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Construction Environment Management PlanCrib Point Pakenham Pipeline Project

[APPENDIX J TO PIPELINE CONSTRUCTION ENVIRONMENT MANAGEMENT PLAN]

J Performance objectives and standardsThe following performance standards address the environmental impacts and risks and legal requirements for the Project. The standards cover design, management and mitigation measures. Monitoring and contingency plans are also detailed. The performance objectives and standards outlined in Table 9-A are general across the Project and are applicable to all activities undertaken on the site. Performance standards applicable to specific activities are further outlined below. Table 9-A: Performance standards (all activities)

Performance Standards – all activities

Objective To plan and manage environmental impacts associated with the proposed construction activities.

Target Conformance with the relevant limits and controls specified in this performance standard.

Application

The duration of the proposed works across all areas.

Ref Environmental Controls Project Phase

Site access and property management

A1 All project activity and construction works are to be confined to the identified route and confirmed alignment. No activity will occur outside this area unless approved under existing conditions.

Construction

A2 Prior to any works commencing on a property, agreements with the landowners and occupiers regarding the use of existing roads or tracks, the selection of new access routes and any property-specific measures to implement during construction and operations, such asa. Access across the ROW during constructionb. Stock management, access and exclusion

Pre-construction

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c. Management of overland flowd. Biosecuritye. Relocation / duplication of facilities and infrastructuref. Planting and screening vegetation.

A3 Crossing water infrastructureMethods and timing of construction for crossings of water transfer infrastructure will be agreed with the landholders, occupiers and/or operators of the system prior to any works commencing on the property.

Pre-construction

A4 Management of third party services Prior agreements will be made with the affected third parties where the interruption of identified third party services cannot be reasonably avoided.

Pre-construction

A5 Landowners and occupiers will be informed of the construction commencement, and details of the proposed construction programme, in accordance with the Consultation Plan

Pre-constructionConstruction

A6 Any requirements noted in landowner agreements with APA will be met. Pre-

constructionConstructionPost-construction

A7 A Site plan is to form part of the site induction and be available to site supervisors at all times during construction. The Site plan will clearly delineate the site, access points and sensitive areas (e.g. native vegetation) in or adjacent to the site.


A8 A Traffic Management Plan (TMP), approved by the relevant local government authorities and VicRoads, will be in place prior to the commencement of construction. The TMP will include the following:- stakeholder and communications arrangements- Public transport and school bus disruption management- Level crossing audit requirements for the level crossing adjacent to Frankston-Flinders Road - Road safety audit requirements- Pavement strength survey and condition assessment requirements

Pre-construction

A9 Restricted vehicle movementsAfter arrival at the Project site, all construction vehicles and plant will remain within the construction footprint or on

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public roads and designated access tracks, unless undertaking survey or property management activities with prior agreement of the land owner.

A10 Vehicles and plant will be checked daily to ensure that combustible materials such as grass and debris do not build up in areas where ignition may occur.

Construction

A11 Vehicle and pedestrian access Where vehicle and pedestrian access are altered during construction, vehicle and pedestrian access will be replaced, in accordance with relevant road design standards and in consultation with landholders and any other relevant third parties.

Post- construction

A12 Suitably qualified contractors

Contractor(s) that are suitably qualified and experienced in trenchless installation techniques and piling installation will be used.

Construction

A13 Materials and finishes

Selection of materials and finishes will appropriately respond to the environment and be complementary to the setting.

Pre-Construction

A14 Reflective surfaces

Reflective surfaces on infrastructure will be minimised to reduce reflection of artificial light where practicable.

Construction

Air, Noise & Vibration Management

E1 Speed limit within the site boundary including access tracks restricted to a maximum of 40kph.

Construction

E2 Activities will be managed onsite to ensure dust is not a hazard. Observational monitoring of dust will be undertaken along the construction right of way (ROW) where adjacent to sensitive receptors, including monitoring of fine particulates.Management/control measures proportionate to the level of risk must be put in place to minimise risk of generation. Control measures used may include:• Water carts used on unsealed work areas; • crushed rock placed on existing permanent unsealed access

tracks where agreed with relevant stakeholders • Water spray units used on soil stockpiles and during the loaded

and unloaded of dust generating materials .i.e. soil/sand/fill and

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aggregates; and• Vehicle loads covered when carrying dust (or litter) generating

material.

Dust suppression activities are to be undertaken as directed by the APA Construction Manager, who will take the following factors into consideration:• Weather patterns; hot, dry, windy forecasts; • Ground cover .i.e. exposed surfaces;• Type and moisture content of soil present; and• Type of activities being conducted, such as vehicle movement,

vegetation clearing and excavation.

E3 If all available methods of dust stabilisation fail to suppress dust and dust emissions are evident beyond the Site boundary, the APA Construction Manager will temporarily modify or suspend dust generating activities until conditions subside.

Construction

E4 Vehicles, plant and machinery will be maintained in good working order to minimise air emissions that may cause nuisance and so that noise and vibration do not exceed the manufacturer’s specifications.

Construction

E5 Construction may occur up to 24 hours a day, 7 days a week. Normal working hours will be between 7 am and 6 pm weekdays and 7 am to 1 pm Saturday. Where, for practical reasons, out-of-hours work is unavoidable, it must only occur with prior approval by the APA Construction Supervisor and affected residents must be notified at least 24 hours before the out of hours work commences.

Construction

E6 Managing noise from construction activitiesConstruction noise and vibration will be managed with reference to Section 2 (Construction and Demolition Site Noise) of EPA Publication 1254 Noise Control Guidelines and Section 5 (Noise and vibration) of EPA Publication 480 Environmental Guidelines for Major Construction Sites. This includes the development of a plan to manage noise and vibration during construction in consultation with the EPA.The plan will be include:

• critical works through townships or other sensitive regions affected by the pipeline works including Hastings;

• site specific noise controls to be implemented at the HDD locations listed in Performance D9; and

• an appropriate stakeholder communication strategy that incorporates the complaint management procedures and includes prior communication advice and notices to affected

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residents, with assessment conducted prior to any night works taking place.

