DIAL BEFORE YOU WORK AND STAY SAFE
Transmission pipelines in the Auckland urban area 02
High pressure natural gas and petroleum product transmission pipelines are one of the safest and most efficient ways of transporting these energy resources.
However, like all forms of transporting energy they must be treated with respect so that accidents can be prevented. This booklet provides information about the First Gas owned and managed transmission pipelines in urban Auckland, such as, the pipeline locations, safety features and what do in the unlikely event of an emergency. It also provides information about the safe working practices and procedures that must be followed when working near transmission pipelines. The pipeline owners take pipeline safety seriously and utilise many resources to ensure that the pipelines are protected. The greatest risk to pipelines is damage by third parties, most commonly the use of excavation and thrust boring equipment. You can help us keep the pipelines safe by following our work and safety procedures, and looking out for any digging activity or heavy machinery operating in the vicinity of the pipelines. 03
CONTENTS
Transmission pipelines in Auckland...... 04
Auckland pipeline routes...... 04
Transmission pipeline locations...... 06
Pipeline safety features and protection...... 07
Scrub fires over buried pipelines...... 08
Working safely around transmission pipelines...... 08
Your legal obligations...... 09
Pipeline Easement Permits...... 09
Recognising a transmission pipeline leak...... 10
What to do in an emergency...... 11
Emergency works on other utilities...... 12
Report all damage to transmission pipelines...... 12
Contact us...... 13
Disclaimer...... 13
Urban Auckland transmission pipeline route maps and map index are located at the back of the booklet. 04
TRANSMISSION PIPELINES IN AUCKLAND
In urban Auckland there are four natural gas and petroleum product high pressure transmission pipelines, which are owned and independently operated by separate companies: • First Gas operates the natural gas pipeline • Refining NZ operates an oil pipeline • Wiri Oil Services Ltd (WOSL) operates an aviation fuel pipeline • Liquigas Ltd operates a LPG pipeline First Gas, Refining NZ, WOSL and Liquigas own their respective pipelines and operate them independently. First Gas, by agreement, is responsible for the routine surveillance and permitting on these pipelines.
AUCKLAND PIPELINE ROUTES
First Gas’ natural gas pipeline travels: • From Taranaki to Papakura, Auckland. From Papakura the pipeline travels through to Manukau and across the Tamaki Estuary into the main delivery point at Westfield. • From Westfield it then passes along the northern shore of the Manukau Harbour, through Hillsborough, Blockhouse Bay, New Lynn, Glen Eden, Henderson Valley and then north to Whangarei. • A short pipeline also travels from Waiouru Road, East Tamaki, across Otara Creek to the Otahuhu Power Station.
TRANSMISSION PIPELINES Dial before you work 0800 800 393 05
Refining NZ’s oil pipeline from Marsden Point Refinery travels: • South from Marsden Point, in a common trench with the First Gas natural gas pipeline, entering the Auckland urban area at Henderson Valley, then through Glen Eden, New Lynn and Blockhouse Bay until it reaches Hillsborough. • From Hillsborough, the oil pipeline separates from the gas pipeline and crosses the Manukau Harbour, then travels south of Mangere to the oil terminal at Wiri.
WOSL’s aviation fuel pipeline from Wiri to Auckland Airport travels: • From the Wiri Oil Terminal to Auckland Airport. The pipeline shares the trench with the Refining NZ line until Puhinui Road and traverses beside Puhinui Road to the Auckland International Airport.
Liquigas’ LPG pipeline travels: • From the Marine Terminal across the Manukau Harbour & tidal lands, through the Council Reserve, across Otara Creek to McLaughlins Road, traversing the road to the Liquigas Storage Facility at Wiri.
Route maps which indicate the location of all FOUR pipelines in Auckland are provided at the back of this booklet. 06
TRANSMISSION PIPELINE LOCATIONS
Transmission pipelines are located in registered easements located on private property and in the road reserve. Easement widths do vary but they are generally 12 metres wide for a single pipeline and increase by four metres for each additional pipeline. In urban Auckland the pipelines are predominantly located in the berm or carriageway in the road reserve. The locations of the transmission pipelines are clearly marked. The signs are an indication only and a pipeline easement permit must be obtained before any excavations can commence. Look out for: • Danger signs on kerbs, street lights and power poles in urban areas • Danger signs and painted posts on fences in rural areas • White triangular warning signs at pipeline river and harbour crossings Transmission pipelines are buried with a minimum coverage of 900mm. This can vary as alterations to the ground cover may reduce or increase depths. Pipelines are usually laid with marker tape above the pipe. Be aware the tape may have shifted over time.
