Storm Water Management

Flooding

Surface Water Impact Assessment

Water Balances

Water Quality

Catchment Modelling

Integrated Mine Water Management

At Hydrologic Consulting, we offer our clients our expert hydrological services, which we have developed through our experience in various sectors including mining, agriculture, power, industrial, commercial, residential, transport and government. We have been involved in projects throughout South Africa and have added experience in other African countries. Of the projects we have been part of, many have been the product of collaboration with various professionals/consultancies, while others have been delivered independently.

Since the inception of the company in 2012, we have welcomed the opportunity to engage with clients in seeking out effective means by which to meet their project specific requirements.

Our aim at Hydrologic Consulting is to exceed our clients expectations by only delivering superior work, while always being flexible to our client’s needs. In so doing, we strive to become the foremost hydrological consultancy within Southern Africa.

Hydrologic Consulting (Pty) Ltd is a registered private company (Registration Number 2012/155319/07)

Our Services

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.

Compliance Auditing

Auditing of current operations according to GN 704 and associated DWS Best Practice Guidelines, based on issued DWS water licenses.

Flood Hydrology

Catchment delineation, flood peak and hydrograph estimates, using a variety of techniques as input into Hydraulic (flood-line) Modelling.

Hydraulic (Flood-Line) Modelling

Development and review of 1D, 2D and 1D/2D hydraulic models for fluvial, tidal and surface water flooding investigations, including flood-line delineation.

Integrated Mine Water Management

Integration of mine wide water balances and storm water management plans for the optimal management and use of water.

Integrated Catchment Management

Assessment of the individual and cumulative impacts of mining operations on water resources.

Storm Water Management

Storm water management plans designed as per requirements of GN 704 and IFC guidance (where applicable).

Reserve Determination

Calculation of Environmental Water Requirements (EWRs) to assess potential utilisation of streamflow.

Surface Water Impact Assessments

Reporting on surface water impacts, constraints and opportunities as part of Environmental Impact Assessments (EIAs).

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.

Water Use Licensing

Water use license applications (WULAs) according to DWS standards.  This includes general authorisation risk assessments for water uses as defined in Section 21 of the National Water Act

Our Experience

The map below displays the locations  of some of the projects we have worked on. Locations are approximate only.

Platinum

Platinum

Coal

WSUD

Uranium

Copper

Platinum

Gold

Alloys

Iron

Gold

Gold

Platinum

Coal

Manganese

Gold

Manganese

Gold

Mine Waste

Iron

Gold

Forestry

Forestry

Golf Course

Agriculture

Agriculture

Oil and Gas

Coal

Rail

Power

Coal

Coal

Coal

Chrome

Nickle

Magnetite

Wind Farm

Wind Farm

River Abstraction

Stone

Attenutation Dam

Water Supply

Chrome

Clay

Mine

Fuel Station

Farm Dam Licencing

Chrome

Wind Farm

Coal

Gas Power

Farm Dam Licensing

Farm Dam Licencing

Wind Farm

Cement

Game Farm

Platinum

Solar Power

Retail

Sand

Gold

Wetlands

Coal

Mine Closure

Farm Dam

Gold

Solar

Development

Gold

Solar

Mine

Mine

Clients

Clients Hydrologic have worked on behalf of (either directly or through sub-consultant agreement) include:

♦    Anglo American Platinum

♦    Atha Mines

♦    Bayete Mining Resources

♦    Bushveld Chrome Mine

♦    Circum Minerals

♦    Commissiekraal Coal

♦    DRD Gold

♦   Gestamp Wind

♦    Electricidade de Moçambique

♦    ENI Oil and Gas

♦   Haga Haga Wind Energy Facility RF

♦   Impala Platinum

♦   Japan International Co-op Agency

♦   Keaton Energy

♦   Laudem Mining and Industrial Services

♦   Lonmin

♦   Marataba Safari Lodge

♦   Morobe Mining

♦   Northam Magnetite

♦   Northam Platinum

♦   Paddock Farmers Association

♦   Portucel Pulp and Paper

♦   Princes Grant Golf Course

♦   PPC Cement

♦   Sefateng Chrome

♦    Selkirk Tati Nickel

♦   SolarReserve

♦   Transnet Freight Rail

♦   TSB Sugars

♦   Water Research Commission

♦   Xstrata Alloys

♦   Zululand Anthracite Colliery

Software We Use

PCSWMM  –  ACRU  –  SWAT  –  HEC–RAS  –  SPATSIM  –  ARCGIS  –  QGIS  

Specialists

Hydrologic Consulting was founded in 2012 by Mark Bollaert who operates both independently and in collaboration with other specialists and consultancies. 

Since completing his Masters degree in Hydrology, Mark has been awarded additional qualifications in both South Africa and the United Kingdom, representing his on-going effort towards maintaining a professional approach and continuing in his professional development.

 

 

Mark Bollaert

Mark Bollaert

MSc (Hydrology), CSci, CEnv, C.WEM, Pr.Sci.Nat

Mark has over 15 years of experience working as a hydrologist in both the United Kingdom and South Africa. Mark’s responsibilities include the application of his skills as a hydrologist and as a GIS specialist primarily to projects within South Africa, but also including Mozambique, Tanzania, Zimbabwe, Botswana, Ethiopia, Papua New Guinea, Suriname and the Democratic Republic of Congo.

Jonathan Southwood

Jonathan Southwood

BSc (Geomatics), GPrLS 1539

Jonathan is a professional land surveyor with 3 years of working experience between cadastral & topographical surveying, GIS, project management and recently hydrological model development. Jonathan applies his skills in the capacity of hydrological baseline and environmental impact assessments, as well as hydraulic model development, site-visits/field surveys and cartography.

Articles

Not All Flood-Lines Are Equal (Part 2)

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 the simulation (or modelling) of flooding and resulting definition of flood-lines.  The terms accuracy and detail as they relate to flood modelling...

read more
Not All Flood-Lines Are Equal (Part 1)

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 from a computer model of simulated flooding (or flood model for short).  Flood-lines  usually relate to a  recurrence...

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Why flood-lines (floodlines or flood lines)

Why flood-lines (floodlines or flood lines)

At Hydrologic we keenly pursue the latest developments in flood-line modelling that are sure to result in a more accurate, legible and sensible flooding assessment.    Our ability to produce quality work comes from a solid foundation in flood risk that was gained in...

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“Water is the driving force of all nature.”

Leonardo da Vinci