Waterview Connection Project (CA3466):
Auckland Council Monthly Environmental Report Report 13 – Period March 2013
Document 025-RPT-01940
28 April 2013
March 2013 Environmental Report
AC Monthly Report Mar 2013.docx Page 1 28 April 2013
1. Introduction
To meet reporting requirements for the Waterview Connection, a monthly report will be prepared and
sent to AC in the 2nd week of the following month.
This report sets out the reporting requirements for the Waterview Connection for the period March 2013.
2. Resource Consents
Consents triggered by the works to date:
Consent Description Trigger
Southern Area Enabling Works
EPA 10/2.008 (ACC:
Plan Modification
202)
For new designation, SH20, southern tunnel portal to
Maioro Street Interchange – NOR7.
Works within the designation.
EPA 10/2.010
(ARC: 38313)
Land use consents – Land disturbance (Sectors 1-9
inclusive).
Earthworks and roading/tracking/
trenching during construction. Land
disturbance activities.
EPA 10/2.021
(ARC 36474)
Discharge of contaminants to land or water from
contaminated land (that is undergoing disturbance or
remediation) (Sectors 1,3,5,6,7,8 and 9).
Land disturbance activities within areas
potentially containing contaminated
material.
EPA 10/2.025
(ARC: 38329)
Discharge to air – Roadworks. Discharge to air
associated with roadworks (including dust emission).
General activities associated with the
road construction.
Southern Area Main Works
EPA 10/2.008 (ACC:
Plan Modification
202)
For new designation, SH20, southern tunnel portal to
Maioro Street Interchange – NOR7.
Works within the designation.
EPA 10/2.010
(ARC: 38313)
Land use consents – Land disturbance (Sectors 1-9
inclusive)
Earthworks and roading/tracking/trenching during
construction.
Land disturbance activities.
EPA 10/2.001
(ARC: 38316)
Use, Erection or Placement of New Structures (Sector
9). For a stormwater pipe underneath Oakley Creek as
a permanent stream.
Construction of the Hendon Park
Culvert.
EPA 10/2.012
(ARC: 38317)
Use, Erection or Placement of New Structures (Sector
9). For bridges constructed over Oakley Creek –
includes Hendon Park Bridge and cycleway bridges.
Construction of Oakley Creek Bridge,
Hendon Pedestrian Bridge and cycle and
pedestrian bridges.
EPA 10/2.014
(ARC: 38319)
Use, Erection or Placement of New Structures (Sector
9).
Stormwater outfall structures for Oakley Creek.
Diversion and relocation of existing
stormwater outfalls.
March 2013 Environmental Report
AC Monthly Report Mar 2013.docx Page 2 28 April 2013
Consent Description Trigger
EPA 10/2.016
(ARC:38321)
Disturbance of bed of lakes and rivers (Sector 9).
Excavation, drilling or tunnelling or other disturbance
for the purpose of diverting a permanent river or
stream to a new course.
Diversion of three sections of the Oakley
Creek.
EPA 10/2.017
(ARC: 38322)
Discharge to the water table of a road (Sectors 1-9).
Diversion and discharge of stormwater from
impermeable areas into the water table of a road.
Discharges from the sealed carriageway.
EPA10/2.018
(ARC: 38323)
Discharge to the water table of a road (Sectors 1-9).
Diversion and discharge of stormwater into any
watercourse for the purpose of draining roads.
EPA 10/2.019
(ARC 38324)
Stormwater discharge – Network Operator activities
within urban areas (Sectors 1, 3, 5, 6, 7, 9). Stormwater
discharge onto land or water.
Discharges to the permanent
stormwater system.
EPA 10/2.025
(ARC 38329)
Discharge to air – Roadworks
Discharge to air associated with roadworks (including
dust emission)
General activities associated with the
road construction.
EPA 10/2.027
(ARC: 38330)
Diversion of water other than open coastal water
(Sector 9).
Structures for diversion of water flows
of a floodplain and associated diversion
and deposition of material in Sector 9.
EPA 10/2.021
(ARC:36474)
Discharge of contaminants to land or water from
contaminated land (that is undergoing. disturbance or
remediation) (Sectors 1, 3, 5, 6, 7, 8 and 9).
Land disturbance activities within areas
potentially containing contaminated
material.
Northern Area Portal Works
EPA 10/2.005 For a new designation, SH16, SH20 and Great North underpass – NOR4. A new surface designation for construction, operation
and maintenance of new interchange and structures
associated with tunnel operation, including ventilation
building and stack, mitigation and local road access,
taking in new pieces of land, and allowing for
construction and operation of ramps, stormwater,
wetland ponds, ancillary safety and operational
services and maintenance, temporary works,
vegetation removal and restoration, relocation of
services, works on north-western cycleway,
landscaping and planting, open space restoration and
restoration of the Oakley Inlet heritage area.
Works within the designation.
EPA 10/2.010 (ARC: 38313)
Land Disturbance (Sectors 1 – 9). Earthworks and
roading / tracking/ trenching during construction -
within and outside the Sediment Control Protection
Area (includes the associated discharge of sediment
laden water as a discharge consent)
Earthworks and roading
/tracking/trenching during construction.
Land disturbance activities.
EPA 10/2.017 (ARC: 38322)
Discharge to the Water Table of a Road (Sectors 1 – 9).
Diversion and discharge of stormwater from
impermeable areas into the water table of a road.
Discharges from the sealed carriageway.
March 2013 Environmental Report
AC Monthly Report Mar 2013.docx Page 3 28 April 2013
Consent Description Trigger
EPA10/2.018 (ARC: 38323)
Discharge of Water from Roads (Sectors 1– 9).
Diversion and discharge of stormwater into any
watercourse for the purpose of draining roads.
Discharges from the sealed carriageway.
EPA 10/2.019 (ARC 38324)
Stormwater Discharge - Network Operator Activities
within Urban Areas (Sectors 5, 7, 9). Stormwater
discharge onto land and water. This includes
discharges into Oakley Creek, Meola Stream & Pixie
Stream.
Discharges to the permanent
stormwater system.
EPA 10/2.025 (ARC 38329)
Discharge to Air – Roadworks. Taking precautionary
approach consent is sought for discharges to air
associated with roadworks (including dust emissions).
General activities associated with the
road construction.
Additional consents/approvals obtained for the project are as follows:
R/LUC/2011/4677
35 Valonia Street,
New Windsor
Land use consent for temporary carpark and
accessway, associated earthworks and tree
removal, and works within the dripline of
protected trees.
Construction of temporary and permanent
playing field outside designation requiring
resource consents in accordance with
Auckland City District Plan.
ARC: 39983
35 Valonia Street,
New Windsor
Landuse consent for earthworks. Earthworks for carpark and playing field
outside the designation requiring resource
consents in accordance with Auckland City
District Plan.
R/LUC/2012/991
Alan Wood Reserve
Removal and works within the dripline of
protected trees associated with the relocation of
a wastewater pipe (the Hendon Sewer) within
Alan Wood Reserve.
Works for the Watercare sewer relocation
located outside the designation requiring
resource consents in accordance with
Auckland City District Plan.
R/LUC/2012/1879
6 Barrymore Road,
Owairaka
Land use consent for removal of eight protected
trees associated with the creation of pedestrian
and vehicular accesses within Barrymore Road
Reserve.
Access to CY11 from Barrymore Road
involving removal of trees outside the
designation requiring resource consents in
accordance with Auckland City District Plan.
R/LUC/2012/2168
142-160A Stoddard Rd,
Mount Roskill
Land use consent for the construction and use of
a new Project Site Office at Stoddard Rd,
including associated earthworks and parking.
Construction of project office requiring
resource consents in accordance with
Auckland City District Plan.
R/LUC/2012/2568 Hendon Park
Installation of an above ground duct containing
power, water and telecommunication services
to provide services to Construction Yard 11
Works for the required above ground cable to
provide services to CY11 located outside the
designation requiring resource consents in
accordance with Auckland City District Plan.
R/TRC/2013/709 Richardson Rd Tree Removal
The removal of a generally protected tree
located within the road reserve of Richardson
Road associated with the shared pedestrian and
cycleway.
The removal of a generally protected tree
located within the road reserve of
Richardson Road and outside the Project
designation, requires Restricted
Discretionary Consent in accordance with
the Auckland City Isthmus District Plan.
March 2013 Environmental Report
AC Monthly Report Mar 2013.docx Page 4 28 April 2013
Consent Description Trigger
R/LUC/2013/646 CY11 Carpark & Storage
CY11 Carpark Extension and Storage, including
associated earthworks
Located outside the Project designation the
proposal required Restricted controlled
consent for earthworks;Discretionary and
Restrricted discretionary consent for car
parking; and Discretionary consent for the
placement of containers under the Auckland
City Isthmus District Plan.
ARC: 41436 Stormwater CY11 Carpark & Storage
CY11 Carpark Extension – associated stormwater
diversion
Located outside the Project designation the
proposal required Controlled activity consent
for the diversion and discharge of
stormwater (Rule 5.5.2) under the Auckland
Regional Plan: Air, Land and Water.
