and is located outside the
Sediment Control Protection Area (SCPA). It is noted that a small portion of the
works associated with the construction of the stormwater attenuation pond is within
the SCPA however this is noted to not change the status of the activity.
Further to the above, a stormwater diversion and discharge consent is required for
the site subject to the provisions of the Proposed Auckland Regional Plan: Air, Land
and Water. The consent application for such an activity has been lodged with AC
and it is understood that the assessment is currently in progress. Further it is
understood that the stormwater management layout as detailed within the application
the subject of this assessment is generally accepted and will not change substantially
through the process.
A contaminated land consent is also required for the site subject to the provisions of
the Proposed Auckland Regional Plan: Air, Land and Water. The consent application
for such an activity is currently being prepared. It is recognised that if, as a result of
that application, amendments to the earthworks are required than this may result in a
variation being required to this earthworks consent subject to s127 of the RMA.
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Streamworks are not detailed within the application and no consents have been
sought for such an activity however it is noted that plan number 4243897 – CK – 030
indicates a stream crossing will be required. This has not been assessed through
this application and may require consent or will be undertaken in accordance with the
permitted activity rules of the Proposed Auckland Regional Plan: Air, Land and
Water.
Overall this application is considered as a restricted discretionary activity
1.6
SITE AND NEIGHBOURHOOD / CATCHMENT / ENVIRONS
DESCRIPTIONS
The Whenuapai Airfield is located on Brigham Creek Road near the upper reaches of
the Waitemata Harbour. The Airfield covers an area of about 311ha. The majority of
the area comprises of runway/taxiways and associated grassed area. Houses and
barracks are located on the Western side of the site.
The Airfield is located on flat to undulating terraced land underlain by the Puketoka
Formation of the Tauranga Group. The Puketoka Formation comprises of mud, sand
and gravel, with muddy peat and lignite. There are two areas of fill to the northern
and eastern ends of the main runway. Information provided indicates that the Airfield
was built on a large section of swamp.
Tauranga Group alluvium is underlain by interbedded siltstone and sand stone of the
Waitemata Group bed rock. The site is flat with some slopes greater than 1% near
the boundaries.
The Airfield is located within the high use Kumeu-Hobsonville Waitemata aquifer
within the Kaipara River-North Shore Resource Area (ARC2004)
Based on previous investigations there may be discrete areas of contamination within
one of the work areas (Stage Two). The applicant is surveying the area to determine
the exact location and extent of the contamination within the area. The applicant will
confirm the extent of the potential contamination before earthwork starts in Stage
Two, so that the appropriate consent can be obtained if necessary. All contaminated
soil identified by past or future investigations will be isolated and disposed of in an
appropriate fill facility. As detailed in section 1.5 above a consent for the disposal
and management of this contaminated material has been applied for.
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The Auckland Regional Plan: Coastal (ARP: C) does not identify any areas close to
sites that have special value to Tangata Whenua however the applicant recognises
that the water quality of the harbour is of particular significance to Tangata Whenua
and will take appropriate action to avoid sediment discharges to the harbour, which is
the subject of this consent.
Receiving Environment
The Airfield is located next to the inner Waitemata Harbour. The area has a large
diversity of flora and fauna with abundance of birds and fish and extensive beds of
shellfish. The inlet changes from marine to a natural freshwater environment that is
important for migratory native fish. The saline vegetation is important for coastal bird
habitat.
The inlets of the area creeks (Brighams, Rangitopuni, Paremoremo, Lucas and
Hellyers) are largely unspoilt. The streams surrounding the site are not within
Natural Stream Management Area as noted in the Proposed ALW Plan.
The Waiarohia Inlet, downstream of Herald Island and to the east of the Airfield is not
identified as a Coastal Protection Area.
The coastal and entire estuarine areas of the Waitemata Harbour are identified as
having high ecological value.
The majority of the earthworks proposed will be outside of the Sediment Control
Protection Area (SCPA) defined as being 100m from the CMA and 50m from any
water course. A small portion of works (an attenuation pond adjacent to Brighams
Creek Road) will be within 50m of a watercourse and therefore will be in the SCPA.
These works within the SCPA, while recognised as higher risk activities, are not
considered to pose any significant issues and will be effectively managed through the
erosion and sediment control measures proposed.
1.7
BACKGROUND / SITE HISTORY
The NZDF will remain at Whenuapai for the foreseeable future. As a result the NZDF
is seeking to upgrade the Airbase to allow the RNZAF to continue to operate
effectively. The current Runway 03-21 surface is an inverted crown (v shaped) and it
is proposed to upgrade the runway to a crown. Due to the current shape of the
runway stormwater drains to the centre slot drain. The reconfiguration of the runway
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will allow stormwater to flow perpendicular to the runway and into the adjacent
grassed area. The applicant has proposed to construct stormwater treatment swales
on both sides of the runway to collect and convey the stormwater to catchpits. The
swales will discharge to catchpits spaced every 90m. This is the subject of a
separate assessment associated with a stormwater diversion and discharge consent.
To allow the Airfield to remain operational during the upgrade of Runway 03-21,
Taxiway A will be extended to allow access to Runway 08-26. In addition the majority
of Taxiway G and possibly some of Taxiway E will be removed and grassed. As a
result approximately 2.35ha of impervious area will be created and 2.82 ha of
impervious area will be grassed. It is possible that an additional 0.77ha of impervious
area will be removed if the material (aggregate) can be used in the construction of
Runway 03-21.
SECTION 2 – DETERMINATION OF NOTIFICATION MATTERS
2.1
STATUTORY PROVISIONS
An application for resource consent
must be publicly notified if the activity will have
or is likely to have adverse effects on the environment that are more than minor, if the
applicant requests it or if a national environmental standard or a rule in a plan
requires it.
An application
may be publicly notified if special circumstances exist.
2.2
REQUEST FOR THE APPLICATION TO BE PUBLICLY NOTIFIED
[SECTION 95A(2)(B)]
Under section 94(C)(1) the applicant has not requested that the application be
publicly notified.
