DTec Consulting Ltd., specialise in coastal process investigations and data collection, coastal hazard assessments, resource consent preparation, assessment of effects of coastal activities, and coastal planning.

Coastal Hazard Assessment:
Coastal erosion assessment and mapping, inundation risk assessment, Tsunami risk assessment, assessment of the effects of climate changes on coastal hazards.
Coastal Protection:
Beach renourishment design, dune contouring design, assessment of effects of coastal protection structures such as sea wall and revetments.
Coastal Processes & Modelling:
Wave generation, wave run-up and erosion processes, sediment budgets, dune development models and coastal responses to climate change.
River Mouth Assessment:
Assessment of mouth stability and critical flow limits for mouth closure.
Coastal Planning & Management:
Regional Coastal Plan preparation and submissions, coastal land use strategy planning, District Plan submissions on coastal developments, beach gravel extraction management planning, dune conservation management strategies,
Coastal Monitoring:
Design, implementation and interpretation of coastal monitoring programmes for change in beach morphology and stability.
Consent Preparation and Auditing:
Full consent and AEE preparation for activities on the coast, specialist coastal impact assessment for other activities, consultation, expert witness, technical audit of coastal consent son behalf of Regional Councils.
Environmental Education:
University lecturer on resource management and coastal hazards, trained secondary teacher, experience in public consultation, presentation to teachers and pupils on environmental education and coastal management, preparation for coastal field trips for school and conference groups.
Project Management:
Management of disciplinary teams involved in technical and planning projects on coastal issues.
Expert Witness:
Appearances in front of Environment Court, planning tribunals and consent hearings


Derek Todd and/or DTec Consulting have authored or co-author over 60 client, Regional Council, and Catchment Board publications and technical reports on coastal processes and management.