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Management board

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 Mr R. Tieman
    deputy member: Mrs M. Koop
  • Representing the Schieland & Krimpenerwaard water control board
    Mr J. Verdoold (dr.) and Mr. C. Habben Jansen
    deputy member: W.R. van Heemst
  • Representing the municipal authorities of Schiedam: Mrs A.J.M. Laan (drs.)(deputy Chairman)
    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: Mr B.T. Bikkers
    deputy member: Mrs I. Somers-Gardenier
  • Secretary to the management board: Mr J.F. Kooistra

Members of the Executive Committee 

  • Mr P. Ouwendijk(Chairman)
  • Mrs A.J.M. Laan (drs.) (deputy Chairman)
  • Mr J. Verdoold (dr.)
  • The Secretary to the Executive Committee is Mr J.F. Kooistra

Managing Director 

  • Mr J.F. Kooistra

Management Calendar of the management board 2025

  • 16 mei 2025 (10.00 a.m.-12.00 p.m.)
  • 11 september 2025 (10.00 a.m.-12.00 p.m.)
  • 4 december 2025 (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.