Andrew Trilford has over 10 years of experience as a poly welder and dewatering technician working on mine sites. He has worked for companies such as BHP Billiton, FMG, Rio Tinto, and Regis Resources. He has extensive experience stringing, welding, and installing poly pipes between 50mm to 355mm for dewatering systems. He is proficient in welding techniques such as butt welding, electrofusion welding, and extrusion welding. He also has experience operating various heavy equipment such as backhoes, excavators, and telehandlers. He maintains all necessary certifications and is committed to safe work practices.

1. Andrew Trilford
andrewtrilford@gmail.com
0433 799 829
Site Inductions
BHP Billiton
WAIO - 2015
Yandi - 2015
Eastern Ridge - 2015
Rio Tinto
Marandoo 2012
FMG
Exploration - 2014
Regis Resources
Aditya Birla
Birla Nifty - 2012
Crescent Gold Limited -
2010
Education
Napier Boys High School -
Year 10
Professional Profile
A dedicated and proactive professional Poly Welder & Dewatering Technician, committed to growing my
experience and skill set enabling me the opportunity to contribute and become a valued asset. I highly regard
stability and room for advancement. The wealth of knowledge I have developed over time has enabled me to
adapt and learn quickly, allowing me to problem solve and complete tasks efficiently. I am committed to safe
work practice and routinely manage hazards effectively.
Certifications & Tickets
 WL1454209 - High Risk Work Licence - C6, DG, LF Exp. 31/10/2019
 5370424 - HR License Exp. 11/03/2016
 RIIHAN309A – Conduct Telehandler Operations
 RIIVEH305A - Operate & Maintain a 4wd Vehicle
 RIIOHS204A - Work Safely at Heights
 RIIMPO208A - Conduct Backhoe Operations
 RIIMPO318B - Conduct Skid Steer Operations
 RIIMPO301C - Conduct Excavator Operations
 FPICOT2239A - Trim & Cut Felled Trees Chainsaw Ticket
 MSAPMOHS216A - Operate Breathing Apparatus
 Qualification stamp no: XLT Q0702
 PMBROD287B - Weld Plastics Materials
 PMBWELD301B - Butt Weld Polyethylene Plastic Pipelines
 PMBWELD302B - Electrofusion Weld Polyethylene Pipelines
 PMBWELD309B - Weld Plastic using Extrusion Techniques
Career Summary
07/2015 – 08/2015 Dewatering Technician BHP Billiton - Yandi
10/2014 – 04/2015 Dewatering Technician BHP Billiton - Eastern Ridge
05/2014 – 10/2014 Polywelder / Groundwater Technician FMG Exploration
03/2013 – 04/2014 Maintainer / Water Technician BHP Billiton / NPI Water - Newman
10/2012 – 03/2013 Dewatering Poly Welder Regis Resources
05/2012 – 10/2012 Dewatering Technician Rio Tinto - Marandoo MMP2
07/2010 – 05/2012 Dewatering Technician Birla Nifty Copper Operations
01/2008 – 03/2010 Maint. All-Rounder / Dewatering Operator Crescent Gold Limited
Key Strengths
Safety First Approach
– Plan ahead to ensure completion all projects without incident
Time Management
– Can manage conflicting priorities to deliver my work on time
Team Player
– Can work constructively as part of a team or as an individual

2. Specialist Tools
Leister Fusion 3C Extrusion
Welder
Leister Weldplast 1
Extrusion Welder
Dixon HF630, HF350,
EHF350, HF225 BUTT
Welding Machine
Dixon 110 Welder
Omisa SP315 EV2 Butt
Welding machine
Ritmo 200 Basic Butt
Welder
Ritmo Electra 800
Electrofusion Machine
Beat Electrofusion
Machine
Leister Astro Wedge
Welder
Makita Orbital Routers
Leister Roller and
Extrusion kits
Drop saws 12 inch
Oxy-acetylene sets
MIG/ARC welders
Grinders 4-5 inch
Dumpy levels
Laser leveler
Rivet machines
Rotor broach
Pedestal drill
Hole saws
Linisher
Pedestal grinders
Chainsaws
Reciprocating saws
Concrete cutters
Hand saw
Lever hoists
Layflat rollers
Podgers
Stilsons
Enerpacs
Experience
July 2015 - August 2015
Dewatering Technician
BHP Billiton - Yandi
 Bolt up 400mm to 200mm HDPE in pit bore manifolds eastern pit.