Once a proposal is deemed to be a restricted discretionary activity the assessment of
effects is limited to those matters specified in the relevant regional plan to which the
AC has restricted its discretion.
The consent authority must be satisfied that the adverse effects of the activity will be
minor. If the adverse effects are more than minor, the application must be publicly
notified (s93(1)(b)). If the consent authority is satisfied that the effects of the activity
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will be minor, the application can be dealt with on either a limited notified or non-
notified basis, depending on whether there are any affected persons and whether all
the written approvals have been obtained.
2.3
REQUIREMENT FOR PUBLIC NOTIFICATION IN ACCORDANCE WITH A
RULE IN A PLAN OR A NATIONAL ENVIRONMENTAL STANDARD (NES)
(SECTION 95A(2)(C))
The application is not required to be publicly notified, or notice served, in accordance
with a rule in the Auckland Regional Plan: Sediment Control or an NES.
SECTION 3 – ASSESSMENT OF THE ADVERSE EFFECTS OF THE
ACTIVITY ON THE ENVIRONMENT
3.1
STATUTORY CONSIDERATIONS
In addition to the overall assessment of the environmental effects section 95D sets
out criteria to be used by AC when forming an opinion as to whether adverse effects
are minor or more than minor.
A consent authority that is deciding whether an activity will have or is likely to have
adverse effects on the environment that are more than minor—
(a) must disregard any effects on persons who own or occupy—
(i) the land in, on, or over which the activity will occur; or
(ii) any land adjacent to that land; and
(b) may disregard an adverse effect of the activity if a rule or national environmental
standard permits an activity with that effect (permitted baseline); and
(c) in the case of a controlled or restricted discretionary activity, must disregard an
adverse effect of the activity that does not relate to a matter for which a rule or
national environmental standard reserves control or restricts discretion; and
(d) must disregard trade competition and the effects of trade competition; and
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(e) must disregard any effect on a person who has given written approval to the
relevant application.
3.2
SECTION 95D - ASSESSMENT OF PERMITTED BASELINE
It is considered there would be minimal assistance gained by comparing the effects of
a relevant permitted activity to the proposal as the comparison is unable to provide an
adequate baseline to properly assess the environmental effects.
3.3
ASSESSMENT OF EFFECTS (TO DETERMINE NOTIFICATION)
The following assessment of the adverse effects of the activity on the environment
addresses the activity’s actual and potential effects; distinguishes the nature, extent
and magnitude of the effects and the significance of their consequent effect on the
environment; and identify their impact (such as continuous or intermittent, or of a long
or short term duration). Where appropriate the assessment criteria of the Auckland
Regional Plan: Sediment Control are used as the context for assessing the potential
adverse environmental effects arising from the proposed.
3.3.1 Earthworks
Undertaking land disturbance activities such as earthworks has the potential to
generate and discharge sediment laden runoff, particularly during rain events. If
uncontrolled, this discharge can cause deterioration of water quality within the
receiving environment. This deterioration can lead to biological effects on aquatic life,
transportation of other pollutants, stream blockages, effects on consumable water
resources, damage to property and public utilities, and damage to aesthetic values.
To address these potential effects, the ARPSC requires land disturbance activities to
employ methods which avoid, remedy or mitigate adverse effects on the quality of
water in waterbodies and coastal waters. The generally accepted methods for
avoiding, remedying, or mitigating these adverse effects are outlined in Auckland
Regional Council Technical Publication No. 90 Guidelines for Land Disturbing
Activities in the Auckland Region (TP90).
As a restricted discretionary activity, the Auckland Regional Plan: Sediment Control
restricts discretion under Rule 5.4.3 to the following matters:
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i.
Techniques used to restrict or control sediment being transported from the
site and the effects or impacts of sediment on water quality from the
techniques chosen, including the practicality and efficiency of the proposed
control measures;
ii.
The proportion of the catchment which is exposed;
iii.
The proximity of the operation to the receiving environment;
iv.
The concentration and volume of sediment that may be discharged;
v.
The time during the year which the bare surface is exposed;
vi.
The time of the year when the activity is undertaken;
vii.
The duration of the consent;
viii.
Monitoring the volume and concentration of any sediment that may be
discharged;
ix.
Administrative charges under Section 36 of the RM Act;
x.
Bonds under Section 108(1)[A](b) of the RM Act; and
xi.
Provision for obtaining Environmental Benefits (Financial Contributions).
Matters (i) to (viii) have been addressed in the assessment of effects on the
environment. It is considered that a bond is not required for the proposed
earthworks. Matter (ix) is not deemed necessary to address in this report and matter
(xi) is not applicable.
Techniques used to restrict or control sediment being transported from the site and
the effects or impacts of sediment on water quality from the techniques chosen,
including the practicality and efficiency of the proposed control measures
Any potential discharge of sediment from the site will discharge to an existing
reticulated system, a stormwater pond environment or a grass sward and ultimately
will enter the Waitemata Harbour. Within the immediate freshwater environment to
which the discharge will eventually result, water quality may be degraded as a
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consequence of the earthworks, as discharges from the sediment control measures
are likely to be highly turbid and cause discolouration of the water column.
The applicant has proposed the use sediment retention ponds and silt
fences/decanting earth bunds to control runoff from the earthworks areas including a
works methodology which employs staging and progressive stabilisation of completed
areas. This, combined with the low grades on site, will result in a relatively low
potential for sediment to be generated and to discharge from the site. The applicant
has not detailed within the application any specific aspects of proposed chemical
treatment of sediment retention ponds however it is recommended that with the close
vicinity of the receiving environment, and the values of the receiving environment, that
chemical treatment will provide a direct benefit and ensure that effects are less than
minor. This chemical treatment could take the form of either a rainfall activated
device or manual batch dosing and it is recommended that this detail be provided
through a condition of consent.