Never assume you know exactly where the pipeline is located – always contact us.
HIGH PRESSURE PIPELINE BURIED NEARBY. DO NOT DIG FOR AUTHORISATION PHONE FIRST GAS 0800 800 393
TRANSMISSION PIPELINES Dial before you work 0800 800 393 07
PIPELINE SAFETY FEATURES AND PROTECTION
At First Gas we take pipeline safety seriously and utilise many resources to ensure that pipelines are protected from the hazards of corrosion, ground movement and external interference. All First Gas pipelines comply with or exceed international codes and standards accepted by New Zealand authorities. A number of safety features have been incorporated into the design, construction and operation of the transmission pipeline system including: • Regular ground and air patrols to identify potential hazards or any indications of a leak. This includes a daily road patrol along the route of the pipelines in the Auckland urban area. • All pipelines are buried with a minimum coverage of 900mm to minimise the risk of damage or interference. • Danger signs are attached to street poles and kerbs to indicate the proximity of the pipelines and provide a contact phone number, and marker tape is laid in the backfill above each pipeline. • Pipe used in the construction of pipelines is fabricated from steel. All pipeline joints are welded and all welds x-rayed. The finished pipe is pressure tested in excess of the maximum operating pressures after construction. • The pipelines are protected against corrosion by a combination of low voltage impressed current and a protective wrapping. A regular monitoring programme allows any fault that may develop to be detected. • Safety valves are strategically placed along the length of the pipelines to enable sections of the pipeline to be isolated in the unlikely event of an emergency. • Each pipeline has an integrity monitoring system that can detect malfunctions and initiate automatic shutdowns. 08
SCRUB FIRES OVER BURIED PIPELINES
The design and burying of pipelines incorporates many inherent safety factors, one of which is protection from heat generated as scrub and bush fires pass over pipeline easements. Emergency Services will be aware of pipelines routes and normally contact Pipeline Operators if fires are in the vicinity as a matter of good communication, with the pipelines continuing to operate safely as normal. If you have additional concerns please call 0800 800 393.
WORKING SAFELY AROUND TRANSMISSION PIPELINES
Any work which may affect the integrity of a pipeline or the surrounding easement must be approved by First Gas. Although transmission pipelines are buried, accidents can still occur. Before you start work call us on 0800 800 393. This number is a quick and easy way to access all the services we provide free of charge, to help you work safely around transmission pipelines. These services include: • Pipeline location services • On-site supervision • Pipeline Easement Permits are required by all parties who intend to work near a transmission pipeline • Pipeline safety awareness seminars on request
To help you we need at least two working days notice. This service is for your own safety, the safety of people in the area in which you are working and the INTEGRITY of the pipeline. 09
YOUR LEGAL OBLIGATIONS
WorkSafe has set down minimum safe work practices for carrying out any work near pipelines. See its ‘Guide for Safety with Underground Services’. There are also laws and regulations that specify safe working practices, which must be followed. The Health and Safety at Work Act 2015 requires people working near a pipeline to take all practicable steps to ensure their own safety or prevent harm to any other person. Anyone who damages a pipeline as a result of unsafe work practices may be found in breach of the act and liable for prosecution by WorkSafe. First Gas may take legal action to recover both the cost of repairs and the cost of lost business from any party or parties responsible for damaging our pipelines.
