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The Stormwater Management Plan (SWMP)

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The Stormwater Management Plan (SWMP)

With an increased focus on responsible mining, stormwater management and responsible containment of mine and plant wastewater has become crucial. Nurizon has a specialized division dealing with this highly sensitive issue.

The Stormwater Management Plan (SWMP) is a detailed action plan of how the specific Mine will manage the stormwater runoff on the property. Regulation No. GN 77 (more commonly referred to as GN 704) of the National Water Act stipulates that to reduce the impact of mining activities on the environment, the watercourses that fall within a facility’s footprint shall be separated into ‘clean’ and ‘dirty’ water systems, the latter forming part of a closed system.

  • Dirty water is defined as stormwater run-off from an area (or areas) where the water could have encountered a potential source of contamination, e.g. hydrocarbons. Water from such sources should be intercepted and stored in a pollution control dam (PCD) to form part of a closed system, whereby the water is recycled for use in mine operational processes.
  • Clean water is defined as stormwater run-off from areas which fall outside operational areas and are not contaminated. The clean water management system should, wherever possible, be separated from the closed dirty system if it is to be discharged into a natural watercourse.
In terms of Regulation 704 of the National Water Act (Act No. 36 of 1998), any person or company intending to operate a mining facility must comply with the requirements of this regulation to ensure the conservation of South Africa’s water resources.
 
Nurizon was recently appointed for numerous SWMP and Mine Waste / ROM Stockpile Facilities, to assist our clients with regulatory compliance.

Twickenham Mine SWMP

Stormwater Management Plan and engineering designs for Anglo American Twickenham Mine, consisting of the following farms: Twickenham, Hackney and Pachaskraal.

Nurizon’s client is Practara, project owner / main Client is Anglo American.  

  • Nurizon’s Scope of Services include:
      • Floodline Determination.
      • Geotechnical investigation.
      • Stormwater Management Plan (SWMP).
      • Residue stockpile plan / design (in line with the legislated norms and standards).
      • Presentation of the above listed designs to the DWS Engineering Department and effecting any updates required.

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Nurizon is qualified and highly skilled to assist with any compliance issues for new and existing mines. If you have any questions regarding compliance issues, (better safe than sorry) you are welcome to contact us, and we will be happy to assist.

    Mphahlehle Mine TSF and SWMP

    Nurizon Consulting (Pty) Ltd. [Nurizon] was appointed for the detailed engineering design in terms of the

    i) Stormwater Management Plan (SWMP) and
    ii) Tailings Storage Facility design (wet tailings pad and dry stockpile),
    iii) ROM stockpile and
    iv) Overburden dump, for Mphahlehle Chrome Mine’s full-scale opencast and underground operation.

    The Mphahlehle Chrome Mine is located near Lebowakgomo in the Limpopo Province, approximately 52km south of Polokwane. The operations at the mine will include a wash plant, associated facilities and tailings storage facility (TSF).

    The method for tailings storage will be:

    • Clean- and Dirty Stormwater Channels and Berms (Clean and Dirty Water Delineation).
    • Wet Tailings Concrete Slab. The wet tailings from the wash plant will be allowed to dry on the concrete drying slabs, thereby recovering the maximum volume of water to be reused at the wash plant.
    • Overburden Platform.
    • RoM Pad Platform.
    • Dry Tailings Stockpile.
    • Pollution Control Dams (PCDs).

    Nurizon’s client is Red Kite Environmental Solutions, project owner / main Client is Mphahlele Mining (Pty) Ltd.

    • Nurizon’s Scope of Services include:
        • Geotechnical investigation.
        • SWMP for the proposed Infrastructure and Plant Area, with a clear division of the clean and dirty water areas.
        • Design of the TSF.
        • Stockpiles and Overburden Dump Design.
        • Floodline Analysis.
        • Presentation of the above listed designs to the DWS Engineering Department and effecting any updates required.

    Zebediela Nickel Project – SWMP

    The Zebediela Nickel Project is located approximately 9 km north of Mokopane (Limpopo province of South Africa). The proposed mining right area will be located on farms Uitloop 3KS (1,925.29 ha), Amatava 41 KS and Bloemhof 4 KS (2620.34 ha), and Piet Potgietersrust Town and Townlands 44 KS (115.26 ha).

    The Mining Right Area covers a combined area of approximately 4,661ha.

    Mine infrastructure will comprise approximately 150 ha of the larger Mining Right Area. Mining will be focused on the extraction of 72.28 Mt of sulphide-containing material using an open pit, conventional truck and shovel with partial backfill mining method (approximately 100ktpm Run of Mine (RoM)).

    The top 40 m to 50 m of the disseminated sulphide material is oxidized (Oxide Zone) and will be stockpiled on an overburden facility. The mine will employ a total of 200 people during its LoM (30 Years).

    Nurizon’s client and project owner / main Client is Sefateng Mine.

    • Nurizon’s Scope of Services include:
        • Clean- and Dirty Stormwater Channels and Berms (Clean and Dirty Water Delineation).
        • Pollution Control Dam (PCD) design.
        • Tailings Storage Facility (TSF) design, consisting of the following elements:
          • Tailings drying pad (wet tailings).
          • Dry tailings stockpile (expected Class 4 barrier, to be confirmed as part of the design).
          • Silt Retention Ponds (SRP’s).
          • Presentation of the above listed designs to the DWS Engineering Department and effecting any updates required.

