People

JULIET DUFFY
MANAGING DIRECTOR

“A multi-disciplinary scientific team with a broad project understanding and solutions for most project challenges”

Fifteen years ago, Juliet founded Regional EnviroScience, now known as EnviroScience Solutions Pty Ltd.

She is a leading advocate for women in STEM and has more than 30 years’ experience managing occupational health and environmental projects across a range of industries in NSW. Juliet has been recognised for her many achievements by the industry and beyond. In 2017 and 2018, she was a Finalist in the Australian Financial Review Fast 100. In 2017, she was a finalist and in 2018 was named the Regional Business Woman of the Year. Juliet holds a Masters in Sustainable Management from the University of Sydney.

In 2021, EnviroScience was the Asia Pacific WINNER for the annual BGIS innovation awards, and THIRD place globally for a project in partnership with BGIS and local construction companies! Go here for more details.

KEN ARCHER
HEAD LABORATORY SCIENTIST

Ken is a Medical Scientist with more than 40 years’ experience. He managed the Orana Pathology Service at Dubbo Hospital, before bringing a wealth of knowledge to EnviroScience. Ken plays a critical role in ensuring the appropriate standards of quality systems and controls in both operations and the laboratory, are consistently maintained. His extensive knowledge and insights ensure he is the first stop for team members keen to collaborate on complex problems and bespoke solutions for clients.

JEFF SARGENT
LEAD SCIENTIFIC QUALITY MANAGER

Jeff is a Medical Scientist who previously oversaw two key departments – Biochemistry and Microbiology – at the Orana Pathology Service at Dubbo Hospital. His extensive background in both disciplines, positions Jeff as a key member of the EnviroScience team, particularly in mould, bacterial and chemical assessments as well as water testing. Jeff is also the Lead Scientific Quality Manager for the organisation.

SIMONE LOBO

Simone is a Medical and Quality Control Scientist with extensive experience in microbiology, biochemistry and cell culture. Before joining the EnviroScience team, Simone worked at Thermo Fisher Scientific in a range of multi-disciplinary roles. This background coupled with her success in a quality-controlled environment at EnviroScience, positions Simone as an influential member of EnviroScience team. 

JOHN BARTHOLOMEW
BAppSc CertOHSProf.SIA MAIOH. LAA 001156

John is an Occupational Hygienist (MAIOH) and is a Certified OHS Professional with the Australian Institute of Health and Safety. John has worked in multi-disciplinary environments including consulting and operational positions across a wide range of sectors including in government, mining, construction and agriculture in various roles related to quality systems and controls in operations and the laboratory.

GEMMA MURPHY
BSc (Geosciences) LAA 00122

Gemma is an Occupational Health and Environmental Consultant with extensive experience in the Geotechnical and Environmental Fields. Gemma facilitates the project management of large-scale projects and oversees tendering and quotation responsibilities for EnviroScience. Gemma has a specific interest in Naturally Occurring Asbestos Management and Contaminated Sites Remediation. She is also a Licensed Asbestos Assessor.  

MARK CHALLONER
BSc Hons CEnvP

Mark is Contaminated Site Practitioner with 25 years of experience as an environmental consultant advising multi-national and national companies on contaminated land issues. He is a Certified Environmental Practitioner: Site Contamination Specialist (CEnvP: SCS SC40106) accredited by Environmental Institute of Australia and New Zealand (EIANZ) and an EIANZ Site Contamination Accreditation Scheme Registrar.

DAVID ABBOTT
BAppSc (Land Science) AssDipAppSc (Biology) LAA 001517

David has extensive experience in public policy, project management and government relations, particularly in the resources sector. He a strong background in stakeholder engagement, Indigenous community relations and partnership building.

ANDRÉS ORTEGA
BGeoSc. LAA 001347

Andrés is a Licensed Asbestos Assessor and Work Health and Safety consultant with extensive experience in hazardous materials, indoor air quality, environmental monitoring, occupational hygiene, and contaminated land assessments. As an environmental scientist, he has developed strong skills in field sampling and the laboratory analysis of soil, water and air quality.

SAM RAMSEY
BEnv Sc (Physical Systems)

Sam is an Occupational Health and Environmental Consultant with lengthy experience in Contaminated Land – Site Assessment and Remediation projects. He has worked in Waste Classification and Resource Recovery Orders as well as performing a range of on-site assessments and supervisory roles. Sam manages the EnviroScience Newcastle office.