 Butt weld 200mm spools for manifolds (Dixon HF 225).
 Butt weld 400mm trunk line to discharge up pit wall (Dixon HF 630).
 Relocate (Godwin cd150m) dry Vac sump pumps for drill & blast schedule.
 Change out pressure cleaner pump and motor unit on pressure washer trailer.
 Daily service truck run sumps/bores/Gensets.
 Eastern pit/central pit/western pit piezometer readings.
 BHP Billiton WAIO towing/sparing of pipe procedures adhered to on all tasks.
October 2014 - April 2015
Dewatering Technician
BHP Billiton - Eastern Ridge
 Retrieval of fixed and mobile bore installations for scheduled drill & blast.
 Pontoon installation-planning and design phase through to commissioning.
 Boating & dogging / HIAB/crane for pontoon installation.
 Operation of Komatsu wb97s-5 backhoe loader for fixed pipe to achieve drag.
 Butt welding/ installation of valves & mechanical bolt-ups 200mm - 280mm (Dixon HF 350)
 Draw-down & performance testing bores for yield losses and system curve.
 Daily bore field checks/weekly piezometer dips of production & perimeter bores.
 Backhoe (trenching, stringing of pipe, loading welding machines)
 Installation of facilities-low point drains- Apex ARV valves
 Loading of Wellmaster & drop cable for IR UON trailer mounted systems.
 Installation of Truflo 80-180 Vac prime REL & Godwin cd150m sump pump maintenance at ore bodies
23 & 25.
 Wet season preparation & installation of pumps 2000 Pneumatic diaphragm slurry pumps.
 Installation of 250kl water bladder for dust suppression standpipe orebody 25.
 BHP Billiton WAIO towing/sparing of pipe procedures adhered to on all tasks.
May 2014 - October 2014
Polywelder / Groundwater Technician
FMG Exploration
 Production bore installation/retrievals for drilling programs
 Piezometer analysis dipping.
 Bobcat T35100L telehandler operation
 Bobcat s220 operation preparation for donger blocks
 Bobcat 337 excavator operation trenching services for donger block installations
 Butt weld 50mm to 110mm polypipe.
 Installation of high point ARV valves & isolation valves.
 40mm - 63mm pipe retrieval operation of Boreboss Service Boss SB200S & Poly Boss PB75 pipe
winders and trailers.
 Installation rebuilds and repair of Lowara skid mounted booster pump units.
 Effer 8 tonne CV crane truck operation.
 Servicing & maintenance of RO filtration units and supply tanks(chemical dosing)
 Kevrek 1000 VLC crane installation of 10-15 Kva Gensets & 5-9kl poly water tanks.
 Remote driving procedures adhered to on all journeys as per FMG exploration guidelines.
March 2013 – April 2014
Maintainer / Water Technician
BHP Billiton / NPI Water - Newman
 Butt welding spools 110mm - 200mm & extrusion polywelding of dosing barbs/domes/saddles
 Potable skid pump modifications/manifold installations Magflow and valve bolt ups.
 Use of portable ultrasonic flow meter for calibrations across the water nexus Newman.
 Day to day chlorination Ph & TDS testing of Newman township potable supply, Jimblebar hub,
Warrawandu village water supply.

3. Hobbies
Surfing
Traveling
Rottweilers
Small engines
Fishing/hunting
 Operation of (CAT 428e) backhoe trenching, yard construction and truck loading.
 Operation of Manitou Maniscopic telehandler unloading trucks of 600kg chlorine gas vessels.
 Daily bore field inspection & data entry into sap.
 Draw-down testing of Newman whaleback bores
 HIAB 10m tonne crane truck operation/Dogman at Newman Water Treatment Plant
 Lowara pump maintenance of the temporary water treatment plant
 Installation of Grundfos pumps and new manifold systems at WTP
 Pm inspection & mechanical maintenance of corner b transfer pumping station & TPS Ore Body 25
Eastern Ridge Newman.
