Terra Solutions is a North Queensland-based environmental consultancy providing innovative and cost-effective solutions across the private and public sectors.

Anton Fitzgerald

Director / Principal Scientist

  • Anton is an environmental scientist with more than 15 years' experience providing environmental and scientific advice across the mining, agribusiness, renewable energy, and utilities sectors.

    He has extensive expertise in environmental approvals, ecological assessments, environmental monitoring, contaminated land, hydrogeology, and surface water investigations. Anton is highly experienced in interpreting State and Commonwealth environmental legislation, designing targeted field programs, and managing environmental investigations to support project approvals and compliance.

    He is skilled in scientific data analysis, technical reporting, project management, and delivering practical, defensible advice that helps clients achieve project objectives while meeting regulatory requirements.

Laurence Liessmann

Director / Principal Scientist

  • Laurence is an environmental scientist with over 20 years' consultancy experience in Queensland.

    He has extensive expertise in project management, client and regulator engagement, environmental legislation, environmental assessments, statutory approvals, monitoring programs, and technical reporting. Laurence has led multidisciplinary field and office-based teams across large-scale projects, including environmental impact assessments, environmental and offset management plans, EPBC Act referrals, and compliance monitoring programs.

    His technical expertise includes aquatic and terrestrial ecology, water quality, contaminated land, and acid sulfate soils, and he holds accreditation in the Australian River Assessment System (AUSRIVAS).

Dr Christa Placzek

Principal Hydrogeologist / Geochemist

  • Christa is a highly qualified geochemist and hydrogeologist with over 20 years' experience across government, research, education, and consulting.

    She specializes in geochemical analyses, hydrogeological conceptualisation, contaminant investigations, and integrated water management, and hydrogeological modelling. Christa has extensive experience in the sampling and interpretation of chemical and isotopic data from waters, soils, rocks, and biological materials, together with analytical hydrogeological modelling and hydroclimatological forecasts. She is recognised for delivering high quality technical reports and communicating complex scientific information to a broad range of stakeholders.

    Between 2011 and 2019, Christa lectured at James Cook University in Earth and Environmental Geochemistry, Mine Site Rehabilitation, Geomorphology, and Hydrogeology.

Dr Stephen Lee

Principal Hydrogeologist  

  • Stephen is a hydrogeologist with over 10 years of experience across the Australian resource, water, and environmental sectors.

    His expertise includes hydrogeological assessments, groundwater monitoring, hydrochemistry and environmental tracers, groundwater-surface water interactions, and recharge assessments. Stephen recently completed a PhD at Charles Darwin University investigating groundwater recharge across Australia, resulting in the development of a national groundwater recharge database and continental-scale recharge map.

    Stephen is particularly interested in understanding how groundwater and ecosystems interact, and applying this knowledge to improve water resource management and environmental outcomes.

Lochlan Jones

Senior Ecologist

  • Lochlan is an ecologist with over seven years' experience delivering ecological and environmental projects across Queensland for clients in the extractive industries, defence, and government sectors.

    His expertise includes threatened fauna surveys, macroinvertebrate, breeding place and habitat assessments, and advanced GIS analysis and ecological mapping to support environmental assessments and project planning. He is experienced in a range of field survey techniques, including camera trapping, spotlighting, and acoustic monitoring, together with environmental data management and technical reporting.

    Lochlan has prepared environmental impact assessments, management plans, and development applications, consistently delivering practical, high-quality outcomes while maintaining regulatory compliance.

Jai Kaartinen-Price

Senior Hydrogeologist

  • Jai is a hydrogeologist with seven years' experience in groundwater and environmental management across the consulting, research, aquaculture, and agriculture sectors.

    He has extensive experience delivering hydrogeological projects for mining, industrial, energy, and land development clients throughout North Queensland.

    Jai specialises in groundwater monitoring, drilling supervision, bore and aquifer testing, hydrogeological assessments, conceptual model development, groundwater modelling, and technical reporting. He maintains a strong focus on delivering practical, technically robust solutions.

Dylan Case

Ecologist

  • Dylan is an ecologist with five years of environmental consulting experience across Queensland, working primarily in the mining, renewables, and environmental offsets sectors.

    He has extensive experience designing, coordinating and implementing flora and fauna surveys, including targeted surveys for threatened species, using a range of trapping, monitoring, and active survey techniques. Dylan is also experienced in vegetation community mapping using the BioCondition methodology and other vegetation assessments. Dylan is a practised drone pilot, having undertaken over 300 flights during his time at Terra Solutions. He also acts as Terra’s Chief Remote Pilot, ensuring efficient and compliant operation of the UAV fleet and timely delivery of high-quality aerial imagery to support environmental projects.

