Our experts

Our expert Hydro-Logic Service consultants have vast experience in the water industry and unrivalled specialist expertise of water management issues.

Our expert consultants have vast experience in the water industry and unrivalled specialist expertise of water management issues.

Colin Fenn (BA, PhD, C Sci, C.WEM, FCIWEM)

Expertise: Water Resources Management, Hydrology, Flood Management

Colin has been with Hydro-Logic Services since 2006. Colin has a vast range of past experience and provides specialist expert input to the team. 


  • Chaired CIWEM's Water Resources Expert Panel for 12 years
  • Inaugural reporter on the water sector and on the flood and coastal management sector for the Institution of Civil Engineers' State of the Nation report, from 1999-2004
  • Member of the Institution of Civil Engineers review panel, 2012-2013
  • On the British Hydrological Society National Committee 2005-2012 
  • Former Managing Director at Atkins Water and HR Wallingford
  • Over 40 published papers on water resources and flood management
  • Honorary Research Fellow and Lecturer at Oxford Brookes University


Eliot Simons (BA, MSc, MCIWEM, C.WEM, MAPM)

Eliot joined Hydro-Logic Services in 2017 as Head of Consultancy Operations. He has a large amount of experience in Project and Program Management, Strategic Planning, Water Resources Planning and Hydrology, both in the UK and internationally.


  • Expert advice and consultancy services to:
    • UK water companies
    • The environment agency
    • Private clients including Planners, Architects, Aggregate Companies, Consultants and Developers
  • Member of the Chartered Institute of Water and Environmental Management
  • Member of the Association for Project Management

Mark Smith (MSc MA (Cantab) MIAM MCIWEM C.WEM CEnv)

Expertise: Water Resources

Mark joined Hydro-Logic Services in 2018 as Head of Water Resources. Mark specialises in water resources planning and management, and has significant associated experience developing water business plans and applying asset management practices.


  • Water resources modelling and forecasting
  • Aquator modelling
  • Member of the Chartered Institute of Water and Environmental Management
  • Member of the Institute of Asset Management
  • Member and Deputy Chair of the CIWEM Water Resources Expert Panel

Simon Clarke

Expertise: Water Quality and Catchment Management

Simon Joined Hydro-Logic Services in 2018 as the Head of Water Quality and Catchment Management. He has twenty-nine years’ experience in environmental consulting having directed, managed and undertaken numerous high-profile research and consultancy projects for clients both in the UK and overseas.


  • Water policy and planning
  • Impact assessments on receiving water quality and ecology
  • Design and implementation of water quality and ecological monitoring programmes
  • Implementation of the EU Water Framework Directive
  • Catchment studies relating to discharges, abstractions, drought conditions, transfers and catchment-based approaches

Paul Webster (BSc, MSc, PhD, DIC, MCIWEM, C.WEM)

Expertise: Flood Management, Hydrology

Paul has been a senior Hydro-Logic Services consultant 2000, following nine years spent lecturing in the School of Civil Engineering at the University of Birmingham. Paul is our lead hydrologist, providing invaluable input on water resources, flooding, master planning and project management.


  • International experience with the Namibian Government; reservoir planning in Botswana; river basin master planning in China and catchment based flood studies in Hong Kong 
  • Contributed to over 20 published papers in hydrology and water resources
  • Member of British Hydrological Society Committee, 1992-2000
  • Member of CIWEM Rivers and Coastal Group Committee, 2004-2008
  • Chaired steering group on revisions and developments of the Flood Estimation Handbook 2001-2007

Rob Burton (BSc, C.WEM, MCIWEM)

Expertise: Hydrometry

Rob began his career with Hydro-Logic Services and was appointed Head of Hydrometry in 2011, managing the delivery of national hydrometric field services across the UK.


  • Lead specialist on MCERTs and flow measurement audit/compliance
  • Significant role in developing consultancy services in Stirling
  • Active member of the British Hydrological Society in the Pennines

Alan Corner (BEng, Ceng, MICE)

Expertise: Water Engineering

Alan has been with Hydro International since 2011 and became Head of Water Engineering in 2016, providing a technical lead in sewage treatment, drainage and flood risk design matters.


  • Global SuDS Knowledge Leader at Halcrow 2004-2010
  • Member British Water SuDS/Sustainable Water Focus Group since 2005
  • International experience in the United Arab Emirates, Kuwait, Qatar and Thailand covering flood risk, sewage treatment works design, drainage networks construction supervision plus port and rail depot drainage design
  • Design lead on Water Pollution Management and Containment - offering HAZOP assessment services related to the control of pollution and fire water runoff for industrial clients
  • Expert witness capability for drainage and flood related issues      
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