SH1 Peka Peka to North Otaki: Roads of National ...
Transcript of SH1 Peka Peka to North Otaki: Roads of National ...
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Lev20 POWeNew
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raft Bulkan (BEC
eka Peka
epared for
ew Zealand
vel 9, PSIS HoBallance StreeBox 5084, La
ellington 6145w Zealand
788090
EarthwoCLMP)
a to Nort
Transport A
ouse et ambton Quay
orks Con
th Ōtaki
Agency
ntaminate
Expressw
ed Land
way Proj
7 FEB
Manage
ject
BRUARY 20
ement
013
Bulk Earthw
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Project
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This plan
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accepts
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URS Ne
consider
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works Contaminate
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no liability of
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ment Plan
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… ……………uzanne Lowenior Envirocientist
………………avid Whittyrincipal in Ch
………………Greg Haldane
enior Associ
New Zealan
sis that it rem
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Level 4160 LamWellingPO BoxNew Ze T: 64 4 F: 64 4
Date: ReferenStatus:
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the integrity
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ew Zealand
, Lambton Hmbton Quaygton 6011 x 3367, Wellealand
496 3750 496 3755
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013 01/E
this plan
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Bulk Earthw
42788090/R00
Table
1 Intro
1.
1.
1.
1.
1.
1.
1.
2 Sum
2.
2.
2.
2.
3 Mana
3.
3.
3.
3.
3.
3.
3.
3.
3.
3.
3.
3.
3.
3.
4 Limit
works Contaminate
01/E
of Conte
duction ...
.1 Backg
.2 The P
2.1 Main a
2.2 NIMT .
.3 Objec
.4 Scope
.5 Draft
mary of P
.1 Previo
.2 Works
.3 Works
.4 Sites
agement o
.1 Previo
.2 Conta
2.1 Identif
2.2 Comm
2.3 Initial
.3 Geneother
3.1 Asses
3.2 Conse
3.3 Site an
3.4 Excav
3.5 Stock
3.6 Sump
3.7 Offsite
3.8 Dispo
tations ....
ed Land Managem
ents
................
ground .....
Project ......
alignment ...
....................
ctives ........
e of Draft B
BECLMP F
otentially
ous Invest
s within th
s within Ma
of Potentia
of Contam
ously Ident
aminated S
fication .......
munication a
Actions .....
ral ProcedMaterials
ssment ........
enting .........
nd General
vation ..........
piling ..........
s, Undergro
e Transporta
sal of Conta
................
ment Plan
................
..................
..................
....................
....................
..................
BECLMP ...
Format ......
Contamin
igations ....
e Existing
arket Gard
al Concern
minated So
tified Poten
Sites Identif
....................
and notificat
....................
ures for Ma..................
....................
....................
Requiremen
....................
....................
ound Storag
ation of Con
aminated Ma
................
................
..................
..................
....................
....................
..................
..................
..................
nated Site
..................
KiwiRail C
en/Orchard
n for Conta
oil and Oth
ntially Con
fied During
....................
tions ...........
....................
anagement..................
....................
....................
nts ..............
....................
....................
ge Tanks, an
ntaminated
aterials and
................
................
..................
..................
....................
....................
..................
..................
..................
es .............
..................
Corridor .....
d Sites ......
minated La
her Materi
ntaminated
g Works ....
....................
....................
....................
t of Contam..................
....................
....................
....................
....................
....................
nd Septic Ta
Materials ....
d Liquids .....
................
................
..................
..................
....................
....................
..................
..................
..................
................
..................
..................
..................
and ............
als ...........
Sites ........
..................
....................
....................
....................
minated So..................
....................
....................
....................
....................
....................
anks ............
....................
....................
................
................
..................
..................
....................
....................
..................
..................
..................
................
..................
..................
..................
..................
................
..................
..................
....................
....................
....................
oil and ..................
....................
....................
....................
....................
....................
....................
....................
....................
................
.......... 1
........... 1
........... 2
............. 2
............. 2
........... 3
........... 4
........... 4
.......... 5
........... 5
........... 7
........... 7
........... 8
........ 17
......... 17
......... 18
........... 19
........... 19
........... 20
......... 20
........... 20
........... 21
........... 21
........... 21
........... 22
........... 22
........... 23
........... 23
........ 25
i
Bulk Earthw
Table o
42788090/R00
Table
Table 2-
Table 2-
Table 2-
Table 2-
Table 3-
Table 3-
Table 3-
Figure
Figure 1
Figure 2
Figure 2
Figure 2
Figure 2
Figure 2
Figure 2
works Contaminate
of Contents
01/E
s
1 Potent
2 Summ
3 Locatio
4 Summ
1 IndicatPotent
2 SummProjec
3 Summ
es
-1 LocatioCorrido
-1 Sites o
-2 Sites o
-3 Sites o
-4 Sites o
-5 Sites o
-6 Sites o
ed Land Managem
s
tially Contam
mary of Findin
on of Market
mary of Sites
tive Contamitially Contam
mary of ConstctCorridor .....
mary of Poten
on of Peka Por. ...............
of Interest, 1
of Interest, 2
of Interest, 3
of Interest, 4
of Interest, 5
of Interest, 6
ment Plan
minated Sites
ngs of the Sit
t Garden/Orc
of Potential C
nated Materminated Sites
tituents of Po....................
ntially Releva
Peka to North....................
of 6 .............
of 6 .............
of 6 .............
of 6 .............
of 6 .............
of 6 .............
s Identified w
te-Specific P
chard Sites w
Concern with
rial Managems ...................
otential Conc....................
ant NES1 Reg
h Ōtaki expre....................
