How much of the Netherlands is affected by the problem regulated by the Hoogheemraadschap van Rijnland?
Hoogheemraadschap van Rijnland The Hoogheemraadschap van Rijnland is the oldest water board of the Netherlands, having received its first commission to protect the land from flooding back in 1248 from William II of Holland. It conducts water control activities in the general area known as Rijnland. The Netherlands has 27 Waterboards or "Waterschappen" acting independently from the National government administration to manage the continuing Dutch struggle against water.
North Brabant Noord Brabant ( ] ), also unofficially called Brabant, is a province in the south of the Netherlands. It borders the provinces of South Holland and Gelderland to the north, Limburg to the east, Zeeland to the west, and the Belgian provinces of Antwerp and Limburg to the south. The northern border follows the Meuse (Maas) river westward to its mouth in the Hollands Diep strait, part of the Rhine–Meuse–Scheldt delta.