It is important that during the works associated with the stormwater attenuation pond
that the discharge from the reticulated stormwater network shall temporarily bypass
the proposed stormwater pond in a stabilised system until such time as the pond is
completed and stabilised. Further it is also important that there are no discharges of
sediment laden runoff into subsoil and/or drainage systems that exist within the
earthworks area. These form proposed conditions of consent.
It is recognised that once a contractor is employed to undertake the proposed works
that the methodologies may change and the associated erosion and sediment control
measures may also require amendment to ensure workability. To allow for such
circumstances it is recommended as a condition of consent that an updated erosion
and sediment control plan be provided prior to earthworks commencing. It is
expected that this will build on the existing erosion and sediment control plan (dated 7
October 2010) and will incorporate chemical treatment and updated design details,
any further updates required as conditions of consent and also amendments
proposed by the contractor undertaking the works.
It is considered that, provided the applicant undertakes works in accordance with the
Erosion and Sediment Control Plan and methodology and meets the requirements set
out in the specific conditions proposed for the resource consent, the operation will
have employed the best practical option (BPO) to minimise sediment discharge from
the site.
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The proportion of the catchment which is exposed.
The earthwork will cover an area of approximately 22 ha. The applicant has
proposed to undertake the work in stages and ensure that no more than 5 ha is
exposed at any one time. It is considered that this will limit the area open and
therefore reduce the risk of sediment-laden water from entering the receiving
environment. A consent condition is included which confirms this staging
requirement. Overall, with the appropriate erosion and sediment controls in place, it
is considered that the works will not result in effects to be more than minor.
The proximity of the operation to the receiving environment.
The majority of the earthworks will be undertaken more than 100m from the CMA and
more than 50m from any watercourse (i.e. not within a Sediment Control Protection
Area). There is a small area of work to construct a stormwater attenuation pond that
will be within 50m of a watercourse adjacent to Brighams Creek Road.
It is considered that the sediment controls proposed for the site are sufficient to
mitigate any effects of discharge on the receiving environment to be no more than
minor.
The concentration and volume of sediment that may be discharged.
The Applicant has provided an estimate of the sediment likely to be discharged from
the site during works. Using the Universal Soil Loss Equation (USLE) the applicant
estimates that 10.63 tonnes of sediment could potentially be generated from the
project. With appropriate erosion and sediment controls as outlined in the applicant’s
application the generation of sediment has been estimated as being approximately
4.27 tonnes over the construction period.
The benefits of assessing sediment yield is using an onsite comparative analysis.
This allows high sediment generating areas to be identified, and controls and
monitoring targeted at these areas. The USLE assessment provides a ‘closer’ look at
the site and begins to narrow the focus on what are expected to be the high sediment
generating areas within the site. The assessment has concluded that there are no
particular areas within the site that are considered high risk however both Areas 3
and 4 from within the earthworks location indicate a higher sediment yield and will
need closer management to ensure sediment generation is minimised.
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It is noted that a USLE assessment should not be used to determine the
environmental effects of an earthworks activity. This is due to the inability of the
equation to actually predict what the sediment yield will be. Clearly, a very large
number of factors combine to influence the sediment yield, and many of these cannot
be predicted.
Erosion and sediment control measures are used to minimise the effects of
earthworks on receiving environments. The former acts to limit the amount of
sediment eroded, and the latter to remove sediment once mobilised. Both types of
controls are critical on any site, although the emphasis should be placed on erosion
control in order to minimise the mobilisation of sediment. A significant reduction in
erosion on a site will lead to far less sediment being generated, treated, and
ultimately lost through the control measures than if reliance had been placed solely
on sediment control.
The applicant has proposed earthworks methodologies and control measures to limit
both erosion and sedimentation. In addition, an assessment of the actual and
potential sediment yield that is likely to be discharged into the receiving environments
has been completed by the applicant
The sediment controls proposed have been sized and designed in general
accordance with TP90, which provides a satisfactory level of mitigation to prevent the
discharge of sediment. It is however recommended that chemical treatment be
employed on the site and a condition of consent confirms this requirement. Further it
is noted that the design of the erosion and sediment control measures provided does
not fully reflect the latest changes to TP90 which occurred in December 2007. It is
recommended that these updates be provided through the conditions of consent and
in particular through an updated erosion and sediment control, plan prior to works
commencing.
The time during which the bare surface is exposed.
As the site will be separated into discrete stages, the exposed areas are generally in
the range of up to 5ha.
The application proposes to progressively stabilise areas that have been completed.
It is recommended that this proposal be ensured by appropriate consent conditions.
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The time of the year when the activity is undertaken.
Generally, the proposed earthworks will take place during the earthworks season
from 1 October to 30 April. It is recommended that this be controlled by appropriate
consent conditions with the allowance that winter works could be undertaken with the
approval of the Manager.
Monitoring the volume and concentration of any sediment that may be discharged.
The applicant has proposed routine monitoring of the discharges in accordance with
AC requirements. The applicant has indicated that site and erosion and sediment
controls will be monitored daily, including prior to and after storm events.
3.4
CONCLUSION
Overall, for the reasons described above the adverse effects arising from the
proposal are considered to likely to be less than minor.
3.5
IDENTIFICATION OF WHO MAY BE ADVERSELY AFFECTED BY THE
GRANTING
OF
THE
APPLICATION
AND
WHETHER
WRITTEN
APPROVAL HAS BEEN OBTAINED.
It is considered that there are no affected parties in relation to this application. The
applicant is the owner of the property where works are to be undertaken.
3.6
DO SPECIAL CIRCUMSTANCES EXIST?
There are no special circumstances that exist in relation to this application which
would require the application to be publicly notified.
3.7
RECOMMENDATION ON NOTIFICATION
It is recommended that this application be processed on a
non notified basis for the
following reason:
The adverse effects on the environment of the activity for which consent is sought will
be no more than minor for the following reasons:
With the installation of erosion and sediment controls in accordance with the
agreed erosion and sediment control plan and TP90, the operation will have
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employed best practise to minimise erosion and the volume of sediment that
could potentially discharge from the site.
