The Regional Tax Group has the form of a community scheme. This means it is an independent government body with its own management board. The Executive Committee members of the water boards and the councillors of the municipal authorities together form the management board and the Executive Committee.
Members of the management board
- Representing the Delfland water control board
Mr P. Ouwendijk (Chairman) and Mrs. N.J. Dijkshoorn-van Dijk
deputy member: Mrs M. Koop - Representing the Schieland & Krimpenerwaard water control board
Mr J. Verdoold (dr.) and Mr. C. Habben Jansen
deputy member: A. Hazelbach - Representing the municipal authorities of Schiedam: Y. Volkman
deputy member: Mr C Kahramanoglu - Representing the municipal authorities of Delft: Mrs M. Huijsmans
deputy member: Mr F. van Vliet - Representing the municipal authorities of Vlaardingen: H.E. de Ron
deputy member: Mrs I. Somers-Gardenier - Representing the municipal authorities of Zuidplas: J.W. Schuurman
deputy member: W. ZIjlstra - Secretary to the management board: Mr J.F. Kooistra
Members of the Executive Committee
- Mr P. Ouwendijk(Chairman)
- Mr J. Verdoold (dr.)
- Mr Y Volkman
- The Secretary to the Executive Committee is Mr J.F. Kooistra
Managing Director
- Mr J.F. Kooistra
Management Calendar of the management board 2026
- 19 march 2026 (10.00 a.m.-11.00 a.m.)
- 7 may 2026 (10.00 a.m.-12.00 p.m.)
- 10 september 2026 (10.00 a.m.-12.00 p.m.)
- 3 december 2026 (10.00 a.m.-12.00 p.m.)
You are cordially invited to attend the meetings. You can register in advance with Mr. Sijnesael: asijnesael@derbg.nl
Spoorstraat 7 Schiedam.