    Dylan is also experienced in coordinating field programs, managing project logistics, and supporting the delivery of ecological assessments and reporting.

Keeleigh Parison

Aquatic Ecologist

  • Keeleigh is an aquatic ecologist with four years' environmental consulting experience across the mining, renewables, government, and energy and resources sectors.

    Her expertise includes field ecology, environmental monitoring, GIS, environmental data analysis and statistics using R Studio, client liaison, and project coordination. She has coordinated field programs and ecological assessments, supported fauna surveys and GIS mapping, and prepared environmental impact assessments, environmental management plans, and environmental monitoring reports, consistently delivering high-quality outcomes.

    Keeleigh is accredited in the Australian River Assessment System (AUSRIVAS).

Alex Leurquin

Environmental Scientist

  • Alex is an environmental scientist with over ten years' experience.

    His expertise includes environmental monitoring (surface water, groundwater, and sediment), aquatic ecology (including REMPs), fauna spotter catching, ecological assessments, environmental site inspections, data management, and environmental reporting.

Lauren Heilbronn

Ecologist

  • Lauren is an ecologist with over five years' experience in ecology and environmental consulting.

    Her expertise includes terrestrial and freshwater survey methodologies, biodiversity assessments, flora and fauna identification, technical reporting and environmental data collection. Lauren has undertaken and contributed to a range of ecological investigations and environmental monitoring programs and is experienced in managing ecological datasets, consistently delivering high-quality technical outcomes.

    Lauren is accredited in the Australian River Assessment System (AUSRIVAS).

Samuel Barton

Ecologist

  • Sam is an ecologist with three years' environmental consulting experience delivering projects across the energy and resources, agribusiness, and mining sectors.

    His expertise includes fauna surveys, botanical assessments, fauna spotter catching, field navigation, and a range of field-based ecological investigations. Sam has a strong working knowledge of flora and fauna identification and is experienced in collecting high-quality ecological data to support environmental assessments, approvals, and management projects.

    He is also proficient in GIS mapping and spatial data analysis, contributing to the delivery of high-quality technical outcomes and environmental reporting.

Nathaniel Renteria

Graduate Ecologist

  • Nathaniel is a graduate ecologist with field experience supporting ecological surveys and environmental monitoring projects.

    His expertise includes species identification, environmental data collection, GIS, and technical reporting. He has contributed to a range of field-based ecological investigations and has a strong interest in ecological data analysis and statistics, with experience using R Studio.

    Nathaniel is committed to delivering high-quality scientific outcomes that support environmental approvals, compliance, and management projects.

Dominic Holzheimer

Graduate Environmental Scientist

  • Dom is a graduate ecologist with field experience supporting ecological surveys and environmental monitoring programs, including species identification, fauna spotter catching and environmental data collection.

    He has contributed to a range of field-based ecological investigations, vegetation assessments, environmental monitoring projects, and fauna management activities.

    He is experienced working safely in remote environments and is committed to delivering high-quality ecological outcomes for environmental approvals, compliance, and management projects.

Philip Haig

Graduate Ecologist

  • Philip is a graduate ecologist with field experience across the renewables, energy, and resources sectors.

    His expertise includes field ecology, threatened fauna surveys, macroinvertebrate and breeding place and habitat assessments, and environmental monitoring. Philip has contributed to a range of ecological investigations and environmental monitoring programs and has developed a strong knowledge of Australian fauna.

    He is committed to delivering high-quality ecological outcomes that support environmental approvals, compliance, and management projects.

Raul Hernandez Font

Graduate Hydrogeologist

  • Raul is a graduate geologist with field experience supporting ecological surveys and environmental monitoring projects.

    His expertise includes geological mapping, rock and mineral identification, structural interpretation, GIS and remote sensing, geochemical analysis, and technical reporting.

    Raul has contributed to geological mapping projects, soil carbon sequestration field trials, and carbon geochemistry investigations, and is experienced working safely in remote field environments.

Emma Liessmann

Business Support

  • Emma is a Business Support Officer who provides administrative, operational, and project support across the business.

    Her expertise includes document preparation, proposal coordination, project administration, quality assurance and document control, ensuring the efficient delivery of environmental consulting projects.

    Emma works collaboratively with technical teams to support business operations, maintain project documentation, and deliver high-quality outcomes through strong organisational skills and attention to detail.