For most industries and/or mines effective storm water management is required to prevent contamination of ground and surface water resources. The overall separation of clean and dirty water areas is also considered when compiling storm water management plans. This type of planning allows the operation or facilities to safely transport clean water away from and around infrastructure to prevent possible contamination as well as prevent operational difficulties.
The GCS Hydrology Unit is able to conduct storm water management system investigations and develop storm water management plans. This type of service includes (when required) the design of the necessary infrastructure and can implement these plans on behalf of the client.

Storm water investigations and planning could include any of the following tasks:
Site investigations to determine the status quo of existing systems, or to establish the requirements for new systems
Assess all the areas where necessary to undertake clean and dirty water separation
Collect all other relevant information on authorisations and Water Use License (WUL)
Determine any gaps or shortcomings in the current storm water management systems
Feasibility investigation into different options to analyse the most suitable / economical options for implementation
Conceptual design of proposed infrastructure to ensure that all dirty water runoff reports to dirty water collection and storage systems, and all clean water is diverted
Determine the size of clean and dirty water systems as well as the pollution control facility required to contain all the dirty water for a 1:50 year storm event as prescribed by GN704 of the South African National Water Act (Act 36 of 1998)
Ascertain the water quantity and quality requirements of the major water users in the facility
Compile a comprehensive Storm Water Management Plan for the total impacted footprint or facility
Implementation planning and design of related storm water infrastructure