ARC: 41437 Earthworks CY11 Carpark & Storage
CY11 Carpark Extension – associated earthworks
Located outside the Project designation the
proposal required Restricted discretionary
consent for earthworks under the Auckland
Regional Plan: Air, Land and Water.
3. Construction Works - March until June
The table below outlines the construction works carried out in March and an indicative programme which
shows the anticpated works in the coming 3 months until 31st June 2013.
South Work Package March April May June
Maioro St to Richardson Rd
Earthworks between Maioro St & Richardson Rd
Subgrade preparation & pavement installation - southbound alignment
Drainage installation
Bored piles at 903 retaining wall (adjacent to Christ the King School)
Construct cycleway (including earthworks)
Construct CTKS Noise wall
Service decomissioning on Richardson Rd diversion
Richardson Rd bridge services and finishing works
Construct soil nail walls at 903 retaining wall
Richardson Rd to Oakley Creek
Earthworks between Richardson Rd & Oakley Creek (incl haul road)
Construct Valonia Fields
Construct Oakley Creek bridge
Construct tunnel spoil building incl sheet piling, bored piling and conc works
Construct TP10 pond at rear of Richardson Rd tavern
Construct Oakley Creek pedestrian bridge No.3
Subgrade prep & pavements installation- southbound alignment
Construct soil nail walls at 903 retaining wall
Drainage Installation
Oakley Creek Bridge to cut
Branch 9 Hendon sewer realignment
Hendon sewer crossing of Oakley Creek
March 2013 Environmental Report
AC Monthly Report Mar 2013.docx Page 5 28 April 2013
in Southern Approach Trench (SAT)
Stream realignment B
Construct haul roads from Oakley Creek to SAT
Hendon field converted to carpark and laydown area
SAT cut line to CY9
Construct Alan wood pond
Construct Alan wood pond outlet
Drill and blast basalt SAT
Bulk excavation of East Coast Bays material from SAT
Construct capping beams and drainage in SAT
Construct SAT Sump
Subgrade preparation & pavements in SAT
Construct TBM Launching platform
Fill landfill to the North West of the SAT Construct Yards CY9 & CY10 (incl laydown, crane platform, pond & buildings)
Hendon Swale (East of the SAT)
Construct Haul Roads outside the SAT
Drainage installation outside of the SAT
Construct segment yard platform in SAT
North Northern Apporach Trench (NAT) (& surrounds) to fill line
Diaphram Wall excavation incl loadout of material via stockpile area
Diaphram wall capping beams
Construct NAT bored pile walls
Construct NAT head wall
Construct NAT props
NAT Excavation Stage 1
Northern fill embankment & north of Oakley Creek inlet
Topsoil strip, service installation & sand blanket Northern embankment
Lay structural fill for northern fill embankment
Construct staging and access platforms, Ramps 1,3 & 4
Construct permanent piles, Ramps 1,3 & 4
Construct columns and cross heads in CMA, Ramps 1, 3 & 4
Construct staging and access platform Ramp 2
Tree clearance and site establishment north of Oakley Creek inlet
Construct permanent piles north of Oakley Creek inlet
Construct columns & crossheads north of Oakley Creek inlet, Ramps 1, 3 & 4
Great North Rd interchange
Site establishment (haul road & environmental controls) in Tear Drop area
Construct permanent piles in Tear Drop area
Construct columns & cross heads in Tear Drop area
March 2013 Environmental Report
AC Monthly Report Mar 2013.docx Page 6 28 April 2013
4. Site Meetings and Inspections
Auckland Council’s Erosion and Sediment Control officer visited the Southern and Northern Area works
on the 7th, 14th, 21st and 28th of March.
5. Environmental Monitoring
5.1. Tree Management
Grant Sirl, Arborist – Arbor Advice Ltd (the Project Arborist) has provided the following report for the
amenity trees affected by the works;
Amenity Tree
Species Location Health Fencing Observations/recommended actions
South
522 Zelkova Within compound area adjacent north side of Richardson Rd
Good Good Protective fencing – steel pipe/mesh in good condition. No materials within exclusion zone around tree.
698 Group var native species
Alan Wood Reserve, access via Methuen Rd
Good/ fair Sound barrier wall appropriate protection
Remaining trees of group 698 appear in reasonably good health/condition.
Grove various species
Small Kowhai, Karamu etc
Located southwestern side of Alan Wood Reserve.
Good Good Only small shrubs/trees in line of overflow pipe have been removed. Protective barrier fencing has excluded remaining vegetation from immediate work area.
512, 513 to
516 and 519
groups
Titoki, Prunus, Totara, Tarata, Karaka & Cabbage
Near western end of Alan Wood Reserve adjacent basketball court. (outside designation).
Good/Fair - Southern
Totara tree in good
condition. Northern
tree in fair condition; damage to
south of crown
evident. Likely
exhaust fumes have
scorched foliage
Good - southern side of work site alignment. Good – Northern Side of work site alignment
Southern side protective fencing erected/sturdy and in good condition. Fencing excludes the vegetation from immediate work site area. Northern Totara tree rootplate area has been mulched. Protective fencing alignment has been repositioned to avoid conflict with canopy of northern Totara tree. Will undertake remedial work to northern Totara tree upon completion of drainage trench. Secure site fence excludes remaining trees/vegetation in Park area from construction zone
North
N/A Pohutukawa Waterview Primary School
Good Sound barrier wall erected eastern side of tree. (Tree within School grounds outside designation)
Minor remedial work required to eastern side crown structure that extends over alignment of south barrier wall, one small damaged & hanging branch. Rootplate area has been mulched.
NB: Excavation, concrete mowing strip and post holes for security fence within road berm under dripline of tree not by the WCA.
March 2013 Environmental Report
AC Monthly Report Mar 2013.docx Page 7 28 April 2013
#698 & 811
Titoki (x2) Herdman Street – Street trees
Good/Fair Trees in designation area to be preserved where possible. Noise wall protects trees from construction
Titoki tree # 698 in poor health & removal recommended. Construction of the water main close to the tree will have further implications upon tree vitality/health.
#247 Pohutukawa Waterview Reserve
Fair Tree relocated to within Reserve
Tree under stress following relocation procedure. Advanced de-foliation occurring. Tree status has not varied a great deal since initial premature leaf defoliation but appears extent of leaf drop may have decreased.
#’s 272, 276, 300, 315, 330, 729, 730, 732
272-Totara 276-Robinia x6 300–Robinia 315–Robinia x4 330-Robinia x3 729-Robinia x3 730-Karaka 732-Karaka
Located within Star Mill archaeological area
Good/Fair Trees within archaeological area that has been fenced off from adjacent construction zone.
Grass/weeds have been mown/removed. Regular maintenance required.
A protective barrier fence needs to be erected in gully area to replace the original chainlink fence to exclude the subject trees from the construction zone.
#’s 804, 805, 806, 807,
808 & 809
Kowhai, Silver Birch, Kawaka, Kahikatea, Bottlebrush, Lancewood & Cabbage tree
23/25 Waterbank Crescent
Majority Good
Trees retained around remaining dwellings & excluded from work area with steel mesh security fencing
No actions required.
5.2. Noise and Vibration Monitoring
Noise monitoring has been undertaken for new plant and activities since commencement of construction in
January 2012 to assess levels against noise predictions (as per the Construction Noise and Vibration
Management Plan) and confirm compliance with the project noise criteria, specifically as relates to Consent
conditions CNV.2 for noise, CNV.3 for noise from air blast and CNV.4 and CNV.5 for vibration.
The focus for noise and vibration during March has been continuation of monitoring of noise and vibration
for blasting in the Southern approach trench. Vibration and noise monitoring for the Southern area blasts
was undertaken by Styles Group and the results are reported below. In addition, extended works required
outside normal working hours (07.30 – 18.00hrs Monday to Saturdays), particularly in the Southern
approach trench and for completion of the Richardson Road Bridge, has required noise assessment and
submission of Site Specific Noise management Plans (SSNMPs) to Council.
The table below shows the maximum measured noise levels for activities undertaken in March during the
trial of Sunday Southern approach trench structural works covered by SSNMP#18.
March 2013 Environmental Report
AC Monthly Report Mar 2013.docx Page 8 28 April 2013
Date/time Measurement location Activity Noise level LAeq (dB)
Noise level LAMax (dB)
10/03/2013 7:52 a.m.
Avondale motor park site boundary, approx 20m from nearest noise receivers, 60m from works
Baseline measurement prior to works
44.3 64.4
10/03/2013 09.30 a.m.
Noise from Southern approach trench works, includes 2 diggers & trucks, plus small tools
49.8 69.6
10/03/2013 8:05 a.m.
98 Methuen Avenue, at site boundary, approx 10m from receiver, 80m from works
Baseline measurement prior to works
44.6 68.0
10/03/2013 09.47 a.m.
Noise from Southern approach trench works, includes 2 diggers & trucks, plus small tools
50.3 76.4
10/03/2013 8:53 a.m.