    Connect with Us

    Nurizon is qualified and highly skilled to assist with any compliance issues for new and existing mines. If you have any questions regarding compliance issues, (better safe than sorry) you are welcome to contact us, and we will be happy to assist.

      Sefateng Mine SWMP and TSF

      Nurizon Consulting (Pty) Ltd. [Nurizon] was appointed for the detailed engineering design in terms of the

       i) Pollution Control Dam (PCD) and
       ii) Tailings Storage Facility (TSF) design, for the Sefateng Chrome Mine.

      Sefateng proposes to construct a wash plant onsite. Wet tailings from the wash plant will be allowed to dry on cement drying slabs (1 hectare with 50 000 m3 capacity). This is done to facilitate the maximum recovery of water to be reused at the plant. Once tailings have dried sufficiently they will be transferred to the dry tailings stockpile (3 hectares with 150 000 m3 capacity). The dry tailings facility will be constructed with a type 4 barrier. 

      The wash plant, and tailings facility are considered dirty areas and such all water emanating from this area will be contained in a PCD for reuse in the plant processes.

      Nurizon’s client and project owner / main Client is Sefateng Mine.

      • Nurizon’s Scope of Services include:
          • Clean- and Dirty Stormwater Channels and Berms (Clean and Dirty Water Delineation).
          • Pollution Control Dam (PCD) design.
          • Tailings Storage Facility (TSF) design, consisting of the following elements:
            • Tailings drying pad (wet tailings).
            • Dry tailings stockpile (expected Class 4 barrier, to be confirmed as part of the design).
          • Silt Retention Ponds (SRP’s).
          • Presentation of the above listed designs to the DWS Engineering Department and effecting any updates required.

      Kookfontein SWMP and TSF

      Nurizon Consulting (Pty) Ltd. [Nurizon] was appointed for the engineering design in terms of the:
      i) Geotechnical investigation, 
      ii) Stormwater Management Plan (SWMP) and
      iii) Tailings Storage Facility (TSF) design, for Kookfontein Mine.

      Kookfontein Mine is situated in Rustenburg, North-West Province of South Africa. It is approximately 10.7km north-west of Rustenburg, 2.9km east of Phokeng and 10.2km west of Kanana.

      Nurizon’s client is Practara, project owner / main Client is Nuco Chrome.

      • Nurizon’s Scope of Services include:
          • Geotechnical investigation, focusing on the i) Infrastructure and Plant Area as well as the ii) TSF area.
          • SWMP for the project Area, with a clear division of the clean and dirty water areas.
          • Design of the TSF.
          • Overburden stockpile design (detailed design).
          • ROM stockpile and ROM Tip Design (detailed design).
          • Presentation of the above listed designs to the DWS Engineering Department and effecting any updates required.

      Connect with Us

      Nurizon is qualified and highly skilled to assist with any compliance issues for new and existing mines. If you have any questions regarding compliance issues, (better safe than sorry) you are welcome to contact us, and we will be happy to assist.

        Uitkomst Colliery – SWMP

        Nurizon Consulting (Pty) Ltd. [Nurizon] was appointed for the for engineering design and support in terms of the DWS’s comments received for the Uitkoms Colliery’s WULA (existing license to be updated / amended.

        Uitkomst Main Colliery Mine is situated between Newcastle and Utrecht in the North-Western region of the province of KwaZulu-Natal in South Africa. It is approximately 31.7km North East of Newcastle and 29.1km North West of Utrecht

        Nurizon’s client is and project owner / main Client is Uitkomst Colliery (Pty) Ltd.

        • Nurizon’s Scope of Services include:
            • Updated / revised SWMP for the project Area, with a clear division of the clean and dirty water areas.
            • Floodline Analysis.
            • Presentation of the above listed designs to the DWS Engineering Department and effecting any updates required.

        Afritin, Uis Phase 1 Stage II Fast Track BFS

        AfriTin Mining Namibia (Pty) Ltd. appointed Nurizon Consulting (Pty) Ltd. as civil and structural engineers for the Uis Phase 1 Stage II Fast Track BFS project.

        Uis Tin Mine is located in the Erongo region of Namibia, near the town of Uis. The expansion of the existing plant aims to increase the ore feed from 80 tonnes per hour to ±140 tonnes per hour. Part of the appointment included the SWMP for the Uis Mine.

        Nurizon’s client is and project owner / main Client is Afritin Mining (Pty) Ltd.

        • Nurizon’s Scope of Work, in terms of the Stormwater Management Plan, includes:
            • Clean and Dirty Stormwater Channels and Berms (Clean and Dirty Water Delineation).
            • Pollution Control Dam (PCD).
            • Return Water Dam.
            • Settling Pond.

        Connect with Us

        Nurizon is qualified and highly skilled to assist with any compliance issues for new and existing mines. If you have any questions regarding compliance issues, (better safe than sorry) you are welcome to contact us, and we will be happy to assist.