Catchment Modelling
Modelling of hydrological catchments for the purposes of defining average and low-flow conditions, as well as the impact of land use change.
Environmental Water Requirements
Surface Water Impact Assessments
Hydraulic Infrastructure
Flooding
Catchment Modelling
Stormwater Management
Clarity in
Water Solutions
Since establishing our consultancy in 2012, we have built a reputation for transforming complex water challenges into clear, sustainable solutions. Our comprehensive hydrological consulting services bridge innovation with practical implementation across diverse sectors and environments.
We welcome every opportunity to collaborate with clients in developing effective, tailored solutions.
Multi-Sector Experience
Agriculture, mining, oil/gas, renewables, transport and urban management
Regional Expertise
Extensive projects throughout South Africa and abroad
Collaborative Approach
Including professional partnerships and independent delivery
Our Clients
Our Specialized Services
Flood Hydrology
Catchment delineation, flood peak and hydrograph estimates, using a variety of techniques as input into Hydraulic (flood-line) Modelling.
Hydraulic (Flood) Modelling
Development and review of 1D, 2D and 1D/2D hydraulic models for fluvial, tidal and surface water flooding investigations, including flood-line delineation.
Impact Assessments
Reporting on surface water impacts, constraints and opportunities as part of Environmental Impact Assessments (EIAs).
Reserve Determination’
Calculation of Environmental Water Requirements (EWRs) to assess potential utilisation of streamflow.
Stormwater Management
Storm water management plans designed as per requirements of GN 704 and IFC guidance (where applicable).
Water Balances
Development and evaluation of dynamic and static water balances.
Water Quality Monitoring
Water quality monitoring as per authorised or investigative monitoring programs including sampling, analysis and interpretation.
Water-Sensitive Urban Design
Conceptual design and layout of Sustainable Drainage Systems (SuDS) to enable a low-impact development, mimicking the natural hydrological regime.
Project Location Overview
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Map Showcase
Explore examples of our advanced spatial analysis and data visualization projects. Click to view full resolution images and interactive content.
Pluvial (Rain-on-Mesh) Flood Modelling
2D Integrated simulation of the rainfall-runoff process (hydrology and hydraulics within one model)
Fluvial Flood Modelling
Coupled modelling in which flood hydrology (design hydrographs) is first estimated, then applied to a 2D hydraulic model
Stormwater Modelling
1D modelling of stormwater systems as typically applied to mining, renewable, and urban scenarios
Our Posts
Not All Flood-Lines Are Equal (Part 2)
In the previous post (Part 1), the discussion centered around flood hydrology, which is one of two primary components in…
Flooding
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Not All Flood-Lines Are Equal (Part 1)
In South Africa, we term the boundary or maximum extent of simulated (or modelled) flooding, flood-lines, which is a common output…
Flooding
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Section 21 (c) and (i) water uses – licencing and general authorisations
There is often the need to consider the influence of a watercourse (e.g. a river) when starting a new development…
Water Use Licence
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Meet Our Team
Mark
Director
MSc (Hydrology), CSci, CEnv, C.WEM, Pr.Sci.Nat
Mark has over 18 years of experience working as a hydrologist and founded Hydrologic Consulting in 2012.
Mckennah
Environmental Specialist
Bachelor of Arts and Social Sciences (Honours) in Geography and Environmental Studies
Mckennah leads advanced spatial analysis work, combining strong technical skills with a passion for clear, intuitive mapping.
Beth
Environmental Specialist
Bachelor of Arts and Social Sciences (Honours) in Geography and Environmental Studies
Beth specialises in GIS workflows, data quality and visual storytelling to support robust hydrological assessments.
Sheldon
Geospatial Specialist
Bachelor of Science in Geomatics
Sheldon focuses on water-related geospatial analysis, ensuring projects are grounded in precise, high-quality spatial data.
Contact Us
"Water is the driving force of all nature." - Leonardo da Vinci