Rear of 79 Hendon Ave, site side of 3m noise wall, approx 20m from receiver, 40m from works
Baseline measurement prior to works
54.6 84.0
10/03/2013 9:27 a.m.
Noise from Southern approach trench works, includes 2 diggers & trucks, plus small tools
57.2 76.2
Project noise criteria Southern area (07.30 -18.00) Sundays (Apply at residential property) 45 85
Table showing Measured Noise Levels
The table below shows the over pressure and maximum vibration levels recorded for each blast
undertaken in March. The monitoring was carried out at the nearest dwelling and also the nearest
occupied dwelling (closest receiver). There were no measured exceedences of the peak sound pressure
level set out in CNV.3 measured at the closest receiver. There were no measured exceedences of the peak
particle velocity set out in CNV.5.
Ref Date Time Location Description Monitored
Lzpeak -2.5dB
adjustment for façade reflection
Max. PPV mm/sec
Residents relocated for blast?
254
255
256
257
258
259
260
261
262
263
264
265
05.03.13
05.03.13
07.03.13
07.03.13
08.03.13
11.03.13
12.03.13
13.03.13
15.03.13
15.03.13
18.03.13
19.03.13
10:25 10:29 10:00 16:03 14:22 16:17 14:42 14:00 10:00 14:00 10:00 14:00
SAT(2)071
SAT(1)016
SAT(1)017
SAT134
SAT(2)072
SAT135
SAT(2)073
SAT(2)074
SAT(2)075
SAT(2)076
SAT(1)018
SAT(1)019
24 holes. 1x1.5kg per hole. 2nd layer. 29 holes. 1x4.5kg per hole. 1st layer. 29 holes. 1x4.5kg per hole. 1st layer. 10 holes. 1x4.5kg per hole. 5th layer. 28 holes. 1x3.75kg per hole. 2nd layer. 37 holes. 1x4.5kg per hole. 5th layer. 33 holes. 1x2.25kg per hole. 2nd layer. 18 holes. 1x3.0kg per hole. 2nd layer. 24 holes. 1x3.0kg per hole. 2nd layer. 12 holes. 1x1.5kg per hole. 2nd layer. 27 holes. 1x3.0kg per hole. 2nd layer. 20 holes. 1x3.0kg per hole.
105 Hendon 116A Methuen 105 Hendon 116A Methuen 116A Methuen 105 Hendon 81 Hendon 116A Methuen 105 Hendon 81 Hendon 88 Methuen 105 Hendon 116A Methuen 105 Hendon 116A Methuen 116A Methuen 105 Hendon 105 Hendon 116A Methuen 105 Hendon 116A Methuen 105 Hendon
117dB 110dB 121dB 111dB 112dB 114dB 119dB 110dB 116dB 117dB 110dB 114dB 112dB 120dB 113dB 115dB 116dB 108dB 105dB 117dB 116dB 118dB
2.95@ 28Hz 1.17@ 27Hz 1.63@ 31Hz 1.70@ 19Hz 1.64@ 19.7Hz 2.31@ 18Hz 1.51@ 34Hz 1.39 @ 34Hz 2.80 @ 34Hz 1.73 @ 34Hz 1.84 @ 34Hz 2.03 @ 34Hz 1.47 @ 34Hz 5.75 @ 34Hz 1.29 @ 34Hz 1.10 @ 34Hz 7.72 @ 34Hz 1.43 @ 34Hz Less than 1.0 6.07 @ 26Hz Less than 1.0 4.93 @ 29Hz
out out out out in out in in out in in out in out out in out out out out in out
March 2013 Environmental Report
AC Monthly Report Mar 2013.docx Page 9 28 April 2013
266
267
268
269
20.03.13
22.03.14
26.03.13
28.03.13
14:00 14:00 14:09 11:00
SAT(2)077
SAT(2)078
SAT(2)079
SAT(2)080
2nd layer. 19 holes. 1x3.0kg per hole. 3rd layer. 27 holes. 1x3.75kg per hole. 3rd layer. 45 holes. 1x3.0kg per hole. 3rd layer. 40 holes. 1x2.25kg per hole. 3rd layer.
116A Methuen 105 Hendon 116A Methuen 105 Hendon 116A Methuen 105 Hendon 116A Methuen 105 Hendon 116A Methuen
109dB 116dB 112dB 115dB 111dB 115dB 110dB 117dB
1.36 @ 37Hz 2.73 @ 30Hz 1.37 @ 11.8Hz 9.14 @ 31Hz 2.53 @ 26Hz 7.63 @ 15.8Hz 1.80 @ 41Hz 6.85 @ 27Hz 1.26 @ 14.2Hz
in out in out in out in out out
Closest occupied house
A number of Site Specific Noise Management Plans (SSNMP) were submitted to Auckland Council in March
under consent condition CNV13. The SSNMP submitted and approved in March 2013 are listed below.
SSNMP Ref Date of
Works
Night
Works
or Day
Works
Location of
Works
Description of
Works
Works
start
time
Works
end
time
Date SSNMP
Submitted to
Council
Date SSNMP
Approved by
Council
Works
now
complete
SSNMP#17
6/03/2013 Night Richardson Road
Vector pole removal
Richardson Rd
8pm 11pm 27/02/2013 5/03/2013 Yes
SSNMP#18
10/03/2013 Day-Sunday
Southern Approach
Trench
SAT structural work
9am 6pm 1/03/2013 5/03/2013 Yes
SSNMP#18Rev
2
10/03/2013 Day-Sunday
Southern Approach
Trench
SAT structural work
9am 6pm 6/03/2013 6/03/2013 Yes
SSNMP#18Rev
3
17/03/2013 Day-Sunday
Southern Approach
Trench
SAT structural work
9am 6pm 12/03/2013 15/03/2013 Ongoing
SSNMP#19
29/03/13-01/04/13
Night & Sunday/Public
Hol
Great North Road
Service investigations
Great North Rd
7am 7am 1/03/2013 5/03/2013 Yes
SSNMP#20
21/03/2013 Night Richardson Road
Street light installation
Richardson Rd bridge
9pm 4am 14/03/2013 20/03/2013 Yes
SSNMP#21
24/03/13-27/03/13
Night Richardson Road
Drainage installation
Richardson Rd
8pm 5am 15/03/2013 20/03/2013 Yes
SSNMP#22
24/03/2013 Day-Sunday
Hendon Park Stream realignment B
tie ins
9am 5:30pm 15/03/2013 20/03/2013 Yes
SSNMP#23
26/03/2013 &
27/03/2013
Night Southern Approach
Trench
SAT structural work
8pm 12am 20/03/2013 22/03/2013 Yes
5.3. Air Quality Monitoring
Two Total Suspended Particulate (TSP) analysers and one met mast are required in the Southern Area
(Sector 9) and one TSP analyser with met mast is required in the Northern Portal Area (sector 7) under
consent conditions AQ16 and AQ17.
March 2013 Environmental Report
AC Monthly Report Mar 2013.docx Page 10 28 April 2013
Two E-BAM TSP monitors are currently co-located at a site in Hendon Park considered representative of
relevant exposure to the Southern area main works. The Northern Portal area E-BAM is located outside
the Waterview School grounds.
E-BAM results for March show levels below the project consent limit for TSP with the exception of the
following episodes.
Southern Area (EBAMs 1 &2):
Flow faults were found on EBAM2 on 01/03/13 and on 11/03/13, which was rectified 05/03/13
and 13/03/13 respectively. Data during those periods were therefore invalid.
A flow fault was found on EBAM1 on 02/03/13, which was rectified 05/03/13. Data during that
period is therefore invalid.
01/03/13–daily average 181 µg/m3 at EBAM1 and data invalid at co-located EBAM2;
08/03/13–daily average 100 µg/m3 at EBAM1 and 89 µg/m3 at co-located EBAM2;
11/03/13–daily average 117 µg/m3 at EBAM1 and data invalid at co-located EBAM2;
12/03/13–daily average 90 µg/m3 at EBAM1 and data invalid at co-located EBAM2.
Northern Area (EBAM 3):
No exceedences were recorded of the daily average consent limit of 80 µg/m3.
Four exceedences of the hourly trigger level of 200 µg/m3 (one on 07/03/13 and 25/03/13, two
on 15/03/13; all at 12pm - 2pm); The met data for these times indicate elevated afternoon wind
speeds and westerly wind directions. The wind direction does not correspond with the site works
to the north and east of the analyser, so there may be another local source contribution,
especially given the repeat occurance at the same time of day.
The above exceedences of the daily consent limit in the Southern Area reflected elevated TSP
concentrations during construction hours (mainly during afternoons). Wind directions were largely
southerlies/ south-westerlies corresponding with site activities and wind speeds were elevated in the
afternoons on these days. Excavation works for the sewer realignment were occurring in the vicinity of the
southern area EBAMs at the beginning of March, which has contributed to these localised elevated levels.
