Additional expert Mr John Hilson BSc MICE MCIWEM CEng, Chartered Civil Engineer Richard Allitt Associates Ltd, Suite A4, Chadwick House, Birchwood Park, WARRINGTON, WA3 6AE Email: [email protected] Flooding • Hydrology • Hydraulic modelling • Surface water management • Integrated urban drainage • Drainage & sewerage • Sewerage management • Waste water • Land drainage • Reservoir inundation modelling

Expert witness reports on garden and landscape projects relating to standards, quality of construction, workmanship and contractual issues relating to Terms and Conditions and CDM Regulations • Accredited Evaluative Mediator for Civil and Commercial Disputes • Specialising in dispute issues in the garden and landscape industry, including Civil Procedure Rules Part 35 reports, statements of opinion, preliminary reports and distance reports

Experienced in sewerage and land drainage matters to include: • drainage investigations • drainage design • preparation of drainage contracts • supervision and management of drainage contracts • management of consulting engineers • hydraulic modelling and masterplanning of sewerage networks. Experienced in allegations of professional negligence against consulting engineers Experienced in allegations of bad workmanship against contractors

Land drainage • Flood risk • Soil surveys • Soil husbandry • Land restoration • Water holdings structures/constructed wetlands • Natural flood management • Diffuse Water Pollution from Agriculture (DWPA) • Particular experience of soils and drainage along cross-country construction projects, such as pipeline installations • Providing consultancy and expert witness for soils and drainage disputes related to land development, land severance and breaches in land drainage law in England and Wales