....................
....................
....................
....................
....................
....................
within the Des
Phase 1 CLAs
within Design
hin the Desig
ment Procedu...................
cern for Som...................
gulations .....
essway withi...................
...................
...................
...................
...................
...................
...................
signated Proj
s ..................
nated Project
gnated Proje
ures for Prev....................
e Potential A....................
....................
n the Welling....................
....................
....................
....................
....................
....................
....................
jectCorridor
...................
tCorridor .....
ctCorridor ...
viously Identi...................
Activities with...................
...................
gton Norther...................
...................
...................
...................
...................
...................
...................
............ 5
............ 6
............ 8
............ 9
ified .......... 17
hin the .......... 18
.......... 21
rn ............ 3
.......... 10
.......... 11
.......... 12
.......... 13
.......... 14
.......... 15
Bulk Earthw
42788090/R00
1Introd
This dra
prepared
This dra
soil and
construc
Road of
This dra
specific
detail
intrus
a con
and c
Based o
BECLMP
could be
describe
condition
by NZTA
This dra
disturban
(Kāpiti C
would be
likely HA
triggers)
NZTA an
1.1 The New
applicati
section
approxia
1.2 km
undertak
Cons
Reali
Asso
The Pro
Environm
1 ResourceHuman He2 Current e
works Contaminate
01/E
duction
aft Bulk Ear
d by URS Ne
aft BECLMP
d other con
ction of the P
National Sig
ft BECLMP
information o
led design;
sive contamin
ntractor has b
construction
n the current
P provides a
e reasonably
ed above is a
ns. It is antic
A or its agent
aft BECLMP
nce and othe
Coast Distric
e required u
AIL sites wh
.
nd its agents
Backgw Zealand T
ons for reso
of the Wel
amtly
of the North
ken on behal
struction of th
gnment of pa
ciated local r
oject is a p
mental Prote
e Management ealth) Regulatioedition, Ministry
ed Land Managem
rthworks Co
ew Zealand L
provides a f
ntaminated
Peka Peka to
gnificance (R
would be fin
once the follo
nated land in
been selecte
methodologi
t and inferred
ppropriate m
encountered
available, this
cipated that t
ts.
P also provi
er activities r
ct Council), u
nder the NE
ere certain c
s would be re
round Transport A
ource consen
lington Nort
h Island Ma
lf of KiwiRail
he main road
art of the NIM
road connec
roposal of
ction Author
(National Environs 2011. for the Environ
ment Plan
ntaminated
Limited (URS
framework a
materials/str
o North Ōtak
RoNS) Projec
nalised by NZ
owing has be
nvestigations
ed;
es have bee
d historic lan
management
d during cons
s BECLMP is
this draft BEC
ides guidan
related to ma
under the Na
ES for certain
criteria are t
esponsible fo
Agency (the
nts for the co
thern Corrid
ain Trunk (N
. In this app
d alignment;
MT; and
tions.
national sign
ity (EPA).
onmental Stand
ment
Land Mana
S) for use by
and general p
ructures in
ki Expresswa
ct.
ZTA or its ag
een complete
s (if required)
en confirmed
nd use within
and control
struction. U
s sufficiently
CLMP would
ce for obta
anagement o
ational Envir
n Hazardous
triggered (e.g
or implement
NZTA) is lo
onstruction o
dor RoNS P
NIMT) throug
lication, “the
nificance an
dard for Assessi
agement Pla
the New Ze
procedures f
ground tha
ay section of
gents (e.g., t
ed:
);
.
n this corridor
procedures f
Until such tim
broad to cov
d be updated
aining conse
of contamina
ronmental S
s Activities an
g., soil distu
ation of this
odging a No
of the Peka
Project. Th
gh Ōtaki is a
Project” refe
nd the matte
ng and Managin
n (BECLMP
aland Transp
for managem
at may be
the Wellingt
the contracto
r it is conside
for contamin
e as the spe
ver reasonab
, as required
ent, as and
ated land, fro
tandards1 (N
nd Industries
rbance over
BECLMP.
otice of Req
Peka to Nor
e NoR for
also being s
ers to:
ers have be
ng Contaminant
P or plan) h
port Agency
ment of cont
encountere
ton Northern
or) with site
ered that this
ated land iss
ecific informa
bly foreseen
d, during the
if required,
om the local
NES). Such
s List (HAIL)
r certain are
quirement (N
rth Ōtaki Exp
the re-align
sought, and
een lodged
ts in Soil to Pro
1
has been
(NZTA).
aminated
d during
n Corridor
and area
s draft
sues that
ation
works
, for soil
authority
h consent
)2 sites or
a/volume
NoR) and
pressway
nment of
is being
with the
tect
1
Bulk Earthworks Contaminated Land Management Plan
1 Introduction
2 42788090/R001/E
This draft BECLMP provides procedures for management of contaminated soil and other materials
potentially present in ground that may be disturbed or require removal to complete the Project.