The plan will also include the following general good practice techniques: Using the lowest-noise work practices and equipment that

meet the requirements of the job. Locating and positioning site buildings, access roads and plant

to minimise noise disturbance at the locality. Installing broadband reversing alarms on construction vehicles

and machinery in preference to 'beeper' reversing alarms. The site will also be planned to minimise the need for reversing of vehicles.

Turning off plant and vehicles when not being used. Taking care not to drop spoil and construction materials that

cause peak noise events.Where the construction noise and/or vibration levels are predicted or measured to be exceeded at sensitive receptor locations, noise reduction measures proportionate to the level of risk of impacting on a sensitive receptor will be included in the planning and design of the Project activities. These may include, but are not limited to, the following: Adopting engineering noise controls at the source (e.g.

silencer, mufflers, enclosures) by the best practical means using current technology – Expected reduction of 10 dB to 15 dB.

Installation of onsite barriers such as hoardings or temporary enclosures to provide a noise barrier between any particularly noisy construction works and the residences - Expected reduction of 5 dB to 10 dB.

Limiting normal works between 6am and 7am to the arrival of staff on site, toolbox meetings and pre-work checks. The use of loud equipment, generation of unnecessary noise and the movement of vehicles on the construction footprint will be minimised outside normal working hours.

Respite periods by restricting the hours that the very noisy activities can occur.

E7 Offsite noise management measuresOffsite management measures will be considered where measured or predicted construction noise exceeds the following noise management levels for an extended period of time at sensitive receptors.Levels in the following table are not noise limits but represents a threshold that triggers an action to minimise the noise impact at the


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receptor after all reasonable and feasible measures have been implemented to manage construction noise impacts onsite.

Time periodNoise management

levels Management measuresLAeq (15 min)

EPA Normal working hoursMon-Fri: 6am - 6pm

External construction noise level:

Works notification

Sat: 6am - 6pm LAeq(15min) > 75dB(A)

EPA Evening/weekend hours and public holidaysMon-Fri: 6pm - 10pm


Works notificationIndividual briefingsSpecific notificationRespite offer

LAeq(15min) > LA90, Evening + 10 dB

Sat: 6pm - 10pm Sun/Public Holiday: 6pm - 10pm

EPA Night hoursMon-Sun: 10pm - 6am


Works notificationIndividual briefingsSpecific notificationRespite offer

LAeq(15min) > LA90, night + 5 dB

EPA Unavoidable works at nightMon-Sun: 10pm - 6am


Targeted engagement with impacted landholders to discuss individual mitigation options.Options include:-Provision of ear plugs or noise cancelling headphones-offer of respite-offer of temporary relocation in accordance with a Project relocation policy.

LAeq(15min) > 55 dBNoise will be predicted or measured above 55 dB(A) for two or more nights to justify the application of management measures.Residents with special requirements will be consulted with on a case to case basis.

E8 Out of hours work will be scheduled in consideration of other projects occurring in the area to reduce cumulative noise impactsThe EPA and the proponents of the projects listed below will be consulted during detailed design and the construction planning phase for the purpose of managing cumulative noise impacts associated with the following projects:

• Pakenham East rail depot construction and operation


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(Department of Transport)• Healesville-Koo Wee Rup Road upgrade construction

(Major Road Projects Victoria and the principal contractor)

• Crib Point Jetty upgrade construction works (Port of Hastings Development Authority)

• Crib Point Jetty operation (United Petroleum).

E9 Vibration safe working distances. Where driven piling, vibratory compaction or other activity causing high levels of vibration are planned, safe working distances will be derived using the values in the following standards: British Standard BS 6472-1:2008 Guide to evaluation of human

exposure to vibration in buildings. Vibration sources other than blasting – Table 1 Vibration dose value ranges which might result in various probabilities of adverse comment within residential buildings

German Standard DIN4150-3:2016-12: Table 1 – Guideline values for vibration velocity for evaluating the effects of short-term vibration on structures

German Standard DIN4150-3:2016-12: Table 3 – Guideline values for vibration velocity for evaluating the effects of short-term vibration on buried pipework

An asset owner’s utility standards.Where occupancies, structures and assets are within the derived safe working distance, additional management measures will investigated and implemented. These may include, but are not limited to: Selecting equipment that would emit lower levels of vibration Consultation with above and below ground utility asset owners

to establish construction vibration limits to maintain asset integrity

Vibration monitoring of sensitive buildings Conditions survey off sensitive buildings and assets within safe

working distances.


E10

Noise and vibration monitoringNoise and/or vibration monitoring spot checks will be undertaken during construction at: The nearest noise sensitive residential property or properties

impacted by out-of-hours works to confirm compliance with project noise targets.

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The nearest building or assets that are within 50 metres of driven piling, vibratory compaction or other activity causing high levels of vibration.

Where an asset owner’s utility standards are at risk of being exceeded.

In the event of a complaint regarding noise in relation to an ongoing activity.

A response plan will be developed to manage potential impacts if nominated targets are exceeded, including: Any actions taken to rectify the exceedance. Actions to minimise risk of reoccurrence. Name of person(s) responsible for undertaking the required

actions. The type and duration of any further monitoring to be

undertaken.

Biodiversity

B1 All vegetation clearing works will be confined to the RoW. The boundary of the RoW will be clearly demarcated with survey pegs. If there is any loss of native vegetation outside of the RoW, it will be replaced.

Construction

B2 Clearing of native vegetation will be offset in accordance with the Guidelines for the removal, destruction or lopping of native vegetation (DELWP 2017) prior to the clearing commencing.


B3 No native vegetation to be retained will be cleared. Environmental features to be retained within or directly adjacent to, the construction footprint, will be clearly demarcated and identified on site (Attachment G – Environmental Line List).


