Our team

Juliet Duffy

Juliet Duffy

MSN Syd Uni

Director/Occupational Hygienist, LAA000102

The Director of Regional Enviroscience, Juliet holds a Master of Sustainable Management and has managed Asbestos, hazardous materials and environmental issues since 1988, when the first National Code of Practice for Asbestos was implemented. She has had extensive experience managing hazardous materials in schools, hospitals, refineries, chemical manufacturing plants and contaminated sites.

Kenneth Archer

Kenneth Archer

MAIMS, FACBS, MASM

Head Laboratory Scientist - NATA accredited

Ken is a medical scientist with 40+ years experience and was previously in charge of Orana Pathology Service at Dubbo Base Hospital and has brought his wealth of knowledge to EnviroScience ensuring the appropriate standards of quality systems and controls in operations and the laboratory.

Jeff Sargent

Jeff Sargent

BSC, App Sc, AACB, MASM

Senior Laboratory Scientific & Quality Manager

Jeff is a medical scientist previously working at the Orana Pathology where he was in charge of two departments, Biochemistry and Microbiology. These two disciplines bring a wealth of experience to Jeff’s role at Regional Enviroscience, especially in mould, bacterial assessments and water testing.

Wayne Sibley

Wayne Sibley

Dip Mech Eng

Senior Occupational Technician, LAA 000164

Wayne Sibley is a Senior Occupational Technician at the Dubbo Office. Wayne comes from a Mechanical Engineering background and holds a Diploma of Engineering Studies majoring in Mechanical engineering. Wayne is also a certified Licensed Asbestos Assessor.

John Bartholomew

John Bartholomew

BAppSci. CertOHSProf.SIA

Safety, Health & Environmental Consultant, LAA001156

John is the Safety Health and Environment Professional for Regional Enviroscience and is qualified with a Bachelor of Applied Science majoring in Occupational Health & Environment. Over the last 15 years John has work in multi-disciplinary work environments including consulting and operations in government, mining, construction and agriculture.

Gemma Murphy

Gemma Murphy

BSc (Geosciences)

Occupational Technician LAA001222

Gemma holds a BSc majoring in Geosciences at the University of Wollongong, is a Licensed Asbestos Assessor and completed the AIOH Basic Principles of Occupational Hygiene. Gemma’s background in the geotechnical and environmental fields has been augmented with with Asbestos management projects including naturally occurring asbestos, noise & environmental projects and project management.

John Lucas

John Lucas

Dip AppSc

Senior Occupational Technician, LAA001107

John Lucas is engaged as a Health and Environment Professional for Regional Enviroscience. John has a Bachelor of Applied Science and has been working in the occupational hygiene industry since the late 1980’s both in Sydney and Toronto and now he is based in the Wagga office. John has also had extensive experience in agricultural research working in university research areas.

Nathan Aust

Nathan Aust

BSc (Env. Hlth), MAppSc (Tox.), RACTRA

Senior Health Risk Assessor & Toxicologist, LAA A121013

In his 18+ years experience, Nathan has worked in both private and public sectors, acquiring an in-depth knowledge of the identification, assessment and management of chemical, infectious and physical hazards and their impact on humans. Nathan is a registered professional in toxicology and risk assessment with the Australasian College of Toxicology and Risk Assessment (ACTRA).

Barry Alston

Barry Alston


Senior Occupational Technician, LAA001194

Barry Alston is the senior field occupation technician and manager of the Tamworth branch. Barry has extensive management experience. Barry obtained a Licenced Asbestos Assessor qualification and trained through Greencap on Asbestos identification and handling. Barry has training in Asbestos identification and completed the British Occupational Hygiene course.

Chantelle Berkin

Chantelle Berkin

BSc (hons) Dip Env Mgt

Occupational Technician LAA120736

Chantelle holds a Bachelor of Science with Honours in hydrology and water resource and is a Licenced Asbestos Assessor with several year’s experience in occupational hygiene and clandestine laboratory remediation for Queensland Dept of Housing & Public Works. Chantelle also holds a Diploma of Environmental Management, obtained while working within the construction industry.

Michael Williamson

Michael Williamson

BGeoSc

University Graduate

Recently completing his degree, Michael is part of the Enviroscience Graduate Program and brings to the workplace over seven years of practical farming experience, soil science and GIS mapping skills in addition to a range of administrative and project management capabilities. Michael will be performing a range of on-site technical duties, Asbestos registers, reporting and remediation supervision roles.

Hamish White

Hamish White

Accounts Administration

Hamish has been working with Regional EnviroScience since he graduated from school and completed his HSC in 2015. He is currently undertaking a course in Certificate III Business Administration . Hamish assists with day to day tasks and operations involved in the office and laboratory.

Conner Coman-Sargent

Conner Coman-Sargent

Administration and Technical Assistant

Connor works in administration and supports senior staff with the day to day operation in the office and laboratory. He hold a Diploma of Photo Imaging and is studying towards a Diploma in Graphic Design. Growing up in regional NSW, Connor has witnessed a period of growth and renewal in culture and the arts in Dubbo. He is an avid supporter of the creative arts and has contributed to significant local initiatives.