Watergebiedsplan Spaarnwoude Inventarisatierapport

Watergebiedsplan Spaarnwoude Inventarisatierapport

Watergebiedsplan Spaarnwoude Inventarisatierapport Corsanummer: 15.005288 Archimedesweg 1 postadres: postbus 156 2300 AD Leiden telefoon (071) 3 063 063 Versie 1 telefax (071) 5 123 916 januari 2015 ____________________________________________________________________________________________________ 1. Inleiding ....................................................................................................................................... 4 1.1 Aanleiding ............................................................................................................................. 4 1.2 Doel watergebiedplan ............................................................................................................. 4 1.3 Aanpak, status en procedure ................................................................................................... 4 2. Kaders en criteria ......................................................................................................................... 5 2.1 Wettelijk kader en beleidsthema’s .......................................................................................... 5 2.2 Overzicht normen en richtlijnen.............................................................................................. 5 2.3 Afwegingscriteria voor maatregelen ....................................................................................... 6 2.4 Informatiebronnen voor het watergebiedplan .......................................................................... 7 3. Algemeen Plangebied ................................................................................................................... 8 3.1 Gebiedsgrenzen ...................................................................................................................... 8 3.2 Ontstaansgeschiedenis polders ................................................................................................ 9 3.3 Geologie .............................................................................................................................. 10 3.4 Cultuurhistorische waarden .................................................................................................. 11 3.5 Functies en landgebruik ........................................................................................................ 13 3.5.1 Provinciaal Beleid ............................................................................................... 14 3.5.2 Gemeentelijk beleid ............................................................................................. 15 3.5.3 Landgebruik ........................................................................................................ 20 3.5.4 Natuur ................................................................................................................. 21 3.5.5 Flora- en Faunawet .............................................................................................. 22 4. Houtrakpolder en Inlaagpolder ................................................................................................... 23 4.1 Bodem en landschap ............................................................................................................. 24 4.1.1 Bodemsamenstelling ............................................................................................ 24 4.1.2 Hoogteligging ...................................................................................................... 24 4.1.3 Maaiveldverandering ........................................................................................... 26 4.1.4 Ontwikkelingen in het gebied............................................................................... 27 4.2 Watersysteembeschrijving .................................................................................................... 30 4.2.1 Inlaagpolder ........................................................................................................ 30 4.2.2 Houtrakpolder...................................................................................................... 34 4.3 Peilbeheer ............................................................................................................................ 39 4.3.1 Peilgebieden ........................................................................................................ 39 4.3.2 Peilbesluitpeilen .................................................................................................. 40 4.4 Grondwater .......................................................................................................................... 43 4.4.1 Drooglegging....................................................................................................... 44 4.4.2 Optimaal Grond- en Oppervlaktewaterregime ...................................................... 45 4.4.3 Actueel Grond- en Oppervlaktewaterregime ........................................................ 45 4.5 NBW knelpunten .................................................................................................................. 46 4.6 Klachten ............................................................................................................................... 47 4.7 Waterkwaliteit ...................................................................................................................... 47 4.8 Samenvatting knelpunten...................................................................................................... 49 5. Spaarndammer polders en polder de Velserbroek ........................................................................ 50 5.1 Bodem en landschap ............................................................................................................. 51 5.1.1 Bodemsamenstelling ............................................................................................ 51 5.1.2 Hoogteligging ...................................................................................................... 52 5.1.3 Maaiveldverandering ........................................................................................... 53 5.1.4 Ontwikkelingen in het gebied............................................................................... 54 5.2 Watersysteembeschrijving .................................................................................................... 56 5.2.1 Zuid-Spaarndammerpolder .................................................................................. 57 5.2.2 Noord-Spaarndammerpolder ................................................................................ 60 5.2.3 Polder de Velserbroek .......................................................................................... 64 5.2.4 Oude Spaarndammerpolder .................................................................................. 69 __________________________________________________________________________________ 2 Hoogheemraadschap van Rijnland ____________________________________________________________________________________________________ 5.2.5 Hoger Gelegen 12 ................................................................................................ 71 5.3 Peilbeheer ............................................................................................................................ 71 5.3.1 Peilgebieden ........................................................................................................ 71 5.3.2 Peilbesluitpeilen .................................................................................................. 72 5.3.3 Praktijkpeilen ...................................................................................................... 73 5.4 Grondwater .......................................................................................................................... 74 5.4.1 Drooglegging....................................................................................................... 75 5.4.2 Optimaal grond- en oppervlaktewaterregime ........................................................ 76 5.4.3 Actueel grond- en oppervlaktewaterregime .......................................................... 76 5.5 NBW knelpunten .................................................................................................................. 78 5.6 Klachten ............................................................................................................................... 79 5.7 Waterkwaliteit ...................................................................................................................... 80 5.8 Samenvatting knelpunten...................................................................................................... 84 6. Waarder- en Veerpolder, Zuider-, Rotte-, Zwet- en IJpolder ....................................................... 87 6.1 Bodem en Landschap ........................................................................................................... 87 6.1.1 Bodemsamenstelling ............................................................................................ 87 6.1.2 Hoogteligging ...................................................................................................... 88 6.1.3 Maaiveldverandering ........................................................................................... 89 6.1.4 Ontwikkelingen in het gebied............................................................................... 90 6.2 Watersysteembeschrijving ...................................................................................................

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