B4 Reduce right of wayThe width of the right of way is reduced at environmentally sensitive locations as identified in Attachment G – Environmental Line List

Pre-construction

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B5 Branches of trees on the edge of the RoW, but overhanging into construction / activity areas, will be trimmed as necessary by a qualified arborist.

Construction

B6 Woody vegetation, trees and hollows to be removed are to be inspected for fauna by a suitably qualified wildlife handler immediately prior to removal. This will include:

A walk-through/visual inspection of the habitat to be removed immediately prior to clearance to flush out fauna and capture and relocate.

Advise on clearing techniques that minimise fauna impact.

Keep records of important fauna interactions, listing the species concerned, the nature of the interaction and GPS coordinates.

Construction

B7 Work areas, particularly excavations and open trench, are to be visually inspected for fauna at the start of each work day and any trapped fauna removed.

Construction

B8 Native fauna are to be relocated by a qualified and authorised fauna handler only. Records of all relocations will be retained.

Construction

B9 Welded pipe strings are to be end capped to prevent fauna entry

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B10 Swamp Skink

Where areas of Swamp Skink habitat are identified in the Environmental Line List (Attachment G), the following measures will be taken to reduce impacts:

Clear and grade activities will occur preferentially in warmer months (late Spring to early Autumn) when skinks are more active and better able to avoid activities.

A fauna handler will complete an inspection of the habitat area immediately prior to any vegetation removal (including ground cover).

If clear and grade occurs during cooler months, when skinks may be in burrows (April to September or as determined by a fauna ecologist), a fauna handler will be present during topsoil stripping to monitor the area and inspect stripped material.

A fauna handler will complete an inspection of topsoil and vegetation stockpiles prior to respreading.

Erosion and sediment controls and temporary fencing will be inspected for sheltering skinks prior to removal.

Any individuals captured during the inspections described above will be relocated to the nearest adjacent habitat away from the construction area.

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B11 Southern Brown BandicootFollowing clearing, fencing suitable to exclude the Southern Brown Bandicoot will be installed at the edges of the construction footprint where it is adjacent to any of the of Southern Brown Bandicoot habitat areas identified in the Environmental Line List (attachment G) to reduce the likelihood of animals entering the construction footprint. Monitoring of fencing will be undertaken and repairs completed as required.

In the event that Southern Brown Bandicoot are discovered within the construction footprint, all mobile construction equipment in the surrounding area will cease work, excluding use of light vehicles to move staff to and from the area. Mobile construction equipment will not recommence work until a wildlife handler has removed the individual or it has been confirmed that individual has left the workspace. Captured individuals will be removed and relocated to nearest adjacent habitat away from the construction area.

If night time activities are required within or adjacent to any of the identified locations of Southern Brown Bandicoot habitat, a wildlife handler will be available to the construction site.

See also reinstatement standards.

Construction

B12 Merran's Sun-orchid, Pallid Sun-orchid and Gaping Sun-orchidKnown Merran's Sun-orchids, Pallid Sun-orchids and Gaping Sun-orchids will be avoided, with the locations (Environmental Line LIst- attachment G) clearly demarcated within the ROW and activities that may cause impact excluded to ensure no indirect or accidental impacts.

If further individuals are identified within areas of planned impact, a relocation protocol will be developed in consultation with DELWP.


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B13 Growling Grass Frog The following mitigation measures will be implemented to manage impacts to the Growling Grass Frog:a. Two nocturnal pre-clearance surveys of the construction

footprint for the Growling Grass Frog (as per Commonwealth of Australia 2009c) will be undertaken at each of the following locations within four days prior to clear and grade activities commencing, but only if clear and grade activities at these locations are to occur during the breeding season (spring and summer):

a. Farm Dam adjacent to KP21.5: KP21.4 to KP21.6b. Western Outfall Drain: KP 30.8. to KP 31.8c. Cardinia Creek: between KP 39.9 and the

western cadastral boundary of Crown Allotment 24A Parish of Koo Wee Rup

d. Cardinia Creek: section of the access track linking to Ballarto Road, where it lies directly adjacent to Lot 1 Title Plan 828572X

e. Lower Gum Scrub Creek, Deep Creek and Toomuc Creek: KP 40.8 to KP 40.9

f. Lower Gum Scrub Creek, Deep Creek and Toomuc Creek: between the eastern cadastral boundary of Crown Allotment 97F Parish of Nar-nar-goon and KP 41.5

b. Any Growling Grass Frog that can be located within the proposed construction footprint during these surveys will be relocated to suitable locations, as determined by the ecologist conducting the survey, within the adjacent waterways.

c. If night time activities are required during the breeding season (spring and summer) within the survey areas described in (a) ), a wildlife handler will be available to the construction site.

d. Hygiene protocols as set out in Murray et al. (2011) will be followed when conducting the surveys described in (a).

Construction

B14 Lighting impacts to faunaLight generated during construction will be managed in general accordance with the guidance measures described in National Light Pollution Guidelines for Wildlife Including Marine Turtles, Seabirds and Migratory Shorebirds.

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Cultural heritage

CH1 Cultural heritage will be managed in accordance with the Cultural Heritage Management Plans (CHMPs 15383 and 15384)

Pre-constructionConstructionPost-construction

CH2 Where required by the project’s Cultural Heritage Management Plan (CHMP #155874), areas of cultural heritage significance will be avoided (e.g. reduced ROW, realignment or trenchless construction). Refer to CHMPs 15383 and 15384 for details.


CH3 Construction areas will be demarcated with survey pegs, fencing or other markers to ensure works are limited to the approved CHMP Activity Areas.

Pre-construction

CH4 Areas of cultural heritage significance to be avoided will be shown on site plans.

Pre-construction

CH5 Areas of cultural heritage significance to be avoided will be fenced and signed in accordance with the requirements of the CHMP.

Pre-construction

CH6 Cultural heritage artefacts will be salvaged prior to ground disturbance in accordance with any CHMP requirements.