1.2 The Project
1.2.1 Main alignment
The Project is one of eight sections of the Wellington Northern Corridor RoNS that runs from
Wellington Airport to Levin. The completion of the Wellington Northern Corridor RoNS will assist
regional and national economic growth. . The location of the Project in the overall scheme of this
corridor is illustrated in Figure 1-1 below.
The NZTA proposes to designate land and obtain the resource consents to construct, operate and
maintain the Peka Peka to North Ōtaki section of the Wellington Northern Corridor RoNS. This Project
extends from Te Kowhai Road in the south to Taylors Road just north of Ōtaki, an approximate
distance of 13 km.
The Peka Peka to North Ōtaki Expressway section of the Wellington Northern Corridor RoNS will
provide an expressway with two lanes of traffic in each direction. Connections to local roads, new
local roads and access points over the expressway to maintain safe connectivity between the western
and eastern sides of the expressway are also proposed as part of the Project. There is an additional
crossing of the Ōtaki River proposed as part of the Project, along with crossings of other watercourses
throughout the Project length.
On completion, it is proposed that the expressway becomes State Highway 1 (SH1) and that the
existing SH1 between Peka Peka and North Ōtaki become a local road, allowing for the separation of
local traffic. It is noted that the power to declare roads to be State Highways or revoke status resides
with the Chief Executive of the Ministry of Transport, not with the NZTA.
1.2.2 NIMT
KiwiRail proposes to designate land in the Kāpiti Coast District Plan for the construction, operation and
maintenance of a re-aligned section of the North Island Main Trunk (NIMT) through Ōtaki.
Bulk Earthw
1 Introd
42788090/R00
Figure 1-
1.3 The obj
manage
ground t
This dra
lead pai
buildings
would b
process,
works Contaminate
duction
01/E
-1 Location
Objectective of th
ment of con
that may be d
aft BECLMP
int, polychlo
s or other a
e covered in
, as and if re
ed Land Managem
n of Peka Pek
tives his draft BE
taminated so
disturbed or
does not co
orinated biph
bove-ground
n manageme
quired.
ment Plan
ka to North Ō
ECLMP is to
oil and other
require remo
over contami
henyls conta
d structures
ent plans de
Ōtaki expressw
o provide i
r contaminat
oval to comp
nated, dang
aining ballas
within the d
eveloped in
way within th
ndicative m
ted materials
plete the Proj
erous or haz
sts and tran
designated P
support of t
he Wellington
ethods and
s/structures
ect.
zardous mat
nsformers) p
Project corrid
the demolitio
n Northern Co
procedures
potentially p
terials (i.e., a
potentially p
dor. These
on (building)
3
orridor.
s for the
present in
asbestos,
resent in
materials
) consent
3
Bulk Earthworks Contaminated Land Management Plan
1 Introduction
4 42788090/R001/E
1.4 Scope of Draft BECLMP The scope of this draft BECLMMP includes the following:
Summary of earlier Phase 1 environmental assessments undertaken within the designated Project
corridor
Indicative management procedures for handling and stockpiling of contaminated soils
General procedures for site worker health and safety related to contaminated soil
Indicative procedures should unexpected contaminated soil be encountered during the construction
works
A basis for assessing whether contaminated soils may remain or should be removed from the site.
1.5 Draft BECLMP Format The draft BECLMP has been divided into sections as follows:
Section 1 - Introduction
Section 2 – Summary of Potentially Contaminated Sites
Section 3 – Management of Contaminated Soil and Other Materials
Bulk Earthw
42788090/R00
2Summ
2.1 Potentia
by URS
Project c
Ōtaki – P
Based o
contamin
of these
Table 2-1
PropertyŌtaki StaOff ArthurŌtaki SidOff ArthurWinstone0 SH1 SoBridge Lo3 Ōtaki GMary Cre701 SH1,
38 Otaki GG W & J
36 Otaki GMarbella
34 Otaki GKilbirnie ALtd
9 Old HauF R & P V
36 SuttonM E J Co
37 SuttonAvatar EsKiwiRail CVarious apart of thecorridor
A site sp
the portio
specific
manage
3 Phase 1 December
works Contaminate
01/E
mary of P
Previolly contamin
during Pha
corridor and
Phase 1 Con
on the corrido
nation are su
sites and the
1 Potentia
y Details ation r Street, Ōtakiings r Street, Ōtaki
e Aggregates outh, Ōtaki odge Gorge Rd, Ōtakest , Te Horo
Gorge Road E Elliott
Gorge Road Lodge Ltd
Gorge Road Animal Health
utere Road V Bertelsen Lt
n Road oolen
n Road, Te Hostate Ltd Corridor areas along the designated P
pecific Phase
on of these s
Phase 1 C
ment measu
Environmental A
r 2012.
ed Land Managem
Potential
us Investated sites w
se 1 contam
for specific s
ntaminated L
or overview a
ummarised in
e designated
ally Contamin
i
i
ki
Properties
td
oro
e northern Project
e 1 CLA was
sites within th
CLA s is pro
ures for these
Assessment – 3
ment Plan
ly Conta
tigationswithin the Pr
minated land
sites. These
and Assessm
assessment,
n Table 2-1.