These are now completed. It should also be noted that on the 19/03/13 an annual service of the E-BAMs
highlighted some issues with the humidity sensors calibration which may have been contributing to the
elevated TSP levels and the flow faults.
The Council Air Quality Compliance Officer has been kept informed of the measured exceedences and
analyser faults during March. Given the dry conditions and elevated dust levels, additional dust suppression
measures have been deployed during March, including a second water cart in the southern area. A
portable dust analyser was also used in March to provide wider dust monitoring coverage of the southern
area works and confirm compliance with project criteria.
Monitoring Period
Description EBAM % Data capture
TSP Concentration
in µg/m3
TSP Project criteria in
µg/m3
01/02/13-28/02/13
Maximum Hourly Average TSP 1-
southern area
90
1307 200
Maximum Rolling 24-Hour Average TSP 191 80
Maximum Daily Average TSP(Consent condition AQ.20 Trigger for investigation)
181 80
Maximum Hourly Average TSP 2- 75 716 200
March 2013 Environmental Report
AC Monthly Report Mar 2013.docx Page 11 28 April 2013
Monitoring Period
Description EBAM % Data capture
TSP Concentration
in µg/m3
TSP Project criteria in
µg/m3
Maximum Rolling 24-Hour Average TSP southern area
104 80
Maximum Daily Average TSP(Consent condition AQ.20 Trigger for investigation)
89 80
Maximum Hourly Average TSP 3-
northern area
100 312 200
Maximum Rolling 24-Hour Average TSP 57 80
Maximum Daily Average TSP(Consent condition AQ.20 Trigger for investigation)
55 80
Table showing TSP Monitoring Results
5.4. Ground Water Monitoring
Monthly monitoring for piezometers identified in Appendix A of the Groundwater Management Plan
(GWMP) is ongoing, with the exception of around 19 piezometers around the tunnel which are still to be
installed (these piezometers are located between the Pak’n Save and Unitech and will be installed 12
months ahead of active tunnelling as per the rev 4 GWMP).
Piezometers located within 150 m of the Southern Approach trench have been monitored weekly since
June (appended), in advance of excavation above the water table that commenced in July. Dewatering
activities commenced in September when groundwater was encountered in the excavation at a depth of
approximately 9 m below ground level. Active excavation is occurring between chainage 10530 to 11080,
with dewatering (via sump pumps in the excavation) between chainages 10650 and 11080. Accordingly
more intensive monitoring of groundwater levels around the Southern Approach Trench (twice-weekly in
accordance with condition G.6) has commenced.
Piezometers in very close proximity to the trench (i.e. less than 30 m distance, and inside the construction
zone) have recorded a drop in groundwater level of between 2 m to 7 m in the basalt and Tauranga
Group. In the underlying East Coast Bays Formation (ECBF) changes in groundwater level of between 0 m
and 10 m are recorded. The larger changes in groundwater levels occur in wells immediately adjacent to
the drained walls at the portal face (CH11080) with drawdown reducing to the south and east as the
excavation shallows.
0
1
2
3
4
5
6
7
8
9
10
1 10 100 1000
Max
imu
m C
han
ge in
Le
vel (
m)
Distance from SAT (m)
V
A
ER
EW
EU
BH1106
BH519
DH823 BH1103BH1107 BH1108
Shallow bores alert levelDeep bores alert levelBasalt bores alert level
March 2013 Environmental Report
AC Monthly Report Mar 2013.docx Page 12 28 April 2013
Figure 1: Drawdown vs. Distance Graph for SAT
Beyond the construction zone (> 30 m distance) piezometers have recorded a drop in groundwater level
of between 1 m and 6 m in the basalt and Tauranga Group, and generally less than 3 m in the ECBF. Again
the largest changes in groundwater levels occur near the portal reducing to the south and east; however
in addition there is also a zone of greater drawdown running along an axis to the north-east (BH519,
BH1103, BH1106, BH1107 and BH1108). These piezometers are located along the axis (and deepest part)
of the basalt lobe that is intersected by the Southern Approach Trench excavation. The zone of greater
drawdown along this axis likely reflects a fracture, of low storativity, that runs through the middle of the
basalt lobe. The drawdown may also to be exacerbated by the exceptionally low rainfall that fell in
Auckland in January, February and March (30% of average rainfall, therefore reducing direct recharge to,
and groundwater levels in the basalt), and following on from very low rainfall since September 2012 (50%
of average rainfall) .In this area there is a thickness of 8 m to 20 m of basalt. Given the thickness of
incompressible basalt, and that the alluvium remains saturated, the potential for damaging consolidation
settlement is considered to be low. A maximum total settlement of 35 mm to 50 mm is consented within
this area. Best estimate compressibility (mv) data indicates that a drawdown of some 11 m, for a period
of over 12 months would be required to effect 35 mm of settlement. The alarm trigger level for bores in
this area was recommended (December 2012) to be 8 m (i.e. allowing sufficient time to warn against
drawdown approaching that which might result in settlement exceeding the consented levels);
groundwater levels at the end of March remain above this level.
In light of the alert level exceedances we have increased the number and extent of wells being monitored
twice-weekly (the majority of which are continuously logged) and groundwater level data will continue to
be reviewed every other day until the pressure has fully stabilised. In addition we are currently reviewing
the groundwater level and settlement predictions for this area to confirm that there is no increase in the
potential for effects resulting from this drawdown.
Markers within 100 m of the area (generally located on control sections K, L and M) have been specifically
reviewed, with movement being less than 5 mm i.e. well within the trigger levels for these markers and
also within the typical seasonal range across the project.
5.5. Oakley Creek Flow Monitoring
Six (6) continuous flow monitoring stations have been established by NIWA in Oakley Creek. The data
from these are updated and reviewed on a monthly basis to investigate whether the construction works
have had any effect on base flows in Oakley Creek.
The monitoring stations are located as follows:
Oakley Tributary (i.e. Stoddard Creek) at Richardson road culverts
o Data from December 2010
Oakley Creek at Sewer Pipe Bridge (i.e. Diversion B cascade)
o Data from December 2010
Oakley Creek at Bollard Avenue
o Data from August 2010
Oakley Creek at Cradock Street footbridge
o Data from September 2009
Oakley Creek at Waterview Downs
o Data from August 2010
March 2013 Environmental Report
AC Monthly Report Mar 2013.docx Page 13 28 April 2013
Oakley Creek at Carrington Weir
o Data from December 2010
One gauge (Stoddard Creek at Richardson road culverts) is upstream of the SH 20 streamworks (although
on a tributary), the sewer pipe bridge gauge is just downstream of Diversion C, and the other four gauges
are further downstream of the stream works and southern approach tunnel portal.
Five gauges were installed in late 2010, with the sixth (Cradock Street footbridge) installed in September
2009. Five gauge records thus include three late summer periods, and the sixth four. It is noted that (as
assessed by the gauged rainfall from the Whau at Mt Roskill Substation gauge, refer table below) the
2010 and 2013 late summer periods were relatively dry, and the 2011 and 2012 periods wet.
Oakley catchment late summer rainfall, 2010 -2013
Year January Rainfall (mm)
February Rainfall (mm)
March Rainfall (mm)
Total (mm)
2010 76 16 23 115
2011 202 33 148 383
2012 68 116 192 376
2013 5 28 58 91
Only the Cradock Street record includes the four summer periods. This gauge is downstream of New
North Road.
As observed from the Cradock St records, the Oakley Creek base flows in the late summer months
typically fall below 50 l/s (refer Figure 2 below). Recorded flows in 2010 were as low as 10 l/s in late
March. Late summer flows in 2011 and 2012 were generally higher than in 2010 and 2013, which is
consistent with the greater rainfall recorded in the catchment in those years.
March 2013 Environmental Report
AC Monthly Report Mar 2013.docx Page 14 28 April 2013
Figure 2: Oakley Creek flows at Cradock Street Footbridge (2013 blue, 2012 grey, 2011 green, 2010 red)
From the Cradock Street record, the 2013 flows are not significantly lower than the 2010 flows, when
recorded rainfall in the catchment was comparable, January to March: 115 mm in 2010, 91 mm in 2013.
This indicates that there is no obvious effect so far from the works to divert the stream watercourse and
excavate for the southern portal approach trench.
Furthermore, comparison of records for January to March 2013, show recorded flows generally increasing
at gauges the further downstream, from the sewer bridge to Waterview Downs, as shown in Figure 3
below. This is consistent with increasing contribution from the aquifer to the stream during the low
rainfall period.
March 2013 Environmental Report
AC Monthly Report Mar 2013.docx Page 15 28 April 2013
Figure 3: Oakley Creek flows downstream of SH20 southern approach works
5.6. Settlement Monitoring
Monthly monitoring of framework ground settlement markers identified in the Settlement Effects
Management Plan (SEMP) continues.
Framework markers within 150 m of the Southern Approach Trench have been being monitored
weekly since June 2012. Recorded vertical movements for most markers are within the pre-construction
seasonal range and in many cases within the accuracy of the survey (+/- 3 mm).