Pre-construction

CH7 Should cultural heritage artefacts be found during the project, the Cultural Heritage accidental finds protocol in the relevant CHMP will be followed

Construction

Historic heritage

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HH1 Condition surveys and monitoring (former BP refinery administration building H1016)A condition survey of the Victorian Heritage Register site (Former BP refinery administration building H1016, as identified in the Environmental Line List (attachment G)), will be undertaken prior to commencing and following completion of construction. Any damage deemed to have resulted from the Project will be rectified.


HH2 Horizontal directional drillingSubject to further detailed geotechnical investigations confirming suitability, trenchless construction techniques will be used to minimise direct impacts on historic heritage values at the Denham Road farmhouse (VHI site H7921-0119), as identified in the Environmental Line List (Attachment G).

Construction

HH3 Unexpected finds procedureShould an unknown historic heritage site, value or object be discovered during construction, the Contingency Plan for unexpected historic heritage finds will be followed (refer to Section 6.1).

Construction

Biosecurity

S1 All vehicles and plant, including third parties, will be clean prior to arrival to the site consistent with A Guide for Machinery Hygiene for Civil Construction (Civil Contractor’s Federation, 2011). Weed and seed inspections are to be completed for all vehicles and plant on arrival, with a record of the inspection to remain with the vehicle.


S2 The project will comply with Australian Quarantine and Inspection Service (AQIS) regulatory requirements for any vehicles, equipment or materials sourced from overseas.

Pre-construction

S3 A baseline weed survey of the ROW will be completed prior to construction to identify locations of existing weed infestations

Pre-construction

S4 Construction activities will occur in accordance with relevant elements of existing property specific biosecurity plans which landholders operate under.

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S5 If an area of Cinnamon Fungus Phytophthora cinnamomi dieback is identified within the ROW, biosecurity clean-down locations will be established at the exits to the area. Clean-down will be required for vehicles, machinery and personnel clothing exiting the area. This will involve the following steps: scrape off soil (clumps, lumps and thick caked on soil),

manure and organic material from vehicles, machinery and personnel clothing with a shovel and/or hard bristled brush.

Spray/rinse with Phytoclean areas that have contacted soil.

These locations and requirements will be communicated to all personnel.

Construction

S6 Vehicles and plant are to be free of soil clumps and sods prior to exit from site.

Construction

Surface water and Groundwater

G1 Facilities designThe Pakenham Delivery Facility will be designed to maintain existing overland flow paths and not result in increased flood risk upstream of the site.

Pre-construction

G2 Water Sensitive Urban Design (WSUD) treatmentsWSUD treatments will be incorporated into the site design for the Pakenham Delivery Facility to capture surface runoff and reduce pollutants in accordance with the Best Practice Environmental Management Guidelines (CSIRO 1999).

Pre-construction

G3 Sourcing of groundwater for construction supply (if required) will be in accordance with Section 50 Licence to take and use water of the Water Act 1989.

Construction

G4 An up to date bore search will be undertaken prior to construction to identify any new bores that have the potential to be affected by the works.If a groundwater bore is impacted by construction activities, the location, condition and functionality of the bore will be visually confirmed and make-good arrangements will be agreed in consultation with affected landholders, if required.

Construction Post-construction

Fuels & chemicals

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F1 Dangerous goods, as defined by the Australian Dangerous Goods Code, and flammable and combustible liquids will be stored and handled in accordance with all relevant Australian Standards including but not limited to the requirements of: Australian Standards AS1940, AS1210, AS4343,

AS3846, AS2941, AS/NZS60079; EPA Publication 347: Bunding Guidelines; EPA Victoria Publication 1698 – Liquid Storage and

Handling Guidelines Victorian Worksafe Codes of Practice; Manufacturer’s instructions; and Relevant safety data sheets.

Pre-constructionConstruction Post-Construction

F2 The following measures will be implemented to ensure that fuel and chemical storage is safe and spilt liquids do not cause environmental harm: The type and volume of liquid material (fuel, oil,

lubricant) stored on-site for construction activities is to be limited to only that which is required.

Liquid material will not be stored within 50 m of waterways.

All liquid material will be stored within containment facilities (e.g. bunded areas, leak proof trays) at a designated area(s) within the site.


F3 Safety data sheets will be available for reference for all fuels and chemicals at the storage location.


F4 Spill kits will be available at all locations where machinery/plant are operating, refuelling points and fuel and chemical storage locations.

Refuelling of vehicles and machinery (excluding hand held machines) on the ROW will:

a) be undertaken with appropriate measures to contain spills;

b) utilise auto shut off valves; and

c) not occur within 50m of a watercourse.


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F5 Where flammable or combustible chemicals are required to be stored on-site, fire-fighting equipment proportionate to the risk of the materials stored will be available for the duration of the material storage.


F6 Fire extinguishers (complying with relevant Australian Standards) are to be provided and validated in all construction vehicles

Construction

F7 Only qualified and trained personnel with knowledge of appropriate personnel protective equipment, chemical handling, spill response and recovery procedures will handle chemicals within the site.


F8 Diesel generators will be bunded. Construction

F9 Vehicles/plant/machinery/equipment will be maintained in good condition to minimise the potential for leaks/spills to occur


F10 Daily vehicle and equipment inspections will be undertaken to check for oil, lubricant or fuel leaks and general wear and tear of hoses.


F11 Monitoring of chemical and fuel storage facilitiesVisual monitoring of chemicals and fuel storage facilities will be undertaken as part of routine operational practices, with inspections completed weekly.


F12 Should a spill/release occur the Contingency Plan for Chemical/Fuel Spill Response will be followed (refer to Section 6.1).


Waste

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W1 Waste will be managed in accordance with Environment Protection (Industrial Waste Resource) Regulations 2009, including establishment of appropriate and secured waste storage locations on-site, as required.

Construction

W2 Waste management will comply with the EPA waste hierarchy - waste avoidance, waste re-use, waste recycling, and waste disposal.

Construction

W3 Identification of suitable waste disposal locations will occur prior to construction commencing in consultation with licenced waste contractors.