d Project corr
nated Sites Id
Reason IdeHistoric RailwAdjacent to raBuilding/strucPiles of rubblHeavy equipm
Storage cont(AST) presenStorage of fu
Market garde
Market garde
Market garde
Market garde
Market garde
Market garde
Historic and c
s undertaken
he designate
ovided in Ta
e sites are pr
3 Otaki Gorge R
aminated
roject corrido
d assessmen
e assessmen
mentError! Book
, sites consid
Refer to Fi
ridor.
dentified with
entified way Station, crail lines. cture foundatile/debris obsement and the
tainers, warehnt on site. Busuel.
en/orchard
en/orchard
en/orchard
en/orchard
en/orchard
en/orchard
current use as
n at each of
ed Project co
able 2-2. G
rovided in Se
Road, Otaki, 29
d Sites
or to be desi
nts (CLAs) c
nts are documkmark not defined
dered to hav
gure 2-1 thr
in the Design
ar parks, land
ons observederved. Adjaceprocessing of
house building ses and haula
s railroad trans
the five sites
orridor3. A su
General and
ection 3.
March 2012, Pa
gnated were
completed as
mented in thed. (Phase 1 C
e the highes
rough Figure
nated Project
scaped green
. ent to rail linesf aggregates
and an aboveage vehicles w
sport corridor
s identified b
ummary of th
site-specific
attle Delamore P
e previously
s an overvie
e Peka Peka
CLA).
st potential fo
e 2-6 for the
t Corridor
ns and railway
s.
e ground storawere parked on
below with a
he findings of
c contamina
Partners, Ltd. a
5
2
identified
ew of the
a to North
or ground
locations
sidings.
age tank n the site.
focus on
f the site-
ated land
nd URS
5
2
Bulk Earthworks Contaminated Land Management Plan
2 Summary of Potentially Contaminated Sites
6 42788090/R001/E
Table 2-2 Summary of Findings of the Site-Specific Phase 1 CLAs
Site Findings of Phase 1 CLAs Otaki Station & Sidings There is potential for ground contamination associated with the railway current and
historic maintenance and operational activities on the Ōtaki Station and Sidings properties. Staining of rail ballast around the railway tracks was observed during the site walkover, but no other evidence of surface soil contamination. Contaminants including petroleum hydrocarbons and metals are expected to be present. Records indicate the presence of a gas house; however the location of the gas house is unknown. The exact nature and use of the gas house has not been determined. Former and current buildings/structures within the boundaries of the properties included a goods shed, amenities block, Otaki Station building, men's toilets, septic tank and other undefined structures. Other potential sources of historic contamination were identified along the rail corridor to the south west outside the confines of the Otaki Station and Sidings properties. These included potential stock holding yards, a train turn-table area, potential wood storage area and associated buildings. Based on the potential HAIL activities identified at the site the following potential contaminants of concern maybe present within the proposed Project corridor: hydrocarbons, PAHs, heavy metals, solvents, creosote, metal and asbestos particulates associated with braking, fuel (diesel), lubricating oils, grease associated with spills/leaking, arsenic, organochlorines (e.g. aldrin, dieldrin, DDT4, lindane), organophosphates, carbamates, synthetic pyrethroids, biological hazards (bacteria, viruses) and PCP.
Winstone Aggregates No potential sources of ground contamination were identified within the designated Project corridor. However, sources of potential ground contamination were identified on the Winstone Aggregates site, immediately west of the designated Project corridor, and include:
storage of grease, oil and paint;
asbestos on the inner wall cladding of the old store;
three waste oil aboveground storage tanks; one aboveground diesel storage tank; location of former underground diesel storage tank;
septic tanks; and,
an electrical transformer.
Mary Crest Potential sources of ground contamination within the designated Project corridor include:
Former farm operations on the southwest portion of the property, including
foundations of former farm structures and an uncharacterised ground depression.
Potential for a septic tank located within the vicinity of the dwelling at the entrance
to the Mary Crest site.
There is also potential for ground contamination outside the designated Project area but within the confines of the Mary Crest site, including underground storage tanks (locations unconfirmed) and former farm operations. Based on the potential HAIL activities identified at the site the following potential contaminants of concern maybe present within the proposed Project corridor: heavy metals, wide range of organic agrichemicals including organochlorine pesticides,
4 dichlorodiphenyltrichloroethane
Bulk Earthw
2 Summ
42788090/R00
Bridge Lo
Works w
Section
2.2 Works a
extent).
potential
includes
creosote
spillage/
works w
2.3
Works a
for and T
garden a
potential
and a w
organoc
works w
5 Users’ GuApril 2012
works Contaminate
mary of Pot
01/E
odge3
within the
2.2 and 2.3,
Works are proposed
Based on
l for land con
metal and a
e, phenols,
/leaks. Indic
ithin the exis
Works
are proposed
Table 2-3 fo
and orchard
l concern ass
wide range
hlorines5. In
ithin the mar
uide National E, Ministry for the
ed Land Managem
tentially Co
organophopyrethroidorganic coorganochlBTEX, PAbiological Five potenProject co
one un
one ab
three sBased on contaminahydrocarbif waste oiorganic co
KiwiRail cor
, respectively
within thd within the
the nature o
ntamination e
asbestos par
polycyclic
cative gener
sting KiwiRai
within M
d within mark
or locations).
sites it is in
sociated with
of organic
ndicative gen
rket garden/o
Environmental Se Environment.