PIPELINE EASEMENT PERMITS
Pipeline Easement Permits are issued by First Gas to authorise and control all works that could damage or endanger a transmission pipeline. The issue of Pipeline Easement Permits is a free service. You must obtain a permit for all works near a transmission pipeline, this includes: • Drain construction and cleaning • All excavation works • Laying or working on other services • Under-boring • Removing or increasing soil cover • Building construction • Operating heavy machinery • Fencing • Planting and deep ripping • Blasting
TRANSMISSION PIPELINES Dial before you work 0800 800 393 10
We will meet you at the site on the day the work is to be undertaken to locate and identify the pipeline, and then issue you with a pipeline easement permit. We’ll need at least two working days notice of the proposed work (more time for larger projects). The pipeline easement permit sets out the minimum safety conditions applicable to the proposed work which you must adhere to. NEVER commence work without a permit, or you could be liable for any damage to the pipeline and the surrounding easement. To get your pipeline easement permit contact First Gas on: Phone 0800 800 393, Fax 06 759 6494 Email [email protected] Or write to First Gas, Private Bag 2020, New Plymouth
RECOGNISING A TRANSMISSION PIPELINE LEAK
Despite all precautions, leaks can occur in pipeline systems. Any escaping gas or liquid is potentially dangerous and warrants caution and immediate action when discovered. If you suspect there is a pipeline leak call First Gas immediately on 0800 734 567. Gas leaks can be detected by: • Smell • Dead or dying vegetation NOTE: Not all gas • The noise of escaping gas in pipelines has • A visible gas vapour that characteristic • The ground near the pipeline natural gas odour. may be frozen
TRANSMISSION PIPELINES Dial before you work 0800 800 393 11
Oil leaks can be detected by: • Smell (petroleum odour) • Dead or dying vegetation • Visible oil fluid • Fog like vapour
A small leak may do no more than moisten the surrounding soil but a large leak may create a pool of liquid.
WHAT TO DO IN AN EMERGENCY
If you hit a gas or oil pipeline, or suspect a leak: • Switch off all machinery and remove all sources of ignition, including mobile phones • Move yourself and others at least 100 metres up wind to a safe distance • Report the emergency by calling First Gas on 0800 734 567 • Call the fire service on 111 • Leave the damaged pipe to vent • DO NOT start any vehicles for removal • DO NOT attempt to extinguish ignited gas • DO NOT try to cover the damaged pipe with any material, including digger buckets • DO NOT inhale oil fumes • Remember any damage to gas pipes, even if the pipe is not leaking, should be reported to First Gas 12
EMERGENCY WORKS ON OTHER UTILITIES
If you are undertaking emergency works on other utilities, such as broken phone lines, contact First Gas immediately on 0800 734 567. Every effort will be made to get personnel to the site as soon as possible. If the emergency works must commence prior to First Gas arriving at the site, use hand tools when digging below 400mm.
REPORT ALL DAMAGE TO TRANSMISSION PIPELINES
In the event of any damage, no matter how minor it may appear, it is essential that you notify First Gas immediately. Any damage to the coating or denting of the pipe could seriously impact the integrity or shorten the life of the pipeline. Never try to repair the pipeline yourself. Repairs must only be made under First Gas supervision or by a First Gas representative. You can help us keep the pipelines safe by reporting any pipeline exposure, damage, ground movement or signs of defects that could put the pipelines at risk. Call First Gas on 0800 734 567.
TRANSMISSION PIPELINES Dial before you work 0800 800 393 13
CONTACT US
For more information, on-site supervision and pipeline easement permits: • Call 0800 800 393 • Fax 06 759 6494 • Email [email protected] • Or write to First Gas, Private Bag 2020, New Plymouth In an emergency call First Gas on 0800 734 567 then fire service on 111.
DISCLAIMER
First Gas Limited does not accept any liability for any information contained in this document. None of First Gas Limited or its related companies: • Accept liability for any loss or damage suffered or incurred by the recipient of this document, or any other person or entity however caused (including negligence) relating in any way to this document including, without limitation, the information contained in it or any errors in or omissions from it, or the recipient, or any other person or entity, placing any reliance on this document, its accuracy, completeness, currency or reliability. • Accept any responsibility, arising in any way, for any errors in or omissions from this document, or for any lack of accuracy, completeness, currency or reliability of this document. • Accept any responsibility to inform the recipient of any matter arising or coming to their notice that may affect any matter referred to in this document.
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A P MAP 1 MAP Transmission pipeline maps for the Auckland urban area
Map Index
Dual oil & gas pipelines
Gas pipeline
Oil pipeline
Aviation fuel pipeline
LPG pipeline