Construction

W4 The work site will be kept free of litter and waste.Waste containers will be located at each worksite to enable collection of waste, with regular removal from worksites to designated storage areas. Waste containers will be available for different types of waste generated.Refuse containers will be lidded to mitigate fauna access

Construction

W5 Liquids, such as sump oil, diesel and kerosene that cannot be reused are to be placed in labelled regulated waste drums. A licensed contractor will collect it for recycling or licensed disposal.

Construction

W6 Disposal of any waste contaminated soil will be undertaken in accordance with EPA Publications IWRG 821: Waste Transport Certificates and IWRG 822: Waste Codes and will require the use of EPA-registered trucks for transport of the soil to appropriately licensed landfills. Contaminated soil will be remediated or disposed of at an EPA approved facility in accordance with EPA waste disposal guidelines.

Construction

W7 Portable toilet facilities will be available for work construction crews at designated locations. Toilets will be self-bunded portables. Clearing of portable toilet facilities, including waste collection and disposal, must be by a licensed waste contractor.

Construction

W8 Where excess soils, including HDD screened cuttings, are required to be disposed off-site, these will be sampled and categorised in accordance with EPA Victoria Publications IWRG702 – Soil Sampling and IWRG621 – Soil Hazard Categorisation and Management.

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W9 Drilling muds will be disposed in accordance with Environment Protection (Industrial Waste Resource) Regulations 2009 and EPA Victoria Industrial Waste – Classification for Drilling Mud, Victoria Government Gazette G37.

Records of HDD mud disposal will be maintained and kept for 2 years as per the EPA Victoria Industrial Waste – Classification for Drilling Mud.

Construction

W10 Appropriate receptacles provided and used for cigarette butt disposal.

Construction

Sustainability and greenhouse gas

SG1 Source local materials and labourLocally sourced materials, including those provided by suppliers, will be considered and implemented where they are of comparable quality and utility. Contractors will provide reasonable opportunity for subcontractors and labour from regions local to the Site (including, without limitation, the shires of Casey, Cardinia and Mornington Peninsula) to be engaged on the Works.


SG2 Low embodied energy materialsLow embodied energy materials (e.g. substituting concrete mixes) will be considered and used where they are of comparable quality and utility.


SG3 Managing the quality of materialsThe quality of key materials (i.e. pipe and pipe fittings) will be inspected before supplying to site or ROW for installation to avoid additional transport and handling of materials.


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Table 9-B: Performance standards (Clear and Grade, Right of Way Maintenance)

Performance Standards – clear and grade, Right Of Way Maintenance

Objective To plan and manage environmental impacts associated with the proposed clear and grade, and right of way maintenance activities.

Target Retain soils and maintain soil condition. No sedimentation of water outside of the designated work areas.

Application

During clear and grade activities and through construction to reinstatement.

Ref. Environmental Controls Project Phase

C1 Vegetation will be cleared prior to stripping of topsoil. Construction

C2 Topsoil will not be stripped when saturated. Construction

C3 Topsoil will be stripped across the construction footprint to maximum depths determined during pre-construction surveys.

Construction

C4 Stripped topsoil will be stockpiled separately from woody material and subsoil stockpiles.

Construction

C5 Topsoil stockpile heights will not exceed two metres. Construction

C6 Gaps in the linear topsoil stockpiles will be left at appropriate intervals for the movement of vehicles and fauna through the site.

Construction

C7 Soil stockpiles will be managed to reduce impacts to surface water runoff: the creation of a continuous row of stockpiled materials

that cause water to pond on the upstream side will be avoided.

where drainage lines intersect the RoW, flow diversion measures will be placed upstream of soil stockpiles.

surface water runoff from external catchments will be directed through regular gaps in soil stockpiles where ESC are installed to allow runoff to pass over the RoW at a controlled location without causing erosion.

Construction

C8 Topsoil stockpiles, other than linear stockpiles on the ROW, will be clearly signposted.

Construction

C9 ESC will be established immediately after clear and grade activities.

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C10 Erosion and sediment controls (ESC) for the site will be implemented in accordance with EPA Publication 275: Construction Techniques for Sediment Pollution Control.

Construction

C11 Construction will be restricted during heavy wet weather and during wetter months in low lying areas and will be stopped if working conditions are causing excessive compaction and surface rutting.

Construction

C12 The weather reports and warning services will be monitored in order to efficiently plan construction works and review the capacity of erosion and sediment controls.

Construction

C13 Diversion measures and ESC devices will be checked prior to forecast rain events to ensure these are maintained in good condition.

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Table 9-C: Performance standards (Trench management)Performance Standards – trench management

Objective To plan and manage environmental impacts associated with the proposed trenching activities and other excavations.

Target Maintain soil condition. No contamination of soils or groundwater.

Application

During trenching, padding and backfill activities.


T1 Identification of third party servicesAll third party services within the easement, including on farm infrastructure, will be identified and marked on the ground in advance of trenching activities.

Construction

T2 Stockpiles of trench spoil will be separate from topsoil. Construction

T3 Excavated pits and trench to have fauna egress points and fauna shelters not more than 250m apart

Construction

T4 The duration that trench sections and bell holes are open will be minimised to reduce the potential for poor quality runoff impacting groundwater.

Construction

T5 Dewatering Non-contaminated groundwater and surface runoff that

enters the open trenches and bell holes will be managed in accordance with SEPP (Waters).

Water will be tested for pH and salinity prior to discharge to land. pH will be between 4 and 9, and salinity will not exceed 6,000 µS/cm.

Water that cannot be treated to meet the relevant discharge criteria will be disposed to an EPA Victoria licensed facility.

Dewatering of excavated trenches/bellholes will be managed to minimise sedimentation, including the use of sediment control devices to remove suspended solids and dissipate flow as described in EPA publication 480 (Section 4.4 Dewatering work sites) and EPA publication 275 (Section 16 Water treatment). Sediment control devices may include, but are not limited to:

i. settlement pondsii. floating pump intakesiii. filtered intakes/outlets

Discharge will be to low gradient, stable, grassed areas

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and through ESC systems to prevent scour or erosion. Discharge to land will not occur within 50 metres of

watercourses. Water will not be discharged directly to waterways or

into stormwater drains without prior approval from relevant authorities.