There are no persons considered adversely affected by the granting of this consent
3.8
NOTIFICATION DECISION
Reported and Recommended by:
Mike Martindale
Title of Reporting Officer:
Compliance Officer, Stormwater
Signed:
Date:
3.9
DETERMINATION OF NOTIFICATION.
Acting under delegated authority and for the reasons set out in the above
assessment, Consent Number 38623 shall be non-notified.
Team Manager:
Roger Bannister
Title
Manager Sediment and Contaminated Land
Signed:
Date:
SECTION 4 – ASSESSMENT OF APPLICATION
4.1
STATUTORY CONSIDERATIONS
When considering an application for a restricted discretionary activity the consent
authority must have regard to Part 2 of the Resource Management Act 1991 (RMA)
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(Purposes and Principles – sections 5 to 8), and sections 104, and 104C, and where
relevant 105 and 107 sections of the RMA.
The statutory considerations under section 104 provide the ‘legal framework’ within
which the application is addressed. Amongst other things, this framework requires
consideration of any actual or potential effects on the environment; the relevant
provisions of national policy statements (including the NZ coastal policy statement);
regional policy statements and regional plans (both operative and proposed); and any
other relevant and reasonably necessary matters to determine the application.
Under section 104C a consent authority may grant or refuse consent for a restricted
discretionary activity and may impose conditions only for those matters specified in
the plan or proposed plan over which it has restricted the exercise of its discretion.
4.2
SECTION 104 EVALUATION
4.2.1 Section 104(1)(a) – Consideration of the Actual and Potential Effects on the
Environment
As described in section 3.3 the proposed erosion and sediment controls, with
amendments through conditions of consent, are considered sufficient to treat and
minimise sediment discharges from the site. These will ensure that the effects are no
more than minor.
The ultimate receiving environment is the Waitemata Harbour. There are no other
actual and potential adverse effects that could be generated.
4.2.2 Section 104(1)(b)(i) and (ii) – Consideration of the Relevant National
Environmental Standards and other Regulations
For the coastal environment of the Hauraki Gulf, s7 and s8 of the Hauraki Gulf Marine
Park Act 2000 is treated as a New Zealand Coastal Policy Statement.
Section 7 of the HGMPA relates to the interrelationship between the Hauraki Gulf, its
islands, and catchments and the ability of that interrelationship to sustain the life-
supporting capacity of the environment of the Hauraki Gulf. Section 7 of the HGMPA
has regard for the life-supporting capacity of the environment of the Gulf and its
islands to provide for the historic, traditional, cultural, and spiritual relationship of the
tangata whenua of the Gulf with the Gulf and its islands. Furthermore, this section of
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the HGMPA provides for the social, economic, recreational, and cultural well-being of
people and communities to use the resources of the Gulf by the people and
communities of the Gulf and New Zealand for economic activities and recreation and
to maintain the soil, air, water, and ecosystems of the Gulf.
Section 8 of the HGMPA relates to management of Hauraki Gulf. It calls for regulators
recognise the national significance of the Hauraki Gulf, its islands, and catchments,
the objectives of the management of the Hauraki Gulf, its islands, and catchments.
Specifically Section 8 relates to the following:
(a)
the protection and, where appropriate, the enhancement of the life-
supporting capacity of the environment of the Hauraki Gulf, its islands, and
catchments:
(b)
the protection and, where appropriate, the enhancement of the natural,
historic, and physical resources of the Hauraki Gulf, its islands, and
catchments:
(c)
the protection and, where appropriate, the enhancement of those natural,
historic, and physical resources (including kaimoana) of the Hauraki Gulf, its
islands, and catchments with which tangata whenua have an historic,
traditional, cultural, and spiritual relationship:
(d)
the protection of the cultural and historic associations of people and
communities in and around the Hauraki Gulf with its natural, historic, and
physical resources:
(e)
the maintenance and, where appropriate, the enhancement of the
contribution of the natural, historic, and physical resources of the Hauraki
Gulf, its islands, and catchments to the social and economic well-being of the
people and communities of the Hauraki Gulf and New Zealand:
(f)
the maintenance and, where appropriate, the enhancement of the natural,
historic, and physical resources of the Hauraki Gulf, its islands, and
catchments, which contribute to the recreation and enjoyment of the Hauraki
Gulf for the people and communities of the Hauraki Gulf and New Zealand.
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It is concluded that the proposal is in accordance with the purpose and of the
HGMPA, with specific regard to s7 and 8 of the Act, and compatible with a New
Zealand Policy Statement and the New Zealand Coastal Policy Statement below
4.2.3 Section 104(1)(b)(iii) – Consideration of any relevant provisions of a National
Policy Statement.
There are no National Policy Statements relevant to this application.
4.2.4 Section 104(1)(b)(iv) – Consideration of any Relevant Provisions of the New
Zealand Coastal Policy Statements.
The purpose of the New Zealand Coastal Policy Statement 1994 (NZCPS) is to state
policies in order to achieve the purpose of the Resource Management Act, in relation
to the coastal environment of New Zealand.
The relevant policies of the NZCPS are the preservation of the natural character of
the coastal environment which includes protection from inappropriate subdivision, use
and development; protecting areas of significant indigenous vegetation and habitats
of indigenous fauna in that environment; protecting the following features which are
essential or important elements of the natural character of the coastal environment:
landscapes, seascapes and landforms, areas of spiritual, historical or cultural
significance to Maori and significant places of historic or cultural significance;
protecting the integrity, functioning and resilience of the coastal environment; and to
restore and rehabilitate the natural character of the coastal environment.
As detailed above, for the coastal environment of the Hauraki Gulf, sections 7 and 8
of the HGMPA must be treated as a New Zealand coastal policy statement. Section 7
recognises the national significance of the Hauraki Gulf, its islands and catchments,
while section 8 outlines the objectives of the management of the Hauraki Gulf, its
islands and catchments. The objectives are intended to protect, maintain and where
appropriate enhance the life supporting capacity of the environment of the Gulf and its
islands.
