Dr Annalisa Contos

PhD, BE (Chem), WQMS auditor


Dr Annalisa Contos is a highly experienced certified auditor and award-winning risk manager in the water, environment and policy fields with over 20 years’ experience in the water sector. She has a chemical engineering degree with a doctorate in aquatic chemistry, both from Sydney University. She is a chartered professional engineer in the Chemical and Environmental Colleges and is an Honorary Associate at the University of Sydney. Read more…

Steven Contos

BE (Chem)

Chief engineer

Steven is a chemical engineer with almost 20 years’ experience in the provision of information and technical solutions to the water and health industries. Steven specialises in providing technical services including technical review and summary reporting to government agencies, water utilities and private companies. Steven is highly regard for his ability to bring strong research and analytical skills to the practical design and review of drinking and recycled water schemes. Read more…

Natalie Crawford

BE (Env), WQMS Auditor

Manager business operations

Natalie has almost 20 years’ experience in the water industry, specialising in water resource engineering. Natalie has a wide range of experience working on water projects including water treatment plants, flood mitigation works and coastal engineering schemes. In her role at Atom Consulting, Natalie has been involved in drinking and recycled water quality risk assessments and management systems, operating procedures and incident and emergency response plans. Read more…

David Bartley

BE (Chem)

Operations support manager

David Bartley is a technical expert with over 15 years’ experience in managing operations in water, wastewater and recycled water treatment operations. David has experience in process optimisation, modelling biological wastewater treatment processes,operator training and support and the audit and validation of water, wastewater and recycled water plants. Read more…


Lucy Parsons

BE (Chem and Biomolecular)

Chemical engineer

Lucy provides engineering support to both operations and management. She is experienced in the development of interactive spreadsheets, data analysis, operational procedures, management system documentation, training and workshop facilitation and recording. Read more…