Movements of 5 mm to 12 mm (below their lowest pre-construction level) have been recorded in
markers M6, Z154, Z155 and X28 located on Hendon Ave adjacent to the active excavation zone. Marker
X28 has been fluctuating between 0 mm and 5 mm since works commenced in September 2012; given its
proximity to the construction zone and the details of the marker construction (pin in kerb / pavement) it
may be influenced by construction traffic in the area. Regardless these markers remain below their
consented settlement trigger levels. Differential settlement between markers is flatter than 1 in 4000
and remains well below trigger levels, as do assessed building damage categories in the area i.e. the
potential for adverse effects resulting from this apparent movement is considered to be negligible.
Regardless, these markers will continue to be monitored and reviewed weekly.
Surveyed levels for all markers are above proposed trigger levels.
March 2013 Environmental Report
AC Monthly Report Mar 2013.docx Page 16 28 April 2013
Figure 4: Ground Movement vs. Time for SAT
5.7. Ecological and Water Quality Monitoring: Oakley Creek
Construction phase water quality monitoring has been carried out monthly, as required by consent
conditions. Results for January 2012 to March 2013 are summarised in Figures 3 to 8 below. Full
laboratory transcripts are available on request.
Concentrations of all contaminants were consistent with those measured earlier in the construction
phase, and comparable to pre-construction baseline levels. Results from monitoring locations
downstream of the works area (WR4 and WR5) are also generally comparable to results from upstream
locations. The TSS ‘spike’ recorded at site WR4 in January, appears to have only been temporary, or
perhaps a sampling artefact.
pH at iste WR4 (downstream of the southern works site) has been edging higher over the last 4 months
months. We have initiated a review of practices at the southern works area, and more intensive pH
monitoring at locations between the southern works area and WR4, to identify if activities there may be
related to this increase.
WCA has arranged for approximately 250 native plants to be supplied to Friends of Oakley Creek to
support its winter planting programme. These will be delivered and planted in early May.
-15.0
-10.0
-5.0
0.0
5.0
10.0
15.0
Sep 2010 Dec 2010 Mar 2011 Jun 2011 Sep 2011 Dec 2011 Mar 2012 Jun 2012 Sep 2012 Dec 2012 Mar 2013
De
form
atio
n f
rom
Ad
op
ted
Pre
con
stru
ctio
n M
inim
um
(m
m)
Date
Settlement Markers within 150 m of the SAT
J7
L7
M6
M7
X13
X15
X16
X18
Z142
Z152
Z154
Z155
Z156
X25
X26
X26a
X27
Z27
Z28
Z30All below trigger levels for markers within 150 m of the trench
March 2013 Environmental Report
AC Monthly Report Mar 2013.docx Page 17 28 April 2013
Figure 3: Turbidity data from sites WR1-WR5 Figure 4: pH data from sites WR1-WR5
Figure 5: TSS data from sites WR1-WR5 Figure 6: Total copper data from sites WR1-WR5
Figure 7: Total lead data from sites WR1-WR5 Figure 8: Total zinc data from sites WR1-WR5
Fortnightly monitoring of significant vegetation, including geraniums, continues to be carried out. All
translocation of geranium plants from areas that will be affected by the works has been completed. This
has included successful transplanting into the Diversion C area.
March 2013 Environmental Report
AC Monthly Report Mar 2013.docx Page 18 28 April 2013
Fish relocation in relation to the cut-over of Diversion B and in-filling of the original stream channel is
nearing completion. Numbers and size classes of fish relocated will be reported to Auckland Council,
MFish/MPI and iwi in due course.
5.8. Contaminated Soil Monitoring
Earthworks in March 2013 requiring off-site disposal of soil comprised those from the following locations:
• Watercare /Hendon sewer;
• Southern Approach Trench;
• CY9 construction yard/excavation of the Old Landfill to the west of the Southern Portal Trench;
• Stream Diversion B earthworks;
• Alan Wood Reserve stormwater pond (CY10 area);
• Section between Maioro and Richardson Roads; and
• Northern Portal Approach Trench.
No preparatory earthworks for the Great North Road Interchange works occurred.
About 85,100 tonnes of soil, 21,200 tonnes of basalt rock and 660 tonnes of refuse and contaminated soil
were removed from the project during the month. Almost all of the soil (98%) sourced from the deep
excavations in the northern and southern portal was removed to Wiri Cleanfill. A breakdown of the
volumes of soil disposed to the various facilities in April is provided on Tables 5.1 and 5.2 respectively.
Ongoing work in the south is expected to comprise:
• Removal of basalt and clay from the Southern Approach Trench for disposal to mainly Wiri
cleanfill (up to May 2013).
• Removal of clay between Maioro Interchange and Richardson Road for motorway alignment and
retaining wall construction to mainly Wiri cleanfill (up to September 2013).
• Removal of spoil from sewer diversion works for disposal to both Wiri cleanfill and/or Three Kings
Managed Fill (up to May 2013).
• Stream Diversion B earthworks for disposal mainly to Wiri cleanfill (up to April 2013).
• Excavation of old landfill in the vicinity of the Southern Approach Trench for disposal to Ridge
Road Quarry and/or Redvale Landfill (up to May 2013).
• CY9, CY10 and CY11 (spoil building) formation works for disposal to both Wiri cleanfill and/or
Three Kings Managed Fill (up to May 2013).
In the north, work relating to the northern portal and fill embankment will require disposal of spoil mainly
to Wiri Cleanfill. Spoil from piling expected to commence from April 2013 will require disposal to either
Wiri cleanfill, Three Kings Managed Fill and/or Redvale Landfill.
March 2013 Environmental Report
AC Monthly Report Mar 2013.docx Page 19 28 April 2013
Table 5.1: Disposal location and approximate quantity of soil disposed off site from the south
Notes:
* Estimated volume based on a soil density of 1.7 tonnes/m3 ^ Estimated volume based on 19 tonnes for a articulated truck
Volume Volume Volume Volume Volume Volume Volume
Tonnes tonnes m3 * Tonnes tonnes m3 * Tonnes tonnes m3 * Tonnes tonnes m3 * Tonnes tonnes m3 * Tonnes tonnes m3 * Tonnes ^ tonnes m3 *
1-Mar-13 0 167212.93 98361 0.00 68763.11 40449 0.00 12051.2 7089 1042.36 236215.92 138951 3656.18 102173.76 60102 0.00 6865.48 4039 0.00 8,560 5,035
2-Mar-13 0 167212.93 98361 0.00 68763.11 40449 0.00 12051.2 7089 717.72 236933.64 139373 2031.66 104205.42 61297 0.00 6865.48 4039 0.00 8,560 5,035
4-Mar-13 0 167212.93 98361 0.00 68763.11 40449 0.00 12051.2 7089 1270.12 237486.04 139698 3298.89 105472.65 62043 0.00 6865.48 4039 0.00 8,560 5,035
5-Mar-13 0 167212.93 98361 0.00 68763.11 40449 0.00 12051.2 7089 1369.26 237585.18 139756 2920.97 105094.73 61820 0.00 6865.48 4039 0.00 8,560 5,035
7-Mar-13 0 167212.93 98361 0.00 68763.11 40449 0.00 12051.2 7089 1158.50 238743.68 140437 3977.07 109071.8 64160 0.00 6865.48 4039 0.00 8,560 5,035
8-Mar-13 0 167212.93 98361 0.00 68763.11 40449 0.00 12051.2 7089 940.08 239683.76 140990 3696.66 112768.46 66334 116.94 6982.42 4107 0.00 8,560 5,035
9-Mar-13 0 167212.93 98361 0.00 68763.11 40449 0.00 12051.2 7089 797.40 240481.16 141460 1913.04 114681.5 67460 0.00 6982.42 4107 0.00 8,560 5,035