ment Plan
ontaminate
osphate pestics; compounds
ompounds inclorines (e.g., e
AHs, and solvehazards (bact
ntial sources orridor:
nderground sto
bove ground ta
septic tanks. the potential H
ants of concerons including l handled; bio
ompounds, an
rridor and
y.
he Existinexisting Kiw
of activities t
exists. Con
rticulates ass
aromatic hy
ral and site-
l corridor are
Market Ga
ket garden/or
. Based on
nferred that
h these activ
compounds
neral and sit
orchard sites
tandard for Ass
ed Sites
cides, herbicids maybe mixeluding acidic h
endosulfan on ents; lead and teria, viruses),of ground cont
orage tank po
ank containing
HAIL activitiesrn maybe pres
BTEX, PAHsological hazard
d solvents.
within mark
ng KiwiRawiRail corrido
that typically
nstituents of
sociated with
ydrocarbons
-specific con
e provided in
rden/Orc
rchard sites
the nature o
potential for
vities include
s, including
te-specific co
s are provide
sessing and Man
des, fungicidesd with diesel bherbicides, orggolf and bowlother metals,
, and semi- votamination we
otentially conta
g diesel; and
s identified at tsent within the , and solvents
ds (bacteria, v
ket garden/o
ail Corridor (refer Figu
y occur withi
potential con
h braking, fue
(PAHs), a
ntaminated
Section 3.
chard Site
(refer Figure
of activities
r land conta
the following
acidic herb
ontaminated
d in Section
naging Contami
s, carbamatesbefore sprayinganophosphating greens); hparticularly if
olatile organic re noted within
aining kerosen
the site the folproposed Pro
s; lead and othiruses), metals
orchard site
or ure 2-1 and
in rail corrid
ncern associ
el (diesel) sp
nd lubricatin
land manag
es
e 2-1, Figure
that typically
mination exi
g: arsenic, le
bicides, orga
land manag
3.
inants in Soil to
s, and synthetng; wide rangetes, and hydrocarbons f waste oil hancompounds. n the designa
ne;
llowing potentoject corridor: her metals, pas, PAHs, sem
es are discu
d 2-2 for app
ors it is infe
iated with th
pills/leaking,
ng oils and
gement meas
e 2-2 and Fi
y occur withi
ists. Consti
ead, copper,
anophospha
gement mea
Protect Human
7
ic e of
including ndled;
ted
tial
articularly mi- volatile
ussed in
proximate
erred that
is activity
solvents,
d grease
sures for
igure 2-5
n market
ituents of
mercury;
ates, and
asures for
n Health,
7
Bulk Earthworks Contaminated Land Management Plan
2 Summary of Potentially Contaminated Sites
8 42788090/R001/E
Table 2-3 Location of Market Garden/Orchard Sites within Designated Project Corridor
Map Reference Property Details
99 38 Otaki Gorge Road
G W & J E Elliott
100 36 Otaki Gorge Road
Marbella Lodge Ltd
101 34 Otaki Gorge Road
Kilbirnie Animal Health Properties Ltd
105 9 Old Hautere Road
F R & P V Bertelsen Ltd
165 36 Sutton Road
M E J Coolen
170 37 Sutton Road, Te Horo
Avatar Estate Ltd
2.4 Sites of Potential Concern for Contaminated Land In addition to the sites/areas identified above additional sites were identified within the designated
Project corridor in the Phase 1 CLA as sites of potential concern for contaminated land. A summary of
these sites is provided in Table 2-4 with a cross reference to the property ownership reference
numbers shown on Figure 2-1 through Figure 2-6. These sites are inferred to have lower risk for land
contamination than those identified above. Specific procedures for management of contaminated land
have not been developed for these sites; however, they would be reviewed and/or assessed prior to
initiating physical works within these sites/areas and general/site-specific management measures
implemented should contaminated land or materials be discovered (refer Section 3).
Bulk Earthw
2 Summ
42788090/R00
Table 2-4
Map Ref
7
9
55/66
56
67/68
125
122/132
186
195
works Contaminate
mary of Pot
01/E
4 Summar
ference
ed Land Managem
tentially Co
ry of Sites of
Property
SH1 SouthD H McLa
291 State O D & C I
0 Main HigKapiti Coa
230 SH1/2D H McLa
263 SH1 A E CoulsCA Wahrli
10 Te HorTe Horo Duncan PLtd
3-5 SchooMaori Trus
635 SH 1,Kotuku CoHealth MaCompany
18-20 Te KM P & R R
ment Plan
ontaminate
Potential Co
Details
h, Otaki ren
Highway 1, OMihaila
ghway, Otakiast District Cou
29 Rahui Rdren
on & ich
ro Beach Rd,
artition Installa
ol Rd, Te Horostee
Te Horo onsulting and anagement Ltd
Kowhai Rd R Trotter
ed Sites
oncern within
RatioConc
Area ident
Otaki Possland/
uncil PropArea aeria
Possland/
Vehicof disphoto
ations
Possphoto
o PropArea topogphoto
PropDistuphoto
Area topogphoto
the Designa
onale for Inccern
of unusual totified on aerial
sible industrial /stressed vege
erty Record (nof disturbed l
al photograph
sible industrial /stressed vege
cle storage, posturbed land/sograph
sible industrial ograph
erty Record (nof disturbed l
graphy (possibograph
erty Record (nurbed land/streograph
of disturbed lgraphy (possibograph
ted Project C
lusion as Site
pography (posphotograph
buildings andetation identifie
non-residentiaand/stressed v
buildings andetation identifie
ossible industrtressed veget
buildings iden
non-residentiaand/stressed vble sheep dip)
non-residentiaessed vegetati
and/stressed vble sheep dip)
Corridor
te of Potentia
ssible sheep d
d area of distued on aerial p
al/individual owvegetation ide
d area of distued on aerial p
rial buildings, tation identifie
ntified on aeria
al/individual owvegetation an) identified on
al/individual owion identified o
vegetation an) identified on
9
al
dip)
rbed hotograph
wnership), entified on
rbed hotograph
and area d on aerial
al
wnership),, d unusual aerial
wnership), on aerial
d unusual aerial
9
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(67/
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3.1 Table 3
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Table 3-
Table 3-1
Site Otaki Sta
Winstone
Mary Cre
Bridge Lo
KiwiRail a
works Contaminate
01/E
gement
d below are i
pated that th
design has
-specific data
Previo-1 summaris
d potentially
ed for mana
-1.