4.2.5 Section 104(1)(b)(v) – Consideration of the Relevant Provisions of the Auckland
Regional Policy Statement.
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The ARPS is a strategic document which sets out the direction of managing the use,
development and protection of the natural and physical resources of the Auckland
region. This document became operative in 1999.
In 2005, the ARC publicly notified Proposed Change 6, in response to the Local
Government Amendment Act 2004 (LGAAA) which sought to amend, amongst other
things, the regional overview and strategic direction of the ARPS and mainly
consisted of changes to Chapter 2 (Regional Overview and Direction) and Chapter 4
(Transport).
These amendments sought to codify the growth and transport strategies that had
been promulgated and agreed to in the Regional Growth Strategy and the associated
Sector Agreements.
As at the 31 July 2007, the ARC released decisions regarding Proposed Change 6
and matters now lie within the appeal period. Given the stage in the statutory
process that Proposed Change 6 is at, it is considered that some weighting should be
given to the decision version of Plan Change 6 although the proposal must also be
assessed against the operative policy statement.
The strategic objectives and policies of the ARPS provide a framework to achieve the
integrated, consistent and co-ordinated management of the Region’s resources. This
framework is based upon not compromising the strategic direction of containment and
intensification and the avoidance of adverse effects on the environment.
Under the ARPS, matters related to environmental protection, such as the coastal
environment, water quality, water conservation and allocation and air quality have
specific objectives, policies and methods to achieve sustainable and integrated
management of major natural and physical resources in the Region.
Chapter 8 – Water Quality
Chapter 8
of the ARPS contains objectives, policies and methods which address
among other things the effects of the discharge of contaminants on water quality in
the region. In particular:
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8.3
Objective
1.
To maintain water quality in water bodies and coastal waters which have good
water quality, and to enhance water quality which is degraded particularly for
the following purposes:
(i)
Estuaries and harbours: protection of aquatic ecosystems, recreation,
fishing and shellfish gathering, cultural and aesthetic purposes.
(ii)
Open coastal waters, including parts of the Hauraki Gulf: its natural
state.
(iii) Groundwater: water supply.
(iv) Lakes, rivers and streams: protection of aquatic ecosystems, recreation,
food gathering, water supply, cultural and aesthetic purposes.
(v)
Wetlands: protection of aquatic ecosystems.
8.4.7 Policies Stormwater and Sediment Discharges
(1)
All new developments discharging stormwater, whether allowed as a
permitted activity or by a resource consent, shall adopt appropriate
methods to avoid or mitigate the adverse effects of urban stormwater
runoff on aquatic receiving environments.
(3)
All land disturbance activities which may result in elevated levels of
sediment discharge shall be carried out so that the adverse effects of
such discharges are avoided, remedied, or mitigated.
The relevant provisions of the Auckland Regional Policy Statement have been
considered and it is concluded that the proposal is consistent with the Auckland
Regional Policy Statement. This is primarily because the proposal satisfies the water
quality objectives of the ARPS through the proposed sediment control methods
during the construction phase and installation of additional stormwater management
devices which will ensure that the effects are not more than minor.
Earthworks
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The ARP:SC is narrowly focused on addressing the effects on water quality caused
by elevated levels of sediment generated by land disturbing activities such as
earthworks.
5.1
Objectives
5.1.1 To maintain or enhance the quality of water in waterbodies and coastal water.
5.1.2 To sustain the mauri of water in waterbodies and coastal waters, ancestral
lands, sites, waahi tapu and other taonga.
5.2
Policies
5.2.1 Land disturbance activities which may result in the generation and discharge
of elevated levels of sediment will be required to employ methods which avoid,
remedy or mitigate adverse effects on the quality of water in waterbodies and
coastal waters.
5.2.2 Land disturbance activities which may result in the discharge of elevated
levels of sediment into waterbodies and coastal waters shall be considered
inappropriate where they will have a significant adverse effect on:-
(i)
The qualities, elements and features which contribute to the natural
character of areas of the coastal environment, (including the coastal
marine area) wetlands, lakes and rivers and their margins; and which
are identified in the Auckland Regional Policy Statement and the
Auckland Regional Plan: Coastal as having outstanding or regionally
significant ecological, landform, geological or landscape values.
(ii)
Outstanding and regionally significant natural features and landscapes
as identified in the Auckland Regional Policy Statement and the
Auckland Regional Plan: Coastal.
(iii)
Areas of significant indigenous vegetation and significant habitats of
indigenous fauna as identified in the Auckland Regional Policy
Statement and the Auckland Regional Plan: Coastal as having
international, national and regional significance.
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(iv) Areas of significance to Tangata Whenua as identified in the Auckland
Regional Policy Statement and the Auckland Regional Plan: Coastal.
(v) Areas identified by Tangata Whenua in accordance with Tikanga Maori as
being of special spiritual, cultural and historical significance.
Unless the adverse effects can be avoided, remedied or mitigated.
Section 3.3 of this report has discussed the potential environmental effects
associated with the generation and discharge of sediment from the proposed
earthworks activities and measures to be employed to avoid, remedy and mitigate
these effects. This section has concluded that these activities can be managed to
ensure that these effects are no more than minor and will not impact significantly on
values associated with the receiving environment and thus the activities are
considered to be consistent with the above objectives and policies of the ARP:SC.
Section 104(1)(b)(vi) requires consideration of any relevant objectives and policies of
a plan or proposed plan. In this case, the relevant objectives and policies of the
PARP:ALW and ARP:SC have been considered in the assessment of this application.
It is concluded that the proposal is overall consistent with the relevant objectives and
policies.
Relevant Rules.
Earthworks
The ARP:SC rules have been developed to address the issues covered in the
objectives and policies and are instrumental in assessing the effect of an activity.