11-Mar-13 0 167212.93 98361 154.44 68917.55 40540 0.00 12051.2 7089 1797.20 242278.36 142517 4405.80 119087.3 70051 0.00 6982.42 4107 0.00 8,560 5,035
12-Mar-13 0 167212.93 98361 238.02 69155.57 40680 0.00 12051.2 7089 1777.30 244055.66 143562 3870.14 122957.44 72328 0.00 6982.42 4107 320.00 8,880.00 5,223.53
13-Mar-13 0 167212.93 98361 161.78 69317.35 40775 0.00 12051.2 7089 1421.88 245477.54 144399 2957.26 125914.7 74067 0.00 6982.42 4107 48.00 8,928.00 5,251.76
15-Mar-13 0 167212.93 98361 54.60 69371.95 40807 0.00 12051.2 7089 1034.14 246511.68 145007 4007.64 129922.34 76425 0.00 6982.42 4107 0.00 8,928.00 5,251.76
16-Mar-13 0 167212.93 98361 0.00 69371.95 40807 0.00 12051.2 7089 539.80 247051.48 145324 3051.82 132974.16 78220 0.00 6982.42 4107 0.00 8,928.00 5,251.76
18-Mar-13 0 167212.93 98361 0.00 69371.95 40807 0.00 12051.2 7089 836.54 247888.02 145816 3200.58 136174.74 80103 0.00 6982.42 4107 0.00 8,928.00 5,251.76
19-Mar-13 0 167212.93 98361 0.00 69371.95 40807 0.00 12051.2 7089 689.60 248577.62 146222 3749.68 139924.42 82308 0.00 6982.42 4107 0.00 8,928.00 5,251.76
20-Mar-13 0 167212.93 98361 0.00 69371.95 40807 0.00 12051.2 7089 798.06 249375.68 146692 3308.60 143233.02 84255 0.00 6982.42 4107 0.00 8,928.00 5,251.76
21-Mar-13 0 167212.93 98361 0.00 69371.95 40807 0.00 12051.2 7089 701.30 250076.98 147104 2470.52 145703.54 85708 0.00 6982.42 4107 0.00 8,928.00 5,251.76
22-Mar-13 0 167212.93 98361 85.68 69457.63 40857 0.00 12051.2 7089 475.14 250552.12 147384 2289.90 147993.44 87055 0.00 6982.42 4107 0.00 8,928.00 5,251.76
23-Mar-13 0 167212.93 98361 26.66 69484.29 40873 0.00 12051.2 7089 418.46 250970.58 147630 1170.10 149163.54 87743 0.00 6982.42 4107 0.00 8,928.00 5,251.76
25-Mar-13 0 167212.93 98361 53.90 69538.19 40905 0.00 12051.2 7089 893.52 251864.1 148155 3509.04 152672.58 89807 164.90 7147.32 4204 64.00 8,992.00 5,289.41
26-Mar-13 0 167212.93 98361 28.04 69566.23 40921 0.00 12051.2 7089 899.02 252763.12 148684 3222.48 155895.06 91703 164.34 7311.66 4301 0.00 8,992.00 5,289.41
27-Mar-13 0 167212.93 98361 167.84 69734.07 41020 0.00 12051.2 7089 832.76 253595.88 149174 2622.76 158517.82 93246 216.12 7527.78 4428 0.00 8,992.00 5,289.41
28-Mar-13 0 167212.93 98361 159.02 69893.09 41114 0.00 12051.2 7089 818.02 254413.9 149655 1721.34 160239.16 94258 0.00 7527.78 4428 48.00 9,040.00 5,317.65
Month of March 0 1,129.98 0.00 21,228.18 67,052.13 662.30 480.00
Ridge Road Disposal Site
Cummulative total
Redvale Disposal Site
Cummulative total
Date
Cummulative total
Puketutu Managed Fill Site
Cummulative total
Wiri Disposal Site (Rock)Three Kings Managed Fill Site
Cummulative total
Greenmount Managed Fill Site
Cummulative total
Wiri Disposal Site (Cleanfill)
Cummulative total
March 2013 Environmental Report
AC Monthly Report Mar 2013.docx Page 20 28 April 2013
Table 5.2: Disposal location and approximate quantity of soil disposed off site from the north
Volume Volume Volume Volume Volume Volume
Tonnes tonnes m3 * Tonnes tonnes m3 * Tonnes tonnes m3 * Tonnes tonnes m3 * Tonnes tonnes m3 * Tonnes tonnes m3 *
1-Mar-13 0 0 0 0.00 13,673.50 8043 0.00 0 0 0.00 0 0 760.10 33042.84 19437 0.00 941.38 554
2-Mar-13 0 0 0 0.00 13,673.50 8043 0.00 0 0 0.00 0 0 955.38 33998.22 19999 0.00 941.38 554
4-Mar-13 0 0 0 0.00 13673.5 8043 0.00 0 0 0.00 0 0 1682.75 35680.97 20989 0.00 941.38 554
5-Mar-13 0 0 0 0.00 13673.5 8043 0.00 0 0 0.00 0 0 1343.48 37024.45 21779 0.00 941.38 554
7-Mar-13 0 0 0 0.00 13673.5 8043 0.00 0 0 0.00 0 0 1164.26 38188.71 22464 0.00 941.38 554
8-Mar-13 0 0 0 234.24 13907.74 8181 0.00 0 0 0.00 0 0 986.72 39175.43 23044 0.00 941.38 554
11-Mar-13 0 0 0 0.00 13907.74 8181 0.00 0 0 0.00 0 0 615.32 39790.75 23406 0.00 941.38 554
12-Mar-13 0 0 0 0.00 13907.74 8181 0.00 0 0 0.00 0 0 518.24 40308.99 23711 0.00 941.38 554
13-Mar-13 0 0 0 0.00 13907.74 8181 0.00 0 0 0.00 0 0 289.48 40598.47 23881 0.00 941.38 554
15-Mar-13 0 0 0 0.00 13907.74 8181 0.00 0 0 0.00 0 0 659.66 41258.13 24269 0.00 941.38 554
16-Mar-13 0 0 0 0.00 13907.74 8181 0.00 0 0 0.00 0 0 399.70 41657.83 24505 0.00 941.38 554
18-Mar-13 0 0 0 0.00 13907.74 8181 0.00 0 0 0.00 0 0 620.04 42277.87 24869 0.00 941.38 554
19-Mar-13 0 0 0 0.00 13907.74 8181 0.00 0 0 0.00 0 0 520.54 42798.41 25176 0.00 941.38 554
20-Mar-13 0 0 0 0.00 13907.74 8181 0.00 0 0 0.00 0 0 548.66 43347.07 25498 0.00 941.38 554
21-Mar-13 0 0 0 0.00 13907.74 8181 0.00 0 0 0.00 0 0 658.56 44005.63 25886 0.00 941.38 554
22-Mar-13 0 0 0 0.00 13907.74 8181 0.00 0 0 0.00 0 0 659.08 44664.71 26273 0.00 941.38 554
23-Mar-13 0 0 0 0.00 13907.74 8181 0.00 0 0 0.00 0 0 681.60 45346.31 26674 0.00 941.38 554
25-Mar-13 0 0 0 0.00 13907.74 8181 0.00 0 0 0.00 0 0 406.50 45752.81 26913 0.00 941.38 554
26-Mar-13 0 0 0 0.00 13907.74 8181 0.00 0 0 0.00 0 0 609.18 46361.99 27272 0.00 941.38 554
27-Mar-13 0 0 0 0.00 13907.74 8181 0.00 0 0 0.00 0 0 1002.62 47364.61 27862 0.00 941.38 554
28-Mar-13 0 0 0 0.00 13907.74 8181 0.00 0 0 0.00 0 0 510.36 47874.97 28162 0.00 941.38 554
Month of Mar 0 234.24 0.00 0.00 15,592.23 0.00
Date
Puketutu Managed Fill Site Three Kings Managed Fill Site Greenmount Managed Fill Site Wiri Disposal Site (Rock) Redvale Disposal Site
Cummulative total Cummulative total Cummulative total Cummulative total Cummulative total Cummulative total
Wiri Disposal Site (Cleanfill)
AC Monthly Report Mar 2013.docx Page 21 28 April 2013
5.9. Erosion and Sediment Control Monitoring
Erosion and sediment control devices constructed this month, were as-built and certified in accordance
with the approved CESCPs and consent conditions, with documentation sent to Auckland Council as
follows :
CESCP No. 23, Silt fence at CY9 7th March 2013
CESCP No. 29, Sewer creek crossing – sand bag dams 11th March 2013
CESCP No. 16, As-built SSF reinstalled to construct subsoil outlet 12th March 2013
CESCP No. 29, Sewer creek crossing – culvert and sandbag wingwalls 12th March 2013
CESCP No. 22, Temporary Bridge 20th February 2013
CESCP No. 29, Sewer creek crossing – culvert and sandbag wingwalls 22nd February 2013
CESCP No. 22, Stream diversion B – sandbag dams for overpumping 25th March 2013
CESCPs submitted and/or approved by Auckland Council during month of March
CESCP No. 29 – Sewer crossing of Oakley Creek Outlet
CESCP No. 103 – Site works north and south of Oakly Inlet
Daily visits to areas of the site have been made during March by a member of the Erosion and Sediment
Control Team.
Weekly Erosion and sediment control internal inspections of the northern and southern construction
areas were undertaken on the 7th, 14th, 21st and 28th of March.
5.10. Archaeological monitoring
No archaeological monitoring or investigations have been undertaken this month.
All earthworks in areas of the Northern Portal that have not previously been earthworked, along with
archaeological monitoring under General Authority 2013/174 are now complete.
General Authority 2013/518 for works in association with Stage 4 Great North Road Interchange Works
(Section 14 of the Historic Places Act) was received on 11th April. In accordance with Authority Condition
1, this authority will not be exercised for fifteen working days from the receipt of the authority, being the
6th May.