1 IndicativPotentia
ation & Sidings
e Aggregates
est
odge
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ed Land Managem
of Conta
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ve Contaminaally Contamin
Proposeds Assess
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aminated
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ated Material nated Sites
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s depression aminated mater
n Territorial Au
ve above grou
ve contents of
ve undergroun required.
se offsite undeitable to remaoposed works)
ve contents of
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r managemen
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nd contaminat
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17
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3
Bulk Earthworks Contaminated Land Management Plan
3 Management of Contaminated Soil and Other Materials
18 42788090/R001/E
Site Proposed Contaminated Material Management Procedures Market Garden Sites Assess soil that may be impacted by the proposed works.
Obtain Territorial Authority consents as required.
Material (including contaminated material) assessed as suitable may be left in place.
Remove and dispose of contaminated material offsite as determined by the assessment or as required by the proposed works.
3.2 Contaminated Sites Identified During Works Previously unidentified contaminated soils or other materials may be discovered during the works.
Given the nature of the Project corridor it is anticipated that such discoveries would most likely be
associated with the following:
Farm tips and offal pits
Storage, handling and use of herbicides and pesticides
Septic tanks
Heating oil and/or fuel storage in underground tanks
Sheep dips
Market gardens and orchards
The Users’ Guide National Environmental Standard for Assessing and Managing Contaminants in Soil
to Protect Human Health6 provides a list of constituents of potential concern associated with specific
activities and industries. An excerpt from this list is provided in Table 3-2.
Table 3-2 Summary of Constituents of Potential Concern for Some Potential Activities within the Project Corridor
Activity/Industry Constituents of Potential Concern
Agrichemicals including commercial premises used byspray contractors for filling, storing or washing out tanks for agrichemical application
Arsenic, lead, copper; wide range of organic agrichemicals including organochlorine pesticides, organophosphate pesticides, herbicides, fungicides, carbamates, and synthetic pyrethroids; compounds maybe mixed with diesel before spraying
Livestock dip or spray race operations Arsenic, organochlorines (e.g., aldrin, dieldrin, DDT7, lindane) and organophosphates, carbamates, and synthetic pyrethroids
Persistent pesticide bulk storage or use including sport turfs, market gardens, orchards, glass houses or spray sheds
Arsenic, lead, copper, mercury; wide range of organic compounds including acidic herbicides, organophosphates, and organochlorines (e.g., endosulfan on golf and bowling greens)
Petroleum or petrochemical industries including a petroleum depot, terminal, blending plant or refinery, or facilities for recovery, reprocessing or recycling petroleum-based materials, or bulk storage of petroleum or petrochemicals above
Hydrocarbons including BTEX8, PAHs9, and solvents; lead and other metals, particularly if waste oil handled
6 Ministry for the Environment, April 2012 7 dichlorodiphenyltrichloroethane 8 Benzene, toluene, ethylbenzene and xylenes. 9 Polycyclic aromatic hydrocarbons
Bulk Earthw
3 Mana
42788090/R00
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1
10 For photSheep-dip
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elow ground way yards incshops, refues te disposal toolids have be
ase 1 CLA i
l for ground
Table 2-4).
physical wo
Identifi
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rous, stained
ence of anth
es.
ms, sumps, o
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rground stor
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arm tips).
struction or d
Commu
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ken as soon
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scovery is as
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tographs and exSites: A guide
ed Land Managem
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cluding goodslling facilities
o land (exclueen used as s
dentifies a n
contaminatio
These sites/
orks in those
cation
ated soil or o
be identified
or discolour
ropogenic fil
r storage tan
r access port
rage or septic
ion.
ids in soil or
ence of trenc
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unication
d notification
as practica
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upervisor, an
ssessed as p
local emerge
xamples, refer tfor local authori
ment Plan
ated Soil a
s-handling yas or maintena
ding where soil condition
number of s
on based on
/areas shall
areas.
other materia
by the follow
red soils.
l materials, s
nks.
ts, vents, lea
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on water.
ches, pits, co
ke structures)
unnatural dep
bris.
and notifi
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nd the Engin
presenting an
ency service
o Appendix 10 oities, Ministry fo
and Other M
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Hycre
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ites within th
n desktop inf
be reviewed
als may be e
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such as hous
ach fields or o
oncrete pads
).10
pressions ind
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cordance wit
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n imminent h
es shall be no
of Identifying, Inor the Environme
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nstituents of
drocarbons ieosote/pheno
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he designate
formation (re
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sehold rubbis
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NZTA Projec
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ncluding PAols, and meta
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ed Project c
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and assesse
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sh, offal wast
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lling 111.
d Managing Risk
oncern
AHs, solventsals.
