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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 Mrs. N.J. Dijkshoorn-van Dijk
    deputy member: Mrs M. Koop
  • Representing the Schieland & Krimpenerwaard water control board
    Mr. J. Verdoold and Mr. C. Habben Jansen
    deputy member: A. Hazelebach
  • Representing the municipal authorities of Schiedam: R. Karens
    deputy member: D. van Gulik
  • Representing the municipal authorities of Delft: Mr F. van Vliet
    deputy member: Mw. M. van Velzen
  • Representing the municipal authorities of Vlaardingen: Mw. S.D. Solleveld
    deputy member: H.E. de Ron
  • Representing the municipal authorities of Zuidplas: J.W. Schuurman
    deputy member: F. van Wijnen
  • Secretary to the management board: Mr J.F. Kooistra

Members of the Executive Committee 

  • Mr P. Ouwendijk(Chairman)
  • Mr J. Verdoold
  • Member not yet known
  • 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.