Rule 5.4.3.1 of the ARP:SC sets out the assessment criteria for the consideration of a
restricted discretionary activity. In deciding whether to grant or refuse consent and if
consent is granted, imposing conditions, the Council must have regard to these
criteria and any relevant matters in sections 104 of the RMA. An assessment of
effects against these relevant criteria has already been undertaken in this report.
4.3
CONSIDERATION OF ANY OTHER MATTERS – SECTION 104(1)(C)
Section 104(1)(c) requires that any other matter the consent authority considers
relevant and reasonably necessary to determine the application be considered. In
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this case there are no other matters that are considered necessary to determine the
application.
4.4
MATTERS RELEVANT TO DISCHARGE OR COASTAL PERMITS
(SECTION 105)
Section 105 of the RMA requires the consent authority to have regard to additional
matters in relation to a discharge permit that would contravene section 15 or section
15B of the RMA.
It is considered the provisions of section 105 have been met subject to appropriate
conditions of consent to ensure there is no significant adverse effect on the receiving
environment. It is further considered the applicant’s reasons for the proposed choice
are appropriate in the circumstances and there are no alternative methods of
discharge applicable in this case.
4.5
CONSIDERATION OF PART 2 (PURPOSE AND PRINCIPLES) OF THE
RMA
Section 104(1) requires the consideration of any resource consent application to have
regard to specific factors, subject to Part 2 of the RMA (“Purposes and Principles”).
The purpose of the RMA is to promote the sustainable management of natural and
physical resources. Sustainable management means the use, development and
protection of natural and physical resources in a way, or at a rate, which enables
people and communities to provide for their social, economic, and cultural wellbeing
and for their health and safety while: sustaining the potential of natural and physical
resources (excluding minerals) to meet the reasonably foreseeable needs of future
generations; and safeguarding the life-supporting capacity of air, water, soil, and
ecosystems; avoiding, remedying or mitigating any adverse effects of activities on the
environment. The proposal is considered to meet the purposes of the RMA and be a
sustainable development of the land/water resource which will provide for the efficient
use of the land/water resource whilst ensuring any adverse effects on the
environment will be appropriately avoided, remedied or mitigated through the
recommended conditions of consent.
Having considered the other matters set out in Part 2 of the RMA, it is concluded that
the proposal will not affect any matters of national importance (section 6). Regard
has been had to the identified matters of section 7 of the RMA. It is concluded that
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the application does not compromise the matters identified under section 7 of the
RMA. Furthermore, it is considered the proposal does not have any implications on
the application of the principles of the Treaty of Waitangi.
4.6
LAPSING OF CONSENT
Section 125 of the RMA provides that if a resource consent is not given effect to
within five years of the date of the commencement (or any other time as specified) it
automatically lapses unless the consent authority has granted an extension. In this
case, it is considered five years is an appropriate period for the consent holder to
implement the consent due to the nature and scale of the proposal.
4.7
DURATION OF CONSENT
Earthworks
Five years duration is proposed by the applicant. This duration is considered
appropriate based upon anticipated works timeframes and also taking into account
standard AC winter works restrictions and providing for any unforeseen
circumstances. The recommended expiry date of the consent is
30 April 2016 to
coordinate with the end of the earthworks season.
4.8
CONCLUSION
On the basis of the information submitted to the AC in support of the application, and
having assessed the proposal against the relevant matters detailed in Section 104 of
the RMA, it is considered that the proposal is consistent with Part 2 matters of the
RMA, and consistent with all relevant policies of the ARPS and the PARP:ALW.
The erosion and sediment control methods will be sufficient to minimise any sediment
discharged from the site in relation to the earthworks. Taking into account the
matters over which council has reserved the exercise of discretion when assessing
the effects of the activities on the environment from the proposed earthworks, the
effects are considered unlikely to be more than minor.
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SECTION 5 – RECOMMENDATION AND CONDITIONS
5.1
RECOMMENDATION
It is recommended that pursuant to sections 104, 104B and 105, of the RMA 1991,
consent is granted to the restricted discretionary activity as discussed in application
38623, ‘
Whenuapai Airfield Upgrade Works- Earthworks Assessment of Effects on
the Environment at Whenuapai Airfield located on Brigham Creek Road subject to the
conditions set out in section 5.2 below and for the following reasons:
1.
The proposal will be consistent with Part 2 of the RMA by promoting the
sustainable management of natural and physical resources. Overall it is
considered the cumulative safeguards of section 5(2)(a) to (c) have been met
and the proposal thereby meets the purpose of the RMA.
2.
The proposal is consistent with the relevant provisions of the Auckland Regional
Policy Statement, in particular the integrated management of the Region’s
natural and physical resources.
3.
The proposal is consistent with the relevant objectives and policies of the
ARP:SC.
4.
The proposal contributes to the social, economic and cultural well being of
people and their community by providing a new community recreation facility.
5.
The overall adverse effects on the receiving environment are no more than
minor. Subject to the imposition of conditions, the effects can be avoided,
remedied or mitigated.
6.
The application merits the granting of a resource consent pursuant to sections
104, 104B and, 105 of the RMA.
7.
The sensitivity of the receiving environment to the adverse effects of the
discharge will not be compromised given the level of the discharge, the
application of suitable control technology and appropriate on site management
techniques.
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5.2
CONDITIONS
General Conditions
1.
Earthworks shall expire on
30 April 2016 unless it has lapsed, been surrendered or
been cancelled at an earlier date pursuant to the Resource Management Act 1991.
2.
That pursuant to section 36 of the RMA, this consent (or any part thereof) shall not be
exercised until such time as all charges in relation to the receiving, processing and
granting of this resource consent are paid in full.
3.
That the proposal shall be in accordance with the plans and information submitted
with the application and numbered 38623 by the AC, subject to such amendments as
may be required by the following conditions of this consent.
AC Monitoring
4.
That the servants or agents of the AC shall be permitted access to the relevant parts
of the property at all reasonable times for the purpose of carrying out inspections,
surveys, investigations, tests, measurements or taking samples.
Specific Conditions – Earthworks Permit 38623
5.