– biological hPAHs, semi-
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corridor that
e 2-1 throug
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works. Such
tes, or farm t
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ork, baths, fe
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9
Bulk Earthworks Contaminated Land Management Plan
3 Management of Contaminated Soil and Other Materials
20 42788090/R001/E
3.2.3 Initial Actions
Upon discovery of potential contaminated soil or other material, the following preliminary measures
shall be undertaken:
Assess potential immediate hazards, if unsafe move away, and upwind from area
Notification of potential discovery as described above
(If assessed to be safe, the following shall be undertaken) Make area and works in progress safe
Stop works in and adjacent to the inferred area of contaminated soil or materials
Secure/isolate area
Implement temporary measures to minimise transport of potential contaminants offsite
3.3 General Procedures for Management of Contaminated Soil and other Materials
Indicative general procedures for management of contaminated soil and other materials are provided
below. It is anticipated that these procedures would be reviewed and updated as appropriate, when
site/area and contaminant specific details and the proposed construction methodologies are known.
3.3.1 Assessment
An assessment of the potentially contaminated soil or other material shall be undertaken by a suitably
qualified and experienced practitioner11. Such assessment shall be based on the following, as
appropriate:
The hierarchy set out in the Ministry for the Environment “Contaminated Land Management
Guidelines No. 2”, 2011
Ministry for the Environment “Guidelines for Assessing and Managing Petroleum Hydrocarbon
Contaminated Sites in New Zealand”, Revised 2011
Resource Management (National Environmental Standard for Assessing and Managing
Contaminants in Soil to Protect Human Health) Regulations 2011 (NES)
Contaminated Land Management Guidelines No.5: Site Investigation and Analysis of Soils, Ministry
for the Environment (2011)
Identifying, Investigating and Managing Risks Associated with Former Sheep-dip Sites: A guide for
local authorities, Ministry for the Environment
Soils or other materials assessed as not suitable to remain in situ, based on the proposed landuse and
the proposed works, shall be removed offsite for treatment and/or disposal.
It is anticipated that appropriate assessment may conclude that contaminated soils and other
materials may be left in place. It is anticipated that covering/capping of ground contamination, as
would occur with the road construction associated with the Project, may be the most practical and
suitable solution for mitigating effects of ground contamination.
It is also anticipated that some soil and/or other materials assessed as suitable to remain onsite may
be removed for offsite treatment and disposal due to conflicts with the proposed Projector because
they are geotechnically unsuitable.
11As defined in the User’s Guide, National Environmental Standard for Assessing and Managing Contaminants in Soil to Protect Human Health, Ministry for the Environment, April 2012.
Bulk Earthw
3 Mana
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3.3.2
Consent
ground d
of potent
Table 3-3
Does the
Is the lan
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Removing
Sampling
Disturbing
Notificat
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3.3.3
The follo
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3.3.4
Contami
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To the e
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Estab
these
Segre
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01/E
Consen
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disturbance a
tially relevan
3 Summar
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ivity covered b
Activity com
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g soil
g soil
ion, assessm
Site an
owing measu
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A and Depart
Safety in Em
aminants of p
ng, mitigatio
ate or amend
sures to mini
ement measu
onment, incl
to leaving th
rol/limit acces
Excava
inated soils
d to be not s
extent practic
minated or p
blish exclusio
e areas, as re
egate contam
ed Land Managem
Contamina
nting
obtained fro
and/or soil re
nt regulations
ry of Potentia
to this site?
the NES?
by the NES?
mply with the
fuel storage s
ment, validat
d General
ures shall be
n:
lement a site
tment of Lab
ployment Ac
potential con
n and monito
d the constru
mise dischar
ures to prote
uding erosio
e area of co
ss to the site
ation
may be sui
suitable to re
cable the foll
potentially co
on zones aro
equired.
minated soil
ment Plan
ated Soil a
om the Terri
emoval/reme
s is provided
ally Relevant
permitted ac
system
ion sampling
Requirem
e employed
e/area-specif
bour/Occupat
ct 1992 as am
cern and the
oring measur
ction environ
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ct health and
n and sedim
ncern (includ
e/area.
itable to be
emain on sit
owing meas
ntaminated s
ound excavat
based on vis
and Other M
itorial Autho
ediation activ
in Table 3-3
NES1 Regula
Regu
Regu
ctivity conditio
Regu
Regu
Regu
g and reporti
ments
when works
fic specific he
tional Safety
mended. Th
eir potential h
res.
nmental man
minants to th
d safety and
ment manage
ding wheel/tr
left on site
te, it shall be
sures shall b
soil:
tion areas, c
sual and/or o
Materials
ority for fuel
vities as requ
3.
ations
ulation 5(7) thr
ulation 5(2) thr
ons?
