Water treatment & supply

Clean industrial water from a polluted river

Illegal mining loads the Ankobra with clay and silt. We abstract that water, treat it to industrial specification, and supply it reliably to three mines — Wassa, Edikan and Chirano.

Clay-laden river water flowing into settling channels ahead of the treatment plant

The problem

Illegal mining — galamsey — washes heavy loads of clay and sediment into the Ankobra, leaving the river too turbid to use directly.

Mines in the Western Region need large, dependable volumes of water to operate. Drawing it straight from a clay-choked river is not an option, and groundwater alone cannot meet demand through the dry season. We close that gap.

What we deliver

  • Year-round, secure water supply to industrial customers
  • Water treated to meet customer and regulatory quality requirements
  • Abstraction managed within sustainable limits
  • Competitive, value-for-money cost of supply

How we treat the water

From a turbid river to industrial-grade supply, in five stages.

  1. 01

    River abstraction

    Raw water is drawn from the Ankobra River through a screened intake and pumped to the treatment works.

  2. 02

    Two-stage settling

    Settling trenches and storage ponds drop out the heavy clay and silt that illegal mining washes into the river.

  3. 03

    Coagulation & clarification

    Aluminium sulphate dosing binds the fine suspended solids so they can be removed, clarifying the water.

  4. 04

    Disinfection & filtration

    Sodium hypochlorite dosing and filtration bring the water to the quality our industrial customers require.

  5. 05

    Pipeline distribution

    Treated water is delivered through a dedicated pipeline network to each mine, monitored and controlled by SCADA.

Two-stage settling trench system for raw water pre-treatment
Two-stage settling trench system for raw-water pre-treatment.

Three sites we supply

One abstraction and treatment system, serving three mining operations through a shared pipeline network.

Wassa

Wassa

A gold mining operation in Ghana’s Western Region, supplied with treated water through a dedicated pipeline branch.

Edikan

Edikan

A gold mining operation in the Western Region, served by the same abstraction and treatment system via its own pipeline.

Chirano water supply site plan

Chirano

Treated water is delivered from a dedicated treatment plant and storage pond to the mine, with raw water drawn from the adjacent Suraw Pond and stream.

On the ground

A lined settling and storage pond under construction
Lined settling & storage pond under construction.
ARC team carrying out right-of-way survey work with the community
Right-of-way survey along the pipeline route.
Community consultation meeting with local residents
Community consultation in an affected village.