Visual monitoring will be undertaken during discharge to land.

Where groundwater is entering excavations, dewatering activities will be limited to two days or less in trenched sections and HDD tie-in bell holes, and 10 days or less at thrust bore sections and thrust bore bell holes.

T6 Trench breakers will be installed adjacent to watercourses, wetlands and steep slopes as shown in the standard drawing (CPT.2373-DWG-L-0106).

Construction

T7 Compaction of backfill using excavated material will be carried out to reduce the potential for preferential lateral flow along the trench

Construction

T8 Topsoil will not be used as a padding or backfill material. Construction

T9 Any material imported for use as backfill will comply with the EPA Victoria Publication IWRG621 – Soil Hazard Categorisation and Management for ‘Fill Material’, and must be accompanied by relevant documentation confirming its compliance to the ‘Fill Material’ criteria.

Construction

T10 Soil will be visually assessed for possible soil contamination such as discolouration, odours, buried waste and abnormal soil structure.Where potentially contaminated soils (including asbestos containing material) are uncovered during construction, the following measures will be undertaken: Cessation of ground disturbance at the location and

within the immediate vicinity. Assessment of site contamination and determination of

appropriate management actions in consultation with suitably qualified personnel.

If contamination is confirmed, the EPA will be notified as soon as reasonably possible.

Construction

T11 Contaminated SoilsContaminated soil will be managed in accordance with the SEPP (Prevention and Management of Contaminated Land). All Project personnel will be made aware of the

presence of contaminated soils at the locations identified in the Environmental Line List (Attachment G)

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and any new sites as they are identified. An intrusive investigation will be undertaken in the area

between KP7.3 and KP7.9 once vegetation has been cleared, to confirm the presence or absence of contaminated soils, due to historical and existing land uses. Should contamination of soil and/or groundwater be encountered, appropriate management actions will be determined in consultation with suitably qualified personnel.

Construction works during wet weather (i.e. winter and spring e.g. June – September) will be avoided unless conditions are such that contaminated soils and surface water issues can be managed.

Contaminated soils will be left in situ to the extent possible.

Where it is necessary to excavate contaminated soils, they will be stockpiled separately, with containment and treatment measures appropriate to the type of contamination present.

Handling and transport of contaminated spoil for off-site treatment/disposal will be in accordance with Environment Protection (Industrial Waste Resource) Regulations 2009 and waste management standards set out in this EMP.

T12 Contaminated groundwater/trench water Contaminated groundwater/trench water will be

managed in accordance with:– SEPP (Waters)– PFAS National Environmental Management Plan.

All Project personnel will be made aware of the presence of contaminated groundwater containing PFAS east of the former Tyabb landfill (Environmental Line List - Attachment G).

Where there are open excavations adjacent to the former Tyabb landfill site, the excavation will be monitored for landfill gas as part of morning pre-start checks and prior to any hot works commencing.

Disturbance of saturated soil and groundwater within the PFAS affected area will be minimised. The management plan will include measures to prevent migration of PFAS into the surrounding soil or surface water.

An intrusive groundwater investigation will be undertaken in the area between KP7.3 and KP7.9 prior to commencing pipeline construction, to confirm presence or absence of contaminated groundwater within the area, due to historical and existing land uses.

Water from areas that have been identified as contaminated will not be discharged to the environment

Construction

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(land, waterways, sewer). Contaminated water will either be treated onsite,

depending on contaminant encountered (this may require approval from the EPA Victoria) or disposed offsite to an EPA Victoria licensed facility. Alternatively, a construction approach may be adopted where contaminated groundwater is left in-situ (i.e. not abstracted or disturbed).

W here the potential for soil or groundwater contamination has been identified, any imported backfill materials must have similar or lower hydraulic conductivity to the surrounding soils.

T13 All soils are to be managed in accordance with the Acid Sulfate Soils Management Protocol (Attachment Error: Reference source not found).

Construction

T14 A dewatering plan must be developed and provided to DELWP Pipelines Group in circumstances where:

i) more than two days (48 hours) of dewatering is required at a trenched section or HDD tie-in bell-hole, or

ii) more than 10 days (240 hours) of dewatering is required at a thrust bore location, or

iii) exceedance of these durations is anticipated to occur in the course of the works, in which case the dewatering works should cease and groundwater levels allowed to rebound until such time as an approved dewatering plan is prepared.

The dewatering plan should include distance drawdown estimates to assess potential impacts to groundwater users, installation and monitoring of shallow monitoring wells, and/or groundwater ingress mitigation measures.

Construction

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Table 9-D: Performance standards (Watercourse Crossings)Performance Standards – Watercourse crossings

Objective To plan and manage environmental impacts associated with the proposed watercourse crossings.

Target No destabilisation of the watercourse or sedimentation of water outside of the designated work areas.

Application

During the installation of pipe across watercourses.


WC1 Work on a designated watercourse (as identified Attachment G – Environmental Line List), must have a CMA permit for Works on Waterways. All works must be completed in accordance with CMA permit requirements. Work requiring a permit includes, but is not limited to, installation of temporary culverts, vegetation removal and trenchless construction where entry/exit is within 30 m to the watercourse.

Construction

WC2 The proposed design and the work method statements, including HDD profiles where applicable, are to be submitted to Melbourne Water and approved prior to the commencement of works at watercourses managed by Melbourne Water.

Construction

WC3 Watercourse trenchless crossingWhere identified in the environmental line list (Attachment G), trenchless construction methods will be used to avoid open cut construction across flowing watercourses.

Construction

WC4 Watercourse trenchingWhere trenching is undertaken over a watercourse the following mitigation measures will be undertaken: Trenched crossings of ephemeral watercourses will

preferentially be constructed during no or low flow conditions.