ulation 8(1)
ulation 8(2)
ulation 8(3)
ng shall be c
s may result
ealth and saf
y and Health
e health and
health and sa
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minimise dis
ment control
rack cleaning
, but when
e excavated
e implement
clearly deline
odour charac
system rem
uired under th
rough 5(9) and
rough 5(6)
conducted in
in direct or
fety plan in a
requirement
safety plan
afety hazards
an to include
ent.
scharge of co
ls, decontam
g), and secur
contaminate
and remove
ted during ex
ating, isolatin
teristics.
moval, soil s
he NES. A
d Regulation 6
n accordance
r indirect exp
accordance w
ts, and the H
shall identify
s and approp
site/area-sp
ontaminants
mination of eq
rity measures
ed soil or m
ed offsite for
xcavation or
ng and secu
21
sampling,
summary
6
e with the
posure to
with
ealth
y
priate
pecific
to the
quipment
s to
material is
disposal.
stripping
ring
Bulk Earthworks Contaminated Land Management Plan
3 Management of Contaminated Soil and Other Materials
22 42788090/R001/E
Allow wet soil to drain back to the excavation prior to stockpiling or loading for offsite disposal.
Minimise the duration of open excavations.
Minimise stormwater runon by diversion around excavation areas.
Grading or bunding of the area immediately adjacent to the excavation area to promote local
drainage back to the excavation.
Provision of erosion and sediment management controls, such as bunds and silt fencing around
excavation areas.
Removal of groundwater or water accumulated in the excavation for appropriate offsite disposal as
required to complete and backfill the excavation.
3.3.5 Stockpiling
During the works temporary stockpiling of contaminated or potentially contaminated soil may be
required for assessment purposes and/or for staging prior to offsite disposal.
To the extent practicable the following measures shall be implemented during stockpiling of
contaminated or potentially contaminated soils:
Segregation of contaminated/potentially contaminated soils from overburden or other soils inferred
to be not contaminated.
Location of stockpiles in areas generally no subject to stormwater runon and remote or isolated
from sensitive receptors, such as watercourses, drains, wetlands, soakage areas, livestock, and
the general public.
Minimising the duration of stockpiling.
Minimising the height of stockpiles to approximately 4 metres and providing a stable stockpile
slope.
Covering and/or wetting of stockpiles to reduce the potential for dust and odour effects.
Location of stockpile down prevailing wind from public receptors.
Minimise stormwater runon by diversion around excavation areas
Provision of erosion and sediment management controls, such as silt fencing around stockpiles.
3.3.6 Sumps, Underground Storage Tanks, and Septic Tanks
Sumps or septic tanks conflicting with proposed works shall be abandoned in place or excavated and
removed for offsite disposal by an appropriately qualified contractor.
Underground storage tanks used for the storage of petroleum and other substances shall be removed
in accordance with the following codes of practice, as appropriate:
Code of Practice for the Design, Installation and Operation of Underground Petroleum Storage Systems, Occupational Safety and Health Service, Department of Labour, May 1992.
Code of Practice for Disused Below Ground Stationary Tanks on Farms (approved under the
Hazardous Substances and New Organisms [HSNO] Act 1996), May 2007
Prior to removal or abandonment, liquid/sludge contents shall be removed for offsite disposal.
Bedding material and adjacent soil shall be removed for offsite disposal if assessed as not suitable to
remain on site. Hotworks, if required, shall be completed in accordance with the above by a suitably
qualified contractor.
Bulk Earthw
3 Mana
42788090/R00
3.3.7
Transpo
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following
Land
Haza
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3.3.8
Contami
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Code
Occu
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01/E
Offsite
rtation of co
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Transport R
ardous Subst
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upational Saf
measures out
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Dispos
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Transport
ontaminated
ulations, guid
Rule 45001/1
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for the Trans
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and other co
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for the Trans
fety and Hea
characterisa
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ated Soil a
tation of C
soil, materia
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(Land Trans
New Organis
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m requireme
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ads
aterial for offtioner.
taminated
ontaminated
terials. Cha
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on and Analy
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ks shall be d
sport and Dis
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ation for all w
and Other M
Contamina
al and liquid
d standards
sport Rule: D
ms Act 1996
sposal of Pe
Department
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d solid mate
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methods outl
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erated durin
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system cons
at a facility c
disposed of in
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Department
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Materials
ated Mate
s for offsite
and licensi
Dangerous G
6 (HSNO)
troleum Stor
of Labour, M
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rtation shall
s and Liqu
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n of these m
dance with t
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Ministry for t
g remedial e
logies:
ented to rece
consented to
n accordance
troleum Stor
of Labour, M
be those est
rials
disposal sh
ng requirem
Goods 2005)
rage Tanks a
May 1995.
ch shall be im
be complete
uids
e disposed o
materials sha
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Contaminate
the Environm
excavations
eive such wa
o receive suc
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rage Tanks a
May 1995.
ablished by t
hall be in ac
ments outline
and NZS 54
and Related
mplemented
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ll be conduc
ments of the
ed Land Man
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(Section 3.3
astes; or
ch wastes.
llowing:
and Related W
the receiving
23
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33
Waste,
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receiving
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3.4), shall
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3
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42788090/R00
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No other
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PO
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F:
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evel 4, Lambto
60 Lambton Q
O Box 3367, W
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64 4 496 375
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and Limited
on House
uay, Wellingto
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50
55
orp.co.nz
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