Our Team

Gamtoos Water’s staff complement comprises approximately 90 personnel who operate in and around Patensie, focusing on the management of water from Kouga Dam to water users.

Nurturing skills development is critical in ensuring the sustainability and effectiveness of the organisation. Our policy is to identify talent and to promote from within.


Rienette Colesky
Chief Executive Officer

Jacques van der Merwe
Co-Ordinating Officer


Derik Thokoane
Manager: Works

Kosie Adriaan
Line Manager

Gideon Stoki
Line Manager

Hans Jantjies
Line Manager

Alfred Go
Line Manager

Water Control

Leon Grundling
Manager: Water Control

Andrew Murray
Assistant Manager

Vuyani Dlomo
Senior Supervisor

Christo Jantjies
Line Manager

Johnny Arends
Line Manager

Hans Goeda
Line Manager

Admin Group