Extensive experience in hard landscaping, especially domestic sites • Specialising in paving, walling and construction, including decking and artificial grass • Also Japanese Knotweed and water issues, including site flooding and drainage

My professional qualification as a Chartered Building Surveyor overlaps with academic qualifications in environmental science and microbiology of infective and allergenic agents. I have over 40 years of professional experience, including specification and safe management of water and wastewater treatment systems, drainage, structural dampness in buildings, infectious waterborne diseases and occupational hygiene. I have provided expert services for over 300 civil and criminal cases. My clients have included...

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

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

All aspects of geotechnical engineering, ground investigation, earthworks, foundations, piling, geotextiles, unforeseen ground claims • Author of SHW series 500 Drainage and Earthwork 600 series plus associated DMRB Vol 4 CUBS Expert Witness - Cardiff University Business School 2023

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

Assessment and design of silage, slurry and manure handling, storage and application equipment and facilities • Compliance with agri-pollution legislation • Agricultural land management, including soil, manure and vegetation management practice

Construction safety • Occupational health & safety • Personal injury • Slips & trips • Manual handling • Accident investigations • Flooding damage • Geotechnical engineering • Foundations & earthworks • Embankments & cuttings • Soil & rock slope instability • Subsidence, settlement & heave • Treatment of mineworkings • Landfill engineering • Stabilisation works • Retaining walls • Ground improvement • Contamination • Drainage