Weather forecasts will be monitored to minimize the likelihood of having open trenches at the waterway when high rainfall events are expected.

Where watercourses are trenched, all obstructions to flow will be removed after the pipe has been laid and backfilled.

The pipeline will be assembled and prepared so that it can be immediately installed once the trenching over the watercourse has been undertaken.

The exposed trench within the watercourse and riparian

Construction

26



zones will be reinstated immediately following the installation of the pipeline.

Waterway reinstatement will be designed to avoid future erosion over the pipeline alignment. This may include the use of riprap made of stones to stabilise the waterway.

Temporary ESC will be provided as needed to prevent erosion and scour until the vegetation has established.

Visual monitoring will be undertaken downstream of the trench during flow events if the trench has not been reinstated.

Temporary diversions will be provided if there is permanent or tidal flow in the waterway in accordance with International Erosion Control Association (IECA) Best Practice Erosion and Sediment Control Appendix P: Land-based Pipeline Construction (2008). Flow diversion measures may include pumps to ensure that water can be moved from one side of trench to the other, screened inlets (or other appropriate equipment) to minimise the entrapment of aquatic fauna and outlet structures that are designed to avoid scouring of the channel.

WC5 No above-ground grit blasting will occur within 10m to top of bank of a watercourse

Construction

WC6 Soil and other materials will not be stockpiled near waterways. Material will be located away from the top of banks so that there is no restriction to the flow conveyance area.

Construction

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Table 9-E: Performance standards (HDD and Horizontal Boring)Performance Standards – Horizontal Directional Drilling & Thrust Boring

Objective To plan and manage environmental impacts associated with the proposed HDD and thrust boring activities.

Target No loss of material or contamination of land or water outside of the designated work areas.

Application

During the installation of HDD and thrust bored crossings.


D1 For HDDs, the drill profile design, the work method statement and the proposed volumetric drilling fluid tracking program, including proposed intervention levels, is to be submitted to DELWP and approved prior to the commencement of HDD activities.

Pre-construction

D2 An Inspection and Test Plan will be developed to ensure quality control during the HDD activities.

Pre-construction

D3 Earth bunds and drainage channels will be placed around the upper edges of drill sites and work areas, to divert natural run-off around and away from the site so that it doesn’t mix with drilling compound runoff.

Construction (HDD Activities)

D4 Sump pits will be constructed at the bottom of the drill site. The sump pit will be positioned (during site planning) so as all runoff from the drilling compound will flow into it. The sump pit is to be of such dimensions to provide a buffer for the drilling fluid returns. An earth bund will be placed around the sump pit to contain any spillage.


D5 The sump pit will be pumped out into the mud system at the end of drilling each day.


D6 A volumetric drilling fluid tracking program will be implemented to monitor fluid use during drilling operations with defined levels for fluid loss, stop works and further investigation.


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D7 Drilling will preferentially use non-toxic (e.g. bentonite) and/or biodegradable drilling muds, where geotechnical conditions allow.


D8 Appropriate spill response and clean-up equipment (e.g. sandbags, vac-truck) will be on-site during HDD activities. If a spill/release occurs the Contingency Plan for Chemical Spill response (refer to Section 6.1) will be implemented.


D9 HDD noise control

A minimum of 10 dB noise reduction will be installed adjacent to the following HDD sites: HDD Location 3: Warringine Park (northern work site) HDD Location 4: Along the railway corridor, southern

end of Hastings HDD Location 5: Along the railway corridor, northern

end of Hastings HDD Location 6: Beneath Kings Creek along the railway

corridor.Stationary equipment such as generators and pumps will be stored within shipping containers or suitable acoustic enclosures at all HDD locations. The impacts and the design of site-specific mitigation will be determined prior to construction works via acoustic modelling and confirmed during construction via onsite monitoring.


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Table 9-F: Performance standards (Hot works)Performance Standards – Hot works

Objective To plan and manage environmental impacts associated with hot works during construction of the new pipeline.

Target No hot works impacts to land or property. No non-conformance with these performance standards.

Application

The duration of pipeline construction.


F1 Hot-works will only be undertaken on non-vegetated/cleared areas with a minimum of 5m to combustible materials. A fire response unit will be in place next to the works for the duration of any hot works with a capacity of not less than 1000L with a dedicated spotter.

Construction

F2 During the CFA declared Fire Danger Period, hot works must comply with CFA restrictions: a fire-resistant shield or guard is in place to stop sparks,

hot metal or slag an area at least 1.5 metres from the operation is clear of

flammable material or wetted down sufficiently to prevent the spread of fire

a hose connected to a reticulated water supply or water spray knapsack containing at least 9 litres of water

all cut-offs and hot materials from the operation are placed in fire-proof containers

a person is in attendance at all times while the fire is alight (hot work in progress) and has the capacity and means to extinguish the fire

the fire is completely extinguished before the person leaves.

Where the requirements of EMP management standard F1 are more stringent, they will take precedence.

Construction

F3 On Total Fire Ban Days, any hot works must have a CFA Section 40 permit in place and must comply with the conditions of the permit.

Construction

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Table 9-G: Performance standards (hydrostatic testing)Performance Standards – Cleaning, hydrostatic testing

Objective To plan and manage environmental impacts associated with the cleaning and hydrotesting of the new pipeline.

Target No adverse impacts to land or water from cleaning, hydostatic testing. No non-conformance with this performance standard or complaint from landowners or occupiers.

Application The duration of the cleaning, hydrotesting activities.


H1 Prior to hydrostatic testing, the pipeline will be pre-cleaned to remove weld debris, dust and surface scale. Produced waste water will be captured in a temporary pit or bunded area and removed by an EPA licenced waste contractor.

Post -construction

H2 All hydrotesting operations will conform to AS2885.5: Gas and liquid petroleum - Field pressure testing.

Post -construction

H3 Where the hydrotest schedule allows, water will be reused to conserve water and minimise the number of discharge locations.