October 2012 - March 2013
Dewatering Poly Welder
Regis Resources
 Submersible bore pump retrieval / installation for scheduled drill & blast
 Repair of geomembrane liners
 110-355 polypipe stringing (Dixon 110, Dixon HF225, Dixon hf350)
 Fabrication of tails dam 355mm - 160mm t-pieces spigots scalloped & extruded (Leister Weldplast s1.)
 Wear max application for t- piece internals at junctions for abrasive tails solution.
 Mill shutdown duties polywelding of new shoots wear maxing, lifting mantles & cone crushers feed
shoots and structural frameworks (Franna mac20 operator) forklift and it operation (WA 250 PT)
May 2012 - October 2012
Dewatering Technician
Rio Tinto - Marandoo MMP2
 Polypipe stringing 110 - 280mm(Dixon EHF 350, HF 225)
 Retrieval / installation of in pit production bores for scheduled drill and blast.
 Installation of sp-160 - sp-215 customised Grundfos bore pumps, revised tooling fabricated to assist
installations for these specialised pumps.
 Installation and retrieval of UON Trailerized headworks/switchboards & generators.
 Manifold fabrication P&ID schematics logged with RTIO SAP/BMS & according to PIPA standards.
 Lycopodium assessed and permitted to commission 33 skid mounted bore installations, MMP2
perimeter production bore field.
 Quality assurance inspection & sampling of headworks, remedial repairs of air relief issues, advised
lycopodium commissioning dept. to absence of air accumulators upstream and downstream of
inlet/outlet spools under ARV valves as recommended by Australian water authority standards.
 Full system pressure testing of main trunk line.
 Quality assurance of HDPE fittings stub & flange torque settings, product identification, fastening
systems, & welds to PIPA specifications downstream of headwork skid discharge for MMP2 RTIO
dewatering department handover of assets.
July 2010 - May 2012
Dewatering Technician
Birla Nifty Copper Operations
 Operation of (Terex Fermec 820 backhoe) (cat 420d backhoe) (cat 428 backhoe) trenching, loading of
welding machines pipe stringing,
 Elecrofusion welding 63mm - 250mm pipelines tees / elbows.
 Operation of (JCB 541-70) telehandler loading/unloading stores from trucks and loading pipe into
polywelding machines.
 Operation of (Terex Franna at-14) non slewing crane, pick and carry in open pit, loading welding
machines, placing pontoon pump platforms into pit lake, delivery of control panels bulk fuel bunds,
solar panels, telemetry and Gensets to bore fields.
 Cyclone season preparation of aerodrome drains & dams (Sykes XH150) sump pumps.
 Fines & tailings dam sump pump installations, wedge welding of geomembrane liners at fines dam,
configuration of manifolds & piping for a bank of four parallel Vac Prime Truflo 80-180 skid mount
pumps, 200mm - 250mm HDPE manifold fabrication & bolt up of isolation valves, check valves,
Magflows, expanders/ reducing spools & ARV points, flange blocks, concrete nib pedestals.
 Boating, Franna operation lifting/rigging and bolt up of inlet suction pipe sections for (Tru Flo 80-180
Vac Prime) pump skids.

4.  Complete site wide delete of all mechanical flowmeters and systematic replacement to Magflow
(Endress + Hauser Magflows) units from 150mm - 350mm for automation of citect telemetric
monitoring project for dmp compliance to attain accuracy for site annual water balance, spool
fabrication 160mm - 355mm, tie in / cut in (Dixon HF 350, HF 225)
 Extrusion repair of ailing 9kl poly water tanks at staging/booster pump station western ramp.
 Cabinet making & shop-fitting experience, proficient with hand tools & power tools such as torque
wrenches, grinders, orbital sanders, belt sanders, hand router, pneumatic wrenches, hand rollers and
cutting knives for extrusion welding, scrapers and carbide tools for electrofusion couplings, hole saws
for saddle installations.
 Installation of level sensors in staging tanks, repair & maintenance of four parallel southern cross
150mm discharge wet end staging booster pumps (manifold fabrication bolt up) .
 Pm checks monitoring thermal inspections of wet ends at raw water dam, ILS/PLS dams, Warman
pump gland packing & v-belt change outs.
