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.
Aartselaar Aartselaar (] , old spelling: "Aertselaer") is a municipality located in the Belgian province of Antwerp. The municipality only comprises the town of Aartselaar proper. On January 1, 2006 Aartselaar had a total population of 14,375. The total area is 10.93 km² which gives a population density of 1,316 inhabitants per km². The municipality of Aartselaar is located in the southern outskirts of Antwerp. It is known for its 1801 windmill (Heimolen) as well as the cycling race called Memorial Rik Van Steenbergen.