Prior to commencement of works the Manager shall be informed in writing at least
one week in advance of the start date of the works authorised by this resource
consent.
6.
All personnel working on the site shall be made aware of and have access to the
contents of this consent document and associated management plans including the
erosion and sediment control plans relevant to the discrete stage of works.
7.
If works are to be abandoned on-site, adequate preventative and remedial measures
to control sediment discharge shall be undertaken, and those measures shall be
maintained for so long as necessary to prevent sediment discharge from the site. All
such measures shall be of a type, and to a standard, which are to the satisfaction of
the Manager.
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Preconstruction requirements
8.
Prior to commencement of works a pre-construction site meeting between AC and all
relevant parties, including the primary contractor shall be arranged. The meeting
shall discuss the detail of the methodology and shall ensure all relevant parties are
aware of and familiar with the necessary conditions of this consent.
9.
The following information shall be provided at the pre construction meeting:
i)
Expected timeframe for key stages of the works authorised under this consent;
ii)
Contact details of the site contractor, site stormwater engineer and certified
contaminated land consultant; and
iii)
Any resulting amendments to the environmental protection and erosion and
sediment control methodology as per condition 13 of this consent.
Advice Note: A failure to conduct a pre-construction meeting without AC notification may
result in AC enforcement action being taken.
10.
Chemical Treatment of all sediment retention ponds shall be required as a component
of the erosion and sediment control methodology. Prior to any earthworks
commencing the consent holder shall provide AC with a Chemical Treatment Plan, for
the written approval of the Manager. This written approval shall be obtained prior to
any earthworks commencing on the site. This plan shall outline the procedure and
methodologies for the sediment retention ponds and shall include as a minimum:
i.
Specific design details of flocculation system including rainfall activated and
batch dosing details;
ii.
Monitoring, maintenance (including post-storm) and contingency programme
(including a Record Sheet);
iii.
Details of optimum dosage (including assumptions);
iv.
Results of the initial flocculation trial;
v.
A spill contingency plan; and
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vi.
Details of the person or bodies whom will hold responsibility for long-term
maintenance of the flocculation treatment system and the organisational
structure which will support this structure.
11.
Any amendments to the Chemical Treatment Plan in condition 10 shall be approved
by the Manager, in writing, prior to implementation.
12.
That the consent holder shall ensure that the chemical treatment system is managed
in accordance with the Chemical Treatment Plan which has been approved by the
Manager, and as specified in Condition 10 and 11 above.
13.
That prior to any earthworks commencing on the site a final erosion and sediment
control plan and methodology for all areas of earthworks shall be submitted for written
approval of the Manager. This plan shall include, but not be limited to, details of
methodologies, temporary stabilisation with particular emphasis on staging and
sequencing of all earthworks, design of control measures and details of the
compliance with the conditions of this consent including chemical treatment (condition
10) and stormwater runoff management (conditions 27 and 28). Written approval of
this plan shall be obtained prior to any earthworks commencing on the site.
Seasonal restriction
14.
No vegetation removal or earthworks on the site be undertaken between 30 April and
1 October in any year, without the written approval of the Manager. Earthworks in
this regard refers to bulk earthworks (cut/fill/waste) associated with the site.
15.
Stabilisation is to be completed on a progressive basis and fully achieved by 30 April
in the year of bulk earthworks in accordance with measures detailed in TP90 and any
amendments to this document, unless a later date is approved in writing by the
Manager at least two weeks before 30 April.
Erosion and Sediment Control
16.
The site shall be staged such that no more than 5.0ha is exposed at any one time
unless otherwise approved in writing by the Manager. If more than 5.0 ha is
proposed to be exposed at any one time the consideration of approval will include:
Control measure efficiency;
Results of onsite and downstream environmental monitoring; and
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Contractor compliance.
17.
Erosion and sediment control measures shall be carried out in accordance with those
described in Land Use Consent: Sediment Control Application No. 38623, and the
accompanying erosion and sediment control and site remediation plans, supporting
documents and specifications specified in appendix A of the application for consent ,
received by AC on 15 October 2010, and as identified in these resource consent
conditions.
18.
Any amendments to the erosion and sediment control methodology must be approved
by the Manager in writing prior to any amendment being implemented.
19.
Erosion and sediment control measures shall be constructed and maintained in
accordance with TP90 (including amendments dated December 2007) and any
amendments to this document, except where a higher standard is detailed in the
documents referred to in conditions above, in which case the higher standard shall
apply.
20.
That any Decanting Earth Bunds to be implemented on the site, shall be sized to
provide 2m3 of storage for every 100m2 of contributing catchment. These bunds shall
have a minimum length to width ratio of 3:1 and have a level impoundment area, a
single perforated novacoil upstand outlet and a stabilised emergency spillway with
minimum width of 2m.
21.
That all Silt Fences and Super Silt Fences shall be constructed and maintained in
accordance with TP90 including the design detail provisions updated December
2007.
22.
That prior to the construction of Sediment Retention Ponds, Super Silt Fences or
other devices approved by the Manager, shall be constructed below the entire area of
the Sediment Retention Pond footprint.
23.
That al ‘cleanwater’ runoff from stabilised surfaces including catchment areas above
the site shall be diverted away from earthwork areas via a stabilised system, so as to
prevent surface erosion.
24.
That all perimeter controls in each discrete stage shall be operational before
earthworks begin in that discrete stage.
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25.
Prior to bulk earthworks in each discrete stage commencing, a certificate signed by
an appropriately qualified and experienced engineer to certify that the erosion and
sediment controls have been constructed in accordance with the erosion and
sediment control plan as specified in conditions above shall be submitted to the AC.
Certified controls shall include sediment retention ponds, earth bunds and silt fences.
The certification for these subsequent measures shall be supplied immediately upon
completion of construction of those measures. Information supplied if applicable shall
include:
a)
Contributing catchment area;
b)
Retention volume of structure (dead storage and live storage measured to the
top of the primary spillway);
c)
Shape of structure (dimensions of structure);
d)
Position of inlets/outlets; and
e)
Stabilisation of the structure.