Post -construction

H4 If oxygen scavengers and biocides are used during hydrostatic testing, they will be neutralised before disposal, in accordance with manufacturer guidelines, to ensure that the water is free from any remaining active biocide and oxygen scavengers before discharge to land.

Post -construction

H5 Water will be sampled and analysed by a NATA accredited laboratory to ensure that no biocides (sodium hydroxide, tetrakis(hydroxymethyl) phosphonium sulfate) and oxygen scavengers (ammonium bisulfite) are detected, and to establish an adequate method of disposal or reuse, after the hydrostatic testing water is no longer needed.

Post -construction

H6 Hydrostatic test water discharge will only be undertaken where water designated for release into the environment is of a quality that is within relevant statutory water quality guidelines. Relevant landholder(s) will be consulted prior to any discharge of hydrostatic test water to land.

Post -construction

H7 Dams and hydrostatic test water may remain for landholders’ beneficial use with landholder and regulatory approval if water quality requirements are met.

Post -construction

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H8 Where hydrostatic test water is not consistent with relevant statutory water quality guidelines, hydrostatic test water will be removed by an EPA licenced waste contractor.

Post -construction

H9 Any discharge of hydrotest water will not result in soil erosion or sedimentation of land or water. Sediment control devices to remove suspended solids such as geotextile fabric filters will be used. No direct discharge will occur to watercourses or drains.

Post -construction

H10 Pumps and compressors used for hydrotesting and pigging activities will be muffled to reduce noise in accordance with the EPA Environmental Guidelines for Major Construction Sites, Publication 480 and Noise Control Guidelines, Publication 1254.

Post -construction

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Table 9-H: Performance standards (reinstatement)Performance Standards – Reinstatement

Objective To allow for the return of the land to its previous land use and capacity.

Target Landowner/occupier satisfaction with completion of works and timely rectification of any defects.

Application The duration of the proposed reinstatement works and the identified defects liability period.


R1 Project activities will be progressed sequentially, with clean-up, restoration and rehabilitation as soon as installation activities are complete unless weather conditions prevent this.

Construction

R2 Stockpiled topsoil and sub soils will be reinstated to depths consistent with the original soil horizons.

Construction

R3 Topsoil will not be respread for rehabilitation when saturated.

Construction

R4 Soil inversion will be avoided during respreading of topsoil Construction

R5 The site will be reinstated to pre-existing contours with natural drainage lines restored and protected if required as determined by post construction assessments.

Construction

R6 Any topsoil imported for reinstatement or easement maintenance will be of an appropriate quality and as agreed with the landholder.

ConstructionPost- Construction

R7 Soil surfaces that have been compacted due to construction activities, such as those subject to traffic and/or storage areas within the site, will be ripped to allow the topsoil to bind with the subsoil and increase water filtration.

Construction

R8 Where required as determined by post construction assessments and in consultation with the landholder, Soil amelioration and fertiliser will be applied will be undertaken as part of the reinstatement activities.

Post -construction

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R9 Seeding for revegetation and soil stabilisationWhere seeding is adopted to facilitate prompt revegetation and soil stabilisation, the following principles will be considered: Seed mixtures to be formulated with consideration of

the vegetation composition of the areas adjacent to the construction footprint and in consultation with the relevant landholder. Only certified seed to be used.

Sterile seed stock (cover crop) may be used to provide short term surface stability.

Seed to be evenly dispersed over the disturbed area. Seeding to take place as soon after reinstatement of the

soil profile as the weather allows.

Post -construction

R10 If weather conditions prevent the prompt reseeding of the disturbed areas within the site (refer to R6), controls will be put in place, monitored and maintained to manage erosion and sedimentation until such time reseeding can occur and soils are stabilised.

Post -construction

R11 Reinstatement of infrastructureAll access tracks, fences and gates will be reinstated post construction in consultation with landholders and any relevant third parties.

Post -construction

R12 Habitat features removed during construction such as large hollow logs and large rocks will be returned to the ROW during rehabilitation if consistent with rehabilitation objectives at a particular location. Landholder requirements will be considered prior to returning habitat features to the ROW

Post -construction

R13 Rehabilitation by assisted natural regeneration will be undertaken on the ROW, except within four metres of the pipeline, in areas where there is an increased risk of habitat fragmentation (as identified in the Environmental Line List (Attachment G)).

Post -construction

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R14 The following measures will be implemented to reinstate area of Southern Brown Bandicoot habitat as identified in the Environmental Line Lis (Attachment G): Dense cover of suitable native shrubs or vegetation of

similar structure will be reinstated, other than directly above the pipeline and a narrow track to allow ground access for surveillance patrols. Easement agreements with landholders will require that this vegetation be reinstated and protected.

Rapid re-establishment of dense ground cover will be achieved at any of the sites of known or assumed presence for the Southern Brown Bandicoot impacted by the construction footprint, but not subject to HDD, by planting of semi-mature native shrubs, or fast-growing tubestock, at an appropriate density during rehabilitation. The aim is to re-establish dense understory vegetation in the 0.2–1m height range.

Post -construction

R15 In consultation with landowners and occupiers, targeted control of weeds will be undertaken by a qualified pest plant control contractor to ensure that the site does not have an increased density and distribution of noxious and agricultural weeds relative to adjacent areas

Post -construction

R16 Following completion of reinstatement, written agreement will be sought from landowners (and occupiers, managers or government agencies as applicable) of the satisfaction of the reinstatement works.

Post -construction

R17 Following the completion of reinstatement activities, the site will be monitored for a period of 12 months to ensure the land is stable, consistent with adjacent areas and vegetated with site appropriate vegetation. Any defects from construction will be rectified during this time and following this period any residual environmental issues will be addressed through the APA’s Operating Environmental Management Plan.

Post -construction

R18 Following the landowners written agreement of acceptance of the reinstatement works (R16) or the expiry of the 12 month defect liability period (R17), APA will seek the return of the rehabilitation bond for the works from DELWP.

Post -construction

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