6. Stakeholder Management
6.1. Stakeholders – selected local liaison activity
Northern works area (Waterview)
• Strategic communications plan for the North completed
• Detailed communications / advertising campaign to manage Easter Road works
Two Construction Updates delivered to residents in Waterview and local community hubs / cafes in
waterview / Pt Chev, keeping locals informed on what’s happening on site
March 2013 Environmental Report
AC Monthly Report Mar 2013.docx Page 22 28 April 2013
• Community liaison meeting participation
• Arranging for Waterview school students to paint a mural on the noise wall on the fringe of the
schools grounds
• Collaborating with the Waterview Coffee Project – strategizing and implementing stage one of the
container café/community hub
• Community BBQ at Waterview Reserve (also attended by The Coffee Project, Neighbourhood
Safety Group)
• Attended friends of Oakley Creek clean-up day
• Attendance at the Waterview Neighbourhood Safety Panel meeting
• Community Liaison Group meeting – Update on door-knocking, pedestrian improvements and
archaeological findings
• Ongoing regular meetings with Waterview School
• Manurewa Youth Development Group – Visit and talk by Engineers
Southern Works area (Owairaka / New Windsor)
• Door knocking/ letterbox drop and meeting with Valonia Street and Methuen Road residents to
advise of Valonia Wetlands test drilling and blasting
• Ongoing discussions with Valonia Street and Methuen Road residents to provide update in relation
to decision on whether to blast Valonia Wetlands or rock break
• Meeting with owners of Avondale Motor Park to discuss security and update on project works
• Meeting with local Methuen Road resident to discuss burlary concern and gain an update on recent
activities and providing update to the Police and Red Badge.
• Various meeting with Christ the King Church, Modern Chairs and Richardson Tavern advising them
of work and changes relating to Richardson Road
• Letterbox drop/ meeting Richardson Road residents to discuss night closure works, traffic switch/
footpath/ pavement reinstatement works and realignment of Richardson Road
• Attendance and introduction of WCA and project to Mt Roskill Business Association
• Attendance and meeting with Education Liaison Group to discuss strategy and future arrangements
in relation to updating schools on project
• Community Liaison Group meeting – site visit and update on project
• Fortnightly distribution of Construction Updates to local residents / businesses / cafes / libraries /
community centres / banks.
6.2. Queries, Concerns and Complaints
While we recorded a total of 11 individual complaints through March, many of these were either
unrelated to our project or were anticipated from previous interactions. The narrative below outlines why
we believe a truer analysis would be that two genuine complaints were received (below), alongside a
further two queries around noise and vibration.
Four of these complaints came from a single resident on Hendon Ave, well-known to the project team,
covering noise, dust and blasting – and all referred to either unrelated or fully compliant activities.
March 2013 Environmental Report
AC Monthly Report Mar 2013.docx Page 23 28 April 2013
Two complaints, the lack of available local drinking water stations and the state of the new Waterview
Reserve, were forwarded to the local board as these fall within their jurisdiction. A further two
complaints were about noise and vibration, which on investigation appeared to be unsubstantiated by
any related construction activity, while another referred to speeding trucks not associated with the
project.
Two complaints were fielded about potential property damage around our southern works site. In both
cases we have carried instructed independent consultants to carry out follow-up condition surveys, and
we are awaiting their findings to allow us to close these out.
March 2013 Environmental Report
AC Monthly Report Mar 2013.docx Page 24 28 April 2013
Appendix A
0 m distance
30.00
35.00
40.00
45.00
Jan-12 Mar-12 May-12 Jul-12 Sep-12 Nov-12 Jan-13 Mar-13 May-13
Rela
tive
Leve
l (m
)
Date
Vibrating Wire BH1102
BH1102 10m Manual Monitoring BH1102 14m Manual Monitoring BH1102 10m Continuous Monitoring BH1102 14m Continuous Monitoring Ground Level
Note - different start date
0 m distance
30.0
35.0
40.0
45.0
Oct-09 Jan-10 Jun-10 Oct-10 Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13
Rela
tive
Leve
l (m
)
Date
Stand Pipe BE10A-BH531
Ground Level BH531 14.5-17m Continuous Monitoring BH531 8.5-12m Manual Monitoring BH531 14.5-17m Manual Monitoring
0 m distance
30.0
35.0
40.0
45.0
Oct-09 Jan-10 Jun-10 Oct-10 Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13
Rela
tive
Leve
l (m
)
Date
Stand Pipe AU10B-DH821 (Cluster)
Ground Level DH821b 9.5-12m Continuous Monitoring DH821c 3.5-7m Continuous Monitoring
DH821a 20.5-27m Manual Monitoring DH821b 9.5-12m Manual Monitoring DH821c 3.5-7m Manual Monitoring
12 m distancereplaces DH828
25.00
30.00
35.00
40.00
45.00Ja
n-12
Mar
-12
May
-12
Jul-1
2
Sep-
12
Nov
-12
Jan-
13
Mar
-13
May
-13
Rela
tive
Leve
l (m
)
Date
Vibrating Wire BHB1 (SPZ005)
BHB1.iii 12m Manual Monitoring BHB1.ii 13.5m Manual MonitoringBHB1.i 18m Manual Monitoring BHB1.iii 12m Continuous MonitoringBHB1.i 13.5m Continuous Monitoring BHB1.i 18m Continuous Monitoring
Note - different start date.
20 m distancereplaces BH501
Note - different start date.
20.00
25.00
30.00
35.00
40.00
45.00Ja
n-12
Mar
-12
May
-12
Jul-1
2
Sep-
12
Nov
-12
Jan-
13
Mar
-13
May
-13
Rela
tive
Leve
l (m
)
Date
Vibrating Wire BHA4 (SPZ004)
BHA4.iii 13m Manual Monitoring BHA4.ii 14.5m Manual MonitoringBHA4.i 29m Manual Monitoring BHA4.iii 13m Continuous MonitoringBHA4.i 14.5m Continuous Monitoring BHA4.i 29m Continuous Monitoring
27 m distance
30.00
35.00
40.00
45.00
Jan-12 Mar-12 May-12 Jul-12 Sep-12 Nov-12 Jan-13 Mar-13 May-13
Rela
tive
Leve
l (m
)
Date
Vibrating Wire BH1101
BH1101 5m Manual Monitoring BH1101 10m Manual Monitoring BH1101 5m Continuous Monitoring BH1101 10m Continuous Monitoring Ground Level
27 m distance
30.0
35.0
40.0
45.0
Jan-12 Mar-12 May-12 Jul-12 Sep-12 Nov-12 Jan-13 Mar-13 May-13
Rela
tive
Leve
l (m
)
Date
Stand Pipe BE10A-BH532
Ground_Level BH532 11.5-14.5m Manual Monitoring
Pipes extended
30 m distancereplaces DH824
30.00
35.00
40.00
45.00Ja
n-12
Mar
-12
May
-12
Jul-1
2
Sep-
12
Nov
-12
Jan-
13
Mar
-13
May
-13
Rela
tive
Leve
l (m
)
Date
Vibrating Wire BHB4 (SPZ008)
BHB4.iii 6m Manual Monitoring BHB4.ii 12.5m Manual Monitoring BHB4.i 19m Manual Monitoring
BHB4.iii 6m Continuous Monitoring BHB4.i 12.5m Continuous Monitoring BHB4.i 19m Continuous Monitoring
Ground Level
32 m distance
30.0
35.0
40.0
45.0
Oct-09 Jan-10 Jun-10 Oct-10 Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13
Rela
tive
Leve
l (m
)
Date
Stand Pipe AU10B-DH819 (Cluster)
Ground_Level DH819a 10.5-15m Manual Monitoring DH819b 4-6.5m Manual Monitoring DH819c 1.5-3m Manual Monitoring Base_SP_3m
Pipes extended
43 m distance
25.0
30.0
35.0
40.0
45.0
Oct-09 Jan-10 Jun-10 Oct-10 Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13
Rela
tive
Leve
l (m
)
Date
Stand Pipe BE10A-BH502