26.
Notice shall be given to the Manager prior to any erosion and sediment control
measures being removed and completion of the operation.
27.
The discharge from the reticulated stormwater network shall temporarily bypass, in a
fully stabilised system, the proposed stormwater attenuation pond during works within
this pond until such time as the pond is completed and stabilised.
28.
The inlets to existing field tile and nova coil drains shall be isolated so that no
discharges from the proposed earthworks can enter into this existing drainage
system.
Monitoring
29.
The sediment and erosion controls at the site of the works shall be inspected on a
regular basis and within 24 hours of each rainstorm event that is likely to impair the
function or performance of the controls. A record shall be maintained of the date,
time and any maintenance undertaken in association with this condition which shall
be forwarded to the AC on request.
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5.3
ADVICE NOTES
1.
The AC shal be paid any compliance and monitoring cost on an ‘actual and
reasonable’ basis in accordance with Section 36 of the Resource Management Action
1991.
2.
The date of the commencement of this consent will be as determined by Section 116
of the Resource Management Act 1991, unless a later date is stated as a condition of
consent. The provisions of Section 116 of the Resource Management Act 1991 are
summarised in the covering letter issued with this consent.
3.
Section 124 of the Resource Management Act 1991 provides for the exercising of a
consent while applying for a new consent for the same activity.
4.
Pursuant to Section 125 of the Resource Management Act 1991, this resource
consent lapses on the expiry of five years after the date of commencement of this
consent unless the consent is given effect to or other criteria contained within Section
125 are met.
5.
Pursuant to Section 126 of the Resource Management Act 1991, if this resource
consent has been exercised, but is not subsequently exercised for a continuous
period of five years, the consent may be cancelled by the AC unless other criteria
contained within Section 126 are met.
6.
Form oils (separation agents) should be applied to any construction shutters in an
area removed from the watercourse such that any excess oil or spillage cannot be
washed to the receiving environment.
7.
When using concrete retarders, hardeners or accelerators near watercourses care is
required to ensure only the minimum amount of chemical is used to achieve the result
required and excess chemical is not flushed to the receiving environment.
8.
Pursuant to Section 136 and 137 of the Resource Management Act 1991, the
Consent Holder may transfer the consent to another party by notifying AC in writing of
their intention to do so. Unless the consent has lapsed, been surrendered or
cancelled, or transferred to another party, the Consent Holder is responsible for
compliance with all conditions of the consent for the duration of the consent.
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9.
Any streamworks associated with this proposal are not consented through this
consent and will be required to comply with the permitted activity rules of the
Proposed Auckland Regional Plan: Air, Land and Water or obtain consent.
10.
This consent is for the earthworks activity only. Any contaminated land shall be
managed in accordance with associated consents for that activity. If as a result of
that activity there are amendments to the earthworks areas as detailed within this
consent then a variation to this consent may be required subject to s127 of the RMA.
11.
That, in the event of archaeological site evidence (e.g. shells, middens, hangi or
ovens, pit depressions, defensive ditches, artifactual material or human bones) being
uncovered during construction, the consent holder shall ensure that operations shall
cease in the vicinity of the discovery and that the archaeologist, AC, is contacted so
that the appropriate action can be taken before any work may recommence there.
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5.4
APPROVAL UNDER DELEGATED AUTHORITY
5.4.1 Adequacy of Information
It is considered that the information submitted with the application is sufficiently
comprehensive to enable the consideration of the following matters on an informed
basis:
a)
The level of information provides a reasonable understanding of the nature
and scope of the proposed activity as it relates to the regional plan(s).
b)
The extent and scale of any adverse effects on the environment are able to be
assessed.
Report Prepared by:
Mike Martindale
Title:
Compliance Officer, Stormwater
Signed:
Date:
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Consent Granted as Recommended.
Acting under delegated authority and as recommended in section 5.1, Consent Number
38623 shall be granted subject to the conditions of consent specified in section 5.2.
Team Manager:
Roger Bannister
Title
Manager; Sediment and Contaminated Land
Signed:
Date:
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SECTION 6 – DEFINITIONS
AC:
means Auckland Council
ARP:C:
means Auckland Regional Plan: Coastal
ARP:SC:
means Auckland Regional Plan: Sediment Control
ARPS:
means Auckland Region Policy Statement
Commencement of Works:
Means the time when the earthworks the subject of this consent
are about to commence.
LGAAA:
means Local Government Amendment Act 2004
Manager:
Means the Manager, Consents and Compliance, Regulatory
Services, Auckland Council, their delegate, or an equivalent AC
management position
NZCPS:
means New Zealand Coastal Policy Statement 1994
PARP:ALW
means proposed Auckland Regional Plan: Air, Land and Water
RMA:
means
Resource
Management Act 1991
and further
amendments
Stabilised:
means an area inherently resistant to erosion such as rock
(excluding Sedimentary Rocks), or rendered resistant by the
application of aggregate, geotextile, vegetation or mulch. Where
vegetation is to be used on a surface that is not otherwise
resistant to erosion, the surface is considered stabilised once an
80% vegetation cover has been established. It is noted that
Hydroseeding as a standalone measure is not considered
stabilised in accordance with this definition.
TP90:
means ARC Technical Publication No. 90 Erosion and Sediment
Control Guidelines for Land Disturbing Activities in the Auckland
Region, March 1999 including updates dated December 2007.
Available on http://www.arc.govt.nz/plans/technical-publications
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APPENDIX A – Application Documents
Report:
Dated 15 October 2010, ‘
Whenuapai Airfield Upgrade Works- Earthworks
Assessment of Effects on the Environment ’. Prepared by: Beca Carter Hollings &
Ferner Ltd (Beca).
Dated 7 October 2010, ‘
Whenuapai Airfield Upgrade Works- Erosion and Sediment
Control Plan’. Prepared by: Beca Carter Hollings & Ferner Ltd (Beca).
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