 Urgent break-in repairs to underground rising mains & mechanical vane flowmeter change outs for
the Endress + Hauser Magflow replacement meters at underground stock piles 21 and 22 in western
pit and paste fill plant east.
 Camp & Mine site fire system repair and weekly testing of jockey pumps.
 Ro filtration plant (ailing plant) daily log and data entry, repairs to dosage equipment and fittings,
hypochlorite & anti-scale addition / chemical handling, pm inspections, membrane & polishing filter
replacements & daily manually engaged backwashing.
 Bore field pipe line weed control.
 Successful recovery of capsized 4m x 6m pontoon in pit lake after deluge and complete erosion of
western ramp during cyclone season (use of backhoe & Trenk contractors for surface mobile plant,
grapples/rigging /dogging & boat for Terex 80 tonne slewing all terrain crane to extract and replace
pontoons, prompt planning and safe execution to achieve ramp repair and compaction of slewing
crane limited radius area, limited to 5 personnel for project during a FIFO shift change, task completed
in under three 12 hour shifts.
January 2008 - March 2010
Maintenance All-Rounder / Dewatering Operator
Crescent Gold Limited
 All mechanical maintenance of the ball mill and weekly powering up of ball mill for inching procedure.
 Shut down under care and maintenance for 1 year initially before new tender & ramp up 2009,
operation of skid steer loader with forks, 4 way bucket & auger implements to install new
signage/delineation with Aquacrete (Cat226b)
 Use of drills sockets and clamps to affix road signage
 Empty ball mill and store mill balls for transport offsite, remove auto grease units from mill, operation
of Komatsu (WA 250 IT) and Bobcat.
 Pick and carry (mac 25 Franna) retrieval of BP 5KL cradle mount steel diesel tanks from
decommissioned open pits at Barnicoat mine.
 Operation of telehandler (CAT LD 24) integrated tool carrier (WA 250 ) Wheel Loaders (CAT 980)
loading / unloading semi-trucks & road trains of stores supplies ( one tonne carbon & lime Bulka bags)
 Tree felling of prohibited introduced pines in decommissioned pits tailings dam & rehab areas.
 Clean up of all polypipe on site including tailings dam.
 Butt welding and bolt up of 500m sections 250mm HDPE discharge lines for draw down at west
Laverton prospective open pit cut backs, piggy back dewatering (pit to pit dewatering) borrow pit
construction 110mm polypipe stringing, stand pipe installations, telemetric control starter panel
installation at pit surface, and repeater panel installation on pit floor.
 Pick and carry operation (mac 25 Franna) Hino 8 tonne flatbed truck transportation of stalker auto
prime pumps across West Laverton dewatering projects.
 Backhoe (JCB 3CX) excavator (CAT 320e) operation building pump pads and ramp access for stalker
pumps.
 Towing and rigging of polypipe for bolt up to discharge & fabrication & installation of suction inlet
pontoons.
 110mm -250mm polypipe stringing for re-injection to deplenished bore field wells (Dixon HF 350)
(Omisa SP 315 EV2)
 Fabrication of mild steel reducer and expander flanged spools, TIG & MIG.
 Leveling of fuel pod pads with (Komatsu WA 250) (cat 226b)
 Rigging / Dogging for Hercules Crane Hire during unloading of fuel pods.
 Bolt up pipe fitting & commissioning of 44ft Bunded fuel pods at 'Mary Mac' & 'IDA H' open pits.

5. Referees
Please seek permission
before contacting
Andrew Leggett
Mobile Equipment Maintenance
BHP Billiton WAIO
Eastern Ridge Mine site
0400 368 944
Andrew Brennan
Supervisor Water and Source
BHP Billiton NPI Utilities WAIO
0403 934 300
Daryn Borrie
Dewatering Supervisor / OH&S Officer
Crescent Gold Ltd
0419 307 263
Peter Calcott
Dewatering/ Infrastructure Supervisor BNCO
Birla Nifty Copper Operations
0409 403 326
Victor Cotic
Dewatering/Infrastructure Leading hand BNCO
0439 988 498
Dr Scott Keeling
Project development manager
Crescent Gold Ltd
0415 335 011