Ground_Level BH502 6-7.9m Manual Monitoring BH502 25-30m Manual Monitoring Base_SP_7.9m
45 m distance
25.0
30.0
35.0
40.0
45.0
Oct-09 Jan-10 Jun-10 Oct-10 Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13
Rela
tive
Leve
l (m
)
Date
Stand Pipe BE10A-BH524 (Cluster)
Ground_Level BH524a 21.7-25m Manual Monitoring BH524b 5.3-9.5m Manual Monitoring Base_SP_9.5m
54 m distance
35.0
40.0
45.0
50.0
55.0
Oct-09 Jan-10 Jun-10 Oct-10 Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13
Rela
tive
Leve
l (m
)
Date
Vibrating Wire AU10B-DH820
Ground_Level DH820 2.5m Manual Monitoring DH820 5m Manual Monitoring DH820 12m Manual Monitoring Tip_Depth_2.5m Tip_Depth_5m
55 m distance
30.00
35.00
40.00
45.00
Oct-09 Jan-10 Jun-10 Oct-10 Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13
Rela
tive
Leve
l (m
)
Date
Vibrating Wire AU10B-DH817a
Ground Level DH817a 7m Continuous Monitoring DH817a 18m Continuous Monitoring DH817a 7m Manual Monitoring DH817a 18m Manual Monitoring
55 m distance
30.0
35.0
40.0
45.0
Oct-09 Jan-10 Jun-10 Oct-10 Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13
Rela
tive
Leve
l (m
)
Date
Stand Pipe AU10B-DH817b
Ground_Level DH817b 1.5-5m Manual Monitoring Base_SP_5m
74 m distance
30.00
35.00
40.00
45.00
Jan-12 Mar-12 May-12 Jul-12 Sep-12 Nov-12 Jan-13 Mar-13 May-13
Rela
tive
Leve
l (m
)
Date
Vibrating Wire BH1104
BH1104 5m Manual Monitoring BH1104 8m Manual MonitoringBH1104 20m Manual Monitoring BH1104 5m Continuous MonitoringBH1104 8m Continuous Monitoring BH1104 20m Continuous Monitoring
78 m distance
35.0
40.0
45.0
50.0
55.0
Oct-09 Jan-10 Jun-10 Oct-10 Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13
Rela
tive
Leve
l (m
)
Date
Vibrating Wire AU10B-DH816
Ground_Level DH816 3.5m Manual Monitoring DH816 12m Manual Monitoring Tip_Depth_3.5m Tip_Depth_12m
96 m distance
30.00
35.00
40.00
45.00
Oct-09 Jan-10 Jun-10 Oct-10 Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13
Rela
tive
Leve
l (m
)
Date
Vibrating Wire AU10B-DH823a
Ground Level DH823a 13m Continuous Monitoring DH823a 16.5m Continuous Monitoring DH823a 27m Continuous Monitoring
DH823a 13m Manual Monitoring DH823a 16.5m Manual Monitoring DH823a 37m Manual Monitoring
96 m distance
30.0
35.0
40.0
45.0
Oct-09 Jan-10 Jun-10 Oct-10 Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13
Rela
tive
Leve
l (m
)
Date
Stand Pipe AU10B-DH823b
Ground_Level DH823b 6.5-9m Manual Monitoring Base_SP_9m
105 m distance
30.00
35.00
40.00
45.00
Jan-12 Mar-12 May-12 Jul-12 Sep-12 Nov-12 Jan-13 Mar-13 May-13
Rela
tive
Leve
l (m
)
Date
Vibrating Wire BH1105
BH1105 5m Manual Monitoring BH1105 8m Manual Monitoring BH1105 20m Manual MonitoringBH1105 5m Continuous Monitoring BH1105 8m Continuous Monitoring BH1105 20m Continuous MonitoringGround Level
112 m distance
30.00
35.00
40.00
45.00
Oct-09 Jan-10 Jun-10 Oct-10 Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13
Rela
tive
Leve
l (m
)
Date
Vibrating Wire AU10B-DH829
Ground Level DH829 10m Continuous Monitoring DH829 13m Continuous Monitoring
DH829 40m Continuous Monitoring DH829 8m Manual Monitoring DH829 13m Manual Monitoring
DH829 40m Manual Monitoring Pak 'n' Save Pump Test Start Pak 'n' Save Pump Test End
157 m distance
30.0
35.0
40.0
45.0
Aug-09 Dec-09 Apr-10 Aug-10 Dec-10 Apr-11 Aug-11 Dec-11 Apr-12 Aug-12 Dec-12 May-13 Aug-13
Rela
tive
Leve
l (m
)
Date
Vibrating Wire BE10A-BH525 (Cluster)
Ground_Level BH525a 24m Manual Monitoring BH525b 9m Manual Monitoring Tip_Depth_9m
132 m distance
20.0
25.0
30.0
35.0
40.0
45.0
Aug-09 Dec-09 Apr-10 Aug-10 Dec-10 Apr-11 Aug-11 Dec-11 Apr-12 Aug-12 Dec-12 Apr-13 Aug-13
Rela
tive
Leve
l (m
)
Date
Vibrating Wire BE10A-BH503 (Cluster)
Ground_Level BH503a 40m Manual Monitoring BH503b 4m Manual Monitoring
Tip_Depth_4m Start Pak n Save Pumping Test End Pak n Save Pumping Test
135 m distance
30.00
35.00
40.00
45.00
Jan-12 Mar-12 May-12 Jul-12 Sep-12 Nov-12 Jan-13 Mar-13 May-13
Rela
tive
Leve
l (m
)
Date
Vibrating Wire BH1106
BH1106 13m Manual Monitoring BH1106 15m Manual Monitoring BH1106 20.2m Manual MonitoringBH1106 13m Continuous Monitoring BH1106 15m Continuous Monitoring BH1106 20.2m Continuous MonitoringGround Level
136 m distance
30.0
35.0
40.0
45.0
Oct-09 Jan-10 Jun-10 Oct-10 Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13
Rela
tive
Leve
l (m
)
Date
Stand Pipe BE10A-BH519 (Cluster)
Ground Level BH519a 21-25m Continuous Monitoring BH519b 6.5-11m Continuous Monitoring
BH519a 21-25m Manual Monitoring BH519b 6.5-11 Manual Monitoring
146 m distance
30.00
35.00
40.00
45.00
Jan-12 Mar-12 May-12 Jul-12 Sep-12 Nov-12 Jan-13 Mar-13 May-13
Rela
tive
Leve
l (m
)
Date
Vibrating Wire BH1100
BH1100 10.7m Manual Monitoring BH1100 15.5m Manual Monitoring BH1100 10.7m Continuous Monitoring
BH1100 15.5m Continuous Monitoring Ground Level
150 m distance
30.00
35.00
40.00
45.00
Jan-12 Mar-12 May-12 Jul-12 Sep-12 Nov-12 Jan-13 Mar-13 May-13
Rela
tive
Leve
l (m
)
Date
Vibrating Wire BH1103
BH1103 11m Manual Monitoring BH1103 15m Manual Monitoring BH1103 11m Continuous Monitoring BH1103 15m Continuous Monitoring Ground Level
160 m distance
30.0
35.0
40.0
45.0
Oct-09 Jan-10 Jun-10 Oct-10 Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13
Rela
tive
Leve
l (m
)
Date
Stand Pipe AU10B-DH818 (Cluster)
Ground_Level DH818a 14-18m Manual Monitoring DH818b 1-3.5m Manual Monitoring Base_SP_3.5m
212 m distance
30.00
35.00
40.00
45.00
Jan-12 Mar-12 May-12 Jul-12 Sep-12 Nov-12 Jan-13 Mar-13 May-13
Rela
tive
Leve
l (m
)
Date
Vibrating Wire BH1108
BH1108 15m Manual Monitoring BH1108 20m Manual MonitoringBH1108 15m Continuous Monitoring BH1108 20m Continuous MonitoringGround Level
245 m distance
30.00
35.00
40.00
45.00
Jan-12 Mar-12 May-12 Jul-12 Sep-12 Nov-12 Jan-13 Mar-13 May-13
Rela
tive
Leve
l (m
)
Date
Vibrating Wire BH1107
BH1107 21.5m Manual Monitoring BH1107 30m Manual MonitoringBH1107 21.5m Continuous Monitoring BH1107 30m Continuous MonitoringGround Level
-15.0
-10.0
-5.0
0.0
5.0
10.0
15.0Sep 2010 Dec 2010 Mar 2011 Jun 2011 Sep 2011 Dec 2011 Mar 2012 Jun 2012 Sep 2012 Dec 2012 Mar 2013
Defo
rmat
ion
from
Ado
pted
Pre
cons
truc
tion
Min
imum
(mm
)
Date
Settlement Markers within 150 m of the SAT
J7
L7
M6
M7
X13
X15
X16
X18
Z142
Z152
Z154
Z155
Z156
X25
X26
X26a
X27
Z27
Z28
Z30All below trigger levels for markers within 150 m of the trench
-15.0
-10.0
-5.0
0.0
5.0
10.0
15.0Sep-10 Mar-11 Sep-11 Mar-12 Sep-12 Mar-13 Sep-13
Axis
Titl
e
Date
Control Section LSouthern Approach Trench - Active Dewatering
L1
L10
L2
L3
L4
L5
L6
L7
L8
L9
+ve reading indicates settlement / subsidence, -ve reading indicates rise
-15.0
-10.0
-5.0
0.0
5.0
10.0
15.0Sep-10 Mar-11 Sep-11 Mar-12 Sep-12 Mar-13 Sep-13
Mar
ker M
ovem
ent (
mm
)
Date
Control Section MSouthern Approach Trench - Active Dewatering
M1
M10
M2
M4
M5
M6
M7
M8
M9
+ve reading indicates settlement / subsidence, -ve reading indicates rise
-15.0
-10.0
-5.0
0.0
5.0
10.0
15.0Sep-10 Mar-11 Sep-11 Mar-12 Sep-12 Mar-13 Sep-13
Mar
ker M
ovem
ent (
mm
)
Date
Additional Monitoring Markers (X)Southern Approach Trench - Active Dewatering
X1
X10
X11
X12
X13
X14
X15
X16
X17
X18
X19
X2
X20
X21
X22
X23
X24
X25
X26
X26A
X27
X28
X29
+ve reading indicates settlement / subsidence, -ve reading indicates rise